Multi-functional tennis ball picking training device
By designing a multifunctional tennis ball retriever training device with a ball-picking, storage, and positioning mechanism, the problem of cumbersome operation of existing ball retrievers has been solved, achieving efficient tennis ball retrieval and storage, and improving training efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI INST OF PHYSICAL EDUCATION
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-28
AI Technical Summary
Existing tennis ball retrievers are cumbersome to operate, resulting in low work efficiency.
A multifunctional tennis ball retrieval training device was designed, which includes a ball retrieval mechanism, a storage mechanism, a positioning mechanism, and a fixing mechanism. By adjusting the spring length and the disc structure, it can automatically pick up tennis balls and quickly collect and store them through the positioning and fixing mechanisms.
It improves the efficiency of ball retrieval, is easy to operate, does not affect the use by trainees, and achieves efficient tennis ball retrieval and storage.
Smart Images

Figure CN224558000U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tennis training equipment technology, specifically a multifunctional tennis ball retrieval training device. Background Technology
[0002] A tennis trainer is a mechanical device used to improve tennis skills. It helps players practice different tennis movements and techniques. To facilitate practice, a training ball is needed to pick up tennis balls from the ground, thus improving the efficiency of player training.
[0003] A tennis ball retriever, with announcement number CN213884938U, comprises a box as its main body. A lever is installed inside the box, and the lever is connected to the top of the box via a limiting block. The lever and the limiting block are connected via a rotating shaft. A limiting plate is installed on the bottom of one end of the lever, and a collection groove is located at the bottom of the limiting plate. An installation rod is installed at the bottom of the collection groove. A top post is connected to the bottom of one end of the lever, and a first installation groove is located on the bottom of the top post. Rollers are evenly distributed on the bottom of the box, and a handle is located on the top of the box. When in use, a pedal can be pressed to move the rollers downwards, causing the tennis ball to elastically deform and pass through the gaps in the rollers into the collection groove, thus achieving the ball retrieval function. This semi-automatic operation solves the problem of poor ball retrieval efficiency.
[0004] The tennis ball retriever described above also has a problem: during the ball retrieval process, the operator needs to frequently step on the pedal to pick up the tennis balls on the ground, which is cumbersome and results in low working efficiency. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] Given that the existing ball picker is cumbersome to operate, resulting in low working efficiency, the above-mentioned prior art has been addressed.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] Multi-functional tennis ball retrieval training device, including:
[0009] The box has a ball-collecting mechanism rotatably mounted on one side, a storage mechanism on the side of the box, a positioning mechanism at the other end of the box, and a fixing mechanism on the back of the box.
[0010] The ball-collecting mechanism includes a disc symmetrically and rotatably mounted on one side of the box. A metal wire is evenly slidably inserted at the inner edge of the disc. First limit caps are fixed at both ends of the metal wire. A metal disc is slidably fitted at one end of the metal wire. A first spring is fixedly connected between the metal disc and the first limit cap. A threaded rod is rotatably mounted at the center of the side of the disc. A threaded seat is fixed at the center of the metal disc. The threaded rod and the threaded seat are rotatably connected. A helical blade is fixed on the inner side of the disc.
[0011] As a further embodiment of this utility model: the storage mechanism includes a through hole opened on the side of the box, an arc-shaped seat fixed on the side of the through hole, and a housing rotatably mounted on the arc-shaped seat.
[0012] As a further embodiment of this utility model: a collection shell is fixed to one end of the housing, the collection shell is rotatably connected to the disc through a limiting seat, and an input port is opened on the side of the disc located inside the collection shell.
[0013] As a further embodiment of this utility model: the positioning mechanism includes a connecting rod rotatably mounted on the side of the box, one end of the connecting rod is fixed with a ring, and a rotating seat is fixed on the side of the disc.
[0014] As a further embodiment of this utility model: the ring is rotatably mounted on the rotating seat, and positioning holes are respectively opened on the side of the box in the vertical and horizontal directions. A plug rod is slidably inserted into the side of the connecting rod, and a second limiting cap is fixed at one end of the plug rod.
[0015] As a further embodiment of this utility model: a second spring is fixedly connected between the second limiting cap and the connecting rod, and one end of the insertion rod is inserted and installed inside the positioning hole.
[0016] As a further embodiment of this utility model: the fixing mechanism includes a mounting base fixed to the back side of the box, and a movable door is rotatably installed on the inner side of the mounting base.
[0017] As a further improvement of this utility model: a connecting seat is fixed at one end of the movable door, and a fixing seat is fixed at one end of the back side of the box body, with the connecting seat fastened to the inside of the fixing seat.
[0018] As a further improvement of this utility model: a fixing rod is inserted and installed inside the fixing seat, and the fixing rod slides through the inside of the connecting seat.
[0019] As a further improvement of this utility model: a base is fixed to the bottom side of the box, and directional wheels are fixedly installed at the four corners of the bottom side of the base, and a push rod is fixed to one end of the bottom side of the base.
[0020] Compared with the prior art, the beneficial effects of this utility model are:
[0021] This invention, through the structure of the ball-collecting mechanism and by adjusting the compression length of the first spring, can be adapted to tennis balls of different diameters. When the disc rolls to the tennis ball, it can be collected inside the disc. The operation is simple and the ball-collecting efficiency is higher, without affecting the user's training. Attached Figure Description
[0022] Figure 1 A schematic diagram of a multi-functional tennis ball retrieval training device;
[0023] Figure 2 A front sectional view of the ball-collecting mechanism of a multi-functional tennis ball-collecting trainer.
[0024] Figure 3 A side sectional view of the storage mechanism of a multi-functional tennis ball retriever training device;
[0025] Figure 4 A frontal sectional view of the positioning mechanism of a multi-functional tennis ball retrieval trainer;
[0026] Figure 5 This is a rear sectional view of the fixing mechanism of a multi-functional tennis ball retrieval trainer.
[0027] In the diagram: 1. Box body; 101. Ball picking mechanism; 102. Storage mechanism; 103. Positioning mechanism; 104. Fixing mechanism; 2. Disc; 3. Metal wire; 4. First limit cap; 5. Metal disc; 6. First spring; 7. Threaded seat; 8. Threaded rod; 10. Input port; 11. Limit seat; 12. Collection shell; 13. Spiral blade; 14. Arc-shaped seat; 15. Through hole; 16. Shell; 17. Base; 18. Directional wheel; 19. Connecting rod; 20. Ring; 21. Rotating seat; 22. Insert rod; 23. Second limit cap; 24. Second spring; 25. Positioning hole; 26. Mounting seat; 27. Movable door; 28. Connecting seat; 29. Fixing seat; 30. Fixing rod; 31. Push rod. Detailed Implementation
[0028] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.
[0031] Example 1:
[0032] Please see Figures 1-3 This is the first embodiment of the present invention.
[0033] This embodiment provides a multi-functional tennis ball retrieval training device, including:
[0034] Box 1, a ball-collecting mechanism 101 is rotatably installed on one side of box 1, a storage mechanism 102 is provided on the side of box 1, a positioning mechanism 103 is provided at the other end of box 1, and a fixing mechanism 104 is provided on the back of box 1.
[0035] The ball-collecting mechanism 101 includes a disc 2 symmetrically rotated and installed on one side of the housing 1. A metal wire 3 is evenly slidably inserted at the inner edge of the disc 2. A first limit cap 4 is fixed at both ends of the metal wire 3. A metal disc 5 is slidably fitted at one end of the metal wire 3. A first spring 6 is fixedly connected between the metal disc 5 and the first limit cap 4. A threaded rod 8 is rotatably installed at the center of the side of the disc 2. A threaded seat 7 is fixed at the center of the metal disc 5. The threaded rod 8 and the threaded seat 7 are rotatably connected. A spiral blade 13 is fixed inside the disc 2.
