US 11,692,322 B2
Spur dike type fishway inlet
Xiaogang Wang, Nanjing (CN); Long Zhu, Nanjing (CN); Tao Wang, Nanjing (CN); Zhonghua Li, Nanjing (CN); Shilong Li, Nanjing (CN); Yongzeng Huang, Nanjing (CN); Kaixiao Chen, Nanjing (CN); Biao Wang, Nanjing (CN); Guoxiu Shang, Nanjing (CN); Zhe Wang, Nanjing (CN); Hongze Li, Nanjing (CN); Qiaoyi Hu, Nanjing (CN); Yifei Gao, Nanjing (CN); and Feifei He, Nanjing (CN)
Assigned to NANJING HYDRAULIC RESEARCH INSTITUTE, Nanjing (CN)
Filed by NANJING HYDRAULIC RESEARCH INSTITUTE, Nanjing (CN)
Filed on Aug. 25, 2022, as Appl. No. 17/895,569.
Prior Publication US 2023/0085258 A1, Mar. 16, 2023
Int. Cl. E02B 8/08 (2006.01)
CPC E02B 8/085 (2013.01) 3 Claims
OG exemplary drawing
 
1. A spur dike type fishway inlet comprising:
an upstream flow block wall;
an extra water supply nozzle; and
an artificial reef,
wherein the upstream flow block wall is arranged upstream of the fishway inlet,
wherein a starting end of the upstream flow block wall is connected with an upstream side wall of the fishway inlet through a connecting shaft and a hydraulic strut,
wherein the extra water supply nozzle is installed in the fishway inlet,
wherein the artificial reef is set up within a sheltered area of the upstream flow block wall,
wherein the upstream flow block wall is a floating bulkhead gate, the floating bulkhead gate comprising:
a floating bulkhead body;
a set of filling and draining devices; and
a set of fish attracting devices,
wherein the filling and draining devices are installed in the floating bulkhead body,
wherein the connecting shaft is coupled to one end of the floating bulkhead body, and a fixing foot is coupled to a bottom of an other end of the floating bulkhead body,
wherein an outlet of the extra water supply nozzle faces the fishway inlet, and
wherein the artificial reef is arranged near the fishway inlet and downstream of the flow block wall, which is conducive to a formation of near-natural water flow to attract fish into the fishway inlet, and for fish to rest.