JPH0898639A - Fumigant insecticidal apparatus - Google Patents

Abstract

PURPOSE: To provide a fumigant insecticidal apparatus capable of lifting a volatilizing gas upward high with a rising high-temperature air stream directly heated at a high temperature with a heater in a container body, diffusing the volatilized las within a wide range in a greenhouse and improving the extermination ratio of insect pests of crops. CONSTITUTION: This fumigant insecticidal apparatus is obtained by installing a container body 14 having the opened top surface, a heater 16 attached to the interior of the container body, a lid part 18 placed so as to cover the opening of the container body and a volatilizing cup 20 held by the lid part. The lid part has a cup holding part 22 installed in a recessed form in nearly the central position thereof, an edge plate part 24, connected to the cup holding part and installed so as to stretch over the inner peripheral edge of the container body. Heat radiating holes 26 communicating with the inside and outside of the container body are opened in the edge plate part and an air stream guide part 54 for guiding the air stream rising from the heat radiating holes of the edge plate part to the outer surface or peripheral lateral surface of the volatilizing cup is further provided in the lid part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fumigation insecticidal device for combating pests and diseases caused on crops in agricultural greenhouses.

[0002]

2. Description of the Related Art Conventionally, pesticides have been sprayed in order to control pests and diseases which occur in crops such as vegetables, flowers and fruit trees which are being cultivated in greenhouse greenhouses and glass greenhouses.
However, when spraying pesticides in a closed house,
Even if the worker does not inhale the drug with a mask or the like, there is still a risk that the pesticide may contaminate the worker. In order to prevent the risk of pesticide contamination in the house, an unmanned sprayer and the like have been developed, but the manufacturing cost is high and it has not become popular.

Therefore, in recent years, in order to exterminate diseases and pests generated in crops by smoking and evaporating chemicals such as sulfur in an unmanned house, as shown in FIG. The evaporation tray is fixed in a hermetically sealed manner, the evaporation cup containing the drug is placed in this evaporation tray, and the heater installed in the container body heats the evaporation tray from the bottom side while heating the drug in the evaporation cup with a heater. No. 6-24483 of Japanese Utility Model Application Laid-Open No. 6-24483 proposes a smoke vaporizer that conducts heat to vaporize and evaporate a drug.

[0004]

The vaporized gas of the chemical such as sulfur is heavier than air and immediately descends after being vaporized from the vaporization cup. Therefore, in order to diffuse the vaporized gas in the house, a heater is used. It is necessary to diffuse the vaporized gas upwardly by utilizing the rising air stream of high temperature air heated in the container body. However, in the smoke evaporative evaporator, since the upper surface opening of the container body is closed by the evaporating dish, the rising air stream of the hot air in the container body directly heated by the heater cannot be used, and the heater from the lower surface side is not used. The ascending flow of low-temperature air rising from the upper surface side of the evaporation dish heated by heat conduction raises a problem that the evaporated gas evaporated from the evaporation cup cannot be widely diffused in the house due to rising upward. .

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to evaporate a drug while directly taking out high-temperature air heated to a high temperature by a heater in a container body as an ascending airflow. It is an object of the present invention to provide a fumigation insecticide capable of raising gas upwardly and diffusing transpiration gas over a wide area in a house.

[0006]

In order to achieve the above object, the invention according to claim 1 includes a container body 14 having an opening 12 on an upper surface, and a heater 16 provided in the container body 14. A lid portion 18 placed so as to cover the opening of the container body 14, and an evaporation cup 20 held by the lid portion 18.
In order to hold the evaporation cup 20, the lid portion 18 is provided with a cup holding portion 22 that is recessed at a substantially central position.
And an edge plate portion 24 connected to the cup holding portion 22 so as to be stretched over the inner peripheral edge of the container body 14, and the edge plate portion 24 includes the inside and outside of the container body 14. The fumigation insecticidal device 10 is formed by opening a heat dissipation hole 26 that communicates with the.

Further, in the invention according to claim 2, the heater 16 may be installed on the lower surface of the cup holding portion 22.

Further, in the invention according to claim 3, the lid portion 18 may be formed by integral molding.

Further, in the invention according to claim 4, the lid portion 18 is surrounded so as to be close to the peripheral side surface of the evaporation cup 20 held by the cup holding portion 22, and the edge plate portion 2 is provided.
An air flow guide portion 54 may be provided to guide the high temperature air flow rising from the heat dissipation hole 26 of No. 4 to the outer surface or the peripheral side surface of the evaporation cup 20.

Further, in the invention according to claim 5, the air flow guide portion 54 may be provided so as to project obliquely upward from the peripheral edge side of the edge plate portion 24 toward the peripheral side surface of the evaporation cup 20. .

In the invention according to claim 6, the airflow guide portion 54 may be detachably fixed to the lid portion 18.

[0012]

[Function] Using the fumigant insecticide according to the present invention, when fumigating insects or diseases caused by a crop being cultivated in a house, a suitable amount of the drug is contained in the evaporation cup of the fumigant insecticide. The hanging rod pivotally attached to the container body is hung with a string or the like on the ceiling frame in the house. Depending on the area in the house and the amount of chemicals used, the number of fumigation insecticides to be arranged is determined, and the electric wire extending from each container body is connected to a power source. The fumigation insecticide fumigation time is about 4 to Set the timer provided in the power supply so that it can be controlled for about 5 hours. And
After closing the power switch, the worker evacuates outside the house. Thereby, the Joule heat of the heater in the container body of each fumigation insecticide is conducted from the bottom surface side of the cup holding portion to the evaporation cup on the inner surface side, and the medicine in the evaporation cup is smoked while being heated to a high temperature. , Is evaporated from inside the evaporation cup.

At the same time, the air flowing in the container body is directly heated to a high temperature by the heater, and the heated high temperature air is discharged from the heat radiation holes formed in the edge plate portion at the peripheral edge of the lid portion. An ascending airflow is generated along the outer peripheral portion of the evaporation cup inserted and supported in the cup holding portion and rises high. As a result, the vaporized gas being vaporized from the vaporization cup is highly elevated and diffused to the ceiling portion in the house together with the upward flow of the high-temperature air, and the pest control rate of crops is improved.

Further, since the heater is installed on the lower surface of the cup holder, the heat of the heater is conducted from the cup holder to the evaporation cup and the heating efficiency of the evaporation cup is improved.

Further, since the lid portion including the cup holding portion and the edge plate portion is formed by integral molding, even a lid portion having a complicated shape can be inexpensively manufactured by integral molding such as pressing.

Further, the lid portion is surrounded by a peripheral side surface of the cup held by the cup holding portion, and a high-temperature airflow rising from the heat radiation hole of the edge plate portion is outside the cup. By providing an air flow guide part that guides to the surface or peripheral side surface, even if the external temperature decreases, the outer surface or peripheral side surface of the evaporation cup can be heated by the high temperature air flow rising from the container body, and the evaporation The drug component evaporated in the cup does not crystallize and solidify again on the inner surface of the evaporation cup, and the evaporation efficiency of the drug in the evaporation cup is improved.

Further, since the airflow guide portion is provided so as to project obliquely upward from the peripheral edge side of the edge plate portion toward the peripheral side surface of the cup, the high temperature airflow rising from the heat radiation hole of the edge plate portion. The airflow guide portion can be rectified and guided to the evaporation cup, and the outer surface or the peripheral side surface of the evaporation cup can be heated accurately.

Further, since the airflow guide portion is detachably fixed to the lid portion, even if the lid portion and the airflow guide portion have complicated shapes, they can be easily formed individually. Can be assembled and fixed.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. 1, 2 and 3 show a fumigation insecticide 10 according to a first embodiment of the present invention. As is clear from the figure, the fumigation insecticide 10 is constructed so that the container body 14 having an opening 12 on the upper surface, the heater 16 provided in the container body 14, and the opening 12 of the container body 14 are covered. The lid portion 18 is placed on the lid portion 18. The lid portion 18 is connected to the cup holding portion 22 and the cup holding portion 22 which is provided at a substantially central position for holding the evaporation cup 20. A rim plate portion 24 is provided so as to be stretched over the inner peripheral edge of the main body 14, and a heat dissipation hole 26 that communicates the inside and the outside of the container main body 14 is opened in the rim plate portion 24. It consists of

As shown in FIG. 2, the container body 14 is made of hard synthetic resin, metal or the like, and is formed in a cylindrical shape having a bottom plate 28. Four feet 30 are fixed to the lower surface of the bottom plate 28 in a radial symmetrical manner, and a plurality of ventilation holes 32 are formed at the center position and the peripheral edge of the bottom plate 28. A thick edge portion 34 is formed at the upper end of the container body 12, and both lower ends of a hanging rod 36 are pivotally attached to the edge portion 34 so as to be rotatable. Utilizing the suspension rod 36, the container body 14 is suspended at an intermediate height position in the house. Although the container body 12 is formed in a cylindrical shape, it is not necessarily limited to a cylindrical shape, and may be formed in a polygonal cylindrical shape such as a quadrangle or a hexagon.

As shown in FIGS. 2 and 3, the lid portion 18 is
It is made of a thin metal plate and is composed of a circular lid plate 38 mounted on the upper surface of the container body 14. A cup holding portion 22 having a circular shape in plan view is recessed downward at a substantially central position of the circular lid plate 38, and the container body 14 is provided from an upper end of the cup holding portion 22.
An edge plate portion 24 inclined in a trapezoidal shape is provided around the edge portion 34 at the upper end of the edge plate 24, and a plurality of heat dissipation holes 26 are formed in the edge plate portion 24 at predetermined intervals.

The circular lid plate 38 has its peripheral edge portion fixed to the edge portion 34 at the upper end of the container body 14 by a plurality of machine screws 40 shown in FIG. Thereby, the container body 1
The high-temperature air directly heated by the heater 16 in the heater 4 is evaporated from the heat radiation holes 26 of the edge plate portion 24 of the circular lid plate 38 to the evaporation cup 2
The vaporized gas such as sulfur, which is heavier than the air vaporized from the vaporization cup 20, is elevated upward while taking out the outer peripheral part of 0 as an ascending airflow, and the vaporized gas can be diffused in a wide range in the house. . Further, since the cup holder 22 is recessed from the bottom surface of the evaporative cup 20 so as to surround the peripheral side surface, the heat conductivity to the evaporative cup 20 is high, and the evaporative cup 20 can be heated to a high temperature. As a result, the power consumption of the heater 16 can be saved. Further, the circular lid plate 38 is made of a thin metal plate, and the cup holding portion 22, the edge plate portion 24, the heat radiation holes 26, etc. can be integrally formed by a press machine, and is inexpensive for a complicated shape. Can be manufactured. The cup holder 22 and the edge plate 2
4 and 4 may be separately formed and welded.

As shown in FIGS. 1 and 2, the heater 16
Is formed in a flat plate shape by a heating wire (not shown) wound around an insulating plate and a cover body that tightly surrounds the heating wire from above and below and has a capacity of about 40 W. The heater 16 is joined to the lower surface of the cup holding portion 22 of the circular lid plate 38 and fixed by a plurality of machine screws 42. The heater 16 is not limited to the lower surface of the cup holder 22, and may be fixed by providing a support plate inside the container body 14.

As shown in FIG. 2, a terminal board 48 having a fuse 44, an indicator lamp 46 and the like connected between terminals is installed on the inner bottom portion of the container body 14, and the heater 16 is connected to the terminal board 48. Further, the power supply line 50 connected to the terminal board 48 is extended to the outside from the ventilation hole 32 formed in the bottom plate 28. As a result, the power supply line 50 is connected to an external power source, and the Joule heat generated in the heater 16 is conducted from the cup holding portion 22 of the circular lid plate 38 to the evaporation cup 20 fitted in the cup holding portion 22 to evaporate the evaporation cup. 20
It is a substance for smoking and evaporating a chemical such as sulfur contained therein, and the Joule heat of the heater is directly conducted from the cup holding portion to the evaporation cup to improve the heating efficiency of the evaporation cup.

While the electric current is flowing to the heater 16, the indicator lamp 46 is turned on, and while confirming this from the ventilation hole 32 at the bottom of the container body 14, it is confirmed that the medicine is still dangerous in the smoke. it can. Further, when a current higher than the rated value flows through the heater 16, the fuse 44 operates to protect the heater 16.

The evaporation cup 20 is made of heat-resistant and corrosion-resistant metal, for example, stainless steel, and is formed into a cup shape. A chemical such as sulfur is accommodated in the evaporation cup 20 and fitted into a cup holding portion 22 recessed in the lid portion 18 on the upper surface of the container body 14.

Next, the operation of the fumigation insect killer 10 according to the first embodiment of the present invention will be described. In the case of fumigation killing of diseases and pests that have occurred in a crop being cultivated in an agricultural house, an appropriate amount of a chemical agent such as sulfur is stored in the evaporation cup 20 of the fumigation insecticide 10, and as shown in FIG. The suspension rod 36 pivotally attached to the container body 14 is suspended by a string 52 or the like on the ceiling frame in the house. The number of fumigation insecticides 10 to be arranged is determined according to the area in the house and the amount of chemicals used, and each power supply line 50 is connected to a power source. The fumigation and evaporation time of the fumigation insecticide 10 is approximately 4 times.
Set the timer provided in the power supply so that it can be controlled for about 5 hours.

After closing the switch of the power source, the worker evacuates to the outside of the house, and the Joule heat generated in the heater 16 in the container body 14 of each fumigation insecticide 10 is
Conduction is conducted from the bottom surface side of the cup holder 22 to the evaporative cup 20 on the inner surface side, whereby the chemicals in the evaporative cup 20 are smoked while being heated to a high temperature of about 150 to 180 ° C. It is transpired from inside.

At the same time, the air flowing through the container body 14 is directly heated to a high temperature by the heater 16, and the heated high temperature air is discharged from the heat radiation holes 26 formed in the edge plate portion 24. Ascending air flows along the outer peripheral portion of the evaporation cup 20 fitted in the cup holding portion 22 and rises high. As a result, the vaporized gas being vaporized from inside the vaporization cup 20 is elevated to the ceiling part in the house together with the ascending air current of the high temperature air, and the vaporized gas can be diffused in a wide range in the house to the crop under cultivation. It is possible to improve the extermination rate of the pests that occur.

Next, FIG. 4 to FIG. 8 show the second embodiment of the present invention.
A fumigation insecticide 10 according to an embodiment is shown. This second
The fumigation insecticide 10 of the embodiment has a container body 14 having an open upper surface, and a heater 16 provided in the container body 14.
A lid portion 18 for covering the opening 12 of the container body 14 and an evaporation cup 20 held by the lid portion 18. The lid portion 18 includes a cup holding portion 22 and the cup holding portion 2
2 and an edge plate portion 24 having a heat radiation hole 26 opened. In the figure, the container body 14, the heater 16,
Cup holding portion 22 of lid portion 18, edge plate portion 24, heat dissipation hole 26
Since the configuration such as the above is substantially the same as that of the first embodiment, the same members are designated by the same reference numerals and detailed description thereof will be omitted.

In the fumigation insecticide 10 of the second embodiment, the temperature inside the house gradually decreases due to the decrease in the ambient temperature, and the temperature of only the upper end portion of the evaporation cup decreases, so that the evaporation efficiency decreases due to the precipitation of crystals. It is characterized by dramatically improving the transpiration efficiency at the same time. As shown in FIGS. 4, 5 and 6, the lid portion 18 is surrounded so as to be close to the peripheral side surface of the evaporation cup 20 held by the cup holding portion 22, and the heat radiation of the edge plate portion 24 is performed. An airflow guide portion 54 is provided for guiding the high temperature airflow rising from the holes 26 to the outer surface or the peripheral side surface of the evaporation cup 20.

The airflow guide portion 54 is composed of an annular plate having a donut shape in a plan view and a substantially C-shape in cross section, and an edge plate 56 mounted on the peripheral edge of the edge plate portion 24 at the peripheral edge portion, and this edge plate. 5
The straightening plate 5 is provided so as to project obliquely upward from the inner peripheral edge of 6 toward the outer peripheral surface of the evaporation cup 20 held in the cup holding portion 22.
8 and. The edge plate 56 at the periphery of the airflow guide 54 is detachably fixed to the edge 34 of the container body 12 together with the edge plate 24 by machine screws 40. The rectification guide portion 54 is made of nylon resin. However, the material is not necessarily limited to the nylon resin, and may be formed of a metal plate.

As a result, as shown in FIG. 5, a rectifying gap passage 60 communicating with the evaporation cup 20 is formed on the upper surface of the edge plate portion 24 and the lower surface of the rectifying plate 58 of the airflow guide portion 54, and the container body is formed. The high-temperature air heated by the heater 16 in 14 flows into the rectifying gap passage 60 from the heat radiating hole 26 of the edge plate portion 24, and from the rectifying gap passage 60 along the peripheral side surface of the evaporation cup 20 as shown by an arrow K. As a result, a high-temperature airflow that rises is generated to heat the outer surface or the peripheral side surface of the evaporation cup 20 accurately. Further, even if the lid portion 18 and the air flow guide portion 54 have complicated shapes, they can be individually formed and easily assembled and fixed.

As described above, the fumigation insecticide 1 of the second embodiment
At 0, the high-temperature air heated in the container body 14 protrudes upward from the cup holding portion 22 from the straightening gap passage 60 between the edge plate portion 24 and the airflow guide portion 54.
The temperature of the evaporation cup 20 does not decrease even if the outside temperature gradually decreases and the temperature inside the house decreases as the airflow rises along the peripheral side surface of the upper end of the and increases. Therefore, the sulfur component evaporated in the evaporation cup 20 does not crystallize and solidify on the inner surface of the evaporation cup, and the chemical is evaporated to the end, and the evaporation efficiency of the fumigation insecticide is improved.

[0035]

As described above, according to the fumigant insecticide according to the first aspect of the present invention, the container body having an open upper surface, the heater provided in the container body, and the opening of the container body are covered. In this way, the lid portion and the evaporation cup held by the lid portion are provided, and the lid portion holds the evaporation cup, and thus the cup holding portion is provided at a substantially central position,
An edge plate portion connected to the cup holding portion and provided so as to be stretched over the inner peripheral edge of the container main body, wherein the edge plate portion has a heat dissipation hole for communicating the inside and the outside of the container body. By being opened, the heat of the heater in the container body is conducted to the evaporation cup in the cup holder, and the chemicals in the evaporation cup are smoked and evaporated, and at the same time, the heater in the container body directly raises the temperature. While taking out the heated high-temperature air as an ascending airflow, the transpiration gas can be raised upwards to diffuse the transpiration gas over a wide area in the house, and the pest control rate of pests generated in crops under cultivation can be improved.

According to claim 2, the heater is
By being installed on the lower surface of the cup holding portion, the heat of the heater is directly transferred from the cup holding portion to the evaporation cup, and the heating heat efficiency is improved.

According to the third aspect of the present invention, since the lid portion including the cup holding portion and the edge plate portion is formed by integral molding, even if the lid portion has a complicated structure, it can be integrally molded. It can be manufactured at low cost.

According to a fourth aspect, the lid portion includes:
An airflow guide which is surrounded so as to be close to the peripheral side surface of the evaporative cup held by the cup holding portion and guides a high-temperature airflow rising from the heat dissipation hole of the edge plate portion to the outer surface or the peripheral side surface of the evaporative cup. By providing the part, it is possible to heat the outer surface or the peripheral side surface of the evaporation cup with a high-temperature airflow rising from the container body, and even when the external temperature decreases, chemicals such as sulfur evaporated in the evaporation cup It is possible to dramatically improve the evaporation efficiency of the drug in the evaporation cup without the components crystallizing again on the inner surface of the evaporation cup and solidifying.

According to a fifth aspect, the airflow guide portion is provided so as to project obliquely upward from the peripheral side of the edge plate portion toward the peripheral side surface of the evaporation cup, so that the heat radiation of the edge plate portion is achieved. The high-temperature airflow rising from the holes is rectified and guided to the evaporation cup by the airflow guide portion, and the outer surface or the peripheral side surface of the evaporation cup can be heated accurately.

According to the sixth aspect, the airflow guide portion is detachably fixed to the lid portion, so that even if the lid portion and the airflow guide portion have complicated shapes, Individually formed and easily assembled and fixed.

[Brief description of drawings]

FIG. 1 is a front view of a fumigation insecticide according to a first embodiment of the present invention.

FIG. 2 is a vertical cross-sectional side view of the fumigation insecticide of the first embodiment shown in FIG.

FIG. 3 is a perspective view showing a use state in which the fumigation insecticide of the first embodiment is hung on a string.

FIG. 4 is a front view of a fumigation insecticide according to a second embodiment of the present invention.

5 is a vertical cross-sectional side view of the fumigation insecticide of the second embodiment shown in FIG.

FIG. 6 is a plan view of the fumigation insecticide of the second embodiment with the evaporation cup removed.

FIG. 7 is a plan view of the container main body of the fumigation insecticide of the second embodiment with the airflow guide and the lid removed.

FIG. 8 is a perspective view showing a use state in which the fumigation insecticide of the second embodiment is hung on a string.

FIG. 9 is a vertical cross-sectional explanatory view of a conventional smoke vaporizer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Fumigation insecticide 12 Opening 14 Container body 16 Heater 18 Lid 20 Evaporation cup 22 Cup holding part 24 Edge plate part 26 Radiating hole 54 Airflow guide part 58 Straightening plate 60 Straightening gap 60

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shigeo Sonoki 1530 Tajima, Suisu-machi, Kikuchi-gun, Kumamoto Prefecture (72) Inventor Kimiko Otomo 1273-3 Jinnai, Tatsuta-cho, Kumamoto-shi

Claims (6)

[Claims] 1. A container main body having an open top surface, a heater provided in the container main body, a lid mounted to cover the opening of the container main body, and a transpiration held by the lid. A cup holding part is provided for holding the evaporation cup, and the lid part is connected to the cup holding part and is stretched over the inner peripheral edge of the container body to hold the evaporation cup. A fumigation insecticide formed by radiating a radiating hole communicating between the inside and the outside of the container body in the rim plate portion. 2. The fumigation insecticide according to claim 1, wherein the heater is installed on a lower surface of the cup holding portion. 3. The fumigation insecticide according to claim 1, wherein the lid portion including the cup holding portion and the edge plate portion is formed by integral molding. 4. The lid portion is surrounded by the evaporation cup held by the cup holding portion so as to be close to a peripheral side surface thereof, and evaporates a high-temperature airflow rising from a heat dissipation hole of the edge plate portion. The fumigation insecticidal device according to any one of claims 1 to 3, further comprising: an airflow guide portion that guides the outer surface or the peripheral side surface of the. 5. The fumigation insecticide according to claim 4, wherein the airflow guide portion is provided so as to project obliquely upward from the peripheral side of the edge plate portion toward the peripheral side surface of the evaporation cup. 6. The fumigation insecticide according to claim 4, wherein the airflow guide portion is detachably fixed to the lid portion.