| 摘要 |
A first pipe coupler member secured to one end of a hose pipe is pressed into connected state against a second pipe coupler member with a packing compressed therebetween by a lock collar slidably engaged at one end with the first coupler member and rotated into lock engagement at the other end with the second coupler member in the manner of a bayonet coupling with the aid of a retractable lever handle. The second coupler is connected previously to a port in a vessel or equipment such as a pump or to another pipe. Coupling or uncoupling of the hose pipe can be carried out thus by turning the lock collar through an angle of only about 45 DEG .
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