Simple auxiliary support for flange welding

Abstract

The utility model belongs to the technical field of welding auxiliary tools, and provides a flange welding simple auxiliary support which comprises a bolt (1), and a steel wire (2) is vertically arranged on a screw rod (6) close to the head of the bolt (1). A nut (3) is arranged on the screw rod (6), angle steel (4) is arranged between the steel wire (2) and the nut (3), and the angle steel (4) is fixedly connected with the nut (3); and the angle steel (4) is provided with a screw hole (5). Two webs of the angle steel (4) are equal in width, and a screw hole (5) is formed in the center of an included angle of the angle steel (4); an opening of the angle steel (4) is upward. The head of the bolt (1) is attached to the inner bottom face of the pipeline opening (7), the two edges of the angle steel (4) are attached to the inner top face of the pipeline opening (7) and extend out of the pipeline opening (7), and an inner hole of the flange (8) is clamped on the two edges. According to the pipeline welding device, one worker can independently complete pipeline welding work, labor force is saved, construction cost is reduced, and production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding auxiliary tooling, in particular to a simple auxiliary bracket for flange welding. Background Art

[0002] In the construction of the metallurgical industry, a large number of pipeline flange welding will be encountered on site. At present, the usual construction method is that one person holds the flange and aligns it with the pipe mouth, and the other person uses a welding machine to spot weld the flange and then weld the flange. This construction process requires two workers to cooperate in the construction. During welding, one of them needs to hold the flange to ensure the level of the flange. This operation is laborious and has low work efficiency.

[0003] CN211136118U discloses a flange welding auxiliary bracket, whose supporting mechanism includes a clamping block, a slider, a slide, a plug rod, a box, a top block and a spring. The bottom end of the left clamping block is fixedly connected with a slider, which is slidably engaged with the slide groove. The slide groove is provided at the top left side of the bottom plate. The left side outer wall of the plug rod is fixedly connected with the plug rod. The left side outer wall of the plug rod passes through the middle right side inner wall of the box. The left side outer wall of the plug rod is in clearance with the middle right side inner wall of the box. The bottom end of the box is fixedly connected to the top left side of the bottom plate. The left side of the plug rod is fixedly connected with a top block. The left end of the top block fits with the right end of the spring. The left end of the spring fits with the left end inner wall of the box. The supporting mechanism structure of the supporting flange is relatively complex. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a simple auxiliary bracket for flange welding, which can enable workers to independently complete pipeline welding work, save labor, reduce construction costs and improve production efficiency.

[0005] In order to solve the above technical problems, the utility model provides a simple auxiliary bracket for flange welding, including a bolt, a steel wire fixedly arranged on the screw rod near the bolt head, and the steel wire is perpendicular to the screw rod. A nut is arranged on the screw rod, and an angle steel is arranged between the steel wire and the nut, and the angle steel is fixedly connected to the nut; the widths of the two webs of the angle steel are equal, and a screw hole is provided in the center of the angle of the angle steel; the opening of the angle steel faces upward. The head of the bolt fits with the inner bottom surface of the pipe opening, the two edges of the angle steel fit with the inner top surface of the pipe opening, the two edges extend out of the pipe opening, and the inner hole of the flange is stuck on the two edges.

[0006] By adopting the above technical solution, the bolt head is pressed against the lower part of the pipe opening, the two top edges of the angle steel are pressed against the upper part of the pipe opening, the two top edges extend out of the pipe opening, the flange is placed on the extended angle steel, and the inner hole of the flange is stuck on the two top edges. The flange can be welded, and one worker can complete the pipeline welding work independently, saving labor, reducing construction costs, and greatly improving production efficiency.

[0007] Preferably, the nut is installed at the top of the angle of the angle steel, at the edge of the screw hole.

[0008] Preferably, the diameter of the screw hole is larger than the screw diameter and smaller than the outer diameter of the nut.

[0009] By adopting the above technical solution, a hole is opened at the angle of the angle steel, and the nut is located at the hole, which makes it easy for the screw rod to pass through the angle steel and be screwed to the nut, thereby driving the angle steel to rise and fall along with the thread.

[0010] Preferably, the included angles of the screw rod and the two webs of the angle steel are the same.

[0011] By adopting the above technical solution, the two webs are symmetrically distributed on both sides of the screw, giving the flange a relatively balanced and stable supporting force, further improving the welding efficiency.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The bolt head of the utility model is pressed against the lower part of the pipe opening, the two top edges of the angle steel are pressed against the upper part of the pipe opening, the two top edges extend out of the pipe opening, the flange is placed on the extended angle steel, the inner hole of the flange is clamped on the two top edges, and the flange can be welded. One worker can complete the pipeline welding work independently, saving labor, reducing construction costs, and greatly improving production efficiency.

[0014] 2. The utility model adopts standard bolts, nuts, angle steel and other general materials for simple combination to weld and support the flange. The material cost is low, it can be made anywhere, the structure is relatively simple, and the bracket is easy to process.

[0015] 3. The utility model opens a hole at the angle of the angle steel, and the nut is located at the hole, which is convenient for the screw rod to pass through the angle steel and be screwed with the nut, driving the angle steel to rise and fall along with the thread. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the angle steel structure of the utility model.

[0018] Figure 3 This is a schematic diagram of the dissection of the utility model stent at the pipe opening.

[0019] Figure 4 This is the front view of the bracket of the utility model at the pipe opening.

[0020] Figure 5 It is a schematic diagram of the bracket of the utility model at the opening of the pipeline with the smallest diameter.

[0021] Figure 6 It is a schematic diagram of the support of the utility model at the opening of the pipeline with the largest diameter.

[0022] Figure number: 1. Bolt, 2. Steel wire, 3. Nut, 4. Angle steel, 5. Screw hole, 6. Screw, 7. Pipe opening, 8. Flange. DETAILED DESCRIPTION

[0023] like Figure 1 As shown, a simple auxiliary bracket for flange welding includes a bolt 1, a steel wire 2 is fixedly arranged on a screw rod 6 near the head of the bolt 1, a nut 3 is arranged on the screw rod 6, an angle steel 4 is arranged between the steel wire 2 and the nut 3, and the angle steel 4 is fixedly connected to the nut 3. The widths of the two webs of the angle steel 4 are equal, and a screw hole 5 is provided in the center of the angle of the angle steel 4; the opening of the angle steel 4 faces upward. The steel wire 2 is perpendicular to the screw rod 6. The head of the bolt 1 fits with the inner bottom surface of the pipe opening 7, the two edges of the angle steel 4 fit with the inner top surface of the pipe opening 7, the two edges extend out of the pipe opening 7, and the inner hole of the flange 8 is clamped on the two edges. The nut 3 is installed at the inner top of the angle of the angle steel 4 and welded to the angle steel 4. The outer periphery of the nut 3 is located at the edge of the screw hole 5. The diameter of the screw hole 5 is larger than the diameter of the screw rod 6 and smaller than the outer diameter of the nut 3, so that the screw rod 6 can pass through the angle steel 4 and be screwed to the nut 3, driving the angle steel 4 to rise and fall with the thread. The angles between the two webs of the screw 6 and the angle steel 4 are the same, and the two webs are symmetrically distributed on both sides of the screw 6, giving the flange a relatively balanced and stable supporting force, further improving the welding efficiency. In the present application, the bolt 1 is rotated, and the head of the bolt 1 is pressed against the lower part of the pipe opening 7. The nut 3 rises with the rotation of the screw 6, and the nut 3 rises with the angle steel 4. The two top edges of the angle steel 4 are pressed against the upper part of the pipe opening 7, and the top edges extend out of the pipe opening 7. The flange 8 is placed on the extended angle steel 4, and the inner hole of the flange 8 is stuck on the two top edges. Then, the flange 8 can be welded. One worker can complete the pipeline welding work independently, saving labor, reducing construction costs, and greatly improving production efficiency. The flange 8 can be welded and supported by a simple combination of standard parts such as bolts 1, nuts 3, and angle steels 4. The material cost is low, it can be made anywhere, the structure is relatively simple, and the bracket is easy to process.

[0024] like Figure 2 As shown, a hole is opened on the angle steel 4 to ensure that the screw 6 of the bolt 1 can pass through. The bolt 1 is a standard hexagonal bolt, and a steel wire 2 is welded at the bottom. The two are vertical. When the bolt 1 is turned, the steel wire 2 is used as a turning handle. When the steel wire 2 is horizontal, it can be used to determine whether the bolt 1 is vertical.

[0025] like Figure 3 , 4As shown, when working, place the head of the bolt 1 vertically downward and press it against the lower part of the pipe opening 7. Turn the hexagonal bolt, and the nut 3 and the angle steel 4 will rise or fall due to the rotation of the hexagonal bolt, until the two edges on the angle steel 4 press against the upper part of the pipe opening 7. At this time, the flange 8 to be welded can be placed on it, and the inner hole of the flange 8 is stuck on the two edges of the angle steel 4. At this time, the flange 8 can be welded. The size of the bracket can be adjusted by bolts 1 of different lengths. By turning the hexagonal bolt and adjusting the upper and lower positions of the angle steel 4, it can be suitable for pipe openings 7 and flanges 8 of different sizes, such as Figure 5 , 6 .

[0026] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed or modified in any way.

Claims

1. A simple auxiliary bracket for flange welding, characterized in that: The invention comprises a bolt (1), a steel wire (2) fixedly arranged on a screw rod (6) near the head of the bolt (1), the steel wire (2) being perpendicular to the screw rod (6); a nut (3) being arranged on the screw rod (6), an angle steel (4) being arranged between the steel wire (2) and the nut (3), the angle steel (4) being fixedly connected to the nut (3); two webs of the angle steel (4) having equal widths, a screw rod hole (5) being arranged at the center of the angle of the angle steel (4); an opening of the angle steel (4) facing upward; the head of the bolt (1) being fitted with the inner bottom surface of a pipe opening (7), two edges of the angle steel (4) being fitted with the inner top surface of the pipe opening (7), the two edges extending out of the pipe opening (7), and the inner hole of a flange (8) being clamped on the two edges.

2. A simple auxiliary bracket for flange welding according to claim 1, characterized in that: The nut (3) is installed at the top of the angle of the angle steel (4) and the edge of the screw hole (5).

3. A simple auxiliary bracket for flange welding according to claim 1, characterized in that: The diameter of the screw hole (5) is larger than the diameter of the screw (6) and smaller than the outer diameter of the nut (3).

4. A simple auxiliary bracket for flange welding according to claim 1, characterized in that: The screw rod (6) and the two webs of the angle steel (4) have the same angle.

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