FISH-PASSING LOCK Russian patent published in 2005 - IPC

FIELD: hydraulic structures, particularly fish passing facilities to permit brood fishes to pass through retaining structures to spawning and meadow areas.

SUBSTANCE: fish-passing lock includes upper flume, power supply unit, and fish accumulating fume with upper and lower gates defining working chamber. Working chamber has ichthyological area located in bottom recess and adjoining upper gate. Fish-passing lock also has stimulating device with container movement mechanism. The stimulating device is mounted on guide members arranged on side fish accumulating fume walls. Fish-passing lock includes side bypass channels provided with upper and lower gates and additional fish-accumulating fumes. Fish-passing lock has additional containers, gates and stimulating netted webs. Additional fish accumulating fumes and containers are formed inside bypass channels. Additional containers are installed in transversal section of ichthyological area arrangement and have longitudinal dimension equal to that of ichthyological area. Additional containers are located in bottom recesses and side with upper gates of bypass channels. Additional netted webs are formed on stimulation device carriage, may freely pass along side bypass channel walls and are connected with independent hoist mechanisms. Additional gates are formed in side walls of fish accumulating fume and bypass channels and connected with independent drives for vertical movement thereof.

EFFECT: provision of effective conditions for fish attraction and accumulation.

4 cl, 8 dwg