Low-resistance tubular automatic sealing device

Abstract

The invention discloses a low-resistance tubular automatic sealing device. The low-resistance tubular automatic sealing device comprises an upper opening part and a lower opening part. The upper opening part has a circular pipe shape. The lower opening part is a concave semicircle-shaped pipe. A lower opening of the lower opening part has a gap structure. The upper opening part and the lower opening part are connected by a connection part. The low-resistance tubular automatic sealing device is prepared from an elastic material. A liquid flows into the low-resistance tubular automatic sealing device from the upper opening part. When the liquid flows through the lower opening part, the wall of the concave semicircle-shaped pipe automatically expands, and an expanding amount can be adjusted automatically according to a flow. After the liquid flows through the lower opening part, the wall of the concave semicircle-shaped pipe automatically recovers the original sealing state. The low-resistance tubular automatic sealing device realizes one-way flowing of a liquid under the condition of the minimum water head loss, automatically prevents a downstream liquid from flowing upward, and automatically prevents upward diffusion of downstream germs and injurious insects.

Description

technical field [0001] The invention relates to the field of drainage systems, in particular to a low-resistance pipe-type automatic sealer. Background technique [0002] Due to the large resistance of the check valve, the high head loss, and the blockage of the sewage pipe by the actuator, the gravity drainage system cannot use a conventional check valve, which will lead to backflow and backflow of the drainage system and pollution of dirty gas in the pipe. Indoor environment, the phenomenon that pests and diseases spread along the pipeline system, such as the return of water from bathroom sanitary ware or floor drains, such as the odor of the outdoor pipe network entering the room through the sewer, such as the spread of airborne viruses through the sewer, such as the passage of cockroaches, mice and other pests Sewers go into the house, etc. Even with pressurized drainage systems, backflow often occurs due to the unreliability of mechanical check valves, resulting in flo...

AI Technical Summary

Problems solved by technology

[0002] Due to the large resistance of the check valve, the high head loss, and the blockage of the sewage pipe by the actuator, the gravity drainage system cannot use a conventional check valve, which will lead to backflow and backflow of the drainage system and pollution of dirty gas in the pipe. Indoor environment, the phenomenon that pests and diseases spread along the pipeline system, such as the return of water from bathroom sanitary ware or floor drains, such as the odor of the outdoor pipe network entering the room through the sewer, such as the spread of airborne viruses through the sewer, such as the passage of cockroaches, mice and other pests sewer into the house, etc.

Even the pressure drainage system often has backflow due to the unreliability of the mechanical check valve, causing the basement to be flooded

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