CN202708101U - Vacuum-pumping pull valve - Google Patents
Vacuum-pumping pull valve Download PDFInfo
- Publication number
- CN202708101U CN202708101U CN 201220386807 CN201220386807U CN202708101U CN 202708101 U CN202708101 U CN 202708101U CN 201220386807 CN201220386807 CN 201220386807 CN 201220386807 U CN201220386807 U CN 201220386807U CN 202708101 U CN202708101 U CN 202708101U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- finding time
- vacuum
- vacuumizing
- 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 discloses a vacuum-pumping pull valve which comprises a valve body, a valve stem, a seal, a suction pipe and a vacuum-pumping valve body. The suction pipe is communicated with a valve body cavity, the vacuum-pumping valve body is fixed on the lower end of the valve body in sealed mode, the valve stem is inserted into the valve body cavity from the upper end of the valve body, the valve stem is connected with the upper end of the valve body in sealed mode, and the seal is fixed on the lower end of the valve stem. The vacuum-pumping valve body can be in an opening state or a closing state, when the vacuum-pumping valve body is in the closing state, the valve stem drives the seal to move into the vacuum-pumping valve body, and the seal is connected with the vacuum-pumping valve body in sealed mode; and when the vacuum-pumping valve body is in the opening state, the valve stem drives the seal to break away from the vacuum-pumping valve body. The vacuum-pumping pull valve can ensure that no leakage occurs in sealing and separation processes, namely after vacuum pumping is finished, and when the valve stem is pushed downwards, no air can be carried to break the vacuum degree of an interlayer.
Description
Technical field
The utility model relates to a kind of vacuum pumping technology, relates in particular to a kind of vacuumizing and draws valve.
Background technique
Vacuumizing and drawing valve is the special-purpose connecting tooling of vacuum degassing system and low temperature bottle clip layer vacuum orifice.Be used for to connect off gas system and low temperature cylinder, the vacuum seal of guaranteeing simultaneously under the state of bleed vacuum not, to carry out low temperature bottle clip layer from.
Existing vacuumizing in the process of drawing valve sealed-off under vacuum state can be brought a part of atmosphere into to interlayer, destroys the degree of vacuum of interlayer.
The model utility content
The utility model provides a kind of novel vacuumizing to draw valve for the above-mentioned existing shortcoming that vacuumizes the degree of vacuum of drawing valve destructible interlayer, guarantees in the sealed-off process not bleed vacuum.
The technical solution of the utility model is: a kind of vacuumizing drawn valve, comprise valve body, valve rod, shutoff, exhaust tube and the valve body of finding time, exhaust tube is communicated with body cavity, the valve seal of finding time is fixed on the lower end of valve body, valve rod inserts body cavity from the valve body upper end, valve rod and valve body upper end are tightly connected, the valve rod lower end is fixed with shutoff, the described valve body of finding time has the opening and closing state, the valve body of finding time is in closed condition, valve rod drives shutoff and moves to the valve body of finding time, and shutoff is tightly connected with the valve body of finding time; The valve body of finding time is in open mode, and valve rod drives shutoff and leaves the valve body of finding time.When needs vacuumize from exhaust tube, pull out valve rod, namely valve rod moves up, and makes shutoff leave the valve body of finding time, and the valve body of finding time is in open mode.After vacuumizing end, push away under the valve rod, the position that makes the shutoff of valve rod end get back to the valve body of finding time is tightly connected with the valve body of finding time, and can guarantee in the process that pushes away under valve rod without leaking.
Described valve rod and valve body upper end are tightly connected by Sealing and lifting nut, and Sealing is enclosed within on the valve rod, lifting nut press seal spare.Lifting nut plays the effect of press seal spare and stem guiding.
The upper end of described valve rod is provided with handle, and handle easy-to-operat valve rod moves up and down valve is endoceliac.
The described valve body of finding time is fixed on valve body lower end by locking nut.
Described shutoff arranged outside has Sealing.The seal can make shutoff tightr with being tightly connected of valve body of finding time.
Described finding time arranges Sealing between valve body and the valve body lower end.Sealing is fixed the better sealing of finding time between valve body and the valve body.
Described valve rod and valve body upper end are tightly connected by a plurality of Sealings and lifting nut, and lifting nut compresses a plurality of Sealings, and a plurality of Sealings are enclosed within on the valve rod successively.
Described shutoff arranged outside has a plurality of Sealings.
The Sealing in the described shutoff outside is O shape circle.
Cover has hold-down ring on the described valve body of finding time, and described hold-down ring is arranged between locking nut and the valve body.
Of the present utility model vacuumizing drawn valve, can guarantee not leak in the sealed-off process, namely after vacuumizing end, pushes through in the journey under the valve rod and can not carry atmosphere secretly, destroys the degree of vacuum of interlayer.
Description of drawings
Fig. 1 is the structural representation that draws valve that vacuumizes of the present utility model.
Embodiment
Below in conjunction with accompanying drawing refined copper liquid cooling system of the present utility model is elaborated.
As shown in Figure 1, of the present utility model vacuumizing drawn valve, comprise valve body 1, valve rod 2, shutoff 3, exhaust tube 4 and the valve body 5 of finding time, exhaust tube 4 is communicated with valve body 1 inner chamber 6, valve body 5 sealing of finding time is fixed on the lower end of valve body 1, valve rod 2 inserts valve body 1 inner chamber 6 from valve body 1 upper end, valve rod 2 is tightly connected with valve body 1 upper end, valve rod 2 lower ends are fixed with shutoff 3, the described valve body 5 of finding time has the opening and closing state, the valve body 5 of finding time is in closed condition, and valve rod 2 drives shutoff 3 and moves to the valve body 5 of finding time, and shutoff 3 is tightly connected with the valve body 5 of finding time; The valve body 5 of finding time is in open mode, and valve rod 2 drives shutoff 3 and leaves the valve body 5 of finding time.
Valve rod 2 is tightly connected lifting nut 7 press seal spares with valve body 1 upper end by a plurality of Sealings and lifting nut 7.As seen from Figure 1, Sealing can adopt back-up ring 8 and O shape to enclose 9 alternative arrangements to form multi-stage sealed.
Valve rod 2 is connected by the screw thread mode with shutoff 3.
The valve body 5 of finding time is fixed on valve body 1 lower end inner chamber by locking nut 10 sealing, and the valve body 5 of finding time is outside equipped with Sealing, and Sealing can be O shape circle 9.For sealing more, can also be at the valve body 5 cover hold-down rings 11 of finding time, hold-down ring 11 is between locking nut 10 and valve body 1.
Shutoff 3 arranged outside have a plurality of Sealings.The seal is O shape circle 9.
The upper end of valve rod 2 is provided with handle 12, handle 12 easy-to-operat valve rods moving up and down in valve body 1 chamber.
Above-mentioned Sealing can be fluorine rubber seal element or teflon seal.
Claims (9)
1. one kind vacuumizes and draws valve, it is characterized in that, comprise valve body, valve rod, shutoff, exhaust tube and the valve body of finding time, exhaust tube is communicated with body cavity, the valve seal of finding time is fixed on the lower end of valve body, valve rod inserts body cavity from the valve body upper end, and valve rod and valve body upper end are tightly connected, and the valve rod lower end is fixed with shutoff, the described valve body of finding time has the opening and closing state, the valve body of finding time is in closed condition, and valve rod drives shutoff and moves to the valve body of finding time, and shutoff is tightly connected with the valve body of finding time; The valve body of finding time is in open mode, and valve rod drives shutoff and leaves the valve body of finding time.
2. according to claim 1 vacuumizing drawn valve, it is characterized in that, described valve rod and valve body upper end are tightly connected by Sealing and lifting nut, and Sealing is enclosed within on the valve rod, lifting nut press seal spare.
3. according to claim 1 vacuumizing drawn valve, it is characterized in that, described valve rod and valve body upper end are tightly connected by a plurality of Sealings and lifting nut, and lifting nut compresses a plurality of Sealings, and a plurality of Sealings are enclosed within on the valve rod successively.
4. according to claim 1 vacuumizing drawn valve, it is characterized in that, the described valve body of finding time is fixed on valve body lower end by locking nut.
5. according to claim 4 vacuumizing drawn valve, it is characterized in that, described finding time arranges Sealing between valve body and the valve body lower end.
6. according to claim 5 vacuumizing drawn valve, it is characterized in that, cover has hold-down ring on the described valve body of finding time, and described hold-down ring is arranged between locking nut and the valve body.
7. according to claim 1 vacuumizing drawn valve, it is characterized in that, described shutoff arranged outside has Sealing.
8. according to claim 1 vacuumizing drawn valve, it is characterized in that, described shutoff arranged outside has a plurality of Sealings.
9. according to claim 1 vacuumizing drawn valve, it is characterized in that, the upper end of described valve rod is provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386807 CN202708101U (en) | 2012-08-07 | 2012-08-07 | Vacuum-pumping pull valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386807 CN202708101U (en) | 2012-08-07 | 2012-08-07 | Vacuum-pumping pull valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708101U true CN202708101U (en) | 2013-01-30 |
Family
ID=47588407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220386807 Expired - Fee Related CN202708101U (en) | 2012-08-07 | 2012-08-07 | Vacuum-pumping pull valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708101U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133703A (en) * | 2013-02-21 | 2013-06-05 | 中国科学院广州地球化学研究所 | Air pumping valve capable of preventing dust blockage |
| CN103728651A (en) * | 2013-12-12 | 2014-04-16 | 西北核技术研究所 | High-purity germanium detector vacuum maintaining system with thermal purification function |
| CN105240587A (en) * | 2015-11-13 | 2016-01-13 | 天津智源工贸有限公司 | Vacuumized connecting valve |
| CN106764013A (en) * | 2015-11-25 | 2017-05-31 | 江苏华东空分设备制造有限公司 | A kind of high vacuum Push-and-pull valve |
| CN108019527A (en) * | 2017-12-07 | 2018-05-11 | 北京市北分仪器技术有限责任公司 | A kind of manual vacuum takes out valve in advance |
| CN108825825A (en) * | 2018-06-29 | 2018-11-16 | 苏州超磁半导体科技有限公司 | A kind of mounting tool of vacuum seal disk |
| CN112857533A (en) * | 2021-01-21 | 2021-05-28 | 北京斯克维思仪表有限公司 | Liquid level meter and drawing device |
| CN114151556A (en) * | 2021-11-29 | 2022-03-08 | 上海齐耀动力技术有限公司 | Mechanical vacuum drawing valve |
-
2012
- 2012-08-07 CN CN 201220386807 patent/CN202708101U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133703A (en) * | 2013-02-21 | 2013-06-05 | 中国科学院广州地球化学研究所 | Air pumping valve capable of preventing dust blockage |
| CN103728651A (en) * | 2013-12-12 | 2014-04-16 | 西北核技术研究所 | High-purity germanium detector vacuum maintaining system with thermal purification function |
| CN105240587A (en) * | 2015-11-13 | 2016-01-13 | 天津智源工贸有限公司 | Vacuumized connecting valve |
| CN106764013A (en) * | 2015-11-25 | 2017-05-31 | 江苏华东空分设备制造有限公司 | A kind of high vacuum Push-and-pull valve |
| CN108019527A (en) * | 2017-12-07 | 2018-05-11 | 北京市北分仪器技术有限责任公司 | A kind of manual vacuum takes out valve in advance |
| CN108019527B (en) * | 2017-12-07 | 2023-07-18 | 北京市北分仪器技术有限责任公司 | Manual vacuum pre-pumping valve |
| CN108825825A (en) * | 2018-06-29 | 2018-11-16 | 苏州超磁半导体科技有限公司 | A kind of mounting tool of vacuum seal disk |
| CN112857533A (en) * | 2021-01-21 | 2021-05-28 | 北京斯克维思仪表有限公司 | Liquid level meter and drawing device |
| CN114151556A (en) * | 2021-11-29 | 2022-03-08 | 上海齐耀动力技术有限公司 | Mechanical vacuum drawing valve |
| CN114151556B (en) * | 2021-11-29 | 2024-05-10 | 上海齐耀动力技术有限公司 | Mechanical vacuum pull 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: 20130130 Termination date: 20200807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |