A fish guiding device capable of avoiding obstacles under river

Abstract

The present application relates to the technical field of netting. A fish guiding device capable of avoiding obstacles in river bottom, comprising a main cable, the main cable being connected with floats along the length direction; the main cable comprising pulling parts on the left and right sides and a guiding function connecting part in the center; the guiding function connecting part being connected with longitudinal drag force cables arranged from left to right, the bottom of the longitudinal drag force cables being connected with metal chains for dragging friction on the river bottom; further comprising replaceable guiding nets, the guiding nets being connected with the longitudinal drag force cables; the guiding nets comprising transverse cables and longitudinal cables arranged in a crisscross manner; the bottom of the guiding nets and the top of the metal chains being spaced apart by 2-4 meters. The present application realizes different guiding requirements by replacing different guiding nets.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of net laying, in particular to a fish driving device. BACKGROUND

[0002] Net laying is a tool that is laid in water in advance, waiting, luring or driving economic fish or test fish into the net, and then taking out the fish on the water surface. In order to improve the fishing rate of net laying, it is often necessary to concentrate the economic fish or test fish distributed in the water area to the net laying place through the fish driving device. Sometimes, the bottom of the river and its tributaries is called the river bottom by people in the field. For the river bottom obstacle water area, it is impossible to drive fish by using tools such as trawl nets and purse seines, otherwise serious fishing accidents such as net damage will occur. How to drive economic fish or test fish in the river bottom obstacle water area is one of the most difficult problems that cannot be solved in the field at present. When using tools such as purse seines and trawl nets to drive fish in the river bottom obstacle water area, the net will be hooked on the river bottom obstacle, resulting in serious fishing accidents such as net breaking and fish escaping, and hanging net. This brings serious problems to net laying operation. At present, people have no way to drive fish in the river bottom obstacle water area, which is a world problem in the field of production. At present, there is a lack of fish driving devices that can avoid the river bottom obstacle in the field, and it is urgent to solve the problem by inventing a fish driving device that can avoid the river bottom obstacle. SUMMARY

[0003] In view of the problems in the prior art, the present application provides a fish driving device that can avoid the river bottom obstacle, which solves at least one of the above technical problems.

[0004] The technical scheme of the present application is: a fish driving device that can avoid the river bottom obstacle, characterized in that it comprises a main rope, the main rope is connected with a float along the length direction, the main rope is made of PET / PO fiber material, the nominal diameter range is 20-40 mm, the lay distance range is 211-245 mm, 12 strands of PET / PO fiber cable material are obtained to serve as the main rope of the fish driving device.

[0005] The main rope comprises pulling parts on the left and right sides and a driving function connecting part in the center.

[0006] The connection part is connected with longitudinal dragging force cables arranged from left to right, and the bottom of the longitudinal dragging force cables is connected with metal chains for dragging friction at the bottom of the river; the longitudinal dragging force cables are made of UHMWPE-F fiber material, the nominal diameter is 20 mm, the rope yarn twist range is 90-140 twists per meter, and 12 round stock structure UHMWPE-F fiber cable materials are obtained as the longitudinal dragging force cables; the total length of the metal chains and the longitudinal dragging force cables is not less than 2 times of the water depth, so as to ensure the dragging friction of the metal chains with the bottom of the river; and the floating and sinking ratio between the total buoyancy of the main cable rope and the total weight of the metal chains ranges from 0.2 to 0.8.

[0007] The application further comprises replaceable driving nets connected with the longitudinal dragging force cables.

[0008] The driving nets comprise longitudinal cables and transverse cables arranged in a longitudinal and transverse interlaced manner.

[0009] The bottom of the driving nets is spaced apart from the top of the metal chains by a distance of 2-4 meters.

[0010] The application can slowly wind the nets by winches or manually or by ships, so as to drive economic fish or test fish living in water layers. When the main cable rope is wound, the longitudinal dragging force cables drive fish living in different water layers, and the metal chains can pass through obstacles of different heights, and rub against and touch rocks, concrete and the like at the bottom of the river to make sound, so as to scare and drive the bottom fish by sound.

[0011] The application can realize different driving requirements by replacing different driving nets.

[0012] Further preferably, the length of the longitudinal dragging force cables is 15-20 meters, and the length of the metal chains is 2-3 meters. Wear-resistant materials such as Ni, Mo, Cu or Si are added in the metal chain material processing process, which can increase the service life of the metal chains by more than 15%.

[0013] Further preferably, the nominal diameter of the metal chains is 18-34 mm.

[0014] The weight of the metal chains with a nominal diameter of 18 mm is 6.6 kg / m, and the weight of the metal chains with a nominal diameter of 34 mm is 22.7 kg / m.

[0015] Further preferably, the driving nets are arranged adjacent to the metal chains.

[0016] The application facilitates the driving of economic fish or test fish living in the bottom.

[0017] Alternatively, the driving nets are arranged between the main cable rope and the metal chains.

[0018] It is convenient to realize full coverage and driving in different water depth areas.

[0019] Further preferably, the number of the transverse cables is 3, 12 or 8-10.

[0020] Further preferably, the distance between the adjacent transverse cables on the driving net is 1.25 meters, 5 meters or 2.5 meters.

[0021] Further preferably, when the distance between the adjacent two longitudinal traction cables is greater than 2.5 meters;

[0022] When the distance between the adjacent longitudinal cables is less than the distance between the adjacent longitudinal traction cables, the bottom of the longitudinal cable between the adjacent traction cables is connected with an auxiliary metal chain.

[0023] Alternatively, the distance between the adjacent two longitudinal traction cables is 1.25 meters.

[0024] Further preferably, the main cable is connected with an optical fiber;

[0025] The longitudinal traction cable is connected with a copper bell.

[0026] A fish driving device capable of avoiding obstacles at the bottom of a river, characterized in that it comprises a main cable, wherein the main cable is connected with a float along the length direction;

[0027] The main cable comprises pulling parts on the left and right sides and a driving function connecting part in the center;

[0028] The driving function connecting part is connected with longitudinal traction cables arranged from left to right, and the bottom of the longitudinal traction cable is connected with a metal chain for dragging friction at the bottom of the river; and the device further comprises a replaceable driving net connected with the longitudinal traction cable.

[0029] The driving net comprises transverse cables and longitudinal cables arranged in a longitudinal and transverse manner.

[0030] The distance between the bottom of the driving net and the top of the metal chain is 2-4 meters.

[0031] Beneficial effects: in the actual production activities or scientific research experiments and other specific applications, people collect the main cable of the fish driving device, on the one hand, the longitudinal drag force cable drives different habitat water layer of economic fish or test fish, at the same time, the metal chain can cross the different height obstacles, and the friction, touch sound with the river bottom rock, concrete, at the same time, the longitudinal drag force cable connected with the copper bell also makes sound, which scares the bottom fish through the above sound. The driving net in the fish driving device can drive the fish in the water layer; the floating ball on the driving net can control the water layer position of the driving net, so as to smoothly cross the obstacles. The present application can effectively cross the obstacles, and the effect of driving fish is very good, which is improved by more than 60% compared with the traditional method. The driving effect of the present application on fish is very obvious. The present application creates PET / PO fiber cable material with round stock structure, UHMWPE-F fiber cable material with round stock structure, special driving net, copper bell, optical fiber main cable, special fish driving device structure, etc., which is the first innovation in the world to complete a fish driving device that can avoid river bottom obstacles, which not only effectively solves the problem of fish driving under the river bottom obstacles, but also solves the problem of traditional fish driving method under the river bottom obstacles. The fish driving device of the present application is different from other fields, so the fish driving device of other fields is not suitable for this field, therefore, the technical effect of the present application is very significant, and the comprehensive benefit is obvious. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a structure schematic view of the first scheme of the embodiment 1 of the present application;

[0033] Figure 2 It is a structure schematic view of the second scheme of the embodiment 1 of the present application;

[0034] Figure 3 It is a structure schematic view of the third scheme of the embodiment 1 of the present application;

[0035] Figure 4 It is a structure schematic view of the fourth scheme of the embodiment 1 of the present application;

[0036] Figure 5 It is a structure schematic view of the fifth scheme of the embodiment 1 of the present application;

[0037] Figure 6 It is a structure schematic view of the embodiment 2 of the present application;

[0038] Figure 7 It is a partial structure schematic view of the embodiment 3 of the present application.

[0039] In the figure: 1 is the main cable, 2 is the longitudinal drag force cable, 3 is the metal chain, 4 is the horizontal cable, 5 is the longitudinal cable, 6 is the float, 7 is the metal connecting line. DETAILED DESCRIPTION

[0040] Referring to Figures 1 to 5 , specific embodiment 1, a fish chasing device capable of avoiding obstacles at the bottom of a river, comprising a main cable, the main cable 1 being connected with a float 6 along the length direction. The main cable 1 is made of PET / PO fiber material, with a nominal diameter ranging from 20 mm to 40 mm and a lay length of 223 mm, to obtain 12 strands of PET / PO fiber cable material in round strand structure, which is used as the main cable 1 of the fish chasing device. The main cable 1 comprises pulling parts on the left and right sides and a chasing function connecting part in the center. The chasing function connecting part is connected with longitudinal drag force cables 2 arranged from left to right. The longitudinal drag force cables 2 are made of UHMWPE-F fiber material, with a nominal diameter of 20 mm and a rope yarn lay length ranging from 90 to 140 lay / m, to obtain 12 strands of UHMWPE-F fiber cable material in round strand structure, which is used as the longitudinal drag force cables 2. The total length of the metal chain 3 and the longitudinal drag force cables 2 is not less than 2 times the water depth, to ensure the friction of the metal chain with the river bottom. The buoyancy ratio between the total buoyancy of the float on the main cable and the total weight of the metal chain ranges from 0.2 to 0.8. The bottom of the longitudinal drag force cables 2 is connected with the metal chain 3 for friction on the river bottom. It also comprises a replaceable chasing net connected with the longitudinal drag force cables. The chasing net comprises transverse cables 4 and longitudinal cables arranged in a crisscross manner. There is a gap of 2-4 meters between the bottom of the chasing net and the top of the metal chain. The invention is slowly reeled to the net laying area by winch or manual or ship, etc., to chase the test fish living in the bottom layer. When the main cable 1 is reeled, on the one hand, the longitudinal drag force cables 2 chase fish living in different water layers, and at the same time, the metal chain 3 can pass over obstacles of different heights while rubbing and touching the river rocks, concrete, etc., to make sound, which scares the bottom fish through sound.

[0041] The longitudinal cables of the chasing net are connected with the longitudinal drag force cables 2. It is convenient to replace according to different fish, and the colors of different chasing nets are different. For example, when chasing silver carp in fresh water, orange yellow chasing net can be used; when chasing salmon and trout in clear water, red chasing net can be used, etc. The chasing net is connected with the longitudinal drag force cables 2 through a connecting line. Alternatively, the chasing net is connected with the longitudinal drag force cables 2 through a lock. The longitudinal drag force cables 2 are provided with a through hole passing through the lock.

[0042] The length of the longitudinal drag force cables 2 is 15-20 meters, and the length of the metal chain 3 is 2 meters.

[0043] The main cable 1 is made of PET / PO fiber material, with a nominal diameter ranging from 20 mm to 40 mm and a lay length of 223 mm, to obtain 12 strands of PET / PO fiber cable material in round strand structure, which is used as the main cable 1 of the fish chasing device.

[0044] The main cable 1 is made of 12-strand PET / PO fiber cable material with a diameter ranging from 20 mm to 40 mm (the breaking strength of the 12-strand PET / PO fiber cable material with a nominal diameter of 40 mm is 15 t), and the length of the main cable 1 is 400 m (the length of the main cable 1 in the middle of the longitudinal tow force cable 2 and the float area is 320 m, and the length of the main cable 1 in the area where the longitudinal tow force cable 2 is not installed at both ends is 40 m).

[0045] The metal chain 3 is made of a metal chain 3 with a chain diameter ranging from 18 mm to 34 mm. The weight of the metal chain 3 with a nominal diameter of 18 mm is 6.6 kg / m, and the weight of the metal chain with a nominal diameter of 34 mm is 22.7 kg / m. A progressive net is arranged between the main cable 1 and the metal chain 3. It is convenient to realize full coverage of progressive driving in different water depth areas. The distance between two adjacent longitudinal tow force cables 2 is 1.25 m. A total of 257 longitudinal tow force cables 2 are installed.

[0046] It can be seen from Figure 1 , scheme one:

[0047] The number of transverse cables 4 is 3, and the distance is 5 m.

[0048] The transverse cable 4 is made of 4-strand PET / PO fiber cable material with a diameter of 4 mm (breaking strength of 185 kg), and the length of each transverse cable 4 is 320 m (actual length after knotting). The longitudinal tow force cable 2 is made of 4-strand PET / PO fiber cable material with a diameter of 4 mm (breaking strength of 185 kg), and the length of each longitudinal tow force cable 2 is 18 m (actual length after knotting).

[0049] It can be seen from Figure 2 , scheme two:

[0050] The number of transverse cables 4 is 8.

[0051] Four transverse cables 4 are arranged in the upper part of the progressive net, and the distance is 5 m.

[0052] Four transverse cables 4 are arranged in the lower part of the progressive net, and the distance is 1.25 m.

[0053] The distance between the longitudinal steel ropes of the progressive net matches the distance between the longitudinal tow force cables 2, and is 1.25 m.

[0054] The upper middle part forms a sparse mesh net, and the lower part forms a dense mesh net; to build a sparse upper middle part and dense lower part drag type test fish by fish device. Through winch or manual or ship, etc. Slowly reeling in the area where the net is laid, the upper middle part sparse mesh net, the lower part dense mesh net, the main cable 1 and the metal chain 3 together drive the test fish living in the whole water layer. On the one hand, the net and the metal chain 3 drive the fish in the whole water layer, at the same time, the metal chain 3 rubs and touches the river bottom rock, concrete, etc. to make sound, which scares the bottom fish through sound.

[0055] Referring to Figure 3 , scheme three:

[0056] The number of transverse cables 4 is 9.

[0057] The upper part of the driving net is provided with six transverse cables 4, and the interval is 2.5 meters;

[0058] The lower part of the driving net is provided with three transverse cables 4, and the interval is 1.25 meters.

[0059] The interval of the longitudinal steel rope of the driving net matches the interval of the longitudinal drag force cable 2, and is 1.25 meters.

[0060] The upper part forms a sparse mesh net; the lower part forms a dense mesh net. Through winch or manual or ship, etc. Slowly reeling in the area where the net is laid, the upper part sparse mesh net, the lower part dense mesh net, the main cable 1 and the metal chain 3 together drive the test fish living in the whole water layer. On the one hand, the net and the metal chain 3 drive the fish in the whole water layer, at the same time, the metal chain 3 rubs and touches the river bottom rock, concrete, etc. to make sound, which scares the bottom fish through sound.

[0061] Referring to Figure 4 , scheme four:

[0062] The number of transverse cables 4 is 10.

[0063] The upper part of the driving net is provided with two transverse cables 4, and the interval is 2.5 meters;

[0064] The middle and lower part of the driving net is provided with eight transverse cables 4, and the interval is 1.25 meters.

[0065] The interval of the longitudinal steel rope of the driving net matches the interval of the longitudinal drag force cable 2, and is 1.25 meters.

[0066] The upper part forms a sparse mesh net, and the middle lower part forms a dense mesh net. The test fish in the whole water layer is driven by the upper sparse mesh net, the middle lower dense mesh net, the main cable 1 and the metal chain 3 through the slow retraction and dragging of the winch or manual or ship to the laying area. On the one hand, the fish in the whole water layer is driven by the mesh and the metal chain 3, and on the other hand, the metal chain 3 rubs and touches the river bottom rock, concrete and other objects to make sound, which scares the bottom fish.

[0067] Referring to Figure 5 , scheme five:

[0068] The number of transverse cables 4 is 12, and the distance between adjacent ones is 1.25 meters. In actual processing, people can directly use a diameter of 4 mm polyethylene rope to weave a single-line single-dead-knot mesh with a mesh size of 2.5 meters to save processing cost.

[0069] Referring to Figure 6 , specific embodiment 2, on the basis of specific embodiment 1, the driving net is arranged adjacent to the metal chain.

[0070] When the distance between the two adjacent longitudinal dragging force cables is greater than 2.5 meters, the distance between the adjacent longitudinal cables 5 of the driving net is less than the distance between the adjacent longitudinal dragging force cables, and the bottom of the longitudinal cable between the adjacent dragging force cables 5 is connected with an auxiliary metal chain.

[0071] The distance between the two adjacent longitudinal dragging force cables 2 is 5 meters. The transverse cable 4 is provided with three, and the distance between the adjacent transverse cables 4 is 1.25 meters. The transverse cable 4 is made of 4 strands of PET / PO fiber cable material with a diameter of 4 mm (breaking strength of 185 kg).

[0072] The longitudinal dragging force cable is made of 4 strands of PET / PO fiber cable material with a diameter of 4 mm (breaking strength of 185 kg).

[0073] The length of the longitudinal cable 5 is 5.5 meters (the actual length after knotting).

[0074] The distance between the main cable and the uppermost transverse cable is 12.5 meters (the actual length after knotting).

[0075] Beneficial effects: the present inventors, on the basis of long-term hard work, after countless hard work, finally created a fish chasing device that can avoid obstacles at the bottom of the river; the present invention creates PET / PO fiber cable material with round strand structure, UHMWPE-F fiber cable material with round strand structure, special fish chasing net, copper bell, optical fiber main cable connected, special fish chasing device structure, etc. for the first time in the world. Innovative completion of a fish chasing device that can avoid obstacles at the bottom of the river, effectively solves the problem of chasing fish under the obstacles at the bottom of the river, and solves the problem of traditional fish chasing method under the net or net hooking at the bottom of the river. The fish chasing device that can avoid obstacles at the bottom of the river is different from other fields, so the fish chasing device in other fields is not suitable for this field, therefore, the technical effect of the present invention is obvious, and the comprehensive benefit is very significant.

[0076] Reference Figure 7 , specific embodiment 4, on the basis of specific embodiment 1, adjacent metal chains 3 are connected by metal connecting lines 7, and the metal connecting lines 7 are provided with breakable points, and the outer diameter of the breakable points is smaller than the outer diameter of the metal connecting lines 7. It is convenient to know the height range of the water bottom obstacles on the driving path after single driving. It is convenient to know whether the length of the anchor chain and the buoyancy of the floating body need to be adjusted during the later driving process. At least three metal connecting lines 7 are longitudinally arranged. It is convenient to know whether there are water bottom obstacles in different height ranges. The metal connecting line is a spiral metal connecting line. It can be that the metal connecting line comprises adjacent spiral metal lines, and the spiral metal lines are provided with breakable points. The practical application effect of the present invention shows that the present invention realizes efficient driving of fish, shrimp and crab in complex water area through technical innovation, effectively solves the problem of efficient driving of fish, shrimp and crab in complex water area, and the fishing efficiency of the net can be improved by more than 20%. It has high technical content, strong innovation, and very obvious comprehensive benefit.

[0077] The above is only the preferred embodiment of the present application, and it should be noted that for ordinary skilled persons in the technical field, without departing from the principles of the present application, a number of improvements and refinements can be made, which should also be considered as the protection scope of the present application.

Claims

1. A fish-chasing device capable of avoiding obstacles on the riverbed, characterized in that, It includes a main rope with floats connected along its length; the main rope is made of PET / PO fiber material with a nominal diameter of 20 mm-40 mm and a twist of 211-245 mm, resulting in a 12-strand round PET / PO fiber cable material, which is used as the main rope of the fish chasing device. The main rope includes a pulling section on the left and right sides and a driving function connecting section in the center. The drive-through functional connection is connected to a longitudinal towing force line arranged from left to right. The bottom of the longitudinal towing force line is connected to a metal chain for dragging and friction against the riverbed. The longitudinal towing force line is made of UHMWPE-F fiber material with a nominal diameter of 20 mm and a twist range of 90-140 twists / meter, resulting in a 12-strand round UHMWPE-F fiber cable material, which serves as the longitudinal towing force line. The total length of the metal chain and the longitudinal towing force line is not less than twice the water depth to ensure dragging and friction between the metal chain and the riverbed. The buoyancy ratio between the total buoyancy of the floats on the main rope and the total weight of the metal chain ranges from 0.2 to 0.

8. It also includes a replaceable trailing mesh, which is connected to the longitudinal drag force line; The drive net includes horizontal and vertical ropes arranged in a crisscross pattern. There is a gap of 2-4 meters between the bottom of the drive net and the top of the metal chain; Adjacent metal chains are connected by metal connecting lines, which are equipped with easy-break points. The outer diameter of the easy-break points is smaller than the outer diameter of the rest of the metal connecting lines. At least three metal connecting wires are arranged vertically.

2. The fish-chasing device capable of avoiding obstacles on the riverbed according to claim 1, characterized in that: The longitudinal drag force line has a length of 15-20 meters, and the metal chain has a length of 2-3 meters.

3. The fish-chasing device that can avoid obstacles on the riverbed according to claim 1, characterized in that: The nominal diameter of the metal chain is 18 mm to 34 mm; The weight of a metal chain with a nominal diameter of 18 mm is 6.6 kg / m; the weight of a metal chain with a nominal diameter of 34 mm is 22.7 kg / m.

4. The fish-chasing device capable of avoiding obstacles on the riverbed according to claim 1, characterized in that: The drive net is located adjacent to the metal chain.

5. A fish-chasing device capable of avoiding obstacles on the riverbed according to claim 1, characterized in that: The drive net is positioned between the main rope and the metal chain.

6. A fish-chasing device capable of avoiding obstacles on the riverbed according to claim 1, characterized in that: The number of horizontal ropes is 3, 12, or 8-10.

7. A fish-chasing device capable of avoiding obstacles on the riverbed according to claim 1, characterized in that: The spacing between adjacent transverse ropes on the drive net is 1.25 meters, 5 meters, or 2.5 meters.

8. A fish-chasing device capable of avoiding obstacles on the riverbed according to claim 1, characterized in that: When the distance between two adjacent longitudinal towing cables is greater than 2.5 meters; When the spacing between adjacent longitudinal ropes of the drive net is less than the spacing between adjacent longitudinal towing ropes, an auxiliary metal chain is connected to the bottom of the longitudinal rope located between the adjacent towing ropes.

9. A fish-chasing device capable of avoiding obstacles on the riverbed according to claim 1, characterized in that: An optical fiber is connected to the main rope; A copper bell is connected to the longitudinal drag force line.

10. A fish-chasing device capable of avoiding obstacles on the riverbed, characterized in that, It includes a main rope, on which floats are connected along the length direction; The main rope includes a pulling section on the left and right sides and a driving function connecting section in the center. The drive function connection is connected to a longitudinal towing force line arranged from left to right, and the bottom of the longitudinal towing force line is connected to a metal chain for dragging and friction on the riverbed; it also includes a replaceable drive net, which is connected to the longitudinal towing force line. The drive net includes horizontal and vertical ropes arranged in a crisscross pattern. There is a gap of 2-4 meters between the bottom of the drive net and the top of the metal chain; Adjacent metal chains are connected by metal connecting lines, which are equipped with easy-break points. The outer diameter of the easy-break points is smaller than the outer diameter of the rest of the metal connecting lines. At least three metal connecting wires are arranged vertically.

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