CN108571487A - A kind of electromagnetic type hydraulic control two-way shut-off valve - Google Patents
A kind of electromagnetic type hydraulic control two-way shut-off valve Download PDFInfo
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- CN108571487A CN108571487A CN201810735838.3A CN201810735838A CN108571487A CN 108571487 A CN108571487 A CN 108571487A CN 201810735838 A CN201810735838 A CN 201810735838A CN 108571487 A CN108571487 A CN 108571487A
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- 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
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- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to a kind of electromagnetic type hydraulic control two-way shut-off valves, it is characterised in that：Including valve body, third hydraulic fluid port and the 4th hydraulic fluid port are opened on valve body；Valve seat is provided with the first hydraulic fluid port, the second hydraulic fluid port on valve seat；First bushing, the second bushing and spool, spool divide the second bushing inner cavity to oil back chamber and control chamber, and the left and right of spool, which slides, can open and close the first hydraulic fluid port, the first through flow hole in spool, and the first spring is equipped in oil back chamber；First bushing is in ladder shaft-like, and counter balance pocket is formed in the thin axle portion right end of the first bushing；It is provided on first bushing to the second through flow hole, third through flow hole, the left and right sliding of spool can open and close third through flow hole；First damping hole, the second damping hole on second bushing side wall；Pilot solenoid valve in the axial passage left end of valve body is set, whether determining that third hydraulic fluid port is connected to second through flow hole whether pilot solenoid valve is by obtaining electric.With advantage simple and reasonable, that the low cut-off of manufacturing cost is reliable, spool pressure drop is small.
Description
Technical field
The present invention relates to a kind of shut-off valve more particularly to a kind of electromagnetic type hydraulic control two-way shut-off valves.
Background technology
In modern mechanical equipment, hydraulic system, dual check hydraulic circuit, wherein two-way shut-off valve have been widely applied
It is the key that this kind of system Hydraulic Elements, the quality of two-way stop valve performance directly affects the performance of host.It is existing two-way
Shut-off valve is divided into two kinds of board-like two-way shut-off valve and plug-in two-way shut-off valve by connection type, is installed in systems in order to reduce
System reliability is improved in space, generally uses plug-in two-way shut-off valve.Such as Patent No. ZL 201120147979.7, title
For the Chinese patent of " the normally closed double non-return solenoid valves of threaded insertion pilot ", a kind of electromagnetism two-way shut-off valve is disclosed, including every
Magnetic tube swivel nut determines iron, dynamic iron, coil, spring, and valve pocket, main valve plug and pilot valve, plunger tube swivel nut is hollow, and it is dynamic to be inside equipped with one
Iron；Determine iron and is set to plunger tube swivel nut rear end；Valve pocket is set to plunger tube swivel nut front end, has the first hydraulic fluid port and the second hydraulic fluid port；
The main valve plug of the double non-returns of energy is set in valve pocket, and pilot valve is set to the front end of dynamic iron, and moves forward and drive in the case where dynamic iron acts on
Dynamic aforementioned spool realizes the blocking of the first hydraulic fluid port and the second hydraulic fluid port.Although two-way stop may be implemented in the invention and Electromagnetic Control is led
It is logical, but have the following disadvantages：
1, the maximum pressure in two hydraulic fluid ports is introduced into the oil pocket of main valve plug rear end and lead to the pressure of oil pocket in order to realize
It crosses pilot valve and flows into two hydraulic fluid port mesolow areas, the first unidirectional damping hole, the second unidirectional damping are provided on main valve plug
Hole, third unidirectional damping hole, the 4th damping hole, and it is configured with the runner of corresponding four steel balls, three resilient keys and complexity, add
Work difficulty is big, process costs are high, assembly difficulty is also big.
2, it is used opened by pilot valve after, the oil of main valve plug rear end oil pocket is leaked into two by the selection of two steel balls
The lower hydraulic fluid port of pressure in a hydraulic fluid port, if there are back pressure in the relatively low hydraulic fluid port of pressure, the unlatching of main valve plug just by
It influences, main valve plug pressure drop can be caused excessive, fever is serious.
Invention content
It is simple and reasonable that one kind is provided the technical problem to be solved by the present invention is to present situation for the above-mentioned prior art,
The electromagnetic type hydraulic control two-way shut-off valve that manufacturing cost is low, cut-off is reliable, spool pressure drop is small.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of electromagnetic type hydraulic control two-way shut-off valve,
It is characterized in that：Include the valve body with axially extending bore, the third hydraulic fluid port being connected to axially extending bore and are provided on the side wall of valve body
Four hydraulic fluid ports；It is fixed on the valve seat of axially extending bore right end, the first hydraulic fluid port being connected to axially extending bore, valve are provided on the right side of valve seat
It is provided with the second hydraulic fluid port being connected to axially extending bore on the side wall of seat；First bushing, the second bushing and spool, the first bushing and second
Bushing is fixed in axially extending bore, spool be set in the second bushing and can left and right slide, the second bushing inner cavity is separated by spool
The right end of independent oil back chamber and control chamber, spool is pierced by the second bushing and coordinates with the first hydraulic fluid port, the left and right sliding energy of spool
First hydraulic fluid port is opened and closed, the first through flow hole for axially penetrating through and being connected to always with the first hydraulic fluid port, the oil return are equipped in spool
Intracavitary is equipped with the first spring, which, which acts on spool and spool holding is made to move to right, blocks the first hydraulic fluid port trend；
First bushing is in ladder shaft-like, and the right part of the first bushing is inserted into the inner cavity of the second bushing, the big axle portion periphery point of the first bushing
Sealing structure is equipped with not between axially extending bore and oil return cavity wall, the thin axle portion of the first bushing stretches into a left side for the first through flow hole
End is equipped with sealing structure between the thin axle portion periphery of the first bushing and the first through flow hole, to right in the thin axle portion of the first bushing
Counter balance pocket is formed in first through flow hole at end, oil pressure acts on the first active area of spool right end equal to balance in the first hydraulic fluid port
Intracavitary oil pressure acts on the second left and right area on spool；It is provided on first bushing second through-flow to be connected to third hydraulic fluid port
Hole is provided with to be connected to the third through flow hole of oil back chamber and the second through flow hole on the side wall of the thin axle portion of the first bushing；Second lining
It is provided with connection control chamber and the first damping hole of the 4th hydraulic fluid port on set side wall and be connected to oil back chamber and the second of the 4th hydraulic fluid port and damps
Hole；Pilot solenoid valve in the axial passage left end of valve body is set, pilot solenoid valve by it is electric whether determine third hydraulic fluid port with
Whether the second through flow hole connection.
Above-mentioned pilot solenoid valve includes guide valve blocks, guide's valve seat, pilot valve, second spring and Electromagnetic valve driving portions
Point；Guide's valve seat is fixed on the right side of guide valve blocks, and the 4th be connected to always with third hydraulic fluid port is provided on the side wall of guide's valve seat
The inner cavity of through flow hole, guide's valve seat is connected to the second through flow hole always, pilot valve be set to guide's valve seat in and can left and right slide,
It is provided with the 5th through flow hole being connected to always with the inner cavity of guide's valve seat in pilot valve, is provided on the side wall of pilot valve to even
7th through flow hole of logical 4th through flow hole and the 5th through flow hole, second spring, which is set in guide's valve seat and acts on pilot valve, to be made
It keeps moving to left trend, and pilot valve moves to left state, and the 7th through flow hole and the 4th through flow hole block, and pilot valve moves to right shape
State, the 7th through flow hole are connected to the 4th through flow hole；The electromagnetic drive part is divided into the left end of guide valve blocks, to drive guide
Spool moves left and right.The pilot solenoid valve topology layout is reasonable.
The left end of above-mentioned pilot valve is fixed with spring base, and the left end of the second spring is held on spring base, and second
The right end of spring is supported on guide's valve seat.Spring base is conducive to be formed with second spring and coordinate.
Above-mentioned spring socket sleeve is located in pilot valve, and the left end periphery of the pilot valve is arranged with axis retainer ring, the axis
Gear is formed to the bottom surface of spring base endoporus with retainer ring.The structure is conducive to the assembling of spring base, while ensureing moving up for spring base
It can be contacted with axis with retainer ring, and then pilot valve is driven to move up.
Above-mentioned Electromagnetic valve driving portions point include coil, flux sleeve, armature, push rod, and the flux sleeve inserting is fixed on guide
The upper end of valve body, coil are arranged and are relatively fixed in the periphery of flux sleeve, and the right end of coil is equipped with end cap seal, and armature is set to and leads
In magnetosheath and can left and right sliding, the push rod be threaded through in flux sleeve and can left and right sliding, left end and the armature cooperation of push rod pushes away
The right end of bar and the pilot valve coordinate, and moving to right for push rod can push pilot valve to move to right, and coil obtains electric, and armature is by flux sleeve
Being attracted to the right pushes push rod to move to right, coil losing electricity, and pilot valve drives push rod to move to left under second spring effect.It is electromagnetism above
A kind of concrete structure of valve drive part, also can be used existing other structures certainly.
The hand push rod of sliding can be controlled by being equipped on above-mentioned end cap, and hand push rod is contacted with armature so that hand push rod
Energy band moving armature moves to right.When coil burns out or fault occurs and need emergency operation, hand push rod is pushed up to the right, then hand
Dynamic push rod pushes armature, push rod to open pilot valve, and then controls spool and open.
Compared with the prior art, the advantages of the present invention are as follows：
1, simple in structure, main valve plug is easy to process, and overall cost is low.
2, it is provided with independent hydraulic fluid port C and carries out off-load, therefore the opening size of spool 5 will not be by hydraulic fluid port A and hydraulic fluid port B pressure
The influence of size, main valve plug pressure drop are small.
3, the forced area of spool 5 is balanced by the way that the first bushing and the second bushing is arranged, makes spool 5 not by hydraulic fluid port
A, the influence of hydraulic fluid port B pressure can reliably be in cut-off state.
Description of the drawings
Fig. 1 is the sectional view of the embodiment of the present invention；
Fig. 2 is the sectional view of pilot solenoid valve part in the embodiment of the present invention；
Fig. 3 is the hydraulic schematic diagram of the embodiment of the present invention.
Specific implementation mode
Below in conjunction with attached drawing embodiment, present invention is further described in detail.
As shown in Figures 1 to 3, it is a preferred embodiment of the present invention.
A kind of electromagnetic type hydraulic control two-way shut-off valve, it is characterised in that：Including
Valve body 1 with axially extending bore 11, be provided on the side wall of valve body 1 the third hydraulic fluid port C being connected to axially extending bore 11 and
4th hydraulic fluid port D.
It is fixed on the valve seat 6 of 11 right end of axially extending bore, first be connected to axially extending bore 11 is provided on the right side of valve seat 6
Hydraulic fluid port A is provided with the second hydraulic fluid port B being connected to axially extending bore 11 on the side wall of valve seat 6.
First bushing 2, the second bushing 3 and spool 5, the first bushing 2 and the second bushing 3 are fixed in axially extending bore 11, valve
Core 5 be set in the second bushing 3 and can left and right slide, 3 inner cavity of the second bushing is separated into independent oil back chamber 1a and control by spool 5
The right end of chamber 1b, spool 5 are pierced by the second bushing 3 and coordinate with the first hydraulic fluid port A, and the left and right sliding of spool 5 can open and close described first
Hydraulic fluid port A, spool 5 is interior to be equipped with the first through flow hole 51 for axially penetrating through and being connected to always with the first hydraulic fluid port A, is set in the oil back chamber 1a
There is the first spring 4, which, which acts on spool 5 and the holding of spool 5 is made to move to right, blocks the first hydraulic fluid port A trend.
