Smart racket base
By using the rotating buckle structure and sealing design of the intelligent racket base, the problems of existing racket swing counters being easy to fall off, affecting appearance and feel, and having poor waterproof performance are solved, achieving stable installation and easy maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN KILI ELECTRONICS CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-23
AI Technical Summary
Existing racket swing counters have problems such as being prone to falling off, affecting appearance and feel, lacking waterproof design, and being cumbersome to install.
A smart racket base was designed, which adopts a rotating buckle structure with a screw-on connection and a screw-on locking part, combined with a sealing ring, to encapsulate the sensor module in the installation chamber and connect it coaxially with the racket handle, so as to achieve a stable installation and waterproof effect.
It achieves a secure connection between the racket and the sensor module, preventing detachment and moisture intrusion, maintaining a consistent feel and appearance, and is easy to install and maintain.
Smart Images
Figure CN224388029U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of intelligent sports equipment technology, specifically to an intelligent racket base. Background Technology
[0002] During exercise, user data is collected, summarized, and presented, allowing users to intuitively understand their fitness level and effectively adjust their routines to improve. Previously, exercise data was collected and recorded with the assistance of coaches or training partners, a method requiring high concentration and prone to errors. Now, intelligent auxiliary tools can be used for exercise data collection and presentation, bringing greater convenience.
[0003] Most racket swing counters on the market currently use an external design, attaching to the existing racket handle via an external clamp or rubber sleeve. This design has the following drawbacks:
[0004] 1. It is prone to falling off or shifting during strenuous exercise;
[0005] 2. The appearance is abrupt, affecting the feel and balance of the racket;
[0006] 3. Lacking waterproof design, it is easily affected by sweat, rain, etc.
[0007] 4. Installation is cumbersome and maintenance is inconvenient.
[0008] Therefore, there is an urgent need for a racket swing counter that is structurally sound, highly stable, and easy to install. Utility Model Content
[0009] This utility model addresses the above-mentioned problems by proposing an intelligent racket base, aiming to solve the technical issues in the background art.
[0010] To achieve the above objectives, this utility model provides an intelligent racket base, comprising:
[0011] The mounting base includes a socket and a mounting compartment; the socket is used to connect to the end of the racket handle; a screw-on connection part is provided adjacent to the mounting compartment;
[0012] The sensor module, located in the installation compartment, is used for counting the number of swings, identifying the type and force of the action, and can communicate wirelessly with an external smart terminal.
[0013] The encapsulation end cap is provided with a screw-locking part that matches the screw-connecting part. When the encapsulation end cap is aligned with the mounting base, it rotates in a first direction and locks itself in place by the screw-connecting part and the screw-locking part, thus fixing the sensor module in the mounting chamber; or, when the encapsulation end cap is connected to the mounting base, it rotates in a second direction and disengages the screw-connecting part from the screw-locking part, allowing the encapsulation end cap to be separated from the mounting base.
[0014] A sealing ring is disposed between the encapsulation end cap and the mounting base to isolate the mounting chamber from external communication.
[0015] Furthermore, the screw-on connection portion consists of one or more protrusions distributed on the inner wall of the mounting base and / or the side wall of the mounting compartment; when there are multiple protrusions, a mating groove is provided between each pair of protrusions; the end face of the encapsulation cap is provided with a protruding ring, and the screw-on locking portion is a connecting groove provided on the side wall of the protruding ring, matching the number of protrusions; the connecting groove includes an entrance area and a locking area that are interconnected; when the protrusion falls into the locking area through the entrance area, and the encapsulation cap and the mounting base rotate relative to each other in a first direction to a predetermined angle, it can prevent the encapsulation cap and the mounting base from moving away from each other along the axial direction of the mounting base.
[0016] Furthermore, the screw-on connection portion is one or more connecting grooves distributed on the inner wall of the mounting base and / or the side wall of the mounting compartment; the connecting groove includes an inlet area and a locking area that are interconnected; the end face of the encapsulation end cap is provided with a convex ring, and the screw-on connection portion is a protrusion on the side wall of the convex ring that matches the number of connecting grooves; when there are multiple protrusions, a mating groove is provided between each pair of protrusions; when the protrusion falls into the locking area through the inlet area, and the encapsulation end cap and the mounting base rotate relative to each other in a first direction to a predetermined angle, it can prevent the encapsulation end cap and the mounting base from moving away from each other along the axial direction of the mounting base.
[0017] Furthermore, the sensor module includes a battery and a PCBA; the PCBA is electrically connected to the battery; the PCBA has an onboard low-power Bluetooth chip, a 6-axis inertial sensor, a processing module, and a storage module.
[0018] Furthermore, the PCBA board has an indicator light, and the package end cap has an observation area corresponding to the indicator light.
[0019] Furthermore, the mounting base includes a supporting wall and a partition support plate disposed in the inner cavity of the supporting wall. The partition support plate divides the inner cavity of the supporting wall into the socket hole and the mounting compartment. The partition support plate is provided with an exhaust vent hole that connects the socket hole and the mounting compartment.
[0020] Furthermore, the outer contour of the supporting wall is an octagonal frustum.
[0021] Furthermore, the installation compartment includes an annular wall connected to the partition support plate, and the annular wall is spaced apart from the support vertical wall.
[0022] Furthermore, the socket is interference-fitted to the end of the racket handle.
[0023] Compared with existing technologies, the intelligent racket base provided by this utility model can encapsulate the sensor module in the mounting chamber through the encapsulation end cap and sealing ring, isolating it from the outside environment. Furthermore, by relying on the screw-on connection and the screw-on locking part, the encapsulation end cap rotates relative to the mounting base, locking the two together or disengaging them. This allows the sensor module to be fixed in the mounting chamber, or the encapsulation end cap to be separated from the mounting base, facilitating the removal or placement of the sensor module from the mounting chamber for convenient maintenance and replacement. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the intelligent racket base structure of this application.
[0025] Figure 2 This is a schematic diagram of the intelligent racket base from another perspective.
[0026] Figure 3 This is a cross-sectional view of the smart racket base of this application.
[0027] Figure 4 This is an exploded view of the intelligent racket base structure of this application.
[0028] Figure 5 This is an exploded view of the intelligent racket base structure from another perspective.
[0029] Figure 6 This is a schematic diagram of the mounting structure of the smart racket base of this application.
[0030] Figure 7 This is a schematic diagram of the encapsulation end cap structure of the smart racket base of this application.
[0031] The reference numerals in the figure are as follows: 1. Mounting base; 110. Socket hole; 120. Mounting chamber; 130. Tightening connection part; 131. Protrusion; 132. Docking groove; 140. Ring wall; 2. Sensor module; 210. Battery; 220. PCBA; 3. Encapsulation end cap; 310. Tightening locking part; 311. Inlet area; 312. Locking area; 320. Protruding ring; A. Supporting wall; B. Separating support plate; b. Exhaust vent. Detailed Implementation
[0032] The technical solutions of the present utility model 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 the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. It is understood that the accompanying drawings are provided for reference and illustration only and are not intended to limit the present utility model. The connection relationships shown in the drawings are only for clear description and do not limit the connection method.
[0033] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; or as a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention.
[0034] It should also be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0035] Please refer to Figures 1-7 This embodiment provides a smart racket base, including:
[0036] Mounting base 1, the mounting base 1 includes a socket 110 and a mounting compartment 120; in some embodiments, the socket 110 and the mounting compartment 120 are respectively located at both ends of the mounting base 1, and the opening of the mounting compartment 120 faces away from the opening of the socket 110.
[0037] The socket 110 is used to connect the end of the racket handle; a screw-on connection part 130 is provided adjacent to the mounting chamber 120;
[0038] Sensor module 2, which is located in the mounting compartment 120, is used for counting the number of swings, identifying the type and force of the action, and can communicate wirelessly with an external smart terminal.
