A safety manhole cover with automatic drainage

Abstract

The invention discloses a safety inspection well lid for automatic drainage. The safety inspection well lid comprises an upper lid and a well lid body; the upper lid covers the well lid body; the surface of the upper lid has multiple water seepage holes and water passing holes; top lids are arranged in the water passing holes, and are arranged above movable plates; pistons are arranged among the movable plates, and can move up and down when the quantity of water in a water tank changes to open and close the water passing holes so as to realize an automatic opening / closing function; and the completeness of the well lid cannot be influenced in closing. The safety inspection well lid is a safer well lid, has multiple dirt preventing functions and failure preventing settings, and can realize a maintenance-free effect.

Description

technical field [0001] The invention relates to the field of underground water transportation, in particular to a safety inspection well cover with automatic water release. Background technique [0002] At present, the urban underground pipelines are very developed. Some underground pipelines are responsible for the transportation of groundwater or the laying of other cables, and the exits of the pipelines are usually equipped with manhole covers. The manhole covers generally have the dual functions of protecting the opening and draining water at the same time. Present manhole cover generally adopts manual opening and closing, and usually either keeps normally closed, or keeps normally open, and like this, either causes huge potential safety hazard, or can cause poor drainage, therefore, how to solve this problem is that the technical staff of this field has always been Thinking about the problem. Contents of the invention [0003] The purpose of the present invention is ...

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Problems solved by technology

[0002] At present, the urban underground pipelines are very developed. Some underground pipelines are responsible for the transportation of groundwater or the laying of other cables, and the outlets of the pipelines are usually equipped with manhole covers. The manhole covers generally have the dual functions of protecting the opening and draining water at the same time. The current manhole cover is generally opened and closed manually, and it is usually kept closed or kept open. In this case, it will either cause a huge safety hazard or cause poor drainage. thinking about

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