CN200940712Y - Gas control valve coreless liquid change valve - Google Patents
Gas control valve coreless liquid change valve Download PDFInfo
- Publication number
- CN200940712Y CN200940712Y CN 200620107017 CN200620107017U CN200940712Y CN 200940712 Y CN200940712 Y CN 200940712Y CN 200620107017 CN200620107017 CN 200620107017 CN 200620107017 U CN200620107017 U CN 200620107017U CN 200940712 Y CN200940712 Y CN 200940712Y
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- CN
- China
- Prior art keywords
- film sheet
- valve
- compound film
- liquid material
- valve body
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses an air control no-valve core hydraulic operated directional valve, which comprises a valve body, in which a channel and a chamber flow field connecting with the channel are arranged, and a feed opening connecting with the channel, an air source controlling air inlet and a discharging port connects with the chamber flow field are arranged on the valve body. A disc composite diaphragm is arranged between the air source controlling air inlet which is provided on the end cover of the valve and the channel opening, and the end cover, the composite diaphragm and the valve are connected by screws, and the base course of the composite diaphragm is rubber layer on which a layer of polytetrafluoroethylene layer is provided. The utility model is provided with the advantages of simple and reliable structure, good corrosion resistance and long service life.
Description
Technical field
The utility model relates to a kind of selector valve, relates in particular to the valve core less liquid material reversal valve that a kind of gas control adopts diaphragm.
Background technique
In the resin sand technology of Foundry Production, generally need in sand muller, to carry two kinds of liquid material, resin and curing agent.These two kinds of liquid material enter in the sand muller when the beginning mulling, finish back liquid material in mulling and turn back to by reflow pipe in the liquid charging basket, therefore need liquid material selector valve of configuration in whole liquid material conveying tube road.Because curing agent is a kind of corrosive liquids, therefore being used for this technology selector valve need have anti-corrosion capacity preferably.The selector valve of prior art has adopted resistant material, but, it realizes commutating because structurally adopting cylinder to drive the spool moving linearly, therefore still exist sealing and corrosion protection problem in the joint of spool and cylinder column, owing to adopted cylinder, make that the volume of this selector valve is excessive simultaneously.
Summary of the invention
The utility model main purpose is: the selector valve corrosion resistance that solves prior art is relatively poor, product short technical problem in working life, thus develop a kind of good corrosion resistance, the novel Pneumatic controlled valve core less liquid material reversal valve of long service life.
Another purpose of the present utility model is: develop a kind of simple in structure, the Pneumatic controlled valve core less liquid material reversal valve that cost of production is low.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of Pneumatic controlled valve core less liquid material reversal valve, it is characterized in that: contain valve body, be provided with runner and the chamber that links to each other with runner in the valve body, valve body is provided with the material feeding mouth that is communicated with runner, controls the suction port of source of the gas and be communicated with discharge port with chamber; Between described control gas source air inlet and runner mouth, compound film sheet is housed.
The technical solution of the utility model can also be further perfect, as preferably,
Described compound film sheet has the basic unit of rubber, and the surface layer of one deck teflon is arranged above the basic unit.
As another kind of scheme, in the middle of having, described compound film sheet has the rubber basic unit of latticed braid, the surface layer of one deck teflon is arranged above the basic unit.
As preferably, the thickness of described compound film sheet is 1.5mm-2.5mm; Wherein the groundwork thickness of rubber is 1.2mm-2.2mm, and the surface thickness of teflon is 0.2mm-0.4mm.
As preferably, described compound film sheet is a dish type.
As preferably, described control gas source air inlet is arranged on the end cap of valve body, adopts screw to be connected between described end cap and compound film sheet and the valve body.
Therefore, the beneficial effects of the utility model are because the selector valve of new structure does not have spool, also not with being connected of cylinder column, therefore commutation, sealing and anticorrosive problem have thoroughly been solved, can not occur fully Korrosionsmedium exosmose or in the phenomenon of oozing, contamination resistance improves greatly, can both guarantee the validity that commutates, the accuracy of flow and the leakproofness of sealing under various bad working environments, and electricity can not increase extra burden to infusion pump simultaneously.It is simple, reliable that it has architecture, and corrosion resistance is strong, characteristics such as long service life.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Accompanying drawing 2 is a kind of profile schematic representation of compound film sheet.
Embodiment
Below by embodiment also in conjunction with the accompanying drawings, the technical solution of the utility model is further described in detail.
