Floor drain

Abstract

The invention belongs to a floor drain for indoor floor drainage. The center of a water storage trough 4 is provided with a water outlet 1, a water return bowl 3 has a dwarf box shape and is made of silica gel, the bottom end of a skirt part of the water return bowl 3 makes direct contact with the bottom plane of the water storage trough 4 to form a closing surface, the top plane of the water return bowl 3 can be attached to a grate 5, the skirt part of the water return bowl 3 is of a sheet structure which can be folded and bent inwards under drainage pressure, and drainage holes 9 of the grate 5 are formed in the edge of the water storage trough 4. The interior of the water storage trough 4 is provided with supporting columns 10 for supporting the grate 5. The top surface of the flat-topwater return bowl 3 is provided with a gas buffer device. According to the water-sealed floor drain of the structure, the water return bowl does not block drainage and can achieve closing for sealing,stored water is not liable to be lost, and closing does not fail without water.

Description

technical field [0001] The invention belongs to a floor drain used for indoor ground drainage. Background technique [0002] The water-sealed floor drain is to seal the channel with the structure of the storage tank and the bell jar (top round solitary) type return water bowl to cut off the channel; use the up and down return journey of 180 degrees to cross the return water bowl obstacle to drain water. The disadvantage of this structure is: the volume must be high and large to ensure the width of the drainage channel and the water storage capacity of the national standard of 50 mm. Modern home decoration has limited ground height and space, so it is impossible to install such a high floor drain; the bell-type return water bowl, the drainage is from the center hole of the grate, and then the water is drained from the top surface of the bell-type return water bowl and then returned to its inner surface, resulting in The drainage resistance is high, the self-cleaning ability ...

AI Technical Summary

Problems solved by technology

The disadvantage of this structure is that the volume must be tall and large to ensure the width of the drainage channel and the water storage capacity of the national standard of 50 mm.

Modern home decoration has limited ground height and space, so it is impossible to install such a high floor drain; the bell-type return water bowl, the water is drained from the center hole of the grate, and then drained from the top surface of the bell-type return water bowl and then returned to its inner surface, resulting in The drainage resistance is high, the self-cleaning ability is poor, and it is easy to block; the water in the storage tank is easily sucked away by the negative pressure generated by the sewer, resulting in water sealing failure; the floor drain cover is easily broken by the positive pressure generated by the sewer, causing the return water bowl to fail to seal; The water stored in the storage tank is directly in contact with the indoor air and is easy to dry up, which makes the original advantage of water tight sealing become a fatal disadvantage

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