Movable rehabilitation training device

Abstract

This invention belongs to the technical field of rehabilitation training devices, specifically relating to a movable rehabilitation training device, including a seat cushion, a backrest rotatably connected to the seat cushion, a support platform located on the left side of the seat cushion, an IV pole located on the support platform, three wheels located under the seat cushion, and a foot pedal located on the left wheel; a connecting mechanism located between the wheels and the seat cushion and support platform, which facilitates the connection between the wheels and the seat cushion and support platform; a lifting mechanism located on the upper side of the wheels, used to lift the wheels off the ground; and an adjustment mechanism located on the right end of the backrest, used to adjust the backrest angle. This invention facilitates the movement of the training device, and the entire seat cushion is moved during movement, eliminating the need to find a chair, making it convenient to use. Furthermore, it allows the support platform, backrest, and upper part of the seat cushion to be aligned to form a hospital bed, thus broadening its applicability.

Description

Technical Field

[0001] This invention belongs to the technical field of rehabilitation training devices, specifically relating to a mobile rehabilitation training device. Background Technology

[0002] With the development of rehabilitation medicine, rehabilitation training devices are becoming increasingly common for postoperative patients, patients with limited mobility, and patients who need short-term assisted training. There are many types of existing rehabilitation training devices. For foot training, foot pedals are generally used, similar to riding a bicycle. The patient sits there and then steps on the foot pedals to exercise.

[0003] When in use, most existing foot pedal training devices are fixed in one place and cannot be moved, which limits their use. Although there are also foot pedal training devices that can be moved, most of them only have foot pedals and lack a seat. They also require a special chair to be used, which still limits their use. In addition, the shape of existing training devices is relatively fixed and cannot be changed as needed, resulting in a large range of applications and limitations. Summary of the Invention

[0004] The purpose of this invention is to provide a portable rehabilitation training device, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A portable rehabilitation training device includes a seat cushion, a backrest rotatably connected to the seat cushion, a support platform located on the left side of the seat cushion, an IV pole located on the support platform, three wheels located under the seat cushion, and a foot pedal located on the left wheel; a connecting mechanism located between the wheels and the seat cushion and support platform for coordinating the connection between the wheels and the seat cushion and support platform; a lifting mechanism located above the wheels for lifting the wheels off the ground; an adjustment mechanism located at the right end of the backrest for adjusting the backrest angle; a flattening mechanism located under the support platform and backrest for aligning the seat cushion, backrest, and support platform to form a bed; and a locking mechanism located under the seat cushion to prevent the support platform from loosening.

[0006] As a preferred embodiment of the portable rehabilitation training device of the present invention, the connecting mechanism includes a support frame disposed on the outside of the left wheel, a central shaft fixed to the wheel is rotatably connected to the support frame, a main frame composed of a crossbeam and two vertical beams is provided on the upper side of the support frame, the support frame is rotatably connected to the left vertical beam, a bearing frame that cooperates with the two rear wheels is provided on the right end of the crossbeam, and two inclined beams fixed to the bottom of the seat are fixedly connected to the crossbeam.

[0007] As a preferred embodiment of the mobile rehabilitation training device of the present invention, the support frame includes a support beam, with a rotating shaft rotatably connected to both ends of the support beam, a rotating plate fixedly connected to the rotating shaft, and a transmission shaft with a right-end wheel fixed to the rotating plate rotatably connected to the rotating plate.

[0008] As a preferred embodiment of the mobile rehabilitation training device of the present invention, the lifting mechanism includes a transfer frame fixedly connected to the left and right ends of the crossbeam, an electric telescopic rod fixedly connected to the transfer frame, and an anti-slip pad fixedly connected to the telescopic end of the electric telescopic rod.

[0009] As a preferred embodiment of the portable rehabilitation training device of the present invention, the adjustment mechanism includes a fixed plate fixedly connected to the bottom of the seat cushion, the backrest has two inner grooves, the inner wall of the inner grooves is rotatably connected to a bracing plate through a damping shaft, and the fixed plate has multiple slots that cooperate with the bracing plate.

[0010] As a preferred embodiment of the mobile rehabilitation training device of the present invention, the leveling mechanism includes an L-shaped groove provided on the left end vertical beam and horizontal beam, the L-shaped groove is provided with an internal thread, a screw is threadedly connected to the internal thread, the upper end of the screw is rotatably connected to the support platform, the support frame is provided with a sliding groove, and a sliding strip that cooperates with the sliding groove is fixedly connected to the support platform.

[0011] As a preferred embodiment of the mobile rehabilitation training device of the present invention, the vertical beam at the right end is provided with a transmission component that provides power for the lifting and lowering of the support platform; The transmission component includes a through groove communicating with an L-shaped groove. A vertical rod is rotatably connected to the through groove. Multiple rings are fixedly connected to the L-shaped groove. A horizontal rod is rotatably connected to each ring. A receiving shaft is rotatably connected to the L-shaped groove. A regular hexagonal column is fixedly connected to the receiving shaft. A regular hexagonal groove that mates with the regular hexagonal column is provided on the screw. A first bevel gear is fixedly connected to the lower end of both the receiving shaft and the vertical rod. A second bevel gear that meshes with the first bevel gear is fixedly connected to both ends of the horizontal rod. A U-shaped frame is fixedly connected to the through groove. An L-shaped sliding plate is slidably connected to the U-shaped frame. The L-shaped sliding plate is elastically connected to the inner wall of the through groove via a first spring. A threaded groove is provided on the vertical rod. A push rod that mates with the threaded groove is provided on the L-shaped sliding plate. A protrusion that mates with the L-shaped sliding plate is provided on the backrest.

[0012] As a preferred embodiment of the portable rehabilitation training device of the present invention, the locking mechanism includes a base plate with the same width as the fixed plate disposed at the bottom of the support platform. The base plate is provided with a receiving groove, and the fixed plate is provided with a mounting groove facing the receiving groove. A plug block that mates with the receiving groove is slidably connected in the mounting groove. A U-shaped plate is provided on the right side of the plug block. The U-shaped plate is elastically connected to the plug block by a second spring, and the right end of the U-shaped plate is elastically connected to the inner wall of the mounting groove by a third spring.

[0013] As a preferred embodiment of the mobile rehabilitation training device of the present invention, the inclined support plate is provided with a pressing member that provides power for the movement of the U-shaped plate. The pressing member includes an insertion port provided on the mounting groove. A top block that mates with the insertion port is fixedly connected to the inclined support plate. Both the top block and the U-shaped plate are provided with mutually cooperating inclined edges.

[0014] As a preferred embodiment of the portable rehabilitation training device of the present invention, the weight of the backrest is greater than the elasticity of the third spring, and a fourth spring is provided in the mounting groove, wherein the elasticity of the fourth spring is less than that of the second spring.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a seat cushion, backrest, wheels, connecting mechanism, lifting mechanism, etc., the seat cushion and backrest can be moved. After being moved to the desired location, the electric telescopic rod extends, allowing the anti-slip mat to contact the ground and lift the wheels, so that the patient can train. This breaks the limitation of not being able to move and having to find a seat. In addition, by setting up an adjustment mechanism, the backrest can be adjusted so that the patient can have a comfortable backrest angle for training.

[0016] 2. By setting up a flattening mechanism, after the backrest is laid flat, the support platform can be lowered automatically. At this time, the support platform, backrest, and upper part of the seat cushion are aligned to form a hospital bed, which can be used for emergency treatment of patients. It can also be used temporarily as an emergency bed, making its application range wider.

[0017] 3. Through the designer's locking mechanism, when the support platform, backrest, and seat cushion are aligned to form a hospital bed, the insert block can be inserted into the receiving slot to prevent the support platform from moving up and down, thus ensuring the stability of the hospital bed formed by aligning the support platform, backrest, and seat cushion. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the first external structure of a portable rehabilitation training device. Figure 2 This is a schematic diagram of the second external structure of the portable rehabilitation training device. Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A; Figure 4 for Figure 2Enlarged schematic diagram of the structure at point B; Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point C; Figure 6 A schematic cross-sectional view of the beam structure of a portable rehabilitation training device; Figure 7 A schematic cross-sectional view of the screw structure of a portable rehabilitation training device; Figure 8 A schematic cross-sectional view of the L-shaped skateboard structure of a portable rehabilitation training device; Figure 9 for Figure 8 Enlarged schematic diagram of the structure at point D; Figure 10 This is a cross-sectional view of the fixed plate structure of a portable rehabilitation training device.

[0020] In the diagram: 11. Seat cushion; 12. Backrest; 13. Support platform; 14. Infusion pole; 15. Wheel; 16. Foot pedal; 21. Support frame; 22. Central shaft; 23. Crossbeam; 24. Vertical beam; 25. Bearing frame; 251. Support beam; 252. Rotating plate; 253. Drive shaft; 26. Inclined beam; 31. Adapter frame; 32. Electric telescopic rod; 33. Anti-slip mat; 41. Fixing plate; 42. Inner groove; 43. Inclined brace plate; 44. Slot; 51. L-shaped groove; 52. Internal thread; 53. Screw; 54. Slide groove; 55. Slide bar; 56. Transmission component; 561 562. Ring; 563. Crossbar; 564. First bevel gear; 565. Second bevel gear; 566. U-shaped frame; 567. L-shaped sliding plate; 568. First spring; 569. Threaded groove; 560. Top rod; 5610. Protrusion; 5611. Receiving shaft; 5612. Regular hexagonal column; 5613. Regular hexagonal groove; 61. Base plate; 62. Receiving groove; 63. Mounting groove; 64. Insert block; 65. U-shaped plate; 66. Second spring; 67. Third spring; 68. Extrusion part; 681. Insert; 682. Top block; 683. Inclined edge; 684. Fourth spring. Detailed Implementation

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] Reference Figure 1 - Figure 10A portable rehabilitation training device is provided, which enables adjustment of the backrest 12 and movement of the seat cushion 11. It includes a seat cushion 11, a backrest 12 rotatably connected to the seat cushion 11, a support platform 13 located on the left side of the seat cushion 11, an IV pole 14 located on the support platform 13, three wheels 15 located under the seat cushion 11, and a foot pedal 16 located on the left wheel 15; a connecting mechanism is provided between the wheels 15 and the seat cushion 11 and the support platform 13. The system includes: a wheel 15 that engages with the seat 11 and support platform 13; a lifting mechanism located on the upper side of the wheel 15 to lift the wheel 15 off the ground; an adjustment mechanism located on the right end of the backrest 12 to adjust the angle of the backrest 12; a flattening mechanism located on the lower side of the support platform 13 and the backrest 12 to make the seat 11, backrest 12, and support platform 13 flush to form the bed; and a locking mechanism located on the lower side of the seat 11 to prevent the support platform 13 from becoming loose.

[0023] The backrest 12 has side panels at both ends and a back panel fixed to the side panels in the middle. A cushion is fixedly connected to the back panel. The side panels are longer than the cushion to prevent the cushion from getting stuck with the seat cushion 11 when rotating. During exercise, the patient sits on the seat cushion 11 with their back against the cushion and their feet on the foot pedal 16. An opening for accommodating the IV pole 14 is also provided on the backrest 12. When the seat cushion 11, backrest 12, and support platform 13 are aligned to form a bed, the IV pole 14 can be placed at one end of the backrest 12 for IV infusion, avoiding the need for a long IV line. Foldable railings are also provided at both ends of the seat cushion 11, with latches to lock the railings and prevent the patient from falling off the seat cushion during exercise.

[0024] Furthermore, the connecting mechanism includes a support frame 21 located on the outside of the left wheel 15. A central shaft 22 fixed to the wheel 15 is rotatably connected to the support frame 21. A main frame composed of a crossbeam 23 and two vertical beams 24 is provided on the upper side of the support frame 21. The support frame 21 is rotatably connected to the left vertical beam 24. A bearing frame 25 cooperating with the two right wheels 15 is provided at the right end of the crossbeam 23. Two inclined beams 26 fixed to the bottom of the seat cushion 11 are fixedly connected to the crossbeam 23. The bearing frame 25 includes a support beam 251. Rotating shafts are rotatably connected to both ends of the support beam 251. A rotating plate 252 is fixedly connected to the rotating shaft. A transmission shaft 253 fixed to the right wheel 15 is rotatably connected to the rotating plate 252.

[0025] The support frame 21 is V-shaped, with one wheel 15 on the left end and two wheels 15 on the right end. The two wheels 15 on the right end are symmetrically arranged. The two inclined beams 26 form a triangular structure, which improves the support effect. The inclined beams 26, horizontal beams 23, vertical beams 24, and load-bearing frame 25 are strong enough to support the patient. The rotating shaft and rotating plate 252 allow the right wheel 15 to be turned, preventing the right wheel 15 from getting stuck when the left wheel 15 is rotating.

[0026] Preferably, the lifting mechanism includes a transfer frame 31 fixedly connected to the left and right ends of the crossbeam 23, an electric telescopic rod 32 fixedly connected to the transfer frame 31, and an anti-slip pad 33 fixedly connected to the telescopic end of the electric telescopic rod 32; the adjustment mechanism includes a fixing plate 41 fixedly connected to the bottom of the seat cushion 11, two inner grooves 42 are provided on the back of the backrest 12, and the inner wall of the inner groove 42 is rotatably connected to the inclined support plate 43 through a damping shaft, and the fixing plate 41 is provided with a plurality of slots 44 that cooperate with the inclined support plate 43.

[0027] It should be noted that the electric telescopic rod 32 here has sufficient thrust to ensure overall support. At the same time, a charging power supply can be installed in the support beam 251 to power the electric telescopic rod 32. Since it is a charging power supply, it is not limited by the power socket 681, making the overall movement more convenient. When movement is needed, the electric telescopic rod 32 retracts, so that the wheels 15 contact the ground, which is convenient for short-distance riding or moving the entire device. The anti-slip mat 33 can prevent the overall slippage during exercise. The inclined support plate 43 cooperates with the slot 44 to adjust the backrest 12 so as to exercise at a comfortable backrest angle. A handle is also provided on the right end of the fixed plate 41, so that the whole device can be pushed from the right end.

[0028] In use, during exercise, the electric telescopic rod 32 is initially in a shortened state, with the wheels 15 in contact with the ground for easy movement. When the desired location is reached, the electric telescopic rod 32 extends, separating the wheels 15 from the ground, and the anti-slip mat 33 contacts the ground for overall support. The patient can then sit on the seat cushion 11 and step on the foot pedals 16 for exercise. During exercise, the left wheel 15 spins freely without inducing overall movement. The support platform 13 has handles at both ends for the patient to grip for support. The support platform 13 allows the patient to place items or easily eat, and provides comfortable hand support. The support beam 251 also... It can be equipped with hooks, which consist of movable rings and hooks. The position of the hooks can be adjusted by moving the movable rings. Chest bottles can be hung on the hooks (the hooks can also be set on the crossbeam 23 under the seat cushion 11, with four hooks arranged side by side on the crossbeam 23, two of which are close together facing forward and the other two close together facing backward). It is worth noting that an adjusting rod is also threadedly connected to the support frame 21. An elastic friction pad is fixedly connected to the lower end of the adjusting rod. By rotating the adjusting rod, the elastic friction pad can be made to abut against the left wheel 15 or the pressure between the wheel and the elastic friction pad can be increased, thereby adjusting the force required for foot exercise, which is suitable for patients at different recovery stages.

[0029] Reference Figure 1 - Figure 9 It provides a leveling mechanism for a portable rehabilitation training device, which solves the problem of how to make the seat cushion 11, backrest 12, and seat cushion 11 flat to form an emergency bed. It includes an L-shaped groove 51 set on the left vertical beam 24 and horizontal beam 23. The L-shaped groove 51 is provided with an internal thread 52. A screw 53 is threaded on the internal thread 52. The upper end of the screw 53 is rotatably connected to the support platform 13. The support frame 21 is provided with a sliding groove 54. A sliding strip 55 that cooperates with the sliding groove 54 is fixedly connected to the support platform 13.

[0030] Specifically, when the support platform 13 is moved, the slide bar 55 can drive the support frame 21 to deflect, which in turn will drive the left wheel 15 to deflect and turn. At this time, since the screw 53 is rotatably connected to the support platform 13, the screw 53 will not be driven to rotate. The slide groove 54 and the slide bar 55 are both T-shaped, thus preventing the slide bar 55 from separating from the slide groove 54.

[0031] Furthermore, the right-end vertical beam 24 is equipped with a transmission component 56 that provides power for the lifting and lowering of the support platform 13; the transmission component 56 includes a through groove communicating with the L-shaped groove 51, a vertical rod rotatably connected in the through groove, multiple rings 561 fixedly connected in the L-shaped groove 51, a horizontal bar 562 rotatably connected on the rings 561, a receiving shaft 5611 rotatably connected in the L-shaped groove 51, a regular hexagonal column 5612 fixedly connected on the receiving shaft 5611, and a regular hexagonal groove 5613 on the screw 53 that mates with the regular hexagonal column 5612. A first bevel gear 563 is fixedly connected to the lower end of the vertical rod. A second bevel gear 564 that meshes with the first bevel gear 563 is fixedly connected to both ends of the horizontal rod 562. A U-shaped frame 565 is fixedly connected inside the through groove. An L-shaped slide plate 566 is slidably connected inside the U-shaped frame 565. The L-shaped slide plate 566 is elastically connected to the inner wall of the through groove through a first spring 567. A threaded groove 568 is provided on the vertical rod. A push rod 569 that mates with the threaded groove 568 is provided on the L-shaped slide plate 566. A protrusion 5610 that mates with the L-shaped slide plate 566 is provided on the backrest 12.

[0032] It should be noted that the diameter of the vertical rod here is smaller than the diameter of the through groove, thus ensuring sufficient space for the installation of the L-shaped slide plate 566. The upper end of the L-shaped slide plate 566 is located on the upper side of the fixed plate 41, but there is a distance between the upper surface of the L-shaped slide plate 566 and the back of the backrest 12, thus ensuring that the L-shaped slide plate 566 will not slide when adjusting the angle of the backrest 12, and preventing the support platform 13 from rising or falling when adjusting the backrest 12.

[0033] In use, when the seat cushion 11, backrest 12, and seat cushion 11 need to be aligned to form the bed frame, first, move the diagonal brace 43 completely into the inner groove 42. The damping shaft prevents the diagonal brace 43 from rotating automatically. Then, move the backrest 12 so that its back surface abuts against the upper surface of the fixing plate 41. During this process, the protrusion 5610 on the backrest 12 will press against the L-shaped sliding plate 566, causing the L-shaped sliding plate 566 to move downwards. As the L-shaped sliding plate 566 moves downwards, it drives the top rod 569 downwards. The top rod 569 engages with the threaded groove 568, causing the vertical rod to rotate. This, in turn, causes the first bevel gear 563 at the lower end of the vertical rod to rotate, which in turn causes the second bevel gear 564 at the right end of the horizontal rod 562 to rotate, causing the horizontal rod 562 to rotate. This, in turn, causes the second bevel gear 564 at the left end of the horizontal rod 562 to rotate, which in turn causes the first bevel gear 563 on the receiving shaft 5611 to rotate, causing the receiving shaft 5611 to rotate. The rotation of the regular hexagonal column 5612 drives the rotation of the regular hexagonal groove 5613, which in turn drives the screw 53 to rotate. It's worth noting that the protrusion 5610 here allows the L-shaped sliding plate 566 to press down a longer distance, thus ensuring the vertical rod can rotate the required number of turns. When the screw 53 rotates, it engages with the internal thread 52, causing the screw 53 to move downwards, driving the support platform 13 downwards. At this time, the regular hexagonal groove 5613 engages with the regular hexagonal column 5612, proceeding... Guided by the screw 53, when the support platform 13 moves downward, the slide groove 54 and the slide bar 55 cooperate to guide the support platform 13. Since the support platform 13 is rotatably connected to the screw 53, the screw 53 will not drive the support platform 13 to rotate when it rotates. When the backrest 12 abuts against the fixed plate 41, the upper surface of the support platform 13 is flush with the upper surface of the seat cushion 11. At this time, the upper surfaces of the seat cushion 11, the support platform 13, and the backrest 12 are flush, forming a bed for emergency rescue.

[0034] Reference Figure 1 - Figure 10A locking mechanism for the movable rehabilitation training device is provided, solving the problem of preventing the support platform 13 from loosening. It includes a base plate 61 with the same width as the fixed plate 41, located at the bottom of the support platform 13. The base plate 61 has a receiving groove 62, and the fixed plate 41 has a mounting groove 63 directly opposite the receiving groove 62. A plug 64 that mates with the receiving groove 62 is slidably connected within the mounting groove 63. A U-shaped plate 65 is located on the right side of the plug 64, elastically connected to the plug 64 via a second spring 66. The right end of the U-shaped plate 65 is elastically connected to the inner wall of the mounting groove 63 via a third spring 67. The support plate 43 is provided with an extrusion member 68 that provides power for the movement of the U-shaped plate 65. The extrusion member 68 includes an insertion port 681 set on the mounting groove 63. A top block 682 that mates with the insertion port 681 is fixedly connected to the inclined support plate 43. Both the top block 682 and the U-shaped plate 65 are provided with mutually cooperating inclined edges 683. The weight of the backrest 12 is greater than the elasticity of the third spring 67. A fourth spring 684 is provided in the mounting groove 63. The elasticity of the fourth spring 684 is less than that of the second spring 66. Here, the width of the top block 682 is less than the width of the fixed plate 41, thereby ensuring that the top block 682 can be inserted into the insertion port 681.

[0035] In use, when the lower end face of the base plate 61 is flush with the upper end face of the insert block 64, the top block 682 just enters the socket 681. At this time, the backrest 12 is not completely flat. Then, the backrest 12 continues to move downward, causing the top block 682 to insert into the socket 681, pushing the U-shaped plate 65 towards the receiving groove 62, causing the second spring 66 to move towards the receiving groove 62, which in turn pushes the insert block 64 towards the receiving groove 62. At this time, since the insert block 64 is not directly aligned with the receiving groove 62, the insert block 64 abuts against the side wall of the base plate 61, and the second spring 66 is in a compressed state and continues to be compressed. When the top block 682 is fully inserted into the socket 681, the insert block 64 is directly aligned with the receiving groove 62. Under the action of the second spring 66, the insert 64 is inserted into the receiving groove 62. Since the elasticity of the second spring 66 is greater than that of the fourth spring 684, the fourth spring 684 is compressed. And the support platform 13 will not move up and down after the insert 64 is inserted into the receiving groove 62, thereby strengthening the stability of the support platform 13 and preventing the bed frame formed by the support platform 13, the seat cushion 11, and the backrest 12 from changing. When it is necessary to change the shape, the backrest 12 is pulled up. At this time, under the action of the third spring 67, the U-shaped plate 65 is reset, which will drive the second spring 66 to reset. The insert 64 slowly gets out of the receiving groove 62. During this process, the fourth spring 684 will also reset to help the insert 64 get out of the receiving groove 62 so as to complete the change of the overall shape.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. Mobile rehabilitation training device, characterized in that: include, The seat cushion (11), the backrest (12) rotatably connected to the seat cushion (11), the support platform (13) on the left side of the seat cushion (11), the infusion rod (14) on the support platform (13), the three wheels (15) on the underside of the seat cushion (11), and the foot pedal (16) on the left wheel (15). A connecting mechanism is provided between the wheel (15) and the seat (11) and the support platform (13) to facilitate the connection between the wheel (15) and the seat (11) and the support platform (13); A lifting mechanism is provided on the upper side of the wheel (15) to allow the wheel (15) to leave the ground; An adjustment mechanism is located at the right end of the backrest (12) and is used to adjust the angle of the backrest (12); The slab leveling mechanism is located under the support platform (13) and the backrest (12), which enables the seat cushion (11), the backrest (12), and the support platform (13) to be level to form the bed frame; A locking mechanism is provided on the underside of the seat cushion (11) to prevent the support platform (13) from becoming loose.

2. The portable rehabilitation training device according to claim 1, characterized in that: The connecting mechanism includes a support frame (21) located on the outside of the left wheel (15). A central shaft (22) fixed to the wheel (15) is rotatably connected to the support frame (21). A main frame composed of a crossbeam (23) and two vertical beams (24) is provided on the upper side of the support frame (21). The support frame (21) is rotatably connected to the left vertical beam (24). A bearing frame (25) cooperating with the two rear wheels (15) is provided on the right end of the crossbeam (23). Two inclined beams (26) fixed to the bottom of the seat cushion (11) are fixedly connected to the crossbeam (23).

3. The portable rehabilitation training device according to claim 2, characterized in that: The support frame (25) includes a support beam (251), with a rotating shaft rotatably connected to both ends of the support beam (251), a rotating plate (252) fixedly connected to the rotating shaft, and a transmission shaft (253) fixed to the right end wheel (15) rotatably connected to the rotating plate (252).

4. The portable rehabilitation training device according to claim 3, characterized in that: The lifting mechanism includes a transfer frame (31) fixedly connected to the left and right ends of the crossbeam (23), an electric telescopic rod (32) fixedly connected to the transfer frame (31), and an anti-slip pad (33) fixedly connected to the telescopic end of the electric telescopic rod (32).

5. The portable rehabilitation training device according to claim 4, characterized in that: The adjustment mechanism includes a fixing plate (41) fixedly connected to the bottom of the seat cushion (11), and the backrest (12) has two inner grooves (42). The inner wall of the inner groove (42) is rotatably connected to a bracing plate (43) through a damping shaft. The fixing plate (41) has multiple slots (44) that cooperate with the bracing plate (43).

6. The portable rehabilitation training device according to claim 5, characterized in that: The leveling mechanism includes an L-shaped groove (51) provided on the left end vertical beam (24) and horizontal beam (23). The L-shaped groove (51) is provided with an internal thread (52). A screw (53) is threadedly connected to the internal thread (52). The upper end of the screw (53) is rotatably connected to the support platform (13). The support frame (21) is provided with a sliding groove (54). A sliding strip (55) that cooperates with the sliding groove (54) is fixedly connected to the support platform (13).

7. The portable rehabilitation training device according to claim 6, characterized in that: The vertical beam (24) at the right end is provided with a transmission component (56) that provides power for the lifting and lowering of the support platform (13). The transmission component (56) includes a through groove communicating with an L-shaped groove (51), a vertical rod rotatably connected in the through groove, a plurality of rings (561) fixedly connected in the L-shaped groove (51), a horizontal rod (562) rotatably connected on the rings (561), a receiving shaft (5611) rotatably connected in the L-shaped groove (51), a regular hexagonal column (5612) fixedly connected on the receiving shaft (5611), a regular hexagonal groove (5613) that mates with the regular hexagonal column (5612) on the screw (53), and a first bevel gear fixedly connected to both the receiving shaft (5611) and the lower end of the vertical rod. 563), both ends of the crossbar (562) are fixedly connected to a second bevel gear (564) that meshes with the first bevel gear (563), a U-shaped frame (565) is fixedly connected in the through groove, an L-shaped slide plate (566) is slidably connected in the U-shaped frame (565), the L-shaped slide plate (566) is elastically connected to the inner wall of the through groove by a first spring (567), the vertical bar is provided with a threaded groove (568), the L-shaped slide plate (566) is provided with a push rod (569) that cooperates with the threaded groove (568), and the backrest (12) is provided with a protrusion (5610) that cooperates with the L-shaped slide plate (566).

8. The portable rehabilitation training device according to claim 6, characterized in that: The locking mechanism includes a base plate (61) with the same width as the fixing plate (41) located at the bottom of the support platform (13). The base plate (61) is provided with a receiving groove (62). The fixing plate (41) is provided with an installation groove (63) that is directly opposite to the receiving groove (62). A plug (64) that cooperates with the receiving groove (62) is slidably connected in the installation groove (63). A U-shaped plate (65) is provided on the right side of the plug (64). The U-shaped plate (65) is elastically connected to the plug (64) through a second spring (66). The right end of the U-shaped plate (65) is elastically connected to the inner wall of the installation groove (63) through a third spring (67).

9. The portable rehabilitation training device according to claim 8, characterized in that: The inclined brace (43) is provided with an extrusion member (68) that provides power for the movement of the U-shaped plate (65). The extrusion member (68) includes a socket (681) provided on the mounting groove (63), and a top block (682) that mates with the socket (681) is fixedly connected to the inclined support plate (43). Both the top block (682) and the U-shaped plate (65) are provided with mutually cooperating inclined sides (683).

10. The portable rehabilitation training device according to claim 9, characterized in that: The weight of the backrest (12) is greater than the elasticity of the third spring (67), and a fourth spring (684) is provided in the mounting groove (63). The elasticity of the fourth spring (684) is less than that of the second spring (66).

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