KR950005413Y1 - Breathing mask - Google Patents

Abstract

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Description

Fire Respirator

1 is an exploded perspective view applying the present invention to an air respirator.

2 is an assembled perspective view of the present invention.

3a, b is an explanatory view of the exhaust switching state of the present invention.

Figure 4a, b is an explanatory view of the intake and exhaust switching state by the rotation of the present invention.

5 is a side view of a conventional respirator.

* Explanation of symbols for main parts of the drawings

10: air respirator 20: lower case

30: pad control body 40: upper case

The present invention relates to an air respirator for fire suppression, and more particularly to an air respirator that facilitates switching between intake and exhaust by a simple operation.

Conventional fire extinguishing air respirators are designed to supply the compressed air stored in the air respirator for use for a certain period of time in various toxic gases, and to exhaust the air supplied to the air respirator. In addition to the air supplied from the compressed air tank, there is no separate suction device, so it was impossible to wear an air respirator when the air in the compressed air tank was exhausted.

In addition, the fire suppression air breathing apparatus is also important to protect the face from debris or fires in case of fire, so it should always be worn at the fire site, but in a situation where toxic gas is not emitted to use only when compressed air is needed for breathing air. I couldn't wear an air respirator.

The present invention has been devised to effectively solve these problems in view of the conventional problems, and by applying a structure capable of exhaust and intake to the exhaust port of the air respirator, by facilitating the exhaust and intake switching by simple operation, the purpose of face protection When the air intake is changed, the air is breathed into the air. When compressed air is required due to toxic gas, the air is switched to the exhaust state, which effectively blocks the outside air so that the air can be efficiently breathed. The purpose is to be able to continue working in the state always wearing the air respirator, the configuration thereof will be described in detail by the accompanying drawings as follows.

In the conventional air respirator 10 composed of the compressed air intake port 11, the exhaust port 13, and the see-through window 12, the packing seating portion is provided around the bottom surface at a position except for the exhaust side configured to be exhausted in the exhaust port 13; And a lower case 20 having an inward protrusion 22 and an indentation 21 on the side, and on the bottom of the packing seat 23 of the lower case 20. By seating the opening and closing control body 30 fitted with the sealing packing 31, by inserting the fitting rod 43 to the insertion tube 32 in the opening and closing control body 30 by placing the coil spring 34 The upper case 40 is elastically installed, and the upper case 40 is fitted into the groove 21 of the lower case 20 by a screw 41 to be coupled together when opening and closing the upper case 40 left and right. Adjuster 30 is also rotated so that the inclined surface of the corrugated guide plate 33 formed on the outer surface of the opening and closing control body 30 is in the lower case 20 By moving along the protrusion pieces 22 are configured to call the intake and exhaust conditions.

The effects of the present invention configured as described above are as follows.

As shown in FIG. 3, in FIG. 3A in which the exhaust state roll is switched, the packing seating portion 23 of the lower case 20 is opened and closed by the restoring force of the coil spring 34 as in the normal exhaust valve. When the pressure of the exhaust gas (G) increases during respiration, the packing adjusting body 30 is pushed out of the opening and closing seat 23 by the pressure as shown in FIG. When exhausted through the through-hole 42 of the upper cover 40 and at the same time the exhaust pressure in the air respirator is lowered, the vertical and vertical movements that are in close contact again by the restoring force of the coil spring 34 in the state of FIG. 3a are repeated.

In this way, the opening and closing control body 30 is inserted into the insertion tube (32) by inserting the bar 43, the vertical movement, that is, when the exhaust pressure in the air respirator is increased by the exhaust pressure, on the contrary, when the exhaust pressure is low There is a respiratory movement by the restoring force of the coil spring (34) while breathing while blocking the toxic gas to the outside, the air required for breathing is to be supplied from the compressed air tank.

And, when there is no toxic gas in the atmosphere and can breathe with the air in the atmosphere, the transition to the intake state is performed by moving the upper case 40 as shown in FIG. 4A, that is, in the exhaust state, as shown in FIG. 4B. When rotated to the right by a certain angle, the upper case 40 and the opening and closing control body 30 are fitted by a plurality of fitting rods 44 and the insertion tube 32, so the opening and closing control body 30 is also moved to the right side. At this time, the inclined surface of the corrugated guide plate 33 formed on the outer surface of the opening and closing control body 30 moves the inward protrusion piece 22 of the lower case 20 by the opening and closing control body 30 to the upper side. When moving, the lower end of the guide plate 33 is moved to the upper end of the inward projection piece 22 is completed to move to the upper side of the opening and closing control body 30 is fixed.

In this way, the opening and closing adjuster 30 is fixed by moving to the upper side at the same time as the rotation at the same angle as the upper case 40 by a plurality of fitting rods 44 and a plurality of insertion pipes 32, such an open state The outside air flows into the upper cover 40 through the through hole 42 and passes through the inlet of the guide plate 33 formed around the opening / closing control body 30 and the air passage in the lower case 20. Since it is injected into the inside, breathing with the atmosphere is possible.

Rotation of the upper case 40 as described above is to rotate by rotating the screw end 41a along the groove 21 of the lower case 20, the predetermined angle is accurately rotated according to the length of the groove (21). Coil spring 34 is omitted in the partial cross-sectional perspective view of FIGS. 3 and 4.

By using this method, you can breathe with outside air, so you can protect your face from fire and debris without losing compressed air, as well as breathing with the atmosphere as well as breathing with compressed air. It is a useful design that can be used effectively.

Claims (1)

(Correct) In the normal air respirator 10 composed of the compressed air intake port 11, the exhaust port 13 and the see-through window 12, the packing seating portion 23 around the bottom face is positioned at the position where the exhaust side of the exhaust port 13 is removed. And a lower case 20 having an inward protrusion 22 and an indentation 21 on the side on the inner side, and sealing on the bottom of the packing seating portion 23 of the lower case 20. While seating the opening and closing control body 30 fitted with (31), the opening and closing control body 30 by inserting the fitting rod 43 to the insertion tube 32 and the coil spring 34 through the upper case ( 40 is installed elastically, the upper case 40 is coupled to the groove 21 of the lower case 20 by a screw 41 is coupled to the left and right when opening and closing the upper case 40 when the upper and lower control body ( 30 is also rotated so that the inclined surface of the guide plate 33 formed on the outer surface of the opening and closing adjuster 30 moves along the inwardly facing piece 22 of the lower case 20 The fire respirator for suppressing fire, characterized in that the switch to the intake and exhaust state.