Small Outdoor Portable Toilet

A small outdoor portable toilet is a portable sanitation facility suitable for scenarios such as stations, docks, tourist attractions, and densely populated public places. The following is an introduction from three aspects: composition, classification, and examples.

I. Basic Composition
A small outdoor portable toilet typically consists of core components such as a fecal sewage storage tank (or disposal device), floor slab, sanitary ware, walls, washing equipment, water tank, roof, and a mobile device. Among them, the fecal sewage storage tank is used to collect excreta, and some models are equipped with waterless flushing suction or circulating water flushing systems to reduce water consumption; the walls are mostly made of materials such as metal carved panels and galvanized steel frames, taking into account both thermal insulation and structural strength; the mobile device is configured with lifting hooks, powered towing systems, or handling wheels according to design requirements to ensure flexible deployment.

II. Classification Methods

1. By structural form: Divided into single-unit structures and composite structures. A single-unit structure is an independent unit suitable for space-constrained scenarios; a composite structure is composed of multiple modules, which can expand the number of squatting positions or add management rooms.
2. By mobility method: Includes lifting and handling types and powered towing types. The former relies on lifting equipment for transfer, while the latter achieves long-distance movement through vehicle traction, suitable for temporary events or emergency scenarios.
3. By sewage treatment method: Covers water flushing and waterless flushing suction types, circulating water flushing types, and dry packing types. Water flushing types rely on water tank water supply and require regular cleaning of the sewage tank; waterless flushing suction types use vacuum pumps to suction excreta, with strong water-saving capabilities; circulating water flushing types utilize biodegradation or membrane filtration technology to achieve sewage purification and reuse; dry packing types use biodegradable plastic bags to encapsulate excreta, requiring no water source and being suitable for water-scarce areas.

III. Typical Examples
The four-squatting-position portable toilet produced by Dezhou Hongtu Metal Products Co., Ltd. has dimensions of 4 meters in length and 2.3 meters in width. It features a pointed roof design and an exterior wall made of thermal-insulating metal carved panels. Inside, it is equipped with 2 squatting positions, a urinal, and a pedestal sink in the men's toilet, with a cost of less than 20,000 yuan, combining economy and practicality. There is also a specially shaped portable toilet with a galvanized steel frame structure, whose exterior wall is made of orange brick-patterned decorative panels, with a structural lifespan of over 15 years, suitable for high-intensity use scenarios. Such products balance functional requirements and cost control through modular design and material optimization.