Football special hip joint abduction strength training apparatus

Abstract

The embodiment of the application provides a football special hip joint abduction strength training instrument, and relates to the field of sports training equipment.The football special hip joint abduction strength training instrument comprises a base assembly, a resistance system, a leg fixing assembly and a seat adjusting mechanism; the resistance system and the seat adjusting mechanism are respectively arranged on the top of the base assembly, and the resistance system and the seat adjusting mechanism are arranged in the left-right direction; the leg fixing assembly is connected with the resistance system, and the resistance system is controlled to adjust the resistance when pulling the leg fixing assembly; the resistance system comprises a magnetic control resistance unit, a transmission unit and a resistance output unit; the transmission unit is arranged on the base assembly, and the magnetic control resistance unit and the resistance output unit are respectively and symmetrically arranged on the two sides of the transmission unit. The resistance is generated by cutting the magnetic field through the conductor disc, the rotation speed is low and the resistance is small when the initial force is generated, the rotation speed is high and the resistance is large when the explosive force is generated, so that the explosive training of the hip joint muscle is met.

Description

Technical Field

[0001] This invention relates to the field of sports training equipment, specifically to a football-specific hip abduction strength training device. Background Technology

[0002] Hip abduction strength is a crucial component of a football player's lower limb core strength, directly impacting their ability to change direction, cross from the wing, shoot, defend, and maintain dynamic balance. It is also a key training indicator for preventing groin injuries and hip strain. In a football-specific training system, targeted training of hip abduction strength is a core element in improving athletic performance and reducing the risk of sports injuries.

[0003] Currently, most hip joint training equipment on the market is general fitness equipment, which can provide stable resistance. However, most of the resistance is constant, and the resistance experienced by the trainee during the initial exertion and training process is constant, which is not suitable for explosive muscle strength training.

[0004] Based on this, the present invention is proposed. Summary of the Invention

[0005] According to an embodiment of the present invention, a football-specific hip abduction strength training device is provided to address the problems in the prior art.

[0006] In a first aspect of the invention, a football-specific hip abduction strength training device is provided.

[0007] This football-specific hip abduction strength training device includes: a base assembly, a resistance system, a leg fixation assembly, and a seat adjustment mechanism; the resistance system and the seat adjustment mechanism are respectively installed on the top of the base assembly and are arranged in a left-right direction; the leg fixation assembly is connected to the resistance system, and the resistance system is controllable and can adjust the resistance when pulling the leg fixation assembly; The resistance system includes a magnetically controlled resistance unit, a transmission unit, and a resistance output unit; the transmission unit is mounted on the base assembly, and the magnetically controlled resistance unit and the resistance output end are symmetrically mounted on both sides of the transmission unit. The transmission unit includes a mounting bracket and a transmission shaft; the mounting bracket is mounted on the top of the base assembly, and the transmission shaft is rotatably mounted on the mounting bracket via bearing seats, with both ends passing through both sides of the mounting bracket; The magnetically controlled resistance unit includes: a conductor disk, a first disk base, a gap, permanent magnets, and a second disk base; the conductor disk is connected to a drive shaft and can rotate synchronously with the drive shaft; the first disk base and the second disk base are connected to form an integral chamber structure, and the second disk base is connected to a mounting frame; the first disk base is located inside the conductor disk, and the conductor disk is rotatably connected to the surface of the second disk base; eight permanent magnets are equidistantly arranged on the first disk base along the circumference, with adjacent permanent magnets arranged with alternating polarities; when the drive shaft drives the conductor disk to rotate, resistance is generated.

[0008] Preferably, the magnetically controlled resistance unit further includes: a gap; a radially adjustable gap is provided between the permanent magnet and the conductor disk; the gap adjustment range is 2mm to 10mm.

[0009] Preferably, the base assembly includes a main frame, a counterweight compartment, and casters; The main frame has two casters on one side of its bottom; the main frame has legs on the other side of its bottom; the counterweight compartment is located on the upper surface of the main frame, and there are two counterweight compartments, which are symmetrically installed on both sides of the upper surface of the main frame.

[0010] Preferably, the magnetically controlled resistance unit further includes: a slide rail, a connecting block, a connecting rod, a worm gear disk, and a worm; there are eight slide rails, which are equidistantly radially spaced on the first disk seat, and eight permanent magnets are slidably installed in the eight slide rails; the connecting block is installed on the side opposite to the permanent magnet and the mounting frame; one end of the connecting rod is rotatably installed on the connecting block; the worm gear disk is rotatably installed in the second disk seat, and the other end of the connecting rod is rotatably connected to the worm gear disk; the worm is rotatably installed in the second disk seat, and one end of the worm penetrates through the second disk seat, and the worm is meshed with the worm gear disk.

[0011] Preferably, the resistance output end includes: a wheel; the wheel is fixedly installed at the end of the drive shaft away from the conductor disk, and a hook is installed on the wheel, which is connected to the leg fixing assembly.

[0012] Preferably, the seat adjustment mechanism includes: a seat, a height adjustment component, and a fore-aft adjustment component, wherein the fore-aft adjustment component is installed between the seat and the height adjustment component.

[0013] Preferably, the height adjustment assembly includes: a lifting rod, a fixed rod, a socket, a plug rod, and a spring; the fixed rod is fixedly installed on the upper surface of the main frame; the lifting rod is slidably installed in the fixed rod, with its top end extending out of the fixed rod; the socket is axially formed on the side walls of the lifting rod and the fixed rod; the plug rod is inserted into the socket; and the spring is installed between the plug rod and the fixed rod. Preferably, the front-to-back adjustment assembly includes: a fixed plate, a slide rail, a toothed plate, a connecting plate, a slider, a fixed piece, a pull rod, a positioning plate, a limiting groove, an insert plate, a limiting block, a connecting piece, a slide rod, and a compensation groove; there are two fixed plates, symmetrically installed on the top of the lifting rod; the slide rail is formed on the fixed plate; the toothed plate is installed on the top of the lifting rod, and a plurality of teeth are equidistantly arranged on the upper surface of the toothed plate, with a positioning groove formed between two adjacent teeth; there are two connecting plates, symmetrically installed on the bottom of the seat and corresponding to the two fixed plates; the slider is installed on the connecting plate and slidably installed in the slide rail; the fixed piece is installed on the bottom of the seat; the pull rod is rotatably installed on the fixed piece via a torsion spring; there are two positioning plates, respectively installed on the lower surface of the seat; the limiting groove is formed on the positioning plate; the bottom end of the insert plate is inserted into the toothed plate; the limiting block is installed on the side wall of the insert plate and slidably connected to the limiting groove; the connecting piece is connected to the pull rod; the slide rod is installed on the pull rod; the compensation groove is formed on the top of the insert plate, and the slide rod is slidably installed in the compensation groove. Preferably, the leg fixing assembly includes: a connector, a steel cable, a universal joint, a connecting rod, and a fixing strap; the steel cable passes through the center of the connector, has a diameter of mm, and is connected to a hook on the wheel; two universal joints are connected by the connecting rod, one of which is connected to the steel cable; there are two fixing straps, each connected to a universal joint.

[0014] Preferably, it also includes: a guide rod; the guide rod is installed on the side wall of the lifting rod, and the end of the guide rod is equipped with a flange fitting that can be connected to the connector, and the steel cable passes through the rigid guide rod and is connected to the hook of the wheel.

[0015] One or more technical solutions provided in this application have at least the following technical effects or advantages: 1. The present invention provides a football-specific hip abduction strength training device, which uses a non-contact magnetically controlled resistance unit in conjunction with a permanent magnet array and a conductor disk to ensure that resistance is generated by the conductor disk cutting the magnetic field during operation. This ensures that the rotation speed is low and the resistance is small when initially exerting force, and that the rotation speed is fast and the resistance is large when explosively exerting force, thereby satisfying the explosive training of hip joint muscles; and the resistance can be steplessly adjusted by adjusting the gap.

[0016] 2. The seat adjustment mechanism in this invention integrates height adjustment and fore-and-aft adjustment functions, which can adapt to users of different heights and be compatible with trainees of different leg lengths and body types. It ensures that the hip joint is in the correct force-generating position during training, reduces movement compensation, and lowers the risk of sports injuries. It is suitable for training professional football players and can also meet the needs of youth training and college physical education teaching.

[0017] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of the present invention, nor is it intended to restrict the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0018] The above and other features, advantages, and aspects of the various embodiments of the present invention will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein: Figure 1 A schematic diagram of a football-specific hip abduction strength training device according to an embodiment of the present invention is shown. Figure 2 A front view of a football-specific hip abduction strength training device according to an embodiment of the present invention is shown; Figure 3 An exploded structural schematic diagram of the seat adjustment mechanism of a football-specific hip abduction strength training device according to an embodiment of the present invention is shown. Figure 4 An exploded view of the seat adjustment mechanism of a football-specific hip abduction strength training device according to an embodiment of the present invention is shown. Figure 5 A partial cross-sectional view of the seat adjustment mechanism of a football-specific hip abduction strength training device according to an embodiment of the present invention is shown; Figure 6 The leg fixation component of a football-specific hip abduction strength training device according to an embodiment of the present invention is shown. Figure 7 A side view of a football-specific hip abduction strength training device according to an embodiment of the present invention is shown; Figure 8 A cross-sectional view of a resistance system for a football-specific hip abduction strength training device according to an embodiment of the present invention is shown. Figure 9 A cross-sectional view of the conductor plate of a football-specific hip abduction strength training device according to an embodiment of the present invention is shown; Figure 10 A cross-sectional view of the conductor disc of a football-specific hip abduction strength training device according to an embodiment of the present invention is shown. Figure 11 A schematic diagram of a worm gear disc, a football-specific hip abduction strength training device according to an embodiment of the present invention, is shown.

[0019] The attached figures are labeled as follows: 1. Base assembly; 11. Main frame; 12. Counterweight compartment; 13. Casters; 2. Resistance system; 21. Mounting bracket; 22. Drive shaft; 23. Wheel disc; 24. Conductor disc; 25. First disc base; 26. Clearance; 27. Permanent magnet; 28. Slide rail; 29. ​​Connecting block; 3. Leg fixing assembly; 31. Connector; 32. Steel cable; 33. Universal joint; 34. Connecting rod; 35. Fixing strap; 4. Seat adjustment mechanism; 41. Seat; 42. Lifting rod; 43. Fixing rod; 44. 45. Insertion hole; 46. Insertion rod; 47. Spring; 48. Fixing plate; 49. Slide rail; 40. Toothed plate; 210. Connecting rod; 211. Second disc base; 212. Worm gear disc; 213. Worm; 214. Clearance; 410. Connecting plate; 411. Slider; 412. Fixing piece; 413. Pull rod; 414. Positioning plate; 415. Limiting groove; 416. Insertion plate; 417. Limiting block; 418. Connecting piece; 419. Slide rod; 420. Compensation groove; 5. Display control unit; 6. Guide rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0022] like Figure 1 and Figure 2 As shown, this soccer-specific hip abduction strength training device includes a base assembly 1, a resistance system 2, a leg fixation assembly 3, a seat adjustment mechanism 4, and a display and control unit 5. The resistance system 2 and the seat adjustment mechanism 3 are respectively mounted on the top of the base assembly 1, and are arranged in a left-right direction. The leg fixation assembly 3 is connected to the resistance system 2, and the resistance system 2 is controllable to adjust the resistance when pulling the leg fixation assembly 3. The control unit 5 is mounted on the resistance system 2.

[0023] refer to Figure 1 and Figure 2The base assembly 1 includes a main frame 11, a counterweight compartment 12, and casters 13. The main frame 11 is made of Q235 steel plate, with main dimensions of 1200mm × 600mm × 50mm, and its edges are smoothed. Two 75mm diameter polyurethane casters 13 are located on one side of the bottom of the main frame 11. The casters 13 are selected based on existing equipment, providing locking capability; any model meeting the requirements can be chosen. Support legs are located on the other side of the bottom of the main frame 11, and the cooperation between the support legs and the casters 13 provides stable support for the main frame 11. The counterweight chamber 12 is located on the upper surface of the main frame 11. Two sets of counterweights are installed within the counterweight chamber 12, with four counterweights in each set. Each counterweight weighs 5 kg, and the total counterweight weight in the chamber 12 is 40 kg. The counterweight chamber 12 also has slots for matching and positioning the counterweights. The counterweights are made of low-carbon steel with a powder-coated surface to prevent corrosion and scratches. In this embodiment, there are two counterweight chambers 12, symmetrically installed on both sides of the upper surface of the main frame 11 to ensure stable force distribution.

[0024] refer to Figure 1 , Figure 2 and Figure 3 The resistance system 2 includes a magnetically controlled resistance unit, a transmission unit, and a resistance output unit. The transmission unit is mounted on the main frame 11, and the magnetically controlled resistance unit and the resistance output unit are symmetrically mounted on both sides of the transmission unit.

[0025] The transmission unit includes a mounting bracket 21 and a drive shaft 22. The mounting bracket 21 is mounted on the top of the main frame 11, and the drive shaft 22 is rotatably mounted on the mounting bracket 21 through bearing seats, with both ends passing through both sides of the mounting bracket 21. The drive shaft 22 is made of bearing steel GCr15 and has a diameter of 25mm.

[0026] The magnetically controlled resistance unit includes: a conductor disk 24, a first disk base 25, a gap 26, a permanent magnet 27, and a second disk base 211. The conductor disk 24 is connected to the drive shaft 22 via splines and keyways, and can rotate synchronously with the drive shaft 22. The conductor disk 24 is made of pure copper T2 material, with a diameter of 200mm and a thickness of 3mm. The first disk base 25 and the second disk base 211 are connected to form an integral chamber structure, and the second disk base 211 is connected to the mounting bracket 21. The first disk base 25 is located inside the conductor disk 24, and the conductor disk 24 is rotatably connected to the surface of the second disk base 211. Eight permanent magnets 27 are equidistantly arranged circumferentially on the first disk 25. The permanent magnets 27 are neodymium iron boron magnets, grade N52, with individual magnet dimensions of 50mm × 25mm × 12mm. They are radially magnetized relative to the conductor disk 24. The eight permanent magnets 27 are arranged equidistantly circumferentially, with adjacent magnets 27 arranged with alternating polarities, ensuring that the polarities of adjacent magnets are completely opposite, with N and S poles alternating. This forms a ring-shaped magnetic field generator coaxial with the conductor disk 24. When the drive shaft 22 rotates the conductor disk 24, resistance is generated. A radially adjustable gap 214 is provided between the permanent magnets 27 and the conductor disk 24. The gap 214 is adjustable from 2mm to 10mm, corresponding to a resistance output range of 5N to 100N. When the gap is 10mm, the resistance is minimum, approximately 5N; when the gap is 2mm, the resistance is maximum, approximately 100N.

[0027] The magnetic resistance unit also includes: slide rails 28, connecting blocks 29, connecting rods 210, worm gear disks 212, and worms 213. There are eight slide rails 28, equidistantly radially spaced on the first disk seat 25. Eight permanent magnets 27 are slidably mounted in the eight slide rails 28, and the radial length of each slide rail 28 is 10 mm longer than the length of each permanent magnet 27. The connecting blocks 29 are mounted on the side opposite to the permanent magnets 27 and the mounting bracket 21. One end of the connecting rod 210 is rotatably mounted on the connecting block 29. The worm gear disk 212 is rotatably mounted within the second disk seat 211, and the other end of the connecting rod 210 is rotatably connected to the worm gear disk 212. The worm 213 is rotatably mounted inside the second disc seat 211, with one end passing through the second disc seat 211. The worm 213 is meshed with the worm wheel 212. Rotating the worm 213 can drive the worm wheel 212 to rotate. The transmission system between the two has self-locking properties. When the worm 213 stops rotating, the worm wheel 212 will not rotate on its own.

[0028] The resistance output end includes a wheel 23. The wheel 23 is fixedly mounted on the end of the drive shaft 22 away from the conductor disk 24. A hook is mounted on the wheel 23, and the hook is connected to the leg fixing assembly 3. Pulling the leg fixing assembly 3 can rotate the wheel 23.

[0029] When the leg fixing component 3 is pulled, the power is transmitted to the drive shaft 22 via the wheel 23, causing the drive shaft 22 to rotate, which in turn causes the conductor disk 24 to rotate synchronously with the drive shaft. The rotating conductor disk 24 continuously cuts the annular alternating magnetic field formed by the eight permanent magnets 27. According to Faraday's law of electromagnetic induction, a closed annular eddy current is induced inside the conductor disk 24. According to Lenz's law, the eddy current will generate an induced magnetic field in the opposite direction to the original magnetic field. The two magnetic fields interact to form a braking torque that opposes the rotation of the conductor disk 24. This braking torque is transmitted in the opposite direction to the output end via the drive shaft and the wheel, forming a perceptible motion resistance. During adjustment, the worm gear 213 is rotated, causing the worm wheel disk 212 to rotate. The connecting rod 210 pulls the connecting block 29 to drive the permanent magnet 27 to slide in the slide rail 28. The distance 26 between the eight permanent magnets 27 and the conductor disk 24 can be adjusted synchronously. The magnetic induction intensity at the conductor disk 24 is controlled by the law that the magnetic field strength decreases with the increase of distance, thereby linearly adjusting the eddy current size and braking torque. Finally, the braking torque is transmitted in reverse through the transmission system, outputting a resistance of 5N to 100N.

[0030] This system is suitable for explosive training of hip joint muscle abduction force. When using it, the hip joint is quickly abducted. Initially, the drive shaft 22 rotates at a low speed and the vortex intensity is very weak, resulting in little resistance. As the muscle force explodes, the speed of the wheel 23 and drive shaft 22 increases rapidly. As the rotation speed increases, the vortex intensity increases rapidly, and the resistance becomes clear and obvious quickly.

[0031] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The seat adjustment mechanism 4 includes: a seat 41, a height adjustment component and a fore-and-aft adjustment component, with the fore-and-aft adjustment component installed between the seat 41 and the height adjustment component.

[0032] The height adjustment assembly includes: a lifting rod 42, a fixed rod 43, a socket 44, a plug rod 45, and a spring 46. The fixed rod 43 is fixedly mounted on the upper surface of the main frame 11. The lifting rod 42 is slidably mounted in the fixed rod 43, with its top end extending out of the fixed rod 43. The socket 44 is axially formed on the sidewalls of the lifting rod 42 and the fixed rod 43. The plug rod 45, with a diameter of 8 mm and a galvanized surface, is inserted into the socket 44. The spring 46 is installed between the plug rod 45 and the fixed rod 43.

[0033] The front-to-back adjustment assembly includes: a fixed plate 47, a slide rail 48, a toothed plate 49, a connecting plate 410, a slider 411, a fixing piece 412, a pull rod 413, a positioning plate 414, a limiting groove 415, an insert plate 416, a limiting block 417, a connecting piece 418, a slide rod 419, and a compensation groove 420. There are two fixed plates 47, symmetrically installed at the top of the lifting rod 42. The slide rail 48 is formed on the fixed plate 47. The toothed plate 49 is installed at the top of the lifting rod 42, and its upper surface has several teeth evenly spaced, forming a positioning groove between adjacent teeth. There are two connecting plates 410, symmetrically installed at the bottom of the seat 41, corresponding to the two fixed plates 47. Slider 411 is mounted on connecting plate 410 and slidably mounted in slide rail 48. Each connecting plate 410 has at least two sliders 411 mounted on it. The slidable mounting of two or more sliders 411 in the same slide rail 48 ensures the stability of the connecting plate 410 under force, thus ensuring the stability of the seat 41. Fixing plate 412 is mounted on the bottom of seat 41. Pull rod 413 is rotatably mounted on fixing plate 412 via a torsion spring. There are two positioning plates 414, each mounted on the lower surface of seat 41. Limiting groove 415 is formed on positioning plate 414. The bottom end of insert plate 416 is interlocked with toothed plate 49. Limiting block 417 is mounted on the side wall of insert plate 416 and slidably connected to limiting groove 415. Connecting plate 418 is connected to pull rod 413. Sliding rod 419 is mounted on pull rod 413. Compensation groove 420 is formed on the top of insert plate 416, and sliding rod 419 is slidably mounted within compensation groove 420.

[0034] When in use, the structure works as follows: Pulling the insert rod 45 radially outward stretches the spring 46, causing the inner end of the insert rod 45 to exit from the insertion hole 44 of the lifting rod 42, releasing the axial positioning between the lifting rod 42 and the fixed rod 43; the lifting rod 42 slides up and down along the axial direction of the fixed rod 43, causing the seat 41 to rise and fall synchronously. After the seat 41 reaches the target height, the corresponding insertion hole 44 on the side wall of the lifting rod 42 is aligned coaxially with the corresponding insertion hole 44 on the side wall of the fixed rod 43; the insert rod 45 is released, and under the restoring force of the spring 46, it returns to its original position and is inserted into the aligned insertion hole 44, completing the relative fixation of the lifting rod 42 and the fixed rod 43, and achieving reliable locking of the seat height. Pulling the lever 413 downwards causes it to rotate around its hinge axis with the fixed plate 412, overcoming the return torque of the torsion spring. During the rotation of the lever 413, the slide rod 419 slides along the compensation groove 420 and drives the insert plate 416 to slide upwards along the limiting groove 415, causing the bottom end of the insert plate 416 to disengage from the positioning groove on the toothed plate 49, thus releasing the position lock of the seat 41 in the front-back direction. Pushing the seat 41 back and forth along the extension direction of the slide rail 48 causes the seat 41 to move smoothly back and forth through the sliding cooperation between the slider 411 and the slide rail 48, adjusting it to the target position. Releasing the lever 413 causes it to rotate in the opposite direction to reset under the return torque of the torsion spring, driving the insert plate 416 to slide downwards along the limiting groove 415. The bottom end of the insert plate 416 is engaged in the positioning groove at the corresponding position of the toothed plate 49, completing the reliable locking of the seat 41's front-back position.

[0035] Furthermore, the height adjustment range between the lifting rod 42 and the fixed rod 43 is 450mm to 650mm. The total length of the toothed plate 49 is 200mm, ensuring that the sliding adjustment range is between 0 and 200mm, and the length of the slide rail 48 is adapted to it.

[0036] Seat 41's seat cushion is made of high-density polyurethane foam with a density of 60kg / m³ and a thickness of 80mm, covered with a polyester three-dimensional mesh fabric with a breathability greater than 800mm / s. The backrest is made of high-density memory foam with a density of 45kg / m³ and a thickness of 50mm, covered with the same three-dimensional mesh fabric.

[0037] Furthermore, the seat 41 includes a seat cushion and a backrest. The bottom end of the backrest is hinged to the rear end of the seat cushion, and the backrest is inclined at an obtuse angle relative to the seat cushion. A gas spring is installed between the seat cushion and the backrest, with its two ends hinged to the sides of the seat cushion and the backrest, respectively. This provides movable support for the backrest and allows for adjustment and locking of the backrest's tilt angle. The gas spring has a structure that allows it to be locked at any position within its working stroke, enabling it to stably limit the backrest to a target angle within the adjustment range. The tilt angle adjustment range of the backrest is 85° to 115°. The gas spring is an existing device; a suitable model can be selected, and further details are omitted.

[0038] refer to Figure 1 , Figure 2 and Figure 6 The leg fixation assembly 3 includes: a connector 31, a steel cable 32, a universal joint 33, a connecting rod 34, and a fixing strap 35. The connector 31 has a flange structure, and the steel cable 32, with a diameter of 3mm, passes through the center of the connector 31 and is connected to a hook on the wheel 23. Two universal joints 33 are connected by the connecting rod 34, with one universal joint 33 connected to the steel cable 32. There are two fixing straps 35, each connected to a universal joint 33, used for fixing the thigh and lower leg respectively. The fixing strap 35 includes an aluminum alloy support rod and a thigh fixing strap. The support rod is made of 6061-T6 aluminum alloy, with a diameter of 25mm and a wall thickness of 3mm. The thigh fixing strap uses 50mm wide nylon webbing, secured with Velcro, and can accommodate users with thigh circumferences of 35cm to 60cm. The universal rotary joint 43 is an existing device; a model with a rated dynamic load of not less than 3.5kN, a rated static load of not less than 5.8kN, and a rotational torque of less than 0.5N・m is sufficient. During use, the fixing strap 35 is fixed to the thigh or calf, or it can be connected to the thigh and calf at the same time. Then, according to the training movements, the leg abduction movement is performed to pull the steel cable 32.

