Portable Toilet Stall

Portable toilet stalls come in various types, structural compositions, and design features.

In terms of types:
They can be classified into single-unit and composite structures based on their structural form. Single-unit structures offer strong independence and are suitable for scenarios with limited space or dispersed layouts. Composite structures are composed of multiple functional modules and can meet larger-scale usage requirements. Based on mobility, they can be divided into hoisting and handling types and powered towing types. The former rely on external equipment (such as cranes) for position adjustment and are suitable for periodic movement in fixed locations. The latter are equipped with power systems or towing devices and can achieve long-distance transfer autonomously or through vehicle traction, offering higher flexibility. Based on sewage treatment methods, they can be categorized into water-flush and non-water-flush suction types, circulating water-flush types, and dry-packing types. Water-flush types complete flushing through water tank supply and require regular cleaning of the sewage tank. Non-water-flush suction types use negative pressure to suction feces, reducing water consumption. Circulating water-flush types achieve water resource reuse through filtration systems, highlighting environmental protection. Dry-packing types use biodegradable film bags to collect feces without water flushing, suitable for areas with water shortages or strict environmental requirements.

In terms of structural composition:
Core components include fecal sewage storage tanks (or disposal devices), floor slabs, sanitary fixtures (such as squat toilets or sit toilets), walls, washing equipment (sinks), water tanks, roofs, and mobility devices. For example, an independent single-stall mobile toilet with six squatting positions adopts a sloped roof design, incorporating six independent stalls and an external washing area, balancing privacy and usage efficiency. Customized single-stall mobile toilets use thickened galvanized square steel welded frames paired with metal carved panel exterior walls to achieve a balance between structural stability and thermal insulation, corrosion resistance.

In terms of design principles:
Emphasis is placed on mobility convenience and economic durability. Lightweight and high-strength materials (such as aluminum alloys and composite panels) are preferred to reduce self-weight while controlling height and width to meet transportation standards. Environmental protection is reflected in the choice of sewage treatment methods, such as circulating water-flush types reducing water consumption and dry-packing types preventing sewage leakage. Additionally, design should consider both usage efficiency and humanistic care, such as setting up third toilets to meet the needs of special groups or improving space utilization through modular layouts.