Breaker chamber valve structure

Abstract

The invention discloses a breaker chamber valve structure. The breaker chamber valve structure comprises a support, a pivot, a connection rod, crank arms, a connection rod, a sliding hole, an upper valve, a lower valve, a fixing plate, springs, a tension spring, and a valve support slide rail, wherein the first crank arm is transversely arranged on the support; the middle point between two ends of the first crank arm is rotatably fixed with the support; one end of the first crank arm can keep contact with a pressing plate on two sides of a breaker and the other end of the first crank arm is connected with one ends of both the first connection rod and the second connection rod; the other ends of both the first connection rod and the second connection rod are respectively connected with one ends of both the first crank arm and the third crank arm; the pivots of both the second crank arm and the third crank arm are connected with a straight rod; both the second crank arm and the third crank arm are provided with a sliding hole; the other ends of both the second crank arm and the third crank arm are respectively connected with the lower valve and the upper valve; the tension spring is connected between the third crank arm and the straight rod; the lower valve and the upper valve are arranged on one side of the valve support slide rail; the upper valve fixing plate is arranged on the lower valve; the lower valve fixing plate is arranged on two sides of the valve support slide rail; a pair of springs capable of keeping contact with the lower part of the breaker are arranged on the lower valve fixing plate. The breaker chamber valve structure provided by the invention has the characteristics of reasonable design, concision, reliability, easiness in manufacturing and so on.

Description

technical field [0001] The invention relates to a KYN61-40.5 type switchgear, in particular to a circuit breaker room of a KYN61-40.5 (equipped with ABB switch) cabinet. Background technique [0002] The original circuit breaker of the general KYN61-40.5 high-voltage switchgear is the domestic ZN85-40.5 series circuit breaker, but with the formation of global economic integration, more and more products from foreign companies are selected and matched, among which KYN61-40.5 cabinet There are many design schemes for matching circuit breakers of foreign companies such as ABB, so a matching problem is raised. [0003] Because the circuit breakers of ABB and other companies are quite different from our domestic circuit breakers in size, the contact arm is shorter, and the propulsion mechanism is also different, so it is impossible to use the original valve mechanism to match the circuit breakers of ABB and other companies. It has been realized, but some foreign mechanisms are m...

AI Technical Summary

Problems solved by technology

[0003] Because the circuit breakers of ABB and other companies are quite different from our domestic circuit breakers in size, the contact arm is shorter, and the propulsion mechanism is also different, so it is impossible to use the original valve mechanism to match the circuit breakers of ABB and other companies. It has been realized, but some foreign mechanisms are more complicated in design and less reliable, and usually adopt the gear chain method, so we designed a set of valve mechanisms that can fully cooperate with ABB and similar circuit breakers.

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