CN106764013A - A kind of high vacuum Push-and-pull valve - Google Patents
A kind of high vacuum Push-and-pull valve Download PDFInfo
- Publication number
- CN106764013A CN106764013A CN201510859631.3A CN201510859631A CN106764013A CN 106764013 A CN106764013 A CN 106764013A CN 201510859631 A CN201510859631 A CN 201510859631A CN 106764013 A CN106764013 A CN 106764013A
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- loose joint
- valve body
- bolt
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
- F16K51/02—Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
A kind of high vacuum Push-and-pull valve, by handwheel (1), two only bolt (2), loose joint (3), pull valve rod (4), only nut (5) constituted with valve body (6)；It is characterized in that：Described loose joint (3) is provided with sealing ring I (7) with valve body (6) coupling part, only nut (5) is provided with sealing ring II (8) with valve body (6) coupling part, is sealed after sealing ring I (7) and sealing ring II (8) cause valve body (6) to be connected；Loose joint (3) two ends also are provided with sealing ring III (9) with only bolt (2) coupling part, by sealing ring III (9) such that the valve rod (4) that pulls positioned at loose joint (3) place is in sealing state all the time.The present invention is simple to operate easy for installation, lifts vacuumizing and exhausting efficiency, optimizes product structure, it is ensured that product meets high vacuum field application requirement.
Description
Technical field
The present invention relates to closing device under vacuum plant technical field, especially a kind of high vacuum seal state.
Background technology
For vacuum industry, vacuum extractor serves outdoor low temperature insulation container, is discharged the air in outdoor low temperature insulation container by vacuum extractor, to ensure the fluid temperature in low temperature insulation container at 130~150 DEG C.When evacuating, traditional vacuum Push-and-pull valve, cannot keep high vacuum state in using operating process, and causa essendi has：1st, there is sealing air-tightness hidden danger in structure, i.e., in the presence of multiple micro- leak sources；2nd, vacuum leak rate does not reach index request, i.e. leak rate less than 8X10-6Pam3/s；3rd, quality is undesirable, causes exhaust effect difference and efficiency is low.Based on factors above, when being vacuumized using traditional vacuum Push-and-pull valve benefit, low temperature insulation container layer vacuum is difficult to get condition of high vacuum degree, i.e., better than 0.1Pa.
The content of the invention
It is not enough for more than, object of the present invention is to provide a kind of high vacuum Push-and-pull valve, by sealing ring I and sealing ring II cause loose joint, valve body, only nut three be tightly connected, and sealing state is in by the valve rod that pulls that sealing ring III causes to be located at loose joint, can make to keep high vacuum state eventually during push-and-pull when valve rod is pulled.
The technical scheme is that be accomplished by the following way：A kind of high vacuum Push-and-pull valve, by handwheel, two only bolt, loose joint, pull valve rod, only nut and valve body are constituted；The described valve stem tip that pulls is installed with handwheel, and handwheel lower section is sequentially installed with only bolt, only loose joint, bolt and only nut；Loose joint is connected with only nut by valve body, and the two ends of loose joint are connected to only bolt；It is characterized in that：Described loose joint is provided with sealing ring I with valve body coupling part, and only nut is provided with sealing ring II with valve body coupling part, is sealed after sealing ring I causes valve body to be connected with sealing ring II；Loose joint two ends also are provided with sealing ring III with only bolted on part, and the valve rod that pulls for causing to be located at loose joint by sealing ring III is in sealing state all the time.
Described sealing ring I, sealing ring II and sealing ring III are that fluorine cushion rubber resistance to elevated temperatures is good.
Described valve body is provided with branched pipe, and valve body is made up of stainless steel.
The present invention, it is simple to operate easy for installation, vacuumizing and exhausting efficiency is lifted, optimize product structure, it is ensured that product meets high vacuum field application requirement.
Brief description of the drawings
Fig. 1 is front view of the invention.
Fig. 2 is the cut away view of Fig. 1.
In figure：Only bolt, 3 loose joints, 4 pull valve rod, 5 only nut, 6 valve bodies, 7 sealing ring I, 8 sealing ring II, 9 sealing ring III for 1 handwheel, 2.
Specific embodiment
Known by Fig. 1, Fig. 2, a kind of high vacuum Push-and-pull valve, by 1, two, handwheel only bolt 2, loose joint 3, pull valve rod 4, only nut 5 constituted with valve body 6；The described top of valve rod 4 that pulls is installed with handwheel 1, and the lower section of handwheel 1 is sequentially installed with only bolt 2, loose joint, only bolt 2 and only nut 5；Loose joint 3 is connected with only nut 5 by valve body 6, and the two ends of loose joint 3 are connected to only bolt 2；Described loose joint 3 is provided with sealing ring I 7 with the coupling part of valve body 6, and only nut 5 is provided with sealing ring II 8 with the coupling part of valve body 6, is sealed after sealing ring I 7 and sealing ring II 8 cause valve body 6 to be connected；The two ends of loose joint 3 also are provided with sealing ring III9 with the only coupling part of bolt 2, and the valve rod 4 that pulls for causing to be located at loose joint 3 by sealing ring III9 is in sealing state all the time.Sealing ring I 7, sealing ring II 8 are that fluorine cushion rubber heat resistance is good with sealing ring III9；Valve body 6 is provided with branched pipe, and valve body 6 is made up of stainless steel, is connected with high vacuum bellows by branched pipe.Only nut 5 and sealing ring II 8, when the vacuum interface with low temperature insulation container is connected, are sealed by sealing ring II 8 with vacuum interface, and can fix high vacuum Push-and-pull valve by stopping nut 5；Two are stopped bolt 2 and sealing ring III9, and main purpose is to ensure that pulling the sealing in push-and-pull operating process of valve rod 4 reaches requirement, and this structure can both keep high vacuum state, can make to pull the light push-and-pull of valve rod 4 operation again；Loose joint 3 and sealing ring I 7, main purpose are to ensure that stainless steel body 6 reaches requirement with the sealing of manual opening stem 4；It is simple to operate easy for installation, vacuumizing and exhausting efficiency is lifted, optimize product structure, it is ensured that product meets high vacuum field application requirement.
Claims (3)
1. a kind of high vacuum Push-and-pull valve, by handwheel (1), two only bolt (2), loose joint (3),
Pull valve rod (4), only nut (5) and valve body (6) composition；Described pulls valve rod (4)
Top is installed with handwheel (1), handwheel (1) lower section be sequentially installed with only bolt (2),
Loose joint, only bolt (2) and only nut (5)；Loose joint (3) is with only nut (5) by valve
Body (6) is connected, and the two ends of loose joint (3) are connected to only bolt (2)；It is characterized in that：
Described loose joint (3) is provided with sealing ring I (7) with valve body (6) coupling part, only nut (5)
Sealing ring II (8) is provided with valve body (6) coupling part, by sealing ring I (7) and sealing
Circle II (8) is sealed after causing valve body (6) connection；Loose joint (3) two ends and only bolt (2)
Coupling part also is provided with sealing ring III (9), causes to be located at loose joint (3) by sealing ring III (9)
The valve rod (4) that pulls at place is in sealing state all the time.
2. a kind of high vacuum Push-and-pull valve according to claim 1, it is characterised in that：Institute
Sealing ring I (7), the sealing ring II (8) for stating and sealing ring III (9) are fluorine cushion rubber high temperature resistant
Performance is good.
3. a kind of high vacuum Push-and-pull valve according to claim 1, it is characterised in that：Institute
The valve body (6) stated is provided with branched pipe, and valve body (6) is made up of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510859631.3A CN106764013A (en) | 2015-11-25 | 2015-11-25 | A kind of high vacuum Push-and-pull valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510859631.3A CN106764013A (en) | 2015-11-25 | 2015-11-25 | A kind of high vacuum Push-and-pull valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106764013A true CN106764013A (en) | 2017-05-31 |
Family
ID=58964895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510859631.3A Pending CN106764013A (en) | 2015-11-25 | 2015-11-25 | A kind of high vacuum Push-and-pull valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106764013A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202708101U (en) * | 2012-08-07 | 2013-01-30 | 北京和华腾真空泵压缩机有限公司 | Vacuum-pumping pull valve |
| CN202812441U (en) * | 2012-06-20 | 2013-03-20 | 卓旦春 | Valve body and valve rod sealing structure |
| JP2013122282A (en) * | 2011-12-12 | 2013-06-20 | Ebara Corp | Automatic opening/closing mechanism of vacuum container |
| CN203940016U (en) * | 2014-05-09 | 2014-11-12 | 南通龙鹰真空成套设备科技有限公司 | A kind of hand valve for sealed knot low-temperature (low temperature) vessel vacuum port |
| CN204729658U (en) * | 2015-05-28 | 2015-10-28 | 中国联合工程公司 | A kind of No leakage vacuumizes shutoff frock |
| CN204729657U (en) * | 2015-05-28 | 2015-10-28 | 中国联合工程公司 | A kind of tie-rod sealing formula vacuumizes shutoff frock |
| CN205578864U (en) * | 2015-11-25 | 2016-09-14 | 江苏华东空分设备制造有限公司 | High vacuum push -and -pull valve |
-
2015
- 2015-11-25 CN CN201510859631.3A patent/CN106764013A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013122282A (en) * | 2011-12-12 | 2013-06-20 | Ebara Corp | Automatic opening/closing mechanism of vacuum container |
| CN202812441U (en) * | 2012-06-20 | 2013-03-20 | 卓旦春 | Valve body and valve rod sealing structure |
| CN202708101U (en) * | 2012-08-07 | 2013-01-30 | 北京和华腾真空泵压缩机有限公司 | Vacuum-pumping pull valve |
| CN203940016U (en) * | 2014-05-09 | 2014-11-12 | 南通龙鹰真空成套设备科技有限公司 | A kind of hand valve for sealed knot low-temperature (low temperature) vessel vacuum port |
| CN204729658U (en) * | 2015-05-28 | 2015-10-28 | 中国联合工程公司 | A kind of No leakage vacuumizes shutoff frock |
| CN204729657U (en) * | 2015-05-28 | 2015-10-28 | 中国联合工程公司 | A kind of tie-rod sealing formula vacuumizes shutoff frock |
| CN205578864U (en) * | 2015-11-25 | 2016-09-14 | 江苏华东空分设备制造有限公司 | High vacuum push -and -pull valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |
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| WD01 | Invention patent application deemed withdrawn after publication |