A multi-joint scale limiting sports teaching posture correction device
Patent Information
- Application Number
- CN202611361822.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-09-03
- Publication Date
- 2026-10-09
AI Technical Summary
[0004]针对现有技术的不足，本发明提供了一种多关节刻度限位的体育教学姿态矫正装置，解决了现有深蹲训练辅助装置难以直观显示屈膝弯曲角度，缺少下蹲幅度限位、以及辅助站起防护功能，无法同时对腿部、手臂多关节姿态进行约束矫正，训练过程易出现动作不规范、肌肉拉伤以及学员借力偷懒的问题
1、本发明通过伺服电机、弹簧相配合的驱动结构带动托板运动，能够对使用者下蹲最大幅度进行机械限位，防止出现过度下蹲的错误动作，压力传感器实时检测托板承受的反作用力，作用力超限则停止托板抬升，既避免使用者借助托板力量偷懒，还可以根据受力变化识别使用者力竭状态，及时提示休息，有效降低深蹲训练过程中肌肉拉伤的风险，提升体育深蹲教学训练的安全性。
Smart Images
Figure CN122874872A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of sports teaching equipment technology, specifically to a multi-joint scale-limited sports teaching posture correction device. Background Technology
[0002] Squats are a very common basic training exercise in physical education. Proper and standardized squat training can strengthen the lower limb muscles. However, squats have high requirements for the range of knee flexion and body posture. Incorrect squatting posture can easily cause knee and muscle injuries. Therefore, physical education teaching needs to use auxiliary devices to help students complete standard squat training.
[0003] Currently, most existing squat assisted training methods simply set up blocks for rigid limits, lacking visual feedback on knee flexion angles, making it difficult to intuitively judge whether the squat is in place; trainees are prone to problems such as oversquatting, using momentum to slack off, and muscle strain when exhausted, failing to meet the needs of movement correction, training protection, and instructional visualization. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a multi-joint scale-limited posture correction device for physical education. It solves the problems of existing squat training auxiliary devices, such as difficulty in intuitively displaying the knee flexion angle, lack of squat range limitation and auxiliary standing protection functions, inability to simultaneously constrain and correct the posture of multiple joints of the legs and arms, and easy occurrence of non-standard movements, muscle strains, and students using leverage to slack off during training.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-joint scale-limited posture correction device for physical education, comprising a base plate, with first columns fixedly connected to the left and right sides of the upper front end of the base plate, and a horizontal plate fixedly connected to the top of each of the first columns. A first movable ring that moves up and down is provided on the outside of each of the first columns, and a connecting rod is fixedly connected to the outer side of the first movable ring. A fixing plate is fixedly connected to the outside of the connecting rod, and a support plate is fixedly connected to the rear end of the fixing plate. A driving component for moving the first movable ring up and down is provided inside the front end of the horizontal plate. Slide rods are fixedly connected to the upper left and right ends of the base plate, and lifting rings that move up and down are provided outside the slide rods. A second fastener for fixing is threaded to the rear side of the lifting ring. An ear plate is fixedly connected to the front side of the lifting ring, and a rotating ring is rotatably connected to the inner front end of the ear plate. A swing rod is fixedly connected to the front side of the rotating ring, and a ring body is sleeved on the outer front end of the swing rod. The end of the ring body is rotatably connected to the outer side of the first movable ring. An angle plate is fixedly connected to the outer side of the ear plate.
[0006] Preferably, a fixing ring is fixedly connected to the rear end of the swing arm, and a pointer is fixedly connected to the outside of the fixing ring, with the end of the pointer pointing to the scale of the angle dial.
[0007] Preferably, the left and right ends of the upper rear end of the base plate are fixedly connected to a second column, and a second scale is provided on the outer side of the second column.
[0008] Preferably, the second column is provided with a second movable ring that moves up and down, and a first fastener for fixing is threaded to the opposite side of the second movable ring, and a stop bar is fixedly connected to the opposite side of the second movable ring.
[0009] Preferably, the drive assembly includes a winding roller rotatably connected inside the front end of the horizontal plate, a drive shaft fixedly connected to the middle of the winding roller, a servo motor fixedly connected to the right side of the horizontal plate, and the drive end of the servo motor fixedly connected to the right end of the drive shaft.
[0010] Preferably, a through hole is provided on the lower front side of the horizontal plate, and a traction rope passing through the through hole is provided on the outside of the winding roller.
[0011] Preferably, a hook is installed at the lower end of the traction rope, and a hanging ring is installed on the outside of the hook, with the end of the hanging ring fixedly connected to the front side of the first movable ring.
[0012] Preferably, the lower end of the first column is provided with movable grooves on both the front and rear sides, and a second connecting plate that slides up and down is provided on the inner side of the movable groove. The end of the second connecting plate is fixedly connected to the inner side of the first movable ring, and a first scale is provided on the outer side of the lower end of the first column located outside the movable groove.
[0013] Preferably, a spring is provided inside the lower end of the first column, and a first connecting plate is provided at the lower end of the spring. The first connecting plate is fixedly connected to the bottom of the inner wall of the lower end of the first column, and the upper end of the spring is hung at the middle of the lower end of the second connecting plate.
[0014] Preferably, a pressure sensor is installed on the upper side of the tray, and a displacement sensor is installed on the lower side of the tray.
[0015] Working Principle: During squat instruction, the user stands on a specific area of the base plate. The lifting ring is then adjusted to the user's knee height based on their calf height. The lifting parameters of the support plate are then adjusted according to the user's height and body type. When the user squats, a servo motor drives the drive shaft to rotate, releasing the traction rope. At this time, a spring inside the lower end of the first column pulls the second connecting plate downwards, thereby pulling the first movable ring and connecting rod downwards, and causing the fixed plate and support plate to move downwards. Once the movement reaches the desired height, the servo motor locks and stops rotating to prevent the support plate from descending further. This supports the user's legs, preventing excessive squatting and restricting their posture for correction. When the user stands up, the servo motor drives the winding roller to rotate, retracting the traction rope and moving the support plate upward. The support plate applies a certain lifting force to assist the user in standing up, preventing strains caused by prolonged training. At the same time, a pressure sensor on the upper part of the support plate measures the reaction force supporting the user. When the force exceeds a set threshold, the support plate stops rising. This prevents the user from using the lifting force to slack off and also indicates that the user is "exhausted and needs to rest" if they frequently find it difficult to stand up.
[0016] During the up-and-down movement of the connecting rod driven by the first movable ring, the first movable ring drives the swing arm to swing up and down through the outer ring body, thereby causing the fixed ring and pointer to swing around the angle plate. The pointer points to the scale of the angle plate to swing in accordance with the user's leg bending. The scale indicated on the angle plate determines whether the user has squatted down properly, providing a visual indication. At the same time, when squatting with arms outstretched, the second movable ring can drive the stop bar to adjust up and down on the outside of the second column. The rotating first fastener is used to fix the adjusted second movable ring. When the user squats, the stop bar supports the user's arms and calibrates the user's arm posture. At the same time, when the user is exhausted, the user can grab the stop bar for leverage.
[0017] This invention provides a multi-joint scale-limited posture correction device for physical education. It has the following beneficial effects: 1. This invention uses a drive structure consisting of a servo motor and a spring to move the support plate, which can mechanically limit the maximum squatting range of the user to prevent excessive squatting. The pressure sensor detects the reaction force on the support plate in real time. If the force exceeds the limit, the support plate will stop rising. This not only prevents the user from using the support plate to slack off, but also identifies the user's exhaustion state based on the force changes and prompts them to rest in time, effectively reducing the risk of muscle strain during squat training and improving the safety of squat teaching and training.
[0018] 2. This invention features an angle feedback mechanism with an angle dial and pointer, providing real-time feedback on the leg bending angle as the user squats, allowing the user to intuitively judge whether the squat is complete. It also includes an adjustable stop bar structure to calibrate the user's arm posture during squats. When the user is exhausted, they can hold the stop bar for leverage. This device simultaneously provides posture constraints and visual feedback for multiple joints in the legs and arms, facilitating standardized squat instruction and improving the accuracy of training movements. Attached Figure Description
[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the first column of the present invention; Figure 3 This is a schematic diagram of the connecting rod of the present invention; Figure 4 for Figure 2 Enlarged view of point A in the middle; Figure 5 for Figure 2 Enlarged view at point B in the middle; Figure 6 This is a schematic diagram of the angle disk of the present invention; Figure 7 This is a schematic diagram of the ear plate of the present invention.
[0020] The components are as follows: 1. Base plate; 2. First column; 3. Horizontal plate; 4. First movable ring; 5. Connecting rod; 6. Fixed plate; 7. Support plate; 8. Pressure sensor; 9. Displacement sensor; 10. Winding roller; 11. Drive shaft; 12. Servo motor; 13. Through hole; 14. Traction rope; 15. Hook; 16. Hanging ring; 17. Movable groove; 18. First scale; 19. Spring; 20. First connecting plate; 21. Second connecting plate; 22. Second column; 23. Second scale; 24. Second movable ring; 25. First fastener; 26. Stop bar; 27. Slide bar; 28. Lifting ring; 29. Second fastener; 30. Ear plate; 31. Rotating ring; 32. Swing rod; 33. Ring body; 34. Angle plate; 35. Fixed ring; 36. Pointer. Detailed Implementation
[0021] 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.
[0022] Example: Please see the appendix Figure 1-7This invention provides a multi-joint scale-limited posture correction device for physical education, including a base plate 1. First columns 2 are fixedly connected to the left and right sides of the upper front end of the base plate 1. A horizontal plate 3 is fixedly connected to the top of each of the first columns 2. A first movable ring 4 that moves vertically is provided on the outside of each first column 2. A connecting rod 5 is fixedly connected to the outer side of each first movable ring 4. A fixing plate 6 is fixedly connected to the outside of the connecting rod 5. A support plate 7 is fixedly connected to the rear end of the fixing plate 6. A pressure sensor 8 is installed on the upper side of the support plate 7, and a displacement sensor 9 is installed on the lower side of the support plate 7. A driving component for moving the first movable ring 4 vertically is provided inside the front end of the horizontal plate 3. Slide rods 27 are fixedly connected to the upper sides of the left and right ends of the base plate 1. Lifting rings 28 that move vertically are provided on the outside of the slide rods 27. A second fastener 29 for fixing is threaded to the rear side of the lifting rings 28. A lug 30 is fixedly connected to the front side of the lowering ring 28. A rotating ring 31 is rotatably connected to the inner front side of the lug 30. A rocker arm 32 is fixedly connected to the front side of the rotating ring 31. A ring body 33 is sleeved on the outer front side of the rocker arm 32. The end of the ring body 33 is rotatably connected to the outer side of the first movable ring 4. An angle plate 34 is fixedly connected to the outer side of the lug 30. A fixing ring 35 is fixedly connected to the outer rear end of the rocker arm 32. A pointer 36 is fixedly connected to the outer side of the fixing ring 35. The end of the pointer 36 points to the scale of the angle plate 34. A second column 22 is fixedly connected to both the left and right ends of the upper rear end of the base plate 1. A second scale 23 is provided on the outer side of the second column 22. A second movable ring 24 that moves up and down is provided on the outer side of the second column 22. A first fastener 25 for fixing is threaded to the opposite side of the second movable ring 24. A stop bar 26 is fixedly connected to the opposite side of the second movable ring 24.
[0023] Specifically, this device aims to address the lack of precise limitation and real-time feedback on multi-joint movement angles in existing sports teaching aids during posture correction, making it difficult to ensure the standardization of training movements. At the left and right ends of the upper front side of the base plate 1, vertically upward-facing first columns 2 are fixedly connected by welding or bolts. The tops of the two first columns 2 are fixedly connected by a horizontal plate 3, forming a robust portal-shaped support structure, providing a foundation for the installation and operation of subsequent motion components. The core motion and support components of the device are located on the first columns 2. Each first column 2 is fitted with a first movable ring 4 that can slide up and down along its axial direction. The outer sides of the two first movable rings 4 are rigidly fixedly connected by a connecting rod 5 to ensure the synchronicity of the two first movable rings 4 during up and down movement. A fixing plate 6 is fixedly connected to the outside of the connecting rod 5, and a support plate 7 for supporting the user's body is fixedly connected to the rear end of the fixing plate 6. The front end of the horizontal plate 3 houses a drive component for driving the first movable rings 4 to rise and fall. To achieve real-time monitoring of the user's squatting angle, the device is equipped with an angle indicating mechanism. Slide rods 27 are fixedly connected to the upper sides of both ends of the base plate 1. Each slide rod 27 is fitted with a lifting ring 28 that can move up and down along the slide rod 27. A second fastener 29 is threaded onto the rear side of the lifting ring 28 to lock the lifting ring 28 at any height position on the slide rod 27. An ear plate 30 is fixedly connected to the front side of the lifting ring 28, and an angle disc 34 with markings is fixedly installed on the outer side of the ear plate 30. This angle indicating mechanism is connected to the core moving part through a linkage structure. A rotating ring 31 is rotatably connected to the inner front end of the ear plate 30, and a swing rod 32 is fixedly connected to the front side of the rotating ring 31. A ring body 33 is fitted onto the outer front end of the swing rod 32, and the end of the ring body 33 is rotatably connected to the outer side of the first movable ring 4. Thus, when the first movable ring 4 slides up and down along the first column 2, it drives the swing rod 32 to rotate around the axis of the rotating ring 31 through the ring body 33, thereby achieving dynamic indication of the user's joint movement angle.
[0024] Please see the appendix Figure 1-7The drive assembly includes a winding roller 10 rotatably connected to the front end of the horizontal plate 3. A drive shaft 11 is fixedly connected to the middle of the winding roller 10. A servo motor 12 is fixedly connected to the right side of the horizontal plate 3. The drive end of the servo motor 12 is fixedly connected to the right end of the drive shaft 11. A through hole 13 is provided on the lower side of the front end of the horizontal plate 3. A traction rope 14 is provided on the outside of the winding roller 10, passing through the through hole 13. A hook 15 is installed at the lower end of the traction rope 14. A hanging ring 16 is installed on the outside of the hook 15. The end of the hanging ring 16 is fixedly connected to the front side of the first movable ring 4. The lower end of the column 2 has movable grooves 17 on both the front and rear sides. The inner side of the movable groove 17 is provided with a second connecting plate 21 that slides up and down. The end of the second connecting plate 21 is fixedly connected to the inner side of the first movable ring 4. The lower end of the first column 2 is provided with a first scale 18 located outside the movable groove 17. The lower end of the first column 2 is provided with a spring 19. The lower end of the spring 19 is provided with a first connecting plate 20. The first connecting plate 20 is fixedly connected to the bottom of the inner wall of the lower end of the first column 2. The upper end of the spring 19 is hung on the middle of the lower end of the second connecting plate 21.
[0025] Specifically, to achieve precise lifting and lowering control of the pallet 7, the drive assembly of the device is integrated inside the horizontal plate 3, and a matching control system is also provided. Please refer to... Figure 1 A servo motor 12 is fixedly connected to the right side of the horizontal plate 3. The drive end of the servo motor 12 is fixedly connected to the right end of a horizontally arranged transmission shaft 11. The transmission shaft 11 is rotatably supported inside the horizontal plate 3, and a winding roller 10 is fixedly connected to its center. A through hole 13 for guiding the rope is opened on the lower front side of the horizontal plate 3. One end of a traction rope 14 is wound around the outside of the winding roller 10, and the other end extends downward through the through hole 13. A hook 15 is installed at the lower end of the traction rope 14, and the hook 15 is connected to a hanging ring 16 fixed to the front side of the first movable ring 4. Through this transmission structure, the servo motor 12 can drive the winding roller 10 to rotate in both directions, thereby realizing the winding and unwinding of the traction rope 14, and thus precisely controlling the vertical position of the first movable ring 4. To ensure the stability and guiding accuracy of the first movable ring 4 during its up-and-down movement, please refer to... Figure 2 , Figure 4 and Figure 5Each first column 2 has movable grooves 17 on both its lower front and rear sides along its height direction. The inner side of the first movable ring 4 is fixedly connected to the end of the second connecting plate 21, and the main body of the second connecting plate 21 is accommodated in the movable groove 17 and can slide up and down along it. This plate-groove sliding fit structure effectively restricts the degree of freedom of movement of the first movable ring 4, preventing it from rotating or tilting under force. At the same time, a spring 19 is provided inside the lower end of the first column 2. The lower end of the spring 19 is fixedly connected to the first connecting plate 20 at the bottom of the inner wall of the first column 2, and its upper end is hung on the middle of the lower end of the second connecting plate 21. The spring 19 provides a continuous downward pulling force for the first movable ring 4 to assist its descent and maintain the tension of the traction rope 14. On the outer side of the lower end of the first column 2, located outside the movable groove 17, a first scale 18 is also provided to visually display the height position of the first movable ring 4.
[0026] To visualize the motion angle, a fixing ring 35 is fixedly connected to the rear end of the swing arm 32. A pointer 36 is fixedly connected to the outside of the fixing ring 35. When the first movable ring 4 drives the swing arm 32 to rotate, the end of the pointer 36 will simultaneously sweep across the surface of the angle disk 34, and the scale value it points to reflects the joint angle of the user's squat in real time. To collect key data during training, a pressure sensor 8 is installed on the upper side of the support plate 7 to monitor the amount of pressure applied by the user to the support plate 7 in real time. At the same time, a displacement sensor 9 is installed on the lower side of the support plate 7 to accurately measure the vertical displacement of the support plate 7, thereby obtaining detailed information on the range of motion.
[0027] 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 multi-joint scale-limited posture correction device for physical education, characterized in that, The base plate (1) is fixedly connected to the left and right sides of the upper front end of the base plate (1). A horizontal plate (3) is fixedly connected to the top of the first column (2). A first movable ring (4) that moves up and down is provided on the outside of the first column (2). A connecting rod (5) is fixedly connected to the outside of the first movable ring (4). A fixing plate (6) is fixedly connected to the outside of the connecting rod (5). A support plate (7) is fixedly connected to the rear end of the fixing plate (6). A driving component for driving the first movable ring (4) to move up and down is provided inside the front end of the horizontal plate (3). The upper sides of the left and right ends of the base plate (1) are fixedly connected to the first movable ring (4). A sliding rod (27) is connected to the outside of the sliding rod (27), and a lifting ring (28) that moves up and down is provided on the outside of the sliding rod (27). A second fastener (29) for fixing is threaded to the rear side of the lifting ring (28). An ear plate (30) is fixedly connected to the front side of the lifting ring (28). A rotating ring (31) is rotatably connected to the inner side of the front end of the ear plate (30). A swing rod (32) is fixedly connected to the front side of the rotating ring (31). A ring body (33) is sleeved on the outer side of the front end of the swing rod (32). The end of the ring body (33) is rotatably connected to the outer side of the first movable ring (4). An angle plate (34) is fixedly connected to the outer side of the ear plate (30).
2. The multi-joint scale-limited posture correction device for physical education as described in claim 1, characterized in that, A fixing ring (35) is fixedly connected to the rear end of the swing arm (32), and a pointer (36) is fixedly connected to the outside of the fixing ring (35). The end of the pointer (36) points to the scale of the angle dial (34).
3. The multi-joint scale-limited posture correction device for physical education as described in claim 1, characterized in that, The bottom plate (1) has a second column (22) fixedly connected to both the left and right ends of the upper rear end. The second column (22) has a second scale (23) on its outer side.
4. The multi-joint scale-limited posture correction device for physical education as described in claim 3, characterized in that, The second column (22) is provided with a second movable ring (24) that moves up and down. The opposite side of the second movable ring (24) is threaded with a first fastener (25) for fixing. The opposite side of the second movable ring (24) is fixedly connected with a stop bar (26).
5. The physical education posture correction device with multi-joint scale limiting according to claim 1, characterized in that, The drive assembly includes a winding roller (10) rotatably connected to the front end of the horizontal plate (3), a drive shaft (11) is fixedly connected to the middle of the winding roller (10), and a servo motor (12) is fixedly connected to the right side of the horizontal plate (3). The drive end of the servo motor (12) is fixedly connected to the right end of the drive shaft (11).
6. The multi-joint scale-limited posture correction device for physical education as described in claim 5, characterized in that, The lower front end of the horizontal plate (3) is provided with a through hole (13), and the outside of the winding roller (10) is provided with a traction rope (14) that passes through the through hole (13).
7. A multi-joint scale-limited posture correction device for physical education as described in claim 6, characterized in that, The lower end of the traction rope (14) is equipped with a hook (15), and a hanging ring (16) is installed on the outside of the hook (15). The end of the hanging ring (16) is fixedly connected to the front side of the first movable ring (4).
8. The multi-joint scale-limited posture correction device for physical education as described in claim 1, characterized in that, The first column (2) has movable grooves (17) on both the front and rear sides of its lower end. The inner side of the movable groove (17) is provided with a second connecting plate (21) that slides up and down. The end of the second connecting plate (21) is fixedly connected to the inner side of the first movable ring (4). The lower end of the first column (2) is provided with a first scale (18) located outside the movable groove (17).
9. A multi-joint scale-limited posture correction device for physical education as described in claim 8, characterized in that, A spring (19) is provided inside the lower end of the first column (2), and a first connecting plate (20) is provided at the lower end of the spring (19). The first connecting plate (20) is fixedly connected to the bottom of the lower inner wall of the first column (2), and the upper end of the spring (19) is hung at the middle of the lower end of the second connecting plate (21).
10. A multi-joint scale-limited posture correction device for physical education as described in claim 1, characterized in that, A pressure sensor (8) is installed on the upper side of the tray (7), and a displacement sensor (9) is installed on the lower side of the tray (7).