APPARATUS FOR PREVENTING COUNTERFLOW USING MAGNETS

摘要

Disclosed is a counterflow preventing device using magnets. The present invention comprises: a circular body with a penetrated internal space; a preventer which is installed to prevent counterflow introduced into the body, and which has a funnel-shaped head in the opposite side of the counterflow and a shaft in a direction where the counterflow is generated; and a connector hinge-coupled to the body, and firmly inserted inside a pipe while gripping the preventer not to be separated. The permanent magnets are inserted in the funnel-shaped body of the preventer and the circular body, respectively, and the preventer is firmly in contact with the inner surface of the connector by the repulsive power of the permanent magnets. Accordingly, the present invention can be permanently used with the repulsive power of the permanent magnets, and can accurately measure the used amount by reliably preventing the counterflow because the device is free from interference caused by foreign materials.