Maintenance Station Isolation Cavity Design to Reduce Foul Odor Escape

The maintenance station is divided into multiple isolated cavities: a first cavity for receiving wastewater from the cleaning device, a second cavity for storing wastewater, and a third cavity for discharging wastewater. The isolation valve system segments the flow path, allowing wastewater to be transferred from the first cavity to the second cavity for storage, and then discharged to the third cavity when needed. This segmentation prevents foul odors from spreading while enabling long-term storage.

The isolation valves act as intermediaries between different cavities. The first isolation valve controls the transfer from the first cavity to the second cavity, and the second isolation valve controls the discharge from the second cavity to the third cavity. These intermediary valves allow controlled movement of wastewater while preventing uncontrolled odor spread, enabling both long-term storage and odor management.

Instead of using a single large wastewater tank, the system segments the storage capacity across multiple cavities (first, second, and third cavities). The second cavity serves as the main storage region, while the first and third cavities handle receiving and discharging functions. This segmentation achieves the required storage capacity while maintaining manageable structural complexity through functional division.

The system uses controllable isolation valves to dynamically manage the wastewater flow between cavities. The valves can be opened or closed based on operational needs, allowing the system to adapt its configuration. This dynamic control enables the maintenance station to handle varying wastewater volumes and discharge requirements without requiring a permanently complex fixed structure.

The maintenance station enables self-service wastewater management through its automated cavity and valve system. Wastewater is automatically transferred from the first cavity to the second cavity for storage, and can be discharged to the third cavity through the second isolation valve when the second cavity is full or when discharge is needed. This self-service mechanism eliminates the need for frequent manual cleaning interventions, maintaining foul odor control while preserving cleaning device productivity.

The system performs preliminary wastewater transfer from the first cavity to the second cavity before the first cavity becomes full. This preliminary action prevents overflow and foul odor generation in the first cavity, while allowing the cleaning device to continue operating without interruption. The automated transfer mechanism ensures foul odor prevention occurs proactively rather than requiring reactive manual cleaning.