CN106120837A - A kind of positioning tool for pre-embedded bolt group to connecting - Google Patents
A kind of positioning tool for pre-embedded bolt group to connecting Download PDFInfo
- Publication number
- CN106120837A CN106120837A CN201610501169.4A CN201610501169A CN106120837A CN 106120837 A CN106120837 A CN 106120837A CN 201610501169 A CN201610501169 A CN 201610501169A CN 106120837 A CN106120837 A CN 106120837A
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- Prior art keywords
- proofreading board
- bolt
- embedded bolt
- proofreading
- board
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of positioning tool for pre-embedded bolt group to connecting, including a bearing, the sidewall that two rectangle steelframes are relative is from top to bottom sequentially provided with two row's support bars, upper proofreading board, lower proofreading board are correspondingly placed on two row's support bars respectively, upper proofreading board has hole on multiple, lower proofreading board has the lower opening that multiple and upper hole is concentric.Lower proofreading board is held in place on the support bar of lower row, by the thread segment of multiple pre-embedded bolts being sequentially passed through corresponding lower opening on lower proofreading board, then upper proofreading board is held in place on the support bar of upper row, and the thread segment of pre-embedded bolt runs through hole, by nut, pre-embedded bolt is fixed on upper proofreading board, the supporting section part of pre-embedded bolt is the most unsettled, multiple pre-embedded bolts utilize the gravity of self to make it ensure the perpendicularity of in the vertical direction, to facilitate staff to utilize reinforcing bar that multiple pre-embedded bolts are grouping connection, it is allowed to form a bolt assembly.
Description
Technical field
The present invention relates to the realm of building construction, be specifically related to a kind of positioning tool for pre-embedded bolt group to connecting.
Background technology
Steel-structure factory building possesses following characteristics, 1, dead load light: refer to steel construction light.In same span, equally
Load under, steel construction is more light than reinforced concrete structure, thus also allow for transport and install.2, reliability is higher (relatively
In other structure)；It is 3, easy to manufacture, easy for installation: the material used by steel construction merely and is to become a useful person, and processes easier,
And can use mechanically actuated, the most substantial amounts of steel construction is usually and makes component, degree of accuracy at specialized hardware
Higher, with then needing formwork erection during armored concrete, prick muscle etc..The welding that is connected by of steel construction connects with bolt, in a short time
The engineering used.4, short construction period: the mechanization manufactured due to steel structure member, automaticity is high, and assembling speed
Hurry up, therefore speed of application is fast, and the cycle is short, can shorten time of completion compared with the Factory Building using reinforced concrete structure.
The construction technology of steel-structure factory building includes pre-embedded bolt → (steel construction processing system in the construction line-putting → base concrete
Make) portal-rigid frames lifting → crane girder installation → steel girder erection → roof truss, roof boarding and eaves board installation → shingle nail installation →
Steel structure coating.And in base concrete in pre-embedded bolt step, it is many that steel column pre-embedded bolt installs kind, such as M27, M30,
M33, M39, M42, M56, the substance of pre-embedded bolt is relatively big, wherein M27 substance be 4Kg, M56 substance be 27Kg, in turn result in steel
It is big that the pre-embedded bolt of structure workshop installs total amount；And in prior art in the short column of basis, multiple pre-embedded bolts are transported to install
Position needs to expend substantial amounts of man-hour and manpower, and the working strength of man-handling of materials is big, and then causes the installation of pre-embedded bolt
Efficiency is substantially reduced.
Summary of the invention
Present invention aim at providing a kind of positioning tool for pre-embedded bolt group to connecting, quickly realize multiple bolt
Group is to connection, and bolt group is to degree of accuracy when connecting simultaneously.
The present invention is achieved through the following technical solutions:
A kind of positioning tool for pre-embedded bolt group to connecting, including the supporting being configured to by two rectangle steels being oppositely arranged
Seat, is from top to bottom sequentially provided with two row's support bars, upper proofreading board, lower proofreading board on the sidewall that two described rectangle steelframes are relative
Be correspondingly placed at respectively on two row's support bars, upper proofreading board have hole on multiple, lower proofreading board has multiple with on
The lower opening that hole is concentric.Connection is referred to be welded together by multiple pre-embedded bolts by reinforcing bar by the group of multiple pre-embedded bolts, is formed
With the basis bolt group structure that matches of short column, will multiple bolt uniform weldings inside two minor faces of rectangular frame on,
Wherein pre-embedded bolt includes supporting section and thread segment, and rectangular frame is then welded on supporting section, to facilitate the peace of pre-embedded bolt
It is filled with and the connection of bolt and steel column；And when welding, the pre-embedded bolt weight of monomer is big, when mobile, workload is big, and
And multiple pre-embedded bolt is when welding side by side, it is necessary to assure position is in the homogeneity of the pre-embedded bolt with row, right with guarantee group
After bolt in the short column of basis, keep correct station, improve steel column and the stability of steel-structure factory building.
Concrete group is as follows to connection procedure: be held in place on the support bar of lower row by lower proofreading board, by by multiple
The thread segment of pre-embedded bolt sequentially pass through corresponding lower opening on lower proofreading board, then upper proofreading board is held in place
On the support bar of row, and the thread segment of pre-embedded bolt runs through hole, now by nut, pre-embedded bolt is fixed on upper proofreading board
On, the supporting section part of pre-embedded bolt is the most unsettled, and multiple pre-embedded bolts utilize the gravity of self to make it ensure at vertical direction
On perpendicularity, to facilitate staff to utilize reinforcing bar that multiple pre-embedded bolts are grouping connection, be allowed to form a bolt
Assembly.After connection is completed by multiple bolt groups, after taking off nut, successively by upper proofreading board and lower proofreading board from rectangle steelframe
Take out so that bolt assembly falls on ground, is now removed by two rectangle steelframes, then facilitate quickly turning of bolt assembly
Fortune.
Bottom described rectangle steelframe, have chute, and described rectangle steelframe is arranged on guide rail by slide.Square
Shaped steel frame itself has certain weight, and i.e. after connection is terminated by bolt group, the difficulty of mobile rectangle steelframe is relatively big, therefore exists
The bottom of rectangle steelframe has chute, and is provided with guide rail on the ground, by chute on guide rail slidably so that square
Shaped steel frame quickly moves, to facilitate the transhipment of bolt assembly.
Described support bar includes central shaft, is arranged with roller on described central shaft, axially opens along it on roller inwall
Limited location groove, is provided with the projection coordinated with stopper slot on central shaft outer wall.In bolt group to connection procedure, need bolt is entered
Row is finely tuned definitely, and now bolt is fixed on upper proofreading board by nut, runs through lower opening simultaneously, and upper proofreading board then passes through
On the gravity of the bolt tightly row's of being fitted in support bar, the mobile relative difficulty of himself, lower proofreading board is then set in bolt
On, the supporting section to bolt can be realized by mobile lower proofreading board and be simultaneously on the direction being perpendicular to horizontal plane with thread segment,
To ensure that the bolt assembly of molding maintains the rectangular configuration of its standard, make it to agree with completely with basis short column.During regulation, mobile
Lower proofreading board so that roller relatively rotates around central shaft, and has stopper slot at roller inwall, central shaft is provided with spacing
The projection of slot fit, the end face at stopper slot two ends is two extreme positions that projection rotates, it is to avoid the most mobile artificial lower school
Plate causes upper proofreading board deviation occur with the most corresponding position of lower proofreading board, i.e. ensures that upper proofreading board is at lower proofreading board
On projection overlap with lower proofreading board completely.
Described stopper slot is minor arc arcuate groove.As preferably, stopper slot arc length shared by roller inner peripheral wall is bad
Arc, i.e. stopper slot are minor arc arcuate groove, and proofreading board is when mobile instantly, and minor arc arcuate groove can ensure the moving range of lower proofreading board
Being confined in a less scope, inclining occurs in the position of supporting section with its thread segment in the vertical direction to prevent bolt
Tiltedly, prevent the nut at proofreading board from being lost its effect fastened by radial stress.
The aperture in described upper hole is more than the aperture of described lower opening.As preferably, outside the aperture in upper hole is with the thread segment of bolt
Footpath is identical, and the aperture in upper hole is set greater than the aperture of lower opening, while the thread segment facilitating bolt quickly runs through, also
The sensitivity during regulation of bolt support section can be reduced, i.e. avoid just causing tilt bolt during proofreading board under slight movement.
Gap length between width and two rectangle steelframes of described upper proofreading board is identical.Further, upper proofreading board
Can be completely fixed in the supporting and space of row's support bar and two rectangle steelframe two side formation, i.e. ensure that multiple bolt
Produce after being fixed on by nut on proofreading board and rock, and then ensure in bolt group accuracy when connecting.
The width of described lower proofreading board is less than the gap length between two rectangle steelframes.As preferably, lower proofreading board is put
Put in the supporting and space of lower row's support bar and two rectangle steelframe two side formation, and when bolt is finely adjusted, need
Debug from the multiple directions of lower proofreading board so that the supporting section of bolt and thread segment remain the shape being perpendicular to horizontal plane
State.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, lower proofreading board is held in place on the support bar of lower row by the present invention, by being depended on by the thread segment of multiple pre-embedded bolts
Secondary then upper proofreading board is held in place on the support bar of upper row through corresponding lower opening on lower proofreading board, and pre-buried
The thread segment of bolt runs through hole, is fixed on upper proofreading board by pre-embedded bolt now by nut, and the support of pre-embedded bolt
Section part is the most unsettled, and multiple pre-embedded bolts utilize the gravity of self to make it ensure the perpendicularity of in the vertical direction, to facilitate work
Utilize reinforcing bar that multiple pre-embedded bolts are grouping connection as personnel, be allowed to form a bolt assembly；
2, the present invention is when regulation, mobile lower proofreading board so that roller relatively rotates around central shaft, and has limit at roller inwall
Position groove, central shaft is provided with the projection coordinated with stopper slot, and the end face at stopper slot two ends is two limit that projection rotates
Position, it is to avoid the most excessive position appearance moving lower proofreading board and cause proofreading board the most corresponding with lower proofreading board is inclined
Difference, i.e. ensures that upper proofreading board projection on lower proofreading board overlaps with lower proofreading board completely；
3, in the present invention, lower proofreading board is placed on the supporting and space of lower row's support bar and two rectangle steelframe two side formation, and
When bolt is finely adjusted, the multiple directions from lower proofreading board are needed to debug so that the supporting section of bolt and thread segment
Remain the state being perpendicular to horizontal plane.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes of the application
Point, it is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is present configuration schematic diagram；
Fig. 2 is the structural representation of support bar；
Fig. 3 is that group is to the bolt assembly after connecting.
The parts title of labelling and correspondence in accompanying drawing:
1-prop up bearing, the upper proofreading board of 2-, 3-support bar, 31-central shaft, 32-stopper slot, 33-projection, 34-roller, the upper hole of 4-,
Proofreading board, 6-lower opening, 7-guide rail under 5-.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As shown in figures 1 and 3, the present embodiment includes the bearing 1 being configured to by two rectangle steels being oppositely arranged, two institutes
State and on the sidewall that rectangle steelframe is relative, be from top to bottom sequentially provided with two row's support bars 3, upper proofreading board 2, lower proofreading board 5 correspondence respectively
It is placed on two row's support bars 3, upper proofreading board 2 has hole 4 on multiple, lower proofreading board 5 has multiple and upper hole 4 same
The lower opening 6 of the heart.Connection is referred to be welded together by multiple pre-embedded bolts by reinforcing bar by the group of multiple pre-embedded bolts, is formed and base
The bolt group structure that plinth short column matches, will multiple bolt uniform weldings inside two minor faces of rectangular frame on, wherein
Pre-embedded bolt includes supporting section and thread segment, and rectangular frame is then welded on supporting section, with facilitate the installation of pre-embedded bolt with
And the connection of bolt and steel column；And when welding, the pre-embedded bolt weight of monomer is big, when mobile, workload is big, and many
Individual pre-embedded bolt is when welding side by side, it is necessary to assure position is in the homogeneity of pre-embedded bolt with row, with ensure group to after
Bolt keeps correct station in the short column of basis, improves steel column and the stability of steel-structure factory building.
Concrete group is as follows to connection procedure: be held in place on the support bar 3 of lower row by lower proofreading board 5, by will be many
The thread segment of individual pre-embedded bolt sequentially passes through corresponding lower opening 6 on lower proofreading board 5, is then placed on by upper proofreading board 2
It is positioned on the support bar 3 of row, and the thread segment of pre-embedded bolt runs through hole 4, now by nut, pre-embedded bolt is fixed on
On upper proofreading board 2, the supporting section part of pre-embedded bolt is the most unsettled, and multiple pre-embedded bolts utilize the gravity of self to make it ensure
Perpendicularity on vertical direction, to facilitate staff to utilize reinforcing bar that multiple pre-embedded bolts are grouping connection, is allowed to be formed
One bolt assembly.After connection is completed by multiple bolt groups, after taking off nut, successively by upper proofreading board 2 and lower proofreading board 5 from
Take out on rectangle steelframe so that bolt assembly falls on ground, is now removed by two rectangle steelframes, then facilitates bolt assembly
Rapid transport.
