Visual badminton learning system and auxiliary training device

Abstract

The invention discloses a visual badminton learning system and auxiliary training device.The visual badminton learning system comprises a power base, the lower end of the power base is provided with four sets of movable paired wheels, the center of the upper end of the power base is fixedly connected with a telescopic sliding rod, and the upper end of the telescopic sliding rod is sleeved with a telescopic sleeve rod; the telescopic sliding rod is slidably connected into the lower end of the telescopic sleeve rod, the upper end of the telescopic sleeve rod is rotatably connected with an adjusting base, the pitching machine is rotatably connected into the upper end of the adjusting base, a pitching opening is formed in the front end of the pitching machine, a plurality of systems are arranged in the auxiliary tablet computer, and court information can be input for precise positioning; training contents including serving position, height, angle, strength, frequency, frequency and the like are comprehensively edited and simulated, meanwhile, flying tracks and falling points of badminton balls can be simulated, ball speed can be displayed, training is more scientific and visual, various training parameters can be visually known and adjusted through a screen, and pertinence and systematicness of training are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of related badminton training, and in particular relates to a visual badminton learning system and an auxiliary training device. Background Art

[0002] In the field of badminton training, existing training methods and equipment have many shortcomings. Traditional training mainly relies on manual guidance from coaches and simple equipment, which makes it difficult to accurately control parameters such as the position, height, angle, strength, frequency and frequency of serves, resulting in poor targeting and systematic training.

[0003] On the one hand, coaches cannot accurately provide students with a standardized training environment, and the instability of serve parameters makes it difficult for students to conduct targeted practice. On the other hand, students find it difficult to intuitively understand whether their movements are standardized during training, lack effective self-evaluation methods, and the training effect is slow to improve.

[0004] Existing training equipment usually has a single function, is inconvenient to move, and is difficult to adapt to different venues and changes in training needs. In actual applications, these devices often cannot achieve accurate positioning, cannot quickly move to the designated serving position, and are difficult to accurately adjust the serving height and angle, which greatly limits the quality and efficiency of training. At the same time, the lack of recording and playback functions for trainees' training movements is not conducive to trainees discovering and correcting their own problems. Summary of the invention

[0005] The purpose of the present invention is to provide a visual badminton learning system and an auxiliary training device to solve the problems of single function and inconvenient movement of the existing training equipment mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a visualized badminton auxiliary training device, comprising a power base, wherein four sets of movable pairs of wheels are arranged at the lower end of the power base, a telescopic slide rod is fixedly connected to the center of the upper end of the power base, a telescopic sleeve rod is sleeved on the upper end of the telescopic slide rod, and the telescopic slide rod is slidably connected to the lower end of the telescopic sleeve rod, an adjusting base is rotatably connected to the upper end of the telescopic sleeve rod, a serving machine is rotatably connected to the upper end of the adjusting base, and a serving port is opened inside the front end of the serving machine, a badminton tube is connected to the rear side of the upper end of the serving machine, an auxiliary tablet computer is fixedly connected to the front side of the lower end of the adjusting base, and a camera is arranged on the upper side of the front end of the auxiliary tablet computer.

[0007] Preferably, an elevation motor is fixedly connected to the left end of the adjustment base, and the elevation motor is rotatably connected to the ball machine through a rotating shaft, and a plurality of connecting rods are fixedly connected to the outer side of the lower end of the adjustment base, and the plurality of connecting rods are rotatably connected to the outside of the telescopic sleeve rod.

[0008] Preferably, the lower ends of the plurality of connecting rods are fixedly connected with bevel gears, a positioning motor is provided on the lower side of the front end of the telescopic sleeve rod, and the positioning motor is located on the front side of the lower end of the bevel gear, and a convex height adjustment tooth groove is provided inside the front end of the telescopic slide rod.

[0009] Preferably, the lower end of the power base is fixedly connected to two limit sliding frames arranged in a cross shape, and the two limit sliding frames are distributed up and down, and two adjusting gear rods are slidably connected inside the two limit sliding frames, and the two adjusting gear rods located inside the same limit sliding frame are respectively located on both sides of the limit sliding frame.

