PROBLEM TO BE SOLVED: To provide a device for automatically opening/closing a faucet, which can suppress breakage of a valve body even when pressure in the valve box becomes high.SOLUTION: A device 1 for automatically opening/closing a faucet includes: a valve box 11 formed with an internal space 11a a branch pipe 31 communicating with the internal space, and formed with a branch space 31a opened to the outside a sealing member 36 attached to the branch pipe and configured to close the opening of the branch space and a pressure release unit 41 formed in at least one of the branch pipe and the sealing member, and configured to remove the sealing member from the branch pipe before the valve box is broken by pressure acting on the internal space.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2018,JPO&INPIT【課題】弁箱内の圧力が高くなっても弁箱が破壊されるのを抑えた給水栓自動開閉装置を提供する。【解決手段】給水栓自動開閉装置1は、内部空間11aが形成された弁箱11と、内部空間に連通するとともに外部に開口する分岐空間31aが形成された分岐管31と、分岐管に取付けられて分岐空間の開口を塞ぐ封止部材36と、分岐管及び封止部材の少なくとも一方に形成され、内部空間に作用する圧力により弁箱が破壊される前に分岐管から封止部材を外す圧力解放部41と、を備える。【選択図】図3
