CN202451848U - High-vacuum micro-metering valve - Google Patents
High-vacuum micro-metering valve Download PDFInfo
- Publication number
- CN202451848U CN202451848U CN2012200338809U CN201220033880U CN202451848U CN 202451848 U CN202451848 U CN 202451848U CN 2012200338809 U CN2012200338809 U CN 2012200338809U CN 201220033880 U CN201220033880 U CN 201220033880U CN 202451848 U CN202451848 U CN 202451848U
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- China
- Prior art keywords
- valve
- micro
- metering valve
- metering
- high vacuum
- 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 valve, in particular to a high-vacuum micro-metering valve which aims at being good in manufacturability, convenient to control and reliable in micro-metering performance. The high-vacuum micro-metering valve comprises a valve body, a spool rod and a connection air tube and is characterized in that the spool rod is in the shape of a reversed circular truncated cone. By adopting the structure of the spool rod in the shape of a reversed circular truncated cone, the micro-metering effect of the traditional needle type micro-metering valve can be achieved, strength of a spool is enhanced, service life of the micro-metering valve is prolonged, and reliability of the micro-metering valve is increased.
Description
Technical field
The utility model relates to a kind of valve, especially a kind of vacuum reset valve.
Background technique
The high vacuum reset valve is to be used in vacuum system, inflating, and can accurately regulate charge flow rate, with the degree of vacuum in control and the regulating system.
With reference to Fig. 2, high vacuum reset valve of the prior art is claimed needle type valve again, and its spool partly is a taper pin, regulates the gap length in taper pin and hole by screw drive, changes valve seat conductance value.It is through inflation in vacuum system and can accurately regulate charge flow rate, with the degree of vacuum in control and the regulating system.
Because its spool is the aciculiform structure partly, on technology, the defective of difficult processing is arranged; Long, the not strong defective of fine setting reliability of easy-rupturing, fragile, life-span is in use arranged.
The model utility content
The purpose of the utility model is: to above-mentioned defective of the prior art, a kind of good manufacturability is provided, controls high vacuum reset valve convenient, the fine setting reliable performance.
The described high vacuum reset valve of the utility model comprises valve body, valve core rod and connects tracheae that said valve core rod is cylindrical, and it is one domatic that the lower end of said valve core rod is provided with.
Described valve core rod, its domatic gradient are 10 to 15 degree.The inwall of said valve body is provided with groove, is provided with axle sleeve in the said groove, and said axle sleeve is provided with and the said ventilating hole that is connected tracheae UNICOM.
Said axle sleeve also is provided with seal ring outward.
The beneficial effect that the utility model produced is: adopt columniform valve core rod structure, and be provided with domaticly, both possessed reliable fine setting effect, strengthened the intensity of spool again, increased the working life of reset valve.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is a high vacuum reset valve (needle type valve) in the existing technology.
Embodiment
As shown in Figure 1, the utility model is a kind of high vacuum reset valve, comprises valve body 1, valve core rod 2, connects tracheae 3 and base 4.Wherein, valve core rod 2 is located in the valve body 1, and both cooperate through screw.
The inwall of valve body 1 is provided with groove, is provided with axle sleeve 11 in it, and the outer seal rings 13 that also are provided with of axle sleeve 11 are to guarantee the sealing effect of 2 of itself and valve core rods.On axle sleeve 11, be provided with and the ventilating hole 12 that is connected tracheae 3 UNICOMs.Base 4 is provided with through hole 41; Valve core rod 2 is one domatic for cylindrical and bottom are provided with, and it is 10 to 15 degree that this domatic the best is implemented gradient, and valve body 1 is connected through screw-thread fit with base 4; When work; Through both screw drive, the size in slit between modulating valve core bar 2 and base 4 through holes 41, thus change valve seat conductance value.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can not depart from the spirit of the utility model or surmount the defined scope of appended claims.
Claims (4)
1. high vacuum reset valve comprises valve body (1), valve core rod (2) and connects tracheae (3), it is characterized in that: said valve core rod (2) is for cylindrical, and it is one domatic that its underpart is provided with.
2. high vacuum reset valve according to claim 1 is characterized in that: described valve core rod (2), its domatic gradient does
10 to 15 degree
3. high vacuum reset valve according to claim 1 is characterized in that: the inwall of said valve body (1), be provided with groove, and be provided with axle sleeve (11) in the said groove, described axle sleeve is provided with and the said ventilating hole (12) that is connected tracheae (3) UNICOM.
4. high vacuum reset valve according to claim 1 is characterized in that: the outer seal ring (13) that is provided with of said axle sleeve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200338809U CN202451848U (en) | 2012-02-03 | 2012-02-03 | High-vacuum micro-metering valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200338809U CN202451848U (en) | 2012-02-03 | 2012-02-03 | High-vacuum micro-metering valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451848U true CN202451848U (en) | 2012-09-26 |
Family
ID=46867714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200338809U Expired - Fee Related CN202451848U (en) | 2012-02-03 | 2012-02-03 | High-vacuum micro-metering valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613181A (en) * | 2014-11-28 | 2015-05-13 | 北京卫星制造厂 | Vacuum stop valve under zero gravity |
-
2012
- 2012-02-03 CN CN2012200338809U patent/CN202451848U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613181A (en) * | 2014-11-28 | 2015-05-13 | 北京卫星制造厂 | Vacuum stop valve under zero gravity |
| CN104613181B (en) * | 2014-11-28 | 2017-11-07 | 北京卫星制造厂 | A kind of vaccum stop valve under zero-g |
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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: 20120926 Termination date: 20180203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |