Auxiliary support for hoisting steel box girder

Abstract

The utility model discloses a steel box girder hoisting auxiliary support, and relates to the technical field of steel box girder construction. A steel box girder hoisting auxiliary support comprises a column body, a supporting column is arranged in the column body in a sliding mode, a first hydraulic telescopic rod is fixed in the column body, the upper end of the first hydraulic telescopic rod is fixedly connected with the supporting column, a telescopic column is fixed to the upper end of the supporting column, a hoisting plate is fixed to the telescopic end of the telescopic column, and two symmetrical hoisting columns are arranged at the lower end of the hoisting plate. An adjusting column is fixed to the lower end of the hoisting column, limiting frames are arranged at the two ends of the adjusting column, fixing sleeves are fixed to the lower ends of the limiting frames, a moving mechanism is arranged between the hoisting plate and the telescopic column, and an adjusting mechanism is arranged between the adjusting column and the limiting frames. When the steel box girders are used, the distance between the two adjusting columns is adjusted through the moving mechanism, the steel box girders with different lengths can be conveniently adapted, stable transportation of the steel box girders is facilitated, the steel box girders are fixed through the adjusting mechanism so as to adapt to the steel box girders with different heights and widths, and fixing and hoisting by workers are facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of steel box girder construction, and in particular to an auxiliary support for hoisting a steel box girder. Background Art

[0002] Steel box girder is a commonly used structural form for large-span bridges. It is mainly made of welded steel plates. It is called a steel box girder because its shape resembles a box. The steel box girder has good overall stress resistance and light weight, and can be made into a large span. Steel box girders are generally used on bridges with larger spans.

[0003] A steel box girder lifting device mentioned in an existing Chinese public patent (authorization announcement number: CN220078321U) relates to the field of steel box girder construction technology, including: a vertical lifting device, a lifting plate, a first lifting column and a second lifting column, the output end of the vertical lifting device can move in the vertical direction and maintain the position after the movement; the lifting plate is horizontally arranged and fixedly connected to the output end of the height lifting device; the top of the first lifting column is slidably connected to the lifting plate and can maintain the position after sliding, and the other end is used to be detachably fixedly connected to the first end of the steel box girder; the top of the second lifting column is slidably connected to the lifting plate and can maintain the position after sliding, and the other end is used to be detachably fixedly connected to the second end of the steel box girder, which can lift steel box girders of different spans and effectively improve work efficiency.

[0004] When the steel box girder is in use, it is used for the construction of bridges. During the construction of the bridge, workers are required to transport the steel box girder to a suitable position by means of a crane. When lifting the steel box girder, a lifting mechanism is required. However, the lifting mechanism in the above device has a relatively fixed size when fixing the steel box girder, which is not convenient for fixing steel box girders of different heights and widths, and thus easily affects the lifting of the steel box girder. Utility Model Content

[0005] The purpose of the present application is to solve the problem that the dimensions of the steel box girder are relatively fixed when the lifting mechanism is used to fix it, which makes it inconvenient to fix steel box girders of different heights and widths, and thus easily affects the lifting of the steel box girder. The present application provides a steel box girder lifting auxiliary bracket.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] The auxiliary bracket for lifting a steel box girder comprises a column body, a support column is slidably arranged inside the column body, a hydraulic telescopic rod is fixed inside the column body, the upper end of the hydraulic telescopic rod is fixedly connected to the support column, a telescopic column is fixed to the upper end of the support column, a lifting plate is fixed to the telescopic end of the telescopic column, two symmetrical lifting columns are arranged at the lower end of the lifting plate, an adjusting column is fixed to the lower end of the lifting column, limiting frames are arranged at both ends of the adjusting column, a fixing sleeve is fixed to the lower end of the frame, a moving mechanism is arranged between the lifting plate and the telescopic column, and an adjusting mechanism is arranged between the adjusting column and the limiting frame.

[0008] By adopting the above technical solution, when the steel box girder is in use, the distance between the two adjustment columns is first adjusted through the moving mechanism to facilitate adaptation to steel box girders of different lengths and stable transportation of the steel box girder. The steel box girder is fixed through the adjusting mechanism to adapt to steel box girders of different heights and widths, which is convenient for the staff to fix and hoist.

[0009] Furthermore, the adjustment mechanism includes a motor fixed on the side of the adjustment column, the output end of the motor extends into the adjustment column and is fixedly connected to a gear 1, a fixed rack 1 is meshed on the gear 1, and a fixed rack 2 is meshed at a lower end of the gear, and a limiting component is arranged between the motor and the adjustment column.

[0010] By adopting the above technical solution, the motor drives gear one to rotate, and the rotation of gear one causes fixed rack one and fixed rack two to move to adapt to steel box girders of different heights and widths.

[0011] Furthermore, the limiting assembly includes a limiting block fixed on fixed rack one and fixed rack two, the limiting block is T-shaped, a limiting groove is opened on the side of the adjustment column, the limiting block is located in the limiting groove, and an adjustment piece is provided at the lower end of the fixed sleeve.

[0012] By adopting the above technical solution, the limiting block moves in the limiting groove to limit the fixed rack 1 and the fixed rack 2.

[0013] Furthermore, the adjusting member comprises an adjusting frame slidably arranged at the lower end of the fixing sleeve, the adjusting frame and the fixing sleeve are fixed by bolts, a steel box beam is placed on the adjusting frame, and the fixing sleeve is in contact with the steel box beam.

[0014] By adopting the above technical solution, the bolts on the fixing sleeve are unscrewed to release the restriction on the adjusting frame, and then the adjusting frame is pulled to slide in the fixing sleeve to adapt to steel box girders of different heights.

[0015] Furthermore, the limiting frame and the adjusting frame are both L-shaped, and the surfaces of the fixing sleeve and the adjusting frame are rough metal surfaces.

[0016] By adopting the above technical solution, the fixing sleeve and the adjusting frame increase the friction with the steel box girder, which is convenient for fixing and lifting.

[0017] Furthermore, the moving mechanism includes two symmetrically arranged moving plates slidably arranged on the hanging plate, an electric telescopic rod is fixed to the end of the hanging plate, the telescopic end of the electric telescopic rod is fixedly connected to the side of one of the moving plates, a fixing groove is provided on the hanging plate, the upper end of the hanging column extends into the fixing groove and is fixedly connected to the moving plate, a sliding groove is provided on the moving plate, a slider is fixed to the side of one end of the moving plate, the slider is located in the sliding groove, a moving column is fixed to the end of the moving plate away from the slider, two adjusting grooves are provided on the hanging plate, the moving column is located in the adjusting groove, and a moving component is provided between the moving column and the hanging column.

[0018] By adopting the above technical solution, the electric telescopic rod drives the moving plate to move, so that the moving column moves in the adjusting groove, and the moving column drives the adjusting rack 1 to move, so that the gear 2 rotates, drives the adjusting rack 2 to move, so that the moving plate moves, and the moving plate drives the lifting column to move in the fixed groove, restricts the moving plate, and makes the adjusting column move, so as to adapt to steel box girders of different lengths.

[0019] Furthermore, the moving component includes gear 2 rotatably connected to the lower end of the lifting plate, the lower end of the lifting plate is slidably connected with adjustment rack 1 and adjustment rack 2, the gear 2 is meshed with adjustment rack 1 and adjustment rack 2, and the lower end of the moving column extends out of the adjustment slot and is fixedly connected with adjustment rack 1 and adjustment rack 2.

[0020] By adopting the above technical solution, the movable plate drives the lifting column to move in the fixed groove, restricts the movable plate, causes the adjustment column to move, drives the restriction frame and the fixed sleeve to move to the appropriate position, and at the same time, the slider moves in the slide groove to restrict the movable plate.

[0021] Furthermore, a second hydraulic telescopic rod is fixed to the upper end of the telescopic column, and the telescopic end of the second hydraulic telescopic rod is fixedly connected to the telescopic end of the telescopic column.

[0022] By adopting the above technical solution, the hydraulic telescopic rod 2 drives the telescopic column to extend and retract, thereby facilitating the left and right movement of the steel box girder.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. When the steel box girder is in use, start the motor again, and the motor drives gear 1 to rotate. The rotation of gear 1 moves fixed rack 1 and fixed rack 2, so that the limiting frame moves in the adjusting column, driving the fixed sleeve and the adjusting frame to move, and fixing the steel box girder that needs to be hoisted. The L-shaped limiting frame and the adjusting frame are convenient for fixing the steel box girder and fixing and hoisting, so as to adapt to steel box girders of different heights and widths, and facilitate the fixing and hoisting of the staff.

[0025] 2. When the steel box girder is in use, start the electric telescopic rod to drive the moving plate to move, so that the moving column moves in the adjusting groove, and the moving column drives the adjusting rack 1 to move, so that the gear 2 rotates, drives the adjusting rack 2 to move, so that the moving plate moves, and the moving plate drives the lifting column to move in the fixed groove to limit the moving plate, so that the adjusting column moves, drives the limiting frame and the fixed sleeve to move to the appropriate position, and at the same time, the slider moves in the slide groove to limit the moving plate, and the moving mechanism adjusts the distance between the two adjusting columns to adapt to steel box girders of different lengths and facilitate stable transportation and lifting of steel box girders. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is the first structural schematic diagram of the steel box girder in this application.

[0027] Figure 2 It is a schematic diagram of the internal structure of the steel box girder in this application.

[0028] Figure 3 This application Figure 2 Enlarged structural diagram at A in the middle.

[0029] Figure 4 It is the second structural schematic diagram of the steel box girder in this application.

[0030] Description of reference numerals:

[0031] 1. Column; 2. Support column; 3. Telescopic column; 4. Hydraulic telescopic rod 1; 5. Hydraulic telescopic rod 2; 6. Steel box girder; 7. Lifting plate; 8. Lifting column; 9. Adjusting column; 10. Limiting frame; 11. Fixed sleeve; 12. Motor; 13. Gear 1; 14. Fixed rack 1; 15. Fixed rack 2; 16. Limiting groove; 17. Limiting block; 18. Adjusting frame; 19. Electric telescopic rod; 20. Moving plate; 21. Gear 2; 22. Adjusting rack 1; 23. Adjusting rack 2; 24. Moving column; 25. Slider; 26. Slide groove. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses an auxiliary bracket for hoisting a steel box girder.

[0034] Reference Figure 1The auxiliary bracket for lifting the steel box girder includes a column 1, a support column 2 is slidably arranged in the column 1, a hydraulic telescopic rod 4 is fixed in the column 1, the upper end of the hydraulic telescopic rod 4 is fixedly connected to the support column 2, a telescopic column 3 is fixed to the upper end of the support column 2, a lifting plate 7 is fixed to the telescopic end of the telescopic column 3, two symmetrical lifting columns 8 are arranged at the lower end of the lifting plate 7, an adjusting column 9 is fixed to the lower end of the lifting column 8, limiting frames 10 are arranged at both ends of the adjusting column 9, a fixing sleeve 11 is fixed to the lower end of the frame, a moving mechanism is arranged between the lifting plate 7 and the telescopic column 3, and an adjusting mechanism is arranged between the adjusting column 9 and the limiting frame 10.

[0035] When the steel box girder 6 is in use, the distance between the two adjusting columns 9 is first adjusted by the moving mechanism to adapt to steel box girders 6 of different lengths and to facilitate stable transportation of the steel box girder 6. The steel box girder 6 is fixed by the adjusting mechanism to adapt to steel box girders 6 of different heights and widths, which is convenient for the staff to fix and hoist. After fixing, the hydraulic telescopic rod 4 is started to make the support column 2 slide in the column body 1 to adjust the height of the steel box girder 6 for hoisting.

[0036] Reference Figure 1-Figure 3 The adjustment mechanism includes a motor 12 fixed on the side of the adjustment column 9. The output end of the motor 12 extends into the adjustment column 9 and is fixedly connected to a gear 13. A fixed rack 14 is meshed on the gear 13. A fixed rack 2 15 is meshed at the lower end of the gear 13. A limiting component is arranged between the motor 12 and the adjustment column 9. The limiting component includes a limiting block 17 fixed on the fixed rack 14 and the fixed rack 2 15. The limiting block 17 is T-shaped. A limiting groove 16 is provided on the side of the adjustment column 9. The limiting block 17 is located in the limiting groove 16. An adjusting member is arranged at the lower end of the fixed sleeve 11. The adjusting member includes an adjusting frame 18 slidably arranged at the lower end of the fixed sleeve 11. The adjusting frame 18 is fixed to the fixed sleeve 11 by bolts. A steel box girder 6 is placed on the adjusting frame 18, and the fixed sleeve 11 is in contact with the steel box girder 6. Both the limiting frame 10 and the adjusting frame 18 are L-shaped, and the surfaces of the fixed sleeve 11 and the adjusting frame 18 are rough metal surfaces.

[0037] When the steel box girder 6 is in use, first unscrew the bolts on the fixing sleeve 11 according to the height of the steel box girder 6 to release the restriction on the adjusting frame 18, then pull the adjusting frame 18 to slide in the fixing sleeve 11, adjust it to a suitable position and stop, and then start the motor 12, the motor 12 drives the gear 13 to rotate, the gear 13 rotates to make the fixed rack 14 and the fixed rack 2 15 move, so that the limiting frame 10 moves in the adjusting column 9, driving the fixing sleeve 11 and the adjusting frame 18 to move, and fixing the steel box girder 6 that needs to be hoisted. During movement, the limiting block 17 moves in the limiting groove 16 to restrict the fixed rack 14 and the fixed rack 2 15. The L-shaped limiting frame 10 and the adjusting frame 18 are convenient for fixing the steel box girder 6, and the fixing sleeve 11 and the adjusting frame 18 increase the friction with the steel box girder 6, which is convenient for fixed hoisting. The steel box girder 6 is fixed by the adjusting mechanism to adapt to steel box girders 6 of different heights and widths, which is convenient for the staff to fix and hoist.

[0038] Reference Figure 1 and Figure 4 The moving mechanism includes two symmetrically arranged moving plates 20 slidably arranged on the hanging plate 7, an electric telescopic rod 19 is fixed to the end of the hanging plate 7, the telescopic end of the electric telescopic rod 19 is fixedly connected to the side of one of the moving plates 20, a fixing groove is provided on the hanging plate 7, the upper end of the hanging column 8 extends into the fixing groove and is fixedly connected to the moving plate 20, a sliding groove 26 is provided on the moving plate 20, a slider 25 is fixed to the side of one end of the moving plate 20, the slider 25 is located in the sliding groove 26, a moving column 24 is fixed to the end of the moving plate 20 away from the slider 25, two adjusting grooves are provided on the hanging plate 7, the moving column 24 is located in the adjusting groove, and a moving component is provided between the moving column 24 and the hanging column 8. The moving assembly includes a gear 21 rotatably connected to the lower end of the hanging plate 7, and the lower end of the hanging plate 7 is slidably connected with an adjusting rack 1 22 and an adjusting rack 2 23, and the gear 21 is meshed with the adjusting rack 1 22 and the adjusting rack 2 23, and the lower end of the moving column 24 extends out of the adjustment slot and is fixedly connected with the adjusting rack 1 22 and the adjusting rack 2 23. A hydraulic telescopic rod 2 5 is fixed to the upper end of the telescopic column 3, and the telescopic end of the hydraulic telescopic rod 2 5 is fixedly connected to the telescopic end of the telescopic column 3.

[0039] When the steel box girder 6 is in use, the electric telescopic rod 19 is started to drive the moving plate 20 to move, so that the moving column 24 moves in the adjusting groove, and the moving column 24 drives the adjusting rack 1 22 to move, so that the gear 21 rotates, and drives the adjusting rack 23 to move, so that the moving plate 20 moves, and the moving plate 20 drives the lifting column 8 to move in the fixed groove, restricts the moving plate 20, so that the adjusting column 9 moves, drives the limiting frame 10 and the fixing sleeve 11 to move to the appropriate position, and at the same time, the slider 25 moves in the slide groove 26 to restrict the moving plate 20, and the moving mechanism adjusts the distance between the two adjusting columns 9, so as to adapt to steel box girders 6 of different lengths and facilitate the stable transportation and lifting of the steel box girder 6, and then starts the hydraulic telescopic rod 2 5 to drive the telescopic column 3 to extend and retract, so as to facilitate the left and right movement of the steel box girder 6 and the accurate placement of the steel box girder 6.

[0040] The implementation principle of the auxiliary bracket for hoisting the steel box beam 6 in this embodiment is as follows: first, according to the height of the steel box beam 6, unscrew the bolts on the fixing sleeve 11 to release the restriction on the adjustment frame 18, and then pull the adjustment frame 18 to slide in the fixing sleeve 11 and adjust it to a suitable position and stop;

[0041] Start the electric telescopic rod 19, drive the moving plate 20 to move, so that the moving column 24 moves in the adjustment groove, the moving column 24 drives the adjustment rack 1 22 to move, so that the gear 2 21 rotates, drives the adjustment rack 2 23 to move, so that the moving plate 20 moves, the moving plate 20 drives the hanging column 8 to move in the fixed groove, restricts the moving plate 20, so that the adjustment column 9 moves, drives the restriction frame 10 and the fixed sleeve 11 to move to the appropriate position, while moving, the slider 25 moves in the slide groove 26 to restrict the moving plate 20, and the moving mechanism adjusts the distance between the two adjustment columns 9 to adapt to steel box beams 6 of different lengths;

[0042] Start the motor 12 again, the motor 12 drives the gear 13 to rotate, the rotation of the gear 13 makes the fixed rack 14 and the fixed rack 2 15 move, so that the limiting frame 10 moves in the adjusting column 9, driving the fixed sleeve 11 and the adjusting frame 18 to move, and fixing the steel box girder 6 that needs to be hoisted. The L-shaped limiting frame 10 and the adjusting frame 18 are convenient for fixing the steel box girder 6, the limiting block 17 moves in the limiting groove 16, and limits the fixed rack 14 and the fixed rack 2 15. The fixed sleeve 11 and the adjusting frame 18 increase the friction with the steel box girder 6, which is convenient for fixed hoisting. The steel box girder 6 is fixed by the adjusting mechanism to adapt to the steel box girder 6 of different heights and widths, and then start the hydraulic telescopic rod 14, so that the support column 2 slides in the column body 1 to adjust the height of the steel box girder 6, and then start the hydraulic telescopic rod 2 5 to drive the telescopic column 3 to telescope, which is convenient for the left and right movement of the steel box girder 6 and the accurate placement of the steel box girder 6.

Claims

1. A steel box girder (6) hoisting auxiliary support, comprising a column (1), characterized in that: A support column (2) is slidably arranged in the column body (1), a hydraulic telescopic rod (4) is fixed in the column body (1), the upper end of the hydraulic telescopic rod (4) is fixedly connected to the support column (2), a telescopic column (3) is fixed to the upper end of the support column (2), a hanging plate (7) is fixed to the telescopic end of the telescopic column (3), two symmetrical hanging columns (8) are arranged at the lower end of the hanging plate (7), an adjusting column (9) is fixed to the lower end of the hanging column (8), both ends of the adjusting column (9) are provided with limiting frames (10), a fixing sleeve (11) is fixed to the lower end of the frame, a moving mechanism is arranged between the hanging plate (7) and the telescopic column (3), and an adjusting mechanism is arranged between the adjusting column (9) and the limiting frame (10).

2. The auxiliary support for hoisting the steel box girder (6) according to claim 1, characterized in that: The adjustment mechanism comprises a motor (12) fixed to a side of an adjustment column (9); an output end of the motor (12) extends into the adjustment column (9) and is fixedly connected to a gear 1 (13); a fixed rack 1 (14) is meshed on the gear 1 (13); a fixed rack 2 (15) is meshed on the lower end of the gear 1 (13); and a limiting component is provided between the motor (12) and the adjustment column (9).

3. The auxiliary support for hoisting the steel box girder (6) according to claim 2, characterized in that: The limiting assembly comprises a limiting block (17) fixed on the fixed rack 1 (14) and the fixed rack 2 (15), the limiting block (17) is T-shaped, a limiting groove (16) is provided on the side of the adjusting column (9), the limiting block (17) is located in the limiting groove (16), and an adjusting member is provided at the lower end of the fixing sleeve (11).

4. The auxiliary support for hoisting the steel box girder (6) according to claim 3, characterized in that: The adjusting member comprises an adjusting frame (18) slidably arranged at the lower end of the fixing sleeve (11); the adjusting frame (18) and the fixing sleeve (11) are fixed by bolts; a steel box girder (6) is placed on the adjusting frame (18); and the fixing sleeve (11) is in contact with the steel box girder (6).

5. The auxiliary support for hoisting the steel box girder (6) according to claim 4, characterized in that: The limiting frame (10) and the adjusting frame (18) are both L-shaped, and the surfaces of the fixing sleeve (11) and the adjusting frame (18) are rough metal surfaces.

6. The auxiliary support for hoisting the steel box girder (6) according to claim 1, characterized in that: The moving mechanism comprises two symmetrically arranged moving plates (20) slidably arranged on a hanging plate (7); an electric telescopic rod (19) is fixed to the end of the hanging plate (7); the telescopic end of the electric telescopic rod (19) is fixedly connected to the side of one of the moving plates (20); a fixing groove is provided on the hanging plate (7); the upper end of the hanging column (8) extends into the fixing groove and is fixedly connected to the moving plate (20); a sliding groove (26) is provided on the moving plate (20); a sliding block (25) is fixed to the side of one end of the moving plate (20); the sliding block (25) is located in the sliding groove (26); a moving column (24) is fixed to the end of the moving plate (20) away from the sliding block (25); two adjusting grooves are provided on the hanging plate (7); the moving column (24) is located in the adjusting groove; and a moving component is provided between the moving column (24) and the hanging column (8).

7. The auxiliary support for hoisting the steel box girder (6) according to claim 6, characterized in that: The moving assembly comprises a second gear (21) rotatably connected to the lower end of the hanging plate (7); the lower end of the hanging plate (7) is slidably connected to an adjusting rack (22) and an adjusting rack (23); the second gear (21) is meshed with the adjusting rack (22) and the adjusting rack (23); the lower end of the moving column (24) extends out of the adjusting groove and is fixedly connected to the adjusting rack (22) and the adjusting rack (23).

8. The auxiliary support for hoisting a steel box girder (6) according to claim 1, characterized in that: A second hydraulic telescopic rod (5) is fixed to the upper end of the telescopic column (3), and the telescopic end of the second hydraulic telescopic rod (5) is fixedly connected to the telescopic end of the telescopic column (3).

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