Adjustable chalk clip

可调式粉笔夹

  • Inventors: WANG JIANSHENG
  • Assignees: 王建生
  • Publication Date: September 12, 2012
  • Publication Number: CN-202428896-U

Abstract

The utility model discloses an adjustable chalk clip, which consists of a pen container frame, compressed spring sheets, a clamping sheet, a cartridge, a tightness-adjustable chalk point, a lifting column, a spring and a locking cap, wherein seven cylindrical holes are formed at the periphery of the pen container frame; the outer sides of the cylindrical holes are provided with the compressed spring sheets, and the inner sides of the cylindrical holes are provided with open slots; the cartridge is cylindrical, a central hole is formed at the central position of the cartridge, and an inlet groove is formed at the upper end of the cartridge; the upper end of the cartridge is connected with the pen container frame through the clamping sheet in a sleeved mode, and the lower end of the cartridge is provided with the tightness-adjustable chalk point; the lifting column is engaged with the central hole through threads; and the lower end of the lifting column is provided with the spring and the locking cap. When the adjustable chalk clip is used, fingers are not contacted with chalks, so that the adjustable chalk clip is clean and sanitary; and seven chalks in different colors are filled in the pen container frame, so that the chalks can be quickly and conveniently replaced at any time according to the requirements of writing and drawing. The adjustable chalk clip has a simple structure, is convenient to operate, brings convenience to teachers and is suitable to be popularized.
一种可调式粉笔夹,是由笔筒架、压簧片、卡片、笔芯、松紧笔头、升降柱、弹簧和固定帽组成,笔筒架的圆周边设有7个圆柱孔,圆柱孔的外侧设有压簧片,其内侧设有开口槽;笔芯呈圆柱体,中心位置设有中心孔,其上端设有进口槽;笔芯的上端通过卡片与笔筒架套接,其下端设有松紧笔头;升降柱与中心孔通过螺纹啮合;升降柱下端设有弹簧和固定帽。本实用新型使用时手指不接触粉笔,干净卫生;而且笔筒架装有7根不同颜色的粉笔,可根据书写、画图需要,随时更换粉笔,快捷、方便。本实用新型结构简单、操作方便,即给教学工作者带来了方便,也适于推广。

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    Publication numberPublication dateAssigneeTitle
    CN-103085536-AMay 08, 2013王建生Adjustable chalk holder