CN2037796U - Metallic-diaphragm valve - Google Patents
Metallic-diaphragm valve Download PDFInfo
- Publication number
- CN2037796U CN2037796U CN 88210415 CN88210415U CN2037796U CN 2037796 U CN2037796 U CN 2037796U CN 88210415 CN88210415 CN 88210415 CN 88210415 U CN88210415 U CN 88210415U CN 2037796 U CN2037796 U CN 2037796U
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- valve
- contiguous block
- metallic
- diaphragm 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.)
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- Fluid-Driven Valves (AREA)
Abstract
The utility model relates to a metallic-diaphragm valve; the elevating of a diaphragm is directly controlled by a manual operation rod, and the dynamic force of the motion of the membrane does not use a spring; the defects that the travel range of using the spring as the dynamic force of the diaphragm valve is small and the phenomenon of the valve can not open can be overcome; the nominal diameter of the valve is more than 10 mm, and the face of the series of the metallic-diaphragm valve can be opened. The metallic-diaphragm valve has the advantages of convenient open and close, reliability, long lifetime and good performance.
Description
The utility model relates to a kind of metal diaphragm valve.
Existing metal diaphragm valve is made up of valve seat, valve gap, diaphragm, valve head and diaphragm elevator mechanism, it is power that diaphragm rises with the spring, spring is provided with upper (being located on the diaphragm) and the next two kinds, when handle was done breakdown action, valve head relied on the spring force motion.In case the valve diaphragm generation plastic deformation of this structure (as stroke being installed when excessive) then the phenomenon that valve is not opened can occur, if the pressure that back pressure produces diaphragm greater than spring force, situation is groove more just.So, although metal diaphragm valve has in characteristics such as high pressure, vacuum, worst cold case seal performance be good, but because of its nominal bore all (is subjected to the diaphragm travel limits) below 10mm, and switch is ineffective often, and has influenced its extensive use.
The purpose of this utility model is to provide a kind of switch convenient and reliable, and the diaphragm stroke is big, the metal diaphragm valve that nominal diameter can be more than 10mm.
The measure that the utility model is taked is the manual diaphragm elevator mechanism of direct drive diaphragm ascending, descending to be set, without the power of spring as the diaphragm rise.
Manually the diaphragm elevator mechanism can by manual rod with is connected with valve head and diaphragm seal, with the manual rod to-and-fro motion but not with the contiguous block formation of its rotation.
The anti-screw of turning round can be set in the valve, to prevent because the friction between manual rod and the contiguous block and diaphragm is produced torsion, anti-ly turns round the anti-groove of turning round that screw is installed on the contiguous block and in the valve gap and cooperate.
Establish the manual rod bottom
Type groove and contiguous block
Type mushroom head connects, and adds the anti-effect of turning round screw, and then contiguous block is not with the manual rod to-and-fro motion but with its rotation.
Manually the diaphragm elevator mechanism directly drives motion of membrane by manual rod, overcome the weakness that is used as power by spring, diaphragm can be sufficiently large, to guarantee stroke, strengthen nominal diameter, the phenomenon that valve is not opened can not occur simultaneously.
Metal diaphragm valve through above design, the characteristics such as good seal performance that promptly have existing diaphragm valve, switch is reliable again, according to the design needs, the diaphragm stroke can be enough big, nominal diameter can be more than 10mm, has broken the routine that metal diaphragm valve only is used for the following stop valve of Dg10, for the seriation of metal diaphragm valve lays the foundation.The metal diaphragm valve embodiment's that accompanying drawing provides for the utility model erection drawing.
Embodiment:
Present embodiment is the metal diaphragm valve of Dg20, the diaphragm external diameter is 60, manual rod (1), valve gap (8), valve seat (9), valve head (11) gland nut (12) and contiguous block (13) are all used stainless steel material car system, manual rod (1) bottom car one
The type groove, contiguous block (13) band
Type " mushroom head " is provided with the anti-groove (3) of turning round in the valve gap (8), to cooperate with the anti-screw (4) of turning round; Prevent that turning round screw (4) is fastened on the contiguous block (13), contiguous block (13) has fastening and locking effect concurrently to diaphragm, packing ring (2) (5), (7) and spool (10) are all used polytetrafluoroethylplastic plastic car system, spool (10) and valve head (11) setting-in.Diaphragm (6) is suppressed with Stainless Steel Band.More than each part adjoint assemble in the following order: valve head (11), diaphragm (6), packing ring (5), gland nut (12), contiguous block (13) and anti-ly turn round screw (4) and at first assemble; " mushroom head " of contiguous block put into the manual rod (1) that installs packing ring (2)
After in the type groove, the unthreaded portion on manual rod top is passed the tapped hole of valve gap, twists manual rod then, it is moved up, until turn round motionless till.At last packing ring (7) and valve seat (9) are contained on the valve gap.Above-mentioned metal diaphragm valve through test and use proof main performance is: Maximum operating pressure 15MP; Serviceability temperature scope-100～150 ℃; Leakage rate 1.33 * 10
-7PaL/S; Degree of vacuum 1.33 * 10Pa; Working life: still can normally use behind the switch 10,000 times.
Claims (1)
1. metal diaphragm valve of forming by valve seat, valve gap, diaphragm, valve head and diaphragm lifting control mechanism, the manual diaphragm elevator mechanism that is characterised in that setting by direct drive diaphragm (6) ascending, descending of manual rod (1) and contiguous block (13) formation of the present utility model, contiguous block 13) be tightly connected with valve head (11) and diaphragm (6), manual rod (1) bottom establish "
" the type groove, and contiguous block (13) "
" type mushroom head connects, and on contiguous block (13), be provided with and anti-ly turn round screw (4), cover to set up defences at threshold and turn round groove (3), make contiguous block (13) with the manual rod to-and-fro motion but not with its rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88210415 CN2037796U (en) | 1988-04-13 | 1988-04-13 | Metallic-diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88210415 CN2037796U (en) | 1988-04-13 | 1988-04-13 | Metallic-diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2037796U true CN2037796U (en) | 1989-05-17 |
Family
ID=4843914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88210415 Withdrawn CN2037796U (en) | 1988-04-13 | 1988-04-13 | Metallic-diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2037796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102470837A (en) * | 2009-06-29 | 2012-05-23 | 克诺尔商用车制动系统有限公司 | Pressure control valve arrangement having pressure medium guiding surface integrally formed onto a projection of the cover |
-
1988
- 1988-04-13 CN CN 88210415 patent/CN2037796U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102470837A (en) * | 2009-06-29 | 2012-05-23 | 克诺尔商用车制动系统有限公司 | Pressure control valve arrangement having pressure medium guiding surface integrally formed onto a projection of the cover |
| CN102470837B (en) * | 2009-06-29 | 2015-02-11 | 克诺尔商用车制动系统有限公司 | Pressure control valve arrangement having pressure medium guiding surface integrally formed onto a projection of the cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |