Invention of Mobile Toilets

The invention of mobile toilets involves a variety of innovative designs, covering portable products, homemade devices, and emergency solutions from car manufacturers. Here are specific invention cases and technical features in different scenarios:

Portable Toilets: Combination of Eco-Friendly Materials and Super Absorbent Technology

German designer Eva Tint introduced the leaf-shaped portable toilet in 2008. Made from biodegradable eco-friendly materials, it folds to a size of just 12×28 centimeters and can easily fit into a woman's handbag. Its core innovation lies in the internal filling of super absorbent agents, which rapidly convert liquids into gel and lock in odors, preventing leakage. The bottom features illustrated usage instructions, and it comes with cleaning wipes. After disposal, it can be treated as ordinary garbage. Initially targeting female users to address long queues for public restrooms, it later expanded to scenarios such as car travel and outdoor gatherings. In 2009, it was mass-produced by a German company and sold in sets of three for 4.5 euros in the European market, gradually gaining acceptance among male users.

Homemade: Multi-Functional Mobile Restroom Transformed from a Water Storage Tank

A young man transformed a water storage tank into a mobile restroom to meet his family's toilet needs. The specific steps include:

1. Structural Modification: Use an angle grinder to split the water storage tank in half and install universal wheels at the four corners of a wooden board for mobility;
2. Functional Expansion: Increase the height by fixing wooden strips, install a sponge door frame on the side opening, embed plastic soft panels to form walls, and cover the top with the upper half of the tank as a roof;
3. Sanitation System: Drill a hole at the bottom to install a drain pipe as a floor drain, connect a plastic bucket on the side as a water storage device, and extend a water pipe to the door as a handwashing basin;
4. Detail Optimization: Apply waterproof paint to enhance aesthetics, use foam strips to拼接 (assemble) discarded wooden boards to make a simple door, install a toilet, water tank, and fix them with glass glue, and connect the drain pipe to a sewage bucket. Although this design is a personal creation, it integrates mobility, water storage, sewage disposal, and simple bathing functions, demonstrating the practicality of resource reuse.

Car Manufacturer Innovations: Seat-Hidden and Armrest Box Transformation Solutions

Car manufacturers have introduced two types of mobile toilet inventions for long-distance travel scenarios:

• Seres has been granted a patent for a sliding-rail toilet, which is normally hidden under the seat and can be pulled out for emergency use, addressing the need for toilet breaks during highway traffic jams or in remote areas;
• My Stone Auto has transformed the central armrest box of its seven-seater model into an emergency toilet, equipped with a foldable toilet seat, disposable plastic bags, and deodorizing gel, balancing hygiene and convenience, especially suitable for families with children and long-distance self-driving enthusiasts. Both designs seamlessly integrate toilet needs into the vehicle environment through space optimization and modular functional integration, reflecting the in-depth attention of technology to user experience.