CN201129515Y - Automatic air discharge valve - Google Patents
Automatic air discharge valve Download PDFInfo
- Publication number
- CN201129515Y CN201129515Y CNU2007201886068U CN200720188606U CN201129515Y CN 201129515 Y CN201129515 Y CN 201129515Y CN U2007201886068 U CNU2007201886068 U CN U2007201886068U CN 200720188606 U CN200720188606 U CN 200720188606U CN 201129515 Y CN201129515 Y CN 201129515Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- button
- valve
- utility
- air bag
- 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.)
- Expired - Fee Related
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- Safety Valves (AREA)
Abstract
The utility model discloses an automatic exhaust valve, comprising a valve body, which is characterized in that the valve body is movably provided with an internal button under which a spring is provided to contact tightly the button and an upper cover, the valve body is provided with an internal air path whose tail is provided with an air inlet. The automatic exhaust valve, under the spring force and external force can automatically open to exhaust in demand range, the exhaust valve adopts dual-layer pneumatic seal, the exhaustion pressure is adjustable, and the utility model has simple structure, reliable operation, simple installment, small volume, simple structure, firm and beautiful appearance.
Description
Technical field
The utility model relates to the outlet valve of using on a kind of gas device, especially the automatic control pressure vent of using on the resuscitation apparatus air bag.
Background technique
In radiator pipeline, hot water heating pipeline, all adopt automatic control pressure vent to carry out exhaust; Be called " integral heat emission device automatic control pressure vent " as name, the patent No. is that the Chinese utility application file of ZL200520022159.X is disclosed by valve body, valve seat, valve rod, spool, spring, seal ring, the automatic control pressure vent that float and needle constitute, and another name is called " automatic control pressure vent ", the patent No. is that the Chinese utility application file of ZL200520008822.0 is disclosed by the valve upper body, the valve lower body, the gas barrier chamber, lever, fulcrum frame, formations such as float, on valve seat, be provided with exhaust port, valve seat and spool are by spiral being connected of spiral draught spring, make valve seat and spool closure, spool is provided with seal rubber pad, makes it not lean on the buoyancy closing seam of float; The outlet valve of above-mentioned prior art needs bigger buoyancy or higher pressure to open, and structure is complicated, exhaust effect is not ideal enough, the stability of work is not high.And, the more important thing is that above-mentioned outlet valve can not be used on the resuscitation apparatus, can not cooperate with the air bag of resuscitation apparatus and resuscitation apparatus is fine, automatic vent well, the restriction of perhaps not enough because of air displacement or exhaust pressure makes the outlet valve cisco unity malfunction.Be applicable to the outlet valve of resuscitation apparatus upper gasbag, when gas pressure is too high in the air bag, just need carry out exhaust, if not exhaust will make the overpressure of air bag, cause air bag to burst, just work can not have been proceeded, if work under these circumstances, personnel's safety problem will take place so, so must being installed on air bag, an outlet valve comes to make the gas pressure can be not too high and cause dangerous generation to air bag decompression.
Summary of the invention
The utility model can not be used on the resuscitation apparatus at the outlet valve of prior art, can not cooperate with the air bag of resuscitation apparatus and resuscitation apparatus is fine, can not self-bleeding well deficiency, provide a kind of simple in structure, in the scope of needs, can open the automatic control pressure vent that carries out exhaust.
The technical solution of the utility model: automatic control pressure vent, comprise valve body, it is characterized in that: activity is provided with button in described valve body, is provided with spring below the button, and button and loam cake are fitted tightly; Be provided with gas channel in valve body, the tail end of gas channel is a suction port;
Further feature is: described valve body is made of loam cake, middle cover and lower cover, between loam cake and the middle cover, adopt between middle cover and the lower cover and be threaded, seals with seal ring.
Automatic control pressure vent of the present utility model with respect to prior art, has following characteristics:
1, adopts the effect of spring force and external force, in the scope of needs, make outlet valve open exhaust automatically.
2, the outlet valve sealing adopts bilayer to compress pressurized seal, and the pressure of exhaust can be regulated.
3, overall structure is simply light and handy, and working stability is reliable, and is easy for installation.
4, volume is light and handy, and is simple in structure, firmly whole, attractive in appearance.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described:
Accompanying drawing is the utility model structure diagram.
Embodiment
Among the figure, 1-valve body, 2-button, 3-loam cake, 4-middle cover, 5-lower cover, 6-spring, 7-gas channel, 8-suction port, 9-relief opening;
Automatic control pressure vent of the present utility model comprises valve body 1, and valve body 1 is made of interconnective loam cake 3, middle cover 4 and lower cover 5, button 2 is movably arranged in the valve body 1, specifically be arranged in the relief opening 9 of loam cake 3, be provided with spring 6 below the button 2, button 2 and loam cake 3 are fitted tightly; Between button 2 and the loam cake 3, adopt seal ring to seal, keep good sealing state.Be provided with gas channel 7 in valve body 1, supplied gas flows through, and the tail end of gas channel 7 is suction ports 8, and suction port 8 is arranged in the lower cover 5.Between loam cake 3 and the middle cover 4, be connected between middle cover 4 and the lower cover 5, normally adopt to be threaded, seal, the tightness when guaranteeing whole device work with seal ring.The sealing means that automatic control pressure vent of the present utility model adopted, seal ring etc. as prior art, are not further described at this.
Working procedure of the present utility model:
The loam cake 3 of automatic control pressure vent of the present utility model and an end of button 2 are installed in the air bag of resuscitation apparatus; Air bag will expand when the pressure in the air bag reaches setup pressure value, and the gas in the air bag is given 2 one active forces of button.Air bag also expand into the peak certain the time when pressure increases to, the gas pressure that button 2 is subjected to is greater than the elastic force of spring 6, spring 6 inwardly shrinks, button 2 is compressed and inwardly shrinks, disengage between loam cake 3 and the button 2 like this and produce the slit, make gas in the air bag along the gas channel 7 of this slit through relief opening 9 enters valve body 1 in and automatic discharge.When the pressure in the air bag reaches setup pressure value, outwards reach the effect of exhausting air automatically.
During concrete technological design, difficult point is the time of automatic vent opening of valves, is exactly whether air displacement can meet the demands in addition, and the unlatching of outlet valve is to decide according to the pressure in the air bag, the possibility of air bag blast will take place when gasbag pressure is excessive, thereby brings danger to the people.Air pressure is crossed to open when hanging down and will be caused the air feed deficiency, so the time of exhaust valve opening is a big difficult point of outlet valve design, in order to realize to open outlet valve, just must know the state of air bag, how many pressure maximums in the air bag is, what are with needs gas minimum pressure, estimate the pressure of required unlatching outlet valve with the spring in the outlet valve; Select suitable spring again, the pressure in the air bag is reached when force value is set, just can open automatically, outwards automatic exhausting air makes the outlet valve normal and stable operation.
Claims (2)
1, automatic control pressure vent comprises valve body (1), it is characterized in that: activity is provided with button (2) in the relief opening (9) of described valve body (1), is provided with spring (6) below the button (2), and button (2) and loam cake (3) are fitted tightly; Be provided with gas channel (7) in valve body (1), the tail end of gas channel (7) is suction port (8).
2, automatic control pressure vent according to claim 1, it is characterized in that: described valve body (1) is made of loam cake (3), middle cover (4) and lower cover (5), between loam cake (3) and the middle cover (4), adopt between middle cover (4) and the lower cover (5) and be threaded, seal with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201886068U CN201129515Y (en) | 2007-12-21 | 2007-12-21 | Automatic air discharge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201886068U CN201129515Y (en) | 2007-12-21 | 2007-12-21 | Automatic air discharge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129515Y true CN201129515Y (en) | 2008-10-08 |
Family
ID=40017361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201886068U Expired - Fee Related CN201129515Y (en) | 2007-12-21 | 2007-12-21 | Automatic air discharge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201129515Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537144A (en) * | 2010-12-14 | 2012-07-04 | 苏州奥凯五金机电有限公司 | Blocking indehiscent air brake |
-
2007
- 2007-12-21 CN CNU2007201886068U patent/CN201129515Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537144A (en) * | 2010-12-14 | 2012-07-04 | 苏州奥凯五金机电有限公司 | Blocking indehiscent air brake |
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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: 20081008 Termination date: 20151221 |
|
| EXPY | Termination of patent right or utility model |