A power cord with a self-locking plug
Patent Information
- Application Number
- CN202521225088.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-06-16
AI Technical Summary
这种情况不仅会给用户带来不便,还可能在关键时刻导致设备故障或数据丢失等严重后果的问题
[0013] After the plug and socket are connected, adjust the movable block upwards so that the bottom of the movable block is flush with the surface of the socket. Then, adjust the telescopic screw outwards and simultaneously rotate the pressure plate 90 degrees to one side of the socket surface. The adjusted telescopic screw will press the pressing rod onto the surface of the pressure plate. At this time, the pressure plates on both sides of the plug will form a pressing and locking structure on the upper and lower sides of the socket, thereby improving the firmness of the plug and socket connection and reducing the risk of detachment.
Smart Images

Figure CN224697100U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of power cord technology, specifically relating to a power cord with a self-locking plug. Background Technology
[0002] Power cords are wires that carry current and are typically used to connect power sources to electrical equipment to provide the required electrical energy. As an important component of electrical equipment, the quality and safety of power cords are directly related to the normal operation of the equipment and the safety of the user.
[0003] Once the power cord is successfully connected and inserted into the socket, it is usually secured to some extent by the socket's design. However, in practical applications, this securing effect may be challenged if the power cord is subjected to significant pulling or external forces during use. In particular, when the pulling force exceeds the withstand range of the connection between the socket and the power cord, the connection may be accidentally pulled apart, resulting in a power outage.
[0004] If the connection between the socket end of the power cord and the socket is broken, the electrical equipment connected to the other end of the power cord will immediately lose power and thus fail to function properly. This not only causes inconvenience to users but may also lead to serious consequences such as equipment failure or data loss at critical moments. Utility Model Content
[0005] The purpose of this invention is to provide a power cord with a self-locking plug, aiming to solve the problem that once the connection between the power cord's socket end and the socket is broken, the electrical equipment connected to the other end of the power cord will immediately lose power, thus failing to work or operate normally. This situation not only causes inconvenience to users but may also lead to serious consequences such as equipment failure or data loss at critical moments.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a power cord with a self-locking plug, comprising a power cord, one end of which is connected to a plug, a fixing block being fixedly connected to the outer walls on both sides of the plug, and a movable block being movably connected to the outer wall of one side of the fixing block near the bottom.
[0007] The other end of the movable block is movably connected to a rotating block, the top of the rotating block is fixedly connected to a pressure plate, a rubber pad is embedded on one side of the outer wall of the pressure plate, a side plate is fixedly connected to the surface of the connection end between the movable block and the fixed block, and a telescopic screw is fixedly connected to one side of the side plate.
[0008] In order to allow the movable blocks to be adjusted upward so that the distance between the two movable blocks matches the distance of the socket where the plug connects, as a preferred embodiment of the power cord with a self-locking plug of this utility model, a spring is movably installed in the inner cavity of the fixed block, an end block is fixedly connected to the contact end of the movable block and the fixed block, and a connecting block is fixedly connected to the other side of the end block.
[0009] The end block and the linkage block are movably installed in the inner cavity of the fixed block, and the surface of the linkage block is fixedly connected to the bottom of the spring.
[0010] In order to enable the pressure plate to flip to the socket side where the plug is connected and to be horizontally positioned on one side of the socket, as a preferred embodiment of the power cord with a self-locking plug of this utility model, the movable block has two symmetrical notches at the end away from the end block, and a rotating shaft is installed inside each notch. The rotating block is installed in the notch by rotating the shaft.
[0011] In order to enable the pressing rod to press against the outer wall of the horizontally set pressure plate, thereby fixing the pressure plate to the outer wall of the socket and thus fixing the plug to the socket, as a preferred embodiment of the power cord with a self-locking plug of this utility model, a collar is sleeved on the outer wall of the movable end of the telescopic screw, and a pressing rod is fixedly connected to the outer wall of the collar, with the bottom of the pressing rod abutting against the surface of the movable block.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] After the plug and socket are connected, adjust the movable block upwards so that the bottom of the movable block is flush with the surface of the socket. Then, adjust the telescopic screw outwards and simultaneously rotate the pressure plate 90 degrees to one side of the socket surface. The adjusted telescopic screw will press the pressing rod onto the surface of the pressure plate. At this time, the pressure plates on both sides of the plug will form a pressing and locking structure on the upper and lower sides of the socket, thereby improving the firmness of the plug and socket connection and reducing the risk of detachment. Attached Figure Description
[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the plug structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixing block of this utility model;
[0018] Figure 4 This is a side sectional view of the fixing block structure of this utility model;
[0019] Figure 5 This is a side view cross-sectional structural diagram of the movable block of this utility model.
[0020] In the diagram: 1. Power cord; 2. Plug; 3. Fixed block; 31. Spring; 4. Movable block; 41. End block; 42. Linking block; 43. Notch; 5. Rotating block; 51. Shaft; 6. Pressure plate; 7. Rubber pad; 8. Telescopic screw; 81. Collar; 82. Extrusion rod; 9. Side plate. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-5 The present invention provides the following technical solution: a power cord with a self-locking plug, including a power cord 1, one end of the power cord 1 is connected to a plug 2, a fixing block 3 is fixedly connected to the outer walls of both sides of the plug 2, and a fixing block 3 is provided on the outer walls of both sides of the plug 2. A movable block 4 is movably connected to the outer wall of one side of the fixing block 3 near the bottom.
[0023] The other end of the movable block 4 is movably connected to a rotating block 5. The top of the rotating block 5 is fixedly connected to a pressure plate 6. A rubber pad 7 is embedded on one side of the outer wall of the pressure plate 6. A side plate 9 is fixedly connected to the surface of the connection end between the movable block 4 and the fixed block 3. A telescopic screw 8 is fixedly connected to one side of the side plate 9.
[0024] Preferably, a spring 31 is movably installed in the inner cavity of the fixed block 3, and an end block 41 is fixedly connected to the contact end of the movable block 4 and the fixed block 3, and a connecting block 42 is fixedly connected to the other side of the end block 41.
[0025] End block 41 and linkage block 42 are movably installed in the inner cavity of fixed block 3, and the surface of linkage block 42 is fixedly connected to the bottom of spring 31.
[0026] In actual use, the spring 31 will press the linkage block 42 downward through its own elasticity. When the linkage block 42 moves downward, it will drive the end block 41 to move downward. When the end block 41 moves downward, it will drive the movable block 4 to move downward. When the movable block 4 moves downward, it will also drive the pressure plate 6 to move downward.
[0027] When the pressure plate 6 is in a horizontal position, it can press against the outer wall of one side of the socket. The bottom of the pressure plate 6 is at the same horizontal position as the bottom of the movable block 4.
[0028] Preferably, the movable block 4 has two symmetrical notches 43 at the end away from the end block 41, and a rotating shaft 51 is installed inside each notch 43. The rotating block 5 is rotatably installed in the notch 43 through the rotating shaft 51.
[0029] In actual use, when the pressure plate 6 is turned, the pressure plate 6 will drive the rotating block 5 to rotate. The rotating block 5 then rotates in the notch 43 through the rotating shaft 51, thereby adjusting the pressure plate 6 to a horizontal state.
[0030] Preferably, a collar 81 is fitted onto the outer wall of the movable end of the telescopic screw 8, and a pressing rod 82 is fixedly connected to the outer wall of the collar 81, with the bottom of the pressing rod 82 abutting against the surface of the movable block 4.
[0031] In actual use, after the plug 2 is successfully connected to the socket, firstly, the movable block 4 needs to be adjusted upwards until its bottom is flush with the surface of the socket.
[0032] Next, adjust the telescopic screw 8. Slowly adjust the telescopic screw 8 outwards. At the same time, rotate the pressure plate 6 90 degrees toward the socket surface. This rotation must ensure that the pressure plate 6 is accurately in the predetermined locking position.
[0033] After the above adjustments, the telescopic screw 8 can then play its crucial role. The movable end of the pressing rod 82 on it will be pressed against the surface of the pressure plate 6. This pressing action will generate sufficient pressure to allow the pressure plate 6 to fit tightly against the upper and lower sides of the socket. At this time, the pressure plates 6 on both sides of the plug 2 form a stable pressing and locking structure, which can significantly improve the firmness of the plug 2 after it is connected to the socket.
[0034] Through this series of adjustment steps, the connection between plug 2 and socket becomes tighter and more reliable, thereby effectively reducing the risk of detachment due to unstable connection.
[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A power cord with a self-locking plug, comprising a power cord (1), one end of which is connected to a plug (2), characterized in that: A fixing block (3) is fixedly connected to each of the two outer walls of the plug (2), and a movable block (4) is movably connected to the outer wall of one side of the fixing block (3) near the bottom. The other end of the movable block (4) is movably connected to a rotating block (5). A pressure plate (6) is fixedly connected to the top of the rotating block (5). A rubber pad (7) is embedded on one side of the outer wall of the pressure plate (6). A side plate (9) is fixedly connected to the surface of the connection end between the movable block (4) and the fixed block (3). A telescopic screw (8) is fixedly connected to one side of the side plate (9).
2. A power cord with a self-locking plug according to claim 1, characterized in that: A spring (31) is movably installed in the inner cavity of the fixed block (3).
3. A power cord with a self-locking plug according to claim 1, characterized in that: An end block (41) is fixedly connected to the contact end of the movable block (4) and the fixed block (3), and a linkage block (42) is fixedly connected to the other side of the end block (41).
4. A power cord with a self-locking plug according to claim 2 or 3, characterized in that: The end block (41) and the linkage block (42) are movably installed in the inner cavity of the fixed block (3), and the surface of the linkage block (42) is fixedly connected to the bottom of the spring (31).
5. A power cord with a self-locking plug according to claim 1, characterized in that: The movable block (4) has two symmetrical notches (43) at the end away from the end block (41). Each notch (43) has a rotating shaft (51) installed inside it. The rotating block (5) is rotatably installed in the notch (43) through the rotating shaft (51).
6. A power cord with a self-locking plug according to claim 1, characterized in that: A collar (81) is fitted onto the outer wall of the movable end of the telescopic screw (8), and a pressing rod (82) is fixedly connected to the outer wall of the collar (81). The bottom of the pressing rod (82) abuts against the surface of the movable block (4).