Novel tennis ball picking device

Abstract

The invention discloses a novel tennis ball picking device which comprises a base plate and a frame, the base plate is used for bearing and connecting the frame, walking wheels are arranged below the base plate, a ball inlet device is arranged on the frame and comprises a ball inlet roller and a ball inlet plate, the ball inlet roller is provided with an elastic surface, and the elastic surface is provided with a ball outlet. The ball inlet plate is arranged on the front portion of the frame and close to the ground, the ball inlet roller is arranged above the ball inlet plate, and a ball inlet channel is formed between the ball inlet plate and the ball inlet roller. The tennis ball picking device can pick up a plurality of tennis balls at the same time, and the ball picking efficiency is greatly improved; and due to the simple structure, the tennis ball can be manufactured by oneself, and convenience is provided for smooth development of campus tennis balls.

Description

Technical Field

[0001] The invention relates to campus tennis training equipment, and more particularly to a campus tennis ball picking device. Background Art

[0002] Tennis is an elegant and interesting sport. It can not only exercise the body and improve physical fitness, but also cultivate people's willpower and team spirit. In recent years, with the improvement of people's living standards and the enhancement of health awareness, more and more students have begun to pay attention to and contact the sport of tennis. Under the strong advocacy of the country, schools at all levels have also set up corresponding tennis courses to train and train students. However, during tennis serving or feeding training, a large number of tennis balls will be scattered on the ground. These tennis balls often need to be picked up by people, which takes a long time and a certain amount of personnel. Schools with conditions will purchase some auxiliary ball picking equipment, which relatively improves efficiency, but still requires manual operation.

[0003] The Chinese invention patent application with patent application number CN202410614100 discloses a tennis ball picking robot, whose technical solution includes a chassis assembly, a goal control element group and a ball collecting mechanism. A goal control element group is arranged above the front end of the chassis assembly, and a ball collecting mechanism is arranged above the rear side of the chassis assembly. The chassis assembly includes a walking assembly, and the walking assembly drives the tennis robot to move through the chassis assembly. The tennis ball picking robot improves the efficiency of picking up balls, avoids the physical strength of players consumed by picking up balls manually, and maximizes the concentration of players in training and improves the training effect. Although this prior art solves the problem of manual ball picking, it is a channel formed between the two goal impellers of the goal control element group. Tennis balls can only pass through one by one, and the efficiency is still relatively low. Summary of the invention

[0004] In view of the shortcomings of the prior art, the main purpose of the present invention is to provide a novel tennis ball picking device to solve the problem of low efficiency in picking up tennis balls for training.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: a novel tennis ball picking device, including a chassis and a frame, the chassis is used to carry and connect the frame, walking wheels are provided under the chassis, and a goal device is provided on the frame, the goal device includes a goal roller and a goal plate, the goal roller has an elastic surface, the goal plate is arranged at the front of the frame and adjacent to the ground, the goal roller is arranged above the goal plate, and a goal channel is formed between the goal plate and the goal roller.

[0006] Preferably, the interior of the ball-scoring drum is hollow, and the elastic surface is formed by interweaving rubber bands.

[0007] Preferably, the distance between the goal plate and the surface of the goal roller is greater than 80% and less than 90% of the diameter of the tennis ball.

[0008] Preferably, a first platform and a second platform are provided on the frame, a first ball storage container is provided on the first platform, a second ball storage container is provided on the second platform, the second platform is arranged above the first platform, the first ball storage container is connected to the goal channel, and a dribbling device is provided between the first platform and the second platform.

[0009] Preferably, the goal plate is an inverted V-shaped plate, which includes a rear plate inclined backward and a front plate inclined forward, the first ball storage container is composed of the rear plate and side plates located on both sides of the rear plate, and the goal channel is the space between the front plate and the goal roller.

[0010] Preferably, the second ball storage container is a V-shaped container, and a conveying crawler is provided at the bottom of the V-shaped container.

[0011] Preferably, the dribbling device is arranged at the rear part of the frame, and the dribbling device is connected to the first ball storage container and the second ball storage container respectively. The dribbling device includes two or more vertically arranged dribbling rollers, and the dribbling rollers have an elastic surface. A rear baffle is provided behind the dribbling rollers, and an upper baffle is provided above the dribbling rollers. A transport channel is formed between the dribbling rollers and the rear baffle and the upper baffle, and the transport channel is connected to the first ball storage container and the second ball storage container respectively.

[0012] Preferably, a ball serving device is provided on the second platform, and the ball serving device includes two brushless motors, gears are provided on the output shafts of the two brushless motors, a tennis ball launching port is formed between the two gears, and the tennis ball launching port is connected to the second ball storage container.

[0013] Preferably, the ball dribbling roller includes a first ball dribbling roller, a second ball dribbling roller and a third ball dribbling roller, the second ball dribbling roller and the third ball dribbling roller are sequentially arranged above the first ball dribbling roller, the first ball dribbling roller is an active roller driven by a motor, and the second ball dribbling roller and the third ball dribbling roller are driven rollers.

[0014] Preferably, the second ball storage container is made of a transparent acrylic plate.

[0015] Compared with the prior art, the new tennis ball picking device of the present invention adopts a unique tennis ball structure for picking up tennis balls, wherein the ball roller has an elastic surface, which will produce a concave part under the pressure of the tennis ball, and under the action of friction and inertia, the tennis ball is driven to roll backward into the device. In addition, since the ball roller has a certain width, it can pick up multiple tennis balls at the same time, greatly improving the ball picking efficiency; and because of the simple structure, it can be made by yourself, which provides convenience for the smooth development of campus tennis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The structure of the present invention and its beneficial technical effects are described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0018] Figure 2 It is a side view of the present invention.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the present invention from another angle.

[0020] Figure 4 It is a schematic diagram of the main motor distribution of the present invention. DETAILED DESCRIPTION

[0021] In order to make the invention purpose, technical solution and its beneficial technical effects clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining the present invention, not for limiting the present invention.

[0022] See also Figure 1-Figure 4 The novel tennis ball picking device of the present invention comprises a chassis 1 and a frame 2. The chassis 1 is used for carrying and connecting the frame 2. A running wheel 3 is provided below the chassis 1. The running wheel is a Mecanum wheel driven by a motor. A goal device 4 is provided on the frame 2. The goal device 4 comprises a goal roller 5 and a goal plate 6. The goal roller 5 has an elastic surface. The goal plate 6 is arranged at an angle downward at the front of the frame 2 and adjacent to the ground. The goal roller 5 is arranged above the goal plate 6. A goal channel 7 is formed between the goal plate 6 and the goal roller 5. A first platform and a second platform are provided on the frame. A first ball storage container 8 is provided on the first platform. A second ball storage container 9 is provided on the second platform. The second platform is provided above the first platform. The first ball storage container 8 is connected to the goal channel 7. A dribbling device 10 is provided between the first platform and the second platform. A serving device 11 is provided on the second platform. The serving device 11 comprises two brushless motors 12. Gears 13 are provided on the output shafts of the two brushless motors 12. A tennis ball launching port is formed between the two gears 13. The tennis ball launching port is connected to the second ball storage container 9.

[0023] The dribbling device 10 is arranged at the rear of the frame 2, and is connected to the first ball storage container 8 and the second ball storage container 9 respectively. The dribbling device 10 includes more than two vertically arranged dribbling rollers, and the dribbling rollers have elastic surfaces. A rear baffle 14 is arranged at the rear of the dribbling rollers, and an upper baffle 15 is arranged above the dribbling rollers. A transport channel 16 is formed between the dribbling rollers and the rear baffle 14 and the upper baffle 15, and the transport channel 16 is connected to the first ball storage container 8 and the second ball storage container 9 respectively. The dribbling rollers of this embodiment include a first dribbling roller 17, a second dribbling roller 18 and a third dribbling roller 19, and the second dribbling roller 18 and the third dribbling roller 19 are arranged successively above the first dribbling roller 17, and the first dribbling roller 17, the second dribbling roller 18 and the third dribbling roller 19 are all active rollers driven by a motor; in other embodiments, the first dribbling roller is an active roller driven by a motor, and the second dribbling roller 18 and the third dribbling roller 19 are driven rollers.

[0024] In this embodiment, the goal plate 6 is an inverted V-shaped plate, which includes a rear plate 20 tilted backward and a front plate 21 tilted forward. The first ball storage container 8 is composed of the rear plate 20 and side plates 22 located on both sides of the rear plate. The goal channel 7 is the space between the front plate 21 and the goal roller 5. The second ball storage container 9 is a V-shaped container, and a conveying crawler 23 is provided at the bottom of the V-shaped container; in other embodiments, the V-shaped container can also be tilted to convey tennis balls by gravity; the second ball storage container 9 is made of a transparent acrylic plate. The frame structure of this embodiment and the use of a transparent acrylic plate make the internal working conditions visible.

[0025] The structure of the goal roller 5 of this embodiment is that the interior is hollow and the elastic surface is made of interwoven rubber bands; in other embodiments, the goal roller 5 can also be elastic as a whole, such as being a sponge body whose surface is elastic, or being a silicone body whose surface is also elastic. The ball dribbling rollers 17, 18, and 19 of this embodiment can have the same structure as the goal roller 5, that is, being hollow inside and the elastic surface is made of interwoven rubber bands.

[0026] In order to increase the friction between the tennis ball and the goal-scoring device for quicker goal scoring, the distance between the goal-scoring plate 6 and the surface of the goal-scoring roller 5 may be greater than 80% of the diameter of the tennis ball and less than 90% of the diameter of the tennis ball. If the tennis ball to be picked up is of a special size, the distance may be adjusted accordingly according to the specific size of the tennis ball to be picked up.

[0027] When the new tennis ball picking device of this embodiment is working, the encoder motors M1, M2, M4, and M5 drive the four Mecanum wheels to move on the court, and the large roller motor M6 drives the goal roller 5 to pick up the scattered tennis balls. Specifically, it includes:

[0028] In the rotating state, the goal roller 5 contacts the tennis ball, and the rubber band surface thereof generates a concave portion under the pressure of the tennis ball, and the concave portion is used to grab and drive the tennis ball to roll backward into the goal channel 7, and the tennis ball passes over the front plate 21 tilted forward under the action of inertia and enters the first ball storage container 8; under the action of gravity, the tennis ball rolls along the rear plate 20 tilted backward to the first ball dribbling roller 17, and similarly, the first ball dribbling roller 17 contacts the tennis ball in the rolling state, and the rubber band surface thereof generates a concave portion under the pressure of the tennis ball, and the concave portion is used to grab and drive the tennis ball to roll backward and upward into the transportation channel 16, and the tennis ball is moved to the second ball storage container 9 of the second platform by friction and extrusion in the transportation channel 16 formed between the first ball dribbling roller 17, the second ball dribbling roller 18, the third ball dribbling roller 19, the rear baffle 14, and the upper baffle 15 for storage. The three ball dribbling rollers are driven to rotate by three small roller motors DC1, DC3, and DC4 respectively.

[0029] After the picking is completed, if the device of the present invention is used to train the ball catching technique, the motor DC6 drives the conveyor belt 23 to transmit the tennis ball 24 to the tennis ball launching port, and the launching ball adjustment steering gears M3-2 and M3-4 adjust the direction of the tennis ball launching port, and the high-speed rotating gear 13 is used to launch the tennis ball. The principle of the serving is to "squeeze out" the ball through friction, and the friction force is provided by the gear with a very large friction coefficient, and the balls are controlled to be sent out one by one through the above-mentioned track. A launching ball adjustment steering gear is installed below the brushless motor 12, and the serving direction adjustment is achieved by rotating the steering gear.

[0030] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. A novel tennis ball picking device, comprising a chassis and a frame, wherein the chassis is used to carry and connect the frame, a running wheel is provided under the chassis, and a goal-scoring device is provided on the frame, characterized in that: The goal device includes a goal roller and a goal plate, wherein the goal roller has an elastic surface, the goal plate is arranged at the front of the frame and adjacent to the ground, the goal roller is arranged above the goal plate, and a goal channel is formed between the goal plate and the goal roller.

2. The novel tennis ball picking device according to claim 1 is characterized in that: The interior of the ball-scoring drum is hollow, and the elastic surface is formed by interweaving rubber bands.

3. The novel tennis ball picking device according to claim 1 is characterized in that: The distance between the goal plate and the surface of the goal roller is greater than 80% of the diameter of the tennis ball and less than 90% of the diameter of the tennis ball.

4. The novel tennis ball picking device according to claim 1 is characterized in that: A first platform and a second platform are provided on the frame, a first ball storage container is provided on the first platform, a second ball storage container is provided on the second platform, the second platform is arranged above the first platform, the first ball storage container is communicated with the goal channel, and a dribbling device is provided between the first platform and the second platform.

5. The novel tennis ball picking device according to claim 4 is characterized in that: The goal plate is an inverted V-shaped plate, which includes a rear plate tilted backward and a front plate tilted forward. The first ball storage container is composed of the rear plate and side plates located on both sides of the rear plate. The goal channel is the space between the front plate and the goal roller.

6. The novel tennis ball picking device according to claim 4 is characterized in that: The second ball storage container is a V-shaped container, and a conveying crawler is provided at the bottom of the V-shaped container.

7. The novel tennis ball picking device according to claim 4 is characterized in that: The dribbling device is arranged at the rear part of the frame, and is connected to the first ball storage container and the second ball storage container respectively. The dribbling device includes two or more vertically arranged dribbling rollers, and the dribbling rollers have an elastic surface. A rear baffle is provided at the rear of the dribbling rollers, and an upper baffle is provided above the dribbling rollers. A transport channel is formed between the dribbling rollers and the rear baffle and the upper baffle, and the transport channel is connected to the first ball storage container and the second ball storage container respectively.

8. The novel tennis ball picking device according to claim 3 is characterized in that: A ball serving device is provided on the second platform, and the ball serving device includes two brushless motors. Gears are provided on the output shafts of the two brushless motors, and a tennis ball launching port is formed between the two gears. The tennis ball launching port is connected to the second ball storage container.

9. The novel tennis ball picking device according to claim 7, characterized in that: The ball dribbling roller comprises a first ball dribbling roller, a second ball dribbling roller and a third ball dribbling roller, wherein the second ball dribbling roller and the third ball dribbling roller are sequentially arranged above the first ball dribbling roller, the first ball dribbling roller is an active roller driven by a motor, and the second ball dribbling roller and the third ball dribbling roller are driven rollers.

10. The novel tennis ball picking device according to claim 4, characterized in that: The second ball storage container is made of a transparent acrylic plate.

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