CN107747639A - A kind of pressure relief for offshore wind generating - Google Patents
A kind of pressure relief for offshore wind generating Download PDFInfo
- Publication number
- CN107747639A CN107747639A CN201711140200.7A CN201711140200A CN107747639A CN 107747639 A CN107747639 A CN 107747639A CN 201711140200 A CN201711140200 A CN 201711140200A CN 107747639 A CN107747639 A CN 107747639A
- Authority
- CN
- China
- Prior art keywords
- oil
- slide bar
- blind hole
- pressure release
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000013536 elastomeric material Substances 0.000 claims description 4
- 210000001624 hip Anatomy 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 8
- 239000011049 pearl Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 102000011842 Serrate-Jagged Proteins Human genes 0.000 description 1
- 108010036039 Serrate-Jagged Proteins Proteins 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
- F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
- F16K15/1823—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for ball check 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
-
- 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
- F16K35/00—Means to prevent accidental or unauthorised actuation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of pressure relief for offshore wind generating, including：Valve body, valve body both sides are provided with oil inlet and oil-out, and the middle part of valve body is provided with blind hole, and the height of oil inlet is higher than the height of oil-out, and oil inlet, blind hole and oil-out form pressure release path；Slide bar, axis of the slide bar along blind hole moves up and down, T-shaped slider is provided with below slide bar, T-shaped slider includes baffle portion and the vertical portion perpendicular with plate washer portion, the first spring is provided with blind hole, the side of the vertical portion of T-shaped slider is provided with notch, and second spring and the decorative pearl on top of an official cap are provided with notch, and the diameter of the decorative pearl on top of an official cap is more than the diameter of oil-out；Sealing cap, sealing cap are sheathed on slide bar and are detachably connected with blind hole.Beneficial effect of the present invention：By way of pressing, the up and down motion of slide bar is realized, makes oil inlet, blind hole and oil-out composition pressure release path, completes pressure release, can complete pressure release without special spanner, substantially increase pressure release efficiency, it is simple to operate.
Description
Technical field
The present invention relates to offshore wind generating field, and in particular to a kind of pressure release knot for offshore wind generating
Structure.
Background technology
Offshore wind generating mainly converts wind energy into electric energy, and wherein hydraulic vane change unit is seawater wind-driven generator
Important component, the pressure release mouth structure of hydraulic vane change unit is as shown in figure 1, including valve body 1 and pressure release bar 2 at present, wherein
Valve body 1 is provided with oil inlet A and oil-out B, and during pressure release, oil inlet A and oil-out B form pressure release oil circuit 11, pressure release bar 2 and valve
Body 1 is threadedly coupled, it is not necessary to which during pressure release, pressure release bar 2 separates pressure release path；When needing pressure release, pressure release bar 2 is rotated, makes oil-feed
Mouth A connects with oil-out B, completes pressure release.
But the end 21 of existing pressure release bar 2 mostly be all hexagon socket head either outer-hexagonal head or manifold or
Crosshead is, it is necessary to need when pressure release that pressure release bar is unscrewed into pressure release with special spanner, operator leaves behind Special pull sometimes
If hand, pressure release can not be just completed, it is inconvenient；And it is connected through a screw thread, it is impossible to quickly finish pressure release, operating efficiency
It is beneath.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the invention provides a kind of pressure release knot for offshore wind generating
Structure.
To reach above-mentioned purpose, the technical solution adopted for the present invention to solve the technical problems is：
A kind of pressure relief for offshore wind generating, it is characterised in that including：
Valve body, the valve body both sides are provided with oil inlet and oil-out, and the middle part of the valve body is provided with blind hole, the oil inlet
Height be higher than the height of the oil-out, the oil inlet, blind hole and the oil-out form pressure release path, in the blind hole
Side wall is provided with positive stop, and the positive stop in the vertical direction is between the oil-out and oil inlet；
Slide bar, axis of the slide bar along the blind hole are moved up and down, and T-shaped slider, the T-shaped are provided with below the slide bar
Sliding block includes baffle portion and the vertical portion perpendicular with the plate washer portion, the first spring, first bullet being provided with the blind hole
One end of spring is connected with the vertical portion of the T-shaped slider, and the other end of first spring is connected with the bottom of the blind hole, institute
The side for stating the vertical portion of T-shaped slider is provided with notch, is provided with second spring and the decorative pearl on top of an official cap in the notch, and the one of the second spring
End is connected with the decorative pearl on top of an official cap, and the other end of the second spring is connected with the bottom of the notch, and the diameter of the decorative pearl on top of an official cap is more than
The diameter of the oil-out；
Sealing cap, the sealing cap are sheathed on the slide bar, and the sealing cap is detachably connected with the blind hole.
Further, the positive stop is provided with the sawtooth to match with the plate washer portion.
Further, the madial wall of the blind hole is additionally provided with the snap fit that section is right angled triangle, the use of the snap fit
Elastomeric material is made.
Further, the baffle portion is arranged with sealing ring, and the sealing ring is O-ring seals.
Further, the outside of the valve body is provided with the support frame that section is convex, is provided with and is used in the middle part of support frame as described above
Enable the through hole for the slide bar that finger presses.
Further, the top of the slide bar is provided with top end cap, and the section of the top end cap is arch, rectangle, fallen
One kind in triangle, circle.
Further, in addition to pressure release clamping mechanism, the pressure release clamping mechanism include what is be threadedly coupled with the slide bar
Rotating bar, the slide bar side wall are provided with through hole, and Pop-up sliding block is provided with the through hole, and the is arranged with the Pop-up sliding block
Three springs, the rotating bar are used to make the Pop-up sliding block radially movable.
Further, described rotating bar one end is inverted bathrocephaly, and the other end of the rotating bar is T-shaped, the bullet
Go out formula sliding block and be symmetrically arranged with 2 pieces, configuration V-shaped in the middle part of 2 pieces of Pop-up sliding blocks, two waists and the V of the bathrocephaly
Font matches.
Further, the angle of the V-shaped is 45 degree~60 degree.
It is using the beneficial effect of above-mentioned technical proposal：By way of pressing, the up and down motion of slide bar is realized, makes oil-feed
Mouth, blind hole and oil-out composition pressure release path, complete pressure release, can complete pressure release without special spanner, substantially increase and let out
Efficiency is pressed, it is simple to operate.
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 prior art.
Fig. 2 is one of structural representation of the present invention.
Fig. 3 is enlarged drawing C of the present invention structural representation.
Fig. 4 is pressure release state diagram of the present invention.
Fig. 5 is that the present invention sets serrate structural representation.
Fig. 6 is the structural representation that the present invention is provided with snap fit.
Fig. 7 is the structural representation that the present invention is provided with support frame.
Fig. 8 is one of structural representation of pressure release clamping mechanism of the present invention.
Fig. 9 is the two of the structural representation of pressure release clamping mechanism of the present invention.
Figure 10 is enlarged drawing E of the present invention structural representation.
Numeral and the title of the corresponding component represented by letter in figure：
1- valve bodies；2- pressure release bars；11- pressure release oil circuits；21- ends；
31- valve bodies；32- oil-outs；33- oil inlets；The springs of 34- first；The 35- decorative pearls on top of an official cap；36- second springs；37- slide bars；
38- sealing caps；39- top end caps；40-T shape sliding blocks；41- positive stops；42- baffle portions；43- notches；44- blind holes；51- is sawed
Tooth；52- snap fits；53- support frames；61- rotating bars；62- Pop-up sliding blocks；63- bathrocephalies；The springs of 64- the 3rd.
