A flap gate with adjustable water storage level

Abstract

Disclosed is a flap gate with adjustable storage water levels. The flap gate with the adjustable storage water levels comprises a gate, a hinge, a first buttress, a second buttress and an adjustable balance weight, wherein the first buttress is located on downstream of the gate, the second buttress is located on downstream of the first buttress, one end of the hinge is connected with the upper end of one side of the first buttress close to upstream, the other end of the hinge is connected with the gate, the height between the hinge to the top of the gate is larger than that between the hinge and the bottom of the gate, the height of the second buttress is larger than that of the first buttress, the distance between the hinge and upstream side of the top of the second buttress is smaller than that between the hinge and the top of the gate, the height of the second buttress is adjustable, the adjustable balance weight is installed on the lower portion of the gate, and the weight of the adjustable balance weight is adjustable. By means of the flap gate with the adjustable storage water levels, the storage water levels of the flap gate are adjustable and controllable, a switch of the gate is light, convenient and flexible, the service life of the gate is prolonged, management and maintenance are facilitated, and operating maintenance costs of the gate are lowered.

Description

technical field [0001] The invention discloses a flap gate suitable for medium and small rivers, and belongs to the technical field of water conservancy engineering. Background technique [0002] The water level of a large number of small and medium-sized rivers in our country is generally low. The application of large gates can easily control the water level in the river, but the cost is too high. If it is applied to small and medium-sized rivers, the cost and maintenance costs are too high. Therefore, there are still many applications of flap gates in small and medium rivers. There are many examples of successful application of flap gates in reality, including hydraulic flap gates, multi-hinge flap gates and other different types of flap gates. [0003] The flap gates on some small rivers in rural areas are generally upright. When the water flow fluctuates, the gate is easy to shake under the impact of the water flow. It is not stable enough, and it is easy to damage the ...

AI Technical Summary

Problems solved by technology

Once the maximum water storage level of this flap gate is determined, it cannot be changed, and the water storage level cannot be changed according to changes in seasons and flood seasons.

If the water storage level cannot be properly raised during the dry season, it will undoubtedly cause a great waste of resources.

After the flap gate is opened, the center of gravity of the gate shifts to the downstream side of the hinge shaft. Due to the gravity, it is not conducive to the closing of the gate, or the gate is closed with abnormal labor, which often causes accelerated wear of the gate and seriously affects the service life of the gate.

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