A flat bottom valve gate with automatic switch

Abstract

The invention discloses an automatically opened and closed flat-bottom valve gate which is arranged on a stilling pool and a horizontal alley. The automatically opened and closed flat-bottom valve gate is characterized by comprising a tapered door body valve gate, an arched bracket, water seals of notches around the arched bracket, support shafts and upper and lower movable switches of the support shafts, wherein the tapered door body is hollow; the cavity of the tapered door body contains a compressed airbag which has a big upside and a small downside; multiple water inlets are formed in the upper side of the tapered valve gate while a water outlet hole is formed in the downside. The shafts are arranged at both the upper part and the lower part of the valve gate and are connected to the arched bracket; a gas conveying pipe and a gas valve pipe both for inflating and deflating the airbag are arranged at two sides of the arched bracket. The valve gate is internally provided with a gas heating device for heating and warming the gas. The gas valve can seal the water automatically when being closed and can send a signal when discharging water successfully. The automatically opened and closed flat-bottom valve gate has the advantages of being simple in structure, safe, labor-saving, opened and closed automatically, and the like.

Description

technical field [0001] The invention relates to the technical field of water conservancy equipment, and more specifically relates to a flat-bottomed valve gate that is generally used in small and medium-sized reservoirs and can be opened and closed automatically. Background technique [0002] At present, more than 90% of the small and medium-sized reservoirs have similar switches for water storage, water use, and irrigation. Traditionally, a ladder platform is designed from top to bottom at the position of the horizontal alley according to the water head, and each platform is equipped with a circular hole facing the sky. There is a piston, pull out the piston to discharge water, put the piston on, especially to prevent water leakage, strengthen the seal to shut off the water, all by manual operation, and divert the water to the lying alley-stilling pool-culvert alley-to reach the destination. The traditional piston valve gate has the following defects: [0003] 1. There are...

AI Technical Summary

Problems solved by technology

[0003] 1. There are many orifices on the steps from top to bottom, and the piston must be set well in three sunny days and two rainy days, and the seal needs to be reinforced in time, so it is easy to miss the opportunity of collecting rain energy and wasting the energy of water head

[0004] 2. The piston is immersed in water to start, and there is no air to fill the space. It is not only the self-powered energy of the piston, but also aggravated by the negative pressure of the atmospheric pressure, which increases the weight and irresistible resistance. mouth area is small

[0005] 3. The whole part is immersed in water, the deeper the water covered, the more difficult it is to start the piston, the manual operation is too labor-saving, and the safety factor is too low

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