Movable blackboard for English teaching

Abstract

The invention discloses a movable blackboard for English teaching. The movable blackboard comprises a supporting frame, a plate body, a left column and a right column; the supporting frame is of a slot-shaped mechanism with an opening at the top, and the plate body is disposed in the supporting frame; straight tooth surfaces are symmetrically disposed on the left and right side faces of the platebody, and a driving gear is rotatably connected to the right side of the front end surface of the supporting frame; a limit gear is rotatably connected with the left side of the front end surface of the supporting frame, and the limit gear meshes with the left straight tooth surface of the plate body; and a locking mechanism is disposed below the limit gear, and the left column and the right column are fixed to the bottom of the supporting frame. The movable blackboard has clever structure and reasonable design and can adjust the height of the plate body according to the height of a teacher, and the height adjustment operation is simple and quick; and at the same time, the movable blackboard can quickly switch between the static placing state and the moving state and achieves the effect ofsaving time and labor, the stability in the static placing state is high, and the development of English teaching work is facilitated.

Description

technical field [0001] The invention relates to a teaching tool, in particular to a movable blackboard for English teaching. Background technique [0002] English is a language under the Indo-European-Germanic family. It is composed of 26 letters. The English alphabet is derived from the Latin alphabet, which is derived from the Greek alphabet, and the Greek alphabet is evolved from the Phoenician alphabet. English is an internationally designated official language (as mother tongue) and the most extensive first language in the world. English contains about 490,000 words, plus about 300,000 technical terms. The official language of the Commonwealth of Nations has the third largest number of native speakers in the world, second only to Chinese and Spanish. [0003] Blackboards are needed in the English teaching process. Most of the existing English teaching blackboards have the defect of inconvenient movement. In order to solve this problem, some blackboards are equipped wit...

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