CN2246738Y - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN2246738Y CN2246738Y CN 95210271 CN95210271U CN2246738Y CN 2246738 Y CN2246738 Y CN 2246738Y CN 95210271 CN95210271 CN 95210271 CN 95210271 U CN95210271 U CN 95210271U CN 2246738 Y CN2246738 Y CN 2246738Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- valve body
- utility
- model
- 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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- Check Valves (AREA)
Abstract
The utility model relates to a check valve, comprising a valve body, a flange, a seal pad, etc. A spring seat is fixed in the valve body, and a valve rod is fixed on the spring seat. A valve clack and a spring are sheathed on the valve rod, and the working face of the valve clack is in a split stream cone shape. The valve rod is a screw rod, and a spare cap is screwed on the valve rod. The inner cavity of the valve body is designed as streamline form. The utility model has the advantages of simple structure, convenient installation, little raw material consumption, small flow resistance, quickly opening and closing, etc.
Description
The utility model relates to a kind of safety check.
Existing safety check mostly is rotary-open type, unreasonable structure, and necessary water safety dress during use, and also two ends all need be furnished with flange, have increased valve body length, and weight is big, and switching speed is slow.
The purpose of this utility model is intended to overcome the deficiency of prior art and provides a kind of simple and reasonable, and cost is low, the Wafer Check Valves of technological performance.
The utility model comprises valve body 9, flange 1,11, sealing gasket 2,10, at valve body 9 internal fixation spring seat 4 is arranged, and valve rod 7 is fixed on the spring seat 4, and flap 8 and spring 6 are sleeved on valve rod 7 soil.
The working surface of the utility model flap 8 is the shunting taper.
Valve rod 7 of the present utility model can be designed as screw rod, is equipped with cap 12, spring seat cushion 13 spinnings on valve rod.
The inner chamber of the utility model valve body 9 is designed to streamlined.
The utlity model has characteristics such as simple in structure, easy for installation, that raw materials consumption is few, and flow resistance is little, switch is rapid, using scope is wide.
Accompanying drawing is the utility model structural representation.
Below in conjunction with accompanying drawing the utility model is further described:
As shown in the figure, the utility model comprises valve body 9, flange 1,11, sealing gasket 2,10, and spring seat 4 is by on three screw 3 fixed valve bodies 9, and valve rod 7 is welded on the spring seat 4, and spring 6 is sleeved on the valve rod 7, and the front end and back end is stuck on spring seat 4 and the flap 8.Flap 8 is inserted on the valve rod 7.Valve rod 7 is the screw rod of band screw socket, is equipped with cap 12, spring seat cushion 13 spinnings on valve rod 7, can be used for adjusting the back pressure closing pressure, and the minimum adjustable pressure rank of cracking pressure is 0.01.The inner chamber of the utility model valve body 9 is streamlined vortex cavity, and flap 8 is opened flap for straight-through type, and its working surface is the shunting taper, makes medium become circulation to pass through, and flow velocity is even, stable, and flow resistance is low.The utility model adopts can't blue structure, clamps with pipeline flange during use and installs, and can arbitrarily angledly install.5 is baling line among the figure, can remove after the installation.The utility model has been simplified Element Design, and processibility is improved, and is convenient to produce in enormous quantities, particularly is suitable for the Mechanized Processing of sealing surface precision lapping process.The utility model also has compact structure, easy for installation, advantages such as maintenance is easy, volume is little, in light weight, life-span length.The utility model material of main part is cylinder iron optional, carbon steel, stainless steel, and seal face materials can be selected stainless steel, bulk material, copper, hard alloy etc. for use, and its Applicable media is water, steam, oil product, nitrose etc.
Claims (5)
1, a kind of Wafer Check Valves, comprise valve body (9), flange (1), (11), sealing gasket (2), (10), it is characterized in that valve body (9) internal fixation has spring seat (4), valve rod (7) is fixed on the spring seat (4), and flap (8) and spring (6) are sleeved on the valve rod (7).
2, safety check according to claim 1 is characterized in that the working surface of flap (8) is the shunting taper.
3, safety check according to claim 1 and 2 is characterized in that valve rod (7) is a screw rod, is equipped with cap (12), spring seat cushion (13) spinning on valve rod (7).
4, safety check according to claim 1 and 2 is characterized in that valve body (9) inner chamber is streamlined.
5, safety check according to claim 3 is characterized in that valve body (9) inner chamber is streamlined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95210271 CN2246738Y (en) | 1995-05-03 | 1995-05-03 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95210271 CN2246738Y (en) | 1995-05-03 | 1995-05-03 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2246738Y true CN2246738Y (en) | 1997-02-05 |
Family
ID=33861042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95210271 Expired - Fee Related CN2246738Y (en) | 1995-05-03 | 1995-05-03 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2246738Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956848A (en) * | 2010-09-15 | 2011-01-26 | 安徽铜陵科力阀门有限责任公司 | Check valve |
-
1995
- 1995-05-03 CN CN 95210271 patent/CN2246738Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956848A (en) * | 2010-09-15 | 2011-01-26 | 安徽铜陵科力阀门有限责任公司 | Check 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 |