The invention discloses a portable English teaching device which comprises a base, two stages of telescopic rods and teaching boards. The two stages of the telescopic rods comprise the first telescopic rod and the second telescopic rod, the first telescopic rod is in sliding connection with the second telescopic rod, and the second telescopic rod is located in the first telescopic rod. The teaching boards comprise the first teaching board and the second teaching board, and the first teaching board and the second teaching board are matched in a hinged mode. Supporting legs are arranged on the lower sides of the four corners of the base, and rollers are symmetrically arranged on the two sides of the front portion of the base. A first connecting device is arranged at the bottom of the first telescopic rod, and a fixing block is arranged on the upper portion of the first telescopic rod. A safety pin is arranged on the fixing block. A fixing device is arranged at the top of the first telescopic rod and composed of a spring pin and a spring. Grooves are uniformly distributed in the second telescopic rod. A second connecting device is arranged at the top of the second telescopic rod. Small handles are symmetrically arranged on the front side of the first teaching board and the second teaching board, a second magnet block is arranged on the lower side of the middle of the front portion of the first teaching board, and a large handle is arranged on the lower side of the middle of the rear portion of the first teaching board.
本发明公开了一种便携式英语教学用装置,包括底座、二级伸缩杆以及教学板;二级伸缩杆包括第一伸缩杆和第二伸缩杆,第一伸缩杆与第二伸缩杆滑动连接,第二伸缩杆位于第一伸缩杆内部,教学板包括第一教学板与第二教学板,第一教学板与第二教学板铰接配合。底座四角下方设有支撑脚,底座前方两侧对称设有滚轮;第一伸缩杆底部有第一连接装置,第一伸缩杆上部设有固定块,固定块上设有插销;第一伸缩杆顶部设有固定装置,固定装置由弹簧销以及弹簧组成;第二伸缩杆上均匀分布有凹槽;第二伸缩杆顶部设有第二连接装置,第一教学板前侧与第二教学板上对称设有小把手,第一教学板前方中部下侧设有第二磁铁块,第一教学板后方中部下侧设有大把手。
Portable English teaching device
一种便携式英语教学用装置
2021-07-09
Patent
Electronic Resource
Chinese
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