CN201010204Y - Quantitative valve - Google Patents
Quantitative valve Download PDFInfo
- Publication number
- CN201010204Y CN201010204Y CNU2007200349357U CN200720034935U CN201010204Y CN 201010204 Y CN201010204 Y CN 201010204Y CN U2007200349357 U CNU2007200349357 U CN U2007200349357U CN 200720034935 U CN200720034935 U CN 200720034935U CN 201010204 Y CN201010204 Y CN 201010204Y
- Authority
- CN
- China
- Prior art keywords
- valve
- gas storage
- valve rod
- rubber seal
- metallic gasket
- 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 - Lifetime
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Abstract
A quantitative valve in the utility model relates to a valve, in particular to a connecting quantitative valve which is suitable for the aerosol tank, including a valve body, a valve rod, a fixed sleeve, a rubber sealing ring, a gas storage ring and a spring. The left side of the rubber sealing ring is tightly and fixedly arranged with a metallic gasket. Compared with the prior art, the quantitative valve in the utility model has characters that in virtue of the structure of tightly and fixedly arranging a metallic gasket at the left side of the rubber sealing ring, in the effect of clamping of the metallic gasket and the fixed sleeve, the rubber sealing ring can not deform; besides, the contact part of the gas storage ring and the valve rod utilizes a wedge-shaped structure; the rigidity and stability of the gas storage ring is greatly improved, which makes the deflection controlled in a precision range, thereby greatly advancing work precision and reliability of the quantitative valve.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of connection proportional valve that is applicable to that the aerosol jar uses.
Background technology
Figure 1 shows that the connection proportional valve structure cutaway view that is used at present on the aerosol jar.This proportional valve is made up of valve body 1, valve rod 2, fixed cover 3, rubber seal 4, the L type gas storage circle 5 that wall thickness such as is, spring 6 etc., when proportional valve is in off condition (valve rod is in the least significant), the correspondence position of valve rod and gas storage circle is gapped, be in and be interference fit between the valve rod of gas storage circle middle part and the gas storage circle, the contact portion of valve rod and rubber seal also is an interference fit.The principle of work of proportional valve is: before the work after aerosol jar and proportional valve connect, the interior gas of aerosol jar bottom valve body aperture and the space between valve rod and the gas storage circle enter the gas storage circle; During work, valve rod advances left under the effect of operational forces, and the position that valve rod is in the middle of the gas storage circle contacts with the gas storage circle earlier and sealing with it, when continuing to advance left again, aperture 7 in the valve rod passes rubber seal and enters the gas storage circle, and the gas in the gas storage circle discharges by this aperture; When the external force removal of valve rod, under the effect of spring force, valve rod returns to the initial position; Valve rod such side-to-side movement again and again, the gas in the gas storage circle quantitatively discharges again and again, reaches the effect of quantitative output; Therefore, in use, valve rod needs to do repeatedly the advance and retreat action, because valve rod and rubber seal are interference fit, friction drag is bigger, when valve rod during to left movement, rubber seal also can directly influence the operating accuracy and the reliability of proportional valve along with to left movement; And motion repeatedly about during proportional valve work being, the agine mechaism of rubber elastomeric material in addition under power fatigue effect repeatedly, the hardness of rubber seal will descend, flexibility is bigger, when the hardness of rubber dropped to a certain degree, rubber seal will be moved simultaneously along with valve rod, caused aperture can't pass rubber seal, make gas to discharge, so that can't work.In addition, the bottom of gas storage circle moves right in the time of also might be with the valve rod return, causes the gas in the gas tank can't enter the gas storage circle, causes and can't work.
Summary of the invention
The purpose of this utility model is to provide a kind of proportional valve, rubber seal in this proportional valve and gas storage circle are structurally improved, make it in the course of the work not can or less generation distortion, thereby ensure that the gas storage space between rubber seal and the gas storage circle is relatively stable, improve the operating accuracy and the reliability of proportional valve.
The technological means that realizes the foregoing invention purpose is:
A kind of proportional valve comprises valve body, valve rod, fixed cover, rubber seal, gas storage circle, spring, closely fixes a metallic gasket at the left surface of described rubber seal.
Left surface in described rubber seal embeds a metallic gasket.
Described gas storage circle and the contacted partial cross section of valve rod are wedge shape.
Described gas storage circle and the contacted partial cross section of valve rod right side are trapezoidal.
Proportional valve of the present utility model compared with prior art, its advantage is: owing to the structure of closely fixing a metallic gasket at the rubber seal left surface, under the clamping action of metallic gasket and fixed cover, rubber seal can not deform, the contacted part of gas storage circle and valve rod adopts wedge structure in addition, and it is trapezoidal that the right side is, and the rigidity and the stability of gas storage circle improve greatly, its deflection is controlled within the accuracy rating, thereby the operating accuracy of proportional valve and reliability are improved greatly.
Description of drawings
Fig. 1 is a proportional valve structure cutaway view of the prior art;
The proportional valve structure cutaway view that Fig. 2 provides for the utility model.
Concrete embodiment
Fig. 2 is the structure cutaway view of the utility model embodiment.Proportional valve is made up of valve body 1, valve rod 2, fixed cover 3, rubber seal 4, L type gas storage circle 5, spring 6 etc., the right side of rubber seal closely contacts with fixed cover, tight fixing metal pad 8 on the left surface, preferably embed this metallic gasket at its left surface, so just make metallic gasket and rubber seal constitute one, metallic gasket is a wire loop sheet, this wire loop sheet and valve rod are a gap, not hinder the motion of valve rod, like this, under the clamping action of metallic gasket and fixed cover, rubber seal will can not deform in the motion of valve rod; The contacted partial cross section of gas storage circle and valve rod is wedge shape, be preferably in its right side and be trapezoidal, that is, and the right side part that the gas storage circle contacts with valve rod exceed exceed to root abundant, the phenomenon that the bottom that can prevent the gas storage circle like this moves right during with the valve rod return.
Claims (4)
1. a proportional valve comprises valve body, valve rod, fixed cover, rubber seal, gas storage circle, spring, it is characterized in that: closely fix a metallic gasket at described rubber seal left surface.
2. proportional valve according to claim 1 is characterized in that: the left surface in described rubber seal embeds a metallic gasket.
3. the quantitative Yan according to claim 1 is characterized in that: described gas storage circle and the contacted partial cross section of valve rod are wedge shape.
4. proportional valve according to claim 3 is characterized in that: described gas storage circle and the contacted partial cross section of valve rod right side are trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200349357U CN201010204Y (en) | 2007-03-01 | 2007-03-01 | Quantitative valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200349357U CN201010204Y (en) | 2007-03-01 | 2007-03-01 | Quantitative valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201010204Y true CN201010204Y (en) | 2008-01-23 |
Family
ID=39045142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200349357U Expired - Lifetime CN201010204Y (en) | 2007-03-01 | 2007-03-01 | Quantitative valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201010204Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171747A (en) * | 2013-04-07 | 2013-06-26 | 李存扣 | Lifesaving throwing device |
| WO2014071733A1 (en) * | 2012-11-08 | 2014-05-15 | Xu Licai | Metered-dose spray valve |
| WO2016154787A1 (en) * | 2015-03-27 | 2016-10-06 | 南京腾亚精工科技有限公司 | Quantitative spray valve |
-
2007
- 2007-03-01 CN CNU2007200349357U patent/CN201010204Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014071733A1 (en) * | 2012-11-08 | 2014-05-15 | Xu Licai | Metered-dose spray valve |
| CN103171747A (en) * | 2013-04-07 | 2013-06-26 | 李存扣 | Lifesaving throwing device |
| WO2016154787A1 (en) * | 2015-03-27 | 2016-10-06 | 南京腾亚精工科技有限公司 | Quantitative spray valve |
| CN106794934A (en) * | 2015-03-27 | 2017-05-31 | 南京腾亚精工科技有限公司 | Quantitative spray valve |
| CN106794934B (en) * | 2015-03-27 | 2019-11-01 | 南京腾亚精工科技有限公司 | Quantitative spray valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING TENGYA PRECISION INDUSTRIAL TECHNOLOGY CO. Free format text: FORMER OWNER: YITIAN (NANJING) METAL PRODUCTS CO., LTD. Effective date: 20120120 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 211103 NANJING, JIANGSU PROVINCE TO: 211100 NANJING, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120120 Address after: 211100 Dongshan Road, Dongshan District, Jiangning District, Jiangsu City, Nanjing Province, No. 129 Lin Lin Road Patentee after: Nanjing Toua Hardware & Tools Co.,Ltd. Address before: Jiangning District of Nanjing City, Jiangsu province 211103 Shang Fang Zhen Ni Tang Industrial Park Patentee before: Yitian (Nanjing) Metal Products Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080123 |