Multi-stage folding hydraulic dam

Abstract

The invention discloses a multi-stage folding hydraulic dam. The dam comprises a base and a dam body, wherein an equipment pit is excavated in the downstream direction of the dam body, the dam body isdivided into at least two stages of dam bodies, the adjacent stages of dam bodies are movably connected, a sliding groove is formed in the equipment pit, movable bases are movably arranged on the sliding groove, a hydraulic cylinder is vertically arranged on each movable base, and the top output end of each hydraulic cylinder is movably connected with the downstream side edge of the correspondinggraded dam body. A water-blocking film assembly covers the equipment pit. The multi-stage folding hydraulic dam has the advantages that independent turnover of each stage of dam body is achieved, sothat water pressure resistance borne by the dam bodies can be reduced through step-by-step turnover when the dam bodies are opened or closed, and the process of opening or closing the dam bodies is more stable; more labor is saved in the jacking process when the dam body is horizontally laid down, and the requirement on a hydraulic cylinder is lowered; damage to equipment such as a hydraulic cylinder and a sliding groove caused by water flowing over the dam body is effectively avoided, and the service life of the equipment is prolonged; the water blocking effect of the whole dam body is good.

Description

technical field [0001] The invention relates to the technical field of hydraulic dams, in particular to a multi-stage folding hydraulic dam. Background technique [0002] At present, many dams of small and medium-sized reservoirs or dams of rivers use hydraulic dams, which are easy to control when opening and closing, and can realize rapid water storage or flood discharge. However, since the traditional hydraulic dam adopts an integral structure and does not have a specific gate, it is turned over as a whole when opening and closing the gate, which is subject to relatively large water pressure resistance, especially when closing the gate, the requirements for the hydraulic cylinder relatively high. In addition, traditional hydraulic cylinders are installed with a rotating base, which gradually erects when jacking up, and lies down at the bottom of the dam body when shrinking, so that when the hydraulic cylinder starts to jack up in the lying down state, due to the hydraulic...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-stage folding hydraulic dam, which solves the problems of large water pressure resistance when the traditional hydraulic dam is overturned, high requirements for hydraulic cylinder top lift, and hydraulic cylinders are easily damaged by water erosion and soaking.

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