CN201638948U

CN201638948U - Throw-pull earth wire for transmission line

Info

Publication number: CN201638948U
Application number: CN 201020102118
Authority: CN
Inventors: 杨春雷; 杨学杰; 王爱华; 翟建; 孙晓斌; 蒋磊; 盛德琦; 乔敏东; 李宋林; 周勇; 丁宁; 李龙远
Original assignee: Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date: 2010-01-27
Filing date: 2010-01-27
Publication date: 2010-11-17
Anticipated expiration: 2020-01-27

Abstract

The utility model relates to a throw-pull earth wire for a transmission line, which comprises a lead end wire clamp for hitching the transmission line, an earth terminal fixing clamp fastened on the ground, an earth short circuit line connected with the earth terminal fixing clamp and an insulating rope connected on the lead end wire clamp and is characterized in that the front end of a right clamping block of the lead end wire clamp is in compression connection with the earth short circuit line, while the tail end of the right clamping block thereof is connected with the insulating rope; the compression joint of the earth short circuit line is fixed with an inverted hook; the insulating rope is fixed with a hanging ring; and the tail end of a left clamping block of the lead end wire clamp is provided with a balance weight block. The original drive-in earth wire is changed into the throw-pull earth wire so that the throw-pull earth wire greatly improves success rate of hitching the earth wire, shortens the hitching time, reduces labor intensity of maintenance personnel, has simple and convenient operation and has more obvious hitching effect under the condition of the large rotation degree.

Description

A kind of transmission line is thrown pull-type earth connection

Technical field

The utility model provides a kind of transmission line to throw pull-type earth connection, belongs to power transmission lines overhauling ground protection instrument.

Background technology

Earth connection is the security tool that often uses during electric power safety is produced; power failure, electrical verification, hanging earthing conductor are the important technique measure that guarantees transmission line interruption maintenance safety; being that the protection staff prevents the reliable and secure measure of incoming call suddenly in the job site, is the important assurance of staff's personal safety and device security.All the time, the installing earth connection all is the emphasis in the line outage work, particularly in recent years, progressively application along with the straight line pole synthetic insulator, the traditional thread binding numerously work of establishing concentrates on the strain insulator shaft tower, and the initial shaft tower of circuit and strain insulator shaft tower mostly are angle pole, so the installing of the interior angle side of angle pole has just become the difficult point in the installing earth connection process.

The earth connection of widespread usage is comparatively single in the existing transmission line, in reality maintenance and track remodelling construction, earth connection is generally direct-insert and articulates, but this connected mode exists certain defective: when the conductor wire end wire clamp can be finished articulating of earth connection during vertically over against lead fast, but when the overhead line structures corner number of degrees are big, the conductor wire end wire clamp is difficult to aim at lead, and the hookup time of earth connection is prolonged, and has a strong impact on finishing of service work; And the electric pressure of stepping on the bar work high above the ground is high more, the distance of earth point and lead is also big more, the overhead line structures corner number of degrees are also big more, the work high above the ground personnel just are not easy to finish articulating of earth connection more, hookup time is long more, and labour intensity is big more, causes muscular fatigue to cause danger easily, particularly the high-altitude falling accident very easily takes place in the operating personnel of shaft tower.Because the earth connection suspension time is long, active section can not get protection, and other working group also can't start working, and will influence job schedule and incur loss through delay the activity duration.

The utility model content

According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of and articulate the efficient height, transmission line simple to operate, that can reduce maintainer's labour intensity is greatly thrown pull-type earth connection.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of transmission line is thrown pull-type earth connection, comprise the conductor wire end wire clamp that articulates power transmission line, be fastened on ground earth terminal geometrical clamp, the ground short circuit line that is connected with the earth terminal geometrical clamp and be connected insulation rope on the conductor wire end wire clamp, it is characterized in that: the right fixture block front end crimping ground short circuit line of conductor wire end wire clamp, tail end connects the insulation rope, the ground short circuit line pressure place of connecing is fixed with hook, is fixed with link on the insulation rope.

The left fixture block tail end of described conductor wire end wire clamp is equipped with balancing weight, when throwing the hanging earthing conductor device, can guarantee that the fixture block that has balancing weight simultaneously lands, thereby make grounding wire device be in poised state like this, and the folder mouthful easy lead of aiming at conveniently articulates.

Described hook and link constitute throwing jointly and draw hanging device, and the distance between link and the right fixture block tail end is not less than the distance of hook and right fixture block tail end, articulates to guarantee that hook is corresponding with link.

Operation principle and process:

The utility model adopts throws pull-type principle, is about to earth connection and throws near the lead, and the ground short circuit line of pulling back then enters in the conductor wire end wire clamp lead, thereby finishes articulating of earth connection.The concrete course of work is as follows: two fixture blocks of conductor wire end wire clamp are opened and with supporting the pin support, making it not can auto-closing, the maintainer is on shaft tower during operation, link on the insulation rope is articulated on the hook, then the ground short circuit line is thrown to lead even farther place, the ground short circuit line of pulling back makes conductor wire end wire clamp folder mouthful close lead, when the support pin touches lead, conductor wire end wire clamp auto-closing is clamped lead, thereby finishes articulating of earth connection; Remove transmission line and throw pull-type earth connection, make the insulation rope lax earlier, link is deviate from hook, the stress point of insulation this moment rope is transferred to insulation rope crimping place of lead short-term folder, draw the insulation rope to make conductor wire end wire clamp folder mouth down a little, impose pulling force then, lead is deviate from from the conductor wire end wire clamp, can finish the dismounting work that transmission line is thrown pull-type earth connection.

The beneficial effect that the utility model had is: provide a kind of transmission line to throw pull-type earth connection, by being changed into, original direct-insert earth connection throws pull-type earth connection, improved the success rate of ground wire hitching greatly, shortened hookup time, reduced maintainer's labour intensity, simple to operation, it is more obvious to articulate effect under the big situation of the corner number of degrees.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Among the figure: 1, earth terminal geometrical clamp; 2, ground short circuit line; 3, insulation rope; 4, right fixture block; 5, hook; 6, link; 7, left fixture block; 8, balancing weight; 9, support pin.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described further:

As shown in Figure 1, the utility model comprises the conductor wire end wire clamp that articulates power transmission line, be fastened on ground earth terminal geometrical clamp 1, ground short circuit line 2 that is connected with earth terminal geometrical clamp 1 and the insulation rope 3 that is connected on the conductor wire end wire clamp, the front end crimping ground short circuit line 2 of the right fixture block 4 of conductor wire end wire clamp, tail end connects insulation rope 3,2 crimping place of ground short circuit line are fixed with hook 5, be fixed with link 6 on the insulation rope 3, hook 5 is thrown with link 6 common formations and is drawn hanging device, distance between link 6 and right fixture block 4 tail ends is not less than the distance of hook 5 and right fixture block 4 tail ends, left fixture block 7 tail ends of conductor wire end wire clamp are equipped with balancing weight 8, like this when throwing the hanging earthing conductor device, can guarantee that left fixture block 7 one sides that have balancing weight 9 land, thereby make grounding wire device be in poised state, the folder mouthful easy lead of aiming at conveniently articulates.

Operation principle and process:

The utility model adopts throws pull-type principle, is about to grounding wire device and throws near the lead, and the ground short circuit line 2 of pulling back then sandwiches in the conductor wire end wire clamp lead, thereby finishes articulating of earth connection.The concrete course of work is as follows: two fixture blocks of conductor wire end wire clamp are opened and with supporting pin 9 supports, making it not can auto-closing, the maintainer is on shaft tower during operation, link 6 on the insulation rope 3 is articulated on the hook 5, then ground short circuit line 2 is thrown to lead even farther place, the ground short circuit line 2 of pulling back makes conductor wire end wire clamp folder mouthful close lead, when support pin 9 touches lead, conductor wire end wire clamp auto-closing is clamped lead, thereby finishes articulating of earth connection; Remove transmission line and throw pull-type earth connection, make insulation rope 3 lax earlier, link 6 is deviate from hook 5, the stress point of insulation this moment rope 3 is transferred to insulation rope crimping place of lead short-term folder, draw insulation rope 3 to make conductor wire end wire clamp folder mouth down a little, impose pulling force then, lead is deviate from from the conductor wire end wire clamp, can finish the dismounting work that transmission line is thrown pull-type earth connection.

Claims

1. a transmission line is thrown pull-type earth connection, comprise the conductor wire end wire clamp that articulates power transmission line, be fastened on ground earth terminal geometrical clamp (1), the ground short circuit line (2) that is connected with earth terminal geometrical clamp (1) and be connected insulation rope (3) on the conductor wire end wire clamp, it is characterized in that: right fixture block (4) the front end crimping ground short circuit line (2) of conductor wire end wire clamp, tail end connects insulation rope (3), ground short circuit line (2) crimping place is fixed with hook (5), is fixed with link (6) on the insulation rope (3).

2. a kind of transmission line according to claim 1 is thrown pull-type earth connection, it is characterized in that: left fixture block (7) tail end of described conductor wire end wire clamp is equipped with balancing weight (8).

3. a kind of transmission line according to claim 1 is thrown pull-type earth connection, it is characterized in that: described hook (5) is thrown with the common formation of link (6) and is drawn hanging device, the distance between link (6) and right fixture block (4) tail end to be not less than the distance of hook (5) and right fixture block (4) tail end.