CN2495860Y - Diaphragm valve used for liquid or gas - Google Patents
Diaphragm valve used for liquid or gas Download PDFInfo
- Publication number
- CN2495860Y CN2495860Y CN 01250022 CN01250022U CN2495860Y CN 2495860 Y CN2495860 Y CN 2495860Y CN 01250022 CN01250022 CN 01250022 CN 01250022 U CN01250022 U CN 01250022U CN 2495860 Y CN2495860 Y CN 2495860Y
- Authority
- CN
- China
- Prior art keywords
- valve
- diaphragm
- chamber
- guide sleeve
- cavity
- 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 provides a diaphragm valve used for liquid or gas, comprising a valve, a valve seat positioned in the flow channel, and a valve rod connecting the valve petal and the rubber diaphragm. The valve is in Y shape which comprises a flow cavity and a valve control cavity that is communicated with the flow cavity and has axes forming an angle of 45 degrees to 60 degrees with the axes of the flow cavity; the valve control cavity is internally fixed with a guide sleeve, and the valve rod is arranged in the valve control cavity by use of the guide sleeve; moreover, the rubber diaphragm is pressed at the upper end of the valve control cavity through a valve cover which is provided with an upper sealing diaphragm cavity pipe interface, and the cavity wall of the valve control cavity that is positioned above the guide sleeve is provided with a lower sealing diaphragm cavity pipe interface.
Description
(1) technical field:
The utility model relates to a kind of valve, relates to a kind of liquid, pneumatic dual-purpose membrane valve of carrying on the liquid medium pipeline that be applicable to specifically.
(2) background technique:
Liquid of the prior art, pneumatic dual-purpose membrane valve mostly are straight-through structure, and during valve closing, its power source is by conduit pressure medium in the pipeline or peripheral hardware compressed gas source to be input to the diaphragm cavity acquisition.For guaranteeing the reliability of valve closing, increase its closing pressure, common way adds a Returnning spring above diaphragm of rubber, the pressure that makes spring and fluid pressure acting in conjunction on elastomer diaphragm, promotion flap throttle down.Though the said structure feature can realize closing rapidly of valve, the resistance when also having increased valve opening also makes the barrier film load increase the weight of simultaneously, causes the flexible reduction of barrier film, is prone to fatigue failure.In addition because of due to himself structure, also exist easy generation water hammer in the actual motion, close the deficiency of poor reliability.
(3) summary of the invention:
The purpose of this utility model just is to overcome above-mentioned deficiency of the prior art, and provides a kind of structure more reasonable, and open and close is smooth and easy and reliable and stable liquid, pneumatic dual-purpose membrane valve fast.
The utility model can adopt following measure to realize: liquid of the present utility model, pneumatic dual-purpose membrane valve comprise valve body, are positioned at the valve seat in valve flowing channel chamber, the flap that matches with valve seat, and be connected valve rod between flap and the diaphragm of rubber; Described valve body is a Y font structure, and it comprises flow passage chamber and is connected with flow passage chamber and valve control chamber that its axis and flow passage chamber axis-60 ° of angles at 45 are provided with; At valve control chamber internal fixation one guide sleeve is installed, described valve rod is installed in the valve control chamber by guide sleeve; The valve gap that described diaphragm of rubber is provided with seal dissepiment lumen interface by its body is fitted in the upper end-hole place of described valve control chamber; Be positioned on the chamber wall of valve control chamber of guide sleeve top and be processed with lower seal diaphragm cavity interface tube.
Valve seat described in the utility model and flap, valve rod are the coaxial line structure; Be installed with in the described guide sleeve and the mutually leakproof fit seal ring of valve rod.
Valve closing is rapid in order to make, good seal, and the area ratio between diaphragm of rubber described in the utility model and the flap is greater than 2.
Working principle of the present utility model is as follows:
When the utility model is worked, need the control of two position four-way solenoid valves under aerodynamic conditions.When valve need be closed, make pressed gas enter the seal dissepiment chamber by the control of two position four-way solenoid valves, the lower seal diaphragm cavity then is in exhaust condition, increase along with the diaphragm of rubber upper pressure, flap is finished airtight valve seat under the downward impetus of diaphragm of rubber and valve rod: during when valve opening, transposition action by two position four-way solenoid valves makes pressed gas enter the lower seal diaphragm cavity, last seal dissepiment chamber then is in exhaust condition, increase along with diaphragm of rubber bottom pressure, flap is finished breakdown action with moving on diaphragm of rubber and the valve rod.
If the utility model uses under the condition of surging, the controlling liquid that only need will have pressure during throttle down charges into the seal dissepiment chamber and can finish closing motion, and during valve opening, only need make by control mechanism to charge into the breakdown action that the liquid discharge of seal dissepiment chamber just can be finished valve.
The advantage that the utility model not only has compared to existing technology is simple and reasonable, the sealing reliable, have wide range of applications, also because its valve body adopts Y font structure, make the flap action direction opposite with the pipeline liquid flow direction, thereby effectively avoided the generation of water hammer, also reduce simultaneously the loss of pipeline pressure, made barrier film prolong working life.
(4) description of drawings:
Accompanying drawing is a plan view of the present utility model.
1 is valve body among the figure, and 2 is the valve flowing channel chamber, and 3 is valve seat, and 4 is flap, and 5 is valve rod, and 6 is guide sleeve, and 7 is diaphragm of rubber, and 8 is last seal dissepiment lumen interface, and 9 is valve gap, 10 valve control chambers, and 11 is lower seal diaphragm cavity interface tube, 12 seal rings.
(5) embodiment:
The utility model is done with detailed description below with reference to embodiment's (accompanying drawing):
Liquid of the present utility model, pneumatic dual-purpose membrane valve comprise valve body (1), are positioned at the valve seat (3) of valve flowing channel chamber (2), the flap (4) that matches with valve seat (3), and be connected valve rod (5) between flap (4) and the diaphragm of rubber (7); Described valve body (1) is a Y font structure, and it comprises flow passage chamber (2) and is connected with flow passage chamber and valve control chamber (10) that its axis and flow passage chamber axis-60 ° of angles at 45 are provided with; At valve control chamber (10) internal fixation one guide sleeve (6) is installed, described valve rod (5) is installed in the valve control chamber (10) by guide sleeve (6), and be installed with in the guide sleeve (6) and the mutually leakproof fit seal ring of valve rod (5) (12), be assembled together with movingly relation between described valve rod (5) and the guide sleeve (6); The valve gap (9) that described diaphragm of rubber (7) is provided with seal dissepiment lumen interface (8) by its body is fitted in the upper end-hole place of described valve control chamber; Be positioned on the chamber wall of valve control chamber (10) of guide sleeve (6) top, diaphragm of rubber (7) below and be processed with lower seal diaphragm cavity interface tube (11); Described valve seat (3) is the coaxial line structure with flap (4), valve rod (5); Area ratio between described diaphragm of rubber (7) and the flap (4) is greater than 2.
Claims (4)
1, a kind of liquid, pneumatic dual-purpose membrane valve, it comprises valve body (1), be positioned at the valve seat (3) of valve flowing channel chamber (2), the flap (4) that matches with valve seat (3), and be connected valve rod (5) between flap (4) and the diaphragm of rubber (7), it is characterized in that: described valve body (1) is for Y font structure, and it comprises flow passage chamber (2) and is connected with flow passage chamber and the valve control chamber (10) of its axis and-60 ° of angles setting at 45 of flow passage chamber axis; At valve control chamber (10) internal fixation one guide sleeve (6) is installed, described valve rod (5) is installed in the valve control chamber (10) by guide sleeve (6): the valve gap (9) that described diaphragm of rubber (7) is provided with seal dissepiment lumen interface (8) by its body is fitted in the upper end-hole place of described valve control chamber; Be positioned on the chamber wall of valve control chamber (10) of guide sleeve (6) top and be processed with lower seal diaphragm cavity interface tube (11).
2, liquid according to claim 1, pneumatic dual-purpose membrane valve is characterized in that: described valve seat (3) is the coaxial line structure with flap (4), valve rod (5).
3, liquid according to claim 1, pneumatic dual-purpose membrane valve is characterized in that: the area ratio between described diaphragm of rubber (7) and the flap (4) is greater than 2.
4, liquid according to claim 1, pneumatic dual-purpose membrane valve is characterized in that: be installed with in the described guide sleeve (6) and the mutually leakproof fit seal ring of valve rod (5) (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250022 CN2495860Y (en) | 2001-07-07 | 2001-07-07 | Diaphragm valve used for liquid or gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250022 CN2495860Y (en) | 2001-07-07 | 2001-07-07 | Diaphragm valve used for liquid or gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2495860Y true CN2495860Y (en) | 2002-06-19 |
Family
ID=33660270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01250022 Expired - Fee Related CN2495860Y (en) | 2001-07-07 | 2001-07-07 | Diaphragm valve used for liquid or gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2495860Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805741A (en) * | 2019-10-30 | 2020-02-18 | 铜陵新创流体科技有限公司 | Remote control ball-cock assembly with non return function |
| CN115076410A (en) * | 2022-07-21 | 2022-09-20 | 南京道隆生物科技有限公司 | Intelligent control method and structure of pneumatic diaphragm valve |
-
2001
- 2001-07-07 CN CN 01250022 patent/CN2495860Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805741A (en) * | 2019-10-30 | 2020-02-18 | 铜陵新创流体科技有限公司 | Remote control ball-cock assembly with non return function |
| CN115076410A (en) * | 2022-07-21 | 2022-09-20 | 南京道隆生物科技有限公司 | Intelligent control method and structure of pneumatic diaphragm valve |
| CN115076410B (en) * | 2022-07-21 | 2022-11-04 | 南京道隆生物科技有限公司 | Intelligent control method and structure of pneumatic diaphragm 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 |