Dipolar interlocking protection door of socket

Abstract

An interlocking protection door for a bipolar socket is installed between jacks and plugs and includes a first slider (1) and a second slider (2) embedding with and sliding relative to each other. The first slider (1) corresponds to the first jack and has a first wedge-shaped block (11) and a first door plate (12). The second slider (2) corresponds to the second jack and has a second wedge-shaped block (21) and a second door plate (22). The first door plate (12) is below the second wedge-shaped block (21), and the second door plate (22) is below the first wedge-shaped block (11). The rear ends of the first slider (1) and the second slider (2) are equipped with respective springs. The protection door has a superposed double-layered protection door structure constituted by the wedge-shaped blocks and the door plates, and usually it is closed by the spring force. It is simple in structure with an interlock function, which can effectively prevent a single pin into the jack so as to greatly increase the safety of the product.

Description

technical field [0001] The invention relates to the field of sockets, in particular to a protection door capable of realizing interlocking applied to two-pole sockets. Background technique [0002] In order to improve the safety of socket use and avoid electric shock accidents due to misuse or children's incomprehension, protective doors are often installed below the two-pole socket socket and above the socket. When working, the two-pole plug is inserted into the socket to protect the socket. The door is opened and engages with the socket below it to complete the normal electrical connection. [0003] Chinese patent document CN2373908 discloses a flip-open 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 si...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent document CN2373908 discloses a flip-open 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 prevents it from contacting the socket, which can prevent electric shock when the single pole is inserted. However, its structure is complex and its reliability is low. The national standard GB2099. 1-2008 has two requirements for socket protection door:

The above protective door structure still has the risk of electric shock due to excessive insertion force

Images