[0036] Specifically, the storage mechanism 102 includes a through hole 15 on the side of the box 1, an arc-shaped seat 14 fixed on the side of the through hole 15, a housing 16 rotatably mounted on the arc-shaped seat 14, a collection shell 12 fixed at one end of the housing 16, the collection shell 12 being rotatably connected to the disc 2 through a limiting seat 11, and an input port 10 being opened on the side of the disc 2 inside the collection shell 12.
[0037] Furthermore, the tennis balls inside the disc 2 can be temporarily moved to the inside of the collection shell 12 through the through hole 15. After collection, when the disc 2 is put away, the tennis balls fall into the inside of the box 1 through the arc-shaped seat 14 inside the shell 16, where they are stored for use by trainers.
[0038] In use, the disc 2 is moved to a position horizontal with the box 1. At this time, the threaded rod 8 can be rotated, so that with the cooperation of the threaded seat 7, the metal disc 5 slides along the direction of the metal wire 3, thereby changing the length of the first spring 6. When the tennis ball passes between the metal wires 3, it can squeeze the metal wires 3 to undergo elastic deformation, thereby entering the inner side of the disc 2. Then, the disc 2 drives its inner spiral blade 13 to rotate, pushing the tennis ball inside to one side of the collection shell 12, so that it enters the inner side of the collection shell 12 through the inlet 10 for temporary storage.
[0039] In summary, by adjusting the compression length of the first spring 6, the ball-collecting mechanism 101 can be adapted to tennis balls of different diameters. When the disc 2 rolls to the tennis ball, it can be collected inside the disc 2. The operation is simple and the ball-collecting efficiency is higher, without affecting the user's training.
[0040] Example 2:
[0041] Please see Figures 4-5 This is the second embodiment of the present utility model.
[0042] Specifically, the positioning mechanism 103 includes a connecting rod 19 rotatably mounted on the side of the housing 1. One end of the connecting rod 19 is fixed with a ring 20. A rotating seat 21 is fixed on the side of the disc 2. The ring 20 is rotatably mounted on the rotating seat 21. Positioning holes 25 are respectively opened in the vertical and horizontal directions on the side of the housing 1. An insert rod 22 is slidably inserted through the side of the connecting rod 19. One end of the insert rod 22 is fixed with a second limit cap 23. A second spring 24 is fixedly connected between the second limit cap 23 and the connecting rod 19. One end of the insert rod 22 is inserted into the inside of the positioning hole 25.
[0043] Furthermore, through the structure of the spring and the insert rod 22, the disc 2 can be precisely moved to the side or top of the box 1, making it convenient to pick up or collect tennis balls. The operation is simple and easy to use.
[0044] Specifically, the fixing mechanism 104 includes a mounting base 26 fixed to the back side of the housing 1. A movable door 27 is rotatably mounted inside the mounting base 26. A connecting seat 28 is fixed to one end of the movable door 27. A fixing seat 29 is fixed to one end of the back side of the housing 1. The connecting seat 28 is fastened to the inside of the fixing seat 29. A fixing rod 30 is inserted through the inside of the fixing seat 29, and the fixing rod 30 slides through the inside of the connecting seat 28.
[0045] Furthermore, the structure of the fixing seat 29 of the fixing rod 30 allows the movable door 27 to be opened and closed quickly, making it convenient for trainees to take out tennis balls for training.
[0046] Specifically, a base 17 is fixed to the bottom side of the box 1, and directional wheels 18 are fixedly installed at the four corners of the bottom side of the base 17. A push rod 31 is fixed to one end of the bottom side of the base 17.
[0047] Furthermore, the push rod 31 allows trainees to easily push the box 1, thereby improving the efficiency of ball retrieval.
[0048] When using the device, to pick up tennis balls, pull the second limit cap 23 to extend the insertion rod 22. With the assistance of the connecting rod 19, rotate the disc 2 to a horizontal position on the box 1, ensuring the disc 2 is in contact with the ground. Release the second limit cap 23, and the second spring 24 will push the insertion rod 22 through the positioning hole 25 on the horizontal side, fixing the disc 2 in place. Then, push the push rod 31 to move the box 1 and disc 2 with the assistance of the directional wheel 18, picking up tennis balls from the ground. After collection, similarly extend the insertion rod 22. With the assistance of the connecting rod 19, rotate the disc 2 to the top of the box 1, causing the tennis balls inside to fall into the box 1 for centralized storage. When needed, pull out the fixing rod 30 to open the movable door 27, allowing the tennis balls inside the box 1 to be retrieved. The operation is simple and convenient.
[0049] In summary, the positioning mechanism 103 and the fixing mechanism 104 can quickly unfold or retract the disc 2 before and after picking up the tennis ball, thereby picking it up and collecting it inside the box 1 for use by trainees.
[0050] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0051] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0052] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. Multifunctional tennis ball retrieval training device, including: The box (1) is characterized in that: a ball-collecting mechanism (101) is rotatably installed on one side of the box (1), a storage mechanism (102) is provided on the side of the box (1), a positioning mechanism (103) is provided at the other end of the box (1), and a fixing mechanism (104) is provided on the back side of the box (1). The ball-collecting mechanism (101) includes a disc (2) symmetrically rotated and installed on one side of the box (1). A metal wire (3) is evenly slidably inserted at the inner edge of the disc (2). A first limiting cap (4) is fixed at both ends of the metal wire (3). A metal disc (5) is slidably fitted at one end of the metal wire (3). A first spring (6) is fixedly connected between the metal disc (5) and the first limiting cap (4). A threaded rod (8) is rotatably installed at the center of the side of the disc (2). A threaded seat (7) is fixed at the center of the metal disc (5). The threaded rod (8) is rotatably connected to the threaded seat (7). A spiral blade (13) is fixed inside the disc (2).
2. The multifunctional tennis ball retrieval training device according to claim 1, characterized in that: The storage mechanism (102) includes a through hole (15) on the side of the box (1), an arc-shaped seat (14) is fixed on the side of the through hole (15), and a housing (16) is rotatably mounted on the arc-shaped seat (14).
3. The multifunctional tennis ball retrieval training device according to claim 2, characterized in that: One end of the housing (16) is fixed with a collection shell (12). The collection shell (12) is rotatably connected to the disc (2) through a limiting seat (11). The disc (2) has an input port (10) on its side inside the collection shell (12).
4. The multifunctional tennis ball retrieval training device according to claim 1, characterized in that: The positioning mechanism (103) includes a connecting rod (19) rotatably mounted on the side of the housing (1), with a ring (20) fixed at one end of the connecting rod (19) and a rotating seat (21) fixed on the side of the disc (2).
5. The multifunctional tennis ball retrieval training device according to claim 4, characterized in that: The ring (20) is rotatably mounted on the rotating seat (21). The side of the box (1) is provided with positioning holes (25) in the vertical and horizontal directions respectively. The connecting rod (19) is slidably inserted with a plug (22) on its side. One end of the plug (22) is fixed with a second limiting cap (23).
6. The multifunctional tennis ball retrieval training device according to claim 5, characterized in that: A second spring (24) is fixedly connected between the second limiting cap (23) and the connecting rod (19), and one end of the insertion rod (22) is inserted into the inside of the positioning hole (25).
7. The multifunctional tennis ball retrieval training device according to claim 1, characterized in that: The fixing mechanism (104) includes a mounting base (26) fixed to the back side of the box (1), and a movable door (27) is rotatably installed on the inner side of the mounting base (26).
8. The multifunctional tennis ball retrieval training device according to claim 7, characterized in that: One end of the movable door (27) is fixed with a connecting seat (28), and one end of the back of the box (1) is fixed with a fixing seat (29). The connecting seat (28) is fastened to the inside of the fixing seat (29).
9. The multifunctional tennis ball retrieval training device according to claim 8, characterized in that: A fixing rod (30) is inserted into the inner side of the fixing seat (29), and the fixing rod (30) slides through the inner side of the connecting seat (28).
10. The multifunctional tennis ball retrieval training device according to claim 1, characterized in that: A base (17) is fixed to the bottom side of the box (1), and directional wheels (18) are fixedly installed at the four corners of the bottom side of the base (17). A push rod (31) is fixed to one end of the bottom side of the base (17).