Two-hole socket

Abstract

The invention specifically relates to a two-hole socket. The two-hole socket comprises a bottom casing and a surface casing fixed on the bottom casing, wherein the surface casing is provided with lock pins, the bottom casing is internally provided with protective doors moving up and down along the inside of the bottom casing, the side positions of the protective doors are provided with slide walls, one ends of the lock pins are arranged on the slide walls, the lower ends of the protective doors are also provided with lock keys, the lock keys are arranged on the lock pins, the upper ends of the protective doors are provided with inclined surfaces, the protective doors are also provided with second reset springs, and the reset springs abut against the bottom casing. The two-hole socket has the following advantages: 1, by use of combination of the lock pins and the protective doors, the doors cannot be open simply through push at one sides without simultaneous arrangement of standard plugs on the protective doors, and thus a safety protection effect is exhibited; and 2, the lock pins are locked by use of a first lock key and a second lock key for restricting unlocking which cannot be realized without plugs, children are prevented from electric shock risks caused by insertion of metal probes into the socket, and an electric shock prevention effect is exhibited.

Description

technical field [0001] The invention relates to the technical field of sockets, in particular to a two-hole socket. Background technique [0002] In order to improve the safety of socket use and avoid electric shock accidents due to misuse or children's incomprehension, a protective door is usually installed under the socket of the two-pole socket and above the socket; when working, the two-pole plug is inserted into the socket, The protective door is opened, and the normal electrical connection between the plug and the socket is completed. [0003] Chinese patent document CN2373908 discloses a push-open type socket protection door, which adopts the flip-top principle to form a covering barrier for the socket inside to prevent electric shock, but it cannot completely prevent electric shock caused by single-pole insertion. [0004] Chinese patent document CN2497446 discloses a two-pole socket protection door assembly. When a single pole is inserted, the protection door makes...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent document CN2373908 discloses a push-open socket protection door, which adopts the flip-top principle to form a cover for the socket inside to prevent electric shock, but it cannot completely prevent electric shock caused by single-pole insertion

[0004] Chinese patent document CN2497446 discloses a two-pole socket protection door assembly. When a single pole is inserted, the protection door prevents contact with most parts of the socket, which can prevent electric shocks formed when a single pole is inserted, but its structure is complex and its reliability is low. , The national standard GB2099.1-2008 has two requirements for the socket protection door: 1. 3 times 1MM probe rotation plus 20N thrust and 1MM diameter probe rotation plus 1N thrust cannot touch live parts; 2. The protective door designed to prevent single-pole insertion should be able to withstand a single-pin insertion force greater than 75N

The above protective structure still has the danger of electric shock caused by excessive insertion force

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