CN201393066Y

CN201393066Y - Drop-out lightning arrester

Info

Publication number: CN201393066Y
Application number: CN200920301023U
Authority: CN
Inventors: 杨书伟; 曹文华
Original assignee: Jiangmen Jiya Electrical Co Ltd
Current assignee: GUANGDONG JIYA ELECTRICAL CO., LTD.
Priority date: 2009-03-03
Filing date: 2009-03-03
Publication date: 2010-01-27
Anticipated expiration: 2019-03-03

Abstract

The utility model discloses a drop-out lightning arrester. The drop-out lightning arrester comprises a fixed bracket assembly and a lightning arrester assembly, wherein the lightning arrester assembly includes a lightning arrester body; a pull ring and a conductive contact are arranged on the upper part of the lightning arrester body; a hot fuse or a thermo-explosive disconnector is connected with the bottom of the lightning arrester body; the hot fuse or the thermo-explosive disconnector is connected with a turning block through a conductive and limiting element; the lower part of the lightning arrester body is connected with a support base; and a slotted hole locking mechanism is located between the turning block and the support base. When defects or damages occur, the lighting arrester body can be disconnected form the grid automatically, and the lighting arrester device can generate an indication signal. The lightning arrester body in the lightning arrester device is suitable for hot line work and assembly/disassembly, and is convenient in regular repair and maintenance.

Description

The drop type lightning arrester

Technical field

The utility model relates to a kind of lightning arrester, particularly a kind of drop type lightning arrester.

Background technology

Automatically the disengaged high-voltage arrester is used for outdoor AC 10kV circuit, uses as the protection device of line over-voltage.

The traditional circuit lightning arrester is fixed installation, and dismounting, maintenance need to have a power failure and be inconvenient, are difficult for distinguishing that result of use is undesirable when lightning arrester is damaged fault.

Summary of the invention

In order to overcome the deficiency of above-mentioned technology, it is a kind of simple and reasonable for structure that the purpose of this utility model is to provide, service-strong drop type lightning arrester.

The technical solution of the utility model is:

The drop type lightning arrester, comprise m and lightning arrester assembly, m comprises insulation support body, the top and the bottom of insulation support body are equipped with upper bracket and lower carriage respectively, be connected with the elastic conduction pressing plate on the upper bracket, lower carriage is equipped with down elastic conductive component, lightning arrester assembly includes lightning arrester body, the top of lightning arrester body is provided with draw ring and conductive contact, the position of conductive contact is corresponding with the position of last elastic conduction pressing plate, the bottom of lightning arrester body is connected with hot melt or thermal explosion disconnector, hot melt or thermal explosion disconnector are connected to a moving block by a conduction and limiting element, the front end of this conduction and limiting element is corresponding with following elastic conductive component position, moving block is arranged on the lower carriage by rotating shaft, the bottom of lightning arrester body is connected with supporting base, the long slot bore locking mechanism is arranged between moving block and the supporting base, lightning arrester is under normal condition, the make moving block and the supporting base of conduction and limiting element keep, the conduction and the front end of limiting element are kept and the contacting of following elastic conductive component, during the lightning arrester fault, hot melt or thermal explosion disconnector come off, the restriction that conduction that is connected with hot melt or thermal explosion disconnector and limiting element lose horizontal direction, moving block outwards overturns, long slot bore locking mechanism between supporting base and the moving block is threaded off, and lightning arrester body is subjected to gravity fall.

The beneficial effects of the utility model are: when lightning arrester body generation defective or damage, device can make lightning arrester body break away from electrical network automatically, and produces indication.But lightning arrester body hot line job and dismounting in the arrester device are conveniently carried out periodic inspection and are safeguarded.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a front view of the present utility model;

Fig. 2 is a sectional structure schematic diagram of the present utility model;

Fig. 3 is the structural representation of lightning arrester body of the present utility model etc.;

Fig. 4 is the structural representation of the utility model hot melt or thermal explosion disconnector and moving block etc.;

Fig. 5 is the structural representation of m of the present utility model;

Fig. 6 is that this drop type lightning arrester is at the structural representation of initial condition that comes off;

The structural representation that Fig. 7 is this drop type lightning arrester supporting base when long slot bore glides;

Fig. 8 is the structural representation of this drop type lightning arrester moving block when turning up;

Fig. 9 is that this drop type lightning arrester lightning arrester body falls structural representation at the end;

Embodiment

With reference to Fig. 1-Fig. 9, drop type lightning arrester of the present utility model, comprise m and lightning arrester assembly, m comprises insulation support body 10, the top and the bottom of insulation support body 10 are equipped with upper bracket 2 and lower carriage 3 respectively, be connected with elastic conduction pressing plate 4 on the upper bracket 2, lower carriage 3 is equipped with down elastic conductive component 40, lightning arrester assembly includes lightning arrester body 1, the top of lightning arrester body 1 is provided with draw ring 5 and conductive contact 6, the position of conductive contact 6 is corresponding with the position of last elastic conduction pressing plate 4, the bottom of lightning arrester body 1 is connected with hot melt or thermal explosion disconnector 7, hot melt or thermal explosion disconnector 7 are connected to a moving block 9 by a conduction and limiting element 8, the front end of this conduction and limiting element 8 is corresponding with following elastic conductive component 40 positions, moving block 9 is arranged on the lower carriage 3 by rotating shaft 30, the bottom of lightning arrester body 1 is connected with supporting base 14, between moving block 9 and the supporting base 14 the long slot bore locking mechanism is arranged, lightning arrester is under normal condition, the make moving block 9 and the supporting base 14 of conduction and limiting element 8 keep, the conduction and the front end of limiting element 8 are kept and the contacting of following elastic conductive component 40, during the lightning arrester fault, hot melt or thermal explosion disconnector 7 come off, conduction that is connected with hot melt or thermal explosion disconnector 7 and limiting element 8 lose the restriction of horizontal direction, moving block 9 outwards overturns, long slot bore locking mechanism between supporting base 14 and the moving block 9 is threaded off, and lightning arrester body is subjected to gravity fall.

Further, as preferred implementation, the bottom of lightning arrester body 1 was communicated with anchor ear 13 and connected supporting base 14, and this anchor ear 13 places the top of hot melt or thermal explosion disconnector 7.

In addition, as preferred implementation, there is the long slot bore locking mechanism to be included in moving block 9 between described moving block 9 and the supporting base 14 and is provided with the axis of guide 11 and the first clamping plate 12, on supporting base 14, be provided with long slot bore 15 and the second clamping plate 16 corresponding with the first clamping plate 12, long slot bore 15 has clamping part 150 and landing portion 152, and the axis of guide 11 of moving block 9 places long slot bore 15.

Described conduction and limiting element 8 comprise a lead 80 and the conductive contact blade 82 that is installed in moving block 9 the north, and an end of lead 80 is connected with hot melt or thermal explosion disconnector 7, and the other end is connected with conductive contact blade 82.

The release unit operation principle of drop type lightning arrester of the present utility model:

See Fig. 1, Fig. 2, the lightning arrester normal condition; By conduction and limiting element 8, make supporting

base

14 and 9 liang of mechanisms of moving block remain on operating state; The axis of guide 11 is fixedly mounted on the moving block 9, cutting elongated groove hole 15 on the supporting base 14, and this long slot bore 15 can move along the axis of guide 11, and owing to conduction and the restriction of limiting element 8 are limited by the axis of guide 11, supporting base 14 can not move downward, and promptly lightning arrester can not break away from.

Fig. 6-9: when the lightning arrester fault, hot melt or thermal explosion disconnector 7 break away from lightning arrester body, because the elastic force of last elastic conduction pressing plate 4, the elastic force and the gravity acting in conjunction of elastic conductive component 40 down, and conduction and limiting element 8 lose the restriction of horizontal direction, long slot bore 15 on the supporting base 14 moves along the axis of guide 11, is entered the following slotted hole part of landing portion 152 by the clamping part on the long slot bore 15 150.And then last lightning arrester body 1 drops to end of a period state as shown in Figure 9.

Certainly, the invention is not limited to above-mentioned embodiment, and other equivalent also should be within protection range of the present utility model.

Claims

1. drop type lightning arrester, it is characterized in that: comprise m and lightning arrester assembly, m comprises insulation support body (10), the top and the bottom of insulation support body (10) are equipped with upper bracket (2) and lower carriage (3) respectively, be connected with elastic conduction pressing plate (4) on the upper bracket (2), lower carriage (3) is equipped with down elastic conductive component (40), lightning arrester assembly includes lightning arrester body (1), the top of lightning arrester body (1) is provided with draw ring (5) and conductive contact (6), the position of conductive contact (6) is corresponding with the position of last elastic conduction pressing plate (4), the bottom of lightning arrester body (1) is connected with hot melt or thermal explosion disconnector (7), hot melt or thermal explosion disconnector (7) are connected to a moving block (9) by a conduction and limiting element (8), the front end of this conduction and limiting element (8) is corresponding with following elastic conductive component (40) position, moving block (9) is arranged on the lower carriage (3) by rotating shaft (30), the bottom of lightning arrester body (1) is connected with supporting base (14), between moving block (9) and the supporting base (14) the long slot bore locking mechanism is arranged, lightning arrester is under normal condition, the make moving block (9) and the supporting base (14) of conduction and limiting element (8) keep, the conduction and the front end of limiting element (8) are kept and the contacting of following elastic conductive component (40), during the lightning arrester fault, hot melt or thermal explosion disconnector (7) come off, conduction that is connected with hot melt or thermal explosion disconnector (7) and limiting element (8) lose the restriction of horizontal direction, moving block (9) is upset outwards, long slot bore locking mechanism between supporting base (14) and the moving block (9) is threaded off, and lightning arrester body is subjected to gravity fall.

2. drop type lightning arrester according to claim 1 is characterized in that: the bottom of lightning arrester body (1) was communicated with anchor ear (13) and connected supporting base (14), and this anchor ear (13) places the top of hot melt or thermal explosion disconnector (7).

3. drop type lightning arrester according to claim 1, it is characterized in that: have the long slot bore locking mechanism to be included in moving block (9) between described moving block (9) and the supporting base (14) and be provided with the axis of guide (11) and the first clamping plate (12), on supporting base (14), be provided with long slot bore (15) and the second clamping plate (16) corresponding with the first clamping plate (12), long slot bore (15) has clamping part (150) and landing portion (152), and the axis of guide (11) of moving block (9) places long slot bore (15).

4. drop type lightning arrester according to claim 1, it is characterized in that: described conduction and limiting element (8) comprise a lead (80) and are installed in the northern conductive contact blade (82) of moving block (9), one end of lead (80) is connected with hot melt or thermal explosion disconnector (7), and the other end is connected with conductive contact blade (82).