A splicing and leveling device for steel box girders

Abstract

This utility model discloses a splicing and leveling device for steel box girders, relating to the field of building construction technology. The splicing and leveling device includes a first fixing plate and a second fixing plate. The first fixing plate is installed on the upper end of a first segment near the second segment, and the second fixing plate is installed on the second segment near the first segment. It also includes a bracket, which is welded and fixed above the first fixing plate. Two sets of brackets are symmetrically distributed on both sides of the upper end of the first fixing plate. A connecting sleeve is installed between the two brackets, and the connecting sleeve rotates between the two brackets via a rotating shaft, causing a screw to be inserted into a threaded hole inside the connecting sleeve. A second motor then drives the screw to rotate slowly, thereby moving the connecting sleeve on the screw and pulling the first segment towards the second segment. This achieves multi-directional leveling, allowing the first segment to gradually approach the second segment for easier docking.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a splicing and leveling device for steel box girders. Background Technology

[0002] Steel box girders are a type of steel structure component widely used in bridge and building engineering. The box section provides excellent bending and torsional stiffness, making it suitable for large-span structures. At the same time, the internal space can be used for pipeline layout or to reduce self-weight. In the manufacturing process of existing steel box girders, there is often a height deviation between adjacent segments, and the two segments with the height deviation cannot be welded and fixed immediately.

[0003] For example, the announcement number CN217601209U is a steel box girder splicing and leveling device. The device includes a driver and a first steel plate. The driver includes a telescopic rod that can be extended in the height direction. The bottom of the driver is placed on the first segment of the steel box girder. The driver is used to adjust two segments of the steel box girder that are not at the same height to a level state, which saves time and effort and has high construction efficiency.

[0004] The aforementioned device can only be adjusted vertically and cannot be adjusted in other directions, making leveling difficult and reducing construction efficiency. Therefore, we propose a splicing and leveling device for steel box girders to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a splicing and leveling device for steel box girders, so as to solve the problem mentioned in the background art that the above-mentioned device can only be adjusted in the vertical direction and cannot be adjusted in other directions, resulting in difficulty in leveling and low construction efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a splicing and leveling device for steel box girders, comprising a first fixing plate and a second fixing plate, wherein the first fixing plate is installed on the upper end of the first segment near the second segment, and the second fixing plate is installed on the second segment near the first segment;

[0007] Also includes:

[0008] The bracket is fixed above the first fixed plate by welding. Two sets of brackets are symmetrically distributed on both sides of the upper end of the first fixed plate. A connecting sleeve is installed between the two brackets and rotates between the two brackets via a rotating shaft. The connecting sleeve has an integrally formed threaded hole inside, which passes through both ends of the connecting sleeve. A fixed frame is fixed to the upper end of the second fixed plate by welding. A fixed seat is welded to the upper end of the fixed frame near the first segment. A rotating seat is installed inside the fixed seat, and one side of the rotating seat is connected to the fixed seat via a rotating shaft. A screw is connected to the rotating seat near the first segment, and the screw is threaded into the threaded hole.

[0009] Preferably, a second motor is installed on the inner side of the rotating base, and the second motor drives the screw to rotate.

[0010] Preferably, a first motor is provided on the outer side of the fixed base, the first motor is connected to the other side of the rotating base, and the first motor drives the rotating base to rotate inside the fixed base.

[0011] Preferably, the first fixing plate is fixed to the surface of the first segment by bolts, and the second fixing plate is fixed to the surface of the second segment by bolts.

[0012] Preferably, a limiting slider is provided at the bottom of the second segment, and the limiting slider is located on the side of the bottom of the second segment close to the first segment. A connecting plate is provided at the bottom of the first segment, and the front half of the connecting plate extends out of the first segment near the second segment. A sliding groove is provided on the surface of the front half of the connecting plate. The end of the sliding groove near the second segment is open, and the limiting slider slides and engages inside the sliding groove.

[0013] Preferably, the limiting slider is fixed to the bottom of the second segment near the first segment by bolts, and the connecting plate is fixed to the bottom of the first segment by bolts.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. After the second segment is installed, the first segment is suspended. Then, the connecting sleeve is slowly aligned with the screw, and the screw is inserted into the threaded hole inside the connecting sleeve. Then, the second motor is used to drive the screw to rotate slowly, thereby moving the connecting sleeve on the screw and pulling the first segment towards the second segment. This achieves multi-directional leveling, allowing the first segment to slowly approach the second segment for easy docking.

[0016] 2. By installing a connecting plate at the bottom of the first segment and a limiting slider at the bottom of the second segment, the first segment slowly moves closer to the second segment via the screw drive, aligning the connecting plate with the limiting slider. At this point, the first and second segments are parallel. Then, the screw continues to rotate, gradually aligning the edge of the first segment with the edge of the second segment until both edges are aligned. After this, the edges of the first and second segments can be welded and fixed together. Finally, the first fixing plate, the second fixing plate, the connecting plate, and the limiting slider components are removed to complete the splicing and leveling. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the completed assembly of this utility model;

[0018] Figure 2 This is a schematic diagram of the splicing process of this utility model;

[0019] Figure 3 This is a schematic diagram of the bottom of the assembled assembly of this utility model;

[0020] Figure 4 This is a bottom view of the splicing process of this utility model;

[0021] In the diagram: 1. First segment; 2. Second segment; 3. First fixing plate; 4. Second fixing plate; 5. Fixing frame; 6. Fixing seat; 7. Rotating seat; 8. First motor; 9. Second motor; 10. Screw; 11. Connecting sleeve; 12. Threaded hole; 13. Bracket; 14. Limiting slider; 15. Connecting plate; 16. Slide groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] This utility model provides a splicing and leveling device for steel box girders. The device includes a first fixing plate 3 and a second fixing plate 4. The first fixing plate 3 is installed on the upper end of the first segment 1 near the second segment 2, and the second fixing plate 4 is installed on the second segment 2 near the first segment 1. The first fixing plate 3 is bolted to the surface of the first segment 1, and the second fixing plate 4 is bolted to the surface of the second segment 2. This utility model primarily solves the problem that the aforementioned device can only be adjusted vertically and cannot be adjusted in other directions, leading to difficulties in leveling and low construction efficiency.

[0024] For the device provided by this utility model, please refer to Figure 1-4 The following is a detailed introduction.

[0025] The bracket 13 is welded and fixed above the first fixed plate 3. Two sets of brackets 13 are symmetrically distributed on both sides of the upper end of the first fixed plate 3. A connecting sleeve 11 is installed between the two brackets 13, and the connecting sleeve 11 rotates between the two brackets 13 via a rotating shaft. The connecting sleeve 11 has a threaded hole 12 integrally formed inside, and the threaded hole 12 passes through both ends of the connecting sleeve 11. A fixing frame 5 is welded and fixed to the upper end of the second fixed plate 4. A fixing seat 6 is welded to the upper end of the fixing frame 5 near the first segment 1. A rotating seat 7 is installed inside the fixing seat 6, and one side of the rotating seat 7 is connected to the fixing seat 6 via a rotating shaft. A screw 10 is connected to the side of the rotating seat 7 near the first segment 1, and the screw 10 is threadedly connected to the threaded hole 12. A second motor 9 is installed inside the rotating seat 7, and the second motor 9 drives the screw 10 to rotate.

[0026] Please see Figure 1-2 To further explain, a first motor 8 is provided on one side of the fixed base 6. The first motor 8 is connected to the other side of the rotating base 7, and the first motor 8 drives the rotating base 7 to rotate inside the fixed base 6. By using the motor to drive the rotating base 7 to rotate, the angle between the first segment 1 and the second segment 2 is adjusted so that the first segment 1 is level with the second segment 2, which facilitates welding.

[0027] Please see Figure 3-4 To further explain, a limiting slider 14 is provided at the bottom of the second segment 2, and the limiting slider 14 is located on the side of the bottom of the second segment 2 near the first segment 1. A connecting plate 15 is provided at the bottom of the first segment 1, and the front half of the connecting plate 15 extends out of the end of the first segment 1 near the second segment 2. A sliding groove 16 is provided on the surface of the front half of the connecting plate 15. The end of the sliding groove 16 near the second segment 2 is open, and the limiting slider 14 is slidably engaged inside the sliding groove 16. The limiting slider 14 is fixed to the side of the bottom of the second segment 2 near the first segment 1 by bolt connection, and the connecting plate 15 is fixed to the bottom of the first segment 1 by bolt connection.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A splicing and leveling device for steel box girder, comprising a first fixing plate (3) and a second fixing plate (4), wherein the first fixing plate (3) is installed on the side of the upper end of the first segment (1) near the second segment (2), and the second fixing plate (4) is installed on the side of the second segment (2) near the first segment (1); Its features are: Also includes: The bracket (13) is fixed above the first fixed plate (3) by welding. The bracket (13) has two sets and is symmetrically distributed on both sides of the upper end of the first fixed plate (3). A connecting sleeve (11) is installed between the two brackets (13). The connecting sleeve (11) rotates between the two brackets (13) through a rotating shaft. The connecting sleeve (11) has a threaded hole (12) integrally formed inside. The threaded hole (12) passes through both ends of the connecting sleeve (11). The upper end of the second fixed plate (4) is fixed with a fixed frame (5) by welding. A fixed seat (6) is welded to the side of the upper end of the fixed frame (5) near the first segment (1). A rotating seat (7) is installed on the inner side of the fixed seat (6). One side of the rotating seat (7) is connected to the fixed seat (6) through a rotating shaft. A screw (10) is connected to the side of the rotating seat (7) near the first segment (1). The screw (10) is threadedly connected to the threaded hole (12).

2. The splicing and leveling device for steel box girders according to claim 1, characterized in that: The inner side of the rotating seat (7) is equipped with a second motor (9), and the second motor (9) drives the screw (10) to rotate.

3. The splicing and leveling device for steel box girders according to claim 1, characterized in that: A first motor (8) is provided on one side of the fixed base (6). The first motor (8) is connected to the other side of the rotating base (7), and the first motor (8) drives the rotating base (7) to rotate inside the fixed base (6).

4. The splicing and leveling device for steel box girders according to claim 1, characterized in that: The first fixing plate (3) is fixed to the surface of the first segment (1) by bolt connection, and the second fixing plate (4) is fixed to the surface of the second segment (2) by bolt connection.

5. The splicing and leveling device for steel box girders according to claim 1, characterized in that: The bottom of the second segment (2) is provided with a limiting slider (14), and the limiting slider (14) is located on the side of the bottom of the second segment (2) close to the first segment (1). The bottom of the first segment (1) is provided with a connecting plate (15), and the front half of the connecting plate (15) extends out of the end of the first segment (1) close to the second segment (2). The front half of the surface of the connecting plate (15) is provided with a sliding groove (16). The end of the sliding groove (16) close to the second segment (2) is open, and the limiting slider (14) slides and engages inside the sliding groove (16).

6. A splicing and leveling device for steel box girders according to claim 5, characterized in that: The limiting slider (14) is fixed to the bottom of the second section (2) near the first section (1) by bolts, and the connecting plate (15) is fixed to the bottom of the first section (1) by bolts.

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