High-tension dorsal muscle trainer for sports health promotion

Abstract

The invention discloses a high-tension dorsal muscle trainer for sports health promotion, which comprises a dorsal muscle training mechanism, a lying switching seat and a dorsal muscle relieving mechanism, the dorsal muscle training mechanism comprises a rack, a weight bearing block, a pulling handle, a pull rope and a pulley block, the rack is supported on the ground, and placing frames are arranged on two sides of the bottom of the rack; the lying switching seat comprises a bottom support, a seat plate, a lying plate, a leg cushion seat, a limiting support, a limiting clamp and an adjusting arm, foot pads are installed at the front end and the rear end of the bottom support, the top end of the bottom support is hinged to the seat plate and the lying plate, and the limiting support is hinged to the rear side of the seat plate; the dorsal muscle relieving mechanism is installed on the top side of the rack and comprises a top plate, an electric cylinder, a moving assembly and a dorsal muscle massage assembly, the top plate is buckled on the rack through a clamping frame, the electric cylinder is installed on the lower side of the top plate, and the shaft end of the electric cylinder is connected with the moving assembly. After a user is trained, the dorsal muscles of the user in a lying state can be relieved and massaged through the dorsal muscle relieving mechanism.

Description

Technical Field

[0001] The invention relates to the field of sports and fitness, in particular to a high-tension back muscle trainer for promoting health through sports. Background Art

[0002] The high-tension back muscle trainer mainly exercises the latissimus dorsi, trapezius, deltoid and biceps. It can improve the strength of the back muscles, enhance the stretching force of the back muscles and abdominal muscle ligaments, strengthen the coordination and cooperation ability of the small muscle groups in the back, and increase the flexibility and flexibility of the back muscles.

[0003] Existing high-tension back muscle trainers are as follows:

[0004] 1) A high-tensile back muscle trainer for physical education disclosed in publication number CN113813560B. In this technical application, the back muscle trainer includes a main body, a roller for relaxing leg muscles is provided at the front end of the main body, and a transmission shaft for transmission is provided at the front end of the main body. Through the setting of the No. 2 gear shaft, the No. 2 gear shaft drives the ratchet mechanism to rotate through the tooth groove, and the ratchet mechanism is meshed with the square block through the gear groove for transmission. The setting adjusts the height of the square block through the No. 2 gear shaft, thereby achieving the effect of lifting and lowering the height of the rotating arm, which is convenient for people of different heights to use and improves the scope of application. Through the setting of the transmission shaft, a foot pedal is provided at one end of the transmission shaft, and the other end is driven by a turbine and a worm gear, thereby driving the No. 2 connecting rod to extend and retract. The setting plays a role in controlling the stretching and falling speed through the power of the foot, effectively offsetting the reaction force generated by the fall, and playing a certain protective role for the trainee.

[0005] 2) A high-tension back muscle trainer for physical education disclosed in publication number CN111437566B, the trainer includes an adjustment mechanism and a protection mechanism; the adjustment mechanism is composed of an adjustment gear, a transmission gear, a hub, a support rod and an adjustment rod. The adjustment mechanism of the device can adjust the pulling force used to pull the same counterweight within a certain range by rotating the adjustment rod while sitting on a training bench without adjusting the counterweight, without the need for frequent sitting ups, and the device can prevent the trainer from slipping or exhausting the training handle, causing the counterweight box to fall quickly and cause damage to the device and danger to the people on the scene through the protection mechanism.

[0006] 3) A back muscle trainer for sports training disclosed in publication number CN115228040B, in which the trainer includes a base plate, a bottom plate is provided at the lower end of the base plate, fixed blocks for connection are provided on both sides of the base plate, long rods are provided inside the fixed blocks, and universal wheels are provided at one end of the long rods, two vertical rods are provided on one side of the upper end of the base plate, a plurality of threaded holes are provided on one side of the vertical rods, and two No. 1 screws for connection are provided on one side of the vertical rods, and the base plate is driven to rise by rotating the No. 1 screw and the No. 2 screw, and when the No. 2 screw drives the bolt to the appropriate position, the No. 2 screw is used to fix it, so that it is easy to move without affecting its use, and the square plate bears the impact of the counterweight block to push the push block to squeeze the spring inside the shell, so as to achieve the effect of slowing down the impact and reducing noise.

[0007] The above-mentioned prior arts can all achieve the purpose of training the back muscles of the user. However, when the back muscle trainer is used, the operator will experience muscle soreness due to the accumulation of lactic acid after exercising for a long time. In addition, long-term exercise will cause partial muscle fiber damage, which will also lead to muscle soreness. In view of this, publication number CN116139451A proposes the concept of massaging the user's back during training. The technical application is that after the user's massage, the user sits on a chair and uses a rolling massage component to massage the user's back. However, in actual application, when the user is sitting, his back muscles are still in a straight state. At this time, the rolling massage component is in direct contact with the user's back, which is bound to cause muscle damage. Summary of the invention

[0008] The purpose of the present invention is to provide a high-tension back muscle trainer for promoting health through sports, which has back muscle training and soothing massage functions. After the user has finished training, the seat can be switched to a reclining chair form using the lying switch seat, and the back muscles of the user in the lying state can be soothed and massaged through the back muscle soothing mechanism, which can avoid muscle damage caused by the straightening of the back muscles when the user sits for massage.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a high-tension back muscle training device for sports and health promotion, comprising:

[0010] A back muscle training mechanism, comprising a frame, a weight block, a pulling handle, a pull rope and a pulley group, wherein the frame is supported on the ground, a placing rack is arranged on both sides of the bottom of the frame, and the pulley group comprises a first pulley installed on both sides of the top of the frame and a second pulley installed on the front side of the frame;

[0011] A lying-down switchable seat, comprising a bottom bracket, a seat plate, a lying plate, a leg support, a limit bracket, a limit clamp and an adjustment arm, wherein the bottom bracket is provided with foot pads at the front and rear ends, the top end of the bottom bracket is hingedly connected to the seat plate and the lying plate, wherein the limit bracket is hingedly installed at the rear side of the seat plate, and a plurality of limit clamps are provided at the rear end of the bottom bracket to limit the limit bracket;

[0012] A back muscle relaxation mechanism is installed on the top side of the frame. The back muscle relaxation mechanism includes a top plate, an electric cylinder, a moving component and a back muscle massage component. The top plate is installed on the frame through a bracket, and the electric cylinder is installed on the lower side of the top plate. The shaft end of the electric cylinder is connected to the moving component.

[0013] Preferably, the weight blocks are stacked and placed in the rack, and a pull rope is connected to the weight blocks, which is guided by the first pulley and the second pulley and connected to the pulling handle; the front side of the rack is a square tube frame with through holes arranged at intervals on the outside, and the rear end of the second pulley is sleeved on the outside of the square tube frame through a limit support. During training, the user holds the pulling handle with his forehand and stretches it to the chest, and the pull rope passes through the first pulley and the second pulley to pull up the weight blocks in the rack. The number of weight blocks determines the training intensity.

[0014] Preferably, the front side of the bottom bracket is connected to an adjustment arm, which is arranged in an arc shape and has a plurality of through holes thereon, and the bottom bracket is connected to the adjustment arm by a limit bolt; the front end of the bottom bracket is connected to a telescopic tube, and a leg cushion seat is installed at the front end of the telescopic tube. The leg cushion seat is used to support the leg joints. When stretching the back muscles, the leg cushion seat is moved out by using the telescopic tube, and the user rotates the seat board to make the seat board in a vertical state, and supports the limit bracket on the back side of the seat board on the limit clamp, and adjusts the seat board at the same time to make the seat board and the limit bracket in a vertical state. The lying-down switching seat can be switched to a seat form and a reclining chair form, wherein the user can stretch the back muscles in the seat form, and in the reclining chair form, the user can lie on the seat board and the reclining board, and use the back muscle relief mechanism to massage and relieve the back muscles to reduce the impact of stretching on the muscles.

[0015] Preferably, the moving component includes a shell, a guide rod, a screw and a slide support, wherein an opening is provided on the bottom side of the shell, and the guide rod and the screw are installed in the shell, wherein the screw is rotatably connected to the inner side of the shell and is parallel to the guide rod, and a first motor coaxially connected to the screw is provided outside the shell; the slide support is sleeved on the guide rod and the screw, and a back muscle massage component is installed on the lower side of the slide support, and when the first motor is started, the slide support drives the back muscle massage component to move forward and backward to soothe the user's back muscles.

