Measuring device capable of performing corrective training on lower limb actions

Abstract

The invention relates to the technical field of lower limb motion function training, in particular to a measuring device capable of conducting corrective training on lower limb motions. According to the measuring device capable of conducting corrective training on the dynamic force line of the lower limb, a user can be protected, and the situation that the user topples over during squatting and cannot stand up after squatting is avoided. A measuring device capable of conducting corrective training on lower limb actions comprises a mounting table, supports and the like, and the supports are connected to the front side and the rear side of the mounting table. The waist belt is worn on the waist, when a user topples over, the safety belt and the waist belt are driven to rapidly fall off, the falling protector locks the safety belt and stops the toppling action of the user, and when the user cannot stand up after squatting, the motor is started to drive the traction wheel on the front side to rotate, so that the traction block pulls the safety belt to move upwards to assist the user in standing up; the effects that the user can be protected, and the situation that the user topples over during squatting and cannot stand up after squatting is avoided are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of lower limb movement training, and in particular to a measuring device capable of performing corrective training on lower limb movements. Background Art

[0002] Dynamic knee valgus is a common lower extremity movement pattern that may include a combination of femoral adduction and internal rotation, knee abduction, tibial anterior translation, tibial external rotation, and ankle valgus. In this movement pattern, medial displacement of the knee beyond the foot-thigh line can be observed. DKV is one of the risk factors for acute and chronic knee injuries, such as non-contact anterior cruciate ligament (ACL) injury and patellofemoral pain (PFP). In addition to dynamic knee valgus, movement patterns such as knee varus, ankle valgus, and hip varus can all contribute to the increased risk of sports injuries. The single-leg squat training in the standard position (also known as the lunge squat or single-leg squat) is a common training method to correct these lower extremity movement patterns. This exercise is very beneficial for athletes, fitness enthusiasts, and people who need good lower extremity function in daily life. However, since the single-leg squat requires good balance and high leg strength, the lack of professional guidance during training means that the trainees cannot master the dynamic inversion and valgus of the knee joint and the inversion and valgus of the ankle joint, which often leads to the trainees training in a wrong movement mode, and even making more mistakes the more they practice. In addition, since this movement requires strong hip and leg strength, many novices may fall down when squatting and be unable to stand up after squatting when they start training, which can easily lead to injuries.

[0003] Therefore, the present invention has developed a measuring device that can quantitatively evaluate the user's lower limb movement patterns, identify and monitor errors, correct and guide erroneous movements at any time, and protect the user from falling, which can perform corrective training on lower limb movements. Summary of the invention

[0004] In order to overcome the disadvantage that the leg squat action requires good balance ability and high leg strength, during training, the trainee may fall down when squatting and be unable to stand up after squatting, which makes him or her prone to injury. The present invention provides a measuring device that can protect the user, prevent the user from falling down when squatting and being unable to stand up after squatting, and can perform corrective training on the lower limb movements.

[0005] The technical solution of the present invention is: a measuring device capable of performing corrective training on lower limb movements, comprising a mounting platform, a bracket, a display unit, a signal processing module, a guiding mechanism, a balancing mechanism and a pulling mechanism, the mounting platform is connected to the brackets on both the front and rear sides, the upper part of the bracket is connected to the display unit, the lower part of the bracket is connected to the signal processing module, the display unit and the signal processing module are connected by wires, the mounting platform is provided with a guiding mechanism capable of guiding the user to perform standardized movements, the mounting platform is also provided with a balancing mechanism capable of enabling the user to maintain body balance, and the mounting platform is also provided with a pulling mechanism capable of preventing the user from falling.

[0006] Furthermore, the guiding mechanism includes a main oil cylinder, a lifting platform, a linear guide rail, a slider and a sliding pedal. The main oil cylinder is connected to the lower left part of the mounting platform, the lifting platform is connected to the telescopic end of the main oil cylinder, the lifting platform is slidably connected to the mounting platform, the linear guide rail is connected to the upper middle part of the mounting platform, the slider is slidably connected to the linear guide rail, and the sliding pedal is rotatably connected to the slider. The main oil cylinder is started to adjust the height of the lifting platform to adapt to the height adjustment during the single-leg squatting action on the step. After the adjustment, the user places the squatting leg on the lifting platform and then places the other non-squatting leg on the sliding pedal. When the user performs a single-leg squatting action, the non-squatting leg slides forward to push the slider to slide on the linear guide rail.

[0007] Furthermore, top plates are provided on both the front and rear sides of the sliding pedal.

[0008] Furthermore, the balancing mechanism includes a support seat, a column, a stress sensor, a handle and a friction block. The support seat is connected to the upper left side of the mounting platform, the support seat is connected to the column, the support seat is connected to the stress sensor, the stress sensor and the signal processing module are connected by wires, the column is located inside the stress sensor, the upper part of the column is slidably connected to the handle, and the handle is rotatably connected to the friction block. Holding the handle can help maintain the body posture and keep the knee joint toward the toes. At this time, the hand will apply stress to the left and right or front and back directions on the pole, and the stress condition of the column is detected by the stress sensor. The signal processing module collects the stress measurement data of the column for processing and analysis.

[0009] Furthermore, the traction mechanism includes a stand, a fall arrester, a safety belt, a waist belt, an extension frame, a motor, a traction wheel and a traction block. The left side of the middle part of the mounting platform is connected to the stand, the upper part of the stand is rotatably connected to the fall arrester, the safety belt is wrapped around the fall arrester, and the lower part of the safety belt is connected to the waist belt. The lower sides of the left and right parts of the fall arrester are connected to the extension frame, the left side of the extension frame is connected to the motor, the front and rear parts of the extension frame are rotatably connected to the traction wheels, the motor output shaft is connected to the traction wheel on the front side, the safety belt is located between the traction wheels, and a plurality of traction blocks are connected to the traction wheels. The waist belt is worn around the waist. When the user falls, the safety belt and the waist belt are driven to fall quickly, so that the fall arrester locks the safety belt, thereby stopping the user from falling. When the user cannot stand up after squatting, the motor on the extension frame is started to drive the traction wheel on the front side to rotate, so that the traction block pulls the safety belt to move upward to assist the user to stand up.

[0010] Furthermore, the waist belt is made of flexible material.

[0011] Furthermore, it also includes a conversion mechanism, which includes a first fixed seat, a rotating frame, a rack, a torsion spring, a pusher, a gear, a second fixed seat, a locking pin and a spring. The first fixed seat is connected to the upper side of the middle of the mounting platform, the first fixed seat is located on the left side of the linear guide rail, the first fixed seat is rotatably connected to the rotating frame, the upper part of the rotating frame is connected to the rack, a plurality of torsion springs are connected between the rotating frame and the first fixed seat, the lower part of the rotating frame is movably connected to the pusher, the pusher is slidably connected to the mounting platform, the pusher is extruded and matched with the lifting platform, the lower part of the sliding pedal is connected to the gear, the upper side of the slider is connected to the second fixed seat, the second fixed seat is slidably connected to the locking pin, the locking pin is connected to the sliding pedal The plate is snap-fitted, and a spring is connected between the second fixed seat and the locking pin, so that the lifting platform moves downward and resets, so that the lifting platform squeezes the pushing piece to move, and then pushes the rotating frame to rotate, and the torsion spring is deformed, so that the rack is horizontal, and then the slider moves, so that the rack and the gear mesh and move, so that the sliding pedal rotates 180°, and the locking pin is squeezed forward when the sliding pedal rotates, and the spring is squeezed and contracted. When the sliding pedal stops rotating, the spring rebounds, so that the locking pin is reset and re-engaged with the sliding pedal to fix the sliding pedal, and then the lifting platform is moved up to adjust the height and disengage from the pushing piece, so that the torsion spring is restored, driving the rotating frame and the rack to reset, so that the rack and the gear are disengaged.

