Rubber eraser

一种橡皮擦

  • Inventors: WANG GUANGZE
  • Assignees: 王广泽
  • Publication Date: July 08, 2015
  • Publication Number: CN-204451745-U

Abstract

本实用新型涉及一种橡皮擦,包括橡皮和中空的外护套,橡皮设置在外护套内,与外护套相互配合使用,其特征在于:所述外护套一端封闭,另一端设有套盖,所述套盖与外护套一面通过铰链固定连接,所述外护套上设有滑动开关,用于固定套盖,使套盖与外护套闭合,所述外护套内壁上设有与外护套轴心平行的凸棱,所述外护套外壁上设有指痕槽,所述外护套闭合端设有录音装置、定时器和报警装置,所述定时器和报警装置电相连,所述橡皮表面设有与凸棱对应的凹槽,使橡皮和外护套相互契合。本实用新型外护套的存在能使橡皮便于擦拭小范围错误痕迹,荧光涂层便于橡皮丢失后寻找,录音装置能记录授课内容,定时器和报警器能定时提醒学生完成学习任务。
The utility model relates to a rubber eraser. The rubber eraser comprises a rubber eraser body and a hollow outer protecting sleeve. The rubber eraser body is arranged in the outer protecting sleeve and matched with the same in use. The rubber eraser is characterized in that one end of the outer protecting sleeve is closed, the other end of the outer protecting sleeve is provided with a protecting sleeve cover which is fixedly connected with one face of the outer protecting sleeve via a hinge, a slide switch is arranged on the outer protecting sleeve and used for fixing the protecting sleeve cover and enabling the protecting sleeve cover and the outer protecting sleeve to be closed, a rib parallel to the axial center of the outer protecting sleeve is arranged on the inner wall of the outer protecting sleeve, a finger mark groove is formed in the outer wall of the outer protecting sleeve, a sound recording device, a timer and an alarming device are arranged at the closed end of the outer protecting sleeve, the timer is electrically connected with the alarming device, and a groove corresponding to the rib is formed in the surface of the rubber eraser body, so that the rubber eraser body and the outer protecting sleeve are enabled to be fit with each other. The rubber eraser has the advantages that by the aid of the outer protecting sleeve, the rubber eraser is capable of erasing errors in small ranges, a lost rubber eraser can be easily found by the aid of a fluorescent coating, the lecture content can be recorded by the aid of the sound recording device, and a student can be reminded of finishing learning tasks regularly by the aid of the timer and the alarming device.

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