Dual-effect oviposition device for black soldier fly based on foldable oviposition plate

Abstract

The utility model discloses a double -effect trapping black soldier fly oviposition device based on collapsible oviposition board, including the decoy box and collapsible oviposition board, the decoy box is from below and has in proper order set up the decoy material holding groove, the bearing net and the top cover, the decoy material holding groove is the drawer type structure, the top surface of decoy material holding groove is provided with the breathable opening, collapsible oviposition board movable place in bearing net top, the outer surface of top cover is installed the light source, collapsible oviposition board is by rigid base plate through the flexible connecting material and is wrapped and is spliced sutured and is formed, has the unfolded state and the folding state. This device can solve the problem that black soldier fly oviposition does not concentrate, simple operation can reduce insect egg mechanical damage, greatly improved the efficiency of black soldier fly oviposition and egg mass collection.

Description

Technical Field

[0001] This utility model relates to black soldier fly farming, specifically to a dual-effect black soldier fly egg-laying device based on a foldable egg-laying plate. Background Technology

[0002] Black soldier fly Hermetia illucens Black soldier flies are saprophytic insects whose larvae can efficiently convert organic waste into high-protein feed. In large-scale black soldier fly farming, the collection of adult eggs is a crucial step. Black soldier fly egg-laying exhibits three core characteristics: latitudination, aggregation, and attraction to decay and darkness.

[0003] Existing methods for inducing black soldier fly oviposition typically involve placing containers filled with attractants in a fixed area, surrounded by oviposition devices bound with corrugated cardboard or wooden strips. While inexpensive, this method requires repeated manual disassembly and reassembly, and is prone to damage during manual scraping of egg masses, resulting in low efficiency. Traditional egg collection devices, though simple, lack visual attraction, relying solely on odor attraction and failing to fully utilize the phototaxis of adult black soldier flies. Furthermore, they have low utilization rates of the oviposition surface, with the collection plates often being fixed structures, limiting the effective oviposition area. Additionally, their poor operability and complex collection process make it difficult to achieve high-frequency, short-cycle cyclic collection. Therefore, there is an urgent need for a novel black soldier fly oviposition device that integrates light and air attraction, features a foldable oviposition plate, and is easy to operate, to solve the problems of scattered oviposition, low collection efficiency, and easy egg damage. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide a dual-effect trapping device for black soldier fly oviposition based on a foldable oviposition board. This device achieves a balance between efficient and harmless collection of insect eggs and convenient operation through the innovative combination of odor-optical synergistic attraction and a foldable oviposition board.

[0005] Technical Solution: The dual-effect black soldier fly spawning attractor based on a foldable oviposition board of this utility model includes an attraction box and a foldable oviposition board; the attraction box is provided with an attraction container, a support net, and a top cover in sequence from bottom to top; the attraction container has a drawer-type structure; the top surface of the attraction container has a ventilation opening; the foldable oviposition board is movably placed above the support net; a light source is installed on the outer surface of the top cover; the foldable oviposition board is made of a rigid substrate wrapped and stitched together with a flexible connecting material, and has an unfolded state and a folded state.

[0006] Preferably, the lure box has a rectangular structure and is made of food-grade PP plastic. The side walls of the lure box are transparent. The four corners of the bottom of the lure box are provided with anti-slip feet, and the side walls are provided with hanging hooks.

[0007] Preferably, the attractant holding tank has a drawer-type structure, with a vent opening on the top surface that is a strip-shaped slit, and an embedded sealing handle installed in the center of the outer wall of the front panel of the tank.

[0008] Preferably, the light source is an LED attractant light.

[0009] Preferably, the lower surface of the top cover is provided with multiple circular grooves, and the LED attractant lights are green lights adapted to the circular grooves and are arranged in an array. The LED attractant lights are surface-mount LED beads, and the LED attractant lights are fixed in the circular grooves with thermally conductive adhesive. The number of circular grooves and LED attractant lights can be adjusted according to the size of the attractant box and the requirements.

[0010] Preferably, the top surface of the attractant holding tank has multiple parallel and evenly spaced ventilation openings. These ventilation openings are horizontally extending strip-shaped openings, each with a width of 8-12 mm and a center-to-center distance of 8-12 mm between adjacent openings. More preferably, each opening has a width of 10 mm and a center-to-center distance of 10 mm between adjacent openings. The number of ventilation openings can be adjusted according to the size of the attractant box and other requirements.

