A steel cantilever bracket used in high-rise buildings

Abstract

A steel structure cantilever bracket used in high-rise buildings includes an upper support beam, the upper support beam includes a horizontal angle iron, a plurality of longitudinal cantilever I-beams are fixed to the outer side wall of the angle iron, a plurality of vertical steel support columns are abutted on the inner bottom surface of the angle iron, and an inclined support frame is provided on the angle iron between adjacent steel support columns. The inclined support frame includes an inclined first square tube, the upper end of the main square tube is inserted between two vertical support plates, the support plates are welded and fixed to the angle iron, the upper end of the first square tube is hinged to the support plate by a bolt assembly, and the middle and lower parts of the first square tube are hinged to an inclined second square tube by a bolt assembly. The cantilever bracket of this design is used to support the main body of the I-beam, but the I-beam is set between the floors of the high-rise building through the support frame and the steel support columns. It is easy to install, has a low safety risk, and is also easy to disassemble, recycle and reuse.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure brackets, and more particularly to a steel structure cantilever bracket used in high-rise buildings. Background Art

[0002] At present, during the construction of high-rise buildings, it is necessary to build steel pipe scaffolding. During the construction of the top of some high-rise buildings, part of the steel pipe scaffolding is supported by cantilever brackets set on the outside of the building. The current cantilever brackets are generally I-beams fixed on the outer wall of the building. The main fixing method is to weld steel plates on the I-beams, and the steel plates are fixed to the outer wall of the building through expansion bolts. Therefore, it is necessary to drill holes in the outer wall of the building. Drilling holes on the outer wall of a high-rise building and installing I-beams are both risky, and the subsequent disassembly and recycling of the I-beams are also more troublesome. Summary of the Invention

[0003] The purpose of the present invention is to address the shortcomings of the existing technology and provide a steel-structured cantilever bracket for use on high-rise buildings. The cantilever bracket is used to support an I-beam as the main body, but the I-beam is arranged between the floors of the high-rise building through a support frame and steel support columns. It is easy to install, has low safety risks, and is also easy to disassemble, recycle and reuse.

[0004] The top end of the lifting link is connected with the support plate of the lifting link, and the bottom end of the lifting link is connected with the support plate of the lifting link, and the lifting link is connected with the support plate of the lifting link.

[0005] Preferably, the angle iron is composed of a vertical plate on the front side and a horizontal plate on the upper part of the vertical plate, the steel support column rests on the horizontal plate of the angle iron, and the cantilever I-beam is linearly and evenly distributed on the vertical plate of the angle iron; the cantilever I-beam and the angle iron are fixed in a manner that two groups of channel steels with notches facing back to back and in a longitudinal direction are welded and fixed on the vertical plate of the angle iron, the cantilever I-beam is inserted between the two groups of channel steels, a number of bolt assemblies are inserted on the cantilever I-beam and the channel steel, the cantilever I-beam and the channel steel are fixed to each other by the bolt assembly, and the bolt assembly consists of bolts and nuts.

[0006] Preferably, the upper end surface of the support plate is welded to the horizontal plate of the angle iron, and the front end surface of the support plate is fixedly welded to the vertical plate of the angle iron; the distance from the inclined support frame to the two side steel support columns is equal.

[0007] Preferably, a plurality of "C"-shaped positioning frames are fixedly welded on the angle iron, the upper end of the steel support column is inserted into the positioning frame, the steel support column includes a vertical lower steel pipe, a bottom plate is fixed at the lower end of the lower steel pipe, a vertical upper steel pipe is inserted into the upper end of the lower steel pipe, a top plate is fixed at the upper end of the upper steel pipe, the top plate abuts against the angle iron, a plurality of positioning holes are formed on the upper steel pipe, a cross shaft is inserted into the positioning holes, vertical guide grooves are formed on the outer walls of the two opposite sides of the upper end of the lower steel pipe, a top material sleeve is screwed on the lower steel pipe at the guide groove, and both ends of the cross shaft pass through the guide grooves of the lower steel pipe and abut against the upper end surface of the top material sleeve.

[0008] Preferably, handles are fixedly welded on the outer walls of the two opposite sides of the top material sleeve, and a limiting sleeve seat with an L-shaped cross section is inserted into the upper end of the top material sleeve, and the cross shaft is inserted into the limiting sleeve seat.

[0009] Preferably, the first mounting hole on the first roller sleeve and the second mounting hole on the second roller sleeve are respectively located outside the rear pin shaft and the front pin shaft, first rollers and second rollers are respectively formed on the outer walls of one end of the first roller sleeve and one end of the second roller sleeve, and the lower ends of the outer walls of the first roller and the second roller are respectively located below the lower ends of the first square pipe and the second square pipe.

[0010] Preferably, the inclination directions of the first square pipe and the second square pipe are opposite, the upper end of the first square pipe is located in front of the lower end of the second square pipe, and the lower end of the second square pipe is located behind the angle iron.

[0011] Preferably, the second square pipe abuts against the outer wall side wall of the first square pipe, the side length of the cross section of the second square pipe is equal to the side length of the cross section of the first square pipe, and the length of the second square pipe is less than the length from the upper end of the second square pipe to the upper end of the first square pipe.

[0012] The beneficial effects of the present invention are as follows:

[0013] The cantilever support of this design is used to support the main body as an I-beam, but the I-beam is arranged between the floors of a high-rise building through a support frame and steel support columns, which is convenient for installation, has a small safety risk, and is also convenient for disassembly, recycling and reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic three-dimensional structure diagram of the present invention; [[ID=(31]]

[0015] Figure 2 is a schematic front view structural diagram of the present invention;

[0016] Figure 3 A schematic diagram of the structure of the present invention from a side view;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure from another angle of the present invention.

[0018] In the figure: 1. Upper support beam; 11. Angle iron; 12. Positioning frame; 13. Support plate; 2. Cantilever I-beam; 3. Steel support column; 31. Lower steel pipe; 311. Guide groove; 32. Bottom plate; 33. Upper steel pipe; 331. Positioning hole; 34. Horizontal axis; 35. Ejecting sleeve; 36. Handle; 37. Limiting sleeve; 4. Oblique support frame; 41. First square tube; 42. Second square tube; 43. Rear pin shaft; 44. Front pin shaft; 45. First roller sleeve; 451. First mounting hole; 452. First roller; 46. Second roller sleeve; 461. Second mounting hole; 462. Second roller; 5. Channel steel; 6. Bolt assembly. DETAILED DESCRIPTION

[0019] Example: See Figures 1 to 4 As shown, a steel structure cantilever bracket used in high-rise buildings includes an upper support beam 1, which includes a horizontal angle iron 11. A plurality of longitudinal cantilever I-beams 2 are fixed to the outer wall of the angle iron 11. A plurality of vertical steel support columns 3 are abutted on the inner bottom surface of the angle iron 11. An inclined support frame 4 is provided on the angle iron 11 between adjacent steel support columns 3. The inclined support frame 4 includes an inclined first square tube 41. The upper end of the first square tube 41 is inserted between two vertical support plates 13. The support plates 13 are welded and fixed to the angle iron 11. The upper end of the first square tube 41 is fixed by a bolt assembly 6 and the support plate 13 are hinged together, and the middle and lower parts of the first square tube 41 are hingedly connected to the inclined second square tube 42 through the bolt assembly 6. The lower ends of the second square tube 42 and the lower ends of the first square tube 41 are respectively plugged with a horizontal front pin 44 and a rear pin 43. The two ends of the rear pin 43 extend out of the outer wall of the first square tube 41 and are fixed with a first roller sleeve 45. One end of the front pin 44 extends out of the outer wall of the second square tube 42 and is fixed with a second roller sleeve 46. The first roller sleeve 45 and the second roller sleeve 46 are respectively provided with a first mounting hole 451 and a second mounting hole 461 on the outer walls on both sides opposite to each other.

[0020] The angle iron 11 is composed of a vertical plate on the front side and a horizontal plate on the upper part of the vertical plate. The steel support column 3 rests on the horizontal plate of the angle iron 11, and the cantilever I-beam 2 is linearly and evenly distributed on the vertical plate of the angle iron 11; the cantilever I-beam 2 and the angle iron 11 are fixed in such a way that two groups of channel steels 5 with notches facing back to back and in a longitudinal direction are welded and fixed on the vertical plate of the angle iron 11, the cantilever I-beam 2 is inserted between the two groups of channel steels 5, and a number of bolt assemblies 6 are inserted on the cantilever I-beam 2 and the channel steel 5. The cantilever I-beam 2 and the channel steel 5 are fixed to each other by the bolt assembly 6, and the bolt assembly 6 is composed of bolts and nuts. The cantilever I-beam 2 and the channel steel 5 are conveniently disassembled and assembled between the channel steel 5 and the cantilever I-beam 2 through the bolt assembly 6, and are convenient for transportation after disassembly.

[0021] The upper end surface of the support plate 13 is welded to the horizontal plate of the angle iron 11, and the front end surface of the support plate 13 is welded and fixed to the vertical plate of the angle iron 11; the distance between the inclined support frame 4 and the steel support columns 3 on both sides is equal,

[0022] The cam 33 is fixed on the top of the cam 33 and is fixed on the cam 33. The cam 33 is fixed on the top of the cam 33 and is fixed on the cam 33.

[0023] Handles 36 are welded and fixed on the outer walls on both sides of the opposite sides of the ejecting sleeve 35. A limit sleeve 37 with an L-shaped cross-section is inserted into the upper end of the ejecting sleeve 35. The horizontal axis 34 is inserted in the limit sleeve 37. The limit sleeve 37 can constrain the horizontal axis 34 and limit the axial movement of the horizontal axis 34 when the ejecting sleeve 35 is rotated.

[0024] The first mounting hole 451 on the first roller sleeve 45 and the second mounting hole 461 on the second roller sleeve 46 are respectively located on the outside of the rear pin shaft 43 and the front pin shaft 44, and the outer wall of one end of the first roller sleeve 45 and the outer wall of one end of the second roller sleeve 46 are respectively formed with a first roller 452 and a second roller 462. The lower ends of the outer walls of the first roller 452 and the second roller 462 are respectively located below the lower ends of the first square tube 41 and the second square tube 42. The first roller 452 and the second roller 462 are arranged on the first roller sleeve 45 and the second roller sleeve 46 to facilitate the movement of the steel structure consisting of the upper support beam 1, the cantilevered I-beam 2 and the oblique support frame 4, facilitate the upper support beam 1 to be placed against the ceiling of a high building floor, and facilitate the subsequent installation of the steel support column 3.

[0025] The inclination direction of the first square tube 41 is opposite to that of the second square tube 42 . The upper end of the first square tube 41 is located in front of the lower end of the second square tube 42 , and the lower end of the second square tube 42 is located behind the angle iron 11 .

[0026] The second square tube 42 is against the outer side wall of the first square tube 41. The side length of the cross section of the second square tube 42 is equal to the side length of the cross section of the first square tube 41. The length of the second square tube 42 is less than the length from the upper end of the second square tube 42 to the upper end of the first square tube 41. After the steel structure cantilever bracket is disassembled, the second square tube 42 and the first square tube 41 can be folded and overlapped for easy transportation.

[0027] Working Principle: The present invention is a steel structure cantilever bracket used in high-rise buildings. The steel structure cantilever bracket used to support the steel pipe foot water frame is also a cantilever I-beam 2. However, this cantilever I-beam 2 is fixed to the upper support beam 1 composed of angle irons 11. The upper support beam 1 can be supported against the ceiling of the floor through the assembled inclined support frame 4. The cantilever I-beam 2 extends out of the floor, and then a steel support column 3 is set up. The lower end of the steel support column 3 is supported against the floor floor. The upper end is supported against the upper support beam 1, and the steel support column 3 is used to fix the upper support beam 1 to the ceiling of the floor; thus, the cantilever I-beam 2 is set up.

[0028] In order to improve the connection strength, the first roller sleeve 45 and the second roller sleeve 46 are set on the inclined support frame 4. The first roller sleeve 45 and the second roller sleeve 46 are fixed to the floor of the floor through expansion bolts. The inclined support frame 4 can enhance the installation strength of the upper support beam 1 in the floor, and indirectly improve the supporting strength of the cantilevered I-beam 2.

[0029] The embodiments are intended to illustrate the present invention and are not intended to limit the present invention. Any person skilled in the art may modify the embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be as set forth in the claims of the present invention.

Claims

1. A steel structure cantilever bracket used in a high-rise building, comprising an upper support beam (1), the upper support beam (1) including a transverse angle iron (11), characterized in that: A plurality of longitudinal cantilevered I-beams (2) are fixed on the outer side wall of the angle iron (11), a plurality of vertical steel support columns (3) are abutted on the inner bottom surface of the angle iron (11), an inclined support frame (4) is provided on the angle iron (11) between adjacent steel support columns (3), and the inclined support frame (4) includes an inclined first square tube (41), the upper end of the first square tube (41) is inserted between two vertical support plates (13), the support plates (13) are welded and fixed to the angle iron (11), the upper end of the first square tube (41) is hinged to the support plate (13) through a bolt assembly (6), and the first square tube (41) is hinged to the support plate (13). The middle and lower parts are hinged with an inclined second square tube (42) through a bolt assembly (6); the lower end of the second square tube (42) and the lower end of the first square tube (41) are respectively plugged with a transverse front pin (44) and a rear pin (43); both ends of the rear pin (43) extend out of the outer wall of the first square tube (41) and are fixed with a first roller sleeve (45); one end of the front pin (44) extends out of the outer wall of the second square tube (42) and is fixed with a second roller sleeve (46); the first roller sleeve (45) and the second roller sleeve (46) are respectively provided with a first mounting hole (451) and a second mounting hole (461) on the outer walls on opposite sides thereof.

2. The steel cantilever bracket used in a high-rise building according to claim 1, characterized in that: The angle iron (11) is composed of a vertical plate on the front side and a horizontal plate on the upper part of the vertical plate, the steel support column (3) is against the horizontal plate of the angle iron (11), and the cantilevered I-beam (2) is linearly and evenly distributed on the vertical plate of the angle iron (11); the cantilevered I-beam (2) and the angle iron (11) are fixed in the following manner: two groups of channel steels (5) with notches facing back to back and in a longitudinal direction are welded and fixed on the vertical plate of the angle iron (11), the cantilevered I-beam (2) is inserted between the two groups of channel steels (5), a plurality of bolt assemblies (6) are inserted on the cantilevered I-beam (2) and the channel steel (5), and the cantilevered I-beam (2) and the channel steel (5) are fixedly connected by the bolt assemblies (6), and the bolt assemblies (6) are composed of bolts and nuts.

3. The steel cantilever bracket used in a high-rise building according to claim 2, characterized in that: The upper end surface of the support plate (13) is welded to the horizontal plate of the angle iron (11), and the front end surface of the support plate (13) is welded and fixed to the vertical plate of the angle iron (11); the distances between the inclined support frame (4) and the steel support columns (3) on both sides are equal.

4. The steel cantilever bracket used in a high-rise building according to claim 1, characterized in that: A number of "U"-shaped positioning frames (12) are welded and fixed on the angle iron (11). The upper end of the steel support column (3) is inserted into the positioning frame (12). The steel support column (3) includes a vertical lower steel pipe (31). A bottom plate (32) is fixed at the lower end of the lower steel pipe (31). A vertical upper steel pipe (33) is inserted into the upper end of the lower steel pipe (31). A top plate is fixed at the upper end of the upper steel pipe (33), and the top plate abuts against the angle iron (11). A number of positioning holes (331) are formed on the upper steel pipe (33). A cross shaft (34) is inserted into the positioning hole (331). Vertical guide grooves (311) are formed on the outer walls of the two opposite sides of the upper end of the lower steel pipe (31). A material pushing sleeve (35) is screwed on the lower steel pipe (31) at the position of the guide groove (311). The two ends of the cross shaft (34) pass through the guide grooves (311) of the lower steel pipe (31) and abut against the upper end surfaces of the material pushing sleeve (35).

5. The steel cantilever bracket used in a high-rise building according to claim 4, characterized in that: Handles (36) are welded and fixed on the outer walls of the two opposite sides of the material pushing sleeve (35). A limiting sleeve seat (37) with an L-shaped cross section is inserted into the upper end of the material pushing sleeve (35). The cross shaft (34) is inserted into the limiting sleeve seat (37).

6. The steel cantilever bracket used in a high-rise building according to claim 1, characterized in that: The first mounting holes (451) on the first roller sleeve (45) and the second mounting holes (461) on the second roller sleeve (46) are respectively located outside the rear pin shaft (43) and the front pin shaft (44). First rollers (452) and second rollers (462) are respectively formed on the outer walls of one end of the first roller sleeve (45) and one end of the second roller sleeve (46). The lower ends of the outer walls of the first roller (452) and the second roller (462) are respectively located below the lower ends of the first square pipe (41) and the second square pipe (42).

7. The steel cantilever bracket used in a high-rise building according to claim 1, characterized in that: The inclination directions of the first square pipe (41) and the second square pipe (42) are opposite. The upper end of the first square pipe (41) is located at the front side of the lower end of the second square pipe (42). The lower end of the second square pipe (42) is located at the rear side of the angle iron (11).

8. The steel cantilever bracket used in a high-rise building according to claim 1, characterized in that: The second square pipe (42) abuts against the outer wall side of the first square pipe (41). The side length of the cross section of the second square pipe (42) is equal to the side length of the cross section of the first square pipe (41). The length of the second square pipe (42) is less than the length from the upper end of the second square pipe (42) to the upper end of the first square pipe (41).

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