2results about How to "Reduce water damage" patented technology

This utility model discloses an interlocking block slope protection for a plain reservoir dam, comprising several evenly arranged slope protection blocks. Each slope protection block has multiple elongated openings along its transverse direction on its front side, extending longitudinally through the block. Multiple longitudinal drainage pipes are installed within each slope protection block, with both ends of each pipe connected to the outside. Furthermore, the drainage pipes are arranged in a matrix along the longitudinal direction. Even further, a connecting pipe is provided between two adjacent drainage pipes in the transverse direction. Furthermore, a rubber pad layer is provided on the outer surface of each slope protection block. Even further, the surface of the rubber pad layer has several raised points. This utility model, by installing multiple drainage pipes inside the slope protection block and providing a rubber anti-slip layer on the outer side, enables the slope protection block to drain rainwater quickly and efficiently without losing stability under temperature changes.

This application discloses a control method for a surface cleaning device. The surface cleaning device includes a floor brush with cleaning components and a suction system for removing dirt. The floor brush includes a housing, on which are a movable front scraper located in front of the cleaning components and a floor scraper located behind the cleaning components and in contact with the ground. When the floor brush moves forward, the front scraper moves upward away from the ground; when the floor brush moves backward, the front scraper moves downward and in contact with the ground. The method includes reducing the operating power of the suction system when the floor brush moves backward. In this application, when the floor brush moves backward, the front scraper contacts the ground, and together with the floor scraper in contact with the ground, the brush chamber and the ground form a relatively sealed space. Under the action of the front scraper, the floor scraper, and the suction airflow of the suction system, the resistance of the floor brush to the ground increases. At this time, reducing the operating power of the suction system can ensure the dirt removal effect of the surface cleaning device and reduce the operating resistance of the floor brush to the ground, thus ensuring the cleaning effect.