CN203564660U - High-flow suction valve for pressurizing oxygen-supplying mask - Google Patents
High-flow suction valve for pressurizing oxygen-supplying mask Download PDFInfo
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- CN203564660U CN203564660U CN201320747130.2U CN201320747130U CN203564660U CN 203564660 U CN203564660 U CN 203564660U CN 201320747130 U CN201320747130 U CN 201320747130U CN 203564660 U CN203564660 U CN 203564660U
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- air
- diaphragm
- suction valve
- breathing
- oxygen mask
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Abstract
The utility model relates to a high-flow suction valve for a pressurizing oxygen-supplying mask. The high-flow suction valve comprises a suction valve base (2) and a suction diaphragm (1), wherein two connecting pillars (101) are symmetrically arranged at the bottom of the suction diaphragm (1); the connecting pillars (101) are connected with the suction valve base (2) in a plugged form; a groove (102) is arranged in the middle part of the suction diaphragm (1); and at a suction moment, the suction diaphragm (1) is opened from two sides. According to the high-flow suction valve for the pressurizing oxygen-supplying mask, at the suction moment, the suction diaphragm is opened from two sides, so that the opening stability and opening area of the diaphragm are increased, the suction resistance is effectively reduced and the sealing reliability is increased.
Description
Technical field
The utility model relates to the large-flow aspirating device in oxygen mask, more particularly, relates to a kind of pressure oxygen mask large-flow aspirating valve.
Background technology
At present, the air suction valve of known conventional pressure oxygen mask and non-pressurised oxygen mask is all designed to the form of check valve, its fundamental diagram as shown in Figure 1 and Figure 2:
The air suction valve inspiratory resistance using in oxygen mask mainly determines by the performance of air-breathing diaphragm 3a, and it also comprises mask body 1a and guard shield 2a.When pilot is air-breathing, in face shield chamber, will form negative pressure, thereby at this moment air-breathing diaphragm 3a opens and makes oxygen adjust oxygen in device to flow in face shield chamber to make pilot can be drawn onto enough oxygen.When pilot exhales, the waste gas that pilot breathes out forms malleation in face shield chamber, thereby compresses air-breathing diaphragm 3a, and the exhaust gas recirculation that prevents from breathing out is adjusted in device to oxygen.The air-breathing diaphragm 3a of active service air suction valve adopts uniform thickness, and very thin in order to reduce inspiratory resistance diaphragm thickness, and diaphragm unfolding mode randomness is very strong, stable not while causing it to open, thereby makes inspiratory resistance unstable, and it is large that inspiratory resistance becomes.When exhaling, pilot easily in face shield chamber, forms turbulent flow, due to air-breathing diaphragm 3a very thin (thickness is 0.5mm), cause air-breathing diaphragm 3a poorly sealed, thereby the exhaust gas recirculation that pilot breathes out is adjusted in device to oxygen, when pilot is air-breathing, waste gas again in suction body, can be caused to pilot's oxygen-supplying amount deficiency.
Utility model content
The technical problems to be solved in the utility model is, provides a kind of unlatching to stablize, seal reliably, and the little pressure oxygen mask large-flow aspirating valve of inspiratory resistance.
The utility model solves the technical scheme that its technical problem adopts: construct a kind of pressure oxygen mask large-flow aspirating valve, comprise air suction valve seat and air-breathing diaphragm, the bottom of described air-breathing diaphragm is arranged with two joint pins, described joint pin is plugged on described air suction valve seat, the middle part of described air-breathing diaphragm is provided with groove, when air-breathing, described air-breathing diaphragm opens from both sides.
In pressure oxygen mask large-flow aspirating valve described in the utility model, the two ends of described groove are provided with boss.
In pressure oxygen mask large-flow aspirating valve described in the utility model, also comprise adapter and tube connector, described adapter passes described air-breathing diaphragm and is fixed on described air suction valve seat, and described tube connector is communicated with described adapter.
In pressure oxygen mask large-flow aspirating valve described in the utility model, described tube connector adopts the mode of interference fit to be crimped on described connector.
In pressure oxygen mask large-flow aspirating valve described in the utility model, described adapter is fixed on air suction valve seat by nut and sealing ring.
In pressure oxygen mask large-flow aspirating valve described in the utility model, the groove thickness of described air-breathing diaphragm is 0.2～0.3mm.
In pressure oxygen mask large-flow aspirating valve described in the utility model, also comprise the protective cover being socketed on described air suction valve seat.
Implement pressure oxygen mask large-flow aspirating valve of the present utility model, there is following beneficial effect:
1, air-breathing diaphragm adopts the version that two lobes are split.When air-breathing, diaphragm opens from both sides, has improved unlatching stability and the open area of diaphragm, can effectively reduce inspiratory resistance, and can improve the reliability of sealing.
2, the middle part of air-breathing diaphragm is provided with groove, with this area thickness of attenuate, reaches the object of controlling diaphragm opening ways and reducing inspiratory resistance.
3, owing to having reduced inspiratory resistance, therefore can increase the integral thickness of air-breathing diaphragm, to improve reliability and the air-tightness of its switching, make it open the stable impact that is not subject to disorderly air-flow in face shield.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is structural representation when air suction valve is closed in prior art;
Fig. 2 is structural representation when air suction valve is opened in prior art;
Fig. 3 is the structural representation of pressure oxygen mask large-flow aspirating valve;
Fig. 4 is the structural representation of pressure oxygen mask large-flow aspirating valve;
Fig. 5 is the front view of air-breathing diaphragm;
Fig. 6 is the top view of air-breathing diaphragm;
Fig. 7 is the A-A echelon sectional view in Fig. 6;
Fig. 8 is pressure piping schematic diagram.
The specific embodiment
For technical characterictic of the present utility model, object and effect being had more clearly, understand, now contrast accompanying drawing and describe the specific embodiment of the present utility model in detail.
As shown in Fig. 3-Fig. 7, the utility model pressure oxygen mask large-flow aspirating valve comprises air suction valve seat 2 and air-breathing diaphragm 1.
The bottom of air-breathing diaphragm 1 is arranged with two joint pins 101.Joint pin 101 is pegged graft, and also barb is on air suction valve seat 2, and joint pin 101 has elasticity, has guaranteed sealing effectiveness.The version that air-breathing diaphragm 1 adopts two lobes to split.When air-breathing, air-breathing diaphragm 1 opens from both sides, has improved unlatching stability and the open area of air-breathing diaphragm 1, can effectively reduce inspiratory resistance, and can improve the reliability of sealing.The middle part of air-breathing diaphragm 1 is provided with groove 102, and with this area thickness of attenuate, the thickness of groove 102 is 0.2mm～0.3mm, is preferably 0.2mm, to reach the object of controlling air-breathing diaphragm 1 opening ways and reducing inspiratory resistance.Owing to having reduced inspiratory resistance, therefore can increase the integral thickness of air-breathing diaphragm 1, in the present embodiment, the thickness at other thickening position of air-breathing diaphragm 1 is 0.7mm～1mm, be preferably 0.7mm, to improve reliability and the air-tightness of its switching, make it open the stable impact that is not subject to disorderly air-flow in face shield.
As shown in Figure 6, Figure 7, further, the two ends of groove 102 are provided with boss 103, and boss 103 carries out partial thickening to groove 102 two ends, to improve the bulk strength at this position.
As shown in Fig. 3, Fig. 8, further, air suction valve also comprises adapter 3 and tube connector 4, and adapter 3 passes air-breathing diaphragm 1 and is fixed on air suction valve seat 2, and tube connector 4 is communicated with adapter 3.Tube connector 4 can adopt the mode of interference fit to be crimped on connector, and adapter 3 is fixed on air suction valve seat 2 by nut 6 and sealing ring 7, and in the present embodiment, nut 6 is hexagon thin nut, and sealing ring 7 is O shape rubber seal.By adapter 3 and tube connector 4, a part of gas is incorporated into the overbottom pressure chamber of outlet valve, plays the effect of pressure piping, can reduce unnecessary pipeline, reach the object of weight reduction.
As shown in Figure 3, further, air suction valve also comprises the protective cover 5 being socketed on air suction valve seat 2, plays the effect of protection.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not departing from the scope situation that the utility model aim and claim protect, also can make a lot of forms, within these all belong to protection of the present utility model.
Claims (7)
1. a pressure oxygen mask large-flow aspirating valve, comprise air suction valve seat (2) and air-breathing diaphragm (1), it is characterized in that, the bottom of described air-breathing diaphragm (1) is arranged with two joint pins (101), described joint pin (101) is plugged on described air suction valve seat (2), the middle part of described air-breathing diaphragm (1) is provided with groove (102), and when air-breathing, described air-breathing diaphragm (1) opens from both sides.
2. pressure oxygen mask large-flow aspirating valve according to claim 1, is characterized in that, the two ends of described groove (102) are provided with boss (103).
3. pressure oxygen mask large-flow aspirating valve according to claim 1, it is characterized in that, also comprise adapter (3) and tube connector (4), described adapter (3) is through described air-breathing diaphragm (1) and be fixed on described air suction valve seat (2) above, and described tube connector (4) is communicated with described adapter (3).
4. pressure oxygen mask large-flow aspirating valve according to claim 3, is characterized in that, described tube connector (4) adopts the mode of interference fit to be crimped on described connector.
5. pressure oxygen mask large-flow aspirating valve according to claim 3, is characterized in that, described adapter (3) is fixed on air suction valve seat (2) by nut (6) and sealing ring (7).
6. pressure oxygen mask large-flow aspirating valve according to claim 1, is characterized in that, groove (102) thickness of described air-breathing diaphragm (1) is 0.2～0.3mm.
7. pressure oxygen mask large-flow aspirating valve according to claim 1, is characterized in that, also comprises the protective cover (5) being socketed on described air suction valve seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320747130.2U CN203564660U (en) | 2013-11-22 | 2013-11-22 | High-flow suction valve for pressurizing oxygen-supplying mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320747130.2U CN203564660U (en) | 2013-11-22 | 2013-11-22 | High-flow suction valve for pressurizing oxygen-supplying mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203564660U true CN203564660U (en) | 2014-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320747130.2U Expired - Fee Related CN203564660U (en) | 2013-11-22 | 2013-11-22 | High-flow suction valve for pressurizing oxygen-supplying mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203564660U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106512249A (en) * | 2017-01-06 | 2017-03-22 | 东莞市利发爱尔空气净化系统有限公司 | Breathing valve and mask |
| WO2017079967A1 (en) * | 2015-11-13 | 2017-05-18 | Honeywell International Inc. | Auto-open inhalation valve for emergency escape breathing device |
| CN106730460A (en) * | 2017-01-06 | 2017-05-31 | 东莞市利发爱尔空气净化系统有限公司 | A kind of breather valve and mouth mask |
| CN112402823A (en) * | 2020-10-19 | 2021-02-26 | 北京安达维尔航空设备有限公司 | Novel oxygen supply mask |
-
2013
- 2013-11-22 CN CN201320747130.2U patent/CN203564660U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017079967A1 (en) * | 2015-11-13 | 2017-05-18 | Honeywell International Inc. | Auto-open inhalation valve for emergency escape breathing device |
| CN106512249A (en) * | 2017-01-06 | 2017-03-22 | 东莞市利发爱尔空气净化系统有限公司 | Breathing valve and mask |
| CN106730460A (en) * | 2017-01-06 | 2017-05-31 | 东莞市利发爱尔空气净化系统有限公司 | A kind of breather valve and mouth mask |
| CN112402823A (en) * | 2020-10-19 | 2021-02-26 | 北京安达维尔航空设备有限公司 | Novel oxygen supply mask |
| CN112402823B (en) * | 2020-10-19 | 2021-08-17 | 北京安达维尔航空设备有限公司 | Oxygen supply mask |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20191122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |