Pipe cleaning apparatus

A pipe cleaning apparatus comprising:

• a cleaning module;
• a driving module;
• and
• a joint module connecting the cleaning module and the driving module,
• wherein the cleaning module comprises:
• a rotator;
• a front brush on a side surface of the rotator;
• a camera on a front surface of the rotator;
• a rear brush spaced apart from the front brush in a horizontal direction;
• and
• a suction part between the front brush and the rear brush,
• wherein the joint module comprises a first universal joint,
• wherein the driving module comprises:
• a hollow frame extending in the horizontal direction;
• a pneumatic cylinder that is hollow and connected to a first end of the hollow frame;
• a first slider on the hollow frame;
• a second slider on the hollow frame and spaced apart from the first slider, wherein the second slider is connected to the pneumatic cylinder;
• a plurality of front wheel assemblies on the hollow frame, wherein each of the plurality of front wheel assemblies comprises a first connection structure and a second connection structure that is longer than the first connection structure;
• and
• a plurality of rear wheel assemblies on the hollow frame, wherein each of the plurality of rear wheel assemblies comprises a third connection structure and a fourth connection structure,
• wherein, in a cross-sectional view of the hollow frame, the plurality of rear wheel assemblies and the plurality of front wheel assemblies are arranged alternately with each other in a circumferential direction,
• wherein the first connection structure is connected to a second end of the hollow frame, and the second connection structure is connected to the first slider, and
• wherein the third connection structure is connected to the second slider, and the fourth connection structure is connected to the first slider.

A pipe cleaning apparatus comprising:

• a cleaning module;
• a driving module;
• and
• a joint module connecting the cleaning module and the driving module,
• wherein the cleaning module comprises:
• a rotator;
• a front brush on a side surface of the rotator;
• a rear brush horizontally spaced from the front brush;
• a suction part between the front brush and the rear brush;
• a camera on a protrusion horizontally spaced from the rotator;
• and
• a front caster on a side surface of the protrusion,
• wherein the joint module comprises:
• a first universal joint connected to the driving module;
• a second universal joint connected to the cleaning module;
• and
• a third universal joint connecting the first universal joint and the second universal joint,
• wherein the driving module comprises:
• a hollow frame extending in a horizontal direction;
• a pneumatic cylinder that is hollow and on a first end of the hollow frame;
• a first slider on the hollow frame;
• a second slider on the hollow frame and spaced apart from the first slider, wherein the second slider is connected to the pneumatic cylinder;
• a plurality of front wheel assemblies on the hollow frame, wherein each of the plurality of front wheel assemblies comprises a first connection structure and a second connection structure;
• a plurality of rear wheel assemblies on the hollow frame, wherein each of the plurality of rear wheel assemblies comprises a third connection structure and a fourth connection structure, wherein, in a cross-sectional view of the hollow frame, the plurality of rear wheel assemblies and the plurality of front wheel assemblies are arranged alternately with each other in a circumferential direction;
• and
• a first caster on each of the second connection structure and the fourth connection structure,
• wherein the first connection structure is connected to a second end of the hollow frame, and the second connection structure is connected to the first slider, and
• wherein the third connection structure is connected to the second slider, and the fourth connection structure is connected to the first slider.