Hydraulic slow-closing check valve for water conservancy project

Abstract

The invention relates to the technical field of water conservancy projects, and discloses a hydraulic slow-closing check valve for a water conservancy project. The hydraulic slow-closing check valve comprises a valve body, the middle part of the inner cavity of the valve body is fixedly connected with a limiting seat, the inner cavity of the valve body is movably connected with a valve clack positioned at one end of the limiting seat in a sleeved mode, and the right end of the inner cavity of the valve body is fixedly connected with a first fixed seat. According to the hydraulic slow-closing check valve, by additionally arranging a slow opening mechanism, when liquid needs to be conveyed, the liquid is continuously conveyed into a pipeline through a water pump, flows to the left side of the check valve and is continuously accumulated at the left side of the check valve, so that the liquid pressure reaches the degree that the valve clack can be pushed open, after the valve clack is pushed for a certain distance under the action of the liquid pressure, liquid flows through a gap of the valve clack, meanwhile, subsequent liquid impacts a rotating wheel to enable the rotating wheel torotate slowly, the valve clack compresses a spring under the action of a threaded rod and moves towards a first fixing seat, and therefore the check valve is opened slowly under the action of the threaded rod and liquid pressure.

Description

technical field [0001] The invention relates to the technical field of hydraulic engineering, in particular to a hydraulic slow-closing check valve for hydraulic engineering. Background technique [0002] Water conservancy projects are projects built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and rejuvenating profits. Also known as water engineering, water is an indispensable and precious resource for human production and life, but its natural state does not fully meet human needs. Only by building water conservancy projects can water flow be controlled, floods prevented, and water volume adjusted. Regulation and distribution to meet the needs of people's life and production for water resources, water conservancy projects need to build different types of hydraulic structures such as dams, dikes, spillways, sluices, water inlets, channels, waterways, rafts, fishways, etc. to achieve its goals. [0003] Check valv...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the use of the existing check valves proposed in the background technology, the present invention provides a hydraulic slow-closing check valve for water conservancy projects, which has the advantages of hydraulic slow-closing and slow-opening, and solves the above-mentioned background technical issues raised in technology

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