Mobile Toilet Aluminum Alloy Frame

The specification selection of aluminum alloy frames for mobile toilets requires comprehensive consideration of factors such as stress, usage environment, door type, and frame design. Here is a detailed analysis:

1. Wall thickness selection should match the usage scenario
The wall thickness of the aluminum alloy frame at stress-bearing parts directly affects structural stability. In conventional environments, a wall thickness of at least 2 millimeters is required to meet basic load-bearing needs. However, in humid environments such as restrooms, metal materials are prone to strength degradation due to moisture erosion. Therefore, it is recommended to select frames with a wall thickness of over 1.4 millimeters as a safety margin. If the mobile toilet is used frequently or needs to bear significant loads (e.g., multiple people using it simultaneously), the wall thickness can be further increased to over 2.5 millimeters to enhance resistance to deformation.

2. Swing door series should be selected based on door characteristics
Swing doors commonly come in three series: 50, 55, and 70, with the numbers representing the cross-sectional width of the main frame profile in millimeters. The 50 series is suitable for ordinary households or small mobile toilets, with profile strength sufficient to meet the load-bearing needs of conventional door panels (e.g., single panel area ≤ 1.5㎡, glass thickness ≤ 8mm). The 70 series, with wider profiles and thicker walls, is suitable for oversized glass doors (single panel area > 2㎡) or heavily humid areas (e.g., coastal regions, high-humidity industrial environments), offering significantly better wind pressure and deformation resistance compared to the 50 series. The 55 series falls in between and can serve as a transitional option.

3. Narrow frame design should avoid deformation risks
Narrow frames enhance visual transparency, but it is important to note that the frame width should not be less than 7 millimeters. If the frame is too narrow, the section modulus of the profile will be insufficient, leading to bending deformation under the self-weight of the door panel or external forces, affecting sealing and service life. It is recommended to prioritize narrow frames with a width of 8-12 millimeters, which can maintain a minimalist style while ensuring structural strength.

4. Frame covering design affects cleaning efficiency
Frame covering refers to the decorative structure at the connection between the frame and the wall, divided into single and double coverings. The single covering design only wraps a decorative layer on the outer side of the frame, with the inner side directly adhering to the wall, reducing sanitary dead zones and making it more suitable for mobile toilets that require frequent cleaning. Although the double covering can completely wrap the frame, the inner side is prone to dust accumulation and is difficult to clean, potentially fostering bacteria over long-term use. Therefore, it is not recommended as a priority choice.