CN101191563A - Negative one-way valve for liquid transmission pipeline - Google Patents
Negative one-way valve for liquid transmission pipeline Download PDFInfo
- Publication number
- CN101191563A CN101191563A CNA2006101456515A CN200610145651A CN101191563A CN 101191563 A CN101191563 A CN 101191563A CN A2006101456515 A CNA2006101456515 A CN A2006101456515A CN 200610145651 A CN200610145651 A CN 200610145651A CN 101191563 A CN101191563 A CN 101191563A
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- piston
- way valve
- negative
- housing
- capping
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Abstract
The invention discloses a negative pressure one-way valve for fluid conveying pipeline, which can be widely applicable to fluid conveying pipeline. The valve comprises a casing, a close cover, and a piston and a back stop washer arranged in the casing, wherein the casing is provided with a hollow cavity where the piston can move up and down, the back stop washer capable of being closed by the piston is arranged between the casing and the close cover, passages are respectively arranged on the casing and the close cover, the passage on the casing is communicated with the hollow cavity, and the passage on the close cover goes through the cover body. The integrated negative pressure one-way valve is arranged on a fluid conveying pipeline. When the valve receives a positive pressure, the piston is pushed up to close the open port of the back stop washer through the positive pressure and a buoyancy force, thereby realizing the effect of cutting off and blocking out gas/fluid; when the piston receives a vacuum negative pressure suction force, the piston descends to the bottom of the hollow cavity because of the vacuum negative pressure suction force and self gravity, thereby enabling the gas/fluid to lead in and pass. The one-way valve exclusively for fluid conveying pipeline has sensitive reaction, simple structure and excellent performance.
Description
Technical field
The present invention relates to the special negative pressure one-way valve of fuel-efficient/water system that delivery lines such as a kind of fuel pipe that can be widely used in transport vehicles such as gasoline, diesel oil and water, chemical liquid use.
Background technique
Generally, present one-way valve structures is to utilize set steel ball and spring in the valve body, reaches stressed the moving of steel ball and the breakdown one-way valve by the generation of a direction positive pressure, the passing through of air feed, liquid.When positive pressure does not exist, utilize moving of steel ball and by compression spring is upheld, make the steel ball playback produce the unidirectional check effect of closed check valve.
Because the design of this kind one-way valve structures also is not suitable for the control that negative pressure designs, therefore up to this point, still do not have desirable and special-purpose negative one-way valve, because now a lot of liquid transmission pipeline, special-purpose negative one-way valve has become the technical problem that needs to be resolved hurrily in the industry technology utilization.
Summary of the invention
In view of this, main purpose of the present invention is to provide the special negative pressure one-way valve of fuel-efficient/water that liquid transmission pipelines such as the fuel pipe that can be widely used in transport vehicles such as gasoline, diesel oil and water, chemistry use.
For achieving the above object, technological scheme of the present invention is achieved in that a kind of negative one-way valve of liquid transmission pipeline, comprise housing, capping and be located at piston and check packing ring in the housing wherein, is provided with a hollow chamber and puts into and can move up and down for piston in the housing, folder is established a check packing ring that can be subjected to the piston closure between housing and capping, and be provided with passage in housing and capping, the passage conducting of housing is in hollow chamber, and the passage of capping is then through lid; Be assembled on the liquid transmission pipeline by the negative one-way valve that is combined into one, when the piston of negative one-way valve is subjected to malleation, utilize external positive pressure and buoyancy, piston will be pushed to and seal the port of check packing ring, reach to close blocking-up gas/liquid body fully and import the effect of passing through; When piston was subjected to negative pressure of vacuum suction, by this negative pressure of vacuum suction and gravity own, to dropping to the hollow chamber bottom, the importing of air feed/liquid was passed through in addition.
As further improvement, above-mentioned capping can have a joint, and this joint outside is provided with screw thread can be connected to other pipeline or gas/liquid body filter.
As further improvement, set confession piston is inserted hollow chamber moving up and down inwall and can be provided with several guiding raised lines in the above-mentioned housing, also is provided with several projections in addition at the bottom of the hollow cavity chamber.
As further improvement, above-mentioned piston base can be an inner concave or plane.
The technique effect that the present invention has is as follows:
Being provided with a hollow chamber in the housing puts into and can move up and down for piston, folder is established a check packing ring that can be subjected to the piston closure between housing and capping, and be provided with passage in housing and capping, the passage conducting of its middle shell is in hollow chamber, and the passage of capping is then through lid.When piston is subjected to malleation, utilize external positive pressure and buoyancy, piston will be pushed to and seal the port of check packing ring, reach to close blocking-up gas/liquid body fully and import the effect of passing through; In addition, when piston was subjected to negative pressure of vacuum suction, because this negative pressure of vacuum suction and gravity own, to dropping to the hollow chamber bottom, the importing of air feed/liquid was passed through.Therefore constitute a reaction be active in one's movements, simple in structure, the negative one-way valve of the liquid transmission pipeline special use of function admirable.
Description of drawings
Fig. 1 is the preceding schematic representation of embodiments of the invention combination;
Fig. 2 is inventive embodiment combination back schematic representation;
Fig. 3 be Fig. 2 along 3-3 place sectional view;
Fig. 4 be Fig. 3 along 4-4 place sectional view;
Fig. 5 closes schematic representation for piston of the present invention;
Fig. 6 is a utilization example of the present invention.
Number in the figure is described as follows:
The 1-housing 10-passage 11-111-of hollow chamber guiding raised line 112-projection
12-joint 121-screw thread
2-capping 20-passage 21-joint 211-screw thread
3-piston 4-check packing ring 41-port
5-pipeline or Venturi tube 6-pipeline or gas/liquid body filter
Embodiment
Negative one-way valve of the present invention can be widely used in the negative one-way valve of fuel-efficient/water that liquid transmission pipelines such as the fuel pipe of transport vehicles such as gasoline, diesel oil and water, chemistry use.
As Fig. 1, shown in Figure 3, the valve body structure of present embodiment comprises a housing 1, a capping 2 and is located at piston 3 and check packing ring 4 in the housing 1, be provided with a hollow chamber 11 in its middle shell 1, the piston 3 that can be inner concave or plane for the bottom is put into and can be moved up and down, between housing 1 and capping 2 folder establish one can be by the check packing ring 4 of piston 3 closures, check packing ring 4 central authorities are provided with logical 41, and be provided with path 10, passage 20 in housing 1 and capping 2, wherein, the path 10 conducting of housing 1 is in hollow chamber 11, and the passage 20 of capping 2 is then through lid 2.
As shown in Figure 1, 2, housing 1 has a joint 12, these joint 12 outsides are provided with on the branch line that screw thread 121 can be connected to other pipeline or Venturi tube 5 (referring to Fig. 6), and capping 2 also has a joint 21, and these joint 21 outsides are provided with screw thread 211 can be connected to pipeline or gas/liquid body filter 6.
As shown in Figure 4, set confession piston 3 is put into hollow chamber moving up and down 11 inwalls and is provided with several guiding raised lines 111 in the housing 1, because guiding raised line 111 can move the piston 3 that moves up and down stably in the environment of low-frictional force, at the bottom of hollow chamber 11 chambeies, also be provided with several projections 112 in addition, utilize 112 circulations for liquid of each projection.
