CN113548589A - Hoisting method for high-rise building construction - Google Patents
Hoisting method for high-rise building construction Download PDFInfo
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- CN113548589A CN113548589A CN202110812011.XA CN202110812011A CN113548589A CN 113548589 A CN113548589 A CN 113548589A CN 202110812011 A CN202110812011 A CN 202110812011A CN 113548589 A CN113548589 A CN 113548589A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000009435 building construction Methods 0.000 title claims abstract description 24
- 238000010276 construction Methods 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000004566 building material Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 10
- 230000006978 adaptation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000004035 construction material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000002407 reforming Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- 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
- B66C23/02—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 with non-adjustable and non-inclinable jibs mounted solely for slewing movements
- B66C23/022—Pivot axis common with column
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- 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
- B66C23/26—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 for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
- B66C23/28—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 for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels
- B66C23/283—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 for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels with frameworks composed of assembled elements
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- 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
-
- 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
-
- 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
- B66C23/84—Slewing gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a hoisting method, particularly relates to a hoisting method for high-rise building construction, and belongs to the technical field of building engineering construction processes. The hoisting method for the high-rise building construction can obviously improve the transfer efficiency and is not easy to cause safety accidents in the construction. The hoisting method comprises the steps of modifying the existing tower crane, adding a lower hoisting system with an auxiliary crane boom of which the length is smaller than that of a main crane boom, manufacturing the lower hoisting system, then installing the tower crane on a construction site, and simultaneously installing the lower hoisting system on a tower body below the upper hoisting system of the tower crane, hoisting materials outside the high-rise building in place through the upper hoisting system according to needs during hoisting, hoisting materials inside the high-rise building in place through the lower hoisting system, hoisting and placing materials inside the high-rise building in place through a jacking sleeve frame system, and lifting the upper hoisting system and the lower hoisting system at the same time of additionally installing a standard section of the tower body through the jacking sleeve frame system.
Description
Technical Field
The invention relates to a hoisting method, in particular to a hoisting method for high-rise building construction, and belongs to the technical field of building engineering construction processes.
Background
The problem of low working efficiency of hoisting construction materials is prominent because only one tower crane is usually used alone in the construction of high-rise building buildings. If a plurality of tower cranes of the same type are installed, the lifting operation of a construction working surface is influenced, the investment cost is obviously increased, and the crane boom is easy to collide during operation and rotation, so that serious potential safety hazards exist; therefore, the construction unit is always puzzled by the hoisting of construction materials in the construction process.
The utility model discloses a utility model patent that publication number is CN202021708413.2 provides a hoisting device for bridge construction, including lower chassis and mounting bracket, the top swing joint on chassis has last chassis down, and goes up both ends fixedly connected with locking post about the top on chassis, the top fixedly connected with support column on going up the chassis, and the electronic extension frame of top fixedly connected with of support column, the electronic slide rail of the inside left and right sides fixedly connected with of mounting bracket, and the mounting bracket is located the upper end of electronic extension frame. This hoisting device is used in bridge construction compares with current ordinary overhead hoist, and the device angle is convenient for adjust with high, can operate by oneself according to the user demand, also is convenient for install and dismantles, has reduced constructor's work load, is provided with the guardrail and can protect the constructor and also be convenient for get into the regulation and control room, has increased the security of operation, can adjust the angle of lifting hook through the control regulating spindle for the lifting hook handling heavy object of being more convenient for. The single-arm single hook adopted by the lifting device cannot improve the construction progress fundamentally, and meanwhile compared with the existing tower crane, the lifting device is only changed from a fixed mode into a moving mode, so that the problem of mutual dry-derivative of simultaneous construction is not solved, and meanwhile, due to the structural moving mode, the height of the lifting device is greatly limited, and the lifting device is not suitable for lifting of materials for highly-strange building construction.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the hoisting method for the high-rise building construction can obviously improve the transfer efficiency and is not easy to cause safety accidents in the construction.
The technical scheme adopted for solving the technical problems is as follows: a lifting method for high-rise building construction comprises the following steps,
a) the existing tower crane is modified, a lower lifting system with the length of the auxiliary crane arm smaller than that of the main crane arm is added,
b) the lower lifting system is manufactured in a factory according to a design drawing,
c) the tower crane is installed in a construction site where high-rise building construction is needed, the lower hoisting system is installed on a tower body below the upper hoisting system of the tower crane,
d) according to the positions of building materials and equipment facilities to be lifted, materials outside the high-rise building are lifted in place by the upper lifting system, materials inside the high-rise building are lifted in place by the lower lifting system,
e) according to the construction progress of high-rise building, rise when in good time installing the tower body standard festival through the jacking cover frame system of tower crane as required the upper portion handling system with lower part handling system to the handling work of the material of adaptation different floor height.
The upper hoisting system comprises a main crane boom, a main balance mechanism and an upper rotary assembly, wherein the main crane boom and the main balance mechanism which are arranged on two sides of the upper rotary assembly are movably arranged at the top of the tower body through the upper rotary assembly, and the lower hoisting system is arranged on the tower body between the jacking sleeve frame system and the upper hoisting system.
In a preferred mode of the above scheme, the lower lifting system comprises an auxiliary crane boom, an auxiliary balance mechanism and a lower rotary mounting mechanism, wherein the auxiliary crane boom and the auxiliary balance mechanism which are arranged on two sides of the lower rotary mounting mechanism are movably arranged on the tower body below the upper lifting system through the lower rotary mounting mechanism.
Further, the auxiliary balance mechanism comprises an auxiliary balance arm and an auxiliary balance weight, the auxiliary balance weight is arranged at one end of the auxiliary balance arm, and the auxiliary balance arm is connected with the lower rotary mounting mechanism through the other end of the auxiliary balance arm.
In a preferred mode of the above scheme, the lower slewing mounting mechanism comprises a lower slewing assembly and an outer arm support, the outer arm support is arranged on the tower body below the upper hoisting system through the lower slewing assembly, and the auxiliary boom and the auxiliary balance arm are respectively arranged on two sides of the outer arm support.
Further, the lower rotary mounting mechanism further comprises a fixing column, and the lower rotary assembly is arranged on the tower body below the upper lifting system through the fixing column.
The preferable mode of the scheme is that the fixing column is a part of the tower body at the corresponding position or a square body formed by four thickened vertical rods, and the upper part and the lower part of the square body are respectively coaxially connected with the tower body to form a whole.
The invention has the beneficial effects that: the construction method that this application provided uses current tower crane as the basis, through reforming transform the base, increases the lower part handling system that sets up vice jib loading boom length and be less than main jib loading boom to accomplish according to design drawing preparation in the mill lower part handling system, then carry out the tower crane installation in the construction place that high-rise building was under construction again, and will simultaneously lower part handling system install on the tower body of the lower part handling system's of upper portion handling system of tower crane, like this with the position of building material and the equipment and facility of handling as required, make the goods and materials in the high-rise building outside pass through upper portion handling system handling, make the goods and materials of high-rise building inboard pass through lower part handling system handling, simultaneously, according to the construction progress of high-rise building again at the handling in-process of material, according to the construction progress of high-rise building, rise when in good time through the jacket frame system of tower crane dress tower body standard festival rising simultaneously the upper portion handling system with the jacking is risen The lower part handling system to the handling work of the material of adaptation different floor height. Therefore, the construction method provided by the application realizes that the upper and lower suspension arms with different lengths of the suspension arm are respectively arranged on the same tower crane by transforming the existing tower crane, and then the building materials at different positions are respectively hoisted according to the different lengths of the suspension arms, so that more tower cranes do not need to be additionally installed, the construction cost is reduced, meanwhile, the suspension arms are completely different in length, and the building materials at different positions are hoisted according to the different lengths of the suspension arms, the potential safety hazard can be avoided when a plurality of tower cranes are used, and the purpose of effectively improving the hoisting efficiency can be achieved by simultaneously hoisting the building materials at different positions.
Drawings
FIG. 1 is a front view of a tower crane involved in the hoisting method for high-rise building construction of the present invention;
fig. 2 is a sectional view a-a of fig. 1.
Labeled as: the lifting device comprises a lower lifting system 1, an upper lifting system 2, a tower body 3, a jacking sleeve frame system 4, a main crane boom 5, a main balance mechanism 6, an upper rotary assembly 7, an auxiliary crane boom 8, an auxiliary balance mechanism 9, a lower rotary mounting mechanism 10, an auxiliary balance arm 11, an auxiliary balance weight 12, a lower rotary assembly 13, an outer holding arm frame 14 and a fixed column 15.
Detailed Description
As shown in figures 1 and 2, the lifting method for high-rise building construction, which can obviously improve the transfer efficiency and is not easy to cause safety accidents in the construction, is provided by the invention. The hoisting method comprises the following steps of,
a) the existing tower crane is modified, a lower lifting system 1 with the length of an auxiliary crane arm smaller than that of a main crane arm is added,
b) the lower lifting system 1 is manufactured in a factory according to a design drawing,
c) the tower crane is installed in a construction site where high-rise building construction is needed, the lower lifting system 1 is installed on a tower body 3 below an upper lifting system 2 of the tower crane,
d) according to the positions of building materials and equipment facilities to be lifted, materials outside the high-rise building are lifted in place by the upper lifting system 2, materials inside the high-rise building are lifted in place by the lower lifting system 1,
e) according to the construction progress of high-rise building, the tower body standard knot is additionally arranged through the jacking sleeve frame system 4 of the tower crane according to needs in due time, and the upper lifting system 2 and the lower lifting system 1 are lifted at the same time so as to adapt to the lifting work of materials with different heights. The construction method that this application provided uses current tower crane as the basis, through reforming transform the base, increases the lower part handling system that sets up vice jib loading boom length and be less than main jib loading boom to accomplish according to design drawing preparation in the mill lower part handling system, then carry out the tower crane installation in the construction place that high-rise building was under construction again, and will simultaneously lower part handling system install on the tower body of the lower part handling system's of upper portion handling system of tower crane, like this with the position of building material and the equipment and facility of handling as required, make the goods and materials in the high-rise building outside pass through upper portion handling system handling, make the goods and materials of high-rise building inboard pass through lower part handling system handling, simultaneously, according to the construction progress of high-rise building again at the handling in-process of material, according to the construction progress of high-rise building, rise when in good time through the jacket frame system of tower crane dress tower body standard festival rising simultaneously the upper portion handling system with the jacking is risen The lower part handling system to the handling work of the material of adaptation different floor height. Therefore, the construction method provided by the application realizes that the upper and lower suspension arms with different lengths of the suspension arm are respectively arranged on the same tower crane by transforming the existing tower crane, and then the building materials at different positions are respectively hoisted according to the different lengths of the suspension arms, so that more tower cranes do not need to be additionally installed, the construction cost is reduced, meanwhile, the suspension arms are completely different in length, and the building materials at different positions are hoisted according to the different lengths of the suspension arms, the potential safety hazard can be avoided when a plurality of tower cranes are used, and the purpose of effectively improving the hoisting efficiency can be achieved by simultaneously hoisting the building materials at different positions.
In the above embodiment, in order to reduce the transformation cost, facilitate the hoisting operation in the using process and ensure the installation of the hoisting operation, the present application combines the existing characteristics that the upper hoisting system 2 comprises the main boom 5, the main balance mechanism 6 and the upper slewing assembly 7, the main boom 5 and the main balance mechanism 6 arranged at two sides of the upper slewing assembly 7 are movably arranged at the top of the tower body 3 through the upper slewing assembly 7, and the lower hoisting system 1 is arranged on the tower body 3 between the jacking sleeve frame system 4 and the upper hoisting system 2. Thus, the present application sets the lower hoist system 1 to a structure including the sub-boom 8, the sub-balance mechanism 9, and the lower slewing mounting mechanism 10, and the sub-boom 8 and the sub-balance mechanism 9 disposed on both sides of the lower slewing mounting mechanism 10 are movably disposed on the tower body 3 below the upper hoist system 2 by the lower slewing mounting mechanism 10. Correspondingly, the secondary balance mechanism 9 comprises a secondary balance arm 11 and a secondary balance weight 12, the secondary balance weight 12 is arranged at one end of the secondary balance arm 11, and the secondary balance arm 11 is connected with the lower rotary mounting mechanism 10 through the other end of the secondary balance arm. The lower rotary mounting mechanism 10 comprises a lower rotary assembly 13 and an outer arm holding frame 14, the outer arm holding frame 14 is arranged on the tower body 3 below the upper hoisting system 2 through the lower rotary assembly 13, and the auxiliary boom 11 and the auxiliary balance arm 11 are respectively arranged on two sides of the outer arm holding frame 14. And the lower rotary mounting mechanism 10 also comprises a fixed column 15, and the lower rotary assembly 13 is arranged on the tower body 3 below the upper lifting system 2 through the fixed column 15. The fixed column 15 is a part of a tower body at a corresponding position or a square body formed by four thickened vertical rods, and the upper part and the lower part of the square body are respectively coaxially connected with the tower body to form a whole.
To sum up, the technical scheme that this application provided aims at providing a high-rise building construction combination formula handling method to the current situation in the background to can reach material-saving, safe purpose, only use a tower crane alone to cause the problem that work efficiency is low usually in order to solve high-rise building construction. By adopting the combined hoisting method for high-rise building construction, 2 tower cranes consisting of 1 tower body are used for hoisting construction in a subarea manner, so that the construction progress of the high-rise building can be greatly accelerated; and achieves the purposes of saving materials and safely lifting.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In order to solve the technical problem, the technical scheme adopted by the application is as follows:
the hoisting method for high-rise building construction comprises the following steps: the upper part of the tower body is provided with a lower tower crane rotation assembly and an outer shaft group, an outer holding arm frame is arranged between the balance arm and the crane arm, and the balance weight is set according to calculation; the lower tower crane lifting hook of the load-carrying trolley carries out the lifting work of the inner side of the high-rise building;
further, a tower crane rotation assembly is mounted on the upper portion of the fixing column, and the tower crane is mounted to carry out hoisting work on the outer side of the high-rise building; and (5) installing a standard section tower body in the climbing jacket frame area.
Claims (7)
1. A hoisting method for high-rise building construction is characterized in that: the hoisting method comprises the following steps of,
a) the existing tower crane is improved, a lower lifting system (1) with the length of an auxiliary crane arm smaller than that of a main crane arm is added,
b) the lower lifting system (1) is manufactured in a factory according to a design drawing,
c) the tower crane is installed in a construction site where high-rise building construction is needed, the lower lifting system (1) is installed on a tower body (3) below an upper lifting system (2) of the tower crane at the same time,
d) according to the positions of building materials and equipment facilities to be lifted, materials outside the high-rise building are lifted in place by the upper lifting system (2), materials inside the high-rise building are lifted in place by the lower lifting system (1),
e) according to the construction progress of high-rise building, the tower body standard knot is lifted at the same time through a jacking sleeve frame system (4) of the tower crane according to needs in due time, and the upper lifting system (2) and the lower lifting system (1) are adapted to lifting work of materials with different heights.
2. The hoisting method for high-rise building construction according to claim 1, characterized in that: the upper lifting system (2) comprises a main crane boom (5), a main balance mechanism (6) and an upper rotary assembly (7), the main crane boom (5) and the main balance mechanism (6) which are arranged on two sides of the upper rotary assembly (7) are movably arranged at the top of the tower body (3) through the upper rotary assembly (7), and the lower lifting system (1) is arranged on the tower body (3) between the jacking sleeve frame system (4) and the upper lifting system (2).
3. The hoisting method for high-rise building construction according to claim 1 or 2, characterized in that: the lower lifting system (1) comprises an auxiliary crane boom (8), an auxiliary balance mechanism (9) and a lower rotary mounting mechanism (10), wherein the auxiliary crane boom (8) and the auxiliary balance mechanism (9) which are arranged at two sides of the lower rotary mounting mechanism (10) are movably arranged on the tower body (3) below the upper lifting system (2) through the lower rotary mounting mechanism (10).
4. The hoisting method for high-rise building construction according to claim 3, characterized in that: the auxiliary balance mechanism (9) comprises an auxiliary balance arm (11) and an auxiliary balance weight (12), the auxiliary balance weight (12) is arranged at one end of the auxiliary balance arm (11), and the auxiliary balance arm (11) is connected with the lower rotary mounting mechanism (10) through the other end of the auxiliary balance arm.
5. The hoisting method for high-rise building construction according to claim 4, characterized in that: the lower rotary mounting mechanism (10) comprises a lower rotary assembly (13) and an outer arm-embracing frame (14), the outer arm-embracing frame (14) is arranged on the tower body (3) below the upper hoisting system (2) through the lower rotary assembly (13), and the auxiliary boom (11) and the auxiliary balance arm (11) are respectively arranged at two sides of the outer arm-embracing frame (14).
6. The hoisting method for high-rise building construction according to claim 5, characterized in that: the lower rotary mounting mechanism (10) further comprises a fixing column (15), and the lower rotary assembly (13) is arranged on the tower body (3) below the upper lifting system (2) through the fixing column (15).
7. The hoisting method for high-rise building construction according to claim 6, characterized in that: the fixed column (15) is a part of a tower body at a corresponding position or a square body formed by four thickened vertical rods, and the upper part and the lower part of the square body are respectively coaxially connected with the tower body to form a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110812011.XA CN113548589A (en) | 2021-07-19 | 2021-07-19 | Hoisting method for high-rise building construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110812011.XA CN113548589A (en) | 2021-07-19 | 2021-07-19 | Hoisting method for high-rise building construction |
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| CN113548589A true CN113548589A (en) | 2021-10-26 |
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| CN202110812011.XA Pending CN113548589A (en) | 2021-07-19 | 2021-07-19 | Hoisting method for high-rise building construction |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201901539U (en) * | 2010-09-27 | 2011-07-20 | 中昇建机(南京)重工有限公司 | Internal climbing type and external climbing type tower crane with luffing jib |
| US20160289051A1 (en) * | 2015-03-30 | 2016-10-06 | Oil States Industries, Inc. | Crane Having Effectively Coincident Gantry and Boom Forces Upon an Upperstructure |
| CN205873721U (en) * | 2016-08-12 | 2017-01-11 | 孟庆新 | Double -deck tower crane |
| CN206203717U (en) * | 2016-11-17 | 2017-05-31 | 张重哲 | A kind of Multifunctional tower crane |
| CN210764025U (en) * | 2019-10-12 | 2020-06-16 | 王永正 | Multi-arm safety tower crane |
| CN211971573U (en) * | 2020-03-24 | 2020-11-20 | 河南省路桥建设集团有限公司 | Double-arm tower crane |
-
2021
- 2021-07-19 CN CN202110812011.XA patent/CN113548589A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201901539U (en) * | 2010-09-27 | 2011-07-20 | 中昇建机(南京)重工有限公司 | Internal climbing type and external climbing type tower crane with luffing jib |
| US20160289051A1 (en) * | 2015-03-30 | 2016-10-06 | Oil States Industries, Inc. | Crane Having Effectively Coincident Gantry and Boom Forces Upon an Upperstructure |
| CN205873721U (en) * | 2016-08-12 | 2017-01-11 | 孟庆新 | Double -deck tower crane |
| CN206203717U (en) * | 2016-11-17 | 2017-05-31 | 张重哲 | A kind of Multifunctional tower crane |
| CN210764025U (en) * | 2019-10-12 | 2020-06-16 | 王永正 | Multi-arm safety tower crane |
| CN211971573U (en) * | 2020-03-24 | 2020-11-20 | 河南省路桥建设集团有限公司 | Double-arm tower crane |
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Application publication date: 20211026 |