Independent self-rescuer with filter element convenient to replace

Abstract

The invention discloses an independent self-rescuer with a filter element convenient to replace. The independent self-rescuer comprises a main machine box, wherein an upper cover is buckled to the upper end of the main machine box in a matched mode, and back-tying dual-purpose adjusting belts are buckled to the outer walls of the two ends of the main machine box; a cleaning bin and an oxygen bottle storage bin are arranged in the main machine box, an integrated box is arranged at the top of the cleaning bin, and a porous breathing pipe is arranged at the bottom of the integrated box; the bottom of the porous breathing pipe penetrates through a shell at the top of the cleaning bin and extends to the inner bottom of the cleaning bin, a pressing ring is arranged on the inner top wall of the cleaning bin, and the porous breathing pipe movably penetrates through the pressing ring; and an air filter element is arranged on the outer periphery of the porous breathing pipe, one end of the air filter element is connected with the pressing ring, the other end of the air filter element penetrates through an opening formed in the bottom of the cleaning bin and is connected with a sealing cover,and the sealing cover is in threaded connection with the bottom of the cleaning bin. According to the independent self-rescuer, the maintenance work of the self-rescuer is more convenient and faster,the daily maintenance efficiency of maintenance personnel is improved, and the oxygen production efficiency of the self-rescuer is further improved.

Description

technical field [0001] The invention mainly relates to the technical field of self-rescuers, in particular to a self-rescuer with independent and convenient replacement of filter elements. Background technique [0002] Compressed oxygen self-rescuer, also known as isolated compressed oxygen self-rescuer, is a reusable self-rescue and escape device that uses high-pressure compressed oxygen as the oxygen source. Use in times of disaster. The inside of the human respiratory system is isolated from the outside world, and it is used by people in distress to quickly save themselves and escape. It has the characteristics of light weight, small size, comfortable breathing and easy carrying. According to the protection time, there are several specifications of 15, 30, and 45 minutes. [0003] The procedure for replacing the breathing filter element of the existing compressed oxygen self-rescuer is relatively cumbersome. Most of the filter elements are fixed in the designated insta...

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Problems solved by technology

[0003] The replacement steps of the breathing filter element of the existing compressed oxygen self-rescuer are relatively cumbersome. Most of the filter elements are fixed in the designated installation box inside the device. For disassembly, it is necessary to unscrew the screw to open the protective shell, and then remove the cover of the installation box before taking it out. The filter element needs to be replaced, which is not conducive to daily maintenance and replacement work

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