Device for cleaning sewer pipe walls

Abstract

A device for cleaning sewer pipe walls using a cleaning fluid is disclosed. The device includes a carriage and a nozzle carrier having a main axis disposed in the carriage. The nozzle carrier includes a hose connection and a plurality of nozzles disposed in the nozzle carrier around the main axis, where a respective nozzle axis of each of the plurality of nozzles runs obliquely to the main axis. The nozzle carrier is connected to the carriage in a rotationally fixed manner.

1 .- 10 . (canceled) 
     
     
         11 . A device for cleaning sewer pipe walls using a cleaning fluid, comprising:
 a carriage; and   a nozzle carrier having a main axis, wherein the nozzle carrier is disposed in the carriage;   wherein the nozzle carrier includes a hose connection and a plurality of nozzles disposed in the nozzle carrier around the main axis, wherein a respective nozzle axis of each of the plurality of nozzles runs obliquely to the main axis, and wherein the nozzle carrier is connected to the carriage in a rotationally fixed manner.   
     
     
         12 . The device according to  claim 11 , wherein the hose connection is connected to a chamber in the nozzle carrier, wherein a plurality of boreholes emanate from the chamber to an outer surface of the nozzle carrier, wherein each of the plurality of nozzles is disposed within a respective one of the plurality of boreholes, and wherein the chamber is delimited by a deflection surface opposite from the hose connection. 
     
     
         13 . The device according to  claim 12 , wherein the nozzle carrier includes a base body and an annular nozzle head for accommodating the plurality of boreholes and the hose connection, wherein the deflection surface is configured on an end face of the base body, wherein the nozzle head is connected to the carriage in a rotationally fixed manner, and wherein the base body is detachably connected to the nozzle head and is not directly connected to the carriage. 
     
     
         14 . The device according to  claim 13 , wherein the base body is screwed to the nozzle head by a thread running coaxially to the main axis. 
     
     
         15 . The device according to  claim 13 , wherein the base body defines a longitudinal borehole leading from the end face to an exterior end face, wherein the exterior end face includes a receptacle, and wherein a plug with a plurality of nozzle boreholes is disposed within the receptacle. 
     
     
         16 . The device according to  claim 11 , wherein the plurality of nozzles are disposed on a first circle and a second circle running coaxially to the main axis. 
     
     
         17 . The device according to  claim 16 , wherein nozzles disposed on the first circle are arranged offset from nozzles disposed on the second circle. 
     
     
         18 . The device according to  claim 16 , wherein a distance between the axis of a nozzle disposed on the first circle and the main axis is smaller than a distance between the axis of a nozzle disposed on the second circle and the main axis. 
     
     
         19 . The device according to  claim 16 , wherein an angle of inclination which encloses the plurality of nozzles with the main axis is equally large for the nozzles disposed on the first circle and the nozzles disposed on the second circle. 
     
     
         20 . The device according to  claim 16 , wherein base points of a distance vector between the main axis and the axes for all nozzles disposed on the first circle or the second circle lie at a same location on the main axis.