Nodular cast iron well lid with anti-falling protection structure

Abstract

The invention provides a nodular cast iron well lid with an anti-falling protection structure, and relates to the technical field of nodular cast iron well lids, the nodular cast iron well lid comprises a base, a well lid main body and an anti-falling assembly, one end of a clamping plate is hinged to a connecting seat, a mounting chamber is connected to the inner wall of the base, a telescopic rod is fixedly connected in the mounting chamber, and the anti-falling assembly is arranged on the well lid main body. The output end of the telescopic rod abuts against the side wall of the clamping plate, the retractor is installed on the inner wall of the installation chamber, one end of the connecting rope is connected to the output end of the retractor in a winding mode, the other end of the connecting rope is tied to the side wall of the clamping plate through the hanging ring, the well lid body is arranged above the base, and the clamping groove is bonded to the bottom of the well lid body. Through the designed anti-falling assembly, the clamping plates can be adjusted to be evenly distributed in the inner cavity of the base through the telescopic rods, then the clamping grooves in the bottom of the well lid body are matched with the clamping plates, the well lid body covers the base in a sealing mode, the strength of the whole nodular cast iron well lid is improved, falling of the whole nodular cast iron well lid is avoided, and the safety of the whole nodular cast iron well lid is greatly improved.

Description

technical field [0001] The invention relates to the technical field of ductile iron manhole covers, in particular to a ductile iron manhole cover with an anti-fall protection structure. Background technique [0002] Ductile iron manhole covers are generally divided into round and square. In urban road administration, round manhole covers are generally used, because round manhole covers are not easy to tilt, which can better protect the safety of pedestrians and vehicles. Various well facilities in urban roads Requires a lot of manhole covers. [0003] The manhole covers currently used are mostly cast iron covers or reinforced concrete manhole covers. The strength of the reinforced concrete manhole covers is insufficient and the damage is serious. At the same time, due to its heavy weight, it is difficult to open the equipment of the maintenance well. Pedestrians and vehicles fall into the well, bringing economic losses and adverse social impacts. [0004] The existing manh...

AI Technical Summary

Problems solved by technology

[0003] Most of the manhole covers currently used are cast iron covers or reinforced concrete manhole covers. The strength of reinforced concrete manhole covers is insufficient and the damage is serious. At the same time, due to their weight, it is difficult to self-start the maintenance well equipment. However, cast iron manhole covers are expensive, vibrate loudly, and are often lost. Pedestrians and vehicles fall into wells, causing economic loss and adverse social impact

[0004] The existing manhole cover is in a state of active connection with the ground. When it is repeatedly rolled by vehicles, it will continue to collapse downwards, and the middle end of the manhole cover is often the weakest point. If it is not strengthened and stabilized, it will cause a fall. , reduce the safety of driving on the road, based on this, the present invention designs a nodular cast iron manhole cover with an anti-fall protection structure to solve the above problems

Images