Insect trap

Abstract

To provide an insect trap with improved insect trapping performance.SOLUTION: The insect trap of the present invention sucks, by a suction fan 8, insects attracted by an attracting light source 3 through a suction port 5 provided around the attracting light source 3 or at a central portion of the attracting light source 3, and captures the insects by an insect trapping net 9. The suction fan 8 is surrounded by a shroud 7. An upper end is formed into an inverted funnel shape to reduce an opening of the suction port 5.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an insect trap for capturing flying insects. [Background technology]

[0002] As the insect trap, for example, one that uses a circular fluorescent tube as an attracting light source and has a suction fan provided below is known (for example, Patent Documents 1 and 2). In such insect traps, insects are attracted to the attracting light source, are sucked in by a suction fan located below, and are trapped in an insect net. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 3-31868 [Patent Document 2] Patent No. 3057127 Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned conventional insect traps had a large suction port at the bottom of the light source to widely suck in the insects that had gathered around the light source, but the suction fan was a lightweight and inexpensive one like a ventilation fan, not like a vacuum cleaner that powerfully sucks in insects. Therefore, the attracted insects were not always sucked in, and some were seen to continue flying around the attracting lamp. In addition, some insects that had been caught once were seen to fly out or crawl out again.

[0005] SUMMARY OF THE INVENTION In view of the above circumstances, the present invention provides an insect trap that has improved insect catching ability while using a suction fan with the same capacity as conventional traps. [Means for solving the problem]

[0006] The insect trap of the present invention described in claim 1 is an insect trap that captures pests attracted by an attracting light source 3 into an insect trapping net 9 using a suction fan 8 positioned below the attracting light source 3, and is characterized in that the suction fan 8 is installed inside a cylindrical case 72, a suction section 71 having a structure that narrows into an inverted funnel shape is formed at the upper end of the cylindrical case 72, and a suction port 5 is formed at the upper end of the suction section 71. The present invention described in claim 2 is characterized in that, in the insect trap described in claim 1, the power connection part 4 that supplies power to the attracting light source 3 is positioned below the attracting light source 3, so that light from the attracting light source 3 is emitted upward. The present invention described in claim 3 is characterized in that, in the insect trap described in claim 1, a donut-shaped umbrella-shaped reflector 10 of white or yellowish color is provided on the outer periphery of the suction port 5, and the umbrella-shaped reflector 10 diffuses the light from the attracting light source 3 to the surrounding area. The present invention described in claim 4 is characterized in that, in the insect trap described in any one of claims 1 to 3, a part of the attracting light source 3 or a part of the power connection part 4 is arranged so as to enter the suction port 5. [Effects of the Invention]

[0007] As described above, the insect trap according to the present invention can efficiently trap insects without increasing the capacity of the suction fan, and can provide an excellent insect trap in which insects once caught are unlikely to fly out or crawl out again. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a cross-sectional view of an insect trap according to an embodiment of the present invention; [Figure 2] 1 is a cross-sectional view of an insect trap according to another embodiment of the present invention; [Figure 3] A photograph of the insect trap shown in Figure 2 DETAILED DESCRIPTION OF THE INVENTION

[0009] The insect trap of the present invention has an attracting light source that attracts insects, and a suction fan below it that sucks in the insects. The suction fan is surrounded by a cylindrical housing called a shroud, and is structured so that its cross section narrows in an inverted funnel shape toward the attracting light source at the top. The attracting light source is placed within the opening at the top end of the shroud. According to this configuration, the cross-sectional area of ​​the airflow sucked in by the suction fan is narrowed at the opening where the attracting light source is provided, so the flow rate increases, and insects attracted to the attracting light source can be easily sucked inside.

[0010] In the insect trap of the present invention, an LED bulb can be used as the attracting light source, and the attracting light source can be inverted or upright, with part of the attracting light source or part of the power supply connection part that supplies power to the attracting light source inserted into the suction port of the shroud.

[0011] A doughnut-shaped white or yellow umbrella-shaped reflector is provided around the periphery of the suction port, and the light from the attracting light source is reflected by the umbrella-shaped reflector, effectively attracting insects. The umbrella-shaped reflector is not a separate component from the shroud, and it is also effective to use the outside of the inverted funnel-shaped shroud in a white or yellow color.

[0012] By making the inner surface of the inverted funnel-shaped shroud smooth, insects that have been trapped inside can be prevented from crawling out again. [Example]

[0013] An insect trap according to an embodiment of the present invention will now be described with reference to the accompanying drawings. The insect trap according to this embodiment is for capturing flying insects.

