CN108514696B

CN108514696B - Fire-fighting self-rescue respirator with poison filtering tank with belt buckle

Info

Publication number: CN108514696B
Application number: CN201810304875.9A
Authority: CN
Inventors: 姜有飞
Original assignee: Zhejiang Daili New Material Technology Co ltd
Current assignee: ZHEJIANG DAILI NEW MATERIAL TECHNOLOGY Co.,Ltd.
Priority date: 2018-04-08
Filing date: 2018-04-08
Publication date: 2020-09-15
Anticipated expiration: 2038-04-08
Also published as: CN111905289A; CN108514696A

Abstract

The invention relates to a fire-fighting apparatus. The utility model provides an establish fire control self-rescuer of canister of taking belt clamp, includes hood and canister, the canister is equipped with the venthole, its characterized in that, be equipped with a pair of canister portion go-between of connecting the bandage usefulness on the canister, be equipped with on the canister portion go-between and supply bandage male opening. The invention aims to provide a fire-fighting self-rescue respirator which is provided with a canister with a belt buckle and can conveniently fix the canister on the head, and the problem that the canister of the existing fire-fighting self-rescue respirator can not be accurately aligned with the mouth and the nose is solved.

Description

Fire-fighting self-rescue respirator with poison filtering tank with belt buckle

Technical Field

The invention relates to fire-fighting equipment, in particular to a fire-fighting self-rescue respirator provided with a canister with a belt buckle.

Background

A self-demand fire-fighting respirator is a tool which is worn for fire fighting and prevents smoke poisoning, and comprises a head cover and a canister for filtering inhaled air. The prior fire-fighting self-rescue respirator has the following defects: the canisters are suspended by the hood to be secured to the head and cannot be accurately aligned with the mouth and nose of the user due to the size differences between different persons.

Disclosure of Invention

The invention aims to provide a fire-fighting self-rescue respirator which is provided with a canister with a belt buckle and can conveniently fix the canister on the head, and the problem that the canister of the existing fire-fighting self-rescue respirator can not be accurately aligned with the mouth and the nose is solved.

The technical problem is solved by the following technical scheme: the utility model provides an establish fire control self-rescuer of canister of taking belt clamp, includes hood and canister, the canister is equipped with the venthole, its characterized in that, be equipped with a pair of canister portion go-between of connecting the bandage usefulness on the canister, be equipped with on the canister portion go-between and supply bandage male opening. When in use, the bandage part connecting ring is arranged on the bandage, the bandage part connecting ring is inserted into the canister part connecting ring through the opening to realize the connection of the bandage and the canister, and then the canister is bound on the head of a user through the bandage to ensure that the canister is accurately aligned with the mouth and nose of the user. And this structure of canister portion go-between makes the tip of bandage buckle earlier and form the bandage portion go-between, assembles the bandage with the canister again to it is convenient when making the equipment. If the end of the strap is inserted into the canister portion coupling ring and then bent and sewn together to form the strap portion coupling ring according to the conventional strap coupling method such as the shoulder strap of a backpack, there is a problem in that the sewing is inconvenient.

Preferably, the bandage is provided with a bandage part connecting ring, the canister part connecting ring is provided with a straight section which is used for penetrating through the bandage part connecting ring, and the opening is arranged on the straight section. The binding band part is easy to be separated from the opening, and the reliability is good.

Preferably, the opening is provided with a lead-in slope. The convenience in assembly can be improved.

Preferably, the strap is of a flat configuration. The reliability in connection is good.

Preferably, a buffer air bag is arranged in the head cover. Safety through the hood.

