Charging device for shared massager storage device
By designing a dedicated shared charging device for the waist belt massager, the problems of ineffective fixation and low charging efficiency of existing devices have been solved, achieving stable storage and efficient charging, thereby improving the lifespan of the device and the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU YOUPAIRUI TECHNOLOGY CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-09
Smart Images

Figure CN224342955U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a charging device for shared equipment, and more particularly to a charging device for a shared massager storage device. Background Technology
[0002] In existing technologies, shared equipment storage devices are widely used in public places such as shopping malls, gyms, and community centers, providing users with convenient equipment rental services. Taking shared massagers as an example, users rent devices by scanning the QR code on the storage device with a mobile app, take and use them, and then return them to the designated storage point for storage and charging. These devices typically adopt a universal design, supporting various small devices, such as power banks or small massagers. Their usage process includes automatic device status recognition, locking and unlocking mechanisms, and built-in charging ports to ensure that the devices remain fully charged when idle. For example, in a gym, users can rent massagers at any time to relieve fatigue, and simply put them back on the device after use to complete the return process. The entire process emphasizes efficiency and self-service management, enhancing the convenience of the sharing economy. However, existing technologies mainly target general-purpose devices and lack adaptation for specific forms such as belt-type massagers.
[0003] While existing shared storage devices perform well in general scenarios, they lack a specific design adaptation for belt massagers. Specifically, universal storage slots cannot effectively hold the curved shape and size of belt massagers, making them prone to slipping or bumping during storage, increasing the risk of damage. Simultaneously, existing charging devices are not optimized for the unique interface and charging requirements of belt massagers, resulting in low charging efficiency, poor contact, or overcharging issues, affecting device lifespan and user safety. These shortcomings not only degrade the user experience but also increase maintenance costs, necessitating the development of dedicated solutions to support this market segment. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a charging device for a shared massager storage device designed to be compatible with belt-type massagers.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A charging device for a shared massager storage device includes a housing. A storage box for holding a belt-type massager is retractably disposed within the housing. A battery is disposed below the storage box within the housing, and the battery's power is guaranteed by an external socket. A support plate is fixedly disposed at the bottom of the storage box. The support plate forms a support groove for placing the belt-type massager at the center of the storage box. A charging port for a charging cable to pass through is opened at the center of the bottom of the support groove. A charging cable is disposed between the battery and the charging port. The charging cable includes a charging head inserted into the charging port and a flexible wire for connecting the charging head and the battery.
[0006] The beneficial effects of this utility model are as follows: The support plate is fixedly installed at the bottom of the storage box, and its structural design enhances the load-bearing capacity of the support slot, preventing deformation or damage to the support plate when the massager is placed, thus extending the service life of the device; the support slot is located in the center of the storage box, making it easy for users to quickly locate and return the belt-type massager, reducing operational errors; the charging port is located in the center of the bottom of the support slot, further optimizing the return process, allowing users to align the charging head without additional adjustments, improving convenience; the flexible wire connects the charging head and the battery, and can flexibly bend or extend during the extension and retraction of the storage box, preventing the wire from breaking due to repeated stretching, ensuring the stability and reliability of the charging connection. In addition, the battery is powered by an external socket, ensuring continuous power supply, reducing the risk of charging interruption, and improving the availability of shared devices. As a preferred method, the flexible wire adopts a spiral spring wire structure, with multiple strands of fine copper wire twisted internally and covered with a silicone insulation layer externally. When the storage box extends and retracts, the wire naturally curls or extends due to its own elasticity, and the internal copper wire is evenly stressed, avoiding local stress concentration that could lead to breakage. As another preferred option, the support plate is integrally formed from high-strength aluminum alloy, and the wall of the support groove has an arc-shaped concave structure. When the massager is placed, the groove wall provides lateral support to prevent shaking or falling off, thus enhancing the overall load-bearing stability. These structural optimizations not only enhance functionality but also simplify the maintenance process, ensuring long-term reliable operation of the device.
[0007] Furthermore, a limiting head is provided between the charging head and the flexible wire, and several limiting plates are provided at intervals on the support plate. At the center of each of the several limiting plates, a limiting arc surface is provided to prevent the limiting head from moving and to provide a limiting torque to the limiting head at both ends of the axial direction.
[0008] Through the cooperation of the limiting head and the limiting plate, the limiting arc surface applies a limiting torque at both ends of the axial direction, effectively preventing the charging head from shifting in the charging port, ensuring that the charging contact point is always aligned, reducing the risk of charging failure or poor contact, and improving charging efficiency and device reliability. The design of the limiting arc surface provides uniform support force, preventing the charging head from loosening due to vibration or external forces, and extending the life of the charging cable. At the same time, multiple limiting plates spaced at intervals distribute the force, enhancing the overall structure's impact resistance. As a preferred embodiment, each limiting arc surface is a concave semi-circular groove, with a groove depth slightly smaller than the diameter of the limiting head. When the limiting head is engaged, the groove wall generates a radial constraint force through friction, while the axial end face forms a stop surface, providing a bidirectional limiting torque. As another preferred embodiment, the limiting head is made of elastic nylon material with a wear-resistant coating. After being inserted into the limiting arc surface, it absorbs impact through elastic deformation and generates a self-locking effect during the recovery process, preventing minor displacement. These structural details ensure the stability of the charging process and reduce maintenance requirements.
[0009] Furthermore, the support plate is also provided with a fixing plate, and each limiting plate has a first fastening hole on both sides. The fixing plate includes a connecting part on both sides and a limiting part located between the two connecting parts. The limiting part is provided with a limiting arc groove facing the limiting arc surface. The connecting part is provided with a second fastening hole corresponding to the position of the first fastening hole.
[0010] The limiting arc groove and the limiting arc surface work together to form a continuous guiding and fixing structure, effectively preventing axial or radial displacement of the charging head and improving positioning accuracy and charging stability. The fixing plate integrates the limiting plate through the connecting part and the limiting part, enhancing overall rigidity and reducing the risk of component loosening; the corresponding setting of the first and second fastening holes simplifies the assembly process and facilitates disassembly and maintenance. In addition, this structure disperses the stress on the limiting head, avoiding local wear and extending the component's lifespan. As a preferred embodiment, the fixing plate is made of stainless steel sheet by stamping, and the limiting arc groove on the limiting part is a U-shaped groove with a width slightly larger than the diameter of the limiting head, forming a closed annular guide surface with the limiting arc surface. When the charging head is inserted, it is automatically centered, and the fixing plate and the limiting plate are locked together by bolts passing through the fastening holes, generating a uniform clamping force. As another preferred embodiment, the connecting part is designed as an L-shaped bent structure with a length matching the spacing of the limiting plates, and the second fastening hole is a threaded hole. After the bolt is screwed in, the pre-tightening force ensures that the fixing plate and the support plate fit tightly together, preventing displacement caused by vibration. These implementation schemes enhance the fixation effect, ensuring that the charging device maintains high performance during frequent use.
[0011] Furthermore, the limiting head has a circular cross-section, and the outer diameter of its circular cross-section gradually increases from the end near the battery towards the charging port. The virtual circle formed between the limiting arc groove and several limiting arc surfaces is also circular, and the outer diameter of the virtual circle gradually increases from the end near the battery towards the charging port. The degree of increase in the outer diameter of the virtual circle is consistent with the degree of increase in the outer diameter of the circular cross-section of the limiting head.
[0012] The gradually increasing outer diameter design creates a conical fit between the limiting head and the virtual circle, enhancing the containment effect, preventing charging head misalignment, and providing a self-locking function to ensure automatic alignment and fixation of the charging head during insertion. The increasing outer diameter of the virtual circle matches the limiting head, optimizing the contact area, reducing frictional loss, and extending component lifespan. This structure also facilitates easy insertion and removal by the user, reducing operational force. Furthermore, the conical fit absorbs vibration and shock, improving the device's stability in dynamic environments. As the limiting head advances, the increasing diameter generates radial compressive force, enhancing fixation strength. As a preferred method, the limiting arc surface is machined with micro-textures to increase the coefficient of friction, forming a progressive locking mechanism axially with the increasing outer diameter to prevent accidental dislodgement. These structural optimizations improve the device's durability and user experience.
[0013] Further, heat dissipation grooves are symmetrically arranged at both ends of the charging port. Corresponding to the rear of the heat dissipation grooves, two clamping plates are symmetrically arranged on the supporting plate, and anti-detachment plates corresponding to the number of the clamping plates are arranged and clamped on the clamping plates. Each clamping plate is provided with a "soil"-shaped clamping groove. After the anti-detachment plate is clamped in the clamping groove, a gap is formed between the anti-detachment plate and the inner wall of the heat dissipation groove.
[0014] The heat dissipation grooves are located near the charging port, directly promoting air circulation, effectively improving the heat dissipation efficiency, and preventing the battery or charging cable from being damaged due to overheating; the anti-detachment plate is fixed through the clamping groove, forms a gap with the inner wall of the heat dissipation groove, blocks the soft belt of the belt-type massager from coming out, and ensures the safe use of the device. The symmetrical design balances the force and reduces the structural deformation; the gap allows heat to dissipate while blocking foreign objects, improving the reliability of the device. In addition, the "soil"-shaped clamping groove simplifies the installation and is convenient for quick maintenance or replacement. As a preferred method, the heat dissipation groove is a long strip-shaped opening, and the edge of the groove mouth is rounded. When air passes through, convection is formed to take away the accumulated heat; the anti-detachment plate is made of spring steel sheet. After being inserted into the "soil"-shaped groove, its bent part maintains a certain gap with the heat dissipation groove wall, and provides a clamping force through elastic deformation to prevent the belt from slipping in. As another preferred method, the clamping plate is welded to the back of the supporting plate. The "soil"-shaped groove includes a horizontal clamping groove and a vertical guiding groove. When the anti-detachment plate is inserted, it slides along the guiding groove to the clamping groove to be locked, forming a detachable connection, which is convenient for cleaning the inside of the heat dissipation groove. These structural details optimize the thermal management and protection performance. Description of the Drawings
[0015] Figure 1 It is an internal view of the outer shell of the embodiment of the present utility model;
[0016] Figure 2 It is an exploded view of the storage box of the embodiment of the present utility model;
[0017] Figure 3 It is a partial exploded view of the charging port of the embodiment of the present utility model;
[0018] Figure 4 It is a partial enlarged view of the charging port of the embodiment of the present utility model. Detailed Embodiment
[0019] An embodiment of the present utility model provides a charging device for a shared massager storage device as Figure 1-4As shown: The device includes an outer casing 1, which serves as the overall support structure and is made of conventional metal or plastic. Its internal space is used to accommodate other components. A storage box 2 is retractably installed inside the outer casing 1. The storage box 2 extends and retracts via a slide rail or spring mechanism, facilitating easy access for the user to the belt-type massager. Its centrally located position ensures convenient operation. A battery 3, a rechargeable lithium battery, is located below the storage box 2. It is connected to a power source via an external socket to maintain its charge. This socket interface is existing technology and is located on the side of the casing for easy insertion and removal. A support plate 4 is fixedly installed at the bottom of the storage box 2. The support plate 4 is made of reinforced steel plate or rigid plastic to improve overall load-bearing capacity and prevent deformation. A support groove 41 is formed in the center of the support plate 4. The shape of this groove matches the contour of the belt-type massager, allowing the user to quickly place and return the massager. A charging port 42 is located at the bottom center of the support groove 41 for the charging cable 5 to pass through.
[0020] The charging cable 5 includes a charging head 51 that is fitted into the charging port 42 and a flexible wire 52 that connects the charging head 51 to the battery 3. The flexible wire 52 is made of flexible rubber sheathed wire, which can maintain a stable connection when the storage box 2 is extended or retracted, and avoid breakage. A cylindrical limiting head 53 is provided between the charging head 51 and the flexible wire 52. Several limiting plates 43 are installed at intervals on the support plate 4. Each limiting plate 43 has a limiting arc surface 431 machined at its center. This arc surface is a semi-circular groove, which is used to accommodate the limiting head 53 and provide axial and radial limiting torque to prevent the charging head 51 from shifting in the charging port 42. A fixing plate 44 is also fixed on the support plate 4. The fixing plate 44 includes connecting parts 441 located on both sides and a limiting part 442 located in the middle. The limiting part 442 has a limiting arc groove 4421 facing the limiting arc surface 431. The limiting plate 43 has first fastening holes 432 on both sides, and the connecting part 441 has corresponding second fastening holes 4411. The two are fastened with bolts to ensure the structure is firm. The limiting arc groove 4421 and the limiting arc surface 431 cooperate to form a virtual circle, which surrounds the limiting head 53.
[0021] The cross-section of the limiting head 53 is circular, and its outer diameter gradually increases from the end close to the battery 3 towards the end of the charging port 42, forming a conical structure. The virtual circle formed by the limiting arc groove 4421 and the limiting arc surface 431 is also circular, and the degree of its increasing outer diameter is the same as that of the limiting head 53 to achieve tight wrapping and further prevent deviation. Heat dissipation grooves 45 are symmetrically provided at both ends of the charging port 42. The heat dissipation grooves 45 are long strip through holes, which can effectively improve the heat dissipation efficiency during the charging process. Two clamping plates 46 are symmetrically fixed corresponding to the rear of the heat dissipation grooves 45 on the supporting plate 4. Each clamping plate 46 is processed with a clamping groove 461 in the shape of "soil". The anti-detachment plate 47 is clamped in the clamping groove 461. A gap is formed between the anti-detachment plate 47 and the inner wall of the heat dissipation groove 45. This gap allows air to flow, and at the same time prevents the soft belt of the belt-type massager from accidentally slipping out of the heat dissipation groove 45.
[0022] The working principle of this charging device is as follows: When the user puts the belt-type massager into the carrying groove 41 of the storage box 2, the charging interface of the massager is automatically aligned with the charging port 42, and the charging head 51 is inserted into the interface for charging. During the telescopic process of the storage box 2, the flexible wire 52 bends accordingly to avoid being pulled off; the limiting head 53 is fixed by the limiting arc surface 431 and the limiting arc groove 4421 to prevent the charging head 51 from deviating and ensure stable connection. The battery 3 continuously supplies power, and the heat dissipation grooves 45 dissipate heat through air convection. While providing a gap for heat dissipation, the anti-detachment plate 47 restricts the position of the belt. The entire device maintains the battery power through an external socket, realizing convenient charging and storage of the shared massager.
[0023] The above embodiments are only one of the preferred specific embodiments of the present invention. The general changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are included in the protection scope of the present invention.
Claims
1. A charging device for a shared massager storage device, comprising a housing, wherein a storage box for holding a belt-type massager is retractably disposed within the housing, characterized in that: A battery is provided below the storage box corresponding to the outer shell body, and the power of the battery is ensured by an external socket. A supporting plate is fixedly provided at the bottom of the storage box. The supporting plate forms a bearing groove for placing the belt-type massager at the center of the storage box. A charging port for the charging wire to pass through is opened at the center of the bottom of the bearing groove; A charging wire is provided between the battery and the charging port. The charging wire includes a charging head clamped in the charging port and a flexible wire for connecting the charging head and the battery.
2. The charging device for a shared massager storage device according to claim 1, characterized in that: A limiting head is provided between the charging head and the flexible wire. A plurality of limiting plates are arranged at intervals on the supporting plate. Limiting arc surfaces for the limiting head to prevent and provide a limiting torque at both axial ends are provided at the centers of the plurality of limiting plates.
3. The charging device for a shared massager storage device according to claim 2, characterized in that: A fixing plate is further provided on the supporting plate. First fastening holes are provided on both sides of each limiting plate. The fixing plate includes connecting portions provided on both sides thereof and a limiting portion located between the two connecting portions. A limiting arc groove is provided on the limiting portion towards the direction of the limiting arc surface. Second fastening holes are provided on the connecting portions corresponding to the positions of the first fastening holes.
4. The charging device for a shared massager storage device according to claim 3, characterized in that: The cross-section of the limiting head is circular, and the outer diameter of the circular cross-section of the limiting head gradually increases from the end close to the battery towards the end of the charging port; The virtual circle formed between the limiting arc groove and the plurality of limiting arc surfaces is also circular, and the outer diameter of the circular cross-section of the virtual circle gradually increases from the end close to the battery towards the end of the charging port. The degree of increase in the outer diameter of the virtual circle is consistent with the degree of increase in the outer diameter of the circular cross-section of the limiting head.
5. The charging device for a shared massager storage device according to claim 1, characterized in that: Heat dissipation grooves are symmetrically provided at both ends of the charging port. Two clamping plates are symmetrically provided on the supporting plate corresponding to the rear of the heat dissipation grooves, and anti-detachment plates corresponding to the number of clamping plates and clamped on the clamping plates are provided. A "soil"-shaped clamping groove is provided on each clamping plate. A gap is formed between the inner wall of the heat dissipation groove after the anti-detachment plate is clamped in the clamping groove.