Table tennis training aid

Abstract

A table tennis training aid comprises a ball storage structure, a ball driving mechanism, a ball feeding structure, a controller connected with the ball driving mechanism and a flexible ball bouncing structure. 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 ball shifting disc comprises an upper-layer ball shifting disc, a lower-layer ball shifting disc and a rotating shaft. The rotating center of the double-layer ball shifting disc is 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 a 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 a switch for starting, stopping and adjusting. 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] This application belongs to the technical field of table tennis training aids, and in particular relates to a table tennis training aid machine. Background Technology

[0002] Currently, there are many types of table tennis training equipment on the market, especially table tennis ball-serving devices. However, most ball-serving machines used for training currently employ a structure consisting of a motor and a ball-serving friction wheel to drive the ball directly to the player's side of the table. Beginners often struggle to quickly and accurately predict the time, speed, and trajectory of the ball as it lands on the table, leading to significant hitting errors and difficulty in developing proper hitting reactions and movements. This results in poor training outcomes for beginners, and the actual ball placement is often not realistic. If the ball is passed manually, the trajectory and landing point on the table are difficult to maintain consistently, further impacting the training effectiveness for beginners.

[0003] Therefore, there is an urgent need to provide a table tennis training aid to solve the problem that the current table tennis training aids do not pass the ball realistically enough, which easily leads to hitting errors and affects the training effect. Utility Model Content

[0004] This invention provides a table tennis training aid to solve the problem that existing table tennis training aids do not pass the ball realistically enough, which easily leads to hitting errors and affects the training effect.

[0005] This utility model provides a table tennis training aid machine, which includes: a ball storage structure, a ball driving mechanism, a ball feeding structure communicating with the lower part of the ball storage structure, a controller mounted on a base and connected to the ball driving mechanism, and a flexible ball bouncing structure; the bottom end of the ball storage structure is fixedly connected to the top end of the base, and the base is fixedly connected to the ball driving mechanism; the ball driving mechanism has a rotatable ball driving structure located in the lower region within the ball storage structure; the ball feeding structure is a ball feeding pipe; one end of the ball feeding pipe communicates with a connecting port in the lower side region of the ball storage structure; the connecting port is opposite to the ball driving structure; the controller is equipped with a control switch for turning the ball driving mechanism on or off, and a control switch for adjusting the rotation speed of the ball driving structure; one end of the ball bouncing structure is located below the ball outlet of the ball feeding pipe and opposite to the ball outlet of the ball feeding pipe, and the other end is fixedly connected to one of the three components: the ball storage structure, the base, and the ball feeding structure.

[0006] As an optional implementation, the ball-driving mechanism further includes: a drive motor; the output shaft of the drive motor is connected to the ball-driving structure; and the housing of the drive motor is fixedly connected to the base.

[0007] As an optional implementation, the ball-driving structure includes: a double-layer ball-driving disc and a ball-blocking baffle located beside the communication port; the double-layer ball-driving disc includes an upper ball-driving disc, a lower ball-driving disc, and a rotating shaft; the dimension between the rotatable edge of the double-layer ball-driving disc and the inner wall of the ball storage structure is smaller than the diameter of the ping-pong ball; the rotation center of the upper ball-driving disc and the rotation center of the lower ball-driving disc are fixedly connected by the rotating shaft, and the rotating shaft is connected to the output shaft; the ball-blocking baffle is fixed to the inner wall of the ball storage structure on the side of the communication port, and the ball-blocking baffle extends toward the rotating shaft in the direction of the communication port.

[0008] As an optional implementation, the ball-blocking baffle has a notch at the position relative to the lower ball-dispensing plate, and the height of the notch is greater than the thickness of the lower ball-dispensing plate.

[0009] As an optional implementation, the upper ball-dispensing plate has at least one ball-dispensing plate notch, and the lower ball-dispensing plate has a corresponding ball-dispensing plate notch at a position relative to the ball-dispensing plate notch of the upper ball-dispensing plate; the size of the ball-dispensing plate notch is larger than the size of the ping-pong ball.

[0010] As an optional implementation, the bouncing ball structure includes a flexible structure and an elastic structure; the elastic structure includes: a panel fixing assembly and an elastic panel disposed on the panel fixing assembly; the elastic panel is below the ball outlet and opposite to the ball outlet; the panel fixing assembly is fixedly connected to the flexible structure.

[0011] As an optional implementation, the panel fixing assembly includes: a supporting base plate and a limiting member disposed on the upper edge of the supporting base plate; the elastic panel is fixed to the upper surface of the supporting base plate.

[0012] As an alternative implementation, the flexible structure is an adjustable flexible rod and / or flexible hose.

[0013] As an optional implementation, the flexible structure includes a second flexible rod and a second tube structure that can be bent and adjusted; one end of the second tube structure that can be extended and adjusted is fixedly connected to the bottom of the panel fixing assembly, and the other end is fixedly connected to one end of the second flexible rod; the other end of the second flexible rod is fixedly connected to one of the ball storage structure, the base, and the ball feeding structure.

[0014] As an alternative implementation, a notch is provided at the ball outlet on the side facing the ball-launching structure.

[0015] This utility model has significant advantages and beneficial effects compared with the prior art. Through the above technical solution, this utility model has at least one of the following advantages and effects:

[0016] I. The table tennis training aid provided by this utility model includes a ball storage structure, a ball driving mechanism, a ball feeding structure connected to the lower part of the ball storage structure and mounted on a base and connected to the ball driving mechanism, and a flexible ball bouncing structure; the bottom end of the ball storage structure is fixedly connected to the top end of the base, and the base is fixedly connected to the ball driving mechanism; the ball driving mechanism has a rotatable ball driving structure located in the lower area within the ball storage structure; the ball feeding structure is a ball feeding pipe; one end of the ball feeding pipe is connected to a connecting port in the lower side area of ​​the ball storage structure; the connecting port is opposite to the ball driving structure; the controller is provided with a control switch for turning the ball driving mechanism on or off, and for adjusting the rotation speed of the ball driving structure; one end of the ball bouncing structure is located below the ball outlet of the ball feeding pipe and opposite to the ball outlet of the ball feeding pipe, and the other end is fixedly connected to one of the three components: the ball storage structure, the base, and the ball feeding structure. This utility model's table tennis training aid uses a bouncing ball structure to slowly and realistically pass the table tennis ball to the beginner's table, simulating a slow and realistic pass, reducing the error rate in training shots, and improving the training effect.

[0017] II. The ball-launching structure of this utility model includes a flexible structural part and an elastic structural part; the elastic structural part includes: a panel fixing component and an elastic panel disposed on the panel fixing component; the elastic panel is located below the ball outlet and opposite to the ball outlet; the panel fixing component is fixedly connected to the flexible structural part. This utility model uses the flexible structural part for adaptation and adjustment during ball passing, and the elastic structural part for slow and realistic ping-pong ball transmission, simulating a slow and realistic ball pass, reducing the error rate in training shots, and improving the training effect.

[0018] III. The flexible structure of this utility model includes a second flexible rod and a second tube structure that can be bent and adjusted. One end of the second tube structure, which can be extended and adjusted, is fixedly connected to the bottom of the panel fixing assembly, and the other end is fixedly connected to one end of the second flexible rod. The other end of the second flexible rod is fixedly connected to one of the ball storage structure, the base, or the ball feeding structure. This utility model, through its flexible structure, allows for adaptive adjustment of the direction and height of the ball hit by the elastic structure, ensuring that different beginners can make precise adjustments according to their own preferences for incoming balls, reducing the error rate in training shots and improving the training effect.

[0019] Fourth, this utility model has a notch on the side of the ball outlet facing the elastic structure. This notch can precisely limit the ping-pong ball from the ball outlet to the notch, so that the ping-pong ball from the ball outlet can be transmitted to the elastic structure more accurately, thus ensuring that the ping-pong ball transmitted from the elastic structure is more realistic, more stable and more accurate.

[0020] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above-mentioned structure and other objects, features and advantages of this utility model more obvious and understandable, preferred embodiments are given below, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a table tennis training aid machine according to an embodiment of this application;

[0022] Figure 2 This is a cross-sectional structural schematic diagram of a table tennis training machine without a ball feeding structure and a ball bouncing structure according to an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of a table tennis training machine without a bouncing ball structure according to an embodiment of this application;

[0024] Figure 4 This is a side view schematic diagram of a table tennis training machine without a ball feeding structure and a ball bouncing structure according to an embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the circuit structure of a table tennis training aid machine according to an embodiment of this application;

[0026] Figure 6 This is a schematic diagram of the structure of a bouncing ball according to an embodiment of this application;

[0027] Figure 7 This is a schematic diagram of the structure of a first flexible rod according to an embodiment of this application;

[0028] Figure 8 This is a schematic diagram of the structure of a first flexible hose according to an embodiment of this application;

[0029] Figure 9 This is a schematic diagram of the structure of the second flexible rod and the second tube according to an embodiment of this application;

[0030] Figure 10 This is a schematic diagram of the structure of the second flexible rod and the second tube according to an embodiment of this application;

[0031] Figure 11 This is a schematic diagram of the second tube structure according to an embodiment of this application;

[0032] Figure 12 This is a schematic diagram of the structure of a steering component according to an embodiment of this application;

[0033] Figure 13 This is a schematic diagram of the structure of a panel fixing assembly according to an embodiment of this application;

[0034] Figure 14 This is a schematic diagram of the structure of another panel fixing assembly according to an embodiment of this application;

[0035] Figure 15 This is a schematic diagram of another ball feeding structure and ball bouncing structure according to an embodiment of this application.

[0036] Attached icon number

[0037] 1: Ball storage structure 11: Connecting port

[0038] 2: Ball drive mechanism 21: Ball drive structure

[0039] 212: Double-layer ball-handling plate 2121: Upper-layer ball-handling plate

[0040] 2122: Lower ball-handling plate; 2123: Rotation axis

[0041] 2124: Notch in the ball-handling plate; 213: Ball-blocking baffle.

[0042] 2131: Baffle notch 23: Drive motor

[0043] 231: Output shaft; 241: Battery

[0044] 3: Ball feeding structure 31: Ball feeding pipe

[0045] 312: Ball exit point; 3121: Notch

[0046] 4: Controller

[0047] 5: Ball-and-ball structure 51: Flexible structural part

[0048] 511: First flexible rod; 512: First flexible hose

[0049] 514: Second flexible rod; 515: Second tubular structure

[0050] 515a: Second pipe structure one; 515b: Second pipe structure two

[0051] 515c: Fasteners; 515c1: Fastening clamps

[0052] 515c2: Extrusion column; 515c3: Connecting column

[0053] 515c4: Fastening handle; 52: Elastic structural part

[0054] 521: Panel fixing assembly; 5211: Support base plate

[0055] 5212: Limiting component; 522: Flexible panel

[0056] 6: Orientation component 61: Orientation base

[0057] 62: Orientation ball 63: Orientation lever

[0058] A: Local magnified area Detailed Implementation

[0059] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the following detailed description of its specific implementation methods, structure, features and effects, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0060] This utility model provides a table tennis training aid machine to solve the problem that existing table tennis training aids do not provide realistic ball passing, easily causing hitting errors and affecting training results. Figures 1 to 14 As shown, the table tennis training machine includes: a ball storage structure 1, a ball driving mechanism 2, a ball feeding structure 3 connected to the lower part of the ball storage structure 1, a controller 4 mounted on the base and connected to the ball driving mechanism 2, and a flexible ball bouncing structure 5. The ball storage structure 1 is a cylindrical structure with a closed bottom. The bottom end of the ball storage structure 1 is fixedly connected to the top end of the base, and the base is fixedly connected to the ball driving mechanism 2; this cylindrical structure can be further preferably a barrel-shaped structure. In this embodiment, the end with the larger circular opening in the barrel-shaped structure is placed at the top, such as... Figures 1 to 4 As shown.

[0061] In this invention, the ball-driving mechanism 2 has a rotatable ball-driving structure 21 located in the lower region of the ball-storing structure 1. The shape of the area through which the ball-driving structure 21 operates around the rotation axis 2123 is adapted to the size of the hollow space in the lower region of the ball-storing structure 1. For example, when the ball-driving structure 21 rotates around the rotation axis, the shape of the space swept by the ball-driving structure 21 is adapted to the spatial shape of the lower region of the ball-storing structure 1. The ball-driving mechanism 2 may include a drive motor 23; the output shaft 231 of the drive motor 23 is connected to the ball-driving structure 21; the drive motor 23 is located in the base and fixedly connected to the base. The ball-feeding structure 3 is an S-shaped ball-feeding pipe 31; one end of the ball-feeding pipe 31 is connected to the connecting port 11 in the lower side region of the ball-storing structure 1; the connecting port 11 is opposite to the ball-driving structure 21. The other end of the ball-feeding pipe 31 can be a rigid ball-feeding pipe or a free end that can extend and / or bend. For example, the ball feeding pipe 31 can be a telescopic bendable pipe, and the material of the telescopic bendable pipe is not limited to plastic or metal. The telescopic bendable pipe is not limited to plastic; it can also be made of metal or metal alloys. The telescopic bendable pipe has a certain degree of toughness and flexibility, and a certain degree of hardness. Examples include rubber corrugated pipes or silicone telescopic pipes with a shape-stabilizing structure. In this embodiment, a telescopic bendable pipe made of plastic material with good telescopic bending performance and low cost is selected. For example, a plastic telescopic bendable pipe with a thread-like structure and a certain degree of toughness and hardness with a shape-stabilizing structure is used as the S-shaped ball feeding pipe 31 of the ball feeding structure 3. The inner diameter of this ball feeding pipe is slightly larger than the inner diameter of the ping-pong ball, allowing the ping-pong ball to pass smoothly through the flexible tube of the telescopic, bending, and relatively rigid ball feeding pipe 31. As an optional implementation, the above-mentioned ball feeding pipe 31 can also be made of rigid plastic pipe, not limited to a single rigid plastic pipe, but can also be composed of multiple rigid plastic pipes connected together. Drive motor 23, powered by a connected power source (such as battery 241), rotates the ball-driving structure 21, driving the ping-pong balls from the upper region of the ball storage structure 1 to the lower region, and from the lower region to the S-shaped feeding pipe 31 of the feeding structure 3. Furthermore, the continuous driving of the ping-pong balls within the ball storage structure 1 causes them to travel along the feeding pipe 31 towards the ball-bouncing structure 5, and then through the ball-bouncing structure 5 to the table, thus feeding out softer, more realistic ping-pong balls for training purposes.

[0062] In this invention, the controller 4 is equipped with a control switch for turning the ball drive mechanism 2 on or off, and for adjusting the rotational speed of the ball drive structure 21. Figure 1 and Figure 5As shown, the controller 4 can be installed on the outer shell of the ball storage structure 1. The controller 4's control switches include a power switch and a ball feeding rhythm adjustment knob, both connected to each other. The control switches of the controller 4 are located on the base. The power switch controls the on / off state of the drive motor 23, and the ball feeding rhythm adjustment knob adjusts the rotational speed of the ball driving structure 21, causing the drive motor 23 to drive the rotatable ball driving structure 21 to continuously feed the ping-pong balls from the ball storage structure 1 along the ball feeding pipe 31 towards the table at a certain rhythm. For example, the drive motor 23 can be a 6-24V DC motor. Initially, rotating the power switch switches the drive motor 23 from a disconnected state to a closed state. The circuit can be powered by a 6-24V battery 241, at which point the drive motor 23 is energized. Continuing to rotate the ball feeding rhythm adjustment knob on the control switch adjusts the rotational speed of the drive motor 23, thereby adjusting the speed of the ball feeding rhythm of the ball driving structure 21. In the above circuit, a 6-24V battery 241 is used as the power source. The battery 241 is connected to an external power source via a power charging port 245, such as an external 220V AC power source. A charging transformer is provided between the power charging port 245 and the external 220V AC power source, allowing the battery 241 to be charged via the external 220V AC power source, the power charging port 245, and the charging transformer (for step-down). The controller 4 may also include a power transformer. When the drive motor 23 is a DC motor, a power transformer is provided between the battery 241 and the drive motor 23 to boost the DC power from the 6-24V battery 241 to 36V. The connected ball feeding rhythm adjustment knob adjusts the speed of the DC motor to a suitable ball feeding rhythm. The ping-pong ball, delivered from the ball outlet 312 of the ball feeding pipe 31, is fed to the elastic structure 52 of the ball bouncing structure 5, and then transmitted to the table for beginners to practice on. Alternatively, the power transformer can be replaced by a current controller from the prior art. The aforementioned power switch is not limited to push-button or rotary switches, and the aforementioned ball supply rhythm adjustment knob can be a rotary adjustment knob. Generally, both the power switch and the ball supply rhythm adjustment knob use existing control switches, which will not be described in detail here.

[0063] As an optional implementation, the ball-driving mechanism 2 of the table tennis training machine is fixedly connected to the base; the base is located below the ball storage structure 1 and is fixedly connected to the bottom of the ball storage structure 1. A drive motor 23 is fixedly installed inside the base. Figure 1 and Figure 2 As shown, the output shaft 231 of the drive motor 23 is fixedly connected to the rotation shaft 2123 of the double-layer ball-driving disc 212, and the rotation axis of the output shaft 231 is consistent with the rotation axis of the rotation shaft 2123. The bottom of the ball storage structure 1 has a through hole, through which the rotating shafts of the drive motor 23 and the ball-driving structure 21 pass and are fixed together.

[0064] As an optional implementation, the ball-driving structure 21 includes: a double-layer ball-driving disc 212 and a ball-blocking baffle 213 located beside the communication port 11; the double-layer ball-driving disc 212 includes an upper ball-driving disc 2121, a lower ball-driving disc 2122, and a rotating shaft 2123. The dimension from the rotatable edge of the double-layer ball-driving disc 212 to the inner wall of the ball storage structure 1 is smaller than the diameter of the ping-pong ball, so as to ensure that the ping-pong ball entering the lower region of the ball storage structure 1 cannot pass through the gap between the rotatable edge of the double-layer ball-driving disc 212 and the inner wall of the ball storage structure 1.

[0065] In this invention, the rotation center of the upper ball-handling disc 2121 and the rotation center of the lower ball-handling disc 2122 are fixedly connected by a rotating shaft 2123, which is connected to the output shaft 231. When the base is located below the ball storage structure 1 and fixedly connected to 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.

[0066] In this invention, the ball-blocking baffle 213 is fixed to the inner wall of the ball storage structure 1 on one side of the connecting port 11. The ball-blocking baffle 213 extends toward the side of the rotating shaft 2123 opposite to the connecting port 11. The length of the ball-blocking baffle 213 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 connecting port 11 and the other end of the ball-blocking baffle 213 is greater than the diameter of the ping-pong ball, so as to ensure 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-driving disc 212 to the connecting port 11 on one side of the ball-blocking baffle 213. The height of the ball-blocking baffle 213 is less than the distance from the upper ball-dispensing plate 2121 to the bottom wall of the ball storage structure 1. The ball-blocking baffle 213 is placed below the upper ball-dispensing plate 2121 to ensure that it blocks the ping-pong ball driven by the double-layer ball-dispensing plate 212 in the lower part of the ball storage structure 1 to the connecting port 11. This allows the ping-pong ball in the lower part of the ball storage structure 1 to be squeezed outward from the connecting port 11 and output under the action of the double-layer ball-dispensing plate 212, the ball-blocking baffle 213 located next to the connecting port 11, and the inner wall of the lower part of the ball storage structure 1.

[0067] As an optional implementation, the ball-blocking baffle 213 is provided with a baffle notch 2131 at the position of the lower ball-dispensing plate 2122. The height of the baffle notch 2131 is greater than the thickness of the lower ball-dispensing plate 2122, so that the ball-dispensing blades of the lower ball-dispensing plate 2122 can pass smoothly through the baffle notch 2131 on the ball-blocking baffle 213 when rotating.

[0068] As an optional implementation, the bottom of the ball-blocking baffle 213 can be fixed to the bottom wall of the ball storage structure 1, or one end of the ball-blocking baffle 213 can be fixed to the side wall of the ball storage structure 1 and the bottom end of the ball-blocking baffle 213 can be fixed to the bottom wall of the ball storage structure 1, so as to enhance the stability of the ball-blocking baffle 213.

[0069] As an optional implementation, the height of the ball-blocking baffle 213 can be greater than the upper surface of the upper ball-dispensing disc 2121. The ball-blocking baffle 213 is provided with multiple baffle notches 2131, the height of which is greater than the thickness of the upper ball-dispensing disc 2121, to ensure that the ping-pong ball can pass smoothly through the baffle notches 2131 on the ball-blocking baffle 213 when the ball-dispensing blades of the upper ball-dispensing disc 2121 are rotating.

[0070] As an optional implementation, the upper ball-dispensing plate 2121 has at least one ball-dispensing plate notch 2124, and the lower ball-dispensing plate 2122 has a corresponding ball-dispensing plate notch 2124 at a position relative to the ball-dispensing plate notch 2124 of the upper ball-dispensing plate 2121; the size of the ball-dispensing plate notch 2124 is larger than the size of the ping-pong ball. The space of the ball-feeding plate notch 2124 is only large enough to hold one ping-pong ball, so that the ping-pong ball transferred to the lower area of ​​the ball storage structure 1 can be located in the ball-feeding plate notch 2124. The ping-pong ball in the ball-feeding plate notch 2124 is transferred to the ball-blocking baffle 213 under the action of rotation. Then, under the pushing action of the ball-feeding blade of the lower ball-feeding plate 2122, combined with the action of the upper ball-feeding plate 2121, the ball-blocking baffle 213 and the inner wall of the ball storage structure 1, the ping-pong ball in the ball-feeding plate notch 2124 is squeezed to the connecting port 11. The ping-pong ball in the ball storage structure 1 is then driven into the S-shaped feeding pipe 31 through the connecting port 11.

[0071] As an optional implementation method, such as Figures 2 to 4As shown, the upper ball-feeding plate 2121 has four symmetrically distributed ball-feeding plate notches 2124; and the lower ball-feeding plate 2122 has correspondingly symmetrically distributed ball-feeding plate notches 2124. This invention, through the symmetrically distributed four ball-feeding plate notches 2124, enables the four ping-pong balls stored within the ball-feeding plate notches 2124 of the double-layer ball-feeding plate 212 to be driven sequentially into the S-shaped feeding pipe 31 at a predetermined rhythm when the double-layer ball-feeding plate 212 rotates. This ensures that the rhythm of the ping-pong ball output from the ping-pong training machine into the S-shaped feeding pipe 31 remains stable and constant, thus guaranteeing a consistent interval (e.g., ball-feeding rhythm) between each ping-pong ball feeding from the ball outlet 321 of the S-shaped feeding pipe 31 to the elastic structure part 52. By adjusting the ball feeding rhythm knob in the control switch of the controller 4, the speed of the drive motor 23 is adjusted to a suitable ball feeding rhythm for beginners. The four symmetrically distributed ball feeding disc notches 2124 can ensure the stability of feeding ping-pong balls from the ball outlet 321 of the S-shaped ball feeding pipe 31 to the elastic structure part 52 each time, so that the elastic structure part 52 can further achieve more accurate and realistic ball feeding for training.

[0072] As an optional implementation method, such as Figure 2 and Figure 4 As shown, the inner edge of the notch 2124 of the ball-handling disc has an arc-shaped structure; the arc-shaped structure at the upstream position along the rotation direction is an arc-shaped structure convex outwards towards the notch 2124 of the ball-handling disc; the arc-shaped structure at the downstream position along the rotation direction is an arc-shaped structure convex inwards towards the notch 2124 of the ball-handling disc (see...). Figures 2 to 4 (As shown). The arc-shaped structure at the inner edge of the ball-feeding disc notch 2124 downstream of the rotation direction is smoother than the arc-shaped structure at the downstream position of the rotation direction. The arc-shaped structure of the lower ball-feeding disc 2122 downstream of the rotation direction is consistent with the arc-shaped structure at the inner edge of the ball-feeding disc notch 2124 downstream of the rotation direction. The dimension from the bottom surface of the lower ball-feeding disc 2122 to the bottom of the ball storage structure 1 is larger than the diameter of the ping-pong ball, so that the lower ball-feeding disc 2122 contacts the upper part of the ping-pong ball. The arc-shaped structure of the lower ball-feeding disc 2122 downstream of the rotation direction enables the ping-pong ball located in the ball-feeding disc notch 2124 to be smoothly driven through the connecting port 11 into the S-shaped feeding pipe 31 under the action of rotation.

[0073] As an optional implementation, the height of the ball outlet 312 on the ball feeding pipe 31 is higher than the height of the connecting port 11. In this embodiment, the S-shaped ball feeding pipe 31 is composed of multiple sections of plastic pipe spliced ​​together. In use, the S-shaped ball feeding pipe 31 has a suitable length, which allows the free end of the ball outlet 312 to be set at a usable height from the table position, making the slow and gentle ball feeding through the ball outlet 312 accurate and stable. The ping-pong ball transmitted from the ball outlet 312 slides onto the elastic structure part 52 below, bounces off the elastic panel 522 of the elastic structure part 52, and is then transmitted to the beginner's table. The bounce-type passing through the ball structure 5 makes the ping-pong ball transmitted to the beginner's table more realistic and more suitable for beginner training.

[0074] As an optional implementation method, such as Figure 1 and Figure 6 As shown, the ball-and-ball structure 5 includes a flexible structure portion 51 and an elastic structure portion 52; the elastic structure portion 52 includes a panel fixing assembly 521 and an elastic panel 522 disposed on the panel fixing assembly 521; the elastic panel 522 is located below the free end and faces the ball outlet 312 of the free end; the panel fixing assembly 521 is fixedly connected to the flexible structure portion 51.

[0075] As an optional implementation method, such as Figure 12 As shown, a directional adjustment assembly 6 can be provided between the top of the flexible structure 51 and the elastic structure 52. The directional adjustment assembly 6 includes a directional adjustment base 61, a directional adjustment ball 62, and a directional adjustment rod 63. The directional adjustment ball 62 is located within the accommodating space of the directional adjustment base 61, which has bolt holes and is fixedly connected to the bottom of the elastic structure 52 by bolts. The directional adjustment rod 63 is fixedly connected to the flexible structure 51. The rotation of the directional adjustment ball 62 requires a certain force. The directional adjustment base 61, the directional adjustment ball 62, and the directional adjustment rod 63, when their orientations are adjusted, can maintain the stable structural shape of the directional adjustment structure, which is used to adjust the direction of the ball when the elastic structure 52 passes the ball.

[0076] As an optional implementation, the panel fixing assembly 521 includes: a supporting base plate 5211 and a limiting member 5212 disposed on the upper edge of the supporting base plate 5211; the elastic panel 522 is fixedly disposed on the upper surface of the supporting base plate 5211. Figure 13 As shown, the limiting member 5212 is a folded plate structure with a certain degree of toughness, which can clamp the ping-pong paddle to the upper surface of the elastic panel 522.

[0077] In this utility model, the limiting member 5212 can also be multiple limiting rings with a certain degree of toughness, such as... Figure 14As shown, there are multiple limiting rings with certain elastic deformation and toughness. The limiting rings have an open structure on one side of the upper surface of the elastic panel 522, which can clamp and fix the ping-pong paddle to the upper surface of the elastic panel 522.

[0078] As an optional implementation method, such as Figure 7 , Figure 8 As shown, the flexible structure 51 is an adjustable first flexible rod 511 and / or a first flexible hose 512. For example, the flexible structure 51 can be an adjustable first flexible rod 511 made of a metal rod or a resilient plastic material. Examples include a metal wire / rod structure or a plastic flexible rod with bending resilience. The shape of the metal flexible rod and the plastic flexible rod can be set to a preset structural form. Figure 7 The structural form of the flexible structure 51. One end of the first flexible rod 511 is fixed to the bottom of the panel fixing assembly 521, and the other end is fixed to one of the three components: the ball storage structure 1, the base, and the ball feeding structure 3. For example, the first flexible rod 511 is made of iron wire and a coating layer with a certain toughness and hardness. It can be fixed and shaped after being bent. The fixed structure has a certain degree of flexibility and can support a certain weight. For example, the first flexible rod 511 supports the elastic structure 52. The elastic structure 52 corresponds to the port 312 at the free end. The ping-pong ball is passed out of the port 312 at the free end in a dropping manner. When the ball bounces in the elastic structure 52, the first flexible rod 511 is deformed by pressure, which reduces the hitting force on the ping-pong ball falling out of the port 312 at the free end. This makes the ping-pong ball passed through the first flexible rod 511 more realistic and easier for beginners to hit with the correct hitting method. The first flexible rod 511 can be bent and deformed, and the direction or position of the port 312 at the free end of the elastic structure 52 can be adjusted by bending and deforming to facilitate the passing of the ball by the elastic structure 52.

[0079] In this invention, the flexible structure 51 is an adjustable first flexible hose 512. For example, when the flexible structure 51 is a bendable and adjustable first flexible hose 512, one end of the first flexible hose 512 is fixedly connected to the bottom of the panel fixing assembly 521, and the other end is fixedly connected to one of the three components: the ball storage structure 1, the base, and the ball feeding structure 3. For example... Figure 1In this configuration, the first flexible hose 512 is fixedly connected to the ball feeding pipe 21 of the ball feeding structure 3. The first flexible hose 512 is not limited to the aforementioned helical spring made of hard metal (not shown in the figure). One end of the helical spring is made of hard steel, and the other end can be made of metal iron with a certain degree of hardness, forming the first flexible hose 512 in a helical spring structure. This helical spring has a certain fixing structure and toughness. A plastic or rubber layer folded along the axis of the helical spring covers the first flexible hose 512. The first flexible hose 512 can support the panel fixing assembly 521 and the elastic panel 522 on the elastic structure 52. When the ball is ejected from the ball outlet 312 at the free end of the elastic panel 522, the tough helical spring undergoes a slight deformation, allowing the ball ejected from the elastic structure 52 supported by it to be more realistic and with a softer speed, making it easier for beginner table tennis players to receive the ball.

[0080] In this invention, the flexible structure 51 can also be a flexible columnar structure with a fixed structural form (such as a bent structural state) composed of the first flexible rod 511 and the first flexible hose 512, which will not be described in detail here.

[0081] As an optional implementation method, such as Figure 9 As shown, the flexible structure 51 includes a second flexible rod 514 that can be bent and adjusted, and a second tube structure 515 that can be extended and retracted. One end of the second tube structure 515, which can be extended and retracted, is fixedly connected to the bottom of the panel fixing assembly 521, and the other end is fixedly connected to one end of the second flexible rod 514 (as shown in the enlarged area A). The other end of the second flexible rod 514 is fixedly connected to one of the ball storage structure 1, the base, and the ball feeding structure 3. The above-mentioned flexible structure 51 constitutes a columnar structure with a fixed structural form (such as a bent structural state) (see...). Figure 1 , Figure 6 and Figure 9 The second flexible rod 514 is a flexible, bendable rod with a certain degree of toughness and a supporting function. It can be a metal rod with a supporting function (such as a wire or iron pillar structure). The second tube structure 515 is a multi-segment tube structure that can be extended and adjusted, similar to the at least two extensionable and adjustable second tube structures 515 on a hiking pole or selfie stick.

[0082] As an optional implementation method, such as Figures 9 to 13As shown, the second tube structure 515 comprises two sections: a lower second tube structure 515a and an upper second tube structure 515b. The lower second tube structure 515a and the upper second tube structure 515b are fastened together by a fastener 515c. The fastener 515c consists of a fastening clamp 515c1, a pressing post 515c2, a connecting post 515c3, and a fastening handle 515c4. The lower second tube structure 515a may have an opening or not. When the fastening handle 515c4 is in the open state, one end of the upper second tube structure 515b can be inserted into or protrude from the lower second tube structure 515a. After the upper second tube structure 515b is adjusted into position, the fastening handle 515c4 is moved to the pressed and tightened state, at which point the lower second tube structure 515a and the upper second tube structure 515b are fastened together. The second tube structure 515 can be telescopically adjusted via the fastening handle 515c4 to adjust the panel fixing assembly 521 to a suitable height.

[0083] As an optional implementation, the axis of the ball feeding pipe 31 at the ball outlet and the axis of the ball feeding pipe 31 at the ball inlet can also be of a non-planar structure. This invention sets the ball feeding pipes 31 at both ends of the S-shaped ball feeding pipe 31 to a non-planar structure, further enhancing the flexibility of the table tennis training machine's placement around the table, and also ensuring that the direction of ball feeding from the ball outlet 312 can be more flexibly adjusted according to the beginner's stance or actual hitting action.

[0084] As an optional implementation method, such as Figure 15 As shown, a notch 3121 is provided on the side of the ball outlet 312 facing the ball-launching structure 5. The notch 3121 is an arc-shaped structure, which allows the ping-pong ball transmitted from the ball feeding pipe 31 to the ball outlet 312 to be limited by the inner wall of the ball feeding pipe on both sides of the notch 3121 under the action of gravity. Under the limiting action of the inner wall of the ball feeding pipe, the ball is accurately transmitted to the elastic structure part 52 through the notch 3121 below the ball outlet 312. This reduces the possibility that the position and direction of the ping-pong ball before falling at the ball outlet 312 of the ball feeding pipe 31 may change slightly, affecting the ball feeding effect.

[0085] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Although this application has disclosed preferred embodiments as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A table tennis training aid machine, characterized in that, include: The ball storage structure (1), the ball driving mechanism (2), the ball feeding structure (3) connected to the lower part of the ball storage structure (1), the controller (4) located on the base and connected to the ball driving mechanism (2), and the flexible ball bouncing structure (5). The bottom end of the ball storage structure (1) is fixedly connected to the top end of the base, and the base is fixedly connected to the ball driving mechanism (2); The ball driving mechanism (2) has a rotatable ball driving structure (21), which is located in the lower region of the ball storage structure (1); The ball feeding structure (3) is a ball feeding pipe (31); One end of the ball feeding pipe is connected to the communication port (11) in the lower side area of ​​the ball storage structure (1); the communication port (11) is set opposite to the ball driving structure (21); The controller (4) is equipped with a control switch for turning the ball drive mechanism (2) on or off, and for adjusting the rotation speed of the ball drive structure (21); One end of the ball structure (5) is located below the ball outlet (312) of the ball feeding pipe (31) and opposite to the ball outlet (312) of the ball feeding pipe (31), while the other end is fixed to one of the three components: the ball storage structure (1), the base, and the ball feeding structure (3).

2. The table tennis training aid machine according to claim 1, characterized in that, The ball drive mechanism (2) also includes: a drive motor (23); The output shaft (231) of the drive motor (23) is connected to the ball drive structure (21); The housing of the drive motor (23) is fixedly connected to the base.

3. The table tennis training aid machine according to claim 2, characterized in that, The ball-driving structure (21) includes: a double-layer ball-driving disc (212) and a ball-blocking baffle (213) located beside the communication port (11); The double-layer ball-handling plate (212) includes an upper ball-handling plate (2121), a lower ball-handling plate (2122), and a rotating shaft (2123); The dimension from the rotatable edge of the double-layer ball-dispensing plate (212) to the inner wall of the ball storage structure (1) is smaller than the diameter of the ping-pong ball; The rotation center of the upper ball-handling plate (2121) and the rotation center of the lower ball-handling plate (2122) are fixedly connected by a rotating shaft (2123), and the rotating shaft (2123) is connected to the output shaft (231). The ball-blocking baffle (213) is fixed to the inner wall of the ball storage structure (1) on one side of the communication port (11), and the ball-blocking baffle (213) extends toward the direction of the rotation axis (2123) and the communication port (11).

4. The table tennis training aid machine according to claim 3, characterized in that, The ball-blocking baffle (213) has a baffle notch (2131) at the position relative to the lower ball-dispensing plate (2122), and the height of the baffle notch (2131) is greater than the thickness of the lower ball-dispensing plate (2122).

5. The table tennis training aid machine according to claim 3, characterized in that, The upper ball-handling plate (2121) has at least one ball-handling plate notch (2124), and the lower ball-handling plate (2122) has a corresponding ball-handling plate notch (2124) at the position opposite to the ball-handling plate notch (2124) of the upper ball-handling plate (2121). The size of the notch (2124) on the ball-handling plate is larger than the size of the ping-pong ball.

6. The table tennis training aid machine according to claim 1, characterized in that, The ball-and-ball structure (5) includes a flexible structural part (51) and an elastic structural part (52); The elastic structure (52) includes: a panel fixing assembly (521) and an elastic panel (522) disposed on the panel fixing assembly (521); The elastic panel (522) is located below the ball outlet (312) and opposite to the ball outlet (312); The panel fixing assembly (521) is fixedly connected to the flexible structure part (51).

7. The table tennis training aid machine according to claim 6, characterized in that, The panel fixing assembly (521) includes: a support base plate (5211) and a limiting member (5212) disposed on the upper edge of the support base plate (5211); The elastic panel (522) is fixed to the upper surface of the support base plate (5211).

8. The table tennis training aid machine according to claim 6, characterized in that, The flexible structure (51) is an adjustable flexible rod (511) and / or a flexible hose (512).

9. The table tennis training aid machine according to claim 6, characterized in that, The flexible structure (51) includes a second flexible rod (514) that can be bent and adjusted, and a second tube structure (515); One end of the second tube structure (515) is telescopically adjustable and is fixed to the bottom of the panel fixing assembly (521), while the other end is fixed to one end of the second flexible rod (514). The other end of the second flexible rod (514) is fixed to one of the three components: the ball storage structure (1), the base, and the ball feeding structure (3).

10. The table tennis training aid machine according to claim 1, characterized in that, A notch (3121) is provided on the side of the ball outlet (312) facing the ball structure (5).

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