Novel teaching compass
The utility model discloses a novel teaching compass which comprises a compass cap. A first compass foot is arranged on the lower face of the compass cap. The compass cap is fixedly connected with the first compass foot through a rotating handle. A blind hole for fixing chalk is formed in the lower...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The utility model discloses a novel teaching compass which comprises a compass cap. A first compass foot is arranged on the lower face of the compass cap. The compass cap is fixedly connected with the first compass foot through a rotating handle. A blind hole for fixing chalk is formed in the lower face of the first compass foot. A groove is formed in the side face of the first compass foot. A second compass foot is arranged in the groove. The second compass foot comprises a telescopic sleeve and a telescopic rod which is used for stretching in the telescopic sleeve. A compass needle is arranged on the lower face of the telescopic rod. The telescopic sleeve is movably connected with the groove through a rotating shaft. When the novel teaching compass is not used, the second compass foot can be contained in the groove of the first compass foot, accordingly, space is saved, and damage cannot happen easily. |
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