Diaphragm type barrier

Abstract

The invention relates to the technical field of drainage, and particularly relates to a diaphragm type barrier. The diaphragm type barrier comprises a water inlet pipe, a water outlet pipe and a barrier core body used for communicating the water inlet pipe with the water outlet pipe, wherein the barrier core body comprises a core body pipe, a barrier rubber sheet and an outer pipe; a U-shaped notch is formed in the side wall of the core body pipe; the edge of the barrier rubber sheet is connected to the side wall of the U-shaped notch of the core body pipe; and the outer pipe is arranged on the outer side of the core body pipe and the outer side of the barrier rubber sheet in a sleeving mode. When the barrier rubber sheet bears fluid impact force from the inlet direction, the barrier rubber sheet deforms, and an opening is formed between the bottom of the barrier rubber sheet and the inner wall of the notch end of the core body pipe. When the barrier rubber sheet is in a natural stateor bears fluid impact force from the outlet direction, the bottom of the barrier rubber sheet is attached to the inner wall of the notch end of the core body pipe to seal the opening. The diaphragm type barrier plays a role in preventing polluted air and odor backflow through diaphragm type barrier. The diaphragm type barrier can be installed in a pipeline structure to serve as a part of a pipeline, and the application environment is expanded.

Description

technical field [0001] The invention relates to the technical field of drainage, in particular to a membrane type barrier. Background technique [0002] The pipeline blocker referred to in this article is a general term for devices that prevent polluted air and odor backflow in the drainage pipeline, and there are various methods such as deodorant sealing parts, deodorant floor drains and one-way valves. [0003] An existing class of pipeline blockers adopts the principle of floating balls and water seals for blocking. The effluent received by the first connecting pipe of this type of pipeline blocker flows to the second connecting pipe through the moving channel of the blocking ball. To close the moving channel of the barrier ball, thereby preventing the reverse flow of polluted air and odor. Specifically, reference can be made to a drainage trap described in the Chinese invention patent publication whose publication number is "CN101155964A", which includes a bottomed cyl...

AI Technical Summary

Problems solved by technology

[0005] 1. The above scheme adopts the principle of floating ball, so it needs to be controlled based on the gravity of the floating ball and the buoyancy of the fluid; thus limiting the movement of the floating ball in the up and down direction, and the above-mentioned drainage traps can only be arranged horizontally, not vertically; Therefore, the above-mentioned structure is not suitable for the barrier of the sewer; or at least the above-mentioned structure can only be installed in the horizontal pipe position of the sewer, which is very troublesome

[0006] 2. Based on the principle of the floating ball, it not only limits the arrangement direction of the drainage trap, but also makes it difficult to grasp the weight of the floating ball

However, due to the existence of the above-mentioned openings during the molding process, in the manufactured product, the cut between the protrusion and the V-shaped cut surface is not tight; the effect of preventing air pollution and odor backflow is not good.

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