Composite mechanism for inspection well safety and anti-falling

Abstract

The invention discloses a safety fall-preventing composite mechanism used for an inspection well. A through hole used for water circulating is formed in a well lid; a fall-preventing screen board comprises a positioning barrel, a plurality of radiant ribs and a plurality of reinforcing ribs, which are distributed in the shape of a spider web by taking the positioning barrel as a center, wherein the axial two end openings of an outer sleeve of a buffer mechanism are sealed by sealing plates; an inner sleeve penetrates through the sealing plates at the axial two end openings of the outer sleeveto be sleeved in the outer sleeve; a plurality of first through holes are formed in the sealing plate at the axial bottom end of the outer sleeve; a plurality of curved blade type strip-shaped shellswhich are distributed in the form of a turbine are arranged on the surface of the sealing plate at the axial top end of the outer sleeve in a convex mode; a plurality of liquid distributing holes areuniformly formed in the same side wall of a housing; the outer wall of one axial end of a central tube is rotatably connected with the inner wall of the inner sleeve through a bearing, and the other axial end of the central tube is movably connected with the positioning barrel; and a plurality of second through holes are formed in the side wall of the central tube. The safety fall-preventing composite mechanism is beneficial for effectively dispersing and weakening strong water flow impact force generated by return overflow, and is beneficial for preventing the well lid from being jacked to lose to cause casualties; and the fall-preventing screen board is stable and safe in structure.

Description

technical field [0001] The invention relates to the technical field of urban road infrastructure, in particular to a safety and anti-drop composite mechanism for inspection wells. Background technique [0002] Manhole cover, the covering on the road, can be seen everywhere in the streets and alleys of cities and towns. It is used to cover roads or deep wells in homes to prevent people or objects from falling. According to the material, it can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers, etc. Usually round. It can be used in green belts, sidewalks, motorways, docks, alleys, etc. [0003] Due to the short-term heavy rainfall and insufficient capacity of drainage pipes, once the pipe network leaks water, the impact force will be greater, and the manhole cover will be lifted up or even fly. Passers-by cannot see the situation under their feet. Accidents of washing away occurred, and vehicle damage and personal...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: most of the prior art uses anti-falling nets to prevent people or foreign objects from falling into the well, and it does not alleviate the problem that the well cover will be lost due to backflow of the pipe network. The present invention provides A composite mechanism for inspection shaft safety and anti-falling that solves the above problems

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