CN104909292B - A kind of barrow - Google Patents

A kind of barrow Download PDF

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Publication number
CN104909292B
CN104909292B CN201510343126.3A CN201510343126A CN104909292B CN 104909292 B CN104909292 B CN 104909292B CN 201510343126 A CN201510343126 A CN 201510343126A CN 104909292 B CN104909292 B CN 104909292B
Authority
CN
China
Prior art keywords
cross bar
movable case
barrow
locking
equipment
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
Application number
CN201510343126.3A
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Chinese (zh)
Other versions
CN104909292A (en
Inventor
杨文林
石维民
王海妍
华睿
郎宁
曹普刚
崔友德
沈孝春
周明顺
赵学虎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201510343126.3A priority Critical patent/CN104909292B/en
Publication of CN104909292A publication Critical patent/CN104909292A/en
Application granted granted Critical
Publication of CN104909292B publication Critical patent/CN104909292B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00Portable or mobile lifting or hauling appliances

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Loading Or Unloading Of Vehicles (AREA)

Abstract

The present invention relates to a kind of barrow, it includes spaced two support frames and installed in two support frame tops and the cross bar that is slidably matched with support frame, movable case is slidably fitted with cross bar, the bottom of movable case is connected with chain block, sliding drive mechanism for driving it to slide and the location locking mechanism for being located on cross bar are installed, two support frames are crane and the bottom of support frame is provided with universal wheel on movable case.Simple structure of the present invention, time saving and energy saving, can be to heavy equipment in limited space the carry strap of operation carry out great convenience.

Description

A kind of barrow
Technical field
The present invention relates to handbarrow field, especially a kind of barrow being adapted in narrow space carrying heavy goods.
Background technology
In field of power distribution, the own wt of each power supplying and distributing equipment is all very heavy, and such as transformer or distribution board etc. are, it is necessary to use Crane etc. is carried to the kind equipment.And in switchgear house, space is limited, crane cannot be introduced into, and staff can only pass through Manpower lifts to installation site equipment.Obviously, the labour intensity of a dead lift is big, inefficiency and there is potential safety hazard.Mesh Before to have carried out using plate pusher etc. and push carrying, but, equipment to transfer and equipment are unloaded from go-cart in go-cart when, There is still a need for multiple person cooperational first lifts equipment put down again, period still consumes substantial amounts of labour, operation cause high effort for and Potential safety hazard is still suffered from, in addition, being typically provided with step in switchgear house, the travel distance of go-cart can be caused limited, it is impossible to reach Suitable installation site.
The content of the invention
The technical problem to be solved in the present invention be to provide a kind of simple structure, operate it is time saving and energy saving, can be in limited space The interior carry strap to heavy equipment carrys out the barrow of great convenience.
In order to solve the above technical problems, barrow of the invention is structurally characterized in that including spaced two support frames With installed in two support frame tops and with the cross bar that support frame is slidably matched, movable case, movable case are slidably fitted with cross bar Bottom be connected with chain block, be provided with movable case for drive its slide sliding drive mechanism and for being located Location locking mechanism on cross bar, two support frames are crane and the bottom of support frame is provided with universal wheel.
Using said structure, it is possible to resolve the problem in the case of three kinds, the first situation:When needing equipment from haulage vehicle On when unloading, now, support frame is supportted high, the whole support body of movement so that cross bar across in the top of vehicle tray, using pulling Cucurbit slings equipment, when equipment and vehicle tray depart from, movable support body or haulage vehicle drives away, and now equipment is quilt Hang on chain block and equipment has certain altitude apart from ground, can now move whole support body and equipment is transplanted directly on peace Holding position;Because now equipment has certain altitude apart from ground, center of gravity is too high, in order to ensure safety, now can also manipulator Draw cucurbit that equipment is transferred into ground proximity so that center of gravity reduction, position is then carried out again and is moved;Due to now chain block Chain sling can transfer very long, occur when moving and significantly rock, in order to be further ensured that safety, now can also elder generation manipulator Draw cucurbit to put on the ground equipment, then turn down the height of support frame, recycle chain block again to hang equipment afterwards Rise, center of gravity now is low and chain sling of chain block is not in significantly to rock, and the process of moving can be more steady;Equipment needs Operating process when operation during entrucking is with above-mentioned unloading is opposite.Second situation:When there is the obstacle that cannot be bypassed in road surface front During thing, now two support frames are one in front and one in back walked, and when near barrier, first operate chain block to transfer to ground by equipment Face, by the reach of whole support body, first makes way for the support frame of front portion across barrier, then operates chain block that equipment is sling simultaneously The height of barrier is increased above, whole support body reach is promoted, while driving movable case to slide into using sliding drive mechanism Cross bar is anterior, and now equipment is, across barrier, then to operate chain block that equipment is transferred into ground again, will be located at rear portion Support frame clears the jumps, so as to completely pass through the transfer operation of obstacle.The third situation:When there is step in path front, with The process for passing through barrier is similar to, and now two support frames are one in front and one in back walked, and when near step, first operation chain block will Equipment transfers to ground, and whole support body is pushed forward, and the height for being located at the support frame in front is turned down, the branch that this is turned down Support is supportted on the ground of uppermost steps, and then movable case is slided into the rear portion of cross bar, and equipment is sling using chain block And raise so that then the height of equipment promotes whole support body to move forward, while using cunning just above the ground of uppermost steps Dynamic drive mechanism drives movable case to slide into cross bar front portion, until equipment is advanced on the ground of uppermost steps, then operates Equipment is transferred to ground by chain block, so as to complete the transfer operation of equipment top bar.
It can be seen that, using structure of the invention unique, can complete it is various in the case of equipment transfer operation, it is not necessary to by Large-scale Hoisting equipment and excessive labour need not be expended, staff need to only complete three kinds of operations, that is, operate chain block, control Movable case processed is slided and pushes whole support body movement, and three kinds of operations are very laborsaving, and labour intensity is low, and a people can be complete Into.Simultaneously as whole frame structure is simple, compact is convenient to be used in narrow space.In addition, each position can be square Just adjust and be readily disassembled, it is flexible and convenient to use.
The sliding drive mechanism includes being rotatably installed in the rotating roller of mobile upper box part, is offered on the cylinder of rotating roller The annular groove being adapted with cross bar, wherein one end of rotating roller roll shaft is provided with the first ratchet spanner.Annular groove and cross bar Cylindrical shape be adapted, the first ratchet spanner drive rotating roller rotate, so as to drive whole movable case laterally to be moved on cross bar It is dynamic, simple structure, rapid operation.
The location locking mechanism includes being set in Dong Grains processed on cross bar and on movable case and can be by Dong Grains processed The braking and locking bolt of compression.Dong Grains processed are compressed using clamping screw to hold tightly on cross bar, so as to whole movable case be positioned at On cross bar.
The dynamic Grains of system includes two semi-circular hoop plates that top is mounted on mobile chamber interior wall, the bottom of each semi-circular hoop plate End is all connected with one piece of pressure strip, and correspondence offers through hole on two pressure strips, and the braking and locking bolt is rotatably installed in movable case Wherein side plate on, braking and locking bolt passes through two through hole, and the other end of braking and locking bolt is provided with locking nut, mobile The block for limiting locking nut rotation is provided with case.Coordinated using locking nut and braking and locking bolt and press Dong Grains processed Tightly, Dong Grains processed in the form of two and Ban Huan Xing Grains plates, realize conveniently by simple structure.
The second ratchet spanner is set with the braking and locking bolt.Control for brake is carried out also with ratchet spanner, is borrowed Help the reversion lock function of ratchet spanner, it is ensured that the reliability of braking and easy to operate.
Support frame as described above include positioned at top and be slidably matched with cross bar sliding sleeve, be fixed in sliding sleeve bottom and in inverted V-shaped Two supporting legs of arrangement, the bottom of every supporting leg is respectively mounted a universal wheel.Supported using inverted V-shaped, it is ensured that support Steadiness.The supporting leg includes the sleeve pipe being fixed on sliding sleeve and the expansion link for being inserted into casing shoe, sleeve pipe and expansion link Between be provided for the telescopic locking mechanism of both relative positions of locking.The structure coordinated using sleeve pipe and expansion link realizes height Regulation, simple structure is easy to operate, and the cross bar clamping screw for locking cross bar position is provided with sliding sleeve.Cross bar locking screw Bolt is used for the relative position of retention bar and sliding sleeve.
The telescopic locking mechanism includes the two sleeve pipe location holes, the interval that are opened in the two opposite side walls of sleeve bottom It is opened in multiple expansion link location holes on expansion link top and can be installed in sleeve pipe location hole and fixed with one of expansion link Position hole installs the inserting pin of cooperation.Coordinated using inserting pin and location hole, the extension elongation of expansion link is positioned, so that lock support The height of leg, simple structure, reliability highly easy to adjust.
In sum, simple structure of the present invention, operate it is time saving and energy saving, can in limited space to heavy equipment carrying Bring great convenience.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description:
Fig. 1 is structural representation of the invention;
Fig. 2 is the structural representation of movable case in the present invention;
Fig. 3 is the cross section structure diagram of line A-A in Fig. 2;
Fig. 4 is the structural representation of one of Ban Huan Xing Grains plates in the present invention;
Fig. 5 is the right side structural representation of Fig. 4;
Fig. 6 is the right side structural representation of Fig. 1;
Fig. 7 is the B portions mplifying structure schematic diagram in Fig. 6;
Fig. 8 is the cross section structure diagram of line C-C in Fig. 7.
Specific embodiment
Referring to the drawings, the barrow include spaced two support frames 2 and installed in two tops of support frame 2 and with The cross bar 1 that support frame 2 is slidably matched, two support frames 2 are crane and the bottom of support frame 2 is provided with universal wheel 5.Cross bar Movable case 3 is slidably fitted with 1, the bottom of movable case 3 is connected with chain block 4, is provided with movable case 3 for driving it to slide Dynamic sliding drive mechanism and the location locking mechanism for being located on cross bar 1, sliding drive mechanism includes rotating pacifies Mounted in the rotating roller 31 on the top of movable case 3, the annular groove 310 being adapted with cross bar 1 is offered on the cylinder of rotating roller 31, turned Wherein one end of dynamic roller roll shaft is provided with the first ratchet spanner 32.Two ends of rotating roller roll shaft are rotated by bearing connect respectively It is connected on two side walls of movable case 3, because whole movable case 3 is hung on cross bar by rotating roller 31, rotating roller 31 needs to hold By the pulling force of radial direction, therefore, Selection of Bearings load-taking capacity needle bearing high.The cylinder shape of annular groove 310 and cross bar 1 Shape is adapted, and the first ratchet spanner 32 drives rotating roller 31 to rotate, so as to drive whole movable case transverse shifting on cross bar.It is fixed Position locking mechanism includes the Dong Grains 33 processed that are set on cross bar 1 and on movable case 3 and the system that can compress Dong Grains 33 processed Dynamic clamping screw 34.Dong Grains 33 processed include two semi-circular hoop plates 331 of the top on the inwall of movable case 3, each semi-circular The bottom for binding round plate 331 is all connected with one piece of pressure strip 332, and correspondence offers through hole 3320, the braking and locking on two pressure strips 332 Bolt 34 is rotatably installed on the wherein side plate of movable case 3, and braking and locking bolt 34 passes through two through hole 3320, braking and locking spiral shell The other end of bolt 34 is provided with locking nut 35, movable case 3 block 36 being provided with for limiting the rotation of locking nut 35.Profit Dong Grains 44 processed are compressed with braking and locking bolt 34 to hold tightly on cross bar 1, so as to whole movable case 3 is positioned on cross bar 1.Braking The second ratchet spanner 37 is set with clamping screw 34.Control for brake is carried out also with ratchet spanner, by ratchet spanner Reversion lock function, it is ensured that the reliability of braking and easy to operate.