[0016] Preferably, the back muscle massage component includes an upper bracket, a lower bracket, a second motor, an 8-shaped cam ring, a reciprocating module and a massage module, wherein the lower bracket is provided with an opening in the middle, the upper bracket is connected to the lower side of the slide support, a plurality of support rods are connected between the upper bracket and the lower bracket, the second motor is installed on the bottom side of the upper bracket, the shaft end of the second motor extends into the lower side of the opening of the lower bracket and is connected to the 8-shaped cam ring; the reciprocating modules are provided with four groups and are distributed on the four sides of the lower side of the lower bracket, the ends of the four groups of reciprocating modules are hinged by connecting rods, and each reciprocating module includes a sliding column and a pressure wheel.

[0017] Preferably, a sliding sleeve is provided at the bottom of the lower bracket corresponding to the position of the reciprocating module, the sliding column can extend into the sliding sleeve, and a pressure wheel is provided at the front end of the sliding column, which can cooperate with an 8-shaped cam ring, and the 8-shaped cam ring can rotate and intermittently contact the pressure wheels of the four groups of reciprocating modules, and make the sliding column extend out of the sliding sleeve. The back muscle relaxation mechanism is in the form of a reclining chair. When the user lies on the seat board or the reclining board, the electric cylinder is used to drive the back muscle massage component downward to approach the user's back, and the first motor is used to drive the lead screw to rotate, and the slide support is moved along the guide rod and the lead screw. The slide support drives the back muscle massage component to move forward and backward, thereby achieving a relaxing massage for the user's back muscles.

[0018] Preferably, the back muscle massage component utilizes a second motor to drive an 8-shaped cam ring to rotate. The 8-shaped cam ring intermittently contacts the pressure wheels of four reciprocating modules, causing the sliding column at the front end of the pressure wheel to move relative to the sliding sleeve. By installing a massage module at the front end of the sliding column, the massage module can be used to massage and soothe the user's back muscles.

[0019] Preferably, the massage module is connected to the front end of the slide column, and the massage module includes an outer bracket and a plurality of groups of massage rollers distributed inside the outer bracket and rotatable, and each massage roller is provided with particles for massage on the outside. The massage roller is a rubber roller, and the massage roller rolls along the user's back front and back and around under the drive of the moving assembly and the reciprocating moving module, and the raised particles on the outside of the massage roller relieve the back muscles.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention has the functions of back muscle training and soothing massage. After the user has completed the training, the seat can be switched to a reclining chair using the lying position switching function. The back muscle soothing mechanism can be used to soothe the back muscles of the user in the lying position, thereby avoiding muscle damage caused by the straightening of the back muscles when the user is sitting for massage.

[0022] 2. The reclining chair of the present invention can be switched between a seat form and a reclining chair form. In the seat form, the user can stretch the back muscles. In the reclining chair form, the user can lie on the seat board and the reclining board and use the back muscle relaxation mechanism to massage and relax the back muscles to reduce the impact of stretching on the muscles.

[0023] 3. The back muscle massage component of the present invention adopts an 8-shaped cam ring to intermittently contact the massage module, so that the massage module can move in four directions: up, down, left and right. Compared with a single massage structure, the massage module of the present invention has a better massage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of a back muscle training mechanism in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of a lying-down switching seat according to an embodiment of the present invention;

[0027] Figure 4 It is a structural schematic diagram of a back muscle relaxation mechanism in an embodiment of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the moving component and the back muscle massage component in an embodiment of the present invention;

[0029] Figure 6 It is a structural schematic diagram of a back muscle massage component in an embodiment of the present invention;

[0030] Figure 7 Schematic diagram of the structure of the massage module in the embodiment of the present invention.

[0031] In the figure: 1, back muscle training mechanism; 11, rack; 12, weight block; 13, pull handle; 14, pull rope; 15, first pulley; 16, second pulley; 17, square tube frame; 18, limit support;

[0032] 2. Lying and lying switch seat; 21. Bottom bracket; 22. Seat board; 23. Lying board; 24. Leg support; 25. Telescopic tube; 26. Limit bracket; 27. Limit clamp; 28. Adjustment arm;

[0033] 3. Back muscle relaxation mechanism; 31. Top plate; 32. Electric cylinder; 33. Moving assembly; 331. Shell; 332. Guide rod; 333. Lead screw; 334. Slide support; 335. First motor; 34. Back muscle massage assembly; 341. Upper bracket; 342. Lower bracket; 343. Second motor; 344. 8-shaped cam ring; 345. Reciprocating module; 345a. Sliding column; 345b. Pressure wheel; 346. Massage module; 346a. External bracket; 346b. Massage roller; 35. Sliding sleeve. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 cannot be understood as a limitation on the present invention.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] See also Figure 1 The present invention provides a technical solution: a high-tension back muscle trainer for promoting health through sports, comprising a back muscle training mechanism 1, a back muscle relaxation mechanism 3 and a lying-down switching seat 2.

[0038] See also Figure 1-Figure 2 In this embodiment, the back muscle training mechanism 1 includes a frame 11, a weight block 12, a pulling handle 13, a pull rope 14 and a pulley group, wherein the frame 11 is supported on the ground, and a placement rack is arranged on both sides of the bottom of the frame 11. The pulley group includes a first pulley 15 installed on both sides of the top of the frame 11 and a second pulley 16 installed on the front side of the frame 11; the weight block 12 is stacked and placed in the placement rack, and the pull rope 14 is connected to the weight block 12. The pull rope 14 is guided by the first pulley 15 and the second pulley 16 and connected to the pulling handle 13; the front side of the frame 11 is a square tube frame 17 with through holes arranged at intervals on the outside, and the rear end of the second pulley 16 is sleeved on the outside of the square tube frame 17 through a limiting support 18.

[0039] During training, the user holds the pulling handle 13 with his forehand and stretches it to the chest. The pull rope 14 passes through the first pulley 15 and the second pulley 16 to pull up the load-bearing blocks in the placement frame. The number of load-bearing blocks determines the training intensity.

[0040] See also Figure 1 , Figure 3In the present embodiment, the lying-down switching seat 2 comprises a bottom bracket 21, a seat board 22, a lying board 23, a leg pad seat 24, a limit bracket 26, a limit clamp 27 and an adjustment arm 28, wherein the bottom bracket 21 is provided with foot pads at the front and rear ends, the top end of the bottom bracket 21 is hinged to the seat board 22 and the lying board 23, wherein the limit bracket 26 is hingedly installed on the rear side of the seat board 22, and a plurality of limit clamps 27 for limiting the limit bracket 26 are provided at the rear end of the bottom bracket 21; the front side of the bottom bracket 21 is connected to the adjustment arm 28, the adjustment arm 28 is arranged in an arc shape and has a plurality of through holes distributed thereon, and the bottom bracket 21 is limitedly connected to the adjustment arm 28 by a limit bolt; the front end of the bottom bracket 21 is connected to the telescopic tube 25, and the leg pad seat 24 is installed at the front end of the telescopic tube 25.

[0041] In this embodiment, when stretching the back muscles, the leg pad 24 is moved out using the telescopic tube 25, and the user rotates the seat board 22 to make the seat board 22 vertical, and uses the limit bracket 26 on the back side of the seat board 22 to support it on the limit clamp 27, and at the same time adjusts the seat board 22 to make the seat board 22 and the limit bracket 26 vertical. The lying switch seat 2 can be switched to a seat form and a lying chair form. In the seat form, the user can stretch the back muscles, and in the lying chair form, the user can lie on the seat board 22 and the lying board 23, and use the back muscle relief mechanism 3 to massage and relieve the back muscles to reduce the impact of stretching on the muscles.

[0042] In this embodiment, when the reclining switchable chair 2 is in the reclining chair form, the user can also reach into the inner side of the leg support seat 24, and use the leg support seat 24 to clamp the calf joint, and the user can do sports such as sit-ups.

[0043] See also Figure 1 , Figure 4 , Figure 5 , Figure 6In this embodiment, the back muscle relaxation mechanism 3 is installed on the top side of the frame 11, and the back muscle relaxation mechanism 3 includes a top plate 31, an electric cylinder 32, a moving component 33 and a back muscle massage component 34, wherein the top plate 31 is mounted on the frame 11 through a bracket, the electric cylinder 32 is installed on the lower side of the top plate 31, and the shaft end of the electric cylinder 32 is connected to the moving component 33; the moving component 33 includes a shell 331, a guide rod 332, a lead screw 333 and a slide support 334, wherein the bottom side of the shell 331 is provided with an opening, and the guide rod 332 and the lead screw 333 are installed in the shell 331, and the moving component 333 includes a housing 331, a guide rod 332 and a lead screw 333, and a slide support 334. The middle lead screw 333 is rotatably connected to the inner side of the housing 331 and is parallel to the guide rod 332. A first motor 335 coaxially connected to the lead screw 333 is provided outside the housing 331. The slide support 334 is sleeved on the guide rod 332 and the lead screw 333. A back muscle massage component 34 is installed on the lower side of the slide support 334. When the first motor 335 is started, the slide support 334 drives the back muscle massage component 34 to move forward and backward to relieve the back muscles of the user. The back muscle massage component 34 includes an upper bracket 341, a lower bracket 342, a second motor 343, and an 8-shaped The cam ring 344, the reciprocating module 345 and the massage module 346, wherein the lower bracket 342 is provided with an opening in the middle, the upper bracket 341 is connected to the lower side of the slide support 334, and a plurality of support rods are connected between the upper bracket 341 and the lower bracket 342, and the second motor 343 is installed on the bottom side of the upper bracket 341, and the shaft end of the second motor 343 extends into the lower side of the opening of the lower bracket 342 and is connected to the 8-shaped cam ring 344; the reciprocating module 345 is provided with four groups and is distributed on the four sides of the lower side of the lower bracket 342, and the four groups of reciprocating modules 34 The ends of the lower bracket 342 are hinged by connecting rods, and each reciprocating module 345 includes a sliding column 345a and a pressing wheel 345b. A sliding sleeve 35 is provided at the bottom of the lower bracket 342 corresponding to the reciprocating module 345. The sliding column 345a can extend into the sliding sleeve 35. A pressing wheel 345b is provided at the front end of the sliding column 345a. The pressing wheel 345b can cooperate with the 8-shaped cam ring 344. The 8-shaped cam ring 344 can rotate and intermittently contact the pressing wheels 345b of the four groups of reciprocating modules 345, and make the sliding column 345a extend out of the sliding sleeve 35.

[0044] In this embodiment, the back muscle relaxing mechanism 3 is in the reclining chair form. When the user lies on the seat board 22 and the reclining board 23, the electric cylinder 32 is used to drive the back muscle massage component 34 downward to approach the user's back, and the first motor 335 is used to drive the screw 333 to rotate, and the slide support 334 is moved along the guide rod 332 and the screw 333. The slide support 334 drives the back muscle massage component 34 to move forward and backward, thereby achieving a relaxing massage for the user's back muscles.

[0045] In this embodiment, the back muscle massage component 34 utilizes the second motor 343 to drive the 8-shaped cam ring 344 to rotate. The 8-shaped cam ring 344 intermittently abuts against the pressure wheels 345b of the four reciprocating modules 345, causing the sliding column 345a at the front end of the pressure wheel 345b to move relative to the sliding sleeve 35. By installing a massage module 346 at the front end of the sliding column 345a, the massage module 346 can be used to massage and soothe the user's back muscles.

[0046] See also Figure 6 , Figure 7 In this embodiment, the massage module 346 is connected to the front end of the sliding column 345a. The massage module 346 includes an outer bracket 346a and a plurality of groups of massage rollers 346b distributed on the inner side of the outer bracket 346a and rotatable. Each massage roller 346b is provided with particles for massage on the outside. The massage roller 346b is a rubber roller. The massage roller 346b rolls along the user's back front and back and around under the drive of the moving component 33 and the reciprocating moving module 345, and the raised particles on the outside of the massage roller 346b are used to relieve the back muscles.

[0047] It is worth noting that the entire device is controlled by a general control system. Since the equipment matched with the control system is commonly used equipment and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-tension back muscle training device for promoting health through sports, characterized in that: include: A back muscle training mechanism (1) comprises a frame (11), a weight block (12), a pulling handle (13), a pull rope (14) and a pulley block, wherein the frame (11) is supported on the ground, a placing rack is arranged on both sides of the bottom of the frame (11), and the pulley block comprises a first pulley (15) mounted on both sides of the top of the frame (11) and a second pulley (16) mounted on the front side of the frame (11); A lying-down switchable chair (2), comprising a bottom bracket (21), a seat plate (22), a lying plate (23), a leg support seat (24), a limit bracket (26), a limit clamp (27) and an adjustment arm (28), wherein the bottom bracket (21) is provided with foot pads at the front and rear ends, the top end of the bottom bracket (21) is hingedly connected to the seat plate (22) and the lying plate (23), the rear side of the seat plate (22) is hingedly provided with a limit bracket (26), and the rear end of the bottom bracket (21) is provided with a plurality of limit clamps (27) for limiting the limit bracket (26); A back muscle relaxation mechanism (3) is installed on the top side of a frame (11). The back muscle relaxation mechanism (3) comprises a top plate (31), an electric cylinder (32), a moving assembly (33) and a back muscle massage assembly (34). The top plate (31) is mounted on the frame (11) by a clamping bracket, the electric cylinder (32) is installed on the lower side of the top plate (31), and the shaft end of the electric cylinder (32) is connected to the moving assembly (33).