Embodiment
With reference to specific embodiment, present disclosure is described in further detail：
In order to reach the purpose of the present invention, as illustrated, being in one embodiment of the present invention：One kind is used for sea turn
The pressure relief of power generator, including：
Valve body 31, the both sides of valve body 31 are provided with oil inlet 33 and oil-out 32, and the middle part of valve body 31 is provided with blind hole 44, oil inlet
33 height is higher than the height of oil-out 32, in pressure release, it is ensured that the normal circulation of pressure release path, avoids producing backflow now
As oil inlet 33, blind hole 44 and oil-out 32 form pressure release path, and the madial wall of blind hole 44 is provided with positive stop 41, positive stop
41 in the vertical directions are between oil-out 32 and oil inlet 33；
Slide bar 37, axis of the slide bar 37 along blind hole 44 move up and down, and the lower section of slide bar 37 is provided with T-shaped slider 40, T-shaped slider 40
It is provided with the first spring 34 including baffle portion 42 and the vertical portion perpendicular with plate washer portion 42, in blind hole 44, the one of the first spring 34
End is connected with the vertical portion of T-shaped slider 40, and the other end of the first spring 34 is connected with the bottom of blind hole 44, and T-shaped slider 40 is erected
The side in straight portion is provided with notch 43, and second spring 36 and the decorative pearl on top of an official cap 35, one end and the decorative pearl on top of an official cap 35 of second spring 36 are provided with notch 43
Connection, the other end of second spring 36 are connected with the bottom of notch 43, and the diameter of the decorative pearl on top of an official cap 35 is more than the diameter of oil-out 32；
Sealing cap 38, sealing cap 38 are sheathed on slide bar 37, and sealing cap 38 is detachably connected with blind hole 44.
It is using the beneficial effect of above-mentioned technical proposal：By way of pressing, the up and down motion of slide bar is realized, makes oil-feed
Mouth, blind hole and oil-out composition pressure release path, complete pressure release, can complete pressure release without special spanner, substantially increase and let out
Efficiency is pressed, it is simple to operate.The height of oil inlet be higher than oil-out height, in pressure release, it is ensured that pressure release path it is normal
Circulation, avoid producing backflow phenomenon.The side of the vertical portion of T-shaped slider is provided with notch, and second spring and the decorative pearl on top of an official cap are provided with notch,
The diameter of the decorative pearl on top of an official cap is more than the diameter of oil-out, on the one hand, when without blowout job, the decorative pearl on top of an official cap is in the presence of second spring
Oil-out can be blocked, equivalent to the effect of check valve；On the other hand, positioning can also be played a part of, while when slide bar is pressed
When lower, the decorative pearl on top of an official cap can stretch into notch, realize moving downward for slide bar, open oil-out.Sealing cap can ensure slide bar along axle
To motion, the closing on valve body top can be ensured again.
The operation principle of the present invention is as follows：In not pressure release, slide bar is limited and moved by positive stop, work of the decorative pearl on top of an official cap in spring
Oil-out is withstood under, ensures the closing of pressure release path；When needing pressure release, downwards by drop shot, the decorative pearl on top of an official cap is to left movement, compression the
Two springs, the decorative pearl on top of an official cap move into notch, while the first spring is compressed by slide bar, during slide bar moves downward, oil-out with it is blind
Hole connects, and so as to realize the connection of pressure release path, oil flows out from oil inlet by blind hole from oil-out, realizes pressure release.Pressure release is complete
Cheng Hou, slide bar is unclamped, slide bar moves upward to postive stop baffle in the presence of the first spring and gone out, while second spring is replied and will pushed up
Pearl orients oil-out, closes oil-out.
In another embodiment of the present invention, positive stop 41 is provided with the sawtooth to match with plate washer portion 42
51。
It is using the beneficial effect of above-mentioned technical proposal：When baffle portion contacts with positive stop, sawtooth can realize
Guide effect during one spring-return, positive stop is sealed with baffle portion, ensure not connect between oil inlet and oil-out.
In another embodiment of the present invention, the madial wall of blind hole 44 is additionally provided with section as right angled triangle
Snap fit 52, snap fit are made of elastomeric material.
It is using the beneficial effect of above-mentioned technical proposal：By setting buckle made of elastomeric material, it is possible to achieve first
Guide effect during spring-return, make baffle portion between buckle and positive stop, ensure that slide bar will not be excessive because of oil pressure
And itself the first spring of compression moves downward, unnecessary blowout job is caused.
In another embodiment of the present invention, baffle portion 42 is arranged with sealing ring, and sealing ring seals for O shapes
Circle.
In another embodiment of the present invention, the outside of valve body 31 is provided with the support frame 53 that section is convex,
The middle part of support frame 53 is provided with the through hole for the slide bar 37 for being used for enabling finger to press.
It is using the beneficial effect of above-mentioned technical proposal：By setting support frame, false touch when slide bar can be avoided exposed
Touch.
In another embodiment of the present invention, the top of slide bar 37 is provided with top end cap 39, top end cap 39
Section be arch, rectangle, del, it is circular in one kind.
In another embodiment of the present invention, in addition to pressure release clamping mechanism, pressure release clamping mechanism include with
The rotating bar 61 that slide bar 37 is threadedly coupled, the side wall of slide bar 37 are provided with through hole, Pop-up sliding block 62, Pop-up sliding block are provided with through hole
The 3rd spring 64 is arranged with 62, rotating bar 61 is used to make Pop-up sliding block 62 radially movable.
It is using the beneficial effect of above-mentioned technical proposal：By setting pressure release clamping mechanism, in pressure release, will can slide
Lever lock stops, and without being pinned always with hand.When needing locking, rotating bar is rotated, rotating bar moves downward in the presence of screw thread,
Bathrocephaly extrudes Pop-up sliding block, and Pop-up sliding block is radially extruded, and protrudes from slide bar and be located at positive stop lower section, and spacing
Screens during pressure release is realized in block contact.
In another embodiment of the present invention, the one end of rotating bar 61 is inverted bathrocephaly 63, rotating bar 61
The other end be T-shaped, Pop-up sliding block 62 is symmetrically arranged with 2 pieces, 2 pieces of middle part configuration V-shaped of Pop-up sliding block 62, bathrocephaly 63
Two waists match with V-shaped.
In another embodiment of the present invention, the angle of V-shaped is 45 degree~60 degree.
It is using the beneficial effect of above-mentioned technical proposal：The angle can be such that Pop-up sliding block more flexibly radially transports
It is dynamic, realize quick screens.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and be carried out, and it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, it should all cover within the scope of the present invention.
Claims (9)
- A kind of 1. pressure relief for offshore wind generating, it is characterised in that including：Valve body, the valve body both sides are provided with oil inlet and oil-out, and the middle part of the valve body is provided with blind hole, the height of the oil inlet For degree higher than the height of the oil-out, the oil inlet, blind hole and the oil-out form pressure release path, the blind hole madial wall Provided with positive stop, the positive stop in the vertical direction is between the oil-out and oil inlet；Slide bar, axis of the slide bar along the blind hole are moved up and down, and T-shaped slider, the T-shaped slider are provided with below the slide bar The perpendicular vertical portion including baffle portion and with the plate washer portion, the blind hole is interior to be provided with the first spring, first spring One end is connected with the vertical portion of the T-shaped slider, and the other end of first spring is connected with the bottom of the blind hole, the T The side of the vertical portion of shape sliding block is provided with notch, and second spring and the decorative pearl on top of an official cap, one end of the second spring are provided with the notch It is connected with the decorative pearl on top of an official cap, the other end of the second spring is connected with the bottom of the notch, and the diameter of the decorative pearl on top of an official cap is more than institute State the diameter of oil-out；Sealing cap, the sealing cap are sheathed on the slide bar, and the sealing cap is detachably connected with the blind hole.
- 2. a kind of pressure relief for offshore wind generating according to claim 1, it is characterised in that described spacing Block is provided with the sawtooth to match with the plate washer portion.
- A kind of 3. pressure relief for offshore wind generating according to claim 2, it is characterised in that the blind hole Madial wall be additionally provided with the snap fit that section is right angled triangle, the snap fit is made of elastomeric material.
- A kind of 4. pressure relief for offshore wind generating according to claim 3, it is characterised in that the baffle plate Portion is arranged with sealing ring, and the sealing ring is O-ring seals.
- A kind of 5. pressure relief for offshore wind generating according to claim 4, it is characterised in that the valve body Outside be provided with the support frame that section is convex, the logical of the slide bar that is used for enabling finger to press is provided with the middle part of support frame as described above Hole.
- A kind of 6. pressure relief for offshore wind generating according to claim 5, it is characterised in that the slide bar Top be provided with top end cap, the section of the top end cap is arch, rectangle, del, it is circular in one kind.
- 7. according to a kind of pressure relief for offshore wind generating described in claim 1-6 any one, its feature exists In in addition to pressure release clamping mechanism, the pressure release clamping mechanism includes the rotating bar being threadedly coupled with the slide bar, the slide bar Side wall is provided with through hole, is provided with Pop-up sliding block in the through hole, the 3rd spring, the rotation are arranged with the Pop-up sliding block Bar is used to make the Pop-up sliding block radially movable.
- A kind of 8. pressure relief for offshore wind generating according to claim 7, it is characterised in that the rotation Bar one end is inverted bathrocephaly, and the other end of the rotating bar is T-shaped, and the Pop-up sliding block is symmetrically arranged with 2 pieces, 2 pieces Configuration V-shaped in the middle part of the Pop-up sliding block, two waists and the V-shaped of the bathrocephaly match.
- A kind of 9. pressure relief for offshore wind generating according to claim 8, it is characterised in that the V words The angle of shape is 45 degree~60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711140200.7A CN107747639A (en) | 2017-11-16 | 2017-11-16 | A kind of pressure relief for offshore wind generating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711140200.7A CN107747639A (en) | 2017-11-16 | 2017-11-16 | A kind of pressure relief for offshore wind generating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107747639A true CN107747639A (en) | 2018-03-02 |
Family
ID=61250636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711140200.7A Pending CN107747639A (en) | 2017-11-16 | 2017-11-16 | A kind of pressure relief for offshore wind generating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107747639A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878134A (en) * | 2011-07-15 | 2013-01-16 | 江苏福事特液压技术有限公司 | Hydraulic control check valve |
| WO2013152549A1 (en) * | 2012-04-09 | 2013-10-17 | 台州巨力工具有限公司 | Variable plunger piston pump |
| CN105351570A (en) * | 2015-11-23 | 2016-02-24 | 叶红 | Two-position two-way solenoid valve |
| CN105782460A (en) * | 2014-12-22 | 2016-07-20 | 宁波市镇海华力液压机电有限公司 | One-way throttle valve |
| WO2016158200A1 (en) * | 2015-03-30 | 2016-10-06 | アイシン・エィ・ダブリュ株式会社 | Electromagnetic valve and transmission-use fuel pressure control device using electromagnetic valve |
| CN106286451A (en) * | 2016-10-10 | 2017-01-04 | 合肥协力液压科技有限公司 | Relief valve |
| CN106641347A (en) * | 2017-03-13 | 2017-05-10 | 广州旭特铝业科技有限公司 | Pressure-relief one-way valve |
| CN206572028U (en) * | 2017-03-13 | 2017-10-20 | 广州旭特铝业科技有限公司 | Can pressure release type check valve |
| CN207406853U (en) * | 2017-11-16 | 2018-05-25 | 南通精维风电科技有限公司 | A kind of pressure relief for offshore wind generating |
-
2017
- 2017-11-16 CN CN201711140200.7A patent/CN107747639A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878134A (en) * | 2011-07-15 | 2013-01-16 | 江苏福事特液压技术有限公司 | Hydraulic control check valve |
| WO2013152549A1 (en) * | 2012-04-09 | 2013-10-17 | 台州巨力工具有限公司 | Variable plunger piston pump |
| CN105782460A (en) * | 2014-12-22 | 2016-07-20 | 宁波市镇海华力液压机电有限公司 | One-way throttle valve |
| WO2016158200A1 (en) * | 2015-03-30 | 2016-10-06 | アイシン・エィ・ダブリュ株式会社 | Electromagnetic valve and transmission-use fuel pressure control device using electromagnetic valve |
| CN105351570A (en) * | 2015-11-23 | 2016-02-24 | 叶红 | Two-position two-way solenoid valve |
| CN106286451A (en) * | 2016-10-10 | 2017-01-04 | 合肥协力液压科技有限公司 | Relief valve |
| CN106641347A (en) * | 2017-03-13 | 2017-05-10 | 广州旭特铝业科技有限公司 | Pressure-relief one-way valve |
| CN206572028U (en) * | 2017-03-13 | 2017-10-20 | 广州旭特铝业科技有限公司 | Can pressure release type check valve |
| CN207406853U (en) * | 2017-11-16 | 2018-05-25 | 南通精维风电科技有限公司 | A kind of pressure relief for offshore wind generating |
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