A waterwheel-type ball-jamming-proof ball-delivering device and method for a ball-serving machine

Abstract

The present invention belongs to a training auxiliary equipment for sports, and discloses a waterwheel type ball-stuck prevention ball-delivering device and method for a ball-serving machine, wherein the ball-delivering device comprises a base, a driving device, a waterwheel dial mechanism and a limiting mechanism, wherein the base is provided with a goal entrance and a ball outlet for a table tennis ball to pass through; the base is provided with a ballway for a table tennis ball to pass through, and the ballway connects the goal entrance and the ball outlet; the driving device is arranged on the base, and the driving device drives the waterwheel dial mechanism to rotate, and the waterwheel dial mechanism is used to dial or jam the table tennis ball, and the limiting mechanism is arranged on the base; when the waterwheel dial mechanism contacts the limiting mechanism, the limiting mechanism is dialed to limit the table tennis ball, and when there is no contact, the limiting mechanism rebounds and resets. The structure of the device is simple, the driving device drives the waterwheel dial mechanism to deliver the ball, and the waterwheel dial mechanism has less force acting on the table tennis ball, thereby reducing the probability of squeezing the ball during the delivery process; the limiting mechanism can prevent the table tennis ball from being piled up and jammed during the delivery process, thereby realizing orderly and smooth ball delivery.

Description

Technical Field

[0001] The invention belongs to auxiliary training equipment for sports, and in particular relates to a waterwheel-type ball-jamming prevention ball-feeding device and method for a ball-serving machine. Background Art

[0002] At present, with the development of the table tennis industry, table tennis serving machines are becoming more and more common in daily life, and their functions are becoming increasingly powerful. However, among the numerous serving machines, "ball jamming" has become a pain point for many serving machines. Due to the uncertainty of the table tennis ball entering the lane (influencing factors include time, state, and position, etc.), the ball delivery device may "kill" the table tennis ball in the lane during the process of delivering the table tennis ball, flatten the table tennis ball, or cause the serving machine to trigger a protection program and stop working. Therefore, a new technology is needed to solve the problem of table tennis balls being easily jammed during the delivery process in the prior art. Summary of the invention

[0003] In order to solve the above problems in the prior art, the present invention provides a waterwheel-type anti-ball jamming ball feeding device for a ball serving machine, which makes the table tennis ball feeding smoother; another purpose of the present invention is to provide a waterwheel-type anti-ball jamming ball feeding method for a ball serving machine.

[0004] The present invention adopts the following technical solutions:

[0005] A waterwheel-type ball-jamming-proof ball-feeding device for a ball-serving machine comprises a base, a driving device, a waterwheel dial mechanism and a limiting mechanism, wherein the base is provided with a goal hole and a ball outlet for a table tennis ball to pass through; the base is provided with a ball lane for a table tennis ball to pass through, and the ball lane connects the goal hole and the ball outlet; the driving device is arranged on the base, and the driving device drives the waterwheel dial mechanism to rotate, and the waterwheel dial mechanism is used to dial or jam a table tennis ball, and the limiting mechanism is arranged on the base; when the waterwheel dial mechanism contacts the limiting mechanism, the limiting mechanism is dialed to limit the table tennis ball, and when the waterwheel dial mechanism does not contact the limiting mechanism, the limiting mechanism rebounds and resets.

[0006] Furthermore, the base is also provided with a blocking cover, and the blocking cover is arranged on one side of the base.

[0007] Furthermore, the driving device is a ball feeding motor, one end of which is connected to the base, and the other end of which is connected to the water wheel paddle mechanism.

[0008] Furthermore, the waterwheel paddle wheel mechanism includes a waterwheel paddle wheel and a first connecting member, and the waterwheel paddle wheel is connected to the driving device via the first connecting member.

[0009] Furthermore, the waterwheel paddle wheel is provided with a plurality of waterwheel blades, and the waterwheel blades are arranged in an equally spaced circular array along the central axis of the waterwheel paddle wheel; and the recessed card-feeding position between two adjacent waterwheel blades matches the size of the table tennis ball.

[0010] Furthermore, the number of the waterwheel blades is six.

[0011] Furthermore, the limiting mechanism includes a limiter, a second connecting member and a tension spring, one end of the limiter is connected to the base through the second connecting member, and the other end of the limiter is connected to the base through the tension spring.

[0012] Furthermore, the limiter is provided with a miniature bearing for contacting the waterwheel paddle wheel mechanism and a spring steel sheet for limiting the falling of the table tennis ball.

[0013] Furthermore, the second connecting member is a pin.

[0014] Furthermore, a connecting hole is provided on the base, and the connecting hole is fixed to the ball feeding motor through a third connecting member.

[0015] A waterwheel-type ball-jamming prevention ball-delivering method for a ball-serving machine comprises the following steps:

[0016] S1, the limit mechanism is in the reset state, the limit mechanism blocks the water wheel mechanism, the first table tennis ball enters from the goal entrance, and falls along the ballway to the concave card delivery position of the water wheel mechanism;

[0017] S2, starting the driving device to drive the waterwheel dial mechanism to rotate, the waterwheel dial mechanism rotates, and the limit mechanism is driven to block the second table tennis ball from falling along the lane;

[0018] S3. The waterwheel dial mechanism continues to rotate, driving the first ping-pong ball toward the ball outlet of the fairway. When the waterwheel dial mechanism passes over the limiting mechanism and does not contact the limiting mechanism for a short period of time, the limiting mechanism rebounds and resets, no longer blocking the second ping-pong ball from falling along the fairway. The second ping-pong ball falls into the recessed delivery position of the waterwheel dial mechanism like the first ping-pong ball. Then, the waterwheel dial mechanism continues to rotate, driving the second ping-pong ball toward the ball outlet of the fairway, briefly moving the limiting mechanism to limit the third ping-pong ball from falling. Then, the third ping-pong ball and other ping-pong balls are delivered in sequence to achieve smooth ball delivery.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The device uses a waterwheel paddle wheel mechanism. Compared with a spiral ball feeding device, the waterwheel paddle wheel mechanism exerts less force on the table tennis ball during the ball feeding process, thereby reducing the probability of flattening the ball during the ball feeding process. In addition, compared with an intermittent push-type ball feeding device, the device has a simple structure, and the driving device drives the waterwheel paddle wheel mechanism to achieve continuous ball feeding.

[0021] The device is provided with a limiting mechanism. During each ball delivery process, the waterwheel paddle wheel mechanism for delivering the ball rotates to trigger the limiting mechanism. The limiting mechanism elastically opens to temporarily block the table tennis ball behind from entering the waterwheel paddle wheel mechanism for delivering the ball, thereby ensuring that the waterwheel paddle wheel mechanism can easily jam the table tennis ball in front and the table tennis balls behind will not be stacked in the jamming position. Among them, the limiting mechanism can effectively prevent the table tennis balls from being pinched and jammed during delivery. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The technology of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0023] Figure 1 It is an exploded view of the overall structure of the device;

[0024] Figure 2 It is an exploded view of the limiting mechanism of the device;

[0025] Figure 3 This is a front view of the device when the limiting mechanism blocks the falling of the table tennis ball;

[0026] Figure 4 It is a front view of the limit mechanism of the device when it rebounds and resets.

[0027] Reference numerals:

[0028] 1-base; 11-ball inlet; 12-ball outlet; 13-ball lane; 14-blocking cover; 15-connecting hole; 2-driving device; 21-ball feeding motor; 3-waterwheel dial mechanism; 31-waterwheel dial; 311-waterwheel blade; 312-recessed card feeding position; 3121-first straight line; 3122-arc; 3123-second straight line; 32-first connecting piece; 4-limiting mechanism; 41-limiter; 411-miniature bearing; 412-spring steel sheet; 4121-second shaft hole; 4122-groove; 413-first shaft hole; 414-hanging ear; 415-third shaft hole; 416-embedded block; 42-second connecting piece; 43-tension spring; 5-ping-pong ball. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention, so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other without conflict. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0030] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature, or it may be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the drawings.

[0031] Reference Figures 1 to 4 A waterwheel-type anti-ball jamming and ball feeding device for a ball serving machine comprises a base 1, a driving device 2, a waterwheel dial mechanism 3 and a limiting mechanism 4, wherein the base 1 is provided with a goal hole 11 and a ball outlet 12 for a table tennis ball 5 to pass through; the base 1 is provided with a ball lane 13 for the table tennis ball 5 to pass through, and the ball lane 13 connects the goal hole 11 and the ball outlet 12; the driving device 2 is arranged on the base 1, and the driving device 1 drives the waterwheel dial mechanism 3 to rotate, and the waterwheel dial mechanism 3 is used to dial or jam the table tennis ball 5, and the limiting mechanism 4 is arranged on the base 1; when the waterwheel dial mechanism 3 contacts the limiting mechanism 4, the limiting mechanism 4 is dialed to limit the table tennis ball 5, and when the waterwheel dial mechanism 3 does not contact the limiting mechanism 4, the limiting mechanism 4 rebounds and resets.

[0032] In one embodiment, the base 1 is further provided with a blocking cover 14 , and the blocking cover 14 is arranged on one side of the base 1 .

[0033] In one embodiment, the driving device 2 is a ball feeding motor 21 , one end of the ball feeding motor 21 is connected to the base 1 , and the other end is connected to the water wheel paddle mechanism 3 .

[0034] In one embodiment, the waterwheel paddle wheel mechanism 3 includes a waterwheel paddle wheel 31 and a first connecting member 32 , and the waterwheel paddle wheel 31 is connected to the driving device 2 via the first connecting member 32 .

[0035] In one embodiment, the waterwheel paddle wheel 31 is provided with a plurality of waterwheel blades 311 , and the waterwheel blades 311 are arranged in an equally spaced circular array along the central axis of the waterwheel paddle wheel 31 ; the recessed card position 312 between two adjacent waterwheel blades 311 matches the size of the ping-pong ball 5 .

[0036] Reference Figure 3In one embodiment, the front view outline of the recessed card feeding position 312 is that a first straight line 3121 is connected to a tangent line of one end of an arc 3122 , and the other end of the arc 3122 is connected to a tangent line of a second straight line 3123 .

[0037] In one embodiment, six water wheel blades 311 are provided.

[0038] In one embodiment, the limit mechanism includes a limiter 41, a second connecting member 42 and a tension spring 43, wherein one end of the limiter 41 is connected to the base 1 through the second connecting member 42, and the other end of the limiter 41 is connected to the base 1 through the tension spring 43. Specifically, the limiter 41 is provided with a first shaft hole 413, the first shaft hole 413 matches the second connecting member 42, and the limiter 41 is provided with a lifting ear 414, and the lifting ear 414 is connected to the tension spring 43.

[0039] In one embodiment, the stopper 41 is provided with a micro bearing 411 for contacting the water wheel paddle mechanism 3 and a spring steel sheet 412 for limiting the falling of the table tennis ball 5. The stopper 41 is provided with a spring steel sheet 412, which has a certain elasticity. Due to the uncertainty of the falling of the table tennis ball 5 when entering the lane 13, the limiting mechanism 4 may catch the table tennis ball 5. Therefore, the spring steel sheet 412 needs to have a certain rigidity and a certain flexibility. When the limiting mechanism 4 catches the table tennis ball 5, the spring steel sheet 412 undergoes elastic deformation to protect the table tennis ball 5 from being crushed. Specifically, the spring steel sheet 412 is provided with a second axial hole 4121 and a groove 4122, and the limiter 41 is provided with a third axial hole 415 and an embedding block 416. When the spring steel sheet 412 is connected to the limiter 41, the axis of the second axial hole 4121 coincides with the axis of the third axial hole 415, and the second axial hole 4121 and the third axial hole 415 are connected by a connecting piece. At the same time, the groove 4122 and the embedding block 416 are matched and fixed to each other.

[0040] In one embodiment, the second connecting member 42 is a pin. Specifically, the first connecting member 32 may also be a pin.

[0041] In one embodiment, a connecting hole 15 is provided on the base 1, and the connecting hole 15 is fixed to the ball feeding motor 21 through a third connecting member.

[0042] Specifically, the limiter 41 is connected to the base 1 at one end by a pin, and the other end is connected by a tension spring 43. A micro bearing 411 and a spring steel sheet 412 are installed on the limit mechanism 4. During operation, when the water wheel paddle 31 rotates, the water wheel blade 311 contacts the micro bearing 411 of the limit mechanism 4, driving the limit mechanism 4 to rotate, thereby limiting the table tennis ball 5 from falling along the lane 13. When the water wheel blade 311 contacts and separates from the micro bearing 411, the limit mechanism 4 is driven by the tension spring 43 on the limit mechanism 4 to rebound and reset.

[0043] Specifically, when the water wheel blade 311 of the water wheel dial 31 enters the ball lane 13, and the vertical distance between the water wheel blade 311 and the bottom inner wall of the ball lane 13 is equal to the diameter of the ping-pong ball 5, this position is the "dead position" for the ball to be stuck, and the ball is very likely to be stuck at this position. Therefore, the time period for the operation of the limiter 41 is: the starting limit period is when the water wheel blade 311 just enters the ball lane 13; the ending limit period is when the vertical distance between the water wheel blade 311 and the bottom inner wall of the ball lane 13 is less than the diameter of the ping-pong ball 5.

[0044] A waterwheel-type ball-jamming prevention ball-delivering method for a ball-serving machine comprises the following steps:

[0045] S1, the limit mechanism 4 is in the reset state, the limit mechanism 4 blocks the water wheel blades 311 of the water wheel dial mechanism 3, the first table tennis ball 5 enters from the goal hole 11, and falls along the ball path 13 to the concave card position between the water wheel blades 311 of the water wheel dial mechanism 3;

[0046] S2, start the driving device 2 to drive the waterwheel dial mechanism 3 to rotate, the waterwheel dial mechanism 3 rotates, the waterwheel blade 311 dials the micro bearing 411 of the limit mechanism 4, and the spring steel sheet 412 on the limiter 41 blocks the second table tennis ball 5 from falling along the lane 13;

[0047] S3, the waterwheel dial mechanism 3 continues to rotate, driving the first ping-pong ball 5 to be sent toward the ball outlet 12 of the fairway 13, wherein, when the waterwheel dial mechanism 3 passes over the micro-bearing 411 of the limiting mechanism 4, it does not contact the limiting mechanism 4 for a short period of time, and the limiting mechanism 4 rebounds and resets by relying on the tension spring 43, and no longer blocks the second ping-pong ball 5 from falling along the fairway 13. The second ping-pong ball 5, like the first ping-pong ball 5, falls into the concave stuck position between the waterwheel blades 311 of the waterwheel dial mechanism 3, and then the waterwheel dial mechanism 3 continues to rotate, driving the second ping-pong ball 5 to be sent toward the ball outlet 12 of the fairway 13, and during the rotation, the micro-bearing 411 of the limiting mechanism 4 is briefly dialed, so that the spring steel sheet 412 limits the third ping-pong ball 5 to fall; then the third ping-pong ball 5 and the other ping-pong balls 5 are transported in sequence to achieve smooth ball delivery.

[0048] For other contents of the waterwheel type ball-jamming prevention ball-feeding device for a ball serving machine described in the present invention, please refer to the prior art and will not be described in detail here.

