Title:
DRAIN PIPE CLEANING METHOD
Document Type and Number:
Japanese Patent JP2022166707
Kind Code:
A
Abstract:
To provide a drain pipe cleaning method capable of reliably preventing backflow of muddy water due to cleaning of a drain pipe particularly for an individual house on a lower floor.SOLUTION: A drain pipe cleaning method comprises: a first step of inserting a vertical pipe cleaning nozzle 5 attached to a water hose 6 from the top of a vertical pipe 2 into the lower bottom of the vertical pipe without jetting high-pressure water, a second step in which, simultaneously with or before or after the execution of the first step, a horizontal pipe cleaning nozzle 7 attached to a water hose 8 from the downstream side of a horizontal pipe 3 is advanced toward the lower bottom of the vertical pipe while jetting high-pressure water, a third step of cleaning the inside of the vertical pipe by pulling up the vertical pipe cleaning nozzle 5 located at the lower bottom of the vertical pipe while jetting high-pressure water inside the vertical pipe, and a fourth step of moving the horizontal pipe cleaning nozzle 7, during the execution of the third step, from the lower bottom of the vertical pipe toward the downstream side of the horizontal pipe while jetting high-pressure water from the horizontal pipe cleaning nozzle 7.SELECTED DRAWING: Figure 1
Inventors:
OTSU YOSHINAGA
SUZUKI JUNICHI
SAKIGUCHI KIYOTOMI
SUZUKI JUNICHI
SAKIGUCHI KIYOTOMI
Application Number:
JP2021072105A
Publication Date:
November 02, 2022
Filing Date:
April 21, 2021
Export Citation:
Assignee:
FUJIKUSU KK
International Classes:
E03C1/308; B65H75/38
Attorney, Agent or Firm:
Shigeru Kinoshita