CN109160426A - A kind of trees boom hoisting of Garden Engineering - Google Patents
A kind of trees boom hoisting of Garden Engineering Download PDFInfo
- Publication number
- CN109160426A CN109160426A CN201811236563.5A CN201811236563A CN109160426A CN 109160426 A CN109160426 A CN 109160426A CN 201811236563 A CN201811236563 A CN 201811236563A CN 109160426 A CN109160426 A CN 109160426A
- Authority
- CN
- China
- Prior art keywords
- trees
- pedestal
- fixedly connected
- boom hoisting
- prypole
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/38—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with separate prime movers for crane and vehicle
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
- A01G23/02—Transplanting, uprooting, felling or delimbing trees
- A01G23/04—Transplanting trees; Devices for grasping the root ball, e.g. stump forceps; Wrappings or packages for transporting trees
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/42—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with jibs of adjustable configuration, e.g. foldable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a kind of trees boom hoistings of Garden Engineering, including device pedestal, driver's cabin is fixedly installed on the right of the upper surface of described device pedestal, the upper surface rear portion of described device pedestal is fixed with counterweight tank, clump weight is placed in the counterweight tank, the upper surface left side of described device pedestal is fixed with prypole pedestal, prypole is hinged on the prypole pedestal, the end of the prypole is hinged with connecting rod, the lower end surface of the connecting rod is fixedly connected with electric turntable, the lower end surface of the electric turntable is fixedly connected with cross bar, the electric turntable connects live wire.Trees boom hoisting of the invention can be separated with trailer, small in size, adapt to the construction operation in the gardens space Zhong little, applied widely；A large amount of human assistance is not needed during lifting by crane to trees, considerably reduces the danger caused by worker, and can lift by crane the trees that different directions are put.
Description
Technical field
The present invention relates to municipal greening field, the trees boom hoisting of specially a kind of Garden Engineering.
Background technique
The greening of municipal works is the important component in a city, with the continuous deterioration of air quality, city
Afforest the also attention by more and more people, most of green plants be all in gardens cultivate growth to a certain extent after, then
Designated position is transplanted to by construction personnel.The large-scale sapling that municipal administration greening is transplanted generally requires to carry out by boom hoisting
It carries, there are many kinds of classes for current existing trees boom hoisting, and replacement's work is carried, and it is time saving and energy saving, but it actually makes
There are still following drawbacks in:
(1) most of boom hoisting is fixed on trailer at present, since trailer volume is huger, tends not to adapt to gardens
The construction operation in medium and small space carries trees and causes certain obstruction；
(2) although fraction boom hoisting can drive off trailer separate operaton, boom hoisting and trailer over-separation, thus
To in its transportational process being difficult that it is fixed, there are security risks；
(3) trees are difficult in equilibrium state during lifting by crane to trees, thus need manually to assist it, shake
Trees be easy danger is caused to worker.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of trees boom hoistings of Garden Engineering.
The technical solution of present invention realization above-mentioned purpose are as follows:
Upper surface the right fixation of a kind of trees boom hoisting of Garden Engineering, including device pedestal, described device pedestal is set
Driver's cabin is set, counterweight tank is fixedly installed in the upper surface rear portion of described device pedestal, and the upper surface left side of described device pedestal is fixed
Prypole pedestal is set, and hinged prypole on the prypole pedestal, the end of the prypole is hinged with connecting rod, the company
The lower end of extension bar is fixedly connected with electric turntable, and the lower end of the electric turntable is fixedly connected with cross bar, and the end of the cross bar is fixed
It is connected with lifting rope, the upper surface front of described device pedestal is arranged hydraulic stem pedestal, is hinged on the hydraulic stem pedestal hydraulic
Bar, the upper end of the hydraulic stem are articulated with the lower end surface of prypole, and the lower end surface of described device pedestal is fixedly connected with reversing chassis,
The lower end surface of the reversing chassis is fixedly connected with lower vehicle frame, and the lower end of the lower vehicle frame is fixedly connected with two section telescopic bars, and described two
The other end of section telescopic bar is fixedly connected with three-section telescopic bar, and the second pole medial surface of the three-section telescopic bar is fixedly connected with folder
Plate, the third pole medial surface of the three-section telescopic bar are fixedly connected with lower clamp plate, and the side of the lower vehicle frame is equipped with wheel.
It preferably, further include wire collecting box, wire collecting box is set to the upper surface of device pedestal, and wire collecting box draws
Electric wire out connects electric turntable, is fixed with motor base in the wire collecting box, is fixed with motor on motor base.
Preferably, clump weight is placed in the counterweight tank.Clump weight (4) are placed in the counterweight tank (3),
Preferably, it is fixed with pulley seat above the prypole, pulley is installed on the pulley seat.
Preferably, wire collecting box is located at the front of prypole pedestal.
Preferably, the hydraulic stem base device is located at the front of wire collecting box.
Preferably, the lifting rope is two, is respectively fixedly connected at the both ends of cross bar.
Preferably, drum is fixed on the output shaft of the motor, the electric wire is by extending to electricity above pulley
Line storage box and the circle of wind pedestal drum one, the lower end attachment device internal circuit of the electric wire.
Preferably, two section telescopic bar, three-section telescopic bar, upper clamp plate, lower clamp plate are equipped with two pairs, about lower vehicle frame
Middle line be symmetrical arranged.
Preferably, two section telescopic bar is laterally setting, the three-section telescopic bar be it is vertically arranged, three section is flexible
Bar is perpendicular to two section telescopic bars.
Preferably, there are four the wheel is set altogether, the middle line about lower vehicle frame is symmetrical arranged.
Compared with prior art, the beneficial effects of the present invention are: structure of the invention setting rationally, functional, have with
Lower advantage:
(1) boom hoisting of the invention can flexibly be separated with trailer, so as to substantially reduce volume, be adapted to small in gardens
The construction operation in space, it is applied widely.
(2) boom hoisting of the invention conveniently and can be realized firmly on trailer and be fixed, thus during transportation
Safety is very high.
(3) it is able to maintain the balance of trees during lifting by crane to trees, does not need a large amount of human assistance, greatly
Ground reduces the danger to worker, and can lift by crane the trees that different directions are put.
Detailed description of the invention
Fig. 1 is schematic diagram of the present invention；
Fig. 2 is enlarged drawing at A in Fig. 1；
Bis- section telescopic bar of Fig. 3 and three-section telescopic bar shrink schematic diagram completely；
Fig. 4 is enlarged drawing at B in Fig. 3.
In figure: device pedestal 1, driver's cabin 2, counterweight tank 3, clump weight 4, prypole pedestal 5, prypole 6, connecting rod 7, electricity
Turn disk 8, cross bar 9, lifting rope 10, pulley seat 11, pulley 12, electric wire 13, wire collecting box 14, motor base 15, motor 16,
Hydraulic stem pedestal 17, hydraulic stem 18, reversing chassis 19, lower vehicle frame 20, two section telescopic bars 21, three-section telescopic bar 22, upper clamp plate 23,
Lower clamp plate 24, wheel 25.
Specific embodiment
The present invention is described in further details below in conjunction with attached drawing, but the present invention is not limited thereto.
As shown in Figures 1 to 4, Garden Engineering of the invention trees boom hoisting, including device pedestal 1, device pedestal 1
Upper surface on the right of driver's cabin 2 is fixedly installed, the upper surface rear portion of device pedestal 1 is fixedly installed counterweight tank 3, puts in counterweight tank 3
It is equipped with clump weight 4, prypole pedestal 5, hinged prypole on prypole pedestal 5 is fixedly installed in the upper surface left side of device pedestal 1
6, the end bar that is articulated and connected 7 of prypole 6, the lower end surface of connecting rod 7 is fixedly connected with electric turntable 8, the lower end of electric turntable 8
Face is fixedly connected with cross bar 9, and the end of cross bar 9 is fixedly connected with lifting rope 10, and the top of prypole 6 is fixed with pulley seat
11, pulley 12 is installed, electric turntable 8 connects live wire 13, and the upper surface of device pedestal 1 is also fixedly installed on pulley seat 11
Wire collecting box 14, wire collecting box 14 are located at the front of prypole pedestal 5, and the electric wire 13 that wire collecting box 14 is drawn connects electricity
Turn disk 8 is fixed with motor base 15 in the wire collecting box 14, motor 16, device is fixed on motor base 15
Hydraulic stem pedestal 17 is fixedly installed in the upper surface front of pedestal 1, and hydraulic stem pedestal 17 is located at the front of wire collecting box 14, hydraulic
Hydraulic stem 18 is hinged on bar pedestal 17, the upper end of hydraulic stem 18 is articulated with the lower end surface of prypole 6, the lower end of device pedestal 1
Face is fixedly connected with reversing chassis 19, and the lower end surface of reversing chassis 19 is fixedly connected with lower vehicle frame 20, and the lower end of lower vehicle frame 20 is fixed to be connected
Two section telescopic bars 21 are connect, the other end of two section telescopic bars 21 is fixedly connected with three-section telescopic bar 22, the second section of three-section telescopic bar 22
Bar medial surface is fixedly connected with upper clamp plate 23, and the third pole medial surface of three-section telescopic bar 22 is fixedly connected with lower clamp plate 24, lower vehicle frame
20 side is equipped with wheel 25.
Further, lifting rope 10 is equipped with two altogether, is respectively fixedly connected with the two ends in cross bar 9.
Further, drum is fixed on the output shaft of motor 16, electric wire 13 extends to electricity by the top of pulley 12
Line storage box 14 and 1 drum one of wind pedestal circle, the lower end attachment device internal circuit of electric wire 13.
Further, two section telescopic bars 21, three-section telescopic bar 22, upper clamp plate 23, lower clamp plate 24 are equipped with two pairs, about
The middle line of lower vehicle frame 20 is symmetrical arranged.
Further, two section telescopic bars 21 be laterally setting, three-section telescopic bar 22 be it is vertically arranged, three-section telescopic bar 22 hang down
Directly in two section telescopic bars 21.
Further, there are four wheel 25 is set altogether, the middle line about lower vehicle frame 20 is symmetrical arranged.
Working principle: when encountering the small construction site of activity space, this boom hoisting can be unloaded from trailer, be had
Gymnastics as: controlled in driver's cabin 2 by driver three-section telescopic bar 22 third pole stretching, extension and the second pole shrink, then
The stretching, extension of two section telescopic bars 21 is controlled, it is complete that three-section telescopic bar 22 is controlled when two lower clamp plates 24 are all located at trailer planker two sides outer end
Portion is shunk, then shrinks two section telescopic bars 21 completely, can be driven this boom hoisting at this time and be opened lower trailer.It is lifted by crane to trees
When moving, rising prypole 6 and hydraulic stem 18, (length of electric wire 13 can satisfy 6 full extension of prypole to suitable height
Needs, the excess portion of electric wire 13 is placed in cable holder in the state that prypole 6 and hydraulic stem 18 are shunk completely
In box 14), cross bar 9 is adjusted by electric turntable 8 according to the placing direction of trees, keeps cross bar 9 consistent with the direction of trees, by two
Root lifting rope 10 respectively sling trees to suitable height, lead to by the fixed both ends for being wrapped in trees, rise prypole 6 and hydraulic stem 18
19 main body turning of reversing chassis is crossed, trees are placed in the top of lorry, prypole 6 is shunk and trees is placed on goods by hydraulic stem 18
In the wagon box of vehicle, then the lifting rope 10 for being wrapped in trees both ends is unlocked, main body turning shrinks prypole 6 and hydraulic stem 18 to other trees
Wood carry out lifting move (during prypole 6 and hydraulic stem 18 are shunk motor 16 can rotation simultaneously shunk by drum it is electric
Line 13), after to trees rigging out, this boom hoisting can be driven and open trailer planker, when needing to fix it, Ke Yishen
Two section telescopic bars 21 are opened up, the third pole of three-section telescopic bar 22 is stretched when two lower clamp plates 24 are all located at planker two sides outer end,
When two sections are shunk when the lower end surface of planker, the lower end surface of upper clamp plate 23 are higher than the upper surface of planker in the upper surface bottom of lower clamp plate 24
Telescopic rod 21 is fully located at below planker up to lower clamp plate 24, is stretched the second pole of three-section telescopic bar 22 at this time, is shunk three sections
The third pole of telescopic rod 22 clamps trailer planker up to upper clamp plate 23 and lower clamp plate 24 completely, in this way can be by this boom hoisting
It is fixed on trailer planker.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of trees boom hoisting of Garden Engineering, including device pedestal (1), it is characterised in that: described device pedestal (1)
Upper surface on the right of be fixedly installed driver's cabin (2), the upper surface rear portion of described device pedestal (1) is fixed with counterweight tank (3), institute
Upper surface left side fixed setting prypole pedestal (5) of device pedestal (1) is stated, is hinged with lifting on the prypole pedestal (5)
The lower end surface of bar (6), the end bar that is articulated and connected (7) of the prypole (6), the connecting rod (7) is fixedly connected with electric rotating
The lower end surface of disk (8), the electric turntable (8) is fixedly connected with cross bar (9), and the end of the cross bar (9), which is fixedly connected with, hangs
It restricts (10), hydraulic stem pedestal (17) are arranged in the upper surface front of described device pedestal (1), hinged on the hydraulic stem pedestal (17)
The upper end of hydraulic stem (18), the hydraulic stem (18) is articulated with the lower end surface of prypole (6), the lower end of described device pedestal (1)
Face is fixedly connected reversing chassis (19), and the lower end surface of the reversing chassis (19) is fixedly connected lower vehicle frame (20), the lower vehicle frame
(20) lower end is fixedly connected two section telescopic bars (21), and the other end of two section telescopic bar (21) is fixedly connected with three-section telescopic bar
(22), the second pole medial surface of the three-section telescopic bar (22) is fixedly connected upper clamp plate (23), the three-section telescopic bar (22)
Third pole medial surface be fixedly connected lower clamp plate (24), the side of the lower vehicle frame (20) is equipped with wheel (25).
2. the trees boom hoisting of Garden Engineering according to claim 1, it is characterised in that: further include wire collecting box
(14), wire collecting box (14) is set to the upper surface of device pedestal (1), electric wire (13) connection that wire collecting box (14) is drawn
Electric turntable (8), the wire collecting box (14) is interior to be fixed with motor base (15), and motor base is fixed with electricity on (15)
Machine (16).
3. the trees boom hoisting of Garden Engineering according to claim 2, it is characterised in that: in the counterweight tank (3)
It is placed with clump weight (4).
4. the trees boom hoisting of Garden Engineering according to claim 2, it is characterised in that: the top of the prypole
It is fixed with pulley seat, pulley is installed on the pulley seat.
5. the trees boom hoisting of Garden Engineering according to claim 2, it is characterised in that: wire collecting box is located at
The front of weight bar pedestal；The hydraulic stem base device is located at the front of wire collecting box.
6. the trees boom hoisting of Garden Engineering according to claim 2, it is characterised in that: the lifting rope (10) sets altogether
There are two, is respectively fixedly connected with the two ends in cross bar (9).
7. the trees boom hoisting of Garden Engineering according to claim 2, it is characterised in that: the motor (16) it is defeated
Drum is fixed on shaft, the electric wire (13) is by extending to wire collecting box (14) above pulley (12) and winding dress
Bottom set seat (1) drum one encloses, the lower end attachment device internal circuit of the electric wire (13).
8. the trees boom hoisting of Garden Engineering according to claim 2, it is characterised in that: two section telescopic bar
(21), three-section telescopic bar (22), upper clamp plate (23), lower clamp plate (24) are equipped with two pairs, the middle line pair about lower vehicle frame (20)
Claim setting.
9. the trees boom hoisting of Garden Engineering according to claim 2, it is characterised in that: two section telescopic bar
(21) be laterally setting, the three-section telescopic bar (22) be it is vertically arranged, the three-section telescopic bar (22) is flexible perpendicular to two sections
Bar (21).
10. the trees boom hoisting of Garden Engineering according to claim 2, it is characterised in that: the wheel (25) is altogether
If there are four, the middle line about lower vehicle frame (20) is symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811236563.5A CN109160426B (en) | 2018-10-23 | 2018-10-23 | Tree hoisting device for garden engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811236563.5A CN109160426B (en) | 2018-10-23 | 2018-10-23 | Tree hoisting device for garden engineering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109160426A true CN109160426A (en) | 2019-01-08 |
| CN109160426B CN109160426B (en) | 2021-02-19 |
Family
ID=64879133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811236563.5A Active CN109160426B (en) | 2018-10-23 | 2018-10-23 | Tree hoisting device for garden engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109160426B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110140630A (en) * | 2019-05-20 | 2019-08-20 | 镇江市丹徒常青农林科技有限公司 | A kind of Chinese garden planting fixture |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2282121A (en) * | 1993-09-25 | 1995-03-29 | William Stuart Hickie Taylor | Self loading trailer |
| CN104891348A (en) * | 2015-05-20 | 2015-09-09 | 北京市自来水集团门城污水处理有限公司 | Small movable crane |
| CN206181972U (en) * | 2016-08-31 | 2017-05-24 | 长兴久隆园林绿化工程有限公司 | Tree device is hung in remote control |
| CN107098279A (en) * | 2017-05-17 | 2017-08-29 | 李阳 | It is a kind of can it is convenient handling and efficient stable lifting hydraulic engineering reinforcing bar crane |
| CN206606940U (en) * | 2017-02-10 | 2017-11-03 | 济宁四通工程机械有限公司 | One kind is moved tree and hung |
| CN108128709A (en) * | 2017-12-20 | 2018-06-08 | 刘桂珍 | Intelligence hanging apparatus for building |
| CN209081299U (en) * | 2018-10-23 | 2019-07-09 | 湖南精正设备制造有限公司 | A kind of trees boom hoisting of Garden Engineering |
-
2018
- 2018-10-23 CN CN201811236563.5A patent/CN109160426B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2282121A (en) * | 1993-09-25 | 1995-03-29 | William Stuart Hickie Taylor | Self loading trailer |
| CN104891348A (en) * | 2015-05-20 | 2015-09-09 | 北京市自来水集团门城污水处理有限公司 | Small movable crane |
| CN206181972U (en) * | 2016-08-31 | 2017-05-24 | 长兴久隆园林绿化工程有限公司 | Tree device is hung in remote control |
| CN206606940U (en) * | 2017-02-10 | 2017-11-03 | 济宁四通工程机械有限公司 | One kind is moved tree and hung |
| CN107098279A (en) * | 2017-05-17 | 2017-08-29 | 李阳 | It is a kind of can it is convenient handling and efficient stable lifting hydraulic engineering reinforcing bar crane |
| CN108128709A (en) * | 2017-12-20 | 2018-06-08 | 刘桂珍 | Intelligence hanging apparatus for building |
| CN209081299U (en) * | 2018-10-23 | 2019-07-09 | 湖南精正设备制造有限公司 | A kind of trees boom hoisting of Garden Engineering |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110140630A (en) * | 2019-05-20 | 2019-08-20 | 镇江市丹徒常青农林科技有限公司 | A kind of Chinese garden planting fixture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109160426B (en) | 2021-02-19 |
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