A tennis ball serving device for sports training

Abstract

This utility model discloses a tennis ball serving device for sports training, relating to the field of sports training auxiliary equipment technology. The utility model includes a protective part located inside a housing; a launching part mounted on the top of a base plate; an adjusting part located at the bottom of the base plate; the launching part includes a transport component mounted on the inner wall of the top of the housing; and a launching assembly mounted on the bottom of the base plate. The transport component includes a rotating block slidably connected to the inner wall of the top of the housing, with a bevel gear three fixedly connected to the bottom of the rotating block via a transmission rod, the bevel gear three being rotatably connected to a transmission component. This utility model, by incorporating a launching part, solves the problem that when a ball is successfully served, slight wear or dust accumulation on the tennis ball surface can cause ball jamming or leakage, leading to frequent interruptions in the serving rhythm and disrupting the continuity of training.

Description

Technical Field

[0001] This utility model belongs to the technical field of sports training auxiliary equipment, and in particular relates to a tennis ball serving device for sports training. Background Technology

[0002] Tennis is a beautiful and intense sport. The origin and development of tennis can be summarized in four sentences: it was conceived in France, born in England, began to become popular and reached its peak in the United States, and is now popular all over the world, known as the world's second largest ball sport.

[0003] Existing tennis ball serving devices for sports training are prone to problems such as ball jamming and leakage when the tennis ball surface is slightly worn or dusty when it hits the ball in the hoop, causing frequent interruptions to the serving rhythm and disrupting the continuity of training. In terms of mobility, most devices are still too heavy for a single person to carry, and some do not have built-in wheels or have wheels with poor load-bearing capacity, making them easy to get stuck when pushed on the court and difficult to quickly move to different training points. In terms of height adjustment, the process is too cumbersome and inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a tennis ball serving device for sports training. By setting up an adjustment part, it solves the problems of ball jamming and leakage when the tennis ball surface is slightly worn or dusty when it enters the hoop, which leads to frequent interruptions in the serving rhythm and disrupts the continuity of training. In terms of mobility, most devices are still too heavy for a single person to carry, and some do not have built-in wheels or have wheels with poor load-bearing capacity, making them easy to get stuck when pushed on the court and difficult to quickly move to different training points. In terms of height adjustment, the process is too cumbersome and inconvenient.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a tennis serving device for sports training, comprising a shell and a base plate fixedly connected to the bottom, including: a protective part located inside the shell; a launching part installed inside the base plate; an adjusting part located at the bottom of the base plate; the launching part includes a transport component installed on the inner wall of the top of the shell; and a launching component installed on the top of the base plate; the transport component includes a rotating block rotatably connected to the inner wall of the top of the shell, a bevel gear three fixedly connected to the bottom of the rotating block, and a transmission component provided on the bevel gear three; wherein, the rotating block is provided with a ball-scooping port.

[0006] Furthermore, the protective unit includes a ball storage chamber fixedly connected to the top of the outer shell. A cover is slidably connected to the inner wall of the top of the ball storage chamber. A support block is fixedly connected to the inner wall of the top of the outer shell. Several connecting columns are fixedly connected to the inner wall of the top of the outer shell. The several connecting columns are all fixedly connected to the top of the gear fixing plate. A rotating shaft is fixedly connected to the inner wall of the bottom of the base plate. The top of the rotating shaft is fixedly connected to the gear fixing plate. Two limiting chambers are fixedly connected to the top of the base plate. Two support columns are fixedly connected to the top of the base plate. The limiting chambers are hollow inside.

[0007] Furthermore, the launching assembly includes a launching tube connected to the bottom of the ball storage compartment. Rubber wheels are rotatably connected to both sides of the launching tube. Fixed shafts are fixedly connected to the top of each of the two rubber wheels. Transmission gears are fixedly connected to the top of each of the two fixed shafts. A motor is installed inside the housing. The output shaft of the motor is fixedly connected to the rubber wheel on the right side via a coupling. The motor is fixedly connected to the top of the base plate. A rotating block is located above the launching tube. Both rubber wheels pass through the tube wall of the launching tube and are rotatably connected to the inner wall of the launching tube.

[0008] Furthermore, the adjustment unit includes a height component disposed at the bottom of the base plate; and a movement component disposed at the bottom of the base plate.

[0009] Furthermore, the height component includes several fixing blocks 1 fixedly connected to the bottom of the base plate. The bottom of the base plate is provided with two fixing pins. The outer walls of the two fixing pins respectively penetrate through the several fixing blocks 1, and the outer walls of the two fixing pins are slidably connected to the two fixing blocks 1 respectively. The outer walls of the two fixing pins are respectively provided with two adjusting members. There are four fixing blocks 1, which are linearly distributed at the bottom of the base plate.

[0010] Furthermore, the movable component includes several fixed blocks 2 fixedly connected to the bottom of the base plate, and each of the several fixed blocks 2 is slidably connected to two hub fixing pins, with a hub rotatably connected to the outer side of each hub fixing pin; wherein, two fixed blocks 2 are slidably connected to one hub fixing pin as a group.

[0011] Furthermore, the transmission component includes a bevel gear one rotatably connected to the top of the gear fixing plate, two bevel gears two disposed above the gear fixing plate, the bevel gear two located on the front side meshing with the bevel gear one, a transmission shaft disposed above the gear fixing plate, the outer wall of the transmission shaft penetrating the support block, the outer wall of the transmission shaft being rotatably connected to the support block, the front and rear sides of the transmission shaft being fixedly connected to the two bevel gears two respectively, a transmission gear one disposed below the gear fixing plate, a transmission block being fixedly connected to the top of the transmission gear one, and the top of the transmission block being fixedly connected to the bevel gear one; wherein, the bevel gear one meshes with the bevel gear two.

[0012] Furthermore, the adjusting component includes two outer cylinders disposed at the bottom of the base plate. The outer walls of both outer cylinders penetrate the base plate and are fixedly connected to it. Each outer cylinder has a moving groove. An inner cylinder is slidably connected to the inner wall of each outer cylinder. Two limiting rings are fixedly connected to the inner wall of each inner cylinder. A spring is disposed on the inner wall of each inner cylinder. The side of each spring closest to the limiting ring is fixedly connected to the inner wall of the limiting ring. Both outer cylinders are penetrated by a pressing block. The side of each pressing block away from the outer cylinder is fixedly connected to the spring. The two pressing blocks are slidably connected to fixing holes inside the two outer cylinders. Several fixing holes are provided inside each outer cylinder in a linear distribution.

[0013] This utility model has the following beneficial effects: 1. A breakthrough was achieved by setting up a launching unit and optimizing the launching structure; the transport component adopts a rotating block with a ball inlet and a bevel gear three-drive system to replace the traditional gravity or belt ball supply. Through the mutual cooperation of the gears, the rotating block can be stably driven to transport the tennis ball, reducing problems such as ball jamming and ball leakage caused by the ball supply structure jamming.

[0014] 2. By incorporating a movable part, the problems of inconvenient movement and height adjustment are solved. The optimized structural design stably mounts the hub at the bottom of the device, enabling rapid transfer of the device through hub rotation, thus solving the problems of laborious single-person handling and jamming during pushing. The inner cylinder extension length can be adjusted by pressing, simplifying the operation process, expanding the height adjustment range, and adapting to the needs of trainees of different heights, solving the problems of cumbersome height adjustment and poor adaptability. Of course, any product implementing this utility model does not necessarily need to simultaneously achieve all the advantages described above. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the ball storage compartment of this utility model; Figure 3 This is a schematic diagram of the protective part structure of this utility model; Figure 4 This is a schematic diagram of the launching component structure of this utility model; Figure 5 For the present utility model Figure 4 A magnified view of part A in the image; Figure 6 This is a schematic diagram of the structure of the mobile component of this utility model; Figure 7 For the present utility model Figure 5 A magnified view of part B in the image; Figure 8 This is a partial structural diagram of the mobile component of this utility model.

[0017] The attached diagram lists the components represented by each number as follows: 1. Protective Unit; 101. Outer Shell; 102. Ball Storage Compartment; 103. Base Plate; 104. Gear Fixing Plate; 105. Connecting Column; 106. Support Column; 107. Rotating Shaft; 108. Limiting Compartment; 109. Support Block; 1011. Hatch Cover; 2. Launching Unit; 21. Transport Components; 211. Transmission Gear One; 212. Transmission Block; 213. Bevel Gear One; 214. Bevel Gear Two; 215. Transmission Shaft; 216. Rotating Block; 217. Bevel Gear Three; 22. 221. Launching assembly; 222. Launching tube; 223. Motor; 224. Rubber wheel; 225. Fixed shaft; 226. Transmission gear II; 3. Adjustment part; 31. Height assembly; 311. Fixed block I; 312. Fixed pin; 313. Outer cylinder; 314. Inner cylinder; 315. Limiting ring; 316. Spring; 317. Press block; 318. Moving groove; 319. Fixed hole; 32. Moving assembly; 321. Fixed block II; 322. Hub; 323. Hub fixing pin. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5As shown, this utility model is a tennis serving device for sports training, including a shell 101 and a base plate 103 fixedly connected to the bottom. It includes: a protective part 1 located inside the shell 101; the protective part 1 includes a ball storage chamber 102 fixedly connected to the top of the shell 101, a cover 1011 slidably connected to the inner wall of the top of the ball storage chamber 102, a support block 109 fixedly connected to the inner wall of the top of the shell 101, several connecting posts 105 fixedly connected to the inner wall of the top of the shell 101, all of which are fixedly connected to the top of a gear fixing plate 104; a rotating shaft 107 fixedly connected to the inner wall of the bottom of the base plate 103, the top of the rotating shaft 107 fixedly connected to the gear fixing plate 104; two limiting chambers 108 fixedly connected to the top of the base plate 103; and two support posts 106 fixedly connected to the top of the base plate 103; wherein the limiting chambers 108 are hollow inside.

[0020] Launching unit 2 is installed inside the base plate 103; launching unit 2 includes a transport assembly 21 installed on the top inner wall of the outer casing 101; and launching assembly 22 installed on the top of the base plate 103; the transport assembly 21 includes a rotating block 216 rotatably connected to the top inner wall of the outer casing 101, a bevel gear 217 fixedly connected to the bottom of the rotating block 216, and a transmission component provided on the bevel gear 217; wherein, the rotating block 216 is provided with a ball inlet; launching assembly 22 includes a launching device connected to the bottom of the ball storage chamber 102. The tube 221 has rubber wheels 223 rotatably connected to both sides of the launching tube 221. A fixed shaft 224 is fixedly connected to the top of each rubber wheel 223, and a transmission gear 225 is fixedly connected to the top of each fixed shaft 224. A motor 222 is installed inside the outer casing 101. The output shaft of the motor 222 is fixedly connected to the rubber wheel 223 on the right side via a coupling. The motor 222 is fixedly connected to the top of the base plate 103. A rotating block 216 is positioned above the launching tube 221. Both rubber wheels 223 pass through the tube wall of the launching tube 221. All rubber wheels 223 are rotatably connected to the inner wall of the launching tube 221; the transmission component includes a bevel gear 213 rotatably connected to the top of the gear fixing plate 104, two bevel gears 214 are arranged above the gear fixing plate 104, the bevel gear 214 located on the front side meshes with the bevel gear 213, a transmission shaft 215 is arranged above the gear fixing plate 104, the outer wall of the transmission shaft 215 penetrates the support block 109, the outer wall of the transmission shaft 215 is rotatably connected to the support block 109, and the front and rear sides of the transmission shaft 215 are respectively fixedly connected to the two bevel gears 214. A transmission gear 211 is provided below the wheel fixing plate 104. A transmission block 212 is fixedly connected to the top of the transmission gear 211. The top of the transmission block 212 is fixedly connected to a bevel gear 213. The bevel gear 213 meshes with the bevel gear 214. A breakthrough is achieved by setting up a launching part and optimizing the launching structure. The transport component adopts a rotating block with a ball inlet and a bevel gear 3 for transmission, replacing the traditional gravity or belt ball supply. Through the mutual cooperation of the gears, the rotating block can be stably driven to transport the tennis ball, reducing problems such as ball jamming and ball leakage caused by the ball supply structure jamming.

[0021] Adjustment part 3 is disposed at the bottom of base plate 103; adjustment part 3 includes height component 31 disposed at the bottom of base plate 103; and moving component 32 disposed at the bottom of base plate 103. Height component 31 includes several fixing blocks 311 fixedly connected to the bottom of base plate 103. Two fixing pins 312 are disposed at the bottom of base plate 103. The outer walls of the two fixing pins 312 respectively penetrate through the several fixing blocks 311, and the outer walls of the two fixing pins 312 are slidably connected to the two fixing blocks 311 respectively. The base plate 103 is provided with two adjusting components. Four fixing blocks 311 are arranged linearly at the bottom of the base plate 103. The moving component 32 includes several fixing blocks 321 fixedly connected to the bottom of the base plate 103. Each fixing block 321 is slidably connected to two hub fixing pins 323, and a hub 322 is rotatably connected to the outer side of each hub fixing pin 323. Two fixing blocks 321 are slidably connected to one hub fixing pin 323. The adjusting component includes two outer cylinders 313 located at the bottom of the base plate 103, with the outer walls of both outer cylinders 313 penetrating the base plate 103. The outer walls of both outer cylinders 313 are fixedly connected to the base plate 103. Each outer cylinder 313 has a movable groove 318. An inner cylinder 314 is slidably connected to the inner wall of each outer cylinder 313. Two limiting rings 315 are fixedly connected to the inner wall of each inner cylinder 314. Springs 316 are provided on the inner wall of each inner cylinder 314. The side of each spring 316 closest to the limiting rings 315 is fixedly connected to the inner wall of each limiting ring 315. Both outer cylinders 313 are penetrated by a pressing block 317. The side of each pressing block 317 furthest from the outer cylinder 313 is fixedly connected to the spring 316. Two push blocks 317 are slidably connected to the fixing holes 319 inside the two outer cylinders 313 respectively; each of the two outer cylinders 313 has several fixing holes 319 arranged linearly; by setting up a moving part, the problem of inconvenient movement and height adjustment is solved. The optimized structural design stably installs the hub at the bottom of the device, and the device can be quickly transferred by rolling the hub, solving the problems of laborious single-person carrying and jamming when pushing; pressing can adjust the extension length of the inner cylinder, simplifying the operation process, expanding the height adjustment range, adapting to the needs of trainees of different heights, and solving the problems of cumbersome height adjustment and poor adaptability.

[0022] A specific application of this embodiment is as follows: When in use, the ball storage chamber 102 is opened, and a tennis ball is placed inside. Then, the height component 31 is adjusted to adjust the launch height. Next, the motor 222 is started. The motor 222 drives a first bevel gear 213 to rotate via gears. The first bevel gear 213 meshes with a second bevel gear 214, which in turn drives a third bevel gear 217 to rotate, causing the rotating block 216 to begin moving. A baffle is provided above the rotating block 216. When the rotating block 216 rotates, it causes the tennis ball between the baffles to move. The movement of the tennis ball between the baffles then moves the tennis ball inside the ball storage chamber 102. The movement reduces the occurrence of tennis balls getting stuck. At the same time, the rotating block 216 has a ball inlet. When the tennis ball enters the ball inlet, it falls into the launching tube 221. Gravity causes the tennis ball to roll between the two rubber wheels 223. When the operator starts the motor 222 to rotate counterclockwise, the left rubber wheel 223 rotates clockwise through the meshing of two transmission gears 225. When the tennis ball rolls through the launching tube 221 between the two rubber wheels 223, the tennis ball is subjected to a forward squeezing force due to the different rotation directions of the two rubber wheels 223, causing the tennis ball to be launched.

[0023] When the height needs to be adjusted, first put the outer cylinder 313 into the limiting chamber 108. Since the limiting chamber 108 and the outer cylinder 313 are rectangular, they have a certain fixing effect. After fixing, you can press the push block 317 to make the spring 316 move backward under the pressure, so that the push block 317 is completely inserted into the outer cylinder 313. At this time, moving the inner cylinder 314 upward will lower the firing height, and pulling the inner cylinder 314 downward will raise the firing height. When the push block 317 moves up and down with the inner cylinder 314 to another fixing hole 319, it will pop up due to the elastic force of the spring 316, thereby achieving the locking effect.

[0024] When it is necessary to move and change the launch direction, first lift the front side of the device. The rear side is equipped with two hubs 322 to reduce the force required. After lifting, the outer cylinder 313 slides downward under gravity. When the top of the inner side of the moving groove 318 of the outer cylinder 313 contacts the fixing pin 312, pull up the connecting rod between the two outer cylinders 313 so that the outer side of the outer cylinder 313 is attached to the bottom of the base plate 103. Since the fixing pin 312 is fixed on the fixing block 311 and the fixing pin 312 is in contact with the top of the moving groove 318, and the outer side of the outer cylinder 313 is attached to the base plate 103, the fixing pin 312 and the base plate 103 restrict the outer cylinder 313. When the connecting rod between the outer cylinders 313 is pulled, the device can move freely due to the rear rotating wheel.

[0025] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tennis ball serving device for sports training, comprising a housing (101) and a bottom plate (103) fixedly connected to the bottom, characterized in that, Also includes: The protective part (1) is located inside the outer casing (101); The launching unit (2) is installed inside the base plate (103); Adjustment part (3), the adjustment part (3) is disposed at the bottom of the base plate (103); The launching unit (2) includes a transport assembly (21), which is mounted on the top inner wall of the housing (101); as well as The launching assembly (22) is mounted on top of the base plate (103); The transport assembly (21) includes a rotating block (216) rotatably connected to the inner wall of the top of the housing (101), and a bevel gear (217) is fixedly connected to the bottom of the rotating block (216), and a transmission component is provided on the bevel gear (217); The rotating block (216) is equipped with a ball-in-the-hole.

2. The tennis ball serving device for sports training according to claim 1, characterized in that, The protective part (1) includes a ball storage chamber (102) fixedly connected to the top of the outer shell (101). A cover (1011) is slidably connected to the inner wall of the top of the ball storage chamber (102). A support block (109) is fixedly connected to the inner wall of the top of the outer shell (101). Several connecting columns (105) are fixedly connected to the inner wall of the top of the outer shell (101). Several connecting columns (105) are fixedly connected to the top of the gear fixing plate (104). A rotating shaft (107) is fixedly connected to the inner wall of the bottom of the base plate (103). The top of the rotating shaft (107) is fixedly connected to the gear fixing plate (104). Two limiting chambers (108) are fixedly connected to the top of the base plate (103). Two support columns (106) are fixedly connected to the top of the base plate (103). The interior of the limiting compartment (108) is hollow.

3. A tennis ball serving device for sports training according to claim 2, characterized in that, The launching assembly (22) includes a launching tube (221) connected to the bottom of the ball storage chamber (102). Rubber wheels (223) are rotatably connected to both sides of the launching tube (221). Fixed shafts (224) are fixedly connected to the top of the two rubber wheels (223). Transmission gears (225) are fixedly connected to the top of the two fixed shafts (224). A motor (222) is installed inside the outer shell (101). The output shaft of the motor (222) is fixedly connected to the rubber wheel (223) on the right side through a coupling. The motor (222) is fixedly connected to the top of the base plate (103). The rotating block (216) is positioned above the launching tube (221), and the two rubber wheels (223) pass through the tube wall of the launching tube (221). The two rubber wheels (223) are rotatably connected to the inner wall of the launching tube (221).

4. A tennis ball serving device for sports training according to claim 3, characterized in that, The adjustment unit (3) includes a height component (31) disposed at the bottom of the base plate (103); and A movable component (32) is disposed at the bottom of the base plate (103).

5. A tennis ball serving device for sports training according to claim 4, characterized in that, The height component (31) includes several fixing blocks (311) fixedly connected to the bottom of the base plate (103). The bottom of the base plate (103) is provided with two fixing pins (312). The outer walls of the two fixing pins (312) pass through the several fixing blocks (311) respectively, and the outer walls of the two fixing pins (312) are slidably connected to the two fixing blocks (311) respectively. The outer walls of the two fixing pins (312) are provided with two adjusting members respectively. Among them, four fixing blocks (311) are provided, which are distributed in a linear shape at the bottom of the base plate (103).

6. A tennis ball serving device for sports training according to claim 5, characterized in that, The moving component (32) includes a plurality of fixed blocks (321) fixedly connected to the bottom of the base plate (103). The plurality of fixed blocks (321) are slidably connected to two hub fixing pins (323), and a hub (322) is rotatably connected to the outside of the hub fixing pins (323). Among them, the two fixed blocks (321) are slidably connected to a hub fixing pin (323).

7. A tennis ball serving device for sports training according to claim 6, characterized in that, The transmission component includes a bevel gear 1 (213) rotatably connected to the top of the gear fixing plate (104), two bevel gears 2 (214) are arranged above the gear fixing plate (104), the bevel gear 2 (214) located on the front side meshes with the bevel gear 1 (213), a transmission shaft (215) is arranged above the gear fixing plate (104), the outer wall of the transmission shaft (215) passes through the support block (109), the outer wall of the transmission shaft (215) is rotatably connected to the support block (109), the front and rear sides of the transmission shaft (215) are fixedly connected to the two bevel gears 2 (214) respectively, a transmission gear 1 (211) is arranged below the gear fixing plate (104), a transmission block (212) is fixedly connected to the top of the transmission gear 1 (211), and the top of the transmission block (212) is fixedly connected to the bevel gear 1 (213); Among them, bevel gear one (213) meshes with bevel gear two (214).

8. A tennis ball serving device for sports training according to claim 7, characterized in that, The adjusting component includes two outer cylinders (313) disposed at the bottom of the base plate (103). The outer walls of both outer cylinders (313) penetrate the base plate (103) and are fixedly connected to the base plate (103). Each outer cylinder (313) has a moving groove (318). An inner cylinder (314) is slidably connected to the inner wall of each outer cylinder (313). Two limiting rings (315) are fixedly connected to the inner wall of each inner cylinder (314). The inner wall of the inner cylinder (314) is provided with springs (316). The side of the two springs (316) near the limiting ring (315) is fixedly connected to the inner wall of the two limiting rings (315). The two outer cylinders (313) are penetrated by push blocks (317). The side of the two push blocks (317) away from the outer cylinder (313) is fixedly connected to the springs (316). The two push blocks (317) are slidably connected to the fixing holes (319) inside the two outer cylinders (313). The two outer cylinders (313) each have several fixing holes (319) inside, which are linearly distributed.

Images