The utility model belongs to the field of furniture technology, and discloses a liftable teaching bench with a seat surface; the lower end of the seat surface is bolted with a lifting rod, the surface of the lifting rod is evenly provided with a row of grooves in the vertical direction, the outer side of the lifting rod is sleeved with a sleeve, the sleeve is provided with a vertical rectangular opening on one side of the groove of the lifting rod, and the outer side of the sleeve is sleeved with a vertical rectangular opening. The clasp ring is bolted with a clasp tongue, the left end of the clasp tongue is sleeved with a handle, the lower right end of the clasp tongue is connected with a pull spring, and the lower end of the pull spring is connected with a ring hook welded on the outer side of the sleeve. The upper side of the inner wall of the groove is a horizontal plane and the lower side is an arc-shaped curved inclined plane; the right end of the clamping tongue is a slope matching with the groove. The bench of the utility model can adjust the height of the bench by matching the clamping tongue with different grooves on the upper and lower of the lifting rod, and has compact structure and firm positioning, which is suitable for the use of the University drawing classroom and the students with long body.
【技术实现步骤摘要】
一种可升降的教学板凳
本技术属于家具
,尤其涉及一种可升降的教学板凳。
技术介绍
目前,业内常用的现有技术是这样的:目前的课桌板凳是固定的高度不能变动,但是学生在看书和画图时,要求板凳的高度能够变动,比如大学生画工程图样时要求人坐的板凳高一些,这样才能把整个图板上的图纸画全,因此要求板凳能够升高;而当只看书做作业时,又要求人坐矮一点,眼睛离桌面近一点,这时就需要板凳能够降低。因此,专利技术一种可调节高度的板凳是非常必要的。不仅对于大学里制图教室的板凳而言,对于中小学教室的凳子也很有必要,因为小学生的身高是不断成长的,眼睛看书的距离也是变化的,因此坐的板凳也应该可以调高调矮,这样更加人性化,用途更加广泛。综上所述,现有技术存在的问题是:现有的板凳高度固定,不可调节,容易造成学生画图不便、看书疲劳和身体不适,进而影响学生的发育成长,无法满足不同学生的需求。
技术实现思路
针对现有技术存在的问题,本技术提供了一种可升降的教学板凳,满足各类学生的不同需求。本技术是这样实现的,一种可升降的教学板凳设置有:座面;所述座面下端栓接有升降杆,连接成固定一体,可对座面起到升降调节 ...
【技术保护点】
1.一种可升降的教学板凳,其特征在于,所述可升降的教学板凳设置有:座面、升降杆、套筒、卡环、固定轴、卡舌、手柄、拉簧、圆环、挂钩、支撑脚;所述座面下端栓接有升降杆,所述升降杆表面竖直方向均匀开设有一排多个凹槽;所述升降杆外侧套接有套筒,所述套筒在升降杆凹槽的一侧开设有一个竖直的矩形开口,所述套筒外侧套接有卡环;所述卡环上有活动连接的卡舌,所述卡舌左端下方套接有手柄,所述卡舌右端下侧挂接有拉簧,所述拉簧下端挂接在焊接在套筒外侧的圆环挂钩上。
【技术特征摘要】
1.一种可升降的教学板凳,其特征在于,所述可升降的教学板凳设置有:座面、升降杆、套筒、卡环、固定轴、卡舌、手柄、拉簧、圆环、挂钩、支撑脚;所述座面下端栓接有升降杆,所述升降杆表面竖直方向均匀开设有一排多个凹槽;所述升降杆外侧套接有套筒,所述套筒在升降杆凹槽的一侧开设有一个竖直的矩形开口,所述套筒外侧套接有卡环;所述卡环上有活动连接的卡...
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