CN201137728Y - Air pumping valve - Google Patents
Air pumping valve Download PDFInfo
- Publication number
- CN201137728Y CN201137728Y CNU2007203106380U CN200720310638U CN201137728Y CN 201137728 Y CN201137728 Y CN 201137728Y CN U2007203106380 U CNU2007203106380 U CN U2007203106380U CN 200720310638 U CN200720310638 U CN 200720310638U CN 201137728 Y CN201137728 Y CN 201137728Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- hole
- valve rod
- bonnet
- 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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- Lift Valve (AREA)
Abstract
The utility model relates to an air extraction valve, which comprises a valve body, a valve rod and a valve bonnet, wherein the valve rod is inserted in the valve body, the valve bonnet is sleeved on the lower portion of the valve body, the valve body is a cylindrical tube, fixed rings are arranged on the middle-upper part outside the valve body, a ring-shaped groove is arranged on the lower end of the valve body, a through hole is arranged on the upper end of the valve body, a conical structure is arranged on the through hole, the valve rod is arranged in the through hole, the conical structure is arranged on the lower portion of the valve rod, a square through hole is arranged on the lower portion of the valve rod, a counterbore is arranged on the upper end of the valve rod, the bottom of the counterbore is in parallel with the lower portion of the square through hole, a screw thread is arranged on the upper portion of the valve rod, the valve bonnet on the lower portion of the valve body is a cylindrical shell, and a plurality of small holes are arranged on the bottom end of the valve bonnet. The beneficial effects of the air extraction valve are that the structure is simple, the manufacture is convenient, the cost is lowered to a great extent, the structure and the design are rational, and each component is closely matched, which not only guarantees the functionality of one way air extraction and prevents the air leaking phenomena from happening, but also has very convenient use and long service life.
Description
Technical field
The utility model relates to a kind of evacuating valve.
Background technique
The most complex structure of one-way cock in the market, production process is many, not only needs to drop into great amount of manpower, also can cause the waste of physical resources, thereby has improved the cost that production is made; Now a lot of one-way cocks adopt the stifled or valve pad of valves etc. to realize the unidirectional ventilatory function of valve, and this mode is along with the growth of service time and the increase of access times, all can influence the sealing effect of the stifled or valve pad of valve, make the one-way cock phenomenon that leaks air.
The model utility content
The purpose of this utility model provides a kind of evacuating valve, to overcome existing product cost height, short deficiency of life-span.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of evacuating valve, comprise valve body, valve rod, valve bonnet, the nested valve rod of valve inner, valve body lower portion is with valve bonnet, and described valve body is the cylindricality body, the outer middle and upper part of valve body is provided with retaining ring, valve body lower end is provided with annular recess, and the valve body upper end is provided with through hole, and the through hole bottom is a cone structure, valve rod inserts in the through hole, and valve rod and through hole are interference fit; Described valve rod top is provided with screw thread, and stem lower portion is that cone structure matches with the through hole bottom, and stem lower portion is provided with square through hole, and the valve rod upper end is provided with counterbore, and the counterbore bottom is equal with the square through hole bottom; The valve bonnet of described valve body lower portion is a cylindrical shell, and the valve bonnet bottom is provided with some apertures.
The beneficial effect of evacuating valve described in the utility model is: simple in structure, easy to make, reduce cost to a great extent; Reasonable in design, each parts cooperates tight, what not only guaranteed to bleed is functional, the generation of prevention ventilation phenomenon, and use very easy, long service life.
Description of drawings
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the structural representation of evacuating valve described in the utility model;
Fig. 2 is the sectional view of evacuating valve described in the utility model.
Among the figure:
1, valve body; 1-1, retaining ring; 1-2, through hole; 1-3, annular recess; 2, valve rod; 2-1, counterbore; 2-2, square through hole; 2-3, screw thread; 3, valve bonnet; 3-1, aperture.
Embodiment
Shown in Fig. 1-2, the described evacuating valve of the utility model embodiment comprises valve body 1, valve rod 2, valve bonnet 3, valve body 1 nested inside valve rod 2, valve body 1 bottom is with valve bonnet 3, and described valve body 1 is the cylindricality body, and valve body 1 outer middle and upper part is provided with retaining ring 1-1, retaining ring 1-1 can be fixed on valve on the link, valve body 1 lower end is provided with annular recess 1-3, and valve body 1 upper end is provided with through hole 1-2, and through hole 1-2 bottom is a cone structure, valve rod 2 inserts in the through hole 1-2, and valve rod 2 is an interference fit with through hole 1-2; Described valve rod 2 tops are provided with screw thread 2-3, the cone structure of valve rod 2 bottoms for matching with through hole 1-2 bottom, and valve rod 2 bottoms are provided with square through hole 2-2, and valve rod 2 upper ends are provided with counterbore 2-1, and counterbore 2-1 bottom is equal with square through hole 2-2 bottom; The valve bonnet 3 of described valve body 1 bottom is a cylindrical shell, and valve bonnet 3 bottoms are provided with some aperture 3-1.
The described evacuating valve of the utility model embodiment, when operation, the screw thread 2-3 end of valve rod 2 is connected with air-extractor, simultaneously valve rod 2 is outwards spurred, make the cone structure of valve rod 2 bottoms separate with the cone structure of valve body 1 bottom, this moment, gas entered through hole 1-2 from the aperture 3-1 of valve bonnet 3 bottoms, and enter counterbore 2-1 by the square through hole 2-2 of valve rod 2, finally enter air-extractor, wait to bleed finish after, valve rod 2 inwardly is pressed into, make the cone structure of valve rod 2 bottoms and the cone structure of valve body 1 bottom closely cooperate, then gas can't enter into through hole 1-2 from square through hole 2-2, thereby realizes unidirectional ventilation.
Claims (1)
1, a kind of evacuating valve, comprise valve body (1), valve rod (2) and valve bonnet (3), valve body (1) nested inside valve rod (2), valve body (1) bottom is with valve bonnet (3), it is characterized in that: valve body (1) is the cylindricality body, and the outer middle and upper part of valve body (1) is provided with retaining ring (1-1), valve body (1) lower end is provided with annular recess (1-3), valve body (1) upper end is provided with through hole (1-2), and through hole (1-2) bottom is a cone structure, and valve rod (2) inserts in the through hole (1-2); Described valve rod (2) bottom is a cone structure, and valve rod (2) bottom is provided with square through hole (2-2), and valve rod (2) upper end is provided with counterbore (2-1), and counterbore (2-1) bottom is equal with square through hole (2-2) bottom, and valve rod (2) top is provided with screw thread (2-3); The valve bonnet (3) of described valve body (1) bottom is a cylindrical shell, and valve bonnet (3) bottom is provided with some apertures (3-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203106380U CN201137728Y (en) | 2007-12-14 | 2007-12-14 | Air pumping valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203106380U CN201137728Y (en) | 2007-12-14 | 2007-12-14 | Air pumping valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201137728Y true CN201137728Y (en) | 2008-10-22 |
Family
ID=40038415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203106380U Expired - Fee Related CN201137728Y (en) | 2007-12-14 | 2007-12-14 | Air pumping valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201137728Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256201A (en) * | 2013-04-09 | 2013-08-21 | 北京康斯特仪表科技股份有限公司 | Coaxially homodromous gas pressurization mechanism and gas pressurization method |
| CN103453186A (en) * | 2013-08-09 | 2013-12-18 | 长兴金润大正机械有限公司 | Check valve |
| CN103550863A (en) * | 2013-11-21 | 2014-02-05 | 周建大 | Wound surface therapeutic apparatus |
| CN108799536A (en) * | 2018-08-16 | 2018-11-13 | 中国船舶重工集团公司第七0四研究所 | Main inlet throttle-stop valve stem structure |
| CN110508214A (en) * | 2019-09-03 | 2019-11-29 | 杭州怡莱珂科技有限公司 | A kind of split type extraction valve, reaction kettle and its method equipped with the valve |
-
2007
- 2007-12-14 CN CNU2007203106380U patent/CN201137728Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256201A (en) * | 2013-04-09 | 2013-08-21 | 北京康斯特仪表科技股份有限公司 | Coaxially homodromous gas pressurization mechanism and gas pressurization method |
| CN103256201B (en) * | 2013-04-09 | 2016-04-27 | 北京康斯特仪表科技股份有限公司 | Coaxial motive liquid booster body and gas boosting method in the same way |
| CN103453186A (en) * | 2013-08-09 | 2013-12-18 | 长兴金润大正机械有限公司 | Check valve |
| CN103550863A (en) * | 2013-11-21 | 2014-02-05 | 周建大 | Wound surface therapeutic apparatus |
| CN108799536A (en) * | 2018-08-16 | 2018-11-13 | 中国船舶重工集团公司第七0四研究所 | Main inlet throttle-stop valve stem structure |
| CN108799536B (en) * | 2018-08-16 | 2024-06-04 | 中国船舶重工集团公司第七0四研究所 | Main valve stem structure |
| CN110508214A (en) * | 2019-09-03 | 2019-11-29 | 杭州怡莱珂科技有限公司 | A kind of split type extraction valve, reaction kettle and its method equipped with the valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20141214 |
|
| EXPY | Termination of patent right or utility model |