Shaking type self-suction respirator

Abstract

The invention discloses a shaking type self-suction respirator which comprises a breathing mask, an exhaust pipe and an intake gas filtering mechanism. When dust and fume particles are attached to a filter screen, a whole lower sealing cover can be pushed upwards, so that an internal thread ring protrusion moves upwards outside the periphery of a floating groove; then the lower sealing cover is loosened; the internal thread ring protrusion is extruded downwards through an annular elastic abutting part to move downwards, and then the internal thread ring protrusion is abutted against the periphery of the upper end of an external thread ring protrusion, so that the filter screen is shaken up and down, then the dust and fume particles on the filter screen are deposited downwards under the inertia effect and enter an annular accommodating groove below the periphery along a conical plate to be deposited; gas enters a gas inlet pipe from the middle of the conical plate, so that separation of the dust and fume particles and the intake gas is implemented, and fume-gas separation is implemented; and meanwhile, a sealing ring body in the floating groove is abutted against the inner side of the periphery of the internal thread ring protrusion and then sealing is implemented, so that the shaking type self-suction respirator can rapidly and conveniently clear away the dust and fume particles.

Description

technical field [0001] The invention relates to a shaking type self-priming respirator. Background technique [0002] With the continuous increase of the population, the population is more and more densely populated. If a fire occurs, it will bring certain difficulties to the rescue work of the firefighters. Due to the obstruction of the building, the large rescue equipment cannot be moved to the fire occurrence area. A large amount of toxic and harmful gases will be generated, so residents need to prepare some breathing devices for emergency escape at home. The existing self-priming respirator generally includes a breathing mask and a filter cavity. The gas enters from the filter cavity and reaches the breath after filtering. In the mask, but the filter screen in the filter cavity will cause a large amount of smoke particles to adhere to the filter screen due to the large amount of smoke and dust in the filter cavity, which will make the wearer's breathing difficult, which ...

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