Ball feeding machine for table tennis training assistance

Abstract

The utility model discloses a ball feeding machine for table tennis training assistance. The ball feeding machine comprises a ball storage structure, a ball driving mechanism, a ball feeding structure and a controller connected with the ball driving mechanism, the ball driving mechanism is provided with a ball driving structure capable of rotating in the ball storage structure; the ball driving structure comprises a double-layer ball shifting disc and a ball stopping baffle; the double-layer ball shifting disc comprises upper and lower ball shifting discs and a rotating shaft; the rotating centers of the upper-layer ball shifting disc and the lower-layer ball shifting disc are fixedly connected with a rotating shaft which is connected with an output shaft of a driving motor; one end of the ball blocking baffle is fixed on the inner wall of one side of the communicating port, and the other end extends towards one side of the rotating shaft deviating from the communicating port; the ball feeding structure is an S-shaped ball feeding pipeline; the ball outlet is higher than the communicating opening; the ball outlet direction and the ball inlet direction are arranged in different planes; one end of the ball feeding pipeline is communicated with the communication port; the other end is a free end which can stretch and / or be bent and has a preset height; and the controller is provided with starting, stopping and adjusting keys. According to the utility model, the softness of ball feeding when a beginner enlightens and assists training is improved, the reference stability is enhanced, the training is efficient, and the effect is good.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of table tennis training aids, and particularly relates to a table tennis training feeding machine. BACKGROUND

[0002] At present, there are various table tennis training aids on the market, especially table tennis ball feeding devices for table tennis training. However, most of the current ball feeding machines for training adopt the mode of directly launching the ball to the side of the ball table of the player by a motor driving a friction wheel, which causes the distance of the incoming ball to be too far, the speed of the incoming ball to be too fast, and the rotation of the incoming ball to be too strong, and is only suitable for users with certain ball hitting basis for fitness and entertainment. However, in the process of use of beginners, due to the characteristics of the distance of the incoming ball being far, the speed of the incoming ball being fast, and the rotation of the incoming ball being strong, the beginners often make hitting mistakes or the hitting results are prone to obvious deviation, and the difficulty is too great to help beginners efficiently and accurately master the action essentials of counterattack.

[0003] Therefore, it is urgent to provide a table tennis training feeding machine to solve the problems of the long feeding distance, fast ball speed, strong ball rotation, fast state change of the incoming ball, and lack of stable reference for hitting the ball of the existing table tennis ball feeding equipment, so as to cause the difficulty to be too great for beginners to train the incoming ball at the beginning, the training efficiency to be not high, and the effect to be not good. CONTENT OF THE INVENTION

[0004] The table tennis training feeding machine is provided to solve the problems of the long feeding distance, fast ball speed, strong ball rotation, fast state change of the incoming ball, and lack of stable reference for hitting the ball of the existing table tennis ball feeding equipment, so as to cause the difficulty to be too great for beginners to train the incoming ball at the beginning, the training efficiency to be not high, and the effect to be not good.

[0005] The table tennis training feeding machine comprises a ball storage structure, a ball driving mechanism, a ball feeding structure communicated with a lower position of the ball storage structure, and a controller communicated with the ball driving mechanism. The ball storage structure is a cylindrical structure with a closed bottom end. The ball driving mechanism has a rotatable ball driving structure located in a lower region in the ball storage structure. The ball feeding structure is an S-shaped ball feeding pipeline. One end of the ball feeding pipeline is communicated with a communication port in a lower side region of the ball storage structure. The communication port is arranged opposite to the ball driving structure. The other end of the ball feeding pipeline is a free end capable of being telescopic and / or bending in a direction and having a preset height. The controller is provided with an on-off button for starting or stopping the ball driving mechanism, and an adjusting button for adjusting the rotation speed of the ball driving structure.

[0006] As an optional implementation, the table tennis training ball feeder further comprises a fixed seat fixedly connected with the ball driving mechanism; the fixed seat is arranged at a lower region in the ball storage structure and is fixedly connected with the inner wall of the ball storage structure; and a through hole is arranged on the fixed seat, and the size of the through hole is greater than the size of the diameter of the table tennis ball.

[0007] As another optional implementation, the fixed seat is arranged below the ball storage structure and is fixedly connected with the bottom of the ball storage structure.

[0008] As an optional implementation, the ball driving mechanism further comprises a driving motor; the output shaft of the driving motor is connected with the ball driving structure; and the shell of the driving motor is fixedly connected with the fixed seat.

[0009] As an optional implementation, the ball driving structure comprises a double-layer ball pushing disc and a ball blocking baffle arranged beside the communication port; the double-layer ball pushing disc comprises an upper ball pushing disc, a lower ball pushing disc and a rotating shaft; the size between the rotatable edge of the double-layer ball pushing disc and the inner side wall of the ball storage structure is less than the size of the diameter of the table tennis ball; the rotating center of the upper ball pushing disc and the rotating center of the lower ball pushing disc are fixedly connected through the rotating shaft, and the rotating shaft is connected with the output shaft; one end of the ball blocking baffle is fixed to the inner side wall of the ball storage structure at one side of the communication port, and the other end of the ball blocking baffle extends to the side of the rotating shaft away from the communication port; the distance between the other side of the communication port and the end of the other end of the ball blocking baffle is greater than the size of the diameter of the table tennis ball; and the height of the ball blocking baffle is less than the distance from the upper ball pushing disc to the bottom wall of the ball storage structure.

[0010] As an optional implementation, the ball blocking baffle is provided with a baffle gap at the position relative to the lower ball pushing disc, and the height of the baffle gap is greater than the thickness of the lower ball pushing disc.

[0011] As an optional implementation, the upper ball pushing disc is provided with at least one ball pushing disc gap, and the lower ball pushing disc is provided with a corresponding ball pushing disc gap at the position relative to the ball pushing disc gap of the upper ball pushing disc; and the size of the ball pushing disc gap is greater than the size of the table tennis ball.

[0012] As an optional implementation, the upper ball pushing disc is provided with four ball pushing disc gaps symmetrically distributed thereon.

[0013] As another optional implementation, the lower ball pushing disc is provided with four ball pushing disc gaps symmetrically distributed thereon.

[0014] As an optional implementation, the inner edge of the ball pushing disc gap is in an arc structure; the arc structure at the upstream position in the rotating direction is an arc structure protruding outward from the ball pushing disc gap; and the arc structure at the downstream position in the rotating direction is an arc structure protruding inward from the ball pushing disc gap.

[0015] As an optional implementation, the height of the ball outlet on the feeding pipe is higher than the height of the communication port.

[0016] As an optional implementation, the axis of the feeding pipe at the ball outlet is out of plane with the axis of the feeding pipe at the ball inlet.

[0017] As an optional implementation, a soft layer is arranged on the inner wall of the feeding pipe at the ball outlet; the inner diameter of the soft layer when being pressed by the table tennis ball is not less than the diameter of the table tennis ball; and the inner diameter of the soft layer when not being pressed by the table tennis ball is less than the diameter of the table tennis ball.

[0018] The utility model has obvious advantages and beneficial effects compared with the prior art.

[0019] I. The utility model provides a kind of ball feeder for table tennis training, comprising ball storage structure, ball driving mechanism, the ball feeding structure being communicated with the lower part position of ball storage structure, and the controller being communicated with ball driving mechanism;Ball storage structure is the cylindrical structure of bottom end closure;Ball driving mechanism has rotatable ball driving structure, and ball driving structure is located in the lower area in ball storage structure;Ball feeding structure is S-shaped ball feeding pipe;One end of ball feeding pipe is communicated with the communication port in the lower side area of ball storage structure;Communication port is oppositely arranged with ball driving structure;The other end of ball feeding pipe is telescopic and / or bending direction, and the free end of preset height;Controller is equipped with start-stop button of starting or stopping ball driving mechanism and adjusting button of adjusting the rotation speed of ball driving structure.The utility model can be set to the side of beginner training table, and the ball feeding distance beginner is close, and ball feeding speed is soft, reduces the rotation of the ball fed and the speed of state change, so that the state stability of the ball fed is stronger, strengthens the stable reference of swing and hits ball, reduces the difficulty of beginner initial training, improves the efficiency of learning and training, and the training effect is better.

[0020] II. The utility model provides a kind of ball feeder for table tennis training, comprising ball storage structure, ball driving mechanism, the ball feeding structure being communicated with the lower part position of ball storage structure, and the controller being communicated with ball driving mechanism;Ball storage structure is the cylindrical structure of bottom end closure;Ball driving mechanism has rotatable ball driving structure, and ball driving structure is located in the lower area in ball storage structure;Ball feeding structure is S-shaped ball feeding pipe;One end of ball feeding pipe is communicated with the communication port in the lower side area of ball storage structure;Communication port is oppositely arranged with ball driving structure;The other end of ball feeding pipe is telescopic and / or bending direction, and the free end of preset height;Controller is equipped with start-stop button of starting or stopping ball driving mechanism and adjusting button of adjusting the rotation speed of ball driving structure.The utility model can be set to the side of beginner training table, and the ball feeding distance beginner is close, and ball feeding speed is soft, reduces the rotation of the ball fed and the speed of state change, so that the state stability of the ball fed is stronger, strengthens the stable reference of swing and hits ball, reduces the difficulty of beginner initial training, improves the efficiency of learning and training, and the training effect is better.

[0021] The ball driving structure and the ball storage structure are arranged, so that the driving motor is easily driven to drive the ball driving structure, and the ball driving structure is easily driven to stably drive the table tennis balls stored in the ball storage structure through the communication opening to the S-shaped ball feeding pipeline, thereby ensuring the stability of ball feeding.

[0022] The upper layer ball pushing disc has four symmetrically distributed ball pushing disc notches, and the lower layer ball pushing disc has four symmetrically distributed ball pushing disc notches corresponding to the ball pushing disc notches of the upper layer ball pushing disc, so that the table tennis balls stored in the ball storage structure are more stably and continuously driven and fed into the S-shaped ball feeding pipeline, and the stability of the speed and adjustment of ball feeding is further ensured.

[0023] The height of the ball outlet of the ball feeding pipeline is higher than the height of the communication opening, and the axis of the ball feeding pipeline at the ball outlet is arranged in a different plane from the axis of the ball feeding pipeline at the ball inlet, so that the ball outlet of the S-shaped ball feeding pipeline is more easily adapted and arranged according to the body shape parameters such as height, arm length, and training position of beginners on one side of the training table, thereby improving the user experience.

[0024] The soft layer is arranged on the inner wall of the ball feeding pipeline at the ball outlet, the inner diameter of the soft layer when being extruded by the table tennis ball is not less than the diameter of the table tennis ball, and the inner diameter of the soft layer when not being extruded by the table tennis ball is less than the diameter of the table tennis ball. The soft layer can avoid the table tennis balls in the S-shaped ball feeding pipeline from being fed out at a time without following the preset interval, thereby ensuring the stability of the training ball feeding frequency.

[0025] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, the content of the specification can be implemented, and in order to make the above structure and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structure schematic diagram of a table tennis training feeding machine according to an embodiment of the present application;

[0027] Figure 2 is a sectional structure schematic diagram of a table tennis training feeding machine according to an embodiment of the present application;

[0028] Figure 3 is a top view structure schematic diagram of a table tennis training feeding machine according to an embodiment of the present application;

[0029] Figure 4 is a side view structure schematic diagram of a table tennis training feeding machine according to an embodiment of the present application;

[0030] Figure 5 is a transformer power output structure schematic diagram of a circuit control system of a table tennis training feeding machine according to an embodiment of the present application;

[0031] Figure 6 is a structure schematic diagram of a circuit control system of a table tennis training feeding machine according to an embodiment of the present application.

[0032] REFERENCE NUMERALS

[0033] 1: ball storage structure 11: communication port

[0034] 2: ball driving mechanism 21: ball driving structure

[0035] 212: double-layer ball pushing disc 2121: upper-layer ball pushing disc

[0036] 2122: lower-layer ball pushing disc 2123: rotating shaft

[0037] 2124: ball pushing disc gap 213: ball blocking baffle

[0038] 2131: baffle gap 22: fixed seat

[0039] 23: driving motor 231: output shaft

[0040] 24: circuit control system 241: storage battery

[0041] 242: on-off switch 243: speed regulating switch

[0042] 244: speed regulating button 245: power charging port

[0043] 2451: power connection switch 3: ball feeding structure

[0044] 31: ball feeding pipeline 312: ball outlet

[0045] 32: fixed clamps 4: controller DETAILED DESCRIPTION

[0046] To further illustrate the technical means and effects taken by the utility model to achieve the predetermined utility model purposes and effects, the specific implementation, structure, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0047] The utility model provides a ping -pong ball training with feeding ball machine, to solve the existing ping -pong ball serving equipment serves the distance far, the ball speed is fast, the rotation is strong, the ball state changes fast, lacks the steady reference of the stroke ball, thereby causes the beginner to be difficult when the initial training ball receiving, training efficiency is not high, the effect is not good The problem of ping -pong ball training with feeding ball machine. Figures 1 to 6 As shown in the figure, the ping -pong ball training with feeding ball machine includes: ball storage structure 1, ball driving mechanism 2, feeding structure 3 with the lower position of ball storage structure 1 is communicated, and the controller 4 of communication connection ball driving mechanism 2.Ball storage structure 1 is the cylindrical structure of bottom end closed, the cylindrical structure can be further preferred as bucket shape structure, the circular opening of bucket shape structure is not specifically limited in the direction of upward or downward, the big end of the circular opening in the bucket shape structure is placed in the upper portion, as shown in the figure. Figures 1 to 4

[0048] ​In the utility model, the ball driving mechanism 2 has rotatable ball driving structure 21, and the ball driving structure 21 is located in the lower region in the ball storage structure 1. The space region form of the operation of the ball driving structure 21 around the rotation shaft is adapted to the size of the hollow space in the lower region in the ball storage structure 1. For example, when the ball driving structure 21 rotates around the rotation shaft, the space shape swept by the ball driving structure 21 is adapted to the space form of the lower region in the ball storage structure 1. The ball driving mechanism 2 can include driving motor 23; the output shaft 231 of driving motor 23 is connected with the ball driving structure 21; the shell of driving motor 23 is fixedly connected with the fixed seat 22. The ball feeding structure 3 is S-shaped ball feeding pipeline 31; one end of the ball feeding pipeline is communicated with the communication port 11 in the lower lateral region of the ball storage structure 1; the communication port 11 is oppositely arranged with the ball driving structure 21. The other end of the ball feeding pipeline 31 is a free end that can be telescopic and / or bent, and has a preset height. For example, the ball feeding pipeline can select a telescopic and bendable pipe, and the material of the telescopic and bendable pipe is not limited to plastic material, metal material and alloy material, etc., such as the telescopic and bendable pipe is not limited to the telescopic and bendable pipe including plastic material, the telescopic and bendable pipe of metal and alloy material, the flexible telescopic and bendable spring pipe of metal and alloy material with certain toughness, and further is not limited to the rubber bellows or silica gel telescopic pipe with certain hardness and settable structure form. The embodiment selects the telescopic and bendable pipe of plastic material with good telescopic and bendable performance and low cost. For example, the telescopic and bendable pipe of plastic material with certain hardness and settable structure form with a screw thread structure is used as the S-shaped ball feeding pipeline 31 of the ball feeding structure 3. The inner diameter of the ball feeding pipeline is slightly larger than the inner diameter of the table tennis ball, so that the table tennis ball can smoothly pass through the telescopic, bendable and flexible ball feeding pipeline 31. The driving motor 23 can drive the ball driving structure 21 to rotate under the action of the connected power supply, drive the table tennis balls in the upper region of the ball storage structure 1 to the lower region of the ball storage structure 1, drive the table tennis balls in the lower region of the ball storage structure 1 to the S-shaped ball feeding pipeline 31 of the ball feeding structure 3, and continuously drive the table tennis balls in the ball storage structure 1, so that the table tennis balls are fed to the table along the ball feeding pipeline 31 and the soft table tennis balls for training are obtained.

[0049] In the utility model, the start-stop button of opening or closing the ball driving mechanism 2 and the adjusting button of adjusting the rotating speed of the ball driving structure 21 are arranged on the controller 4. The controller 4 can be arranged on the ball storage structure 1 outside the table tennis training ball feeder, or the ball driving mechanism 2 is arranged on the shell outside the ball storage structure 1. As a preferred embodiment, the controller 4 can also be arranged as a movable handheld remote controller, which is not specifically limited here, and the movable handheld controller in the prior art can be referred to. The controller 4 can control the closing and opening of the driving motor 23 and the size of the rotating speed, so that the driving motor 23 drives the rotatable ball driving structure 21 to continuously feed the table tennis balls in the ball storage structure 1 along the feeding pipeline 31 to the ball table for a certain interval.

[0050] In the utility model, the ball driving mechanism 2 further comprises a circuit control system 24 (such as Figure 5 and Figure 6As shown in the figure, the circuit control system 4 is connected with the power supply (including the battery 241 or the external 220V AC power supply) and the power supply terminal of the driving motor 23, respectively. When the controller 4 is a movable handheld controller, the controller 4 is connected with the circuit control system 24 in wireless communication. The power supply and the power supply line of the external 220V AC power supply extend to the power charging port 245 arranged on the circuit control system 24. The power connection switch 2451 is arranged on the line between the power charging port 245 and the battery 241. When the battery 241 runs out of power, the external 220V AC power supply is connected to the power charging port 245, the power connection switch 2451 is adjusted to the 220V AC power supply charging and running position, at this time, the battery 241 is charged and the table tennis training ball feeder runs. When other DC power supply (such as external battery) is connected to the power charging port 245, the power connection switch 2451 is adjusted to the DC power supply charging and running position, at this time, the battery 241 is charged and the table tennis training ball feeder runs. When the battery 241 is fully charged, the indicator lamp connected with the battery 241 indicates that the battery is fully charged, at this time, the power connection switch 2451 is adjusted to the running position, at this time, the external power supply connected to the table tennis training ball feeder can supply power for the running. When the external power supply connected to the power charging port 245 is removed, the battery 241 is adjusted to the power supply running position through the power connection switch 2451, the voltage of the DC power supply is increased to 36V through the power transformer, and the DC motor is connected with the driving motor 23 through the speed regulating switch 243 connected with the pwn DC motor and supplied with power. The speed regulating switch 243 is in communication with the speed regulating button 244 on the controller 4. The on-off switch 242 is arranged between the battery 241 and the speed regulating switch 243, and is in communication with the on-off button on the controller 4, which is used to start or stop the running of the table tennis training ball feeder. The control circuit of the above-mentioned circuit control system 24 and controller 4 is implemented according to the prior art and actual situation, which will not be described here.

[0051] As an optional embodiment, the table tennis training ball feeder further comprises a fixed seat 22 fixedly connected with the ball driving mechanism 2, and the fixed seat 22 is arranged below the outside of the ball storage structure 1 and fixedly connected with the bottom of the ball storage structure 1. The driving motor 23 can be arranged in the fixed seat 22, as shown in the figure. Figure 2 The bottom of the ball storage structure 1 has a through hole, and the driving motor 23 and the rotating shaft of the ball driving mechanism 21 pass through the through hole and are fixedly connected together.

[0052] As another optional embodiment, the fixed seat 22 can also be arranged in the lower region of the ball storage structure 1 and fixedly connected with the inner wall of the ball storage structure 1, and the fixed seat 22 is provided with a through hole with a size greater than the diameter of the table tennis ball. When the fixed seat 22 is arranged in the lower region of the ball storage structure 1, in order to ensure that the table tennis balls in the upper region of the ball storage structure 1 can pass through the through hole of the fixed seat 22 to the lower region of the ball storage structure 1 more smoothly, the upper surface of the fixed seat 22 can be arranged as an inclined surface, and the through hole of the fixed seat 22 is arranged at the lower part of the inclined surface, so that the table tennis balls in the upper region of the ball storage structure 1 can quickly enter the lower region of the ball storage structure 1 through the through hole (not shown in the figure).

[0053] As an optional embodiment, the ball driving structure 21 comprises a double-layer ball pushing disc 212 and a ball blocking baffle 213 arranged beside the communication port 11, and the double-layer ball pushing disc 212 comprises an upper ball pushing disc 2121, a lower ball pushing disc 2122 and a rotating shaft 2123. The size between the rotatable edge of the double-layer ball pushing disc 212 and the inner side wall of the ball storage structure 1 is smaller than the diameter of the table tennis ball, so as to ensure that the table tennis balls entering the lower region of the ball storage structure 1 cannot pass through the gap between the rotatable edge of the double-layer ball pushing disc 212 and the inner side wall of the ball storage structure 1.

[0054] In the utility model, the rotating center of the upper ball pushing disc 2121 and the rotating center of the lower ball pushing disc 2122 are fixedly connected through the rotating shaft 2123, and the rotating shaft 213 is connected with the output shaft 231. When the fixed seat 22 is arranged in the lower region of the ball storage structure 1, the output shaft 231 and the rotating shaft 2123 are both located in the ball storage structure 1, and at this time, the bottom of the ball storage structure 1 does not need to be provided with a through hole through which the output shaft 231 passes. When the fixed seat 22 is arranged below the ball storage structure 1 and fixedly connected with the bottom of the ball storage structure 1, the bottom of the ball storage structure 1 is provided with a through hole through which the output shaft 231 passes, and the output shaft 231 and the rotating shaft 2123 are fixedly connected together.

[0055] In the utility model, one end of the ball blocking baffle 213 is fixed to the inner side wall of the ball storage structure 1 at one side of the communication port 11, and the other end of the ball blocking baffle 213 extends to the side of the communication port 11 in the direction of the rotating shaft 2123; the length of the other end of the ball blocking baffle 213 extending is not greater than the difference between the diameter of the lower region of the ball storage structure 1 and the diameter of the ping-pong ball; the distance between the other side of the communication port 11 and the end of the other end of the ball blocking baffle 213 is greater than the diameter of the ping-pong ball, so that the ping-pong ball in the lower region of the ball storage structure 1 can run along the rotation of the double-layer ball pushing disc 212 to the communication port 11 at one side of the ball blocking baffle 213. The height of the ball blocking baffle 213 is less than the distance from the upper-layer ball pushing disc 2121 to the bottom wall of the ball storage structure 1, and the ball blocking baffle 213 is arranged below the upper-layer ball pushing disc 2121, so that the ball blocking baffle 213 blocks the ping-pong ball driven by the double-layer ball pushing disc 212 in the lower region of the ball storage structure 1 to the communication port 11, and the ping-pong ball in the lower region of the ball storage structure 1 can only be outputted from the communication port 11 to the outside under the action of the double-layer ball pushing disc 212, the ball blocking baffle 213 at the side of the communication port 11 and the inner wall of the lower region of the ball storage structure 1.

[0056] As an optional embodiment, the ball blocking baffle 213 is provided with a baffle gap 2131 at the position relative to the lower-layer ball pushing disc 2122, and the height of the baffle gap 2131 is greater than the thickness of the lower-layer ball pushing disc 2122, so that the ball pushing blades of the lower-layer ball pushing disc 2122 can smoothly pass through the baffle gap 2131 on the ball blocking baffle 213 when rotating.

[0057] As an optional embodiment, the bottom of the ball blocking baffle 213 can also be fixed to the bottom wall of the ball storage structure 1, or one end of the ball blocking baffle 213 is fixed to the side wall of the ball storage structure 1 and the bottom end of the ball blocking baffle 213 is fixed to the bottom wall of the ball storage structure 1, so as to enhance the stability of the ball blocking baffle 213.

[0058] As an optional embodiment, the height of the ball blocking baffle 213 can be greater than the upper surface of the upper-layer ball pushing disc 2121. The ball blocking baffle 213 is provided with a plurality of baffle gaps 2131, and the height of the baffle gap 2131 is greater than the thickness of the upper-layer ball pushing disc 2121, so as to ensure that the ball pushing blades of the upper-layer ball pushing disc 2121 can smoothly pass through the baffle gap 2131 on the ball blocking baffle 213 when rotating.

[0059] As an optional embodiment, the upper ball pushing disc 2121 has at least one ball pushing disc gap 2124, and the lower ball pushing disc 2122 has a corresponding ball pushing disc gap 2124 at a position opposite to the ball pushing disc gap 2124 of the upper ball pushing disc 2121; the size of the ball pushing disc gap 2124 is greater than the size of the table tennis ball. The space of one ball pushing disc gap 2124 can only store one table tennis ball, so that the table tennis ball transferred to the lower area of the ball storage structure 1 can only be located in the ball pushing disc gap 2124, and the table tennis ball in the ball pushing disc gap 2124 is transferred to the ball blocking baffle 213 under the action of rotation, and the table tennis ball in the ball pushing disc gap 2124 is extruded to the communication port 11 under the pushing action of the ball pushing blade of the lower ball pushing disc 2122 in rotation, and the table tennis ball is driven into the S-shaped feeding pipe 31 through the communication port 11.

[0060] As an optional embodiment, the upper ball pushing disc 2121 has four symmetrically distributed ball pushing disc gaps 2124; and the lower ball pushing disc 2122 has four symmetrically distributed ball pushing disc gaps 2124. Through the four symmetrically distributed ball pushing disc gaps 2124, the four table tennis balls stored in the ball pushing disc gaps 2124 of the double-layer ball pushing disc 212 can be driven into the S-shaped feeding pipe 31 at a predetermined interval time length rate in rotation, so as to ensure the output rate of the table tennis balls from the S-shaped feeding pipe 31 of the table tennis ball feeding machine for training, and to ensure the interval time length of the table tennis balls fed from the outlet of the S-shaped feeding pipe 31 to the table each time. When the rotation speed of the driving motor 23 is adjusted to the interval time length suitable for the training of beginners through the controller 4, the four symmetrically distributed ball pushing disc gaps 2124 can ensure the stability of the table tennis balls fed from the outlet of the S-shaped feeding pipe 31 to the table each time, and realize precise and stable training feeding of the table tennis balls.

[0061] As an optional embodiment, the inner edge of the ball pushing disc gap 2124 is an arc structure; the arc structure at the upstream position in the rotation direction is an arc structure protruding outward of the ball pushing disc gap 2124; and the arc structure at the downstream position in the rotation direction is an arc structure protruding inward of the ball pushing disc gap 2124 (as shown in FIG. 6). Figure 3The arc structure of the inner edge of the ball pushing disc gap 2124 at the downstream position in the rotation direction is smoother than the arc surface of the arc structure at the downstream position in the rotation direction, and the arc structure of the lower ball pushing disc 2122 at the downstream position in the rotation direction is consistent with the arc structure of the inner edge of the ball pushing disc gap 2124 at the downstream position in the rotation direction. The arc structure of the lower ball pushing disc 2122 at the downstream position in the rotation direction can enable the table tennis ball located in the ball pushing disc gap 2124 to be smoothly driven into the S-shaped feeding pipe 31 through the communication port 11 under the action of rotation.

[0062] As an optional embodiment, the height of the ball outlet 312 of the feeding pipe 31 is higher than the height of the communication port 11. In the utility model, the S-shaped feeding pipe 31 is a telescopic bending pipe made of plastic material with a thread-like structure. In use, the S-shaped feeding pipe 31 can be stretched, and the extended free end is located at an upper position, and the upper position of the free end is clamped and fixed in the fixed clamp 32, one end of the fixed clamp 32 is fixed on the outer side wall of the ball storage structure 1. The S-shaped feeding pipe 31 has a suitable length, and the ball outlet 312 of the free end can be set at a use height away from the table position, so that the slow and soft feeding through the ball outlet 312 is more stable, more accurate, and the ball speed change is more gentle.

[0063] As an optional embodiment, the axis of the feeding pipe 31 at the ball outlet is out of plane with the axis of the feeding pipe 31 at the ball inlet. In the utility model, the feeding pipe 31 at both ends of the S-shaped feeding pipe 31 is arranged in an out-of-plane structure, which further enhances the flexibility of the table tennis ball training feeding machine arranged around the table position, and ensures that the direction of the ball feeding from the ball outlet 312 can be more flexible and variable according to the actual needs of the standing position or the ball hitting action of beginners.

[0064] As an optional embodiment, a soft film layer (not shown in the figure) is arranged on the inner wall of the feeding pipe at the ball outlet; the inner diameter of the soft film layer when being extruded by the table tennis ball is not less than the diameter of the table tennis ball; and the inner diameter of the soft film layer when not being extruded by the table tennis ball is less than the diameter of the table tennis ball. When the position of the ball outlet 312 of the feeding pipe 31 is lower than the highest position of the feeding pipe 31, the table tennis ball in the feeding pipe 31 will accelerate and slide out of the ball outlet 312 under the action of gravity after passing through the highest position of the feeding pipe 31. At this time, by arranging a soft film layer on the inner wall of the feeding pipe at the ball outlet, the ball sliding to the position of the ball outlet 312 is fixed at the position of the ball outlet 312 by the blocking of the soft film layer. When the entire feeding pipe 31 behind the position of the ball outlet 312 is filled with the output table tennis balls, the table tennis balls behind will slowly extrude the table tennis balls fixed at the soft film layer, realizing the soft feeding of the ball outlet 312.

[0065] The above merely provides the preferred embodiment of the present application, and not any form of limitation to the present application. Although the present application has been disclosed with the preferred embodiment as above, it is not intended to limit the present application, and any person skilled in the art, without departing from the technical solution of the present application, can make some minor changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, but as long as it does not depart from the technical solution of the present application, any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A table tennis training machine for feeding balls, characterized in that, The utility model relates to a ball feeding device, including: A ball storage structure (1), a ball driving mechanism (2), a ball feeding structure (3) communicated with the lower part of the ball storage structure (1), and a controller (4) connected with the ball driving mechanism (2); The ball storage structure (1) is a cylindrical structure with a closed bottom end; The ball driving mechanism (2) has a rotatable ball driving structure (21) located in the lower area of the ball storage structure (1); The ball feeding structure (3) is an S-shaped ball feeding pipeline (31); One end of the ball feeding pipeline is communicated with a communication port (11) in the lower side area of the ball storage structure (1); the communication port (11) is arranged opposite to the ball driving structure (21); The other end of the ball feeding pipeline (31) is a free end with a telescopic and / or bending direction and a preset height; The controller (4) is provided with an on-off button for starting or stopping the ball driving mechanism (2) and an adjusting button for adjusting the rotating speed of the ball driving structure (21).

2. The ball feeding machine according to claim 1, wherein Further including: A fixed seat (22) fixedly connected with the ball driving mechanism (2); The fixed seat (22) is arranged in the lower area of the ball storage structure (1) and is fixedly connected with the inner wall of the ball storage structure (1); the fixed seat (22) is provided with a through hole with a size greater than the diameter of a table tennis ball; or The fixed seat (22) is arranged below the ball storage structure (1) and is fixedly connected with the bottom of the ball storage structure (1).

3. The ball feeding machine according to claim 2, wherein The ball driving mechanism (2) further includes a driving motor (23); The output shaft (231) of the driving motor (23) is connected with the ball driving structure (21); The shell of the driving motor (23) is fixedly connected with the fixed seat (22).

4. The ball feeding machine according to claim 3, wherein The ball driving structure (21) includes a double-layer ball pushing disc (212) and a ball blocking baffle (213) arranged beside the communication port (11); The double-layer ball pushing disc (212) includes an upper ball pushing disc (2121), a lower ball pushing disc (2122), and a rotating shaft (2123); The size between the rotatable edge of the double-layer ball pushing disc (212) and the inner side wall of the ball storage structure (1) is less than the diameter of a table tennis ball; The rotating center of the upper ball pushing disc (2121) and the rotating center of the lower ball pushing disc (2122) are fixedly connected through the rotating shaft (2123), and the rotating shaft (2123) is connected with the output shaft (231); One end of the ball blocking baffle (213) is fixed to the inner side wall of the ball storage structure (1) on one side of the communication port (11), and the other end of the ball blocking baffle (213) extends to the side of the communication port (11) in the direction of the rotating shaft (2123); The distance between the other side of the communication port (11) and the end of the other end of the ball blocking baffle (213) is greater than the diameter of a table tennis ball; The height of the ball blocking baffle (213) is less than the distance from the upper ball pushing disc (2121) to the bottom wall of the ball storage structure (1).

5. The ball feeding machine according to claim 4, wherein The ball blocking baffle (213) is provided with a baffle gap (2131) at the position relative to the lower ball pushing disc (2122), and the height of the baffle gap (2131) is greater than the thickness of the lower ball pushing disc (2122).

6. The ball feeding machine according to claim 4, wherein At least one ball pushing disc gap (2124) is formed on the upper ball pushing disc (2121), and the lower ball pushing disc (2122) is provided with a corresponding ball pushing disc gap (2124) at a position opposite to the ball pushing disc gap (2124) of the upper ball pushing disc (2121); The size of the ball pushing disc gap (2124) is greater than that of the table tennis ball.

7. The ball feeding machine according to claim 6, wherein The upper ball pushing disc (2121) is provided with four symmetrically distributed ball pushing disc gaps (2124); and The lower ball pushing disc (2122) is provided with four symmetrically distributed ball pushing disc gaps (2124) correspondingly.

8. The ball feeding machine according to claim 6, wherein The inner edge of the ball pushing disc gap (2124) is in an arc structure; The arc structure at an upstream position in the rotation direction is an arc structure protruding outwardly of the ball pushing disc gap (2124); The arc structure at a downstream position in the rotation direction is an arc structure protruding inwardly of the ball pushing disc gap (2124).

9. The ball feeding machine according to claim 1, wherein The height of the ball outlet (312) of the ball feeding pipe (31) is higher than that of the communication port (11).

10. The ball feeding machine according to claim 1, wherein A soft film layer is arranged on the inner wall of the ball feeding pipe at the ball outlet.

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