[0014] A suction fan 8 that sucks in flying insects is disposed below the attracting light source 3, and is surrounded by a cylindrical case 72. A suction section 71 narrowed into an inverted funnel shape is formed at the upper end of the cylindrical case 72, and a suction port 5 is formed at the upper end of the suction section 71. In this way, the shroud 7 in which the suction fan 8 is disposed is formed by the cylindrical case 72, the suction part 71, and the suction port 5, and the cross-sectional area of ​​the suction port 5 is smaller than the cross-sectional area of ​​the cylindrical case 72. The suction port 5 is preferably cylindrical in shape and has a predetermined height as shown in the figure. A bee net 6 is placed inside the suction port 5 or the suction section 71, and prevents large insects such as pollination bumblebees that are released into the field from being accidentally captured by the bee net 6. The bee net 6 has larger mesh than the insect trapping net 9. The insect trapping net 9 is placed at the lower end of the shroud 7 that surrounds the suction fan 8, so that insects sucked in by the suction fan 8 are captured in the insect trapping net 9. A hanging chain 1 is attached to the suction port 5 of the shroud 7, allowing the insect trap to be hung from a structure such as an agricultural greenhouse. The power cable 2 connected to the attracting light source 3 and the suction fan 8 can also be connected upward in the same way as the hanging chain 1.

[0015] In the embodiment shown in Figure 2, the attracting light source 3 is placed upside down, with part of it protruding into the suction port 5. By placing a white or yellowish doughnut-shaped umbrella-shaped reflector 10 around the periphery of the suction port 5, the light from the attracting light source 3 is reflected around the suction port 5, enhancing the attracting effect. This umbrella-shaped reflector 10 can also be installed in the configuration shown in Figure 1 to enhance the attracting effect. Note that it is preferable to use the same color scheme for the umbrella-shaped reflector 10 and the suction part 71 as the attracting light source 3, depending on the insects to be attracted. In both the embodiments of Figures 1 and 2, the outer and inner surfaces of the shroud 7 are painted in a white color that reflects the light of the attraction light source 3 well, or in a color tone that matches the wavelength of the attraction light source 3, thereby enhancing the attraction effect of the reflected light.

[0016] As shown in Figures 1 and 2, the insect trap has a suction fan 8 installed in a cylindrical case 72. Above the suction fan 8, a suction section 71 is formed, which has a cylindrical shape that narrows into an inverted funnel shape, so the speed of the airflow generated by the suction fan 8 is increased.

[0017] The end of the inverted funnel-shaped suction section 71 is the suction port 5, and the attracting light source 3 is arranged at or above the suction port 5. Insects attracted by the attracting light source 3 fly around the light source, and any insects approaching the suction port 5 at this time are sucked into the inside of the shroud 7 from the suction port 5 by the fast air current and are captured by the insect trapping net 9. By arranging a part of the attracting light source 3 or a part of the power supply connection part (socket) 4 that supplies power to the attracting light source 3 in a position that fits into the suction port 5, the speed of the airflow generated by the suction fan 8 is further increased, making it easier to suck in the attracted insects. A hanging chain 1 used for setting up the insect trap of the present invention is attached to the suction port 5, so that the trap can be hung and set up in an agricultural greenhouse or the like. In addition, a bee net 6 is installed inside the suction port 5 to prevent insects such as bumblebees released for pollination from being caught by mistake.

[0018] Some of the insects caught in the insect net 9 will try to fly out again, but the fast airflow around the suction port 5 makes it difficult for them to do so. Some of the insects caught in the insect net 9 will also try to crawl out, but the inner surface of the inverted funnel-shaped suction section 71 is glossy and smooth, making it slippery, and the inverted slope makes it difficult for them to crawl out. As captured insects gradually accumulate in the insect net 9, the user can remove the insect net 9, discard the dead insects, and then reattach it to the shroud 7 to continue catching insects.

[0019] 2 shows an example in which an umbrella-shaped reflector 10 is provided around the suction port 5. By providing the umbrella-shaped reflector 10 with a white or yellow exterior, the light from the attracting light source 3 is diffused to the surroundings, increasing the shining area and making it possible to attract more insects. Also, instead of providing a separate umbrella-shaped reflector 10, it is possible to use the inverted funnel-shaped suction section 71 with an exterior that is white or yellow as a substitute for the umbrella-shaped reflector 10. [Industrial Applicability]

[0020] The insect trap according to the present invention is used by hanging it in an agricultural greenhouse or the like. [Explanation of symbols]

[0021] 1 Hanging chain 2 power cables 3. Attractive light source 4 Power connection (socket) 5 Suction port 6. Bee net 7. Shroud 8. Suction fan 9. Insect Net 10 Umbrella reflector 71 Suction part 72 Cylindrical Case

Claims

1. An insect trap that captures pests attracted by an attracting light source into an insect net using a suction fan disposed below the attracting light source, The suction fan is installed inside a cylindrical case, and a suction section having a structure narrowing in an inverted funnel shape is formed at the upper end of the cylindrical case; An insect trap characterized in that a suction port is formed at the upper end of the suction part.

2. 2. The insect trap according to claim 1, wherein a power supply connection section for supplying power to the attracting light source is disposed below the attracting light source, so that light from the attracting light source is emitted upward.

3. The insect trap of claim 1, characterized in that a white or yellowish donut-shaped umbrella-shaped reflector is provided around the periphery of the suction port, and the umbrella-shaped reflector diffuses light from the attracting light source to the surrounding area.

4. 4. The insect trap according to claim 1, wherein a part of the attracting light source or a part of the power supply connection part is disposed so as to enter the suction port.

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