Trawler with fishing and conveying device and fishing method
AssigneeZhejiang Ocean University
InventorsYonghe Xie, Guibiao Wang, Wei Wang, Junlai Li
Life of this patent
Estimating the term…
Abstract
The present disclosure provides a trawler with a fishing and conveying device and a fishing method, and belongs to the technical field of trawlers. The trawler of the present disclosure includes a hull structure and two fishing devices, wherein the fishing device includes a first rotary rod, a second rotary rod, a fixing frame and a fish suction mechanism, the first rotary rod is hinged at the bow of the hull structure, a fishing net is connected on the first rotary rod, the second rotary rod is hinged at the stern of the hull structure. The present disclosure is capable of realizing continuous fishing and directly conveying the fish onto the trawler, and thus is simple to operate.
Claims10
A trawler with a fishing and conveying device, comprising a hull structure (1) and two fishing devices, wherein the two fishing devices are located at portside and starboard of the hull structure (1) respectively, and each of the fishing device comprises:
- a first rotary rod (11), hinged at the bow of the hull structure (1) through a first hinge shaft (111), wherein an axial direction of the first hinge shaft (111) is consistent with a length direction of the hull structure (1), and a fishing net (12) is connected on the first rotary rod (11);
- a first driving unit, being capable of driving the first rotary rod (11) to rotate around the first hinge shaft (111);
- a second rotary rod (13), hinged at the stern of the hull structure (1) through a second hinge shaft (131), wherein an axial direction of the second hinge shaft (131) is consistent with the length direction of the hull structure (1), a mounting plate (2) is fixed at an end of the second rotary rod (13) away from the second hinge shaft (131), the mounting plate (2) is provided with a through-hole (21) and a third winch (22), and a third wire rope (221) is wound on a drum of the third winch (22);
- a second driving unit, being capable of driving the second rotary rod (13) to rotate around the second hinge shaft (131);
- a fixing frame (3), wherein a free end of the third wire rope (221) passes through the through-hole (21) to be fixedly connected with the fixing frame (3), a left end of the fixing frame (3) is detachably connected with the bottom of the fishing net (12), a connection pipe (5) is fixedly disposed at a right end of the fixing frame (3), a tapered pipe (33) is rotatably disposed in an opening at the left end of the fixing frame (3), an opening at a left end of the tapered pipe (33) is greater than an opening at a right end of the tapered pipe (33), a spiral deflector (332) is disposed on an inner side wall of the tapered pipe (33), and a net bag (4) is fixedly connected at a right end of the tapered pipe (33) and in communication with the connection pipe (5);
- and
- a fish suction mechanism, disposed on the hull structure (1) and capable of sucking fish in the net bag (4) through the connection pipe (5) and conveying the fish onto the hull structure (1).
A fishing method using a trawler with a fishing and conveying device, comprising the following steps:
- at step 1), in an initial state, detachably connecting a fishing net on a first rotary rod with a fixing frame through a first flange and a second flange;
- starting a first winch to release a first wire rope (114) on a drum of the first winch (112) to enable the first rotary rod (11) to be rotated in a horizontal state, and simultaneously, starting a second winch (132) to release a second wire rope (134) on a drum of the second winch (132) to enable a second rotary rod (13) to be rotated in a horizontal state;
- at step 2), starting a third winch (22) to release a third wire rope (221) on a drum of the third winch (22) to lower the fixing frame (3) into water, and then, starting the trawler to enable a hull structure (1) to move forward and opening the fishing net (12) to allow fish to enter the fishing net (12) by a water flow;
- using a spiral deflector (332) on a tapered pipe (33) to drive the tapered pipe (33) to rotate and form a rotational flow at a left side of the tapered pipe (33) so as to suck the fish in the fishing net (12) into a net bag (4);
- and
- at step 3), due to forward movement of the hull structure, by the water flow, an elastic rubber membrane (82) on a top of a receiving groove (81) to enable to the elastic rubber membrane (82) to be concaved inwardly, discharging a liquid in the receiving groove (81) into a lower cavity (612) of a piston cylinder (6) through a conveying pipe (83) to push a piston (61) and a piston cylinder (62) of the piston cylinder to move upward so that a connection plate (516) moves upward and a connecting rod (514) drives a stopper block (513) to move upward to open a connection pipe (5), and start a fish suction pump (15) simultaneously to suck the fish in the net bag (4) into a fish cabin (14) through the connection pipe (5).
Dependencies are inferred from the claim text.