Further, rectangle steelframe itself has certain weight, i.e. after connection is terminated by bolt group, and mobile rectangle steel
The difficulty of frame is relatively big, and therefore the bottom at rectangle steelframe has chute, and is provided with guide rail 7 on the ground, is being led by chute
On rail 7 slidably so that rectangle steelframe quickly moves, to facilitate the transhipment of bolt assembly.
As preferably, the aperture in upper hole 4 is identical with the thread segment external diameter of bolt, and is set greater than in the aperture in upper hole 4
The aperture of lower opening 6, while the thread segment facilitating bolt quickly runs through, moreover it is possible to reduce bolt support section regulation time sensitive
Degree, i.e. avoids just causing tilt bolt during proofreading board 5 under slight movement.
Embodiment 2
As depicted in figs. 1 and 2, the present embodiment is on the basis of embodiment 1, and described support bar 3 includes central shaft 31, in described
It is arranged with roller 34 in mandrel 31, roller 34 inwall axially has along it stopper slot 32, central shaft 31 outer wall is provided with
The projection 33 coordinated with stopper slot 32.In bolt group to connection procedure, need bolt is finely tuned definitely, and now bolt
Being fixed on upper proofreading board 2 by nut, run through lower opening 6 simultaneously, upper proofreading board 2 is then tightly fitted in by the gravity of bolt
On upper row's support bar 3, the mobile relative difficulty of himself, lower proofreading board 5 is then set on bolt, by mobile lower proofreading board
5 can realize the supporting section to bolt is simultaneously on the direction being perpendicular to horizontal plane with thread segment, to ensure the bolt group of molding
Part maintains the rectangular configuration of its standard, makes it to agree with completely with basis short column.During regulation, mobile lower proofreading board 5 so that roller
34 relatively rotate around central shaft 31, and have stopper slot 32 at roller 34 inwall, central shaft 31 is provided with and joins with stopper slot 32
The projection 33 closed, the end face at stopper slot 32 two ends is two extreme positions that projection 33 rotates, it is to avoid under the most mobile
Proofreading board 5 and cause proofreading board 2 that deviation occurs with the most corresponding position of lower proofreading board 5, i.e. ensure upper proofreading board 2 under
Projection on proofreading board 5 overlaps with lower proofreading board 5 completely.
As preferably, the stopper slot 32 arc length shared by roller 34 inner peripheral wall is minor arc, i.e. stopper slot 32 is minor arc
Arcuate groove, proofreading board 5 is when mobile instantly, minor arc arcuate groove can ensure the moving range of lower proofreading board 5 be confined to one less
In the range of, the position of supporting section with its thread segment in the vertical direction to prevent bolt occurs, and prevents proofreading board 2
The nut at place is lost its effect fastened by radial stress.
Embodiment 3
As it is shown in figure 1, the present embodiment is on the basis of embodiment 1, between width and two rectangle steelframes of described upper proofreading board 2
Gap length identical.Upper proofreading board 2 can be completely fixed in row's support bar 3 and the support of two rectangle steelframe two side formation
In space, i.e. ensure that multiple bolt is produced after being fixed on by nut on proofreading board 2 and rock, and then ensure in bolt group
To accuracy when connecting.
As preferably, lower proofreading board 5 is placed on lower row's support bar 3 and the supporting and space of two rectangle steelframe two side formation
In, and when bolt is finely adjusted, need the multiple directions from lower proofreading board 5 to debug so that the supporting section of bolt with
Thread segment remains the state being perpendicular to horizontal plane.
Above-described detailed description of the invention, has been carried out the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be it should be understood that the detailed description of the invention that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, all should comprise
Within protection scope of the present invention.
Claims (7)
1. it is used for a pre-embedded bolt group positioning tool to connecting, including propping up of being configured to by two rectangle steels being oppositely arranged
Bearing (1), it is characterised in that: on the sidewall that two described rectangle steelframes are relative, from top to bottom it is sequentially provided with two row's support bars
(3), upper proofreading board (2), lower proofreading board (5) are correspondingly placed on two row's support bars (3) respectively, have on upper proofreading board (2)
Multiple upper holes (4), have the lower opening (6) that multiple and upper hole (4) is concentric on lower proofreading board (5).
A kind of positioning tool for pre-embedded bolt group to connecting the most according to claim 1, it is characterised in that: described
Have chute bottom rectangle steelframe, and described rectangle steelframe is arranged on guide rail (7) by slide.
A kind of positioning tool for pre-embedded bolt group to connecting the most according to claim 1, it is characterised in that: described
Strut (3) includes central shaft (31), is arranged with roller (34) on described central shaft (31), along its axle on roller (34) inwall
To having stopper slot (32), central shaft (31) outer wall is provided with the projection (33) coordinated with stopper slot (32).
A kind of positioning tool for pre-embedded bolt group to connecting the most according to claim 3, it is characterised in that: described limit
Position groove (32) is minor arc arcuate groove.
A kind of positioning tool for pre-embedded bolt group to connecting the most according to claim 1, it is characterised in that: on described
The aperture in hole (4) is more than the aperture of described lower opening (6).
A kind of positioning tool for pre-embedded bolt group to connecting the most according to claim 1, it is characterised in that: on described
Gap length between width and two rectangle steelframes of proofreading board (2) is identical.
A kind of positioning tool for pre-embedded bolt group to connecting the most according to claim 1, it is characterised in that: under described
The width of proofreading board (5) is less than the gap length between two rectangle steelframes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610501169.4A CN106120837B (en) | 2016-06-30 | 2016-06-30 | It is a kind of for pre-embedded bolt group to the positioning tool of connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610501169.4A CN106120837B (en) | 2016-06-30 | 2016-06-30 | It is a kind of for pre-embedded bolt group to the positioning tool of connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106120837A true CN106120837A (en) | 2016-11-16 |
| CN106120837B CN106120837B (en) | 2019-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610501169.4A Active CN106120837B (en) | 2016-06-30 | 2016-06-30 | It is a kind of for pre-embedded bolt group to the positioning tool of connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106120837B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988340A (en) * | 2017-03-30 | 2017-07-28 | 中铁六局集团有限公司 | The construction method that reserved steel bar in cast-in-place concrete bottom plate is accurately positioned, installed |
| CN109763572A (en) * | 2019-01-23 | 2019-05-17 | 浙江省送变电工程有限公司 | A kind of device and its operating method of the quick pre-buried verticality of adjustment foundation bolt group |
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| JP2005307701A (en) * | 2004-04-26 | 2005-11-04 | Taisei Corp | Column steel frame supporting structure |
| CN202170636U (en) * | 2011-07-14 | 2012-03-21 | 中建八局第四建设有限公司 | Mould for pre-embedded foundation bolt of steel structural foundation |
| CN202884390U (en) * | 2012-09-21 | 2013-04-17 | 中国化学工程第三建设有限公司 | Fixing device for embedded bolt |
| CN203256760U (en) * | 2013-04-16 | 2013-10-30 | 中冶天工上海十三冶建设有限公司 | Formwork for quickly installing and positioning foundation bolt |
| CN203863275U (en) * | 2014-05-29 | 2014-10-08 | 中国建筑土木建设有限公司 | Die frame for welding embedded bolts of railway box girder |
| CN204040056U (en) * | 2014-06-26 | 2014-12-24 | 中国建筑第八工程局有限公司 | A kind of location and installation support of pre-embedded anchoring bolts |
| CN205713161U (en) * | 2016-06-30 | 2016-11-23 | 中国五冶集团有限公司 | A kind of positioner for bolt assembly docking |
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| JP2005307701A (en) * | 2004-04-26 | 2005-11-04 | Taisei Corp | Column steel frame supporting structure |
| CN202170636U (en) * | 2011-07-14 | 2012-03-21 | 中建八局第四建设有限公司 | Mould for pre-embedded foundation bolt of steel structural foundation |
| CN202884390U (en) * | 2012-09-21 | 2013-04-17 | 中国化学工程第三建设有限公司 | Fixing device for embedded bolt |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988340A (en) * | 2017-03-30 | 2017-07-28 | 中铁六局集团有限公司 | The construction method that reserved steel bar in cast-in-place concrete bottom plate is accurately positioned, installed |
| CN106988340B (en) * | 2017-03-30 | 2019-01-22 | 中铁六局集团有限公司 | Reserved steel bar in cast-in-place concrete bottom plate is accurately positioned, the construction method of installation |
| CN109763572A (en) * | 2019-01-23 | 2019-05-17 | 浙江省送变电工程有限公司 | A kind of device and its operating method of the quick pre-buried verticality of adjustment foundation bolt group |
| CN109763572B (en) * | 2019-01-23 | 2024-01-09 | 浙江省送变电工程有限公司 | Device for quickly adjusting embedded verticality of foundation bolt group and operation method of device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106120837B (en) | 2019-02-26 |
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