Self-locking copper wire terminal
By designing a self-locking copper terminal block, and utilizing the mechanical structure of the threaded sleeve and fixing components, the problems of cumbersome operation and easy damage of existing copper terminal blocks are solved, enabling convenient connection and disassembly and improving the utilization rate of the terminals.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING CHANGHONG COPPER CO LTD
- Filing Date
- 2025-06-14
- Publication Date
- 2026-06-09
AI Technical Summary
Existing copper terminal blocks are cumbersome to connect and disconnect wires, and are easily deformed and damaged, making them unusable.
It adopts a self-locking copper terminal block, and through the design of threaded sleeve and fixing component, it uses the cooperation of threaded sleeve and arc block, combined with the mechanical structure of spring and convex button to realize convenient connection and disconnection of wires.
It simplifies the connection and disconnection process between wires and copper terminals, improves operational efficiency, reduces the risk of terminal deformation and damage, and enhances utilization.
Smart Images

Figure CN224342546U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of terminal block technology, specifically to a self-locking copper terminal block. Background Technology
[0002] Copper terminal blocks are used in electrical circuits to ensure reliable and convenient wiring. They are tools used with special crimping pliers to connect copper terminal blocks to the ends of wires. They are mainly used to achieve reliable connections of conductive materials such as wires and cables. Their functions include current transmission and signal transmission, ensuring the stability and reliability of electrical connections.
[0003] Patent No. 201721426634.9 discloses a copper terminal block, which has high friction on the electrical contact surface, thus improving the safety performance of the terminal block.
[0004] However, when using existing copper terminal blocks, crimping pliers is used to press the copper terminal block to make the copper terminal block and the wire tightly connected. However, when connecting the wire to the copper terminal block, the operator needs to press the crimping pliers multiple times, which is a cumbersome operation. At the same time, when the crimping pliers press the copper terminal block, the copper terminal block will be deformed, and the wire cannot be separated from the copper terminal block. Furthermore, the deformation of the copper terminal block will cause damage, making it unusable. Therefore, a self-locking copper terminal block is designed. Utility Model Content
[0005] In view of the problems in the background art, the present invention provides a self-locking copper terminal block.
[0006] The technical solution adopted by this utility model to solve its technical problem is a self-locking copper terminal block, including a copper terminal block body. The copper terminal block body is externally threaded with a threaded sleeve A and a threaded sleeve B, and the threaded sleeve A is located to the right of the threaded sleeve B. The copper terminal block body is externally provided with a fixing component A for locking the wire, and the copper terminal block body is internally provided with a fixing component B for locking the wire.
[0007] By adopting the above technical solution, when the wire is to be connected to the copper terminal body, the wire is first placed into the copper terminal body, and then the fixing component A outside the copper terminal body and the fixing component B inside the copper terminal body lock the wire inside the copper terminal body, thereby facilitating the connection between the wire and the copper terminal body.
[0008] When it is necessary to disconnect the wire from the copper terminal body, the fixing component A outside the copper terminal body and the fixing component B inside the copper terminal body will release the wire from the fixing, thereby facilitating the disconnection of the wire from the copper terminal body.
[0009] Specifically, the fixing component A includes an arc block, a rubber pad, and a threaded groove. The arc block is integrally formed on the outside of the copper terminal body. Threaded grooves are opened on the surfaces of both the copper terminal body and the arc block. A rubber pad that contacts the surface of the wire is bonded to the inside of the arc block.
[0010] By adopting the above technical solution, when the wire is connected to the copper terminal body, the threaded sleeve A outside the copper terminal body is rotated. Then the threaded sleeve A moves through the arc block and the threaded groove opened on the copper terminal body. Subsequently, the threaded sleeve A moves outside the arc block, so that the rubber pad on the inner side of the arc block contacts the surface of the wire, thereby facilitating the fixing of the wire inside the copper terminal body.
[0011] Specifically, the fixing component B includes spring A, spring B, a protruding button, an outer arc plate, and an inner arc plate. Spring A is symmetrically welded inside the copper terminal body. An outer arc plate is welded to one side of spring A. A protruding button is welded to the outside of the outer arc plate, and the end of the protruding button away from the outer arc plate extends to the outside of the copper terminal body.
[0012] By adopting the above technical solution, when the wire is placed into the copper terminal body, the threaded sleeve B is rotated. The threaded sleeve B rotates on the threaded groove opened on the surface of the copper terminal body. Then the threaded sleeve presses the protruding button on the copper terminal body. Subsequently, the protruding button enters the copper terminal body. The protruding button drives the outer arc plate to move inward. At the same time, the spring A outside the outer arc plate is stretched to generate elastic force.
[0013] Specifically, a spring B is welded inside the outer arc plate, and an inner arc plate that contacts the surface of the conductor is welded to one side of the spring B.
[0014] By adopting the above technical solution, when the outer arc plate drives the inner arc plate to contact the wire, the spring B inside the outer arc plate is compressed, and at the same time, the spring B drives the inner arc plate to squeeze the wire, so that the wire is fixed in the body of the copper terminal block.
[0015] Specifically, both threaded sleeve A and threaded sleeve B are covered with a serrated sleeve that increases friction.
[0016] By adopting the above technical solution, when threaded sleeve A and threaded sleeve B are rotated, the protruding sleeves on the outside of threaded sleeve A and threaded sleeve B increase the friction on the surfaces of threaded sleeve A and threaded sleeve B, thus preventing slippage when threaded sleeve A and threaded sleeve B rotate.
[0017] The beneficial effects of this utility model are:
[0018] The self-locking copper terminal block of this utility model involves inserting a wire into the copper terminal block body, then rotating the threaded sleeves A and B outside the copper terminal block body. The threaded sleeves A and B rotate through the threaded grooves on the surface of the copper terminal block and the arc block. The threaded sleeve A moves outside the arc block, causing the rubber pad inside the arc block to contact the surface of the wire, thus locking the wire inside the copper terminal block body. Simultaneously, the rotating threaded sleeve B presses against the protruding button on the copper terminal block body. The protruding button has a hemispherical end and subsequently enters the copper terminal block body. The protruding button drives the outer arc plate to move inward, while the spring A outside the outer arc plate stretches to generate elastic force. Then, when the outer arc plate drives the inner arc plate to contact the wire, the spring B inside the outer arc plate is compressed. Simultaneously, the spring B drives the inner arc plate to press against the wire, thus facilitating the locking of the wire inside the copper terminal block body.
[0019] The self-locking copper terminal block of this utility model allows for easy removal of the wire from the copper terminal block body when the wire needs to be disassembled. This is achieved by rotating the threaded sleeves A and B outside the copper terminal block body. Threaded sleeve A then moves off the arc block, releasing the rubber pad inside the arc block from the wire. Simultaneously, threaded sleeve B moves off the protruding button, and spring A inside the copper terminal block drives the outer arc plate to reset. The arc plate then drives the inner arc plate to separate from the wire, allowing the wire to be removed from the copper terminal block body. This facilitates the removal of the wire from the copper terminal block body and improves the utilization rate of the copper terminal block. Attached Figure Description
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Figure 1 This is a schematic diagram of the overall structure of the self-locking copper terminal block of this utility model;
[0022] Figure 2 This is a partial internal structural diagram of the self-locking copper terminal block of this utility model;
[0023] In the diagram: 1. Copper terminal block body; 2. Threaded sleeve A; 3. Threaded groove; 4. Arc block; 5. Rubber pad; 6. Protruding button; 7. Threaded sleeve B; 8. Fixing component A; 9. Protruding sleeve; 10. Spring A; 11. Spring B; 12. Fixing component B; 13. Inner arc plate; 14. Outer arc plate. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] In order to connect the wire to the copper terminal body 1, as an embodiment of this utility model, such as Figures 1 to 2As shown, the self-locking copper terminal block of this utility model includes a copper terminal block body 1. The copper terminal block body 1 is externally threaded with a threaded sleeve A2 and a threaded sleeve B7, with the threaded sleeve A2 located to the right of the threaded sleeve B7. The copper terminal block body 1 is externally provided with a fixing component A8 for locking the wire, and the copper terminal block body 1 is internally provided with a fixing component B12 for locking the wire.
[0026] When using the device, to connect the wire to the copper terminal body 1, first insert the wire into the copper terminal body 1. Then, the fixing component A8 outside the copper terminal body 1 and the fixing component B12 inside the copper terminal body 1 lock the wire inside the copper terminal body 1, thereby facilitating the connection between the wire and the copper terminal body 1.
[0027] When it is necessary to disconnect the wire from the copper terminal body 1, the fixing component A8 outside the copper terminal body 1 and the fixing component B12 inside the copper terminal body 1 will release the wire from the fixing, thereby facilitating the disconnection of the wire from the copper terminal body 1.
[0028] To secure the wires within the copper terminal block body 1, for example, as shown... Figure 1 As shown, the present invention also includes the fixing component A8, which includes an arc block 4, a rubber pad 5 and a threaded groove 3. The arc block 4 is integrally formed on the outside of the copper terminal body 1. Threaded grooves 3 are opened on the surfaces of both the copper terminal body 1 and the arc block 4. A rubber pad 5 that contacts the surface of the wire is bonded to the inside of the arc block 4.
[0029] When in use, when the wire is connected to the copper terminal body 1, rotate the threaded sleeve A2 outside the copper terminal body 1. Then the threaded sleeve A2 moves through the arc block 4 and the threaded groove 3 opened on the copper terminal body 1. Subsequently, the threaded sleeve A2 moves outside the arc block 4, so that the rubber pad 5 on the inner side of the arc block 4 contacts the surface of the wire, thereby facilitating the fixing of the wire inside the copper terminal body 1.
[0030] To move the outer arc plate 14 inward, for example, as follows: Figure 2 As shown, the present invention also includes the fixing component B12, which includes a spring A10, a spring B11, a protruding button 6, an outer arc plate 14 and an inner arc plate 13. The spring A10 is symmetrically welded inside the copper terminal body 1. The outer arc plate 14 is welded to one side of the spring A10. The protruding button 6 is welded to the outside of the outer arc plate 14, and the end of the protruding button 6 away from the outer arc plate 14 extends to the outside of the copper terminal body 1.
[0031] When in use, when the wire is inserted into the copper terminal body 1, the threaded sleeve B7 is rotated. The threaded sleeve B7 rotates on the threaded groove 3 opened on the surface of the copper terminal body 1. Then the threaded sleeve B7 presses the protruding button 6 on the copper terminal body 1. Subsequently, the protruding button 6 enters the copper terminal body 1. The protruding button 6 drives the outer arc plate 14 to move inward. At the same time, the spring A10 outside the outer arc plate 14 is stretched to generate elastic force.
[0032] To secure the wires within the copper terminal block body 1, for example, such as... Figure 2 As shown, the present invention also includes a spring B11 welded inside the outer arc plate 14, and an inner arc plate 13 that contacts the surface of the conductor is welded to one side of the spring B11.
[0033] When in use, when the outer arc plate 14 drives the inner arc plate 13 to contact the wire, the spring B11 inside the outer arc plate 14 is compressed, and at the same time the spring B11 drives the inner arc plate 13 to squeeze the wire, so that the wire is fixed in the copper terminal body 1.
[0034] To prevent slippage of threaded sleeves A2 and B7 during rotation, for example, as follows: Figure 1 As shown, the present invention also includes a threaded sleeve A2 and a threaded sleeve B7, both of which are covered with a studded sleeve 9 that increases friction.
[0035] When in use, when threaded sleeve A2 and threaded sleeve B7 are rotated, the protruding bushing 9 on the outside of threaded sleeve A2 and threaded sleeve B7 increases the friction on the surface of threaded sleeve A2 and threaded sleeve B7, preventing slippage when threaded sleeve A2 and threaded sleeve B7 are rotated.
[0036] In use, the wire is first placed into the copper terminal body 1. Then, the threaded sleeves A2 and B7 on the outside of the copper terminal body 1 are rotated. The threaded sleeves A2 and B7 rotate through the threaded grooves 3 on the surface of the copper terminal body 1 and the arc block 4. The threaded sleeve A2 moves outside the arc block 4, so that the rubber pad 5 on the inner side of the arc block 4 contacts the surface of the wire, locking the wire inside the copper terminal body 1. At the same time, when the threaded sleeve B7 rotates, it presses the protruding button 6 on the copper terminal body 1. The end of the protruding button 6 is hemispherical. Then, the protruding button 6 enters the copper terminal body 1. The protruding button 6 drives the outer arc plate 14 to move inward. At the same time, the spring A10 on the outside of the outer arc plate 14 is stretched to generate elastic force. Then, the outer arc plate 14 moves inward. When the inner arc plate 13 contacts the wire, the spring B11 inside the outer arc plate 14 is compressed. At the same time, the spring B11 drives the inner arc plate 13 to press the wire, thus facilitating the locking of the wire inside the copper terminal body 1. When the wire needs to be removed from the copper terminal body 1, rotate the threaded sleeve A2 and threaded sleeve B7 outside the copper terminal body 1. Then, the threaded sleeve A2 moves off the arc block 4, and the rubber pad 5 inside the arc block 4 releases the wire from the lock. At the same time, the threaded sleeve B7 moves off the protrusion 6. The spring A10 inside the copper terminal body 1 drives the outer arc plate 14 to reset. Then, the arc plate drives the inner arc plate 13 to separate from the wire, and then the wire is removed from the copper terminal body 1, thus facilitating the removal of the wire from the copper terminal body 1.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A self-locking copper terminal block, characterized in that, The copper terminal body (1) is externally threaded with a threaded sleeve A (2) and a threaded sleeve B (7), with the threaded sleeve A (2) located to the right of the threaded sleeve B (7). The copper terminal body (1) is externally provided with a fixing component A (8) for locking the wire, and the copper terminal body (1) is internally provided with a fixing component B (12) for locking the wire.
2. The self-locking copper terminal block according to claim 1, characterized in that, The fixing component A (8) includes an arc block (4), a rubber pad (5) and a threaded groove (3). The copper terminal body (1) is integrally formed with an arc block (4). The copper terminal body (1) and the arc block (4) are both provided with threaded grooves (3). The inner side of the arc block (4) is bonded with a rubber pad (5) that contacts the surface of the wire.
3. The self-locking copper terminal block according to claim 1, characterized in that, The fixing component B (12) includes spring A (10), spring B (11), protruding button (6), outer arc plate (14) and inner arc plate (13). Spring A (10) is symmetrically welded inside the copper terminal body (1). An outer arc plate (14) is welded to one side of spring A (10). A protruding button (6) is welded to the outside of the outer arc plate (14), and the end of the protruding button (6) away from the outer arc plate (14) extends to the outside of the copper terminal body (1).
4. The self-locking copper terminal block according to claim 3, characterized in that, The outer arc plate (14) is welded with a spring B (11), and an inner arc plate (13) that contacts the surface of the conductor is welded to one side of the spring B (11).
5. The self-locking copper terminal block according to claim 1, characterized in that, The surfaces of threaded sleeve A (2) and threaded sleeve B (7) are both covered with a tack sleeve (9) that is bonded to increase friction.