Australian freshwater lobster hatching device

Abstract

The utility model provides an Australian freshwater lobster hatching device which comprises a main body, the main body is rectangular, the interior of the main body is hollow, an auxiliary box is arranged in the main body, the left side and the right side of the auxiliary box are attached to the inner wall of the main body, a leakage plate is arranged on the upper portion of the auxiliary box, leakage holes are formed in the leakage plate, and the leakage holes of the leakage plate are sequentially shrunk from top to bottom. The height of the auxiliary box is the same as that of the main body, four coamings are arranged on the inner wall of the auxiliary box and fixedly connected to the inner wall of the auxiliary box, a leakage plate is placed on the coamings and prevented from falling to the bottom of the auxiliary box, leakage holes are formed in the four walls of the auxiliary box in a penetrating mode and formed below the coamings, and leakage holes are formed in the bottom of the auxiliary box as well. Leakage holes in the bottom of the auxiliary box are smaller than leakage holes in the bottom of the leakage plate, and shrimp seeds are prevented from entering the main body from the bottom of the auxiliary box.

Description

Technical Field

[0001] This utility model relates to the field of animal husbandry technology, and more specifically, to an Australian freshwater crayfish hatching device. Background Technology

[0002] Australian freshwater crayfish originate from the tropical regions of northern Australia. They are highly adaptable and can tolerate harsh climates, thriving in water temperatures ranging from 5 to 35 degrees Celsius. They are nocturnal, hiding during the day and feeding at dawn and dusk. They are benthic reptiles with a varied diet, consuming both animal feed and formulated feeds as well as humus. They are easy to raise and require minimal care. They are stocked in April and May and harvested in October and November. In the Yangtze River basin of China, they can reproduce 2 or 3 times a year, while in central and southern China, they can reproduce 3 to 5 times a year. Australian freshwater crayfish are among the most valuable freshwater economic shrimp species in the world and a premium freshwater aquaculture species introduced to China in recent years. They are large and plump, grow quickly, have high yields, are rich in nutrients, and have tender, crisp, and sweet-tasting meat with a unique flavor. They also have strong vitality, making them suitable for long-distance transportation.

[0003] The survival rate of freshwater crayfish farmed with existing technology is low. Adult crayfish will eat the juvenile crayfish, which will prevent them from growing normally. Since the juvenile crayfish are at the bottom, staff can only know their growth status by catching them. However, mistakes can happen during the catching process. In addition, the growth of juvenile crayfish will generate some waste, and staff need to change the water frequently to ensure water quality.

[0004] Therefore, this application proposes an Australian freshwater crayfish hatching device to solve the above-mentioned problems. Utility Model Content

[0005] The present invention aims to solve the problems mentioned in the background art, thereby providing an Australian freshwater crayfish hatching device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an Australian freshwater crayfish hatching device, comprising: a main body, the main body being rectangular and hollow inside, a secondary box being disposed inside the main body, the left and right sides of the secondary box being attached to the inner wall of the main body, a perforated plate being disposed on the upper part of the secondary box, the perforated plate being provided with perforation holes, the perforation holes of the perforated plate being progressively smaller from top to bottom, the secondary box being the same height as the main body, a surrounding plate being disposed on the inner wall of the secondary box, the surrounding plate being fixedly connected to the inner wall of the secondary box by four members, and the perforated plate being placed on the surrounding plate.

[0007] Preferably, the four walls of the auxiliary box are provided with perforations, the drainage holes on the inner wall of the auxiliary box are located below the surrounding plate, and the bottom of the auxiliary box is also provided with drainage holes. The drainage holes at the bottom of the auxiliary box are smaller than the drainage holes at the bottom of the drainage plate to prevent shrimp larvae from entering the main body from the bottom of the auxiliary box.

[0008] Preferably, the sub-box and the main body are detachably disposed.

[0009] Preferably, the auxiliary box is provided with handles on both sides for easier removal, and the main body is provided with recesses on both sides so that the handles and recesses cooperate.

[0010] Preferably, the top of the auxiliary box is fitted to the interior of the main body, the bottom of the auxiliary box is separated from the main body by 20 centimeters to form a groove, a heating tube is provided on the inner wall below the main body, the heating tube is fixed to the inner wall of the main body, the heating tube is U-shaped, and the bottom of the heating tube is located near the bottom end of the main body.

[0011] Preferably, an regulator is provided at the upper right end of the heating tube, penetrating the main body, and the regulator is fixedly mounted on the outer wall of the main body.

[0012] Preferably, a suction pipe is provided at the bottom of the outer wall of the main body, the suction pipe penetrates the outer wall of the main body and opens the main body, a filter box is connected to the right side of the suction pipe, a filter plate is provided inside the filter box, the filter box can be opened to better access the filter plate inside, the suction pipe extends to the right through the filter box and is connected to a water pump, an outlet pipe is provided at the right end of the water pump, and the outlet pipe penetrates the outer wall of the main body. Beneficial effects

[0013] The hatched juvenile shrimp are separated from the adult shrimp by a set of perforated plates. The hatched juvenile shrimp will be placed on the perforated plates, and the perforations set in the perforated plates allow them to enter the lower layer to prevent them from being eaten by the adult shrimp. The perforations are narrowed from top to bottom to reduce the number of juvenile shrimp swimming to the upper layer. After the juvenile shrimp have been raised for a few days, their size increases and they can no longer enter the upper layer through the perforations. Furthermore, newly hatched juvenile shrimp will not swim to the upper layer.

[0014] Once the juvenile shrimp have successfully hatched and grown, the drain plate is moved to transfer the adult shrimp from the drain plate. The secondary box is then removed, and the hatched juvenile shrimp can be poured out, reducing the workload for staff and preventing juvenile shrimp from remaining inside the box, which could lead to their death and waste.

[0015] The drainage holes in the secondary tank allow shrimp waste to settle, providing a better growth environment for juvenile shrimp. Activating the water pump generates water flow, filtering the water inside the main body to absorb shrimp excrement and waste. The designed filter box intercepts this waste, reducing the frequency of water changes and ensuring clean water quality, thus providing a better production environment for juvenile shrimp. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2This is a schematic diagram of the perforated plate structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the back structure of the sluice plate of this utility model.

[0019] Figure 4 This is a schematic diagram of the internal structure of the main body of this utility model.

[0020] Figure 5 This is a schematic diagram of the auxiliary box structure of this utility model.

[0021] Figure 6 This is a view showing the interior of the auxiliary box of this utility model.

[0022] Figure 7 This is a schematic diagram of the outer wall structure of the main body of this utility model.

[0023] Figure 1-7 In the middle: 1. Main body, 11. Auxiliary box, 12. Strainer plate, 13. Enclosure, 14. Handle, 15. Heating tube, 16. Regulator, 17. Pulling pipe, 18. Filter box, 19. Water pump, 20. Outlet pipe. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 7 In this embodiment of the present invention, an Australian freshwater crayfish hatching device includes: a main body 1, which is rectangular and hollow inside; a secondary box 11 is provided inside the main body 1; the left and right sides of the secondary box 11 are attached to the inner wall of the main body 1; a drain plate 12 is provided on the upper part of the secondary box 11; the drain plate 12 has drain holes, which decrease in size from top to bottom; the height of the secondary box 11 is the same as that of the main body 1; a surrounding plate 13 is provided on the inner wall of the secondary box 11; the surrounding plate 13 consists of four fixed connections to the inner wall of the secondary box 11; the drain plate 12 is placed on the surrounding plate 13 to prevent it from falling to the bottom of the secondary box 11.

[0026] The auxiliary box 11 has perforated holes on all four walls. The holes on the inner wall of the auxiliary box 11 are located below the enclosure 13. The bottom of the auxiliary box 11 also has holes. The holes at the bottom of the auxiliary box 11 are smaller than the holes at the bottom of the perforated plate 12 to prevent shrimp larvae from entering the main body 1 from the bottom of the auxiliary box 11.

[0027] The auxiliary box 11 and the main body 1 are detachable, allowing for better retrieval of shrimp larvae;

[0028] The newly hatched juvenile shrimp and adult shrimp are separated by the set-up perforated plate 12. The newly hatched juvenile shrimp will be on the perforated plate 12. The perforated holes set in the perforated plate 12 allow them to enter the lower layer to prevent them from being eaten by the adult shrimp. The perforated holes shrink from top to bottom to reduce the number of juvenile shrimp swimming to the upper layer. After the juvenile shrimp are raised for a few days, their size increases and they can no longer enter the upper layer through the perforated holes. Furthermore, newly hatched juvenile shrimp will not swim to the upper layer.

[0029] Furthermore, once the juvenile shrimp have successfully hatched and grown, the drain plate 12 can be moved to transfer the adult shrimp from the drain plate 12. The auxiliary box 11 can then be removed, allowing the hatched juvenile shrimp to be poured out. This reduces the workload for staff and prevents any remaining juvenile shrimp from dying inside the box, thus avoiding waste.

[0030] In embodiment 2, handles 14 are provided on both sides of the auxiliary box 11 to better remove the auxiliary box 11. Concave blocks are provided on both sides of the main body 1 so that the handles 14 and the concave blocks cooperate to prevent the auxiliary box 11 from being unable to enter the main body 1 as a whole due to the handles 14.

[0031] Furthermore, the top of the auxiliary box 11 is fitted to the inside of the main body 1, and the bottom of the auxiliary box 11 is separated from the main body 1 by 20 centimeters to form a hollow groove. A heating tube 15 is installed on the inner wall below the main body 1. The heating tube 15 is fixed to the inner wall of the main body 1. The heating tube 15 is U-shaped and the bottom of the heating tube 15 is set close to the bottom of the main body 1, so that the water can be heated better and the uneven heating of the water can prevent temperature stratification.

[0032] A regulator 16 is installed at the upper right end of the heating tube 15, penetrating the main body 1. The regulator 16 is fixedly installed on the outer wall of the main body 1. The water temperature can be viewed and adjusted through the regulator 16.

[0033] Among them, a suction pipe 17 is provided at the bottom of the outer wall of the main body 1. The suction pipe 17 penetrates the outer wall of the main body 1 and opens the main body 1. A filter box 18 is connected to the right side of the suction pipe 17. A filter plate is provided inside the filter box 18. The filter box 18 can be opened to better access the filter plate inside. The suction pipe 17 extends to the right through the filter box 18 and is connected to a water pump 19. An outlet pipe 20 is provided at the right end of the water pump 19. The outlet pipe 20 penetrates the outer wall of the main body 1.

[0034] The waste produced by the shrimp can be settled through the leakage holes in the secondary box 1, providing a better growth space for the juvenile shrimp. When the water pump 19 is started, water flow is generated, and the water inside the main body 1 is filtered to absorb the shrimp's excrement and waste. The waste is then intercepted by the designed filter box 18, reducing the frequency of water changes by the staff and ensuring clean water quality, thus providing a better production environment for the juvenile shrimp.

[0035] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A hatching device for Australian freshwater crayfish, characterized in that: The main body (1) is rectangular and hollow inside. A secondary box (11) is provided inside the main body (1). The left and right sides of the secondary box (11) are attached to the inner wall of the main body (1). A drain plate (12) is provided on the upper part of the secondary box (11). A drain hole is provided on the drain plate (12). The drain hole of the drain plate (12) is gradually reduced from top to bottom. The height of the secondary box (11) is the same as that of the main body (1). A surrounding plate (13) is provided on the inner wall of the secondary box (11). The surrounding plate (13) consists of four fixed connections to the inner wall of the secondary box (11). The drain plate (12) is placed on the surrounding plate (13).

2. The Australian freshwater crayfish hatching device according to claim 1, characterized in that: The four walls of the sub-box (11) are provided with perforations. The perforations on the inner wall of the sub-box (11) are located below the surrounding plate (13). The bottom of the sub-box (11) is also provided with perforations. The perforations at the bottom of the sub-box (11) are smaller than those at the bottom of the perforation plate (12) to prevent shrimp larvae from entering the main body (1) from the bottom of the sub-box (11).

3. The Australian freshwater crayfish hatching device according to claim 1, characterized in that: The sub-box (11) and the main body (1) are detachable.

4. The Australian freshwater crayfish hatching device according to claim 3, characterized in that: The auxiliary box (11) is provided with handles (14) on both sides to better take out the auxiliary box (11), and the main body (1) is provided with recesses on both sides so that the handles (14) and the recesses cooperate.

5. The Australian freshwater crayfish hatching device according to claim 1, characterized in that: The top of the auxiliary box (11) is fitted inside the main body (1), and the bottom of the auxiliary box (11) is separated from the main body (1) by 20 centimeters to form a hollow groove. A heating tube (15) is provided on the inner wall below the main body (1). The heating tube (15) is fixed on the inner wall of the main body (1). The heating tube (15) is U-shaped and the bottom of the heating tube (15) is located close to the bottom of the main body (1).

6. The Australian freshwater crayfish hatching device according to claim 5, characterized in that: The upper right end of the heating tube (15) penetrates the main body (1) and is equipped with an regulator (16), which is fixedly installed on the outer wall of the main body (1).

7. The Australian freshwater crayfish hatching device according to claim 1, characterized in that: A suction pipe (17) is provided at the bottom of the outer wall of the main body (1). The suction pipe (17) penetrates the outer wall of the main body (1) and opens the main body (1). A filter box (18) is connected to the right side of the suction pipe (17). A filter plate is provided inside the filter box (18). The filter box (18) can be opened to better access the filter plate inside. The suction pipe (17) extends to the right through the filter box (18) and is connected to a water pump (19). An outlet pipe (20) is provided at the right end of the water pump (19). The outlet pipe (20) penetrates the outer wall of the main body (1).

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