Abstract: The present disclosure belongs to the technical field of fishing operation equipment in fishery, and relates to a net hauler for a trawler. The net hauler includes two rope drums, a drum rotation shaft is disposed on each rope drum and includes a first rotation shaft and a second rotation shaft, a drum is disposed on the first rotation shaft, a cylindrical housing is disposed between two ends of the first rotation shaft and the second rotation shaft, a pivot is disposed on the cylindrical housing. The present disclosure has advantages of changing a net hauling speed and improving a fishing efficiency.

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.

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.

Abstract: The present disclosure belongs to the technical field of fishing operation equipment in fishery, and relates to a net hauler for a trawler. The net hauler includes two rope drums, a drum rotation shaft is disposed on each rope drum and includes a first rotation shaft and a second rotation shaft, a drum is disposed on the first rotation shaft, a cylindrical housing is disposed between two ends of the first rotation shaft and the second rotation shaft, a pivot is disposed on the cylindrical housing. The present disclosure has advantages of changing a net hauling speed and improving a fishing efficiency.

Abstract: An oceaneering test platform device for simulating oceaneering working conditions is disclosed. The oceaneering test platform device comprises a main body, a lifting unit, a plurality of spud legs connected to the main body by the lifting unit, a plurality of base units located correspondingly to the plurality of spud legs and one or more vertical driving unit to enable vertical movement of at least one of the plurality of spud legs. The test platform device facilitates simulation of possible effects caused by unstable and complex ocean environments to an offshore work platform.

Abstract: An oceaneering test platform device for simulating oceaneering working conditions is disclosed. The oceaneering test platform device comprises a main body, a lifting unit, a plurality of spud legs connected to the main body by the lifting unit, a plurality of base units located correspondingly to the plurality of spud legs and one or more vertical driving unit to enable vertical movement of at least one of the plurality of spud legs. The test platform device facilitates simulation of possible effects caused by unstable and complex ocean environments to an offshore work platform.

Abstract: A wave power generator device having hypoid racks includes a buoyant tank, a roller mechanism, guide posts, a power generation platform, a hydraulic energy conversion mechanism and a cross lifting lever. The power generation platform is mounted on guide posts extended into the seabed. The cross lifting lever is provided in the throughhole in the middle of the platform. The lower part of the cross lifting lever is fixed with the buoyant tank by a movable connection rod. The roller mechanism is mounted at both sides of the buoyant tank and appressed to the guide posts. The hydraulic energy conversion mechanism includes a housing, one-way hydraulic cylinders, rolling wheels and is mounted on the power generation platform in cooperation with the cross lifting lever to achieve energy conversion motion to solve the control and adaption problem for a water level difference during the wave power generation.