[0039] Further reference Figure 3 and Figure 4 To ensure the stability of the leg fixing component 3 when it is pulled, a guide rod 6 is also installed on the side wall of the lifting rod 42. The end of the guide rod 6 is equipped with a flange fitting that can be connected to the connector 31. The steel cable 32 passes through the rigid guide rod 6 and is connected to the hook of the wheel 23.

[0040] refer to Figure 1 and Figure 2 The display control unit 5 is mounted on the top of the mounting bracket 21, and its main body is the display. In addition, in actual use, an S-type tension and compression sensor with a range of 200N is selected. One end of the sensor is fixedly connected to the free end of the steel cable 32, and the other end is fixedly connected to the hook on the wheel 23. The whole is coaxial with the direction of tension. The sensor is electrically connected to the display, and data can be displayed on the display.

[0041] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A football-specific hip abduction strength training device, characterized in that, include: The base assembly (1), resistance system (2), leg fixing assembly (3), and seat adjustment mechanism (4) are respectively installed on the top of the base assembly (1) and arranged in the left and right directions; the leg fixing assembly (3) is connected to the resistance system (2), and the resistance system (2) is controlled to adjust the resistance when pulling the leg fixing assembly (3); The resistance system (2) includes a magnetically controlled resistance unit, a transmission unit, and a resistance output unit; the transmission unit is mounted on the base assembly (1), and the magnetically controlled resistance unit and the resistance output end are symmetrically mounted on both sides of the transmission unit; The transmission unit includes: a mounting bracket (21) and a transmission shaft (22); the mounting bracket (21) is mounted on the top of the base assembly (1), and the transmission shaft (22) is rotatably mounted on the mounting bracket (21) through a bearing seat, and both ends pass through both sides of the mounting bracket (21); The magnetically controlled resistance unit includes: a conductor disk (24), a first disk seat (25), a gap (26), permanent magnets (27), and a second disk seat (211); the conductor disk (24) is connected to the drive shaft (22) and can rotate synchronously with the drive shaft 22; the first disk seat (25) and the second disk seat (211) are connected to form an integral chamber structure, and the second disk seat (211) is connected to the mounting bracket (21). The first disk seat (25) is located inside the conductor disk (24), and the conductor disk (24) is rotatably connected to the surface of the second disk seat (211); eight permanent magnets (27) are equidistantly arranged on the first disk seat (25) along the circumferential direction, and adjacent permanent magnets (27) are arranged with alternating polarities; when the drive shaft (22) drives the conductor disk (24) to rotate, resistance will be generated.

2. The football-specific hip abduction strength training device according to claim 1, characterized in that, The magnetically controlled resistance unit further includes a gap (214); a radially adjustable gap (214) is provided between the permanent magnet (27) and the conductor disk (24); the gap (214) is adjustable from 2 mm to 10 mm.

3. The football-specific hip abduction strength training device according to claim 2, characterized in that, The base assembly (1) includes a main frame (11), a counterweight compartment (12), and casters (13). The main frame (11) has two casters (13) on one side of its bottom; the main frame (11) has legs on the other side of its bottom; the counterweight compartment (12) is located on the upper surface of the main frame (11), and there are two counterweight compartments (12) which are symmetrically installed on both sides of the upper surface of the main frame (11).

4. The football-specific hip abduction strength training device according to claim 3, characterized in that, The magnetic resistance unit further includes: slide rails (28), connecting blocks (29), connecting rods (210), worm gear disks (212), and worms (213); there are eight slide rails (28), which are equidistantly radially arranged on the first disk seat (25) along the circumference, and eight permanent magnets (27) are slidably installed in the eight slide rails (28); the connecting blocks (29) are installed on the side opposite to the permanent magnets (27) and the mounting bracket (21); one end of the connecting rod (210) is rotatably installed on the connecting block (29); the worm gear disk (212) is rotatably installed in the second disk seat (211), and the other end of the connecting rod (210) is rotatably connected to the worm gear disk (212); the worm (213) is rotatably installed in the second disk seat (211), and one end of the worm (213) penetrates through the second disk seat (211), and the worm (213) is meshed with the worm gear disk (212).

5. The football-specific hip abduction strength training device according to claim 4, characterized in that, The resistance output end includes: a wheel (23); the wheel (23) is fixedly installed at the end of the drive shaft (22) away from the conductor disk (24), and a hook is installed on the wheel (23), which is connected to the leg fixing component (3).

6. The football-specific hip abduction strength training device according to claim 5, characterized in that, The seat adjustment mechanism (4) includes: a seat (41), a height adjustment component and a fore-aft adjustment component, wherein the fore-aft adjustment component is installed between the seat (41) and the height adjustment component.

7. The football-specific hip abduction strength training device according to claim 6, characterized in that, The height adjustment assembly includes: a lifting rod (42), a fixed rod (43), a socket (44), a plug rod (45), and a spring (46); the fixed rod (43) is fixedly installed on the upper surface of the main frame (11); the lifting rod (42) is slidably installed in the fixed rod (43), and its top end extends out of the fixed rod (43); the socket (44) is axially opened on the side wall of the lifting rod (42) and the fixed rod (43); the plug rod (45) is inserted into the socket (44); and the spring (46) is installed between the plug rod (45) and the fixed rod (43).

8. The football-specific hip abduction strength training device according to claim 7, characterized in that, The front and rear adjustment assembly includes: a fixed plate (47), a slide rail (48), a toothed plate (49), a connecting plate (410), a slider (411), a fixed piece (412), a pull rod (413), a positioning plate (414), a limiting groove (415), a insert plate (416), a limiting block (417), a connecting piece (418), a slide rod (419), and a compensation groove (420); there are two fixed plates (47), which are symmetrically installed on the top of the lifting rod (42); the slide rail (48) is opened on the fixed plate (47); the toothed plate (49) is installed on the top of the lifting rod (42), and a number of teeth are equidistantly arranged on the upper surface of the toothed plate (49), and a positioning groove is formed between two adjacent teeth; there are two connecting plates (410), which are symmetrically installed on the bottom of the seat (41) and correspond to the two fixed plates (47); the slide rail (411), a fixed piece (412), a pull rod (413), a positioning plate (414), a limiting groove (415), a insert plate (416), a limiting block (417), a connecting piece (418), a slide rod (419), and a compensation groove (420); The block (411) is installed on the connecting plate (410) and slidably installed in the slide rail (48); the fixing plate (412) is installed on the bottom end of the seat (41); the pull rod (413) is rotatably installed on the fixing plate (412) by a torsion spring; there are two positioning plates (414), which are respectively installed on the lower surface of the seat (41); the limiting groove (415) is opened on the positioning plate (414); the bottom end of the insert plate (416) is inserted into the toothed plate (49); the limiting block (417) is installed on the side wall of the insert plate (416) and slidably connected to the limiting groove (415); the connecting plate (418) is connected to the pull rod (413); the slide rod (419) is installed on the pull rod (413); the compensation groove (420) is opened on the top of the insert plate (416), and the slide rod (419) is slidably installed in the compensation groove (420).

9. The football-specific hip abduction strength training device according to claim 8, characterized in that, The leg fixing assembly (3) includes: a connector (31), a steel cable (32), a universal joint (33), a connecting rod (34), and a fixing strap (35); the steel cable (32) passes through the center of the connector (31), the steel cable (32) has a diameter of 3mm, and it is connected to a hook on the wheel (23); two universal joints (33) are connected by the connecting rod (34), one of which is connected to the steel cable (32); there are two fixing straps (35), which are connected to the universal joints (33) respectively.

10. The football-specific hip abduction strength training device according to claim 9, characterized in that, Also includes: Guide rod (6); The guide rod (6) is installed on the side wall of the lifting rod (42). The end of the guide rod (6) is equipped with a flange fitting that can be connected to the connector (31). The steel cable (32) passes through the rigid guide rod (6) and is connected to the hook of the wheel (23).

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