Barrier-Free Mobile Single Toilet

The barrier-free mobile single toilet is a public facility specifically designed for people with special needs, including the disabled, the elderly, women, and children. Its core objective is to provide a safe and convenient usage environment, and its design must strictly adhere to standards such as the 'General Code for Accessibility in Building and Municipal Engineering' (GB 55019-2021).

I. Basic Design Specifications

1. Space and Accessibility

   • Wheelchair Turning Requirements: The interior of the toilet must accommodate a wheelchair turning space with a diameter of no less than 1.5 meters and a standard area of no less than 4 square meters, ensuring users can rotate and exit freely.
   • Door Design: The clear opening width of the door should be ≥800mm. Outward-opening or electric sliding doors (with anti-pinch functionality) are preferred. If an inward-opening door is used, an emergency opening device must be provided to prevent wheelchair entrapment.

2. Sanitary Fixtures and Safety Facilities

   • Toilet Seat: Install an L-shaped combination safety grab bar with a horizontal length of ≥700mm and a vertical height of 1.4-1.6m to assist users in standing up or maintaining balance. Reserve a 650mm knee clearance space at the bottom for easy wheelchair access.
   • Sink: Adopt a low-position design with an open bottom to avoid wheelchair collisions. Faucets should preferably be sensor-activated or lever-type for easy one-handed operation.
   • Urinal: Equip with vertical grab bars and horizontal auxiliary bars at a height of ≤400mm to accommodate different height requirements.

II. Intelligent Function Upgrades

Some barrier-free mobile toilets enhance convenience through intelligent technologies:

• Automatic Sensor Doors: Eliminate the need for manual pushing or pulling, reducing contact and lowering usage difficulty.
• Sensor-Activated Water Outlet and Flushing: Triggered by infrared or capacitive sensors to avoid the inconvenience of traditional button operations.
• Emergency Call System: Installed at a height of 0.4-0.5m from the ground for easy user access, ensuring timely assistance in emergencies.

III. Applicable Populations and Scenarios

Barrier-free mobile toilets serve not only the disabled but also the elderly, pregnant women, children, and other mobility-impaired groups. Their flexible deployment characteristics (such as mobility and modular design) make them suitable for public places (e.g., parks, shopping malls, transportation hubs), temporary events (e.g., exhibitions, sports events), and emergency scenarios (e.g., disaster relief), effectively弥补ing the coverage gaps of fixed barrier-free facilities.

IV. Regulatory Basis and Significance

Design must strictly comply with national standards, such as:

• Space Dimensions: Ensure unobstructed wheelchair turning and passage;
• Safety Grab Bars: Provide stable support to prevent falls;
• Emergency Devices: Guarantee usage safety and reflect humanistic care.
  These specifications not only enhance the practicality of the facilities but also promote the overall progress of a barrier-free social environment.