CN113180018B - Auxiliary catching device for trawl and using method thereof - Google Patents
Auxiliary catching device for trawl and using method thereof Download PDFInfo
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- CN113180018B CN113180018B CN202110562831.8A CN202110562831A CN113180018B CN 113180018 B CN113180018 B CN 113180018B CN 202110562831 A CN202110562831 A CN 202110562831A CN 113180018 B CN113180018 B CN 113180018B
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 57
- 241000251468 Actinopterygii Species 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims description 74
- 241000270666 Testudines Species 0.000 claims description 26
- 241000143060 Americamysis bahia Species 0.000 claims description 23
- 241000238557 Decapoda Species 0.000 abstract description 11
- 241000270617 Cheloniidae Species 0.000 abstract description 7
- 241000270708 Testudinidae Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K75/00—Accessories for fishing nets; Details of fishing nets, e.g. structure
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K73/00—Drawn nets
- A01K73/02—Trawling nets
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Biodiversity & Conservation Biology (AREA)
- Marine Sciences & Fisheries (AREA)
- Mechanical Means For Catching Fish (AREA)
Abstract
The invention provides an auxiliary fishing device for a trawl and a using method thereof, belonging to the technical field of fishing equipment. The fish and shrimp separating device comprises a cylinder, a first side hole, a second side hole, a third side hole, a plurality of grid rods, a first rotating shaft, a driving mechanism, a plurality of rotating mechanisms and a guiding mechanism, wherein a separating cavity is formed in the cylinder, the first side hole, the second side hole and the third side hole are formed in the cylinder, the plurality of grid rods are sequentially and horizontally arranged on the second side hole from top to bottom, the first rotating shaft is coaxially and fixedly arranged in the separating cavity, the driving mechanism can drive the first rotating shaft to rotate clockwise by utilizing water flow, the plurality of rotating mechanisms and the plurality of grid rods are arranged in a staggered mode, when the first rotating shaft rotates clockwise, the rotating mechanisms can drive fish and shrimp in the separating cavity into the second side hole, and the guiding mechanism can guide the sea turtles in the separating cavity to the third side hole. The invention can ensure that the sea turtle entering the cylinder can escape quickly and protect marine organisms.
Description
Technical Field
The invention belongs to the technical field of fishing equipment, and relates to an auxiliary fishing device for a trawl and a using method thereof.
Background
The marine fishing refers to the fishing of various natural aquatic animals and plants, and the fishing of various natural seawater driven plants such as fish, shrimp, crab, shellfish, pearl, algae, etc. in the sea.
When the trawl is used for marine fishing, some protected marine organisms (such as turtles) often enter the trawl together, the turtles cannot escape after entering the trawl due to the closed rear end of the trawl, and finally the turtles are towed onto a ship along with the trawl, so that the turtles cannot breathe due to being in water for a long time, and finally the turtles die; in addition, the turtles entering the trawl can be wound by the trawl, so that the trawl is damaged, and the fishing yield is influenced.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an auxiliary catching device for a trawl and a using method thereof.
The purpose of the invention can be realized by the following technical scheme:
an auxiliary fishing apparatus for trawl comprising: the cylinder is vertically arranged, and a separation cavity is arranged in the cylinder;
the first side hole and the second side hole are symmetrically formed in the front side wall and the rear side wall of the cylinder respectively, and the third side hole is formed in the side wall of the cylinder between the first side hole and the second side hole;
the grid rods are sequentially and horizontally arranged on the second side holes from top to bottom along the vertical direction;
the first rotating shaft is coaxially and fixedly arranged in the separation cavity;
the driving mechanism is arranged on the cylinder and can drive the first rotating shaft to rotate clockwise by utilizing water flow;
the rotating mechanisms are sequentially arranged on the first rotating shaft along the length direction, the rotating mechanisms and the grating rods are arranged in a staggered mode, and when the first rotating shaft rotates clockwise, the rotating mechanisms can drive fishes and shrimps in the separation cavity into the second side holes;
and the guide mechanism is arranged in the third side hole and can guide the turtles in the separation cavity into the third side hole.
In the above-described auxiliary fishing device for a trawl, the driving mechanism includes:
the upper end of the first rotating shaft extends to the upper part of the cylinder, the first rotating plate is arranged on the first rotating shaft above the cylinder in a circumferential rotating mode, and the first rotating plate is bent towards the anticlockwise direction.
In the above-mentioned supplementary fishing device for trawl, the slewing mechanism includes a plurality of slewing structure, a plurality of the slewing structure sets up on first pivot along circumference, the slewing structure includes:
one end of the rotating rod is fixedly arranged on the first rotating shaft along the radial direction;
the middle part of the movable rod is hinged to one end, far away from the first rotating shaft, of the rotating rod through a hinged shaft;
one end of the reset spring is hinged to one end, close to the first rotating shaft, of the movable rod, the other end of the reset spring is hinged to the rotating rod, and in an initial state, the outer end of the movable rod extends out of the second side hole;
the drive structure, the drive structure sets up between movable rod and disengagement chamber, and when the movable rod rotated the disengagement chamber lateral wall opposite to the third side opening, the drive structure can make the movable rod rotate clockwise round the articulated shaft.
In the above auxiliary fishing device for trawl, a storage battery and a controller are provided on a top of the cylinder, and the driving structure includes:
the cross sections of the first electromagnets are arc-shaped, the first electromagnets are fixedly arranged on the side wall of the separation cavity opposite to the third side hole, and the first electromagnets are electrically connected with the storage battery through a controller;
the second electromagnets are in one-to-one correspondence with the movable rods, the second electromagnets are fixedly arranged at the outer ends of the corresponding movable rods, and the second electromagnets are electrically connected with the storage battery through the controller.
In foretell supplementary device of catching that trawl used, the top of second electro-magnet is rotated and is provided with the rotation post, the outside of rotating the post is equipped with the brush along circumference, and when the outer end of movable rod rotated the opposite separation intracavity of third side opening, the outer end of brush contacted with the lateral wall in separation chamber.
In the above-described auxiliary fishing apparatus for trawl, the guide mechanism includes:
the second rotating shaft is vertically and rotatably arranged on the outer side wall of the cylinder through two bottom plates, and the axial direction of the second rotating shaft is parallel to the axial direction of the first rotating shaft;
a plurality of guide structure, a plurality of guide structure sets gradually in the second pivot along length direction, a plurality of guide structure and a plurality of slewing mechanism crisscross the setting, guide structure has: the arc rods are arranged on the second rotating shaft along the circumferential direction;
the upper end of the second rotating shaft extends to the upper part of the cylinder, the second rotating blade plates are arranged on the second rotating shaft above the cylinder along the circumferential direction, and the second rotating blade plates are bent in the anticlockwise direction.
In the auxiliary fishing device for the trawl, the outer end of the arc-shaped rod is fixedly provided with the second permanent magnet, the side edge of the third side hole close to the second side hole is provided with the first permanent magnet, and the magnetic poles of the second permanent magnet and the first permanent magnet are opposite.
In the auxiliary fishing device for the trawl, a gear ring is coaxially arranged on a first rotating shaft between a first rotating blade plate and a cylinder, a generator is arranged on the upper side surface of the cylinder, a gear is fixedly arranged on an input shaft of the generator, the gear is meshed with the gear ring, and the generator is electrically connected with a storage battery.
In the auxiliary fishing device for the trawl, the grating rod is arc-shaped and is bent and protruded towards the separation cavity.
A method of using the auxiliary fishing apparatus for trawl according to claim 1, comprising the steps of:
s1, pushing the cylinder to move forward, and enabling the fish and the shrimp to enter the separation cavity through the first side hole;
s2, the driving mechanism drives the first rotating shaft to rotate clockwise by water flow, and the fish and the shrimps in the separation cavity are driven into the second side hole by the plurality of rotating mechanisms;
s3, the turtle entering the separation cavity is blocked by the grid rod, guided into the third side hole by the guide mechanism, and finally escapes from the cylinder through the third side hole.
Compared with the prior art, the invention has the following advantages:
1. the fishing boat is utilized to drag the cylinder to move forwards, fish and shrimps enter the separation cavity of the cylinder through the first side hole, the sea turtles can also enter the separation cavity, the driving mechanism utilizes water flow to drive the first rotating shaft to rotate clockwise, the rotating mechanisms drive the fish and shrimps entering the separation cavity into the second side hole, and then the guide mechanism guides the sea turtles in the separation cavity into the third side hole, so that the sea turtles escape from the cylinder, the death of the sea turtles is avoided, and marine organisms are protected;
2. when the cylinder moves forwards, water flow impacts the first rotating blade plate, and due to the fact that the first rotating blade plate is bent towards the anticlockwise direction, the water flow pushes the first rotating blade plate to rotate clockwise to drive the first rotating shaft to rotate clockwise, it is guaranteed that the rotating mechanism on the first rotating shaft can drive fishes and shrimps in the separation cavity into the second side hole, impact of the water flow is reasonably utilized, extra power does not need to be provided, and the rotary drum is green and environment-friendly;
3. the first rotating shaft is driven to rotate through the first rotating blade plate, so that the rotating rod on the first rotating shaft rotates along with the rotating rod, when the rotating rod rotates to the first side hole area, the included angle between the movable rod and the rotating rod is small, the outer end of the movable rod extends out of the first side hole, fishes and shrimps outside the first side hole are stirred into the separation cavity, when the rotating rod rotates to the second side hole area, the outer end of the movable rod extends out of the second side hole, the fishes and shrimps in the separation cavity are pushed out of the second side hole, and the fishing efficiency of the fishes and shrimps is improved; in addition, when the rotating rod rotates to the separation cavity between the first side hole and the second side hole, the movable rod rotates clockwise around the hinge shaft under the action of the driving structure, the included angle between the movable rod and the rotating rod is increased, the outer end of the movable rod is far away from the side wall of the separation cavity, and the phenomenon that the rotating rod is influenced by the fact that fishes and shrimps are clamped between the movable rod and the side wall of the separation cavity is avoided;
4. when the rotating rod rotates to the side wall of the separation cavity between the first side hole and the second side hole, the first electromagnet and the second electromagnet are started simultaneously, so that the magnetic poles of the first electromagnet and the second electromagnet are the same, a repulsive force is generated, the second electromagnet is pushed to move towards the first rotating shaft direction, the movable rod is driven to rotate clockwise around the hinge shaft, the outer end of the movable rod is far away from the side wall of the separation cavity, fish and shrimp are prevented from being clamped between the movable rod and the side wall of the separation cavity, and the structure is simple;
5. when the rotating rod rotates to the side wall of the separation cavity between the first side hole and the second side hole, the gap between the outer end of the movable rod and the side wall of the separation cavity is large, the brush on the rotating column can reduce the gap, small fishes and shrimps are prevented from being left in the gap, and the fishing yield is improved;
6. when the cylinder moves forwards, the water flow pushes the second rotating blade plate to rotate clockwise to drive the second rotating shaft to rotate clockwise, so that the arc-shaped rods rotate, the turtles between the two rotating rods and the movable rod are guided to the third side holes, the turtles are enabled to quickly escape from the cylinder, and the escape efficiency is improved;
7. because the magnetic poles of the second permanent magnet and the first permanent magnet are opposite, attraction is generated, when the arc-shaped rod on the second rotating shaft rotates to be gradually close to the first permanent magnet on the third side hole, the first permanent magnet attracts the second permanent magnet, the rotating speed of the arc-shaped rod is increased, and the escape efficiency of the turtle is improved;
8. when water flow impacts the first rotating blade plate to drive the first rotating shaft to rotate, the gear ring rotates along with the first rotating blade plate, the generator is driven by the gear to generate electricity, and then electric energy is stored in the storage battery and is used for the first electromagnet and the second electromagnet, so that energy recovery and reutilization are realized, and the environment is protected;
9. because the grating rods are bent towards the separation cavity, when the rotating rod rotates to the second side hole area, the fishes and shrimps in the separation cavity are extruded by the grating rods and quickly pass through gaps among the grating rods; in addition, under the guide effect of grid pole, the chelonian of separation intracavity is close to the direction of first pivot gradually, and the arc pole of being convenient for leads the chelonian to third side opening department, simple structure.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken at B-B of FIG. 1;
fig. 4 is a cross-sectional view at C-C in fig. 2.
In the figure, 1, a network port; 2. a cylinder; 21. a first side hole; 22. a second side hole; 221. a grid rod; 23. a separation chamber; 24. a first electromagnet; 25. a third side hole; 251. a first permanent magnet; 26. a generator; 261. a gear; 27. a storage battery; 28. a controller; 3. a mesh bag; 4. a first rotating shaft; 41. a first vane plate; 42. a ring gear; 5. rotating the rod; 51. a movable rod; 511. hinging shafts; 52. a second electromagnet; 53. rotating the column; 531. a brush; 54. a return spring; 55. a rotating shaft; 6. a second rotating shaft; 61. a base plate; 62. an arc-shaped rod; 63. a second permanent magnet; 64. a second rotating blade plate.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 4, an auxiliary fishing device for a trawl comprises a net mouth 1 and a net bag 3, and the auxiliary fishing device comprises a cylinder 2, a first side hole 21, a second side hole 22, a third side hole 25, a plurality of grid rods 221, a first rotating shaft 4, a driving mechanism, a plurality of rotating mechanisms and a guiding mechanism.
The cylinder 2 is vertically arranged, and a separation cavity 23 is arranged in the cylinder 2.
A plurality of the grating rods 221 are horizontally arranged on the second side hole 22 from top to bottom in sequence along the vertical direction.
The first rotating shaft 4 is coaxially and fixedly arranged in the separation cavity 23.
The driving mechanism is arranged on the cylinder 2 and can drive the first rotating shaft 4 to rotate clockwise by utilizing water flow.
A plurality of slewing mechanism sets gradually on first pivot 4 along length direction, a plurality of slewing mechanism and the crisscross setting of a plurality of grid pole 221, when first pivot 4 clockwise turning, slewing mechanism can drive the fish shrimp in the separation chamber 23 to the second side hole 22 in.
The guide mechanism is arranged in the third side hole 25, and the guide mechanism can guide the turtles in the separation cavity 23 to the third side hole 25.
Utilize the fishing boat to drag drum 2 and move forward, the fish shrimp enters into the disengagement chamber 23 of drum 2 through first side opening 21, the tortoise also can follow and enter into disengagement chamber 23, utilize rivers to drive first pivot 4 clockwise rotation through actuating mechanism, a plurality of slewing mechanism drives the fish shrimp that gets into in disengagement chamber 23 to second side opening 22 in, rethread guiding mechanism leads to third side opening 25 in with the tortoise in disengagement chamber 23, make the tortoise escape drum 2, avoid the tortoise to die, marine organism has been protected.
In particular, the drive mechanism comprises a number of first rotor plates 41.
The upper end of the first rotating shaft 4 extends to the upper part of the cylinder 2, a plurality of first rotating vane plates 41 are arranged on the first rotating shaft 4 above the cylinder 2 in a circumferential rotating mode, and the first rotating vane plates 41 are bent in the anticlockwise direction.
When drum 2 moves forward, rivers impact first rotor plate 41, because first rotor plate 41 is crooked to anticlockwise, rivers promote first rotor plate 41 clockwise, drive first pivot 4 clockwise rotations, ensure that slewing mechanism on the first pivot 4 can drive the fish and shrimp in the separation chamber 23 to second side hole 22 in, the impact of rational utilization rivers need not to provide extra power, green.
Specifically, slewing mechanism includes a plurality of rotating-structure, a plurality of rotating-structure sets up on first pivot 4 along circumference, rotating-structure includes dwang 5, movable rod 51, reset spring 54 and drive structure.
One end of the turning rod 5 is fixed on the first turning shaft 4 along the radial direction.
The middle portion of the movable lever 51 is hinged to one end of the rotating lever 5 away from the first rotating shaft 4 through a hinge shaft 511.
One end of the return spring 54 is hinged to one end of the movable rod 51 close to the first rotating shaft 4, the other end of the return spring 54 is hinged to the rotating rod 5 through the rotating shaft 55, and in an initial state, the outer end of the movable rod 51 extends out of the second side hole 22.
The driving structure is provided between the movable lever 51 and the separation chamber 23, and enables the movable lever 51 to rotate clockwise about the hinge shaft 511 when the movable lever 51 is rotated to the side wall of the separation chamber 23 opposite to the third side hole 25.
The first rotating shaft 4 is driven to rotate through the first rotating blade plate 41, so that the rotating rod 5 on the first rotating shaft 4 rotates, when the rotating rod 5 rotates to the area of the first side hole 21, the included angle between the movable rod 51 and the rotating rod 5 is smaller, the outer end of the movable rod 51 extends out of the first side hole 21, fishes and shrimps outside the first side hole 21 are shifted into the separation cavity 23, when the rotating rod 5 rotates to the area of the second side hole 22, the outer end of the movable rod 51 extends out of the second side hole 22, fishes and shrimps in the separation cavity 23 are pushed out of the second side hole 22, and the fishing efficiency of fishes and shrimps is improved; in addition, when dwang 5 rotates the separation chamber 23 between first side hole 21 and the second side hole 22, under the effect of drive structure, make movable rod 51 rotate clockwise around articulated shaft 511, the contained angle increase between movable rod 51 and the dwang 5, the lateral wall of separation chamber 23 is kept away from to the outer end of movable rod 51, avoids the fish and shrimp to be blocked between the lateral wall of movable rod 51 and separation chamber 23, influences dwang 5 and rotates.
Specifically, the top of the cylinder 2 is provided with a storage battery 27 and a controller 28, and the driving structure comprises a first electromagnet 24 and a plurality of second electromagnets 52.
The cross section of the first electromagnet 24 is arc-shaped, the first electromagnet 24 is fixedly arranged on the side wall of the separation cavity 23 opposite to the third side hole 25, and the first electromagnet 24 is electrically connected with the storage battery 27 through the controller 28.
The plurality of second electromagnets 52 correspond to the plurality of movable rods 51 one by one, the second electromagnets 52 are fixedly arranged at the outer ends of the corresponding movable rods 51, and the second electromagnets 52 are electrically connected with the storage battery 27 through the controller 28.
When the rotating rod 5 rotates to the side wall of the separation cavity 23 between the first side hole 21 and the second side hole 22, the first electromagnet 24 and the second electromagnet 52 are simultaneously started, the magnetic poles of the first electromagnet 24 and the second electromagnet 52 are the same, a repulsive force is generated, the second electromagnet 52 is pushed to move towards the first rotating shaft 4, the movable rod 51 is driven to rotate clockwise around the hinge shaft 511, the outer end of the movable rod 51 is far away from the side wall of the separation cavity 23, and fish and shrimp are prevented from being clamped between the movable rod 51 and the side wall of the separation cavity 23.
Specifically, the top of the second electromagnet 52 is rotatably provided with a rotating column 53, the outer side of the rotating column 53 is circumferentially provided with a brush 531, and when the outer end of the movable rod 51 rotates into the separation chamber 23 opposite to the third side hole 25, the outer end of the brush 531 contacts with the side wall of the separation chamber 23.
When dwang 5 rotates the separation chamber 23 lateral wall between first side opening 21 and the second side opening 22, the clearance between the outer end of movable rod 51 and the separation chamber 23 lateral wall is great, rotates brush 531 on the post 53 and can reduce this clearance, avoids less fishes and shrimps to leave over in the clearance, improves and catches output.
Specifically, the guiding mechanism includes the second rotating shaft 6, a plurality of guiding structures, and a plurality of second rotating blades 64.
The second rotating shaft 6 is vertically and rotatably arranged on the outer side wall of the cylinder 2 through two bottom plates 61, and the axial direction of the second rotating shaft 6 is parallel to the axial direction of the first rotating shaft 4.
A plurality of guide structure sets gradually on second pivot 6, a plurality of along length direction guide structure and a plurality of slewing mechanism crisscross the setting, guide structure has: a plurality of arc-shaped rods 62, a plurality of arc-shaped rods 62 are arranged on the second rotating shaft 6 along the circumferential direction.
The upper end of the second rotating shaft 6 extends to the upper part of the cylinder 2, the end part of the second rotating shaft is subjected to spherical surface treatment, a plurality of second rotating vane plates 64 are arranged on the second rotating shaft 6 positioned above the cylinder 2 along the circumferential direction, and the second rotating vane plates 64 are bent in the anticlockwise direction.
When the cylinder 2 moves forward, the water flow pushes the second rotating blade plate 64 to rotate clockwise, so as to drive the second rotating shaft 6 to rotate clockwise, so that the arc-shaped rod 62 rotates, and the turtle between the two rotating rods 5 and the movable rod 51 is guided to the third side hole 25, so that the turtle can quickly escape from the cylinder 2, and the escape efficiency is improved.
Specifically, the outer end of the arc-shaped rod 62 is fixedly provided with a second permanent magnet 63, a side of the third side hole 25 close to the second side hole 22 is provided with a first permanent magnet 251, and the magnetic poles of the second permanent magnet 63 and the first permanent magnet 251 are opposite.
Because the magnetic poles of the second permanent magnet 63 are opposite to the magnetic poles of the first permanent magnet 251, attraction is generated, when the arc-shaped rod 62 on the second rotating shaft 6 rotates to be gradually close to the first permanent magnet 251 on the third side hole 25, the first permanent magnet 251 attracts the second permanent magnet 63, the rotating speed of the arc-shaped rod 62 is increased, and the escape efficiency of the sea turtle is improved.
Specifically, a gear ring 42 is coaxially arranged on the first rotating shaft 4 between the first rotating blade plate 41 and the cylinder 2, a generator 26 is arranged on the upper side surface of the cylinder 2, a gear 261 is fixedly arranged on an input shaft of the generator 26, the gear 261 and the gear ring 42 are meshed and connected, and the generator 26 is electrically connected with the storage battery 27 through a rectifier.
When water flow impact first rotor plate 41 drives first pivot 4 and rotates, ring gear 42 then rotates, drives generator 26 through gear 261 and carries out the generator, then stores the electric energy in battery 27 for first electro-magnet 24 and second electro-magnet 52 realize energy recuperation and recycle, green.
Specifically, the grill rods 221 are arc-shaped, and the grill rods 221 are bent and protruded into the separation chamber 23.
Because the grid rods 221 are bent towards the inside of the separation cavity 23, when the rotating rod 5 rotates to the area of the second side hole 22, the fishes and shrimps in the separation cavity 23 are extruded by the grid rods 221, quickly pass through the gaps between the grid rods 221 and enter the second mesh bag 3; in addition, under the guiding action of the grille rod 221, the turtle in the separation cavity 23 gradually approaches to the first rotating shaft 4, so that the arc-shaped rod 62 guides the turtle to the third side hole 25, and the structure is simple.
A use method of the auxiliary fishing device for the trawl comprises the following steps:
s1, pushing the cylinder 2 to move forwards, and enabling fish and shrimps to enter the separation cavity 23 through the first side hole 21;
s2, the driving mechanism drives the first rotating shaft 4 to rotate clockwise by water flow, and the fish and the shrimps in the separation cavity 23 are driven into the second side hole 22 by the plurality of rotating mechanisms;
s3, the turtle entering the separation chamber 23 is stopped by the grating rod 221, guided into the third side hole 25 by the guiding mechanism, and finally escapes from the cylinder 2 through the third side hole 25.
After fishes and shrimps enter the separation cavity 23 through the first side holes 21, the first rotating shaft 4 is driven to rotate by the impact of water flow, the fishes and shrimps in the separation cavity 23 are driven to pass through the second side holes 22 to enter the net bag 3 through the plurality of rotating mechanisms, the turtles are blocked by the blocking grid rods 221, the fishes and the turtles are quickly separated, the turtles in the separation cavity 23 are guided to the third side holes 25 through the guide mechanisms to quickly escape from the cylinders 2, the turtles are prevented from entering the net bag 3 and are choked or caught, the turtles are effectively protected while the fishing operation, and the operation is simple.
In the description of this patent, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing the patent and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered limiting of the patent.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (8)
1. An auxiliary fishing device for a trawl, comprising: the device comprises a cylinder (2), wherein the cylinder (2) is vertically arranged, and a separation cavity (23) is arranged in the cylinder (2);
the device comprises a first side hole (21), a second side hole (22) and a third side hole (25), wherein the first side hole (21) and the second side hole (22) are symmetrically formed in the front side wall and the rear side wall of the cylinder (2) respectively, and the third side hole (25) is formed in the side wall of the cylinder (2) between the first side hole (21) and the second side hole (22);
the grid rods (221) are sequentially and horizontally arranged on the second side holes (22) from top to bottom along the vertical direction;
the first rotating shaft (4), the said first rotating shaft (4) is fixed in the separation chamber (23) coaxially;
the driving mechanism is arranged on the cylinder (2) and can drive the first rotating shaft (4) to rotate clockwise by utilizing water flow;
the rotating mechanisms are sequentially arranged on the first rotating shaft (4) along the length direction, the rotating mechanisms and the grid rods (221) are arranged in a staggered mode, and when the first rotating shaft (4) rotates clockwise, the rotating mechanisms can drive fishes and shrimps in the separation cavity (23) into the second side holes (22);
the guide mechanism is arranged in the third side hole (25), and can guide the turtles in the separation cavity (23) into the third side hole (25);
the guide mechanism includes:
the second rotating shaft (6) is vertically and rotatably arranged on the outer side wall of the cylinder (2) through two bottom plates (61), and the axial direction of the second rotating shaft (6) is parallel to the axial direction of the first rotating shaft (4);
a plurality of guide structure, a plurality of guide structure sets gradually on second pivot (6), a plurality of along length direction guide structure and a plurality of slewing mechanism crisscross the setting, guide structure has: the arc-shaped rods (62) are circumferentially arranged on the second rotating shaft (6), a second permanent magnet (63) is fixedly arranged at the outer end of each arc-shaped rod (62), a first permanent magnet (251) is arranged on one side edge of the third side hole (25) close to the second side hole (22), and the magnetic poles of the second permanent magnet (63) and the first permanent magnet (251) are opposite;
a plurality of second rotating vane plate (64), the upper end of second pivot (6) extends to the top of drum (2), a plurality of second rotating vane plate (64) sets up on second pivot (6) that are located drum (2) top along circumference, second rotating vane plate (64) are crooked to the counter-clockwise.
2. An auxiliary fishing apparatus for trawl as claimed in claim 1, wherein the drive mechanism comprises:
a plurality of first rotor plate (41), the upper end of first pivot (4) extends to the top of drum (2), a plurality of first rotor plate (41) set up on first pivot (4) that are located drum (2) top along circumferential direction, first rotor plate (41) are crooked to the counter-clockwise.
3. An auxiliary catching device for trawl according to claim 2, wherein the rotating mechanism comprises a plurality of rotating structures, a plurality of the rotating structures are circumferentially arranged on the first rotating shaft (4), the rotating structure comprises:
one end of the rotating rod (5) is fixedly arranged on the first rotating shaft (4) along the radial direction;
the middle part of the movable rod (51) is hinged to one end, away from the first rotating shaft (4), of the rotating rod (5) through a hinged shaft (511);
one end of the return spring (54) is hinged to one end, close to the first rotating shaft (4), of the movable rod (51), the other end of the return spring (54) is hinged to the rotating rod (5), and in an initial state, the outer end of the movable rod (51) extends out of the second side hole (22);
a driving structure provided between the movable bar (51) and the separation chamber (23), the driving structure enabling the movable bar (51) to rotate clockwise around the hinge shaft (511) when the movable bar (51) rotates to the side wall of the separation chamber (23) opposite to the third side hole (25).
4. An auxiliary fishing device for trawl according to claim 3, characterized in that the top of the cylinder (2) is provided with an accumulator (27) and a controller (28), the driving structure comprising:
the cross sections of the first electromagnets (24) are arc-shaped, the first electromagnets (24) are fixedly arranged on the side wall of the separation cavity (23) opposite to the third side hole (25), and the first electromagnets (24) are electrically connected with a storage battery (27) through a controller (28);
the plurality of second electromagnets (52) are in one-to-one correspondence with the plurality of movable rods (51), the second electromagnets (52) are fixedly arranged at the outer ends of the corresponding movable rods (51), and the second electromagnets (52) are electrically connected with the storage battery (27) through the controller (28).
5. An auxiliary fishing device for trawl according to claim 4, wherein the top of the second electromagnet (52) is rotatably provided with a rotating post (53), the outer side of the rotating post (53) is provided with a brush (531) along the circumferential direction, when the outer end of the movable rod (51) is rotated into the separation chamber (23) opposite to the third side hole (25), the outer end of the brush (531) contacts with the side wall of the separation chamber (23).
6. An auxiliary fishing device for trawl according to claim 5, characterized in that a gear ring (42) is coaxially arranged on the first rotating shaft (4) between the first rotating vane plate (41) and the cylinder (2), a generator (26) is arranged on the upper side surface of the cylinder (2), a gear (261) is fixedly arranged on the input shaft of the generator (26), the gear (261) is engaged with the gear ring (42), and the generator (26) is electrically connected with the storage battery (27).
7. An auxiliary fishing device for trawl according to claim 6, characterised in that the grating bars (221) are arc-shaped, the grating bars (221) being curved and convex into the separation chamber (23).
8. A method of using the auxiliary fishing device for trawl of claim 1, comprising the steps of:
s1, pushing the cylinder (2) to move forwards, and enabling fish and shrimps to enter the separation cavity (23) through the first side hole (21);
s2, the driving mechanism drives the first rotating shaft (4) to rotate clockwise by water flow, and fish and shrimps in the separation cavity (23) are driven into the second side hole (22) through the plurality of rotating mechanisms;
s3, the turtle entering the separation cavity (23) is blocked by the grid rod (221), the turtle in the separation cavity (23) is guided into the third side hole (25) through the guide mechanism, and finally the turtle escapes from the cylinder (2) through the third side hole (25).
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| CN202110562831.8A CN113180018B (en) | 2021-05-24 | 2021-05-24 | Auxiliary catching device for trawl and using method thereof |
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| CN202110562831.8A CN113180018B (en) | 2021-05-24 | 2021-05-24 | Auxiliary catching device for trawl and using method thereof |
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| CN113180018B true CN113180018B (en) | 2022-07-08 |
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