Quick splicing device for bridge sections

Abstract

The utility model discloses a bridge section quick splicing device, which belongs to the technical field of bridge section splicing devices, and comprises a bridge section main body and a connecting bolt embedded and fixed on the side wall of the bridge section main body, mounting bolts are fixed on two sides of the top end surface of the bridge section main body, and a connecting frame is sleeved on the mounting bolts. A first connecting groove is vertically formed in the connecting frame, a positioning rod is fixed to the inner wall of the first connecting groove, a connecting rod is inserted into the first connecting groove, and a second connecting groove for containing the positioning rod is formed in the inner wall of the connecting rod. Compared with the prior art, the bridge section quick splicing device has the advantages that the connecting frame and the connecting rod which are clamped with each other are arranged, and the conical parts are arranged on the connecting rod and the positioning rod, so that the convenience of inserting the connecting piece is increased, the splicing of the bridge section main body is positioned conveniently, and the convenience of splicing of the bridge section main body is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of bridge segment splicing devices, specifically relating to a rapid bridge segment splicing device. Background Technology

[0002] Precast segmental box girders are a common bridge construction method. They involve manufacturing precast box girder segments in a factory, transporting them to the construction site, and assembling them to form the entire bridge. This method offers advantages such as fast construction speed, easy quality control, and lower cost. Precast segmental box girders typically consist of precast box girder segments and connectors. The precast box girder segments are usually composed of concrete and steel reinforcement, while the connectors can be prestressed tendons or ordinary steel bars. During bridge assembly, the precast box girder segments are assembled according to design requirements, and bolts are used to connect the segments to form a complete bridge structure.

[0003] Patent CN221589222U discloses a precast segmental box girder for bridges that is easy to install. The girder includes a beam body with reinforcing bars inside. A top plate is provided at the top of the beam body, and a frame is symmetrically arranged at the bottom of the top plate. A battery assembly is located inside the frame, and a sliding groove is provided inside the frame. A drive assembly is located inside the sliding groove, and a limiting plate passes through the sliding groove. The installation of the limiting plate and the square groove facilitates the rapid installation of the precast segmental box girder. After the spliced ​​beams are aligned, a servo motor drives the limiting plate to move into the square groove. Once the limiting plate is inside the square groove, a compression spring moves a limiting shaft into a positioning groove, thus limiting the position of the limiting plate.

[0004] The above technical solution uses square grooves and corresponding limiting plates for quick installation. However, due to the swaying of bridge segments during hoisting and the multiple bolts on the bridge segments that need to be plugged in, it is difficult for the protrusions to align with the grooves when two bridge segments are spliced ​​together, resulting in low splicing efficiency of bridge segments. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a bridge segment rapid splicing device, which is equipped with a connecting frame and a connecting rod that interlock with each other. The first connecting groove on the connecting frame and the second connecting groove on the connecting rod are both of the hole-like structure. At the same time, the tapered part on the connecting rod and the positioning rod further increases the convenience of inserting the connector.

[0006] To achieve this technical objective, the present invention adopts the following solution:

[0007] A rapid bridge segment splicing device includes a bridge segment body, with connecting bolts embedded in the side wall of the bridge segment body, and holes corresponding to the connecting bolts provided on the side walls of adjacent bridge segment bodies. Mounting bolts are fixed on both sides of the top surface of the bridge segment body, and connecting brackets are sleeved on the mounting bolts. The connecting brackets have a first connecting groove, a positioning rod is fixed on the inner wall of the first connecting groove, a connecting rod is inserted into the first connecting groove, and the connecting rod has a second connecting groove to accommodate the positioning rod.

[0008] Furthermore, the top of the main body of the bridge segment is provided with a receiving hole corresponding to the installation bolt, and an expansion tube is inserted into the receiving hole.

[0009] Furthermore, both the connecting frame and the connecting rod are provided with mounting holes, and are fitted onto the mounting bolts through the mounting holes.

[0010] Furthermore, both the connecting frame and the connecting rod are provided with through holes, and a first bolt is installed in the through hole. The first bolt is threaded into the expansion tube.

[0011] Furthermore, pressure plates are provided on both the connecting frame and the connecting rod, with the pressure plates corresponding to the through holes and mounting holes respectively, and nuts that abut against the pressure plates are threaded onto the mounting bolts.

[0012] Furthermore, the end of the positioning rod is provided with a fastening part, which is installed on the inner wall of the first connecting groove by a second bolt.

[0013] Furthermore, both the connecting rod and the positioning rod are provided with tapered portions, and both the first connecting groove and the second connecting groove have a funnel-shaped structure.

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

[0015] This utility model features a connecting frame and a connecting rod that interlock. Both the first connecting groove on the connecting frame and the second connecting groove on the connecting rod have a perforated structure. The tapered portions on the connecting rod and the positioning rod further enhance the ease of inserting the connectors. The connecting rod is tightly connected to the inner wall of the first connecting groove for lateral positioning, while the positioning rod is inserted into the second connecting groove for vertical positioning. During the positioning and sliding process, the connecting bolts on the two bridge segment bodies are inserted into the holes, facilitating the positioning of the bridge segment body splicing and improving the convenience of bridge segment body splicing.

[0016] By embedding an expansion tube in the receiving hole at the top of the bridge segment, the connecting frame and connecting rod are sleeved on the mounting bolt through the mounting hole, and the nut is screwed into the mounting bolt. At the same time, the first bolt is threaded into the expansion tube, so that the pressure plate squeezes the connecting frame and connecting rod to keep them fixed. After the bridge segment is installed, the first bolt and nut are removed, so that the connecting frame and connecting rod can be disassembled from the two connecting bolts simultaneously, which improves the convenience of assembling and disassembling the rapid assembly device. Attached Figure Description

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

[0018] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A;

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the connecting frame in this utility model;

[0020] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point B.

[0021] The markings in the attached diagram are as follows: 1. Bridge segment main body; 2. Mounting bolt; 3. Connecting frame; 4. Connecting rod; 5. Connecting bolt; 6. Expansion tube; 7. Receiving hole; 8. Positioning rod; 9. First connecting groove; 10. Through hole; 11. Mounting hole; 12. Second connecting groove; 13. Conical part; 14. First bolt; 15. Fastening part; 16. Second bolt; 17. Pressure plate; 18. Nut. Detailed Implementation

[0022] To fully understand the purpose, features and effects of this utility model, the following specific embodiments will be used to describe this utility model in detail, but this utility model is not limited thereto.

[0023] See Figures 1 to 4This specific embodiment provides a rapid bridge segment splicing device, including a bridge segment body 1. Connecting bolts 5 are embedded and fixed on the side walls of the bridge segment body 1, and holes corresponding to the connecting bolts 5 are provided on the side walls of adjacent bridge segment bodies 1. Mounting bolts 2 are fixed on both sides of the top surface of the bridge segment body 1. Connecting brackets 3 are sleeved on the mounting bolts 2. A first connecting groove 9 is vertically formed on the side wall of the connecting bracket 3, and a positioning rod 8 is fixed to the inner wall of the first connecting groove 9. A fastening part 15 is provided at the end of the positioning rod 8. A second bolt 16, threaded into the inner wall of the first connecting groove 9, is installed on the side wall of the fastening part 15. The second bolt 16 is an internal hexagonal bolt. A connecting rod 4 is inserted into the first connecting groove 9, and a second connecting groove 12 for accommodating the positioning rod 8 is formed on the inner wall of the connecting rod 4. Both the connecting rod 4 and the positioning rod 8 are provided with tapered portions 13, and both the first connecting groove 9 and the second connecting groove 12 have a funnel-shaped structure.

[0024] The top of the main body 1 of the bridge segment has a receiving hole 7 corresponding to the mounting bolt 2. An expansion tube 6 is embedded in the receiving hole 7. The connecting frame 3 and the connecting rod 4 both have mounting holes 11, and are fitted onto the mounting bolt 2 through the mounting holes 11. The connecting frame 3 and the connecting rod 4 both have through holes 10, in which a first bolt 14 is installed. The first bolt 14 is an internal hexagon bolt, and the first bolt 14 is threaded into the expansion tube 6. The connecting frame 3 and the connecting rod 4 are both provided with pressure plates 17, which correspond to the through holes 10 and the mounting holes 11, respectively. A nut 18 is threaded onto the mounting bolt 2 and abuts against the pressure plate 17.

[0025] Working principle: When using the device of this technical solution, the connecting frame 3 and the connecting rod 4 are respectively sleeved on the mounting bolts 2 on the top of the two interconnected bridge segment bodies 1. The nut 18 is screwed into the mounting bolt 2. At the same time, the first bolt 14 is threaded into the expansion tube 6 so that the pressure plate 17 presses the connecting frame 3 and the connecting rod 4 to keep them fixed. When the two bridge segment bodies 1 are connected to each other, the connecting rod 4 is inserted into the first connecting groove 9, and the positioning rod 8 is inserted into the second connecting groove 12 at the center position of the connecting rod 4. The tapered part 13 on the connecting rod 4 and the positioning rod 8 further increases the insertion of the connecting parts. For ease of installation, the connecting rod 4 is tightly connected to the inner wall of the first connecting groove 9 for lateral positioning, and the positioning rod 8 is inserted into the second connecting groove 12 for vertical positioning. During the positioning and sliding process, the connecting bolts 5 on the two bridge segment main bodies 1 are inserted into the holes, which facilitates the positioning of the splicing of the bridge segment main bodies 1 and improves the ease of splicing of the bridge segment main bodies 1. After the bridge segment main bodies 1 are installed, the first bolt 14 and nut 18 are removed, so that the connecting frame 3 and the connecting rod 4 are simultaneously disassembled from the two mounting bolts 2, which improves the ease of disassembly and assembly of the quick assembly device.

[0026] All technical features in this embodiment can be freely combined according to actual needs.

[0027] Finally, it should be noted that the above-listed embodiments are merely preferred embodiments of the present invention. Of course, those skilled in the art can make modifications and variations to the present invention. If such modifications and variations fall within the scope of the claims of the present invention and their equivalents, they should be considered as being within the protection scope of the present invention.

Claims

1. A rapid bridge segment splicing device, comprising a bridge segment body (1), wherein connecting bolts (5) are embedded and fixed on the side wall of the bridge segment body (1), and holes corresponding to the connecting bolts (5) are provided on the side wall of adjacent bridge segment bodies (1), characterized in that, The top surface of the bridge segment (1) is fixed with mounting bolts (2) on both sides. A connecting frame (3) is sleeved on the mounting bolt (2). The connecting frame (3) has a first connecting groove (9). A positioning rod (8) is fixed on the inner wall of the first connecting groove (9). A connecting rod (4) is inserted into the first connecting groove (9). The connecting rod (4) has a second connecting groove (12) to accommodate the positioning rod (8).

2. The bridge segment rapid splicing device according to claim 1, characterized in that, The top of the main body of the bridge segment (1) is provided with a receiving hole (7) corresponding to the installation bolt (2), and an expansion tube (6) is inserted into the receiving hole (7).

3. The rapid bridge segment splicing device according to claim 2, characterized in that, Both the connecting frame (3) and the connecting rod (4) have mounting holes (11) and are fitted onto the mounting bolts (2) through the mounting holes (11).

4. The rapid bridge segment splicing device according to claim 3, characterized in that, Both the connecting frame (3) and the connecting rod (4) have through holes (10), and a first bolt (14) is installed in the through hole (10). The first bolt (14) is threaded into the expansion tube (6).

5. The rapid bridge segment splicing device according to claim 4, characterized in that, Both the connecting frame (3) and the connecting rod (4) are equipped with pressure plates (17), which correspond to the through hole (10) and the mounting hole (11) respectively. The mounting bolt (2) is threaded with a nut (18) that abuts against the pressure plate (17).

6. The rapid bridge segment splicing device according to claim 1, characterized in that, The end of the positioning rod (8) is provided with a fastening part (15), which is installed on the inner wall of the first connecting groove (9) by a second bolt (16).

7. The rapid bridge segment splicing device according to claim 1, characterized in that, Both the connecting rod (4) and the positioning rod (8) are provided with a tapered part (13), and the first connecting groove (9) and the second connecting groove (12) are both funnel-shaped structures.

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