CN109306980A - A kind of reversal valve - Google Patents
A kind of reversal valve Download PDFInfo
- Publication number
- CN109306980A CN109306980A CN201811313196.4A CN201811313196A CN109306980A CN 109306980 A CN109306980 A CN 109306980A CN 201811313196 A CN201811313196 A CN 201811313196A CN 109306980 A CN109306980 A CN 109306980A
- Authority
- CN
- China
- Prior art keywords
- spool
- valve
- axial
- center hole
- gland
- 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
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
-
- 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
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide 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
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
Abstract
The present invention relates to a kind of reversal valves, it includes valve component, the axial center hole and left and right guiding movement that left and right extension is equipped in valve component are assemblied in the spool in axial center hole, axial center hole for the spool that spool penetrates penetrates mouth in having on the left end end face of valve component, the feed pathway radially extended being connected with axial center hole and liquid outlet channel are additionally provided in valve component, slidable fit is in axial center hole with for controlling feed pathway and liquid outlet channel on-off for spool, liquid outlet channel and feed pathway successively arranged for interval from left to right；The left end end face of valve component is equipped with the axial intercommunicating pore being connected with liquid outlet channel, sealing slidable fit has piston in axial intercommunicating pore, reversal valve further includes seperated is installed on the end face of valve component left end to prevent spool towards the valve deck of left abjection, there is the closure part for blocking axial intercommunicating pore from the left side on valve deck, elastic component is pressed between closure part and piston and/or closure part, piston and valve component are encircled into closed air cavity.
Description
Technical field
The present invention relates to a kind of reversal valves.
Background technique
In traditional hydraulic system, control and reversal valve (such as 2/2-way electromagnetism for changing hydraulic system liquid flow path direction
Valve etc.) it is relatively conventional valve class, reversal valve generally includes valve body, feed pathway and liquid outlet channel is opened up on valve body, in valve body
It is inside provided with spool, controls the on-off between feed pathway and liquid outlet channel using the change of spool and valve body relative position, with
Meet requirement of the system to liquid flow path direction.Under normal conditions, feed pathway is connected with oil pump, the liquid of liquid outlet channel and subsequent match
Pressure system is connected.
Flow of the reversal valve in the moment of commutation, liquid outlet channel increases suddenly, pressure peak is generated, to subsequent hydraulic
System causes stress impact, this compression shock be for hydraulic system it is harmful, due to the presence of compression shock, cause
The element of liquid channel rear end needs to guarantee the impact resistance of element in design and specific selection；Due to depositing for compression shock
So that the elements such as pipe fitting, screw in hydraulic system are easy to happen loosening.In conclusion in liquid outlet channel flow it is prominent
Impact failure can be caused to the components in matched hydraulic system by so increasing, to the impact resistance of components in hydraulic system
More stringent requirements are proposed, increases the manufacturing cost of product.
Summary of the invention
The purpose of the present invention is to provide a kind of reversal valves, to solve reversal valve liquid outlet channel in commutation in the prior art
In flow increase suddenly and lead to the technical issues of components in matched hydraulic system are vulnerable to impact failure.
To achieve the above object, the technical solution of reversal valve of the present invention is: a kind of reversal valve, including valve component, valve body
The axial center hole and left and right guiding movement that left and right extension is equipped in component are assemblied in the spool in axial center hole, axial centre
Hole for the spool that spool penetrates penetrates mouth in having on the left end end face of valve component, is additionally provided in valve component and axial centre
The connected feed pathway radially extended in hole and liquid outlet channel, the spool in axial center hole slidable fit for controlling
Feed pathway and liquid outlet channel on-off, liquid outlet channel and feed pathway successively arranged for interval from left to right；The left end of valve component
End face is equipped with the axial intercommunicating pore being connected with liquid outlet channel, and sealing slidable fit has piston in axial intercommunicating pore, and reversal valve is also
It is installed on the end face of valve component left end including fission to prevent spool towards the valve deck of left abjection, has on valve deck from the left side and block
The closure part of the axial direction intercommunicating pore, is pressed with elastic component and/or closure part, piston and valve component between closure part and piston
It is encircled into closed air cavity.
