CN103216651B - A kind of fluid control device - Google Patents
A kind of fluid control device Download PDFInfo
- Publication number
- CN103216651B CN103216651B CN201310155812.9A CN201310155812A CN103216651B CN 103216651 B CN103216651 B CN 103216651B CN 201310155812 A CN201310155812 A CN 201310155812A CN 103216651 B CN103216651 B CN 103216651B
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- China
- Prior art keywords
- black box
- valve
- spring
- sealing
- seal ring
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- 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.)
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- Safety Valves (AREA)
Abstract
The invention belongs to field of fluid control, be specifically related to the automatic controller that convection cell path carries out switching.Technological scheme of the present invention has import and outlet in body; Have valve in body, have black box in valve, black box one end connects or contact slide assembly, and the other end connects or contact holds down assembly; Good effect of the present invention is: sealing configuration adopts improved check valve, both ensure that the sealing pair sealing reliability between black box and body, and seal ring can not be hurt in moving process, therefore extends working life; Valve fast response time, can realize fast conducting; Sealing place has the scope of required precision little, easily ensures, processing is got up simple.In addition, the seal ring of sulfuration on black box and valve coordinate can reach best sealing effect, the more important thing is: the adjustable structure easily of the pretightening force employing of spring, enables this product be applicable to different operating modes, reach the object of one-object-many-purposes.
Description
Technical field
The invention belongs to field of fluid control, be specifically related to the automatic controller that convection cell path carries out switching.
Background technique
In liquid control system, relate to the operation some path being needed to switching frequently, such operation relies on manpower to complete and certainly can not complete, and control and regulating system automatically must be relied on could to realize its effect.
The like product of present stage, the structure application of sliding type is more, is arrange slide bar in cavity, slide bar there is seal ring realize its sealing, slide bar straight line motion, utilizes the difference in radial fit gap between slide bar and housing, realizes the Trimmed sums conducting of pipeline simultaneously.
Said structure, during slip, seal ring is easily hurt by the seamed edge of the joint of cross hole, causes product failure or destruction, directly affects product usability and working life; And because closed hole is elongated hole structure, stroke is long, require that the matching part size of closed hole is partially long, have the dimensional range of required precision large, cause difficulty of processing large.And this sliding structure is when slide bar carries out axial motion, surface friction drag is relatively large, directly has influence on the control accuracy of product.
In addition, the product of present stage, narrow application range, makes product type parameter numerous, and cost of production remains high.
Summary of the invention
The object of this invention is to provide that a kind of precision is high, good reliability, the life-span is long, difficulty of processing is little fluid control device, to make up the deficiency of prior art.
The present invention is the technological scheme realizing object employing:
Fluid control device, comprises body, has import and outlet in body; It is characterized in that: have valve in body, have black box in valve, black box one end connects or contact slide assembly, and the other end connects or contact holds down assembly;
Valve sectional shape is taper; Black box has seal ring, and seal ring sulfuration is in the annular groove of black box;
Hold down assembly and comprise spring footstock and spring pedestal, between spring footstock and spring pedestal, have pressure adjusting spring; Be provided with adjusting axle to contact with spring pedestal, adjusting axle and connecting sleeve screw-thread fit, carry out the pretightening force of Regulation spring by the axial displacement of adjusting axle.
Optimize, sliding assembly comprises sealing seat and sensing piston, wherein senses the pressure of piston perception sensing mouth.
Good effect of the present invention is: sealing configuration adopts improved check valve, both ensure that the sealing pair sealing reliability between black box and body, and seal ring can not be hurt in moving process, therefore extends working life; Valve fast response time, can realize fast conducting; Sealing place has the scope of required precision little, easily ensures, processing is got up simple.In addition, the seal ring of sulfuration on black box and valve coordinate can reach best sealing effect, the more important thing is: the adjustable structure easily of the pretightening force employing of spring, enables this product be applicable to different operating modes, reach the object of one-object-many-purposes.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the valve arrangement figure of another embodiment of the present invention.
Fig. 3 is the structural representation of black box.
Embodiment
Embodiment 1:
See Fig. 1, this product comprises piston body 1, seal ring 2, sensing piston 3, seal ring 4, sealing seat 5, body 6, black box 7, spring footstock 8, connecting sleeve 9, pressure adjusting spring 10, spring pedestal 11, adjusting axle 12, locking nut 13, seal ring 14, seal ring 15.In the annular groove of wherein black box, sulfuration has seal ring 16.
The pressure of detected fluid, be passed to sensing piston 3 through sensing mouth 100 place of piston body 1, be passed to again the left end of black box 7 by sealing seat 5, the active force of pressure adjusting spring 10 is passed to the right-hand member of black box 7 by spring footstock 8.The size of spring force regulates by the position screwing adjusting axle 12.In restriction pressure range, the spring force that black box 7 right-hand member is subject to is greater than the fluid sensing power that left end is subject to, and now pilot valve is in closed condition, import 101, outlet 102 not conductings.When the sensing mouth 100 place pressure of piston body 1 is elevated to setting high pressure, pressure is passed to sensing piston 3, black box 7 is passed to again by sealing seat 5, black box 7 left end is subject to fluid sensing power and is greater than the spring force that right-hand member is subject to, black box 7 moves to right-hand member, sealing pair between black box 7 and body 6 is opened, import 101, outlet 102 conductings immediately, fluid rapidly by import 101 through exporting 102 discharges.
Embodiment 2:
The pressure of detected fluid, be passed to sensing piston 3 through sensing mouth 100 place of piston body 1, be passed to again the left end of black box 7 by sealing seat 5, the active force of pressure adjusting spring 10 is passed to the right-hand member of black box 7 by spring footstock 8.The size of spring force regulates by the position screwing adjusting axle 12.In restriction pressure range, the spring force that black box 7 right-hand member is subject to is less than left end and is subject to fluid sensing power, and now pilot valve is in closed condition, import 101, outlet 102 not conductings.When the sensing mouth 100 place pressure of piston body 1 is reduced to setting low pressure, pressure is passed to sensing piston 3, black box 7 is passed to again by sealing seat 5, black box 7 left end is subject to fluid sensing power and is less than the spring force that right-hand member is subject to, black box 7 moves to left end, sealing pair between black box 7 and body 6 is opened, import 101, outlet 102 conductings immediately, fluid rapidly by import 101 through exporting 102 discharges.
Claims (1)
1. fluid control device, comprises body, has import and outlet in body; It is characterized in that: have valve in body, have black box in valve, black box one end connects or contact slide assembly, and the other end connects or contact holds down assembly;
Valve sectional shape is taper; Black box has seal ring, and seal ring sulfuration is in the annular groove of black box;
Hold down assembly and comprise spring footstock and spring pedestal, between spring footstock and spring pedestal, have pressure adjusting spring; Be provided with adjusting axle to contact with spring pedestal, adjusting axle and connecting sleeve screw-thread fit, connecting sleeve is connected with body; The pretightening force of Regulation spring is carried out by the axial displacement of adjusting axle;
Sliding assembly comprises sealing seat and sensing piston, wherein senses the pressure of piston perception sensing mouth;
Hydrodynamic pressure is handed to sensing piston through sensing mouth, is passed to black box again by sealing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310155812.9A CN103216651B (en) | 2013-04-28 | 2013-04-28 | A kind of fluid control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310155812.9A CN103216651B (en) | 2013-04-28 | 2013-04-28 | A kind of fluid control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103216651A CN103216651A (en) | 2013-07-24 |
| CN103216651B true CN103216651B (en) | 2015-10-07 |
Family
ID=48814701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310155812.9A Active CN103216651B (en) | 2013-04-28 | 2013-04-28 | A kind of fluid control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103216651B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201145068Y (en) * | 2007-11-13 | 2008-11-05 | 宜宾三江机械有限责任公司 | Pressure choosing valve |
| CN201502761U (en) * | 2009-08-14 | 2010-06-09 | 宜宾三江机械有限责任公司 | Pressure reducing valve with composite valve |
| CN201982747U (en) * | 2010-12-31 | 2011-09-21 | 宜宾三江机械有限责任公司 | Automatic regulating valve for pressure and flow |
| CN203214996U (en) * | 2013-04-28 | 2013-09-25 | 宜宾三江机械有限责任公司 | Fluid control device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03149473A (en) * | 1989-11-07 | 1991-06-26 | Akira Sasaki | Automatic pressure control valve device with temperature correcting function |
| CH683363A5 (en) * | 1991-02-27 | 1994-02-28 | Dusko Maravic | Flow control valve. |
-
2013
- 2013-04-28 CN CN201310155812.9A patent/CN103216651B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201145068Y (en) * | 2007-11-13 | 2008-11-05 | 宜宾三江机械有限责任公司 | Pressure choosing valve |
| CN201502761U (en) * | 2009-08-14 | 2010-06-09 | 宜宾三江机械有限责任公司 | Pressure reducing valve with composite valve |
| CN201982747U (en) * | 2010-12-31 | 2011-09-21 | 宜宾三江机械有限责任公司 | Automatic regulating valve for pressure and flow |
| CN203214996U (en) * | 2013-04-28 | 2013-09-25 | 宜宾三江机械有限责任公司 | Fluid control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103216651A (en) | 2013-07-24 |
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