[0012] Furthermore, the rear portion of the locking pin is arc-shaped.

[0013] Furthermore, it also includes a capture mechanism, which includes a mounting frame and a camera. The mounting frame is connected to the right side of the mounting platform, the mounting frame is connected to the camera, and the middle of the bracket is also connected to the camera. The camera and the signal processing module are connected by wires, and the camera takes all-round shots of the user. The signal processing module collects the measurement values ​​of the pole and the video of the camera to process and analyze the data, and finally calculates the vector X and the angle values, and then displays and prompts the measurement values, and provides real-time corrective guidance for training movements and records of training activities on the display unit.

[0014] Furthermore, it also includes an adjustment mechanism, which includes a third fixed seat, an auxiliary oil cylinder and a rotating pedal. The front and rear parts of the lifting platform are both connected to the third fixed seat. The auxiliary oil cylinder is rotatably connected to the third fixed seat. The rotating pedal is rotatably connected between the telescopic ends of the auxiliary oil cylinder, so that the user places the squatting legs on the rotating pedal, and then starts the auxiliary oil cylinder to adjust the angle of the rotating pedal.

[0015] The beneficial effects are: 1. The present invention quantitatively evaluates the completion quality of the single-leg squat action through mechanical sensing and video motion capture analysis, such as measuring and rating the degree of non-standardization during movements such as dynamic knee valgus, dynamic knee varus, dynamic hip varus, and dynamic ankle valgus. It can provide an evaluation method for the user's lower limb motor function and also provide assistance for the user to carry out corrective training of the lower limb function.

[0016] 2. The present invention wears the waist belt around the waist, and when the user falls, the safety belt and the waist belt are driven to fall quickly, so that the fall arrester locks the safety belt and stops the user from falling. When the user cannot stand up after squatting, the motor is started to drive the traction wheel on the front side to rotate, so that the traction block pulls the safety belt upward to assist the user to stand up, thereby protecting the user and preventing the user from falling when squatting and being unable to stand up after squatting.

[0017] 3. The present invention enables the user to place the squatting leg on a lifting platform and then place the other non-squatting leg on a sliding pedal. When the user performs a single-leg squatting action, the non-squatting leg slides forward, pushing the slider to slide on the linear guide rail, thereby achieving the effect of being able to limit the non-squatting leg and facilitating standardized evaluation.

[0018] 4. The present invention helps maintain body posture by holding the handle and keeps the knee joint toward the toes, thereby enabling the user to maintain body balance and facilitate the completion of training movements.

[0019] 5. The base of the upright pole of the present invention is provided with a multi-axis mechanical sensor, which can accurately measure the direction and magnitude of the auxiliary force required by the user when completing the squatting action, and can provide necessary parameter support for the evaluation of the quality of completion of the action.

[0020] 6. The present invention resets the lifting platform downward, so that the lifting platform squeezes the pusher to move, thereby pushing the rotating frame to rotate, causing the torsion spring to deform, making the rack horizontal, and then moving the slider to mesh with the gear, causing the sliding pedal to rotate 180°, thereby enabling the user to switch between the squatting leg and the non-squatting leg, thereby facilitating the training of both legs.

[0021] 7. The present invention processes and analyzes the measured values ​​of the upright pole and the video of the camera through a signal processing module, and finally calculates the vector X and the angle values, and then displays and prompts the measured values, and quantitatively scores and rates the quality of the action through a specific algorithm, and provides real-time corrective guidance of the training action and records of the training activities on the display unit, thereby achieving the effect of being able to monitor the user's single-leg squat action and facilitate the user to correct the action.

[0022] 8. The present invention allows the user to place the squatting leg on the rotating pedal, then starts the auxiliary cylinder to adjust the angle of the rotating pedal, thereby controlling the flexion and extension angle of the user's ankle joint during the squatting process and improving the training effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0024] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0025] Figure 3 It is a three-dimensional structural cross-sectional view of the guiding mechanism of the present invention.

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the guiding mechanism of the present invention.

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the balancing mechanism and the pulling mechanism of the present invention.

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the first part of the balancing mechanism of the present invention.

[0029] Figure 7 It is a schematic diagram of the third part of the balancing mechanism of the present invention.

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the first part of the pulling mechanism of the present invention.

[0031] Fig. 9 It is a schematic diagram of the second part of the structure of the pulling mechanism of the present invention.

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure of the first part of the conversion mechanism of the present invention.

[0033] Fig.11 It is a schematic diagram of the second part of the three-dimensional structure of the conversion mechanism of the present invention.

[0034] Fig.12 It is a schematic diagram of the third structure of the conversion mechanism of the present invention.

[0035] Fig.13 It is a schematic diagram of the fourth structure of the conversion mechanism of the present invention.

[0036] Fig.14 It is a schematic diagram of the three-dimensional structure of the conversion mechanism of the present invention.

[0037] Fig.15 It is a schematic diagram of the three-dimensional structure of the capture mechanism of the present invention.

[0038] Fig.16 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention.

[0039] Parts names and serial numbers in the figure: 1_mounting table, 11_bracket, 12_display unit, 13_signal processing module, 2_guiding mechanism, 20_main cylinder, 21_lifting platform, 22_linear guide rail, 23_slider, 24_sliding pedal, 3_balancing mechanism, 30_support seat, 31_column, 32_stress sensor, 33_handle, 34_friction block, 4_pulling mechanism, 40_stand, 41_fall arrester, 42_safety belt, 43_belt, 44_extension frame, 45_motor, 46_traction wheel, 47_traction block, 5_conversion mechanism, 50_first fixed seat, 51_rotating frame, 52_rack, 53_torsion spring, 54_pushing member, 55_gear, 56_second fixed seat, 57_locking pin, 58_spring, 6_capturing mechanism, 60_mounting frame, 61_camera, 7_adjusting mechanism, 70_third fixed seat, 71_auxiliary cylinder, 72_rotating pedal. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] A measuring device capable of performing corrective training on lower limb movements, such as Figure 1-Figure 16 As shown, it includes a mounting platform 1, a bracket 11, a display unit 12, a signal processing module 13, a guiding mechanism 2, a balancing mechanism 3 and a pulling mechanism 4. The bracket 11 is connected to the front and rear sides of the mounting platform 1, the upper part of the bracket 11 is connected to the display unit 12, the lower part of the bracket 11 is connected to the signal processing module 13, the display unit 12 and the signal processing module 13 are connected by wires, the mounting platform 1 is provided with a guiding mechanism 2, the mounting platform 1 is also provided with a balancing mechanism 3, and the mounting platform 1 is also provided with a pulling mechanism 4.

[0042] like Figure 1 , Figure 3 and Figure 4 As shown, the guiding mechanism 2 includes a main oil cylinder 20, a lifting platform 21, a linear guide rail 22, a slider 23 and a sliding pedal 24. The main oil cylinder 20 is connected to the lower left part of the mounting platform 1, and the lifting platform 21 is connected to the telescopic end of the main oil cylinder 20. The lifting platform 21 is slidably connected to the mounting platform 1. The linear guide rail 22 is connected to the upper middle side of the mounting platform 1. The slider 23 is slidably connected to the linear guide rail 22. The sliding pedal 24 is rotatably connected to the slider 23. The sliding pedal 24 is provided with top plates on both the front and rear sides for the convenience of users to step on.

[0043] like Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the balancing mechanism 3 includes a support base 30, a column 31, a stress sensor 32, a handle 33 and a friction block 34. The support base 30 is connected to the upper left side of the mounting platform 1, the support base 30 is connected to the column 31, the support base 30 is connected to the stress sensor 32, the stress sensor 32 is connected to the signal processing module 13 through wires, the column 31 is located inside the stress sensor 32, the upper part of the column 31 is slidably connected to the handle 33, and the friction block 34 is rotatably connected to the handle 33.

[0044] like Figure 1 , Figure 5 , Figure 8 and Fig. 9 As shown, the pulling mechanism 4 includes a stand 40, a fall arrester 41, a safety belt 42, a waist belt 43, an extension frame 44, a motor 45, a traction wheel 46 and a traction block 47. The stand 40 is connected to the left side of the middle part of the mounting platform 1, and the upper part of the stand 40 is rotatably connected to the fall arrester 41, the safety belt 42 is wrapped around the fall arrester 41, and the lower part of the safety belt 42 is connected to the waist belt 43. The waist belt 43 is made of flexible material to improve the wearing comfort of the user. The lower sides of the left and right parts of the fall arrester 41 are connected to the extension frames 44, the left side of the extension frame 44 is connected to the motor 45, the front and rear parts of the extension frames 44 are rotatably connected to the traction wheels 46, the output shaft of the motor 45 is connected to the traction wheel 46 on the front side, the safety belt 42 is located between the traction wheels 46, and a plurality of traction blocks 47 are connected to the traction wheels 46.

[0045] When using the present invention, first place the mounting platform 1 in the lower limb movement training area, then start the main oil cylinder 20, and adjust the height of the lifting platform 21 to adapt to the height adjustment during the single-leg squat action on the steps. After the adjustment, the user places the squatting leg on the lifting platform 21, and then places the other non-squatting leg on the sliding pedal 24. When the user performs a single-leg squat action, the non-squatting leg slides forward, pushing the slider 23 to slide on the linear guide rail 22, thereby limiting the non-squatting leg and facilitating standardized evaluation. When it is difficult for the user to complete the single-leg squat movement, the user can hold the handle 33 to help maintain the body posture, keep the torso perpendicular to the ground, and the knee joint toward the toes, so that the user can maintain body balance and complete the training movement. At this time, the hand will apply stress to the vertical pole in the left and right or front and back directions, and the stress condition of the column 31 is detected by the stress sensor 32. The signal processing module 13 collects the stress measurement data of the column 31 for processing and analysis. When the user needs to stabilize the handle 33 in a certain position, the friction block 34 can be pressed to move it closer to the column 31 to increase the friction between the handle 33 and the column 31, thereby stabilizing the handle 33. When the user performs a single-leg squatting movement, the waist belt 43 can be worn around the waist. When the user falls, the safety belt 42 and the waist belt 43 are driven to fall quickly, so that the fall arrester 41 locks the safety belt 42, thereby stopping the user from falling. When the user cannot stand up after squatting, the motor 45 on the extension frame 44 is started to drive the traction wheel 46 on the front side to rotate, so that the traction block 47 pulls the safety belt 42 to move upward, assisting the user to stand up, thereby protecting the user and preventing the user from falling when squatting and being unable to stand up after squatting.

[0046] like Figure 10-Figure 14 As shown, a conversion mechanism 5 is also included, and the conversion mechanism 5 includes a first fixed seat 50, a rotating frame 51, a rack 52, a torsion spring 53, a pusher 54, a gear 55, a second fixed seat 56, a lock pin 57 and a spring 58. The first fixed seat 50 is connected to the upper side of the middle of the mounting platform 1. The first fixed seat 50 is located on the left side of the linear guide rail 22. The first fixed seat 50 is rotatably connected to the rotating frame 51. The upper part of the rotating frame 51 is connected to the rack 52. The rotating frame 51 and the first fixed seat 50 are connected. Two torsion springs 53, a pushing member 54 is movably connected to the lower part of the rotating frame 51, the pushing member 54 is slidably connected to the mounting platform 1, the pushing member 54 is squeezed and matched with the lifting platform 21, a gear 55 is connected to the lower part of the sliding pedal 24, a second fixed seat 56 is connected to the upper side of the slider 23, a locking pin 57 is slidably connected to the second fixed seat 56, the rear part of the locking pin 57 is arc-shaped, which is easy to clamp, the locking pin 57 is clamped and matched with the sliding pedal 24, and a spring 58 is connected between the second fixed seat 56 and the locking pin 57.

[0047] The conversion mechanism 5 of the device can be used to convert the squatting leg and the non-squatting leg. When converting, the lifting platform 21 is moved downward to reset, so that the lifting platform 21 squeezes the pushing member 54 to move, thereby pushing the rotating frame 51 to rotate, and the torsion spring 53 is deformed, so that the rack 52 is horizontal, and then the slider 23 is moved, so that the rack 52 and the gear 55 are meshed and moved, so that the sliding pedal 24 is rotated 180°. When the sliding pedal 24 rotates, the locking pin 57 is squeezed forward, and the spring 58 is squeezed and contracted. When the sliding pedal 24 stops After the rotation, the spring 58 rebounds, so that the locking pin 57 is reset and re-engaged with the sliding pedal 24, thereby fixing the sliding pedal 24. The lifting platform 21 is then moved up to adjust the height and disengage from the pushing member 54, so that the torsion spring 53 is restored, driving the rotating frame 51 and the rack 52 to reset, so that the rack 52 is disengaged from the gear 55. After that, the user's body is rotated 180°, and the other lower limb is evaluated in the same way, thereby enabling the user to switch between the squatting leg and the non-squatting leg, thereby facilitating the training of both legs.

[0048] like Figure 1 and Fig.15 As shown, it also includes a capture mechanism 6, which includes a mounting frame 60 and a camera 61. The mounting frame 60 is connected to the right side of the mounting platform 1, and the camera 61 is connected to the mounting frame 60. The middle part of the bracket 11 is also connected to the camera 61, and the camera 61 is connected to the signal processing module 13 through wires.

[0049] The capture mechanism 6 of the device can capture the user's movements. When the user performs a single-leg squat, the camera 61 shoots the user in all directions. The signal processing module 13 collects the measurement values ​​of the pole and the video of the camera 61 to process and analyze the data, and finally calculates the vector X and the angle values, and then displays and prompts the measurement values, performs comprehensive scoring and rating through a specific algorithm, and provides real-time corrective guidance for training movements and records of training activities on the display unit 12, thereby playing a role in monitoring the user's single-leg squat and facilitating the user to correct the movement.

[0050] like Figure 1 and Fig.16 As shown, it also includes an adjusting mechanism 7, which includes a third fixed seat 70, an auxiliary cylinder 71 and a rotating pedal 72. The front and rear parts of the lifting platform 21 are both connected to the third fixed seat 70, and the auxiliary cylinder 71 is rotatably connected to the third fixed seat 70. The rotating pedal 72 is rotatably connected between the telescopic ends of the auxiliary cylinder 71.

[0051] By using the adjustment mechanism 7 of the device, the flexion and extension angle of the ankle joint during squatting can be adjusted, so that the user places the squatting leg on the rotating pedal 72, and then starts the auxiliary cylinder 71 to adjust the angle of the rotating pedal 72, thereby controlling the flexion and extension angle of the ankle joint of the user during squatting and improving the training effect.

[0052] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. A measuring device capable of performing corrective training on lower limb movements, characterized in that: The device comprises a mounting platform (1), a bracket (11), a display unit (12), a signal processing module (13), a guiding mechanism (2), a balancing mechanism (3) and a pulling mechanism (4); the mounting platform (1) is connected to the bracket (11) on both the front and rear sides; the upper part of the bracket (11) is connected to the display unit (12); the lower part of the bracket (11) is connected to the signal processing module (13); the display unit (12) and the signal processing module (13) are connected via electric wires; the mounting platform (1) is provided with a guiding mechanism (2) capable of guiding a user to perform standardized movements; the mounting platform (1) is also provided with a balancing mechanism (3) capable of enabling a user to maintain body balance; and the mounting platform (1) is also provided with a pulling mechanism (4) capable of preventing a user from falling.

2. A measuring device capable of performing corrective training on lower limb movements according to claim 1, characterized in that: The guide mechanism (2) comprises a main oil cylinder (20), a lifting platform (21), a linear guide rail (22), a slider (23) and a sliding pedal (24); the lower left part of the mounting platform (1) is connected to the main oil cylinder (20); the telescopic end of the main oil cylinder (20) is connected to the lifting platform (21); the lifting platform (21) is slidably connected to the mounting platform (1); the upper middle part of the mounting platform (1) is connected to the linear guide rail (22); the slider (23) is slidably connected to the linear guide rail (22); the sliding pedal (24) is rotatably connected to the slider (23); the main oil cylinder (20) is started to adjust the height of the lifting platform (21) so as to adapt to the height adjustment during the single-leg squatting action on the step; after the adjustment, the user places the squatting leg on the lifting platform (21) and then places the other leg that is not squatting on the sliding pedal (24); when the user performs the single-leg squatting action, the non-squatting leg slides forward to push the slider (23) to slide on the linear guide rail (22).

3. A measuring device capable of performing corrective training on lower limb movements according to claim 2, characterized in that: Top plates are provided on both the front and rear sides of the sliding pedal (24).

4. A measuring device capable of performing corrective training on lower limb movements according to claim 2, characterized in that: The balancing mechanism (3) comprises a support seat (30), a column (31), a stress sensor (32), a grip (33) and a friction block (34). The upper left side of the mounting platform (1) is connected to the support seat (30), the column (31) is connected to the support seat (30), the stress sensor (32) is connected to the support seat (30), the stress sensor (32) is connected to the signal processing module (13) via an electric wire, the column (31) is located inside the stress sensor (32), the upper part of the column (31) is slidably connected to the grip (33), the friction block (34) is rotatably connected to the grip (33), and the grip (33) is held to assist in maintaining the body posture and keep the knee joint towards the toes. At this time, the hand will apply stress in the left and right or front and back directions to the column, and the stress condition of the column (31) is detected by the stress sensor (32). The signal processing module (13) collects the stress measurement data of the column (31) for processing and analysis.

5. A measuring device capable of performing corrective training on lower limb movements according to claim 4, characterized in that: The pulling mechanism (4) comprises a stand (40), a fall arrester (41), a safety belt (42), a waist belt (43), an extension frame (44), a motor (45), a traction wheel (46) and a traction block (47). The left side of the middle of the mounting platform (1) is connected to the stand (40), the upper part of the stand (40) is rotatably connected to the fall arrester (41), the safety belt (42) is wound around the fall arrester (41), the lower part of the safety belt (42) is connected to the waist belt (43), the lower sides of the left and right parts of the fall arrester (41) are connected to the extension frame (44), the left side of the extension frame (44) is connected to the motor (45), and the front and rear parts of the extension frame (44) are rotatably connected. A traction wheel (46) is connected, the output shaft of the motor (45) is connected to the traction wheel (46) on the front side, the safety belt (42) is located between the traction wheels (46), and the traction wheels (46) are connected to a plurality of traction blocks (47). The waist belt (43) is worn around the waist. When the user falls, the safety belt (42) and the waist belt (43) are driven to fall quickly, so that the fall arrester (41) locks the safety belt (42), thereby stopping the user from falling. When the user cannot stand up after squatting, the motor (45) on the extension frame (44) is started to drive the traction wheel (46) on the front side to rotate, so that the traction block (47) pulls the safety belt (42) to move upward, thereby assisting the user to stand up.

6. A measuring device capable of performing corrective training on lower limb movements according to claim 5, characterized in that: The waist belt (43) is made of flexible material.

7. A measuring device capable of performing corrective training on lower limb movements according to claim 5, characterized in that: The mounting platform (1) further comprises a conversion mechanism (5), the conversion mechanism (5) comprising a first fixed seat (50), a rotating frame (51), a rack (52), a torsion spring (53), a pusher (54), a gear (55), a second fixed seat (56), a locking pin (57) and a spring (58). The first fixed seat (50) is connected to the upper middle side of the mounting platform (1), the first fixed seat (50) is located on the left side of the linear guide rail (22), the rotating frame (51) is rotatably connected to the first fixed seat (50), and the rotating frame (51) is connected to the first fixed seat (50). The rotating frame (51) is connected to a rack (52); a plurality of torsion springs (53) are connected between the rotating frame (51) and the first fixed seat (50); a pusher (54) is movably connected to the lower part of the rotating frame (51); the pusher (54) is slidably connected to the mounting platform (1); the pusher (54) is extruded and matched with the lifting platform (21); a gear (55) is connected to the lower part of the sliding pedal (24); a second fixed seat (56) is connected to the upper side of the slider (23); a locking pin (57) is slidably connected to the upper part of the second fixed seat (56); and the locking pin (57) is The second fixing seat (56) and the locking pin (57) are engaged with each other and are engaged with the sliding pedal (24). A spring (58) is connected between the second fixing seat (56) and the locking pin (57), so that the lifting platform (21) moves downward and resets, so that the lifting platform (21) squeezes the pushing member (54) to move, thereby pushing the rotating frame (51) to rotate, and the torsion spring (53) is deformed, so that the rack (52) is in a horizontal state, and then the slider (23) is moved, so that the rack (52) and the gear (55) are meshed and moved, so that the sliding pedal (24) rotates 180°, and the sliding pedal When the plate (24) rotates, the locking pin (57) is squeezed to move forward, and the spring (58) is squeezed and contracted. When the sliding pedal (24) stops rotating, the spring (58) rebounds, so that the locking pin (57) is reset and re-engaged with the sliding pedal (24), thereby fixing the sliding pedal (24). Then, the lifting platform (21) is moved upward to adjust the height and disengage from the pushing member (54), so that the torsion spring (53) is restored, driving the rotating frame (51) and the rack (52) to reset, so that the rack (52) and the gear (55) are disengaged.

8. A measuring device capable of performing corrective training on lower limb movements according to claim 7, characterized in that: The rear portion of the locking pin (57) is in an arc shape.

9. A measuring device capable of performing corrective training on lower limb movements according to claim 7, characterized in that: The apparatus further comprises a capture mechanism (6), the capture mechanism (6) comprising a mounting frame (60) and a camera (61), the mounting frame (60) being connected to the right side of the mounting platform (1), the mounting frame (60) being connected to the camera (61), and the middle part of the bracket (11) being also connected to the camera (61), the camera (61) being connected to the signal processing module (13) via electric wires, the camera (61) taking all-round shots of the user, the signal processing module (13) collecting the measured values ​​of the pole and the video of the camera (61), processing and analyzing the data, and finally calculating the vector X and the values ​​of each angle, and then displaying and prompting the measured values, and providing corrective guidance of real-time training movements and records of training activities on the display unit (12).

10. A measuring device capable of performing corrective training on lower limb movements according to claim 9, characterized in that: The device also includes an adjustment mechanism (7), which includes a third fixed seat (70), an auxiliary oil cylinder (71) and a rotating pedal (72). The front and rear parts of the lifting platform (21) are both connected to the third fixed seat (70), the auxiliary oil cylinder (71) is rotatably connected to the third fixed seat (70), and the rotating pedal (72) is rotatably connected between the telescopic ends of the auxiliary oil cylinder (71), so that the user can place the squatting leg on the rotating pedal (72), and then start the auxiliary oil cylinder (71) to adjust the angle of the rotating pedal (72).

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