Cold region crayfish larva transportation device

Abstract

The utility model discloses a cold-region crayfish seed transportation device, and belongs to the technical field of aquatic product transportation. The technical problem that the survival rate is low in the long-distance dry-method crayfish fry transportation process in northern cold regions is solved. A cold-region crayfish seed transporting device comprises a heat preservation box, a crayfish frame, an air pump, an oxygen pipe, an aeration disc and other core assemblies. A shrimp cavity is formed in the heat preservation box, the aeration disc is arranged at the bottom of the shrimp cavity in the horizontal direction, and the air pump is arranged on one side of the heat preservation box. An opening, an upper cover and a pipe orifice are arranged on the top surface of the heat preservation box, one side of the upper cover is hinged to one side of the opening, one end of the oxygen pipe penetrates through the pipe orifice to be connected with the aeration disc, and the other end of the oxygen pipe is connected with the air pump; the multi-layer shrimp frame is placed on the upper side of the aeration disc and comprises a frame and a shrimp net, the shrimp net surrounds the surface of the frame, a net opening and a net cover are arranged on the upper surface of the shrimp net, and one side of the net cover is hinged to one side of the net opening. The transportation survival rate of the young crayfish in the cold region is improved, and the method is used for long-distance transportation of the young crayfish.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cold land crayfish fry transport devices, belong to aquatic transportation technical field. BACKGROUND

[0002] Crayfish, scientific name Procambarus clarkii, is one of the most widely distributed and largest freshwater crayfish species in the world. In China, crayfish farming has become a pillar industry of freshwater aquaculture, with significant economic value. Although the average temperature in Northeast China is relatively low throughout the year and the winter is long, it has over 800 million mu of rice field resources, and the weather conditions from May to September are very suitable for the growth of crayfish, which provides great potential for the development of crayfish rice field farming. However, due to the fact that crayfish cannot naturally reproduce in cold regions in the north, the shortage of fry severely restricts the development of the crayfish industry in this region. In 2023, the Heilongjiang Aquatic Products Research Institute of the Chinese Aquatic Products Research Institute successfully broke through the technology of breeding crayfish fry in cold regions and innovatively established a "comprehensive breeding and farming 'north-south relay' mode" for crayfish in cold regions. This mode not only solves the problem of crayfish fry supply in cold regions, but also successfully selects the new type of "rice-fish integrated farming mode" in China due to its significant economic and ecological benefits, providing important technical support for the sustainable development of the crayfish industry in cold regions.

[0003] Fry transportation is a key link in the crayfish farming industry chain, directly affecting the survival rate of fry and the farming benefit. Currently, dry transportation is widely used in crayfish producing areas, which has the advantages of high transportation efficiency and low cost, and can meet the demand of large-scale fry transportation. However, this method has significant defects in long-distance transportation, mainly manifested in a significant decrease in the survival rate of fry after being released into water. Heilongjiang Province has a vast territory, and local cultivation of fry is difficult, resulting in a small number of fry enterprises. At the same time, the demand for developing crayfish farming industry is increasing in different parts of the province, and long-distance transportation of fry has become an inevitable reality. Under this background, how to improve the survival rate of crayfish fry in long-distance transportation has become a key technical bottleneck restricting the development of crayfish industry in cold regions in the north.

[0004] Therefore, in view of the low survival rate of crayfish fry in long-distance dry transportation in cold regions in the north, it is urgent to develop an efficient and reliable transportation device and technology to improve the survival rate of fry after transportation and promote the sustainable development of crayfish farming industry in cold regions. UTILITY MODEL CONTENTS

[0005] The utility model is to solve the technical problem of low survival rate of crayfish fry in long-distance dry transportation, and a cold land crayfish fry transport device is proposed, which comprises a heat preservation box, a shrimp frame, an air pump, an oxygen pipe and an aerator;

[0006] The incubator has a shrimp cavity inside, with an aeration disc arranged horizontally at the bottom of the shrimp cavity, and an air pump located on one side of the incubator.

[0007] The top surface of the incubator is provided with an opening, a top cover and a pipe opening. One side of the top cover is hinged to one side of the opening. One end of the oxygen pipe passes through the pipe opening and is connected to the aeration disc, and the other end of the oxygen pipe is connected to the air pump.

[0008] Several shrimp frames are placed on the upper side of the aeration plate. Each shrimp frame includes a frame and a shrimp net. The surface of the frame is surrounded by the shrimp net, and the upper surface of the shrimp net is provided with a net opening and a net cover. One side of the net cover is hinged to one side of the net opening.

[0009] As another improvement of this utility model, the aeration disc includes a steel frame, fixing rings and a bubble tube. Several fixing rings are fixed to the upper surface of the steel frame, and the bubble tube passes through several fixing rings. The bubble tube is fixed to the upper surface of the steel frame by the fixing rings, and one end of the oxygen tube passes through the pipe opening and is connected to the bubble tube.

[0010] As another improvement of this utility model, the bubble tube is provided with an air inlet, and the surface of the bubble tube is provided with multiple air outlets. One end of the oxygen tube passes through the tube opening and is connected to the air inlet of the bubble tube.

[0011] As another improvement of this utility model, the frame is rectangular in shape and the surface of the frame is coated with an anti-rust paint layer.

[0012] As another improvement of this utility model, the bottom surface of the frame is provided with longitudinal reinforcing ribs.

[0013] As another improvement of this utility model, a water outlet pipe is installed on the lower side of the insulated box, and a water outlet switch is installed on the water outlet pipe.

[0014] As another improvement of this utility model, an insulation layer is provided on the outer surface of the insulated box.

[0015] As another improvement of this utility model, the insulation layer is made of polyethylene foam.

[0016] As another improvement of this utility model, a handle is provided on the top cover of the insulated box.

[0017] As another improvement of this utility model, buckles are provided on the surface of the top cover and at the edge of the opening, and the top cover is locked by the buckles.

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model provides a cold-region crayfish larvae transportation device, which has a shrimp cavity inside the insulated box. An aeration plate is arranged horizontally at the bottom of the shrimp cavity, and an air pump is arranged on one side of the insulated box. Multiple shrimp frames are placed inside the shrimp cavity. Each shrimp frame consists of a frame and a shrimp net. By setting multiple shrimp frames in the insulated box, damage to the shrimp larvae caused by mutual squeezing during transportation is effectively avoided. At the same time, the aeration plate at the bottom of the shrimp frame can provide sufficient oxygen supply for the shrimp larvae, which significantly improves the survival rate of the shrimp larvae after long-distance transportation in cold regions.

[0020] 2. The cold-region crayfish seedling transportation device provided by this utility model significantly enhances the heat preservation effect of the device by setting up a heat preservation layer, effectively reducing the temperature stress response caused by temperature fluctuations during long-distance transportation of seedlings, thereby improving the survival rate of seedlings during transportation in cold regions.

[0021] 3. This device has a simple structure and low cost, making it suitable for large-scale shrimp larvae transportation and highly practical and economical. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a cold-region crayfish seedling transportation device according to this utility model.

[0023] Figure 2 This is a longitudinal sectional view of a cold-region crayfish seedling transportation device according to the present invention.

[0024] Figure 3 This is a side view of the shrimp basket.

[0025] Figure 4 yes Figure 3 Sectional view at point BB.

[0026] Figure 5 This is a top view of the aeration disc.

[0027] Figure 6 yes Figure 5 Sectional view at point AA. Detailed Implementation

[0028] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0029] Specific implementation method one: Combining Figures 1 to 6This embodiment describes a cold-region crayfish seedling transportation device, which includes an insulated box 1, a shrimp frame 2, an air pump 3, an oxygen pipe 4, and an aeration disc 5.

[0030] The incubator 1 has a shrimp cavity inside, and the aeration plate 5 is arranged horizontally at the bottom of the shrimp cavity. The air pump 3 is arranged on one side of the incubator 1. The incubator is a plastic box with dimensions of 140cm*70cm*50cm.

[0031] An opening 9, a top cover 10, and a pipe opening 11 are provided on the top surface of the insulated box 1. One side of the top cover 10 is hinged to one side of the opening 9. One end of the oxygen pipe 4 passes through the pipe opening 11 and is connected to the aeration disc 5. The other end of the oxygen pipe 4 is connected to the air pump 3.

[0032] Several shrimp frames 2 are placed on top of the aeration tray 5. Each shrimp frame 2 includes a frame 21 and a shrimp net 22. The surface of the frame 21 is surrounded by the shrimp net 22. The upper surface of the shrimp net 22 has a net opening and a net cover 23. One side of the net cover 23 is hinged to one side of the net opening. The frame is a solid steel frame with a diameter of 6mm and uses durable hinges for easy opening and closing. The dimensions of the frame are 60cm*40cm*10cm, and the shrimp net is 40 mesh.

[0033] The multiple shrimp frames set up in the insulated box prevent the shrimp larvae from being squeezed together during transportation. The multiple shrimp frames separate the shrimp larvae, preventing them from piling up, and the frames also provide some shock absorption when they come into contact. At the same time, the aeration plates at the bottom of the shrimp frames provide sufficient oxygen for the shrimp larvae. The overall structure improves the survival rate of shrimp larvae in cold regions.

[0034] Specific Implementation Method Two: Combining Figures 1 to 6 This embodiment differs from specific embodiment one in that the aeration tray 5 includes a steel frame 51, fixing rings 52, and air bubble tubes. Several fixing rings 52 are fixed to the upper surface of the steel frame 51. The air bubble tubes pass through the fixing rings 52 and are fixed to the upper surface of the steel frame 51. One end of the oxygen tube 4 passes through the tube opening 11 and connects to the air bubble tubes. Air bubble tubes are installed at the bottom of the shrimp frame to provide sufficient oxygen for the shrimp larvae. The overall structure improves the survival rate of shrimp larvae in cold regions. Other components and connection methods are the same as in specific embodiment one.

[0035] Specific implementation method three: Combining Figures 1 to 6 This embodiment differs from specific embodiment one in that the bubble tube has an air inlet and multiple air outlets on its surface. One end of the oxygen tube 4 passes through the tube opening 11 and connects to the air inlet of the bubble tube. This provides sufficient oxygen for the shrimp larvae, and the overall structure improves the survival rate of the shrimp larvae in cold regions. Other components and connection methods are the same as in specific embodiment one or two.

[0036] Specific implementation method four: CombinationFigures 1 to 6 This embodiment differs from specific embodiment one in that the frame 21 is rectangular in shape and its surface is coated with an anti-rust paint layer. This design improves the reliability and service life of the frame 21. Other components and connection methods are the same as in any one of specific embodiments one to three.

[0037] Specific Implementation Method Five: Combining Figures 1 to 6 This embodiment differs from specific embodiment one in that the bottom surface of frame 21 is provided with longitudinal reinforcing ribs. This design improves the reliability and service life of frame 21. Other components and connection methods are the same as any one of specific embodiments one through four.

[0038] Specific Implementation Method Six: Combination Figures 1 to 6 This embodiment differs from specific embodiment one in that a water outlet pipe 6 is installed on the lower side of the insulated box 1, and a water outlet switch is installed on the water outlet pipe 6. This design aims to improve water exchange efficiency. Other components and connection methods are the same as any one of specific embodiments one through five.

[0039] Specific implementation method seven: Combination Figures 1 to 6 This embodiment differs from specific embodiment one in that an insulation layer is provided on the outer surface of the insulated box 1. This design enhances the insulation effect of the insulated box, improving the survival rate of shrimp larvae in cold regions. Other components and connection methods are the same as any one of specific embodiments one through six.

[0040] Specific implementation method eight: Combination Figures 1 to 6 This embodiment differs from specific embodiment one in that the insulation layer uses a polyethylene foam layer. This design enhances the insulation effect of the incubator, improving the survival rate of shrimp larvae in cold regions. Other components and connection methods are the same as any one of specific embodiments one through seven.

[0041] Specific Implementation Method Nine: Combining Figures 1 to 6 This embodiment differs from specific embodiment one in that a handle 7 is provided on the upper cover 10 of the insulated box 1. Other components and connection methods are the same as any one of specific embodiments one through eight.

[0042] Specific Implementation Method Ten: Combining Figures 1 to 6 This embodiment differs from specific embodiment one in that it has latches 8 on both the surface of the upper cover 10 and the edge of the opening 9, which are used to lock the upper cover 10 in place. Other components and connection methods are the same as any one of specific embodiments one through nine.

[0043] Combination Figures 1 to 6Explanation of the working principle of this utility model:

[0044] The incubator has a shrimp cavity inside, with an aeration plate arranged horizontally at the bottom of the cavity and an air pump located on one side of the incubator. Several shrimp frames are placed on top of the aeration plate. Each shrimp frame consists of a frame and a net. The multiple shrimp frames in the incubator prevent the shrimp larvae from being squeezed together during transportation. At the same time, the aeration plate at the bottom of the shrimp frame provides sufficient oxygen for the shrimp larvae, improving their survival rate in cold regions.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for transporting crayfish larvae in cold regions, characterized in that... It includes an insulated box (1), a shrimp basket (2), an air pump (3), an oxygen tube (4), and an aeration tray (5); The insulated box (1) has a shrimp cavity inside, the aeration plate (5) is arranged horizontally at the bottom of the shrimp cavity, and the air pump (3) is arranged on one side of the insulated box (1). An opening (9), a top cover (10), and a pipe opening (11) are provided on the top surface of the insulated box (1). One side of the top cover (10) is hinged to one side of the opening (9). One end of the oxygen pipe (4) passes through the pipe opening (11) and is connected to the aeration disc (5). The other end of the oxygen pipe (4) is connected to the air pump (3). Several shrimp frames (2) are placed on the upper side of the aeration plate (5). The shrimp frame (2) includes a frame (21) and a shrimp net (22). The surface of the frame (21) is surrounded by the shrimp net (22). The upper surface of the shrimp net (22) is provided with a net opening and a net cover (23). One side of the net cover (23) is hinged to one side of the net opening.

2. The cold-region crayfish seedling transportation device according to claim 1, characterized in that, The aeration disc (5) includes a steel frame (51), fixing rings (52) and a bubble tube. Several fixing rings (52) are fixed on the upper surface of the steel frame (51). The bubble tube passes through several fixing rings (52) and is fixed on the upper surface of the steel frame (51) by the fixing rings (52). One end of the oxygen tube (4) passes through the pipe opening (11) and is connected to the bubble tube.

3. The cold-region crayfish seedling transportation device according to claim 2, characterized in that, The bubble tube is equipped with an air inlet and multiple air outlets on its surface. One end of the oxygen tube (4) passes through the tube opening (11) and is connected to the air inlet of the bubble tube.

4. The cold-region crayfish seedling transportation device according to claim 1, characterized in that, The frame (21) is rectangular in shape and its surface is coated with anti-rust paint.

5. The cold-region crayfish seedling transportation device according to claim 4, characterized in that, The bottom surface of the frame (21) is provided with longitudinal reinforcing bars.

6. The cold-region crayfish seedling transportation device according to claim 1, characterized in that, A water outlet pipe (6) is installed on the lower side of the insulated box (1), and a water outlet switch is installed on the water outlet pipe (6).

7. The cold-region crayfish seedling transportation device according to claim 1, characterized in that, The outer surface of the insulated box (1) is provided with an insulation layer.

8. A cold-region crayfish seedling transportation device according to claim 7, characterized in that, The insulation layer is made of polyethylene foam.

9. A cold-region crayfish seedling transportation device according to claim 1, characterized in that, A handle (7) is provided on the top cover (10) of the insulated box (1).

10. A cold-region crayfish seedling transportation device according to claim 1, characterized in that, The top cover (10) surface and the edge of the opening (9) are provided with buckles (8) to lock the top cover (10).

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