Opening spring mounting support and circuit breaker using the mounting support

Abstract

The invention relates to a breaking spring mounting support and a breaker employing the same. The breaking spring mounting support comprises a guide part and a spring seat, wherein the axis of the guide part extends along the up-and-down direction; the guide part is in a split structure and comprises a pull rod and a guide rod; the upper end of the pull rod is used for being connected with a transmission crank arm; the lower end of the guide rod is used for being arranged on a support plate in a guiding manner; the spring seat is arranged on the guide rod; the spring seat and / or the guide rod are / is in transmission connection with the pull rod via threads; and reset force of a breaking spring is simultaneously applied to the spring seat and the guide rod in the adjusting process. The guide rod is arranged on the support plate in the guiding manner; and tension of the guide rod is applied to the spring seat, but not like the prior art that the reset force of the breaking spring is only applied to the spring seat, so that the problem of damage to inner threads of the spring seat in the prior art due to fact that the spring seat easily deflects and is unbalanced under the reset force of the breaking spring in the adjusting process is solved.

Description

technical field [0001] The invention relates to an opening spring mounting support for a circuit breaker and a circuit breaker using the mounting support. Background technique [0002] Most of the opening spring mounting supports of existing circuit breakers are non-adjustable. When the non-adjustable opening spring mounting supports are installed with the circuit breaker box, it is time-consuming, laborious and inconvenient. That is, it is in a fixed state, and its reset force cannot be adjusted in the subsequent use process, and it cannot be adjusted to make it in an ideal state, which will affect the working performance of the entire circuit breaker. Adjustable circuit breaker opening springs have appeared on the market, such as the Chinese invention patent with the authorized announcement number CN101587796 B, which discloses an adjustable opening spring structure for circuit breakers, including a mounting plate that is a support plate, and a guide plate that is a guide ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned problems in the prior art, and provide a solution to the problem in the prior art that the internal thread of the spring seat is damaged due to the unbalanced restoring force of the spring seat by the opening spring in the prior art. The opening spring mounting bracket of the damage problem, at the same time, the object of the present invention is to provide a circuit breaker using the mounting bracket

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