CN205089998U - Empty sylphon seal self -operated pressure control valve of fidelity - Google Patents
Empty sylphon seal self -operated pressure control valve of fidelity Download PDFInfo
- Publication number
- CN205089998U CN205089998U CN201520882855.1U CN201520882855U CN205089998U CN 205089998 U CN205089998 U CN 205089998U CN 201520882855 U CN201520882855 U CN 201520882855U CN 205089998 U CN205089998 U CN 205089998U
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- China
- Prior art keywords
- spool
- empty
- valve
- pressure regulator
- membrane cover
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- Expired - Fee Related
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Abstract
The utility model discloses an empty sylphon seal self -operated pressure control valve of fidelity, which comprises the following components: a valve body, the threaded connection disk seat is passed through to the valve body lower part, connect the case on the disk seat, the case outside is equipped with the valve gap, the valve gap passes through threaded connection pressure adjustment dish, be equipped with the stroke pad with the case junction in the valve gap, valve gap upper portion is equipped with the packing box, the case is equipped with the spring holder in gland upper portion position, be fixed with the pretension spring between spring holder and the pressure adjustment dish, case upper end ejector tie rod, the push rod welds with last bellows part lower extreme, threaded connection is carried out with the tray member in the push rod upper end, linking bridge passes through bolt and nut and connects membrane lid down, linking bridge will go up the upper end pretension of bellows part and seal through the gasket with lower membrane lid, the membrane covered on the bolt and nut connection was passed through at membrane lid both ends down. Compared with the prior art, the utility model discloses having reliable sealing performance, can guaranteeing the vacuum in the real empty can, the work efficiency height is and the simple operation.
Description
Technical field
The utility model relates to control valve equipment technical field, is specifically related to the empty sylphon seal self-contained pressure regulator of a kind of fidelity.
Background technique
In recent years, domestic valve industry develop rapidly, the product structure type of each valve producer emerges in an endless stream, self-contained pressure regulator, because without the need to external energy (power supply or source of the gas), utilize by tune medium self as power source, introduce actuating mechanism controls valve element position, change circulation area, change pressure reduction before and after valve, thus make upstream pressure control to be stabilized in setting value (control valve rear profile) in setting value (before control valve type) or downstream pressure, but domestic existing direct-operated regulator is also short of to some extent at vaccum working condition, especially the operating mode under vacuum tank maintenance certain vacuum degree, there will be action insensitive, degree of vacuum is not high, the problems such as the inefficiency of pump, comprehensive usability is not good.
model utility content
The purpose of this utility model is to provide one to have reliable sealability, can ensure the degree of vacuum in vacuum tank, the empty sylphon seal self-contained pressure regulator of the high and fidelity of simple operation of working efficiency.
For achieving the above object, the utility model provides following technological scheme:
The empty sylphon seal self-contained pressure regulator of a kind of fidelity, comprise valve body, valve body lower portion is threaded connection valve seat, valve seat connects spool, spool outside is provided with valve gap, spool bottom is provided with lower bellows components, valve body both upper ends thereof connects gland respectively by bolt and nut, gland both sides connect connection bracket by column, valve gap is threaded connection pressure adjustment disk, in valve gap and spool joint is provided with stroke pad, valve gap top is provided with stuffing box, spool is provided with spring seat at Gland upper position, preloading spring is fixed with between spring seat and pressure adjustment disk, spool upper end connects push rod, push rod welds with upper bellows components lower end, push rod upper end is threaded with tray member, connection bracket connects lower membrane cover by bolt and nut, the upper end pretension of upper bellows components is sealed by pad by connection bracket and lower membrane cover, lower membrane cover two ends connect upper membrane cover by bolt and nut.
As the further improvement of above-mentioned technology, be provided with pad between described valve body and valve seat and seal.
As the further improvement of above-mentioned technology, described spool is provided with guide sleeve below lower bellows components.
As the further improvement of above-mentioned technology, pretension is carried out and sealing by pad in the lower end of lower bellows components and valve gap by described valve body and gland.
As the further improvement of above-mentioned technology, pre-stressed joint is carried out by the screw thread on nut and spool in described lower bellows components upper end.
As the further improvement of above-mentioned technology, described lower bellows components upper end forms sealing by the pretension inclined-plane on spool.
As the further improvement of above-mentioned technology, described stuffing box top is provided with Gland, is filled with filler in stuffing box.
As the further improvement of above-mentioned technology, described spool end is provided with needle roller thrust bearing at spring seat upper position.
As the further improvement of above-mentioned technology, sealed by diaphragm between described lower membrane cover and upper membrane cover.
Compared with prior art, the beneficial effects of the utility model are: valve adopts the design of stream open form, there is splendid sealing, push rod place in the middle part of lower membrane cover is sealed by lower bellows components and upper bellows components, spool is provided with sealing surface, sealing surface adopts soft seal, the degree of vacuum of vacuum tank can be ensured, there is when producing great degree of vacuum sealability very reliably, zero leakage object can be realized, improve working efficiency, ensure that valve seals reliably everywhere, substantially increase the comprehensive usability of valve, correspondingly reduce user cost again.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic enlarged-scale view of the utility model in upper bellows components position.
