Table tennis ball serving device

Abstract

The invention discloses a table tennis ball dispenser, and relates to the field of ball dispensers. The table tennis ball serving device comprises a support unit, a ball box unit and a ball serving unit, the ball box unit comprises a ball box frame and a ball box body, the ball box frame is installed on the top of the support unit, the ball box body is inserted into the ball box frame, and the ball serving unit comprises a ball outlet gun muzzle, two ball serving cylinders and a ball inlet motor. The ball outlet muzzle and the two ball serving cylinders are all installed on the top of the support unit, the two ball serving cylinders are symmetrically installed between the ball outlet muzzle and the ball box frame, and the ball inlet motor is installed on the ball box frame. According to the table tennis ball serving device, table tennis balls can be quickly pushed into the ball outlet muzzle through the two ball serving cylinders and are thrown outwards through the ball outlet muzzle, meanwhile, the support unit can drive the ball box frame and the ball outlet muzzle to conduct angle rotation in the horizontal direction and angle deflection in the vertical direction, and adjustment of the throwing angle of the ball outlet muzzle is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of ball servers, in particular to a table tennis ball server. Background Art

[0002] In the field of table tennis training, traditional serving devices often have many limitations.

[0003] Most existing ball servers can only serve at fixed angles. For example, some basic models can only serve straight ahead, and cannot simulate the opponent's variable return angles in actual combat, such as sidespin balls, high lobs and other returns at different angles. This makes the athletes' training lack of authenticity and comprehensiveness. In addition, some ball servers have complex structures and use a combination of multiple components such as gear transmission to achieve angle adjustment, which not only increases the weight and cost of the equipment, but also is prone to malfunctions such as jamming, and has high maintenance costs. At the same time, it makes the structure bulky and inconvenient to carry. Therefore, the present application proposes a table tennis ball server. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a table tennis server that solves the problem that some existing servers have complex structures and use a combination of multiple components such as gear transmission to achieve angle adjustment, which not only increases the weight and cost of the equipment, but also makes it prone to malfunctions such as jamming, and has high maintenance costs. At the same time, it makes the structure bulky and inconvenient to carry.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A table tennis ball server, comprising: bracket unit; The ball box unit includes a ball box frame and a ball box body. The ball box frame is mounted on the top of the bracket unit. The interior of the ball box body can accommodate multiple table tennis balls, and the ball box body is inserted into the interior of the ball box frame. The ball-serving unit comprises a ball-discharging muzzle, two ball-serving barrels, and a goal-scoring motor. The ball-discharging muzzle and the two ball-serving barrels are mounted on the top of the bracket unit, and the two ball-serving barrels are symmetrically mounted between the ball-discharging muzzle and the ball box frame. The goal-scoring motor is mounted on the ball box frame. A ball outlet is provided at the bottom of the ball box body for allowing a single ping-pong ball to be ejected. The ping-pong ball in the ball box body enters the ball box frame through the ball outlet, and the goal motor drives the ping-pong ball in the ball box frame to between the two ball-serving barrels. The two ball-serving barrels can be used to quickly push the ping-pong ball toward the ball outlet muzzle and throw it out through the ball outlet muzzle. At the same time, the bracket unit can drive the ball box frame and the ball outlet muzzle to rotate horizontally and deflect vertically, so as to adjust the projection angle of the ball outlet muzzle.

[0006] Preferably, the bracket unit includes a bottom bracket, a rotating support seat and a flip support plate, the rotating support seat is rotatably arranged on the top of the bottom bracket, and one end of the rotating support seat is rotatably connected to the flip support plate through a hinge.

[0007] Preferably, a rotating motor is fixedly installed on the top of the bottom bracket, an output end of the rotating motor is fixedly connected to a first rotating shaft, and a top end of the first rotating shaft is fixedly connected to a rotating support seat.

[0008] Preferably, a flip motor is fixedly installed on the top of the rotating support seat, the output end of the flip motor is fixedly connected to the second rotating shaft, the end of the second rotating shaft is fixedly sleeved with a first crank, the other end of the first crank is rotatably connected to the second crank, and the top end of the second crank is rotatably connected to the flip support plate.

[0009] Preferably, the top of the ball box frame is provided with a box entrance, and the top of the ball box frame is rotatably connected to a limit block through a damping shaft, the ball box body can be inserted into the ball box frame through the box entrance, and the limit block can be rotated to make it abut against the top of the ball box body, and a ball entrance is provided at the bottom of the ball box frame near the two ball barrels.

[0010] Preferably, a through hollow channel is axially opened inside the ball outlet muzzle, and the table tennis ball can roll along the hollow channel.

[0011] Preferably, a ball-serving motor is fixedly installed at the bottom of the two ball-serving barrels, and the ball-serving motor is embedded between the flip support plate and the interior of the ball-serving barrel. An annular groove is provided on the outer ring surface of the ball-serving barrel, and a plurality of arc-shaped edges are provided on the inner wall of the annular groove, and the plurality of arc-shaped edges are arranged in a circular array.

[0012] Preferably, the output end of the goal motor is fixedly connected to the third rotating shaft, the output end of the third rotating shaft is fixedly sleeved with a third crank, the bottom end of the third crank is rotatably connected to the fourth crank, a ball bolt is slidably provided on the inner bottom wall of the ball box frame, and the bottom end of the fourth crank is connected to the ball bolt.

[0013] Preferably, a movable groove that penetrates inside and outside is opened on the outer side of the ball box frame, and a connecting rod is installed on the end of the fourth crank. The connecting rod passes through the movable groove and is fixedly connected to the outer side of the ball bolt.

[0014] The present invention discloses a table tennis ball server, which has the following beneficial effects: 1. The table tennis ball server has a ball outlet at the bottom of the ball box body for allowing a single table tennis ball to be ejected. The table tennis ball in the ball box body enters the ball box frame through the ball outlet, and a goal-scoring motor drives the table tennis ball in the ball box frame between two ball-serving barrels. The two ball-serving barrels can quickly push the table tennis ball toward the ball outlet muzzle and eject it outward through the ball outlet muzzle. At the same time, the bracket unit can drive the ball box frame and the ball outlet muzzle to rotate horizontally and deflect vertically to adjust the projection angle of the ball outlet muzzle. The overall structure is integrated, the size is small, and it is easy to carry.

[0015] 2. When the horizontal serving angle of the table tennis ball server needs to be adjusted, the rotary motor is controlled to start, and the output end of the rotary motor drives the first rotating shaft to rotate, and the first rotating shaft drives the rotating support seat to rotate on the top of the bottom bracket, thereby realizing the horizontal angle rotation of the ball discharge muzzle.

[0016] 3. When the vertical serving angle of the table tennis server needs to be adjusted, the flip motor is controlled to start, the output end of the flip motor drives the second rotating shaft to rotate, the second rotating shaft drives the first crank to rotate, the first crank drives the second crank to move, and the top end of the second crank drives the flip support plate to rotate around the hinge with the rotating support seat, thereby realizing the angular deflection of the ball discharge muzzle in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is the second schematic diagram of the overall structure of the present invention; Figure 3 For the present invention Figure 1 A magnified schematic diagram of part A in FIG; Figure 4 For the present invention Figure 1 A magnified schematic diagram of part B in FIG. Figure 5 For the present invention Figure 2 Enlarged schematic diagram of part C in FIG.

[0019] In the figure: 1. bracket unit; 11. bottom bracket; 12. rotating support seat; 13. flip support plate; 14. rotating motor; 141. first rotating shaft; 15. flip motor; 151. second rotating shaft; 152. first crank; 153. second crank; 2. ball box unit; 21. ball box frame; 211. box inlet; 212. limit block; 22. ball box body; 3. serving unit; 31. ball outlet muzzle; 32. serving barrel; 321. annular groove; 322. arc-shaped edge; 33. goal motor; 331. third rotating shaft; 332. third crank; 333. fourth crank; 334. movable groove; 335. ball bolt. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] The present invention provides a table tennis ball server that solves the problem of some existing servers being complex in structure and using multiple components such as gear transmission to achieve angle adjustment. This not only increases the weight and cost of the device, but also makes it prone to malfunctions such as jamming, resulting in high maintenance costs, and making the structure bulky and inconvenient to carry. A ball outlet is provided at the bottom of the ball box body 22 to allow a single table tennis ball to be ejected. The table tennis ball in the ball box body 22 enters the ball box frame 21 through the outlet, and a goal motor 33 drives the table tennis ball in the ball box frame 21 between two ball ejection barrels 32. The two ball ejection barrels 32 can quickly push the table tennis ball toward the ball ejection barrel 31 and eject it outward through the ball ejection barrel 31. Simultaneously, the bracket unit 1 can drive the ball box frame 21 and the ball ejection barrel 31 to rotate horizontally and deflect vertically to adjust the ejection angle of the ball ejection barrel 31. The overall structure is integrated, compact, and easy to carry.

[0022] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] The embodiment of the invention discloses a table tennis serving device.

[0024] According to the attached Figure 1-5 As shown, including: Bracket unit 1; The ball box unit 2 includes a ball box frame 21 and a ball box body 22. The ball box frame 21 is mounted on the top of the bracket unit 1. The interior of the ball box body 22 can hold multiple table tennis balls, and the ball box body 22 is inserted into the interior of the ball box frame 21. The ball-serving unit 3 includes a ball-discharging muzzle 31, two ball-serving barrels 32, and a goal-scoring motor 33. The ball-discharging muzzle 31 and the two ball-serving barrels 32 are all mounted on the top of the bracket unit 1, and the two ball-serving barrels 32 are symmetrically mounted between the ball-discharging muzzle 31 and the ball-box frame 21. The goal-scoring motor 33 is mounted on the ball-box frame 21. The bottom of the ball box body 22 is provided with a ball outlet that allows a single ping-pong ball to be ejected. The ping-pong ball in the ball box body 22 enters the ball box frame 21 through the ball outlet, and the goal motor 33 drives the ping-pong ball in the ball box frame 21 to between the two ball serving barrels 32. The two ball serving barrels 32 can be used to quickly push the ping-pong ball toward the ball outlet muzzle 31 and throw it out through the ball outlet muzzle 31. At the same time, the bracket unit 1 can drive the ball box frame 21 and the ball outlet muzzle 31 to rotate horizontally and deflect vertically, so as to adjust the projection angle of the ball outlet muzzle 31.

[0025] Furthermore, the bracket unit 1 includes a bottom bracket 11, a rotating support seat 12 and a flip support plate 13. The rotating support seat 12 is rotatably set on the top of the bottom bracket 11, and one end of the rotating support seat 12 is rotatably connected to the flip support plate 13 through a hinge.

[0026] Furthermore, a rotating motor 14 is fixedly installed on the top of the bottom bracket 11 , an output end of the rotating motor 14 is fixedly connected to a first rotating shaft 141 , and a top end of the first rotating shaft 141 is fixedly connected to the rotating support seat 12 .

[0027] The rotating motor 14 integrated in the bottom bracket 11 drives the rotating support seat 12 to achieve 360° horizontal rotation through the first rotating shaft 141, so that the server can simulate incoming balls from different directions, such as serving from the forehand position, backhand position or different positions in the middle, allowing athletes to adapt to various actual combat scenarios and improve the comprehensiveness of training.

[0028] Furthermore, a flip motor 15 is fixedly installed on the top of the rotating support seat 12, and the output end of the flip motor 15 is fixedly connected to the second rotating shaft 151, and the end of the second rotating shaft 151 is fixedly sleeved with a first crank 152, and the other end of the first crank 152 is rotatably connected to the second crank 153, and the top end of the second crank 153 is rotatably connected to the flip support plate 13.

[0029] A double-crank slider structure consisting of a first crank 152 and a second crank 153 is driven by a tilt motor 15 to achieve continuous pitch adjustment. This design allows the server to launch balls at different heights, such as flat shots and high tosses, meeting athletes' training needs for different arcs and enhancing targeted training.

[0030] Abandoning the traditional gear set, the low-friction bearing design is adopted to reduce the angle adjustment response time, which can quickly and accurately adjust the serving angle and improve the efficiency and fluency of training.

[0031] Furthermore, a box entrance 211 is provided at the top of the ball box frame 21, and the top of the ball box frame 21 is connected to a limit block 212 by rotating the damping shaft. The ball box body 22 can be inserted into the ball box frame 21 through the box entrance 211. The limit block 212 is rotated to make it collide with the top of the ball box body 22, and a ball entrance is provided at the bottom of the ball box frame 21 near the two ball barrels 32.

[0032] The ball box body 22 and the ball box frame 21 can be disassembled and assembled without tools through the limit block 212, which increases the amount of balls loaded at a time, greatly reduces the number of times the balls are replenished, extends the single training time, and improves the training efficiency.

[0033] Furthermore, a hollow passage is axially opened inside the ball outlet port 31, and the table tennis ball can roll along the hollow passage.

[0034] Furthermore, a ball-serving motor is fixedly installed at the bottom of each of the two ball-serving barrels 32, and the ball-serving motor is embedded between the flip support plate 13 and the interior of the ball-serving barrel 32. An annular groove 321 is provided on the outer surface of the ball-serving barrel 32, and a plurality of arc-shaped ridges 322 are provided on the inner wall of the annular groove 321, and the plurality of arc-shaped ridges 322 are arranged in a circular array.

[0035] The two serving barrels 32 and the ball discharge nozzle 31 form an isosceles triangle, shortening the serving response cycle and enabling rapid and continuous serving, thereby increasing the intensity and rhythm of training. The serving motor, built into the flip support plate 13, generates friction through the curved edges 322 on the inner wall of the annular groove 321. This high initial velocity simulates the varying speeds of incoming balls in actual combat, allowing athletes to adapt to various intensities of return.

[0036] Furthermore, the output end of the goal motor 33 is fixedly connected to the third rotating shaft 331, the output end of the third rotating shaft 331 is fixedly sleeved with the third crank 332, the bottom end of the third crank 332 is rotatably connected to the fourth crank 333, and a ball bolt 335 is slidably provided on the inner bottom wall of the ball box frame 21, and the bottom end of the fourth crank 333 is connected to the ball bolt 335.

[0037] Furthermore, a movable groove 334 is opened on the outside of the ball box frame 21 and is connected to the outside of the ball box frame 21. A connecting rod is installed on the end of the fourth crank 333. The connecting rod passes through the movable groove 334 and is fixedly connected to the outside of the ball bolt 335.

[0038] The goal motor 33 drives the third crank 332 and the fourth crank 333, which can drive the ball bolt 335 to make reciprocating linear motion on the inner bottom wall of the ball box frame 21, achieving a single accurate ball delivery, ensuring the stability and accuracy of the serve, and avoiding the occurrence of ball jamming failures.

[0039] After the athlete places a ping-pong ball into the box body 22, the player inserts the box body 22 into the box frame 21 through the box inlet 211. The player then rotates the stopper 212 so that it abuts against the top of the box body 22, completing the installation of the box. When serving, the ball outlet at the bottom of the box body 22 allows a single ping-pong ball to be ejected and enter the box frame 21.

[0040] The goal motor 33 is activated, and the third rotating shaft 331 at its output end drives the third crank 332 to rotate. The third crank 332 drives the fourth crank 333 to move. The connecting rod at the end of the fourth crank 333 moves within the moving groove 334, thereby driving the ball bolt 335 to slide on the bottom wall of the ball box frame 21. The movement of the ball bolt 335 drives the table tennis ball in the ball box frame 21 to between the two ball barrels 32.

[0041] The serving motors at the bottom of the two serving cylinders 32 are activated, transmitting power to the cylinders 32. The multiple curved ridges 322 on the inner wall of the annular groove 321 on the outer surface of the cylinders 32 come into contact with the ping-pong ball, generating friction. This friction propels the ball rapidly toward the ejection nozzle 31. The ball rolls along the axially extending hollow channel within the ejection nozzle 31, ultimately being released through the ejection nozzle 31, completing the serve.

[0042] When the horizontal serving angle needs to be adjusted, the rotating motor 14 is controlled to start, and the output end of the rotating motor 14 drives the first rotating shaft 141 to rotate, and the first rotating shaft 141 drives the rotating support seat 12 to rotate on the top of the bottom bracket 11, thereby realizing the horizontal angle rotation of the ball discharge muzzle 31.

[0043] When the vertical launch angle needs to be adjusted, the flip motor 15 is activated. The output end of the flip motor 15 drives the second rotating shaft 151 to rotate, which in turn drives the first crank 152 to rotate. The first crank 152 drives the second crank 153 to move. The top end of the second crank 153 drives the flip support plate 13 to rotate about the hinge with the rotating support base 12, thereby achieving the vertical angle deflection of the ball discharge muzzle 31. By adjusting the horizontal and vertical angles, the launch angle of the ball discharge muzzle 31 can be precisely adjusted to meet different training needs.

[0044] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A table tennis ball server, characterized in that: include: Bracket unit (1); A ball box unit (2) comprising a ball box frame (21) and a ball box body (22), wherein the ball box frame (21) is mounted on the top of the bracket unit (1), a plurality of table tennis balls can be placed inside the ball box body (22), and the ball box body (22) is plugged into the ball box frame (21); A ball-serving unit (3), comprising a ball-discharging port (31), two ball-serving barrels (32) and a goal-scoring motor (33), wherein the ball-discharging port (31) and the two ball-serving barrels (32) are both mounted on the top of the bracket unit (1), and the two ball-serving barrels (32) are symmetrically mounted between the ball-discharging port (31) and the ball box frame (21), and the goal-scoring motor (33) is mounted on the ball box frame (21); A ball outlet for allowing a single table tennis ball to be ejected is provided at the bottom of the ball box body (22). The table tennis ball in the ball box body (22) enters the ball box frame (21) through the ball outlet, and the goal motor (33) drives the table tennis ball in the ball box frame (21) to between the two ball-shooting barrels (32). The two ball-shooting barrels (32) can be used to quickly push the table tennis ball toward the ball outlet port (31) and eject the ball through the ball outlet port (31). At the same time, the bracket unit (1) can drive the ball box frame (21) and the ball outlet port (31) to rotate in the horizontal direction and deflect in the vertical direction, thereby adjusting the projection angle of the ball outlet port (31).

2. A table tennis ball server according to claim 1, characterized in that: The bracket unit (1) comprises a bottom bracket (11), a rotating support seat (12) and a flip support plate (13); the rotating support seat (12) is rotatably arranged on the top of the bottom bracket (11); one end of the rotating support seat (12) is rotatably connected to the flip support plate (13) via a hinge.

3. A table tennis ball server according to claim 2, characterized in that: A rotating motor (14) is fixedly mounted on the top of the bottom bracket (11); an output end of the rotating motor (14) is fixedly connected to a first rotating shaft (141); and a top end of the first rotating shaft (141) is fixedly connected to the rotating support seat (12).

4. A table tennis ball server according to claim 2, characterized in that: A flip motor (15) is fixedly mounted on the top of the rotating support seat (12); an output end of the flip motor (15) is fixedly connected to a second rotating shaft (151); an end of the second rotating shaft (151) is fixedly sleeved with a first crank (152); the other end of the first crank (152) is rotatably connected to a second crank (153); and a top end of the second crank (153) is rotatably connected to the flip support plate (13).

5. A table tennis ball server according to claim 1, characterized in that: The top of the ball box frame (21) is provided with a box inlet (211), and the top of the ball box frame (21) is rotatably connected to a limit block (212) via a damping shaft. The ball box body (22) can be inserted into the ball box frame (21) through the box inlet (211), and the limit block (212) can be rotated to make it contact with the top of the ball box body (22). The bottom of the ball box frame (21) is provided with a ball inlet near the two ball serving barrels (32).

6. A table tennis ball server according to claim 1, characterized in that: A hollow passage is axially opened inside the ball outlet port (31), and the table tennis ball can roll along the hollow passage.

7. A table tennis ball server according to claim 1, characterized in that: A ball-serving motor is fixedly mounted on the bottom of each of the two ball-serving barrels (32), and the ball-serving motor is embedded between the flip support plate (13) and the interior of the ball-serving barrel (32). An annular groove (321) is provided on the outer surface of the ball-serving barrel (32), and a plurality of arc-shaped ridges (322) are provided on the inner wall of the annular groove (321), and the plurality of arc-shaped ridges (322) are arranged in a circular array.

8. A table tennis ball server according to claim 1, characterized in that: The output end of the ball-forming motor (33) is fixedly connected to a third rotating shaft (331), the output end of the third rotating shaft (331) is fixedly sleeved with a third crank (332), the bottom end of the third crank (332) is rotatably connected to a fourth crank (333), a ball bolt (335) is slidably provided on the inner bottom wall of the ball box frame (21), and the bottom end of the fourth crank (333) is connected to the ball bolt (335).

9. A table tennis ball server according to claim 8, characterized in that: The outer side of the ball box frame (21) is provided with a movable groove (334) that penetrates inside and outside. A connecting rod is installed at the end of the fourth crank (333). The connecting rod passes through the movable groove (334) and is fixedly connected to the outer side of the ball bolt (335).

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