CN107997890B

CN107997890B - medical wheelchair

Info

Publication number: CN107997890B
Application number: CN201711446324.8A
Authority: CN
Inventors: 乔鲁军; 刘健; 樊晓光; 崔文娟; 王亨; 杨光虎
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-27
Filing date: 2017-12-27
Publication date: 2023-12-05
Anticipated expiration: 2037-12-27
Also published as: CN107997890A

Abstract

The invention discloses a medical wheelchair which comprises two symmetrically arranged first beams, two symmetrically arranged top sticks, a chair cushion part, a backrest part and a chair cushion part. The invention uses the backrest rod with a four-bar structure to adjust the angle of the bag body used as the backrest so as to adapt to leaning postures of various backs; the length of the bag body serving as the cushion is adjusted by the extension degree of the top stick, so that the length of thighs of various users is adapted, the effect of completely wrapping the thighs is achieved, and fatigue after long sitting is avoided.

Description

Medical wheelchair

Technical Field

The invention relates to medical equipment, in particular to a medical wheelchair.

Background

Wheelchairs are an important tool for medical rehabilitation, which is not only a walking aid for disabled limbs and mobility impaired people, but also enables them to exercise and participate in social activities by means of wheelchairs.

The patient sits in the wheelchair for an average of more than 8 hours per day, so the comfort of the wheelchair is of paramount importance. In general, wheelchairs are sold in one model to patients with different sizes and different requirements. Each patient has different requirements for wheelchairs.

Therefore, there is a need for a wheelchair that better meets the needs of patients.

Disclosure of Invention

The invention aims to solve the technical problem of providing a medical wheelchair which meets the requirements of patients.

In order to achieve the above object, according to one aspect of the present invention, there is provided a medical wheelchair comprising two symmetrically disposed first beams, which are disposed in a front-rear direction, and whose inner side surfaces are provided with guide grooves along a length direction thereof, rear ends of the two first beams being respectively fixed to both ends of a second beam; two symmetrically arranged top sticks which move along the guide groove and are connected with the guide groove of the first beam through a fixing part; the first chair cushion part comprises a bag body and a plurality of supporting rods arranged along the length direction of the bag body, and the supporting rods are connected with the bag body; the backrest comprises a backrest rod, a first connecting rod, a second connecting rod and a supporting seat, wherein a first oblong hole is formed in the upper portion of the backrest rod, a first clamping pin which moves along the first oblong hole is arranged in the first oblong hole, the first clamping pin is fixed with the top of the first connecting rod, the bottom of the first connecting rod is hinged with the middle rear portion of a first beam, the lower portion of the backrest rod is hinged with the top of the second connecting rod, the bottom of the second connecting rod is hinged with the middle portion of the first beam, the supporting seat is connected with the first beam, and the front surface of the backrest rod and the front surface of the supporting seat are fixed with the rear surface of a bag body of the first cushion part; the second chair cushion part comprises a fixed plate, a first spring, a conduit and a pull rope, wherein the fixed plate is fixed with the rear part of the lower surface of the first beam, the fixed plate is fixed with one end of the first spring, the other end of the first spring is fixed with one end of the pull rope, the conduit is sleeved outside the pull rope, the conduit is fixed with the lower surface of the first beam, the other end of the pull rope is fixed with the lower end of the bag body, and the rear surface of the front part of the bag body is propped against the front end surface of the top stick.

Preferably, the supporting seat of the medical wheelchair is connected with the first beam through the backrest rod, and the top of the supporting seat is fixed with the lower end of the backrest rod.

Preferably, a first permanent magnet is configured at the lower end of the backrest rod, a first electromagnet is configured on the upper surface of the second beam, the second beam is located at the lower end of the second connecting rod, the lower end of the first connecting rod is fixed with an output shaft of the second motor, the second motor is fixed with the first beam, and a power module of the first electromagnet and a power module of the second motor are connected with the user terminal through a communication module.

Preferably, the top of the bag body is fixed with the top of the connecting rope, the bottom of the connecting rope is fixed with the bottom of the bag body, the connecting rope is connected with the middle parts of the supporting rods, and the other end of the pull rope is fixed with the lower end of the connecting rope.

Preferably, the outer surface of the support stick is provided with a layer of traditional Chinese medicine.

Preferably, the fixed part comprises a second bayonet lock, a connecting rod and a dovetail guide rail, wherein the dovetail guide rail is arranged in the guide groove of the first beam along the length direction of the guide groove, the top rod is provided with a dovetail groove along the length direction of the top rod, the dovetail groove is matched with the dovetail guide rail and moves along the dovetail guide rail, one end of the connecting rod is connected with the end face of the top rod, a plurality of bayonet locks are transversely arranged in the connecting rod along the transverse direction, a guide hole is transversely arranged on the first beam, a second bayonet lock is sleeved in the guide hole, a bayonet lock cap is arranged at one end, far away from the first beam, of the second bayonet lock, and a second spring is arranged between the second bayonet lock and the guide hole.

The medical wheelchair disclosed by the invention is different from the prior art in that the angle of a bag body serving as a backrest is adjusted by a backrest rod with a four-bar structure so as to adapt to leaning postures of various backs; the length of the bag body serving as the cushion is adjusted by the extension degree of the top stick, so that the length of thighs of various users is adapted, the effect of completely wrapping thighs is achieved, and fatigue after long sitting is avoided. And a plurality of support rods are used as supports of a user, so that the skin of the user can realize ventilation in gaps of the support rods, and when the whole wheelchair moves, the seat ventilation is realized naturally, and the bedsore is avoided. Compared with a backrest rod directly hinged with the first beam, the four-link backrest rod has the overturning angle which meets the comfort requirement of a human body on the backrest and meets the ergonomics.

The medical wheelchair of the invention is further described below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic front view of a wheelchair for medical use according to an embodiment of the present invention;

FIG. 2 is a schematic front view of a variation of FIG. 1;

FIG. 3 is another motion state diagram of FIG. 2;

FIG. 4 is a schematic view of the alternative motion state of FIG. 2;

FIG. 5 is a schematic view of the alternative motion state of FIG. 2;

FIG. 6 is a left side schematic view of FIG. 2;

FIG. 7 is a top view of FIG. 2 after rotation;

FIG. 8 is a schematic structural view of a support stick with a layer of traditional Chinese medicine;

fig. 9 is an enlarged partial schematic view of fig. 7 after rotation.

Detailed Description

Referring to fig. 1 to 9, and particularly to fig. 1, 6 and 7, according to the present invention, the medical wheelchair includes two symmetrically disposed first beams 100, two symmetrically disposed top sticks 300, a first cushion portion 200, a backrest portion 50 and a second cushion portion 400.

Specifically, two symmetrically arranged first beams 100 are arranged in the front-rear direction, and guide grooves 110 are formed in the inner side surfaces thereof along the length direction thereof. The rear ends of the two first beams 100 are fixed to both ends of the second beam 106, respectively. Two symmetrically arranged top sticks 300 move along the guide groove 110, which is connected to the guide groove 110 of the first beam 100 by the fixing part 700. The first cushion portion 200 includes a bag 201 and a plurality of support rods 202 arranged along the longitudinal direction of the bag 201, and the support rods 202 are connected to the bag 201. The backrest 500 includes a backrest rod 510, a first link 520, a second link 530, and a support base 540. The upper portion of the backrest rod 510 is provided with a first oblong hole 511. A first bayonet 521 is provided in the first oblong hole 511 to move along the same. The first bayonet 521 is fixed to the top of the first link 520. The bottom of the first link 520 is hinged to the middle rear portion of the first beam 100, and the lower portion of the backrest link 510 is hinged to the top of the second link 530. The bottom of the second link 530 is hinge-coupled to the middle of the first beam 100, the support base 540 is coupled to the first beam 100, and the front surface of the backrest lever 510 and the front surface of the support base 540 are fixed to the rear surface of the pocket 201 of the first cushion part 200.

Preferably, the second seat cushion 400 includes a fixed plate 401, a first spring 402, a guide tube 403, and a pull cord 404. The fixing plate 401 is fixed to the rear portion of the lower surface of the first beam 100, the fixing plate 401 is fixed to one end of the first spring 402, the other end of the first spring 402 is fixed to one end of the pull rope 404, and the pull rope 404 is sleeved with the guide pipe 403. The conduit 403 is fixed to the lower surface of the first beam 100, and the other end of the string 404 is fixed to the lower end of the bag 201. Wherein the rear surface of the front portion of the bag 201 abuts against the front end surface of the top stick 300.

In use, referring to fig. 2, 3, 4 and 5, the backrest of the bag 201 of the first cushion 200 is fixed by the backrest rod 510 and the support base 540 of the four-bar linkage structure, and the support base 540 is used as a first support point of the lower portion of the bag 201, and the front end of the top stick 300 is used as a second support point of the bag 201. The left and right ends of the lower portion of the bag 201 are supported and restrained while being suspended by the top stick 300.

The present invention adjusts the angle of the pocket 201 as a backrest with the backrest rod 510 of the four-bar structure to accommodate various leaning postures of the back. The length of the bag body 201 serving as a cushion is adjusted according to the elongation degree of the top stick 300, so that the length of thighs of various users can be adapted, the effect of completely wrapping the thighs can be achieved, and fatigue after sitting for a long time can be avoided. In addition, the plurality of support rods 202 are used as the support of the user, so that the skin of the user can realize ventilation in the gaps of the support rods 202, and the natural seat ventilation is realized when the whole wheelchair moves, thereby avoiding the generation of bedsores. Wherein, the four-link backrest bar 510 has a turnover angle more suitable for comfort of a human body for a backrest and is ergonomic than the backrest bar hinged directly to the first beam 100.

Wherein the support base 540 is fixed to the first beam 100.

Wherein, the front surface of the supporting seat 540 is provided with an arc-shaped groove.

The rear end of the first beam 100 is fixed to the lower end of the push rod 105, the front end of the first beam 100 is fixed to the landing leg 104, the front portion of the first beam 100 is fixed to the middle portion of the grab rail 103, the lower end of the grab rail 103 is hinged to the front wheel 102, and the middle portion of the first beam 100 is hinged to the rear wheel 101.

The supporting rods 202 are fixedly connected with the bag 201, and the cross section of the supporting rods 202 may be circular, rectangular or square, and only one supporting rod 202 is arranged in the thickness direction of the bag 201, i.e. a row of supporting rods 202 is arranged along the length direction of the bag 201. The support sticks 202 laterally support the left and right ends of the bag 201.

Preferably, the support base 540 is connected to the first beam 100 through the backrest rod 510, and the top of the support base 540 is fixed to the lower end of the backrest rod 510.

According to the invention, the bag 201 is fixed by the supporting seat 540 moving along with the backrest rod 510, so that the height and the inclination angle of the bag 201 can be adjusted, and the buttocks of a human body can be better wrapped, so that the sitting of the human body is not tired for a long time. Specifically, referring to fig. 2 and 4, when the backrest 510 of the four-bar structure is rotated to a higher position, the horizontal plane of the bag 201 as a seat cushion is changed to an inclined plane, and generally, only one point of the horizontal plane of the bag 201 contacts with the buttocks, so that the buttocks cannot be well wrapped, and the inclined bag 201 can wrap the buttocks with an arc surface, thereby achieving a good buttock wrapping effect, and dispersing the pressure of the buttocks, so that sitting for a long time is not tired.

Preferably, the lower end of the backrest rod 510 is provided with a first permanent magnet, the upper surface of the second beam 106 is provided with a first electromagnet, the second beam 106 is positioned at the lower end of the second connecting rod 530, the lower end of the first connecting rod 520 is fixed with the output shaft of the second motor, the second motor is fixed with the first beam 100, and the power module of the first electromagnet and the power module of the second motor are connected with the user terminal through the communication module.

Referring to fig. 2 and 4, the present invention pushes the backrest bar 510 to the highest position by repulsive force of the first electromagnet and the second electromagnet so as to lift the pocket 201, thereby rotating the second link 530 to assume a vertical state so as to lift the pocket 201 as a seat cushion, change the inclination angle of the pocket 201, and remotely control the rotation thereof by the user terminal. Referring to fig. 4 and 5, the second motor drives the first link 520 to rotate so as to control the inclination angle of the backrest rod 510, thereby satisfying the needs of the patient.

Of course, the manner of rotating the second link 530 to the vertical state may also be: the lower end of the second link 530 is fixed to an output shaft of a first motor, which is fixed to the first beam 100, and a power module of the first motor is connected to the user terminal through a communication module. That is, the user terminal remotely controls the first motor to rotate so that it controls the height and the front and rear positions of the pouch 201.

The present invention controls the height and angle of the backrest bar 510 by controlling the motor or magnet so as to meet different needs of the user, and makes the user sit for a long time without tiredness by the magnet for the user's magnetic therapy.

Preferably, the top of the bag 201 is fixed to the top of the connection string 203, the bottom of the connection string 203 is fixed to the bottom of the bag 201, the connection string 203 is connected to the middle parts of the plurality of support rods 202, and the other end of the pull string 404 is fixed to the lower end of the connection string 203.

Wherein, a through hole can be formed in the middle of the supporting sticks 202, and the connecting rope 203 passes through the through hole and is fixed with the supporting sticks 202 through interference fit with the through hole.

According to the invention, the plurality of support rods 202 are connected in series through the connecting rope 203, so that the connecting rope 203 can be used as a framework of the support rods 202, and the pull rope 404 can conveniently pull the support rods 202 to drive the bag body 201 to move, thereby preventing the plurality of support rods 202 in the bag body 201 from being disordered and prolonging the service life of the bag body 201.

Of course, the connection string 203 may be connected to the plurality of support rods 202 through a plurality of third springs. Thereby, the principle of the Simmons mattress is used for reference, and the supporting rod 202 can swing and rotate, so that a user can sit more comfortably. The structure that the upper side or the front side is the supporting stick 202, the middle part is the third spring, and the rear side or the lower side is the connecting rope 203 is firmer.

Preferably, the outer surface of the support stick 202 is provided with a layer 600 of traditional Chinese medicine.

Referring to fig. 8, the present invention can promote blood circulation at the contact part of the user and avoid hemorrhoids through the above-mentioned traditional Chinese medicine layer. Wherein the bag 201 is made of breathable cotton cloth, nylon cloth or silk.

Specific cases

Wang Mou, 35 years old, women, 155cm in height, shandong, and calf muscle atrophy for 5 years, often suffer from hemorrhoids attacks because they take a wheelchair for more than 8 hours each day. After the wheelchair with the traditional Chinese medicine layer is used, the feedback sitting posture is comfortable and adjustable, the hip wrapping performance is good, the cushion length is adjustable, the thigh wrapping performance is good, and no hemorrhoids are generated within three months.

Tan Mou A male, 30 years old, 185cm tall, henan, 3 years fractured right leg, often had hemorrhoids attacks due to over 10 hours of wheelchair travel each day. After the wheelchair with the traditional Chinese medicine layer is used, the length of the feedback cushion is adjustable, the thigh wrapping performance is good, the buttock wrapping performance is good, the backrest angle is comfortable, the ventilation performance of the framework is good, and no hemorrhoids are generated within three months.

Pathological experiments

At present, 300 patients taking wheelchairs for more than 8 hours every day within 15-65 years old are screened in a certain hospital, and are randomly divided into three groups, wherein the first group is an example 1, the wheelchairs of the invention without a traditional Chinese medicine layer are selected, the second group is an example 2, the wheelchairs of the invention with a traditional Chinese medicine layer are selected, the third group is a comparative example, the main wheelchairs on the market are selected, the three groups of patients take the wheelchairs for more than 8 hours every day, the number of hemorrhoids attacks within three months is observed, and the statistical results are shown in the following table:

；

compared with the traditional wheelchair, the wheelchair with the seat ventilation function has the advantages that the incidence rate of hemorrhoids is reduced, the wheelchair is universally reflected to be adjustable, the sitting is comfortable, the sitting is not tired for a long time, the wheelchair with the traditional Chinese medicine layer can further reduce the incidence rate of hemorrhoids, and the reason that the incidence rate is relatively more in the third month is probably that the efficacy of the traditional Chinese medicine layer is reduced, but the phenomenon of hemorrhoids can be continuously avoided by changing the medicine.

Preferably, referring to fig. 9, the fixing portion 700 includes a second bayonet 710, a connecting rod 720, and a dovetail rail 730, the dovetail rail 730 is disposed in the guide groove 110 of the first beam 100 along the length direction thereof, the top rod 300 is provided with a dovetail groove along the length direction thereof, the dovetail groove is matched with the dovetail rail 730 and moves along the dovetail groove, one end of the connecting rod 720 is connected with the end surface of the top rod 300, a plurality of clamping holes 721 are laterally disposed in the connecting rod 720, the first beam 100 is laterally provided with a guide hole 190, the second bayonet 710 is sleeved in the guide hole, one end of the second bayonet 710 far away from the first beam 100 is provided with a bayonet cap 711, and a second spring 712 is disposed between the second bayonet 710 and the guide hole 190.

Of course, the structure of the fixing portion 700 may be a structure of a plurality of conventional buckles, or a structure of a rack and pinion driven by a self-locking motor.

The present invention can fix the position of the top stick 300 to maintain the front and rear state when the top stick 300 is moved to the proper position, i.e., when the length of the pocket 201 as the seat cushion is adjusted to the proper position, by the above-mentioned fixing part 700 like the waist belt of the man. The fixing part 700 of the rack and pinion structure driven by the self-locking motor can be automatically adjusted by the motor and can be controlled by the user terminal.

The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.

Claims

1. A medical wheelchair, characterized in that: comprising

The two symmetrically arranged first beams (100) are arranged in the front-back direction, guide grooves (110) are formed in the inner side surfaces of the first beams along the length direction of the first beams, and the rear ends of the two first beams (100) are respectively fixed with the two ends of the second beam (106);

two symmetrically arranged top sticks (300) which move along the guide groove (110) and are connected with the guide groove (110) of the first beam (100) through a fixing part (700);

a first cushion portion (200) that includes a bag body (201) and a plurality of support rods (202) arranged in a longitudinal direction of the bag body (201), the support rods (202) being connected to the bag body (201);

the backrest part (500) comprises a backrest rod (510), a first connecting rod (520), a second connecting rod (530) and a supporting seat (540), wherein a first oblong hole (511) is formed in the upper part of the backrest rod (510), a first clamping pin (521) moving along the first oblong hole is arranged in the first oblong hole (511), the first clamping pin (521) is fixed with the top of the first connecting rod (520), the bottom of the first connecting rod (520) is hinged with the middle rear part of the first beam (100), the lower part of the backrest rod (510) is hinged with the top of the second connecting rod (530), the bottom of the second connecting rod (530) is hinged with the middle part of the first beam (100), the supporting seat (540) is connected with the first beam (100), and the front surface of the backrest rod (510) and the front surface of the supporting seat (540) are fixed with the rear surface of a bag body (201) of the first cushion part (200);

a second seat cushion portion (400) including a fixing plate (401), a first spring (402), a duct (403), and a pulling rope (404), wherein the fixing plate (401) is fixed to the rear portion of the lower surface of the first beam (100), the fixing plate (401) is fixed to one end of the first spring (402), the other end of the first spring (402) is fixed to one end of the pulling rope (404), the duct (403) is sheathed on the pulling rope (404), the duct (403) is fixed to the lower surface of the first beam (100), the other end of the pulling rope (404) is fixed to the lower end of the bag body (201), and the rear surface of the front portion of the bag body (201) is abutted against the front end surface of the top stick (300);

the supporting seat (540) is connected with the first beam (100) through a backrest rod (510), and the top of the supporting seat (540) is fixed with the lower end of the backrest rod (510);

the lower end of the backrest rod (510) is provided with a first permanent magnet, the upper surface of the second beam (106) is provided with a first electromagnet, the second beam (106) is positioned at the lower end of the second connecting rod (530), the lower end of the first connecting rod (520) is fixed with an output shaft of a second motor, the second motor is fixed with the first beam (100), and a power supply module of the first electromagnet and a power supply module of the second motor are connected with a user terminal through a communication module;

the top of the bag body (201) is fixed with the top of the connecting rope (203), the bottom of the connecting rope (203) is fixed with the bottom of the bag body (201), the connecting rope (203) is connected with the middle parts of the supporting rods (202), and the other end of the pull rope (404) is fixed with the lower end of the connecting rope (203).

2. The medical wheelchair of claim 1, wherein: the outer surface of the supporting stick (202) is provided with a traditional Chinese medicine layer (600).

3. The medical wheelchair of claim 1, wherein: the fixed part (700) comprises a second bayonet lock (710), a connecting rod (720) and a dovetail guide rail (730), wherein the dovetail guide rail (730) is arranged in the guide groove (110) of the first beam (100) along the length direction of the guide groove, the top rod (300) is provided with a dovetail groove along the length direction of the top rod, the dovetail groove is matched with the dovetail guide rail (730) and moves along the dovetail groove, one end of the connecting rod (720) is connected with the end face of the top rod (300), a plurality of clamping holes (721) are formed in the connecting rod (720) along the transverse direction, the first beam (100) is transversely provided with a guide hole (190), the guide hole is provided with a second bayonet lock (710), one end, far away from the first beam (100), of the second bayonet lock (710) is provided with a bayonet lock cap (712), and a second spring (712) is arranged between the second bayonet lock (710) and the guide hole (190).