▎ 摘　　要

NOVELTY - The utility model claims a closestool cover capable of being used for sterilization and disinfection of the toilet cavity, wherein the closestool cover is provided with an ultraviolet lamp; the closestool cover is further provided with a graphene sheet; the graphene sheet and the ultraviolet lamp are respectively connected with the program control circuit through circuit; the closestool cover is further provided with a detachable annular block fixed in the concave cavity of the bottom surface closestool cover; the graphene sheet is embedded on the annular surface of the left and right sides of the annular block; the ultraviolet lamp is set on the back part of the annular block; the front part of the annular block is provided with a sensor; the sensor is connected with the program control circuit; when the sensor detects that the toilet cover is covered on the toilet opening, the program control circuit sends instruction to electrify the ultraviolet lamp and the graphene sheet; when the sensor detects that the closestool cover is separated from the opening of the toilet, the program control circuit sends instruction to make the ultraviolet lamp and the graphene sheet cut off to close. The advantages of the utility model are as follows: the ultraviolet lamp directly irradiates the excrement cavity; the graphene sheet heats the air to closestool cover and disinfect the air at the same time.