Rotatable lifting cast iron well lid

Abstract

The invention provides a rotatable lifting cast iron well lid and belongs to the technical field of municipal engineering. The well lid comprises a fixed support, a lifting support, a well lid body, a hook lock structure and an anti-falling net. The fixed support is installed on a shaft, and the outer wall of the fixed support is provided with steps which spirally ascend anticlockwise. The lifting support is meshed with the outer wall step of the fixed support through the overhanging spiral step on the inner wall of the lifting support, and lifting can be achieved through anticlockwise rotation. The well lid is supported at the top end of the lifting support. The hook lock structure is hinged to a lock lug on the inner wall of the fixed support, and a lock block at the lower end of the hook lock structure can be inserted into a lock hole of the fixed support so as to lock or release the liftable support; the anti-falling net is hung on the upper portion of the hook lock structure. By means of the structure combining spiral meshing lifting and hook lock locking, convenient and multi-stage adjustment of the height of the well lid is achieved, the sunken well lid can be rapidly reset, and the well lid lifting device has the advantages of being stable in structure, easy and convenient to operate, low in maintenance cost, high in safety and the like and is suitable for inspection wells in roads, squares and other places.

Images