Steel box girder joint height adjusting device

Abstract

The utility model discloses a steel box girder joint height adjusting device, which relates to the technical field of steel box girder construction and comprises a bottom plate, a 7-shaped plate is arranged on one side of the upper surface of the bottom plate, a rotating shaft is arranged in the middle of the upper surface of the bottom plate, and a first rod and a second rod are arranged on the upper surface of the 7-shaped plate. The first rod and the second rod are rotationally connected with the bottom plate through the rotating shaft, fixing bases are arranged on the lower surfaces of the outer side ends of the first rod and the second rod, fixing bolts are connected to the inner side ends of the fixing bases through threads, and connecting grooves are formed in the right sides of the first rod and the second rod. Connecting threaded blocks are rotationally connected into the connecting grooves through bearings, a clamping screw rod is connected between the two connecting threaded blocks through threads, the whole adjusting device is fixedly arranged on the box girder, after hoisting is completed, the adjusting device is easy and convenient to disassemble, welding heat treatment is not needed, and the local strength of the box girder cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of steel box girder construction, in particular to a steel box girder joint height adjustment device. Background Art

[0002] Steel box girder refers to a structural form commonly used in bridge construction, usually welded from steel plates, presenting a box-shaped structure. The steel box girder joint height adjustment device is usually used in bridge construction, mainly used to adjust the joint height of the steel box girder to ensure the stability and safety of the bridge structure. It can be adjusted according to the design requirements of the bridge and the characteristics of the geographical environment to ensure that the connection of the steel box girder can maintain the appropriate height and position under different conditions. The traditional height adjustment device uses welding to fix the 7-shaped plate to the outer surface of the box girder. After the hoisting is completed, the removal of the 7-shaped plate is cumbersome, and the welding heat treatment affects the local strength of the box girder. Utility Model Content

[0003] The purpose of the utility model is to provide a steel box girder joint height adjustment device to solve the problem that the traditional height adjustment device proposed in the above background technology uses welding to fix the 7-shaped plate to the outer surface of the box girder, and after the lifting is completed, the removal of the 7-shaped plate is cumbersome, and the welding heat treatment affects the local strength of the box girder.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel box girder joint height adjustment device, comprising a base plate, a 7-shaped plate is provided on one side of the upper surface of the base plate, a rotating shaft is provided at the middle position of the upper surface of the base plate, a No. 1 rod and a No. 2 rod are provided on the upper surface of the 7-shaped plate, the No. 1 rod and the No. 2 rod are rotatably connected to the base plate through the rotating shaft, a fixing seat is provided on the lower surface of the outer end of the No. 1 rod and the No. 2 rod, a fixing bolt is threadedly connected to the inner end of the fixing seat, a connecting groove is provided on the right side of the No. 1 rod and the No. 2 rod, a connecting thread block is rotatably connected to the inside of the connecting groove through a bearing, and a clamping screw is threadedly connected between the two connecting thread blocks.

[0005] Preferably, a stacking groove is provided at the lower end of the middle position of the No. 1 rod and the upper end of the middle position of the No. 2 rod, and the stacking groove is arranged in a parallelogram shape, and the No. 1 rod and the No. 2 rod are cross-arranged through the stacking groove.

[0006] Preferably, a pull rod is provided between the lower ends of the No. 1 rod and the No. 2 rod and the fixing seat, and the fixing seat is fixedly connected to the lower surfaces of the No. 1 rod and the No. 2 rod through the pull rod.

[0007] Preferably, a nut section is provided at a middle position of the clamping screw and between the two connecting threaded blocks.

[0008] Preferably, a reinforcing plate is provided between the middle position of the right outer surface of the 7-shaped plate and the upper surface of the bottom plate.

[0009] Compared with the prior art, the beneficial effects of the utility model are: instead of the traditional method of welding to fix the 7-shaped plate to the height adjustment device on the outer surface of the box beam, the clamping screw drives the No. 1 rod and the No. 2 rod to clamp the box beam, and the fixing seat is fixed to the upper edge of the box beam by fixing bolts, so that the overall adjustment device is fixed to the box beam. After the lifting is completed, the removal of the adjustment device is simple and does not require welding heat treatment, and will not affect the local strength of the box beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is an axonometric drawing of the main structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the main structure of the utility model;

[0012] Figure 3 This is a front cross-sectional view of the main structure of the utility model;

[0013] Figure 4 It is a top view schematic diagram of the main structure of the utility model;

[0014] Figure 5 It is a top sectional view of the main structure of the utility model.

[0015] In the figure: 1-base plate, 2-7-shaped plate, 3-rotating shaft, 4-rod No. 1, 5-rod No. 2, 6-fixed seat, 7-fixing bolt, 8-connecting groove, 9-connecting thread block, 10-clamping screw, 11-stacking groove, 12-pull rod, 13-nut segment, 14-reinforcement plate. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-5The utility model provides a steel box girder joint height adjustment device, comprising a base plate 1, a 7-shaped plate 2 is provided on one side of the upper surface of the base plate 1, a rotating shaft 3 is provided in the middle position of the upper surface of the base plate 1, a No. 1 rod 4 and a No. 2 rod 5 are provided on the upper surface of the 7-shaped plate 2, the No. 1 rod 4 and the No. 2 rod 5 are rotatably connected to the base plate 1 through the rotating shaft 3, a fixing seat 6 is provided on the lower surface of the outer end of the No. 1 rod 4 and the No. 2 rod 5, the inner end of the fixing seat 6 is connected with a fixing bolt 7 through a thread, a connecting groove 8 is opened on the right side of the No. 1 rod 4 and the No. 2 rod 5, a connecting thread block 9 is rotatably connected to the inside of the connecting groove 8 through a bearing, and a clamping screw 10 is connected between the two connecting thread blocks 9 through a thread.

[0018] When in use, the base plate 1 is placed on the upper surface of the box beam, and then the clamping bolt 10 is rotated, and the clamping bolt 10 is connected with the threaded connection of the connecting thread block 9, and a connecting groove 8 is set on the No. 1 rod 4 and the No. 2 rod 5 to leave space for the rotation of the connecting thread block 9 and the relative movement of the clamping screw 10, driving the No. 1 rod 4 and the No. 2 rod 5 to clamp and move on the upper surface of the base plate 1 under the support of the rotating shaft 3, and the upper edge of the box beam is clamped by the No. 1 rod 4 and the No. 2 rod 5, so that the fixing seat 6 is against the lower end of the upper edge of the box beam, and the fixing bolt 7 is rotated to make the upper end of the fixing bolt 7 against the lower end of the upper edge of the box beam, and the No. 1 rod 4 and the No. 2 rod 5 are fixed to the upper end of the box beam through the fixing seat 6. At this time, the 7-shaped plate 2 corresponds to the upper end of the box beam on the other side, and a jack is set between the box beam on the other side and the 7-shaped plate 2, so as to adjust the relative height between the two box beams.

[0019] A stacking groove 11 is provided at the lower end of the middle position of the No. 1 rod 4 and the upper end of the middle position of the No. 2 rod 5. The stacking groove 11 is arranged in a parallelogram shape. The No. 1 rod 4 and the No. 2 rod 5 are cross-arranged through the stacking groove 11. By arranging the stacking groove 11 on the No. 1 rod 4 and the No. 2 rod 5, the No. 1 rod 4 and the No. 2 rod 5 are stacked on the bottom plate 1, and the stacking groove 11 leaves space for the staggered rotation of the No. 1 rod 4 relative to the No. 2 rod 5.

[0020] A pull rod 12 is provided between the lower ends of the No. 1 rod 4 and the No. 2 rod 5 and the fixed seat 6, and the fixed seat 6 is fixedly connected to the lower surfaces of the No. 1 rod 4 and the No. 2 rod 5 through the pull rod 12. The fixed seat 6 is fixed to the lower ends of the No. 1 rod 4 and the No. 2 rod 5 through the pull rod 12, and a clamping space is reserved between the fixed seat 6 and the No. 1 rod 4 and the No. 2 rod 5, corresponding to the upper edge of the box girder.

[0021] A nut section 13 is provided in the middle position of the clamping screw 10 and between the two connecting thread blocks 9. By providing the nut section 13 on the clamping screw 10, it is convenient for the staff to connect the nut section 13 with the wrench to rotate the clamping screw 10.

[0022] A reinforcing plate 14 is provided between the middle position of the right outer surface of the 7-shaped plate 2 and the upper surface of the bottom plate 1. By providing the reinforcing plate 14 between the 7-shaped plate 2 and the bottom plate 1, the connection strength between the 7-shaped plate 2 and the bottom plate 1 is improved.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel box beam joint height adjustment device, characterized in that: The invention comprises a base plate (1), a 7-shaped plate (2) is provided on one side of the upper surface of the base plate (1), a rotating shaft (3) is provided at the middle position of the upper surface of the base plate (1), a No. 1 rod (4) and a No. 2 rod (5) are provided on the upper surface of the 7-shaped plate (2), the No. 1 rod (4) and the No. 2 rod (5) are rotatably connected to the base plate (1) through the rotating shaft (3), a fixing seat (6) is provided on the lower surface of the outer end of the No. 1 rod (4) and the No. 2 rod (5), the inner end of the fixing seat (6) is connected with a fixing bolt (7) through a thread, a connecting groove (8) is provided on the right side of the No. 1 rod (4) and the No. 2 rod (5), a connecting thread block (9) is rotatably connected to the inside of the connecting groove (8) through a bearing, and a clamping screw (10) is connected between the two connecting thread blocks (9) through a thread.

2. A steel box beam joint height adjustment device according to claim 1, characterized in that: A stacking groove (11) is provided at the lower end of the middle position of the first rod (4) and the upper end of the middle position of the second rod (5). The stacking groove (11) is arranged in a parallelogram shape, and the first rod (4) and the second rod (5) are arranged crosswise through the stacking groove (11).

3. The device for adjusting the joint height of a steel box beam according to claim 1, characterized in that: A pull rod (12) is provided between the lower ends of the No. 1 rod (4) and the No. 2 rod (5) and the fixed seat (6); the fixed seat (6) is fixedly connected to the lower surfaces of the No. 1 rod (4) and the No. 2 rod (5) through the pull rod (12).

4. The steel box beam joint height adjustment device according to claim 1, characterized in that: A nut section (13) is provided at the middle position of the clamping screw (10) and between the two connecting threaded blocks (9).

5. The steel box beam joint height adjustment device according to claim 1, characterized in that: A reinforcing plate (14) is provided between the middle position of the right outer surface of the 7-shaped plate (2) and the upper surface of the bottom plate (1).

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