Reciprocating Pump Pipe Dredging Device Sealing

The patent applies pneumatic principles by using an inflator to generate high-pressure air flow that is transmitted through a flexible pipe to the suction disc. This pneumatic system replaces manual mechanical pushing with pressurized air, which automatically generates sufficient force to propel the suction disc through deep blockages without requiring repeated manual motions, thereby solving both the insufficient pressure and excessive labor issues simultaneously

The patent replaces the manual mechanical system of repeatedly pushing flexible plates with an automated pneumatic system. The inflator generates pressurized air that flows through the flexible pipe to drive the suction disc, substituting human physical effort with a mechanical-pneumatic system that continuously generates the necessary force without user intervention, thus eliminating the laborious repeated motions while maintaining effective blockage clearing capability

The patent employs a flexible pipe made of elastic material that can dynamically adapt its shape to match the circular cross-section of the drainage pipeline. This flexible shell conformally seals the gap between the suction disc and pipe wall, preventing air leakage while allowing the inflator to generate high air pressure. The flexibility of the pipe enables it to deform and maintain intimate contact with the pipe interior surface, ensuring both high power delivery and reliable air tightness simultaneously

The patent introduces dynamic adaptability through the flexible pipe that can change its shape in response to internal air pressure and external pipe geometry. As air pressure increases, the flexible pipe expands and conforms to the circular pipe wall, dynamically sealing any gaps. This dynamic behavior allows the system to maintain both high air pressure generation capability and reliable air tightness by adapting the seal geometry to match the operating conditions