Thermal printer opening and closing structure and thermal printer

By introducing a damping structure between the top cover assembly and the bottom base assembly of the thermal printer, the impact force problem during the top cover's descent is solved, ensuring equipment safety and operational safety.

CN224130732UActive Publication Date: 2026-04-17XIAMEN JING XIN SCI & TECH CO LTD
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Patent Information

Application Number
CN202520389101.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-04-17
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

Existing portable thermal printers have a high impact force during the fall of the top cover assembly, which may cause damage to the device and pinch fingers.

Method used

A thermal printer opening and closing structure was designed, in which the connecting support frame of the upper cover assembly and the insertion channel of the lower base assembly form frictional damping through the cooperation of the protrusion and the arc-shaped notch to avoid strong impact, and achieve stable closure through elastic buckle.

Benefits of technology

The damped closure of the top cover assembly is achieved, avoiding the risk of equipment damage and finger pinching, making operation safer and more reliable.

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Abstract

An opening and closing structure of a thermal printer comprises a lower base assembly and an upper cover assembly which can be arranged on the lower base assembly in a turnover mode, and is characterized in that a connecting supporting frame is arranged at the rear end of the upper cover assembly, a shaft part and a falling groove are arranged on one side of the connecting supporting frame, and correspondingly, the lower base assembly is provided with an inserting channel for containing the connecting supporting frame. The shaft hole is in running fit with the shaft part, and the convex body can be in extrusion contact with the outer wall of the connecting support frame to generate damping. The utility model also discloses a thermal printer. When the upper cover assembly and the lower base assembly are closed, the protruding body and the outer wall of the supporting frame form extrusion contact, friction force is formed on the contact face, damping of the last stroke of the upper cover assembly is achieved, strong impact of the upper cover assembly on the lower base assembly is avoided, and the risk that fingers are clamped can also be reduced.
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