Embodiment: a kind of Pneumatic controlled valve core less liquid material reversal valve as shown in Figure 1, the chamber 3a, the 3b that are provided with runner 6 in the valve body 7 and link to each other with runner, valve body 7 is provided with the material feeding mouth 1 that is communicated with runner, be communicated with discharge port 2a, 2b with chamber 3a, 3b, the control gas source air inlet 5a, the 5b that link to each other with runner 6 are arranged on the end cap of valve body, between control gas source air inlet and the runner mouth compound film sheet 4a, 4b are housed, compound film sheet has the basic unit of rubber, and the surface layer of one deck teflon is arranged above the basic unit; In order to adapt to the needs of elevated pressures source of the gas, suitably improve the intensity of compound film sheet, the rubber basic unit that has latticed braid in the middle of the basic unit of compound film sheet can be processed into and have, the grid hole of braid is apart from being about 1 * 1mm, the fiber beam diameter is about 0.15mm, the surface layer that one deck teflon is arranged above the basic unit, the thickness of compound film sheet are 1.5mm-2.5mm; Wherein the groundwork thickness of rubber is 1.2mm-2.2mm, and the surface thickness of teflon is 0.2mm-0.4mm.Present embodiment is used for the resin and the commutation of curing agent liquid material of casting technique, and adopting groundwork thickness is the rubber layer of 1.3mm, and the surface thickness of teflon is 0.3mm.Adopt screw to be connected between described end cap and compound film sheet and the valve body.Described compound film sheet 4 is the combination of dish type (seeing shown in Figure 2) or plane and arc surface, and present embodiment adopts dish type.When employed medium non-corrosiveness, diaphragm can be a rubber layer, with ability of opening fast that improves diaphragm and the toughness that increases diaphragm, increases diastrophic number of times.
During use, the liquid material enters from material feeding mouth.When the pressure of control gas source air inlet 5a disappears, and the pressure of control gas source air inlet 5b is when raising, and mouth of runner 6 right-hand members sealed in compound film sheet 4b bending deflection left, and the mobile left jacking compound film sheet 4a of liquid material enters chamber 3a, and flows out from 2a; Otherwise when the pressure of control source of the gas 5a raise, mouth of runner 6 left ends sealed in compound film sheet 4a bending deflection to the right, and the mobile to the right jacking compound film sheet 4b of liquid material enters chamber 3b, and flows out from 2b.Realize the commutation of liquid material by conversion to the control bleed pressure.Therefore when using Korrosionsmedium, except the valve body material adopts resistant material such as polytetrafluoroethylplastic plastic or stainless steel, the corrosion resistance of compound film sheet and bending deflection number of times have determined the life-span of valve, and the pressure of the shape of compound film sheet and control source of the gas has determined the speed of response of valve.
Claims (7)
1. Pneumatic controlled valve core less liquid material reversal valve is characterized in that: contain valve body, the chamber that is provided with runner in the valve body and links to each other with runner, valve body are provided with the material feeding mouth that is communicated with runner, control the suction port of source of the gas and be communicated with discharge port with chamber; Between described control gas source air inlet and runner mouth, compound film sheet is housed.
2. Pneumatic controlled valve core less liquid material reversal valve according to claim 1 is characterized in that; Described compound film sheet has the basic unit of rubber, and the surface layer of one deck teflon is arranged above the basic unit.
3. Pneumatic controlled valve core less liquid material reversal valve according to claim 1 is characterized in that: have the rubber basic unit of latticed braid in the middle of described compound film sheet has, the surface layer of one deck teflon is arranged above the basic unit.
4. according to claim 1 or 2 or 3 described Pneumatic controlled valve core less liquid material reversal valves, it is characterized in that: the groundwork thickness of described compound film sheet is 1.2mm-2.2mm, and the surface thickness of teflon is 0.2mm-0.4mm.
5. according to claim 1 or 2 or 3 described Pneumatic controlled valve core less liquid material reversal valves, it is characterized in that: described compound film sheet is a dish type.
6. Pneumatic controlled valve core less liquid material reversal valve according to claim 4 is characterized in that: described compound film sheet is a dish type.
7. according to claim 1 or 2 or 3 described Pneumatic controlled valve core less liquid material reversal valves, it is characterized in that: described control gas source air inlet is arranged on the end cap of valve body, adopts screw to be connected between described end cap and compound film sheet and the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620107017 CN200940712Y (en) | 2006-08-24 | 2006-08-24 | Gas control valve coreless liquid change valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620107017 CN200940712Y (en) | 2006-08-24 | 2006-08-24 | Gas control valve coreless liquid change valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200940712Y true CN200940712Y (en) | 2007-08-29 |
Family
ID=38746889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620107017 Expired - Fee Related CN200940712Y (en) | 2006-08-24 | 2006-08-24 | Gas control valve coreless liquid change valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200940712Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508651A (en) * | 2014-10-09 | 2016-04-20 | A·雷蒙德有限合伙公司 | Shut-off body for valve and valve comprising said type of shut-off body |
-
2006
- 2006-08-24 CN CN 200620107017 patent/CN200940712Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508651A (en) * | 2014-10-09 | 2016-04-20 | A·雷蒙德有限合伙公司 | Shut-off body for valve and valve comprising said type of shut-off body |
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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 |