CN203264077U - Breather valve with gas switching function and breathing mask - Google Patents
Breather valve with gas switching function and breathing mask Download PDFInfo
- Publication number
- CN203264077U CN203264077U CN 201320281047 CN201320281047U CN203264077U CN 203264077 U CN203264077 U CN 203264077U CN 201320281047 CN201320281047 CN 201320281047 CN 201320281047 U CN201320281047 U CN 201320281047U CN 203264077 U CN203264077 U CN 203264077U
- Authority
- CN
- China
- Prior art keywords
- breather valve
- groove
- valve
- matrix
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a breather valve with a gas switching function and a breathing mask. The breather valve comprises a breather valve base body, a valve body, a first elastic element, a shaft sleeve, a button, a second elastic element and at least one locating element, wherein the breather valve base body is provided with an inner hole, and the wall of the inner hole is provided with at least one breathing groove in the axial direction; the valve body is provided with an inner bore and is sleeved with the breather valve base body, the valve body is provided with an outer end face, the wall of the inner bore is provided with at least one first groove and at least one second groove, and the first grooves and the second grooves are sequentially formed in the axial direction of the valve body; the first elastic element is arranged between the breather valve base body and the valve body; the shaft sleeve is fixedly connected with the breather valve base body and is sleeved with the valve body, and the shaft sleeve is provided with at least one locating hole; the button is sleeved with the shaft sleeve and provided with key grooves; the second elastic element is arranged between the button and the shaft sleeve; the locating elements are correspondingly arranged in the locating holes, the locating elements are correspondingly arranged in the key grooves, the locating holes and the first grooves when at first positions, and the locating elements are correspondingly arranged in the key grooves, the locating holes and the second grooves when at second positions so that the valve body can be opened or closed relative to the base body.
Description
Technical field
The utility model relates to a kind of valve and breathing apparatus, relates in particular to a kind of bottle valve and has the face shield of this bottle valve.
Background technology
Since being born from the seventies in last century, air respiratorresuscitator has experienced nearly 40 years updating and developing so far, it is perfect that its properties of product are tending towards gradually, it mainly is applicable to fire-fighting, chemical industry, boats and ships, oil, smelting, factories and miness, laboratory etc. and locates, and makes that fireman or rescue personnel can put out a fire safely under the adverse circumstances that are 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 the higher high-quality gas cylinder of high strength backboard and safety coefficient; Relief valve unit is equipped with the residual gas alarm, in the storage pressure scope of regulation, can send audible signal to the wearer, reminds the user of service in time to withdraw the scene, is to be engaged in rescue and relief work, the desirable personal protective device of fire extinguishing operation.Although in recent years, home and overseas has carried out the correlation technique improvement and has made air respiratorresuscitator possess above-mentioned functions, and service time is short is the shortcoming place of air respiratorresuscitator maximum all the time, is also that one of problem of solution is needed in this field badly.
As everyone knows, can be by the gas cylinder rated pressure that increases air respiratorresuscitator or the service time that gas cylinder gas storage volume extends air respiratorresuscitator, but taking such mode, realizing technically on the one hand having certain difficulty, can increase extra manufacturing expense on the other hand.If can be in the situation that environmental condition allows, the environment for use air reduces unnecessary gas cylinder gas, by the mutual switching between " breathing environment air " and " breathing the gas cylinder air ", can increase to a certain extent the service time of gas cylinder use gas.
The utility model content
The purpose of this utility model 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, make breathing apparatus can be transformed into gas cylinder gas, to realize the mutual switching of surrounding air and gas cylinder air.
In order to reach above-mentioned utility model purpose, the utility model provides a kind of breather valve with gas handoff functionality, and it comprises:
One breather valve matrix, it has endoporus, offers the air channel of at least one axial trend on the inner hole wall of described breather valve matrix;
One has the valve body of endoporus, it is sheathed in described breather valve matrix, described valve body has the outer face of being located at outside the breather valve matrix, has at least one the first groove and one second groove on the inner hole wall of described valve body, 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, has at least one locating hole on described axle sleeve;
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 in a primary importance correspondence is located at keyway, locating hole and the first groove, described setting element is in a second place correspondence is located at keyway, locating hole and the second groove, so that described valve body is opened with respect to the breather valve matrix or closure.
Setting element in the breather valve with gas handoff functionality described in the utility model switchably is in two diverse locations, when steel ball is in primary importance, be that keyway, locating hole and the first groove are when being in same position in the radial direction, the first flexible member applies an axial force to valve body makes breather valve open away from the breather valve matrix, make surrounding air enter breathing apparatus from the air channel of being located on matrix; When steel ball is in the second place, be that keyway, locating hole and the second groove are when being in same position in the radial direction, valve body overcomes the axial force of the first flexible member and is close to the breather valve matrix and makes breather valve close, in this state, the breathing apparatus that breather valve is connected to is connected with the gas cylinder air, realizes that source of the gas switches.
the breather valve that the technical program is described has a gas handoff functionality is in the course of the work: when needs are opened breather valve, press button, button overcomes the second flexible member to its axial force that applies and constantly near the axle sleeve lower end, in this process, the setting element of being located in the axle sleeve locating hole can enter in the keyway of button, at button further in the process near the axle sleeve lower end, the button push setting element forces it to cross projection between the first groove and the second groove, enter in the first groove, this moment, compressed the first flexible member discharged, apply an axial force to valve body, make valve body open with respect to the breather valve matrix, when needs are closed breather valve, press the valve body of opening, valve body is in the process of constantly close breather valve matrix lower end, make setting element cross projection between the first groove and the second groove, enter the second groove from the first groove, this moment, valve body overcame the first flexible member to its axial force that applies, and valve body is closed with respect to the breather valve matrix.
Further, locating hole and setting element in the breather valve with gas handoff functionality described in the utility model are three, evenly arrange along the circumferential direction of axle sleeve.Locating hole and be set to equably three corresponding to the setting element of locating hole can guarantee with the setting of lesser amt the stability of this detent mechanism work so largely.
Further, above-mentioned setting element is ball type device, and the cell wall of above-mentioned the first groove, the second groove and keyway all has the gradient.Adopting being equipped with of spherical setting element and the acclive groove of tool and keyway, is more smooth and easy when setting element is switched between primary importance and the second place, reduces the generation of breather valve clamping stagnation situation.
Advantageously, be provided with a sealing ring between the outer face of above-mentioned valve body and breather valve matrix.Obtain better sealing effectiveness by set up potted component in the seal interface.
Alternatively, above-mentioned axle sleeve is fixedly connected with by screw thread with the breather valve matrix.Preferably, above-mentioned the first flexible member and the second flexible member all adopt spring.
Correspondingly, the purpose of this utility model also is to provide a kind of breathing mask with gas handoff functionality, this breathing mask can utilize surrounding air when external environment is clean, use the gas cylinder air when external environmental, to facilitate the user can breathe the gas cylinder air again by the breathing environment air, reduce the use amount in the gas cylinder air unit interval, increased the service time of gas cylinder air.
Breathing mask with gas handoff functionality described in the utility model, it comprises that face shield body and at least one have the breather valve of structure mentioned above, breather valve is fixed on the face shield body.
Further, above-mentioned breather valve matrix is fixedly arranged on the face shield body by the matrix nut.
Further, be provided with two above-mentioned breather valves on breathing mask.
Breather valve described in the utility model is in two diverse locations by the control setting element and realizes cutting out and opening of this valve, and is simple in structure, easy to operate.
Compare with breathing mask of the prior art, breathing mask described in the utility model has the gas handoff functionality, makes it can realize the mutual conversion of " surrounding air " and " gas cylinder air " two kinds of breathing states, has effectively utilized surrounding air; In the situation that can breathe the external environment air, do not waste the gas cylinder Compressed Gas, reduce the use amount of Compressed Gas in the unit interval, improved the utilization rate of Compressed Gas in gas cylinder, extended the service time of compressed gas cylinder.
Description of drawings
Fig. 1 is the breather valve with gas handoff functionality described in the utility model vertically structural profile view under a kind of embodiment.
Fig. 2 is the structural representation of breather valve matrix in the breather valve with gas handoff functionality shown in Figure 1.
Fig. 3 is the structural representation of button in the breather valve with gas handoff functionality shown in Figure 1.
Fig. 4 is the structural representation of breathing mask under a kind of embodiment with gas handoff functionality described in the utility model.
The specific embodiment
Below will be further described breather valve and the breathing mask with gas handoff functionality described in the utility model according to specific embodiment of the utility model and Figure of description, but this explanation does not consist of improper restriction of the present utility model.
As shown in Figure 1 to Figure 3, the breather valve 10 that has in the present embodiment the gas handoff functionality comprises: have the breather valve matrix 11 of endoporus, offer six air channels 12 that in axial direction extend within it on hole wall; 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 sets gradually on axial direction and the second groove 132 of annular; One end end of axle sleeve 14 is fixedly connected with by screw thread with breather valve matrix 11, is sheathed on simultaneously in valve body 13, evenly is provided with three locating holes 141 along the circumferential direction of axle sleeve 14, also is provided with corresponding with it steel ball 142 in locating hole 141; Be provided with the first spring 16 that applies axial force between breather valve matrix 11 and valve body 13; The outer circumference surface that is sheathed on the button 15 in axle sleeve is provided with the keyway 151 of annular; Be provided with the second spring 17 that applies axial force between button 15 and axle sleeve 14; Wherein, steel ball has two different fixed positions in breather valve, when being in primary importance, it is located in keyway 151, locating hole 141 and the first groove 131 accordingly, so that valve body leaves the breather valve matrix, makes breather valve open, when being in the second place, it is located in keyway 151, locating hole 141 and the second groove 132 accordingly, so that valve body is close to the breather valve matrix, makes breather valve close.
For the good sealing effectiveness of the valve that ensures respiration, can also between the outer face of valve body and breather valve matrix, sealing ring 18 be set.Sealing ring can adopt the shape that is complementary with valve body, can adopt in the present embodiment conventional O RunddichtringO.
In addition, the cell wall of the first groove 131, the second groove 132 and keyway 151 all has certain gradient.This setup can so that steel ball is when moving, be difficult for producing clamping stagnation between the first groove and the second groove.
continue to consult Fig. 1 to Fig. 3, breathing mask in the present embodiment is dropped in rescue work, before not entering rescue site, for the breathing environment air, the user presses button 15, along with button 15 in axial direction is moved to the left, steel ball 142 enters in the keyway 151 of button 15, and along with button further is moved to the left, steel ball 142 slips in the first groove 131, this moment, compressed the first spring 16 discharged, apply an axial force to valve body 13, make valve body 13 open with respect to breather valve matrix 11, surrounding air is via breathing for the user in the air channel 12 input breathing masks that are arranged on breather valve matrix 11.After entering rescue site, in order to breathe the gas cylinder air, the user presses opened valve body 13, valve body 13 in axial direction is moved to the left, and steel ball 142 is crossed the projection between the first groove 131 and the second groove 132, slips in the second groove 132, this moment, valve body 13 overcame the first spring 16 to its axial force that applies, make valve body 13 with respect to breather valve matrix 11 closures, forbid switching to the gas cylinder air feed to satisfy user's respiratory protection demand in surrounding air input breathing mask.
Fig. 4 has shown the breathing mask that is provided with the said structure breather valve.
As shown in Figure 4, breather valve 10 is fixedly arranged on face shield body 19 by the cooperation of breather valve matrix 11 and matrix nut.In Fig. 4, only shown the breather valve 10 that install in the left side, but in actual use, in the both sides of face shield body 19, a breather valve has been installed respectively, can make more outside air enter in breathing mask, take full advantage of surrounding air.
It should be noted that above cited embodiment only is specific embodiment of the utility model.Obviously the utility model is not limited to above embodiment, and similar variation thereupon or distortion are that those skilled in the art can directly draw or be easy to from the disclosed content of the utility model and just associate, and all should belong to protection domain of the present utility model.
Claims (9)
1. the breather valve with gas handoff functionality, is characterized in that, this breather valve comprises:
One breather valve matrix, it has endoporus, offers the air channel of at least one axial trend on the inner hole wall of described breather valve matrix;
One has the valve body of endoporus, it is sheathed in described breather valve matrix, described valve body has the outer face of being located at outside the breather valve matrix, has at least one the first groove and one second groove on the inner hole wall of described valve body, 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, has at least one locating hole on described axle sleeve;
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 in a primary importance correspondence is located at keyway, locating hole and the first groove, described setting element is in a second place correspondence is located at keyway, locating hole and the second groove, so that described valve body is opened with respect to the breather valve matrix or closure.
2. have as claimed in claim 1 the breather valve of gas handoff functionality, it is characterized in that, described locating hole and setting element are three, evenly arrange along the circumferential direction of axle sleeve.
3. the breather valve with gas handoff functionality as claimed in claim 1, is characterized in that, described setting element is ball type device, and the cell wall of described the first groove, the second groove and keyway all has the gradient.
4. the breather valve with gas handoff functionality as claimed in claim 1, is characterized in that, is provided with a sealing ring between the outer face of described valve body and breather valve matrix.
5. the breather valve with gas handoff functionality as claimed in claim 1, is characterized in that, described axle sleeve is fixedly connected with by screw thread with the breather valve matrix.
6. the breather valve with gas handoff functionality as claimed in claim 1, is characterized in that, described the first flexible member and the second flexible member are spring.
7. breathing mask with gas handoff functionality, it comprises: face shield body and at least one breather valve as described in any one in claim 1-6, described breather valve is fixed on described face shield body.
8. breathing mask as claimed in claim 7, is characterized in that, described breather valve matrix is fixedly arranged on described face shield body by the matrix nut.
9. breathing mask as claimed in claim 7, is characterized in that, described breather valve is set to two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320281047 CN203264077U (en) | 2013-05-22 | 2013-05-22 | Breather valve with gas switching function and breathing mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320281047 CN203264077U (en) | 2013-05-22 | 2013-05-22 | Breather valve with gas switching function and breathing mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203264077U true CN203264077U (en) | 2013-11-06 |
Family
ID=49494580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320281047 Withdrawn - After Issue CN203264077U (en) | 2013-05-22 | 2013-05-22 | Breather valve with gas switching function and breathing mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203264077U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285536A (en) * | 2013-05-22 | 2013-09-11 | 上海宝亚安全装备有限公司 | Breathing valve and breathing mask both with gas switching function |
-
2013
- 2013-05-22 CN CN 201320281047 patent/CN203264077U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285536A (en) * | 2013-05-22 | 2013-09-11 | 上海宝亚安全装备有限公司 | Breathing valve and breathing mask both with gas switching function |
| CN103285536B (en) * | 2013-05-22 | 2015-04-15 | 上海宝亚安全装备有限公司 | Breathing valve and breathing mask both with gas switching function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101699514B1 (en) | Portable oxygen respiratory apparatus | |
| CN105889562A (en) | Piston type explosion-proof and water-proof ventilation valve | |
| CN203264077U (en) | Breather valve with gas switching function and breathing mask | |
| CN103212168A (en) | Air suction valve and mask both with function of switching between ambient air and air in air bottle | |
| CN206889779U (en) | A kind of explosion-proof waterproof vent valve | |
| CN103285536B (en) | Breathing valve and breathing mask both with gas switching function | |
| CN103285537A (en) | Inhalation valve and breathing mask both with function of switching ambient air and air-bottle air | |
| CN105833442A (en) | Bottle valve for mouthpiece type respiration gas bottle | |
| CN201379914Y (en) | Switching valve of movable air-source supplying auxiliary escape device | |
| CN203139435U (en) | Air suction valve and mask with switch function between ambient air and gas cylinder air | |
| CN204049269U (en) | The aerated water machine of portable, single use small steel cylinder band safety and dust arrester | |
| CN205082745U (en) | Electrician's safety helmet with lifesaving function | |
| CN205796287U (en) | A kind of ESD of easy donning dismounting | |
| CN208823829U (en) | A kind of respirator pressure reducer alarm whistle device | |
| CN204647238U (en) | The Ventilated cap of speed reducer | |
| CN205069414U (en) | Pedal protection casing has self -locking function's foot switch | |
| CN203620111U (en) | Full mask respiration change-over valve | |
| CN209019801U (en) | A kind of Self-saving breather of chemical oxygen of fast demountable chemical pot for generating oxygen | |
| CN203253074U (en) | Anti-lock gas bottle valve | |
| CN203139436U (en) | Cylinder valve with self-locking function | |
| CN202179794U (en) | Full-sealed chemical protective clothing with emergency breathing opening | |
| CN201067111Y (en) | Helmet with self-helping efficacy | |
| CN203264078U (en) | Air suction valve with ambient air and air-bottle air switching-over function and breathing mask | |
| CN207044056U (en) | A kind of spanner | |
| CN204610878U (en) | A kind of extinguisher valve door device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131106 Effective date of abandoning: 20150415 |
|
| RGAV | Abandon patent right to avoid regrant |