| 摘要 |
The present invention relates to multi-joint hose assembly. The multi-joint hose assembly comprises: a gas supply module for receiving a helium gas by being connected to a helium gas supply tank; a gas discharge module which is arranged with an interval from the gas supply module and discharges an inside helium gas to a helium gas collecting tank; and at least one connection module for moving the helium gas by being arranged between the gas supply module and the gas discharging module. The gas supply module comprises a supply tank connection unit combined with the helium gas supply tank; an initial connection unit for supplying the helium gas to the gas connection module by being connected to the connection module; and a metal supply pipe for moving the helium gas between the supply tank connection unit and the initial connection member. The supply tank connection unit comprises: a coupling member in which a ball bearing flow space is formed by coupling a front end with a supply coupling and in which a lubricant flow groove is formed at an inner wall surface; a first ball bearing stored to perform rolling movement in the ball bearing flow space and in which a supply pipe insertion path to insert an end of the supply pipe is formed inside; a plurality of O-rings which are combined with the inner wall surface of the coupling member at the front and rear of the lubricant flow groove and prevent the leakage of the helium gas in the flow of the first ball bearing; and a first ball bearing housing which is coupled with a rear end of the coupling member, and presses the O-ring to maintain a connection state between the O-ring and the first ball bearing, wherein a ball bearing exposing hole, which exposes the one area of the first ball bearing to the outside, is penetrated. |
