CN2384069Y - Silencing slow-closing check valve - Google Patents
Silencing slow-closing check valve Download PDFInfo
- Publication number
- CN2384069Y CN2384069Y CN 99224626 CN99224626U CN2384069Y CN 2384069 Y CN2384069 Y CN 2384069Y CN 99224626 CN99224626 CN 99224626 CN 99224626 U CN99224626 U CN 99224626U CN 2384069 Y CN2384069 Y CN 2384069Y
- Authority
- CN
- China
- Prior art keywords
- valve
- slow
- valve body
- piston
- slow close
- 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 silencing slow-closing check valve. The utility model has the structure that a valve body is composed of an upper valve body and a lower valve body; a slow-closing cylinder body which is composed of a slow-closing cylinder cap and a slow-closing sleeve is fixed in the valve body; a piston rod of a piston in the slow-closing cylinder body is provided with a return spring; a valve clack is arranged on the piston rod; a valve clack shaft (piston rod) is perpendicular to the sealing surface of the valve body; the circumference of the valve clack is conically matched with the sealing surface of the valve body; the valve clack is synchronously moved with a slow-closing mechanism which is composed of a sealing ring, the piston, an air release valve, the slow-closing cylinder cap, an adjusting valve, the return spring and the slow-closing cylinder sleeve. The utility model has the advantages of small volume, light weight, reliable performance and convenient adjustment.
Description
The utility model relates in a kind of being applicable to small-borely, the pumping plant of plumbing, fire-fighting HVAC system is installed, be specially adapted to the slowly closed silencing check valve of devices such as tall building, water tower.
Existing slowly closed silencing check valve is because the sealing surface of flap and valve body is a plane sealing, and flap axle and valve body sealing surface are in parallel position, and Slow Close cylinder body and flap are separately placed type, promptly respectively be integral framework independently, therefore it is big to exist volume on, and poor sealing performance is regulated shortcomings such as inconvenience.
The purpose of this utility model is, overcomes the deficiency that slowly closed silencing check valve exists in the prior art, and it is little, in light weight that volume is produced in design, and reliable performance is debugged a kind of easily slowly closed silencing check valve.
For achieving the above object, the utility model is improved existing slowly closed silencing check valve, and its specific practice is: the following valve body center that in the profile that is made of upper and lower valve body is cylindric valve body will be fixed by the Slow Close cylinder body that Slow Close cylinder cap and Slow Close cylinder sleeve constitute by supporting frame; On the piston rod of Slow Close cylinder body inner carrier, be provided with a return spring; Flap is fixed on the piston rod that stretches out the Slow Close cylinder cap, sealing surface in the axle of flap (being the piston rod of piston) and the valve body is vertical, the circumference of flap is that cone cooperates with the sealing surface of valve body, and flap is synchronized with the movement with the Slow Close mechanism that is made of seal ring, piston, bleed valve, Slow Close cylinder cap, modulating valve, return spring, Slow Close cylinder sleeve.
Slowly closed silencing check valve of the present utility model has following characteristics compared with the prior art:
1, because the sealing surface of flap axle and valve body is in vertical position, what reach flap has adopted cone to cooperate with valve body on every side, its good sealing effect.
2, flap and Slow Close mechanism move simultaneously, do not exist water supply and sewage mouth and relief opening to stop up problem, and be so Slow Close is effective, easy to adjust.
3, this valve body is long-pending little, and the original slowly closed silencing check valve of weight ratio is light 30%, has therefore saved raw material, has reduced cost.
Accompanying drawing is the structural representation of the utility model slowly closed silencing check valve.
For structure and principle to slowly closed silencing check valve of the present utility model have further understanding, details are as follows in conjunction with embodiment of the present utility model:
Embodiment, a kind of slowly closed silencing check valve
With reference to accompanying drawing, the structure of slowly closed silencing check valve of the present utility model is, constituting profile by upper valve body (1), following valve body (3) is in the valve body cylindraceous, will be fixed on down the center of valve body (3) by Slow Close cylinder cap (7) and Slow Close cylinder sleeve (10) the Slow Close cylinder body that is constituted by supporting frame.On the piston rod of the piston in the Slow Close cylinder body (5), be with a return spring (9).Flap (2) is fixed on the piston rod that stretches out the outer piston (5) of Slow Close cylinder cap (7), sealing surface in the axle of flap (2) (being the piston rod of piston (5)) and the valve body is vertical, the circumference of flap (2) is that cone cooperates with the sealing surface of valve body, between flap (2) and valve body, Slow Close cylinder cap (7) and Slow Close cylinder sleeve (10), all be provided with seal ring (4), the bleed valve (6) that is provided with on following valve body (3), modulating valve (8) all communicate with upper and lower chamber in the Slow Close cylinder body.
The working principle of this slowly closed silencing check valve is, during valve working, water is along water (flow) direction (i.e. the direction of arrow among the figure) water flowing, flap (2) is boosted, boosted in the process at flap (2), current are under the effect of pressure, pass through pipeline, modulating valve (8) enters the cavity of resorption of Slow Close cylinder sleeve (10), piston (5) and flap (2) is risen synchronously, when piston (5) rises, air in Slow Close cylinder sleeve (10) epicoele is discharged by bleed valve (6), when piston (5) rises to and Slow Close cylinder cap (7) when contacting, be exactly the maximum position that flap (2) is opened, also be the maximum position of water flow.
When stopping to supply water, the elastic force of the impact force of backwater and return spring (9) promotes flap (2) downwards in flap (2) the tube road, and piston (5) is back to down the water of Slow Close cylinder sleeve (10) cavity of resorption the cavity of resorption of valve body (3) by modulating valve (8) and row of conduits simultaneously.Current were unimpeded when the one open-one close of flap (2) was opened, and when closing, water does not flow backwards, and does not leak, and has promptly finished the working procedure of this valve.
Claims (3)
1, a kind of slowly closed silencing check valve, it includes upper valve body (1), flap (2), valve body (3), seal ring (4), piston (5), bleed valve (6), Slow Close cylinder cap (7), modulating valve (8), Slow Close cylinder sleeve (10) down, it is characterized in that it also includes the piston (5) that is provided with in the Slow Close cylinder body that is made of Slow Close cylinder cap (7) and Slow Close cylinder sleeve (10) upper cover of piston rod once a spring (9) formed.
2, a kind of slowly closed silencing check valve according to claim 1, it is characterized in that flap (2) is fixed on the piston rod of piston (5), the axle of flap (2) (being the piston rod of piston (5)) is vertical with the sealing surface of valve body, the circumference of flap (2) is that cone cooperates with the sealing surface of valve body, and flap (2) is synchronized with the movement with the Slow Close mechanism that is made of seal ring (4), piston (5), bleed valve (6), Slow Close cylinder cap (7), modulating valve (8), return spring (9), Slow Close cylinder sleeve (10).
3, a kind of slowly closed silencing check valve according to claim 1 is characterized in that the valve body profile that is made of upper valve body (1) and following valve body (3) is cylindric, and the Slow Close cylinder body is located at down the central position of valve body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99224626 CN2384069Y (en) | 1999-07-28 | 1999-07-28 | Silencing slow-closing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99224626 CN2384069Y (en) | 1999-07-28 | 1999-07-28 | Silencing slow-closing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2384069Y true CN2384069Y (en) | 2000-06-21 |
Family
ID=34014637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99224626 Expired - Fee Related CN2384069Y (en) | 1999-07-28 | 1999-07-28 | Silencing slow-closing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2384069Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455586A (en) * | 2014-12-10 | 2015-03-25 | 四川固特阀门制造有限公司 | Check valve for online adjustment of opening-closing speed |
| CN106195363A (en) * | 2016-08-31 | 2016-12-07 | 浙江新旭阀业有限公司 | A kind of band quiet soft-sealing check valve of exhaust apparatus formula |
-
1999
- 1999-07-28 CN CN 99224626 patent/CN2384069Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455586A (en) * | 2014-12-10 | 2015-03-25 | 四川固特阀门制造有限公司 | Check valve for online adjustment of opening-closing speed |
| CN106195363A (en) * | 2016-08-31 | 2016-12-07 | 浙江新旭阀业有限公司 | A kind of band quiet soft-sealing check valve of exhaust apparatus formula |
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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 |