Lamplight trapping device for fish larva research

Abstract

The utility model discloses a lamplight trapping device for fish larva research, which comprises a fixed insertion rod, a fishing pipe is movably connected in the fixed insertion rod, and a fixed rod is movably connected in the fishing pipe; the fixed insertion rod is inserted into the culture pond; the fishing pipe is connected to the interior of the fixed insertion rod, and the juvenile fish meeting the specification can enter the fishing pipe through the fixed insertion rod; the fixing rod is connected to the interior of the fishing pipe, and the fixing rod is used for preventing the juvenile fish from swimming out and trapping the juvenile fish through lamplight. The first annular tempered glass and the second annular tempered glass allow light of the lamp to be transmitted out. And small fishes enter the pipe body through the notch and the strip-shaped groove. And the strip-shaped groove prevents larger fishes from entering. Then, the small fishes enter the pipe body through the escape-proof funnel, so that trapping is realized. A user can take out the small fishes only by screwing out the pipe body, so that the small fish screening device has the advantage that the small fishes meeting the specification can be effectively screened out.

Description

Technical Field

[0001] The utility model relates to the technical field of fry trapping devices, in particular to a light trapping device for fry and fry research. Background Art

[0002] In the prior art, trapping devices are often used to capture and screen small fishes during the research of fry and juvenile fishes, so as to conduct further observation and experiments. However, trapping devices currently available on the market have some problems during use, which affect the efficiency and effect of the research.

[0003] However, existing trapping devices mostly use fishing cages to catch fish, which makes it difficult to effectively screen the size of the captured small fish, and requires manual classification at a later time, resulting in unsatisfactory capture results and unable to meet research needs.

[0004] Based on this, those skilled in the art have proposed a light trapping device for fish larvae and juveniles research. Utility Model Content

[0005] The utility model discloses a light trapping device for fish larvae and juveniles research, aiming to solve the technical problems in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A light trapping device for fish larvae and juveniles research comprises a fixed rod, a fishing tube is movably connected inside the fixed rod, and a fixed rod is movably connected inside the fishing tube;

[0008] The fixed rod is inserted into the culture pond;

[0009] The fishing tube is connected to the inside of the fixed rod, and the juvenile fish that meet the specifications can enter the inside of the fishing tube through the fixed rod;

[0010] The fixing rod is connected to the inside of the fishing tube, and is used to prevent the young fish from swimming out and can be used for trapping through light.

[0011] Insert the fixed rod into the breeding pond, then put the fishing tube into the fixed rod, and then put the fixed rod into the fishing tube.

[0012] In a preferred embodiment, the fixed plug rod comprises a rod body, two first annular tempered glasses are symmetrically fixedly connected to the rod body, a notch is provided on the rod body and above the first annular tempered glass, a cone is provided at the bottom of the rod body, a first internal thread is provided inside the rod body, two first handles are symmetrically fixedly connected to the outside of the rod body and above the notch, and the fishing tube comprises a tube body, two second annular tempered glasses are symmetrically fixedly connected to the tube body, grooves are equidistantly provided on the tube body and above the second annular tempered glass, and the outside of the tube body and above the second annular tempered glass are A first external thread is provided at the bottom, and two second handles are symmetrically fixedly connected to the outside of the tube body and above the groove, a second internal thread is provided inside the tube body, a second external thread is provided on the through pipe, and two connecting rods are symmetrically fixedly connected to the bottom of the through pipe, an anti-escape funnel is fixedly connected between the bottoms of the two connecting rods, a bent rod is fixedly connected to the bottom of the anti-escape funnel, a lamp is fixedly connected to the bent rod, and two third handles are symmetrically fixedly connected on the through pipe and above the second external thread, the second external thread is used in conjunction with the second internal thread, and the first internal thread is used in conjunction with the first external thread.

[0013] The first ring-shaped tempered glass and the second ring-shaped tempered glass can ensure that the light of the lamp can pass through, and the small fish can first pass through the notch and then enter the tube body through the strip groove. The design of the strip groove can prevent larger fish from entering. After that, the small fish enters the interior of the tube body through the anti-escape funnel, thus forming a trapping effect.

[0014] The light trapping device for larvae and juvenile fish research provided by the utility model has the following advantages:

[0015] 1. The first annular tempered glass and the second annular tempered glass allow the light of the lamp to penetrate. Small fish enter the tube body through the notch and the groove. The groove prevents larger fish from entering. Then, the small fish enters the tube body through the anti-escape funnel, thereby achieving trapping. The user only needs to twist out the tube body to take out the small fish. The advantage of this setting is that it can effectively screen out small fish that meet the specifications.

[0016] 2. Insert the fixed rod into the pond, connect and fix the first external thread of the pipe body with the first internal thread of the rod body, and then connect the second external thread of the through pipe with the second internal thread of the pipe body to complete the installation. The advantages of this application are easy installation and simple disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model discloses an isometric view of a light trapping device for fish larvae and juveniles research.

[0018] Figure 2The utility model discloses a cross-sectional isometric view of a fixed insertion rod of a light trapping device for fish larvae and juveniles research.

[0019] Figure 3 The utility model discloses an isometric view of a fishing tube of a light trapping device for fish larvae and juveniles research.

[0020] Figure 4 The utility model discloses a cross-sectional isometric view of a fishing tube of a light trapping device for fish larvae and juveniles research.

[0021] Figure 5 The utility model discloses an isometric view of a fixing rod of a light trapping device for fish larvae and juveniles research.

[0022] In the attached drawings: 1. fixed rod; 11. rod body; 12. first annular tempered glass; 13. notch; 14. cone; 15. first internal thread; 16. first handle; 2. fishing tube; 21. tube body; 22. second annular tempered glass; 23. groove; 24. first external thread; 25. second handle; 26. second internal thread; 3. fixed rod; 31. through pipe; 32. second external thread; 33. connecting rod; 34. anti-escape funnel; 35. bent rod; 36. light; 37. third handle. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application usually described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0024] The utility model discloses a light trapping device for researching larvae and juvenile fish.

[0025] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a light trapping device for fish larvae and juveniles research comprises a fixed rod 1, a fishing tube 2 is movably connected inside the fixed rod 1, and a fixed rod 3 is movably connected inside the fishing tube 2;

[0026] The fixed rod 1 is inserted into the culture pond;

[0027] The fishing tube 2 is connected to the inside of the fixed rod 1, and the juvenile fish that meet the specifications can enter the inside of the fishing tube 2 through the fixed rod 1;

[0028] The fixing rod 3 is connected to the inside of the fishing tube 2. The fixing rod 3 is used to prevent the juvenile fish from swimming out and can be used for trapping by light:

[0029] In this embodiment, the fixed rod 1 is inserted into the breeding pond, and then the fishing tube 2 is placed into the fixed rod 1, and then the fixed rod 3 is placed into the fishing tube 2.

[0030] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment, the fixed plug rod 1 includes a rod body 11, two first annular tempered glasses 12 are symmetrically fixedly connected to the rod body 11, a notch 13 is provided on the rod body 11 and above the first annular tempered glass 12, a cone 14 is provided at the bottom of the rod body 11, a first internal thread 15 is provided inside the rod body 11, and two first handles 16 are symmetrically fixedly connected to the outside of the rod body 11 and above the notch 13, and the fishing tube 2 includes a tube body 21, two second annular tempered glasses 22 are symmetrically fixedly connected to the tube body 21, strip grooves 23 are equidistantly provided on the tube body 21 and above the second annular tempered glass 22, and a first handle 16 is provided on the outside of the tube body 21 and below the second annular tempered glass 22. There is a first external thread 24, two second handles 25 are symmetrically fixedly connected to the outside of the tube body 21 and located above the groove 23, and a second internal thread 26 is arranged inside the tube body 21. The fixing rod 3 includes a through pipe 31, and a second external thread 32 is arranged on the through pipe 31. Two connecting rods 33 are symmetrically fixedly connected to the bottom of the through pipe 31, and an anti-escape funnel 34 is fixedly connected between the bottoms of the two connecting rods 33. A bent rod 35 is fixedly connected to the bottom of the anti-escape funnel 34, and a lamp 36 is fixedly connected to the bent rod 35. Two third handles 37 are symmetrically fixedly connected on the through pipe 31 and located above the second external thread 32. The second external thread 32 is used in conjunction with the second internal thread 26, and the first internal thread 15 is used in conjunction with the first external thread 24;

[0031] In this embodiment: the first annular tempered glass 12 and the second annular tempered glass 22 can ensure that the light of the lamp 36 can pass through, and the small fish can first pass through the notch 13 and then enter the tube body 21 through the groove 23. The design of the groove 23 can prevent larger fish from entering. After that, the small fish enters the interior of the tube body 21 through the anti-escape funnel 34, thus forming a trapping effect.

[0032] Working principle: The installation process of the device is as follows: first, the fixed plug rod 1 is inserted into the pond, and then the first external thread 24 on the pipe body 21 is connected with the first internal thread 15 in the rod body 11, so that the pipe body 21 can be fixed, and then the second external thread 32 is connected with the second internal thread 26, so that the through pipe 31 can be connected with the pipe body 21, thereby completing the installation work. The advantages of this arrangement are that the installation is convenient and the disassembly process is simple;

[0033] The operating principle of the device is as follows: the first annular tempered glass 12 and the second annular tempered glass 22 can ensure that the light of the lamp 36 can pass through, and the small fish can first pass through the notch 13 and then enter the tube body 21 through the strip groove 23. The design of the strip groove 23 can prevent larger fish from entering. After that, the small fish enters the interior of the tube body 21 through the anti-escape funnel 34, so that a trapping effect can be formed, and the user can directly complete the removal work by twisting out the tube body 21.

[0034] It should be noted that the lamp in this device needs to be connected to a power source. Taking into account the different ways of use, this application does not make detailed restrictions on the power connection of the lamp, and the lamp in this application needs to have a waterproof function. Since these are mature existing technologies, they will not be elaborated in this application.

[0035] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A light trapping device for fish larvae and juveniles research, comprising a fixed rod (1), characterized in that: The interior of the fixed insertion rod (1) is movably connected to a fishing tube (2), and the interior of the fishing tube (2) is movably connected to a fixed rod (3); The fixed plug rod (1) is inserted into the culture pond; The fishing tube (2) is connected to the interior of the fixed plug rod (1), and juvenile fish meeting the specifications can enter the interior of the fishing tube (2) through the fixed plug rod (1); The fixing rod (3) is connected to the inside of the fishing tube (2), and the fixing rod (3) is used to prevent the young fish from swimming out and can be used for trapping by means of light.

2. The light trapping device for fish larvae and juveniles research according to claim 1, characterized in that: The fixed plug rod (1) comprises a rod body (11), two first annular tempered glasses (12) are symmetrically fixedly connected to the rod body (11), a notch (13) is provided on the rod body (11) and above the first annular tempered glasses (12), a cone (14) is provided at the bottom of the rod body (11), a first internal thread (15) is provided inside the rod body (11), and two first handles (16) are symmetrically fixedly connected to the outside of the rod body (11) and above the notch (13).

3. The light trapping device for fish larvae and juveniles research according to claim 2, characterized in that: The fishing tube (2) comprises a tube body (21), two second annular tempered glasses (22) are symmetrically fixedly connected to the tube body (21), grooves (23) are equidistantly provided on the tube body (21) and above the second annular tempered glasses (22), a first external thread (24) is provided on the outside of the tube body (21) and below the second annular tempered glasses (22), two second handles (25) are symmetrically fixedly connected to the outside of the tube body (21) and above the grooves (23), and a second internal thread (26) is provided inside the tube body (21).

4. The light trapping device for fish larvae and juveniles research according to claim 3, characterized in that: The fixing rod (3) comprises a through pipe (31), the through pipe (31) is provided with a second external thread (32), two connecting rods (33) are symmetrically fixedly connected to the bottom of the through pipe (31), an anti-escape funnel (34) is fixedly connected between the bottoms of the two connecting rods (33), a bent rod (35) is fixedly connected to the bottom of the anti-escape funnel (34), a lamp (36) is fixedly connected to the bent rod (35), and two third handles (37) are symmetrically fixedly connected to the through pipe (31) and located above the second external thread (32).

5. The light trapping device for fish larvae and juveniles research according to claim 4, characterized in that: The second external thread (32) is used in conjunction with the second internal thread (26), and the first internal thread (15) is used in conjunction with the first external thread (24).

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