Fabricated operation platform for lattice beam connection construction

Abstract

The utility model discloses an assembly type operation platform for lattice beam connection construction, which comprises two carrying pole beams and four vertical ladders, and threads are arranged at the upper ends and the lower ends of vertical rods of the four vertical ladders; the two carrying pole beams are used for being installed on the top of the grid beam in a crossing mode, two vertical straight ladder installation holes are formed in the two sides of the grid beam on each carrying pole beam in the length direction of the carrying pole beam respectively, and the bottom of each carrying pole beam is connected with an L-shaped limiting buckle used for buckling the bottom of one side of a top plate of the grid beam. The upper ends of the vertical ladders are installed in the vertical ladder installation holes in a limited mode through vertical ladder installation nuts, the lower ends of the two vertical ladders on the same side are connected with a bottom plate, the bottom plate is provided with four bottom plate installation holes corresponding to the vertical rods of the vertical ladders, and the lower ends of the vertical ladders are installed in the bottom plate installation holes in a limited mode through bottom plate installation nuts. The assembly type working platform is light in weight, convenient to transfer, convenient to disassemble, assemble and build and good in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction work platforms, in particular to an assembled work platform for lattice beam connection construction. Background Art

[0002] In recent years, my country's highway infrastructure construction has developed rapidly, and the number of cross-river bridges has increased. Lattice beams are common structural beams in cross-river bridges. Lattice beams are generally I-beam crossbeams. During the installation of lattice beams, after the adjacent segments are hoisted in place, the top plates, bottom plates and webs of the adjacent segments of the lattice beams need to be welded or bolted to connect the adjacent segments. Since bridges often cross rivers, the welding or bolting of lattice beams requires high-altitude operations. There are two methods for high-altitude construction of traditional bridges. One is to set up scaffolding for construction, and the other is to rent lifting equipment and use the cage of the lifting equipment on the bridge deck for construction. The former method requires a large amount of construction site, has high requirements for the ground, and has low construction efficiency. The latter requires renting a large number of construction platform equipment, which directly affects the construction cost.

[0003] In order to improve work efficiency and reduce construction costs, steel pipes or steel bars, steel ladders and foot pedals are often used to assemble and build construction platforms. However, the assembly and disassembly of the assembled construction platform is cumbersome, and the connections between the components are not tight, and the edge protection is incomplete, which poses a great safety risk. After searching, it was found that there is currently no special platform for lattice beam connection construction. Therefore, in order to improve construction efficiency, reduce construction costs and reduce safety risks, it is necessary to design a special platform for lattice beam connection construction. Summary of the invention

[0004] The utility model aims to provide an assembled work platform for lattice beam connection construction, which is light in weight, convenient to transfer, easy to assemble and disassemble, and has good safety.

[0005] The utility model is realized by the following technical solutions:

[0006] The utility model discloses an assembled work platform for lattice beam connection construction, comprising two shoulder pole beams and four straight ladders, wherein the upper and lower ends of the vertical rods of the four straight ladders are provided with threads; the two shoulder pole beams are used for being installed across the top of the lattice beam, and the two sides of the shoulder pole beams are limited by the shear keys on the top of the lattice beam, and two vertical straight ladder installation holes are respectively provided on the two sides of the lattice beam on each shoulder pole beam along the length direction of the shoulder pole beam, and an L-shaped limit buckle for snapping the bottom of one side of the lattice beam top plate is provided at the bottom of the shoulder pole beam. During installation, the shoulder pole beam is installed first, and after the L-shaped limit buckle is snapped to the bottom of one side of the lattice beam top plate, the straight ladder on the opposite side is installed, so as to avoid the inability to snap the L-shaped limit buckle to the bottom of the lattice beam top plate after the straight ladder on the opposite side is installed. The upper end of the ladder is limitedly installed in the ladder installation hole through the ladder installation nut. After the upper end of the vertical rod of the ladder passes through the ladder installation hole, the ladder installation nut is threadedly connected with the upper end of the vertical rod of the ladder. The lower ends of the two ladders on the same side are connected and installed with a bottom plate. The bottom plate is provided with four bottom plate installation holes corresponding to the vertical rods of the ladder. The lower end of the ladder is limitedly installed in the bottom plate installation hole through the bottom plate installation nut. After the lower end of the vertical rod of the ladder passes through the bottom plate installation hole, the bottom plate installation nut is threadedly connected with the lower end of the vertical rod of the ladder.

[0007] Further preferably, a protective net is installed on the side away from the lattice beam between the two vertical ladders on the same side. A plurality of guardrails can also be arranged at intervals between the vertical bars of the two vertical ladders on the side, and the two ends of the guardrails are detachably connected to the vertical bars of the vertical ladders through clips.

[0008] Further preferably, a panel frame is placed around the bottom plate, and the panel comprises two long panels and two short panels, which are alternately connected and combined to form a square panel frame, and the square panel frame surrounds the lower ends of the two straight ladders on the same side. The bottom plate is used for workers to stand and place tools, and the arrangement of the panel can prevent the tools or parts placed on the bottom plate from slipping off.

[0009] Further preferred: both end surfaces of the short enclosure are fixedly provided with side panel connecting bolts, and corresponding enclosure mounting holes are provided on both sides of the long enclosure; or both end surfaces of the long enclosure are fixedly provided with side panel connecting bolts, and corresponding enclosure mounting holes are provided on both sides of the short enclosure; the side panel connecting bolts pass through the corresponding enclosure mounting holes and are locked and connected by side panel connecting nuts.

[0010] The main body of the assembled work platform for the lattice beam connection construction is detachable, and the main body adopts the connection form of bolts and nuts, which is easy to disassemble and has a stable connection; the bottom connection of the shoulder pole beam is provided with an L-shaped limit buckle for snapping into the bottom of one side of the lattice beam top plate. The platform can be limited in the transverse direction of the lattice beam through the L-shaped limit buckle and the straight ladder on the opposite side, and it is not easy to shake. The straight ladder is a part of the platform body. The staff uses the straight ladder to climb into or leave the platform. When disassembled, the straight ladder can also be used for climbing in other workstations. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic diagram of the connection structure of the assembled work platform for the lattice beam connection construction in Example 1;

[0012] Figure 2 yes Figure 1 Schematic diagram of the left side;

[0013] Figure 3 is a schematic diagram of the connection structure of the assembled work platform for the lattice beam connection construction in Example 2;

[0014] Figure 4 yes Figure 2 Schematic diagram of the left side;

[0015] Figure 5 It is a schematic diagram of the structure of the base plate;

[0016] Figure 6 It is a schematic diagram of the structure of the long coaming;

[0017] Figure 7 It is a schematic diagram of the structure of the short coaming;

[0018] Figure 8 It is a structural diagram of a shoulder pole beam;

[0019] The names corresponding to the numbers in the figure are:

[0020] 1. Lattice beam; 2. Shoulder pole beam; 3. Shear key; 4. L-shaped limit buckle; 5. Ladder mounting nut; 6. Ladder; 7. Protective net; 8. Base plate; 9. Base plate mounting nut; 10. Side plate connecting bolts; 11. Side plate connecting nuts; 12. Long enclosure; 13. Short enclosure; 14. Base plate mounting hole; 15. Enclosure mounting hole; 16. Ladder mounting hole. DETAILED DESCRIPTION

[0021] In order to describe the present technology more clearly, the present technology is further described in detail below with reference to the accompanying drawings and embodiments. Example 1

[0022] A prefabricated work platform for lattice beam connection construction, comprising two shoulder pole beams 2 and four straight ladders 6, wherein the vertical rods of the four straight ladders 6 are provided with threads at both ends; the two shoulder pole beams 2 are used to be installed across the top of the lattice beam 1, and the two sides of the shoulder pole beams 2 are limited by the shear keys 3 on the top of the lattice beam 1, and the two sides of the lattice beam 1 on each shoulder pole beam 2 are respectively provided with two vertical straight ladder installation holes 16 along the length direction of the shoulder pole beam 2, and the bottom of the shoulder pole beam 2 is connected with a lattice beam for buckling 1, the upper end of the ladder 6 is limitedly installed in the ladder installation hole 16 through the ladder installation nut 5. After the upper end of the vertical rod of the ladder 6 passes through the ladder installation hole 16, the ladder installation nut 5 is threadedly connected with the upper end of the vertical rod of the ladder 6. The lower ends of the two ladders 6 on the same side are connected and installed with the bottom plate 8. The bottom plate 8 is provided with four bottom plate installation holes 14 corresponding to the vertical rods of the ladder 6. The lower end of the ladder 6 is limitedly installed in the bottom plate installation hole 14 through the bottom plate installation nut 9. After the lower end of the vertical rod of the ladder 6 passes through the bottom plate installation hole 14, the bottom plate installation nut 9 is threadedly connected with the lower end of the vertical rod of the ladder 6.

[0023] A protective net 7 is installed on the side away from the lattice beam 1 between the two straight ladders 6 on the same side. Example 2

[0024] A prefabricated work platform for lattice beam connection construction, comprising two shoulder pole beams 2 and four straight ladders 6, wherein the vertical rods of the four straight ladders 6 are provided with threads at both ends; the two shoulder pole beams 2 are used to be installed across the top of the lattice beam 1, and the two sides of the shoulder pole beams 2 are limited by the shear keys 3 on the top of the lattice beam 1, and the two sides of the lattice beam 1 on each shoulder pole beam 2 are respectively provided with two vertical straight ladder installation holes 16 along the length direction of the shoulder pole beam 2, and the bottom of the shoulder pole beam 2 is connected with a lattice beam for buckling 1, the upper end of the ladder 6 is limitedly installed in the ladder installation hole 16 through the ladder installation nut 5. After the upper end of the vertical rod of the ladder 6 passes through the ladder installation hole 16, the ladder installation nut 5 is threadedly connected with the upper end of the vertical rod of the ladder 6. The lower ends of the two ladders 6 on the same side are connected and installed with the bottom plate 8. The bottom plate 8 is provided with four bottom plate installation holes 14 corresponding to the vertical rods of the ladder 6. The lower end of the ladder 6 is limitedly installed in the bottom plate installation hole 14 through the bottom plate installation nut 9. After the lower end of the vertical rod of the ladder 6 passes through the bottom plate installation hole 14, the bottom plate installation nut 9 is threadedly connected with the lower end of the vertical rod of the ladder 6.

[0025] A protective net 7 is installed on the side away from the lattice beam 1 between the two straight ladders 6 on the same side.

[0026] A panel frame is placed around the bottom plate 8, and the panel includes two long panels 12 and two short panels 13. The two long panels 12 and the two short panels 13 are alternately connected and combined to form a square panel frame, which surrounds the lower ends of the two straight ladders 6 on the same side.

[0027] Both end surfaces of the short enclosure 13 are fixedly provided with side panel connecting bolts 10, and corresponding enclosure mounting holes 15 are provided on both sides of the long enclosure 12; or both end surfaces of the long enclosure 12 are fixedly provided with side panel connecting bolts 10, and corresponding enclosure mounting holes 15 are provided on both sides of the short enclosure 13; the side panel connecting bolts 10 pass through the corresponding enclosure mounting holes 15 and are locked and connected by the side panel connecting nuts 11.

[0028] The above description is not a limitation of the present application, and the present application is not limited to the above examples. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present application should fall within the scope of protection of the present application.

Claims

1. An assembled work platform for lattice beam connection construction, comprising two shoulder pole beams (2), Features: It also comprises four straight ladders (6), wherein the upper and lower ends of the vertical rods of the four straight ladders (6) are provided with threads; the two shoulder pole beams (2) are used to be installed across the top of the lattice beam (1); two vertical straight ladder mounting holes (16) are respectively provided on both sides of the lattice beam (1) on each shoulder pole beam (2) along the length direction of the shoulder pole beam (2); the bottom of the shoulder pole beam (2) is connected to an L-shaped limit buckle (4) for snapping the bottom of one side of the top plate of the lattice beam (1); the upper end of the straight ladder (6) is limitedly installed in the straight ladder mounting hole (16) through a straight ladder mounting nut (5); the lower ends of the two straight ladders (6) on the same side are connected to a bottom plate (8); the bottom plate (8) is provided with four bottom plate mounting holes (14) corresponding to the vertical rods of the straight ladder (6); the lower end of the straight ladder (6) is limitedly installed in the bottom plate mounting hole (14) through a bottom plate mounting nut (9).

2. The assembled work platform for lattice beam connection construction according to claim 1, Features: A protective net (7) is installed between the two straight ladders (6) on the same side and on the side away from the lattice beam (1).

3. The assembled work platform for lattice beam connection construction according to claim 1, Features: A panel frame is placed around the bottom plate (8), wherein the panel comprises two long panels (12) and two short panels (13). The two long panels (12) and the two short panels (13) are alternately connected and combined to form a square panel frame, and the square panel frame surrounds the lower ends of the two straight ladders (6) on the same side.

4. The assembled work platform for lattice beam connection construction according to claim 3, Features: The two end surfaces of the short enclosure (13) are fixedly provided with side panel connecting bolts (10), and the two sides of the long enclosure (12) are provided with corresponding enclosure mounting holes (15); or the two end surfaces of the long enclosure (12) are fixedly provided with side panel connecting bolts (10), and the two sides of the short enclosure (13) are provided with corresponding enclosure mounting holes (15); the side panel connecting bolts (10) pass through the corresponding enclosure mounting holes (15) and are locked and connected by the side panel connecting nuts (11).

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