CN107842382A - Hydraulic control one-way valve - Google Patents
Hydraulic control one-way valve Download PDFInfo
- Publication number
- CN107842382A CN107842382A CN201711018480.4A CN201711018480A CN107842382A CN 107842382 A CN107842382 A CN 107842382A CN 201711018480 A CN201711018480 A CN 201711018480A CN 107842382 A CN107842382 A CN 107842382A
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- Prior art keywords
- valve
- hydraulic control
- big
- differential
- feed liquor
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 25
- 230000001276 controlling effect Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 143
- 238000007789 sealing Methods 0.000 claims description 38
- 230000000670 limiting effect Effects 0.000 claims description 20
- 230000033001 locomotion Effects 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 8
- 238000003780 insertion Methods 0.000 description 15
- 230000037431 insertion Effects 0.000 description 15
- 239000012530 fluid Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of hydraulic control one-way valve, including valve body, swivel nut, feed liquor set, valve seat, valve pocket, the big valve core being arranged inside valve pocket, the small valve core being arranged inside big valve core, movably it is arranged inside the valve pocket and for the differential valve element for controlling the big valve core to move and is arranged inside valve pocket and for applying the pressure regulating device of elastic acting force to differential valve element.The hydraulic control one-way valve of the present invention, by setting differential valve element inside valve pocket, the automatically unloading of hydraulic control one-way valve can be realized, and by setting the operating pressure of pressure regulating device hydraulic control one-way valve to adjust, hydraulic control one-way valve is can adapt to the job requirement of different pressures, improve the versatility of hydraulic control one-way valve；Pressure regulating device is arranged on to the inside of valve pocket, improves the integrally-built compactedness of hydraulic control one-way valve, easy disassembly.
Description
Technical field
The present invention relates to the Hydraulic Elements in coal mine hydraulic supporting hydraulic circuit, and specifically, the present invention relates to a kind of liquid
Control check valve.
Background technology
At present, hydraulic control one-way valve can only be realized to associated oil cylinder or column used in coal mine fully-mechanized mining hydraulic support
The single-chamber feed liquor locking of jack and time liquid release.When pressure is increased beyond the operating pressure setting value of hydraulic control one-way valve, only
External overflow valve (i.e. safety valve) release can be relied on, the liquid of outflow is discharged to outside hydraulic system, both pollutes underground environment, make again
Into waste.And the operating pressure of existing hydraulic control one-way valve is unadjustable, it is impossible to the job requirement of different pressures is adapted to, it is general
Property is poor.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art.Therefore, the present invention provides a kind of liquid
Control check valve, it is therefore an objective to realize automatically unloading.
To achieve these goals, the technical scheme taken of the present invention is：Hydraulic control one-way valve, including valve body, swivel nut, feed liquor
Set, valve seat, valve pocket, the big valve core being arranged inside valve pocket, the small valve core being arranged inside big valve core, movably it is arranged at institute
State inside valve pocket and for controlling the differential valve element that the big valve core moves and being arranged inside valve pocket and for differential
Valve element applies the pressure regulating device of elastic acting force.
The valve pocket have allow liquid by and flow liquid into inside valve pocket with promote that the differential valve element moves the
One liquid pass hole, differential valve element drive the big valve core to be directed away from the direction of valve seat and moved while movement.
The differential valve element, which has, allows the second liquid pass hole that liquid connects by and with first liquid pass hole.
The big valve core is sheathed on the differential valve element, and link gear is provided between big valve core and differential valve element, differential
Valve element and small valve core are provided with spring, and link gear is arranged to enable differential valve element to drive big valve core to be directed away from institute in release
State the direction movement of valve seat.
The big valve core has the mounting hole for allowing the link gear to be embedded in, and the differential valve element, which has, makes link gear embedding
The chute entered, link gear include the sliding part in insertion mounting hole and chute and are arranged in mounting hole and play limit to sliding part
The locating part of position effect, sliding part are spherical, and for locating part with big valve core to be threadedly coupled, mounting hole is internal thread hole.
The swivel nut is connected by screw and feed liquor set, and feed liquor set is with the internal thread hole for allowing screw to insert, swivel nut
With the lock groove for allowing screw to insert, for feed liquor set with the valve pocket to be threadedly coupled, swivel nut is to be threadedly coupled with the valve body.
The lock groove is to be set on the periphery of the swivel nut along the annular groove entirely circumferentially extended, the screw
Multiple and multiple screws are to be uniformly distributed circumferentially.
The differential valve element includes feed liquor portion and the support sector being connected, and the big valve core is sheathed in feed liquor portion and feed liquor
Portion is used to provide guide effect to big valve core, and the chute is along the ring entirely circumferentially extended on the periphery for be arranged at feed liquor portion
Connected in star, the diameter of the support sector be more than on the sealing surface of the big valve core with the diameter at valve seat contact site, support
The diameter in portion is more than the diameter of the feed liquor portion.
The pressure regulating device includes movably being arranged at the spring base contacted inside the valve pocket and with differential valve element, set
It is placed in inside valve pocket and is the voltage regulation screw being threadedly coupled and the pressure regulation being arranged between voltage regulation screw and spring base with valve pocket
Spring structure, valve pocket, which has, allows the avoid holes that spring base passes through.
The spring base is made up of limiting section, first boss and second boss, and first boss and second boss exist respectively
The side of limiting section is fixedly connected with limiting section and the overall diameter of limiting section is more than the overall diameter of first boss and second boss, the
Two boss are inserted in the pressure spring, and first boss is used to contact with the differential valve element.
The present invention hydraulic control one-way valve, by setting differential valve element inside valve pocket, it is possible to achieve hydraulic control one-way valve from
Dynamic release, and by setting the operating pressure of pressure regulating device hydraulic control one-way valve to adjust, hydraulic control one-way valve is fitted
The job requirement of different pressures is answered, improves the versatility of hydraulic control one-way valve；Pressure regulating device is arranged on to the inside of valve pocket, improved
The integrally-built compactedness of hydraulic control one-way valve, easy disassembly.
Brief description of the drawings
This specification includes the following drawings, and shown content is respectively：
Fig. 1 is the sectional view of hydraulic control one-way valve of the present invention；
Fig. 2 is the sectional view of core assembly；
Fig. 3 is the sectional view of valve body；
Fig. 4 is the sectional view of feed liquor set；
Fig. 5 is the sectional view of valve rod；
Fig. 6 is the sectional view of valve pocket；
Fig. 7 is the sectional view of swivel nut；
Fig. 8 is the sectional view of big valve core；
Fig. 9 is the sectional view of small valve core；
Figure 10 is the sectional view of differential valve element；
Figure 11 is the sectional view of spring base；
Figure 12 is the use state diagram of hydraulic control one-way valve of the present invention；
In figure mark for：
1st, screw；
2nd, valve body；201st, valve pocket；202nd, the first opening；203rd, the second opening；204th, the 3rd opening；205th, the 4th opening；
206th, the 5th opening；207th, the 6th opening；208th, the 7th opening；209th, the 8th opening；
3rd, feed liquor set；301st, the 3rd liquid pass hole；302nd, internal thread hole；303rd, the first accommodating cavity；304th, the second accommodating cavity；
305th, the 3rd accommodating cavity；306th, the 4th accommodating cavity；307th, the 5th accommodating cavity；
4th, valve pocket；401st, the first liquid pass hole；402nd, the 4th liquid pass hole；403rd, directed cavity；404th, pressure-regulating portion；405th, avoid
Hole；406th, pressure regulating cavity；407th, connecting portion；408th, the first guide part；409th, the second guide part；410th, flange；
5th, swivel nut；501st, the 5th liquid pass hole；502nd, the first working hole；503rd, the 6th accommodating cavity；504th, lock groove；
6th, push rod；601st, push rod body；602nd, piston；
7th, differential valve element；701st, the second liquid pass hole；702nd, chute；703rd, support sector；704th, feed liquor portion；705th, admission chamber；
8th, spring base；801st, limiting section；802nd, first boss；803rd, second boss；
9th, big valve core；901st, mounting hole；902nd, hollow cavity；
10th, small valve core；11st, valve seat；12nd, the first spring；13rd, second spring；
14th, pressure spring；15th, voltage regulation screw；16th, sliding part；17th, locating part；18th, air storing cavity.
Embodiment
Below against accompanying drawing, by the description to embodiment, embodiment of the invention is made further details of
Explanation, it is therefore an objective to help those skilled in the art to have more complete, accurate and deep reason to design of the invention, technical scheme
Solution, and contribute to its implementation.
As shown in Figures 1 to 12, the invention provides a kind of hydraulic control one-way valve, including valve body 2, push rod, swivel nut 5, feed liquor
Set 3, valve seat 11, valve pocket 4, the first spring 12, second spring 13, the big valve core 9 being arranged inside valve pocket 4, it is arranged at big valve core 9
Internal small valve core 10, the moveable inside for being arranged at valve pocket 4 and the differential valve element 7 for controlling big valve core 9 to move
With the inside for being arranged at valve pocket 4 and for the pressure regulating device to differential valve element 7 application elastic acting force.
Specifically, as depicted in figs. 1 and 2, valve pocket 4, big valve core 9, small valve core 10, feed liquor set 3, swivel nut 5, valve seat 11,
Differential valve element 7, the first spring 12, second spring 13 and pressure regulating device etc. form the core assembly of plug-in, core assembly one
Body structure.For feed liquor set 3 between swivel nut 5 and valve pocket 4, valve seat 11 is arranged at the inside of feed liquor set 3 and valve seat 11 and big valve core
9 are engaged realization sealing, and big valve core 9 has the sealing surface for being used for being in contact with valve seat 11 and the sealing surface is circular conical surface.Swivel nut 5
3 it is sheathed on feed liquor set on push rod, big valve core 9 and differential valve element 7 are the inside for being movably arranged at valve pocket 4, small valve core 10
To be movably arranged at the inside of big valve core 9, push rod is used to apply big valve core 9 and small valve core 10 pressure vertically, top
Bar can promote the inside of big valve core 9 towards valve pocket 4 mobile and promote small valve core 10 in the inside of big valve core 9 towards close to differential
The direction of valve element 7 moves, and big valve core 9 is separated with valve seat 11, realizes the unlatching of check valve.Swivel nut 5 and valve body 2 are screw thread
Connection, feed liquor set 3 is clipped between swivel nut 5 and valve pocket 4 and feed liquor set 3 is fixedly connected with swivel nut 5 and valve pocket 4, and valve pocket 4 is used for
Position-limiting action is played on axially to big valve core 9 and differential valve element 7, swivel nut 5 is used to play position-limiting action, swivel nut 5 to push rod in the axial direction
With valve body 2 and for being connected with the upright post jack of outside.Upright post jack is a kind of single-piston-rod hydraulic cylinder, upright post jack
It can extend and shrink.When upright post jack is extended, to carry out setting prop action.When upright post jack is shunk, to enter
Row drop post action.
As shown in Figure 1 to Figure 3, the inside of valve body 2 has the valve pocket 201 for accommodating core assembly, and valve pocket 201 is in valve body 2
One end end face extend the circular cavity to be formed initially towards the inside of valve body 2, core assembly is integrally inserted in the valve pocket of valve body 2
And swivel nut 5 is to be threadedly coupled with valve body 2, realizes fixation of the core assembly on valve body 2.Valve pocket is on one end end face of valve body 2
Form an opening and set the opening as the first opening 202, core assembly is inserted in valve pocket at the first opening 202, valve element group
To be threadedly coupled in part insertion valve pocket and with valve body 2, core assembly is arranged to be threadedly coupled with valve body 2, easy disassembly and maintenance.
Valve body 2 is provided with the second opening 203, and the second opening 203 is in the axial direction of valve pocket and the second opening 203 connects with valve pocket, the
One opening 202 and the second opening 203 are to be oppositely arranged.In the opening 203 of the insertion of valve pocket 4 second, this simultaneously second is open by valve pocket 4
203 closings.
As shown in figures 1 and 3, valve body 2 is rectangular block shape structure, and valve body 2 has first end face, second end face, the 3rd end
Face, the 4th end face, the 5th end face and the 6th end face, first end face and second end face are the both ends end on the length direction of valve body 2
Face, first end face and second end face are parallel and perpendicular with the length direction of valve body 2, and the first opening 202 is arranged at first end
On face, the second opening 203 is arranged in second end face.3rd end face and the 4th end face are the both ends on the width of valve body 2
End face, the 3rd end face and the 4th end face are parallel and perpendicular with the width of valve body 2, and the 5th end face and the 6th end face are valve
Both ends end face on the thickness direction of body 2, the 5th end face and the 6th end face are parallel and perpendicular with the thickness direction of valve body 2.
Valve body 2 is provided with one first 204, one the 4th openings 205, one of opening of opening 203, one the 3rd of opening 202, one second
The individual opening 208 of opening 207, one the 7th of 5th opening 206, one the 6th and one the 8th opening 209, the second opening 203 are made
For the second working hole A, for the 3rd opening 204 as the 3rd working hole PA for allowing liquid to pass through, the 4th opening 205, which is used as, allows liquid to lead to
The 4th working hole PA ' crossed, the 5th opening 206 are used as the 5th working hole A1 for allowing liquid to pass through, and the conducts of the 6th opening 207 allow liquid
The 6th working hole A2 that body passes through, the 7th opening 208 is as the 7th working hole PB for allowing liquid to pass through, the 8th 209 conducts of opening
Allow the 8th working hole PB ' that liquid passes through, swivel nut 5 allows the first working hole B that liquid passes through provided with one, and swivel nut 5 is
It is connected at one working hole B by oil pipe with the upright post jack of outside.Valve body 2 passes through oil pipe and outside at the 5th opening 206
Upright post jack connection, into the liquid in valve pocket by the 5th opening 206 flow into upright post jacks in, in upright post jack
Liquid pass through the 5th opening 206 flow into valve pockets in.
As shown in Fig. 1, Fig. 3 and Fig. 9, the 3rd 204 (i.e. the 3rd working hole PA) of opening and the 7th 208 (i.e. the 7th works of opening
Make mouth PB) it is used to be connected with the three position four-way directional control valve of outside, 206 (i.e. the 5th working holes of opening of the first working hole B and the 5th
A1) it is used to be connected with the upright post jack of outside.4th 205 (i.e. the 4th working hole PA ') of opening and the 8th are open 209 (i.e. the
Eight working hole PB ') it can be used for the hydraulic control one-way valve of adjoining frame, the 4th opening 205 is opened with the 3rd of the hydraulic control one-way valve of adjacent frame
Mouth 204 is connected, and the 8th opening 209 is connected with the 7th opening 208 of the hydraulic control one-way valve of adjacent frame, i.e., when two hydraulic control one-way valve phases
Connection is in use, the 4th opening 205 of one of hydraulic control one-way valve connects with the 3rd opening 204 of another hydraulic control one-way valve
Connect, the 8th opening 209 of one of hydraulic control one-way valve is connected with the 7th opening 208 of another hydraulic control one-way valve.6th opens
207 (i.e. the 6th working hole A2) of mouth can be used for being connected what is required to meet other with the pressure gauge of outside or pressure sensor
Need, the 6th opening 207 can also use chock to be blocked when need not using, and the 6th opening 207 can be closed, and seal
Closing rear fluid can not pass through.
As shown in figures 1 and 3, the opening 206 of the 3rd opening the 204, the 5th and the 7th opening 208 are from the 3rd end of valve body 2
The axis phase of the circular hole that face extends initially towards the inside of valve body 2, the opening 206 of the 3rd opening the 204, the 5th and the 7th opening 208
The axis perpendicular of valve pocket 201 parallel and with valve body 2, the 3rd opening the 204, the 5th opening 206 and the 7th opening 208 and with
Valve pocket 201 is connected, and the opening 206 of the 3rd opening the 204, the 5th and the 7th opening 208 are in parallel with the length direction of valve body 2
Same straight line on and the 3rd opening 204 and positioned at the 5th opening 206 and the 7th opening 208 between.4th opening the 205, the 6th
The opening 209 of opening 207 and the 8th is the circular hole extended from the 4th end face of valve body 2 initially towards the inside of valve body 2, and the 4th is open
205th, the axis of the 6th opening 207 and the 8th opening 209 is parallel and the axis perpendicular of valve pocket 201 with valve body 2, and the 4th opens
The opening 209 of the opening of mouth the 205, the 6th 207 and the 8th is connected with valve pocket 201, and the opening 207 and the 8th of the 4th opening the 205, the 6th is opened
Mouthfuls 209 on the same straight line parallel with the width of valve body 2 and the 4th opening 205 is positioned at the 8th opening 209 and the
Between six openings 207, the 3rd opening 204 and the 4th opening 205 are in the same straight line parallel with the width of valve body 2
On, the 5th opening 206 and the 6th opening 207 are on the same straight line parallel with the width of valve body 2, the 7th opening
208 and the 8th are open 209 on the same straight line parallel with the width of valve body 2.Second opening 203 is from valve body 2
The circular hole that extends initially towards the inside of valve body 2 of second end face, the first opening 202 is arranged in the first end face of valve body 2, the
One opening 202, second opening 203 and valve pocket 201 for be coaxially disposed and valve pocket 201 positioned at first opening 202 and second opening 203
Between.
As shown in Figure 1 to Figure 3, after in core assembly insertion valve pocket 201, in the opening 203 of the insertion of valve pocket 4 second and by second
Opening 203 closing, second opening 203 without using.3rd opening 204 and the 4th opening 205 positioned at feed liquor set 3 radially and the
Three openings 204 and the 4th opening 205 are respectively positioned at the side of feed liquor set 3 and the 3rd opening 204 and the 4th opening 205 and feed liquor set
3 inner chamber connection, the 5th opening 206 and the 6th opening 207 positioned at valve pocket 4 radially and the 5th opening 206 and the 6th opening
207 respectively be located at valve pocket 4 side, the 7th opening 208 and the 8th opening 209 positioned at swivel nut 5 radially and the 7th opening 208
Connected respectively positioned at the side of swivel nut 5 and the 7th opening 208 and the 8th opening 209 with the inner chamber of swivel nut 5 with the 8th opening 209.
As depicted in figs. 1 and 2, valve seat 11 is arranged at the inside of feed liquor set 3, and valve seat 11 is in the axial direction by feed liquor set 3 and valve
Set 4 is fixedly clamped.Valve seat 11 is cirque structure and valve seat 11 and feed liquor set 3 and valve pocket 4 are to be coaxially disposed, the inside of valve seat 11
There is the centre bore for accommodating big valve core 9, the diameter of the centre bore of valve seat 11 is less than the overall diameter of big valve core 9 at center.Big valve core 9
It is made with valve seat 11 of metal material, big valve core 9 is identical with the material of valve seat 11, and the hardness of valve seat 11 is less than big valve core 9
Hardness, big valve core 9 and valve seat 11 be tightly connected to be hard, enhances sealing property.Big valve core 9 and valve seat 11 use metal material
Matter is made, and to use vacuum hardening technology, is refined again after quenching, and hardness is high, and relative to the sealing of softwood matter, hard sealing is not
Only good seal performance, moreover it is possible to resistance to super-pressure, the service life length of hydraulic control one-way valve.The sealed end of big valve core 9 is frustum structure, greatly
The sealing surface of valve element 9 is circular conical surface, and the sealed end of big valve core 9 can stretch into the centre bore of valve seat 11 and the reality that is in contact with valve seat 11
Now seal, push rod only starts to contact with big valve core 9 at valve seat 11, and the structure of big valve core 9 is simpler, hydraulic control one-way valve entirety
More compact structure.In addition, small valve core 10 is also made of metal material, the material phase of valve seat 11, big valve core 9 and small valve core 10
Together.
As shown in Figure 1, Figure 2 with shown in Fig. 5, push rod is the inside for being movably arranged at swivel nut 5 and feed liquor set 3, and push rod includes
The piston 602 and push rod body 601 being fixedly and coaxially connected, piston 602 and push rod body 601 are cylinder, the diameter of piston 602
More than the diameter of push rod body 601, push rod body 601 is used to contact with big valve core 9 and small valve core 10, with when check valve is opened
Big valve core 9 and small valve core 10 is promoted to be moved linearly towards the direction close to differential valve element 7.Piston 602 is located at the interior of swivel nut 5
Portion, swivel nut 5 and feed liquor set 3 are engaged, for playing position-limiting action to piston 602 in the axial direction.Push rod body 601 insert into
The inside of liquid set 3 and swivel nut 5, the diameter of the centre bore of valve seat 11 are more than the diameter of push rod body 601 so that push rod body 601
It is inserted into the centre bore of valve seat 11, to be contacted with big valve core 9 and small valve core 10.Second spring 13 is used to apply push rod and made
Its active force moved axially towards the direction away from big valve core 9 and small valve core 10, second spring 13 are sheathed on push rod
On body 601 and second spring 13 is clipped between piston 602 and feed liquor set 3, and one end of second spring 13 is against the interior of feed liquor set 3
On wall, the other end is against on piston 602, and second spring 13 is cylindrically coiled spring.
As shown in Figure 1, Figure 2 and Figure 4, feed liquor set 3 is both ends open and the cylinder of inner hollow, and one end of swivel nut 5 is inserted
Enter in feed liquor set 3 and be fixedly connected with feed liquor set 3, in the other end insertion valve pocket 4 of feed liquor set 3 and feed liquor set 3 is with valve pocket 4
Threaded connection, the end of feed liquor set 3 are provided with external screw thread, and the end of valve pocket 4 is provided with internal thread.Feed liquor set 3, which is provided with, allows liquid to lead to
The 3rd liquid pass hole 301 crossed, the 3rd liquid pass hole 301 is to be obliquely installed on feed liquor set 3, and the axis of the 3rd liquid pass hole 301 is with entering
There is angle between the axis of liquid set 3 and the angle is acute angle.3rd liquid pass hole 301 is to run through to set in the side wall of feed liquor set 3
The circular hole put, the 3rd liquid pass hole 301 are evenly distributed multiple, the 3rd liquid pass hole 301 and feed liquor set 3 in the side wall of feed liquor set 3
Hollow cavity connection and all 3rd liquid pass holes 301 be distributed in around hollow cavity, the 3rd liquid pass hole 301 and with valve body 2
On the 3rd opening 204 205 be connected with the 4th opening.3rd liquid pass hole 301 is towards outside in the side wall of feed liquor set 3
The position of valve seat 11 tilts extension, and the axis of the 3rd liquid pass hole 301 intersects with the axis of feed liquor set 3 and angle between the two
Less than 90 degree.3rd liquid pass hole 301 is designed using inclined hole so that liquid is by flowing more smooth, resistance during three liquid pass holes 301
Loss is smaller, and is easier to process.
As shown in Figure 1, Figure 2 and Figure 4, the inside of feed liquor set 3, which is provided with, accommodates the first accommodating cavity 303 of swivel nut 5, accommodates second
Second accommodating cavity 304 of spring 13 and push rod body 601, the 3rd accommodating cavity 305 and the 4th accommodating cavity for accommodating push rod body 601
306 and accommodate valve seat 11 the 5th accommodating cavity 307, the first accommodating cavity 303, the second accommodating cavity 304, the 3rd accommodating cavity 305,
4th accommodating cavity 306 and the 5th accommodating cavity 307 are to be sequentially arranged along the axial direction of feed liquor set 3, and the first accommodating cavity 303, second is accommodating
Chamber 304, the 3rd accommodating cavity 305, the 4th accommodating cavity 306 and the 5th accommodating cavity 307 are circular cavity and the first accommodating cavity 303, the
Two accommodating cavities 304, the 3rd accommodating cavity 305, the 4th accommodating cavity 306 and the 5th accommodating cavity 307 is are coaxially disposed, the first accommodating cavity
303 diameter is more than the diameter of the second accommodating cavity 304, and the diameter of the second accommodating cavity 304 is more than the diameter of the 3rd accommodating cavity 305,
The diameter of 4th accommodating cavity 306 is more than the diameter of the 3rd accommodating cavity 305, and the diameter of the 5th accommodating cavity 307 is more than the 4th accommodating cavity
306 diameter, the diameter of the 3rd accommodating cavity 305 is equal with the diameter of push rod body 601, and swivel nut 5 inserts the first accommodating cavity
It is fixedly connected in 303 and with feed liquor set 3, the diameter of the second accommodating cavity 304 is less than the diameter of piston 602 so that piston 602 is only capable of
Moved in the inside of swivel nut 5.First accommodating cavity 303, the second accommodating cavity 304, the 3rd accommodating cavity 305, the 4th accommodating cavity
306 and the 5th accommodating cavity 307 formed feed liquor set 3 hollow cavity, the first accommodating cavity 303 and the 5th accommodating cavity 307 are entering respectively
Opening is formed on the both ends end face of liquid set 3, the overall diameter of valve seat 11 is equal with the diameter of the 5th accommodating cavity 307, valve seat 11
It is placed in the 5th accommodating cavity 307 and valve seat 11 is engaged with feed liquor set 3 by valve pocket 4 and is fixedly clamped.3rd liquid pass hole 301 and feed liquor
4th accommodating cavity 306 of set 3 is connected, and all 3rd liquid pass holes 301 are distributed in around the 4th accommodating cavity 306, and the 4th holds
Put chamber 306 and connected with the centre bore of valve seat 11.
