CN101664576A - Air supply valve - Google Patents
Air supply valve Download PDFInfo
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- CN101664576A CN101664576A CN 200810119260 CN200810119260A CN101664576A CN 101664576 A CN101664576 A CN 101664576A CN 200810119260 CN200810119260 CN 200810119260 CN 200810119260 A CN200810119260 A CN 200810119260A CN 101664576 A CN101664576 A CN 101664576A
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- steam supply
- valve
- valve body
- supply valve
- air chamber
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Abstract
The invention provides an air supply valve, which comprises a valve body, a valve cavity and a valve core, wherein the valve cavity is provided with a first air chamber communicated with an air inletpipe and a second air chamber communicated with an air outlet pipe, and the first air chamber and the second air chamber are selectively communicated through a gasket; the first end of the valve coreis selectively stretched in the second air chamber, while the second end of the valve core is positioned outside the valve body, wherein the second end of the valve core positioned outside the valve body is provided with an actuator, a first spring is sleeved on the part of the valve core between the actuator and the valve body, and a second spring is biased between the air inlet pipe and the gasket. The air supply valve can conveniently supply large-flow air when the actuator is started and can quickly cut off the airflow when the actuator is closed, and reduces the leakage.
Description
Technical field
The present invention relates to the Medical Equipment field, relate in particular to a kind of device that suitable gas (such as oxygen) is provided for anesthetic machine or respirator.
Background technology
At present, when anesthetic machine is started shooting, need promptly with gas circuit gassies such as anesthesia gas circuit, anesthesia respirators, usually structure more complicated in the steam supply valve device of the prior art, and can not be rapidly from movable sealing after opening, and adopt slipper seal, sealing is relatively poor, can't satisfy the demands.Thereby need a kind of steam supply valve device, when starting the actuated piece of this device, can conveniently provide gas and when closing actuated piece, can block air-flow rapidly automatically and realize that excellent sealing and leakage reduce.
Summary of the invention
The present invention is devoted to overcome the above-mentioned defective of prior art just and makes.Technical problem to be solved by this invention is to propose a kind of steam supply valve.
For achieving the above object, the invention provides a kind of steam supply valve, comprising: valve body; Valve pocket, have first air chamber that communicates with inlet suction port and second air chamber that communicates with air outlet adapter, be provided with sealing gasket in first air chamber, bias voltage has second spring between inlet suction port and the sealing gasket, so that sealing gasket optionally is pressed against on the end face of second air chamber, steam supply valve also comprises spool, first end of spool optionally stretches in second air chamber and is relative with described sealing gasket, and second end is positioned at outside the valve body, wherein, the second outer end of valve body that is positioned at of spool is provided with actuated piece, first spring housing be located at spool on the part between actuated piece and the valve body.
Preferably, steam supply valve also comprises guide finger, and an end of guide finger is arranged in valve body, and the other end is arranged in actuated piece, rotates to prevent actuated piece.
Alternatively, an end of guide finger is fixed in the valve body, and the other end is positioned at the groove of actuated piece.
Alternatively, an end of guide finger is arranged in the groove that is arranged at valve body, and the other end is fixed in the actuated piece.
Preferably, steam supply valve also can comprise sealing ring, sealing ring be arranged on the valve body around the groove around the spool, and be fixed and clamped in groove by valve gap.
Preferably, sealing ring is poly-tetrafluoro U type circle.
In the normal state, promptly under the actuated piece releasing orientation, second spring is by pretension, and initial tension of spring and inlet suction port place bleed pressure are pressed on sealing gasket on the end face of second air chamber, realizes end face seal; In working order down, when pressing actuated piece, the movable valve plug of trying hard to recommend that puts on first spring by actuated piece moves towards sealing gasket, overcome initial tension of spring and inlet suction port place bleed pressure is pushed sealing gasket open from the end face of second air chamber, make the compression of second spring stress simultaneously, thereby the gas at intake interface place enters second air chamber via first air chamber, and provides gas by air outlet adapter to the external equipment such as anesthetic machine or respirator etc.; When unclamping actuated piece, spool, actuated piece set back under the elastic force effect of first spring, and under the effect of second spring force and inlet suction port place bleed pressure, sealing gasket is pressed on the end face of second air chamber once more, block air-flow rapidly, finish transfer of gas.
Therefore, steam supply valve according to the present invention is simple in structure and can be from movable sealing; Owing to adopt sealing gasket to realize end face seal and can be around the sealing ring of spool setting such as poly-tetrafluoro U type circle, thereby good airproof performance and prevent that effectively gas from leaking.
Should be appreciated that above generality is described and the following detailed description is all enumerated and illustrative, purpose is for to the claimed further instruction that the invention provides.
Description of drawings
Accompanying drawing is formed the part of this description, with helping further understand the present invention.These accompanying drawings illustrate some embodiments of the present invention, and can be used for illustrating principle of the present invention with description.In the accompanying drawing:
Fig. 1 is the sectional view according to the steam supply valve of the embodiment of the invention, and wherein, steam supply valve is in sealing state;
Fig. 2 is the sectional view according to the steam supply valve of the embodiment of the invention, and wherein, steam supply valve is in the air feed state.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.Identical in the accompanying drawings parts are represented with identical label.
Fig. 1 shows the steam supply valve that is in sealing state according to first embodiment of the invention, and Fig. 2 shows the steam supply valve that is in the air feed state according to first embodiment of the invention.This steam supply valve 40 comprises: valve body 4; Valve pocket 13, have first air chamber 131 that communicates with inlet suction port 1 and second air chamber 132 that communicates with air outlet adapter 11, be provided with sealing gasket 3 in first air chamber 131, bias voltage has second spring 12 between inlet suction port 1 and the sealing gasket 3, so that sealing gasket 3 optionally is pressed against on the end face of second air chamber 132.In this embodiment, on inlet suction port 1 such as the valve that is connected in valve body 4 by thread connecting mode stifled 2, valve stifled 2 communicates with valve pocket 13.
As depicted in figs. 1 and 2, this steam supply valve 40 also comprises spool 7, first end of spool 7 optionally stretches in second air chamber 132 and is relative with sealing gasket 3, and second end is positioned at outside the valve body 4, wherein, the second outer ends of valve body 4 that are positioned at of spool 7 are provided with actuated piece such as button 8, first spring 9 be set in spool 7 on the part between button 8 and the valve body 4.Under common state (button releasing orientation) as shown in Figure 1, second spring 12 is by pretension, and initial tension of spring and inlet suction port 1 place's bleed pressure are pressed on sealing gasket 3 on the end face of second air chamber 132, realizes end face seal, cuts off transfer of gas.
Under duty shown in Figure 2, promptly pressed the button 8 o'clock, the movable valve plug 7 of trying hard to recommend that puts on first spring 9 by button 8 moves towards sealing gasket 3, thereby the pretightning force and the inlet suction port 1 place's bleed pressure that overcome second spring 12 are pushed sealing gasket 3 open from the end face of second air chamber 132, make second spring 12 be subjected to force compresses simultaneously, thereby the gas at intake interface 1 place enters second air chamber 132 via first air chamber 131, and provides gas by air outlet adapter 11 to the external equipment such as anesthetic machine or respirator etc.; When release button 8, spool 7, button 8 set back under the elastic force effect of first spring 9, sealing gasket 3 is pressed on the end face of second air chamber 132 under the effect of second spring force 12 and inlet suction port 1 place's bleed pressure once more, blocks air-flow rapidly, finishes transfer of gas.
As shown in Figure 1, steam supply valve 40 also comprises valve gap 5 and guide finger 6, and an end of guide finger 6 passes valve gap 5 and stretches in the valve body 4, and the other end is arranged in button 8.In this embodiment, an end of guide finger 6 passes valve gap 5 and is fixed in the valve body 4, and the other end is positioned at the groove 81 of button 8.Replacedly, an end of guide finger 6 passes the groove that valve gap 5 is arranged in valve body 4, and the other end is fixed in the button 8.Adopt guide finger 6 can prevent that button 8 from rotating, thus guide spool 7 towards or do linear moving away from valve body 4.
In this embodiment, steam supply valve 40 also comprises the sealing ring 10 such as poly-tetrafluoro U type circle, poly-tetrafluoro U type circle 10 be arranged on the valve body 4 around the groove 101 around the spool 7, and be fixed and clamped in groove 101 by valve gap 5.Poly-tetrafluoro U type circle 10 can self-lubricating and wear-resisting, meets biocompatibility requirement, prevents that the gas that causes because of the wearing and tearing of spool from leaking.
Therefore, steam supply valve according to the present invention is simple in structure and can be from movable sealing; Owing to adopt sealing gasket to realize end face seal and can be around the sealing ring of spool setting such as poly-tetrafluoro U type circle, thereby good airproof performance and prevent that effectively gas from leaking.
Although the present invention is illustrated with reference to accompanying drawing and preferred embodiment, obviously, for a person skilled in the art, under the prerequisite that does not deviate from the spirit and scope of the present invention, can make various changes and variation to the present invention.Various change of the present invention, the content that changes by appending claims and equivalent thereof contain.
Claims (8)
1. a steam supply valve (40) comprising: valve body (4); Valve pocket (13), have first air chamber (131) that communicates with inlet suction port (1) and second air chamber (132) that communicates with air outlet adapter (11), it is characterized in that, be provided with sealing gasket (3) in described first air chamber (131), bias voltage has second spring (12) between described inlet suction port (1) and the described sealing gasket (3), so that described sealing gasket (3) optionally is pressed against on the end face of described second air chamber (132), described steam supply valve (40) also comprises spool (7), first end of described spool optionally stretches in described second air chamber (132) and is relative with described sealing gasket (3), and second end is positioned at outside the described valve body (4), wherein, the second outer end of described valve body (4) that is positioned at of described spool (7) is provided with actuated piece (8), first spring (9) be set in described spool (7) on the part between described actuated piece (8) and the described valve body (4).
2. steam supply valve according to claim 1 (40) is characterized in that, described steam supply valve (40) also comprises guide finger (6), and an end of described guide finger (6) is arranged in described valve body (4), and the other end is arranged in described actuated piece (8).
3. quick steam supply valve according to claim 2 (40) is characterized in that, an end of described guide finger (6) is fixed in the described valve body (4), and the other end is positioned at the groove (81) of described actuated piece (8).
4. quick steam supply valve according to claim 2 (40) is characterized in that, an end of described guide finger (6) is arranged in the groove that is arranged at described valve body (4), and the other end is fixed in the described actuated piece (8).
5. steam supply valve according to claim 1 (40), it is characterized in that, described steam supply valve (40) also comprises sealing ring (10), described sealing ring (10) be arranged on the described valve body (4) around described spool (7) groove (101) on every side, and be fixed and clamped in described groove (101) by valve gap (5).
6. steam supply valve according to claim 5 (40) is characterized in that, described steam supply valve (40) also comprises guide finger (6), and an end of described guide finger (6) passes described valve gap (5) and stretches in the described valve body (4), and the other end stretches in the described actuated piece (8).
7. according to claim 5 or 6 described steam supply valves (40), it is characterized in that described sealing ring (10) is a U type circle.
8. steam supply valve according to claim 7 (40) is characterized in that, described sealing ring (10) is poly-tetrafluoro U type circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810119260 CN101664576B (en) | 2008-09-01 | 2008-09-01 | Air supply valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810119260 CN101664576B (en) | 2008-09-01 | 2008-09-01 | Air supply valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101664576A true CN101664576A (en) | 2010-03-10 |
| CN101664576B CN101664576B (en) | 2013-07-10 |
Family
ID=41801453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810119260 Active CN101664576B (en) | 2008-09-01 | 2008-09-01 | Air supply valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101664576B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861011A (en) * | 2015-12-14 | 2017-06-20 | 北京谊安医疗系统股份有限公司 | A kind of oxygen flush valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2431444Y (en) * | 2000-07-11 | 2001-05-23 | 戴国平 | Gas leakage alarm self-closing valve |
| CN2506846Y (en) * | 2001-10-12 | 2002-08-21 | 张海辉 | Multi=function gas cylinder cutting off valve |
| CN2524035Y (en) * | 2002-01-15 | 2002-12-04 | 谭锦镛 | Remote-control safety valve for gas supply pipeline |
| CN2723795Y (en) * | 2004-05-28 | 2005-09-07 | 马卫民 | Double magnetic steel pulse electromagnetic gas valve |
-
2008
- 2008-09-01 CN CN 200810119260 patent/CN101664576B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861011A (en) * | 2015-12-14 | 2017-06-20 | 北京谊安医疗系统股份有限公司 | A kind of oxygen flush valve |
| CN106861011B (en) * | 2015-12-14 | 2019-02-12 | 北京谊安医疗系统股份有限公司 | A kind of oxygen flush valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101664576B (en) | 2013-07-10 |
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