[0011] Preferably, the foldable oviposition board is in a stacked corrugated shape when folded, and in an unfolded state, each rigid substrate is unfolded to the same plane through a flexible connecting material, forming an overall planar rectangle.

[0012] Preferably, the rigid substrate is a rectangular wooden board, and the flexible connecting material is nylon cloth. After the nylon cloth wraps around a single wooden board, adjacent wooden boards are separated by stitching lines, and the center-to-center distance between adjacent wooden boards is 15-25 mm. More preferably, the center-to-center distance between adjacent wooden boards is 20 mm.

[0013] Preferably, the supporting net is a metal woven mesh with a mesh size of 5-15 mm, and the bottom surface of the foldable oviposition board is in direct contact with the top surface of the supporting net. The supporting net is horizontally fixed above the attractant holding trough by a snap-fit ​​structure, maintaining a vertical distance of 30 mm from the top surface of the trough.

[0014] Preferably, the LED attractant lamp uses green PMD LEDs with a wavelength of 530-540 nm and a power of 0.5-2 W, and each LED attractant lamp is equipped with an independent focusing lens. More preferably, the LED attractant lamp uses green PMD LEDs with a wavelength of 535 nm.

[0015] Preferably, the outer surface of the top cover is bright yellow. Preferably, the outer surface of the top cover is made of bright yellow plastic sheet.

[0016] Preferably, the attractant box has a cuboid structure, and the area of ​​the foldable oviposition board accounts for 70%-90% of the area of ​​the support net.

[0017] The method for collecting black soldier fly eggs using the device includes the following steps: placing the attractant in the attractant container and turning on the power to the LED attractant lamp; after the black soldier flies lay eggs on the foldable oviposition board, removing the foldable oviposition board from the attractant box and unfolding it; vibrating or tilting the unfolded foldable oviposition board to collect the eggs; and refolding the foldable oviposition board after emptying it of eggs and returning it to the attractant box for reuse.

[0018] The device works in the following ways: the LED attractant light and the bright yellow cover form a dual attraction of light and color; the scent of the attractant diffuses vertically upward through the ventilation opening, passes through the support net and acts directly on the foldable oviposition board; after the black soldier fly adults lay eggs in the gaps and on the surface of the oviposition board, they take out the foldable oviposition board as a whole and unfold it, and collect the eggs naturally by shaking or tilting it slightly.

[0019] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0020] (1) The attraction efficiency is significantly improved. The bottom ventilation opening and the top LED green light and bright yellow cover form a three-dimensional attraction system, which not only utilizes the black soldier fly's attraction to putrid odors, but also stimulates its phototactic response to specific wavelengths of light and bright yellow, greatly improving the concentration of egg production.

[0021] (2) Egg collection is undamaged. The traditional mechanical scraping method is abandoned. The foldable egg-laying plate is taken out and unfolded as a whole. Gravity and slight vibration can make the eggs fall off naturally, improving the egg integrity rate and avoiding the decrease in hatching rate caused by mechanical damage.

[0022] (3) Revolutionary improvement in ease of operation: The foldable egg-laying board adopts a "corrugated folding-flat unfolding" design, which shortens the time for a single egg collection from 10-15 minutes in the traditional method to within 2 minutes, and does not require disassembling any fixed parts of the device, supporting high-frequency cyclic operation.

[0023] (4) Low maintenance cost: The egg-laying board is made of wood and nylon cloth sewn together. The materials are readily available and can be reused. The LED lights and attractant holding tank are independently modularized, making replacement and maintenance simple and reducing the cost of use.

[0024] The device described in this utility model has a simple structure and high functional integration, effectively solving the core pain points of "difficulty in attracting, slow collection, and great damage" in black soldier fly farming, and has good application and promotion prospects. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a longitudinal sectional view of the present invention.

[0027] Figure 3 This is a bottom view of the lure holding tank of this utility model.

[0028] Figure 4 This is a bottom view of the support net of this utility model.

[0029] Figure 5 This is a bottom view of the top cover of this utility model.

[0030] Figure 6 This is a schematic diagram of the folded state of the foldable oviposition board of this utility model.

[0031] Figure 7 This is a schematic diagram of the unfolded state of the foldable oviposition board of this utility model.

[0032] In the diagram, 1-attractant box; 2-foldable oviposition board; 11-attractant container; 111-container; 112-ventilation opening; 113-sealing handle; 114-anti-slip mat; 12-support net; 13-top cover; 131-circular groove; 14-LED attractant light; 21-wooden board; 22-nylon cloth; 23-sewing thread; 24-rubber band. Detailed Implementation

[0033] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0034] like Figures 1 to 7 As shown, this utility model discloses a device for attracting black soldier fly larvae to lay eggs, comprising: an attraction box 1 and a foldable egg-laying plate 2. The attraction box 1 has, from bottom to top, an attraction container 11, a support net 12, and a top cover 13. The attraction container 11, the support net 12, and the top cover 13 form a three-layer modular structure. The foldable egg-laying plate 2 is movably placed above the support net 12 and is not fixedly connected to the attraction box 1, enabling quick and easy placement and removal.

[0035] The attractant container 11 has a drawer-type structure, consisting of a container body 111 and a sealed handle 113. This ensures smooth and wobbly operation. A sealed handle 113 is installed in the center of the outer wall of the front panel of the container body. The handle is made of silicone plastic with a non-slip knurled texture. Non-slip pads 114 are adhered to the four corners of the bottom surface of the container to prevent slippage during operation.

[0036] The top surface of the attractant holding tank 11 has five ventilation openings 112. Each ventilation opening 112 is a strip-shaped slit, 10 mm wide and 150 mm long, with a center-to-center distance of 10 mm between adjacent slits. The ventilation openings 112 are parallel to the long side of the attractant box 1, allowing the attractant odor to penetrate the supporting net 12 vertically upwards and evenly, thus improving diffusion efficiency.

[0037] The support mesh 12 is made of 304 stainless steel woven mesh with a mesh size of 5-15mm. The support mesh 12 is horizontally mounted above the attractant holding tank 11 by a metal frame around its perimeter, maintaining a vertical distance of 20mm from the top surface of the tank. The bottom surface of the support mesh 12 engages with the positioning protrusions on the inner wall of the attractant box 1, enabling tool-free quick disassembly and facilitating the cleaning of any blockages in the mesh.

[0038] The lower surface of the top cover 13 has 20 circular grooves 131 arranged in a 5×2 array in two rows. The circular grooves 131 are 10mm in diameter and 5mm deep, and each contains an embedded LED attractant light 14. The LED attractant light 14 is a green surface-mount LED with a wavelength of 535nm, a power of 0.5-2W, and is equipped with a focusing lens with a beam angle of 30-60°. The LED is IP65 waterproof.

[0039] The outer surface of the top cover 13 is bright yellow, which enhances the visual attraction by utilizing the attraction of adult black soldier flies to yellow. The top cover 13 is sealed to the main body of the attraction box 1 by a magnetic strip, making it easy to open.

[0040] The foldable oviposition board 2 is composed of eight wooden boards 21, nylon fabric 22, stitching thread 23, and elastic bands 24. The wooden boards 21 preferably have dimensions of 100-116mm × 12-16mm × 2-3mm. The foldable oviposition board consists of rectangular wooden boards wrapped in nylon fabric. Adjacent boards are separated by nylon stitching thread and connected using polyester stitching thread 23 with a 4mm stitch spacing, forming a foldable frame with adjacent boards spaced 20mm apart. The nylon fabric 22 is 0.5mm thick.

[0041] In the folded state, use 2-4 natural latex rubber bands 24 to wrap horizontally around both sides of the foldable egg-laying board 2 to secure the stacked wooden boards 21. The rubber bands 24 have a diameter of 2-3 mm. The rubber bands 24 are wrapped at 1 / 4 and 3 / 4 of the length of the egg-laying board, and the ends are knotted and secured with plastic tubes to prevent loosening.

[0042] After removing the rubber band 24, the wooden board 21 can be fully unfolded into a planar rectangle with a size of 160mm × 120mm and a splicing gap of ≤4mm under the flexible connection of the nylon cloth 22.

[0043] The three-module collaborative working mechanism of this device is as follows: the scent of the attractant → the ventilation opening 112 → vertically penetrating the support net 12 → acting on the foldable oviposition board 2; the LED light 14 → emits green light, forming a dual attraction of light and color with the bright yellow cap; when collecting eggs → the foldable oviposition board 2 is removed as a whole → the rubber band 24 is untied → it is unfolded → the eggs are poured out → it is folded back to its original position.

[0044] The method of using this device includes the following steps: Place the attractant into the attractant holding trough 11, fix the foldable oviposition board 2 in a folded state with rubber bands 24 and place it on the carrying net 12, cover it with the top cover 13 and turn on the LED light 14; after 24-48 hours, open the cover 13 and take out the foldable oviposition board 2, untie the rubber bands 24 and unfold it into a flat rectangle, shake it slightly or tilt it to allow the insect eggs to fall off naturally and collect them; then fix the oviposition board 2, which has been emptied of insect eggs, with rubber bands 24 again and put it back into the attractant box 1 for reuse.

[0045] This invention significantly improves the efficiency and quality of black soldier fly egg collection through a combination of drawer-type structure, rubber band fixing and folding, and photo-aerobic synergistic attraction. The device has a simple structure, is easy to operate, and has low cost, making it suitable for large-scale promotion and application.

Claims

1. A dual-effect trapping device for black soldier fly oviposition based on a foldable oviposition plate, characterized in that: The device includes a lure box (1) and a foldable oviposition board (2); the lure box (1) is provided with a lure holding slot (11), a support net (12) and a top cover (13) from bottom to top; the lure holding slot (11) is a drawer-type structure; the top surface of the lure holding slot (11) is provided with a ventilation opening (112); the foldable oviposition board (2) is movably placed above the support net (12); a light source is installed on the outer surface of the top cover (13); the foldable oviposition board (2) is made of a rigid substrate wrapped and stitched together with a flexible connecting material, and has an unfolded state and a folded state.

2. The black soldier fly spawning attraction device according to claim 1, characterized in that: The light source is an LED attraction lamp (14).

3. The black soldier fly spawning attraction device according to claim 2, characterized in that: The upper surface of the top cover (13) is provided with a plurality of circular grooves (131), and the LED attraction lights (14) are green lights adapted to the circular grooves and are distributed in an array.

4. The black soldier fly spawning attraction device according to claim 1, characterized in that: The top surface of the attractant holding trough (11) is provided with a plurality of parallel and evenly spaced ventilation openings (112). The ventilation openings (112) are horizontally extending strip openings, each opening is 8~12 mm wide, and the center distance between adjacent gaps is 8~12 mm.

5. The black soldier fly spawning attraction device according to claim 1, characterized in that: The foldable oviposition board (2) is in a stacked corrugated shape in the folded state, and in the unfolded state, each rigid substrate is unfolded to the same plane through a flexible connecting material, forming a planar rectangle.

6. The black soldier fly spawning attraction device according to claim 1, characterized in that: The rigid substrate is a rectangular wooden board (21), and the flexible connecting material is nylon cloth (22). After the nylon cloth (22) wraps around a single wooden board (21), adjacent wooden boards (21) are separated by stitching lines (23). The center distance between adjacent wooden boards (21) is 15~25 mm.

7. The black soldier fly spawning attraction device according to claim 1, characterized in that: The supporting net (12) is a metal woven net with a mesh size of 5-15 mm. The bottom surface of the foldable oviposition plate (2) is in direct contact with the top surface of the supporting net (12).

8. The black soldier fly spawning attraction device according to claim 2, characterized in that: The LED attractant lamp (14) has a wavelength of 530~540 nm and a green PMD LED bead with a power of 0.5-2 W. Each LED attractant lamp (14) is equipped with an independent focusing lens.

9. The black soldier fly spawning attraction device according to claim 1, characterized in that: The outer surface of the top cover (13) is bright yellow.

10. The device for attracting black soldier fly spawning organisms according to claim 1, characterized in that: The lure box (1) has a cuboid structure, and the area of ​​the foldable oviposition board (2) accounts for 70%-90% of the area of ​​the support net (12).

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