Referring to the drawings, support frame 2 include positioned at top and be slidably matched with cross bar 1 sliding sleeve 21, be fixed in the bottom of sliding sleeve 21 End and two supporting legs 22 arranged in inverted V-shaped, the bottom of every supporting leg 22 is respectively mounted a universal wheel 5.Using inverted V-shaped knot Structure is supported, it is ensured that the steadiness of support.Cross bar clamping screw 211 for locking the position of cross bar 1 is installed on sliding sleeve 21.It is horizontal Rod locking bolt 211 is used for the relative position of retention bar 1 and sliding sleeve 21.
Referring to the drawings, supporting leg 22 includes the sleeve pipe 221 being fixed on sliding sleeve 21 and is inserted into the flexible of the bottom of sleeve pipe 221 Bar 222, is provided for the telescopic locking mechanism of both relative positions of locking between sleeve pipe 221 and expansion link 222.Using sleeve pipe 221 realize that height is adjusted with the structure that expansion link 222 coordinates, and simple structure is easy to operate, is provided with for locking on sliding sleeve 21 The cross bar clamping screw 211 of the position of cross bar 1.Cross bar clamping screw 211 is used to position the relative position of horizontal 1 bar and sliding sleeve 21.Its In, telescopic locking mechanism includes two sleeve pipe location holes 2210 being opened in the two opposite side walls of the bottom of sleeve pipe 221, is spaced apart It is located at multiple expansion link location holes 2220 on the top of expansion link 222 and can be installed in sleeve pipe location hole and flexible with one of them Bar location hole 2220 installs the inserting pin 23 of cooperation.Coordinated with location hole using pin 23 is inserted, position expansion link 222 stretches out length Degree, so that the height of lock support leg 22, simple structure, reliability highly easy to adjust.
Present invention mainly solves the problem in the case of three kinds, the first situation:When needing that equipment is unloaded from haulage vehicle When lower, now, support frame 2 is supportted into height, the whole support body of movement so that cross bar 1 across in the top of vehicle tray, using pulling calabash Reed 4 slings equipment, when equipment and vehicle tray depart from, movable support body or haulage vehicle drives away, and now equipment is quilt Hang on chain block 4 and equipment has certain altitude apart from ground, can now move whole support body and be transplanted directly on equipment Installation site;Because now equipment has certain altitude apart from ground, center of gravity is too high, in order to ensure safety, can also now operate Equipment is transferred to ground proximity by chain block 4 so that center of gravity reduction, position is then carried out again and is moved;Due to now pulling calabash The chain sling of reed 4 can transfer very long, occur when moving and significantly rock, in order to be further ensured that safety, now can also be first Operation chain block 4 puts on the ground equipment, then turns down the height of support frame 2, recycles chain block 4 again afterwards Equipment is sling, center of gravity now is low and chain sling of chain block 4 is not in significantly to rock, and the process of moving can more put down Surely;Operating process when operation when equipment needs entrucking is with above-mentioned unloading is opposite.Second situation:Having in front of road surface cannot During the barrier for bypassing, now two support frames are one in front and one in back walked, and when near barrier, first operate chain block 4 to set It is standby to transfer to ground, by the reach of whole support body, the support frame of front portion is first made way for across barrier, then operate chain block 4 Equipment is sling and the height of barrier is increased above, whole support body reach is promoted, while being driven using sliding drive mechanism Movable case 3 slides into the front portion of cross bar 1, and now equipment is, across barrier, then to operate chain block 4 to transfer to ground by equipment again Face, the support frame for being located at rear portion is cleared the jumps, so as to completely pass through the transfer operation of obstacle.The third situation:Work as path Similar with the process for passing through barrier when there is step in front, now two support frames are one in front and one in back walked, when near step, First equipment is transferred to ground by operation chain block 4, and whole support body is pushed forward, and will be located at the height of the support frame in front Turn down, the support frame turned down is supportted on the ground of uppermost steps, then movable case 3 is slided into the rear portion of cross bar 1, utilize Equipment is sling and raised by chain block 4 so that then the height of equipment promotes whole just above the ground of uppermost steps Support body moves forward, while drive movable case 3 to slide into the front portion of cross bar 1 using sliding drive mechanism, until equipment is advanced to the superiors On the ground of step, then operate chain block 4 that equipment is transferred into ground, so as to complete the transfer operation of equipment top bar. In above-mentioned action, during chain block 4 is lifted by crane and whole support body during movement, it is necessary to operate the second ratchet Spanner 37 locks the position of movable case 4, and the mobile control of movable case 3 is completed by operating the first ratchet spanner 32.
It can be seen that, using structure of the invention unique, can complete it is various in the case of equipment transfer operation, it is not necessary to by Large-scale Hoisting equipment and excessive labour need not be expended, staff need to only complete three kinds of operations, that is, operate chain block, control Movable case processed is slided and pushes whole support body movement, and three kinds of operations are very laborsaving, and labour intensity is low, and a people can be complete Into.Simultaneously as whole frame structure is simple, compact is convenient to be used in narrow space.In addition, each position can be square Just adjust and be readily disassembled, it is flexible and convenient to use.
In sum, the invention is not restricted to above-mentioned specific embodiment.Those skilled in the art, it is of the invention not departing from On the premise of spirit and scope, some changes and modification can be done.Protection scope of the present invention should be with claim of the invention It is defined.

Claims (7)

1. a kind of barrow, it is characterized in that including spaced two support frames(2)With installed in two support frames(2)Top And and support frame(2)The cross bar being slidably matched(1), cross bar(1)On be slidably fitted with movable case(3), movable case(3)Bottom connect It is connected to chain block(4), movable case(3)On be provided with for drive its slide sliding drive mechanism and for being located at Cross bar(1)On location locking mechanism, two support frames(2)It is crane and support frame(2)Bottom universal wheel is installed (5);The location locking mechanism includes being set in cross bar(1)On Dong Grains processed(33)With installed in movable case(3)It is upper and can be by Dong Grains processed(33)The braking and locking bolt of compression(34);The Dong Grains processed(33)Movable case is mounted in including top(3)On inwall Two semi-circular hoop plates(331), each semi-circular hoop plate(331)Bottom be all connected with one piece of pressure strip(332), two pressure strips (332)Upper correspondence offers through hole(3320), the braking and locking bolt(34)It is rotatably installed in movable case(3)Wherein side On plate, braking and locking bolt(34)Through two through hole(3320), braking and locking bolt(34)The other end locking nut is installed (35), movable case(3)Inside it is provided with for limiting locking nut(35)The block of rotation(36).
2. barrow as claimed in claim 1, it is characterized in that the sliding drive mechanism includes being rotatably installed in movable case(3) The rotating roller on top(31), rotating roller(31)Cylinder on offer and cross bar(1)Adaptable annular groove(310), rotate Wherein one end of roller roll shaft is provided with the first ratchet spanner(32).
3. barrow as claimed in claim 1, it is characterized in that the braking and locking bolt(34)On be set with the second ratchet wrench Hand(37).
4. barrow as claimed in claim 1, it is characterized in that support frame as described above includes being located at top and and cross bar(1)Slip is matched somebody with somebody The sliding sleeve of conjunction(21), be fixed in sliding sleeve(21)Bottom and two supporting legs arranged in inverted V-shaped(22), every supporting leg(22)'s Bottom is respectively mounted a universal wheel(5).
5. barrow as claimed in claim 4, it is characterized in that the sliding sleeve(21)On be provided with for locking cross bar(1)Position Cross bar clamping screw(211).
6. barrow as claimed in claim 4, it is characterized in that the supporting leg(22)Including being fixed in sliding sleeve(21)On set Pipe(221)Be inserted into sleeve pipe(221)The expansion link of bottom(222), sleeve pipe(221)With expansion link(222)Between be provided for The telescopic locking mechanism of both locking relative positions.
7. barrow as claimed in claim 6, it is characterized in that the telescopic locking mechanism includes being opened in sleeve pipe(221)Bottom Two opposite side walls on two sleeve pipe location holes(2210), interval be opened in expansion link(222)Multiple expansion links on top are determined Position hole(2220)With can be installed in sleeve pipe location hole and with one of expansion link location hole(2220)Install the inserting of cooperation Pin(23).
CN201510343126.3A 2015-06-19 2015-06-19 A kind of barrow Expired - Fee Related CN104909292B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510343126.3A CN104909292B (en) 2015-06-19 2015-06-19 A kind of barrow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510343126.3A CN104909292B (en) 2015-06-19 2015-06-19 A kind of barrow

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CN104909292A CN104909292A (en) 2015-09-16
CN104909292B true CN104909292B (en) 2017-05-31

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105236289A (en) * 2015-10-12 2016-01-13 湖北三江航天红阳机电有限公司 Lifting device
CN112408224A (en) * 2020-11-19 2021-02-26 中国南方电网有限责任公司超高压输电公司柳州局 Power grid overhauls with hank mill reserve stay cord stress rod recovery unit
CN114476964A (en) * 2021-12-08 2022-05-13 深圳市水务工程检测有限公司 Device for assisting in carrying heavy objects in limited space

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE533337C2 (en) * 2008-08-25 2010-08-31 Itt Mfg Enterprises Inc Mobile lifting device
KR20100089210A (en) * 2009-02-03 2010-08-12 성균관대학교산학협력단 Multipurpose lift device for move style
CN202322177U (en) * 2011-11-22 2012-07-11 山东电力集团公司淄博供电公司 Portable carrier for heavy electrical equipment
CN202379645U (en) * 2011-12-22 2012-08-15 湖南省湘中制药有限公司 Pharmacy-dedicated light hoist gantry
CN102530754B (en) * 2011-12-31 2014-11-26 凯盛重工有限公司 Haulage winch
CN203033703U (en) * 2012-11-30 2013-07-03 中国石油天然气股份有限公司 Detachable assembly type lifting appliance
CN203699781U (en) * 2013-12-05 2014-07-09 重庆戈林物流有限责任公司 Movable bracket for hanging hoist crane
CN204281169U (en) * 2014-12-01 2015-04-22 国网山东省电力公司潍坊供电公司 Simple detachable electric power lifting device
CN204689512U (en) * 2015-06-19 2015-10-07 国网山东省电力公司潍坊供电公司 A kind of barrow

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Inventor after: Yang Wenlin

Inventor after: Zhou Mingshun

Inventor after: Zhao Xuehu

Inventor after: Liu Zhen

Inventor after: Shi Weimin

Inventor after: Wang Haiyan

Inventor after: Hua Rui

Inventor after: Lang Ning

Inventor after: Cao Pugang

Inventor after: Cui Youde

Inventor after: Shen Xiaochun

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Inventor before: Zhao Xuehu

Inventor before: Shi Weimin

Inventor before: Wang Haiyan

Inventor before: Hua Rui

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CF01 Termination of patent right due to non-payment of annual fee