Telescopic blackboard eraser

• Main Authors: CHEN SHIJUAN, CAI RONGHUA, ZHANG LIUQIN, LU MIAOJUN, ZHOU JIACONG, LIANG JINGYAN, LI HAIQI
• Format: Patent
• Language: Chinese; English
• Published: 02.01.2013
• Subjects: ACCESSORIES FOR WRITING OR DRAWING; ARTICLES FOR WRITING OR DRAWING UPON; BUREAU ACCESSORIES; PERFORMING OPERATIONS; TRANSPORTING; WRITING OR DRAWING IMPLEMENTS

The utility model relates to a telescopic blackboard eraser and, according to international patent classification, belongs to the technical field of the subgroup characterized by being provided with telescopic devices, the group of cleaning devices for blackboards or stone boards, the subclass of writing or drawing assisting supplies, the office supply class of writing and drawing supplies, the printing subsection of writing and drawing supplies, and the section of performing operation and transporting. The telescopic blackboard eraser comprises a box body and an eraser head; the eraser head is disposed under the box body; the surface of the back of the box body is provided with a groove; a clamping groove is disposed in the groove; the back of the box body is provided with a telescopic rod; the tail end of the telescopic rod is provided with a hanging ring; a supporting rod is disposed under the telescopic rod; and the angle between the telescopic rod and the box body can be fixed when the supporting rod is