Seat lifting device suitable for exercise rehabilitation apparatus
By introducing memory lifting and folding components into the seat lifting device, the technical problem of inconsistent heights caused by manual adjustment required by traditional seat lifting devices, which affects training effectiveness, has been solved, thus realizing the application of this technology in seat lifting devices for sports rehabilitation equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- LANZHOU JIAOTONG UNIV
- Filing Date
- 2026-02-12
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional chair height adjustment devices require patients to manually adjust the height each time they train, which affects training efficiency. Inconsistent heights may reduce the training effect. Furthermore, even when the chair is lowered to its lowest position, it still remains upright, forming a raised structure that increases the risk of patients falling.
It adopts a memory lifting component and a folding component. The memory lifting component realizes automatic height adjustment through a support plate and a limit block. The folding component automatically folds the back panel when the seat plate is lowered to the lowest position, reducing the size of the equipment.
This achieves high standardization in patient training, avoids repeated adjustments that could affect training effectiveness, and reduces the obstruction of protruding structures to patients' walking, thus lowering the risk of falls.
Smart Images
Figure CN122030734A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of rehabilitation assistive devices, and in particular to a seat lifting device suitable for sports rehabilitation equipment. Background Technology
[0002] Sports rehabilitation equipment is a medical device or fitness equipment specifically designed to assist the human body in restoring motor function, improving physical function, or preventing sports injuries. Its core objective is to promote tissue repair, enhance muscle strength, improve joint mobility, or rebuild neural control through scientific training. As a key component of sports rehabilitation equipment, the lifting device of the chair can be adapted to different patient body types and rehabilitation stages. The lifting chair can be used in conjunction with training equipment to achieve multi-directional movement and simulate complex movements in real-life scenarios.
[0003] Traditional chair height adjustment devices require patients to manually adjust the height each time they train. For patients who need long-term rehabilitation training, each adjustment may take several minutes, reducing training efficiency. Rehabilitation training has extremely high requirements for the repetitiveness and standardization of movements. If the chair height is different each time, the stress points of the patient's joints and the muscle exertion patterns will change, which may reduce the training effect or even cause secondary injuries. Furthermore, even when the chair is lowered to its lowest position, it still remains upright, forming a raised structure. When patients or their families walk around the equipment, they may accidentally bump into the backrest, resulting in falls or soft tissue injuries. Therefore, a chair height adjustment device suitable for sports rehabilitation equipment is proposed. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the fact that each adjustment may take several minutes, reducing training efficiency; if the seat height is different each time, the stress points of the patient's joints and the muscle exertion patterns will change, which may reduce the training effect or even cause secondary injury; and the fact that the seat remains upright even when it is lowered to its lowest position, forming a raised structure, which may cause patients or their families to accidentally bump into the backrest when walking around the equipment, resulting in falls or soft tissue injuries. Therefore, this invention proposes a seat lifting device suitable for sports rehabilitation equipment.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A seat lifting device suitable for sports rehabilitation equipment includes a base, a U-shaped plate mounted on the upper part of the base, an adjusting rod slidably disposed on the inner side of the U-shaped plate, a seat plate mounted on the upper part of the adjusting rod, an adjusting plate rotatably connected to the upper part of the seat plate, and a memory lifting assembly disposed on the U-shaped plate. The memory lifting assembly includes a support plate slidably disposed on the outer side of the U-shaped plate, a limiting block slidably disposed on the inner side of the support plate, a first fixing groove opened on the side of the adjusting rod, and a driving unit disposed on the U-shaped plate for driving the support plate to move. This eliminates the need for repeated height adjustments and ensures [the desired height is maintained]. To standardize patient training and avoid inconsistent heights affecting training effectiveness during multiple training sessions, a folding assembly is provided on both the guide plate and the seat plate. The folding assembly includes a movable rod that slides inside the adjusting rod, a movable plate mounted on the upper part of the movable rod, a limiting plate that slides on the upper part of the seat plate, a second fixing groove opened at the bottom of the backrest, and a transmission unit on the inner side of the seat plate for moving the limiting plate. When the seat plate is lowered to its lowest position, the backrest can automatically fold to fit against the seat plate. Automatic folding reduces the size of the equipment and prevents the protruding backrest from affecting the patient's walking and causing bumps.
[0006] The above technical solution further includes: The driving unit includes an adjusting plate mounted on the side of a U-shaped plate, a threaded rod rotatably connected to the inner side of the adjusting plate, a sliding block slidably disposed on the inner side of the adjusting plate, the sliding block being threadedly connected to the threaded rod, and a support plate mounted on the outer side of the sliding block. The force generated when the threaded rod rotates drives the sliding block to move along the adjusting plate.
[0007] A handle is rotatably connected to the inner side of the adjusting plate. A second bevel gear is installed at one end of the handle near the threaded rod, and a first bevel gear is installed on the outer side of the threaded rod. The first bevel gear and the second bevel gear are threaded together. When the handle is rotated, the threaded rod is driven to rotate through the second bevel gear and the first bevel gear.
[0008] The support plate has a square groove on its inner side, and a first telescopic rod is installed on the inner side of the square groove. The end of the first telescopic rod is fixedly connected to a limiting block. A round rod is installed on the side of the limiting block near the first telescopic rod, and the round rod is movably connected to the support plate.
[0009] The cross-section of the limiting block is trapezoidal, and the size of the opening of the first fixing groove is adapted to the size of the limiting block.
[0010] A support rod is installed on the inner side of the adjusting rod, and the movable rod is slidably disposed on the inner side of the support rod. A second telescopic rod is installed between the movable rod and the support rod.
[0011] The inner side of the seat plate is provided with an L-shaped groove, and the movable plate is slidably disposed on the inner side of the L-shaped groove.
[0012] The transmission unit includes a first rack mounted on the upper part of a movable plate, a gear rotatably connected to the inner side of the L-shaped groove, and a second rack slidably disposed on the inner side of the L-shaped groove. Both the second rack and the first rack mesh with the gear. The limiting plate is mounted on the upper part of the second rack. When the movable plate moves upward, the second rack can be driven to move downward through the first rack and the gear.
[0013] The size of the second fixing groove opening is adapted to the size of the limiting plate.
[0014] Support blocks are symmetrically installed on the upper part of the seat plate. A rotating rod is rotatably connected to the inner side of the two support blocks. The backrest is installed on the outer side of the rotating rod. Torsion springs are installed on the inner side of the two support blocks. The end of the torsion spring away from the support block is fixedly connected to the backrest. After the backrest is released, the torsion spring in the contracted state drives the backrest to rotate and fit against the seat plate.
[0015] The present invention has the following beneficial effects: 1. In this invention, by setting a memory adjustment component, when the patient finds the required height, the height can be quickly raised to the previously required height through the support plate and limit block during subsequent use, without the need for repeated height adjustments. This ensures the standardization of patient training and avoids the impact of inconsistent heights on training effectiveness during multiple training sessions.
[0016] 2. In this invention, by setting a folding component, when the seat is lowered to its lowest position, the backrest can be automatically folded to fit against the seat. The automatic folding can reduce the size of the device and prevent the protruding backrest from affecting the patient's walking and causing bumps or collisions. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the first sectional view of the overall side of a seat lifting device suitable for sports rehabilitation equipment proposed in this invention; Figure 2 This is a schematic diagram of the second sectional view of the overall head side in this invention; Figure 3 This is a schematic diagram of the overall structure of the present invention; Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 for Figure 1 Enlarged schematic diagram of the structure at point B; Figure 6 for Figure 1 Enlarged schematic diagram of the structure at point C; Figure 7 for Figure 2 Enlarged schematic diagram of the structure at point D; Figure 8 for Figure 2Enlarged schematic diagram of the structure at point E in the middle; Figure 9 for Figure 2 Enlarged schematic diagram of the structure at point F.
[0018] In the diagram: 1. Base; 2. U-shaped plate; 3. Adjusting rod; 4. Seat plate; 5. Adjusting plate; 6. Threaded rod; 7. First bevel gear; 8. Handle; 9. Second bevel gear; 10. Sliding block; 11. Support plate; 12. Square groove; 13. First telescopic rod; 14. Limiting block; 15. First fixing groove; 16. Round rod; 17. Support block; 18. Rotating rod; 19. Backing plate; 20. Torsion spring; 21. Support rod; 22. Movable rod; 23. Second telescopic rod; 24. L-shaped groove; 25. Movable plate; 26. First rack; 27. Gear; 28. Second rack; 29. Limiting plate; 30. Second fixing groove. Detailed Implementation
[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] Example 1 like Figure 1 - Figure 9 As shown, the present invention proposes a seat lifting device suitable for sports rehabilitation equipment, comprising a base 1, a U-shaped plate 2 mounted on the upper part of the base 1, an adjusting rod 3 slidably disposed on the inner side of the U-shaped plate 2, a seat plate 4 mounted on the upper part of the adjusting rod 3, an adjusting plate 5 rotatably connected to the upper part of the seat plate 4, and a memory lifting assembly disposed on the U-shaped plate 2. The memory lifting assembly includes a support plate 11 slidably disposed on the outer side of the U-shaped plate 2, a limiting block 14 slidably disposed on the inner side of the support plate 11, a first fixing groove 15 opened on the side of the adjusting rod 3, and a driving unit disposed on the U-shaped plate 2 for driving the support plate 11 to move. This eliminates the need for repeated height adjustments and ensures [the desired height is maintained]. To standardize patient training and avoid inconsistent heights affecting training effectiveness during multiple training sessions, a folding assembly is provided on both the U-shaped plate 2 and the seat plate 4. The folding assembly includes a movable rod 22 that slides inside the adjusting rod 3, a movable plate 25 mounted on the upper part of the movable rod 22, a limiting plate 29 that slides on the upper part of the seat plate 4, a second fixing groove 30 opened at the bottom of the backrest 19, and a transmission unit provided inside the seat plate 4 for moving the limiting plate 29. When the seat plate 4 is lowered to its lowest position, the backrest 19 can be automatically folded to fit against the seat plate 4. Automatic folding can reduce the size of the equipment and prevent the protruding backrest 19 from affecting the patient's walking and causing bumps.
[0021] The drive unit includes an adjustment plate 5 mounted on the side of the spiral plate 2, a threaded rod 6 rotatably connected to the inner side of the adjustment plate 5, a sliding block 10 slidably disposed on the inner side of the adjustment plate 5, the sliding block 10 being threadedly connected to the threaded rod 6, and a support plate 11 mounted on the outer side of the sliding block 10. The force generated when the threaded rod 6 rotates drives the sliding block 10 to move along the adjustment plate 5.
[0022] A handle 8 is rotatably connected to the inner side of the adjusting plate 5. A second bevel gear 9 is installed at one end of the handle 8 near the threaded rod 6. A first bevel gear 7 is installed on the outer side of the threaded rod 6. The first bevel gear 7 and the second bevel gear 9 are threadedly connected. When the handle 8 is rotated, the threaded rod 6 is driven to rotate through the second bevel gear 9 and the first bevel gear 7.
[0023] A square groove 12 is provided on the inner side of the support plate 11. A first telescopic rod 13 is installed on the inner side of the square groove 12. The end of the first telescopic rod 13 is fixedly connected to the limiting block 14. A round rod 16 is installed on the side of the limiting block 14 near the first telescopic rod 13. The round rod 16 is movably connected to the support plate 11.
[0024] The cross-section of the limiting block 14 is trapezoidal, and the size of the opening of the first fixing groove 15 is adapted to the size of the limiting block 14.
[0025] In this embodiment, when the seat plate 4 needs to be raised for rehabilitation training, the handle 8 can be rotated. When the handle 8 is rotated, the threaded rod 6 is rotated through the second bevel gear 9 and the first bevel gear 7. The force generated by the rotation of the threaded rod 6 causes the sliding block 10 to move upward along the adjusting plate 5, and at the same time, it causes the support plate 11 and the limiting block 14 to move upward. When the limiting block 14 moves upward, it causes the adjusting rod 3 and the seat plate 4 to rise, thereby adjusting the seat plate 4 to a suitable height for the user's rehabilitation training. When the training is completed, the round rod 16 can be pulled. The round rod 16 causes the limiting block 14 to move into the inside of the square groove 12, and at the same time, the limiting block 14 moves into the first fixed groove 15. On the outside, release the lock on the adjusting rod 3. At this time, the first telescopic rod 13 retracts, and the adjusting rod 3 moves to the bottom of the U-shaped plate 2, thereby lowering the seat plate 4 to its lowest position. At the same time, the position of the support plate 11 remains unchanged. When the seat plate 4 is needed for rehabilitation training next time, the adjusting rod 3 and the seat plate 4 can be pulled directly to raise them. When the positions of the first fixing groove 15 and the limiting block 14 correspond, the first telescopic rod 13, which is in the retracted state, resets and drives the limiting block 14 to insert into the inside of the first fixing groove 15. At this time, the seat plate 4 can be directly adjusted to the height used last time, realizing memory adjustment.
[0026] Example 2 like Figure 1 - Figure 9As shown, based on Embodiment 1, the system includes a base 1, a U-shaped plate 2 mounted on the upper part of the base 1, an adjusting rod 3 slidably disposed on the inner side of the U-shaped plate 2, a seat plate 4 mounted on the upper part of the adjusting rod 3, an adjusting plate 5 rotatably connected to the upper part of the seat plate 4, and a memory lifting assembly disposed on the U-shaped plate 2. The memory lifting assembly includes a support plate 11 slidably disposed on the outer side of the U-shaped plate 2, a limiting block 14 slidably disposed on the inner side of the support plate 11, a first fixing groove 15 opened on the side of the adjusting rod 3, and a driving unit disposed on the U-shaped plate 2 for driving the support plate 11 to move. This eliminates the need for repeated height adjustments and ensures the accuracy of patient training. To standardize the height and avoid inconsistent heights during multiple training sessions that could affect training effectiveness, a folding assembly is provided on both the U-shaped plate 2 and the seat plate 4. The folding assembly includes a movable rod 22 that slides inside the adjusting rod 3, a movable plate 25 mounted on the upper part of the movable rod 22, a limiting plate 29 that slides on the upper part of the seat plate 4, a second fixing groove 30 opened at the bottom of the backrest 19, and a transmission unit provided inside the seat plate 4 for moving the limiting plate 29. When the seat plate 4 is lowered to its lowest position, the backrest 19 can be automatically folded to fit against the seat plate 4. Automatic folding can reduce the size of the equipment and prevent the protruding backrest 19 from affecting the patient's walking and causing bumps or collisions.
[0027] The drive unit includes an adjustment plate 5 mounted on the side of the spiral plate 2, a threaded rod 6 rotatably connected to the inner side of the adjustment plate 5, a sliding block 10 slidably disposed on the inner side of the adjustment plate 5, the sliding block 10 being threadedly connected to the threaded rod 6, and a support plate 11 mounted on the outer side of the sliding block 10. The force generated when the threaded rod 6 rotates drives the sliding block 10 to move along the adjustment plate 5.
[0028] A handle 8 is rotatably connected to the inner side of the adjusting plate 5. A second bevel gear 9 is installed at one end of the handle 8 near the threaded rod 6. A first bevel gear 7 is installed on the outer side of the threaded rod 6. The first bevel gear 7 and the second bevel gear 9 are threadedly connected. When the handle 8 is rotated, the threaded rod 6 is driven to rotate through the second bevel gear 9 and the first bevel gear 7.
[0029] A square groove 12 is provided on the inner side of the support plate 11. A first telescopic rod 13 is installed on the inner side of the square groove 12. The end of the first telescopic rod 13 is fixedly connected to the limiting block 14. A round rod 16 is installed on the side of the limiting block 14 near the first telescopic rod 13. The round rod 16 is movably connected to the support plate 11.
[0030] The cross-section of the limiting block 14 is trapezoidal, and the size of the opening of the first fixing groove 15 is adapted to the size of the limiting block 14.
[0031] In this embodiment, when the seat plate 4 is not used, and the adjusting rod 3 is moved to the bottom of the U-shaped plate 2, the movable rod 22 is squeezed by the bottom of the inner side of the U-shaped plate 2. At this time, the second telescopic rod 23 retracts and moves upward after being squeezed, which in turn drives the movable plate 25 to move upward. Since the second rack 28 and the first rack 26 are both meshed with the gear 27, when the movable plate 25 moves upward, it can drive the second rack 28 to move downward through the first rack 26 and the gear 27. At the same time, it drives the limiting plate 29 to move to the outside of the second fixing groove 30, releasing the lock on the back plate 19. At this time, the torsion spring 20, which is in the retracted state, returns to its original state and drives the rotating rod 18 to rotate. When the rotating rod 18 rotates, it drives the back plate 19 to rotate and fit against the seat plate 4. The back plate 19 can be automatically folded when the seat plate 4 is lowered to its lowest position, reducing space occupation.
[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A seat lifting device suitable for sports rehabilitation equipment, comprising a base (1), characterized in that, A spiral plate (2) is installed on the upper part of the base (1). An adjusting rod (3) is slidably arranged on the inner side of the spiral plate (2). A seat plate (4) is installed on the upper part of the adjusting rod (3). An adjusting plate (5) is rotatably connected to the upper part of the seat plate (4). A memory lifting assembly is provided on the spiral plate (2). The memory lifting assembly includes a support plate (11) slidably arranged on the outer side of the spiral plate (2), a limiting block (14) slidably arranged on the inner side of the support plate (11), and a first fixing groove (15) opened on the side of the adjusting rod (3). 5) A drive unit for moving the support plate (11) is provided on the folding plate (2). The folding plate (2) and the seat plate (4) are provided with a folding assembly. The folding assembly includes a movable rod (22) that is slidably provided inside the adjusting rod (3), a movable plate (25) installed on the upper part of the movable rod (22), a limiting plate (29) that is slidably provided on the upper part of the seat plate (4), a second fixing groove (30) opened at the bottom of the back plate (19), and a transmission unit provided inside the seat plate (4) for moving the limiting plate (29).
2. The seat lifting device for sports rehabilitation equipment according to claim 1, characterized in that, The drive unit includes an adjustment plate (5) mounted on the side of the spiral plate (2), a threaded rod (6) rotatably connected to the inner side of the adjustment plate (5), a sliding block (10) slidably disposed on the inner side of the adjustment plate (5), the sliding block (10) and the threaded rod (6) being threadedly connected, and a support plate (11) mounted on the outer side of the sliding block (10).
3. A seat lifting device suitable for sports rehabilitation equipment according to claim 2, characterized in that, The inner side of the adjusting plate (5) is rotatably connected to a handle (8), and a second bevel gear (9) is installed on one end of the handle (8) near the threaded rod (6). A first bevel gear (7) is installed on the outer side of the threaded rod (6), and the first bevel gear (7) and the second bevel gear (9) are threaded together.
4. A seat lifting device suitable for sports rehabilitation equipment according to claim 1, characterized in that, The inner side of the support plate (11) is provided with a square groove (12), and a first telescopic rod (13) is installed on the inner side of the square groove (12). The end of the first telescopic rod (13) is fixedly connected to the limiting block (14). A round rod (16) is installed on the side of the limiting block (14) near the first telescopic rod (13). The round rod (16) is movably connected to the support plate (11).
5. A seat lifting device suitable for sports rehabilitation equipment according to claim 4, characterized in that, The cross-section of the limiting block (14) is trapezoidal, and the size of the opening of the first fixing groove (15) is adapted to the size of the limiting block (14).
6. A seat lifting device suitable for sports rehabilitation equipment according to claim 1, characterized in that, A support rod (21) is installed on the inner side of the adjusting rod (3), and the movable rod (22) is slidably disposed on the inner side of the support rod (21). A second telescopic rod (23) is installed between the movable rod (22) and the support rod (21).
7. A seat lifting device suitable for sports rehabilitation equipment according to claim 1, characterized in that, The inner side of the seat plate (4) is provided with an L-shaped groove (24), and the movable plate (25) is slidably disposed on the inner side of the L-shaped groove (24).
8. A seat lifting device suitable for sports rehabilitation equipment according to claim 1, characterized in that, The transmission unit includes a first rack (26) mounted on the upper part of a movable plate (25), a gear (27) rotatably connected to the inner side of an L-shaped groove (24), a second rack (28) slidably disposed on the inner side of an L-shaped groove (24), both the second rack (28) and the first rack (26) meshing with the gear (27), and a limiting plate (29) mounted on the upper part of the second rack (28).
9. A seat lifting device suitable for sports rehabilitation equipment according to claim 1, characterized in that, The size of the opening of the second fixing groove (30) is adapted to the size of the limiting plate (29).
10. A seat lifting device suitable for sports rehabilitation equipment according to claim 1, characterized in that, Support blocks (17) are symmetrically installed on the upper part of the seat plate (4). The inner sides of the two support blocks (17) are rotatably connected to a rotating rod (18). The back plate (19) is installed on the outer side of the rotating rod (18). Torsion springs (20) are installed on the inner sides of the two support blocks (17). The end of the torsion spring (20) away from the support block (17) is fixedly connected to the back plate (19).