Argon filling tool for argon arc welding of guide pipe

Abstract

The utility model relates to the technical field of argon arc welding, in particular to an argon filling tool for argon arc welding of a guide pipe, which comprises a packer, an expansion bolt and an argon filling pipe, the packer is provided with a multi-stage sleeve, a rubber sleeve is mounted on the sleeve, the outer diameter surface of the expansion bolt is matched with the inner diameter surface of the packer, and the rubber sleeve is mounted on the rubber sleeve. The expansion bolt can be in threaded connection with the packer, the top end of the expansion bolt can be inserted into the argon filling pipe, and the argon filling pipe is communicated with an argon filling device. A traditional guide pipe argon filling structure is changed into a structure combining a packer and an argon filling pipe. One end of the pipe is sealed through expansion of the packer, an argon filling pipe is inserted into the packer, and the inner diameter face of the pipe is filled with argon through the argon filling pipe. Meanwhile, the packer is provided with multiple stages of pipe diameters, adapts to pipes of different specifications, and has the advantages of being simple in structure, convenient to use, high in argon filling speed, capable of saving argon and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of argon arc welding, in particular to an argon filling tool for argon arc welding of a catheter. Background Art

[0002] Argon arc welding is a welding technology that uses argon as a shielding gas, also known as argon gas shielded welding. It is to pass argon shielding gas around the arc welding to isolate the air outside the welding area to prevent oxidation of the welding area. Argon arc welding technology is based on the principle of ordinary arc welding. It uses argon gas to protect metal welding materials. Through high current, the welding materials are melted into liquid on the welded substrate to form a molten pool, so that the welded metal and welding materials can achieve metallurgical bonding. Because argon gas is continuously supplied during high-temperature molten welding, the welding materials cannot come into contact with oxygen in the air, thereby preventing oxidation of the welding materials. Therefore, stainless steel and iron hardware metals can be welded.

[0003] In the prior art, argon arc welding guns are often used for welding in the process of butt welding of pipes, and in the process of filling argon, the ends of the pipes need to be sealed with tape, and then argon filling holes and discharge holes are opened on the tape, so that the inside of the pipes can be quickly filled with argon gas to isolate the air. However, this method usually requires manual operation by welders, and it is difficult to truly achieve the effect of air isolation of pipes and saving argon gas.

[0004] In view of this, it is urgent to design an argon filling tool for catheter argon arc welding, and reform the traditional catheter argon filling into a structure combining a packer and an argon filling tube. The expansion of the packer is used to seal one end of the pipe, and then the argon filling tube is inserted into the packer, and the argon filling tube is used to fill argon into the inner diameter surface of the pipe. At the same time, the packer is provided with multiple pipe diameters to adapt to pipes of different specifications, and has the advantages of simple structure, easy use, fast argon filling speed, and saving argon gas. Utility Model Content

[0005] In order to solve the deficiencies of the above-mentioned prior art, the purpose of the utility model is to provide an argon filling tool for catheter argon arc welding, comprising: a packer, an expansion plug and an argon filling tube, the packer is provided with a multi-stage casing, a rubber sleeve is installed on the casing, the outer diameter surface of the expansion plug matches the inner diameter surface of the packer, the expansion plug can be threadedly connected to the packer, the top end of the expansion plug can be inserted into the argon filling tube, and the argon filling tube is connected to the argon filler.

[0006] Furthermore, the packer comprises: a casing, a rubber sleeve and a connector, the diameter of the casing increases from bottom to top, the rubber sleeve is installed on the outer diameter surface of the casing, and the connector fixes the casings to each other.

[0007] Furthermore, the sleeve is configured as a hollow frame, and the thread grooves of the rubber sleeve are embedded in the inner diameter surface of the sleeve.

[0008] Furthermore, the expansion plug includes: a plug head, a plug body and thread teeth, the outer diameter of the plug body increases from bottom to top, the plug head is fixedly mounted on the top surface of the plug body, and the thread teeth are fixedly mounted on the outer diameter surface of the plug body.

[0009] Furthermore, the outer diameter surface of the bolt body matches with the inner diameter surface of the sleeve, and the thread groove matches with the thread teeth.

[0010] Furthermore, a through hole is opened at the center of the bolt head and the bolt body, and the inner diameter surface of the through hole matches the outer diameter surface of the argon filling tube.

[0011] Beneficial effects:

[0012] The utility model provides an argon filling tool for argon arc welding of a catheter, which reforms the traditional catheter argon filling into a structure combining a packer and an argon filling tube. The expansion of the packer is used to seal one end of the pipe, and then the argon filling tube is inserted into the packer, and the argon filling tube is used to fill argon into the inner diameter surface of the pipe. At the same time, the packer is provided with multiple pipe diameters to adapt to pipes of different specifications, and has the advantages of simple structure, convenient use, fast argon filling speed, saving argon gas, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of an argon-filling tooling packer for argon arc welding of a catheter according to the utility model;

[0014] Figure 2 This is a schematic diagram of an argon-filling tooling expansion plug for argon arc welding of a catheter according to the utility model;

[0015] Markings in the figure: 1-packer, 2-expansion plug, 3-argon filling tube, 11-casing, 12-rubber sleeve, 13-connector, 21-bolt head, 22-bolt body, 23-thread teeth. DETAILED DESCRIPTION

[0016] 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 belong to the protection scope of the utility model.

[0017] As shown in the figure, the utility model discloses an argon filling tool for catheter argon arc welding, comprising: a packer 1, an expansion plug 2 and an argon filling tube 3, the packer 1 is provided with a multi-stage casing, a rubber sleeve 12 is installed on the casing, the outer diameter surface of the expansion plug 2 is matched with the inner diameter surface of the packer 1, the expansion plug 2 can be threadedly connected with the packer 1, the top end of the expansion plug 2 can be inserted into the argon filling tube 3, and the argon filling tube 3 is connected to the argon filler.

[0018] In this embodiment, the packer 1 includes: a casing 11, a rubber sleeve 12 and a connector 13. The diameter of the casing 11 increases from bottom to top. The rubber sleeve 12 is installed on the outer diameter surface of the casing 11. The connector 13 fixes the casing 11 to each other.

[0019] In this embodiment, the sleeve 11 is configured as a hollow frame, and the thread grooves of the rubber sleeve 12 are embedded in the inner diameter surface of the sleeve 11 .

[0020] In this embodiment, the expansion plug 2 includes: a bolt head 21, a bolt body 22 and thread teeth 23. The outer diameter of the bolt body 22 increases from bottom to top. The bolt head 21 is fixedly installed on the top surface of the bolt body 22, and the thread teeth 23 are fixedly installed on the outer diameter surface of the bolt body 22.

[0021] In this embodiment, the outer diameter surface of the bolt body 22 matches with the inner diameter surface of the sleeve 11 , and the thread groove matches with the thread teeth 23 .

[0022] In this embodiment, a through hole is opened at the center of the bolt head 21 and the bolt body 22 , and the inner diameter surface of the through hole matches the outer diameter surface of the argon filling tube 3 .

[0023] Working principle:

[0024] First, since a packer 1 is provided, the packer 1 is composed of a casing 11, a rubber sleeve 12 and a connector 13. The diameter of the casing 11 increases from bottom to top, and the casings 11 are fixedly connected by the connector 13. The casing 11 is set as a hollow skeleton, and the rubber sleeve 12 is fixedly installed on the outer diameter surface of the casing 11, and the rubber sleeve 12 is equivalent to being tightly clamped on the outer diameter surface of the casing 11.

[0025] Among them, since the inner diameter surface of the rubber sleeve 12 is provided with thread grooves, the inner diameter of the thread grooves is smaller than the inner diameter of the sleeve 11 .

[0026] Among them, since the expansion plug 2 is composed of a plug head 21, a plug body 22 and thread teeth 23, the outer diameter of the plug body 22 increases from bottom to top, and the outer diameter surface of the plug body 22 is engraved with thread teeth 23. The outer diameter surface of the plug body 22 matches the inner diameter surface of the casing 11. The thread teeth 23 match the thread tooth grooves. When the expansion plug 2 is threadedly connected in the packer 1, the thread teeth 23 and the thread tooth grooves are meshed. The expansion plug 2 lifts the rubber sleeve 12, thereby increasing the outer diameter of the packer 1, thereby isolating the inner diameter surface of the pipe to prevent air leakage.

[0027] The plug head 21 and the plug body 22 have through holes at their axes, and the through holes match the argon filling tube 3. When the argon filling tube 3 is inserted into the through holes, the argon filling tube 3 guides the argon gas in the argon filler into the inner diameter surface of the pipe.

[0028] The utility model provides an argon filling tool for argon arc welding of a catheter, which reforms the traditional catheter argon filling into a structure combining a packer 1 and an argon filling tube 3. The expansion of the packer 1 is used to seal one end of the pipe, and then the argon filling tube 3 is inserted into the packer 1, and the argon filling tube 3 is used to fill argon into the inner diameter surface of the pipe. At the same time, the packer 1 is provided with multiple pipe diameters to adapt to pipes of different specifications, and has the advantages of simple structure, convenient use, fast argon filling speed, saving argon gas, etc.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. All modifications, equivalent substitutions, improvements, etc. within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An argon filling tool for argon arc welding of a catheter, comprising: A packer (1), an expansion plug (2) and an argon filling tube (3), characterized in that the packer (1) is provided with a multi-stage casing, a rubber sleeve (12) is installed on the casing, the outer diameter surface of the expansion plug (2) matches the inner diameter surface of the packer (1), the expansion plug (2) can be threadedly connected to the packer (1), the top end of the expansion plug (2) can be inserted into the argon filling tube (3), and the argon filling tube (3) is connected to the argon filler.

2. The argon filling tool for argon arc welding of a catheter according to claim 1, characterized in that: The packer (1) comprises: a casing (11), a rubber sleeve (12) and a connector (13); the diameter of the casing (11) increases from bottom to top; the rubber sleeve (12) is mounted on the outer diameter surface of the casing (11); and the connector (13) fixes the casing (11) to each other.

3. The argon filling tool for argon arc welding of a catheter according to claim 2, characterized in that: The sleeve (11) is configured as a hollow frame, and the thread grooves of the rubber sleeve (12) are embedded in the inner diameter surface of the sleeve (11).

4. The argon filling tool for argon arc welding of a catheter according to claim 3, characterized in that: The expansion plug (2) comprises: a plug head (21), a plug body (22) and thread teeth (23); the outer diameter of the plug body (22) increases from bottom to top; the plug head (21) is fixedly mounted on the top surface of the plug body (22); and the thread teeth (23) are fixedly mounted on the outer diameter surface of the plug body (22).

5. The argon filling tool for argon arc welding of a catheter according to claim 4, characterized in that: The outer diameter surface of the bolt body (22) matches with the inner diameter surface of the sleeve (11), and the thread tooth groove matches with the thread teeth (23).

6. The argon filling tool for argon arc welding of a catheter according to claim 5, characterized in that: A through hole is provided at the center of the bolt head (21) and the bolt body (22), and the inner diameter surface of the through hole matches the outer diameter surface of the argon filling tube (3).

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