The utility model relates to a new type of drawing blackboard with two telescopic poles and two bars articulated together. One rod can move along the slideway, the other can rotate around the hinge at the end of the hinge, and there is a hole at the end point of the two bar, which can be inserted into the chalk for use in teaching and can be used to achieve a vertical line on the blackboard. The horizontal line and the circle can adjust the length of the telescopic rod and draw circles with different diameters. A multi articulated telescopic rod is used to draw geometric figures, and two kinds of sketchboards are used. One kind of drawing board can be used to draw four lines and three lines for writing letters in English teaching. The other is integrated with many geometric figures on the other. It can easily draw the geometric figures in common use in teaching. Through two telescopic poles and drawing boards, the drawing of geometric figures in the teaching process becomes fast and convenient, which avoids the teacher's carrying of great teaching tools, drawing more easily and making the teaching work more convenient.
【技术实现步骤摘要】
一种新型绘图黑板
本技术涉及教学设备领域,特别涉及一种新型绘图黑板。
技术介绍
目前,现有的黑板功能比较单一,不能满足教学要求。英语教学中,需要教学生标准的字母书写时,需要在黑板上画出四线三格,只能通过粉笔沿着画板逐条画出,画线麻烦且线条之间的间距只能粗略相等。数学教学中,绘制几何图形时,经常需要绘制直线、弧线,需要携带直尺、圆规等几种必备的绘图工具且绘图工具体型较大,携带和使用均不方便,现有圆规的端部为尖头,在使用时易划伤黑板,影响画图速度和质量,且绘制的几何图形有限,一些曲线较难绘制。
技术实现思路
为了解决上述技术问题,本技术提供了一种新型绘图黑板,其技术方案为:包括黑板本体,所述黑板本体底部安装有滑道(1),黑板本体两侧分别设有导轨,其特征在于,还包括画板和伸缩装置,两侧导轨之间安装画板,画板设置在黑板本体上部,所述伸缩装置包括伸缩杆I(2)和伸缩杆II(3),所述伸缩杆I(2)一端铰接在滑道(1)上,且可在滑道(1)上左右滑行,其另一端与伸缩杆II(3)的一端铰接,伸缩杆I(2)和伸缩杆II(3)的端部均设有孔,用于夹紧粉笔。进一步地,所述孔为圆筒I(7)和圆筒II(8),圆筒I(7)设置在伸缩杆I(2)上,且在伸缩杆I(2)与伸缩杆II(3)铰接处的下部,圆筒II(8)设置在伸缩杆II(3)上,且在铰接处的另一端。进一步地,所述孔为圆孔I(7)和圆孔II(8),在孔的一侧安装螺栓,用于夹紧粉笔。进一步地,所述画板为画板I(5)和画板II(6),画板I(5)上设有多种图形,画板II(6)上为四条平行线,且每条平行线之间距离相等。进一步地,所述导轨上设 ...
【技术保护点】
1.一种新型绘图黑板,包括黑板本体,所述黑板本体底部安装有滑道(1),黑板本体两侧分别设有导轨,其特征在于,还包括画板和伸缩装置,两侧导轨之间安装画板,画板设置在黑板本体上部,所述伸缩装置包括伸缩杆I(2)和伸缩杆II(3),所述伸缩杆I(2)一端铰接在滑道(1)上,且可在滑道(1)上左右滑行,其另一端与伸缩杆II(3)的一端铰接,伸缩杆I(2)和伸缩杆II(3)的端部均设有孔,用于夹紧粉笔。
【技术特征摘要】
1.一种新型绘图黑板,包括黑板本体,所述黑板本体底部安装有滑道(1),黑板本体两侧分别设有导轨,其特征在于,还包括画板和伸缩装置,两侧导轨之间安装画板,画板设置在黑板本体上部,所述伸缩装置包括伸缩杆I(2)和伸缩杆II(3),所述伸缩杆I(2)一端铰接在滑道(1)上,且可在滑道(1)上左右滑行,其另一端与伸缩杆II(3)的一端铰接,伸缩杆I(2)和伸缩杆II(3)的端部均设有孔,用于夹紧粉笔。2.如权利要求1所述的一种新型绘图黑板,其特征在于,所述孔为圆筒I(7)和圆筒II(8),圆筒I(7)设置在伸缩杆I(2)上,且在伸缩杆...
【专利技术属性】
技术研发人员:刘世豪,应志强,王伟康,赵弘扬,
申请(专利权)人:刘世豪,
类型:新型
国别省市:山东,37
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