CN103285536B - Breathing valve and breathing mask both with gas switching function - Google Patents
Breathing valve and breathing mask both with gas switching function Download PDFInfo
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- CN103285536B CN103285536B CN201310190898.9A CN201310190898A CN103285536B CN 103285536 B CN103285536 B CN 103285536B CN 201310190898 A CN201310190898 A CN 201310190898A CN 103285536 B CN103285536 B CN 103285536B
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- breather valve
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- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 37
- 239000011159 matrix material Substances 0.000 claims description 42
- 238000007789 sealing Methods 0.000 claims description 6
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 41
- 239000003570 air Substances 0.000 description 34
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses a breathing valve and a breathing mask both with a gas switching function. The breathing valve comprises a breathing valve base body with an inner hole, a valve body with an inner hole, a first elastic element, a shaft sleeve, a button, a second elastic element and at least one positioning element. At least one axial vent groove is formed in the inner-hole wall of the breathing valve base body. The valve body is sleeved in the breathing valve base body and has an outer end face. At least one first groove and one second groove are formed in the inner-hole wall of the valve body, and are sequentially arranged along the axial direction of the valve body. The first elastic element is arranged between the breathing valve base body and the valve body. The shaft sleeve is fixedly connected with the breathing valve base body and sleeved in the valve body. At least one positioning hole is formed in the shaft sleeve. The button is sleeved inside the shaft sleeve, and a key groove is formed in the button. The second elastic element is arranged between the button and the shaft sleeve. At least one positioning element is correspondingly arranged in the positioning holes. The positioning elements are correspondingly arranged in the key groove, the positioning holes and the first grooves when being disposed at a first position, and are correspondingly arranged in the key groove, the positioning holes and the second grooves when being disposed at a second position, so that the valve body is opened or closed relatively to the base body.
Description
Technical field
The present invention relates to a kind of valve and breathing apparatus, particularly relate to a kind of bottle valve and there is the face shield of this bottle valve.
Background technology
Since being born from the seventies in last century, air respiratorresuscitator experienced by nearly 40 years updating and developing so far, its properties of product are tending towards perfect gradually, it is mainly applicable to the places such as fire-fighting, chemical industry, boats and ships, oil, smelting, factories and miness, laboratory, enables fireman or rescue personnel carry out safely putting out a fire under the adverse circumstances being full of dense smoke, poison gas, steam or anoxic, rescue and relief work and rescue.General air respiratorresuscitator product be furnished with afford a wide field of vision, become clear, airtight good full facepiece mask, feeder is furnished with the novel steam supply valve of small volume, lightweight, stable performance; Select high strength backboard and the higher high-quality gas cylinder of safety coefficient; Relief valve unit is equipped with residual gas alarm, within the scope of the storage pressure of regulation, can send audible signal to wearer, reminds user of service to withdraw scene in time, is be engaged in the desirable personal protective device of rescue and relief work, extinguishing operation.Although in recent years, home and overseas had carried out correlation technique and had improved air respiratorresuscitator is possessed above-mentioned functions, and it is the maximum shortcoming place of air respiratorresuscitator all the time that service time is short, is also one of this field problem needing solution badly.
As everyone knows, the service time of air respiratorresuscitator can be extended by the gas cylinder rated pressure or gas cylinder gas storage volume increasing air respiratorresuscitator, but taking such mode, realizing tool technically on the one hand and acquire a certain degree of difficulty, extra manufacturing expense can increased on the other hand.If can when environmental condition allows, environment for use air, reduces unnecessary gas cylinder gas, by the mutual switching between " breathing environment air " and " breathing gas cylinder air ", can increase the service time of gas cylinder gas to a certain extent.
Summary of the invention
The object of the present invention is to provide a kind of breather valve with gas handoff functionality, this breather valve is opened when external environment is not comtaminated can introduce surrounding air, close when external environment is contaminated, breathing apparatus is made to be transformed into cylinder gas, to realize the mutual switching of surrounding air and gas cylinder air.
In order to reach foregoing invention object, the invention provides a kind of breather valve with gas handoff functionality, it comprises:
One breather valve matrix, it has endoporus, the inner hole wall of described breather valve matrix offers the air channel of at least one axially trend;
One valve body with endoporus, it is sheathed in described breather valve matrix, described valve body has the outer face be located at outside breather valve matrix, the inner hole wall of described valve body has at least one first groove and one second groove, and this first groove and the second groove set gradually along the axial direction of valve body;
One first flexible member, is located between breather valve matrix and valve body, to apply axial force;
One axle sleeve, it is fixedly connected with described breather valve matrix, and is sheathed in valve body, described axle sleeve has at least one locating hole;
One button, it is sheathed in described axle sleeve, and described button is provided with a keyway;
One second flexible member, it is located between described button and axle sleeve, to apply axial force;
At least one setting element, correspondence is located in described locating hole, described setting element is located in keyway, locating hole and the first groove in a primary importance correspondence, described setting element is located in keyway, locating hole and the second groove in a second place correspondence, to open or closed to make described valve body relative to breather valve matrix.
Setting element in the breather valve with gas handoff functionality of the present invention is switchably in two diverse locations, when steel ball is in primary importance, namely when keyway, locating hole and the first groove are in same position in radial directions, first flexible member applies an axial force to valve body makes breather valve open away from breather valve matrix, makes surrounding air enter breathing apparatus from the air channel be located at matrix; When steel ball is in the second place, namely when keyway, locating hole and the second groove are in same position in radial directions, valve body overcomes the axial force of the first flexible member and is close to breather valve matrix breather valve cuts out, in this state, the breathing apparatus that breather valve is connected to is connected with gas cylinder air, realizes source of the gas and switches.
The breather valve with gas handoff functionality described in the technical program is in the course of the work: when breather valve opened by needs, pressing button, button overcomes the second flexible member to its axial force applied constantly near axle sleeve lower end, in the process, the setting element be located in axle sleeve locating hole can enter in the keyway of button, at button further in the process of axle sleeve lower end, button push setting element forces it to cross projection between the first groove and the second groove, enter in the first groove, now discharged by the first flexible member compressed, an axial force is applied to valve body, valve body is opened relative to breather valve matrix, when breather valve closed by needs, press the valve body opened, valve body is constantly in the process of breather valve matrix lower end, setting element is made to cross projection between the first groove and the second groove, the second groove is entered from the first groove, now valve body overcomes the axial force that the first flexible member applies to it, and valve body is closed relative to breather valve matrix.
Further, the locating hole in the breather valve with gas handoff functionality of the present invention and setting element are three, and the circumferential direction along axle sleeve is evenly arranged.Locating hole and correspond to the setting element of locating hole and be set to three equably, can ensure the stability of this detent mechanism work so largely with the setting of lesser amt.
Further, above-mentioned setting element is ball type device, and the cell wall of above-mentioned first groove, the second groove and keyway all has the gradient.Adopt being equipped with of spherical setting element and the acclive groove of tool and keyway, more smooth and easy when being to make setting element switch between the first location and the second location, reduce the generation of breather valve clamping stagnation situation.
Advantageously, a sealing ring is provided with between the outer face of above-mentioned valve body and breather valve matrix.By setting up potted component to obtain better sealing effectiveness in seal interface.
Alternatively, above-mentioned axle sleeve is fixedly connected with by screw thread with breather valve matrix.Preferably, above-mentioned first flexible member and the second flexible member all adopt spring.
Correspondingly, the present invention also aims to provide a kind of breathing mask with gas handoff functionality, this breathing mask can utilize surrounding air when external environment is clean, gas cylinder air is used when external environmental, gas cylinder air can be breathed again by breathing environment air with person easy to use, decrease the use amount in the gas cylinder air unit interval, add the service time of gas cylinder air.
The breathing mask with gas handoff functionality of the present invention, it comprises mask body and at least one has the breather valve of structure mentioned above, and breather valve is fixed in mask body.
Further, above-mentioned breather valve matrix is fixedly arranged in mask body by matrix nut.
Further, breathing mask is provided with two above-mentioned breather valves.
Breather valve of the present invention is in by controlling setting element cut out and the unlatching that two diverse locations realize this valve, and structure is simple, easy to operate.
Compared with breathing mask of the prior art, breathing mask of the present invention has gas handoff functionality, makes it can realize the mutual conversion of " surrounding air " and " gas cylinder air " two kinds of breathing states, efficiently utilizes surrounding air; When outside ambient air can be breathed, do not waste gas cylinder Compressed Gas, reduce the use amount of Compressed Gas in the unit interval, improve the utilization rate of Compressed Gas in gas cylinder, extend the service time of compressed gas cylinder.
Accompanying drawing explanation
Fig. 1 is the breather valve with gas handoff functionality of the present invention structural profile view vertically under a kind of embodiment.
Fig. 2 is the structural representation with breather valve matrix in the breather valve of gas handoff functionality shown in Fig. 1.
