Table tennis serving machine for physical training

Abstract

The invention discloses a table tennis serving machine for physical training, which comprises a box body, a continuous serving assembly, a power reciprocating assembly, a fixing assembly, a table tennis placing frame and a box door, the continuous serving assembly is rotatably arranged on the inner wall of the box body, the power reciprocating assembly is arranged on the outer wall of the box body, and the fixing assembly is rotatably arranged on the continuous serving assembly; the table tennis ball placing frames are arranged on the fixing assemblies in a sliding mode, the table tennis ball placing grooves are formed in the bottom wall of the box body, table tennis ball placing grooves are formed in the table tennis ball placing frames, and the box door is hinged to the side wall of the box body. The invention belongs to the technical field of table tennis training instruments, and particularly relates to a table tennis serving machine for physical training. According to the table tennis ball serving device, the continuous ball serving assembly and the power reciprocating assembly are arranged, table tennis balls can be randomly served from any one of seven ball serving openings when the ball serving guide frame is turned over, and the response and coping capacity of a user to random ball serving can be trained.

Description

Technical Field

[0001] The invention belongs to the technical field of table tennis training equipment, in particular to a table tennis serving machine for sports training. Background Art

[0002] There are many table tennis techniques, including serving, attacking, and receiving techniques, as well as pushing, slicing, rubbing, pulling, driving, smashing, and looping techniques.

[0003] Due to the development of technology, many table tennis serving machines are used for serving training. During serving training, the serving direction is generally fixed or regular, which cannot simulate the actual competition situation of the athletes well. Therefore, the training effect cannot reach the ideal state, which affects the effect of table tennis training. Therefore, a table tennis serving machine that solves the above problems is needed. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a table tennis serving machine with a continuous serving component and a power reciprocating component that can serve the ball continuously, which effectively solves the problem that the table tennis serving machines on the market cannot achieve random direction serving and the table tennis training effect is not ideal.

[0005] The technical scheme adopted by the present invention is as follows: A table tennis serving machine for sports training comprises a box body, a continuous serving assembly, a power reciprocating assembly, a fixed assembly, a table tennis ball placing rack and a box door, a vent is arranged on the side wall of the box body, the continuous serving assembly is rotatably arranged on the inner wall of the box body, the power reciprocating assembly is arranged on the outer wall of the box body, two groups of fixed assemblies are arranged rotatably on the continuous serving assembly, a table tennis ball placing rack is provided with table tennis ball placing grooves, two groups of table tennis ball placing racks are arranged, the two groups of table tennis ball placing racks are respectively slidably arranged on the two groups of fixed assemblies, the box door is hinged on the side wall of the box body, the box door is transparent, and the power reciprocating assembly drives the continuous serving assembly to work.

[0006] Furthermore, the continuous serving assembly includes a central rotating shaft, a serving slave gear, a sleeve, a flip plate, a second flip assembly and a first flip assembly, wherein both ends of the central rotating shaft are fixedly arranged on the inner wall of the box body, two groups of serving slave gears are provided, and the two groups of serving slave gears are rotatably arranged on the central rotating shaft, the sleeve is rotatably arranged on the central rotating shaft, and both ends of the sleeve are fixedly arranged on the two groups of serving slave gears, two groups of flip plates are provided, one group of flip plates is rotatably arranged on the sleeve, and the other group of flip plates is rotatably arranged on the central rotating shaft, the second flip assembly is arranged on the inner wall on one side of the box body, and the first flip assembly is arranged on the inner wall on the other side of the box body, the first flip assembly drives one group of serving slave gears to rotate, and makes the corresponding flip plate flip, and drives one group of fixed components and the table tennis rack to flip, one group of serving slave gears drives another group of serving slave gears to rotate through the sleeve, and the other group of serving slave gears drives the second flip assembly to work, thereby making another group of flip plates flip, and then making another group of fixed components and the table tennis rack flip.

[0007] Furthermore, the second flipping assembly includes a fixed vertical plate, a rotating rod, a flipping main gear, a limiting special-shaped plate and a lever. The fixed vertical plate is fixedly arranged on the bottom wall of the box body, one end of the rotating rod is rotatably arranged on the inner wall of the box body, and the other end of the rotating rod is rotatably arranged on the fixed vertical plate. The flipping main gear is fixedly arranged on the rotating rod. The flipping main gear is meshed and connected with one group of serving slave gears. The limiting special-shaped plate is fixedly arranged on the rotating rod. The limiting special-shaped plate and one group of flipping plates are in the same plane. The limiting special-shaped plate is adapted to one group of flipping plates. The lever is fixedly arranged on the rotating rod. The lever is adapted to one group of flipping plates. One group of serving slave gears drives the flipping main gear to rotate, thereby driving the rotating rod to rotate, and drives the flipping plate to rotate through the limiting special-shaped plate and the lever, so as to finally achieve the serving effect.

[0008] Furthermore, the first flip assembly includes a second fixed vertical plate, a second rotating rod, a flip master gear, a second flip main gear, a second limiting special-shaped plate and a second lever. The second fixed vertical plate is fixedly arranged on the bottom wall of the box body, one end of the second rotating rod is rotatably arranged on the second fixed vertical plate, and the other end of the second rotating rod rotates through the side wall of the box body. The flip master gear is fixedly arranged on the second end of the rotating rod, the second flip main gear is fixedly arranged on the second rotating rod, the second flip main gear is meshed and connected with another group of serving slave gears, the second limiting special-shaped plate is fixedly arranged on the second rotating rod, the second limiting special-shaped plate and the other group of flip plates are in the same plane, the second limiting special-shaped plate is adapted to the other group of flip plates, the second lever is fixedly arranged on the second rotating rod, the second lever is adapted to the other group of flip plates, the flip master gear drives the second rotating rod to rotate, the second rotating rod drives one group of serving slave gears to rotate through the second flip main gear, and at the same time, the second rotating rod drives the second limiting special-shaped plate and the second lever to rotate, so that one group of fixed components and the table tennis rack are flipped.

[0009] Furthermore, the power reciprocating component includes a power box, a motor, a power main gear, a slide rail, a three-tooth gear plate and a reciprocating circulation component. The power box is fixed on the outer wall of the box body, the motor is fixed on the inner wall of the power box, the motor is electrically connected to an external power supply, the power main gear is fixed on the output end of the motor, the slide rail is fixed on the outer wall of the box body, the three-tooth gear plate is slidably arranged on the slide rail, the three-tooth gear plate is provided with teeth on three sides, one of the teeth on the three-tooth gear plate is meshed and connected with the flip main gear, the reciprocating circulation component is rotatably arranged on the outer wall of the box body, and the reciprocating circulation component is provided with two groups. The rotation of the power main gear can drive the two groups of reciprocating circulation components to work, thereby driving the three-tooth gear plate to reciprocate, and then driving the flip main gear to rotate forward and reverse.

[0010] Furthermore, the reciprocating circulation component includes a short shaft, a power secondary gear and a sector gear. The short shaft is rotatably arranged on the outer wall of the box body, the power secondary gear is fixedly arranged on the short shaft, and the sector gear is fixedly arranged on the short shaft. Two sets of power secondary gears are meshed and connected with the power main gear. The two sets of sector gears are meshed and connected with the teeth on the upper and lower surfaces of the three-tooth gear plate. The power main gear rotates, driving the two sets of power secondary gears to rotate, and through the short shaft transmission, driving the two sets of sector gears to rotate, and the two sets of sector teeth successively drive the three-tooth gear plate to reciprocate.

[0011] Furthermore, the table tennis rack includes a rail frame, a limiting column, a screw group and a serving guide frame, wherein one group of rail frames is rotatably arranged on the sleeve, and the other group of rail frames is rotatably arranged on the central rotating shaft. The two groups of rail frames are respectively fixed on the two groups of flip plates, the bottom end of the limiting column is fixedly arranged on the rail frame, the bottom end of the screw group is rotatably arranged on the rail frame, the serving guide frame is slidably arranged on the limiting column, the serving guide frame is threaded on the screw group, the table tennis rack is slidably arranged on the rail frame, seven serving ports are arranged on the serving guide frame, and branch connecting pipes are arranged between the seven serving ports and the table tennis placement groove. The branch connecting pipes match the size of the table tennis placement groove, and the screw group is rotated to make the serving guide frame move up and down, thereby connecting the branch connecting pipes with the table tennis placement groove, so as to complete the serving when the table tennis rack is flipped.

[0012] The beneficial effects achieved by the present invention using the above structure are as follows: This solution provides a table tennis serving machine with a continuous serving component and a power reciprocating component that can serve the ball successively, which effectively solves the problem that the table tennis serving machine on the current market cannot realize the serving in random directions and the table tennis training effect is not ideal. This method brings the following advantages: (1) The rail frame drives the serving guide frame and the table tennis ball placement frame to rotate, and the table tennis ball flies out from one of the seven serving holes along the table tennis ball placement frame and the branch connecting pipe by relying on the inertia during rotation, and bounces on the table tennis table. There are seven serving holes, and when the serving guide frame flips over, the table tennis ball can be randomly served from any one of the seven serving holes, which can train the user's reaction and response ability to random serving; (2) The first limiting shaped plate is matched with one group of the flip plates, and the second limiting shaped plate is matched with the other group of the flip plates. On the one hand, it ensures the technical effect of limiting the position of the flip plates before the two groups of flip plates flip, thereby avoiding the rotation of the flip plates. On the other hand, it realizes that after the lever second flips one group of the flip plates, the second limiting shaped plate limits the flip plates and can also rotate the second limiting shaped plate, that is, the flip plates are limited, and the flip plates do not rotate with the rotation of the first limiting shaped plate. (3) Two sets of serving slave gears are fixedly connected by a sleeve, and a flip plate is rotatably arranged on the sleeve, so that when one set of serving slave gears rotates, the other set of serving slave gears rotates accordingly, thereby causing the other set of serving slave gears to drive the flip master gear to rotate. In addition, when the sleeve rotates, the flip plate does not rotate accordingly, thereby ensuring the training effect of alternating serving in two directions and avoiding the use of two sets of power; (4) The sector teeth are arranged in a sector shape so that the three-tooth tooth plate cannot always be in a state of moving with the rotation of the sector teeth, thus avoiding the problem of being unable to make the three-tooth tooth plate move back and forth; (5) Two sets of sector teeth are provided, both sets of sector teeth are meshed and connected with the three-tooth gear plate, and the two sets of sector teeth work together, so that when one set of sector teeth drives the three-tooth gear plate to move, the other set of sector teeth is in an idling state, that is, the other set of sector teeth cannot drive the three-tooth gear plate to move, thereby achieving the technical effect of reciprocating movement of the three-tooth gear plate; (6) A three-tooth gear plate is provided, and teeth are provided on both the upper and lower surfaces of the three-tooth gear plate, and teeth are also provided on the side surfaces of the three-tooth gear plate, so that when the two sets of fan-shaped teeth rotate, the three-tooth gear plate can be driven to move back and forth, thereby driving the flipping main gear to rotate forward and reverse, and finally achieving the technical effect of flipping the two sets of rail frames and restoring them to their original positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the three-dimensional structure of a table tennis serving machine for sports training provided by the present invention; Figure 2 A schematic diagram of the three-dimensional structure of a table tennis serving machine for sports training provided by the present invention, excluding a box door and a power box; Figure 3 A schematic diagram of the structure of the continuous ball-serving assembly, the power reciprocating assembly and the rail frame provided by the present invention; Figure 4 A schematic diagram of the structure of the continuous serving assembly provided by the present invention; Figure 5 for Figure 3 A partial enlarged schematic diagram in the middle; Figure 6 for Figure 4 A partial enlarged schematic diagram of point B in the middle; Figure 7 for Figure 2 A partial enlarged schematic diagram of point C in the middle.

[0014] Among them, 1. box body, 2. continuous serving assembly, 3. power reciprocating assembly, 4. fixed assembly, 5. table tennis rack, 6. table tennis slot, 8. box door, 9. central shaft, 10. serving gear, 11. sleeve, 12. flip plate, 13. second flip assembly, 14. first flip assembly, 15. fixed vertical plate 1, 16. rotating rod 1, 17. flip main gear 1, 18. limit special-shaped plate 1, 19. lever 1, 20. fixed vertical plate 2 , 21. Turn rod 2, 22. Flip main gear, 23. Flip main gear 2, 24. Limit special-shaped plate 2, 25. Push rod 2, 26. Power box, 27. Motor, 28. Power main gear, 29. Slide rail, 30. Three-tooth gear plate, 31. Reciprocating circulation component, 32. Short shaft, 33. Power secondary gear, 34. Fan-shaped teeth, 35. Rail frame, 36. Limit column, 37. Screw group, 38. Ball serving guide frame, 39. Ball serving port, 40. Branch connecting pipe.

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0018] like Figure 1-Figure 2As shown, a table tennis serving machine for sports training provided by the present invention comprises a box body 1, a continuous serving assembly 2, a power reciprocating assembly 3, a fixed assembly 4, a table tennis ball placing rack 5 and a box door 8, a vent is provided on the side wall of the box body 1, the continuous serving assembly 2 is rotatably arranged on the inner wall of the box body 1, the power reciprocating assembly 3 is arranged on the outer wall of the box body 1, two groups of fixed assemblies 4 are provided, and the two groups of fixed assemblies 4 are rotatably arranged on the continuous serving assembly 2, a table tennis ball placing rack 5 is provided with a table tennis ball placing groove 6, two groups of table tennis ball placing racks 5 are provided, and the two groups of table tennis ball placing racks 5 are respectively slidably arranged on the two groups of fixed assemblies 4, and the box door 8 is hinged on the side wall of the box body 1, and the box door 8 is transparent.

[0019] like Figure 4 As shown, the continuous serving assembly 2 includes a central rotating shaft 9, a serving gear 10, a sleeve 11, a flip plate 12, a second flip assembly 13 and a first flip assembly 14. Both ends of the central rotating shaft 9 are fixed on the inner wall of the box body 1. There are two groups of serving gears 10, and the two groups of serving gears 10 are rotatably arranged on the central rotating shaft 9. The sleeve 11 is rotatably arranged on the central rotating shaft 9. Both ends of the sleeve 11 are fixedly arranged on the two groups of serving gears 10. There are two groups of flip plates 12, one group of flip plates 12 is rotatably arranged on the sleeve 11, and the other group of flip plates 12 is rotatably arranged on the central rotating shaft 9. The second flip assembly 13 is arranged on the inner wall of one side of the box body 1, and the first flip assembly 14 is arranged on the inner wall of the other side of the box body 1.

[0020] like Figure 3-Figure 5 As shown, the second flip assembly 13 includes a fixed vertical plate 15, a rotating rod 16, a flip main gear 17, a limiting special-shaped plate 18 and a lever 19, the fixed vertical plate 15 is fixedly arranged on the bottom wall of the box body 1, one end of the rotating rod 16 is rotatably arranged on the inner wall of the box body 1, and the other end of the rotating rod 16 is rotatably arranged on the fixed vertical plate 15, the flip main gear 17 is fixedly arranged on the rotating rod 16, and the flip main gear 17 is meshed and connected with one group of serving slave gears 10, the limiting special-shaped plate 18 is fixedly arranged on the rotating rod 16, the limiting special-shaped plate 18 and one group of flip plates 12 are in the same plane, the limiting special-shaped plate 18 is adapted to one group of flip plates 12, and the lever 19 is fixedly arranged on the rotating rod 16, and the lever 19 is adapted to one group of flip plates 12.

[0021] like Figure 3-Figure 4 , Figure 6As shown, the first flip assembly 14 includes a fixed vertical plate 20, a rotating rod 21, a flip master gear 22, a flip main gear 23, a limiting special-shaped plate 24 and a shifting rod 25. The fixed vertical plate 20 is fixedly arranged on the bottom wall of the box body 1, one end of the rotating rod 21 is rotatably arranged on the fixed vertical plate 20, and the other end of the rotating rod 21 rotates through the side wall of the box body 1. The flip master gear 22 is fixedly arranged on the end of the rotating rod 21, the flip main gear 23 is fixedly arranged on the rotating rod 21, and the flip main gear 23 is meshed and connected with another group of serving slave gears 10. The limiting special-shaped plate 24 is fixedly arranged on the rotating rod 21, and the limiting special-shaped plate 24 and another group of flip plates 12 are in the same plane. The limiting special-shaped plate 24 is adapted to another group of flip plates 12, and the shifting rod 25 is fixedly arranged on the rotating rod 21, and the shifting rod 25 is adapted to another group of flip plates 12.

[0022] like Figure 1-Figure 2 As shown, the power reciprocating component 3 includes a power box 26, a motor 27, a power main gear 28, a slide rail 29, a three-tooth gear plate 30 and a reciprocating circulation component 31. The power box 26 is fixedly arranged on the outer wall of the box body 1, the motor 27 is fixedly arranged on the inner wall of the power box 26, the motor 27 is electrically connected to an external power supply, the power main gear 28 is fixedly arranged on the output end of the motor 27, the slide rail 29 is fixedly arranged on the outer wall of the box body 1, the three-tooth gear plate 30 is slidably arranged on the slide rail 29, the three-tooth gear plate 30 is provided with teeth on three sides, one of the teeth on the three-tooth gear plate 30 is meshed and connected with the flip main gear 22, and the reciprocating circulation component 31 is rotatably arranged on the outer wall of the box body 1, and the reciprocating circulation component 31 is provided with two groups.

[0023] like Figure 2-Figure 3 , Figure 7 As shown, the reciprocating circulation component 31 includes a short shaft 32, a power secondary gear 33 and a sector tooth 34. The short shaft 32 is rotatably arranged on the outer wall of the box body 1, the power secondary gear 33 is fixedly arranged on the short shaft 32, and the sector tooth 34 is fixedly arranged on the short shaft 32. The two groups of power secondary gears 33 are meshed and connected with the power main gear 28, and the two groups of sector teeth 34 are meshed and connected with the teeth on the upper and lower surfaces of the three-tooth gear plate 30.

[0024] like Figure 2As shown, the table tennis rack 5 includes a rail frame 35, a limiting column 36, a screw group 37 and a serving guide frame 38, wherein one group of rail frames 35 is rotatably disposed on the sleeve 11, and the other group of rail frames 35 is rotatably disposed on the central rotating shaft 9, the two groups of rail frames 35 are respectively fixed on the two groups of flip plates 12, the bottom end of the limiting column 36 is fixedly disposed on the rail frame 35, the bottom end of the screw group 37 is rotatably disposed on the rail frame 35, the serving guide frame 38 is slidably disposed on the limiting column 36, the serving guide frame 38 is threadedly disposed on the screw group 37, the table tennis rack 5 is slidably disposed on the rail frame 35, seven serving ports 39 are disposed on the serving guide frame 38, and a branch connecting pipe 40 is disposed between the seven serving ports 39 and the table tennis placement groove 6, and the branch connecting pipe 40 matches the size of the table tennis placement groove 6.

[0025] When in use, the device is first installed on one side of the tabletop of the table tennis table, the door 8 is opened, two sets of table tennis racks 5 are taken out, and table tennis balls are put into the table tennis racks 6 in the two sets of table tennis racks 5, and the screw group 37 is rotated, and the screw group 37 drives the serving guide rack 38 to move downward. After the branch connecting pipe 40 is connected to the table tennis rack 6, the screw group 37 is stopped, and the door 8 is closed. When serving is needed, the motor 27 is turned on, and the motor 27 drives the power main gear 28 to rotate, and the power main gear 28 drives the two sets of power secondary gears 33 to rotate, and the upper power secondary gear 33 drives the upper short shaft 32 to rotate, and the upper short shaft 32 drives the upper fan-shaped gear 34 to rotate, and the upper fan-shaped gear 34 drives the three-tooth gear plate 30 to move inward, and the three-tooth gear plate 30 drives The flip master gear 22 rotates, the flip master gear 22 drives the rotating rod 21 to rotate, the rotating rod 21 drives the flip master gear 23, the limiting special-shaped plate 24 and the shifting rod 25 to rotate, the shifting rod 25 shifts the corresponding flip plate 12 to rotate, the corresponding flip plate 12 drives the corresponding rail frame 35 to rotate, the rail frame 35 drives the serving guide frame 38 and the table tennis rack 5 to rotate, relying on the inertia during rotation to make the table tennis ball fly out from one of the seven serving ports 39 along the table tennis rack 5 and the branch connecting pipe 40, and bounce on the table tennis table, so as to achieve serving, the flip master gear 2 23 continues to rotate, driving the corresponding serving slave gear 10 to rotate, the corresponding serving slave gear 10 drives the sleeve 11 to rotate, the sleeve 11 drives another group of serving slave gears 10 to rotate, and the other A set of serving slave gears 10 drives the flip main gear 17 to rotate, the flip main gear 17 drives the rotating rod 16 to rotate, the rotating rod 16 drives the limiting special-shaped plate 18 and the lever 19 to rotate, the lever 19 drives another set of flip plates 12 to rotate, the other set of flip plates 12 drives another set of rail frames 35 to rotate, the other set of rail frames 35 drives another set of serving guide frames 38 and the table tennis rack 5 to rotate, thereby achieving the effect of alternating serving in sequence, turning off the motor 27, and when it is necessary to serve again, turning on the motor 27 again, the motor 27 continues to drive the flip main gear 22 to rotate, the flip main gear 22 continues to drive the two sets of power sub-gears 33 to rotate, the lower power sub-gear 33 drives the lower short shaft 32 to rotate, and the lower short shaft 32 drives the lower fan-shaped teeth 34 to rotate The lower fan-shaped teeth 34 drive the three-toothed plate 30 to move in the opposite direction, the three-toothed plate 30 drives the flip master gear 22 to rotate in the opposite direction, the flip master gear 22 drives the rotating rod 21 to rotate in the opposite direction, the rotating rod 21 drives the flip master gear 23 to rotate in the opposite direction, the flip master gear 23 drives the corresponding serving slave gear 10 to rotate in the opposite direction, the serving slave gear 10 drives the sleeve 11 to rotate in the opposite direction, the sleeve 11 drives another group of serving slave gears 10 to rotate in the opposite direction, the other group of serving slave gears 10 drives the flip master gear 17 to rotate in the opposite direction, the flip master gear 17 drives the rotating rod 16 to rotate in the opposite direction, the rotating rod 16 drives the limiting special-shaped plate 18 and the lever 19 to rotate in the opposite direction, the lever 19 drives the corresponding flip plate 12 to rotate in the opposite direction, and the flip plate 12 drives the rail frame 35 to rotate in the opposite direction,The ball serving guide frame 38 drives the table tennis rack 5 to flip and reset, the second rotating rod 21 continues to rotate in the opposite direction, drives the second limiting shaped plate 24 and the second lever 25 to rotate in the opposite direction, the second lever 25 drives the corresponding flip plate 12 to rotate in the opposite direction, the flip plate 12 drives another set of rail frames 35 to rotate in the opposite direction, and the other set of rail frames 35 drives the table tennis rack 5 to flip and reset through the ball serving guide frame 38. When serving next time, the screw group 37 is rotated to draw out two sets of table tennis racks 5 again, and the table tennis balls are put into the table tennis rack 6 in the two sets of table tennis racks 5 to carry out continuous serving training.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0028] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A table tennis serving machine for sports training, comprising a box (1), wherein an air inlet is provided on a side wall of the box (1), and wherein: A continuous ball serving assembly (2) is rotatably provided on the inner wall of the box (1), a power reciprocating assembly (3) is provided on the outer wall of the box (1), a fixed assembly (4) is rotatably provided on the continuous ball serving assembly (2), a table tennis ball placement rack (5) is slidably provided on the fixed assembly (4), a table tennis ball placement groove (6) is provided on the bottom wall of the box (1), a box door (8) is hingedly provided on the side wall of the box (1), and the continuous ball serving assembly (2) comprises a central rotating shaft (9), a ball serving gear (10), a sleeve (11), a flip plate (12), a second flip assembly (13) and a first flip assembly (14). The flip assembly (14) has two ends of the central rotating shaft (9) fixedly arranged on the inner wall of the box body (1), the ball-serving gear (10) is rotatably arranged on the central rotating shaft (9), the sleeve (11) is rotatably arranged on the central rotating shaft (9), the flip plates (12) are provided with two groups, one group of the flip plates (12) is rotatably arranged on the sleeve (11), and the other group of the flip plates (12) is rotatably arranged on the central rotating shaft (9), the second flip assembly (13) is arranged on one side of the inner wall of the box body (1), and the first flip assembly (14) is arranged on the other side of the inner wall of the box body (1).

2. A table tennis serving machine for sports training according to claim 1, characterized in that: The second flip assembly (13) comprises a fixed vertical plate (15), a rotating rod (16), a flip main gear (17), a limiting shaped plate (18) and a shifting rod (19), wherein the fixed vertical plate (15) is fixedly mounted on the bottom wall of the box body (1), one end of the rotating rod (16) is rotatably mounted on the inner wall of the box body (1), and the other end of the rotating rod (16) is rotatably mounted on the fixed vertical plate (15), the flip main gear (17) is fixedly mounted on the rotating rod (16), the limiting shaped plate (18) is fixedly mounted on the rotating rod (16), and the shifting rod (19) is fixedly mounted on the rotating rod (16).

3. A table tennis serving machine for sports training according to claim 2, characterized in that: The first flip assembly (14) comprises a second fixed vertical plate (20), a second rotating rod (21), a flip master gear (22), a second flip main gear (23), a second limiting shaped plate (24) and a second shifting rod (25), wherein the second fixed vertical plate (20) is fixedly arranged on the bottom wall of the box body (1), one end of the second rotating rod (21) is rotatably arranged on the second fixed vertical plate (20), and the other end of the second rotating rod (21) is rotatably arranged through the side wall of the box body (1), the second flip master gear (22) is fixedly arranged on the end of the second rotating rod (21), the second flip main gear (23) is fixedly arranged on the second rotating rod (21), the second limiting shaped plate (24) is fixedly arranged on the second rotating rod (21), and the second shifting rod (25) is fixedly arranged on the second rotating rod (21).

4. A table tennis serving machine for sports training according to claim 3, characterized in that: The power reciprocating assembly (3) comprises a power box (26), a motor (27), a power main gear (28), a slide rail (29), a three-tooth gear plate (30) and a reciprocating circulation assembly (31), wherein the power box (26) is fixedly arranged on the outer wall of the box body (1), the motor (27) is fixedly arranged on the inner wall of the power box (26), the power main gear (28) is fixedly arranged on the output end of the motor (27), the slide rail (29) is fixedly arranged on the outer wall of the box body (1), the three-tooth gear plate (30) is slidably arranged on the slide rail (29), and the reciprocating circulation assembly (31) is rotatably arranged on the outer wall of the box body (1).

5. A table tennis serving machine for sports training according to claim 4, characterized in that: The reciprocating circulation component (31) comprises a short shaft (32), a power secondary gear (33) and sector teeth (34); the short shaft (32) is rotatably mounted on the outer wall of the box body (1); the power secondary gear (33) is fixedly mounted on the short shaft (32); and the sector teeth (34) are fixedly mounted on the short shaft (32).

6. A table tennis serving machine for sports training according to claim 5, characterized in that: The table tennis rack (5) comprises a rail frame (35), a limiting column (36), a screw group (37) and a serving guide frame (38), wherein one group of the rail frames (35) is rotatably mounted on the sleeve (11), and the other group of the rail frames (35) is rotatably mounted on the central shaft (9). The two groups of the rail frames (35) are respectively fixed on two groups of flip plates (12). The bottom end of the limiting column (36) is fixed on the rail frame (35). The screw group (37) is fixed on the bottom end of the fixing column (36). 7) The bottom end is rotatably mounted on the rail frame (35), the serving guide frame (38) is slidably mounted on the limit column (36), the serving guide frame (38) is threadedly mounted on the screw rod group (37), the serving guide frame (38) is provided with seven serving openings (39), and branch connecting pipes (40) are provided between the seven serving openings (39) and the table tennis ball placement groove (6), and the branch connecting pipes (40) match the size of the table tennis ball placement groove (6).

7. A table tennis serving machine for sports training according to claim 6, characterized in that: The motor (27) is electrically connected to an external power source.

8. A table tennis serving machine for sports training according to claim 7, characterized in that: The serving slave gears (10) are provided with two groups, the two ends of the sleeve (11) are fixedly mounted on the two groups of serving slave gears (10), the three-tooth gear plate (30) is provided with teeth on three sides, one side of the teeth on the three-tooth gear plate (30) is meshedly connected with the overturning main gear (22), the reciprocating circulation assembly (31) is provided with two groups, the two groups of power secondary gears (33) are meshedly connected with the power main gear (28), and the two groups of fan-shaped teeth (34) are meshedly connected with the teeth on the upper and lower sides of the three-tooth gear plate (30).

9. A table tennis serving machine for sports training according to claim 8, characterized in that: The flip master gear 1 (17) is meshedly connected with one set of serving slave gears (10), the limiting shaped plate 1 (18) is in the same plane with one set of flip plates (12), the limiting shaped plate 1 (18) is adapted to one set of flip plates (12), the shifting rod 1 (19) is adapted to one set of flip plates (12), the flip master gear 2 (23) is meshedly connected with another set of serving slave gears (10), the limiting shaped plate 2 (24) is in the same plane with another set of flip plates (12), the limiting shaped plate 2 (24) is adapted to another set of flip plates (12), and the shifting rod 2 (25) is adapted to another set of flip plates (12).

10. A table tennis serving machine for sports training according to claim 9, characterized in that: The box door (8) is transparent, and the table tennis ball placement rack (5) is slidably arranged on the rail frame (35).

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