CN203906931U - Pilot-operated type pressure reducing valve - Google Patents
Pilot-operated type pressure reducing valve Download PDFInfo
- Publication number
- CN203906931U CN203906931U CN201420285012.9U CN201420285012U CN203906931U CN 203906931 U CN203906931 U CN 203906931U CN 201420285012 U CN201420285012 U CN 201420285012U CN 203906931 U CN203906931 U CN 203906931U
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- CN
- China
- Prior art keywords
- valve
- spring
- pressure
- pilot
- main
- 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 pilot-operated type pressure reducing valve which comprises a pressure adjusting hand wheel, springs and a valve cover. The springs comprise the pressure adjusting spring and the main valve spring. An adjusting screw is arranged on the pressure adjusting hand wheel, the adjusting screw is installed on the valve cover, the pressure adjusting spring is arranged in the valve cover, the pressure adjusting spring is connected with one end of a pilot valve, a pilot valve element is fixed to the other end of the pilot valve, the pilot valve element is fixed to a pilot valve seat, a remote control opening is formed in the tail end of the pilot valve seat, an oil leaking opening is formed in the lower end of the pilot valve seat, a valve body is fixed to the lower end of the valve cover, the main valve spring is arranged in the valve body, an oil inlet is formed in the lower end of the main valve spring, a main valve element is arranged on the oil inlet, a pressure reducing opening is formed in the main valve element, an oil outlet is formed in one side of the pressure reducing opening, a damping hole is formed in one side of the lower end of the main valve element, and an end cover is arranged at the bottom of the main valve element. The pilot-operated type pressure reducing valve has the advantages of being simple and compact in structure, reliable in operation and long in service life.
Description
Technical field
The utility model relates to valve technology field, relates in particular to a kind of piloted reducer.
Background technique
Reduction valve is by regulating, inlet pressure being reduced to the outlet pressure of a certain needs, and rely on the energy of medium itself, makes outlet pressure automatically keep stable valve.Along with the demand to reduction valve is more and more higher in the market, there are various types of reduction valve, piloted reducer should be educated and be given birth to.Piloted reducer is the flow that the aperture of the open-shut device in employing control valve body regulates medium; by the pressure decreased of medium; by the effect of downstream pressure, regulate the aperture of open-shut device simultaneously; downstream pressure is kept within the specific limits; in the situation that inlet pressure constantly changes; keep outlet pressure in the scope of setting, utensil is produced in protection life thereafter.This class valve generally should level be installed in pipeline.The most complex structure of piloted reducer in the market, operation inconvenience, loaded down with trivial details and difficult adjusting in pressure treatment, therefore, needs a kind of new technological scheme to address the above problem.
Model utility content
The utility model provides a kind of piloted reducer of simple and compact for structure, long service life.
The technical solution adopted in the utility model: a kind of piloted reducer comprises regulating hand wheel of pressure, spring and valve gap, spring comprises pressure adjusting spring and main spool spring, adjusting screw is installed on regulating hand wheel of pressure, adjusting screw is arranged on valve gap, in valve gap, be provided with pressure adjusting spring, pressure adjusting spring is connected with one end of pilot valve, the other end of pilot valve is fixed with guide valve core, guide valve core is fixed on guide valve seat, the tail end of guide valve seat is provided with remote control mouth, guide valve seat lower end is provided with drain tap, valve gap lower end is fixed with valve body, in valve body, be provided with main spool spring, main spool spring lower end is provided with filler opening, filler opening is provided with main valve plug, main valve plug is provided with pressure-reduction outlet, one side of pressure-reduction outlet is provided with oil outlet, one side of main valve plug lower end is provided with damping hole, main valve plug bottom is provided with end cap.
Above-mentioned filler opening is provided with seal ring I, and oil outlet is provided with seal ring II; Valve gap tightly covers on valve body and the material of valve gap and valve body employing is teflon; Pressure adjusting spring upper end is provided with safety valve.
The beneficial effects of the utility model: a kind of piloted reducer is simple and compact for structure, reliable, long service life; On filler opening and oil outlet, being equipped with seal ring and valve gap and valve body, to adopt teflon be material, and sealing effect is good; On pressure adjusting spring, be provided with safety valve, safety valve can be controlled pressure adjusting spring operation, the variation of application valve cover internal pressure, the situation that piloted reducer of the present utility model is changed applicable to various pressure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1, regulating hand wheel of pressure, 2, adjusting screw, 3, pressure adjusting spring, 4, pilot valve, 5, valve gap, 6, guide valve core, 7, guide valve seat, 8, remote control mouth, 9, drain tap, 10, oil outlet, 11, pressure-reduction outlet, 12, main valve plug, 13, end cap, 14, damping hole, 15, main spool spring, 16, filler opening, 17, valve body, 18, seal ring I, 19, seal ring II, 20, safety valve.
Embodiment
As shown in Figure 1, a kind of piloted reducer comprises regulating hand wheel of pressure 1, spring and valve gap 5, spring comprises pressure adjusting spring 3 and main spool spring 15, adjusting screw 2 is installed on regulating hand wheel of pressure 1, adjusting screw 2 is arranged on valve gap 5, in valve gap 5, be provided with pressure adjusting spring 3, pressure adjusting spring 3 is connected with one end of pilot valve 4, the other end of pilot valve 4 is fixed with guide valve core 6, guide valve core 6 is fixed on guide valve seat 7, the tail end of guide valve seat 7 is provided with remote control mouth 8, guide valve seat 7 lower ends are provided with drain tap 9, valve gap 5 lower ends are fixed with valve body 17, in valve body 17, be provided with main spool spring 15, main spool spring 15 lower ends are provided with filler opening 16, filler opening 16 is provided with main valve plug 12, main valve plug 12 is provided with pressure-reduction outlet 11, one side of pressure-reduction outlet 11 is provided with oil outlet 10, one side of main valve plug 12 lower ends is provided with damping hole 14, main valve plug 12 bottoms are provided with end cap 13.
Above-mentioned filler opening 16 is provided with seal ring I 18, and oil outlet 10 is provided with seal ring II 19; Valve gap 5 tightly covers on valve body 17 and the material of valve gap 5 and valve body 17 employings is teflon; Pressure adjusting spring 3 upper ends are provided with safety valve 20.
A kind of piloted reducer is simple and compact for structure, reliable, long service life; On filler opening 16 and oil outlet 10, being equipped with seal ring and valve gap 5 and valve body 17, to adopt teflon be material, and sealing effect is good; On pressure adjusting spring 3, be provided with safety valve 20, safety valve 20 can be controlled pressure adjusting spring operation, the variation of application valve cover 5 internal pressures, the situation that piloted reducer of the present utility model is changed applicable to various pressure.
Claims (4)
1. a piloted reducer, it is characterized in that: reduction valve comprises regulating hand wheel of pressure, spring and valve gap, described spring comprises pressure adjusting spring and main spool spring, on described regulating hand wheel of pressure, adjusting screw is installed, described adjusting screw is arranged on valve gap, in described valve gap, be provided with pressure adjusting spring, described pressure adjusting spring is connected with one end of pilot valve, the other end of described pilot valve is fixed with guide valve core, described guide valve core is fixed on guide valve seat, the tail end of described guide valve seat is provided with remote control mouth, described guide valve seat lower end is provided with drain tap, described valve gap lower end is fixed with valve body, in described valve body, be provided with main spool spring, described main spool spring lower end is provided with filler opening, described filler opening is provided with main valve plug, described main valve plug is provided with pressure-reduction outlet, one side of described pressure-reduction outlet is provided with oil outlet, one side of described main valve plug lower end is provided with damping hole, described main valve plug bottom is provided with end cap.
2. a kind of piloted reducer according to claim 1, is characterized in that: described filler opening is provided with seal ring I, and described oil outlet is provided with seal ring II.
3. a kind of piloted reducer according to claim 1, is characterized in that: described valve gap tightly covers on valve body, and the material that described valve gap and valve body adopt is teflon.
4. a kind of piloted reducer according to claim 1, is characterized in that: described pressure adjusting spring upper end is provided with safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285012.9U CN203906931U (en) | 2014-05-30 | 2014-05-30 | Pilot-operated type pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285012.9U CN203906931U (en) | 2014-05-30 | 2014-05-30 | Pilot-operated type pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906931U true CN203906931U (en) | 2014-10-29 |
Family
ID=51781210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420285012.9U Expired - Fee Related CN203906931U (en) | 2014-05-30 | 2014-05-30 | Pilot-operated type pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111315991A (en) * | 2019-03-28 | 2020-06-19 | 深圳市大疆创新科技有限公司 | Pump device and agricultural plant protection machine |
-
2014
- 2014-05-30 CN CN201420285012.9U patent/CN203906931U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111315991A (en) * | 2019-03-28 | 2020-06-19 | 深圳市大疆创新科技有限公司 | Pump device and agricultural plant protection machine |
| WO2020191730A1 (en) * | 2019-03-28 | 2020-10-01 | 深圳市大疆创新科技有限公司 | Pump device and agricultural plant protection machine |
| CN111315991B (en) * | 2019-03-28 | 2022-07-22 | 深圳市大疆创新科技有限公司 | Pump device and agricultural plant protection machine |
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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: 20141029 Termination date: 20150530 |
|
| EXPY | Termination of patent right or utility model |