Semi-automatic treading type hand supporting frame
By designing a semi-automatic foot-operated hand support frame, the height of the hand support frame is automatically adjusted and fixed using a foot pedal and rack mechanism, which solves the problem of inconvenience in manual adjustment of existing hand support frames and improves the ease of use and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-04-03
AI Technical Summary
The existing armrest height adjustment relies on manual operation, which is inconvenient, especially during medical rehabilitation and surgery, as patients or doctors cannot adjust the height themselves or at the same time.
A semi-automatic foot-operated hand support was designed, which automatically adjusts the height of the hand support by driving a rack and pinion mechanism through a foot pedal, and is equipped with a fixing system to ensure that the hand support is kept in the right position.
It enables convenient, continuous adjustment and stable fixation of the handrest height, improving ease of use and comfort, and adapting to the needs of different users.
Smart Images

Figure CN224070593U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical support technology, specifically relating to a semi-automatic foot-operated support. Background Technology
[0002] A hand support is an assistive device used to support or stabilize the arm. Its core function is to provide stable support, ensuring the stability and safety of the arm. In the field of medical rehabilitation, hand supports are widely used in rehabilitation training, physical therapy, and sports training to help patients or users successfully complete standing, walking, and specific movements, effectively preventing the arm from drooping due to insufficient strength or pain, thereby protecting joints and muscles from further injury. Hand supports are primarily used in operating rooms to stabilize the patient's arm during surgery, ensuring surgical precision and patient comfort, and safeguarding the smoothness and safety of the surgical procedure.
[0003] However, most arm supports currently on the market rely on manual height adjustment, which brings many inconveniences during medical rehabilitation and surgery. Patients undergoing rehabilitation often find it difficult to adjust the height independently. Furthermore, in the stressful surgical environment, doctors cannot constantly monitor the arm support's height to ensure the arm is always in the optimal surgical position.
[0004] The patent with publication number CN103750642A provides a lifting and locking device for the legs of student desks and chairs. The device can conveniently raise and lower the desks and chairs, but its operation still relies on manual operation, which is obviously not practical in medical rehabilitation and surgical scenarios. In particular, when patients or doctors cannot use their hands freely, its limitations are particularly prominent, which greatly limits the scope of application of the patent. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a semi-automatic foot-operated hand support, which can conveniently adjust the height of the hand support by stepping on it.
[0006] The above-mentioned objective of this utility model is achieved through the following technical solution:
[0007] This utility model provides a semi-automatic foot-operated hand support, including a support system, a power system, and a fixing system. The support system includes a cylinder, a support column, a bottom support, a hand support plate, and a rack. The cylinder is fixedly connected to the bottom support. The support column is slidably disposed inside the cylinder, and the hand support plate is fixedly connected to the top of the support column. The rack is disposed on the support column. The power system includes a second limiting plate, a rotating rod, a rocker, and a power component. An opening groove a is provided on the upper part of the cylinder at a position corresponding to the rack. A second limiting plate is provided on each side of the opening groove a, and a rotating rod is connected between the two second limiting plates. The rocker is connected to the rotating rod. A power component is provided at one end of the rocker, and the other end of the rocker passes through the opening groove a and engages with the rack. The power component is used to drive the rocker to rotate around the rotating rod, thereby driving the support column to move through the rack. The fixing system is connected to the support system and is used to fix and lock the rising position of the support column.
[0008] According to one embodiment of the present invention, the bottom support includes a base and a support leg, a cylinder is fixedly connected to the upper surface of the base, and a support leg is fixedly connected to the lower surface of the base.
[0009] According to one embodiment of the present invention, the power component includes a pull bar, a grooved block, a connecting plate, a foot pedal, and a round rod. A grooved block is also fixedly connected to the lower outer surface of the cylinder, and the grooved block corresponds to the upper and lower positions of the rocker. One end of the connecting plate is rotatably connected to the grooved block, and the other end of the connecting plate is fixedly connected to the foot pedal. A round rod is connected to the side of the rocker away from the rack. One end of the pull bar is connected to the round rod, and the other end of the pull bar is rotatably connected to the connecting plate.
[0010] According to one embodiment of the present invention, a support plate is also fixedly connected to one side of the connecting plate, and a heavy ball is fixedly provided at the end of the support plate away from the foot pedal.
[0011] According to one embodiment of the present invention, the fixing system includes a spring, a first limiting plate, a pull ring, a vertical plate, a slot, a rectangular box, a pull rod, a locking block, and a push plate. A vertical plate is also fixedly embedded on the support column. A slot is provided on the vertical plate. An opening groove b is provided at the position corresponding to the slot on the upper part of the cylinder. A first limiting plate is provided on each side of the opening groove b. A rectangular box is fixedly connected between the two first limiting plates. A push plate is slidably provided inside the rectangular box. A pull rod and a locking block are fixedly connected to each side of the push plate. The end of the pull rod away from the push plate passes through the rectangular box and is fixedly connected to the pull ring. The end of the locking block away from the push plate passes through the rectangular box and is engaged with the slot. The spring is sleeved on the pull rod inside the rectangular box. One end of the spring is fixedly connected to the surface of the push plate, and the other end of the spring is fixedly connected to the inner wall of the rectangular box.
[0012] According to one embodiment of the present invention, the end of the card block that engages with the card slot is provided with a downward inclined surface. When the support column rises, the card block moves away from the support column through the relative movement of the inclined surface and the card slot.
[0013] The advantages of this utility model compared with the existing technical solutions are:
[0014] 1. This utility model allows for easy adjustment of the hand support height simply by pressing the foot pedal, meeting the surgical needs of each doctor. This utility model greatly simplifies the adjustment process, thus significantly improving ease of use and comfort.
[0015] 2. This utility model also includes a weighted ball. After the user lifts the support column to the desired height using the foot pedal, the weighted ball helps the foot pedal smoothly return to its initial state. This design not only ensures the continuity of operation but also allows the user to repeatedly and easily lift the support column.
[0016] 3. This utility model is also equipped with a fixing system. When the user believes that the hand support has been raised to the ideal height, the fixing system can firmly fix the support column without any operation, ensuring that the hand support is kept at the appropriate height and providing stable and reliable support for the user.
[0017] 4. This utility model also considers the user's need to adjust the height of the handrail. Simply pull the ring gently to quickly release the fixing system from the support column. Then, pressing down on the foot pedal again will allow the support column to fall smoothly under gravity, providing great convenience for the user.
[0018] 5. This utility model adopts a mechanical structure design to realize convenient adjustment of the height of the hand support board, and has high safety, high reliability and easy maintenance. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0020] Figure 2 This is a bottom view of the structure of this utility model;
[0021] Figure 3 This is a structural disassembly diagram of the present invention;
[0022] Figure 4 This is a schematic diagram of the fixing system of this utility model;
[0023] In the diagram: 1. Base; 2. Cylinder; 3. Spring; 4. Support column; 5. Hand support plate; 6. First limiting plate; 7. Second limiting plate; 8. Rocker; 9. Pull bar; 10. Groove block; 11. Connecting plate; 12. Support plate; 13. Heavy ball; 14. Foot pedal; 15. Support leg; 16. Pull ring; 17. Rack; 18. Vertical plate; 19. Slot; 20. Rectangular box; 21. Pull rod; 22. Rotating rod; 23. Round rod; 24. Locking block; 25. Push plate. Detailed Implementation
[0024] The present invention will now be described in detail through specific embodiments, but this does not limit the scope of protection of the present invention.
[0025] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0027] Example 1
[0028] like Figure 1-4 As shown, this embodiment provides a semi-automatic foot-operated hand support, including a support system, a power system, and a fixing system. The support system is the main frame of the hand support, the power system is used to provide power for changing the height of the hand support, and the fixing system can maintain the height of the hand support after it is raised.
[0029] A semi-automatic foot-operated hand support includes a base 1, a cylindrical tube 2 fixedly mounted on the base 1, and four support legs 15 fixedly mounted on the base 1. A support column 4 is slidably mounted inside the cylindrical tube 2, and a hand support plate 5 is fixedly connected to the top of the support column 4. The hand support plate 5 can be a leather pad or a hard board. A rack 17 is provided on the support column 4. An opening groove a is provided on the upper part of the cylindrical tube 2 at a position corresponding to the rack 17. A second limiting plate 7 is provided on each side of the opening groove a, and the two second limiting plates 7 are fixedly connected together. A rotating rod 22 is provided, and a rocker arm 8 is rotatably connected to the rotating rod 22. One end of the rocker arm 8 meshes with a rack 17, and the other end of the rocker arm 8 is fixedly connected to a round rod 23. A grooved block 10 is also fixedly connected to the lower outer surface of the cylinder 2. The grooved block 10 corresponds vertically to the rocker arm 8. One end of a connecting plate 11 is rotatably connected to the grooved block 10, and the other end of the connecting plate 11 is fixedly connected to a foot pedal 14. A support plate 12 is also fixedly connected to one side of the connecting plate 11, and a heavy ball 13 is fixedly provided at the end of the support plate 12 away from the foot pedal 14. One end of a pull bar 9 is rotatably connected to the round rod 23, and the other end of the pull bar 9 is rotatably connected to the connecting plate 11, thereby establishing a linkage between the foot pedal 14 and the rocker arm 8.
[0030] A vertical plate 18 is also fixedly embedded on the support column 4. A slot 19 is provided on the vertical plate 18. An opening slot b is provided on the upper part of the cylinder 2 at the position corresponding to the slot 19. A first limiting plate 6 is provided on each side of the opening slot b. A rectangular box 20 is fixedly connected between the first limiting plates 6 on both sides. A push plate 25 is slidably provided inside the rectangular box 20. A pull rod 21 and a locking block 24 are fixedly connected on both sides of the push plate 25 respectively. The end of the pull rod 21 away from the push plate 25 passes through the rectangular box 20 and is fixedly connected to the pull ring 16. The end of the locking block 24 away from the push plate 25 passes through the rectangular box 20 and engages with the slot 19. The end of the locking block 24 that engages with the slot 19 has a downward slope. A spring 3 is sleeved on the pull rod 21 inside the rectangular box 20. One end of the spring 3 is fixedly connected to the surface of the push plate 25, and the other end of the spring 3 is fixedly connected to the inner wall of the rectangular box 20.
[0031] Example 2
[0032] The difference between this embodiment and Embodiment 1 is:
[0033] A rotating rod 22 is rotatably connected between the two second limiting plates 7, and the rocker plate 8 is fixedly connected to the rotating rod 22; one end of the rocker plate 8 is rotatably connected to the round rod 23, and the pull bar 9 is fixedly connected to the round rod 23.
[0034] A semi-automatic foot-operated hand support includes a base 1, a cylindrical tube 2 fixedly mounted on the base 1, and four support legs 15 fixedly mounted on the base 1. A support column 4 is slidably mounted inside the cylindrical tube 2, and a hand support plate 5 is fixedly connected to the top of the support column 4. The hand support plate 5 can be a leather pad or a hard board. A rack 17 is provided on the support column 4. An opening groove a is provided on the upper part of the cylindrical tube 2 at a position corresponding to the rack 17. A second limiting plate 7 is provided on each side of the opening groove a, and the two second limiting plates 7 are rotatably connected. A rotating rod 22 is provided, and a rocker arm 8 is fixedly connected to the rotating rod 22. One end of the rocker arm 8 meshes with a rack 17, and the other end of the rocker arm 8 is rotatably connected to a round rod 23. A grooved block 10 is also fixedly connected to the lower outer surface of the cylinder 2, and the grooved block 10 corresponds vertically to the rocker arm 8. One end of a connecting plate 11 is rotatably connected to the grooved block 10, and the other end of the connecting plate 11 is fixedly connected to a foot pedal 14. A support plate 12 is also fixedly connected to one side of the connecting plate 11, and a heavy ball 13 is fixedly provided at the end of the support plate 12 away from the foot pedal 14. One end of a pull bar 9 is fixedly connected to the round rod 23, and the other end of the pull bar 9 is rotatably connected to the connecting plate 11, thereby establishing a linkage between the foot pedal 14 and the rocker arm 8.
[0035] A vertical plate 18 is also fixedly embedded on the support column 4. A slot 19 is provided on the vertical plate 18. An opening slot b is provided on the upper part of the cylinder 2 at the position corresponding to the slot 19. A first limiting plate 6 is provided on each side of the opening slot b. A rectangular box 20 is fixedly connected between the first limiting plates 6 on both sides. A push plate 25 is slidably provided inside the rectangular box 20. A pull rod 21 and a locking block 24 are fixedly connected on both sides of the push plate 25 respectively. The end of the pull rod 21 away from the push plate 25 passes through the rectangular box 20 and is fixedly connected to the pull ring 16. The end of the locking block 24 away from the push plate 25 passes through the rectangular box 20 and engages with the slot 19. The end of the locking block 24 that engages with the slot 19 has a downward slope. A spring 3 is sleeved on the pull rod 21 inside the rectangular box 20. One end of the spring 3 is fixedly connected to the surface of the push plate 25, and the other end of the spring 3 is fixedly connected to the inner wall of the rectangular box 20.
[0036] Example 3
[0037] This embodiment describes the specific working process of raising and lowering the handrail 5.
[0038] When the support plate 5 needs to be raised, the foot pedal 14 can be pressed. At this time, the connecting plate 11 rotates downward around the groove block 10 under the action of the foot pedal 14. The connecting plate 11 drives the heavy ball 13 to rise through the support plate 12. The connecting plate 11 also drives the rocker 8 to rotate around the rotating rod 22 through the pull bar 9. The end of the rocker 8 near the support column 4 moves the support column 4 upward through the rack 17. During the upward movement of the support column 4, the inclined surface of the slot 19 and the locking block 24 interact. The locking block 24 gradually moves away from the support column 4 under the action of the slot 19 through the inclined surface, and compresses the spring 3 through the push plate 25. After the support column 4 has risen, the spring 3 pushes the push plate 25, which in turn pushes the locking block 24 into the slot 19, thereby fixing the support column 4. At this point, the end of the rocker 8 near the support column 4 disengages from the rack 17, while the heavy ball 13, under the influence of gravity, drives the connecting plate 11 to rotate upwards around the groove block 10 via the support plate 12, causing the foot pedal 14 to return to its initial position. Furthermore, the heavy ball 13, through the pull bar 9, drives the rocker 8 to rotate around the rotating rod 22, and the end of the rocker 8 near the support column 4 re-engages into the rack 17. At this point, the support column 4 drives the hand support plate 5 to rise steadily a certain distance. By repeatedly pressing the foot pedal 14, the hand support plate 5 can be raised to the desired position.
[0039] In general, by pressing the foot pedal 14, the rocker arm 8 can pry the support column 4 upward. During the upward movement, the support column 4 compresses the locking block 24, and the heavy ball 13 is also driven upward by the foot pedal 14. When the rocker arm 8 reaches its limit, it disengages from the rack 17 on the support column 4. At this time, the spring 3 pushes the push plate 25, which in turn pushes the locking block 24 into the slot 19, thus fixing the support column 4. The rocker arm 8 is then driven back to its initial position by the action of the heavy ball 13. Since the support column 4 has risen a certain distance and is now fixed, the rocker arm 8 is now engaged with the next slot 17.
[0040] When the support plate 5 needs to be lowered, the foot pedal 14 can be pressed and the pull ring 16 pulled. At this time, the connecting plate 11 rotates downward around the groove block 10 under the action of the foot pedal 14. The connecting plate 11 drives the heavy ball 13 to rise through the support plate 12, and the connecting plate 11 drives the rocker 8 to rotate around the rotating rod 22 through the pull bar 9. The end of the rocker 8 near the support column 4 moves the support column 4 upward through the rack 17. At this time, the locking block 24 gradually disengages from the slot 19 during the rise of the support column 4, and compresses the spring 3 through the push plate 25. Unlike the lifting process, after the support column 4 has risen, because the pull ring 16 is pulled, the spring 3 cannot push the push plate 25, and therefore cannot make the locking block 24 engage with the slot 19 to fix the support column 4. Also, because the end of the rocker 8 near the support column 4 has disengaged from the rack 17, the support column 4 falls under the action of gravity. Under the action of the support column 4, the support plate 5 also descends.
[0041] The embodiments described above are merely preferred embodiments of this utility model, and not all feasible embodiments of this utility model. For those skilled in the art, any obvious modifications made without departing from the principles and spirit of this utility model should be considered to be included within the scope of protection of the claims of this utility model.
Claims
1. A semi-automatic kick stand, characterized by, The utility model provides a support system, power system, fixed system, support system includes cylinder (2), support column (4), bottom support, hand plate (5), rack (17), cylinder (2) is fixedly connected with bottom support, support column (4) is arranged in the cylinder (2) and slides, support column (4) top end fixedly connected with hand plate (5), support column (4) is equipped with rack (17), power system includes second limit board (7), rotary rod (22), warped board (8), power component, the upper portion of cylinder (2) is equipped with an open slot a with rack (17) corresponding position, and the both sides of open slot a are equipped with a second limit board (7), and the second limit board (7) between both sides is connected with rotary rod (22);Warped board (8) is connected with rotary rod (22), and one end of warped board (8) is provided with power component, and the other end of warped board (8) passes through open slot a and is engaged with rack (17), and power component is used to drive warped board (8) and rotates around rotary rod (22), and then moves support column (4) through rack (17), and fixed system is connected with support system and is used for fixed locking the rising position of support column (4).
2. A semi-automatic foot-activated kickstand according to claim 1, wherein, The bottom support includes a base (1) and support legs (15), the upper surface of the base (1) is fixedly connected with the cylinder (2), and the lower surface of the base (1) is fixedly connected with the support legs (15).
3. The semi-automatic foot-deployable kickstand frame of claim 1, wherein, The power component includes a stay (9), a groove block (10), a connecting plate (11), a foot plate (14), and a round rod (23), the lower part of the outer surface of the cylinder (2) is further fixedly connected with the groove block (10), the groove block (10) corresponds to the upper and lower positions of the warped board (8); one end of the connecting plate (11) is rotatably connected with the groove block (10), the other end of the connecting plate (11) is fixedly connected with the foot plate (14), the side of the warped board (8) away from the rack (17) is connected with the round rod (23), one end of the stay (9) is connected with the round rod (23), and the other end of the stay (9) is rotatably connected with the connecting plate (11).
4. A semi-automatic foot-activated kickstand according to claim 3, wherein, One side of the connecting plate (11) is further fixedly connected with a support plate (12), and one end of the support plate (12) away from the foot plate (14) is fixedly provided with a heavy ball (13).
5. The semi-automatic foot-deployable kickstand frame of claim 1, wherein, The fixing system comprises a spring (3), a first limiting plate (6), a pull ring (16), a vertical plate (18), a clamping groove (19), a rectangular box (20), a pull rod (21), a clamping block (24), a push plate (25), and a support column (4) is further fixed with the vertical plate (18) embedded therein, the vertical plate (18) is provided with the clamping groove (19), the upper portion of the cylinder (2) is provided with an open groove b at a position corresponding to the clamping groove (19), each of the two sides of the open groove b is provided with the first limiting plate (6), the two first limiting plates (6) are fixedly connected with the rectangular box (20), the push plate (25) is slidably arranged in the rectangular box (20), the two sides of the push plate (25) are fixedly connected with the pull rod (21) and the clamping block (24) respectively, one end of the pull rod (21) away from the push plate (25) penetrates out of the rectangular box (20) and is fixedly connected with the pull ring (16), one end of the clamping block (24) away from the push plate (25) penetrates out of the rectangular box (20) and is clamped with the clamping groove (19), the spring (3) is sleeved on the pull rod (21) in the rectangular box (20), one end of the spring (3) is fixedly connected with the surface of the push plate (25), and the other end of the spring (3) is fixedly connected with the inner wall of the rectangular box (20).
6. A semi-automatic foot-activated kickstand according to claim 5, wherein, The clamping block (24) is provided with a downward inclined surface at one end clamped with the clamping groove (19), and the clamping block (24) moves away from the support column (4) through the relative movement of the inclined surface and the clamping groove (19) when the support column (4) rises.
Citation Information
Patent Citations
Student desk leg lifting and locking device
CN103750642A