Aquatic firefly larva rearing cage
By setting up upper, middle and lower filters in the aquatic firefly larvae feeding cage, the pore size difference is used to achieve automatic transfer of larvae, which solves the problem of cumbersome and damage of artificial larvae picking in the prior art, and improves survival rate and production efficiency. It also provides oxygen through hollow pipes to ensure the suitability of water quality.
Patent Information
- Application Number
- CN202420934189.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The existing aquatic firefly larvae feeding device has cumbersome operations to manually pick larvae during cleaning and transfer, which can easily cause larvae damage, affect survival rate, and be difficult to clean food residues and feces, which affects production efficiency.
A water-borne firefly larvae breeding cage was designed. By setting up an upper filter, a middle filter and a lower filter, the larvae are transferred from the lower filter to the upper filter when replacing it, and automatic transfer is achieved using the difference in pore size to avoid manual picking. , ensure the safety of the larvae.
The larvae transfer without artificial picking is achieved, which reduces labor load, increases the survival rate of larvae, and provides oxygen through hollow pipes, ensuring the suitability of water quality and saving cleaning and feeding costs.
Smart Images
Figure CN222170967U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of insect breeding, and more specifically to a cage for breeding aquatic firefly larvae. Background Art
[0002] Fireflies are a general term for species of the Lampyridae and Lampyridae families of the Polyphagous suborder of the Coleoptera. Fireflies are holometabolous insects, and their life is divided into four stages: egg-larva-pupa-adult. Most of them can emit light in each stage. They are famous luminous insects and a type of resource insects with high industrial value. In recent years, due to environmental deterioration and artificial capture, the population of fireflies has rapidly decreased, and many species are on the verge of extinction. Artificial breeding of fireflies has become the best way to protect and utilize fireflies. Fireflies are divided into three categories according to the living environment of the larvae: terrestrial, aquatic and semi-aquatic. Among them, aquatic fireflies are a type of fireflies with relatively mature artificial breeding technology. In nature, the larvae of aquatic fireflies live in water, in streams or rice fields, and have very high requirements for water quality. The existing large-scale breeding of aquatic fireflies mostly uses automated water treatment equipment, which can realize automatic water change during the breeding process. However, there are still some problems in the large-scale breeding of aquatic fireflies, which affect production efficiency and survival rate. Mainly because the larvae of aquatic fireflies are very small, and the body width of the larvae is mostly between 1-5mm, the existing breeding methods are mostly to feed the firefly larvae directly with snail meat in the breeding box. On the one hand, due to the high density of artificial breeding of firefly larvae, food residues, insect molts and feces are scattered in every corner of the breeding box, mixed with the firefly larvae, making it difficult to clean. On the other hand, due to the small number of firefly larvae, during the cleaning and replacement process of the breeding box, the firefly larvae are mixed with food residues, insect molts and feces, and the larvae need to be manually picked and transferred, which is easy to cause damage to the firefly larvae, and is labor-intensive and time-consuming, which is not conducive to large-scale breeding.
[0003] There is a Chinese invention with publication number CN111280132A, which discloses a firefly larvae breeding device, including a breeding box, an adjustment mechanism, a feeding mechanism and a humidifying mechanism. The top of the breeding box is rotatably connected with a cover plate through a hinge, the upper and lower parts of the breeding box are respectively provided with a storage slot and a driving slot, the bottom of the inner circumference of the storage slot is provided with an adaptive adjustment mechanism, a side of the lower half of the storage slot away from the adjustment mechanism is provided with multiple groups of limit slots, and a feeding mechanism adapted to the adjustment mechanism is provided in the limit slot, a flap is rotatably connected to the side of the breeding box close to the limit slot, a humidifying mechanism that penetrates the breeding box and is connected to the bottom of the cover plate is provided in the driving slot, a sewage pipe and a water supply pipe connected to the humidifying mechanism are respectively installed on one side of the storage slot and the lower half of the driving slot through fasteners, and a baffle is installed on the side of the breeding box close to the driving slot. The firefly larvae breeding device can be adjusted according to the required breeding environment and is convenient for feeding.
[0004] In the above technical solution, there is no cleaning device in the breeding box, and the excrement of the larvae in the breeding box has to be cleaned manually. If you want to clean the breeding box, you need to transfer the firefly larvae out and then clean them. Transferring the larvae requires manual picking, which is extremely cumbersome and takes up a lot of working time of the breeders. In addition, the operation of transferring the larvae is relatively delicate, and excessive force may cause damage to the larvae and affect the survival rate of the larvae. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides an aquatic firefly larvae breeding cage, which is provided with an upper filter, a middle filter and a lower filter. When replacement is needed, the breeding cage only needs to be inverted, and the larvae will fall on the middle filter. The larvae crawl through the middle filter and fall on the inverted upper filter, and then the lower filter and the middle filter are removed to realize the transfer of the firefly larvae. In this process, no manual picking is required, and no damage is caused to the larvae, thereby ensuring the survival rate of the larvae.
[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: an aquatic firefly larvae breeding cage, comprising an outer cylinder, an upper filter screen, a middle filter screen and a lower filter screen, the outer cylinder is a cylindrical structure with two ends open, the upper filter screen, the middle filter screen and the lower filter screen are detachably installed in the outer cylinder from top to bottom, the outer edges of the upper filter screen, the middle filter screen and the lower filter screen are respectively in contact with the inner wall surface of the outer cylinder; the aperture of the middle filter screen is larger than the aperture of the upper filter screen and the lower filter screen.
[0007] In this technical solution, during daily feeding, it is only necessary to install the lower filter screen on the lower end of the outer cylinder, soak the lower filter screen in water, and put the feed and firefly larvae on the lower filter screen, so that the larvae can grow on the lower filter screen. The outer cylinder surrounds the lower filter screen to form a semi-enclosed feeding space, and the activity range of the firefly larvae is limited to the feeding space, ensuring that the firefly larvae will not escape. During the growth of the firefly larvae, the food residues, molts and feces produced will affect the growth environment of the firefly larvae, so the lower filter screen needs to be replaced frequently. Before replacing the lower filter screen, the firefly larvae growing on the lower filter screen need to be transferred first. When the lower filter screen needs to be replaced, the middle filter screen and the upper filter screen are installed in the middle and upper ends of the outer cylinder, and the outer cylinder becomes a cylindrical structure with closed ends, ensuring that the firefly larvae are confined in a closed space when the firefly larvae are transferred and will not escape. The middle filter screen divides the inner space of the outer cylinder into two parts. The space between the middle filter screen and the lower filter screen is the polluted space, and the space between the middle filter screen and the upper filter screen is the clean space. Since the aperture of the middle filter screen is larger than the aperture of the upper filter screen and the lower filter screen, the aquatic firefly larvae can only pass through the middle filter screen but cannot pass through the upper filter screen and the lower filter screen. Then, the outer cylinder is inverted, and the arrangement order from top to bottom in the outer cylinder becomes the lower filter screen, the middle filter screen and the upper filter screen. The molts and feces attached to the lower filter screen will not move, while the food residues and the firefly larvae fall on the middle filter screen under the action of gravity. After falling on the middle filter screen, the food residues will not move again, and the firefly larvae will pass through the middle filter screen and fall on the upper filter screen under the action of their own instinct, thereby realizing the transfer of the firefly larvae from the lower filter screen to the upper filter screen. In this process, the middle filter plays a role in isolating food residues and preventing firefly larvae from falling too high and causing damage. After all the larvae have passed through the middle filter, the middle filter and the lower filter are removed, and the upper filter becomes the new lower filter, entering a new feeding cycle. The removed middle filter and the lower filter can be cleaned repeatedly and reused after cleaning, saving feeding costs. In the entire process of transferring the firefly larvae from the lower filter to the upper filter, it is only necessary to manually invert the outer cylinder, and the rest of the process depends on the firefly larvae's own instincts. There is no need to manually pick the firefly larvae one by one, which reduces the labor load of the manual labor and avoids damage to the firefly larvae when picking the firefly larvae manually, which affects the survival rate of the firefly larvae.
[0008] Preferably, the upper filter screen, the middle filter screen and the lower filter screen are respectively provided with hooks, and the outer cylinder is respectively provided with snap rings adapted to the positions of the snap hooks at the connection with the filter screen, the middle filter screen and the lower filter screen, and the snap hooks are hooked into the snap rings.
[0009] Preferably, the breeding cage further comprises a hollow tube, the hollow tube passes through the upper filter screen, the middle filter screen and the lower filter screen, the upper end of the hollow tube is connected to the oxygen tube, and ventilation holes are arranged on the peripheral surface of the hollow tube.
[0010] Preferably, the upper filter screen, the middle filter screen and the lower filter screen are all provided with a central hole, and the hollow tube passes through each of the central holes in sequence and is connected to the upper filter screen, the middle filter screen and the lower filter screen.
[0011] Preferably, the diameter of the vent hole is between 0.2 mm and 0.5 mm.
[0012] Preferably, a clamping groove is provided on the outer wall surface of the hollow tube, a resting platform is clamped on the clamping groove, and the resting platform is located on the lower filter net.
[0013] Preferably, a water leakage hole is provided on the wall of the outer cylinder.
[0014] Preferably, handles are provided on the outer wall surfaces at both ends of the outer cylinder.
[0015] Preferably, it is characterized in that the mesh diameters of the upper filter screen and the lower filter screen are between 0.2 mm and 0.5 mm.
[0016] Preferably, the mesh size of the middle filter is between 0.6 mm and 6 mm.
[0017] Compared with the prior art, the beneficial effects of the technical solution are as follows: an upper filter screen, a middle filter screen and a lower filter screen are arranged in sequence in the vertical direction in the outer cylinder. When transferring firefly larvae, it is only necessary to invert the outer cylinder so that the firefly larvae can be spontaneously transferred from the lower filter screen to the upper filter screen. There is no need to manually pick the firefly larvae one by one, which reduces the labor load of the manual labor and avoids damage to the firefly larvae when picking the firefly larvae manually, thereby affecting the survival rate of the firefly larvae. The upper filter screen, the middle filter screen and the lower filter screen are connected by a clamp ring and a clamp hook, which is easy to disassemble and replace. A hollow pipe is provided to allow oxygen to be introduced into the water, ensuring that the oxygen content in the water is within a range suitable for the growth of firefly larvae. A card slot is provided on the hollow tube to prevent a resting platform. In addition to staying in the water, the firefly larvae can also rest on the resting platform. A handle is also provided on the outer cylinder to facilitate taking the breeding cage. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the aquatic firefly larvae breeding cage of the utility model;
[0019] Figure 2It is a schematic diagram of the outer cylinder of the aquatic firefly larvae breeding cage of the utility model;
[0020] Figure 3 It is a schematic diagram of a hollow tube of the aquatic firefly larvae breeding cage of the utility model;
[0021] Figure 4 The utility model is a three-dimensional diagram of an upper filter screen, a middle filter screen or a lower filter screen of an aquatic firefly larvae breeding cage.
[0022] In the attached figure: 1. outer cylinder; 2. upper filter screen; 3. middle filter screen; 4. lower filter screen; 5. hook; 6. snap ring; 7. center hole; 8. hollow tube; 9. rest platform; 10. handle; 11. water leakage hole; 81. slot; 82. vent hole. DETAILED DESCRIPTION
[0023] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.
[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0025] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:
[0026] Example 1
[0027] like Figure 1As shown, an aquatic firefly larvae breeding cage is characterized in that it includes an outer cylinder 1, an upper filter screen 2, a middle filter screen 3 and a lower filter screen 4. The outer cylinder 1 is a cylindrical structure with both ends open. The upper filter screen 2, the middle filter screen 3 and the lower filter screen 4 are detachably installed in the outer cylinder 1 from top to bottom, and the outer edges of the upper filter screen 2, the middle filter screen 3 and the lower filter screen 4 are in contact with the inner wall surface of the outer cylinder 1 respectively. During daily breeding, it is only necessary to install the lower filter screen 4 at the lower end of the outer cylinder 1, soak the lower filter screen 4 in water, and put the feed and firefly larvae on the lower filter screen 4, so that the larvae can grow on the lower filter screen 4. The outer cylinder 1 encloses the lower filter screen 4 to form a semi-enclosed breeding space. The activity range of the firefly larvae is limited to the breeding space, ensuring that the firefly larvae will not escape. During the growth of firefly larvae, food residues, molts and feces will be produced, which will affect the growth environment of firefly larvae, so the lower filter screen 4 needs to be replaced frequently. Before replacing the lower filter screen 4, the firefly larvae growing on the lower filter screen 4 need to be transferred first. When the lower filter screen 4 needs to be replaced, the middle filter screen 3 and the upper filter screen 2 are installed in the middle and upper ends of the outer tube 1. At this time, the outer tube 1 becomes a cylindrical structure with closed ends, ensuring that the firefly larvae are confined in a closed space and will not escape when the firefly larvae are transferred. The middle filter screen 3 divides the inner space of the outer tube 1 into two parts. The space between the middle filter screen 3 and the lower filter screen 4 is a polluted space, and the space between the middle filter screen 3 and the upper filter screen 2 is a clean space. Since the aperture of the middle filter 3 is larger than that of the upper filter 2 and the lower filter 4, the aquatic firefly larvae can only pass through the middle filter 3 but cannot pass through the upper filter 2 and the lower filter 4. Then, the outer cylinder 1 is inverted, and the arrangement order from top to bottom in the outer cylinder 1 becomes the lower filter 4, the middle filter 3 and the upper filter 2. The exuvia and feces attached to the lower filter 4 will not move, while the food residues and the firefly larvae fall on the middle filter 3 under the action of gravity. After falling on the middle filter 3, the food residues will not move again, and the firefly larvae will pass through the middle filter 3 and fall on the upper filter 2 under their own instinct, thereby realizing the transfer of the firefly larvae from the lower filter 4 to the upper filter 2. In this process, the middle filter 3 plays a role in isolating food residues and preventing the firefly larvae from falling too high and causing damage. After all the larvae have passed through the middle filter 3, the middle filter 3 and the lower filter 4 are removed, and the upper filter 2 becomes the new lower filter 4, and a new feeding cycle begins. The removed middle filter 3 and the lower filter 4 can be repeatedly cleaned and reused after being cleaned, saving feeding costs.During the entire process of transferring the firefly larvae from the lower filter screen 4 to the upper filter screen 2, it is only necessary to manually invert the outer cylinder 1, and the remaining process depends on the instinct of the firefly larvae themselves. There is no need to manually pick the firefly larvae one by one, which reduces the labor load of manual labor and avoids damage to the firefly larvae when manually picking the firefly larvae, thereby affecting the survival rate of the firefly larvae.
[0028] like Figure 2 , Figure 4 As shown, the upper filter screen 2, the middle filter screen 3 and the lower filter screen 4 are respectively provided with hooks 5, and the outer cylinder 1 is respectively provided with snap rings 6 adapted to the position of the hooks 5 at the connection with the filter screen 2, the middle filter screen 3 and the lower filter screen 4, and the hooks 5 are hooked into the snap rings 6. When installing the upper filter screen 2, the middle filter screen 3 or the lower filter screen 4, it is only necessary to hook the hooks 5 into the snap rings 5 on the outer cylinder 1 to achieve installation. The connection between the hooks 5 and the snap rings 6 is easy to disassemble, which is convenient for replacing the upper filter screen 2, the middle filter screen 3 and the lower filter screen 4. There are multiple hooks 5 and snap rings 6 evenly arranged on the same horizontal plane, ensuring that the upper filter screen 2, the middle filter screen 3 and the lower filter screen 4 can be evenly carried.
[0029] like Figure 1 As shown, the breeding cage also includes a hollow tube 8, which runs through the upper filter screen 2, the middle filter screen 3 and the lower filter screen 4, and the upper end of the hollow tube 8 is connected to the oxygen tube, and a vent 82 is provided on the circumference of the hollow tube 8. The density of the aquatic firefly larvae in the breeding cage is relatively large, and the oxygen consumption is relatively high. It is difficult to meet the breeding needs of the aquatic firefly larvae by relying solely on the air circulating in the breeding cage and the oxygen dissolved in the water under the natural state. The hollow tube 8 can introduce oxygen into the breeding cage through the oxygen tube to ensure that the oxygen content in the breeding cage is at an appropriate level. The circumference of the hollow tube 8 is also provided with a vent 82 to ensure that the input oxygen is evenly distributed.
[0030] like Figure 1 , Figure 4 As shown, the upper filter screen 2, the middle filter screen 3 and the lower filter screen 4 are all provided with a central hole 7, and the hollow tube 8 sequentially penetrates each central hole 7 and is connected with the upper filter screen 2, the middle filter screen 3 and the lower filter screen 4. The central hole 7 provided in the upper filter screen 2, the middle filter screen 3 and the lower filter screen 4 is a flow channel for the hollow tube 8 to pass through on the one hand, and plays a supporting and fixing role on the position of the hollow tube 8 on the other hand.
[0031] like Figure 3 As shown, the aperture of the vent hole 82 is between 0.2 mm and 0.5 mm. The vent hole 82 in this interval not only ensures the permeability of oxygen to the greatest extent, but also effectively prevents aquatic firefly larvae, food residues, molts and feces from entering the hollow tube 8.
[0032] like Figure 3 As shown, a slot 81 is provided on the outer wall of the hollow tube 8, and a resting platform 9 is clamped on the slot 81, and the resting platform 9 is located on the lower filter screen 4. The slot 81 is detachably connected to the resting platform 9, which is convenient for disassembly and replacement of the resting platform 9. The resting platform 9 can provide a place for aquatic firefly larvae in the water body to stay and hide.
[0033] Example 2
[0034] This embodiment is similar to the above-mentioned embodiment 1, except that: Figure 2 As shown, a water leakage hole is provided on the wall of the outer tube 1. Providing a water leakage hole on the wall of the outer tube 1 can enhance the fluidity of water, making it easier for the water in the breeding cage to flow and exchange with the outside, and avoiding water pollution caused by the long-term presence of water in the breeding cage. The hole diameter of the water leakage hole is between 0.2mm and 0.5mm, ensuring that the aquatic firefly larvae cannot pass through while not affecting the water entering the outer tube 1.
[0035] like Figure 1 As shown, handles 10 are also provided on the outer wall surfaces at both ends of the outer cylinder 1. The handles 10 facilitate the user to extract and turn over the outer cylinder 1.
[0036] Example 3
[0037] This embodiment is similar to the above-mentioned embodiment 1, except that: Figure 4 As shown, the mesh apertures of the upper filter 2 and the lower filter 3 are between 0.2 mm and 0.5 mm. The mesh apertures in this range ensure that the aquatic firefly larvae cannot pass through while maximally ensuring that the water can only pass through the upper filter 2 and the lower filter 3.
[0038] like Figure 4 As shown, the mesh aperture of the middle filter 3 is between 0.6 mm and 6 mm. The mesh aperture in this interval ensures that the aquatic firefly larvae can pass through while isolating food residues, feces and exuviae of the aquatic firefly larvae.
[0039] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.
Claims
1. A cage for raising aquatic firefly larvae, characterized in that: The invention comprises an outer cylinder (1), an upper filter screen (2), a middle filter screen (3) and a lower filter screen (4); the outer cylinder (1) is a cylindrical structure with two ends open; the upper filter screen (2), the middle filter screen (3) and the lower filter screen (4) are detachably installed in the outer cylinder (1) from top to bottom; the outer edges of the upper filter screen (2), the middle filter screen (3) and the lower filter screen (4) are respectively in contact with the inner wall surface of the outer cylinder (1); the aperture of the middle filter screen (3) is larger than the apertures of the upper filter screen (2) and the lower filter screen (4).
2. The aquatic firefly larvae breeding cage according to claim 1, characterized in that: The upper filter screen (2), the middle filter screen (3) and the lower filter screen (4) are respectively provided with hooks (5); the outer cylinder (1) is respectively provided with snap rings (6) adapted to the positions of the snap hooks (5) at the connection points with the upper filter screen (2), the middle filter screen (3) and the lower filter screen (4); the snap hooks (5) are hooked into the snap rings (6).
3. The aquatic firefly larvae breeding cage according to claim 1, characterized in that: The breeding cage also includes a hollow tube (8), which passes through the upper filter screen (2), the middle filter screen (3) and the lower filter screen (4), the upper end of the hollow tube (8) is connected to the oxygen tube, and a vent hole (82) is provided on the circumference of the hollow tube (8).
4. The aquatic firefly larvae breeding cage according to claim 3, characterized in that: The upper filter screen (2), the middle filter screen (3) and the lower filter screen (4) are all provided with a central hole (7), and the hollow tube (8) passes through each of the central holes (7) in sequence and is connected to the upper filter screen (2), the middle filter screen (3) and the lower filter screen (4).
5. The aquatic firefly larvae breeding cage according to claim 3, characterized in that: The diameter of the vent hole (82) is between 0.2 mm and 0.5 mm.
6. The aquatic firefly larvae breeding cage according to claim 3, characterized in that: A clamping groove (81) is provided on the outer wall surface of the hollow tube (8), a resting platform (9) is clamped on the clamping groove (81), and the resting platform (9) is located on the lower filter screen (4).
7. The aquatic firefly larvae breeding cage according to claim 1, characterized in that: A water leakage hole (11) is provided on the wall of the outer cylinder (1).
8. The aquatic firefly larvae breeding cage according to claim 1, characterized in that: Handles (10) are also provided on the outer wall surfaces at both ends of the outer cylinder (1).
9. An aquatic firefly larvae breeding cage according to any one of claims 1 to 8, characterized in that: The mesh diameters of the upper filter screen (2) and the lower filter screen (4) are between 0.2 mm and 0.5 mm.
10. The aquatic firefly larvae breeding cage according to claim 9, characterized in that: The mesh size of the middle filter (3) is between 0.6 mm and 6 mm.