CN208074174U - A kind of industrial pipeline valve - Google Patents
A kind of industrial pipeline valve Download PDFInfo
- Publication number
- CN208074174U CN208074174U CN201820521717.4U CN201820521717U CN208074174U CN 208074174 U CN208074174 U CN 208074174U CN 201820521717 U CN201820521717 U CN 201820521717U CN 208074174 U CN208074174 U CN 208074174U
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- Prior art keywords
- valve
- pipe
- valve seat
- spool
- input port
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Abstract
The utility model discloses a kind of industrial pipeline valves, including horizontal valve pipe and slanting set valve pipe, horizontal valve pipe includes input port flange, input port flange is connect with slanting set valve pipe, it is provided with valve seat in the endoporus of input port flange, it is provided with spool and valve rod in slanting set valve pipe, the right side of valve seat protrudes from the right side of input port flange, the left end of valve seat is provided with to compress the pressing sleeve of valve seat of valve seat, the diameter of bore of valve seat and pressing sleeve of valve seat is equal and constitutes intake antrum, spool is wedge shape valve core, the left side of wedge shape valve core is perpendicular, the pressing surface of spool and valve seat mutually pushed is consistent with gravity direction, so that medium flow direction is constant always.The utility model absorbs the advantages of durable gate valve big flow, cut-off valve sealing surface, seperated sealing easy processing assembly of semisphere valve, solves sealing surface of the discharge gate and is not durable and opens and closes that torque is big and shut-off valve flow resistance is big, flow is small, the flexible disadvantage of valve rod and low performance, the working characteristics of poor efficiency.
Description
Technical field
The utility model is related to the opening and closing devices more particularly to a kind of industrial pipeline use by pipeline liquid or gas
Valve.
Background technology
Though existing gate valve flow resistance coefficient is small, sealing surface wear is fast, and service life is short；It is durable to end valve sealing surface, but flows
Resistance coefficient is big, and axial force suffered by valve rod is easily bent greatly.Therefore to change this present situation, just have to look for new technical solution,
Change existing conventional valves structure.
Chinese patent CN206280512U is disclosed a kind of " spool inclined type from water shutoff shut-off valve ", including valve body and tilting
Formula spool, valve body include horizontal tube and tilting pipe, and the junction of horizontal tube and tilting pipe is equipped with spool fixing seal seat, and spool is solid
To determine seal receptacle and the inside of horizontal tube is divided into intake antrum and water chamber, the middle part of inclined type spool fixing seal seat is equipped with valve opening,
Inclined type spool is obliquely installed in the inside of tilting pipe, and the lower end of inclined type spool is located on spool fixing seal valve seat and seals
Stifled valve opening.When needing to close valve, driving inclined type spool is along the axis moved beneath to the left of tilting pipe, inclined type spool
Lower end be located on spool fixing seal seat and block valve opening, intake antrum is separated with water chamber；When needing to open valve,
Drive axis to the right upper direction of the inclined type spool along tilting pipe, lower end and the spool fixing seal seat point of inclined type spool
From opening valve opening, intake antrum is connected to water chamber.
But there is the protrusion that extends radially inwardly in the upper and lower end of spool fixing seal seat, medium flow direction valve seat with
Diameter at horizontal tube connection step becomes smaller, and valve-seat diameter is less than intake antrum, and valve seat guiding medium generates flow direction obliquely,
Medium flow direction is changed twice, hinders the flowing of fluid, flow resistance coefficient is still larger, and in the pressure-bearing valve of industrial pipeline
In, due to needing to take into account economy and the flexibility of design of cost, valve housing and the molding for outputting and inputting mouth are most
Number is using casting processing, since casting technique is by a variety of factors of size, wall thickness, weather, raw material and constructing operation, casting meeting
There are the various casting flaws such as stomata, misrun, misrun, sarcoma, sand holes, crackle, shrinkage porosite, shrinkage cavity and field trash, is formed by
Product, quality are very unstable.And casting is very serious to the pollution of soil, atmospheric environment, and industry is also occupied to the consumption of the energy
First of.
