CN106900667B - Environmental agitation device for scallop catching - Google Patents

Abstract

The invention discloses an ecological disturbing device for scallop fishing, which is characterized in that the device comprises a frame body, and rollers are rotatably supported at both ends of the frame body through support shafts, and the outer surfaces of the rollers are evenly distributed. There are a plurality of tooth-shaped protrusions distributed, a plurality of toggle blocks evenly distributed on the circumference are arranged on the inner surface of the roller, a bracket is arranged in the middle of the frame body, and two sets of disturbing mechanisms are symmetrically arranged on the frame body. The disturbing mechanism includes a swinging plate that is rotatably connected under the frame body through a rotating shaft. One end of the swinging plate is matched with the toggle block, and the other end of the swinging plate is connected to the bracket through a return spring. There are also a plurality of rubber alarm plates evenly distributed at the bottom of the device, and the rubber alarm plates are connected with the swinging plate through buffer springs, and an included angle ranging from 20-40° is formed between the rubber alarming plate and the swinging plate.

Description

Ecological Disturbance Device for Scallop Fishing

technical field

The invention relates to an auxiliary device for scallop fishing, in particular to an ecological disturbing device for scallop fishing.

Background technique

Scallop is the representative name of the bivalve mollusk of the genus Scallop and is one of the important marine fishery resources. Since scallops are bottom-dwelling marine products, they need to be disturbed first when fishing for scallops. Traditional disturbing methods and disturbing devices will cause serious damage to the seabed, such as dragging steel cables or iron rods inserted into the seabed. Scramble the scallops; drag the chain to scrape the scallops on the seafloor. While disturbing the scallops, these devices will also uproot the vegetation on the seabed, leaving ravines that are difficult to restore for a long time, and "turning the ground" on the seabed, seriously damaging the ecological environment of the seabed. It is precisely because of these "destructive" fishing methods that MSC refused to certify the British scallop fishing industry in 2012, which restricted the development of the scallop fishing industry. Therefore, there is a need for a method or apparatus that can solve the above-mentioned problems.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned shortcomings of the prior art, the present invention proposes an ecological disturbing device for scallop fishing with simple structure and ingenious design, which can disturb the scallop without causing damage to the seabed and protect the marine environment.

The technical solution of the present invention is: an ecological disturbing device for scallop fishing, characterized in that the device comprises a frame body 1, and rollers 3 are rotatably supported at both ends of the frame body 1 through support shafts 2 , and a plurality of tooth-like protrusions 4 are evenly distributed on the outer surface of the roller 3, a plurality of toggle blocks 5 evenly distributed on the circumference are arranged on the inner surface of the roller 3, and a swinging block 5 is arranged in the middle of the frame body 1 The plate limit bracket 6 is symmetrically provided with two sets of disturbing mechanisms on the frame body 1. The disturbing mechanism includes a swinging plate 8 that is rotatably connected under the frame body 1 through a rotating shaft 7. One end of the swinging plate 8 is connected to the The above-mentioned toggle block 5 is matched, and the other end of the swing plate 8 is connected with the swing plate limit bracket 6 through the return spring 9, and a plurality of rubber disturbing plates 10 are evenly distributed at the bottom of the swinging plate 8, and the rubber disturbing plate 10 is connected with the swinging plate 8 through the buffer spring 11, the bottom end of the rubber disturbing plate 10 is 1-5 cm higher than the bottom end of the roller 3, and the rubber disturbing plate 10 and the swinging plate 8 form a range of 20-40°. angle.

Compared with the prior art, the present invention has the following advantages:

The ecological disturbing device for scallop fishing in this structural form has the advantages of simple structure, ingenious design and reasonable layout. Aiming at various problems existing in the working process of the traditional scallop disturbing device, a special structure is designed. It can use the toggle block on the inner side of the roller to toggle the swing plate to swing while traveling on the seabed, and at the same time combine the return spring to ensure that the swing plate can perform continuous reciprocating swinging action, and utilize multiple disturbances below the swing plate. The plate stirs the sea water and disturbs the scallops. After the scallops are disturbed, they will fly from the bottom of the sea, so that the net behind the device can capture the scallops. Because the device is made of rubber material, the disturbing plates also pass through the buffer springs. It is connected with the swinging board, so the obstacles encountered during the movement will not be forcibly scraped from the seabed. While effectively disturbing the scallops, it can also protect the seabed ecological environment as much as possible. At the same time, its production process is simple and the production cost It is cheap, so it can be said that it has many advantages, and is especially suitable for promotion and application in this field, and its market prospect is very broad.

Description of drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed ways

Specific embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in Figure 1: an ecological disturbing device for scallop fishing, which includes a frame body 1 as a foundation, and a roller 3 is rotatably supported at both ends of the frame body 1 through a support shaft 2, and is supported at both ends of the frame body 1. A plurality of tooth-like protrusions 4 are evenly distributed on the outer circumference of the roller 3, and a plurality of toggle blocks 5 are arranged on the inner side of the roller 3. 1 is also symmetrically provided with two sets of disturbing mechanisms, the frame body 1 between the two sets of disturbing mechanisms (that is, the middle part of the frame body 1) is also provided with a swing plate limit bracket 6, and the disturbing mechanism includes a rotating shaft. 7. Rotate the swinging plate 8 connected under the frame body 1. One end of the swinging plate 8 is matched with the above-mentioned toggle block 5, that is, the toggle block 5 can toggle the swinging plate 8, and the other end of the swinging plate 8 is reset by reset. The spring 9 is connected with the swinging plate limit bracket 6, and a plurality of rubber disturbing plates 10 are evenly distributed at the bottom of the swinging plate 8, and each rubber disturbing plate 10 is connected with the swinging plate 8 through the buffer spring 11, where the rubber disturbing plate 10 is located. There is an included angle between the plane where the swing plate 8 is located, and the angle range of the included angle is 20-40°, and the optimum angle value is 30°.

The working process of the ecological disturbing device for scallop fishing according to the embodiment of the present invention is as follows: Ann.Rev.Neurosci's research on scallop eyes in 1992 showed that there are as many as 100 simple "eyes" on the edge of the scallop shell, which contain The retina, which is adapted to dark objects, can detect creatures with changing movements, while scallops "eyes" fly quickly when they sense danger. In view of this feature of scallops, the device is placed in the sea area where fishing needs to be carried out, and the frame body 1 of the device is pulled by a trawler, so that the device travels on the seabed, and a fishing net is set behind the device for fishing for disturbed scallops;

The device is supported by the rollers 3 at both ends. Since the outer circumference of the roller 3 is provided with a plurality of tooth-like protrusions 4, the roller 3 can rotate normally even on a soft seabed. The inner toggle block 5 will also rotate accordingly, and toggle the swinging plate 8 in contact with it. Since the middle of the swinging plate 8 is connected to the frame body 1 through the rotating shaft 7, the swinging plate 8 will take the rotating shaft 7 as the axis. When swinging, when the end of the swinging plate 8 is out of contact with the toggle block 5, under the action of the return spring 9, the swinging plate 8 will swing in the opposite direction until it returns to the initial position; in this way, when the roller 3 continues to roll, It will drive the swinging plate 8 to do a reciprocating swinging action;

During the reciprocating swing of the oscillating plate 8, the multiple rubber disturbing plates 10 below it will also oscillate back and forth. These rubber disturbing plates 10 agitate the sea water and change the living environment of the scallops in a short time. After the scallops perceive danger, they swim The scallops that are not separated from the seabed will be scraped up under the action of multiple rubber disturbing plates 10, so the device can disturb as many scallops as possible. There is a certain angle between 8, this design can keep the scallops within the fishing range of the fishing net behind the device as much as possible to ensure the fishing efficiency;

That is to say, the device disturbs the scallops from the bottom of the sea in the front, and the fishing nets at the back will catch these scallops into the net;

At the same time, since the top of the rubber disturbing plate 10 is the buffer spring 11 , even if the rubber disturbing plate 10 encounters an obstacle in the process of traveling, the buffering spring 11 will be bent to a certain extent, so as to ensure that the rubber disturbing plate 10 will not be forcibly moved. Obstacles are removed, so as to achieve the purpose of protecting the seabed ecological environment.

Claims (1)

1. An ecological disturbing device for scallop fishing, characterized in that: the device comprises a frame body (1), and both ends of the frame body (1) are rotatably supported with rollers ( 3), and a plurality of tooth-like protrusions (4) are evenly distributed on the outer surface of the roller (3), and a plurality of toggle blocks (5) evenly distributed on the circumference are arranged on the inner surface of the roller (3). , a swing plate limit bracket (6) is arranged in the middle of the frame body (1), and two sets of disturbing mechanisms are symmetrically arranged on the frame body (1). A swinging plate (8) under the frame body (1), one end of the swinging plate (8) is matched with the toggle block (5), and the other end of the swinging plate (8) is passed through the return spring (9) Connected to the limit bracket (6) of the swinging plate, a plurality of rubber disturbing plates (10) are evenly distributed at the bottom of the swinging plate (8), and the rubber disturbing plate (10) is connected to the swinging plate (8) through the buffer spring (11). ) connected, the bottom end of the rubber screeching plate (10) is 1-5 cm higher than the bottom end of the roller (3), and the rubber screeching plate (10) and the swinging plate (8) form a 20-40° angle angle.