Self-service getting-on and getting-off wheelchair

Abstract

The utility model discloses a self-service getting-on and getting-off wheelchair which comprises a base, handrails are symmetrically and fixedly installed on the base, vertical rods are symmetrically and fixedly installed in the handrails, movable pipes are installed on the vertical rods in an upward sliding mode, long plates are fixedly installed between the two movable pipes, and limiting plates are installed on the sides, close to each other, of the two long plates in a sliding mode. Moving columns are slidably mounted on the sides, close to each other, of the two limiting plates; the two upper cantilever assemblies are located on one sides of the two long plates correspondingly and used for driving the corresponding moving columns to move; the cushion is arranged between the two moving columns; the two lifting assemblies are symmetrically installed on the base and used for driving the two long plates to move up and down correspondingly. The utility model solves the problems that the patient with heavy weight cannot be held and placed on a wheelchair by a person with too small strength, and meanwhile, the person is easily stumbled in the process of holding the patient and placing the patient on the wheelchair, so that certain potential safety hazards exist.

Description

Technical Field

[0001] The present application belongs to the technical field, and specifically relates to self-service wheelchair mounting and dismounting. Background Art

[0002] A wheelchair is a chair with wheels that can help replace walking. It is an important means of transportation for the injured, sick, and disabled to recover at home, be transported around, see a doctor, and go out for activities. Wheelchairs not only meet the needs of the physically disabled and those with limited mobility, but more importantly, they facilitate family members to move and take care of patients, and enable patients to exercise and participate in social activities with the help of wheelchairs.

[0003] For paralyzed patients, their limbs cannot move, so every time they sit in a wheelchair, they need to be picked up and placed on the wheelchair by a person. For heavier patients, people with insufficient strength are generally unable to pick them up and place them on the wheelchair. At the same time, people are prone to tripping when picking up and placing patients on the wheelchair, which poses certain safety hazards. In view of this, we propose a self-service wheelchair. Utility Model Content

[0004] The purpose of this application is to ensure that for patients with heavy weight, people who are generally too weak to lift them and put them on a wheelchair are not able to do so. At the same time, people are prone to tripping in the process of lifting patients and putting them on a wheelchair, which poses certain safety hazards.

[0005] In order to achieve the above purpose, the present application adopts the following technical solution: a self-service wheelchair, comprising:

[0006] A base, a support frame is symmetrically fixedly installed on the base, a vertical rod is symmetrically fixedly installed in the support frame, a movable tube is slidably installed on the vertical rod, a long board is fixedly installed between two movable tubes, a limit plate is slidably installed on the side where the two long boards are close to each other, and a movable column is slidably installed on the side where the two limit plates are close to each other;

[0007] Two upper cantilever assemblies, the two upper cantilever assemblies are respectively located on one side of the two long plates and are used to drive the corresponding moving columns to move;

[0008] A seat cushion, the seat cushion being arranged between the two movable columns;

[0009] Two lifting assemblies, which are symmetrically mounted on the base and are used to drive the two long boards to move up and down respectively;

[0010] Two handles, the two handles are fixedly mounted on two support frames respectively, one of the handles is fixedly mounted with a second motor, and the output shaft of the second motor passes through one of the handles and is fixedly mounted with a back plate;

[0011] Two universal wheels, both of which are connected to corresponding support frames through fixing blocks;

[0012] Two rollers, the two rollers are respectively located on both sides of the base, and the base is provided with a power assembly for driving the two rollers to move;

[0013] Two rectangular grooves, the two rectangular grooves are symmetrically arranged in the base, a rectangular column is slidably installed in the rectangular groove, a connecting column is rotatably installed at one end of the rectangular column, one end of the connecting column passes through the rectangular groove and extends to the outside and is fixedly installed with a flat plate;

[0014] The lower cantilever assembly is located on the base and is used to control the displacement of the two rectangular columns.

[0015] Preferably, a plurality of hooks are fixedly mounted on the bottom of the movable column, and a fixing ring fixed to the seat cushion is sleeved on the hook.

[0016] Preferably, the seat cushion and the fixing ring are an integrally formed structure, and the hook and the movable column are an integrally formed structure.

[0017] Preferably, the upper cantilever assembly comprises:

[0018] Motor 1, wherein the motor 1 is fixedly mounted on one side of the long board;

[0019] A threaded column 1, wherein the threaded column 1 is fixedly mounted on the output shaft of the motor 1, and one end of the threaded column 1 passes through the movable column, and the threaded column 1 is threadedly connected to the movable column.

[0020] Preferably, the lifting assembly comprises:

[0021] A hydraulic cylinder is fixedly mounted on the top of the base, and an output shaft of the hydraulic cylinder is tightly welded to the long plate.

[0022] Preferably, the fixed block and the support frame are an integrally formed structure, the universal wheel is rotatably connected to the fixed block, the movable tube and the long board are an integrally formed structure, and the connecting column and the flat board are an integrally formed structure.

[0023] Preferably, the power assembly comprises:

[0024] Two fixing plates, both of which are symmetrically fixedly mounted on the top of the base and away from the universal wheel;

[0025] Two motors three are respectively fixedly mounted on one side of two fixed plates, and the output shaft of the motor three passes through the corresponding fixed plates and is coaxially connected to the corresponding rollers, and the output shaft of the motor three is rotationally connected to the fixed plates.

[0026] Preferably, the lower cantilever assembly comprises:

[0027] Two motors four are symmetrically fixedly mounted on the base, and a threaded column two is fixedly mounted on the output shaft of the motor four, one end of the threaded column two passes through one side of the base and extends into the corresponding rectangular column.

[0028] Preferably, the second threaded column is rotatably connected to the base, and the second threaded column is threadedly connected to the rectangular column.

[0029] Preferably, a height sensing module is fixedly installed on the top of the long board, and the height sensing module is electrically connected to the corresponding hydraulic cylinder. A horizontal moving distance sensing module is fixedly installed at the bottom of the moving column and near both ends, and the horizontal moving distance sensing module is electrically connected to the corresponding motor.

[0030] Beneficial effect: the personnel hold the handle and drive the two rollers to rotate through the power component, so that the whole device moves to the side of the bed under the rotation of the rollers and the universal wheel. At the same time, the tail end of the handle is facing the bed. Then, start the second motor and let the output shaft of the second motor drive the back plate to rotate so that the back plate is perpendicular to one of the armrests. Then, the two lifting components respectively drive the two long plates to move up until the seat cushion is 2-3cm higher than the bed. The lifting components are suspended. Then, the two rectangular columns are driven to move outward from the corresponding rectangular grooves through the lower cantilever component. At the same time, the connecting column is rotated downward in one end of the rectangular column so that the plate can be against the ground to ensure the structural stability of the whole device. Finally, the personnel drive the two moving columns to carry the seat through the two upper cantilever components. The cushion is moved together to just above the bed. At this time, the personnel can move the patient's buttocks onto the cushion, and then, the two upper cantilever assemblies respectively drive the two moving columns to carry the cushion and the patient to the wheelchair. Subsequently, the two lifting assemblies respectively drive the two long boards to move down to their original positions, and the output shaft of motor 2 drives the back board to rotate and also restores its original position, so that the patient can lean against the back board, and then use the hand to make the connecting column rotate upward inside one end of the rectangular column and drive the two rectangular columns to retract into the corresponding rectangular grooves through the lower cantilever assembly. The above operation solves the problem that for patients with heavier weight, people who are generally too weak to lift them up and put them on wheelchairs. At the same time, people are prone to tripping in the process of lifting patients and putting them on wheelchairs, which poses certain safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0032] Figure 1 This is one of the overall structural diagrams of the utility model;

[0033] Figure 2 This is the second schematic diagram of the overall structure of the utility model;

[0034] Figure 3 This is the third schematic diagram of the overall structure of the utility model;

[0035] Figure 4 It is a structural schematic diagram of a partial explosion in the utility model;

[0036] Figure 5 It is a schematic diagram of the regional structure of the base in the utility model;

[0037] Figure 6 It is a schematic diagram of the detailed internal structure of the base in the utility model;

[0038] Figure 7 It is a schematic diagram of the regional structure of the medium and long board of the utility model.

[0039] In the figure: 1. base; 11. rectangular groove; 2. support frame; 21. vertical rod; 22. movable tube; 23. fixed block; 24. universal wheel; 3. long board; 31. limit plate; 32. movable column; 33. hook; 4. motor one; 41. threaded column one; 5. cushion; 51. fixing ring; 6. handle; 61. motor two; 62. back plate; 7. fixing plate; 71. motor three; 72. roller; 8. hydraulic cylinder; 9. rectangular column; 91. connecting column; 92. flat plate; 93. motor four; 94. threaded column two. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-Figure 7 This application is described in further detail.

[0041] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0042] The present application embodiment discloses a self-help wheelchair, comprising:

[0043] A base 1, a support frame 2 is symmetrically fixedly installed on the base 1, a vertical rod 21 is symmetrically fixedly installed in the support frame 2, a movable tube 22 is slidably installed on the vertical rod 21, a long board 3 is fixedly installed between two movable tubes 22, a limit plate 31 is slidably installed on the side where the two long boards 3 are close to each other, and a movable column 32 is slidably installed on the side where the two limit plates 31 are close to each other;

[0044] Two upper cantilever assemblies, the two upper cantilever assemblies are respectively located on one side of the two long plates 3 and are used to drive the corresponding moving columns 32 to move;

[0045] A seat cushion 5, which is arranged between two movable columns 32;

[0046] Two lifting assemblies, which are symmetrically mounted on the base 1 and are used to drive the two long boards 3 to move up and down respectively;

[0047] Two handles 6, the two handles 6 are fixedly mounted on the two support frames 2, one of the handles 6 is fixedly mounted with a second motor 61, and the output shaft of the second motor 61 passes through one of the handles 6 and is fixedly mounted with a back plate 62;

[0048] Two universal wheels 24, both of which are connected to the corresponding support frame 2 through a fixing block 23;

[0049] Two rollers 72, the two rollers 72 are respectively located on both sides of the base 1, and the base 1 is provided with a power assembly for driving the two rollers 72 to move;

[0050] Two rectangular grooves 11, the two rectangular grooves 11 are symmetrically arranged in the base 1, a rectangular column 9 is slidably installed in the rectangular grooves 11, a connecting column 91 is rotatably installed at one end of the rectangular column 9, one end of the connecting column 91 passes through the rectangular grooves 11 and extends to the outside and is fixedly installed with a flat plate 92;

[0051] The lower cantilever assembly is located on the base 1 and is used to control the displacement of the two rectangular columns 9.

[0052] Based on the above structure, the personnel hold the handle 6 and drive the two rollers 72 to rotate through the power component, so that the whole device moves to the side of the bed under the rotation of the rollers 72 and the universal wheel 24. At the same time, the tail end of the handle 6 is facing the bed. Then, the motor 2 61 is started, and the output shaft of the motor 2 61 drives the back plate 62 to rotate so that the back plate 62 is perpendicular to one of the support frames 2. Then, the two lifting components respectively drive the two long boards 3 to move up until the cushion 5 is 2-3 cm higher than the bed. The lifting component is suspended, and then the two rectangular columns 9 are driven to move outward from the corresponding rectangular grooves 11 through the lower cantilever component. At the same time, the connecting column 91 is rotated downward at one end of the rectangular column 9 so that the flat plate 92 can be against the ground to ensure the structural stability of the whole device. Finally, the personnel drive the two moving plates 3 respectively through the two upper cantilever components The movable column 32 carries the cushion 5 and moves to the top of the bed. At this time, the personnel can move the patient's buttocks onto the cushion 5. Subsequently, the two upper cantilever assemblies respectively drive the two movable columns 32 to carry the cushion 5 and the patient to the wheelchair. Subsequently, the two lifting assemblies respectively drive the two long boards 3 to move down to the original positions, and the output shaft of the motor 2 61 drives the back plate 62 to rotate and also restore the original position, so that the patient can lean against the back plate 62, and then use the hand to make the connecting column 91 rotate upward at one end of the rectangular column 9 and drive the two rectangular columns 9 to retract into the corresponding rectangular groove 11 through the lower cantilever assembly. The above operation solves the problem that for patients with heavier weight, people who are generally too weak to lift them up and put them on the wheelchair. At the same time, people are prone to tripping in the process of lifting patients and putting them on the wheelchair, which poses certain safety hazards.

[0053] In one embodiment, a plurality of hooks 33 are fixedly mounted on the bottom of the movable column 32 , and a fixing ring 51 fixed to the seat cushion 5 is sleeved on the hook 33 .

[0054] Specifically, the fixing ring 51 can be hung on the hook 33 to ensure the structural stability of the seat cushion 5 between the two movable columns 32 .

[0055] In this embodiment, it is also convenient to take out the seat cushion 5 from between the two movable columns 32 for easy replacement.

[0056] In one embodiment, the seat cushion 5 and the fixing ring 51 are integrally formed, and the hook 33 and the movable column 32 are integrally formed.

[0057] In this embodiment, the structural stability of the seat cushion 5 and the fixing ring 51 is ensured, and the structural stability of the hook 33 and the movable column 32 is ensured.

[0058] In one embodiment, the upper boom assembly includes:

[0059] Motor 1 4, motor 1 4 is fixedly mounted on one side of the long board 3;

[0060] A threaded column 41 is fixedly mounted on the output shaft of the motor 4 , and one end of the threaded column 41 passes through the movable column 32 , and the threaded column 41 is threadedly connected to the movable column 32 .

[0061] Specifically, starting the motor 4 can make the output shaft of the motor 4 drive the threaded column 41 to rotate. Under the action of the thread, the threaded column 41 can drive the movable column 32 to move in the limit plate 31. When the two movable columns 32 move together, they can carry the cushion 5 together through the cooperation of the hook 33 and the fixed ring 51, so that the cushion 5 can be moved to the bed, making it convenient for the patient to move his legs and buttocks onto the cushion 5. Subsequently, under the rotation of the threaded column 41, the two movable columns 32 can drive the cushion 5 to move to the original position.

[0062] In this embodiment, it is ensured that the patient can be easily moved to the wheelchair, and there is no need for personnel to lift and place the patient on the wheelchair.

[0063] In one embodiment, the lifting assembly includes:

[0064] The hydraulic cylinder 8 is fixedly mounted on the top of the base 1 , and the output shaft of the hydraulic cylinder 8 is tightly welded to the long plate 3 .

[0065] Specifically, the hydraulic cylinder 8 is started, and the output shaft of the hydraulic cylinder 8 can drive the long board 3 to move up and down, so that the long board 3 drives the moving column 32 to move above the bed through the limiting plate 31.

[0066] In this embodiment, it is convenient to move the patient onto the cushion 5 .

[0067] In one embodiment, the fixed block 23 and the support frame 2 are an integral structure, the universal wheel 24 is rotatably connected to the fixed block 23, the movable tube 22 and the long board 3 are an integral structure, and the connecting column 91 and the flat plate 92 are an integral structure.

[0068] Specifically, the structures of the fixing block 23 and the support frame 2 are ensured to be stable, so that the universal wheel 24 can roll normally on the ground, and the universal wheel 24 can rotate on the fixing block 23 .

[0069] In this embodiment, the structures of the movable tube 22 and the long plate 3 are ensured to be stable, and the structures of the connecting column 91 and the flat plate 92 are ensured to be stable.

[0070] In one embodiment, the power assembly includes:

[0071] Two fixing plates 7, both fixing plates 7 are symmetrically fixedly mounted on the top of the base 1 and away from the universal wheel 24;

[0072] Two motors three 71 are respectively fixedly mounted on one side of the two fixed plates 7, and the output shafts of the motors three 71 pass through the corresponding fixed plates 7 and are coaxially connected to the corresponding rollers 72, and the output shafts of the motors three 71 are rotationally connected to the fixed plates 7.

[0073] Specifically, the motor three 71 is started, and the motor three 71 works on the fixed plate 7. The output shaft of the motor three 71 can drive the roller 72 to rotate, thereby enabling the entire device to move.

[0074] In this embodiment, the displacement of the entire device is facilitated.

[0075] In one embodiment, the lower boom assembly includes:

[0076] Two motors 93 are symmetrically fixedly mounted on the base 1 , and a threaded column 94 is fixedly mounted on the output shaft of the motor 93 , one end of the threaded column 94 passes through one side of the base 1 and extends into the corresponding rectangular column 9 .

[0077] Specifically, start motor four 93 so that the output shaft of motor four 93 drives threaded column two 94 to rotate in rectangular column 9. Under the action of the thread, threaded column two 94 can drive rectangular column 9 to move outward in rectangular groove 11. At the same time, under the action of gravity, connecting column 91 can rotate downward in one end of rectangular column 9 to ensure that flat plate 92 can be against the ground at any time.

[0078] In this embodiment, the stability of the entire device is ensured.

[0079] In one embodiment, the second threaded column 94 is rotatably connected to the base 1 , and the second threaded column 94 is threadedly connected to the rectangular column 9 .

[0080] In this embodiment, it is ensured that the second threaded column 94 can rotate normally in the base 1 and the rectangular column 9.

[0081] In one embodiment, a height sensing module is fixedly installed on the top of the long board 3, and the height sensing module is electrically connected to the corresponding hydraulic cylinder 8. A horizontal moving distance sensing module is fixedly installed at the bottom of the moving column 32 and near the two ends, and the horizontal moving distance sensing module is electrically connected to the corresponding motor 4.

[0082] Specifically, when the long board 3 moves up to a specified height, the height sensing module can sense the height and control the start and stop of the hydraulic cylinder 8 .

[0083] In this embodiment, when the moving column 32 moves left and right to a specified distance, the horizontal movement distance sensing module senses the horizontal movement distance and controls the start and stop of the motor 1 4 .

[0084] When the self-service wheelchair of this embodiment is in use, the person holds the handle 6 and starts the motor 3 71, so that the output shaft of the motor 3 71 drives the roller 72 to rotate, and the whole device moves to the side of the bed under the rotation of the roller 72 and the universal wheel 24. At the same time, the tail end of the handle 6 faces the bed, and then the motor 2 61 is started, and the output shaft of the motor 2 61 drives the back plate 62 to rotate, so that the back plate 62 is perpendicular to one of the support frames 2, and then the two hydraulic cylinders 8 are started, and the output shafts of the two hydraulic cylinders 8 drive the corresponding long boards 3 to move upward, so that the long boards 3 drive the moving columns 32 to move to the top of the bed through the limit plate 31, until the seat cushion 5 is 2-3 cm higher than the bed, and the hydraulic cylinder 8 is suspended;

[0085] Then, the motor 4 93 is started, so that the output shaft of the motor 4 93 drives the threaded column 2 94 to rotate in the rectangular column 9. Under the action of the thread, the threaded column 2 94 can drive the rectangular column 9 to move toward the outside in the rectangular groove 11. At the same time, under the action of gravity, the connecting column 91 can rotate downward in one end of the rectangular column 9 to ensure that the flat plate 92 can be against the ground at any time, ensuring the structural stability of the overall device.

[0086] Finally, the personnel starts the motor 4, so that the output shaft of the motor 4 drives the threaded column 41 to rotate. Under the action of the thread, the threaded column 41 can drive the movable column 32 to move in the limit plate 31. When the two movable columns 32 move together, the hook 33 and the fixed ring 51 can cooperate to carry the cushion 5 to move together, so that the cushion 5 can be moved to the bed. At this time, the personnel can move the patient's buttocks and legs onto the cushion 5.

[0087] Then, the output shaft of the motor 14 drives the threaded column 141 to rotate, so that the threaded column 141 drives the movable column 32 to move to the original position in the limiting plate 31, and the two movable columns 32 carry the cushion 5 to move to the original position through the cooperation of the hook 33 and the fixing ring 51, so that the patient can move to the wheelchair;

[0088] Subsequently, the two hydraulic cylinders 8 are started, and the output shafts of the two hydraulic cylinders 8 drive the corresponding long boards 3 to move downward, so that the long boards 3 drive the movable columns 32 to move to their original positions through the limit plates 31, and the output shaft of the motor 2 61 drives the back board 62 to rotate and also restore to its original position, so that the patient can lean against the back board 62, and then use the hand to rotate the connecting column 91 upward in one end of the rectangular column 9 and the motor 4 93, so that the output shaft of the motor 4 93 drives the threaded column 2 94 to rotate in the rectangular column 9, so that the threaded column 2 94 can drive the rectangular column 9 to retract into the rectangular groove 11. The above operation solves the problem that for patients with heavier weight, people who are generally too weak to lift them up and put them on wheelchairs. At the same time, people are prone to tripping in the process of lifting patients and putting them on wheelchairs, which poses certain safety hazards.

[0089] Finally, it should be noted that the above is only a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. A self-help wheelchair, It is characterized in that include: A base (1), a support frame (2) is symmetrically fixedly installed on the base (1), a vertical rod (21) is symmetrically fixedly installed inside the support frame (2), a movable tube (22) is slidably installed on the vertical rod (21), a long board (3) is fixedly installed between two movable tubes (22), a limit plate (31) is slidably installed on the adjacent sides of the two long boards (3), and a movable column (32) is slidably installed on the adjacent sides of the two limit plates (31); Two upper cantilever assemblies, the two upper cantilever assemblies are respectively located on one side of the two long plates (3) and are used to drive the corresponding moving columns (32) to move; A seat cushion (5), wherein the seat cushion (5) is arranged between two movable columns (32); Two lifting assemblies, the two lifting assemblies are symmetrically mounted on the base (1) and are used to drive the two long boards (3) to move up and down respectively; Two handles (6), the two handles (6) are respectively fixedly mounted on the two support frames (2), one of the handles (6) is fixedly mounted with a second motor (61), and the output shaft of the second motor (61) passes through one of the handles (6) and is fixedly mounted with a back plate (62); Two universal wheels (24), both of which are connected to the corresponding support frame (2) through a fixing block (23); Two rollers (72), the two rollers (72) are respectively located on two sides of the base (1), and a power component for driving the two rollers (72) to move is provided on the base (1); Two rectangular grooves (11), the two rectangular grooves (11) are symmetrically arranged in the base (1), a rectangular column (9) is slidably installed in the rectangular groove (11), a connecting column (91) is rotatably installed at one end of the rectangular column (9), one end of the connecting column (91) passes through the rectangular groove (11) and extends to the outside and is fixedly installed with a flat plate (92); A lower cantilever assembly is located on the base (1) and is used to control the displacement of two rectangular columns (9).

2. The self-help wheelchair according to claim 1, Features: A plurality of hooks (33) are fixedly mounted on the bottom of the movable column (32), and a fixing ring (51) fixed to the seat cushion (5) is sleeved on the hook (33).

3. The self-help wheelchair according to claim 2, Features: The seat cushion (5) and the fixing ring (51) are an integrally formed structure, and the hook (33) and the movable column (32) are an integrally formed structure.

4. The self-help wheelchair according to claim 1, Features: The upper cantilever assembly comprises: Motor 1 (4), wherein the motor 1 (4) is fixedly mounted on one side of the long board (3); A threaded column (41) is fixedly mounted on the output shaft of the motor (4), and one end of the threaded column (41) passes through the movable column (32), and the threaded column (41) is threadedly connected to the movable column (32).

5. The self-help wheelchair according to claim 1, Features: The lifting assembly comprises: A hydraulic cylinder (8) is fixedly mounted on the top of the base (1), and an output shaft of the hydraulic cylinder (8) is tightly welded to the long plate (3).

6. The self-help wheelchair according to claim 1, Features: The fixed block (23) and the support frame (2) are integrally formed structures, the universal wheel (24) is rotatably connected to the fixed block (23), the movable tube (22) and the long board (3) are integrally formed structures, and the connecting column (91) and the flat board (92) are integrally formed structures.

7. The self-help wheelchair according to claim 1, Features: The power assembly comprises: Two fixing plates (7), both fixing plates (7) are symmetrically fixedly mounted on the top of the base (1) and away from the universal wheel (24); Two motors three (71), the two motors three (71) are respectively fixedly mounted on one side of two fixed plates (7), and the output shafts of the motors three (71) penetrate the corresponding fixed plates (7) and are coaxially connected to the corresponding rollers (72), and the output shafts of the motors three (71) are rotatably connected to the fixed plates (7).

8. The self-help wheelchair according to claim 7, Features: The lower cantilever assembly comprises: Two motors (93) are symmetrically fixedly mounted on the base (1), and a threaded column (94) is fixedly mounted on the output shaft of the motor (93), one end of the threaded column (94) passes through one side of the base (1) and extends into the corresponding rectangular column (9).

9. The self-help wheelchair according to claim 8, Features: The second threaded column (94) is rotatably connected to the base (1), and the second threaded column (94) is threadedly connected to the rectangular column (9).

10. The self-help wheelchair according to any one of claims 4 or 5, Features: A height sensing module is fixedly installed on the top of the long board (3), and the height sensing module is electrically connected to the corresponding hydraulic cylinder (8). A horizontal movement distance sensing module is fixedly installed at the bottom of the moving column (32) and near the two ends, and the horizontal movement distance sensing module is electrically connected to the corresponding motor 1 (4).

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