Leg strength training device and evaluation system

Abstract

The invention provides a leg strength training device and evaluation system, and relates to the technical field of physical training technology.The leg strength training device comprises a base, and a leaning-adjustable seat is arranged on the base; the training mechanism is arranged on the base, and the training mechanism is used for training the legs of a trainee; the training mechanism comprises a fixed seat, a treading frame and an elastic piece for connecting the treading frame with the fixed seat; the pedal further comprises an angle adjusting structure, and the angle adjusting structure enables the pedal frame to be movably connected with the elastic piece. Through the arrangement of the angle adjusting structure, the angle of the treading frame can be adjusted, so that the device can meet the requirements of different sitting postures of trainees, and the problems that when the trainees are in the same sitting posture for leg training for a long time, the trainees are prone to fatigue, and the training effect is poor are solved; and therefore, the training experience of trainees is improved, the training effect is improved, and effective training of leg strength of the trainees is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of sports training, and particularly to a leg strength training device and an evaluation system. Background Art

[0002] After an athlete undergoes surgery for a leg injury, in order to promote the recovery of the leg injury, it is often necessary to use a rehabilitation training device to carry out leg strength training.

[0003] However, when using the common leg strength training devices on the market at present, athletes usually step on a pedal with their feet and rely on the leg strength to perform the stepping action. However, in the actual training process, the angles of the stepping frames of these devices are mostly fixed and non-adjustable. In the sports training scenario, the sitting postures of athletes vary due to factors such as personal habits, physical recovery stages, and training venue conditions. When the sitting posture changes, the fixed-angle stepping frame makes it difficult for the athlete's feet to pass through it smoothly for training. This leads to poor applicability of the training device, and athletes cannot carry out training conveniently in different sitting postures. As a result, the training effect is greatly reduced, and the training experience of athletes is also very poor, which is extremely unfavorable for the effective recovery and improvement of the athlete's leg strength. Summary of the Invention

[0004] To solve the deficiencies of the above prior art, the present invention provides a leg strength training device and an evaluation system.

[0005] The technical solution of the present invention is realized as follows:

[0006] A leg strength training device, comprising:

[0007] A base, on which a seat with adjustable leaning is provided;

[0008] A training mechanism, which is arranged on the base and is used for training the legs of the training personnel;

[0009] The training mechanism includes a fixed seat, a stepping frame, and an elastic member connecting the stepping frame and the fixed seat;

[0010] It further includes an angle adjustment structure, which movably connects the stepping frame and the elastic member, and the angle adjustment structure is used to adjust the angle of the stepping frame.

[0011] Preferably, the elastic member includes an installation cavity opened inside the fixed seat, a pressing plate is arranged in the installation cavity, a return spring is connected between one side of the pressing plate and the bottom of the installation cavity, and a connecting column extending outside the fixed seat is installed on the other side.

[0012] Preferably, the angle adjustment structure includes a notch formed at one end of the connecting column, a mounting bracket fixed to one side of the fixed seat, and a rotating arm mounted at the bottom of the stepping frame. One end of the rotating arm is located in the notch, and a rotating shaft is installed between the rotating arm and the notch. One end of the rotating shaft is provided with a driven gear, a second motor is installed on the mounting bracket, and a driving gear meshing with the driven gear is installed on the main shaft of the second motor.

[0013] Preferably, it further includes a resistance adjustment structure. The resistance adjustment structure includes a damper installed in the installation cavity and a control valve provided on the damper. One end of the damper is fixedly connected to the middle of one side of the pressing plate. An opening communicating with the installation cavity is formed on one side of the fixed seat, and a detachable cover plate is installed on the side wall of the fixed seat.

[0014] Preferably, a massage structure is further provided on the stepping frame. The massage structure includes a pedal provided in the stepping frame. A soft pad is provided on the top of the pedal, and a plurality of evenly distributed massage rollers are rotatably installed at the bottom of the pedal.

[0015] Preferably, insertion blocks are installed on both sides of the pedal. Insertion slots matching the insertion blocks are formed on both sides of the inner wall of the stepping frame. Threaded holes for screwing the locking bolts are formed on the insertion blocks.

[0016] Preferably, a lifting mechanism for adjusting the height of the seat is provided on the base. The lifting mechanism includes a hydraulic cylinder installed on the top of the base and four telescopic auxiliary support rods. The hydraulic cylinder is located between the four auxiliary support rods, and the hydraulic cylinder and the tops of the four auxiliary support rods are commonly connected to the bottom of the seat.

[0017] Further preferably, an adjustment mechanism for adjusting the horizontal position of the training mechanism is further provided on the base. The adjustment mechanism includes a first motor installed on the top of the base and two support blocks. A lead screw is rotatably installed between the two support blocks, and a lead screw seat is provided on the lead screw. The fixed seat is installed on the top of the lead screw seat, and the main shaft of the first motor is connected to one end of the lead screw.

[0018] More preferably, a slide rail is further installed on the top of the base. A chute matching the slide rail is formed at the bottom of the lead screw seat.

[0019] A leg strength training evaluation system includes the above-mentioned leg strength training device and an evaluation unit worn on the legs of the training personnel. The evaluation unit includes:

[0020] A data acquisition module, which acquires the leg strength training data information of the training personnel.

[0021] A data feature extraction module, which is used to extract useful features from the collected leg strength training data information of the training personnel.

[0022] An evaluation model establishment and processing module, which is used to train the extracted useful features, evaluate and verify the trained model using a validation dataset, and then adjust the model parameters and hyperparameters according to the evaluation results to optimize the performance and generalization ability of the model.

[0023] A model application and evaluation module, which evaluates the input leg strength training data information of the training personnel through the model trained by the evaluation model establishment and processing module and gives corresponding evaluation results.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. When the present invention is in use, through the setting of the angle adjustment structure, the stepping frame can be rotated to an angle that meets the sitting posture requirements of the training personnel, so as to realize the adjustable angle of the stepping frame, enabling the device to meet the needs of different sitting postures of the training personnel, avoiding the problem that the training personnel are prone to fatigue and poor training effect when staying in the same sitting posture for a long time during leg training, and thus being beneficial to improving the training experience of the training personnel, enhancing the training effect, and facilitating the effective training of the leg strength of the training personnel.

[0026] 2. When the present invention is in use, through the setting of the resistance adjustment structure, different magnitudes of resistance can be added to the stepping frame, so as to realize the adjustable resistance of the training mechanism, facilitating the training personnel to select the corresponding magnitude of resistance according to their own leg recovery conditions, and further enabling the training device to meet the needs of different intensities, further improving the applicability of the training device, being beneficial to the training of the leg strength of the training personnel, and promoting the recovery of leg diseases.

[0027] 3. When the present invention is in use, through the setting of the massage structure, it can play a role in cushioning the soles of the feet of the training personnel to avoid the situation that the training personnel's feet are in pain due to stepping on the pedals for a long time, thus facilitating the training of the leg strength of the training personnel and further enhancing the training experience;

[0028] And by using the insertion blocks, slots and locking bolts, the disassembly of the pedal can be realized, facilitating the replacement of the pedal surface, and then the soles of the feet can be massaged by the massage rollers to relieve the fatigue of the feet, thus facilitating the training of the leg strength of the training personnel. Description of the Drawings

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 Structural schematic diagram of the leg strength training device provided by the present invention;

[0031] Figure 2 is Figure 1 appearance view of;

[0032] Figure 3 is Figure 1 rear view of;

[0033] Figure 4 is Figure 3 structural schematic diagram after the second motor in is disassembled;

[0034] Figure 5 is Figure 2 structural schematic diagram of the pedal frame in;

[0035] Figure 6 is Figure 5 exploded view of;

[0036] Figure 7 is Figure 6 structural schematic diagram of the pedal in;

[0037] Figure 8 is Figure 3 enlarged view at position A in;

[0038] Figure 9 is Figure 4 enlarged view at position B in;

[0039] Figure 10 Block diagram of the structure of the evaluation unit in the leg strength training evaluation system provided by the present invention.

[0040] In the figure:

[0041] 1. Base; 2. Seat;

[0042] 3. Lifting mechanism; 31. Hydraulic cylinder; 32. Auxiliary support rod;

[0043] 4. Training mechanism; 41. Fixed seat; 42. Connecting column; 43. Pressing plate; 44. Return spring; 45. Pedal frame;

[0044] 5. Adjusting mechanism; 51. First motor; 52. Support block; 53. Lead screw; 54. Slide rail;

[0045] 6. Massage structure; 61. Pedal; 62. Soft pad; 63. Massage roller; 64. Slot; 65. Locking bolt; 66. Insert block;

[0046] 7. Resistance adjustment structure; 71. Damper; 72. Control valve; 73. Cover plate;

[0047] 8. Angle adjustment structure; 81. Mounting bracket; 82. Second motor; 83. Driven gear; 84. Rotating arm; 85. Main gear. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0049] The present invention provides the following embodiments:

[0050] Embodiment 1:

[0051] Please refer to Figures 1 - 4 and Figure 8 and Figure 9 As shown, a leg strength training device includes:

[0052] A base 1, on which a seat 2 with adjustable leaning is provided;

[0053] A training mechanism 4, which is arranged on the base 1 and is used to train the legs of the training personnel;

[0054] The training mechanism 4 includes a fixed seat 41, a stepping frame 45, and an elastic member connecting the stepping frame 45 and the fixed seat 41; the elastic member includes a mounting cavity opened inside the fixed seat 41, a pressing plate 43 is arranged in the mounting cavity, a return spring 44 is connected between one side of the pressing plate 43 and the bottom of the mounting cavity, and a connecting column 42 extending outside the fixed seat 41 is installed on the other side;

[0055] It further includes an angle adjustment structure 8, the angle adjustment structure 8 movably connects the stepping frame 45 and the elastic member, and the angle adjustment structure 8 is used to adjust the angle of the stepping frame 45;

[0056] The angle adjustment structure 8 includes a notch opened at one end of the connecting column 42, a mounting bracket 81 fixed to one side of the fixed seat 41, and a rotating arm 84 mounted at the bottom of the stepping frame 45. One end of the rotating arm 84 is located in the notch, and a rotating shaft is installed between the rotating arm 84 and the notch. One end of the rotating shaft is equipped with a driven gear 83. A second motor 82 is installed on the mounting bracket 81, and a driving gear 85 meshing with the driven gear 83 is installed on the main shaft of the second motor 82.

[0057] Through the above, when the trainer conducts leg strength training, the trainer can sit on the seat 2, step on the stepping frame 45 with the feet, and then use the legs to step down forcefully, so that the stepping frame 45 pushes the connecting column 42 into the installation cavity in the fixed seat 41. At this time, the connecting column 42 pushes the pressure plate 43 to move along the installation cavity and compresses the return spring 44, causing the return spring 44 to contract. At the same time, the return spring 44 pushes the pressure plate 43 upward to reset under the action of its own elasticity, and pushes the stepping frame 45 to reset through the connecting column 42, thereby forming resistance. Then the trainer steps on and off in such a cycle to achieve leg strength training and promote the recovery of leg injuries.

[0058] And during training, the angle of the stepping frame 45 can be adjusted according to the sitting posture of the trainer. That is, when the trainer adjusts the leaning of the seat 2 and adjusts the sitting posture, the second motor 82 can be driven to rotate the driving gear 85, so that the driving gear 85 drives the driven gear 83 meshing with it to rotate. Subsequently, the driven gear 83 drives the rotating arm 84 to rotate through the rotating shaft, and then the rotating arm 84 drives the stepping frame 45 to rotate until the stepping frame 45 rotates to an angle that meets the sitting posture requirements of the trainer, thus realizing the adjustable angle of the stepping frame 45, enabling the device to meet the needs of different sitting postures of the trainer, avoiding the problem that the trainer is prone to fatigue and the training effect is poor when staying in the same sitting posture for a long time during leg training, and further being beneficial to improving the training experience of the trainer, enhancing the training effect, and facilitating the effective training of the trainer's leg strength.

[0059] It should be noted that the seat 2 in this embodiment is a common adjustable seat in the prior art, and its leaning structure and adjustment method are both prior art, so they will not be described in detail in this embodiment.

[0060] Furthermore, in this embodiment, as Figures 1 - 4 shown, a lifting mechanism 3 for adjusting the height of the seat 2 is provided on the base 1. The lifting mechanism 3 includes a hydraulic cylinder 31 installed on the top of the base 1 and four telescopic auxiliary support rods 32. The hydraulic cylinder 31 is located between the four auxiliary support rods 32, and the hydraulic cylinder 31 and the tops of the four auxiliary support rods 32 are jointly connected to the bottom of the seat 2.

[0061] When the trainer is performing leg strength training, the hydraulic cylinder 31 can drive the seat 2 to rise and fall. At the same time, the auxiliary support rod 32 expands and contracts accordingly and provides auxiliary support for the seat 2, thereby realizing the height adjustment of the seat 2, enabling the device to meet the needs of trainers of different heights, greatly improving the applicability of the device, and further facilitating the use of the training device.

[0062] Meanwhile, in this embodiment, as Figures 1 - 4 shown, an adjustment mechanism 5 for adjusting the horizontal position of the training mechanism 4 is further provided on the base 1. The adjustment mechanism 5 includes a first motor 51 installed on the top of the base 1 and two support blocks 52. A lead screw 53 is rotatably installed between the two support blocks 52, and a lead screw seat is provided on the lead screw 53. The fixed seat 41 is installed on the top of the lead screw seat, and the main shaft of the first motor 51 is connected to one end of the lead screw 53.

[0063] When the trainer is performing leg strength training, the first motor 51 can be driven to rotate the lead screw 53, so that the lead screw 53 drives the fixed seat 41 to move through the lead screw seat, so as to drive the entire training mechanism 4 to move horizontally along the base 1, thereby adjusting the distance between the training mechanism 4 and the seat 2, further facilitating the training of trainers of different heights, further improving the applicability of the device, and facilitating the use of the device.

[0064] Furthermore, in this embodiment, in order to ensure that the lead screw 53 drives the training mechanism 4 to move stably through the lead screw seat, as Figures 1 - 4 shown, a slide rail 54 is further installed on the top of the base 1, and a chute matching the slide rail 54 is opened at the bottom of the lead screw seat.

[0065] Embodiment Two:

[0066] On the basis of Embodiment One, please refer to Figure 1 and Figure 2 shown, a leg strength training device further includes a resistance adjustment structure 7. The resistance adjustment structure 7 includes a damper 71 installed in the installation cavity and a control valve 72 provided on the damper 71. One end of the damper 71 is fixedly connected to the middle of one side of the pressing plate 43. An opening communicating with the installation cavity is opened on one side of the fixed seat 41, and a detachable cover plate 73 is installed on the side wall of the fixed seat 41.

