Multipurpose socket

Abstract

The utility model discloses a multipurpose socket, including socket panel, USB charging port, multi -interface charging wire and roll back mechanism. Roll back mechanism includes rear casing, winding mechanism shell, winding disc, sliding slot, torsional spring, dog, auxiliary clamp block and spacing piece. Winding disc is vertically arranged, and the outer periphery is equipped with sliding slot, and multi -interface charging wire is wound its outer periphery;Torsional spring provides roll back elasticity, and dog and sliding slot cooperate and realize cable telescopic limit;Spacing piece is rectangular structure, prevents axial swing. Socket panel is equipped with power control switch, can disconnect USB charging port and charging wire power, prevents standby energy consumption and potential safety hazard. The utility model discloses compact structure, safe operation, energy -conserving reliable.

Description

Technical Field

[0001] This utility model relates to the field of power socket technology, and more specifically to a multi-purpose socket. Background Technology

[0002] With the continuous growth in the number of smart electronic devices, the demand for multi-interface, multi-functional sockets in home and office environments is constantly increasing. Although there are many types of existing socket products, their core function is still mainly to provide power output, and their structural forms are relatively simple, making it difficult to meet the convenient needs of using multiple devices simultaneously. Especially with the widespread use of mobile terminals, tablets, and wearable devices, users usually need to carry multiple data cables to achieve charging or data transfer, which not only takes up space but also easily leads to problems such as cable tangling, loss, and aging.

[0003] While existing multi-functional sockets may have USB output ports or Type-C interfaces on their panels, their interface types are limited, often only compatible with a subset of devices, lacking versatility. Furthermore, during use, exposed cables and the inability to effectively store them often result in a cluttered environment around the socket, increasing the risk of cable bending, conductor breakage, or loose plugs, shortening the lifespan of the cables and impacting the cleanliness and safety of the home environment.

[0004] To solve the problem of tangled cables, some charging devices or independent cable management boxes with rewind mechanisms have appeared on the market, but these structures generally have the following drawbacks:

[0005] 1. Fragmented structure, inconvenient to carry: Most automatic rewinders are separate from the socket, requiring users to carry them separately, which takes up space and is inconvenient to move.

[0006] 2. Complex mechanical structure: Existing rewinding mechanisms mostly use ratchet locking, gear transmission or double spring tension system, which have complex manufacturing processes, high failure rate and high cost.

[0007] 3. Poor stability: Some rewinding structures are prone to spring fatigue, jamming failure, or unsmooth rewinding during long-term use, which seriously affects the user experience.

[0008] 4. Insufficient safety: Some products have poor structural sealing, with exposed metal parts or frictional heating, posing risks of electric shock and mechanical jamming.

[0009] 5. Low adaptability: Traditional rewinding devices mostly have a single interface (such as Micro-USB or Lightning), which makes it difficult to meet the unified management of multi-port electronic devices.

[0010] Furthermore, existing automatic rewinding socket structures typically employ a horizontally arranged cable reel, meaning the reel is installed parallel to the socket panel. While this structure is convenient for design, it significantly increases the socket's thickness, affecting its appearance and installation method, and is unsuitable for recessed or wall-mounted applications. Additionally, because the horizontal cable reel is susceptible to gravity during rewinding, uneven cable recovery and frequent jamming occur, resulting in insufficient durability and stability.

[0011] To address the aforementioned issues, some research directions have attempted to introduce longitudinal winding structures or elastic limiting devices to improve recycling performance. However, most existing solutions rely on complex gear sets or ratchet mechanisms to control recycling and limiting, resulting in bulky structures, difficult assembly, and hindering large-scale production. Furthermore, the lack of reliable anti-sway support during the winding reel's rotation means that axial sway can lead to cable entanglement or claw dislocation, severely impacting recycling reliability. Utility Model Content

[0012] The present invention aims to provide a multi-purpose socket. By setting an automatic rewinding mechanism inside the rear housing of the socket, the socket can automatically extend and retract and store multi-port charging cables, making the socket compatible with a variety of charging devices while maintaining a neat overall appearance.

[0013] To achieve the above objectives, this utility model provides the following technical solution:

[0014] A multi-purpose socket, including a socket panel, a USB charging port, a multi-interface charging cable, and a rewinding mechanism located on the back of the socket panel;

[0015] The rewinding mechanism includes a rear housing and a winding mechanism housing. The winding mechanism housing is a longitudinally convex semi-circular structure, and its interior is provided with a winding reel, a sliding groove, a torsion spring, a claw, an auxiliary locking block, and a limiting component.

[0016] The reel is arranged vertically and has a groove on its outer periphery. The groove is used to guide and restrict the movement path of the multi-interface charging cable.

[0017] The torsion spring is located at the center of the winding spool to provide rewinding force;

[0018] The claw is a cam structure, with its end embedded in a sliding groove. By deflecting and cooperating with the sliding groove, it realizes the limiting and disengaging action of the multi-interface charging cable.

[0019] The auxiliary locking block is installed on the outer edge of the winding reel to limit the rotation angle of the winding reel;

[0020] The limiting component is disposed on the inner wall of the winding mechanism housing and is used to limit the axial position of the winding reel;

[0021] The multi-interface charging cable is wound around the outer periphery of the reel, with its front end leading out through the socket panel and its end integrating multiple charging interfaces.

[0022] Preferably, the outer shell of the winding mechanism and the rear shell are integrally formed, and the outer surface of the outer shell of the winding mechanism is provided with ventilation and heat dissipation grooves.

[0023] Preferably, the claw and the slide groove are engaged in the following manner: one side of the claw forms an arc-shaped contact surface, and when the user pulls out the multi-port charging cable, the claw and the slide groove are locked together; when the user pulls it again, the claw deflects and disengages from the slide groove, and the cable reel automatically retracts under the elastic force of the torsion spring.

[0024] Preferably, the limiting member is a rectangular structure and is installed on the inner wall of the winding mechanism housing to prevent the winding reel from axially shaking during operation.

[0025] Preferably, the front end of the multi-interface charging cable is provided with a cross-shaped interface structure, integrating Type-C, Lightning and Micro-USB plugs.

[0026] Preferably, one end of the torsion spring is fixedly connected to the winding reel, and the other end is fixedly connected to the housing of the winding mechanism, so as to realize the elastic reset of the winding reel.

[0027] Preferably, the USB charging port is electrically connected to the power module inside the socket panel, and the internal wires of the multi-interface charging cable are electrically connected to the USB charging port after being wound on a coil, thereby achieving unified power supply.

[0028] Preferably, a power control switch is provided on the lower right side of the socket panel. The power control switch is electrically connected to the power input terminal of the USB charging port and the multi-interface charging cable, and is used to control the power supply on and off.

[0029] Compared with the prior art, the present invention has the following significant advantages:

[0030] 1. High degree of functional integration: Power output, USB charging and automatic rewind mechanism are integrated within a limited volume to achieve a unified socket.

[0031] 2. Simple and natural operation: The mechanical cooperation between the claw and the slide rail enables automatic extension and retraction control without buttons.

[0032] 3. Strong compatibility: The multi-interface charging cable is compatible with mainstream electronic devices, meeting the charging needs of various scenarios.

[0033] 4. High safety and reliability: The rectangular limit component effectively prevents axial sway and ensures stable operation of the winding reel; the energy storage of the torsion spring is controlled, eliminating the risk of cable flying off the reel.

[0034] 5. Neat and beautiful appearance: The data cable can be completely stored inside the casing, avoiding tangling and dust contamination.

[0035] 6. Controllable production costs: The parts have simple structures and the molds are easy to process, making them suitable for large-scale injection molding production.

[0036] In conclusion, the multi-purpose socket of this utility model is not only reasonably structured and practically functional, but also has obvious innovative features and promotional value, which can effectively improve users' charging experience and home tidiness. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0038] Figure 1 This is a front structural diagram of the multifunctional socket of this utility model;

[0039] Figure 2 This is a three-dimensional structural diagram of the back of the multifunctional socket of this utility model;

[0040] Figure 3 This is an exploded view of the internal rewinding mechanism of the multifunctional socket of this utility model.

[0041] In the attached diagram: 1-Socket panel; 101-Rear housing; 102-Cable winding mechanism housing; 2-USB charging port; 3-Multi-interface charging cable; 301-Cable winding reel; 302-Slide groove; 303-Torsion spring; 304-Claw; 305-Auxiliary block; 306-Limiting component; 4-Power control switch. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] Example 1

[0044] like Figures 1 to 3 As shown, the multi-purpose socket of this utility model mainly includes a socket panel 1, a USB charging port 2, a multi-interface charging cable 3, and a rewinding mechanism located on the back of the socket panel 1. The overall functional design of the device takes into account both the charging needs of traditional power sockets and modern mobile devices, integrating multiple interfaces and an automatic cable rewinding mechanism into one unit.

[0045] The socket panel 1 is a rectangular flat panel made of high-temperature resistant and flame-retardant engineering plastic. Multiple functional areas are located on the front of the panel. The upper part is the cable exit area for the multi-interface charging cable 3, the middle part has a standard three-prong power socket, and the lower part has a USB charging port 2. Reasonable spacing is maintained between the functional modules to avoid interference during use.

[0046] USB charging port 2 is electrically connected to the internal power module of the socket, providing a stable DC output voltage for the multi-interface charging cable 3. This structure allows users to directly charge electronic devices via the USB port or use the multi-interface charging cable 3 for quick connection and automatic retraction.

[0047] A power control switch 4 is located on the lower right side of the socket panel 1. This switch is electrically connected to the power input terminals of the USB charging port 2 and the multi-interface charging cable 3. When the user turns off switch 4, the power supply circuit of the USB charging port 2 and the multi-interface charging cable 3 is cut off, putting them in a power-off state, thus avoiding standby power consumption or potential safety hazards caused by continuous power supply when not in use. When the user turns on switch 4, the USB charging port 2 and the multi-interface charging cable 3 are restored to power and can charge normally. The switch 4 can be a mechanical toggle type or a touch type, with an external protective frame to prevent accidental activation. Through this design, users can independently control the on / off of the charging circuit as needed, improving safety and energy saving.

[0048] like Figure 2 As shown, the back of the socket panel 1 has a rear housing 101. The rear housing 101 is made entirely of flame-retardant ABS material, and its interior forms a space for installing circuit components and a cable winding mechanism. A cable winding mechanism housing 102 is fixedly connected to its right side. The housing 102 is a longitudinally convex semi-circular cavity structure, and its interior forms an independent rewinding space for accommodating the cable reel and its supporting mechanism. This structure ensures both overall socket thickness control and effective separation of the electrical and mechanical cable winding components, preventing mutual interference.

[0049] The winding mechanism housing 102 is fixed to the rear housing 101 by a combination of clips and screws. Multiple ventilation grooves are provided on the outer surface of the housing 102 to facilitate airflow and improve safety and stability during use. Furthermore, the inner wall of the housing is provided with mounting grooves and guide ribs for precise positioning of internal components, such as the winding reel 301, torsion spring 303, and limiting member 306.

[0050] like Figure 3 As shown, the winding reel 301 is a longitudinally arranged disc structure, injection molded from polyoxymethylene (POM) material, which has high wear resistance and strength. The winding reel 301 is coaxially connected to the torsion spring 303 via a central shaft, and its outer edge has a circumferential groove 302.

[0051] The multi-interface charging cable 3 is wound around the outer periphery of the reel 301, with the cable exiting through the cable outlet on the front side of the reel mechanism housing 102 and extending through the socket panel 1 for the user to pull. The slide groove 302 not only limits the running path of the charging cable but also works with the claw 304 to achieve locking and unlocking functions. The inner wall of the slide groove 302 is a smooth arc-shaped surface, which reduces friction and improves the smoothness of cable winding and unwinding.

[0052] The charging cable 3 features a flat composite wire design, offering excellent torsion resistance and flexibility. Its front end is fitted with an integrated multi-interface charging head, including Lightning, Type-C, and Micro-USB interfaces arranged in a cross shape. Users can select the appropriate interface based on their device's port type, achieving a "multi-head integrated, automatic storage" function.

[0053] The torsion spring 303 is a metal elastic element installed at the central shaft of the winding reel 301. One end of it is fixed to the winding reel 301 by a slot, and the other end is embedded in the central fixing hole of the winding mechanism housing 102.

[0054] When the user pulls out the multi-port charging cable 3, the reel 301 rotates clockwise, and the torsion spring 303 is tightened and stores elastic energy; when the user releases the pulling force or triggers the retraction action, the torsion spring 303 releases its elastic force, causing the reel 301 to rotate in the opposite direction, thereby driving the charging cable 3 to automatically rewind back inside.

[0055] To ensure a smooth recovery action, the design torque of the torsion spring 303 has been optimized through experiments, providing a constant pull-back force within a range of 60cm to 120cm of the pulled-out line length, while avoiding damage caused by instantaneous rebound.

[0056] The chuck 304 is installed inside the housing 102 of the winding mechanism, corresponding to the outer part of the slide groove 302. The chuck is a cam-type micro-structure, made of high-strength polycarbonate (PC), and its arc-shaped end is embedded in the inner wall of the slide groove 302.

[0057] The chuck 304 is fixed to the outer casing via an eccentric shaft, and its rotation angle is determined by its own structure and the shape of the slide groove. When the user pulls out the multi-port charging cable 3, the reel 301 drives the slide groove 302 to rotate. The friction between the slide groove and the chuck creates slight resistance, causing the chuck and the slide groove to engage at a specific angle, forming a limiting state. At this time, the reel 301 is prevented from continuing to rotate, and the cable remains at the specified length.

[0058] When the user gently pulls the charging cable 3 again, the slide 302 undergoes a slight displacement relative to the claw 304. The claw slides along the cam surface and disengages from the slide 304. The cable reel 301 begins to rotate under the action of the torsion spring 303, causing the cable to retract automatically. The entire process is smooth and natural, requiring no additional buttons or mechanisms.

[0059] The auxiliary locking block 305 is located on the outer edge of the reel 301 to prevent the reel 301 from rotating excessively. By cooperating with the shoulder structure on the inner wall of the housing, the auxiliary locking block 305 limits the maximum rotation angle of the reel 301, so that the charging cable 3 maintains uniform tension when pulled out or retracted, preventing slippage or breakage.

[0060] A limiting member 306, rectangular in shape, is disposed on the inner wall of the winding mechanism housing 102. The limiting member 306 abuts against the bearing portion of the winding reel 301, forming an axial limit. Through the planar contact between the rectangular surface and the edge of the winding reel, the wobbling of the winding reel 301 during operation is effectively suppressed, ensuring stable meshing between the torsion spring 303 and the slide groove 302, and improving the overall durability and recovery accuracy of the mechanism.

[0061] In actual use, the user pulls out the multi-port charging cable 3 from the front end of the socket panel 1. The charging cable 3 extends as the cable reel 301 rotates, and the torsion spring 303 stores energy during this process.

[0062] When the user pulls out the cable to the desired length, the pawl 304 automatically engages with the slide groove 302 to lock, stopping the reel 301 from rotating and maintaining the current cable length.

[0063] When the user gently pulls the charging cable 3 again, the claw 304 disengages, and the reel 301 rotates in the opposite direction under the action of the torsion spring 303, smoothly retracting the charging cable 3.

[0064] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-purpose socket, characterized in that, It includes a socket panel (1), a USB charging port (2), a multi-interface charging cable (3), and a rewinding mechanism located on the back of the socket panel (1); The rewinding mechanism includes a rear housing (101) and a winding mechanism housing (102). The winding mechanism housing (102) is a longitudinally convex semi-circular structure, and is provided with a winding reel (301), a slide groove (302), a torsion spring (303), a claw (304), an auxiliary locking block (305), and a limiting member (306). The reel (301) is arranged vertically and has a groove (302) on its outer periphery. The groove (302) is used to guide and restrict the movement path of the multi-interface charging cable (3). The torsion spring (303) is located at the center of the winding spool (301) to provide rewinding force; The claw (304) is a cam structure, and its end is embedded in the slide groove (302). By deflecting and cooperating with the slide groove (302), the limiting and disengaging actions of the multi-interface charging cable (3) are realized. The auxiliary block (305) is installed on the outer edge of the winding reel (301) to limit the rotation angle of the winding reel (301); The limiting member (306) is disposed on the inner wall of the winding mechanism housing (102) and is used to limit the axial position of the winding reel (301); The multi-interface charging cable (3) is wound around the outer periphery of the reel (301), with its front end led out through the socket panel (1) and its end integrating multiple charging interfaces.

2. The multi-purpose socket according to claim 1, characterized in that, The winding mechanism housing (102) and the rear housing (101) are integrally formed, and the outer surface of the winding mechanism housing (102) is provided with ventilation and heat dissipation grooves.

3. The multi-purpose socket according to claim 1, characterized in that, The engagement method of the claw (304) and the slide (302) is as follows: one side of the claw (304) forms an arc-shaped contact surface. When the user pulls out the multi-interface charging cable (3), the claw (304) and the slide (302) are locked together. When the user pulls it again, the claw (304) deflects and disengages from the slide (302), and the reel (301) is automatically retracted under the elastic force of the torsion spring (303).

4. The multi-purpose socket according to claim 1, characterized in that, The limiting member (306) is a rectangular structure and is installed on the inner wall of the winding mechanism housing (102) to prevent the winding reel (301) from axially shaking during operation.

5. The multi-purpose socket according to claim 1, characterized in that, The multi-interface charging cable (3) has a cross-shaped interface structure at the front end, integrating Type-C, Lightning and Micro-USB plugs.

6. The multi-purpose socket according to claim 1, characterized in that, One end of the torsion spring (303) is fixedly connected to the winding reel (301), and the other end is fixedly connected to the winding mechanism housing (102).

7. The multi-purpose socket according to claim 1, characterized in that, The USB charging port (2) is electrically connected to the power module inside the socket panel (1), and the internal wires of the multi-interface charging cable (3) are wound around the cable reel (301) and then electrically connected to the USB charging port (2).

8. The multi-purpose socket according to claim 1, characterized in that, A power control switch (4) is provided on the lower right side of the socket panel. The power control switch (4) is electrically connected to the power input terminal of the USB charging port (2) and the multi-interface charging cable (3) to control the power supply on and off.

Images