1881 results about "Fishing net" patented technology

The invention discloses a method for preparing a trimeric high-strength and high-toughness energy-saving fishing net, which is implemented by carrying out synthesis on polyethylene (1), polypropylene (2), polyamides (3), Nano silicon dioxide (4), polyethylene wax (5), a coupling/bulking agent (6), a UV (ultraviolet) resistant agent 173 (7), a coloring agent (8) and white mineral oil (9) accordingto five steps (namely, a step A, a step B, a step C, a step D and a step E).

The invention discloses a video-supporting remotely-controlled fishing biomimetic robotic fish with dual joints to which the power is supplied by coordinately swinging dual tail fins in an opening and closing way and coordinately swinging dual pectoral fins. The biomimetic robotic fish has the characteristics of high speed, flexible turning, high water resistance, high stability, support of fishing, long working time and support of video. The key technology of the biomimetic robotic fish is that: a gear shaft handle is used for pushing a U-shaped shaft arm actuating device, so that the swinging of the tail fins and the dual pectoral fins has the characteristics of continuousness, rapidness, stableness, high efficiency, strong force and the like; a bolt is used for driving a gear arm running device by rotating, so that fish body steering, closing of a fish mouth and receiving and releasing of a fish net can be realized, and rapidness, accuracy and firmness are realized; a dual-layer circular tube nipple joint is sleeved on an anti-water-seepage and inner cavity anti-water-seepage alarm device of a dual-layer rubber tube, so that a mechanism in the abdomen of the fish is ensured; an air pump and an air bag are combined skillfully and applied flexibility, so that the head of robotic fish rises upwards during floating and extends downwards during sinking, a biomimetic function is realized, and the flexibility and diving speed can be increased; and video and the remote control are integrated, so that the function of fishing real fishes with a biomimetic fish is realized.

The invention provides graphene quantum dot reinforced polyarmide fiber and a preparation method thereof. The mechanical property of PA6 fiber is improved through the molecular template effect of graphene quantum dots and the staggered effect between graphene quantum dots and a PA6 texture structure; the high-strength and high-modulus PA6-GQD compound fiber with tensile strength of 0.72-1.05 GPa and initial modulus of 8-11 GPa is prepared through a traditional mature PA6 melt spinning process. Compared with traditional high-strength and high-modulus PA6 fiber, the graphene quantum dot reinforced polyarmide fiber has the advantages that the mechanical performance is more excellent, the technological process is simple, environment pollution is small, cost is low, the fiber is suitable for being produced on a large scale, an existing PA6 melt spinning process device does not need to be changed, the prepared PA6-GQD fiber has excellent mechanical performance, and the fiber can be used for the fields of tire curtain wires, industrial cloth, clothes, fishing nets and military war industry.

An automatically closing drop fishing net is provided for commercial fishing operations. The drop net assembly includes an upper float ring, a lower weight ring, and a net formed in a generally tubular configuration. The upper end of the net is attached to the float ring and the lower end of the net is attached to the weight ring. The drop net assembly has several torque lines that extend from locations on the float ring on the outside of the net to locations on the weight ring that are initially angularly offset at least one hundred eighty degrees relative to their points of attachment to the float ring. The torque lines are shorter than the vertical length that the net would assume in a stretched condition with the float ring buoyed upon the surface of a body of sea water and with the weight ring suspended therebeneath and held only by the structure of the net. As gravity pulls the weight ring downwardly from the float ring in the water, tension is exerted on the torque lines. This tension causes the weight ring to rotate relative to the float ring above it. The twisting of the weight ring also twists the net, thereby closing the lower portion of the net and changing its shape from a generally cylindrical configuration to a configuration of an upper inverted cone and a lower, upright cone. Fish are entrapped within the upper, inverted conical portion of the drop net assembly once it has been deployed.

The invention discloses an antibacterial anti-alga color master batch dedicated to a fishing net and a preparation method thereof. The color master batch disclosed by the invention comprises the following raw materials in weight part: 35-75 parts of carrier resin, 10-48 parts of pigment, 10-20 parts of antibacterial agent, and 0.5-3 parts of compatilizer. The preparation method for the color master batch, disclosed by the invention, is realized through the following steps: adding the pigment, the antibacterial agent and a processing agent into a grinding miller as per the raw material ratio for grinding and refining, adding the carrier resin and the compatilizer together into a high-speed mixer for uniform mixing, and finally adding the mixed material into a double-screw extruder for mixing and extruding. According to the invention, the antibacterial agent is added into the color master batch dedicated to the fishing net, and the compatilizer is added to enhance the compatibility of the prescription components, so that the antibacterial anti-alga color master batch dedicated to the fishing net can be prepared; and moreover, the color master batch has antibacterial and anti-alga functions, is convenient to add and use, and has the advantages of low toxicity, high efficiency and long antifouling period.

The invention discloses polyester fiber which is modified by anti-hydrolytic reagent, which comprises anti-hydrolytic reagent carbodiimide 0.1-1% and polyester fiber 99-99.9%. The modified polyester fiber is prepared through adding anti-hydrolytic reagent carbodiimide in spinning screw bolt and mixing with high viscosity polyester welding flux to do composite spinning. The physical-mechanical properties of polyester fiber which is modified by anti-hydrolytic reagent of the invention completely achieves processing behavior of polyester fiber in common industry, ageing resistance under the environment of acid or high moisture high temperature is greatly improved, and the application field of the invention can be extended to various field of marine fishing net, tire cord yarn and the like. Difficulty of process technology of modified fiber is not complex, the line for manufacturing technique of the traditional chemical fiber need not to change, the invention is applied to commercial manufacture, cost of modified polyester fiber compared with other fiber (such as nylon) which is used at present is greatly reduced, and economic benefit is distinctive.

The invention relates to the technical field of preparation methods for polyester filaments, particularly to a preparation method for super fine denier polyester filaments. The preparation method adopts super bright PET chips as raw materials to implement the production through the steps of pre-crystallization, drying, extrusion, filtering, distribution of spinning box bodies, filament splitting by a metering pump, filament spraying, lateral air blowing, winding and packing of finished products. According to the preparation method adopted by the invention, finally finished fibers have the performances of high strength, low elongation, low heat shrinkage and the like; the breaking strength of the fibers is larger than 7.0 cN/dtex; the breaking elongation of the fibers is less than 14%; the boiling water shrinkage of the fibers is less than 1.8%; and the dry heat shrinkage is less than 4.5%. And at the same time, the preparation method has the characteristics of short production flow, high spinning speed, fewer broken filaments, fewer broken ends, low production cost and the like, and is not only used for top grade sewing threads, embroidery threads and fishing nets, but also heavily applied in various vehicle airbags, base camp tent fabrics and various industries adopting high strength fibers as auxiliary materials or reinforcing materials.

The invention provides a fish catching device of a fishing boat and belongs to the field of fishing gears. The fish catching device of the fishing boat comprises a net cage, a net inlet, a frame, fish baits, net ropes, a floating ball, a lifting rope a, a pulley a, a supporting frame, a lifting rope b, a pulley b, a winch b, a column, a winch a, a hanging ring and a hook. The net cage is a cylinder, consists of a frame and a fishing net and is provided with the net inlet, wherein the net inlet is formed in the net cage and is tapered, and a fish outlet is formed in the bottom of the net cage. One hook is arranged at one end of the lifting rope a, the other end of the lifting rope a is connected to the winch a, and the middle of the lifting rope a penetrates the pulley a. The pulley a is installed on the supporting frame, the supporting frame is installed on the fishing boat through a hinge, and the winch a and the winch b are installed on the fishing boat. One end of the lifting rope b is fixed on the supporting frame, the other end of the lifting rope b is fixed on the winch b, the middle of the lifting rope b penetrates the pulley b, the pulley b is installed on the column, and the column is fixed on the fishing boat. One end of each of the three net ropes is fixed on the net cage frame, the other end of each of the three net ropes is fixed on the floating ball, the hanging ring is arranged on the floating ball, and the hook on the lifting rope a hooks the hanging ring.

The invention discloses a nylon-reinforced fishing net which comprises the following raw materials in parts by weight: 90-100 parts of ultra-high molecular weight polyethylene, 3-4 parts of nylon PA66, 0.1-0.2 part of N-2-(aminoethyl)-3-aminopropyltrimethoxysilane, 0.1-0.2 part of N,N-dimethyldodecylamine and 1-2 parts of a modified plasticizer. The fishing net produced by the invention is high in tensile strength, strong in toughness and weather resistance, and high in elongation at break in filaments, and added nylon enhances all physical properties of a finished product and improves the toughness.

A marine seismic exploration method and system comprised of continuous recording, self-contained ocean bottom pods characterized by low profile casings. An external bumper is provided to promote ocean bottom coupling and prevent fishing net entrapment. Pods are tethered together with flexible, non-rigid, non-conducting cable used to control pod deployment. Pods are deployed and retrieved from a boat deck configured to have a storage system and a handling system to attach pods to cable on-the-fly. The storage system is a juke box configuration of slots wherein individual pods are randomly stored in the slots to permit data extraction, charging, testing and synchronizing without opening the pods. A pod may include an inertial navigation system to determine ocean floor location and a rubidium clock for timing. The system includes mathematical gimballing. The cable may include shear couplings designed to automatically shear apart if a certain level of cable tension is reached.

A fishing chair mounts directly in the sandy bottom of a relatively shallow surf. A vacuum pump pulls a base pole down into the sand to form a sturdy foundation, even in rough surf conditions. A seat assembly is mounted at the upper end of the base pole. The chair mount may be fabricated from composite materials or plastic, such as PVC, to prevent corrosion. The chair mount is also provided with a foot rest or step that is braced against the base pole. The surf fishing chair is positioned above the waves under normal surf conditions, but also withstands larger wave impacts while safely supporting a fisherman in the seat structure. Other features include adjustable fishing pole holders, a tackle box, a bait box, a bait cutting surface, a fish net holder, and a fish stringer and basket.

The invention discloses a polythene fishing net with wear resistance and energy saving and relates to the filed of fishing gear manufacturing. The wear resistance of the fishing net needs to be improved. The invention adopts the preparation technology of the polythene fishing net and is characterized in that ultra-high molecular weight silicane and high molecular weight polyolefin are mixed with master batches of polyvinyl resin in proportion, wear resistant master batches which are blended in proportion and the polyvinyl resin are blended according to weight proportion, the weight of the wear resistant master batches is 2 percent to 5 percent of the weight of the polythene, the mixture is melt-extruded by an extruding machine, the fiber which is melt-extruded is put into a flume to be cooled and pre-drafted, and the cooled monofilament fiber is drafted. The drafting temperature is 90 to 105 DEG C, the drafting multiple is 11 to 13 times, the setting temperature of the drafted monofilament is 90 to 120 DEG C, the set monofilament fiber is coiled by the wrapping tension of 200 plus or minus 30cN and the coiling speed of 120 to 150 meters per min, and the monofilament is made into net wire of the twist number of 36 to 216 twists per meter and is woven into the wear resistant fishing net with the mesh size of 10mm to 1200mm.

An antifouling coating composition substantially not containing cuprous oxide and organotins, characterized by comprising (A) a metal-containing copolymer obtained by copolymerization of a polymerizable unsaturated monomer (a1) containing a metal and an unsaturated monomer (a2) capable of radical polymerization containing no metals; (B) 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one; and (C) a metal pyrithione compound. There are provided an antifouling coating composition, antifouling coating film and, covered with the antifouling coating film, marine vessel, underwater structure and fishing gear or fishing net, which can reduce burdens on the environment, exhibiting excellent antifouling performance, and which excel in not only uniform wasting of coating film but also capability of maintaining antifouling performance of coating film for a prolonged period of time.

The invention relates to a method for cultivating Anguilla marmorata. The method is applicable to the fishery. The invention discloses a method for improving the cultivation survival rate and growth speed of the Anguilla marmorata, namely a 'rest bed' is arranged for the Anguilla marmorata on one side of a pond, a layer of fishing net covers the 'rest bed', a food platform is positioned on one side of the 'rest bed', a sunshade shed is built above the 'rest bed', and a sunshade net covers the sunshade shed and is about 30cm away from the water surface. The area of the 'rest bed' can be 30 to 300 square meters, and 8 to 10 ten thousand fish is usually cultivated in each 300 square meters. A lifting device is arranged on the 'rest bed' so as to moderately adjust the height of the 'rest bed'; therefore, the aim that the 'rest bed' can be about 1 meter away from the water surface when the temperature of the water surface is overhigh or overlow in summer is fulfilled. In the method, the 'rest bed' which can be lifted is provided for the Anguilla marmorata during cultivation, so that the diseases can be reduced; and the survival rate is greatly improved, the growth speed is improved, the bait coefficient and cultivation cost are reduced, the quality of aquatic products is ensured, the environmental pollution is reduced, and the cultivation efficiency can also be improved.

The invention provides an aqueous fishing net antifouling paint and a preparation method thereof. The antifouling paint comprises a film-forming resin, an antifouling filling material, a defoaming agent, a dispersing agent, an anti-sedimentation agent and water. The preparation method comprises the following steps: weighing various components in a proportion; preparing an aqueous solution from the defoaming agent, the dispersing agent and the anti-sedimentation agent; mixing and grinding the antifouling filling material which is subjected to pretreatment together with a dispersing agent solution with the anti-sedimentation solution and partial defoaming agent solution, standing for 12 hours, and then adding the rest defoaming agent solution and evenly mixing; and finally, adding water to regulate viscosity. The aqueous fishing net antifouling paint provided by the invention has the advantages of low toxicity, high efficiency, strong stability, adjustable color, high cost performance, good adhesion and good antifouling property and is convenient to use, and the preparation method is simple and easy to operate.

The invention discloses a machinable offshore enteromorpha salvage ship. The machinable offshore enteromorpha salvage ship comprises a ship body, and an enteromorpha collecting device, an enteromorpha dewatering device, an enteromorpha drying device and an enteromorpha smashing device are sequentially installed on the salvage ship and are each provided with a driving motor. By means of the machinable offshore enteromorpha salvage ship, a salvage fishing net is replaced with the mechanical enteromorpha collecting device, the manpower is reduced, and the salvage efficiency is improved. Dewatering, drying, smashing and other operations are carried out on enteromorpha salvaged to the ship so as to form enteromorpha powder low in impurity content, the enteromorpha powder can be used as animal feed, and abundant economic benefits are obtained.

The invention relates to the technical field of riverway improvement, and discloses a garbage cleaning-away device for riverway cleaning. The garbage cleaning-away device for riverway cleaning comprises a hull. The left side of an inner cavity of the hull is fixedly connected with a supporting plate, the right side of the supporting plate is fixedly connected with the right side of the inner cavity of the hull, the top of the supporting plate is fixedly connected with a motor base, a motor is fixedly installed on the top of the motor base, the top of the supporting plate is fixedly connected with a fixing plate located in front of the motor base, and an output shaft of the motor is fixedly connected with a first rotary rod penetrating through and stretching out of the front face of the fixing plate. According to the garbage cleaning-away device for riverway cleaning, through the arrangement of the motor, a second rotary rod, connecting rods, fishing rods, fishing nets and supporting rods, after the motor works normally, the connecting rods are driven to correspondingly move, the fishing nets clean away garbage on the water surface when the fishing rods move, the effect of rapidly cleaning the garbage on the water surface is achieved, and therefore the effect of automatic cleaning is achieved.

The invention discloses an anti-algae anti-aging fishing net prepared from the following components: polystyrene, polyethylene fibers, nylon fibers, MBS resin, an epoxy resin adhesive film, ethylene glycol dimethacrylate, a calcium carbonate powder, an attapulgite powder, dibutyl phthalate and calcium stearate. The prepared fishing net has simple processing technology; ultraviolet intermittent irradiation treatment is carried out in a process of polyethylene fiber treatment, and the prepared fishing net can be allowed to have extremely strong performance of preventing algae attachment; the nylon fibers have the defects that the nylon fibers have poor optical rotation resistance, are prone to yellowing and have the strength decreased when illuminated for a long time by the sun outdoor, so a hexamethylene diamine and maleic anhydride mixture is adopted for treating the nylon fibers, the problems are solved, and the anti-aging ability of the prepared fishing net is greatly improved; and through addition of the treated attapulgite powder, mechanical properties of the fishing net are improved, and the toughness is enhanced.

The invention relates to a copolymerized flame-retardant polyamide 66 fiber and a preparation method thereof, especially to a method for preparing the flame-retardant polyamide 66 fiber by preparing a block flame-retardant polyamide 66 copolymer through polymerization of a phosphorus-containing reactive flame retardant, then pelletizing and drying the polyamide 66 copolymer and then carrying out melt spinning. The method is characterized in that the flame-retardant reacts with diamine or dihydric alcohol to produce a flame-retardant prepolymer, then the flame retardant prepolymer reacts with polyamide 66 prepolymer so as to obtain the flame-retardant polyamide 66 copolymer, and finally, the flame-retardant polyamide 66 copolymer is subjected to melt spinning so as to prepare the copolymerized flame-retardant polyamide 66 fiber. The copolymerized flame-retardant polyamide 66 fiber prepared in the invention has excellent mechanical properties, good flame retardation durability and a limit oxygen index of more than 30%. The flame-retardant polyamide 66 fiber can be used for fabricating civil filaments like clothes, carpets, curtains, cloth for furniture, etc. and fabricating industrial filaments like cord fabrics, transport belts, fishing nets, cables, military fabrics, etc.