CN104322352B - A kind of mao bamboon felling circular fixture being easy to operate - Google Patents

A kind of mao bamboon felling circular fixture being easy to operate Download PDF

Info

Publication number
CN104322352B
CN104322352B CN201410670498.2A CN201410670498A CN104322352B CN 104322352 B CN104322352 B CN 104322352B CN 201410670498 A CN201410670498 A CN 201410670498A CN 104322352 B CN104322352 B CN 104322352B
Authority
CN
China
Prior art keywords
anchor ear
compressing tablet
mao bamboon
stud
top compressing
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.)
Active
Application number
CN201410670498.2A
Other languages
Chinese (zh)
Other versions
CN104322352A (en
Inventor
刘军
钱俊
章锐
蔡书平
卢书琴
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
Xuancheng Power Supply Co of State Grid Anhui Electric Power Co Ltd
Jingxian Power Supply Co of State Grid Anhui Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Xuancheng Power Supply Co of State Grid Anhui Electric Power Co Ltd
Jingxian Power Supply Co of State Grid Anhui 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, Xuancheng Power Supply Co of State Grid Anhui Electric Power Co Ltd, Jingxian Power Supply Co of State Grid Anhui Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201410670498.2A priority Critical patent/CN104322352B/en
Publication of CN104322352A publication Critical patent/CN104322352A/en
Application granted granted Critical
Publication of CN104322352B publication Critical patent/CN104322352B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00Forestry
    • A01G23/02Transplanting, uprooting, felling or delimbing trees
    • A01G23/099Auxiliary devices, e.g. felling wedges

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Clamps And Clips (AREA)

Abstract

The present invention relates to a kind of mao bamboon felling circular fixture being easy to operate, be applicable to mao bamboon tool design field.It anchor ear comprising top compressing tablet and be located on the band opening pushing up compressing tablet periphery, anchor ear can be opened to enclose cover mao bamboon from described opening, described opening passes through locking device connecting sealed to lock anchor ear, the side of top compressing tablet is for pushing up dabbing bamboo, the opposite side of top compressing tablet is connected with stud along the radial direction of anchor ear, stud runs through anchor ear towards the axis direction away from anchor ear, anchor ear is provided with threaded block, threaded block coupling is set in stud, and stud rotates to drive top compressing tablet to move around along the radial direction of anchor ear relative to threaded block.This easy to carry, dismounting of mao bamboon felling circular fixture being easy to operate is quick, utilizes this device to encircle clamping mao bamboon, can prevent mao bamboon from blowing line attendant of injuring, thus avoids mao bamboon to burst performing fighting the generation of casualty accident.

Description

A kind of mao bamboon felling circular fixture being easy to operate
Technical field
The present invention relates to a kind of mao bamboon felling circular fixture being easy to operate, be applicable to mao bamboon tool design field.
Background technology
Jingxian County is positioned at Wannan mountainous area, grows mao bamboon in flakes within the border, brings very big hidden danger to the safe and stable operation of electrical network; Each line walking, need cut down a large amount of mao bamboon, when mao bamboon falls down, easily bursts out, thus line attendant of injuring, there is mao bamboon and blow casualty accident.
Felling mao bamboon is the important content that circuit is removed obstacles, and is directly connected to the safe and stable operation of electrical network.Mao bamboon bursts that performing fighting hurts sb.'s feelings causes shade at heart to line attendant, and in order to the personal safety of line attendant, we need to prevent mao bamboon from bursting and perform fighting the accident of hurting sb.'s feelings to occur.
In conventional art, generally make to carry out mao bamboon felling with a chainsaw.But this method exists two shortcomings: one is that electric saw carries inconvenience in the place of mountain Gao Linmi, two do not have reliable power supply when being work.In addition, wear a mask, wear thick clothes after carry out mao bamboon felling, though can effectively prevent mao bamboon from blowing, people be damaged, but this method inefficiency, waste time and energy.
Therefore, need the mao bamboon felling circular fixture designing a kind of handled easily, thus the efficiency of cutting down mao bamboon can be ensured, can effectively prevent mao bamboon from blowing simultaneously and people is damaged.
Summary of the invention
For the problems referred to above, the object of this invention is to provide the mao bamboon felling circular fixture that a kind of easy to carry, dismounting is easy to operate efficiently, for encircling clamping mao bamboon, preventing mao bamboon from blowing line attendant of injuring, avoiding that mao bamboon occurs and bursting the accident of performing fighting and hurting sb.'s feelings.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of mao bamboon felling circular fixture being easy to operate, comprise top compressing tablet and the anchor ear being located on the band opening pushing up compressing tablet periphery, the axis parallel of anchor ear is in top compressing tablet, anchor ear can be opened to enclose cover mao bamboon from described opening, described opening passes through locking device connecting sealed to lock anchor ear, the side of top compressing tablet is for pushing up dabbing bamboo, the opposite side of top compressing tablet is connected with stud along the radial direction of anchor ear, stud runs through anchor ear towards the axis direction away from anchor ear, anchor ear is provided with threaded block, threaded block coupling is set in stud, stud rotates to drive top compressing tablet to move around along the radial direction of anchor ear relative to threaded block.
Wherein, the opposite side of described top compressing tablet is outward extended with guide pillar, anchor ear is provided with the guide hole matched with guide pillar, and guide pillar is arranged in guide hole and is moving radially the rotation in process to limit top compressing tablet.
Wherein, described threaded block is installed in anchor ear rotationally, and stud is fixedly connected on top compressing tablet, rotates threaded block and makes stud move around along the radial direction of anchor ear and drive top compressing tablet.
Wherein, described threaded block is fixedly arranged on anchor ear, and stud clamping is rotationally installed on top compressing tablet, rotates stud and makes stud move around along the radial direction of anchor ear and drive top compressing tablet.
Wherein, the end of the free end of described stud is connected with turning handle.
Wherein, described locking device is snib, and described anchor ear comprises the semicircle hoop plate of two rigidity, and one end of the semicircle hoop plate of described two rigidity is articulated and connected, and the other end forms described opening, and described opening is worn by snib and connects to lock anchor ear.
Wherein, described anchor ear is flexible band, and described locking device comprises the buckle being arranged on described band one end and the hole clipping being arranged on the described band other end, and buckle wears hole clipping and is fastened to lock anchor ear.
Wherein, described top compressing tablet is the top compressing tablet of minor arc shape, and described stud is arranged at the side of the top compressing tablet outwardly convex of described minor arc shape.
Wherein, described top compressing tablet is evenly equipped with bur for the side of pushing up dabbing bamboo.
Wherein, described anchor ear and described top compressing tablet are evenly equipped with bur for the side that the side of pushing up dabbing bamboo is just right.
The beneficial effect of the invention:
A kind of mao bamboon felling circular fixture being easy to operate of the invention, anchor ear is utilized to enclose cover mao bamboon, and by regulating the top compressing tablet be bolted on anchor ear, top compressing tablet is made to hold out against in mao bamboon, thus coordinate anchor ear to encircle clamping mao bamboon, line attendant of injuring is blown to prevent mao bamboon, effectively avoid mao bamboon to burst performing fighting the generation of the accident of hurting sb.'s feelings, this device is held out against by threaded adjusting, can provide enough pressures, guarantee that device is reliable and stable, anchor ear is locked by locking device, and dismounting is quick, easy to use, device volume is small and exquisite, is convenient for carrying.
Accompanying drawing explanation
Accompanying drawing is utilized to be described further innovation and creation, but the embodiment in accompanying drawing does not form any restriction to the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.
Fig. 1 is a kind of structural representation being easy to the embodiment 1 of the mao bamboon felling circular fixture operated of the invention.
Fig. 2 is a kind of structural representation being easy to the embodiment 3 of the mao bamboon felling circular fixture operated of the invention.
Reference numeral:
1-anchor ear, 10-binds round plate,
2-pushes up compressing tablet,
3-stud, 30-turning handle,
4-threaded block,
5-guide pillar,
6-guide hole,
7-snib.
Embodiment
With the following Examples the invention is further described.
Embodiment 1
The a kind of of the invention is easy to one of mao bamboon felling circular fixture embodiment operated, and as shown in Figure 1, comprises top compressing tablet 2 and is located on the anchor ear 1 pushing up compressing tablet 2 periphery, and wherein, the axis parallel of anchor ear 1 is in top compressing tablet 2.
Anchor ear 1 is specifically made up of the semicircle hoop plate 10 of two rigidity, one end of the semicircle hoop plate 10 of two rigidity is articulated and connected, the other end forms an opening, and anchor ear 1 can be opened to enclose cover mao bamboon from described opening, and described opening wears connection two by snib 7 and binds round the free end of plate 10 to lock anchor ear 1.
As can be seen, top compressing tablet 2 is the top compressing tablet 2 of minor arc shape, the medial surface of top compressing tablet 2 is used for coordinating to push up to press with anchor ear 1 clamping mao bamboon, in order to increase the compactness coordinated between its with mao bamboon, and anti-locking apparatus enclose to be enclosed within mao bamboon after loose shift, at top compressing tablet 2, bur can be set for the medial surface pushing up dabbing bamboo, thus increase the frictional force between top compressing tablet 2 and mao bamboon, promote the compression effect of top compressing tablet 2 pairs of mao bamboons.Preferably, with top compressing tablet 2, same bur can be set at anchor ear 1 for the side that the medial surface that pushes up dabbing bamboo is just right, coordinate with top compressing tablet 2, thus realize the frictional force from comprehensive raising device and mao bamboon.
The lateral surface of top compressing tablet 2 outwardly convex of this minor arc shape is connected with stud 3, stud 3 runs through anchor ear 1 along the radial direction of anchor ear 1 outward towards the axis direction away from anchor ear 1, on the other hand, anchor ear 1 is provided with the threaded block 4 mated with stud 3 screw thread, threaded block 4 coupling is sleeved on stud 3, stud 3 can be made by making stud 3 and threaded block 4 produce to move around along the radial direction of anchor ear 1 relative to rotating, and drive top compressing tablet 2 to move around along the radial direction of anchor ear 1 simultaneously, realize the adjustment of top compressing tablet 2.
Concrete adjustment structure is, threaded block 4 is fixedly mounted on anchor ear 1, and stud 3 then clamping is rotationally installed on top compressing tablet 2, for convenience of rotating, turning handle 30 can be set in the end of the free end of stud 3, turning handle 30, makes stud 3 rotate, because threaded block 4 is fixing, namely there is not rotational motion in threaded block 4, can moving radially along anchor ear 1 while stud 3 rotates in threaded block 4, and drive top compressing tablet 2 to move, realize regulating.In addition, rotate with stud 3 while with stud 3 radially movement to prevent top compressing tablet 2, can to stretch out a guide pillar 5 at the lateral surface of outwardly convex of top compressing tablet 2, correspondingly, anchor ear 1 arranges a guide hole 6 matched with guide pillar 5, guide pillar 5 is arranged in guide hole 6 and rotates moving radially in process to limit top compressing tablet 2, keeps stable and moves smoothly.
During use, take off snib 7, open anchor ear 1 from the opening of anchor ear 1, and enclose and be enclosed within mao bamboon, again plug snib 7, locking anchor ear 1, rotate turning handle 30, drive top compressing tablet 2 to be close to mao bamboon along the radial direction of anchor ear 1 and move, and finally hold out against mao bamboon, anchor ear 1 coordinates to encircle clamp mao bamboon with top compressing tablet 2, blows to prevent mao bamboon.
Embodiment 2
A kind of mao bamboon felling circular fixture embodiment two being easy to operate of the invention, the difference of the present embodiment and embodiment 1 is, anchor ear 1 adopts flexible band, described band is similar to general belt, its one end is provided with buckle, its other end is provided with the hole clipping be interlocked with described buckle, by being wrapped on mao bamboon by band, then wearing hole clipping with buckle and is fastened to lock band.Similar to Example 1, band is installed with threaded block 4, stud 3 is equipped with in threaded block 4, in band, have top compressing tablet 2 to be connected to stud 3, its principle is identical with embodiment 1 scheme, just the anchor ear 1 of rigidity is replaced to flexible band, the main technical schemes of the present embodiment is identical with embodiment 1, unaccounted feature in the present embodiment, adopts the explanation in embodiment 1, no longer repeats at this.
Embodiment 3
A kind of mao bamboon felling circular fixture embodiment three being easy to operate of the invention, as shown in Figure 2, the main technical schemes of the present embodiment is identical with embodiment 1, in the present embodiment unaccounted feature, adopt the explanation in embodiment 1, no longer repeat at this.The difference of the present embodiment and embodiment 1 is, threaded block 4 is installed on anchor ear 1 rotationally, and stud 3 is then be fixedly connected on top compressing tablet 2.When regulating top compressing tablet 2, rotate threaded block 4, stud 3 is moved around along the radial direction of anchor ear 1 in threaded block 4, and now there is not rotational motion in stud 3, because stud 3 is fixedly connected with top compressing tablet 2, therefore stud 3 back and forth as the crow flies movement be to drive top compressing tablet 2 synchronizing moving in the lump.Owing to itself not needing to rotate when stud 3 moves, the turning handle 30 on it can be cancelled.
Embodiment 4
A kind of mao bamboon felling circular fixture embodiment four being easy to operate of the invention, the main technical schemes of the present embodiment is identical with embodiment 3, the difference of the present embodiment and embodiment 3 is, anchor ear 1 adopts flexible band, described band is similar to general belt, and its one end is provided with buckle, and its other end is provided with the hole clipping be interlocked with described buckle, by band is wrapped on mao bamboon, then wears hole clipping with buckle and be fastened to lock band.Similar to Example 3, band is installed with threaded block 4 rotationally, stud 3 is equipped with in threaded block 4, in band, there is top compressing tablet 2 to be connected to stud 3, its use principle is identical with the scheme of embodiment 3, just the anchor ear 1 of rigidity in embodiment 3 is replaced to flexible band, unaccounted feature in the present embodiment, adopt the explanation in embodiment 3, no longer repeat at this.
Finally should be noted that; above embodiment is only in order to illustrate the technical scheme of the invention; but not the restriction to the invention protection domain; although done to explain to the invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical scheme of the invention or equivalent replacement, and not depart from essence and the scope of the invention technical scheme.

