Device for efficiently separating and storing lepidoptera larvae
By designing a combination of a screening platform and a heating block inside the box, lepidopteran larvae are automatically separated using temperature differences. This solves the problem of low efficiency in manual selection in existing technologies, achieving highly efficient automated separation and efficient supply of host larvae, thus supporting the breeding of wheat moth parasitic wasps.
Patent Information
- Application Number
- CN202422922959.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The current technology for manually selecting lepidopteran larvae is inefficient, resulting in insufficient supply of host larvae, increased labor costs, and an inability to meet the needs of parasitic breeding by the wheat moth wasp.
Design a device comprising a box, a base, a screening platform, and a heating block. By combining the screening platform and the heating block, host larvae are automatically separated using temperature differences. The screening platform has sloping, smooth sidewalls and a mesh structure to ensure that larvae are separated from other materials.
It achieves highly efficient and automated separation of lepidopteran larvae, improves separation efficiency, reduces manual operation time and labor intensity, ensures an efficient supply of host larvae, and supports the continuous breeding of wheat moth parasitic wasps.
Smart Images
Figure CN223489024U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lepidopteran larvae rearing technology, specifically to a device for efficiently separating and storing lepidopteran larvae. Background Technology
[0002] The tobacco meal borer *Ephestia elutella* (Hübner) and the Indian grain borer *Plodia interpunctella* (Hübner) are both global storage pests, causing severe economic losses to tobacco and grains during storage. It is reported that global tobacco losses due to storage pests amount to approximately 1% annually, while in my country, the annual losses reach as high as 1.64% to 2%. Currently, chemical fumigation remains the primary method for controlling storage pests. However, with increasing demands for environmental safety, pesticides previously based on methyl bromide have been banned, and the use of aluminum phosphide was restricted in 2020. Therefore, there is an urgent need to develop green control technologies for storage pests.
[0003] In recent years, although controlled atmosphere storage (mainly nitrogen and carbon dioxide) and high / low temperature control have shown some effectiveness in controlling stored-store pests, they require extremely high airtightness in the storage environment, which most warehouses cannot meet, thus reducing pest control efficiency or increasing control costs. Currently, there are increasing reports of releasing natural enemy insects such as *Habrobracon hebetor* (Say) into the storage environment to control lepidopteran pests, and these reports have achieved good control results. The propagation of *Habrobracon hebetor* is a prerequisite for the sustainable control of stored-store lepidopteran pests; only by ensuring the production of large quantities and high-quality natural enemies can their biological control role be effectively played. This requires providing a large number of lepidopteran larvae for the parasitic wasp to infest. Currently, the main form of host supply is manual selection from host rearing systems, which is not only inefficient but also increases labor costs. Therefore, this invention aims to solve the problem of low efficiency in manual selection of host larvae, specifically involving a device for efficiently separating lepidopteran larvae. Utility Model Content
[0004] The present invention aims to provide a device for efficiently separating and storing lepidopteran larvae, in order to solve the problem of low efficiency caused by the existing method of manually selecting host larvae.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a device for efficiently separating and storing lepidopteran larvae, comprising a box, a base, and a sieving platform. The base is connected to the bottom of the box and has multiple cavities communicating with the outside. A collection box is connected to each cavity. A through sieve plate is provided at the top of the cavity on the base. The sieving platform is connected to the top of the base. Multiple cavities are located at both ends of the sieving platform. A heating block is connected to the top of the inner part of the sieving platform. The heating block is connected to a power supply, which is located inside the base and connected to an external control panel.
[0006] The working principle of this invention is as follows: When the host larvae are ready for screening, they are poured into the screening table's mesh bag along with artificial feed or food. Any clumps of artificial feed or food are then broken up. The power is then turned on to heat the heating block, transferring heat to the top of the screening table. When the host larvae sense the increased temperature, they quickly climb off the top of the screening table, either along the side wall or directly onto the base, and finally fall from the sieve plate into the collection box, where they can be removed.
[0007] The advantages of this invention are: 1. The device, through the design of the screening platform and heating block, achieves automated separation of lepidopteran larvae, greatly improving separation efficiency and reducing manual operation time and labor intensity. 2. The design of the screening platform and sieve plate enables multi-stage screening, ensuring complete separation of larvae from other materials and improving the thoroughness of separation. 3. It ensures the efficient supply of a large number of host larvae for the breeding of wheat moth parasitic wasps, which is beneficial for the continuous control of lepidopteran pests in storage by these parasitic wasps.
[0008] Furthermore, the top of the screening platform is provided with a recessed block to prevent the host larvae's feed or food from falling onto the base.
[0009] Furthermore, a mesh bag is connected to the top of the screening platform, and the mesh bag is adapted to the concave block. Through the design of the mesh bag, the host larvae and feed can be initially separated.
[0010] Furthermore, the sidewalls of the screening platform are inclined. This shape allows the host larvae to slide down slowly.
[0011] Furthermore, the sidewalls of the screening table are smooth. This smooth surface allows host larvae to fall more easily from the sidewalls of the screening table.
[0012] Furthermore, the heating block is a heating wire that is closely attached to the bottom of the concave block. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a device for efficiently separating and storing lepidopteran larvae according to the present invention.
[0014] Figure 2 for Figure 1Enlarged view of point A in the middle;
[0015] Figure 3 for Figure 1 A top view of the net bag. Detailed Implementation
[0016] The following detailed description illustrates the specific implementation method:
[0017] The reference numerals in the accompanying drawings include: box 1, screening table 2, screening assembly 3, mesh bag 301, heating block 302, smooth surface 303, fixing rod 304, sieve plate 4, collection box 5, base 6, power supply 7.
[0018] The basic implementation examples are as follows: Figure 1 -Appendix Figure 3 As shown: A device for efficiently separating and storing lepidopteran larvae includes a housing 1, a base 6, a screening platform 3, and a screening assembly 3. The base 6 is fixedly connected to the bottom of the housing 1. The base 6 has two cavities communicating with the outside, and a collection box 5 is connected to each cavity. A through-type sieve plate 4 is fixedly connected to the top of the base 6 at the top of the cavity. The screening platform 2 is fixedly connected to the top of the base 6. The top of the screening platform 2 has a recessed block. The sidewalls of the screening platform 2 are inclined downwards and have a smooth surface 3. 03. Two cavities are located at both ends of the screening table. The screening component 3 includes a heating wire, a power supply 7, and a mesh bag 301. The heating wire is fixedly connected to the inner top of the screening table and is electrically connected to the power supply 7. The power supply 7 is located inside the base 6 and is electrically connected to the external control panel. The mesh bag 301 is detachably connected to the top of the concave block. The mesh bag 301 is adapted to the shape of the concave block. Downward fixing rods 304 are connected around the mesh bag 301. The fixing rods 304 are slidably inserted into the top of the screening table.
[0019] The specific implementation process is as follows: When the host larvae are ready for screening, they are poured onto the screening table mesh bag 301 along with artificial feed or food. Any clumps of artificial feed or food are then broken up, and some feed falls through the mesh bag 301 into the concave area. The power supply 7 is then turned on, heating the heating wire to 35-37°C, raising the temperature of the top of the screening table 2. When the host larvae sense the increased temperature, they quickly climb off the top of the screening table 2 and slide down the side wall or fall directly onto the base 6. The host larvae then fall from the sieve plate 4 into the collection box 5. Finally, the collection box 5 is removed to obtain the host larvae. After all the larvae have been separated, the mesh bag 301 is removed, the feed in the concave area is cleaned, and then the mesh bag 301 and other components are reinstalled. After reassembly, the next sorting process can begin.
[0020] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A device for efficiently separating and storing lepidopteran larvae, characterized in that: The device includes a housing, a base, and a screening platform. The base is connected to the bottom of the housing and has multiple cavities that communicate with the outside. Each cavity contains a collection box. A through-type sieve plate is located at the top of the cavity on the base. The screening platform is connected to the top of the base. Multiple cavities are located at both ends of the screening platform. A heating block is connected to the top of the inner part of the screening platform. The heating block is connected to a power supply, which is located inside the base and connected to an external control panel.
2. The device for efficiently separating and storing lepidopteran larvae according to claim 1, characterized in that: The top of the screening table is provided with a recessed block.
3. The device for efficiently separating and storing lepidopteran larvae according to claim 2, characterized in that: The top of the screening table is connected to a mesh bag, which is adapted to the concave block.
4. The device for efficiently separating and storing lepidopteran larvae according to claim 3, characterized in that: The sidewalls of the screening table are inclined.
5. The device for efficiently separating and storing lepidopteran larvae according to claim 4, characterized in that: The sidewalls of the screening table are smooth.
6. The device for efficiently separating and storing lepidopteran larvae according to claim 5, characterized in that: The heating block is a heating wire that is tightly attached to the bottom of the concave block.