CN106438542B - relief valve - Google Patents
relief valve Download PDFInfo
- Publication number
- CN106438542B CN106438542B CN201610884723.1A CN201610884723A CN106438542B CN 106438542 B CN106438542 B CN 106438542B CN 201610884723 A CN201610884723 A CN 201610884723A CN 106438542 B CN106438542 B CN 106438542B
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- CN
- China
- Prior art keywords
- pressure release
- valve
- pressure
- guide rod
- seal
- 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
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/024—Pressure relief valves
-
- 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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
Abstract
The present invention proposes a kind of relief valve, and the both ends of valve body are valve bottom and valve head, are valve chamber in valve body；Pressure release baffle is set in valve chamber, and valve chamber is divided into pressure-releasing chamber and working chamber；Pressure release baffle sets pressure release seal groove；The first guide rod is equipped with pressure-releasing chamber, pressure release core is arranged with the first guide rod, pressure release core includes pressure release guide pad, pressure release seal and the second guide rod；Pressure release spring is arranged on first guide rod；It is arranged on second guide rod for wick, includes fuel feeding guide pad and for oil seal for wick；Fuel feeding spring is arranged on second guide rod；Entrance is set on valve head, entrance sets fuel feeding seal groove；Limit in working chamber a plush copper；Oil-feed port is opened up on valve body between spacing plush copper and pressure release baffle；Pressure relief opening is opened up on the valve body at valve bottom.Present invention design is simple, and compact-sized, small, simple process and low cost is honest and clean；Not only it can guarantee that the stability of oil-feed port oil pump capacity, but also be avoided that the oil refluence that pressure release is released.
Description
Technical field
The present invention relates to technical field of hydraulic pressure, is specifically a kind of relief valve.
Background technology
Relief valve also known as safety valve (safety valve), according to the operating pressure energy automatic open close of system, general installation
In protection system safety in the equipment of closed system or pipeline.When equipment or manifold pressure exceed relief valve setting pressure,
Pressure release is automatically turned on, ensures that equipment and pipeline internal medium pressure under setting pressure, are protected equipment and pipeline, prevented
It is unexpected.
Relief valve is an important safety block in hydraulic system, and the effect of relief valve is to ensure that oil pump capacity exists
A relatively stable amount is held under any pressure, so as to ensure the normal operation of whole system.It is proposed it is new, more effectively make
The structure of relief valve, is the continuous pursuit of this area.
Pressure-relief valve structure of the prior art is complex, and technique is cumbersome, of high cost.
The content of the invention
The present invention proposes a kind of relief valve, solves that pressure-relief valve structure of the prior art is complex, and technique is cumbersome, into
The problem of this is high.
The technical proposal of the invention is realized in this way：
A kind of relief valve, including valve body, the both ends of the valve body are respectively valve bottom and valve head, are valve chamber in the valve body；
The middle part of the valve chamber is equipped with pressure release baffle, and the valve chamber is divided into pressure-releasing chamber and work by the pressure release baffle
Chamber；
The middle part of the pressure release baffle is equipped with through hole, and the pressure release baffle is close equipped with pressure release towards the side of the pressure-releasing chamber
Sealing groove, the pressure release seal groove surround the through hole one week；
The first guide rod is equipped with the pressure-releasing chamber, one end of first guide rod is fixed on the valve bottom；
Pressure release core is arranged with first guide rod, the pressure release core includes sequentially connected pressure release guide pad, pressure release
Seal and the second guide rod, the pressure release guide pad and pressure release seal are sheathed on first guide rod；The pressure release
Seal is used cooperatively with the pressure release seal groove；Pressure release spring, the pressure release spring position are arranged with first guide rod
Between the valve bottom and pressure release guide pad；
It is arranged with second guide rod for wick, it is described to include sequentially connected fuel feeding guide pad and circular cone for wick
Shape supplies oil seal；Fuel feeding spring is arranged with second guide rod, the fuel feeding spring is located at the pressure release seal
Between the fuel feeding guide pad；
The valve head is equipped with entrance, and the entrance is equipped with and the fuel feeding seal groove being used cooperatively for oil seal；
It is equipped with the working chamber and spacing spacing plush copper is carried out to the displacement for wick；
Oil-feed port, the oil-feed port and the work are offered on valve body between the spacing plush copper and the pressure release baffle
Make chamber connection；
Pressure relief opening is offered on the valve body at the valve bottom, the pressure relief opening is connected with the pressure-releasing chamber.
Further, the first adjusting nut, first adjusting nut are equipped between the pressure release spring and the valve bottom
It is screwed on first guide rod.
Further, the second adjusting nut is equipped between the fuel feeding spring and the pressure release seal, described second adjusts
Section nut is screwed on second guide rod.
Further, the pressure release seal groove is the groove that section is triangle；The pressure release seal includes a disk,
The sealing bulge loop that the disk is equipped with the matched section of pressure release seal groove is triangle.
Further, it is equipped with the first sealing material layer in the pressure release seal groove.
Further, the fuel feeding seal groove is to supply the matched round platform connected in star of oil seal with described.
Further, it is equipped with the second sealing material layer in the fuel feeding seal groove.
Beneficial effects of the present invention are：
Present invention design is simple, and compact-sized, small, simple process and low cost is honest and clean；When oil pressure is not reaching to critical value
When, only fuel feeding spring stress compress, can by oil-feed port carry out fuel feeding, when oil pressure exceedes critical value, pressure release spring also by
Force compresses, then excessive oil can be discharged from pressure relief opening, ensure oil-feed port oil pump capacity stability；In non-draining, pressure release sealing
Part is closely pressed with pressure release seal groove, the oil refluence for avoiding pressure release from releasing.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of one embodiment of the invention.
Wherein：
1st, valve body；2nd, valve bottom；3rd, valve head；4th, pressure release baffle；5th, pressure-releasing chamber；6th, working chamber；7th, pressure release seal groove；8th, first
Guide rod；9th, pressure release guide pad；10th, pressure release seal；11st, the second guide rod；12nd, bulge loop is sealed；13rd, the first sealing material
Layer；14th, pressure release spring；15th, the first adjusting nut；16th, fuel feeding guide pad；17th, for oil seal；18th, fuel feeding spring；19th,
Two adjusting nuts；20th, entrance；21st, fuel feeding seal groove；22nd, the second sealing material layer；23rd, spacing plush copper；24th, oil-feed port；25、
Pressure relief opening.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
As shown in Figure 1, the relief valve in the present embodiment, including valve body 1, the both ends of the valve body 1 are respectively valve bottom 2 and valve
First 3, the interior valve body 1 is valve chamber, and valve body 1 and valve chamber are all cylinder.The middle part of the valve chamber is equipped with pressure release baffle 4, pressure release
Baffle 4 is circle, and the excircle of pressure release baffle 4 is bonded with the inner wall of valve body 1, and the valve chamber is divided into by the pressure release baffle 4
Pressure-releasing chamber 5 and working chamber 6.The middle part of the pressure release baffle 4 is equipped with through hole, the pressure release baffle 4 towards the pressure-releasing chamber 5 one
Side is equipped with pressure release seal groove 7, and the pressure release seal groove 7 surround the through hole one week.
The first guide rod 8 is equipped with the pressure-releasing chamber 5, one end of first guide rod 8 is fixed on the valve bottom 2,
First guide rod 8 is located on the axle center of pressure-releasing chamber 5.Be arranged with pressure release core on first guide rod 8, the pressure release core include according to
Pressure release guide pad 9,10 and second guide rod 11 of pressure release seal of secondary connection, the pressure release guide pad 9 and pressure release seal 10
It is sheathed on first guide rod 8；The pressure release seal 10 is used cooperatively with the pressure release seal groove 7, in the present embodiment,
The pressure release seal groove 7 is the groove that section is triangle；The pressure release seal 10 includes a disk, and the disk is equipped with
With the sealing bulge loop 12 that the 7 matched section of pressure release seal groove is triangle, the pressure release seal groove 7 is interior to be equipped with the first sealing
Material layer 13, to improve leakproofness；Pressure release spring 14 is arranged with first guide rod 8, the pressure release spring 14 is located at institute
State between valve bottom 2 and pressure release guide pad 9.First is equipped with the present embodiment, between the pressure release spring 14 and the valve bottom 2 to adjust
Nut 15, first adjusting nut 15 are screwed on first guide rod 8.The position of the first adjusting nut 15 of adjusting can be passed through
Put to adjust the pressure of pressure release spring 14.
Second guide rod 11 is located on the axle center of the valve chamber, is arranged with second guide rod 11 for wick, described
Include sequentially connected fuel feeding guide pad 16 and cone for oil seal 17 for wick；It is arranged on second guide rod 11
There is fuel feeding spring 18, the fuel feeding spring 18 is between the pressure release seal 10 and the fuel feeding guide pad 16.This implementation
In example, the second adjusting nut 19, second adjusting nut are equipped between the fuel feeding spring 18 and the pressure release seal 10
19 are screwed on second guide rod 11.The pressure of fuel feeding spring 18 can be adjusted by adjusting the position of the second adjusting nut 19
Power.
The valve head 3 is equipped with entrance 20, and the entrance 20 is equipped with and the fuel feeding being used cooperatively for oil seal 17
Seal groove 21.In the present embodiment, the fuel feeding seal groove 21 be with it is described supply the matched round platform connected in star of oil seal 17, it is described
The second sealing material layer 22 is equipped with fuel feeding seal groove 21, to ensure leakproofness.
It is equipped with the working chamber 6 and spacing spacing plush copper 23 is carried out to the displacement for wick.In the present embodiment, limit
The quantity of position plush copper 23 is two, is relatively arranged on the inner wall of valve chamber, the gap between two spacing plush coppers 23 allows to supply
Oily guide pad 16 is by that but can stop for oil seal 17, to realize position-limiting action, and will not stop passing through for oil.
Oil-feed port 24, the oil-feed port 24 are offered on valve body 1 between the spacing plush copper 23 and the pressure release baffle 4
Connected with the working chamber 6.Pressure relief opening 25, the pressure relief opening 25 and the pressure release are offered on the valve body 1 at the valve bottom 2
Chamber 5 connects.
When the present embodiment works, oil enters from entrance 20, and fuel feeding spring 18 is compressed under the action of oil pressure, after wick
Move, oil enters working chamber 6 from entrance 20, then is flowed out from oil-feed port 24 and carry out fuel feeding；When the oil pressure entered from entrance 20 is excessive,
Pressure release spring 14 is compressed, and is moved after pressure release core, then excessive oil enters pressure-releasing chamber 5, then is discharged from pressure relief opening 25, to ensure fuel feeding
The stabilization of 24 fuel deliveries of mouth.In non-draining, pressure release seal 10 is closely pressed with pressure release seal groove 7, avoids what pressure release was released
Oil is flow backwards.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (7)
1. a kind of relief valve, it is characterised in that including valve body, the both ends of the valve body are respectively valve bottom and valve head, the valve body
Interior is valve chamber；
The middle part of the valve chamber is equipped with pressure release baffle, and the valve chamber is divided into pressure-releasing chamber and working chamber by the pressure release baffle；
The middle part of the pressure release baffle is equipped with through hole, and the pressure release baffle is sealed towards the side of the pressure-releasing chamber equipped with pressure release
Groove, the pressure release seal groove surround the through hole one week；
The first guide rod is equipped with the pressure-releasing chamber, one end of first guide rod is fixed on the valve bottom；
Pressure release core is arranged with first guide rod, the pressure release core includes sequentially connected pressure release guide pad, pressure release seals
Part and the second guide rod, the pressure release guide pad and pressure release seal are sheathed on first guide rod；The pressure release sealing
Part is used cooperatively with the pressure release seal groove；Pressure release spring is arranged with first guide rod, the pressure release spring is located at institute
State between valve bottom and pressure release guide pad；
It is arranged with second guide rod for wick, it is described to include sequentially connected fuel feeding guide pad and cone for wick
For oil seal；Fuel feeding spring is arranged with second guide rod, the fuel feeding spring is located at the pressure release seal and institute
State between fuel feeding guide pad；
The valve head is equipped with entrance, and the entrance is equipped with and the fuel feeding seal groove being used cooperatively for oil seal；
It is equipped with the working chamber and spacing spacing plush copper is carried out to the displacement for wick；
Oil-feed port, the oil-feed port and the working chamber are offered on valve body between the spacing plush copper and the pressure release baffle
Connection；
Pressure relief opening is offered on the valve body at the valve bottom, the pressure relief opening is connected with the pressure-releasing chamber.
