CN211708438U

CN211708438U - Circular tube welding structure

Info

Publication number: CN211708438U
Application number: CN202020102558.1U
Authority: CN
Inventors: 秦国贤
Original assignee: Shaoxing Sanxiong Steel Structure Co ltd
Current assignee: Shaoxing Sanxiong Steel Structure Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-10-20
Anticipated expiration: 2030-01-17

Abstract

A circular tube welding structure belongs to the technical field of steel structure welding; through set up a plurality of cut grooves on the inner circle face at circular liner, can prevent that circular liner is when buckling, the inner circle face receives the extrusion and causes the fold, and the outer lane face receives to pull and makes the liner produce the crackle, the outer lane face diameter of circular liner is the same with the inner circle face diameter of pipe, and the outer lane face of circular liner closely laminates in the inner chamber face of pipe, can effectively prevent when the welding, the molten metal liquid that melts flows in the pipe inner chamber, extend to outside the pipe through the width with circular liner half left, and set up the blind plate in the left side of circular liner, can effectively increase the volume of molten bath, both can improve welding efficiency, can strengthen welded intensity again.

Description

Circular tube welding structure

Technical Field

The utility model belongs to the technical field of steel construction welding, specifically relate to a pipe welded structure.

Background

In the construction of a steel structure, when plate butt welding or pipe longitudinal seam butt welding is carried out, groove processing is often needed to be carried out on base materials at a butt joint part, but when materials with the thickness of more than 10mm are welded, because the fluidity of carbon steel is poor, a molten pool is difficult to form at the groove to provide a stable bottom foundation, a traditional ceramic liner is fixed on the back surfaces of two base materials by a self-contained adhesive tape, the self-contained adhesive tape on the ceramic liner can be heated and melted to form a black substance to be attached to the base materials in the welding process, the black substance is difficult to clean by a conventional acid washing method, the efficiency is influenced, and the cost is increased.

Disclosure of Invention

The utility model discloses solve the technical problem that above-mentioned prior art exists, provide a welded structure for steel construction welding.

The above technical problem of the present invention can be solved by the following technical solutions: the utility model provides a pipe welded structure, the both sides of pipe are equipped with the groove, be equipped with a plurality of cutting grooves on the inner circle face of circular liner, be equipped with a plurality of stoppers on the outer circle face of circular liner, the excircle diameter of circular liner is the same with the internal diameter of pipe, the right-hand member in pipe inner chamber is located to circular liner to stopper and groove laminating, the width of circular liner third extend to outside the pipe left, the outer lane face of circular liner closely laminates in the inner chamber face of pipe to through spot welding and pipe relatively fixed, the left side of circular liner is equipped with the blind plate.

Preferably, the specification of the circular pad is A, B, C, the diameter of the A specification is 380mm +/-0.5 mm, the diameter of the B specification is 420mm +/-0.5 mm, and the diameter of the C specification is 450mm +/-0.5 mm.

The utility model discloses beneficial effect who has: through set up a plurality of cut grooves on the inner circle face at circular liner, can prevent that circular liner is when buckling, the inner circle face receives the extrusion and causes the fold, and the outer lane face receives to pull and makes the liner produce the crackle, the outer lane face diameter of circular liner is the same with the inner circle face diameter of pipe, and the outer lane face of circular liner closely laminates in the inner chamber face of pipe, can effectively prevent when the welding, the molten metal liquid that melts flows into in the pipe inner chamber, extend to outside the pipe through the width with circular liner third left, and set up the blind plate in the left side of circular liner, can effectively increase the volume of molten bath, both can improve welding efficiency, can strengthen welded intensity again.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a half-section structure of the present invention;

FIG. 3 is a schematic view of a gasket according to the present invention;

fig. 4 is an enlarged schematic view of a portion a of fig. 3.

In the figure: 1. a circular tube; 2. a circular gasket; 3. beveling; 4. cutting the groove; 5. a blind plate; 6. and a limiting block.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): the utility model provides a pipe welded structure, as shown in fig. 1-4, the both sides of pipe are equipped with the groove, be equipped with a plurality of cutting grooves on the inner periphery of circular liner, be equipped with a plurality of stoppers on the outer peripheral face of circular liner, the excircle diameter of circular liner is the same with the internal diameter of pipe, the right-hand member in pipe inner chamber is located to circular liner to stopper and groove laminating, the width of circular liner third extend to outside the pipe left, the outer peripheral face of circular liner closely laminates in the inner chamber face of pipe to through spot welding and pipe relatively fixed, the left side of circular liner is equipped with the blind plate.

The specification of circular liner is divided into A, B, C, A specification diameter is 380mm 0.5mm, B specification diameter is 420mm 0.5mm, C specification diameter is 450mm 0.5 mm.

The principle of the utility model is as follows: when the round pipe and the blind plate are required to be in butt welding, firstly, the round liner is required to be plugged into the inner cavity of the round pipe, one third of the thickness of the round liner is left outside the round pipe, and then the combination formed by the round liner and the round pipe is attached to the blind plate, so that a molten pool is formed by the groove, the round liner exposed outside the round pipe and the blind plate, and flowing metal liquid is convenient to gather during welding.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.

Claims

1. The utility model provides a pipe welded structure, includes pipe and circular liner, its characterized in that the both sides of pipe are equipped with the groove, be equipped with a plurality of cutting grooves on the inner circle face of circular liner, be equipped with a plurality of stoppers on the outer lane face of circular liner, the excircle diameter of circular liner is the same with the internal diameter of pipe, the right-hand member in pipe inner chamber is located to circular liner to stopper and groove laminating, the width of circular liner third extend to outside the pipe left, the outer lane face of circular liner closely laminates in the inner chamber face of pipe to through spot welding and pipe relatively fixed, the left side of circular liner is equipped with the blind plate.

2. A welded structure of round tubes as defined in claim 1, wherein said circular gasket has A, B, C specifications, said a specification has a diameter of 380mm ± 0.5mm, said B specification has a diameter of 420mm ± 0.5mm, and said C specification has a diameter of 450mm ± 0.5 mm.