Preferably, the respirator also comprises a face mask positioned in the hood, the outlet end of the canister and the inlet end of the air outlet one-way valve are communicated with the space surrounded by the face mask, a door closing spring and a door opening structure are arranged in the face shield, an oxygen output port communicated with the buffer air bag is arranged in the face shield, the oxygen outlet is provided with a cover, the door closing spring is used for driving the cover to close the oxygen outlet, the door opening structure is used for overcoming the elasticity of the door closing spring to open the cover, the door opening structure comprises a sliding cylinder, a lever and a driving plug positioned in the sliding cylinder, one end of the lever is connected with the cover, the other end of the lever is connected with the driving plug, the force arm of the driving plug for driving the lever to rotate is larger than that of the closing spring for driving the lever to rotate, and the driving plug divides the sliding cylinder into a closed cavity and an open cavity communicated with the mask; in an initial state, the air pressure of the closed cavity and the air pressure of the open cavity are equal, and the cover closes the oxygen output port; when the pressure in the opening cavity is reduced, the pressure difference between the closing cavity and the opening cavity drives the driving plug to move towards the opening cavity so as to enable the lever to swing and overcome the elastic force of the door closing spring to enable the cover to be opened. When the air bag is used, the air bag is filled with oxygen, and the air pressure in the air bag is greater than 1 standard atmospheric pressure, namely higher than the air pressure outside the air bag. When exhaling, the atmospheric pressure in the face guard risees to make the drive stopper move for moving towards the closed chamber, the structure of removal is that the drive stopper passes through lever drive lid and moves towards the direction of covering to the oxygen export, avoids the oxygen outflow in the buffering gasbag and leads to extravagantly. When the respirator inhales, the air pressure in the mask is reduced, so that the driving plug moves towards the open cavity under the action of pressure difference, the moving structure is that the driving plug drives the cover to be opened through the lever, oxygen in the buffering air bag is prevented from flowing out of the hood and being inhaled by a user along with the gas entering the canister, the oxygen content of the inhaled gas is increased, and discomfort of the user due to oxygen deficiency in a fire area is avoided.

Preferably, the oxygen outlet is communicated with the buffering airbag through a communicating pipe, and a valve is arranged on the communicating pipe. When the oxygen supplementing device is used, the buffer air bag is communicated with the oxygen outlet through the switch valve, so that a user can determine whether to supplement oxygen under the condition of environment.

As preferred, the hood is equipped with the neck cover that the cover was established on user's neck and establishes the section, the section is established to the neck cover is flexible structure, the section is established to the neck cover and is equipped with neck cover and establishes section tightening structure, neck cover establishes section tightening structure and includes along the annular chamber that neck cover established section circumference and extend, the cable is tightly loosened the structure and wears to establish the cable in the annular chamber, the cable is tightly loosened the structure and is included along the arc pipe of annular chamber circumference extension, be equipped with the gap of dodging that extends along arc pipe extending direction on the wall of arc pipe, be equipped with two sliders in the arc pipe and lie in the flexible inflation rod that extends along annular pipe extending direction between two sliders, the both ends of cable cross back one-to-one with two sliders link together, flexible inflation rod is connected with the inflation mouth. The lower end of the head cover can be fixed with the neck in a closing-up mode.

The invention also comprises a control device, wherein two neck sleeve section tightening structures are distributed along the vertical direction, the air charging and discharging ports are connected with a bidirectional air pump, and the control device controls the inhaul cables of the two neck sleeve section tightening structures to be alternately tightened according to a set time interval. Can avoid the neck injury caused by the stay cable being tied tightly at the same position on the neck of the user for a long time.

Preferably, the bidirectional air pump is connected with the buffer air bag.

The invention has the following advantages: the canister can be fixed with the head of a user for the second time; the canister and the bandage are convenient to assemble.

Drawings

FIG. 1 is a schematic diagram of the present invention.

FIG. 2 is a schematic rear view of the canister.

Fig. 3 is a partially enlarged schematic view of a portion a of fig. 1.

Fig. 4 is a schematic top view of the neck cover section tightening structure after the annular cavity is removed.

Fig. 5 is a schematic view showing a connection control relationship between the tightening structure of the neck covering section and the cushion airbag.

In the figure: the gas-liquid separation mask comprises a hood 2, a head sleeving section 21, a neck sleeving section 22, a buffer airbag 23, an oxygen output port 24, a cover 28, a communicating pipe 25, a valve 26, a mask 3, a door closing spring 33, a canister 4, a canister portion connecting ring 46, a straight section 461, an opening 462, an introduction inclined surface 463, a neck sleeving section tightening structure 5, an annular cavity 51, a guy cable 52, one end 521 of the guy cable, the other end 522 of the guy cable, a guy cable fastening and loosening structure 53, an arc-shaped pipe 531, an avoiding gap 5311, a slider 532, a flexible inflating rod 533, and a flexible inflating and deflating rod connecting and inflating port 5331, a control device 534, a two-way air pump 535, an air outlet one-way valve 6, an opening structure 7, a sliding barrel 71, a closed cavity 711, an open cavity 712.

Detailed Description

The invention is further described with reference to the following figures and examples.

Referring to fig. 1, a fire-fighting self-rescue respirator with a poison canister with a belt buckle comprises a hood 2, a face mask 3, a poison canister 4 and an air outlet one-way valve 6.

The hood 2 is provided with a head covering section 21 and a neck covering section 22 covering the neck of the user. The head cover section 21 is provided with a buffer air bag 23. The cushion airbag 23 constitutes an inner surface layer of a portion of the head cover section outside the front side. The neck sleeve section is of a flexible structure. The neck sheathing section is provided with a neck sheathing section tightening structure 5. The neck portion cover is established section tightening structure and is had two and distribute along upper and lower direction. The neck sleeve section tightening structure comprises an annular cavity 51 extending along the circumferential direction of the neck sleeve section, a guy cable fastening and loosening structure and a guy cable 52 arranged in the annular cavity in a penetrating mode. The face mask 3 is located within the hood. The outlet end of the canister 4 and the inlet end of the air outlet one-way valve 6 are fixed with the mask after passing through the hood 2, thereby realizing the communication of the inner space enclosed by the mask.

Referring to fig. 1 and 3, a door closing spring 33 and a door opening structure 7 are provided in the mask. An oxygen output port 24 communicated with the buffer air bag is arranged in the cover body. The oxygen outlet is provided with a lid 28. The door closing spring is used for driving the cover to close the oxygen output port. The door opening structure is used for overcoming the elasticity of the door closing spring to open the cover. The door opening structure includes a slide cylinder 71, a lever 72, and a drive plug 73 located within the slide cylinder. The lever 72 is hinged within the housing 31 by a support pin 74. One end of the lever is connected with the cover, and the other end of the lever is connected with the driving plug. The force arm of the driving plug driving lever rotating by taking the supporting pin as a shaft is larger than the force arm of the door closing spring driving lever rotating by taking the supporting pin as a shaft. The driving plug divides the sliding cylinder into a closed cavity 711 and an open cavity 712 communicated with the mask; in the initial state, the air pressure of the closed cavity and the air pressure of the open cavity are equal, and the cover closes the oxygen output port 24 under the action of the door closing spring; when the air pressure in the mask is reduced during use when the air is inhaled, so that the pressure in the opening cavity is reduced, the pressure difference between the closed cavity and the opening cavity drives the driving plug to move towards the opening cavity, so that the lever swings to overcome the elastic force of the door closing spring, and the cover is opened. When the mask exhales, the pressure in the mask rises, so that the pressure in the opening cavity rises, and the pressure difference between the closing cavity and the opening cavity drives the driving plug to move towards the closing cavity, so that the lever swings to assist the door closing spring to enable the cover to cover the oxygen output port more reliably. The oxygen outlet is communicated with the buffer air bag through a communicating pipe 25. The communicating pipe is provided with a valve 26. Valve 26 is a manual valve.

Referring to fig. 2, the canister rear shell is provided with a pair of canister portion attachment rings 46 for attachment of a strap. The canister portion connecting ring 46 is a rectangular ring. The connecting ring of the canister part is provided with an opening for inserting the bandage. The bandage is provided with a bandage part connecting ring. The canister portion connecting ring is provided with a straight section 461 which is arranged in the binding band portion connecting ring in a penetrating way. The flat section is provided with an opening 462. The outside of the opening is provided with a lead-in chamfer 463. The bandage is flat structure. When in use, the end part of the binding band is bent and sewn together to form the binding band part connecting ring. The strap portion attachment ring is then inserted through the opening into the canister portion attachment ring with the width of the strap aligned with the opening, and the strap is then laid flat on the flat section so that the strap spans the opening in the width direction and does not fall out of the opening. The connecting ring of the canister part and the rear shell are integrally formed.

Referring to fig. 4 and 5, the cable tie-down release structure 53 includes an arced tube 531 extending circumferentially along the annular cavity. The wall of the arc-shaped pipe is provided with an avoiding gap 5311 extending along the extension direction of the arc-shaped pipe. Two sliders 532 and a flexible inflatable rod 533 which is positioned between the two sliders and extends along the extension direction of the annular tube are arranged in the arc tube. The two sliders 532 are connected together by a slider-closing spring (not shown) that drives the two sliders to close. One end 521 of the cable and the other end 522 of the cable are crossed and then are correspondingly connected with the two sliding blocks. The cable tie-down release 53 also includes a control 534. The flexible inflation rod is connected with an inflation and deflation port 5331. The inflation and deflation ports are communicated with the buffer air bag through a bidirectional air pump 535.

Referring to fig. 1, 4 and 5, the control device controls the guy cables of the two neck sleeve section tightening structures to alternately tighten according to a set time interval, specifically, when in use, the guy cable below is firstly tightened to enable the neck sleeve section tightening to tighten on the neck of a user and reduce the external air entering the head cap to stimulate eyes, after a set time length, the guy cable above is tightened to enable the neck sleeve section tightening, after the guy cable above is tightened, the guy cable below is loosened, after the set time length, the guy cable below is tightened to enable the neck sleeve section tightening, and after the guy cable below is tightened, the guy cable above is loosened, so that alternate tightening is realized in a circulating manner.

Referring to fig. 5, the process of tightening and loosening the cable is: when in fastening, the bidirectional air pump inflates the inflatable rod, the inflatable rod inflates and expands to drive the pair of sliding blocks to be separated, so that a ring enclosed by the inhaul cable is reduced, and fastening is realized; when the pull cable is loosened, the gas in the inflation rod is pumped out by the bidirectional inflation pump, so that the inflation rod is deflated and loses the supporting function, and the two sliders are folded under the action of the slider folding spring, so that the pull cable loses the tension force, and the release is realized.

Claims

1. The utility model provides an establish fire control self-rescuer of canister of taking belt clamp, includes hood and canister, the canister is equipped with the venthole, a serial communication port, be equipped with canister portion go-between that a pair of connection bandage was used on the canister, be equipped with on the canister portion go-between and supply bandage male opening, the hood is equipped with the neck cover that the cover was established on user's neck and is established the section, the neck cover is established the section and is flexible structure, the neck cover is established the section and is equipped with neck cover and establishes section tightening structure, neck cover is established section tightening structure and is included along the annular chamber that neck cover established section circumference extension, the cable is tight to be loosened the structure and wears to establish the cable in the annular chamber, the cable is tight to be loosened the structure and is included along the arc pipe of annular chamber circumference extension, be equipped with on the wall of arc pipe along the arc pipe extending along the dodging gap, be equipped with two, The flexible inflation rod is located between the two sliding blocks and extends along the extension direction of the annular pipe, the sliding block folding spring drives the two sliding blocks to fold, two ends of the inhaul cable are connected with the two sliding blocks in a one-to-one correspondence mode after crossing, and the flexible inflation rod is connected with an inflation and deflation port.

2. A fire fighting self-rescue respirator provided with a canister with a belt buckle according to claim 1, characterized in that the strap is provided with a strap portion connecting ring, the canister portion connecting ring is provided with a straight section for passing through in the strap portion connecting ring, and the opening is provided on the straight section.

3. A fire self-rescue respirator provided with a canister with a belt buckle according to claim 1, wherein the opening is provided with a lead-in ramp.

4. A fire fighting self-rescue respirator with a canister with a belt buckle as claimed in claim 1, wherein the strap is of a flat structure.

5. A fire self-rescue respirator provided with a canister with a belt buckle as claimed in claim 1, wherein a buffering air bag is provided in the head cover.

6. The firefighting self-rescue respirator provided with the canister with the belt buckle and comprising the canister with the belt buckle as claimed in claim 5, further comprising a mask positioned in the hood, wherein the outlet end of the canister and the inlet end of the air outlet one-way valve are both communicated with a space surrounded by the mask, a door closing spring and a door opening structure are arranged in the mask, an oxygen outlet communicated with the buffer airbag is arranged in the mask, a cover is arranged at the oxygen outlet, the door closing spring is used for driving the cover to close the oxygen outlet, the door opening structure is used for overcoming the elasticity of the door closing spring to open the cover, the door opening structure comprises a sliding cylinder, a lever and a driving plug positioned in the sliding cylinder, one end of the lever is connected with the cover, the other end of the lever is connected with the driving plug, and the driving plug drives the lever to rotate, wherein the force arm for driving the lever to rotate is larger than the force arm for driving the lever to rotate, the driving plug divides the sliding barrel into a closed cavity and an open cavity communicated with the mask; in an initial state, the air pressure of the closed cavity and the air pressure of the open cavity are equal, and the cover closes the oxygen output port; when the pressure in the opening cavity is reduced, the pressure difference between the closing cavity and the opening cavity drives the driving plug to move towards the opening cavity so as to enable the lever to swing and overcome the elastic force of the door closing spring to enable the cover to be opened.

7. A fire-fighting self-rescue respirator with a poison canister provided with a belt buckle as claimed in claim 6, wherein the oxygen outlet is communicated with the buffering airbag through a communicating pipe, and a valve is arranged on the communicating pipe.

8. A fire-fighting self-rescue respirator with a canister with a belt buckle as claimed in claim 1, further comprising a control device, wherein two tightening structures of the neck sheathing section are distributed along the vertical direction, the air charging and discharging ports are connected with a bidirectional air pump, and the control device controls the pull cables of the two tightening structures of the neck sheathing section to be alternately tightened according to a set time interval.