2. relief valve as claimed in claim 1, it is characterised in that first is equipped between the pressure release spring and the valve bottom and is adjusted
Nut is saved, first adjusting nut is screwed on first guide rod.
3. relief valve as claimed in claim 2, it is characterised in that be equipped between the fuel feeding spring and the pressure release seal
Second adjusting nut, second adjusting nut are screwed on second guide rod.
4. relief valve as claimed in claim 3, it is characterised in that the pressure release seal groove is the groove that section is triangle；
The pressure release seal includes a disk, and it is the close of triangle that the disk, which is equipped with the matched section of pressure release seal groove,
Seal bulge loop.
5. relief valve as claimed in claim 4, it is characterised in that be equipped with the first sealing material layer in the pressure release seal groove.
6. relief valve as claimed in claim 5, it is characterised in that the fuel feeding seal groove is to be matched with described for oil seal
Round platform connected in star.
7. relief valve as claimed in claim 6, it is characterised in that be equipped with the second sealing material layer in the fuel feeding seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884723.1A CN106438542B (en) | 2016-10-10 | 2016-10-10 | relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884723.1A CN106438542B (en) | 2016-10-10 | 2016-10-10 | relief valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106438542A CN106438542A (en) | 2017-02-22 |
| CN106438542B true CN106438542B (en) | 2018-04-17 |
Family
ID=58172444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610884723.1A Active CN106438542B (en) | 2016-10-10 | 2016-10-10 | relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438542B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931198B (en) * | 2017-03-01 | 2019-12-13 | 河南大有能源股份有限公司常村煤矿 | Mechanical automatic pressure reducing and stabilizing valve |
| CN113074029A (en) * | 2021-04-14 | 2021-07-06 | 浙江尔格科技股份有限公司 | Oil pump pressure reducing valve and oil pump for internal combustion engine using same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4552172A (en) * | 1982-12-09 | 1985-11-12 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co. | Pressure-limiting hydraulic valve |
| DE3907152A1 (en) * | 1988-03-09 | 1989-09-21 | Zahnradfabrik Friedrichshafen | Pressure control valve |
| CN2081020U (en) * | 1990-09-18 | 1991-07-17 | 沈阳市变压器配件厂 | Pressure releasing valve |
| CN2583415Y (en) * | 2002-10-16 | 2003-10-29 | 天津特精液压股份有限公司 | Multifunctional hydraulic controlled valve for dumper |
| CN103453177A (en) * | 2013-08-13 | 2013-12-18 | 集美大学 | Dual-pipeline hydraulic safety valve |
| CN105402452A (en) * | 2015-12-11 | 2016-03-16 | 中国北方发动机研究所(天津) | Pressure relief valve |
-
2016
- 2016-10-10 CN CN201610884723.1A patent/CN106438542B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4552172A (en) * | 1982-12-09 | 1985-11-12 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co. | Pressure-limiting hydraulic valve |
| DE3907152A1 (en) * | 1988-03-09 | 1989-09-21 | Zahnradfabrik Friedrichshafen | Pressure control valve |
| CN2081020U (en) * | 1990-09-18 | 1991-07-17 | 沈阳市变压器配件厂 | Pressure releasing valve |
| CN2583415Y (en) * | 2002-10-16 | 2003-10-29 | 天津特精液压股份有限公司 | Multifunctional hydraulic controlled valve for dumper |
| CN103453177A (en) * | 2013-08-13 | 2013-12-18 | 集美大学 | Dual-pipeline hydraulic safety valve |
| CN105402452A (en) * | 2015-12-11 | 2016-03-16 | 中国北方发动机研究所(天津) | Pressure relief valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106438542A (en) | 2017-02-22 |
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