CN2769174Y

CN2769174Y - Trawl board for fishing boat

Info

Publication number: CN2769174Y
Application number: CN 200520100458
Authority: CN
Inventors: 郑加乃; 罗启杰
Original assignee: XIANGSHAN HEFENG MACHINERY FACTORY
Current assignee: XIANGSHAN HEFENG MACHINERY FACTORY
Priority date: 2005-02-01
Filing date: 2005-02-01
Publication date: 2006-04-05
Anticipated expiration: 2015-02-01

Abstract

The utility model relates to a trawl board for a fishing boat, which is used for single-boat trawl fishing to expand fishing nets. The utility model comprises a trawl board body and an upper and a lower connecting boards which are welded with each other into integration, wherein the trawl board body forms a tile shape, a water dividing tank is arranged on the trawl board body, the front face of the trawl board body is provided with an upper and a lower net rope tying boards, and the middle part of the back face of the trawl board body is welded with boat cable tying boards which are divided into an upper and a lower 2-3 steps; the upper and the lower connecting boards and the trawl board body are inwards inclined towards the back face to form an angle, except for welding edges, other peripheries of the connecting boards form a circular-arc shape and form smooth transition with the arc line of the periphery of the trawl board body, wherein the upper connecting board is a hollow board and a balance weight is filled in the lower connecting board. The trawl board of the utility model can be floated by an effective angle due to the integral concave structure, the design of the circular arc of the periphery and the water dividing tank can reduce the resistance force of the trawl board which has the advantages of good equilibrium and stability and adjustable range of use; the utility model can be used for catching fish of bottom layers as well as fish of middle and upper layers, the fishing nets have adjustable expanding angles and the maximum expanding angles can reach more than 80m.

Description

The fishing boat trawl board

Technical field

The utility model relates to boats and ships relevant devices technical field, especially relates to the fish-catching apparatus of trawlboat.

Background technology

Traditional trawling is with two ships fishing net to be opened, and be to improve effect, and energy savings is now used single boat trawl instead, therefore must use trawl board, so that advance with ship net is opened; China's utility model patent once disclosed a kind of " the web plate structure that trawlboat is used ", the patent No. is 92209487.X, it is respectively to be (the taper plate body of shape on a kind of face of plate in length and breadth, on convex surfaces, be provided with several shackles, be distributed in around the web plate central authorities, periphery in the indent one side also is distributed with shackle, and the balance difficulty was easily touched mud when this web plate used; Another utility model patent is " a kind of web plate water-segregator peculiar to vessel ", the patent No. is 98241719.5, and it comprises top panel, lower faceplate, fender of the anti-tie end, and upper and lower panel becomes 135 ° of welding, two ends, the upper and lower panel left and right sides are semicircle, and this web plate can only be caught bottom fish; It is that net opens the desirable degree of out of reach that also there is common issue with in last two schemes, influences catch.

Summary of the invention

The purpose of this utility model is in order to overcome the deficiency of prior art, and web plate was steady when a kind of operation was provided, and net opens the amplitude broad; And trawlnet is adjustable at marine level of living in, both can catch bottom fish, also can catch middle level or upper strata fish, when catching bottom fish, can be coastal end come-up slightly, unlikelyly too sink to the seabed and collude the fishing boat trawl board of submerged reef.

For achieving the above object, the technical solution adopted in the utility model is such: a kind of fishing boat trawl board, be clamshell shape, and comprise the fishplate bar that is welded to each other all-in-one-piece trawl board body and top and the bottom thereof; Said trawl board body is a tile, positive projection, and it is made of left and right sides two parts, and the spacing that staggers is left along thickness direction in the joint of part about it, the bypass channel when forming operation; The other end limit relative with the joint limit respectively is circular arc, and wherein the arc radius of the left side (front portion of ship working direction) is greater than the arc radius on the right; The trawl board body is welded with connecting panel in two ends up and down, and respectively there is the net rope fixed board that protrudes the web plate surface right part of last lower connecting plate, and respectively having row on this two plate is the nettle hole; Middle part, the back side at the trawl board body is welded with the mooring chain plate, and the mooring chain plate divides several grades up and down, and every grade has a row mooring chain wire rope hole; The said lower connecting plate of going up welds mutually with last lower connecting plate respectively, and itself and trawl board body are to back side introversion one angle, except that welding edge, all the other peripheries are circular arc, and with the peripheral camber line rounding off of trawl board body, wherein upper connecting plate is a cored slab, fills with mass such as ingot iron bars in the lower connecting plate.

During use, the fishing boat afterbody is fastened the trawl board of two symmetries, and concave surface is to right, if when catching bottom fish, tow steel rope branch is lain in the lower gear of every block of trawl board mooring chain plate, when catching at the middle and upper levels fish then with the tow wire rope rope in or perform; The hawser of fishing net raised to the higher plane of principle, and to divide what lie in trawl board be on the nettle upper plate, and what simultaneously the hawser infraclass branch of fishing net is lain in trawl board is on the nettle lower plate; The open amplitude that on mooring chain plate and the net rope fixed board row hole is used to regulate fishing net, if tow and nettle are tied up to the closer to the trawl board center, the open amplitude of fishing net is big more, on the contrary the amplitude of then opening reduces.

Owing to adopted technique scheme, a kind of fishing boat trawl board of the present utility model, making because of the single-piece concave structure under the impact of trawl board current in ship running can floating effective angle, the design of peripheral circular arc and the bypass channel of setting, can reduce the resistance of trawl board, energy efficient; Counterweight makes trawl board balance and good stability in the hollow and lower connecting plate of upper connecting plate; Range of use is adjustable, both can be used for fishing for bottom fish, also can fish for fish at the middle and upper levels, and the fishing net opening angle is adjustable, and maximum can reach more than the 80m, and present trawl board maximum can only reach 40m, and under the identical situation of other conditions, catch can double.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the back view of Fig. 1.

Fig. 4 is the left-hand scheme drawing of Fig. 1.

Among the figure: 1, upper connecting plate, 2, upper plate is the nettle hole, 3, be the nettle upper plate, 4, trawl board body right half, 5, be the nettle lower plate, 6, lower plate is the nettle hole, 7, lower connecting plate, 8, lower connecting plate, 9, bypass channel, 10, trawl board body left half, 11, upper junction plate, 12, mooring chain plate, 13, the mooring chain hole.

The specific embodiment

Embodiment 1

Shown in accompanying drawing 1-4, a kind of fishing boat trawl board of the present utility model is clamshell shape, comprises the fishplate bar 1,7 that is welded to each other all-in-one-piece

trawl board body

10,4 and top and the bottom thereof; Said trawl board body is a tile, positive projection, it is made of left and right sides two parts, the spacing that staggers is left in the joint of part along thickness direction about it, bypass channel 9 other end limit relative with the joint limit when forming operation respectively is circular arc, and wherein the arc radius of the left side (front portion of ship working direction) is greater than the arc radius on the right; The trawl board body is welded with connecting panel 11,8 in two ends up and down, and respectively there is the net rope fixed board 3,5 that protrudes the web plate surface right part of last lower connecting plate, and respectively having row on this two plate is nettle hole 3,6; Middle part, the back side at the trawl board body is welded with mooring chain plate 12, and the mooring chain plate divides two grades up and down, and every grade has a row mooring chain hole 13; The said lower connecting plate 1,7 of going up welds mutually with last lower connecting plate 11,8 respectively, itself and trawl board body are to 140 ° of left and right sides angles of back side introversion, except that welding edge, all the other peripheries are circular arc, and with the peripheral camber line rounding off at trawl board body two ends, wherein upper connecting plate is a cored slab, fills in the lower connecting plate with mass such as ingot iron bars;

Going up routine described bypass channel also can be two roads or multiple tracks, and this moment, the corresponding many parts that also are of trawl board body joined.

Embodiment 2

With 12 fens upper, middle and lower third gear of mooring chain plate, every grade has a row mooring chain hole in embodiment 1, and all the other repeat embodiment 1.

Claims

1, a kind of fishing boat trawl board, comprise the fishplate bar (1,7) that is welded to each other all-in-one-piece trawl board body (10,4) and top and the bottom thereof, it is characterized in that: said trawl board body is a tile, positive projection, it is made of left and right sides two parts, the spacing that staggers is left along thickness direction in the joint of part about it, forms bypass channel (9); The other end limit relative with the joint limit respectively is circular arc; The trawl board body is welded with connecting panel (11,8) in two ends up and down, and respectively there is the net rope fixed board (3,5) that protrudes the web plate surface right part of last lower connecting plate, and respectively having row on this two plate is nettle hole (3,6); Middle part, the back side at the trawl board body is welded with mooring chain plate (12), and the mooring chain plate divides 2--3 shelves up and down, and every grade has a row mooring chain hole (13); The said lower connecting plate (1,7) of going up welds mutually with last lower connecting plate (11,8) respectively, itself and trawl board body are to back side introversion one angle, except that welding edge, all the other peripheries are circular arc, and with the peripheral camber line rounding off at trawl board body two ends, wherein upper connecting plate is a cored slab, fills with mass in the lower connecting plate.

2, a kind of fishing boat trawl board according to claim 1 is characterized in that: in the circular arc of said trawl board body two ends, the anterior arc radius on one side of ship working direction is greater than the arc radius of another side.