Double-Wing Prefabricated House Design Drawing

There are currently no publicly available standard design drawings for “double-wing prefabricated houses,” but the design framework can be deduced from their core design features and functional logic. This type of house centers on a bilateral expansion structure, combined with a factory pre-assembly model for rapid deployment. Its design logic can be broken down into the following key modules:

1. Structural Expansion System: The Core of Spatial Efficiency

The folding and unfolding mechanism of double-wing prefabricated houses is their core design. In the folded state, the main body of the house maintains standard container dimensions (typically 6 meters × 2.4 meters × 2.6 meters), facilitating transportation and stacking. When unfolded, hydraulic or mechanical structures drive the bilateral wing panels to extend outward, creating symmetrical expanded spaces. The usable area after unfolding can reach 2-3 times that of the folded state. For example, a standard 20-foot container can be expanded to approximately 36-54 square meters, meeting the needs of temporary office, residential, or commercial scenarios.
Design must focus on structural stability: The wing panels and main frame must be connected via high-strength hinges or sliding rails to ensure even load-bearing after unfolding. The hydraulic system must be equipped with pressure sensors and synchronous control modules to prevent structural deformation caused by asynchronous bilateral unfolding. The base must be designed with adjustable legs to adapt to uneven ground and ensure overall levelness.

2. Factory Pre-assembly System: Integration and Standardization

Double-wing prefabricated houses adopt a whole-house integrated pre-assembly model, where structures, insulation layers, doors and windows, water and electricity pipelines, ceilings, floors, and sanitary facilities are all assembled and debugged in the factory. The insulation layer typically uses polyurethane foam or rock wool boards, with thickness adjusted according to climate zones (e.g., up to 100 millimeters in cold regions) to ensure thermal performance. Doors and windows are made of thermal-break aluminum alloy or PVC materials, paired with double-glazed units for both lighting and heat insulation. Water and electricity pipelines are pre-buried in the wall and floor cavities, with standardized interfaces, requiring only connection to external water and power sources on-site for use.
The core advantage of the pre-assembly model lies in reducing on-site construction time and errors. For example, sanitary facilities (such as toilets and sinks) are fixed and sealed-tested in the factory, avoiding leakage issues caused by on-site installation. The electrical system adopts a modular design, supporting rapid maintenance and functional expansion (such as adding sockets or lighting points).

3. Operation and Safety System: Convenience and Reliability

The opening and closing process of double-wing prefabricated houses supports one-touch operation via an integrated control panel or remote app. The hydraulic system must be equipped with an emergency manual pump to prevent failure to unfold during power outages. Multiple safety protections must be set up during the unfolding process, such as infrared sensors to detect obstacles and pressure sensors to monitor hydraulic cylinder loads, avoiding accidental pinching or structural overloading.
In addition, the house must be designed with wind-anchor devices, such as extendable ground stakes or weight blocks at the base after unfolding, to ensure stability in strong winds (e.g., wind speeds ≥ Force 10). Fire protection design must meet B1-level standards, with wall and floor materials passing flame-retardant tests and the electrical system equipped with leakage protection devices.

4. Adaptability to Application Scenarios

The design of double-wing prefabricated houses must balance generality and scenario-specific customization. For example, medical emergency scenarios require the addition of negative-pressure ventilation systems and disinfection modules; office scenarios require optimized sound insulation performance (such as adding sound-absorbing cotton to walls) and reserved network cabling slots; residential scenarios require the design of removable partitions to support flexible space division.
Their core value lies in rapid response and low-cost deployment, suitable for scenarios such as post-disaster reconstruction, temporary construction site dormitories, and wilderness research stations. Through modular design, they achieve efficient full-lifecycle management of “transportation-unfolding-use-recovery.”