TWI820981B - Bottom trawling catch screening and waste removal quick device - Google Patents

Abstract

A bottom trawling catch screening and waste removal quick device, the structure of which comprises: a net gear body, with an inlet end connected to the body net end of the trawling gear, and the other end opposite to the inlet end is the bag net end, the bag bag The end of the net is the space for collecting the target fish; the funnel net has the shape of a large round mouth on one side and the shape of a small round mouth on the other side; the unloading port is a triangular opening on the top surface of the net barrel, which is used for The waste is quickly removed; the filter has a filter body and a fixed frame, the upper half of the filter body is provided with a fixed grille, and the lower half of the filter body is provided with a guide grille, and the filter body is fixed to the After the frame is combined, a bare void area is formed between the guide grille of the lower half of the filter body and the fixed frame; a floating ball; an escape port; a flow stabilization net, which is arranged on the escape port to stabilize the structural integrity of the net; and The intercepting net prevents the young fish from the filter from returning to the bag net, and can guide the young fish to the escape port for exclusion.

Description

Bottom trawl catch screening and waste rapid removal device

The present invention relates to a net device for fishing aquatic organisms in the ocean, especially a net device with a discharge opening, through which garbage or waste in the ocean can be quickly taken out and the size of the catch can be screened.

Among traditional fishing methods, trawls are mobile fishing gear with filtering properties. They are one of the fishing gears with higher "fishing efficiency" in current marine fishery production, but there is also a risk of being too high. The advantage of trawling is that it is active and flexible, actively pursues fish schools, has high fishing efficiency, and has a wide operating range. It can catch aquatic animals in oceans and inland waters.

But in fact, due to the large fishing capacity of the trawl fishing method, and the problem of by-caught commercial fish and low (or no) value miscellaneous fish, the abundance of coastal fishery resources has decreased. In order to protect the fishery resources, there are regulations Control measures such as closed fishing areas, closed fishing seasons, and catch amounts are in place, but such control methods still cannot solve the problem of young and miscellaneous fish being caught.

Although the screening mechanism can be used to preliminarily screen the size of the catch, garbage in the sea may be caught during the trawl operation, and large garbage can easily block the front end of the screening mechanism, causing fishermen to It is inconvenient to raise the net and it takes a lot of time to eliminate it. If ignored, it will cause damage to the net during the towing process, causing great trouble to the fishermen.

In addition, in the past, the screening of juvenile fish was an integrated device. Most of them were directly installed and the entire device needed to be directly sewn into the net. However, when the screening device is used in different seasons, different operating sea areas, and different operating water depths, the corresponding Screening objects are different, so it is often necessary to adjust the screening distance, or when the screening device is damaged and needs to be repaired or replaced, it will take a lot of time and manpower to remove the device from the net and re-sew it. Therefore, it must take a long time. Stopping fishing operations will have a great impact on fishermen's fishing operations.

The present invention provides a bottom trawl catch screening and waste rapid removal device. The purpose of the device is to effectively reduce the probability of catching target catches that have not reached mature size through the structure of the filter, or that non-target catches are accidentally caught. The reinforced rods set around the filter prevent large catches from colliding and damaging the filter when entering the end of the bag net, ensuring that the device can be used normally. In addition, the filter can be quickly and conveniently removed through the unloading port. The removal of garbage and waste intercepted in front reduces the damage to fishing gear and allows the trawl to quickly return to fishing and repair operations. Through quick replacement of the filter, the time spent on replacing the filter is effectively reduced, making the bottom trawl fishing operation more efficient. Efficient.

The invention is a bottom trawl catch screening and waste rapid removal device. Its structure includes: a net barrel, with an inlet end connected to the end of the body net of a trawl fishing gear, and the other end relative to the inlet end is The end of the bag net is a space for collecting target catches; a funnel net has a diameter of the net mouth at its front and rear ends, one side is in the shape of a large round mouth, and the other side is in the shape of a small round mouth. The large round mouth is vertically sewn along the barrel of the net; the unloading opening is a triangular opening on the top of the barrel of the net. The mouth is arranged behind the small round mouth; a filter is arranged in the barrel of the net, and has a filter body and a fixed frame. The upper half of the filter body is provided with a vertical fixed grid. The grid, and the horizontal solid rods for the fixed grids to pass through, form a screening area. The lower half of the screener body is provided with a guide grid of the upper section, and the screener body and the fixed frame are After combination, a bare area is formed between the lower part of the guide grille in the lower half of the filter body and the fixed frame; a floating ball is attached to the outside of the top of the filter; and an escape port is provided on the top of the filter. to the rear of the net, and toward the end of the bag net of the net barrel; a flow-stabilizing net, set on the escape port to stabilize the structural integrity of the net; and an interception net, with the lower edge of the interception net and the The bottom of the guide grille of the filter is connected. The upper edge of the interception net is tilted and straightened toward the end of the escape port near the bag net side and then sewn. The left and right sides of the interception net are along the barrel of the net. Suture in place.

In one embodiment of the present invention, the above-mentioned small round mouth is connected to the net barrel through a rope or a steel cable, so that the small round mouth is positioned above the net barrel.

In one embodiment of the present invention, the position of the small round opening is substantially at the same horizontal position as the screening area on the screener.

In one embodiment of the present invention, the apex of the triangular opening of the above-mentioned unloading port faces the filter.

In one embodiment of the present invention, the above-mentioned removal opening has a connecting side and two opening sides.

In one embodiment of the present invention, the opening edges of the above-mentioned triangular opening can be fixed to the top surface of the net barrel through a zipper structure, forming a complete cylindrical fishing net structure without openings.

In one embodiment of the present invention, the opening edges of the above-mentioned triangular opening can be fixed to the top surface of the net barrel through a tether structure, forming a complete cylindrical fishing net structure without openings.

In one embodiment of the present invention, the filter body of the above-mentioned filter is a three-quarter circular frame. The width of the three-quarter circular frame is 20 mm and the thickness is 3.5 mm.

In one embodiment of the present invention, the filter body of the above-mentioned filter is provided with 11 round holes with a diameter of 9 mm, and the fixed frame is provided with 16 lock holes with a diameter of 9 mm.

In one embodiment of the present invention, the filter body of the above-mentioned filter is lockedly connected to the keyholes on the fixed frame through the round holes.

In one embodiment of the present invention, the upper half of the above-mentioned filter is a screening area, so that marine garbage and waste are left in the screening area.

In one embodiment of the present invention, the above-mentioned screening area is provided with a fixed grille to allow juvenile fish and bycatch to escape.

The effect of the present invention is that it can assist trawl fisheries to reduce by-catch problems, especially target catches that have not reached mature body size and non-target catches of low (or no) value. Through the setting of the filter, it can effectively target the size of the fish body. Screening, and the large garbage and waste left in front of the filter can be removed immediately and conveniently through the unloading port to avoid damage to the fishing gear, so that the fishing gear can resume trawling operations more quickly, and when the filter needs to be replaced , the filter can be quickly removed and installed through screws, etc., effectively reducing the time spent on maintenance and replacement operations.

1: Catch screening and waste removal device

2: Net barrel body

21: Entrance port

22: End of bag net

3: Funnel Network

31:Big round mouth

32:Small round mouth

4: Take out the unloading port

5:Filter

51:Filter body

511: Fixed grille

512: Horizontal solid rod

513:Guide grille

514: Naked area

52:Fixed frame

521: long through hole

522:joint structure

6: Float

7:Escape hatch

8: Stable flow network

9:Interception network

A: Escape path for bycatch of juvenile fish

B: Catch path

C: Uninstall path

Figure 1 is a schematic diagram of a rapid device for bottom trawl catch screening and waste removal according to the present invention.

2A to 2C are schematic diagrams of the screener of the bottom trawl catch screening and waste removal rapid device of the present invention.

Figure 3 is a top view of the bottom trawl catch screening and waste removal rapid device of the present invention.

The embodiments of the present invention are described in detail below with reference to the drawings. The accompanying drawings are mainly simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner. Therefore, only elements related to the present invention are marked in these drawings. , and the components shown are not drawn based on the number, shape, size ratio, etc. of the actual implementation. The actual implementation specifications and sizes are actually a selective design, and the component layout may be more complex.

The following description of the embodiments refers to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in this invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only. The direction of the attached schema. Therefore, the directional terms used are to illustrate and understand the present application, rather than to limit the present application. In addition, in the specification, unless explicitly described to the contrary, the words "including" or "including" should be interpreted as It is meant to include this element but not to exclude any other elements.

Please refer to Figure 1 to Figure 3. The structure of the bottom trawl catch screening and waste removal rapid device 1 disclosed in this embodiment includes: a net gear barrel 2 with an inlet end 21 connected to the end of the body net of a trawl gear, relative to the inlet end The other end of 21 is the end 22 of the bag net, and the end 22 of the bag net is a space for collecting the target catch; The side is in the shape of a small round opening 32, and the large round opening 31 is vertically sewn along the net barrel 2; the unloading port 4 is a triangular opening on the top surface of the net barrel 2, which is arranged on the small round Behind the mouth 32; a filter 5 is installed in the net barrel 2. It has a filter body 51 and a fixed frame 52. The upper half of the filter body 51 is provided with a vertical fixed grille. 511, and the horizontal solid rods 512 for the fixed grids 511 to pass through, forming a screening area. The lower half of the screener body 51 is provided with a guide for the upper section. Grille 513, and after the filter body 51 and the fixed frame 52 are combined, a bare area 514 is formed between the lower part of the guide grille 513 of the lower half of the filter body 51 and the fixed frame 52; floating ball 6. Attached to the outer side of the top of the filter 5; an escape port 7 is provided behind the top of the filter 5 and toward the end 22 of the bag net of the net barrel 2; a flow stabilizing net 8 is provided On the escape port 7, it is used to stabilize the structural integrity of the net; and an interception net 9, the lower edge of the interception net 9 is connected with the bottom of the guide grille 513 of the filter 5, and the interception net 9 The upper edge is tilted and straightened toward the end of the escape port 7 near the bag net side and then sewed, and the left and right sides of the interception net 9 are sutured and fixed along the net barrel 2 .

The present invention uses the movement of fishing boats to catch fish, and the escape path A of juvenile fish and by-catch shown in Figure 1 can allow juvenile fish and by-catch to escape. During fishing operations, the guide grille 513 can be pushed up 45 degrees toward the end 22 of the bag net. corner, to enhance the guiding efficiency of the catch through the filter 5 or into the bag net, and to prevent the catch from accumulating in front of the filter 5, which will reduce the catch screening effect and even cause damage to the net; the lower section of the filter 5 is designed to be bare. Allows catches that have reached mature size to easily enter the bag net.

The target catch passes through the bare area 514 below the filter 5, so that the target catch enters the bag net through the catch path B.

When marine debris and waste accumulate in front of the filter 5, the marine debris and waste can be quickly removed through the removal path C by opening the unloading port 4.

In one embodiment, the funnel net 3 is installed at the front end of the filter 5 toward the inlet end 21 of the net barrel 2, and the small round opening 32 of the funnel net 3 is about 160-180 cm away from the filter 5.

In one embodiment, the small round mouth 32 is connected to the net barrel 2 through a rope or steel cable, so that the small round mouth 32 is positioned above the net barrel 2 .

The position of the small round opening 32 is substantially at the same horizontal position as the screening area on the filter 5 .

In one embodiment, the vertex of the triangular opening of the unloading port 4 faces the filter 5 .

Wherein, the unloading port 4 is provided at 30cm from the front end directly above the filter 5 .

In one embodiment, the removal opening 4 has a connecting side and two opening sides.

Preferably, the side length of the connecting side and the two opening sides is 100cm.

Among them, the opening edges of the triangular opening can be fixed to the top surface of the net barrel 2 through a zipper structure to form a complete cylindrical fishing net structure without openings.

Among them, the opening edges of the triangular opening can be fixed to the top surface of the net barrel 2 through a tether structure to form a complete cylindrical fishing net structure without openings.

In one embodiment, the length of the net barrel 2 is approximately 880cm.

In one embodiment, the filter body 51 is approximately a three-quarter circular frame.

The three-quarter circular frame of the filter body 51 has a width of 20 mm and a thickness of 3.5 mm.

Wherein, the vertical fixed grid 511 of the filter body 51 is composed of a round rod, the diameter of the round rod is 3mm, and the distance between each round rod is 10mm to 20mm.

Preferably, the distance between each round rod is 13mm.

Preferably, the guide grille 513 can be inclined toward the rear.

In one embodiment, the tilt angle is 30 degrees to 60 degrees.

Preferably, the tilt angle is 45 degrees.

Wherein, the inclination angle is to guide the fish caught in the bare area 514 below the guide grille 513 to enter the bag net of the removal device.

Preferably, the fixed frame 52 is a perfect circular frame.

Preferably, the width of the fixed frame 52 is 46mm and the thickness is 4mm.

The outer diameter of the fixed frame is 1,092 mm and the inner diameter is 1,000 mm. In one embodiment, the fixed frame 52 is provided with a U-shaped handle at both left and right ends.

In one embodiment, the fixed frame 52 is provided with a plurality of elongated through holes.

The fixed frame 52 has a total of 16 elongated through holes 521 .

Among them, the elongated through holes 521 are approximately elongated holes.

Among them, the length of the elongated through holes 521 is about 185mm and the width is about 10mm.

Among them, the long through holes 521 and the trawl fishery fishing gear are connected through one of but not limited to a suture method, a rivet method, a button method, a clamp method, a winding method, a support line method, or other methods. The combinations engage with each other.

Preferably, the inner side of the fixed frame 52 further includes a joint structure 522 for locking with the filter body 51 .

Preferably, the joint structure 522 is provided with 16 keyholes with a diameter of 9 mm.

Among them, the round holes on the filter body 51 vertically overlap with the keyholes on the fixed frame 52, and then are connected through a fixing member.

The fixing component may be but is not limited to a screw.

Wherein, a rubber layer is laid on a joint surface of the filter body 51 and the fixed frame 52 .

Wherein, the thickness of the rubber layer is 2mm.

In one embodiment, the float 6 is attached to the top of the filter 5 so that the tilt angle of the filter 5 is 60 to 80 degrees.

Preferably, the inclination angle of the filter 5 is 80 degrees.

In one embodiment, the interception net 9 and the escape port 7 are both installed at the rear end of the filter 5 toward the bag net.

In one embodiment, the upper half of the filter 5 is a screening area, allowing marine debris and waste to remain in the screening area.

In one embodiment, the screening area is provided with a fixed grille 511 to allow juvenile fish and bycatch to escape.

In one embodiment, the float 6 is a spherical float 6 with a diameter of 10 inches.

In one embodiment, the funnel net 3 is made of PE material, with a total length of 150cm and a mesh size of 2.33cm. The diameter of the large round mouth 31 of the funnel net 3 is the same as the diameter of the net barrel 2, and the small round mouth 32 The diameter of the mesh opening is about 1/2 of the diameter of the large round opening 31. The large round opening 31 is vertically sewn along the net barrel 2. The linear distance between the large round opening 31 and the bottom of the filter 5 is 330cm. The small round opening 32 is separated from the screen. The straight-line distance of device 5 is approximately 160cm to 180cm.

In one embodiment, the escape port 7 is disposed behind the top of the filter 5 and toward the end 22 of the bag net of the net barrel 2. The length of the opening plane is 100 cm and the width is 90 cm.

In one embodiment, the current-stabilizing net 8 covers the escape port 7 to enhance the structural integrity of the entire net and prevent the net from deforming during towing in the water, which would affect the efficiency of removing young fish.

Preferably, the flow stabilizing net 8 has a length of 120cm and a width of 100cm.

Preferably, the flow-stabilizing mesh 8 is a square mesh.

Preferably, the mesh size of each mesh in the flow-stabilizing net 8 is 10cm*10cm.

The above-mentioned embodiments or implementation modes are only illustrative to illustrate the principles, characteristics and effects of the present invention, and are not intended to limit the scope of the present invention. The above embodiments may be modified and changed within the spirit and scope of the present invention. Any equivalent changes and modifications accomplished by applying the contents disclosed in the present invention shall still be covered by the following patent application scope.

1: Catch screening and waste removal device

2: Net barrel body

21: Entrance port

22: End of bag net

3: Funnel Network

31:Big round mouth

32:Small round mouth

4: Take out the unloading port

5:Filter

51:Filter body

6: Float

7:Escape hatch

8: Stable flow network

9:Interception network

A: Escape path for bycatch of juvenile fish

B: Catch path

C: Uninstall path

Claims (9)

A bottom trawl catch screening and waste rapid removal device, the structure of which includes: a net barrel, with an inlet end connected to the end of the body net of a trawl fishing gear, and the other end relative to the inlet end is a bag net At the end, the end of the bag net is a space for collecting the target catch; a funnel net, the diameter of the net mouth at its front and rear ends is in the shape of a large round mouth on one side, and in the shape of a small round mouth on the other side. The net barrel is vertically sewn; a discharge port is a triangular opening on the top surface of the net barrel, which is arranged behind the small round opening; a filter is arranged in the net barrel , which has a filter body and a fixed frame. The upper half of the filter body is provided with vertical fixed grilles and horizontal solid rods for the fixed grilles to pass through to form a screening area. The lower half of the body is provided with a guide grille in the upper section, and after the filter body and the fixed frame are combined, a gap is formed between the lower part of the guide grille in the lower half of the filter body and the fixed frame. Bare empty area; a floating ball, attached to the outside of the top of the filter; an escape port, set at the rear of the top of the screen, and toward the end of the bag net of the net barrel; a stabilizing net, set On the escape port, it is used to stabilize the structural integrity of the net; and an interception net, the lower edge of the interception net is connected with the bottom of the guide grille of the filter, and the upper edge of the interception net is close to the bag The end direction of the escape port on the net side is tilted and straightened and then sewn, and the left and right sides of the interception net are sewn and fixed along the barrel of the net; the apex of the triangular opening of the unloading port faces the filter. The bottom trawl catch screening and waste rapid removal device as described in claim 1, wherein the small round mouth is connected to the net barrel through a rope or steel cable, so that the small round mouth is positioned above the net barrel. . The bottom trawl catch screening and waste rapid removal device as described in claim 2, wherein the position of the small round mouth is substantially at the same horizontal position as the screening area on the screener. The bottom trawl catch screening and waste rapid removal device as described in claim 1, wherein the unloading port has a connecting side and two opening sides. The bottom trawl catch screening and waste quick removal device as described in claim 4, wherein the opening edges of the triangular opening can be fixed to the top surface of the net barrel through a zipper structure to form a complete barrel without openings. Fishnet-like structure. The bottom trawl catch screening and waste rapid removal device as described in claim 4, wherein the opening edges of the triangular opening can be fixed to the top surface of the net barrel through a tether structure, forming a complete without openings. Tubular fishing net structure. As described in claim 1, the bottom trawl catch screening and waste rapid removal device, the filter body of the filter is a three-quarter circular frame, the width of the three-quarter circular frame is 20mm, and the thickness is 3.5mm. As described in claim 1, the device for bottom trawl catch screening and rapid waste removal, the filter body of the filter is provided with 11 9mm round holes, and the fixed frame is provided with 16 9mm keyholes. As described in claim 8, the bottom trawl catch screening and waste rapid removal device, the filter body of the filter is locked and connected to the keyholes on the fixed frame through the round holes.