Invention content
The purpose of this utility model is to provide a kind of industrial pipeline valves, to solve valve stream in the prior art
Hinder the problem of larger, the easy to wear and valve housing quality of sealing is difficult to ensure.
In order to solve the above technical problems, a kind of industrial pipeline technical solution used by valve of the utility model is：
A kind of industrial pipeline valve, including horizontal valve pipe and slanting set valve pipe, the horizontal valve pipe include input port flange, the input
Mouth flange is connect with slanting set valve pipe, and valve seat is provided in the endoporus of the input port flange, valve is provided in the slanting set valve pipe
Core and valve rod, the right side of the valve seat protrude from the right side of input port flange, and the left end of the valve seat is provided with to press
The diameter of bore of the pressing sleeve of valve seat of tight valve seat, the valve seat and pressing sleeve of valve seat is equal and constitutes intake antrum, and the spool is wedge shape
The left side of spool, the wedge shape valve core is perpendicular, the pressing surface mutually pushed and gravity work of the spool and valve seat
It is consistent with direction so that medium flow direction is constant always.
The left side of the wedge shape valve core is ellipse or oblong-shaped, and the upper end of the wedge shape valve core is provided with T shapes circle
Disk hole, the lower end of the valve rod are provided with the T forming heads being adapted to T shape disc holes, rotate band movable valve plug along tilting by valve rod
The positioning guide rail being arranged in valve pipe, which is moved up and down, to be detached or contacts with valve seat right side to realize valve opening or closing.
The right side of the input port flange is concordantly arranged, the left end of the right side and slanting set valve pipe of the input port flange
Face is welded to connect or welding connection.
The right end of the input port flange is provided with boss, and the right side of the boss is welded with the left side of slanting set valve pipe
Connection or welding connection, the valve seat are arranged in the endoporus of boss.
The horizontal valve pipe further includes delivery valve pipe and delivery outlet flange, the parallel correspondence of the slanting set valve Guan Shangyu intake antrums
End is provided with notch, is welded to connect with delivery valve pipe by notch or welding is connect, the right side of delivery valve pipe passes through delivery outlet
Flange left port stretch to delivery outlet flange right output port connect with delivery outlet flange welding or welding connection.
The right end of the input port flange endoporus is provided with the gear edge extended radially inwardly, and the left end of the valve seat is provided with
Extend radially outwardly with the gear along be adapted to it is outer turn edge, it is described it is outer turn edge and keep off edge between ring be equipped with valve base sealing.
The positioning guide rail with the coaxial extension of tilting pipe is provided on one of the slanting set valve pipe and spool, it is another
It is provided with the guide groove being adapted to positioning guide rail on a, axis symmetrical above and below setting of the positioning guide rail about slanting set valve pipe, and
Spool is connected with valve rod by the way that T shapes disc hole is arranged on spool, makes spool by T shapes disc hole, positioning guide rail and guide groove
Only moved up and down along the positioning guide rail in slanting set valve pipe.
The wedge shape valve core becomes cylindroid or oblong-shaped for left side after round steel or rectangular steel plates beveling.
The wedge shape valve core and valve seat be wear-resistant material be made or common material welding abrasive sealing materials
Using the utility model generate advantageous effects be：The valve of the utility model absorbs the big stream of gate valve
The advantages of amount, the durable seal face of shut-off valve, sealing easy processing assembly of semisphere valve fission（The spool and valve rod of the utility model connect
The part more than place of connecing is equivalent to gate valve, and junction part below is equivalent to shut-off valve, and fission sealing is equivalent to semisphere valve）,
The structure and valve seat of the left side of spool and the setting of pressing sleeve ensure that medium flow direction is constant always, solve sealing surface of the discharge gate
It is not durable and shut-off valve flow resistance is big, flow is small, the flexible disadvantage of valve rod and low performance, the working characteristics of poor efficiency.Meanwhile
The endoporus of valve seat and intake antrum, water chamber, the same diameter of industrial pipeline so that media flow is steady, reduces flow resistance coefficient, moreover,
Valve working to quality guarantee period, sealing effect is not achieved when, only needing to change two accessories of spool and valve seat can reuse, repair
Simply, then it is high with value, large-tonnage product purchase cost can be saved.
