CN2379667Y - Two position type safety and balancing valve - Google Patents
Two position type safety and balancing valve Download PDFInfo
- Publication number
- CN2379667Y CN2379667Y CN 98249848 CN98249848U CN2379667Y CN 2379667 Y CN2379667 Y CN 2379667Y CN 98249848 CN98249848 CN 98249848 CN 98249848 U CN98249848 U CN 98249848U CN 2379667 Y CN2379667 Y CN 2379667Y
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- stable equilibrium
- cam
- push rod
- valve
- 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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- Safety Valves (AREA)
Abstract
The utility model relates to a two position type safety and balancing valve, composed of a switching shaft, a film, a valve body, etc. The utility model is characterized in that the cam of the switching shaft is rotated to drive the film to act, so the switch of the safety and balancing valve in cut-off type can be used for ensuring lots of real and reliable data in safely and on line regulating a differential gage.
Description
A kind of two formula stable equilibrium valves (being generally called two formula equilibrium valves) are mainly used in the standard orifice plate metering system of gas flow, in particular for the safety and the calibration of differential manometer.
At present, in the standard orifice plate metering system, the equilibrium valve that adopts is the pressure gas channels to be switched safety protection and the adjusting and measuring on line of realizing differential manometer by three mutual independent valve (claiming three valve groups again) usually.Because what this equilibrium valve adopted is gradual folding mode, makes the folding position of valve have randomness, may occurs artificially having a mind to or causing the metering pressure inaccurate unintentionally, thereby influence the authenticity of continuous data.Bring very big trouble for the management through quantification of links such as being applied in energy control and trade settlement.
The purpose of this utility model is that a kind of stable equilibrium valve that can overcome above-mentioned shortcoming will be provided.
The utility model is achieved in that two formula stable equilibrium valves are made up of switch axle, push rod, valve seat, diaphragm and valve body, after switch axle is turned an angle, the cam driven push rod that switch axle one end is connected acts on the diaphragm, make the diaphragm action and open or seal corresponding gas channels, thereby cut-off type ground changes the air pressure path, satisfies the requirement of differential manometer safety and adjusting and measuring on line.
Be that embodiment is elaborated to the utility model below with the accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the schematic representation of the utility model diaphragm.
The utility model is achieved in that two formula stable equilibrium valves are made of switch axle 1, push rod 3, diaphragm 5 and valve body 8 etc.When the stable equilibrium valve was in " pass " state, air chamber 9 and air chamber 10 communicated, and air chamber 11 and air chamber 12 communicate, simultaneously gas pressure act on the diaphragm 5 it is compressed make between air chamber 9 and 11 and air chamber 10 and 12 between cut off; The cam 2 that rotating switch axle 1 connects the one end rotates, cam 2 promotes push rod 3 and the diaphragm 5 that its other end connects is pressed to air chamber 9, up to air chamber 9 and air chamber 10 are cut off, air chamber 11 and 12 is cut off, this moment, air chamber 10 and air chamber 12 were by the aperture on the diaphragm 5 14 with reach valve seat 4 and communicate with air chamber 12, two formula stable equilibrium valves are in " opening " state, and simultaneously diaphragm 5 separates with valve seat 4, and promote the diaphragm push rod 6 that resets and make spring 7 compressions; When switch axle 1 turns to the off-position again, because the cam face designing shape makes diaphragm reset push rod 6 under the effect of spring 7 for oval and at short-axis direction circular the protrusion arranged, diaphragm 5 is resetted, thereby realized the switch of cut-off type.
The utility model is because switch axle cam and the design of diaphragm and the effect that utilizes the mutual air pressure of each air chamber, make two formula stable equilibrium valves realize the switch of cut-off type, thereby overcome the shortcoming of gradual stable equilibrium valve, guaranteed the true and reliable of differential manometer safety and continuous data.
Claims (4)
1, a kind of two formula stable equilibrium valves, constitute by switch axle, cam, push rod, diaphragm and valve body, it is characterized in that: by switch axle (1) is rotated, make cam (2) drive valve seat push rod (3) and the diaphragm push rod (6) that resets and act on the diaphragm (5), open cut-off type or closed valve (8) on air chamber (9), (10), (11), (12) between gas circuit.
2, a kind of two formula stable equilibrium valves as claimed in claim 1 is characterized in that: there is a circular convex (13) centre that is shaped as of diaphragm (5), and circumferential groove is distributed with pore (14).
3, a kind of as claim 1,2 described two formula stable equilibrium valves, it is characterized in that: diaphragm (5) adopts rubber material to make.
4, a kind of two formula stable equilibrium valves as claimed in claim 1 is characterized in that: cam (2) be shaped as ellipse, and circular the protrusion arranged at its short-axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98249848 CN2379667Y (en) | 1998-12-04 | 1998-12-04 | Two position type safety and balancing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98249848 CN2379667Y (en) | 1998-12-04 | 1998-12-04 | Two position type safety and balancing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2379667Y true CN2379667Y (en) | 2000-05-24 |
Family
ID=33994482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98249848 Expired - Fee Related CN2379667Y (en) | 1998-12-04 | 1998-12-04 | Two position type safety and balancing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2379667Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252801A (en) * | 2011-05-06 | 2011-11-23 | 宜宾机电一体化研究所 | Function centralized operation type differential pressure detection instrument connecting device |
| CN101153619B (en) * | 2006-09-28 | 2012-07-04 | 沃尔沃建造设备控股（瑞典）有限公司 | Pressure control device for heavy equipment |
| CN103672038A (en) * | 2012-09-26 | 2014-03-26 | 苏州工业园区咖乐美电器有限公司 | Liquid diverting device |
-
1998
- 1998-12-04 CN CN 98249848 patent/CN2379667Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101153619B (en) * | 2006-09-28 | 2012-07-04 | 沃尔沃建造设备控股（瑞典）有限公司 | Pressure control device for heavy equipment |
| CN102252801A (en) * | 2011-05-06 | 2011-11-23 | 宜宾机电一体化研究所 | Function centralized operation type differential pressure detection instrument connecting device |
| CN103672038A (en) * | 2012-09-26 | 2014-03-26 | 苏州工业园区咖乐美电器有限公司 | Liquid diverting device |
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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 |