CN216688993U

CN216688993U - All-welded weather-resistant steel box girder

Info

Publication number: CN216688993U
Application number: CN202123447198.2U
Authority: CN
Inventors: 李鹏飞; 靳小波; 李圣全; 任慧; 狄嘉木; 张美佳; 王建赫; 彭章良; 郭玉宝; 宗于博
Original assignee: CCCC Fourth Highway Engineering Co Ltd
Current assignee: CCCC Fourth Highway Engineering Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-07
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to the technical field of bridge engineering and discloses a weather-resistant steel all-welded steel box girder which comprises a girder body and eight groups of clamping grooves formed in the top of the girder body, clamping rods are clamped in the clamping grooves, drill blocks are fastened at the bottom ends of the clamping rods, the top ends of the clamping rods penetrate through the clamping grooves and are fastened with fixing rods, mounting discs are fastened on the outer sides of every two groups of clamping rods, and connecting rods are fastened at the tops of the mounting discs. This resistant steel all-welded steel case roof beam of waiting, through the cooperation between screwed pipe and the sleeve pipe, and then the just reversal of screwed pipe can drive the sleeve pipe upwards or move down, and sheathed tube displacement will drive the lug displacement, thereby make the lug can push up and move the fixture block and can be quick again break away from the fixture block, make the fixture block can be stable card promptly break away from the fixed orifices in the fixed orifices again that can be quick again, make the lug body can be convenient dismantlement under the condition that can stably install to the roof beam body, provide convenience for operating personnel's work.

Description

All-welded weather-resistant steel box girder

Technical Field

The utility model relates to the technical field of bridge engineering, in particular to a weather-resistant steel all-welded steel box girder.

Background

The main bearing structure of the steel bridge adopts a steel bridge, namely the steel bridge, a steel box girder is required to be used in the noise reduction process, the steel box girder is also called a steel plate box girder, is a common structural form of a large-span bridge and is generally used on a bridge with a large span, the steel box girder is called as the steel box girder because of the appearance like a box, the existing steel box girder is generally combined by a plurality of steel box girders in the installation process, lugs are arranged at the top of the existing steel box girder, then the steel box girder is lifted up by the lugs for installation, the lugs are required to be disassembled after the installation is finished, but the existing lugs are not easy to disassemble, and inconvenience is brought to the work of operators.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a weathering steel all-welded steel box girder, which solves the problem that the existing lifting lug is not easy to disassemble.

In order to achieve the purpose, the utility model provides the following technical scheme: a weather-resistant steel all-welded steel box girder comprises a girder body and eight groups of clamping grooves formed in the top of the girder body, wherein clamping rods are clamped in the clamping grooves, the top ends of the clamping rods penetrate through the clamping grooves and are fastened with fixed rods, mounting discs are fastened on the outer sides of every two groups of clamping rods, connecting rods are fastened on the top of the mounting discs, lifting lug bodies are fastened on the top ends of the connecting rods, threaded pipes are rotatably connected to the inner portions of the fixed rods, sleeves are screwed on the outer sides of the threaded pipes, jacking rods are fastened at the bottoms of the sleeves, two groups of grooves are formed in the outer sides of the clamping rods, two groups of fixing holes are formed in the outer sides of the clamping grooves, cavities are formed in the clamping rods, second springs are fastened on the inner walls of the bottoms of the cavities, movable columns are fastened on the top ends of the second springs, two groups of convex blocks are fastened on the outer sides of the movable columns, clamping blocks are clamped in the grooves, one side of the fixture block extends into the cavity, the top and the bottom of the fixture block are both fastened with a placing plate, and a first spring is fastened between the placing plate and the inner wall of the cavity.

Preferably, a balance groove is formed in the fixing rod, a balance block is fastened on the outer side of the threaded pipe, and the balance block is rotatably connected in the balance groove.

Preferably, the bump is a hemispherical bump, and one side of the fixture block close to the bump is arc-shaped.

Preferably, the inner wall of the bottom of the cavity is fastened with a limiting rod, the movable column is a hollow movable column, and the movable column is movably sleeved in the limiting rod.

Preferably, two sets of sliding grooves are formed in the fixing rod, two sets of sliding blocks are fastened to the outer side of the sleeve, and the sliding blocks are connected in the sliding grooves in a sliding mode.

Preferably, the top rod is a hollow top rod, and the diameter of the hollow inside of the top rod is larger than that of the outside of the threaded pipe.

Preferably, the bottom end of the clamping rod is fastened with a drill block, and the diameter of the bottom of the drill block is smaller than that of the top of the drill block.

Preferably, the top end of the threaded pipe penetrates through the fixing rod, and the top end of the threaded pipe is fastened with the handle.

Preferably, the width of the sliding block is matched with the width of the inner wall of the sliding groove, and the thickness of the sliding block is smaller than the length of the inner wall of the sliding groove.

Preferably, the width of the groove is matched with the width of the inner wall of the fixing hole, and the width of the fixture block is matched with the width of the inner wall of the groove.

Compared with the prior art, the utility model provides a weathering steel all-welded steel box girder, which has the following beneficial effects:

1. this resistant steel all-welded steel case roof beam of waiting, through the cooperation between screwed pipe and the sleeve pipe, and then the just reversal of screwed pipe can drive the sleeve pipe upwards or move down, and sheathed tube displacement will drive the lug displacement, thereby make the lug can push up and move the fixture block and can be quick again break away from the fixture block, make the fixture block can be stable card promptly break away from the fixed orifices in the fixed orifices again that can be quick again, make the lug body can be convenient dismantlement under the condition that can stably install to the roof beam body, provide convenience for operating personnel's work.

2. This resistant steel all-welded steel case roof beam of waiting, through setting up first spring, and then when the lug top moved the fixture block, first spring will be placed the board and extrude, and when the lug no longer top moved the fixture block, first spring will be through the mode elasticity that the board was placed to elasticity to make the quick fixed orifices that breaks away from of fixture block, and the low cost of first spring, reduced the device's manufacturing cost, increased the device's application range, suitable popularization.

3. This resistant steel all-welded steel box girder of waiting through setting up slider sliding connection in the spout, and then on the one hand, the slider has kept the sleeve pipe balanced when the displacement, prevents that the sleeve pipe from appearing the unbalance condition of rocking when the displacement, has ensured sheathed tube normal displacement, and on the other hand, the slider has restricted sheathed tube trend, prevents to appear because of the screwed pipe rotates the sleeve pipe pivoted condition of taking, has ensured the device's normal use, suitable popularization.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial structural cross-sectional view of the beam and mounting plate of the present invention;

FIG. 3 is a sectional view of the fixing rod and clamping rod structure of the present invention;

fig. 4 is an exploded view of fig. 3 with the mounting plate omitted.

In the figure: 1. a beam body; 2. the lifting lug body; 3. a handle; 4. fixing the rod; 5. mounting a disc; 6. a connecting rod; 7. clamping a stick; 8. a groove; 9. drilling a block; 10. a card slot; 11. a fixing hole; 12. a threaded pipe; 13. a counterbalance; 14. a sleeve; 15. a top stick; 16. a first spring; 17. a clamping block; 18. a movable post; 19. a second spring; 20. a limiting rod; 21. a bump; 22. a cavity; 23. a chute; 24. a slide block.

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. 1-4, a weathering steel all-welded steel box girder includes a girder 1 and eight sets of clamping grooves 10 formed at the top of the girder 1, clamping rods 7 are clamped inside the clamping grooves 10, drill blocks 9 are fastened at the bottom ends of the clamping rods 7, the diameter of the bottom of each drill block 9 is smaller than that of the top of each drill block 9, the top ends of the clamping rods 7 penetrate through the clamping grooves 10 and are fastened with fixing rods 4, mounting plates 5 are fastened on the outer sides of each two sets of clamping rods 7, connecting rods 6 are fastened at the top ends of the mounting plates 5, lifting lug bodies 2 are fastened at the top ends of the connecting rods 6, threaded pipes 12 are rotatably connected inside the fixing rods 4, the top ends of the threaded pipes 12 penetrate through the fixing rods 4, the top ends of the threaded pipes 12 are fastened with handles 3, sleeves 14 are screwed on the outer sides of the threaded pipes 12, top rods 15 are fastened at the bottom ends of the sleeves 14, and the sleeves 14 are matched with each other through the threaded pipes 12 and the sleeves 14, so that the sleeves 14 can be driven to move upwards or downwards by the forward and backward rotation of the threaded pipes 12, the displacement of the sleeve 14 drives the projection 21 to displace, so that the projection 21 can push the fixture block 17 to rapidly separate from the fixture block 17, and the fixture block 17 can be stably clamped into the fixing hole 11 and rapidly separate from the fixing hole 11, so that the lifting lug body 2 can be conveniently and rapidly disassembled under the condition of being stably installed on the beam body 1, thereby facilitating the work of an operator, wherein two groups of grooves 8 are formed on the outer side of the clamping rod 7, two groups of fixing holes 11 are formed on the outer side of the clamping groove 10, the width of each groove 8 is matched with the width of the inner wall of the corresponding fixing hole 11, the width of the fixture block 17 is matched with the width of the inner wall of the corresponding groove 8, a cavity 22 is formed in the clamping rod 7, a second spring 19 is fastened to the inner wall of the bottom of the cavity 22, a movable column 18 is fastened to the top end of the second spring 19, two groups of projections 21 are fastened to the outer side of the movable column 18, and the fixture block 17 is fastened in the inner part of the corresponding groove 8, one side of fixture block 17 stretches into in the cavity 22, fixture block 17's top and bottom all fasten and place the board, it has first spring 16 to place the fastening between board and the cavity 22 inner wall, through setting up first spring 16, and then when the fixture block 17 is moved in lug 21 top, first spring 16 will be placed the board and extrude, and when the fixture block 17 is no longer moved in lug 21 top, first spring 16 will be through the mode elasticity of elasticity placing the board and move fixture block 17, thereby make the quick fixed orifices 11 that breaks away from of fixture block 17, and first spring 16's low cost, the manufacturing cost of the device has been reduced, the application range of the device has been increased, and the device is suitable for popularization.

Specifically, in order to prevent the threaded pipe 12 from being detached from the fixing rod 4, a balance groove is formed in the fixing rod 4, a balance weight 13 is fastened to the outer side of the threaded pipe 12, and the balance weight 13 is rotatably connected to the balance groove, so that the displacement of the threaded pipe 12 can be limited by the balance weight 13.

Specifically, in order to ensure normal matching between the projection 21 and the latch 17, the projection 21 is a hemispherical projection, and one side of the latch 17 close to the projection 21 is arc-shaped, so that the projection 21 and the latch 17 can be normally matched.

Specifically, in order to prevent the dislocation of the movable column 18, the inner wall of the bottom of the cavity 22 is fastened with a limiting rod 20, the movable column 18 is a hollow movable column, and the movable column 18 is movably sleeved in the limiting rod 20, so that the moving direction of the movable column 18 can be limited by the limiting rod 20.

Specifically, in order to prevent that sleeve 14 from rotating, two sets of spout 23 have been seted up in the inside of dead lever 4, sleeve 14's outside fastening has two sets of sliders 24, slider 24 sliding connection is in spout 23, the width of slider 24 and the width looks adaptation of spout 23 inner wall, slider 24's thickness is less than the length of spout 23 inner wall, from this through setting up slider 24 sliding connection in spout 23, and then on the one hand, slider 24 has kept the balance of sleeve 14 when the displacement, prevent that sleeve 14 from appearing the unbalance condition of rocking when the displacement, sleeve 14's normal displacement has been ensured, on the other hand, slider 24 has restricted sleeve 14's trend, prevent to appear because of screwed pipe 12 rotates the driven sleeve 14 pivoted condition, the normal use of the device has been ensured, suitable popularization.

Specifically, in order to prevent the knock rod 15 from colliding with the threaded pipe 12, the knock rod 15 is provided as a hollow knock rod, and the diameter of the hollow inside of the knock rod 15 is larger than the diameter of the outside of the threaded pipe 12, thereby preventing the knock rod 15 from colliding with the threaded pipe 12.

When the lifting lug body 2 is used, the clamping rod 7 is clamped into the clamping groove 10, the groove 8 is aligned with the fixed hole 11, the threaded pipe 12 is rotated forward to drive the sleeve 14 to move downwards, the sleeve 14 moves downwards to drive the jacking rod 15 to move downwards and jack the movable post 18, the movable post 18 drives the lug 21 to move downwards and jack the two clamping blocks 17, the clamping blocks 17 are clamped into the fixed hole 11 through the groove 8, and therefore the installation of the lifting lug body 2 can be stably completed, when the lifting lug body is disassembled, the threaded pipe 12 only needs to be rotated reversely, the threaded pipe 12 rotates to drive the sleeve 14 screwed on the outer side of the threaded pipe to move upwards, the jacking rod 15 can move upwards by the upward movement of the sleeve 14, the jacking rod 15 does not jack the movable post 18 any more, the movable post 18 is sprung upwards by the second spring 19, the lug 21 does not jack the clamping block 17 any more, then the first spring 16 can bounce the clamping block 17 in a mode of bouncing the plate, and accordingly the clamping blocks 17 are separated from the fixed hole 11, therefore, the mounting plate 5 can be not mounted on the beam body 1 any more, and the disassembly of the lifting lug body 2 is completed.

To sum up, this steel box girder is welded entirely to resistant time, through the cooperation between screwed pipe 12 and the sleeve pipe 14, and then screwed pipe 12 just reverse can drive sleeve pipe 14 upwards or move down, and the displacement of sleeve pipe 14 will drive the displacement of lug 21, thereby make lug 21 can push up and move fixture block 17 and can be quick break away from fixture block 17 again, make fixture block 17 can be stable card promptly and break away from fixing hole 11 in fixing hole 11 that can be quick again, make that lug body 2 can be convenient dismantlement under the condition that can stably install to roof beam body 1, provide convenience for operating personnel's work.

This resistant steel all-welded steel box girder of waiting, through setting up first spring 16, and then when lug 21 top moved fixture block 17, first spring 16 will be placed the board and extrude, and when lug 21 no longer tops moved fixture block 17, first spring 16 will be through the mode bullet that the board was placed in the bullet, thereby make the quick fixed orifices 11 that breaks away from of fixture block 17, and first spring 16's low cost, the device's manufacturing cost has been reduced, the device's application range has been increased, suitable popularization.

This resistant steel all-welded steel box girder of waiting, through setting up 24 sliding connection of slider in spout 23, and then on the one hand, slider 24 has kept the balance of sleeve pipe 14 when the displacement, prevents that the unbalance of the condition of rocking from appearing in sleeve pipe 14 when the displacement, has ensured sleeve pipe 14's normal displacement, and on the other hand, slider 24 has restricted sleeve pipe 14's trend, prevents to appear because of screwed pipe 12 rotates the driven sleeve pipe 14 pivoted condition, has ensured the device's normal use, suitable popularization.

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 resistant steel all-welded steel box girder of waiting, includes the roof beam body (1) and sets up eight draw-in grooves (10) at roof beam body (1) top, its characterized in that: the inside joint of draw-in groove (10) has card rod (7), the top of card rod (7) runs through draw-in groove (10) and fastens with dead lever (4), and the outside of every two sets of card rod (7) all fastens has mounting disc (5), the top fastening of mounting disc (5) has connecting rod (6), the top fastening of connecting rod (6) has lug body (2), the inside rotation of dead lever (4) is connected with screwed pipe (12), the outside spiral shell of screwed pipe (12) is equipped with sleeve pipe (14), the bottom fastening of sleeve pipe (14) has top rod (15), the outside of card rod (7) is seted up two sets of recess (8), the outside of draw-in groove (10) is seted up two sets of fixed orifices (11), the inside of card rod (7) is seted up cavity (22), the bottom inner wall fastening of cavity (22) has second spring (19), the top of second spring (19) is fastened with activity post (18), the outside of activity post (18) is fastened with two sets of lugs (21), the inside joint of recess (8) has fixture block (17), one side of fixture block (17) stretches into in cavity (22), the top and the bottom of fixture block (17) are all fastened and are placed the board, it has first spring (16) to place between board and cavity (22) inner wall.

2. The weathering steel all-welded steel box girder of claim 1, characterized in that: a balance groove is formed in the fixing rod (4), a balance block (13) is fastened on the outer side of the threaded pipe (12), and the balance block (13) is rotatably connected in the balance groove.

3. The weathering steel all-welded steel box girder of claim 1, characterized in that: the convex block (21) is a hemispherical convex block, and one side of the clamping block (17) close to the convex block (21) is arc-shaped.

4. The weathering steel all-welded steel box girder of claim 1, characterized in that: the inner wall of the bottom of the cavity (22) is fastened with a limiting rod (20), the movable column (18) is a hollow movable column, and the movable column (18) is movably sleeved in the limiting rod (20).

5. The weathering steel all-welded steel box girder of claim 1, characterized in that: two sets of chutes (23) are formed in the fixing rod (4), two sets of sliding blocks (24) are fastened on the outer side of the sleeve (14), and the sliding blocks (24) are connected in the chutes (23) in a sliding mode.

6. The weathering steel all-welded steel box girder of claim 1, characterized in that: the ejector rod (15) is a hollow ejector rod, and the diameter of the hollow part in the ejector rod (15) is larger than that of the outer side of the threaded pipe (12).

7. The weathering steel all-welded steel box girder of claim 1, characterized in that: the bottom end of the clamping rod (7) is fastened with a drill block (9), and the diameter of the bottom of the drill block (9) is smaller than that of the top of the drill block (9).

8. The weathering steel all-welded steel box girder of claim 1, characterized in that: the top end of the threaded pipe (12) penetrates through the fixing rod (4), and the top end of the threaded pipe (12) is fastened with the handle (3).

9. The weathering steel all-welded steel box girder of claim 5, characterized in that: the width of the sliding block (24) is matched with the width of the inner wall of the sliding groove (23), and the thickness of the sliding block (24) is smaller than the length of the inner wall of the sliding groove (23).

10. The weathering steel all-welded steel box girder of claim 1, characterized in that: the width of recess (8) and the width looks adaptation of fixed orifices (11) inner wall, the width of fixture block (17) and the width looks adaptation of recess (8) inner wall.