CN103879873B - A kind of have connecting rod mechanism and support protecting platform hold the steady tank arrangement of tank - Google Patents
A kind of have connecting rod mechanism and support protecting platform hold the steady tank arrangement of tank Download PDFInfo
- Publication number
- CN103879873B CN103879873B CN201410122758.2A CN201410122758A CN103879873B CN 103879873 B CN103879873 B CN 103879873B CN 201410122758 A CN201410122758 A CN 201410122758A CN 103879873 B CN103879873 B CN 103879873B
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- tank
- force
- arm
- steady
- 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.)
- Expired - Fee Related
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 210000000078 claw Anatomy 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of have connecting rod mechanism and support protecting platform hold the steady tank arrangement of tank, comprise frame, supporting plate, be arranged on holding tank arrangement and being arranged on the steady tank arrangement of upper rack inside frame; Hold tank arrangement to comprise the transmission arm of force, hold tank oil cylinder, Telescopic drive link and claw etc.; Steady tank arrangement comprises rocking arm, steady tank oil cylinder, guide rail, auxiliary steady tank oil cylinder, removable brace table and roller etc.The transmission arm of force, holding the connecting rod mechanism of tank oil cylinder, Telescopic drive link and claw composition, reducing that to hold tank oil cylinder required stressed when accepting cage dexterously, save propulsion source; The support protecting platform of guide rail, auxiliary steady tank oil cylinder, removable brace table and roller composition, achieves the support defencive function of rocking arm in jack-up process well, not only saves propulsion source, more increase the safety in device working process.This holds the steady tank arrangement structure of tank simply, safe and reliable, and applicability is strong, has good effect.
Description
Technical field
The present invention relates to a kind of have connecting rod mechanism and support protecting platform hold the steady tank arrangement of tank; be specifically related to a kind of for mine vertical shaft cage hoisting; prevent cage from affecting normal loading and unloading due to upper and lower play, be particularly useful for the undertaking of large-scale vertical shaft hoisting cage and stablize.
Background technology
In exploitation of mineral resources process, vertical shaft hoisting is a kind of indispensable hoisting way.And for vertical shaft hoisting, in the loading and unloading process of cage, in order to avoid impact load directly acts on cage, carrying device for cage need be set; Meanwhile, when the equipment turnover cage that load is larger, the gross distortion of hoisting cable can be caused, cause the play up and down of cage, therefore also need to arrange cage stabilizing device.Thus, hold the steady tank arrangement of tank particularly important in cage hoisting process.
By the end of at present, the development of holding the steady tank arrangement of tank is both at home and abroad comparatively ripe, but still has many places to have much room for improvement.
At present, hold the steady tank problem of tank for solving, coal mining driving surface many employings cage hold the steady tank arrangement of tank, though this device relative maturity, also have certain shortcoming and defect part.Number of patent application is 200810020506.3 disclose a kind of Wen Guan mechanism of promoting for vertical cage and steady tank arrangement, have simultaneously and hold tank and steady tank function, and when cage turnover load difference is larger, also accurately can achieve a butt joint safely, but its selling at exorbitant prices, complex operation, the change compensating hoisting cable length in loading and unloading processes cannot be regulated; Number of patent application be 200920037151.9 disclose a kind of lifting container hold the steady tank arrangement of tank, this apparatus structure is simple, easy to operate, time of run is short and cost is low, but very high to the demand of propulsion source.Above two kinds of devices all lack corresponding fender guard to ensure that rocking arm lifts the safety in process.
Summary of the invention
Customer service the deficiencies in the prior art part of the present invention, provide a kind of have connecting rod mechanism and support protecting platform hold the steady tank arrangement of tank, it is simple and reliable for structure, and from saving propulsion source to a great extent, improve the safety of equipment, effect is very outstanding.
The technical scheme that the present invention provides for technical solution problem:
Have connecting rod mechanism and support protecting platform hold the steady tank arrangement of tank, comprising: frame (1), be arranged on frame (1) inner side holding tank arrangement and being arranged on the steady tank arrangement on frame (1) top; The described tank arrangement that holds comprises: the transmission arm of force (2), one hold tank oil cylinder (3), two Telescopic drive links (4), two claws (6); The described transmission arm of force (2) is a kind of special welded steel structure: weld a pair both sides arm of force abreast in the bilateral symmetry of strip shape square steel, and strip shape square steel midway location welding one in the middle part of the arm of force, the plane at the middle part arm of force near normal both sides arm of force and the common place of strip shape square steel, and the two ends of this strip shape square steel are hingedly mounted on frame (1) inner side; Described tank oil cylinder (3) bottom of holding is hinged on frame (1) bottom, and the middle part arm of force of upper end and the transmission arm of force (2) is hinged; Described claw (6) is in subtriangular, and be hinged in frame (1) by a summit, one end of Telescopic drive link (4) is articulated with one end of the both sides arm of force of the transmission arm of force (2), and the other end is articulated with the lower vertex of claw (6); The transmission arm of force (2), hold tank oil cylinder (3), Telescopic drive link (4) and claw (6) composition connecting rod mechanism, hold the flexible of tank oil cylinder (3) by one and control the rotation of two claws (6) around hinge-point simultaneously, when claw (6) bears cage impact, the arm of force that the power that Telescopic drive link (4) puts on the transmission arm of force (2) is formed the hinge-point of the transmission arm of force (2) in frame (1) is very little, be approximately 0, so it is very little to hold the power that tank oil cylinder (3) bears.
Described holds the steady tank arrangement of tank, and described telescopic transmission rod (4) inside is provided with screw thread, by this drive link that is threaded, can be regulated the extension elongation of drive link by screw thread,
Described holds the steady tank arrangement of tank, and described steady tank arrangement comprises rocking arm (7), steady tank oil cylinder (8), guide rail (9), auxiliary steady tank oil cylinder (10), removable brace table (11) and roller (12); Described rocking arm (7) rear end is hinged on upper rack, described steady tank oil cylinder (8) bottom is hinged on frame (1) bottom, the other end is hinged on rocking arm (7), flexible lifting, the swing that can control rocking arm (7) of steady tank oil cylinder (8); Described guide rail (9) is made up of two ends, both sides, the top parallel orbit being distributed in frame (1), described removable brace table (11) is arranged on the track of guide rail (9), and adopts crossbeam to be connected between two removable brace tables (11); Described auxiliary steady tank oil cylinder (10) one end is hinged on the top of frame (1), the other end is connected with the crossbeam at removable brace table (11) middle part, and the flexible removable brace table (11) that makes of auxiliary steady tank oil cylinder (10) is upper mobile at guide rail (9); Described roller (12) is placed in rocking arm (7) rear end, roller (12) can with the ramp interface of removable brace table 11 opposite side.
Beneficial effect:
1) can accept reposefully and stablize cage, realize the function of holding the steady tank of tank well;
2) utilize connecting rod mechanism dexterously, make to hold tank oil cylinder and holding in tank process stressed very little, reduce the demand to propulsion source;
3) what can regulate claw according to the actual requirements holds tank height, has better comformability;
4) existence supporting protecting platform saves propulsion source, makes device more safe and reliable;
5) shorten time of run, raising efficiency is greatly improved.
Accompanying drawing explanation
Fig. 1 is mounting structure schematic diagram of the present invention.
Fig. 2 is that the present invention holds tank arrangement structural representation.
Fig. 3 is the birds-eye view that the present invention holds tank arrangement.
Fig. 4 is the part sectional view of parts Telescopic drive link of the present invention.
Fig. 5 is the birds-eye view that the present invention supports protecting platform.
In figure: frame-1, the transmission arm of force-2, holds tank oil cylinder-3, Telescopic drive link-4, supporting plate-5, claw-6, rocking arm-7, steady tank oil cylinder-8, guide rail-9, auxiliary steady tank oil cylinder-10, removable brace table-11, roller-12.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.
Shown in figure 1, a kind of there is connecting rod mechanism and support the steady tank arrangement of tank that holds of protecting platform comprise: frame 1, supporting plate 5, be arranged on holding tank arrangement and being arranged on the steady tank arrangement on frame 1 top inside frame 1; The top of frame 1 and bottom couple together by supporting plate 5, make whole device more stable; Hold tank arrangement and utilize connecting rod mechanism dexterously, reduce the demand of holding to propulsion source in tank process; Steady tank arrangement is provided with support protecting platform, saves propulsion source, improves the safety of device.
Shown in figure 1, Fig. 2, Fig. 3 and Fig. 4, the undertaking of cage and stablely need each side to arrange one at cage and hold the steady tank arrangement of tank and come, described in hold tank arrangement and comprise: the transmission arm of force 2, holds tank oil cylinder 3, two Telescopic drive links 4, two claws 6; The described transmission arm of force 2 is a kind of special welded steel structures: weld a pair both sides arm of force abreast in the bilateral symmetry of strip shape square steel, and strip shape square steel midway location welding one in the middle part of the arm of force, the plane at the middle part arm of force near normal both sides arm of force and the common place of strip shape square steel, and the two ends of this strip shape square steel are hingedly mounted on inside frame 1; Described tank oil cylinder 3 bottom of holding is hinged on bottom frame 1, and the middle part arm of force of upper end and the transmission arm of force 2 is hinged, and holding tank oil cylinder 3 with horizontal plane angle is 30-50 °; Described telescopic transmission rod 4 inside is provided with screw thread, by this drive link that is threaded, the extension elongation of drive link can be regulated by screw thread, described claw 6 is in subtriangular, and on a summit by being hingedly mounted in frame 1, one end of Telescopic drive link 4 is articulated with one end of the both sides arm of force of the transmission arm of force 2, and the other end is articulated with the lower vertex of claw 6; The transmission arm of force 2, hold tank oil cylinder 3, Telescopic drive link 4 and claw 6 and form connecting rod mechanism, hold the flexible of tank oil cylinder 3 by one and control the rotation of two claws 6 around hinge-point simultaneously, the transmission arm of force 2 is similar in appearance to a lever, when claw 6 bears cage impact, the arm of force that the power that Telescopic drive link 4 puts on the transmission arm of force 2 is formed the hinge-point of the transmission arm of force 2 in frame 1 very little (approximate and can be 0), so it is very little to hold the power that tank oil cylinder 3 bears; Telescopic drive link 4 inside is provided with and is threaded, before device work, the length of whole drive link is changed by changing the length be threaded, when device works, drive link length no longer changes, thus can hold tank height by what change that the length of Telescopic drive link 4 regulates claw 6 according to the actual requirements.
Shown in figure 1, Fig. 5, described steady tank arrangement comprises: rocking arm 7, steady tank oil cylinder 8, guide rail 9, auxiliary steady tank oil cylinder 10, removable brace table 11 and roller 12; Described rocking arm 7 rear end is hinged on upper rack, and described steady tank oil cylinder 8 bottom is hinged on bottom frame 1, and the other end is hinged on rocking arm 7, flexible lifting, the swing that can control rocking arm 7 of steady tank oil cylinder 8; Described guide rail 9 is made up of two ends, both sides, the top parallel orbit being distributed in frame 1, and described removable brace table 11 is arranged on the track of guide rail 9, and adopts crossbeam to be connected between two removable brace tables 11; Described auxiliary steady tank oil cylinder 10 one end is hinged on the top of frame 1, and the other end is connected with the crossbeam in the middle part of removable brace table 11, and auxiliary the flexible of steady tank oil cylinder 10 makes removable brace table 11 move on the rail 9; Described roller 12 is placed in rocking arm 7 rear end, roller 12 can with the ramp interface of removable brace table 11 opposite side.
Shown in figure 1, when there being cage decline to need device of the present invention work, HYDRAULIC CONTROL SYSTEM is held tank oil cylinder 3 and is stretched out, claw 6 is driven to turn to position shown in Fig. 2 around hinge-point by the transmission arm of force 2 and Telescopic drive link 4, in this position Telescopic drive link 4 level of approximation, two end points in claw 6 top also level of approximation, waits for the impact of cage.Meanwhile, the steady tank oil cylinder 8 of HYDRAULIC CONTROL SYSTEM stretches out, by rocking arm 7 jack-up, it is close to rocking arm 7 rear end that auxiliary steady tank oil cylinder 10 stretches out the removable brace table 11 of promotion; the roller 12 on rocking arm 7 rolls until roller 12 withstands the rear end obliquity of rocking arm 7 along removable brace table 11; now the steady tank oil cylinder 8 of HYDRAULIC CONTROL SYSTEM unloads; roller 12 drops on the slope of removable brace table 11 opposite side just; by oppositely stuck for removable brace table 11, removable brace table 11 serves the effect of supplemental support rocking arm 7 well.When claw 6 accepts cage, the transmission arm of force 2, hold tank oil cylinder 3, scalable claw 4 and claw 6 composition connecting rod mechanism particular location as shown in fig. 1, now hold tank oil cylinder 3 stressed very little.
After cage has been accepted, hydraulic efficiency pressure system first controls steady tank oil cylinder 8 and stretches out rocking arm 7 jack-up, roller 12 in the vertical direction is made just to be positioned at above the platform of removable brace table 11, then control auxiliary steady tank oil cylinder 10 to shrink, roller 12 is along the platform roll of removable brace table 11, when roller 12 is rolled into the slope position of platform end, steady tank oil cylinder 8 starts to shrink, along with steady tank oil cylinder 8 and the contraction of assisting steady tank oil cylinder 10, roller 12 rolls until leave removable brace table 11, now roller 12 touches frame 1 upper end, steady tank oil cylinder 8 and auxiliary steady tank oil cylinder 10 are contracted to end position, rocking arm 7 is rocked to level attitude, rocking arm 7 compresses the chassis of cage.After cage loading and unloading complete, HYDRAULIC CONTROL SYSTEM steady tank oil cylinder 8 and auxiliary steady tank oil cylinder 10 stretch out, repeat the process of above-mentioned jack-up rocking arm 7, hold tank oil cylinder 3 to shrink simultaneously, drive claw 6 to rotate backward away from cage around hinge-point by the transmission arm of force 2 and Telescopic drive link 4, cage leaves this and holds the steady tank arrangement of tank.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (2)
1. one kind have connecting rod mechanism and support protecting platform hold the steady tank arrangement of tank, it is characterized in that, comprising: frame (1), be arranged on frame (1) inner side holding tank arrangement and being arranged on the steady tank arrangement on frame (1) top; The described tank arrangement that holds comprises: the transmission arm of force (2), one hold tank oil cylinder (3), two Telescopic drive links (4), two claws (6); The described transmission arm of force (2) is a kind of special welded steel structure: weld a pair both sides arm of force abreast in the bilateral symmetry of strip shape square steel, and strip shape square steel midway location welding one in the middle part of the arm of force, the plane at the middle part arm of force near normal both sides arm of force and the common place of strip shape square steel, and the two ends of this strip shape square steel are hingedly mounted on frame (1) inner side; Described tank oil cylinder (3) bottom of holding is hinged on frame (1) bottom, and the middle part arm of force of upper end and the transmission arm of force (2) is hinged; Described claw (6) is in subtriangular, and be hinged in frame (1) by a summit, one end of Telescopic drive link (4) is articulated with one end of the both sides arm of force of the transmission arm of force (2), and the other end is articulated with the lower vertex of claw (6); The transmission arm of force (2), hold tank oil cylinder (3), Telescopic drive link (4) and claw (6) composition connecting rod mechanism, hold the flexible of tank oil cylinder (3) by one and control the rotation of two claws (6) around hinge-point simultaneously, when claw (6) bears cage impact, the arm of force that the power that Telescopic drive link (4) puts on the transmission arm of force (2) is formed the hinge-point of the transmission arm of force (2) in frame (1) is very little, be approximately 0, so it is very little to hold the power that tank oil cylinder (3) bears; Described steady tank arrangement comprises rocking arm (7), steady tank oil cylinder (8), guide rail (9), auxiliary steady tank oil cylinder (10), removable brace table (11) and roller (12); Described rocking arm (7) rear end is hinged on upper rack, described steady tank oil cylinder (8) bottom is hinged on frame (1) bottom, the other end is hinged on rocking arm (7), flexible lifting, the swing that can control rocking arm (7) of steady tank oil cylinder (8); Described guide rail (9) is made up of two ends, both sides, the top parallel orbit being distributed in frame (1), described removable brace table (11) is arranged on the track of guide rail (9), and adopts crossbeam to be connected between two removable brace tables (11); Described auxiliary steady tank oil cylinder (10) one end is hinged on the top of frame (1), the other end is connected with the crossbeam at removable brace table (11) middle part, and the flexible removable brace table (11) that makes of auxiliary steady tank oil cylinder (10) is upper mobile at guide rail (9); Described roller (12) is placed in rocking arm (7) rear end, roller (12) can with the ramp interface of removable brace table (11) opposite side.
2. according to claim 1ly hold the steady tank arrangement of tank, it is characterized in that: described telescopic transmission rod (4) inside is provided with screw thread, by this drive link that is threaded, the extension elongation of drive link can be regulated by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410122758.2A CN103879873B (en) | 2014-03-31 | 2014-03-31 | A kind of have connecting rod mechanism and support protecting platform hold the steady tank arrangement of tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410122758.2A CN103879873B (en) | 2014-03-31 | 2014-03-31 | A kind of have connecting rod mechanism and support protecting platform hold the steady tank arrangement of tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103879873A CN103879873A (en) | 2014-06-25 |
| CN103879873B true CN103879873B (en) | 2015-08-12 |
Family
ID=50949053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410122758.2A Expired - Fee Related CN103879873B (en) | 2014-03-31 | 2014-03-31 | A kind of have connecting rod mechanism and support protecting platform hold the steady tank arrangement of tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103879873B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105621175B (en) * | 2014-11-05 | 2017-12-19 | Abb技术有限公司 | The control method and elevator system of elevator system |
| CN104925661B (en) * | 2015-06-16 | 2016-12-28 | 陈文� | A kind of self-stabilization type hydraulic support device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201250041Y (en) * | 2008-11-28 | 2009-06-03 | 孙春廷 | Cage support machine |
| CN203199859U (en) * | 2013-05-03 | 2013-09-18 | 山东加宁重工有限公司 | Multifunctional locking tank swing-deck |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05270770A (en) * | 1992-03-25 | 1993-10-19 | Ohbayashi Corp | Unloading device of lift for construction site |
| JP2003034409A (en) * | 2001-07-19 | 2003-02-07 | Mitsui Eng & Shipbuild Co Ltd | Lifting carrier position retaining device in multistory warehouse |
-
2014
- 2014-03-31 CN CN201410122758.2A patent/CN103879873B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201250041Y (en) * | 2008-11-28 | 2009-06-03 | 孙春廷 | Cage support machine |
| CN203199859U (en) * | 2013-05-03 | 2013-09-18 | 山东加宁重工有限公司 | Multifunctional locking tank swing-deck |
Non-Patent Citations (1)
| Title |
|---|
| 《提升机盘形制动器无石棉闸瓦的摩擦性能》;朱真才等;《哈尔滨工业大学学报》;20080331;第40卷(第3期);462-465 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103879873A (en) | 2014-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105507178B (en) | Expressway automatic distributing and discharging recycles road cone warehousing system assembly | |
| CN105048322A (en) | Replacement system of capacitor on tower | |
| CN105776071B (en) | A kind of elastic wheel group pile formula overturns transportation resources | |
| CN203159047U (en) | Hydraulic span and height adjustable gantry crane | |
| CN101791657B (en) | Conveying and blanking mechanism of bar material cutting production line | |
| CN104229449A (en) | Automatic turnover machine | |
| CN102602820A (en) | Installation and removal crane for mining devices | |
| CN103879873B (en) | A kind of have connecting rod mechanism and support protecting platform hold the steady tank arrangement of tank | |
| CN107673046B (en) | A kind of automatic turning for LCD TV founds straight device | |
| CN103821548A (en) | Bottom lifting mechanism and hydraulic support | |
| CN203781754U (en) | Movable weight hoister | |
| CN102383818B (en) | Folding type suspended mobile hydraulic support equipment | |
| CN103552572A (en) | Mobile vehicle-ride bridge | |
| CN202897366U (en) | Oil drill joint production line electric induction furnace material lifting mechanism | |
| CN203781602U (en) | Tank bearing and stabilizing device with link mechanism and supporting protection platform | |
| CN204847400U (en) | Various steel sheet automation conveyer for stack | |
| CN204211152U (en) | A conveyer is rolled in a kind of lifting | |
| CN2780704Y (en) | Stable cage chair device of cage lifting well | |
| CN105059993A (en) | Automatic color plate stacking machine | |
| CN201891424U (en) | Hydraulic support with support adjusting jack | |
| CN205352717U (en) | Bogie static test platform guide rail lifts and lifts mechanism in step | |
| CN210659924U (en) | Base device of petroleum well-repairing robot | |
| CN103552947B (en) | A kind of Foldable hydraulic support upending frame | |
| CN103708370B (en) | The pneumatic lift rope supporting device of mining inclined tunnel | |
| CN204603919U (en) | For the auxiliary feeding device of large pipe cutting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |