CN215924161U

CN215924161U - Lifting lug for dismounting working of overlong overhanging steel structure cornice of high-rise building

Info

Publication number: CN215924161U
Application number: CN202121239644.8U
Authority: CN
Inventors: 单首栋; 王美惠; 王海达; 张志威; 张博; 刘杰
Original assignee: China Construction Eighth Engineering Division Co Ltd
Current assignee: China Construction Eighth Engineering Division Co Ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2022-03-01
Anticipated expiration: 2031-06-04

Abstract

The utility model discloses a lifting lug for dismounting an overlong overhanging steel structure cornice of a high-rise building, which comprises a bottom plate (1), a top plate (2), a limiting rod (3), a screw (4), a lifting lug (7) and a locking nut (10); the plurality of limiting rods are vertically connected with the bottom plate and the screw rod, the screw rod vertically penetrates through the top plate through the through hole, and the top and the bottom of the top plate are locked on the screw rod through locking nuts, so that an annular structure is formed among the bottom plate, the top plate, the limiting rods and the screw rod; the overhanging steel structure cornice penetrates through the overhanging ring-shaped structure, and the top surface and the bottom surface of the overhanging steel structure cornice are tightly pressed by the bottom plate and the top plate; the lifting lug is arranged at the top of the top plate, and a lifting hole (8) is formed in the middle of the lifting lug. The steel wire rope lifting device can be stably and reliably installed on the overhanging steel structure cornice, and is quickly connected and fixed with a steel wire rope of lifting equipment through the lifting lugs, so that the overhanging steel structure cornice is convenient to disassemble and lift, the stability and the safety in the lifting process are ensured, the disassembly and the assembly are convenient and quick, and the operation efficiency is improved.

Description

Lifting lug for dismounting working of overlong overhanging steel structure cornice of high-rise building

Technical Field

The utility model relates to high-rise building construction auxiliary equipment, in particular to a lifting lug for dismounting an eave of an ultra-long overhanging steel structure of a high-rise building.

Background

In recent years, with the continuous transformation and upgrading of city centers, transformation projects as brand-new building blocks gradually occupy important shares in the building markets, wherein the transformation projects of high-rise buildings are taken as the first, the transformation conditions are complex, the disassembly and modification difficulty is large, and great challenges are brought to building construction.

Due to the practical appearance requirements of high-rise buildings, overhanging steel structure cornices may be arranged on the high-rise buildings, the steel structure cornices are long in length, high in height from the ground and large in self weight, and cannot be dismantled in the modes of crank arm lifting platforms, erection of overhanging operation platforms or vertical transportation of truck cranes and the like. In the prior art, the overhanging steel structure cornice can only be subjected to subsection hoisting by adopting a subsection cutting mode and then being matched with a roof tower crane, so that the integral dismantling of the overhanging steel structure cornice is realized.

In the dismantling process of the overhanging steel structure cornice, the selection of a hanging point and a lifting lug is very important when the cornice is hoisted in a segmented mode, the hanging point needs to find out a stress balance point, the cornice can be kept balanced in the hoisting and hoisting processes, and instability is avoided. However, the lifting lugs of the overhanging steel structure cornice are cut off after the installation and welding are completed, and no lifting lug can be used when the overhanging steel structure cornice is removed, so that the hoisting steel wire rope can only be directly bound on the cornice steel beam or bound after the steel beam web plate is punched, and then the cornice is hoisted, so that the great potential safety hazard exists, and major safety accidents are easy to happen.

Disclosure of Invention

The utility model aims to provide a lifting lug for removing an overlong overhanging steel structure cornice of a high-rise building, which can be stably and reliably arranged on the overhanging steel structure cornice, and can be quickly connected and fixed with a steel wire rope of a lifting device through the lifting lug, so that the overhanging steel structure cornice can be conveniently detached and lifted, the stability and the safety in the lifting process are ensured, the dismounting and the mounting are convenient and quick, and the working efficiency is improved.

The utility model is realized by the following steps:

a lifting lug for the operation of dismantling the ultra-long overhanging steel structure cornice of a high-rise building comprises a bottom plate, a top plate, a limiting rod, a screw, a lifting lug and a locking nut; the lower ends of the plurality of limiting rods are respectively and vertically arranged at the corners of the bottom plate, and the lower ends of the plurality of screw rods are respectively and correspondingly connected with the upper ends of the plurality of limiting rods; a plurality of through holes are formed at the corners of the top plate, so that a plurality of screws can vertically penetrate through the top plate through the plurality of through holes respectively, and the top and the bottom of the top plate are locked on the plurality of screws through a plurality of locking nuts respectively, so that an annular structure is formed among the bottom plate, the top plate, the plurality of limiting rods and the plurality of screws; the overhanging steel structure cornice penetrates through the overhanging ring-shaped structure, and the bottom plate and the top plate can be respectively pressed on the top surface and the bottom surface of the overhanging steel structure cornice; the lifting lug is fixedly arranged at the top of the top plate, and a lifting hole is formed in the middle of the lifting lug.

The base plate on the symmetry install a pair of auxiliary clamping component, a pair of auxiliary clamping component is located the both sides portion of base plate respectively, makes a pair of auxiliary clamping component can correspond respectively and compress tightly on the both sides terminal surface of overhanging steel construction eaves.

Each group of auxiliary clamping assemblies comprises a straight plate, a threaded rod, a clamping plate and a limiting rotating shaft; the straight plate is vertically arranged on the bottom plate, and a threaded hole is formed in the straight plate, so that the threaded rod vertically penetrates through the straight plate through the threaded hole and is screwed with the straight plate; one end of the threaded rod is rotatably connected with the holding plate through a limiting rotating shaft, so that the vertically arranged holding plate can move through the threaded rod and is pressed on the side end face of the overhanging steel structure cornice.

The straight plate and the holding plate are provided with a plurality of limiting springs at intervals, and the limiting springs are symmetrically distributed around the threaded rod and are arranged in parallel with the threaded rod.

The clamping plate is provided with an anti-skid pad, and the clamping plate is attached to the side end face of the overhanging steel structure cornice through the anti-skid pad.

The other end of the threaded rod is provided with a handle flange.

The bottom plate and the top plate are provided with positioning spring rods, and the tops of the positioning spring rods are attached to the bottom surface of the top plate through positioning discs.

The front end and the rear end of the top plate are respectively provided with a fixing groove, and the scale rod is embedded in the fixing grooves.

The one end of scale bar install the damping pivot, make the one end of scale bar can install the one end at the fixed slot through the damping pivot, and the scale bar can rotate around the damping pivot.

And a base plate is arranged between the locking nut and the top surface and the bottom surface of the top plate, and the screw penetrates through the base plate.

Compared with the prior art, the utility model has the following beneficial effects:

1. the cantilever steel structure cornice is provided with the bottom plate, the top plate, the limiting rod and the screw to form an annular structure, can be quickly and conveniently installed on the overhanging steel structure cornice through threaded screwing and nut locking, and is convenient to disassemble and assemble and high in installation stability; simultaneously, the overhanging steel structure cornice is clamped from two sides through the pair of auxiliary clamping assemblies, so that the connection reliability between the annular structure and the overhanging steel structure cornice is further ensured, and the stability and the safety during the dismounting and hoisting are ensured.

2. The lifting lugs are arranged and fixed on the top plate of the annular structure, so that the steel wire rope can be quickly and reliably connected with the steel wire rope of the lifting equipment through the lifting holes, and the lifting equipment is convenient and quick to disassemble and assemble, so that the cut overhanging steel structure cornice and the annular structure can be synchronously lifted, the disassembly operation of the overhanging steel structure cornice is assisted, and the operation efficiency is improved.

3. The utility model can accurately control the cutting position of the overhanging steel structure cornice due to the arrangement of the scale rod, can be accommodated in the fixed groove through the damping rotating shaft when the scale rod is not used, is convenient for the scale rod to be used at any time, and can play a role in protecting and preventing the scale rod from being lost.

Drawings

FIG. 1 is a perspective view of a lifting lug for the operation of dismantling the eave of an ultra-long overhanging steel structure of a high-rise building;

FIG. 2 is a schematic structural diagram of a top plate in a lifting lug for the operation of dismantling the eave of the ultra-long overhanging steel structure of the high-rise building;

FIG. 3 is a schematic structural diagram of a scale rod in a lifting lug for the operation of dismantling the eave of the ultra-long overhanging steel structure of the high-rise building;

FIG. 4 is a schematic structural diagram of an auxiliary clamping assembly in a lifting lug for the operation of dismantling the eave of the ultra-long overhanging steel structure of the high-rise building.

In the figure, a bottom plate 1, a top plate 2, a limiting rod 3, a screw rod 4, a positioning spring rod 5, a straight plate 6, a lifting lug 7, a lifting hole 8, a backing plate 9, a locking nut 10, a fixing groove 11, a scale rod 12, a damping rotating shaft 13, a threaded rod 14, a limiting spring 15, a clamping plate 16 and a limiting rotating shaft 17 are arranged.

Detailed Description

The utility model is further described with reference to the following figures and specific examples.

Referring to fig. 1 and 2, a lifting lug for the operation of dismantling the eave of the ultra-long overhanging steel structure of a high-rise building comprises a bottom plate 1, a top plate 2, a limiting rod 3, a screw rod 4, a lifting lug 7 and a lock nut 10; the lower ends of a plurality of limiting rods 3 are respectively and vertically arranged at the corners of the bottom plate 1, and the lower ends of a plurality of screw rods 4 are respectively and correspondingly connected with the upper ends of a plurality of limiting rods 3; a plurality of through holes are formed at the corners of the top plate 2, so that a plurality of screw rods 4 can vertically penetrate through the top plate 2 through the plurality of through holes respectively, and the top and the bottom of the top plate 2 are locked on the plurality of screw rods 4 through a plurality of locking nuts 10 respectively, so that an annular structure is formed among the bottom plate 1, the top plate 2, a plurality of limiting rods 3 and a plurality of screw rods 4; the overhanging steel structure cornice penetrates through the overhanging ring-shaped structure, and the bottom plate 1 and the top plate 2 can be respectively pressed on the top surface and the bottom surface of the overhanging steel structure cornice; the lifting lug 7 is fixedly arranged at the top of the top plate 2, and a lifting hole 8 is formed in the middle of the lifting lug 7. The annular structure is fixed on the overhanging steel structure cornice, so that the overhanging steel structure cornice can be hoisted through the lifting lugs 7, and the safety accident that the overhanging steel structure cornice falls off when the steel wire rope of the hoisting equipment is directly bound with the steel beam of the overhanging steel structure cornice or is punched and bound with the hoisting possibly caused is avoided.

Referring to fig. 1 and fig. 4, a pair of auxiliary clamping assemblies is symmetrically mounted on the base plate 1, and the pair of auxiliary clamping assemblies are respectively located at two side portions of the base plate 1, so that the pair of auxiliary clamping assemblies can be respectively and correspondingly pressed on two side end surfaces of an overhanging steel structure eave. A pair of auxiliary clamping assembly presss from both sides tight overhanging steel structure cornice from both sides, can further improve the connection reliability and the stability between annular structure and the overhanging steel structure cornice to security when guaranteeing the handling.

Each group of auxiliary clamping components comprises a straight plate 6, a threaded rod 14, a clamping plate 16 and a limiting rotating shaft 17; the straight plate 6 is vertically arranged on the bottom plate 1, and a threaded hole is formed in the straight plate 6, so that the threaded rod 14 vertically penetrates through the straight plate 6 through the threaded hole and is screwed with the straight plate 6; one end of the threaded rod 14 is rotatably connected with the holding plate 16 through a limiting rotating shaft 17, so that the vertically arranged holding plate 16 can move through the threaded rod 14 and is pressed on the side end face of the overhanging steel structure cornice. The straight plate 6 is fixed on the bottom plate 1, and the rotation of the threaded rod 14 is converted into axial linear motion through thread rotation, so that the holding plate 16 arranged at one end of the threaded rod 14 is pushed out in a translation mode and is pressed on an overhanging steel structure cornice, or the holding plate 16 is retracted in a translation mode and is separated from the overhanging steel structure cornice. The threaded rod 14 rotates relative to the clamping plate 16 through the limiting rotating shaft 17, the clamping plate 16 slides along the bottom plate 1, the rotation of the clamping plate 16 can be limited, and the clamping plate 16 can move close to or far away from the overhanging steel structure cornice in a translation mode.

A plurality of limiting springs 15 are arranged between the straight plate 6 and the holding plate 16 at intervals, and the limiting springs 15 are symmetrically distributed around the threaded rod 14 and are arranged in parallel with the threaded rod 14; the holding plate 16 is provided with an anti-skid pad (not shown in the figure), and the holding plate 16 is attached to the side end face of the overhanging steel structure cornice through the anti-skid pad. The limiting springs 15 can provide pressing force for the holding plate 16 after compression, friction between the holding plate 16 and the end face of the overhanging steel structure cornice side is improved, and the clamping effect of the holding plate 16 on the overhanging steel structure cornice is ensured. The non-slip mat can be made of materials such as rubber, and the pressing effect of the clamping plate 16 on the end face of the overhanging steel structure cornice side can be further improved.

The other end of the threaded rod 14 is provided with a handle flange (not shown in the figure), and the handle flange enables the threaded rod 14 to be held by hands more easily, so that the threaded rod 14 can be rotated conveniently.

The positioning spring rod 5 is arranged between the bottom plate 1 and the top plate 2, the top of the positioning spring rod 5 is attached to the bottom surface of the top plate 2 through a positioning disc, the positioning spring rod 5 has certain elastic deformation capacity, the distance between the bottom plate 1 and the top plate 2 is limited through the positioning spring rod 5, when the annular structure of the cantilever steel structure is locked on a cornice, the positioning spring rod 5 is compressed, and when the cantilever steel structure is used for dismounting, the locking nut 10 can jack up the top plate 2 through the elastic action of the positioning spring rod 5 after being loosened, so that the dismounting of the top plate 2 is facilitated.

Referring to fig. 1 to 3, the front end and the rear end of the top plate 2 are respectively formed with a fixing groove 11, the scale rod 12 is embedded in the fixing groove 11, the cutting length of the overhanging steel structure cornice can be determined by the scale rod 12, the cutting precision is high, the detaching operation of the overhanging steel structure cornice is convenient, and the fixing groove 11 can play a good role in protecting the scale rod 12.

The one end of scale rod 12 install damping pivot 13, make the one end of scale rod 12 can install the one end at fixed slot 11 through damping pivot 13, and scale rod 12 can rotate around damping pivot 13. The damping rotating shaft 13 can facilitate the rotation-out use and the rotation-in storage of the scale rod 12, and the scale rod 12 is not easy to lose.

The locking nut 10 and the top surface and the bottom surface of the top plate 2 are provided with a backing plate 9 therebetween, the screw rod 4 penetrates through the backing plate 9, the backing plate 9 can protect the locking nut 10 and the top plate 2, the locking effect is good, and the locking nut 10 can be conveniently detached.

Preferably, the bottom plate 1 and the top plate 2 can be made of steel plates with the size of 200 x 800 x 16mm, the screw rod 4 can be made of M20 high-strength bolts, the screw rod has high strength, long service life and strong loading capacity, and the length of the screw rod 4 and the limiting rod 3 can be determined according to the size of a overhanging steel structure cornice.

The using method of the utility model is as follows:

arrange bottom plate 1 in the below of encorbelmenting the steel construction eaves, four lock nut 10 connect soon on four screw rods 4, arrange roof 2 in the top of encorbelmenting steel construction eaves and four lock nut 10, make four screw rods 4's upper end run through four edges of roof 2 respectively, connect four lock nut 10 on four screw rods 4 again soon, adjust the distance between bottom plate 1 and the roof 2 through the screw rotation of eight lock nut 10 on four screw rods 4, make bottom plate 1 and roof 2 compress tightly on the bottom surface and the top surface of encorbelmenting the steel construction eaves. At this time, the detent spring lever 5 is compressed.

And rotating the threaded rod 14, and enabling the threaded rod 14 to do linear motion relative to the straight plate 6 through threads, so that the clamping plate 16 is pushed to be close to and abut against the side end face of the overhanging steel structure cornice. The clamping plates 16 of the two groups of auxiliary clamping assemblies are tightly pressed on the end faces of the two sides of the overhanging steel structure eave, the limiting springs 15 are compressed, the friction between the clamping plates 16 and the side wall of the overhanging steel structure eave is increased, the pressing force is improved, the connection reliability of the overhanging steel structure eave and the device is ensured, and the overhanging steel structure eave is prevented from falling off during hoisting.

The steel wire rope of handling equipment passes through lifting eye 8 and is connected fixedly with lug 7, changes scale rod 12 out fixed slot 11 through damping pivot 13, confirms the cutting position of encorbelmenting the steel construction eaves through the scale, can carry out the handling through handling equipment after the steel construction eaves that will encorbelment cuts. After the hoisting is finished, the locking nut 10 is loosened, the top plate 2 is quickly disassembled under the assistance of the elastic force of the positioning spring rod 5, the threaded rod 14 is rotated reversely to separate the clamping plate 16 from the overhanging steel structure cornice, and the overhanging steel structure cornice can be taken out of the device.

The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a lug that is used for high-rise building overlength to encorbelment steel construction cornice and demolishs operation, characterized by: comprises a bottom plate (1), a top plate (2), a limiting rod (3), a screw (4), a lifting lug (7) and a locking nut (10); the lower ends of the limiting rods (3) are respectively and vertically arranged at the corners of the bottom plate (1), and the lower ends of the screw rods (4) are respectively and correspondingly connected with the upper ends of the limiting rods (3); a plurality of through holes are formed at the corners of the top plate (2), so that a plurality of screw rods (4) can vertically penetrate through the top plate (2) through the plurality of through holes respectively, and the top and the bottom of the top plate (2) are locked on the plurality of screw rods (4) through a plurality of locking nuts (10) respectively, so that an annular structure is formed among the bottom plate (1), the top plate (2), a plurality of limiting rods (3) and the plurality of screw rods (4); the overhanging steel structure cornice penetrates through the overhanging ring-shaped structure, and the bottom plate (1) and the top plate (2) can be respectively pressed on the top surface and the bottom surface of the overhanging steel structure cornice; the lifting lug (7) is fixedly arranged at the top of the top plate (2), and a lifting hole (8) is formed in the middle of the lifting lug (7).

2. The lifting lug for the operation of dismantling the cornice of the ultra-long overhanging steel structure of the high-rise building according to the claim 1, which is characterized in that: the base plate (1) on the symmetry install a pair of auxiliary clamping subassembly, a pair of auxiliary clamping subassembly is located the both sides portion of base plate (1) respectively, make a pair of auxiliary clamping subassembly can correspond respectively and compress tightly on the both sides terminal surface of overhanging steel construction eaves.

3. The lifting lug for the operation of dismantling the cornice of the ultra-long overhanging steel structure of the high-rise building according to the claim 2, which is characterized in that: each group of auxiliary clamping components comprises a straight plate (6), a threaded rod (14), a clamping plate (16) and a limiting rotating shaft (17); the straight plate (6) is vertically arranged on the bottom plate (1), and a threaded hole is formed in the straight plate (6), so that the threaded rod (14) vertically penetrates through the straight plate (6) through the threaded hole and is screwed with the straight plate (6); one end of the threaded rod (14) is rotatably connected with the clamping plate (16) through a limiting rotating shaft (17), so that the vertically arranged clamping plate (16) can move through the threaded rod (14) and is pressed on the side end face of the overhanging steel structure cornice.

4. The lifting lug for the cornice dismantling operation of the ultra-long overhanging steel structure of the high-rise building according to claim 3, which is characterized in that: the vertical plate (6) and the clamping plate (16) are provided with a plurality of limiting springs (15) at intervals, and the limiting springs (15) are symmetrically distributed around the threaded rod (14) and are arranged in parallel with the threaded rod (14).

5. The lifting lug for the cornice dismantling operation of the ultra-long overhanging steel structure of the high-rise building according to the claim 3 or 4, which is characterized in that: and the clamping plate (16) is provided with an anti-skid pad, and the clamping plate (16) is attached to the side end face of the overhanging steel structure cornice through the anti-skid pad.

6. The lifting lug for the cornice dismantling operation of the ultra-long overhanging steel structure of the high-rise building according to claim 3, which is characterized in that: the other end of the threaded rod (14) is provided with a handle flange.

7. The lifting lug for the operation of dismantling the cornice of the ultra-long overhanging steel structure of the high-rise building according to the claim 1, which is characterized in that: the bottom plate (1) and the top plate (2) are provided with positioning spring rods (5) therebetween, and the tops of the positioning spring rods (5) are attached to the bottom surface of the top plate (2) through positioning discs.

8. The lifting lug for the cornice dismantling operation of the ultra-long overhanging steel structure of the high-rise building according to the claim 1 or 7, which is characterized in that: the front end and the rear end of the top plate (2) are respectively provided with a fixing groove (11), and the scale rod (12) is embedded in the fixing groove (11).

9. The lifting lug for the cornice dismantling operation of the ultra-long overhanging steel structure of the high-rise building according to claim 8, which is characterized in that: the damping rotary shaft (13) is installed to the one end of scale rod (12), make the one end of scale rod (12) can install the one end in fixed slot (11) through damping rotary shaft (13), and scale rod (12) can rotate around damping rotary shaft (13).

10. The lifting lug for the operation of dismantling the cornice of the ultra-long overhanging steel structure of the high-rise building according to the claim 1, which is characterized in that: a backing plate (9) is arranged between the locking nut (10) and the top surface and the bottom surface of the top plate (2), and the screw rod (4) penetrates through the backing plate (9).