CN110840661B

CN110840661B - Disease transfer device for emergency department

Info

Publication number: CN110840661B
Application number: CN201911152418.3A
Authority: CN
Inventors: 韩斌如; 王思; 刚婷婷; 李秋萍; 董婷婷; 郭桂丽
Original assignee: Xuanwu Hospital
Current assignee: Xuanwu Hospital
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2022-01-11
Anticipated expiration: 2039-11-20
Also published as: CN110840661A

Abstract

The invention relates to a patient transfer device for emergency department, a base, a moving part and a support mechanism. The patient transfer device further comprises a storage part that can be used to place articles, and the storage part is around the edge of the base and the storage part. In the case of rotating in a second direction opposite to the first direction, it can have a placement state in which its extending direction is substantially parallel to the ground; when the storage part is in the placement state, the storage part can abut against contacting the ground to define at least two third support points in the first direction beyond the line connecting the first support point and the second support point, and the moving portion is configurable To reduce the length to at least eliminate the working mode of the second support point.

Description

Disease transfer device for emergency department

Technical Field

The invention belongs to the technical field of medical rehabilitation instruments capable of being used for Alzheimer's patients or Parkinson's diseases, and particularly relates to a Patient Transfer Device (PTD) for emergency department.

Background

Metastasis in critically ill patients is of increasing interest in medical care, and many similar studies have been performed. For example, the Family members of ICU patients can be used for reference in the development of the evaluation of migration Stress by introducing the Family members migration Stress Scale (FRSS) in foreign countries and applying the FRSS in the Family members of the ICU tumor patients. Substantive interview is carried out on family members of the ICU tumor patients, the psychological feelings and demands of the family members of the ICU tumor patients after the ICU tumor patients are transferred out are known, and a theoretical basis is provided for the psychological intervention of the family members of the ICU tumor patients. By constructing a migration plan mode, the application effect of the intervention mode in the family members of the ICU tumor patients is verified, so that the occurrence of family member migration stress of the ICU tumor patients is reduced, the care capability of the family members is improved, and the survival quality of the ICU tumor patients is improved.

Due to the improvement of science and technology and medical standards, the life of people is continuously prolonged, and the survival rate of disabled people due to injury is improved, so that the society nowadays has a lot of patients who are inconvenient to move, but due to the development of science and technology, the patients who are inconvenient to move still can keep the ability of moving by themselves by proper tools, and the moving range of the patients is different from that of patients who can only be limited to a limited area such as a residence. Various appliances which are helpful for the independent activities of the mobility-impaired people are also continuously developed, particularly the most common and important wheelchair, and the mobility-impaired people can effectively expand the activity range thereof with the help of the wheelchair so as to improve the quality of life. The early wheelchair is mainly manual and needs to be pushed by other people to move, so that the mobility-handicapped people are greatly inconvenienced, otherwise the mobility-handicapped people need to be healthy and full in upper half bodies and can push the wheelchair to move by hands. For people with weak or weak upper body, the wheelchair is not a suitable choice.

With the development of technology, many electric wheelchairs appear on the market. Because the electric wheelchair or the electric scooter is provided with the transmission system driven by electric power, the electric wheelchair or the electric scooter is very favorable for the user to move about by oneself without external force, and what is more, the electric power drive is different from the drive device of petrochemical fuel to cause environmental pollution, so the electric wheelchair or the electric scooter is deeply loved by the user. Electric wheelchairs have developed wheelchairs with a plurality of functions according to different use requirements. For example, the patent document with publication number CN109223332A provides a wheelchair with dining function, which comprises side plates, plate placing grooves, support plates, folding plates, a backrest, a fixed block, a groove, a lever, a support rod and a hydraulic telescopic cylinder, wherein the front ends of the side plates symmetrically fix two support plates, the front side of the side plates is provided with the folding plates, the left and right ends of the folding plates are symmetrically provided with two support plates, the upper ends of the side plates are provided with the plate placing grooves, the front ends of the plate placing grooves are symmetrically provided with two support plates, the front side of the plate placing grooves is provided with the folding plates, the design facilitates the collection and the expansion of the folding plates, the left end of the backrest is provided with the groove, the fixed block is arranged in the groove, the left end of the fixed block is provided with the lever, the right end of the lever is provided with the hydraulic telescopic cylinder, the upper end of the hydraulic telescopic cylinder is provided with a wheel seat, the left end of the wheel seat is provided with the support rod, the support rod is arranged at the lower side of the backrest, the support rod is arranged on the lever, the design facilitates the adjustment of the angle of the backrest, the invention has the advantages of convenient use, convenient adjustment, good comfort and simple structure. For example, patent document CN109431702A discloses a portable liftable wheelchair which can be lifted up and down by a manual or electric wheelchair to a height of about 500 mm. The old man or disabled person user sits on the wheelchair, can squat the same underground with other people when descending to the lowest position, can stand highly unanimously with other people when ascending to the highest position, and the seat can control the rotation 90, and the user sits and can reach the purpose of sitting with other people's tie equally on the wheelchair. The wheelchair is pulled up, and can be pulled and moved like a luggage case, so that the purposes of carrying out and storing are achieved. The folding and lifting of the wheelchair can be realized by selecting an electric or manual hydraulic and manual mechanical lifting push rod, the left-right rotation of the seat and the separation of the seat and the frame can be realized by the seat bolt handle, the folding of the pedal support rod can be realized by turning the pedal support rod, and the folding of the backrest and the armrest can be realized by pulling the armrest.

Further, there is a problem that many articles cannot be stored when a user goes out using the wheelchair device, for example, to make a purchase. Therefore, the existing wheelchair devices are increasingly paying attention to the design of the load carrying capacity of the wheelchair. For example, patent document No. CN108186215A discloses a multifunctional load-bearing wheelchair, in which a folding carrier is coupled to the front lower side of a wheelchair main frame, a telescopic buffer rear wheel frame is provided on the rear lower side of the wheelchair main frame, a control device is provided on the armrest of the wheelchair main frame, and a left power wheel and a right power wheel are provided on the left and right of the wheelchair main frame, respectively; the front lower side of the wheelchair main frame is coupled with the upper folding frame and is provided with an electric push rod A, the front end of the upper folding frame is coupled with the lower folding frame, and the lower sides of the upper folding frame and the lower folding frame are respectively provided with a rear connecting strip and a front connecting strip which are connected with an electric push rod B arranged in the upper folding frame; the front lower end of the downward folding frame is provided with a front universal wheel, and the front end of the downward folding frame is connected with a foot rest in a shaft way; the rear lower side of the wheelchair main frame is connected with a buffer frame in a shaft mode, an expansion bracket is movably arranged in the buffer frame, and the rear lower end of the expansion bracket is provided with a rear universal wheel; the invention has the advantages that: can be automatically folded, stretched and adjusted, can carry people, goods and shopping, and has the advantages of fast adaptation of the control device, more convenient operation, safer, more stable and more comfortable running. However, the wheelchair has at least the following problems: 1. the width dimension of the wheelchair can not be adjusted, so that the center axial plane of the wheelchair is fixed, and after a user turns over, the center of gravity of the user can deviate, and further can deviate from the center axial plane of the wheelchair, so that the side turning of the wheelchair is easily caused. 2. Due to the risk of side turning, the wheelchair can be used for turning over when the wheelchair is still in a limited use environment, and the wheelchair cannot be adjusted in width, so that emergency transfer is needed for emergency treatment when the user has an emergency, and the wheelchair cannot pass through or needs to be stopped to allow the user to pass through after turning over when the user encounters narrow areas such as narrow doors, narrow elevators and the like, thereby delaying time and missing optimal treatment time. 3. In the driving process, the folding load-carrying frame is arranged at the front part of the wheelchair, so that when the folding load-carrying frame is in an unfolding state, the bumpiness of a user can be increased. Meanwhile, in the process of transferring the patient needing first aid, the existing wheelchair cannot effectively reduce the jolt degree of the patient, and further the problem of deterioration of the condition of the patient possibly occurs. Accordingly, the present invention is directed to a patient transfer device that at least reduces the user's bumpy feel.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents when making the present invention, but the space is not limited to the details and contents listed in the above, however, the present invention is by no means free of the features of the prior art, but the present invention has been provided with all the features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

Disclosure of Invention

The word "module" as used herein describes any type of hardware, software, or combination of hardware and software that is capable of performing the functions associated with the "module".

In view of the deficiencies of the prior art, the present invention provides a patient transfer device for emergency department, at least comprising: a base, the shape of which can be defined by a flat plate, so that it can be in a substantially parallel state with the ground; a moving part which can be disposed on a first surface of the base substantially parallel to the ground to provide support to the base, and in a first direction, at least two first support points and at least two second support points can be defined between the moving part and the ground so that the base can be in a substantially parallel state with the ground, and in a case where the moving part is in abutting contact with the ground, a distance between the base and the ground can be increased in a case where a length of the moving part is increased, or the distance between the base and the ground can be decreased in a case where the length of the moving part is decreased, wherein an extension direction of each of a line between the at least two first support points and a line between the at least two second support points can be substantially perpendicular to the first direction and substantially parallel to the ground; a support mechanism which can be arranged on a second surface of the base opposite to the first surface, so that a user can sit and lie on the support mechanism, wherein the user can be positioned between the first support point and the second support point when the user sits and lies on the support mechanism, the patient transfer device further comprises an object placing part which can be used for placing objects, wherein the object placing part can be hinged to the base, so that the object placing part can have a storage state that the extending direction of the object placing part is approximately vertical to the ground when the object placing part rotates around the base along the first direction, or can have a placing state that the extending direction of the object placing part is approximately parallel to the ground when the object placing part rotates around the base along a second direction opposite to the first direction; with the placement section in the placement state, the placement section can be in abutting contact with the ground to define, in the first direction, at least two third support points located outside a line connecting the first support point and the second support point, and the moving section can be configured to reduce in length to eliminate at least an operating mode of the second support point, so that a third distance in the first direction between a projection of a center of gravity of the user on the base and the first support point can be smaller than a fourth distance in the first direction between the projection and the third support point.

According to a preferred embodiment, the support mechanism comprises at least a first carrier plate for supporting the buttocks of the human body, a second carrier plate for supporting the upper body of the human body and a third carrier plate for supporting the lower body of the human body, the first carrier plate being positionable between the first support point and the second support point, wherein: in the second direction, the first bearing plate body, the second bearing plate body and the third bearing plate body can be divided into a first bearing area which can relatively rotate and is used for supporting the left half of the human body and a second bearing area which is used for supporting the right half of the human body, wherein under the condition that the first bearing area and the second bearing area relatively rotate, a user can be switched from a lying posture to a turning posture to drive the projection to move along the second direction, so that the vertical distance between the projection and the central axis of the moving part in the second direction can be switched from a state smaller than a set threshold value to a state larger than the set threshold value; the moving portion may have at least a first use form in which a width of the moving portion in the second direction may be larger than a width of the base, and a second use form in which the width of the moving portion may be reduced such that the vertical distance may be switched from a state larger than the set threshold to a state smaller than the set threshold so that the center axis moves in the second direction, when the moving portion is switched from the first use form to the second use form.

According to a preferred embodiment, the storage part at least comprises a placing plate, a first push rod motor, a first rolling mechanism and a second rolling mechanism, wherein: a first end of the placing plate in the first direction is hinged to a second end of the base in the first direction such that the placing plate can rotate about the second end; the first push rod motor is disposed on the base and can be hinged to the placing plate, wherein the placing plate can rotate in the second direction around the second end in the case that the length of the first push rod motor is increased, or can rotate in the first direction around the second end in the case that the length of the first push rod motor is decreased; the first rolling mechanism and the second rolling mechanism can be arranged on a third end part of the placing plate opposite to the first end part, so that when the placing plate rotates around the second end part along the second direction, the first rolling mechanism and the second rolling mechanism can be in abutting contact with the ground, and the third supporting point is defined by the first rolling mechanism and the second rolling mechanism.

According to a preferred embodiment, in the case that the first carrier panel is arranged on the base and between the first supporting point and the second supporting point, the second carrier panel can be hinged to a first end of the first carrier panel in the first direction, and the third carrier panel can be hinged to a second end of the first carrier panel in the first direction and corresponding to the first end, so that the user can switch from a lying position to a sitting position in the case that the second carrier panel and the third carrier panel rotate about the first carrier panel, wherein: the moving part can also have a third use configuration in which the width of the moving part in the second direction can be smaller than the width of the base in the case of the user being in the lying position, wherein the width of the moving part in the second direction can be reduced and the length thereof in the first direction can be increased in the case of switching the moving part from the first use configuration to the third use configuration, so that the steering force for steering the patient transfer device can be reduced.

According to a preferred embodiment, the mobile part comprises at least a third rolling mechanism and a fourth rolling mechanism usable for defining the first support point, each of which can be arranged on a fourth end of the base opposite to the second end in the first direction, and a fifth rolling mechanism and a sixth rolling mechanism usable for defining the second support point, each of which can be arranged on the second end, wherein: the moving part may further have a fourth use configuration in which the second support point can be eliminated, wherein in the fourth use configuration, the third and fourth rolling mechanisms may be in abutting contact with the ground surface, and the fifth and sixth rolling mechanisms may be separated from the ground surface so that the second support point can be eliminated; the third rolling mechanism, the fourth rolling mechanism, the fifth rolling mechanism, the sixth rolling mechanism, the first rolling mechanism and the second rolling mechanism at least comprise telescopic rods and universal wheels, wherein under the condition that the moving portion is in the fourth use state and the object placing portion is in the placing state, the lengths of the telescopic rods of the third rolling mechanism and the fourth rolling mechanism can be larger than those of the telescopic rods of the first rolling mechanism and the second rolling mechanism, so that the base can be in a state that the fourth end portion is higher than the second end portion, or the lengths of the telescopic rods of the third rolling mechanism and the fourth rolling mechanism can be smaller than those of the telescopic rods of the first rolling mechanism and the second rolling mechanism, and the base can be in a state that the fourth end portion is lower than the second end portion.

According to a preferred embodiment, the moving part is in the first use configuration in a case where a line connecting the universal wheel corresponding to the third rolling mechanism and the universal wheel corresponding to the fourth rolling mechanism is substantially parallel to the ground and substantially perpendicular to the first direction, and/or in a case where a line connecting the universal wheel corresponding to the fifth rolling mechanism and the universal wheel corresponding to the sixth rolling mechanism is substantially parallel to the ground and substantially perpendicular to the first direction, wherein a first distance between the universal wheel corresponding to the third rolling mechanism and the universal wheel corresponding to the fourth rolling mechanism and/or a second distance between the universal wheel corresponding to the third rolling mechanism and the universal wheel corresponding to the fourth rolling mechanism can be greater than a first width dimension of the base in the second direction, wherein: the support mechanism can define a second width dimension in the second direction, the first distance and the second distance defined by the moving portion in the first use configuration can both be greater than the second width dimension, and the second width dimension can be greater than the first width dimension.

According to a preferred embodiment, the moving part is in the second use configuration in a case where the third rolling mechanism slides along the first sliding groove toward a third direction, and the fourth rolling mechanism slides along the first sliding groove toward a fourth direction opposite to the third direction so that the first distance is switched from a state larger than the first width dimension to a state smaller than the first width dimension, and/or in a case where the fifth rolling mechanism slides along the second sliding groove toward the fourth direction, and the sixth rolling mechanism slides along the second sliding groove toward the fourth direction so that the second distance is switched from a state larger than the first width dimension to a state smaller than the first width dimension, wherein: when the moving part is in the second use state, a connecting line of the universal wheel corresponding to the third rolling mechanism and the universal wheel corresponding to the fourth rolling mechanism can be parallel to the ground and perpendicular to the first direction, and/or a connecting line of the universal wheel corresponding to the fifth rolling mechanism and the universal wheel corresponding to the sixth rolling mechanism can be parallel to the ground and perpendicular to the first direction, wherein when the moving part is switched from the first use state to the second use state, the maximum width of the patient transfer device in the second direction can be reduced to a second width size from the first distance or the second distance.

According to a preferred embodiment, the moving part is in the third use configuration in a case where the third rolling mechanism slides along the first sliding groove toward the third direction, or the fourth rolling mechanism slides along the first sliding groove toward the fourth direction, and/or in a case where the fifth rolling mechanism slides along the second sliding groove toward the fourth direction, or the sixth rolling mechanism slides along the second sliding groove toward the third direction, wherein: when the moving portion is in the third use configuration, a linear distance between the universal wheel corresponding to the third rolling mechanism and the universal wheel corresponding to the fourth rolling mechanism may be smaller than the first distance in the first use configuration, and/or a linear distance between the universal wheel corresponding to the fifth rolling mechanism and the universal wheel corresponding to the sixth rolling mechanism may be smaller than the second distance in the first use configuration.

The invention also provides a use method of the patient transfer device, which at least comprises the following steps: arranging a base having a shape that can be defined by a flat plate such that the base can be in a substantially parallel state with a floor surface; arranging a moving part which can be arranged on a first surface of the base, wherein the first surface is approximately parallel to the ground, so as to provide support for the base, and under the condition that the moving part is in abutting contact with the ground, along a first direction, at least two first supporting points and at least two second supporting points can be defined between the moving part and the ground, so that the base can be in an approximately parallel state with the ground; configuring a support mechanism that is arrangeable on a second surface of the base opposite to the first surface so that a user can sit or lie on the support mechanism, wherein the user can be located between the first support point and the second support point with the user sitting or lying on the support mechanism, configuring a placement portion that can be used for placing an item, wherein the placement portion can be hinged to the base so that the placement portion can have a stored state in which an extension direction thereof is substantially perpendicular to the ground surface with rotation of the placement portion about the base in the first direction, or so that the placement portion can have a placed state in which the extension direction thereof is substantially parallel to the ground surface with rotation of the placement portion about the base in a second direction opposite to the first direction; with the placement section in the placement state, the placement section can be in abutting contact with the ground to define, in the first direction, at least two third support points located outside a line connecting the first support point and the second support point, and the moving section can be configured to reduce in length to eliminate at least an operating mode of the second support point, so that a third distance in the first direction between a projection of a center of gravity of the user on the base and the first support point can be smaller than a fourth distance in the first direction between the projection and the third support point.

According to a preferred embodiment, the method of use further comprises the steps of: configuring the support mechanism to: at least including the first bearing plate body that is used for supporting human buttock, the second bearing plate body that is used for supporting human upper half body and the third bearing plate body that is used for supporting human lower half body, first bearing plate body can be located first strong point with between the second strong point, wherein: the first bearing plate body, the second bearing plate body and the third bearing plate body are divided into a first bearing area which can relatively rotate and is used for supporting the left half of the human body and a second bearing area which is used for supporting the right half of the human body, wherein under the condition that the first bearing area and the second bearing area relatively rotate, a user can be switched from a lying posture to a turning posture to drive the projection to move along the second direction, so that the vertical distance between the projection and the central axis of the moving part along the second direction can be switched from a state smaller than a set threshold value to a state larger than the set threshold value; configuring the moving part to: the movable portion may have at least a first use configuration and a second use configuration, and a width of the movable portion in the second direction may be larger than a width of the base in the first use configuration, wherein when the movable portion is switched from the first use configuration to the second use configuration, the width of the movable portion may be reduced so that the vertical distance may be switched from a state larger than the set threshold to a state smaller than the set threshold so that the center axis moves in the second direction.

Drawings

FIG. 1 is a schematic view of a preferred connection structure of a base and a moving part according to the present invention;

FIG. 2 is a schematic view of a preferred arrangement of the moving part in a first use configuration of the present invention;

FIG. 3 is a schematic view of a preferred arrangement of the moving part in a third use mode of the present invention;

FIG. 4 is a schematic view of the arrangement of the moving part in a second preferred mode of use of the present invention;

FIG. 5 is a schematic view of a connection structure of a moving part and a first driving part according to a preferred embodiment of the present invention;

figure 6 is a front view of a preferred patient transfer device of the present invention;

figure 7 is a top view of a preferred patient transfer device of the present invention;

figure 8 is a front elevational view of another preferred patient transfer device of the present invention; and

figure 9 is a top view of another preferred patient transfer device of the present invention.

List of reference numerals

1: a base 2: the moving part 3: telescopic rod

4: universal wheel 5: first slide groove 6: second sliding groove

7: first slider 8: second slider 9: third slide block

10: fourth slider 11: first drive unit 12: mounting hole

13: the support mechanism 14: second driving unit 15: storage part

16: first pusher motor 17: first rolling mechanism 18: second rolling mechanism

1 a: fourth end portion 1 b: second end portion 1 c: first surface

1 d: second surface

2 a: third rolling mechanism 2 b: fourth rolling mechanism 2 c: fifth rolling mechanism

2 d: sixth rolling mechanism

11 a: first drive motor 11 b: second drive motor 11 c: first rotation axis

11 d: second rotation axis

13 a: first bearing plate body 13 b: second carrier plate body 13 c: third bearing plate

13 d: first bearing region 13 e: second bearing area

14 a: second pusher motor 14 b: third pusher motor 14 c: fourth push rod motor

15 a: placing plate 15 b: first end portion 15 c: third end part

α: inclined included angle W1: first width dimension W2: second width dimension

D₁: first distance D₂: second distance D₃: third distance

D₄: a fourth distance

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

Example 1

As shown in fig. 1 to 4, the present invention provides a chassis suitable for a patient transfer apparatus, comprising at least a base 1 and a moving portion 2 provided on a second surface 1c of the base 1 in a direction substantially perpendicular to the ground. The movement of the base 1 can be realized by the moving section 2. The moving part 2 is configured in an operation mode capable of generating a relative displacement with the base 1, that is, the length of the moving part 2 can be increased or decreased, so that the distance between the base 1 and the ground can be increased or decreased. When the chassis is used to support the patient transfer device so that a user can be positioned on the base 1, the centre of gravity of the user can be changed by increasing or decreasing the distance between the base and the ground, and then when, for example, the patient transfer device is required to move at a higher speed, the centre of gravity of the user can be lowered, thereby achieving the purpose of reducing the risk of rollover. When a user is in a crowded environment such as a subway or an elevator, the user is surrounded by surrounding people due to sitting postures of the user, and then is in a state that the sight line is blocked or in a state that the air is not circulated, the gravity center of the user can be raised at the moment so as to reduce the degree that the sight line is blocked or improve the air contact amount of the user, and further the condition of the user is aggravated due to unsmooth breathing can be avoided.

Preferably, at least two first support points and at least two second support points can be defined between the moving part 2 and the ground so that the base 1 can be in a substantially parallel state with the ground. Specifically, the moving unit 2 includes at least a third rolling mechanism 2a, a fourth rolling mechanism 2b, a fifth rolling mechanism 2c, and a sixth rolling mechanism 2 d. The third rolling mechanism 2a and the fourth rolling mechanism 2b can be both provided on the fourth end 1a of the base 1 in the first direction. The fifth rolling mechanism 2c and the sixth rolling mechanism 2d can be provided at the second end portion 1b of the base 1 corresponding to the fourth end portion 1a in the first direction. The third rolling mechanism 2a and the fourth rolling mechanism 2b may be provided at the fourth end portion 1a such that a first connection line therebetween can be substantially perpendicular to the first direction. The fifth rolling mechanism 2c and the sixth rolling mechanism 2d may be provided at the second end portion 1b such that a second line connecting the both can be substantially perpendicular to the first direction. For example, as shown in fig. 2, the first direction can be a horizontal right direction or a horizontal left direction. The first wire, the second wire and the first direction can all be substantially parallel to the base 1 or the ground. Four contact points with the ground can be defined through the third rolling mechanism 2a, the fourth rolling mechanism 2b, the fifth rolling mechanism 2c and the sixth rolling mechanism 2d, and then the parallelism between the base 1 and the ground can be improved, so that the stability of the chassis in the moving process is improved, wherein the contact points formed by the third rolling mechanism 2a and the fourth rolling mechanism 2b and the ground are first supporting points. The contact point formed by the fifth rolling mechanism 2c and the sixth rolling mechanism 2d with the ground is the second supporting point.

Preferably, the third rolling mechanism 2a, the fourth rolling mechanism 2b, the fifth rolling mechanism 2c and the sixth rolling mechanism 2d each include at least a telescopic rod 3 and a universal wheel 4. The universal wheel 4 can be arranged on a first end of the telescopic rod 3 in its length direction, and a second end of the telescopic rod 3 corresponding to the first end can be connected to its corresponding fourth end 1a or second end 1 b. For example, the telescopic rods 3 corresponding to the third rolling mechanism 2a and the fourth rolling mechanism 2b are connected to the fourth end portion 1 a. The telescopic rods 3 corresponding to the fifth rolling mechanism 2c and the sixth rolling mechanism 2d are connected to the second end portion 1 b. The telescopic rod 3 can be in an inclined state so that the extending direction thereof and the base 1 can define an inclined included angle alpha. Preferably, the telescopic rod 3 can be an electro-hydraulic push rod, and then the telescopic rod 3 can be extended or shortened manually or automatically. Preferably, the telescopic rods 3 of the third rolling mechanism 2a, the fourth rolling mechanism 2b, the fifth rolling mechanism 2c and the sixth rolling mechanism 2d can be set to a synchronous control working mode. Further, when the telescopic rods 3 of the third rolling mechanism 2a, the fourth rolling mechanism 2b, the fifth rolling mechanism 2c, and the sixth rolling mechanism 2d are extended by the same length, the distance between the base 1 and the ground can be increased. Or when the telescopic rods 3 of the third rolling mechanism 2a, the fourth rolling mechanism 2b, the fifth rolling mechanism 2c and the sixth rolling mechanism 2d are all shortened by the same length, the distance between the base 1 and the ground can be reduced. Preferably, the telescopic rods 3 of the third rolling mechanism 2a, the fourth rolling mechanism 2b, the fifth rolling mechanism 2c and the sixth rolling mechanism 2d can also be set to be in an independently controlled working mode, so that different telescopic rods 3 can have different telescopic lengths. For example, as shown in fig. 2, when descending a slope, the length of the telescopic links 3 of the third rolling mechanism 2a and the fourth rolling mechanism 2b can be greater than the length of the telescopic links 3 of the fifth rolling mechanism 2c and the sixth rolling mechanism 2d, so that the base 1 can assume a state in which the fourth end portion 1a is higher than the second end portion 1b, whereby it is possible to avoid the user over the base 1 from excessively leaning forward. Or, when ascending, the length of the telescopic rods 3 of the third rolling mechanism 2a and the fourth rolling mechanism 2b can be smaller than the length of the telescopic rods 3 of the fifth rolling mechanism 2c and the sixth rolling mechanism 2d, so that the base 1 can present a state that the fourth end portion 1a is lower than the second end portion 1b, and thus, a user on the base 1 can be prevented from excessively leaning backwards.

Preferably, the fourth end 1a of the base 1 is provided with a first sliding groove 5. The second end 1b of the base 1 is provided with a second sliding groove 6. The shape of each of the first slide groove 5 and the second slide groove 6 can be defined by a circular arc. The first slide groove 5 is provided with a first slider 7 and a second slider 8 which are slidable. The second slide groove 6 is provided with a third slider 9 and a fourth slider 10 which are slidable. The telescopic rod 3 corresponding to the third rolling mechanism 2a is connected to the first sliding block 7. The telescopic rod 3 corresponding to the fourth rolling mechanism 2b is connected to the second sliding block 8. The telescopic rod 3 corresponding to the fifth rolling mechanism 2c is connected to the third slide block 9. The telescopic rod 3 corresponding to the sixth rolling mechanism 2d is connected to the fourth slider 10. Further, the third rolling mechanism 2a and the fourth rolling mechanism 2b can slide along the first slide groove 5. The fifth rolling mechanism 2c and the sixth rolling mechanism 2d are slidable along the second slide groove 6.

Preferably, the form of the moving part 2 can be adjusted by sliding the third rolling mechanism 2a and the fourth rolling mechanism 2b along the first sliding groove 5 and/or sliding the fifth rolling mechanism 2c and the sixth rolling mechanism 2d along the second sliding groove 6, so that the moving part 2 can have at least the first use form, the second use form, and the third use form. As shown in fig. 2, when a line connecting the universal wheel 4 corresponding to the third rolling mechanism 2a and the universal wheel 4 corresponding to the fourth rolling mechanism 2b is substantially parallel to the ground and substantially perpendicular to the first direction, and/or a line connecting the universal wheel 4 corresponding to the fifth rolling mechanism 2c and the universal wheel 4 corresponding to the sixth rolling mechanism 2D is substantially parallel to the ground and substantially perpendicular to the first direction, the moving unit 2 is in the first use configuration in which the first distance D between the universal wheel 4 corresponding to the third rolling mechanism 2a and the universal wheel 4 corresponding to the fourth rolling mechanism 2b is set to be the first distance D₁And/or a second distance D between the universal wheel 4 corresponding to the fifth rolling mechanism 2c and the universal wheel 4 corresponding to the sixth rolling mechanism 2D₂Can be larger than the first width dimension W1 of the base 1 in the second direction. The second direction can be substantially parallel to the ground and substantially perpendicular to the first direction. For example, as shown in fig. 2, the second direction may be a vertically upward or vertically downward direction.

Preferably, the third rolling mechanism 2a slides along the first sliding groove 5 toward the third direction, and the fourth rolling mechanism 2b slides along the first sliding groove 5 toward the fourth direction so that the first distance D₁In the case of switching from the state larger than the first width dimension W1 to the state smaller than the first width dimension W1 and/or in the case where the fifth rolling mechanism 2c slides in the fourth direction along the second slide groove 6, and the sixth rolling mechanism 2d slides in the third direction along the second slide groove 6 so that the second pitch is larger than the first pitchFrom D₂When the state is switched from the state larger than the first width W1 to the state smaller than the first width W1, the moving unit 2 is in the second use state. When the moving part 2 is in the second use configuration, a line connecting the universal wheel 4 corresponding to the third rolling mechanism 2a and the universal wheel 4 corresponding to the fourth rolling mechanism 2b may be substantially parallel to the ground and substantially perpendicular to the first direction, and/or a line connecting the universal wheel 4 corresponding to the fifth rolling mechanism 2c and the universal wheel 4 corresponding to the sixth rolling mechanism 2d may be substantially parallel to the ground and substantially perpendicular to the first direction.

Preferably, the moving part 2 is in the third use configuration when the third rolling mechanism 2a slides in the third direction along the first sliding groove 5, or the fourth rolling mechanism 2b slides in the fourth direction along the first sliding groove 5, and/or when the fifth rolling mechanism 2c slides in the fourth direction along the second sliding groove 6, or the sixth rolling mechanism 2d slides in the third direction along the second sliding groove 6. When the moving unit 2 is in the second use mode, the linear distance between the universal wheel 4 corresponding to the third rolling mechanism 2a and the universal wheel 4 corresponding to the fourth rolling mechanism 2b can be smaller than the first distance D in the first use mode₁And/or the linear distance between the universal wheel 4 corresponding to the fifth rolling mechanism 2c and the universal wheel 4 corresponding to the sixth rolling mechanism 2D can be smaller than the second distance D in the first use state₂. Preferably, as shown in fig. 3 or 4, the third direction may be a counterclockwise direction and the fourth direction may be a clockwise direction.

Preferably, as shown in fig. 5, the chassis further includes a first driving part 11. The first driving portion 11 is disposed on the base 1 and connected to the moving portion 2, so as to provide a driving force for the moving portion 2 to slide along the first sliding groove 5 and/or the second sliding groove 6. Specifically, the first driving part 11 includes at least a first driving motor 11a, a second driving motor 11b, a first rotation shaft 11c, and a second rotation shaft 11 d. The base 1 is provided with a through-hole 12. The first rotation shaft 11c is rotatably provided in the mounting hole 12 such that the first rotation shaft 11c can rotate about its own center axis. The first driving motor 11a is provided on the base 1 and is engaged with the first rotation shaft 11 c. For example, the first drive motor 11a is provided with an external gear, the first rotation shaft 11c is provided with an external gear, the first drive motor 11a and the first rotation shaft 11c are engaged and connected by a gear engagement, and finally the first drive motor 11a can manually or automatically rotate the first rotation shaft 11 c. The second rotation shaft 11d is nested in the first rotation shaft 11c such that the second rotation shaft 11d can rotate relative to the first rotation shaft 11 c. The second driving motor 11b is provided on the base 1 and connected to the second rotation shaft 11d, and the second rotation shaft 11d can be rotated automatically or manually by the second driving motor 11 b.

Example 2

This embodiment is a further improvement of embodiment 1, and repeated contents are not described again.

As shown in fig. 6, the present invention further provides a patient transfer device for emergency department, which at least comprises a base 1, a moving part 2 arranged on the base 1 and a supporting mechanism 13. The movement of the base 1 can be realized by the moving section 2. The moving part 2 is configured in an operation mode capable of generating a relative displacement with the base 1 so that the distance between the base 1 and the ground can be increased or decreased. The support mechanism 13 can be disposed on the second surface 1d of the base 1 corresponding to the first surface 1 c. The user can sit and lie on the supporting mechanism 13, the distance between the base and the ground can be increased or decreased, the gravity center of the user can be changed, and the gravity center of the user can be reduced when the patient transfer device is required to move at a high speed, so that the purpose of reducing the risk of overturning is achieved. When a user is in a crowded environment such as a subway or an elevator, the user is surrounded by surrounding people due to sitting postures of the user, and then is in a state that the sight line is blocked or in a state that the air is not circulated, the gravity center of the user can be raised at the moment so as to reduce the degree that the sight line is blocked or improve the air contact amount of the user, and further the condition of the user is aggravated due to unsmooth breathing can be avoided.

Preferably, the supporting mechanism 13 includes at least a first bearing plate body 13a, a second bearing plate body 13b and a third bearing plate body 13 c. The first bearing plate body 13a is arranged on the base 1, and a first end of the first bearing plate body 13a along the first direction is hinged with a second bearing plate body 13b, so that the second bearing plate body 13b can rotate around the first bearing plate body 13 a. A third bearing plate body 13c is hinged to a second end of the first bearing plate body 13a along the first direction, so that the third bearing plate body 13c can rotate around the first bearing plate body 13 a. Referring again to fig. 6, the first bearing plate body 13a can be used to support the buttocks of the user so that the user can sit on the base 1. The second bearing plate body 13b can be used to support the upper body of the user. The third bearing plate body 13c can be used to support the lower body of the user. When the first bearing plate body 13a, the second bearing plate body 13b and the third bearing plate body 13c are all in a state of being approximately parallel to the ground, a user thereon can be in a lying posture, so that the patient transfer device of the invention can be used as a nursing bed. When the second bearing plate body 13b rotates clockwise relative to the first bearing plate body 13a to assume an upward inclined posture, and the third bearing plate body 13c rotates clockwise relative to the first bearing plate body 13a to assume a downward inclined posture, the user can be changed from the lying posture to the sitting posture. Specifically, as shown in fig. 7, spherical ball joints may be disposed at both the first end and the second end of the first bearing plate body 13 a. Hinge holes can be formed in the second bearing plate body 13b and the third bearing plate body 13c, so that when the spherical hinge is nested in the hinge holes, a spherical pair can be defined, and the second bearing plate body 13b and/or the third bearing plate body 13c can rotate around the first bearing plate body 13 a.

Preferably, as shown in fig. 7, each of the first bearing plate body 13a, the second bearing plate body 13b and the third bearing plate body 13c is divided into a first bearing area 13d for supporting the left half of the human body and a second bearing area 13e for supporting the right half of the human body, which are relatively rotatable, in a second direction substantially perpendicular to the first direction and substantially parallel to the ground. Specifically, the first bearing area 13d and the second bearing area 13e of the first bearing plate body 13a, the second bearing plate body 13b and the third bearing plate body 13c are pivoted with each other, so that the user can turn over when the second driving portion 14 of the first bearing area 13d or the second bearing area 13e extends. When the second driving portions 14 of the first bearing area 13d and the second bearing area 13e are simultaneously extended and the extension lengths are the same, the user can be changed from the lying posture to the sitting posture.

The transition of the user from the lying position to the rolling position can be achieved by a relative rotation of the first bearing region 13d and the second bearing region 13 e. The first bearing area 13d and/or the second bearing area 13e can be provided with a second drive 14, so that the first bearing area 13d and/or the second bearing area 13e can generate a rotational movement based on the drive of the second drive 14. Specifically, referring to fig. 6, the second driving part 14 includes at least a second pusher motor 14a, a third pusher motor 14b, and a fourth pusher motor 14 c. The second push rod motor 14a, the third push rod motor 14b and the fourth push rod motor 14c may be disposed on the base 1. The second push rod motor 14a can be connected with the first bearing plate 13a corresponding to the first bearing area 13d and/or the second bearing area 13e, and then the first bearing plate 13a can be driven to rotate by the extension or shortening of the second push rod motor 14 a. The third push rod motor 14b can be hinged to the second bearing plate 13b corresponding to the first bearing area 13d and/or the second bearing area 13e, and then the second bearing plate 13b can be driven to rotate by extending or shortening the third push rod motor 14 b. The fourth push rod motor 14c can be hinged to the third bearing plate 13bc corresponding to the first bearing area 13d and/or the second bearing area 13e, and then the third bearing plate 13c can be driven to rotate by extending or shortening the fourth push rod motor 14 b. When the second push rod motor 14a, the third push rod motor 14b and the fourth push rod motor 14c are simultaneously extended and the extended lengths are the same, the user can turn over. Under the condition that the first bearing area 13d and the second bearing area 13e rotate relatively, the user can switch from the lying posture to the turning posture to drive the gravity center of the user to move along the second direction, so that the vertical distance between the projection of the gravity center of the user in the direction approximately perpendicular to the ground and the central axis of the moving part 2 along the second direction can be switched from the state smaller than the set threshold value to the state larger than the set threshold value. For example, as shown in fig. 7, when the user turns up, the center of gravity thereof is moved upward, and the vertical distance between the center of gravity and the central axis of the moving part 2 is increased. The set threshold may be zero. The central axis of the moving part 2 means: a line formed by a midpoint of a line connecting the universal wheels of the third rolling mechanism 2a and the universal wheels of the fourth rolling mechanism 2b and a midpoint of a line connecting the universal wheels of the fifth rolling mechanism 2c and the universal wheels of the sixth rolling mechanism 2 d.

Preferably, the moving unit 2 includes at least a third rolling mechanism 2a, a fourth rolling mechanism 2b, a fifth rolling mechanism 2c, and a sixth rolling mechanism 2 d. The third rolling mechanism 2a and the fourth rolling mechanism 2b can be both provided on the fourth end 1a of the base 1 in the first direction. The fifth rolling mechanism 2c and the sixth rolling mechanism 2d can be provided at the second end portion 1b of the base 1 corresponding to the fourth end portion 1a in the first direction. The third rolling mechanism 2a and the fourth rolling mechanism 2b may be provided at the fourth end portion 1a such that a first connection line therebetween can be substantially perpendicular to the first direction. The fifth rolling mechanism 2c and the sixth rolling mechanism 2d may be provided at the second end portion 1b such that a second line connecting the both can be substantially perpendicular to the first direction. For example, as shown in fig. 2, the first direction can be a horizontal right direction or a horizontal left direction. The first wire, the second wire and the first direction can all be substantially parallel to the base 1 or the ground. Four contact points with the ground can be defined through the third rolling mechanism 2a, the fourth rolling mechanism 2b, the fifth rolling mechanism 2c and the sixth rolling mechanism 2d, and then the parallelism of the base 1 and the ground can be improved, so that the stability of the chassis in the moving process is improved.

Preferably, the third rolling mechanism 2a, the fourth rolling mechanism 2b, the fifth rolling mechanism 2c and the sixth rolling mechanism 2d each include at least a telescopic rod 3 and a universal wheel 4. The universal wheel 4 can be arranged on a first end of the telescopic rod 3 in its length direction, and a second end of the telescopic rod 3 corresponding to the first end can be connected to its corresponding fourth end 1a or second end 1 b. For example, the telescopic rods 3 corresponding to the third rolling mechanism 2a and the fourth rolling mechanism 2b are connected to the fourth end portion 1 a. The telescopic rods 3 corresponding to the fifth rolling mechanism 2c and the sixth rolling mechanism 2d are connected to the second end portion 1 b. The telescopic rod 3 can be in an inclined state so that the extending direction thereof and the base 1 can define an inclined included angle alpha. Preferably, the telescopic rod 3 can be an electro-hydraulic push rod, and then the telescopic rod 3 can be extended or shortened manually or automatically. Preferably, the telescopic rods 3 of the third rolling mechanism 2a, the fourth rolling mechanism 2b, the fifth rolling mechanism 2c and the sixth rolling mechanism 2d can be set to a synchronous control working mode. Further, when the telescopic rods 3 of the third rolling mechanism 2a, the fourth rolling mechanism 2b, the fifth rolling mechanism 2c, and the sixth rolling mechanism 2d are extended by the same length, the distance between the base 1 and the ground can be increased. Or when the telescopic rods 3 of the third rolling mechanism 2a, the fourth rolling mechanism 2b, the fifth rolling mechanism 2c and the sixth rolling mechanism 2d are all shortened by the same length, the distance between the base 1 and the ground can be reduced. Preferably, the telescopic rods 3 of the third rolling mechanism 2a, the fourth rolling mechanism 2b, the fifth rolling mechanism 2c and the sixth rolling mechanism 2d can also be set to be in an independently controlled working mode, so that different telescopic rods 3 can have different telescopic lengths. For example, as shown in fig. 2, when descending a slope, the length of the telescopic links 3 of the third rolling mechanism 2a and the fourth rolling mechanism 2b can be greater than the length of the telescopic links 3 of the fifth rolling mechanism 2c and the sixth rolling mechanism 2d, so that the base 1 can assume a state in which the fourth end portion 1a is higher than the second end portion 1b, whereby it is possible to avoid the user over the base 1 from excessively leaning forward. Or, when ascending, the length of the telescopic rods 3 of the third rolling mechanism 2a and the fourth rolling mechanism 2b can be smaller than the length of the telescopic rods 3 of the fifth rolling mechanism 2c and the sixth rolling mechanism 2d, so that the base 1 can assume a state in which the fourth end portion 1a is lower than the second end portion 1b, thereby being capable of preventing the user on the supporting mechanism 13 from excessively leaning backwards.

Preferably, the form of the moving part 2 can be adjusted by sliding the third rolling mechanism 2a and the fourth rolling mechanism 2b along the first sliding groove 5 and/or sliding the fifth rolling mechanism 2c and the sixth rolling mechanism 2d along the second sliding groove 6, so that the moving part 2 can have at least the first use form, the second use form, and the third use form. As shown in fig. 2, when a line connecting the universal wheel 4 corresponding to the third rolling mechanism 2a and the universal wheel 4 corresponding to the fourth rolling mechanism 2b is substantially parallel to the ground and substantially perpendicular to the first direction, and/or a line connecting the universal wheel 4 corresponding to the fifth rolling mechanism 2c and the universal wheel 4 corresponding to the sixth rolling mechanism 2D is substantially parallel to the ground and substantially perpendicular to the first direction, the moving unit 2 is in the first use configuration in which the first distance D between the universal wheel 4 corresponding to the third rolling mechanism 2a and the universal wheel 4 corresponding to the fourth rolling mechanism 2b is set to be the first distance D₁And/or a second distance D between the universal wheel 4 corresponding to the fifth rolling mechanism 2c and the universal wheel 4 corresponding to the sixth rolling mechanism 2D₂Can be larger than the first width dimension W1 of the base 1 in the second direction. The second direction can be substantially parallel to the ground and substantially perpendicular to the first direction. For example, as shown in fig. 2, the second direction may be a vertically upward or vertically downward direction. Preferably, the support mechanism 13 can define a second width dimension W2 in the second direction. The moving part 2 defines a first distance D in the first use configuration₁And a second distance D₂Can be greater than the second width dimension W2. The second width dimension W2 can be greater than the first width dimension W1.

Preferably, the third rolling mechanism 2a slides along the first sliding groove 5 toward the third direction, and the fourth rolling mechanism 2b slides along the first sliding groove 5 toward the fourth direction so that the first distance D₁Is greater than the first width dimensionThe state of W1 is switched to the state smaller than the first width dimension W1 and/or the fifth rolling mechanism 2c slides along the second sliding groove 6 toward the fourth direction, and the sixth rolling mechanism 2D slides along the second sliding groove 6 toward the third direction so that the second distance D is₂When the state is switched from the state larger than the first width W1 to the state smaller than the first width W1, the moving unit 2 is in the second use state. When the moving part 2 is in the second use configuration, a line connecting the universal wheel 4 corresponding to the third rolling mechanism 2a and the universal wheel 4 corresponding to the fourth rolling mechanism 2b may be substantially parallel to the ground and substantially perpendicular to the first direction, and/or a line connecting the universal wheel 4 corresponding to the fifth rolling mechanism 2c and the universal wheel 4 corresponding to the sixth rolling mechanism 2d may be substantially parallel to the ground and substantially perpendicular to the first direction. In the second use configuration, the maximum width of the patient transfer device is reduced from the first distance or the second distance to the second width dimension W2, i.e., the maximum width of the patient transfer device is defined by the width of the support mechanism. Through the setting mode, the following technical effects can be at least achieved: in order to improve the stability of the patient transfer device during the driving process, the distance between the rollers is usually set to be larger than the width of the patient transfer device and to be fixed, and the width of the patient transfer device is fixed, so that the user cannot pass through a region with a small distance, such as a narrow door. The distance between the universal wheels can be adjusted, so that the patient transfer device can conveniently pass through areas with small equal intervals, such as narrow doors. Meanwhile, the shape of the supporting portion 13 of the patient transfer device of the present invention can be changed, and thus the patient transfer device can be applied to alzheimer patients or parkinson patients, so that the patient can take a lying posture or a sitting posture. Both, in the first use configuration, the width of the moving part 2 in the second direction can be greater than the width of the base 1. In the case of switching the mobile part 2 from the first to the second use configuration, the width of the mobile part 2 can be reduced such that the perpendicular distance in the second direction between the projection of the center of gravity of the user in the direction substantially perpendicular to the ground and the center axis of the mobile part 2 can be shifted in the second direction according to the center axisThe moving mode is switched from a state of being larger than the set threshold value to a state of being smaller than the set threshold value. For example, as shown in fig. 2 and 4, when the user turns over upward, the fourth rolling mechanism 2b and the sixth rolling mechanism 2d move upward, so that the first distance and the second distance are both reduced, and at this time, the central axis of the moving portion also moves upward, so that it can be ensured that the vertical distance in the second direction between the projection of the center of gravity of the user in the direction substantially perpendicular to the ground and the central axis of the moving portion 2 can be smaller than the set threshold value, i.e., in a state of close coincidence, and the patient transfer device can be prevented from being turned over due to eccentricity. Meanwhile, the width of the moving part 2 can be dynamically adjusted, so that the turning of a user can be realized in the moving process, and meanwhile, the whole width of the patient transfer device can be greatly reduced after the supporting mechanism is turned over, so that the patient transfer device can conveniently pass through a narrow area, and finally, the transfer time is saved to avoid missing the optimal treatment time. Three, in the third use configuration, the width of the moving part 2 in the second direction can be smaller than the width of the base 1, and in the case where the moving part 2 is switched from the first use configuration to the third use configuration, the width of the moving part 2 in the second direction can be reduced, and the length thereof in the first direction can be increased, so that the steering force for achieving steering of the patient transfer device can be reduced. For example, as shown in fig. 2 and 3, when the moving part is switched from the first use form to the third use form, the width of the moving part in the vertical direction decreases, and the length in the horizontal direction increases. I.e. the wheel spacing decreases. When the nursing personnel push the patient transfer device to move and need to turn around, the steering force required by the patient transfer device during steering can be reduced, and the labor intensity of the nursing personnel is further reduced.

Preferably, the moving part 2 is in the third use configuration when the third rolling mechanism 2a slides in the third direction along the first sliding groove 5, or the fourth rolling mechanism 2b slides in the fourth direction along the first sliding groove 5, and/or when the fifth rolling mechanism 2c slides in the fourth direction along the second sliding groove 6, or the sixth rolling mechanism 2d slides in the third direction along the second sliding groove 6. At the moving part2 in the second use configuration, the linear distance between the universal wheel 4 corresponding to the third rolling mechanism 2a and the universal wheel 4 corresponding to the fourth rolling mechanism 2b can be smaller than the first distance D in the first use configuration₁And/or the linear distance between the universal wheel 4 corresponding to the fifth rolling mechanism 2c and the universal wheel 4 corresponding to the sixth rolling mechanism 2D can be smaller than the second distance D in the first use state₂. Preferably, as shown in fig. 3 or 4, the third direction may be a counterclockwise direction and the fourth direction may be a clockwise direction.

Preferably, as shown in fig. 5, the chassis further includes a first driving part 11. The first driving portion 11 is disposed on the base 1 and connected to the moving portion 2, so as to provide a driving force for the moving portion 2 to slide along the first sliding groove 5 and/or the second sliding groove 6. Specifically, the first driving part 11 includes at least a first driving motor 11a, a second driving motor 11b, a first rotation shaft 11c, and a second rotation shaft 11 d. The base 1 is provided with a through-hole 12. The first rotation shaft 11c is rotatably provided in the mounting hole 12 such that the first rotation shaft 11c can rotate about its own center axis. The first driving motor 11a is provided on the base 1 and is engaged with the first rotation shaft 11 c. For example, the first drive motor 11a is provided with an external gear, the first rotation shaft 11c is provided with an external gear, the first drive motor 11a and the first rotation shaft 11c are engaged and connected by a gear engagement, and finally the first drive motor 11a can manually or automatically rotate the first rotation shaft 11 c. The second rotation shaft 11d is nested in the first rotation shaft 11c such that the second rotation shaft 11d can rotate relative to the first rotation shaft 11 c. The second driving motor 11b is provided on the base 1 and connected to the second rotation shaft 11d, and the second rotation shaft 11d can be rotated automatically or manually by the second driving motor 11 b. The third rolling mechanism 2a or the fifth rolling mechanism 2c can be connected to the first rotation shaft 11 c. The fourth rolling mechanism 2b or the sixth rolling mechanism 2d can be connected to the second rotation shaft 11 d.

Example 3

This embodiment is a further improvement of the foregoing embodiment, and repeated contents are not described again.

Preferably, as shown in fig. 8 and 9, the patient transfer device further includes an object placing portion 15 on which an object can be placed. The placement unit 15 can be provided on the second end 1b of the base 1. Specifically, the placement part 15 may be provided on the second end portion 1b of the base 1 in a hinged manner, so that the placement part 15 can be rotated in the first direction or rotated in the second direction about the second end portion 1 b. When the placement unit 15 is rotated in the first direction, the placement unit 15 can be separated from the ground surface and assume a storage state in which the extension direction of the placement unit 15 can be substantially perpendicular to the ground surface. When the article placing part rotates in the second direction, the article placing part 15 can abut against the ground to be in a placed state, wherein in the placed state, the extending direction of the article placing part 15 can be substantially parallel to the ground, so that the article can be placed on the article placing part 15.

Preferably, the placement unit 15 includes at least a placement plate 15 a. A first end 15b of the placing plate 15a in the first direction is hinged to a second end 1b of the base 1, wherein a first push rod motor 16 is further provided on the base 1. The first push rod motor 16 can be hinged to the placing plate 15a such that the placing plate 15a can be rotated in the second direction about the second end 1b in case the first push rod motor 16 is extended, or the placing plate 15a can be rotated in the first direction about the second end 1b in case the first push rod motor 16 is shortened. Article can be placed on placing board 15a, and then the user when using disease transfer device, can avoid the user in environments such as market shopping, because commodity occupy both hands and lead to the inconvenient problem of operation disease transfer device.

Preferably, the third end 15c of the placement plate 15a, which is opposite to the first end 15b, can be provided with a first rolling mechanism 17 and a second rolling mechanism 18. A third line connecting the first rolling mechanism 17 and the second rolling mechanism 18 to each other can be substantially perpendicular to the first direction and can be substantially parallel to the ground. When the placement unit 15 is placed, the first rolling mechanism 17 and/or the second rolling mechanism 18 can be in abutting contact with the ground, thereby providing support for the placement unit 15. Both the first rolling mechanism 17 and the second rolling mechanism 18 are capable of rotating so that the object placing unit 15 can generate rolling friction with the floor surface. Specifically, the first rolling mechanism 17 and the second rolling mechanism 18 each include at least a telescopic rod 3 and a universal wheel 4. One end of the telescopic rod 3 can be connected to the placing plate 15a, and the other end of the telescopic rod 3 is provided with a universal wheel 4. The length of the telescopic rod 3 can be extended or shortened, and the distance between the placing plate 15a and the ground can be adjusted.

Preferably, the mobile part 2 can have a fourth use configuration in which the object receiving part 15 is in the resting state such that the first rolling mechanism 17 and/or the second rolling mechanism 18 are in abutting contact with the ground, wherein the third rolling mechanism 2a and the fourth rolling mechanism 2b are in abutting contact with the ground, the fifth rolling mechanism 2c and the sixth rolling mechanism 2D are separable from the ground, and the projection of the geometric center of the first bearing plate body 13a on the base 1 and the third distance D between the first connection line defined by the third rolling mechanism 2a and the fourth rolling mechanism 2b are in contact with the ground in the fourth use configuration of the mobile part 2₃Can be smaller than a fourth distance D between the projection of the geometric center of the first bearing plate body 13a on the base 1 and the third connecting line₄. In the prior art, the patient transfer device is usually configured as two sets of wheels, one set for each, such that when a user sits on the patient transfer device, the center of gravity of the user is located between the front wheel and the rear wheel, and the vertical distance between the center of gravity of the user and the front wheel in the horizontal direction is greater than the vertical distance between the center of gravity of the user and the rear wheel in the horizontal direction. I.e. the user is closer to the rear wheel. For example, based on the common knowledge that the amplitude of the front row (i.e. the position close to the front wheels) of the bus is smaller than that of the rear row (i.e. the position close to the rear wheels) of the bus during the driving process of the bus on a bumpy road, the first rolling mechanism 17 and the second rolling mechanism 18 are arranged on the object placing part 15. When the moving part is in the fourth use state and the placing part is in the placing state, the first rolling mechanism 17 and the second rolling mechanism 18 are equivalent to the rear wheels of the patient transfer device, at the moment, the rear wheels of the patient transfer device are switched into the first rolling mechanism and the second rolling mechanism by the fifth rolling mechanism and the sixth rolling mechanism, which is equivalent to increase the distance between the user and the rear wheels of the patient transfer device, and further, the object placing part can be placed on the placing stateThe degree of the jolt received by the user is reduced.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. A patient transfer device for emergency department, comprising at least:

a base (1), the shape of which can be defined by a flat plate, so that it can be substantially parallel to the ground;

A moving part (2), which can be arranged on a first surface (1c) of the base (1) that is substantially parallel to the ground to provide support for the base (1), where the moving part (2) is connected to the base (1). In the case that the ground is in contact with the ground, along the first direction, at least two first support points and at least two second support points can be defined between the moving part (2) and the ground, so that the base (1) can In a state substantially parallel to the ground, the first direction can be a horizontal right direction or a horizontal left direction;

A support mechanism (13), which can be arranged on a second surface (1d) of the base (1) opposite to the first surface (1c), so that the user can sit and lie on the support mechanism (13) ,

It is characterized in that,

The patient transfer device further comprises a storage part (15) that can be used to place articles, and the storage part (15) rotates around the base (1) in a second direction opposite to the first direction , capable of having a placement state in which its extending direction is substantially parallel to the ground;

When the storage part (15) is in the placed state, the storage part (15) can abut against the ground to define a position between the first support point and the ground in the first direction. at least two third support points outside the connecting line of the second support points, and the moving part (2) can be configured to reduce the length to at least eliminate the working mode of the second support points;

The supporting mechanism (13) at least comprises a first bearing plate body (13a) for supporting the buttocks of the human body, a second bearing plate body (13b) for supporting the upper body of the human body and a third bearing plate body for supporting the lower body of the human body (13c), the first bearing plate body (13a) can be located between the first support point and the second support point, wherein:

In the second direction, the first carrying plate body (13a), the second carrying plate body (13b) and the third carrying plate body (13c) can be divided into relatively rotatable A first bearing area (13d) for supporting the left half of the human body and a second bearing area (13e) for supporting the right half of the human body, wherein the first bearing area (13d) and the second bearing area ( 13e) In the case of relative rotation, the user can switch from the lying posture to the turning posture to drive the projection to move along the second direction, so that the distance between the projection and the central axis of the moving part (2) along the first The vertical distance in the two directions can be switched from a state less than a set threshold to a state greater than the set threshold;

The moving part (2) can at least have a first use form and a second use form, and in the first use form, the width of the moving part (2) along the second direction can be larger than the base (1) ), wherein, when the moving part (2) is switched from the first use form to the second use form, the width of the moving part (2) can be reduced, so that the projection and the moving part ( 2) The vertical distance between the central axes along the second direction can be switched from a state greater than the set threshold to less than The state of the set threshold is described.

2 . The patient transfer device according to claim 1 , wherein the storage part ( 15 ) at least comprises a placing plate ( 15 a ), a first push rod motor ( 16 ), a first rolling mechanism ( 17 ) and A second scroll mechanism (18), wherein:

The first end (15b) of the placement plate (15a) in said first direction is hinged to the second end (1b) of the base (1) in said first direction, so that the placement plate (15a) rotatable about said second end (1b);

The first push rod motor (16) is provided on the base (1) and can be hinged to the placing plate (15a), wherein, in the case of an increase in the length of the first push rod motor (16), The placing plate (15a) can be rotated in the second direction around the second end (1b), or in the case of a reduced length of the first push rod motor (16), the placing plate (15a) ) is rotatable about said second end (1b) in said first direction;

Both the first rolling mechanism (17) and the second rolling mechanism (18) can be arranged on the third end portion (15c) of the placing plate (15a) opposite to the first end portion (15b), When the placing plate (15a) rotates in the second direction around the second end (1b), both the first rolling mechanism (17) and the second rolling mechanism (18) can abut against each other. By contacting the ground, and thereby defining the third support point.

3. The patient transfer device according to claim 2, characterized in that, the first carrying plate body (13a) is disposed on the base (1) and is located between the first support point and the In the case between the second supporting points, the second carrying plate body (13b) can be hinged to the first end of the first carrying plate body (13a) along the first direction, the third carrying plate The body (13c) can be hinged to the second end of the first carrying plate body (13a) along the first direction and corresponding to the first end, so that between the second carrying plate body (13b) and all the When the third bearing plate body (13c) rotates around the first bearing plate body (13a), the user can switch from a lying posture to a sitting posture, wherein:

When the user is in the lying posture, the moving part (2) can also have a third use configuration, in which the moving part (2) is in the second direction The width of the base (1) can be smaller than the width of the base (1), wherein, when the moving part (2) is switched from the first use form to the third use form, the moving part (2) moves along the second use form. The width in the direction can be reduced and its length in the first direction can be increased, so that the steering force to achieve the steering of the patient transfer device can be reduced.

4. The patient transfer device according to claim 3, wherein the moving part (2) comprises at least a third rolling mechanism (2a) and a fourth rolling mechanism that can be used to define the first support point (2b) and a fifth rolling mechanism (2c) and a sixth rolling mechanism (2d), the third rolling mechanism (2a) and the fourth rolling mechanism (2b) that can be used to define the second support point All can be arranged on the fourth end (1a) of the base (1) opposite to the second end (1b) along the first direction, the fifth rolling mechanism (2c) and the The sixth rolling mechanism (2d) can all be arranged on the second end portion (1b), wherein:

The moving part (2) can also have a fourth use form capable of eliminating the second support point, wherein, in the fourth use form, the third rolling mechanism (2a) and the fourth rolling mechanism ( 2b) able to come into abutting contact with the ground, and the fifth rolling mechanism (2c) and the sixth rolling mechanism (2d) can be separated from the ground so that the second point of support can be eliminated;

The third rolling mechanism (2a), the fourth rolling mechanism (2b), the fifth rolling mechanism (2c), the sixth rolling mechanism (2d), the first rolling mechanism (17) and Each of the second rolling mechanisms (18) includes at least a telescopic rod (3) and a universal wheel (4), wherein the moving part (2) is in the fourth use state and the storage part (15) is in the In the above-mentioned placement state, the lengths of the telescopic rods (3) of the third rolling mechanism (2a) and the fourth rolling mechanism (2b) can be greater than the telescopic rods (3) of the first rolling mechanism (17) and the second rolling mechanism (18). The length of the rod (3) so that the base (1) can assume a state where the fourth end (1a) is higher than the second end (1b), or the third rolling mechanism (2a) and the fourth rolling mechanism (2b) The length of the telescopic rods (3) can be smaller than the lengths of the telescopic rods (3) of the first rolling mechanism (17) and the second rolling mechanism (18), so that the base (1) can present the fourth end (1a) A state lower than the second end (1b).

5. The patient transfer device according to claim 4, characterized in that the universal wheel (4) corresponding to the third rolling mechanism (2a) and the universal wheel (4) corresponding to the fourth rolling mechanism (2b) When the connecting line is substantially parallel to the ground and substantially perpendicular to the first direction, and/or in the case of the universal wheel (4) corresponding to the fifth rolling mechanism (2c) and the universal wheel corresponding to the sixth rolling mechanism (2d) When the connecting line of (4) is substantially parallel to the ground and substantially perpendicular to the first direction, the moving part (2) is in the first use state, wherein the universal wheel (4) corresponding to the third rolling mechanism (2a) ) the first distance (D ₁ ) between the universal wheel (4) corresponding to the fourth rolling mechanism (2b) and/or the universal wheel (4) corresponding to the fifth rolling mechanism (2c) and the sixth rolling mechanism (2d) The second distance (D ₂ ) between the corresponding universal wheels (4) can be greater than the first width dimension (W1) of the base (1) along the second direction, wherein:

The support mechanism (13) can define a second width dimension (W2) along the second direction, and the moving part (2) defines a first distance (D ₁ ) and a second distance ( D ₂ ) can each be larger than the second width dimension (W2), and the second width dimension (W2) can be larger than the first width dimension (W1).

6. The patient transfer device according to claim 5, wherein the third rolling mechanism (2a) slides along the first sliding groove (5) toward the third direction, and the fourth rolling mechanism (2b) slides along the first sliding groove (5) in the third direction. A sliding groove (5) slides toward a fourth direction opposite to the third direction so that the first distance (D ₁ ) is switched from a state larger than the first width dimension (W1) to a state smaller than the first width dimension (W1) and/or when the fifth rolling mechanism (2c) slides along the second sliding groove (6) toward the fourth direction, and the sixth rolling mechanism (2d) moves along the second sliding groove (6) toward the fourth direction When sliding in the fourth direction so that the second distance (D ₂ ) is switched from a state larger than the first width dimension (W1) to a state smaller than the first width dimension (W1), the moving part (2) is in the first width dimension (W1). 2. Use form, where:

When the moving part (2) is in the second use configuration, the connection between the universal wheel (4) corresponding to the third rolling mechanism (2a) and the universal wheel (4) corresponding to the fourth rolling mechanism (2b) is The line can be parallel to the ground and perpendicular to the first direction, and/or the connection line between the universal wheel (4) corresponding to the fifth rolling mechanism (2c) and the universal wheel (4) corresponding to the sixth rolling mechanism (2d) can be Parallel to the ground and perpendicular to the first direction, wherein, when the moving part (2) is switched from the first use form to the second use form, the patient transfer device is in the second direction. The maximum width can be reduced from the first distance (D ₁ ) or the second distance (D ₂ ) to a second width dimension (W2).

7. The patient transfer device according to claim 6, characterized in that, when the third rolling mechanism (2a) slides along the first sliding groove (5) toward the third direction, or the third rolling mechanism (2a) slides toward the third direction along the first sliding groove (5) When the four rolling mechanism (2b) slides along the first sliding groove (5) toward the fourth direction, and/or when the fifth rolling mechanism (2c) slides along the second sliding groove (6) When sliding toward the fourth direction, or when the sixth rolling mechanism (2d) slides toward the third direction along the second sliding groove (6), the moving part (2) is in the third direction. Three forms of use, of which:

When the moving part (2) is in the third use form, between the universal wheel (4) corresponding to the third rolling mechanism (2a) and the universal wheel (4) corresponding to the fourth rolling mechanism (2b) The straight-line distance can be smaller than the first distance (D ₁ ) in the first use form, and/or the universal wheel (4) corresponding to the fifth rolling mechanism (2c) and the sixth rolling mechanism (2d) corresponding to the The straight-line distance between the wheels (4) can be smaller than the _second distance (D2) in the first use configuration.

8. A method of using a patient transfer device, wherein the method of using at least comprises the following steps:

disposing the base (1) whose shape can be defined by a flat plate, so that the base (1) can be substantially parallel to the ground;

A moving part (2) that can be arranged on a first surface (1c) of the base (1) that is substantially parallel to the ground to provide support for the base (1) is arranged, and the moving part (2) is connected to the base (1). In the case that the ground is in contact with the ground, along the first direction, at least two first support points and at least two second support points can be defined between the moving part (2) and the ground, so that the base (1) can In a state substantially parallel to the ground, the distance between the base (1) and the ground can be increased when the length of the moving part (2) increases, or when the length of the moving part (2) decreases , the distance between the base (1) and the ground can be reduced, wherein the respective extension of the connection line between the at least two first support points and the connection line between the at least two second support points The directions can each be substantially perpendicular to the first direction and substantially parallel to the ground;

A support mechanism (13) that can be arranged on a second surface (1d) of the base (1) opposite to the first surface (1c) is configured, so that the user can sit and lie on the support mechanism (13) , wherein, when the user is sitting and lying on the support mechanism (13), the user can be located between the first support point and the second support point,

A storage portion (15) that can be used to place articles is configured, wherein the storage portion (15) can be hinged to the base (1), so that the storage portion (15) can be positioned along the base (1) around the base (1). In the case of rotating in the first direction, it can have a storage state in which its extending direction is substantially perpendicular to the ground, or the storage part (15) can be rotated around the base (1) along the second direction opposite to the first direction. In the case of two-direction rotation, it can be placed in a state where its extending direction is substantially parallel to the ground;

When the storage part (15) is in the placed state, the storage part (15) can abut against the ground to define a position between the first support point and the ground in the first direction. At least two third support points outside the connecting line of the second support points, and the moving part (2) can be configured to reduce the length to at least eliminate the working mode of the second support points, so that the user The third distance (D ₃ ) along the first direction between the projection of the center of gravity on the base (1) and the first support point can be smaller than the projection and the third support point A fourth distance (D ₄ ) along the first direction between them.

9. using method according to claim 8, is characterized in that, described using method also comprises the steps:

The supporting mechanism (13) is configured to at least include a first bearing plate body (13a) for supporting the buttocks of the human body, a second bearing plate body (13b) for supporting the upper body of the human body, and a first bearing plate body (13b) for supporting the lower body of the human body. Three bearing plate bodies (13c), the first bearing plate body (13a) can be located between the first support point and the second support point, wherein:

In the second direction, the first carrying plate body (13a), the second carrying plate body (13b) and the third carrying plate body (13c) are divided into relatively rotatable parts for A first bearing area (13d) for supporting the left half of the human body and a second bearing area (13e) for supporting the right half of the human body, wherein the first bearing area (13d) and the second bearing area (13e) In the case of relative rotation, the user can switch from the lying posture to the turning posture to drive the projection to move along the second direction, so that the distance between the projection and the central axis of the moving part (2) is along the first axis. The vertical distance in the two directions can be switched from a state less than a set threshold to a state greater than the set threshold;

The moving part (2) is configured to have at least a first use form and a second use form, and in the first use form, the width of the moving part (2) in the second direction can be is larger than the width of the base (1), wherein in the case where the moving part (2) is switched from the first use form to the second use form, the width of the moving part (2) can be reduced, so that the The vertical distance can be switched from a state greater than the set threshold value to a state less than the set threshold value in a manner that the central axis moves in the second direction.