Novel teaching compasses
The invention discloses novel teaching compasses. The novel teaching compasses comprise an installation block, the installation block is internally provided with an installation cavity, the installation cavity is internally provided with a drive motor, and an output shaft of the drive motor penetrat...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses novel teaching compasses. The novel teaching compasses comprise an installation block, the installation block is internally provided with an installation cavity, the installation cavity is internally provided with a drive motor, and an output shaft of the drive motor penetrates through the side wall of the installation block and is connected with a vertical first rotating shaft. The side, away from the drive motor, of the first rotating shaft is provided with a vertical first compasses foot, and the side wall of one side of the first compasses foot is provided with a transverse connection block. The side wall of the connection block is provided with a U-shaped opening away from the first compasses foot, and the side walls of the two sides of the U-shaped opening arerotatably connected with a second compasses foot through a damping rotating shaft. The side wall of the lower side of the first compasses foot is provided with a vertical connection rod, and the connection rod is rotatably c |
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