CN203115168U - Pneumatic-hydraulic type diaphragm valve - Google Patents
Pneumatic-hydraulic type diaphragm valve Download PDFInfo
- Publication number
- CN203115168U CN203115168U CN 201320166991 CN201320166991U CN203115168U CN 203115168 U CN203115168 U CN 203115168U CN 201320166991 CN201320166991 CN 201320166991 CN 201320166991 U CN201320166991 U CN 201320166991U CN 203115168 U CN203115168 U CN 203115168U
- Authority
- CN
- China
- Prior art keywords
- valve
- demarcation strip
- valve gap
- block
- 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
Links
Images
Abstract
The utility model relates to a pneumatic-hydraulic type diaphragm valve. The pneumatic-hydraulic type diaphragm valve mainly solves the technical problem that an existing diaphragm valve can achieve pneumatic drive or hydraulic drive with the help of a supporting mechanism. The pneumatic-hydraulic type diaphragm valve is characterized in that a cover cap which is fixedly connected with a valve cover and is provided with a sealing cavity is arranged on the upper portion of the valve cover, a separating plate is arranged at one end, penetrating through the valve cover, of a valve rod, the cavity is divided into an independent upper cavity and an independent lower cavity by the separating plate, the periphery of the separating plate and the inner wall of the cover cap are in sealing attachment, a closing device is arranged in the upper cavity of the cover cap, and is used for driving the separating plate to enable the valve rod to shift downwards to close a diaphragm leaf, and a gas-liquid inlet is formed in the side wall of the cover cap, is communicated with the lower cavity, and is used for driving the separating plate to shift upwards to open the diaphragm leaf. The pneumatic-hydraulic type diaphragm valve has the advantages that due to the fact that the separating plate is arranged on the valve rod, the two mutually-independent sealing cavities are formed in the cover cap, the closing device and the gas-liquid inlet are arranged in the two cavities, and the closing device is used for pushing the separating plate to shift downwards to achieve closing of a diaphragm door.
Description
Technical field
The utility model relates to a kind of membrane valve, relates to gas in particular, the formula of surging membrane valve, is mainly used in valve field.
Background technique
Membrane valve because of its unique construction with and particular principles, it is mainly used in pharmacy and the bioengineering field of aseptic operating mode, thus its directly in contact valve each component of circulation medium need have the required various characteristics of pharmaceutical fields such as stable chemical property, corrosion resistance, wearability, heat resistance, acidproof, ethanol-tolerant and the flowing medium phenomenon of delay and dead angle problem must not be arranged.
At present, the keying of normally used small-sized pneumatic diaphragm valve still is traditional manual operation, do not meet the development of modernization theory, also there are some health level pneumatic diaphragm valves on the market, but these pneumatic diaphragm valves are not that the structure of pneumatic controller is very complicated, be exactly that weight is heavier, highly higher.Since some be manual make into temporarily pneumatic, so generally all when this valve is installed, increase supporting structure, the little height of stability relatively, but also increased setting height(from bottom).
The model utility content
In order to solve above technical problem, it is a kind of safe and reliable that the utility model provides, and practicability is good, need not add a kind of gas, the formula of surging membrane valve that supporting structure can conveniently be used.
For solving above technical problem, the technological scheme that the utility model is taked is a kind of gas, the formula of surging membrane valve, include valve body and lid and put valve gap fixedly connected on valve body, between valve body and valve gap, be provided with diaphragm, this diaphragm links to each other with spool in being installed in valve gap, spool is fixed on valve rod one end, and the other end of valve rod passes valve gap and places outside the valve gap; Above described valve gap, be provided with and fixedly connected the block with sealed volume with valve gap, the end that described valve rod passes valve gap is provided with cavity volume is divided into two and forms the demarcation strip of two upper and lower chambers of independence, fit with the inner wall sealing of block around this demarcation strip, in the upper chamber of block, be provided with the driving demarcation strip and make valve rod to the closing device of the closed diaphragm of bottom offset, be provided with the driving demarcation strip that is communicated with lower chambers is opened gas from diaphragm to top offset, liquid entrance at the sidewall of blocking a shot.
Further, in described block, be provided with above the demarcation strip and drive demarcation strip to the driving spring of the closed diaphragm of bottom offset, this driving spring is set on the valve rod and the one end compresses mutually with demarcation strip, and the other end compresses mutually with the block top, and described driving spring constitutes described closing device; Be provided with and the release nut of blocking a shot and being threaded at described block top, be provided with a plurality of exhaust ports outside and upper chamber that are communicated with at this release nut.
Further, in described block, be provided with limited step, described demarcation strip place limited step below and when displacement of valve rod demarcation strip can fit with limited step.
Further, be provided with circular groove at all sidewalls of described demarcation strip, in this circular groove, be provided with the O type circle that cooperates with the inner wall sealing of blocking a shot.
Further, be provided with annular lip at all sidewalls of described valve gap, all sidewalls of valve gap are provided with screw thread above the lip limit, and described block is threaded with valve gap.
Further, above screw thread on the described valve gap sidewall, be provided with annular seal groove, in this annular seal groove, be provided with the seal ring that cooperates with the inner wall sealing of blocking a shot.
The beneficial effects of the utility model are by at valve rod demarcation strip being set, and utilize demarcation strip that the cavity volume of block is divided into two, make and form two separate sealed chamber in the block, arrange in two chambers like this that closing device is gentle, the liquid entrance, utilize closing device to promote demarcation strip to bottom offset, realize the closure of barrier film door; And insert tracheae or hydraulic pipe line by gas, liquid entrance, guiding gas or hydraulic medium enter bottom chamber roof pressure demarcation strip, just can realize the unlatching of membrane valve, adopt this structure, can need not by supporting structure independently, just can make membrane valve realize that gas, liquid drive closed or opens, and it is safe and reliable, simple in structure, practical, be easy to produce and install.
Description of drawings
Fig. 1 is the main TV structure figure of a kind of gas of the utility model embodiment, the formula of surging membrane valve
Fig. 2 is the three-dimensional reference drawing of a kind of gas of the utility model embodiment, the formula of surging membrane valve
Fig. 3 is A--A place sectional structure chart among Fig. 1
Embodiment
Below in conjunction with accompanying drawing the utility model mode of execution is described further:
As Figure 1-3, the utility model is a kind of gas, the formula of surging membrane valve, include valve body 1 and cover and put valve gap fixedly connected on valve body 12, between valve body 1 and valve gap 2, be provided with diaphragm 3, this diaphragm 3 links to each other with spool 4 in being installed in valve gap 2, spool 4 is fixed on valve rod 5 one ends, and the other end of valve rod 5 passes valve gap 2 and places outside the valve gap 2; Above described valve gap 2, be provided with and fixedly connected the block 6 with sealed volume with valve gap 2, the end that described valve rod 5 passes valve gap 2 is provided with cavity volume is divided into two and forms two upper and lower chambers 61 of independence, 62 demarcation strip 51, fit with the inner wall sealing of block 6 around this demarcation strip 51, in block 6 upper chamber 61, be provided with and drive demarcation strip 51 and make valve rod 5 to the closing device 7 of the closed diaphragm 3 of bottom offset, be provided with the driving demarcation strip 51 that is communicated with lower chambers 62 at the sidewall of block 6 to gas, the liquid entrance 63 of top offset unlatching diaphragm 3; By at valve rod 5 demarcation strip 51 being set, and utilize will block a shot 6 cavity volume of demarcation strip 51 to be divided into two and to form upper and lower chamber 61,62, closing device 7 gentle, liquid entrances 63 are set in upper and lower chamber 61,62 like this, utilize closing device 7 to promote demarcation strip 51 to bottom offset, realize the closure of diaphragm; And insert tracheae or hydraulic pipe line by gas, liquid entrance 63, guiding gas or hydraulic medium enter roof pressure demarcation strip 51 in the lower chambers 62, just can realize the unlatching of membrane valve, adopt this structure, can need not by supporting structure independently, just can make membrane valve realize that gas, liquid drive closed or opens, and it is safe and reliable, simple in structure, practical, be easy to produce and install.
In the present embodiment, for the ease of driving demarcation strip 51 to bottom offset, make valve rod 5 promote spool 4, diaphragm 3 closure valves, in described block 6, be provided with above the demarcation strip 51 and drive demarcation strip 51 to the driving spring 71 of the closed diaphragm 3 of bottom offset, this driving spring 71 is set on the valve rod 5 and the one end compresses mutually with demarcation strip 51, the other end compresses mutually with block 6 tops, and described driving spring 71 constitutes described closing device 7; Because the cavity volume in the block 6 is sealing configuration, make the upper and lower chamber 61,62 in the block 6 form the vacuum shape relatively, for ease of after gas or the disconnection of hydraulic medium pipeline, driving spring 71 can in time drive demarcation strip 51 closure valves, be provided with and the 6 release nuts 64 that are threaded of blocking a shot at described block 6 tops, be provided with a plurality of exhaust ports 641 outside and upper chamber 61 that are communicated with at this release nut 64; By the release nut 64 of the band pressure relief vent 641 that is communicated with upper chamber 61 is set at block 6 tops, like this after gas or the disconnection of hydraulic medium pipeline, air can enter in the upper chamber 61 of block 6 by pressure relief vent 641, at this moment, driving spring 71 just can order about demarcation strip 51 to bottom offset under spring action, make valve rod 5 promote the closure of spool 4 and diaphragm 3 realization valves; As 6 release nut 64 not being set at block, upper chamber 61 is under vacuum state, and driving spring 71 just can't order about demarcation strip 51 to bottom offset, causes the valve can't closure; In the upper chamber 61 of block 6, driving spring 71 is set, after gas or hydraulic medium pipeline disconnect in block 6 lower chambers 62 like this, just can utilize the elastic force of driving spring 71 to order about demarcation strip 51 to bottom offset, make valve rod 5 promote the closure of spool 4, diaphragm 3 realization valves; Certainly, from the purpose that will reach, closing device 7 also can adopt gas, liquid medium, as being arranged on the medium import and connecting tracheae or hydraulic tube in the upper chamber 61 of block 6, utilize the pressure of gas or hydraulic medium to promote demarcation strip 51 displacements, can realize identical purpose equally; But adopt driving spring 71 to drive demarcation strip 51, it is simple in structure, is easy to production and assembly, and therefore, the mode of execution of present embodiment is preferred implementation.
In the present embodiment, excessive for preventing gas or hydraulic medium pressure, cause valve rod 5 end bursting blocks 6, cause valve to damage, in described block 6, be provided with limited step 65, described demarcation strip 51 place limited step 65 belows and when valve rod 5 displacements demarcation strip 51 can fit with limited step 65; By at block 6 inwalls limited step 65 being set, just can utilize the displacement stroke of 65 pairs of demarcation strips 51 of this limited step to limit, thereby can effectively prevent from prolonging the working life of valve because of gas or the excessive damage block 6 of hydraulic medium.
In the present embodiment, be to guarantee the upper and lower chamber 61 at demarcation strip 51 two ends in the block 6,62 sealability, be provided with circular groove 52 at all sidewalls of described demarcation strip 51, in this circular groove 52, be provided with the O type circle 53 that cooperates with 6 inner wall sealings of blocking a shot; At demarcation strip 51 circular groove 52 is set, O type circle 53 just can be installed in circular groove 52 like this, when 6 inwall upper and lower displacements are blocked a shot on demarcation strip 51 edges, just can guarantee the block a shot upper and lower chamber 61 at 6 interior demarcation strip 51 two ends, 62 sealability by O type circle 53, guarantee the unlatching sensitivity of valve.
In the present embodiment, be to guarantee the degree of being connected firmly of block 6 and valve gap 2, be provided with annular lip 21 at all sidewalls of described valve gap 2, all sidewalls of valve gap 2 are provided with screw thread above lip limit 21, and described block 6 is threaded with valve gap 2; Lip limit 21 and screw thread are set, can be effectively to block a shot 6 and valve gap 2 between screw thread travel when limiting, also can guarantee to block a shot 6 and valve gap 2 between degree of being connected firmly.
In the present embodiment, for guaranteeing the sealability of block 6 and valve gap 2 joints, above screw thread on described valve gap 2 sidewalls, be provided with annular seal groove 22, in this annular seal groove 22, be provided with the seal ring 23 that cooperates with 6 inner wall sealings of blocking a shot.
Above-described embodiment should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection domain of the present utility model.
Claims (6)
1. a gas, the formula of surging membrane valve, include valve body and lid and put valve gap fixedly connected on valve body, be provided with diaphragm between valve body and valve gap, this diaphragm links to each other with spool in being installed in valve gap, spool is fixed on valve rod one end, and the other end of valve rod passes valve gap and places outside the valve gap; It is characterized in that above described valve gap, being provided with and fixedly connected the block with sealed volume with valve gap, the end that described valve rod passes valve gap is provided with cavity volume is divided into two and forms the demarcation strip of two upper and lower chambers of independence, fit with the inner wall sealing of block around this demarcation strip, in the upper chamber of block, be provided with the driving demarcation strip and make valve rod to the closing device of the closed diaphragm of bottom offset, be provided with the driving demarcation strip that is communicated with lower chambers is opened gas from diaphragm to top offset, liquid entrance at the sidewall of blocking a shot.
2. a kind of gas according to claim 1, the formula of surging membrane valve, it is characterized in that in described block, being provided with above the demarcation strip and drive demarcation strip to the driving spring of the closed diaphragm of bottom offset, this driving spring is set on the valve rod and the one end compresses mutually with demarcation strip, the other end compresses mutually with the block top, and described driving spring constitutes described closing device; Be provided with and the release nut of blocking a shot and being threaded at described block top, be provided with a plurality of exhaust ports outside and upper chamber that are communicated with at this release nut.
3. a kind of gas according to claim 1 and 2, the formula of surging membrane valve is characterized in that being provided with limited step in described block, described demarcation strip place limited step below and when displacement of valve rod demarcation strip can fit with limited step.
4. a kind of gas according to claim 3, the formula of surging membrane valve is characterized in that being provided with circular groove at all sidewalls of described demarcation strip, are provided with the O type circle that cooperates with the inner wall sealing of blocking a shot in this circular groove.
5. a kind of gas according to claim 4, the formula of surging membrane valve is characterized in that being provided with annular lip at all sidewalls of described valve gap, and all sidewalls of valve gap are provided with screw thread above the lip limit, and described block is threaded with valve gap.
6. a kind of gas according to claim 5, the formula of surging membrane valve is characterized in that being provided with annular seal groove above screw thread on the described valve gap sidewall, are provided with the seal ring that cooperates with the inner wall sealing of blocking a shot in this annular seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320166991 CN203115168U (en) | 2013-04-03 | 2013-04-03 | Pneumatic-hydraulic type diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320166991 CN203115168U (en) | 2013-04-03 | 2013-04-03 | Pneumatic-hydraulic type diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203115168U true CN203115168U (en) | 2013-08-07 |
Family
ID=48895516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320166991 Expired - Fee Related CN203115168U (en) | 2013-04-03 | 2013-04-03 | Pneumatic-hydraulic type diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203115168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114854513A (en) * | 2022-05-10 | 2022-08-05 | 贺兰神(宁夏)国际葡萄酒庄有限公司 | Micro-oxygen circulation effect adjustable grape wine brewing tank |
-
2013
- 2013-04-03 CN CN 201320166991 patent/CN203115168U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114854513A (en) * | 2022-05-10 | 2022-08-05 | 贺兰神(宁夏)国际葡萄酒庄有限公司 | Micro-oxygen circulation effect adjustable grape wine brewing tank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106641347A (en) | Pressure-relief one-way valve | |
| CN103542142A (en) | Self-operated check valve | |
| CN203115168U (en) | Pneumatic-hydraulic type diaphragm valve | |
| CN204664492U (en) | Water filter safety valve | |
| CN202946714U (en) | Pneumatic diaphragm valve | |
| CN202674420U (en) | Tube type constant pressure valve | |
| CN205781206U (en) | A kind of dark bar wedge-type single shutter gate valve | |
| CN201902188U (en) | Integral type pumping well head device | |
| CN202432052U (en) | All-weather T-shaped dead-weight breather valve | |
| CN204870551U (en) | Level sensor business turn over gas breather valve pressure balance and flow detection device | |
| CN106968641B (en) | Slide valve type plunger oil pump | |
| CN106195322A (en) | A kind of V-type two-sided diaphragm valve | |
| CN205533543U (en) | Hydro -cylinder with integrated hydraulic pressure lock cylinder end | |
| CN204573180U (en) | Pneumatic vacuum membrane valve | |
| CN203272892U (en) | Novel check valve | |
| CN208204083U (en) | A kind of tank bottom diaphragm valve | |
| CN212960003U (en) | One-way valve assembly | |
| CN202746606U (en) | Stop valve | |
| CN204312996U (en) | Anti-leakage gas drainage device | |
| CN104747743A (en) | Low and medium-pressure pneumatic balanced stop valve | |
| CN202527000U (en) | Automatic switching mechanism for filter | |
| CN204328185U (en) | Valve built-in fat alternately multi-sealed stuffing box structure | |
| CN211371300U (en) | Petrochemical valve device | |
| CN210770470U (en) | Oil gas recovery valve with breathing function | |
| CN209084128U (en) | A kind of pneumatic Outside screw stem rising through handwheel type gate valve of coupling type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140403 |