Invention of Portable Toilets
There are multiple cases of inventions of portable toilets, with different inventors designing and creating them based on various needs and scenarios.
The first case involves a young man who made a portable toilet using a water storage tank. When his wife took a long time in the bathroom, he had a sudden idea. He took out the water storage tank and split it in half with an angle grinder. He fixed universal wheels at the four corners of a wooden board for easy mobility. He used wooden strips and self-tapping screws to increase the height of the tank. He cut an opening on the side of the water storage tank, installed sponge strips to form a door frame, and embedded plastic soft boards to create raised walls. He placed the upper half of the water storage tank on top of the wooden strips to form a roof and painted it with white waterproof paint to enhance its appearance. He used foam strips to piece together discarded honeycomb wooden boards to make a simple door. He cut a hole at the bottom of the tank and installed a drain pipe to form a floor drain. He cut holes on the side and bottom of the plastic bucket and installed direct connectors. He placed the plastic bucket on the roof to form a small water storage device and connected it to a shower head made of water pipes. He installed a tee under the water inlet pipe and connected it to the shower head. He placed a toilet and installed a water tank, fixing it with glass glue. He connected the drain pipe to a sewage tank, horizontally connected a water pipe from the tee of the outlet pipe to the door as the water inlet pipe for the sink, and cut a hole in the door to install a connector. This invention made full use of existing materials and achieved the function of a portable toilet through a series of modifications.
The second case is about another young man who made a portable toilet using a water storage tank and a pallet. When he urgently needed to use the toilet but his wife refused to come out, he brought out a plastic pallet and fixed universal wheels at the four corners of the bottom of the pallet. Although the overall design was relatively simple, it met the basic need for mobility.
The third case is the portable toilet designed by German designer Eva Tint. It has a leaf-like appearance and is made of special environmentally friendly materials. When folded, it measures approximately 12×28 centimeters and can be stored in a woman's handbag. It is equipped with a super-absorbent agent inside that can convert liquid into a gel and prevent leakage. The bottom is printed with usage instructions. This design first gained attention from football fans during the 2008 European Cup. In 2009, it was mass-produced by a German company and sold in the European market in sets of three at a price of 4.5 euros each. Initially, it was mainly targeted at female users to address the issue of long queues for public toilets. Later, its application scenarios expanded to car travel, outdoor gatherings, etc. It came with cleaning wipes for use and could be disposed of as ordinary garbage after use. With the expansion of application scenarios, it gradually gained acceptance from more male users.
