A measuring device capable of corrective training of lower limb action

Abstract

The present application relates to the technical fields of lower limb movement function training, and especially relates to a measuring device capable of correcting training of lower limb movement. The present application provides a measuring device capable of correcting training of lower limb dynamic force line, which can protect users, avoid users from falling down when squatting and standing up after squatting. The measuring device capable of correcting training of lower limb movement comprises a mounting table and a support, etc., and the mounting table is connected with supports on both sides. The waistband is worn on the waist, and when the user falls down, the safety belt and the waistband fall down quickly, so that the anti-falling device locks the safety belt to stop the falling action of the user. When the user cannot stand up after squatting, the motor is started to drive the front traction wheel to rotate, so that the traction block moves the safety belt upward to assist the user to stand up, thereby achieving the effect of protecting the user, avoiding the user from falling down when squatting and standing up after squatting.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lower limb action training, and particularly relates to a measuring device capable of corrective training of lower limb action. BACKGROUND

[0002] Dynamic knee valgus is a very common lower limb error movement pattern, which can include a combination of femoral adduction and internal rotation, knee abduction, tibial advancement, tibial external rotation, and ankle valgus. In this movement pattern, medial knee displacement can be observed, which exceeds the foot-thigh line. DKV is one of the predisposing factors for acute and chronic injuries of the knee joint, 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 also have some impact on the increase in the risk of sports injuries. Single-leg squat training in a standard posture (also known as lunge or single-leg deep squat) is a common training method to correct these error movement patterns of the lower limbs. This exercise is very beneficial for athletes, fitness enthusiasts, and people who need good lower limb function in daily life. However, since the single-leg squat movement requires good balance and high leg strength, during training, the trainee cannot well master the conditions of dynamic knee varus and valgus, ankle varus and valgus, and the like due to the lack of professional guidance, often leading the trainee to carry out training in an error movement pattern, and even the more training, the more wrong. In addition, many beginners may experience falling during squatting and being unable to stand up after squatting when starting training due to the strong hip and leg strength required by the movement, which is prone to injury.

[0003] Therefore, the present application develops a set of measuring devices capable of corrective training of lower limb action, which can quantitatively evaluate the movement pattern of the lower limbs of the user, identify and monitor errors, correct and guide error movements at any time, and protect the user from falling. SUMMARY

[0004] In order to overcome the shortcomings that the single-leg squat movement requires good balance and high leg strength, and the trainee can experience falling during squatting and being unable to stand up after squatting when training, which is prone to injury, the present application provides a measuring device capable of corrective training of lower limb action, which can protect the user and prevent the user from falling during squatting and being unable to stand up after squatting.

[0005] The technical scheme of the present application is: a measuring device capable of correcting training of lower limb movement, comprising a mounting table, a support, a display unit, a signal processing module, a guiding mechanism, a balancing mechanism and a pulling mechanism, the mounting table is connected with supports on both sides, the supports are connected with the display units on the upper parts, the supports are connected with the signal processing modules on the lower parts, the display unit is connected with the signal processing module through wires, the mounting table is provided with the guiding mechanism capable of guiding the user to standardize movement, the mounting table is further provided with the balancing mechanism capable of keeping the user's body balanced, and the mounting table is further provided with the pulling mechanism capable of preventing the user from falling.

[0006] Further, the guiding mechanism comprises a main oil cylinder, a lifting platform, a linear guide rail, a sliding block and a sliding pedal, the mounting table is connected with the main oil cylinder on the lower left part, the main oil cylinder is connected with the lifting platform on the telescopic end, the lifting platform is slidably connected with the mounting table, the mounting table is connected with the linear guide rail on the upper middle part, the linear guide rail is slidably connected with the sliding block, and the sliding block is rotatably connected with the sliding pedal, the main oil cylinder is started, the height of the lifting platform is adjusted to adapt to the height adjustment in the process of single-leg squatting on the steps, after the adjustment, the user places the squatting leg on the lifting platform, and places the other leg on the sliding pedal, when the user performs single-leg squatting, the non-squatting leg slides forward to push the sliding block to slide on the linear guide rail.

[0007] Further, the sliding pedal is provided with a top plate on both sides.

[0008] Further, the balancing mechanism comprises a support seat, a stand, a stress sensor, a handle and a friction block, the mounting table is connected with the support seat on the upper left part, the support seat is connected with the stand, the support seat is connected with the stress sensor, the stress sensor is connected with the signal processing module through wires, the stand is located in the stress sensor, the handle is slidably connected with the stand on the upper part, and the friction block is rotatably connected with the handle, the handle is held to assist in maintaining the body posture, and the knee joint is kept towards the toe direction, at this time, the hand will exert stress on the stand in the left-right or front-rear direction, the stress of the stand is detected through the stress sensor, and the signal processing module collects and processes the stress measurement data of the stand.

[0009] Further, the pulling mechanism comprises a stand, a fall arrestor, a safety belt, a waist belt, an extension frame, a motor, a traction wheel and a traction block, the middle left side of the mounting table is connected with the stand, the upper part of the stand is rotatably connected with the fall arrestor, the fall arrestor is wound with the safety belt, the lower part of the safety belt is connected with the waist belt, the lower sides of the left and right parts of the fall arrestor are connected with the extension frame, the left side of the left extension frame is connected with the motor, the extension frame is rotatably connected with the traction wheel between the front part and the rear part, the output shaft of the motor is connected with the front traction wheel, the safety belt is located between the traction wheels, and a plurality of traction blocks are connected with the traction wheels. The waist belt is worn on the waist, when the user falls, the safety belt and the waist belt are quickly lowered, the fall arrestor is locked to stop the safety belt, so that the user's falling action is stopped, when the user cannot stand up after squatting, the motor on the extension frame is started, the front traction wheel is driven to rotate, and the traction block drives the safety belt to move upward, assisting the user to stand up.

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

[0011] Further, the conversion mechanism comprises a first fixed seat, a rotating frame, a rack, a torsional spring, a pusher, a gear, a second fixed seat, a lock pin and a spring, the middle upper side of the mounting table is connected with the first fixed seat, the first fixed seat is located on the left part of the linear guide rail, the rotating frame is rotatably connected with the first fixed seat, the upper part of the rotating frame is connected with the rack, a plurality of torsional springs are connected between the rotating frame and the first fixed seat, the lower part of the rotating frame is movably connected with the pusher, the pusher is slidably connected with the mounting table, the pusher is extruded with the lifting table, the lower part of the sliding pedal is connected with the gear, the upper side of the sliding block is connected with the second fixed seat, the second fixed seat is slidably connected with the lock pin, the lock pin is connected with the sliding pedal, the second fixed seat and the lock pin are connected with the spring, the lifting table is moved downward to reset, the lifting table is extruded with the pusher to move, the rotating frame is driven to rotate, the torsional spring is deformed, the rack is in a horizontal state, then the sliding block is moved, the rack and the gear are engaged to move, the sliding pedal is rotated by 180°, the sliding pedal is extruded to move forward when rotating, the spring is extruded to contract, when the sliding pedal stops rotating, the spring rebounds, the lock pin is reset to be connected with the sliding pedal, the sliding pedal is fixed, the lifting table is moved upward to adjust the height to be separated from the pusher, the torsional spring is restored, the rotating frame and the rack are reset, and the rack and the gear are disengaged.

[0012] Further, the rear part of the lock pin is arc-shaped.

[0013] Further, the capturing mechanism is further included, the capturing mechanism includes a mounting frame and a camera, the mounting frame is connected to the right side of the mounting table, and the camera is connected to the mounting frame, the middle parts of the supports are also connected with the camera, the camera is connected with the signal processing module through wires, the camera performs all-around shooting on the user, the signal processing module processes and analyzes data by collecting the measurement value of the stand and the video of the camera, finally calculates the vector X and the angle value, then displays and prompts the measurement value, and provides the corrective guidance of real-time training action and the record of training activity on the display unit.

[0014] Further, the adjusting mechanism is further included, the adjusting mechanism includes a third fixing base, a secondary oil cylinder and a rotating pedal, the third fixing base is connected to the front and rear parts of the lifting table, the secondary oil cylinder is rotatably connected to the third fixing base, and the rotating pedal is rotatably connected between the secondary oil cylinders, so that the user places the squatting leg on the rotating pedal, and then starts the secondary oil cylinder to adjust the angle of the rotating pedal.

[0015] Beneficial effects are: 1, the application can quantitatively evaluate the completion quality of single leg squatting by mechanical sensing and video motion capture analysis, can measure and grade the non-standard degree in the movement process such as dynamic knee valgus, dynamic knee varus, dynamic hip varus and dynamic ankle valgus, can provide evaluation method for lower limb motor function of the user, and can provide auxiliary for rectification training of lower limb function.

[0016] 2, the waistband is worn on the waist, the user falls, the safety belt and the waistband fall quickly, the safety belt is locked by the anti-falling device, the user's falling action is stopped, when the user cannot stand up after squatting, the motor is started, the front traction wheel is rotated, the traction block moves upward, the user is assisted to stand up, the user can be protected, the user can be prevented from falling when squatting and standing up after squatting.

[0017] 3, the user places the squatting leg on the lifting table, and then places the other leg which is not squatting on the sliding pedal, when the user performs single leg squatting action, the non-squatting leg slides forward, the sliding block slides on the linear guide rail, the non-squatting leg can be limited, and standardized evaluation is facilitated.

[0018] 4, the handle is held to assist in maintaining the body posture, the knee joint is kept towards the toe direction, the user can keep body balance, and the training action is facilitated.

[0019] 5, the stand base part is provided with a multi-axis mechanical sensor, the direction and size of the auxiliary force required by the user when completing the squatting action can be accurately measured, and necessary parameter support can be provided for the evaluation of the action completion quality.

[0020] 6、The lifting platform is reset by moving downward, so that the lifting platform extrudes the pushing piece to move, and then pushes the rotating frame to rotate, the torsional spring is deformed, the rack is in a horizontal state, then the sliding block is moved, so that the rack and the gear mesh movement, the sliding pedal is rotated by 180°, so that the user can convert the squatting legs and non-squatting legs, and the effect of facilitating the training of the two legs is achieved.

[0021] 7、The signal processing module processes and analyzes the measurement value of the vertical rod and the video data of the camera, finally calculates the vector X and the angle value, then displays and prompts the measurement value, quantitatively scores and grades the quality of the action through a specific algorithm, and provides real-time training action correction guidance and training activity record on the display unit, so that the single-leg squatting action of the user can be monitored, and the effect of facilitating the user to correct the action is achieved.

[0022] 8、The user places the squatting leg on the rotating pedal, and then starts the auxiliary oil cylinder to adjust the angle of the rotating pedal, so that the flexion and extension angle of the ankle joint during the squatting process of the user can be controlled, and the training effect is improved. DETAILED DESCRIPTION

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

[0024] Figure 2 It is a part of the three-dimensional structure schematic diagram of the application.

[0025] Figure 3 It is a three-dimensional structure sectional view of the guide mechanism of the application.

[0026] Figure 4 It is a three-dimensional structure schematic diagram of the guide mechanism of the application.

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

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

[0029] Figure 7 It is a second part of the three-dimensional structure schematic diagram of the balance mechanism of the application.

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

[0031] Figure 9 It is a second part of the structure schematic diagram of the pulling mechanism of the application.

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

[0033] Figure 11 The second part of the conversion mechanism of the present application is shown in the schematic diagram of the structure.

[0034] Figure 12 The third part of the conversion mechanism of the present application is shown in the schematic diagram of the structure.

[0035] Figure 13 The fourth part of the conversion mechanism of the present application is shown in the schematic diagram of the structure.

[0036] Figure 14 The schematic diagram of the structure of the conversion mechanism of the present application is shown in the schematic diagram of the structure.

[0037] Figure 15 The schematic diagram of the structure of the capture mechanism of the present application is shown in the schematic diagram of the structure.

[0038] Figure 16 The schematic diagram of the structure of the adjustment mechanism of the present application is shown in the schematic diagram of the structure.

[0039] In the figure, the names and serial numbers of the components are as follows: 1, mounting table; 11, support; 12, display unit; 13, signal processing module; 2, guiding mechanism; 20, main oil cylinder; 21, lifting platform; 22, linear guide rail; 23, sliding block; 24, sliding pedal; 3, balancing mechanism; 30, support seat; 31, vertical column; 32, stress sensor; 33, handle; 34, friction block; 4, pulling mechanism; 40, vertical frame; 41, anti-falling device; 42, safety belt; 43, waist 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, torsional spring; 54, pusher; 55, gear; 56, second fixed seat; 57, locking pin; 58, spring; 6, capture mechanism; 60, mounting frame; 61, camera; 7, adjustment mechanism; 70, third fixed seat; 71, auxiliary oil cylinder; 72, rotating pedal. DETAILED DESCRIPTION

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

[0041] A measuring device capable of corrective training of lower limb movement, as shown in Figures 1-16 , comprises a mounting table 1, a support 11, a display unit 12, a signal processing module 13, a guiding mechanism 2, a balancing mechanism 3, and a pulling mechanism 4, both sides of the mounting table 1 are connected with the supports 11, the upper parts of the supports 11 are connected with the display units 12, the lower parts of the supports 11 are connected with the signal processing modules 13, the display units 12 are connected with the signal processing modules 13 through wires, the mounting table 1 is provided with the guiding mechanism 2, the mounting table 1 is further provided with the balancing mechanism 3, and the mounting table 1 is further provided with the pulling mechanism 4.

[0042] As shown in Figure 1 ,Figure 3 And Figure 4 As shown in

[0043] As shown in Figure 1 , Figure 5 , Figure 6 And Figure 7 The balance mechanism 3 includes a support seat 30, a column 31, a stress sensor 32, a handle 33 and a friction block 34, the left side of the installation table 1 is connected with the support seat 30, the support seat 30 is connected with the column 31, the support seat 30 is connected with the stress sensor 32, the stress sensor 32 is connected with the signal processing module 13 through the wire, the column 31 is located in the stress sensor 32, the upper part of the column 31 is connected with the handle 33 in a sliding manner, and the handle 33 is connected with the friction block 34 in a rotating manner.

[0044] As shown in Figure 1 , Figure 5 , Figure 8 And Figure 9 The pulling mechanism 4 includes a stand 40, a fall arrestor 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 middle left side of the installation table 1 is connected with the stand 40, the upper part of the stand 40 is connected with the fall arrestor 41 in a rotating manner, the fall arrestor 41 is connected with the safety belt 42, the lower part of the safety belt 42 is connected with the waist belt 43, the waist belt 43 is made of flexible material, so as to improve the wearing comfort of the user, the left and right sides of the lower part of the fall arrestor 41 are connected with the extension frame 44, the left side of the left extension frame 44 is connected with the motor 45, the front part and the rear part of the extension frame 44 are connected with the traction wheel 46 in a rotating manner, the output shaft of the motor 45 is connected with the front traction wheel 46, the safety belt 42 is located between the traction wheels 46, and the traction wheel 46 is connected with a plurality of traction blocks 47.

[0045] When the application is used, first, the installation platform 1 is placed in the lower limb action training area, then the main oil cylinder 20 is started, the height of the lifting platform 21 is adjusted to adapt to the height adjustment in the process of the single-leg squatting action, after the adjustment is completed, the user places the squatting leg on the lifting platform 21, and places the other leg which 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 sliding block 23 to slide on the linear guide rail 22, thereby limiting the non-squatting leg to facilitate standardized evaluation. When the user has difficulty completing the single-leg squatting action, the handle 33 can be held to assist in maintaining the body posture, keeping the trunk perpendicular to the ground and the knee joint towards the toe, thereby enabling the user to maintain body balance and facilitate the completion of the training action. At this time, the hand will exert stress on the vertical rod in the left-right or front-back direction, and the stress of the vertical column 31 is detected through the stress sensor 32, and the stress measurement data of the vertical column 31 is collected and processed by the signal processing module 13. When the user needs to stabilize the handle 33 at a certain position, the friction block 34 can be pressed to move closer to the vertical column 31, thereby increasing the friction between the handle 33 and the vertical column 31 to stabilize the handle 33. When the user performs the single-leg squatting action, the waist belt 43 can be worn around the waist, and when the user falls, the safety belt 42 and the waist belt 43 are quickly lowered, so that the anti-falling device 41 locks the safety belt 42 to stop the user's falling action. When the user cannot stand up after squatting, the motor 45 on the extension frame 44 is started to rotate the traction wheel 46 on the front side, so that the traction block 47 pulls the safety belt 42 upward to assist the user to stand up, thereby playing a role in protecting the user from falling when squatting and being unable to stand up after squatting.

[0046] As shown in Figures 10-14 The installation platform 1 further comprises a conversion mechanism 5, the conversion mechanism 5 comprises a first fixed seat 50, a rotating frame 51, a rack 52, a torsional spring 53, a pushing piece 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 side of the middle part of the installation platform 1, the first fixed seat 50 is located on the left part of the linear guide rail 22, the rotating frame 51 is rotatably connected to the first fixed seat 50, the rack 52 is connected to the upper part of the rotating frame 51, two torsional springs 53 are connected between the rotating frame 51 and the first fixed seat 50, the pushing piece 54 is movably connected to the lower part of the rotating frame 51, the pushing piece 54 is slidingly connected to the installation platform 1 and is in extrusion fit with the lifting platform 21, the gear 55 is connected to the lower part of the sliding pedal 24, the second fixed seat 56 is connected to the upper side of the sliding block 23, the locking pin 57 is slidingly connected to the second fixed seat 56, the rear part of the locking pin 57 is arc-shaped to facilitate clamping, the locking pin 57 is in clamping fit with the sliding pedal 24, and the spring 58 is connected between the second fixed seat 56 and the locking pin 57.

