Steel box girder edge welding slag fire receiving hopper

Abstract

The utility model belongs to the technical field of steel structure construction, and particularly relates to a steel box girder edge welding slag fire receiving bucket which comprises a fire receiving bucket and a trolley, a vertical supporting rod is fixed on the trolley upwards, a horizontal long screw rod is connected to the vertical supporting rod, one end of the horizontal long screw rod is connected with a vertical long screw rod, and the fire receiving bucket is fixed at the lower end of the vertical long screw rod. And the other end of the horizontal long screw rod is connected with the counterweight basket. The fire welding bucket can move along with the welding position, a special fixing component is not needed, the flexibility is high, the unsafe factor that the fire welding bucket is manually moved in the welding process is avoided, and the construction efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of steel structure construction technology, and in particular relates to a welding slag catcher for steel box girders. Background Technology

[0002] As the core load-bearing structure of long-span bridges, steel box girders are typically welded from high-strength steel plates. Their construction often takes place at heights or near edges, resulting in complex welding environments and extremely high risks of slag and spark spatter. The welding points are often far from the ground or the construction area below, making traditional protective measures inadequate. Slag catchers for steel box girders meet the dual rigid requirements of safety and environmental protection in steel structure engineering. Their technological evolution has shifted from passive protection to active control, and through continuous iteration of materials and structures, they have become indispensable specialized technical equipment for modern steel bridge welding construction. However, due to the long welds and numerous nodes in steel box girders, continuous welding leads to a large amount of slag and a wide spatter range, increasing the demand for operational mobility during welding. Existing slag catchers for steel box girders are generally fixed, secured by bolts, clamps, and hooks, and cannot be moved flexibly with changes in welding position, requiring manual relocation. Given the difficulty and danger of moving these catchers at heights, a slag catcher device that can move with the welding position is needed. Summary of the Invention

[0003] The problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a welding slag collection hopper for steel box girders.

[0004] This invention is achieved through the following technical solution:

[0005] A slag catcher for steel box girder edge welding includes a catching hopper and a trolley. The trolley has casters at its bottom and a vertical support rod fixed upwards on it. The vertical support rod has a horizontal circular hole penetrating it. A horizontal long screw has a transverse circular hole corresponding to the horizontal circular hole on its side near the trolley. A bolt passes through both the horizontal and transverse circular holes, and is perpendicular to both the vertical support rod and the horizontal long screw. A vertical circular hole penetrating the horizontal long screw is located at its end away from the trolley. A vertical long screw passes downwards through the vertical circular hole, and the catching hopper is fixed to the lower end of the vertical long screw. The other end of the horizontal long screw is connected to a counterweight basket. Nuts are provided on both sides of the bolt and on both sides of the vertical long screw, securing the horizontal long screw to the vertical support rod and the vertical long screw together.

[0006] Preferably, the trolley is a wheeled trolley.

[0007] Preferably, the caster is a swivel caster with a brake function.

[0008] Preferably, the casters are electric rollers.

[0009] Preferably, a cross-shaped fastener is provided at the junction of the horizontal long screw and the vertical support rod or the vertical long screw.

[0010] The welding hopper of this invention can move with the welding position without the need for special fixing components, offering high flexibility and avoiding the safety risks of manually moving the welding hopper during welding, thus improving construction efficiency. Furthermore, the welding hopper of this invention can flexibly adjust its counterweight as the weight of the welding slag increases, increasing overall stability and preventing displacement when subjected to external impacts or vibrations. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the assembled structure in this embodiment;

[0012] Figure 2 This is a partial three-dimensional structural diagram of the horizontally elongated screw in this embodiment, with the screw in a horizontal position.

[0013] Figure 3 This is a partial side view of the structure in which the horizontal long screw is in a horizontal state in this embodiment;

[0014] Figure 4 This is a partial structural diagram of the horizontal long screw in the tilted-up state in this embodiment;

[0015] Figure 5 This is a schematic diagram of the disassembled structure of the horizontal long screw and the vertical support rod in this embodiment.

[0016] In the diagram, 1 is the fire bucket, 2 is the trolley, 3 is the caster, 4 is the vertical support rod, 5 is the horizontal long screw, 6 is the vertical long screw, 7 is the horizontal round hole, 8 is the vertical round hole, 9 is the counterweight basket, 10 is the nut, 11 is the horizontal round hole, and 12 is the bolt. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0018] This embodiment includes a trolley 2, which is placed on top of a steel box girder. The bottom of the trolley 2 is equipped with casters 3, which are omnidirectional wheels with braking function. The trolley 2 can be braked or pushed manually by foot or by electric rollers. The trolley 2 can be braked or moved directly by the controller. In this embodiment, the trolley 2 is preferably a small wheeled trolley commonly found on construction sites.

[0019] A vertical support rod 4 is fixed upward on the trolley 2. A horizontal circular hole 7 is provided on the vertical support rod 4, which passes horizontally through the vertical support rod 4. A horizontal long screw rod 5 is provided next to the vertical support rod 4. A horizontal long screw rod 5 has a horizontal circular hole 11 corresponding to the horizontal circular hole 7 on the side of the horizontal long screw rod 5 closest to the trolley 2. A bolt 12 passes through the horizontal circular hole 7 and the horizontal circular hole 11 to connect the vertical support rod 4 and the horizontal long screw rod 5 together. The bolt 12 is perpendicular to both the vertical support rod 4 and the horizontal long screw rod 5. The horizontal long screw rod 5 can rotate around the bolt 12. Nuts 12 are provided on both sides of the bolt 12. By tightening the nuts 12 on both sides, the vertical support rod 4 and the horizontal long screw rod 5 are fastened together.

[0020] A vertical circular hole 8 is provided at the end of the horizontal long screw 5 away from the trolley 2. The vertical circular hole 8 extends downward through the horizontal long screw 5, and a vertical long screw 6 extends downward through the vertical circular hole 8. Nuts 10 are provided on both sides of the vertical long screw 6. By tightening the nuts 10 on both sides, the horizontal long screw 5 and the vertical long screw 6 can be fixed together. A welding slag receiving bucket 1 is fixed at the lower end of the vertical long screw 6. The welding slag receiving bucket 1 can be a common welding slag receiving bucket 1.

[0021] The end of the horizontal long screw 5 near the trolley is connected to the counterweight basket 9, and the counterweight is placed in the counterweight basket 9. The counterweight can be gradually increased as the welding slag in the fire-receiving hopper 1 increases.

[0022] To ensure a more stable connection between the horizontal long screw 5 and the vertical support rod 4 and the vertical long screw 6, it is preferable to provide a cross coupler at the junction of the horizontal long screw 5 and the vertical support rod 4 or the vertical long screw 6. The cross coupler is a commonly used coupler for erecting scaffolding, and the connection at the junction is made more stable by using the cross coupler.

[0023] During construction, bolt 12 is passed through the horizontal circular hole 7 of the vertical support rod 4 and the transverse circular hole 11 of the horizontal long screw rod 5. Then, the horizontal long screw rod 5 is rotated upward around bolt 12, causing it to tilt upward to a certain height. Next, the vertical long screw rod 6, connected to the fire-receiving hopper 1, is passed upward through the vertical circular hole 8 of the horizontal long screw rod 5. The height of the vertical long screw rod 6 is adjusted to adjust the distance between the fire-receiving hopper 1 and the steel box girder. After adjustment, the nuts 10 on both sides of the vertical long screw rod 6 are tightened to fix the vertical long screw rod 6 and the horizontal long screw rod 5 together. To make the structure more stable, cross couplers are used to fix it at the junction of the vertical long screw rod 6 and the horizontal long screw rod 5. Then, rotate the horizontal long screw 5 downwards around the bolt 12, slowly placing the fire-receiving bucket 1 below the steel box girder. When the horizontal long screw 5 is horizontal, the fire-receiving bucket 1 below the steel box girder is also horizontal. At this point, tighten the nuts 10 on both sides of the bolt 12 to fix the vertical support rod 4 and the horizontal long screw 5 together. Similarly, to ensure a more stable overall structure, cross-shaped fasteners can be used to fix the joint between the horizontal long screw 5 and the vertical support rod 4. Finally, fix the counterweight basket 9 at the end of the horizontal long screw 5. Place counterweights in the counterweight basket 9 as needed. During construction, the weight of the counterweights can be gradually increased as the welding slag in the fire-receiving bucket 1 increases. When one section is welded, move the trolley 2 to the next welding position, and the fire-receiving bucket 1 will also move with the trolley 2, achieving flexible movement of the fire-receiving bucket 1 without the need for disassembly and reassembly.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; those skilled in the art should understand that modifications can still be made to the technical solutions described in the above embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A slag collection hopper for weld slag at the edge of a steel box girder, comprising a collection hopper (1), characterized in that: It also includes a trolley (2), with casters (3) at the bottom of the trolley (2), and a vertical support rod (4) fixed upwards on the trolley (2). The vertical support rod (4) has a horizontal circular hole (7) that passes through it. A horizontal long screw (5) has a horizontal circular hole (11) on the side near the trolley (2) that corresponds to the horizontal circular hole (7). A bolt (12) passes through the horizontal circular hole (7) and the horizontal circular hole (11). The bolt (12) is perpendicular to both the vertical support rod (4) and the horizontal long screw (5). 5) A vertical circular hole (8) is provided at the end away from the trolley (2) through which the horizontal long screw (5) passes. A vertical long screw (6) passes downward through the vertical circular hole (8). The lower end of the vertical long screw (6) is fixed to the fire bucket (1). The other end of the horizontal long screw (5) is connected to the counterweight basket (9). Nuts (10) are provided on both sides of the bolt (12) and on both sides of the vertical long screw (6) of the vertical circular hole (8). The horizontal long screw (5) is fixed together with the vertical support rod (4) and the vertical long screw (6) by the nuts (10).

2. The slag collection hopper for steel box girder edge welding as described in claim 1, characterized in that: The trolley (2) is a wheeled trolley.

3. The slag collection hopper for steel box girder edge welding as described in claim 1, characterized in that: The caster (3) is a universal wheel with a brake function.

4. The slag collection hopper for steel box girder edge welding as described in claim 1, characterized in that: The caster (3) is an electric roller.

5. The slag collection hopper for steel box girder edge welding as described in claim 1, characterized in that: A cross fastener is provided at the junction of the horizontal long screw (5) and the vertical support rod (4) or the vertical long screw (6).

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