All-nodular cast iron well lid for electric power engineering

Abstract

The invention discloses an all-nodular cast iron well lid for electric power engineering. The well lid comprises a flange plate face, a disc frame, an embedded adhesive tape, elastic locking devices and a plug. The well lid is closely combined with a well frame without abnormal sound, and grains on the surface of the well lid increase the resistance of the well lid and achieve a diversion effect on rainwater in special rainy and snowy weather; the adhesive tape inside the well frame can reduce vibration generated when a vehicle passes through the well lid, and further reduce abnormal sound; the elastic locking devices enable the well lid to tightly fit the well frame, displacement and accidental opening of the well lid are prevented, and the burglary prevention function is further achieved; for constituting materials of the well lid, vermiculate cast iron has good stretch resistance, impact resistance, ductility and tenacity and a great heat conduction effect, and plays an important role in protecting internal electric power facilities.

Description

technical field [0001] The invention relates to a global graphite cast iron manhole cover for electric power engineering, which belongs to the technical field of electric power facilities. Background technique [0002] In electric power construction, manhole cover is an important item used to cover road facilities. On the one hand, it plays a very good role in protecting the power settings in deep wells. On the other hand, it can also prevent people or some objects from falling into deep wells. At present The manhole covers on the road surface are mainly cement manhole covers. When vehicles pass by, there is a loud sound, and it is easy to slip in rainy and snowy weather. Heavy objects are often rolled and easily displaced, which will cause the manhole cover to break and cause people or objects to fall. It is a great safety hazard. In addition, there are some metal manhole covers on the road at present, but due to the technical problems of the manhole covers, there are a ser...

AI Technical Summary

Problems solved by technology

[0002] In electric power construction, manhole cover is an important item used to cover road facilities. On the one hand, it plays a very good role in protecting the power settings in deep wells. On the other hand, it can also prevent people or some objects from falling into deep wells. At present The manhole covers on the road surface are mainly cement manhole covers. When vehicles pass by, there is a loud sound, and it is easy to slip in rainy and snowy weather. Heavy objects are often rolled and easily displaced, which will cause the manhole cover to break and cause people or objects to fall. It is a great safety hazard. In addition, there are some metal manhole covers on the road at present, but due to the technical problems of the manhole covers, there are a series of problems such as being stolen or rusted for a long time.

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