CAP FOR LIQUID CIRCULATING CONTAINER

To provide a cap applied to a water-cooled garment, etc. and allowing efficient exchanging work of liquid or a container in a liquid circulating container.SOLUTION: A cap has a base part having detachable first engagement means attached to a mouth of a liquid container and a using plug detachably attached to the cap. The using plug has a feeding pipe feeding the liquid in the container to the outside and a return pipe returning the liquid outside the container to the container. A swollen part having the feeding pipe and the return pipe is provided at a lower part of the using plug, the swollen part has a plug functional part, and the base part has a receiving recess provided on an upper face of the base part and receiving at least a part of the swollen part, an opening provided in the receiving recess and allowing insertion of inner pipe parts of at least the feeding pipe and the return pipe of the swollen part into a container inner. The using plug and the base part have second engagement means. Provision of the second engagement means allows the using plug to function as a plug body with respect to the base part, and allows detachable attachment of the using plug.SELECTED DRAWING: Figure 2 【課題】 水冷服などに適用され、液体が循環する容器において、液体の交換作業又は容器の交換作業を効率化できるキャップを提供する。【解決手段】 液体用の容器の口部に取り付ける着脱自在の第１係合手段を備えた基体部と、キャップに着脱自在に装着される使用栓体とを有し、使用栓体は、容器内の液体を容器外へ送る送出管と、容器外の液体を容器内へ戻す戻り管とを備えた構造となっており、使用栓体の下部には送出管と戻り管を有する膨出部が設けられ、膨出部には栓機能部を備えており、基体部は、基体部の上側面に設けられ、膨出部の少なくとも一部を受け入れる受入凹部と、受入凹部に設けられ、膨出部の少なくとも送出管及び戻り管の内管部を容器内側に挿通させる開口部と、使用栓体と基体部は第２係合手段を有しており、第２係合手段を設けることによって、使用栓体を基体部に対して栓体として機能させつつ、着脱自在に取り付けたことを特徴とする。【選択図】 図２