CN202905959U - Fastening device of electric welding grounding clamp - Google Patents

Fastening device of electric welding grounding clamp Download PDF

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Publication number
CN202905959U
CN202905959U CN 201220543323 CN201220543323U CN202905959U CN 202905959 U CN202905959 U CN 202905959U CN 201220543323 CN201220543323 CN 201220543323 CN 201220543323 U CN201220543323 U CN 201220543323U CN 202905959 U CN202905959 U CN 202905959U
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CN
China
Prior art keywords
steel pipe
electric welding
pad
screws
plug
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.)
Active
Application number
CN 201220543323
Other languages
Chinese (zh)
Inventor
孙育文
刘美红
巩红雨
谷胜群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Petrochina Co Ltd
China Petroleum and Natural Gas Co Ltd
Original Assignee
China Petroleum and Natural Gas Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Petroleum and Natural Gas Co Ltd filed Critical China Petroleum and Natural Gas Co Ltd
Priority to CN 201220543323 priority Critical patent/CN202905959U/en
Application granted granted Critical
Publication of CN202905959U publication Critical patent/CN202905959U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A fastening device of an electric welding grounding clamp is applied to the electric welding construction, and is characterized in that one end of a steel pipe is welded with a bulkhead on which an outer screwed joint is fixed, and the outer end face of the outer screwed joint is welded with an earth wire plate; two parallel screw holes are arranged on the outer wall of the steel pipe, and screws are fixed in the two screw holes respectively; a cuboid-shaped pad is arranged in the steel pipe, and the end parts of the two screws are pressed at the upper part of the pad; a copper conducting wire penetrates from the other end of the steel pipe, and the end part of the copper conducting wire is arranged at the lower part of the pad. The effects of the utility model are that the fastening device of the electric welding grounding clamp can press the copper conducting wire tightly, does not happen an earth wire virtual connection phenomenon and enables the electric welding construction quality to be improved, so that workers do not need to adjust the earth wire frequently, and the construction efficiency is improved.

Description

Electric welding ground connection clamp fastener
Technical field
The utility model relates to electric welding equipment technology field, particularly a kind of electric welding ground connection clamp fastener.
Background technology
The fastener of the electric welding clamp in the various arc welding methods has important effect to the welding construction quality.Electrode arc welding SMAW is that the most square a kind of welding method is still used in development the earliest, at present in the various arc welding methods.SMAW equipment is simple, light, flexible operation, and the welding of the short seam in being applied to keep in repair and assemble particularly can be used for the welding at unapproachable position.In the oil gathering and transportation pipelines construction, adopt SMAW more than 95%, and welding tooling plays an important role to the welding construction quality.
In the pipeline welding process, often weld the defectives such as pore, slag inclusion, undercut.Weld defect tends to cause stress to concentrate, and reduces bearing capacity, reduction of service life, even cause brittle failure.Fastening in bad order in part because of the welding ground joint, there is the virtual connection situation, so that the electric welding machine ground wire causes damage in various degree, fracture has affected welding quality and manufacturing schedule.
The connected mode of welding ground joint in the past is that the copper cash of ground wire cable bare front end part is directly overlapped or is stuck on the ground wire-fork, contact insecure, have the virtual connection situation, the amount of heat that produces when welding can make the meeting quick aging of copper cash joint, fracture.Broken and to have reconnected, affected construction schedule, also wasted time and materials simultaneously.
The utility model content
The purpose of this utility model is: a kind of electric welding ground connection clamp fastener is provided, realizes that welding quality is up to standard, solve the present situation of cable and ground wire-fork loose contact.
The technical solution adopted in the utility model is: electric welding ground connection clamp fastener, comprise earth plate, male connection, plug, steel pipe, screw, pad and copper conductor, it is characterized in that: an end of steel pipe is welded with plug, plug is circular, there is internal thread hole at the center of plug, internal thread hole at plug is fixed with a male connection, and male connection is cylindrical, and external screw thread is arranged; Outer face in male connection is welded with earth plate; Wall at steel pipe has two screws side by side, and the center line of two screws is vertical with the center line of steel pipe; Be fixed with respectively a screw in two screws, the pad of a cuboid is arranged in the steel pipe, the end of two screws is pressed in the top of pad; Penetrate copper conductor from the other end of steel pipe, the end of copper conductor is in the bottom of pad.Screw screw, pad compresses copper conductor, can not produce ground wire virtual connection phenomenon.
The beneficial effects of the utility model: the utility model electric welding ground connection clamp fastener, can compress copper conductor, can not produce ground wire virtual connection phenomenon, improve the electric welding construction quality.Avoid the workman frequently to adjust ground wire, improve efficiency of construction.
Description of drawings
Fig. 1 is the utility model electric welding ground connection clamp fastener structural profile schematic diagram.
Fig. 2 is the vertical view of Fig. 1.
Among the figure, 1-earth plate, 2-male connection, 3-plug, 4-steel pipe, 5-screw, 6-pad, 7-copper conductor.
Embodiment
Embodiment 1: take an electric welding ground connection clamp fastener as example, the utility model is described in further detail.
Consult Fig. 1.The utility model electric welding ground connection clamp fastener comprises earth plate 1, male connection 2, plug 3, steel pipe 4, screw 5, pad 6 and copper conductor 7.
The length 200mm of steel pipe 4, internal diameter 50mm, an end of steel pipe 4 is welded with plug 3, plug 3 is circular, and there is the internal thread hole of a M20 at the center of plug 3, is fixed with the male connection 2 of a M20 at the internal thread hole of plug 3, male connection 2 is cylindrical, and external screw thread is arranged.Be welded with earth plate 1 in the outer face of male connection 2.Earth plate 1 is the steel plate of thickness 14mm.At the wall of steel pipe 4 screw of two M12 is side by side arranged, the center line of two screws is vertical with the center line of steel pipe 4.In two screws, be fixed with respectively a M12 screw 5, have the end of 6, two screws 5 of pad of a cuboid to be pressed in the top of pad 6 in the steel pipe 4.Penetrate the ground wire of copper conductor 7(electric welding machine from the other end of steel pipe 4), the end of copper conductor 7 is in the bottom of pad 6.Screw screw 5, pad 6 compresses copper conductor 7, can not produce ground wire virtual connection phenomenon.

Claims (1)

1. electric welding ground connection clamp fastener, comprise earth plate (1), male connection (2), plug (3), steel pipe (4), screw (5), pad (6) and copper conductor (7), it is characterized in that: an end of steel pipe (4) is welded with plug (3), plug (3) is circular, there is internal thread hole at the center of plug (3), internal thread hole at plug (3) is fixed with a male connection (2), male connection (2) is cylindrical, and external screw thread is arranged; Be welded with earth plate (1) in the outer face of male connection (2); Wall at steel pipe (4) has two screws side by side, and the center line of two screws is vertical with the center line of steel pipe (4); Be fixed with respectively a screw (5) in two screws, the pad (6) of a cuboid is arranged in the steel pipe (4), the end of two screws (5) is pressed in the top of pad (6); Penetrate copper conductor (7) from the other end of steel pipe (4), the end of copper conductor (7) is in the bottom of pad (6).
CN 201220543323 2012-10-23 2012-10-23 Fastening device of electric welding grounding clamp Active CN202905959U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220543323 CN202905959U (en) 2012-10-23 2012-10-23 Fastening device of electric welding grounding clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220543323 CN202905959U (en) 2012-10-23 2012-10-23 Fastening device of electric welding grounding clamp

Publications (1)

Publication Number Publication Date
CN202905959U true CN202905959U (en) 2013-04-24

Family

ID=48126587

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220543323 Active CN202905959U (en) 2012-10-23 2012-10-23 Fastening device of electric welding grounding clamp

Country Status (1)

Country Link
CN (1) CN202905959U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104139746A (en) * 2014-08-07 2014-11-12 马钢(集团)控股有限公司 Cable break prevention device for cable vehicle and using method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104139746A (en) * 2014-08-07 2014-11-12 马钢(集团)控股有限公司 Cable break prevention device for cable vehicle and using method thereof

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