CN216737131U

CN216737131U - Box girder convenient to hoist and mount

Info

Publication number: CN216737131U
Application number: CN202122780488.2U
Authority: CN
Inventors: 李炯; 何英英; 李丽琴
Original assignee: Hercules Construction Co ltd
Current assignee: Hercules Construction Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-06-14
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses a box girder convenient to hoist, which comprises a steel box girder top plate, wherein a fixed steel rail is fixedly arranged at the top of the steel box girder top plate through bolts, a hoisting block is movably arranged on the inner wall of the fixed steel rail, a lifting lug is fixedly arranged at the top of the hoisting block, a hoisting hole is formed in the middle of the lifting lug, a movable groove is formed in the bottom of the lifting lug, and a fixed column is fixedly arranged at the bottom of the inner wall of the movable groove. According to the utility model, the lifting lug drives the lifting block to move on the inner wall of the fixed steel rail and adjust the position of the lifting lug, then the rotating pipe is driven to rotate through the gear, the rotating pipe is matched with the rotating column to drive the first threaded column to be in threaded connection with the inner wall of the first threaded hole, the first threaded column drives the positioning block to move downwards, the positioning block is further tightly attached to the top of the lifting block, and at the moment, the positions of the lifting lug and the lifting lug are limited through the matching of the positioning block and a steel box girder top plate, so that the purposes of adjusting the position of the lifting lug and stably fixing the lifting lug are achieved.

Description

Box girder convenient to hoist and mount

Technical Field

The utility model relates to the technical field of bridge building construction equipment, in particular to a box girder convenient to hoist.

Background

Steel box girder structures are increasingly applied to various highway bridges, and with the continuous increase of steel box bridge spans and the rapid development of installation technologies, steel box bridges are developed in the directions of large spans, large sections, overweight and the like. Horizontal, vertical piecemeal will be carried out to each festival section according to hoist and mount and transporting capacity in the preparation installation, can set up a plurality of lugs on every block, demolish the lug after the hoist and mount is accomplished.

However, in the prior art, the lifting lugs are all fixed at the top of the top plate of the steel box girder in a welding mode in actual use, so that the positions of the lifting lugs are not convenient to adjust.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a box girder convenient to hoist so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: comprises a steel box girder top plate, the top of the steel box girder top plate is fixedly provided with a fixed steel rail through a bolt, the inner wall of the fixed steel rail is movably provided with a hoisting block, the top of the hoisting block is fixedly provided with a lifting lug, the middle part of the lifting lug is provided with a lifting hole, the bottom of the lifting lug is provided with a movable groove, the bottom of the inner wall of the movable groove is fixedly provided with a fixed column, the fixed column is fixedly arranged at the top of the hoisting block, the inner wall of the movable groove is rotatably provided with a gear, the surface of the gear is engaged with a rotating pipe, the inner wall of the rotating pipe is movably sleeved with a rotating column, the bottom of the rotating column is fixedly provided with a first threaded column, the top of the hoisting block corresponding to the position of the first threaded column is provided with a first threaded hole, and the inner wall of the first threaded hole is in threaded arrangement with the surface of the first threaded column, and a positioning block is fixedly arranged at the bottom of the first threaded column.

Preferably, the bottom of the hoisting block corresponding to the positioning block is provided with a holding tank, and the inner wall of the holding tank is movably connected with the surface of the positioning block.

Preferably, the surface of the rotating column and the inner wall of the rotating pipe are both in regular polygon structures, and the size of the inner wall of the rotating pipe is matched with that of the rotating column.

Preferably, the top of the rotating column is fixedly connected with a second threaded column, a second threaded groove is formed in the middle of the position, corresponding to the second threaded column, of the lifting lug, and the inner wall of the second threaded groove is in threaded connection with the surface of the second threaded column.

Preferably, the top of the gear is fixedly connected with worm gear teeth, the surface of the worm gear teeth is meshed with a worm gear, the middle of the worm gear is fixedly connected with a rotating shaft, the surface of the rotating shaft is rotatably connected with a fixing block through a bearing, and the fixing block is fixedly connected to the surface of the lifting lug.

Preferably, the top of the inner wall of the fixed steel rail is fixedly connected with a positioning strip, the positioning strip is movably connected to the top of the hoisting block, and the bottom of the positioning strip, the bottom of the positioning block and the top of the hoisting block are all arranged roughly.

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

1. the lifting lug drives the lifting block to move on the inner wall of the fixed steel rail and adjust the position of the lifting lug, then the gear drives the rotating pipe to rotate, so that the rotating pipe is matched with the rotating column to drive the first threaded column to be in threaded connection with the inner wall of the first threaded hole, the first threaded column drives the positioning block to move downwards, the positioning block is tightly attached to the top of the lifting block, and the positioning block is matched with the steel box girder top plate to limit the positions of the lifting lug and the lifting lug, so that the purposes of adjusting the position of the lifting lug and stably fixing are achieved;

2. the rotating shaft is rotated, so that the rotating shaft drives the worm gear to rotate, the worm gear drives the gear to rotate through the gear teeth, power is provided for rotation of the gear, and the rotating column and the positioning block can be guided to move vertically by arranging the second threaded column and the second threaded groove and matching the first threaded hole and the first threaded column.

Drawings

FIG. 1 is a front sectional view of the overall structure of a box girder convenient to hoist according to the utility model;

FIG. 2 is a front sectional view of a box girder fixing steel rail structure convenient for hoisting according to the utility model;

fig. 3 is a side sectional view of the box girder lifting lug structure convenient for lifting.

In the figure: 1. a steel box girder top plate; 2. fixing the steel rail; 3. hoisting the blocks; 4. lifting lugs; 5. hoisting holes; 6. a movable groove; 7. fixing a column; 8. a gear; 9. rotating the tube; 10. rotating the column; 11. a first threaded post; 12. a first threaded hole; 13. positioning blocks; 14. accommodating grooves; 15. a second threaded post; 16. a second thread groove; 17. worm gear teeth; 18. a worm gear; 19. a rotating shaft; 20. a fixed block; 21. and (6) positioning the strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: comprises a steel box girder top plate 1, a fixed steel rail 2 is fixedly arranged at the top of the steel box girder top plate 1 through a bolt, the inner wall of the fixed steel rail 2 is movably connected with a hoisting block 3, a lifting lug 4 is fixedly arranged at the top of the hoisting block 3, a hoisting hole 5 is arranged in the middle of the lifting lug 4, a movable groove 6 is arranged at the bottom of the lifting lug 4, a fixed column 7 is fixedly arranged at the bottom of the inner wall of the movable groove 6, the fixed column 7 is fixedly arranged at the top of the hoisting block 3, the inner wall of the movable groove 6 is rotatably connected with a gear 8, the surface of the gear 8 is engaged with a rotating pipe 9, the inner wall of the rotating pipe 9 is movably sleeved with a rotating column 10, the bottom of the rotating column 10 is fixedly provided with a first threaded column 11, the top of the hoisting block 3 corresponding to the position of the first threaded column 11 is provided with a first threaded hole 12, and the inner wall of the first threaded hole 12 is in threaded connection with the surface of the first threaded column 11, and a positioning block 13 is fixedly mounted at the bottom of the first threaded column 11.

The bottom of the position of the hoisting block 3 corresponding to the positioning block 13 is provided with an accommodating groove 14, and the inner wall of the accommodating groove 14 is movably connected with the surface of the positioning block 13.

The surface of the rotating column 10 and the inner wall of the rotating tube 9 are both in regular polygon structures, and the size of the inner wall of the rotating tube 9 is matched with that of the rotating column 10.

The top of the rotating column 10 is fixedly provided with a second threaded column 15, the middle part of the lifting lug 4 corresponding to the second threaded column 15 is provided with a second threaded groove 16, and the inner wall of the second threaded groove 16 is in threaded connection with the surface of the second threaded column 15.

The top of the gear 8 is fixedly provided with worm gear teeth 17, the surface of the worm gear teeth 17 is engaged with a worm gear 18, the middle part of the worm gear 18 is fixedly provided with a rotating shaft 19, the surface of the rotating shaft 19 is rotatably connected with a fixing block 20 through a bearing, and the fixing block 20 is fixedly arranged on the surface of the lifting lug 4.

The top fixed mounting of 2 inner walls of fixed rail has location strip 21, and location strip 21 swing joint is at the top of hoist and mount piece 3, and the bottom of location strip 21, the bottom of locating piece 13 and the top of hoist and mount piece 3 all set up roughly.

The working principle is as follows: when the lifting device is used, the lifting lug 4 drives the lifting block 3 to move on the inner wall of the fixed steel rail 2 and adjust the position of the lifting lug 4, when the lifting lug 4 moves to a target position, the rotating shaft 19 is rotated, so that the rotating shaft 19 drives the worm gear 18 to rotate, further the worm gear 18 drives the gear 8 to rotate through the worm gear teeth 17, thereby providing power for the rotation of the gear 8, when the gear 8 rotates, the gear 8 drives the rotating pipe 9 to rotate, further the rotating pipe 9 drives the rotating column 10 to rotate, and when the rotating column 10 rotates, the rotating column 10 drives the first threaded column 11 to be in threaded connection with the inner wall of the first threaded hole 12, and the first threaded column 11 drives the positioning block 13 to move downwards, further the positioning block 13 is tightly attached to the top of the lifting block 3, and the lifting block 3 is driven to move upwards, so that the top of the lifting block 3 is tightly attached to the bottom of the positioning strip 21, at this moment, the positions of the hoisting block 3 and the lifting lug 4 are limited by the matching of the positioning block 13 and the steel box girder top plate 1, so that the purposes of adjusting the position of the lifting lug 4 and stably fixing are achieved, and the guide effect on the movement of the rotating column 10 and the positioning block 13 can be achieved by the matching of the first threaded column 12 and the first threaded column 11 through the arrangement of the second threaded column 15 and the second threaded groove 16, so that the rotating column 10 and the positioning block 13 can vertically move up and down.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a case roof beam convenient to hoist and mount, includes steel case roof beam roof plate (1), its characterized in that: the steel box girder comprises a steel box girder top plate (1), wherein a fixed steel rail (2) is fixedly arranged at the top of the steel box girder top plate (1) through a bolt, a hoisting block (3) is movably arranged on the inner wall of the fixed steel rail (2), a lifting lug (4) is fixedly arranged at the top of the hoisting block (3), a hoisting hole (5) is formed in the middle of the lifting lug (4), a movable groove (6) is formed in the bottom of the lifting lug (4), a fixed column (7) is fixedly arranged at the bottom of the inner wall of the movable groove (6), the fixed column (7) is fixedly arranged at the top of the hoisting block (3), a gear (8) is rotatably arranged on the inner wall of the movable groove (6), a rotating pipe (9) is meshed on the surface of the gear (8), a rotating column (10) is movably sleeved on the inner wall of the rotating pipe (9), a first threaded column (11) is fixedly arranged at the bottom of the rotating column (10), a first threaded column (12) is formed in the top of the hoisting block (3) corresponding to the first threaded column (11), and the inner wall of the first threaded hole (12) is in threaded arrangement with the surface of the first threaded column (11), and a positioning block (13) is fixedly arranged at the bottom of the first threaded column (11).

2. The box girder convenient to hoist of claim 1, characterized in that: the bottom of the position, corresponding to the positioning block (13), of the hoisting block (3) is provided with an accommodating groove (14), and the inner wall of the accommodating groove (14) is movably connected with the surface of the positioning block (13).

3. The box girder convenient to hoist of claim 1, characterized in that: the surface of the rotating column (10) and the inner wall of the rotating tube (9) are both in regular polygon structures, and the size of the inner wall of the rotating tube (9) is matched with that of the rotating column (10).

4. The box girder convenient to hoist of claim 1, characterized in that: the top of the rotating column (10) is fixedly connected with a second threaded column (15), a second threaded groove (16) is formed in the middle of the position, corresponding to the second threaded column (15), of the lifting lug (4), and the inner wall of the second threaded groove (16) is in threaded connection with the surface of the second threaded column (15).

5. The box girder convenient to hoist of claim 1, characterized in that: the top fixedly connected with worm gear teeth (17) of gear (8), the surface meshing of worm gear teeth (17) has worm wheel (18), the middle part fixedly connected with axis of rotation (19) of worm wheel (18), the surface of axis of rotation (19) is rotated through the bearing and is connected with fixed block (20), and fixed block (20) fixed connection is on the surface of lug (4).

6. The box girder convenient to hoist of claim 1, characterized in that: the top fixedly connected with location strip (21) of fixed rail (2) inner wall, and location strip (21) swing joint is at the top of hoist and mount piece (3), the bottom of location strip (21), the bottom of locating piece (13) and the equal coarse setting in top of hoist and mount piece (3).