[0010] Preferably, a steering motor is arranged inside the lower end of the positioning gear rod away from the power base, and the lower end of the steering motor is rotatably connected to the power motor through a rotating shaft, and each set of the movable pair of wheels is rotatably connected to the front and rear ends of the power motor, and a telescopic motor is arranged inside the center of the lower end of the power base, and the lower end of the telescopic motor is rotatably connected to a telescopic gear, and the telescopic gear is located between the four positioning gear rods and meshes with the four positioning gear rods.

[0011] Preferably, the positioning motor is rotatably connected to a control shaft near the center of one end of the telescopic sleeve rod, and the control shaft passes through the telescopic sleeve rod and the height adjustment tooth groove through a limit slot, and the limit slot is opened inside the lower side of the front end of the telescopic sleeve rod, and the control shaft is fixedly connected to the outside of one side of the positioning motor near the bevel gear, and the bevel gear is meshed with the lower end of the helical gear.

[0012] Preferably, the control shaft is fixedly connected to a height adjusting gear at one end away from the positioning motor, and the height adjusting gear is rotatably connected to the inside of the height adjusting tooth groove, and can engage with a gear rail arranged on the right inner wall of the height adjusting tooth groove opening; a limit block is clamped inside the limit slot, and the rear end of the limit block is slidably connected to the inside of the height adjusting tooth groove; the limit block is located between the bevel gear and the height adjusting gear, and is located inside the front end of the helical gear, and the control shaft is rotatably connected to the inside of the limit block.

[0013] Preferably, the outer wall at the front end of the limit block is arc-shaped and can fit tightly with the inner wall at the front end of the bevel gear. The control is connected to the limit block through a limit ring, and the limit ring is rotatably connected to the inside of the limit block and fixedly connected to the outside of the control shaft.

[0014] Preferably, the lower end of the positioning motor is fixedly connected to a hydraulic telescopic rod, a hydraulic seat is sleeved on the outside of the rear end of the hydraulic telescopic rod, and the hydraulic telescopic rod is slidably connected to the inside of the front end of the hydraulic seat, the hydraulic seat is fixedly connected to the lower side of the front end of the telescopic sleeve rod and is located at the lower side of the front end of the limiting slot, the rear sides of the left and right ends of the hydraulic seat are connected to a hydraulic press through a connecting pipe, and the hydraulic press is fixedly connected to the lower side of the rear end of the telescopic sleeve rod.

[0015] A visual badminton learning system:

[0016] ① The auxiliary tablet computer has built-in control system, simulation system, positioning system and recording system;

[0017] ② Input the badminton court information into the positioning system and locate the training device through the positioning system;

[0018] ③ Edit the training content through the auxiliary tablet computer, and simulate the edited training content through the simulation system;

[0019] ④ The control system issues instructions to the ball machine, elevation motor, position adjustment motor, steering motor, power motor, telescopic motor and hydraulic press to control the training device to start training;

[0020] ⑤ Record the trainees’ training movements through the recording system, and play them back and compare them.

[0021] Compared with the prior art, the present invention provides a visual badminton learning system and auxiliary training device, which have the following beneficial effects:

[0022] 1. Highly visualized and precise control: The auxiliary tablet computer has multiple built-in systems, which can input court information for precise positioning, and comprehensively edit and simulate training content, including serve position, height, angle, strength, frequency and frequency, etc. At the same time, it can simulate the flight trajectory and landing point of badminton and display the ball speed, making training more scientific and intuitive. In addition, various training parameters can be intuitively understood and adjusted through the screen, improving the targeted and systematic nature of training.

[0023] 2. Flexible movement and stable support: The four sets of moving wheels at the lower end of the power base can quickly move the training device, and the telescopic motor, telescopic gear and positioning gear rod can be used to unfold the moving wheels to increase the stability of the device during movement. The steering motor and power motor can accurately control the moving direction and speed, quickly reach the edited serving position and achieve precise positioning.

[0024] 3. Precise adjustment of height and angle: The positioning motor can accurately adjust the height of the adjustment base and the serving machine through the engagement of the height adjustment gear and the height adjustment tooth groove, and the stable position is ensured by the cooperation of the bevel gear and the limit block during the adjustment process. The hydraulic press controls the sliding of the positioning motor and the hydraulic telescopic rod to achieve the engagement of the bevel gear and the bevel gear, thereby adjusting the serving direction, and then combined with the elevation motor to control the elevation angle of the serving machine, the serving angle can be accurately controlled.

[0025] 4. Training recording and playback function: The recording system records the trainees’ training movements through the camera of the auxiliary tablet computer and can play them back, helping trainees to quickly identify deficiencies in training and correct them, thereby improving training results. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is an operation flow chart of the badminton learning system of the present invention.

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the badminton training device of the present invention.

[0028] Figure 3 It is a schematic diagram of the power base connection structure of the present invention.

[0029] Figure 4 For the present invention Figure 3 Enlarged schematic diagram at point A in the middle.

[0030] Figure 5 It is a schematic diagram of the connection structure of the positioning gear rod of the present invention.

[0031] Figure 6 For the present invention Figure 3 Enlarged schematic diagram of point B in the middle.

[0032] Figure 7 It is a schematic diagram of the helical gear connection structure of the present invention.

[0033] Figure 8 For the present invention Figure 7 Enlarged schematic diagram at point C in the middle.

[0034] Fig. 9 It is a schematic diagram of the connection structure of the positioning motor of the present invention.

[0035] Fig.10 For the present invention Fig. 9 Enlarged schematic diagram at point D in the middle.

[0036] In the figure: 1. power base; 2. moving pair of wheels; 3. telescopic slide rod; 4. telescopic sleeve rod; 5. adjustment base; 6. serving machine; 7. badminton tube; 8. auxiliary tablet computer; 9. elevation motor; 10. connecting rod; 11. bevel gear; 12. adjustment motor; 13. height adjustment tooth groove; 14. limit slide frame; 15. adjustment gear rod; 16. steering motor; 17. power motor; 18. telescopic motor; 19. telescopic gear; 20. limit slot; 21. bevel gear; 22. height adjustment gear; 23. limit block; 24. limit ring; 25. hydraulic telescopic rod; 26. hydraulic seat; 27. hydraulic press. DETAILED DESCRIPTION

[0037] 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.

[0038] The present invention provides Figure 1-Figure 10 A visualized badminton auxiliary training device is shown, comprising a power base 1, wherein four sets of movable pairs of wheels 2 are arranged at the lower end of the power base 1, a telescopic slide rod 3 is fixedly connected at the center of the upper end of the power base 1, a telescopic sleeve rod 4 is sleeved on the upper end of the telescopic slide rod 3, and the telescopic slide rod 3 is slidably connected to the lower end of the telescopic sleeve rod 4, an adjusting base 5 is rotatably connected to the upper end of the telescopic sleeve rod 4, a serving machine 6 is rotatably connected to the upper end of the adjusting base 5, and a serving port is provided inside the front end of the serving machine 6, a badminton tube 7 is connected to the rear side of the upper end of the serving machine 6, an auxiliary tablet computer 8 is fixedly connected to the front side of the lower end of the adjusting base 5, and a camera is arranged on the upper side of the front end of the auxiliary tablet computer 8. Since the auxiliary tablet computer 8 has a built-in control system, a simulation system, a positioning system and a recording system, the information of the badminton court is input into the positioning system, and the real scene photographed by the camera of the auxiliary tablet computer 8 is measured for distance, and then analyzed by the positioning system, so as to locate the position of the training device.

[0039] Preferably, the training content is edited through the screen of the auxiliary tablet computer 8, such as the serving position, serving height, serving angle, serving strength, serving frequency and serving frequency, and the edited training content is simulated through the screen of the auxiliary tablet computer 8, such as simulating the flight trajectory and landing point of a badminton, and synchronously displaying the ball speed during the trajectory.

[0040] Preferably, two limit sliding frames 14 arranged in a cross shape are fixedly connected to the lower end of the power base 1, and the two limit sliding frames 14 are distributed up and down, and two position adjusting gear rods 15 are slidably connected inside the two limit sliding frames 14, and the two position adjusting gear rods 15 located inside the same limit sliding frame 14 are respectively located on both sides of the limit sliding frame 14, and a steering motor 16 is arranged inside the lower end of the position adjusting gear rod 15 away from the power base 1. The lower end of the steering motor 16 is rotatably connected to a power motor 17 through a rotating shaft, and each set of moving wheels 2 is rotatably connected to the front and rear ends of the power motor 17. A telescopic motor 18 is arranged inside the center of the lower end of the power base 1, and the lower end of the telescopic motor 18 is rotatably connected to a telescopic gear 19, and the telescopic gear 19 is located The four adjustment gear rods 15 are located between the two gear rods 15 and meshed with the four adjustment gear rods 15. The start of training is controlled by the screen of the auxiliary tablet computer 8. At this time, the control system issues a command to the telescopic motor 18. The telescopic motor 18 drives the telescopic gear 19 to rotate. The telescopic gear 19 meshes with the four adjustment gear rods 15 to allow the four groups of moving wheels 2 to expand outward, so that the training device can move more stably and quickly in the badminton court. At this time, the control system issues a command to the steering motor 16 and the power motor 17, controls the direction of movement through the steering motor 16, and drives each group of moving wheels 2 to rotate through the power motor 17, so that the training device can quickly move to the edited serving position and be accurately positioned through the positioning system.

[0041] Preferably, a plurality of connecting rods 10 are fixedly connected to the outer side of the lower end of the adjustment base 5, and the plurality of connecting rods 10 are rotatably connected to the outside of the telescopic sleeve rod 4, a bevel gear 11 is fixedly connected to the lower end of the plurality of connecting rods 10, a positioning motor 12 is provided on the lower side of the front end of the telescopic sleeve rod 4, and the positioning motor 12 is located on the front side of the lower end of the bevel gear 11, a "convex" shaped height adjustment tooth groove 13 is provided inside the front end of the telescopic slide rod 3, the positioning motor 12 is rotatably connected to a control shaft near the center of one end of the telescopic sleeve rod 4, the control shaft passes through the telescopic sleeve rod 4 and the height adjustment tooth groove 13 through a limiting slot 20, and the limiting slot 20 is provided inside the lower side of the front end of the telescopic sleeve rod 4, a bevel gear 21 is fixedly connected to the outside of the control shaft near the positioning motor 12, and the bevel gear 21 and the bevel gear 11 is meshed at the lower end, and the control shaft is fixedly connected with a height adjustment gear 22 at one end away from the positioning motor 12, and the height adjustment gear 22 is rotatably connected to the inside of the height adjustment tooth groove 13, and can mesh with the rack set on the right inner wall of the opening of the height adjustment tooth groove 13, and the limit block 23 is clamped inside the limit clamping groove 20, and the rear end of the limit block 23 is slidably connected to the inside of the height adjustment tooth groove 13, the limit block 23 is located between the bevel gear 21 and the height adjustment gear 22, and is located inside the front end of the helical gear 11, and the control shaft is rotatably connected to the inside of the limit block 23, the front end outer wall of the limit block 23 is arranged in an arc shape, and can fit tightly with the front end inner wall of the helical gear 11, and the control is clamped with the limit block 23 through a limit ring 24, and the limit ring 24 is rotatably connected to the inside of the limit block 23, and is fixedly connected to Outside the control shaft, the lower end of the positioning motor 12 is fixedly connected to a hydraulic telescopic rod 25, and a hydraulic seat 26 is sleeved on the rear end of the hydraulic telescopic rod 25, and the hydraulic telescopic rod 25 is slidably connected to the front end of the hydraulic seat 26. The hydraulic seat 26 is fixedly connected to the lower side of the front end of the telescopic sleeve rod 4 and is located at the lower side of the front end of the limit slot 20. The rear sides of the left and right ends of the hydraulic seat 26 are connected to a hydraulic press 27 through a connecting pipe, and the hydraulic press 27 is fixedly connected to the lower side of the rear end of the telescopic sleeve rod 4. After reaching the serving position, hydraulic oil is provided inside the rear side of the hydraulic seat 26 and inside the hydraulic press 27, and is connected through a connecting pipe. The control system issues a command to the hydraulic press 27 to let the hydraulic press 27 inject oil into the hydraulic seat 26 to control the positioning motor 12 and the hydraulic telescopic rod 2 5 slides forward. Since the height-adjusting tooth groove 13 is set in a "convex" shape, the height-adjusting gear 22 will be stuck in the narrow opening of the height-adjusting tooth groove 13 when sliding forward, and mesh with the gear rail at the opening of the height-adjusting tooth groove 13, so that the height-adjusting tooth groove 13 is meshed with the height-adjusting gear 22. At the same time, the helical gear 11 is separated from the bevel gear 21, and the limit block 23 is tightly fitted with the inner wall of the helical gear 11 through the pulling of the control shaft and the limit ring 24. At this time, the control system sends a command to the positioning motor 12, and the positioning motor 12 drives the height-adjusting gear 22 to rotate through the control shaft. The height-adjusting gear 22 drives the telescopic sleeve rod 4 to slide up and down on the upper end of the telescopic slide rod 3 through the meshing with the height-adjusting tooth groove 13, thereby adjusting the height of the adjusting base 5 and the serving machine 6, and then adjusting the serving height.

[0042] Preferably, in the process of adjusting the serving height, the bevel gear 11 can be tightly fitted to limit the position through the limit block 23, so that the adjustment base 5 and the serving machine 6 connected to the bevel gear 11 through multiple connecting rods 10 will not rotate between the telescopic sleeve 4, ensuring that the positions of the adjustment base 5 and the serving machine 6 remain stationary before the orientations of the adjustment base 5 and the serving machine 6 are adjusted.

[0043] Preferably, after adjusting the serve height, the control system issues a command to the hydraulic press 27 again, allowing the hydraulic press 27 to pump oil from the inside of the hydraulic seat 26, controlling the position adjustment motor 12 and the hydraulic telescopic rod 25 to slide backward, separating the height adjustment gear 22 from the rack at the opening of the height adjustment tooth groove 13, and sliding backward into the wider rear side of the height adjustment tooth groove 13 for idling, while the bevel gear 11 meshes with the bevel gear 21, and the limit block 23 separates from the inner wall of the bevel gear 11 to release the restriction on the position of the bevel gear 11. At this time, the control system The positioning motor 12 sends out a command, and the positioning motor 12 drives the bevel gear 21 to rotate. The bevel gear 21 drives the bevel gear 11 to rotate by meshing with the bevel gear 11. The bevel gear 11 drives the adjustment base 5 and the serving machine 6 to rotate through multiple connecting rods 10, thereby controlling the serving direction. After adjusting the serving direction, the control system sends a command to the elevation motor 9, allowing the elevation motor 9 to control the elevation angle of the serving machine 6, thereby controlling the serving elevation angle. By controlling the serving direction and the serving elevation angle, the serving angle can be controlled.

[0044] Preferably, an elevation motor 9 is fixedly connected to the left end of the adjustment base 5, and the elevation motor 9 is rotatably connected to the serving machine 6 via a rotating shaft. After adjusting the serving position, serving height and serving angle, the control system sends instructions to the serving machine 6, allowing the serving machine 6 to control the serving force, serving frequency and serving frequency according to the edited training content. During the training process, the recording system records the training movements of the trainees through the camera of the auxiliary tablet computer 8, and can play back the recorded training movements through the screen of the auxiliary tablet computer 8, so as to find out the deficiencies in the training and correct them.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A visual badminton auxiliary training device, characterized in that: The invention comprises a power base (1), wherein the lower end of the power base (1) is provided with four groups of movable pairs of wheels (2), a telescopic slide rod (3) is fixedly connected at the center of the upper end of the power base (1), a telescopic sleeve rod (4) is sleeved on the upper end of the telescopic slide rod (3), and the telescopic slide rod (3) is slidably connected to the lower end of the telescopic sleeve rod (4), an adjustment base (5) is rotatably connected to the upper end of the telescopic sleeve rod (4), a ball serving machine (6) is rotatably connected to the upper end of the adjustment base (5), and a ball serving port is provided inside the front end of the ball serving machine (6), a badminton tube (7) is connected to the rear side of the upper end of the ball serving machine (6), an auxiliary tablet computer (8) is fixedly connected to the front side of the lower end of the adjustment base (5), and a camera is provided on the upper side of the front end of the auxiliary tablet computer (8).

2. A visual badminton auxiliary training device according to claim 1, characterized in that: The left end of the adjustment base (5) is fixedly connected to an elevation motor (9), and the elevation motor (9) is rotatably connected to the ball machine (6) via a rotating shaft. The outer side of the lower end of the adjustment base (5) is fixedly connected to a plurality of connecting rods (10), and the plurality of connecting rods (10) are rotatably connected to the outside of the telescopic sleeve rod (4).

3. A visual badminton auxiliary training device according to claim 2, characterized in that: The lower ends of the plurality of connecting rods (10) are fixedly connected to a bevel gear (11); a positioning motor (12) is provided at the lower side of the front end of the telescopic sleeve rod (4); and the positioning motor (12) is located at the front side of the lower end of the bevel gear (11); and a convex height adjustment tooth groove (13) is provided inside the front end of the telescopic slide rod (3).

4. A visual badminton auxiliary training device according to claim 1, characterized in that: The lower end of the power base (1) is fixedly connected to two cross-arranged limit sliding frames (14), and the two limit sliding frames (14) are distributed up and down. Two adjustment gear rods (15) are slidably connected inside the two limit sliding frames (14), and the two adjustment gear rods (15) located inside the same limit sliding frame (14) are respectively located on both sides of the limit sliding frame (14).

5. A visual badminton auxiliary training device according to claim 4, characterized in that: A steering motor (16) is arranged inside the lower end of the positioning gear rod (15) at a side away from the power base (1); the lower end of the steering motor (16) is rotatably connected to a power motor (17) via a rotating shaft; each set of the movable pair of wheels (2) is rotatably connected to the front and rear ends of the power motor (17); a telescopic motor (18) is arranged inside the center of the lower end of the power base (1); the lower end of the telescopic motor (18) is rotatably connected to a telescopic gear (19); and the telescopic gear (19) is located between the four positioning gear rods (15) and meshes with the four positioning gear rods (15).

6. The visual badminton auxiliary training device according to claim 3, characterized in that: The position adjustment motor (12) is rotatably connected to a control shaft at the center of one end of the telescopic sleeve rod (4); the control shaft passes through the telescopic sleeve rod (4) and the height adjustment tooth groove (13) through a limit slot (20); the limit slot (20) is arranged inside the lower side of the front end of the telescopic sleeve rod (4); the control shaft is fixedly connected to a bevel gear (21) on the outside of a side of the control shaft close to the position adjustment motor (12); and the bevel gear (21) is meshed with the lower end of the helical gear (11).

7. A visual badminton auxiliary training device according to claim 6, characterized in that: The control shaft is fixedly connected to an end away from the position adjustment motor (12) with a height adjustment gear (22), and the height adjustment gear (22) is rotatably connected to the inside of the height adjustment tooth groove (13) and can mesh with a gear rail arranged on the right inner wall of the opening of the height adjustment tooth groove (13). A limit block (23) is clamped inside the limit slot (20), and the rear end of the limit block (23) is slidably connected to the inside of the height adjustment tooth groove (13). The limit block (23) is located between the bevel gear (21) and the height adjustment gear (22) and is located inside the front end of the helical gear (11), and the control shaft is rotatably connected to the inside of the limit block (23).

8. The visual badminton auxiliary training device according to claim 7, characterized in that: The front end outer wall of the limit block (23) is arranged in an arc shape and can be closely fitted with the front end inner wall of the bevel gear (11); the control is connected to the limit block (23) through a limit ring (24); the limit ring (24) is rotatably connected to the inside of the limit block (23) and fixedly connected to the outside of the control shaft.

9. A visual badminton auxiliary training device according to claim 8, characterized in that: The lower end of the positioning motor (12) is fixedly connected to a hydraulic telescopic rod (25), the rear end of the hydraulic telescopic rod (25) is sleeved with a hydraulic seat (26), and the hydraulic telescopic rod (25) is slidably connected to the front end of the hydraulic seat (26), the hydraulic seat (26) is fixedly connected to the lower side of the front end of the telescopic sleeve rod (4), and is located at the lower side of the front end of the limiting slot (20), the rear sides of the left and right ends of the hydraulic seat (26) are connected to a hydraulic press (27) through a connecting pipe, and the hydraulic press (27) is fixedly connected to the lower side of the rear end of the telescopic sleeve rod (4).

10. A visual badminton learning system according to any one of claims 1 to 9, characterized in that: ① The auxiliary tablet computer (8) has a built-in control system, simulation system, positioning system and recording system; ② Input the badminton court information into the positioning system and locate the training device through the positioning system; ③ Editing the training content through the auxiliary tablet computer (8), and simulating the edited training content through the simulation system; ④ The control system issues instructions to the ball serving machine (6), the elevation motor (9), the positioning motor (12), the steering motor (16), the power motor (17), the telescopic motor (18) and the hydraulic press (27), thereby controlling the training device to start training; ⑤ Record the trainees’ training movements through the recording system, and play them back and compare them.

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