CN107676118A - The valve pocket of column pilot operated check valve - Google Patents
The valve pocket of column pilot operated check valve Download PDFInfo
- Publication number
- CN107676118A CN107676118A CN201710870658.1A CN201710870658A CN107676118A CN 107676118 A CN107676118 A CN 107676118A CN 201710870658 A CN201710870658 A CN 201710870658A CN 107676118 A CN107676118 A CN 107676118A
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- China
- Prior art keywords
- valve
- opening
- pilot operated
- operated check
- check valve
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- 239000007788 liquid Substances 0.000 claims abstract description 96
- 238000003780 insertion Methods 0.000 description 10
- 230000037431 insertion Effects 0.000 description 10
- 238000007789 sealing Methods 0.000 description 10
- 239000012530 fluid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 230000001154 acute effect Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011122 softwood 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of valve pocket of column pilot operated check valve, including conduction part, conduction part have allow liquid by and for the inside of column pilot operated check valve is kept connected state with upright post jack drainage trough and central channel, drainage trough is circumferentially arranged multiple in conduction part, and drainage trough is centrally located the surrounding of groove and drainage trough connects with central channel.The valve pocket of column pilot operated check valve of the present invention, by setting central channel to be engaged with drainage trough, be advantageous to the quick flowing that liquid realizes the short time, so as to improve flow quantity, and turbulent flow can be prevented so that column pilot operated check valve is directly installed on upright post jack and is possibly realized.
Description
Technical field
The invention belongs to coal mine fully-mechanized mining hydraulic support, and specifically, the present invention relates to a kind of column pilot operated check valve
Valve pocket.
Background technology
Since coal mine fully-mechanized mining starts, due to the difference of various coal mining environment, have to hydraulic support and supporting equipment
Tightened up requirement.Coal mining cause is stepping up in recent years, and the application of large-scale support is more and more extensive, large-scale branch
There is an urgent need to the column pilot operated check valve of the big dependable performance of flow for frame to control lifting.However, existing column pilot operated check valve
Housing configuration design it is unreasonable, at valve pocket cross flow quantity it is small, column pilot operated check valve need to be arranged on column by valve fishplate bar
On jack, column pilot operated check valve can not be directly installed on upright post jack, cause the installation of column pilot operated check valve to need
Take larger space.
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 stand
The valve pocket of post hydraulic control one-way valve, it is therefore an objective to improved flow quantity.
To achieve these goals, the technical scheme taken of the present invention is：The valve pocket of column pilot operated check valve, including drainage
Portion, conduction part, which has, allows liquid by and for making the inside of column pilot operated check valve keep connected state with upright post jack
Drainage trough and central channel, drainage trough is circumferentially arranged multiple in conduction part, and drainage trough is centrally located the surrounding of groove and drainage
Groove connects with central channel.
Multiple drainage troughs are to be uniformly distributed circumferentially in the conduction part.
The drainage trough is arc-shaped slot, and the axis of drainage trough and the axis of the conduction part are spatially perpendicular.
The drainage trough sets four.
The central channel is the circular groove set at the end face center of the conduction part.
The valve pocket of column pilot operated check valve of the present invention, by setting central channel to be engaged with drainage trough, be advantageous to liquid reality
The quick flowing of existing short time, so as to improve flow quantity, and can prevent turbulent flow so that column pilot operated check valve is directly pacified
It is possibly realized on upright post jack.
Brief description of the drawings
This specification includes the following drawings, and shown content is respectively：
Fig. 1 is the sectional view of the column pilot operated check valve with valve pocket 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 valve pocket side end structural representation；
Fig. 8 is the sectional view of swivel nut；
Fig. 9 is the use state diagram of column pilot operated check 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 first 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 second liquid pass hole；402nd, connecting portion；403rd, the first guide part；404th, the second guide part；405th, draw
Stream portion；406th, drainage trough；407th, central channel；
5th, swivel nut；501st, the 3rd 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, big valve core；8th, small valve core；9th, valve seat；10th, the first spring；11st, second spring.
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.
It is a kind of column pilot operated check valve as shown in Figures 1 to 9, it includes valve body 2, swivel nut 5, the valve pocket 4 of the present invention, top
Bar, the first spring 10, second spring 11, the big valve core 7 being arranged inside valve pocket 4 and small valve core 8, it is sheathed on push rod and is located at
Feed liquor between swivel nut 5 and valve pocket 4 covers 3 and is arranged at the inside of feed liquor set 3 and is sealed for being engaged realization with big valve core 7
Valve seat 9.Valve pocket 4, big valve core 7, small valve core 8, feed liquor set 3, swivel nut 5, valve seat 9, the first spring 10 and second spring 11 are formed
The core assembly of plug-in, core assembly are structure as a whole, and swivel nut 5 and feed liquor set 3 are sheathed on push rod, big valve core 7 and small valve
Core 8 is arranged at the inside of valve pocket 4, and push rod is used to apply big valve core 7 and small valve core 8 pressure vertically, and push rod can promote
Big valve core 7 and small valve core 8 move towards the inside of valve pocket 4, big valve core 7 is separated with valve seat 9, realize the unlatching of safety valve.Spiral shell
Set 5 is with valve body 2 to be threadedly coupled, and feed liquor set 3 is clipped between swivel nut 5 and valve pocket 4 and feed liquor set 3 is fixed with swivel nut 5 and valve pocket 4 and connected
Connect, valve pocket 4 is used in the axial direction play big valve core 7 and small valve core 8 position-limiting action, and swivel nut 5 is used to play limit to push rod in the axial direction
Position effect, swivel nut 5 and valve body 2 simultaneously are used to be connected with the upright post jack of outside.Upright post jack is a kind of single-piston rod hydraulic pressure
Cylinder, upright post jack can extend and shrink.When upright post jack is extended, to carry out setting prop action.Upright post jack enters
When row shrinks, drop post action.
Specifically, as shown in Figure 1 to Figure 3, the inside of valve body 2 has the valve pocket for accommodating core assembly, and valve pocket is in valve
One end end face of body 2 extends the circular cavity to be formed initially towards the inside of valve body 2, and core assembly integrally inserts the valve of valve body 2
In chamber and swivel nut 5 and valve body 2 is are threadedly coupled, and realize fixation of the core assembly on valve body 2.Valve pocket is at one end end of valve body 2
An opening is formed on face and sets the opening as the first opening 202, core assembly is inserted in valve pocket at the first opening 202, valve
Be threadedly coupled in core assembly insertion valve pocket and with valve body 2, core assembly is arranged to be threadedly coupled with valve body 2, easy disassembly with
Safeguard.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
Logical, the first opening 202 and second is open 203 to be oppositely arranged, and valve body 2 is stood at the second opening 203 by oil pipe and outside
Post jack connects, and is flowed into the liquid in valve pocket by the second opening 203 in upright post jack, the liquid in upright post jack
Body is flowed into valve pocket by the second opening 203.
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 allowing liquid to pass through, the 3rd opening 204 is as the 3rd working hole PA for allowing liquid to pass through, the 4th opening 205
As the 4th working hole PA for allowing liquid to pass through, the 5th opening 206 is opened as the 5th working hole A1 for allowing liquid to pass through, the 6th
Mouthfuls 207 are used as the 6th working hole A2 for allowing liquid to pass through, and the 7th is open 208 as the 7th working hole PB for allowing liquid to pass through, the
Eight openings 209 as the 8th working hole PB for allowing liquid to pass through, swivel nut 5 allows the first working hole that liquid passes through provided with one
B, swivel nut 5 are to be connected at the first working hole B by oil pipe with the upright post jack of outside.
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, the openings of the first working hole B and second 203 are used for vertical with outside
Post jack connects.4th 205 (i.e. the 4th working hole PA) of opening and the 8th 209 (i.e. the 8th working hole PB) of opening can be used
In the column pilot operated check valve of adjoining frame, the 4th opening 205 is connected with the 3rd opening 204 of the column pilot operated check valve of adjacent frame,
8th opening 209 is connected with the 7th opening 208 of the column pilot operated check valve of adjacent frame, i.e., when two column pilot operated check valves are connected
Connect the 4th opening 205 and the 3rd opening of another column pilot operated check valve in use, one of column pilot operated check valve
204 connections, the 8th opening 209 of one of column pilot operated check valve and the 7th opening of another column pilot operated check valve
208 connections.5th 206 (i.e. the 5th working hole A1) of opening and the 6th, 207 (i.e. the 6th working hole A2) that are open can be used for and outside
To meet other desired needs, the 5th opening 206 and the 6th is open for safety valve, pressure gauge or the pressure sensor connection in portion
207 can also use chock to be blocked when need not using, i.e., the 5th opening 206 and the 6th opening 207 can be closed,
Fluid can not pass through after closing.
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
It is parallel and with the axis perpendicular of the valve pocket of valve body 2, the 3rd opening the 204, the 5th opening 206 and the 7th opening 208 and and valve pocket
It is connected, 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
On straight line and the 3rd opening 204 and positioned at the 5th opening 206 and the 7th opening 208 between.The opening 207 of 4th opening the 205, the 6th
It is the circular holes that extend from the 4th end face of valve body 2 initially towards the inside of valve body 2 with the 8th opening 209, the 4th opening 205, the
The axis of six openings 207 and the 8th opening 209 it is parallel and with the axis perpendicular of the valve pocket of valve body 2, the 4th opening 205, the
Six openings 207 and the 8th opening 209 are connected with valve pocket, the opening 207 of the 4th opening the 205, the 6th and the 8th opening 209 in
On the parallel same straight line of the width of valve body 2 and the 4th opening 205 positioned at the 8th opening 209 and the 6th opening 207 it
Between, the 3rd opening 204 and the 4th opening 205 are on the same straight line parallel with the width of valve body 2, the 5th opening
206 and the 6th are open 207 on the same straight line parallel with the width of valve body 2, the 7th opening 208 and the 8th opening
209 on the same straight line parallel with the width of valve body 2.Second opening 203 is since the second end face of valve body 2
The circular hole extended towards the inside of valve body 2, the first opening 202 are arranged in the first end face of valve body 2, the first opening 202, second
Opening 203 and valve pocket for be coaxially disposed and valve pocket positioned at first opening 202 and second opening 203 between.
As shown in Figure 1 to Figure 3, core assembly insertion valve pocket in after, second opening 203 positioned at core assembly axial direction on and
Second opening 203 be located at valve pocket 4 side, the 3rd opening 204 and the 4th opening 205 positioned at feed liquor set 3 radially and the 3rd
The opening 205 of opening 204 and the 4th is 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 9 is arranged at the inside of feed liquor set 3, and valve seat 9 is in the axial direction by feed liquor set 3 and valve pocket 4
It is fixedly clamped.Valve seat 9 is cirque structure valve seat 9 and feed liquor set 3 and valve pocket 4 are to be coaxially disposed, and is had at the inside center of valve seat 9
There is the centre bore for accommodating big valve core 7, the diameter of the centre bore of valve seat 9 is less than the overall diameter of big valve core 7.Big valve core 7 and valve seat 9 are equal
It is made of metal material, big valve core 7 is identical with the material of valve seat 9, and the hardness of valve seat 9 is less than the hardness of big valve core 7, big valve core
7 are tightly connected with valve seat 9 to be hard, enhance sealing property.Big valve core 7 and valve seat 9 are made of metal material, and to be used true
Air quenching ignition technique, refined again after quenching, hardness is high, hard to seal not only good seal performance relative to the sealing of softwood matter, moreover it is possible to
Resistance to super-pressure, the service life length of column pilot operated check valve.The sealed end of big valve core 7 is frustum structure, the sealing surface of big valve core 7
For the conical surface, the sealed end of big valve core 7 stretches into the centre bore of valve seat 9 and be in contact with valve seat 9 realization sealing, push rod and big valve core
7 start to contact at valve seat 9, and the structure of big valve core 7 is simpler, the overall more compact structure of column pilot operated check valve.In addition,
Small valve core 8 is also made of metal material, and valve seat 9, big valve core 7 are identical with the material of small valve core 8.
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 7 and small valve core 8, with when check valve is opened
The inside of big valve core 7 and small valve core 8 towards valve pocket 4 is promoted to move.Piston 602 is located at the inside of swivel nut 5, swivel nut 5 and enters
Liquid set 3 is engaged, for playing position-limiting action to piston 602 in the axial direction.Push rod body 601 inserts feed liquor set 3 and swivel nut 5
Inside, the diameter of the centre bore of valve seat 9 are more than the diameter of push rod body 601 so that push rod body 601 is inserted into valve seat 9
In centre bore, to be contacted with big valve core 7 and small valve core 8.First spring 10, which is used to apply push rod, makes it axially towards remote
The active force that the direction of big valve core 7 and small valve core 8 moves, the first spring 10 is sheathed on push rod body 601 and the first bullet
Spring 10 is clipped between piston 602 and feed liquor set 3, and one end of the first spring 10 is against on the inwall of feed liquor set 3, and the other end is against work
On plug 602, the first spring 10 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 during feed liquor covers 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 and valve pocket 4 are spiral shell
Line connects, and the end of feed liquor set 3 is 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 pass through
The first liquid pass hole 301, the first liquid pass hole 301 on feed liquor set 3 to be obliquely installed, the axis and feed liquor of the first liquid pass hole 301
There is angle between the axis of set 3 and the angle is acute angle.First liquid pass hole 301 is through setting in the side wall of feed liquor set 3
Circular hole, the first liquid pass hole 301 is evenly distributed multiple, the first liquid pass hole 301 and feed liquor set 3 in the side wall of feed liquor set 3
Hollow cavity connect and all first liquid pass holes 301 be distributed in around hollow cavity, the first liquid pass hole 301 and with valve body 2
The 3rd opening 204 205 be connected with the 4th opening.First liquid pass hole 301 is the valve towards outside in the side wall of feed liquor set 3
9 positions of seat tilt extension, and the axis that the axis of the first liquid pass hole 301 and feed liquor cover 3 intersects and angle between the two is small
In 90 degree.First liquid pass hole 301 is designed using inclined hole so that liquid is more smooth by being flowed during the first liquid pass hole 301, resistance damage
Mistake 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 first
Second accommodating cavity 304 of spring 10 and push rod body 601, the 3rd accommodating cavity 305 and the 4th accommodating cavity for accommodating push rod body 601
306 and the 5th accommodating cavity 307 of valve seat 9 is accommodated, the first accommodating cavity 303, the second accommodating cavity 304, the 3rd accommodating cavity 305, the
Four accommodating cavities 306 and the 5th accommodating cavity 307 are to be sequentially arranged along the axial direction of feed liquor set 3, the first accommodating cavity 303, the second accommodating cavity
304th, 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, second
Accommodating cavity 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 be more than the diameter of the second accommodating cavity 304, the diameter of the second accommodating cavity 304 is more than the diameter of the 3rd accommodating cavity 305, the 4th
The diameter of 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 is inserted in the first accommodating cavity 303
And be fixedly connected 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 in spiral shell
The inside of set 5 moves.First accommodating cavity 303, the second accommodating cavity 304, the 3rd accommodating cavity 305, the 4th accommodating cavity 306 and
Five accommodating cavities 307 form the hollow cavity of feed liquor set 3, and the first accommodating cavity 303 and the 5th accommodating cavity 307 are respectively in feed liquor set 3
Opening is formed on the end face of both ends, the overall diameter of valve seat 9 is equal with the diameter of the 5th accommodating cavity 307, and valve seat 9 is placed in the 5th appearance
Put in chamber 307 and valve seat 9 is engaged with feed liquor set 3 by valve pocket 4 and is fixedly clamped.First liquid pass hole 301 holds with the 4th of feed liquor set 3
Put chamber 306 to connect, and all first liquid pass holes 301 are distributed in around the 4th accommodating cavity 306, the 4th accommodating cavity 306 and with
The centre bore connection of valve seat 9.
As shown in Figure 1, Figure 2 with shown in Fig. 8, swivel nut 5 is both ends open and the cylinder of inner hollow, and swivel nut 5 is inserted in valve body 2
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 is used
It is connected in the upright post jack with outside, is flowed into the fluid in column pilot operated check valve by swivel nut 5 in upright post jack,
Fluid in upright 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,
The other end of swivel nut 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 feed liquor set 3 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 are from swivel nut 5
External part end face start along swivel nut 5 be axially facing swivel nut 5 inside extend circular hole, one end of swivel nut 5 is external part
And the external part is located at the outside of valve body 2, the other end of feed liquor set 3 is inserted in the valve pocket of valve body 2 for insertion end and the insertion end.
The diameter of 6th accommodating cavity 503 is identical with the overall diameter size of piston 602, and the diameter of the first working hole 502 is less than the 6th and housed
The diameter of chamber 503, the first working hole 502 connect with the 6th accommodating cavity 503.6th accommodating cavity 503 is the inside for being arranged at swivel nut 5
Circular cavity, the 6th accommodating cavity 503 for since the end face of the insertion end of swivel nut 5 along feed liquor set 3 be axially facing feed liquor set 3
Inside extend the cavity to be formed, the 6th accommodating cavity 503 and the first working hole 502 are coaxial.Being additionally provided with swivel nut 5 allows liquid to pass through
The 3rd liquid pass hole 501, the 3rd liquid pass hole 501 on swivel nut 5 to be obliquely installed, axis and the swivel nut 5 of the 3rd liquid pass hole 501
There is angle between axis and the angle is acute angle.3rd liquid pass hole 501 is to run through the circular hole set in the side wall of swivel nut 5,
3rd liquid pass hole 501 sets multiple and multiple 3rd liquid pass holes 501 to be uniformly distributed circumferentially in the side wall of swivel nut 5, multiple
3rd liquid pass hole 501 is distributed in the surrounding of the first working hole 502 and the first working hole 502 is connected with the 3rd liquid pass hole 501, the
Three liquid pass holes 501 are simultaneously connected with the 7th opening 208 on valve body 2 and the 8th opening 209.3rd liquid pass hole 501 is in swivel nut 5
Interior tilts extension, and the axis of the 3rd liquid pass hole 501 intersects with the axis of swivel nut 5 and angle between the two is less than 90
Degree.3rd liquid pass hole 501 is designed using inclined hole so that liquid is more smooth by being flowed during three liquid pass holes 501, and drag losses is more
It is small, and be easier to process.The axis of the first liquid pass hole 301 on same axial direction and the axis of the 3rd liquid pass hole 501 it
Between there is angle and the angle to be also acute angle, the axis and the 3rd liquid pass hole 501 of the first liquid pass hole 301 on same axial direction
V-shaped arrangement.
As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 8, 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 column pilot operated check valve is connected through a screw thread with swivel nut 5, and feed liquor set 3 and spiral shell in column pilot operated check valve
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. 8, 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 end of the first accommodating cavity of insertion 303 of swivel nut 5
On the periphery in portion, 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, spiral shell
In another part insertion lock groove 504 of nail 1, so as to which screw 1 can play position-limiting action to swivel nut 5 in the axial direction so that enter
Liquid 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 the energy of swivel nut 5
It is enough to be rotated relative to feed liquor set 3, can when dismantling when in the valve pocket that core assembly is arranged on valve body 2 or from valve pocket
Rotation swivel nut 5 and make in the rotary course of swivel nut 5 feed liquor set 3 remain to swivel nut 5 keep connection status, feed liquor set 3 with swivel nut 5 it
Between will not separate.And due to being provided with the O-ring seal of quality of rubber materials between feed liquor set 3 and valve body, sealing ring be clipped in into
Liquid set 3 and the internal face of valve body between, sealing ring and feed liquor set 3 and valve body between frictional force be present, so swivel nut 5 relative to
When valve body 2 rotates, the presence of sealing ring causes relatively unrotatable between feed liquor set 3 and valve pocket 4 and valve body 2, and then also can
To avoid relatively rotating between feed liquor set 3 and valve pocket 4, feed liquor set 3 and valve pocket 4 is avoided to separate.
As shown in Figure 1, Figure 2 with shown in Fig. 6, valve pocket 4 of the invention is provided with and allows the second liquid pass hole 401 that liquid passes through, and second
Liquid pass hole 401 has angle to be obliquely installed, between the axis of the second liquid pass hole 401 and the axis of valve pocket 4 on valve pocket 4 and should
Angle is acute angle.Second liquid pass hole 401 is, through the circular hole set, the second liquid pass hole 401 sets multiple in the side wall of valve pocket 4
And multiple second liquid pass holes 401 is are uniformly distributed circumferentially in the side wall of valve pocket 4, multiple second liquid pass holes 401 are distributed in greatly
The surrounding of valve element 7 and the second liquid pass hole 401 can connect with the hollow cavity of valve pocket 4, the second liquid pass hole 401 and with valve body 2
5th opening 206 is connected with the 6th opening 207.Second liquid pass hole 401 tilts extension, the second mistake in the interior of valve pocket 4
The axis of fluid apertures 401 intersects with the axis of valve pocket 4 and angle between the two is less than 90 degree.Second liquid pass hole 401 uses inclined hole
Design so that liquid is more smooth by being flowed during the second liquid pass hole 401, and drag losses is smaller, and is easier to process.In same
There is angle between the axis of the first liquid pass hole 301 on one axial direction and the axis of the second liquid pass hole 401 and the angle is also to be sharp
Angle, the 401 V-shaped arrangement of axis and the second liquid pass hole of the first liquid pass hole 301 on same axial direction.
As shown in Figure 1, Figure 2, shown in Fig. 6 and Fig. 7, valve pocket 4 of the invention includes being used to guide liquid to the inside of valve body 2
Conduction part 405, conduction part 405 has the drainage trough 406 for allowing liquid to pass through and drainage trough 406 is circumferentially set in conduction part 405
Put multiple, drainage trough 406 causes the valve pocket of the second working hole and valve body 2 to keep connected state, namely drainage trough 406 to cause valve body
2 inside and the cavity of resorption of upright post jack keep the epicoele holding connected state of connected state, the first working hole B and upright post jack
State, drainage trough 406 simultaneously cause the second opening 203 and the 5th opening 206 and the 6th opening 207 to keep connected state.Column hydraulic control
After check valve is opened, big valve core 7 is separated with valve seat 9, and liquid is flowed into column pilot operated check valve through the 4th opening 205, is flowed into vertical
Liquid in post hydraulic control one-way valve flows into the second opening through the first liquid pass hole 301, the second liquid pass hole 401 and drainage trough 406 successively
In 203, liquid is eventually entered into the cavity of resorption of upright post jack, realizes the setting prop action of upright post jack.In liquid flow process
In, drainage trough 406 will be guided into the second opening 203 from the liquid in the valve pocket for entering valve body 2, is advantageous to liquid and is realized in short-term
Between quick flowing, so as to improve flow quantity, so cause check valve be directly installed on the cavity of resorption of upright post jack into
For possibility.Opposite, when upright post jack carries out drop post, the liquid in the cavity of resorption of upright post jack is through the stream of the second opening 203
Enter in column pilot operated check valve, drainage trough 406 guides the liquid entered in the second opening 203 into the valve pocket of valve body 2.
As shown in Figure 1, Figure 2, shown in Fig. 6 and Fig. 7, conduction part 405 is cylinder, and the diameter of conduction part 405 is more than the second opening
203 diameter, drainage trough 406 are to start to extend shape radially toward the inside of conduction part 405 on the periphery of conduction part 405
Into groove, multiple drainage troughs 406 are in conduction part 405 to be uniformly distributed circumferentially.As preferable, drainage trough 406 is circle
Deep-slotted chip breaker, the axis of drainage trough 406 and the axis of conduction part 405 are spatially perpendicular.Drainage trough 406 is in conduction part 405
Formed and be open on periphery, the inner bottom surface at drainage trough 406 is the arc surface relative with opening, and the drainage trough 406 of circular arc is right
The guiding effect of liquid is more preferable and easy to process.In the present embodiment, drainage trough 406 sets four altogether.
As shown in Figure 1, Figure 2, shown in Fig. 6 and Fig. 7, valve pocket 4 of the invention also includes connecting portion 402, the use being connected with feed liquor set 3
In the first guide part 403 being play the guiding role to big valve core 7 and the second guide part 404 for being play the guiding role to small valve core 8,
Connecting portion 402, the first guide part 403, the second guide part 404 and conduction part 405 is set gradually and successively along the axial direction of valve pocket 4
Being fixedly connected, i.e., valve pocket 4 is formed by connecting by connecting portion 402, the first guide part 403, the second guide part 404 and conduction part 405,
Connecting portion 402, the first guide part 403 and the second guide part 404 are cirque structure, connecting portion 402, the first guide part 403,
To be coaxially disposed, the overall diameter of connecting portion 402 is more than the outer straight of the first guide part 403 for second guide part 404 and conduction part 405
Footpath, the interior diameter of connecting portion 402 are more than the interior diameter of the first guide part 403.In the centre bore of the insertion connecting portion 402 of feed liquor set 3
And with connecting portion 402 be threadedly coupled, the internal face of connecting portion 402 is provided with internal thread, the interior diameter of connecting portion 402 as in
The diameter in heart hole.Big valve core 7 is inserted in the centre bore of the first guide part 403, the overall diameter of big valve core 7 and the first guide part 403
Centre bore diameter it is equal, the interior diameter of the first guide part 403 is the diameter of centre bore.First guide part 403
The overall diameter of overall diameter and the second guide part 404 is equal in magnitude, and the interior diameter of the first guide part 403 is more than the second guide part 404
Interior diameter, spacing work is played to big valve core 7 in the axial direction so as to being formed between the first guide part 403 and the second guide part 404
Limited step.Small valve core 8 is inserted in the centre bore of the second guide part 404, the overall diameter of small valve core 8 and the second guide part
The diameter of 404 centre bore is equal, and the interior diameter of the second guide part 404 is the diameter of centre bore.Big valve core 7 is annulus
Shape structure, small valve core 8 are inserted in the centre bore of big valve core 7 and the centre bore of the second guide part 404, small valve core 8 and the phase of big valve core 7
Coordinate realization sealing and small valve core 8 and big valve core 7 are tightly connected to be hard, the good sealing effect after closed check valve, reliability height.
Second spring 11, which is used to apply small valve core 8, makes it axially towards the active force moved close to the direction of push rod, and leads to
Crossing small valve core 8 promotes big valve core 7 towards movement at valve seat 9 until contacting realization sealing with valve seat 9, and second spring 11 is located at second
In the centre bore of guide part 404 and second spring 11 is clipped between the internal face and small valve core 8 of the second guide part 404, the second bullet
One end of spring 11 is against on the internal face of 404 sets of the second guide part, and the other end is against on small valve core 8, and second spring 11 is cylinder
Helical spring.
As shown in Figure 1, Figure 2, shown in Fig. 6 and Fig. 7, the overall diameter of conduction part 405 is more than the overall diameter of the second guide part 404 and small
In the overall diameter of connecting portion 402, the overall diameter of connecting portion 402 is equal with the diameter of the valve pocket of valve body 2, conduction part 405
One end is fixedly connected with one end of the second guide part 404, the end face of the other end of conduction part 405 and the inwall of the valve pocket of valve body 2
Face is bonded and the end end face faces the second opening 203, and drainage trough 406 and being respectively formed in the both ends end face of conduction part 405 allows
The opening that liquid passes through, i.e. drainage trough 406 are another along axially being extended to from one end end face of conduction part 405 for conduction part 405
End face is held, drainage trough 406 is through setting in conduction part 405.As preferable, conduction part 405 is provided with and drainage trough 406
The central channel 407 of connection, central channel 407 are recessed for what is set at the end face center for facing the second opening 203 of conduction part 405
Groove, all drainage troughs 406 are centrally located the surrounding of groove 407 and connected with central channel 407, and central channel 407 is preferably circular recessed
Groove, central channel 407 are to be coaxially disposed and connected at center with the second opening 203, the diameter of central channel 407 with the second opening 203
Less than the diameter of the second opening 203, central channel 407 causes the second opening 203 to be in connected state with all drainage troughs 406.In
The setting of heart groove 407, aggtegation can be played to the liquid flowed out from drainage trough 406, and can be to being flowed from the second opening 203
Liquid to drainage trough 406 plays shunting action, and central channel 407 is engaged with drainage trough 406, is advantageous to liquid and is realized the short time
Quick flowing, so as to improve flow quantity, and turbulent flow can be prevented.
As depicted in figs. 1 and 2, the overall diameter of conduction part is less than the diameter of the valve pocket of valve body and is open more than second straight
Footpath, valve pocket is as the part positioned at the end of core assembly, and when core assembly is fitted into valve pocket, the conduction part of valve pocket is first
Insert in valve pocket, therefore the diameter of conduction part is set smaller than to the diameter of valve pocket, be easy in core assembly insertion valve pocket, improve
The installation effectiveness of core assembly.As preferable, the overall diameter of conduction part is 37mm, a diameter of 38mm of valve pocket.Conduction part
Diameter is less than the diameter of valve pocket, gap between conduction part and the internal face of valve body be present, the periphery of conduction part and valve body it is interior
Wall does not contact, and reduces the contact area of valve pocket and valve body, so as to facilitate the assembling of core assembly and valve body, also avoids
Make to occur between valve pocket and feed liquor set because the frictional resistance between valve pocket and valve body is excessive when core assembly and valve body are dismantled
Situation about being finally recovered is rotated against and causes to occur.
As shown in Fig. 1, Fig. 3 and Fig. 9, in use, column pilot operated check valve and upright post jack and three position four-way directional control valve
Connection, the 3rd working hole (i.e. working hole PA in Fig. 9) of column pilot operated check valve and the 7th working hole (i.e. work in Fig. 9
Mouth PB) it is connected with three position four-way directional control valve, the first working hole (i.e. working hole B in Fig. 9) of column pilot operated check valve and second
Working hole (i.e. working hole A in Fig. 9) is connected with upright post jack, and the first working hole simultaneously connects with the rod chamber of upright post jack
Connect, the second working hole is simultaneously connected with the rodless cavity of upright post jack, and the 4th working hole of column pilot operated check valve is (i.e. in Fig. 9
Working hole PA) and the 8th working hole (i.e. working hole PB in Fig. 9) and the column pilot operated check valve for connecing other adjacent frame, column liquid
Control check valve the 5th working hole (i.e. working hole A1 in Fig. 9) and the 6th working hole (i.e. working hole A2 in Fig. 9) for
Outside safety valve, pressure gauge or pressure sensor is 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 3rd working hole of column pilot operated check valve, fluid enters column pilot operated check valve, column liquid
Control check valve to open, high-voltage oil liquid enters the cavity of resorption (i.e. rodless cavity) of upright post jack through column pilot operated check valve, with high pressure
The entrance of fluid 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 stops the 3rd working hole feed flow to column pilot operated check valve, the core assembly of column pilot operated check valve by
Spring effect in inside resets to form 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, makes the 7th working hole of column pilot operated check valve open, and fluid enters column pilot operated check valve, into standing
Fluid in post hydraulic control one-way valve promotes the push rod movement of core assembly, and then big valve core 7 is separated with valve seat 9, opens locking
Chamber, while fluid enters the epicoele (i.e. rod chamber) of upright post jack by the first working hole, in the cavity of resorption of upright post jack
High-voltage oil liquid is reversely flowed into column pilot operated check valve, and flows into three position four-way directional control valve by the 3rd working hole, is eventually entered into
Major loop, now upright post jack decline, when upright post jack drops to desired height, three position four-way directional control valve stops to vertical
7th working hole feed flow of post hydraulic control one-way valve, two core assemblies of column pilot operated check valve are answered due to the spring effect of inside
Position forms locking states, and now upright post jack recovers 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 (5)
1. the valve pocket of column pilot operated check valve, it is characterised in that：Including conduction part, conduction part have allow liquid by and for making
The inside of column pilot operated check valve keeps the drainage trough and central channel of connected state with upright post jack, and drainage trough is in conduction part
Circumferentially arranged multiple, drainage trough is centrally located the surrounding of groove and drainage trough connects with central channel.
2. the valve pocket of column pilot operated check valve according to claim 1, it is characterised in that：Multiple drainage troughs are described
It is to be uniformly distributed circumferentially in conduction part.
3. the valve pocket of column pilot operated check valve according to claim 1 or 2, it is characterised in that：The drainage trough is circular arc
Shape groove, the axis of drainage trough and the axis of the conduction part are spatially perpendicular.
4. the valve pocket of column pilot operated check valve according to any one of claims 1 to 3, it is characterised in that：The drainage trough is set
Put four.
5. the valve pocket of column pilot operated check valve according to any one of claims 1 to 4, it is characterised in that：The central channel is
The circular groove set at the end face center of the conduction part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710870658.1A CN107676118A (en) | 2017-09-23 | 2017-09-23 | The valve pocket of column pilot operated check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710870658.1A CN107676118A (en) | 2017-09-23 | 2017-09-23 | The valve pocket of column pilot operated check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107676118A true CN107676118A (en) | 2018-02-09 |
Family
ID=61137141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710870658.1A Withdrawn CN107676118A (en) | 2017-09-23 | 2017-09-23 | The valve pocket of column pilot operated check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107676118A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237279A (en) * | 2020-03-24 | 2020-06-05 | 北京天地玛珂电液控制***有限公司 | Valve element assembly, hydraulic control one-way valve and valve sleeve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1687793A1 (en) * | 1989-03-20 | 1991-10-30 | Государственный проектно-конструкторский и экспериментальный институт угольного машиностроения "Гипроуглемаш" | Control unit for powered support section |
| JPH11159288A (en) * | 1997-11-25 | 1999-06-15 | Yachiyo Koken:Kk | Cut-off device in two process propulsive method |
| CN202064971U (en) * | 2011-05-09 | 2011-12-07 | 巨隆集团芜湖兴隆液压有限公司 | Plug-in medium flow column pilot operated check valve |
| CN202832580U (en) * | 2012-09-13 | 2013-03-27 | 巨隆集团芜湖兴隆液压有限公司 | Middle-flow hydraulic control one-way valve |
| CN203488786U (en) * | 2013-08-26 | 2014-03-19 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Multiway valve body |
-
2017
- 2017-09-23 CN CN201710870658.1A patent/CN107676118A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1687793A1 (en) * | 1989-03-20 | 1991-10-30 | Государственный проектно-конструкторский и экспериментальный институт угольного машиностроения "Гипроуглемаш" | Control unit for powered support section |
| JPH11159288A (en) * | 1997-11-25 | 1999-06-15 | Yachiyo Koken:Kk | Cut-off device in two process propulsive method |
| CN202064971U (en) * | 2011-05-09 | 2011-12-07 | 巨隆集团芜湖兴隆液压有限公司 | Plug-in medium flow column pilot operated check valve |
| CN202832580U (en) * | 2012-09-13 | 2013-03-27 | 巨隆集团芜湖兴隆液压有限公司 | Middle-flow hydraulic control one-way valve |
| CN203488786U (en) * | 2013-08-26 | 2014-03-19 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Multiway valve body |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237279A (en) * | 2020-03-24 | 2020-06-05 | 北京天地玛珂电液控制***有限公司 | Valve element assembly, hydraulic control one-way valve and valve sleeve |
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Application publication date: 20180209 |
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