[0047] The conversion mechanism 5 of the device can 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 extrudes the pusher 54 to move, and then pushes the rotating frame 51 to rotate, the torsional spring 53 is deformed, the rack 52 is in a horizontal state, then the sliding block 23 is moved, so that the rack 52 is engaged with the gear 55 to move, the sliding pedal 24 is rotated by 180°, the sliding pedal 24 is extruded to move forward when rotating, the spring 58 is extruded to contract, and when the sliding pedal 24 stops rotating, the spring 58 rebounds, so that the lock pin 57 is reset to be re-coupled with the sliding pedal 24, the sliding pedal 24 is fixed, then the lifting platform 21 is moved upward to adjust the height to be separated from the pusher 54, so that the torsional spring 53 is restored to reset the rotating frame 51 and the rack 52, so that the rack 52 is disengaged with the gear 55, then the user's body is rotated by 180°, and the other side of the lower limb is evaluated in the same way, so that the user can convert the squatting leg and the non-squatting leg, and the two legs can be trained.

[0048] As shown in Figure 1 and Figure 15 The device also includes a capturing mechanism 6. The capturing mechanism 6 includes a mounting frame 60 and a camera 61. The mounting frame 60 is connected to the right side of the mounting table 1, and the camera 61 is connected to the mounting frame 60. The camera 61 is also connected to the middle part of the support 11. The camera 61 is connected to the signal processing module 13 through a wire.

[0049] The capturing mechanism 6 of the device can capture the user's actions. When the user performs a single-leg squatting action, the camera 61 can take a full range of pictures of the user. The signal processing module 13 can process and analyze the data by collecting the measurement value of the vertical rod and the video of the camera 61. Finally, the vector X and the angle value are calculated. Then, the measurement value is displayed and prompted. Through a specific algorithm, the comprehensive score is evaluated, and the real-time training action correction guidance and training activity record are provided on the display unit 12. Thus, the user's single-leg squatting action can be monitored, and the user's action can be corrected.

[0050] As shown in Figure 1 and Figure 16 The device also includes an adjusting mechanism 7. The adjusting mechanism 7 includes a third fixed seat 70, a secondary oil cylinder 71, and a rotating pedal 72. The third fixed seat 70 is connected to the front and rear parts of the lifting platform 21. The secondary oil cylinder 71 is rotatably connected to the third fixed seat 70. The rotating pedal 72 is rotatably connected between the extension ends of the secondary oil cylinder 71.

[0051] The adjusting mechanism 7 of the device can adjust the flexion and extension angle of the ankle joint during squatting. The user places the squatting leg on the rotating pedal 72, and then starts the auxiliary oil cylinder 71 to adjust the angle of the rotating pedal 72, thereby controlling the flexion and extension angle of the ankle joint during squatting, and improving the training effect.

[0052] The above description is only an example of the present application and is not intended to limit the present application. Any equivalent replacement within the principles of the present application shall be included in the protection scope of the present application. The contents not described in detail in the present application are the prior art known to those skilled in the art.

Claims

1. A measuring device capable of corrective training of lower limb movements, characterized in that: 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 mounting platform (1) is connected to the bracket (11) on both the front and back sides. The upper part of the bracket (11) is connected to the display unit (12), and 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 equipped with a guiding mechanism (2) that can guide the user to perform standardized actions. The mounting platform (1) is also equipped with a balancing mechanism (3) that can help the user maintain body balance. The mounting platform (1) is also equipped with a pulling mechanism (4) that can prevent the user from falling. The guiding mechanism (2) includes a main hydraulic cylinder (20), a lifting platform (21), a linear guide rail (22), a slider (23), and a sliding pedal (24). The main hydraulic cylinder (20) is connected to the lower left of the mounting platform (1). The lifting platform (21) is connected to the telescopic end of the main hydraulic 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 part 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 main hydraulic 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. After adjustment, the user places the squatting leg on the lifting platform (21) and then places the non-squatting leg on the sliding pedal (24). When the user performs the single-leg squatting action, the non-squatting leg slides forward and pushes the slider (23) to slide on the linear guide rail (22).

2. The measuring device for corrective training of lower limb movements according to claim 1, characterized in that: The sliding pedal (24) has top plates on both the front and rear sides.

3. The measuring device for corrective training of lower limb movements according to claim 1, characterized in that: 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 column (31) is connected to the support base (30). The stress sensor (32) is connected to the support base (30). The stress sensor (32) is connected to the signal processing module (13) via a wire. The column (31) is located inside the stress sensor (32). The handle (33) is slidably connected to the upper part of the column (31). The friction block (34) is rotatably connected to the handle (33). Holding the handle (33) helps maintain the body posture and keeps the knee joint in the direction of the toes. At this time, the hand will apply stress to the column in the left-right or front-back direction. The stress sensor (32) detects the stress of the column (31). The signal processing module (13) collects the stress measurement data of the column (31) for processing and analysis.

4. The measuring device for corrective training of lower limb movements according to claim 3, characterized in that: The traction mechanism (4) includes a stand (40), a fall arrestor (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 of the mounting platform (1). The fall arrestor (41) is rotatably connected to the upper part of the stand (40). The safety belt (42) is wrapped around the fall arrestor (41). The waist belt (43) is connected to the lower part of the safety belt (42). The extension frame (44) is connected to the lower sides of both the left and right sides of the fall arrestor (41). The motor (45) is connected to the left side of the left extension frame (44). The front and rear of the extension frames (44) are rotatably connected. The device is equipped with a traction wheel (46), and 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). Multiple traction blocks (47) are connected to each traction wheel (46). The waist belt (43) is worn around the waist. When the user falls, the safety belt (42) and waist belt (43) fall quickly, causing the fall arrestor (41) to lock 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, which drives the traction wheel (46) on the front side to rotate, causing the traction blocks (47) to pull the safety belt (42) upward to assist the user in standing up.

5. A measuring device capable of corrective training of lower limb movements according to claim 4, characterized in that: The belt (43) is made of flexible material.

6. A measuring device capable of corrective training of lower limb movements according to claim 4, characterized in that: It also includes a conversion mechanism (5), which 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 locking 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 rotating frame (51) is rotatably connected to the first fixed seat (50). A rack (52) is connected to the rotating frame (51). Multiple 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 pressed against 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). (57) engages with the sliding pedal (24). A spring (58) connects the second fixed seat (56) and the locking pin (57), causing the lifting platform (21) to move downwards and reset, causing the lifting platform (21) to press the pusher (54) to move, thereby pushing the rotating frame (51) to rotate. The torsion spring (53) deforms, causing the rack (52) to be in a horizontal state. Then, the slider (23) moves, causing the rack (52) to mesh with the gear (55), causing the sliding pedal (24) to rotate 180°. When the plate (24) rotates, it presses the locking pin (57) to move forward, and the spring (58) is compressed and contracted. When the sliding pedal (24) stops rotating, the spring (58) rebounds, so that the locking pin (57) resets and re-engages with the sliding pedal (24) to fix the sliding pedal (24). Then, the lifting platform (21) moves up to adjust the height and disengages from the pusher (54), so that the torsion spring (53) returns to its original state, driving the rotating frame (51) and rack (52) to reset, so that the rack (52) disengages from the gear (55).

7. A measuring device capable of corrective training of lower limb movements according to claim 6, characterized in that: The rear part of the locking pin (57) is arc-shaped.

8. A measuring device capable of corrective training of lower limb movements according to claim 6, characterized in that: 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 camera (61) is also connected to the middle of the bracket (11). The camera (61) is connected to the signal processing module (13) by wires. The camera (61) takes pictures of the user from all directions. The signal processing module (13) processes and analyzes the data by collecting the measurement values ​​of the pole and the video of the camera (61), and finally calculates the vector X and the angle values. Then, the measurement values ​​are displayed and prompted, and the display unit (12) provides corrective guidance for real-time training actions and records of training activities.

9. A measuring device for corrective training of lower limb movements according to claim 8, characterized in that: It 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 connected to the third fixed seat (70), and the auxiliary oil cylinder (71) is rotatably connected to the third fixed seat (70). The rotating pedal (72) is rotatably connected between the extension and retraction ends of the auxiliary oil cylinder (71), so that the user can place his 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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