Table tennis training device

Abstract

The utility model relates to the technical field of table tennis training, in particular to a table tennis training device. The table tennis ball shooting device comprises a base, a height adjusting structure is arranged at the top of the base, a position adjusting structure is arranged at the top of the height adjusting structure, and a shooting structure is arranged at the top of the position adjusting structure and used for shooting table tennis balls. According to the table tennis training device, due to the design of the height adjusting structure, the device can be adjusted according to the height of a user, children, teenagers and adults can find the training height suitable for the children, the teenagers and the adults, comfort and accuracy during training can be guaranteed, and the table tennis training device is suitable for being used for training. Action deformation or improper force application caused by improper height is avoided; through the design of the position adjusting structure, the device can move left and right and rotate, various ball coming conditions in a game can be simulated more truly, and athletes can better adapt to the actual game environment in training.

Description

Technical Field

[0001] This utility model relates to the field of table tennis training technology, and in particular to a table tennis training device. Background Technology

[0002] Table tennis training devices play a vital role in the field of sports, playing an indispensable role in improving players' technical skills, reaction speed, and match strategies. Traditional table tennis training often relies on manual ball feeding or simple ball machines, but these methods have many limitations. Manual ball feeding is limited by the coach's skill level, physical strength, and time, making it difficult to consistently provide a stable and diverse range of training ball trajectories; while simple ball machines have limited functionality and cannot simulate the complex ball situations in real matches. Therefore, the market urgently needs a highly efficient and intelligent table tennis training device. This device needs to be automated and programmable, able to automatically adjust parameters such as serve speed, spin, and landing point according to the player's training needs, simulating various match scenarios. Simultaneously, the device should also have data recording and analysis functions, helping players and coaches intuitively understand training effects and thus develop more scientific training plans. This table tennis training device, integrating automation, intelligence, and personalization, will greatly improve training efficiency and help players rapidly improve their technical skills.

[0003] For example, Chinese utility model patent (CN217645807U) discloses a table tennis ball launching device for table tennis training, which solves the following problem: Current table tennis ball launching devices are generally fixed on the table tennis table and can only simulate a serve from one direction, which is not conducive to improving the trainee's receiving skills and thus reduces the training effect.

[0004] The device includes a base, a support plate fixedly mounted on the top of the base, a T-slot on the top of the support plate, a servo motor fixedly mounted on the front side of the support plate, a transverse lead screw fixedly mounted on the output shaft of the servo motor, a sliding plate threaded onto the outer side of the transverse lead screw, a mounting base fixedly mounted on the top of the sliding plate, a housing fixedly mounted on the top of the mounting base, and a launching tube fixedly mounted on one side of the housing. This invention, through the cooperation of a drive motor, drive shaft, splitter cylinder, splitter plate, drive sprocket, driven sprocket, transmission chain, actuating rod, vertical plate, connecting rod, booster plate, and return spring, can simulate a person serving a ball, and can serve while moving, resulting in varied ball directions, which helps improve the trainee's receiving skills and enhances the training effect.

[0005] When using the above technology, the following technical problems were found in the existing technology: the launch force of the device cannot be adjusted, which will seriously affect the training effect, limit the athlete's adaptability, personalized training needs and breakthrough of technical bottlenecks. To this end, we designed a table tennis training device to provide another technical solution to the above technical problems. Utility Model Content

[0006] Therefore, it is necessary to provide a table tennis training device to address the aforementioned technical problems.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A table tennis training device includes a base, a height adjustment structure on the top of the base, a position adjustment structure on the top of the height adjustment structure, and a launching structure on the top of the position adjustment structure, the launching structure being used to launch table tennis balls.

[0009] In a preferred embodiment of the table tennis training device provided by this utility model, the height adjustment structure includes a support tube, an adjustment plate, a concave plate, and bolts. The support tube is fixed at the top of the base near the midpoint. The adjustment plate is slidably connected to the inner side of the support tube. The concave plate is fixed to the top of the adjustment plate. Bolts are slidably connected to the inner sides of the support tube and the adjustment plate.

[0010] In a preferred embodiment of the table tennis training device provided by this utility model, the position adjustment structure includes a moving mechanism and a rotating mechanism. The moving mechanism is provided on the top of the concave plate, and the rotating mechanism is provided on the inner side of the moving mechanism.

[0011] In a preferred embodiment of the table tennis training device provided by this utility model, the moving mechanism includes a first motor, a support plate, a limiting block, a moving block, a moving plate, a rotating shaft, and a slider. The top of the concave plate is fixed with a support plate, and the bottom side of the support plate is fixed with a first motor near the midpoint. The output end of the first motor is fixed with a rotating shaft, and the top of the rotating shaft is rotatably connected with a slider. The outside of the slider is slidably connected with a moving block, and both sides of the moving block are fixed with moving plates. The top of the support plate is fixed with limiting blocks on both sides, and the two moving plates are slidably connected to the limiting blocks respectively.

[0012] In a preferred embodiment of the table tennis training device provided by this utility model, the inner sides of the two limiting blocks are provided with sliding grooves, and the two limiting blocks are slidably connected by the two sliding grooves and the two moving plates.

[0013] In a preferred embodiment of the table tennis training device provided by this utility model, the rotating mechanism includes a fixed block, a second motor, a rotating wheel, a bevel gear, a rotating rod, a connecting block, a limiting rod, and a first spring. The rotating rod is rotatably connected to the top of the moving block, a fixed block is fixed to one side of the top of the moving block, a second motor is fixed to one end of the fixed block, a rotating wheel is fixed to the output end of the second motor, a bevel gear is fixed to the outer side of the rotating rod, one end of the outer side of the rotating wheel is meshed with the bevel gear, and the other end of the outer side of the rotating wheel is not connected to the bevel gear. A connecting block is fixed to one end of the outer side of the rotating rod, a limiting rod is fixed to the other side of the top of the moving block, and a first spring is fixed to the side of the connecting block and the limiting rod that are close to each other.

[0014] In a preferred embodiment of the table tennis training device provided by this utility model, the launching structure includes a connecting plate, a motor, a screw, a screw sleeve, a connecting sleeve, a mounting sleeve, a rotating rod, a worm gear, a worm, a cam, a bumper block, and a third motor. A connecting plate is fixed to the top of the rotating rod, a motor is fixed to one side of the top of the connecting plate, a screw is fixed to the output end of the motor, a screw sleeve is threaded to the outer side of the screw, a connecting sleeve is fixed to one side of the screw sleeve, a mounting sleeve is fixed to one side of the top of the connecting sleeve, a rotating rod is rotatably connected to the upper end of the inner side of the mounting sleeve, a worm is rotatably connected to the lower end of the inner side of the mounting sleeve, a third motor is fixed to one end of the mounting sleeve, the output end of the third motor is fixed to the worm, a worm gear is fixed to the outer side of the rotating rod, the worm gear and the worm are meshed together, a cam is fixed to one side of the rotating rod, the cam is slidably connected to the inner side of the connecting sleeve, and a bumper block is fixed to one side of the cam.

[0015] In a preferred embodiment of the table tennis training device provided by this utility model, the launching structure further includes a launching tube, a conveying tube, a clamping column, a sliding rod, a second spring, a launching plate, and a baffle. The launching tube is fixed to one side of the top of the connecting plate, and the conveying tube is fixed to one side of the top of the launching tube. The inner side of the conveying tube is slidably connected to multiple table tennis balls. The sliding rod is slidably connected to the inner side of the launching tube. The clamping column is fixed to one side of the sliding rod, and the launching plate is fixed to the other side of the sliding rod. The top of the launching plate is fixed to a baffle. A circular hole is opened on one side of the inner side of the baffle. The second spring is sleeved and connected to the outer side of the sliding rod. One side of the second spring is fixed to the launching tube, and the other side of the second spring is fixed to the launching plate. The clamping column and the connecting sleeve are slidably connected, and the connecting sleeve, the cam, and the clamping column are clamped together.

[0016] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0017] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0018] This utility model provides a table tennis training device. The device is designed with a height adjustment structure, which allows the device to be adjusted according to the user's height. Whether it is a child, teenager or adult, everyone can find a suitable training height. This helps to ensure comfort and accuracy during training and avoids deformation of movements or improper force due to improper height.

[0019] The device, through its position adjustment structure, allows it to move left and right and rotate, thus more realistically simulating various ball situations in a match. This helps athletes better adapt to the actual match environment during training, improving the targeting and efficiency of training, enhancing athletes' reaction ability and coordination, meeting personalized training needs, and increasing the fun of training.

[0020] The device's launch structure allows for adjustment of the ball's power. In table tennis, the ball's power varies greatly, requiring athletes to be highly adaptable. The launch structure's ability to adjust the ball's power simulates various serving situations in actual combat, helping athletes adapt to the rhythm of the game and the characteristics of their opponents in advance, thereby improving their responsiveness and competitive level during the match. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of a table tennis training device according to the present invention;

[0023] Figure 2 This is a side view of a table tennis training device according to the present invention;

[0024] Figure 3 This is a schematic diagram showing the connection between the adjusting plate and the concave plate of a table tennis training device according to this utility model;

[0025] Figure 4 This is a schematic diagram showing the connection between the moving block and the moving plate of a table tennis training device according to this utility model;

[0026] Figure 5 This is a schematic diagram showing the connection between the first motor and the rotating shaft of a table tennis training device according to this utility model;

[0027] Figure 6This is a schematic diagram showing the connection between the rotating wheel and the bevel gear in a table tennis training device according to this utility model;

[0028] Figure 7 This is a schematic diagram of the connection between the screw and the sleeve of a table tennis training device according to this utility model;

[0029] Figure 8 This is a cross-sectional view of a screw sleeve for a table tennis training device according to the present invention;

[0030] Figure 9 This is a schematic diagram showing the connection between the worm gear and worm in a table tennis training device according to this utility model;

[0031] Figure 10 This is a cross-sectional view of the launching tube of a table tennis training device according to the present invention;

[0032] Figure 11 This is a schematic diagram showing the connection between the clamping column and the sliding rod of a table tennis training device according to this utility model.

[0033] In the diagram: 1. Base; 2. Support tube; 3. Adjusting plate; 4. Concave plate; 5. Bolt; 6. First motor; 7. Support plate; 8. Limiting block; 9. Moving block; 10. Moving plate; 11. Rotating shaft; 12. Slider; 13. Fixing block; 14. Second motor; 15. Rotating wheel; 16. Bevel gear; 17. Rotating rod; 18. Connecting block; 19. Limiting rod; 20. First spring; 21. Connecting plate; 22. Motor; 23. Screw; 24. Screw sleeve; 25. Connecting sleeve; 26. Mounting sleeve; 27. Rotating roller; 28. Worm gear; 29. ​​Worm; 30. Cam; 31. Anti-collision block; 32. Third motor; 33. Launching tube; 34. Conveying tube; 35. Ping-pong ball; 36. Clamping column; 37. Sliding rod; 38. Second spring; 39. Launching plate; 40. Baffle. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0035] As described in the background art, the firing force of this device cannot be adjusted, which will seriously affect the training effect, limit the athlete's adaptability, personalized training needs, and breakthroughs in technical bottlenecks.

[0036] To solve this technical problem, this utility model provides a table tennis training device.

[0037] For details, please refer to Figures 1-11A table tennis training device specifically includes: a base 1, a height adjustment structure on the top of the base 1, a position adjustment structure on the top of the height adjustment structure, and a launching structure on the top of the position adjustment structure, the launching structure being used to launch a table tennis ball 35.

[0038] This utility model provides a table tennis training device. The device is designed with a height adjustment structure, which allows the device to be adjusted according to the user's height. Whether it is a child, teenager or adult, everyone can find a suitable training height. This helps to ensure comfort and accuracy during training and avoids deformation of movements or improper force due to improper height.

[0039] The device, through its position adjustment structure, allows it to move left and right and rotate, thus more realistically simulating various ball situations in a match. This helps athletes better adapt to the actual match environment during training, improving the targeting and efficiency of training, enhancing athletes' reaction ability and coordination, meeting personalized training needs, and increasing the fun of training.

[0040] The device's launch structure allows for adjustment of the ball's power. In table tennis, the ball's power varies greatly, requiring athletes to be highly adaptable. The launch structure's ability to adjust the ball's power simulates various serving situations in actual combat, helping athletes adapt to the rhythm of the game and the characteristics of their opponents in advance, thereby improving their responsiveness and competitive level during the match.

[0041] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0043] Reference Figures 1-11 A table tennis training device includes a base 1, a height adjustment structure on the top of the base 1, a position adjustment structure on the top of the height adjustment structure, and a launching structure on the top of the position adjustment structure, the launching structure being used to launch a table tennis ball 35.

[0044] The height adjustment structure includes a support tube 2, an adjustment plate 3, a concave plate 4, and bolts 5. The support tube 2 is fixed at the top of the base 1 near the midpoint. The adjustment plate 3 is slidably connected to the inner side of the support tube 2. The concave plate 4 is fixed to the top of the adjustment plate 3. Bolts 5 are slidably connected to the inner sides of the support tube 2 and the adjustment plate 3, so that the height adjustment structure can adjust the device to adapt to the height of the trainee.

[0045] The position adjustment structure includes a moving mechanism and a rotating mechanism. The moving mechanism is provided on the top of the concave plate 4, and the rotating mechanism is provided on the inner side of the moving mechanism, so that the device can launch the ball from different positions.

[0046] The moving mechanism includes a first motor 6, a support plate 7, a limiting block 8, a moving block 9, a moving plate 10, a rotating shaft 11, and a slider 12. The support plate 7 is fixed to the top of the concave plate 4. The first motor 6 is fixed to the bottom side of the support plate 7 near the midpoint. The rotating shaft 11 is fixed to the output end of the first motor 6. The top of the rotating shaft 11 is rotatably connected to the slider 12. The moving block 9 is slidably connected to the outside of the slider 12. The moving plate 10 is fixed to both sides of the moving block 9. The limiting blocks 8 are fixed to both sides of the top of the support plate 7. The two moving plates 10 are slidably connected to the limiting blocks 8 respectively, so that the moving mechanism can adjust the position of the launching tube 33.

[0047] The inner sides of the two limiting blocks 8 are provided with sliding grooves. The two limiting blocks 8 are slidably connected through the two sliding grooves and the two moving plates 10, making the connection between the limiting blocks 8 and the moving plates 10 more stable.

[0048] The rotating mechanism includes a fixed block 13, a second motor 14, a rotating wheel 15, a bevel gear 16, a rotating rod 17, a connecting block 18, a limiting rod 19, and a first spring 20. The rotating rod 17 is rotatably connected to the top of the moving block 9. The fixed block 13 is fixed to one side of the top of the moving block 9. The second motor 14 is fixed to one end of the fixed block 13. The rotating wheel 15 is fixed to the output end of the second motor 14. The bevel gear 16 is fixed to the outside of the rotating rod 17. One end of the outer side of the rotating wheel 15 is meshed with the bevel gear 16, while the other end of the outer side of the rotating wheel 15 is not connected to the bevel gear 16. The connecting block 18 is fixed to one end of the outer side of the rotating rod 17. The limiting rod 19 is fixed to the other side of the top of the moving block 9. The first spring 20 is fixed to the side of the connecting block 18 and the limiting rod 19 that are close to each other, so that the rotating mechanism can drive the launching tube 33 to rotate.

[0049] The launching structure includes a connecting plate 21, a motor 22, a screw 23, a screw sleeve 24, a connecting sleeve 25, a mounting sleeve 26, a rotating roller 27, a worm gear 28, a worm 29, a cam 30, a bumper block 31, a third motor 32, a launching tube 33, a delivery tube 34, a clamping post 36, a sliding rod 37, a second spring 38, a launching disc 39, and a baffle 40. The top of the rotating roller 17 is fixed to the connecting plate 21, and one side of the top of the connecting plate 21 is fixed to the motor 22. A screw 23 is fixed to the output end. A screw sleeve 24 is threadedly connected to the outer side of the screw 23. A connecting sleeve 25 is fixed to one side of the screw sleeve 24. A mounting sleeve 26 is fixed to one side of the top of the connecting sleeve 25. A rotating roller 27 is rotatably connected to the upper end of the inner side of the mounting sleeve 26. A worm gear 29 is rotatably connected to the lower end of the inner side of the mounting sleeve 26. A third motor 32 is fixed to one end of the mounting sleeve 26. The output end of the third motor 32 is fixed to the worm gear 29. A worm wheel 28 is fixed to the outer side of the rotating roller 27. 28 and worm gear 29 are meshed and connected. A cam 30 is fixed to one side of the rotating rod 27. The cam 30 is slidably connected to the inner side of the connecting sleeve 25. A bumper block 31 is fixed to one side of the cam 30. A launching tube 33 is fixed to one side of the top of the connecting plate 21. A conveying tube 34 is fixed to one side of the top of the launching tube 33. Multiple ping-pong balls 35 are slidably connected to the inner side of the conveying tube 34. A sliding rod 37 is slidably connected to the inner side of the launching tube 33. A clamping post 36 is fixed to one side of the sliding rod 37. A launching plate 39 is fixed to the other side of the slide rod 37. A baffle 40 is fixed to the top of the launching plate 39. A circular hole is opened on one side of the inner side of the baffle 40. A second spring 38 is sleeved and connected to the outer side of the slide rod 37. One side of the second spring 38 is fixed to the launching tube 33, and the other side of the second spring 38 is fixed to the launching plate 39. The clamping column 36 and the connecting sleeve 25 are slidably connected. The connecting sleeve 25, the cam 30 and the clamping column 36 are clamped and connected, so that the launching structure can launch a ping-pong ball 35.

[0050] The first motor 6, the second motor 14, the electric motor 22, and the third motor 32 all have the ability to self-lock when power is off, so that the stroke of the device can be locked and controlled.

[0051] This utility model provides a table tennis training device. The device is designed with a height adjustment structure, which allows the device to be adjusted according to the user's height. Whether it is a child, teenager or adult, everyone can find a suitable training height. This helps to ensure comfort and accuracy during training and avoids deformation of movements or improper force due to improper height.

[0052] The device, through its position adjustment structure, allows it to move left and right and rotate, thus more realistically simulating various ball situations in a match. This helps athletes better adapt to the actual match environment during training, improving the targeting and efficiency of training, enhancing athletes' reaction ability and coordination, meeting personalized training needs, and increasing the fun of training.

[0053] The device's launch structure allows for adjustment of the ball's power. In table tennis, the ball's power varies greatly, requiring athletes to be highly adaptable. The launch structure's ability to adjust the ball's power simulates various serving situations in actual combat, helping athletes adapt to the rhythm of the game and the characteristics of their opponents in advance, thereby improving their responsiveness and competitive level during the match.

[0054] The usage process of the table tennis training device provided by this utility model is as follows: The user first adjusts the height of the device according to their height. First, remove bolt 5. After adjusting the relative positions of the support tube 2 and the adjusting plate 3, the user reinstalls bolt 5 to complete the height adjustment of the device. The user then powers on the first motor 6, which drives the rotating shaft 11 to rotate. The rotation of the rotating shaft 11 causes the slider 12 to slide inside the moving block 9, thereby allowing the two moving plates 10 to slide inside the two limiting blocks 8 while also causing the moving block 9 to move left and right on the top of the support plate 7. At this time, the user powers on the second motor 14, which drives the rotating wheel to rotate. When the rotating wheel 15 rotates, since one side of the rotating wheel 15 is engaged with the bevel gear 16, while the other side of the rotating wheel 15 is not connected to the bevel gear 16, the rotation of the rotating wheel 15 drives the bevel gear 16 to rotate half a turn, which in turn drives the rotating rod 17 to rotate half a turn. Since one side of the rotating rod 17 is connected to the limit rod 19 through the first spring 20, the first spring 20 can drive the rotating rod 17 to rotate back to its original position, allowing the rotating rod 17 to rotate back and forth. The back and forth rotation of the rotating rod 17 can drive the connecting plate 21 to rotate back and forth. At this time, the user turns on the motor 22 to rotate, and the output end of the motor 22 drives the screw 23 to rotate. Since the outer thread of the screw 23 is connected to the screw sleeve 24, the rotation of the screw 23... The screw sleeve 24 moves towards the side of the motor 22, which in turn moves the connecting sleeve 25. This, in turn, moves the clamping post 36, the slide rod 37, and the launching plate 39. The movement of the launching plate 39 compresses the second spring 38, which in turn moves the baffle 40. Finally, the ping-pong ball 35 falls through the round hole on the inner side of the top of the baffle 40 into the inner side of the launching tube 33. At this point, the user powers on the third motor 32, which drives the worm gear 29 to rotate. Since the top of the worm gear 29 is meshed with a worm wheel 28, the rotation of the worm gear 29 drives the worm wheel 28 to rotate. The rotating rod 27 rotates, which in turn rotates the cam 30, causing the cam 30 to disengage from the clamping connection of the clamping column 36. Under the elastic force of the second spring 38, the launching plate 39 pushes the ping-pong ball 35, launching the ping-pong ball 35 out of the launching tube 33. After firing one of the launching tubes 33, the above process can be repeated to launch the remaining launching tubes 33, which helps the user train. In summary, the launching structure of the ping-pong training device can adjust the serving force, bringing many benefits. It not only improves the targeting and effectiveness of training, but also promotes the all-round development of athletes' skills and enhances their adaptability and perception in competition.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A table tennis training device comprising a base (1), characterized in that, The base (1) is provided with a height adjustment structure at the top, a position adjustment structure at the top of the height adjustment structure, and a launching structure at the top of the position adjustment structure. The launching structure is used to launch a ping-pong ball (35).

2. A table tennis training device according to claim 1, characterised in that, The height adjustment structure includes a support tube (2), an adjustment plate (3), a concave plate (4), and bolts (5). The support tube (2) is fixed at the top of the base (1) near the midpoint. The adjustment plate (3) is slidably connected to the inner side of the support tube (2). The concave plate (4) is fixed to the top of the adjustment plate (3). Bolts (5) are slidably connected to the inner sides of the support tube (2) and the adjustment plate (3).

3. A table tennis training device according to claim 2, wherein, The position adjustment structure includes a moving mechanism and a rotating mechanism. The top of the concave plate (4) is provided with a moving mechanism, and the inner side of the moving mechanism is provided with a rotating mechanism.

4. A table tennis training device according to claim 3, wherein, The moving mechanism includes a first motor (6), a support plate (7), a limiting block (8), a moving block (9), a moving plate (10), a rotating shaft (11), and a slider (12). The top of the concave plate (4) is fixed with the support plate (7). The bottom side of the support plate (7) near the midpoint is fixed with the first motor (6). The output end of the first motor (6) is fixed with the rotating shaft (11). The top of the rotating shaft (11) is rotatably connected with the slider (12). The outside of the slider (12) is slidably connected with the moving block (9). The two sides of the moving block (9) are fixed with the moving plate (10). The top two sides of the support plate (7) are fixed with the limiting blocks (8). The two moving plates (10) are slidably connected with the limiting blocks (8) respectively.

5. A table tennis training device according to claim 4, wherein, The inner sides of the two limiting blocks (8) are provided with sliding grooves, and the two limiting blocks (8) are slidably connected by the two sliding grooves and the two moving plates (10).

6. A table tennis training device according to claim 5, wherein, The rotating mechanism includes a fixed block (13), a second motor (14), a rotating wheel (15), a bevel gear (16), a rotating rod (17), a connecting block (18), a limiting rod (19), and a first spring (20). The rotating rod (17) is rotatably connected to the top of the moving block (9). A fixed block (13) is fixed to one side of the top of the moving block (9). The second motor (14) is fixed to one end of the fixed block (13). The rotating wheel is fixed to the output end of the second motor (14). 15) A bevel gear (16) is fixed on the outside of the rotating rod (17). One end of the outer side of the rotating wheel (15) is meshed with the bevel gear (16). The other end of the outer side of the rotating wheel (15) is not connected to the bevel gear (16). A connecting block (18) is fixed on one end of the outer side of the rotating rod (17). A limit rod (19) is fixed on the other side of the top of the moving block (9). A first spring (20) is fixed on the side where the connecting block (18) and the limit rod (19) are close to each other.

7. A table tennis training device according to claim 6, wherein, The launching structure includes a connecting plate (21), a motor (22), a screw (23), a screw sleeve (24), a connecting sleeve (25), a mounting sleeve (26), a rotating rod (27), a worm gear (28), a worm (29), a cam (30), a collision protection block (31), and a third motor (32). The top of the rotating rod (17) is fixed with the connecting plate (21). The top side of the connecting plate (21) is fixed with the motor (22). The output end of the motor (22) is fixed with the screw (23). The outer side of the screw (23) is threaded with the screw sleeve (24). The side of the screw sleeve (24) is fixed with the connecting sleeve (25). A mounting sleeve (26) is fixed to one side of the top. A rotating rod (27) is rotatably connected to the upper end of the inner side of the mounting sleeve (26). A worm gear (29) is rotatably connected to the lower end of the inner side of the mounting sleeve (26). A third motor (32) is fixed to one end of the mounting sleeve (26). The output end of the third motor (32) is fixed to the worm gear (29). A worm wheel (28) is fixed to the outer side of the rotating rod (27). The worm wheel (28) and the worm gear (29) are meshed together. A cam (30) is fixed to one side of the rotating rod (27). The cam (30) is slidably connected to the inner side of the connecting sleeve (25). A bumper block (31) is fixed to one side of the cam (30).

8. A table tennis training device according to claim 7, characterised in that, The launching structure also includes a launching tube (33), a conveying tube (34), a clamping post (36), a sliding rod (37), a second spring (38), a launching disk (39), and a baffle (40). The launching tube (33) is fixed to one side of the top of the connecting plate (21), and the conveying tube (34) is fixed to one side of the top of the launching tube (33). The inner side of the conveying tube (34) is slidably connected to multiple ping-pong balls (35). The sliding rod (37) is slidably connected to the inner side of the launching tube (33), and a clamping post (36) is fixed to one side of the sliding rod (37). A launch plate (39) is fixed to the other side of the slide rod (37). A baffle (40) is fixed to the top of the launch plate (39). A circular hole is opened on one side of the inner side of the baffle (40). A second spring (38) is sleeved and connected to the outer side of the slide rod (37). One side of the second spring (38) is fixed to the launch tube (33). The other side of the second spring (38) is fixed to the launch plate (39). The clamping column (36) and the connecting sleeve (25) are slidably connected. The connecting sleeve (25), the cam (30) and the clamping column (36) are clamped and connected.

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