CN208670112U - A kind of pressure-control valve - Google Patents
A kind of pressure-control valve Download PDFInfo
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- CN208670112U CN208670112U CN201821538030.8U CN201821538030U CN208670112U CN 208670112 U CN208670112 U CN 208670112U CN 201821538030 U CN201821538030 U CN 201821538030U CN 208670112 U CN208670112 U CN 208670112U
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- flap
- spring
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Abstract
The utility model discloses a kind of pressure-control valves, including spool, the left end of the spool is provided with inlet tube, the right end of spool is provided with outlet tube, spool is cylindrical, the first liquid-passing hole is provided on the left and right barrel of spool, sliding is provided with flap in spool, flap is cylindrical, the second liquid-passing hole is provided on flap, the axis parallel of the central axes of second liquid-passing hole and the first liquid-passing hole, the upper end of the spool is provided with capsul, the inside of capsul is transformation chamber, transformation is intracavitary to be provided with the first spring, the upper end of first spring is fixed on the inner wall of capsul, the lower end of first spring is fixed on the upper surface of flap, control device is provided on the outlet tube, this pressure-control valve can control the fluid pressure to circulate in valve body, when fluid pressure is greater than the maximum value of pressure-control valve setting, valve body blocks The flowing of liquid guarantees the safety of hydraulic system, moreover it is possible to adjust the pressure threshold value of pressure-control valve, applicability is high.
Description
Technical field
The utility model relates to valve body technical field, specially a kind of pressure-control valve.
Background technique
Pressure-control valve refers to the valve that the pressure of the liquid stream in hydraulic system is controlled and adjusted, pressure-control valve
Play pressure regulation, level pressure in systems, it is that the principle to be balanced each other using Fluid pressure and spring is worked, and working condition is straight
Receiving the influence of control pressure, state is variation, it is fixed when the pressure threshold value of existing pressure-control valve, it was using
Can not be with the pressure output value according to actual conditions regulation valve body in journey, applicability is lower.
Utility model content
The technical problems to be solved in the utility model is to overcome existing defect, provides a kind of pressure-control valve, can be to valve
The fluid pressure to circulate in vivo is controlled, and when fluid pressure is greater than the maximum value of pressure-control valve setting, valve body blocks liquid
The flowing of body guarantees the safety of hydraulic system, moreover it is possible to adjust the pressure threshold value of pressure-control valve, applicability is high, can be effective
Solve the problems in background technique.
To achieve the above object, the utility model provides the following technical solutions: a kind of pressure-control valve, including spool, institute
The left end for stating spool is provided with inlet tube, and the right end of spool is provided with outlet tube, and spool is cylindrical, on the left and right barrel of spool
It is provided with the first liquid-passing hole, sliding is provided with flap in spool, and flap is cylindrical, the second liquid-passing hole is provided on flap, the
The axis parallel of the central axes of two liquid-passing holes and the first liquid-passing hole, the upper end of the spool are provided with capsul, capsul
Inside is transformation chamber, and transformation is intracavitary to be provided with the first spring, and the upper end of the first spring is fixed on the inner wall of capsul, the first bullet
The lower end of spring is fixed on the upper surface of flap, and control device is provided on the outlet tube, and the lower end of control device is provided with
One liquid back pipe, the first liquid back pipe are located inside outlet tube, and the left end lower part of control device is provided with the second liquid back pipe, second time liquid
The other end of pipe is connected to transformation chamber.
As a kind of optimal technical scheme of the utility model, the lateral surface end of the inlet tube and outlet tube is respectively provided with
There is external screw thread.
As a kind of optimal technical scheme of the utility model, pressure gauge is installed on the outlet tube.
As a kind of optimal technical scheme of the utility model, the control device includes mounting shell, and mounting shell setting exists
On the tube wall of outlet tube, mounting shell is cylindrical, and swivel nut is provided at the top of mounting shell, screw rod, spiral shell are fitted in swivel nut
The upper end of bar is provided with rotating handle, and the lower end of screw rod is provided with connecting plate, and connecting plate is located in mounting shell, the lower surface of connecting plate
It is provided with second spring, the lower end of second spring is provided with blocking solution column, and blocking solution column is slidably arranged in mounting shell, the blocking solution column
Upper surface be provided with guide rod, the top of guide rod is interspersed in the pilot hole on connecting plate.
As a kind of optimal technical scheme of the utility model, it is recessed that annular is provided on the circular arc side of the blocking solution column
Slot is arranged with sealing ring in annular groove.
Compared with prior art, the utility model has the beneficial effects that this pressure-control valve can be to the liquid to circulate in valve body
Body pressure is controlled, and when fluid pressure is greater than the maximum value of pressure-control valve setting, valve body blocks the flowing of liquid, guarantees
The safety of hydraulic system, moreover it is possible to adjust the pressure threshold value of pressure-control valve, applicability is high.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is structure enlargement diagram at the utility model A.
In figure: 1 spool, 2 inlet tubes, 3 outlet tubes, 4 flaps, 5 first liquid-passing holes, 6 second liquid-passing holes, 7 capsuls, 8 become
Press chamber, 9 first springs, 10 relief tubes, 11 ball valves, 12 pressure gauges, 13 control devices, 14 first liquid back pipes, 15 second liquid back pipes,
16 mounting shells, 17 blocking solution columns, 18 screw rods, 19 swivel nuts, 20 rotating handles, 21 connecting plates, 22 guide rods, 23 second springs.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of pressure-control valve, including spool 1, spool 1
Left end be provided with inlet tube 2, the right end of spool 1 is provided with outlet tube 3, and inlet tube 2 and the lateral surface end of outlet tube 3 are all provided with
It is equipped with external screw thread, for connecting with external pipe, pressure gauge 12 is installed, for observing the liquid in outlet tube 3 on outlet tube 3
Pressure value, spool 1 is cylindrical, and the first liquid-passing hole 5 is provided on the left and right barrel of spool 1, and sliding is provided with flap in spool 1
4, flap 4 is cylindrical, is provided with the second liquid-passing hole 6 on flap 4, in the central axes of the second liquid-passing hole 6 and the first liquid-passing hole 5
Axis is parallel, and when the central axes of the first liquid-passing hole 5 are overlapped with the central axes of the second liquid-passing hole 6, spool 1 is in maximum folding shape
State, the amount of liquid passed through in the valve body unit time at this time is maximum, and the upper end of spool 1 is provided with capsul 7, the inside of capsul 7
For transformation chamber 8, when pressure increases in transformation chamber 8, pushes flap 4 mobile, change the position of the second liquid-passing hole 6 on flap 4, reach
Lead to the purpose of liquid or blocking, is provided with the first spring 9 in transformation chamber 8, the upper end of the first spring 9 is fixed on the inner wall of capsul 7
On, the lower end of the first spring 9 is fixed on the upper surface of flap 4, and when the pressure in transformation chamber 8 is restored, the first spring 9 is for making
Flap 4 is restored to original position, and control device 13 is provided on outlet tube 3, and the lower end of control device 13 is provided with the first liquid back pipe 14,
First liquid back pipe 14 is located inside outlet tube 3, and the left end lower part of control device 13 is provided with the second liquid back pipe 15, the second liquid back pipe
15 other end is connected to transformation chamber 8, and the liquid effects in outlet tube 3 are in the bottom of blocking solution column 17, when pressure is big in outlet tube 3
When the elastic force of second spring 23, blocking solution column 17 is jacked up, and the first liquid back pipe 14 is connected to the second liquid back pipe 15, and liquid enters
Transformation chamber 8, pressure increases in transformation chamber 8, and flap 4 moves down, the overlapping area reduction of the first liquid-passing hole 5 and the second liquid-passing hole 6, valve
Body, which leads to liquid measure, to be reduced, and achievees the purpose that reduce fluid pressure in outlet tube 3, control device 13 includes mounting shell 16, mounting shell 16
It is arranged on the tube wall of outlet tube 3, mounting shell 16 is cylindrical, and the top of mounting shell 16 is provided with swivel nut 19, matches in swivel nut 19
Conjunction is equipped with screw rod 18, and the upper end of screw rod 18 is provided with rotating handle 20, by pulling rotating handle 20, can be adjusted by rotation screw rod 18
The position of connecting plate 21 is saved, and then adjusts the decrement of second spring 23, achievees the purpose that adjust pressure threshold value, under screw rod 18
End is provided with connecting plate 21, and connecting plate 21 is located in mounting shell 16, and the lower surface of connecting plate 16 is provided with second spring 23, and second
The lower end of spring 23 is provided with blocking solution column 17, and second spring 23 is that blocking solution column 17 provides resistance, and blocking solution column 17 is slidably arranged in peace
It fills in shell 16, annular groove is provided on the circular arc side of blocking solution column 17, sealing ring is arranged in annular groove, sealing ring is used for
The leakproofness of blocking solution column 17 is improved, the upper surface of blocking solution column 17 is provided with guide rod 22, and the top of guide rod 22 is interspersed in connection
In pilot hole on plate 21, guide rod 22 is oriented to when mobile to blocking solution column 17.
When in use: when the central axes of the first liquid-passing hole 5 are overlapped with the central axes of the second liquid-passing hole 6, spool 1 is in maximum
Folding condition, the amount of liquid passed through in the valve body unit time at this time is maximum, when pressure increases in transformation chamber 8, flap 4 is pushed to move
It is dynamic, change the position of the second liquid-passing hole 6 on flap 4, achievees the purpose that logical liquid or blocking, the liquid effects in outlet tube 3 are hindering
The bottom of fluid column 17, when pressure is greater than the elastic force of second spring 23 in outlet tube 3, blocking solution column 17 is jacked up, the first liquid back pipe
14 are connected to the second liquid back pipe 15, and liquid enters transformation chamber 8, and pressure increases in transformation chamber 8, and flap 4 moves down, the first liquid-passing hole
5 and second liquid-passing hole 6 overlapping area reduce, valve body lead to liquid measure reduce, achieve the purpose that reduce outlet tube 3 in fluid pressure,
When the pressure in transformation chamber 8 is restored, the first spring 9, by pulling rotating handle 20, can lead to for making flap 4 be restored to original position
It crosses rotation screw rod 18 and adjusts the position of connecting plate 21, and then adjust the decrement of second spring 23, reach and adjust pressure threshold value
Purpose is equipped with pressure gauge 12 on outlet tube 3, for observing the liquid pressure value in outlet tube 3.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of pressure-control valve, including spool (1), it is characterised in that: the left end of the spool (1) is provided with inlet tube (2),
The right end of spool (1) is provided with outlet tube (3), and spool (1) is cylindrical, and it is logical that first is provided on the left and right barrel of spool (1)
Fluid apertures (5), the interior sliding of spool (1) are provided with flap (4), and flap (4) is cylindrical, and flap is provided with the second liquid-passing hole on (4)
(6), the upper end of the axis parallel of the central axes of the second liquid-passing hole (6) and the first liquid-passing hole (5), the spool (1) is provided with
Capsul (7), the inside of capsul (7) are transformation chamber (8), are provided with the first spring (9) in transformation chamber (8), the first spring (9)
Upper end be fixed on the inner wall of capsul (7), the lower end of the first spring (9) is fixed on the upper surface of flap (4), it is described go out liquid
It is provided with control device (13) on pipe (3), the lower end of control device (13) is provided with the first liquid back pipe (14), the first liquid back pipe
(14) it is located at outlet tube (3) inside, the left end lower part of control device (13) is provided with the second liquid back pipe (15), the second liquid back pipe
(15) the other end is connected to transformation chamber (8).
2. a kind of pressure-control valve according to claim 1, it is characterised in that: the inlet tube (2) and outlet tube (3)
Lateral surface end is provided with external screw thread.
3. a kind of pressure-control valve according to claim 1, it is characterised in that: be equipped with pressure on the outlet tube (3)
Table (12).
4. a kind of pressure-control valve according to claim 1, it is characterised in that: the control device (13) includes mounting shell
(16), mounting shell (16) is arranged on the tube wall of outlet tube (3), and mounting shell (16) is cylindrical, and mounting shell is set at the top of (16)
It is equipped with swivel nut (19), is fitted with screw rod (18) in swivel nut (19), the upper end of screw rod (18) is provided with rotating handle (20), screw rod
(18) lower end is provided with connecting plate (21), and connecting plate (21) is located in mounting shell (16), the lower surface setting of connecting plate (21)
Have second spring (23), the lower end of second spring (23) is provided with blocking solution column (17), and blocking solution column (17) is slidably arranged in mounting shell
(16) in, the upper surface of the blocking solution column (17) is provided with guide rod (22), and the top of guide rod (22) is interspersed in connecting plate
(21) in the pilot hole on.
5. a kind of pressure-control valve according to claim 4, it is characterised in that: on the circular arc side of the blocking solution column (17)
It is provided with annular groove, is arranged with sealing ring in annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821538030.8U CN208670112U (en) | 2018-09-20 | 2018-09-20 | A kind of pressure-control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821538030.8U CN208670112U (en) | 2018-09-20 | 2018-09-20 | A kind of pressure-control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208670112U true CN208670112U (en) | 2019-03-29 |
Family
ID=65842323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821538030.8U Active CN208670112U (en) | 2018-09-20 | 2018-09-20 | A kind of pressure-control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208670112U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111505201A (en) * | 2020-04-24 | 2020-08-07 | 李莉 | Potentiometric titrator structure capable of automatically cleaning and discharging waste |
| CN113008509A (en) * | 2019-12-20 | 2021-06-22 | 天津大学 | Blood vessel loading device |
| CN114719666A (en) * | 2022-03-25 | 2022-07-08 | 河北邯峰发电有限责任公司 | Electric damper adjusting device and method |
| CN114829819A (en) * | 2019-12-24 | 2022-07-29 | 贝克休斯能源科技英国有限公司 | Selective connection of annular regions |
-
2018
- 2018-09-20 CN CN201821538030.8U patent/CN208670112U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008509A (en) * | 2019-12-20 | 2021-06-22 | 天津大学 | Blood vessel loading device |
| CN114829819A (en) * | 2019-12-24 | 2022-07-29 | 贝克休斯能源科技英国有限公司 | Selective connection of annular regions |
| CN111505201A (en) * | 2020-04-24 | 2020-08-07 | 李莉 | Potentiometric titrator structure capable of automatically cleaning and discharging waste |
| CN111505201B (en) * | 2020-04-24 | 2022-12-16 | 士业电子科技徐州有限公司 | Potentiometric titrator structure capable of automatically cleaning and discharging waste |
| CN114719666A (en) * | 2022-03-25 | 2022-07-08 | 河北邯峰发电有限责任公司 | Electric damper adjusting device and method |
| CN114719666B (en) * | 2022-03-25 | 2024-01-23 | 河北邯峰发电有限责任公司 | Electric throttle device and method |
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