3results about How to "Prevent waterlogging" patented technology

This invention discloses a permeable ecological dam, a farmland irrigation system, and a method for regulating water levels in ditches. The permeable ecological dam includes multiple water-retaining dam segments arranged within the ditch, with the top height of the upstream water-retaining dam segment higher than the top height of the adjacent downstream water-retaining dam segment. Permeable dam segments are arranged between adjacent water-retaining dam segments, with the top height of the permeable dam segments falling within the range of the top heights of the adjacent water-retaining dam segments. Plants are grown on the top of the permeable dam segments. Multiple pipes are buried from bottom to top within the permeable ecological dam, with the upstream end of each pipe open for inserting a plug. Multiple permeable holes are provided on the pipes at the locations of each permeable dam segment, allowing water entering from the upstream of the ditch to pass through and enter the corresponding permeable dam segment. The water entering the permeable dam segment overflows to the downstream of the ditch. This invention can regulate the water level in the ditch to achieve multi-stage water level control and realize multi-stage permeability.

The utility model discloses a rainwater diversion drainage awning relates to awning technical field, including awning main part and drainage strip, the inside lower extreme of awning main part is connected with the installation ring, and the inside connection of installation ring has the windproof rope main part, the inside both sides of awning main part are connected with the support rod, and the lower middle part of awning main part is provided with counterweight pedestal, and the upper middle part of counterweight pedestal is installed with telescopic adjusting lever, the outside lower extreme of telescopic adjusting lever is installed with the support stabilizing block simultaneously, the outside middle end of telescopic adjusting lever is connected with the fastening adjusting part, the outside of awning main part is additionally provided with drainage strip, and the inside lower extreme of awning main part is provided with black glue coating, and the upper end of black glue coating is provided with nylon layer, and the upper end of nylon layer is provided with polyester base layer. This rainwater diversion drainage awning can guide rainwater through various ways, avoid the accumulation of rainwater in the middle of awning, improve the overall practicality and use efficiency of drainage awning.

This invention discloses a method for using a mobile steel dam, comprising a pair of steel dam lifting guide rails and a mobile steel dam body. The mobile steel dam body includes a pontoon and a water injection / drainage system. The steps for closing the dam are as follows: A1. Move the mobile steel dam body to a position matching the steel dam lifting guide rails and moor it to a mooring bollard using nylon ropes or steel wire ropes; A2. Install lifting limit blocks on the pontoon, and connect each lifting limit block to the corresponding steel dam lifting guide rail to form a sliding pair, so that the pontoon can only move up and down along the length direction of the steel dam lifting guide rail; A3. Inject water into the pontoon through the water injection / drainage system, causing the pontoon to sink to the bottom of the river or waterway along the length direction of the steel dam lifting guide rail, thus completing the dam closure; the steps for opening the dam are the reverse of the dam closure steps. The application of this invention can solve problems such as backflow of water, wind and wave impact, ship navigation safety, and flooding in the surrounding area during flood season and strong winds / typhoons.