An arc-shaped lock detection fixture

By designing a testing fixture for arc locks, using movable blocks and correction blocks to clamp the arc locks, and combining a probe and a digital display module, the problems of low efficiency and insufficient accuracy in the existing technology of arc lock testing are solved, achieving efficient and high-precision testing results.

CN224455779UActive Publication Date: 2026-07-03DONGGUAN HUAMI METAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN HUAMI METAL TECH CO LTD
Filing Date
2025-09-01
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing technologies for detecting arc locks have low efficiency and insufficient accuracy. General measuring tools are time-consuming, and customized templates are easily affected by wear and tear, resulting in poor repeatability.

Method used

A testing fixture for arc locks was designed, comprising a base plate, a test table, a calibration block, and a movable block. High-precision testing is achieved through the clamping between the movable block and the calibration block, combined with a probe and a digital display module, making it suitable for testing different models of arc locks.

Benefits of technology

It achieves efficient and high-precision arc lock detection, adapts to the detection needs of different models and sizes, and improves detection efficiency and accuracy.

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Abstract

This utility model discloses a testing fixture for arc-shaped locks, relating to the field of hardware parts testing technology. It includes a base plate on which a testing gauge, a calibration block, and a movable block are mounted. The testing gauge and calibration block are positioned opposite each other, and the movable block is positioned between them, capable of linear translation on the base plate. The testing gauge includes a probe. Moving the movable block away from the calibration block places the arc-shaped lock between the movable block and the calibration block. Simultaneously, the movable block pushes the probe, causing the testing gauge to read a value. By pushing the movable block, the arc-shaped lock is clamped between itself and the calibration block. At this point, the apex of the arc-shaped lock contacts the movable block, and both sides contact the edges of the calibration block, forming a fixed shape. Simultaneously, the probe follows and extends along the other side of the movable block. The testing gauge displays the movement value of the movable block, i.e., the arc height of the arc-shaped lock. By combining this with the length of the two points on the calibration block, the curvature of the arc-shaped lock can be calculated to determine if it meets the standard.
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