Inner hole annular groove detection auxiliary tool

By designing an auxiliary tool for detecting annular grooves in internal holes, and utilizing a combination of a weight and a side rod, the tool automatically contacts the inner diameter of the annular groove and combines this with depth measurement using a vernier caliper. This solves the problem of difficulty in detecting the diameter of annular grooves in existing technologies and achieves precise dimensional control.

CN224353750UActive Publication Date: 2026-06-12JIANGLU MACHINERY & ELECTRONICS GROUP
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGLU MACHINERY & ELECTRONICS GROUP
Filing Date
2025-06-26
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

Existing standard measuring tools are insufficient to accurately measure the diameter of the inner annular groove, leading to improper assembly of retaining rings or sealing rings, affecting the assembly effect or causing damage to parts.

⚗Method used

Design an auxiliary tool for detecting annular grooves in internal holes, including a weight, a side rod, a support rod, and a locking screw. The weight causes the side rod to automatically contact the inner diameter surface of the annular groove. The extension length of the side rod is measured by a depth vernier caliper to calculate the diameter of the annular groove.

🎯Benefits of technology

It enables a simple and convenient way to check the diameter of the inner annular groove, ensuring the correct assembly of retaining rings or sealing rings and avoiding damage to components.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The utility model discloses a kind of inner hole annular groove detection auxiliary, including weight, side head pole, support rod, locking screw rod, the support rod is horizontally arranged, and the vertical through-hole of left side support rod is arranged, the side head pole is vertically inserted in through-hole, and weight is fixedly arranged on side head pole top, the axial installation hole of support rod middle is arranged, installation hole extends from the right end of support rod to communicate with through-hole, inner thread is arranged on the left side hole wall of installation hole, and locking screw rod is installed in installation hole.The utility model uses gravity sagging effect to make side head pole automatic contact annular groove inner diameter surface, after using depth vernier caliper to detect side head pole extension length, inner hole annular groove diameter size can be calculated, simple structure, convenient operation, good manufacturing technology.
Need to check novelty before this filing date? Find Prior Art