Small Portable Mobile Toilet Design

The design of small portable mobile toilets needs to integrate functional requirements, material characteristics, and mobile scenarios, achieving convenience and practicality through modular structures and lightweight materials.

I. Key Points of Structural Design

1. Basic Framework:

   • Use lightweight metals (such as aluminum alloy) or high-strength plastics to construct the skeleton, ensuring structural stability and ease of handling. For example, in home DIY cases, wooden strips are used to increase height, but professional designs require replacement with waterproof and anti-corrosive materials.
   • Install universal wheels or towing devices at the bottom to support manual pushing or vehicle towing, adapting to different terrains.

2. Integration of Functional Modules:

   • Excretion Treatment System: Choose from water-flush, dry-packing, or circulating water-flush types based on the scenario. For example, construction sites without water sources can use dry-packing types, collecting feces in biodegradable bags; tourist attractions can be equipped with circulating water-flush systems to reduce water consumption.
   • Sanitary Fixtures: Select small toilets or squat pans, paired with foldable sinks and foot-operated faucets, saving space and reducing the risk of cross-infection.
   • Water Storage and Drainage: Incorporate built-in water tanks and drainage pipes. In home cases, a three-way connection can be used to share water sources between showers and sinks; professional designs can add sewage holding tanks for periodic pumping and treatment.

II. Principles of Material Selection

1. Lightweight and Durability:

   • Prioritize fiberglass or polyethylene panels for walls and roofs, as these materials are lightweight, corrosion-resistant, and have smooth surfaces that are easy to clean, reducing odor retention.
   • Use non-slip floor paint or one-piece plastic flooring for the ground to prevent water accumulation and enhance safety.

2. Environmental Protection and Sealing:

   • Use rubber sealing rings at joints to prevent sewage leakage; feces storage tanks must be fully enclosed and equipped with exhaust valves to reduce odor diffusion.
   • In home cases, pay attention to waterproofing after modifying water storage tanks, recommending the use of waterproof glue or plastic film for reinforcement.

III. Scenario Adaptation and Optimization

1. Temporary Venues (such as construction sites, exhibitions):

   • Adopt a single-unit structure with individual room sizes controlled within 1.2m×1.2m for easy and rapid deployment and disassembly.
   • Equip with solar lighting and ventilation fans to reduce energy consumption and improve the internal environment.

2. Populous Areas (such as stations, scenic spots):

   • Design composite mobile toilets, expanding the number of toilet stalls through modular assembly, such as the connected mobile public toilets used on the Lanzhou Yellow River Scenic Line.
   • Add barrier-free facilities (such as handrails, ramps) to meet the needs of special populations.

IV. Precautions

• Transportation Restrictions: Height should not exceed 2.5m, and width should not exceed 2m to comply with road transportation standards.
• Maintenance Convenience: Design removable panels for easy regular cleaning of feces tanks and replacement of consumables.
• Cost Control: Home DIY costs approximately 500-1000 yuan, while professional designs need to balance materials and functions, with the cost per unit typically ranging from 3000-8000 yuan.