CN208518991U - A kind of overflow valve - Google Patents
A kind of overflow valve Download PDFInfo
- Publication number
- CN208518991U CN208518991U CN201821101839.4U CN201821101839U CN208518991U CN 208518991 U CN208518991 U CN 208518991U CN 201821101839 U CN201821101839 U CN 201821101839U CN 208518991 U CN208518991 U CN 208518991U
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- valve body
- main valve
- pressure
- plug
- pilot
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Abstract
The utility model discloses a kind of overflow valves, including main valve body, main valve plug, pilot valve body and poppet valve core, main valve plug is set in main valve body, poppet valve core is set in pilot valve body, main valve body is vertical with pilot valve body to be fixedly connected, and main valve seat is arranged in main valve plug side, connects reset spring on main valve seat, spring base is arranged in poppet valve core side, the other side connects guide valve seat, and compression spring is arranged on spring base, and regulating hand wheel of pressure is arranged in pilot valve body side, oil inlet and oil return opening are opened up on main valve body, and oil-control pipeline is set between main valve body and pilot valve body.Regulating hand wheel of pressure and spring base interconnection are integrally formed, overcome frictional force that spring base is adjusted to pilot valve body root using the strength of regulating hand wheel of pressure, pressure moment is down to the size that client needs in this way, structure is simple, antihypertensive effect is obvious, good seal meets the demand that client is adjusted pressure under special operation condition, provides better choice in pressure adjustment to equipment such as hydraulic systems.
Description
Technical field
The utility model belongs to Hydraulic Field more particularly to a kind of overflow valve.
Background technique
Overflow valve in hydraulic control valve is a kind of Hydraulic Elements critically important in pressure valve, plays and adjusts hydraulic system pressure
Power, the function of off-load and safety valve, so the size of pressure controlled height and precision is played a key role, it is existing
Structure of relief valve is that handwheel and spring are split type, and handwheel rotates clockwise extruding spring base when pressure regulation, to change the flexible of spring
Length adjusts pressure size, but when handwheel is totally released counterclockwise sometimes, and the sealing ring on spring base with pilot valve body due to matching
Frictional force caused by conjunction, when handwheel being caused to unclamp spring base cannot fully retracted pilot valve body root, cause degree of regulation to have error,
And then it influences equipment and uses.
Utility model content
In order to solve problem above, the utility model provide one kind be able to achieve pressure is adjusted in special circumstances it is minimum
A kind of overflow valve.
The utility model is realized in this way: a kind of overflow valve, including main valve body, main valve plug, pilot valve body and poppet valve core, institute
It states main valve plug to be set in main valve body, the poppet valve core is set in pilot valve body, the main valve body fixed company vertical with pilot valve body
It connects, the main valve plug is provided with main valve seat far from the side of pilot valve body, plays a supportive role, and reset bullet is connected on the main valve seat
The side of spring, the reset spring and main valve plug connects, and the side of the poppet valve core is provided with spring base, and the other side, which is connected with, leads
Valve seat is provided with compression spring on the spring base, and the pilot valve body is provided with regulating hand wheel of pressure far from the side of guide valve seat, described
Regulating hand wheel of pressure is fixedly connected with spring base, oil inlet and oil return opening is offered on the main valve body, for pouring into pressure oil and pressure
The recycling of power oil is provided with damping hole, control is provided between the main valve body and pilot valve body between the oil inlet and main valve plug
Oil pipe line.
Preferably, be disposed with hex nut and plug screw between the regulating hand wheel of pressure and pilot valve body, the plug screw with lead
Valve body is fixedly connected, and the regulating hand wheel of pressure side is connect through the plug screw and hex nut with spring base, the hex nut
Screw regulating hand wheel of pressure.
Preferably, the pilot valve body is provided with interior hexagonal screw plug close to the side of the guide valve seat, plays fixed function, described
It is provided with bloop between interior hexagonal screw plug and guide valve seat, eliminates the noise in work.
Preferably, the junction of the main valve body and pilot valve body is provided with O-ring seal, guarantees that the leakproofness of valve is good.
Preferably, it is provided with remote control mouth and gauge port on the main valve body, is remotely controlled mouth by being controlled with ambient pressure
Valve body work, remote control and regulation may be implemented in it and multistage pressure is set up, and gauge port can supervise the pressure in overflow valve
It surveys.
Preferably, side setting of the main valve seat far from main valve plug is fluted, and the groove is connected to the return port.
Preferably, it is provided with label on the main valve body, plays mark action, the label is fixed on the master by rivet
On valve body.
Preferably, it is provided with protective plate on the main valve body, plays a part of to protect main valve body.
The beneficial effects of the utility model are: regulating hand wheel of pressure and spring base interconnection are integrally formed, regulating hand wheel of pressure is utilized
Strength overcome frictional force that spring base is adjusted to pilot valve body root, such pressure moment is down to the size of client's needs, reaches
The satisfaction of user, structure is simple, and antihypertensive effect is obvious, good seal, meet client under special operation condition to pressure into
The demand that row is adjusted provides better choice in pressure adjustment to equipment such as hydraulic systems.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure: 1. main valve bodies；2. main valve plug；3. pilot valve body；4. poppet valve core；5. main valve seat；6. reset spring；7. spring
Seat；8. compression spring；9. guide valve seat；10. regulating hand wheel of pressure；11. oil inlet；12. oil return opening；13. damping hole；14. oil-control pipeline；
15. hex nut；16. plug screw；Hexagonal screw plug in 17.；18. bloop；19.O type sealing ring；20. being remotely controlled mouth；21. pressure gauge
Mouthful；22. groove；23. label；24. rivet；25. protective plate.
Specific embodiment
It is further to the utility model with reference to the accompanying drawing in order to be more clearly understood that the technical solution of the utility model
Explanation.
A kind of overflow valve as shown in Figure 1, including main valve body 1, main valve plug 2, pilot valve body 3 and poppet valve core 4, the main valve plug
2 are set in main valve body 1, and the poppet valve core 4 is set in pilot valve body 3, and the main valve body 1 is vertical with pilot valve body 3 to be fixedly connected,
The main valve plug 2 is provided with main valve seat 5 far from the side of pilot valve body 3, plays a supportive role, and is connected with reset on the main valve seat 5
Spring 6, the reset spring 6 are connect with the side of main valve plug 2, and the side of the poppet valve core 4 is provided with spring base 7, the other side
It is connected with guide valve seat 9, compression spring 8 is provided on the spring base 7, the pilot valve body 3 is provided with far from the side of guide valve seat 9
Regulating hand wheel of pressure 10, the regulating hand wheel of pressure 10 is fixedly connected with spring base 7 (including but not limited to connection type as shown in Figure 1, incites somebody to action
Then 10 end grooving of regulating hand wheel of pressure, 7 undercut slots of spring base organically connect), oil inlet is offered on the main valve body 1
Mouthfuls 11 and oil return opening 12 for pouring into the recycling of pressure oil and pressure oil be provided with resistance between the oil inlet 11 and main valve plug 2
Buddhist nun hole 13 is provided with oil-control pipeline 14 between the main valve body 1 and pilot valve body 3.
Be disposed with hex nut 15 and plug screw 16 between the regulating hand wheel of pressure 10 and pilot valve body 3, the plug screw 16 with
Pilot valve body 3 is fixedly connected, and 10 side of regulating hand wheel of pressure is connect through the plug screw 16 and hex nut 15 with spring base 7, institute
It states hex nut 15 and screws regulating hand wheel of pressure 10.
The pilot valve body 3 is provided with interior hexagonal screw plug 17 close to the side of the guide valve seat 9, plays fixed function, described interior
It is provided with bloop 18 between hexagonal screw plug 17 and guide valve seat 9, eliminates the noise in work.
The junction of the main valve body 1 and pilot valve body 3 is provided with O-ring seal 19, guarantees that the leakproofness of valve is good.
It is provided with remote control mouth 20 and gauge port 21 on the main valve body 1, is remotely controlled mouth 20 by being controlled with ambient pressure
Valve body work, remote control and regulation may be implemented in it and multistage pressure is set up, and gauge port 21 can carry out the pressure in overflow valve
Monitoring.
The main valve seat 5 is arranged fluted 22 far from the side of main valve plug 2, and the groove 22 is connected to oil return opening 12.
It is provided with label 23 on the main valve body 1, plays mark action, the label 23 is fixed on the master by rivet 24
On valve body 1.
It is provided with protective plate 25 on the main valve body 1, plays a part of to protect main valve body 1.
After start-up operation, when pressure is not high, pressure oil enters from oil inlet 11, flows through the damping hole 13 on main valve plug 2
Guide valve body 3, when the closing of pilot valve body 3 is not switched on, liquid does not flow in damping hole 13, act on 2 top and bottom of main valve plug it
Between pressure balance, the spring 6 that is reset of main valve plug 2 is pressed on lower end main valve seat 5, and valve port is closed；When hypertonia, pressure oil
Enter from oil inlet 11, the damping hole 13 and oil-control pipeline 14 that are arranged in main valve plug 2 reach guide valve seat 9, push poppet valve core 4 to
Side is mobile, and main valve plug 2 moves up under the action of pressure difference, and main valve plug 2 and main valve seat 5 separate, and overflow port is opened, pressure oil
It is back to groove 22 after poppet valve core 4 and main valve plug 2, and is recycled from oil return opening 12, realizes the purpose for adjusting pressure.
Regulating hand wheel of pressure 10 and spring base 7 are organically connected, whenever regulating hand wheel of pressure 10 be depressured when always with spring base 7
One is adjusted the compression spring 8 on pilot valve body 3 and is compressed and unclamp the adjusting, it can be achieved that oil pressure relief, works as setting with regulating hand wheel of pressure 10
The constant of pressure is realized when being worth constant.
The above description is only a preferred embodiment of the present invention, therefore all according to described in the utility model patent application range
The equivalent change or modification done of structure, feature and principle, be included in the scope of the utility model patent application.
Claims (8)
1. a kind of overflow valve, including main valve body, main valve plug, pilot valve body and poppet valve core, which is characterized in that the main valve plug is set to
In main valve body, the poppet valve core is set in pilot valve body, and the main valve body is vertical with pilot valve body to be fixedly connected, and the main valve plug is remote
Side from pilot valve body is provided with main valve seat, is connected with reset spring on the main valve seat, the reset spring and main valve plug
Side connection, the side of the poppet valve core are provided with spring base, and the other side is connected with guide valve seat, pressure is provided on the spring base
Power spring, the pilot valve body are provided with regulating hand wheel of pressure far from the side of guide valve seat, and the regulating hand wheel of pressure is fixedly connected with spring base,
Oil inlet and oil return opening are offered on the main valve body, and damping hole, the main valve are provided between the oil inlet and main valve plug
Oil-control pipeline is provided between body and pilot valve body.
2. a kind of overflow valve according to claim 1, which is characterized in that successively set between the regulating hand wheel of pressure and pilot valve body
It is equipped with hex nut and plug screw, the plug screw is fixedly connected with pilot valve body, and the plug screw and six are run through in the regulating hand wheel of pressure side
Angle nut is connect with spring base, and the hex nut screws regulating hand wheel of pressure.
3. a kind of overflow valve according to claim 1, which is characterized in that the pilot valve body is close to the side of the guide valve seat
It is provided with interior hexagonal screw plug, is provided with bloop between the interior hexagonal screw plug and guide valve seat.
4. a kind of overflow valve according to claim 1, which is characterized in that the junction of the main valve body and pilot valve body is arranged
There is O-ring seal.
5. a kind of overflow valve according to claim 1, which is characterized in that be provided with remote control mouth and pressure on the main valve body
Table mouth.
6. a kind of overflow valve according to claim 1, which is characterized in that the main valve seat is arranged far from the side of main valve plug
Fluted, the groove is connected to the return port.
7. a kind of overflow valve according to claim 1, which is characterized in that be provided with label, the mark on the main valve body
Board is fixed on the main valve body by rivet.
8. a kind of overflow valve according to claim 1, which is characterized in that be provided with protective plate on the main valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821101839.4U CN208518991U (en) | 2018-07-12 | 2018-07-12 | A kind of overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821101839.4U CN208518991U (en) | 2018-07-12 | 2018-07-12 | A kind of overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208518991U true CN208518991U (en) | 2019-02-19 |
Family
ID=65335657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821101839.4U Active CN208518991U (en) | 2018-07-12 | 2018-07-12 | A kind of overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208518991U (en) |
-
2018
- 2018-07-12 CN CN201821101839.4U patent/CN208518991U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |