Mobile Toilet Frame Standard

The mobile toilet frame standard primarily covers material selection, dimensions, craftsmanship, and requirements for adapting to special scenarios, as detailed below:

I. Material Selection Standards

The frame material must balance strength, corrosion resistance, and lightweight requirements. High-strength steel (such as hot-dip galvanized square steel tubes or channel steel) is the mainstream choice, offering strong load-bearing capacity suitable for complex outdoor environments. The hot-dip galvanizing process significantly enhances rust resistance and extends service life. Aluminum alloy material is more suitable for weight-sensitive scenarios (such as frequent relocation or high-rise hoisting), offering low density and good rust resistance, albeit at a relatively higher cost. Material selection should be comprehensively evaluated based on usage scenarios, budget, and transportation needs.

II. Dimension Standards and Structural Requirements

Frame dimensions should be flexibly designed according to the number of toilet compartments, functional configurations, and transportation methods. Common steel structural component specifications are as follows:

• Bottom Structure: The main frame uses 80mm×80mm×3.2mm hot-dip galvanized square steel tubes, with full-weld technology and secondary anti-corrosion treatment. The auxiliary frame is made of 80mm×40mm×2.5mm square steel, welded to the main frame to enhance load-bearing capacity. The main base should use ≥16# channel steel or I-beams to ensure it can withstand the overall weight and hoisting stress.
• Columns and Walls: The surrounding columns should preferably use 80mm×80mm×3.2mm or 100mm×50mm national standard square steel, with full welds and no cold welds. The intermediate walls use 50mm×50mm×2.5mm galvanized square steel or angle iron, spaced at 400mm×400mm, balancing stability and ventilation needs.
• Roof Frame: The main frame is made of 40mm×60mm×1.8mm square steel, and the auxiliary frame uses 40mm×40mm×1.8mm square steel, forming a lightweight support structure.

III. Craftsmanship and Safety Standards

• Welding Craftsmanship: All joints should use full-weld technology to ensure no burrs, cracks, or cold welds. Welding points should undergo secondary anti-corrosion treatment (such as painting with anti-rust paint or hot-dip galvanizing) to cope with the corrosion risk of long-term outdoor exposure.
• Wind and Earthquake Resistance: The frame should achieve a wind resistance rating of Level 12 and an earthquake resistance rating of Level 7, enhancing overall stability through structural optimization (such as adding diagonal braces and reinforcing joints).
• Load-Bearing Capacity: Standard mobile toilets should meet the weight requirement of ≥5 people using it simultaneously. Static load parameters should refer to the product manual to ensure no deformation occurs during crowd gatherings or equipment installation.

IV. Requirements for Adapting to Special Scenarios

• Cold Regions: The frame should be designed in conjunction with thermal insulation and moisture-proofing. For every 10mm increase in the thickness of the exterior wall insulation layer, the winter indoor-outdoor temperature difference can be reduced by 3-5℃, lowering the risk of freeze cracking.
• Frequent Relocation Scenarios: Square steel welded frames should be prioritized, as their joint strength is on average 18% higher than that of angle steel frames, making them more suitable for hoisting and transportation and reducing structural damage during transit.

By comprehensively optimizing material performance, craftsmanship level, and structural safety, these standards ensure the stability and durability of mobile toilets in various environments.