Dustproof semi-mask type individual escaping device for gas explosion under coal mine
A gas explosion and half-mask technology, applied in safety devices, mining equipment, earthwork drilling, etc., can solve the problems of high price, injury, and lack of promotion, and achieve the effect of preventing the respirator from falling off
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[0027] refer to figure 1 , 2, 4, oxygen cylinder 2 is installed on one side of the bottom of housing 13, oxygen cylinder 2, filter 3, pressure reducing valve 4, pressure gauge 5, solenoid valve 7 are screwed together in series, solenoid valve 7, overflow valve 6 outlets Connect with the skin bag 8, the gas conduit 9 connected to the mask is connected with the intake check valve 10, the gas conduit 9 is placed in the skin bag 8, the power supply and the control circuit 1 board are placed in the bottom of the shell under the oxygen cylinder, and the other side of the bottom of the shell Install screen 15, there is CO in the screen 2 Absorbent 14, intake check valve with CO 2 The central hollow pipe in the absorbent 14 is connected, the bottom of the housing 13 is screwed to the sealing cover 16, and there are hanging handles 12 on both sides of the housing 13.
[0028] refer to Figure 2a , b, the upper cover 11 of the skin bag is composed of a fixed upper cover 18 and a mova...
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