Float-type automatic control flap valve

Abstract

The invention relates to a float-type automatic control flap valve and belongs to the technical field of water supply and drainage equipment. The float-type automatic control flap valve comprises a valve body with a flow pass, a cylindrical pipe is fixed to the outer wall of the valve body, the center section in the longitudinal direction of the pipe is of a trapezoidal structure with the short top end and the long bottom end, an inclined flow pass port is formed in the outer end face of the pipe, the outer side of the valve body is hinged to one end of a support rod, the other end of the support rod is fixedly connected with a float, the end, hinged to the valve body, of the support rod is fixedly connected with one end of a connection rod, the other end of the connection rod is hinged to one end of a balance weight lever frame, the end, hinged to the connection rod, of the balance weight lever frame is fixedly provided with a balance weight, the middle section of the balance weight lever frame is hinged to the outer wall of the top of the pipe, and the other end of the balance weight lever frame is hinged to the outer side of a valve plate. When the valve plate is closed, the inner side of the valve plate makes contact with the outer end face of the pipe in a sealed mode. The float-type automatic control flap valve is provided with the stainless steel float and the balance weight lever frame, and the valve plate is controlled to be opened or closed according to the water level.

Description

technical field [0001] The invention belongs to the technical field of water supply and drainage equipment, and in particular relates to a buoy type self-control flapping door. Background technique [0002] The existing flap door cannot be intelligently and automatically controlled, and has little flexibility. Due to the heavy weight of the door panel itself and the poor sealing performance after closing the door, it will cause a large energy loss to the passing water flow and the gap between the door panel and the door body when the door is closed. Strong impact and leakage of water body after closing the door, etc., and the opening force of the existing flap door after installation, and the flatness between the door panel and the sealing surface of the door body after closing the door are difficult to guarantee, so the large water loss caused by overflow is The major drawback of existing flap doors. Contents of the invention [0003] The object of the present invention ...

AI Technical Summary

Problems solved by technology

[0002] The existing flap door cannot be intelligently and automatically controlled, and has little flexibility. Due to the heavy weight of the door panel itself and the poor sealing performance after closing the door, it will cause a large energy loss to the passing water flow and the gap between the door panel and the door body when the door is closed. Strong impact and leakage of water body after closing the door, etc., and the opening force of the existing flap door after installation, and the flatness between the door panel and the sealing surface of the door body after closing the door are difficult to guarantee, so the large water loss caused by overflow is The main drawback of the existing flap door

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