A kind of aquaculture fish fry grading and screening device

Abstract

The utility model relates to the technical field of aquaculture, and discloses an aquaculture fish fry grading and screening device, including a supporting base frame and a screening tank installed on the upper end of the supporting base frame bracket, one side of the tank body of the screening tank is connected with a circulating pump component, and a grading and screening component is placed inside the tank body of the screening tank. When the utility model screens the fish fry, the circulating pumping of the circulating pump component is used to drive the water flow in the screening tank to circulate, forming a dynamic flow mode, which is convenient for the activity and dispersion of the fish fry, and on the other hand, the circulating reflux of the water flow is pumped into the screening tank to accelerate the flow efficiency and oxygen content of the water flow, and then the grading and screening component is slowly raised, and the three groups of screening net frames with different aperture sizes are used to perform a layer-by-layer screening process on the active fish fry, and the screening is more efficient and safe, and the operation is simpler, more convenient and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture, in particular to an aquaculture fish fry grading and screening device. Background Art

[0002] Aquaculture generally refers to fish farming, which can not only meet food needs and provide abundant aquatic products, but also maintain ecological balance and promote industrial development. In aquaculture, the specifications of fry are usually screened to divide them into different grades of fry for sale. Therefore, a screening device is usually used to sort the fry, as shown in the existing patent technology: After searching, China Patent Network discloses an efficient fry grading and screening device (public announcement number CN214047157U). When such a device is used, it vibrates through a vibration motor to agitate the water, so that the fish instinctively flee. When escaping, the larger fry are blocked inside by a large screen, while the medium and small fry continue to escape through the large screen, and the medium fry are blocked inside by the medium screen, while the small fry and micro fry continue to escape through the medium screen, and then the small fry and micro fry are screened by a fine screen. After screening, the large screen, the medium screen, the fine screen and the scoop net are lifted in turn, so that the fry are screened and salvaged quickly and efficiently.

[0003] However, the above-mentioned patents and the fry grading and screening devices adopted in the existing market still have some shortcomings: the existing method of using a vibrating component to oscillate the water flow to drive the fry to escape, and then using a screen to screen, the oscillation driving method of the fry can easily lead to disorderly escape of the fry, collision and casualties, large casualties and losses to the fry, and high screening costs. To this end, those skilled in the art provide an aquaculture fry grading and screening device to solve the problems raised in the above background technology. Utility Model Content

[0004] The main purpose of the utility model is to provide an aquaculture fish fry grading and screening device, which can effectively solve the problem of large casualties and losses in the existing fish fry screening in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an aquaculture fish fry grading and screening device, comprising a supporting frame and a screening tank installed on the upper end of the supporting frame bracket, one side of the tank body of the screening tank is connected to a circulating pump component, and a grading and screening component is placed inside the tank body of the screening tank;

[0006] The circulating pump assembly comprises a circulating water pump installed on a supporting chassis along the direction of the screening tank body, the pumping end of the circulating water pump is connected to a pumping pipe connected to the bottom of the screening tank, and the drainage end of the circulating water pump is connected to a return pipe, the other end of the return pipe is connected to a return ring pipe surrounding the top of the screening tank body, and the return ring pipe is provided with a plurality of return nozzles penetrating the screening tank arranged along its circumference;

[0007] The grading screening component comprises a track frame placed inside the screening tank body, and a first screening net frame, a second screening net frame and a third screening net frame are sequentially slidably placed on the slide rail end of the track frame from bottom to top.

[0008] As a further solution of the utility model: the inner wall of the screening tank is provided with a stop ring supporting the track frame, and the track frame is a tripod mechanism.

[0009] As a further solution of the utility model: an arm force ring frame is arranged at the top end of the bracket of the track frame, and handles are symmetrically arranged on both sides of the arm force ring frame.

[0010] As a further solution of the utility model: the frame edges of the first screening frame, the second screening frame and the third screening frame are all provided with track slide grooves adapted to guide the track frame.

[0011] As a further solution of the utility model: the sizes of the screening holes of the third screening frame, the second screening frame and the first screening frame are reduced in sequence.

[0012] As a further solution of the utility model: a plurality of groups of the return nozzles are arranged in a ring-shaped symmetrical manner relative to the tank body of the screening tank.

[0013] As a further solution of the utility model: the tank bottom of the screening tank is connected to a drain pipe, and the other end of the drain pipe is connected to a drain valve.

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

[0015] When the utility model screens the fry, the grading and screening component is placed in the screening tank in advance, and when the fry are subsequently poured into the screening tank, the circulating pump component is used for circulating pumping, which, on the one hand, drives the water flow in the screening tank to circulate and form a dynamic flow mode, which is convenient for the activity and dispersion of the fry, and on the other hand, the water flow is circulated and pumped back into the screening tank to accelerate the flow efficiency and oxygen content of the water flow, which is convenient for the normal swimming activity of the fry, and then the grading and screening component is slowly raised, and the three groups of screening net frames with different aperture sizes are used to screen the active fry layer by layer, so that the screening is more efficient and safe, and the operation is simpler, more convenient and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of an aquaculture fish fry grading and screening device of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a circulating pump assembly in an aquaculture fry grading and screening device according to the utility model;

[0018] Figure 3 The utility model is a structural schematic diagram of a grading and screening component in an aquaculture fish fry grading and screening device.

[0019] In the figure: 1. supporting frame; 2. screening tank; 3. circulating water pump; 4. return pipe; 5. return ring pipe; 6. track frame; 7. arm ring frame; 8. handle; 9. drain valve; 10. drain pipe; 11. suction pipe; 12. return nozzle; 13. stop ring; 14. first screening frame; 15. second screening frame; 16. third screening frame; 17. track slide. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Please refer to Figure 1-3As shown, an aquaculture fish fry grading and screening device comprises a supporting base frame 1 and a screening tank 2 installed on the upper end of the supporting base frame 1, a grading and screening component is placed inside the tank body of the screening tank 2, and the grading and screening component comprises a track frame 6 placed inside the tank body of the screening tank 2, a stop ring 13 for supporting the track frame 6 is arranged on the inner wall of the tank body of the screening tank 2, and the track frame 6 is a tripod mechanism, an arm force ring frame 7 is arranged on the top of the bracket of the track frame 6, and handles 8 are symmetrically arranged on both sides of the arm force ring frame 7. When screening aquatic fish fry, the overall structure of the grading and screening component is built into the screening tank 2 in advance in the form of a carrying handle 8, and the stop ring 13 is used for bottom support, so that the three groups of screening net frames are sequentially built into the screening tank 2 as a grading and screening component for fish fry, and then the fish fry to be screened are placed in the screening tank 2 to carry out the screening process.

[0024] The first screening net frame 14, the second screening net frame 15, and the third screening net frame 16 are slidably placed on the slide rail end of the track frame 6 from bottom to top. The frame edges of the first screening net frame 14, the second screening net frame 15, and the third screening net frame 16 are all provided with track slide grooves 17 that are guided and adapted to the track frame 6. The screening holes of the third screening net frame 16, the second screening net frame 15, and the first screening net frame 14 are reduced in size. In the process of screening the fry, the combination of the first screening net frame 14, the second screening net frame 15, and the third screening net frame 16 is slowly lifted, and the fry are filtered and screened step by step by using the third screening net frame 16, the second screening net frame 15, and the first screening net frame 14 with the screening holes reduced in size. After the fry screening is completed, the third screening net frame 16, the second screening net frame 15, and the first screening net frame 14 only need to be removed from the track frame 6 in sequence, and the screened fry can be dumped and sorted.

[0025] A circulating pump assembly is connected to one side of the tank body of the screening tank 2, and the circulating pump assembly includes a circulating water pump 3 installed on the supporting base frame 1 along the tank body direction of the screening tank 2, and the pumping end of the circulating water pump 3 is connected to a pumping pipe 11 connected to the tank bottom of the screening tank 2, and the drainage end of the circulating water pump 3 is connected to a return pipe 4, and the other end of the return pipe 4 is connected to the return ring pipe 5 surrounding the top of the tank body of the screening tank 2, and the return ring pipe 5 is arranged along its circumferential direction. A plurality of groups of return nozzles 12 that penetrate the screening tank 2 are arranged relative to the screening tank 2. The tank body of the selection tank 2 is arranged symmetrically in a ring shape. During the process of screening the fry, the circulating water pump 3 is controlled to work, and the water flow in the screening tank 2 is extracted through the pumping pipe 11, thereby driving the dynamic flow of the water flow in the screening tank 2 to facilitate the movement and dispersion of the fry. At the same time, the extracted water flow is returned and sprayed into the screening tank 2 under the combination of the return pipe 4, the return ring pipe 5, and the return nozzle 12, which further improves the dynamic flow of the water flow in the screening tank 2, while increasing the contact between the water flow and the air, increasing the oxygen content in the water flow, and improving the survival efficiency of the fry.

[0026] The bottom of the screening tank 2 is connected to a drain pipe 10, and the other end of the drain pipe 10 is connected to a drain valve 9. After the fry screening is completed, the valve switch of the drain valve 9 can be opened to discharge the water in the screening tank 2 through the drain pipe 10.

[0027] The working principle of the utility model is as follows: when screening aquatic fry, the overall structure of the grading and screening assembly is built into the screening tank 2 in advance by means of a carrying handle 8, and the bottom is supported by a stop ring 13, so that the three groups of screening net frames are sequentially built into the screening tank 2 as the grading and screening components of the fry, and then the fry to be screened are placed in the screening tank 2 to carry out the screening process, and the circulating water pump 3 is further controlled to work, and the water flow in the screening tank 2 is extracted through the pumping pipe 11, so as to drive the dynamic flow of the water flow in the screening tank 2, and at the same time, the extracted water flow is sprayed back to the screening under the combination of the return pipe 4, the return ring pipe 5, and the return nozzle 12. In the selection tank 2, the dynamic flow of water in the screening tank 2 is further improved, and the activity dispersion of the fry is facilitated. At this time, the combination of the first screening frame 14, the second screening frame 15, and the third screening frame 16 is slowly lifted up, and the fry are filtered and screened step by step by using the third screening frame 16, the second screening frame 15, and the first screening frame 14 with successively decreasing screening hole sizes. After the fry screening is completed, it is only necessary to remove the third screening frame 16, the second screening frame 15, and the first screening frame 14 from the track frame 6 in turn, and the screened fry can be dumped for sorting and processing. The overall operation is simple, gentle, and convenient, and the loss and casualties of the fry are relatively small.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An aquaculture fish fry grading and screening device, comprising a supporting frame (1) and a screening tank (2) mounted on the upper end of the supporting frame (1), characterized in that: A circulating pump assembly is conductively connected to one side of the tank body of the screening tank (2), and a grading screening assembly is placed inside the tank body of the screening tank (2); The circulation pump assembly comprises a circulation water pump (3) mounted on a supporting base frame (1) along the direction of the screening tank (2) tank body, the pumping end of the circulation water pump (3) being connected to a pumping pipe (11) which is conductively connected to the tank bottom of the screening tank (2), and the drainage end of the circulation water pump (3) being connected to a return pipe (4), the other end of the return pipe (4) being conductively connected to a return ring pipe (5) surrounding the top of the tank body of the screening tank (2), and the return ring pipe (5) being provided with a plurality of return nozzles (12) which are arranged along its circumference and penetrate the screening tank (2); The grading screening component comprises a track frame (6) placed inside the screening tank (2), and a first screening net frame (14), a second screening net frame (15), and a third screening net frame (16) are slidably placed on the slide rail end of the track frame (6) in sequence from bottom to top.

2. The aquaculture fry grading and screening device according to claim 1, characterized in that: The inner wall of the screening tank (2) is provided with a stop ring (13) for supporting the track frame (6), and the track frame (6) is a tripod mechanism.

3. The aquaculture fry grading and screening device according to claim 1, characterized in that: An arm force ring frame (7) is provided at the top end of the support of the track frame (6), and handles (8) are symmetrically provided on both sides of the arm force ring frame (7).

4. The aquaculture fry grading and screening device according to claim 1, characterized in that: The frame edges of the first screening frame (14), the second screening frame (15) and the third screening frame (16) are all provided with track sliding grooves (17) adapted to guide the track frame (6).

5. The aquaculture fry grading and screening device according to claim 1, characterized in that: The sizes of the screening holes of the third screening frame (16), the second screening frame (15), and the first screening frame (14) decrease in sequence.

6. The aquaculture fry grading and screening device according to claim 1, characterized in that: The plurality of groups of return flow nozzles (12) are arranged symmetrically in a ring shape relative to the tank body of the screening tank (2).

7. The aquaculture fry grading and screening device according to claim 1, characterized in that: The tank bottom of the screening tank (2) is connected to a drainage pipe (10), and the other end of the drainage pipe (10) is connected to a drainage valve (9).

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