Rehabilitation wheelchair capable of changing multiple postures

Abstract

The utility model discloses a rehabilitation wheelchair capable of changing multiple postures, and particularly relates to the technical field of wheelchairs. The seat plate frame set comprises a seat plate frame, a fixed seat plate and a rotary supporting seat plate, the fixed seat plate and the rotary supporting seat plate are arranged above the seat plate frame, the seat plate frame is hinged to the supporting frame, and a rectangular hole is formed in the middle of the fixed seat plate and rotationally connected with the rotary supporting seat plate. The backrest frame set comprises a backrest frame, a waist support arranged above the backrest frame and a back support assembly, the middle of the waist support is hinged to the backrest frame, the bottom of the waist support is hinged to the seat plate frame, and the back support assembly is hinged to the backrest frame; the leg plate frame group comprises a leg plate frame and a knee propping device; the pedal plate group comprises a pedal plate and a gait training device; the posture adjusting assembly can enable the wheelchair to be switched among a sitting posture, a prone posture and a standing posture. According to the utility model, a user can flexibly switch among a sitting posture, a prone posture and a standing posture, so that different use requirements of the user are met; in addition, in the posture changing process, the body of the user can be supported, and the safety of the user is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wheelchair technical field especially a kind of rehabilitation wheelchair of multi-posture transformation. BACKGROUND

[0002] In daily life, the population with difficulty in movement faces many challenges, and as an important travel aid for them, the diversity and adaptability of the function of wheelchair are crucial. Traditional wheelchair can only meet the basic demand of walking, and cannot realize the conversion between sitting posture, lying posture and standing posture. Even if part of the wheelchair can realize the conversion between postures, it lacks effective support and fixation for users in the changing process, does not comply with the principle of ergonomics, and ordinary wheelchair cannot carry out leg rehabilitation training. SUMMARY

[0003] The utility model aims at providing a kind of rehabilitation wheelchair of multi-posture transformation to solve the problems existing in the prior art, can make user flexible conversion between sitting posture, lying posture and standing posture, meet the different use needs of user;And in the process of posture change, the body of user can be supported, guarantee the safety of user.

[0004] To achieve the above object, the utility model provides the following scheme:

[0005] The utility model provides a kind of rehabilitation wheelchair of multi-posture transformation, comprising:

[0006] Support frame, the support frame bottom is provided with walking mechanism;

[0007] Seat plate frame group, including seat plate frame, fixed seat plate and rotating support seat plate, the seat plate frame is set in the upper portion of the support frame, the seat plate frame is hinged with the support frame, the fixed seat plate is fixed in the upper portion of the seat plate frame, rectangular hole is formed in the middle of the fixed seat plate, the rotating support seat plate is placed in the rectangular hole, and is rotationally connected with the rectangular hole;

[0008] Backrest frame group, including backrest frame, waist support and back support assembly, the bottom of the backrest frame is hinged with the seat plate frame, the waist support and the back support assembly are placed in the upper portion of the backrest frame, the back surface middle portion of the waist support is hinged with the backrest frame, the back surface bottom of the waist support is hinged with the seat plate frame, the back support assembly is hinged with the middle portion of the backrest frame;

[0009] Leg plate frame group, including leg plate frame and top knee device, the top of the leg plate frame is hinged with the support frame and the seat plate frame simultaneously, the top knee device is connected with the leg plate frame;

[0010] Footboard group, including footboard and gait training device installed on the footboard, the footboard is fixedly installed on the support frame;

[0011] The armrest frame comprises an armrest crossbar and armrest rods fixedly connected with both ends of the armrest crossbar, the armrest crossbar is placed behind the backrest frame, the armrest rods are placed on both sides of the backrest frame, the armrest rods are hingedly connected with one end of armrest support rods, and the other end of the armrest support rods is hingedly connected with the seat plate frame.

[0012] The posture adjusting assembly comprises a seat plate electric push rod, a leg plate electric push rod and a three-link assembly, one end of the seat plate electric push rod is hingedly connected with the support frame, and the other end is hingedly connected with the seat plate frame; one end of the leg plate electric push rod is hingedly connected with the support frame, and the other end is hingedly connected with the leg plate frame; the three-link assembly is used for converting the backrest frame between a vertical posture and a horizontal posture, the three-link assembly comprises a first link, a second link and a third link, the top of the first link is hingedly connected with the bottom of the second link and the bottom of the third link, the bottom of the first link is hingedly connected with the support frame, the top of the second link is hingedly connected with the back of the backrest frame, and the top of the third link is hingedly connected with the middle of the armrest crossbar.

[0013] Preferably, the seat plate frame comprises a seat plate frame body and seat plate frame links symmetrically arranged on both sides of the bottom surface of the seat plate frame body, the backrest frame comprises a backrest frame body and backrest frame links symmetrically arranged on both sides of the back of the backrest frame body, the bottom of the backrest frame link is hingedly connected with one end of the seat plate frame link, the other end of the seat plate frame link is hingedly connected with the leg plate frame, and the seat plate frame body, the backrest frame link, the seat plate frame link and the leg plate frame constitute a parallelogram mechanism, one end of the armrest support rod is hingedly connected with the middle of the armrest rod, and the other end of the armrest support rod is hingedly connected with the middle of the seat plate frame link.

[0014] Preferably, the support frame comprises a support vertical rod, the top end of the support vertical rod is hingedly connected with one end of a rotating support seat plate link, and the other end of the rotating support seat plate link is hingedly connected with one end of the rotating support seat plate close to the backrest frame.

[0015] Preferably, the armrest frame further comprises an armrest and a grip rod, the armrest is fixedly connected with the armrest rod, and the grip rod is fixedly arranged on one end of the armrest close to the leg plate frame.

[0016] Preferably, the backrest frame group further comprises armpit supports, the armpit supports are symmetrically arranged on both sides of the backrest frame and are hingedly connected with the backrest frame.

[0017] Preferably, the backrest frame group further comprises a headrest, a headrest slide rail rod and a headrest link, the headrest is hingedly connected with the headrest slide rail rod, the headrest slide rail rod is provided with a slide rail, one end of the headrest link is slidingly connected with the slide rail, and the other end is hingedly connected with the back of the backrest frame.

[0018] Preferably, the back support assembly comprises a back support, an X-shaped fixing support and a back support sliding rail, the back of the back support is hinged to four ends of the X-shaped fixing support, the middle part of the X-shaped fixing support is fixedly connected with the back support sliding rail, the backrest frame is provided with a sliding block, and the sliding block is in sliding connection with the back support sliding rail.

[0019] Preferably, the top knee device comprises two symmetrically arranged L-shaped rods and two top knee pads, the top knee pads are hinged to the L-shaped rods, one end of each of the L-shaped rods is hinged to one side of the leg plate frame, and the other end is detachably connected with the other L-shaped rod.

[0020] Preferably, two symmetric grooves are formed in the foot plate, the gait training device comprises two foot supports and two crankshafts, the foot supports are in sliding connection with the grooves, the foot supports are provided with two through holes, one end of each of the crankshafts is rotatably arranged at one end of the foot plate, and the other end of the crankshafts is in turn arranged through the through holes of the foot supports and rotatably connected with the other end of the foot plate.

[0021] Preferably, the walking mechanism comprises two omni-directional wheels, two rear wheels and a rear wheel shaft, the two omni-directional wheels are symmetrically arranged on the two sides of the front end of the support frame, the two rear wheels are symmetrically arranged on the two sides of the rear end of the support frame, the two rear wheels are connected through the rear wheel shaft, a first sprocket is fixedly connected on one of the crankshafts, a second sprocket is fixedly connected on the rear wheel shaft, and the first sprocket and the second sprocket are connected through a chain transmission.

[0022] The utility model discloses relative to prior art has obtained following technical effect:

[0023] The utility model provides a rehabilitation wheelchair of many postures change, wheelchair frame, seat plate frame, backrest frame, leg plate frame, handrail frame and many groups connecting rods pass through the posture adjustment component of adjusting, make seat plate frame, backrest frame and leg plate frame change in sitting posture, lying posture and standing posture, satisfy the different use demand of user, and in the change process, fixed seat plate, waist support, back support assembly, leg plate frame and handrail frame can linkage change, make whole change process more conform to the ergonomics principle, can support different postures, in addition be equipped with top knee device on leg plate frame, be equipped with gait training device on foot plate, and top knee device, rotating support seat plate provide additional support effect for patient in standing process, let patient can keep standing posture more easily, simultaneously, patient can use gait training device and walk training, and have the positive effect to the rehabilitation of patient. DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0025] Figure 1 It is a whole front structure schematic view of the multi-posture conversion rehabilitation wheelchair of the embodiment.

[0026] Figure 2 It is a whole back structure schematic view of the multi-posture conversion rehabilitation wheelchair of the embodiment.

[0027] Figure 3 It is a whole side structure schematic view of the multi-posture conversion rehabilitation wheelchair of the embodiment.

[0028] Figure 4 It is a whole bottom structure schematic view of the multi-posture conversion rehabilitation wheelchair of the embodiment.

[0029] Figure 5 It is Figure 1 An enlarged view of A in the figure.

[0030] Figure 6 It is Figure 4 An enlarged view of B in the figure.

[0031] In the figure: 1, headrest; 2, back support; 3, armrest; 4, handlebar; 5, fixed seat plate; 6, leg support plate; 7, foot plate; 8, omni-directional wheel; 9, armpit support; 10, right-angle connecting piece; 11, foot support; 12, armrest support rod; 13, armrest rod; 14, backrest frame; 15, backrest frame connecting rod; 16, armrest cross rod; 17, second connecting rod; 18, third connecting rod; 19, L-shaped hinge device; 20, seat plate frame; 21, rotary support seat plate; 22, first connecting rod; 23, rotary support seat plate connecting rod; 24, cross beam; 25, seat plate electric push rod; 26, support vertical rod; 27, leg plate electric push rod; 28, leg plate frame; 29, seat plate frame connecting rod; 30, armrest connecting rod; 31, top knee pad plate; 32, L-shaped support rod; 33, headrest slide rail rod; 34, headrest connecting rod; 35, rear wheel; 36, rear wheel shaft; 37, crankshaft; 38, first sprocket; 39, chain; 40, screw telescopic rod; 41, X-shaped fixed support; 42, waist support; 43, support frame. DETAILED DESCRIPTION

[0032] Clearly and completely describe the technical scheme in the embodiments of the utility model in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only some of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of the utility model protection.

[0033] The utility model aims at providing a posture conversion rehabilitation wheelchair to solve the problems of the prior art, can make the user flexibly convert among sitting posture, lying posture and standing posture, meet the different use demand of user, and can support the body of user in the posture change process, guarantee the safety of user.

[0034] In order to make the above purpose, features and advantages of the utility model more apparent and easy to understand, the utility model is further described in detail in combination with the drawings and specific embodiments.

[0035] The utility model provides a kind of multi-posture conversion rehabilitation wheelchair, such as Figures 1-4As shown, it comprises: support frame 43, the bottom of support frame 43 is provided with a walking mechanism, support frame 43 is composed of an aluminum profile basic frame for providing support for the rehabilitation wheelchair; seat frame group, including seat frame 20, fixed seat plate 5 and rotating support seat plate 21, seat frame 20 is arranged on the upper part of support frame 43, seat frame 20 is hinged with support frame 43, facilitating the angle adjustment of seat frame 20, fixed seat plate 5 is fixed on the upper part of seat frame 20, which can improve the comfort of users, a rectangular hole is formed in the middle of fixed seat plate 5, rotating support seat plate 21 is arranged in the rectangular hole and is rotatably connected with the rectangular hole; backrest frame group, including backrest frame 14, waist support 42 and back support 2 components, the bottom of backrest frame 14 is hinged with seat frame 20, facilitating the angle adjustment of seat frame 20, waist support 42 and back support 2 components are arranged on the upper part of backrest frame 14, the back surface of waist support 42 is hinged with one end of threaded telescopic rod 40, the other end of threaded telescopic rod 40 is hinged with backrest frame 14, the angle of waist support 42 can be adjusted when the posture changes, and the length of threaded telescopic rod 40 can be adjusted to independently adjust the angle of waist support 42, ensuring the comfort of different users; the bottom of waist support 42 is hinged with seat frame 20, and the back support 2 component is hinged with the middle part of backrest frame 14; leg plate frame group, including leg plate frame 28 and top knee device, the top of leg plate frame 28 is hinged with support frame 43 and seat frame 20 at the same time, and the top knee device is connected with leg plate frame 28; foot plate group, including foot plate 7 and gait training device installed on foot plate 7, foot plate 7 is fixedly installed on support frame 43; armrest frame, armrest frame comprises armrest cross rod 16 and armrest rod 13 fixedly connected with both ends of armrest cross rod 16, left and right armrest frames are respectively connected with both ends of armrest cross rod 16 through right angle connecting pieces 10, armrest cross rod 16 is arranged behind backrest frame 14, armrest rod 13 is arranged on both sides of backrest frame 14, armrest rod 13 is hinged with one end of armrest support rod 12, the other end of armrest support rod 12 is hinged with seat frame 20, the middle part of the front side surface of armrest support rod 12 is hinged with one end of armrest connecting rod 30, the other end of armrest connecting rod 30 is hinged with the rear side surface of leg plate frame 28; posture adjusting assembly, including seat plate electric push rod 25, leg plate electric push rod 27 and three-link assembly, one end of seat plate electric push rod 25 is hinged with support frame 43, and the other end is hinged with seat frame 20; one end of leg plate electric push rod 27 is hinged with support frame 43, and the other end is hinged with leg plate frame 28; three-link assembly is used for converting backrest frame 14 between vertical posture and horizontal posture, three-link assembly comprises first link 22, second link 17 and third link 18, the top of first link 22 is hinged with the bottom of second link 17 and the bottom of third link 18 through L-shaped hinge device 19 at the same time, the bottom of first link 22 is hinged with the middle part of cross beam 24 of support frame 43, the top of second link 17 is hinged with the back surface of backrest frame 14, and the top of third link 18 is hinged with the middle part of armrest cross rod 16.The support frame 43, the seat plate frame 20, the backrest frame 14, the leg plate frame 28, the armrest frame and the plurality of sets of connecting rods are connected through the posture adjustment assembly, so that the seat plate frame 20, the backrest frame 14 and the leg plate frame 28 are changed among the sitting posture, the lying posture and the standing posture, and different use requirements of users are met; and in the changing process, the fixed seat plate 5, the waist support 42, the back support assembly, the leg plate frame 28 and the armrest frame can be changed in linkage, so that the whole changing process is more in line with the ergonomic principle and can support different postures; in addition, the knee lifting device is arranged on the leg plate frame 28, the rotating support seat plate 21 is arranged in the middle of the fixed seat plate 5, and the gait training device is arranged on the foot pedal 7; in the standing process, the knee lifting device and the rotating support seat plate 21 provide additional support for the patient, so that the patient can more easily maintain the standing posture, and at the same time, the patient can use the gait training device to walk and train, which plays a positive role in the rehabilitation of the patient. Preferably, the number of the seat plate electric push rods 25 is two, and the two seat plate electric push rods 25 are symmetrically distributed on the left and right sides of the seat plate frame 20, so that the stability of the seat plate frame 20 can be improved.

[0036] Further preferably in the embodiment of the utility model, the seat plate frame 20 comprises a seat plate frame body and a seat plate frame connecting rod 29 symmetrically arranged on the bottom surface of the seat plate frame body, and the backrest frame 14 comprises a backrest frame body and a backrest frame connecting rod 15 symmetrically mounted on the back surface of the backrest frame body, the bottom of the backrest frame connecting rod 15 is hinged to one end of the seat plate frame connecting rod 29, the other end of the seat plate frame connecting rod 29 is hinged to the leg plate frame 28, and the seat plate frame body, the backrest frame connecting rod 15, the seat plate frame connecting rod 29 and the leg plate frame 28 form a parallelogram mechanism, one end of the armrest support rod 12 is hinged to the middle of the armrest rod 13, and the other end of the armrest support rod 12 is hinged to the middle of the seat plate frame connecting rod 29.

[0037] Further preferably in the embodiment of the utility model, the support frame 43 comprises a support vertical rod 26, the top end of the support vertical rod 26 is hinged to one end of the rotating support seat plate connecting rod 23, and the other end of the rotating support seat plate connecting rod 23 is hinged to one end of the rotating support seat plate 21 close to the backrest frame 14.

[0038] Further preferably in the embodiment of the utility model, the armrest frame further comprises an armrest 3 and a handle 4, the armrest 3 is fixedly connected with the armrest rod 13, and the handle 4 is fixedly mounted on one end of the armrest 3 close to the leg plate frame 28.

[0039] Further preferably in the embodiment of the utility model, the backrest frame group further comprises an armpit support 9, the armpit support 9 is symmetrically arranged on the two sides of the backrest frame 14 and is hinged to the backrest frame 14, and the armpit support 9 can provide additional support for the underarm of the user when standing.

[0040] Further preferably in the embodiment of the utility model, the backrest frame group further comprises a headrest 1, a headrest sliding rail rod 33 and a headrest connecting rod 34, the headrest 1 is hinged with the headrest sliding rail rod 33, the headrest sliding rail rod 33 is provided with a sliding rail, one end of the headrest connecting rod 34 is slidingly connected with the sliding rail, and the other end is hinged with the top end of the back of the backrest frame 14, so that the headrest 1 can realize forward and backward position adjustment and up and down angle adjustment.

[0041] Further preferably in the embodiment of the utility model, the back support assembly comprises a back support 2, an X-shaped fixed support 41 and a back support sliding rail, the back of the back support 2 is hinged with the four end portions of the X-shaped fixed support 41, the middle portion of the X-shaped fixed support 41 is fixedly connected with the back support 2 sliding rail, the backrest frame 14 is provided with a sliding block, and the sliding block is slidingly connected with the back support sliding rail. The sliding block in the middle portion of the backrest frame 14 is connected with the X-shaped fixed support 41 through the back support sliding rail, and the X-shaped fixed support 41 is connected with the back support 2 through the hinge device, so that the back support 2 can realize forward and backward movement and angle adjustment.

[0042] Further preferably in the embodiment of the utility model, as shown in Figure 5 In order to provide support for the knee of the user when standing, the knee lifting device comprises two symmetrically arranged L-shaped support rods 32 and two knee lifting gaskets 31, the knee lifting gasket 31 is hinged with the L-shaped support rod 32, one end of the two L-shaped support rods 32 is respectively hinged with one side of the leg plate frame 28, and the other end is detachably connected with the other L-shaped support rod 32. When the rehabilitation wheelchair is used, the two L-shaped support rods 32 are first disassembled and opened outward, so that the patient sits on the rehabilitation wheelchair, then the L-shaped support rod 32 is rotated inward, and the two L-shaped support rods 32 are connected, and the knee lifting gasket 31 can provide support for the knee of the patient.

[0043] Further preferably in the embodiment of the utility model, two symmetrical grooves are formed in the footboard 7, the gait training device comprises two foot supports 11 and two crankshafts 37, the foot support 11 is slidingly connected with the groove, the foot support 11 is provided with two through holes, one end of each crankshaft 37 is rotatably arranged at one end of the footboard 7, and the other end of the crankshaft 37 is sequentially threaded through the through holes in the two foot supports 11 and rotatably connected with the other end of the footboard 7.

[0044] Further preferably in the embodiment of the utility model, the walking mechanism comprises two omni-directional wheels 8, two rear wheels 35 and a rear wheel shaft 36, the two omni-directional wheels 8 are symmetrically arranged on the two sides of the front end of the support frame 43, the two rear wheels 35 are symmetrically arranged on the two sides of the rear end of the support frame 43, and the two rear wheels 35 are connected through the rear wheel shaft 36, as shown in Figure 6As shown, one end of the crankshaft 37 is fixedly connected with the first sprocket 38, and the rear wheel shaft 36 is fixedly connected with the second sprocket, the first sprocket 38 and the second sprocket are drivingly connected through the chain 39, the crankshaft 37 rotates to drive the rear wheel shaft 36 to rotate through the chain 39, and then drive the rear wheel 35 to rotate, so as to realize the movement of the multi-posture conversion rehabilitation wheelchair. The two omni-directional wheels 8 can not only make the wheelchair have good steering ability, but also improve the practicability of the wheelchair in narrow space. When the patient stands, the feet can be stepped on the foot support 11 to perform gait training, at this time the wheelchair can also be driven to move forward, which can provide a positive effect on the patient's rehabilitation.

[0045] When the user needs to use the rehabilitation wheelchair while sitting, the seat plate electric push rod 25 is used to drive the seat plate frame 20 to make the seat plate and the rotating support seat plate 21 horizontal, the leg plate electric push rod 27 is used to drive the leg plate frame 28 to make the leg plate frame 28 and the backrest frame 14 vertical or slightly inclined, at this time the user can use the full linkage type multi-functional rehabilitation wheelchair for assisting the patient to change the posture.

[0046] When the user needs to use the rehabilitation wheelchair while standing, the leg plate electric push rod 27 is used to drive the leg plate frame 28 to be vertical, the seat plate electric push rod 25 is used to drive the seat plate frame 20 to be vertical or slightly backward inclined, under the linkage action of the three-link assembly, the backrest frame 14 will be vertical, the handrails will also be linked to rise and be horizontal or slightly forward inclined, which is convenient for the user to hold hands during standing, in addition, under the action of the connecting rod, the rotating support seat plate 21 will also be linked to rise and become horizontal, which can provide support for the user's crotch during standing, the armpit support 9 will also be linked to rise to provide additional support for the user's armpit, at the same time, the two L-shaped support rods 32 in the knee lifting device can be turned inward, and the two L-shaped support rods 32 are connected and fixed through the two hinge devices at the front ends, at this time the knee pad 31 can support the patient's knee to provide support and make the patient stand more stably, through the above measures, the patient can stand on the footboard 7 to use the full linkage type multi-functional rehabilitation wheelchair for assisting the patient to change the posture or step on the foot support 11 to perform gait training.

[0047] When the user needs to use the rehabilitation wheelchair while lying down, the leg plate electric push rod 27 is used to drive the leg plate frame 28 to be horizontal, the seat plate electric push rod 25 is used to drive the seat plate frame 20 to make the seat plate and the rotating support seat plate 21 horizontal, under the linkage action of the three-link assembly, the backrest frame 14 will be horizontal, the waist support 42, the back support 2 and the headrest 1 will also be linked to change the angle, and the handrails will also be linked to descend and be horizontal and the height is lowered to the same height as the seat plate, which makes the user's hands more comfortable when lying down, at this time the user can lie on the seat plate and the backrest plate to use the rehabilitation wheelchair.

[0048] The principle and implementation mode of the utility model are described by applying specific examples, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A multi-attitude transforming rehabilitation wheelchair, characterized in that: The utility model provides a kind of gait training device, including: Support frame, the bottom of support frame is equipped with walking mechanism; Seat frame group, including seat frame, fixed seat plate and rotating support seat plate, seat frame is equipped in the upper portion of support frame, seat frame is hinged with support frame, fixed seat plate is fixed in the upper portion of seat frame, rectangular hole is formed in the middle of fixed seat plate, rotating support seat plate is placed in the rectangular hole, and rotating support seat plate is rotatably connected with the rectangular hole; Backrest frame group, including backrest frame, waist support and back support assembly, the bottom of backrest frame is hinged with seat frame, waist support and back support assembly are placed in the upper portion of backrest frame, the back of waist support is hinged with backrest frame in the middle portion, the back of waist support is hinged with seat frame in the bottom portion, and back support assembly is hinged with the middle portion of backrest frame; Leg frame group, including leg frame and top knee device, the top of leg frame is hinged with support frame and seat frame simultaneously, and top knee device is connected with leg frame; Footrest group, including footrest and gait training device installed on footrest, footrest is fixedly installed on support frame; Armrest frame, armrest frame includes armrest crossbar and armrest rod fixedly connected with both ends of armrest crossbar, armrest crossbar is placed behind backrest frame, armrest rod is placed on both sides of backrest frame, armrest rod is hinged with one end of armrest support rod, and the other end of armrest support rod is hinged with seat frame; Posture adjusting assembly, including seat plate electric push rod, leg plate electric push rod and three-link assembly, one end of seat plate electric push rod is hinged with support frame, and the other end of seat plate electric push rod is hinged with seat frame;One end of leg plate electric push rod is hinged with support frame, and the other end of leg plate electric push rod is hinged with leg frame;Three-link assembly is used for converting backrest frame between vertical posture and horizontal posture, three-link assembly includes first link, second link and third link, the top of first link is hinged with the bottom of second link and the bottom of third link simultaneously, the bottom of first link is hinged with support frame, the top of second link is hinged with the back of backrest frame, and the top of third link is hinged with the middle portion of armrest crossbar.

2. The multi-posture transformed rehabilitation wheelchair according to claim 1, characterized in that: The seat frame includes seat frame body and seat frame link symmetrically arranged on both sides of the bottom surface of seat frame body, the backrest frame includes backrest frame body and backrest frame link symmetrically mounted on both sides of the back of backrest frame body, the bottom of backrest frame link is hinged with one end of seat frame link, the other end of seat frame link is hinged with leg frame, and seat frame body, backrest frame link, seat frame link and leg frame constitute a parallelogram mechanism, one end of armrest support rod is hinged with the middle portion of armrest rod, and the other end of armrest support rod is hinged with the middle portion of seat frame link.

3. The multi-posture transformed rehabilitation wheelchair according to claim 1, characterized in that: The support frame includes support vertical rod, the top end of support vertical rod is hinged with one end of rotating support seat plate link, and the other end of rotating support seat plate link is hinged with one end of rotating support seat plate close to backrest frame.

4. The multi-posture transformed rehabilitation wheelchair according to claim 1, characterized in that: The handrail frame further comprises a handrail and a handlebar, the handrail is fixedly connected with the handrail rod, and the handlebar is fixedly installed at one end of the handrail close to the leg plate frame.

5. The multi-posture transformed rehabilitation wheelchair according to claim 1, characterized in that: The backrest frame group further comprises armpit supports which are symmetrically arranged on two sides of the backrest frame and are hingedly connected with the backrest frame.

6. The multi-posture transformed rehabilitation wheelchair according to claim 1, characterized in that: The backrest frame group further comprises a headrest, a headrest sliding rail rod and a headrest connecting rod, the headrest is hingedly connected with the headrest sliding rail rod, the headrest sliding rail rod is provided with a sliding rail, one end of the headrest connecting rod is slidingly connected with the sliding rail, and the other end is hingedly connected with the back of the backrest frame.

7. The multi-posture transformed rehabilitation wheelchair according to claim 1, characterized in that: The back support assembly comprises a back support, an X-shaped fixed support and a back support sliding rail, the back of the back support is hingedly connected with four end portions of the X-shaped fixed support, the middle portion of the X-shaped fixed support is fixedly connected with the back support sliding rail, the backrest frame is provided with a sliding block, and the sliding block is slidingly connected with the back support sliding rail.

8. The multi-posture transformed rehabilitation wheelchair according to claim 1, characterized in that: The top knee device comprises two symmetrically arranged L-shaped rods and two top knee pads, the top knee pads are hingedly connected with the L-shaped rods, one end of each of the L-shaped rods is hingedly connected with one side of the leg plate frame, and the other end is detachably connected with the other L-shaped rod.

9. The multi-posture transformed rehabilitation wheelchair according to claim 1, characterized in that: The footboard is provided with two symmetric recesses, the gait training device comprises two foot supports and two crankshafts, the foot supports are slidingly connected with the recesses, the foot supports are provided with two through holes, one end of each of the crankshafts is rotatably arranged at one end of the footboard, and the other end of the crankshafts sequentially passes through the through holes on the foot supports and is rotatably connected with the other end of the footboard.

10. The multi-posture transformed rehabilitation wheelchair according to claim 9, characterized in that: The walking mechanism comprises two omni-directional wheels, two rear wheels and a rear wheel shaft, the two omni-directional wheels are symmetrically arranged on two sides of the front end of the support frame, the two rear wheels are symmetrically arranged on two sides of the rear end of the support frame, the two rear wheels are connected through the rear wheel shaft, a first sprocket is fixedly connected on one of the crankshafts, a second sprocket is fixedly connected on the rear wheel shaft, and the first sprocket and the second sprocket are drivingly connected through a chain.

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