CN1039980A - Vertical pressure-tight mechanism - Google Patents
Vertical pressure-tight mechanism Download PDFInfo
- Publication number
- CN1039980A CN1039980A CN 88104658 CN88104658A CN1039980A CN 1039980 A CN1039980 A CN 1039980A CN 88104658 CN88104658 CN 88104658 CN 88104658 A CN88104658 A CN 88104658A CN 1039980 A CN1039980 A CN 1039980A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- screw
- lattice
- sieve
- base plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Landscapes
- Transmission Devices (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
A kind ofly be used for square plansifter, compress the vertical pressure-tight mechanism of sieve lattice group, comprising: screw rod, nut slider, connecting rod, base plate and screw axial float positioning device with slide block guide rail in vertical.Two nut sliders screw on screw rod, and the connecting rod upper hinge support links to each other with nut slider, and lower hinge support links to each other with sieve top lattice, rotating screw bolt, and nut slider moves up and down sieve top lattice by connecting rod, loosens or compresses the bottom and sieve lattice.The present invention has screw rod and does not bear radially clamping force, the screw rod location of floating and guarantee that two connecting rods compress advantages such as sieve lattice, friction self-locking are reliable simultaneously.
Description
What the present invention relates to is the vertical pressure-tight mechanism that compresses several square plansifter that is stacked together up and down sieve lattice in vertical.
Square plansifter is a kind of powders grading equipment that is widely used in flour industry and other powder industry.According to sieve storehouse number that it had, square plansifter can be divided into three kinds of four storehouse formulas, six storehouse formulas and eight storehouse formulas.The sieve storehouse is an independent sieve unit of square plansifter, in each sieve storehouse, is all stacking the sieve lattice more than 20 from bottom to top, and each sieves and all disposes the compass screen surface that meets the flouring technology requirement on the lattice.Sieve lattice in the sieve storehouse, be positioned in vertical by means of vertical pressure-tight mechanism and compress, be positioned in the horizontal direction by means of horizontal hold-down mechanism and compress, become a stable whole, in order to avoid when square plansifter turns round, each sieves compartment and produces relative motion, powder occurs scurrying, leaks the powder phenomenon, guarantees the equipment operate as normal and stable, good technological effect is arranged.
The structure of existing square plansifter sieve lattice vertical pressure-tight mechanism is seen accompanying drawing 8, screw rod 1 flatly is bearing on the screen box framework, be shaped on two sections screw threads that pitch is identical, rotation direction is opposite on it, two sections screw thread places respectively screw a nut 2,3, each hinged connecting rod 4 of nut bottom, connecting rod 4 lower ends all are hinged on the hinged-support 5 that is installed on the lattice of sieve top.This vertical pressure-tight mechanism places sieve top lattice top, and the hinged line of centres and the down hinged line of centres constitute the isosceles trapezoid in the vertical plane on two connecting rod center lines, two connecting rods.Rotary screw, nut moves in opposite directions along the screw rod level, and the height of above-mentioned isosceles trapezoid is changed, and drives sieve top lattice and moves up and down, and reaches the purpose of unclamping or compressing bottom sieve lattice.
The advantage of this structure is that component part is few, and is simple in structure.Its major defect has three:
1. screw rod bears vertical thrust (the tens thousand of oxen of this Li Keda) screwing the nut place.Screw diameter is generally 20 millimeter, length can reach more than 700 millimeters, rigidity is very poor, under the radial load effect of tens thousand of oxen, can produce very big flexural deformation, it is unreliable that the sieve lattice are compressed, and after using the several months, because bent screws produces plastic deformation, screw rod rotates dumb, make the vertical pressure-tight mechanism operating difficulties, even lost efficacy;
2. the axial location of screw rod is determined by the bearing that is installed on the screen box framework, can not play.The sieve lattice top end face run-off the straight for a certain reason of overlapping placement in the sieve storehouse, in the time of can not being parallel to sieve lattice lower surface, top (it often happens that), a connecting rod will occur and compress the sieve lattice, the phenomenon that another root can not compress, make and be difficult for compacted, sealing by bottom sieve lattice unbalance stress;
3. screw rod transmits thrust by nut, connecting rod, and a friction self-locking pair is only arranged in the driving-chain, and promptly the screw pair between screw rod and nut is locking unreliable, when square plansifter turns round, the loosening phenomenon of screw rod often occurs, can not compress bottom sieve lattice reliably.
The object of the present invention is to provide a kind of improved easy to operate, reliable and stable sieve lattice vertical pressure-tight mechanism that can solve above-mentioned three subject matters.
Sieve lattice vertical pressure-tight mechanism provided by the present invention, place the flat sieve top sieve check top, the screw rod horizontal arrangement, be shaped on two sections screw threads that pitch is identical, rotation direction is opposite on it, two sections screw thread places screw a nut slider respectively, and the connecting rod upper hinge support is equipped with in the nut slider bottom, and the latter and small end are hinged, connecting rod lower end and connecting rod lower hinge support are hinged, and the latter is sieving on the lattice of top with bolted.Isosceles trapezoid on the center line of two connecting rods, the connecting rod in the hinged line of centres and vertical plane of down hinged line of centres formation.Screw rod is realized axial location by means of a cover float positioning device.This float positioning device is made up of positioning seat, compression (or stretching) spring etc., positioning seat is fastened on a level and is installed on the base plate of screen box framework top, two springs are arranged apart along screw axial, occupy the screw axial diverse location, and two spring coaxial lines, the corresponding end face of its two couple (promptly at screw axial at a distance of nearest that a pair of end face with at a distance of farthest that a pair of end face) supporting respectively (or suspension) is on screw rod and positioning seat, two springs all have certain predeformation, and it is opposite to act on the elastic force direction that the predeformation on screw rod or the positioning seat produces.When the suffered axial force of screw rod and spring power balanced each other, screw rod was realized the axial float location with respect to base plate.Establish the nut slider moving guide rail on the described base plate, the connecting rod upper hinge support has a surface to contact with the base plate rail lower surface, bears normal pressure, when this mechanism compresses the sieve lattice, the clamping force of vertical is born by described base plate, and screw rod does not bear this along its clamping force radially.On described base plate, fixedly connected trough-shaped housing, the two closely links to each other, and becomes as a whole, strengthen each other, and it innerly forms an enclosed cavity, and this chamber has held most of length of screw rod and last part thereof.During operation, rotating screw bolt changes the height of aforementioned isosceles trapezoid, just can compress or unclamp bottom sieve lattice.
Vertical pressure-tight mechanism provided by the present invention has following advantage:
1. vertically compress the reaction force of the required thrust of sieve lattice, be delivered to the connecting rod upper hinge support by connecting rod, then be delivered on base plate and the trough-shaped housing, and base plate is connected with trough-shaped housing closely, become an integral body, be enough to bear the clamping force of vertical, make that wherein screw rod only bears axial force, and bearing radial force not.Can rationally determine the structure and the size of base plate and trough-shaped housing as required, improve its whole bending resistance, guarantee that screw rod does not produce flexural deformation at work substantially.Base plate and trough-shaped housing bear the vertical clamping force, and screw rod is not subjected to radial load, and screw rod does not produce flexural deformation, and this has just overcome one of significant drawback of existing vertical pressure-tight mechanism;
2. screw rod is realized the axial float location by means of float positioning device, is convenient to compress the sieve lattice, and thrust evenly distributes around guaranteeing the sieve lattice.If bottom sieve lattice top end face tilt, not parallel with sieve top lattice bottom face, a connecting rod will occur and compress the sieve lattice, another root connecting rod is malcompression still but, at this moment, two suffered thrusts of connecting rod differ in size, and the horizontal component of small end clamping force makes screw rod be in the axially loaded non-equilibrium state, screw rod generation axial float causes the deflection difference of two springs in the float positioning device.When suffered axial force and the two spring power when balancing each other except that spring power of screw rod, screw rod stops play and in its axial location, makes two connecting rods be in identical impaction state.The present invention compresses the sieve lattice under sieving lattice top end face and sieve lattice lower surface, top uneven situation in the bottom, and thrust evenly distributes around guaranteeing bottom sieve lattice, this just overcome existing vertical pressure-tight mechanism significant drawback two;
3. transmit in the driving-chain of thrust and have two self-locking friction pairs, i.e. friction pair between the screw pair between screw rod and nut and connecting rod upper hinge support and base plate rail, screw rod is friction self-locking reliably, can not become flexible, and can guarantee mechanism's reliable operation.Like this, the present invention just overcome existing vertical pressure-tight mechanism significant drawback three;
4. by base plate and the formed enclosed cavity of trough-shaped housing, held most of length of screw rod and gone up all parts, good sealing effect is convenient to guarantee that it is not subjected to contaminating impurities such as dust, prolongs its service life;
5. all members of the present invention are installed in the screen box frame roof, and it can become an assembly unit with sieve top lattice, assembled in advance, and integral installation is on screen box then.Therefore, this mechanism's assembly technology performance is good, easy to maintenance;
6. all members of the present invention are contained in the screen box frame roof, and no morpheme tolerance between the screen box, and processing, assembly cost is low.
Below, in conjunction with the accompanying drawings, the present invention is described, wherein:
Accompanying drawing 1 is the front view of most preferred embodiment of the present invention.
Accompanying drawing 2 is a C-C place broken section enlarged drawing in the accompanying drawing 1.
Accompanying drawing 3 is a D-D profile in the accompanying drawing 1.
Accompanying drawing 4 is an I place partial enlarged drawing in the accompanying drawing 1.
Accompanying drawing 5 is an E-E place broken section enlarged drawing in the accompanying drawing 1.
Accompanying drawing 6 is an II place partial enlarged drawing in the accompanying drawing 1.
Accompanying drawing 7 is a F-F place partial sectional view in the accompanying drawing 6.
Accompanying drawing 8 is a vertical pressure-tight mechanism structure chart of the prior art.
Implement best mode of the present invention, referring to accompanying drawing 1.Vertically compress machinery and be configured in lattice top, sieve top, be furnished with the identical vertical pressure-tight mechanism of two covers on each sieve top lattice.Screw rod in every cover vertical pressure-tight mechanism by horizontal arrangement above connecting rod, sieve top case is in the connecting rod below, isosceles trapezoid in vertical plane of hinged line of centres formation under the hinged line of centres and two connecting rods on two connecting rod center lines, two connecting rods, two connecting rod center lines are trapezoidal waist, connecting rod drives sieve top lattice and moves up and down in vertical, makes the bottom respectively sieve lattice and is loosened or compress.
Shown in accompanying drawing 1,2,3,4, this mechanism is fastened on the screen box frame roof by the base plate 10 of a horizontal arrangement by means of screw 11, trough-shaped housing 12 is fastened on the base plate 10 by screw 13, and occupy base plate 10 tops, and the two forms a cross section is trapezoidal enclosed cavity.Have circular hole 15 on the end shrouding 14 in this chamber, the end that screw rod 16 has spanner mouth 17 passes this hole, stretches out outside the chamber, so that rotating screw bolt 16 is operated.
As shown in Figure 5, the bottom of nut slider 20 links to each other with connecting rod upper hinge support 22, and the connecting portion of the two is a ram 23, and ram 23 is embedded on the base plate 10 in the corresponding base plate rail 24, the upper surface 25 of connecting rod upper hinge support 22 contacts with base plate rail place lower surface 26, bears normal pressure.
The axial location of screw rod 16 depends on float positioning device.As shown in Figure 6, float positioning device is made up of positioning seat 27, locating ring 28, compression spring 29, spring base 30 etc.Wherein, locating ring 28 skies are enclosed within on the screw rod 16, and the empty inner chamber that is inserted in positioning seat 27, the two sides of locating ring 28 are enclosed within on the screw rod 16 with two skies respectively and the adjacent face that occupies the compression spring 29 of locating ring 28 2 sides contacts, also can contact simultaneously, so that locating ring 28 is realized axial location in positioning seat 27 with one of two side faces of positioning seat 27 inner chambers.Adopt locating ring 28, the radial clearance of locating ring 28 in positioning seat 27 makes locating ring 28 radially to move about in positioning seat 27, guarantees that screw rod 16 is not subjected to additional radial constraint at positioning seat 27 places, do not produce flexural deformation; And locating ring 28 moves axially the gap in positioning seat 27, in order to the axial rigging error of part on the compensation screw rod 16; Simultaneously, reduced the machining accuracy at positioning seat 27 endoporus places.Another end face of the compression spring 29 of locating ring 28 2 sides contacts with two spring base 30 end faces that are sleeved on the screw rod 16 respectively.Spring base 30 is fastened on the screw rod 16 by means of screw 31, its determining positions the compression spring 29 the precommpression deflection.
As shown in Figure 7, positioning seat 27 is installed on the base plate 10 by screw 32, and occupy the centre position of base plate 10 and trough-shaped housing 12 formed enclosed cavities.When screw rod 16 suffered axial forces and its when the elastic force of spring 29 balances each other by compression, screw rod 16 with respect to base plate 10 in its axial float location.
Two nut sliders 20,21 are assemblied on the screw rod screw thread 18,19 places of side outside two spring bases 30, should guarantee during assembling that two nut sliders 20,21 are with respect to positioning seat 27 center line symmetries; Simultaneously, in the vertical pressure-tight mechanism of two cover pairing uses on the lattice of same sieve top, should guarantee that the respective nut slide position is identical.
In this vertical pressure-tight mechanism, connecting rod 33 upper ends and connecting rod upper hinge support 22 are hinged, lower end and connecting rod lower hinge support 34 are hinged, connecting rod lower hinge support 34 is fixed on the stiffener plate of sieve top lattice bottom by means of screw 35, and the center of the rectangle formed of four connecting rod lower hinge support lines of centres of the cover of two on this sieve top lattice vertical pressure-tight mechanism with sieve lattice (sieve top lattice and bottom and respectively sieve lattice) center on same plumb line.
The present invention's operation is very simple, light and safe and reliable.Behind inspection or the replacing sieve lattice, the operator clockwise rotates among this embodiment of screw rod 16(screw thread 18 with spanner and is dextrorotation, screw thread 19 is left-handed), driving two nut sliders 20,21 axially moves (referring at this moment deviate from mutually) in the base plate rail 24 on base plate 10 in opposite directions along screw rod 16, drive sieve top lattice by connecting rod upper hinge support 22, connecting rod 33, connecting rod lower hinge support 34 and move down, compress bottom sieve lattice (not shown bottom sieve lattice) gradually.After operation is finished, because the friction self-locking of screw pair and base plate rail place moving sets, can guarantee that screw rod 16 can not become flexible, make nut slider 20,21 remain on due position, thereby guarantee to have stable enough thrusts, guarantee that respectively sieving lattice is in good impaction state all the time, equipment has stable good technological effect.Rotate counterclockwise screw rod 16, two nut sliders 20,21 and move (referring to mutually close at this moment) in opposite directions, make sieve top lattice move up, loosen bottom sieve lattice, can check or change some sieve lattice.
Claims (3)
1, a kind ofly be used for square plansifter, compress the vertical pressure-tight mechanism of several sieve lattice that are stacked together up and down, comprising in vertical:
Install, the rotating screw rod that has two sections screw threads that pitch is identical, rotation direction is opposite of level,
Two nut sliders that screw on described screw rod,
Two connecting rods, its upper hinge support links to each other with nut slider, and lower hinge support links to each other with sieve top lattice, the isosceles trapezoid on the center line of two connecting rods, the connecting rod in the hinged line of centres and vertical plane of down hinged line of centres formation,
It is characterized in that this mechanism is fastened on screen box framework top by the base plate of a horizontal arrangement, described screw rod is realized axial location by means of a cover float positioning device, this float positioning device is by positioning seat, compositions such as compression (or stretching) spring, positioning seat is fastened on the aforementioned base plate, two springs are arranged apart along screw axial, occupy the screw axial diverse location, and two spring coaxial lines, the corresponding end face of its two couple (promptly at screw axial at a distance of nearest that a pair of end face and that a pair of end face farthest) supporting respectively (or suspension) is on screw rod and positioning seat, two springs all have certain predeformation, and it is opposite to act on the elastic force direction that the predeformation on screw rod or the positioning seat produces.
2, a kind of as the desired vertical pressure-tight mechanism of claim 1, it is characterized in that described base plate is provided with the nut slider moving guide rail, the connecting rod upper hinge support that links to each other with nut slider has a surface to contact with the lower surface of this base plate rail.
3, a kind of as claim 1 or 2 desired vertical pressure-tight mechanisms, it is characterized in that there is a trough-shaped housing described base plate top, the two closely links to each other, and becomes one, there is an enclosed cavity its inside, and this cavity has held all parts on most of length of screw rod and the screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88104658 CN1012342B (en) | 1988-08-05 | 1988-08-05 | Vertical pressure-tight mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88104658 CN1012342B (en) | 1988-08-05 | 1988-08-05 | Vertical pressure-tight mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1039980A true CN1039980A (en) | 1990-02-28 |
| CN1012342B CN1012342B (en) | 1991-04-17 |
Family
ID=4833103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88104658 Expired CN1012342B (en) | 1988-08-05 | 1988-08-05 | Vertical pressure-tight mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1012342B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007134487A1 (en) * | 2006-05-24 | 2007-11-29 | Jin Feng Wang | A semi-automatic clamping plate apparatus |
| CN101001972B (en) * | 2004-07-23 | 2010-05-05 | 大日本印刷株式会社 | Method for sticking metallic thin sheet to frame, and device therefor |
| CN102350412A (en) * | 2011-09-09 | 2012-02-15 | 河南中原轧辊有限公司 | Dual-motor transmission type high-square flat screen |
| CN103611683A (en) * | 2013-11-19 | 2014-03-05 | 长沙开元仪器股份有限公司 | Vibrating screen machine and fast clamping unit thereof |
| CN107494727A (en) * | 2017-09-27 | 2017-12-22 | 南通大鲸智能科技有限公司 | A kind of energy saving and environment friendly grain drying machine circulating drier structure |
| CN107520124A (en) * | 2017-10-23 | 2017-12-29 | 安徽理工大学 | A kind of hand-rail type abrasive material screen device |
| CN108620580A (en) * | 2018-06-15 | 2018-10-09 | 四川深源钼业科技股份有限公司 | A kind of molybdenum product processing molybdenum powder vibrating device |
| CN108789497A (en) * | 2018-07-12 | 2018-11-13 | 合肥巨智能装备有限公司 | A kind of self-adapting float mechanism |
| CN108961534A (en) * | 2017-05-19 | 2018-12-07 | 山东新北洋信息技术股份有限公司 | Paper money case and automatic teller machine |
| CN110410633A (en) * | 2019-07-26 | 2019-11-05 | 苏州萨瑟斯兰环境科技有限公司 | A kind of ecological environment visually captures monitor device |
| CN114033196A (en) * | 2021-11-16 | 2022-02-11 | 北京建工新型建材科技股份有限公司 | Prefabricated wall body support system |
| USD963099S1 (en) | 2020-09-28 | 2022-09-06 | Springfield, Inc. | Rifle |
-
1988
- 1988-08-05 CN CN 88104658 patent/CN1012342B/en not_active Expired
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101001972B (en) * | 2004-07-23 | 2010-05-05 | 大日本印刷株式会社 | Method for sticking metallic thin sheet to frame, and device therefor |
| WO2007134487A1 (en) * | 2006-05-24 | 2007-11-29 | Jin Feng Wang | A semi-automatic clamping plate apparatus |
| CN102350412A (en) * | 2011-09-09 | 2012-02-15 | 河南中原轧辊有限公司 | Dual-motor transmission type high-square flat screen |
| CN103611683A (en) * | 2013-11-19 | 2014-03-05 | 长沙开元仪器股份有限公司 | Vibrating screen machine and fast clamping unit thereof |
| CN103611683B (en) * | 2013-11-19 | 2015-06-17 | 长沙开元仪器股份有限公司 | Vibrating screen machine and fast clamping unit thereof |
| CN108961534B (en) * | 2017-05-19 | 2021-05-14 | 山东新北洋信息技术股份有限公司 | Bank note box and cash recycling machine |
| CN108961534A (en) * | 2017-05-19 | 2018-12-07 | 山东新北洋信息技术股份有限公司 | Paper money case and automatic teller machine |
| CN107494727A (en) * | 2017-09-27 | 2017-12-22 | 南通大鲸智能科技有限公司 | A kind of energy saving and environment friendly grain drying machine circulating drier structure |
| CN107520124A (en) * | 2017-10-23 | 2017-12-29 | 安徽理工大学 | A kind of hand-rail type abrasive material screen device |
| CN108620580A (en) * | 2018-06-15 | 2018-10-09 | 四川深源钼业科技股份有限公司 | A kind of molybdenum product processing molybdenum powder vibrating device |
| CN108789497A (en) * | 2018-07-12 | 2018-11-13 | 合肥巨智能装备有限公司 | A kind of self-adapting float mechanism |
| CN110410633A (en) * | 2019-07-26 | 2019-11-05 | 苏州萨瑟斯兰环境科技有限公司 | A kind of ecological environment visually captures monitor device |
| USD963099S1 (en) | 2020-09-28 | 2022-09-06 | Springfield, Inc. | Rifle |
| USD1024252S1 (en) | 2020-09-28 | 2024-04-23 | Springfield, Inc. | Rifle |
| CN114033196A (en) * | 2021-11-16 | 2022-02-11 | 北京建工新型建材科技股份有限公司 | Prefabricated wall body support system |
| CN114033196B (en) * | 2021-11-16 | 2023-05-16 | 北京建工新型建材科技股份有限公司 | Prefabricated wall body supporting system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1012342B (en) | 1991-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1039980A (en) | Vertical pressure-tight mechanism | |
| US20100206187A1 (en) | Punching press | |
| US5372425A (en) | Cushioned restraining device for shaker apparatus | |
| CN1287966A (en) | Withdrawing-back balancing wt. for straight beam type high above ground platform | |
| CA2217224A1 (en) | Industrial robot with mass balance | |
| CN2645012Y (en) | Friction drive type cylinder rotation apparatus | |
| CN2035660U (en) | Vertical pressing structure for screen | |
| CN114321573A (en) | Adjusting sizing block | |
| US3030098A (en) | Resilient mount assembly | |
| CN1304192C (en) | Mechanical presser | |
| CN1654288A (en) | Transporting apparatus | |
| CN1091081A (en) | Hydraulic operated bullodozer | |
| KR102511918B1 (en) | Lapping device for quartz ring wrapping with high movement convenience and high processing precision | |
| CN112607556B (en) | Spliced variable load hoisting mechanism | |
| CN110542620B (en) | Multi-mode erosion wear test device | |
| CN1051260C (en) | An arrangement for fastening a roll-unit firmly to a roll stand | |
| US20030132037A1 (en) | Lift system for a platform, and weighing system equipped with the lift system | |
| CN112744740A (en) | Multi-platform coaxiality adjusting device | |
| CN221291105U (en) | Screw machine assembly fixture | |
| CN114619331B (en) | Dead pixel staggered layer polishing equipment for composite material blade | |
| CN219198065U (en) | Rotary transmission equipment mounting frame | |
| CN220409645U (en) | Epidermis frame elevating gear | |
| CN114851130B (en) | Camshaft dismouting device | |
| CN220770067U (en) | Flexible variable-pitch module of overlength heavy ball screw | |
| CN220029324U (en) | Bolt tightness all-in-one machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |