Well lid device with mechanical lock

Abstract

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 and mounting cost, and daily maintenance is omitted.

Description

technical field [0001] The invention relates to a well cover device with a mechanical lock, which belongs to the technical field of mechanical lock mechanisms. Background technique [0002] As a public facility on the ground and roads, manhole covers can be seen everywhere, and public manhole covers are often left unattended at night, so public manhole covers have become the focus of some thieves, who often steal on the ground and roads at night Manhole covers, the consequences of their theft to society are very harmful. Due to the loss of manhole covers, sometimes it will cause great harm to pedestrians and vehicles, and sometimes even directly cause casualties and damage to vehicles, and it is impossible for municipal departments to completely take care of public manhole covers all over the urban area and on the road, but Once damage to people or vehicles is caused, the victim will sue the public management department to court. There are too many such things, and the muni...

AI Technical Summary

Problems solved by technology

Due to the loss of manhole covers, sometimes it will cause great harm to pedestrians and vehicles, and sometimes even directly cause casualties and damage to vehicles, and it is impossible for municipal departments to completely take care of public manhole covers all over the urban area and on the road, but Once damage to personnel or vehicles is caused, the victim will sue the public management department in court. There are too many such things, and the municipal department is very helpless about this phenomenon.

In order to prevent criminals from stealing manhole covers, we use simple machinery to make a mechanical lock device manhole cover. This anti-theft device can only be opened with a special cover opener tool made of simple machinery. Thieves do not have special machinery. Tool cannot open manhole cover

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