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763results about "Fishing" patented technology

Underwater LED fish gathering lamp control method and system based on light field scattering model

PendingCN120475567AElectrical apparatusFishingVisual matchingUnderwater light field
The invention discloses an underwater LED fish gathering lamp control method based on a light field scattering model, and the method comprises the following steps: obtaining water optical characteristic parameters and environmental parameters of a target water area in real time, and building an underwater light field scattering model through employing a radiation transfer equation in combination with a Monte Carlo simulation method; with improvement of target fish school gathering efficiency and reduction of energy consumption as optimization objectives, environment parameters are taken as constraint conditions, illumination effects under different LED parameter combinations are simulated through a light field scattering model, and LED control parameters with optimal comprehensive performance are determined; a control instruction is generated according to the LED control parameters, and the working state of each LED unit is adjusted; meanwhile, fish school gathering data and current change values of water temperature, salinity and turbidity are monitored in real time and fed back to the light field scattering model for parameter correction, and closed-loop control is formed. The underwater LED fish gathering lamp control method solves the technical problems of low light field distribution prediction precision, insufficient fish school visual matching performance, poor environmental adaptability and unbalanced energy consumption optimization in the existing underwater LED fish gathering lamp control method.
Owner:ZHUHAI LEEDMART TECH CO LTD

Mandarin fish domestication feeding device

The utility model discloses a mandarin fish domestication feeding device which comprises a feeding pipeline and a bait temporary storage tank arranged at the upper end of the feeding pipeline, a feeding hopper is arranged at the upper end of the bait temporary storage tank, and the feeding pipeline comprises a vertical pipe with the upper end in butt joint with the bait temporary storage tank and a horizontal discharging pipe in butt joint with the bottom of the vertical pipe. One end of the horizontal discharge pipe is connected with a high-pressure water source or air source; the vertical pipe is of a multi-section telescopic rod structure. A cathode ring piece and an anode ring piece are arranged at the two ends of the vertical pipe, and the cathode ring piece and the anode ring piece are connected with a pulse generator used for outputting pulse signals and a pulse power amplifier used for controlling output voltage through wires. The fish feeding device can achieve feeding at different depths, can feed live fish, dead fish and feed according to different proportions, is simple and convenient to operate, greatly reduces the workload of manual feeding, and can be widely applied to the field of bait feeding.
Owner:HUANGSHAN CHUANXI AGRICULTURE & FISHERY TECHNOLOGY CO LTD

Floating type fish collecting device and fish collecting system for water conservancy and hydropower engineering

The invention relates to the technical field of fishery water conservancy and hydropower engineering, and discloses a floating type fish collecting device for water conservancy and hydropower engineering, which comprises a floating platform, a net cage fixedly connected to the bottom of the floating platform, a support frame fixedly connected with the net cage and arranged on the bottom of the floating platform, and a plurality of groups of fish inlets arranged on the net cage; the fish luring mechanism is arranged on the floating platform, a feeding assembly is arranged on the side, close to the net cage, of the fish luring mechanism, a bait bag is connected to the feeding assembly, and the fish luring mechanism drives the bait bag to evenly rotate in the net cage through the feeding assembly; the inner gear ring is arranged on the outer wall of the floating platform, a linkage mechanism connected with the inner gear ring is arranged on the floating platform, and a fish collecting assembly is arranged on the side, close to the net cage, of the inner gear ring; according to the device, the diffusion effect of bait can be improved, waste of the bait is reduced, meanwhile, the trapping range of fishes is expanded, vigilance of the fishes is reduced, and the fish trapping effect of the device is improved.
Owner:HUANENG LANCANG RIVER HYDROPOWER CO LTD +2

Deep-sea lamplight trapping type continuous pumping fishing device and method

The invention discloses a deep-sea lamplight trapping type continuous pumping fishing device and method, and relates to the field of marine fishery fishing, and the deep-sea lamplight trapping type continuous pumping fishing device comprises a sonar detection system, a lamplight trapping system, a negative pressure pumping unit, a flexible conveying system and a control system which are mounted on a ship; the sonar detection system comprises a sonar detector; the lamplight trapping system comprises a plurality of fish luring lamps which are put underwater at a certain depth; the negative pressure pumping unit comprises a fish pump mounted on the ship; the flexible conveying system comprises a winch arranged on the ship, a fish suction hose is wound on the winch, one end of the fish suction hose is connected with the negative pressure pumping unit, and a fish suction protective cover is arranged at one end of the fish suction hose; the control system comprises a lifting frame installed on the ship, a plurality of traction ropes are connected to the lifting frame, and a plurality of lifting winches used for controlling the traction ropes to stretch out and draw back are arranged on the lifting frame. According to the method, target species are caught better and accurately, damage and waste to fishes are reduced, and the integrity of caught fishes is improved.
Owner:FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI

Device for sampling plankton in water

The utility model relates to the technical field of ecological environment detection, in particular to an underwater plankton sampling device which comprises a main body, a sampling driving component is arranged in the main body, and a control collecting component is fixedly connected in the main body; according to the utility model, the sampling depth can be accurately controlled by utilizing the depth sensor, in order to meet different research requirements, the tube wheel is driven by the motor to wind the sinking tube, and the automatic control driving mechanism can quickly complete sampling and can drive the sampling barrel to move up and down in water to realize sampling at different depths, so that the sampling efficiency is improved. The microprocessor is used for controlling the operation of the depth control mechanism and the driving mechanism, automatic sampling is realized, the inner wall of the sampling barrel is smooth, attachment and damage of plankton in the sampling process are avoided, automatic sampling is realized through the control unit, the operation is simple, and the use is easy; the sample collection container can be used for storing sampled plankton samples, so that the samples are prevented from being polluted.
Owner:SHAANXI WATER CONSERVANCY & ELECTRIC POWER SURVEY & DESIGN INSTITUTE (GROUP) CO LTD

Offshore wind power submarine cable scouring protection device

The invention relates to the technical field of underwater optical cables, and discloses an offshore wind power submarine cable scouring protection device which comprises a wind power body, a connecting body connected with the water bottom is arranged on the surface of the wind power body, and a cable body is connected to the surface of the wind power body; when the cable body is laid, the cable body can be connected with the ground under the action of the connecting shell, impact of water can be prevented under the action of the protection mechanism, and then the protection capacity of the connecting shell on the cable body is improved. In daily use of the connecting shell, crabs can be caught under the action of the catching mechanism, so that the crabs are located in the connecting shell, the crabs prey on algae on the surface of the cable body, the possibility that the algae survive on the surface of the cable body is reduced, and under driving of the protection mechanism, the crabs are prevented from being damaged. And the driving mechanism and the oxygen supply mechanism supply oxygen to the connecting shell, so that the survivability of the crabs is improved.
Owner:SHENZHEN GUONENG CHENTAI TECH CO LTD

Sustainable luring ecological floating island system and sustainable fishing method thereof

The invention discloses a sustainable luring ecological floating island system which is characterized in that fish schools in an open type water area are induced to enter a water area where an ecological floating island is located through planned enhancement releasing feeding and going out, and the fish schools in the water area where the ecological floating island is located are captured through a fishing device and put into a besieging space. The method can ensure that the species and number of aquatic organisms in an ecological floating island ecological system are kept relatively stable within a certain time, conforms to the development concept of sustainable fishery, can enable fishing and fishing pleasure and ecological environment protection to cooperatively develop, can ensure that the fishing and fishing pleasure can be continuously and healthily carried out for a long time, and has a wide application prospect. Therefore, a sustainable and stable fishing place is provided for fishing enthusiasts through a sustainable inducing and breeding combined mode, and meanwhile protection and recovery of a water area ecological system are considered; the invention further discloses a sustainable fishing method of the sustainable luring ecological floating island system, and by means of a sustainable luring combination mode of the ecological floating island system, catching and fishing activities can be continuously carried out.
Owner:ZHUHAI HONGDIAN TECH CO LTD

A method and system for monitoring and sampling aquatic biodiversity

The present application provides a method and system for monitoring sampling of aquatic biodiversity, which monitors the target waters, divides multiple sampling sub-areas according to water monitoring data; collects samples of aquatic organisms in the sampling sub-areas to obtain a biological sample set; extracts multiple sample clusters of the biological sample set based on the sample characteristics of the biological samples in the biological sample set, and performs diversity assessment on all sample clusters to obtain diversity indicators of aquatic biological communities in the sampling sub-areas; determines the relative density of each sample cluster, and determines the heterogeneity index of each sample cluster in spatial distribution according to all relative densities and water characteristics of the sampling sub-areas; determines the optimization degree of the sampling sub-areas based on all heterogeneity indices and diversity indices, and then determines the target sampling area for aquatic biodiversity monitoring according to all optimization degrees. The scheme of the present application can realize the accurate selection of sampling areas with high representativeness and high analytical value.
Owner:陕西省环境监测中心站