[0049] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A waterwheel-type ball-stuck prevention ball-feeding device for a ball-serving machine. It is characterized in that The invention comprises a base, a driving device, a waterwheel paddle mechanism and a limiting mechanism, wherein the base is provided with a goal hole and a ball outlet for a table tennis ball to pass through; the base is provided with a ballway for a table tennis ball to pass through, and the ballway is connected with the goal hole and the ball outlet; the driving device is arranged on the base, and the driving device drives the waterwheel paddle mechanism to rotate, and the waterwheel paddle mechanism is used to paddle or clamp a table tennis ball, and the limiting mechanism is arranged on the base; when the waterwheel paddle mechanism contacts the limiting mechanism, the limiting mechanism is moved to limit the table tennis ball, and when the waterwheel paddle mechanism does not contact the limiting mechanism, the limiting mechanism rebounds and resets; The base is also provided with a blocking cover, and the blocking cover is arranged on one side of the base; The driving device is a ball-feeding motor, one end of which is connected to the base, and the other end of which is connected to the waterwheel paddle wheel mechanism.

2. The waterwheel type ball-jamming prevention ball-delivering device for a ball serving machine according to claim 1, It is characterized in that The waterwheel paddle wheel mechanism comprises a waterwheel paddle wheel and a first connecting member, and the waterwheel paddle wheel is connected to the driving device via the first connecting member.

3. The waterwheel type ball-jamming prevention ball-delivering device for a ball serving machine according to claim 2, It is characterized in that The waterwheel paddle wheel is provided with a plurality of waterwheel blades, and the waterwheel blades are arranged in a circular array with equal spacing along the central axis of the waterwheel paddle wheel; the concave card feeding position between two adjacent waterwheel blades matches the size of the table tennis ball.

4. The waterwheel type ball-jamming prevention ball-delivering device for a ball serving machine according to claim 3, It is characterized in that The waterwheel blades are provided with six.

5. The waterwheel type ball-jamming prevention ball-delivering device for a ball-serving machine according to claim 1, It is characterized in that The limiting mechanism comprises a limiter, a second connecting member and a tension spring. One end of the limiter is connected to the base through the second connecting member, and the other end of the limiter is connected to the base through the tension spring.

6. The waterwheel type ball-jamming prevention ball-delivering device for a ball-serving machine according to claim 5, It is characterized in that The limiter is provided with a miniature bearing for contacting with the water wheel paddle mechanism and a spring steel sheet for limiting the falling of the table tennis ball.

7. The waterwheel type ball-jamming prevention ball-delivering device for a ball serving machine according to claim 5, It is characterized in that The second connecting member is a pin.

8. A waterwheel-type anti-ball jamming ball delivery method for a ball serving machine, which is based on the waterwheel-type anti-ball jamming ball delivery device for a ball serving machine according to any one of claims 1 to 7. It is characterized in that The following steps are involved: S1, the limit mechanism is in a reset state, the limit mechanism blocks the waterwheel dial mechanism, the first table tennis ball enters from the goal entrance, and falls along the ball lane to the concave card delivery position of the waterwheel dial mechanism; S2, starting the driving device to drive the waterwheel paddle wheel mechanism to rotate, the waterwheel paddle wheel mechanism rotates, and the limiting mechanism is moved to block the second table tennis ball from falling along the lane; S3, the waterwheel paddle mechanism continues to rotate, driving the first ping-pong ball to be sent toward the ball outlet of the lane, wherein, when the waterwheel paddle mechanism passes over the limiting mechanism and does not contact the limiting mechanism for a short period of time, the limiting mechanism rebounds and resets, no longer blocking the second ping-pong ball from falling along the lane, and the second ping-pong ball falls into the recessed delivery position of the waterwheel paddle mechanism like the first ping-pong ball, and then the waterwheel paddle mechanism continues to rotate, driving the second ping-pong ball to be sent toward the ball outlet of the lane, wherein the limiting mechanism is briefly moved to limit the third ping-pong ball from falling; then the third ping-pong ball and other ping-pong balls are delivered in sequence to achieve smooth ball delivery.

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