Safety mechanism

Abstract

The invention discloses a safety mechanism. The safety mechanism comprises a cover plate, a bottom plate, a protection door and a return spring. A second inclined plane, a first inclined plane, rib plates, a middle groove and a limiting boss are arranged on the front face of the protection door. The cover plate is provided with side plates, two bolt holes and two paralleled rib plates. The bottom plate is provided with a protruding rib and two through holes. The middle groove of the front face of the protection door is matched with the two paralleled rib plates, and enables the protection door to move along the two paralleled rib plates front to back to form opening and closing when the return spring is compressed and extended. When the protection door is stressed on one side, the protection door deflects towards the other side, a sinking edge sinks into the through holes of the bottom plate and stops the protection door from sliding towards one side, and the limiting boss of an cocking-up edge of the protection door is inserted into an inserting hole of the cover plate and prevents the protection door from sliding backwards and being opened. The side plates surrounding the cover plate can guarantee the protection door to slide horizontally so that the protection door is always arranged in a closed state. Besides, thin and long conducting materials can be prevented from contacting live parts when being inserted from the inserting hole in any angle, and therefore possibility of electric shock is reduced.

Description

technical field [0001] The present invention relates to a basic electrical component, in particular to an electrical accessory, more specifically to an industrial and civil building electrical socket, and more specifically to a safety mechanism for a two-pole socket. Background technique [0002] As we all know, the national electrical standard stipulates that if the installation height of the socket is below 1.8 meters, a safety socket with a protective door should be used. At the same time, there are regulations that, except for air-conditioning sockets and some special-purpose sockets, the lower edge of ordinary indoor sockets should be 300mm from the ground. In other words, the sockets used in households should generally have protective door settings. The protection door mainly prevents leakage accidents caused by accidental insertion of external metal, especially for the protection of children. Children tend to have a strong curiosity about novelty things, and may pok...

AI Technical Summary

Problems solved by technology

At present, there are many structures of protective doors for two-pole sockets on the market, and most of them have problems such as poor anti-unipolar plug insertion effect and unsmooth plug insertion.

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