| 摘要 |
PURPOSE: To improve the connectability so that the piping connection may be achieved in one operation to insert the piping when the piping is connected, to prevent the piping from coming off even when the impact is applied from the outside, and to secure the guarantee for a long time by absorbing the vibration. CONSTITUTION: A piping connection structure is provided with a socket 3 which is provided on the outer circumference of the piping 1 of either an inner cylinder or an outer cylinder, formed in the tapered shaped expanding in the tube end direction, and provided with a plurality of engaging holes 2 in the circumferential direction, a locking member 6 which is formed by a plurality of arms 10 which extend in the outer circumferential direction of a tube end part of other piping and expand in the tube end direction, and a pawl 5 capable of engagement with an engagement hole 2 on the outer circumferential side of a top end part is formed in the member 6, and a cover 8 which is provided to cover the outside of the arms 10 of the locking member 6, and provided with a hole 7 for releasing the engagement at the coaxial position with the arms 10 of the locking member 6. |
