CN108514697B

CN108514697B - Integrally-connected clamping fixed type fire-fighting self-rescue respirator

Info

Publication number: CN108514697B
Application number: CN201810304888.6A
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: 2020-06-30
Anticipated expiration: 2038-04-08
Also published as: CN108514697A; CN111714795A

Abstract

The invention relates to a fire-fighting apparatus. The utility model provides a fixed fire control self-rescue respirator of body coupling centre gripping, include hood, canister and be located the inside face guard of hood, the canister is equipped with the venthole, the face guard is equipped with first connect the through-hole, the venthole is to having the outlet duct, the outlet duct is equipped with a plurality of pipe portion elasticity lamellas of giving vent to anger, be equipped with the pipe portion barb of giving vent to anger on the outer peripheral face of the pipe portion elasticity lamella of giving vent to anger, the pipe portion elasticity lamella of giving vent to anger wears to establish in first connect the through-hole and give vent to anger the pipe portion barb and connect in first connect the through-hole and fix canister and face guard together, canister cooperation face guard of canister holds the wall of hood and. The invention aims to provide an integrally-connected clamping fixed type fire-fighting self-rescue respirator which has good smoothness during breathing and can be quickly assembled, and solves the problems that the existing fire-fighting self-rescue respirator has poor smoothness during breathing and takes time when a canister is fixed.

Description

Integrally-connected clamping fixed type fire-fighting self-rescue respirator

Technical Field

The invention relates to fire-fighting equipment, in particular to an integrally connected and clamped fixed fire-fighting self-rescue respirator.

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 canister is through seting up the hole on the hood, then wear to establish the canister in the hole and then tighten up the hole of hood and tie up the fixed of canister with the hood on the canister, and the mode of bandage has the not enough that consumes man-hour many when the assembly.

Disclosure of Invention

The invention aims to provide an integrally-connected clamping fixed type fire-fighting self-rescue respirator which has good smoothness during breathing and can be quickly assembled, and solves the problems that the existing fire-fighting self-rescue respirator has poor smoothness during breathing and takes time when a canister is fixed.

The technical problem is solved by the following technical scheme: the utility model provides a fixed fire control self-rescue respirator of body coupling centre gripping, includes hood, canister and is located the inside face guard of hood, the canister is equipped with the venthole, the face guard is equipped with first connect the through-hole, the venthole is to having the outlet duct, the outlet duct is equipped with a plurality of outlet duct portion elastic lamella that distribute axial extension along outlet duct circumference, be equipped with the pipe portion barb of giving vent to anger on the outer peripheral face of the pipe portion elastic lamella of giving vent to anger, the pipe portion elastic lamella of giving vent to anger wears to establish in the first connect the through-hole and give vent to anger the pipe portion barb hookup in the first connect the through-hole and will canister and face guard are fixed together, canister cooperation of canister the face guard centre gripping the wall of hood and make canister, mask and hood fixed together, the outlet duct with. When the respirator hood is used, the hood cover covers the mouth and the nose of a user when the respirator hood is used, so that the effect of reducing the space around the mouth and the nose is achieved, the air pressure at the air outlet end of the canister is reduced by a large amount when the respirator hood inhales, the smoothness of the air outside the hood entering the hood is improved, and the user is not easy to feel closed. When this technical scheme assembles, only need insert the fixed that first connecting through-hole can realize canister and hood through the inlet duct portion elasticity lamella, consequently assemble through the mode of binding fast saving time than current.

Preferably, the canister and the air outlet pipe are both of plastic construction. The preparation is convenient.

Preferably, the air outlet pipe and the canister are integrally formed together. Can be manufactured together by means of injection molding.

Preferably, the outlet pipe comprises a base section and a limiting section, the outer diameter of the limiting section is smaller than that of the base section, the limiting section is connected to the end face of the base section, an outlet pipe part clamping face is formed between the limiting section and the base section, the elastic flap of the outlet pipe part is arranged at one end, away from the base section, of the limiting section, the limiting section is arranged in the outlet pipe in a penetrating mode, and the outlet pipe part clamping face is matched with the outer end face of the first connecting through hole to clamp the head cover. The reliability in connection can be improved, and the shaking phenomenon is not easy to generate between the canister and the mask.

Preferably, the outer end of the first connecting through hole is provided with a large-diameter section, the outer diameter of the limiting section is larger than the inner diameter of the air outlet pipe, and the limiting section penetrates through the large-diameter section. The reliability at the time of fixation can be further improved.

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

Preferably, a door closing spring and a door opening structure are arranged in the face mask, an oxygen output port communicated with the buffer airbag is arranged in the face mask, a cover is arranged at the oxygen output port, 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 comprises a sliding cylinder, a lever and a driving plug located 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 for driving the lever to rotate by the driving plug is larger than the force arm for driving the lever to rotate by the door closing spring, and the driving plug divides the sliding cylinder into an outer closed cavity and an open cavity communicated with the face 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 is convenient to assemble with the hood; the comfort is good when in use, and the phenomenon of air lock is not easy to occur.

Drawings

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

Fig. 2 is an enlarged schematic view of the junction of the outlet tube and the face mask.

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 sleeve section tightening structure with the annular cavity 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 breathing 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 first connecting through hole 311, a second connecting through hole 312, a door closing spring 33, a canister 4, 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 sliding block 532, a flexible inflating rod 533, and an inflating and deflating port 5331 connected with the flexible inflating rod, 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, a lever 72, a driving plug 73, a supporting pin 74, an air outlet pipe 8, a base section 81, a limiting section 82.

Detailed Description

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

Referring to fig. 1, an integrally connected clamping fixed fire-fighting self-rescue respirator comprises a hood 2, a face mask 3, a 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 front end of the cover body is provided with a first connecting through hole 311 and a second connecting through hole 312. The inlet end of the air outlet one-way valve 6 is connected in the second connecting through hole.

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 4 is of plastic construction. One end of the canister is provided with an air outlet 42. The air outlet hole is butt jointed with an air outlet pipe 8. The air outlet pipe 8 is of a plastic structure. The air outlet pipe and the canister are integrally formed together, and are specifically formed by injection molding. The outlet duct includes base section 81 and spacing section 82. The outer diameter of the limiting section is smaller than that of the base section. The limiting section is connected to the end face of the base section. An outlet pipe part clamping surface 83 is formed between the limiting section and the base section. One end of the limiting section far away from the base section is provided with a plurality of air outlet pipe part elastic flaps 84. The elastic petals of the air outlet pipe part are distributed along the circumferential direction of the air outlet pipe. The elastic flap of the air outlet pipe part extends along the axial direction of the air outlet pipe. The peripheral surface of the elastic valve of the air outlet pipe part is provided with an air outlet pipe part barb 85. The outer end of the first connecting through hole is provided with a large diameter section 315. The outer diameter of the limiting section is larger than the inner diameter of the first connecting through hole. The limiting section is arranged in the large-diameter section in a penetrating mode. The air outlet pipe part elastic valve is arranged in the first connecting through hole in a penetrating way, and the barb of the air outlet pipe part is hooked at the inner end of the first connecting through hole so as to fix the canister 4 and the face mask 3 together. The canister cooperates with the face mask to hold the walls of the hood so that the canister, the face mask and the hood are secured together. The clamping surface of the air outlet pipe part is matched with the outer end surface of the first connecting through hole to clamp the wall of the head cover.

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 a fixed fire control self-rescue respirator of integrative connection centre gripping, includes hood and canister, the canister is equipped with the venthole, its characterized in that still includes and is located the inside face guard of hood, the face guard is equipped with first connect the via hole, the venthole has the outlet duct to the butt joint, the outlet duct is equipped with a plurality of outlet duct portion elastic lamella that distribute the axial along the outlet duct circumference and extend, be equipped with outlet duct portion barb on the outer peripheral face of outlet duct portion elastic lamella, outlet duct portion elastic lamella wears to establish in the first connect the via hole and outlet duct portion barb hookup in the first connect the via hole and with canister and hood are fixed together, canister cooperation of canister make canister, mask and hood three fix together the wall of hood, the outlet duct with canister an organic whole links together, the hood is equipped with the neck cover setting section of establishing on user's neck, the section is established to the neck cover and is flexible structure, the section is established to the neck cover and is equipped with the neck cover and establish section tightening structure, the section tightening structure is established to the neck cover includes that the annular chamber, the cable that section circumference extended are established along the neck cover fasten the loosening structure and wear to establish the cable in the annular chamber, the cable is fastened the loosening structure and is included the arc pipe that extends along annular chamber circumference, be equipped with the gap of dodging that extends along the arc pipe extending direction on the wall of arc pipe, be equipped with two sliders in the arc pipe, be located the flexible inflation rod that extends along the annular pipe extending direction between two sliders and drive the slider that two sliders fold the spring, the both ends of cable are alternately back one-to-one with two sliders link together, flexible inflation rod is connected with the inflation port.

2. A fire-fighting self-rescue respirator of claim 1, wherein the canister and the outlet duct are of plastic construction.

3. A connecting and clamping fixed fire fighting self-rescue respirator as claimed in claim 2, wherein the outlet duct is integrally formed with the canister.

4. The integrally connected clamping fixed fire-fighting self-rescue respirator of claim 1, wherein the air outlet pipe comprises a base section and a limiting section, the outer diameter of the limiting section is smaller than that of the base section, the limiting section is connected to the end face of the base section, an air outlet pipe part clamping face is formed between the limiting section and the base section, the elastic flap of the air outlet pipe part is arranged at one end, away from the base section, of the limiting section, the limiting section is arranged in the air outlet pipe in a penetrating mode, and the air outlet pipe part clamping face is matched with the outer end face of the first connecting through hole to clamp the hood.

5. The integrally connected clamping fixed fire-fighting self-rescue respirator of claim 4, wherein the outer end of the first connecting through hole is provided with a large-diameter section, the outer diameter of the limiting section is larger than the inner diameter of the first connecting through hole, and the limiting section is arranged in the large-diameter section in a penetrating manner.

6. The integrally connected clamping fixed fire-fighting self-rescue respirator of claim 1, a buffering air bag is arranged in the hood, a door closing spring and a door opening structure are arranged in the face shield, an oxygen output port communicated with the buffering 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.

7. The integrally connected and clamped fixed fire-fighting self-rescue respirator of 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. The integrally connected and clamped fixed fire-fighting self-rescue respirator of claim 1, further comprising a control device, wherein two neck sleeve section tightening structures are distributed in the vertical direction, the air inflation and air deflation ports are connected with a bidirectional air pump, and the control device controls the guys of the two neck sleeve section tightening structures to be alternately tightened at set time intervals.