[0039] The encapsulation end cap 3 is provided with a screw-locking part 310 that matches the screw-connecting part 130. When the encapsulation end cap 3 is aligned with the mounting base 1, it rotates relative to the first direction and locks itself with the screw-connecting part 130 and the screw-locking part 310, thus fixing the sensor module 2 in the mounting chamber 120. The whole structure is robust and compact.
[0040] Alternatively, when the encapsulation end cap 3 is connected to the mounting base 1 and rotated in the second direction, the screw-on connection part 130 is disconnected from the screw-on locking part 310, and the encapsulation end cap 3 can be separated from the mounting base 1;
[0041] A sealing ring (not shown) is disposed between the encapsulation end cap 3 and the mounting base 1 to isolate the mounting chamber 120 from external communication. This effectively prevents rainwater, sweat, and other liquids from entering the mounting chamber 120 and causing damage to the sensor module 2.
[0042] The mounting base 1 uses the socket 110 to connect to the end of the racket handle, stably connecting the mounting base 1 to the racket handle. It can be coaxial with the racket handle, with a smooth connection to the end of the handle to avoid an abrupt appearance. The outer contour of the mounting base 1, like the racket handle, is a cylindrical structure. Therefore, after the intelligent racket base is connected to the racket, the balance is not significantly affected.
[0043] The connected racket can be a table tennis racket, badminton racket, tennis racket, or other sports equipment.
[0044] The sensor module 2 is encapsulated in the mounting chamber 120 and isolated from the outside environment by using the encapsulation end cap 3 and the sealing ring. Furthermore, by relying on the screw-on connection part 130 and the screw-on locking part 310, the encapsulation end cap 3 rotates relative to the mounting base 1, locking or disengaging the two together. This allows the sensor module 2 to be fixed in the mounting chamber 120, or the encapsulation end cap 3 to be separated from the mounting base 1, facilitating the removal or placement of the sensor module 2 from the mounting chamber 120 for easy maintenance and replacement. The first direction and the second direction are opposite.
[0045] Sensor module 2 can be implemented using existing technologies and is not the focus of innovation in this application, so it will not be elaborated here.
[0046] Example 1
[0047] Please refer to Figures 4-7The screw-on connection part 130 is one or more protrusions 131 distributed on the inner wall of the mounting base 1 and / or the side wall of the mounting compartment 120; when there are multiple protrusions 131, a mating groove 132 is provided between each pair of protrusions 131; the end face of the encapsulation end cover 3 is provided with a protruding ring 320, and the screw-on locking part 310 is a connecting groove provided on the side wall of the protruding ring 320, matching the number of protrusions 131;
[0048] The connecting groove includes an inlet area 311 and a locking area 312 that are connected to each other. When the protrusion 131 falls into the locking area 312 through the inlet area 311, and the encapsulation end cap 3 and the mounting base 1 rotate relative to each other in a first direction to a predetermined angle, the encapsulation end cap 3 and the mounting base 1 can be prevented from moving away from each other along the axial direction of the mounting base 1.
[0049] The locking zone 312 is laid out along the circumference of the convex ring 320 in the length direction.
[0050] The connecting groove is located on the side wall of the convex ring 320. The connecting groove is a concave structure, while the rest of the side wall of the convex ring 320 forms a protrusion. The groove wall of the locking area 312 forms a retaining structure for the protrusion 131 that enters the locking area 312.
[0051] The encapsulation end cap 3 is rotated relative to the mounting base 1 in a first direction to a predetermined angle. This can be either the protrusion 131 being fully inserted into the deepest part of the locking area 312, or the protrusion 131 just entering the locking area 312.
[0052] Example 2
[0053] The screw-on connection is one or more connecting grooves distributed on the inner wall of the mounting base and / or the side wall of the mounting compartment; the connecting groove includes an inlet area and a locking area that are interconnected; the end face of the encapsulation end cap is provided with a convex ring, and the screw-on connection is a protrusion on the side wall of the convex ring that matches the number of connecting grooves; when there are multiple protrusions, a mating groove is provided between each pair of protrusions; when the protrusion falls into the locking area through the inlet area, and the encapsulation end cap and the mounting base rotate relative to each other in a first direction to a predetermined angle, it can prevent the encapsulation end cap and the mounting base from moving away from each other along the axial direction of the mounting base.
[0054] In this embodiment, compared to embodiment one, the convex ring and the connecting groove are mirror images of each other and are arranged on the mounting base and the encapsulation end cap.
[0055] Please refer to Figure 3 and Figure 4 The sensor module 2 includes a battery 210 and a PCBA 220; the PCBA 220 is electrically connected to the battery 210; the PCBA 220 has an onboard low-power Bluetooth chip, a 6-axis inertial sensor, a processing module, and a storage module.
[0056] The battery 210 and PCBA 220 are preferably cylindrical sheets stacked one on top of the other, and are coaxial with the racket handle and mounting base 1.
[0057] Bluetooth Low Energy (BLE) chips can be used for wireless communication with external smart terminals; models such as nRF52832 and GR5526 are available. After each shot, data is broadcast via BLE to the accompanying app or watch on the smart terminal. When not in use, the device enters a low-power standby state and automatically starts up when an action is detected or a timed wake-up is initiated.
[0058] A 6-axis inertial sensor is used to detect acceleration and angular velocity, and combined with the processing module, it enables motion state data acquisition and recognition. A storage module supports local data caching. Combined with built-in algorithms, it can identify the number of swings, motion type, and force.
[0059] In some embodiments, battery 210 is a CR2032 button cell.
[0060] Preferably, the PCBA220 board has an indicator light (not shown), and the package end cap 3 has an observation area (not shown) corresponding to the indicator light.
[0061] Indicator lights are used to display battery level or operating status.
[0062] Please refer to Figure 3 and Figure 5 The mounting base 1 includes a supporting wall A and a partition support plate B disposed in the inner cavity of the supporting wall A. The partition support plate B divides the inner cavity of the supporting wall A into the socket hole 110 and the mounting chamber 120. The partition support plate B is provided with an exhaust vent b that connects the socket hole 110 and the mounting chamber 120.
[0063] The supporting vertical wall A is a sleeve tube structure. When the end of the racket handle is inserted into the sleeve hole 110, to prevent air from being unable to escape from the sleeve hole 110, which would prevent the end of the handle from being completely inserted into the sleeve hole 110, an exhaust vent b is provided.
[0064] Please refer to Figure 1 and Figure 2 The supporting wall A has an octagonal frustum shape.
[0065] The encapsulation end cap 3 corresponds to the supporting vertical wall A, and its projected outline is octagonal.
[0066] This structure not only provides anti-slip properties but also improves grip comfort.
[0067] Please refer to Figure 3 and Figure 5The installation compartment 120 includes an annular wall 140 connected to the partition support plate B, and the annular wall 140 is spaced apart from the support wall A.
[0068] The partition support plate B and the ring wall 140 together form the housing of the installation chamber 120. The ring wall 140 and the support wall A are spaced apart, which can buffer the sensor module 2 inside the installation chamber 120.
[0069] Preferably, the socket 110 is an interference fit to the end of the racket handle.
[0070] This connection structure offers high stability and allows for simple and convenient direct plug-in installation. It avoids the problems of existing external structures that rely on external clamps to connect to the racket and are prone to loosening and detachment.
[0071] In summary, the intelligent racket base provided in this application has the following advantages compared with existing external sensors:
[0072] 1. The structure is integrated and blends seamlessly with the racket handle base, without affecting the appearance or feel of use;
[0073] 2. The installation is stable. The rotating buckle structure formed by the screw-on connection part 130 and the screw-on locking part 310, together with the sealing ring, is resistant to falling off and vibration.
[0074] 3. Comprehensive functions, including motion recognition, data recording, and Bluetooth communication;
[0075] 4. Waterproof and durable, suitable for strenuous exercise and humid environments;
[0076] 5. The battery is replaceable, easy to maintain, and has a long service life;
[0077] 6. Excellent user experience, simple and beautiful design, easy to use, no external accessories required.
[0078] In the specification and claims of this application, the terms "comprising / including" and "having / including" and variations thereof are used to specify the presence of the stated features, values, steps or components, but do not exclude the presence or addition of one or more other features, values, steps, components or combinations thereof.
[0079] Some features of this invention are described in different embodiments for clarity; however, these features may also be described in combination in a single embodiment. Conversely, some features of this invention are described only in a single embodiment for brevity; however, these features may also be described individually or in any suitable combination in different embodiments.
[0080] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A smart racket stand, characterized in that, include: Mounting base, the mounting base includes a socket and a mounting compartment; the socket is used to connect to the end of the racket handle; A screw-on connection is provided adjacent to the installation compartment; The sensor module, located in the installation compartment, is used for counting the number of swings, identifying the type and force of the action, and can communicate wirelessly with an external smart terminal. The encapsulation end cap is provided with a screw-locking part that matches the screw-connecting part. When the encapsulation end cap is aligned with the mounting base, it rotates in a first direction and locks itself in place by the screw-connecting part and the screw-locking part, thus fixing the sensor module in the mounting chamber; or, when the encapsulation end cap is connected to the mounting base, it rotates in a second direction and disengages the screw-connecting part from the screw-locking part, allowing the encapsulation end cap to be separated from the mounting base. A sealing ring is disposed between the encapsulation end cap and the mounting base to isolate the mounting chamber from external communication.
2. The smart racket stand of claim 1, wherein, The screw-on connection part consists of one or more protrusions distributed on the inner wall of the mounting base and / or the side wall of the mounting compartment; when there are multiple protrusions, a mating groove is provided between each pair of protrusions; the end face of the encapsulation cap is provided with a protruding ring, and the screw-on locking part is a connecting groove provided on the side wall of the protruding ring, matching the number of protrusions; the connecting groove includes an entrance area and a locking area that are interconnected; when the protrusion falls into the locking area through the entrance area, and the encapsulation cap and the mounting base rotate relative to each other in a first direction to a predetermined angle, the encapsulation cap and the mounting base can be prevented from moving away from each other along the axial direction of the mounting base.
3. The smart racket stand of claim 1, wherein, The screw-on connection is one or more connecting grooves distributed on the inner wall of the mounting base and / or the side wall of the mounting compartment; the connecting groove includes an inlet area and a locking area that are interconnected; the end face of the encapsulation end cap is provided with a convex ring, and the screw-on connection is a protrusion on the side wall of the convex ring that matches the number of connecting grooves; when there are multiple protrusions, a mating groove is provided between each pair of protrusions; when the protrusion falls into the locking area through the inlet area, and the encapsulation end cap and the mounting base rotate relative to each other in a first direction to a predetermined angle, it can prevent the encapsulation end cap and the mounting base from moving away from each other along the axial direction of the mounting base.
4. The smart racket stand of claim 1, wherein, The sensor module includes a battery and a PCBA; the PCBA is electrically connected to the battery; the PCBA has an onboard low-power Bluetooth chip, a 6-axis inertial sensor, a processing module, and a storage module.
5. The smart racket base of claim 4, wherein, The PCBA board has an indicator light, and the package end cap has an observation area corresponding to the indicator light.
6. The smart racket stand of claim 1, wherein, The mounting base includes a supporting wall and a partition support plate disposed in the inner cavity of the supporting wall. The partition support plate divides the inner cavity of the supporting wall into the socket hole and the mounting compartment. The partition support plate is provided with an exhaust vent hole that connects the socket hole and the mounting compartment.
7. The smart racket base of claim 6, wherein, The supporting wall has an octagonal frustum shape.
8. The smart racket base of claim 6, wherein, The installation compartment includes an annular wall connected to the partition support plate, and the annular wall is spaced apart from the support vertical wall.
9. The smart racket base of claim 1, wherein, The socket is an interference fit connecting the end of the racket handle.