Automatic drainage type one-way valve for preventing water from entering

Abstract

The invention discloses an automatic drainage type one-way valve for preventing water from entering. The automatic drainage type one-way valve comprises a valve body, a rotating shaft is installed ina valve cavity of the valve body and sleeved with a shaft sleeve, a valve plate A and a valve plate B are installed at the two ends of the shaft sleeve, and one end of the valve plate A extends on andis attached to the inner side wall of one face of the valve body; the other end of the valve plate B extends on and is attached to the inner side wall of the other face of the valve body; and an arc-shaped plate piece is arranged between the valve plate A and the valve plate B, and comprises a long base plate, a short base plate, an inserting plate and springs. According to the automatic drainagetype one-way valve for preventing water from entering, by arranging the movable valve plate A and the movable valve plate B, when the valve body drains water, the valve plate A and the valve plate Bcan be opened by water flow to open a valve port so that the water flow can pass and be drained, and the purpose of automatic drainage is achieved; and after drainage is finished, the valve plate A and the valve plate B are pushed to the original positions under the action of the springs arranged in the arc-shaped plate piece, and therefore the drained water is prevented from flowing back into a resident room from the valve body.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to an automatic drainage type one-way valve for preventing water ingress. Background technique [0002] As home decoration materials, engineering construction materials and home living facilities, sewer pipes have many unsatisfactory problems, especially the sewage and drainage pipes of users at the bottom of the building often have sewage backflow, which directly affects the living environment of users . [0003] In order to prevent the backflow of sewage in the existing sewer, valves are usually installed in the pipeline, and the sewage is discharged through the opening and closing of the valve and the sewage is prevented from backflowing into the resident's room; however, the traditional valves are mostly manually controlled. Very inconvenient, time-consuming and laborious. Contents of the invention [0004] The object of the present invention is to provide an automatic draina...

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Problems solved by technology

[0002] As home decoration materials, engineering building materials and home living facilities, sewer pipes have many unsatisfactory problems, especially the sewage and drainage pipes of users at the bottom of the building often have sewage backflow, which directly affects the living environment of users

[0003] In order to prevent the backflow of sewage in the existing sewer, valves are usually installed in the pipeline, and the sewage is discharged through the opening and closing of the valve and the sewage is prevented from backflowing into the resident's room; however, the traditional valves are mostly manually controlled. Very inconvenient, time-consuming and labor-intensive

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