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Circuit breaker actuating mechanism and its lever anti-slip structure

A technology of operating mechanism and circuit breaker, which is applied in the direction of protection switch operation/release mechanism, contact operating parts, etc., which can solve the problems of inner or outer movement, operating mechanism falling apart, and large main spring tension, etc., so as to reduce the mechanical contact surface , reduce frictional resistance, improve the effect of mechanical life

Active Publication Date: 2008-01-09
SEARI ELECTRIC TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The double breakpoint form of molded case circuit breaker is one of the development directions of current molded case circuit breaker products. As an important part of molded case circuit breaker, the operating mechanism has received great attention. Commonly known, the main spring tension of the new operating mechanism with the current high-speed action is large. In the case of a large lever load, the two supporting rotating feet of the lever may move to the inside or outside. Once the movement is too large, the lever and the side plate will have no rotating pair. fit, causing the operating mechanism to fall apart

Method used

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  • Circuit breaker actuating mechanism and its lever anti-slip structure
  • Circuit breaker actuating mechanism and its lever anti-slip structure
  • Circuit breaker actuating mechanism and its lever anti-slip structure

Examples

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Embodiment Construction

[0020] According to the present invention, there is provided an anti-slip structure for a lever in a circuit breaker operating mechanism, comprising: a side plate assembly fixed on the side plate of the circuit breaker operating mechanism, wherein the rotating foot of the lever is in rotatable contact with the side plate; The side plate assembly limits the pivoting foot of the lever from sliding outboard.

[0021] Preferably, the anti-skid structure further includes a lever assembly fixed on the rotating foot of the lever; the lever assembly cooperates with the side plate of the circuit breaker operating mechanism to limit the sliding of the rotating foot of the lever to the inside.

[0022] An example of a lever assembly can be realized using a baffle, such as a circular baffle, fixed to the outside of the pivoting foot of the lever, and the size of the baffle is larger than the arc groove on the side plate that contacts the pivoting foot of the lever. The plate contacts the ...

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PUM

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Abstract

The invention is concerned with the antiskid structure of the lever of the circuit breaker operating mechanism, includes the side sheet subassembly, on the side sheet of the operating mechanism where the rotation feet of the lever is in touch with the side plate can turn to; and the antiskid structure also includes the lever subassembly, on the rotation feet of the lever, cooperates with the circuit breaker operating mechanism's side sheet and its subassembly limit the rotation foot of the lever sliding to the medal or the forth. The antiskid structure provides the inter-bound movement betweens the lever and the side sheet support, limits the rotation foot of the lever sliding to the medal or the forth, and reduces the contact surface and the frictional resistance by using the small convex stage, improves the product life cycle.

Description

technical field [0001] The invention relates to a circuit breaker operating mechanism, more specifically, to a circuit breaker operating mechanism and a lever anti-slip structure therein. Background technique [0002] The double breakpoint form of molded case circuit breaker is one of the development directions of current molded case circuit breaker products. As an important part of molded case circuit breaker, the operating mechanism has received great attention. Commonly known, the main spring tension of the new operating mechanism with the current high-speed action is large. In the case of a large lever load, the two supporting rotating feet of the lever may move to the inside or outside. Once the movement is too large, the lever and the side plate will have no rotating pair. Cooperate, causing the operating mechanism to fall apart. [0003] Therefore, there is a need for a non-slip structure that is conducive to reliable lever action and high service life. Contents of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10H01H3/04
Inventor 顾翔顾惠民张小燕蒋志丽孙吉升
Owner SEARI ELECTRIC TECH
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