CN212495908U - Stainless steel pipe argon flushing welding protection device - Google Patents
Stainless steel pipe argon flushing welding protection device Download PDFInfo
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- CN212495908U CN212495908U CN202020767236.9U CN202020767236U CN212495908U CN 212495908 U CN212495908 U CN 212495908U CN 202020767236 U CN202020767236 U CN 202020767236U CN 212495908 U CN212495908 U CN 212495908U
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Abstract
The utility model belongs to the technical field of the pipe welding, specifically provide a nonrust steel pipe dashes argon welding protection device, including argon conveying pipeline, argon conveying pipeline both ends are equipped with the sealed end cap of first sealed end cap and the sealed end cap of second that can radially receive and release respectively, and first sealed end cap can strut to butt and connect in the inner wall of treating the one end of welded pipe, and the sealed end cap of second can strut and butt in the inner wall of treating the other end of welded pipe, forms between the sealed end cap of first sealed end cap and the second and dashes argon welding protection space, and the intermediate part that is located the sealed end cap of first sealed end cap and second of argon conveying pipeline is equipped with the venthole that supplies argon gas spun. And respectively placing the two plugging heads at two ends of a welding line of the pipe to be welded, then opening the plugging heads to tightly attach to the inner wall of the pipe to be welded, and then introducing argon gas for welding. The device is convenient to disassemble and assemble, can be repeatedly used and saves consumables; two blocking heads are arranged, so that the welding surface of the inner wall of the pipeline is filled with argon, and the phenomenon of oxidation of the inner wall of the pipeline, which is caused by mixing with air, is avoided.
Description
Technical Field
The utility model belongs to the technical field of the pipe welding, concretely relates to nonrust steel pipe dashes argon welding protection device.
Background
Traditional pipeline is towards argon construction welding, one kind adopts water-soluble paper, sticky tape to seal the mouth of pipe of two pipelines that need the welding, has and aerifys the time long, extravagant a large amount of argon gas, and shortcomings such as the orificial material of shutoff such as water-soluble paper, gasket can not used repeatedly. The other type is that a disc-shaped baffle is adopted to form a sealing space, an air pipe is utilized to carry out argon flushing protection, a disc is provided with a rigid layer and an elastic layer, the disc is pulled out through a rope chain after welding is finished, therefore, the rigid layer can not be in good contact with the wall of a pipeline, the argon gas loss caused by air leakage is easy to occur is serious, the damage to the inner wall of the pipeline caused by pulling out through the rope chain is easy to occur, a thin-wall stainless steel pipe is mainly used in a domestic water supply system in civil building engineering, argon arc welding is adopted when DN is more than 100, the pipeline is mainly used in a horizontal transverse trunk pipe and a vertical pipe of the system, the baffle can not be taken out due to the breakage of the rope chain caused by only pulling out through the rope.
Disclosure of Invention
The utility model aims at overcoming the extravagant big problem of the argon flushing welding protection consumptive material among the prior art.
Therefore, the utility model provides a nonrust steel pipe dashes argon welding protection device, including argon gas pipeline, argon gas pipeline both ends are equipped with the sealed end cap of first sealed end cap and the second that can radially receive and release respectively, the sealed end cap of first sealed end cap can strut to connect in the inner wall of treating the one end of welded tube, the sealed end cap of second can strut and the butt in the inner wall of treating the other end of welded tube, it dashes argon welding protection space to form between the sealed end cap of first sealed end cap and the second, argon gas pipeline's being located the mid portion of the sealed end cap of first sealed end cap and second is equipped with and supplies argon gas spun venthole.
Preferably, the first sealing plug and the second sealing plug are umbrella ribs capable of being radially folded and unfolded, and an umbrella cover for sealing is arranged on the outer surface of each umbrella rib.
Preferably, the free end of the umbrella rib is provided with a rubber ring for abutting against the inner wall of the welded pipe.
Preferably, the diameter of the argon delivery pipe is smaller than the diameter of the pipe to be welded.
Preferably, the first sealing plug and the second sealing plug comprise an inner layer, a middle layer and an outer layer, the inner layer is made of fireproof cloth, the middle layer is made of a steel plate, and the outer layer is made of a rubber panel.
Preferably, the intermediate layer is a fan-shaped steel plate of 304 stainless steel 5mm thick.
Preferably, the air inlet end of the argon conveying pipeline is provided with a throttle valve and a one-way valve, and the one-way valve and the throttle valve are sequentially positioned in the flow direction of the air flow.
Preferably, the two ends of the argon conveying pipeline are respectively connected with the first sealing plug and the second sealing plug in a buckling mode.
Preferably, two ends of the argon conveying pipeline are respectively connected with the first sealing plug and the second sealing plug through a rotatable locking mechanism.
Preferably, the argon gas conveying pipeline is a stainless steel pipe.
The utility model has the advantages that: the utility model provides a stainless steel pipe dashes argon welding protection device, including argon gas pipeline, argon gas pipeline both ends are equipped with the sealed end cap of first sealed end cap and the second that can radially receive and release respectively, and first sealed end cap can strut to and connect in the inner wall of the one end of treating welded pipe way, and the sealed end cap of second can strut and butt in the inner wall of treating the other end of welded pipe way, forms between the sealed end cap of first sealed end cap and second and dashes argon welding protection space, and the mid portion that is located the sealed end cap of first sealed end cap and second of argon gas pipeline is equipped with the venthole that supplies argon gas spun. And respectively placing the two plugging heads at two ends of a welding line of the pipe to be welded, then opening the plugging heads to tightly attach to the inner wall of the pipe to be welded, and then introducing argon gas for welding. The device is convenient to disassemble and assemble, can be repeatedly used and saves consumables; two blocking heads are arranged, so that the welding surface of the inner wall of the pipeline is filled with argon, and the phenomenon of oxidation of the inner wall of the pipeline, which is caused by mixing with air, is avoided.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of the overall structure of the argon-filled welding protection device for stainless steel pipes of the present invention;
fig. 2 is a schematic view of the plug mounting structure of the argon-filled welding protection device for stainless steel pipes of the present invention.
Description of reference numerals: argon gas pipeline 1, venthole 2, first sealed end cap 3, the sealed end cap 4 of second, rib 5, umbrella face 6, rubber circle 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The embodiment of the utility model provides a nonrust steel pipe dashes argon welding protection device, as shown in figure 1 and figure 2, including argon gas pipeline 1, 1 both ends of argon gas pipeline are equipped with the sealed end cap 4 of first sealed end cap 3 and second that can radially receive and release respectively, first sealed end cap 3 can strut to support and connect in the inner wall of the one end of treating the welded tube way, the sealed end cap 4 of second can strut and butt in the inner wall of treating the welded tube way's the other end, it dashes argon welding protection space to form between the sealed end cap 4 of first sealed end cap 3 and second, argon gas pipeline 1 is located the intermediate part of first sealed end cap 3 and the sealed end cap 4 of second is equipped with and supplies argon gas spun venthole 2.
Before welding, the sealing plug installed on the argon conveying pipeline 1 is firstly folded so as to extend into the pipeline to be welded. When the sealing plugs at the two ends are respectively located at the two ends of the welding line, the sealing plugs are stretched and closed through the actuating mechanism, namely the sealing plugs are stretched to be attached to the inner wall through the switch located at the tail end of the argon conveying pipeline 1 to form a sealing state, and the air outlet 2 is located at the welding line. Argon gas is then flushed through the gas outlet 2 and welding is started. Wherein, venthole 2 evenly distributed is on the pipeline, and the argon gas evenly rushes out to the welding seam in and fill up pipeline inner wall face of weld, the pipeline inner wall oxidation phenomenon that appears with the air mixing when avoiding welding.
In an optimized scheme, the first sealing plug 3 and the second sealing plug 4 are umbrella ribs 5 capable of being radially folded and unfolded, and an umbrella cover 6 for sealing is arranged on the outer surface of each umbrella rib 5. Umbrella rib 5 is prior art, and umbrella rib 5 generally divide into two sections fan-shaped skeletons, and one section fan-shaped skeleton is articulated with argon gas pipeline 1, and another section fan-shaped skeleton is connected through a connecting rod with 1 sliding connection of argon gas pipeline, sliding connection's fan-shaped skeleton, and the connecting rod stretches out along argon gas pipeline 1, and the staff alright realize opening and closing of skeleton through the push-and-pull connecting rod like this. When needs welding, inwards push away the connecting rod and make the skeleton strut with treat that welded pipe inner wall butt is sealed, after the welding finishes, outwards pull the connecting rod and make the skeleton closed so that withdraw from skeleton and argon gas pipeline 1.
Preferably, the free end of the umbrella rib 5 is provided with a rubber ring 7 for abutting against the inner wall of the welded pipe. The rubber ring 7 can be better attached to the inner wall of the pipeline to form sealing.
Preferably, the diameter of the argon gas conveying pipeline 1 is smaller than that of the welded pipeline. So as to extend into the pipeline from the end part of the pipeline.
In a preferred scheme, the first sealing plug 3 and the second sealing plug 4 comprise an inner layer, a middle layer and an outer layer, the inner layer is made of fireproof cloth, the middle layer is made of a steel plate, and the outer layer is made of a rubber panel. The pipeline is divided into A/B end plugs, each plug is provided with an openable interlocking mechanism, the plugs are divided into three layers, the inner layer is wrapped by non-combustible fireproof cloth, the middle layer is provided with a 304 stainless steel fan-shaped steel plate with the thickness of 5mm, rubber with fan-shaped sections is arranged on the periphery of the stainless steel plate, and the opening and closing of the pipeline are realized through buttons arranged on the rigid pull rods. Be provided with rotatable locking mechanism between A end and B end, be convenient for install flexible metal collapsible tube when pipeline elbow department welding operation, the advantage is that actuating mechanism of both sides end accessible breather pipe stretches out and draws back and closes, sets up when opening and can closely paste with the pipe wall at 304 stainless steel fan-shaped steel sheet rubber all around, can contract after the welding operation, avoids fish tail pipeline inner wall.
Preferably, a throttle valve and a one-way valve are arranged at the air inlet end of the argon conveying pipeline 1, and the one-way valve and the throttle valve are sequentially located in the flow direction of the air flow. The air inlet end is provided with a check valve and a throttle valve, the argon flow can be effectively adjusted according to the pipe diameter of the pipeline, and the vent pipe is provided with a vent hole at the position of the welding line, so that the argon filling amount can be saved.
In an optimized scheme, two ends of the argon conveying pipeline 1 are respectively connected with the first sealing plug 3 and the second sealing plug 4 in a buckling mode. Can be a rotary lock joint, a press lock joint and the like, and can be realized by arranging a rotatable locking mechanism.
In a preferable scheme, two ends of the argon conveying pipeline 1 are respectively connected with the first sealing plug 3 and the second sealing plug 4 through a rotatable locking mechanism. A rotatable locking mechanism is arranged between the two ends, so that the metal hose can be increased, and the welding device is suitable for welding the turning position of the pipeline.
In a preferred scheme, the argon conveying pipeline 1 is a stainless steel pipe. The breather pipe can be regarded as the rigid link pole concurrently, can carry out the installation of connecting rod according to the length of single vertical pipeline, and on-the-spot adaptability is better.
The utility model has the advantages that: the utility model provides a stainless steel pipe dashes argon welding protection device, including argon gas pipeline, argon gas pipeline both ends are equipped with the sealed end cap of first sealed end cap and the second that can radially receive and release respectively, and first sealed end cap can strut to and connect in the inner wall of the one end of treating welded pipe way, and the sealed end cap of second can strut and butt in the inner wall of treating the other end of welded pipe way, forms between the sealed end cap of first sealed end cap and second and dashes argon welding protection space, and the mid portion that is located the sealed end cap of first sealed end cap and second of argon gas pipeline is equipped with the venthole that supplies argon gas spun. And respectively placing the two plugging heads at two ends of a welding line of the pipe to be welded, then opening the plugging heads to tightly attach to the inner wall of the pipe to be welded, and then introducing argon gas for welding. The device is convenient to disassemble and assemble, can be repeatedly used and saves consumables; two blocking heads are arranged, so that the welding surface of the inner wall of the pipeline is filled with argon, and the phenomenon of oxidation of the inner wall of the pipeline, which is caused by mixing with air, is avoided.
The above examples are merely illustrative of the present invention and do not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides a nonrust steel pipe dashes argon welding protection device which characterized in that: including argon gas pipeline, the sealed end cap of first sealed end cap and the sealed end cap of second that can radially receive and release are equipped with respectively at argon gas pipeline both ends, first sealed end cap can strut to and connect in the inner wall of the one end of waiting to weld the pipeline, the sealed end cap of second can strut and butt in the inner wall of the other end of waiting to weld the pipeline, form between first sealed end cap and the sealed end cap of second and dash argon welding protection space, argon gas pipeline's being located the mid portion of first sealed end cap and the sealed end cap of second is equipped with the venthole that supplies argon gas spun.
2. The argon-filled welding protection device for the stainless steel tube according to claim 1, wherein: the first sealing plug and the second sealing plug are umbrella ribs capable of being radially folded and unfolded, and umbrella covers for sealing are arranged on the outer surfaces of the umbrella ribs.
3. The argon-filled welding protection device for the stainless steel tube according to claim 2, wherein: the free end of the umbrella rib is provided with a rubber ring which is used for abutting against the inner wall of the welded pipeline.
4. The argon-filled welding protection device for the stainless steel tube according to claim 1, wherein: the diameter of the argon conveying pipeline is smaller than that of the welded pipeline.
5. The argon-filled welding protection device for the stainless steel tube according to claim 1, wherein: the first sealing plug and the second sealing plug comprise an inner layer, a middle layer and an outer layer, the inner layer is made of fireproof cloth, the middle layer is made of a steel plate, and the outer layer is made of a rubber panel.
6. The argon-filled welding protection device for the stainless steel tube according to claim 5, wherein: the middle layer is a fan-shaped 304 stainless steel plate with the thickness of 5 mm.
7. The argon-filled welding protection device for the stainless steel tube according to claim 1, wherein: the air inlet end of the argon conveying pipeline is provided with a throttling valve and a one-way valve, and the one-way valve and the throttling valve are sequentially located in the flow direction of the air flow.
8. The argon-filled welding protection device for the stainless steel tube according to claim 1, wherein: and two ends of the argon conveying pipeline are respectively connected with the first sealing plug and the second sealing plug in a buckling manner.
9. The argon-filled welding protection device for the stainless steel tube according to claim 1, wherein: and two ends of the argon conveying pipeline are respectively connected with the first sealing plug and the second sealing plug through a rotatable locking mechanism.
10. The argon-filled welding protection device for the stainless steel tube according to claim 1, wherein: the argon conveying pipeline is a stainless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020767236.9U CN212495908U (en) | 2020-05-11 | 2020-05-11 | Stainless steel pipe argon flushing welding protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020767236.9U CN212495908U (en) | 2020-05-11 | 2020-05-11 | Stainless steel pipe argon flushing welding protection device |
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| CN212495908U true CN212495908U (en) | 2021-02-09 |
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| CN202020767236.9U Active CN212495908U (en) | 2020-05-11 | 2020-05-11 | Stainless steel pipe argon flushing welding protection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523516A (en) * | 2021-06-28 | 2021-10-22 | 中核检修有限公司 | Pipeline welding protection air chamber device |
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2020
- 2020-05-11 CN CN202020767236.9U patent/CN212495908U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523516A (en) * | 2021-06-28 | 2021-10-22 | 中核检修有限公司 | Pipeline welding protection air chamber device |
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