CN2147393Y - Dc full-closing plastics diaphragm valve - Google Patents
Dc full-closing plastics diaphragm valve Download PDFInfo
- Publication number
- CN2147393Y CN2147393Y CN 92232899 CN92232899U CN2147393Y CN 2147393 Y CN2147393 Y CN 2147393Y CN 92232899 CN92232899 CN 92232899 CN 92232899 U CN92232899 U CN 92232899U CN 2147393 Y CN2147393 Y CN 2147393Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- flap assembly
- diaphragm
- plastic diaphragms
- 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
A plastics diaphragm valve comprises a valve body, a valve flap assembly, a diaphragm, a valve cover fixedly connected with the valve body, a hand wheel fixedly connected with the nut of a valve rod and a valve rod whose one end is fixedly connected with the valve flap assembly and the other end is connected with the nut of a valve rod, wherein, one end of the diaphragm is connected with the valve flap assembly, the other end of the diaphragm is connected with the valve body; the central lines of the horizontal circulating segment of the valve body and the valve flap assembly form a certain included angle. The plastics diaphragm valve has the advantages of small medium flow resistance and big flow. The diaphragm insulates a valve flap from a driving assembly, so the plastics diaphragm valve has a good sealing performance and no leakage. The driving assembly is not corroded by a medium, is easy to be opened and closed and has a long service life.
Description
The utility model relates to a kind of plastic diaphragms valve, particularly a kind of totally-enclosed plastic diaphragms valve of direct current type that integrates stop valve and membrane valve advantage and be designed to.
Existing plastic diaphragms valve is a ridge type on the market, as shown in Figure 1, comprise a ridge type valve body 1, a flap assembly 2, a diaphragm 3, a valve gap 4, a handwheel 5, a Stem Mut 6 and a valve rod 7, when flowing medium when an end of valve body flows to the other end, because of valve body is middle is ridge type, therefore medium need flow to eminence again to dirty, so produce flow resistance; When valve opening, limited again because of diaphragm elasticity, can not make the flap standard-sized sheet, so owing to the flow that does not reach former design pipeline needs power consumption; In addition, diaphragm adopts rubber to make, and aging easily, valve often opens and closes in addition, and the brute force of being unable to undergo opening-closing process by aged diaphragm stretches and damages, so influence working life; Because diaphragm need rely on the thrust of valve rod to realize cutting off the purpose of medium fluid, this needs sizable external force again, so be difficult to Close All, leaks easily, and if exerted oneself and may well cover by damage threshold.
The purpose of this utility model is exactly the shortcoming that will overcome plastic diaphragms valve in the prior art, designs a kind of totally-enclosed direct current type plastic diaphragms valve.
The purpose of this utility model realizes by following design:
A kind of plastic diaphragms valve, comprise a valve body, one flap assembly, one barrier film, one valve gap of fixedlying connected with valve body, one handwheel and one by one end with flap assembly fixedly connected, the other end with Stem Mut be connected valve rod fixedly connected with Stem Mut, wherein said barrier film one end links to each other with the flap assembly, the other end links to each other with valve body, between the center line of described valve body level circulation section center line and described flap assembly certain angle is arranged.
The advantage of this plastic diaphragms valve of the present utility model is: the medium flow resistance is little, flow is big; Because flap and transmission part are isolated, so the good seal performance of valve, nothing leakage and can prevent the corrosion of Korrosionsmedium such as soda acid to driving component, open and close laborsaving, the life-span is long.
Be further described below in conjunction with the structure characteristic of accompanying drawing the utility model most preferred embodiment:
Fig. 1 is the structural representation of existing plastic diaphragms valve;
Fig. 2 is the structural representation of the utility model plastic diaphragms valve.
Referring to Fig. 2, plastic diaphragms valve of the present utility model comprise a valve body 1 that comprises level circulation section ', one flap assembly 2 ', one elastic diaphragm 3 ', one with the valve gap 4 of valve body 1 ' fixedly connected ', one with the handwheel 5 of a Stem Mut 6 ' fixedly connected ' with end one by one and flap assembly 2 ' fixedly connected, the valve rod 7 of the other end and Stem Mut 6 ' screw togather ', its septation 3 ' an end and flap assembly 2 ' link to each other, the other end and valve body 1 ' link to each other, therefore can be effectively with medium and valve rod 7 ' completely cut off, reach excellent sealing performance, this barrier film 3 ' be bellow type, and use polyamine fat, butyl rubber is made through sulfuration process, and it is strong to have stretchability, be difficult for advantages such as aging.Certainly, the straighttube-type barrier film made of barrier film 3 ' also by other elastic materials.Simultaneously, valve body 1 ' horizontal center line and flap assembly 2 ' centreline space at an angle, the best is 45 ° a angle, like this when valve open, almost the entry end of circulation section flows to outlet end to flowing medium along rectilinear direction from valve body 1 ' level, and flow resistance is little, flow is big.
In addition, this plastic diaphragms valve keying indicating arm 8 of also comprising one by one end and valve rod 7 ' be connected with one with the transparent cover 9 of handwheel 5 ' fixedly connected.When using this plastic diaphragms valve, only need to rotate handwheel 5 ', this handwheel 5 ' through Stem Mut 6 ' drive valve rod 7 ' move up and down and realize the keying of valve with lead of screw thread, be connected simultaneously valve rod 7 ' on keying indicating arm 8 move up and down with it, the user can see through transparent cover 9 and observe the lifting that opens and closes indicating arm 8, thereby understands the keying situation of valve.But wherein open and close indicating arm 8 by reflection material, preferably many ribs transparent material is made, and indicates obvious and attractive in appearance like this.
Claims (5)
1, a kind of plastic diaphragms valve, comprise a valve body, one flap assembly, one barrier film, one valve gap of fixedlying connected with valve body, a handwheel of fixedlying connected with a Stem Mut and the valve rod that end is fixedlyed connected with the flap assembly one by one, the other end and Stem Mut screw togather is characterized in that, described barrier film one end links to each other with the flap assembly, the other end links to each other with valve body, between the center line of described valve body level circulation section center line and described flap assembly certain angle is arranged.
2, plastic diaphragms valve as claimed in claim 1 is characterized in that, the angle between described valve body level circulation section center line and the described flap assembly center line is 45 °.
3, plastic diaphragms valve as claimed in claim 1 is characterized in that, the bellow type barrier film of described barrier film for making through sulfuration process with polyamine ester, butyl rubber.
4, plastic diaphragms valve as claimed in claim 1 is characterized in that, also comprises a keying indicating arm and a transparent cover of fixedlying connected with described handwheel that end one by one is connected with described valve rod.
5, plastic diaphragms valve as claimed in claim 4 is characterized in that, described keying indicating arm is made by many ribs transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92232899 CN2147393Y (en) | 1992-09-30 | 1992-09-30 | Dc full-closing plastics diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92232899 CN2147393Y (en) | 1992-09-30 | 1992-09-30 | Dc full-closing plastics diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2147393Y true CN2147393Y (en) | 1993-11-24 |
Family
ID=33775343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92232899 Expired - Fee Related CN2147393Y (en) | 1992-09-30 | 1992-09-30 | Dc full-closing plastics diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2147393Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286869A (en) * | 2016-09-21 | 2017-01-04 | 江苏龙力神精工科技有限公司 | Non-return hydraulic regulating valve |
| CN107327609A (en) * | 2017-07-03 | 2017-11-07 | 常熟市虞菱机械有限责任公司 | A kind of many turning valve manual driving devices of visual stem position |
| CN114542725A (en) * | 2022-03-03 | 2022-05-27 | 上海亚核阀业成套有限公司 | Fused salt stop valve |
-
1992
- 1992-09-30 CN CN 92232899 patent/CN2147393Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286869A (en) * | 2016-09-21 | 2017-01-04 | 江苏龙力神精工科技有限公司 | Non-return hydraulic regulating valve |
| CN107327609A (en) * | 2017-07-03 | 2017-11-07 | 常熟市虞菱机械有限责任公司 | A kind of many turning valve manual driving devices of visual stem position |
| CN114542725A (en) * | 2022-03-03 | 2022-05-27 | 上海亚核阀业成套有限公司 | Fused salt stop valve |
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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 |