CN203398345U

CN203398345U - Improved ground wire

Info

Publication number: CN203398345U
Application number: CN201320355113.4U
Authority: CN
Inventors: 降春雷; 杨秀蓉; 赵军; 宋军; 王敏
Original assignee: State Grid Corp of China SGCC; State Grid Sichuan Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Sichuan Electric Power Co Ltd
Priority date: 2013-06-20
Filing date: 2013-06-20
Publication date: 2014-01-15
Anticipated expiration: 2023-06-20

Abstract

Provided is an improved ground wire. The improved ground wire comprises a wire clamp, an insulation rod and a ground wire and also comprises a bidirectional connecting piece, wherein the wire clamp is connected with the insulation rod through the bidirectional connecting piece, and the bidirectional connecting piece is movably connected with the wire clamp and the insulation rod in a rotating manner respectively. According to the improved ground wire, the bidirectional connecting piece is utilized so that the wire clamp and the insulation rod can realize angle rotation, and under the condition that a bus and a drainage wire are vertical, the insulation rod and the ground wire are enabled to be vertical to the ground, so that the stress distribution is improved, the wire clamp does not easily fallen off, the operation of the working personnel is facilitated, and the operation time and operation strength are reduced. The improved ground wire is also applied to such application occasions of a busbar, soft connection, a steel-cored aluminum strand wire, irregular wiring and the like.

Description

A kind of modified model earth connection

Technical field

The utility model belongs to mechanical field, relates to installation and the maintenance of power equipment, particularly a kind of modified model earth connection.

Background technology

The circuit breaker of part transformer station, isolating switch and other primary equipments, due to station equipment structural relation, circuit breaker is 90 degree wiring with the drainage thread that is connected of the equipment such as bus disconnecting link, is extremely inconvenient to install earth connection.

Existing earth connection is due to wire clamp and insulating bar employing fixed form joggle, and insulating bar is consistent with the trend of ground wire, so the angle between wire clamp and ground wire is fixed.After earth connection installing, owing to not forming and firmly contacting and fixed relationship between wire clamp and drainage thread, add earth connection own wt and insulating bar weight, cause the earth connection of installing to be easy to come off. after guaranteeing that earth connection is installed, be not easy to come off, insulating bar is intersected and overlayed on circuit breaker framework, but meeting under external force collision or breaker operator power, earth connection still will come off.

Utility model content

For overcoming in existing earth connection, between binding clip and insulating bar, can not adjust angle, make earth connection under the bus application scenario vertical with drainage thread hold caducous technological deficiency, the utility model provides a kind of modified model earth connection.

A kind of modified model earth connection described in the utility model, comprise wire clamp, insulating bar and ground wire, it is characterized in that, also comprise connection arrangement, described wire clamp is connected by connection arrangement with insulating bar, and described connection arrangement is rotatable flexible connection with wire clamp and insulating bar.

Preferably, described connection arrangement upper end has reentrant cylindrical cavity, in described reentrant cylindrical cavity, have internal thread, described wire clamp is with the link of connection arrangement for to become the threaded post of matched in clearance with reentrant cylindrical cavity, and the external screw thread of described threaded post coordinates with described internal screw thread form.

Concrete, described ground wire is connected to the link of wire clamp and connection arrangement.

Preferably, there is rectangular recess described connection arrangement lower end, described insulating bar has with the link of connection arrangement the plate coordinating with rectangular recess, and described plate and rectangular recess sidewall have identical bolt hole, and described insulating bar and connection arrangement are bolted.

Preferably, the link of described insulating bar and connection arrangement and plate thereof are stainless steel and make.

Preferably, described connection arrangement is that stainless steel is made.

Adopt modified model earth connection described in the utility model, adopt connection arrangement to make binding clip and insulating bar can realize angle rotation, can in the situation that bus is vertical with drainage thread, make insulating bar and ground wire perpendicular to ground, improved the distribution of force of wire clamp, make wire clamp difficult drop-off, convenient working personnel operation, shortens the operating time and reduces manipulation strength.The utility model is also applicable to as bus bar, is flexible coupling, steel reinforced aluminium conductor, irregular wiring Deng application scenario.

Accompanying drawing explanation

Fig. 1 illustrates a kind of embodiment schematic diagram of the utility model.

In each figure, Reference numeral name is called: the link of 1-insulating bar 2-wire clamp 3-ground wire 4-connection arrangement 5-plate 6-insulating bar and connection arrangement.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.

Provide as shown in Figure 1 a kind of embodiment of the utility model, comprise wire clamp 2, insulating bar 1 and ground wire 3, also comprise connection arrangement 4, described wire clamp is connected by connection arrangement with insulating bar.Described connection arrangement is rotatable flexible connection with wire clamp and insulating bar.

Adopt connection arrangement to be connected with wire clamp with insulating bar, make wire clamp and the connection arrangement can the anglec of rotation, connection arrangement is also rotatable flexible connection with insulating bar simultaneously, the two rotates cooperation, and the angle of insulating bar and wire clamp can be changed in a big way, is applicable to use in the situation that bus is vertical with drainage thread, make wire clamp clamp drainage thread with horizontal direction, insulating bar and ground wire, perpendicular to ground, have improved distribution of force simultaneously, make wire clamp difficult drop-off.

Connection arrangement can adopt various ways with being rotatably connected of insulating bar and wire clamp, and the utility model connects a kind of implementation that is rotatably connected that can independently implement is separately provided respectively two places.

Connected mode for connection arrangement and wire clamp, described connection arrangement upper end has reentrant cylindrical cavity, in described reentrant cylindrical cavity, there is internal thread, described wire clamp is with the link of connection arrangement for to become the threaded post of matched in clearance with reentrant cylindrical cavity, the external screw thread of described threaded post coordinates with described internal screw thread form.The reentrant cylindrical cavity and the threaded post that adopt internal and external threads to coordinate, make the adjustment angle that connection arrangement and wire clamp can be stable, and after adjusting, this angle is not easy variation, and the connected mode bonding strength of threaded post is higher, and it is firm to connect.Described ground wire can be connected to the link of wire clamp and connection arrangement.

Connected mode for connection arrangement and insulating bar, there is rectangular recess described connection arrangement lower end, described insulating bar has with the link 6 of connection arrangement the plate 5 coordinating with rectangular recess, described plate and rectangular recess sidewall have identical bolt hole, and described insulating bar and connection arrangement are bolted.Adopt rectangular recess and plate to be connected, by bolt adjusting elasticity degree, it is the anglec of rotation of adjustable insulating bar and connection arrangement, it is more accurate that this mode is adjusted angle value, because direction of rotation and aforesaid threaded post are adjusted angular way not in same direction, therefore the two is used in conjunction with, and can all can realize angle adjustment in a big way at three-dimensional.

Preferably, described connection arrangement is that stainless steel is made.

Above-mentioned parts adopt stainless steel to improve the mechanical strength of rotating part, and have strengthened useful life.

Previously described is each preferred embodiment of the present utility model, preferred implementation in each preferred embodiment is if not obviously contradictory or take a certain preferred implementation as prerequisite, each preferred implementation arbitrarily stack combinations is used, design parameter in described embodiment and embodiment is only the utility model proof procedure for clear statement utility model inventor, not in order to limit scope of patent protection of the present utility model, scope of patent protection of the present utility model is still as the criterion with its claims, the equivalent structure that every utilization specification of the present utility model and accompanying drawing content are done changes, in like manner all should be included in protection range of the present utility model.

Claims

1. a modified model earth connection, comprise wire clamp (2), insulating bar (1) and ground wire (3), it is characterized in that, also comprise connection arrangement (4), described wire clamp (2) is connected by connection arrangement (4) with insulating bar (1), and described connection arrangement (4) is rotatable flexible connection with wire clamp (2) and insulating bar (1).

2. modified model earth connection as claimed in claim 1, it is characterized in that, described connection arrangement (4) upper end has reentrant cylindrical cavity, in described reentrant cylindrical cavity, there is internal thread, described wire clamp (2) is with the link of connection arrangement (4) for to become the threaded post of matched in clearance with reentrant cylindrical cavity, the external screw thread of described threaded post coordinates with described internal screw thread form.

3. modified model earth connection as claimed in claim 2, is characterized in that, described ground wire (3) is connected to the link of wire clamp and connection arrangement.

4. modified model earth connection as claimed in claim 1 or 2, it is characterized in that, there is rectangular recess described connection arrangement lower end, described insulating bar has with the link (6) of connection arrangement the plate (5) coordinating with rectangular recess, described plate (5) and rectangular recess sidewall have identical bolt hole, and described insulating bar and connection arrangement are bolted.

5. modified model earth connection as claimed in claim 4, is characterized in that, the link of described insulating bar and connection arrangement (6) and plate (5) thereof are stainless steel and make.

6. modified model earth connection as claimed in claim 1, is characterized in that, described connection arrangement (4) is made for stainless steel.