CN202550208U

CN202550208U - Safety power grounding wire

Info

Publication number: CN202550208U
Application number: CN2012201233486U
Authority: CN
Inventors: 陈建文; 王彪; 李强; 潘家乐; 林晓东; 郑晓祺; 彭真君; 杨名杨; 徐洪福; 杨瑞波
Original assignee: State Grid Corp of China SGCC; State Grid Hebei Electric Power Co Ltd; Cangzhou Power Supply Co of State Grid Hebei Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Hebei Electric Power Co Ltd; Cangzhou Power Supply Co of State Grid Hebei Electric Power Co Ltd
Priority date: 2012-03-29
Filing date: 2012-03-29
Publication date: 2012-11-21
Anticipated expiration: 2022-03-29

Abstract

The utility model relates to a safety power grounding wire which is used for implementing the safety protection of an operator in the constructing or overhauling process of a power grid and comprises a ground terminal fixture, a wire terminal clip and a copper stranded wire. The ground terminal fixture is formed by a fixed pressure plate, a movable pressure plate, a regulating bolt and an iron chain lock cylinder; the fixed pressure plate is of a structure of a rectangular frame of which one side is open; the movable pressure plate is positioned in the frame of the fixed pressure plate and is fixedly connected with the tail end of the regulating bolt; the regulating bolt and an upper border of the fixed pressure plate are assembled in a screw-thread fit mode; and the iron chain lock cylinder is arranged on the movable pressure plate. By the unique structure, the utility model regulates the operation sequence of the operator, effectively solves the problem that the grounding wire is not operated according to the regulations and the requirements in the production and operation field of the existing power system and eliminates the potential safety hazards of electric shock, falling and the like, which occur to the operator.

Description

A kind of safety-type electric power earth connection

Technical field

The utility model relates to a kind of line power ground, especially a kind ofly can execute the earth connection of line safety regulation for operations power ground, belongs to the essential electronic element technical field.

Background technology

Along with the develop rapidly of China's power grid construction in recent years, the electrical network facilities of various places power supply enterprise is constantly perfect, and in electrical network construction or maintenance process, the use of earth connection is necessary safety precautions.According to the requirement of electric power safety working regulation, mount earth connection and should connect earth terminal earlier, after connect conductor wire end; The order of dismounting earth connection in contrast.And the recent statistics data of State Grid Corporation of China show; At present existing more potential safety hazard aspect the use of earth connection; Because of hanging, disconnect the ground wire operation not according to operational procedure, the staff cause the incident of personal injury to happen occasionally; Therefore, design a kind of have execute the task of top priority that the safety-type earth connection of line safety regulation for operations function power ground becomes the power industry safety in production.

The utility model content

The purpose of the utility model is the drawback to prior art, and a kind of simple in structure, practical, ability modular working personnel operation safety-type electric power earth connection in proper order is provided.

The said problem of the utility model realizes with following technical proposals:

A kind of safety-type electric power earth connection; It comprises earth terminal jig, conductor wire end clamp and copper stranded conductor, and said earth terminal jig is made up of fixation clip, movable pressing board, adjusting bolt and iron chains lock, and said fixation clip is the open rectangular frame structure of a side; Said movable pressing board is arranged in the framework of fixation clip; And be fixedly connected with the end of regulating bolt, said adjusting bolt and fixation clip upper side frame assemble with thread fiting mode, and said iron chains lock is arranged on the movable pressing board.

Above-mentioned safety-type electric power earth connection, said conductor wire end clamp is the Duckbill type wire clamp, on its afterbody side, fixedly mounts iron chains, the iron chains lock coupling on said iron chains chain link and the earth terminal jig.

Above-mentioned safety-type electric power earth connection, said copper stranded conductor is connected between earth terminal jig and the conductor wire end clamp.

When the utility model is in non operating state; The iron chains chain link of conductor wire end clamp is sleeved on the iron chains lock outside of earth terminal jig; Movable pressing board is in the middle part of fixation clip framework, and the shackle lock capital of earth terminal jig is lived the upper ledge of fixation clip, and iron chains is by locked; When needs articulated earth connection, after the operating personnel must be installed in the setting position with the earth terminal jig earlier, the iron chains of conductor wire end clamp could take out in the iron chains lock, and then carries out the installation of conductor wire end clamp; When removing earth connection; At first remove the conductor wire end clamp, the iron chains chain link is enclosed within on the iron chains lock of earth terminal jig, move through regulating bolt drive movable pressing board then; The earth terminal jig is removed; Simultaneously that iron chains is locked, conductor wire end clamp and earth terminal jig are coupled together reliably, the carrying of the earth connection of being more convenient for.The utility model is with particular structure, standard operating personnel's operating sequence, solved the on-the-spot problem of using earth connection to require operation of existing electric power system production operation effectively according to rules, eliminated that the operating personnel takes place to get an electric shock and height such as falls at potential safety hazard.It compared with prior art has the good characteristics of security performance, is applicable to the construction and the maintenance of 220kV and following electric pressure equipment.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further.

Fig. 1 is the structure chart of the utility model;

Fig. 2 is that the utility model iron chains concerns sketch map in each element position when being in locking state;

Each element position concerned sketch map when Fig. 3 was the utility model iron chains releasing locking state.

Each label is among the figure: 1, conductor wire end clamp, and 1-1, iron chains, 2, the earth terminal jig, 2-1, regulate bolt, 2-2, movable pressing board, 2-3, fixation clip, 2-4, iron chains lock, 3, copper stranded conductor.

Embodiment

Referring to Fig. 1; The utility model comprises earth terminal jig 2, conductor wire end clamp 1 and copper stranded conductor 3 in constituting; Said earth terminal jig 2 is made up of fixation clip 2-3, movable pressing board 2-2, adjusting bolt 2-1 and iron chains lock 2-4; Said fixation clip 2-3 is the open rectangular frame structure of a side, and said movable pressing board 2-2 is arranged in the framework of fixation clip, and is fixedly connected with the end of regulating bolt 2-1; Said adjusting bolt 2-1 and fixation clip upper side frame assemble with thread fiting mode, and said iron chains lock 2-4 is arranged on the movable pressing board 2-2.

Referring to Fig. 1, the conductor wire end clamp 1 during the utility model constitutes is the Duckbill type wire clamp, fixed installation iron chains 1-1 on its afterbody side, the iron chains lock 2-4 coupling on said iron chains 1-1 chain link and the earth terminal jig.

Referring to Fig. 1, the copper stranded conductor 3 during the utility model constitutes is connected between earth terminal jig 2 and the conductor wire end clamp 1.

Referring to Fig. 1, Fig. 2, Fig. 3; The operation principle of the utility model is: when intrinsic safety holotype earth connection is in non operating state; The iron chains 1-2 chain link of conductor wire end clamp 1 is sleeved on the iron chains lock 2-4 outside of earth terminal jig; Movable pressing board 2-2 is in the middle part of fixation clip 2-3 framework, and the iron chains lock 2-4 of earth terminal jig withstands the upper ledge of fixation clip, and iron chains 1-1 is by locked; When needs articulated earth connection, after the operating personnel must be installed in the setting position with earth terminal jig 2 earlier, the iron chains 1-1 of conductor wire end clamp could take out in iron chains lock 2-4, and then carries out the installation of conductor wire end clamp 1; When removing earth connection; At first remove conductor wire end clamp 1, iron chains 1-1 chain link is enclosed within on the iron chains lock 2-4 of earth terminal jig, move through regulating bolt 2-1 drive movable pressing board 2-2 then; Earth terminal jig 2 is removed; Simultaneously that iron chains 1-1 is locked, conductor wire end clamp 1 and earth terminal jig 2 are coupled together reliably, the carrying of the earth connection of being more convenient for.

The utlity model has the good characteristics of security performance, be applicable to the construction and the maintenance of 220kV and following electric pressure equipment.

Claims

1. safety-type electric power earth connection; It comprises earth terminal jig (2), conductor wire end clamp (1) and copper stranded conductor (3); It is characterized in that said earth terminal jig (2) is made up of fixation clip (2-3), movable pressing board (2-2), adjusting bolt (2-1) and iron chains lock (2-4), said fixation clip (2-3) is the open rectangular frame structure of a side; Said movable pressing board (2-2) is arranged in the framework of fixation clip; And is fixedly connected with the end of regulating bolt (2-1), said adjusting bolt (2-1) and fixation clip upper side frame assemble with thread fiting mode, and said iron chains lock (2-4) is arranged on the movable pressing board (2-2).

2. safety-type electric power earth connection according to claim 1; It is characterized in that; Said conductor wire end clamp (1) is the Duckbill type wire clamp, on its afterbody side, fixedly mounts iron chains (1-1), iron chains lock (2-4) coupling on said iron chains (1-1) chain link and the earth terminal jig.

3. safety-type electric power earth connection according to claim 2 is characterized in that, said copper stranded conductor (3) is connected between earth terminal jig (2) and the conductor wire end clamp (1).