As shown in Figure 1, Figure 2 and Figure 7, swivel nut 5 is both ends open and the cylinder of inner hollow, and swivel nut 5 inserts valve body 2
In and with valve body 2 to be threadedly coupled, swivel nut 5 is provided with external screw thread, and the inner headed face of the valve pocket of valve body 2 is provided with internal thread.Swivel nut 5
For being connected with the upright post jack of outside, flowed into upright post jack, stood by swivel nut 5 into the fluid in hydraulic control one-way valve
Fluid in post jack can be also flowed into hydraulic control one-way valve by swivel nut 5.One end of swivel nut 5 is located in the valve pocket of valve body 2, spiral shell
The other end of set 5 extend out to the outside of valve body 2, is easy to be connected with upright post jack by oil pipe.The inside of swivel nut 5 is provided with first
Working hole 502 (i.e. the first working hole B) and the 6th accommodating cavity 503 for accommodating valve rod, the first working hole 502 is stretching from swivel nut 5
The end face for going out end starts the circular hole extended along the inside for being axially facing swivel nut 5 of swivel nut 5, and one end of swivel nut 5 for external part and is somebody's turn to do
External part is located at the outside of valve body 2, and the other end of swivel nut 5 is inserted in the valve pocket of valve body 2 for insertion end and the insertion end.6th holds
Put that the diameter of chamber 503 is identical with the overall diameter size of piston 602, the diameter of the first working hole 502 is less than the 6th accommodating cavity 503
Diameter, the first working hole 502 connect with the 6th accommodating cavity 503.6th accommodating cavity 503 is the circle for the inside for being arranged at swivel nut 5
Cavity, the 6th accommodating cavity 503 are the inside for being axially facing feed liquor set 3 since the end face of the insertion end of swivel nut 5 along feed liquor set 3
Extend the cavity formed, the 6th accommodating cavity 503 and the first working hole 502 are coaxial.Allow liquid to pass through the 5th is additionally provided with swivel nut 5
Liquid pass hole 501, the 5th liquid pass hole 501 are to be obliquely installed on swivel nut 5, the axis of the 5th liquid pass hole 501 and the axis phase of swivel nut 5
Vertically.5th liquid pass hole 501 is, through the circular hole set, the 5th liquid pass hole 501 sets multiple and multiple in the side wall of swivel nut 5
For 5th liquid pass hole 501 to be uniformly distributed circumferentially in the side wall of swivel nut 5, multiple 5th liquid pass holes 501 are distributed in the first work
Mouthfuls 502 surrounding and the first working hole 502 is connected with the 5th liquid pass hole 501, the 5th liquid pass hole 501 and with the on valve body 2
Seven openings 208 are connected with the 8th opening 209.
As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 7, swivel nut 5 is connected by screw 1 with feed liquor set 3, and swivel nut 5 covers 3 relative to feed liquor
It can be rotated around its axis, feed liquor set 3 has the internal thread hole 302 for allowing screw 1 to insert, and swivel nut 5, which has, allows screw 1 to insert
Lock groove 504, for feed liquor set 3 with valve pocket 4 to be threadedly coupled, swivel nut 5 is to be threadedly coupled with valve body 2.Compared to prior art
Feed liquor set 3 in hydraulic control one-way valve is connected through a screw thread with swivel nut 5, and feed liquor set 3 and spiral shell in the hydraulic control one-way valve of the present invention
Set 5 is linked into an integrated entity structure by screw 1, when avoiding the core assembly from dismounting because being threadedly coupled between feed liquor set 3 and swivel nut 5 and
Loosen, cause feed liquor set 3 to be split away off from swivel nut 5, linked into an integrated entity by the feed liquor of screw 1 set 3 with swivel nut 5,
Be not in the problem of coming off, when improving the reliability connected between feed liquor set 3 and swivel nut 5, and improving core assembly dismounting
Operating efficiency.
As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 7, as preferable, lock groove 504 is along whole on the periphery of swivel nut 5
The annular groove of circumferentially extending, screw 1 set multiple and multiple screws 1 to be uniformly distributed circumferentially, the quantity of internal thread hole 302
Identical with the quantity of screw 1, each screw 1 is respectively embedded into an internal thread hole 302, the axis and feed liquor of internal thread hole 302
The axis perpendicular of set 3, all internal thread holes 302 are distributed in the surrounding of the first accommodating cavity 303, internal thread hole 302 and to enter
The through hole of setting is extended radially through in the side wall of liquid set 3.Lock groove 504 is arranged at the first accommodating cavity of insertion 303 of swivel nut 5
On the periphery of end, all screws 1 are distributed in the surrounding of lock groove 504, and a part for screw 1 is inserted in internal thread hole 302,
In another part insertion lock groove 504 of screw 1, so as to which screw 1 can play position-limiting action to swivel nut 5 in the axial direction so that
Feed liquor set 3 links into an integrated entity with swivel nut 5, while screw 1 can also circumferentially enter line slip in lock groove 504 so that swivel nut 5
It can cover and 3 be rotated relative to feed liquor, when dismantling when in the valve pocket that core assembly is arranged on valve body 2 or from valve pocket, energy
Enough rotate swivel nut 5 and make feed liquor set 3 remain to keep connection status, feed liquor set 3 and swivel nut 5 with swivel nut 5 in the rotary course of swivel nut 5
Between will not separate.And due to being provided with the O-ring seal of quality of rubber materials, sealing ring folder between feed liquor set 3 and valve body 2
Between feed liquor set 3 and the internal face of valve body 2, frictional force be present between sealing ring and feed liquor set 3 and valve body 2, so in swivel nut 5
When being rotated relative to valve body 2, the presence of sealing ring cause it is relatively unrotatable between feed liquor set 3 and valve pocket 4 and valve body 2, and then
Also can avoids relatively rotating between feed liquor set 3 and valve pocket 4, avoids feed liquor set 3 and valve pocket 4 from separating.
As shown in Figure 1, Figure 2 with shown in Fig. 6, valve pocket 4 is provided with and allows the 4th liquid pass hole 402 that liquid passes through, the 4th liquid pass hole 402
There is angle to be obliquely installed on valve pocket 4, between the axis of the 4th liquid pass hole 402 and the axis of valve pocket 4 and the angle is sharp
Angle.4th liquid pass hole 402 is, through the circular hole set, the 4th liquid pass hole 402 sets multiple and multiple the in the side wall of valve pocket 4
For four liquid pass holes 402 to be uniformly distributed circumferentially in the side wall of valve pocket 4, multiple 4th liquid pass holes 402 are distributed in big valve core 9
Surrounding and the 4th liquid pass hole 402 can connect with the hollow cavity of valve pocket 4, the 4th liquid pass hole 402 simultaneously with the 5th opening on valve body 2
206 are connected with the 6th opening 207.4th liquid pass hole 402 tilts extension in the interior of valve pocket 4, the 4th liquid pass hole 402
Axis intersects with the axis of valve pocket 4 and angle between the two is less than 90 degree.4th liquid pass hole 402 is designed using inclined hole so that
Liquid is more smooth by being flowed during four liquid pass holes 402, and drag losses is smaller, and is easier to process.On same axial direction
The axis of the 3rd liquid pass hole 301 and the axis of the 4th liquid pass hole 402 between there is angle and the angle to be also acute angle, in same
The 402 V-shaped arrangement of axis and the 4th liquid pass hole of the 3rd liquid pass hole 301 on one axial direction.
As shown in Figure 1, Figure 2 with shown in Fig. 6, valve pocket 4 is both ends open and the cylinder of inner hollow, and valve pocket 4 includes and feed liquor
The connecting portions 407 of the connection of set 3, for big valve core 9 is play the guiding role the first guide part 408, lead for being risen to differential valve element 7
The second guide part 409 to effect and the pressure-regulating portion 404 for accommodating pressure regulating device, connecting portion 407, the first guide part 408,
Two guide parts 409 and pressure-regulating portion 404 is set gradually and are fixedly connected sequentially along the axial direction of valve pocket 4, i.e., valve pocket 4 is by connecting portion
407th, the first guide part 408, the second guide part 409 and pressure-regulating portion 404 are formed by connecting, connecting portion 407, the first guide part 408,
Two guide parts 409 and pressure-regulating portion 404 are cirque structure, connecting portion 407, the first guide part 408, the and of the second guide part 409
For pressure-regulating portion 404 to be coaxially disposed, the overall diameter of connecting portion 407 is more than the outer straight of the first guide part 408 and the second guide part 409
Footpath, the interior diameter of connecting portion 407 are more than the interior diameter of the first guide part 408.In the centre bore of the insertion connecting portion 407 of feed liquor set 3
And with connecting portion 407 to be threadedly coupled, the internal face of connecting portion 407 is provided with internal thread, and the interior diameter of connecting portion 407 is
The diameter of centre bore.Big valve core 9 is inserted in the centre bore of the first guide part 408, the overall diameter of big valve core 9 and the first guide part
The diameter of 408 centre bore is equal, and the interior diameter of the first guide part 408 is the diameter of centre bore.First guide part 408
Overall diameter be less than the overall diameter of the second guide part 409, the interior diameter of the first guide part 408 and the second guide part 409 it is interior straight
Footpath size is identical.Differential valve element 7 is inserted in the centre bore of the second guide part 409, the overall diameter and the second guide part of differential valve element 7
The diameter of 409 centre bore is equal.The centre bore of the diameter of the centre bore of second guide part 409 and the first guide part 408
Diameter it is identical, the centre bore of the first guide part 408 connects with the centre bore of the second guide part 409, the first guide part 408
Centre bore and the centre bore of the second guide part 409 form the directed cavity 403 for accommodating big valve core 9 and differential valve element 7, directed cavity
403 be the circular cavity at valve pocket inside center, and the length of directed cavity 403 is more than the length of big valve core 9 and differential valve element 7
Degree.
As shown in Figure 1, Figure 2, shown in Fig. 6 and Figure 10, valve pocket 4 have allow liquid by and flow liquid into inside valve pocket 4 to push away
The first liquid pass hole 401 that moment movable valve plug 7 moves, big valve core 9 is driven to be directed away from valve seat 11 while differential valve element 7 moves
Direction movement.First liquid pass hole 401 is that leading to for setting is extended radially through on the periphery of the first guide part 408 of valve pocket 4
Hole and the first liquid pass hole 401 are circular hole, the axis of the first liquid pass hole 401 and the axis perpendicular of valve pocket 4, the first liquid pass hole 401
Connected with directed cavity 403, the first liquid pass hole 401 is simultaneously connected with the 5th opening 206 on valve body 2 and the 6th opening 207.When
At five openings 206 during pressure increase, namely at the 5th working hole A1 during pressure increase, the liquid outside valve pocket 4 crosses liquid through first
Hole 401 flows into the inside of valve pocket 4, namely liquid inside upright post jack flows through the 5th working hole A1 and the first liquid pass hole 401
Move to differential valve element 7, liquid applies pressure to differential valve element 7, and the direction for promoting differential valve element 7 to be directed away from valve seat 11 is entered
Row movement, drive big valve core 9 to be also directed away from the direction movement of valve seat 11 while differential valve element 7 moves, make big valve core 9 and valve
Seat 11 separates, and realizes the automatic opening of hydraulic control one-way valve so that the 3rd liquid pass hole 301 connects with the 4th liquid pass hole 402, hydraulic control
The relief passage of check valve is opened, and the liquid in the cavity of resorption of upright post jack is successively through the 5th working hole A1, the 4th liquid pass hole 402
Flowed to the 3rd liquid pass hole 301 in the 3rd working hole PA, realize automatically unloading.
As shown in Figure 1, Figure 2, shown in Fig. 6 and Figure 10, differential valve element 7, which has, allows liquid to be connected by and with the first liquid pass hole 401
The second liquid pass hole 701, differential valve element 7 be one end open, the other end closing and inner hollow cylinder, differential valve element 7
Openend is towards small valve core 10, and differential valve element 7 and small valve core 10 and big valve core 9 is are coaxially disposed.The inside of differential valve element 7 has
Admission chamber 705 and admission chamber 705 form opening of allowing small valve core 10 to pass through on the end face for facing small valve core 10 of differential valve element 7
Mouthful, admission chamber 705 be circular cavity, and small valve core 10 can be inserted into the admission chamber 705 of differential valve element 7 and admission chamber 705 and small valve
Core 10 is coaxial, and the length of admission chamber 705 is less than the length of differential valve element 7, and admission chamber 705 is connected with the second liquid pass hole 701,
Second liquid pass hole 701 be located at admission chamber 705 radially and the second liquid pass hole 701 connects with admission chamber 705, the second liquid pass hole
701 make the directed cavity 403 of admission chamber 705 and valve pocket 4 be in connected state all the time, the second liquid pass hole 701 also make admission chamber 705 and
First liquid pass hole 401 is in connected state, and the liquid entered through the first liquid pass hole 401 in the directed cavity 403 of valve pocket 4 passes through the
Two liquid pass holes 701 are flowed into the admission chamber 705 of differential valve element 7, and the differential valve element 7 of liquid-driving is moved during beneficial to automatically unloading
It is dynamic.
As shown in Figure 1, Figure 2, shown in Fig. 6 and Figure 10, differential valve element 7 includes feed liquor portion 704 and the support sector 703 being connected, and enters
Liquid portion 704 is used to provide big valve core 9 guide effect, and feed liquor portion 704 is inserted in the hollow cavity 902 of big valve core 9, feed liquor portion
704 be cirque structure, and admission chamber 705 is the inner chamber of feed liquor portion 704, and the second liquid pass hole 701 is in the cylindrical of feed liquor portion 704
Extend radially through the through hole of setting on face and the second liquid pass hole 701 is circular hole, axis and the feed liquor portion 704 of the second liquid pass hole 701
Axis perpendicular, the second liquid pass hole 701 divides to be evenly distributed multiple and all second liquid pass holes 701 in feed liquor portion 704
It is distributed in around admission chamber 705.Support sector 703 is cylinder, and support sector 703 is fixedly connected and propped up with one end of feed liquor portion 704
Portion 703 is held with feed liquor portion 704 to be coaxially disposed, support sector 703 closes the one end open of admission chamber 705, feed liquor portion 704 and branch
Portion 703 is held to be set gradually along the axial direction of differential valve element 7, the second liquid pass hole 701 is located proximate to support sector 703.Support sector
703 and feed liquor portion 704 insert in the directed cavity 403 of valve pocket 4, the diameter of support sector 703 is more than the overall diameter of feed liquor portion 704,
The length of support sector 703 is less than the length of feed liquor portion 704, and the diameter of support sector 703 and the diameter of the directed cavity 403 of valve pocket 4 are big
Small identical, the overall diameter of big valve core 9 is identical with the diameter of the directed cavity 403 of valve pocket 4, the interior diameter and feed liquor of big valve core 9
The overall diameter size in portion 704 is identical.
As shown in Figure 1, Figure 2, shown in Fig. 8 and Fig. 9, big valve core 9 is the cylinder of both ends open and inner hollow, big valve core 9
One end is for the sealed end that contact with valve seat 11, and the periphery of sealed end is circular conical surface and the circular conical surface as on big valve core 9
The sealing surface for realizing sealing is contacted with valve seat 11.The inside of big valve core 9 for accommodate small valve core 10 hollow cavity 902, small valve core
10 be cylinder, small valve core 10 have the lateral surface of sealing and the sealing be provided be used to contact with big valve core 9 realize it is close
The sealing surface of envelope, the sealing surface of small valve core 10 are circular conical surface, sealing be arranged at it is in the side wall of small valve core 10 and outstanding
A complete loop configuration, sealing and big valve core 9 are coaxial and sealing position in the hollow cavity 902 of big valve core 9.
Small valve core 10 and big valve core 9 are engaged realization sealing and small valve core 10 and big valve core 9 are tightly connected to be hard, after closed check valve
Good sealing effect, reliability are high.The first spring 12 is provided between differential valve element 7 and small valve core 10, the first spring 12 is used for difference
Movable valve plug 7 applies the active force for making it be moved axially towards the direction away from differential valve element 7, and the first spring 12 simultaneously passes through
Small valve core 10 promotes big valve core 9 towards movement at valve seat 11 until big valve core 9 contacts realization sealing, the first spring 12 with valve seat 11
In the admission chamber 705 of differential valve element 7 and the first spring 12 is clipped in the sealing of the internal face and small valve core 10 of differential valve element 7
Between portion, one end of the first spring 12 is against on the internal face of differential valve element 7, and the other end is against the end of the sealing of small valve core 10
On face, the first spring 12 is cylindrically coiled spring.In the presence of the first spring 12, small valve core 10 and differential valve element 7 are done opposite to each other
From motion.
As shown in Figure 1, Figure 2, shown in Fig. 8 and Figure 10, big valve core 9 is sheathed on differential valve element 7, big valve core 9 and differential valve element 7
Between be provided with link gear, differential valve element 7 and small valve core 10 are provided with spring, and link gear is arranged to make differential valve element in release
7 can drive big valve core 9 to be directed away from the direction movement of valve seat 11, big valve core 9 is separated with valve seat 11, realize check valve oneself
Dynamic release.After the sealing surface of small valve core 10 separates with big valve core 9, the admission chamber 705 of differential valve element 7 passes through small valve core 10 and big
Gap between valve element 9 connects with the 3rd liquid pass hole 301 on feed liquor set 3.Contacted in the sealing surface of small valve core 10 with big valve core 9
Afterwards, the sealing on small valve core 10 by the gap between the admission chamber 705 and small valve core 10 and big valve core 9 of differential valve element 7 every
It is disconnected, and then the admission chamber 705 of differential valve element 7 is not connected with the 3rd liquid pass hole 301 on feed liquor set 3.In upright post jack
When carrying out setting prop action, push rod promotes big valve core 9 and small valve core 10 to be directed away from the direction movement of valve seat 11, make big valve core 9 with
Valve seat 11 is separated, and opens locked cavity, realizes the unlatching of hydraulic control one-way valve, and liquid is flowed into hydraulic control one-way valve through the 3rd opening 204,
Flow into the liquid in hydraulic control one-way valve to flow into the 5th opening 206 through the 3rd liquid pass hole 301 and the 4th liquid pass hole 402 successively, liquid
Body is eventually entered into the cavity of resorption of upright post jack, realizes the setting prop action of upright post jack.Opposite, carried out in upright post jack
When dropping post, the liquid in the cavity of resorption of upright post jack is flowed into hydraulic control one-way valve through the 5th opening 206, and final liquid is opened through the 3rd
Mouth 204 flows out hydraulic control one-way valves.
As shown in Figure 1, Figure 2, shown in Fig. 8 and Figure 10, big valve core 9 has the mounting hole 901 for allowing link gear to be embedded in, differential valve element
7 have the chute 702 for allowing link gear to be embedded in, and link gear includes the sliding part 16 in embedded mounting hole 901 and chute 702
Be arranged in mounting hole 901 and the locating part 17 of position-limiting action played to sliding part 16.Mounting hole 901 is in the side of big valve core 9
The through hole of setting is extended radially through on wall and mounting hole 901 is circumferentially uniformly arranged multiple, chute in the side wall of big valve core 9
702 be along the annular groove entirely circumferentially extended on the periphery of differential valve element 7.Sliding part 16 is preferably spherical, locating part
17 be preferably in insertion mounting hole 901 and with big valve core 9 be the screw that is threadedly coupled, mounting hole 901 is internal thread hole.Locating part
17 are screwed into mounting hole 901, and sliding part 16 is compressed so that in the embedded mounting hole 901 of a part of sliding part 16, another part
In embedded chute 702, so as to realize the connection between big valve core 9 and differential valve element 7, and can make big valve core 9 with it is poor
It can be relatively rotated between movable valve plug 7, big valve core 9 will not separate with differential valve element 7, and link gear causes big valve core 9, poor
Movable valve plug 7, the spring 12 of small valve core 10 and first is formed inside valve pocket 4 can synchronization-moving integrative-structure.Chute 702 has one
Fixed length, sliding part 16 are the spherical partses to match with chute 702, and the length of chute 702 is more than the diameter of sliding part 16, made
Obtaining big valve core 9 can be movable along the axial direction relative to differential valve element 7.Chute 702 is to be arranged on the periphery of feed liquor portion 704
Groove, in the axial direction of differential valve element 7, the second liquid pass hole 701 is between support sector 703 and chute 702.
As preferable, as shown in Figure 1, Figure 2, shown in Fig. 8 and Figure 10, it is edge that sliding part 16, which sets multiple and multiple sliding parts 16,
Circumferentially it is uniformly distributed, the quantity of mounting hole 901 and locating part 17 is identical with the quantity of sliding part 16, and each locating part 17 is distinguished embedding
Enter in a mounting hole 901, each sliding part 16 is respectively embedded into a mounting hole 901, the axis and big valve core of mounting hole 901
9 axis perpendicular, mounting hole 901 and be that the through hole of setting is extended radially through in the side wall of big valve core 9.
As shown in Figure 1, Figure 2, shown in Fig. 6, Fig. 8 and Figure 10, after big valve core 9 contacts with valve seat 11, the sealing surface and valve of big valve core 9
It is linear contact lay between seat 11, forms sealing ring.Valve pocket 4 play the guiding role to differential valve element 7 and big valve core 9, and differential valve element 7 has
The sealing surface of the periphery and the periphery of differential valve element 7 contacted with valve pocket 4 and big valve core 9 is to be coaxially disposed, differential valve element 7
The periphery diameter be more than big valve core 9 sealing surface on the diameter with the sealing ring at the contact site of valve seat 11, namely
The diameter of support sector 703 be more than big valve core 9 sealing surface on the diameter at the contact site of valve seat 11, support sector 703 and valve
O-ring seal is provided between set 4, realizes sealing, the sealing ring is clipped between the inner headed face of support sector 703 and valve pocket 4.It is so logical
The different-diameter and pressure dependence of sealing position are crossed, the action under pressure differential could be completed, realizes the automatic opening of check valve
With automatic unloading.
As shown in Figure 1, Figure 2, shown in Fig. 6 and Figure 11, the first liquid pass hole 401 is the periphery in the first guide part 408 of valve pocket 4
On extend radially through the through hole of setting and the first liquid pass hole 401 is circular hole, the axis of the first liquid pass hole 401 and the axis of valve pocket 4
Perpendicular, the first liquid pass hole 401 is distributed to be evenly distributed multiple and all first liquid pass holes 401 on the first guide part 408
Around the directed cavity 403 of valve pocket 4, the first liquid pass hole 401 connects with directed cavity 403, the diameter of the second liquid pass hole 701 and
The diameter of one liquid pass hole 401 is identical.In the axial direction of valve pocket 4, the first liquid pass hole 401 is located at the 4th liquid pass hole 402 and
Between two guide parts 409.
As shown in Figure 1, Figure 2 with shown in Fig. 6, as preferable, valve pocket 4 also includes being arranged at being sheathed on the second guide part 409
And the flange 410 being fixedly connected with the second guide part 409, flange 410 are cirque structure, flange 410 is radially toward second
The outside protrusion of guide part 409, the overall diameter of flange 410 be more than the overall diameter of the first guide part 408 and the second guide part 409 and
Less than the overall diameter of connecting portion 407, the overall diameter of flange 410 is less than the diameter of the valve pocket of valve body 2, the periphery of flange 410 with
There is gap between the inner headed face of the valve pocket of valve body 2.Flange 410 is engaged with confined planes set in valve body 2 so that valve body 2
Position-limiting action can be played in the axial direction to valve pocket 4.
As shown in Figure 1, Figure 2, shown in Fig. 6 and Figure 12, pressure-regulating portion 404 is the cylinder of both ends open and inner hollow, pressure-regulating portion
404 overall diameter is identical with the overall diameter size of the second guide part 409, and the length of pressure-regulating portion 404 is more than the second guide part 409
Length, one end of pressure-regulating portion 404 is fixedly connected with the second guide part 409 and the end of pressure-regulating portion 404 is located at the valve pocket of valve body
In, the other end of pressure-regulating portion 404 is located at the outside of valve body, and the inside of pressure-regulating portion 404 has the pressure regulating cavity for accommodating pressure regulating device
406, pressure regulating cavity 406 is the circular cavity at the inside center of pressure-regulating portion 404.Pressure regulating device includes movably being arranged at tune
The inside of splenium 404 and contacted with differential valve element 7 spring base 8, be arranged at the inside of pressure-regulating portion 404 and be with pressure-regulating portion 404
The voltage regulation screw 15 of threaded connection and the pressure spring 14 being arranged between voltage regulation screw 15 and spring base 8, valve pocket 4, which has, to be allowed
The avoid holes 405 that spring base 8 passes through.Avoid holes 405 are to be arranged at the circular hole at the inside center of the second guide part 409, are avoided
Hole 405 is coaxially disposed with directed cavity 403 and the diameter of avoid holes 405 is less than the diameter of directed cavity 403.In the axial direction of valve pocket 4,
Between directed cavity 403 and pressure regulating cavity 406, avoid holes 405 can connect avoid holes 405 with directed cavity 403 and pressure regulating cavity 406.
Second guide part 409 is used to play spring base 8 axial limiting effect, and voltage regulation screw 15, spring base 8 and pressure spring 14 are set
In the pressure regulating cavity 406 of pressure-regulating portion 404.Voltage regulation screw 15 closes the one end open of pressure-regulating portion 404, the second guide part 409 with
The other end of pressure-regulating portion 404 is fixedly connected and the second guide part 409 closes the end opening of pressure-regulating portion 404.Spring base 8 passes through
The avoid holes 405 of second guide part 409 are simultaneously inserted in air storing cavity 18, and air storing cavity 18 is positioned at the inside of valve pocket 4 and is located at different valve
The cavity between the inner bottom surface relative with the end face of differential valve element 7 in the end face of core 7 and the second guide part 409, differential valve element 7
End face and the inner bottom surface of the second guide part 409 be plane with the axis perpendicular of the differential guide part 409 of valve element 7 and second,
I.e. air storing cavity 18 is a part for the directed cavity 403 of valve pocket 4, and air storing cavity 18 is positioned at the differential guide part 409 of valve element 7 and second
Between cavity, be introduced into liquid in air storing cavity 18, in the axial direction of valve pocket 4, avoid holes 405 are located at air storing cavity 18 and pressure regulation
Between chamber 406, avoid holes 405 can connect with air storing cavity 18 and pressure regulating cavity 406.Spring base 8 is clipped in pressure spring 14 and different valve
Between core 7, the active force that pressure spring 14 applies to spring base 8 makes spring base 8 remain contact condition with differential valve element 7,
And then apply elastic acting force vertically to differential valve element 7.Pressure spring 14 is simultaneously used to promote differential valve element 7 towards close to valve
The direction of seat 11 moves, and realizes the reset of differential valve element 7, and then realize the closing of hydraulic control one-way valve.It is past in differential valve element 7
During multiple movement, avoid holes 405 make air storing cavity 18 and pressure regulating cavity 406 be in connected state, air storing cavity 18 and pressure regulating cavity 406
In gas can flow back and forth.When differential valve element 7 is directed away from the direction movement of valve seat 11, differential valve element 7 is by air storing cavity
Air is pushed into pressure regulating cavity 406 through avoid holes 405 in 18, and pressure regulating cavity 406 is also introduced into liquid.
As shown in Figure 1, Figure 2, shown in Fig. 6 and Figure 12, voltage regulation screw 15 is cylinder, and voltage regulation screw 15 and pressure-regulating portion 404 are spiral shell
Line connects, and the periphery of voltage regulation screw 15 is provided with external screw thread, and the inner headed face of pressure-regulating portion 404 is provided with internal thread, voltage regulation screw
15 position-adjustable inside pressure-regulating portion 404, therefore voltage regulation screw 15 is set to be threadedly coupled with pressure-regulating portion 404, this
Sample is easy to adjust axial location of the voltage regulation screw 15 in pressure-regulating portion 404.Pressure spring 14 is clipped in spring base 8 and voltage regulation screw 15
Between, when voltage regulation screw 15 is in diverse location, the pretightning force of pressure spring 14 is of different sizes, therefore can realize fluid-control one-way
The regulation of valve operating pressure size, makes hydraulic control one-way valve can adapt to the job requirement of different pressures, improves hydraulic control one-way valve
Versatility.
As shown in Figure 1, Figure 2, shown in Fig. 6 and Figure 11, spring base 8 is by limiting section 801, first boss 802 and second boss
803 are formed, and limiting section 801, first boss 802 and second boss 803 are cylinder, first boss 802 and second boss
803 are fixedly connected in the side of limiting section 801 with limiting section 801 respectively, form the spring base 8 of integrative-structure.First boss
802 and second boss 803 be coaxially disposed with limiting section 801, the diameter of limiting section 801 is more than first boss 802 and second boss
803 diameter, the diameter of limiting section 801 are more than the diameter of avoid holes 405, and the diameter of first boss 802 is less than avoid holes 405
Diameter.Pressure spring 14 is cylindrically coiled spring, and second boss 803 is for insertion into pressure spring 14 to pressure spring 14
One end positioned.First boss 802 one end insertion air storing cavity 18 in contacted with differential valve element 7, first boss 802 it is another
One end is fixedly connected with the limiting section 801 inside pressure-regulating portion 404, and limiting section 801 is located at the pressure regulating cavity 406 of pressure-regulating portion 404
In, the diameter of limiting section 801 is more than the diameter of avoid holes 405.Hydraulic control one-way valve closing after, the second guide part 409 with it is spacing
Portion 801 contacts, and the second guide part 409 plays position-limiting action to spring base 8.
As shown in Figure 1, Figure 2 with shown in Figure 12, in use, the present invention hydraulic control one-way valve changed with upright post jack and 3-position 4-way
Connected to valve, the 3rd working hole PA (i.e. working hole PA in Figure 12) of hydraulic control one-way valve and the 7th working hole PB are (i.e. in Figure 12
Working hole PB) be connected with three position four-way directional control valve, the first working hole B (i.e. working hole B in Figure 12) of hydraulic control one-way valve and
5th working hole A1 (i.e. working hole A in Figure 12) is connected with upright post jack, and the first working hole simultaneously has with upright post jack
Rod cavity is connected, and the 5th working hole is simultaneously connected with the rodless cavity of upright post jack, and the 4th working hole PA ' of hydraulic control one-way valve (schemes
Working hole PA ' in 12) and the 8th working hole PB ' (i.e. working hole PB ' in Figure 12) and the hydraulic control one-way valve for connecing other adjacent frame,
The 6th working hole A2 (i.e. working hole A2 in Figure 12) of hydraulic control one-way valve is used for pressure gauge or pressure sensor with outside
Connect to meet other desired needs.
Upright post jack carry out setting prop action process be：When working condition requirement upright post jack rises, pass through three four
The control of logical reversal valve, opens the 3rd working hole of hydraulic control one-way valve, fluid enters hydraulic control one-way valve, and hydraulic control one-way valve is opened
Open, high-voltage oil liquid enters the cavity of resorption (i.e. rodless cavity) of upright post jack through hydraulic control one-way valve, with the entrance of high-voltage oil liquid so that
Upright post jack overcomes top roof pressure and risen, after upright post jack rises to predetermined altitude, three position four-way directional control valve
Stop the 3rd working hole feed flow to hydraulic control one-way valve, the core assembly of hydraulic control one-way valve is due to the spring effect reset shape of inside
Into locking states, now upright post jack holding holding state.
Upright post jack carries out dropping the process that post acts：When working condition requirement upright post jack declines, pass through three four
The control of logical reversal valve, opens the 7th working hole of hydraulic control one-way valve, fluid enters hydraulic control one-way valve, into hydraulic control one-way valve
In fluid promote the push rod movement of core assembly, and then big valve core 9 is separated with valve seat 11, opening locked cavity, while fluid
Enter the epicoele (i.e. rod chamber) of upright post jack by the first working hole, the high-voltage oil liquid in the cavity of resorption of upright post jack is reverse
Flow into hydraulic control one-way valve, and three position four-way directional control valve is flowed into by the 3rd working hole, eventually enter into major loop, now column thousand
Jin top declines, and when upright post jack drops to desired height, three position four-way directional control valve stops the 7th work to hydraulic control one-way valve
Make confession liquid, the core assembly of hydraulic control one-way valve is because the spring effect of inside resets to form locking states, and now column is very heavy
Recover holding state in top.
When the pressure of the lower intracavitary of upright post jack exceedes the operating pressure of hydraulic control one-way valve, hydraulic control one-way valve can be automatic
Open release so that the pressure fluid outflow of the lower intracavitary of upright post jack, realize pressure reduction, complete unloading for upright post jack
Carry, it is ensured that the security of hydraulic system, and make hydraulic control one-way valve without external overflow valve (i.e. safety valve), without relying upon external
Overflow valve realizes release, and liquid will not be discharged into outside hydraulic system, will not thus cause liquid waste and impurely under
Environment.
The present invention is exemplarily described above in association with accompanying drawing.Obviously, present invention specific implementation is not by above-mentioned side
The limitation of formula.As long as employ the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress；Or not
It is improved, the above-mentioned design of the present invention and technical scheme are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (10)
1. hydraulic control one-way valve, including valve body, swivel nut, feed liquor set, valve seat, valve pocket, the big valve core being arranged inside valve pocket and setting
Small valve core inside big valve core, it is characterised in that：Also include movably being arranged inside the valve pocket and for controlling institute
State differential valve element that big valve core moves and be arranged inside valve pocket and for applying the tune of elastic acting force to differential valve element
Press mechanism.
2. hydraulic control one-way valve according to claim 1, it is characterised in that：The valve pocket have allow liquid by and make liquid
Flow into promote the first liquid pass hole of the differential valve element movement inside valve pocket, differential valve element drives the big valve while movement
Core is directed away from the direction movement of valve seat.
3. hydraulic control one-way valve according to claim 2, it is characterised in that：The differential valve element have allow liquid by and with
Second liquid pass hole of the first liquid pass hole connection.
4. hydraulic control one-way valve according to any one of claims 1 to 3, it is characterised in that：The big valve core is sheathed on the difference
On movable valve plug, link gear is provided between big valve core and differential valve element, differential valve element and small valve core are provided with spring, and link gear is set
It is set to the direction movement for enabling differential valve element drive big valve core to be directed away from the valve seat in release.
5. hydraulic control one-way valve according to claim 4, it is characterised in that：The big valve core, which has, makes the link gear embedding
The mounting hole entered, the differential valve element have the chute for allowing link gear to be embedded in, and link gear includes embedded mounting hole and chute
In sliding part and be arranged in mounting hole and the locating part of position-limiting action played to sliding part, sliding part be it is spherical, locating part with
Big valve core is threaded connection, and mounting hole is internal thread hole.
6. hydraulic control one-way valve according to any one of claims 1 to 5, it is characterised in that：The swivel nut by screw with it is described
Feed liquor set connection, feed liquor set with allow screw insert internal thread hole, swivel nut have allow screw insert lock groove, feed liquor set with
The valve pocket is threaded connection, and swivel nut is to be threadedly coupled with the valve body.
7. hydraulic control one-way valve according to claim 6, it is characterised in that：The lock groove is the periphery in the swivel nut
On along the annular groove entirely circumferentially extended, the screw sets multiple and multiple screws to be uniformly distributed circumferentially.
8. according to any described hydraulic control one-way valve of claim 5 to 7, it is characterised in that：The differential valve element includes being connected
Feed liquor portion and support sector, the big valve core be sheathed in feed liquor portion and feed liquor portion be used for big valve core provide guide effect, institute
It is to be more than institute along the annular groove entirely circumferentially extended, the diameter of the support sector on the periphery for be arranged at feed liquor portion to state chute
State and be more than the diameter of the feed liquor portion with the diameter at valve seat contact site, the diameter of support sector on the sealing surface of big valve core.
9. hydraulic control one-way valve according to any one of claims 1 to 8, it is characterised in that：The pressure regulating device includes removable
Be arranged at spring base contact inside the valve pocket and with differential valve element, be arranged inside valve pocket and be to be threadedly coupled with valve pocket
Voltage regulation screw and the pressure spring structure that is arranged between voltage regulation screw and spring base, valve pocket have allow spring base to pass through to keep away
Allow hole.
10. hydraulic control one-way valve according to claim 9, it is characterised in that：The spring base is by limiting section, first boss
Form with second boss, first boss and second boss are fixedly connected respectively in the side of limiting section with limiting section and limiting section
Overall diameter is more than the overall diameter of first boss and second boss, and second boss is inserted in the pressure spring, and first boss is used for
Contacted with the differential valve element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711018480.4A CN107842382A (en) | 2017-10-27 | 2017-10-27 | Hydraulic control one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711018480.4A CN107842382A (en) | 2017-10-27 | 2017-10-27 | Hydraulic control one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107842382A true CN107842382A (en) | 2018-03-27 |
Family
ID=61662909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711018480.4A Withdrawn CN107842382A (en) | 2017-10-27 | 2017-10-27 | Hydraulic control one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107842382A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669484A (en) * | 2021-07-30 | 2021-11-19 | 湖南腾智机电有限责任公司 | Built-in check valve |
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| EP0523328A2 (en) * | 1991-07-17 | 1993-01-20 | Richard Voss Grubenausbau Gmbh | Adjustable spraying valve |
| CN202560256U (en) * | 2012-04-10 | 2012-11-28 | 巨隆集团芜湖兴隆液压有限公司 | Plug-in type stand column hydraulic control one-way valve |
| CN203130118U (en) * | 2013-03-05 | 2013-08-14 | 巨隆集团芜湖兴隆液压有限公司 | Differential pressure combination valve |
| CN203441509U (en) * | 2013-09-04 | 2014-02-19 | 巨隆集团芜湖兴隆液压有限公司 | Novel large-flow hydraulic control one-way valve |
| CN204200248U (en) * | 2014-11-05 | 2015-03-11 | 乐清市东风煤矿设备有限公司 | A kind of coal mine hydraulic supporting column pilot operated check valve |
| CN105909583A (en) * | 2016-03-02 | 2016-08-31 | 杭州力龙液压有限公司 | Buffer overflow valve and hydraulic system |
| CN205990922U (en) * | 2016-05-13 | 2017-03-01 | 鑫矿液压科技有限公司 | Column pilot operated check valve |
-
2017
- 2017-10-27 CN CN201711018480.4A patent/CN107842382A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0523328A2 (en) * | 1991-07-17 | 1993-01-20 | Richard Voss Grubenausbau Gmbh | Adjustable spraying valve |
| CN202560256U (en) * | 2012-04-10 | 2012-11-28 | 巨隆集团芜湖兴隆液压有限公司 | Plug-in type stand column hydraulic control one-way valve |
| CN203130118U (en) * | 2013-03-05 | 2013-08-14 | 巨隆集团芜湖兴隆液压有限公司 | Differential pressure combination valve |
| CN203441509U (en) * | 2013-09-04 | 2014-02-19 | 巨隆集团芜湖兴隆液压有限公司 | Novel large-flow hydraulic control one-way valve |
| CN204200248U (en) * | 2014-11-05 | 2015-03-11 | 乐清市东风煤矿设备有限公司 | A kind of coal mine hydraulic supporting column pilot operated check valve |
| CN105909583A (en) * | 2016-03-02 | 2016-08-31 | 杭州力龙液压有限公司 | Buffer overflow valve and hydraulic system |
| CN205990922U (en) * | 2016-05-13 | 2017-03-01 | 鑫矿液压科技有限公司 | Column pilot operated check valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669484A (en) * | 2021-07-30 | 2021-11-19 | 湖南腾智机电有限责任公司 | Built-in check valve |
| CN113669484B (en) * | 2021-07-30 | 2023-05-26 | 湖南腾智机电有限责任公司 | Built-in one-way valve |
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