Double-lock plug-in circuit breaker capable of preventing switching-on plugging

Abstract

A double-lock-head plug-in circuit breaker capable of preventing switching-on plugging comprises a button mechanism, a transmission disc and an operation mechanism, and further comprises a first locking piece with a first lock head and a second locking piece with a second lock head, and a reset spring drives the first lock head and the second lock head to extend to the extending positions of the first lock head and the second lock head at the same time in the switching-on state and the switching-off state; in a switching-on state, the second locking piece is locked by the driving disc so as to prevent the first lock head and the second lock head from returning to the retraction position; in an opening state, when the second locking piece is subjected to retraction external force to enable the second lock head to retract to a retraction position, the second locking piece locks the driving disc so as to prevent the driving disc from rotating towards a closing direction; in addition, the button mechanism can also drive the circuit breaker to switch to an unlocking state, that is, the button mechanism drives the first locking piece, and then the first locking piece drives the first lock head and drives the second lock head to simultaneously return to the retraction position and switch to the unlocking state, so that the capability of resisting brute force plugging and unplugging is improved.

Description

technical field [0001] The invention relates to the technical field of low-voltage terminal electrical appliances, in particular to a plug-in circuit breaker that can reliably prevent the plug-in of the switch and prevent the pull-out of the switch. Background technique [0002] With the rapid development of network communication technology, especially the popularization of 5G network applications, the requirements for circuit breakers to effectively improve the safety of electrical equipment are getting higher and higher. The traditional power supply method of using a terminal circuit breaker to connect many sockets and plugboards , has been far from meeting the requirements of safe electricity use and equipment protection. For example, terminal circuit breakers for 5G communication equipment need to be upgraded in terms of miniaturization, intelligence, reliability, stability, etc., and are still in use. More matching new structures need to be developed on the market, for ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art that the existing plug-in circuit breaker cannot prevent plugging in the closed state, cannot prevent closing during the plugging process, and cannot resist brute force plugging and unplugging, and provides a circuit breaker that can prevent closing Double lock plug-in circuit breaker, which can prevent closing during plug-in and pull-out, and can effectively resist brute-force plug-in and pull-out

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