The utility model discloses a chalk sleeve, which comprises a coat body and the inner sleeve body, the outer sleeve body is arranged at the bottom of the end cap, the outer body and the inner casing sliding connection, the inner sleeve body is formed by the upper chalk chalk base arc-shaped clamping groove and the lower part of the outer wall the chalk arc clamping groove is arranged on the ring, the ring can be clamped on the outer wall of the arc-shaped groove to move the chalk, the chalk on the outer wall of the corresponding base is installed, the installation of the bottom of the block through a pin shaft block 1 is connected with the tooth, the tooth block I through the base is connected with the chalk springs, the tooth block 1 toward one side of the base on the edge of the chalk arc, the tooth tooth block 1 and the inner wall of coat on both sides of the block II with the chalk at the bottom of the base is connected with a push rod through the outer casing. The utility model can avoid direct contact between finger and chalk, make full use of chalk, avoid waste, simple operation, convenient use and strong practicability.
【技术实现步骤摘要】
粉笔套
本技术涉及教师用品领域,具体涉及一种粉笔套。
技术介绍
目前,教师在使用粉笔进行书写时,手指会与粉笔直接接触,这样会将教师的手指弄脏,且粉笔会对皮肤有一定的腐蚀作用,长此以往,会对教师的手指造成伤害。
技术实现思路
本技术的目的是提供一种粉笔套,该粉笔套可防止粉笔对皮肤直接接触,减少了粉笔对皮肤的危害。为实现上述目的,本技术包括外套体和内套体,其特征在于,所述外套体的内部与内套体滑动连接,所述内套体是由上部的弧状粉笔夹持槽和下部的粉笔底座构成,所述弧状粉笔夹持槽的外壁上设置有箍圈,所述箍圈可在弧状粉笔夹持槽外壁上移动,所述粉笔底座的外壁两侧对应设置有安装块,所安装块的底部通过销轴与齿形挡块Ⅰ连接,所述齿形挡块Ⅰ通过弹簧与粉笔底座连接,所述齿形挡块Ⅰ朝向粉笔底座一侧上边缘为弧状,所述齿形挡块Ⅰ与外套体内壁两侧的齿形挡块Ⅱ相配合,所述粉笔底座的底部连接有贯穿外套体的推杆。通过以上设置,本技术可避免手指与粉笔的直接接触,充分利用了粉笔,避免浪费,操作简单,使用方便,实用性强。附图说明图1为本技术结构示意图。图中:1、外套体,2、内套体,3、弧状粉笔夹持槽,4、粉笔底座,5、箍圈,6、安装块,7、齿形挡块Ⅰ,8、弹簧,9、齿形挡块Ⅱ,10、推杆。具体实施方式如图1所示,本技术包括外套体和内套体,其特征在于,所述外套体1的内部与内套体2滑动连接,所述内套体2是由上部的弧状粉笔夹持槽3和下部的粉笔底座4构成,所述弧状粉笔夹持槽3的外壁上设置有箍圈5,所述箍圈5可在弧状粉笔夹持槽3外壁上移动,所述粉笔底座4的外壁两侧对应设置有安装块6,所安装块6的底部通过销轴与齿形 ...
【技术保护点】
粉笔套,包括外套体和内套体,其特征在于:所述外套体的底部设置有端帽,所述外套体的内部与内套体滑动连接,所述内套体是由上部的弧状粉笔夹持槽和下部的粉笔底座构成,所述弧状粉笔夹持槽的外壁上设置有箍圈,所述箍圈可在弧状粉笔夹持槽外壁上移动,所述粉笔底座的外壁两侧对应设置有安装块,所安装块的底部通过销轴与齿形挡块Ⅰ连接,所述齿形挡块Ⅰ通过弹簧与粉笔底座连接,所述齿形挡块Ⅰ朝向粉笔底座一侧上边缘为弧状,所述齿形挡块Ⅰ与外套体内壁两侧的齿形挡块Ⅱ相配合,所述粉笔底座的底部连接有贯穿外套体的推杆。
【技术特征摘要】
1.粉笔套,包括外套体和内套体,其特征在于:所述外套体的底部设置有端帽,所述外套体的内部与内套体滑动连接,所述内套体是由上部的弧状粉笔夹持槽和下部的粉笔底座构成,所述弧状粉笔夹持槽的外壁上设置有箍圈,所述箍圈可在弧状粉笔夹持槽外壁上移动,所述粉笔...
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。