CN111544786A

CN111544786A - Positive pressure air respirator of air outlet connector for equipment

Info

Publication number: CN111544786A
Application number: CN202010272177.2A
Authority: CN
Inventors: 危金兰
Original assignee: Jiangshan Xianjin Electromechanical Technology Service Co Ltd
Current assignee: ZONGYANG ZHONGBANG TECHNOLOGY INFORMATION CONSULTING Co.,Ltd.
Priority date: 2018-04-09
Filing date: 2018-04-09
Publication date: 2020-08-18
Anticipated expiration: 2038-04-09
Also published as: CN108853825A; CN108853825B; CN111544786B

Abstract

The invention relates to a fire-fighting apparatus. The utility model provides a positive pressure air respirator of joint of giving vent to anger for equipment, includes headgear and air bottle, the upper end of air bottle is equipped with the valve, be equipped with the gauze mask in the headgear, the gauze mask is equipped with and link up the air inlet of headgear, the gas outlet of valve links together with a port of rubber three-way pipe, two other ports of rubber three-way pipe respectively are connected with an open and close formula quick-operation joint parent, the air inlet is equipped with the quick-operation joint daughter that links together with the open and close formula quick-operation joint parent. The invention aims to provide a positive pressure air respirator of an air outlet joint for equipment, which can share air with other respirators, and solves the problem that the air of the existing positive pressure air respirator can not be shared with other respirators.

Description

Positive pressure air respirator of air outlet connector for equipment

The application is a divisional application of application No. 2018103089246, 2018, 09.04.09 entitled "positive pressure air respirator for air outlet connector for equipment".

Technical Field

The invention relates to fire-fighting equipment, in particular to a positive pressure air respirator of an air outlet joint for equipment.

Background

The positive pressure eliminating air respirator is one isolated respirator with compressed air as breathing air source, and the used compressed air is stored in the air storing bottle, and the air supplying mode is positive pressure, so that when the respirator is worn to breathe, the whole breathing system is always in isolation with the outside and has inside pressure higher than the outside environment pressure. The device is widely applied to the fields of fire fighting, chemical defense, anti-terrorism, outburst treatment, emergency rescue and the like.

With the rapid development of economy and frequent natural disasters in China in recent years, the emergency rescue work also presents a complicated development trend across industries, fields and regions. Although China does a lot of work in the aspects of emergency rescue system construction, accident disaster treatment, prevention and the like, the emergency rescue technology and tactical research and other aspects are in the stage of starting, and especially the development of emergency rescue technology and equipment has a great gap with foreign countries. How to utilize the existing conditions that the existing rescue team in China lacks advanced and matched rescue equipment and the like to furthest exert the effects of the existing equipment of the positive pressure type air respirator and improve the rescue level is the primary task of quickly improving the fighting capacity of the rescue team in a short time. A basic structure of a conventional positive pressure air respirator is disclosed in patent publication No. CN2565465Y, and includes an air bottle, a face mask, and a shoulder strap structure for fixing the air bottle on the back of a user, and a valve is provided at the upper end of the air bottle.

The existing positive pressure air respirator has the following defects: the air in the air bottle cannot be used by the user and can not be supplied to other head sleeves.

Disclosure of Invention

The invention aims to provide a positive pressure air respirator of an air outlet joint for equipment, which can share air with other respirators, and solves the problem that the air of the existing positive pressure air respirator can not be shared with other respirators.

The technical problem is solved by the following technical scheme: the positive pressure type air respirator comprises a head cover and an air bottle, wherein a valve is arranged at the upper end of the air bottle, a mask is arranged in the head cover and is provided with an air inlet which is communicated with the head cover, the positive pressure type air respirator is characterized in that an air outlet of the valve is connected with one port of a rubber three-way pipe, the other two ports of the rubber three-way pipe are respectively connected with an open-close type quick joint parent, and the air inlet is provided with a quick joint daughter which is connected with the open-close type quick joint parent. When the air bottle is used, the air bottle is carried on the back, the head cover covers the head, and the mouth and the nose are covered by the mask. The valve gas outlet sets up two switching formula quick-operation joint matrixes, and one supplies the headgear of self to connect usefulness, and another can supply the headgear of other respirators to connect usefulness to the sharing of air supply has been realized.

