CN2312375Y - Two fragment diaphragm type liquid controlling valve - Google Patents
Two fragment diaphragm type liquid controlling valve Download PDFInfo
- Publication number
- CN2312375Y CN2312375Y CN 97235087 CN97235087U CN2312375Y CN 2312375 Y CN2312375 Y CN 2312375Y CN 97235087 CN97235087 CN 97235087 CN 97235087 U CN97235087 U CN 97235087U CN 2312375 Y CN2312375 Y CN 2312375Y
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- China
- Prior art keywords
- valve
- pressure
- valve body
- valves
- diaphragm
- 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
The utility model discloses a two fragment diaphragm type liquid control valve, which is composed of a main valve and a control system, wherein, the main valve is composed of a valve body, a valve cap and two pieces of hemispherical rubber diaphragms. The two pieces of opening and closing diaphragms are respectively formed into a sealing pair with the upper and the lower faces of a streamline form symmetrical inner cavity which is composed of the valve body and the valve cap; the two pieces of the diaphragm are folded, and the middle is formed into a control cavity; the magnitude of the pressure of the medium in the control cavity is controlled through the control system to achieve the purpose of simultaneous opening and closing. The utility model has the advantages of reliable sealing, good granularity resistance, small flow resistance, long service life and wide purpose; the utility model can be used as functional valves such as opening or closing valves, reducing valves, pressure release valves, etc., and the utility model can be used for mud valves and blowdown valves.
Description
The utility model relates to a kind of valve, particularly relates to a kind of membrane valve of hyraulic controlled type.
Existing single-lobe diaphragm type hydraulic control valve, when the main valve full-gear, formed passage is the ridged shape, so flow resistance is bigger, and the back and forth amount of deformation of single-lobe barrier film from the standard-sized sheet to the full cut-off is bigger, fatiguability and influence working life.
The purpose of this utility model is: provide a kind of and can effectively overcome above-mentioned defective, flow resistance is little, the bivalve diaphragm type hydraulic control valve of long service life.
The technical solution of the utility model is: a kind of bivalve diaphragm type hydraulic control valve, form by main valve and control system two-part, and wherein main valve is made up of valve body, valve gap and a pair of keying diaphragm etc.; Control system is made up of pilot valve, throttle valve, inlet pressure pressure tappings, outlet pressure pressure tappings and control chamber pressure pressure tappings etc., it is characterized in that: opening and closing diaphragm is two hemisphere membrane structures, and the diaphragm that edge designs is turned over flange involutes.
Because adopt such scheme, be not difficult to draw as drawing a conclusion: it is good that the utility model not only seals reliable, anti-graininess, and flow resistance is little, long service life.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Accompanying drawing is a cross-sectional view of the present utility model.
