A ball delivery device for a table tennis intelligent trainer

Abstract

The present invention relates to the technical field of table tennis ball feeding, in particular to a ball feeding device of a table tennis intelligent trainer, which includes a base. The upper end of the base is connected with a housing. The upper end of the housing is clamped with a ball collecting box. The upper end of the housing is screwed with a ball outlet pipe through bolts. The inner cavity of the housing is connected with a ball feeding channel. The bottom end of the inner cavity of the ball collecting box is provided with a long groove. An installation cover is installed outside the long groove. A ball feeding motor is installed on the left side of the inner cavity of the housing. A fixed cover is screwed in the inner cavity of the housing through bolts. The right side of the ball feeding motor is clamped with a ball feeding driving connecting shaft. The structure of the present invention is reasonably designed, convenient for installation and disassembly, beneficial to maintenance, and has a simple structure, low maintenance cost, small device volume, small occupied space, beneficial to improving the stability of ball feeding, convenient for cleaning dust accumulation and foreign matters, and convenient for automatically dealing with abnormal problems of ball jamming, effectively improving the degree of intelligence.

Description

Technical Field

[0001] The present invention relates to the technical field of table tennis ball feeding, and particularly relates to a ball feeding device for a table tennis intelligent coach machine. Background Art

[0002] Table tennis is a popular ball sport in the world. As a lightweight sport for fitness, brain health, stress relief, and sentiment cultivation, it has the characteristics of being easy to start, suitable for all ages, and having a small exercise demand. To meet the needs of table tennis hitting training, table tennis ball feeding machines have emerged on the market, enabling users not only to dispense with the need for a dedicated training partner but also allowing athletes to improve their skills and novices to practice and master techniques, achieving the goal of quickly getting started.

[0003] Currently, various table tennis ball feeding devices have emerged on the market. Most of their structural designs are unreasonable, making assembly and maintenance difficult. Moreover, some table tennis ball feeding devices are too large in size, occupying an unreasonable amount of space, resulting in greater limitations in their use. Most existing table tennis ball feeding devices have the phenomenon of ball jamming, making them extremely inconvenient to use. Additionally, existing devices usually have no automatic countermeasures when ball jamming occurs, with a low level of intelligence. Moreover, when running at high speed, the ball feeding stability of existing devices is generally poor. Also, it is difficult to clean the dust accumulation and foreign objects inside the table tennis ball feeding device, with poor practicality. For this reason, we provide a ball feeding device for a table tennis intelligent coach machine to solve this problem. Summary of the Invention

[0004] The purpose of the present invention is to address the drawbacks existing in the prior art and propose a ball feeding device for a table tennis intelligent coach machine.

[0005] To achieve the above objective, the present invention adopts the following technical solution:

[0006] Design a ball feeding device for a table tennis intelligent coach machine, including a base. The upper end of the base is connected with a housing. The upper end of the housing is snap-connected with a ball collecting box. The upper end of the housing is bolted and screwed with a ball outlet pipe. The inner cavity of the housing is connected with a ball feeding channel. The bottom end of the inner cavity of the ball collecting box is provided with a long groove. An installation cover is installed outside the long groove. A ball feeding motor is installed on the left side of the inner cavity of the housing. The inner cavity of the housing is bolted and screwed with a fixing cover. The right side of the ball feeding motor is snap-connected with a ball feeding driving connection shaft. The ball feeding driving connection shaft is located inside the fixing cover. A ball feeding driving bearing sleeved with the ball feeding driving connection shaft is provided in the inner cavity of the fixing cover. A ball feeding screw through shaft matching the position of the ball feeding driving connection shaft is provided in the inner cavity of the fixing cover. A ball feeding screw is sleeved outside the ball feeding screw through shaft.

[0007] Preferably, shock-absorbing columns are equidistantly connected to the left side of the lower end of the base. The lower ends of the shock-absorbing columns are jointly connected to a shock-absorbing seat, and the upper end of the shock-absorbing seat is connected to the base.

[0008] Preferably, a dust collection box is bolted to the middle of the lower end of the base. A notch is provided at the lower end of the base. A fixing frame matching the position of the notch is bolted to the lower end of the base, and a stainless steel mesh is connected to the lower part of the inner cavity of the fixing frame.

[0009] Preferably, a first mounting seat is bolted to the inner cavity of the housing. A ball-feeding driven bearing is clamped in the inner cavity of the first mounting seat. A ball-feeding driven connecting shaft is movably connected to the inner cavity of the ball-feeding driven bearing, and the left side of the ball-feeding driven connecting shaft is connected to the ball-feeding screw shaft coaxially.

[0010] Preferably, a ball-return spring is sleeved on the right side of the ball-feeding screw shaft coaxially. The left side of the ball-feeding screw shaft coaxially is connected to a ball-feeding ratchet shaft, and the ball-feeding ratchet shaft is located in the inner cavity of the fixed cover. The left side of the ball-feeding ratchet shaft is connected to the ball-feeding driving connecting shaft.

[0011] Preferably, the right side of the ball-feeding driven connecting shaft is connected to a ball-feeding gear. A second mounting seat is bolted to the inner cavity of the housing. A ball-pushing rod bearing is clamped in the inner cavity of the second mounting seat. A ball-pushing rod is connected to the inner cavity of the ball-pushing rod bearing. A ball-pushing rod gear meshing with the ball-feeding gear is connected to the lower part of the outer side of the ball-pushing rod. The upper end of the groove penetrates through the ball-collecting box and extends above it to be connected to a ball-pushing and stirring device.

[0012] Preferably, the outer diameter of the outer ring of the ball-pushing rod gear is larger than that of the outer ring of the ball-feeding gear, and the transmission ratio between the ball-pushing rod gear, the ball-feeding gear, the ball-feeding screw shaft coaxially, and the ball-feeding gear is 1:2.

[0013] Preferably, the ball-pushing and stirring device includes a stirring rod connected to the ball-pushing rod. Ball-collecting cylinders matching the stirring rod are symmetrically arranged at the bottom end of the inner cavity of the ball-collecting box, and an inlet matching the position of the stirring rod is provided on the outer side of the mounting cover.

[0014] The beneficial effects of the ball-feeding device of the table tennis intelligent coach machine proposed by the present invention are as follows:

[0015] One: The present invention is provided with a ball feeding ratchet shaft through the inner cavity of the fixed cover, and is respectively connected with the ball feeding screw shaft and the ball feeding active connecting shaft through the two sides of the ball feeding ratchet shaft, and a ball withdrawal spring is provided on the outer side of the ball feeding screw shaft, so that when the table tennis ball is stuck, the ball feeding screw will be subjected to a force opposite to the ball feeding direction, and then the ball feeding screw squeezes the ball withdrawal spring, and the ball feeding ratchet shaft is separated from the ball feeding screw, so that the ball feeding screw is displaced backward, which is convenient for releasing the abnormal state of the stuck ball, and after the abnormal state is released, the ball feeding screw returns to its original position through the spring force of the ball withdrawal spring, which is convenient for continuing to feed the ball, and is convenient for automatically coping with the abnormal state of the stuck ball, effectively improving the degree of intelligence.

[0016] 2. The present invention screws the first mounting seat together with bolts, and the inner cavity of the first mounting seat clamps the ball-feeding driven bearing. The ball-feeding driven connecting shaft in the inner cavity of the ball-feeding driven bearing is clamped with the through shaft of the ball-feeding screw, which effectively improves the rotation stability of the ball-feeding screw, so that when the device runs quickly, the table tennis ball can be delivered normally, avoiding its working instability, which in turn affects the normal use of the user.

[0017] 3: The lower end of the base of the present invention is screwed to the dust box by bolts, and is also screwed to the fixed frame by bolts. The lower inner cavity of the fixed frame is connected to a stainless steel mesh, so that when foreign matter falls into the dust box as the ball feeding screw rotates, the stainless steel mesh can be set to avoid affecting the ball feeding, and the user can easily disassemble and clean the dust and foreign matter in the dust box, so that the device can always maintain a stable and good operating effect during operation.

[0018] Fourth: The present invention sets the transmission ratio between the ball feeding gear and the ball feeding gear to 1:2, so that when the ball feeding screw moves, one circle of the ball feeding screw will send a table tennis ball into the inner cavity of the ball feeding channel. The ball feeding screw drives the ball pushing rod gear to rotate half a circle through the ball feeding gear, and then the ball pushing rod gear drives the stirring rod to push a ball into the outer shell, so that the device can complete the entire ball feeding action more scientifically and effectively.

[0019] Compared with the existing technology, the structural design of the present invention is reasonable, easy to install and disassemble, and conducive to maintenance. It has a simple structure and low maintenance cost. The device is small in size, occupies little space, is easy to carry and transport, is conducive to improving the stability of ball delivery, and is easy to clean dust accumulation and foreign matter, and is easy to automatically deal with abnormal problems of ball jamming, effectively improving the degree of intelligence. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view structural diagram of a ball delivery device of a table tennis intelligent training machine proposed by the present invention;

[0021] Figure 2 This is a front view cross-sectional structural diagram of a ball delivery device of a table tennis intelligent training machine proposed by the present invention;

[0022] Figure 3 This is a rear cross-sectional structural schematic diagram of a ball delivery device of a table tennis intelligent training machine proposed by the present invention;

[0023] Figure 4 A schematic diagram of the top view of the ball delivery device of a table tennis intelligent training machine proposed by the present invention;

[0024] Figure 5 This is a schematic cross-sectional structural diagram of part of the device proposed in the present invention.

[0025] In the figure: base 1, shell 2, ball collecting box 3, ball outlet pipe 4, ball delivery channel 5, long groove 6, mounting cover 7, ball delivery motor 8, fixed cover 9, ball delivery active connecting shaft 10, ball delivery active bearing 11, ball delivery screw shaft 12, ball delivery screw 13, shock absorbing column 14, shock absorbing seat 15, dust collecting box 16, fixed frame 17, stainless steel net 18, first mounting seat 19, ball delivery driven bearing 20, ball delivery driven connecting shaft 21, ball withdrawal spring 22, ball delivery ratchet shaft 23, ball delivery gear 24, second mounting seat 25, ball shifting rod bearing 26, ball shifting rod 27, ball shifting rod gear 28, ball shifting stirring device 29, stirring rod 291, ball collecting cylinder 292, and entrance 293. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0027] Reference Figures 1-5 A ball delivery device for a table tennis intelligent trainer comprises a base 1, the upper end of the base 1 is connected to a shell 2, the upper end of the shell 2 is clamped with a ball collecting box 3, the left side of the lower end of the base 1 is equidistantly connected with a shock absorbing column 14, the lower end of the shock absorbing column 14 is commonly connected to a shock absorbing seat 15, the upper end of the shock absorbing seat 15 is connected to the base 1, so as to reduce the vibration force generated when the ball delivery motor 8 is working, a dust collecting box 16 is screwed with bolts in the middle of the lower end of the base 1, a notch is provided at the lower end of the base 1, a fixing frame 17 matching the position of the notch is screwed with bolts at the lower end of the base 1, and a stainless steel net 18 is connected to the lower part of the inner cavity of the fixing frame 17, so as to collect dust and foreign matter that fall into the shell 2 along with the table tennis ball, and is easy to install and disassemble, and convenient for users to clean.

[0028] The upper end of the shell 2 is screwed with a ball outlet tube 4 by bolts, the inner cavity of the shell 2 is connected to a ball delivery channel 5, the bottom end of the inner cavity of the ball collection box 3 is provided with a long groove 6, and a mounting cover 7 is installed on the outside of the long groove 6. A ball delivery motor 8 is installed on the left side of the inner cavity of the shell 2, and a fixed cover 9 is screwed with bolts in the inner cavity of the shell 2. The right side of the ball delivery motor 8 is clamped with a ball delivery active connecting shaft 10, and the ball delivery active connecting shaft 10 is located in the inner cavity of the fixed cover 9. The inner cavity of the fixed cover 9 is provided with a ball delivery active bearing 11 sleeved with the ball delivery active connecting shaft 10, and the inner cavity of the fixed cover 9 is provided with a ball delivery active connecting shaft 10. A ball-delivering screw shaft 12 is matched in position, a ball-delivering screw 13 is sleeved on the outer side of the ball-delivering screw shaft 12, a first mounting seat 19 is screwed to the inner cavity of the outer shell 2 through bolts, a ball-delivering driven bearing 20 is clamped to the inner cavity of the first mounting seat 19, a ball-delivering driven connecting shaft 21 is movably connected to the inner cavity of the ball-delivering driven bearing 20, and the left side of the ball-delivering driven connecting shaft 21 is connected to the ball-delivering screw shaft 12, so as to increase the stability of the ball-delivering screw 13 driven by the ball-delivering screw shaft 12 to rotate, and prevent the ball-delivering mechanism from being unstable when the device is running quickly, thereby affecting normal use.

[0029] A ball-retracting spring 22 is sleeved on the right side of the ball-feeding screw shaft 12, and a ball-feeding ratchet shaft 23 is connected to the left side of the ball-feeding screw shaft, and the ball-feeding ratchet shaft 23 is located in the inner cavity of the fixed cover 9, and the left side of the ball-feeding ratchet shaft 23 is connected to the ball-feeding active connecting shaft 10, so that when the table tennis ball is stuck in the corresponding position of the ball-feeding channel 5 and the ball-feeding screw 13, the ball-feeding screw 13 will be subjected to a force opposite to the ball-feeding direction. At this time, the ball-feeding ratchet shaft 23 in the inner cavity of the fixed cover 9 is disengaged from the ball-feeding screw 13, and at the same time, the ball-feeding screw 13 compresses the ball-retracting spring 22, so that the ball-feeding screw 13 is displaced backward, so that the stuck ball falls into the ball-feeding position outside the ball-feeding screw 13, and the ball-sticking abnormality is resolved.

[0030] A ball sending gear 24 is connected to the right side of the ball sending driven connecting shaft 21, a second mounting seat 25 is screwed to the inner cavity of the housing 2 through bolts, a ball shifting rod bearing 26 is clamped in the inner cavity of the second mounting seat 25, a ball shifting rod 27 is connected to the inner cavity of the ball shifting rod bearing 26, a ball shifting rod 27 is connected to the lower outer side of the ball shifting rod 27, a ball shifting rod gear 28 meshing with the ball sending gear 24 is connected, the upper end of the groove passes through the ball collecting box 3 and extends to the upper part thereof, a ball shifting stirring device 29 is connected, so that when the ball sending driven connecting shaft 21 drives the ball sending gear 24 to rotate, the ball shifting rod gear 28 and the ball shifting rod 27 are driven to rotate, thereby The ball-moving rod 27 stirs the table tennis ball into the inner cavity of the shell through the ball-moving stirring device 29, which is convenient for use. The outer ring diameter of the ball-moving rod gear 28 is larger than the outer ring diameter of the ball-feeding gear 24, and the transmission ratio between the ball-moving rod gear 28, the ball-feeding gear 24, the ball-feeding screw shaft 12, and the ball-feeding gear 24 is 1:2, so that one rotation of the ball-feeding screw 13 will send one table tennis ball into the inner cavity of the ball-feeding channel 5, and one rotation of the ball-moving stirring device 29 will move one ball into the shell 2. Therefore, the transmission ratio of the two gears is set to 2:1, so that the entire ball-feeding action can be completed more scientifically and effectively.

[0031] The ball-moving and stirring device 29 includes a stirring rod 291 connected to the ball-moving rod 27, a ball collecting tube 292 matching the same is symmetrically arranged at the bottom of the inner cavity of the ball collecting box 3, and an entry port 293 matching the position of the stirring rod 291 is arranged on the outer side of the mounting cover 7, so as to facilitate the stirring rod 291 to effectively stir the table tennis balls and collect them into the outer shell 2.

[0032] Working principle: When the present invention is used, the device is moved to a table tennis room or other sports venues, and the device is placed in an appropriate position. A number of table tennis balls are placed in the ball collecting tube 292 at the bottom of the inner cavity of the ball collecting box 3, and the table tennis ball feeding device is powered on. The switch of the ball feeding motor 8 is turned on through an external switch. The ball feeding motor 8 drives the ball feeding screw shaft 12, the ball feeding ratchet shaft 23, and the ball feeding screw 13 to rotate at the same speed through the ball feeding active connecting shaft 10. At the same time, the ball feeding screw shaft 12 drives the ball feeding gear 24 to rotate at the same speed through the ball feeding driven connecting shaft 21. Since the transmission ratio between the ball feeding gear 24 and the ball deflector gear 28 is 2:1 (the ball feeding gear 24 rotates 2 circles, the ball deflector gear 28 rotates 1 circle), the ball deflector gear 28 rotates at half the speed of the ball feeding motor 8, and the stirring rod 291 is driven to rotate together through the ball deflector 27. The table tennis balls in the ball collecting cylinder 292 are continuously stirred by the stirring rod 291 and fall onto the surface of the ball feeding screw 13 through the inlet 293 on the outer side of the mounting cover 7. At the same time, the movement of the ball feeding screw 13 drives the table tennis balls to move to the ball feeding channel 5 one by one, and the table tennis balls are continuously stirred by the stirring rod 291 and fall onto the surface of the ball feeding screw 13 through the inlet 293 on the outer side of the mounting cover 7. The ball delivery direction is changed at the ball channel 5 to achieve the purpose of vertical ball delivery, so that the table tennis ball can fly vertically upward from the ball outlet tube 4 and then be transmitted to the next device, which is convenient for users to perform table tennis training. In the operation process, if dust or foreign matter falls into the inner cavity of the shell 2 with the table tennis ball, the foreign matter will fall into the inner cavity of the dust box 16 of the base as the ball delivery screw 13 rotates. The second mounting seat 25 is provided, and the inner side of the second mounting seat 25 is connected with a stainless steel net 18, thereby avoiding and affecting the ball delivery, and the user can conveniently disassemble and clean the dust and foreign matter in the dust box 16. When the ping-pong ball is stuck in the ball delivery channel 5 at the position corresponding to the ball delivery screw 13, the ball delivery screw 13 will be subjected to a force opposite to the ball delivery direction. At this time, the ball delivery ratchet shaft 23 in the inner cavity of the fixed cover 9 is separated from the ball delivery screw 13, and at the same time, the ball delivery screw 13 squeezes the ball withdrawal spring 22, thereby causing the ball withdrawal spring 22 to be compressed, causing the ball delivery screw 13 to move backward, causing the stuck ball to fall into the ball delivery position outside the ball delivery screw 13, eliminating the ball stuck abnormality, and after the ball stuck is resolved, due to the spring tension of the ball withdrawal spring 22, the ball delivery screw 13 returns to its original position and continues to deliver the ball.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ball-feeding device for a table tennis intelligent trainer, comprising a base (1), characterized in that, the upper end of the base (1) is connected with a housing (2), the upper end of the housing (2) is snap-connected with a ball-collecting box (3), the upper end of the housing (2) is bolted and screwed with a ball-out tube (4), the inner cavity of the housing (2) is connected with a ball-feeding channel (5), a long groove (6) is arranged at the bottom end of the inner cavity of the ball-collecting box (3), a mounting cover (7) is installed outside the long groove (6), a ball-feeding motor (8) is installed on the left side of the inner cavity of the housing (2), the inner cavity of the housing (2) is bolted and screwed with a fixing cover (9), the right side of the ball-feeding motor (8) is snap-connected with a ball-feeding driving connecting shaft (10), the ball-feeding driving connecting shaft (10) is located in the inner cavity of the fixing cover (9), a ball-feeding driving bearing (11) sleeved on the ball-feeding driving connecting shaft (10) is arranged in the inner cavity of the fixing cover (9), a ball-feeding screw through shaft (12) matching the position of the ball-feeding driving connecting shaft (10) is arranged in the inner cavity of the fixing cover (9), and a ball-feeding screw (13) is sleeved outside the ball-feeding screw through shaft (12); the left side of the lower end of the base (1) is equidistantly connected with shock-absorbing columns (14), the lower ends of the shock-absorbing columns (14) are jointly connected with a shock-absorbing seat (15), and the upper end of the shock-absorbing seat (15) is connected with the base (1); a dust-collecting box (16) is bolted and screwed in the middle of the lower end of the base (1), a notch is arranged at the lower end of the base (1), a fixing frame (17) matching the position of the notch is bolted and screwed at the lower end of the base (1), and a stainless steel mesh (18) is connected to the lower part of the inner cavity of the fixing frame (17); a first mounting seat (19) is bolted and screwed in the inner cavity of the housing (2), a ball-feeding driven bearing (20) is snap-connected in the inner cavity of the first mounting seat (19), a ball-feeding driven connecting shaft (21) is movably connected in the inner cavity of the ball-feeding driven bearing (20), and the left side of the ball-feeding driven connecting shaft (21) is connected with the ball-feeding screw through shaft (12); a ball-return spring (22) is sleeved on the right side of the ball-feeding screw through shaft (12), a ball-feeding ratchet shaft (23) is connected to the left side of the ball-feeding screw through shaft (12), and the ball-feeding ratchet shaft (23) is located in the inner cavity of the fixing cover (9), and the left side of the ball-feeding ratchet shaft (23) is connected with the ball-feeding driving connecting shaft (10).

2. The ball-feeding device for a table tennis intelligent trainer according to claim 1, characterized in that, the right side of the ball-feeding driven connecting shaft (21) is connected with a ball-feeding gear (24), a second mounting seat (25) is bolted and screwed in the inner cavity of the housing (2), a ball-pushing rod bearing (26) is snap-connected in the inner cavity of the second mounting seat (25), a ball-pushing rod (27) is connected in the inner cavity of the ball-pushing rod bearing (26), a ball-pushing rod gear (28) meshing with the ball-feeding gear (24) is connected to the lower part of the outside of the ball-pushing rod (27), and the upper end of the groove penetrates through the ball-collecting box (3) and extends above it to be connected with a ball-pushing and stirring device (29).

3. A table tennis intelligent training machine ball delivery device according to claim 2, It is characterized in that The outer ring diameter of the ball-moving lever gear (28) is larger than the outer ring diameter of the ball-delivering gear (24), and the transmission ratio between the ball-moving lever gear (28) and the ball-delivering gear (24) is 1:

2.

4. A table tennis intelligent training machine ball delivery device according to claim 3, It is characterized in that The ball-moving stirring device (29) comprises a stirring rod (291) connected to the ball-moving rod (27), a ball collecting cylinder (292) matching the ball collecting cylinder (292) is symmetrically arranged at the bottom end of the inner cavity of the ball collecting box (3), and an inlet (293) matching the position of the stirring rod (291) is arranged on the outer side of the mounting cover (7).

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