Preferably, a buffer air bag is arranged in the head cover, a cover plate folding spring and a suction driving type cover plate opening mechanism are arranged in the mask, an oxygen bag interface communicated with the buffer air bag is arranged in the mask, an oxygen bag interface cover plate is arranged on the oxygen bag interface, the cover plate folding spring is used for driving the oxygen bag interface cover plate to seal the oxygen bag interface, the suction driving type cover plate opening mechanism is used for overcoming the elasticity of the cover plate folding spring to open the oxygen bag interface cover plate, the suction driving type cover plate opening mechanism comprises an air cylinder, a pry bar hinged in the mask and a balance plug located in the air cylinder, one end of the pry bar is connected with the oxygen bag interface cover plate, the other end of the pry bar is connected with the balance plug, and the force arm of the balance plug driving the pry bar to rotate is larger than the force arm of the cover plate folding spring driving, the balance plug divides the cylinder into a sealed cavity and an open cavity communicated with the mask; in an initial state, the air pressure of the opening cavity is greater than or equal to the air pressure of the sealing cavity, and the oxygen bag interface is sealed by the oxygen bag interface cover plate; when the pressure in the opening cavity is reduced due to inspiration, the pressure difference between the sealing cavity and the opening cavity drives the balance plug to move towards the opening cavity, so that the pry bar swings to overcome the elastic force of the cover plate folding spring, and the oxygen bag interface cover plate is opened. The buffering air bag is arranged, and the safety of the head sleeve can be ensured. When in use, the buffer air bag is filled with oxygen and the air pressure in the buffer air bag is more than 1.5 standard atmospheric pressures. Atmospheric pressure in the gauze mask risees when exhaling to make balanced stopper for moving towards sealed chamber, the structure of removal is balanced stopper and removes towards the direction of covering the oxygen export through the prying bar drive oxygen bag interface cover board, avoids the oxygen outflow in the buffering gasbag and leads to extravagantly. When breathing in, the air pressure in the mask is reduced, so that the balance plug moves towards the opening cavity under the action of pressure difference, and the balance plug drives the oxygen bag interface cover plate to open through the pry bar as a result of the movement, so that oxygen in the buffering air bag flows out of the mask to be inhaled by a user, the effect of increasing the oxygen content of the inhaled air is achieved, the discomfort of the user caused by the oxygen deficiency in a fire area is avoided,

preferably, the oxygen bag interface is communicated with the buffer air bag through a communicating pipe, and a manual valve is arranged on the communicating pipe. The oxygen in the buffer air bag can be reused when the user feels oxygen deficiency.

As preferred, the headgear is equipped with the neck section of cover on user's neck, the neck section is flexible structure, the neck section is equipped with the neck section and receives the mechanism that looses, the mechanism that looses is received to the neck section includes that the annular chamber, the rope that extend along neck section circumference unties the fastening mechanism and wear to establish the rope in the annular chamber, the rope unties the fastening mechanism and includes the circular arc pipe that extends along annular chamber circumference, be equipped with the cable removal clearance that extends along circular arc pipe extending direction on the wall of circular arc pipe, be equipped with two connecting blocks in the circular arc pipe, be located two connecting blocks between the rubber gas pole that extend along annular pipe extending direction and the connecting block that two connecting blocks of drive fold the spring, the both ends of rope alternately back one-to-one with two connecting blocks link together, the rubber gas pole is connected with the. The technical scheme with different technical concepts is provided for realizing the closing-in fixation of the lower end of the head sleeve and the neck.

The invention also comprises a control device, the two neck section folding and unfolding mechanisms are distributed along the up-down direction, the air charging and discharging port is connected with an air charging and discharging pump, and the control device controls the ropes of the two neck section folding and unfolding mechanisms to be alternately tightened according to a set time interval. Can avoid the neck injury caused by the rope being tied on the same position of the user's neck for a long time.

Preferably, the inflation and deflation pump is connected with the buffer air bag.

The invention has the following advantages: air source sharing is enabled.

Drawings

Fig. 1 is a schematic diagram of a first embodiment of the invention.

Fig. 2 is a schematic structural diagram of a headgear according to a second embodiment of the invention.

Fig. 3 is a partially enlarged schematic view of fig. 2 at B.

FIG. 4 is a schematic cross-sectional view C-C of FIG. 2.

FIG. 5 is a schematic view showing the connection control relationship between the neck section retraction mechanism and the cushion bladder.