This bivalve diaphragm type hydraulic control valve is made up of main valve and control system two-part among the figure, wherein main valve is made up of valve body 1, valve gap 2 and two keying diaphragms 3, valve body 1 profile is a three-way shape, be respectively equipped with import, outlet and valve gap mount inlet, all manage blue structure at these three mouth places, midline is established valve body pressure ring 10 about valve.Its two axillary root is in valve body 1, and is middle by vertical gusset 11 supports of triangle, with valve body 1 cast solid.Valve gap 2 is a round structure, its down front cover be a hyperboloid, be the part of the upper side of whole valve insertion, blue structure is managed in its upper end, interconnects with the upside flange arrangement of valve body 1, and its lower end is in valve midline up and down, if circular valve gap pressure ring 9, two axillary roots are in valve gap 2.The middle triangle gusset 12 of using supports, and casts integral body with valve gap 2, and valve gap 2 is connected with valve body 1 inner chamber fairing after installing with valve body 1, forms the whole fairing inner chamber of this valve.Open and close diaphragm 3 usefulness rubber materials and make, its profile is the hemisphere type membrane structure, establishes the flange that turns up in its hemisphere edge.Two open and close diaphragm 3 sets up separately up and down along valve body 1 center line, valve gap pressure ring 9 and valve body pressure ring 10 are clamped the spherical diaphragm 3 that opens and closes of involutory two halves up and down, in the middle of this two involutory diaphragm 3, form a control chamber, pass to control chamber pressure pressure tappings by copper pipe of a groove embedding on the involutory surface.This following front cover to diaphragm 3 epispheres and valve gap 2 forms the last sealing pair of this valve.Lower semisphere and valve body 1 downside inner chamber form the lower seal pair of this valve.And this two sealing pair is symmetry up and down, forms laterally zygomorphic two streamline passages when this valve standard-sized sheet.Control system is made up of pilot valve 5, throttle valve 4, inlet pressure pressure tappings 7, outlet pressure pressure tappings 8 and control chamber pressure pressure tappings 6 etc.Inducer, outlet section and front and back midline at valve body 1 are established inlet pressure pressure tappings 7, outlet pressure pressure tappings 8 and control chamber pressure pressure tappings 6 with pipe thread respectively, between inlet pressure pressure tappings 7 and control chamber pressure pressure tappings 6, connect throttle valve 4 by pipeline, between control chamber pressure pressure tappings 6 and outlet pressure pressure tappings 8, be connected pilot valve 5, again at inlet pressure pressure tappings 7 and outlet pressure pressure tappings 8 difference pressure gauge in parallel, forming control system, thus constitute whole bivalve diaphragm type hydraulic control valve.
Claims (3)
1. a bivalve diaphragm type hydraulic control valve is made up of main valve and control system two-part, and wherein main valve is made up of valve body, valve gap and two keying diaphragms etc.; Control system is made up of pilot valve, throttle valve, inlet pressure pressure tappings, outlet pressure pressure tappings and control chamber pressure pressure tappings etc., it is characterized in that: it is two hemisphere membrane structures that this valve opens and closes diaphragm, and the diaphragm that the flange that turns up is established at the edge involutes.
2. a kind of bivalve diaphragm type hydraulic control valve according to claim 1, it is characterized in that: described valve body, its profile is a three-way shape, be respectively equipped with import, outlet and valve gap mount inlet, and manage blue structure at these three mouth places, midline is provided with the valve body pressure ring about valve body, in its inducer, outlet section and front and back midline, is provided with inlet pressure pressure tappings, outlet pressure pressure tappings and control chamber pressure pressure tappings with pipe thread.
3. a kind of bivalve diaphragm type hydraulic control valve according to claim 1 is characterized in that: described valve gap is a round structure, and front cover is a hyperboloid under it, and blue structure is managed in its upper end, and its lower end midline about valve body is established circular valve gap pressure ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97235087 CN2312375Y (en) | 1997-07-22 | 1997-07-22 | Two fragment diaphragm type liquid controlling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97235087 CN2312375Y (en) | 1997-07-22 | 1997-07-22 | Two fragment diaphragm type liquid controlling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2312375Y true CN2312375Y (en) | 1999-03-31 |
Family
ID=33946275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97235087 Expired - Fee Related CN2312375Y (en) | 1997-07-22 | 1997-07-22 | Two fragment diaphragm type liquid controlling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2312375Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451413C (en) * | 2001-07-27 | 2009-01-14 | 陈汉保 | Low energy consumption and large flow valve |
| CN110726002A (en) * | 2019-10-22 | 2020-01-24 | 中国计量大学 | Micro-fluidic negative pressure driving normally-open micro valve |
-
1997
- 1997-07-22 CN CN 97235087 patent/CN2312375Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451413C (en) * | 2001-07-27 | 2009-01-14 | 陈汉保 | Low energy consumption and large flow valve |
| CN110726002A (en) * | 2019-10-22 | 2020-01-24 | 中国计量大学 | Micro-fluidic negative pressure driving normally-open micro 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 |