CN2473790Y

CN2473790Y - Fall-down type lightning arrester

Info

Publication number: CN2473790Y
Application number: CN 01218207
Authority: CN
Inventors: 张立平
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-26
Filing date: 2001-03-26
Publication date: 2002-01-23
Anticipated expiration: 2011-03-26

Abstract

The utility model discloses a fall-down type lightning arrester, which comprises the lightning arrester body, a fault release, an insulating support post, and a terminal which is respectively arranged on the upper and the lower end of the insulating support post. The upper end of the insulating support post is provided with an elastic conductive pressing plate which is connected with the upper end of the lightning arrester body, the lower part of the insulating support post is provided with a turning device used for bearing the lower part of the lightning arrester body, and the flip flop latch hooks of the turning device is locked by the fault release of the lightning arrester body through the traction of the lead wire. Such design has the advantages of easy discovery and replacement of the fallen lightning arrester, no effect on the normal operation, no hot-line work, convenient periodic detection and safe loading and unloading.

Description

The drop type lightning arrester

The utility model relates to the technical field of outdoor AC high-voltage circuit with lightning arrester.

Lightning arrester all is housed on the outdoor high-voltage electrical network, to prevent that thunder and lightning from damaging electrical network, but traditional high-tension line lightning arrester is fixedlyed connected with electrical network, lightning arrester was struck by lightning behind the electricity, when if the lightning arrester outward appearance does not have damage, it is artificial that to examine be difficult the discovery with observing, it is very time-consuming that this repairs the trouble-shooting point, on the other hand, after lightning arrester is crossed electric fault, owing to still be connected with electrical network, during the lightning arrester that more renews or live line working, the circuit power failure of operating a switch gives that repairing more changes jobs causes trouble, has also delayed the time of power system restoration.

The purpose of this utility model is the weak point that overcomes above-mentioned prior art, provides a kind of thunderbolt to cross electricity when serious, is easy to the drop type lightning arrester of finding, changing and repair after breaking down.

The purpose of this utility model is achieved by the following technical solution: the drop type lightning arrester, include lightning arrester body, fault release, insulation column, be loaded on the terminals of insulation column upper and lower side respectively, it is characterized in that: end in contact on elastic conduction pressing plate and the lightning arrester body is equipped with in the insulation column upper end, slewing equipment support lightning arrester body bottom then is equipped with in the insulation column bottom, and the triggering latch hook of slewing equipment is locked by the lead traction by the fault release on the lightning arrester body.Further, slewing equipment is made of support seat, switch block, triggering latch hook, torsion spring, bearing, be movably hinged between support seat and the switch block, switch block and bearing are hinged by axle, bearing and insulation column lower end are connected, trigger latch hook buckle under the traction of fault release lead and support the support seat, and compress torsion spring.

Below in conjunction with drawings and Examples structure of the present utility model and advantage are described further.

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

Fig. 2 is the cutaway view of Fig. 1;

Fig. 3 is the structural representation that falls state;

Fig. 4 is the schematic diagram of embodiment two.

Referring to Fig. 1-Fig. 2, present embodiment include silicon rubber pillar 5, pillar two ends about in the of 5 terminals 1,12, lightning arrester body 4, be connected in the conventional fault release 8 of lightning arrester body 4 lower ends, special feature is that pillar 5 upper ends also are fixed with conductive pressing plate 2, stage clip 3 is housed on the conductive pressing plate 2, and conductive pressing plate 2 contacts with the contact elastic compression of lightning arrester body 4 upper ends; The lower end of pillar 5 then is fixed with slewing equipment, slewing equipment is made of support seat 6, switch block 9, triggering latch hook 7, torsion spring 13, bearing 11 etc., bearing 11 is fixed on pillar 5 belows, switch block 9 is hinged by axle 14 and bearing 11, and support seat 6 one ends also are movably hinged with switch block 9, the lower end socket support of support seat 6 and lightning arrester body 4.Fault release 8 is connected with slewing equipment by lead 10, and lead 10 traction triggers on the breach that latch hooks 7 are snapped in support seat 6 lower ends, support and limit support seat 6, make support seat 6 keep vertical stand-up, meanwhile, lead 10 tractions trigger latch hook 7 and compress coaxial mounted torsion spring 13.Like this, under the traction of lead 10 connects, trigger latch hook 7 restrictions and locking support seat 6 state of being kept upright, and by support lightning arrester body 4 be connected with conductive pressing plate 2.In case electrical network is struck by lightning, heavy current is passed through lightning arrester body 4 by terminals 1, the high temperature that heavy current produces is enough to allow the alloy melting of conventional fault release 8 and lightning arrester body 4, fault release 8 separates with lightning arrester body 4 and falls, meanwhile, also fall and lose by the lead 10 of fault release 8 traction triggering the restraining force of latch hook 7, triggering latch hook 7 resets in the twisting force turning down of torsion spring 13, trigger the breach that latch hook 7 leaves supporting base 6, thereby remove locking to support seat 6, lightning arrester body 4 drops down (as shown in Figure 3) under the elastic force effect of self gravitation and conductive pressing plate 2 automatically, thereby lightning arrester body 4 is separated with pillar 5 upper ends, break away from electrical network.Like this, fall unsettledly after lightning arrester damages automatically, both be easy to find, can under uncharged situation, change novel lightning arrester again.

Certainly, structure of the present utility model also can be applicable on the porcelain vase column support type lightning arrester, and as shown in Figure 4, just the structure of attaching slewing equipment changes slightly, here also only enumerated preferable implementation, other is equal to, slewing equipment roughly the same, fall structure and repeat no more.

In sum, the utlity model has obvious advantage:

1, automatically falls unsettledly behind the arrester broken by lightning, be easy to timely discovery, saved The time of trouble-shooting point;

2, arrester separates with electrical network after damaging immediately automatically, does not affect the normal fortune of electrical network OK;

3, line, power failure need not be put in order, replacing can be installed and removed at any time;

4, not live line working, mounting or dismounting safety.

Claims

1, drop type lightning arrester, include lightning arrester body, fault release, insulation column, be loaded on the terminals of insulation column upper and lower side respectively, it is characterized in that: end in contact on elastic conduction pressing plate and the lightning arrester body is equipped with in the insulation column upper end, slewing equipment support lightning arrester body bottom then is equipped with in the insulation column bottom, and the triggering latch hook of slewing equipment is locked by the lead traction by the fault release on the lightning arrester body.

2, lightning arrester according to claim 1, it is characterized in that slewing equipment is made of support seat, switch block, triggering latch hook, torsion spring, bearing, be movably hinged between support seat and the switch block, switch block and bearing are hinged by axle, bearing and insulation column lower end are connected, trigger latch hook buckle under the traction of fault release lead and support the support seat, and compress torsion spring.