The utility model discloses a rubber eraser with high precision, including an rubber body, characterized in that the rubber eraser comprises an outer sleeve, an inner sleeve and a rotating core; the outer sleeve is a hollow cylinder with openings at both ends, the upper inner surface of the outer sleeve is hexagonal, and the lower inner surface of the outer sleeve is circular; the inner sleeve is sleeved on the inner side of the outer sleeve and the inner sleeve is a hollow cylinder with an opening at the bottom. The outer side of the inner sleeve is hexagonal and sliding connected with the inner side of the outer sleeve. The inner side of the inner sleeve is provided with a fixed protrusion which can be embedded in the thread and sliding connected with the thread. The top end of the rotary core is sleeved in the inner sleeve and the outer surface of the rotary core is provided with a thread matching with the fixed protrusion. The bottom end of the rotary core is provided with a rubber clamping part, and the rubber clamping part is embedded connected with the rubber body. The bottom end of the clamping part is connected with the limit protrusion at the inner bottom of the outer sleeve, the outer side of the rotating core at the top of the rubber clamping part is connected with the spring, and the top end of the spring is connected with the bottom end of the inner sleeve.
【技术实现步骤摘要】
一种高精准度的橡皮擦
本技术涉及学习工具领域,尤其涉及一种高精准度的橡皮擦。
技术介绍
普通香橡皮往往设计成三棱柱或者四棱柱状,有的带有香味,在使用时是用手移动橡皮使其与纸面摩擦,来达到擦除目的的。虽然使用方法简单,价格低廉,但是在使用时精准度不高,速度慢,容易降低纸面洁净度,损坏纸张。现在市面上的电动橡皮,其主体结构为一支连接电机的橡皮,电机转动带动橡皮旋转,以达到擦除目的。电动橡皮虽然橡皮切面小,相对于美术橡皮更省时省力,精准度更高,但是实际上,在使用时因为整体质量大,电机转动会带来震动却没有固定点,纯粹靠手的力量操作,十分容易在纸面上发生不可控滑动,从而给人们的使用带来不便。
技术实现思路
本技术目的是解决上述问题,设计一种方便快捷、精准度高的橡皮擦。为了实现上述目的,本技术的技术方案是:一种高精准度的橡皮擦,包括橡皮本体,所述橡皮擦包括外套筒、内套筒、旋转芯;外套筒为两端开口的空心柱体,外套筒上部内侧面呈六边形,外套筒下部内侧面呈圆形;内套筒套接在外套筒内侧且内套筒为底端开口的空心柱体,内套筒外侧面为六边形且与外套筒内侧面滑动连接,内套筒内侧面设置有可嵌入螺纹内并与螺纹滑动连接的固定凸起;旋转芯顶端套接在内套筒内且旋转芯外表面设置有与固定凸起配合的螺纹,旋转芯底端设置有橡皮夹持部,橡皮夹持部与橡皮本体嵌入式连接,橡皮夹持部底端与位于外套筒内侧底端的限位凸起连接,橡皮夹持部顶端的旋转芯外侧套接弹簧,弹簧顶端与内套筒底端连接。进一步的,所述外套筒底端设置有塑料圆钉。进一步的,所述外套筒顶端设置有第一防脱凸起,内套筒底端外表面设置有第二防脱凸起。与现有技术相比, ...
【技术保护点】
1.一种高精准度的橡皮擦,包括橡皮本体,其特征在于:所述橡皮擦包括外套筒、内套筒、旋转芯;外套筒为两端开口的空心柱体,外套筒上部内侧面呈六边形,外套筒下部内侧面呈圆形;内套筒套接在外套筒内侧且内套筒为底端开口的空心柱体,内套筒外侧面为六边形且与外套筒内侧面滑动连接,内套筒内侧面设置有可嵌入螺纹内并与螺纹滑动连接的固定凸起;旋转芯顶端套接在内套筒内且旋转芯外表面设置有与固定凸起配合的螺纹,旋转芯底端设置有橡皮夹持部,橡皮夹持部与橡皮本体嵌入式连接,橡皮夹持部底端与位于外套筒内侧底端的限位凸起连接,橡皮夹持部顶端的旋转芯外侧套接弹簧,弹簧顶端与内套筒底端连接。
【技术特征摘要】
1.一种高精准度的橡皮擦,包括橡皮本体,其特征在于:所述橡皮擦包括外套筒、内套筒、旋转芯;外套筒为两端开口的空心柱体,外套筒上部内侧面呈六边形,外套筒下部内侧面呈圆形;内套筒套接在外套筒内侧且内套筒为底端开口的空心柱体,内套筒外侧面为六边形且与外套筒内侧面滑动连接,内套筒内侧面设置有可嵌入螺纹内并与螺纹滑动连接的固定凸起;旋转芯顶端套接在内套筒内且旋转芯外表面设置有与固定凸起配合...
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