CN105293312B - A kind of derrick crane - Google Patents
A kind of derrick crane Download PDFInfo
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- CN105293312B CN105293312B CN201510830954.XA CN201510830954A CN105293312B CN 105293312 B CN105293312 B CN 105293312B CN 201510830954 A CN201510830954 A CN 201510830954A CN 105293312 B CN105293312 B CN 105293312B
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- jib
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- counterweight
- balancing weight
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Abstract
A kind of derrick crane, it is related to a kind of constructional engineering machinery, including pedestal, tower body, jacking stock, turntable, crane arm, counter-jib and balancing weight, tower body is built by several standard knots, jacking stock can be moved on the standard knot, turntable is arranged on the jacking set top of the trellis, crane arm and the counter-jib are arranged on the turntable, crane arm and the counter-jib position are relative, top is provided with counterweight lowering or hoisting gear in jacking stock, counterweight lowering or hoisting gear can be moved up and down inside the standard knot, the counterweight slideway being engaged with counterweight lowering or hoisting gear is provided with counter-jib, the fixing device of fixed weight block is additionally provided with counter-jib.Compared with prior art, the beneficial effects of the invention are as follows：The present invention can dismantle balancing weight with Fast Installation, can pull down balancing weight rapidly under typhoon or other strong wind states and keep tower body steadily of centre of gravity, also solving conventional balancing weight needs crane to install, and installation effectiveness is low, slow-footed problem.
Description
Technical field
The present invention relates to a kind of constructional engineering machinery, more particularly, to a kind of construction site derrick crane.
Background technology
Derrick crane abbreviation tower crane, also known as tower crane, originating from West Europe.It is exactly the rotation that swing arm is mounted in towering tower body top
Turn crane.Derrick crane working space is big, is mainly used in housing construction the vertically and horizontally conveying of material and builds
Build the installation of component.It is made up of metal structure, operating mechanism and the part of electrical system three.Metal structure include tower body, swing arm and
Base etc..There are raising, luffing, four parts of revolution and walking in operating mechanism.Electrical system include motor, controller, power distribution cabinet,
Connection line, signal and lighting device etc..With the progress of engineering technology, the floor more and more higher built now so that required
Derrick crane also more and more higher, but too high derrick crane has the problem of stability is poor, especially in southeastern coast
During typhoon, often occurs the event that derrick crane is created greater casualties in typhoon day by extension.In addition, derrick crane is all
Need that balancing weight is installed, balancing weight is hung on derrick crane with other loop wheel machines mostly, installing/dismounting trouble so that tower
Crane can not realize fast-assembling.
The content of the invention
The present invention is for deficiency of the prior art there is provided a kind of derrick crane, and the present invention can be torn open with Fast Installation
Balancing weight is unloaded, balancing weight can be pulled down rapidly under typhoon or other strong wind states and keep tower body steadily of centre of gravity, also solved
Certainly conventional balancing weight needs crane to install, and installation effectiveness is low, slow-footed problem.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：A kind of derrick crane, bag
Pedestal, tower body, jacking stock, turntable, crane arm, counter-jib and balancing weight are included, described tower body is taken by several standard knots
Build and form, the jacking stock can be moved on the standard knot, the turntable is arranged on the jacking set top of the trellis, described
Crane arm and the counter-jib are arranged on the turntable, the crane arm top relative, described with the counter-jib position
Rise top in stock and be provided with counterweight lowering or hoisting gear, the counterweight lowering or hoisting gear can be moved up and down inside the standard knot, described
It is provided with counter-jib on the counterweight slideway being engaged with the counterweight lowering or hoisting gear, described counter-jib and is additionally provided with fixed institute
State the fixing device of balancing weight.
In above-mentioned technical proposal, it is preferred that described counterweight lowering or hoisting gear includes setting on lifter, described lifter
Have and counterweight fixed station be provided with some drawstrings, described drawstring, fixed station slideway is provided with described counterweight fixed station,
On described fixed station slideway slide be provided with several balancing weight fixed mounts, described counterweight slideway be provided with it is described solid
Determine the alignment device that platform slideway is engaged.
In above-mentioned technical proposal, it is preferred that be provided with connection on the alignment device electric rotation shaft, described electric rotation shaft
The connection slideway with the fixed station slideway and counterweight slideway cooperation, described company are provided with plate, described connecting plate
It is additionally provided with several electric expansion limited posts, described fixed station and is provided with and the electric expansion limited post phase on fishplate bar
The spacing hole matched somebody with somebody.
In above-mentioned technical proposal, it is preferred that described spacing hole is tapered, is inwardly gradually reduced at opening.
In above-mentioned technical proposal, it is preferred that protection framework, motor and electricity are provided with described balancing weight fixed mount
It is dynamic locked piece.
In above-mentioned technical proposal, it is preferred that be respectively arranged with inside fixed lobe on described protection framework biside plate,
The fixed groove being engaged with the fixed lobe is provided with described balancing weight.
In above-mentioned technical proposal, it is preferred that several supports are provided between the counterweight slideway and the counter-jib and are connected
Extension bar.
Existing balancing weight is lifted by crane, and one piece one piece of installation is needed during lifting, not only installs effect
Rate is low, and the time is long, and dismounting operation can not be also carried out when bad environments, once projection strong wind, balancing weight can not unload non-
The crank of tower crane is often easily caused, jeopardizes production and construction safety.It is of the invention then be by being arranged on inside derrick crane
Counterweight lowering or hoisting gear carry out the installation of balancing weight, without external force, and be not affected by the weather, as long as derrick crane can enter
Row work, it is possible to carry out the dismounting of balancing weight.Its cardinal principle forms transport channel using standard knot inner space, leads to herein
The rise of balancing weight is carried out in road with putting down, is then moved to after balancing weight rises to top by the counterweight slideway on counter-jib
The end of counter-jib, is fixed finally by the fixing device on counter-jib.It is consistent when principle is with installing when balancing weight is unloaded,
First pass through fixing device and release fixation, then slide onto on counterweight lowering or hoisting gear, be finally down to ground.In order to reach this effect
Really, counterweight lowering or hoisting gear of the invention includes lifter, is provided with some drawstrings, drawstring on lifter and is provided with counterweight and consolidates
Determine to be provided with platform, counterweight fixed station on fixed station slideway, fixed station slideway and be provided with balancing weight fixed mount.Balancing weight, which is put into, matches somebody with somebody
On pouring weight fixed mount, the fixed station slideway on counterweight fixed station can be directed at insertion with counterweight slideway, complete to match somebody with somebody by lifter
The rise and fall of pouring weight, complete balancing weight further through counterweight slideway and fixed station slideway and are moved on counter-jib.Again because matching somebody with somebody
Weight lowering or hoisting gear can once transport multiple balancing weights or single balancing weight so that derrick crane in use can be quick
Increase reduces breeding, it is thus also avoided that need to replace all balancing weight problems again now.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention can dismantle balancing weight, Ke Yi with Fast Installation
Rapid balancing weight of pulling down keeps tower body steadily of centre of gravity under typhoon or other strong wind states, also solves conventional balancing weight needs
Crane is installed, and installation effectiveness is low, slow-footed problem.
Brief description of the drawings
Fig. 1 is front schematic view of the present invention.
Fig. 2 is contraction state schematic diagram of the present invention.
Fig. 3 is contraction process schematic diagram of the present invention.
Fig. 4 is use state schematic diagram of the present invention.
Fig. 5 is connecting plate schematic diagram of the present invention.
Fig. 6 is balancing weight fixed mount side schematic view of the present invention.
Fig. 7 is balancing weight fixed mount front schematic view of the present invention.
Fig. 8 is standard knot schematic diagram of the present invention.
Fig. 9 is partial enlarged drawing schematic diagram at A in Fig. 4 of the present invention.
Figure 10 is partial enlarged drawing schematic diagram at B in Fig. 4 of the present invention.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in Figures 1 to 10, a kind of derrick crane, including pedestal 1, tower body 2, jacking stock 3, turntable 6, tower top
7th, crane arm 5, counter-jib 4 and balancing weight 11, described tower body 2 are built by several standard knots 21, the jacking stock 3
It can be moved on the standard knot 21, the turntable 6 is arranged on the top of jacking stock 3, and the tower top 7 is arranged on described
On turntable 6.
Lifting rotating shaft 63 and balance rotating shaft 61 are respectively arranged with the turntable 6, crane arm 5 is rotatably arranged on lifting and turned
On axle 63, counter-jib 4 is rotatably arranged in balance rotating shaft 61, and crane arm 5 and the counter-jib 4 position is relative, described
It is provided with several first electric expansion fix bars 64, described turntable 6 to be provided with weighing arm 5 and consolidates with the first electric expansion
Several second electric expansion fix bars 62, described rotation are provided with the first fixing groove that fixed pole 64 is engaged, the counter-jib 4
The second fixing groove being engaged with the second electric expansion fix bar 62, the crane arm 5 and the counter-jib 4 are provided with platform 6
First Guyed Towers 55 and second Guyed Towers 48 are respectively arranged with the top of top, the tower top 7 is provided with first tubing sections device 73 and second
Tubing sections device 71, is connected between the first Guyed Towers 55 and the first tubing sections device 73 by first rope 74, described
Pass through second rope connection 72, described first rope 74 and described second between second Guyed Towers 48 and the second tubing sections device 71
Rope 72 all twists into for some steel wire ropes.The described top of counter-jib 4 rotates and is provided with electronic drag hook 46, described electronic drawing
Hook 46 can hang over the junction between two standard knots 21.The top of crane arm 5 is provided with to be connected with the lifting slideway 51
The cambered way 53 connect, has occluding device 54 between described lifting slideway 51 and the cambered way 53.Described lifting
Arm 5 and the described top end of counter-jib 4 are respectively arranged with first cable lifter 56 and second cable lifter 47, described pedestal
The fixed hook 13 with the first cable lifter 56 and the second cable lifter 47 cooperation is provided with 1.
Top is provided with counterweight lowering or hoisting gear 8 in described jacking stock 3, and the counterweight lowering or hoisting gear 8 can be in the standard
Moved up and down inside section 21, the counterweight slideway 41 being engaged with the counterweight lowering or hoisting gear 8, institute are provided with the counter-jib 4
State and several supporting linkages 42 are provided between counterweight slideway 41 and the counter-jib 4.Described counterweight lowering or hoisting gear 8 includes
It is provided with lifter 81, described lifter 81 on some drawstrings 82, described drawstring 82 and is provided with counterweight fixed station 83,
It is provided with to slide on fixed station slideway 84, described fixed station slideway 84 on described counterweight fixed station 83 and is provided with several and matches somebody with somebody
Protection framework 853, motor 851 and electronic locked piece are provided with pouring weight fixed mount 85, described balancing weight fixed mount 85
852.It is respectively arranged with inside fixed lobe 854, described balancing weight 11 and sets on the described biside plate of protection framework 853
There is the fixed groove being engaged with the fixed lobe 854.It is provided with described counterweight slideway 41 and the fixed station slideway
84 alignment devices 43 being engaged.The alignment device 43 includes being provided with electric rotation shaft 431, described electric rotation shaft 431
The connection with the fixed station slideway 84 and the counterweight slideway 41 cooperation is provided with connecting plate 432, described connecting plate 432
It is additionally provided with several electric expansion limited posts 434, described fixed station 83 and sets on slideway 433, described connecting plate 432
There is the spacing hole 86 matched with the electric expansion limited post 434.Described spacing hole 86 is tapered, at opening inwardly gradually
Reduce.
The fixing device 44 of the fixed balancing weight 11 is additionally provided with described counter-jib 4 and the balancing weight 11 is protected
Airbag apparatus 45, described fixing device 44, which includes being provided with electric turnover frame 441, described electric turnover frame 441, stretches
Fixed dam 443 is provided with contracting cylinder 442, described telescopic cylinder 442.Described airbag apparatus 45 is described including being arranged on
The repeatable inflated airbag of the top bottom of counter-jib 4, described air bag 451 is the cuboid of opening upwards, described air bag
Fast connection interface 452 is provided between 451 and described counter-jib 4.Several electronic windings are provided with described jacking stock 3
Device 32, described electronic coiler 32 includes being provided with fixed hawser 33, described pedestal 1 and matched with the fixed hawser 33
The hook 12 of conjunction.
Tower crane of the present invention rapid removal balancing weight 11 and can pack up the He of crane arm 5 before bad weather arrives
Counter-jib 4, changes tower crane center of gravity and wind surface by this measure, several with reduce that the tower crane under strong wind weather topples
Rate.Balancing weight 11 and expansion crane arm 5 can quickly be reinstalled again after weather improves and counter-jib 4 allows tower crane to put into work at once
Make.Its cardinal principle is to first pass through counterweight lowering or hoisting gear 8 to unload to pedestal 1 balancing weight 11.Firstly the need of passing through fixing device
44 unclamp the fixed dam 443 being pressed against on balancing weight 11, then store solid by electric turnover frame 441 and telescopic cylinder 442
Determine baffle plate 443 and allow whole fixing device 44 away from counterweight slideway 41, the sliding of balancing weight fixed mount 85 is not influenceed.Then rotate
The connection slideway 433 that alignment device 43 allows on alignment device 43 and the UNICOM of counterweight slideway 41.Moved up and down and matched somebody with somebody by lifter 81
Weight fixed station 83, allows counterweight fixed station 83 substantially to be alignd with connecting plate 432, and the electric expansion on its relief connecting plate 432 is spacing
Post 434 stretches out, and is inserted into the spacing hole 86 on counterweight fixed station 83.Because spacing hole 86 it is tapered and at opening inwardly by
It is tapered small, in the case where counterweight fixed station 83 and connecting plate 432 have certain deviation electric expansion limited post 434 can be allowed to stretch
Enter into spacing hole 86, and electric expansion limited post 434 be fully inserted into after counterweight fixed station 83 and connecting plate 432 can be allowed complete
Alignment, now connects slideway 433, counterweight slideway 41 and is connected with the fixed station slideway 84 on counterweight fixed station 83, allow balancing weight to consolidate
The motor 851 determined on frame 85 starts, on automatic sliding to counterweight fixed station 83, when all balancing weight fixed mounts 85 are all slided
After moving on on counterweight fixed station 83, start electronic locked piece 852 on balancing weight fixed mount 85, prevent balancing weight fixed mount 85 from existing
Fixed station slideway 84 is slided.Counterweight fixed station 83 is moved on on pedestal 1 finally by lifter 81.
Balancing weight 11 is moved on to after pedestal 1, first rope 74 between tensioning first Guyed Towers 55 and first tubing sections device 73 and
Second rope connection 72 between second Guyed Towers 48 and second tubing sections device 71, then allows crane arm 5, counter-jib 4 and turntable 6
Between fixation producing means separation, both unclamped first electric expansion fix bar 64 and second electric expansion fix bar 62.Subsequently exist
First tubing sections device 73 and putting for second tubing sections device 71 slowly turn lower crane arm 5 and counter-jib 4 in rope action.Rising
, it is necessary to which withdrawal alignment dress is deflated and bent to the air bag 451 being arranged on counter-jib 4 before weighing arm 5 and counter-jib 4 are rotated down
Put 43；The occluding device 54 between lifting slideway 51 and cambered way 53 on crane arm 5 is unclamped, allows lifting slideway 51 to be slided with arc
The UNICOM of road 53, facilitates suspender 52 to be moved on cambered way 53.Crane arm 5 and counter-jib 4 can allow after the completion of rotating and be arranged on
The first cable lifter 56 and second cable lifter 47 of crane arm 5 and the top end of counter-jib 4 fall connection rope, and rope
Tie up on the fixed hook 13 on pedestal 1, can so prevent crane arm 5 in inclement weather and counter-jib 4 from can swing with the wind
Generation accident.The junction between two standard knots 21 can also be hung over by the electronic drag hook 46 on counter-jib 4 if necessary,
So that counter-jib 4 is preferably fixed.
Only need to carry out reverse operating during installation, both first passed through first tubing sections device 73 and second tubing sections device
71 crane arms 5 and the pull-up again of counter-jib 4, are then allowed by first electric expansion fix bar 64 and second electric expansion fix bar 62
Crane arm 5 and counter-jib 4 are fixed with turntable 6.After the completion of fixation, both balancing weight fixed mount 85 was risen can again, by even
Connect slideway 433 and counterweight slideway 41 and balancing weight fixed mount 85 is moved to the top of counter-jib 4.Balancing weight fixed mount 85 moves to counter-jib
Behind 4 tops, balancing weight fixed mount 85 is propped up by the fixed dam 443 in fixing device 44, balancing weight fixed mount 85 is kept
It is stable.Because balancing weight fixed mount 85 can install single balancing weight 11 additional, so can operationally carry out balancing weight at any time
11 installing additional and dismantling, keeps dynamic balance different between crane arm 5 and counter-jib 4.Air bag 451 has two kinds when reclaiming
Mode, one kind is direct deflation, is folded together followed by counter-jib 4, another directly put down by fast connection interface 452.
Air bag 451 is if there is toppling and balancing weight 11 drops situation, air bag 451 can be allowed to wrap up counterweight in the effect of the present invention
Block 11, although air bag 451 can not prevent dropping for balancing weight 11, but air bag 451 can prevent balancing weight 11 from being splashed after breaking into pieces
Particle, prevent these particles splash hurt sb.'s feelings and damage machine.The present invention sets limited location to lead also on jacking stock 3 simultaneously
Groove 31, limit guide groove 31 can be provided with and be engaged with limit guide groove 31 with the installation of auxiliary criteria section 21 at the top of standard knot 21
Sliver 22, the bottom of standard knot 21 be provided be engaged with the sliver 22 agree with groove 23, the opening of limit guide groove 31 is in loudspeaker
Mouthful, when standard knot 21 is installed additional in jacking stock 3, sliver 22 can be allowed to be moved along limit guide groove 31, it is easier to alignment,
Guide groove 31 also agrees with agreeing with groove 23 after alignment, facilitates the standard knot 21 of upper-lower position to be aligned and agrees with, has and utilize next step standard
The fixation of section 21.
Claims (7)
1. a kind of derrick crane, including pedestal（1）, tower body（2）, jacking stock（3）, turntable（6）, crane arm（5）, balance
Arm（4）And balancing weight（11）, described tower body（2）By several standard knots（21）Build, the jacking stock（3）Can be
The standard knot（21）Upper movement, the turntable（6）It is arranged on the jacking stock（3）Top, it is characterized in that, the lifting
Arm（5）With the counter-jib（4）It is arranged on the turntable（6）On, the crane arm（5）With the counter-jib（4）Position phase
Right, described jacking stock（3）Interior top is provided with counterweight lowering or hoisting gear（8）, the counterweight lowering or hoisting gear（8）Can be in the standard
Section（21）Inside is moved up and down, the counter-jib（4）On be provided with and the counterweight lowering or hoisting gear（8）The counterweight slideway being engaged
（41）, described counter-jib（4）On be additionally provided with the fixed balancing weight（11）Fixing device（44）, described fixing device
（44）Including electric turnover frame（441）, described electric turnover frame（441）On be provided with telescopic cylinder（442）, described is flexible
Cylinder（442）On be provided with fixed dam（443）, the turntable（6）On be respectively arranged with lifting rotating shaft（63）Turn with balance
Axle（61）, crane arm（5）It is rotatably arranged on lifting rotating shaft（63）On, counter-jib（4）It is rotatably arranged on balance rotating shaft（61）On, institute
State crane arm（5）With the counter-jib（4）Position is relative, the crane arm（5）On be provided with several first electric expansions and fix
Bar（64）, described turntable（6）On be provided with and the first electric expansion fix bar（64）The first fixing groove being engaged, it is described
Counter-jib（4）On be provided with several second electric expansion fix bars（62）, described turntable（6）On be provided with and the second electricity
Dynamic telescopic fixing rod（62）The second fixing groove being engaged.
2. a kind of derrick crane according to claim 1, it is characterized in that, described counterweight lowering or hoisting gear（8）Including rising
Device drops（81）, described lifter（81）On be provided with some drawstrings（82）, described drawstring（82）On be provided with counterweight consolidate
Determine platform（83）, described counterweight fixed station（83）On be provided with fixed station slideway（84）, described fixed station slideway（84）Upper cunning
It is dynamic to be provided with several balancing weight fixed mounts（85）, described counterweight slideway（41）On be provided with and the fixed station slideway（84）
The alignment device being engaged（43）.
3. a kind of derrick crane according to claim 2, it is characterized in that, the alignment device（43）Including electric rotation shaft
（431）, described electric rotation shaft（431）On be provided with connecting plate（432）, described connecting plate（432）On be provided with it is described
Fixed station slideway（84）With the counterweight slideway（41）The connection slideway of cooperation（433）, described connecting plate（432）On also set up
There are several electric expansion limited posts（434）, described fixed station（83）On be provided with and the electric expansion limited post（434）
The spacing hole of matching（86）.
4. a kind of derrick crane according to claim 3, it is characterized in that, described spacing hole（86）It is tapered, from opening
Inwardly it is gradually reduced at mouthful.
5. a kind of derrick crane according to claim 2, it is characterized in that, described balancing weight fixed mount（85）It is upper to set
There is protection framework（853）, motor（851）With electronic locked piece（852）.
6. a kind of derrick crane according to claim 5, it is characterized in that, described protection framework（853）On biside plate
It is respectively arranged with inside fixed lobe（854）, described balancing weight（11）On be provided with and the fixed lobe（854）Match
The fixed groove of conjunction.
7. a kind of derrick crane according to claim 1, it is characterized in that, the counterweight slideway（41）With the counter-jib
（4）Between be provided with several supporting linkages（42）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510830954.XA CN105293312B (en) | 2015-11-25 | 2015-11-25 | A kind of derrick crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510830954.XA CN105293312B (en) | 2015-11-25 | 2015-11-25 | A kind of derrick crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105293312A CN105293312A (en) | 2016-02-03 |
| CN105293312B true CN105293312B (en) | 2017-09-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510830954.XA Active CN105293312B (en) | 2015-11-25 | 2015-11-25 | A kind of derrick crane |
Country Status (1)
| Country | Link |
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| CN (1) | CN105293312B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016996B (en) * | 2017-11-29 | 2019-01-11 | 宁波伊顿电力科技有限公司 | A kind of substation's loop wheel machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3642148A (en) * | 1969-05-29 | 1972-02-15 | Richier Sa | Device for achieving permanent equilibration in tower cranes |
| DE2448110A1 (en) * | 1974-10-09 | 1976-04-22 | Krupp Gmbh | Jib crane with tailweight - moves to position improving stability when unloaded |
| DE3718800A1 (en) * | 1987-06-04 | 1988-12-15 | Liebherr Werk Biberach Gmbh | TOWER TURNING CRANE |
| US5609260A (en) * | 1996-02-05 | 1997-03-11 | Liao; Fu-Chang | Derrick structure |
| DE20019287U1 (en) * | 2000-11-14 | 2002-03-21 | Liebherr-Werk Biberach GmbH, 88400 Biberach | Device for ballasting a crane |
| CN203284095U (en) * | 2013-06-05 | 2013-11-13 | 山东淄建集团有限公司 | Tower crane for cooling tower |
| CN104477789A (en) * | 2014-12-07 | 2015-04-01 | 苏州汇诚智造工业设计有限公司 | Multifunctional tower crane for building construction and manufacturing and construction methods thereof |
-
2015
- 2015-11-25 CN CN201510830954.XA patent/CN105293312B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3642148A (en) * | 1969-05-29 | 1972-02-15 | Richier Sa | Device for achieving permanent equilibration in tower cranes |
| DE2448110A1 (en) * | 1974-10-09 | 1976-04-22 | Krupp Gmbh | Jib crane with tailweight - moves to position improving stability when unloaded |
| DE3718800A1 (en) * | 1987-06-04 | 1988-12-15 | Liebherr Werk Biberach Gmbh | TOWER TURNING CRANE |
| US5609260A (en) * | 1996-02-05 | 1997-03-11 | Liao; Fu-Chang | Derrick structure |
| DE20019287U1 (en) * | 2000-11-14 | 2002-03-21 | Liebherr-Werk Biberach GmbH, 88400 Biberach | Device for ballasting a crane |
| CN203284095U (en) * | 2013-06-05 | 2013-11-13 | 山东淄建集团有限公司 | Tower crane for cooling tower |
| CN104477789A (en) * | 2014-12-07 | 2015-04-01 | 苏州汇诚智造工业设计有限公司 | Multifunctional tower crane for building construction and manufacturing and construction methods thereof |
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| Publication number | Publication date |
|---|---|
| CN105293312A (en) | 2016-02-03 |
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Effective date of registration: 20191023 Address after: 314500 Room 401, unit 1, building 2, zitanyuan, 338 Yuanming Road, Wutong street, Tongxiang City, Jiaxing City, Zhejiang Province Patentee after: Jiaxing jinlvyan Technology Co., Ltd Address before: 315202 West Village, Jiulong Town, Zhenhai District, Zhejiang, Ningbo Patentee before: ZHENHAI CONSTRUCTION GROUP CO., LTD. |
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Effective date of registration: 20210423 Address after: 250000 Taohuashan Industrial Zone, Xiuhui sub district office, Zhangqiu District, Jinan City, Shandong Province Patentee after: SHANDONG CHANGSHENG CONSTRUCTION ENGINEERING MACHINERY Co.,Ltd. Address before: 314500 Room 401, unit 1, building 2, zitanyuan, 338 Yuanming Road, Wutong street, Tongxiang City, Jiaxing City, Zhejiang Province Patentee before: Jiaxing jinlvyan Technology Co.,Ltd. |
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