Bottom fish oviposition device

Abstract

The utility model discloses a bottom layer fish oviposition device which comprises a fish nest, a floating piece is connected to the fish nest, and the floating piece can drive the fish nest to float upwards to the water surface under the action of buoyancy in a water body; a plurality of through holes are formed in the side wall of the fish nest, fishes can enter and exit from the fish nest through the through holes, and plugging pieces are arranged in the through holes and can close or open the through holes. According to the utility model, the fish nest is driven to gradually float upwards by utilizing the gradually increasing buoyancy effect of water on the fish nest, so that the disturbance to the interior of the fish nest in the floating process of the fish nest can be reduced, and meanwhile, when the fish nest floats upwards, the through holes for fishes to enter and exit in the fish nest are closed, so that the loss of roes in the fish nest can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fish spawning, in particular to a bottom fish spawning device. Background Art

[0002] Fish eggs are sticky eggs, so when laying eggs, you must set up a fish nest, which is like a fertilization bed for fish, so that the sticky eggs after fertilization can adhere to the fish nest, which is convenient for hatching later. If the eggs are not attached to the object, they will sink to the bottom of the water.

[0003] Most of the current fish nests are woven with aquatic grasses connected by net cages. However, the breeding grass can easily change from a fluffy and large-area state to a tangled and clumping state in the water due to algae growth, water flow and other reasons, greatly reducing the area available for sea bass to spawn. At the same time, when the breeding grass is taken out for hatching, the eggs in the fish nest are easily detached from the fish nest and lost due to the violent disturbance of the water flow, thereby reducing the production efficiency of fish egg breeding. Utility Model Content

[0004] The utility model aims to provide a bottom fish spawning device to solve the technical problem in the prior art that when the bottom fish spawning fish nest is lifted, the fish eggs in the fish nest are easily lost due to water flow disturbance.

[0005] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0006] A bottom fish spawning device, comprising:

[0007] A fish nest, on which a floating member is connected, the floating member is acted upon by buoyancy in the water body and can drive the fish nest to float upward to the water surface;

[0008] A plurality of through holes are provided on the side wall of the fish nest, through which fish can enter and exit the fish nest, and a blocking piece is provided in the through hole, which can close or open the through hole.

[0009] As a preferred solution of the utility model, the floating member includes a first sac installed on the fish nest, which is connected to an external inflation mechanism through an air tube. The inflation mechanism inflates the first sac through the air tube to increase the buoyancy of the first sac in the water body.

[0010] As a preferred solution of the utility model, a buoy is provided on the air pipe, and a control valve is installed in the air pipe.

[0011] As a preferred solution of the utility model, the blocking member includes a second capsule installed in the through hole, and the second capsule is connected with the first capsule through a connecting pipe.

[0012] As a preferred solution of the present invention, both the first bladder body and the second bladder body are telescopic airbags, and the peripheral wall of the telescopic airbag is in a corrugated shape.

[0013] As a preferred solution of the present invention, the elastic stiffness coefficient of the second bladder body is smaller than the elastic stiffness coefficient of the second bladder body.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, the gradually increasing buoyancy of the water body on the fish nest is utilized to drive the fish nest to gradually float up, thereby reducing the disturbance inside the fish nest during the floating process. At the same time, when the fish nest floats up, the through holes on the fish nest for fish to enter and exit are closed, thereby reducing the loss of fish eggs inside the fish nest. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] Figure 1 A schematic structural diagram of a bottom fish spawning device is provided for an embodiment of the utility model;

[0018] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0019] Figure 3 A schematic diagram of the distribution structure of through holes in a bottom fish spawning device is provided for an embodiment of the utility model;

[0020] The numbers in the figure represent the following:

[0021] 1 fish nest, 2 floating part, 3 air pipe, 4 buoy, 5 through hole, 6 blocking part, 7 connecting pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1As shown, the utility model provides a bottom fish spawning device, comprising:

[0024] The fish nest 1 is in the shape of a box, and the internal structure of the fish nest is simulated to attract fish to enter the fish nest 1 to lay eggs. For example, some breeding grass is filled in the box.

[0025] A floating member 2 is connected to the fish nest 1. The floating member 2 is acted upon by buoyancy in the water body and can drive the fish nest 1 to float upward to the water surface.

[0026] Among them, the floating member 2 adopts an inflatable and deflated structure. When the fish nest 1 is put into the water, the gas inside the floating member 2 is emptied to reduce the buoyancy of the floating member 2 in the water, so that the fish nest 1 can sink safely to the bottom of the water. When the fish eggs in the fish nest 1 need to be collected and moved, the floating member 2 is inflated through the inflation mechanism to increase the buoyancy of the floating member 2 in the water, thereby slowly driving the fish nest 1 to float up through the floating member 2, and then the user can move the fish nest 1.

[0027] Moreover, the buoyancy of the water body exerted on the floating member 2 gradually increases, and the floating member 2 slowly drives the fish nest 1 to move vertically, thereby reducing the water flow disturbance inside the fish nest 1, thereby reducing the loss of fish eggs inside the fish nest 1.

[0028] In this embodiment, refer to Figure 1 and Figure 3 As shown, a plurality of through holes 5 are provided on the side wall of the fish nest 1 , through which fish can enter and exit the fish nest 1 , and a blocking member 6 is provided in the through hole 5 , which can close or open the through hole 5 .

[0029] When the fish nest is driven upward by the floating member 2 , the through hole 5 is closed by the blocking member 6 , thereby further preventing the fish eggs in the fish nest 1 from being lost through the through hole 5 , thereby improving the capture rate of the fish eggs in the fish nest 1 .

[0030] In order to enable the above-mentioned floating member 2 to drive the fish nest 1, in the present embodiment, the floating member 2 includes a first sac body installed on the fish nest 1, which is connected to an external inflation mechanism through an air pipe 3. The inflation mechanism inflates the first sac body through the air pipe 3 to increase the buoyancy of the first sac body in the water body.

[0031] A suction pipe is also provided on the first bladder, and a piston is provided in the suction pipe. Before the fish nest 1 is placed in water, the gas in the first bladder is first sucked to a negative pressure through the suction pipe to reduce the buoyancy of the floating part 2 by the water and reduce the volume of the floating part 2.

[0032] In this embodiment, refer to Figure 1 As shown, a buoy 4 is provided on the air pipe 3 , and a control valve is installed in the air pipe 3 .

[0033] After the fish nest 1 is sunk to the bottom of the water, the buoy 4 pulls the air tube 3 to be straightened and floats on the water surface, which can not only prevent the air tube 3 from being entangled due to being too long, but also serve as a reminder so that the user can know the specific location of the fish nest 1.

[0034] In this embodiment, refer to Figure 2 As shown, the blocking member 6 includes a second capsule installed in the through hole 5 , and the second capsule is connected to the first capsule through a connecting pipe 7 .

[0035] Therefore, when the gas in the first bladder 1 is sucked to a negative pressure through the suction pipe, the second bladder is also in a contracted state, and the through hole 5 is in an open state.

[0036] In this embodiment, the first bladder and the second bladder are both telescopic air bags, and the peripheral wall of the telescopic air bags is in a corrugated shape, so that when the first bladder and the second bladder are inflated, they expand in the opposite direction along the corrugations. For the first bladder, the expansion direction of the first bladder can be kept uniform, ensuring the stability of the floating direction of the fish nest 1, avoiding uneven force on the fish nest 1 and resulting in cleaning, which leads to leakage of fish eggs in the fish nest 1.

[0037] The second capsule is enabled to expand rapidly along the through hole 5 , thereby closing the through hole 5 .

[0038] In this embodiment, the elastic stiffness coefficient of the second bladder is smaller than the elastic stiffness coefficient of the second bladder. When the first bladder and the second bladder are inflated through the trachea 3, the second bladder expands rapidly before the first bladder to close the through hole 5, and then the first bladder gradually expands to drive the fish nest 1 to float.

[0039] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A bottom fish spawning device, characterized in that: include: A fish nest (1), wherein a floating member (2) is connected to the fish nest (1), and the floating member (2) is acted upon by buoyancy in the water body and can drive the fish nest (1) to float upward to the water surface; A plurality of through holes (5) are provided on the side wall of the fish nest (1), through which fish can enter and exit the fish nest (1), and a blocking member (6) is provided in the through hole (5), and the blocking member (6) can close or open the through hole (5).

2. A bottom fish spawning device according to claim 1, characterized in that: The floating member (2) comprises a first sac installed on the fish nest (1), the first sac being connected to an external inflation mechanism via an air pipe (3), the inflation mechanism inflating the first sac via the air pipe (3) to increase the buoyancy effect on the first sac in the water body.

3. A bottom fish spawning device according to claim 2, characterized in that: A buoy (4) is provided on the air pipe (3), and a control valve is installed in the air pipe (3).

4. A bottom fish spawning device according to claim 2, characterized in that: The blocking member (6) comprises a second capsule installed in the through hole (5), and the second capsule is connected to the first capsule via a connecting pipe (7).

5. A bottom fish spawning device according to claim 4, characterized in that: The first bag body and the second bag body are both telescopic air bags, and the peripheral wall of the telescopic air bag is in a corrugated shape.

6. A bottom fish spawning device according to claim 5, characterized in that: The elastic stiffness coefficient of the second bladder is smaller than the elastic stiffness coefficient of the second bladder.

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