A mid-upper small-sized marine organism investigation net

Abstract

The utility model relates to the field of net tool, and the utility model discloses a purpose in providing a kind of middle upper layer small marine biology investigation net tool, including net bag, mounting bracket and ship anchor;The net bag front side has capture mouth, the mounting bracket is fixed in the rim of capture mouth, two pieces of flow guide plate are arranged in the left and right interval in capture mouth, and the opposite end of two the flow guide plate is respectively fixed with the corresponding side of mounting bracket, and the opposite end of two the flow guide plate is inclined to the inside of net bag side arrangement;The ship anchor is located below mounting bracket, and it is connected with mounting bracket between several traction line bundles, and the mounting bracket is also connected with buoyancy device, so that net bag can be suspended in the upper layer of ocean. The utility model is simple in structure, convenient to use, can be stably suspended in the upper layer of collection water area, and has good collection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fishing nets, specifically a small marine life survey net for the upper and middle layers. Background Technology

[0002] The upper and middle layers of the ocean contain abundant small biological communities. These organisms not only occupy important links in the marine food chain but also have significant economic value. By collecting small marine organisms from the upper and middle layers in specific sea areas, we can obtain information on their distribution and habits, and provide basic data for the rational development of fishery resources and scientific research on the ecological environment.

[0003] Existing collection tools mainly include fish traps and fishing nets. Fish traps usually need to be placed on the seabed, making them unsuitable for surveying small organisms in the middle and upper layers of the ocean. Traditional fishing nets mostly rely on casting and hauling in the entire net, and they lack effective suspension and positioning structures, making it difficult to maintain a stable position in the middle and upper layers of the ocean, resulting in low collection efficiency and large errors in survey results. Utility Model Content

[0004] The purpose of this invention is to provide a small marine life survey net for the upper and middle layers of the water, which has a simple structure, is easy to use, can be stably suspended in the upper and middle layers of the water, and has good collection efficiency.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A small marine life survey net for the upper and middle layers includes a net bag, a mounting bracket, and an anchor; the net bag has a capture port on the front side, the mounting bracket is fixed to the edge of the capture port, and two guide plates are arranged at intervals on the left and right sides inside the capture port. The opposite ends of the two guide plates are fixed to the corresponding sides of the mounting bracket, and the opposite ends of the two guide plates are inclined towards the inside of the net bag.

[0007] The anchor is located below the mounting bracket, and several traction cables are connected between the anchor and the mounting bracket. The mounting bracket is also connected to a buoyancy device, which allows the net to float in the upper part of the ocean.

[0008] Compared with the prior art, the advantages of this utility model are:

[0009] 1. By combining the anchor, traction harness and buoyancy device, the net can remain stably suspended in the middle and upper water layers, achieving stable collection and greatly improving collection efficiency;

[0010] 2. By using the buoyancy ball, connecting rope, main rope and pull rope together, the tail of the net is kept in an upward position, which prevents the collected organisms from escaping and further improves the collection efficiency and accuracy. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of a small marine life survey net for the upper and middle layers of the present invention.

[0012] Labeling Explanation: 1 Net, 100 Capture Port, 2 Mounting Bracket, 3 Anchor, 4 Deflector, 51 Main Traction Rope, 52 Supporting Traction Rope, 61 Buoyancy Ball, 62 Connecting Rope, 631 Main Rope, 632 Side Rope, 641 Rope Loop, 642 Pull Rope. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0014] like Figure 1 The diagram shown is an embodiment of a small-scale marine life survey net for the upper and middle layers provided by this utility model:

[0015] A small marine life survey net for the upper and middle layers includes a net bag 1, a mounting bracket 2, and an anchor 3. The net bag 1 has a capture port 100 on its front side. The mounting bracket 2 is fixed to the edge of the capture port 100. Two guide plates 4 are arranged at intervals on the left and right sides inside the capture port 100. The opposite ends of the two guide plates 4 are fixed to the corresponding sides of the mounting bracket 2, and the opposite ends of the two guide plates 4 are inclined towards the inside of the net bag 1.

[0016] The anchor 3 is located below the mounting bracket 2, and several traction wires are connected between it and the mounting bracket 2. The mounting bracket 2 is also connected to a buoyancy device, so that the net 1 can be suspended in the upper layer of the ocean.

[0017] The traction harness is provided in two sets, and the two traction harnesses are respectively connected to the left and right sides of the mounting bracket 2. The traction harness includes a main traction rope 51 connected to the anchor 3 and several traction branch ropes 52. One end of the several traction branch ropes 52 is connected to the main traction rope 51, and the other end of the several traction branch ropes 52 is connected to the corresponding side of the mounting bracket 2 at intervals.

[0018] The traction rope 52 has a Y-shaped structure, and its forked ends are respectively connected to the corresponding side of the mounting bracket 2 and the end of the corresponding guide plate 4 facing the inside of the net bag 1.

[0019] The buoyancy device includes a buoyancy ball 61, a connecting rope 62, a first cable, and a second cable. The first cable is connected to the mounting bracket 2, the second cable is connected to the rear end of the net 1, and the connecting rope 62 connects the first cable, the second cable, and the buoyancy ball 61.

[0020] The first cable includes a main rope 631 and two side ropes 632. One end of the main rope 631 is connected to the connecting rope 62, and the other end is connected to the middle of the bottom side of the mounting bracket 2. One end of each of the two side ropes 632 is connected to the main rope 631, and the other ends of the two side ropes 632 are respectively connected to the top left and right sides of the mounting bracket 2.

[0021] The second cable includes two rope loops 641, which are spaced apart and fitted onto the rear end of the net bag 1. Each rope loop 641 is provided with a pull rope 642 that is connected to the connecting rope 62.

[0022] The buoyancy ball 61 is installed in the middle of the connecting rope 62, and the main rope 631 and the pull rope 642 are respectively connected to the two ends of the connecting rope 62, and the length of the main rope 631 is longer than that of the pull rope 642.

[0023] The working principle of this utility model is roughly as follows:

[0024] Anchor 3 sinks to the bottom, preventing net 1 from drifting with the current via the traction harness. Simultaneously, buoyancy ball 61 provides upward buoyancy to the mounting bracket 2 and net 1 via connecting rope 62, main rope 631, side rope 632, and pull rope 642, allowing net 1 to suspend in the upper and middle layers of water. The mounting bracket 2 provides support, keeping the capture opening 100 open to facilitate the entry of water and organisms. The guide plate 4 directs the water flow into the net 1, allowing it to fully expand along its length under the influence of the water flow. Because buoyancy ball 61 is located in the middle of connecting rope 62, and the main rope 631 is longer than the pull rope 642, the tail of net 1 is positioned upwards relative to the capture opening 100, effectively preventing the escape of collected organisms.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A small-scale marine life survey net for the middle and upper layers, characterized in that... The system includes a net (1), a mounting bracket (2), and an anchor (3). The net (1) has a capture port (100) on its front side. The mounting bracket (2) is fixed to the edge of the capture port (100). Two guide plates (4) are arranged at intervals on the left and right sides inside the capture port (100). The opposite ends of the two guide plates (4) are fixed to the corresponding sides of the mounting bracket (2), and the opposite ends of the two guide plates (4) are inclined towards the inside of the net (1). The anchor (3) is located below the mounting bracket (2), and several traction harnesses are connected between it and the mounting bracket (2). The mounting bracket (2) is also connected to a buoyancy device, so that the net (1) can be suspended in the upper layer of the ocean.

2. The small-scale marine life survey net for the middle and upper layers according to claim 1, characterized in that: The traction harness is provided in two sets, and the two traction harnesses are respectively connected to the left and right sides of the mounting bracket (2). The traction harness includes a main traction rope (51) connected to the anchor (3) and several traction branch ropes (52). One end of several traction branch ropes (52) is connected to the main traction rope (51), and the other end of several traction branch ropes (52) is connected to the corresponding side of the mounting bracket (2) at intervals.

3. The small-scale marine life survey net for the middle and upper layers according to claim 2, characterized in that: The traction rope (52) has a Y-shaped structure, and its forked ends are respectively connected to the corresponding side of the mounting bracket (2) and the end of the corresponding guide plate (4) facing the inside of the net bag (1).

4. The small-scale marine life survey net for the middle and upper layers according to claim 1, characterized in that: The buoyancy device includes a buoyancy ball (61), a connecting rope (62), a first cable and a second cable. The first cable is connected to the mounting bracket (2), the second cable is connected to the rear end of the net (1), and the connecting rope (62) is connected between the first cable, the second cable and the buoyancy ball (61).

5. The small-scale marine life survey net for the middle and upper layers according to claim 4, characterized in that: The first cable includes a main rope (631) and two side ropes (632). One end of the main rope (631) is connected to the connecting rope (62), and the other end is connected to the middle of the bottom side of the mounting bracket (2). One end of each of the two side ropes (632) is connected to the main rope (631), and the other end of each side rope (632) is connected to the top left and right sides of the mounting bracket (2).

6. The small-scale marine life survey net for the middle and upper layers according to claim 5, characterized in that: The second cable includes two loops (641), which are spaced apart and fitted onto the rear end of the net bag (1). The loops (641) are provided with a pull rope (642) connected to the connecting rope (62).

7. The small-scale marine life survey net for the middle and upper layers according to claim 6, characterized in that: The buoyancy ball (61) is installed in the middle of the connecting rope (62), the main rope (631) and the pull rope (642) are respectively connected to the two ends of the connecting rope (62), and the length of the main rope (631) is longer than that of the pull rope (642).

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