Tennis ball launching device

Abstract

The tennis ball launching device comprises a vehicle body, a transportation assembly and a launching assembly, the vehicle body is provided with a temporary storage bin, the temporary storage bin is used for storing tennis balls, the transportation assembly is arranged on the vehicle body, one end of the transportation assembly is communicated with the temporary storage bin, and therefore the tennis balls in the temporary storage bin can be transported through the transportation assembly; the launching assembly comprises a launching tube, a first launching part and a second launching part, the launching tube is arranged on the transportation assembly and communicates with the transportation assembly, and the launching tube can rotate around the width direction of the vehicle body relative to the vehicle body so as to adjust the launching angle of the launching tube; the first launching part and the second launching part are both arranged on the launching tube, at least parts of the first launching part and the second launching part are located in the launching tube, the first launching part is used for positioning a tennis ball, the second launching part is located on the side, away from the conveying assembly, of the first launching part, and the second launching part is used for accelerating the tennis ball. The tennis ball launching device has the advantages of being simple in structure, high in hit rate and the like.

Description

Technical Field

[0001] This utility model relates to the field of transmitter technology, specifically to a tennis ball launching device. Background Technology

[0002] Tennis launchers play a crucial role in tennis training, simulating real-game serving scenarios to help players adapt to the pace of the game, the opponent's serving characteristics, and various different serving situations.

[0003] In related technologies, tennis ball launchers suffer from excessive ballistic dispersion and low accuracy. Utility Model Content

[0004] This utility model is based on the inventor's discovery and understanding of the following facts and problems:

[0005] In related technologies, after the tennis ball passes through the friction wheel, it collides with the gun barrel. During this process, the launched tennis ball exhibits instability and abnormal deceleration, with its speed fluctuations exceeding the normal range. This instability directly leads to a significant decrease in the hit rate of the tennis ball launcher and a marked increase in ballistic dispersion. For example, patent number 202310927712.7 describes a tennis ball launcher that uses two friction wheels to launch the tennis ball. However, the two friction wheels are insufficient in providing stability and balance, causing the launch trajectory of the tennis ball to deviate from the expected trajectory during high-speed or continuous launches, thus increasing ballistic dispersion.

[0006] This utility model aims to at least partially solve one of the technical problems in the related art.

[0007] Therefore, embodiments of this utility model propose a tennis launching device with small ballistic dispersion, high hit rate, and smooth launching.

[0008] The tennis ball launching device according to an embodiment of the present invention includes: a vehicle body having a temporary storage compartment for storing tennis balls; a transport assembly disposed on the vehicle body and one end of the transport assembly communicating with the temporary storage compartment so that tennis balls in the temporary storage compartment are transported via the transport assembly; and a launching assembly including a launching tube, a first launching element, and a second launching element. The launching tube is disposed on and communicates with the transport assembly so that tennis balls within the transport assembly are transported to the launching tube. The launching tube is rotatable relative to the vehicle body about the width of the vehicle body to adjust the launching angle of the launching tube. The first launching element and the second launching element are both disposed on the launching tube and at least a portion of the first launching element and the second launching element are located within the launching tube. The first launching element is used to position the tennis ball, and the second launching element is located on the side of the first launching element away from the transport assembly. The second launching element is used to accelerate the tennis ball.

[0009] The tennis ball launching device of this utility model embodiment includes a vehicle body, a transport component, and a launching component, which ensures that the tennis ball is in the correct launching position, reduces ballistic deviation, improves the hit rate of the tennis ball launching device, guarantees the launching speed of the tennis ball, and improves the launching efficiency of the tennis ball launching device.

[0010] In some embodiments, the first launching member includes a first driving wheel, a second driving wheel, and a third driving wheel. The first driving wheel, the second driving wheel, and the third driving wheel are equally spaced along the circumference of the launching tube and are all rotatable relative to the launching tube. The first driving wheel, the second driving wheel, and the third driving wheel define a positioning cavity so that the tennis ball is positioned within the positioning cavity.

[0011] In some embodiments, the second launching member includes a fourth driving wheel, a fifth driving wheel, and a sixth driving wheel. The fourth driving wheel, the fifth driving wheel, and the sixth driving wheel are equally spaced along the circumference of the launching tube and are all rotatable relative to the launching tube. The fourth driving wheel, the fifth driving wheel, and the sixth driving wheel define an acceleration cavity so that when the tennis ball passes through the acceleration cavity, the fourth driving wheel, the fifth driving wheel, and the sixth driving wheel accelerate the tennis ball.

[0012] In some embodiments, the angular velocities of the first drive wheel, the second drive wheel, and the third drive wheel are equal, the angular velocities of the fourth drive wheel, the fifth drive wheel, and the sixth drive wheel are equal, and the ratio of the angular velocity of the first drive wheel to the angular velocity of the fourth drive wheel is 1:2.

[0013] In some embodiments, the tennis ball launching device further includes a dial, which is disposed within the storage chamber and rotatable relative to the storage chamber in a vertical direction. The outer peripheral surface of the dial and the inner peripheral surface of the storage chamber are spaced apart in an inward-outward direction. The dial has a plurality of through holes extending through it in a vertical direction. The plurality of through holes are spaced apart circumferentially on the dial. The tennis ball can be disposed within the through holes so that the dial can rotate the tennis ball to propel it into the transport assembly.

[0014] In some embodiments, the tennis ball launching device further includes a mounting frame mounted on the vehicle body and rotatable relative to the vehicle body in a vertical direction. The launching assembly is mounted on the mounting frame and rotatable relative to the mounting frame in a width direction of the vehicle body. The transport assembly includes a first transport pipe and a second transport pipe. The first transport pipe is mounted on the vehicle body and one end of the first transport pipe is connected to the temporary storage compartment. The other end of the first transport pipe is connected to one end of the second transport pipe. The second transport pipe is mounted on the mounting frame and is connected to the launching assembly.

[0015] In some embodiments, the transport assembly further includes a plurality of first rotating rollers, which are sequentially disposed on the first transport pipe along the extension direction of the first transport pipe, and / or a plurality of second rotating rollers, which are sequentially disposed on the second transport pipe along the extension direction of the second transport pipe.

[0016] In some embodiments, the second transport tube is located on one side of the mounting bracket, and the axis of the upper end of the second transport tube coincides with the rotation axis of the launch tube.

[0017] In some embodiments, the tennis ball launching device further includes a pushing component disposed within the launching tube and movable relative to the launching tube along the axis of the launching tube, such that the pushing component pushes the tennis ball toward the first launching member.

[0018] In some embodiments, the tennis launching device further includes a camera component, a control component, and a signal transmission component. The camera component and the signal transmission component are both mounted on the launching component. The camera component is used to capture the competition environment. The camera component is connected to the signal transmission component so that the data captured by the camera component can be transmitted through the signal transmission component. The control component is mounted on the vehicle body and connected to the vehicle body and the launching component so as to control the vehicle body and the launching component. Attached Figure Description

[0019] Figure 1This is a front view of the tennis launching device according to an embodiment of the present invention.

[0020] Figure 2 This is a side view of the tennis launching device according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the vehicle body of the tennis launching device according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the temporary storage compartment of the tennis launching device according to an embodiment of the present invention.

[0023] Figure 5 This is a top view of the vehicle body of the tennis launching device according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the tennis launching device without the vehicle body according to an embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the launching component of the tennis launching device according to an embodiment of the present invention.

[0026] 100. Tennis launching device;

[0027] 1. Vehicle body; 11. Temporary storage compartment;

[0028] 2. Transport assembly; 21. First transport pipe; 22. Second transport pipe; 23. First rotating roller;

[0029] 3. Launching assembly; 31. Launch tube; 32. First launching element; 321. First drive wheel; 322. Second drive wheel;

[0030] 33. Second launching component; 331. Fourth drive wheel; 332. Fifth drive wheel;

[0031] 4. Dial; 41. Through hole; 5. Mounting bracket; 6. Signal transmission assembly; 7. Camera assembly; 8. Threaded rod. Detailed Implementation

[0032] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] The tennis launching device 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0034] like Figure 1-7 As shown, the tennis ball launching device 100 according to an embodiment of the present invention includes a vehicle body 1, a transport component 2, and a launching component 3.

[0035] The vehicle body 1 has a temporary storage compartment 11, which is used to store tennis balls. Specifically, as shown... Figure 4 As shown, a temporary storage compartment 11 is provided on the upper surface of the vehicle body 1. The temporary storage compartment 11 is used to store tennis balls to meet the needs of long-term training or competition.

[0036] The transport component 2 is mounted on the vehicle body 1, and one end of the transport component 2 is connected to the temporary storage compartment 11 so that tennis balls inside the temporary storage compartment 11 can be transported via the transport component 2. Specifically, as shown... Figures 1-4 As shown, the transport component 2 is installed on the vehicle body 1, and the inlet of the transport component 2 is connected to the outlet of the temporary storage bin 11. A smooth tennis ball transmission channel is formed inside the transport component 2, so that the tennis balls in the temporary storage bin 11 can be transported to the next stage in an orderly and stable manner through the transport component 2, which improves the continuity and efficiency of tennis ball launch and reduces the labor intensity of operators.

[0037] Launching assembly 3 includes a launching tube 31, a first launching element 32, and a second launching element 33. The launching tube 31 is mounted on and communicates with the transport assembly 2, so that a tennis ball can be transported from the transport assembly 2 to the launching tube 31. The launching tube 31 is positioned relative to the vehicle body 1 in the width direction of the vehicle body 1 (e.g., ...). Figure 2 The launch tube 31 (shown in the front-back direction) is rotatable to adjust the launch angle of the launch tube 31. The first launcher 32 and the second launcher 33 are both mounted on the launch tube 31, with at least a portion of each located inside the launch tube 31. The first launcher 32 is used to position the tennis ball, and the second launcher 33 is located on the side of the first launcher 32 away from the transport assembly 2. The second launcher 33 is used to accelerate the tennis ball. Specifically, as shown... Figure 1 , Figure 6 and Figure 7As shown, the launch tube 31 is located on the right side of the transport component 2 and is connected to the transport component 2, ensuring that the tennis ball can smoothly enter the launch tube 31 from the transport component 2. The launch tube 31 can rotate in the front-back direction on the transport component 2, and the launch angle of the launch tube 31 can be adjusted according to actual needs. In addition, the first launcher 32 and the second launcher 33 are both arranged on the launch tube 31. At least a portion of the first launcher 32 and the second launcher 33 pass through the launch tube 31 and are located inside the launch tube 31. The function of the first launcher 32 is to position the tennis ball. After the tennis ball is transported into the launch tube 31, the first launcher 32 can ensure that the tennis ball is in the correct launch position. If the position of the tennis ball is not accurate, the subsequent acceleration and launch will be affected, resulting in deviation of the launch direction or insufficient launch force. Thus, the accuracy and stability of the tennis ball launch are improved by the precise positioning of the first launcher 32. The second launcher 33 is used to accelerate the tennis ball and is located at the right end of the first launcher 32. After the tennis ball is accurately positioned and launched by the first launcher 32, the second launcher 33 drives the tennis ball to accelerate, so that the tennis ball can gain enough speed to be successfully launched. Thus, the coordinated work of the first launcher 32 and the second launcher 33 ensures that the tennis ball can be launched accurately and efficiently, improving the accuracy and stability of the tennis ball launch and enhancing the continuity and efficiency of the tennis ball launcher.

[0038] The tennis ball launching device 100 of this utility model embodiment includes a vehicle body 1, a transport component 2, and a launching component 3. The vehicle body 1 drives the transport component 2 and the launching component 3 to move on the court, so that the transport component 2 and the launching component 3 are transported to a preset position. The transport component 2 transports the tennis ball, ensuring the smoothness of the tennis ball launching device 100. The first launching element 32 of the launching component 3 pre-positions the tennis ball, ensuring that the tennis ball is in the correct launching position, reducing ballistic deviation, and improving the hit rate of the tennis ball launching device 100. The second launching component 3 accelerates the tennis ball, ensuring the launching speed of the tennis ball and improving the launching efficiency of the tennis ball launching device 100.

[0039] In some embodiments, the first launching member 32 includes a first driving wheel 321, a second driving wheel 322, and a third driving wheel. The first driving wheel 321, the second driving wheel 322, and the third driving wheel are equally spaced along the circumference of the launching tube 31, and all three driving wheels are rotatable relative to the launching tube 31. The first driving wheel 321, the second driving wheel 322, and the third driving wheel define a positioning cavity so that the tennis ball is positioned within the positioning cavity. Specifically, as... Figure 1 , Figure 6 and Figure 7As shown, the first drive wheel 321, the second drive wheel 322, and the third drive wheel are all mounted on the launching tube 31, and are arranged at equal intervals along the circumference of the launching tube 31. This ensures balanced force distribution among the first drive wheel 321, the second drive wheel 322, and the third drive wheel, guaranteeing stable support for the tennis ball within the positioning cavity. Each of the first drive wheel 321, the second drive wheel 322, and the third drive wheel is driven by a built-in motor, allowing them to adjust their speed and direction as needed to adapt to different launching angles and forces. When the tennis ball is transported into the launching tube 31 via the transport assembly 2, it is subjected to uniform compression and support from the first drive wheel 321, the second drive wheel 322, and the third drive wheel, thus being precisely positioned within the positioning cavity. This not only improves launching accuracy but also effectively prevents the tennis ball from shaking or deviating during launch.

[0040] Furthermore, compared to two drive wheels, the three drive wheels—first drive wheel 321, second drive wheel 322, and third drive wheel—not only more effectively prevent the tennis ball from wobbling within the positioning cavity (the tennis ball needs to remain stationary or slightly moving before launch so that the second launching component 33 can accurately accelerate it), but also ensure that the tennis ball receives uniform compression and support forces within the positioning cavity. This balanced force helps maintain the tennis ball's stable posture, preventing it from shifting or tilting before launch. Finally, the specifications of the tennis ball (such as diameter and weight) may vary depending on the brand, model, or competition requirements; the three drive wheels can accommodate tennis balls of different sizes, ensuring they are all stably supported and positioned within the positioning cavity. This improves the versatility and compatibility of the launcher.

[0041] In some embodiments, the second launching member 33 includes a fourth driving wheel 331, a fifth driving wheel 332, and a sixth driving wheel. The fourth driving wheel 331, the fifth driving wheel 332, and the sixth driving wheel are equally spaced along the circumference of the launching tube 31, and all three driving wheels are rotatable relative to the launching tube 31. The fourth driving wheel 331, the fifth driving wheel 332, and the sixth driving wheel define an acceleration chamber, so that when the tennis ball passes through the acceleration chamber, the fourth driving wheel 331, the fifth driving wheel 332, and the sixth driving wheel accelerate the tennis ball. Specifically, as... Figure 1 , Figure 6 and Figure 7As shown, the fourth drive wheel 331, the fifth drive wheel 332, and the sixth drive wheel are all mounted on the launch tube 31, and are arranged at equal intervals along the circumference of the launch tube 31 to ensure that the tennis ball receives a uniform and effective driving force during launch. The fourth drive wheel 331, the fifth drive wheel 332, and the sixth drive wheel are driven by built-in motors, allowing the fourth drive wheel 331, the fifth drive wheel 332, and the sixth drive wheel to adjust their speed and direction as needed. The fourth drive wheel 331, the fifth drive wheel 332, and the sixth drive wheel can be adjusted according to different launch requirements. For example, the launch angle and force can be adjusted by changing the rotation speed and direction of the fourth drive wheel 331, the fifth drive wheel 332, and the sixth drive wheel, thereby meeting different competition or training requirements and adapting to different launch angles and forces. The three drive wheels, namely the fourth drive wheel 331, the fifth drive wheel 332, and the sixth drive wheel, are arranged to form an acceleration chamber. The acceleration chamber can maximize the launch speed and accuracy of the tennis ball. When the tennis ball is sent into this acceleration chamber, it will be simultaneously pushed by the fourth drive wheel 331, the fifth drive wheel 332, and the sixth drive wheel. Through the synergistic effect of the driving forces, the tennis ball is accelerated, enabling it to obtain sufficient kinetic energy in a short time, so that it can be launched at high speed and in a stable state, thereby improving the launch efficiency of the tennis ball.

[0042] Furthermore, while ensuring acceleration efficiency and stability, the design of the fourth drive wheel 331, the fifth drive wheel 332, and the sixth drive wheel also considers cost-effectiveness. Too many drive wheels would increase manufacturing and maintenance costs, and two drive wheels might not be able to meet the requirements for acceleration efficiency and stability, failing to provide sufficient support and guidance for the tennis ball, causing it to wobble or deviate during acceleration. Therefore, the arrangement of the fourth drive wheel 331, the fifth drive wheel 332, and the sixth drive wheel ensures that the manufacturing cost of the tennis ball launching device 100 is controlled while also meeting the performance requirements of the tennis ball launching machine.

[0043] In some embodiments, the angular velocities of the first drive wheel 321, the second drive wheel 322, and the third drive wheel are equal, as are the angular velocities of the fourth drive wheel 331, the fifth drive wheel 332, and the sixth drive wheel, and the ratio of the angular velocity of the first drive wheel 321 to that of the fourth drive wheel 331 is 1:2. Specifically, the diameters and angular velocities of the first drive wheel 321, the second drive wheel 322, and the third drive wheel are all equal. This ensures that the first drive wheel 321, the second drive wheel 322, and the third drive wheel uniformly provide compressive and supporting forces to the tennis ball, helping to prevent the tennis ball from shaking or shifting within the positioning cavity, ensuring that the tennis ball is in a stable state before launch. Furthermore, the uniform force distribution can reduce wear between the drive wheels and the tennis ball, extending the service life of the device. In other words, if the angular velocities of the first drive wheel 321, the second drive wheel 322, and the third drive wheel are inconsistent, the tennis ball will be subjected to uneven compressive forces within the positioning cavity, thereby accelerating the wear of the first drive wheel 321, the second drive wheel 322, the third drive wheel, and the tennis ball. In addition, the first drive wheel 321, the second drive wheel 322, and the third drive wheel with equal angular velocities can ensure that the force state of the tennis ball is consistent each time it is launched, thereby improving the consistency of the launch. If the angular velocities of the first drive wheel 321, the second drive wheel 322, and the third drive wheel are inconsistent, the launch speed and angle of the tennis ball will deviate from the predetermined value, affecting the accuracy of the launch.

[0044] The equal angular velocities and radii of the fourth, fifth, and sixth drive wheels (331, 332, and 332) ensure a more uniform pushing force on the tennis ball, contributing to stable acceleration and a smooth, controllable launch speed. Furthermore, the uniform angular velocity distribution improves the efficiency with which the drive wheels convert mechanical energy into kinetic energy. When all six wheels rotate at the same angular velocity, they can transmit power to the tennis ball more efficiently, allowing it to reach the desired launch speed in a shorter time. Secondly, having the fourth, fifth, and sixth drive wheels with equal angular velocities reduces unnecessary energy consumption. If the angular velocities of these wheels are inconsistent, additional energy is required to overcome the uneven propulsion force, increasing the device's energy consumption and reducing its efficiency. Finally, inconsistent angular velocities may cause the tennis ball to experience uneven propulsion force during acceleration, resulting in deviations or deviations from the intended launch trajectory.

[0045] The first drive wheel 321, the second drive wheel 322, and the third drive wheel are responsible for sending the tennis ball into the initial stage of the launch path, while the fourth drive wheel 331, the fifth drive wheel 332, and the sixth drive wheel are responsible for providing additional acceleration when the tennis ball is about to leave the launcher. According to the utility model's experiments, if the ratio of the angular velocity of the first drive wheel 321 to the angular velocity of the fourth drive wheel 331 is set too small, the rotation speed of the first drive wheel 321 in the initial stage will be relatively high, causing the tennis ball to gain too much speed in the initial stage. This may cause the tennis ball to lose control on the launch path, or even lead to launch failure. Moreover, although the rotation speed of the drive wheels in the acceleration stage will also increase compared to the initial stage, it may not be able to provide enough speed increment to meet the acceleration requirements of the tennis ball. This may result in the tennis ball having insufficient speed when leaving the launcher, failing to reach the predetermined launch speed and trajectory. If the ratio of the angular velocity of the first drive wheel 321 to that of the fourth drive wheel 331 is set too large, the initial rotational speed of the drive wheels will be relatively low, resulting in the tennis ball gaining too little speed in the initial stage. This may cause the tennis ball to require more energy and time in the subsequent acceleration stage to reach the predetermined speed, thus affecting the launch efficiency. Furthermore, the fourth drive wheel 331 may over-accelerate the tennis ball during the acceleration stage, causing the tennis ball to leave the launcher at too high a speed or be unstable, increasing the uncertainty of the tennis ball during flight and reducing the accuracy of the launch. In summary, by setting an angular velocity ratio of 1:2, it is possible to ensure that the tennis ball obtains an appropriate speed increment during these two stages, thereby achieving the predetermined launch speed and trajectory.

[0046] In some embodiments, the tennis ball launching device 100 further includes a dial 4, which is disposed within a storage chamber 11 and rotatable relative to the storage chamber 11 in a vertical direction. The outer peripheral surface of the dial 4 and the inner peripheral surface of the storage chamber 11 are spaced apart in an inward-outward direction. The dial 4 has a plurality of through holes 41 extending through the dial 4 in a vertical direction, and the plurality of through holes 41 are spaced apart circumferentially on the dial 4. The tennis ball can be disposed in the through holes 41 so that the dial 4 can rotate the tennis ball to propel it into the transport assembly 2. Specifically, as shown in the figure... Figure 4 As shown, the dial 4 is a horizontal disc and is located inside the temporary storage compartment 11. The dial 4 is driven by a motor to rotate within the temporary storage compartment 11. The outer circumference of the dial 4 is provided with multiple through holes 41 that penetrate the dial 4 in the vertical direction. The multiple through holes 41 are equally spaced along the circumference of the dial 4. Each through hole 41 can accommodate a tennis ball. When the dial 4 rotates, it causes the dial 4 to drive the tennis ball to rotate within the temporary storage compartment 11. The inlet of the transport component 2 is located below the temporary storage compartment 11 and is positioned opposite the dial 4 in the vertical direction, so that the tennis ball will flow smoothly into the transport component 2 through the dial 4.

[0047] In some embodiments, the tennis ball launching device 100 further includes a mounting frame 5, which is mounted on the vehicle body 1 and rotatable relative to the vehicle body 1 in the vertical direction. The launching assembly 3 is mounted on the mounting frame 5 and rotatable relative to the mounting frame 5 in the width direction of the vehicle body 1. The transport assembly 2 includes a first transport pipe 21 and a second transport pipe 22. The first transport pipe 21 is mounted on the vehicle body 1, with one end of the first transport pipe 21 connected to the temporary storage compartment 11, and the other end of the first transport pipe 21 connected to one end of the second transport pipe 22. The second transport pipe 22 is mounted on the mounting frame 5 and connected to the launching assembly 3. Specifically, as shown... Figure 1 and Figure 2 As shown, the mounting frame 5 is mounted on the vehicle body 1 and can rotate on the vehicle body 1 in the vertical direction. The launching component 3 is mounted on the mounting frame 5 and can rotate on the mounting frame 5 in the front-back direction. The launching angle of the launching component 3 can be adjusted by the mounting frame 5 to meet the serving requirements in different scenarios. A part of the first transport pipe 21 is located below the temporary storage compartment 11 and is connected to the temporary storage compartment 11. This allows another part of the temporary storage compartment 11 to extend in the vertical direction and be connected to the second transport pipe 22. The second transport pipe 22 is mounted on the mounting frame 5 and is connected to the launching component 3. Thus, the tennis ball is transported to the launching component 3 through the first transport pipe 21 and the second transport pipe 22.

[0048] It is worth noting that the rotation of the mounting frame 5 can be driven by a motor. A threaded rod 8 can be provided on the left side of the launching component 3. The upper end of the threaded rod 8 is connected to the launching component 3, and the lower end of the threaded rod 8 is connected to the mounting frame 5 through a nut. Thus, by rotating the nut, the threaded rod 8 moves in the up-down direction, thereby driving the launching component 3 to rotate in the front-back direction.

[0049] In some embodiments, the transport assembly 2 further includes a plurality of first rotating rollers 23, which are sequentially arranged on the first transport pipe 21 along its extension direction, and / or a plurality of second rotating rollers, which are sequentially arranged on the second transport pipe 22 along its extension direction. Thus, by rotatably mounting the first rotating rollers 23 on the first transport pipe 21 and rotatably arranging the second rotating rollers on the second transport pipe 22, the transport efficiency of the transport assembly 2 is improved, and the entire transport process is made smoother and more reliable.

[0050] In some embodiments, the second transport tube 22 is located on one side of the mounting bracket 5, and the axis of the upper end of the second transport tube 22 coincides with the rotation axis of the launching tube 31. Specifically, as shown in the figure... Figure 2 and Figure 6As shown, the second transport tube 22 is located on the front side of the mounting frame 5 and is generally C-shaped. The lower end of the second transport tube 22 is connected to the first transport tube 21, and the upper end of the second transport tube 22 is connected to the launching tube 31. The extension direction of the upper end of the second transport tube 22 coincides with the rotation axis of the launching tube 31. Thus, when the second transport tube 22 rotates in the front-back direction, it can be ensured that the second transport tube 22 and the launching tube 31 are always connected, thereby ensuring the continuity and stability of the tennis ball during transmission.

[0051] In some embodiments, the tennis ball launching device 100 further includes a pushing component (not shown in the figure), which is disposed within the launching tube 31 and movable relative to the launching tube 31 along the axis of the launching tube 31, so that the pushing component pushes the tennis ball to the first launching member 32. Specifically, the pushing component is a push rod, a portion of which passes through the launching tube 31 and is movable in the left-right direction within the launching tube 31. When the tennis ball moves in the transport component 2, the push rod is located to the left of the outlet of the first transport tube 21. When the tennis ball is transported into the launching tube 31, the push rod pushes the tennis ball to the right so that the tennis ball is transported into the positioning cavity of the first launching member 32.

[0052] It is worth noting that the push rod can be driven by a motor, meshing gears and racks. The motor is mounted on the mounting bracket 5, and the rack is connected to the push rod, so that the motor drives the gears and racks to mesh and transmit power to move the push rod within the launching tube 31.

[0053] In some embodiments, the tennis ball launching device 100 further includes a camera component 7, a control component, and a signal transmission component 6. The camera component 7 and the signal transmission component 6 are both mounted on the launching component 3. The camera component 7 is used to capture the playing environment, and it is connected to the signal transmission component 6 to transmit the data captured by the camera component 7. The control component is mounted on the vehicle body 1 and connected to both the vehicle body 1 and the launching component 3 to control both the vehicle body 1 and the launching component 3. Specifically, as... Figure 1 , Figure 2 and Figure 6As shown, the camera component 7 can be a camera mounted on the transmitting component 3. It captures player movements, net positions, and the layout of the field. The footage captured by the camera component 7 is transmitted to a designated receiving end, such as the coach's bench, referee's bench, or data center, via the signal transmission component 6. The signal transmission component 6 employs wireless transmission technology, ensuring stable, fast, and accurate data transmission. Regardless of the transmitter's location on the field, its captured data can be acquired and analyzed in a timely manner, providing strong support for the smooth running of the match. The control component is responsible for directing and coordinating the work of each component. It is mounted on the vehicle body 1 and connected to both the vehicle body 1 and the transmitting component 3. Through the control component, it enables functions such as movement control of the vehicle body 1 and adjustment of the launching angle and force of the transmitting component 3. Furthermore, the control component can receive data feedback from the camera component 7 and the signal transmission component 6, making corresponding adjustments and optimizations based on changes in the match environment to ensure the transmitter remains in optimal working condition.

[0054] It is worth mentioning that the intelligent components of the tennis ball launching device 100 do not exist in isolation, but rather cooperate and work together. They are seamlessly connected through internal data interfaces and communication protocols, forming a highly integrated intelligent system. This intelligent system not only improves the automation level and working efficiency of the launcher, but also brings users a more convenient, intelligent and efficient user experience.

[0055] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0058] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A tennis ball launching device, characterized in that, include: The vehicle body has a temporary storage compartment for storing tennis balls; A transport assembly is mounted on the vehicle body and one end of the transport assembly is connected to the temporary storage compartment so that tennis balls in the temporary storage compartment can be transported by the transport assembly. A launching assembly includes a launching tube, a first launching element, and a second launching element. The launching tube is disposed on and communicates with the transport assembly to transport a tennis ball within the transport assembly to the launching tube. The launching tube is rotatable relative to the vehicle body about the width of the vehicle body to adjust the launching angle. Both the first and second launching elements are disposed on the launching tube, and at least a portion of the first and second launching elements are located within the launching tube. The first launching element is used to position the tennis ball, and the second launching element is located on the side of the first launching element away from the transport assembly. The second launching element is used to accelerate the tennis ball.

2. The tennis ball launching device according to claim 1, characterized in that, The first launching element includes a first driving wheel, a second driving wheel, and a third driving wheel. The first driving wheel, the second driving wheel, and the third driving wheel are equally spaced along the circumference of the launching tube and are all rotatable relative to the launching tube. The first driving wheel, the second driving wheel, and the third driving wheel define a positioning cavity so that the tennis ball is positioned within the positioning cavity.

3. The tennis ball launching device according to claim 2, characterized in that, The second launching element includes a fourth driving wheel, a fifth driving wheel, and a sixth driving wheel. The fourth driving wheel, the fifth driving wheel, and the sixth driving wheel are equally spaced along the circumference of the launching tube and are all rotatable relative to the launching tube. The fourth driving wheel, the fifth driving wheel, and the sixth driving wheel define an acceleration cavity so that when the tennis ball passes through the acceleration cavity, the fourth driving wheel, the fifth driving wheel, and the sixth driving wheel accelerate the tennis ball.

4. The tennis ball launching device according to claim 3, characterized in that, The first drive wheel, the second drive wheel, and the third drive wheel have equal angular velocities, the fourth drive wheel, the fifth drive wheel, and the sixth drive wheel have equal angular velocities, and the ratio of the angular velocity of the first drive wheel to the angular velocity of the fourth drive wheel is 1:

2.

5. The tennis ball launching device according to claim 1, characterized in that, It also includes a dial, which is disposed in the temporary storage compartment and is rotatable about the vertical direction relative to the temporary storage compartment. The outer peripheral surface of the dial and the inner peripheral surface of the temporary storage compartment are spaced apart in the inward and outward directions. The dial is provided with a plurality of through holes that penetrate the dial in the vertical direction. The plurality of through holes are spaced apart in the circumferential direction of the dial. The tennis ball can be disposed in the through holes so that the dial can rotate the tennis ball to move the tennis ball into the transport component.

6. The tennis ball launching device according to claim 1, characterized in that, It also includes a mounting bracket, which is mounted on the vehicle body and rotatable relative to the vehicle body in the vertical direction. The launching assembly is mounted on the mounting bracket and rotatable relative to the mounting bracket in the width direction of the vehicle body. The transport assembly includes a first transport pipe and a second transport pipe. The first transport pipe is mounted on the vehicle body and one end of the first transport pipe is connected to the temporary storage compartment. The other end of the first transport pipe is connected to one end of the second transport pipe. The second transport pipe is mounted on the mounting bracket and is connected to the launching assembly.

7. The tennis ball launching device according to claim 6, characterized in that, The transport assembly further includes a plurality of first rotating rollers, which are sequentially arranged on the first transport pipe along the extension direction of the first transport pipe, and / or a plurality of second rotating rollers, which are sequentially arranged on the second transport pipe along the extension direction of the second transport pipe.

8. The tennis ball launching device according to claim 6, characterized in that, The second transport tube is located on one side of the mounting bracket, and the axis of the upper end of the second transport tube coincides with the rotation axis of the launch tube.

9. The tennis ball launching device according to claim 1, characterized in that, It also includes a pushing component disposed within the launch tube and movable relative to the launch tube along the axis of the launch tube, so that the pushing component pushes the tennis ball to the first launcher.

10. The tennis ball launching device according to claim 1, characterized in that, It also includes a camera component, a control component, and a signal transmission component. The camera component and the signal transmission component are both mounted on the transmitting component. The camera component is used to capture the competition environment. The camera component is connected to the signal transmission component so that the data captured by the camera component can be transmitted through the signal transmission component. The control component is mounted on the vehicle body and connected to the vehicle body and the transmitting component so as to control the vehicle body and the transmitting component.

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