CN204592461U - A kind of piston type hydraulic control valve - Google Patents
A kind of piston type hydraulic control valve Download PDFInfo
- Publication number
- CN204592461U CN204592461U CN201520285499.5U CN201520285499U CN204592461U CN 204592461 U CN204592461 U CN 204592461U CN 201520285499 U CN201520285499 U CN 201520285499U CN 204592461 U CN204592461 U CN 204592461U
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- CN
- China
- Prior art keywords
- piston
- valve
- valve body
- hydraulic control
- described valve
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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.)
- Expired - Fee Related
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Abstract
A kind of piston type hydraulic control valve of the utility model, the valve seat piston piston that it comprises valve body piston, be located at valve gap piston above described valve body piston, be positioned at described valve body piston inside, bottom piston piston is provided with bottom described valve body piston, described bottom piston piston fixedly mounts axle bed piston piston, above described axle bed piston piston, concentric is provided with valve shaft piston piston, and described valve shaft piston piston is connected to one end of indicating arm piston; Described valve gap piston, valve body piston joint clamping connection cylinder piston, establish leather bucket and be located at the leather cup pressing plate piston above described leather bucket in bottom described cylinder piston; Be provided with valve disc piston below described cylinder piston, between described valve disc piston and valve seat piston piston, be provided with O type circle piston.The utility model structure maneuverability, adjustment is swift in response.Valve body and main parts size thereof adopt the antirust, anti-corrosive materials such as bronze or spheroidal graphite cast iron, and long service life, performance is more superior.
Description
Technical field
The utility model relates to valve technology field, is specifically related to a kind of piston type hydraulic control valve.
Background technique
Hydraulic control valve take pipe medium pressure as power, carries out the valve opening and closing, regulate.It is made up of a main valve and conduit, needle-valve, ball valve and the pressure gauge etc. set up, according to the object of use, the difference in function place, can develop into remote control float valve, reduction valve, buffer valve, flow dontroller, Decompression valves, hydro electric brake control valve, emergency shut-in valve etc.Pilot valve action with the liquid level of medium and the change of pressure, because pilot valve kind is a lot, can be used alone or severally to combinationally use, and main valve just can be made to obtain to carry out separately water level and hydraulic pressure and flow etc. and the function of compound adjustment.But the similar stop valve of valve body of main valve, during valve wide open, its pressure loss is more much bigger than other valves, and each aperture loss coefficient is close with full-shut position, increases severely, and valve aperture is larger more remarkable.Have the valve of above-mentioned characteristic, accelerate in the action close to flap, the impact of water hammer easily occurs, during close to full cut-off, valve event is more slowly better.
Summary of the invention
It is power that the purpose of this utility model is to provide more than one downstream pressure difference △ P, is regulated by hydraulic automatism completely, thus main valve valve disc is opened completely or closes or be in the piston type hydraulic control valve of adjustment state completely.
In order to solve the problem existing for background technique, the utility model is by the following technical solutions: a kind of piston type hydraulic control valve, the valve seat 10 that it comprises valve body 7, be located at valve gap 3 above described valve body 7, be positioned at described valve body 7 inside, bottom 14 is provided with bottom described valve body 7, described bottom 14 fixedly mounts axle bed 13, above described axle bed 13, concentric is provided with valve shaft 12, and described valve shaft 12 is connected to one end of indicating arm 1;
Described valve gap 3, valve body 7 joint clamping connection cylinder 4, the leather cup pressing plate 5 established leather cup 6 in bottom described cylinder 4 and be located at above described leather cup 6;
Be provided with valve disc 8 below described cylinder 4, be provided with O type circle 9 between described valve disc 8 and valve seat 10, the bottom of described O type circle 9 is provided with O type circle pressing plate 11.
Further, described indicating arm 1 and the sheathed stuffing box 2 in valve gap 3 joint.
Further, described leather cup 6 is sheathed on the upper end of described valve shaft 12.
Further, the top of the water intake inside of described valve body 7 is provided with baffle plate, and the below of water outlet inside is provided with baffle plate.
The utility model has following beneficial effect: the utility model utilizes upstream and downstream pressure difference △ P to be power, controlled by pilot valve, make piston hydraulic pressure formula differential operation, regulated by hydraulic automatism completely, thus main valve valve disc is opened completely or closes completely or be in adjustment state.Structure maneuverability, adjustment is swift in response.Valve body and main parts size thereof adopt the antirust, anti-corrosive materials such as bronze or spheroidal graphite cast iron, and long service life, performance is more superior.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Description of reference numerals: indicating arm 1, stuffing box 2, valve gap 3, cylinder 4, leather cup pressing plate 5, leather cup 6, valve body 7, valve disc 8, O type circle 9, valve seat 10, O type circle pressing plate 11, valve shaft 12, axle bed 13, bottom 14.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in more detail.
A kind of piston type hydraulic control valve of the utility model, as shown in Figure 1, the valve seat 10 that it comprises valve body 7, be located at valve gap 3 above described valve body 7, be positioned at described valve body 7 inside, bottom 14 is provided with bottom described valve body 7, described bottom 14 fixedly mounts axle bed 13, be the valve shaft 12 of the vertical unsettled setting of concentric above described axle bed 13, described valve shaft 12 is fixedly connected on the lower end of indicating arm 1; And the upper end of described indicating arm 1 is passed valve gap 3 and is attached thereto, the outside of described valve gap 3, described indicating arm 1 is provided with stuffing box 2 with the joint of valve gap 3.
Described valve gap 3, valve body 7 joint clamping connection cylinder 4, the leather cup pressing plate 5 established leather cup 6 in bottom described cylinder 4 and be located at above described leather cup 6, described leather cup 6 is sheathed on the upper end of described valve shaft 12.
Be provided with valve disc 8 below described cylinder 4, be provided with O type circle 9 between described valve disc 8 and valve seat 10, the bottom of described O type circle 9 is provided with O type circle pressing plate 11.
The inside upper and lower of described valve body 7 is communicated with design, and right and left is not directly communicated with, and above its water intake inside, be provided with baffle plate, the below of water outlet inside is provided with baffle plate.
When the press water in control room above liquid enters piston is discharged to air or down stream low pressure zones, to act on bottom valve disc and force value below piston is just greater than the force value of top, so main valve valve disc to be shifted onto the position of opening completely; When entering the press water above piston in control room and can not being discharged to air or down stream low pressure zones, the force value acted on above piston is just greater than the force value of below, so main valve valve disc will be pressed onto the position closed completely; When the force value in control room above piston is in the middle of inlet pressure and outlet pressure, main valve valve disc is just in adjustment state, and what its adjusted position depended on needle-valve in conduit system and adjustable pilot valve jointly controls effect.The little valve port of himself can be opened greatly or be turned down to adjustable pilot valve by the outlet pressure in downstream and with its change, thus change the force value in control room above piston, the adjusted position of controlling party valve valve disc.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, other amendments that those of ordinary skill in the art make the technical solution of the utility model or equivalently to replace, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of right of the present utility model.
Claims (4)
1. a piston type hydraulic control valve, it comprises valve body (7), is located at the valve gap (3) of described valve body (7) top, is positioned at the inner valve seat (10) of described valve body (7), it is characterized in that, described valve body (7) bottom is provided with bottom (14), described bottom (14) fixedly mounts axle bed (13), described axle bed (13) top concentric is provided with valve shaft (12), and described valve shaft (12) is connected to one end of indicating arm (1);
Described valve gap (3), valve body (7) joint clamping connection cylinder (4), establish leather cup (6) in described cylinder (4) bottom and be located at the leather cup pressing plate (5) of described leather cup (6) top;
Described cylinder (4) below is provided with valve disc (8), and be provided with O type circle (9) between described valve disc (8) and valve seat (10), the bottom of described O type circle (9) is provided with O type circle pressing plate (11).
2. a kind of piston type hydraulic control valve according to claim 1, is characterized in that, described indicating arm (1) and the sheathed stuffing box in valve gap (3) joint (2).
3. a kind of piston type hydraulic control valve according to claim 1, is characterized in that, described leather cup (6) is sheathed on the upper end of described valve shaft (12).
4. a kind of piston type hydraulic control valve according to claim 1, is characterized in that, the top of the water intake inside of described valve body (7) is provided with baffle plate, and the below of water outlet inside is provided with baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520285499.5U CN204592461U (en) | 2015-05-06 | 2015-05-06 | A kind of piston type hydraulic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520285499.5U CN204592461U (en) | 2015-05-06 | 2015-05-06 | A kind of piston type hydraulic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204592461U true CN204592461U (en) | 2015-08-26 |
Family
ID=53928613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520285499.5U Expired - Fee Related CN204592461U (en) | 2015-05-06 | 2015-05-06 | A kind of piston type hydraulic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204592461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763830A (en) * | 2015-05-06 | 2015-07-08 | 江苏融通阀门机械有限公司 | Piston type hydraulic control valve |
-
2015
- 2015-05-06 CN CN201520285499.5U patent/CN204592461U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763830A (en) * | 2015-05-06 | 2015-07-08 | 江苏融通阀门机械有限公司 | Piston type hydraulic control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20160506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |