Tennis training ball picking device

Abstract

The utility model belongs to the technical field of ball picking equipment, and particularly relates to a tennis training ball picking device which comprises a moving trolley and a ball picking mechanism carried at the front end of the moving trolley, the ball picking mechanism comprises a mounting frame and a ball picking frame, and the mounting frame is fixedly connected with the front end of the moving trolley and is of a U-shaped structure in the longitudinal direction. The ball picking frame comprises two annular discs and a plurality of connecting rods, fork-shaped supports are integrally formed in the centers of the two annular discs, the inner sides of the annular discs are divided into a plurality of taking-out openings through the fork-shaped supports, the centers of the two annular discs are rotationally connected with the two longitudinal sides of the mounting frame respectively, and the two annular discs are connected through the connecting rods; the opening of the taking-out opening is larger than the diameter of the tennis ball, the fork-shaped support is provided with a leakage-proof assembly corresponding to the taking-out opening, and the distance between every two adjacent connecting rods is smaller than the diameter of the tennis ball. By controlling the moving trolley to move and utilizing the ball picking mechanism of the moving trolley to pick up tennis balls on the ground, manual labor is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of ball-collecting equipment, specifically relating to a tennis training ball-collecting device. Background Technology

[0002] Tennis is a popular sport worldwide. In order to improve their tennis skills, athletes need to do a lot of training. When tennis players practice hitting or serving, the tennis balls will be scattered all over the training court. At this time, people need to pick up and collect the tennis balls scattered on the ground so that the athletes can continue to train.

[0003] Existing methods for retrieving tennis balls mostly involve sparring partners manually picking them up, which is inconvenient. To address this, we propose a tennis ball-retrieval device that controls the movement of a mobile cart and utilizes its ball-retrieval mechanism to pick up tennis balls from the ground, reducing manual labor. Utility Model Content

[0004] The purpose of this invention is to provide a tennis ball-collecting device for training, in order to solve the problems existing in the prior art.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A tennis training ball-collecting device includes a mobile trolley and a ball-collecting mechanism mounted on the front end of the mobile trolley. The ball-collecting mechanism includes a mounting frame and a ball-collecting rack. The mounting frame is fixedly connected to the front end of the mobile trolley and has a U-shaped structure in the longitudinal direction.

[0007] The ball-collecting rack includes two annular disks and several connecting rods. A fork-shaped bracket is integrally formed at the center of the two annular disks. The fork-shaped bracket divides the inner side of the annular disks into multiple retrieval outlets. The centers of the two annular disks are rotatably connected to the longitudinal sides of the mounting frame, respectively. The two annular disks are connected by each of the connecting rods, and the connecting rods are evenly arranged in an array along the circumference of the annular disks.

[0008] The outlet opening is larger than the diameter of a tennis ball, the fork-shaped bracket is equipped with a leak-proof component corresponding to the outlet, and the distance between two adjacent connecting rods is smaller than the diameter of a tennis ball.

[0009] The difference between the spacing between two adjacent connecting rods and the diameter of the tennis ball is 1-2 cm.

[0010] The leak-proof component includes several threading grooves and an elastic cord. Each threading groove is respectively disposed on each side of the fork-shaped bracket. The elastic cord passes through each threading groove to form a closed structure, and each side of the elastic cord equally divides each of the outlets. The opening of each outlet is 1.5 times the diameter of a tennis ball.

[0011] The annular disc is also provided with multiple buckles that correspond to each side of the elastic line.

[0012] The surface of the annular disk is also machined with several friction bumps.

[0013] The mobile vehicle is driven by tracked wheels and is also equipped with a battery module and a vision inspection module.

[0014] The connecting rod includes a hollow sleeve rod and two plug rods. The two plug rods are slidably connected to both ends of the hollow sleeve rod, and two springs are installed inside the hollow sleeve rod. The two springs are elastically fixed to the two plug rods respectively.

[0015] Each of the two annular discs has multiple sockets on its facing side that match the plug-in rod.

[0016] In the process of retrieving tennis balls during training, this invention involves a mobile trolley driving a ball-retrieval mechanism to the location of the tennis ball on the ground. During the movement of the trolley, the two circular discs of the ball-retrieval mechanism can also rotate relative to the mounting frame. When the ball-retrieval frame moves close to the tennis ball on the ground, two adjacent connecting rods will align with the tennis ball. As the trolley continues to move, the ball-retrieval frame will continue to rotate along with it. Since the tennis ball itself has a certain degree of elasticity, under the pressure of gravity from the ball-retrieval frame, the tennis ball can be squeezed and deformed, and squeezed into the interior of the ball-retrieval frame between the two adjacent connecting rods, thereby collecting the tennis ball on the ground and greatly facilitating the tennis ball retrieval work. Attached Figure Description

[0017] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0019] Figure 2 This is a schematic diagram of the module structure of Embodiment 1 of this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the connecting rod mounting structure according to Embodiment 2 of this utility model;

[0021] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A;

[0022] The symbols for the main components are explained below:

[0023] Mobile trolley 100, mounting frame 110, ball picker 111, circular disc 112, connecting rod 113, fork-shaped bracket 114, wire channel 1141, elastic line 1142, buckle 1143, outlet 115, friction protrusion 116;

[0024] Hollow sleeve rod 200, plug rod 201, spring 202, socket 203. Detailed Implementation

[0025] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0026] Example 1, such as Figure 1 and Figure 2 The tennis training ball-collecting device shown includes a mobile trolley 100 and a ball-collecting mechanism mounted on the front end of the mobile trolley 100. The ball-collecting mechanism includes a mounting frame 110 and a ball-collecting rack 111. The mounting frame 110 is fixedly connected to the front end of the mobile trolley 100 and has a U-shaped structure in the longitudinal direction.

[0027] The ball-collecting rack 111 includes two annular disks 112 and several connecting rods 113. A fork-shaped bracket 114 is integrally formed at the center of the two annular disks 112. The fork-shaped bracket 114 divides the inner side of the annular disks 112 into multiple retrieval outlets 115. The centers of the two annular disks 112 are rotatably connected to the longitudinal sides of the mounting frame 110 respectively. The two annular disks 112 are connected to each other by various connecting rods 113. The connecting rods 113 are evenly arranged in an array along the circumference of the annular disks 112.

[0028] The outlet 115 has an opening larger than the diameter of a tennis ball, and the fork-shaped bracket 114 is equipped with a leak-proof component corresponding to the outlet 115. The distance between two adjacent connecting rods 113 is smaller than the diameter of a tennis ball.

[0029] During tennis training ball retrieval, the mobile trolley 100 drives the ball retrieval mechanism to the position of the tennis ball on the ground. During the movement of the mobile trolley 100, the two annular disks 112 of the ball retrieval mechanism can also rotate relative to the mounting frame 110.

[0030] When the ball collection rack 111 moves close to the tennis ball on the ground, two adjacent connecting rods 113 will correspond to the tennis ball. As the moving cart 100 continues to move, the ball collection rack 111 will continue to rotate along with the moving cart 100. Since the tennis ball itself has a certain elasticity, under the pressure of gravity of the ball collection rack 111, the tennis ball can be squeezed and deformed and squeezed into the ball collection rack 111 through the two adjacent connecting rods 113, thereby collecting the tennis ball on the ground.

[0031] Meanwhile, since the distance between two adjacent connecting rods 113 is smaller than the diameter of the tennis ball, and the outlets 115 of the circular discs 112 on both sides are blocked by the leak-proof components, the tennis balls collected inside the ball collection rack 111 will not roll out of the ball collection rack 111 through the outlets 115 and between the two connecting rods 113.

[0032] This allows the mobile cart 100 to collect tennis balls scattered on the ground during tennis training, greatly facilitating the ball-collecting work.

[0033] After the mobile cart 100 finishes collecting the tennis balls scattered on the ground, people control the mobile cart 100 to return to the tennis ball collection position. People can then take the tennis balls out of the ball collection rack 111 and put them away from the outlet 115 by opening the leak-proof component.

[0034] As a further limitation on the spacing between two adjacent connecting rods 113 in this embodiment, the difference between the spacing between two adjacent connecting rods 113 and the diameter of the tennis ball is in the range of 1-2 cm.

[0035] The reason for this design is to ensure that the distance between the two connecting rods 113 is within a suitable range to accommodate the deformation of the tennis ball and avoid the problem that the tennis ball cannot be squeezed into the ball picker 111 due to the distance between the two connecting rods 113 being too small.

[0036] As a further explanation of the leak-proof component in this embodiment, such as Figure 1 As shown, the leak-proof component includes several threading grooves 1141 and an elastic cord 1142. Each threading groove 1141 is respectively disposed on each side of the fork-shaped bracket 114. The elastic cord 1142 passes through each threading groove 1141 to form a closed structure, and each side of the elastic cord 1142 divides each outlet 115 equally. The opening of the outlet 115 is 1.5 times the diameter of a tennis ball.

[0037] The circular disc 112 is also provided with multiple buckles 1143 that correspond to each side of the elastic line 1142.

[0038] By limiting the opening size of the outlet 115 to 1.5 times the diameter of the tennis ball, the elastic lines 1143 set in each threading groove 1141 can effectively block each outlet 115 during the tennis ball retrieval operation, thus preventing the tennis ball from leaking out of the outlet 115.

[0039] At the same time, when taking out the tennis ball from the retrieval outlet 115, people can pull the elastic cord 1142, which is then opened by the buckle 1143, allowing them to take out the tennis ball from the ball rack 111 through the retrieval outlet 115.

[0040] As a further optimization of the annular disk 112 in this embodiment, such as Figure 1 As shown, the surface of the annular disk 112 is also machined with several friction bumps 116.

[0041] The friction protrusions 116 processed by the ball picker 111 can increase the friction between the ball picker 111 and the ground, which can prevent the ball picker 111 from slipping during the ball picking process and make it easier for the tennis ball to be squeezed into the ball picker 111.

[0042] As a further explanation of the mobile trolley 100 in this embodiment, such as Figures 1 to 2 As shown, the mobile vehicle 100 is driven by tracked wheels. The mobile vehicle 100 is also equipped with a battery module and a vision detection module. The battery module is used to provide power to the mobile vehicle 100, and the vision detection module is used to identify tennis balls on the ground.

[0043] The battery module provides power to the mobile cart 100, enabling it to move electrically. By setting a vision detection module, the mobile cart 100 can identify tennis balls scattered on the ground during its movement and collect them.

[0044] Example 2 is an improvement on Example 1, with further modifications to the method of removing the tennis ball, such as... Figure 3 and Figure 4 As shown, the connecting rod 113 includes a hollow sleeve rod 200 and two plug rods 201. The two plug rods 201 are slidably connected to both ends of the hollow sleeve rod 200, and two springs 202 are installed inside the hollow sleeve rod 200. The two springs 202 are elastically fixed to the two plug rods 201 respectively.

[0045] Each of the two annular discs 112 has multiple sockets 203 that match the plug-in rods 201 on one side facing each other.

[0046] In this improved embodiment, when installing the connecting rod 113, the plug-in rods 201 on both sides of the hollow sleeve rod 200 are retracted inward to compress the spring 202. Then, the plug-in rods 201 are aligned with the sockets 203 and released. The plug-in rods 201 on both sides can then be inserted into the sockets 203 under the elastic rebound of the spring 202, thus completing the installation of the connecting rod 113. When removing the connecting rod 113, the plug-in rods 201 on both sides of the hollow sleeve rod 200 are retracted inward to compress the spring 202. The plug-in rods 201 then disengage from the sockets 203, and the connecting rod 113 can be removed.

[0047] The aforementioned technical solution of Embodiment 1 requires people to take out the tennis ball from the retrieval outlet 115, which is inefficient. With the improvement of this embodiment, after the moving trolley 100 returns to the tennis ball collection position, people can remove the connecting rod 113 on the lower side and open the lower side of the ball collection rack 111. At this time, the tennis ball in the ball collection rack 111 can roll out through the lower side of the ball collection rack 111, improving the efficiency of tennis ball retrieval.

[0048] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A tennis training ball-collecting device, comprising a mobile trolley and a ball-collecting mechanism mounted on the front end of the mobile trolley, characterized in that: The ball-collecting mechanism includes a mounting frame and a ball-collecting frame. The mounting frame is fixedly connected to the front end of the mobile trolley and has a U-shaped structure in the longitudinal direction. The ball-collecting rack includes two annular disks and several connecting rods. A fork-shaped bracket is integrally formed at the center of the two annular disks. The fork-shaped bracket divides the inner side of the annular disks into multiple retrieval outlets. The centers of the two annular disks are rotatably connected to the longitudinal sides of the mounting frame, respectively. The two annular disks are connected by each of the connecting rods, and the connecting rods are evenly arranged in an array along the circumference of the annular disks. The outlet opening is larger than the diameter of a tennis ball, the fork-shaped bracket is equipped with a leak-proof component corresponding to the outlet, and the distance between two adjacent connecting rods is smaller than the diameter of a tennis ball.

2. The tennis ball-collecting device for training according to claim 1, characterized in that: The difference between the spacing between two adjacent connecting rods and the diameter of the tennis ball is 1-2 cm.

3. The tennis ball-collecting device for training according to claim 2, characterized in that: The leak-proof component includes several threading grooves and an elastic cord. Each threading groove is respectively disposed on each side of the fork-shaped bracket. The elastic cord passes through each threading groove to form a closed structure, and each side of the elastic cord equally divides each of the outlets. The opening of each outlet is 1.5 times the diameter of a tennis ball.

4. A tennis ball-collecting device for training according to claim 3, characterized in that: The annular disc is also provided with multiple buckles that correspond to each side of the elastic line.

5. A tennis training ball-collecting device according to claim 4, characterized in that: The surface of the annular disk is also machined with several friction bumps.

6. A tennis training ball-collecting device according to claim 5, characterized in that: The mobile vehicle is driven by tracked wheels and is also equipped with a battery module and a vision inspection module.

7. A tennis training ball-collecting device according to claim 6, characterized in that: The connecting rod includes a hollow sleeve rod and two plug rods. The two plug rods are slidably connected to both ends of the hollow sleeve rod, and two springs are installed inside the hollow sleeve rod. The two springs are elastically fixed to the two plug rods respectively. Each of the two annular discs has multiple sockets on its facing side that match the plug-in rod.

Images