In the figure: the air bottle comprises an air bottle 1, a reinforcing sleeve 11, a head sleeve 2, a head section 21, a neck section 22, a buffering air bag 23, an oxygen bag interface 24, a communicating pipe 25, a manual operation 26, an air inlet 27, an oxygen bag interface cover plate 28, a mask 29, a cover plate folding spring 30, a valve 4 and a quick connector sub-body 41

The device comprises a rubber three-way pipe 42, a quick joint parent body 43, a neck section folding and unfolding mechanism 5, a suspension ring 51, a rope 52, one end 521 of the rope, the other end 522 of the rope, a rope unfolding and fastening mechanism 53, an arc pipe 531, a cable moving gap 5311, a connecting block 532, a rubber air rod 533, an air charging and discharging port 5331 connected with the rubber air rod, a control device 534, an air charging and discharging pump 535, a one-way valve 6, an air suction driving type cover plate opening mechanism 7, an air cylinder 71, a sealing cavity 711, an opening cavity 712, a pry rod 72, a balance plug 73 and a hinge pin 74.

Detailed Description

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

First embodiment, referring to fig. 1, a positive pressure air respirator for an air outlet connector of equipment comprises a head cover 2 and an air bottle 1.

The headgear 2 is provided with an air inlet 27. A mask 29 (see fig. 2) is provided inside the head cover 2. The air inlet is communicated with the inside of the mask. The air inlet is connected with a quick-coupling sub-body 41.

The upper end and the lower end of the air bottle 1 are provided with reinforcing sleeves 11. The upper end of the air bottle 1 is provided with a valve 4. The air outlet of the valve 4 is connected with one port of the rubber three-way pipe 42. The other two ports of the rubber tee pipe 42 are connected with an open-close type quick coupling parent body 43 respectively. The sub-body 41 is connected to the main body 43. The other open-close quick connector parent body 43 is used for other masks.

The second embodiment is different from the first embodiment in that:

referring to fig. 2, a cover plate folding spring 30 and a suction driving type cover plate opening mechanism 7 are arranged in the mask. An oxygen bag interface 24 communicated with the buffer air bag is arranged in the cover body. The oxygen bag interface is provided with an oxygen bag interface cover plate 28. The cover plate folding spring is used for driving the oxygen bag connector cover plate to seal the oxygen bag connector. The air suction driving type cover plate opening mechanism is used for overcoming the elasticity of the cover plate folding spring to open the oxygen bag interface cover plate. The suction-driven lid opening mechanism includes a cylinder 71, a pry bar 72, and a balanced plug 73 located within the cylinder. A pry bar 72 is hinged within the housing 31 by a hinge pin 74. One end of the pry bar is connected with the oxygen bag interface cover plate, and the other end of the pry bar is connected with the balance plug. The force arm of the balance plug driving pry bar rotating by taking the hinge pin as a shaft is larger than the force arm of the cover plate folding spring driving pry bar rotating by taking the hinge pin as a shaft. The balance plug divides the cylinder into a sealing cavity 711 and an opening cavity 712 communicated with the port cover; in the initial state, the air pressure of the sealing cavity is equal to that of the opening cavity, and the oxygen bag interface cover plate seals the oxygen bag interface 24 under the action of the cover plate folding spring; when the oxygen bag mouth cover plate is used, when the air pressure in the mask is reduced during air suction, the pressure in the opening cavity is reduced, the pressure difference between the sealing cavity and the opening cavity drives the balance plug to move towards the opening cavity, so that the prying bar swings to overcome the elastic force of the cover plate folding spring, and the oxygen bag mouth cover plate is opened. Pressure in the mask rises during expiration so that the pressure in the opening cavity rises, and the pressure difference drive balanced stopper in sealed chamber and opening cavity moves towards sealed chamber thereby makes the crow bar swing and helps apron to close the spring and make on the oxygen bag interface cover board oxygen bag interface of oxygen bag interface cover board more reliable. The oxygen bag interface is communicated with the buffer air bag through a communicating pipe 25. The communicating pipe is provided with a manual valve 26.

Referring to fig. 3 and 4, the cord untying tie-down mechanism 53 includes an arcuate tube 531 extending circumferentially along the annular cavity. The wall of the circular arc pipe is provided with a stay cable moving gap 5311 extending along the extension direction of the circular arc pipe. Two connecting blocks 532 and a rubber air rod 533 which is positioned between the two connecting blocks and extends along the extension direction of the annular pipe are arranged in the circular arc pipe. The two link blocks 532 are connected together by a link block closing spring (not shown) that drives the two link blocks to close. One end 521 of the rope and the other end 522 of the rope are crossed and are connected with the two connecting blocks in a one-to-one correspondence mode. Cord unwinding cinching mechanism 53 also includes control 534. The rubber air rod is connected with an air charging and discharging port 5331. The inflation and deflation ports are in communication with the cushion bladder via an inflation and deflation pump 535.

Referring to fig. 2, 3 and 4, the control device controls the ropes of the two neck section retraction mechanisms to be alternately tightened according to a set time interval, specifically, when the control device is used, the lower rope is firstly tightened to enable the neck section to be contracted and tightened on the neck of a user so as to reduce external air to enter the headgear to stimulate eyes, after a set time period, the upper rope is tightened to enable the neck section to be contracted and tightened, after the upper rope is tightened, the lower rope is loosened, after the time period, the lower rope is tightened to enable the neck section to be contracted and tightened, and after the lower rope is tightened, the upper rope is loosened, and the alternate tightening is circularly realized.

Referring to fig. 4, the process of tightening and loosening the cord is: when in fastening, the inflation rod is inflated through the inflation and deflation pump, and the inflation rod inflates and swells to drive the pair of connecting blocks to be separated, so that a ring enclosed by the ropes is reduced, and fastening is realized; when the rope is loosened, the two-way inflation pump pumps out the gas in the inflation rod, so that the inflation rod is shrunken and loses the supporting function, and the two connecting blocks are folded under the action of the connecting block folding spring to enable the rope to lose the tension force.

Claims

1. A positive pressure air respirator of an air outlet joint for equipment comprises a head cover and an air bottle, wherein a valve is arranged at the upper end of the air bottle, a mask is arranged in the head cover and is provided with an air inlet which penetrates through the head cover, the positive pressure air respirator is characterized in that an air outlet of the valve is connected with one port of a rubber three-way pipe, the other two ports of the rubber three-way pipe are respectively connected with an open-close type quick joint parent body, the air inlet is provided with a quick joint daughter which is connected with the open-close type quick joint parent body, the head cover is provided with a neck section which is sleeved on the neck of a user, the neck section is of a flexible structure and is provided with a neck section collecting and scattering mechanism, the neck section collecting and scattering mechanism comprises an annular cavity extending along the circumferential direction of the neck section, a rope fastening mechanism and a rope penetrating through the annular cavity, the rope fastening mechanism comprises, the wall of the circular arc tube is provided with a stay cable moving gap extending along the extending direction of the circular arc tube, the circular arc tube is internally provided with two connecting blocks, a rubber air rod extending along the extending direction of the circular tube and a connecting block folding spring driving the two connecting blocks to be folded, two ends of the rope are connected with the two connecting blocks in a one-to-one correspondence way after crossing, the rubber air rod is connected with an air charging and discharging port, the head sleeve is internally provided with a buffer air bag, the mask is internally provided with a cover plate folding spring and an air suction driving type cover plate opening mechanism, the mask is internally provided with an oxygen bag interface communicated with the buffer air bag, the oxygen bag interface is provided with an oxygen bag interface cover plate, the cover plate folding spring is used for driving the oxygen bag interface cover plate to seal the oxygen bag interface, and the air suction driving type cover plate opening mechanism is used for overcoming the elasticity, the air suction driving type cover plate opening mechanism comprises an air cylinder, a pry bar and a balance plug, wherein the pry bar is hinged in the mask, the balance plug is positioned in the air cylinder, one end of the pry bar is connected with the oxygen bag interface cover plate, the other end of the pry bar is connected with the balance plug, the force arm for driving the pry bar to rotate by the balance plug is larger than the force arm for driving the pry bar to rotate by a cover plate folding spring, and the balance plug divides the air cylinder into a sealed cavity and an open cavity communicated with the mask; in an initial state, the air pressure of the opening cavity is greater than or equal to the air pressure of the sealing cavity, and the oxygen bag interface is sealed by the oxygen bag interface cover plate; when the pressure in the opening cavity is reduced due to air suction, the pressure difference between the sealing cavity and the opening cavity drives the balance plug to move towards the opening cavity, so that the prying bar swings to overcome the elastic force of the cover plate folding spring to open the oxygen bag interface cover plate; the fixed fire control self-rescue respirator of body coupling centre gripping still includes controlling means, the neck section is received scattered mechanism and is had two and distribute along upper and lower direction, the inflation and deflation port is connected with the inflation pump, controlling means control the rope that the scattered mechanism was received to two neck sections is tied tightly according to the time interval of setting for in turn, the inflation pump with the buffering gasbag links together.

2. The positive pressure air respirator of the air outlet joint for the equipment of claim 1, wherein the oxygen bag interface is communicated with the buffer air bag through a communicating pipe, and a manual valve is arranged on the communicating pipe.