CN212412296U

CN212412296U - Quick connection structure of low-voltage short-circuit wire

Info

Publication number: CN212412296U
Application number: CN202021563615.2U
Authority: CN
Inventors: 周葵; 黄冕; 庹胜琦; 吴雅静; 刘佳琪; 韩笑; 陈圣书; 黄爱雄; 安睿; 徐珍子
Original assignee: Xingshan Power Supply Co of State Grid Hubei Electric Power Co Ltd
Current assignee: Xingshan Power Supply Co of State Grid Hubei Electric Power Co Ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-01-26
Anticipated expiration: 2030-07-31

Abstract

A quick connection structure of a low-voltage short-circuit wire comprises a terminal, two ends of which are respectively screwed with a first casing and a second casing. The quick-connection structure of the low-voltage short-circuit wire, through the arrangement of the terminal, the clamping device and the protective shell, inserts one end of the two wires into the terminal respectively, and turns the bolt to effectively clamp the connection, so that the first shell can be effectively clamped. The body and the second shell are threadedly connected to the terminal, which not only facilitates the quick connection of the wire by the staff, but also effectively protects the wire joint. When the external wire is accidentally pulled, the wire drives the spring to compress through the sleeve, and the unexpected pulling force can be effectively slowed down through the deformation of the spring compression, reducing the direct effect of the pulling force on the wire joint. The possibility of the connector falling off or the wire breaking occurs.

Description

Quick connection structure of low-voltage short-circuit wire

Technical Field

The utility model belongs to power supply unit and accessory equipment field especially relate to low pressure circuit technique, concretely relates to low pressure short-circuit connection's fast tying constructs.

Background

The low-voltage line comprises a low-voltage overhead line, a low-voltage overhead insulated line, a low-voltage cable line and an indoor distribution line, is used for directly transmitting electric energy to low-voltage electric equipment, and is an important component of a low-voltage distribution system. The low-voltage line can be accessed from a public low-voltage distribution network and is led out through a low-voltage distribution room; and the low-voltage power distribution device can also be led out from a transformer substation chamber of a user.

Patent document No. CN206922068U discloses a connection terminal, which includes a first housing, a second housing, an elastic piece, a first current bar and a second current bar, wherein the first housing and the second housing are connected by screw threads, one end of the elastic piece is inserted into the first housing, the other end of the elastic piece extends into the second housing, the first current bar and the second current bar are respectively inserted into the first housing and the second housing, and the first current bar and the second current bar are respectively and correspondingly connected to two ends of the elastic piece. The utility model provides a threaded connection between first casing and the second casing, first casing are concatenation formula structure, and the flexure strip is pegged graft in first casing, and is located first casing through spacing muscle, when extracting first electric current strip and second electric current strip from the flexure strip, the flexure strip can not transform the position along with breaking away from of electric current strip, and the fastening is effectual, and first electric current strip and second electric current strip are pegged graft on the flexure strip, the loading and unloading of being convenient for.

The applicant finds that when the wire is pulled by external force, the wire connection mechanism is easy to drop or break the connection winding of the wire, and the operation stability of the power line is affected.

The applicant has therefore proposed an improved wiring mechanism.

Disclosure of Invention

The utility model aims at solving the technical problem that the wire connected through the wiring mechanism meets the unintentional external force at both ends and pulls or the intentional damage formula external force pulls, causes breaking away from and damaging of junction easily, influences the stability of power line operation.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a quick connection structure of a low-voltage short connecting wire comprises a connecting terminal, a first shell and a second shell; one end of the first shell and one end of the second shell are connecting parts, and the other end of the first shell and the other end of the second shell are free ends; the first shell and the second shell form a shell component with a cavity structure after being connected at the connecting part, and a connecting terminal is arranged in the cavity structure and positioned at the connecting part of the first shell and the second shell; the free ends of the first shell and the second shell are provided with wire channels, and two ends of the wiring terminal are provided with wire slots; the connecting part of the first shell and the second shell is a structure which can be separated or folded and is fastened after being folded.

And wire fastening mechanisms are arranged at the wire slots at the two ends of the wiring terminal and used for fastening the wires after the wires are inserted into the wire slots.

The wire fastening mechanism comprises a bolt perpendicular to the wire slot, the bolt is in threaded connection with an opening in the side wall of the wire slot, and the end of the bolt can be in abutting contact with the side face of the wire.

Sliding plates are arranged on two sides of the wiring terminal and in the inner cavities of the first shell and the second shell respectively, and the sliding plates can move close to or far away from the wiring terminal; the wire guide channel is provided with a sleeve, and springs are arranged outside the sleeve and between the sliding plate and the free end of the first shell and between the sliding plate and the free end of the second shell.

An accommodating cavity is arranged between the sliding plate and the wiring terminal and can accommodate a lead with a certain length.

The side face of the sliding plate close to the free end of the first shell and the free end of the second shell is fixedly provided with a connecting block, one end of the sleeve is fixedly connected with the connecting block, the side wall of the other end of the sleeve is provided with a clamping device, and the clamping device can tightly support and fasten the wires in the sleeve.

The clamping device comprises an arc-shaped clamping plate, the upper surface of the arc-shaped clamping plate is movably connected with a threaded rod through a rotating shaft, the top end of the threaded rod is fixedly connected with a rotating block, and the inner arc surface of the arc-shaped clamping plate can support and fasten a wire in a sleeve.

Protective shells are arranged on the two outer sides of the first shell and the second shell and can seal the clamping device.

The protective shell is rotatably connected with the first shell and the second shell.

Compared with the prior art, the utility model discloses possess following technological effect:

the quick connection structure of the low-voltage short wire is characterized in that one end of each of two wires is respectively inserted into the wiring terminal through the arrangement of the wiring terminal, the first shell, the second shell, the sleeve, the clamping device, the protective shell and the like, the first shell and the second shell are in threaded connection with the wiring terminal through the arrangement of the structures such as the wiring terminal, the bolt is rotated to effectively clamp the wiring of the wiring terminal, so that the first shell and the second shell are convenient for workers to quickly connect the wires, and meanwhile, the wire joint can be effectively protected, the practicability of the device is improved, through the arrangement of the structures such as the clamping device, the spring, the sleeve, the sliding plate, the connecting block and the like, when an external wire is accidentally pulled, the wire drives the spring to compress through the sleeve, the accidental pulling force can be effectively reduced through the deformation of the spring, and the possibility of falling of the joint or breakage of the wire due to, the work of the staff is facilitated.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 4 is a schematic structural view of the clamping device of the present invention.

In the figure: 1. a wiring terminal; 2. a first housing; 3. a second housing; 4. a sliding plate; 5. connecting blocks; 6. a sleeve; 7. a spring; 8. a clamping device; 801. an arc-shaped splint; 802. a threaded rod; 803. rotating the block; 9. a wire; 10. a bolt; 11. and (4) a protective shell.

Detailed Description

As shown in fig. 1 to 4, a quick connection structure of a low-voltage short-circuit wire comprises a connection terminal 1, a first shell 2 and a second shell 3; one end of the first shell 2 and one end of the second shell 3 are connecting parts, and the other end is a free end; the first shell 2 and the second shell 3 form a shell component with a cavity structure after being connected at a connecting part, and a connecting terminal 1 is arranged in the cavity structure and positioned at the connecting part of the first shell 2 and the second shell 3; the free ends of the first shell 2 and the second shell 3 are provided with wire channels, and two ends of the wiring terminal 1 are provided with wire slots; the connecting part of the first shell 2 and the second shell 3 is a structure which can be separated or folded and is fastened after being folded.

And wire fastening mechanisms are arranged at the wire slots at the two ends of the wiring terminal 1 and are used for fastening wires after the wires are inserted into the wire slots.

The wire fastening mechanism comprises a bolt 10 perpendicular to the wire insertion slot, the bolt 10 is in threaded connection with an opening in the side wall of the wire insertion slot, and the end of the bolt 10 can be in abutting contact with the side face of the wire.

In order to reduce the influence on the wire when the wire is pulled by external force in use, sliding plates 4 are arranged on two sides of the wiring terminal 1 and respectively positioned in the inner cavities of the first shell 2 and the second shell 3, and the sliding plates 4 can move to approach the wiring terminal 1 or be far away from the wiring terminal 1; a sleeve 6 is arranged on the lead passage, and springs 7 are arranged outside the sleeve 6 and between the sliding plate 4 and the free end of the first shell 2 and between the sliding plate 4 and the free end of the second shell 3.

An accommodating cavity is arranged between the sliding plate 4 and the wiring terminal 1, and the accommodating cavity can accommodate a lead with a certain length.

The side face of the sliding plate 4 close to the free ends of the first shell 2 and the second shell 3 is fixedly provided with a connecting block 5, one end of the sleeve 6 is fixedly connected with the connecting block 5, the side wall of the other end of the sleeve is provided with a clamping device 8, and the clamping device 8 can tightly press and fasten the wires in the sleeve 6.

The specific structure of the clamping device comprises an arc-shaped clamping plate 801, a threaded rod 802 is movably connected to the upper surface of the arc-shaped clamping plate 801 through a rotating shaft, a rotating block 803 is fixedly connected to the top end of the threaded rod 802, and the inner arc surface of the arc-shaped clamping plate 801 can tightly press and fasten a lead in the sleeve 6.

Protective shells 11 are arranged on the two outer sides of the first shell 2 and the second shell 3, and the protective shells 11 can seal the clamping device 8.

The protective shell 11 is rotatably connected to the first housing 2 and the second housing 3, and further, a threaded connection structure may be adopted.

The following examples are offered for further understanding and implementation by those of ordinary skill in the art:

referring to fig. 1 to 4, a quick connection structure of a low-voltage short-circuit wire includes a connection terminal 1, two ends of the connection terminal 1 are respectively connected with a first housing 2 and a second housing 3 in a threaded manner, a sealing rubber ring is arranged at the threaded connection position of the first housing 2 and the second housing 3, and the sealing property of the connection position of the first housing 2 and the second housing 3 is improved by the arrangement of the sealing rubber ring;

one side of the first shell 2 and one side of the second shell 3 are both in threaded connection with a protective shell 11, and the protective shell 11 can effectively protect the clamping device 8;

one side of the protective shell 11 is provided with a waterproof rubber ring, the inner side walls of the first shell 1 and the second shell 3 are both connected with a sliding plate 4 through sliding chutes in a sliding manner, in the installation process of the device, a wire 9 with a certain length needs to be reserved on one side of the sliding plate 4, when an external wire 9 is accidentally pulled, the wire 9 drives the connecting block 5 and the sliding plate 4 to move through the sleeve 6, the spring 7 deforms through the movement of the connecting block 5, the pulling force on the wire 9 can be effectively reduced through the deformation generated by the spring 7, in the deformation generating process of the spring 7, the reserved wire 9 is stretched, and when the tension disappears and the spring 7 resets, a part of the reserved wire 9 resets;

one side fixedly connected with connecting block 5 of sliding plate 4, one side fixedly connected with sleeve pipe 6 of connecting block 5, spring 7 has been cup jointed on the surface of sleeve pipe 6, the one end fixed connection of spring 7 is in one side of connecting block 5, the quantity of spring 7 is two, two spring 7's the other end difference fixed connection is in the inner wall of first casing 2 and second casing 3, one side threaded connection of sleeve pipe 6 upper surface has clamping device 8, clamping device 8 includes arc splint 801, arc splint 801's upper surface has threaded rod 802 through pivot swing joint, threaded rod 802 threaded connection is in the inner wall of sleeve 6, the top fixedly connected with turning block 803 of threaded rod 802, binding post 1's both sides all have wire 9 through the wiring groove joint, the material of wire 9 is the electric wire of softer type, the equal threaded connection in both sides of binding post 1 upper surface has bolt 10.

The utility model discloses when using, adopt following step:

1) inserting the wires at two ends into the first shell 2 and the second shell 3 from two ends respectively, and inserting the end parts of the wires into the jacks at two ends of the wiring terminal 1 at the connecting part;

2) the wiring of the cable is effectively fastened and clamped through the bolt 10;

3) the lead 9 is clamped by the clamping device 8 in the sleeve 6, specifically, the rotating block 803 is rotated to drive the arc-shaped clamping plate 801 to move downwards through the threaded rod 802, so that one side of the arc-shaped clamping plate 801 is tightly attached to the surface of the lead 9, and the first shell 3 and the second shell 3 are connected to the wiring terminal 1 in a threaded manner;

4) then the protective shell 11 is rotated to be screwed on one side of the first shell 2 and the second shell 3 so as to protect the clamping device 8 and the sleeve 6;

the connection operation of the device is completed through the above steps.

Claims

1. A quick connection structure for low-voltage short-circuit wiring, characterized in that it comprises a terminal (1), a first housing (2), a second housing (3); the first housing (2), the second housing (2), the One end of the shell (3) is a connecting part, and the other end is a free end; after the first shell (2) and the second shell (3) are connected at the connecting part, a shell member with a cavity structure inside is formed, and the shell is formed in the cavity. A connection terminal (1) is provided in the body structure and located at the connection part of the first housing (2) and the second housing (3); the free ends of the first housing (2) and the second housing (3) are provided with There is a wire channel, and wire slots are provided at both ends of the terminal (1); the connecting part of the first casing (2) and the second casing (3) is a structure that can be separated or closed and fastened after being closed.

2. The quick-connect structure of low-voltage short-circuit wire according to claim 1, characterized in that: a wire fastening mechanism is provided at the wire slots at both ends of the terminal (1), and the wire fastening mechanism is used for the wire to be inserted into the wire socket. Tightening of the wire behind the slot.

3. The quick-connection structure for low-voltage short-circuit wires according to claim 2, wherein the wire fastening mechanism comprises a bolt (10) arranged perpendicular to the wire slot, and the bolt (10) is connected to the side of the wire slot. The opening of the wall is threaded, and the end of the bolt (10) can be in close contact with the side surface of the wire.

4. The quick connection structure of the low-voltage short-circuit wire according to claim 1 or 2, characterized in that: on both sides of the connection terminal (1) and respectively located in the first shell (2), the second shell (3) A sliding plate (4) is arranged in the inner cavity, and the sliding plate (4) can move close to the terminal (1) or away from the terminal (1); a sleeve (6) is arranged on the wire channel, and the sleeve A spring (7) is provided outside (6) and between the sliding plate (4) and the free end of the first casing (2), and between the sliding plate (4) and the free end of the second casing (3).

5 . The quick connection structure of low-voltage short-circuit wire according to claim 4 , characterized in that: a accommodating cavity is provided between the sliding plate ( 4 ) and the terminal ( 1 ), and the accommodating cavity can accommodate a certain length of wires .

6. The quick-connect structure of the low-voltage short-circuit cable according to claim 4, characterized in that: a connection is fixedly provided on the sides of the sliding plate (4) close to the free ends of the first casing (2) and the second casing (3). Block (5), one end of the sleeve (6) is fixedly connected with the connecting block (5), and the side wall of the other end is provided with a clamping device (8), The wires are tight and tight.

7 . The quick-connect structure for low-voltage short-circuit cables according to claim 6 , wherein the clamping device ( 8 ) comprises an arc-shaped splint ( 801 ), and the upper surface of the arc-shaped splint ( 801 ) is movably connected by a rotating shaft. 8 . There is a threaded rod (802), the top of the threaded rod (802) is fixedly connected with a rotating block (803), and the inner arc surface of the arc-shaped splint (801) can press and fasten the wire in the sleeve (6).

8. The quick connection structure of low-voltage short-circuit wire according to one of claims 5 to 7, characterized in that: protective shells (11) are provided on both outer sides of the first shell (2) and the second shell (3). ), the protective shell (11) can close the clamping device (8).

9 . The quick-connection structure for a low-voltage short-circuit cable according to claim 8 , wherein the protective casing ( 11 ) is rotatably connected to the first casing ( 2 ) and the second casing ( 3 ). 10 .