The beneficial effects of the present invention are: in use, when spool is moved to feed pathway and liquid outlet channel under external force
When the position of connection, the flow in liquid outlet channel increases suddenly, and piston is pushed to move with compression elastic piece and/or closed air cavity,
The volume for increasing liquid outlet channel alleviates hydraulic shock active force, reduces the momentum effect that subsequent hydraulic system is born, effectively
The components in hydraulic system are alleviated to be hit the degree of damage.After flow in liquid outlet channel becomes smaller, piston is in elastic component
And/or it is moved backward under the active force of closed air cavity.In the present invention, valve component and valve deck split settings in reversal valve lead to
The intercommunicating pore that connection liquid outlet channel is opened up on the left end end face of valve component is crossed to form plunger shaft, valve deck is blocking intercommunicating pore
While, the closure part on valve deck can block axial intercommunicating pore from the left side, the overall structure processing of reversal valve and assemble
Cheng Jun is more convenient.
Further, the valve deck includes that lid is mounted in the end cap on the end face of valve component left end, is inserted into axial intercommunicating pore
Gland, gland is in the right of the end cap, the elastic component is pressed between the gland and piston.
The effect of this programme is that gland is arranged apart with end cap, and gland is inserted into axial intercommunicating pore, gland and piston it
Between be pressed elastic component, gland exists independently of end cap, can be realized the pre- press fitting to elastic component, meanwhile, facilitate adjusting elastic component
Pre compressed magnitude.
Further, in the axial intercommunicating pore, the right side of the end cap is pressed in gland the gland elastic conjunction
On with prevent gland by axial intercommunicating pore towards left abjection.
The effect of this programme is that for gland elastic conjunction in axial intercommunicating pore, assembly method is simple, meanwhile, end cap
Right side presses against on gland, can prevent gland by the left-hand thrust of elastic component it is excessive and by deviating from axial intercommunicating pore.
Further, on the opposite side of the gland and piston integrally formed with or seperated fixed restraining position ring block, it is described
Elastic component is the energy-stored spring that both ends are flush-mounted in corresponding stop collar.
The effect of this programme is, by the way that stop collar is arranged, and the both ends of energy-stored spring is made to be inlaid in corresponding stop collar
It is interior, it can guarantee that energy-stored spring is more steady in compression and release, prevent radial-play.
Further, the end cap is equipped with the spool punched out being pierced by for spool towards a left side, and the internal diameter of spool punched out is small
In the internal diameter of the axial center hole, the spool includes major diameter section in axially centered hole and by wearing in spool punched out
Path section out, the hole of spool punched out along for cooperating with spool block with prevent spool by valve component towards left abjection.
The effect of this programme is, sets major diameter section and path section for spool, and aperture is arranged on end cap and is less than axis
To the spool punched out of centre bore, block is carried out along to spool by the hole of spool punched out, prevents spool towards left abjection.
Further, valve component includes the valve body equipped with the axial center hole, feed pathway and liquid outlet channel, described
Axial center hole or so runs through the valve body, and valve component further includes separate cover on valve body right end end face and blocks in axial direction
The bottom plate of heart hole right-end openings.
The effect of this programme is that valve component is made of the valve body of fission arrangement and bottom plate, and axial center hole or so passes through
Valve body is worn, compared to blind hole is opened up on valve component, the mode for being arranged through hole is simpler, conveniently.
Detailed description of the invention
Fig. 1 is that reversal valve is in signal when feed pathway is not connected to liquid outlet channel in reversing valve embodiment of the present invention
Figure；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Description of symbols: 1- liquid outlet channel；2- valve body；3- feed pathway；4- bottom plate；5- anticollision spring；6- annular chamber；
700- spool；7- spool major diameter section；8- reset spring；9- spool path section；10- end cap；11- gland；12- piston；13- anticreep
Step；14- energy-stored spring.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment of reversal valve of the invention, as shown in Figure 1 to Figure 2, the reversal valve in the present embodiment are two two
Three-way electromagnetic valve.
Reversal valve includes valve body 2, and 2 center of valve body offers perforative axial center hole, along a left side in axial center hole
Right guiding movement is equipped with spool 700, is packaged with end cap 10 and bottom plate 4, specific assembly method respectively in the left and right ends of valve body 2
To be bolted and (certainly, can be attached in other embodiments using other modes, such as press fitting), to guarantee end cap
Between 10 and valve body 2, assembly is sealed between bottom plate 4 and valve body 2, prevents oil liquid from oozing out, in end cap 10 and 2 axial abutment surface of valve body
Between, between 2 axial abutment surface of bottom plate 4 and valve body be provided with sealing ring (unmarked in figure).Aperture is offered on end cap 10
Less than the spool punched out in axial center hole aperture.
It is spaced apart from left to right on valve body 2 along axial direction and is equipped with liquid outlet channel 1 and feed pathway 3, liquid outlet channel 1 and feed liquor
Channel 3 is radially extending.Guiding is equipped with spool 700 in left-right direction in the axial center hole of valve body 2, and spool 700 includes
The spool path section 9 and spool major diameter section 7 of left and right arrangement, gap between spool major diameter section 7 and the axial center hole hole wall of valve body 2
Cooperation.Spool path section 9 in the spool punched out in end cap 10 by being pierced by, in order to avoid oil liquid leakage, in spool punched out
Hole wall is provided with sealing ring (not marking in figure).
As seen from Figure 1, spool punched out includes the big hole section on right side and the aperture section in left side, is equipped in big hole section
Reset spring 8, reset spring 8 are set in 9 outside of spool path section and press in by 9 structure of spool major diameter section 7 and spool path section
At step on.Annular chamber 6 is offered in spool major diameter section 7, the axial length of annular chamber 6 is greater than feed pathway 3 and out liquid
Axial spacing between channel 1 enables annular chamber 6 to be connected to feed pathway 3 and liquid outlet channel 1.In order to avoid spool 700 exists
Bottom plate 4 is hit under by 8 active force of reset spring, is equipped with blind hole in the right side opening of spool major diameter section 7, is embedded with anticollision bullet in blind hole
Spring 5, when 700 reset movement of spool to end of travel, anticollision spring 5 hits the right end of bottom plate 4, avoids spool 700 and bottom plate 4
Between hardness hit.
In reversal valve commutation, spool 700 is moved by external force (being electromagnetic force in the present embodiment) driving, spool 700
On annular chamber 6 be connected to feed pathway 3 and liquid outlet channel 1, in connection, the flow in liquid outlet channel 1 increases suddenly, in order to keep away
Exempt to cause biggish impact to the components in subsequent hydraulic system, buffer structure is provided on valve body 2, it is specific as follows.
By Fig. 1 in Fig. 2 it can be seen from offer on the left end end face of valve body 2 and to axially penetrate through the axial direction of valve body 2 and be connected to
Hole, axial intercommunicating pore are connected with liquid outlet channel 1, the Inner Constitution plunger shaft of axial intercommunicating pore.As seen from Figure 2, axial
Intercommunicating pore includes the flared section of left end and the necking section of right end, and elastic conjunction has gland 11, end cap 10 in the flared section of left end
Right side press against the left side of gland 11.The interlude of the necking section on right side and axial intercommunicating pore forms anticreep step 13, in axis
Into the interlude of intercommunicating pore, slidable fit has piston 12, and the two sides in order to guarantee piston 12 are relatively independent, in the outer of piston 12
Annular groove is offered on circumferential surface, is embedded with sealing ring (unmarked in figure) in annular groove.Piston 12 and gland 11 it
Between be disposed with energy-stored spring 14, specifically, on the opposite side of piston 12 and gland 11 be arranged restraining position ring block (the present embodiment
In, stop collar is integrally formed on piston 12 and gland 11, in other embodiments, can be arranged in such a way that fission is fixed
On piston and gland, such as the modes such as welding, bonding), the both ends of energy-stored spring 14 are inlaid in corresponding stop collar, energy
Enough guarantee stability of the energy-stored spring 14 in compression and release.In the present embodiment, pass through the elastic conjunction gland on valve body 2
11, it can be realized the prepackage of energy-stored spring 14.In practical operation, when the right end of energy-stored spring 14 is pressed on anticreep step 13
When, assembly gland 11 can carry out precommpression to energy-stored spring 14.
It is of the invention use process is as follows: as shown in Figure 1, spool 700 is under the action of reset spring 8 under original state
It keeps in the position shown in the figure 1, the annular chamber 6 in spool 700 is not connected to feed pathway 3 and liquid outlet channel 1, at energy-stored spring 14
In be fully deployed state (in other embodiments, when the model difference of energy-stored spring, under original state, energy-stored spring
Right end may be pressed on anticreep step).When spool 700 moves to left under electromagnetism power drive, 700 compression reseting spring of spool
8, annular chamber 6 is connected to feed pathway 3 and liquid outlet channel 1, and the flow in liquid outlet channel 1 increases rapidly, and liquid enters in plunger shaft
And towards left promotion piston 12,12 compressed energy-storage spring 14 of piston carries out energy storage buffer, reduces the impact force to hydraulic system, keep away
The components exempted from hydraulic system damage, in other words, design when do not need for protecting against shock the considerations of and select anti-impact
The components for hitting better performances thus reduce the manufacturing cost of product.Terminate the liquid into liquid outlet channel 1 in reversal valve commutation
When body flowing is stablized, piston 12 moves right under the energy storage release force effect of energy-stored spring 14 to the position of balance or movement
Position to where anticreep step 13.
In the present embodiment, energy-stored spring 14 constitutes elastic component, and in other embodiments, elastic component can be to be arranged in piston
Intracavitary rubber etc..
In the present embodiment, end cap 10, gland 11 constitute valve deck, and valve body 2 and bottom plate 4 constitute valve component.Gland 11
It constitutes closure part, in other embodiments, gland can be cancelled, at this point, being used to block the part structure of axial intercommunicating pore on valve deck
At closure part.In the present embodiment, 11 elastic conjunction of gland is in intercommunicating pore, can be using threaded connection in other embodiments
Mode by gland 11 assemble in axial intercommunicating pore, be assemblied in axial intercommunicating pore according to the mode of threaded connection, then not
Need end cap that must press against on gland.
In the present embodiment, the left end opening of axial center hole is that spool penetrates mouth in valve body 2.
In the present embodiment, the active force for pushing piston 12 to move backward, Er Qiefeng are provided by the elastic reset of elastic component
Stifled portion blocks axial intercommunicating pore, and the closed air cavity that closure part and piston 12 and valve component are encircled into also is capable of providing reversed
Active force.In other embodiments, it can only retain closed air cavity and cancel elastic component.In other embodiments, if closure part with
Unsealing assembles between intercommunicating pore, then only relies on elastic component also and the purpose of reverse push piston may be implemented.
Claims (6)
1. a kind of reversal valve, it is characterised in that: be equipped with including valve component, in valve component axial center hole that left and right extends and
Left and right guiding movement is assemblied in the spool in axial center hole, and axial center hole on the left end end face of valve component in having for valve
The spool that core penetrates penetrates mouth, and the feed pathway radially extended being connected with axial center hole and out liquid are additionally provided in valve component
Channel, the spool in axial center hole slidable fit with for controlling feed pathway and liquid outlet channel on-off, liquid outlet channel
With feed pathway successively arranged for interval from left to right；The left end end face of valve component is equipped with the axial direction being connected with liquid outlet channel and connects
Through-hole, the interior sealing slidable fit of axial intercommunicating pore have piston, and reversal valve further includes that fission is installed on the end face of valve component left end
There is the closure part that the axial intercommunicating pore is blocked from the left side to prevent spool towards the valve deck of left abjection, on valve deck, closure part with
It is pressed with elastic component between piston and/or closure part, piston and valve component are encircled into closed air cavity.
2. reversal valve according to claim 1, it is characterised in that: the valve deck includes that lid is mounted in valve component left end end face
On end cap, the gland that is inserted into axial intercommunicating pore, gland forms the closure part, and gland is in the right of the end cap, institute
It states and is pressed with the elastic component between gland and piston.
3. reversal valve according to claim 2, it is characterised in that: the gland elastic conjunction is in the axial intercommunicating pore
It is interior, the press of the right side of the end cap on gland with prevent gland by axial intercommunicating pore towards left abjection.
4. reversal valve according to claim 2, it is characterised in that: be integrally formed on the opposite side of the gland and piston
Have or seperated fixed restraining position ring block, the elastic component are the energy-stored spring that both ends are flush-mounted in corresponding stop collar.
5. according to reversal valve described in Claims 2 or 3 or 4, it is characterised in that: the end cap is equipped with and is pierced by for spool towards a left side
Spool punched out, the internal diameter of spool punched out is less than the internal diameter of the axial center hole, and the spool includes being located in axial direction
Major diameter section in heart hole and the path section by being pierced by spool punched out, the hole of spool punched out with spool block along for cooperating
With prevent spool by valve component towards left abjection.
6. reversal valve according to claim 1 or 2 or 3 or 4, it is characterised in that: valve component includes being equipped with the axial direction
The valve body of centre bore, feed pathway and liquid outlet channel, described axial center hole or so run through the valve body, and valve component further includes
Separate cover is mounted on valve body right end end face and blocks the bottom plate of axial center hole right-end openings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811313196.4A CN109306980A (en) | 2018-11-06 | 2018-11-06 | A kind of reversal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811313196.4A CN109306980A (en) | 2018-11-06 | 2018-11-06 | A kind of reversal valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109306980A true CN109306980A (en) | 2019-02-05 |
Family
ID=65221865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811313196.4A Pending CN109306980A (en) | 2018-11-06 | 2018-11-06 | A kind of reversal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109306980A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131433A (en) * | 2019-05-29 | 2019-08-16 | 河南航天液压气动技术有限公司 | A kind of switch valve increasing the response time |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2157400A (en) * | 1984-04-12 | 1985-10-23 | Bryne Mek Verksted As | Reversing valve |
| CN2721942Y (en) * | 2004-08-18 | 2005-08-31 | 象山液压气动设备有限公司 | Superhigh double-position and four-way solenoid reversing valve |
| JP2009014155A (en) * | 2007-07-07 | 2009-01-22 | Nabtesco Corp | Change valve with pressure release function |
| CN102102690A (en) * | 2011-04-01 | 2011-06-22 | 马鞍山科瑞达机械制造有限公司 | Wet solenoid directional valve capable of relieving hydraulic directional impact |
| CN102116380A (en) * | 2011-02-28 | 2011-07-06 | 东莞市尚正机电科技有限公司 | High-speed heavy-load linear reciprocating buffer reversing valve |
| CN102278330A (en) * | 2010-06-09 | 2011-12-14 | 中国商用飞机有限责任公司 | Hydraulic device |
| CN202531817U (en) * | 2012-04-11 | 2012-11-14 | 浙江海宏液压科技股份有限公司 | Buffer device of forklift control shift valve |
| CN103277534A (en) * | 2013-04-23 | 2013-09-04 | 河南航天液压气动技术有限公司 | Magnetic exchange valve |
| CN203272871U (en) * | 2013-05-10 | 2013-11-06 | 浙江工商职业技术学院 | Fast stable reversing valve |
| CN206377303U (en) * | 2017-01-05 | 2017-08-04 | 杭州宇卓液压技术有限公司 | Ultra-high pressure solenoid valve |
| CN207687087U (en) * | 2017-12-21 | 2018-08-03 | 湖南文理学院 | A kind of hydraulic gate Novel reversing valve structure with pooling feature |
-
2018
- 2018-11-06 CN CN201811313196.4A patent/CN109306980A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2157400A (en) * | 1984-04-12 | 1985-10-23 | Bryne Mek Verksted As | Reversing valve |
| CN2721942Y (en) * | 2004-08-18 | 2005-08-31 | 象山液压气动设备有限公司 | Superhigh double-position and four-way solenoid reversing valve |
| JP2009014155A (en) * | 2007-07-07 | 2009-01-22 | Nabtesco Corp | Change valve with pressure release function |
| CN102278330A (en) * | 2010-06-09 | 2011-12-14 | 中国商用飞机有限责任公司 | Hydraulic device |
| CN102116380A (en) * | 2011-02-28 | 2011-07-06 | 东莞市尚正机电科技有限公司 | High-speed heavy-load linear reciprocating buffer reversing valve |
| CN102102690A (en) * | 2011-04-01 | 2011-06-22 | 马鞍山科瑞达机械制造有限公司 | Wet solenoid directional valve capable of relieving hydraulic directional impact |
| CN202531817U (en) * | 2012-04-11 | 2012-11-14 | 浙江海宏液压科技股份有限公司 | Buffer device of forklift control shift valve |
| CN103277534A (en) * | 2013-04-23 | 2013-09-04 | 河南航天液压气动技术有限公司 | Magnetic exchange valve |
| CN203272871U (en) * | 2013-05-10 | 2013-11-06 | 浙江工商职业技术学院 | Fast stable reversing valve |
| CN206377303U (en) * | 2017-01-05 | 2017-08-04 | 杭州宇卓液压技术有限公司 | Ultra-high pressure solenoid valve |
| CN207687087U (en) * | 2017-12-21 | 2018-08-03 | 湖南文理学院 | A kind of hydraulic gate Novel reversing valve structure with pooling feature |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131433A (en) * | 2019-05-29 | 2019-08-16 | 河南航天液压气动技术有限公司 | A kind of switch valve increasing the response time |
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Application publication date: 20190205 |
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