A kind of scraping groove structure for weld seam inside steel pipe

By designing the coordination between the arm seat, the pressing arm and the scraping cutter head in the weld groove structure in the steel pipe, the swing of the elastic support component and the pressing arm are used to buffer the force under the scraping cutter head during the scraping groove process, the problem of poor durability of the scraping cutter head is solved, and the durability of the scraping cutter head is significantly improved.

CN222725634UActive Publication Date: 2025-04-08JUYI STEELPIPE CO LTD
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Patent Information

Application Number
CN202420973083.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-07
Publication Date
2025-04-08
Estimated Expiration
2034-05-07

AI Technical Summary

Technical Problem

In the existing steel pipe inner weld groove scraping structure, the scratch groove cutting head is easily damaged due to the force generated during the scratching process, and has poor durability.

Method used

A steel pipe inner weld scraping groove structure is designed, through the coordination between the arm seat, the pressing arm and the scraping groove cutting head, the elastic support component is used to support the scraping groove cutting head, and the force exposed by the scraping groove cutting head during the scraping groove cutting process is buffered through the swing of the pressing arm.

Benefits of technology

It effectively improves the durability of the groove cutting head. Through the cooperation of the elastic support assembly and the elastic pressing arm, the force endured by the groove cutting head during the scratching process is extended, and the service life of the groove cutting head is extended.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses a weld scraping structure in a steel pipe, including an arm-mounting seat, a spring-pressing arm and a scraping blade head. The arm-mounting seat is formed with two arm-mounting plates arranged opposite to each other, and the two ends of each arm-mounting plate are an arm-mounting end and a spring-pressing end. The arm-mounting plate is provided with a hinge opening at its arm-mounting end, and the two arm-mounting plates are horizontally connected with a bottom plate at the bottom of their spring-pressing ends; the spring-pressing arm is formed with two swing arm plates arranged opposite to each other and a spring-pressing cover cylinder connected to one end of the two swing arm plates, and the two swing arm plates are provided with a shaft-mounting cylinder corresponding to the hinge opening at the other end thereof and a guide roller rotatably provided between the two ends, so that the hinge axis can pass through the shaft-mounting cylinder and the hinge opening of the arm-mounting seat, and the spring-pressing arm can be swingably arranged in the arm-mounting seat; the spring-pressing cover cylinder is provided with an elastic support component therein, and the scraping blade head can be lifted and lowered and arranged at the top of the spring-pressing cover cylinder, and the elastic support component supports the scraping blade head. The utility model can buffer the force exerted on the scraping blade head during the scraping process by the elastic support component.
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