TWI813472B - Quick disassembly filter for fishery - Google Patents

Abstract

A quick disassembly filter for fishery, suitable for trawling fishing nets, the quick disassembly filter for fishery comprises: a filter body, which is arranged in the trawl fishery fishing net, is a circular frame, and the upper half of the filter body is provided with There are vertical fixed grilles, and horizontal fixed rods for some fixed grilles to pass through, the lower part of the screen is provided with a guide grille of the upper section and a bare area of the lower section; and a fixed frame, The system is sleeved and fixed on the outside of the screen body, and the fixed frame is provided with a plurality of through holes for connecting with the trawl fishing nets.

Description

Quick disassembly filter for fisheries

The present invention relates to a quick-detachable screener for fisheries, and is particularly used in trawl fishing nets to allow young fish to escape through fixed grids and to allow target size fish to pass through the bare area to the inside of the trawl net. Use quick release filter.

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.

In fact, the trawl fishing method has a large fishing capacity and the problem of by-caught commercial catches and low (or no) value miscellaneous catches, resulting in a decrease in the abundance of coastal fishery resources. In order to protect fishery resources, fishing bans have been established Control measures such as areas, closed fishing periods, and catch volumes are adopted, but such control methods still cannot solve the problem of young trash fish being caught.

In the past, the juvenile catch screener was a one-piece device, and the entire device needed to be directly sewn into the net. However, the screening objects of the screening device were different in different seasons, different operating sea areas, and different operating water depths, so it was often When it is necessary to adjust the screening distance, or when the screening device is damaged and needs to be repaired and replaced, it will take a lot of time and manpower to dismantle the device from the net and re-sew it. Therefore, fishing operations must be stopped for a long time, which has a great impact on fishermen's fishing operations. great impact.

The present invention provides a quick-detachable filter for fisheries. The purpose of the filter is to effectively reduce the probability of catching target catches that have not reached mature size or accidentally catching non-target catches through the structure of the filter, and it can be quickly replaced and maintained. Screening device.

A quick-detachable filter for fishery of the present invention is suitable for use in a trawl fishery fishing gear. The quick-detachable screener for fishery includes: a filter body, which is arranged in the trawl fishery fishing gear and is a circular 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. The lower half of the filter has a guide grille; and a fixed frame, which is nested And fixed on the outside of the filter body, the fixed frame is provided with a plurality of long through holes for connecting with the trawl fishery fishing gear; wherein, after the filter body is combined with the fixed frame, the filter body A bare area is formed between the lower part of the guide grille and the fixed frame.

In one embodiment of the present invention, the above-mentioned filter body is approximately a three-quarter circular frame.

In one embodiment of the present invention, the circular frame of the filter body has a width of 20 mm and a thickness of 3.5 mm.

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

In one embodiment of the present invention, the vertical fixed grid of the above-mentioned filter body is composed of a round rod, the diameter of the round rod is 3mm, and the distance between each round rod is 15mm.

In one embodiment of the present invention, the above-mentioned fixed frame is a perfect circular frame.

In one embodiment of the present invention, the above-mentioned trawl fishery fishing gear is sewn to the fixed frame through the elongated through holes.

In one embodiment of the present invention, the inner side of the fixed frame further includes a joint structure for locking with the filter body.

In one embodiment of the present invention, the above-mentioned joint structure is provided with 16 lock holes with a diameter of 9 mm.

In one embodiment of the present invention, the above-mentioned filter body and the fixed frame are engaged and locked through a fixing member.

The effect of the present invention is to assist the trawl fishery in reducing by-catch problems, especially target catches that have not reached mature size and low (or no) value, through a quick-detachable screener for fisheries when trawling with fishing nets. Non-target catches can be effectively screened according to the size of the fish body through the setting of the filter. The filter body and the fixed frame can be quickly combined with screws. After sewing the fixed frame and the net gear, the filter body can be connected with the screws. Quickly connects to the fixed frame to speed up maintenance and replacement of net gear.

In order to make the above-mentioned features and advantages of the present invention more clearly understood, the following embodiments are illustrated in conjunction with the accompanying drawings. In addition to these detailed descriptions, the present invention can also be widely implemented in other embodiments. Easy substitutions, modifications, and equivalent changes of the embodiments are included in the scope of the present invention, and are subject to the scope of the patent application. In the description of the specification, many specific details are provided to enable the reader to have a more complete understanding of the present invention; however, the present invention may still be implemented with some or all of the specific details omitted. In addition, well-known steps or elements are not described in detail to avoid unnecessary limitations on the present invention. The same or similar elements in the drawings will be represented by the same or similar symbols. Please note that the drawings are for schematic purposes only and do not represent the actual size or quantity of components. Some details may not be fully drawn in order to keep the drawings concise. Detailed descriptions are as follows.

Please refer to Figures 1 to 5 at the same time. Figure 1 is a schematic diagram of a quick-detachable filter for fishery according to the present invention; Figure 2 is a schematic diagram of the filter body of a quick-detachable filter for fishery according to the present invention; Figure 3 It is a schematic diagram of the fixed frame of a quick-detachable filter for fishery according to the present invention; Figure 4 is a schematic diagram of the filter engagement of a quick-detachable filter for fishery according to the present invention; Figure 5 is a quick-detachable filter for fishery according to the present invention. Schematic diagram of the guide grille of the device. In this embodiment, a quick-detachable filter for fishery is suitable for a trawl fishery fishing gear. The quick-detachable screener 1 for fishery includes: a filter body 11, which is arranged in the trawl fishery fishing gear. It is a circular frame. The upper half of the filter body 11 is provided with vertical fixed grilles 111 and horizontal solid rods 112 for the fixed grilles 111 to pass through. The lower half of the filter is provided with an upper section. A guide grille 113; and a fixed frame 12, which is nested and fixed on the outside of the filter body 11. The fixed frame 12 is provided with a plurality of long through holes 121 for connecting with the trawl fishery fishing gear. Connection; wherein, after the filter body 11 and the fixed frame 12 are combined, a bare area 114 is formed between the lower part of the guide grid 113 of the lower half of the filter body 11 and the fixed frame 12 .

As a preferred way, the filter body 11 is approximately a three-quarter circular frame.

As a preferred way, the circular frame of the filter body 11 has a width of 20 mm and a thickness of 3.5 mm.

As a preferred method, the circular frame of the filter body 11 is provided with 11 circular holes with a diameter of 9 mm.

As a preferred way, the vertical fixed grid 111 of the filter body 11 is composed of a round rod, the diameter of the round rod is 3mm, and the distance between each round rod is 15mm.

As a preferred method, the guide grille 113 can be inclined toward the rear.

Wherein, the tilt angle is 30 degrees to 60 degrees.

As a preferred way, the tilt angle is 45 degrees.

Wherein, the inclination angle is to guide the fish to enter the bag net of the trawl fishery fishing net from the bare area 114 below the guide grille 113 .

As a preferred way, the fixed frame 12 is a perfect circular frame.

As a preferred method, the fixed frame 12 is further provided with a U-shaped handle at both left and right ends.

As a preferred method, the width of the fixed frame 12 is 46mm and the thickness is 4mm.

Among them, the outer diameter of the fixed frame 12 is 1,092mm and the inner diameter is 1,000mm.

Among them, the elongated through holes 121 are approximately elongated holes.

Among them, the length of the long through holes 121 is about 185mm and the width is about 10mm.

Among them, the long through holes 121 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 fixed frame 12 has a joint structure 122 for locking with the filter body 11 .

As a preferred method, the joint structure 122 is provided with 16 keyholes with a diameter of 9 mm.

Among them, the round holes on the filter body 11 vertically overlap with the keyholes on the fixed frame 12, and then are connected through a fixing piece 1221.

The fixing member 1221 may be but is not limited to a screw.

Wherein, a rubber layer is laid on a joint surface of the filter body 11 and the fixed frame 12 .

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

Please refer to Figure 6, which is a schematic diagram of a trawl fishery fishing gear with a quick-detachable filter 1 for fishery according to the present invention. The trawl fishery fishing net 2 in Figure 6 has a net barrel 21. The net barrel 21 has an inlet 211 and an outlet 212 at both ends. The outlet 212 is connected to a bag net 22. The barrel body 21 further has an escape port 213 so that young fish can escape from the trawl fishery fishing gear 2 through the escape port 213.

As a preferred method, the quick-detachable filter 1 for fishery is installed inside the net barrel 21 and in front of the escape port 213 after the net barrel 21 and the fixed frame are joined to each other, and then the fixed frame is The frame is connected to the filter body. The upper half of the filter body is provided with a vertical fixed grille 111, and the lower half of the filter is provided with a guide grille 113 in the upper section. The filter is After the filter body is combined with the fixed frame, a bare area 114 is formed between the lower part of the guide grille 113 of the lower half of the filter body and the fixed frame.

As a preferred way, the fixed grid 111 on the upper half of the filter body can allow juvenile byproducts to pass through and escape through the escape opening 213 .

As a preferred way, the guide grille 113 on the lower half of the filter body allows the mature fish to enter the bag net 22 through the bare area 114.

To sum up, the quick-detachable filter for fisheries of the present invention mainly assists the trawl fishery to reduce by-catch problems, especially target catches that have not reached mature size, during trawl fishing with fishing nets. and low (or no) value non-target catches. Through the setting of the filter, the fish body size can be effectively screened. The filter body and the fixed frame can be quickly combined with screws. By sewing the fixed frame and the net gear, , you can use screws to quickly connect the filter body and the fixed frame, speeding up the maintenance and replacement of nets.

Although the present invention is disclosed in the foregoing embodiments, they are not intended to limit the present invention. Any person skilled in the similar art can make equivalent changes and modifications without departing from the spirit and scope of the present invention. Within the scope of patent protection.

1:Quick disassembly filter for fishery

11:Filter body

111: Fixed grille

112: Horizontal solid rod

113:Guide grille

114: Naked area

12:Fixed frame

121: Long through hole

122:joint structure

1221: Fixtures

2: Trawl fishery fishing nets

21: Net barrel

211:Entrance

212:Export

213:Escape hatch

22: Bag net

Figure 1 is a schematic diagram of a quick-detachable filter for fishery according to the present invention;

Figure 2 is a schematic diagram of the filter body of a quick-detachable filter for fishery according to the present invention;

Figure 3 is a schematic diagram of a fixed frame of a quick-detachable filter for fishery according to the present invention;

Figure 4 is a schematic diagram of the filter engagement of a quick-detachable filter for fisheries according to the present invention;

Figure 5 is a schematic diagram of the guide grid of a quick-detachable filter for fishery according to the present invention;

Figure 6 is a schematic diagram of trawl fishery fishing gear with a quick-detachable filter for fishery according to the present invention.

1:Quick disassembly filter for fishery

11:Filter body

111: Fixed grille

112: Horizontal solid rod

113:Guide grille

114: Naked area

12:Fixed frame

121: Long through hole

122:joint structure

Claims (8)

A quick-detachable screener for fishery, suitable for a trawl fishery fishing gear. The quick-detachable screener for fishery includes: a screener body, which is set in the trawl fishery fishing gear and is a circular frame. The filter The upper half of the body is provided with vertical fixed grilles and horizontal solid rods for the fixed grilles to pass through. The lower half of the filter is provided with a guide grille in the upper section; and a fixed frame. It is nested and fixed on the outside of the filter body, and the fixed frame is provided with a plurality of long through holes for connecting with the trawl fishery fishing gear; wherein, after the filter body and the fixed frame are combined, the A bare area is formed between the guide grille in the lower half of the filter body and the fixed frame; wherein, the inner side of the fixed frame further includes a joint structure for locking with the filter body; wherein, the joint The structure is equipped with 16 9mm keyholes. The quick-detachable filter for fisheries as described in item 1 of the patent application, wherein the filter body is a three-quarter circular frame. For the quick-detachable filter for fisheries described in item 1 of the patent application, the circular frame of the filter body has a width of 20mm and a thickness of 3.5mm. The quick-detachable filter for fisheries as described in item 1 of the patent application, wherein the circular frame of the filter body is provided with 11 circular holes with a diameter of 9mm. For example, in the quick-detachable filter for fisheries described in item 1 of the patent application, the vertical fixed grid of the filter body is composed of a round rod with a diameter of 3mm and a spacing of 15mm between the round rods. For the quick-detachable filter for fisheries described in item 1 of the patent application, the fixed frame is a perfect circular frame. For example, in the quick-detachable filter for fishery as described in item 1 of the patent application, the trawl fishery fishing gear is sewn to the fixed frame through the elongated through holes. For example, in the quick-detachable filter for fishing described in item 1 of the patent application, the filter body and the fixed frame are engaged and locked through a fixing member.