CN110280875A - Pipe fitting welding protective gas leak-proof device - Google Patents
Pipe fitting welding protective gas leak-proof device Download PDFInfo
- Publication number
- CN110280875A CN110280875A CN201910716685.2A CN201910716685A CN110280875A CN 110280875 A CN110280875 A CN 110280875A CN 201910716685 A CN201910716685 A CN 201910716685A CN 110280875 A CN110280875 A CN 110280875A
- Authority
- CN
- China
- Prior art keywords
- protective gas
- leakage
- proof
- pipe fitting
- gas leak
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 36
- 230000001681 protective effect Effects 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 239000004744 fabric Substances 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 21
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of pipe fitting welding protective gas leak-proof devices, it is characterized in that, including the leakage-proof component being arranged in weld-end fittings, the leakage-proof component includes bracket, sealing ring is arranged with outside the bracket, the sealing ring is bonded to form sealing structure with the inner wall of weld-end fittings, there is air-flow cavity in the bracket, the leakage-proof component is connected with flexible connecting member, the other end of the flexible connecting member is connect with another leakage-proof component, the airflow channel of sealing is formed between two leakage-proof components and weld-end fittings inner wall, the air-flow cavity air inlet of one leakage-proof component is flowed out by airflow channel from the air-flow cavity of another leakage-proof component.By the above-mentioned means, pipe fitting welding protective gas leak-proof device of the present invention, can effectively reduce waste of the protective gas in welding, the weld-end fittings suitable for a variety of different sizes.
Description
Technical field
The present invention relates to welding fields, more particularly to a kind of pipe fitting welding protective gas leak-proof device.
Background technique
When welded still pipe, especially stainless steel tube prevents welding region from aoxidizing, needs in steel pipe to guarantee welding quality
Inside is filled with inert protective gas, in the welding process, if welding region inert gas content is few, poor welding quality, if
A large amount of inert gas is filled in welding region, and it is serious to will lead to gas waste.
Currently, being mostly to cut out foam by hand to block to welded tube both ends when domestic welded still pipe, it is tight that this mode wastes gas
Weight.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of pipe fitting welding protective gas leak-proof devices, can effectively subtract
Waste of few protective gas in welding, the weld-end fittings suitable for a variety of different sizes.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of pipe fitting welding protection gas is provided
Body leak-proof device, including the leakage-proof component being arranged in weld-end fittings, the leakage-proof component includes bracket, is arranged outside the bracket
There is sealing ring, the sealing ring is bonded to form sealing structure with the inner wall of weld-end fittings, has air-flow cavity, institute in the bracket
It states leakage-proof component to be connected with flexible connecting member, the other end of the flexible connecting member is connect with another leakage-proof component, two institutes
The airflow channel that sealing is formed between leakage-proof component and weld-end fittings inner wall is stated, the air-flow cavity air inlet of a leakage-proof component is logical
Airflow channel is crossed to flow out from the air-flow cavity of another leakage-proof component.
In a preferred embodiment of the present invention, there are outwardly extending multiple lug bosses on the sealing ring, it is described convex
The portion of rising contacts fitting with the inner wall of weld-end fittings.
In a preferred embodiment of the present invention, the outer wall of the bracket is equipped with mounting groove, and the sealing ring is set in
In mounting groove.
In a preferred embodiment of the present invention, described bracket one end begins with air inlet, and the other end offers venthole,
The internal stent has cavity, and connection forms air-flow cavity between the air inlet, cavity and venthole.
In a preferred embodiment of the present invention, vent board, the ventilation are also connected on the right side of the venthole of the bracket
Multiple ventholes are offered on plate, the venthole is evenly distributed on vent board.
In a preferred embodiment of the present invention, the vent board is equipped with the connecting column of protrusion, and the connecting column passes through
Attaching nut is connected with flexible connecting member, and the vent board is rack-mount by fixing bolt.
In a preferred embodiment of the present invention, there is a step structure, the step structure is embedded in the venthole
Equipped with air screen.
In a preferred embodiment of the present invention, the flexible connecting member be flexible connecting member, chain, cloth live line rope,
Warning Mark is additionally provided on the flexible connecting member.
In a preferred embodiment of the present invention, the weld-end fittings is linear type welded still pipe, the linear type welding
Steel pipe connect to form linear sealing airflow channel with another linear type welded still pipe.
In a preferred embodiment of the present invention, the weld-end fittings is the sweeping welded still pipe in front end, the weldering
It connects steel pipe and connect the sealing airflow channel to form syphon shape with another welded still pipe.
The beneficial effects of the present invention are: pipe fitting welding protective gas leak-proof device of the present invention, can effectively reduce protection gas
Waste of the body in welding, the weld-end fittings suitable for a variety of different sizes.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the structural schematic diagram of one preferred embodiment of pipe fitting welding protective gas leak-proof device of the present invention；
Fig. 2 is the partial structural diagram of Fig. 1；
Fig. 3 is the partial structural diagram of Fig. 1；
Fig. 4 is the structural schematic diagram of pipe fitting welding protective gas leak-proof device another preferred embodiment；
The components in the drawings are labeled as follows: 1, weld-end fittings, 11, airflow channel, 2, leakage-proof component, 21, bracket, 211, installation
Slot, 212, vent board, 213, venthole, 214, connecting column, 215, fixing bolt, 216, step structure, 217, air screen, 22,
Sealing ring, 221, lug boss, 23, air-flow cavity, 231, air inlet, 232, venthole, 233, cavity, 3, flexible connecting member, 4,
Attaching nut, 5, Warning Mark, 6, pull rod.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Referring to Fig. 1, a kind of pipe fitting welding protective gas leak-proof device, including the leakproof group being arranged in weld-end fittings 1
Part 2, leakage-proof component 2 include bracket 21, are arranged with sealing ring 22 outside bracket 21, sealing ring 22 is bonded with the inner wall of weld-end fittings 1
Sealing structure is formed, there is air-flow cavity 23 in bracket 21, leakage-proof component 2 is connected with flexible connecting member 3, flexible connecting member 3
The other end connect with another leakage-proof component 2, the air-flow of sealing is formed between 1 inner wall of two leakage-proof components 2 and weld-end fittings
23 air inlet of air-flow cavity in channel 11, a leakage-proof component 2 passes through air-flow cavity 23 of the airflow channel 11 from another leakage-proof component 2
Outflow.
In addition, having outwardly extending multiple lug bosses 221, the inner wall of lug boss 221 and weld-end fittings 1 on sealing ring 22
Contact fitting, the position cross section that lug boss 221 is contacted with 1 inner wall of weld-end fittings are triangle.
In addition, the outer wall of bracket 21 is equipped with mounting groove 211, sealing ring 2 is set in mounting groove 221.
In addition, 21 one end of bracket begins with air inlet 231, the other end offers venthole 232, has sky inside bracket 21
Chamber 233, connection forms air-flow cavity 23, the air inlet 231 1 of bracket 21 between air inlet 231, cavity 233 and venthole 232
End is also connected with pull rod 7.
In addition, being also connected with vent board 212 on the right side of the venthole of bracket 21, multiple ventholes are offered on vent board 212
213, venthole 213 is evenly distributed on vent board 212.
In addition, vent board 212 is equipped with the connecting column 214 of protrusion, connecting column 214 passes through attaching nut 4 and flexible connection
Part 3 is connected, and vent board 212 is installed on the stent 21 by fixing bolt 215.
In addition, having a step structure 216 in venthole 232, air screen 217 is embedded in step structure 216.
In addition, flexible connecting member 3 is flexible connecting member, chain, cloth live line rope, indicateing arm is additionally provided on flexible connecting member
Will 5, Warning Mark 5 are located at the middle part of flexible connecting member 3.
In addition, weld-end fittings 1 is linear type welded still pipe, linear type welded still pipe is connect with another linear type welded still pipe
Form linear sealing airflow channel.
The specific working principle is as follows for pipe fitting welding protective gas leak-proof device of the present invention: two leakage-proof components 2 are set respectively
It sets in two welded still pipes 1, is then connected between leakage-proof component 2 by flexible connecting member 3, then need two welded still pipes
The end to be welded is correspondingly connected with, and then Xiang Yigen welded still pipe is passed through protective gas, and protective gas passes through in the welded still pipe
Bracket 21 231 air inlet of air inlet from 232 outlet of venthole, from 212 row of vent board after then being filtered by air screen 217
Out, gas then passes through after airflow channel 11 from 2 outlet of leakage-proof component in another welded still pipe, and gas flow direction is as schemed
Show, with the protective gas content in two air-breathers of lasting holding and adapter tube compositing area to be welded.
Embodiment 2, referring to Fig. 4, weld-end fittings is the sweeping welded still pipe in front end, welded still pipe and another welding
Steel pipe connects the sealing airflow channel to form syphon shape.Remaining is the same as embodiment 1.
It is different from the prior art, pipe fitting welding protective gas leak-proof device of the present invention can effectively reduce protective gas and exist
Waste when welding, the weld-end fittings suitable for a variety of different sizes.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of pipe fitting welding protective gas leak-proof device, which is characterized in that including the leakage-proof component being arranged in weld-end fittings,
The leakage-proof component includes bracket, is arranged with sealing ring outside the bracket, the sealing ring is bonded shape with the inner wall of weld-end fittings
At sealing structure, there is air-flow cavity in the bracket, the leakage-proof component is connected with flexible connecting member, the flexible connection
The other end of part is connect with another leakage-proof component, and the gas of sealing is formed between two leakage-proof components and weld-end fittings inner wall
The air-flow cavity air inlet of circulation road, a leakage-proof component is flowed out by airflow channel from the air-flow cavity of another leakage-proof component.
2. pipe fitting welding protective gas leak-proof device according to claim 1, which is characterized in that have on the sealing ring
Outwardly extending multiple lug bosses, the lug boss contact fitting with the inner wall of weld-end fittings.
3. pipe fitting welding protective gas leak-proof device according to claim 2, which is characterized in that on the outer wall of the bracket
Equipped with mounting groove, the sealing ring is set in mounting groove.
4. pipe fitting welding protective gas leak-proof device according to claim 1, which is characterized in that described bracket one end starts
There is air inlet, the other end offers venthole, and the internal stent has cavity, between the air inlet, cavity and venthole
Connection forms air-flow cavity.
5. pipe fitting welding protective gas leak-proof device according to claim 4, which is characterized in that the venthole of the bracket
Right side is also connected with vent board, and multiple ventholes are offered on the vent board, and the venthole is evenly distributed on vent board.
6. pipe fitting welding protective gas leak-proof device according to claim 5, which is characterized in that the vent board is equipped with
The connecting column of protrusion, the connecting column are connected by attaching nut with flexible connecting member, and the vent board passes through fixing bolt
It is rack-mount.
7. according to any pipe fitting welding protective gas leak-proof device of claim 6, which is characterized in that in the venthole
With a step structure, air screen is embedded in the step structure.
8. -7 any pipe fitting welding protective gas leak-proof device according to claim 1, which is characterized in that the flexibility is even
Fitting is flexible connecting member, chain, cloth live line rope, is additionally provided with Warning Mark on the flexible connecting member.
9. pipe fitting welding protective gas leak-proof device according to claim 8, which is characterized in that the weld-end fittings is straight
Line style welded still pipe, the linear type welded still pipe connect to form linear blanket gas circulation with another linear type welded still pipe
Road.
10. pipe fitting welding protective gas leak-proof device according to claim 8, which is characterized in that the weld-end fittings is
The sweeping welded still pipe in front end, the welded still pipe connect the blanket gas circulation to form syphon shape with another welded still pipe
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716685.2A CN110280875A (en) | 2019-08-05 | 2019-08-05 | Pipe fitting welding protective gas leak-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716685.2A CN110280875A (en) | 2019-08-05 | 2019-08-05 | Pipe fitting welding protective gas leak-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110280875A true CN110280875A (en) | 2019-09-27 |
Family
ID=68024816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910716685.2A Pending CN110280875A (en) | 2019-08-05 | 2019-08-05 | Pipe fitting welding protective gas leak-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110280875A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605505A (en) * | 2020-11-30 | 2021-04-06 | 成都飞机工业（集团）有限责任公司 | Welding gas protection and air pressure regulation and control device for inner wall of pipe |
| CN117506256A (en) * | 2023-12-22 | 2024-02-06 | 山东恒辉节能技术集团有限公司 | welding device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007190595A (en) * | 2006-01-20 | 2007-08-02 | Nisshin Steel Co Ltd | Inner-surface shield tool for manufacturing welded metal pipe |
| WO2011085876A1 (en) * | 2009-12-21 | 2011-07-21 | Alguen Osman | Sealing device for forming a protective gas chamber |
| EP2647468A1 (en) * | 2012-04-05 | 2013-10-09 | Linde Aktiengesellschaft | Gas emitting device for internal pipe sections with at least one gas nozzle arrangement ; welding method using such gas emitting device |
| CN203956307U (en) * | 2014-07-31 | 2014-11-26 | 陕西建工第十一建设集团有限公司 | A kind of pipeline welding gas shield device |
| CN207656056U (en) * | 2017-12-20 | 2018-07-27 | 液化空气（中国）研发有限公司 | A kind of gas shield device for pipeline welding |
| CN207840375U (en) * | 2018-01-29 | 2018-09-11 | 昆山华恒焊接股份有限公司 | Pipe fitting welding carries on the back protective device |
| CN207914757U (en) * | 2018-03-06 | 2018-09-28 | 兰州兰石重型装备股份有限公司 | The local argon protective device of pipeline welding |
| CN210498752U (en) * | 2019-08-05 | 2020-05-12 | 江苏电力装备有限公司 | Protective gas leakage-proof device for pipe welding |
-
2019
- 2019-08-05 CN CN201910716685.2A patent/CN110280875A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007190595A (en) * | 2006-01-20 | 2007-08-02 | Nisshin Steel Co Ltd | Inner-surface shield tool for manufacturing welded metal pipe |
| WO2011085876A1 (en) * | 2009-12-21 | 2011-07-21 | Alguen Osman | Sealing device for forming a protective gas chamber |
| EP2647468A1 (en) * | 2012-04-05 | 2013-10-09 | Linde Aktiengesellschaft | Gas emitting device for internal pipe sections with at least one gas nozzle arrangement ; welding method using such gas emitting device |
| CN203956307U (en) * | 2014-07-31 | 2014-11-26 | 陕西建工第十一建设集团有限公司 | A kind of pipeline welding gas shield device |
| CN207656056U (en) * | 2017-12-20 | 2018-07-27 | 液化空气（中国）研发有限公司 | A kind of gas shield device for pipeline welding |
| CN207840375U (en) * | 2018-01-29 | 2018-09-11 | 昆山华恒焊接股份有限公司 | Pipe fitting welding carries on the back protective device |
| CN207914757U (en) * | 2018-03-06 | 2018-09-28 | 兰州兰石重型装备股份有限公司 | The local argon protective device of pipeline welding |
| CN210498752U (en) * | 2019-08-05 | 2020-05-12 | 江苏电力装备有限公司 | Protective gas leakage-proof device for pipe welding |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605505A (en) * | 2020-11-30 | 2021-04-06 | 成都飞机工业（集团）有限责任公司 | Welding gas protection and air pressure regulation and control device for inner wall of pipe |
| CN117506256A (en) * | 2023-12-22 | 2024-02-06 | 山东恒辉节能技术集团有限公司 | welding device |
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