A manhole cover for emergency drainage

Abstract

The invention discloses a well lid for emergency drainage. The well lid comprises a well lid supporting base, a lid plate and a plurality of windows, wherein the lid plate is matched with the well lid supporting base for forming a well lid; the windows are formed on the well lid supporting base; the lid plate comprises rotating plates which are the same as the windows in shape and quantity; the rotating plates are rotatably connected with the windows through connection shafts; the well lid further comprises a rotation piece and a transmission piece; the rotation piece is connected with the well lid supporting base and can rotate forwards and backwards; and the transmission piece is arranged between the rotation piece and the rotating plates, and is used for converting the rotation of the rotation piece into a force to drive the rotating plates to rotate forwards and backwards around the connection shaft, so as to open and close the windows. According to the well lid provided by the invention, the rotating plates rotate forwards and are entirely opened under the effect of the rotation piece and the transmission piece, drainage is fast performed, and emergency drainage is realized. In the drainage process, as long as the rotation piece is not rotated, the windows keep an opened state all along, so as to avoid blocking of drainage openings. After the drainage is finished, the rotation piece is reversely rotated so that the rotation piece is reversely closed under the driving of the transmission piece.

Description

technical field [0001] The invention relates to a drainage manhole cover, in particular to a manhole cover which can be used for emergency drainage, prevent urban waterlogging and at the same time ensure the safety of pedestrians. Background technique [0002] In urban life, when it rains, a large amount of rainwater tends to accumulate on the road. In order to speed up the discharge of the accumulated water, the manhole cover on the road is often lifted and placed on the side of the road to speed up the dredging of the accumulated water, but often due to dredging Forget to restore the manhole cover to its original position after nursing or after the accumulated water is discharged, so that the entrance is directly exposed on the road, and passing pedestrians or vehicles fall into or get trapped in the well without noticing it, especially at night, which is more likely to cause safety hazards. ACCIDENT. [0003] In order to solve the above problems, Chinese patent document ...

AI Technical Summary

Problems solved by technology

[0007] For this reason, the technical problem to be solved by the present invention lies in the drainage well cover in the prior art, the cover plate is easy to fall down by itself so that the well cover is closed, and the water outlet is easy to block, and then a kind of well cover can be kept open without clogging. Manhole covers for emergency drainage

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