一种热敏打印机芯胶辊轴套简易固定脱出卡槽机构
By combining a uniquely shaped slot and a compression spring, the problem of cumbersome assembly and difficult removal of the rubber roller bushing in thermal printers is solved, achieving simple fixing and smooth removal of the rubber roller bushing, reducing costs and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING SPIRIT TECH DEV
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-17
AI Technical Summary
In existing thermal printers, the assembly of the rubber roller bushing is cumbersome and complicated, the removal is not smooth and the cost is high, and the plastic parts are prone to damage after long-term use.
It adopts an irregularly shaped groove and a compression spring structure. The irregularly shaped groove is wide at the entrance and narrow in the middle. The middle section is equipped with a triangular hook, and the bottom is a fixed clamping section. Combined with the action of the compression spring, it can easily fix and remove the rubber roller bushing.
It simplifies the process of fixing the rubber roller bushing, reduces costs, increases the service life of the rubber roller bushing, and avoids friction damage from metal wire retaining rings and breakage of plastic parts.
Smart Images
Figure CN224510684U_ABST