CN204592387U - A kind of stainless steel pneumatic diaphragm valve - Google Patents
A kind of stainless steel pneumatic diaphragm valve Download PDFInfo
- Publication number
- CN204592387U CN204592387U CN201520287977.6U CN201520287977U CN204592387U CN 204592387 U CN204592387 U CN 204592387U CN 201520287977 U CN201520287977 U CN 201520287977U CN 204592387 U CN204592387 U CN 204592387U
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- piston shaft
- seal space
- air cylinder
- demarcation strip
- stainless steel
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Abstract
The utility model provides a kind of new type stainless steel. corrosion resistance pneumatic diaphragm valve, aim to provide that a kind of structure is simple, the stainless steel pneumatic diaphragm valve of low cost, convenient operation, its main technical points: described cylinder comprises the air cylinder base and cylinder upper cover that adopt stainless steel to manufacture; Air cylinder base and cylinder upper cover complement each other to form seal space, air cylinder base has been wholely set support, and described support casing is located on piston shaft, and support is fixedly connected with valve body by bolt, described support is provided with the chute moved up and down for spool, and spool is placed in chute; The top of piston shaft extends up through in air cylinder base to described seal space, piston shaft has been wholely set demarcation strip, demarcation strip is separated into upper seal space and lower seal space seal space, the outer side wall of demarcation strip and the interior survey wall of air cylinder base fit tightly, upper seal space is provided with Compress Spring, one end and the demarcation strip of Compress Spring are inconsistent, the other end and cylinder upper cover inconsistent.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of stainless steel pneumatic diaphragm valve.
Background technique
Pneumatic diaphragm valve is a kind of more common automatic-control diaphragm valve, it mainly includes valve body and piston shaft, piston shaft is installed on the inside of valve body, the bottom of piston shaft is provided with spool, spool is connected with the diaphragm that control valve is opened or closed, the top of piston shaft is provided with the cylinder that piston shaft moves up and down, its working principle: carry out control cylinder work by the opening and closing of gas circuit, thus driving piston shaft to move up and down, move up and down band movable valve plug and the diaphragm that is connected with spool of piston shaft move up and down and play and open or the object of throttle down.
Traditional pneumatic diaphragm valve can not meet industry needs and daily life needs, and part often can be made to be corroded; Now pneumatic diaphragm valve commercially is all made up of metallic material, and the time uses to have grown and gets rusty easily, and air cylinder structure is complicated simultaneously, and manufacture cost is high, is difficult to operation.
Model utility content
For existing technical deficiency, the utility model provides that a kind of structure is simple, the stainless steel pneumatic diaphragm valve of low cost, convenient operation.
To achieve these goals, the technological scheme that the utility model is taked is: a kind of stainless steel pneumatic diaphragm valve, include valve body and piston shaft, piston shaft is installed on the inside of valve body, the bottom of piston shaft is provided with spool, described spool is connected with the diaphragm that control valve is opened or closed, the top of described piston shaft is provided with the cylinder ordering about piston shaft and move up and down, and described cylinder comprises the air cylinder base and cylinder upper cover that adopt stainless steel to manufacture; Described air cylinder base and cylinder upper cover complement each other to form seal space, described air cylinder base has been wholely set support, and described support casing is located on piston shaft, and described support is fixedly connected with valve body by bolt, described support is provided with the chute moved up and down for spool, and described spool is placed in chute; The top of described piston shaft extends up through in air cylinder base to described seal space, described piston shaft has been wholely set demarcation strip, described demarcation strip is separated into upper seal space and lower seal space seal space, the outer side wall of described demarcation strip and the interior survey wall of air cylinder base fit tightly, described upper seal space is provided with Compress Spring, one end and the demarcation strip of described Compress Spring are inconsistent, the other end and cylinder upper cover inconsistent.
The utility model is arranged further: the top of described cylinder upper cover arranges bossed transparent cap, and described transparent cap adopts transparent plastic molding and forming.
The utility model is arranged further: the edge section of described demarcation strip is bent upwards and forms annular stop portion, and described Compress Spring is as in annular stop portion.
The outer side wall of described demarcation strip is provided with the annular seal groove caved inward, and is provided with seal ring in described annular seal groove, and the madial wall of described seal ring and air cylinder base fits tightly.
The beneficial effects of the utility model: cylinder is fixed on above valve body by support, support and air cylinder base are wholely set simultaneously, make cylinder fixing more firm, can move up and down by stabilized driving piston shaft, drive the spool and diaphragm that are fixedly connected with piston shaft, control valve is opened or is closed, support is provided with the chute slided for spool simultaneously, spool is moved up and down more stable, the utility model structure is simple, easy to operate; Described cylinder comprises the air cylinder base and cylinder upper cover that adopt stainless steel to manufacture, make component not by dielectric corrosion, spring is provided with in the upper seal space of cylinder, moved up and down by the spring control piston axle that to match with cylinder diaphragm, can move up and down by stability contorting piston shaft, and adopt diaphragm to eliminate packing seal structure, reduce cost; And the phenomenon that medium leaks outside can not be produced.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of stainless steel pneumatic diaphragm valve of the utility model;
Fig. 2 is the sectional view in AA direction in Fig. 1;
Fig. 3 is the structural representation of piston shaft in Fig. 2.
In figure 1, valve body; 2, piston shaft; 21, demarcation strip; 211, annular stop portion; 212, annular seal groove; 3, spool; 4, diaphragm; 5, cylinder; 51, air cylinder base; 52, cylinder upper cover; 53, support; 531, chute; 6, Compress Spring; 7, transparent cap.
Embodiment
With reference to accompanying drawing 1 to Fig. 3, a kind of stainless steel pneumatic diaphragm valve of the utility model embodiment is described in further details.
A kind of stainless steel pneumatic diaphragm valve, include valve body 1 and piston shaft 2, piston shaft 2 is installed on the inside of valve body 1, the bottom of piston shaft 2 is provided with spool 3, described spool 3 is connected with the diaphragm 4 that control valve is opened or closed, eliminates packing seal structure, reduce cost, and the phenomenon that medium leaks outside can not be produced, the top of described piston shaft 2 is provided with the cylinder 5 ordering about piston shaft 2 and move up and down, described cylinder 5 comprises the air cylinder base 51 and cylinder upper cover 52 that adopt stainless steel to manufacture, wherein air cylinder base 51 and cylinder upper cover 52 all adopt 65Mn steel to manufacture, obtain component not by dielectric corrosion, described air cylinder base 51 and cylinder upper cover 52 complement each other to form seal space, described air cylinder base 51 has been wholely set support 53, described support 53 is set on piston shaft 2, described support 53 is fixedly connected with valve body 1 by bolt, make cylinder 5 fixing more firm, can move up and down by stabilized driving piston shaft 2, drive the spool 3 and diaphragm 4 that are fixedly connected with piston shaft 2, control valve is opened or is closed, described support 53 is provided with the chute 531 moved up and down for spool 3, described spool 3 is placed in chute 531, spool 3 is moved up and down more stable, the utility model structure is simple, easy to operate, the top of described piston shaft 2 extends up through air cylinder base 51 in described seal space, described piston shaft 2 has been wholely set demarcation strip 21, described demarcation strip 21 is separated into upper seal space and lower seal space seal space, the outer side wall of described demarcation strip 21 and the interior survey wall of air cylinder base 51 fit tightly, described upper seal space is provided with Compress Spring 6, one end and the demarcation strip 21 of described Compress Spring 6 are inconsistent, the other end and cylinder upper cover 52 inconsistent, moved up and down by the spring control piston axle 2 that to match with cylinder 5 diaphragm, can move up and down by stability contorting piston shaft 2.
The top of described cylinder upper cover 52 arranges bossed transparent cap 7, and described transparent cap 7 adopts the molding and forming of PC transparent plastic, by situation in transparent cap 7 energy clear view to seal space.
The edge section of described demarcation strip 21 is bent upwards and forms annular stop portion 211, described Compress Spring 6 is as in annular stop portion 211, be convenient to Compress Spring 6 install, prevent Compress Spring 6 from compressing or stretching process offsets, can stability contorting valve opening or closedown, the outer side wall of described demarcation strip 21 is provided with the annular seal groove 212 caved inward, seal ring is provided with in described annular seal groove 212, the madial wall of described seal ring and air cylinder base 51 fits tightly, effectively seal space can be separated into upper seal space and lower seal space, instantly when seal space air pressure increases, effectively can ensure that on driven plunger axle 2, demarcation strip 21 moves upward.
Claims (4)
1. a stainless steel pneumatic diaphragm valve, include valve body and piston shaft, piston shaft is installed on the inside of valve body, the bottom of piston shaft is provided with spool, described spool is connected with the diaphragm that control valve is opened or closed, the top of described piston shaft is provided with the cylinder ordering about piston shaft and move up and down, and it is characterized in that: described cylinder comprises the air cylinder base and cylinder upper cover that adopt stainless steel to manufacture; Described air cylinder base and cylinder upper cover complement each other to form seal space, described air cylinder base has been wholely set support, and described support casing is located on piston shaft, and described support is fixedly connected with valve body by bolt, described support is provided with the chute moved up and down for spool, and described spool is placed in chute;
The top of described piston shaft extends up through in air cylinder base to described seal space, described piston shaft has been wholely set demarcation strip, described demarcation strip is separated into upper seal space and lower seal space seal space, the outer side wall of described demarcation strip and the interior survey wall of air cylinder base fit tightly, described upper seal space is provided with Compress Spring, one end and the demarcation strip of described Compress Spring are inconsistent, the other end and cylinder upper cover inconsistent.
2. a kind of stainless steel pneumatic diaphragm valve according to claim 1, is characterized in that: the top of described cylinder upper cover arranges bossed transparent cap, and described transparent cap adopts transparent plastic molding and forming.
3. a kind of stainless steel pneumatic diaphragm valve according to claim 2, is characterized in that: the edge section of described demarcation strip is bent upwards and forms annular stop portion, and described spring is as in annular stop portion.
4. a kind of stainless steel pneumatic diaphragm valve according to claim 1 or 2 or 3, it is characterized in that: the outer side wall of described demarcation strip is provided with the annular seal groove caved inward, be provided with seal ring in described annular seal groove, the madial wall of described seal ring and air cylinder base fits tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520287977.6U CN204592387U (en) | 2015-05-05 | 2015-05-05 | A kind of stainless steel pneumatic diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520287977.6U CN204592387U (en) | 2015-05-05 | 2015-05-05 | A kind of stainless steel pneumatic diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204592387U true CN204592387U (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520287977.6U Active CN204592387U (en) | 2015-05-05 | 2015-05-05 | A kind of stainless steel pneumatic diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204592387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087251A (en) * | 2022-01-24 | 2022-02-25 | 烟台市科瑞琪智能科技有限公司 | Pressure induction pneumatic servo control valve |
-
2015
- 2015-05-05 CN CN201520287977.6U patent/CN204592387U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087251A (en) * | 2022-01-24 | 2022-02-25 | 烟台市科瑞琪智能科技有限公司 | Pressure induction pneumatic servo control valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |