Multifunctional English major learning teaching auxiliary board
The utility model discloses a multifunctional English major learning teaching auxiliary board which comprises a set of supporting legs, a transverse plate is fixedly installed at the upper ends of the set of supporting legs, a supporting frame is arranged on the upper surface of the transverse plate...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a multifunctional English major learning teaching auxiliary board which comprises a set of supporting legs, a transverse plate is fixedly installed at the upper ends of the set of supporting legs, a supporting frame is arranged on the upper surface of the transverse plate in a contact mode, a worm movably penetrates through the interior of the supporting frame, the worm is connected with a turbine in an engaged mode, a threaded rod penetrates through the turbine, and the threaded rod is connected with the supporting frame. The surface of the threaded rod is sleeved with a threaded sleeve, the threaded rod movably penetrates through an upper bottom plate of the supporting frame, and a second disc is fixedly arranged at the lower end of the threaded rod. A second disc at the bottom of a threaded rod is movably clamped in a lower bottom plate of the supporting frame, a turbine is fixedly connected with the threaded rod, the turbine and the threaded rod rotate synchronously, the thread |
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