CN110367211B

CN110367211B - Submarine trawl net

Info

Publication number: CN110367211B
Application number: CN201910808503.4A
Authority: CN
Inventors: 臧迎亮; 刘莉莉; 唐伟尧
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2021-08-10
Anticipated expiration: 2039-08-29
Also published as: CN110367211A

Abstract

The invention provides a submarine trawl net. The subsea trawl net, comprising: a square-shaped support frame; the net component is clamped on the right side of the square-shaped support frame and comprises a bag net. The submarine trawl net provided by the invention has the advantages that the net mouth is ensured to be always in an open state by arranging the square-back-shaped support frame, the crabs and the like hidden in submarine sand can be driven out by arranging the plurality of material picking devices on the front side of the square-back-shaped support frame and enter the sac net, so that the crabs and the like are easier to capture, one side of the sac net is far away from the seabed by arranging the first roller and the second roller, and the side close to the seabed is provided with the baffle for protection, so that the contact between the sac net and reef is greatly reduced, the damage condition of the sac net is reduced, the service life of the sac net is prolonged, the net can be moved on the seabed more conveniently by the first roller and the second roller, the containing of the sac net is convenient after the fishing is finished, the operation is simple, and the disassembly of the sac net is simple.

Description

Submarine trawl net

Technical Field

The invention relates to the field of trawling, in particular to a submarine trawling net tool.

Background

The trawl is also called a trailer. The trawl utilizes the movement of the ship to drag the fishing gear to move forward in the sea bottom or seawater, and forces the fishing gear to enter the net bag through fishing objects such as fishes, shrimps, crabs and the like in the water area, thereby achieving the aim of fishing. The bag-shaped fishing gear is towed by the power of the fishing boat, fishes, shrimps, crabs, shellfishes or mollusks are forcibly towed into the net in the water area where the fishing gear passes by, so that the purpose of fishing production is achieved, the towing operation is flexible, the adaptability is strong, and the production efficiency is higher. Modern trawl fishing gear can be used for fishing not only fish, but also cephalopods, shellfish and crustaceans; not only can be used for catching objects whose habitat is only several meters and dozens of meters in depth, but also can be used for catching deep sea species whose habitat is several kilometers in depth.

The trawl is mainly used for fishing fishes or shrimps, crabs, shellfish and the like in seawater collection, and is used for fishing trawl for shrimps, crabs and shellfish, when fishing, the trawl can be in contact with the bottom of the sea bottom, the trawl is easy to be in contact with reef and the like on the sea bottom, the trawl is damaged, and the trawl is inconvenient to store.

Therefore, there is a need to provide a submarine trawl net that solves the above problems.

Disclosure of Invention

The invention provides a submarine trawl net, which solves the problem that when shrimps, crabs and shellfish are caught by the trawl net, the trawl net can contact with the bottom of the seabed, and the trawl net is easy to contact with reefs and the like on the seabed, so that the trawl net is damaged.

In order to solve the above technical problems, the present invention provides a submarine trawl net, comprising: a square-shaped support frame;

the net component is clamped on the right side of the square-clip-shaped support frame and comprises a bag net;

the material picking device is fixed on the left side of the square-clip-shaped support frame;

the baffle is fixed at the bottom of the square-back support frame, first mounting blocks are fixedly connected to two sides of the bottom of the baffle, and a first roller is arranged between two opposite sides of the first mounting blocks;

the tail end connecting block is fixedly connected to one side of the bag net;

the strip-shaped supporting block is fixedly arranged between the baffle and the tail end connecting block through a screw;

the second roller is fixed on the right side of the bottom of the strip-shaped supporting block through a second mounting block;

the two limiting assemblies are respectively arranged on two sides of the baffle;

and the two fixing assemblies are respectively fixed on two sides of the tail end connecting block.

Preferably, the left side fixedly connected with front end fixed chain of bag net, one side fixed connection of front end fixed chain has a plurality of joint pieces.

Preferably, two moving blocks are slidably connected between two sides of the inner wall of the clamping block, an elastic piece is fixedly connected between the two moving blocks, a clamping block is fixedly connected to one side of each of the two moving blocks, which is opposite to the other side of each of the two moving blocks, and one side of each clamping block is an arc surface.

Preferably, one side of the square-shaped support frame is provided with a square-shaped groove matched with the front end fixed chain, one side of the inner surface of the square-shaped groove is provided with a plurality of through holes matched with the clamping blocks, and one side of the inner surface of the square-shaped groove is bonded with a silica gel pad.

Preferably, when the bag net and the square-shaped support frame are installed, the front end fixing chain is located inside the square-shaped groove, the clamping block penetrates through the through hole and extends to one side of the square-shaped support frame, and the clamping block is located on one side of the square-shaped support frame.

Preferably, the number of the material pickers is multiple, and the material pickers are folded strip blocks.

Preferably, the limiting assembly comprises a limiting block, a limiting hole is formed in the limiting block, and one side of the inner surface of the limiting hole is communicated with a connecting hole.

Preferably, the fixed subassembly includes the fixed block, the front fixedly connected with of fixed block rotates the piece, rotate the spacing axle of fixedly connected with on the piece, one side fixedly connected with dog on spacing axle surface.

Preferably, the aperture of the limiting hole is the same as the shaft diameter of the limiting shaft, and the size of the connecting hole is matched with that of the stop block.

Preferably, when the bottom ends of the first roller and the second roller are horizontally placed, the heights of two sides of the bag net are the same.

Compared with the related art, the submarine trawl net provided by the invention has the following beneficial effects:

the invention provides a submarine trawl net, which ensures that a net port is always in an open state and cannot be closed by arranging a square-back-shaped support frame, and a plurality of material pickers are arranged at the front side of the square-shaped support frame to catch crabs, shells, mollusks and the like hidden in seabed sand and enter the sac net to be easier to catch, and one side of the bag net is far away from the seabed by arranging the first roller and the second roller, and the side close to the seabed is provided with the baffle for protection, thereby greatly reducing the contact between the bag net and the reef, reducing the damage of the bag net, the service life of the bag net is prolonged, and the net can move on the seabed more conveniently when passing through the first roller and the second roller, and make things convenient for accomodating of bag net after fishing, and easy operation, the dismantlement of bag net is simple simultaneously, is convenient for repair or change the bag net.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a subsea trawl tool according to the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a right side view of FIG. 1;

FIG. 4 is a partial cross-sectional view of the square-shaped support frame shown in FIG. 1;

FIG. 5 is a cross-sectional view of the rotary member shown in FIG. 1;

FIG. 6 is an enlarged view of portion A of FIG. 3;

fig. 7 is an enlarged view of a portion B in fig. 3.

Reference numbers in the figures: 1. the utility model provides a return font support frame, 2, the baffle, 3, the net subassembly, 31, the bag net, 32, the fixed chain of front end, 33, the joint piece, 34, the movable block, 35, the elastic component, 36, the fixture block, 4, spacing subassembly, 41, the stopper, 42, spacing hole, 43, the connecting hole, 5, fixed subassembly, 51, the fixed block, 52, rotate the piece, 53, spacing axle, 54, the dog, 6, the bar-shaped supporting block, 7, pick up the glassware, 8, first installation piece, 9, first gyro wheel, 10, the second installation piece, 11, the second gyro wheel, 12, the tail end connecting block, 13, return font recess, 14, the silica gel pad, 15, the through-hole.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a subsea trawl tool according to the present invention; FIG. 2 is a top view of FIG. 1;

FIG. 3 is a right side view of FIG. 1; FIG. 4 is a partial cross-sectional view of the square-shaped support frame shown in FIG. 1; FIG. 5 is a cross-sectional view of the rotary member shown in FIG. 1; FIG. 6 is an enlarged view of portion A of FIG. 3; fig. 7 is an enlarged view of a portion B in fig. 3. A subsea trawl net, comprising: a support frame 1 shaped like a Chinese character 'hui';

the net component 3 is clamped on the right side of the square-back-shaped support frame 1, the net component 3 comprises a bag net 31, the whole bag net 31 is nearly conical, and the resistance of seawater can be reduced during fishing;

the material picking device 7 is fixed on the left side of the square-clip-shaped support frame 1, the material picking device 7 is supported by a metal material, a rubber sleeve is sleeved at the front end of the material picking device 7, and meanwhile, a waterproof and anticorrosive layer is coated on the surface of the material picking device 7;

the baffle 2 is fixed at the bottom of the square-back-shaped support frame 1, first mounting blocks 8 are fixedly connected to two sides of the bottom of the baffle 2, and a first roller 9 is arranged between two opposite sides of the first mounting blocks 8;

the tail end connecting block 12 is fixedly connected to one side of the bag net 31, one side of the tail end connecting block 12 is provided with a mounting groove, a connecting shaft is fixedly connected between two sides of the inner wall of the mounting groove, a plurality of round holes are formed in the connecting shaft, and the bag net 31 is connected with the round holes through net ropes;

the strip-shaped supporting block 6 is fixedly installed between the baffle plate 2 and the tail end connecting block 12 through screws, two screw holes are formed in the two sides of the baffle plate 2 and the tail end connecting block 12, and the strip-shaped supporting blocks 6 are respectively and fixedly installed on the front side and the rear side of the baffle plate 2 and the front side and the rear side of the tail end connecting block 12;

the second idler wheel 11 is fixed on the right side of the bottom of the strip-shaped supporting block 6 through a second mounting block 10, the first idler wheel 9 and the second idler wheel 11 comprise a main shaft, an outer wheel and a rubber sleeve, the outer wheel is sleeved on the main shaft, the rubber sleeve is sleeved on the outer wheel, the main shaft is preferably made of metal materials, the surface of the main shaft is coated with a waterproof and anticorrosive coating, and the outer wheel is preferably made of plastic materials;

the two limiting assemblies 4 are respectively arranged on two sides of the baffle 2;

the two fixing assemblies 5 are respectively fixed on two sides of the tail end connecting block 12.

The left side fixedly connected with front end fixed chain 32 of bag net 31, fixed chain 32 are the metal material, one side fixed connection of front end fixed chain 32 has connect a plurality of joint pieces 33, and the surface has waterproof, anticorrosive coating in the coating.

Two moving blocks 34 are connected between two sides of the inner wall of the clamping block 33 in a sliding mode, sliding blocks are arranged on two sides of each moving block 34, sliding grooves matched with each other are formed in two sides of the inner wall of the clamping block 33, an elastic piece 35 is fixedly connected between the two moving blocks 34, clamping blocks 36 are fixedly connected to the opposite sides of the two moving blocks 34, and one side of each clamping block 36 is an arc surface.

The utility model discloses a bag net 31, including back font support frame 1, back font recess 13, a plurality of through-holes 15 with joint piece 33 looks adaptation are seted up to one side of back font support frame 1 with front end fixed chain 32 looks adaptation, the one side of back font recess 13 internal surface is seted up a plurality of through-holes 15 with joint piece 33 looks adaptation, the silica gel pad 14 that has bonded to one side of back font recess 13 internal surface, and after the installation of bag net 31, silica gel pad 14 is in compression state.

When the bag net 31 and the square-shaped support frame 1 are installed, the front end fixing chain 32 is located inside the square-shaped groove 13, the clamping block 33 partially penetrates through the through hole 15 and extends to one side of the square-shaped support frame 1, and the clamping block 36 is located on one side of the square-shaped support frame 1.

The number of the material picking devices 7 is multiple, the number of the material picking devices 7 is specifically set according to the width of the sac net 31, the material picking devices 7 are folded strips, the folded strips are convenient, crabs, shellfish, mollusks and the like which are hidden in sand in the sea bottom are driven out of the sand and enter the sac net, and the crabs, the shellfish, the mollusks and the like are easier to catch.

The limiting component 4 comprises a limiting block 41, a limiting hole 42 is formed in the limiting block 41, and a connecting hole 43 is communicated with one side of the inner surface of the limiting hole 42.

Fixed subassembly 5 includes fixed block 51, fixed block 51's positive fixedly connected with rotates piece 52, rotates the piece including rotating, rotates the inside cylindrical hole that has seted up of piece, the inside swing joint in cylindrical hole has the disc, spacing axle 53's one end and disc fixed connection, the other end runs through and rotates piece 52 and extend to the outside that rotates piece 52, and runs through the department for clearance fit, and the week side bonding of disc has the block rubber, the block rubber increase and the friction of cylindricality downthehole wall, including when having external force, spacing axle 53 can not rotate at will, rotate the spacing axle 53 of fixedly connected with on the piece 52, one side fixedly connected with dog 54 on spacing axle 53 surface.

The aperture of the limiting hole 42 is the same as the shaft diameter of the limiting shaft 53, and the size of the connecting hole 43 is matched with that of the stop block 54.

The left and right sides of the square-shaped support frame 1 are provided with fixing holes, and the square-shaped support frame is fixed with a traction rope on a fishing boat through the fixing holes.

When the bottom ends of the first roller 9 and the second roller 11 are horizontally placed, the heights of the two sides of the bag net 31 are the same.

The working principle of the submarine trawl net provided by the invention is as follows:

when fishing, the net is put into the sea through the fixed connection of the mounting holes on the square-shaped support frame 1 and the hauling cable on the fishing boat, the net gradually falls into the sea bottom, the whole net is driven to move by the ship body, crabs, shellfish, mollusks and the like which are hidden in sand in the sea bottom can be driven out of the sand by the material picking device 7 at the front side of the square-shaped support frame 1 and enter the sac net 31 to be more easily caught, and the crabs, the shellfish, the mollusks and the like are driven to move out of the sand by the first roller 9 and the second roller 11, when the net is horizontally placed, the second roller 11 supports the sac net 31 to make the heights of the two ends of the sac net 31 the same, namely, one side of the bag net 31 close to the tail end connecting block 12 is far away from the ground, the other side of the bag net 31 is close to the ground, when the barrier 2 is arranged to protect the net, the net bag is not easy to touch reefs and the like, is not easy to damage, prolongs the service life of the net bag, and facilitates the movement of the net through the first roller 9 and the second roller 11;

after fishing is finished, the two strip-shaped supporting blocks 6 can be detached, screws are screwed off, then the bag net 31 is wound by taking the tail end connecting block 12 as a winding shaft, then the wound tail end connecting block 12 is placed on the baffle plate 2, then the limiting shaft 53 is rotated to enable the stop block 54 to correspond to the connecting hole, then the limiting shaft 53 and the stop block 54 corresponding to the limiting hole 42 and the connecting hole 43 are inserted, the limiting shaft 53 is rotated after the stop block 54 completely penetrates through the connecting hole 43 to enable the stop block 54 to be staggered with the connecting hole 43, the tail end connecting block 12 is limited, namely the bag net 31 is limited, the bag net 31 is convenient to store, when the bag net is used, the stop block 54 corresponds to the connecting hole 43 by rotating the limiting shaft 53, then the limiting shaft 53 is pulled out, and the bag net is unfolded;

when the bag net 31 needs to be replaced or repaired, the fixture blocks 36 on the two sides of the clamping block 33 are pressed to enable the fixture blocks 36 to completely enter the clamping block 33, the front end fixing connection 32 is pushed through the action of the silica gel pad 14, the clamping block 33 partially enters the through hole 15, the fixture blocks 36 partially enter the through hole 15, then the fixture blocks 36 on the two sides of the other clamping block 33 are sequentially pressed, then the bag net 31 can be taken down for repair or replacement, the disassembly is convenient, when the bag net is installed, the clamping block 33 is correspondingly inserted into the through hole 15, when the bag net is inserted, the two sides of the inner surface of the through hole 15 push the moving block 34 to extrude the elastic piece 35 into the clamping block 33 through the arc surfaces of the pressurizing fixture blocks 36, after the fixture blocks 36 completely pass through the through hole 15, the fixture blocks are limited through the action of the elastic piece 35, the operation is simple, at the moment, the front end fixing chain 32 is positioned in the return-shaped groove 13, the silicone pad 14 is now in a compressed state.

the net is provided with the support frame 1 shaped like a Chinese character 'hui', so that the net opening is always in an open state and cannot be closed, and a plurality of material pickers 7 are arranged at the front side of the square-shaped support frame 1 to catch crabs, shells, mollusks and the like hidden in seabed sand out and enter the sac net 31 to be more easily caught, and by arranging the first roller 9 and the second roller 11, one side of the pocket net 31 is far away from the seabed, and the baffle 2 is arranged at one side close to the seabed for protection, thereby greatly reducing the contact between the bag net 31 and the reef, reducing the damage of the bag net 31, the service life of the sac net 31 is prolonged, the net can move on the seabed more conveniently when passing through the first roller 9 and the second roller 11, and make things convenient for accomodating of bag net 31 after fishing, and easy operation, the dismantlement of bag net 31 is simple simultaneously, is convenient for repair or change bag net 31.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A subsea trawl tool, comprising: a square-shaped support frame;

the tail end connecting block is fixedly connected to one side of the bag net;

2. The submarine trawl net according to claim 1, wherein a front end fixing chain is fixedly connected to a left side of the sac net, and a plurality of clamping blocks are fixedly connected to one side of the front end fixing chain.

3. The submarine trawl net according to claim 2, wherein two moving blocks are slidably connected between two sides of the inner wall of the clamping block, an elastic member is fixedly connected between the two moving blocks, clamping blocks are fixedly connected to opposite sides of the two moving blocks, and one side of each clamping block is an arc surface.

4. The submarine trawl net according to claim 3, wherein one side of the square-shaped support frame is provided with a square-shaped groove adapted to the front end fixing chain, one side of the inner surface of the square-shaped groove is provided with a plurality of through holes adapted to the clamping blocks, and one side of the inner surface of the square-shaped groove is bonded with a silica gel pad.

5. The bottom trawl net according to claim 4, wherein when the sac net is installed with the clip-shaped support frame, the front end fixing chain is located inside the clip-shaped groove, and a portion of the clip block passes through the through hole and extends to one side of the clip-shaped support frame, and the clip block is located at one side of the clip-shaped support frame.

6. The subsea trawl tool according to claim 1, wherein the number of pickers is provided in plurality, the pickers being folded bar blocks.

7. The submarine trawl net according to claim 1, wherein the limiting component comprises a limiting block, a limiting hole is formed in the limiting block, and a connecting hole is communicated with one side of the inner surface of the limiting hole.

8. The submarine trawl tool according to claim 7, wherein the fixing unit comprises a fixing block, a rotating member is fixedly connected to the front surface of the fixing block, a limiting shaft is fixedly connected to the rotating member, and a stopper is fixedly connected to one side of the surface of the limiting shaft.

9. The submarine trawl net according to claim 8, wherein the diameter of the limiting hole is the same as the diameter of the limiting shaft, and the size of the connecting hole is matched with the size of the stop block.

10. The subsea trawl tool according to claim 1, wherein the height of both sides of the sac net is the same when the bottom ends of the first and second rollers are horizontally placed.