Welding seam gas protection device

Abstract

The utility model relates to the field of welding seam protection, and particularly discloses a welding seam gas protection device which comprises a gas conveying pipeline, a rotating blocking disc and a fixed blocking disc. The gas conveying pipeline is arranged in the weld joint pipeline, a fixing plug disc is arranged at one end of the gas conveying pipeline, a connecting hose is arranged at the other end of the gas conveying pipeline and connected with an external protective gas conveying device, a screw is arranged on the gas conveying pipeline beside the connecting hose, and the screw is hollow. The screw rod is communicated with the interiors of the gas conveying pipeline and the connecting hose, a rotating blocking disc is arranged on the screw rod, a disc column is arranged on the rotating blocking disc, disc rotating grooves are formed in the rotating blocking disc and the disc column, and a plurality of gas outlet holes are uniformly formed in the position, between the screw rod and the fixed blocking disc, of the gas conveying pipeline; the welding seam gas protection device provided by the utility model is a device for filling the protective gas into the pipeline in the welding process of the pipeline, and the protective gas can be filled into the pipelines with different thicknesses.

Description

Technical Field

[0001] The utility model relates to the field of weld protection, in particular to a weld gas protection device. Background Art

[0002] Stainless steel products have the characteristics of smooth and firm surface, not easy to accumulate dirt and easy to clean. Therefore, stainless steel products are widely used in building materials decoration, food processing, catering, brewing and chemical industries. Smooth surface is an important feature of stainless steel products and is of great significance for maintaining the normal functions of stainless steel products. There are many types of stainless steel products. In the process of welding stainless steel pipes, the oxidation of oxygen has various effects on the welds at the welds. Therefore, it is necessary to fill the stainless steel pipe with inert gas (such as argon) to perform gas protection on the welds inside the pipe.

[0003] The existing weld gas protection device cannot seal pipes of different thicknesses when in use, resulting in the need to continuously replenish gas during the welding process, resulting in a large amount of waste and increased protection costs. Therefore, a new weld gas protection device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a welding seam gas protection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a weld gas protection device, comprising a gas pipeline, a rotating plugging disk, and a fixed plugging disk; the gas pipeline is arranged inside the weld pipeline, a fixed plugging disk is arranged on one end of the gas pipeline, a connecting hose is arranged on the other end of the gas pipeline, the connecting hose is connected to an external protective gas supply device, a screw is arranged on the gas pipeline next to the connecting hose, the screw is hollow inside, the screw and the gas pipeline and the connecting hose are connected inside, a rotating plugging disk is arranged on the screw, and a plurality of air outlet holes are evenly arranged at a position of the gas pipeline between the screw and the fixed plugging disk.

[0006] Preferably, a disk column is provided on the rotating blocking disk, and a disk rotation groove is provided on the rotating blocking disk and the disk column, the disk rotation groove is consistent with the screw thread, the screw passes through the disk rotation groove, and the rotating blocking disk is rotated to make the rotating blocking disk move on the screw.

[0007] Preferably, a rubber pad is provided on the rotating plugging disk, and the rubber pad improves the sealing performance of the rotating plugging disk to the weld pipeline.

[0008] Preferably, a disk stud is provided on the fixed plugging disk, and a screw hole is provided on the gas pipeline. The disk stud is screwed into the screw hole, and the connection and separation of the fixed plugging disk and the gas pipeline are achieved through the disk stud.

[0009] Preferably, a disk mounting plate is provided on the fixed blocking disk, the disk mounting plates are arranged at both ends of the fixed blocking disk, plate columns are provided on the disk mounting plate, and holes are provided on the plate columns and the disk mounting plate.

[0010] Preferably, a rotating rod is provided in the holes on the plate column and the disc mounting plate, a fixing plate is provided on one end of the rotating rod, a rotating head is provided on the other end of the rotating rod, and wear grooves are provided on the fixing plate. By rotating the rotating head, the fixing plate is fitted onto the surface of the weld pipe, so that the weld pipe is clamped and fixed.

[0011] Preferably, the rotating rod is provided with threads, and corresponding threads are provided inside the holes on the plate column and the disc mounting plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the insertion and installation of the gas pipeline is facilitated by the provision of a detachable fixed plugging disk; the weld pipelines of different lengths can be adapted and conveniently fixed by the provision of a movable rotating plugging disk; the provision of a fixed plate facilitates the clamping and fixing of the weld pipeline; the provision of a rubber pad and a fixed plugging disk seals the inside of the weld pipeline, reduces the use of protective gas and improves economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall structure of the side of the utility model;

[0015] Figure 3 This is a schematic diagram of the gas pipeline structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the rotating blocking disk structure of the utility model;

[0017] Figure 5 This is a schematic diagram of the fixed blocking disk structure of the utility model;

[0018] Numbers in the figure: 1. gas transmission pipeline; 11. air outlet; 12. screw; 13. connecting hose; 14. screw hole; 2. rotating plugging plate; 21. disk column; 22. rubber pad; 23. disk rotating groove; 3. fixed plugging plate; 31. disk mounting plate; 32. plate column; 33. disk stud; 4. fixing plate; 41. rotating rod; 42. rotating head. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figure 1-5 The utility model provides a technical solution: a weld gas protection device, comprising a gas pipeline 1, a rotating plugging disk 2, and a fixed plugging disk 3; the gas pipeline 1 is arranged inside the weld pipeline, a fixed plugging disk 3 is arranged on one end of the gas pipeline 1, a connecting hose 13 is arranged on the other end of the gas pipeline 1, the connecting hose 13 is connected to an external protective gas delivery device, a screw 12 is arranged on the gas pipeline 1 next to the connecting hose 13, the screw 12 is hollow inside, the screw 12 is connected to the gas pipeline 1 and the connecting hose 13, a rotating plugging disk 2 is arranged on the screw 12, and a plurality of gas outlet holes 11 are evenly arranged at a position of the gas pipeline 1 between the screw 12 and the fixed plugging disk 3.

[0023] Furthermore, a disk column 21 is provided on the rotating blocking disk 2, and a disk rotation groove 23 is provided on the rotating blocking disk 2 and the disk column 21. The disk rotation groove 23 is consistent with the thread of the screw 12. The screw 12 passes through the disk rotation groove 23, and the rotating blocking disk 2 is rotated so that the rotating blocking disk 2 moves on the screw 12.

[0024] Furthermore, a rubber pad 22 is provided on the rotating plugging disk 2, and the rubber pad 22 improves the sealing performance of the rotating plugging disk 2 to the weld pipeline.

[0025] Furthermore, a disk stud 33 is provided on the fixed plugging disk 3, and a screw hole 14 is provided on the gas pipeline 1. The disk stud 33 is screwed into the screw hole 14, and the connection and separation of the fixed plugging disk 3 and the gas pipeline 1 are achieved through the disk stud 33.

[0026] Furthermore, a disk mounting plate 31 is provided on the fixed blocking disk 3 , and the disk mounting plate 31 is arranged at both ends of the fixed blocking disk 3 . Plate columns 32 are provided on the disk mounting plate 31 , and holes are provided on the plate columns 32 and the disk mounting plate 31 .

[0027] Furthermore, a rotating rod 41 is provided in the holes on the plate column 32 and the disk mounting plate 31, a fixing plate 4 is provided on one end of the rotating rod 41, and a rotating head 42 is provided on the other end of the rotating rod 41. The fixing plate 4 is provided with wear grooves. By rotating the rotating head 42, the fixing plate 4 is attached to the surface of the weld pipe, so that the weld pipe is clamped and fixed.

[0028] Working principle: When the pipeline needs to be welded, the gas pipeline 1 is inserted into the pipeline, and one end of the gas pipeline 1 provided with a screw hole 14 passes through the weld pipeline, and the disk stud 33 on the fixed plugging disk 3 is screwed into the screw hole 14 to fix one end of the gas pipeline 1, and then the rotating plugging disk 2 is rotated, and the rotating plugging disk 2 is fitted to one end of the weld pipeline, and the rotating plugging disk 2 is tightened so that the fixed plugging disk 3 is fitted and fixed to one end of the weld pipeline, and the rotating plugging disk 2 is sealed by the rubber pad 22, and the rotating head 42 is rotated to clamp the fixed plate 4 to the outer wall of the weld pipeline, thereby fixing the fixed plugging disk 3, and the protective gas is input into the weld pipeline through the connecting hose 13 and the air outlet 11.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Welding gas protection device, characterized in that: The invention comprises a gas pipeline (1), a rotating plugging disk (2), and a fixed plugging disk (3); the gas pipeline (1) is arranged inside a weld pipeline, a fixed plugging disk (3) is arranged on one end of the gas pipeline (1), a connecting hose (13) is arranged on the other end of the gas pipeline (1), the connecting hose (13) is connected to an external protective gas supply device, a screw (12) is arranged on the gas pipeline (1) next to the connecting hose (13), the screw (12) is hollow inside, the screw (12) and the gas pipeline (1) and the connecting hose (13) are connected inside, the rotating plugging disk (2) is arranged on the screw (12), and a plurality of gas outlet holes (11) are evenly arranged at a position between the screw (12) and the fixed plugging disk (3) on the gas pipeline (1).

2. The welding gas protection device according to claim 1 is characterized in that: The rotating blocking disk (2) is provided with a disk column (21), and the rotating blocking disk (2) and the disk column (21) are provided with a disk rotation groove (23), the disk rotation groove (23) and the screw (12) thread are matched, and the screw (12) passes through the disk rotation groove (23).

3. The weld gas protection device according to claim 1, characterized in that: A rubber pad (22) is provided on the rotating blocking disk (2).

4. The weld gas protection device according to claim 1, characterized in that: The fixed plugging disk (3) is provided with a disk stud (33), the gas transmission pipeline (1) is provided with a screw hole (14), and the disk stud (33) is screwed into the screw hole (14).

5. The weld gas protection device according to claim 1, characterized in that: The fixed blocking disk (3) is provided with a disk mounting plate (31), the disk mounting plates (31) are arranged at both ends of the fixed blocking disk (3), the disk mounting plates (31) are provided with plate columns (32), and holes are provided on the plate columns (32) and the disk mounting plates (31).

6. The welding gas protection device according to claim 5, characterized in that: A rotating rod (41) is arranged in the holes on the plate column (32) and the disk mounting plate (31), a fixing plate (4) is arranged on one end of the rotating rod (41), a rotating head (42) is arranged on the other end of the rotating rod (41), and grinding grooves are arranged on the fixing plate (4).

7. The welding gas protection device according to claim 6, characterized in that: The rotating rod (41) is provided with threads, and corresponding threads are provided inside the holes on the plate column (32) and the disc mounting plate (31).

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