A gateway for use in a scallop trap and a method of retaining scallops

A gateway for use in a scallop tray comprises a passageway 1 having an external opening at one end and an internal opening at an opposing end. A hinge 11 is included adjacent to an upper periphery 9 of the passageway and a gate in which each of a plurality of independently-movable arms 17 are pivotable about the hinge between a closed position (in which the arm extends across the passageway) and a deflected position (in which it is spaced from the lower periphery 3 of the passageway.) To enter the gate, a scallop needs only to push against at least one of the arms, moving it into its deflected position. A scallop trap is provided comprising a chamber and the gateway, as well as a method of retaining scallops within a scallop trap using the gate.
Owner:FISHTEK MARINE LTD

ROV system carrying multi-degree-of-freedom mechanical arm and use method

The invention discloses an ROV system carrying a multi-degree-of-freedom mechanical arm and a using method, the ROV system comprises the multi-degree-of-freedom mechanical arm, a collecting net cage, a plurality of underwater cameras, a plurality of LED lamps, a sonar and a plurality of underwater sensors, and by carrying the multi-degree-of-freedom mechanical arm, the flexibility of the mechanical arm is improved; (2) a plurality of underwater cameras are installed on the two sides of an ROV to observe the environment, installed near a mechanical arm joint to observe the grabbing condition and installed on a catching cage to observe the collection condition of marine products; (3) a leakage-proof catching cage is specially designed, so that the caught marine products are prevented from leaking; 4) a biological recognition algorithm is provided, target species and non-target organisms are distinguished based on AI image processing, and the fishing efficiency is improved; (5) a sonar and a near-field sensor are arranged, and ROV underwater obstacle avoidance and terrain adaptation are achieved; and (6) ROV bottom-sitting operation is provided, different from a traditional ROV design that the buoyancy is slightly larger than the weight, the design gravity of the ROV is slightly larger than the buoyancy, so that the ROV can carry out bottom-sitting operation in a free state, and interference of a propeller to the environment is reduced.
Owner:JIANGSU UNIV OF SCI & TECH

Device and method for fish organism intelligent identification tracking and state judgment

The embodiment of the invention provides a device and a method for intelligent identification tracking and state judgment of fish organisms, which are used for collecting and identifying fish school information of a water area to be detected, a tracking identification platform, and a water area processing assembly, a bait throwing assembly and an identification assembly which are respectively arranged on the tracking identification platform, the tracking identification platform is arranged on the bank of a water area to be detected; the bait throwing assembly is used for throwing bait into the water area to be detected so as to attract fish schools; the water area treatment assembly is used for being arranged in a water area to be detected to perform water flow disturbance on the water area; and the identification assembly is used for collecting a fish school video of the water area to be detected and identifying the type and growth state information of each fish in the fish school video. According to the device and the method, a large amount of original data is obtained through long-time identification and tracking, and the fish type and fish state information in the water area to be detected is efficiently obtained based on the identification assembly.
Owner:HUANENG LANCANG RIVER HYDROPOWER CO LTD +6

Underwater fish gathering lamp

The utility model discloses an underwater fish gathering lamp which comprises a radiator, the radiator is a hollow sectional material radiator, lamp beads are attached to the outer surface of the radiator to form a light source plate, a glass tube is arranged outside the radiator and the light source plate in a sleeved mode, and a closed cavity is formed between the outer wall of the radiator and the inner wall of the glass tube. The hollow part of the profile radiator is a radiating channel, two ends of the radiator and two ends of the glass tube are connected through elastic rubber rings and end covers in a sealing mode, and gaps are filled with pouring sealants. According to the underwater fish gathering lamp, the hollow sectional material radiator is adopted, after water flow enters the hollow radiating channel and is heated, the density of the water flow becomes light and rises, the chimney effect similar to that in air is formed, water resistance can be reduced, and rapid heat exchange can be achieved.
Owner:HAIXING MARITIME ELECTRIC GROUP

A fishway light illumination fish luring test device

This invention discloses a fishway illumination-based fish-attracting experimental device, belonging to the field of fish-attracting experimental technology. It includes: an experimental water tank, positioned above a reservoir, divided into an upstream, midstream, and downstream section, with an adaptation zone in the downstream section; a support frame erected above the midstream section, covered with a black cloth; and an illumination mechanism located on the upper wall of the midstream section, comprising LED lights and connecting components. Through the structural design of the connecting components, this invention allows for multi-dimensional flexible adjustment of the LED lights' horizontal position, illumination angle, and vertical height, breaking the limitations of fixed illumination modes in traditional experimental devices. The position and angle of the illumination can be adjusted according to experimental needs, and the adjustment operation is simple and convenient. It enables multi-parameter illumination research, allowing for quantitative study of the impact of different illumination conditions on fish migration behavior, meeting the needs of different experimental scenarios, and providing support for personalized fish-attracting research.
Owner:HUADIAN JINSHAJIANG UPSTREAM HYDROPOWER DEV CO LTD

Soft-shell crab molting state monitoring and automatic catching device

The invention discloses a soft-shell crab molting state monitoring and automatic capturing device, and particularly relates to the technical field of soft-shell crab molting state monitoring and automatic capturing, and the soft-shell crab molting state monitoring and automatic capturing device comprises a monitoring module, an environment self-adaption module, a capturing module, a control module and a remote monitoring module. According to the soft-shell crab molting state monitoring and automatic capturing device, through cooperative application of multi-sensor data fusion and a deep learning algorithm, full-process intelligent monitoring and automatic capturing of the soft-shell crab molting state are achieved; by combining technical means such as environment self-adaptive adjustment, wireless low-power-consumption communication, large-scale multi-pond linkage and night weak light optimization, efficient, stable and safe operation of the system in various breeding scenes is guaranteed, and meanwhile, modular software and hardware design and a distributed cloud edge collaborative architecture have a good application prospect. The device has excellent expansibility, maintenance convenience and intelligent operation and maintenance capability, and the automation degree and production benefits of soft-shell crab culture are greatly improved.
Owner:GUANGDONG ENG POLYTECHNIC COLLEGE

System for conveying fish fries on water

The utility model relates to a water fry conveying system which comprises a conveying device, a breeding device and a connecting assembly, the conveying device comprises a fish suction pump and a fish outlet, a fish suction pump pipeline is connected to the fish outlet, the conveying device is used for conveying fries, the fish suction pump is used for extracting the fries located in the conveying device, and the breeding device comprises a fish inlet. The breeding device is used for breeding fish fries, the connecting assembly comprises a conveying part and flexible joints, the two opposite ends of the conveying part are connected to the fish inlet and the fish outlet through the flexible joints correspondingly, and the conveying part is used for conveying the fish fries to the breeding device from the conveying device through the connecting assembly. The technical scheme provided by the utility model can be suitable for severe environments such as overwater stormy waves, the environmental adaptability is better, compared with a traditional fry putting mode, the putting time can be saved, damage to fries can be reduced, and the use reliability and safety are higher.
Owner:JIANGSU LONGYUAN OFFSHORE WIND POWER CO LTD +1

A flow generation device

A flow generation device (100; 200; 300; 400; 500) for flowing liquid and biomass (101), the flow generation device comprises a first rotor (103; 303; 403; 503) having an axis of rotation (A) and an outer radius (R), a housing (104; 304; 404; 504) encompassing the first rotor and forming a closed liquid volume with an inlet (105) and an outlet (106) for liquid and biomass, the first rotor adapted to provide a circulating motive liquid flow (107; 507) within the housing, a liquid and biomass channel (109; 209; 309; 409; 509) separate from the housing and extending within the housing from the inlet to the outlet, the liquid and biomass channel comprising openings (111; 211; 511) for the circulating motive liquid flow to flow the liquid and biomass inside the liquid and biomass channel from the inlet to the outlet.
Owner:ANDFJORD INNOVATION AS

LED lamp for collecting fishes on water surface

The LED lamp comprises a lamp shell, a light source, a light-transmitting cover, a pipe fitting and a side cover, the lamp shell is provided with a light-emitting end, the light-emitting end is provided with a plurality of connected light-emitting faces, included angles are formed between the light-emitting faces to enlarge the light-emitting range of a main light area, the light source is installed on the light-emitting faces, and the light-transmitting cover is installed on the light-emitting faces. The light-transmitting cover is mounted at the light-emitting end to cover the light source on the light-emitting surface; the lamp shell is provided with a through cavity penetrating through the lamp shell, the pipe fitting is communicated with the through cavity, and liquid is guided to flow through the through cavity through the pipe fitting to accelerate heat dissipation of the lamp shell. According to the structure, the lamp shell and the back shell are made of magnesium alloy, and the cavities are formed in the lamp shell and the back shell, so that the overall weight of the lamp is reduced, and the load in use is effectively reduced. The through cavity is formed in the lamp shell, the pipe body is inserted into the through cavity, the water pump is connected with the pipe body, water flow is guided into the through cavity of the lamp shell through the water pump, the water flow penetrates through the through cavity from one side of the lamp shell and then is discharged from the other side of the lamp shell, the heat dissipation efficiency is improved, the lamp efficiency can be improved, and the power can be better improved under the same size.
Owner:GUANGDONG MEIFEI LIGHTING CO LTD

Fish collecting device based on negative pressure non-contact fish suction

PendingCN120360067AFishingStream flowFishery
The invention discloses a fish collecting device based on negative pressure non-contact fish suction, a main body is a hollow fish collecting tank body, and the fish collecting device is provided with functional pipelines such as a fish suction pipeline, a fish discharge pipeline, a vent valve, an oxygen valve, a high-low drain pipe and the like, and pressure and liquid level sensors. The base is made of stainless steel, a transparent window is arranged in the middle of the base, and an access hole is formed in the top of the base. The control host is connected with the valves, the water pump and the sensor to achieve automatic control. During working, water is pumped into the tank body firstly, then part of water is pumped out to form negative pressure, fish is sucked through the negative pressure, inlet and outlet flow is kept consistent during fish suction so as to maintain constant pressure in the tank, and temporary rearing or fish discharging can be achieved. The device avoids mechanical damage to fish bodies, and is relatively simple in structure, low in cost and suitable for catching and conveying fishes in large-scale facility culture in deep and far sea.
Owner:FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI

Modular hybrid speargun

A system for underwater hunting contains a plurality of components which allow for customization of the speargun based on the user's needs and the conditions where a user is hunting. By allowing rapid additions or removals of certain components, the invention allow the user to easily modify the firing characteristics of the speargun, and thus target a wider range of prey across a wider range of environmental conditions than those designs currently available in the prior art.
Owner:LABOCCETTA MARK

Ocean condition prediction device, ocean condition prediction system, ocean condition prediction method and program

Provided are a sea condition prediction device, a sea condition prediction system and a program with which it is possible to more effectively and more accurately display sea conditions in a high resolution on board a ship. This sea condition prediction device (10) comprises: a sea condition data acquisition unit (101a) which acquires first predicted sea condition data for a predetermined area; an observation information acquisition unit (101b) which acquires seawater observation information from a detection unit (20) installed on a ship; and a sea condition data calculation unit (101c) which, on the basis of the first predicted sea condition data and the observation information, calculates second predicted sea condition data having a higher spatial resolution than the first predicted sea condition data.
Owner:FURUNO ELECTRIC CO LTD

Octopus trapping and recycling device

The utility model discloses an octopus trapping and recycling device, which belongs to the technical field of octopus trapping and comprises a trapping device and a recycling device, the trapping device comprises a plurality of trapping tanks, a trapping rope and fish-shaped octopus hooks, the trapping tanks are arranged on the trapping rope, the trapping tanks are made of transparent materials, and the recycling device is made of transparent materials. The fish-shaped octopus hook is dragged at the bottom end of the interior of the trapping tank, a plurality of water leakage openings are formed in the bottom of the trapping tank, the recycling device is installed on a boat side of a fishing boat, and the trapping rope recycles the trapping tank through the recycling device and takes out octopus from the trapping tank. Octopus is attracted into the trapping tank through the fish-shaped Octopus hook, and the soft hook on the fish-shaped Octopus hook prevents the Octopus from escaping from the trapping tank; during recovery, the trapping rope is pulled, the trapping rope enables the main pipe to rotate on the supporting shaft, and pulling is easier; the tank opening of the trapping tank is clamped between the two round rods, and the octopus is dug out in time; the octopus trapping and recycling device improves the efficiency of trapping and recycling octopus.
Owner:LUDONG UNIVERSITY +2

Intelligent fishing method, device and system and storage medium

The invention provides an intelligent fishing method, device and system and a storage medium. The method comprises the following steps: acquiring a target image sequence of an underwater environment in a to-be-detected water area containing fishes; performing feature extraction and feature classification processing in sequence based on the target image sequence, and determining a target recognition result of the target fish; determining carrier pose data of the intelligent fishing system according to a target pixel coordinate and a target image sequence corresponding to the target recognition result, and obtaining a historical position sequence and a target motion feature of the target fish and inertial measurement unit data of the intelligent fishing system; carrying out filtering processing based on the carrier pose data, the inertial measurement unit data, the historical position sequence and the target motion characteristics, and determining a target positioning result and a target prediction trajectory result of the target fish; and based on the target identification result, the target positioning result and the target prediction trajectory result, a harpoon launching device is controlled to release a harpoon for fishing operation, so that the fishing accuracy is improved.
Owner:SHENZHEN LINGYING INTELLIGENT TECH CO LTD

Stichopus japonicus trapping device for artificial fish reef area

The utility model relates to an artificial fish reef stichopus japonicus proliferation catching technology, in particular to a stichopus japonicus trapping device for an artificial fish reef area. The device adopts a net cage structure, a net cage frame is made of corrosion-resistant metal profiles or PE profiles, soft nylon nettings are fixed on the net cage frame to form the bottom of the net cage and the periphery of the cage body, and movable doors which are movably connected and can be opened and closed are arranged on the periphery of the cage body of the net cage, so that the stichopus japonicus in an artificial fish reef area can enter the cage body. According to the arrangement form and scale of an artificial fish reef area, fixed-point pile arrangement and throwing of the stichopus japonicus catching device are carried out, the stichopus japonicus catching device can be independently used and can be arranged in rows for use, arrangement is convenient, use is flexible, and the stichopus japonicus catching device is suitable for being used in various different artificial fish reef construction sea areas.
Owner:DALIAN HANGJIA MARITIME SERVICE CO LTD

Oyster cage flipping system

Systems and methods for flipping floating oyster cages are disclosed. The system includes a support structure that when in a deployed position, the second end is submerged in water and the first end remains above water, a carriage configured to travel along the support structure and to engage with a floating cage, and a lifting device configured to move the carriage. The carriage includes a carriage guide moveably attached to the support structure, a lift arm attached to the carriage guide, a balance bar attached at the distal end of the lift arm, and a flipping apparatus. The flipping apparatus includes a carriage table coupled to the balance bar at the distal end of the lift arm such that the carriage table rotates about a rotation axis of the balance bar, where the carriage table includes a lifting frame adapted to allow water to flow through the lifting frame.
Owner:UNIVERSITY OF GEORGIA RESEARCH FOUNDATION INC

Isolation purse seine device for temporary cultivation of seafood products

The invention relates to the technical field of breeding industry, in particular to an isolation purse seine device for temporary breeding of seafood products, which comprises a floating frame, an octagonal hole is formed in the middle of the floating frame, a protective fence is arranged on the outer side of the top of the floating frame, and pull ropes are arranged at the bottom of the floating frame at intervals. The inner side of the top of the floating frame is provided with a winding assembly provided with a surrounding net. A rollable blocking net is arranged, and the whole blocking net is hung downwards under the water surface in a net bag mode and is stabilized by hanging a gravity block. When seafood capturing operation needs to be carried out, the octagonal rotating rollers are installed on the inner side of the upper edge of the surrounding net and connected through the elastic universal joints, the octagonal fixing frame can be clamped and fixed through the guide wheels, control is carried out through the top winding wheel, and therefore the surrounding net can be lifted and folded in a winding mode.
Owner:GANZHOU ANBEILONG TRADING CO LTD

Air-cooled fish gathering lamp and method for replacing fan of air-cooled fish gathering lamp

The invention belongs to the technical field of illumination, and particularly relates to an air-cooled fish gathering lamp and a fan replacement method of the air-cooled fish gathering lamp. The air-cooled fish gathering lamp comprises a substrate, an air-cooled fish gathering lamp body and a lamp cover, a light emitting unit mounted on the substrate; the heat dissipation piece comprises an installation part and a heat dissipation structure, the substrate is installed on the installation part, and the heat dissipation structure is located on the side, back on to the substrate, of the installation part; the middle plate is connected with the heat dissipation piece, a mounting wall is arranged on the middle plate, a mounting cavity is defined by the mounting wall, and a clamping structure is arranged on the mounting wall; the fan assembly comprises a shell and fan blades, the fan blades are mounted in the shell, and the shell comprises a first mounting plate; when the first mounting plate is located in the mounting cavity and located at the first angular position, the first mounting plate is located outside the clamping structure; when the first mounting plate is located in the mounting cavity and located at the second angular position, the first mounting plate is connected with the clamping structure in a clamped mode. According to the invention, the fan of the fish gathering lamp can be replaced by hands.
Owner:SHENZHEN YYC LED INTELLIGENT LIGHTING CO LTD

Deep sea aquaculture net cage

The invention discloses a deep sea aquaculture net cage which comprises a buoyancy pedal, a plurality of air bags are arranged at the bottom of the buoyancy pedal and used for providing buoyancy and adjusting the height of the buoyancy pedal; the buoyancy ring is arranged at the bottom of the buoyancy pedal, a fishing net is fixedly connected to the bottom of the buoyancy ring, a bottom net is fixedly connected to the bottom of the fishing net, and a screening net is arranged in the bottom net in a lifting mode and used for shortening the height of the fishing net and screening fishes; by arranging a cleaning ring and a knocking rod, the rope can be cleaned when the rope is wound, impurities such as salt and seaweed can be removed, sounds can be generated by knocking a bell disc, fish schools can be repelled, and the screening efficiency is improved; due to the reciprocating motion of the first sliding block and the second sliding block, ordered arrangement of the ropes is ensured, the knotting phenomenon is prevented, and the service life of the ropes is prolonged; by arranging the feed scattering assembly, uniform scattering of fish feed is achieved, waste is reduced, and the utilization rate of the feed is increased.
Owner:HESHAN ZEFENG BREEDING EQUIP CO LTD

Ratchet loaded speargun

PendingUS20250085078A1Spring gunsCompressed gas guns
A speargun having ratchet mounted to or integrated into the stock of the speargun to aids in the stretching of the elastic bands to load the speargun. The ratchet is connected to the elastic bands and allows a user to stretch the elastic bands to load the speargun incrementally instead of all at once. The ability to incrementally load the power using a ratchet not only makes it easier to load the speargun, but also enables the same speargun to be used for a variety of spearfishing applications where different amounts of force are optimal to propel the spear.
Owner:KIM CALEB JUYOUNG

Intelligent ecological fish culture system

The invention relates to the technical field of culture, and discloses an intelligent ecological fish culture system which comprises culture equipment, feeding equipment, water quality monitoring equipment, fish outlet equipment and a controller. The breeding equipment comprises a breeding pond, a water collecting pond, a water quality purifying, filtering and sterilizing device and an oxygen-enriched water production device. The feeding equipment comprises a feed tank, an air compressor and a feed conveying pipe; the water quality monitoring equipment comprises a dissolved oxygen sensor, an ammonia nitrogen sensor and the like; the fish outlet equipment comprises a fish suction pump and a fish outlet pipe; the controller is electrically connected with the breeding equipment, the feeding equipment, the water quality monitoring equipment and the fish discharging equipment, and the controller controls the oxygen-enriched water production device according to data detected by the dissolved oxygen sensor and the ammonia nitrogen sensor, so that the concentration of dissolved oxygen in a water body in the breeding pond is controlled within a set range. The aquaculture equipment, the feeding equipment and the fish discharging equipment are integrated, the water quality of the aquaculture pond can be monitored, the water quality can be purified and sterilized, and it is ensured that the water quality meets the requirement.
Owner:BEIJING YUANQING YIRANG ENVIRONMENTAL PROTECTION TECH CO LTD