SAFETY DEVICE FOR PROTECTION SLUICE GATES FROM DOCKING IMPACT Russian patent published in 2016 - IPC E02C1/10 E02B7/20 

FIELD: shipbuilding.

SUBSTANCE: safety device consists of flexible element 1 in the form of a chain or rope passed through navigable span of gateway chamber, and two bogies 3 arranged to move along the walls of chamber of gateway at navale ship 10 on flexible barrier element 1 and connected with its ends. On side walls of bogies 3 on outer side there are resilient inserts secured via friction shoes with possibility of contact of the latter with friction guides installed on horizontal surfaces of gateway chamber walls with symmetric narrowing in direction of movement of bogies. Taper angle is calculated by formula: $$tg\alpha =\frac{Vn-Vk}{2L},$$ provided that: Vn-Vk≤2A, where α is the angle of convergence, Vn-distance between friction guides in initial position of bogie ; Vk - distance between friction guides at bogie stopping; L - design of ship braking path, A - limiting amplitude of deformations of elastic inserts.

EFFECT: technical result consists in improvement of power consumption of the safety device, which allows to increase braking stroke ship in the gate chamber and reduce on the flexible element.

2 cl, 2 dwg