A connecting conduit retractable socket
Patent Information
- Application Number
- CN202522202235.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2025-10-16
- Filing Date
- 2025-10-17
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-17
AI Technical Summary
Existing rigid connecting conduits are difficult to extend and retract, and are prone to wire tangling, affecting ease of use and safety.
The system employs at least two slidable conduits. By setting a long strip of metal on the first conduit as an electrical connection track and setting a metal probe on the second conduit as a brush, the system achieves the extension and retraction function of the conduits and forms an uninterrupted electrical path through sliding contact.
It avoids the problem of traditional wires breaking due to repeated bending, improves the product's lifespan and reliability, has a compact structure, and allows users to freely adjust the socket distance, enhancing ease of use and safety.
Smart Images
Figure CN224935151U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sockets, specifically to a socket with a retractable connecting conduit. Background Technology
[0002] A portable socket is a common household or commercial appliance, typically consisting of a socket body, a plug, and an electrical connector that connects the socket body and the plug. Generally, this electrical connector uses a flexible wire, which is flexible, low-cost, lightweight, and small in size. However, in some applications with high traffic and high safety requirements, and when a fixed route is needed for easy management and a neat appearance, a rigid connecting conduit is usually used as the electrical connector between the socket body and the plug.
[0003] However, current rigid connecting conduits are difficult to extend or retract, which is inconvenient in some usage scenarios. Some extendable connecting conduits have redundant wire lengths inside, resulting in poor performance and a tendency for wire tangling. Therefore, there is a need for a socket with an extendable connecting conduit that eliminates the problem of wire tangling.
[0004] In view of the above, this application is hereby submitted. Utility Model Content
[0005] This invention provides a retractable socket for connecting conduits to solve at least one of the aforementioned technical problems.
[0006] To address the aforementioned problems, as one aspect of this utility model, a retractable socket with a connecting conduit includes a socket body and a plug, wherein the socket body and the plug are electrically connected via a connecting conduit; the connecting conduit includes at least a first conduit and a second conduit, the first conduit and the second conduit being slidably engaged along their length direction, the first conduit having a first elongated metal strip along its length direction on the side of its length near the second conduit, the second conduit having a first metal probe that maintains slidable contact with the first elongated metal strip on the side of its length near the first conduit, and the second conduit having an electrical connection line extending along its length direction inside.
[0007] Preferably, the first catheter and the second catheter are upper and lower sliding rail structures, and the sliding rails are fitted to the outer side wall of the first catheter or the second catheter; the first elongated metal sheet and the first metal probe are wrapped inside by the upper and lower sliding rail structure.
[0008] Preferably, the first conduit and the second conduit are nested, with the second conduit nested inside the first conduit. A first elongated metal strip is disposed on one inner wall of the first conduit, and a guide rail structure adapted to the second conduit is provided on the other inner wall of the first conduit.
[0009] Preferably, the first elongated metal sheet includes a positive electrode metal sheet, a negative electrode metal sheet, and a grounding metal sheet; the first elongated metal sheet is made of copper.
[0010] Preferably, it also includes a third conduit, which can slide and engage with the first or second conduit along its length, and is electrically connected to the first conduit or the second conduit via a second elongated metal strip and a second metal probe.
[0011] Preferably, one end of the first conduit is connected to the socket body, and one end of the second conduit is connected to the plug.
[0012] Preferably, the plug includes a head base, a rotating assembly, and a metal pin, wherein the rotating assembly is mounted on the head base and the metal pin is disposed on the rotating assembly.
[0013] Preferably, the rotating assembly includes a rotating base and a locking member, the locking member being used to limit the rotation angle of the rotating base.
[0014] Preferably, the metal pins are multiple and integrated on a pin holder, the pin holder is fixedly connected to the rotating seat, and each metal pin is electrically connected to a first elongated metal sheet.
[0015] Preferably, the plug further includes a conductive plate, different areas of which are electrically connected to different first elongated metal strips, and the metal pins rotate within corresponding areas of the conductive plate.
[0016] This invention replaces a fixed-length connecting conduit with at least two mutually sliding conduits, changing the overall length through physical stretching and compression of the two conduits. A long strip of metal serves as an electrical connection track on the first conduit, and a metal probe acts as a brush on the second conduit. As the conduit extends or retracts, the probe continuously slides on the metal strip, forming an uninterrupted electrical path. This electrical connection method using a long strip of metal and a metal probe avoids the problem of metal wires breaking due to repeated bending in traditional wires, thus improving product lifespan and reliability. By integrating the electrical connection function with the mechanical extension / retraction function into the conduit itself, the structure is more compact, allowing users to freely extend or shorten the socket distance as needed, greatly enhancing ease of use. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of a retractable socket for connecting conduits according to an embodiment of this utility model;
[0018] Figure 2 yes Figure 1 A schematic diagram of the connecting conduit in its extended state;
[0019] Figure 3 yes Figure 2 A structural diagram from a second perspective;
[0020] Figure 4 yes Figure 2 A schematic diagram of the structure of the hidden catheter cap;
[0021] Figure 5 yes Figure 2 A schematic diagram of the structure of the catheter cap;
[0022] Figure 6 yes Figure 2 A schematic diagram of the structure of the hidden first catheter;
[0023] Figure 7 yes Figure 6 A schematic diagram of the hidden second catheter structure;
[0024] Figure 8 yes Figure 1 A schematic diagram of the plug structure.
[0025] The markings in the diagram are: 1. Socket body; 2. Plug; 21. Head base; 211. First protrusion; 22. Rotating seat; 221. Second protrusion; 24. Pin socket; 25. Conductive plate; 3. Connecting conduit; 31. First conduit; 311. Conduit housing; 312. Conduit cover; 313. First guide rail; 32. Second conduit; 321. First guide rail groove; 322. Fixing plate; 33. First elongated metal strip; 34. First metal probe. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this 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 this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] Please refer to Figures 1 to 8A retractable socket with a connecting conduit includes a socket body 1 and a plug 2, which are electrically connected via a connecting conduit 3. The connecting conduit 3 includes at least a first conduit 31 and a second conduit 32, which are slidably engaged along their length. A first elongated metal strip 33 is provided along the length of the first conduit 31 near the second conduit 32, and a first metal probe 34 is provided along the length of the second conduit 32 near the first conduit 31, maintaining sliding contact with the first elongated metal strip 33. An electrical connection line extending along the length of the second conduit 32 is provided inside the second conduit 32. The electrical connection line inside the second conduit 32 can be a wire, a metal strip, or a printed circuit, and is not limited thereto.
[0028] By replacing the fixed-length connecting conduit 3 with at least two mutually sliding conduits, the overall length is changed through physical stretching and compression of the two conduits. A first elongated metal strip 33 is set on the first conduit 31 as an electrical connection track, and a first metal probe 34 is set on the second conduit 32 as a brush. When the conduit extends or retracts, the first metal probe 34 always slides on the first elongated metal strip 33, forming an uninterrupted electrical path. The electrical connection method using the first elongated metal strip 33 and the first metal probe 34 avoids the problem of metal wires inside traditional wires breaking due to repeated bending, thus improving the product's service life and reliability. By integrating the electrical connection function with the mechanical extension function into the conduit itself, the structure is more compact, and users can freely stretch or shorten the distance of the socket as needed, greatly improving ease of use.
[0029] There are various sliding fit methods for the first conduit 31 and the second conduit 32, such as upper and lower sliding rail structure or nested telescopic tube structure.
[0030] In a preferred embodiment, the first conduit 31 and the second conduit 32 are upper and lower sliding rail structures, and the sliding rails are fitted to the outer side walls of the first conduit 31 or the second conduit 32. The upper and lower sliding rail structure is used as a mechanical fitting method. This structure has mature high precision and high stability characteristics; placing the sliding rail structure on the outer side wall of the conduit can fully utilize the external space of the conduit, leaving space for the internal electrical components and providing sealed protection for the internal circuitry.
[0031] Specifically, the first elongated metal strip 33 and the first metal probe 34 are enclosed inside by the upper and lower sliding rail structure. The upper and lower sliding rail structure itself forms a protective enclosure, enclosing the electrical components, including the first elongated metal strip 33 and the first metal probe 34, within the inner space of the conduit. This effectively prevents accidental contact with live parts by the user, avoiding the risk of electric shock. It also provides dust and foreign object protection, ensuring the stability of the sliding electrical contact.
[0032] Furthermore, the first conduit 31 is provided with a first groove corresponding to each first elongated metal sheet 33, and flexible sealing strips are provided on both sides of the bottom opening of the first groove. Under normal conditions, the flexible sealing strips will seal the first groove and protect the first elongated metal sheet 33 inside. When the first conduit 31 and the second conduit 32 are extended relative to each other, the first metal probe 34 slides between the left and right flexible sealing strips to maintain contact with the first elongated metal sheet 33.
[0033] Please refer to Figures 2 to 5 In this embodiment, the first conduit 31 and the second conduit 32 are nested, with the second conduit 32 nested inside the first conduit 31. A first elongated metal strip 33 is disposed on one inner wall of the first conduit 31, and a guide rail structure adapted to the second conduit 32 is provided on the other inner wall of the first conduit 31. This nested structure, along with the guide rail structure (such as guide grooves or protrusions) on the other inner wall of the first conduit 31, provides precise guidance for the axial sliding of the second conduit 32, restricting its lateral freedom and ensuring that it moves only linearly along the length of the conduit. Simultaneously, the first elongated metal strip 33 on one inner wall of the first conduit 31 maintains sliding contact with the first metal probe 34 of the second conduit 32. Through the constraints of the nested structure and the guidance of the guide rail, stable contact between the first elongated metal strip 33 and the first metal probe 34 is maintained, achieving continuous transmission of electrical signals.
[0034] Furthermore, in this embodiment, the first conduit 31 includes a detachably connected conduit housing 311 and a conduit cover 312. The bottom of the conduit housing 311 is provided with multiple first elongated metal strips 33. The inner side of the conduit cover 312 is provided with a first guide rail 313 that slides with the second conduit 32. The second conduit 32 is provided with a corresponding first guide rail groove 321.
[0035] In a further preferred embodiment, a third conduit is also included. The third conduit can slide and engage with the first conduit 31 or the second conduit 32 along its length, and is electrically connected to the second elongated metal strip and the second metal probe. The third conduit can be positioned below the second conduit 32, employing an upper and lower sliding rail structure. Alternatively, a nested telescopic tube structure can be used to form a three-stage telescopic tube.
[0036] A third conduit is added, forming a multi-stage telescopic structure with the existing conduit. Each stage can extend, thus significantly increasing the total extension length with only a slight increase in storage volume. This enables the product to meet power supply needs over longer distances, broadening its applicability.
[0037] In other preferred embodiments, a fourth and fifth conduit may be included, with the conduits slidingly connected sequentially and electrically connected via a third elongated metal strip and a third metal probe, as well as a fourth elongated metal strip and a fourth metal probe. In products with more than four conduits that can extend or retract, an upper and lower sliding rail structure is preferably used between the conduits.
[0038] In other preferred embodiments, the number of catheters can be even greater.
[0039] In this embodiment, the first elongated metal strip 33 includes a positive electrode metal strip, a negative electrode metal strip, and a grounding metal strip; the first elongated metal strip 33 is made of copper. Three independent first elongated metal strips 33 are provided, corresponding to the positive, negative, and grounding electrodes respectively, achieving polarity isolation and ensuring safety and compliance. Using copper, a metal strip with excellent conductivity, as the material results in low resistance and high current carrying capacity. Copper can withstand greater operating current, reducing heat generation and ensuring the safe use of high-power electrical equipment; it also achieves a complete electrical connection, meeting the safety requirement that sockets must have a grounding electrode.
[0040] Please refer to Figure 8 In this embodiment, the plug 2 includes a head base 21, a rotating assembly, and a metal pin. The rotating assembly is mounted on the head base 21, and the metal pin is disposed on the rotating assembly. Introducing the rotating assembly into the plug 2 allows the metal pin portion to rotate relative to the head base 21. Users do not need to twist the entire conduit and socket body 1; they only need to rotate the plug 2 portion to adjust the pin direction, easily accommodating vertical or horizontal sockets and greatly improving the user experience.
[0041] In this embodiment, one end of the first conduit 31 is connected to the socket body 1, and one end of the second conduit 32 is connected to the plug 2. The shell of the second conduit extends outward to form the head base 21 of the plug 2, which is integrally injection molded with the shell of the second conduit. By extending the head base 21 from the shell of the second conduit and mounting the rotating assembly of the plug 2 on the head base 21, the stress point of the plug 2 is effectively transferred from the conduit interface and distributed to a more robust internal structure of the conduit. This significantly enhances the mechanical strength of the connection between the plug 2 and the conduit, preventing this point from becoming a stress concentration point and causing breakage, thus improving the product's durability.
[0042] Furthermore, the rotating assembly includes a rotating base 22 and a locking member, the locking member being used to limit the rotation angle of the rotating base 22. The rotation angle of the rotating base 22 is physically limited by a locking member, such as a limiting post in conjunction with a limiting groove. Limiting the rotation angle within a safe range, such as 180° or 120°, effectively prevents excessive rotation from causing twisting and damage to the internal conductive circuitry.
[0043] For further details, please refer to... Figure 7 The second conduit 32 also extends to a fixing plate 322, the end of which is annular. The rotating seat 22 of the plug 2 is rotatably connected to the annular end of the fixing plate 322. This makes the rotation of the rotating seat 22 more stable.
[0044] Please refer to Figure 8 The locking component includes a first protrusion 211 disposed inside the head base 21 and two second protrusions 221 disposed outside the rotating seat 22. When rotated to a predetermined angle, the first protrusion 211 and the second protrusion 221 abut against each other and lock together to prevent further rotation.
[0045] Furthermore, the outer side of the rotating seat 22 is provided with a plurality of meshing teeth, which form a damping engagement with the first protrusion 211. The first protrusion 211 provides a certain resistance to stabilize the rotation angle of the rotating seat 22 when it rotates. When the rotational force is greater, the first protrusion 211 will disengage from the current meshing tooth and enter the next meshing tooth, providing a rotational feel and stabilizing the angle.
[0046] In a preferred embodiment, multiple metal pins are integrated onto a pin holder 24, which is fixedly connected to the rotating base 22. Each metal pin is electrically connected to a first elongated metal strip 33. Multiple metal pins are first fixedly integrated onto a pin holder 24, and then the pin holder 24 is mounted as a whole onto the rotating base 22. This ensures that all pins rotate synchronously as a whole, maintaining the correct relative position and polarity. The modular design simplifies the manufacturing process and assembly flow, and improves reliability.
[0047] Furthermore, the plug 2 also includes a conductive plate 25, different areas of which are electrically connected to different first elongated metal strips 33, and the metal pins rotate within corresponding areas of the conductive plate 25. A fixed conductive plate 25 is used as the transfer medium. Different areas of the conductive plate 25 remain fixedly connected to the first elongated metal strips 33 of different polarities from the conduit. The rotating metal pins slide in contact within the corresponding annular area of the conductive plate 25. This fundamentally solves the problem of wire entanglement during rotation, making the structure more durable and allowing the plug 2 to rotate freely and repeatedly within a limited range without damaging the electrical connection.
[0048] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A retractable socket for connecting conduits, characterized in that, It includes a socket body and a plug, which are electrically connected via a connecting conduit; The connecting conduit includes at least a first conduit and a second conduit, the first conduit and the second conduit are slidably engaged along their length direction, the first conduit has a first elongated metal strip along its length direction on the side of its length near the second conduit, the second conduit has a first metal probe that maintains sliding contact with the first elongated metal strip on the side of its length near the first conduit, and the second conduit has an electrical connection line extending along its length direction inside.
2. The retractable socket for connecting conduits according to claim 1, characterized in that, The first catheter and the second catheter are upper and lower sliding rail structures, and the sliding rails are fitted to the outer side wall of the first catheter or the second catheter; the first elongated metal sheet and the first metal probe are wrapped inside by the upper and lower sliding rail structure.
3. The retractable socket for connecting conduits according to claim 1, characterized in that, The first conduit and the second conduit are nested, with the second conduit nested inside the first conduit. A first elongated metal strip is disposed on one inner wall of the first conduit, and a guide rail structure adapted to the second conduit is disposed on the other inner wall of the first conduit.
4. The retractable socket for connecting conduits according to claim 1, characterized in that, The first elongated metal strip includes a positive electrode metal strip, a negative electrode metal strip, and a grounding metal strip; the first elongated metal strip is made of copper.
5. The retractable socket for connecting conduits according to claim 1, characterized in that, It also includes a third conduit, which can slide and engage with the first or second conduit along its length, and is electrically connected to the first conduit via a second elongated metal strip and a second metal probe.
6. The retractable socket for connecting conduits according to claim 1, characterized in that, One end of the first conduit is connected to the socket body, and one end of the second conduit is connected to the plug.
7. The retractable socket for connecting conduits according to claim 1, characterized in that, The plug includes a head base, a rotating assembly, and metal pins. The rotating assembly is mounted on the head base, and the metal pins are disposed on the rotating assembly.
8. The retractable socket for connecting conduits according to claim 7, characterized in that, The rotating assembly includes a rotating base and a locking component, the locking component being used to limit the rotation angle of the rotating base.
9. The retractable socket for connecting conduits according to claim 8, characterized in that, The metal pins are multiple and integrated on a pin holder, which is fixedly connected to the rotating base, and each metal pin is electrically connected to a first elongated metal sheet.
10. The retractable socket for connecting conduits according to claim 9, characterized in that, The plug also includes a conductive plate, different areas of which are electrically connected to different first elongated metal strips, and the metal pins rotate within the corresponding areas of the conductive plate.