Robot for assisting tennis training

Abstract

The invention relates to the technical field of tennis training equipment, in particular to a robot for assisting tennis training, and aims to solve the problems that during tennis training in the prior art, a beaten tennis ball cannot be effectively recycled, and a tennis training robot is traceable in launching track and can follow the track; in order to solve the problem that training requirements of trainees cannot be effectively met, the invention provides the following scheme that the device comprises a main body; the collecting frame is arranged on the main body, a ball containing frame is arranged at the top end of the main body, a ball serving opening is formed in the main body, a ball pipe is arranged in the main body, and a special-shaped frame is arranged on the collecting frame; according to the tennis ball recycling device, beaten tennis balls can be recycled through the ball net, follow-up tennis ball recycling operation is avoided, the recycling device can be folded, storage is convenient, meanwhile, the tennis ball launching track can be randomly adjusted in real time, the launching track is more indefinite, and the tennis ball recycling device is convenient to use and high in practicability. And the reactivity of a tennis trainer is further trained.

Description

Technical Field

[0001] The present invention relates to the technical field of tennis training equipment, and in particular to a robot for assisting tennis training. Background Art

[0002] At present, the sport of tennis is greatly affected by companions and requires two-person training with a large exercise intensity. Therefore, high requirements are imposed on the training partners. They need to have certain tennis skills and good physical fitness so that they can continuously feed the balls. All these factors increase the cost of tennis training. It can be seen that the technical condition of the training partners, the quality and difficulty of ball delivery, etc. all restrict the practice of tennis, especially affecting the enthusiasm of the practitioners. For this reason, tennis ball machines have emerged to assist the practitioners in hitting the balls to meet the training requirements;

[0003] The patent document with the publication number CN214232699U discloses a tennis training aid, including a serving end, an intermediate tube, and a feeding end. A driving motor is fixedly connected to the serving end by bolts. A dial rod is rotatably connected below the vertical center line position of the intermediate tube, and a connecting rod on the same straight line as the dial rod is fixedly connected to the top rotating shaft of the dial rod. A third gear disk rotatably connected to the intermediate tube is arranged on one side of the connecting rod, and a pin shaft slidably embedded in the inner side of the connecting rod is fixedly connected to the vertical end surface of the third gear disk. A transmission connection is established between the third gear disk and the driving motor. When the driving motor drives the third gear disk to rotate and the pin shaft on the third gear disk slides up and down inside the connecting rod, the connecting rod drives the dial rod located inside the serving end to rotate left and right, thereby realizing the left and right hitting effects on the tennis balls falling from above, pushing the tennis balls to different positions of the serving end, and obtaining a larger range of serving positions.

[0004] The patent document with the publication number of CN117695603A discloses a tennis training robot and a training method, comprising a housing and a driving wheel installed at the bottom of the housing, the upper part of the housing is a goal area, the lower part of the housing is a serving area, the goal area has a goal hole, a rotating disc, a track and a group of serving wheels are arranged in the serving area, a rotating disc is arranged below the goal hole, a track is arranged below the rotating disc, a group of serving wheels are arranged at the track, a group of serving wheels includes an upper serving wheel and a lower serving wheel, and a serving hole is opened on the housing in the ball outlet direction of the upper serving wheel and the lower serving wheel. The present invention discloses a training method for a tennis training robot, selecting different motion modes adapted to the athlete's own level on a mobile phone APP; according to the APP setting mode, the motion position serving and simulated return are performed, and the gyroscope and the Hall sensor provide real-time feedback signals to keep the motion direction stable; according to the trajectory and landing point of the ball returned by the athlete, the corresponding motion position simulated return is performed; the athlete's batting operation data is obtained and handed over to the main controller to judge and identify the player's level, and the corresponding level of simulated battle is realized, thereby realizing intelligent training. In the above two public documents, during tennis training, the tennis balls after hitting cannot be effectively recovered, and the launch trajectory of the tennis training robot is trackable and traceable, which cannot effectively meet the training requirements of the trainers.

[0005] Therefore, we propose a robot for assisting tennis training to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art that, during tennis training, the tennis ball cannot be effectively recovered after being hit, and the launch trajectory of the tennis training robot is trackable and traceable, which cannot effectively meet the training requirements of the trainees, and a robot for assisting tennis training is proposed.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A robot for assisting tennis training, comprising:

[0009] main body;

[0010] A collecting frame is arranged on the main body, a ball loading frame is arranged on the top of the main body, a ball serving port is arranged on the main body, a ball tube is arranged inside the main body, and a special-shaped frame is arranged on the collecting frame;

[0011] Motor 1 is fixedly installed in the main body, and a transmission shaft 1 is fixedly installed on the output shaft of the motor 1, and a bevel gear 1 and a pinion gear are fixedly installed on the transmission shaft 1;

[0012] The second fixing frame is fixedly installed inside the main body. A lower connecting plate is fixedly installed on the second fixing frame. A fixing rod is fixedly installed on the lower connecting plate. An upper connecting plate is fixedly installed on the fixing rod. A shock-absorbing spring is fixedly installed on the fixing rod. A buffer pad is fixedly installed on the shock-absorbing spring. The buffer pad is in contact with the X-ray tube.

[0013] The recycling mechanism is arranged inside the collection box and is used for recycling the tennis balls after being hit.

[0014] The transmission mechanism is arranged on the first bevel gear and is used for transmitting the kinetic energy of the first motor.

[0015] The left and right trajectory adjustment mechanism is arranged on the second fixing frame and is used for adjusting the launch trajectory left and right.

[0016] The up and down trajectory adjustment mechanism is arranged inside the main body and is used for adjusting the launch trajectory up and down.

[0017] A plurality of sliding grooves are arranged inside the collection box. A plurality of guide plates are arranged inside the collection box. A plurality of sliders are respectively fixedly installed on the plurality of guide plates. The plurality of sliding grooves are respectively slidably connected with the plurality of sliders. And a telescopic support is fixedly installed inside the collection box.

[0018] A first fixing frame is fixedly installed on each of the plurality of guide plates. A first support rod is rotatably installed on each of the plurality of first fixing frames. An adjustment knob is rotatably installed on each of the plurality of first support rods. A second support rod is rotatably installed on each of the plurality of first support rods.

[0019] The recycling mechanism includes a net, which cooperates with the plurality of second support rods and the telescopic support respectively to block and recycle the tennis balls.

[0020] The transmission mechanism includes a second bevel gear, which meshes with the first bevel gear. An external tooth ring is fixedly installed on the second bevel gear. A first sector gear is fixedly installed on the external tooth ring. A plurality of planetary gears are meshed inside the external tooth ring. An internal gear is meshed with the plurality of planetary gears. A second transmission shaft is fixedly installed on the internal gear. A second sector gear is fixedly installed on the second transmission shaft. And the plurality of planetary gears and the internal gear are all rotatably installed on the second bevel gear. The second transmission shaft is rotatably connected with the upper connecting plate.

[0021] The left and right trajectory adjustment mechanism includes a rotating rod, which is rotatably connected with the fixing rod. A special-shaped frame is fixedly installed on the rotating rod. A sector tooth guide rail is arranged on the special-shaped frame, which cooperates with the first sector gear and the second sector gear.

[0022] A fixing plate is fixedly installed inside the main body. A sleeve is rotatably installed on the fixing plate. A first rocker is fixedly installed on the sleeve. A connecting rod is fixedly installed on the first rocker. A second rocker is fixedly installed at one end of the connecting rod. A plurality of driving rods are fixedly installed on the connecting rod. The driving rods are fixedly connected with the X-ray tube.

[0023] The up-and-down trajectory adjusting mechanism includes a large gear, which meshes with a small gear. A connecting handle is fixedly installed on the large gear, and a sleeve rod is rotatably installed on the connecting handle. The sleeve rod is slidably connected to a first rocker, and both the small gear and the large gear are rotatably installed in the main body.

[0024] A connecting plate is fixedly installed on the special-shaped frame, and a telescopic rod is fixedly installed on the connecting plate. The telescopic rod is fixedly connected to the tube.

[0025] A second motor is fixedly installed in the main body. A main gear is fixedly installed on the output shaft of the second motor. A driven gear meshes with the main gear. A first serving wheel and a second serving wheel are respectively fixedly installed on the main gear and the driven gear.

[0026] In the present invention, the beneficial effects of the robot for assisting tennis training are as follows:

[0027] (1) Through the net, the hit tennis ball can be blocked and guided into the ball storage box, avoiding the process of frequently picking up and collecting the balls.

[0028] (2) The deployed net can be folded and stored, reducing its space usage, facilitating the transportation and storage of the device, and saving space.

[0029] (3) Through the reciprocating mechanism, the left and right directions of the tennis ball launching trajectory can be adjusted randomly in real time, changing the tennis ball launching trajectory to make it unpredictable, meeting the training needs of the trainees.

[0030] (4) Through the up-and-down swinging mechanism, the up and down directions of the tennis ball launching trajectory can be adjusted randomly in real time, changing the tennis ball launching trajectory, and further increasing the unpredictable effect on the basis of its left and right directions.

[0031] In the present invention, the hit tennis ball can be recycled through the net, avoiding the subsequent need for tennis ball recycling operations. Moreover, the recycling device can be folded for convenient storage. At the same time, the tennis ball launching trajectory can be adjusted randomly in real time, making the launching trajectory more unpredictable, and further training the reaction ability of tennis trainers. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural diagram of a robot for assisting tennis training proposed by the present invention;

[0033] Figure 2 is a schematic structural diagram of the net of a robot for assisting tennis training proposed by the present invention;

[0034] Figure 3 is a schematic structural diagram of the folded net of a robot for assisting tennis training proposed by the present invention;

[0035] Figure 4 Schematic diagram of the decomposition of a robot collection box for assisting tennis training proposed by the present invention;

[0036] Figure 5 Schematic diagram of the adjustment knob of a robot for assisting tennis training proposed by the present invention;

[0037] Figure 6 Schematic diagram of the internal structure of the main body of a robot for assisting tennis training proposed by the present invention;

[0038] Figure 7 Schematic diagram of the first sector gear of a robot for assisting tennis training proposed by the present invention;

[0039] Figure 8 Schematic diagram of the decomposition of the planetary gear of a robot for assisting tennis training proposed by the present invention;

[0040] Figure 9 Schematic diagram of the sector gear guide rail of a robot for assisting tennis training proposed by the present invention;

[0041] Figure 10 Schematic diagram of the first rocker of a robot for assisting tennis training proposed by the present invention;

[0042] Figure 11 Schematic diagram of the pinion of a robot for assisting tennis training proposed by the present invention;

[0043] Figure 12 Schematic diagram of the telescopic rod of a robot for assisting tennis training proposed by the present invention;

[0044] Figure 13 Schematic diagram of the buffer pad of a robot for assisting tennis training proposed by the present invention;

[0045] Figure 14 Schematic diagram of the second motor of a robot for assisting tennis training proposed by the present invention;

[0046] Figure 15 Schematic diagram of the enlarged planetary gear of a robot for assisting tennis training proposed by the present invention.

[0047] In the figure: 1. Main body; 2. Ball loading frame; 3. Serving port; 4. Collection frame; 5. Guide plate; 6. Ball net; 7. Special-shaped frame; 8. First support rod; 9. Second support rod; 10. Slide groove; 11. Telescopic bracket; 12. Slide block; 13. Adjusting knob; 14. First fixing frame; 15. First motor; 16. First transmission shaft; 17. First bevel gear; 18. Ball tube; 19. Second bevel gear; 20. Outer gear ring; 21. First sector gear; 22. Second transmission shaft; 23. Second sector gear; 24. Planet gear; 25. Inner gear; 26. Second fixing frame; 27. Lower connecting plate; 28. Fixed rod; 29. Rotating rod; 30. Special-shaped frame; 31. Upper connecting plate; 32. Sector gear guide rail; 33. Fixed plate; 34. Sleeve; 35. First rocker; 36. Connecting rod; 37. Driving rod; 38. Second rocker; 39. Small gear; 40. Large gear; 41. Connecting handle; 42. Sleeve rod; 43. Connecting plate; 44. Telescopic rod; 45. Shock-absorbing spring; 46. Buffer pad; 47. Second motor; 48. Main gear; 49. Driven gear; 50. First serving wheel; 51. Second serving wheel. Specific embodiments

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0049] Embodiment 1

[0050] Refer to Figures 1-15 , a robot for assisting tennis training, including:

[0051] Main body 1;

[0052] Collection frame 4, provided on the main body 1, a ball loading frame 2 is provided at the top of the main body 1, a serving port 3 is provided on the main body 1, a ball tube 18 is provided inside the main body 1, and a special-shaped frame 7 is provided on the collection frame 4;

[0053] First motor 15, fixedly installed inside the main body 1, a first transmission shaft 16 is fixedly installed on the output shaft of the first motor 15, and a first bevel gear 17 and a small gear 39 are fixedly installed on the first transmission shaft 16;

[0054] Second fixing frame 26, fixedly installed inside the main body 1, a lower connecting plate 27 is fixedly installed on the second fixing frame 26, a fixed rod 28 is fixedly installed on the lower connecting plate 27, an upper connecting plate 31 is fixedly installed on the fixed rod 28, a shock-absorbing spring 45 is fixedly installed on the fixed rod 28, and a buffer pad 46 is fixedly installed on the shock-absorbing spring 45, and the buffer pad 46 is in contact with the ball tube 18;

[0055] Recovery mechanism, provided inside the collection frame 4, for recovering the tennis balls after being hit.

[0056] The transmission mechanism is arranged on the first bevel gear 17 and is used to transmit the kinetic energy of the first motor 15;

[0057] The left and right trajectory adjustment mechanism is arranged on the second fixing frame 26 and is used to adjust the left and right of the launch trajectory;

[0058] The up and down trajectory adjustment mechanism is arranged in the main body 1 and is used to adjust the up and down of the launch trajectory.

[0059] In the present invention, a plurality of sliding grooves 10 are arranged in the collection box 4, a plurality of guide plates 5 are arranged in the collection box 4, a plurality of sliders 12 are respectively and fixedly installed on the plurality of guide plates 5, the plurality of sliding grooves 10 are respectively slidably connected with the plurality of sliders 12, and a telescopic bracket 11 is fixedly installed in the collection box 4. The plurality of sliding grooves 10 facilitate the sliding of the plurality of guide plates 5 in the collection box 4, facilitating their folding and storage.

[0060] In the present invention, a first fixing frame 14 is fixedly installed on each of the plurality of guide plates 5, a first support rod 8 is rotatably installed on each of the plurality of first fixing frames 14, an adjustment knob 13 is rotatably installed on each of the plurality of first support rods 8, a second support rod 9 is rotatably installed on each of the plurality of first support rods 8, and the adjustment knob 13 can lock the rotation direction of the first support rod 8, enabling it to effectively and stably support the ball net 6.

[0061] In the present invention, the recycling mechanism includes a ball net 6. The ball net 6 cooperates with the plurality of second support rods 9 and the telescopic bracket 11 respectively and is used to block and recycle tennis balls. The ball net 6 can block the tennis balls after being hit, and the intercepted tennis balls fall into the collection box 4 and fall into the ball loading box 2 through the plurality of guide plates 5, eliminating the need for frequent ball picking and ball hitting steps and facilitating use.

[0062] In the present invention, the transmission mechanism includes a second bevel gear 19. The second bevel gear 19 meshes with the first bevel gear 17. An external tooth ring 20 is fixedly installed on the second bevel gear 19. A first sector gear 21 is fixedly installed on the external tooth ring 20. A plurality of planetary gears 24 are internally meshed with the external tooth ring 20. An internal gear 25 meshes with the plurality of planetary gears 24. A second transmission shaft 22 is fixedly installed on the internal gear 25. A second sector gear 23 is fixedly installed on the second transmission shaft 22. The plurality of planetary gears 24 and the internal gear 25 are both rotatably installed on the second bevel gear 19. The second transmission shaft 22 is rotatably connected with the upper connecting plate 31. The second bevel gear 19 drives the external tooth ring 20 to operate, driving the first sector gear 21 to rotate forward. The plurality of planetary gears 24 and the internal gear 25 cooperate with each other to change their rotation directions, and drive the second sector gear 23 to rotate in the opposite direction through the second transmission shaft 22, realizing synchronous forward and reverse rotation.

[0063] In the present invention, the left and right trajectory adjustment mechanism includes a rotating rod 29, which is rotatably connected to a fixed rod 28. An irregular-shaped frame 30 is fixedly installed on the rotating rod 29. A sector gear guide rail 32 is provided on the irregular-shaped frame 30. The sector gear guide rail 32 cooperates with a first sector gear 21 and a second sector gear 23. The fixed rod 28 restricts the irregular-shaped frame 30, enabling the irregular-shaped frame 30 to adjust its angle around the fixed rod 28. The cooperation between the sector gear guide rail 32 and the first sector gear 21 and the second sector gear 23 can reciprocally adjust the angle of the irregular-shaped frame 30.

[0064] In the present invention, a fixed plate 33 is fixedly installed inside the main body 1. A sleeve 34 is rotatably installed on the fixed plate 33. A first rocker 35 is fixedly installed on the sleeve 34. A connecting rod 36 is fixedly installed on the first rocker 35. A second rocker 38 is fixedly installed at one end of the connecting rod 36. A plurality of driving rods 37 are fixedly installed on the connecting rod 36. The driving rods 37 are fixedly connected to the X-ray tube 18. The sleeve 34 restricts and constrains the first rocker 35. At the same time, the second rocker 38 is symmetrical to the first rocker 36. Cooperating with the plurality of driving rods 37, the up and down angle of the X-ray tube 18 can be adjusted.

[0065] In the present invention, the up and down trajectory adjustment mechanism includes a large gear 40, which meshes with a small gear 39. A connecting handle 41 is fixedly installed on the large gear 40. A sleeve rod 42 is rotatably installed on the connecting handle 41. The sleeve rod 42 is slidably connected to the first rocker 35. Both the small gear 39 and the large gear 40 are rotatably installed inside the main body 1. A speed difference is formed between the small gear 39 and the large gear 40. And cooperating with the sleeve rod 42 to drive the first rocker 35 to move up and down, making the up and down adjustment law non - predictable.

[0066] In the present invention, a connecting plate 43 is fixedly installed on the irregular-shaped frame 30. A telescopic rod 44 is fixedly installed on the connecting plate 43. The telescopic rod 44 is fixedly connected to the X-ray tube 18. The telescopic rod 44 supports the X-ray tube 18 and can assist the up and down adjustment mechanism at the same time, enabling it to effectively perform the up and down angle adjustment operation.

[0067] In the present invention, a second motor 47 is fixedly installed inside the main body 1. A main gear 48 is fixedly installed on the output shaft of the second motor 47. A driven gear 49 meshes with the main gear 48. A first serving wheel 50 and a second serving wheel 51 are respectively fixedly installed on the main gear 48 and the driven gear 49. The second motor 47 drives the first serving wheel 50 and the second serving wheel 51 to operate respectively through the main gear 48 and the driven gear 49, applying power to the tennis ball and completing the launching operation of the tennis ball.

[0068] In the present invention, first, the collection box 4 is placed on the main body 1 so that it communicates with the ball loading box 2. The net 6 stored in the collection box 4 is taken out and unfolded. At the same time, a plurality of first support rods 8, a plurality of second support rods 9 and a telescopic bracket 11 are operated. The adjustment knob 13 can lock the first support rods 8 to support the unfolded net 6, so that it can block the tennis balls after being hit, and cooperate with a plurality of guide plates 5 to guide the collected tennis balls so that they fall back into the ball loading box 2 again for continuous launching and training;

[0069] Secondly, the first motor 15 is started to drive the transmission shaft 16 to drive the first bevel gear 17 and the second bevel gear 19 to rotate, drive the external tooth ring 20 to rotate, and at the same time drive the first sector gear 21 and a plurality of planetary gears 24 to rotate. And the plurality of planetary gears 24 drive the internal gear 25 to rotate, and drive the second sector gear 23 to rotate through the second transmission shaft 22. The first sector gear 21 and the second sector gear 23 cooperate with the sector tooth guide rail 32. And the fixed rod 28 is fixedly installed in the main body 1 with the assistance of the fixing frame 26 and the lower connecting plate 27 to limit the special-shaped frame 30, and cooperate with the first sector gear 21, the second sector gear 23 and the sector tooth guide rail 32 to realize the left and right angle adjustment of the special-shaped frame 30, and synchronously adjust the launching angle of the ball tube 18. And the upper connecting plate 31 restricts the second transmission shaft 22 to assist the cooperation between the first sector gear 21 and the second sector gear 23 and the sector tooth guide rail 32;

[0070] Then, the first transmission shaft 16 drives the connecting handle 41 and the sleeve rod 42 to rotate through the cooperation between the small gear 39 and the large gear 40. Since the connecting handle 41 and the sleeve 34 are rotatably connected, and the fixing plate 33 cooperates with the sleeve 34 to restrict the first rocker 35, the sleeve rod 42 can swing the first rocker 35 up and down, and drive the second rocker 38 to move synchronously through the connecting rod 36, cooperate with a plurality of driving rods 37 to adjust the ball tube 18 up and down, and the telescopic rod 44 assists in the operation to make it meet the up and down angle adjustment of the ball tube 18;

[0071] Finally, the second motor 47 is started to drive the main gear 48 and the driven gear 49 to rotate, and synchronously drive the first serving wheel 50 and the second serving wheel 51 to rotate to launch the tennis balls in the ball tube 18.

[0072] Embodiment 2

[0073] The difference between this embodiment and Embodiment 1 is that: a guiding mechanism is provided on the connecting rod 36, a track is provided in the main body 1, the connecting handle in the guiding mechanism is fixedly connected to the connecting rod 36, a slider is provided on the connecting handle, and the slider is slidably connected to the track to limit and guide the angle of the up and down adjustment, make the tennis ball launching trajectory more accurate and concentrated, and reduce the spread of the tennis ball diffusion to avoid the launched tennis balls going out of bounds.

[0074] As described above, it is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A robot for assisting tennis training, characterized in that: include: Subject (1); A collecting frame (4) is arranged on the main body (1), a ball loading frame (2) is arranged on the top of the main body (1), a ball launching port (3) is arranged on the main body (1), a ball tube (18) is arranged inside the main body (1), and a special-shaped frame (7) is arranged on the collecting frame (4); A motor (15) is fixedly mounted in the main body (1), a transmission shaft (16) is fixedly mounted on the output shaft of the motor (15), and a bevel gear (17) and a pinion gear (39) are fixedly mounted on the transmission shaft (16); A second fixing frame (26) is fixedly mounted in the main body (1); a lower connecting plate (27) is fixedly mounted on the second fixing frame (26); a fixing rod (28) is fixedly mounted on the lower connecting plate (27); an upper connecting plate (31) is fixedly mounted on the fixing rod (28); a shock absorbing spring (45) is fixedly mounted on the fixing rod (28); a buffer pad (46) is fixedly mounted on the shock absorbing spring (45); and the buffer pad (46) is fitted with the ball tube (18); A recovery mechanism is arranged in the collection frame (4) and is used for recovering the tennis ball after being hit; A transmission mechanism, disposed on bevel gear one (17), for transmitting kinetic energy of motor one (15); A left-right trajectory adjustment mechanism is provided on the second fixing frame (26) and is used to adjust the launch trajectory left-right; An up and down trajectory adjustment mechanism is arranged in the main body (1) and is used to adjust the launch trajectory up and down.

2. A robot for assisting tennis training according to claim 1, characterized in that: The collecting frame (4) is provided with a plurality of slide grooves (10), the collecting frame (4) is provided with a plurality of guide plates (5), a plurality of sliders (12) are respectively fixedly mounted on the plurality of guide plates (5), the plurality of slide grooves (10) are respectively slidably connected to the plurality of sliders (12), and a telescopic bracket (11) is fixedly mounted in the collecting frame (4).

3. A robot for assisting tennis training according to claim 2, characterized in that: A fixing frame (14) is fixedly mounted on each of the plurality of guide plates (5), a supporting rod (8) is rotatably mounted on each of the plurality of fixing frames (14), an adjusting knob (13) is rotatably mounted on each of the plurality of supporting rods (8), and a supporting rod (9) is rotatably mounted on each of the plurality of supporting rods (8).

4. A robot for assisting tennis training according to claim 1, characterized in that: The recovery mechanism comprises a ball net (6), which cooperates with a plurality of support rods (9) and a telescopic bracket (11) to intercept and recover tennis balls.

5. A robot for assisting tennis training according to claim 1, characterized in that: The transmission mechanism comprises a second bevel gear (19), the second bevel gear (19) meshing with a first bevel gear (17), an outer gear ring (20) fixedly mounted on the second bevel gear (19), a sector gear (21) fixedly mounted on the outer gear ring (20), a plurality of planetary gears (24) meshing inside the outer gear ring (20), an internal gear (25) meshing on the plurality of planetary gears (24), a second transmission shaft (22) fixedly mounted on the internal gear (25), a sector gear (23) fixedly mounted on the second transmission shaft (22), the plurality of planetary gears (24) and the internal gear (25) are all rotatably mounted on the second bevel gear (19), and the second transmission shaft (22) is rotatably connected to an upper connecting plate (31).

6. A robot for assisting tennis training according to claim 1, characterized in that: The left and right trajectory adjustment mechanism comprises a rotating rod (29), the rotating rod (29) is rotatably connected to a fixed rod (28), a special-shaped frame (30) is fixedly mounted on the rotating rod (29), a sector-shaped tooth guide rail (32) is provided on the special-shaped frame (30), and the sector-shaped tooth guide rail (32) cooperates with a sector gear 1 (21) and a sector gear 2 (23).

7. A robot for assisting tennis training according to claim 1, characterized in that: A fixing plate (33) is fixedly installed in the main body (1), a sleeve (34) is rotatably installed on the fixing plate (33), a rocker arm 1 (35) is fixedly installed on the sleeve (34), a connecting rod (36) is fixedly installed on the rocker arm 1 (35), a rocker arm 2 (38) is fixedly installed on one end of the connecting rod (36), a plurality of driving rods (37) are fixedly installed on the connecting rod (36), and the driving rods (37) are fixedly connected to the ball tube (18).

8. A robot for assisting tennis training according to claim 1, characterized in that: The up and down trajectory adjustment mechanism comprises a large gear (40), the large gear (40) meshes with a small gear (39), a connecting handle (41) is fixedly mounted on the large gear (40), a sleeve rod (42) is rotatably mounted on the connecting handle (41), the sleeve rod (42) is slidably connected to a rocker arm (35), and the small gear (39) and the large gear (40) are both rotatably mounted in the main body (1).

9. A robot for assisting tennis training according to claim 1, characterized in that: A connecting plate (43) is fixedly mounted on the special-shaped frame (30), a telescopic rod (44) is fixedly mounted on the connecting plate (43), and the telescopic rod (44) is fixedly connected to the ball tube (18).

10. A robot for assisting tennis training according to claim 1, characterized in that: A second motor (47) is fixedly mounted in the main body (1); a main gear (48) is fixedly mounted on the output shaft of the second motor (47); a driven gear (49) is meshed on the main gear (48); a first ball-serving wheel (50) and a second ball-serving wheel (51) are fixedly mounted on the main gear (48) and the driven gear (49), respectively.

Images