粉笔套

Chalk socket

  • Inventors: JIANG XING
  • Assignees: 蒋星
  • Publication Date: December 07, 2016
  • Publication Number: CN-106183544-A

Abstract

粉笔套,笔头套(1)、笔身(2)、笔尾套(6)从头到尾依次相连成为一体;笔身(2)内壁有一条或二条凸块(7),粉笔套(3)装入笔身(2)内;旋转杆(4)外周设有外螺纹,旋转杆(4)的尾端外圈设有旋转环(12),旋转环(12)外周设有外齿条,笔尾套(6)内壁设有与上述外齿条相配套的内齿槽;旋转杆(4)中空,旋转杆(4)内壁设有与套头(11)外螺纹相配套的内螺纹或二至三个内螺纹块,套头(11)旋转套入旋转杆(4)内,通过旋转环(12)和凹槽二,旋转杆(4)和旋转套(5)被装入笔身(2)和笔尾套(6)内。本发明使得使用粉笔很方便,节约材料、环保。
A chalk socket is disclosed. A head cap (1), a holder (2) and a tail cap (6) are integrally connected in the stated order from head to tail. One or two bumps (7) are disposed on an inner wall of the holder (2), and the chalk socket (3) is mounted in the holder (2). External threads are formed on the periphery of a rotating rod (4). A rotating ring (12) is disposed circumferentially on a tail end of the rotating rod (4). An outer rack is disposed on the periphery of the rotating ring (12), and an inner toothed groove matching with the outer rack is formed in an inner wall of the tail cap (6). The rotating rod (4) is hollow, and internal threads or two or three internal thread blocks matching with external threads of a socket head (11) are provided on an inner wall of the rotating rod (4). The socket head (11) is screwed in the rotating rod (4). With the rotating ring (12) and a second groove(s), the rotating rod (4) and a rotating sleeve (5) are mounted in the holder (2) and the tail cap (6). The chalk socket enables convenient use of chalks; and material saving and environmental protection are achieved.

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Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    CN-201109279-YSeptember 03, 2008艾吉尔·伊米提Environment protection chalk
    CN-201784300-UApril 06, 2011宁波松鹤文具有限公司Pen-shaped structure with scribbling core
    CN-204432073-UJuly 01, 2015王钦儒一种粉笔夹持器
    CN-206067298-UApril 05, 2017蒋星粉笔套

NO-Patent Citations (0)

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