| 摘要 |
FIELD: packing industry. ^ SUBSTANCE: multi-element lock from plastic with lower part placed onto reservoir and having outlet neck. Outlet neck passes outside upwards over area of tightening with reservoir and has a circular wall with outer thread, on which threaded cup is retained with the possibility of screwing between lower tightened position and upper open position. Outlet neck has cover surface adjacent to circular wall with central outlet hole. Besides facilities similar to ribs are provided to maintain rigidity, which produce connection between circular wall and cover surface and prevent deformation of outlet neck under action of internal pressure. Threaded cap is equipped with central sealing journal that engages with outlet hole in closed position of lock. Besides at least one drinking hole is provided as arranged between external wall of threaded cap cover and central journal. ^ EFFECT: creation of multi-element lock, which may maintain a relatively high pressure in the reservoir. ^ 9 cl, 2 dwg |
