CN2147401Y - Multi-sealing one-way valve for cutting off - Google Patents
Multi-sealing one-way valve for cutting off Download PDFInfo
- Publication number
- CN2147401Y CN2147401Y CN 92242590 CN92242590U CN2147401Y CN 2147401 Y CN2147401 Y CN 2147401Y CN 92242590 CN92242590 CN 92242590 CN 92242590 U CN92242590 U CN 92242590U CN 2147401 Y CN2147401 Y CN 2147401Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- sealing
- spool
- bedding
- 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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Abstract
The utility model relates to a multi-sealing one-way stop valve, which is composed of a valve body, a valve core and a valve cap, wherein, an inlet and an outlet are arranged in the valve body; the valve body and the valve core are sealed by plastic; the plastic is provided with a sealing cap connected with the valve body; the plastic and the valve body are sealed at the lower part of the valve core; the valve cap and the valve body are sealed. Multiple seals and a plastic compression seal are combined. The utility model is especially suitable for matching with a refrigeration device, the leakage quantity of the dynamic state is smaller than 1 gram, and the stable state is smaller than 0.5 gram. The utility model has the advantages of long service life, compact structure, small size, etc.
Description
The utility model relates to unidirectional stop valve, and it is supporting to be specially adapted to chiller plant.
The unidirectional stop valve that uses on chiller plant because of the refrigerant environmental pollution endangers greatly, so the sealability of valve is required height, stipulates that the dynamic year leakage rate of requirement restrains less than 5.56, and static state restrains less than 2.8.And there is unreasonable structure in the existing unidirectional stop valve of using, relies on seal with O ring between its valve body and the spool, and major defect is one to be that effective sealing area is little, the 2nd, and O shape enclose by self Expansion sealing, and three are to use the life-span to lack.
The purpose of this utility model is a kind of compression seal that adopts of design, and sealing contact surface is big, the unidirectional stop valve of long service life.
Another purpose of the present utility model is the resealing unidirectional stop valve that multiple-sealed device is arranged between valve body and the spool.
The technological scheme of the utility model unidirectional stop valve is: be made up of valve body, spool and bonnet, import and outlet are arranged in the valve body, by the bedding and padding sealing, the sealing cover that connects valve body is arranged on the bedding and padding between valve body and spool, the spool upper end is interior hexagonal structure.
Unidirectional stop valve of the present utility model avoids damaging bedding and padding in order to protect when the bedding and padding lid is installed, and sealing gasket is installed at the bedding and padding two ends.
Resealing unidirectional stop valve of the present utility model, formed by valve body, spool and bonnet, import and outlet are arranged in the valve body, between valve body and spool, seal by bedding and padding, the sealing cover that connects valve body is arranged on the bedding and padding, a sealing inclined-plane is arranged in the bottom of spool, the sealing inclined-plane matches with right angle face in the valve body, the sealing inclined-plane is arranged in bonnet, and the bonnet inclined-plane matches with right angle face on the valve body.After spool upwards forwarded inlet/outlet fully open position and bonnet to and tightens, valve had three seals like this.
The utility model discloses a kind of unidirectional stop valve, it is high to be specially adapted to seal request, compared with the prior art supporting as chiller plant, have reasonable in design, the close surface of contact of bedding and padding compression envelope is big, effective, long service life particularly adopts multiple tracks resealing structure, reach dynamic year and leak less than 1 gram, static less than 0.5 gram.Hexagonal rotation in using on the spool, volume is not little, and is fragile and skid.
Fig. 1 is the utility model unidirectional stop valve bend connector spool from the import schematic representation of packing into;
Fig. 2 is the direct pipe valve core of the utility model unidirectional stop valve schematic representation of packing into from the adjustable side.
Below in conjunction with Fig. 1-Fig. 2 embodiment of the present utility model is elaborated.
The utility model relates to unidirectional stop valve, and a valve body 9 is arranged, valve body import 12 and outlet 13, when the adapter of import was bend connector 11, spool can be packed into by import, after the spool 8 of packing into, clog (as shown in Figure 1) with stub (tube) 10, connect bend connector by stub (tube) again.If taking over is directly to manage 23(as shown in Figure 2), spool is packed into from the adjustable side.Take over mouth before not installing and add dust plug 14, export adjunction pipe cap 16 in the union nut 15 on 13 equally.Reinforced joint 7 of system has valve inside 5 and valve cap 6 on the joint on valve body.Spool 8 and valve body 9 are by being threaded, when not working, the lower inclined plane 22 of spool is sealed in entrance point with refrigerant, after work, spool upwards moves on to sealing inclined-plane 17 and cooperates with valve body right angle face 18, and by bedding and padding 4 sealings, bedding and padding are sealed by sealing cover 2 enforce compression between spool and the valve body, add sealing gasket 3 at the two ends of bedding and padding, in order to avoid when rotary seal is covered, damage bedding and padding.The spool upper end is interior hexagonal 21 structures, and the benefit of interior hexagonal is not fragile and skids, and makes the volume-diminished of whole valve.Bonnet 1 is installed outside the adjustable side, and the sealing inclined-plane 20 in the bonnet seals mutually with valve body right angle face 19.
Claims (3)
1, resealing unidirectional stop valve, formed by valve body, spool and bonnet, import and outlet are arranged in the valve body, it is characterized in that sealing by bedding and padding (4) between valve body (9) and the spool (8), the sealing cover (2) that connects valve body is arranged on the bedding and padding, and the spool upper end is interior hexagonal (a 21) structure.
2, resealing unidirectional stop valve as claimed in claim 1 is characterized in that sealing gasket (3) is installed at the two ends of bedding and padding (4).
3, resealing unidirectional stop valve, formed by valve body, spool and bonnet, import and outlet are arranged in the valve body, it is characterized in that sealing by bedding and padding (4) between valve body (9) and the spool (8), the sealing cover (2) that connects valve body is arranged on the bedding and padding, sealing inclined-plane (17) is arranged in the bottom of spool, the sealing inclined-plane matches with right angle face (18) in the valve body, sealing inclined-plane (20) is arranged in bonnet (1), and match with right angle face (19) on the valve body bonnet inclined-plane (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92242590 CN2147401Y (en) | 1992-11-26 | 1992-11-26 | Multi-sealing one-way valve for cutting off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92242590 CN2147401Y (en) | 1992-11-26 | 1992-11-26 | Multi-sealing one-way valve for cutting off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2147401Y true CN2147401Y (en) | 1993-11-24 |
Family
ID=33782353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92242590 Expired - Fee Related CN2147401Y (en) | 1992-11-26 | 1992-11-26 | Multi-sealing one-way valve for cutting off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2147401Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927328A (en) * | 2012-11-14 | 2013-02-13 | 镇江七政新能源有限公司 | One-way vacuum valve |
| CN104180064A (en) * | 2013-05-24 | 2014-12-03 | 浙江三花股份有限公司 | Stop valve |
-
1992
- 1992-11-26 CN CN 92242590 patent/CN2147401Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927328A (en) * | 2012-11-14 | 2013-02-13 | 镇江七政新能源有限公司 | One-way vacuum valve |
| CN104180064A (en) * | 2013-05-24 | 2014-12-03 | 浙江三花股份有限公司 | Stop valve |
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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 |