Rainwater grate with waterlogging stopping function for urban-underground-space entrance and exit part

Abstract

The invention provides a rainwater grate with the waterlogging stopping function for an urban-underground-space entrance and exit part. The rainwater grate is composed of a base, a catchment groove, awater draining channel, a supporting column, a rainwater grate body, a flap valve hinge, a flap valve, a baffle, a balance weight, first water bag supports, containing grooves, containing holes, a second water bag support, an upturning gate, an upturning gate hinge, a rotating shaft, a water feeding pipe and a water discharging pipe. When rainfall is smaller than the urban-design flood control standard, and the road surface water level is lower than the urban-design flood level, the rainwater grate with the waterlogging stopping function for theurban-underground-space entrance and exit part is in the lying state; when rainfall is larger than the urban-design flood control standard, and the load surface water level is higher than the urban-design flood level, a water feeding pipe valve isopened to supply water to the water bag supports, and the rainwater grate with the waterlogging stopping function for theurban-underground-space entrance and exit part is uplifted and stands to stop urban waterlogging and guarantee the urban-underground-space safety. The rainwater grate is simple in structure, convenient to operate, good in water stopping effect and free of dismantling cost and isnot capable of consuming electric energy, and a small amount of water needs to be only consumed during starting and stopping every time.

Description

technical field [0001] The invention belongs to the technical field of water conservancy engineering, in particular to a rainwater grate with the function of blocking waterlogging at the entrance and exit of urban underground space. Background technique [0002] In recent years, with the rapid development of China's economy and the acceleration of urbanization, great changes have been brought about in the process of precipitation and runoff. The problem of insufficient drainage capacity in cities has become prominent. Once heavy rainstorms occur in urban areas, waterlogging occurs frequently. In addition, in recent years, the southern Frequent rainstorms and abnormal rainfall in various provinces seriously threaten the safety of people's lives and property and the effective operation of urban underground spaces; Various improvements have been made, such as the use of rubber bags to fill water, and the use of different forms of components to assemble... However, the raids of ...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the rapid development of China's economy and the acceleration of urbanization, great changes have been brought about in the process of precipitation and runoff. The problem of insufficient drainage capacity in cities has become prominent. Once heavy rainstorms occur in urban areas, waterlogging occurs frequently. In addition, in recent years, the southern Frequent rainstorms and abnormal rainfall in various provinces seriously threaten the safety of people's lives and property and the effective operation of urban underground spaces; Various improvements have been made, such as the use of rubber bags to fill water, and the use of different forms of components to assemble... However, the raids of heavy rains are often too late to complete the above work smoothly. The safety of people's lives and property is seriously threatened. Whenever a heavy rainstorm falls suddenly, underground garages or basements in residential areas will always be flooded, causing a large number of vehicles or important items to be flooded by rain, which will bring great harm to people. Even if some communities will urgently deploy sandbags to prevent flooding or use anti-flooding fences to prevent the underground space from being flooded when the rainwater increases to a certain extent, it is very inconvenient to arrange these facilities in the rain, and if they are arranged in advance It hinders the normal use of the road, and after the rainstorm, it needs to be manually removed, which is time-consuming and laborious; the traditional method has low work efficiency, poor water-retaining effect, and high demolition cost; Chinese patent CN 107476248 A Buried flood wall driven by floating ball pendulum , CN107653836 A The embedded flood wall driven by lifting push rod, CN 107476247 A The embedded flood wall pulled by pulleys, etc., have improved the traditional method, and the working principle is: the water retaining plate is in a hidden state during the normal non-waterlogged period, It does not affect the normal use of the channel. When waterlogging is formed, only a small amount of rainwater enters the floor drain in the early stage, and the float slideway can be filled with water. Under the action of the buoyancy of the float, it can be pushed by a straight rod or a lever or a rope Bypassing the pulley traction, the water retaining plate is driven to expand upward to retain water, which solves the situation that the traditional method cannot deal with sudden rainstorms; the above-mentioned patented technology is reasonable in concept, but it cannot be implemented in reality. For example, in southern China, the annual rainfall is large, And the rainfall time is long, and the rainfall is less than the urban design flood control standard. It is normal for the road area below the urban design flood level. It is more normal for vehicles to enter the underground space. When the vehicle enters the underground space, the road will naturally The accumulated water is driven into the underground space. Using the above-mentioned patented technology, as long as the accumulated water on the road surface is driven into the underground space by the vehicle, "even if only a small amount of rainwater enters the floor drain, the floating ball can pass under the action of buoyancy." Straight rod push or lever prying or rope around the pulley traction, drive the water baffle to expand upward to block the water, which will form an "over-protection" state, when the water on the road is lower than the urban design flood level and people travel normally However, the water barrier is in a raised state, and vehicles and pedestrians cannot enter and exit the underground space, which seriously affects people's lives

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