Wire connector

Abstract

The application discloses a wire joint, which comprises a first joint assembly and a second joint assembly, one end of the first joint assembly is threadedly connected with one end of the second joint assembly, the first joint assembly is provided with a containing cavity, a conductive sheet is arranged in the containing cavity, the conductive sheet is spirally wound around the axis of the containing cavity, and the conductive sheet surrounds an installation space for containing wires; one end of the conductive sheet is connected with the end of the containing cavity away from the second joint assembly, and the other end of the conductive sheet is connected with the second joint assembly; the first joint assembly is provided with a first installation hole, the second joint assembly is provided with a second installation hole, two wires can respectively pass through the first installation hole and the second installation hole and extend into the installation space, and the second joint assembly is rotated to drive the conductive sheet to tighten the installation space, so that the conductive sheet clamps the two wires. The structure makes the conductive sheet have a larger contact surface with the wires, and is favorable for improving the mechanical connection strength and the electrical connection reliability between the two.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, in particular to a wire joint. BACKGROUND

[0002] The wire is a common power equipment in people's daily life, which is used for power transmission in daily life. In the laying and maintenance of the wire, the wire joint is often used to connect two wires. The existing wire joint mainly includes a shell and a screw arranged on the shell, the wire is inserted into the shell and fixed by the screw. At the same time, the shell has two screws connected with two wires respectively, and the electrical path is realized by the abutment of the screw and the corresponding wire, and the electrical path is realized by the abutment of the screw and the corresponding wire. The two screws are connected through the conductive structure in the shell. The wire joint can fix two wires and realize the electrical path between the two wires through the screw and the conductive structure. The existing technology has the following disadvantages: because the contact surface between the screw and the wire is small, the wire and the screw are easy to loosen during the pulling of the wire, which causes the circuit of the two wires to be disconnected. At the same time, because the contact surface between the screw and the wire is small, the contact is poor during operation, and the circuit is interrupted. SUMMARY

[0003] The purpose of the embodiment of the present application is to provide a wire joint, which has a large contact surface between the conductive sheet and the wire, stable connection, and high circuit reliability.

[0004] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0005] A wire joint is provided for connecting and fixing two wires and conducting a circuit, comprising a first joint assembly and a second joint assembly, one end of the first joint assembly is threadedly connected with one end of the second joint assembly, the first joint assembly has a receiving cavity, the receiving cavity is provided with a conductive sheet, the conductive sheet is wound around the axis of the receiving cavity in a spiral shape, and the conductive sheet surrounds an installation space for accommodating the wire, one end of the conductive sheet is connected with one end of the receiving cavity away from the second joint assembly, the other end of the conductive sheet is connected with the second joint assembly, the first joint assembly is provided with a first installation hole for penetrating the wire, the first installation hole is in communication with the installation space, the second joint assembly is provided with a second installation hole for penetrating the wire, the second installation hole is in communication with the installation space, the two wires can respectively penetrate the first installation hole and the second installation hole and extend into the installation space, and the installation space is tightened by rotating the second joint assembly to drive the conductive sheet to clamp the two wires.

[0006] Further, the outer diameter of the first joint assembly is equal to the outer diameter of the second joint assembly.

[0007] Further, the first joint assembly comprises a first housing, one end of the first housing is provided with a connecting part, the connecting part is provided with external threads, one end of the second joint assembly is provided with internal threads matched with the external threads.

[0008] Further, the first housing and the connecting part are integrally formed.

[0009] Further, one end of the first joint assembly away from the second joint assembly is conical, one end of the second joint assembly away from the first joint assembly is conical.

[0010] Further, an operation window is formed on the hole wall of the first mounting hole, a first pressing plate is movably arranged in the operation window, and the first pressing plate is used for pressing the corresponding electric wire;

[0011] An operation window is formed on the hole wall of the second mounting hole, a second pressing plate is movably arranged in the operation window, and the second pressing plate is used for pressing the corresponding electric wire.

[0012] Further, a plurality of sharp parts are arranged on the first pressing plate and the second pressing plate, and the sharp parts are used for piercing the insulation layer of the corresponding electric wire.

[0013] Further, the hole wall of the first mounting hole and the second mounting hole is provided with an elastic layer.

[0014] Further, the peripheral part of the second joint assembly is recessed with an anti-skid groove.

[0015] Further, the conductive sheet is made of copper sheet.

[0016] The beneficial effects of the present application are as follows: by arranging the conductive sheet in the accommodating cavity, the conductive sheet is wound in a spiral shape and surrounds the mounting space. In use, two electric wires are inserted from the first mounting hole and the second mounting hole respectively, and the two electric wires are inserted into the mounting space from the two ends of the conductive sheet. By rotating the second joint assembly, the two ends of the conductive sheet are relatively rotated and the conductive sheet is tightened in the mounting space, so that the conductive sheet is tightly clamped on the peripheral part of the electric wire. The structure makes the conductive sheet and the electric wire have a larger contact surface, which is beneficial to improve the mechanical connection strength and electrical connection reliability between the two, and has the characteristics of stable connection and high circuit reliability. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described in detail below according to the drawings and examples.

[0018] Figure 1 It is a schematic view of the electric wire joint of the present application.

[0019] Figure 2 A cross-sectional view of the wire joint of the embodiment of the present application.

[0020] Figure 3 A schematic view of the installation of the second joint assembly and the wire of the embodiment of the present application.

[0021] Figure 4 A schematic view of the connection of the conductive sheet and the wire of the embodiment of the present application.

[0022] Figure 5 A partial schematic view of the wire joint of the embodiment of the present application.

[0023] In the figure:

[0024] 1, first joint assembly; 10, accommodating cavity; 11, first shell; 12, connecting part; 13, first pressing plate; 2, second joint assembly; 21, second pressing plate; 22, sharp part; 3, conductive sheet; 31, installation space; 4, wire; 41, wire; 42, insulating layer; 5, elastic layer. DETAILED DESCRIPTION

[0025] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects reached more clear, the technical solutions of the embodiments of the present application will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0026] As Figures 1 to 4As shown, the application provides a wire joint for connecting and fixing two wires 4 and making the two wires 4 conductive. The wire joint comprises a first joint assembly 1, a second joint assembly 2 and a conductive sheet 3. The first joint assembly 1 is used to fix one of the two wires 4, and the second joint assembly 2 is used to fix the other wire 4, so that the joint ends of the two wires 4 are connected together through the first joint assembly 1 and the second joint assembly 2. The conductive sheet 3 is used to electrically connect the two wires 4 to realize the conduction of the two wires 4. One end of the first joint assembly 1 is threadedly connected to one end of the second joint assembly 2, so that the first joint assembly 1 and the second joint assembly 2 can rotate relative to each other. The first joint assembly 1 has a receiving cavity 10 therein, and the conductive sheet 3 is installed in the receiving cavity 10. The length direction of the receiving cavity 10 extends along the axial direction of the wire joint, and the receiving cavity 10 is coaxial with the first joint assembly 1. The conductive sheet 3 is wound in a spiral shape around the axis of the receiving cavity 10, and the conductive sheet 3 surrounds an installation space 31 for accommodating the wire 4. One end of the conductive sheet 3 is connected to the end of the receiving cavity 10 away from the second joint assembly 2, and the other end of the conductive sheet 3 is connected to the second joint assembly 2. When the second joint assembly 2 rotates relative to the first joint assembly 1, one end of the conductive sheet 3 rotates together with the second joint assembly 2, and the installation space 31 located in the middle region of the conductive sheet 3 is tightened through the rotation of the conductive sheet 3. The first joint assembly 1 is provided with a first mounting hole coaxial with and communicating with the receiving cavity 10, and the end of the first mounting hole facing the receiving cavity 10 is opposite to the end of the installation space 31 of the conductive sheet 3, so that the first mounting hole communicates with the installation space 31, and the wire 4 can pass through the first mounting hole into the installation space 31. The second joint assembly 2 is provided with a second mounting hole coaxial with and communicating with the receiving cavity 10, and the end of the second mounting hole facing the receiving cavity 10 is opposite to the end of the installation space 31, so that the second mounting hole communicates with the installation space 31, and the wire 4 can pass through the second mounting hole into the installation space 31. When connecting the wires 4, the two wires 4 respectively pass through the first mounting hole and the second mounting hole and extend into the installation space 31. The two ends of the conductive sheet 3 are clamped to the two wires 4 respectively by rotating the second joint assembly 2 to drive the conductive sheet 3 to tighten the installation space 31.

[0027] It can be understood that the first mounting hole is arranged at the end of the first joint assembly 1 away from the second joint assembly 2, and the second mounting hole is arranged at the end of the second joint assembly 2 away from the first joint assembly 1, so that the two wires 4 are respectively inserted from the opposite ends of the wire joint. One of the wires 4 passes through the first mounting hole and is inserted into the installation space 31 near the end of the first mounting hole, and the end of the wire 4 is inserted into the middle position of the length direction (i.e. the axis direction of the wire joint) of the installation space 31. The other wire 4 passes through the second mounting hole and is inserted into the installation space 31 near the end of the second mounting hole, and the end of the wire 4 is inserted into the middle position of the length direction of the installation space 31. Preferably, the ends of the two wires 4 abut. After the conductive sheet 3 is tightened in the installation space 31, the entire conductive sheet 3 is wrapped outside the wire 4, so that the contact area between the wire 4 and the conductive sheet 3 is large, thereby ensuring the reliability of the electrical connection between the two wires 4. At the same time, the entire surface of the conductive sheet 3 is wrapped outside the wire 4, and the friction between them is large, so that the mechanical connection strength between the wire 4 and the conductive sheet 3 is high, ensuring the stability of the connection of the wire 4.

[0028] Referring to Figure 4 It is shown that the conductive sheet 3 is made of copper sheet, so as to have good electrical conductivity, ductility and flexibility, so as to be wound into a spiral shape and make the circuit of the two wires 4 conductive. When the conductive sheet 3 is in an unfolded state, it has a long strip structure. The conductive sheet 3 is wound on the wire 4 from one end to the other end in turn, and extends along the length direction of the wire 4 at the same time, so as to form a spiral conductive sheet 3. The side of the conductive sheet 3 facing the wire 4 surrounds an installation space 31 for accommodating the wire 4.

[0029] The wire 4 includes a wire 41 and an insulating layer 42 wrapped outside the wire 41. When the wire 4 is connected, the insulating layer 42 of the joint end of the wire 4 is removed to expose the wire 41. The exposed length of the wire 41 is adaptively selected according to the length dimension of the installation space 31 of the conductive sheet 3, so that the wire 41 is inserted into the installation space 31.

[0030] Optionally, the outer diameter of the first joint assembly 1 is equal to the outer diameter of the second joint assembly 2. This structure makes the outer surface of the wire joint relatively smooth, so as to avoid the wire joint being hooked by external objects when the wire 4 is pulled through the wall or laid.

[0031] Optionally, referring to Figure 2As shown, the first joint assembly 1 comprises a first housing 11 and a connecting portion 12, both of which are made of plastic material and integrally formed by injection molding. The connecting portion 12 is located at an end of the first housing 11 facing the second joint assembly 2, and the diameter of the connecting portion 12 is smaller than that of the first housing 11. The connecting portion 12 is used to connect with the second joint assembly 2, and the peripheral portion of the connecting portion 12 is provided with external threads. The second joint assembly 2 comprises a second housing having the same diameter as the first housing 11. An end of the second housing facing the first joint assembly 1 is provided with a plug-in hole, and the hole wall of the plug-in hole is provided with internal threads matched with the external threads of the connecting portion 12. The connecting portion 12 is inserted into the plug-in hole of the second housing and threadedly connected. When the electric wire 4 is connected, after the electric wire 4 is inserted into the installation space 31 of the conductive sheet 3, the second housing can be screwed to move along the length direction of the connecting portion 12, and the first housing 11 and the second housing are moved away from each other. One end of the conductive sheet 3 is connected with the second housing, and the second housing drives the conductive sheet 3 to rotate, and at the same time, the two ends of the conductive sheet 3 are moved away from each other, so as to tighten the installation space 31 of the conductive sheet 3, and the conductive sheet 3 is tightly clamped on the peripheral portion of the electric wire 4.

[0032] In order to facilitate the wall-penetrating operation of the electric wire 4 and the pulling during the laying process, one end of the first joint assembly 1 away from the second joint assembly 2 is conical, and one end of the second joint assembly 2 away from the first joint assembly 1 is conical. That is, one end of the first housing 11 away from the second housing is conical, and one end of the second housing away from the first housing 11 is conical. One end of the first installation hole is located on the small end of the conical structure on the first housing 11, and one end of the second installation hole is located on the small end of the conical structure on the second housing.

[0033] Optionally, with reference to Figure 2 , Figure 3 and Figure 5As shown, the hole wall of the first mounting hole is provided with an operation window, that is, an operation window is provided at the end of the first shell 11 away from the second joint assembly 2, and the operation window is in communication with the first mounting hole. A first pressing plate 13 is movably arranged in the operation window, and the end of the first pressing plate 13 close to the second joint assembly 2 is rotatably connected with the first shell 11, so that the first pressing plate 13 can rotate around the connection between the first pressing plate 13 and the first shell 11. After the electric wire 4 is inserted into the first mounting hole, the first pressing plate 13 can be pressed down and tightly press the electric wire 4. The end of the first pressing plate 13 away from the second joint assembly 2 is clamped and fixed with the first shell 11. The side of the first pressing plate 13 facing the first mounting hole is provided with a plurality of sharp parts 22 at intervals, and the sharp parts 22 are used to pierce the insulation layer 42 on the electric wire 4. Similarly, the hole wall of the second mounting hole is provided with an operation window, that is, an operation window is provided at the end of the second shell away from the first joint assembly 1, and the operation window is in communication with the second mounting hole. A second pressing plate 21 is movably arranged in the operation window, and the end of the second pressing plate 21 close to the first joint assembly 1 is rotatably connected with the second shell, so that the second pressing plate 21 can rotate around the connection between the second pressing plate 21 and the second shell. After the electric wire 4 is inserted into the second mounting hole, the second pressing plate 21 can be pressed down and tightly press the electric wire 4. The end of the second pressing plate 21 away from the first joint assembly 1 is clamped and fixed with the second shell. The side of the second pressing plate 21 facing the second mounting hole is provided with a plurality of sharp parts 22 at intervals, and the sharp parts 22 are used to pierce the insulation layer 42 on the electric wire 4. In the embodiment, the wire 41 of the electric wire 4 is inserted into the installation space 31 of the conductive sheet 3, the insulation layer 42 of the electric wire 4 is inserted into the first mounting hole or the second mounting hole, the corresponding electric wire 4 is tightly pressed in the first mounting hole by the first pressing plate 13, and the corresponding electric wire 4 is tightly pressed in the second mounting hole by the second pressing plate 21. At the same time, by providing the sharp parts 22 on the first pressing plate 13 and the second pressing plate 21, the insulation layer 42 of the electric wire 4 is pierced by the sharp parts 22, which is conducive to improving the connection strength between the electric wire 4 and the electric wire joint. When the electric wire 4 is pulled along the axis direction of the electric wire joint, the electric wire 4 is difficult to be pulled out under the action of the sharp parts 22, thereby ensuring the connection stability of the electric wire 4.

[0034] The second mounting hole and the hole wall of the second mounting hole are provided with an elastic layer 5. The elastic layer 5 is made of rubber material with certain elasticity, so as to increase the friction force between the electric wire joint and the electric wire 4, and avoid relative displacement between the electric wire 4 and the electric wire joint when the electric wire 4 is pulled. At the same time, since the elastic layer 5 and the insulation layer 42 of the electric wire 4 are tightly abutted with each other, the waterproof property of the electric wire joint is ensured, and water is prevented from entering the inside of the electric wire joint through the first mounting hole or the second mounting hole.

[0035] Specifically, the periphery of the second joint assembly 2 is recessed with an anti-skid groove. The anti-skid groove is located at the periphery of the second shell, so as to facilitate the rotation operation of the second shell.

[0036] The beneficial effects of the present application are: by arranging the conductive sheet 3 in the accommodating cavity 10, the conductive sheet 3 is wound in a spiral shape and encloses the mounting space. In use, two electric wires 4 are respectively inserted from the first mounting hole and the second mounting hole, and the two electric wires 4 are respectively inserted into the mounting space 31 from the two ends of the conductive sheet 3. By rotating the second joint assembly 2, the two ends of the conductive sheet 3 are relatively rotated and the conductive sheet 3 is tightened in the mounting space 31, so that the conductive sheet 3 is tightly clamped on the periphery of the electric wire 4. This structure makes the conductive sheet 3 have a larger contact surface with the electric wire 4, which is beneficial to improve the mechanical connection strength and electrical connection reliability between the two, and has the characteristics of stable connection and high circuit reliability.

[0037] The above is only the preferred embodiment of the present application. For those skilled in the art, according to the idea of the present application, the specific implementation and application range can be changed, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. A wire connector for connecting and fixing two wires and conducting a circuit, characterized in that, The device includes a first connector assembly and a second connector assembly. One end of the first connector assembly is threadedly connected to one end of the second connector assembly. The first connector assembly has a receiving cavity, and a conductive sheet is disposed within the receiving cavity. The conductive sheet is wound in a spiral shape around the axis of the receiving cavity, forming an installation space for accommodating the wire. One end of the conductive sheet is connected to the end of the receiving cavity opposite to the second connector assembly, and the other end of the conductive sheet is connected to the second connector assembly. The first connector assembly has a first mounting hole for passing the wire through, and the first mounting hole communicates with the installation space. The second connector assembly has a second mounting hole for passing the wire through, and the second mounting hole communicates with the installation space. Two wires can pass through the first mounting hole and the second mounting hole respectively and extend into the installation space. By rotating the second connector assembly, the conductive sheet is driven to tighten the installation space, so that the conductive sheet clamps the two wires. The outer diameter of the first connector assembly is equal to the outer diameter of the second connector assembly; The end of the first connector assembly facing away from the second connector assembly is conical, and the end of the second connector assembly facing away from the first connector assembly is also conical. An operation window is provided on the wall of the first mounting hole, and a first pressure plate is movably disposed in the operation window. The first pressure plate is used to press the corresponding wire. An operation window is provided on the wall of the second mounting hole, and a second pressure plate is movably disposed in the operation window. The second pressure plate is used to press the corresponding wire. Both the first pressure plate and the second pressure plate are provided with a plurality of spikes at intervals, the spikes being used to pierce the insulation layer on the corresponding wire; An elastic layer is provided on the wall of the first mounting hole and the second mounting hole.

2. The wire connector according to claim 1, characterized in that, The first connector assembly includes a first housing, and a connecting portion is provided at one end of the first housing facing the second connector assembly. The connecting portion is provided with an external thread, and one end of the second connector assembly is provided with an internal thread that is adapted to the external thread.

3. The wire connector according to claim 2, characterized in that, The first housing and the connecting part are integrally formed.

4. The wire connector according to any one of claims 1 to 3, characterized in that, The second connector assembly has a recessed anti-slip groove on its periphery.

5. The wire connector according to any one of claims 1 to 3, characterized in that, The conductive sheet is made of copper.

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