Intelligent discriminant multidirectional pitching machine for badminton training

Abstract

The invention discloses an intelligent discriminant multidirectional pitching machine for badminton training, which comprises an upper supporting plate, a plurality of supporting columns are fixedly connected to the outer side of the lower end of the upper supporting plate, a lower supporting plate is fixedly connected to the lower ends of the supporting columns, four moving wheel sets are arranged at the lower end of the lower supporting plate, and each moving wheel set is composed of two rollers. The intelligent ball serving device has the intelligent judgment function, the ball serving position, height, angle and strength can be automatically formulated and adjusted according to an input training field model, an athlete instruction and analysis on ball hitting of an athlete, the training field model is input, the training field model is input, the athlete instruction is input, and the ball hitting process of the athlete is analyzed, so that the intelligent ball serving device is convenient to use and high in practicability. Diversified and targeted training is provided, the moving track and speed of badminton hitting by an athlete can be recorded and analyzed through the high-speed camera and the speed measuring radar, so that weak points of the athlete are accurately found out, the training content is automatically formulated according to the weak points, and the training effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field related to badminton training, and particularly relates to an intelligent discrimination type multi-directional serving machine for badminton training. Background Art

[0002] In the field of badminton training, traditional serving machines have many limitations.

[0003] Many ball-serving machines lack intelligent recognition capabilities and are unable to automatically determine and adjust the position, height, angle, and strength of the serve based on the conditions of the training venue and the actual performance of the athletes. The training methods are relatively simple and fixed.

[0004] Existing ball-serving machines are not capable of analyzing athletes' shots, making it difficult to accurately identify athletes' weaknesses and provide targeted training content accordingly.

[0005] In terms of movement and positioning, traditional ball machines lack flexibility and stability, are unable to reach the designated position quickly and accurately, and are difficult to maintain their own stability when adjusting their position, making them prone to problems such as rollover.

[0006] The control of serve height and angle is not precise enough, making it difficult to realistically simulate various complex serve scenarios, which limits the diversity and effectiveness of training.

[0007] Moreover, the control mechanisms of the various components of existing ball machines are not accurate and efficient enough, which affects the performance and user experience of the ball machines.

[0008] In summary, in order to meet the diversified and professional needs of badminton training and improve the training effect and quality, there is an urgent need for an innovative intelligent discrimination multi-directional badminton training serving machine to overcome the shortcomings of existing serving machines. Summary of the Invention

[0009] The purpose of the present invention is to provide an intelligent discrimination multi-directional badminton serving machine for training, so as to solve the problem in the above background technology that the traditional serving machine has insufficient precision in controlling the serving height and angle, and is difficult to realistically simulate various complex serving scenarios.

[0010] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an intelligent discrimination type multi-directional badminton training serving machine, comprising an upper support plate, a plurality of support columns fixedly connected to the outer side of the lower end of the upper support plate, the lower ends of the plurality of support columns fixedly connected to the lower support plate, four groups of movable wheel groups are provided at the lower end of the lower support plate, and each group of movable wheel groups consists of two rollers, a supporting vertical rod is provided at the center of the upper end of the upper support plate, the upper end of the supporting vertical rod is fixedly connected to a connecting swivel seat, the upper end of the connecting swivel seat is internally rotatably connected to a serving mechanism, and a serving port is provided at the front end of the serving mechanism, the left end of the serving mechanism is rotatably connected to an angle adjustment motor, and the angle adjustment motor is fixedly connected to the outer wall of the left end of the connecting swivel seat, the upper end of the serving mechanism is connected to a ball barrel, and an intelligent host is provided on the front side of the lower end of the connecting swivel seat.

[0011] Preferably, a high-speed camera is provided at the front center of the smart host, and speed measuring radars are provided inside the four corners of the front end of the smart host. An AI processing module, a positioning module, a control module and a transmission module are provided inside the smart host.

[0012] Preferably, four limiting slide grooves are opened inside the upper end of the upper support plate, and the four limiting slide grooves are distributed radially. The centers of the four limiting slide grooves are connected to a motor shrinkage hole, and the motor shrinkage hole passes through the center of the upper end of the upper support plate from top to bottom.

[0013] Preferably, the four limiting slide grooves are all clamped with limiting sliders and are slidably connected to the four limiting sliders. The upper ends of the four limiting sliders are all rotatably connected to support side rods, and the four support side rods are respectively rotatably connected to the outer side of the lower end of the supporting vertical rod.

[0014] Preferably, a limit rotation groove is provided inside the lower end of the four supporting side rods, and a limit connecting rod is rotatably connected inside the upper side of the four limit rotation grooves. A limit connecting ring is provided at the other end of the four limit connecting rods, and is rotatably connected inside the front and rear ends and the left and right ends of the limit connecting ring.

[0015] Preferably, the lower end of the limit connecting ring is fixedly connected to a height adjustment motor, and the limit connecting ring and the height adjustment motor are both located directly below the supporting vertical rod. The upper end of the height adjustment motor is rotatably connected to a height adjustment screw. A height adjustment screw hole is opened inside the center of the lower end of the supporting vertical rod, and the height adjustment screw is threadedly connected inside the height adjustment screw hole.

[0016] Preferably, a hydraulic press passes through the center of the lower end of the lower support plate, and a connecting chamber is connected to the center of the lower end of the hydraulic press. Telescopic slide tubes are connected to the front and rear ends and the left and right ends of the connecting chamber, and the connecting chamber and the four telescopic slide tubes are all located at the lower end of the lower support plate, and the four telescopic slide tubes are slidably connected to the inside of the end away from the connecting chamber with a telescopic slide rod.

[0017] Preferably, the telescopic slide rod is fixedly connected to a steering motor at one end away from the telescopic slide tube, the lower end of the steering motor is rotatably connected to a drive motor, and the two rollers of each set of moving wheel groups are respectively rotatably connected to the left and right ends of the drive motor and are located on the lower side of the telescopic slide rod and the steering motor.

[0018] Preferably, a hydraulic valve head is slidably connected inside the hydraulic press, and a valve head limiting tube with an opening downward is fixedly connected to the center of the upper end of the hydraulic valve head, and the lower end opening of the valve head limiting tube is located at the center of the lower end of the hydraulic valve head. A limiting slot is provided at the center of the upper end of the hydraulic press, and the valve head limiting tube is clamped inside the limiting slot and slidably connected to the limiting slot.

[0019] Preferably, the lower end opening of the valve head limiting tube is fixedly connected to a positioning nut through a plurality of connecting columns, and a gap is left between the positioning nut and the inside of the valve head limiting tube. The internal thread of the positioning nut is connected to an adjusting screw, and the adjusting screw passes through the inside of the valve head limiting tube. The lower end of the adjusting screw is rotatably connected to a positioning motor, and the positioning motor is fixedly connected to the inner wall of the lower end of the connecting chamber through a fixing seat.

[0020] Compared with the prior art, the present invention provides an intelligent discrimination multi-directional badminton training serving machine, which has the following beneficial effects:

[0021] 1. The present invention has an intelligent discrimination function, which can automatically formulate and adjust the position, height, angle and strength of the serve according to the input training venue model, athlete instructions and analysis of the athlete's shot, providing diversified and targeted training.

[0022] 2. The present invention can record and analyze the movement trajectory and speed of the badminton returned by the athlete through a high-speed camera and a speed radar, thereby accurately identifying the athlete's weaknesses and automatically formulating training content accordingly to improve the training effect.

[0023] 3. The present invention has flexible movement and positioning capabilities. It can quickly move to a designated position on the training ground through the moving wheel group, and the expansion degree of the moving wheel group can be adjusted according to the rising height of the supporting vertical rod to ensure stable movement and prevent rollover.

[0024] 4. The present invention can accurately control the height and angle of the serve, and simulate serves at different positions, heights and angles by moving the supporting vertical rod up and down and rotating the serving mechanism, thereby increasing the diversity and difficulty of training.

[0025] 5. The control mechanisms of the various components of the present invention are precise and efficient. For example, the deployment of the mobile wheel set is controlled by the positioning motor and the hydraulic system, and the lifting and lowering of the supporting vertical rod is controlled by the height adjustment motor and the screw structure, thereby achieving precise and stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the ball serving machine of the present invention.

[0027] Figure 2 It is a schematic diagram of the explosion of the ball machine of the present invention.

[0028] Figure 3 It is a schematic diagram of the upper support plate connection structure of the present invention.

[0029] Figure 4 It is a schematic diagram of the support vertical rod connection structure of the present invention.

[0030] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of point A in the middle.

[0031] Figure 6 It is a schematic diagram of the connection structure of the hydraulic press of the present invention.

[0032] Figure 7 It is a schematic diagram of the connecting structure of the communicating chambers of the present invention.

[0033] Figure 8 It is a schematic diagram of the valve head limit pipe connection structure of the present invention.

[0034] Figure 9 For the present invention Figure 8 Enlarged schematic diagram of point B in the middle.

[0035] In the figure: 1. Upper support plate; 2. Support column; 3. Lower support plate; 4. Moving wheel group; 5. Support vertical rod; 6. Connecting swivel seat; 7. Ball launching mechanism; 8. Angle adjustment motor; 9. Ball barrel; 10. Intelligent host; 11. Limit slide; 12. Limit slider; 13. Support side rod; 14. Limit rotating groove; 15. Limit connecting rod; 16. Limit connecting ring; 17. Height adjustment motor; 18. Height adjustment screw; 19. Height adjustment screw hole; 20. Hydraulic press; 21. Connecting chamber; 22. Telescopic slide; 23. Telescopic slide; 24. Steering motor; 25. Drive motor; 26. Hydraulic valve head; 27. Valve head limit tube; 28. Limit slot; 29. ​​Adjustment nut; 30. Adjustment screw; 31. Adjustment motor. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0037] The present invention provides Figures 1-9The shown embodiment is an intelligent discrimination type multi-directional badminton training serving machine, comprising an upper supporting plate 1, a plurality of supporting columns 2 are fixedly connected to the outer side of the lower end of the upper supporting plate 1, a plurality of supporting columns 2 are fixedly connected to the lower supporting plate 3 at the lower end of the plurality of supporting columns 2, four groups of movable wheel groups 4 are provided at the lower end of the lower supporting plate 3, and each group of movable wheel groups 4 is composed of two rollers, a supporting vertical rod 5 is provided at the center of the upper end of the upper supporting plate 1, the upper end of the supporting vertical rod 5 is fixedly connected to a connecting swivel seat 6, the upper end of the connecting swivel seat 6 is internally rotatably connected to a serving mechanism 7, and a serving port is provided at the front end of the serving mechanism 7, the left end of the serving mechanism 7 is rotatably connected to an angle adjustment motor 8, and the angle adjustment motor 8 is fixedly connected to the outer wall of the left end of the connecting swivel seat 6, The upper end of the ball mechanism 7 is connected to the ball cylinder 9, and the front side of the lower end of the connecting seat 6 is provided with an intelligent host 10. A high-speed camera is provided at the front center of the intelligent host 10, and speed radars are provided inside the four corners of the front end of the intelligent host 10. The intelligent host 10 is internally provided with an AI processing module, a positioning module, a control module and a transmission module. During training, the training field model is input into the AI ​​processing module. The AI ​​processing module determines the position of the serving machine through the positioning module. The athlete sends instructions to the serving machine through the transmission module, so that the serving machine can serve the ball at a specific height, specific angle and specific force at a specific position according to the instructions, thereby training the athlete.

[0038] Preferably, the serving machine can record the moving trajectory of the badminton hit back by the athlete through the high-speed camera of the intelligent host 10, and can synchronously record the moving speed of the badminton at various positions through the speed radar, and finally transmit the moving trajectory and moving speed to the AI ​​module, analyze the athlete's weaknesses through the AI ​​module, and automatically formulate training content according to the athlete's weaknesses, thereby improving the athlete's skills.

[0039] Preferably, the ball serving machine moves quickly on the training ground through four sets of moving wheel groups 4 to reach the designated position, controls the serving height by the up and down movement of the supporting vertical rod 5, controls the serving angle by the rotation of the serving mechanism 7, and controls the rotation angle of the serving mechanism 7 by the angle adjustment motor 8 through the instructions issued by the AI ​​module, and controls the serving force by the serving motor inside the serving mechanism 7, so that the ball serving machine can simulate serves of different heights, angles and forces at different positions, ensuring the diversity of training content.

[0040] Preferably, a hydraulic press 20 is passed through the center of the lower end of the lower support plate 3, and a connecting chamber 21 is connected to the center of the lower end of the hydraulic press 20. The front and rear ends and the left and right ends of the connecting chamber 21 are connected with telescopic slide tubes 22, and the connecting chamber 21 and the four telescopic slide tubes 22 are all located at the lower end of the lower support plate 3. The four telescopic slide tubes 22 are slidably connected to the telescopic slide rod 23 at one end away from the connecting chamber 21. The telescopic slide rod 23 is fixedly connected to the steering motor 24 at one end away from the telescopic slide tube 22. The lower end of the steering motor 24 is rotatably connected to the drive motor 25, and the two ends of each set of moving wheels 4 are connected. The rollers are rotatably connected to the left and right ends of the driving motor 25 and are located on the lower side of the telescopic slide bar 23 and the steering motor 24. During the movement of the ball machine, the four groups of mobile wheel groups 4 can be driven by the driving motor 25 and the rolling direction can be controlled by the steering motor 24, so as to quickly reach the designated position for serving. The four groups of mobile wheel groups 4 can be expanded to different degrees at the lower end of the lower support plate 3. The AI ​​module can automatically adjust the expansion degree of the four groups of mobile wheel groups 4 according to the rising height of the supporting vertical rod 5, so as to ensure the stable movement of the ball machine and prevent it from tipping over.

[0041] Preferably, a hydraulic valve head 26 is slidably connected to the inside of the hydraulic press 20, and a valve head limiting tube 27 with an opening downward is fixedly connected to the center of the upper end of the hydraulic valve head 26, and the lower end opening of the valve head limiting tube 27 is located at the center of the lower end of the hydraulic valve head 26. A limiting slot 28 is provided at the center of the upper end of the hydraulic press 20, and the valve head limiting tube 27 is clamped in the limiting slot 28 and slidably connected to the limiting slot 28. An adjusting nut 29 is fixedly connected to the inside of the lower end opening of the valve head limiting tube 27 through a plurality of connecting columns, and a gap is left between the adjusting nut 29 and the inside of the valve head limiting tube 27. An adjusting screw 30 is threadedly connected to the inside of the adjusting nut 29, and the adjusting screw 30 passes through the inside of the valve head limiting tube 27. The lower end of the adjusting screw 30 is rotatably connected to an adjusting motor 31, and the adjusting motor 31 is rotated by The fixed seat is fixedly connected to the inner wall of the lower end of the connecting chamber 21. In the process of controlling the expansion of the four sets of movable wheel groups 4, the AI ​​module controls the positioning motor 31 to rotate forward or reverse according to the rising height of the supporting vertical rod 5. The positioning motor 31 drives the positioning screw 30 to rotate, and the hydraulic valve head 26 and the valve head limiting tube 27 can move up and down through the threaded connection between the positioning nut 29 and the positioning screw 30. Since hydraulic oil is provided inside the hydraulic press 20 at the lower end of the hydraulic valve head 26 and inside the connecting chamber 21 and the telescopic slide 22, the up and down movement of the hydraulic valve head 26 can pull and push the hydraulic oil inside the telescopic slide 22, so that the telescopic slide 23 can be stretched and retracted inside the telescopic slide 22 under the pulling and pushing of the hydraulic oil, thereby controlling the opening degree of the four sets of movable wheel groups 4.

[0042] Preferably, four limiting slides 11 are provided inside the upper end of the upper support plate 1, and the four limiting slides 11 are distributed in a radial shape. The centers of the four limiting slides 11 are connected to the motor contraction hole, and the motor contraction hole passes through the center of the upper end of the upper support plate 1 up and down. The four limiting slides 11 are all clamped with the limiting sliders 12 and are slidably connected to the four limiting sliders 12. The upper ends of the four limiting sliders 12 are rotatably connected to the supporting side rods 13, and the four supporting side rods 13 are respectively rotatably connected to the outer side of the lower end of the supporting vertical rod 5. The lower ends of the four supporting side rods 13 are provided with limiting rotation grooves 14, and the upper sides of the four limiting rotation grooves 14 are rotatably connected to the limiting connecting rods 15. The other ends of the four limiting connecting rods 15 are provided with limiting connecting rings 16, and are rotatably connected to the limiting connecting rods 15. Inside the front and rear ends and left and right ends of the connecting ring 16, the lower end of the limit connecting ring 16 is fixedly connected to the height-adjusting motor 17, and the limit connecting ring 16 and the height-adjusting motor 17 are both located directly below the supporting vertical rod 5. The upper end of the height-adjusting motor 17 is rotatably connected to the height-adjusting screw 18, and a height-adjusting screw hole 19 is opened inside the center of the lower end of the supporting vertical rod 5, and the height-adjusting screw 18 is threadedly connected inside the height-adjusting screw hole 19. In the process of controlling the up and down movement of the supporting vertical rod 5, the AI ​​module can control the height-adjusting motor 17 to rotate forward or reverse according to instructions or automatically customized content. The height-adjusting motor 17 drives the height-adjusting screw 18 to rotate, and controls the distance between the supporting vertical rod 5 and the height-adjusting motor 17 through the threaded connection between the height-adjusting screw 18 and the height-adjusting screw hole 19, thereby controlling the height of the up and down movement of the supporting vertical rod 5.

[0043] Preferably, when the support vertical rod 5 and the height-adjusting motor 17 move away from each other, the height-adjusting motor 17 can pull the four limit connecting rods 15 downward through the limit connecting ring 16, and pull the lower ends of the four support side rods 13 inward through the four limit connecting rods 15, and the four support side rods 13 drive the four limit sliding blocks 12 to slide inward inside the four limit sliding grooves 11. At this time, since the upper ends of the four support side rods 13 are connected to the lower ends of the support vertical rods 5 and are located between the upper support plate 1 and the support vertical rod 5, at the same time, through the four limit sliding grooves 11 and the four limit The positioning slider 12 limits the position between the lower ends of the four supporting side rods 13 and the upper supporting plate 1, and limits the position between the inner middle part of the four supporting side rods 13 and the height adjustment motor 17 through four limiting connecting rods 15 and limiting connecting rings 16. The height adjustment motor 17 is positioned directly below the support vertical rod 5, and is limited in position with the support vertical rod 5 through the height adjustment screw 18. Therefore, the upper ends of the four supporting side rods 13 can move upward at equal distances, and drive the support vertical rod 5 to move upward, so that the support vertical rod 5 can move upward through the contraction of the lower ends of the four supporting side rods 13.

[0044] Preferably, when the supporting vertical rod 5 and the height-adjusting motor 17 approach each other, the height-adjusting motor 17 can push the four limiting connecting rods 15 downward through the limiting connecting ring 16, and push the lower ends of the four supporting side rods 13 to open outward through the four limiting connecting rods 15. The four supporting side rods 13 drive the four limiting sliders 12 to slide outward inside the four limiting slide grooves 11, so that the upper ends of the four supporting side rods 13 can move downward at equal distances, and drive the supporting vertical rod 5 to move downward, so that the supporting vertical rod 5 can move downward through the opening of the lower ends of the four supporting side rods 13.

[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, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or 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 scope of protection of the present invention.

Claims

1. An intelligent discrimination type multi-directional badminton training serving machine, characterized in that: The invention comprises an upper support plate (1), wherein the outer side of the lower end of the upper support plate (1) is fixedly connected to a plurality of support columns (2), the lower ends of the plurality of support columns (2) are fixedly connected to a lower support plate (3), the lower end of the lower support plate (3) is provided with four groups of movable wheel groups (4), and each group of movable wheel groups (4) consists of two rollers, a support vertical rod (5) is provided at the center of the upper end of the upper support plate (1), the upper end of the support vertical rod (5) is fixedly connected to a connecting rotating seat (6), the upper end of the connecting rotating seat (6) is internally rotatably connected to a ball-serving mechanism (7), and a ball-serving port is provided at the front end of the ball-serving mechanism (7), the left end of the ball-serving mechanism (7) is rotatably connected to an angle-adjusting motor (8), and the angle-adjusting motor (8) is fixedly connected to the outer wall of the left end of the connecting rotating seat (6), the upper end of the ball-serving mechanism (7) is connected to a ball barrel (9), and the front side of the lower end of the connecting rotating seat (6) is provided with an intelligent host (10).

2. The intelligent discrimination multi-directional badminton training serving machine according to claim 1, characterized in that: A high-speed camera is provided at the front center of the intelligent host (10), and speed measuring radars are provided inside the four corners of the front end of the intelligent host (10). An AI processing module, a positioning module, a control module and a transmission module are provided inside the intelligent host (10).

3. The intelligent discrimination multi-directional badminton training serving machine according to claim 2, characterized in that: Four limiting slide grooves (11) are provided inside the upper end of the upper support plate (1), and the four limiting slide grooves (11) are distributed in a radial shape. The centers of the four limiting slide grooves (11) are connected to a motor shrinkage hole, and the motor shrinkage hole passes through the center of the upper end of the upper support plate (1) from top to bottom.

4. The intelligent discrimination multi-directional badminton training serving machine according to claim 3, characterized in that: The four limiting slide grooves (11) are all clamped with limiting sliders (12) inside and are slidably connected to the four limiting sliders (12). The upper ends of the four limiting sliders (12) are all rotatably connected to support side rods (13), and the four support side rods (13) are respectively rotatably connected to the outer side of the lower end of the support vertical rod (5).

5. The intelligent discrimination multi-directional badminton training serving machine according to claim 4, characterized in that: The lower ends of the four supporting side rods (13) are each provided with a limit rotation groove (14), the upper sides of the four limit rotation grooves (14) are each rotatably connected to a limit connecting rod (15), and the other ends of the four limit connecting rods (15) are provided with a limit connecting ring (16) and are rotatably connected to the front and rear ends and the left and right ends of the limit connecting ring (16).

6. The intelligent discrimination multi-directional badminton training serving machine according to claim 5, characterized in that: The lower end of the position-limiting connecting ring (16) is fixedly connected to a height-adjusting motor (17), and the position-limiting connecting ring (16) and the height-adjusting motor (17) are both located directly below the supporting vertical rod (5). The upper end of the height-adjusting motor (17) is rotatably connected to a height-adjusting screw rod (18). A height-adjusting screw hole (19) is provided at the center of the lower end of the supporting vertical rod (5), and the height-adjusting screw rod (18) is threadedly connected to the interior of the height-adjusting screw hole (19).

7. The intelligent discrimination multi-directional badminton training serving machine according to claim 1, characterized in that: A hydraulic press (20) is passed through the center of the lower end of the lower support plate (3), and a communication chamber (21) is connected to the center of the lower end of the hydraulic press (20). The front and rear ends and the left and right ends of the communication chamber (21) are all connected with telescopic slide tubes (22), and the communication chamber (21) and the four telescopic slide tubes (22) are all located at the lower end of the lower support plate (3). The four telescopic slide tubes (22) are all slidably connected to the telescopic slide rods (23) at one end away from the communication chamber (21).

8. The intelligent discrimination multi-directional badminton training serving machine according to claim 7, characterized in that: The telescopic slide rod (23) is fixedly connected to a steering motor (24) at one end away from the telescopic slide tube (22); the lower end of the steering motor (24) is rotatably connected to a drive motor (25); and the two rollers of each group of moving wheel groups (4) are rotatably connected to the left and right ends of the drive motor (25) and are located below the telescopic slide rod (23) and the steering motor (24).

9. The intelligent discrimination multi-directional badminton training serving machine according to claim 8, characterized in that: A hydraulic valve head (26) is slidably connected inside the hydraulic machine (20), a valve head limiting tube (27) with a downward opening is fixedly connected at the center of the upper end of the hydraulic valve head (26), and the lower end opening of the valve head limiting tube (27) is located at the center of the lower end of the hydraulic valve head (26), a limiting slot (28) is provided at the center of the upper end of the hydraulic machine (20), and the valve head limiting tube (27) is clamped inside the limiting slot (28) and is slidably connected to the limiting slot (28).

10. The intelligent discrimination multi-directional badminton training serving machine according to claim 9, characterized in that: The lower end opening of the valve head limiting tube (27) is fixedly connected to a positioning nut (29) via a plurality of connecting columns, and a gap is left between the positioning nut (29) and the inside of the valve head limiting tube (27). The positioning nut (29) is internally threadedly connected to a positioning screw (30), and the positioning screw (30) passes through the inside of the valve head limiting tube (27). The lower end of the positioning screw (30) is rotatably connected to a positioning motor (31), and the positioning motor (31) is fixedly connected to the inner wall of the lower end of the communicating chamber (21) via a fixing seat.

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