CN205618463U - Differential pressure combined valve - Google Patents
Differential pressure combined valve Download PDFInfo
- Publication number
- CN205618463U CN205618463U CN201620428298.0U CN201620428298U CN205618463U CN 205618463 U CN205618463 U CN 205618463U CN 201620428298 U CN201620428298 U CN 201620428298U CN 205618463 U CN205618463 U CN 205618463U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve port
- oilhole
- differential pressure
- side opening
- 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
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Abstract
The utility model discloses a differential pressure combined valve has solved the problem of differential pressure effect inefficiency, and its technical scheme main points are including valve body, disk seat, ejector pin, and the valve pocket of valve body is placed in to the disk seat with the ejector pin in, valve body female connection has the pot head of conflict disk seat to connect, the pot head connect and the disk seat between the sliding sleeve have a case, first valve port has been offered to the disk seat, the pot head connects and is equipped with the second valve port, the valve body is equipped with away the oilhole, case and pot head connect to be equipped with and drive movable valve element and support the spring that seals first valve port, the directional first valve port of ejector pin and take movable valve element compression spring, support in the case and seal first valve port, walk the oilhole and communicate with each other with the second valve port, back down first valve port in the ejector pin, first valve port, second valve port and walking feeds through between the oilhole each other, and the first side opening and second side opening that the oilhole was walked to the intercommunication is offered to the lateral wall that the pot head connects, walks oilhole, second side opening and the mutual normal open of second valve port, walking the oilhole and feeding through each other through first side opening and second valve port, the differential pressure combined valve who reaches has good differential pressure effect.
Description
Technical field
This utility model relates to differential pressure combined valve.
Background technology
Differential pressure valve chamber is moved up and down by the difference change band moving slide-bar of input fuel injection pressure signal, thus changes the aperture of valve, and one plays the regulation effect to oil pressure.
Now retrieving the Chinese patent document one differential pressure combined valve of Publication No. CN202520336U, its differential pressure effect efficiency is low.
Utility model content
The purpose of this utility model is to provide the differential pressure combined valve of a kind of differential pressure excellent effect.
Above-mentioned technical purpose of the present utility model has the technical scheme that
A kind of differential pressure combined valve, including valve body, valve seat, push rod, valve seat and push rod are placed in the valve pocket of valve body, valve body female thread connects the end bell and spigot joint having conflict valve seat, between end bell and spigot joint and valve seat, sliding sleeve has spool, valve seat offers the first valve port, and end bell and spigot joint offers the second valve port, and valve body offers away oilhole；Being provided with, between spool and end bell and spigot joint, the spring driving spool to support envelope the first valve port, push rod points to the first valve port and and band movable valve plug compression spring；
When spool supports envelope the first valve port, walk oilhole and the second valve port communicates；
When push rod backs down the first valve port, the first valve port, the second valve port and walking is interconnected between oilhole.
By using technique scheme, the first valve port realizes sealing under the action of the spring, walks oilhole and the second valve port connects rodless cavity and the rod chamber of oil cylinder respectively, it is achieved the pressurize action of oil cylinder.After the first valve port opened by push rod, the fluid in rod chamber enters rodless cavity from walking oilhole through the second valve port, it is achieved quickly differential pressure.
It is also preferred that the left the sidewall of end bell and spigot joint offers connection walks the first side opening and second side opening of oilhole, walk oilhole, the second side opening and the mutual normal open of the second valve port；Walk oilhole to be interconnected by the first side opening and the second valve port.
By using technique scheme, after the first valve port opened by push rod, the first valve port, the first side opening, walk oilhole, the second side opening and the second valve port and be interconnected, it is achieved realize quick differential pressure action.
It is also preferred that the left push rod and sliding in valve body, one end extruded by fluid of push rod offers axial processing screw hole, and described processing screw hole is provided with capping.
By using technique scheme, processing screw hole is arranged on axially, it is simple to clamping, the turn-milling cutting to push rod.When processing screw hole is extruded by fluid so that fluid produces pressure to the sidewall in processing screw hole so that the pressure of fluid is difficult to concentrate on the axial of push rod so that promote the speed of push rod to slow down.By capping so that oil pressure can act on the end of push rod, reduce the effect to the pressure in processing screw hole of the second floor fluid, accelerate the speed so that promoting push rod, it is achieved quickly differential pressure action.
It is also preferred that the left described capping is circular, and closure threads is sealed in processing screw hole.
By using technique scheme, when the push rod after threaded stable connection, and some uses needs further turn-milling cutting to safeguard after wearing and tearing, capping of can outwarding winding, it is simple to the processing to push rod.
Accompanying drawing explanation
Fig. 1 is the section one of embodiment differential pressure combined valve, and display spool seals the first valve port；
Fig. 2 is the A portion enlarged drawing in Fig. 1；
Fig. 3 is the section two of embodiment differential pressure combined valve, and display spool opens the first valve port；
Fig. 4 is the B portion enlarged drawing in Fig. 3.
In figure: 1, valve body；2, push rod；3, valve seat；4, spool；5, spring；6, end bell and spigot joint；71, oilhole is walked；72, the first valve port；73, the second valve port；74, the first side opening；75, the first side opening；81, capping；82, processing screw hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Embodiment: differential pressure combined valve, as shown in Figure 2, Figure 4 shows, the valve body 1 that metal is made, it is drilled with longitudinal and transverse and the most staggered valve pocket by drilling machine in valve body 1.Slide in the vertical valve pocket in left side and be inserted with push rod 2, push rod 2 is sealed in vertical valve pocket by sealing ring sliding, and the upper end of push rod 2 is provided with joint, this joint is led to oil can be ejected downwards by top cover, push rod 2 has axial processing screw hole 82 towards the upper end of joint, the threaded capping 81 having circle in the upper surface of this processing screw hole 82, capping 81 is by smooth and smooth for the upper surface of push rod 2.
As shown in Figures 1 and 2, the vertically lower section of push rod 2 is sequentially provided with valve seat 3, spool 4 and end bell and spigot joint 6, valve seat 3 is conflicted between the circular collar and end bell and spigot joint 6 of valve body 1, and valve seat 3 offers the first vertical valve port 72, and the first valve port 72 is identical with valve pocket and push rod 2 can be inserted into the first valve port 72；End bell and spigot joint 6 offers the second vertical valve port 73, and the second valve port 73 is placed in the lower section of the first valve port 72；And sliding has spool 4, spool 4 to be placed in valve seat 3 and end bell and spigot joint 6 inside between valve seat 3 and end bell and spigot joint 6；The sidewall of end bell and spigot joint 6 has the first side opening 74 and the second side opening 75 of vertical direction, and the first side opening 74 is placed in the top of the second side opening 75；Spool 4 and end bell and spigot joint 6 between conflict have spring 5, under the elastic force effect of spring 5, the first valve port 72 is stopped by spool 4 with the first side opening 74, it is achieved valve body 1 walk discharge orifice, the second side opening 75 and connection of the second valve port 73.
Shown in Fig. 3, when top under push rod 2 is by the fluid of upper end, spool 4 moves down, and the first valve port 72 and the first side opening 74, walks discharge orifice and opens, and second valve port the 73, second side opening 75 with walk discharge orifice and also open, it is achieved quick differential pressure action.
Claims (4)
1. a differential pressure combined valve, including valve body (1), valve seat (3), push rod (2), valve seat (3) and push rod (2) are placed in the valve pocket of valve body (1), valve body (1) female thread connects the end bell and spigot joint (6) having conflict valve seat (3), between end bell and spigot joint (6) and valve seat (3), sliding sleeve has spool (4), it is characterized in that, valve seat (3) offers the first valve port (72), end bell and spigot joint (6) offers the second valve port (73), and valve body (1) offers away oilhole (71)；Being provided with the spring (5) driving spool (4) to support envelope the first valve port (72) between spool (4) and end bell and spigot joint (6), push rod (2) points to the first valve port (72) and and band movable valve plug (4) compression spring (5)；
When spool (4) supports envelope the first valve port (72), walk oilhole (71) and communicate with the second valve port (73)；
When push rod (2) backs down the first valve port (72), the first valve port (72), the second valve port (73) and walking is interconnected between oilhole (71).
Differential pressure combined valve the most according to claim 1, it is characterized in that, the sidewall of end bell and spigot joint (6) offers connection and walks the first side opening (74) and second side opening (75) of oilhole (71), walks oilhole (71), the second side opening (75) and the second valve port (73) mutually normal open；Walk oilhole (71) to be interconnected with the second valve port (73) by the first side opening (74).
Differential pressure combined valve the most according to claim 2, it is characterized in that, push rod (2) and valve body (1) interior sliding, one end extruded by fluid of push rod (2) offers axial processing screw hole (82), and described processing screw hole (82) is provided with capping (81).
Differential pressure combined valve the most according to claim 3, it is characterised in that described capping (81) is circular, and capping (81) thread seal is in processing screw hole (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428298.0U CN205618463U (en) | 2016-05-12 | 2016-05-12 | Differential pressure combined valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428298.0U CN205618463U (en) | 2016-05-12 | 2016-05-12 | Differential pressure combined valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205618463U true CN205618463U (en) | 2016-10-05 |
Family
ID=57026325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620428298.0U Expired - Fee Related CN205618463U (en) | 2016-05-12 | 2016-05-12 | Differential pressure combined valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205618463U (en) |
-
2016
- 2016-05-12 CN CN201620428298.0U patent/CN205618463U/en not_active Expired - Fee Related
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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: 20161005 Termination date: 20210512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |