Electric pencil sharpener

CN224689878UActive Publication Date: 2026-08-28DELI GROUP CO LTD
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Patent Information

Application Number
CN202521827843.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-27
Publication Date
2026-08-28
Estimated Expiration
2035-08-27

AI Technical Summary

Technical Problem

但是，该技术方案通过在电回路上设置弹性金属顶针和金属接触部，在削笔过程中，木屑和铅粉会不断产生并堆积在刀架罩和壳体内部，由于安全机构的触点（弹性金属顶针和金属接触部）暴露在这些笔屑中，很容易被木屑和铅粉覆盖，一旦触点被覆盖，可能会导致电回路无法正常导通或断开，从而影响安全机构的功能

Benefits of technology

[0006]本技术方案中，设计第一腔体和第二腔体，使得笔屑与驱动组件分离，避免了笔屑对驱动组件的干扰，盖体和壳体采用可拆卸连接方式，并且盖体与刀架罩配合能够将盖体与刀芯组件同步取出，使得在清理时第一腔体内仅留存笔屑，实现快速便捷清理，通过触发机构与启动开关的连接和断开，实现了驱动组件的自动启动和停止，实现了驱动组件的自动控制，用户无需手动操作开关，提高了使用的便捷性，将触发机构安装在刀架罩内，而启动开关安装在第二腔体内，触发机构与启动开关通过磁性配合、密封配合等非直接接触式配合方式实现触发，有效防止了笔屑等杂质干扰触发，刀架罩和第二腔体的分隔设计，使得触发机构和启动开关处于相对独立的空间，使得笔屑无法直接接触到启动开关，从而避免了因笔屑堆积导致的触发失败或误触发问题，启动和停止操作更加稳定可靠，确保了用户在清理笔屑时的安全性，提高整机使用可靠性。

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Abstract

The application discloses an electric pencil sharpener, which comprises a cover, a shell and a cutter core assembly. The shell is provided with a first cavity and a second cavity. The first cavity is used for containing pencil shavings. The second cavity is internally provided with a driving assembly. The driving assembly is used for driving the cutter core assembly to sharpen a pencil. The cover is detachably connected with the shell. The cover is provided with a cutter holder cover which is matched with the cutter core assembly. The cutter core assembly is installed in the cutter holder cover. The cover can drive the cutter core assembly to synchronously enter or leave the first cavity under stress. The second cavity is internally provided with a starting switch which is electrically connected with the driving assembly. The cutter holder cover is internally provided with a trigger mechanism which is matched with the starting switch. When the trigger mechanism is connected with the starting switch, the starting switch makes the driving assembly start working. When the trigger mechanism is disconnected with the starting switch, the starting switch makes the driving assembly stop working.
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Citation Information

Patent Citations

  • Safety structure of pencil sharpener

    CN211166143U