CN2490379Y - Anti-pollution check valve - Google Patents
Anti-pollution check valve Download PDFInfo
- Publication number
- CN2490379Y CN2490379Y CN 01244762 CN01244762U CN2490379Y CN 2490379 Y CN2490379 Y CN 2490379Y CN 01244762 CN01244762 CN 01244762 CN 01244762 U CN01244762 U CN 01244762U CN 2490379 Y CN2490379 Y CN 2490379Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- spool
- outside
- inlet seal
- 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
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- Details Of Valves (AREA)
Abstract
The utility model belongs to the valve technical field and relates to an anti-pollution check valve capable of separating two media. The anti-pollution check valve comprises a valve body and a valve core arranged in the valve body as well as an inlet sealing bolt, wherein the center of the inlet sealing bolt is provided with a through hole, the thread on outer side the inlet sealing bolt is coordinated with the inner thread at tail end of the valve body, the valve core takes the shape of a cylinder with front end closed and is fixed in the valve body through the steps on the inlet sealing bolt and inner cavity of the valve body, the side wall of the valve core is provided with a plurality of through holes as outlets, a layer of rubber sealing cover is covered outside of the valve core, the inner wall of the valve body outside the rubber sealing cover takes the shape of a conical surface. The utility model has a simple and reliable structure, convenient manufacture, good unidirectional seal, and can prevent the pollution of reverse leaking.
Description
Technical field
The utility model belongs to valve technology field, relates to a kind of antifouling one-way valve of separating two media.
Background technique
At present, employed one-way valve in the transmission system of pneumatic and other medium generally adopts tapering spool or tapering spool to add rubber ring and realizes one-way sealing.The one-way valve of this structure, its spool and valve base chamber serious wear easily lost efficacy, and owing to higher to the concentricity requirement of spool and valve seat, had increased difficulty of processing and cost simultaneously.Particularly when the one-way valve of this structure during as the breather cheek valve in the industry ash-transmission systems such as cement plant, power plant, because the one side is a gas, opposite side is an ashes, ashes falls into the junction plane place of spool and valve seat easily when spool lifts, the wearing and tearing of spool and valve seat have not only been quickened, one-way sealing was lost efficacy, and reverse leakage is serious.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the defective of existing one-way valve, provides a kind of simple and reliable for structure, easily manufactured, and one-way sealing is good, when separating two media, can prevent the antifouling one-way valve that reverse leakage pollutes.
The technical solution of the utility model is, this antifouling one-way valve comprises a valve body and is installed in valve body interior spool and inlet seal bolt, described inlet seal bolt center is a through hole, the screw-internal thread fit of its outside screw and valve body afterbody, described spool is the tubular of front end sealing, it is fixed in the valve body by the step on inlet seal bolt and the body cavity, have several through holes on the sidewall of spool as outlet, also be with one deck rubber sealing boot in its outside, the valve interior wall in the rubber sealing boot outside is the conical surface.In addition, a flow throttling current stabilization orifice plate can be installed also between inlet seal bolt and spool, play the effect of throttling current stabilization.
The utility model is simple and reliable for structure, and is not high to manufacture process requirement.In use, gas or other fluid back down rubber sealing boot under certain pressure, flow out from the outlet of spool, and when reverse fluid flow, fluid compressing rubber sealing boot make sealing tightr, has prevented the reverse leakage pollution.And mechanical wear is few in the using process, long service life.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the cross section structure schematic representation of spool.
Embodiment
As shown in the figure, the spool 2 front ends sealing of this antifouling one-way valve, it is fixed in the valve body 1 by the step on inlet seal bolt 3 and valve body 1 inner chamber, have several through holes on the sidewall of spool 2 as outlet 4, be with one deck rubber sealing boot 5 in the spool outside, the valve interior wall in the rubber sealing boot outside is the conical surface.A flow throttling current stabilization orifice plate 6 also is installed between inlet seal bolt 3 and spool 2, plays the effect of throttling current stabilization.
Claims (2)
1, a kind of antifouling one-way valve, it is characterized in that: it comprises a valve body (1) and is installed in valve body interior spool (2) and inlet seal bolt (3), described inlet seal bolt (3) center is a through hole, the screw-internal thread fit of its outside screw and valve body afterbody, described spool (2) is the tubular of front end sealing, it is fixed in the valve body by the step on inlet seal bolt (3) and valve body (1) inner chamber, have several through holes on the sidewall of spool (2) as outlet (4), also be with one deck rubber sealing boot (5) in its outside, the valve interior wall in the rubber sealing boot outside is the conical surface.
2, antifouling one-way valve according to claim 1 is characterized in that: between inlet seal bolt (3) and spool (2) a flow throttling current stabilization orifice plate (6) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01244762 CN2490379Y (en) | 2001-07-11 | 2001-07-11 | Anti-pollution check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01244762 CN2490379Y (en) | 2001-07-11 | 2001-07-11 | Anti-pollution check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2490379Y true CN2490379Y (en) | 2002-05-08 |
Family
ID=33656132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01244762 Expired - Fee Related CN2490379Y (en) | 2001-07-11 | 2001-07-11 | Anti-pollution check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2490379Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966770A (en) * | 2012-11-22 | 2013-03-13 | 裕东（中山）机械工程有限公司 | Elastic rubber type check valve for multi-dust environment |
| CN103206551A (en) * | 2013-03-14 | 2013-07-17 | 北京工业大学 | Valve element for automatic backlash compensation |
| CN103216630A (en) * | 2013-01-05 | 2013-07-24 | 北京工业大学 | Valve sleeve with automatic clearance compensation function |
| CN108017899A (en) * | 2017-12-11 | 2018-05-11 | 安徽银龙泵阀股份有限公司 | A kind of spool and its manufacture craft with inner wall self-cleaning function |
-
2001
- 2001-07-11 CN CN 01244762 patent/CN2490379Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966770A (en) * | 2012-11-22 | 2013-03-13 | 裕东（中山）机械工程有限公司 | Elastic rubber type check valve for multi-dust environment |
| CN103216630A (en) * | 2013-01-05 | 2013-07-24 | 北京工业大学 | Valve sleeve with automatic clearance compensation function |
| CN103216630B (en) * | 2013-01-05 | 2015-10-28 | 北京工业大学 | The valve pocket that a kind of automatic backlash compensates |
| CN103206551A (en) * | 2013-03-14 | 2013-07-17 | 北京工业大学 | Valve element for automatic backlash compensation |
| CN108017899A (en) * | 2017-12-11 | 2018-05-11 | 安徽银龙泵阀股份有限公司 | A kind of spool and its manufacture craft with inner wall self-cleaning function |
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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 |