Portable handheld comprehensive measuring tool for measuring outer diameter of seamless steel pipe

By designing a convenient handheld comprehensive measuring tool for the outer diameter of seamless steel pipes, and utilizing structures such as a fixed frame and guide columns, the problems of low measurement efficiency and large errors in existing technologies are solved, enabling fast and accurate measurement of the outer diameter of seamless steel pipes, which is suitable for various environments.

CN224246938UActive Publication Date: 2026-05-15TIANJIN STEEL PIPE MFG CO LTD
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Patent Information

Application Number
CN202520978245.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2026-05-15
Estimated Expiration
2035-05-19

AI Technical Summary

Technical Problem

Existing technologies for measuring the outer diameter of seamless steel pipes suffer from low efficiency, large errors, and expensive and portable equipment, making it difficult to meet the measurement needs of construction sites.

Method used

A convenient handheld comprehensive measuring tool for the outer diameter of seamless steel pipes was designed, including a fixed frame, support rod, roller, guide column, compression spring and oil-based pen. Through stable support and guiding mechanism, continuous and accurate outer diameter measurement can be achieved, and diameter changes can be recorded by oil-based pen and pointer, simplifying data processing.

Benefits of technology

It enables rapid and accurate measurement of the maximum, minimum, and average diameter of seamless steel pipes under different environments, improving the convenience and accuracy of measurement and reducing errors from manual calculation.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to the technical field of measuring tools, in particular to a convenient handheld seamless steel tube outer diameter comprehensive measuring tool. The device comprises a fixing frame, supporting rods are symmetrically arranged on the inner walls of the two sides of the fixing frame, a supporting wheel is arranged at the top of each supporting rod, a pair of sliding sleeves are symmetrically arranged at the top of the fixing frame, a measuring auxiliary assembly is movably arranged at the top of the fixing frame, and a detachable acrylic transparent plate is arranged on the measuring auxiliary assembly. A stable supporting structure is provided for the device through the supporting rods on the inner walls of the two sides of the fixing frame and the top riding wheels, it is ensured that the device cannot shake or deviate in the measuring process, meanwhile, the bottom of the bolt is tightly attached to the top of the outer wall of the seamless steel pipe all the time under the continuous action of the extrusion spring, and even if the surface of the steel pipe is uneven, the device cannot be damaged. And the continuity and the accuracy of measurement can be ensured, and measurement errors caused by untight attachment are avoided.
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