Double-knife high-voltage isolation switch

A technology of high-voltage isolating switch and switch knife, which is applied in the direction of air switch parts and electrical components, etc., which can solve the problems of virtual connection or disconnection of lines, poor and unstable isolation effects, etc., and achieve the effect of avoiding virtual connection

Inactive Publication Date: 2016-11-16
朱伯秦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The isolating switch is a switch that can carry the current under normal circuit conditions and the current under abnormal conditions within a specified time when the disconnec...

Method used

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  • Double-knife high-voltage isolation switch
  • Double-knife high-voltage isolation switch
  • Double-knife high-voltage isolation switch

Examples

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no. 1 example

[0018] see figure 1 and image 3 , this patent provides the first embodiment: a double-knife high-voltage isolating switch, including a card holder 1, and an insulator 2 is symmetrically installed on both sides of the top of the card holder 1, and a contact holder 3 is fixedly installed on the top of the insulator 2 , the contact seat 3 is provided with a locking plate 4, at least a pair of conductor contacts are installed on the contact seat 3, a shaft 5 is inserted through the middle of the upper surface of the card seat 1, and the shaft 5 A knife driving device 6 is installed on the side wall of the shaft 5, and a rotating shaft 7 is inserted in the middle of the shaft 5, and the end of the rotating shaft 7 inserted in the inner cavity of the card holder 1 is sleeved with a bevel tooth disc 8, and the bevel tooth disc 8 Intermesh with one end of the drive shaft 9 installed in the inner cavity of the card holder 1, and the other end of the drive shaft 9 extends to the outsi...

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Abstract

The invention discloses a double-knife high-voltage isolation switch. The double-knife high-voltage isolation switch comprises a clamping seat, wherein isolators are symmetrically arranged at two sides of a top part of the clamping seat, contact seats are fixedly arranged at top ends of the isolators, a lock plate is arranged on each of the contact seat, a shaft rod is arranged at the middle of an upper surface of the clamping seat in an insertion way, and a knife driving device is arranged on a side wall of the shaft rod. Two S-shaped knives and two I-shaped knives are used for separately connecting or disconnecting the lock plates, and thus, current conduction can be effectively and stably controlled; by mutual matching of a driven tooth disc, a driving tooth disc and a bevel shaft, the rotation directions of the S-shaped knives are opposite, and the application of the isolation switch is facilitated; the I-shaped knives are oppositely connected with matched contact blocks by a rotation disc and by means of an eccentric moving principle, so that a virtual connection phenomenon during the usage of a single knife is effectively prevented; and by arranging a limiting pin in a pin hole, a contact pin can be effectively prevented from falling off from the pin hole.

Description

technical field [0001] The invention relates to the technical field of high-voltage equipment, in particular to a double-knife high-voltage isolating switch. Background technique [0002] The isolating switch is a switch that can carry the current under normal circuit conditions and the current under abnormal conditions within a specified time when the disconnector is in the off position. The common one is a single-knife isolating switch. The single-knife isolating switch is extremely easy to cause a virtual connection or disconnection of the line. Contents of the invention [0003] The purpose of the present invention is to provide a double-knife high-voltage isolating switch to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above object, the present invention provides the following technical solutions: a double-knife high-voltage isolating switch, including a card holder, insulators are symmetrically installed on...

Claims

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Application Information

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IPC IPC(8): H01H31/10H01H21/54
CPCH01H31/10H01H21/54
Inventor 朱伯秦
Owner 朱伯秦
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