▎ 摘　　要

NOVELTY - The utility model claims an outdoor water purifying cup, the graphene for water cup comprising a cup body, a purified water cavity, water cavity, the one-way liquid film, a filter core, a thread connection port, a piston, a pushing and pulling belt, water outlet, water outlet connected with the water purifying cavity, the water purifying cavity through screw thread connection port connected with the raw water cavity, clean water cavity is fixed with a one-way liquid film, the one-way pouring film with graphite filling material of the filter core is fixed connection, the filter element containing the graphite filling material comprises silicon oxide graphene composite filter layer; negative ion filtering layer, a carbon fibre layer, water cavity is installed at the bottom of up and down movement of the piston, the piston is provided with a push-pull belt. This utility model has a high filtration, sterilization, bacteriostasis and so on, which effectively ensures the drinking health of outdoor activity.