CN212973300U

CN212973300U - Wheel chair

Info

Publication number: CN212973300U
Application number: CN202020715034.XU
Authority: CN
Inventors: 王忠胜; 蒋进良; 胡捍东; 尹玉勤; 周守雄
Original assignee: Foshan Dahao Medical Technology Co ltd
Current assignee: Foshan Dahao Medical Technology Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-04-16
Anticipated expiration: 2030-04-30

Abstract

The utility model provides a wheelchair, which relates to the technical field of articles for daily use. A wheelchair comprises a wheelchair body, wherein the wheelchair body comprises a back frame, a seat frame, a supporting frame and a foot frame assembly, one end of the seat frame is rotatably connected with the back frame, and the other end of the seat frame is rotatably connected with the foot frame assembly. The wheelchair body is provided with an adjusting component which is used for enabling the chair back frame, the chair seat frame and the foot rest component to rotate to be in a horizontal state. The support frame is connected with the chair seat frame and is provided with a movable wheel component. Adopt the utility model discloses, can adjust to the state of lying, the user can lie flat on the wheelchair, has increased the application scope of wheelchair, facilitate promotion.

Description

Wheel chair

Technical Field

The utility model relates to the technical field of articles for daily use, particularly, relate to a wheelchair.

Background

Wheelchairs are chairs equipped with wheels to help replace walking and are classified into electric and manual folding wheelchairs. The wheelchair not only meets the requirements of physical disabilities and mobility-handicapped people for riding instead of walking, but also is more important to facilitate the family members to move and take care of the patients, so that the patients can do physical exercises and participate in social activities by means of the wheelchair. However, the existing wheelchair structure is generally fixed, and a user can only sit on the wheelchair, so that the wheelchair structure is not suitable for some patients needing to lie down.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wheelchair, it can adjust to the state of lying, and the user can lie flat on the wheelchair, has increased the application scope of wheelchair, the facilitate promotion.

The embodiment of the utility model is realized like this:

the embodiment of the application provides a wheelchair, including the wheelchair body, the wheelchair body includes back of the chair frame, seat frame, support frame and foot rest subassembly, and seat frame one end rotates with back of the chair frame to be connected, and the seat frame other end rotates with the foot rest subassembly to be connected. The wheelchair body is provided with an adjusting component which is used for enabling the chair back frame, the chair seat frame and the foot rest component to rotate to be in a horizontal state. The support frame is connected with the chair seat frame and is provided with a movable wheel component.

Further, in some embodiments of the utility model, above-mentioned adjusting part includes connecting rod two, curved connecting rod one and curved connecting rod three, and the one end of connecting rod two is rotated with the one end of connecting rod one and is connected, and the other end of connecting rod two is rotated with the one end of connecting rod three and is connected. The other end of the first connecting rod is fixed on the foot rest component, and the other end of the third connecting rod is fixed on the chair back frame.

Further, in some embodiments of the present invention, the above-mentioned still includes a telescopic rod, one end of the telescopic rod is hinged to the supporting frame, and the other end of the telescopic rod is hinged to the second connecting rod.

Further, in some embodiments of the present invention, the foot rest assembly includes a foot rest and a foot rest, one end of the foot rest is rotatably connected to the seat frame, and the other end of the foot rest is rotatably connected to the foot rest. A baffle is fixed at one side of the bottom of the foot bracket, which is close to the foot rest, one end of the baffle is arranged outside the foot bracket, and the baffle and the foot bracket are arranged on the same horizontal plane.

Further, in some embodiments of the present invention, the guide bar is disposed at the bottom of the pedal frame, the support frame is provided with a fourth connecting rod, and the fourth connecting rod is rotatably disposed with the guide wheel engaged with the guide bar.

Further, in some embodiments of the present invention, the movable wheel assembly includes a front movable wheel and a rear movable wheel, and the front movable wheel is a universal wheel.

Further, in some embodiments of the present invention, the above-mentioned connecting rod five and auxiliary wheel carrier are further included, the five ends of the connecting rod are rotatably connected with the back frame, and the five other ends of the connecting rod are rotatably connected with the auxiliary wheel carrier. The auxiliary wheel frame is rotatably connected with the supporting frame, the auxiliary wheel frame is provided with auxiliary supporting wheels, the auxiliary supporting wheels are universal wheels, and the backward moving wheels are arranged between the forward moving wheels and the auxiliary supporting wheels. When the wheelchair rotates to be in a horizontal state, the vertical distance from the lowest part of the auxiliary supporting wheel to the seat frame is consistent with the vertical distance from the lowest part of the front moving wheel to the seat frame and is greater than the vertical distance from the lowest part of the rear moving wheel to the seat frame.

Further, in some embodiments of the present invention, the chair seat frame is provided with a handle rack, the handle rack is provided with a clamping component, and the chair seat frame is provided with a clamping block matched with the clamping component.

Further, in some embodiments of the present invention, the above-mentioned joint assembly includes six connecting rods and an adjusting rod, one end of the six connecting rods is fixed to the armrest frame, and the other end of the six connecting rods is a free end. And a through hole is formed in the connecting rod six, and a sliding block capable of sliding along the through hole is arranged in the through hole. The adjusting rod is rotatably arranged on the connecting rod six, one end of the adjusting rod is hinged to the sliding block, and the other end of the adjusting rod is a free end. The fixture block is provided with a clamp hole matched with the slide block and a containing groove for containing six free ends of the connecting rod.

Further, in some embodiments of the present invention, an elastic member is disposed in the through hole, one end of the elastic member is connected to the slider, and the other end of the elastic member is connected to the six connecting rods.

Compared with the prior art, the embodiment of the utility model provides a have following advantage or beneficial effect at least:

an embodiment of the utility model provides a wheelchair, including the wheelchair body, the wheelchair body includes back of the chair frame, seat frame, support frame and foot rest subassembly, and seat frame one end rotates with the back of the chair frame to be connected, and the seat frame other end rotates with the foot rest subassembly to be connected. The wheelchair body is provided with an adjusting component which is used for enabling the chair back frame, the chair seat frame and the foot rest component to rotate to be in a horizontal state. The support frame is connected with the chair seat frame and is provided with a movable wheel component.

When the chair is used at ordinary times, a user can directly sit on the chair seat frame, the chair back frame supports the back of the user, and the feet of the user are placed on the foot frame assembly; when a user needs to lie flat, the chair back frame and the foot rest assembly are rotated through the adjusting assembly, so that the chair back frame, the chair seat frame and the foot rest assembly are rotated to be in a horizontal state, and the user can lie flat on the wheelchair. Therefore, the wheelchair can be adjusted to be in a lying state, a user can lie on the wheelchair flatly, the application range of the wheelchair is enlarged, and the wheelchair is convenient to popularize.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a side view of a wheelchair provided by an embodiment of the present invention;

FIG. 2 is a side view of the wheelchair of FIG. 1 rotated into a flat lying position;

FIG. 3 is a side view of a wheelchair adjustment assembly position provided by an embodiment of the present invention;

FIG. 4 is a side view of the position of the adjustment assembly after the wheelchair has been rotated into a lie flat condition;

FIG. 5 is a bottom view of the foot rest position;

FIG. 6 is a schematic structural view of the clamping assembly;

FIG. 7 is a cross-sectional view of the snap-in assembly of FIG. 6;

fig. 8 is a schematic structural diagram of a latch.

Icon: 1-a back of chair frame; 2-chair seat frame; 3-a foot rest; 4-a pedal frame; 5-a support frame; 6-connecting the first rod; 7-connecting rod two; 8-connecting rod III; 9-connecting rod four; 10-a telescopic push rod; 11-a baffle plate; 12-a guide bar; 13-a guide wheel; 14-forward moving the wheel; 15-moving the wheels backwards; 16-auxiliary support wheels; 17-connecting rod five; 18-an auxiliary wheel carrier; 19-handrail frame; 20-fixture block; 21-connecting rod six; 22-a through hole; 23-a slide block; 24-accommodating grooves; 25-clamping hole; 26-adjusting rod; 27-an elastic member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description of the present invention and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and therefore, the present invention should not be construed as being limited thereto. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

Referring to fig. 1 and 2, the present embodiment provides a wheelchair including a wheelchair body, the wheelchair body includes a back frame 1, a seat frame 2, a support frame 5 and a leg frame assembly, one end of the seat frame 2 is rotatably connected to the back frame 1, and the other end of the seat frame 2 is rotatably connected to the leg frame assembly. The wheelchair body is provided with an adjusting component which is used for enabling the chair back frame 1, the chair seat frame 2 and the foot rest component to rotate to be in a horizontal state. The support frame 5 is connected with the chair seat frame 2, and the support frame 5 is provided with a movable wheel component.

When the chair is used at ordinary times, a user can directly sit on the chair seat frame 2, the chair back frame 1 supports the back of the user, and the feet of the user are placed on the foot rest assembly; when a user needs to lie down, the back frame 1 and the leg frame assembly are rotated through the adjusting assembly, so that the back frame 1, the seat frame 2 and the leg frame assembly are rotated to be in a horizontal state, as shown in fig. 2, and the user can lie down on the wheelchair. Therefore, the wheelchair can be adjusted to be in a lying state, a user can lie on the wheelchair flatly, the application range of the wheelchair is enlarged, and the wheelchair is convenient to popularize.

As shown in fig. 1-4, in some embodiments of the present invention, the adjusting assembly includes a second connecting rod 7, a first curved connecting rod 6 and a third curved connecting rod 8, one end of the second connecting rod 7 is rotatably connected to one end of the first connecting rod 6, and the other end of the second connecting rod 7 is rotatably connected to one end of the third connecting rod 8. The other end of the first connecting rod 6 is fixed on the foot rest component, and the other end of the third connecting rod 8 is fixed on the chair back frame 1.

The working principle is as follows: when the wheelchair needs to rotate to be in a lying state, the backrest frame 1 is rotated downwards, the backrest frame 1 enables the third connecting rod 8 to move downwards, meanwhile, the third connecting rod 8 pushes the second connecting rod 7 to move towards one side of the leg frame assembly, and then the second connecting rod 7 pushes the first connecting rod 6 to rotate, the leg frame assembly is supported to rotate upwards, so that the backrest frame 1, the seat frame 2 and the leg frame assembly rotate mutually to be in a horizontal state, and the state conversion is completed; when the seat needs to be rotated to be in a seat state, the operation is simply and quickly carried out according to the operation opposite to the operation before.

As shown in fig. 1 and 2, in some embodiments of the present invention, the device further includes a telescopic push rod 10, one end of the telescopic push rod 10 is hinged to the support frame 5, and the other end of the telescopic push rod 10 is hinged to the second connecting rod 7. The utility model discloses a set up flexible push rod 10, flexible push rod 10 promotes two 7 removals of connecting rod, is convenient for drive connecting rod 6 and three 8 removals of connecting rod, the conversion of the wheelchair state of being convenient for. Alternatively, the telescopic push rod 10 of the present embodiment employs an electro-hydraulic rod.

As shown in fig. 1, 2 and 5, in some embodiments of the present invention, the foot rest assembly includes a foot rest 3 and a foot rest 4, one end of the foot rest 3 is rotatably connected to the seat frame 2, and the other end of the foot rest 3 is rotatably connected to the foot rest 4. A baffle plate 11 is fixed at one side of the bottom of the foot bracket 3 close to the foot rest 4, one end of the baffle plate 11 is arranged outside the foot bracket 3, and the baffle plate 11 and the foot bracket 3 are on the same horizontal plane. The utility model discloses a set up baffle 11, when foot bracket 3 and pedal frame 4 rotated into the horizontality, baffle 11 blocked pedal frame 4, prevented that pedal frame 4 from continuing to rotate for pedal bracket 3, enabled pedal bracket 3 and pedal frame 4 and stabilized at the horizontality.

As shown in fig. 1, 2 and 5, in some embodiments of the present invention, the guide rod 12 is disposed at the bottom of the pedal frame 4, the support frame 5 is disposed with the connecting rod four 9, and the connecting rod four 9 is rotatably disposed with the guide wheel 13 engaged with the guide rod 12. The utility model is provided with the connecting rod IV 9, so that the pedal frame 4 can be conveniently placed on the connecting rod IV 9, and the stability of the user sitting on the wheelchair is improved; because during the state conversion of wheelchair at every turn, pedal frame 4 can slide along connecting rod four 9, the utility model discloses a set up guide bar 12 and leading wheel 13, when pedal frame 4 slides along connecting rod four 9, leading wheel 13 and the contact of guide bar 12, the guide bar 12 of being convenient for slides on guide wheel 13, and then the pedal frame 4 of being convenient for slides along connecting rod four 9.

As shown in fig. 1 and 2, in some embodiments of the present invention, the movable wheel assembly includes a front movable wheel 14 and a rear movable wheel 15, and the front movable wheel 14 is a universal wheel. Therefore, after a user sits on the wheelchair, when a caregiver pushes the wheelchair, the rear moving wheel 15 can only rotate along the longitudinal direction, the wheelchair is more stable in the advancing process, and the front moving wheel 14 is a universal wheel and is convenient to steer through the front moving wheel 14.

As shown in fig. 1 and 2, in some embodiments of the present invention, the chair further comprises a connecting rod five 17 and an auxiliary wheel frame 18, one end of the connecting rod five 17 is rotatably connected to the back frame 1, and the other end of the connecting rod five 17 is rotatably connected to the auxiliary wheel frame 18. The auxiliary wheel frame 18 is rotatably connected with the supporting frame 5, the auxiliary wheel frame 18 is provided with an auxiliary supporting wheel 16, the auxiliary supporting wheel 16 adopts a universal wheel, and the rear moving wheel 15 is arranged between the front moving wheel 14 and the auxiliary supporting wheel 16. When the wheelchair is rotated to be in a horizontal state, the vertical distance from the lowest part of the auxiliary support wheels 16 to the seat frame 2 is consistent with the vertical distance from the lowest part of the front moving wheels 14 to the seat frame 2 and is greater than the vertical distance from the lowest part of the rear moving wheels 15 to the seat frame 2.

Therefore, after the wheelchair is converted into a lying state, the wheelchair is contacted with the ground through the auxiliary supporting wheels 16 and the front moving wheels 14 to support the wheelchair, at the moment, the rear moving wheels 15 are suspended, and the auxiliary supporting wheels 16 and the front moving wheels 14 are universal wheels, so that the wheelchair can be steered and moved after a user lies on the wheelchair; when the wheelchair is converted into a seat state, the wheelchair contacts the ground through the front moving wheels 14 and the rear moving wheels 15, so that the wheelchair is supported, the movement of the wheelchair is facilitated, and the stability of the wheelchair is improved.

As shown in fig. 1 and 2, in some embodiments of the present invention, the seat frame 2 is rotatably provided with a handrail frame 19, the handrail frame 19 is provided with a clamping component, and the seat frame 2 is provided with a clamping block 20 matched with the clamping component. The utility model discloses a set up handrail frame 19, the user of being convenient for places the arm, rotates the setting through handrail frame 19, when the user need lie on the wheelchair, can prevent that handrail frame 19 from causing to shelter from, the user's of being convenient for use to wheelchair and lower wheelchair on to the user through rotating handrail frame 19. By arranging the clamping component and the fixture block 20, after the armrest frame 19 is placed on the chair seat frame 2 by rotating the armrest frame 19, the armrest frame 19 is conveniently fixed on the chair seat frame 2 by matching the clamping component and the fixture block 20, and the stability of the armrest frame 19 in the using process is improved.

As shown in fig. 1, 2, 6-8, in some embodiments of the present invention, the clamping assembly includes a connecting rod six 21 and an adjusting rod 26, one end of the connecting rod six 21 is fixed to the armrest frame 19, and the other end of the connecting rod six 21 is a free end. The six connecting rods 21 are provided with through holes 22, and sliders 23 capable of sliding along the through holes 22 are arranged in the through holes 22. The adjusting rod 26 is rotatably arranged on the connecting rod six 21, one end of the adjusting rod 26 is hinged with the sliding block 23, and the other end of the adjusting rod 26 is a free end. The latch 20 is provided with a latch hole 25 engaged with the slider 23 and a receiving groove 24 receiving the free end of the link bar six 21.

The working principle is as follows: when the handrail frame 19 needs to be fixed, the handrail frame 19 is rotated, the free end of the connecting rod six 21 is embedded into the accommodating groove 24, the free end of the adjusting rod 26 is shifted, the adjusting rod 26 drives the sliding block 23 to slide along the through hole 22, the sliding block 23 slides into the clamping hole 25, the sliding block 23 and the clamping hole 25 are matched and clamped with each other, the connecting rod six 21 is fixed on the clamping block 20, and the handrail frame 19 is fixed on the chair seat frame 2. When the armrest frame 19 needs to be rotated, the free end of the adjusting rod 26 is only needed to be pulled, and the sliding block 23 slides out of the clamping hole 25.

As shown in fig. 1, 2, 6-8, in some embodiments of the present invention, an elastic member 27 is disposed in the through hole 22, one end of the elastic member 27 is connected to the slider 23, and the other end of the elastic member 27 is connected to the connecting rod six 21. The utility model discloses a set up elastic component 27, after slider 23 and card hole 25 mutually supported the joint, elastic component 27 applys elasticity to slider 23 and makes slider 23 be fixed in more stable in the card hole 25, prevents that the vibrations that the wheelchair produced in the use is arranged in moving the in-process from causing slider 23 to drop from calorie hole 25. Alternatively, the elastic member 27 of the present embodiment employs a spring.

To sum up, the embodiment of the utility model provides a wheelchair, including the wheelchair body, the wheelchair body includes back of the chair frame 1, seat frame 2, support frame 5 and foot rest subassembly, and 2 one ends of seat frame rotate with back of the chair frame 1 to be connected, and the 2 other ends of seat frame rotate with the foot rest subassembly to be connected. The wheelchair body is provided with an adjusting component which is used for enabling the chair back frame 1, the chair seat frame 2 and the foot rest component to rotate to be in a horizontal state. The support frame 5 is connected with the chair seat frame 2, and the support frame 5 is provided with a movable wheel component.

When the chair is used at ordinary times, a user can directly sit on the chair seat frame 2, the chair back frame 1 supports the back of the user, and the feet of the user are placed on the foot rest assembly; when a user needs to lie on the wheelchair, the chair back frame 1 and the foot rest assembly are rotated through the adjusting assembly, so that the chair back frame 1, the chair seat frame 2 and the foot rest assembly are rotated to be in a horizontal state, and the user can lie on the wheelchair horizontally. Therefore, the wheelchair can be adjusted to be in a lying state, a user can lie on the wheelchair flatly, the application range of the wheelchair is enlarged, and the wheelchair is convenient to popularize.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wheelchair, characterized by: the wheelchair comprises a wheelchair body, wherein the wheelchair body comprises a chair back frame, a chair seat frame, a supporting frame and a foot rest assembly, one end of the chair seat frame is rotatably connected with the chair back frame, and the other end of the chair seat frame is rotatably connected with the foot rest assembly; the wheelchair body is provided with an adjusting component which is used for enabling the chair back frame, the chair seat frame and the foot rest component to rotate to be in a horizontal state; the support frame is connected with the chair seat frame, and the support frame is provided with a movable wheel component.

2. The wheelchair of claim 1 wherein: the adjusting assembly comprises a second connecting rod, a first arc-shaped connecting rod and a third arc-shaped connecting rod, one end of the second connecting rod is rotatably connected with one end of the first connecting rod, and the other end of the second connecting rod is rotatably connected with one end of the third connecting rod; the other end of the first connecting rod is fixed to the foot rest assembly, and the other end of the third connecting rod is fixed to the back rest assembly.

3. The wheelchair of claim 2 wherein: the telescopic device is characterized by further comprising a telescopic push rod, one end of the telescopic push rod is hinged to the support frame, and the other end of the telescopic push rod is hinged to the second connecting rod.

4. The wheelchair of claim 1 wherein: the foot rest assembly comprises a foot rest frame and a foot rest frame, one end of the foot rest frame is rotatably connected with the chair seat frame, and the other end of the foot rest frame is rotatably connected with the foot rest frame; the bottom of the foot bracket is fixed with a baffle plate at one side close to the foot rest, one end of the baffle plate is arranged outside the foot bracket, and the baffle plate and the foot bracket are arranged on the same horizontal plane.

5. The wheelchair of claim 4 wherein: the pedal frame bottom is equipped with the guide bar, the support frame is equipped with connecting rod four, connecting rod four rotate be equipped with guide bar complex leading wheel.

6. The wheelchair of claim 1 wherein: the movable wheel assembly comprises a front movable wheel and a rear movable wheel, and the front movable wheel adopts a universal wheel.

7. The wheelchair of claim 6 wherein: the chair back frame is characterized by further comprising a fifth connecting rod and an auxiliary wheel frame, wherein one end of the fifth connecting rod is rotatably connected with the chair back frame, and the other end of the fifth connecting rod is rotatably connected with the auxiliary wheel frame; the auxiliary wheel frame is rotationally connected with the supporting frame and is provided with auxiliary supporting wheels, the auxiliary supporting wheels adopt universal wheels, and the rear moving wheel is arranged between the front moving wheel and the auxiliary supporting wheels; when the wheelchair rotates to be in a horizontal state, the vertical distance from the lowest part of the auxiliary supporting wheel to the seat frame is consistent with the vertical distance from the lowest part of the front moving wheel to the seat frame and is greater than the vertical distance from the lowest part of the rear moving wheel to the seat frame.

8. The wheelchair of claim 1 wherein: the chair seat frame rotates and is equipped with the handrail frame, the handrail frame is equipped with the joint subassembly, the chair seat frame be equipped with joint subassembly complex fixture block.

9. The wheelchair of claim 8 wherein: the clamping assembly comprises a connecting rod six and an adjusting rod, one end of the connecting rod six is fixed to the armrest frame, and the other end of the connecting rod six is a free end; a through hole is formed in the connecting rod VI, and a sliding block capable of sliding along the through hole is arranged in the through hole; the adjusting rod is rotatably arranged on the connecting rod six, one end of the adjusting rod is hinged with the sliding block, and the other end of the adjusting rod is a free end; the fixture block is provided with a fixture hole matched with the sliding block and a containing groove for containing the six free ends of the connecting rod.

10. The wheelchair of claim 9 wherein: an elastic piece is arranged in the through hole, one end of the elastic piece is connected with the sliding block, and the other end of the elastic piece is connected with the connecting rod VI.