Nut facilitating observation of loosening

By setting hidden grooves, observation windows, scribing auxiliary rods, and comparison plates on the nuts, combined with slots and marking cards, the problem of traditional nuts being unable to conveniently determine looseness is solved, achieving convenient and accurate looseness detection and ensuring the stability of the equipment.

CN224515624UActive Publication Date: 2026-07-17JIANGSU DONGRUI AEROSPACE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU DONGRUI AEROSPACE TECH CO LTD
Filing Date
2025-06-06
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional nuts cannot easily determine the degree of looseness, which may cause fasteners to miss the optimal time for tightening and repair, resulting in loosening and damage.

Method used

A nut was designed, comprising a hidden groove, an observation window, a scribing auxiliary rod, and a comparison plate. Lines are scribed on the bolt through the observation window and the scribing auxiliary rod, and looseness is detected using the scale strips on the comparison plate. Marking and observation are performed using the slot and marking card.

Benefits of technology

It enables convenient and accurate observation of nut loosening, ensuring timely tightening and repair, improving the accuracy and convenience of testing, and ensuring equipment stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224515624U_ABST
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Abstract

The utility model discloses a nut convenient to observation loosening condition relates to nut technical field, the utility model discloses a nut body and nut thread, the surface of nut body is provided with hidden groove, and the middle part of hidden groove is provided with observation window, the inside fixed of observation window has the line auxiliary rod, and the middle part of line auxiliary rod is provided with the groove -like structure, the front surface middle part of hidden groove is fixed with contrast board, and is fixedly connected with the front end of line auxiliary rod, the utility model discloses can be convenient to the loosening detection of nut with its inside bolt to can be more obvious observation the loosening distance of nut to the operation personnel carries out the fastening repair in time conveniently.
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Claims

1. A nut facilitating observation of loosening, characterized by: Includes the nut body (1) and the nut thread (2); The surface of the nut body (1) is provided with a hidden groove (8), and an observation window (7) is provided in the middle of the hidden groove (8). A scribing auxiliary rod (9) is fixed inside the observation window (7), and a groove structure is provided in the middle of the scribing auxiliary rod (9). A comparison plate (10) is fixed in the middle of the front surface of the hidden groove (8) and is fixedly connected to the front end of the scribing auxiliary rod (9).

2. The nut for facilitating observation of a loosening condition according to claim 1, characterized by: The nut body (1) has a nut thread (2) inside, which is connected to the external bolt thread.

3. The nut for facilitating observation of a loosening condition according to claim 1, characterized by: The bottom outer side of the nut body (1) is fixed with a nut clamping block (3), and five sets of slots (4) are equally spaced on the top outer side of the nut body (1).

4. The nut facilitating the observation of a loosening condition according to claim 3, characterized in that: All five card slots (4) have a marking card (6) inserted inside, and all five card slots (4) have an observation slot (5) on their outer side.

5. The nut facilitating the observation of a loosening condition according to claim 4, characterized in that: The five sets of observation slots (5) are respectively engaged with the five sets of marking cards (6).

6. The nut facilitating the observation of a loosening condition according to claim 1, characterized in that: The front surface of the comparison plate (10) is provided with a scale bar (11), which is symmetrically arranged based on the horizontal central axis of the scribing auxiliary rod (9).