CN2279487Y - Energy-saving noise silencing check valve - Google Patents
Energy-saving noise silencing check valve Download PDFInfo
- Publication number
- CN2279487Y CN2279487Y CN 96237170 CN96237170U CN2279487Y CN 2279487 Y CN2279487 Y CN 2279487Y CN 96237170 CN96237170 CN 96237170 CN 96237170 U CN96237170 U CN 96237170U CN 2279487 Y CN2279487 Y CN 2279487Y
- Authority
- CN
- China
- Prior art keywords
- valve
- piston
- energy
- valve seat
- flap
- 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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- Details Of Valves (AREA)
- Check Valves (AREA)
Abstract
The utility model relates to an energy-saving noise silencing check valve which is composed of a valve body, a valve clack, a valve seat, a valve rod, a piston, a spring, etc., wherein an upper and a lower bounce cylinders are arranged in the valve seat, and both ends of the valve rod are respectively provided with the piston and the valve clack. The piston can be arranged in the upper bounce cylinder, and the valve clack can be arranged in the lower bounce cylinder. A resistance force hole is arranged in the lower bounce cylinder, and the spring is arranged between the valve seat and the valve clack. The utility model has the advantages of reasonable structure, artful design and excellent noise silencing effect, and the flow passing area in the valve is the same everywhere to make the flow velocity constant. The return wall of a flow passage is in a streamline shape and has little bending, so the pressure loss is greatly reduced to achieve the aim of energy saving.
Description
The utility model relates to a kind of safety check, particularly a kind of energy-saving damping safety check.
Existing similar safety check noise elimination effect is all not ideal enough, and pressure loss is bigger, wastes energy.
The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part and provides a kind of noise elimination effect splendid, and structure is ingenious, can make the energy-saving damping safety check of the big reduction of the pressure loss.
Order of the present utility model, can reach by following measure; The utility model comprises valve body, flap, valve seat, valve rod, it is characterized in that; Also have piston, spring, valve seat is provided with cushion dashpot, following cushion dashpot, and the two ends of valve rod are equipped with piston and flap respectively, and piston can place in the cushion dashpot, and flap can place down in the cushion dashpot, is provided with aperture in the following cushion dashpot, and spring is loaded between valve seat and the flap.
Fig. 1 is a structure sectional view of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing (embodiment);
With reference to Fig. 1, the utility model is made up of valve body 1, flap 2, valve seat 3, valve rod 4, piston 5, spring 6 etc.Valve seat 3 places in the valve body 1, is provided with cushion dashpot 7 in it and reaches cushion dashpot 8 down, and the two ends of valve rod 4 are equipped with piston 5 and flap 2 respectively, piston 5 can place in the cushion dashpot 7, flap 2 can place down in the cushion dashpot 8, and spring 6 is loaded between valve seat 3 and the flap 2, is provided with aperture 9 in the following cushion dashpot 8.
Done upwards rise of time spent flap 2 when advancing the water pressure medium, medium in the following cushion dashpot 8 slowly flows out from resistance hole 9, last piston 5 covers resistance hole 9, medium in the following cushion dashpot 8 can only flow out from matching gap, reduce the movement velocity of flap 2, can not produce the metal impingement phenomenon when flap 2 is contacted with valve seat 3 centers.Approaching zero when velocity of medium, when medium was about to reflux, spring 6 pushed flap 2 earlier, and when contacting soon with sealing surface, last cushion dashpot 7 promptly works, and flap 2 horse back decelerations slowly contact two sealing surfaces, have avoided generation metal impingement phenomenon.Be placed with zero shape circle on the sealing surface, sealability is good.
The utility model has following advantage compared to existing technology: rational in infrastructure, design ingenious, Soundproof effect is splendid; And the area of passage in the valve is the same everywhere, makes flow velocity constant; Runner returns The wall streamlining, crooked few, the pressure loss is reduced greatly, reach energy-conservation purpose.
Claims (1)
1, a kind of energy-saving damping safety check, comprise valve body 1, flap 2, valve seat 3, valve rod 4, it is characterized in that: also have piston 5, spring 6, valve seat 3 is provided with cushion dashpot 7, following cushion dashpot 8, the two ends of valve rod 4 are equipped with piston 5 and flap 2 respectively, piston 5 can place in the cushion dashpot 7, flap 2 can place down in the cushion dashpot 8, is provided with aperture 9 in the following cushion dashpot 8, and spring 6 is loaded between valve seat 3 and the flap 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96237170 CN2279487Y (en) | 1996-07-09 | 1996-07-09 | Energy-saving noise silencing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96237170 CN2279487Y (en) | 1996-07-09 | 1996-07-09 | Energy-saving noise silencing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2279487Y true CN2279487Y (en) | 1998-04-22 |
Family
ID=33912821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96237170 Expired - Fee Related CN2279487Y (en) | 1996-07-09 | 1996-07-09 | Energy-saving noise silencing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2279487Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445617C (en) * | 2007-02-02 | 2008-12-24 | 曾祥炜 | Shuttle control shaft flow damp open-close device |
| EP3779254A4 (en) * | 2018-03-27 | 2021-12-29 | Kawasaki Jukogyo Kabushiki Kaisha | Check valve |
-
1996
- 1996-07-09 CN CN 96237170 patent/CN2279487Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445617C (en) * | 2007-02-02 | 2008-12-24 | 曾祥炜 | Shuttle control shaft flow damp open-close device |
| EP3779254A4 (en) * | 2018-03-27 | 2021-12-29 | Kawasaki Jukogyo Kabushiki Kaisha | Check valve |
| US11428327B2 (en) | 2018-03-27 | 2022-08-30 | Kawasaki Jukogyo Kabushiki Kaisha | 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 |