23-04-2014 дата публикации
Номер: CN103741721A
Принадлежит:
The invention relates to a well lid device with a mechanical lock. The well lid device comprises a well lid and a lid opener, the well lid comprises a well lid fixing disc, a connecting rod slider mechanism, the mechanism lock and a seal lid, the well lid is in interference fit with the well lid fixing disc, a small hole is formed in the circle center of the well lid, the seal lid is mounted at the small hole and covers the small hole, the mechanical lock is fixed below the small hole of the well lid through a first screw, one end of the connecting rod slider mechanism is fixed on the mechanical lock through a second screw, and the other end of the connecting rod slider mechanism extends into the well lid fixing disc. The mechanical lock is simple and reliable in composition and simple and convenient to operate, devices below the well lid only include a torsion spring, a rotating disc, a connecting rod, a sliding rod and the like, the well lid device is high in reliability and low in manufacturing ...
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