Plankton sampling trawl

Abstract

The utility model relates to the technical field of sampling trawl nets, in particular to a plankton sampling trawl net which comprises a body and an auxiliary mechanism, the auxiliary mechanism is arranged on the body, the auxiliary mechanism comprises a frame, a long rod, a limiting shell, a connecting block and a bolt, one end of the long rod is connected with the frame, the frame is in contact with the bottom of the body, and the limiting shell is connected with the connecting block. The limiting shell is arranged on the body, the other end of the long rod penetrates through the limiting shell, one end of the connecting block is connected with the top of the body, the other end of the connecting block is in contact with the long rod, the bolt is in threaded connection with the connecting block and the long rod, a connecting rope is arranged on the connecting block, and the connecting rope is connected with the connecting rod. The plankton sampling trawl net solves the problem that an existing trawl net is prone to twining.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampling trawl technical field, concretely is a plankton sampling trawl. BACKGROUND

[0002] It is known that plankton sampling trawl is a special tool for collecting plankton (such as phytoplankton and zooplankton) in water, and various tiny aquatic organisms are captured and collected by dragging in water.

[0003] But the existing plankton sampling trawl is dragged in water, and the entanglement condition is easy to occur, and the subsequent staff still needs to untie the entangled plankton sampling trawl, thereby a large amount of time will be wasted. UTILITY MODEL CONTENT

[0004] (I) the technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides a plankton sampling trawl.

[0006] (II) technical scheme

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a plankton sampling trawl, including body and auxiliary mechanism, the auxiliary mechanism is arranged on the body, the auxiliary mechanism includes frame, long rod, limit shell, connecting block and bolt, one end of the long rod is connected with the frame, the frame is in contact with the bottom of the body, the limit shell is arranged on the body, the other end of the long rod passes through the limit shell, one end of the connecting block is connected with the top of the body, the other end of the connecting block is in contact with the long rod, the bolt is screwed the connecting block with the long rod, and the connecting block is provided with connecting rope.

[0008] In order to improve stability, the utility model improves that the limit shell is provided with a plurality of.

[0009] In order to improve the strength of connecting rope, the utility model improves that the connecting rope adopts nylon material.

[0010] In order to improve the effect of connection, the utility model improves that the connecting rope is provided with a plurality of, and a plurality of connecting ropes are fixedly connected with the connecting block.

[0011] In order to prevent the rusting of bolt after long time use, the utility model improves that the bolt adopts stainless steel material.

[0012] In order to facilitate the long rod to pass through the limit shell, the utility model improves that the long rod is matched with the limit shell.

[0013] (III) beneficial effects

[0014] Compared with the prior art, the plankton sampling trawl has the following advantages

[0015] Beneficial effects:

[0016] The plankton sampling trawl can avoid the entanglement of the body during the dragging process. After the body is used, the bolt is unscrewed by using an external screwdriver, so that the bolt is separated from the connecting block and the long rod. Then, the frame is pulled to move the long rod, so that the long rod is separated from the limiting shell. Then, the auxiliary mechanism can be separated from the body. The body can be folded and stored. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the utility model;

[0018] Figure 2 is a structural schematic view of the utility model Figure 1 is a partial enlarged structural schematic view of A in the utility model;

[0019] Figure 3 is a structural schematic view of the utility model from the shaft side;

[0020] Figure 4 is a front view of the utility model; Figure 1

[0021] In the drawing: 1, body; 2, auxiliary mechanism; 3, frame; 4, long rod; 5, limiting shell; 6, connecting block; 7, bolt; 8, connecting rope. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-4 A plankton sampling trawl, comprising a body 1 and an auxiliary mechanism 2, the auxiliary mechanism 2 is arranged on the body 1, the auxiliary mechanism 2 comprises a frame 3, a long rod 4, a limiting shell 5, a connecting block 6 and a bolt 7, one end of the long rod 4 is connected with the frame 3, the frame 3 is in contact with the bottom of the body 1, the limiting shell 5 is arranged on the body 1, the other end of the long rod 4 passes through the limiting shell 5, one end of the connecting block 6 is connected with the top of the body 1, the other end of the connecting block 6 is in contact with the long rod 4, the bolt 7 is threadedly connected with the connecting block 6 and the long rod 4, and the connecting block 6 is provided with a connecting rope 8.​

[0024] In use, the staff holds the connecting rope 8 with hands, puts the body 1 into the river water, drags the body 1 in the river water by pulling the connecting rope 8, and the plankton in the river water is collected on the body 1; the body 1 is provided with a plurality of meshes, the size of the meshes is very small, and the plankton can be collected; the auxiliary mechanism 2 can avoid the body 1 from being wound together in the process of being dragged again; after collection, the body 1 can be pulled up; the body 1 in the paper is a conventional plankton sampling drag net on the market, which is not specifically described here; when the body 1 is used, the bolt 7 is unscrewed by using an external screwdriver, the bolt 7 is separated from the connecting block 6 and the long rod 4, the frame 3 is pulled to drive the long rod 4 to move, the long rod 4 is separated from the limiting shell 5, then the auxiliary mechanism 2 can be separated from the body 1, and the body 1 can be folded and stored.

[0025] In order to improve the stability, the limiting shell 5 is provided with a plurality of limiting shells in the embodiment.

[0026] The connecting rope 8 can be made of any material; in order to improve the strength of the connecting rope 8, the connecting rope 8 is made of nylon material in the embodiment.

[0027] In order to improve the connecting effect, the connecting rope 8 is provided with a plurality of connecting ropes, and the plurality of connecting ropes 8 are fixedly connected with the connecting block 6.

[0028] The bolt 7 is prone to rust after long-term use, and in order to solve this problem, the bolt 7 is made of stainless steel material in the embodiment.

[0029] In order to facilitate the long rod 4 to extend into the limiting shell 5, the long rod 4 is matched with the limiting shell 5 in the embodiment.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A plankton sampling dredge comprising a body (1) and an auxiliary mechanism (2), characterised in that: The auxiliary mechanism (2) is arranged on the body (1), the auxiliary mechanism (2) includes a frame (3), a long rod (4), a limiting shell (5), a connecting block (6) and a bolt (7), one end of the long rod (4) is connected with the frame (3), the frame (3) is in contact with the bottom of the body (1), the limiting shell (5) is arranged on the body (1), the other end of the long rod (4) passes through the limiting shell (5), one end of the connecting block (6) is connected with the top of the body (1), the other end of the connecting block (6) is in contact with the long rod (4), the bolt (7) is screwed with the connecting block (6) and the long rod (4), and the connecting block (6) is provided with a connecting rope (8).

2. A plankton sampling trawl according to claim 1, characterised in that: The limiting shell (5) is provided with a plurality of limiting shells.

3. A plankton sampling trawl according to claim 2, characterised in that: The connecting rope (8) is made of nylon material.

4. A plankton sampling trawl according to claim 3, characterised in that: The connecting rope (8) is provided with a plurality of connecting ropes (8), and the plurality of connecting ropes (8) are fixedly connected with the connecting block (6).

5. A plankton sampling trawl according to claim 4, characterised in that: The bolt (7) is made of stainless steel material.

6. A plankton sampling trawl according to claim 5, characterised in that: The long rod (4) is matched with the limiting shell (5).

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