Multifunctional assembly type steel frame bridge structure

Abstract

The invention relates to the technical field of steel frame bridges, and provides a multifunctional assembly type steel frame bridge structure which comprises a bridge frame and bailey beams. A bailey beam is movably installed at the top end of the bridge frame, a cross beam is movably installed at the top end of the bailey beam, a bridge deck is movably installed at the top end of the cross beam, and a clamping structure is arranged at the joint of the bridge deck and the cross beam. By arranging the clamping structure, the support is placed on the top of the beret piece, a screw rod is rotated to control a movable block and a limiting block to be close to each other, the movable block moves downwards to pull a clamping piece to extrude and fix a cross beam inwards, the clamping piece clamps and fixes the cross beam, and meanwhile the movable block makes contact with the limiting block; and the screw rod is always subjected to additional pulling force and friction force, so that the anti-loosening effect is achieved, the multifunctionality of the assembly type steel frame bridge structure is achieved, the anti-loosening effect is achieved while disassembly and assembly are convenient, and the stability and safety of the structure are enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of steel frame bridges, and in particular to a multifunctional assembled steel frame bridge structure. Background Art

[0002] As one of the important forms of modern bridge engineering, the prefabricated steel frame bridge structure has the remarkable characteristics of simple structure, light components, convenient transportation, flexible combination, fast erection, convenient disassembly and assembly, and reusable components. This structure is widely used in many fields such as national defense and war preparedness, transportation engineering, emergency rescue and disaster relief. Prefabricated steel frame bridge refers to a bridge whose main load-bearing structure is made of steel, and the components are prefabricated in the factory and then transported to the site for assembly. This type of bridge is also called a prefabricated steel bridge or Bailey steel bridge;

[0003] The conventional existing technical solutions have the following defects: the components of the assembled steel frame bridge need to be connected by welding, bolting, etc. These connection constructions require high technical level and precision requirements to ensure the overall stability and safety of the bridge, and the installation of a large number of bolts increases the difficulty of the work, and there is no good anti-loosening structure. During long-term use, the bridge needs to be frequently inspected, repaired and reinforced, and the maintenance cost is relatively high. Summary of the invention

[0004] The purpose of the present invention is to provide a multifunctional assembled steel frame bridge structure to solve the defect that the existing assembled steel frame bridge structure is inconvenient to assemble.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a multifunctional assembled steel frame bridge structure, including a bridge frame and a Bailey beam; the top of the bridge frame is movably installed with a Bailey beam, and the top of the Bailey beam is movably installed with a crossbeam, the top of the crossbeam is movably installed with a bridge deck, and a clamping structure is arranged at the connection between the bridge deck and the crossbeam; the clamping structure includes a bracket, a limit block, a movable block, a screw and a stop block; the bracket is arranged at the bottom end of the bridge deck, a screw rod penetrates the middle position of the bracket, and the middle position of the screw rod is threadedly connected to the limit block, both sides of the limit block are movably installed with stop blocks, and the top of the screw rod is threadedly connected to the movable block.

[0006] Preferably, the Bailey beam comprises a Bailey plate, a connecting groove, a connecting block, a pin and a fixing frame, the Bailey plate is movably mounted on the top of the bridge frame, and fixing frames are bolted on both sides between the Bailey plates.

[0007] Preferably, a connection groove is provided on one side of the Bailey sheet, a connection block is provided on the other side of the Bailey sheet, and a card structure is formed between the connection block and the connection groove.

[0008] Preferably, a pin is passed through the connection groove and the connection block, and a disassembly and installation structure is formed between the pin and the Bailey plate.

[0009] Preferably, the pin comprises a limiting hole, a limiting ring, a clamping block, a limiting plate and a spring, the limiting hole is arranged at one end of the pin, and the limiting ring is passed through the interior of the limiting hole.

[0010] Preferably, a clamping block is sleeved on one side of the limiting ring, limiting plates are hinged on both ends of one side of the limiting ring, and a spring is fixedly connected between the limiting plate and the limiting ring.

[0011] Preferably, protrusions are provided on both sides of the limit block, a sliding structure is formed between the limit block and the stop block, and the threads on the top and bottom of the outer wall of the screw are opposite.

[0012] Preferably, the movable block comprises a clip, a slider and a slide rail, and the clip is hinged to two sides of the movable block.

[0013] Preferably, both ends of the clip are provided with slide rails, and the top of the bracket inside the slide rail is fixed with a slider, and a sliding structure is formed between the slider and the slide rail.

[0014] The multifunctional assembled steel frame bridge structure provided by the present invention has the following advantages:

[0015] By providing a clamping structure, the bracket is placed at the connection position on the top of the Bailey plate, and the screw is rotated through the opposite thread settings on its outside to control the movable block and the limit block to approach each other. The movable block moves downward to pull the clamping piece inward to squeeze and fix the beam, and the limit block moves upward to push the resistance block to move to both sides to squeeze the two sides of the bracket, thereby increasing the stability of the structure. The clamping piece clamps and fixes the beam while the movable block and the limit block are in contact. Through the top action of the movable block and the limit block, the screw is always subjected to additional tension and friction, which plays a role in preventing loosening. At the same time, the screw can be disassembled by rotating the screw in the opposite direction, thereby realizing the versatility of the assembled steel frame bridge structure, facilitating disassembly and assembly while having an anti-loosening effect, and enhancing the stability and safety of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view three-dimensional structure schematic diagram of the present invention;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention when viewed from above;

[0018] Figure 3 It is a schematic diagram of a local three-dimensional structure of a Bailey beam of the present invention;

[0019] Figure 4 A schematic diagram of a three-dimensional structure of a Bailey beam and a crossbeam connected in the present invention;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the connection state between the cross beam and the bridge deck of the present invention;

[0021] Figure 6 It is a schematic diagram of a three-dimensional structure of the clamping structure of the present invention when viewed from above;

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the clamping structure of the present invention when viewed from above;

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the clip of the present invention in the unfolded state;

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the pin of the present invention in a disassembled state;

[0025] Fig.10 It is a schematic diagram of the three-dimensional structure of the limiting ring of the present invention in a half-section state.

[0026] Explanation of the reference numerals in the figure: 1. Bridge frame; 2. Bailey beam; 21. Bailey plate; 22. Connecting groove; 23. Connecting block; 24. Pin; 241. Limiting hole; 242. Limiting ring; 243. Block; 244. Limiting plate; 245. Spring; 25. Fixed frame; 3. Crossbeam; 4. Bridge deck; 5. Clamping structure; 51. Bracket; 52. Limiting block; 53. Movable block; 531. Clip; 532. Slider; 533. Slide rail; 54. Screw; 55. Abutment block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 10The present invention provides a multifunctional assembled steel frame bridge structure, including a bridge frame 1 and a Bailey beam 2; the top of the bridge frame 1 is movably installed with the Bailey beam 2, and the top of the Bailey beam 2 is movably installed with a cross beam 3, the top of the cross beam 3 is movably installed with a bridge deck 4, and a clamping structure 5 is provided at the connection between the bridge deck 4 and the cross beam 3, the Bailey beam 2 includes a Bailey plate 21, a connecting groove 22, a connecting block 23, a pin 24 and a fixing frame 25, the Bailey plate 21 is movably installed at the top of the bridge frame 1, and the fixing frames 25 are bolted on both sides of the Bailey plate 21, one side of the Bailey plate 21 is provided with a connecting groove 22, and the other side of the Bailey plate 21 is provided with a connecting block 2 3, and a card structure is formed between the connecting block 23 and the connecting groove 22, a pin 24 is penetrated between the connecting groove 22 and the connecting block 23, and a disassembly and installation structure is formed between the pin 24 and the Bailey sheet 21, the pin 24 includes a limiting hole 241, a limiting ring 242, a card block 243, a limiting plate 244 and a spring 245, the limiting hole 241 is set at one end of the pin 24, the limiting hole 241 is penetrated inside the limiting hole 241, one side of the limiting ring 242 is sleeved with a card block 243, both ends of one side of the limiting ring 242 are hinged with a limiting plate 244, and a spring 245 is fixedly connected between the limiting plate 244 and the limiting ring 242;

[0029] Reference Figure 3 , Figure 4 , Fig. 9 and Fig.10 As shown, when the device is used, after the bridge frame 1 is set up, the Bailey sheets 21 are first combined into the Bailey beam 2 and then fixedly installed with the bridge frame 1. First, the two Bailey sheets 21 are fixed to the fixing frame 25 by bolts, so that both sides of the Bailey sheets 21 are fixed with the fixing frame 25 to form a group, and then the connecting block 23 on one side of a group of Bailey sheets 21 is inserted into the connecting groove 22 of the other group of Bailey sheets 21. After the pin 24 passes through the connection, the limiting ring 242 is inserted into the limiting ring 24 at one end of the pin 24. After the hole 241 is penetrated, the block 243 is used to be sleeved on the outside of the limiting ring 242, and is pressed and slid inward. When sliding through the position of the limiting plate 244, the limiting plate 244 loses pressure and is pushed open under the action of the tension of the spring 245, so that the limiting plate 244 plays a limiting role on the block 243. During use, the limiting ring 242 cannot fall off from the pin 24, and the stability is enhanced. A group of Bailey sheets 21 are assembled into a Bailey beam 2, and then fixed and assembled with the bridge frame 1 using bolts;

[0030] The clamping structure 5 includes a bracket 51, a limit block 52, a movable block 53, a screw rod 54 and a stop block 55; the bracket 51 is arranged at the bottom end of the bridge deck 4, a screw rod 54 runs through the middle position of the bracket 51, and the middle position of the screw rod 54 is threadedly connected to the limit block 52, both sides of the limit block 52 are movably installed with a stop block 55, the top of the screw rod 54 is threadedly connected to the movable block 53, both sides of the limit block 52 are provided with a protrusion, a sliding structure is formed between the limit block 52 and the stop block 55, the threads at the top and bottom of the outer wall of the screw rod 54 are opposite, the movable block 53 includes a clip 531, a slider 532 and a slide rail 533, the clip 531 is hinged to both sides of the movable block 53, both ends of the clip 531 are provided with a slide rail 533, and the top of the bracket 51 inside the slide rail 533 is fixed with a slider 532, and a sliding structure is formed between the slider 532 and the slide rail 533;

[0031] Reference Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, when the device is in use, after the Bailey beam 2 is fixed to the bridge frame 1, the bracket 51 is placed at the connection position on the top of the Bailey plate 21, and then the cross beam 3 is placed to its top, and the screw 54 is rotated through the opposite thread setting on its outside to control the movable block 53 and the limit block 52 to approach each other, and the movable block 53 moves downward to drive the slide rail 533 to slide on the outside of the slider 532, so that the clamping piece 531 moves inward to squeeze and fix the cross beam 3, and the limit block 52 moves upward to push the stop block 55 to move to both sides to squeeze the two sides of the bracket 51, thereby increasing the stability of the structure, and the clamping piece 531 clamps and fixes the cross beam 3 while the movable block 53 and the limit block 52 are in contact, and the top action of the movable block 53 and the limit block 52 makes the screw 54 always subject to additional tension and friction, which plays a role in preventing loosening, and at the same time, the screw 54 can be disassembled by rotating the screw 54 in the opposite direction, and then the bridge deck 4 is fixedly assembled between the screw 54 and the cross beam 3 by the same operation, thereby simplifying the operation.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional assembled steel frame bridge structure, comprising a bridge frame (1) and a Bailey beam (2); Features: A Bailey beam (2) is movably mounted on the top of the bridge frame (1), a crossbeam (3) is movably mounted on the top of the Bailey beam (2), a bridge deck (4) is movably mounted on the top of the crossbeam (3), and a clamping structure (5) is provided at the connection between the bridge deck (4) and the crossbeam (3); The clamping structure (5) comprises a bracket (51), a limiting block (52), a movable block (53), a screw rod (54) and a stop block (55); The bracket (51) is arranged at the bottom end of the bridge deck (4), a screw rod (54) passes through the middle position of the bracket (51), and the middle position of the screw rod (54) is threadedly connected to a limit block (52), both sides of the limit block (52) are movably installed with abutment blocks (55), and the top of the screw rod (54) is threadedly connected to a movable block (53).

2. A multifunctional assembled steel frame bridge structure according to claim 1, characterized in that: The Bailey beam (2) comprises a Bailey plate (21), a connection groove (22), a connection block (23), a pin (24) and a fixing frame (25); the Bailey plate (21) is movably mounted on the top of the bridge frame (1); and the fixing frames (25) are bolted on both sides between the Bailey plates (21).

3. The multifunctional assembled steel frame bridge structure according to claim 2, characterized in that: One side of the Bailey sheet (21) is provided with a connection groove (22), and the other side of the Bailey sheet (21) is provided with a connection block (23), and a card structure is formed between the connection block (23) and the connection groove (22).

4. The multifunctional assembled steel frame bridge structure according to claim 3 is characterized in that: A pin (24) is passed through the connection groove (22) and the connection block (23), and a disassembly and installation structure is formed between the pin (24) and the Bailey plate (21).

5. The multifunctional assembled steel frame bridge structure according to claim 4 is characterized in that: The pin (24) comprises a limiting hole (241), a limiting ring (242), a clamping block (243), a limiting plate (244) and a spring (245); the limiting hole (241) is arranged at one end of the pin (24), and the limiting ring (242) is penetrated inside the limiting hole (241).

6. The multifunctional assembled steel frame bridge structure according to claim 5, characterized in that: A clamping block (243) is sleeved on one side of the limiting ring (242), a limiting plate (244) is hingedly connected to both ends of one side of the limiting ring (242), and a spring (245) is fixedly connected between the limiting plate (244) and the limiting ring (242).

7. The multifunctional assembled steel frame bridge structure according to claim 1, characterized in that: Both sides of the limit block (52) are provided with protrusions, a sliding structure is formed between the limit block (52) and the stop block (55), and the threads at the top and bottom of the outer wall of the screw rod (54) are opposite.

8. The multifunctional assembled steel frame bridge structure according to claim 1, characterized in that: The movable block (53) comprises a clamping piece (531), a sliding block (532) and a sliding rail (533); the clamping piece (531) is hinged to two sides of the movable block (53).

9. The multifunctional assembled steel frame bridge structure according to claim 8, characterized in that: Slide rails (533) are provided at both ends of the clamping piece (531), and a slider (532) is fixed to the top of the bracket (51) inside the slide rail (533), and a sliding structure is formed between the slider (532) and the slide rail (533).

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