CN104100748A - Pressure control valve - Google Patents
Pressure control valve Download PDFInfo
- Publication number
- CN104100748A CN104100748A CN201410261227.1A CN201410261227A CN104100748A CN 104100748 A CN104100748 A CN 104100748A CN 201410261227 A CN201410261227 A CN 201410261227A CN 104100748 A CN104100748 A CN 104100748A
- Authority
- CN
- China
- Prior art keywords
- spring
- pressure adjusting
- spool
- voltage regulation
- adjusting spring
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a pressure control valve. The pressure control valve comprises a shell on the outer side, wherein the top of the shell is provided with an adjusting handle, and the pressure control valve is characterized in that the bottom of the adjusting handle is connected with an adjusting plate, two ends of the adjusting plate are respectively connected with primary pressure adjusting springs, the bottom of the primary pressure adjusting spring is connected with an adjusting seat, two ends of the bottom of the adjusting seat are respectively connected with secondary pressure adjusting springs, the distance between two secondary pressure adjusting springs is greater than that between two primary pressure adjusting springs, the junction of the adjusting seat and each primary pressure adjusting spring and each secondary pressure adjusting spring is respectively provided with a groove, the bottom of each secondary pressure adjusting spring is respectively connected with a diaphragm, the bottom of each diaphragm is provided with a valve core, an inlet side of each valve core is provided with an air inlet, an outlet side of each valve core is provided with an exhaust opening, the bottom of each valve core is provided with a return spring, two sides of each valve core are provided with a baffle plate, and the inlet of the valve core is opened and closed by moving the baffle plates of the valve core. By adopting the pressure control valve, the adjusting effect is guaranteed, and the service life is guaranteed.
Description
Technical field
The present invention relates to a kind of pressure controlled valve.
Background technique
Pressure controlled valve (pressure control valve) is the general name of the valve of pressing pressure, and reduction valve is a kind of pressure controlled valve of commonly using, two kinds of minute direct-acting type and leading types.The direct acting pressure of existing design, need to use pressure adjusting spring to carry out the adjusting of pressure, but pressure adjusting spring length is longer, regulates more frequently, easily causes camber of spring or displacement, affects regulating effect, and then reduces working life.
Summary of the invention
For the problems referred to above, the invention provides a kind of pressure controlled valve, voltage regulation part is improved, avoid, because regulating number of times too much to cause pressure adjusting spring distortion or displacement, guaranteeing regulating effect and working life.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of pressure controlled valve, the housing that comprises outside, described case top is provided with regulating handle, it is characterized in that, described regulating handle bottom is connected with a regulator plate, described regulator plate two ends are connected with respectively one-level pressure adjusting spring, described one-level pressure adjusting spring bottom is connected with adjustment seat, two ends, described adjustment seat bottom are connected with respectively second voltage regulation spring, distance between described two second voltage regulation springs is greater than two distances between one-level pressure adjusting spring, the joint of described adjustment seat and one-level pressure adjusting spring and second voltage regulation spring is provided with groove, described second voltage regulation spring bottom is connected with respectively diaphragm, diaphragm bottom is provided with spool, the suction side of described spool is provided with suction port, the outlet side of spool is provided with relief opening, described spool bottom is provided with Returnning spring, described spool both sides are provided with baffle plate, moving valve core baffle plate opens or closes the import of spool.
Rotation regulating handle, regulator plate can move up and down, and when regulator plate moves down, drives one-level pressure adjusting spring to move down, and then drive second voltage regulation spring to move down, promotion diaphragm moves down, and diaphragm drives baffle plate to move down, and the import of spool is opened, at relief opening, there is air pressure output, displacement size is directly proportional to air pressure size, and when rotating regulating handle to initial position, the import of spool is closed.Wherein pressure adjusting spring adopts secondary structure, reduced the length of single pressure adjusting spring, and one-level pressure adjusting spring and second voltage regulation spring are all positioned at the groove of adjustment seat, can further prevent pressure adjusting spring displacement, compare with existing design, can effectively avoid, because regulating number of times too much to cause pressure adjusting spring distortion or displacement, guaranteeing regulating effect and working life.
Further, on described baffle plate, be provided with the feedback conduit that is communicated with relief opening and spool.When relief opening has air pressure output, output pressure acts on diaphragm and produces thrust upwards through feedback conduit, and when this thrust and pressure adjusting spring force balance, spool just forms stable Output pressure.
Further, between described two diaphragms, be provided with relief valve, the open to atmosphere discharge conduit of the company of being provided with on described housing.If delivery pressure surpasses setting, relief valve is opened, and unnecessary air enters atmosphere through relief valve head piece and discharge conduit.
The invention has the beneficial effects as follows: voltage regulation part is improved, avoid, because regulating number of times too much to cause pressure adjusting spring distortion or displacement, guaranteeing regulating effect and working life.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of pressure controlled valve of the present invention;
The mark implication of accompanying drawing is as follows:
1: suction port; 2: relief opening; 3: regulating handle; 4: one-level pressure adjusting spring; 5: second voltage regulation spring; 6: relief valve; 7: diaphragm; 8: spool; 9: feedback conduit; 10: discharge conduit; 11: Returnning spring; 12: housing; 13: adjustment seat; 14: baffle plate; 15: regulator plate.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, technical solution of the present invention is described in further detail, so that those skilled in the art can better understand the present invention also, can be implemented, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, a kind of pressure controlled valve, the housing 12 outside comprising, described housing 12 tops are provided with regulating handle 3, regulating handle 3 is rotatable, can suppose, while turning clockwise, regulating handle 3 is to moving down, and while being rotated counterclockwise, regulating handle 3 upwards moves.
Described regulating handle 3 bottoms are connected with a regulator plate 15, it can be platy structure, described regulator plate 15 two ends are connected with respectively one-level pressure adjusting spring 4, described one-level pressure adjusting spring 4 bottoms are connected with adjustment seat 13, described adjustment seat 13 two ends, bottom are connected with respectively second voltage regulation spring 5, adjustment seat 13 is bindiny mechanisms of one-level pressure adjusting spring 4 and second voltage regulation spring 5, described adjustment seat 13 is provided with groove with the joint of one-level pressure adjusting spring 4 and second voltage regulation spring 5, be that one-level pressure adjusting spring 4 and second voltage regulation spring 5 are positioned at the groove arranging in adjustment seat 13, prevent spring displacement.Wherein adjustment seat 13 can be to be platy structure, with regulator plate 15, also can be as shown in Figure 1: described adjustment seat 13 is groove shape, described groove shape edge is horizontal-extending laterally, described two one-level pressure adjusting spring 4 bottoms are connected in groove, and described two second voltage regulation spring 5 tops are connected to horizontal-extending place.
Distance between described two second voltage regulation springs 5 is greater than two distances between one-level pressure adjusting spring 4, and the distance between preferred second voltage regulation spring 5 is 2-3 times of the distance between one-level pressure adjusting spring 4.Described second voltage regulation spring 5 bottoms are connected with respectively diaphragm 7, diaphragm 7 bottoms are provided with spool 8, the suction side of described spool 8 is provided with suction port 1, the outlet side of spool 8 is provided with relief opening 2, described spool 8 bottoms are provided with Returnning spring 11, described spool 8 both sides are provided with baffle plate 14, and the top of baffle plate 14 is connected with diaphragm 7, and moving valve core 8 baffle plates 14 open or close the import of spool 8.
On described baffle plate 14, be provided with the feedback conduit 9 that is communicated with relief opening 2 and spool 8.
Preferably, between two diaphragms 7, be provided with relief valve 6, the open to atmosphere discharge conduit 10 of the company of being provided with on described housing 12.
Regulating handle 3 turns clockwise, regulator plate 15 moves down, drive one-level pressure adjusting spring 4 to move down, and then drive second voltage regulation spring 5 to move down, promote diaphragm 7 and move down, diaphragm 7 drives baffle plate 14 to move down, and the import of spool 8 is opened, at relief opening 2, have air pressure output, displacement size is directly proportional to air pressure size.When relief opening 2 has air pressure output, output pressure acts on diaphragm 7 and produces thrust upwards through feedback conduit 9, and when this thrust and pressure adjusting spring force balance, spool 8 just forms stable Output pressure.If delivery pressure surpasses setting, relief valve 6 is opened, and unnecessary air enters atmosphere through relief valve 6 head pieces and discharge conduit 10, until delivery pressure is down to setting, relief valve 6 cuts out, and diaphragm 7 keeps stress balance states.Wherein pressure adjusting spring adopts secondary structure, reduced the length of single pressure adjusting spring, and one-level pressure adjusting spring 4 and second voltage regulation spring 5 are all positioned at the groove of adjustment seat 13, can further prevent pressure adjusting spring displacement, compare with existing design, can effectively avoid, because regulating number of times too much to cause pressure adjusting spring distortion or displacement, guaranteeing regulating effect and working life.
Be rotated counterclockwise regulating handle 3, pressure adjusting spring is relaxation state, and the atmospheric pressure acting on diaphragm 7 is greater than spring force, and relief valve 6 is opened, and delivery pressure reduces until be zero.
These are only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. a pressure controlled valve, the housing that comprises outside, described case top is provided with regulating handle, it is characterized in that, described regulating handle bottom is connected with a regulator plate, described regulator plate two ends are connected with respectively one-level pressure adjusting spring, described one-level pressure adjusting spring bottom is connected with adjustment seat, two ends, described adjustment seat bottom are connected with respectively second voltage regulation spring, distance between described two second voltage regulation springs is greater than two distances between one-level pressure adjusting spring, the joint of described adjustment seat and one-level pressure adjusting spring and second voltage regulation spring is provided with groove, described second voltage regulation spring bottom is connected with respectively diaphragm, diaphragm bottom is provided with spool, the suction side of described spool is provided with suction port, the outlet side of spool is provided with relief opening, described spool bottom is provided with Returnning spring, described spool both sides are provided with baffle plate, moving valve core baffle plate opens or closes the import of spool.
2. a kind of pressure controlled valve according to claim 1, is characterized in that, is provided with the feedback conduit that is communicated with relief opening and spool on described baffle plate.
3. a kind of pressure controlled valve according to claim 2, is characterized in that, between described two diaphragms, is provided with relief valve, the open to atmosphere discharge conduit of the company of being provided with on described housing.
4. a kind of pressure controlled valve according to claim 3, is characterized in that, described adjustment seat is tabular.
5. a kind of pressure controlled valve according to claim 3, it is characterized in that, described adjustment seat is groove shape, and described groove shape edge is horizontal-extending laterally, described two one-level pressure adjusting springs bottom is connected in groove, and described two second voltage regulation spring tops are connected to horizontal-extending place.
6. a kind of pressure controlled valve according to claim 5, is characterized in that, the distance between described second voltage regulation spring is 2-3 times of the distance between one-level pressure adjusting spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261227.1A CN104100748A (en) | 2014-06-13 | 2014-06-13 | Pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261227.1A CN104100748A (en) | 2014-06-13 | 2014-06-13 | Pressure control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104100748A true CN104100748A (en) | 2014-10-15 |
Family
ID=51669154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410261227.1A Pending CN104100748A (en) | 2014-06-13 | 2014-06-13 | Pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104100748A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3859273B2 (en) * | 1996-08-15 | 2006-12-20 | エア・ウォーター防災株式会社 | Pressure reducing valve |
| CN201228792Y (en) * | 2007-08-16 | 2009-04-29 | 陆丕贤 | Pneumatic air pressure reducing valve |
| CN101603599A (en) * | 2008-06-10 | 2009-12-16 | 藤仓橡胶工业株式会社 | Reduction valve |
| CN202946735U (en) * | 2012-11-20 | 2013-05-22 | 富阳派沃阀门有限公司 | Self-operated pressure regulating valve |
| JP2013232073A (en) * | 2012-04-27 | 2013-11-14 | Tlv Co Ltd | Pressure-reducing valve |
-
2014
- 2014-06-13 CN CN201410261227.1A patent/CN104100748A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3859273B2 (en) * | 1996-08-15 | 2006-12-20 | エア・ウォーター防災株式会社 | Pressure reducing valve |
| CN201228792Y (en) * | 2007-08-16 | 2009-04-29 | 陆丕贤 | Pneumatic air pressure reducing valve |
| CN101603599A (en) * | 2008-06-10 | 2009-12-16 | 藤仓橡胶工业株式会社 | Reduction valve |
| JP2013232073A (en) * | 2012-04-27 | 2013-11-14 | Tlv Co Ltd | Pressure-reducing valve |
| CN202946735U (en) * | 2012-11-20 | 2013-05-22 | 富阳派沃阀门有限公司 | Self-operated pressure regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141015 |
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| RJ01 | Rejection of invention patent application after publication |