Intelligent lower limb reciprocating type strength training device

Abstract

The utility model discloses a kind of intelligent lower limbs reciprocating type strength training equipment, including training frame, the top of training frame is fixedly connected with cushion, the side of cushion is fixedly connected with movable frame, the side of movable frame is installed with backrest, the top of training frame is away from the side of cushion and is equipped with mounting groove, the top of training frame is movably connected with sliding frame by mounting groove, the front of training board is equipped with sliding slot, the front and back of sliding frame are fixedly connected with displacement sensor, the inner wall of mounting groove is equipped with moving groove, the inner side of mounting groove is fixedly connected with tension sensor, the side of tension sensor is fixedly connected with telescopic link, one end of telescopic link is fixedly connected with tension spring. Through the tension sensor, telescopic link and displacement sensor set, improve training effect, so that lower limbs reciprocating type strength training equipment can be intelligently adjusted according to the power change of trainer, avoid the damage caused to trainer in training process.

Description

Technical Field

[0001] This utility model relates to the field of strength training equipment technology, specifically to an intelligent lower limb reciprocating strength training device. Background Technology

[0002] With the development of society and the economy, people are paying more and more attention to health and physical fitness. Fitness is gradually becoming a mainstream lifestyle. Whether it is professional athletes improving their competitive level, ordinary fitness enthusiasts shaping their bodies and enhancing their physique, or rehabilitation patients restoring lower limb function, there is an urgent need for efficient and scientific lower limb strength training equipment.

[0003] Existing patent document CN108261717B discloses an intelligent lower limb reciprocating strength training device, including a pedal, a chassis, an action execution mechanism, and a resistance generating mechanism. The action execution mechanism includes a front bearing housing, a support shaft, a first rocker arm and a second rocker arm symmetrically arranged at the bottom of the front and rear ends of the pedal, with their left ends respectively connected to the front and rear ends of the support shaft, a drive motor, a driving wheel mounted on the output shaft of the drive motor, a driven wheel meshing with the driving wheel via a synchronous belt, a drive shaft passing through and mounted on the driven wheel, a rear bearing housing, a first crank and a second crank symmetrically arranged at the front and rear ends of the drive shaft, a first connecting rod, and a second connecting rod. The resistance generating mechanism includes a friction wheel sleeved on the drive shaft and a friction wheel control motor mounted on the chassis and in contact with the friction wheel. This invention assists users in lower limb muscle activity and strength training, and features a simple structure, small size, and flexible mobility, making it suitable for training in various home environments.

[0004] However, existing lower limb reciprocating strength training equipment lacks personalized adjustment during use. Due to the significant differences in physical conditions, athletic abilities, and training goals among individuals, lower limb reciprocating strength training equipment cannot intelligently adjust according to changes in the trainee's strength, resulting in poor training effects and the risk of injury to the trainee. Therefore, we propose an intelligent lower limb reciprocating strength training device. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides an intelligent lower limb reciprocating strength training device to solve the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an intelligent lower limb reciprocating strength training device, comprising a training frame, a seat cushion fixedly connected to the top of the training frame, a movable frame fixedly connected to one side of the seat cushion, a backrest installed on one side of the movable frame, an installation groove on the top of the training frame away from the seat cushion, a sliding frame movably connected to the top of the training frame via the installation groove, a training plate movably connected to the inner side of the sliding frame via a movable shaft, a sliding groove on the front of the training plate, displacement sensors fixedly connected to both the front and back of the sliding frame, a moving groove on the inner wall of the installation groove, a tension sensor fixedly connected to the inner side of the installation groove, a telescopic rod fixedly connected to one side of the tension sensor, and a tension spring fixedly connected to one end of the telescopic rod.

[0009] Preferably, support legs are fixedly connected to the four corners of the bottom of the training frame, and adjustment brackets are fixedly connected to the front and back of the support legs. An adjustment shaft is movably connected through the front of the adjustment bracket, and an adjustment rod is movably connected to the inner side of the adjustment bracket through the adjustment shaft.

[0010] Preferably, both the front and back of the backrest are fixedly connected with movable pins, and the movable pins are fixedly connected to the adjusting rod.

[0011] Preferably, a movable shaft is movably connected through the front of the sliding frame, and fixing screws are threadedly connected to both the front and back of the sliding frame.

[0012] Preferably, the front of the training board is movably connected to a leg via a sliding groove, and a foot groove is provided on one side of the leg.

[0013] Preferably, a tension frame is fixedly connected to one side of the sliding frame, and a connecting shaft is fixedly connected to the inner side of the tension frame, and the connecting shaft is fixedly connected to the tension spring.

[0014] (III) Beneficial Effects

[0015] This utility model provides an intelligent reciprocating strength training device for the lower limbs, which has the following beneficial effects:

[0016] This intelligent lower limb reciprocating strength training equipment, equipped with a tension sensor, telescopic rod, and displacement sensor, allows the user to use the device. The user sits on the cushion and activates the adjustment rod. The adjustment rod pushes the backrest via a movable pin, and simultaneously moves via an adjustment bracket and adjustment shaft. The backrest moves upward via a movable frame, allowing the user to lean against it and place their feet in the foot slots of the footrest. At this point, the lower limbs apply a pushing force to the training board, which slides within a mounting slot via a sliding frame. Simultaneously, the connecting shaft pulls the tension spring to extend. The tension spring pulls the tension sensor via the telescopic rod, which detects the lower limb training strength. Simultaneously, the displacement sensor detects the position of the sliding frame. When the displacement sensor detects that the training board's movement distance is too short to meet the target, one or more telescopic rods are activated, thereby releasing the tension spring and reducing the force of the tension spring pulling the sliding frame. This adjusts the tension generated by an appropriate number of tension springs, thus improving the training effect. This allows the lower limb reciprocating strength training equipment to intelligently adjust according to the trainee's strength changes, preventing injuries during training. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial structural schematic diagram of the training board of this utility model;

[0019] Figure 3 This is a partial structural schematic diagram of the backrest of this utility model;

[0020] Figure 4 This is a partial structural schematic diagram of the training rack of this utility model.

[0021] In the diagram: 1. Training frame; 2. Support leg; 3. Adjustable bracket; 4. Adjustable shaft; 5. Adjustable rod; 501. Movable pin; 6. Seat cushion; 7. Movable frame; 8. Backrest; 9. Mounting slot; 901. Moving slot; 902. Tension sensor; 903. Telescopic rod; 10. Sliding frame; 11. Movable shaft; 12. Tension frame; 13. Connecting shaft; 14. Tension spring; 15. Fixing screw; 16. Training board; 17. Sliding slot; 18. Leg; 19. Foot groove; 20. Displacement sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: an intelligent lower limb reciprocating strength training device, including a training frame 1, a seat cushion 6 fixedly connected to the top of the training frame 1, a movable frame 7 fixedly connected to one side of the seat cushion 6, a backrest 8 installed on one side of the movable frame 7, an installation groove 9 opened on the top of the training frame 1 away from the seat cushion 6, a sliding frame 10 movably connected to the top of the training frame 1 through the installation groove 9, a sliding groove 17 opened on the front of the training board 16, displacement sensors 20 fixedly connected to both the front and back of the sliding frame 10, a moving groove 901 opened on the inner wall of the installation groove 9, a tension sensor 902 fixedly connected to the inner side of the installation groove 9, a telescopic rod 903 fixedly connected to one side of the tension sensor 902, and a tension spring 14 fixedly connected to one end of the telescopic rod 903.

[0024] Furthermore, support legs 2 are fixedly connected to the four corners of the bottom of the training frame 1. Adjustment brackets 3 are fixedly connected to the front and back of the support legs 2. An adjustment shaft 4 is movably connected through the front of the adjustment bracket 3. An adjustment rod 5 is movably connected to the inner side of the adjustment bracket 3 through the adjustment shaft 4. The support legs 2 make the training equipment more stable. By activating the adjustment rod 5, the adjustment rod 5 pushes the backrest 8 through the movable pin 501. At the same time, the adjustment rod 5 can move through the adjustment bracket 3 and the adjustment shaft 4.

[0025] Furthermore, movable pins 501 are fixedly connected to both the front and back of the backrest 8. The movable pins 501 are fixedly connected to the adjusting rod 5. The adjusting rod 5 can be adjusted during operation through the movable pins 501, thereby ensuring that the adjusting rod 5 can push the backrest 8 to adjust.

[0026] Furthermore, a movable shaft 11 is movably connected through the front of the sliding frame 10. Both the front and back of the sliding frame 10 are threaded with fixing screws 15. The inner side of the sliding frame 10 is movably connected to a training plate 16 via the movable shaft 11. By loosening the fixing screws 15, the trainee can push the training plate 16. The angle of the training plate 16 and the sliding frame 10 can be adjusted via the movable shaft 11. After adjustment, tightening the fixing screws 15 will complete the installation.

[0027] Furthermore, a footrest 18 is movably connected to the front of the training board 16 via a sliding groove 17. A foot groove 19 is provided on one side of the footrest 18. The footrest 18 can slide up and down via the sliding groove 17, making the trainee more comfortable during training.

[0028] Furthermore, a tension frame 12 is fixedly connected to one side of the sliding frame 10, and a connecting shaft 13 is fixedly connected to the inner side of the tension frame 12. The connecting shaft 13 is fixedly connected to the tension spring 14. The connecting shaft 13 facilitates the trainee to install the tension spring 14 and enables the connecting shaft 13 to better pull the tension spring 14.

[0029] Working Principle: After installation, first check the installation, fixation, and safety features of this utility model. When using the lower limb reciprocating strength training equipment, the trainee sits on the seat cushion 6 and then activates the adjusting rod 5. The adjusting rod 5 pushes the backrest 8 through the movable pin 501. Simultaneously, the adjusting rod 5 moves through the adjusting bracket 3 and the adjusting shaft 4, and the backrest 8 moves upward through the movable frame 7. The trainee then leans against the backrest 8 and places their feet in the foot groove 19 of the footrest 18. At this time, the lower limbs can apply a pushing force to the training board 16, and the training board 16 slides in the mounting groove 9 through the sliding frame 10, while the connecting shaft 13... Pulling the tension spring 14 extends it, and the tension spring 14 pulls the tension sensor 902 through the telescopic rod 903. The tension sensor 902 can then detect the lower limb training strength. At the same time, the displacement sensor 20 detects the position of the sliding frame 10. When the displacement sensor 20 detects that the training board 16 has moved too short a distance to meet the standard, one or more telescopic rods 903 are activated, thereby releasing the tension spring 14 and reducing the force of the tension spring 14 pulling the sliding frame 10. This adjusts the tension generated by an appropriate number of tension springs 14, thus completing the use of this utility model. This utility model has a simple structure and is safe and convenient to use.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent lower limb reciprocating strength training device, comprising a training frame (1), characterized in that: A seat cushion (6) is fixedly connected to the top of the training frame (1). A movable frame (7) is fixedly connected to one side of the seat cushion (6). A backrest (8) is installed on one side of the movable frame (7). An installation groove (9) is provided on the side of the top of the training frame (1) away from the seat cushion (6). A sliding frame (10) is movably connected to the top of the training frame (1) through the installation groove (9). A training plate (16) is movably connected to the inner side of the sliding frame (10) through a movable shaft (11). A sliding groove (17) is provided on the front side of the training plate (16). Displacement sensors (20) are fixedly connected to both the front and back sides of the sliding frame (10). A moving groove (901) is provided on the inner wall of the installation groove (9). A tension sensor (902) is fixedly connected to the inner side of the installation groove (9). A telescopic rod (903) is fixedly connected to one side of the tension sensor (902). A tension spring (14) is fixedly connected to one end of the telescopic rod (903).

2. The intelligent lower limb reciprocating strength training device according to claim 1, characterized in that: The training frame (1) has support legs (2) fixedly connected at the four corners of the bottom. The front and back of the support legs (2) are fixedly connected to adjustment brackets (3). The front of the adjustment brackets (3) is movably connected to an adjustment shaft (4). The inner side of the adjustment brackets (3) is movably connected to an adjustment rod (5) through the adjustment shaft (4).

3. The intelligent lower limb reciprocating strength training device according to claim 1, characterized in that: The backrest (8) is fixedly connected to both the front and back sides with movable pins (501), and the movable pins (501) are fixedly connected to the adjusting rod (5).

4. The intelligent lower limb reciprocating strength training device according to claim 1, characterized in that: The sliding frame (10) has a movable shaft (11) that is movably connected through the front side, and the sliding frame (10) has a fixing screw (15) threadedly connected to both the front and back sides.

5. The intelligent lower limb reciprocating strength training device according to claim 1, characterized in that: The front of the training board (16) is movably connected to a leg (18) via a sliding groove (17), and a foot groove (19) is provided on one side of the leg (18).

6. The intelligent lower limb reciprocating strength training device according to claim 1, characterized in that: A tension frame (12) is fixedly connected to one side of the sliding frame (10), and a connecting shaft (13) is fixedly connected to the inner side of the tension frame (12). The connecting shaft (13) is fixedly connected to the tension spring (14).

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