CN106523474B - relief valve - Google Patents
relief valve Download PDFInfo
- Publication number
- CN106523474B CN106523474B CN201610884713.8A CN201610884713A CN106523474B CN 106523474 B CN106523474 B CN 106523474B CN 201610884713 A CN201610884713 A CN 201610884713A CN 106523474 B CN106523474 B CN 106523474B
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- CN
- China
- Prior art keywords
- pressure release
- valve
- fuel feeding
- guide rod
- pressure
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Safety Valves (AREA)
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 pocket in valve body；Pressure release baffle plate is set in valve pocket, and valve pocket is divided into pressure-releasing chamber and working chamber；Pressure release baffle plate sets pressure release seal groove；The first guide rod is provided 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；Fuel feeding core is arranged on second guide rod, fuel feeding core includes fuel feeding guide pad and fuel feeding seal；Fuel feeding spring is arranged on second guide rod；Entrance is set on valve head, entrance sets fuel feeding seal groove；Limited in working chamber a plush copper；Oil-feed port is opened up on valve body between spacing plush copper and pressure release baffle plate；Pressure relief opening is opened up on the valve body at valve bottom；Pressure release core connects hand-operated valve by pull bar.Present invention design is simple, and compact-sized, small volume, technique is simple, and cost is cheap；Both the stability of oil-feed port oil pump capacity had been can guarantee that, and can avoids the oil refluence that pressure release is released.
Description
Technical field
The present invention relates to technical field of hydraulic pressure, 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, protection equipment and pipeline, prevent
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, it is the continuous pursuit of this area.
Pressure-relief valve structure of the prior art is complex, and technique is cumbersome, and cost is high.
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 pocket in the valve body；
The middle part of the valve pocket is provided with pressure release baffle plate, and the valve pocket is divided into pressure-releasing chamber and work by the pressure release baffle plate
Chamber；
The middle part of the pressure release baffle plate is provided with through hole, and the pressure release baffle plate is close provided 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 provided 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 pressure release guide pad, the pressure release being sequentially connected
Seal and the second guide rod；The pressure release seal is used cooperatively with the pressure release seal groove；Covered on first guide rod
Provided with pressure release spring, the pressure release spring is between the valve bottom and pressure release guide pad；
Fuel feeding core is arranged with second guide rod, the fuel feeding core includes the fuel feeding guide pad and circular cone being sequentially connected
The fuel feeding seal of shape；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 provided with entrance, and the entrance is provided with the fuel feeding seal groove being used cooperatively with the fuel feeding seal；
The displacement to the fuel feeding core is provided with the working chamber and carries out spacing spacing plush copper；
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 plate
Make chamber connection；
Pressure relief opening is offered on the valve body at the valve bottom, the pressure relief opening connects with the pressure-releasing chamber；
The pressure release core is connected with pull bar, and the pull bar is parallel with first guide rod；The tail end extension of the pull bar
Go out the valve bottom；The tail end of the pull bar is connected with the hand-operated valve located at the valve bottom.
Further, the first adjusting nut, first adjusting nut are provided between the pressure release spring and the valve bottom
It is screwed on first guide rod.
Further, the second adjusting nut is provided 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 disk is provided with the sealing bulge loop that the section matched with the pressure release seal groove is triangle.
Further, it is provided with the first sealing material layer in the pressure release seal groove.
Further, the fuel feeding seal groove is the round platform connected in star matched with the fuel feeding seal.
Further, it is provided with the second sealing material layer in the fuel feeding seal groove.
Further, the hand-operated valve includes supporting part and lever portion；
The supporting part is located at the valve bottom, has rod cavity among the supporting part, and being provided with the 3rd in the rod cavity is oriented to
Bar, the both ends of the 3rd guide rod are against the both ends of the rod cavity；
The supporting part is provided with towards the side of the tail end of the pull bar and penetrates hole, described to penetrate between hole and the valve bottom
Supporting part formed support base；
The supporting part is provided with break-through groove backwards to the side of the tail end of the pull bar；
One end of the lever portion and the tail end of the pull bar are hinged；The lever portion the other end warp described in penetrate hole,
Rod cavity and break-through groove are arranged in the supporting part, have reach through hole in the lever portion, and the 3rd guide rod is arranged in institute
State in reach through hole；
Be arranged with the 3rd spring on 3rd guide rod, the 3rd spring be located at the lever portion and the valve bottom it
Between.
Beneficial effects of the present invention are：
Present invention design is simple, and compact-sized, small volume, technique is simple, and cost is cheap；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 closely presses with pressure release seal groove, the oil refluence for avoiding pressure release from releasing；Manually manual pressure release can also be carried out by valve, used
Flexibly.
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 the required accompanying drawing used 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, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of one embodiment of the invention；
Fig. 2 is the mplifying structure schematic diagram at hand-operated valve.
Wherein：
1st, valve body；2nd, valve bottom；3rd, valve head；4th, pressure release baffle plate；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 encapsulant
Layer；14th, pressure release spring；15th, the first adjusting nut；16th, fuel feeding guide pad；17th, fuel feeding 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；26th, pull bar；27th, hand-operated valve；28th, supporting part；29th, lever portion；30th, rod cavity；31st, the 3rd guide rod；32nd, hole is penetrated；
33rd, support base；34th, break-through groove；35th, reach through hole；36th, the 3rd spring.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme 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, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong 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 pocket, and valve body 1 and valve pocket are all cylinder.The middle part of the valve pocket is provided with pressure release baffle plate 4, pressure release
Baffle plate 4 is circle, and the excircle of pressure release baffle plate 4 is bonded with the inwall of valve body 1, and the valve pocket is divided into by the pressure release baffle plate 4
Pressure-releasing chamber 5 and working chamber 6.The middle part of the pressure release baffle plate 4 is provided with through hole, the pressure release baffle plate 4 towards the pressure-releasing chamber 5 one
Side is provided 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 provided 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, the guide rod 11 of pressure release seal 10 and second of secondary connection；The pressure release seal 10 seals with the pressure release
Groove 7 is used cooperatively, and in the present embodiment, the pressure release seal groove 7 is the groove that section is triangle；The pressure release seal 10 wraps
A disk is included, the disk is provided with the sealing bulge loop 12 that the section matched with the pressure release seal groove 7 is triangle, described to let out
The first sealing material layer 13 is provided with densification sealing groove 7, to improve sealing；Pressure release spring is arranged with first guide rod 8
14, the pressure release spring 14 is between the valve bottom 2 and pressure release guide pad 9.In the present embodiment, the pressure release spring 14 and institute
State and be provided with the first adjusting nut 15 between valve bottom 2, first adjusting nut 15 is screwed on first guide rod 8.It can lead to
The position of the first adjusting nut 15 is overregulated to adjust the pressure of pressure release spring 14.
Second guide rod 11 is located on the axle center of the valve pocket, and fuel feeding core is arranged with second guide rod 11, described
Fuel feeding core includes the fuel feeding seal 17 of the fuel feeding guide pad 16 being sequentially connected and cone；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 provided 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 provided with entrance 20, and the entrance 20 is provided with the fuel feeding being used cooperatively with the fuel feeding seal 17
Seal groove 21.In the present embodiment, the fuel feeding seal groove 21 is the round platform connected in star matched with the fuel feeding seal 17, described
The second sealing material layer 22 is provided with fuel feeding seal groove 21, to ensure sealing.
The displacement to the fuel feeding core is provided with the working chamber 6 and carries out spacing spacing plush copper 23.In the present embodiment, limit
The quantity of position plush copper 23 is two, is relatively arranged on the inwall of valve pocket, the gap between two spacing plush coppers 23 can allow to supply
Oily guide pad 16 is by that but can stop fuel feeding seal 17, to realize position-limiting action, will not stop passing through for oil again.
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 plate 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.
Referring to Fig. 2, the pressure release core is connected with pull bar 26, and the pull bar 26 is parallel with first guide rod 8；The drawing
The tail end of bar 26 extends the valve bottom 2；The tail end of the pull bar 26 is connected with the hand-operated valve 27 located at the valve bottom 2.This reality
Apply in example, the hand-operated valve 27 includes supporting part 28 and lever portion 29；The supporting part 28 is located at the valve bottom 2, the support
There is rod cavity 30 among portion 28, be provided with the 3rd guide rod 31 in the rod cavity 30, the both ends of the 3rd guide rod 31 are against institute
State the both ends of rod cavity 30；The supporting part 28 is provided with towards the side of the tail end of the pull bar 26 and penetrates hole 32, described to penetrate hole
Supporting part 28 between 32 and the valve bottom 2 forms support base 33；The supporting part 28 backwards to the pull bar 26 tail end one
Side is provided with break-through groove 34；One end of the lever portion 29 and the tail end of the pull bar 26 are hinged；The other end of the lever portion 29
It is arranged in through hole 32, rod cavity 30 and the break-through groove 34 of penetrating in the supporting part 28, there is reach through hole in the lever portion 29
35, the 3rd guide rod 31 is arranged in the reach through hole 35, and the diameter of reach through hole 35 is greater than the 3rd guide rod 31 here
Diameter so that lever portion 29 can be moved in the axial direction of lever portion 29, and caused skew is pulled out to adapt to pull bar 26；
The 3rd spring 36 is arranged with 3rd guide rod 31, the 3rd spring 36 is located at the lever portion 29 and the valve bottom 2
Between.
When the present embodiment works, oil enters from entrance 20, and fuel feeding spring 18 is compressed in the presence of oil pressure, after fuel feeding core
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 closely presses with pressure release seal groove 7, avoids what pressure release was released
Oil flows backwards.
Manually manual pressure release can be carried out by valve 27, press the tail end of lever portion 29, then lever portion 29 is with support base 33
Rotated for fulcrum, pull bar 26 is pulled out, and then moved after driving pressure release core, realize pressure release.After the completion of pressure release, lever portion 29 exists
Resetted in the presence of the spring 36 of pressure release spring 14 and the 3rd, the 3rd spring 36 be set, booster action is played for pressure release spring 36,
Improve the sealing of pressure release seal 10 and the reset function of pressure release core.
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
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (8)
1. a kind of relief valve, including valve body, the both ends of the valve body are respectively valve bottom and valve head, are valve pocket in the valve body；
Characterized in that, the middle part of the valve pocket is provided with pressure release baffle plate, the valve pocket is divided into pressure-releasing chamber by the pressure release baffle plate
And working chamber；
The middle part of the pressure release baffle plate is provided with through hole, and the pressure release baffle plate seals towards the side of the pressure-releasing chamber provided with pressure release
Groove, the pressure release seal groove surround the through hole one week；
The first guide rod is provided 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 pressure release guide pad, the pressure release sealing being sequentially connected
Part and the second guide rod；The pressure release seal is used cooperatively with the pressure release seal groove；It is arranged with first guide rod
Pressure release spring, the pressure release spring is between the valve bottom and pressure release guide pad；
Fuel feeding core is arranged with second guide rod, the fuel feeding core includes the fuel feeding guide pad being sequentially connected and cone
Fuel feeding 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 provided with entrance, and the entrance is provided with the fuel feeding seal groove being used cooperatively with the fuel feeding seal；
The displacement to the fuel feeding core is provided with the working chamber and carries out spacing spacing plush copper；
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 plate
Connection；
Pressure relief opening is offered on the valve body at the valve bottom, the pressure relief opening connects with the pressure-releasing chamber；
The pressure release core is connected with pull bar, and the pull bar is parallel with first guide rod；The tail end of the pull bar extends institute
State valve bottom；The tail end of the pull bar is connected with the hand-operated valve located at the valve bottom.
2. relief valve as claimed in claim 1, it is characterised in that first is provided 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 provided 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 provided with the section matched with the pressure release seal groove,
Seal bulge loop.
5. relief valve as claimed in claim 4, it is characterised in that be provided 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 the fuel feeding seal
Round platform connected in star.
7. relief valve as claimed in claim 6, it is characterised in that be provided with the second sealing material layer in the fuel feeding seal groove.
8. relief valve as claimed in claim 7, it is characterised in that the hand-operated valve includes supporting part and lever portion；
The supporting part is located at the valve bottom, has rod cavity among the supporting part, the 3rd guide rod, institute are provided with the rod cavity
The both ends for stating the 3rd guide rod are against the both ends of the rod cavity；
The supporting part is provided with towards the side of the tail end of the pull bar and penetrates hole, the branch penetrated between hole and the valve bottom
Support part forms support base；
The supporting part is provided with break-through groove backwards to the side of the tail end of the pull bar；
One end of the lever portion and the tail end of the pull bar are hinged；Hole, rod cavity are penetrated described in the other end warp of the lever portion
It is arranged in break-through groove in the supporting part, there is reach through hole in the lever portion, the 3rd guide rod is arranged in described wear
In through hole；
The 3rd spring is arranged with 3rd guide rod, the 3rd spring is between the lever portion and the valve bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884713.8A CN106523474B (en) | 2016-10-10 | 2016-10-10 | relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884713.8A CN106523474B (en) | 2016-10-10 | 2016-10-10 | relief valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106523474A CN106523474A (en) | 2017-03-22 |
| CN106523474B true CN106523474B (en) | 2018-01-16 |
Family
ID=58331507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610884713.8A Active CN106523474B (en) | 2016-10-10 | 2016-10-10 | relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106523474B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112017000009T5 (en) * | 2017-04-20 | 2019-03-21 | Huizhou Kete Measure&Control Engineering Co., Ltd. | Electrohydraulic servo amplifier cylinder |
| CN115646419A (en) * | 2022-12-27 | 2023-01-31 | 山东天弘化学有限公司 | Petrochemical engineering safety reation kettle |
Citations (7)
| 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 |
| CN2090904U (en) * | 1991-01-10 | 1991-12-18 | 中国科学技术大学 | Safety valve for hot water device |
| CN2113216U (en) * | 1992-01-30 | 1992-08-19 | 长沙铁道学院 | Automatic discharging valve of air press for car |
| CN203258123U (en) * | 2013-03-14 | 2013-10-30 | 艾欧史密斯(中国)热水器有限公司 | Decompression valve |
| CN204114258U (en) * | 2014-07-28 | 2015-01-21 | 凯迈（洛阳）气源有限公司 | A kind of pressure relief valve |
| CN105402452A (en) * | 2015-12-11 | 2016-03-16 | 中国北方发动机研究所(天津) | Pressure relief valve |
| CN205298704U (en) * | 2016-01-05 | 2016-06-08 | 淮南市矿用电子技术研究所 | Graded flow guide pressure relief valve |
-
2016
- 2016-10-10 CN CN201610884713.8A patent/CN106523474B/en active Active
Patent Citations (7)
| 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 |
| CN2090904U (en) * | 1991-01-10 | 1991-12-18 | 中国科学技术大学 | Safety valve for hot water device |
| CN2113216U (en) * | 1992-01-30 | 1992-08-19 | 长沙铁道学院 | Automatic discharging valve of air press for car |
| CN203258123U (en) * | 2013-03-14 | 2013-10-30 | 艾欧史密斯(中国)热水器有限公司 | Decompression valve |
| CN204114258U (en) * | 2014-07-28 | 2015-01-21 | 凯迈（洛阳）气源有限公司 | A kind of pressure relief valve |
| CN105402452A (en) * | 2015-12-11 | 2016-03-16 | 中国北方发动机研究所(天津) | Pressure relief valve |
| CN205298704U (en) * | 2016-01-05 | 2016-06-08 | 淮南市矿用电子技术研究所 | Graded flow guide pressure relief valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106523474A (en) | 2017-03-22 |
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