Connection structure connecting conduction port and pipe end part, opening / closing valve device, and removal method of sealing member

摘要

Problem to be solved: to provide a connection structure in which a sealing member, which can be disposed at an appropriate position in the connection state between the conduction port and the pipe end portion, can be easily exchanged, a connection structure in which a conduction port and a pipe end are connected, an opening / closing valve device, and a method of removing a sealing member.The connection structure X between the conduction port 12 of the container valve device 1 and the pipe end portion 102 of the flow path pipe 100 isThe conduction port 12 and the pipe end part 102 are arranged in a butt shape andBetween the conduction port 12 and the piping endA ring-shaped gasket 20 having an opening 21 through which a substantially columnar insertion end 203 is inserted in the removal jig 200 is disposed.A mounting groove 122 for mounting the gasket 20 is formed in the conduction portTo the body side B in the mounting state in which the gasket 20 is mounted on the mounting grooveA removal jig 200 having an insertion tip 203 inserted into an openingA tapered space 123 for preventing interference with the insertion end portion 203 when tilted to remove the gasket 20 is provided.Diagram