| 摘要 |
FIELD: machine building.SUBSTANCE: invention relates to the lock lid (1) made out of shaped plastic material, for the tank (2) with manhole intended to lock the plug (4) in the manhole (3) of the tank (2). The lid contains cartridge (6), than surrounds the plug and manhole of the tank, ring (7) secured around the lid cartridge (6), and is made such that to have central hole (17) ensuring access from outside of the lid (1) in the tank (2) via the plug (4), and cap (23) secured to the ring and made to close the hole (17). The cap (23) has flat head (23A) sufficiently large to cover the hole (17), and lock lugs (25) projecting, in principle, at right angle relatively to the head and at distance from each other along the ring circle of the hole (17) of the ring (7), they are pressed, as in vice, between the ring (7) and lid cartridge (6).EFFECT: improved design.29 cl, 7 dwg |
