Anti-poison mask capable of adjusting fitting degree of face mask

Abstract

The invention discloses an anti-poison mask capable of adjusting a fitting degree of a face mask. The anti-poison mask comprises a mask body, filtering tanks are fixedly installed on the two sides of the mask body, the mask body comprises a shell, a front joint strip is movably installed on the front face of the shell, a rear mask is fixedly installed on the back face of the shell, and a connecting net is movably installed on the back face of the front joint strip. According to the anti-poison mask capable of adjusting the fitting degree of the face mask, hexagonal-like blocks are installed in the connecting net, gaps of the connecting net are filled, when ear belts of the anti-poison mask are pulled, the connecting net contracts, a push-pull rod gets close to the axis of a fixing disc along an inner cavity of a fixing sleeve, a compression spring is stressed and compressed, transverse rods on the two sides of the push-pull rod pull side arms to move downwards, folding rods and bent rods are rotationally connected to the two sides of the top of the side arms through rotating shafts, the left ends of the bent rods pull the two ends of elastic rods to expand outwards, the radian of the elastic rods is reduced, the dip angle of rotating rods is increased, and the problems that a traditional anti-poison mask is poor in attaching degree and small in sealing performance are solved.

Description

technical field [0001] The invention relates to the technical field of protective equipment, in particular to a gas respirator that can adjust the fitting degree of the mask. Background technique [0002] A gas mask is a special labor protection product that protects the respiratory system of personnel. It is generally composed of a filter box or a filter tank and a mask body. The main body of the mask isolates the air and acts as a seal; the poison box filter canister acts as a filter for poisonous gas and dust. It is mainly used in the working environment with low concentration of harmful gas and dust. Respirators are widely used in the fields of petroleum, chemical industry, mining, metallurgy, military, fire protection, emergency rescue and disaster relief, health and epidemic prevention, technology and environmental protection. [0003] Due to the direct connection between the shell and the internal filter mechanism of the traditional gas mask, the overall shape of th...

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Problems solved by technology

[0003] Due to the direct connection between the shell and the internal filter mechanism of the traditional gas mask, the overall shape of the shell is very limited, and the adjustable range is very small, because everyone's face is different, and the small adjustable range has led to traditional masks. High-quality anti-virus masks can only fit a small number of people's faces. When most people wear them, there will be a certain gap between the face and the outside world, which will lead to reduced airtightness and reduced protection. Under normal circumstances, they can only be covered with hands. Respirators, reduce the pressure by increasing the pressure, but this method will limit the movement of the hands

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