Further, the left side of wedge shape valve core is set as cylindroid or oblong-shaped and perpendicular setting, and passes through T
Shape disc hole is connected with T forming heads so that valve rod rotates, and spool only moves up and down, without rotating.
Further, when need smaller flow can meet demand when, horizontal valve pipe and slanting set valve Guan Jun can be used compared with
Narrow tube makes, and the right side of input port flange is concordantly arranged, the right side of input port flange welded with slanting set valve pipe or
After welding connection, slanting set valve pipe will not interfere the connection bolt of input port flange and pipeline.
Further, when needing larger flow ability meet demand, horizontal valve pipe is all made of larger straight with slanting set valve pipe
Diameter pipes or rectangular tube make, the right side projection boss of input port flange, and the right side of boss is welded or melted with slanting set valve pipe
After connecing in succession, slanting set valve pipe is suitably moved to right by boss, avoids the connection spiral shell of slanting set valve pipe interference input port flange and pipeline
Bolt.
Meanwhile it using the pipe of dimension or rectangular tube as valve housing, being formed by welding or fusion joining process
Valve housing, it is energy-saving, it is contemplated that reduce workpiece cost 40% or so, no matter product quality is better than from performance and in cost
It is machined casting, valve housing uses industrial pipes, high-quality, price is low, simple production process, assembly are simple rapid, matter
Reliable and stable, the problem of having prevented irregular, high cost, the high pollution of casting class valve mass is measured,
Further, the setting of positioning guide rail and guide groove prevents spool from occurring to turn during slanting set valve in-pipe
It is dynamic, so that the sealing surface position of spool remains unchanged.
Further, by the way that round steel or rectangle steel cutting mode are formed spool, spool makes simpler.
Description of the drawings
Fig. 1 is the sectional view that the utility model embodiment 1 is closed.
Fig. 2 is the sectional view of input port flange in Fig. 1.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the sectional view of valve seat in Fig. 1.
Fig. 5 is the right view of Fig. 4.
Fig. 6 is the sectional view of round slanting set valve pipe.
Fig. 7 is the left view of the left side of Fig. 6.
Fig. 8 is the left view of the left side of rectangle slanting set valve pipe.
Fig. 9 is the sectional view that the utility model embodiment 2 is closed.
Figure 10 is the sectional view that the utility model embodiment 3 is closed.
In figure：1- slanting set valve pipes, 2- valve decks, 3- valve bonnet seals, 4- valve deck pressing sleeves, 5- valve rods, 6- spools, 7- valve seats, 8-
Valve base sealing, 9- pressing sleeve of valve seat, the input ports 10- flange, 11- delivery valve pipes, 12- delivery outlet flanges, 13- handwheels, 14- positioning are led
Rail, 15- gaskets, the 16- valve seals of tube, 17- keep off edge, turn edge outside 18-, 19- curved supports, 20- boss.
Specific implementation mode
The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.
Embodiment 1：
A kind of industrial pipeline valve, as shown in Figure 1, including the valve body with intake antrum and water chamber, medium is in valve body
In flow direction be from left to right.Valve body includes horizontal valve pipe and slanting set valve pipe 1, horizontal valve pipe include input port flange 10,
Delivery valve pipe 11 and delivery outlet flange 12.
As Figure 2-3, the left side of input port flange 10 is that have the plane of step, right side be plane, and input port
Flange 10 is provided centrally with centre bore, and the right end of centre bore is provided with the gear that extends radially inwardly along 17, the left end of centre bore
It is provided with internal thread.
The right end of the centre bore of input port flange 10 is equipped with valve seat 7, and valve seat 7 is located at input port flange 10 and slanting set valve pipe
The center of 1 junction, and the right side of valve seat 7 protrudes from the right side of input port flange 10, avoids input port flange 10
Right side interference spool 6 and valve seat 7 be engaged.As illustrated in figures 4-5, the left end of valve seat 7 is provided with diameter to the structure of valve seat 7
To it is outwardly extending it is outer turn edge 18, turn edge 18 is adapted to along 17 with keeping off outside, and ring is equipped with valve base sealing 8 between the two.A left side for valve seat 7
End is additionally provided with pressing sleeve of valve seat 9, and the diameter of bore of pressing sleeve of valve seat 9 is equal with the diameter of bore of valve seat 7 and constitutes intake antrum, and valve
The diameter of bore of seat pressing sleeve 9 is equal with the diameter of industrial pipeline, in order to be connect without transition with industrial pipeline, does not also hinder medium
Flowing.It is provided with external screw thread on the peripheral surface of pressing sleeve of valve seat 9, is connect with the internal thread on the centre bore of input port flange 10, is revolved
Dynamic pressing sleeve of valve seat 9 is to compress valve seat 7.After the failures such as abrasion, damage occur for the right side of valve seat 7, the valve seat that is detachably connected
Pressing sleeve 9 is to replace valve seat 7 to provide facility.
Slanting set valve pipe 1 is the seamless pipe to match with industrial pipeline outer diameter, pressure-bearing or rectangular tube, by slanting set valve pipe 1
One end chamfers to form ellipse（As shown in Figure 6）Or rectangle（As shown in Figure 8）Left side, as shown in figs 6-8, slanting set valve pipe 1
Upper corresponding end notch parallel with input port flange 10 is communicated to be connect with delivery valve pipe 11, and the right end of delivery valve pipe 11 is provided with output
Mouth flange 12.The right side of input port flange 10 and the left side of slanting set valve pipe 1, the peripheral surface of slanting set valve pipe 1 and delivery valve pipe
11 left side, the right side of delivery valve pipe 11 stretch into delivery outlet flange 12 and delivery outlet flange 12 right side be welded to connect or
Welding connects, and forms valve housing.
Spool 6 and valve rod 5, spool 6 and 1 coaxial line of slanting set valve pipe are provided in slanting set valve pipe 1.The upper end of spool 6 is arranged
There are T shape disc holes, the lower end of valve rod 5 to be provided with the T forming heads being adapted to the T shape disc holes of spool 6 so that when valve rod 5 rotates, no
It can be rotated with movable valve plug 6, spool 6 is only made to be moved up and down along positioning guide rail 14.Spool 6 is wedge shape valve core, is cylinder or length
Cube is formed by beveling mode, so that the left side of wedge shape valve core is perpendicular after installation, and it is flat with 7 right side of valve seat
The pressing surface of row, spool 6 and valve seat 7 mutually pushed is consistent with gravity direction so that medium flow direction is constant always.Spool
6 left side is detached or is contacted with the right side of valve seat 7 to realize valve opening or closing.In order to increase the wear-resisting of sealing surface
Property, the left side of spool 6, valve seat 7 right side on be welded with sealant（It is not shown in figure）, the hardness and thickness of sealant
Degree determines according to actual needs, or makes spool 6, valve seat 7 using wear-and corrosion-resistant material.
It is provided with external screw thread on the peripheral surface of the upper end of slanting set valve pipe 1（It may be flange）, pass through screw thread（Or
Flange）It is connected with valve deck 2, centre bore is provided on valve deck 2, to install valve rod 5.In the centre bore of valve deck 2 from the bottom to top successively
Valve bonnet seal 3, gasket 15, valve deck pressing sleeve 4 are installed, the lower section of valve deck pressing sleeve 4 is provided with external screw thread, with valve deck 2
The screw-internal thread fit of centre bore upper portion, with compress gasket 15 and valve bonnet seal 3.In addition, the upper surface of slanting set valve pipe 1 with
The valve seal of tube 16 is provided between valve deck 2.
Curved support 19 is provided on the peripheral surface of 2 upper end of valve deck, the upper end of curved support 19 is provided with internal thread, with valve
The external screw thread of the upper end of bar 5 coordinates so that valve rod 5 can be rotated and be moved up and down, and the upper end of valve rod 5 is additionally provided with handwheel 13.
In order to the movement of spool 6 carry out be oriented to and it is spin-ended, be provided on the inner hole wall of slanting set valve pipe 1 same with slanting set valve pipe
Axially extending positioning guide rail 14, as shown in fig. 7, there are two positioning guide rails 14, the axis pair about slanting set valve pipe one on the other
Claim arrangement, position of the spool 6 in slanting set valve pipe 1 is determined by two-point locating.
It should be noted that as shown in fig. 7, when positioning guide rail 14 is located at immediately below spool, media flow can be to positioning
Guide rail 14 causes larger impact, and in order to reduce impact of the media flow to positioning guide rail 14, positioning guide rail 14 can also be symmetrical
It is arranged in the left and right sides of spool 6.
It is provided with the guide groove being adapted to positioning guide rail 14 on the peripheral surface of spool 6, passes through positioning guide rail 14 and T shape disc holes
Setting so that the axial movement only in the slanting set valve pipe 1 of spool 6, without rotating（When on the inner hole wall in slanting set valve pipe 1
Be arranged guide groove, guide rail is set on the peripheral surface of spool 6, spool 6 can also be carried out be oriented to and it is spin-ended）.
The course of work of above-described embodiment is as follows：When needing to close valve, handwheel 13 is rotated clockwise, valve rod 5 passes through
Lower section is mobile to the left for screw-thread fit on curved support 19, and push spool 6 under the spin-ended effect of guiding of positioning guide rail 14 to the left
Lower section is moved, and spool 6 is made to be contacted with valve seat 7, and valve is closed（As shown in Figure 1）.
When needing to open valve, rotation hand wheel 13 counterclockwise, valve rod 5 is by screw-thread fit on curved support 19 to upper right
Fang Yidong, and spool 6 is pulled to be moved to upper right side, so that spool 6 is detached with valve seat 7, valve opening.
Band movable valve plug 6 being rotated by valve rod 5 to move up and down and 7 plane contact of valve seat or detach, valve turns off or on, by
It is impacted by pressure medium in spool 6, is in discrete state with valve seat 7 always, only spool 6 and valve seat when valve completely closes
7 just generate gentle touchdown friction, and sealing surface wear is few, and valve service life is long.
In addition, when need smaller flow can meet demand when, input port flange 10 and slanting set valve pipe 1 can be used compared with
Narrow tube makes, and the right side of input port flange 10 is concordantly arranged, and right side and the slanting set valve pipe 1 of input port flange 10 weld
Connect or welding connection after, slanting set valve pipe 1 will not interfere the connection bolt of input port flange 10 and pipeline.
Embodiment 2：
As shown in figure 9, difference from Example 1 is：The right end of input port flange 10, which is provided with, axially to be extended to the right
Boss 20, valve seat 7 is arranged in the endoporus of boss.The design of boss 20, which is mainly in view of, uses larger-diameter slanting set valve pipe
When 1, the excessive slanting set valve pipe 1 of diameter can interfere connects bolt on input port flange 10, is not easy to connect with industrial pipeline.
Positioning guide rail 14 is disposed therein 3 right angles, ensures position of the spool 6 in slanting set valve pipe 1 by 3 point locations
It sets.
When needing larger flow ability meet demand, input port flange 10 is all made of larger diameter tube with slanting set valve pipe 1
Material or rectangular tube make, the right side projection boss 20 of input port flange, and the right side of boss 20 is welded or melted with slanting set valve pipe 1
After connecing in succession, slanting set valve pipe 1 is suitably moved to right by boss 20, avoids slanting set valve pipe 1 that input port flange 10 is interfered to connect with pipeline
The connection bolt connect.
Embodiment 3：
As shown in Figure 10, difference from Example 1 is：Slanting set valve pipe 1 is perpendicular to delivery valve pipe 11, the axis of spool 6
Line is vertically arranged in the endoporus of slanting set valve pipe 1 so that the cut surface of spool 6 is at 10 °~45 ° heeling conditions, input port flange
Interior parallel intake antrum valve pipe right end is mitered into 10 °~45 ° heeling conditions, contacts, reaches at plane is seamless with the inclined-plane of spool 6
Sealing effect.
Claims (9)
1. a kind of industrial pipeline valve, including horizontal valve pipe and slanting set valve pipe, the horizontal valve pipe includes input port flange, institute
It states input port flange to connect with slanting set valve pipe, valve seat is provided in the endoporus of the input port flange, is set in the slanting set valve pipe
It is equipped with spool and valve rod, it is characterised in that：The right side of the valve seat protrudes from the right side of input port flange, the valve seat
Left end is provided with to compress the pressing sleeve of valve seat of valve seat, and the diameter of bore of the valve seat and pressing sleeve of valve seat is equal and constitutes water inlet
Chamber, the spool are wedge shape valve core, and the left side of the wedge shape valve core is perpendicular, the mutual pushing of the spool and valve seat
Pressing surface it is consistent with gravity direction so that medium flow direction it is constant always.
2. a kind of industrial pipeline valve according to claim 1, it is characterised in that：The left side of the wedge shape valve core is
Ellipse or oblong-shaped, the upper end of the wedge shape are provided with T shape disc holes, and the lower end of the valve rod is provided with and T shape disks
The T forming heads of hole adaptation are moved up and down and valve seat by valve rod rotation with the positioning guide rail that movable valve plug is arranged in slanting set valve pipe
Right side detaches or contacts to realize valve opening or closing.
3. a kind of industrial pipeline valve according to claim 2, it is characterised in that：The right side of the input port flange
Concordant setting, right side and the left side of slanting set valve pipe of the input port flange are welded to connect or welding is connect.
4. a kind of industrial pipeline valve according to claim 2, it is characterised in that：The right end of the input port flange is set
It is equipped with boss, right side and the left side of slanting set valve pipe of the boss are welded to connect or welding is connect, and the valve seat setting exists
In the endoporus of boss.
5. a kind of industrial pipeline valve according to claim 3 or 4, it is characterised in that：The horizontal valve pipe further includes
Delivery valve pipe and delivery outlet flange, the parallel corresponding end of the slanting set valve Guan Shangyu intake antrums are provided with notch, by notch with it is defeated
Go out valve pipe be welded to connect or welding connection, the right side of delivery valve pipe stretches to delivery outlet flange by delivery outlet flange left port
Right output port is connect with delivery outlet flange welding or welding connection.
6. a kind of industrial pipeline valve according to claim 5, it is characterised in that：The right side of the input port flange endoporus
End is provided with the gear edge extended radially inwardly, and the left end of the valve seat, which is provided with, to extend radially outwardly with the gear outside being adapted to
Turn edge, it is described it is outer turn edge and keep off edge between ring be equipped with valve base sealing.
7. a kind of industrial pipeline valve according to claim 6, it is characterised in that：Its of the slanting set valve pipe and spool
In positioning guide rail with the coaxial extension of tilting pipe is provided on one, leading of being adapted to positioning guide rail is provided on another
Slot, axis symmetrical above and below setting of the positioning guide rail about slanting set valve pipe, and spool and valve rod are by being arranged on spool T shapes
Disc hole connects, and makes spool only in slanting set valve pipe along the positioning guide rail by T shapes disc hole, positioning guide rail and guide groove
It moves up and down.
8. a kind of industrial pipeline valve according to claim 1 or 2, it is characterised in that：The wedge shape valve core is round steel
Or left side becomes cylindroid or oblong-shaped after rectangular steel plates beveling.
9. a kind of industrial pipeline valve according to claim 8, it is characterised in that：The wedge shape valve core and valve seat are
Wear-and corrosion-resistant material is made or common material welding abrasive sealing materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820521717.4U CN208074174U (en) | 2018-04-13 | 2018-04-13 | A kind of industrial pipeline valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820521717.4U CN208074174U (en) | 2018-04-13 | 2018-04-13 | A kind of industrial pipeline valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208074174U true CN208074174U (en) | 2018-11-09 |
Family
ID=64041037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820521717.4U Expired - Fee Related CN208074174U (en) | 2018-04-13 | 2018-04-13 | A kind of industrial pipeline valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208074174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361387A (en) * | 2018-04-13 | 2018-08-03 | 何书贵 | A kind of industrial pipeline valve |
-
2018
- 2018-04-13 CN CN201820521717.4U patent/CN208074174U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361387A (en) * | 2018-04-13 | 2018-08-03 | 何书贵 | A kind of industrial pipeline valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181109 Termination date: 20210413 |