CN107387138A - The core assembly of hydraulic control one-way valve - Google Patents
The core assembly of hydraulic control one-way valve Download PDFInfo
- Publication number
- CN107387138A CN107387138A CN201710841648.5A CN201710841648A CN107387138A CN 107387138 A CN107387138 A CN 107387138A CN 201710841648 A CN201710841648 A CN 201710841648A CN 107387138 A CN107387138 A CN 107387138A
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- China
- Prior art keywords
- valve
- core
- joint
- light bar
- hydraulic control
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention discloses a kind of core assembly of hydraulic control one-way valve, including the valve rod being movably arranged, the small valve core and valve pocket being sheathed on valve rod, it is sheathed on valve rod and is the swivel nut that is threadedly coupled with valve rod, it is sheathed on swivel nut and valve rod and is moveable big valve core, it is sheathed on valve rod and is clipped in the valve core spring between swivel nut and small valve core, the valve rod spring and joint or screw plug set being clipped between valve rod and valve pocket, joint or screw plug set are sheathed on valve rod, it is to be threadedly coupled that joint or screw plug, which are covered with the valve body of valve pocket and hydraulic control one-way valve, swivel nut is used to play position-limiting action to big valve core in the axial direction, valve pocket is used to play position-limiting action to valve rod in the axial direction, valve pocket is located between big valve core and joint or screw plug set.The core assembly of the hydraulic control one-way valve of the present invention, it is the structure of integral type so that the level of integrated system of whole hydraulic control one-way valve is higher, is easy to the assembling and later maintenance of hydraulic control one-way valve, directly can repair hydraulic control one-way valve by changing core assembly.
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 the core assembly of check valve.
Background technology
With the important component of coal-mine integrated-mining equipment --- the continuous development of hydraulic support technology, its working resistance and
Bearing height improves constantly, and column cylinder diameter is also continuing to increase, and for maximum supporting height up to 7 meters, column cylinder diameter reaches 500 millis
Rice, and these require that the flow of column pilot operated check valve is increasing, to meet the quick setting prop of hydraulic support, fast prompt drop post
It is required that meanwhile, it is also contemplated that convenient replacing and the maintenance of hydraulic control one-way valve are realized, to adapt to the adverse circumstances of underground and fully mechanized coal face
Requirement to downtime.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art.Therefore, the present invention proposes a kind of hydraulic control
The core assembly of check valve, it is therefore an objective to improve the convenience of hydraulic control one-way valve maintenance.
To achieve these goals, the technical scheme taken of the present invention is：The core assembly of hydraulic control one-way valve, including it is removable
The dynamic valve rod set, the small valve core being sheathed on valve rod and valve pocket, be sheathed on valve rod and with valve rod be threadedly coupled swivel nut,
It is sheathed on the valve element on swivel nut and valve rod and being moveable big valve core, being sheathed on valve rod and being clipped between swivel nut and small valve core
Spring, the valve rod spring being clipped between valve rod and valve pocket and joint or screw plug set, joint or screw plug set are sheathed on valve rod, connect
It is to be threadedly coupled that head or screw plug, which are covered with the valve body of valve pocket and hydraulic control one-way valve, and swivel nut is used for spacing to big valve core in the axial direction
Effect, valve pocket are used in the axial direction play valve rod position-limiting action, and valve pocket is located between big valve core and joint or screw plug set.
The valve pocket is inserted in joint or the screw plug set, and the end of valve pocket is provided with the end of external screw thread, joint or screw plug set
Portion is provided with internal thread.
The valve rod include set gradually vertically the first light bar segment, the second light bar segment, the 3rd light bar segment, the 4th polished rod
Section and thread segment, thread segment are provided with external screw thread, and the swivel nut has the internal thread hole for allowing thread segment to insert, and the valve pocket is sheathed on
In second light bar segment, the big valve core is sheathed in the 3rd light bar segment, and the small valve core is sheathed in the 4th light bar segment, the valve
Bar spring housing is in the second light bar segment and is clipped between the first light bar segment and valve pocket, inside the first light bar segment insertion joint.
First light bar segment, the second light bar segment, the 3rd light bar segment, the 4th light bar segment and a diameter of of thread segment gradually subtract
It is small.
The inside of the valve rod is provided with crosses liquid passage by what the hollow cavity of the swivel nut connected with the valve pocket of the valve body,
It is on the end face for extending to thread segment since on the periphery of the 4th light bar segment to cross liquid passage.
The swivel nut includes the guide section set gradually vertically and spacing section, and the overall diameter of guide section is less than spacing section
Overall diameter, the big valve core are sheathed on guide section.
The inside of the joint is provided with working hole, allows the liquid pass hole and accommodate the valve rod and connect with working hole that fluid passes through
Logical hollow cavity, one end of joint are located at the outside of the valve body for external part and the external part, and working hole is from joint
The end face of external part starts the circular hole extended along the inside for being axially facing joint of joint.
The liquid pass hole of the joint extends for the inside for being radially orientated joint along joint since on the periphery of joint
Circular hole, liquid pass hole is connected with the working hole and the axis perpendicular of the axis of liquid pass hole and joint.
The liquid pass hole sets multiple and multiple liquid pass holes to be uniformly distributed circumferentially on joint.
The core assembly of the hydraulic control one-way valve of the present invention, it is the structure of integral type so that the system of whole hydraulic control one-way valve
Integrated level is higher, is easy to the assembling and later maintenance of hydraulic control one-way valve, that is, install it is simple, easy to maintenance, directly by changing valve
Core assembly can repair hydraulic control one-way valve.
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；
Fig. 2 is the top view of hydraulic control one-way valve；
Fig. 3 is the sectional view of the first core assembly of the invention；
Fig. 4 is the sectional view of the second core assembly of the invention；
Fig. 5 is the sectional view of valve rod；
Fig. 6 is the sectional view of swivel nut；
Fig. 7 is the use state diagram of hydraulic control one-way valve；
In figure mark for：
1st, the first working hole；2nd, the second working hole；
3rd, valve body；301st, the first valve pocket；302nd, the second valve pocket；303rd, first end face；304th, second end face；305th, the 3rd end
Face；306th, the 4th end face；307th, the 5th end face；308th, the 6th end face；
4th, joint；401st, the first liquid pass hole；402nd, hollow cavity；
5th, valve rod；501st, the first light bar segment；502nd, the second light bar segment；503rd, the 3rd light bar segment；504th, the 4th light bar segment；
505th, thread segment；506th, liquid passage is crossed；507th, oil duct；
6th, swivel nut；601st, guide section；602nd, spacing section；603rd, internal thread hole；604th, hollow cavity；
7th, valve pocket；701st, the second liquid pass hole；702nd, locked cavity；
8th, screw plug set；801st, the 3rd liquid pass hole；802nd, hollow cavity；
9th, big valve core；10th, small valve core；11st, valve core spring；12nd, valve rod spring；
13rd, the 3rd working hole；14th, the 4th working hole；15th, the 5th working hole；16th, the 6th working hole；17th, the 7th work
Mouthful；18th, the 8th working hole；19th, valve seat.
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 6, the invention provides a kind of core assembly of hydraulic control one-way valve, the hydraulic control one-way valve to include
The core assembly of valve body 3 and the present invention, core assembly is provided with two and two core assemblies are arranged in valve body 3.For two
Core assembly, if one of core assembly is the first core assembly, if another core assembly is the second core assembly.This hair
The first bright core assembly include be movably arranged valve rod, be sheathed on valve rod small valve core 10, valve pocket 7 and joint 4, be arranged
In be the swivel nut 6 being threadedly coupled on valve rod and with valve rod, be sheathed on swivel nut 6 and valve rod and be moveable big valve core 9, be arranged
In on valve rod and the valve core spring 11 being clipped between swivel nut 6 and small valve core 10 and the valve rod bullet being clipped between valve rod and valve pocket 7
Spring 12, joint 4 are to be threadedly coupled with valve pocket 7 and valve body 3, and swivel nut 6 is used to play position-limiting action, valve to big valve core 9 in the axial direction
Set 7 is used to play position-limiting action to valve rod in the axial direction, and valve pocket 7 is between big valve core 9 and joint 4.
Specifically, as depicted in figs. 1 and 2, the inside of valve body 3 has the first valve pocket 301 for accommodating the first core assembly
With the second valve pocket 302 for accommodating the second core assembly, the first valve pocket 301 and the second valve pocket 302 are circular cavity, the first valve pocket
The axis of 301 axis and the second valve pocket 302 is parallel, and the first valve pocket 301 and the second valve pocket 302 are from same one end of valve body 3
Face extends the hollow cavity to be formed initially towards the inside of valve body 3, and the first valve pocket 301 forms one on one end end face of valve body 3
Individual to be open and set the opening as the first opening, the second valve pocket 302 forms an opening on one end end face of valve body 3 and sets this and opens
Mouth is the second opening, and the first opening and second are open on the same end face of valve body 3, the first valve pocket 301 and the second valve pocket 302
Other end closing, i.e. the first valve pocket 301 and the second valve pocket 302 are set on valve body 3 for non-through.First core assembly is
One opening is inserted in the first valve pocket 301, and the second core assembly is inserted in the second valve pocket 302 in the second opening, the first valve element
Component is inserted in the first valve pocket 301 and with valve body 3 to be threadedly coupled, and the second core assembly inserts in the second valve pocket 302 and and valve
Body 3 is threaded connection, and two core assemblies are structure as a whole, and two core assemblies are arranged to be threadedly coupled with valve body 3, conveniently tear open
Dress and maintenance.
As depicted in figs. 1 and 2, valve body 3 is rectangular block shape structure, valve body 3 have first end face 303, second end face 304,
3rd end face 305, the 4th end face 306, the 5th end face 307 and the 6th end face 308, first end face 303 and second end face 304 are valve
Both ends end face on the width of body 3, first end face 303 and second end face 304 is parallel and width phase with valve body 3
Vertically, the first opening and the second opening are arranged in first end face 303.3rd end face 305 and the 4th end face 306 are valve body 3
Both ends end face on length direction, the 3rd end face 305 and the 4th end face 306 are parallel and perpendicular with the length direction of valve body 3,
5th end face 307 and the 6th end face 308 are the both ends end face on the thickness direction of valve body 3, the 5th end face 307 and the 6th end face
308 is parallel and perpendicular with the thickness direction of valve body 3.Valve body 3 is provided with 1, second working hole of first working hole
2nd, a working hole 16 of the 4th working hole 14, one of the 3rd working hole 13, one the 5th working hole 15, one the 6th and one
Eight working holes 18, the first core assembly are provided with the 7th working hole 17, the first working hole 1 and the 3rd working hole 13 be used for
Outside three position four-way directional control valve connection, the 7th working hole 17 and the 8th working hole 18 are used to connect with the upright post jack of outside
Connect.Second working hole 2 and the 4th working hole 14 can be used for the hydraulic control one-way valve of adjoining frame, when two hydraulic control one-way valves are connected
In use, the second working hole 2 of one of hydraulic control one-way valve is connected with the first working hole 1 of another hydraulic control one-way valve, its
In the 4th working hole 14 of a hydraulic control one-way valve be connected with the 3rd working hole 13 of another hydraulic control one-way valve.5th working hole
15 and the 6th working hole 16 can be used for outside safety valve, pressure gauge or pressure sensor be connected to meet other requirements
Needs, the 5th working hole 15 and the 6th working hole 16 can also use chock to be blocked when need not using, i.e.,
Five working holes 15 and the 6th working hole 16 can be closed, and fluid can not pass through after closing.
As depicted in figs. 1 and 2, the first working hole 1, the 3rd working hole 13 and the 5th working hole 15 are from the 4th of valve body 3
Circular hole that end face 306 extends initially towards the inside of valve body 3, the first working hole 1, the second working hole 2 and the 5th working hole 15
Axis it is parallel and with the axis perpendicular of the second valve pocket 302, the first working hole 1, the second working hole 2 and the 5th working hole 15 with
Second valve pocket 302 connects, and the first working hole 1, the 3rd working hole 13 and the 5th working hole 15 are in the width phase with valve body 3
On parallel same straight line and the first working hole 1 and between the 3rd working hole 13 and the 5th working hole 15.Second working hole
2nd, the 4th working hole 14 and the 6th working hole 16 are the circle extended from the 3rd end face 305 of valve body 3 initially towards the inside of valve body 3
Hole, the axis of the second working hole 2, the 4th working hole 14 and the 6th working hole 16 it is parallel and with the axis phase of the first valve pocket 301
Vertically, the second working hole 2, the 4th working hole 14 and the 6th working hole 16 connect with the first valve pocket 301, the second working hole the 2, the 4th
The working hole 16 of working hole 14 and the 6th is on the same straight line parallel with the width of valve body 3 and the second working hole 2
Between the 4th working hole 14 and the 6th working hole 16, the first working hole 1 and the second working hole 2 are in the length side with valve body 3
To on parallel same straight line, the 3rd working hole 13 and the 4th working hole 14 are in parallel with the length direction of valve body 3
On same straight line, the 5th working hole 15 and the 6th working hole 16 are on the same straight line parallel with the length direction of valve body 3.
8th working hole 18 is the circular hole initially towards the inside extension of valve body 3, the 8th working hole 18 from the 5th end face 307 of valve body 3
Axis and the first valve pocket 301 and the second valve pocket 302 axis it is spatially perpendicular, the 8th working hole 18 and with the first valve pocket
301 are connected with the second valve pocket 302, and the 8th working hole 18 is simultaneously between the first valve pocket 301 and the second valve pocket 302, the first valve pocket
301 are connected with the second valve pocket 302.
As shown in figures 1 and 3, valve pocket 7 is inserted in joint 4, and the end of valve pocket 7 is provided with external screw thread, and the end of joint 4 is provided with
Internal thread.The joint 4 of first core assembly is used to be connected with the upright post jack of outside, leads into the fluid in hydraulic control one-way valve
Cross joint 4 to flow into upright post jack, the fluid in upright post jack can be also flowed into hydraulic control one-way valve by joint 4.Joint 4
For cylinder, for joint 4 with valve body 3 to be threadedly coupled, the periphery of joint 4 is provided with external screw thread, the inner headed face of the first valve pocket 301
It is provided with internal thread.The inside of joint 4 is provided with the 7th working hole 17, the first liquid pass hole 401 and receiving valve rod that allow fluid to pass through
Hollow cavity 402, the 7th working hole 17 is is axially facing joint 4 since the end face of the external part of joint 4 along joint 4
The circular hole of inside extension, one end of joint 4 are located at the outside of valve body 3 for external part and the external part, and the other end of joint 4 is slotting
Enter end and the insertion end is inserted in the first valve pocket 301.First liquid pass hole 401 is to start on the periphery of joint 4 along joint 4
The circular hole of the inside extension of joint 4 is radially orientated, the first liquid pass hole 401 is connected with the 7th working hole 17 and the first liquid pass hole 401
Axis and joint 4 axis perpendicular, it is on joint 4 that the first liquid pass hole 401, which sets multiple and multiple first liquid pass holes 401,
It is uniformly distributed circumferentially, multiple first liquid pass holes 401 are distributed in the surrounding of the 7th working hole 17, the first liquid pass hole 401 and with
Four working holes 14 connect, and are realized and connected by the first liquid pass hole 401 between the 4th working hole 14 and the 7th working hole 17.In hollow
Chamber 402 is to be arranged at the circular cavity inside joint 4, and hollow cavity 402 is along joint since the end face of the insertion end of joint 4
4 inside for being axially facing joint 4 extends the cavity to be formed, and hollow cavity 402 is coaxial with the 7th working hole 17 and both are connected
It is logical, in the hollow cavity 402 of the end insertion joint 4 of valve pocket 7 and it is connected through a screw thread and realizes and be fixedly connected with joint 4.
As shown in Fig. 2, Fig. 4 and Fig. 5, valve rod includes the first light bar segment 501, the second light bar segment set gradually vertically
502nd, the 3rd light bar segment 503, the 4th light bar segment 504 and thread segment 505, the first light bar segment 501, the second light bar segment 502, the 3rd light
Bar segment 503, the 4th light bar segment 504 and thread segment 505 is are fixedly connected sequentially, the first light bar segment 501, the second light bar segment 502, the
Three light bar segments 503, the 4th light bar segment 504 and thread segment 505 be cylinder and the first light bar segment 501, the second light bar segment 502,
3rd light bar segment 503, the 4th light bar segment 504 and thread segment 505 is are fixedly and coaxially connected, the first light bar segment 501, the second light bar segment
502nd, the 3rd light bar segment 503, the 4th light bar segment 504 and a diameter of of thread segment 505 are gradually reduced, the first light bar segment 501 it is straight
Footpath is more than the diameter of the second light bar segment 502, and the diameter of the second light bar segment 502 is more than the diameter of the 3rd light bar segment 503, the 3rd polished rod
The diameter of section 503 is more than the diameter of the 4th light bar segment 504, and the diameter of the 4th light bar segment 504 is more than the diameter of thread segment 505.Spiral shell
Line section 505 is provided with external screw thread, and swivel nut 6 has the internal thread hole 603 for allowing thread segment 505 to insert.Big valve core 9 is sheathed on the 3rd light
In bar segment 503, big valve core 9 is cylinder, has at the inside center of big valve core 9 and allows the centre bore that the 3rd light bar segment 503 passes through
And the diameter of the centre bore is equal with the diameter of the 3rd light bar segment 503, big valve core 9 can be carried out relative to valve rod along the axial direction of valve rod
It is mobile.Small valve core 10 is sheathed in the 4th light bar segment 504, and small valve core 10 is cylinder, has at the inside center of bottom spool and allows
The centre bore and the diameter of the centre bore that 4th light bar segment 504 passes through are equal with the diameter of the 4th light bar segment 504, the phase of small valve core 10
It can be moved for valve rod along the axial direction of valve rod.
As shown in Figure 2 and Figure 5, valve pocket 7 is sheathed in the second light bar segment 502, and valve rod spring 12 is sheathed on the second light bar segment
On 502 and it is clipped between the first light bar segment 501 and valve pocket 7, in the hollow cavity 402 of the first light bar segment 501 insertion joint 4, the
The diameter of one light bar segment 501 is equal with the diameter of the hollow cavity 402 of joint 4, and valve pocket 7 is located at the first light bar segment 501
Side, valve rod spring 12 is cylindrically coiled spring and valve rod spring 12 is stage clip, and one end of valve rod spring 12 contradicts the first polished rod
Section 501, the other end of valve rod spring 12 contradict valve pocket 7, and valve rod spring 12, which is used to apply valve rod, makes the first light bar segment 501 along axle
Moved to the direction for being directed away from valve pocket 7, realize the reset of valve rod.Valve pocket 7 is fixedly connected with joint 4, and valve rod being capable of phase
It is movable along the axial direction for valve pocket 7.Valve pocket 7 is cylinder, and the inside of valve pocket 7, which is provided with, allows the second liquid pass hole that fluid passes through
701 and the locked cavity of valve rod is accommodated, the second liquid pass hole 701 is to start along valve pocket 7 to be radially orientated valve on the periphery of valve pocket 7
The circular hole of the inside extension of set 7, the second liquid pass hole 701 connects with locked cavity, and the second liquid pass hole 701 sets multiple and multiple second
For liquid pass hole 701 to be uniformly distributed circumferentially on valve pocket 7, multiple second liquid pass holes 701 are distributed in the surrounding of locked cavity, the second mistake
Fluid apertures 701 simultaneously connects with the second working hole 2 and the second valve pocket 302.Locked cavity is to be arranged at the circular cavity inside valve pocket 7, lock
Closed chamber is to extend the chamber to be formed along the inside for being axially facing valve pocket 7 of valve pocket 7 since the end face for facing big valve core 9 of valve pocket 7
Body, the locked cavity of the first core assembly are connected by the second liquid pass hole 701 with the second working hole 2 and the second valve pocket 302, hydraulic oil
Liquid is flowed into locked cavity through the second liquid pass hole 701.Valve pocket is used in the axial direction play valve rod position-limiting action, the first light of valve rod
The diameter of bar segment is more than the interior diameter of valve pocket, and valve pocket makes the first light bar segment of valve rod be in all the time in the hollow cavity 402 of joint,
So as to after valve pocket is connected with joint, stem dropping be avoided, form the core assembly of integral type.
As shown in Fig. 1, Fig. 3, Fig. 5 and Fig. 6, the inside of valve rod, which is provided with, makes the of the hollow cavity 604 of swivel nut 6 and valve body 3
Liquid passage 506 is crossed in the connection of one valve pocket 301, crosses liquid passage 506 to extend to spiral shell since on the periphery of the 4th light bar segment 504
On the end face of line section 505, it is L-shaped to cross liquid passage 506.Cross the hollow cavity 604 that liquid passage 506 enables fluid in swivel nut 6
Circulated between the first valve pocket 301, air pressure holding will not be so caused when valve rod moves back and forth so that valve rod and valve
The swivel nut 6 of bar connection and the big valve core 9 and small valve core 10 that are sheathed on valve rod can be normally axially moveable.Valve rod is provided with will
Guided into the fluid in locked cavity to small valve core 10 and sentence what the direction for promoting small valve core 10 towards close swivel nut 6 moved
Oil duct 507, oil duct 507 are the circular groove set on the periphery of valve rod, and the axis of oil duct 507 and the axis of valve rod exist
Spatially perpendicular, oil duct 507 is extends in the 4th light bar segment 504 since in the second light bar segment 502 of valve rod, oil duct
507 set multiple and multiple oil ducts 507 to be uniformly distributed circumferentially on the periphery of valve rod.Small valve core in original state
10 and big valve core 9 be in contact realization sealing so that locked cavity does not connect with the hollow cavity 604 of swivel nut 6, into locked cavity
High-voltage oil liquid is flowed at small valve core 10 by oil duct 507, and then high-voltage oil liquid promotes small valve core 10 axially towards close to spiral shell
The direction of set 6 moves, and small valve core 10 separates with big valve core 9, depressurization.
As shown in Fig. 1, Fig. 3, Fig. 5 and Fig. 6, swivel nut 6 is both ends open, the cylinder of inner hollow, and swivel nut 6 is included along axle
To the guide section 601 set gradually and spacing section 602, guide section 601 and spacing section 602 are cirque structure and guide section
601 and spacing section 602 to be fixedly and coaxially connected, the inner chamber of guide section 601 is accommodates the hollow of valve core spring 11 and small valve core 10
Inner chamber 604, internal thread hole 603 are arranged at spacing section 602 of inside center, and internal thread hole 603 connects with hollow cavity 604,
Valve rod is inserted in internal thread hole 603 after passing through hollow cavity 604.The overall diameter of guide section 601 is less than spacing section 602
Overall diameter, the interior diameter of guide section 601 is more than the diameter of the 4th light bar segment 504, and big valve core 9 is sheathed on guide section 601, led
Guide effect is played to 601 pairs of big valve cores 9 of section, guide section 601 is inserted in the hollow cavity of big valve core 9, and big valve core 9 is sheathed on valve
In 3rd light bar segment 503 of bar and the guide section 601 of swivel nut 6, valve rod and swivel nut 6 are engaged jointly to moveable big valve core 9
Play guide effect so that the operation of big valve core 9 is more stable, and big valve core 9 can be born larger when hydraulic control one-way valve is opened
Oil shocking, work are more reliable.And swivel nut 6 inserts the inside of big valve core 9, and other parts are not arranged outside big valve core 9, when
When being flowed in into the high-voltage oil liquid in locked cavity towards the place cavity of big valve core 9, high-voltage oil liquid flows through the appearance of big valve core 9
Face, liquid resistance can be reduced, so as to set the smaller inner chamber of valve body 3 to can be achieved with bigger flow.Valve core spring 11
Insert in the hollow cavity 604 of swivel nut 6, valve core spring 11 is simultaneously clipped between spacing section 602 and small valve core 10, and valve core spring 11 is
Cylindrically coiled spring and valve core spring 11 are stage clip, and one end of valve core spring 11 contradicts small valve core 10, valve core spring 11 it is another
End contradicts spacing section 602, and valve core spring 11, which is used to apply small valve core 10, makes small valve core 10 axially towards the side away from swivel nut 6
To moving, the reset of small valve core 10 and big valve core 9 is realized, and then realizes the closing of hydraulic control one-way valve.The He of valve core spring 11
Valve rod spring 12 is engaged, and after highly pressurised liquid stops entering in locked cavity, valve rod can be rapid in the presence of two-stage spring
Reset, so as to reduce the pressure loss and pressure oscillation.One is formed between spacing section 602 and guide section 601 to removable
Big valve core 9 play the limited step of position-limiting action, under the guide effect of valve rod and guide section 601, when big valve core 9 is by liquid
When pressure acts on, big valve core 9 moves relative to valve rod and big valve core 9 is directed away from the direction of valve pocket 7 and moved, high pressure
Fluid enters locked cavity, is contacted if big valve core 9 is moved to spacing section 602, and big valve core 9 then stops moving relative to valve rod.Valve
A step is formed between second light bar segment 502 of bar and the 3rd light bar segment 503, the diameter of the second light bar segment 502 is more than big valve
The diameter of the centre bore of core 9, when valve rod moves axially towards the direction away from joint 4, the second light bar segment 502 is used for
Big valve core 9 is promoted to be moved axially towards the direction away from valve seat 19 so that big valve core 9, small valve core 10 are synchronous with valve rod
Mobile, valve seat 19 separates with big valve core 9, depressurization, realizes the unlatching of check valve.
As shown in figures 1 and 3, hydraulic control one-way valve also include positioned at the first core assembly valve pocket 7 and big valve core 9 between and
The valve seat 19 for realizing sealing is engaged with big valve core 9, valve seat 19 is clipped between valve body 3 and valve pocket 7.Valve seat 19 is annular knot
Structure, valve seat 19, to be coaxially disposed, have in the axial direction to valve seat 19 with valve body 3 and big valve core 9 in the first valve pocket 301 of valve body 3
The confined planes of position-limiting action are played, the confined planes are engaged with valve pocket 7 clamps valve seat 19, realizes the consolidating in the axial direction of valve seat 19
It is fixed.In the axial direction of the first core assembly, joint 4, valve pocket 7, valve seat 19, big valve core 9 and swivel nut 6 is set gradually, small valve core
10 in the inner chamber of big valve core 9 and swivel nut 6, and valve core spring 11 is located in the inner chamber of swivel nut 6, and valve rod spring 12 is located at joint 4
In the inner chamber of valve pocket 7.After valve core spring 11 promotes small valve core 10 and big valve core 9 to be resetted, big valve core 9 and the phase of valve seat 19
Contact, realize sealing.
As shown in Figure 1 and Figure 4, the second core assembly of the invention include be movably arranged valve rod, be sheathed on valve rod
Small valve core 10, valve pocket 7 and screw plug set 8, be sheathed on valve rod and with valve rod be threadedly coupled swivel nut 6, be sheathed on swivel nut 6 and
On valve rod and for moveable big valve core 9, the valve core spring 11 that is sheathed on valve rod and is clipped between swivel nut 6 and small valve core 10 with
And the valve rod spring 12 between valve rod and valve pocket 7 is clipped in, screw plug set 8 is to be threadedly coupled with valve pocket 7 and valve body 3, and swivel nut 6 is used for
Position-limiting action is played to big valve core 9 in the axial direction, valve pocket 7 is used to play position-limiting action to valve rod in the axial direction, and valve pocket 7 is located at big valve core
Between 9 and screw plug set 8, screw plug covers in the second opening set on 8 insertion valve bodies 3 and closes the second opening mouth.
Shown as shown in Figure 1, Figure 3 and Figure 4, the first core assembly of the invention and the main difference of the second core assembly are
The structure of the remaining part of the difference of the structure of screw plug set 8 and joint 4, the first core assembly of the invention and the second core assembly
And the relation between each part is identical, specifically, the structure of the valve pocket 7 of the first core assembly and the second core assembly and setting
Put that mode is identical, the structure of the swivel nut 6 of the first core assembly and the second core assembly is identical with set-up mode, the first core assembly
It is identical with set-up mode with the structure of the big valve core 9 of the second core assembly, the small valve of the first core assembly and the second core assembly
The structure of core 10 is identical with set-up mode, the structure and set-up mode phase of the valve rod of the first core assembly and the second core assembly
Together, the structure of the valve core spring 11 of the first core assembly and the second core assembly is identical with set-up mode, the first core assembly and
The structure of the valve rod spring 12 of second core assembly is identical with set-up mode, will not be repeated here.
The valve pocket 7 of second core assembly is inserted in screw plug set 8, and the end of valve pocket 7 is provided with external screw thread, the end of screw plug set 8
Provided with internal thread.Screw plug set 8 is used to be connected with the upright post jack of outside, passes through screw plug set into the fluid in hydraulic control one-way valve
8 flow into upright post jack, and the fluid in upright post jack also can cover 8 by screw plug and flow into hydraulic control one-way valve.Screw plug covers 8
The cylinder of one end open, one end closing and inner hollow, for screw plug set 8 with valve body 3 to be threadedly coupled, screw plug covers 8 periphery
External screw thread is provided with, the inner headed face of the second valve pocket 302 is provided with internal thread.The inside of screw plug set 8 is provided with allow fluid passes through the
Three liquid pass holes 801 and the hollow cavity 802 for accommodating valve rod, towards valve pocket 7, the blind end of screw plug set 8 will for the openend of screw plug set 8
Second closure of openings of valve body 3, the openend of screw plug set 8 are inserted in the second valve pocket 302.3rd liquid pass hole 801 is to cover 8 in screw plug
Periphery on start along screw plug set 8 be radially orientated screw plug set 8 inside extend circular hole, the 3rd liquid pass hole 801 and first
The working hole 13 of liquid pass hole 401 and the 3rd connects and the axis perpendicular of the axis of the 3rd liquid pass hole 801 and screw plug set 8, the 3rd mistake
It is to be uniformly distributed circumferentially on screw plug set 8 that fluid apertures 801, which sets multiple and multiple 3rd liquid pass holes 801, and the 3rd liquid pass hole 801 is simultaneously
Connected with the 3rd working hole 13 and the first liquid pass hole 401, liquid is crossed by first between the 7th working hole 17 and the 3rd working hole 13
Realize and connect with the 3rd liquid pass hole 801 in hole 401.Hollow cavity 802 is to be arranged at the circular cavity inside screw plug set 8, hollow interior
Chamber 802 is to extend what is formed along the inside for being axially facing screw plug set 8 of screw plug set 8 since the end face of the openend of screw plug set 8
Cavity, hollow cavity 802 are connected with the 3rd liquid pass hole 801, in the hollow cavity 802 of the end of valve pocket 7 insertion screw plug set 8 and
It is connected through a screw thread and realizes that covering 8 with screw plug is fixedly connected.
As shown in Figure 1 and Figure 4, the second liquid pass hole 701 of the valve pocket 7 of the second core assembly and the first working hole 1 and first
Valve pocket 301 is connected, and the locked cavity of the second core assembly is connected by the second liquid pass hole 701 and the first working hole 1 and the first valve pocket 301
Logical, high-voltage oil liquid is flowed into locked cavity through the second liquid pass hole 701.Valve pocket is used in the axial direction play valve rod on position-limiting action, valve
The diameter of first light bar segment of bar is more than the interior diameter of valve pocket, and valve pocket makes the first light bar segment of valve rod be in all the time in screw plug set
In empty inner chamber 802, so as to after valve pocket is connected with joint, stem dropping be avoided, form the second core assembly of integral type.
As shown in Figure 1 and Figure 4, hydraulic control one-way valve also include positioned at the second core assembly valve pocket 7 and big valve core 9 between and
The valve seat 19 for realizing sealing is engaged with big valve core 9, valve seat 19 is clipped between valve body 3 and valve pocket 7.Valve seat 19 is annular knot
Structure, valve seat 19, to be coaxially disposed, have in the axial direction to valve seat 19 with valve body 3 and big valve core 9 in the second valve pocket 302 of valve body 3
The confined planes of position-limiting action are played, the confined planes are engaged with valve pocket 7 clamps valve seat 19, realizes the consolidating in the axial direction of valve seat 19
It is fixed.In the axial direction of the second core assembly, joint 4, valve pocket 7, valve seat 19, big valve core 9 and swivel nut 6 is set gradually, small valve core
10 in the inner chamber of big valve core 9 and swivel nut 6, and valve core spring 11 is located in the inner chamber of swivel nut 6, and valve rod spring 12 is located at joint 4
In the inner chamber of valve pocket 7.After valve core spring 11 promotes small valve core 10 and big valve core 9 to be resetted, big valve core 9 and the phase of valve seat 19
Contact, realize sealing.The valve seat 19 and the knot for the valve seat 19 being engaged with the second core assembly being engaged with the first core assembly
Structure is identical with set-up mode.
As shown in Figure 1, Figure 2 with shown in Fig. 6, in use, hydraulic control one-way valve is connected with upright post jack and three position four-way directional control valve,
First working hole 1 (i.e. PA working holes in Fig. 6) of hydraulic control one-way valve and the 3rd working hole 13 (i.e. PB working holes in Fig. 6) with
Three position four-way directional control valve connects, the 7th working hole 17 (i.e. B working holes in Fig. 6) of hydraulic control one-way valve and the 8th working hole 18
(i.e. A working holes in Fig. 6) is connected with upright post jack, and the 7th working hole 17 is simultaneously connected with the rod chamber of upright post jack, the
Eight working holes 18 are simultaneously connected with the rodless cavity of upright post jack, the second working hole 2 (i.e. PA in Fig. 6, the work of hydraulic control one-way valve
Mouthful) and hydraulic control one-way valve of the 4th working hole 14 (i.e. PB in Fig. 6, working hole) with connecing adjacent frame in addition, the of hydraulic control one-way valve
Five working holes 15 (i.e. A1 working holes in Fig. 6) and the 6th working hole 16 (i.e. A2 working holes in Fig. 6) are used for the peace with outside
Full valve, pressure gauge or pressure sensor are connected 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 first working hole 1 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 feed flow of the first working hole 1 to hydraulic control one-way valve, two core assemblies of hydraulic control one-way valve are due to the spring effect of inside
Reset forms locking states, and now upright post jack keeps 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 3rd working hole 13 of hydraulic control one-way valve, fluid enters hydraulic control one-way valve, into fluid-control one-way
Fluid in valve promotes the valve rod movement of two core assemblies, and then big valve core 9 is separated with valve seat 19, opens locked cavity, together
When fluid enter the epicoele (rod chamber) of upright post jack, the high pressure in the cavity of resorption of upright post jack by the 7th working hole 17
Fluid is reversely flowed into hydraulic control one-way valve, and flows into three position four-way directional control valve by the first working hole 1, eventually enters into major loop,
Now upright post jack declines, and when upright post jack drops to desired height, three position four-way directional control valve stops to fluid-control one-way
The feed flow of the 3rd working hole 13 of valve, two core assemblies of hydraulic control one-way valve reset to form locking shape due to the spring effect of inside
State, now upright post jack recovery holding state.
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 (9)
1. the core assembly of hydraulic control one-way valve, it is characterised in that：Including the valve rod being movably arranged, the small valve being sheathed on valve rod
Core and valve pocket, be sheathed on valve rod and be the swivel nut being threadedly coupled with valve rod, be sheathed on swivel nut and valve rod on and be moveable
Big valve core, the valve core spring for being sheathed on valve rod and being clipped between swivel nut and small valve core, the valve rod being clipped between valve rod and valve pocket
Spring and joint or screw plug set, joint or screw plug set are sheathed on valve rod, joint or screw plug set and valve pocket and hydraulic control one-way valve
Valve body be threaded connection, swivel nut be used in the axial direction to big valve core rise position-limiting action, valve pocket be used in the axial direction to valve rod
Position-limiting action is played, valve pocket is located between big valve core and joint or screw plug set.
2. the core assembly of hydraulic control one-way valve according to claim 1, it is characterised in that：The valve pocket inserts the joint
Or in screw plug set, the end of valve pocket is provided with external screw thread, and the end that joint or screw plug cover is provided with internal thread.
3. the core assembly of hydraulic control one-way valve according to claim 1, it is characterised in that：The valve rod include vertically according to
The first light bar segment, the second light bar segment, the 3rd light bar segment, the 4th light bar segment and the thread segment of secondary setting, thread segment are provided with external screw thread,
The swivel nut has the internal thread hole for allowing thread segment to insert, and the valve pocket is sheathed in the second light bar segment, and the big valve core is arranged
In in the 3rd light bar segment, the small valve core is sheathed in the 4th light bar segment, the valve rod spring housing in the second light bar segment and
It is clipped between the first light bar segment and valve pocket, inside the first light bar segment insertion joint.
4. the core assembly of hydraulic control one-way valve according to claim 3, it is characterised in that：First light bar segment, second
Light bar segment, the 3rd light bar segment, the 4th light bar segment and a diameter of of thread segment are gradually reduced.
5. the core assembly of the hydraulic control one-way valve according to claim 3 or 4, it is characterised in that：The inside of the valve rod is set
Have and cross liquid passage by what the hollow cavity of the swivel nut connected with the valve pocket of the valve body, it is from the 4th polished rod to cross liquid passage
Start to extend on the end face of thread segment on the periphery of section.
6. the core assembly of hydraulic control one-way valve according to any one of claims 1 to 5, it is characterised in that：The swivel nut includes
The guide section set gradually vertically and spacing section, the overall diameter of guide section are less than spacing section of overall diameter, the big valve core set
On guide section.
7. the core assembly of hydraulic control one-way valve according to any one of claims 1 to 6, it is characterised in that：The joint it is interior
Portion is provided with working hole, the liquid pass hole and the receiving valve rod and the hollow cavity connected with working hole that allow fluid to pass through, joint
One end is the outside that external part and the external part are located at the valve body, and working hole is that edge connects since the end face of the external part of joint
The circular hole of the inside for the being axially facing joint extension of head.
8. the core assembly of hydraulic control one-way valve according to claim 7, it is characterised in that：The liquid pass hole of the joint be from
Start the circular hole extended along the inside for being radially orientated joint of joint on the periphery of joint, liquid pass hole connects with the working hole
And the axis of liquid pass hole and the axis perpendicular of joint.
9. the core assembly of the hydraulic control one-way valve according to claim 7 or 8, it is characterised in that：The liquid pass hole sets more
Individual and multiple liquid pass holes are to be uniformly distributed circumferentially on joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710841648.5A CN107387138A (en) | 2017-09-18 | 2017-09-18 | The core assembly of hydraulic control one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710841648.5A CN107387138A (en) | 2017-09-18 | 2017-09-18 | The core assembly of hydraulic control one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107387138A true CN107387138A (en) | 2017-11-24 |
Family
ID=60350061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710841648.5A Withdrawn CN107387138A (en) | 2017-09-18 | 2017-09-18 | The core assembly of hydraulic control one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107387138A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056385A (en) * | 2019-06-04 | 2019-07-26 | 巨隆集团芜湖兴隆液压有限公司 | Core assembly and reversal valve with it |
| CN111336148A (en) * | 2020-03-24 | 2020-06-26 | 北京天地玛珂电液控制系统有限公司 | Valve sleeve, valve core assembly and reversing valve |
| CN112283571A (en) * | 2020-11-16 | 2021-01-29 | 常州艾肯智造科技有限公司 | Float ball type drain valve rod and double-valve core assembly |
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| DE19749275A1 (en) * | 1997-11-07 | 1999-05-12 | Vos Richard Grubenausbau Gmbh | Controlled feed pistol for setting hydraulic props |
| CN2463629Y (en) * | 2001-01-19 | 2001-12-05 | 温州市基安机械有限公司 | Large flow liquid-control one-way valve |
| CN1828019A (en) * | 2006-04-07 | 2006-09-06 | 郑州恒达液压工程中心 | Two-stage unloading pilot-controlled check valve for hydraulic support pole |
| CN202073574U (en) * | 2011-04-08 | 2011-12-14 | 巨隆集团芜湖兴隆液压有限公司 | Insertion-type large-flow rigidly-sealed hydraulic control one-way valve for upright post |
| 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 |
| CN205990923U (en) * | 2016-05-13 | 2017-03-01 | 鑫矿液压科技有限公司 | Hydraulic control one-way valve |
| CN206478049U (en) * | 2016-10-26 | 2017-09-08 | 华东矿用设备有限公司 | A kind of hydraulic system hydraulic control one-way valve |
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2017
- 2017-09-18 CN CN201710841648.5A patent/CN107387138A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19749275A1 (en) * | 1997-11-07 | 1999-05-12 | Vos Richard Grubenausbau Gmbh | Controlled feed pistol for setting hydraulic props |
| CN2463629Y (en) * | 2001-01-19 | 2001-12-05 | 温州市基安机械有限公司 | Large flow liquid-control one-way valve |
| CN1828019A (en) * | 2006-04-07 | 2006-09-06 | 郑州恒达液压工程中心 | Two-stage unloading pilot-controlled check valve for hydraulic support pole |
| CN202073574U (en) * | 2011-04-08 | 2011-12-14 | 巨隆集团芜湖兴隆液压有限公司 | Insertion-type large-flow rigidly-sealed hydraulic control one-way valve for upright post |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056385A (en) * | 2019-06-04 | 2019-07-26 | 巨隆集团芜湖兴隆液压有限公司 | Core assembly and reversal valve with it |
| CN110056385B (en) * | 2019-06-04 | 2024-03-22 | 巨隆集团芜湖兴隆液压有限公司 | Valve core assembly and reversing valve with same |
| CN111336148A (en) * | 2020-03-24 | 2020-06-26 | 北京天地玛珂电液控制系统有限公司 | Valve sleeve, valve core assembly and reversing valve |
| CN112283571A (en) * | 2020-11-16 | 2021-01-29 | 常州艾肯智造科技有限公司 | Float ball type drain valve rod and double-valve core assembly |
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Application publication date: 20171124 |
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