Drainage well opening anti-falling and warning device

Abstract

The invention discloses a drainage well opening anti-falling and warning device, and belongs to the field of a drainage well opening protective device. The drainage well opening anti-falling and warning device comprises a device main body, wherein supporting parts, which can expand outwards along the center of the device main body are arranged on the device main body; clamping parts are arranged at the outward-expanding ends of the supporting parts; the supporting parts can move up and down along the device main body; the supporting parts, when moving downwards, can expand outwards in a radial mode along the center of the device main body, and the clamping parts on the supporting parts can correspond to the profile edge of a drainage well opening and can clamp the profile edge; and limiting mechanism, by which the supporting parts are limited from moving upwards, are additionally arranged on the device main body. The drainage well opening anti-falling and warning device provided by the invention can become folded or expanded; when the drainage well opening anti-falling and warning device is expanded, the clamping parts on the supporting parts can take a clamping effect in corresponding to the profile edge of the drainage well opening; and since the supporting parts are expanded in a radial mode, namely a circular barrier is formed when the supporting parts are expanded, the supporting parts can be fixedly arranged on the drainage well opening, and in addition, foreign objects are prevented from becoming fallen.

Description

technical field [0001] The invention relates to the field of protection devices for drainage wellheads, in particular to an anti-falling and warning device for drainage outlets. Background technique [0002] Insufficient drainage facilities in many cities in my country, coupled with the impact of extreme weather and weather, make 62% of my country's cities extremely prone to serious urban waterlogging due to heavy rainfall, causing large-scale flooding of urban roads and low-lying areas. In order to speed up drainage, municipal managers often open the drainage manhole cover. However, there are serious safety hazards in the opened drainage manhole cover. Once the care is not in place, it is very easy for pedestrians to fail to observe the state of the road surface due to the depth of the accumulated water, causing pedestrians to fall into the well, or vehicle traffic accidents. In recent years, the tragedy of "cannibalism" in drainage wells has occurred from time to time. Ho...

AI Technical Summary

Problems solved by technology

At present, in most cases, after the drainage manhole cover is opened, an anti-fall net is added or a warning sign is set up; however, general anti-fall measures often have heavy components, are not portable, and cost high, and are inconvenient to store because they take up a lot of space

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