| 主权项 |
1. A municipal sewer cleaning system (100) for efficiently cleaning a below grade municipal sewer line, wherein the system (100) comprises:
(a) a vacuum service truck (110), wherein the vacuum service truck (110) comprises:
(i) a vacuum source (120) fluidly connected to a flexible vacuum hose (122), wherein the vacuum hose (122) comprises a vacuum hose diameter (124),(ii) a compressed air source (130) fluidly connected to a flexible air hose (132), and(iii) a pressurized water source (140) fluidly connected to a flexible water hose (142),wherein the vacuum hose (122), the air hose (132), and the water hose (142) are collectively joined into a hose assembly (150) designed to extend into a below grade sewer line (104) from the vacuum service truck (110);
(b) a collar assembly (160) having a collar first end (162), a collar second end (164), a rigid inner collar (170), and an inflatable outer collar (180), wherein the inner collar (170) comprises an inner collar diameter (172), wherein the inflatable outer collar (100) comprises a quick connect fitting (182) fluidly disposed thereon, wherein the quick connect fitting (182) is fluidly connected to the air hose (132); (c) a tapering semi-cylindrical skirt (190) having a skirt first end (192) and a skirt second end (194), wherein the skirt first end (192) is disposed on the collar second end (164), wherein the skirt second end (194) extends out and away from the collar assembly (160), wherein the skirt (190) tapers from the semi-cylindrical skirt first end (192) to the terminating skirt second end (194); and (d) a rigid ninety-degree reducing elbow (200) having an elbow first end (202) and an elbow second end (204), wherein the elbow first end (202) comprises a first elbow diameter (206) equal to the vacuum hose diameter (124), wherein the elbow first end (202) is fluidly connected to the vacuum hose (122), wherein the elbow second end (204) comprises a second elbow diameter (208) equal to the inner collar diameter (172), wherein the elbow second end (204) is fluidly connected to the collar first end (162), wherein the reducing elbow (200) tapers from the elbow second end (204) to the elbow first end (202),wherein the reducing elbow (200) comprises a trough (212) disposed on an elbow outside wall (210), wherein the trough (212) comprises a plurality of roller units (214) disposed therein, wherein the roller unit (214) comprises a plurality of radially disposed rollers (216) surrounding a centrally disposed aperture (218), wherein each roller (216) comprises a concavely arcuate surface disposed thereon, wherein the water hose (142) is disposed in the trough (212) through the plurality of roller units (214) where the plurality of rollers (216) in each roller unit (214) interfaces with the water hose (142) for easy back and forth movement of the water hose (142) through the trough (212);wherein for operation, the hose assembly (150), the collar assembly (160) with the skirt (190) disposed thereon, and the reducing elbow (200) are inserted into a manhole (102) for evacuating silt and debris from the sewer line (104), wherein the outer collar (180) is inflated via the air hose (132) and the compressed air source (130) for sealing the collar assembly (160) against an inner wall of the sewer line (104), wherein silt and debris is mixed into a form of a slurry via the water hose (142) and pressurized water source (140), wherein the water hose (142) is moved in a back and forth motion inside the sewer line (104) via the roller units (214), wherein the slurry is vacuumed into the vacuum service truck (110) via the vacuum hose (122) and the vacuum source (120). |
