CN220404658U

CN220404658U - Self-rescue respirator for fire escape

Info

Publication number: CN220404658U
Application number: CN202321315817.9U
Authority: CN
Inventors: 黄仕发; 丁敏
Original assignee: Hainan Huamin Science And Education Co ltd
Current assignee: Hainan Huamin Science And Education Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2024-01-30
Anticipated expiration: 2033-05-26

Abstract

The utility model discloses a fire escape self-rescue respirator, which comprises a helmet, a telescopic rod, a tension spring and a gas hood, wherein the helmet is of a double-layer structure, a gas storage cavity is arranged in the middle of the double-layer structure, oxygen-containing gas is filled in the gas storage cavity, a gas outlet of the gas storage cavity is connected with a pipeline, the pipeline is provided with a valve, the telescopic rod comprises an inner pipe and an outer pipe, the outer pipe is communicated with the pipeline, the inner pipe is connected with the gas hood, the inner pipe is in sliding connection with the outer pipe, the side walls of the inner pipe and the outer pipe are provided with a plurality of ventilation holes, the inner wall of the inner pipe and the outer wall of the outer pipe are provided with filter pieces, the outer pipe is in rotary connection with the helmet, the rear part of the helmet is connected with the gas hood through the tension spring, the gas hood is provided with a bump for hooking the chin of a human body, and the tension spring is inclined upwards in a tensioning state. The utility model balances the stress of the helmet and can filter the air after the stored air is exhausted and supply the air to the human body.

Description

Self-rescue respirator for fire escape

Technical Field

The utility model relates to the technical field of fire escape appliances, in particular to a self-rescue respirator for fire escape.

Background

Fire is a disaster caused by burning which is out of control in time or space, a large amount of thick smoke is generated after the fire occurs, and if the fire is improperly protected, the human body easily sucks the thick smoke into the human body, so that syncope or asphyxia is caused. In order to reduce the risk brought by the trapped person inhaling the dense smoke, the prior art is provided with an oxygen storage tank on the helmet, and oxygen is released by the oxygen storage tank to supply air for the trapped person, so that gaps for inhaling the dense smoke are reduced. However, the oxygen storage tank is directly fixed on the side surface of the helmet, so that the helmet has the defect of unbalanced stress on the head after being worn, the space inside the helmet can not be fully utilized, and meanwhile, the air in the environment can not be filtered and supplied to a human body after the oxygen is exhausted due to the limited air storage amount of the oxygen storage tank.

Disclosure of Invention

Aiming at the prior art, the utility model aims to provide the self-rescue respirator for fire fighting, fire disaster escape, so that the stress of the helmet is balanced, and air can be filtered after stored gas is exhausted and then supplied to a human body.

The technical scheme of the utility model is realized as follows:

the utility model provides a fire control conflagration self-rescue respirator that flees, includes helmet, telescopic link, tension spring and gas hood, the helmet is bilayer structure, bilayer structure's centre is the gas storage chamber, the gas storage intracavity is equipped with oxygen-containing gas, the gas outlet and the pipe connection of gas storage chamber, the pipeline is equipped with the valve, the telescopic link includes inner tube and outer tube, the outer tube with the pipeline intercommunication, the inner tube with the gas hood is connected, the inner tube with outer tube sliding connection, the lateral wall of inner tube and outer tube is equipped with a plurality of air vents, the inner wall of inner tube and the outer wall of outer tube are equipped with the filter piece, the outer tube with the helmet rotates to be connected, the rear of helmet passes through tension spring with the gas hood is connected, the gas hood is equipped with the lug that hooks human chin, tension spring and tilt up under taut state.

Further, the gas hood is elastic, and the gas hood is provided with a one-way exhaust breather valve.

Furthermore, the helmet is provided with a universal joint, and the outer tube is connected with the universal joint.

Further, the pipeline comprises a hose and an L-shaped pipe, the L-shaped pipe penetrates through the side wall of the outer pipe, the L-shaped pipe is fixedly connected with the outer pipe, and the hose is connected with the L-shaped pipe.

Further, the valve with L shape union coupling, be equipped with the reel on the valve rod of valve, the valve rod is equipped with spiral arch, the reel be equipped with spiral protruding complex helicine, the tip of reel is equipped with spacing arch, the valve rod be equipped with spacing protruding complex gag lever post, the valve rod is equipped with the drive the torsion spring that the reel reset, the reel is equipped with the stay cord, the other end of stay cord with the inner tube coupling.

Further, the valve rod is connected with a rotating rod, and the rotating rod extends out of the outer tube.

Further, a sealing ring is arranged between the outer tube and the rotating rod, and a knob is arranged on the rotating rod.

The utility model has the beneficial effects that: the air storage cavity is positioned in the helmet, so that the space of the helmet is effectively utilized, and the stress balance of the head of a human body is ensured. Because the outer tube with the helmet rotates to be connected, consequently can be through rotating the length of outer tube and adjusting the telescopic link for the gas hood is aimed at human mouth and nose, and under tension spring's elasticity effect, the gas hood upwards moves backward, and makes the lug card at human chin, makes the position of gas hood fixed, and under tension spring's elasticity effect the gas hood tightly covers human mouth and nose, and sealing performance is good. After the gas in the gas holder is emptied, form the negative pressure in inner tube and outer tube when the human body inhales to inhale external air from the air vent, form high pressure in inner tube and outer tube when exhaling, discharge gas from the air vent, be provided with the filter piece on the air vent, the filter piece is with the impurity filtration back in the air, avoids human body to inhale impurity, can improve the time that the human body waited for the rescue.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only preferred embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a side view of a self-rescue respirator for fire escape according to embodiment 1 of the present utility model;

FIG. 2 is a cross-sectional view of a self-rescue respirator for fire escape according to embodiment 1 of the present utility model;

FIG. 3 is a cross-sectional view of a telescopic rod according to embodiment 2 of the present utility model;

FIG. 4 is an enlarged view of area A of FIG. 3;

FIG. 5 is a perspective view of a reel according to embodiment 2 of the present utility model;

in the figure, 1 helmet, 2 tension springs, 3 gas hoods, 4 gas storage cavities, 5 valves, 6 inner pipes, 7 outer pipes, 8 vent holes, 9 filter sheets, 10 convex blocks, 11 breather valves, 12 universal joints, 13 flexible pipes, 14L-shaped pipes, 15 valve rods, 16 reels, 17 spiral bulges, 18 spiral grooves, 19 limit bulges, 20 limit rods, 21 torsion springs, 22 pull ropes, 23 rotary rods, 24 sealing rings and 25 knobs.

Detailed Description

For a better understanding of the technical content of the present utility model, specific examples are provided below and the present utility model is further described with reference to the accompanying drawings.

Example 1

Referring to fig. 1-2, the self-rescue respirator for fire fighting and fire disaster escape comprises a helmet 1, a telescopic rod, a tension spring 2 and a gas hood 3, wherein the helmet 1 is of a double-layer structure, a gas storage cavity 4 is arranged in the middle of the double-layer structure, oxygen-containing gas is filled in the gas storage cavity 4, the gas containing oxygen is stored in the gas storage cavity 4, and the space at the top of the helmet 1 is effectively utilized. The gas storage cavity 4 stores a proper amount of pressure gas, the thickness of the inner layer of the helmet 1 is larger than that of the outer layer, and the safety performance of the gas storage space is improved. The air storage cavity 4 is positioned in the helmet 1, effectively utilizes the space of the helmet 1 and ensures the stress balance of the head of a human body. The gas outlet of the gas storage cavity 4 is connected with a pipeline, the pipeline is provided with a valve 5, the discharge of gas is controlled through the valve 5, the telescopic rod comprises an inner pipe 6 and an outer pipe 7, the outer pipe 7 is communicated with the pipeline, the gas discharged from the gas storage cavity 4 slowly flows into the outer pipe 7, the inner pipe 6 is connected with the gas hood 3, and the gas finally flows into the gas hood 3 to supply oxygen to a human body. The inner tube 6 is slidably connected with the outer tube 7, and the length of the telescopic rod is adjusted by sliding, so that the air hood 3 can cover the mouth and nose parts of a human body. The side walls of the inner tube 6 and the outer tube 7 are provided with a plurality of vent holes 8, external gas can enter from the vent holes 8, gas in the inner tube 6 and the outer tube 7 can be discharged from the vent holes 8, filter plates 9 are arranged on the inner wall of the inner tube 6 and the outer wall of the outer tube 7, and the gas is filtered by the filter plates 9. Preferably, the tension spring 2 and the telescopic rod are symmetrically arranged on two sides of the helmet 1.

When the helmet is used, the outer tube 7 is rotationally connected with the helmet 1, so that the air hood 3 can cover the mouth and the nose of a human body by rotating the outer tube 7 and adjusting the length of the telescopic rod, the rear part of the helmet 1 is connected with the air hood 3 through the tension spring 2, the air hood 3 is provided with the convex block 10 for hooking the chin of the human body, the tension spring 2 is inclined upwards in a tensioning state, the air hood 3 moves upwards and backwards under the action of the elasticity of the tension spring 2, the convex block 10 is clamped on the chin of the human body, the position of the air hood 3 is fixed, and the air hood 3 tightly covers the mouth and the nose of the human body under the action of the elasticity of the tension spring 2. The trapped person opens the valve 5, the gas in the gas storage cavity 4 is slowly discharged, and the gas is inhaled by a human body after passing through the pipeline, the valve 5, the outer pipe 7, the inner pipe 6 and the gas hood 3, so as to provide oxygen for the trapped person. In the process of continuously supplying air to the air storage tank, oxygen-containing gas can be inhaled when a human body inhales, and the gas is discharged from the vent hole 8 when the human body exhales. Preferably, the gas hood 3 is provided with a one-way exhaust breather valve 11, when the gas storage tank is continuously supplied with gas, the gas exhaled by the human body is exhausted from the breather valve 11, and when the human body inhales, the oxygen-containing gas is inhaled. After the air in the air storage tank is emptied, negative pressure is formed in the inner pipe 6 and the outer pipe 7 when a human body inhales, so that external air is inhaled from the vent hole 8, high pressure is formed in the inner pipe 6 and the outer pipe 7 when the human body exhales, the air is discharged from the vent hole 8, the filter disc 9 is arranged on the vent hole 8, and after the filter disc 9 filters impurities in the air, the human body is prevented from inhaling the impurities, and the time of waiting for rescue of the human body can be prolonged. When the breathing valve 11 is provided in the gas hood 3, the human body exhales and is directly discharged from the breathing valve 11 after the gas in the gas storage tank is exhausted, the breathing valve 11 is closed when the human body inhales, and the gas is filtered by the filter sheet 9 and inhaled by the human body.

Specifically, the air cover 3 has elasticity, so that the tightness between the air cover 3 and the mouth and nose of a human body is improved.

Specifically, the helmet 1 is provided with a universal joint 12, the outer tube 7 is connected with the universal joint, and the angle of the telescopic tube can be adjusted in multiple directions, so that the air hood 3 is tightly attached to the mouth and nose of a human body.

Specifically, the pipeline includes hose 13 and L-shaped pipe 14, L-shaped pipe 14 runs through the lateral wall of outer tube 7, and the one end of L-shaped pipe 14 is located outer tube 7, and the other end is located outer tube 7, L-shaped pipe 14 with outer tube 7 fixed connection, hose 13 with L-shaped pipe 14 is connected, makes things convenient for the connection and the installation of pipeline. Preferably, the hose 13 is plugged into the L-shaped tube 14 and is locked in place by means of a locking clip on the hose 13.

Example 2

Referring to fig. 1 to 4, this embodiment is different from embodiment 1 in that the valve 5 is connected to the L-shaped pipe 14 such that the stem 15 of the valve 5 is perpendicular to the length direction of the outer pipe 7. A spool 16 is provided on the valve stem 15 of the valve 5, the valve stem 15 is provided with a helical protrusion 17, the spool 16 is provided with a helical groove 18 cooperating with the helical protrusion 17, so that the spool 16 can rotate around the valve stem 15 and move along the valve stem 15 when rotating. The valve rod 15 is provided with a torsion spring 21 for driving the reel 16 to reset, and when the reel 16 rotates, the torsion spring 21 is driven to deform and store energy, and the stored energy is utilized to drive the reel 16 to reset. According to the utility model, the reel 16 is provided with the pull rope 22, the other end of the pull rope 22 is connected with the inner tube 6, when a trapped person wears the helmet 1, the inner tube 6 is pulled to move downwards, so that the reel 16 is pulled to rotate through the pull rope 22, after the inner tube 6 is pulled to reach a preset distance, the reel 16 also moves along one end distance of the valve rod 15, as the end part of the reel 16 is provided with the limit protrusion 19, the valve rod 15 is provided with the limit rod 20 matched with the limit protrusion 19, when the limit protrusion 19 is blocked by the limit rod 20, the rotation of the reel 16 drives the valve rod 15 to rotate, and the valve 5 is opened, so that the problem that the trapped person cannot open the valve 5 under the condition of confusion is solved. Meanwhile, the valve 5 can be opened only after one end of the inner tube 6 needs to be pulled for a distance, so that the valve 5 is prevented from being opened by error touch. After the inner tube 6 is pulled downwards by a small distance by mistake, the pull rope 22 can be wound again when the inner tube 6 moves upwards to reset, so that the pull rope 22 is prevented from knotting.

Specifically, the valve rod 15 is fixedly connected with a rotating rod 23, the rotating rod 23 extends out of the outer tube 7, and the valve 5 can be controlled to be closed by rotating the rotating rod 23 outside.

Specifically, a sealing ring 24 is arranged between the outer tube 7 and the rotating rod 23, so that the tightness is improved, and gas leakage is avoided. The rotary rod 23 is provided with a knob 25, which is convenient for controlling the rotary rod 23.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a fire control conflagration escape self-rescue respirator, its characterized in that, including helmet, telescopic link, tension spring and gas hood, the helmet is bilayer structure, bilayer structure's centre is the gas storage chamber, the gas storage intracavity is equipped with oxygen-containing gas, the gas outlet and the pipe connection of gas storage chamber, the pipeline is equipped with the valve, the telescopic link includes inner tube and outer tube, the outer tube with the pipeline intercommunication, the inner tube with the gas hood is connected, the inner tube with outer tube sliding connection, the lateral wall of inner tube and outer tube is equipped with a plurality of air vents, the inner wall of inner tube and the outer wall of outer tube are equipped with the filter disc, the outer tube with the helmet rotates to be connected, the rear of helmet passes through tension spring with the gas hood is connected, the gas hood is equipped with the lug that hooks human chin, tension spring is under the tensioning state with upward slope.

2. The fire escape self-rescue respirator of claim 1, wherein the gas hood has elasticity and is provided with a one-way exhaust breathing valve.

3. The fire escape self-rescue respirator of claim 1, wherein the helmet is provided with a universal joint, and the outer tube is connected with the universal joint.

4. The fire escape self-rescue respirator of claim 1, wherein the pipeline comprises a hose and an L-shaped pipe, the L-shaped pipe penetrates through the side wall of the outer pipe, the L-shaped pipe is fixedly connected with the outer pipe, and the hose is connected with the L-shaped pipe.

5. The self-rescue respirator for fire escape from fire disaster according to claim 4, wherein the valve is connected with the L-shaped pipe, a reel is arranged on a valve rod of the valve, a spiral protrusion is arranged on the valve rod, a spiral groove matched with the spiral protrusion is arranged on the reel, a limit protrusion is arranged at the end part of the reel, a limit rod matched with the limit protrusion is arranged on the valve rod, a torsion spring for driving the reel to reset is arranged on the valve rod, a pull rope is arranged on the reel, and the other end of the pull rope is connected with the inner pipe.

6. The fire escape self-rescue respirator of claim 5, wherein the valve rod is connected with a rotary rod, and the rotary rod extends out of the outer tube.

7. The self-rescue respirator of claim 6, wherein a sealing ring is arranged between the outer tube and the rotating rod, and a knob is arranged on the rotating rod.