CN216120791U - Seal welding ground wire and pipe end lap joint device - Google Patents
Seal welding ground wire and pipe end lap joint device Download PDFInfo
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- CN216120791U CN216120791U CN202122350166.4U CN202122350166U CN216120791U CN 216120791 U CN216120791 U CN 216120791U CN 202122350166 U CN202122350166 U CN 202122350166U CN 216120791 U CN216120791 U CN 216120791U
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Abstract
The utility model relates to a lap joint device of a seal welding ground wire and a pipe end, which comprises a copper circular ring sleeved outside the pipe end of a steel pipe, wherein the copper circular ring is fixed at the pipe end of the steel pipe through a first fixing element, and the inner wall of the copper circular ring and the outer wall of the pipe end of the steel pipe keep a fixed distance; a pair of copper wheels with V-shaped or U-shaped ring grooves are kept at two ends of a copper ring through the groove bottoms of the V-shaped or U-shaped ring grooves, the outer ends of the copper wheels are connected with a steel plate together, and the outer ends of the steel plate are grounded through a grounding wire. The welding grounding device is portable and movable, hard link is generated, electric arc scratch on the surface of the steel pipe is avoided, the welding grounding device has the advantages of being capable of being assembled and disassembled, convenient to operate, capable of achieving standardization, economy and safety and the like.
Description
Technical Field
The utility model relates to the technical field of welding devices, in particular to a lap joint device for a seal welding ground wire and a pipe end.
Background
The composite steel pipe is a kind of laminated metal composite pipe manufactured by adopting an inner expanding method, the inner expanding is usually carried out by adopting a hydraulic pressure mode, and when the hydraulic expanding is carried out, in order to prevent water from entering an interlayer, a welding mode is usually adopted to seal and weld the pipe end of the steel pipe. Before the welding, the steel pipe can the level be placed on the revolving stage, and when welder welded the pipe end, the steel pipe can horizontal rotation 360, and ordinary welding earthing device generally can press from both sides in the pipe end position or put on steel pipe upper portion, and during its steel pipe spin welding, ordinary welding earthing device can not satisfy the requirement.
The general clamping can influence welder's operation at pipe end position earthing device, and welder will change the clamping position every welding one section, and efficiency is very low, directly leads to the project cost, when welding small diameter steel pipe, has earthing device because of the pipe end position, leads to welder's sight to be obstructed, influences welding quality. The common grounding device arranged on the upper part of the steel pipe is not suitable at all, and the steel pipe can naturally fall off after rotating.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lap joint device for a seal welding ground wire and a pipe end, which mainly solves the problems in the prior art, realizes the portability and the mobility of a welding grounding device by adopting the lap joint device, generates rigid link, avoids the electric arc scratch on the surface of a steel pipe, has the advantages of combinable disassembly and assembly, convenience and operability and the like, and can realize standardization, economy and safety.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the utility model provides a seal ground wire and pipe end overlap joint device which characterized in that: the copper ring is fixed at the end of the steel pipe through a first fixing element, and the inner wall of the copper ring and the outer wall of the end of the steel pipe keep a fixed distance; a pair of copper wheels with V-shaped or U-shaped ring grooves are kept at two ends of a copper ring through the groove bottoms of the V-shaped or U-shaped ring grooves, the outer ends of the copper wheels are connected with a steel plate together, and the outer ends of the steel plate are grounded through a grounding wire.
Seal and weld ground wire and pipe end bridging device, its characterized in that: the first fixing element is a copper screw.
Seal and weld ground wire and pipe end bridging device, its characterized in that: the steel plate is connected with the outer end of the copper wheel through a second fixing element.
Seal and weld ground wire and pipe end bridging device, its characterized in that: the second fixing element is a copper screw.
Seal and weld ground wire and pipe end bridging device, its characterized in that: the copper circular ring is fixed outside the end of the steel pipe through four first fixing elements, and the distances between the adjacent first fixing elements are equal.
Compared with the prior art, the utility model has the following advantages:
1. when the welding head is used, a welder carries out one-time lap joint installation until the welding of a welding opening is finished, and the lap joint position of a sealing ground wire and a pipe end does not need to be changed.
2. When the steel pipe fixing device is used, the length of the first fixing element (namely the copper screw) can be changed, so that the steel pipe fixing device can be suitable for steel pipes with different diameters.
3. When the copper ring is used, the copper ring and the steel pipe are in rigid clamping connection by adopting the first fixing element (namely, the copper screw), so that electric arc scratches on the surface of the steel pipe are avoided.
4. When the utility model is used, the copper ring is fixed on the outer side of the steel pipe, so that a welder does not shield the sight line during welding operation, and the welding quality is guaranteed.
Drawings
FIG. 1 is a side view of the structure of the present invention.
Fig. 2 is a front view of the structure of the present invention.
In the figure: 1-ground; 2-a copper ring; 3-a copper wheel; 4-a first fixation element; 5-a steel plate; 6-a ground wire; 7-a steel pipe; 8-second fixing element.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 and 2, the utility model discloses a device for overlapping a seal welding ground wire and a pipe end. As shown in the figure: the device comprises a copper circular ring 2 sleeved outside the pipe end of a steel pipe 7, wherein the copper circular ring 2 is fixed at the pipe end of the steel pipe 7 through a first fixing element 4, and the inner wall of the copper circular ring 2 and the outer wall of the pipe end of the steel pipe 7 keep a fixed distance; a pair of copper wheels 3 with V-shaped or U-shaped ring grooves are held at two ends of a copper ring 2 through the groove bottoms of the V-shaped or U-shaped ring grooves, the outer ends of the copper wheels 3 are connected with a steel plate 5 together, and the outer ends of the steel plate 5 are grounded 1 through a grounding wire 6.
In the present invention, the first fixing element 4 is a copper screw.
In the present invention, the steel plate 5 is connected to the outer end of the copper wheel 3 by a second fixing element 8. The second fixing element 8 is a copper screw.
In the utility model, the copper circular ring 2 is fixed outside the end of the steel pipe 7 through four first fixing elements 4, and the distances between the adjacent first fixing elements 4 are equal. Of course, it is also possible to use three first fixing elements for fixing in an equally divided manner.
When the utility model is used, the copper circular ring 2 is fixed on the steel pipe 7 by adopting a copper screw, so that a rigid link is generated to conduct current, and the electric arc scratch generated on the surface of the steel pipe is avoided. The two copper wheels 3 are held at both ends of the copper ring 2 by the groove bottoms of the V-shaped or U-shaped ring grooves thereof, and the copper wheels 3 can be always held at the lower position even if the steel pipe 7 is rotated at the time of welding operation due to the gravity. Moreover, the device has the advantages of portability, detachability, convenient operation and the like, and can realize standardization, economy and safety in the welding process.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides a seal ground wire and pipe end overlap joint device which characterized in that: the device comprises a copper circular ring (2) sleeved outside the pipe end of a steel pipe (7), wherein the copper circular ring (2) is fixed at the pipe end of the steel pipe (7) through a first fixing element (4) and enables the inner wall of the copper circular ring (2) and the outer wall of the pipe end of the steel pipe (7) to keep a fixed distance; a pair of copper wheels (3) with V-shaped or U-shaped ring grooves are kept at two ends of a copper circular ring (2) through the groove bottoms of the V-shaped or U-shaped ring grooves, the outer ends of the copper wheels (3) are connected with a steel plate (5) together, and the outer ends of the steel plate (5) are grounded (1) through a grounding wire (6).
2. The seal ground and pipe end lap joint apparatus according to claim 1, wherein: the first fixing element (4) is a copper screw.
3. A seal ground wire and pipe end lap joint apparatus according to claim 1 or 2, wherein: the steel plate (5) is connected with the outer end of the copper wheel (3) through a second fixing element (8).
4. A seal ground and pipe end lap joint apparatus according to claim 3, wherein: the second fixing element (8) is a copper screw.
5. A seal ground wire and pipe end lap joint apparatus according to claim 1 or 2, wherein: the copper circular ring (2) is fixed outside the end of the steel pipe (7) through four first fixing elements (4), and the distances between the adjacent first fixing elements (4) are equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122350166.4U CN216120791U (en) | 2021-09-27 | 2021-09-27 | Seal welding ground wire and pipe end lap joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122350166.4U CN216120791U (en) | 2021-09-27 | 2021-09-27 | Seal welding ground wire and pipe end lap joint device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216120791U true CN216120791U (en) | 2022-03-22 |
Family
ID=80689192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122350166.4U Active CN216120791U (en) | 2021-09-27 | 2021-09-27 | Seal welding ground wire and pipe end lap joint device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216120791U (en) |
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2021
- 2021-09-27 CN CN202122350166.4U patent/CN216120791U/en active Active
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