| 摘要 |
PURPOSE: A pressure-type unclogging device for a drain pipe is provided to semi-permanently use a device and to remove maintenance costs because an air supply unit continuously supplies compressive air to unclog a clogged drain pipe. CONSTITUTION: A pressure-type unclogging device for a drain pipe comprises an air supply unit(10) and a nozzle(20). The air supply unit comprises a bellows pipe(11) and a pressurizing unit(12). A corrugated pipe sprays intake air to compressive air. The pressurizing unit is composed of upper and lower pressurizing members(120,130). The upper pressurizing member has a check valve(121), an lower side closing flat plate(122), and an air injection hole(124). The check valve contracts and expands the corrugated pipe by repeated pressurization. Upper joining holes(123) are formed in the edge of the lower side closing flat plate and are joined with upper fixing protrusions(111) of the corrugated pipe. The air injection hole injects the intake air through the check valve to the corrugated pipe. The lower pressurizing member has a connecting pipe(131) and an upside closing flat plate(132). The connecting pipe is connected with an air outlet(113) of the corrugated pipe. Lower joining holes(133) are formed in the edge of the upside closing flat plate and are joined with lower fixing protrusions(112). The nozzle sprays the compressive air generated by the air supply unit to foreign materials clogged in the drain pipe to unclog the drain pipe. |