As Fig. 5, shown in Figure 6, illustrate the effect of present embodiment:
When piston 3 is subjected to malleation, utilize external positive pressure and buoyancy, piston 3 will be pushed to and seal the logical 41 of check packing ring 4, reach to close blocking-up gas/liquid body fully and import the effect of passing through; In addition, when piston 3 was subjected to negative pressure of vacuum suction, because this negative pressure of vacuum suction and gravity own, to dropping to hollow chamber 11 bottoms, the importing of air feed/liquid was passed through.Therefore constitute a reaction be active in one's movements, simple in structure, the negative one-way valve of the liquid transmission pipeline special use of function admirable.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (4)
1. the negative one-way valve of a liquid transmission pipeline comprises housing, capping and be located at piston and check packing ring in the housing, wherein:
Be provided with a hollow chamber in the housing and put into and can move up and down for piston, folder is established a check packing ring that can be subjected to the piston closure between housing and capping, and is provided with passage in housing and capping, and the passage conducting of housing is in hollow chamber, and the passage of capping is then through lid;
Be assembled on the liquid transmission pipeline by the negative one-way valve that is combined into one, when the piston of negative one-way valve is subjected to malleation, utilize external positive pressure and buoyancy, piston will be pushed to and seal the port of check packing ring, reach to close blocking-up gas/liquid body fully and import the effect of passing through; When piston was subjected to negative pressure of vacuum suction, by this negative pressure of vacuum suction and gravity own, to dropping to the hollow chamber bottom, the importing of air feed/liquid was passed through in addition.
2. the negative one-way valve of liquid transmission pipeline as claimed in claim 1, wherein, described capping has a joint, and this joint outside is provided with screw thread can be connected to other pipeline or gas/liquid body filter.
3. the negative one-way valve of liquid transmission pipeline as claimed in claim 1 wherein, is established in the described housing and is inserted hollow chamber moving up and down inwall for piston and be provided with several guiding raised lines, also is provided with several projections in addition at the bottom of the hollow cavity chamber.
4. the negative one-way valve of liquid transmission pipeline as claimed in claim 1, wherein, described piston base can be an inner concave or plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101456515A CN101191563A (en) | 2006-11-23 | 2006-11-23 | Negative one-way valve for liquid transmission pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101456515A CN101191563A (en) | 2006-11-23 | 2006-11-23 | Negative one-way valve for liquid transmission pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101191563A true CN101191563A (en) | 2008-06-04 |
Family
ID=39486716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101456515A Pending CN101191563A (en) | 2006-11-23 | 2006-11-23 | Negative one-way valve for liquid transmission pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101191563A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367891A (en) * | 2011-09-21 | 2012-03-07 | 杭州祥生砂光机制造有限公司 | Special air valve for negative pressure convey platform of deburring machine and control method thereof |
| CN109024239A (en) * | 2018-07-13 | 2018-12-18 | 重庆工程职业技术学院 | A kind of bridge anti-corrosion waterproof air breather |
| CN112013587A (en) * | 2019-05-28 | 2020-12-01 | 青岛海尔电冰箱有限公司 | Ice making assembly and refrigerator with same |
| CN114670479A (en) * | 2022-05-31 | 2022-06-28 | 合肥合锻智能制造股份有限公司 | High-pressure quick long-stroke hydraulic machine |
-
2006
- 2006-11-23 CN CNA2006101456515A patent/CN101191563A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367891A (en) * | 2011-09-21 | 2012-03-07 | 杭州祥生砂光机制造有限公司 | Special air valve for negative pressure convey platform of deburring machine and control method thereof |
| CN102367891B (en) * | 2011-09-21 | 2016-07-06 | 杭州祥生砂光机制造有限公司 | Air valve special for deburring machine negative pressure conveying platform and control method |
| CN109024239A (en) * | 2018-07-13 | 2018-12-18 | 重庆工程职业技术学院 | A kind of bridge anti-corrosion waterproof air breather |
| CN112013587A (en) * | 2019-05-28 | 2020-12-01 | 青岛海尔电冰箱有限公司 | Ice making assembly and refrigerator with same |
| CN112013587B (en) * | 2019-05-28 | 2022-04-29 | 青岛海尔电冰箱有限公司 | Ice making assembly and refrigerator with same |
| CN114670479A (en) * | 2022-05-31 | 2022-06-28 | 合肥合锻智能制造股份有限公司 | High-pressure quick long-stroke hydraulic machine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |