CN206629379U - A kind of plough - Google Patents
A kind of plough Download PDFInfo
- Publication number
- CN206629379U CN206629379U CN201720199151.3U CN201720199151U CN206629379U CN 206629379 U CN206629379 U CN 206629379U CN 201720199151 U CN201720199151 U CN 201720199151U CN 206629379 U CN206629379 U CN 206629379U
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- CN
- China
- Prior art keywords
- arm
- plowshoe
- mouldboard
- hole
- plough
- 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
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- Soil Working Implements (AREA)
Abstract
The utility model discloses a kind of plough, hand lever including main plough body and for pulling main plough body, main plough body includes plow standard, plowshoe arm and roller, and the ploughshare for cutting upturned soil is used for hack with the rear end for being connected to ploughshare, the mouldboard digged, and the preceding surface of ploughshare and the preceding surface of mouldboard form the warping surface of plow bottom, plow standard is connected in a manner of the adjustable warping surface of plow bottom is relative to the angle of upturned soil with hand lever, the one end of plow standard is connected on plowshoe arm, plowshoe arm is installed on the rear surface of ploughshare and mouldboard, or it is installed on the rear surface of mouldboard, and plowshoe arm is connected in a manner of adjustable roller is relative to the angle of upturned soil with roller, and the warping surface of plow bottom is oppositely arranged with the roller.Compared with prior art, it is connected plow standard in a manner of it can adjust the warping surface of plow bottom with respect to upturned soil angle with hand lever, therefore the warping surface of plow bottom can be adjusted and be cut into upturned soil progress hack to preferable angle and dig by user, it is time saving and energy saving.
Description
Technical field
Agriculture apparatus field is the utility model is related to, more specifically to a kind of plough.
Background technology
Plough is a kind of farm implements in arable land, and it is used to crush upturned soil and plough out groove to think that sowing is ready, generally plough
Drawn using livestock or motor vehicle, also have and be operated using manpower.In actual use, the angle of penetration of ploughshare
Generally require to be adjusted flexibly according to the situation of upturned soil, but its flexibility ratio is poor after the fixed installation of existing ploughshare and adjusts
It is inconvenient.
Utility model content
The purpose of this utility model is to provide a kind of a kind of plough that can adjust warping surface of plow bottom angle of penetration.
To reach above-mentioned purpose, solution of the present utility model is：
A kind of plough, including main plough body and the hand lever for pulling the main plough body, the main plough body include plow standard,
Plowshoe arm and roller, and the mouldboard that the ploughshare for cutting upturned soil is used for hack, digged with the rear end for being connected to the ploughshare,
And the preceding surface of the ploughshare and the preceding surface of the mouldboard form the warping surface of plow bottom, the plow standard is with the adjustable warping surface of plow bottom
Mode relative to the angle of upturned soil is connected with the hand lever, and the one end of the plow standard is connected on the plowshoe arm,
The plowshoe arm is installed on the rear surface of ploughshare and the mouldboard, or is installed on the rear surface of the mouldboard, and the plowshoe arm
It is connected in a manner of it can adjust the roller relative to the angle of upturned soil with the roller, and the warping surface of plow bottom and the rolling
Wheel is oppositely arranged.
Offered respectively on the lower end of the hand lever and the free end of the plow standard corresponding first time mounting hole and
The first corresponding upper installing hole passes through first time corresponding mounting hole with the first adjustment hole, the hand lever and the plow standard
The first bolt being adapted and the first nut screw lock of interior setting together, first adjustment hole and first upper installing hole
The second bolt that can be moved along the footpath length direction of first adjustment hole is inside provided with, second bolt is equipped with mutually fits with it
The second nut matched somebody with somebody.
The path length of first adjustment hole is more than the path length of first upper installing hole；First adjustment hole is along the plough
The width of post extends and is in arc-shaped, or first adjustment hole is by the first positioning hole that several are in that arc-shaped arranges
Composition.
