Overturning bridge drain hole closing device

Abstract

The invention relates to an overturning bridge drain hole closing device. An upper clamping cover is located above a base, the base is hinged to the upper clamping cover through a hinge support, a hinge pin successively penetrates a second pin hole, a first pin hole and a torsional spring from one end of the base, and the other end of the base is fixed by a nut to form a hinge support; the upper clamping cover comprises a steel movable cover which comprises a cylinder and a circular truncated cone, wherein a first sealing rubber ring is arranged on the circular truncated cone, and a guard barbutton connected to a cement guard bar is arranged on the upper clamping cover; the base comprises a ring-shaped steel holding part which is sleeved on a bridge drain hole, the wall surface of an inner hole of the steel holding part is circular truncated cone-shaped, the wall surface of the inner hole is matched with the circular truncated cone of the upper clamping cover, a second rubber sealingring is arranged on the wall surface of the inner hole, and the first sealing rubber ring is connected to the second rubber seal ring; and the torsional spring is mounted on the hinge support. The overturning bridge drain hole closing device has the advantages of being simple and convenient to mount, small in construction quantity, convenient to detach and good in closing performance.

Description

technical field [0001] The invention relates to a safety guarantee technology for highway bridge structures, and in particular relates to a sealing device for drain holes of super-large bridges. Background technique [0002] With more and more vehicles carrying dangerous goods and chemicals in road traffic, the types of dangerous goods and chemicals are becoming more and more complex. Once a leakage accident occurs, it will cause pollution to local human safety and the surrounding environment, and some even cause ecological disasters. , especially for road bridges across rivers, rivers, and seas and road bridges near drinking water sources. [0003] At present, most of the bridge deck runoff collection systems on highway bridges are composed of bridge deck drainage pipes and collection pools. The drainage pipe is connected with the bridge deck drain hole by using PVC pipe, and the bridge deck runoff collected by the drainage pipe is collected in the collection pool, which i...

AI Technical Summary

Problems solved by technology

However, for those super-large bridges crossing rivers and seas, it is impossible to install bridge deck runoff collection devices due to reasons such as bridge load bearing, driving safety, the capacity of the collection pool, and the construction site of the collection pool. row" way

This means that once a leakage accident of liquid dangerous goods occurs on this type of super-large bridge, the liquid dangerous goods will directly flow into the river and sea environment through the weep holes, which will cause great damage to the ecological environment.

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