2. A high-tension back muscle training device for promoting health through sports according to claim 1, characterized in that: The load blocks (12) are stacked and placed in the placement frame, and the load blocks (12) are connected to a pull rope (14), which is guided by a first pulley (15) and a second pulley (16) and connected to a pulling handle (13); the front side of the frame (11) is a square tube frame (17) with through holes arranged at intervals on the outside, and the rear end of the second pulley (16) is sleeved on the outside of the square tube frame (17) through a limiting support (18).

3. A high-tension back muscle training device for promoting health through sports according to claim 1, characterized in that: The front side of the bottom bracket (21) is connected to an adjusting arm (28), the adjusting arm (28) is arranged in an arc shape and has a plurality of through holes distributed thereon, and the bottom bracket (21) is connected to the adjusting arm (28) in a limiting manner through a limiting bolt; the front end of the bottom bracket (21) is connected to a telescopic tube (25), and a leg pad (24) is installed at the front end of the telescopic tube (25).

4. A high-tension back muscle training device for promoting health through sports according to claim 1, characterized in that: The moving assembly (33) comprises a housing (331), a guide rod (332), a lead screw (333) and a slide support (334), wherein an opening is arranged on the bottom side of the housing (331), the guide rod (332) and the lead screw (333) are installed in the housing (331), wherein the lead screw (333) is rotatably connected to the inner side of the housing (331) and is parallel to the guide rod (332), and a first motor (335) coaxially connected to the lead screw (333) is arranged outside the housing (331).

5. A high-tension back muscle training device for promoting health through sports according to claim 4, characterized in that: The slide support (334) is sleeved on the guide rod (332) and the lead screw (333), and a back muscle massage component (34) is installed on the lower side of the slide support (334). When the first motor (335) is started, the slide support (334) drives the back muscle massage component (34) to move forward and backward to relieve the back muscles of the user.

6. A high-tension back muscle training device for promoting health through sports according to claim 5, characterized in that: The back muscle massage component (34) comprises an upper bracket (341), a lower bracket (342), a second motor (343), an 8-shaped cam ring (344), a reciprocating module (345) and a massage module (346), wherein an opening is provided in the middle of the lower bracket (342), and the upper bracket (341) is connected to the lower side of the slide support (334).

7. A high-tension back muscle training device for promoting health through sports according to claim 6, characterized in that: A plurality of supporting rods are connected between the upper bracket (341) and the lower bracket (342); the second motor (343) is installed on the bottom side of the upper bracket (341); the shaft end of the second motor (343) extends into the lower side of the opening of the lower bracket (342) and is connected to the 8-shaped cam ring (344).

8. A high-tension back muscle training device for promoting health through sports according to claim 6, characterized in that: The reciprocating modules (345) are provided with four groups and are distributed on the four sides of the lower side of the lower bracket (342). The ends of the four groups of reciprocating modules (345) are hinged by connecting rods, and each reciprocating module (345) includes a sliding column (345a) and a pressing wheel (345b).

9. A high-tension back muscle training device for promoting health through sports according to claim 8, characterized in that: A sliding sleeve (35) is provided at the bottom of the lower bracket (342) at a position corresponding to the reciprocating module (345), and a sliding column (345a) can extend into the sliding sleeve (35). A pressing wheel (345b) is provided at the front end of the sliding column (345a), and the pressing wheel (345b) can cooperate with an 8-shaped cam ring (344). The 8-shaped cam ring (344) can rotate and intermittently contact the pressing wheels (345b) of the four groups of reciprocating modules (345), and make the sliding column (345a) extend out of the sliding sleeve (35).

10. A high-tension back muscle training device for promoting health through sports according to claim 6, characterized in that: The massage module (346) is connected to the front end of the slide column (345a), and the massage module (346) includes an outer bracket (346a) and a plurality of groups of massage rollers (346b) distributed inside the outer bracket (346a) and rotatable, and each massage roller (346b) is provided with particles for massage on the outside.

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