First bushing 2 is in ladder shaft-like, and the right part of the first bushing 2 is inserted into the inner cavity of the second bushing 3, the first bushing 2
Big axle portion periphery is equipped with sealing structure between axially extending bore 11 and oil back chamber 1a inner walls respectively, and the thin axle portion of the first bushing 2 is stretched
Enter the left end of the first through flow hole 51, sealing structure is equipped between the thin axle portion periphery and the first through flow hole 51 of the first bushing 2, to
Oil pressure in counter balance pocket 5a, the first hydraulic fluid port A, which is formed, in the first through flow hole 51 of the thin axle portion right end of the first bushing 2 acts on spool
First active area D2 of 5 right ends is equal to oil pressure in counter balance pocket 5a and acts on the second left and right area D1 on spool 5.
The second through flow hole 21 to be connected to third hydraulic fluid port C is provided on first bushing 2, the thin axle portion of the first bushing 2
It is provided with to be connected to the third through flow hole 22 of oil back chamber 1a and the second through flow hole 21 on side wall.
The the first damping hole 3a and connection oil back chamber of connection control chamber 1b and the 4th hydraulic fluid port D are provided on second bushing, 3 side wall
The second damping hole 3b of 1a and the 4th hydraulic fluid port D.
Pilot solenoid valve 7 in 11 left end of axial passage of valve body 1 is set, is determined whether pilot solenoid valve 7 is by obtaining electric
Whether third hydraulic fluid port C is connected to second through flow hole 21.
Pilot solenoid valve 7 includes that guide valve blocks 710, guide's valve seat 75, pilot valve 76, second spring 77 and solenoid valve drive
Dynamic part；Guide's valve seat 75 is fixed on the right side of guide valve blocks 710, be provided on the side wall of guide's valve seat 75 always with third hydraulic fluid port
4th through flow hole 751 of C connections, the inner cavity of guide's valve seat 75 are connected to the second through flow hole 21 always, and pilot valve 76 is set to first
In guide valve seat 75 and sliding can be controlled, the 5th through flow hole being connected to always with the inner cavity of guide's valve seat 75 is provided in pilot valve 76
761, it is provided with to be connected to the 7th through flow hole of the 4th through flow hole 751 and the 5th through flow hole 761 on the side wall of pilot valve 76
762, second spring 77 is set in guide's valve seat 75 and acting on pilot valve 76 makes its holding move to left trend, and pilot valve 76 is left
Shifting state, the 7th through flow hole 762 and the 4th through flow hole 751 block, and pilot valve 76 moves to right state, the 7th through flow hole 762 and the
Four through flow holes 751 are connected to；Electromagnetic drive part is divided into the left end of guide valve blocks 72, to drive pilot valve 76 to move left and right.
The left end of pilot valve 76 is fixed with spring base 78, and the left end of the second spring 77 is held on spring base 78,
The right end of second spring 77 is supported on guide's valve seat 75.Spring base 78 is set in pilot valve 76, the pilot valve 76
Left end periphery be arranged with axis retainer ring 79, which forms gear with retainer ring 79 to the bottom surface of 78 endoporus of spring base.
Electromagnetic valve driving portions point include coil 71, flux sleeve 72, armature 73, push rod 74, and 72 inserting of flux sleeve is fixed first
The upper end of pilot valve body 710, the coil 71 are arranged and are relatively fixed in the periphery of flux sleeve 72, and the left end of coil 71 is equipped with end cap
711 sealings, armature 73 be set in flux sleeve 72 and can left and right sliding, push rod 74 be threaded through in flux sleeve 72 and can or so slide,
The left end of push rod 74 coordinates with armature 73, and the right end of push rod 74 coordinates with the pilot valve 76, and moving to right for push rod 74 can push
Pilot valve 76 moves to right, and coil 71 must be electric, and armature 73 is attracted to the right by flux sleeve 72 pushes push rod 74 to move to right, 71 dead electricity of coil,
Pilot valve 76 drives push rod 74 to move to left under the effect of second spring 77.Pushing away manually for sliding can be controlled by being equipped on end cap 711
Bar 712, hand push rod 712 are contacted with armature 73 so that 712 energy band moving armature 73 of hand push rod moves to right.
The operation principle and process of this shut-off valve is as follows：
In application, the 4th hydraulic fluid port D is connected with hydraulic pump outlet high pressure oil, third hydraulic fluid port C is connected with fuel tank.
When 71 no power of coil, under the active force of second spring 77, spring base 78 drives pilot valve by baffle ring 79
Core 76 is moved to the left the 7th through flow hole 762 and the 4th through flow hole 751 is blocked, and the fluid of oil back chamber 1a can not be via the 3rd C
Mouthful outflow, the fluid of the 4th hydraulic fluid port D enter oil back chamber 1a by the second damping hole 3b, while the fluid of the 4th hydraulic fluid port D passes through the
One through flow hole 3a enters control chamber 1b；Because the fluid of oil back chamber 1a is without flowing, the pressure of oil back chamber 1a and control chamber 1b
Equal, the pressure of oil back chamber 1a and the pressure of control chamber the 1b generated active force on spool 5 balance each other, and spool 5 is first
The active force of spring 4 moves to right, and closes the first hydraulic fluid port A, the first hydraulic fluid port A and the second hydraulic fluid port B and is in cut-off state.Because of the second hydraulic fluid port B
Pressure on spool 5 without active area, therefore the pressure of the second hydraulic fluid port B does not have an impact the unlatching of spool 5；And the first oil
Mouthful A acts on the thrust generated on the first active area D1 of spool 5 to the left, while entering counter balance pocket by the first through flow hole 51
5a acts on the thrust generated on the second active area D2 to the right, because of first active area D1=the second left and right area D2, institute
With the pressure of the first hydraulic fluid port A to the force balance of spool 5, spool 5 only by the active force of the first spring 4, no matter the first hydraulic fluid port
A, how the second hydraulic fluid port B pressure changes, and spool 5 can reliably be in cut-off state.
When coil 71 is powered, armature 73 is attracted to the right, pushes pilot valve 76 to overcome second spring 77 by push rod 74
Active force move right, the 7th through flow hole 762 is connected with the 4th through flow hole 751, the fluid of oil back chamber 1a is logical through third
Discharge orifice 22, the second through flow hole 21, the inner cavity of pilot valve 75, the 5th through flow hole 761, the 7th through flow hole 762, the 4th through flow hole
751 return to third hydraulic fluid port C, oil back chamber 1a pressure decline it is equal with tank pressure, main valve plug 5 is opened under the action of pressure difference
It opens, the first hydraulic fluid port A and the second hydraulic fluid port B conductings.It, will be manual when coil 71 burns out or fault occurs and need emergency operation
Push rod 712 pushes up to the right, then hand push rod 712 pushes armature 73, push rod 74 to open pilot valve 76, and then controls spool 5 and open
It opens.
Claims (6)
1. a kind of electromagnetic type hydraulic control two-way shut-off valve, it is characterised in that：Including
Valve body (1) with axially extending bore (11) is provided with the third hydraulic fluid port being connected to axially extending bore (11) on the side wall of valve body (1)
(C) and the 4th hydraulic fluid port (D)；
It is fixed on the valve seat (6) of axially extending bore (11) right end, is provided on the right side of valve seat (6) and is connected to axially extending bore (11)
First hydraulic fluid port (A) is provided with the second hydraulic fluid port (B) being connected to axially extending bore (11) on the side wall of valve seat (6)；
First bushing (2), the second bushing (3) and spool (5), the first bushing (2) and the second bushing (3) are fixed on axially extending bore
(11) in, spool (5) be set in the second bushing (3) and can left and right slide, the second bushing (3) inner cavity is separated into solely by spool (5)
The right end of vertical oil back chamber (1a) and control chamber (1b), spool (5) is pierced by the second bushing (3) and coordinates with the first hydraulic fluid port (A), valve
The left and right sliding of core (5) can open and close first hydraulic fluid port (A), spool (5) it is interior equipped with axially penetrate through and always with the first hydraulic fluid port (A)
The first through flow hole (51) of connection, the oil back chamber (1a) is interior to be equipped with the first spring (4), which acts on spool
(5) and spool (5) is made to keep moving to right blocking the first hydraulic fluid port (A) trend；
First bushing (2) is in ladder shaft-like, and the right part of the first bushing (2) is inserted into the inner cavity of the second bushing (3), the first bushing
(2) big axle portion periphery is equipped with sealing structure, the first bushing (2) between axially extending bore (11) and oil back chamber (1a) inner wall respectively
Thin axle portion stretch into the left ends of the first through flow hole (51), between the thin axle portion periphery and the first through flow hole (51) of the first bushing (2)
Equipped with sealing structure, to form counter balance pocket (5a) in the first through flow hole (51) of the thin axle portion right end of the first bushing (2), the
Oil pressure acts on first active area (D2) of spool (5) right end and is acted on equal to counter balance pocket (5a) interior oil pressure in one hydraulic fluid port (A)
The second left and right area (D1) on spool (5)；
The second through flow hole (21) to be connected to third hydraulic fluid port (C), the thin axis of the first bushing (2) are provided on first bushing (2)
It is provided with to be connected to the third through flow hole (22) of oil back chamber (1a) and the second through flow hole (21) on the side wall in portion；
It is provided with connection control chamber (1b) on second bushing (3) side wall and the first damping hole (3a) of the 4th hydraulic fluid port (D) and is connected to back
The second damping hole (3b) of oil pocket (1a) and the 4th hydraulic fluid port (D)；
Pilot solenoid valve (7) in axial passage (11) left end of valve body (1) is set, whether pilot solenoid valve (7) is by obtaining electric
Whether determining that third hydraulic fluid port (C) is connected to second through flow hole (21).
2. electromagnetic type hydraulic control two-way shut-off valve according to claim 1, it is characterised in that：Pilot solenoid valve (7) packet
Include guide valve blocks (710), guide's valve seat (75), pilot valve (76), second spring (77) and solenoid-driven part；Pilot valve
Seat (75) is fixed on the right side of guide valve blocks (710), is provided on the side wall of guide's valve seat (75) and is connected to always with third hydraulic fluid port (C)
The 4th through flow hole (751), the inner cavity of guide's valve seat (75) is connected to the second through flow hole (21) always, and pilot valve (76) is set to
In guide's valve seat (75) and can left and right slide, the be connected to always with the inner cavity of guide's valve seat (75) is provided in pilot valve (76)
Five through flow holes (761) are provided with to be connected to the 4th through flow hole (751) and the 5th through flow hole on the side wall of pilot valve (76)
(761) the 7th through flow hole (762), the second spring (77) are set in guide's valve seat (75) and act on pilot valve (76)
Its holding is set to move to left trend, pilot valve (76) moves to left state, and the 7th through flow hole (762) is hindered with the 4th through flow hole (751)
Disconnected, pilot valve (76) moves to right state, and the 7th through flow hole (762) is connected to the 4th through flow hole (751)；The electromagnetic drive
Part is set to the left end of guide valve blocks (72), to drive pilot valve (76) to move left and right.
3. electromagnetic type hydraulic control two-way shut-off valve according to claim 2, it is characterised in that：A left side for the pilot valve (76)
End is fixed with spring base (78), and the left end of the second spring (77) is held on spring base (78), the right side of second spring (77)
End is supported on guide's valve seat (75).
4. electromagnetic type hydraulic control two-way shut-off valve according to claim 3, it is characterised in that：The spring base (78) is set in
In pilot valve (76), the left end periphery of the pilot valve (76) is arranged with axis retainer ring (79), and the axis is right with retainer ring (79)
The bottom surface of spring base (78) endoporus forms gear.
5. electromagnetic type hydraulic control two-way shut-off valve according to claim 2, it is characterised in that：The Electromagnetic valve driving portions subpackage
Coil (71), flux sleeve (72), armature (73), push rod (74) are included, flux sleeve (72) inserting is fixed on guide valve blocks (710)
Upper end, the coil (71) is arranged and is relatively fixed in the periphery of flux sleeve (72), and the left end of coil (71) is equipped with end cap
(711) seal, the armature (73) be set in flux sleeve (72) and can left and right slide, the push rod (74) is threaded through flux sleeve
(72) in and can left and right sliding, the left end of push rod (74) coordinates with armature (73), the right end of push rod (74) and the pilot valve
(76) coordinate, moving to right for push rod (74) can push pilot valve (76) to move to right, and coil (71) must be electric, and armature (73) is by flux sleeve
(72) being attracted to the right pushes push rod (74) to move to right, coil (71) dead electricity, and pilot valve (76) acts on lower band in second spring (77)
Dynamic push rod (74) moves to left.
6. electromagnetic type hydraulic control two-way shut-off valve according to claim 2, it is characterised in that：It is worn on the end cap (711)
The hand push rod (712) of sliding can be controlled by having, and hand push rod (712) is contacted with armature (73) so that hand push rod (712) energy band
Moving armature (73) moves to right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810735838.3A CN108571487A (en) | 2018-07-06 | 2018-07-06 | A kind of electromagnetic type hydraulic control two-way shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810735838.3A CN108571487A (en) | 2018-07-06 | 2018-07-06 | A kind of electromagnetic type hydraulic control two-way shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108571487A true CN108571487A (en) | 2018-09-25 |
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ID=63573824
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810735838.3A Withdrawn CN108571487A (en) | 2018-07-06 | 2018-07-06 | A kind of electromagnetic type hydraulic control two-way shut-off valve |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109185253A (en) * | 2018-10-22 | 2019-01-11 | 陈少同 | A kind of electromagnetic relief valve |
| CN110158697A (en) * | 2019-06-14 | 2019-08-23 | 江苏徐工工程机械研究院有限公司 | Signal cut valve and hydraulic control system |
| CN112682531A (en) * | 2020-12-04 | 2021-04-20 | 河南航天液压气动技术有限公司 | Three-position four-way electromagnetic reversing valve |
| CN113623350A (en) * | 2021-08-12 | 2021-11-09 | 常州普宸电子有限公司 | Built-in adjustable electromagnetic valve |
| CN113819267A (en) * | 2021-11-17 | 2021-12-21 | 常州恒立气动科技有限公司 | Valve rod assembly, main valve structure and pressure relief type two-position five-way electromagnetic reversing valve |
-
2018
- 2018-07-06 CN CN201810735838.3A patent/CN108571487A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185253A (en) * | 2018-10-22 | 2019-01-11 | 陈少同 | A kind of electromagnetic relief valve |
| CN109185253B (en) * | 2018-10-22 | 2020-04-21 | 杭州诚臻工程机械有限公司 | Electromagnetic overflow valve |
| CN110158697A (en) * | 2019-06-14 | 2019-08-23 | 江苏徐工工程机械研究院有限公司 | Signal cut valve and hydraulic control system |
| CN110158697B (en) * | 2019-06-14 | 2024-04-30 | 江苏徐工工程机械研究院有限公司 | Signal cut-off valve and hydraulic control system |
| CN112682531A (en) * | 2020-12-04 | 2021-04-20 | 河南航天液压气动技术有限公司 | Three-position four-way electromagnetic reversing valve |
| CN113623350A (en) * | 2021-08-12 | 2021-11-09 | 常州普宸电子有限公司 | Built-in adjustable electromagnetic valve |
| CN113819267A (en) * | 2021-11-17 | 2021-12-21 | 常州恒立气动科技有限公司 | Valve rod assembly, main valve structure and pressure relief type two-position five-way electromagnetic reversing valve |
| CN113819267B (en) * | 2021-11-17 | 2022-02-08 | 常州恒立气动科技有限公司 | Valve rod assembly, main valve structure and pressure relief type two-position five-way electromagnetic reversing valve |
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Application publication date: 20180925 |
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