Tennis ball launching apparatus and tennis ball machine having same
The tennis ball serving device, designed with a two-axis rotating structure, solves the problems of complex structure and inconvenient operation of existing equipment, realizes multi-dimensional serving methods, meets diverse training needs, and has good stability and ease of use.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SHENZHEN ENHANCED POWER TECH CO LTD
- Filing Date
- 2026-01-20
- Publication Date
- 2026-07-23
AI Technical Summary
Existing tennis serving equipment is complex in structure, expensive, unable to flexibly simulate various serving methods, and inconvenient to operate, making it difficult to meet complex training needs.
It adopts a two-axis rotating structure design, which controls the angle and direction of the serving mechanism through independent first and second rotating axes. Combined with guide rails and serving wheels, it realizes multi-dimensional serving methods, and improves the stability and accuracy of the device through drive motors and auxiliary wheels.
It enables diverse serving methods to meet different training needs. The device has a simple and easy-to-operate structure, high stability and reliability, and wide applicability.
Smart Images
Figure CN2026073571_23072026_PF_FP_ABST
Abstract
Description
A tennis ball serving device and a tennis machine having the same. Technical Field
[0001] This application belongs to the technical field of tennis training equipment, specifically relating to a tennis ball serving device and a tennis machine having the same. Background Technology
[0002] Tennis is a ball sport, and with its increasing popularity and development, the demand for tennis training is also growing. Receiving technique is a crucial part of tennis training. Tennis machines, as a type of training device, use robotic arms or rotating wheels to launch tennis balls to designated locations at fixed angles and speeds, allowing users to practice receiving even when playing alone.
[0003] However, most existing tennis serving devices are based on mechanical design and usually rely on a single rotating axis to control the direction and angle of the serve. Although they can achieve a certain degree of adjustment of the serve angle and speed, they cannot flexibly simulate a variety of different serve methods and can only provide a single angle or a single method of serve. The diversity of their motion trajectory and hitting methods is far from meeting the complex needs of actual training.
[0004] Although some high-end tennis machines have a wide range of functions, they are often characterized by complex structures, high costs, and difficulty in operation, which can affect the user experience and make adjustments and maintenance more troublesome. Summary of the Invention
[0005] In order to overcome the shortcomings of the prior art, this application proposes a tennis ball serving device, including a fixed base, a rotating bracket rotatably connected to the fixed base via a first rotating shaft, and a ball serving mechanism rotatably connected to the rotating bracket via a second rotating shaft;
[0006] The tennis ball serving device further includes a first driving member that drives the rotating bracket to rotate relative to the fixed base via the first rotating shaft, and a second driving member that drives the serving mechanism to rotate relative to the rotating bracket via the second rotating shaft;
[0007] The first rotating shaft and the second rotating shaft have different rotation directions.
[0008] Furthermore, a groove is provided on the rotating bracket corresponding to the position of the serving mechanism, and the width of the cross-section of the groove in the rotation direction of the second rotating shaft is greater than the width of the cross-section of the serving mechanism in the rotation direction of the second rotating shaft, so that the serving mechanism can pass through the groove when it rotates relative to the rotating bracket through the second rotating shaft.
[0009] Preferably, the first driving component includes a first driving motor, which can drive the rotating bracket to rotate relative to the fixed base within an angle range of -180° to +180° via the first rotating shaft;
[0010] The second driving component includes a second driving motor. The initial serving angle of the serving mechanism is between the horizontal direction and the vertical upward direction. The second driving motor can drive the serving mechanism to rotate relative to the rotating bracket via the second rotating shaft within an angle range of -45° to +45°.
[0011] Preferably, a plurality of auxiliary wheels are provided between the fixed base and the rotating bracket, and each of the auxiliary wheels is connected to the first driving member so that the rotating bracket is driven by the first driving member to rotate relative to the fixed base through the first rotating shaft.
[0012] Furthermore, the fixed base is disposed below the rotating bracket, and the auxiliary wheel is disposed on the side of the rotating bracket near the fixed base and abuts against the fixed base.
[0013] Specifically, the serving mechanism includes a guide rail, with a ball-scoring end and a serving end at each end of the guide rail, and a serving wheel at the serving end of the guide rail.
[0014] Furthermore, the guide rail has protruding blocking plates on both sides, and the inner side of the guide rail is recessed downward to form a guide lane for guiding the movement trajectory of the tennis ball.
[0015] Specifically, the serving wheel includes a first wheel and a second wheel, and the serving mechanism also includes a wheel mounting plate fixedly connected to the guide rail, with the middle part of the wheel mounting plate fixedly connected to the guide rail;
[0016] The first and second rollers are respectively disposed at both ends of the roller mounting plate, and there is a gap between the first roller and the second roller that is no larger than the diameter of a tennis ball.
[0017] Preferably, the rotation direction of the first rotating shaft is perpendicular to the rotation direction of the second rotating shaft.
[0018] This application also proposes a tennis machine, including a tennis ball serving device as described above.
[0019] This application has at least the following beneficial effects:
[0020] The tennis serving device proposed in this application allows the serving mechanism to move in two different directions relative to the fixed base through independent first and second rotating shafts, thereby flexibly adjusting the serving angle of the device, realizing various serving methods and simulating different serving trajectories. This can help users conduct diversified and more targeted training. The overall structure of the device is simple, easy to carry, easy to operate, and has wide applicability.
[0021] Furthermore, the tennis ball serving device proposed in this application can effectively avoid interference between the serving mechanism and the rotating support when the ball is rotating by opening grooves in the rotating support, thereby enhancing the freedom of movement of the serving mechanism, avoiding mechanical conflicts, ensuring smooth movement, enabling the two drive motors to achieve rotation within a wide range of angles, and reducing friction and instability when the rotating support is rotating, thereby improving the response speed and accuracy of the rotating support and ensuring that the rotating support is more stable during rotation. At the same time, the auxiliary wheel can support the rotating support, making the overall structure of the device more stable.
[0022] The combination of the guide rail and the serving wheel in the serving mechanism helps guide the tennis ball along the set trajectory and ensures that the tennis ball can be launched stably. The blocking plates on both sides of the guide rail can prevent the tennis ball from deviating from the predetermined trajectory and ensure that the tennis ball always moves along the guide rail. The concave ball lane design on the inner side can better control the movement path of the tennis ball and prevent it from deviating from the guide rail. The design of the first and second wheels can control the movement trajectory and speed of the tennis ball through precise gaps. The rotation directions of the first and second shafts are perpendicular to each other, which can reduce mutual interference and more accurately control the rotation of the rotating support and the serving mechanism, thereby improving the movement accuracy and response speed.
[0023] Therefore, this application proposes a tennis serving device and a tennis machine having the same. The tennis serving device proposed in this application can realize multi-dimensional serving methods through a two-axis rotation structure design, and can simulate a variety of serving and hitting situations, thereby meeting the needs of various types of tennis training. The overall structure of the device is simple and uncomplicated, easy to use, and has good stability and reliability. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 is a schematic diagram of the overall structure of the tennis ball serving device provided in Embodiment 1;
[0026] Figure 2 is a schematic diagram of the tennis ball serving device from another angle;
[0027] Figure 3 is a schematic diagram of the tennis ball serving device after the rotating bracket in Figure 2 has rotated;
[0028] Figure 4 is a side view of the tennis ball serving device;
[0029] Figure 5 is a schematic diagram of the tennis ball serving device after the serving mechanism in Figure 3 has rotated.
[0030] Reference numerals in the attached figures: 1-Fixed base; 2-Rotating bracket; 3-Serving mechanism; 11-First rotating shaft; 21-Second rotating shaft; 22-First drive motor; 23-Second drive motor; 24-Base frame; 25-Side frame; 26-Auxiliary wheel; 27-Groove; 31-Guide rail; 32-First rotating wheel; 33-Second rotating wheel; 34-Connecting rod; 35-Roller mounting plate; 36-Third rotating shaft; 37-Fourth rotating shaft; 38-Blocking plate. Detailed Implementation
[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0032] Various embodiments of this application will be described more fully below. This application may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of this application to the specific embodiments disclosed herein, but rather this application should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of this application.
[0033] In the following, the terms “comprising” or “may include” as used in the various embodiments of this application indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in the various embodiments of this application, the terms “comprising,” “having,” and their cognates are intended only to indicate a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing, or the possibility of adding one or more combinations of features, numbers, steps, operations, elements, components, or combinations of the foregoing.
[0034] In various embodiments of this application, the expression "or" or "at least one of A and / or B" includes any combination or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A and / or B" may include A, may include B, or may include both A and B.
[0035] The terms used in the various embodiments of this application (such as "first," "second," etc.) may modify various constituent elements in the various embodiments, but do not limit the corresponding constituent elements. For example, the above terms do not limit the order and / or importance of the elements. The above terms are only used for the purpose of distinguishing one element from other elements. For example, a first user device and a second user device refer to different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.
[0036] It should be noted that, in this application, unless otherwise explicitly specified and defined, terms such as "installation," "connection," and "fixation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0037] In this application, those skilled in the art should understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings and are only for the purpose of describing this application 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 application.
[0038] The terminology used in the various embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the various embodiments of this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this application pertain. The terms (such as those defined in a generally used dictionary) are to be interpreted as having the same meaning as in the context of the relevant technical field and are not to be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this application.
[0039] Example 1
[0040] Please refer to Figures 1-5. This embodiment proposes a tennis serving device, including a fixed base 1, a rotating bracket 2 rotatably connected to the fixed base 1 via a first rotating shaft 11, and a serving mechanism 3 rotatably connected to the rotating bracket 2 via a second rotating shaft 21. The tennis serving device also includes a first driving member that drives the rotating bracket 2 to rotate relative to the fixed base 1 via the first rotating shaft 11, and a second driving member that drives the serving mechanism 3 to rotate relative to the rotating bracket 2 via the second rotating shaft 21. The first rotating shaft 11 and the second rotating shaft 21 have different extending directions; preferably, the rotation direction of the first rotating shaft 11 and the rotation direction of the second rotating shaft 21 are perpendicular to each other.
[0041] In this embodiment, the first driving component includes a first driving motor 22, which can drive the rotating bracket 2 to rotate relative to the fixed seat 1 via the first rotating shaft 11 within an angle range of -180° to +180°; the second driving component includes a second driving motor 23, the initial serving angle of the serving mechanism 3 is between the horizontal direction and the vertically upward direction, and the second driving motor 23 can drive the serving mechanism 3 to rotate relative to the rotating bracket 2 via the second rotating shaft 21 within an angle range of -45° to +45°, and preferably the rotation angle of the serving mechanism 3 relative to the rotating bracket 2 via the second rotating shaft 21 can be preferably -23° to +23°; in a specific embodiment, the angle between the initial serving angle of the serving mechanism 3 and the horizontal direction can be 5° to 55° and is preferably 20° to 30°.
[0042] Therefore, the tennis serving device proposed in this embodiment can control the overall angle of the device and the serving angle through the independent first rotating shaft 11 and the second rotating shaft 21, respectively. It can accurately adjust the angle and trajectory of the serve in multiple dimensions, simulate more serving methods, and is suitable for users to conduct tennis training.
[0043] Specifically, the first drive motor 22 and the second drive motor 23 are both mounted on the rotating bracket 2. In this embodiment, the rotating bracket 2 includes a base frame 24 connected to the first rotating shaft 11 and a side frame 25 connected to the second rotating shaft 21. The side frame 25 is fixedly mounted on the base frame 24. The first drive motor 22 is mounted on the base frame 24, and the second drive motor 23 is mounted on the side frame 25. In other embodiments, the base frame 24 and the side frame 25 can be integrally formed.
[0044] Preferably, a plurality of auxiliary wheels 26 are provided between the fixed base 1 and the rotating bracket 2. The auxiliary wheels 26 are connected to the first drive motor 22, which can effectively reduce the friction generated during rotation, improve the smoothness and accuracy of rotation, and realize the rotation of the rotating bracket 2 relative to the fixed base 1 through the first rotating shaft 11 based on the drive of the first drive motor 22. The auxiliary wheels 26 reduce the friction and reduce the direct burden on the rotating shaft, playing a buffering and load-sharing role. It can avoid the error of the serving angle caused by the wobbling or offset of the bracket, and at the same time, it can also avoid the excessive burden on the motor caused by excessive friction, thereby extending the service life of the motor. Furthermore, when the rotating bracket 2 rotates rapidly, the auxiliary wheels 26 can make the movement of the rotating bracket 2 more stable and smooth.
[0045] In this embodiment, the fixed base 1 is located below the rotating bracket 2, and the auxiliary wheel 26 is located on the side of the rotating bracket 2 close to the fixed base 1 and abuts against the fixed base 1. The auxiliary wheel 26 can also enhance the support effect of the fixed base 1 on the rotating bracket 2. Through the contact and support of the auxiliary wheel 26, the fixed base 1 can effectively prevent the rotating bracket 2 from shifting position or deforming during rotation, thereby improving the stability and reliability of the entire device.
[0046] Specifically, the ball-serving mechanism 3 includes a guide rail 31, with the two ends of the guide rail 31 being a ball-scoring end and a ball-serving end, respectively. The ball-scoring end of the guide rail 31 is set to correspond to the ball delivery path, and the ball-serving end of the guide rail 31 is equipped with a ball-serving wheel.
[0047] In this embodiment, the serving wheel consists of a first rotating wheel 32 and a second rotating wheel 33. The first rotating wheel 32 and the second rotating wheel 33 are respectively arranged on both sides of the guide rail 31, and there is a gap between the two rotating wheels that allows the tennis ball to pass through. By adjusting the rotation speed and pressure of the first rotating wheel 32 and the second rotating wheel 33, the ball speed, spin and other parameters of the tennis ball serving device can be controlled. The first rotating wheel 32 and the second rotating wheel 33 are connected to different drive motors to achieve a variety of different serving effects. The tennis ball will be squeezed and accelerated under the high-speed rotation of the rotating wheel, and finally popped out through the gap between the first rotating wheel 32 and the second rotating wheel 33.
[0048] Specifically, the width of the gap between the first roller 32 and the second roller 33 is not greater than the diameter of the tennis ball used; for example, when the diameter of the tennis ball used is 6.8cm, the width of the gap between the first roller 32 and the second roller 33 can be set to 6.5cm.
[0049] Specifically, the second drive motor 23 is connected to the ball-serving mechanism 3 via the connecting rod 34, so as to realize the rotation of the ball-serving mechanism 3 relative to the rotating bracket 2 via the second rotating shaft 21 based on the second drive motor 23 and the connecting rod 34; in this embodiment, the second drive motor 23 is connected to the ball-serving end of the guide rail 31 via the connecting rod 34.
[0050] In this embodiment, the ball-serving mechanism 3 further includes a rotating wheel mounting plate 35 fixedly connected to the guide rail 31. The middle part of the rotating wheel mounting plate 35 is fixedly connected to the guide rail 31. The first rotating wheel 32 and the second rotating wheel 33 are respectively disposed on both sides of the rotating wheel mounting plate 35. The first rotating wheel 32 is connected to a drive motor through a third rotating shaft 36, and the second rotating wheel 33 is connected to another drive motor through a fourth rotating shaft 37. The extending directions of the third rotating shaft 36 and the fourth rotating shaft 37 are the same as those of the second rotating shaft 21.
[0051] Preferably, the guide rail 31 has protruding blocking plates 38 on both sides and the inner side of the guide rail 31 is recessed downward to form a guide channel for guiding the tennis ball along the path of the guide rail 31 to be accurately transmitted to the two service wheels. The blocking plates 38 can effectively prevent the tennis ball from derailing during the process of moving from the ball end of the guide rail 31 to the service end, thereby improving the stability and accuracy of the serve. Preferably, the height of the blocking plates 38 relative to the guide rail 31 is not less than the radius of the tennis ball used.
[0052] The height and angle of the blocking plate 38 relative to the guide rail 31 can be set as needed to adapt to the internal structure of the tennis serving device and the serving requirements; for example, the blocking plate 38 can extend upward away from the guide rail 31 to guide the tennis ball to fall accurately into the guide rail 31.
[0053] Furthermore, a groove 27 is provided on the rotating bracket 2 at the position corresponding to the serving mechanism 3, and the width of the cross-section of the groove 27 in the rotation direction of the second rotating shaft 21 is greater than the width of the cross-section of the serving mechanism 3 in the rotation direction of the second rotating shaft 21. Therefore, when the second drive motor 23 rotates the serving mechanism 3 relative to the rotating bracket 2 via the second rotating shaft 21, the serving mechanism 3 can directly pass through the groove 27 without being limited by the rotating bracket 2, thereby allowing the serving mechanism 3 to have a larger rotation angle when rotating relative to the rotating bracket 2 via the second rotating shaft 21. In this embodiment, the groove 27 is provided on the rotating bracket 2 at the position corresponding to the serving end of the guide rail 31.
[0054] Furthermore, a limiting member is provided on the rotating bracket 2 corresponding to the ball-scoring end of the guide rail 31. The limiting member is used to limit the rotation angle when the guide rail 31 rotates downward at the ball-scoring end and upward at the serving end, thereby preventing the serving angle of the tennis serving device from being too high. Preferably, the first drive motor 22 is located on the rotating bracket 2 below the ball-scoring end of the guide rail 31, so as to simultaneously serve as a limiting member, thereby simplifying the structure of the tennis serving device proposed in this embodiment.
[0055] Example 2
[0056] This embodiment proposes a tennis machine, which includes the tennis ball serving device proposed in Embodiment 1.
[0057] Furthermore, the tennis machine proposed in this embodiment also includes a tennis ball delivery device, the ball delivery path of which corresponds to the ball-scoring end of the guide rail 31.
[0058] In summary, this application proposes a tennis serving device and a tennis machine having the same. The tennis serving device proposed in this application can realize multi-dimensional serving methods through a two-axis rotation structure design, and can simulate a variety of serving and hitting situations, thereby meeting the needs of various types of tennis training. The overall structure of the device is simple and uncomplicated, easy to use, and has good stability and reliability.
[0059] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A tennis ball serving device, characterized in that, It includes a fixed base, a rotating bracket rotatably connected to the fixed base via a first rotating shaft, and a ball-serving mechanism rotatably connected to the rotating bracket via a second rotating shaft; The tennis ball serving device further includes a first driving member that drives the rotating bracket to rotate relative to the fixed base via the first rotating shaft, and a second driving member that drives the serving mechanism to rotate relative to the rotating bracket via the second rotating shaft; The first rotating shaft and the second rotating shaft have different rotation directions.
2. The tennis ball serving device according to claim 1, characterized in that, The rotating bracket has a groove corresponding to the position of the serving mechanism, and the width of the cross-section of the groove in the rotation direction of the second rotating shaft is greater than the width of the cross-section of the serving mechanism in the rotation direction of the second rotating shaft, so that the serving mechanism can pass through the groove when it rotates relative to the rotating bracket through the second rotating shaft.
3. The tennis ball serving device according to claim 1 or 2, characterized in that, The first driving component includes a first driving motor, which can drive the rotating bracket to rotate relative to the fixed base within an angle range of -180° to +180° via the first rotating shaft; The second driving component includes a second driving motor. The initial serving angle of the serving mechanism is between the horizontal direction and the vertical upward direction. The second driving motor can drive the serving mechanism to rotate relative to the rotating bracket via the second rotating shaft within an angle range of -45° to +45°.
4. The tennis ball serving device according to claim 1, characterized in that, A plurality of auxiliary wheels are provided between the fixed base and the rotating bracket, and each of the auxiliary wheels is connected to the first driving member so that the rotating bracket is driven by the first driving member to rotate relative to the fixed base through the first rotating shaft.
5. The tennis ball serving device according to claim 4, characterized in that, The fixed base is located below the rotating bracket, and the auxiliary wheel is located on the side of the rotating bracket near the fixed base and abuts against the fixed base.
6. The tennis ball serving device according to claim 1, characterized in that, The serving mechanism includes a guide rail, with a ball-scoring end and a serving end at each end of the guide rail, and a serving wheel at the serving end of the guide rail.
7. The tennis ball serving device according to claim 6, characterized in that, The guide rail has protruding blocking plates on both sides, and the inner side of the guide rail is recessed downward to form a guide lane for guiding the movement trajectory of the tennis ball.
8. The tennis ball serving device according to claim 6, characterized in that, The serving wheel includes a first wheel and a second wheel, and the serving mechanism also includes a wheel mounting plate fixedly connected to the guide rail, with the middle part of the wheel mounting plate fixedly connected to the guide rail; The first and second rollers are respectively disposed at both ends of the roller mounting plate, and there is a gap between the first roller and the second roller that is no larger than the diameter of a tennis ball.
9. The tennis ball serving device according to claim 1, characterized in that, The rotation direction of the first rotating shaft is perpendicular to the rotation direction of the second rotating shaft.
10. A tennis ball machine, characterized in that, Includes the tennis ball serving device as described in any one of claims 1-9.