A special drawing compass structure

CN224276690UActive Publication Date: 2026-05-26NINGBO AMES STATIONERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO AMES STATIONERY CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing compass legs have limited length, which limits the drawing diameter and makes it prone to wobbling or tipping over during use, affecting the accuracy and quality of the drawing.

Method used

A compass structure was designed, comprising a mounting base, legs, a steering base, an extension frame, a scale, a cross slider, an extension cylinder, and an extension rod. By employing multi-stage steering and adjusting the leg spacing, the range of drawing diameters is increased. Furthermore, the combination of a U-shaped frame and a T-shaped rod ensures connectivity and flexibility.

Benefits of technology

This technology increases the range of drawing diameters, improves the flexibility and accuracy of drawing, and ensures the stability and precision of compasses under different usage requirements.

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    Figure CN224276690U_ABST
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Abstract

This utility model belongs to the field of drawing aids, specifically a dedicated drawing compass structure, including a mounting base. A support leg is fixedly mounted on the bottom of the mounting base, and a first steering seat is fixedly mounted on one side of the mounting base. An extension frame is movably mounted inside the first steering seat. A through slot is formed in the middle of the front of the extension frame, and a scale is provided on one side of the top of the extension frame. A cross slider is movably mounted inside the extension frame. Through the structural design of the first steering seat, extension frame, scale, cross slider, second steering seat, extension cylinder, extension rod, and pen holder, the flexibility of the compass is increased. This allows for adjustment of the distance between the support leg and the pen holder by moving the cross slider inside the extension frame, thereby increasing the range of drawing diameters. Simultaneously, the multi-stage steering and extension allow the compass to adapt to different usage needs, solving the problem of insufficient flexibility in traditional compasses.
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