The invention relates to an embedding
system for a secondary drainage floor drain of a
toilet caisson. The
system comprises a first base, a floor drain cover and an upper
sewage discharge pipe. The first base is hollow, a circle of
water storage wall is arranged in the first base, a cavity for water feeding and storage is formed between the inner wall of the first base and the outer wall of the
water storage wall, and the inner side of the
water storage wall is provided with a drainage channel. When the
water level in the cavity is higher than the height of the water storage wall, water in thecavity can be discharged via the drainage channel. The floor drain cover is embedded in the first base and provided with water inlets for
water leakage and an upper connection port, a water seal cover is arranged below the floor drain cover, and the water seal cover extends into the cavity. The upper
sewage discharge pipe comprises a main
pipe body and a drainage structure located on the main pipe body, the main pipe body penetrates through the upper connection port and is inserted in the water storage wall, and the drainage structure is used for draining water flowing down from the inner wall of the main pipe body into the cavity. According to the embedding
system, a small part of water in the
sewage discharge pipe is introduced into the floor drain, so that the liquid level of a water seal of the floor drain is sufficient, and the anti-
odor effect is achieved.