CN213698611U - Mask isolated compressed oxygen self-rescuer - Google Patents

Abstract

The utility model discloses an isolated formula compressed oxygen self-rescuer of face guard, the power distribution box comprises a box body, the inside oxygen cylinder that is fixed with of box, and oxygen cylinder top intercommunication have the outlet duct, the choke valve is installed to outlet duct upper end front side, and installs the manometer on the outlet duct upper end rear side, the outlet duct top communicates with the gasbag bottom, and the gasbag intercommunication is in the box top, gasbag top intercommunication has the oronasal mask, and the oronasal mask top is fixed with safety glasses. This isolated formula compressed oxygen self-rescuer of face guard is provided with the oronasal mask, safety glasses and rubber sealing strip, oronasal mask and safety glasses all fix at stranded personnel head through the elastic cord, oronasal mask all pastes tight stranded personnel face through rubber sealing strip with safety glasses simultaneously, separate through rubber sealing strip between oronasal mask and the safety glasses, when making safety glasses play the protection stranded personnel glasses, the problem that the vapor that contains in having avoided stranded personnel's expiration blockked the field of vision easily.

Description

Mask isolated compressed oxygen self-rescuer

Technical Field

The utility model relates to a compressed oxygen self-rescuer technical field specifically is an isolated formula compressed oxygen self-rescuer of face guard.

Background

When the coal mine has an accident, a large amount of toxic gas is contained in the mine tunnel, the compressed oxygen self-rescuer can provide a large amount of clean air for trapped people, and the trapped people can conveniently pass through the mine tunnel to complete self-rescue.

The existing compressed oxygen self-rescuer is usually only provided with a mouth tool and a nose clip, the protection measure only can play a protection role on the mouth and nose parts of trapped people, but part of toxic gas has strong irritation, the glasses of the trapped people are easy to stimulate, the trapped people are difficult to see the road, the trapped people are difficult to escape, in order to prevent poisoning of the trapped people caused by overhigh carbon dioxide concentration, the existing compressed oxygen self-rescuer generally discharges the gas exhaled by the trapped people, but the exhaled gas still contains a large amount of oxygen, the part of oxygen is wasted, the service life of the compressed oxygen self-rescuer is short, the utilization efficiency is low, and aiming at the problems, the existing equipment needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an isolated formula compressed oxygen self-rescuer of face guard, only be provided with oral utensils and nose clip with the current compressed oxygen self-rescuer that proposes in solving above-mentioned background art usually, this kind of safeguard measure only can play the guard action to stranded personnel's oronasal part, but some toxic gas has strong irritability, easy amazing stranded personnel's glasses, it is difficult to see the road to make stranded personnel, lead to the stranded personnel difficulty of fleing, lead to stranded personnel to be poisoned in order to prevent that carbon dioxide concentration is too high, current compressed oxygen self-rescuer is gaseous the discharge of stranded personnel's exhalation usually, nevertheless still contain a large amount of oxygen in the exhalation gas, this part oxygen is wasted, make this compressed oxygen self-rescuer's live time short, the problem of utilization efficiency low.

In order to achieve the above object, the utility model provides a following technical scheme: a mask isolated compressed oxygen self-rescuer comprises a box body, wherein an oxygen tank is fixed in the box body, an oxygen tank top is communicated with an outlet pipe, a throttling valve is installed on the front side of the upper end of the outlet pipe, a pressure gauge is installed on the rear side of the upper end of the outlet pipe, the top of the outlet pipe is communicated with the bottom of an air bag, the air bag is communicated above the box body, an oronasal mask is communicated above the air bag, protective glasses are fixed on the top of the oronasal mask, rubber sealing strips are bonded on the rear side of the protective glasses and the rear side of the oronasal mask, elastic bands are fixed on the left side of the protective glasses and the left side of the oronasal mask, a gas return pipe is communicated on the left side of the bottom of the oronasal mask, a first check valve is installed inside the gas return pipe, an air inlet pipe is, and the carbon dioxide absorbent is stored in the material box.

Preferably, the oronasal mask is in a state of communication with the air bag through the first check valve, and in a state of sealing between the air bag and the oronasal mask.

Preferably, the oronasal mask is in a sealed state by the second air cell, and the air cell and the oronasal mask are in a communicated state.

Preferably, the protective glasses and the oronasal mask form two non-communicated sealing protective devices through rubber sealing strips.

Preferably, the lower end of the air inlet pipe is communicated with the top of the air bag, and the left lower side of the air bag is communicated with the lower end of the air return pipe.

Preferably, the carbon dioxide absorbent has calcium hydroxide as a main component.

Compared with the prior art, the beneficial effects of the utility model are that: the mask isolation type compressed oxygen self-rescuer,

(1) the compressed oxygen self-rescuer is provided with an air return pipe, an air inlet pipe and a material box, wherein the first one-way valve and the second one-way valve are matched to control the flow direction of air flow, when trapped people inhale air, air in the air bag enters the mouth-nose mask through the air inlet pipe, when the trapped people exhale air, the air in the air bag returns to the interior of the air bag through the air return pipe, and when the air passes through the material box on the air return pipe, a carbon dioxide absorbent in the material box uniformly absorbs carbon dioxide in the air, so that the content of the carbon dioxide is reduced, the effect of recycling the exhaled air of the trapped people is facilitated, and the;

(2) be provided with the oronasal mask, safety glasses and rubber sealing strip, oronasal mask and safety glasses all fix at stranded personnel head through the elastic cord, and oronasal mask and safety glasses all paste tight stranded personnel face through rubber sealing strip simultaneously, separate through rubber sealing strip between oronasal mask and the safety glasses, when making safety glasses play the protection stranded personnel glasses, have avoided the steam that contains in the stranded personnel exhale to block the problem in the field of vision easily.

Drawings

Fig. 1 is a schematic view of the front view cross section structure of the utility model in the unfolded state;

FIG. 2 is a schematic view of the rear view cross-section of the mask in an expanded state of the present invention;

FIG. 3 is a schematic view of the sectional structure of the storage state of the present invention;

fig. 4 is a schematic view of the storage state of the cross-sectional structure of the present invention.

In the figure: 1. the oxygen-enriched air-conditioning device comprises a box body, 2, an oxygen tank, 3, an air outlet pipe, 4, a throttling valve, 5, a pressure gauge, 6, an air bag, 7, an oronasal mask, 8, protective glasses, 9, a rubber sealing strip, 10, an elastic band, 11, an air return pipe, 12, a first check valve, 13, an air inlet pipe, 14, a second check valve, 15, a material box, 16 and a carbon dioxide absorbent.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: mask isolated compressed oxygen self-rescuer, as shown in fig. 1, fig. 2 and fig. 3, an oxygen tank 2 is fixed in a box body 1, the top of the oxygen tank 2 is communicated with an outlet pipe 3, a throttle valve 4 is installed on the front side of the upper end of the outlet pipe 3, a pressure gauge 5 is installed on the rear side of the upper end of the outlet pipe 3, the top of the outlet pipe 3 is communicated with the bottom of an air bag 6, the air bag 6 is communicated with the upper part of the box body 1, an oronasal mask 7 is communicated with the upper part of the air bag 6, protective glasses 8 are fixed on the top of the oronasal mask 7, the oronasal mask 7 is communicated with the air bag 6 through a first one-way valve 12, a closed state is formed between the air bag 6 and the oronasal mask 7, when a trapped person exhales, air leaves the oronasal mask 7 through a return pipe 11 under the action of positive pressure, the oro, when stranded personnel breathe in, make the air pass through intake pipe 13 entering mouth nose cup 7 under the effect of negative pressure, 8 rear sides of safety glasses and 7 rear sides of mouth nose cup all bond there is rubber seal strip 9, and 8 left and right sides of safety glasses and 7 left and right sides of mouth nose cup all are fixed with elastic cord 10, safety glasses 8 and mouth nose cup 7 constitute two sealed protective equipment that do not communicate through rubber seal strip 9, the easy adhesion of the steam that produces when having solved stranded personnel and exhaling produces is at the problem of 8 inboard production water smoke of safety glasses.

As shown in fig. 1, fig. 2 and fig. 4, the left side of the bottom of the oral-nasal mask 7 is communicated with the air return pipe 11, the air return pipe 11 is internally provided with a first check valve 12, the right side of the bottom of the oral-nasal mask 7 is communicated with the air inlet pipe 13, the air inlet pipe 13 is internally provided with a second check valve 14, the lower end of the air inlet pipe 13 is communicated with the top of the air bag 6, the lower left side of the air bag 6 is communicated with the lower end of the air return pipe 11, the flowing distance of the circulating air in the air bag 6 is prolonged, so that the air in the air bag 6 is more uniformly mixed, the middle part of the air return pipe 11 is provided with the material box 15, the carbon dioxide absorbent 16 is stored in the material box 15, the main component of the carbon dioxide absorbent 16 is calcium hydroxide, the air exhaled by trapped people is uniformly contacted with the.

The working principle is as follows: when the mask isolated compressed oxygen self-rescuer is used, firstly, the hasp is opened, the case cover is taken down, the oronasal mask 7 and the protective glasses 8 are taken up, the oronasal mask 7 and the protective glasses 8 are worn on the head of a trapped person through the elastic band 10, at the moment, the oronasal mask 7 and the rubber sealing strip 9 on the rear side of the protective glasses 8 are attached to the face of the trapped person, the sealing effect is achieved, the throttle valve 4 is opened simultaneously, the speed of oxygen discharged by the oxygen tank 2 through the air outlet pipe 3 is controlled, oxygen in the oxygen tank 2 enters the air bag 6 through the air outlet pipe 3, the trapped person inhales air, air in the air bag 6 enters the inside of the oronasal mask 7 through the air inlet pipe 13 under the action of negative pressure, then the trapped person exhales, under the action of positive pressure, the air in the oronasal mask 7 returns to the bottom of the air bag 6 through the air return pipe 11, the exhaled air is uniformly mixed with the air in, the carbon dioxide absorbent 16 in the material box 15 absorbs carbon dioxide in the expired air rapidly, the problem that the concentration of carbon dioxide rises due to the recycling of air, so that trapped people carbon dioxide is caused is solved, the glasses 8 protect the glasses of the trapped people from being affected by irritant gas, the trapped people can observe road conditions and get away from dangerous areas conveniently, the pressure gauge 5 facilitates the trapped people to judge the oxygen content in the oxygen tank 2, and therefore all work is completed, and the content which is not described in detail in the specification belongs to the prior art which is known to professional technicians in the field.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides an isolated formula compressed oxygen self-rescuer of face guard, includes box (1), its characterized in that: the oxygen tank (2) is fixed in the box body (1), the top of the oxygen tank (2) is communicated with the air outlet pipe (3), the throttling valve (4) is installed on the front side of the upper end of the air outlet pipe (3), the pressure gauge (5) is installed on the rear side of the upper end of the air outlet pipe (3), the top of the air outlet pipe (3) is communicated with the bottom of the air bag (6), the air bag (6) is communicated with the upper portion of the box body (1), the air bag (6) is communicated with the oronasal mask (7), the protective glasses (8) are fixed on the top of the oronasal mask (7), the rubber sealing strips (9) are bonded on the rear sides of the protective glasses (8) and the rear sides of the oronasal mask (7), elastic bands (10) are fixed on the left side of the protective glasses (8) and the left side of the oronasal mask (7), the air return pipe (11) is communicated with the left side, the right side of the bottom of the oronasal mask (7) is communicated with an air inlet pipe (13), the air inlet pipe (13) is internally provided with a second one-way valve (14), the middle of the air return pipe (11) is provided with a material box (15), and a carbon dioxide absorbent (16) is stored in the material box (15).

2. The mask-insulated compressed oxygen self-rescuer of claim 1, wherein: the mouth-nose mask (7) is communicated with the air bag (6) through the first one-way valve (12), and the air bag (6) is sealed with the mouth-nose mask (7).

3. The mask-insulated compressed oxygen self-rescuer of claim 1, wherein: the mouth-nose mask (7) forms a closed state through the second air bag (6), and the air bag (6) and the mouth-nose mask (7) form a communicated state.

4. The mask-insulated compressed oxygen self-rescuer of claim 1, wherein: the protective glasses (8) and the mouth-nose mask (7) form two sealing protective devices which are not communicated through a rubber sealing strip (9).

5. The mask-insulated compressed oxygen self-rescuer of claim 1, wherein: the lower end of the air inlet pipe (13) is communicated with the top of the air bag (6), and the lower left side of the air bag (6) is communicated with the lower end of the air return pipe (11).

6. The mask-insulated compressed oxygen self-rescuer of claim 1, wherein: the carbon dioxide absorbent (16) comprises calcium hydroxide as a main component.

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