CN113229227A

CN113229227A - Hauling lead hook and use method thereof

Info

Publication number: CN113229227A
Application number: CN202110431673.2A
Authority: CN
Inventors: 周爱忠; 郁岳峰
Original assignee: East China Sea Fishery Research Institute Chinese Academy of Fishery Sciences
Current assignee: East China Sea Fishery Research Institute Chinese Academy of Fishery Sciences
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-08-10
Anticipated expiration: 2041-04-21
Also published as: CN113229227B

Abstract

The invention relates to a net-hauling and lead line hooking hook and a using method thereof. The hook comprises a straight hook handle, a tail end rope loop is arranged at the tail of the hook handle, a middle section rope loop is arranged at the middle section of the hook handle, the included angle between the hook head part at the top end of the hook handle and the hook handle is 85 degrees, and the hook handle is connected with the hook head part through a hook arc. The horizontal position of the hook can be adjusted through the horizontal adjusting rope only by standing on the deck in the hauling operation, and the upper and lower positions of the hook head are adjusted through the upper and lower adjusting rope. Therefore, the boom type trawl can be simply pulled up, the manpower required during pulling up is reduced, the sailor does not need to go out of the ship board for operation in stormy waves, and the risk of falling into the sea during operation of the sailor is reduced.

Description

Hauling lead hook and use method thereof

Technical Field

The invention belongs to the technical field of towing-type fishing nets, and particularly relates to a net-lifting and line-leading hook taking hook and a using method thereof.

Background

The cantilever type trawl is also called as a double-bracket trawl, originates from the gulf of Mexico, and is mainly used for catching shrimps. China was introduced in 1985, and is firstly used in western and non-ocean fishing fleets and is also used in coastal waters such as south China sea. The fishing boat adopting the operation mode extends a cross rod with the length of 8-12 meters from the middle parts of the two sides respectively, the rod tips are provided with pulleys, the trawl ropes are pulled out of the sides through the pulleys, 2-4 top netting gears are dragged by the two sides, the netting gears are generally horizontally expanded by using a net plate, and the netting gears cannot be entangled by the cross rods in the operation.

When the cantilever type trawl is used for hauling, two sides of the trawl respectively need a sailor to walk on a narrow cantilever (only 100 mm-200 mm wide) extending out of the ship, the sailor holds the railing with one hand, the trawl goes out of the ship, a long bamboo rod hook is used for taking a hauling lacing line positioned on the net plate, the trawl is pulled to the ship side by manpower, the trawl is connected with a rear hand rope reserved on a towing winch and then is twisted to take up the hauling line, and accordingly the trawl is hauled and a fishery is obtained. Although the method is simple to operate, the operation in the stormy waves is very dangerous when the ship leaves the swaying ship and needs courage and technology. Therefore, a safe and simple method is needed to solve the defects of the conventional method for hooking the net-lifting lead line.

Disclosure of Invention

The invention aims to solve the technical problem of providing a net hauling and lead hook taking hook which can simply haul a net arm frame type trawl, reduce the manpower required during hauling, avoid the need of sailing a crew out of a ship board during stormy waves and reduce the risk of the crew falling into the sea during operation.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a net-hauling and drawing line hook gets hook, net-hauling and drawing line hook gets hook includes straight hook shank, the afterbody of hook shank is equipped with the tail end becket bridle, the middle section of hook shank is equipped with the middle section becket bridle, the top hook head portion and the hook shank contained angle of hook shank are 85, hook head portion is slightly sharp shape, link to each other through the hook circular arc between hook shank and the hook head portion.

The whole net lifting and guiding line hooking and taking hook is made of round steel.

The middle section rope loop is located at the gravity center position of the hook taking hook.

The invention comprises a using method of the net lifting and guiding line hook, which comprises the following steps:

s1: fixing a fixed pulley on a fixed rope of a rear arm support;

s2: an up-down adjusting rope penetrates through the fixed pulley and is connected with the middle section rope ring and the ship board;

s3: the tail end rope ring and the small electric winch are connected through a horizontal adjusting rope;

s4: when the net is lifted, after the winches of the warp are finished, the vertical position of the hook head part is adjusted by manually releasing the vertical adjusting rope, meanwhile, the horizontal position of the hook head part is adjusted by releasing or retracting the horizontal adjusting rope through a small electric winch, and the hook head part is hooked to the starting end of the net lifting warp;

s5: after the hooking of the net hauling guide line is confirmed, starting a small electric winch to winch the horizontal adjusting rope, and pulling the net hauling guide line to the ship side;

s6: the net hauling cable is connected to the hoist winch and winches the net.

In the step S1, the fixed pulley is fixed on the rear arm support fixing rope and is located vertically above the net-raising guide line.

In step S1, the maximum load of the fixed sheave is 200kg or more, and the diameter of the sheave groove is larger than the diameter of the vertical adjustment rope.

The up-down adjusting rope and the horizontal adjusting rope in the steps S2 and S3 are PE ropes.

The maximum twisting tension of the small electric twisting machine in the step S4 is 200kg, and the maximum twisting speed is 0.5 m/S.

Advantageous effects

1. The invention can reduce the hauling operation which needs a plurality of persons (not less than 4 persons on each side) to be operated simultaneously when hooking the hauling lead rope connecting winch in the traditional operation mode of the cantilever trawl to 1 person on each side to finish the hauling operation independently.

2. By utilizing the technical scheme of the invention, the operator can easily hook the net-hauling lead wire only by standing on the deck without climbing up a dangerous arm support, and the operation is very safe.

3. This technical scheme need not to carry out a large amount of reequipments to the ship that adopts present traditional operation mode, only needs to increase a pair of fixed pulley and net haulage line hook and gets the hook, adds a pair of small-size electronic winch again, can be with lower cost guarantee operating personnel's safety, easy operation practices thrift the manpower.

Drawings

Figure 1 is a structure diagram of a hook of a net hauling lacing line hook,

wherein, 1-hook head part; 2-hook handle; 3-hook arc; 4-middle section rope loop; 5-end rope loop

FIG. 2 is a schematic view of the installation and connection of a hook of a net hauling lacing line, wherein a 6-arm support is arranged; 7-a fixed pulley; 8-adjusting the rope up and down; 9-horizontal adjusting rope; 10-rear arm frame fixing rope; 11-a small electric winch; 12-getting the net and guiding the net to hook.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

As shown in fig. 1, the net-lifting and drawing line hooking hook is made of phi 14 round steel, the hooking hook comprises a straight hook handle 2, a tail end rope loop 5 is arranged at the tail part of the hook handle 2, a middle section rope loop 4 is arranged at the middle section of the hook handle 2, an included angle between a hook head part 1 at the top end of the hook handle 2 and the hook handle 2 is 85 degrees, the hook handle 2 is slightly sharp, and the hook handle 2 is connected with the hook head part 1 through a hook arc 3. The length of the hook head part 1 is 200mm, the length of the hook handle 2 is 600mm, the hook arc 3 is in a semi-circle shape with the diameter of 100mm, and the diameters of the middle section rope loop 4 and the tail end rope loop 5 are both 100 mm.

The slightly pointed hook head part 1 is convenient for penetrating into the starting end of the net guide line when the head descending hook body is close to a vertical state, and then is folded and positioned through the hook arc 3 to prevent unhooking. The middle section and the tail end of the hooking hook are respectively welded with a steel rope loop, wherein the center of the middle section rope loop 4 is positioned at the gravity center of the hooking hook, and when the center of the middle section rope loop is used as a hanging point, the gravity at the two ends of the hooking hook can be kept balanced, and the hook position can be conveniently adjusted during operation.

The use method of the invention is specifically described below by taking a 600HP professional boom trawler as an example.

As shown in figure 2, the length of the outboard brackets 6 extending out of two sides of the 600HP special arm frame trawler is about 12m, the distance between the outer end of the outboard bracket and the water surface is about 2.5m, the side end of the boat is of a hinge structure, and the outboard bracket can be rotatably folded on the side of the fishing boat by a wharf. The front and rear boom fixing ropes 10 and the lifting rope are fixed to the gunwale during operation. The outer end of the arm support 6 is fixed with a dragging pulley, a towing rope is penetrated in the dragging pulley, a net tool is dragged during operation, and the net plate can discharge water after winching the dragging rope during net hauling and is hung on the dragging pulley. One end of the net hauling lead line is fixed on the inner side net plate, and the net hauling lead line is twisted and retracted to enable the sac net of the net to discharge water and collect the fish catch.

When the net lifting lead wire hooking and taking hook is used for taking the net lifting lead wire to be twisted and collected and net lifting, the following steps are required:

s1: fixing a fixed pulley 7 on a rear arm support fixing rope 10;

s2: an up-down adjusting rope 8 penetrates through a fixed pulley 7, and the middle section rope loop 4 and the ship board are connected through the up-down adjusting rope 8; s3: the tail end rope ring 5 and the small electric winch 11 are connected through a horizontal adjusting rope 9;

s4: when the net is lifted, after the winching of the warp is finished, the vertical position of the hook head part 1 is adjusted by manually releasing the vertical adjusting rope 8, and meanwhile, the horizontal position of the hook head part 1 is adjusted by releasing or winching the horizontal adjusting rope 9 through the small electric winch 11, and the hook head part 1 is hooked to the starting end of the net lifting warp in a matching way;

s5: after the hooking of the net lifting lead line is confirmed, starting a small electric winch 11 to winch the horizontal adjusting rope 9, and pulling the net lifting lead line to the ship side; s6: the net hauling cable is connected to the hoist winch and winches the net.

When the vertical adjusting rope 8 and the horizontal adjusting rope 9 are used for a 600HP professional arm support trawler, the vertical adjusting rope 8 and the horizontal adjusting rope 9 are PE ropes with the rope diameter phi 8, and the total length of the vertical adjusting rope 8 is about 18 m. The diameter of the rope groove of the fixed pulley 7 used in cooperation with the up-down adjusting rope 8 needs to be larger than the diameter of the up-down adjusting rope 8, and the maximum load reaches more than 200 kg. The fixed pulley 7 is fixed on the rear arm support fixing rope 10 in advance, and the specific position is vertically above the net-lifting guide line after entering water. The maximum twisting force of the small-sized electric twisting machine 11 described in step S4 is 200kg, and the maximum twisting speed is 0.5 m/S.

When the net is lifted, after the winches of the trawl ropes are finished, the upper adjusting rope 8 and the lower adjusting rope 8 are manually loosened to adjust the vertical position of a net lifting lead rope hooking hook 12, meanwhile, a small electric winch 11 is started to loosen or winch the horizontal adjusting rope 9 to adjust the horizontal position of the net lifting lead rope hook 12, the two adjusting ropes are matched with the horizontal adjusting rope 9 to hook the starting end of the net lifting lead rope tied on a special rope ring of the net plate, then the horizontal adjusting rope 9 is winched to pull the net lifting lead rope to the shipboard side, and the net lifting lead rope can be winched after the net lifting hand rope on the winch is connected.

Claims

1. The utility model provides a net-lifting and line-leading hook gets hook, its characterized in that, net-lifting and line-leading hook gets hook (12) is including straight hook handle (2), the afterbody of hook handle (2) is equipped with tail end becket (5), the middle section of hook handle (2) is equipped with middle section becket (4), top gib head portion (1) and hook handle (2) contained angle of hook handle (2) are 85, gib head portion (1) is slightly sharp shape, link to each other through hook circular arc (3) between hook handle (2) and gib head portion (1).

2. A net lifting leader hooking hook according to claim 1, characterized in that the net lifting leader hooking hook (12) is made entirely of round steel.

3. A pick-up hook for a net-lifting lead according to claim 1, characterized in that the mid-length loop (4) is located at the centre of gravity of the pick-up hook.

4. A method for using the net hauling lead hook according to any one of claims 1 to 3, characterized by comprising the following steps:

s1: fixing a fixed pulley (7) on a rear arm support fixing rope (10);

s2: an up-down adjusting rope (8) penetrates through a fixed pulley (7), and the middle section rope ring (4) and the ship board are connected through the up-down adjusting rope (8);

s3: the tail end rope ring (5) and the small electric winch (11) are connected through a horizontal adjusting rope (9);

s4: when the net is lifted, after the winching of the warp is finished, the vertical position of the hook head part (1) is adjusted by manually releasing the vertical adjusting rope (8), and meanwhile, the horizontal position of the hook head part (1) is adjusted by releasing or winding the horizontal adjusting rope (9) through the small electric winch (11), and the hook head part (1) is hooked to the starting end of the net lifting rope by matching the horizontal adjusting rope and the horizontal adjusting rope;

s5: after the hooking of the net lifting lead line is confirmed, a small electric winch (11) is started to winch and collect the horizontal adjusting rope (9), and the net lifting lead line is pulled to the side of the ship board;

s6: the net hauling cable is connected to the hoist winch and winches the net.

5. A hook using method according to claim 4, characterized in that in step S1, the fixed pulley (7) is fixed on the rear arm frame fixing rope (10) and is vertically above the hauling rope.

6. A hook using method according to claim 4, wherein the maximum load of the fixed sheave (7) in step S1 is 200kg or more, and the diameter of the sheave groove is larger than the diameter of the vertical adjustment rope (8).

7. A hook using method according to claim 4, wherein the up-down adjusting rope (8) and the horizontal adjusting rope (9) in steps S2 and S3 are PE ropes.

8. A hook using method according to claim 4, wherein the maximum twisting force of the small electric twisting machine (11) in step S4 is 200kg, and the maximum twisting speed is 0.5 m/S.