Claims (10)

1. one kind is easy to the mao bamboon felling circular fixture of operation, it is characterized in that: comprise top compressing tablet and the anchor ear being located on the band opening pushing up compressing tablet periphery, anchor ear can be opened to enclose cover mao bamboon from described opening, described opening passes through locking device connecting sealed to lock anchor ear, the side of top compressing tablet is for pushing up dabbing bamboo, the opposite side of top compressing tablet is connected with stud along the radial direction of anchor ear, stud runs through anchor ear towards the axis direction away from anchor ear, anchor ear is provided with threaded block, threaded block coupling is set in stud, stud rotates to drive top compressing tablet to move around along the radial direction of anchor ear relative to threaded block.
2. a kind of mao bamboon felling circular fixture being easy to operate according to claim 1, it is characterized in that: the opposite side of described top compressing tablet is outward extended with guide pillar, anchor ear is provided with the guide hole matched with guide pillar, guide pillar is arranged in guide hole and is moving radially the rotation in process to limit top compressing tablet.
3. a kind of mao bamboon felling circular fixture being easy to operate according to claim 1, it is characterized in that: described threaded block is installed in anchor ear rotationally, stud is fixedly connected on top compressing tablet, rotates threaded block and makes stud move around along the radial direction of anchor ear and drive top compressing tablet.
4. a kind of mao bamboon felling circular fixture being easy to operate according to claim 1, it is characterized in that: described threaded block is fixedly arranged on anchor ear, stud clamping is rotationally installed on top compressing tablet, rotates stud and makes stud move around along the radial direction of anchor ear and drive top compressing tablet.
5. a kind of mao bamboon felling circular fixture being easy to operate according to claim 4, is characterized in that: the end of the free end of described stud is connected with turning handle.
6. a kind of mao bamboon felling circular fixture being easy to operate according to any one of claim 1 to 4, it is characterized in that: described locking device is snib, described anchor ear comprises the semicircle hoop plate of two rigidity, one end of the semicircle hoop plate of described two rigidity is articulated and connected, the other end forms described opening, and described opening is worn by snib and connects to lock anchor ear.
7. a kind of mao bamboon felling circular fixture being easy to operate according to any one of claim 1 to 4, it is characterized in that: described anchor ear is flexible band, described locking device comprises the buckle being arranged on described band one end and the hole clipping being arranged on the described band other end, and buckle wears hole clipping and is fastened to lock anchor ear.
8. a kind of mao bamboon felling circular fixture being easy to operate according to claim 1, it is characterized in that: described top compressing tablet is the top compressing tablet of minor arc shape, described stud is arranged at the side of the top compressing tablet outwardly convex of described minor arc shape.
9. a kind of mao bamboon felling circular fixture being easy to operate according to claim 1, is characterized in that: described top compressing tablet is evenly equipped with bur for the side of pushing up dabbing bamboo.
10. a kind of mao bamboon felling circular fixture being easy to operate according to claim 9, is characterized in that: described anchor ear and described top compressing tablet are evenly equipped with bur for the side that the side of pushing up dabbing bamboo is just right.
CN201410670498.2A 2014-11-20 2014-11-20 A kind of mao bamboon felling circular fixture being easy to operate Active CN104322352B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410670498.2A CN104322352B (en) 2014-11-20 2014-11-20 A kind of mao bamboon felling circular fixture being easy to operate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410670498.2A CN104322352B (en) 2014-11-20 2014-11-20 A kind of mao bamboon felling circular fixture being easy to operate

Publications (2)

Publication Number Publication Date
CN104322352A CN104322352A (en) 2015-02-04
CN104322352B true CN104322352B (en) 2016-04-13

Family

ID=52397282

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410670498.2A Active CN104322352B (en) 2014-11-20 2014-11-20 A kind of mao bamboon felling circular fixture being easy to operate

Country Status (1)

Country Link
CN (1) CN104322352B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104813901B (en) * 2015-05-18 2017-08-04 湖州吴兴威国机械厂 A kind of ring support meanss
CN107900712A (en) * 2017-12-05 2018-04-13 肖叶 A kind of automobile ring-shaped work pieces processing fixing device
CN109049239B (en) * 2018-07-12 2023-09-01 浙江农林大学暨阳学院 Whole bamboo fiber opening machine and fiber opening method thereof
CN109717046A (en) * 2019-03-15 2019-05-07 国网福建省电力有限公司福州供电公司 A kind of tree bamboo felling device
CN111244645A (en) * 2020-02-27 2020-06-05 徐州华显凯星信息科技有限公司 Ground wire connecting clamp holder for power plant
CN113814915B (en) * 2020-06-18 2022-11-04 中国航发商用航空发动机有限责任公司 Fixing clamp, assembly component and assembly method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579754A (en) * 1969-04-01 1971-05-25 Hans Oetiker Compression band
CN201426290Y (en) * 2009-04-08 2010-03-24 杨涵 Newly-planted tree fixer
CN203505206U (en) * 2013-09-26 2014-04-02 国家电网公司 Pulling tool for tree cutting
CN203538012U (en) * 2013-10-08 2014-04-16 江苏瑞青园林建设工程有限公司 Tree clamping transplantation device
CN204244841U (en) * 2014-11-20 2015-04-08 国家电网公司 A kind of mao bamboon felling circular fixture being easy to operate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0122191D0 (en) * 2001-09-14 2001-10-31 Steadman William D Securing arrangement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579754A (en) * 1969-04-01 1971-05-25 Hans Oetiker Compression band
CN201426290Y (en) * 2009-04-08 2010-03-24 杨涵 Newly-planted tree fixer
CN203505206U (en) * 2013-09-26 2014-04-02 国家电网公司 Pulling tool for tree cutting
CN203538012U (en) * 2013-10-08 2014-04-16 江苏瑞青园林建设工程有限公司 Tree clamping transplantation device
CN204244841U (en) * 2014-11-20 2015-04-08 国家电网公司 A kind of mao bamboon felling circular fixture being easy to operate

Also Published As

Publication number Publication date
CN104322352A (en) 2015-02-04

Similar Documents

Publication Publication Date Title
CN104322352B (en) A kind of mao bamboon felling circular fixture being easy to operate
CN204244841U (en) A kind of mao bamboon felling circular fixture being easy to operate
EP3462518A3 (en) Backpack tool system and backpack power supply apparatus thereof
CN108565791A (en) A kind of overhead insulation line apparatus for peeling off
CN206791081U (en) Angle regulator and Gao Zhiju
CN206091923U (en) Ware is prevented falling by pumping wellhead packing box gland
CN106655015A (en) Novel cable stripping knife
CN203555225U (en) Underground coal mine wireless positioning safety helmet
CN208970242U (en) A kind of multi-cable device for peeling simultaneously
CN207415545U (en) A kind of notebook computer shell part waste material punching jig
CN107953295B (en) The stripping off device of rubber wheel on a kind of printer paper-sheets rolling wheel
CN105014710A (en) Cutting device for removing surplus rubber on surfaces of semirings
CN212859353U (en) Appliance falling prevention device applied to maintenance process
CN205085462U (en) Rotation type pipe cutting machine
CN205148396U (en) Get rid of cutting device of unnecessary rubber in semi -ring surface
CN204796169U (en) Knife head angle adjustable lawn mower
CN106988598A (en) Line bar rectifier
CN208579032U (en) A kind of novel positioning lathe dog built for electromechanical installation of modular
CN205727209U (en) A kind of greening arbor prunes structure
CN207418061U (en) Safety belt quickly retracting and tension device
CN110476638A (en) The saw of a kind of Gao Zhiju and branch removes method
CN205410991U (en) Nut cracker
CN206641040U (en) A kind of fruit-tree girdling knife
CN201230613Y (en) Safety cap
CN201440973U (en) Safety helmet with illumination device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Liu Jun

Inventor after: Qian Jun

Inventor after: Zhang Rui

Inventor after: Cai Shuping

Inventor after: Lu Shuqin

Inventor before: Liu Jun

Inventor before: Qian Jun

Inventor before: Zhang Rui

Inventor before: Cai Shuping

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: LIU JUN QIAN JUN ZHANG RUI CAI SHUPING TO: LIU JUN QIAN JUN ZHANG RUI CAI SHUPING LU SHUQIN

C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant