Muscle stretching device for physical training

Abstract

The muscle stretching device for physical training comprises a first connecting plate, a headrest is arranged at one end of the top face of the first connecting plate, the first connecting plate is hollow, and a back massage mechanism is arranged on the side, close to the headrest, in the first connecting plate; the side, away from the back massage mechanism, in the first connecting plate is slidably connected with a waist massage mechanism, the waist massage mechanism is slidably connected with a waist massage roller of the first connecting plate, the waist massage roller is in transmission connection with a first driving part, the first driving part is located in the first connecting plate, and a first groove is formed in the bottom face, away from the headrest, of the first connecting plate; and a leg massage mechanism is rotationally connected into the first groove. Massage of the back, the waist and the legs is integrated, core muscle groups are covered, and the problem that muscle stretching is insufficient in traditional training is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of sports training, and particularly relates to a muscle stretching device for sports training. Background Art

[0002] Sports training refers to the physical activities that people self-select according to their physical needs, use various sports means, and combine natural forces and health measures to develop the body, improve health, enhance physical fitness, regulate the mind, enrich cultural life, and dominate leisure time. Currently, when conducting sports training, people often train their limbs but neglect the stretching training of muscles. As a result, the muscles of the trainers are not stretched for a long time during training, and being not stretched for a long time easily leads to muscle strains. Therefore, there is an urgent need for a muscle stretching device for sports training to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a muscle stretching device for sports training to solve the problems existing in the above-mentioned prior art.

[0004] To achieve the above purpose, the present invention provides the following solution: The present invention provides a muscle stretching device for sports training, including a first connecting plate. One end of the top surface of the first connecting plate is provided with a headrest. The first connecting plate is hollow inside. A back massage mechanism is provided on one side of the first connecting plate close to the headrest. A waist massage mechanism is slidably connected to the side of the first connecting plate far from the back massage mechanism. A waist massage roller of the waist massage mechanism is slidably connected to the first connecting plate. The waist massage roller is drivingly connected to a first driving part, and the first driving part is located inside the first connecting plate. A first groove is provided on the bottom surface of the first connecting plate far from the headrest, and a leg massage mechanism is rotatably connected inside the first groove.

[0005] Preferably, a first through hole is provided on the top surface of the first connecting plate, and the waist massage roller is slidably connected inside the first through hole. The first driving part includes first connecting rods symmetrically fixed at both ends of the waist massage roller. The first connecting rods are located inside the first connecting plate. First motors are symmetrically fixed inside the first connecting plate, and a disc-shaped cam is fixed to the output shaft of the first motor. The disc-shaped cam abuts against the bottom surface of the adjacent first connecting rod.

[0006] Preferably, a driving box is fixed to the side wall of the first connecting plate close to the first groove. A second driving part is fixed inside the driving box. The second driving part includes a second motor fixed inside the driving box, and the output shaft of the second motor extends into the first groove and is fixedly connected to the leg massage mechanism through a first connecting shaft.

[0007] Preferably, the leg massage mechanism includes a leg massage plate rotatably connected in the first groove. A first cavity is provided in the leg massage plate. Third grooves are symmetrically provided on one side of the leg massage plate away from the first groove. A first sliding groove is provided in the third groove. A leg massage seat is slidably connected in the first sliding groove. A pressure sensor is provided in the leg massage seat. The two leg massage seats are drivingly connected to a third driving part, and the third driving part is located in the first cavity.

[0008] Preferably, the third driving part includes third motors symmetrically fixed in the first cavity. A lead screw is fixed to the output shaft of the third motor. The top surface of the lead screw is rotatably connected to the top surface of the first cavity. A second connecting plate is threadedly connected to the two lead screws. The second connecting plate is slidably connected to the inner wall of the first cavity. A first buffer is provided between the second connecting plate and the leg massage seat.

[0009] Preferably, the first buffer includes first electric telescopic rods symmetrically fixed to the side wall of the second connecting plate. A second sliding groove is provided at one end of the leg massage seat close to the first electric telescopic rod. The output end of the first electric telescopic rod extends into the second sliding groove. A first spring is provided between the end of the first electric telescopic rod extending into the second sliding groove and the second sliding groove.

[0010] Preferably, the back massage mechanism includes a back massage group arranged side by side on the top surface of the first connecting plate. The back massage group includes a plurality of back massage seats slidably connected to the top surface of the first connecting plate. A second spring is fixed to the bottom surface of the back massage seat. A third connecting plate is fixed to the bottom surface of the second spring. A vibration motor is fixed to the bottom surface of the third connecting plate. The vibration motor is fixed to the inner bottom surface of the first connecting plate.

[0011] Preferably, a third sliding groove is provided on one side of the top surface of the first connecting plate close to the headrest. The headrest is slidably connected in the third sliding groove.

[0012] Preferably, armrests are symmetrically fixed to both sides of the first connecting plate.

[0013] Preferably, a plurality of legs are fixed to the bottom surface of the first connecting plate.

[0014] The present invention discloses the following technical effects: The user lies supine on the first connecting plate, with the head placed on the headrest, and the back, waist, and legs are respectively in contact with the back massage mechanism, the waist massage roller, and the leg massage mechanism. The waist massage roller slides along the first through hole under the drive of the first drive unit to massage the waist; the leg massage plate adjusts the angle of the leg massage plate according to the user's needs to improve the adaptability of the leg massage plate. The present invention integrates the massage of three parts: the back, the waist, and the legs, covering the core muscle groups, and solves the problem of insufficient muscle stretching in traditional training. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0016] Figure 1 is a schematic structural diagram of the muscle stretching device for sports training of the present invention;

[0017] Figure 2 is the front view of the muscle stretching device for sports training of the present invention;

[0018] Figure 3 For the present invention Figure 2 is a partial enlarged view of A in it.

[0019] In the figure: 1, the first connecting plate; 2, the headrest; 3, the waist massage roller; 4, the first groove; 5, the first through hole; 6, the first connecting rod; 7, the first motor; 8, the disc cam; 9, the drive box; 10, the second motor; 11, the first connecting shaft; 12, the leg massage plate; 13, the first cavity; 14, the third groove; 15, the first sliding groove; 16, the leg massage seat; 17, the pressure sensor; 18, the third motor; 19, the lead screw; 20, the second connecting plate; 21, the first electric telescopic rod; 22, the second sliding groove; 23, the first spring; 24, the back massage seat; 25, the second spring; 26, the third connecting plate; 27, the vibration motor; 28, the third sliding groove; 29, the armrest; 30, the leg. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In sports training, the muscle stretching device plays a crucial role. After high-intensity training, the muscles of athletes often become tense and stiff, which not only affects athletic performance but also may increase the risk of injury. Therefore, reasonable muscle stretching and relaxation are crucial for the recovery and health of athletes. In recent years, with the progress of technology and the deepening of people's understanding of the scientific nature of sports training, the muscle stretching device for sports training has developed rapidly.

[0021] In sports training, stretching and relaxing muscles can relieve fatigue. Tense muscles compress the blood vessels inside the muscles, affecting the blood circulation speed. By stretching the muscles, blood circulation can be promoted, thereby relaxing the muscles, relieving physical fatigue, and avoiding sports injuries. Stretching and relaxing muscles also helps to restore muscle elasticity and flexibility, improve the flexibility and coordination of athletes, and prepare for the next training or competition.

[0022] Classification and Characteristics of Existing Muscle Stretching Devices

[0023] Manual Muscle Stretching Devices

[0024] Manual muscle stretching devices are the earliest muscle stretching tools, mainly stretching and massaging muscles by manpower. Such devices have a simple structure and are easy to operate, but the stretching effect is limited by manpower and it is impossible to accurately stretch specific muscle groups. Common manual muscle stretching devices include foam rollers, massage balls, etc.

[0025] Electric Muscle Stretching Devices

[0026] With the development of electric technology, electric muscle stretching devices have gradually emerged. Such devices can stretch and massage muscles more deeply and lastingly through motor drive. Electric muscle stretching devices usually have multiple modes and intensities to choose from to meet the needs of different athletes. However, the cost of electric devices is relatively high, and they require power support, so they are relatively inconvenient to use.

[0027] Pneumatic Muscle Stretching Devices

[0028] Pneumatic muscle stretching devices utilize the principle of air pressure to stretch and massage muscles by inflating and deflating. Such devices are characterized by being lightweight and easy to carry, and the stretching intensity can be adjusted according to the air pressure. However, pneumatic devices require a gas source, and there may be problems with unstable air pressure during use.

[0029] Intelligent Muscle Stretching Devices

[0030] In recent years, with the rapid development of intelligent technology, intelligent muscle stretching devices have emerged as the times require. Such devices usually integrate components such as sensors, controllers, and actuators, and can automatically adjust the stretching strategy and intensity according to the muscle state and exercise needs of athletes. Intelligent muscle stretching devices have the characteristics of high personalization and automation, but the cost is relatively high and the technology is not yet mature.

[0031] Technical Details of Existing Muscle Stretching Devices

[0032] Mechanical Muscle Stretching Devices

[0033] Mechanical muscle stretching devices mainly stretch muscles through mechanical structures. For example, a sports training muscle stretching device includes components such as a support frame, a leaning board, a servo motor, a first stretching frame, and a second stretching frame. Among them, the servo motor drives the screw rod to rotate, and the screw rod cooperates with the screw rod sleeve to drive the first stretching frame and the second stretching frame to move synchronously, so as to stretch and relax the muscles of the user's calf and thigh at the same time. In addition, the device is also provided with rubber balls to increase the friction with the muscles and improve the stretching effect.

[0034] Another sports training muscle stretching device realizes the stretching of leg muscles through components such as a standing platform, a vertical frame, a backboard, a sliding block, and a restraint belt. The device realizes the stretching of the user's leg muscles through the relative or opposite movement of two sliding blocks. At the same time, the set elastic adjustment component can adjust the resistance overcome by the sliding of the sliding block, so as to realize the full stretching of the leg muscles according to actual needs.

[0035] Electromagnetic muscle stretching device

[0036] Electromagnetic muscle stretching devices use electromagnetic principles to stimulate and relax muscles. For example, a sports training muscle stretching device realizes the relaxation and stretching of the muscles at the neck through components such as a headrest component, a pressing component, an adjustment guide plate, and a swinging component. The device uses a motor to drive the telescopic plate to swing, and at the same time makes the electromagnetic plate magnetic. The electromagnetic plate will attract the magnetic absorption block, thereby driving the headrest plate to move left and right, causing the user's neck to turn slightly, so as to achieve the purpose of stretching and relaxing the muscles at the neck left and right.

[0037] Hydraulic muscle stretching device

[0038] Hydraulic muscle stretching devices stretch and massage muscles through hydraulic principles. Such devices usually have greater stretching force and stable performance, but the structure is relatively complex and requires a hydraulic source support.

[0039] Intelligent control muscle stretching device

[0040] Intelligent control muscle stretching devices integrate components such as sensors, controllers, and actuators, and can automatically adjust the stretching strategy and intensity according to the muscle state and exercise needs of athletes. For example, some intelligent muscle stretching devices use built-in pressure sensors to monitor the muscle state in real time and automatically adjust the massage intensity and frequency according to the monitoring results. In addition, some intelligent devices also support remote control through a mobile phone APP, which is convenient for athletes to perform muscle stretching anytime and anywhere.

[0041] Problems existing in existing muscle stretching devices

[0042] Although existing muscle stretching devices have made remarkable progress in technology and function, there are still some problems:

[0043] Unable to accurately locate specific muscle groups

[0044] Most existing muscle stretching devices adopt an integral or regional design and are unable to accurately locate specific muscle groups. This may result in the inability to effectively relax tense muscles during stretching, while causing unnecessary stretching or massage to other muscle groups.

[0045] The stretching intensity and frequency cannot be flexibly adjusted

[0046] The intensity and frequency of some muscle stretching devices are set relatively fixed and cannot be flexibly adjusted according to the individual needs and muscle conditions of athletes. This may lead to poor stretching effects and even cause damage to muscles.

[0047] Insufficient intelligence

[0048] Although some intelligent muscle stretching devices have emerged, the overall intelligence level is still insufficient. Most devices still require manual operation and control and cannot be automatically adjusted according to the real-time muscle conditions and exercise needs of athletes.

[0049] Inconvenient to use

[0050] Some muscle stretching devices have complex structures and cumbersome operations, which bring inconvenience to the use of athletes. In addition, some devices require external power sources or gas sources for support during use, which also increases the difficulty and cost of use.

[0051] In response to the problems existing in existing muscle stretching devices, the future development trends will mainly focus on the following aspects:

[0052] Precision positioning technology

[0053] With the development of sensor and image recognition technologies, future muscle stretching devices will be able to achieve precise positioning of specific muscle groups. This will greatly improve the pertinence and effectiveness of stretching and reduce the stretching and massage of unnecessary muscle groups.

[0054] Personalized customization

[0055] Future muscle stretching devices will be customized according to the individual needs and muscle conditions of athletes. Through built-in sensors and controllers, the device can monitor muscle conditions in real time and automatically adjust the stretching strategy and intensity according to the monitoring results. This will greatly improve the comfort and effect of stretching.

[0056] Intelligent control

[0057] Future muscle stretching devices will be more intelligent. By integrating advanced control algorithms and artificial intelligence technologies, the device can automatically adjust according to the real-time muscle status and movement needs of athletes. In addition, the device also supports remote control and management through mobile phone apps and other means, facilitating athletes to perform muscle stretching anytime and anywhere.

[0058] Portable design

[0059] With the increasing demand for portability, future muscle stretching devices will pay more attention to portable design. By adopting lightweight materials and modular structures, etc., the device will be more lightweight and easy to carry, facilitating athletes to perform muscle stretching on any occasion.

[0060] Multi-functional integration

[0061] Future muscle stretching devices will integrate multiple functions, such as stretching, massage, hot compress, etc. This will greatly improve the comprehensive performance and practicality of the device, meeting the various needs of athletes in different scenarios.

[0062] Muscle stretching devices for sports training have made remarkable progress in technology and functions, but there are still some problems. Future development trends will mainly focus on precise positioning technology, personalized customization, intelligent control, portable design, and multi-functional integration. With the development and application of these technologies, future muscle stretching devices will be more precise, efficient, intelligent, and portable, providing athletes with higher-quality muscle stretching services. This will contribute to promoting the recovery and health of athletes, improving sports performance, and driving the sustainable development of the sports industry.

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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 of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0064] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0065] Refer to Figures 1-3As shown in the figure, this embodiment provides a muscle stretching device for sports training, which includes a first connecting plate 1. One end of the top surface of the first connecting plate 1 is provided with a headrest 2. The first connecting plate 1 is hollow. A back massage mechanism is provided on one side of the first connecting plate 1 close to the headrest 2. A waist massage mechanism is slidably connected to the side of the first connecting plate 1 far from the back massage mechanism. A waist massage roller 3 of the waist massage mechanism is slidably connected to the first connecting plate 1. The waist massage roller 3 is drivingly connected to a first driving part, and the first driving part is located in the first connecting plate 1. A first groove 4 is provided on the bottom surface of the first connecting plate 1 far from the headrest 2. A leg massage mechanism is rotatably connected in the first groove 4.

[0066] The user lies supine on the first connecting plate 1, with the head placed at the headrest 2, and the back, waist and legs respectively contact the back massage mechanism, the waist massage roller 3 and the leg massage mechanism. The waist massage roller 3 slides along the first through hole 5 under the drive of the first driving part to massage the waist; according to the user's needs, the angle of the leg massage plate 12 is adjusted to improve the adaptability of the leg massage plate 12. The present invention integrates the massage of three parts: the back, the waist and the legs, covering the core muscle groups, and solves the problem of insufficient muscle stretching in traditional training.

[0067] In a further optimized solution, a first through hole 5 is provided on the top surface of the first connecting plate 1. The waist massage roller 3 is slidably connected in the first through hole 5. The first driving part includes first connecting rods 6 symmetrically fixed at both ends of the waist massage roller 3. The first connecting rods 6 are located in the first connecting plate 1. First motors 7 are symmetrically fixed in the first connecting plate 1. The output shaft of the first motor 7 is fixed with a disc-shaped cam 8. The disc-shaped cam 8 and the bottom surface of the adjacent first connecting rod 6 are in contact.

[0068] The first motor 7 drives the disc-shaped cam 8 to rotate. The contour of the disc-shaped cam 8 periodically contacts the bottom surface of the first connecting rod 6, pushing the waist massage roller 3 to slide back and forth in the first through hole 5 to form a wavy massage track. The disc-shaped cam 8 drives to simulate the rhythm and strength of manual massage, accurately stimulating the erector spinae muscle and quadratus lumborum muscle of the waist. The first motor 7 and the disc-shaped cam 8 are built in the first connecting plate 1, reducing the volume of the device and facilitating the user to lie flat for use.

[0069] In a further optimized solution, a drive box 9 is fixed on the side wall of the first connecting plate 1 close to the first groove 4. A second driving part is fixed in the drive box 9. The second driving part includes a second motor 10 fixed in the drive box 9. The output shaft of the second motor 10 extends into the first groove 4 and is fixedly connected to the leg massage mechanism through a first connecting shaft 11.

[0070] The second motor 10 drives the leg massage plate 12 to rotate around the first groove 4 through the first connecting shaft 11, driving the user's calf to bend or stretch, and accurately adjusting the leg bending angle through the motor to avoid muscle damage caused by excessive stretching. The leg bending angle is accurately adjusted through the second motor 10 to avoid muscle damage caused by excessive stretching.

[0071] In a further optimized solution, the leg massage mechanism includes a leg massage plate 12 rotatably connected in the first groove 4. A first cavity 13 is provided inside the leg massage plate 12. Third grooves 14 are symmetrically provided on the side of the leg massage plate 12 away from the first groove 4. A first sliding groove 15 is provided in the third groove 14. A leg massage seat 16 is slidably connected in the first sliding groove 15. A pressure sensor 17 is provided inside the leg massage seat 16. The two leg massage seats 16 are drivingly connected to a third driving part, and the third driving part is located inside the first cavity 13.

[0072] The user places the calf on the leg massage seat 16. The pressure sensor 17 monitors the leg circumference and the pressure application intensity in real time. The third driving part adjusts the distance between the leg massage seat 16 and the calf according to the data. The massage pressure is automatically adjusted through pressure feedback to avoid the squeezing discomfort caused by the too large leg circumference of obese users.

[0073] In a further optimized solution, the third driving part includes third motors 18 symmetrically fixed inside the first cavity 13. A lead screw 19 is fixed to the output shaft of the third motor 18. The top surface of the lead screw 19 is rotatably connected to the top surface of the first cavity 13. A second connecting plate 20 is threadedly connected to the two lead screws 19. The second connecting plate 20 is slidably connected to the inner wall of the first cavity 13. A first buffer member is provided between the second connecting plate 20 and the leg massage seat 16.

[0074] The third motor 18 drives the lead screw 19 to rotate, driving the second connecting plate 20 to lift inside the first cavity 13. The power is transmitted to the leg massage seat 16 through the first buffer member to achieve flexible pressure adjustment of the leg massage seat 16. The buffer member absorbs the rigid impact output by the motor to avoid muscle spasm caused by sudden change of massage force.

[0075] In a further optimized solution, the first buffer member includes first electric telescopic rods 21 symmetrically fixed to the side walls of the second connecting plate 20. A second sliding groove 22 is provided at one end of the leg massage seat 16 close to the first electric telescopic rod 21. The output end of the first electric telescopic rod 21 extends into the second sliding groove 22. A first spring 23 is provided between the end of the first electric telescopic rod 21 extending into the second sliding groove 22 and the second sliding groove 22.

[0076] The output end of the first electric telescopic rod 21 extends into the second sliding groove 22. The first spring 23 provides elastic support between the first electric telescopic rod 21 and the second sliding groove 22. When the user's leg exerts pressure, the first spring 23 compresses to buffer the pressure, and the first electric telescopic rod 21 dynamically adjusts the position of the leg massage seat 16.

[0077] In a further optimized solution, the back massage mechanism includes a back massage group arranged side by side on the top surface of the first connecting plate 1. The back massage group includes a plurality of back massage seats 24 slidably connected to the top surface of the first connecting plate 1. The bottom surface of the back massage seat 24 is fixedly connected to a second spring 25. The bottom surface of the second spring 25 is fixedly connected to a third connecting plate 26. The bottom surface of the third connecting plate 26 is fixedly connected to a vibration motor 27, and the vibration motor 27 is fixedly connected to the inner bottom surface of the first connecting plate 1.

[0078] The back massage seat 24 fits the user's back curve under the support of the second spring 25. The vibration motor 27 drives the massage seat to vibrate up and down, and transmits the vibration wave to the back muscle group through the third connecting plate 26. The vibration motor 27 generates high-frequency and small-amplitude vibrations to relieve the fascia adhesion of the trapezius muscle and the erector spinae muscle.

[0079] In a further optimized solution, a third sliding groove 28 is provided on one side of the top surface of the first connecting plate 1 close to the headrest 2. The headrest 2 is slidably connected in the third sliding groove 28. The headrest 2 slides back and forth along the third sliding groove 28, and the user can adjust the position of the headrest 2 according to their height to ensure that the cervical vertebra is aligned with the back massage area.

[0080] In a further optimized solution, armrests 29 are symmetrically and fixedly connected to both sides of the first connecting plate 1. The user holds the armrests 29 on both sides. When stretching the legs or vibrating the back, the body center of gravity is stabilized through the armrests 29 to prevent movement imbalance.

[0081] In a further optimized solution, a plurality of legs 30 are fixedly connected to the bottom surface of the first connecting plate 1. The plurality of legs 30 support the first connecting plate 1 to ensure the overall stability of the device during vibration massage or leg rotation.

[0082] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0083] The embodiments described above are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A muscle stretching device for sports training, characterized in that: The invention comprises a first connecting plate (1), a headrest (2) is provided at one end of the top surface of the first connecting plate (1), the first connecting plate (1) is hollow, a back massage mechanism is provided on the side of the first connecting plate (1) close to the headrest (2), a waist massage mechanism is slidably connected to the side of the first connecting plate (1) away from the back massage mechanism, the waist massage mechanism is slidably connected to a waist massage roller (3) of the first connecting plate (1), the waist massage roller (3) is transmission-connected to a first driving unit, the first driving unit is located in the first connecting plate (1), a first groove (4) is provided on the bottom surface of the first connecting plate (1) away from the headrest (2), and a leg massage mechanism is rotatably connected in the first groove (4).

2. The muscle stretching device for sports training according to claim 1, characterized in that: The top surface of the first connecting plate (1) is provided with a first through hole (5), the waist massage roller (3) is slidably connected in the first through hole (5), the first driving part comprises a first connecting rod (6) symmetrically fixed to the two ends of the waist massage roller (3), the first connecting rod (6) is located in the first connecting plate (1), a first motor (7) is symmetrically fixed in the first connecting plate (1), the output shaft of the first motor (7) is fixedly connected to a disc cam (8), and the disc cam (8) abuts against the bottom surface of the first connecting rod (6) adjacent thereto.

3. The muscle stretching device for sports training according to claim 1, characterized in that: A drive box (9) is fixedly connected to the side wall of the first connecting plate (1) close to the first groove (4), a second drive unit is fixedly connected inside the drive box (9), the second drive unit comprises a second motor (10) fixedly connected inside the drive box (9), an output shaft of the second motor (10) is fixedly connected to extend into the first groove (4) and is fixedly connected to the leg massage mechanism via a first connecting shaft (11).

4. The muscle stretching device for sports training according to claim 3, characterized in that: The leg massage mechanism comprises a leg massage plate (12) rotatably connected in the first groove (4), a first cavity (13) being provided in the leg massage plate (12), a third groove (14) being symmetrically provided on the side of the leg massage plate (12) away from the first groove (4), a first slide groove (15) being provided in the third groove (14), a leg massage seat (16) being slidably connected in the first slide groove (15), a pressure sensor (17) being provided in the leg massage seat (16), two leg massage seats (16) being transmission-connected with a third driving unit, and the third driving unit being located in the first cavity (13).

5. The muscle stretching device for sports training according to claim 4, characterized in that: The third driving part comprises a third motor (18) symmetrically fixed in the first cavity (13); the output shaft of the third motor (18) is fixedly connected with a lead screw (19); the top surface of the lead screw (19) is rotatably connected to the top surface of the first cavity (13); the two lead screws (19) are threadedly connected with a second connecting plate (20); the second connecting plate (20) is slidably connected to the inner wall of the first cavity (13); and a first buffer is provided between the second connecting plate (20) and the leg massage seat (16).

6. The muscle stretching device for sports training according to claim 5, characterized in that: The first buffer member comprises a first electric telescopic rod (21) symmetrically fixed to the side wall of the second connecting plate (20); a second slide groove (22) is provided at one end of the leg massage seat (16) close to the first electric telescopic rod (21); an output end of the first electric telescopic rod (21) extends into the second slide groove (22); and a first spring (23) is provided between one end of the first electric telescopic rod (21) extending into the second slide groove (22) and the second slide groove (22).

7. The muscle stretching device for sports training according to claim 1, characterized in that: The back massage mechanism comprises a back massage group arranged side by side on the top surface of the first connecting plate (1), the back massage group comprises a plurality of back massage seats (24) slidably connected to the top surface of the first connecting plate (1), the bottom surface of the back massage seat (24) is fixedly connected to a second spring (25), the bottom surface of the second spring (25) is fixedly connected to a third connecting plate (26), the bottom surface of the third connecting plate (26) is fixedly connected to a vibration motor (27), and the vibration motor (27) is fixedly connected to the inner bottom surface of the first connecting plate (1).

8. The muscle stretching device for sports training according to claim 1, characterized in that: A third sliding groove (28) is provided on the top surface of the first connecting plate (1) at a side close to the headrest (2), and the headrest (2) is slidably connected in the third sliding groove (28).

9. The muscle stretching device for sports training according to claim 1, characterized in that: Handrails (29) are symmetrically fixedly connected to both sides of the first connecting plate (1).

10. The muscle stretching device for sports training according to claim 1, characterized in that: A plurality of supporting legs (30) are fixedly connected to the bottom surface of the first connecting plate (1).

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