CN216005044U - Ceiling aluminum plate unit hoisting device - Google Patents

Ceiling aluminum plate unit hoisting device Download PDF

Info

Publication number
CN216005044U
CN216005044U CN202122009552.7U CN202122009552U CN216005044U CN 216005044 U CN216005044 U CN 216005044U CN 202122009552 U CN202122009552 U CN 202122009552U CN 216005044 U CN216005044 U CN 216005044U
Authority
CN
China
Prior art keywords
steel
wire rope
ceiling aluminum
aluminum plate
plate unit
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.)
Active
Application number
CN202122009552.7U
Other languages
Chinese (zh)
Inventor
崔杰
徐建军
张华杰
邓小龙
关莹
庄惠娜
李菲
黄小娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Zhongzhuang Technology Curtain Wall Engineering Co ltd
Original Assignee
Shenzhen Zhongzhuang Technology Curtain Wall Engineering Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Zhongzhuang Technology Curtain Wall Engineering Co ltd filed Critical Shenzhen Zhongzhuang Technology Curtain Wall Engineering Co ltd
Priority to CN202122009552.7U priority Critical patent/CN216005044U/en
Application granted granted Critical
Publication of CN216005044U publication Critical patent/CN216005044U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model is suitable for the technical field of wall decoration, and particularly provides a suspended ceiling aluminum plate unit hoisting device which comprises a vertical lifting mechanism, a horizontal moving mechanism and a suspender assembly; the vertical lifting mechanism comprises a power assembly for providing lifting force and a first steel wire rope connected with a power output end of the power assembly; the horizontal moving mechanism comprises a chain block which can move in the horizontal direction; the hanger rod assembly is connected with the ceiling aluminum plate unit, the first steel wire rope is connected with the hanger rod assembly, the hanger rod assembly is provided with a second steel wire rope, the second steel wire rope is used for being connected to the chain block after the hanger rod assembly is lifted to a preset position, and the hanger rod assembly drives the ceiling aluminum plate unit to move to a preassembling position by means of the first steel wire rope and the second steel wire rope. The method aims to solve the technical problems of low construction efficiency, high safety risk and long construction period in the construction of the external suspended ceiling of the super-high building in the prior art.

Description

Ceiling aluminum plate unit hoisting device
Technical Field
The utility model relates to the technical field of wall decoration, in particular to a suspended ceiling aluminum plate unit hoisting device.
Background
The unitized curtain wall has been applied to modern buildings in a large area, under normal circumstances, the unitized curtain wall is applied to the outer vertical surface of the building, and the suspended ceiling is generally used indoors, but with the continuous innovation of the building style, various special-shaped buildings and various novel shapes emerge endlessly, and the construction of the suspended ceiling outside the building can be involved; in particular to a suspended ceiling of an ultrahigh building. According to the development trend of the current building market, more and more high-rise buildings and super high-rise buildings appear. Traditional furred ceiling aluminum plate all makes the component formula basically, uses hanging flower basket or scaffold frame to go the construction, runs into the floor low, perhaps the area is little, can also solve basically, if run into this kind of large tracts of land, mounting height more than 100 meters, the molding is novel building outside furred ceiling aluminum plate again, installs just more difficultly. The traditional scaffold cannot be erected to be high from bottom to top at all; if the hanging basket is adopted, the construction efficiency is particularly slow, a great safety risk exists, the hanging basket is blown away by slight wind, the construction period is particularly long, the efficiency is particularly low, and time is wasted on the upper hanging basket and the lower hanging basket.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a ceiling aluminum plate unit hoisting device, and aims to solve the technical problems of low construction efficiency, high safety risk and long construction period in the external ceiling construction of an ultrahigh building in the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a furred ceiling aluminum plate unit hoist device includes:
the vertical lifting mechanism is positioned above the preassembly position of the suspended ceiling aluminum plate unit and comprises a power assembly for providing lifting force and a first steel wire rope connected with a power output end of the power assembly;
the horizontal moving mechanism is positioned above the preassembly position of the suspended ceiling aluminum plate unit and comprises a chain block capable of moving in the horizontal direction; and
the hanger rod assembly is connected with the ceiling aluminum plate unit, the first steel wire rope is connected with the hanger rod assembly, the hanger rod assembly is provided with a second steel wire rope, the second steel wire rope is used for being connected to the chain block after the hanger rod assembly is lifted to a preset position, and the hanger rod assembly drives the ceiling aluminum plate unit to move to the preassembly position by means of the first steel wire rope and the second steel wire rope.
In some embodiments of the utility model, the power assembly is a winch, and the first wire rope is wound on a winding drum of the winch.
In some embodiments of the present invention, the vertical lifting mechanism further includes a positioning guide bracket and a guide wheel, the positioning guide bracket is fixedly disposed, the guide wheel is rotatably disposed on the positioning guide bracket, and the winding end of the first wire rope is turned vertically downward after passing around the guide wheel so as to connect the boom assembly.
In some embodiments of the present invention, the horizontal moving mechanism further includes a horizontally disposed rail and a car body slidably connected to the rail, and the chain block is connected to the car body.
In some embodiments of the utility model, the hanger assembly includes a hanger bracket for attaching the suspended ceiling aluminum panel unit, the hanger bracket having a steel connector for connecting the steel beam at the preassembly location.
In some embodiments of the utility model, the steel connecting piece has a clamping hole capable of accommodating a steel beam wing plate, the clamping hole has a notch, and the clamping hole can penetrate from the end part of the steel beam wing plate to the steel beam wing plate and realize lap joint.
In some embodiments of the utility model, a threaded hole is further formed in the wall of the clamping hole, a bolt is arranged in the threaded hole, and the bolt enables the pushing end to push the steel beam wing plate through screwing so as to realize the positioning of the steel connecting piece on the steel beam wing plate.
In some embodiments of the utility model, the boom frame is formed by welding a plurality of vertical rods, horizontal rods and diagonal rods, and the ends of at least two of the vertical rods are connected with the steel connecting piece.
In some embodiments of the utility model, a connector link is provided on the boom assembly for connecting the first and/or second wire line.
In some embodiments of the utility model, the steel rail is an H-beam or i-beam.
The ceiling aluminum plate unit hoisting device provided by the utility model has the beneficial effects that: compared with the prior art, this device does not adopt the scaffold frame nor adopts the hanging flower basket, but through vertical lift mechanism and horizontal migration mechanism with the quick preassemble position of transporting of furred ceiling aluminum plate unit, install, it is simple swift, the security is high, greatly increased efficiency, specifically do, at first, transport predetermined position with jib subassembly and furred ceiling aluminum plate unit through the first wire rope of power component pulling, predetermine height department promptly, then be connected to second wire rope to chain block department, loosen first wire rope, thereby second wire rope bears the pulling force, remove chain block, thereby carry out horizontal position's regulation, and rely on chain block to also carry out the fine setting of height position, thereby drive furred ceiling aluminum plate unit with jib subassembly and move to preassemble the position and install.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a ceiling aluminum plate unit hoisting device provided by an embodiment of the utility model;
FIG. 2 is a schematic view of the structure of FIG. 1 in another state;
FIG. 3 is a schematic view of a portion of the enlarged structure at A in FIG. 1;
fig. 4 is a partially enlarged structural diagram of a portion B in fig. 2.
In the figure: 1. a ceiling aluminum plate unit; 2. a first wire rope; 3. a chain block; 4. a vehicle body; 5. a second wire rope; 6. a winch; 7. positioning a guide bracket; 8. a guide wheel; 9. a boom frame; 10. a steel rail; 11. a steel connector; 12. a position clamping hole; 13. a notch; 14. a bolt; 15. a steel beam.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 4, an embodiment of a ceiling aluminum plate unit lifting device according to the present invention includes a vertical lifting mechanism, a horizontal moving mechanism, and a hanger rod assembly; the device comprises a suspended ceiling aluminum plate unit 1, a vertical lifting mechanism, a lifting mechanism and a lifting mechanism, wherein the vertical lifting mechanism is positioned above a preassembly position of the suspended ceiling aluminum plate unit 1 and comprises a power assembly for providing lifting force and a first steel wire rope 2 connected with a power output end of the power assembly; the horizontal moving mechanism is positioned above the preassembly position of the suspended ceiling aluminum plate unit 1 and comprises a chain block 3 capable of moving in the horizontal direction; the suspension rod assembly is connected with a suspended ceiling aluminum plate unit 1, the first steel wire rope 2 is connected with the suspension rod assembly, the suspension rod assembly is provided with a second steel wire rope 5, the second steel wire rope 5 is used for being connected to the chain block 3 after the suspension rod assembly is lifted to a preset position, and the suspension rod assembly drives the suspended ceiling aluminum plate unit 1 to move to the preassembly position by means of the first steel wire rope 2 and the second steel wire rope 5.
In particular, the device is applied to buildings which need external ceiling operation, such as buildings in an inverted U shape, and a ceiling is required to be installed on the top of the inner side of the U-shaped structure. At the moment, a vertical lifting mechanism and a horizontal moving mechanism are arranged at the upper floor of the position where the suspended ceiling is pre-installed, the position is determined at first, the power assembly is fixed, then a chain block 3 is arranged, the chain block 3 can move, specifically can be a preset horizontal track, the chain block 3 is connected with the track in a sliding way, a first steel wire rope 2 of the power assembly hangs down to reach the ground and is connected with a suspender assembly, then the power assembly is started, the hanger rod assembly is communicated with the suspended ceiling aluminum plate unit 1 to be lifted to a preset height, then the second steel wire rope 5 is connected to the chain block 3, the first steel wire rope 2 is loosened, so that the second steel wire rope 5 bears the tensile force, the chain block 3 is moved, thereby carry out horizontal position's regulation to rely on chain block 3 to also can carry out the fine setting of height position, thereby install the jib subassembly drive furred ceiling aluminum plate unit 1 motion to the pre-installation position. The position department of installing is provided with the girder steel 15 that is used for the bearing, specifically is connected jib subassembly and girder steel 15, accomplishes installing of a furred ceiling aluminum plate unit 1, connects down to carry out the installation of next furred ceiling aluminum plate unit 1 again.
Vertical hoist mechanism and horizontal migration mechanism mutually support in this embodiment and move furred ceiling aluminum plate unit 1 to the pre-installation position, and the jib subassembly has played the effect of support and connection for connecting furred ceiling aluminum plate unit 1's structure.
The effect of this embodiment lies in, this device does not adopt the scaffold frame also not to adopt the hanging flower basket, but installs the quick transportation pre-installation position of furred ceiling aluminum plate unit 1 through vertical lift mechanism and horizontal migration mechanism, and is simple swift, and the security is high, greatly increased efficiency.
Further, as shown in fig. 1 and 2, the power assembly is preferably a winding machine 6, and the first wire rope 2 is wound on a winding drum of the winding machine 6. The winch 6 is stable in operation, abundant in power and good in controllability, and lifting of the suspender component can be achieved through winding and releasing of the winding drum.
As a preferred embodiment of this embodiment, in order to enable the first steel wire rope 2 to hang vertically downward and to accurately determine the hoisting point, the vertical lifting mechanism further includes a positioning guide bracket 7 and a guide wheel 8, wherein the positioning guide bracket 7 is installed at the upper floor, the hoisting point is predetermined, then the positioning guide bracket 7 is installed at the hoisting point, the guide wheel 8 is installed on the positioning guide bracket 7, the guide wheel 8 is aligned with the hoisting point, and then the first steel wire rope 2 bypasses the guide wheel 8 and is dropped downward.
This embodiment has realized that first wire rope 2 can aim at the hoist and mount point flagging through setting up location guide bracket 7, has increased the degree of accuracy of hoist and mount to with the help of leading wheel 8 to realize the direction of first wire rope 2, avoid causing hard friction with the building limit.
Further, as shown in fig. 1 and 2, in order to realize the movement of the chain block 3, a horizontally arranged steel rail 10 is provided, the steel rail 10 is welded in advance, a platform is provided for the movement of the chain block 3, in addition, a car body 4 is also provided, the car body 4 is provided with a roller, the roller slides on the steel rail 10, and the chain block 3 is connected with the car body 4 to realize the movement.
As the preferred embodiment of this embodiment, the jib subassembly includes jib frame 9, and jib frame 9 is the integral type structure of being connected with furred ceiling aluminum plate unit 1, and when installation furred ceiling aluminum plate unit 1, not through furred ceiling aluminum plate unit 1 lug connection, but connect through jib frame 9, avoid causing the damage to furred ceiling aluminum plate unit 1, also can guarantee simultaneously that a plurality of furred ceiling aluminum plate units 1 install through the installation of jib frame 9 and level. The mounting position can be finely adjusted by the boom frame 9. Usually, the boom frame 9 is connected by being mounted on a steel beam 15, and the steel beam 15 is a bearing body and is a preset member. In order to smoothly connect the boom frame 9 and the steel beam 15, the steel connecting member 11 is further provided on the boom frame 9, and the steel beam 15 is connected through the steel connecting member 11, which is more convenient.
Referring to fig. 1 and 2, the steel beam 15 is made of H-shaped steel, and the steel connecting member 11 is made of a structural form matching with the H-shaped steel, that is, a structural form convenient for connection, specifically, referring to the shape of the H-shaped steel, referring to fig. 3, the steel connecting member 11 is made of a form in which a clamping hole 12 is formed in the steel connecting member 11, the clamping hole 12 is a through hole, that may be rectangular, and a notch 13 is formed in an upper side of the clamping hole 12, when in use, as shown in fig. 4, the clamping hole 12 is penetrated through an end portion of a wing plate at a lower side of the steel beam 15, the notch 13 is retracted from a middle plate of the steel beam 15, so that the wing plate of the steel beam 15 can be penetrated into the clamping hole 12 to realize overlapping, the penetrating process can be finely adjusted by the chain block 3 to realize aligned insertion, after insertion, an inner wall of the clamping hole 12 is not in contact with a surface of the wing plate, at this time, the crane block 3 is moved to drive the boom frame 9, after the first steel wire rope 5 is moved to the specified installation position, the chain block 3 puts down the second steel wire rope 5, so that the inner walls of the clamping holes 12 on the two sides of the notch 13 are lapped on the wing plates of the steel beam 15 under the action of gravity to be positioned, and welding is carried out, so that thorough connection is realized.
The effect of this embodiment lies in, makes it can overlap joint girder steel 15 pterygoid lamina through setting up of screens hole 12, realizes connecting to in the in-process that moves along girder steel 15, can prevent that it from droing, increased the security.
Further, as shown in fig. 4, when the position-locking hole 12 is moved to a designated installation position and is overlapped on the wing plate of the steel beam 15 under the action of gravity, that is, before welding, in order to further prevent the movement of the steel connecting piece 11, a threaded hole is further provided on the hole wall of the position-locking hole 12, a bolt 14 is provided in the threaded hole, the bolt 14 pushes the pushing end to push the wing plate of the steel beam 15 by screwing, so that the wing plate of the steel beam 15 is clamped between the pushing end of the bolt 14 and the lower side hole wall of the position-locking hole 12, the steel connecting piece 11 is positioned on the wing plate of the steel beam 15, the movement in the welding process is prevented, and then welding is performed.
This embodiment has set up the location form of screw hole and bolt 14, can further prevent the removal of steel connecting piece 11, ensures the accuracy of furred ceiling aluminum plate mounted position.
Further, the boom frame 9 is formed by welding a plurality of vertical rods, horizontal rods and diagonal rods, and the boom frame 9 can be any form of connection combination under the condition of ensuring enough rigidity and stability, but at least two vertical rods are needed because the ends of the vertical rods are used for connecting the steel connecting pieces 11, preferably the ends of four vertical rods are connected with the steel connecting pieces 11. This maintains the reliability and stability of the connection.
And a connecting buckle for connecting the first steel wire rope 2 and/or the second steel wire rope 5 is arranged on the suspender component.
Specifically, in order to ensure the stability of the hoisting process, four second steel wire ropes 5 can be selected and symmetrically arranged on the boom frame 9, and the first steel wire ropes 2 are also formed into four strands at the tail end, namely the lowest end, and are respectively connected with the boom frame 9 to keep stable. The steel rail 10 is H-shaped steel or i-shaped steel.
Compared with the prior art, this device does not adopt the scaffold frame nor adopts the hanging flower basket, but through vertical lift mechanism and horizontal migration mechanism with the quick transportation pre-installation position of transporting of furred ceiling aluminum plate unit, installs, and is simple swift, and the security is high, greatly increased efficiency.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. Furred ceiling aluminum plate unit hoist device, its characterized in that includes:
the vertical lifting mechanism is positioned above the preassembly position of the suspended ceiling aluminum plate unit and comprises a power assembly for providing lifting force and a first steel wire rope connected with a power output end of the power assembly;
the horizontal moving mechanism is positioned above the preassembly position of the suspended ceiling aluminum plate unit and comprises a chain block capable of moving in the horizontal direction; and
the hanger rod assembly is connected with the ceiling aluminum plate unit, the first steel wire rope is connected with the hanger rod assembly, the hanger rod assembly is provided with a second steel wire rope, the second steel wire rope is used for being connected to the chain block after the hanger rod assembly is lifted to a preset position, and the hanger rod assembly drives the ceiling aluminum plate unit to move to the preassembly position by means of the first steel wire rope and the second steel wire rope.
2. The ceiling aluminum panel unit lifting device according to claim 1, wherein the power assembly is a winch, and the first wire rope is wound on a winding drum of the winch.
3. The ceiling aluminum plate unit hoisting device according to claim 2, wherein the vertical lifting mechanism further comprises a positioning guide bracket and a guide wheel, the positioning guide bracket is fixedly arranged, the guide wheel is rotatably arranged on the positioning guide bracket, and the winding end of the first steel wire rope is turned vertically downwards after passing around the guide wheel so as to be connected with the suspender assembly.
4. The ceiling aluminum plate unit hoisting device according to any one of claims 1 to 3, wherein the horizontal moving mechanism further comprises a horizontally arranged steel rail and a trolley body slidably connected to the steel rail, and the chain block is connected to the trolley body.
5. The ceiling aluminum panel unit hanger of claim 1, wherein the hanger assembly comprises a hanger bracket for attaching the ceiling aluminum panel unit, the hanger bracket having steel connectors for connecting the steel beams at the preassembly location.
6. A suspended ceiling aluminum plate unit hoisting device as claimed in claim 5, wherein the steel connecting piece is provided with a clamping hole capable of accommodating a steel beam wing plate, the clamping hole is provided with a notch, and the clamping hole can penetrate from the end part of the steel beam wing plate to the steel beam wing plate and realize lap joint.
7. The ceiling aluminum plate unit hoisting device according to claim 6, wherein a threaded hole is further formed in the wall of the clamping hole, a bolt is arranged in the threaded hole, and the bolt enables the pushing end to push against the steel beam wing plate through screwing so as to realize the positioning of the steel connecting piece on the steel beam wing plate.
8. A suspended ceiling aluminum panel unit lifting device as recited in claim 5, wherein the hanger bracket is formed by welding a plurality of vertical bars, cross bars and diagonal bars, and the ends of at least two of the vertical bars are connected to the steel connectors.
9. A suspended ceiling aluminum panel unit hoist as claimed in claim 1, wherein a connector link for connecting a first wire rope and/or a second wire rope is provided on the hanger assembly.
10. A suspended ceiling aluminum panel unit lifting device as claimed in claim 4, wherein the steel rail is H-section steel or I-section steel.
CN202122009552.7U 2021-08-24 2021-08-24 Ceiling aluminum plate unit hoisting device Active CN216005044U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122009552.7U CN216005044U (en) 2021-08-24 2021-08-24 Ceiling aluminum plate unit hoisting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122009552.7U CN216005044U (en) 2021-08-24 2021-08-24 Ceiling aluminum plate unit hoisting device

Publications (1)

Publication Number Publication Date
CN216005044U true CN216005044U (en) 2022-03-11

Family

ID=80533498

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122009552.7U Active CN216005044U (en) 2021-08-24 2021-08-24 Ceiling aluminum plate unit hoisting device

Country Status (1)

Country Link
CN (1) CN216005044U (en)

Similar Documents

Publication Publication Date Title
CN216005044U (en) Ceiling aluminum plate unit hoisting device
CN201713229U (en) Steel box girder cable-loaded crane for suspension bridge construction
CN210795435U (en) Synchronous construction elevator
CN216235734U (en) Vertical transportation hoisting structure for curtain wall unit plate
CN207061699U (en) A kind of large-scale tower crane tower section introduces jacking system
CN217266977U (en) Rhombic hanging basket structure for installation of corrugated steel web
CN220684425U (en) Adjustable hanger for concrete prefabricated part
CN217230031U (en) Subway tunnel hoist device
CN216997240U (en) Lifting appliance system
CN218114849U (en) Curtain wall material hoisting device
CN218290206U (en) Construction layer material transportation device based on building machine
CN211081059U (en) Hoisting device for unit plate of curtain wall with curved outer vertical surface
CN217871735U (en) Hanging basket for building facade with complex shape
CN114214941B (en) Inverted lifting equipment for installing steel girder of separated suspension bridge and construction method thereof
CN216711436U (en) Tower machine holds in palm rope device
CN218758648U (en) Hanging basket structure for curved curtain wall construction
CN217377106U (en) Arm type lifting device for beam box production
CN217102749U (en) Roof large-scale steel beam sliding system
CN218619918U (en) Steel wire rope supporting device for long-distance hoisting of tower-type small gun carrier
CN216613775U (en) Connect stable capable of hanging
CN220098375U (en) Electric control device for vertical transportation of unit plates
CN220182602U (en) Hoisting structure
CN218778649U (en) Curtain wall mounting device for steel structure truss beam
CN215479336U (en) Introducing system for tower crane and tower crane
CN220827134U (en) Hoisting device and hoisting system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant