The utility model relates to the technical field of student tools, in particular to a portable student easel, which comprises a support vertical bar, a support horizontal bar, a sliding cylinder and a connecting rod, the upper end of the support vertical bar is fixedly connected with a support box, the left end tooth disc of the support horizontal bar is sleeved on the first connecting shaft in the support box, the left end of the pull rod is fixedly connected with an arc fixed frame in the support box, and the left end of the support horizontal bar is front and back The sides are hinged with a drawing board through a hinge, the upper end face of the support cross bar is provided with a second rack, the second rack tooth is inclined from the left end face to the right end face, the sliding cylinder is sleeved outside the support cross bar, the inner part of the sliding cylinder is provided with a locking rod, and the right end of the locking rod is meshed with the second rack. The structure of the utility model is reasonable in design. By pulling the handle to the right, the angle of the drawing board at the left end of the support crossbar can be adjusted. The sliding cylinder can slide directly to the left to expand the two drawing boards. By pressing the pressing plate and sliding the sliding cylinder to the right along the support crossbar at the same time, the two drawing boards can be folded and folded up, which can effectively reduce the space occupation and make the carrying convenient.
【技术实现步骤摘要】
一种便携式学生画架
本技术涉及学生用具
,尤其是一种便携式学生画架。
技术介绍
美术是目前学生必须掌握的基本能力,是实现学生素质教育的必然要求,随着社会的不断发展,越来越多的学生选择美术专业进行学习。要学习美术,画架是必不可少的工具,但传统的画架结构简单,体积较大又不便于折叠,因而携带不便,学生外出写生很不方便,为解决这一问题,在公告号为CN207772762U的中国技术专利中,公布了一种简易可折叠画架,通过拉动两个把手,使两个第二滑杆分别滑动退出对应的凹槽,即可快速地对两块画板进行折叠和展开,减小了画板对空间的占用,方便学生携带。然而该装置在进行折叠时需要拉动两个把手,逐一将第二滑杆滑出对应的凹槽,才可进行折叠,操作不便,而且该装置画板角度不可调节,无法适应不同学生的不同需求,因而该装置仍需进一步改进。
技术实现思路
本技术的目的是为了克服上述技术缺点提供一种便携式学生画架,通过向右拉动拉柄即可调节支撑横杆左端画板角度,滑筒可直接向左滑动以将两画板展开,按住按压板同时沿支撑横杆向右滑动滑筒即可将两 ...
【技术保护点】
1.一种便携式学生画架,包括支撑竖杆、支撑横杆、滑筒和连接杆,其特征在于:所述支撑竖杆为伸缩杆结构且支撑竖杆上设有相应的紧固旋钮,支撑竖杆下端均匀铰接有三根支撑脚,上端固接有支撑盒,所述支撑盒左端及上端开口,支撑盒内固接有第一连接轴,所述支撑横杆右端固接有齿盘,所述齿盘套接于第一连接轴上,所述支撑盒右端插接有拉杆,拉杆右端于支撑盒右侧固接有拉柄,拉杆左端于支撑盒内固接有弧形固定架,弧形固定架左端面固接有第一齿条,所述第一齿条与齿盘上齿牙相适匹配,所述拉杆于支撑盒内侧部分外套接有支撑弹簧,所述支撑横杆左端前后两侧均通过铰链铰接有画板,支撑横杆上端面设有齿条槽,齿条槽内底面固接 ...
【技术特征摘要】
1.一种便携式学生画架,包括支撑竖杆、支撑横杆、滑筒和连接杆,其特征在于:所述支撑竖杆为伸缩杆结构且支撑竖杆上设有相应的紧固旋钮,支撑竖杆下端均匀铰接有三根支撑脚,上端固接有支撑盒,所述支撑盒左端及上端开口,支撑盒内固接有第一连接轴,所述支撑横杆右端固接有齿盘,所述齿盘套接于第一连接轴上,所述支撑盒右端插接有拉杆,拉杆右端于支撑盒右侧固接有拉柄,拉杆左端于支撑盒内固接有弧形固定架,弧形固定架左端面固接有第一齿条,所述第一齿条与齿盘上齿牙相适匹配,所述拉杆于支撑盒内侧部分外套接有支撑弹簧,所述支撑横杆左端前后两侧均通过铰链铰接有画板,支撑横杆上端面设有齿条槽,齿条槽内底面固接有第二齿条,...
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