Drain trap

Abstract

The invention discloses a drain trap, which comprises a trap body, a water seal bowl and a water seal cylinder, wherein the bottom surface of the trap body 6 is bulged to form a vertex part, and from the vertex part used as a starting point to two sides until the lowest end of a discharge port, a continuously descending inclined plane is arranged on the trap body. Besides, the drain trap can alsobe provided with an anti-foam pipe of which a guidance part is provided with a through hole or a slot. Even when the drain trap is in a drainage environment that a washing machine or a bath and the like comprise a large quantity of foams, the drain trap not only ensures that the foams cannot flow backward towards one side of a machine, but also ensures that the drainage is performed smoothly and the drainage flow is promoted; besides, a broken seal phenomenon appearing in the drain trap can be prevented.

Description

【Technical field】 [0001] The invention relates to a drainage trap for preventing foul odor from sewers and harmful insects from flowing backward to the indoor side. 【Background technique】 [0002] Regarding our common drainage traps, there are generally as many as Figure 12 shown in . Compare the bottom side Figure 12 The picture shown, while explaining the common drainage trap. Figure 12 The prior art drain trap shown is mounted on a waterproof base for a washing machine as described below. The upper part of the waterproof base for the washing machine is just the washing machine body, and the bottom surface of the waterproof base has an opening. The drainage trap is composed of the trap body, flange plate, water sealing bowl, water sealing cylinder, anti-foam pipe, joints, and sieve plate components described below. The body of the water trap is in the shape of a container, including: a discharge port for the upper part of the water to flow into, and a discharge port f...

AI Technical Summary

Problems solved by technology

[0007] The existing drainage trap generally has the following problems: if it is a common washing machine drainage trap, an anti-foam pipe is provided to prevent the foam from flowing backward to the indoor side during the drainage, but the anti-foam pipe The opening area of ​​the outlet of the bubble tube is relatively narrow, although it can effectively suppress the foam in the drainage, but because of the narrow opening area of ​​the outlet, it also leads to a very unsatisfactory result of the drainage flow

In addition, in the case of a normal bath drain trap, when the amount of water flowing into the trap body is large, etc., the drainage in the trap body may flow to the drain side of the trap body due to insufficient flow. Reverse flow, or reverse flow of drainage to the base of the wash station

In addition, in addition to backflow to the base side of the washing field, sometimes it will flow back to the opening of the elbow joint part through the branch pipe of the trap body. Backflow from the opening to the base of the bath, or backflow of drainage to the upper part of the bath

Especially when there is a phenomenon of backflow of drainage on the base of the washing place and in the bathtub, since this phenomenon is intuitive and visible to the user, it feels extremely unhygienic on the senses

Since the base of the bath is usually imperviously connected with backing plates and other objects, it is impossible to visually confirm from the side of the base of the washing field to the base of the bath. Sweeping and cleaning, due to the obstruction of the backing plate, it is often difficult to clean, and in the worst case, it will cause problems such as bad smell

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