CN2682256Y - Non-return plug valve - Google Patents
Non-return plug valve Download PDFInfo
- Publication number
- CN2682256Y CN2682256Y CN 200420004652 CN200420004652U CN2682256Y CN 2682256 Y CN2682256 Y CN 2682256Y CN 200420004652 CN200420004652 CN 200420004652 CN 200420004652 U CN200420004652 U CN 200420004652U CN 2682256 Y CN2682256 Y CN 2682256Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- return
- stopcock
- sphere
- spool
- 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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Abstract
The utility model relates to a non-return plug valve, and on the basis of the existing plug valve, part of the flow out channel of a valve body or the whole flow out channel is designed into a cone whose exterior is big and the inner is small. The inner of the cone section is provided with a movable solid or a hollow sphere, and the diameter of the sphere is more than the diameter of the inner end of the cone section, so that the sphere can plug the cone section. The flow out channel outside the sphere is provided with a baffle plate with a through hole which prevents the sphere sliding out. When a medium makes normal flow, the sphere leaves away from the inner end of the cone section under the push of the medium or under the action of the self gravitation, and thus, the flow out channel becomes expedite. When the refluxing occurs, the sphere moves toward the inner end of the cone section, and thus, the flow out channel can be plugged, which can prevent the medium refluxing. The utility model has the advantage of simple structure, favorable non-return effect, reliable operation and low production cost.
Description
Technical field
The utility model relates to a kind of non-return stopcock.
Background technique
The cock-type spool that existing stopcock comprises valve body and cooperates with valve body, valve body is provided with flow channel and the flow pass that is communicated with valve pocket respectively, spool is provided with through hole, be positioned at the valve pocket of valve body, with the mating face seal rotation cooperation of valve pocket, when valve is in opening state, the port of valve core through hole is communicated with corresponding flow channel and flow pass respectively, rotary spool just can change the lead to the hole site of spool, with valve closing.Because this valve does not have check function, can't stop medium back flow, for avoiding refluxing, people have proposed multiple non-return scheme, perhaps control spool and make valve closing, complicated additional device perhaps is set, the closed dielectric passage, to realize the one-way flow of medium, the prior art scheme all causes valve integrally-built complicated, not only increase cost of production, and reduced the reliability of valve.
The model utility content
For overcoming the above-mentioned defective of prior art, the utility model provides a kind of non-return stopcock, and it not only has check function, and simple in structure, and cost is low, good reliability.
The utility model realizes that the technological scheme of above-mentioned purpose is: a kind of non-return stopcock, the cock-type spool that comprises valve body and cooperate with valve body, valve body is provided with flow channel and the flow pass that is communicated with valve pocket respectively, spool is provided with through hole, be positioned at the valve pocket of valve body, mating face seal rotation with valve pocket cooperates, when valve is in opening state, the through hole port of spool is communicated with the flow channel and the flow pass of valve body respectively, have at least one section to be the little taper of outer imperial palace in the flow pass of described valve body, this conical section is built-in with a movable spheroid, the diameter of this spheroid is greater than the inner diameter of conical section, the passage in the spheroid outside is provided with a retaining that can block spheroid and pulls, and retaining is pulled and is provided with some through holes.
When normal the use, valve opening, medium flows into from flow channel, and flow pass flows out, and leaves the inner of conical section under the effect of the spheroid in the conical section under medium promotes or at self gravitation, make medium be able to circulation smoothly in flow pass, when occurring refluxing, shift to the inner of conical section under the effect of spheroid under medium promotes or, until conical section is clogged at self gravitation, medium can't be refluxed, realize the purpose of non-return thus.
The structure that plays the non-return effect in the utility model is very simple, and non-return is effective, and is reliable, and cost of production is low.
Description of drawings
Accompanying drawing is the cross-sectional view of a kind of mode of execution of the utility model.
Embodiment
Referring to accompanying drawing, the cock-type spool 2 that the non-return stopcock that the utility model provides comprises valve body 9 and cooperates with valve body, valve body is provided with flow channel 11 and the flow pass 3 that is communicated with valve pocket respectively, spool is provided with through hole 7, be positioned at the valve pocket of valve body, mating face seal rotation with valve pocket cooperates, when valve is in opening state, the through hole port of spool is communicated with (state as shown in drawings) with corresponding valve body flow channel and flow pass respectively, have one section in the flow pass 3 of described valve body at least and be the little taper of outer imperial palace, this conical section is built-in with a movable spheroid 6, the diameter of this spheroid is greater than the inner diameter of conical section, the passage in the spheroid outside is provided with a retaining that can block spheroid and pulls 4, and this retaining is pulled and is provided with some through holes 5.
Usually, the through hole 7 on the flow pass 3 on the described valve body, flow channel 11 and the spool can be the axisymmetric shape of cross section for circle.
Described spheroid 6 can be a solid sphere, also can be hollow spheres, can adopt wear-and corrosion-resistant materials such as stainless steel to make usually.
It can be the disk that is provided with some manholes that described retaining pulls 4, is entrenched in the outside of flow pass conical section outer end, and this structure is easy to manufacturing, and has good practicability.
Excessive for the tapering of avoiding the flow pass conical section, guarantee good sealing property, increase the service life, the conical section of described flow pass 3 should occupy the whole or big portion of flow pass.
Shape, the structure of other component of the valve pocket of described valve body 9, described spool 2 and valve and be coupled to each other relation and all can adopt prior art arbitrarily.
For example, in the embodiment shown in the figures, described spool 2 is cylindrical, and it is exposed at the outer top of valve body and is provided with a discoid knob 1, is used for the manual rotary valve core.
The bottom of described spool 2 is provided with a restraining groove 8, and described valve body is provided with a positioning screwn 10, and the afterbody of this positioning screwn is inserted in the described restraining groove, plays the rotary stopper effect to spool 2.
Described restraining groove 8 also can be located at the top of spool 2.
The top of described spool 2 is provided with two seal rings 13, seals between valve body and valve pocket, leaks along spool to prevent medium, and the quantity of seal ring 13 also can be one or other quantity.
The outflow port of described valve body 9 can be provided with outside thread, flows into port one 2 and can be provided with internal thread, so that realize the connection of valve with pipeline or other equipment.
Described spool 2 also can adopt taper, sphere or other arbitrary shapes.
Claims (9)
1, a kind of non-return stopcock, the cock-type spool that comprises valve body and cooperate with valve body, valve body is provided with flow channel and the flow pass that is communicated with valve pocket respectively, spool is provided with through hole, be positioned at the valve pocket of valve body, mating face seal rotation with valve pocket cooperates, when valve is in opening state, the through hole port of spool is communicated with corresponding valve body flow channel and flow pass respectively, it is characterized in that having at least one section to be the little taper of outer imperial palace in the flow pass of described valve body, this conical section is built-in with a movable spheroid, the diameter of this spheroid is greater than the inner diameter of conical section, the passage in the spheroid outside is provided with a retaining that can block spheroid and pulls, and this retaining is pulled and is provided with some through holes.
2, non-return stopcock as claimed in claim 1 is characterized in that described spheroid is solid sphere or hollow spheres.
3, non-return stopcock as claimed in claim 2 is characterized in that it is the disk that is provided with some manholes that described retaining is pulled, and is entrenched in the outside of flow pass conical section outer end.
4, non-return stopcock as claimed in claim 1 is characterized in that the conical section of described flow pass occupies the whole or big portion of flow pass.
5, non-return stopcock as claimed in claim 1 is characterized in that described spool is cylindrical, taper or sphere.
6, non-return stopcock as claimed in claim 1 is characterized in that described spool is cylindrical, and it is exposed at the outer top of valve body and is provided with a discoid knob.
7, non-return stopcock as claimed in claim 6 is characterized in that the bottom of described spool or top are provided with a restraining groove, and described valve body is provided with a positioning screwn, and the afterbody of this positioning screwn is inserted in the described restraining groove.
8, non-return stopcock as claimed in claim 1 is characterized in that described valve body top is provided with some seal rings, seals between valve body and valve pocket.
9, non-return stopcock as claimed in claim 1 is characterized in that the outflow port of described valve body is provided with outside thread, flows into port and is provided with internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420004652 CN2682256Y (en) | 2004-02-23 | 2004-02-23 | Non-return plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420004652 CN2682256Y (en) | 2004-02-23 | 2004-02-23 | Non-return plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2682256Y true CN2682256Y (en) | 2005-03-02 |
Family
ID=34605709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420004652 Expired - Fee Related CN2682256Y (en) | 2004-02-23 | 2004-02-23 | Non-return plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2682256Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363550B (en) * | 2007-08-06 | 2011-09-28 | 浙江世进水控股份有限公司 | Check valve structure |
| CN104085628A (en) * | 2014-07-15 | 2014-10-08 | 朱志强 | Hazardous chemical storage tank capable of autonomous risk avoidance |
| CN105526124A (en) * | 2016-01-25 | 2016-04-27 | 余登会 | Portable energy saving air pump |
| CN105545691A (en) * | 2016-01-25 | 2016-05-04 | 余登会 | Portable, energy-saving and rapid air inflating pump |
| CN107524826A (en) * | 2017-10-11 | 2017-12-29 | 氟络塞尔特种阀门(苏州)有限公司 | A kind of high life antispray electrical ball valve |
| CN109110841A (en) * | 2018-10-15 | 2019-01-01 | 吴联星 | A kind of water purifier being conveniently replaceable filter core |
| CN113217657A (en) * | 2021-04-15 | 2021-08-06 | 西派集团有限公司 | Ultrahigh-pressure union type plug valve |
-
2004
- 2004-02-23 CN CN 200420004652 patent/CN2682256Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363550B (en) * | 2007-08-06 | 2011-09-28 | 浙江世进水控股份有限公司 | Check valve structure |
| CN104085628A (en) * | 2014-07-15 | 2014-10-08 | 朱志强 | Hazardous chemical storage tank capable of autonomous risk avoidance |
| CN105526124A (en) * | 2016-01-25 | 2016-04-27 | 余登会 | Portable energy saving air pump |
| CN105545691A (en) * | 2016-01-25 | 2016-05-04 | 余登会 | Portable, energy-saving and rapid air inflating pump |
| CN107524826A (en) * | 2017-10-11 | 2017-12-29 | 氟络塞尔特种阀门(苏州)有限公司 | A kind of high life antispray electrical ball valve |
| CN109110841A (en) * | 2018-10-15 | 2019-01-01 | 吴联星 | A kind of water purifier being conveniently replaceable filter core |
| CN113217657A (en) * | 2021-04-15 | 2021-08-06 | 西派集团有限公司 | Ultrahigh-pressure union type plug valve |
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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: 20050302 Termination date: 20120223 |