Rail type electric socket
By employing U-shaped contact springs and multiple sets of sockets in the rail-mounted socket, the problems of large space occupation and high cost of rail-mounted sockets are solved, achieving flexible position adjustment and stable electrical connection to meet the needs of electrical appliances in different locations.
Patent Information
- Application Number
- CN202520449436.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing track sockets have limitations in use. Overly long tracks take up a lot of space and are costly, while short tracks have limited application range and cannot flexibly adapt to the needs of electrical appliances in different locations.
Using U-shaped contact springs as electrical connection components, combined with multiple sets of sockets and inserts, the track socket can be slidably adjusted on the mounting base. By selecting different socket combinations, the track socket can be flexibly adjusted, reducing the track length requirement.
It enables flexible adaptation of track sockets, allowing the position to be adjusted according to the location requirements of electrical equipment, reducing material usage and costs, while maintaining stable electrical connections and safe grounding.
Smart Images

Figure CN223871831U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of socket technology, and in particular to a track-type electrical socket. Background Technology
[0002] A track socket is a type of portable socket that includes a track and an adapter (socket). The adapter can be mounted at different positions on the track to draw power. By sliding the adapter along the track, it can be moved freely within a certain range, thus enabling the adapter to power appliances in multiple locations.
[0003] Compared to fixed sockets, which are limited to drawing power from a fixed location, the most prominent advantage of portable track sockets is that users can move the adapter anywhere within a certain range by sliding it along the track. This allows the adapter to power appliances in multiple locations. Therefore, portable track sockets are quite popular in the socket industry.
[0004] However, existing rail-mounted sockets still have some shortcomings in use. Rail-mounted sockets typically adopt a strip structure, which, while providing flexible power distribution, also brings some problems. While excessively long rail-mounted sockets offer a wider range of applications, they also take up more space; furthermore, they require more materials to manufacture, increasing costs. On the other hand, short rail-mounted sockets, while compact in structure and space-saving, have limited applications. Utility Model Content
[0005] To address the issues in the prior art where excessively long track sockets, while having a wide range of applications, occupy a large amount of space and require more materials during manufacturing, leading to increased costs, and where short track sockets, while having a compact structure and small footprint, have limited applications, this utility model proposes a track-type electrical socket.
[0006] The technical solution of this utility model is: a track-type electrical socket, including a mounting base, a track socket provided on the mounting base, the track socket including a shell extending in the left and right direction, an insulating base fixedly provided inside the shell, two U-shaped contact springs with rear opening structure extending in the left and right direction fixedly provided inside the insulating base, the two U-shaped contact springs being arranged vertically at intervals; a ground contact piece extending in the left and right direction is fixedly provided inside the insulating base, the ground contact piece being located between the two U-shaped contact springs;
[0007] The rear side of the insulating base and the rear side of the housing have multiple sets of sockets that are spaced apart from left to right and open from front to back. Each set of sockets includes three sockets, which correspond one-to-one with the ground contact piece and the two U-shaped contact springs. Three inserts are fixed on the mounting base. The front ends of the three inserts can pass through any set of sockets and extend into the insulating base. The two inserts on the upper and lower sides are inserted into the U-shaped contact springs, and the insert in the middle abuts against the ground contact piece.
[0008] Preferably, the front side of the housing is provided with a plurality of adapters spaced apart to the left and right. Each adapter includes a contact foot. The front side of the housing is provided with a sliding groove extending in the left and right direction. The sliding groove communicates with the interior of the housing. The contact foot passes through the sliding groove and is inserted into the housing. The contact foot includes a ground contact foot and two neutral and live contact feet. The ground contact foot is connected to a ground contact piece. The two neutral and live contact feet are respectively connected to two U-shaped contact springs.
[0009] Preferably, the front side of the mounting base is inclined from top to bottom and from back to front, and the rear side of the track socket is attached to the front side of the mounting base.
[0010] Preferably, the front bottom of the mounting base is fixed with a support plate extending in the left-right direction, the support plate is perpendicular to the front side of the mounting base, and the bottom of the track socket is abutted against the support plate.
[0011] Preferably, the left and right lengths of the support plate are greater than the left and right lengths of the mounting base, which can improve the stability of the support plate when bearing the track socket.
[0012] Advantages of this invention: This invention features three inserts on the mounting base for installing the track socket, and uses a U-shaped contact spring as the electrical connection component of the track socket. Multiple sets of sockets are provided on the rear side of the insulating base and the rear side of the housing. This allows the three inserts of the mounting base to be inserted into any set of sockets according to actual needs. By selecting different sets of sockets, the track socket can slide and adjust left and right on the mounting base, flexibly adapting to the location requirements of electrical equipment. This eliminates the need for an excessively long track socket and allows for adjustment of its position according to the location requirements of electrical appliances, thus expanding its usability. Attached Figure Description
[0013] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This utility model Figure 1 Another perspective structural diagram;
[0016] Figure 3 This utility model Figure 1 Side view;
[0017] Figure 4 This utility model Figure 1 Side sectional view.
[0018] In the diagram: 1. Track socket; 11. Housing; 12. Insulating base; 13. U-shaped contact spring; 14. Ground contact piece; 15. Slide groove; 2. Mounting base; 21. Insert piece; 3. Adapter; 31. Contact foot; 311. Ground contact foot; 312. Neutral and live contact foot; 4. Socket; 5. Support plate. Detailed Implementation
[0019] 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.
[0020] Example 1: A track-mounted electrical socket, such as Figure 1-4 As shown, the device includes a mounting base 2, on which a track socket 1 is mounted. The track socket 1 includes a housing 11 extending in the left-right direction. An insulating base 12 is fixed inside the housing 11. The insulating base 12 is a plastic profile part arranged along the extension direction of the housing 11. Two U-shaped contact springs 13 with rear openings and extending in the left-right direction are fixed inside the insulating base 12. The two U-shaped contact springs 13 are arranged vertically at intervals. The U-shaped contact springs 13 are U-shaped strip structures with rear openings, made of elastic metal material, with a curved middle part to form a stable elastic contact force. The U-shaped contact springs 13 are used to provide stable electrical contact. Their U-shaped design can ensure close contact with the plug during insertion and removal, while providing uniform pressure to ensure the reliability and stability of the electrical connection. A ground contact piece 14 extending in the left-right direction is fixed inside the insulating base 12. The ground contact piece 14 is located between the two U-shaped contact springs 13. The ground contact piece 14 is arc-shaped and has a certain elasticity to maintain close contact with the plug.
[0021] Multiple sets of sockets 4, spaced apart horizontally and open from front to back, are provided on the rear side of the insulating base 12 and the rear side of the housing 11. Each set of sockets 4 includes three sockets 4, which correspond one-to-one with the ground contact piece 14 and the two U-shaped contact springs 13. Three inserts 21 are fixedly provided on the mounting base 2. The front ends of the three inserts 21 can pass through any set of sockets 4 and extend into the insulating base 12. The two inserts 21 located on the upper and lower sides are inserted into the U-shaped contact springs 13, and the insert 21 located in the middle abuts against the ground contact piece 14. The inserts 21 contact the arc-shaped elastic structure of the ground contact piece 14, and the grounding circuit is maintained through elastic pressure to ensure the safe grounding of the electrical equipment.
[0022] When the three prongs 21 of the mounting base 2 are inserted into any set of sockets 4 of the track socket 1, the prongs 21 on the upper and lower sides are embedded in the openings of the U-shaped contact spring 13. Since the U-shaped contact spring 13 is made of elastic metal material, its U-shaped structure undergoes elastic deformation when the prongs 21 are inserted, forming a stable clamping force to ensure close contact between the prongs 21 and the U-shaped contact spring 13. By adjusting the position of the three prongs 21 of the mounting base 2 on multiple sets of sockets 4, the position of the track socket 1 on the mounting base 2 can be changed, thereby adjusting the position of the track socket 1 in the left and right directions. This allows the track socket 1 to be adjusted according to the position requirements of the electrical appliances without needing to be too long, thus improving its usability.
[0023] The mounting base 2 contains a power management module, which is electrically connected to the power supply system and to three plugs 21. The power management module is used to distribute and protect the power in the power supply system, including overload protection, short circuit protection, and overvoltage protection. For those skilled in the art, the power management module is a well-known technology, so it will not be described in detail.
[0024] Multiple adapters 3 are slidably provided on the front side of the housing 11, spaced apart from left to right. The adapters 3 are used to connect plugs of different types or specifications to the rail socket, providing stable electrical contact and current transmission. For those skilled in the art, the adapters 3 are known technology and will not be described in detail. The adapters 3 include contact feet 31. The front side of the housing 11 has a sliding groove 15 extending in the left-right direction. The sliding groove 15 communicates with the interior of the housing 11. The contact feet 31 pass through the sliding groove 15 and are inserted into the housing 11. The contact feet 31 include a ground contact foot 311 and two neutral and live contact feet 312. The ground contact foot 311 is connected to the ground contact piece 14, and the two neutral and live contact feet 312 are respectively connected to two U-shaped contact springs 13. For those skilled in the art, the connection between the adapters 3 and the rail socket 1 is known technology and will not be described in detail.
[0025] The front side of the mounting base 2 is inclined from top to bottom and from back to front. The rear side of the track socket 1 is attached to the front side of the mounting base 2. The inclined surface allows the mounting base 2 to bear part of the weight of the track socket 1, thereby reducing the load on the insert 21 and improving the stability between the mounting base 2 and the track socket 1. At the same time, it allows the track socket 1 to be tightly attached to the front side of the mounting base 2 under the action of gravity, thereby preventing the insert 21 from being pulled out of the U-shaped contact spring 13, further improving the stability between the mounting base 2 and the track socket 1.
[0026] A support plate 5 extending in the left-right direction is fixedly provided on the front bottom of the mounting base 2. The support plate 5 is perpendicular to the front side of the mounting base 2. The bottom of the track socket 1 is attached to the support plate 5. The support plate 5 can support the track socket 1 and prevent the center of gravity of the track socket 1 from shifting after changing its position on the mounting base 2. The insert 21 inside it disengages from the U-shaped contact spring 13.
[0027] The left and right lengths of the support plate 5 are greater than those of the mounting base 2, which can improve the stability of the support plate 5 when bearing the track socket 1.
[0028] Working principle: When the three prongs 21 of the mounting base 2 are inserted into any set of sockets 4 of the track socket 1, the prongs 21 on the upper and lower sides are embedded in the openings of the U-shaped contact spring 13. Since the U-shaped contact spring 13 is made of elastic metal material, its U-shaped structure generates elastic deformation when the prongs 21 are inserted, forming a stable clamping force to ensure close contact between the prongs 21 and the U-shaped contact spring 13, thereby achieving a reliable electrical connection between the live wire and the neutral wire. The track socket 1 has multiple sets of sockets 4 spaced left and right behind the insulating base 12. Users can insert the three prongs 21 of the mounting base 2 into any set of sockets 4 according to actual needs. By selecting different sets of sockets, the track socket 1 can slide and adjust on the mounting base 2 in the left and right direction, thereby flexibly adapting to the position requirements of the electrical equipment.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims and not by the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A track-mounted electrical socket, characterized in that: Includes a mounting base (2), on which a track socket (1) is provided. The track socket (1) includes a housing (11) extending in the left-right direction. An insulating base (12) is fixedly provided inside the housing (11). Two U-shaped contact springs (13) with rear opening structures and extending in the left-right direction are fixedly provided inside the insulating base (12). The two U-shaped contact springs (13) are arranged vertically at intervals. A ground contact piece (14) extending in the left-right direction is fixedly provided inside the insulating base (12). The ground contact piece (14) is located between the two U-shaped contact springs (13). The rear side of the insulating base (12) and the rear side of the housing (11) are provided with multiple sets of sockets (4) that are spaced apart from left to right and open from front to back. Each set of sockets (4) includes three sockets (4), and the three sockets (4) correspond one-to-one with the ground contact piece (14) and the two U-shaped contact springs (13). Three inserts (21) are fixed on the mounting base (2). The front end of the three inserts (21) can pass through any set of sockets (4) and extend into the insulating base (12). The two inserts (21) located on the upper and lower sides are inserted into the U-shaped contact springs (13), and the insert (21) located in the middle abuts against the ground contact piece (14).
2. A track-mounted electrical socket according to claim 1, characterized in that: Multiple adapters (3) are slidably provided on the front side of the housing (11) with left and right intervals. Each adapter (3) includes a contact foot (31). A sliding groove (15) extending in the left and right direction is provided on the front side of the housing (11). The sliding groove (15) communicates with the interior of the housing (11). The contact foot (31) passes through the sliding groove (15) and is inserted into the housing (11). The contact foot (31) includes a ground contact foot (311) and two neutral and live contact feet (312). The ground contact foot (311) is connected to the ground contact piece (14). The two neutral and live contact feet (312) are respectively connected to two U-shaped contact springs (13).
3. A track-mounted electrical socket according to claim 1, characterized in that: The front side of the mounting base (2) is inclined from top to bottom and from back to front, and the rear side of the track socket (1) is attached to the front side of the mounting base (2).
4. A track-mounted electrical socket according to claim 1, characterized in that: The mounting base (2) has a support plate (5) that extends in the left and right direction fixed on the front bottom. The support plate (5) is perpendicular to the front side of the mounting base (2), and the bottom of the track socket (1) is attached to the support plate (5).
5. A track-type electrical socket according to claim 4, characterized in that: The left and right lengths of the tray (5) are greater than the left and right lengths of the mounting base (2), which can improve the stability of the tray (5) when bearing the track socket (1).