CN202302100U

CN202302100U - Exhalation control valve

Info

Publication number: CN202302100U
Application number: CN2011203247667U
Authority: CN
Inventors: 张瞒旺; 张贇
Original assignee: SHANXI RUISHI PROTECTION TECHNOLOGY Co Ltd
Current assignee: SHANXI RUISHI PROTECTION TECHNOLOGY Co Ltd
Priority date: 2011-09-01
Filing date: 2011-09-01
Publication date: 2012-07-04
Anticipated expiration: 2021-09-01

Abstract

The utility model relates to an exhalation control valve, belongs to the technical field of self rescuers in coal mines, aims to solve the technical problem about providing an exhalation control valve capable of automatically adjusting and avoiding waste of reaction material in a self rescuer, and adopts the technical scheme as follows: the valve body is a hollow cylinder; a cover is connected at the top part of the valve body through a thread; small holes are uniformly distributed in the top part of the cover; a first partition plate, a second partition plate and a third partition plate are sequentially arranged at the top part, the middle lower part and the bottom part of the valve body respectively; the upper part of a T-shaped pull rod is hung on a spring; the lower part of the T-shaped pull rod is located in the spring, and extends outside the valve body after penetrating through holes at the centers of the second partition plate and the third partition plate respectively; and a sealing element is arranged above the top part of the T-shaped pull rod. According to the exhalation control valve provided by the utility model, when the pressure in an air bag reaches a certain value, gas exhaled by a person does not go into an oxygen generator and is exhausted outside directly; and when the pressure in the air bag reduces, gas exhaled by the person goes into the oxygen generator again for proceeding to generate oxygen, as a result, the protection time is prolonged.

Description

The expiration control valve

Technical field

The utility model expiration control valve belongs to self-rescuer technical field under the coal mine.

Background technique

Present global coal industry is all paid much attention to safety in production, and China's domestic colliery major part is the higher mine of gas, requires to eliminate the filtering type self-rescuer, is replaced by the isolation type self-rescuer, requires to be equipped with Security Module simultaneously; Traditional breathing valve seat is a kind of gas leakage valve seat in the isolation type self-rescuer in the market; Its major function be the air pressure in air bag when reaching certain pressure steam leak-off valve open; With oxygen too much in the air bag part of draining; Reduce the pressure of air bag, so just caused waste, make protective time shorten.

The model utility content

The utility model overcomes the deficiency of existing technology, and technical problem to be solved provides a kind of can the adjusting automatically, can not cause the expiration control valve of reactive material waste in the self-rescuer.

In order to solve the problems of the technologies described above; The technological scheme that the utility model adopts is: the expiration control valve, comprise valve body, lid, first dividing plate, second partition, the 3rd dividing plate, spring, T type pull bar, Sealing, primary diaphragm and secondary diaphragm, and valve body is a hollow cylinder; Lid is through being threaded in the top of valve body; The top of said lid is evenly equipped with aperture, and the top of valve body, middle and lower part and bottom are disposed with first dividing plate, second partition and the 3rd dividing plate, and the structure of described first dividing plate, second partition and the 3rd dividing plate is and is evenly equipped with a plurality of through holes on the plectane; The first dividing plate center that is positioned at the valve body top is provided with convexity; Be positioned at the second partition of valve body middle and lower part, bottom and the center of the 3rd dividing plate and have through hole, spring is arranged on the second partition of valve body middle and lower part, and the top of T type pull bar hangs on the spring; The bottom of T type pull bar be positioned at spring inner and pass second partition and the through hole at the 3rd dividing plate center after stretch out outside the valve body; Above T type pull bar top, be provided with Sealing, Sealing is pressed in the first dividing plate place under the effect of spring, the valve inner and the external world are separated; On the convexity at the said first dividing plate center primary diaphragm is installed, said the 3rd dividing plate top is provided with secondary diaphragm.

The material of said primary diaphragm, secondary diaphragm is rubber.

The utility model compared with prior art has following beneficial effect.

The utility model expiration control valve has realized when the pressure in the air bag acquires a certain degree that through structures such as spring, T type pull bar, primary diaphragms the gas that the people breathes out no longer gets into oxygen generator; Directly be discharged to the external world, when the pressure in the air bag reduced, the gas that the people breathes out got into oxygen generator again; Continue to produce oxygen; Like this, just can not cause waste, prolong protective time.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the user mode reference drawing of the utility model.

Among the figure: 1 is valve body, and 2 are lid, and 3 is first dividing plate, and 4 is second partition, and 5 is the 3rd dividing plate, and 6 is spring, and 7 is T type pull bar, and 8 is Sealing, and 9 is primary diaphragm, and 10 is secondary diaphragm, and 11 is air bag, and 12 are rope, and 13 is oxygen generator, and 14 is a mouthful tool.

Embodiment

Shown in Figure 2 like Fig. 1; The utility model expiration control valve comprises valve body 1, lid 2, first dividing plate 3, second partition 4, the 3rd dividing plate 5, spring 6, T type pull bar 7, Sealing 8, primary diaphragm 9 and secondary diaphragm 10, and valve body 1 is a hollow cylinder; Lid 2 is through being threaded in the top of valve body 1; The top of said lid 2 is evenly equipped with aperture, and the top of valve body 1, middle and lower part and bottom are disposed with first dividing plate 3, second partition 4 and the 3rd dividing plate 5, and the structure of described first dividing plate 3, second partition 4 and the 3rd dividing plate 5 is and is evenly equipped with a plurality of through holes on the plectane; First dividing plate, 3 centers that are positioned at valve body 1 top are provided with convexity; Be positioned at the second partition 4 of valve body 1 middle and lower part, bottom and the center of the 3rd dividing plate 5 and have through hole, spring 6 is arranged on the second partition 4 of valve body 1 middle and lower part, and the top of T type pull bar 7 hangs on the spring 6; The bottom of T type pull bar 7 be positioned at spring 6 inner and pass the through hole at second partition 4 and the 3rd dividing plate 5 centers after stretch out outside the valve body 1; Above T type pull bar 7 tops, be provided with Sealing 8, Sealing 8 is pressed in first dividing plate, 3 places under the effect of spring 6, and valve body 1 inside is separated with the external world; On the convexity at said first dividing plate 3 centers primary diaphragm 9 is installed, said the 3rd dividing plate 5 tops are provided with secondary diaphragm 10.

The material of said primary diaphragm 9, secondary diaphragm 10 is rubber.

The utility model is installed in the air bag 11 of isolation type self-rescuer, and the top card of air bag 11 is below the utility model middle cover 2, and the bottom of T type pull bar 7 is connected through rope 12 in the bottom of air bag 11 and the utility model.

The working procedure of the utility model expiration control valve is: when the people held mouth tool 14 expiration of isolation type self-rescuer in the month, gas got in the oxygen generator 13, with the substance reaction in the oxygen generator 13; Generate oxygen, the oxygen of generation gets in the air bag 11, at this moment; Spring 6 in this expiration control valve withstands on Sealing 8 on first dividing plate 3; The inside of this expiration control valve is hedged off from the outer world, and secondary diaphragm 10 is attached on the 3rd dividing plate 5, makes the gas of breathing out can't get in the air bag 11; When air-breathing, primary diaphragm 9 is with the sealing of the aperture on connecting body 7 under shields 8, and is isolated with oxygen generator 13, and spring 6 remains unchanged isolation with Sealing 8, and secondary diaphragm 10 perks make that the oxygen in the air bag 11 is sucked by the people; So circulation.Behind certain hour, it is violent that the oxygenic reaction in the oxygen generator 13 becomes, and gives birth to oxygen speed and accelerate, and the pressure in the air bag 11 improves; Air bag 11 sticks out gradually, and when the pressure in the air bag 11 acquired a certain degree, air bag 11 bottoms were compressed spring 6 through rope 12 and T type pull bar 7, make Sealing 8 separate with first dividing plate 3; Exhale this moment again, and the gas of exhalation has not just got into oxygen generator 13, but gets into this expiration control valve, primary diaphragm 9 perks; The gas of breathing out directly is discharged to the external world through the through hole that covers on 2, and when air-breathing, primary diaphragm 9 falls; Secondary diaphragm 10 perks, the oxygen in the air bag 11 is sucked by the people, has so just controlled the speed of oxygenic reaction in the oxygen generator 13; The living oxygen speed that makes is slack-off, and the pressure in the air bag 11 diminishes gradually, and spring 6 is return gradually.Like this, the reactive material in the oxygen generator 13 can be utilized fully, can not cause waste, has prolonged protective time.

Claims

1. expiration control valve; It is characterized in that: comprise valve body (1), lid (2), first dividing plate (3), second partition (4), the 3rd dividing plate (5), spring (6), T type pull bar (7), Sealing (8), primary diaphragm (9) and secondary diaphragm (10); Valve body (1) is a hollow cylinder; Lid (2) is through being threaded in the top of valve body (1); The top of said lid (2) is evenly equipped with aperture; Top, middle and lower part and the bottom of valve body (1) is disposed with first dividing plate (3), second partition (4) and the 3rd dividing plate (5); The structure of described first dividing plate (3), second partition (4) and the 3rd dividing plate (5) is and is evenly equipped with a plurality of through holes on the plectane, and first dividing plate (3) center that is positioned at valve body (1) top is provided with convexity, is positioned at the second partition (4) of valve body (1) middle and lower part, bottom and the center of the 3rd dividing plate (5) and has through hole; Spring (6) is arranged on the second partition (4) of valve body (1) middle and lower part; The top of T type pull bar (7) hangs on the spring (6), the bottom of T type pull bar (7) be positioned at spring (6) inner and pass the through hole at second partition (4) and the 3rd dividing plate (5) center after stretch out outside the valve body (1), be provided with Sealing (8) in the top at T type pull bar (7) top; Sealing (8) is pressed in first dividing plate (3) and locates under the effect of spring (6); Valve body (1) inside is separated with the external world, on the convexity at said first dividing plate (3) center primary diaphragm (9) is installed, said the 3rd dividing plate (5) top is provided with secondary diaphragm (10).

2. expiration control valve according to claim 1 is characterized in that: the material of said primary diaphragm (9), secondary diaphragm (10) is rubber.