Aquaculture sewage and fish discharge function fish toilet

Abstract

The utility model discloses an aquaculture sewage and fish discharge function fish toilet, relate to aquaculture equipment technical field. The device includes main body cylinder, and its top is equipped with the upper flange who is connected with the bottom of the culture pond, the inside of main body cylinder is equipped with a lower flange for supporting the anti -escape net, the anti -escape net is removably arranged on the lower flange, and the mesh size is configured to allow the culture waste to pass through but prevent the fish from passing through, the lower end one side of main body cylinder is equipped with the bottom export of flaring mouth shape, is used for guiding the waste and the fish to discharge, and the bottom export terminal is equipped with the connecting piece for connecting the pipeline. The utility model discloses through the design of removable anti -escape net, has realized the convenient switching of sewage and fish discharge function, has effectively reduced the fish body damage in the fish discharge process using the flaring mouth export, has the advantages such as reasonable structure, function integration, convenient operation.

Description

Technical Field

[0001] This utility model belongs to the field of aquaculture equipment technology, and in particular relates to a fish toilet that can discharge sewage and fish in aquaculture. Background Technology

[0002] In aquaculture, especially in recirculating aquaculture systems, timely and effective removal of uneaten feed, feces, and other solid waste from the water is crucial for maintaining good water quality. Traditional waste disposal methods often rely on screens or filters fixed to the drain outlet, allowing waste to pass through the mesh while keeping the fish trapped inside the pond.

[0003] However, such traditional devices have obvious drawbacks: First, when fish need to be harvested and discharged after the aquaculture cycle, the fish are easily injured by squeezing and friction at the narrow outlet, affecting the quality and survival rate of the fish; second, the fixed filter screen is easy to clog during sewage discharge, requiring frequent cleaning and increasing labor intensity; third, the function is limited and cannot achieve efficient and convenient switching between sewage discharge mode and fish discharge mode.

[0004] Therefore, there is an urgent need for an integrated device that can effectively separate solid waste from fish and minimize harm to fish during fish discharge. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model aims to provide a fish toilet that can both discharge sewage and fish in aquaculture, so as to solve the technical problems of traditional sewage devices having a single function, easily injuring fish when discharging fish, and difficulty in balancing escape prevention and sewage discharge efficiency.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a fish toilet that combines sewage discharge and fish discharge functions in aquaculture, comprising:

[0008] Main body: It has an upper flange at the top for sealing connection with the opening at the bottom of the aquaculture pond, so that the fish toilet becomes part of the bottom of the aquaculture pond.

[0009] Lower flange: Located inside or at the lower end of the main body, parallel to the upper flange, and used to support the escape-proof net.

[0010] Escape-proof net: Removably mounted on the lower flange. The escape-proof net has a mesh size configured to allow waste such as uneaten feed and feces to pass through during the aquaculture process, but effectively prevents farmed fish from passing through, thus preventing escape.

[0011] Bottom outlet: Located on one side of the lower end of the main cylinder. The bottom outlet is designed in the shape of a funnel, with its large end smoothly connected to the interior of the main cylinder, to guide waste and fish to be discharged gently and in a concentrated manner.

[0012] Connector: Located at the end of the bottom outlet, used to connect to an external sewage or fish drain pipe.

[0013] Furthermore, both the upper and lower flanges are made of polypropylene (PP), which has the advantages of corrosion resistance, light weight, and easy welding.

[0014] Furthermore, the escape-proof net is made of 304 stainless steel, which has excellent corrosion resistance and strength. Its structure includes a rigid outer frame, a cross support frame in the middle for reinforcement, and a net body made of fine wires.

[0015] Furthermore, the bottom outlet has a funnel-shaped opening that is truncated conical. To further protect the fish, its inner wall is coated with a polytetrafluoroethylene (PTFE) anti-scratch coating. This coating has a smooth surface and can greatly reduce friction and damage to the fish during the fish discharge process.

[0016] Furthermore, the connector is a PP flange connector, used to connect to the downstream pipeline, and features convenient connection, high adaptability, good sealing and leak-proof characteristics.

[0017] This utility model has the following beneficial effects:

[0018] Integrated functions and convenient switching: By setting up a removable escape-proof net, it is possible to easily switch between "sewage discharge" and "fish discharge" modes. When aquaculture is carried out, the escape-proof net is placed to discharge sewage normally and prevent fish from escaping; when discharging fish, simply remove the escape-proof net and the fish can smoothly flow into the bottom outlet.

[0019] Effective escape prevention and efficient sewage discharge: The mesh of the escape prevention net is precisely designed to ensure that fish cannot pass through while allowing solid waste to pass through smoothly, resulting in high sewage discharge efficiency.

[0020] Protecting fish and reducing damage: The unique flared design, combined with the scratch-resistant coating on the inner wall, provides a smooth and unobstructed passage for fish, effectively preventing damage to the fish's body surface caused by squeezing and friction during the excretion process, thus ensuring the health and value of the fish.

[0021] Sturdy structure and durable: The main components are made of PP and 304 stainless steel, which have good water resistance and corrosion resistance, long service life and low maintenance cost.

[0022] Reliable connection and easy installation: The standardized flange connection design makes the connection with the aquaculture tank and external pipes quick, sealed and stable.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a cross-sectional view of the present invention;

[0027] Figure 3 This is a schematic diagram of the anti-escape net structure in this utility model;

[0028] Figure 4 This is a schematic diagram illustrating the practical application of this fish toilet, installed inside an aquaculture pond.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1-Main body, 2-Upper flange, 3-Lower flange, 4-Escape-proof net, 5-Bottom outlet, 6-Connector, A-Fish toilet, B-Aquaculture pond. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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 utility model.

[0033] like Figure 1As shown, the present invention provides a fish toilet that combines sewage discharge and fish drainage functions in aquaculture. Its main body 1 is typically made of welded PP sheet. At the top of the main body 1, an upper flange 2 is provided. This upper flange 2 is securely connected to a pre-drilled hole at the bottom 7 of the aquaculture tank via welding or other sealing methods to ensure no leakage.

[0034] Inside the main cylinder 1, near the lower end, a lower flange 3 is provided, parallel to the upper flange 2. The escape-proof net 4 can be directly placed on this lower flange 3. Figure 2 As shown, the escape-proof net 4 is made of 304 stainless steel and includes a sturdy outer frame, a cross-shaped support frame to increase overall rigidity and prevent deformation of the net surface, and a net surface woven from fine wires. The mesh size is preferably 11mm, which can effectively block the passage of common-sized farmed fish fry and adult fish, while allowing most of the uneaten feed and feces to fall smoothly.

[0035] On one side of the lower end of the main body cylinder 1, there is a bottom outlet 5, which is designed as a truncated cone-shaped flared structure. The larger end of the flared opening smoothly transitions into the interior of the main body cylinder 1, while the smaller end is connected to a PP material connector 6 for connecting to subsequent sewage pipes or fish discharge hoses. To protect the fish during fish discharge, the inner wall of the flared opening is coated with a smooth polytetrafluoroethylene (PTFE) anti-scratch coating.

[0036] Working principle:

[0037] Aquaculture waste disposal mode: During normal aquaculture, the escape-proof net 4 is placed on the lower flange 3. Due to the density difference, solid waste sinks and falls through the mesh of the escape-proof net 4 into the bottom of the fish toilet. It is then carried out by the water flow through the funnel-shaped bottom outlet 5 and the connector 6, entering the wastewater treatment system. The fish are effectively kept inside the aquaculture pond by the escape-proof net 4.

[0038] Fish discharge mode: When fish need to be discharged, first lower the water level in the breeding pond, then remove the escape-proof net 4 from the lower flange 3 through the operating port. Continue to drain water or drive the fish away by other means. The fish will gather at the bottom of the fish toilet with the water flow and smoothly enter the connected fish discharge pipe through the smooth flared opening, where they will be collected. This process greatly reduces stress and physical damage to the fish.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fish toilet that combines sewage discharge and fish discharge functions in aquaculture, characterized in that, include: The main body (1) has an upper flange (2) at the top for connecting to the bottom of the aquaculture pond; The lower flange (3) is located inside or at the lower end of the main body (1), parallel to the upper flange, and is used to support the escape net; An escape-proof net (4) is removably mounted on the lower flange (3), the escape-proof net (4) having mesh openings configured to allow aquaculture waste to pass through but prevent fish from passing through; Bottom outlet (5) is located on one side of the lower end of the main body cylinder (1). The bottom outlet (5) has a funnel shape and is used to guide waste and fish out. The connector (6) is located at the end of the bottom outlet (5) and is used to connect to the sewage or fish drain pipe.

2. The aquaculture wastewater discharge and fish discharge function of the fish toilet according to claim 1, characterized in that, Both the upper flange (2) and the lower flange (3) are made of PP material.

3. A fish toilet with both sewage and fish discharge functions for aquaculture as described in claim 1, characterized in that, The escape prevention net (4) is made of 304 stainless steel and includes an outer frame, a cross support frame in the middle, and a net body between the two.

4. A fish toilet with both sewage and fish discharge functions for aquaculture as described in claim 1, characterized in that, The bottom outlet (5) has a truncated cone shape, with its large end diameter connected to the inside of the main body cylinder. The inner wall of the truncated cone is provided with a polytetrafluoroethylene anti-scratch coating.

5. A fish toilet with both sewage and fish discharge functions for aquaculture as described in claim 1, characterized in that, The connector (6) is a PP flange connector used for back-end pipe connection to prevent water leakage.

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