Pneumatic electromagnetic shielding door

Abstract

The invention discloses a pneumatic electromagnetic shielding door which comprises a door frame, a shielding door body is arranged in the door frame, the shielding door body is composed of a first shielding door plate and a second shielding door plate which are symmetrically arranged, and compared with an existing electromagnetic shielding door, the first shielding door plate and the second shielding door plate are arranged in the door frame; the entrance area of the doorway can be increased, a first containing cavity and a second containing cavity are formed between the opposite sides of the first shielding door plate and the second shielding door plate correspondingly, and a push plate in the first containing cavity can be pushed into the position between the first shielding plate and the second shielding plate through an inflation air bag; therefore, a gap between the first shielding plate and the second shielding plate can be filled so as to improve the shielding effect, and an ejector rod is arranged in the second storage cavity, so that the position of a push plate can be further limited, and the practicability is further improved.

Description

technical field [0001] The invention relates to the technical field of screen doors, in particular to a pneumatic electromagnetic screen door. Background technique [0002] The main components of the anechoic chamber are the shielding room and the absorbing material. The shielded room is composed of a shielded shell, a shielded door, a ventilation waveguide window and various power filters. The shielded door must have three conditions: easy and reliable door opening and closing, good shielding and sealing, and non-magnetic materials. The existing screen doors mainly have two closing forms. One is the ordinary screen door, which adopts the manual closing of the door leaf. The other is a pneumatic screen door. The door leaf is manually closed, and the reed is installed on the inside of the door frame. The air pump is used to hit the reed through the cylinder piston, so that the reed is sealed and shielded. However, due to the machining error between the two doors, there is st...

AI Technical Summary

Problems solved by technology

The other is the pneumatic screen door, which uses manual closing of the door leaf, the reed is installed inside the door frame, and the air pump air source is used to hit the reed through the cylinder piston, so that the reed is sealed and shielded, but there are still gaps between the two doors due to processing errors. gap, so the shielding effect is still not ideal

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