CN204148733U - A kind of local argon-filled protection device for pipeline welding - Google Patents
A kind of local argon-filled protection device for pipeline welding Download PDFInfo
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- CN204148733U CN204148733U CN201420459901.2U CN201420459901U CN204148733U CN 204148733 U CN204148733 U CN 204148733U CN 201420459901 U CN201420459901 U CN 201420459901U CN 204148733 U CN204148733 U CN 204148733U
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Abstract
The utility model discloses a kind of local argon-filled protection device for pipeline welding, comprise screw rod, movable disk, connecting rod and sealing plate, the two ends, left and right of screw rod are respectively equipped with plus thread and left-hand thread, plus thread on screw rod and left-hand thread part are respectively equipped with a movable disk, two movable disk respectively by the centre bore on it with just, left-hand thread part spins, screw rod between two movable disk is arranged with a sealing plate, described sealing plate seals by the arc that some pieces of longitudinal sections are U-shaped the loop configuration that frid is spliced into, connected by flexible link belt between the lateral wall of adjacent seals frid, two described movable disk connect respectively by some connecting rods are corresponding with the two side of sealing plate, and the two ends of connecting rod are articulated and connected with movable disk and sealing plate respectively.The utility model can effectively improve argon filling quality, and greatly reduces the charge of argon gas, has significant raising to final welding quality.
Description
Technical field
The utility model belongs to pipeline welding technical field, particularly relates to a kind of local argon-filled protection device for pipeline welding.
Background technology
In petrochemical industry, power engineering construction process; between high alloy steel pipe, multiple tube when welding; often need butt welded seam back side argon-filled protection; in case oxidation, especially the pipeline of nickel-base alloy material is when welding, and requires that the argon content of back of weld must reach more than 99.9%; but; at present when welding, being difficult to reach this requirement, welding quality can not be ensured.And present stage is in pipeline welding field, no matter pipeline how long, caliber is much, all adopts homogeneous tube argon-filled protection, uses the water soluble paper, plank, adhesive tape etc. to close critical point.This not only needs the long period just can complete the displacement of inner air tube, wastes a large amount of argon gas, and meanwhile, the stability of protection and the more difficult control of quality, the difficult quality of weld seam is guaranteed.
Summary of the invention
In order to solve problems of the prior art, the purpose of this utility model is to provide a kind of local argon-filled protection device for pipeline welding, effectively can reduce the charge of argon gas during pipeline welding, and greatly can improve welding quality.
A kind of local argon-filled protection device for pipeline welding, comprise screw rod, movable disk, connecting rod and sealing plate, the two ends, left and right of screw rod are respectively equipped with plus thread and left-hand thread, plus thread on screw rod and left-hand thread part are respectively equipped with a movable disk, two movable disk respectively by the centre bore on it with just, left-hand thread part spins, screw rod between two movable disk is arranged with a sealing plate, described sealing plate seals by the arc that some pieces of longitudinal sections are U-shaped the loop configuration that frid is spliced into, connected by flexible link belt between the lateral wall of adjacent seals frid, two described movable disk connect respectively by some connecting rods are corresponding with the two side of sealing plate, and the two ends of connecting rod are articulated and connected with movable disk and sealing plate respectively.
Further, be arranged with C-shaped Argon pipe in the cannelure of described sealing plate, the two-port of Argon pipe is closed, and along the circumferential direction uniformly on the sidewall of Argon pipe offers some argon blowing holes.
Further, the sidewall of described Argon pipe also offers air admission hole.
Further, be also provided with catch in the inner side of the stitching portion of adjacent seals frid, catch is corresponding with described connecting band, and one end of catch is fixedly connected with on the madial wall of frid sealing together wherein.
Further, the shape of described catch is consistent with the shape of sealing frid sidewall.
Owing to adopting technique scheme, the utility model has following superiority:
The utility model in use, sealing plate is inserted and needs in two pipelines of butt welding, and make the corresponding weld seam of the cannelure of sealing plate, by the rotation of screw rod, sealing plate is opened and realize close contact with inner-walls of duct, thus the local space making the cannelure of sealing plate and pipeline encircle a city is in approximate closed, local argon filling is being carried out by Argon pipe connection argon bottle, can effectively improve argon filling quality, and greatly reduce the charge of argon gas, there is significant raising to final welding quality.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of Argon pipe;
In figure: 1-screw rod; 2-plus thread; 3-movable disk; 4-connecting rod; 5-sealing plate; 6-Argon pipe; 7-left-hand thread; 8-catch; 9-connecting band; 10-argon blowing hole.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, a kind of local argon-filled protection device for pipeline welding, comprise screw rod 1, movable disk 3, connecting rod 4 and sealing plate 5, the two ends, left and right of screw rod 1 are respectively equipped with plus thread 2 and left-hand thread 7, plus thread on screw rod and left-hand thread part are respectively equipped with a movable disk 3, two movable disk 3 respectively by the centre bore on it with just, left-hand thread part spins, screw rod between two movable disk is arranged with a sealing plate 5, described sealing plate 5 seals by the arc that some pieces of longitudinal sections are U-shaped the loop configuration that frid is spliced into, connected by flexible link belt 9 between the lateral wall of adjacent seals frid, two described movable disk 3 connect respectively by some connecting rods 4 are corresponding with the two side of sealing plate 5, and the two ends of connecting rod are articulated and connected with movable disk and sealing plate respectively.
As shown in Figure 2, be arranged with C-shaped Argon pipe 6 in the cannelure of described sealing plate 5, the two-port of Argon pipe 6 is closed, and along the circumferential direction uniformly on the sidewall of Argon pipe offers some argon blowing holes 10.Described Argon pipe can adopt resistant to elevated temperatures elastic metallic material to make, as copper material; In addition, the sidewall of Argon pipe also offers air admission hole, this air admission hole is for connecting air inlet pipe on argon bottle in order to pass into argon gas.
In order to prevent weld time connecting band by high temperature failure, resistant to elevated temperatures metal catch 8 is also provided with in the inner side of the stitching portion of adjacent seals frid, catch is corresponding with described connecting band, and one end of catch is fixedly connected with on the madial wall of frid sealing together wherein; The shape of described catch is consistent with the shape of sealing frid sidewall.
The utility model is when embody rule, Argon pipe is connected with the air inlet pipe of argon bottle by the air admission hole on it, the utility model is put into the commissure of two pipelines needing butt welding, make the positive butt welded seam of the cannelure of sealing plate, screw rod is parallel with the axial direction of pipeline, then rotary screw, two ends due to screw rod are just respectively arranged with, left-hand thread, therefore, two movable disk all move to sealing plate, under the effect of connecting rod, sealing plate is softened, make sealing plate and inner-walls of duct close contact, and owing to being connected with connecting band between adjacent seals frid, therefore, by sealing frid, the space that the tube wall of connecting band and pipeline surrounds is approximate in closed, then by passing into argon gas in Argon pipe, Argon pipe starts to rush argon to the space of commissure by the argon blowing hole on it, after rushing argon, carry out welding, in order to prevent connecting band by high temperature failure in welding process, the madial wall of sealing frid arranges resistant to elevated temperatures metal catch, catch and connecting band are just right, and metal catch makes the arcuate structure identical with sealing frid sidewall, it is a little longer that catch can do, so just sealing plate catch when strutting can be blocked to the interval between adjacent seals frid, prevent from affecting sealing effectiveness, after welding completes, reversion screw rod, two movable disk are all away from sealing plate, under the effect of connecting rod, sealing plate closes and is separated with pipe wall, then by being connected to connecting rope of the present utility model in advance, the utility model being pulled out in pipeline, namely can be used for the argon-filled protection that other needs the pipeline of butt welding.
Wherein, connecting rod and being articulated and connected between movable disk and sealing plate, following structure can be adopted: weld a bolt in movable disk respectively with on sealing plate, weld the nut suitable with described bolt respectively at the both ends of connecting rod, coordinate that to realize between connecting rod and movable disk, sealing plate hinged by spinning of bolts and nuts.
In addition, for the ease of rotating screw bolt, the end of screw rod can be set to and at least there is the structure that two correspondences screw plane; And the end of screw rod can be connected one can the driving mechanism that rotates and reverse of drive screw, and described driving mechanism can adopt motor etc.
Claims (5)
1. the local argon-filled protection device for pipeline welding, it is characterized in that: comprise screw rod (1), movable disk (3), connecting rod (4) and sealing plate (5), the two ends, left and right of screw rod are respectively equipped with plus thread (2) and left-hand thread (7), plus thread on screw rod and left-hand thread part are respectively equipped with a movable disk, two movable disk respectively by the centre bore on it with just, left-hand thread part spins, screw rod between two movable disk (3) is arranged with a sealing plate (5), described sealing plate seals by the arc that some pieces of longitudinal sections are U-shaped the loop configuration that frid is spliced into, connected by flexible link belt (9) between the lateral wall of adjacent seals frid, described two movable disk (3) connect respectively by some connecting rods (4) are corresponding with the two side of sealing plate, and the two ends of connecting rod are articulated and connected with movable disk and sealing plate respectively.
2. the local argon-filled protection device for pipeline welding according to claim 1; it is characterized in that: in the cannelure of described sealing plate (5), be arranged with C-shaped Argon pipe (6); the two-port of Argon pipe is closed, and along the circumferential direction uniformly on the sidewall of Argon pipe offers some argon blowing holes (10).
3. the local argon-filled protection device for pipeline welding according to claim 2, is characterized in that: the sidewall of described Argon pipe (6) also offers air admission hole.
4. the local argon-filled protection device for pipeline welding according to claim 1; it is characterized in that: be also provided with catch (8) in the inner side of the stitching portion of adjacent seals frid; catch is corresponding with described connecting band (9), and one end of catch is fixedly connected with on the madial wall of frid sealing together wherein.
5. the local argon-filled protection device for pipeline welding according to claim 4, is characterized in that: the shape of described catch (8) is consistent with the shape of sealing frid sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420459901.2U CN204148733U (en) | 2014-08-15 | 2014-08-15 | A kind of local argon-filled protection device for pipeline welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420459901.2U CN204148733U (en) | 2014-08-15 | 2014-08-15 | A kind of local argon-filled protection device for pipeline welding |
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| Publication Number | Publication Date |
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| CN204148733U true CN204148733U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420459901.2U Active CN204148733U (en) | 2014-08-15 | 2014-08-15 | A kind of local argon-filled protection device for pipeline welding |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195935A (en) * | 2015-10-20 | 2015-12-30 | 南京奥特电气股份有限公司 | Flexible gas protection device for pipeline welding |
| CN106393510A (en) * | 2016-11-17 | 2017-02-15 | 杭州利安玻璃钢有限公司 | Adjustable pipeline molding die |
| CN108213787A (en) * | 2017-12-20 | 2018-06-29 | 中冶天工集团有限公司 | One kind welds argon filling sealing device for stainless steel pipes |
| CN108723554A (en) * | 2018-05-22 | 2018-11-02 | 中国石油天然气第建设有限公司 | A kind of efficient low-consume inner protection device for pipeline welding |
| CN109590588A (en) * | 2019-01-22 | 2019-04-09 | 天津市管道工程集团有限公司 | The weld joint protective device of anti-argon gas leakage |
-
2014
- 2014-08-15 CN CN201420459901.2U patent/CN204148733U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195935A (en) * | 2015-10-20 | 2015-12-30 | 南京奥特电气股份有限公司 | Flexible gas protection device for pipeline welding |
| CN106393510A (en) * | 2016-11-17 | 2017-02-15 | 杭州利安玻璃钢有限公司 | Adjustable pipeline molding die |
| CN108213787A (en) * | 2017-12-20 | 2018-06-29 | 中冶天工集团有限公司 | One kind welds argon filling sealing device for stainless steel pipes |
| CN108213787B (en) * | 2017-12-20 | 2020-06-02 | 中冶天工集团有限公司 | Argon filling sealing device for stainless steel pipeline welding |
| CN108723554A (en) * | 2018-05-22 | 2018-11-02 | 中国石油天然气第建设有限公司 | A kind of efficient low-consume inner protection device for pipeline welding |
| CN109590588A (en) * | 2019-01-22 | 2019-04-09 | 天津市管道工程集团有限公司 | The weld joint protective device of anti-argon gas leakage |
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