PURPOSE: To remove solid foreign matter protruded in a pipe by forming multiple ejection nozzles opened at prescribed intervals in the peripheral direction at the rear section of a nozzle main body with floating/propelling large-diameter ejection nozzles and foreign matter removing small-diameter ejection nozzles.
CONSTITUTION: The diameter of floating/propelling large-diameter ejection nozzles 6 is set to the diameter that the high-pressure water can be spouted with the water pressure and water quantity required to float a nozzle main body 1 in a pipe. The diameter of foreign matter removing small-diameter ejection nozzles 7 is set to the diameter that the high-pressure water can be quickly spouted to cut and crush solid foreign matter such as tree roots protruded in the pipe. The hose connection section 3 of the nozzle main body 1 is inserted into a sewage pipe connected to the tip of a hose, the high-pressure water is fed into the nozzle main body 1, the opening sides of the ejection nozzles 7 are pressed to the wall face of the pipe by the high-pressure water spouted from the ejection nozzles 6, the nozzle main body 1 is excited in the forward direction, and the solid foreign matter protruded on the inner face of the pipe is cut and crushed by the high-pressure water spouted from the ejection nozzles 7.
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