Shock preventing mechanism having buffering stress-alleviating function

Abstract

The invention discloses a shock preventing mechanism having a buffering stress-alleviating function, which comprises a stopping piece, a balance, a limiting shaft, a return spring, a pin shaft and a rotating shaft, wherein the balance comprises a mandril, a rotating shaft, a compression spring and a clamping plate; and peripheral equipment includes a main shaft and a bracket of a circuit breaker. When the circuit breaker is shocked under the tripping state, the balance is turned below the stopping piece under the effect of a shocking force so as to hold the stopping piece and to further prevent the mistake contact of a circuit breaker contactor under the tripping state; after the shock, the balance can be returned to an initial position under the effect of the return spring, so normal closing of the circuit breaker is free from being influenced; and at the same time, when normal switching-on of the circuit breaker is required at the moment of strong shock, the balance can be pushed out by the stopping piece through the deformation of the balance, and the function of the circuit breaker can be prevented from being lost. Due to the adoption of the shock preventing mechanism, the circuit breaker can be safer and more reliable to use.

Description

Technical field [0001] The invention relates to an anti-shock mechanism with buffering and unloading functions, belonging to the field of marine electrical appliances. Background technique [0002] Circuit breakers are mainly responsible for the protection of power distribution lines and electrical equipment from overload, undervoltage, and short circuit. The closing or opening of circuit breakers achieves the purpose of power supply, power failure and circuit conversion. However, for marine circuit breakers, if they are subjected to strong shock and vibration, the circuit breaker in the open position may close instantaneously. Seriously affect the safety of operators and the normal operation of the equipment, and even cause damage to the power system or fire due to a short circuit in the system. [0003] In the invention patent with the announcement number "CN 100456412C" and the name "frame-type circuit breaker anti-surge structure", two stoppers are used to lock the main shaft ...

AI Technical Summary

Problems solved by technology

The disadvantage of this anti-shock structure is: since the circuit breaker is always locked when it is disconnected, if the closing button fails, the circuit breaker cannot be closed when it needs to be used, which will seriously affect the normal operation of the power system

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