| 摘要 |
PURPOSE: A stink interception device is provided to intercept the counterflow of bad smells and gas and to prevent insects from intrusion. CONSTITUTION: A cutoff plate installing body(10) has an inserting part(11) set in a drainpipe. A cutoff plate(13) is installed to incline to the cutoff plate installing body and united with a spring and a hinge(12) in the upper part. A covering body(20) is inserted to cover the installation of the cutoff plate and formed with an inserting part put in a drainpipe. A packing is put in the outer circumference of the cutoff plate.
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