CN102125734A

CN102125734A - Positive-pressure buffered breathing bag for isolated positive-pressure oxygen breathing apparatus

Info

Publication number: CN102125734A
Application number: CN 201110064170
Authority: CN
Inventors: 周业海; 张东馗
Original assignee: CHONGQING ANYI COAL MINE EQUIPMENT Co Ltd
Current assignee: CHONGQING ANYI COAL MINE EQUIPMENT Co Ltd
Priority date: 2011-03-17
Filing date: 2011-03-17
Publication date: 2011-07-20

Abstract

The invention relates to a breathing device for mine rescue, in particular to a breathing bag for an isolated positive-pressure oxygen breathing apparatus. The breathing bag comprises a main body of the buffered breathing bag characterized in that two end faces of the buffered breathing bag are respectively in a rectangular columnar structure, fixing plates are arranged on the two end faces of the buffered breathing bag, two tension springs are correspondingly arranged between the two end faces, and the two tension springs are correspondingly fixed at two narrow ends of the rectangular end faces. The positive-pressure buffered breathing bag for the isolated positive-pressure oxygen breathing apparatus adopting the technical scheme has the advantages of compact structure and small space occupation, can not be damaged or leak gas easily, and can keep positive pressure in a breathing system.

Description

The isolation type positive pressure oxygen respirator cushions breathing bag with malleation

Technical field

The present invention relates to a kind of mine rescue breathing equipment, be specifically related to a kind of breathing bag of isolation type positive pressure oxygen respirator.

Background technology

The isolation type positive pressure oxygen respirator is a kind of device that mine rescue team member or fire-fighting officers and men use when carrying out rescue and relief work in asphyxiating or toxic and harmful environment, uses in the time of also can being engaged in prevention or processing accident in threat to life and healthy environment for the personnel that were subjected to specialized training in the industries such as national defence, nuclear industry, space flight, petrochemical industry, metallurgy, urban construction, tunnel.Its operation principle is: people's respiratory system and respirator constitute the malleation people-machine respiratory system that is hedged off from the outer world, enter breathing bag after the decompression of high pressure oxygen, enter people's mouth and nose through inhaling hose then, the gas that mouth and nose are breathed out is again by the expiration flexible pipe, flow through the absorption unit of dioxide carbon of carbon-dioxide absorbent is housed, reenter breathing bag then and begin circulation, the breathing environment of malleation can prevent that pernicious gas from entering respiratory system.

At present, the breathing bag of domestic and international existing isolation type positive pressure oxygen respirator mostly is common cylindrical air bag or is built-in with the cylindrical air bag of a spring.Exist some following problems in its use: 1, when the isolation type positive pressure oxygen respirator is worn user's respiratory capacity above 30-50L/min (promptly reach and surpass medium or heavy work intensity work), the volume of breathing bag can not be followed the variation of respiratory capacity and adaptive variation, take place easily this moment in the respirator air pressure near or be lower than ambient pressure, when the user is air-breathing again, pernicious gas can take place invade people-machine respiratory system, cause and suffocate or poison; 2, the breathing bag two ends are subjected to single helical spring pulling force, and only the both ends of the surface center of air bag is stressed, and unbalance stress makes air bag damage easily and leaks gas, and is difficult to keep positive pressure environment; 3, the length dimension of breathing bag is bigger, and is bigger to space requirement.

Summary of the invention

The technical problem to be solved in the present invention is: provide a kind of compact conformation, little, not fragile gas leakage and can keep the isolation type positive pressure oxygen respirator of malleation to cushion breathing bag with malleation takes up room.

In order to solve the problems of the technologies described above, the invention provides a kind of isolation type positive pressure oxygen respirator and cushion breathing bag with malleation, include a buffering breathing bag main body, described buffering breathing bag is that both ends of the surface are rectangular column structure, be provided with fixed head on its both ends of the surface, correspondence is provided with two extension springs between both ends of the surface, and described two extension spring correspondences are fixed on two narrow ends of rectangle end face.

Adopt the isolation type positive pressure oxygen respirator of technique scheme to have following advantage: 1 with malleation buffering breathing bag, because the buffering breathing bag is that both ends of the surface are rectangular column structure, than traditional columniform design, its compact conformation, length dimension is less, take littler volume, be easy to carry; 2, owing to be provided with fixed head on the buffering breathing bag both ends of the surface, correspondence is provided with two extension springs between both ends of the surface, two extension spring correspondences are fixed on two narrow ends of rectangle end face, can avoid extension spring to damage air bag generation gas leak phenomenon like this, two extension springs simultaneously can make air bag well follow and breathe Volume Changes takes place, and make breathing bag keep barotropic state.

As preferred version, fixedly extension spring for convenience, described extension spring is fixed on the end face of buffering breathing bag by the extension spring fixed head.

As preferred version, in order to prevent the extension spring generation changing of the relative positions, described fixed head, buffering breathing bag end face and extension spring fixed head link together by extension spring plate fixed screw, further, between extension spring plate fixed screw and extension spring fixed head, be provided with sealing ring for the junction that prevents extension spring leaks gas.

Description of drawings

The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:

Fig. 1 is the structural representation of isolation type positive pressure oxygen respirator of the present invention with malleation buffering breathing bag;

Fig. 2 is the enlarged diagram of A part among Fig. 1.

The specific embodiment

As depicted in figs. 1 and 2, the invention provides a kind of isolation type positive pressure oxygen respirator and cushion breathing bag with malleation, include buffering breathing bag 1 main body, buffering breathing bag 1 is rectangular column structure for both ends of the surface, be provided with fixed head 2 on the both ends of the surface of buffering breathing bag 1, correspondence is provided with two extension springs 3 between the both ends of the surface of buffering breathing bag 1, two extension spring 3 correspondences are fixed on two narrow ends of rectangle end face, extension spring 3 is fixed on the end face of buffering breathing bag 1 by extension spring fixed head 4, fixed head 2, the end face and the extension spring fixed head 4 of buffering breathing bag 1 link together by extension spring plate fixed screw 5, wherein are provided with sealing ring 6 between extension spring plate fixed screw 5 and the extension spring fixed head 4.

Owing to the existence of two extension springs 3 can make buffering breathing bag 1 along with its pressure inside reduce shrink, extend along with the increase of its internal pressure, remain the barotropic state of buffering breathing bag 1 inside.

Above-described only is preferred implementation of the present invention; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from structure of the present invention; can also make some distortion and improvement; these also should be considered as protection scope of the present invention, and these can not influence effect of the invention process and practical applicability.

Claims

1. an isolation type positive pressure oxygen respirator cushions breathing bag with malleation, include a buffering breathing bag main body, it is characterized in that: described buffering breathing bag is that both ends of the surface are rectangular column structure, be provided with fixed head on its both ends of the surface, correspondence is provided with two extension springs between both ends of the surface, and described two extension spring correspondences are fixed on two narrow ends of rectangle end face.

2. isolation type positive pressure oxygen respirator as claimed in claim 1 cushions breathing bag with malleation, it is characterized in that: described extension spring is fixed on the end face of buffering breathing bag by the extension spring fixed head.

3. isolation type positive pressure oxygen respirator as claimed in claim 1 cushions breathing bag with malleation, it is characterized in that: described fixed head, buffering breathing bag end face and extension spring fixed head link together by extension spring plate fixed screw, wherein are provided with sealing ring between extension spring plate fixed screw and the extension spring fixed head.