Well lid device opened through magnetic attraction method
The utility model discloses a well lid device opened by magnetic attraction, which comprises a strong magnetic device and a ferromagnetic well lid, the strong magnetic device comprises a permanent magnetic chuck, and the ferromagnetic well lid comprises a lid body and a plurality of ferromagnetic bl...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a well lid device opened by magnetic attraction, which comprises a strong magnetic device and a ferromagnetic well lid, the strong magnetic device comprises a permanent magnetic chuck, and the ferromagnetic well lid comprises a lid body and a plurality of ferromagnetic blocks positioned on the top surface of the lid body; the shape and size of the adsorption surface ofthe permanent magnetic chuck are consistent with those of the ferromagnetic block, and the adsorption surface of the permanent magnetic chuck is attached to the top surface of the ferromagnetic block.The strong magnetic device is equivalent to a key for opening the ferromagnetic well lid, and the well lid can be opened only when the adsorption surface is completely attached to the surface of theferromagnetic block on the top surface of the ferromagnetic well lid.
本实用新型公开了一种用磁吸打开的井盖装置,包括强磁装置、铁磁性井盖,所述强磁装置包括永磁吸盘,所述铁磁性井盖包括盖体以及位于盖体顶面的若干铁磁块;所述永磁吸盘的吸附面形状大小和铁磁块的形状大小一致,永磁吸盘的吸附面和铁磁块的顶面贴合。本实用新型中的强磁装置相当于开启铁磁性井盖的一把钥匙,吸附面需跟铁磁性井盖顶面的 |
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