CN201875276U - Novel slow-closure device - Google Patents
Novel slow-closure device Download PDFInfo
- Publication number
- CN201875276U CN201875276U CN2010201440646U CN201020144064U CN201875276U CN 201875276 U CN201875276 U CN 201875276U CN 2010201440646 U CN2010201440646 U CN 2010201440646U CN 201020144064 U CN201020144064 U CN 201020144064U CN 201875276 U CN201875276 U CN 201875276U
- Authority
- CN
- China
- Prior art keywords
- piston
- closure device
- novel slow
- seat body
- shaped hole
- 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
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000013016 damping Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
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- Details Of Valves (AREA)
Abstract
The utility model relates to the technical field of valves, in particular to a novel slow-closure device. The novel slow-closure device is characterized in that the novel slow-closure device comprises a seat body, an axial needle-shaped hole, a compression spring, a piston and an ejector rob; the novel slow-closure device is provided with the axial needle-shaped hole. An inner chamber of the seat body is provided with the piston with the ejector rob; and the compression spring is arranged between the piston and an inner port of the needle-shaped hole. When mediums enter the seat body through the axial needle-shaped port and push the piston to move forward, the ejector rob stretches out from the inner port of an inlet section; when the slow-closure device stops running, the spring moves downward, and the piston returns; as the ejector rob is at the push-off position, the piston can not be totally closed; damping is produced in the process of extrusion of fluid in the inner chamber of the seat body from the needle-shaped hole, so as to lead an open cross section to be slowly closed and effectively limit the production of big water hammers.
Description
Technical field
The utility model relates to valve technology field, especially a kind of novel slow closing device.
Background technique
Conventional valves especially under the big situation of pressure, can produce big water hammer under the pressure medium effect, valve destroys sealing because the pressure that bears is big, thereby loses sealing effect, causes valve invalidation.
Summary of the invention
At the problems referred to above, the utility model provides a kind of novel slow closing device, described a kind of novel slow closing device, it is characterized in that, comprise: pedestal 1, axial aciculiform hole 2, pressure spring 3, piston 4, push rod 5, described a kind of novel slow closing device is to be provided with axial aciculiform hole 2, and described pedestal 1 inner chamber is provided with the piston 4 that has push rod 5, is provided with pressure spring 3 between the inner port in piston 4 and aciculiform hole 2.When medium enters in the pedestal 1 through axial aciculiform hole 2, promote piston 4 and move ahead, push rod 5 stretches out entrance 1 inner port; And when out of service, movable spring 3 resets to lower piston 4, because push rod 5 is in the release location, piston 4 can not Close All, fluid in pedestal 1 inner chamber produces damping from 2 extrusion processs of aciculiform hole, the cross section of unlatching is slowly closed, and limits the generation of big water hammer effectively.
The beneficial effects of the utility model are: 1) alleviate the burden of the load of working medium to the exit seal circle effectively, prevent the generation of water hammer; 2) obtain better sealing effect; 3) working life of prolongation product.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in the figure, described a kind of novel slow closing device pedestal 1 is provided with axial aciculiform hole 2, and described pedestal 1 inner chamber is provided with the piston 4 that has push rod 5, is provided with pressure spring 3 between the inner port in piston 4 and aciculiform hole 2.When medium enters in the pedestal 1 through axial aciculiform hole 2, promote piston 4 and move ahead, push rod 5 stretches out entrance 1 inner port; And when pump was out of service, movable spring 3 resetted to lower piston 4, because push rod 5 is in the release location, piston 4 can not Close All, fluid in pedestal 1 inner chamber produces damping from 2 extrusion processs of aciculiform hole, the cross section of unlatching is slowly closed, and limits the generation of big water hammer effectively.
Claims (1)
1. novel slow closing device, it is characterized in that comprising: pedestal, axial aciculiform hole, pressure spring, piston, push rod, described a kind of novel slow closing device is to be provided with axial aciculiform hole, described pedestal inner chamber is provided with the piston that has push rod, is provided with pressure spring between the inner port in described piston and aciculiform hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201440646U CN201875276U (en) | 2010-03-29 | 2010-03-29 | Novel slow-closure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201440646U CN201875276U (en) | 2010-03-29 | 2010-03-29 | Novel slow-closure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875276U true CN201875276U (en) | 2011-06-22 |
Family
ID=44163193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201440646U Expired - Fee Related CN201875276U (en) | 2010-03-29 | 2010-03-29 | Novel slow-closure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286968A (en) * | 2015-06-10 | 2017-01-04 | 杜景东 | Extra-high tension unit, valving and valving control method |
-
2010
- 2010-03-29 CN CN2010201440646U patent/CN201875276U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286968A (en) * | 2015-06-10 | 2017-01-04 | 杜景东 | Extra-high tension unit, valving and valving control method |
| CN106286968B (en) * | 2015-06-10 | 2019-12-20 | 杜景东 | Ultrahigh pressure equipment, valve device and valve device control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20120329 |