The plowshoe arm is removably installed on the rear surface of the ploughshare and the mouldboard, the ploughshare and institute
State mouldboard to be integrally formed, the rear surface of the ploughshare is provided with the fixed cover fixed for the plowshoe arm, the rear surface of the mouldboard
Lug is provided with corresponding to the both sides of the plowshoe arm, the bottom of the plowshoe arm offers the first through hole penetrated for locking part,
Pass through the lug for connecting the same side and the lock between the plowshoe arm and the integrally formed mouldboard and the ploughshare
The mounting rod of firmware and it is assembled together with the installation nut of its screw lock.
The plowshoe arm is removably installed on the rear surface of the mouldboard, and the ploughshare and the mouldboard are removable
Connection is unloaded, the rear surface of the mouldboard is provided with the fixed cover fixed for the plowshoe arm, and the rear surface of the mouldboard corresponds to institute
The both sides for stating plowshoe arm are provided with lug, and the bottom of the plowshoe arm offers the second through hole penetrated for locking part, the plowshoe
By connecting installation of the lug of the same side with the mounting rod of the locking part and with its screw lock between arm and the mouldboard
Nut is assembled together.
The plowshoe arm extends the rear surface with the mouldboard corresponding to the junction of the plow standard and the plowshoe arm
The support arm abutted against.
The both sides of the plowshoe arm are respectively equipped with connector, and the roller is between two connectors；
The second corresponding upper installing hole is offered respectively on the plowshoe arm and two connectors, and it is corresponding
Offered respectively on second adjustment hole and two second time mounting holes, the roller and two connectors corresponding roller hole and
Two the 3rd mounting holes, the plowshoe arm and the roller pass through the 3rd bolt that is set in corresponding second upper installing hole
The 4th bolt and the 4th that the 3rd mounting hole of cooperation and the corresponding roller hole and two with the 3rd nut arranges
Nut cooperates together, and the aperture in the roller hole is more than the diameter of the 4th bolt；Second adjustment hole
Be provided with two second time mounting hole can along the 5th bolt that moved close to the plow standard or away from the plow standard direction,
5th bolt is equipped with the 5th matched nut.
The path length of second adjustment hole is more than the path length of second time mounting hole；Second adjustment hole is along close
The direction of the plow standard or the remote plow standard extends and is in arc-shaped, or second adjustment hole is in arc-shaped by several
The second positioning hole composition of arrangement.
The longitudinal cross-section of the plow standard is in J fonts or L fonts.
The plow standard and the plowshoe arm are integrally formed.
After said structure, the utility model has the advantages that：
(1), it is connected plow standard in a manner of it can adjust the warping surface of plow bottom with respect to upturned soil angle with hand lever, therefore is made
User, which can be adjusted the warping surface of plow bottom, to be cut into upturned soil progress hack to preferable angle and digs, time saving and energy saving.
(2), it is connected plowshoe arm in a manner of angle of the adjustable roller with respect to upturned soil with plowshoe arm, therefore user
Roller can be adjusted to the preferred angle relative to upturned soil, to realize that roller swimmingly rolls, master is pulled so as to reach user
Labour-saving purpose during plough body.
(3) the rear surface of mouldboard and ploughshare, is removably installed on by plowshoe arm, or is installed on mouldboard
Surface afterwards, therefore the warping surface of plow bottom can be changed after using breakage, without plowshoe arm, ploughshare and mouldboard are all replaced, one
Determine degree and avoid waste of material.
(4), by the lug of mouldboard and the locking part that is set on plowshoe arm, and lug and locking part be fixedly connected on
The mounting rod and installation nut being adapted together, can strengthen the steadiness that mouldboard and ploughshare are connected with plowshoe arm, and can prevent
Only ploughshare and mouldboard separate plough with plowshoe arm when in use or mouldboard separates with plowshoe arm.
(5), by extending the support arm abutted against with the rear surface of mouldboard on plowshoe arm, it is bent that this support arm plays support plough body
The effect in face, further to consolidate the warping surface of plow bottom.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of main plough body in the utility model.
Fig. 3 is another angled arrangement schematic diagram of main plough body in the utility model.
In figure：
1- hand lever 11- utensil receiving openings
121- the first bolt 3- plow standards
32- the first adjustment hole the second bolts of 321-
4- plowshoe arm 41- support arms
The nuts of the 3rd bolt 422- of 421- the 3rd
451- first through hole the second adjustment holes of 47-
The nuts of the 5th bolt 472- of 471- the 5th
The bolts of 5- rollers 511- the 4th
The nut 6- warping surfaces of plow bottom of 512- the 4th
61- ploughshare 611- fixed covers
62- mouldboard 621- lugs
6211- lugs hole 71- stators
72- mounting rods 721- installs nut
73- connection sheets
Embodiment
In order to which the technical solution of the utility model is explained further, the utility model is entered below by specific embodiment
Row elaborates.
A kind of plough, as Figure 1-3, including hand lever 1 and main plough body, main plough body include plow standard 3, plowshoe arm 4, rolling
Wheel 5 and ploughshare 61, mouldboard 62.
Hand lever 1 is used to pull main plough body to move forward.
The longitudinal cross-section of plow standard 3 is in J fonts or L fonts.
Mouldboard 62 is connected to the rearward end of ploughshare 61, and ploughshare 61 and mouldboard 62 are integrally formed or removably connected
Together, for the one side of the direction of advance of direction plough as preceding surface, another side is rear surface when being worked using ploughshare 61 and mouldboard 62.And
The preceding surface of ploughshare 61 and mouldboard 62 forms the warping surface of plow bottom 6, and the warping surface of plow bottom 6 is used to cut soil, hack and digged.
For convenience of description, using the orientation of plough normal use as reference direction.
Plow standard 3 is connected in a manner of the adjustable warping surface of plow bottom 6 is with angle between upturned soil with hand lever 1, the lower end of plow standard 3
Portion is connected on plowshoe arm 4, and plowshoe arm 4 is removably installed on the rear surface of ploughshare 61 and mouldboard 62 or is installed on
The rear surface of mouldboard 62, this plowshoe arm 4 play a part of support, the fixed warping surface of plow bottom 6；And plowshoe arm 4 corresponds to this plow standard 3
The junction of bottom and plowshoe arm 4 extend support arm 41, the rear surface of support arm 41 and mouldboard 62 abuts against, and plays support and ploughs
The effect of body curved surface 6；Also, plowshoe arm 4 is connected in a manner of adjustable roller 5 is with angle between upturned soil with roller 5.Its
In, the warping surface of plow bottom 6 and 5 corresponding setting of roller.
Embodiment one
In the present embodiment, ploughshare 61 is integrally formed with mouldboard 62, and the upper end of plowshoe arm 4 is installed on ploughshare 61 and mouldboard
62 rear surface.For convenience of description, integrally formed ploughshare 61 is referred to as the part that plows with mouldboard 62 in following.
The lower end of hand lever 1 offers the utensil receiving opening 11 being inserted in for the free end of plow standard 3, in the both sides shape of this utensil receiving opening 11
Into two connection walls, first time corresponding mounting hole (totally three is offered respectively on the upper end of this two connection walls and plow standard 3
First time mounting hole), and the first corresponding upper installing hole (totally two the first upper installing holes) and the first adjustment hole 32, wherein
Width of first adjustment hole 32 along plow standard 3 extends and is in arc-shaped, and the path length of the first adjustment hole 32 is more than two first
The path length of upper installing hole, the first bolt 121 and the first nut being adapted, hand lever 1 are equipped on three first time mounting holes
Locked together with plow standard 3 by the cooperation of the first bolt 121 and the first nut and three first time mounting holes.First adjustment hole
32 and two the first upper installing holes in be equipped with the second bolt 321 and the second nut being adapted, the second bolt 321 is not with
Two nuts can move when being locked along the footpath length direction of the first adjustment hole 32, to adjust the angle between hand lever 1 and plow standard 3
Degree, due to using when plow standard 3 be installed together with plowshoe arm 4, ploughshare 61, mouldboard 62, therefore plow standard 3 is relative to hand lever 1
Angulation change can also change angle of the warping surface of plow bottom 6 relative to upturned soil, in order to which user can be incited somebody to action with time saving and energy saving angle
The warping surface of plow bottom 6, which is inserted into upturned soil, to be carried out cutting soil, hack and digs.
In the present embodiment, plowshoe arm 4 is in triangular shape, and the bottom of plow standard 3 is connected to plowshoe arm 4 close to the one of plow standard 3
On side, and above-mentioned support arm 41 is located at the upper side edge of plowshoe arm 4 and abutted against with the rear surface of mouldboard 62；The rear surface of ploughshare 61 is set
There is fixed cover 611, plowshoe arm 4 has the installation portion in tip-angled shape corresponding with fixed cover 611, plowshoe arm 4 and the above-mentioned part that plows
Installation is fixed by the cooperation of installation portion and fixed cover 621.
In the present embodiment, plowshoe arm 4 can also square-shaped or trapezoidal shape etc. other can match with the rear surface for the part that plows
Close the shape of support.
Meanwhile further to strengthen the steadiness that plowshoe arm 4 is connected with the part that plows, prevent that plough from plowing part when in use
Separate with plowshoe arm 4, while can be changed at any time when the part that plows is for a long time using breakage, plow and set between part and plowshoe arm 4
There is robust structure.This robust structure is：The both sides that the rear surface of mouldboard 62 corresponds to plowshoe arm 4 are respectively arranged with lug 621, and two
Lug hole 6211 is offered on lug 621 respectively, the bottom of the side wall of plowshoe arm 4 offers the first through hole penetrated for locking part
451, locking part is stator 71 in the present embodiment, and its both ends is respectively positioned at plough after this stator 71 penetrates first through hole 451
The both sides of trailing arm 4, and the both ends of stator 71 offer the fixing hole corresponding with the lug of the same side 621 respectively, it is fixed
It is connected respectively by the lug hole 6211 and fixing hole of the same side with the both ends of mounting rod 72 between piece and two lugs 621 and is fastened on one
Rise.For expansion, the lower end of mounting rod 72 be provided with can with the screw thread together with the installation screw lock of nut 721, mounting rod 72 it is upper
End bending is in hook solid, can be linked up with lug hole 6211.
Further, the attachment structure of roller 5 and plowshoe arm 4 is：The both sides of plowshoe arm 4 are respectively equipped with corresponding connection
Part, two connectors are used to link together on plowshoe arm 4 and roller, and two connectors are connection sheet 73 in the present embodiment, and
Roller 5 is provided between two connectors.
(totally three specifically, the second upper installing hole that the bottom of plowshoe arm 4 is corresponding with being offered respectively in two connection sheets 73
Individual second upper installing hole), and the second corresponding adjustment hole 47 and second time mounting hole (totally two second time mounting holes), three
Provided with the 3rd bolt 421 and matched the 3rd nut 422 for carrying out screw lock in individual second upper installing hole, pass through the 3rd bolt
421 and the 3rd nut 422 screw lock, plowshoe arm 4 and the upper end of two connection sheets 73 can be fixed together.Roller 5 and two
Offer corresponding roller hole and the 3rd mounting hole (supplying two the 3rd mounting holes) in connection sheet 73 respectively, roller hole and two the
The 4th bolt 511 and the 4th nut 512 being adapted are equipped in three mounting holes, passes through the 4th bolt 511 and the 4th nut 512
Screw lock roller 5 and the lower end of two connection sheets 73 can be linked together, wherein the aperture in roller hole be more than bolt diameter, and
Gap is left between the connection sheet 73 of the roller 5 and two assembling connection sheet 73 of rear roller 5 and two, in order to which roller 5 is around the 4th bolt 511
Rotate.Second adjustment hole 47 is along close to the direction of plow standard 3 with the junction of plowshoe arm 4 or away from plow standard 3 and the junction of plowshoe arm 4
Direction extends and is in arc-shaped, and the path length of the second adjustment hole 47 is more than the path length of second time mounting hole, the He of the second adjustment hole 47
It is equipped with the 5th bolt 471 and the 5th nut 472 being adapted in two second time mounting holes, the 5th bolt 471 is not with the 5th
Nut 472 can be moved during screw lock along the footpath length direction of the second adjustment hole 47, to adjust roller 5 relative to plowshoe arm 4
Angle, after plow standard 3 and hand lever 1 assemble, roller 5 relative to the angulation change of plowshoe arm 4 can also change roller 5 and upturned soil it
Between angle, i.e., the angle that roller 5 rolls relative to upturned soil.
Embodiment two
The present embodiment and the difference of embodiment one are：Ploughshare 61 is detachably connected in the usual way with mouldboard 62.
Specifically, plowshoe arm 4 is removably installed on the rear surface of mouldboard 61, fixed cover is arranged at mouldboard 61
Surface afterwards.
Wherein, ploughshare 61 is used to cut upturned soil, and mouldboard 62 is used for hack, digged.
Embodiment three
The present embodiment and the difference of embodiment one, two are：First adjustment hole 32 is by several semicircular arc arrangements
First positioning hole is formed, and the second adjustment hole 47 is made up of the second positioning hole of several semicircular arc arrangements.
Specifically, by two relatively the first upper installing hole it is corresponding with one in each first positioning hole respectively, so as to
Change angle of the plow standard 3 relative to hand lever 1, screw lock is then carried out by the second bolt 321 and the second nut.Second adjustment hole
47 also adopt and change angle of the roller 5 relative to plowshoe arm 4, therefore not reinflated narration in the present embodiment in a like fashion.
In use, user holds hand lever 1, main plough body is placed along ploughshare 61 in face of the direction of user, and user draws
Start pull bar make ploughshare 61 preceding surface cut upturned soil in, so as to main plough body start working.Wherein, user can be according to upturned soil
The angle post-tensioning that actual conditions regulate everywhere is started pull bar 1.
In the utility model, plow standard 3 and plowshoe arm 4 are integrally formed.
In the utility model, ploughshare 61 can use shape common in the art, such as in V-shape.Mouldboard 62 is adopted
With shape common in the art, preferably mouldboard 62 is to close to the extension of the direction of the side of plow standard 3.
It the foregoing is only the preferred embodiment of the present embodiment, all equalizations done with the utility model claims scope
Change and modification, all should belong to right of the present utility model.
Claims (10)
1. a kind of plough, including main plough body and the hand lever for pulling the main plough body, the main plough body includes plow standard, plough
Trailing arm and roller, and the mouldboard that the ploughshare for cutting upturned soil is used for hack, digged with the rear end for being connected to the ploughshare, and
The preceding surface of the ploughshare forms the warping surface of plow bottom with the preceding surface of the mouldboard, it is characterised in that：The plow standard is with adjustable institute
State the warping surface of plow bottom relative to the mode of the angle of upturned soil with the hand lever to be connected, the one end of the plow standard is connected to described
On plowshoe arm, the plowshoe arm is installed on the rear surface of ploughshare and the mouldboard, or is installed on the rear surface of the mouldboard, and institute
Plowshoe arm is stated in a manner of it can adjust the roller relative to the angle of upturned soil with the roller to be connected, and the warping surface of plow bottom
It is oppositely arranged with the roller.
A kind of 2. plough according to claim 1, it is characterised in that：Oneself of the lower end of the hand lever and the plow standard
By first time corresponding mounting hole and the first corresponding upper installing hole and the first adjustment hole, the hand are offered on end respectively
Pull bar and the plow standard pass through the first bolt being adapted and the first nut screw lock that are set in first time corresponding mounting hole
Together, it is provided with and can be moved along the footpath length direction of first adjustment hole in first adjustment hole and first upper installing hole
The second dynamic bolt, second bolt are equipped with the second matched nut.
A kind of 3. plough according to claim 2, it is characterised in that：The path length of first adjustment hole is more than described the
The path length of one upper installing hole；Width of first adjustment hole along the plow standard extends and is in arc-shaped, or described
One adjustment hole is made up of several in the first positioning hole of arc-shaped arrangement.
A kind of 4. plough according to claim 1, it is characterised in that：The plowshoe arm is removably installed on
The rear surface of the ploughshare and the mouldboard, the ploughshare are integrally formed with the mouldboard, and the rear surface of the ploughshare, which is provided with, to be supplied
The fixed cover that the plowshoe arm is fixed, the rear surface of the mouldboard are provided with lug, the plough corresponding to the both sides of the plowshoe arm
The bottom of trailing arm offers the first through hole penetrated for locking part, the plowshoe arm and the integrally formed mouldboard and the plough
It is assemblied between ploughshare by connecting the lug of the same side with the mounting rod of the locking part and with the installation nut of its screw lock
Together.
A kind of 5. plough according to claim 1, it is characterised in that：The plowshoe arm is removably installed on
The rear surface of the mouldboard, the ploughshare are detachably connected with the mouldboard, and the rear surface of the mouldboard, which is provided with, supplies the plowshoe
The fixed cover that arm is fixed, the both sides that the rear surface of the mouldboard corresponds to the plowshoe arm are provided with lug, under the plowshoe arm
Portion offers the second through hole penetrated for locking part, by connecting the described convex of the same side between the plowshoe arm and the mouldboard
Ear is assembled together with the mounting rod of the locking part and with the installation nut of its screw lock.
A kind of 6. plough according to claim 4 or 5, it is characterised in that：The plowshoe arm correspond to the plow standard with
Extend the support arm abutted against with the rear surface of the mouldboard in the junction of the plowshoe arm.
A kind of 7. plough according to claim 1, it is characterised in that：The both sides of the plowshoe arm are respectively equipped with connection
Part, and the roller is between two connectors；
The second corresponding upper installing hole, and corresponding second are offered on the plowshoe arm and two connectors respectively
Corresponding roller hole and two are offered on adjustment hole and two second time mounting holes, the roller and two connectors respectively
Three mounting holes, the plowshoe arm and the roller pass through the 3rd bolt set in corresponding second upper installing hole and
The 4th bolt and the 4th nut that the cooperation of three nuts and the corresponding roller hole and two the 3rd mounting holes arrange
Cooperate together, and the aperture in the roller hole be more than the 4th bolt diameter；Second adjustment hole and two
Being provided with second time mounting hole can be described along the 5th bolt moved close to the plow standard or away from the plow standard direction
5th bolt is equipped with the 5th matched nut.
A kind of 8. plough according to claim 7, it is characterised in that：The path length of second adjustment hole is more than described the
The path length of two times mounting holes；Second adjustment hole extends along the direction along the close plow standard or the remote plow standard and is in circle
Arcuation, or second adjustment hole are made up of several second positioning holes arranged in arc-shaped.
9. according to a kind of plough described in claim 1,2 or 7 any one, it is characterised in that：The longitudinal cross-section of the plow standard
In J fonts or L fonts.
10. according to a kind of plough described in claim 1,4,5 or 7 any one, it is characterised in that：The plow standard and the plough
Trailing arm is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720199151.3U CN206629379U (en) | 2017-03-02 | 2017-03-02 | A kind of plough |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720199151.3U CN206629379U (en) | 2017-03-02 | 2017-03-02 | A kind of plough |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206629379U true CN206629379U (en) | 2017-11-14 |
Family
ID=60251789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720199151.3U Expired - Fee Related CN206629379U (en) | 2017-03-02 | 2017-03-02 | A kind of plough |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206629379U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166355A (en) * | 2018-01-24 | 2018-06-15 | 苏州堆绿云科技有限公司 | Plastic cement race track, which paves, uses claw |
| CN111295940A (en) * | 2020-03-10 | 2020-06-19 | 昆山巨元升机械设计有限公司 | A kind of plow |
-
2017
- 2017-03-02 CN CN201720199151.3U patent/CN206629379U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166355A (en) * | 2018-01-24 | 2018-06-15 | 苏州堆绿云科技有限公司 | Plastic cement race track, which paves, uses claw |
| CN111295940A (en) * | 2020-03-10 | 2020-06-19 | 昆山巨元升机械设计有限公司 | A kind of plow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 Termination date: 20190302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |