CN2265459Y - Automatic exhausting valve - Google Patents
Automatic exhausting valve Download PDFInfo
- Publication number
- CN2265459Y CN2265459Y CN 96203488 CN96203488U CN2265459Y CN 2265459 Y CN2265459 Y CN 2265459Y CN 96203488 CN96203488 CN 96203488 CN 96203488 U CN96203488 U CN 96203488U CN 2265459 Y CN2265459 Y CN 2265459Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- valve rod
- automatic control
- sealing
- 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
Links
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model relates to an automatic exhaust device, particularly a float type automatic exhaust valve which is used in a water heating system. The utility model comprises a conical casing, a valve body which is arranged at the top part of the conical casing, and a valve rod which is matched with the valve body, wherein, waterproof jackets are arranged on the valve body and the valve rod. The utility model has the advantages that the structure is simple, water can be effectively prevented from being contacted with functional elements and sealing elements of the exhaust valve, and the functional elements and the sealing elements are prevented from failure for the functions and failure for the sealing because of remnant scales and impurities.
Description
The utility model relates to a kind of automatic exhaust device, especially for the floating type automatic control pressure vent of water heating system.
Traditional floating type automatic control pressure vent the malfunctioning or seal failure of movable part action promptly occurs and causes outlet valve to leak or the consequence of degassing function forfeiture in use for some time.One of reason that causes this situation be because: the air chamber height on outlet valve top is too low, make workpiece and Sealing in the valve often directly contact with water, cause the impurity or the incrustation scale that carry in the water residual, be deposited between the gap or Sealing of workpiece.
At above-mentioned deficiency, the someone proposes solutions such as the outlet valve shell upper increase.Such scheme has solved the isolating problem of water and functor Sealing when current pass in and out outlet valve reposefully.But in actual use, the water in the valve is not to pass in and out reposefully all the time, and usually can have a large amount of swellings to go in the valve suddenly, makes interior frequent big ups and downs of water level of valve or spray splash, and at this moment can make water and functor in the valve equally, the Sealing contact.Still can cause impurity in the water or incrustation scale residual, be deposited between functor or the Sealing.
The purpose of this utility model is in order to overcome above-mentioned deficiency, provides that a kind of isolation effect is good, sealing is reliable, can stop outlet valve functor or Sealing to contact with water fully, thereby guarantee that whole device is flexible, reliably Yun Hang automatic control pressure vent.
Thereby providing a kind of Shuitu in can limiting valve, another purpose of the present utility model so pour in or withdraw from water level big ups and downs that cause in the valve or the automatic control pressure vent that The water splash in all directions.
The 3rd purpose of the present utility model provides and a kind ofly can guarantee reliable sealing between valve body and the valve rod, can often not move the generation deviation because of valve body, causes the automatic control pressure vent of the seal failure between the two.
Floating type automatic control pressure vent of the present utility model comprises a shell, places the valve body of shell upper to reach the valve rod that is complementary with this valve body, is provided with exhaust port on valve body, between valve body and the valve rod Sealing is arranged, and described shell upper is a cone structure.Valve body places vertex of a cone place, and valve body and valve rod are provided with waterproof jacket.
In order effectively workpiece and Sealing to be isolated, can make the waterproof jacket on valve body and the valve rod form a mazy type waterproof construction.Between two waterproof jackets, form an exhaust passage.
Be water level big ups and downs in the check valve, an air damping hole is set on the vent of valve body, can make like this and reduce the exhaust slowly of the interior gas of valve the water level big ups and downs and reached the situation that The water splash in all directions.
For making between valve body and the valve rod when stopping exhaust, keep good sealing state, a sealing gasket that places in the pad groove is set between the two, be provided with the adjustment spring between pad groove bottom and the valve rod.
The utility model is simple in structure, and isolation, good water-proof effect have avoided outlet valve functor or Sealing to contact with water fully, has suppressed water level big ups and downs in the valve.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the sectional drawing of the utility model floating type automatic control pressure vent.
With reference to Fig. 1, the utility model has a shell 22, valve body 17 is fixed on the top of shell 22, and valve body 17 bottoms are and the valve rod 15 of its coupling that the bottom of valve rod links to each other with cursory 5 by a pin 19, the top of shell 22 is cone structures, valve body 17 places the drift angle place of conical shell, and the diameter that is respectively arranged with upper and lower waterproof jacket 18 and 7, two waterproof jackets on valve body 17 and valve rod 15 does not wait, constitute a mazy type waterproof construction, the space between the two promptly forms exhaust passage 9.This exhaust passage 9 can link to each other with the exhaust nozzle 10 on the valve body 17, outlet port, top at exhaust nozzle 10 is provided with air damping hole 11, in valve body lower portion a sealing gasket 12 that places in the pad groove 13 is arranged, be to adjust spring 14 between pad groove 13 and the valve rod 15, because all functions part between valve body 17 and the valve rod 15, Sealing all is in the protective range of two waterproof jackets, so water in the whole outlet valve, it no matter is fluctuation or The water splash in all directions, not can with Sealing, the functor contact, thus these parts not scaling or impurity guaranteed.
Gas in valve, when liquid is in state of equilibrium, valve rod 15 is by cursory picking-up, and the sealing gasket 12 at its top is shut the exhaust nozzle on the valve body 17 10, and gas increases in valve, when pressure increases, part water in the valve is discharged from outside the valve, and at this moment, cursory 5 by deadweight decline, also lose simultaneously supporting to valve rod 15, cause valve rod 15 to lower slider, sealing gasket 12 breaks away from exhaust nozzle 10, and gas is by exhaust passage 9 in the valve, outside 11 expulsion valves of exhaust nozzle 10 air damping holes, along with the discharge of gas, water reenters in the valve, holds up cursory 5 gradually, valve rod 15 with on sliding, again exhaust nozzle 10 is shut, so repeatedly, promptly reached the automatic vent effect.
Claims (4)
1, a kind of floating type automatic control pressure vent, comprise shell (22), place the valve body (17) of shell upper and the valve rod (15) that is complementary with this valve body, sealing gasket (12) is arranged being provided with on the valve body (17) between exhaust nozzle (10) valve body (17) and the valve rod (15), the top that it is characterized in that shell (22) is cone structure, valve body (17) places vertex of a cone place, and valve body (17) and valve rod (15) are provided with waterproof jacket (18.7).
2, floating type automatic control pressure vent as claimed in claim 1, it is characterized in that placing the last waterproof jacket (18) on the valve body (17) to constitute a mazy type waterproof construction, an exhaust passage (9) is arranged between two waterproof jackets with placing the following waterproof jacket (7) on the valve rod (15).
3, according to the floating type automatic control pressure vent of claim 1, it is characterized in that the sealing gasket (12) between valve body (17) and the valve rod (15) places in the pad groove (13), be provided with spring (14) between pad groove (13) bottom and the valve rod (15).
4, according to claim 1,2 or 3 floating type automatic control pressure vent, it is characterized in that the exhaust nozzle (10) of valve body (17) is provided with air damping hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96203488 CN2265459Y (en) | 1996-03-05 | 1996-03-05 | Automatic exhausting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96203488 CN2265459Y (en) | 1996-03-05 | 1996-03-05 | Automatic exhausting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2265459Y true CN2265459Y (en) | 1997-10-22 |
Family
ID=33889053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96203488 Expired - Fee Related CN2265459Y (en) | 1996-03-05 | 1996-03-05 | Automatic exhausting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2265459Y (en) |
-
1996
- 1996-03-05 CN CN 96203488 patent/CN2265459Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |