Screening device for juvenile grouper
By combining a stepped, layered screening device with water flow and LED lights, the problem of traditional fish sieves being unable to screen grouper fry at multiple levels has been solved, achieving a highly efficient screening effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAINAN UNIV
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional fish sieves cannot perform multi-level grading based on body size when screening grouper fry, resulting in low grading efficiency.
A stepped, stacked screening device was designed, including a first fish platform, a third fish platform, and a second fish platform. A fish-separating plate is installed inside the guide pipe, and the size of the fish holes gradually decreases. The device utilizes the light-avoiding habits of grouper by combining water flow and LED underwater lights. Push rods and circulation pumps promote screening.
It achieves efficient and convenient multi-level screening, improves screening efficiency, and is suitable for grading and screening juvenile grouper.
Smart Images
Figure CN224098518U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the grouper breeding technical field, concretely relates to a kind of screening device of grouper fry. BACKGROUND
[0002] Grouper is distributed in Guangxi coastal waters, the southern East China Sea and the South China Sea in China. Grouper has the effects of invigorating spleen and tonifying qi, and the nutritional components in fish skin gum have certain effects on enhancing the complete growth of epithelial tissue and promoting the synthesis of collagen cells. It is a high-quality edible fish with low fat and high protein. Grouper has the characteristics of fast growth, large individual and tender meat, and is rich in nutrients and high in economic value, which is popular in the market. It is regarded as a lucky object in China, Hong Kong and Macao regions, and is known as "delicious food".
[0003] During the process of breeding grouper fry, it is necessary to grade the size of the fry and raise them according to the size grade. Therefore, a grading fish screen is used when grading the grouper fry. The traditional fish screen cannot simultaneously select the grouper fry of multiple grades according to the size, which reduces the efficiency of grading the grouper fry. UTILITARIAN CONTENT
[0004] The technical problem to be solved by the utility model is to provide a screening device for grouper fry, which is simple in structure, convenient to use, high in screening efficiency, good in screening effect, easy to install and recycle, and can be widely applied.
[0005] To solve the above technical problems, the utility model adopts the technical scheme of a screening device for grouper fry, characterized by comprising a first fish table and a second fish table, at least one third fish table is arranged between the first fish table and the second fish table, the length of the third fish table is greater than the length of the first fish table and less than the length of the second fish table, the length of the third fish table at the lower layer is greater than the length of the third fish table at the upper layer, the first fish table, the third fish table and the second fish table are box-shaped structures, the top ends of the first fish table, the third fish table and the second fish table are open, the first fish table, the third fish table and the second fish table are arranged in a stepped manner, the side ends of the first fish table and the third fish table are fixedly embedded with flow guide pipes, the outer ends of the flow guide pipes are fixedly installed with elbow pipes, the openings of the elbow pipes are opposite to the second fish table or the third fish table at the next layer, the inner ends of the flow guide pipes are threadedly connected with fish dividing plates, fish holes are formed in the fish dividing plates, the fish holes are communicated with the flow guide pipes, and the sizes of the fish holes are reduced in proportion from top to bottom.
[0006] The first fish platform, the third fish platform and the second fish platform have water with a water level higher than the top end of the flow guide pipe, and the water in the first fish platform and the third fish platform is transported downward through the flow guide pipe and the right-angle elbow pipe to the lower layer, and the gourami larvae can enter the flow guide pipe along with the water flow, so that the gourami larvae can be screened without being separated from the water.
[0007] The gourami larvae to be screened are put into the first fish platform, and the gourami larvae with a size smaller than the fish hole can enter the flow guide pipe through the fish hole and fall into the third fish platform from the right-angle elbow pipe, and since the size of the fish hole is reduced proportionally from top to bottom, the gourami larvae with the smallest size can be moved from the first fish platform to the second fish platform at the lowermost layer, while the gourami larvae with the largest size stay in the first fish platform, and the gourami larvae with a moderate size stay in the third fish platform according to the difference in size.
[0008] Preferably, an LED underwater lamp is arranged on the side of the third fish platform away from the flow guide pipe, and when the gourami larvae are screened, the LED underwater lamp is turned on to prevent the gourami larvae from hiding on the left side of the third fish platform according to the habit of avoiding light, so as to improve the screening efficiency.
[0009] Preferably, a push plate is slidingly arranged in the first fish platform and the third fish platform, a push rod is slidingly arranged at the side end of the first fish platform and the third fish platform, the push plate is fixedly connected with the push rod, the length direction of the push rod is the same as the length direction of the flow guide pipe, and a plurality of water holes are uniformly arranged on the push plate, and the gourami larvae cannot pass through the water holes.
[0010] The push rod can be pulled to the right to make the gourami larvae move to the right, so that the gourami larvae with a size smaller than the fish hole can enter the flow guide pipe through the fish hole for screening, and the gourami larvae are prevented from staying on the left side of the first fish platform and the third fish platform.
[0011] Preferably, a drainage plate is screwedly arranged on one side of the second fish platform, and a handle is arranged outside the drainage plate, which can be used for cleaning and draining water or transferring the gourami larvae in the second fish platform.
[0012] Preferably, a water changing chamber is separated from the other side of the second fish platform by a screen plate, a water outlet pipe is fixedly arranged on the side wall of the water changing chamber, the water inlet end of a circulating pump is fixedly connected with the water outlet pipe, a water inlet pipe is fixedly connected with the water outlet pipe of the circulating pump, water inlet branch pipes are fixedly arranged on the side walls of the first fish platform and the third fish platform, and the water inlet branch pipes are fixedly communicated with the water inlet pipe.
[0013] The water in the second fish platform is transported to the first fish platform and the third fish platform by the circulating pump, so that the water in the first fish platform, the third fish platform and the second fish platform flows circularly, the gourami larvae are promoted to move along the water flow direction, and the screening is facilitated.
[0014] Preferably, the water inlet end of the circulating pump is fixedly connected with the water outlet pipe through a quick connector, the quick connector can also be used for connecting a tap water pipe, the quick connector can be disconnected from the water outlet pipe to discharge water in the second fish platform from the water outlet pipe, and the water inlet end of the circulating pump is communicated with the tap water pipe to supplement water in the device.
[0015] Preferably, the first fish platform is provided with a cover plate, and the cover plate can be covered to use the device for temporarily breeding grotto fish larvae.
[0016] Compared with the prior art, the device has the following advantages:
[0017] 1. The device is provided with the first fish platform, the third fish platform and the second fish platform which are installed in a stepped manner, the flow guide pipes are arranged at the side ends of the first fish platform, the third fish platform and the second fish platform, the fish separating plates are arranged in the flow guide pipes, the fish holes which are sequentially reduced from top to bottom are formed in the fish separating plates, the grotto fish larvae with small sizes can pass through the fish holes and enter the third fish platform or the second fish platform of the next layer, the grotto fish larvae are screened, the grotto fish larvae do not leave water in the screening process, the screening efficiency is high, and the screening effect is good.
[0018] 2. The device is provided with the circulating pump, the water in the second fish platform is conveyed to the first fish platform and the third fish platform by the circulating pump, the flow of the water in the first fish platform, the third fish platform and the second fish platform promotes the grotto fish larvae to enter the fish holes to be screened, the push rod and the push plate are further arranged, the grotto fish larvae are promoted to move to the side of the fish separating plate, and the screening efficiency is improved.
[0019] The device will be further described in detail in combination with the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0020] Fig. 1 is a structural schematic view of the device.
[0021] Fig. 2 is a front view of the device.
[0022] Fig. 3 is a structural schematic view of the fish separating plate in the device.
[0023] DESCRIPTION OF THE DRAWINGS
[0024] DETAILED DESCRIPTION
[0025] For the above purposes, features and advantages of the present application to be more apparent and understandable, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners other than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, and therefore the present application is not limited to the specific implementations disclosed below.
[0026] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.
[0027] As shown in Figs. 1-3 The utility model provides a kind of screening device for grouper fry, including first fish table 1 and second fish table 2, at least one third fish table 3 is provided between the first fish table 1 and second fish table 2, the length of the third fish table 3 is greater than the length of first fish table 1, and less than the length of second fish table 2, the length of third fish table 3 located in low layer is greater than the length of third fish table 3 located in high layer, the first fish table 1, third fish table 3 and second fish table 2 are box type structure, the top of the first fish table 1, third fish table 3 and second fish table 2 is provided as opening, the first fish table 1, third fish table 3 and second fish table 2 are arranged in stepped type, the side end of the first fish table 1 and third fish table 3 is fixedly embedded with flow guide pipe 4, the outer end of the flow guide pipe 4 is fixedly installed with elbow 5, the opening of the elbow 5 is opposite to the second fish table 2 or third fish table 3 located in next layer, the inner end of the flow guide pipe 4 is threadedly connected with fish separating plate 6, fish hole 7 is formed in the fish separating plate 6, the fish hole 7 is communicated with flow guide pipe 4, the size of the fish hole 7 is gradually reduced in proportion from top to bottom, and the shape of the fish hole 7 is close to fish shape.
[0028] The first fish table 1, third fish table 3 and second fish table 2 store water with water level higher than the top end of flow guide pipe 4, and the water in the first fish table 1 and third fish table 3 is transported to lower layer through flow guide pipe 4 and elbow 5 from top to bottom, so that the water flow drives the grouper fry into flow guide pipe 4, so that the grouper fry can be screened without leaving the water.
[0029] The gourami larvae to be screened are put into the first fish platform 1, and the gourami larvae with a size smaller than the fish hole 7 can enter the flow guide pipe 4 through the fish hole 7, fall into the third fish platform 3 from the elbow pipe 5, and because the size of the fish hole 7 is reduced proportionally from top to bottom, the gourami larvae with the smallest size can move from the first fish platform 1 to the second fish platform 2 at the lowermost layer, the gourami larvae with the largest size stay in the first fish platform 1, and the gourami larvae with a moderate size stay in the third fish platform 3 according to the difference in size.
[0030] In the embodiment, the third fish platform 3 is provided with an LED underwater lamp 8 on the side away from the flow guide pipe 4, and when the gourami larvae are screened, the LED underwater lamp 8 is turned on to prevent the gourami larvae from hiding on the left side of the third fish platform 3 according to the habit of avoiding light of the gourami, so as to improve the screening efficiency.
[0031] In the embodiment, the first fish platform 1 and the third fish platform 3 are slidably provided with a push plate 9, the side end of the first fish platform 1 and the third fish platform 3 is slidably provided with a push rod 10, the push plate 9 and the push rod 10 are fixedly connected, the length direction of the push rod 10 is the same as the length direction of the flow guide pipe 4, and a plurality of water holes are uniformly formed in the push plate 9, and the gourami larvae cannot pass through the water holes.
[0032] The push rod 10 can be pulled to the right to make the gourami larvae move to the right, so that the gourami larvae with a size smaller than the fish hole 7 can enter the flow guide pipe 4 through the fish hole 7 for screening, and the gourami larvae are prevented from staying on the left side of the first fish platform 1 and the third fish platform 3.
[0033] In the embodiment, the second fish platform 2 is provided with a drainage plate 11 on one side, and the drainage plate 11 is provided with a handle outside, which can be used for drainage or transfer of the gourami larvae in the second fish platform 2.
[0034] In the embodiment, the second fish platform 2 is divided into a water changing chamber 13 by a screen plate 12 on the other side, the water changing chamber 13 is fixedly provided with a water outlet pipe 14 on the side wall, the water outlet pipe 14 is fixedly connected to the water inlet end of a circulating pump 15, the water outlet pipe of the circulating pump 15 is fixedly connected to a water delivery pipe 16, the first fish platform 1 and the third fish platform 3 are fixedly provided with a water delivery branch pipe 17 on the side wall, and the water delivery branch pipe 17 is fixedly communicated with the water delivery pipe 16.
[0035] The water in the second fish platform 2 is delivered to the first fish platform 1 and the third fish platform 3 by the circulating pump 15, so that the water in the first fish platform 1, the third fish platform 3 and the second fish platform 2 flows circularly, the gourami larvae are promoted to move along the water flow direction, and the screening is facilitated.
[0036] In the embodiment, the water inlet end of the circulating pump 15 is fixedly connected with the water outlet pipe 14 through a quick connector, the quick connector can also be used for connecting a tap water pipe, the quick connector can be disconnected from the water outlet pipe 14 to discharge water in the second fish platform 2 from the water outlet pipe 14, and meanwhile the water inlet end of the circulating pump 15 is communicated with the tap water pipe to supplement water into the device.
[0037] In the embodiment, the first fish platform 1 is provided with a cover plate at the top end, the cover plate can be covered to use the device for temporarily breeding grotto fish larvae.
[0038] In use, the water in the second fish platform 2 is delivered to the first fish platform 1 and the third fish platform 3 through the circulating pump 15 to make the water in the first fish platform 1, the third fish platform 3 and the second fish platform 2 flow circularly to promote the grotto fish larvae to move along the water flow direction and facilitate the screening.
[0039] The first fish platform 1, the third fish platform 3 and the second fish platform 2 contain water with a water level higher than the top end of the flow guide pipe 4, the water in the first fish platform 1 and the third fish platform 3 is delivered from top to bottom to the lower layer through the flow guide pipe 4 and the elbow pipe 5, and the grotto fish larvae can enter the flow guide pipe 4 along the water flow to realize the screening without leaving the water.
[0040] The grotto fish larvae to be screened are put into the first fish platform 1, the grotto fish larvae with a size smaller than the fish hole 7 can enter the flow guide pipe 4 through the fish hole 7 and fall into the third fish platform 3 from the elbow pipe 5, since the size of the fish hole 7 is reduced proportionally from top to bottom, the grotto fish larvae with the smallest size can be moved from the first fish platform 1 to the second fish platform 2 at the lowermost layer, the grotto fish larvae with the largest size are retained in the first fish platform 1, and the grotto fish larvae with a moderate size are further retained in the third fish platform 3 according to the difference in size to realize the screening of the grotto fish.
[0041] The LED underwater lamp 8 can also be turned off to use the device for temporarily breeding grotto fish larvae.
[0042] The above is only a preferred embodiment of the present application, and does not limit the present application. Any simple modification, change and equivalent change of the above embodiment according to the technical essence of the present application are still within the protection scope of the technical scheme of the present application.
Claims
1. A device for sorting juvenile grouper fish, characterized by, The application relates to a fish tank, which comprises a first fish tank (1) and a second fish tank (2), at least one third fish tank (3) is arranged between the first fish tank (1) and the second fish tank (2), the length of the third fish tank (3) is greater than that of the first fish tank (1) and smaller than that of the second fish tank (2), the first fish tank (1), the third fish tank (3) and the second fish tank (2) are box-shaped structures, the top ends of the first fish tank (1), the third fish tank (3) and the second fish tank (2) are provided with openings, the first fish tank (1), the third fish tank (3) and the second fish tank (2) are arranged in a stepped mode, the length of the third fish tank (3) located at a lower layer is greater than that of the third fish tank (3) located at a higher layer, a flow guide pipe (4) is fixedly arranged at the side end of the first fish tank (1) and the third fish tank (3), a right-angle elbow pipe (5) is fixedly arranged at the outer end of the flow guide pipe (4), the opening of the right-angle elbow pipe (5) faces the second fish tank (2) or the third fish tank (3), a fish separating plate (6) is threadedly connected to the inner end of the flow guide pipe (4), fish holes (7) are arranged in the fish separating plate (6), the fish holes (7) are communicated with the flow guide pipe (4), and the sizes of the fish holes (7) are gradually reduced in a proportional mode from top to bottom.
2. The device for sorting grotfish juveniles according to claim 1, wherein, An LED underwater lamp (8) is arranged in the third fish tank (3) away from the flow guide pipe (4).
3. The device for sorting grotfish juveniles according to claim 1, wherein, A push plate (9) is slidingly arranged in the first fish tank (1) and the third fish tank (3), a push rod (10) is slidingly arranged at the side end of the first fish tank (1) and the third fish tank (3), the push plate (9) is fixedly connected with the push rod (10), the length direction of the push rod (10) is the same as that of the flow guide pipe (4), and a plurality of water draining holes are uniformly arranged in the push plate (9).
4. The device for sorting grotfish juveniles according to claim 1, wherein, A water draining plate (11) is threadedly arranged at one side of the second fish tank (2), and a handle is arranged outside the water draining plate (11).
5. The device for sorting grotfish larvae according to claim 4, wherein, A water changing chamber (13) is separated from the other side of the second fish tank (2) through a screen plate (12), a water outlet pipe (14) is fixedly arranged on the side wall of the water changing chamber (13), the water inlet end of a circulating pump (15) is fixedly connected with the water outlet pipe (14), the water outlet pipe of the circulating pump (15) is fixedly connected with a water conveying pipe (16), water conveying branch pipes (17) are fixedly arranged on the side walls of the first fish tank (1) and the third fish tank (3), and the water conveying branch pipes (17) are fixedly communicated with the water conveying pipe (16).
6. The device for sorting grotfish larvae according to claim 5, wherein, The water inlet end of the circulating pump (15) is fixedly connected with the water outlet pipe (14) through a quick connector, and the quick connector can also be used for connecting a tap water pipe.
7. The device for sorting grotfish fry according to claim 1, wherein A cover plate is arranged at the top end of the first fish tank (1).