A slow release device for insect pheromones

Abstract

The utility model relates to insect trapping device technical field, especially insect pheromone slow -release device, including the tubular body of one end closed, still including slow -release plug, slow -release plug includes the columnar body and the joint part. The utility model discloses through setting up and the slow -release plug of tubular body detachable connection, can seal the opening of tubular body, and the pheromone that tubular body carries can release in a relatively airtight gap, and then release to the outside of insect pheromone slow -release device through slow -release channel, compared with the direct release of the opening end of the existing insect pheromone through tubular body, can reach the effect of slow -release, and simultaneously, the device is made of rubber, has the thermal expansion and cold shrinkage characteristics, and is matched with the slow -release access design of one end opening big one end opening small, and the release speed of insect pheromone is slow in the high temperature of daytime, and the release speed is fast at night, can prolong the use cycle and reach better pest trapping effect. The device can satisfy the use demand of one season crop, reduces the artificial cost of replacement.

Description

Technical Field

[0001] This utility model belongs to the technical field of insect trapping devices, and specifically relates to an insect pheromone slow-release device. Background Technology

[0002] Insect pheromone trapping technology refers to the use of artificially synthesized sex pheromones to mimic the chemical signals released by female insects, attracting and trapping male insects, thereby blocking the mating and reproduction of pests. This biological control method has advantages such as being environmentally friendly and having no pesticide resistance. It can be used in conjunction with traps to kill pests such as stem borers in the field.

[0003] Existing insect pheromone trapping devices generally consist of a trap body and a pheromone slow-release device suspended within the trap body. Extending the duration of pheromone release would reduce labor costs associated with replacing the slow-release device, thus facilitating the widespread application of insect pheromone trapping devices. The inventor team has repeatedly improved the pheromone slow-release device to extend its lifespan. For example, the patent "An Insect Sex Lure Carrier" (CN211672049U) increases the surface area of ​​the carrier by incorporating a tubular inner core within the tubular body and designing both the inner and outer sides of the inner core to be concave-convex, thereby increasing the adsorption capacity of the sex pheromone, extending the release time, and improving the carrier's lifespan. However, this insect sex pheromone carrier still cannot meet the needs of a single sugarcane season, and the slow-release time of the carrier still needs to be extended. Utility Model Content

[0004] The purpose of this invention is to provide an insect pheromone slow-release device, thereby extending the single-use lifespan of existing insect sex attractant carriers and reducing the cost of manual replacement.

[0005] To achieve the above objectives, this utility model provides an insect pheromone slow-release device, comprising a tubular body closed at one end and a slow-release plug. The slow-release plug includes a cylindrical body and a snap-fit ​​portion. The snap-fit ​​portion is fixed to one end of the cylindrical body, and the diameter of the snap-fit ​​portion is larger than the diameter of the cylindrical body. The snap-fit ​​portion is adapted to the size of the open end of the tubular body and is detachably connected. The cylindrical body is disposed within the tubular body, and a gap for gas flow is left between the cylindrical body and the tubular body. The cylindrical body is provided with a slow-release channel that penetrates the cylindrical body and is used to guide the pheromones inside the tubular body to the outside of the insect pheromone slow-release device.

[0006] Preferably, the sustained-release channel has a large opening at one end and a small opening at the other end.

[0007] Preferably, the sustained-release channel includes a first sustained-release channel and a second sustained-release channel, wherein the opening at the tubular body end of the first sustained-release channel is larger than the opening at the other end, and the opening at the tubular body end of the second sustained-release channel is smaller than the opening at the other end.

[0008] Preferably, the number of the first sustained-release channels is greater than the number of the second sustained-release channels.

[0009] Preferably, the second sustained-release channel is located in the middle of the columnar body, and the first sustained-release channel is spaced apart along the outer periphery of the second sustained-release channel.

[0010] Preferably, the tubular body is a hollow frustum shape, and the diameter of the end near the snap-fit ​​portion is larger than the diameter of the other end.

[0011] Preferably, the tubular body is further provided with a tubular inner core, which does not contact the columnar body.

[0012] Preferably, the inner wall of the tubular body is irregular.

[0013] Preferably, the inner wall of the tubular body near the opening end is provided with a concave connecting portion, and the opening edge of the tubular body below the connecting portion is provided with an inwardly protruding flange; the connecting portion is adapted to the size of the locking portion of the slow-release plug, and the edge of the end of the slow-release plug below the locking portion is a groove that matches the flange.

[0014] Preferably, the tubular body and the slow-release plug are made of rubber.

[0015] Compared with existing technologies, this utility model has the following beneficial effects:

[0016] 1. This utility model, by setting a slow-release plug that is detachably connected to the tubular body, can seal the opening of the tubular body. The pheromones carried by the tubular body can be released in a relatively sealed space and then released outside the insect pheromone slow-release device through the slow-release channel. Compared with the existing method of directly releasing insect pheromones through the opening of the tubular body, it can achieve a slow-release effect, extend the service life of the insect pheromone slow-release device, meet the needs of a season's crops, and reduce the labor cost of replacing the insect pheromone slow-release device.

[0017] 2. This utility model provides a first slow-release channel with a larger inner opening and a smaller outer opening, and a second slow-release channel with a smaller inner opening and a larger outer opening. The second slow-release channel is located in the middle of the columnar body. The first slow-release channels are arranged at intervals along the outer periphery of the second slow-release channels, and the number of first slow-release channels is greater than that of second slow-release channels. In use, insect pheromones are mainly released from the first slow-release channels. The design of the larger inner opening and smaller outer opening can prolong the slow-release time.

[0018] 3. This invention uses a rubber tubular body and a slow-release plug, which possess elasticity and thermal expansion and contraction properties. Combined with a slow-release channel design with a larger opening at one end and a smaller opening at the other, the release rate of insect pheromones is slower during the day and faster at night, extending the service life while achieving better pest trapping results. Specifically, pests such as borers are generally more active after sunset in summer. During the day, when the temperature is high, the volume of the gap formed by the tubular body and the slow-release plug slightly increases, resulting in lower air pressure. Combined with the first slow-release channel, which has a larger inner opening and a smaller outer opening, insect pheromones are not easily released. After sunset, when the temperature drops, the volume of the gap formed by the tubular body and the slow-release plug slightly decreases, resulting in higher air pressure, which facilitates the release of insect pheromones and better traps pests. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this insect pheromone slow-release device.

[0020] Figure 2 This is a cross-sectional view of the insect pheromone slow-release device.

[0021] Figure 3 yes Figure 2 A schematic diagram of the split structure.

[0022] Figure 4 This is a schematic diagram of the structure of the slow-release plug of this utility model.

[0023] Figure 5 This is a top view of the slow-release plug of this utility model.

[0024] Explanation of key figure labels:

[0025] 1. Tubular body; 11. Connecting part; 12. Protruding edge; 2. Slow-release plug; 21. Columnar body; 22. Snap-fit ​​part; 23. Slow-release channel; 231. First slow-release channel; 232. Second slow-release channel. Detailed Implementation

[0026] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0027] Example 1

[0028] like Figure 1-3As shown, an insect pheromone slow-release device includes a tubular body 1 closed at one end and a slow-release plug 2 detachably connected to the tubular body 1. By providing the slow-release plug 2 detachably connected to the tubular body 1, the opening of the tubular body 1 can be sealed. The pheromone carried by the tubular body 1 can be released in a relatively sealed space and then released outside the insect pheromone slow-release device through the slow-release channel 23. Compared with existing methods where insect pheromones are directly released through the opening of the tubular body 1, this method achieves a slow-release effect, meets the needs of a single season's crops, and reduces the labor costs of replacing slow-release devices.

[0029] Combination Figure 3-5 The slow-release plug 2 includes a cylindrical body 21 and a locking part 22. The locking part 22 is fixed to the outer periphery of one end of the cylindrical body 21. The diameter of the locking part 22 is larger than the diameter of the cylindrical body 21. The locking part 22 is adapted to the size of the open end of the tubular body 1 and is detachably connected. The cylindrical body 21 is disposed inside the tubular body 1, and a gap for gas flow is left between the cylindrical body 21 and the tubular body 1. The cylindrical body 21 is provided with a slow-release channel 23, which penetrates the cylindrical body 21 and is used to guide the pheromones inside the tubular body 1 to the outside of the insect pheromone slow-release device. Compared with the existing direct release of insect pheromones through the open end of the tubular body 1, the slow-release plug 2 can achieve a slow-release effect and extend the service life of the insect pheromone slow-release device per use.

[0030] Specifically, in combination Figure 3 The slow-release channel 23 includes a first slow-release channel 231 with a larger opening at one end and a second slow-release channel 232 with a smaller opening at the other end. The opening at one end of the tubular body 1 of the first slow-release channel 231 is larger than the opening at the other end, and the opening at one end of the tubular body 1 of the second slow-release channel 232 is smaller than the opening at the other end. The second slow-release channel 232 is located in the middle of the columnar body 21. The first slow-release channels 231 are spaced apart along the outer periphery of the second slow-release channel 232, and the number of first slow-release channels 231 is greater than the number of second slow-release channels 232. In use, insect pheromones are mainly released from the first slow-release channel 231. The design of the larger inner opening and smaller outer opening can prolong the slow-release time.

[0031] Combination Figure 3The tubular body 1 is a hollow frustum shape, and the diameter of one end near the snap-fit ​​portion 22 is larger than the diameter of the other end. The inner wall of the tubular body 1 is concave and convex, which increases the inner surface area of ​​the tubular body 1 and increases the adsorption of insect pheromones. In other embodiments, the tubular body 1 is also provided with a tubular inner core, which does not contact the columnar body 21. The design of the tubular inner core can further increase the adsorption of insect pheromones. Further, the inner wall of the tubular body 1 near the opening end is provided with a concave connecting portion 11, and the opening edge of the tubular body 1 below the connecting portion 11 is provided with an inwardly protruding flange 12; the connecting portion 11 is adapted to the size of the snap-fit ​​portion 22 of the slow-release plug 2, and the edge of the end of the slow-release plug 2 below the snap-fit ​​portion 22 is a groove that matches the flange 12. In actual processing, the snap-fit ​​part 22 of the slow-release plug 2 is fitted onto the annular structure outside the columnar body 21, and is a little distance away from the end of the columnar body 21. This distance is exactly the same size as the protruding edge 12 of the tubular body 1.

[0032] In this embodiment, both the tubular body 1 and the slow-release plug 2 are made of rubber, possessing a certain degree of elasticity, facilitating their snap-fit ​​and fixation. Simultaneously, they exhibit thermal expansion and contraction, allowing the size of the gap formed by the tubular body 1 and the slow-release plug 2 to be adjusted by temperature, thereby controlling the release of insect pheromones. Specifically, during the day when the temperature is high, the volume of the gap formed by the tubular body 1 and the slow-release plug 2 slightly increases, resulting in lower air pressure. Combined with the first slow-release channel 231, which has a larger inner opening and a smaller outer opening, insect pheromones are not easily released. After sunset, as the temperature drops, the volume of the gap formed by the tubular body 1 and the slow-release plug 2 slightly decreases, resulting in higher air pressure, which is conducive to the release of insect pheromones. Since stem borers prefer to be active after sunset, this corresponds precisely to their lifestyle, allowing for better trapping of pests.

[0033] This insect pheromone slow-release device is used in conjunction with insect traps to trap pests such as stem borers. In use, two insect traps are hung on one column, with one column for every 3 acres of land. Insect pheromones attached to the inner wall of the tubular body 1 are first released into the gap between the tubular body 1 and the column 21, and then discharged outside the insect traps through the slow-release channel 23 to attract stem borers and other pests. This insect pheromone slow-release device can trap two generations of stem borers with a single use, basically meeting the needs of one crop season. It eliminates the need for frequent replacement of the insect pheromone slow-release device, saving labor.

[0034] In summary, this application, by setting a slow-release plug 2 detachably connected to the tubular body 1, can seal the opening of the tubular body 1. The pheromone carried by the tubular body 1 can be released in a relatively sealed space, and then released outside the insect pheromone slow-release device through the slow-release channel 23. Compared with the existing method of directly releasing insect pheromones through the open end of the tubular body 1, a slow-release effect can be achieved. At the same time, this device is made of rubber, which has the characteristics of thermal expansion and contraction. Combined with the slow-release channel design with a large opening at one end and a small opening at the other, the insect pheromone is released slowly during the day when the temperature is high and at night when the release rate is fast. This can extend the service life and achieve a better pest trapping effect. This device can meet the needs of a single season of crops and reduce the labor cost of replacement.

[0035] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. An insect pheromone slow-release device comprising a tubular body closed at one end, characterized in that, It also includes a slow-release plug, which comprises a cylindrical body and a snap-fit ​​portion. The snap-fit ​​portion is fixed to one end of the cylindrical body. The diameter of the snap-fit ​​portion is larger than the diameter of the cylindrical body. The snap-fit ​​portion is adapted to the size of the open end of the tubular body and is detachably connected. The cylindrical body is disposed within the tubular body, and a gap for gas flow is left between the cylindrical body and the tubular body. The cylindrical body is provided with a slow-release channel that penetrates the cylindrical body and is used to guide the pheromones inside the tubular body to the outside of the insect pheromone slow-release device.

2. The insect pheromone slow-release device according to claim 1, characterized in that, The slow-release channel has a large opening at one end and a small opening at the other end.

3. The slow-release device for insect pheromones according to claim 2, characterized in that The sustained-release channel includes a first sustained-release channel and a second sustained-release channel. The opening at the tubular body end of the first sustained-release channel is larger than the opening at the other end, and the opening at the tubular body end of the second sustained-release channel is smaller than the opening at the other end.

4. The slow-release device for insect pheromones according to claim 3, characterized in that The number of the first sustained-release channels is greater than the number of the second sustained-release channels.

5. The slow-release device for insect pheromones according to claim 4, characterized in that The second sustained-release channel is located in the middle of the columnar body, and the first sustained-release channel is spaced apart along the outer periphery of the second sustained-release channel.

6. The insect pheromone slow-release device according to claim 1, wherein The tubular body is a hollow frustum shape, and the diameter of the end near the snap-fit ​​part is larger than the diameter of the other end.

7. The insect pheromone slow-release device according to claim 1, characterized in that, The tubular body also has a tubular inner core, which does not contact the columnar body.

8. The insect pheromone slow-release device according to claim 1, wherein The inner wall of the tubular body is irregular.

9. The insect pheromone slow-release device according to claim 8, wherein The tubular body has a recessed connecting part on its inner wall near the opening end, and an inwardly protruding flange is provided at the opening edge of the tubular body below the connecting part; the connecting part is adapted to the size of the locking part of the slow-release plug, and the edge of the end of the slow-release plug below the locking part is a groove that matches the flange.

10. The insect pheromone slow-release device according to claim 1, wherein The tubular body and the slow-release plug are made of rubber.

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