CN106214365B - A kind of retractable seat mechanism and the vehicle of taking care of oneself equipped with the chair mechanism - Google Patents

Abstract

The present invention provides a kind of retractable seat mechanisms, the chair mechanism mainly includes seat cushion and slide way mechanism, two level telescopic rod, pulley assembly and the first driving mechanism, in addition the present invention also provides a kind of vehicles of taking care of oneself equipped with the retractable seat mechanism, this take care of oneself vehicle include chassis walking mechanism, the fixing bracket positioned at chassis walking mechanism forepart, the armrest mechanism positioned at fixing bracket top, aiding upright mechanism, positioned at the foot pedal of chassis walking mechanism on both sides of the middle and retractable seat mechanism, realize random switching of the user between stance and sitting posture；A kind of retractable seat mechanism of the present invention and the vehicle of taking care of oneself equipped with the chair mechanism have many advantages, such as ingenious in design, compact-sized, easy to operate and safety and stability.

Description

Telescopic seat mechanism and self-care car provided with the same

technical field

The invention relates to a retractable seat mechanism, in particular to a retractable seat mechanism and a self-care vehicle provided with the seat mechanism.

Background technique

Although existing standing rehabilitation wheelchairs can help patients with impaired lower limbs to stand up and take care of themselves, most of the users are paralyzed people, people with inconvenient legs and feet, or frail elderly people. The reason is that it is not suitable for standing for a long time. If the user drives the standing rehabilitation wheelchair outdoors and cannot find a place to sit down and rest, it will be detrimental to the health of the user. Although the standing rehabilitation wheelchair can allow the user to change from a standing posture to a sitting posture, if there is no support from other objects, the user's calf will still be supported by the wheelchair, and the center of gravity of the body will move forward. Less than a break.

In summary, users are not suitable for long-term use of standing rehabilitation wheelchairs to stand without sitting down and resting. Therefore, it is of great significance to allow the user to sit down and rest at any time on the standing rehabilitation wheelchair, free the calf without resorting to external help.

Contents of the invention

The object of the present invention is to provide a telescopic seat mechanism, which comprises: a seat cushion and a chute mechanism, the chute mechanism is located at the lower part of the seat cushion and is closely connected; a two-stage telescopic rod, one end and the bottom The fixing device is connected, and the other end is movably connected with the chute mechanism. The overall arrangement of the secondary telescopic rod is inclined; The first pulley and the second pulley at the top of the second-stage pole and the third pulley arranged at the bottom of the second-stage pole, one end is fixedly connected to the bottom of the first-stage pole of the two-stage telescopic pole and the other end After bypassing the first pulley, one end of the first sliding wire connected to one end of the seat cushion is fixed on the top of the first-stage rod, and the other end goes around the third pulley and the second pulley in turn. The second sliding line that is connected to the other end of the seat cushion; the first driving mechanism is located inside the second-stage telescopic rod, and the fixed end is connected with the bottom of the first-stage rod, and the moving end is connected with the bottom of the first-stage rod. The tops of the second-stage rods are connected.

Preferably, it further includes a first blocking block arranged inside the top of the first-stage rod and a second blocking block arranged outside the bottom of the second-stage rod.

Preferably, it further includes a first sliding wire tube and a second sliding wire tube arranged on the side of the second pole and arranged side by side.

Preferably, it also includes baffles located on both sides of the secondary telescopic rod.

A self-care car with the above-mentioned telescopic seat structure, the self-care car includes: a chassis running mechanism, a fixed bracket located at the front of the chassis running mechanism, an armrest mechanism whose bottom is fixed on the upper part of the fixed bracket, an auxiliary standing Mechanism, the pedals located on both sides of the middle part of the chassis traveling mechanism and the telescopic seat mechanism located at the middle and rear of the chassis traveling mechanism.

Preferably, the chassis running mechanism includes a bottom plate, a front wheel assembly and a rear wheel assembly respectively located at the front, rear and bottom of the bottom plate.

Preferably, the auxiliary standing mechanism includes a waist support mechanism, a hip support mechanism and a knee support mechanism.

Preferably, the waist and abdomen support mechanism includes a telescopic rod with one end movably connected to the upper part of the fixed bracket and the other end connected to the abdomen support device, waist pads connected to both sides of the abdomen support device, one end connected to the chassis The running mechanism is movably connected and the other end is movably connected with the second drive mechanism at the middle and lower part of the telescopic rod.

Preferably, the buttock support mechanism includes two third drive mechanisms located on both sides of the upper part of the fixed bracket, one end of which is respectively connected to the two third drive mechanisms, and the other end passes through the two third drive mechanisms located on both sides of the abdomen support device. Two binding straps connected to both sides of the buttock support pad behind the hook on the side and two connecting straps connected to both sides of the hip support pad at one end and connected to the knee support mechanism at the other end.

Preferably, it also includes a second driving mechanism controller located at the end of the armrest mechanism and an integrated controller located at the upper part of the abdominal support device.

To sum up, the telescopic seat mechanism of the present invention and the self-care vehicle equipped with the seat mechanism have the advantages of ingenious design, compact structure, simple operation, safety and stability, and the like.

It should be understood that both the foregoing general description and the following detailed description are exemplary illustrations and explanations, and should not be used as limitations on the claimed content of the present invention.

Description of drawings

With reference to the accompanying drawings, more objects, functions and advantages of the present invention will be clarified through the following description of the embodiments of the present invention, wherein:

Fig. 1 schematically shows a schematic diagram of the planar structure of the retractable seat mechanism of the present invention;

Fig. 2 schematically shows the three-dimensional structure schematic diagram when the retractable seat mechanism of the present invention is extended;

Fig. 3 schematically shows a schematic structural view of the retractable seat mechanism of the present invention provided with a baffle;

Fig. 4 schematically shows a schematic diagram of a user standing on the self-care car of the present invention;

Fig. 5 schematically shows a schematic diagram of a user sitting on the self-care vehicle of the present invention.

Detailed ways

The objects and functions of the present invention and methods for achieving the objects and functions will be clarified by referring to the exemplary embodiments. However, the present invention is not limited to the exemplary embodiments disclosed below; it can be implemented in various forms. The essence of the description is only to help those skilled in the relevant art comprehensively understand the specific details of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

1 to 3 show various structural diagrams of a telescopic seat mechanism 8 of the present invention, through which the user can maintain a sitting posture and obtain a certain rest. The retractable seat mechanism 8 mainly includes a seat cushion 803 , a chute mechanism 806 , a secondary telescopic rod, a pulley assembly and a first driving mechanism 804 .

The seat cushion 803 is closely connected with the chute mechanism 806 which is located at the lower part of the seat cushion 803 .

The two-stage telescopic rod (including the first-stage telescopic rod 801 and the second-stage telescopic rod 802), one end is connected with the bottom fixing device 805, and the other end is movably connected with the chute mechanism 806, and the two-stage telescopic rod The whole is inclined.

The pulley assembly is located on the side of the second-stage rod 802 of the two-stage telescopic rod, including a first pulley 807 and a second pulley 808 arranged on the top of the second-stage rod 802 and a second pulley 808 arranged on the second-stage rod. The third pulley 809 at the bottom of the member 802, one end is fixedly connected to the bottom of the first-stage rod 801 of the second-stage telescopic rod, and the other end is connected to the first end of the seat cushion 803 after bypassing the first pulley 807 A sliding wire 810, one end of which is fixed on the top of the first stage rod 801 and the other end sequentially bypasses the third pulley 809 and the second pulley 808 and is connected to the other end of the seat cushion 803 Two slip line 811. The first sliding wire 810 and the second sliding wire 811 are steel wire ropes with a fixed length.

The first driving mechanism 804 is located inside the second-stage telescopic rod, and its fixed end is connected to the bottom of the first-stage rod 801 , and its moving end is connected to the top of the second-stage rod 802 .

When the retractable seat mechanism of the present invention is stretched, the first driving mechanism 804 drives the second-stage rod 802 to extend upward along its inclined direction and drives the first pulley 807 to move upward and shorten the first pulley 807 and the first sliding line 810 The distance between the ends of the seat cushion 803 is used to drive the seat cushion 803 to slide in the chute mechanism 806 by the tension force of the first sliding wire 810 , and then the seat cushion 803 is fully unfolded.

When the retractable seat mechanism of the present invention shrinks, the first driving mechanism 804 drives the second-stage rod 802 to shrink up and down along its inclination direction and drives the second pulley 808 and the third pulley 809 to move downward and shorten the second pulley 808 and the distance between the third pulley 809 and the second sliding wire 811 at the end of the seat cushion 803, so that the tension force of the second sliding wire 811 is used to drive the seat cushion 803 to slide in the chute mechanism 806, thereby realizing the first While the driving mechanism 804 is shrinking, the seat cushion 803 is also shrinking until the first driving mechanism 804 and the seat cushion 803 are simultaneously contracted.

The first drive mechanism is a linear drive and preferably uses an electric push rod or a hydraulic push rod, so as to further reduce the volume and space occupied by the retractable seat mechanism of the present invention.

Preferably, a first blocking block 812 is provided on the inside of the top of the first-stage rod 801 , and a second blocking block 813 is provided on the outside of the bottom of the second-stage rod 802 . When the second-stage rod 802 is extended to the limit position, the first stopper 812 and the second stopper 813 contact, thereby preventing the second-stage rod 802 from continuing to extend, preventing the second-stage rod 802 from the first stage Rod 801 falls off. At the same time, the third pulley 809 can be arranged on the second blocking block 813 and the fixed end of the second sliding wire 811 can be fixed on the second blocking block 813, so that the structure of the telescopic seat mechanism 8 of the present invention is more compact and reliable.

More preferably, the first sliding wire tube 814 and the second sliding wire tube 815 are arranged side by side on the side of the second pole 802, and the first sliding wire 810 and the second sliding wire 811 pass through the first sliding wire tube respectively. 814 and the second sliding wire pipe 815 mainly serve to provide guidance for the first sliding wire 810 and the second sliding wire 811 .

In practical applications, baffles 816 can also be arranged on both sides of the secondary telescopic rods (including the first-stage telescopic rods 801 and the second-stage telescopic rods 802 ), and the baffles 816 are on the one hand for the secondary telescopic rods. The rod plays the role of support and fixation, and on the other hand is also a safety measure for protecting users from accidental injuries. In addition, after the retractable seat mechanism 8 of the present invention is fully contracted, the seat cushion 803 should be located within the area occupied by the two baffles 816 or directly inside the two baffles 816 . It has the advantages of ingenious design, compact structure, small space occupation, simple operation, safety and stability.

The telescopic seat mechanism 8 of the present invention skillfully realizes the stretching and contracting functions of the seat based on the two-stage telescopic rod and the pulley assembly, and has many advantages such as small footprint, simple and compact structure, and easy portability in practical applications.

FIG. 4 and FIG. 5 respectively show a schematic diagram of a standing posture and a sitting posture of a self-care vehicle 100 provided with the retractable seat mechanism 8 . The self-care car 100 of the present invention comprises: a chassis walking mechanism 1, a fixed support 2, a handrail mechanism 3, an auxiliary standing mechanism (including a waist and abdomen support mechanism 4, a buttock support mechanism 5 and a knee support mechanism 6), a pedal 7 and a The telescopic seat mechanism 8 at the rear in the chassis traveling mechanism 1 . The self-care vehicle 100 of the present invention is mainly used by handicapped persons, for example, persons with leg disabilities or lower body paralysis.

The chassis running mechanism 1 is located at the bottom of the self-care vehicle 100, and is mainly used to carry users and drive the self-care vehicle 100 forward. The self-care vehicle 100 includes a base plate 11, a front wheel assembly 12, and a rear wheel assembly 13, wherein the front wheel assembly 12 is a driving wheel, and the rear wheel assembly 13 is a driven wheel and preferably adopts a universal wheel structure.

A front wheel assembly 12 and a rear wheel assembly 13 are respectively arranged at the front and bottom of the bottom plate 11, wherein the front wheel assembly 12 is a driving wheel, and the rear wheel assembly 13 is a driven wheel and preferably uses a universal wheel assembly. The front wheel assembly 12 is also provided with a shock absorber arm, a shock absorber groove and a shock damper. Similarly, the rear wheel assembly 13 is also provided with a corresponding shock absorber, thereby effectively reducing the shock generated by the self-care vehicle 100 during driving. The vibration intensity ensures the safety of the user and increases the driving comfort of the user.

Pedal 7 is positioned at the both sides of the middle part of base plate 11, and the front and back of pedal 7 is all provided with annular blocking sheet, prevents the both feet of user from sliding greatly, has played the purpose of fixing user's both feet.

The fixed support 2 is located above the front part of the base plate 11 and is a steel frame structure, and its bottom is fixedly connected to the base plate 11, and mainly plays the role of fixing and movable connection.

The armrest mechanism 3 is located directly above the fixed bracket 2, as shown in Figure 2, its bottom is fixedly connected to the upper part of the fixed bracket 2 and arranged vertically upwards, the main part of the armrest mechanism 3 is a secondary rod or multi-stage rod structure, which can be freely Telescopic and self-locking, it can be adjusted according to the user's height when in use.

The waist and abdomen support mechanism 4 is used to support the user's waist and abdomen, prevent the user from falling forward or backward, and help the user stand stably and achieve long-term standing. The waist and abdomen support mechanism 4 mainly includes a telescopic rod 41 that is movably connected to the upper part of the fixed bracket 2 and the other end is connected to the abdomen support device 43, a waist support pad 44 connected to both sides of the abdomen support device 43, and one end is movable with the chassis walking mechanism 1. It is connected and the other end is movably connected to the second drive mechanism 42 with the middle and lower part of the telescopic rod 41 .

An integrated controller 45 for controlling the first driving mechanism 812 , the two third driving mechanisms 53 and the front wheel assembly 12 is also provided on the upper part of the abdominal supporting device 43 .

The buttock support mechanism 5 is used to support the user's buttocks to prevent the user from standing unsteadily. The buttock support mechanism 5 mainly includes two third drive mechanisms 53 located on both sides of the upper part of the fixed bracket 2, one end of which is respectively connected to the two third drive mechanisms 53, and the other end passes through the hooks 55 located on both sides of the abdomen support device 43 respectively. Two binding straps 51 connected to both sides of the buttock support pad 52 and two connecting straps 54 connected to both sides of the hip support pad 52 and the other end to the knee support mechanism 6 .

The knee support mechanism 6 is used to prevent the user's knee from bending and assist the user's calf to stand stably. The knee support mechanism 6 is located on the fixed bracket and is movably connected with it, thereby realizing synchronous rotation when the user's calf bends, and improving the comfort of the calf support.

Preferably, the structural design of the abdominal support device 43, the waist support pad 44, the hip support pad 52, the knee support mechanism 6 and the pedal 7 should conform to ergonomics and the parts in contact with the user's body are all made of soft shock-absorbing materials, Thereby greatly improving the comfort of the user's abdomen, waist, buttocks, soles and calf or knee support.

When the user needs to switch from a standing position to a sitting position, first operate the integrated controller 45 to control the first driving mechanism 804 to make the telescopic seat mechanism 8 start to stretch, and then control the second driving mechanism 42 and the third driving mechanism 53 to make the waist and abdomen stretch. The support mechanism 4 and the buttock support mechanism 5 are lowered slowly until the user's buttocks sit on the seat cushion 803 . The extension length of the telescopic seat mechanism 8 of the present invention is controllable and has a self-locking and fixing function, so people of different heights can adjust the height of the seat cushion 803 according to their own heights.

Conversely, when the user needs to switch from a sitting position to a standing position, the second drive mechanism 42 and the third drive mechanism 53 should be controlled to slowly raise the waist and abdomen support mechanism 4 and the hip support mechanism 5 until the user is in a standing state. , and then operate the integrated controller 45 to control the first driving mechanism 812 so that the retractable seat mechanism 8 begins to shrink until the stretching is completed.

In summary, the user can easily switch between sitting and standing postures by driving the self-care vehicle 100 of the present invention, and the user can complete daily activities such as cooking, dining, and going to the toilet on the scooter 100, further realizing Take care of yourself. The user can repeatedly practice sitting down and standing on the self-care car 100 by means of the auxiliary standing mechanism and the seat mechanism, and can do simple rehabilitation squat training for the legs. The user can sit down and rest anytime and anywhere according to his own needs. When the user drives the self-care car 100 outdoors, the importance of the retractable seat mechanism 8 will be fully reflected. Moreover, whether the user sits down to eat or work, he does not need to disengage from the self-care car, and does not need to re-wear the buttock support pad of the self-care car when he sits down, which greatly increases the convenience of using the self-care car. convenience. The user can choose to drive the self-care vehicle while standing, or choose to drive the self-care vehicle while sitting down. The users can use it alternately when sitting and standing, so that the blood can be circulated, which is more beneficial to the user's body. After the seat is retracted, it takes up little space and will not affect the use of the self-care car. Finally, the present invention also has the advantages of ingenious design, compact structure, simple operation, safety and stability.

The figures are merely schematic and not drawn to scale. While the invention has been described in connection with preferred embodiments, it should be understood that the scope of the invention is not limited to the embodiments described herein.

Other embodiments of the invention will be apparent to and understood by those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The description and examples are considered exemplary only, with the true scope and spirit of the invention defined by the claims.

Claims (10)

1. a kind of retractable seat mechanism, the chair mechanism include：

Seat cushion and slide way mechanism, the slide way mechanism are located at the lower part of the seat cushion and closely coupled；

Two level telescopic rod, one end is connected with base fixture, the other end is then flexibly connected with the slide way mechanism, the two level The whole inclined arrangement of telescopic rod；

Pulley assembly, positioned at the second level rod piece side of the two level telescopic rod, including being arranged at the top of the second level rod piece First pulley and second pulley and be arranged on the 3rd pulley of the second level rod piece bottom, one end be fixedly connected on it is described The first order rod piece bottom of two level telescopic rod and the other end are around the to be connected after the first pulley with the seat cushion one end One slip, one end are fixed at the top of the first order rod piece and the other end bypasses the 3rd pulley and the second pulley successively The second slip being connected afterwards with the other end of the seat cushion；

First driving mechanism, positioned at the inside of the two level telescopic rod, and fixing end is connected with the first order rod piece bottom, moves Top of the moved end then with the second level rod piece is connected.

2. chair mechanism according to claim 1, it is characterised in that：Further include the top for being arranged on the first order rod piece First stopper of inside and be arranged on the second level rod piece bottom outside the second stopper.

3. chair mechanism according to claim 2, it is characterised in that：Further include be arranged on second level rod piece side and side by side The the first slip pipe and the second slip pipe of arrangement.

4. chair mechanism according to claim 3, it is characterised in that：Further include the gear positioned at the two level telescopic rod both sides Plate.

5. a kind of vehicle of taking care of oneself equipped with retractable seat mechanism described in any one of claims 1 to 4, the vehicle bag of taking care of oneself It includes：Chassis walking mechanism, the fixing bracket positioned at the chassis walking mechanism forepart, bottom are fixed on the fixing bracket top Armrest mechanism, aiding upright mechanism, positioned at the foot pedal of the chassis walking mechanism on both sides of the middle and positioned at the chassis The retractable seat mechanism of walking mechanism middle and back.

6. vehicle according to claim 5 of taking care of oneself, it is characterised in that：The chassis walking mechanism includes bottom plate, difference The front component and wheel assembly of lower section before and after the bottom plate.

7. vehicle according to claim 6 of taking care of oneself, it is characterised in that：The aiding upright mechanism includes waist abdomen and supports machine Structure, buttocks supporting mechanism and knee supporting mechanism.

8. vehicle according to claim 7 of taking care of oneself, it is characterised in that：The waist abdomen supporting mechanism include one end with it is described The telescopic rod and the abdominal support device both sides that fixing bracket top movable connects and the other end is connected with abdominal support device Connected Waist protection pad, one end is flexibly connected with the chassis walking mechanism and the other end is flexibly connected with the telescopic rod middle and lower part The second driving mechanism.

9. vehicle according to claim 8 of taking care of oneself, it is characterised in that：The buttocks supporting mechanism includes being located at described solid Two the 3rd driving mechanisms, one end of fixed rack top both sides are connected respectively with described two 3rd driving mechanisms and the other end point Two bundling belts being connected after the hook of the abdominal support device both sides with the buttocks supporting pad both sides are not placed through And two connect bands that one end is connected with the buttocks supporting mechanism both sides and the other end is connected with the knee supporting mechanism.

10. vehicle according to claim 9 of taking care of oneself, it is characterised in that：It further includes positioned at the armrest mechanism end Second driving mechanisms control device and the integrated manipulator positioned at the abdominal support device top.