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Double-knife high voltage isolating switch

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

Inactive Publication Date: 2017-01-04
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 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 virtual connection or disconnection of the line.

Method used

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  • Double-knife high voltage isolating switch
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  • Double-knife high voltage isolating 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 isolating switch which comprises a clamp holder. Insulators are symmetrically arranged on both sides of the top of the clamp holder. A contact base is fixedly arranged at the top of each insulator. A locking plate is arranged on each contact base. A shaft lever is inserted into the middle upper surface of the clamp holder. A knife driving device is arranged on the side wall of the shaft lever. The locking plates are connected or disconnected through two S-shaped knives and two straight knives. Current conduction can be effectively and steadily controlled. Through mutual interaction of a driven gear disk, a drive gear disk and an umbrella gear shaft, the rotation directions of the S-shaped knives are opposite, which facilitates the use of the isolating switch. A rotary disk is used, and the principle of eccentric movement is used to realize butt joint of the straight knives and matched contact blocks, so as to effectively avoid the phenomenon of virtual connection when a single knife is used. A contact pin is effectively prevented from falling off from a pin hole by arranging a limit pin in 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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Patent Type & Authority Applications(China)
IPC IPC(8): H01H31/10H01H21/54
CPCH01H31/10H01H21/54
Inventor 朱伯秦
Owner 朱伯秦
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