Novel Chinese international education contrast explanation board
The utility model belongs to the technical field of Chinese education. The novel Chinese international education contrast explanation board comprises a board body, the device comprises a left plate, aright plate and a bottom plate, the left side plate and the right side plate are rotationally connec...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model belongs to the technical field of Chinese education. The novel Chinese international education contrast explanation board comprises a board body, the device comprises a left plate, aright plate and a bottom plate, the left side plate and the right side plate are rotationally connected through a rotating shaft; bottom plate equally divided into two blocks, the back surface of theleft side plate is rotationally connected with a fixed block through a rotating shaft; the back surface of the right side plate is connected with the other fixing block; the back surface of the rightside plate is rotationally connected with a knob; the bottom end of the knob is connected with an ejector rod; bolts are arranged on the back surface of the right side plate in parallel; the first puller spring, the plug pin, the limiting block, the fixed block, the movable block, the second puller spring, the pressing rod, the clamping groove, the ejector rod and the knob are installed on the back face of the left side pl |
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