[0067] During the leg strength training of the trainee, when the trainee steps on the pedal frame 45 with his foot, so that the connecting column 42 pushes the pressure plate 43 to squeeze the return spring 44, the pressure plate 43 squeezes the damper 71 at the same time, so that the damper 71 contracts and forms resistance to the movement of the pressure plate 43, thereby increasing the resistance of the pedal frame 45, so that the trainee needs to exert more force when performing leg training, and the cover plate 73 can be removed from the fixed seat 41, and the resistance of the damper 71 can be adjusted by the control valve 72, so as to add different sizes of resistance to the pedal frame 45, thereby realizing the adjustable resistance of the training mechanism 4, which is convenient for the trainee to choose the corresponding size of resistance according to his own leg recovery condition, so that the training device can meet the needs of different strengths, further improve the applicability of the training device, and is conducive to the leg strength training of the trainee and promotes the recovery of leg diseases.

[0068] Embodiment three:

[0069] Based on Example 1, please refer to Figure 1 ,as well as Figures 5 - 7 As shown, a massage structure 6 is also provided on the pedal frame 45, and the massage structure 6 includes a pedal 61 provided in the pedal frame 45, a cushion 62 is provided on the top of the pedal 61, and a plurality of evenly distributed massage rollers 63 are rotatably mounted on the bottom of the pedal 61.

[0070] Furthermore, plug blocks 66 are installed on both sides of the pedal 61, slots 64 matching with the plug blocks 66 are provided on both sides of the inner wall of the pedal frame 45, and screw holes are provided on both sides of the pedal frame 45, and locking bolts 65 are screwed into the screw holes, and threaded holes for screwing the locking bolts 65 are provided on the plug blocks 66.

[0071] When the trainee steps on the pedal frame 45 with his feet, the feet can step on the pedal 61. At this time, the soft pad 62 can play a role of cushioning the soles of the trainee's feet, so as to avoid the trainee's feet from feeling pain due to the trainee's feet stepping on the pedal 61 for a long time, thereby facilitating the trainee's leg strength training and further improving the training experience;

[0072] After the training, the locking bolt 65 can be unscrewed from the threaded hole, and then the pedal 61 can be pulled upward. At this time, the plug blocks 66 on both sides of the pedal 61 slide along the slot 64, so that the pedal 61 is removed from the pedal frame 45, and then the pedal 61 is turned over so that the side of the pedal 61 with the massage roller 63 faces upward, and the pedal 61 is inserted into the pedal frame 45 through the plug block 66 and the slot 64, and the locking bolt 65 is screwed into the threaded hole to screw the pedal 61 into the pedal frame 45 to complete the installation of the pedal 61. Then the trainee can massage the soles of their feet with the massage roller 63 to relieve foot fatigue, thereby facilitating the trainee's leg strength training.

[0073] In addition, as Figures 1 - 10 shown, the present invention also provides a leg strength training evaluation system, which includes the leg strength training device in the above embodiment, and an evaluation unit worn on the legs of the training personnel. The evaluation unit includes:

[0074] A data acquisition module, which acquires the leg strength training data information of the training personnel;

[0075] A data feature extraction module, which is used to extract useful features from the acquired leg strength training data information of the training personnel;

[0076] An evaluation model establishment and processing module, which is used to train the extracted useful features, evaluate and verify the trained model using a validation data set, and then adjust the model parameters and hyperparameters according to the evaluation results to optimize the performance and generalization ability of the model;

[0077] A model application and evaluation module, which evaluates according to the input leg strength training data information of the training personnel through the model trained by the evaluation model establishment and processing module, and gives the corresponding evaluation results.

[0078] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A leg strength training device, characterized in that, Comprising: A base (1) with a seat (2) that can be adjusted by leaning on it provided thereon. A training mechanism (4) provided on the base (1) and used for training the legs of the trainees. The training mechanism (4) includes a fixed seat (41), a stepping frame (45), and an elastic member connecting the stepping frame (45) and the fixed seat (41). It further includes an angle adjustment structure (8) that movably connects the stepping frame (45) and the elastic member, and the angle adjustment structure (8) is used to adjust the angle of the stepping frame (45).

2. The leg strength training device according to claim 1, wherein: The elastic member includes an installation cavity opened inside the fixed seat (41). A pressing plate (43) is provided in the installation cavity. A return spring (44) is connected between one side of the pressing plate (43) and the bottom of the installation cavity, and a connecting column (42) extending outside the fixed seat (41) is installed on the other side.

3. The leg strength training device according to claim 2, characterized in that: The angle adjustment structure (8) includes a notch opened at one end of the connecting column (42), a mounting frame (81) fixed on one side of the fixed seat (41), and a rotating arm (84) installed at the bottom of the stepping frame (45). One end of the rotating arm (84) is located in the notch and a rotating shaft is installed between it and the notch. A driven gear (83) is installed at one end of the rotating shaft. A second motor (82) is installed on the mounting frame (81), and a driving gear (85) meshing with the driven gear (83) is installed on the main shaft of the second motor (82).

4. The leg strength training device according to claim 2, characterized in that: It further includes a resistance adjustment structure (7). The resistance adjustment structure (7) includes a damper (71) installed in the installation cavity and a control valve (72) provided on the damper (71). One end of the damper (71) is fixedly connected to the middle of one side of the pressing plate (43). An opening communicating with the installation cavity is opened on one side of the fixed seat (41), and a detachable cover plate (73) is installed on the side wall of the fixed seat (41).

5. The leg strength training device according to claim 1, wherein: A massage structure (6) is further provided on the stepping frame (45). The massage structure (6) includes a pedal (61) provided inside the stepping frame (45). A soft pad (62) is provided on the top of the pedal (61), and a plurality of evenly distributed massage rollers (63) are rotatably installed at the bottom of the pedal (61).

6. The leg strength training device according to claim 5, wherein: Plug blocks (66) are installed on both sides of the pedal (61). Slots (64) matching the plug blocks (66) are opened on both sides of the inner wall of the stepping frame (45). Threaded holes for screwing the locking bolts (65) are opened on both sides of the stepping frame (45). Threaded holes for screwing the locking bolts (65) are opened on the plug blocks (66).

7. The leg strength training device according to claim 1, characterized in that: A lifting mechanism (3) for adjusting the height of the seat (2) is provided on the base (1). The lifting mechanism (3) includes a hydraulic cylinder (31) installed at the top of the base (1) and four telescopic auxiliary support rods (32). The hydraulic cylinder (31) is located between the four auxiliary support rods (32), and the hydraulic cylinder (31) and the tops of the four auxiliary support rods (32) are commonly connected to the bottom of the seat (2).

8. The leg strength training device according to claim 1, characterized in that: An adjustment mechanism (5) for adjusting the horizontal position of the training mechanism (4) is further provided on the base (1). The adjustment mechanism (5) includes a first motor (51) installed at the top of the base (1) and two support blocks (52). A lead screw (53) is rotatably installed between the two support blocks (52), and a lead screw seat is provided on the lead screw (53). The fixed seat (41) is installed on the top of the lead screw seat, and the main shaft of the first motor (51) is connected to one end of the lead screw (53).

9. The leg strength training device according to claim 8, characterized in that: A slide rail (54) is further installed on the top of the base (1), and a chute matching the slide rail (54) is opened at the bottom of the lead screw seat.

10. A leg strength training and evaluation system, characterized in that, It includes the leg strength training device according to any one of claims 1-9, and an evaluation unit worn on the legs of the trainee. The evaluation unit includes: A data acquisition module, which acquires the leg strength training data information of the trainee. A data feature extraction module, which is used to extract useful features from the acquired leg strength training data information of the trainee. An evaluation model establishment and processing module, which is used to train the extracted useful features, evaluate and verify the trained model using a validation data set, and then adjust the model parameters and hyperparameters according to the evaluation results to optimize the performance and generalization ability of the model. A model application and evaluation module, which evaluates the input leg strength training data information of the trainee through the model trained by the evaluation model establishment and processing module and gives corresponding evaluation results.

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