| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tool for mounting and dismounting a valve capable of mounting and dismounting the valve from an end part of a pipe to prevent fluid in the pipe from leaking to the outside without requiring special skill even in a pipe active condition and mounting and dismounting even a large-sized valve by preventing reduction of workability. <P>SOLUTION: This tool for mounting and dismounting the valve is constituted in such a way that a gas bag 1 and an air pipe 2 are provided in the pipe through a valve hole F so as to insert and pull out freely, a cylindrical body 7 provided with a valve connection part 5 capable of connecting the gas bag and the air pipe airtightly in a condition in which they are inserted and pulled out freely for an end connection of the valve C and an air pipe insertion part 6 capable of inserting the air pipe airtightly and freely and storing the gas bag freely and an air pipe connection part 4 capable of connecting the air pipe with an air pump 3 detachably are provided, a prevention means 12 for preventing leakage of pressurized air in the gas bag is provided so as to enable prevention release operation, and an air pipe connection part side of the air pipe is provided so as to freely bring it in and out from a valve hole of the valve removed from the air pipe insertion part of the cylindrical body, a valve connection part, and an end part of the pipe. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
