Primary school's chinese teaching aid

• Main Author: ZHANG JIANGYUAN
• Format: Patent
• Language: Chinese; English
• Published: 29.06.2016
• Subjects: ACCESSORIES FOR WRITING OR DRAWING; ARTICLES FOR WRITING OR DRAWING UPON; BUREAU ACCESSORIES; PERFORMING OPERATIONS; TRANSPORTING; WRITING OR DRAWING IMPLEMENTS

The utility model discloses a primary school's chinese teaching aid, including screw rod and handle, the screw rod is made by the stainless steel, the screw rod upper end is equipped with the chalk sleeve pipe, and the lower extreme is screwed joint, the handle is made by wooden material, the handle upper surface is opened there is three threaded holes and power groove, the power trench is in the upper right side of handle upper surface, be equipped with the sliding closure on the power groove, and the central point on sliding closure surface puts and is equipped with non -slip raised, the lower surface of handle is the blackboard eraser, the handle openly respectively is equipped with a friction surface with the back, the positive right side of handle is equipped with time time -recorder and time time -recorder switch, time time -recorder switch lies in the left side of time time -recorder, the handle right flank is equipped with circular magnet, circular magnet can adsorb the optional position at the blackb