CN111478068B

CN111478068B - Wire terminal

Info

Publication number: CN111478068B
Application number: CN202010340646.XA
Authority: CN
Inventors: 邝凡
Original assignee: Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2021-06-29
Anticipated expiration: 2040-04-26
Also published as: CN111478068A

Abstract

The invention relates to an electric wire joint, which is used for connecting two electric wires and comprises a joint body, a connecting assembly and a rotating piece, wherein the joint body is provided with a first communicating hole penetrating through two end faces of the joint body, the connecting assembly is arranged in the first communicating hole in a penetrating manner, the connecting assembly comprises two abutting parts arranged at intervals, a conductive part is arranged between the two abutting parts, the abutting parts are provided with second communicating holes, the two electric wires respectively penetrate through the two second communicating holes and are connected with the conductive part, the rotating piece is annularly arranged on the periphery of the abutting parts, the rotating piece is in threaded connection with the first communicating hole, the abutting parts can be extruded by. The electric wire connector realizes the conduction of the electric wire by arranging the conductive part between the two abutting parts and connecting the electric wire with the conductive part through the second communicating hole, and the abutting parts are extruded by the rotating part to ensure that the second communicating hole contracts along the radial direction, thereby realizing the clamping of the electric wire. Has the characteristics of convenient operation, good connection performance and good waterproof performance.

Description

Wire terminal

Technical Field

The invention relates to the technical field of power equipment, in particular to an electric wire connector.

Background

In circuit construction, two wires are usually butted. In the prior art, the method that is mostly adopted is to tear off the insulating layer on the electric wires to expose the internal wires, then to wind the wires of the two electric wires together, and finally to wrap the wires with adhesive tapes. The method is complex to operate and low in safety, the adhesive tape used for insulating wrapping can loosen or fall off after being used for a long time, and water seepage, electric leakage and the like are easy to occur at the joint, so that safety accidents are easy to cause.

Therefore, a special wire connector is needed, which is convenient to operate and high in safety, has good connection stability, and is waterproof and anti-creeping.

Disclosure of Invention

The invention aims to provide an electric wire connector which has the characteristics of convenience in operation, good connection performance and good waterproof performance.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a pair of wire joint for connect two electric wires, including joint body, coupling assembling and rotation piece, the joint body is provided with the first intercommunicating pore that runs through its both ends face, coupling assembling wears to locate in the first intercommunicating pore, coupling assembling includes the butt portion that two intervals set up, two be provided with the conductive part between the butt portion, butt portion is provided with the second intercommunicating pore, two the electric wire passes two respectively the second intercommunicating pore and with the conductive part is connected, it locates to rotate the piece ring the week portion of butt portion, rotate the piece with first intercommunicating pore threaded connection, through rotating the piece can extrude butt portion, and make butt portion presss from both sides tightly the electric wire.

Further, butt portion includes the rubber ring, the second intercommunicating pore is seted up on the rubber ring, the week portion ring of rubber ring is equipped with two at least briquetting, and adjacent two have the clearance between the briquetting, works as it extrudes to rotate the piece when butt portion, the rubber ring can take place deformation and extend to in the clearance.

Furthermore, the abutting portion and the first communicating hole are bonded through an adhesive layer, and when the rotating member presses the abutting portion, the adhesive layer can be broken, so that the abutting portion is separated from the first communicating hole.

Furthermore, the briquetting face a side of rubber ring is provided with puncture portion, puncture portion inlays to be located the rubber ring, works as it extrudes to rotate the piece during butt portion, puncture portion can with the insulating layer butt of electric wire, perhaps puncture portion can insert the insulating layer.

Furthermore, the first end of the rotating part is in threaded connection with the first communicating hole, the second end of the rotating part is provided with a screwing part, and the screwing part is provided with a plurality of anti-skidding grooves.

Further, the rotation piece is provided with and runs through the first end with the mounting hole of second end, butt portion with the mounting hole is pegged graft, follows the first end extremely the second end, the aperture of mounting hole is from big to little continuous variation.

Further, the number of the conductive portions is plural, and the plural conductive portions are uniformly distributed along the circumferential direction of the abutting portion.

Further, the conductive part comprises a first conductive sheet and a second conductive sheet which are stacked, the first conductive sheet and the second conductive sheet are respectively provided with a first bending section and a second bending section, the first bending section and the second bending section are symmetrically arranged, the first bending section is used for being abutted against the first connecting hole, and the second bending section is used for being abutted against the electric wire.

Furthermore, a groove is formed in one side face, close to the electric wire, of the second bending section, and the electric wire is abutted to the groove.

Furthermore, a partition plate is arranged in the first through hole, the first conducting plate and the second conducting plate penetrate through the partition plate, two second bending sections are arranged on two sides of the partition plate respectively, and the two second bending sections are abutted to the electric wires respectively.

Compared with the prior art, the invention has the beneficial effects that:

the electric wire connector of the invention realizes the conduction of the electric wire by arranging the conductive part between the two abutting parts, the electric wire passes through the second communicating hole and is connected with the conductive part, the abutting part is provided with the rotating part, the rotating part is connected with the first communicating hole in a threaded manner, and the abutting part is extruded by the movement of the rotating part, so that the second communicating hole is contracted along the radial direction, and the clamping of the electric wire is realized. Has the characteristics of convenient operation, good connection performance and good waterproof performance.

Drawings

Fig. 1 is a sectional view of a wire terminal of an embodiment.

Fig. 2 is a side view of the abutment of the embodiment.

Fig. 3 is a sectional view of a wire terminal according to another embodiment.

In the figure:

1. a connector body; 10. a first communication hole; 11. a partition plate; 2. an abutting portion; 20. a rubber ring; 21. briquetting; 22. a second communication hole; 3. a conductive portion; 31. a first curved section; 32. a second curved section; 4. a rotating member; 5. an electric wire.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 3, the present invention provides an electric wire terminal for connecting two electric wires 5, including a terminal body 1, a connecting assembly and a rotating member 4, wherein the terminal body 1 is provided with a first through hole 10 penetrating through two end surfaces thereof, the connecting assembly is inserted into the first through hole 10, the connecting assembly includes two abutting portions 2 arranged at an interval, a conductive portion 3 is arranged between the two abutting portions 2, the abutting portions 2 are provided with second through holes 22, the two electric wires 5 respectively penetrate through the two second through holes 22 and are connected with the conductive portion 3, the rotating member 4 is annularly arranged on a peripheral portion of the abutting portions 2, the rotating member 4 is in threaded connection with the first through hole 10, the abutting portions 2 can be pressed by rotating the rotating member 4, and the abutting portions 2 can. In this embodiment, the joint body 1, the abutting portion 2, and the rotating member 4 are made of an insulating material, the conductive portion 3 is a conductor, and the conductive portion 3 is used to conduct two electric wires 5. The first through hole 10 on the connector body 1 is used for installing the connecting assembly and the rotating part 4, the abutting part 2 has elasticity, the abutting part 2 is provided with the second through hole 22, the second through hole 22 and the first through hole 10 are coaxially arranged, the rotating part 4 is in threaded connection with the first through hole 10, the rotating part 4 can move along the axial direction of the first through hole 10 by rotating, the abutting part 2 can be extruded when the rotating part 4 moves, the second through hole 22 can shrink along the radial direction of the second through hole, and the electric wire 5 can be clamped. Meanwhile, the second communication hole 22 is contracted, so that the hole wall of the second communication hole 22 is tightly abutted to the outer wall of the electric wire 5, and a waterproof effect is achieved. When the electric wire clamping device is used, the insulating layers of the end parts of the two electric wires 5 are removed to expose the conducting wires, the two electric wires 5 are respectively inserted into the corresponding second communication holes 22, the conducting wires are abutted with the conducting parts 3 to realize electric connection, and finally, the rotating part 4 is rotated to press the abutting part 2 to enable the abutting part 2 to clamp the electric wires 5. The structure realizes the conduction of the electric wire 5 by arranging the conductive part 3 between the two abutting parts 2, the electric wire 5 passes through the second communicating hole 22 and is connected with the conductive part 3, the rotating part 4 is arranged on the abutting parts 2, the rotating part 4 is in threaded connection with the first communicating hole 10, the abutting parts 2 are extruded by the movement of the rotating part 4, the second communicating hole 22 is contracted along the radial direction, and the clamping of the electric wire 5 is further realized. Has the characteristics of convenient operation, good connection performance and good waterproof performance.

Specifically, the abutting portion 2 includes a rubber ring 20, the second communication hole 22 is opened on the rubber ring 20, at least two pressing blocks 21 are annularly arranged on the circumference of the rubber ring 20, a gap is provided between two adjacent pressing blocks 21, and when the rotating member 4 presses the abutting portion 2, the rubber ring 20 can be deformed and extend into the gap. It is understood that the rubber ring 20 is made of rubber and has ductility. The rubber ring 20 may deform when subjected to a compressive force and extend in a direction in which the force is weak or unstressed. In this embodiment, referring to fig. 2, the rubber ring 20 is provided with second communication holes 22 penetrating through two end surfaces thereof, three pressing blocks 21 are annularly provided on an outer wall of the rubber ring 20 along a circumferential direction of the second communication holes 22, a cross section of each pressing block 21 is in a sector ring shape, and one end of each pressing block 21 close to the rubber ring 20 is embedded in the rubber ring 20. One side surface of the pressing block 21 away from the rubber ring 20 abuts against the rotating member 4, and a gap is formed between two adjacent pressing blocks 21, so that when the pressing blocks 21 are pressed by the rotating member 4, the pressing blocks 21 can move towards the axial direction of the second communication hole 22. At this time, the distance between two adjacent pressing blocks 21 is reduced, and one side surface of the pressing block 21 close to the rubber ring 20 tends to be attached to the electric wire 5, so that the electric wire 5 is pressed. When the rubber ring 20 is pressed, a part of the rubber ring 20 extends into the gap between two adjacent pressing blocks 21 to fill the gap. This structure can compress tightly fixedly to electric wire 5, has good water-proof effects simultaneously. Of course, in other embodiments, the specific number of the pressing pieces 21 may be flexibly selected according to the aperture size of the second communication hole 22.

Specifically, the abutting portion 2 and the first communication hole 10 are bonded by an adhesive layer, and when the rotating member 4 presses the abutting portion 2, the adhesive layer can be broken to separate the abutting portion 2 from the first communication hole 10. In this embodiment, through setting up the adhesive linkage, be favorable to fixing in advance coupling assembling, make things convenient for electric wire 5 to insert second intercommunicating pore 22. The adhesive layer may be a low viscosity glue or a low strength connector, so that the abutment portion 2 may be separated from the first communication hole 10 when the abutment portion 2 is pressed.

Specifically, the presser piece 21 is provided with a piercing portion on a side surface facing the rubber ring 20, the piercing portion is fitted into the rubber ring 20, and when the rotating member 4 presses the abutting portion 2, the piercing portion can abut against the insulating layer of the electric wire 5 or the piercing portion can be inserted into the insulating layer. In this embodiment, the piercing part is a sharp-topped thorn-like structure, and the top thereof is used for piercing the rubber ring 20 and the insulation layer of the electric wire 5. By providing the piercing part, the connection strength between the electric wire 5 and the abutting part 2 is improved, and the electric wire 5 is prevented from sliding due to the axial tension thereof.

Specifically, the first end of the rotating member 4 is in threaded connection with the first communication hole, and the second end of the rotating member 4 is provided with a screwing portion provided with a plurality of anti-slip grooves. In this embodiment, the first end of the rotating member 4 is provided with an external thread, the first communicating hole 10 is provided with an internal thread matched with the external thread, and the first end of the rotating member 4 is inserted into the first communicating hole 10 and is in threaded connection. The second end of the rotating part 4 is located outside the first communication hole 10, and the rotating part 4 is provided with a screwing part, so that an operator can conveniently rotate the rotating part 4.

Specifically, the rotating member 4 is provided with a mounting hole penetrating through the first end and the second end, the abutting portion 2 is inserted into the mounting hole, and the aperture of the mounting hole is continuously changed from large to small from the first end to the second end. In this embodiment, the abutting portion 2 is inserted into the mounting hole, and the pressing block 21 abuts against the hole wall of the mounting hole. From the first end to the second end, the aperture of the mounting hole changes from large to small continuously, so that an included angle is formed between the hole wall of the mounting hole and the axis of the mounting hole. It is also understood that the wall thickness of the rotor 4 becomes progressively thicker from the first end to the second end. When the rotating member 4 is rotated, the rotating member 4 moves towards the inside of the first communicating hole 10, and since the rotating member 4 becomes thicker gradually from the first end to the second end, the distance between the abutting portion 2 and the first communicating hole 10 is gradually increased, and then pressure is applied to the abutting portion 2 in the radial direction, so that the pressing block 21 moves towards the axial direction of the second communicating hole 22, and the pressing of the electric wire 5 is realized.

Specifically, the number of conductive portions 3 is plural, and the plural conductive portions 3 are uniformly distributed along the circumferential direction of the abutting portion 2. It is understood that providing a plurality of conductive portions 3 increases the contact area between the electric wire 5 and the conductive portions 3, and improves the reliability of the electrical connection therebetween. In the present embodiment, the number of the conductive portions 3 is three, and both ends of the conductive portions 3 are fixed to the corresponding press blocks 21, respectively.

Specifically, referring to fig. 1, the conductive part 3 includes a first conductive sheet and a second conductive sheet which are stacked, the first conductive sheet and the second conductive sheet are respectively provided with a first bent section 31 and a second bent section 32, the first bent section 31 and the second bent section 32 are symmetrically arranged, the first bent section 31 is used for abutting against the first connection hole 10, and the second bent section 32 is used for abutting against the two electric wires 5. In this embodiment, the first conductive sheet and the second conductive sheet are copper sheets, the first bending section 31 and the second bending section 32 are disposed on the two conductive sheets, and the first bending section 31 and the second bending section 32 are respectively bent in opposite directions, so that the first bending section 31 and the second bending section 32 can be respectively abutted to the first through hole 10 and the electric wire 5. When the rotating member 4 moves into the first through hole 10, the abutting portions 2 are also subjected to extrusion force along the axial direction, the two abutting portions 2 approach each other under the action of the axial extrusion force, and at this time, the first bending section 31 and the second bending section 32 deform due to the pressure, so that the first bending section 31 and the second bending section 32 are tightly pressed on the inner wall of the first through hole 10 and the electric wire 5, and the improvement of the connection stability between the electric wire 5 and the conductive portion 3 is facilitated.

Specifically, a side surface of the second bent section 32 close to the electric wire 5 is provided with a groove, and the electric wire 5 abuts against the groove. It can be understood that the provision of the groove is beneficial to increase the contact area between the second conductive sheet and the electric wire 5, and the connection stability between the second conductive sheet and the electric wire 5 can be improved.

In another embodiment, referring to fig. 3, a partition 11 is disposed in the first through hole 10, the first conductive sheet and the second conductive sheet are both disposed through the partition 11, there are two second bending sections 32, the two second bending sections 32 are respectively disposed on two sides of the partition 11, and the two second bending sections 32 are respectively abutted to the two electric wires 5. In this embodiment, the partition 11 is a conductor, two second bending sections 32 are located on two sides of the partition 11, and the first bending section 31 and the second bending section 32 are correspondingly disposed. The two electric wires 5 are inserted from both ends of the first communication hole 10, respectively, and pass through the second communication hole 22 to abut against the partition plate 11, and the second bent sections 32 abut against the corresponding electric wires 5, respectively. The two electric wires 5 of this structure are respectively abutted with the corresponding second bending sections 32, and poor connection caused by surface defects or position errors of the electric wires 5 when the two electric wires 5 are simultaneously abutted with one second bending section 32 can be avoided. In the present embodiment, the second bending sections 32 are disposed on two sides of the partition 11 for abutting against the corresponding electric wires 5, so as to realize the electric paths of the two electric wires 5, and the connection stability thereof can be further improved.

The remarkable effects of the embodiment are as follows: the electric wire 5 is conducted by providing the conductive portion 3 between the two abutting portions 2, and the electric wire 5 passes through the second communication hole 22 and is connected to the conductive portion 3, and the rotating member 4 is provided on the abutting portion 2, and the rotating member 4 is screwed to the first communication hole 10, and the abutting portion 2 is pressed by the movement of the rotating member 4, so that the second communication hole 22 is contracted in the radial direction, and the clamping of the electric wire 5 is realized. Has the characteristics of convenient operation, good connection performance and good waterproof performance.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. An electric wire joint is used for connecting two electric wires and is characterized by comprising a joint body, a connecting assembly and a rotating piece, wherein the joint body is provided with a first communicating hole penetrating through two end faces of the joint body, the connecting assembly penetrates through the first communicating hole, the connecting assembly comprises two abutting parts arranged at intervals, a conductive part is arranged between the two abutting parts, the abutting parts are provided with second communicating holes, the two electric wires respectively penetrate through the two second communicating holes and are connected with the conductive part, the rotating piece is annularly arranged on the peripheral part of the abutting parts, the rotating piece is in threaded connection with the first communicating hole, the abutting parts can be extruded by rotating the rotating piece, and the abutting parts clamp the electric wires;

the plurality of conductive parts are uniformly distributed along the circumferential direction of the abutting part;

the conductive part comprises a first conductive sheet and a second conductive sheet which are stacked, wherein the first conductive sheet and the second conductive sheet are respectively provided with a first bending section and a second bending section, the first bending section and the second bending section are symmetrically arranged, the first bending section is used for being abutted against the first connecting hole, and the second bending section is used for being abutted against the electric wire.

2. The wire terminal according to claim 1, wherein the abutting portion includes a rubber ring, the second communication hole is opened in the rubber ring, at least two pressing pieces are provided around a peripheral portion of the rubber ring, a gap is provided between two adjacent pressing pieces, and when the rotating member presses the abutting portion, the rubber ring can be deformed and extended into the gap.

3. The wire terminal according to claim 2, wherein the abutting portion and the first communication hole are bonded by an adhesive layer, and when the rotating member presses the abutting portion, the adhesive layer is breakable to separate the abutting portion from the first communication hole.

4. The wire terminal according to claim 2, wherein a piercing portion is provided on a side surface of the pressing block facing the rubber ring, the piercing portion is fitted to the rubber ring, and when the rotating member presses the abutting portion, the piercing portion can abut against an insulating layer of the electric wire or the piercing portion can be inserted into the insulating layer.

5. The wire terminal according to claim 1, wherein a first end of the rotating member is screw-coupled to the first communication hole, and a second end of the rotating member is provided with a screw portion provided with a plurality of anti-slip grooves.

6. The wire terminal according to claim 5, wherein the rotating member is provided with a mounting hole penetrating the first end and the second end, the abutting portion is fitted in the mounting hole, and the diameter of the mounting hole changes continuously from large to small from the first end to the second end.

7. The wire terminal according to claim 1, wherein a groove is provided in a side surface of the second bent section adjacent to the wire, and the wire abuts against the groove.

8. The wire joint according to claim 1, wherein a partition is disposed in the first through hole, the first conductive plate and the second conductive plate are both inserted into the partition, two of the second bending sections are respectively disposed on two sides of the partition, and the two second bending sections are respectively abutted to the two wires.