Fig. 3 is the schematic enlarged-scale view of the utility model at spool medium position.
In figure: membrane cover, 20-tray member, 21-diaphragm, the upper membrane cover of 22-under bellows components, 6-gland, 7-valve gap, 8-pressure adjustment disk, 9-stroke pad, 10-spring, 11-filler, 12-Gland, 13-spring seat, 14-needle roller thrust bearing, 15-push rod, 16-column, 17-connection bracket, the upper bellows components of 18-, 19-under 1-valve body, 2-valve seat, 3-valve hole part, 4-guide sleeve parts, 5-.
Embodiment
Be described in more detail below in conjunction with the technological scheme of embodiment to this patent.
The empty sylphon seal self-contained pressure regulator of a kind of fidelity, comprise valve body 1, valve body 1 bottom is threaded connection valve seat 2, be provided with pad between valve body 1 and valve seat 2 to seal, valve seat 2 connects spool 3, spool 3 outside is provided with valve gap 7, spool 3 bottom is provided with lower bellows components 5, spool 3 is provided with guide sleeve 4 below lower bellows components 5, valve body 1 both upper ends thereof connects gland 6 respectively by bolt and nut, gland 6 both sides connect connection bracket 17 by column 16, valve body 1 and gland 6 by pad by guide sleeve 4, the lower end of lower bellows components 5 and valve gap 7 carry out pretension and sealing, pre-stressed joint is carried out by the screw thread on nut and spool 3 in lower bellows components 5 upper end, lower bellows components 5 upper end forms sealing by the pretension inclined-plane on spool 3, valve gap 7 is threaded connection pressure adjustment disk 8, in valve gap 7 and spool 3 joint is provided with stroke pad 9, valve gap 7 top is provided with stuffing box, stuffing box top is provided with Gland 12, filler 11 is filled with in stuffing box, filler 11 plays seal action, spool 3 is provided with spring seat 13 at Gland 12 upper position, preloading spring 10 is fixed with between spring seat 13 and pressure adjustment disk 8, by the pretightening force regulating pressure adjustment disk 8 to adjust spring 10, spool 3 end is provided with needle roller thrust bearing 14 at spring seat 13 upper position, spool 3 upper end connects push rod 15, push rod 15 welds with upper bellows components 18 lower end, push rod 15 upper end is threaded with tray member 20, connection bracket 17 connects lower membrane cover 19 by bolt and nut, the upper end pretension of upper bellows components 18 is sealed by pad by connection bracket 17 and lower membrane cover 19, lower membrane cover 19 two ends connect upper membrane cover 22 by bolt and nut, sealed by diaphragm 21 between lower membrane cover 19 and upper membrane cover 22.
During utility model works, by in the lower membrane cover 19 on vacuum tank cut-in pressure modulating valve top, rotary pressure adjustment disk 8, preloading spring 10 is fixed between pressure adjustment disk 8 and spring seat 13, preloading spring 10 is under the effect of pressure adjustment disk 8, carry out pretightening force adjustment work, pressure adjustment disk 8 is threaded connection on valve gap 7, valve gap 7 inside is spool 3, valve gap 7 and spool 3 junction point are provided with stroke pad 9, the shift motion of spool 3 is limited by stroke pad 9, thus ensure the stroke of spool 3, pressure regulator valve original state is open mode, pump after starter gate valve, after after valve, pump is opened, medium constantly flows out by vacuum tank, pressure in vacuum tank reduces gradually, degree of vacuum increases, due to vacuum tank upper end and lower membrane cover 19 UNICOM, air pressure in lower membrane cover 19 is identical with vacuum tank, lower membrane cover 19 is bolted membrane cover 22, upper membrane cover 22 carries out UNICOM with ambient atmosphere, upper membrane cover 22 air pressure is greater than lower membrane cover 19 air pressure, then go up mineralization pressure between membrane cover 22 and lower membrane cover 19 poor, diaphragm 21 is provided with between upper membrane cover 22 and lower membrane cover 19, diaphragm 21 is on upper membrane cover 22 under atmospheric pressure effect, produce downward pressure, pressure is passed to push rod 15 by tray member 20, push rod 15 pairs of springs 10 produce downward thrust, thrust will overcome the pretightening force of spring 10 gradually, along with the continuous increase of degree of vacuum, push rod 15 downwards thrust increases gradually, until thrust is suitable with spring 10 pretightening force, namely the set point of spring 10 is arrived, overcoming the effect of spring 10 pretightening force with rear push-rod 15 makes spring 10 move downwards, spring 10 is with movable valve plug 3 to move down, then the valve of pressure regulator valve turns down gradually, until valve closing, the sealing surface of spool 3 adopts soft seal, valve closing back valve core 3 sealing place zero leakage can be ensured, the utility model valve adopts the design of stream open form, in order to ensure the degree of vacuum in vacuum tank, push rod 15 place in the middle part of lower membrane cover 19 is sealed by lower bellows components 5 and upper bellows components 18, when producing great degree of vacuum, also there is reliably sealability, realize zero leakage object, improve the working efficiency of pump after valve, ensure that valve seals reliably everywhere, substantially increase the comprehensive usability of valve, correspondingly reduce user cost again.
The foregoing is only the utility model preferred embodiment; not thereby mode of execution of the present utility model and protection domain is limited; to those skilled in the art; the equivalent replacement that all utilization the utility model specifications and diagramatic content are made and the scheme that apparent change obtains should be recognized, all should be included in protection domain of the present utility model.
Claims (9)
1. the empty sylphon seal self-contained pressure regulator of fidelity, comprise valve body, it is characterized in that, valve body lower portion is threaded connection valve seat, valve seat connects spool, spool outside is provided with valve gap, spool bottom is provided with lower bellows components, valve body both upper ends thereof connects gland respectively by bolt and nut, gland both sides connect connection bracket by column, valve gap is threaded connection pressure adjustment disk, in valve gap and spool joint is provided with stroke pad, valve gap top is provided with stuffing box, spool is provided with spring seat at Gland upper position, preloading spring is fixed with between spring seat and pressure adjustment disk, spool upper end connects push rod, push rod welds with upper bellows components lower end, push rod upper end is threaded with tray member, connection bracket connects lower membrane cover by bolt and nut, the upper end pretension of upper bellows components is sealed by pad by connection bracket and lower membrane cover, lower membrane cover two ends connect upper membrane cover by bolt and nut.
2. the empty sylphon seal self-contained pressure regulator of fidelity according to claim 1, is characterized in that, be provided with pad and seal between described valve body and valve seat.
3. the empty sylphon seal self-contained pressure regulator of fidelity according to claim 1, it is characterized in that, described spool is provided with guide sleeve below lower bellows components.
4. the empty sylphon seal self-contained pressure regulator of fidelity according to claim 1, is characterized in that, pretension is carried out and sealing by pad in the lower end of lower bellows components and valve gap by described valve body and gland.
5. the empty sylphon seal self-contained pressure regulator of fidelity according to claim 1, it is characterized in that, pre-stressed joint is carried out by the screw thread on nut and spool in described lower bellows components upper end.
6. the empty sylphon seal self-contained pressure regulator of fidelity according to claim 1, it is characterized in that, described lower bellows components upper end forms sealing by the pretension inclined-plane on spool.
7. the empty sylphon seal self-contained pressure regulator of fidelity according to claim 1, it is characterized in that, described stuffing box top is provided with Gland, is filled with filler in stuffing box.
8. the empty sylphon seal self-contained pressure regulator of fidelity according to claim 1, it is characterized in that, described spool end is provided with needle roller thrust bearing at spring seat upper position.
9. the empty sylphon seal self-contained pressure regulator of fidelity according to claim 1, be is characterized in that, sealed between described lower membrane cover and upper membrane cover by diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520882855.1U CN205089998U (en) | 2015-11-09 | 2015-11-09 | Empty sylphon seal self -operated pressure control valve of fidelity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520882855.1U CN205089998U (en) | 2015-11-09 | 2015-11-09 | Empty sylphon seal self -operated pressure control valve of fidelity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205089998U true CN205089998U (en) | 2016-03-16 |
Family
ID=55480685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520882855.1U Expired - Fee Related CN205089998U (en) | 2015-11-09 | 2015-11-09 | Empty sylphon seal self -operated pressure control valve of fidelity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205089998U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939981A (en) * | 2017-12-21 | 2018-04-20 | 海杰亚（北京）医疗器械有限公司 | The low temperature electric control valve and adjusting method of preload adjustable |
| CN108730602A (en) * | 2017-04-18 | 2018-11-02 | 阿自倍尔株式会社 | Pneumatic controller and regulating valve |
-
2015
- 2015-11-09 CN CN201520882855.1U patent/CN205089998U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730602A (en) * | 2017-04-18 | 2018-11-02 | 阿自倍尔株式会社 | Pneumatic controller and regulating valve |
| CN108730602B (en) * | 2017-04-18 | 2020-04-03 | 阿自倍尔株式会社 | Air pressure control device and regulating valve |
| CN107939981A (en) * | 2017-12-21 | 2018-04-20 | 海杰亚（北京）医疗器械有限公司 | The low temperature electric control valve and adjusting method of preload adjustable |
| CN107939981B (en) * | 2017-12-21 | 2023-12-22 | 海杰亚（北京）医疗器械有限公司 | Low-temperature electric regulating valve with adjustable pretightening force and regulating method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20171109 |