Internal argon filling device for stainless steel pipeline welding

Abstract

The utility model relates to the technical field of pipeline welding, and discloses an internal argon filling device for stainless steel pipeline welding, which comprises a mounting plate, the surface of the mounting plate is fixedly sleeved with a first limiting ring, one side of the mounting plate is provided with a through hole, and a connecting sleeve is fixedly embedded in an inner cavity of the through hole. A fixed shell is fixed on one side of the mounting plate; by means of the first limiting ring and the second limiting ring, the sealing performance between the device and a pipeline can be improved, more argon can be contained in the pipeline, the welding effect on the stainless steel pipeline is effectively improved, meanwhile, under the action of the limiting mechanism, the argon pipe can be limited without being damaged, and the welding quality of the stainless steel pipeline is improved. And the fixing effect is good, so that the situation that inflation of the stainless steel pipeline is affected due to the fact that the argon pipe is damaged too much after being used for a long time is avoided, and the problems that in the using process of an existing device, the sealing effect is poor, and inflation of the pipeline is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline welding, in particular to an internal argon filling device for stainless steel pipeline welding. Background Art

[0002] Stainless steel pipe is a hollow, long, round steel material, which is widely used in industrial pipelines and mechanical structural parts in the fields of petroleum, chemical, medical, food, light industry, mechanical instruments, etc. In addition, when the bending and torsional strengths are the same, the weight is relatively light, so it is also widely used in the manufacture of mechanical parts and engineering structures. [1] It is also commonly used in furniture and kitchen utensils. When stainless steel pipes are used in the industrial field, they need to be welded during the production process. Argon is an inert gas that can isolate the air during the welding process. If the high-temperature welding wire comes into contact with oxygen, impurities such as ferroferric oxide will be generated. At this time, an argon filling device is needed to fill it with argon.

[0003] The current device can isolate argon during use, but the existing device is that the staff uses sponge to cut into a cylinder and then insert it into the inside of the pipe. The sponge blocks manually cut by the staff have a poor sealing effect during use, resulting in less argon inside the pipe, affecting the welding effect of the pipe. At the same time, when connecting the argon pipe to the device, most of them use a positioning rod to penetrate the argon pipe to connect the argon pipe to the device. Not only is it inconvenient to fix the argon pipe, but also after frequent use, the argon pipe will be damaged more, resulting in part of the argon pipe being unusable, affecting the inflation of the pipe. Utility Model Content

[0004] The utility model aims to provide an internal argon filling device for stainless steel pipeline welding 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: an internal argon filling device for stainless steel pipe welding, comprising a mounting plate, a surface fixing sleeve of the mounting plate is provided with a first limiting ring, a through hole is opened on one side of the mounting plate, a connecting sleeve is fixedly embedded in the inner cavity of the through hole, a fixing shell is fixed on one side of the mounting plate, a limiting mechanism is fixed in the inner cavity of the fixing shell, a fixing plate is provided on one side of the mounting plate, a surface fixing sleeve of the fixing plate is provided with a second limiting ring, a connecting rope is fixed on one side of the fixing plate, a winding roller is installed on one side of the mounting plate, a handle is installed on one side of the winding roller, and the winding roller is fixedly connected to the connecting rope.

[0006] Preferably, the limiting mechanism includes a compression spring, which is fixedly connected to the inner wall of the fixed shell, a movable block is fixed to the other end of the compression spring, the surface of the movable block is slidably connected to the inner wall of the fixed shell, and a limiting block is fixed to the other end of the movable block.

[0007] Preferably, a groove is provided on the surface of the winding roller, the inner cavity of the groove is U-shaped, and the groove is used in conjunction with the connecting rope.

[0008] Preferably, a connecting rod is fixed to the bottom of the movable block, and the other end of the connecting rod penetrates to the outside of the fixed shell and is slidably connected to the inner wall thereof.

[0009] Preferably, the limit block is in the shape of a cone and has an inclined structural design.

[0010] Preferably, the first limiting ring, the connecting sleeve and the second limiting ring are all made of rubber, and the first limiting ring and the second limiting ring have the same volume.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model can increase the sealing between the device and the pipeline through the first limiting ring and the second limiting ring, so that more argon gas can be inside the pipeline, thereby effectively increasing the welding effect of the stainless steel pipeline. At the same time, under the action of the limiting mechanism, the argon gas tube can be limited without damaging it, and the fixing effect is better, thereby avoiding the situation where the argon gas tube is damaged after long-term use and affects the inflation of the stainless steel pipeline, and solves the problem that the sealing effect of the current device is poor during use and affects the inflation of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 It is a schematic diagram of a three-dimensional unfolded structure from another viewing angle in the utility model;

[0015] Figure 3 It is a schematic diagram of a partial three-dimensional cross-sectional structure in the utility model;

[0016] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0017] In the figure: 1. mounting plate; 2. first limiting ring; 3. through hole; 4. connecting sleeve; 5. fixed shell; 6. limiting mechanism; 61. compression spring; 62. movable block; 63. limiting block; 7. fixed plate; 8. second limiting ring; 9. connecting rope; 10. winding roller; 11. handle; 12. groove; 13. connecting rod. DETAILED DESCRIPTION

[0018] 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 in 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.

[0019] See also Figure 1-4 As shown, an internal argon filling device for stainless steel pipe welding comprises a mounting plate 1, a surface fixed sleeve of the mounting plate 1 is provided with a first limiting ring 2, a through hole 3 is opened on one side of the mounting plate 1, a connecting sleeve 4 is fixedly embedded in the inner cavity of the through hole 3, a fixing shell 5 is fixed on one side of the mounting plate 1, a limiting mechanism 6 is fixed in the inner cavity of the fixing shell 5, a fixing plate 7 is arranged on one side of the mounting plate 1, a surface fixed sleeve of the fixing plate 7 is provided with a second limiting ring 8, a connecting rope 9 is fixed on one side of the fixing plate 7, a winding roller 10 is installed on one side of the mounting plate 1, a handle 11 is installed on one side of the winding roller 10, and a winding roller 10 is provided with a handle 11. The roller 10 is fixedly connected to the connecting rope 9. The device can increase the sealing between the device and the pipeline through the first limiting ring 2 and the second limiting ring 8, so that more argon gas can be inside the pipeline, thereby effectively increasing the welding effect of the stainless steel pipeline. At the same time, under the action of the limiting mechanism 6, the argon tube can be limited without damaging it, and the fixing effect is better, thereby avoiding the situation where the argon tube is damaged after long-term use and affects the inflation of the stainless steel pipeline, and solves the problem that the sealing effect of the current device is poor during use and affects the inflation of the pipeline.

[0020] The limiting mechanism 6 includes a compression spring 61, which is fixedly connected to the inner wall of the fixed shell 5. A movable block 62 is fixed to the other end of the compression spring 61. The surface of the movable block 62 is slidably connected to the inner wall of the fixed shell 5. A limiting block 63 is fixed to the other end of the movable block 62. In this embodiment, through the arrangement of the compression spring 61, the movable block 62 and the limiting block 63, the limiting block 63 can be squeezed under the action of the compression spring 61, so that it can squeeze and limit the argon tube, so that it will not easily shift its position during use, thereby improving the stability of the argon tube when connected to the device.

[0021] A groove 12 is provided on the surface of the winding roller 10, and the inner cavity of the groove 12 is U-shaped. The groove 12 is used in conjunction with the connecting rope 9. In this embodiment, through the setting of the groove 12, the connecting rope 9 can be limited under the action of its own shape, thereby improving the collection effect of the connecting rope 9.

[0022] A connecting rod 13 is fixed to the bottom of the movable block 62, and the other end of the connecting rod 13 passes through the outer side of the fixed shell 5 and is slidably connected to its inner wall. In this embodiment, through the setting of the connecting rod 13, when it is necessary to release the limit on the argon tube, the connecting rod 13 can be directly pulled to squeeze the compression spring 61, thereby releasing the limit on the argon tube and facilitating the removal of the argon tube.

[0023] The shape of the limit block 63 is a cone, and the limit block 63 is an inclined structural design. In this embodiment, through this arrangement, the argon tube can be effectively limited under the action of the shape and angle of the limit block 63 itself, thereby improving the limiting effect on the argon tube.

[0024] The first limiting ring 2, the connecting sleeve 4 and the second limiting ring 8 are all made of rubber, and the volumes of the first limiting ring 2 and the second limiting ring 8 are the same. In this embodiment, through this arrangement, the first limiting ring 2 and the second limiting ring 8 improve the sealing effect of the device under the action of their own materials, and the connecting sleeve 4 can increase the friction between the argon tube, thereby improving the fixing effect of the argon tube.

[0025] Working principle: first, insert the argon pipe into the interior of the connecting sleeve 4, and then the argon pipe squeezes the limit block 63. The shape of the limit block 63 itself will not affect the movement of the argon pipe, and the argon pipe is moved to a suitable position, and then the mounting plate 1 and the parts on its surface are embedded into the interior of one side of the pipe, and then the pipe is sealed under the action of the first limit ring 2. Then the staff will embed the fixing plate 7 and the second limit ring 8 into the interior of the pipe, and seal the pipe under the action of the second limit ring 8's own material, and then start to rotate the handle 11, and then the handle 11 drives the winding roller 10 to rotate, and under the action of the winding roller 10 itself, the excess connecting rope 9 is wound up to avoid excessive connecting rope 9 affecting the welding of the pipe, and then the pipe is aligned and welded. After welding is completed, the staff pulls the argon pipe, and squeezes the argon pipe under the action of the limit block 63's own angle and the compression spring 61, so that it cannot be separated from the device, and then the argon pipe drives the surface parts to move through the connecting sleeve 4, and drives the fixing plate 7 and the second limit ring 8 to move under the action of the connecting rope 9, so that the device can be completely taken out from the inside of the pipe.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] 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. An internal argon filling device for stainless steel pipe welding, comprising a mounting plate (1), characterized in that: The surface fixing sleeve of the mounting plate (1) is provided with a first limiting ring (2); a through hole (3) is opened on one side of the mounting plate (1); a connecting sleeve (4) is fixedly embedded in the inner cavity of the through hole (3); a fixing shell (5) is fixed on one side of the mounting plate (1); a limiting mechanism (6) is fixed in the inner cavity of the fixing shell (5); a fixing plate (7) is provided on one side of the mounting plate (1); a second limiting ring (8) is provided on the surface fixing sleeve of the fixing plate (7); a connecting rope (9) is fixed on one side of the fixing plate (7); a winding roller (10) is installed on one side of the mounting plate (1); a handle (11) is installed on one side of the winding roller (10); the winding roller (10) is fixedly connected to the connecting rope (9).

2. The internal argon filling device for stainless steel pipe welding according to claim 1, characterized in that: The limiting mechanism (6) comprises a compression spring (61), the compression spring (61) is fixedly connected to the inner wall of the fixed shell (5), a movable block (62) is fixed to the other end of the compression spring (61), the surface of the movable block (62) is slidably connected to the inner wall of the fixed shell (5), and a limiting block (63) is fixed to the other end of the movable block (62).

3. The internal argon filling device for stainless steel pipeline welding according to claim 1, characterized in that: The surface of the winding roller (10) is provided with a groove (12), the inner cavity of the groove (12) is in a U-shape, and the groove (12) is used in conjunction with the connecting rope (9).

4. The internal argon filling device for stainless steel pipe welding according to claim 2, characterized in that: A connecting rod (13) is fixed to the bottom of the movable block (62), and the other end of the connecting rod (13) penetrates the outside of the fixed shell (5) and is slidably connected to the inner wall thereof.

5. The internal argon filling device for stainless steel pipe welding according to claim 2, characterized in that: The limiting block (63) is in the shape of a cone and has an inclined structural design.

6. The internal argon filling device for stainless steel pipeline welding according to claim 1, characterized in that: The first limiting ring (2), the connecting sleeve (4) and the second limiting ring (8) are all made of rubber, and the first limiting ring (2) and the second limiting ring (8) have the same volume.

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