Fig. 3 is the structural representation with button in the breather valve of gas handoff functionality shown in Fig. 1.
Fig. 4 is the structural representation of breathing mask under a kind of embodiment with gas handoff functionality of the present invention.
Detailed description of the invention
Below by according to a particular embodiment of the invention and the Figure of description breather valve that there is gas handoff functionality to of the present invention and breathing mask be further described, but this explanation does not form inappropriate limitation of the present invention.
As shown in Figure 1 to Figure 3, the breather valve 10 in the present embodiment with gas handoff functionality comprises: the breather valve matrix 11 with endoporus, hole wall offers six air channels in axial direction extended 12 within it; Similarly, valve body 13 also has endoporus, and valve body 13 is sheathed in breather valve matrix 11, and valve body 13 has radially outer outer face, it is located at outside breather valve matrix 11, and the inner hole wall of valve body 13 is provided with the first groove 131 of the annular that axial direction sets gradually and the second groove 132 of annular; The end, one end of axle sleeve 14 is fixedly connected with by screw thread with breather valve matrix 11, is sheathed in valve body 13 simultaneously, and the circumferential direction along axle sleeve 14 is evenly provided with three locating holes 141, is also provided with the steel ball 142 corresponded in locating hole 141; The first spring 16 applying axial force is provided with between breather valve matrix 11 and valve body 13; The outer circumference surface being sheathed on the button 15 in axle sleeve is provided with the keyway 151 of annular; The second spring 17 applying axial force is provided with between button 15 and axle sleeve 14; Wherein, steel ball has two different fixed positions in breather valve, when in said first position, it is located in keyway 151, locating hole 141 and the first groove 131 accordingly, to make valve body leave breather valve matrix, makes breather valve open, when at the second position, it is located in keyway 151, locating hole 141 and the second groove 132 accordingly, to make valve body be close to breather valve matrix, makes breather valve close.
In order to the sealing effectiveness that the valve that ensures respiration is excellent, sealing ring 18 can also be set between the outer face of valve body and breather valve matrix.Sealing ring can adopt the shape matched with valve body, can adopt conventional O RunddichtringO in the present embodiment.
In addition, the cell wall of the first groove 131, second groove 132 and keyway 151 all has certain gradient.When this setup can make steel ball move between the first groove and the second groove, not easily produce clamping stagnation.
Continue to consult Fig. 1 to Fig. 3, breathing mask in the present embodiment is dropped in rescue work, before not entering rescue site, in order to breathing environment air, user presses button 15, along with button 15 is in axial direction moved to the left, steel ball 142 enters in the keyway 151 of button 15, and be moved to the left further along with button, steel ball 142 slips in the first groove 131, now discharged by the first spring 16 compressed, an axial force is applied to valve body 13, valve body 13 is opened relative to breather valve matrix 11, surrounding air inputs in breathing mask via the air channel 12 be arranged on breather valve matrix 11 and breathes for user.After entering rescue site, in order to breathe gas cylinder air, user presses the valve body 13 opened, valve body 13 is in axial direction moved to the left, and the projection between the first groove 131 and the second groove 132 crossed by steel ball 142, slips in the second groove 132, now valve body 13 overcomes the axial force that the first spring 16 applies to it, valve body 13 is closed relative to breather valve matrix 11, forbids, in surrounding air input breathing mask, switching to gas cylinder air feed to meet the respiratory protection demand of user.
Fig. 4 shows the breathing mask being provided with said structure breather valve.
As shown in Figure 4, breather valve 10 is fixedly arranged in mask body 19 by the cooperation of breather valve matrix 11 and matrix nut.In the diagram, only show the breather valve 10 that left side is installed, but in actual use, a breather valve is installed respectively in the both sides of mask body 19, more outside air can be made to enter in breathing mask, make full use of surrounding air.
It should be noted that above cited embodiment is only specific embodiments of the invention.Obvious the present invention is not limited to above embodiment, and similar change thereupon or distortion are that those skilled in the art can directly draw from content disclosed by the invention or be easy to just associate, and all should belong to protection scope of the present invention.
Claims (9)
1. have a breather valve for gas handoff functionality, it is characterized in that, this breather valve comprises:
One breather valve matrix, it has endoporus, the inner hole wall of described breather valve matrix offers the air channel of at least one axially trend;
One valve body with endoporus, it is sheathed in described breather valve matrix, described valve body has the outer face be located at outside breather valve matrix, the inner hole wall of described valve body has at least one first groove and one second groove, and this first groove and the second groove set gradually along the axial direction of valve body;
One first flexible member, is located between breather valve matrix and valve body, to apply axial force;
One axle sleeve, it is fixedly connected with described breather valve matrix, and is sheathed in valve body, described axle sleeve has at least one locating hole;
One button, it is sheathed in described axle sleeve, and described button is provided with a keyway;
One second flexible member, it is located between described button and axle sleeve, to apply axial force;
At least one setting element, correspondence is located in described locating hole, described setting element is located in keyway, locating hole and the first groove in a primary importance correspondence, described setting element is located in keyway, locating hole and the second groove in a second place correspondence, to open or closed to make described valve body relative to breather valve matrix.
2. have the breather valve of gas handoff functionality as claimed in claim 1, it is characterized in that, described locating hole and setting element are three, and the circumferential direction along axle sleeve is evenly arranged.
3. have the breather valve of gas handoff functionality as claimed in claim 1, it is characterized in that, described setting element is ball type device, and the cell wall of described first groove, the second groove and keyway all has the gradient.
4. there is the breather valve of gas handoff functionality as claimed in claim 1, it is characterized in that, between the outer face of described valve body and breather valve matrix, be provided with a sealing ring.
5. have the breather valve of gas handoff functionality as claimed in claim 1, it is characterized in that, described axle sleeve is fixedly connected with by screw thread with breather valve matrix.
6. have the breather valve of gas handoff functionality as claimed in claim 1, it is characterized in that, described first flexible member and the second flexible member are spring.
7. have a breathing mask for gas handoff functionality, it comprises: mask body and at least one as the breather valve in claim 1-6 as described in any one, and described breather valve is fixed in described mask body.
8. breathing mask as claimed in claim 7, it is characterized in that, described breather valve matrix is fixedly arranged in described mask body by matrix nut.
9. breathing mask as claimed in claim 7, it is characterized in that, described breather valve is set to two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310190898.9A CN103285536B (en) | 2013-05-22 | 2013-05-22 | Breathing valve and breathing mask both with gas switching function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310190898.9A CN103285536B (en) | 2013-05-22 | 2013-05-22 | Breathing valve and breathing mask both with gas switching function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103285536A CN103285536A (en) | 2013-09-11 |
| CN103285536B true CN103285536B (en) | 2015-04-15 |
Family
ID=49087396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310190898.9A Active CN103285536B (en) | 2013-05-22 | 2013-05-22 | Breathing valve and breathing mask both with gas switching function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103285536B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104623822B (en) * | 2013-11-13 | 2018-01-30 | 抚顺市亚龙安全防护装备厂 | Full facepiece mask breathes switching valve |
| CN110694191B (en) * | 2019-11-13 | 2024-06-04 | 上海鹰格安防设备有限公司 | Mask bypass atmospheric device and fire control air respirator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2615484Y (en) * | 2003-03-08 | 2004-05-12 | 钮静江 | Air respirator cylinder valve |
| CN1879911A (en) * | 2005-06-13 | 2006-12-20 | 新广业股份有限公司 | Respiratory mask |
| US7686017B2 (en) * | 2001-06-01 | 2010-03-30 | Taylor Shane S | Fluid flow control valve |
| CN203264077U (en) * | 2013-05-22 | 2013-11-06 | 上海宝亚安全装备有限公司 | Breather valve with gas switching function and breathing mask |
-
2013
- 2013-05-22 CN CN201310190898.9A patent/CN103285536B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7686017B2 (en) * | 2001-06-01 | 2010-03-30 | Taylor Shane S | Fluid flow control valve |
| CN2615484Y (en) * | 2003-03-08 | 2004-05-12 | 钮静江 | Air respirator cylinder valve |
| CN1879911A (en) * | 2005-06-13 | 2006-12-20 | 新广业股份有限公司 | Respiratory mask |
| CN203264077U (en) * | 2013-05-22 | 2013-11-06 | 上海宝亚安全装备有限公司 | Breather valve with gas switching function and breathing mask |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103285536A (en) | 2013-09-11 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: 201206 Shanghai city Pudong New Area jinzang Road No. 258 building 4 room 406 Patentee after: SHANGHAI BAOYA SAFETY EQUIPMENT CO.,LTD. Address before: 201206 Shanghai city Pudong New Area jinzang Road No. 258 building 4 room 406 Patentee before: SHANGHAI BAOYA SAFETY EQUIPMENT Co.,Ltd. |