Compasses for mathematics subject

The utility model relates to the technical field of teaching tools, and particularly discloses a pair of compasses for mathematics subjects, which comprises a holding column, a connecting frame I is fixedly mounted at the bottom end of the holding column, a connecting rod I and a connecting rod II a...

Full description

Saved in:
Bibliographic Details
Main Author WANG LI
Format Patent
LanguageChinese
English
Published 12.03.2024
Subjects
ACCESSORIES FOR WRITING OR DRAWING
ARTICLES FOR WRITING OR DRAWING UPON
BUREAU ACCESSORIES
PERFORMING OPERATIONS
TRANSPORTING
WRITING OR DRAWING IMPLEMENTS
Online AccessGet full text

Cover

More Information
Summary:The utility model relates to the technical field of teaching tools, and particularly discloses a pair of compasses for mathematics subjects, which comprises a holding column, a connecting frame I is fixedly mounted at the bottom end of the holding column, a connecting rod I and a connecting rod II are rotatably mounted in the left side and the right side of the connecting frame I respectively, a connecting seat is rotatably mounted at the bottom end of the connecting rod I, and the connecting rod II comprises a rod body. A threaded groove is formed in the surface of the rod body, and a first stud is installed in the threaded groove in a threaded mode. By arranging the connecting base, the position of the first connecting rod can be fixed through the suction cup, rotation of the first connecting rod cannot be affected, and therefore the blackboard can be effectively protected and prevented from being poked and damaged by the round pointed end, and the safety of the device is improved; a gear is arranged to be
Bibliography:Application Number: CN202321373907U