Welding slag collecting device for welding construction of wet joint of overpass precast beam

Abstract

A welding slag collecting device for wet joint welding construction of an overpass precast beam comprises a walking device arranged on the overpass precast beam, the walking device stretches across two sections of the overpass precast beam, a connecting rod is arranged in the middle of the walking device, and the connecting rod is connected with a welding slag collecting groove formed in the bottom of the overpass beam; welding slag generated in the welding process can be effectively prevented from falling off, fireproof safety of facilities such as lower roads, village dwellings, pipeline lines and gas stations is ensured, safety risks caused by construction to the surrounding environment and facilities are reduced, and the safety and reliability of overpass precast beam wet joint welding construction are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of highway construction equipment, and in particular relates to a welding slag collecting device used for wet joint welding construction of upper-span prefabricated beams. Background Art

[0002] Most existing highway bridge projects use prefabricated beams when crossing existing roads, buildings, rivers, village dwellings, pipelines and gas stations. After the prefabricated beams are erected, the wet joint steel bars need to be welded. When welding, a large amount of welding slag will be generated. Due to the high construction position of the prefabricated beams, these welding slags are very easy to fall under the action of gravity. There are often various important and sensitive facilities distributed below, such as normal roads. Once welding slag falls, it may burn pedestrians, damage the paint of passing vehicles, and even cause road traffic safety accidents; there are many village dwellings, and the falling welding slag may cause fires on the roofs and courtyards of the dwellings, endangering the lives and property of residents; there are also complex pipelines. If welding slag falls on the pipeline, it may cause local heat deformation and damage to the pipeline, affecting its normal transportation function. If it is a gas pipeline, there is a great explosion hazard; in addition, for places such as gas stations that have extremely high fire protection requirements, even a small amount of welding slag falling may cause serious fires or even explosions, causing irreparable losses. In most cases, the use of protective sheds at the bottom for protection not only affects the construction progress but also increases the construction cost, safety costs and the probability of safety accidents. At present, in relevant construction scenarios, there is a lack of effective technical means specifically for the wet joint welding construction of upper prefabricated beams and to effectively prevent the falling of welding slag from causing harm to the numerous facilities below, which makes this type of construction have a greater safety risk. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a welding slag collection device for the wet joint welding construction of upper prefabricated beams that can effectively prevent the welding slag generated during the welding process from falling, ensure the fire safety of the roads, village houses, pipeline lines, gas stations and other facilities below, reduce the safety risks brought by the construction to the surrounding environment and facilities, and improve the safety and reliability of the wet joint welding construction of the upper prefabricated beams.

[0004] The technical solution adopted to solve the above technical problems is: a welding slag collection device for wet joint welding construction of upper span prefabricated beams, including a walking device arranged on the upper span prefabricated beam, the walking device is arranged across two sections of the upper span prefabricated beams, a connecting rod is arranged in the middle of the walking device, and the connecting rod is connected to the welding slag collection trough arranged at the bottom of the upper span beam.

[0005] The middle part of the walking device of the present invention is provided with a sleeve, a latch hole is provided on the sleeve, and a connecting rod is arranged in the sleeve and fixed by a latch inserted into the latch hole.

[0006] The bottom of the connecting rod of the present invention is connected with the welding slag collecting tank through a hinged part.

[0007] The cross-sectional shape of the welding slag collecting trough of the present invention is an inverted isosceles trapezoid.

[0008] The walking device of the present invention is a flatbed trolley with four groups of universal wheels with brakes arranged at the bottom.

[0009] The walking device of the present invention is provided with a cable collecting winch and a storage platform.

[0010] The connecting rod of the present invention is a telescopic structure.

[0011] Since the present invention adopts a walking device arranged on the upper prefabricated beam, the walking device is connected to the welding slag collecting trough through a connecting rod, and the welding slag collecting trough moves with the walking device, which can effectively prevent the welding slag generated in the welding process from falling, thereby ensuring the fire safety of the roads, village houses, pipelines, gas stations and other facilities below, reducing the safety risks brought by the construction to the surrounding environment and facilities, and improving the safety and reliability of the wet joint welding construction of the upper prefabricated beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0013] Figure 2 yes Figure 1 Top view of the .

[0014] In the figure: 1. walking device; 2. pin hole; 3. casing; 4. connecting rod; 5. upper prefabricated beam; 6. welding slag collection trough; 7. hinge; 8. cable collection winch. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below with reference to the accompanying drawings and embodiments, but the present invention is not limited to these embodiments.

[0016] Example 1

[0017] exist Figure 1 , 2The present invention relates to a welding slag collection device for wet joint welding construction of upper-span prefabricated beams, comprising a walking device 1 arranged on the upper-span prefabricated beam 5, the walking device 1 being arranged across two sections of the upper-span prefabricated beams 5, and being arranged as a self-propelled walking device in consideration of the movement of the working surface during welding operation, or being converted into a self-propelled walking device according to the engineering quantity. In the present embodiment, the walking device 1 is a flatbed trolley with four sets of universal wheels with brakes at the bottom, which can effectively reduce the labor input, and a cable collection winch 8 and a storage platform are arranged on the flatbed trolley. According to the on-site conditions, electric welders, welding materials, tools, etc. are collected and placed on the storage platform, and moved with the welding construction work surface. At the same time, a cable collection winch 8 can be arranged on the platform to organize the on-site cables and improve the level of safe and civilized construction. A connecting rod 4 is provided in the middle of the walking device 5, and the connecting rod 4 is connected to the welding slag collection trough 6 provided at the bottom of the upper span beam. Specifically, for the convenience of operation, a sleeve 3 is provided in the middle of the walking device 1, and a pin hole 2 is provided on the sleeve 3. The connecting rod 4 is provided in the sleeve 3 and fixed by a pin inserted into the pin hole 2. The connecting rod 4 is a telescopic structure, and the position of the welding slag collection trough 6 is adjusted according to the thickness of the upper span prefabricated beam 5. The bottom of the connecting rod 4 is connected to the welding slag collection trough 6 through a hinge 7, and the connecting rod 4 can rotate in the front and rear directions around the hinge 7. This design enables the welding slag collection trough 6 to be quickly and conveniently installed under the wet joint of the upper span prefabricated beam 5 without causing too much interference to the welding construction itself. The cross-sectional shape of the welding slag collection trough 6 is an inverted isosceles trapezoid. In practice, the frame of the welding slag collection trough 6 is composed of a plurality of metal rods spliced ​​together, and its shape and size are determined according to the actual contour of the wet joint of the upper span prefabricated beam to ensure that it can fully cover the bottom of the welding operation area. A hinge 7 is provided at the center of the bottom of the frame to keep the slag collecting tank 6 balanced in a natural state. To ensure that the protection effect will not be affected by shaking during the construction process, the slag collecting tank 6 can be provided with a slag discharge port according to the situation, which is convenient for the centralized treatment of the slag. Regular cleaning can maintain the good performance of the protective device and reduce the maintenance cost after construction. Fireproof materials are installed around the frame. The fireproof materials are made of high temperature resistant, non-flammable and tough materials, and have the characteristics of being light, easy to bend, and high temperature resistant, such as special fiberboard or thin iron sheet.

Claims

1. A welding slag collection device for wet joint welding construction of upper span prefabricated beams, characterized in that: The invention comprises a walking device (1) arranged on an upper prefabricated beam (5), the walking device (1) being arranged across two sections of the upper prefabricated beam (5), a connecting rod (4) being arranged in the middle of the walking device (5), and the connecting rod (4) being connected to a welding slag collecting trough (6) arranged at the bottom of the upper prefabricated beam.

2. The welding slag collection device for wet joint welding construction of upper span prefabricated beams according to claim 1 is characterized in that: A sleeve (3) is arranged in the middle of the walking device (1), a latch hole (2) is arranged on the sleeve (3), and a connecting rod (4) is arranged in the sleeve (3) and fixed by a latch inserted into the latch hole (2).

3. The welding slag collection device for wet joint welding construction of upper span prefabricated beams according to claim 1 is characterized in that: The bottom of the connecting rod (4) is connected to the welding slag collecting trough (6) via a hinge (7).

4. The welding slag collection device for wet joint welding construction of upper span prefabricated beams according to claim 1 is characterized in that: The cross-sectional shape of the welding slag collecting trough (6) is an inverted isosceles trapezoid.

5. The welding slag collection device for wet joint welding construction of upper span prefabricated beams according to claim 1 is characterized in that: The walking device (1) is a flatbed trolley with four sets of universal wheels with brakes arranged at the bottom.

6. The welding slag collection device for wet joint welding construction of upper span prefabricated beams according to claim 1 is characterized in that: The walking device (1) is provided with a cable collecting winch (8) and a storage platform.

7. The welding slag collection device for wet joint welding construction of upper span prefabricated beams according to claim 1 is characterized in that: The connecting rod (4) is a telescopic structure.

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