Trailer-mounted Mobile Toilet Accessories
The key accessories for trailer-mounted mobile toilets include chassis and connectors, internal frameworks, fecal storage tanks, ventilation systems, and other functional accessories. Here are the specific evaluation points:
1. Chassis and Connectors
The chassis is the foundational structure of a trailer-mounted mobile toilet, requiring hot-dip galvanizing or high-strength steel welding with anti-rust treatment. The welding points must be smooth and firm, with no welding slag residue to prevent cracking or corrosion after long-term use. Connectors include towing hooks, support legs, and tires, which must comply with national standards: the towing hook must match the towing vehicle, the support legs must have adjustable height functions to adapt to different ground surfaces, and the tires must be wear-resistant and equipped with a spare tire. Transportation stability is a core indicator, which can be evaluated by checking for looseness or deformation in the connectors.
2. Internal Framework
The framework material is recommended to be stainless steel or galvanized steel pipes, also requiring anti-rust treatment. Key processes include pickling, phosphating, and spraying. Pickling removes the oxide layer from the metal surface, phosphating enhances coating adhesion, and spraying provides long-term anti-corrosion protection. The load-bearing capacity of the framework must meet the overall weight of the toilet, which can be assessed by observing whether the welding points are uniform and whether the pipe thickness meets the standard (usually not less than 2mm).
3. Fecal Storage Tank
The material must be corrosion-resistant and easy to clean, such as plastic (e.g., PE) or stainless steel. The capacity design should be generous, generally estimated based on the number of daily users (e.g., over 1 cubic meter for 50 people per day), and equipped with a liquid level observation port for timely cleaning. For plastic fecal storage tanks, check for uniform wall thickness (recommended ≥5mm); for stainless steel tanks, confirm that the welding points are sealed to prevent leakage.
4. Ventilation System
Dry toilets require independent exhaust ducts equipped with activated carbon filters or biological deodorization modules. The exhaust volume must be ≥80m³/h, which can be judged by feeling the internal airflow speed after startup. For flush toilets, consider the convenience of water circulation systems (e.g., water-saving float valves) or sewage discharge interfaces, with a recommended sewage pipe diameter of ≥110mm to prevent blockages.
5. Other Functional Accessories
The main control switch is usually located inside the rear inlet hole of the toilet and must have leakage protection functionality; each toilet compartment should be equipped with an upward-pushing window, with a recommended size of ≥400mm×400mm to ensure ventilation. Additionally, check for the presence of user-friendly designs such as night lights and handrails to enhance the user experience.
