A device for capturing fish samples

Abstract

This invention discloses a device for catching fish samples, comprising a float, a flat plate rotatably connected to the float, a spring between the flat plate and the float to keep the float and the flat plate horizontal, a straight rod rotatably connected to the float, a first rope fixedly connected between two first rings, several second rings and a baffle fixedly connected to the straight rod, a U-shaped rod passing through the second rings, a connecting post fixedly connected to the straight rod, a baffle located at a first end, an elastic rope fixedly connected between the second end and the first connecting post, a second connecting post fixedly connected to the straight rod for connecting to a fishing net, a pull rope fixedly connected to the U-shaped rod, and a first rope detachably connected to the first end. This device can float with the water flow to the deep water area of ​​a river, facilitating the connection of a fixed gillnet. After moving to the deep water area, the U-shaped rod can be pulled by the pull rope to level the flat plate, thus placing one end of the fishing net in the deep water area, making it very convenient to use.

Description

Technical Field

[0001] This invention relates to the field of fishing apparatus technology, and in particular to an apparatus for catching fish samples. Background Technology

[0002] Fish sampling in rivers often involves using gillnets, which are long, narrow nets made of several rectangular meshes connected together. The principle behind this method is that the net is laid vertically in the fish's migration channels; when fish migrate or are startled and try to escape, they are caught in the mesh. However, gillnet fishing also has some problems. Deploying gillnets in deep water requires boats, which are inconvenient to carry, increasing both operational complexity and cost.

[0003] To address this problem, a device for catching fish samples is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a device for catching fish samples, so as to solve the problems existing in the prior art and facilitate the deployment of nets in deep water areas.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention provides an apparatus for catching fish samples, comprising:

[0006] A float is rotatably connected to a flat plate. A spring is installed between the flat plate and the float to keep the float and the flat plate horizontal. A straight rod is rotatably connected to the float. The float has several first positioning holes, and the straight rod has a second positioning hole. Positioning pins are inserted into the first and second positioning holes. Two first rings are fixedly connected to the flat plate, and a first rope is fixedly connected between the two first rings. Several second rings and a baffle are fixedly connected to the straight rod. A U-shaped rod passes through the second rings. The U-shaped rod has a first end and a second end. A connecting post is fixedly connected to the straight rod. The baffle is located at the first end. An elastic rope is fixedly connected between the second end and the connecting post. A second connecting post is fixedly connected to the straight rod for connecting to a fishing net. A pull rope is fixedly connected to the U-shaped rod. The first rope is detachably connected to the first end.

[0007] Preferably, a plurality of sleeves are fixedly connected to the float plate, a first rotating shaft is fixedly connected to the plate, the first rotating shaft passes through the sleeves and is rotatably disposed within the sleeves, and the spring is mounted on the first rotating shaft.

[0008] Preferably, the float plate has a first connecting hole, the straight rod has a second connecting hole, and a second rotating shaft passes through the first connecting hole and the second connecting hole, and the second rotating shaft is rotatably disposed within the first connecting hole and the second connecting hole.

[0009] Preferably, a third ring is fixedly connected to the second end, and the elastic rope is fixedly connected to the third ring.

[0010] Preferably, a top plate is fixedly connected to the connecting column.

[0011] Preferably, a top plate is fixedly connected to the second connecting column.

[0012] The present invention discloses the following technical effects: In this device, the float plate allows the device to float on the water surface. Adjusting the angle between the straight rod and the float plate can adjust the floating direction of the device in the water. During adjustment, the positioning pin is pulled out, then the straight rod is rotated, and then the positioning pin is inserted into the first positioning hole and the second positioning hole. The baffle is used to block the U-shaped rod. This device can flow with the water flow to the deep water area of ​​the river, which is convenient for connecting to the fixed gillnet. After moving to the position in the deep water area, the U-shaped rod can be pulled by the rope to flatten the flat plate, so that one end of the fishing net is in the deep water area, which is very convenient to use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the device used to collect fish samples.

[0015] Figure 2 for Figure 1 Enlarged view of point a in the middle;

[0016] Figure 3 This is a schematic diagram of the bottom of the device;

[0017] Figure 4 This is a schematic diagram showing the connection status of the fishing net to this device;

[0018] Among them, 1. float; 2. flat plate; 3. spring; 4. straight rod; 5. first positioning hole; 6. positioning pin; 7. first ring; 8. first rope; 9. second ring; 10. baffle; 11. U-shaped rod; 12. first end; 13. second end; 14. connecting post one; 15. elastic rope; 16. connecting post two; 17. pull rope; 18. sleeve; 19. first rotating shaft; 20. second rotating shaft; 21. third ring; 22. top plate one; 23. top plate two; 24. fishing net. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Reference Figure 1-4 The present invention provides an apparatus for catching fish samples, comprising:

[0022] A float plate 1 is rotatably connected to a plate 2. A spring 3 is installed between the plate 2 and the float plate 1 to keep the float plate 1 and the plate 2 horizontal. A straight rod 4 is rotatably connected to the float plate 1. The float plate 1 has several first positioning holes 5, and the straight rod 4 has second positioning holes. Positioning pins 6 are inserted into the first positioning holes 5 and the second positioning holes. Two first rings 7 are fixedly connected to the plate 2, and a first rope 8 is fixedly connected between the two first rings 7. Several second rings are fixedly connected to the straight rod 4. 9 and baffle 10, a U-shaped rod 11 is inserted inside the second ring 9, the U-shaped rod 11 has a first end 12 and a second end 13, a connecting post 14 is fixedly connected to the straight rod 4, the baffle 10 is located at the first end 12, an elastic rope 15 is fixedly connected between the second end 13 and the connecting post 14, a connecting post 26 is fixedly connected to the straight rod 4, the connecting post 26 is used to connect with the fishing net 24, a pull rope 17 is fixedly connected to the U-shaped rod 11, and the first rope 8 is detachably connected to the first end 12.

[0023] In this device, the float 1 allows the device to float on the water surface, and the straight rod 4 is preferably made of wood. This device requires two people to operate, and the method of use is as follows:

[0024] 1. Connect the fishing net 24 to the connecting post 2 16, and connect the pull rope 17 to the bend of the U-shaped pole 11;

[0025] 2. Rotate the plate 2 to make it vertical, pull the U-shaped rod 11 so that the first end 12 is disengaged from the second ring 9. At this time, the elastic rope 15 is stretched. Then, put the first rope 8 on the first end 12 of the U-shaped rod 11, release the U-shaped rod 11, and let the first end 12 pass into the second ring 9 that was just disengaged. In this way, the first rope 8 can be connected to the U-shaped rod 11.

[0026] 3. One worker holds one end of the rope 17 and puts the device into the water. Another worker holds a fishing net, stands in shallow water, and slowly releases the fishing net. Due to the buoyancy of the float 1, the device will float on the water surface. The flat plate 2 is in a vertical position. Under the action of the water flow, the flat plate 2 will make the device float further and drift to a deeper water position.

[0027] Fourth, after the fishing net is fully released, pull the rope 17 once. At this time, the first end 12 of the U-shaped rod 11 will come off from the adjacent second ring 9. Due to the elastic force of the spring 3, the first rope 8 will quickly detach from the first end 12, so that the plate 2 is in a horizontal state. Fix one end of the rope 17 to the shore. The fishing net 24 will be arc-shaped under the action of the water flow, thus completing the net hanging.

[0028] In this device, the angle between the straight rod 4 and the float 1 can be adjusted to adjust the floating direction of the device in the water. When adjusting, pull out the positioning pin 6, then rotate the straight rod 4, and then insert the positioning pin 6 into the first positioning hole 5 and the second positioning hole; the baffle 10 is used to block the U-shaped rod 11.

[0029] The scheme is further optimized by fixing several sleeves 18 on the float plate 1 and fixing a first rotating shaft 19 on the flat plate 2. The first rotating shaft 19 passes through the sleeves 18 and rotates within the sleeves 18. A spring 3 is installed on the first rotating shaft 19.

[0030] The rotational connection between the first rotating shaft 19 and the sleeve 18 enables the plate 2 and the floating plate 1 to be rotated.

[0031] The scheme is further optimized by providing a first connecting hole on the float plate 1 and a second connecting hole on the straight rod 4. A second rotating shaft 20 is inserted into the first and second connecting holes and is rotatably set within the first and second connecting holes.

[0032] The float 1 and the straight rod 4 are rotatably connected by the second rotating shaft 20.

[0033] In a further optimized design, a third ring 21 is fixedly connected to the second end 13, and an elastic rope 15 is fixedly connected to the third ring 21.

[0034] The third ring 21 is used to connect the elastic rope 15 and the U-shaped rod 11.

[0035] The design was further optimized by fixing a top plate 22 to the connecting column 14.

[0036] Top plate 22 prevents elastic rope 15 from coming off.

[0037] The design was further optimized by fixing a top plate 23 to the connecting column 2 16.

[0038] Top plate 23 prevents the connecting rope of the fishing net 24 from coming loose.

[0039] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0040] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A device for catching fish samples, characterized in that, include: A float (1) is rotatably connected to a flat plate (2). A spring (3) is provided between the flat plate (2) and the float (1). The spring (3) keeps the float (1) and the flat plate (2) in a horizontal state. A straight rod (4) is rotatably connected to the float (1). Several first positioning holes (5) are provided on the float (1). A second positioning hole is provided on the straight rod (4). Positioning pins (6) are inserted into the first positioning holes (5) and the second positioning holes. Two first rings (7) are fixedly connected to the flat plate (2). A first rope (8) is fixedly connected between the two first rings (7). Several second rings (8) are fixedly connected to the straight rod (4). The ring (9) and the baffle (10) are arranged in a ring (9). A U-shaped rod (11) is inserted inside the ring (9). The U-shaped rod (11) has a first end (12) and a second end (13). A connecting post (14) is fixedly connected to the straight rod (4). The baffle (10) is located at the first end (12). An elastic rope (15) is fixedly connected between the second end (13) and the connecting post (14). A connecting post (26) is fixedly connected to the straight rod (4). The connecting post (26) is used to connect to the fishing net (24). A pull rope (17) is fixedly connected to the U-shaped rod (11). The first rope (8) is detachably connected to the first end (12).

2. The apparatus for catching fish samples according to claim 1, characterized in that: A plurality of sleeves (18) are fixedly connected to the float (1), and a first rotating shaft (19) is fixedly connected to the flat plate (2). The first rotating shaft (19) passes through the sleeve (18) and is rotatably arranged inside the sleeve (18). The spring (3) is installed on the first rotating shaft (19).

3. The apparatus for catching fish samples according to claim 1, characterized in that: The float (1) has a first connecting hole, and the straight rod (4) has a second connecting hole. A second rotating shaft (20) passes through the first connecting hole and the second connecting hole, and the second rotating shaft (20) is rotatably arranged within the first connecting hole and the second connecting hole.

4. The apparatus for catching fish samples according to claim 1, characterized in that: A third ring (21) is fixedly connected to the second end (13), and the elastic rope (15) is fixedly connected to the third ring (21).

5. The apparatus for catching fish samples according to claim 1, characterized in that: A top plate (22) is fixedly connected to the connecting column (14).

6. The apparatus for catching fish samples according to claim 1, characterized in that: A top plate (23) is fixedly connected to the connecting column 2 (16).

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