one-way device

Abstract

This utility model relates to a one-way device, comprising two horizontal transparent plates and three vertical transparent plates. The vertical transparent plates are fixed between the two horizontal transparent plates, forming two front and rear channels between them. Above the front and rear channels, a horizontal fixing rod is vertically fixed. The upper end of a transparent, square, lightweight plate is cylindrically fitted onto the fixing rod, and the lower end rests obliquely on the bottom horizontal transparent plate. The lower end of the lightweight plate has several ventilation grooves, and the bottom horizontal transparent plate has several small grooves. The front and rear channels in this utility model utilize the phototaxis of insects. Light emitted from the ventilation grooves guides the insects to the end of the lightweight plate, and they use their own strength to pry open the plate, thus achieving the purpose of opening the lightweight plate. This one-way device is suitable for the automatic migration of medium to large insects, preventing escape, and can also separate eggs from adults.

Description

Technical Field

[0001] This utility model relates to the field of insect breeding equipment, and in particular to a one-way device used in the process of insect cultivation, which can change the living environment of adult insects to meet their migration needs during insect rearing. Background Technology

[0002] Adult white-spotted flower beetles are nocturnal, possess strong flying abilities, and prefer to feed on rotten fruits and crops such as corn and sunflowers. They mainly lay their eggs in places with abundant humus, such as manure piles, chopped straw, and piles of decaying grass, where the environment is relatively humid or has been treated with uncomposted fertilizer. White-spotted flower beetles are typically raised in a mesh cage with a sieve at the bottom. Adults and culture medium are placed together on the mesh. After the adults lay their eggs, the cage is shaken to separate the adults from the eggs and culture medium. The eggs and medium fall off the sieve, while the adults remain above it, making collection difficult and significantly impacting the adults' lives. Furthermore, the culture medium needs to be constantly replenished after falling off the sieve, which makes it easy for adult white-spotted flower beetles to escape. Chinese patent "A Breeding Device for Adult White-spotted Flower Beetles" (ZL202222924401.9) discloses a breeding device with a collection box. The collection box is located below the breeding box, which also has a steel mesh underneath. Due to the larvae's active nature, the substrate and eggs fall through the gaps in the steel mesh at the bottom of the breeding box into the collection box, thus separating the adults from the substrate and eggs, saving labor. Although this device eliminates the need for manual egg collection, it has the following drawbacks: 1. When the larvae move, both eggs and substrate fall down, requiring continuous replenishment of the substrate; 2. It requires waiting for some eggs to hatch into larvae before shaking them down when they become active, and it cannot guarantee that all eggs hidden in the substrate will fall; 3. Because some eggs hatch into larvae, it is impossible to promptly calculate the egg-laying rate of that batch of adults. Summary of the Invention

[0003] To address the needs in the aforementioned fields, this application provides a one-way device that enables unidirectional migration of adult insects between two rearing cages, thereby separating the adult insects from their eggs and culture medium. This allows for accurate calculation of the egg-laying rate of a batch of adult insects and also enables comparison of different rearing conditions in the two rearing cages.

[0004] A one-way device includes two horizontal transparent plates and two or more vertical transparent plates. The vertical transparent plates are fixed parallel to each other between the two horizontal transparent plates, forming one or more parallel front-to-back channels between the two horizontal transparent plates. The device is characterized by: a horizontal fixed rod above the front-to-back channels; a transparent, lightweight thin plate with its upper end cylindrically fitted onto the fixed rod and capable of rotating along the fixed rod; and its lower end obliquely resting on the upper surface of the bottom horizontal transparent plate; no gap or a gap less than 0.5 mm between the cylindrical upper end of the lightweight thin plate and the upper horizontal transparent plate; no gap or a gap less than 0.5 mm between the two sides of the lightweight thin plate and the vertical transparent plates; several ventilation holes or ventilation grooves at the lower end of the lightweight thin plate; and a rough surface or several small grooves on the upper surface of the bottom horizontal transparent plate.

[0005] The fixing rod is vertically fixed above the two adjacent vertical transparent plates.

[0006] The lightweight sheet forms an angle of 10-80 degrees with the bottom horizontal transparent sheet.

[0007] The lightweight sheet forms a 40-60 degree angle with the bottom horizontal transparent sheet.

[0008] The front and rear channels are two or more. In one of the adjacent front and rear channels, the fixing rod is fixed to the front side, and the lower end of the lightweight thin plate is diagonally placed on the rear side of the upper surface of the bottom horizontal transparent plate; in the other front and rear channel, the fixing rod is fixed to the rear side, and the other end of the lightweight thin plate is diagonally placed on the front side of the upper surface of the bottom horizontal transparent plate.

[0009] The horizontal transparent plate, the vertical transparent plate, and the lightweight thin plate are all square, and the two or more vertical transparent plates are parallel to each other.

[0010] There are three vertical transparent panels, and two channels at the front and back.

[0011] The lightweight sheet has a ventilation groove at its lower end that extends directly to the end face.

[0012] The width of the ventilation groove is 0.5-1.0cm.

[0013] The lightweight sheet is a transparent plastic sheet.

[0014] The horizontal and vertical transparent panels are an integral frame structure.

[0015] The one-way device of this invention acts as a one-way channel, while the lightweight thin plate acts as a one-way valve. The lightweight thin plate overlaps with the horizontal transparent plate at the bottom at an acute angle. Within the acute angle area, applying a force towards the tip of the lightweight thin plate will open it. However, applying a force in the opposite direction outside the acute angle area will not open the plate. Therefore, the opening of the lightweight thin plate is one-way. This invention also features ventilation holes or grooves on the lightweight thin plate. When an insect enters the acute angle area, the scent of food wafts through the ventilation holes or grooves. The insect will crawl along the direction of the scent, thus opening the lightweight thin plate and allowing it to migrate through the one-way device. Within this channel, the insect cannot travel in the opposite direction. Therefore, the two channel openings of the front and rear channels in this invention can be connected to the exits of the insect rearing cages. Light is turned on in one of the cages facing opposite corners, and food is placed inside. Insects enter through the corner opening, pass through the thin, lightweight plate, and enter the cage with food, thus transferring insects from one cage to another. The size of the ventilation slots and light guide holes is such that individual insects cannot pass through them.

[0016] Although this one-way device is designed for the white-spotted flower beetle, it can actually be applied to the automatic transfer process in the rearing of medium to large-sized insects, using its own strength to pry open the lightweight thin plate. Because this is a one-way device, to prevent insects from passing through in the opposite direction, there are no gaps or very small gaps between the upper end of the lightweight thin plate and the upper horizontal transparent plate, and between the two sides and the vertical transparent plate, preventing insects from passing through these gaps. This application utilizes the fact that adult insects are attracted by light and food, and can move through this device to the other side containing fresh egg-laying substrate. The original substrate can be directly collected for hatching, achieving automatic separation of adults and eggs, eliminating the need for manual screening by rearing personnel, and enabling rapid and accurate collection of eggs for hatching in the larval rearing room. Each time, only new substrate and food need to be prepared and placed, making operation convenient. This equipment can create a closed environment for the rearing device, preventing adult insects from escaping, allowing for unified centralized rearing and forming large-scale rearing modules.

[0017] This invention can also have two or more channels with adjacent channels having opposite directions of passage. This way, when reverse passage is required, adjacent channels can be moved to connect with the insect rearing cage, enabling the insects to migrate on their own without manual transfer, thus preventing insects from escaping. It also makes it easy to separate adult insects from eggs, and makes egg production statistics more accurate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a one-way valve.

[0019] Figure 2 This is a schematic diagram of the main structure of a one-way transducer.

[0020] Figure 3This is a right-side view of a one-way transducer (with the vertical transparent panel on the right side removed).

[0021] Figure 4 This is a top view of a lightweight thin sheet.

[0022] Figure 5 This is a schematic diagram of the left side of a lightweight sheet metal.

[0023] Figure 6 This is a 3D diagram of the bottom horizontal transparent panel.

[0024] The labels in the diagram are as follows: 1-Horizontal transparent plate, 2-Vertical transparent plate, 3-Fixing rod, 4-Lightweight thin plate, 5-Ventilation groove, 6-Groove. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] like Figure 1-5 As shown, the one-way device of this utility model includes two horizontal transparent plates 1 and three vertical transparent plates 2. The vertical transparent plates 3 are fixed between the two horizontal transparent plates 1, and the three vertical transparent plates 2 are parallel to each other, so that two parallel front and rear channels of the same size are formed between the two horizontal transparent plates 1.

[0027] In one of the front and rear passages, a horizontal fixing rod 3 is vertically fixed above the front side between two adjacent vertical transparent panels 2. The upper end of a transparent square lightweight sheet 4 is cylindrically fitted onto the fixing rod 3 and can rotate along the fixing rod 3, while the lower end rests diagonally on the rear side of the upper surface of the bottom horizontal transparent panel 1. In the other front and rear passage, a horizontal fixing rod 3 is vertically fixed above the rear side between two adjacent vertical transparent panels 2. The upper end of a transparent square lightweight sheet 4 is cylindrically fitted onto the fixing rod 3 and can rotate along the fixing rod, while the lower end rests diagonally on the front side of the upper surface of the bottom horizontal transparent panel 1. Both of these front and rear passages are one-way passages; one allows passage from front to right, and the other allows passage from back to front.

[0028] The lightweight sheet 4 has no gap or a gap of less than 0.5 mm between its cylindrical upper end and the horizontal transparent plate 1 above it. The lightweight sheet 4 also has no gap or a gap of less than 0.5 mm between its two side ends and the vertical transparent plate 2. The lightweight sheet 4 has a ventilation groove 5 extending directly to its end face at its lower end. The width of the ventilation groove 5 is 0.5-1.0 cm.

[0029] The bottom horizontal transparent plate has several small grooves 6, see Figure 6 .

[0030] The fixing rod can also be fixed to the lower surface of the upper horizontal transparent plate, as long as the gaps between the upper top of the lightweight thin plate and the upper horizontal transparent plate, and between the two sides of the lightweight thin plate and the vertical transparent plate, are not wide enough for insects to pass through.

[0031] The lightweight sheet forms an angle of 10-80 degrees with the bottom horizontal transparent sheet.

[0032] Preferably, the lightweight sheet forms a 40-60 degree angle with the bottom horizontal transparent sheet.

[0033] All of the above components can be made of transparent materials, such as plastic or acrylic. The fixing rod does not need to be transparent.

[0034] The horizontal and vertical transparent panels are either an integrated frame structure or separate units that are assembled and fixed together.

[0035] Features of the structure of this utility model

[0036] 1) Light transmittance: Based on the phototaxis of adult white-spotted flower beetles, transparent plastic is used to make the device. Through this plastic device, the adults can see the light of the new oviposition substrate. The design of the ventilation holes or ventilation grooves increases the attraction of food, thus crawling to the new oviposition substrate.

[0037] 2) Bilateral unidirectional movement: The position of the two channels can be changed by moving the unidirectional device, determining the direction of the unidirectional device's passage. Inside each channel is a plastic sheet slightly higher than the channel opening, secured with a fixing rod. Under gravity, the sheet falls to form a ramp, thus closing the channel in the direction of the ramp. Therefore, for an adult insect to pass through the channel, only the force of the sheet's weight in the opposite direction of the ramp is needed to lift the gate formed by the sheet and allow passage.

[0038] 3) Lightweight: The ramp surface consists of a plastic sheet and a fixing rod. The fixing rod supports the rotation axis. When the adult insect passes through the passage, the rough surface or small grooves at the bottom can give the adult insect a certain gripping force. In addition, the plastic sheet is very light, which makes it easier for the adult insect to pass through.

[0039] This invention relates to a one-way device with two unidirectional channels, one for front-to-back passage and the other for back-to-front passage. Utilizing the phototaxis of insects, light emitted from the ventilation slots guides the insects to the end of a lightweight, thin plate. The insects then use their own strength to push open the plate, thus passing through the one-way device. This device is suitable for the automatic migration of medium to large-sized insects, preventing escape, and also facilitates the separation of eggs and adults.

Claims

1. A one-way device comprising two horizontal transparent plates and two or more vertical transparent plates, said vertical transparent plates being fixed parallel to each other between the two horizontal transparent plates, forming one or more front-to-back passages between the two horizontal transparent plates, characterized in that: Above the front and rear passages is a horizontal fixed rod. The upper end of a transparent, lightweight sheet is cylindrical and fitted onto the fixed rod, and can rotate along the fixed rod. The lower end rests obliquely on the upper surface of the bottom horizontal transparent sheet. There is no gap or a gap of less than 0.5mm between the cylindrical upper end of the lightweight sheet and the upper horizontal transparent sheet. There is no gap or a gap of less than 0.5mm between the two sides of the lightweight sheet and the vertical transparent sheet. The lower end of the lightweight sheet has several ventilation holes or ventilation grooves. The upper surface of the bottom horizontal transparent sheet is a rough surface or has several small grooves.

2. The unidirectional according to claim 1, characterized in that: The fixing rod is vertically fixed above the two adjacent vertical transparent plates.

3. The unidirectional according to claim 1, wherein: The lightweight sheet forms an angle of 10-80 degrees with the bottom horizontal transparent sheet.

4. The unidirectional according to claim 3, wherein: The lightweight sheet forms a 40-60 degree angle with the bottom horizontal transparent sheet.

5. The unidirectional according to claim 1, wherein: The front and rear channels are two or more. In one of the adjacent front and rear channels, the fixing rod is fixed to the front side, and the lower end of the lightweight thin plate is diagonally placed on the rear side of the upper surface of the bottom horizontal transparent plate; in the other front and rear channel, the fixing rod is fixed to the rear side, and the other end of the lightweight thin plate is diagonally placed on the front side of the upper surface of the bottom horizontal transparent plate.

6. The unidirectional according to claim 5, characterized in that: The horizontal transparent plate, the vertical transparent plate, and the lightweight thin plate are all square, and the two or more vertical transparent plates are parallel to each other.

7. The unidirectional according to claim 6, characterized in that: There are three vertical transparent panels, and two channels at the front and back.

8. The unidirectional according to claim 1, wherein: The lightweight sheet has a ventilation groove at its lower end that extends directly to the end face.

9. The unidirectional according to claim 8, characterized in that: The width of the ventilation groove is 0.5-1.0cm.

10. The unidirectional according to claim 1, wherein: The lightweight sheet is a transparent plastic sheet.

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