CN2639627Y - Elastic negative pressure automatic valve - Google Patents
Elastic negative pressure automatic valve Download PDFInfo
- Publication number
- CN2639627Y CN2639627Y CN 03269192 CN03269192U CN2639627Y CN 2639627 Y CN2639627 Y CN 2639627Y CN 03269192 CN03269192 CN 03269192 CN 03269192 U CN03269192 U CN 03269192U CN 2639627 Y CN2639627 Y CN 2639627Y
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- China
- Prior art keywords
- valve
- valve body
- piston
- negative pressure
- port
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- Expired - Fee Related
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Abstract
The utility model discloses an elastic negative pressure automatic valve, which is characterized in that: a three-way type lower valve body and an upper valve body are connected through threaded of a connection pipe; a control valve port, which is communicated with the inlet, the upper port and the outlet, is arranged on a convex head inside the inner cavity of the lower valve body; a vacuum cavity where a piston is arranged inside the inner cavity, is arranged at the upper side of the upper valve body; a valve core, which is provided with a seal cushion seated at the control valve port at the lower end, is sleeved inside the connection pipe; a piston screw rod is sleeved inside the inner cavity of the valve core. The utility model has the advantages of ability of being a normal closed valve as well as a normal opened valve, simple structure, low manufacturing cost and suiting for auto control.
Description
Technical field
The utility model relates to a kind of valve, especially a kind of elasticity negative pressure automatic valve that suits to realize automatically fluid control under condition of negative pressure.
Background technique
At present, making in the society and use in the valve that is used to control fluid many kinds are arranged, divide with regard to its control mode, can be divided into manual control valve, electro motion control valve and pneumatic control valve three major types.Though manual control valve can be realized the task of control fluid, but do not have automatic control function, though electro motion control valve and pneumatic control valve can be realized the task of control automatically, but need be equipped with electric apparatus control apparatus and Pneumatic actuator, and because complex structure own, requirement on machining accuracy height, therefore have the manufacture cost height, using scope is subjected to certain restriction.
Summary of the invention
Task of the present utility model be to provide a kind of simple in structure, fabricating cost is low, good seal performance, can realize that convection cell controls automatically, can use also the elasticity negative pressure automatic valve that can use as the normally open valve door as normal closed gate by the vacuum system of system itself or by other vacuum system.
Task of the present utility model takes following technological scheme to realize, it comprises valve body down, upper valve body and connecting tube, it is characterized in that at one end being provided with the inlet opening the other end and be provided with liquid outlet opening, be provided with the convex head that is connected with valve body with intermediate portion that its liquid outlet opening and inlet opening intermediate portion are vertically installed with the inner chamber of valve body under the Three way type of valve port, have and inlet opening on this convex head, last valve port, the controlled valve port that liquid outlet opening is connected, under Three way type valve body on be threaded on the valve wall on valve port position therebetween have the connecting tube of through hole, the other end of connecting tube is threaded with upper valve body, upside at upper valve body has groove and by the upper end cap that is provided with tracheae thereon its groove sealing is formed vacuum chamber, by the piston that is arranged in the vacuum chamber vacuum chamber partition is upper chamber and lower chambers, upper valve body sidewall be provided with the following tracheae that is connected with lower chambers, between piston and upper end cap, be positioned with piston reset spring, in the through hole of connecting tube, be set with and be positioned with the spool that can be located in the sealing gasket on the controlled valve port in its underpart, the epimere of spool is an elastic bellows, be set with the piston screw on the piston of locating after by upper valve body its upper end in the inner chamber of spool, the lower end of piston screw is threaded with spool.
Piston reset spring described in the technical solutions of the utility model is pressure spring or extension spring.
According to technique scheme, the utility model can be realized function normally closed or that often open by changing Returnning spring according to the practical use difference.When using as normal closed gate, in advance with Returnning spring by dressing up pressure spring, and be connected with vacuum system by last tracheae, the elastic force of Returnning spring will act on the piston this moment, make that piston is stressed to move down, and drive spool by piston screw and move down, gasket base is dropped on the controlled valve port, thereby realize the task of normal closed gate, when need are opened valve, start vacuum system, upper chamber is vacuumized, and under the effect of vacuum power, piston will overcome on the active force of Returnning spring and move, and move on the drive sealing gasket, thereby the task of valve is opened in realization.When using as the normally open valve door, in advance with Returnning spring by dressing up extension spring, and by descending tracheae to be connected with vacuum system, this moment is under the stretching action of Returnning spring, sealing gasket will break away from controlled valve port, thereby realize the task of normally open valve door, when the needs throttle down, start vacuum system, lower chambers is vacuumized, under the effect of vacuum power, the effect that piston will overcome Returnning spring moves down and drives sealing gasket and moves down it is located on the controlled valve port, thereby realizes the task of throttle down.
Owing to adopted technique scheme, the utlity model has following evident characteristic: the one, can realize the task of normally closed or normally open valve door by changing Returnning spring; The 2nd, the utility model can be realized the convection cell task of control automatically by the vacuum system of system itself or by other vacuum system; The 3rd, owing to own simple in structure, low cost of manufacture, good seal performance, so have the characteristics that popularize that are suitable for.
Description of drawings
To be described below the utility model with reference to the accompanying drawings below.
Accompanying drawing 1 has provided structural representation of the present utility model.
In the accompanying drawings, 1 for following valve body, 2 be sealing gasket, 3 for spool, 4 for connecting tube, 5 for bellows, 6 for packing ring, 7 for upper valve body, 8 for bolt, 9 for Returnning spring, 10 for last tracheae, 11 for upper end cap, 12 for piston, 13 for tracheae down, 14 for piston screw, 15 for screw thread, 16 for inlet opening, 17 for controlled valve port, 18 for liquid outlet opening, 19 for last valve port, 20 for lower chambers, 21 for upper chamber, 22 for screw thread, 23 be the convex head.
Embodiment
With reference to the accompanying drawings, at one end be provided with inlet opening 16 the other ends and be provided with liquid outlet opening 18, be provided with the convex that is connected with valve body 23 with inner chamber intermediate portion that its liquid outlet opening 18 and inlet opening 16 intermediate portions are vertically installed with valve body 1 under the Three way type of valve port 19, on convex 23, have and inlet opening 16, lower valve port 19, the controlled valve port 17 that liquid outlet opening 18 is connected, the valve wall of valve port 19 upper end is provided with internal thread 15 under Three way type on the valve body 1, be connected with the connecting tube 4 that position therebetween has through hole by internal thread 15, the other end of connecting tube 4 is threaded with upper valve body 7, upside at upper valve body 7 has groove and by the upper end cap 11 that is provided with tracheae 10 thereon its groove sealing is formed vacuum chamber, by the piston 12 that is arranged in the vacuum chamber vacuum chamber partition is upper chamber 21 and lower chambers 20, the sidewall of upper valve body 7 is provided with the following tracheae 13 that is connected with lower chambers 20, between piston 12 and upper end cap 11, be positioned with piston reset spring 9, in the through hole of connecting tube 4, be set with the spool 3 that is positioned with the sealing gasket 2 on the controlled valve port 17 that can be located in following valve body 1 inner chamber in its underpart, the epimere of this spool 3 is an elastic bellows 5, be set with its upper end and be positioned at piston screw 14 on the piston 12 after by upper valve body in the inner chamber of spool 3, the lower end of piston screw 14 is threaded with spool 3.
Claims (3)
1, a kind of elasticity negative pressure automatic valve, it comprises valve body down, upper valve body and connecting tube, it is characterized in that at one end being provided with the inlet opening the other end and be provided with liquid outlet opening, be provided with the convex head that is connected with valve body with intermediate portion that its liquid outlet opening and inlet opening intermediate portion are vertically installed with the inner chamber of valve body under the Three way type of valve port, have and inlet opening on this convex head, last valve port, the controlled valve port that liquid outlet opening is connected, under Three way type valve body on be threaded on the valve wall on valve port position therebetween have the connecting tube of through hole, the other end of connecting tube is threaded with upper valve body, upside at upper valve body has groove and by the upper end cap that is provided with tracheae thereon its groove sealing is formed vacuum chamber, by the piston that is arranged in the vacuum chamber vacuum chamber partition is upper chamber and lower chambers, upper valve body sidewall be provided with the following tracheae that is connected with lower chambers, between piston and upper end cap, be positioned with piston reset spring, in the through hole of connecting tube, be set with and be positioned with the spool that can be located in the sealing gasket on the controlled valve port, in the inner chamber of spool, be set with the piston screw on the piston of locating after by upper valve body its upper end in its underpart.
2, elasticity negative pressure automatic valve according to claim 1, the epimere that it is characterized in that spool is an elastic bellows.
3, elasticity negative pressure automatic valve according to claim 1 is characterized in that piston reset spring is pressure spring or extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03269192 CN2639627Y (en) | 2003-07-23 | 2003-07-23 | Elastic negative pressure automatic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03269192 CN2639627Y (en) | 2003-07-23 | 2003-07-23 | Elastic negative pressure automatic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2639627Y true CN2639627Y (en) | 2004-09-08 |
Family
ID=34299839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03269192 Expired - Fee Related CN2639627Y (en) | 2003-07-23 | 2003-07-23 | Elastic negative pressure automatic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2639627Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243421A (en) * | 2013-04-19 | 2013-08-14 | 徐州斯尔克纤维科技股份有限公司 | Pneumatic control system of two-for-one twister |
| CN107761935A (en) * | 2017-10-27 | 2018-03-06 | 武汉圣禹排水系统有限公司 | A kind of vacuum headstock gear, vacuum rinse-system and method |
| CN112879571A (en) * | 2021-01-18 | 2021-06-01 | 湖北三江航天红峰控制有限公司 | Low-temperature corrugated pipe valve |
| CN115930083A (en) * | 2022-09-07 | 2023-04-07 | 宝腾智能润滑技术(东莞)有限公司 | Pressurized oil mist lubrication system |
-
2003
- 2003-07-23 CN CN 03269192 patent/CN2639627Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243421A (en) * | 2013-04-19 | 2013-08-14 | 徐州斯尔克纤维科技股份有限公司 | Pneumatic control system of two-for-one twister |
| CN103243421B (en) * | 2013-04-19 | 2015-12-02 | 徐州斯尔克纤维科技股份有限公司 | A kind of atmospheric control of two-for-one twister |
| CN107761935A (en) * | 2017-10-27 | 2018-03-06 | 武汉圣禹排水系统有限公司 | A kind of vacuum headstock gear, vacuum rinse-system and method |
| CN107761935B (en) * | 2017-10-27 | 2023-06-20 | 武汉圣禹排水系统有限公司 | Vacuum start-stop device, vacuum flushing system and method |
| CN112879571A (en) * | 2021-01-18 | 2021-06-01 | 湖北三江航天红峰控制有限公司 | Low-temperature corrugated pipe valve |
| CN115930083A (en) * | 2022-09-07 | 2023-04-07 | 宝腾智能润滑技术(东莞)有限公司 | Pressurized oil mist lubrication system |
| CN115930083B (en) * | 2022-09-07 | 2024-02-02 | 宝腾智能润滑技术(东莞)有限公司 | Pressurized oil mist lubrication system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |