JP2016052261A - Pest control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pest control device capable of reducing an evaporation residue of insecticidal liquid by efficiently transpiring the insecticidal liquid.SOLUTION: There is provided a pest control device 1 in which a medical fluid is dripped and transpired inside an evaporation chamber 20 heated by a heater 9. A transpiration port 5 opening on one surface 2a of a housing 2 and an intake port 25 opening another surface or inside of the housing 2 are formed in the evaporation chamber 20. Accordingly, air is taken from the intake port 25 and evaporated medical fluid is likely to blow out of the transpiration port 5. As a result, the evaporated medical fluid is prevented from accumulating in the evaporation chamber 20, and evaporation of the medical fluid is facilitated.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a pest control apparatus for controlling unpleasant pests, and more particularly, to a fumigation type pest control apparatus that drops a chemical solution on a transpiration dish heated by a heater to evaporate.

  Conventionally, as this kind of pest control apparatus, for example, an environmental hygiene machine disclosed in Patent Document 1 is known. The environmental hygiene machine disclosed in the same document includes a tank filled with an insecticidal solution, a liquid metering supply device for intermittently delivering the insecticide flowing out from the tank, and an insecticidal solution delivered by the liquid metering device. A pest control device having a transpiration plate for transpiration and a heater for heating the transpiration plate is provided.

  In addition, the environmental hygiene machine of the same document includes a fan and a duct connected to the fan. And the blower outlet of the said duct and the blower outlet (transpiration mouth) of the insecticide which was transpired are formed in the front surface of the housing | casing of an environmental sanitary machine.

  With the above configuration, in the environmental hygiene machine, the fan is operated to blow air, the heater is energized to heat the evaporation plate, the insecticide in the tank is sent out by the liquid quantitative supply device, and the heated evaporation plate is heated. Drip on top. Thereby, insecticide in the facility where an environmental sanitary machine is installed can be performed by evaporating the insecticide.

  As another example of the prior art, an unpleasant insect extermination machine disclosed in Patent Document 2 is known. In the unpleasant insect pest control machine disclosed in this document, the insect pest controlling liquid evaporation tray is formed into a cassette so that it can be pulled out from the front of the unpleasant insect control machine. The pest control liquid evaporation tray is inserted so as to be in close contact with the pest control liquid evaporation plate connected to the pest control liquid evaporation heater. This makes it possible to easily clean and replace the pest control liquid evaporation tray and maintain optimum evaporation.

Japanese Patent Laid-Open No. 11-253089 (page 2-3, FIG. 3) Japanese Unexamined Patent Publication No. 2001-309743 (2nd page, FIGS. 3 and 4)

  However, in the above-described prior art, the space (evaporation chamber) in which the insecticide is dropped and evaporated and the opening communicating with the outside is only the transpiration port formed on the front surface of the housing. However, there is a problem that it is difficult to blow out to the outside and easily stays in the evaporation chamber.

  If the evaporated insecticide stays in the evaporation chamber, the evaporation of the insecticide is inhibited, resulting in evaporation failure. Further, since the vapor of the staying insecticidal liquid adheres to the wall surface of the evaporation chamber or the like, tar-like evaporation residues are accumulated inside the evaporation chamber, and the evaporation efficiency is further deteriorated.

  Further, in the configuration in which the duct for flowing air is disposed adjacent to the evaporation chamber for evaporating the insecticide, there is a problem that the evaporation chamber is cooled by the blowing of the fan and the evaporation of the insecticide is inhibited. Similarly, even in a configuration in which a part of the air sent out by the fan is directly guided to the evaporation chamber, the temperature of the evaporation chamber is lowered to cause evaporation failure.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a pest control apparatus capable of efficiently evaporating insecticide and reducing evaporation residue of the insecticide. It is in.

  The pest control apparatus according to the present invention is a pest control apparatus that drops a chemical solution inside a vaporization chamber heated by a heater to evaporate, wherein the vaporization chamber includes a transpiration port that opens on one surface of the case and the case. An air inlet opening on the other side or inside of the body is formed.

  According to the pest control apparatus of the present invention, the evaporation chamber that evaporates the chemical solution is formed with a transpiration port that opens on one surface of the housing and an air intake port that opens on the other surface or inside of the housing. Thereby, air can be taken in from an inlet and it becomes easy to blow out the evaporated chemical | medical solution from a transpiration opening. As a result, it can suppress that the chemical | medical solution which evaporated inside the evaporation chamber stays, and can accelerate | stimulate vaporization of a chemical | medical solution.

  Moreover, the blower outlet of the duct which flows the air sent out by an air blower may be formed so that it may open in one surface of a housing | casing, and the said transpiration port may be formed adjacent to the said blower outlet. Thereby, the chemical | medical solution evaporated from the inside of an evaporation chamber with the flow of the air discharged from a blower outlet can be attracted | sucked. As a result, the chemical solution can be efficiently evaporated and diffused.

  Further, the intake port may be formed with a smaller opening area than the transpiration port. Thereby, the temperature fall of the evaporation chamber due to a large amount of air flowing into the evaporation chamber from the intake port can be suppressed, and a temperature suitable for evaporation can be maintained. Further, the evaporated chemical liquid is efficiently blown out from the transpiration port without flowing back to the intake port.

  Moreover, you may form a space | gap part between the partition member which defines each between the evaporation chamber which evaporates a chemical | medical solution, and the duct which flows air. Thereby, it can suppress that an evaporation chamber is cooled with the air which flows through the inside of a duct. As a result, it is possible to maintain efficient evaporation and suppress the generation of chemical residue.

It is a perspective view which shows the external appearance of the pest control apparatus which concerns on embodiment of this invention. It is a front view which shows schematic structure of the pest control apparatus which concerns on embodiment of this invention. It is side surface sectional drawing which shows schematic structure of the pest control apparatus which concerns on embodiment of this invention (AA line cross section shown in FIG. 2). It is front sectional drawing (BB sectional view shown in FIG. 3) of the evaporation chamber vicinity of the pest control apparatus which concerns on embodiment of this invention. It is side surface sectional drawing (the AA line cross section shown in FIG. 2) of the evaporation chamber vicinity of the pest control apparatus which concerns on embodiment of this invention. It is side surface sectional drawing (C section enlarged sectional view shown in FIG. 5) of the evaporation chamber in the front surface vicinity of the pest control apparatus which concerns on embodiment of this invention. It is a perspective view near the blower outlet and the transpiration mouth of the pest control apparatus according to the embodiment of the present invention. It is side surface sectional drawing (D section enlarged sectional drawing shown in FIG. 5) of the evaporation chamber back surface vicinity of the pest control apparatus which concerns on embodiment of this invention.

Hereinafter, a pest control apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing an appearance of a pest control apparatus 1 according to an embodiment of the present invention. The pest control device 1 is a fumigation type (heated transpiration type) pest control device that heats and evaporates a chemical solution (insecticide solution), and is used in hotels, offices, restaurants, warehouses, and other various facilities. . The pest control apparatus 1 also has a sterilization function and a deodorization function.

  As shown in FIG. 1, the pest control apparatus 1 has a substantially rectangular parallelepiped casing 2 formed of, for example, a stainless steel plate or the like, and a blower outlet that discharges air to the front surface that is one surface of the casing 2. 4 and a transpiration port 5 for discharging the evaporated chemical liquid. A suction port 6 for taking in air is formed on the upper surface of the housing 2. By operating a fan 12 (see FIG. 3) to be described later, air is sucked from the suction port 6 and blown out from the air outlet 4 on the front surface of the housing 2.

  The transpiration port 5 is formed adjacent to the blower outlet 4 and immediately below it. Thereby, the chemical liquid evaporated inside the evaporation chamber 20 (see FIG. 3), which will be described later, connected to the transpiration port 5 is sucked by the air flow blown out from the blowout port 4, and is transferred from the transpiration port 5 to the outside of the housing 2. And is diffused in the facility where the pest control apparatus 1 is installed.

  The substantially center of the front surface of the housing 2 is recessed in a substantially U-shaped horizontal section, and the operation display unit 3 is provided on the front surface 2a which is the surface of the recessed portion. The operation display unit 3 is for performing an operation for starting or stopping the transpiration of the chemical solution, setting of the transpiration amount of the chemical solution, various settings for automatic operation (for example, timer setting, etc.), etc. It is equipped with various switches. In addition, the operation display unit 3 includes a display unit that displays each set value and operation status.

  FIG. 2 is a front view showing a schematic structure of the pest control apparatus 1. As shown in FIG. 2, the pest control apparatus 1 includes a tank 7 for storing a chemical solution, a pump 8 for sending out the chemical solution, and a control device 19 for controlling the driving of the pump 8 inside the housing 2. .

  The tank 7 is a container for storing a chemical solution therein, and is formed from, for example, a synthetic resin such as polyethylene. The tank 7 is disposed at the lower part of the housing 2. Thereby, in the state which put the chemical | medical solution, the pest control apparatus 1 is stabilized with the gravity center kept low.

  The pump 8 is an electromagnetic pump, for example, and is configured so that the flow rate can be adjusted by a signal from the control device 19. The pump 8 is interposed in a pipe 17 that connects the tank 7 and the evaporation chamber 20, and pumps the chemical solution from the inside of the tank 7 to the inside of the evaporation chamber 20.

  In this way, by providing the pump 8 with adjustable flow rate, the chemical liquid can be dripped after being adjusted to a supply amount suitable for evaporation according to the type and the like, and evaporation residue is efficiently evaporated. Can do.

  FIG. 3 is a side sectional view showing a schematic structure of the pest control apparatus 1, and shows a cross section taken along line AA shown in FIG. In FIG. 3, the air flow is schematically indicated by solid arrows, and the flow of the evaporated chemical liquid is schematically indicated by broken arrows.

  As shown in FIG. 3, a duct 10 that connects a suction port 6 formed on the upper surface of the housing 2 and an air outlet 4 formed on the front surface of the housing 2 is formed inside the housing 2. The The duct 10 is configured by combining, for example, a plurality of partition members that are bent into a predetermined shape from a stainless steel plate or the like.

  A fan 12 (blower) that sucks air from the outside of the housing 2 and sends it out to the inside of the duct 10 is disposed inside the duct 10, specifically, in the vicinity of the suction port 6 of the duct 10. The fan 12 is a blower including, for example, an axial flow type propeller fan and a motor. As described above, by operating the fan 12, air is sucked from the suction port 6 and blown out from the air outlet 4 on the front surface of the housing 2.

  The pest control device 1 includes a sterilization and deodorization device (not shown) that sterilizes and deodorizes the air flowing inside the duct 10. Examples of the sterilization deodorizer include an ozone generator that generates ozone inside the duct 10. Moreover, you may provide the UV sterilizer which irradiates an ultraviolet-ray inside or the outside of the duct 10. FIG. By operating the sterilization deodorization device and the fan 12, the ozone generated by the ozone generator is diffused in the facility, or the air flowing in the duct 10 is sterilized and deodorized by the UV sterilization device. Can be sterilized and deodorized.

  A control device 19 is disposed in front of the duct 10 inside the housing 2. The control device 19 executes a predetermined calculation based on the predetermined set value and the input value of the temperature sensor 18 and the like, and controls the operation of the pump 8 (see FIG. 2), the fan 12, the heater 9, and the sterilization deodorizing device. To do.

  Below the duct 10 is formed an evaporation chamber 20 for evaporating the chemical solution. The evaporation chamber 20 is a space defined by combining a plurality of partition members (a lower member 22 and an upper member 23 described later) bent from, for example, a stainless steel plate or an aluminum steel plate. In the evaporation chamber 20, a transpiration port 5 that opens to the front surface 2 a of the housing 2 and an intake port 25 that opens to the inside or the back surface of the housing 2 are formed.

  4 is a front cross-sectional view of the vicinity of the evaporation chamber 20 of the pest control apparatus 1, and shows a cross section taken along line BB shown in FIG. As shown in FIG. 4, the evaporation chamber 20 is defined by joining a lower member 22 constituting a heating plate and an upper member 23 constituting an upper lid.

  The lower member 22 is formed of a material having good heat conductivity, such as an aluminum steel plate, and has a substantially hat-like shape that protrudes downward in the front cross section. Specifically, the lower member 22 includes a substantially plate-shaped bottom surface portion 22a serving as a plate for heating the chemical solution, and a side surface portion 22b bent substantially vertically upward from the left and right ends of the bottom surface portion 22a. And a flange portion 22d that is bent substantially horizontally outward from the upper end portions of the left and right side surface portions 22b.

  The upper member 23 is a plate-like body made of, for example, a stainless steel plate or the like, and a lid shape in which the vicinity of both left and right ends is joined to the flange portion 22d of the lower member 22 by welding or screw fastening or the like and closes the upper portion of the evaporation chamber 20. Make up body.

  The evaporation chamber 20 is attached with a heater 9 for heating the inside of the evaporation chamber 20 and evaporating the chemical liquid dropped into the evaporation chamber 20. The heater 9 is an electric resistance heater having a substantially plate-like form, for example, a substantially plate-like heating resistor such as a nichrome wire, an insulator covering the upper and lower surfaces, and a metal covering the outer surface. And a board.

  The heater 9 is disposed so as to be in close contact with the lower surface of the bottom surface portion 22a of the lower member 22 via a heat transfer member 26 made of a metal plate or the like having good heat conductivity, and is sandwiched between the fixing member 27 and the bottom surface portion 22a. It is fixed by screw fastening or the like. The heat transfer member 26 functions as a spacer for filling a gap generated between the heater 9 and the bottom surface portion 22a by attaching a temperature sensor 18 described later. Thereby, the heat of the heater 9 can be efficiently transmitted to the lower member 22.

  A temperature sensor 18 for detecting the heating temperature by the heater 9 is attached to the evaporation chamber 20. Specifically, the temperature sensor 18 is inserted from above into a through-hole formed at substantially the center of the heater 9, and the vicinity of the tip is sandwiched between the bottom surface portion 22 a of the lower member 22 and the heater 9, and the bottom surface thereof. It is fixed so as to be in direct contact with the portion 22a. Thereby, the temperature of the bottom face part 22a vicinity used as the plate which heats a chemical | medical solution can be detected correctly.

  That is, for example, when the temperature sensor 18 is attached to the side surface portion 22b or the back surface portion 22c (see FIG. 5), the vicinity of the temperature sensor 18 is cooled by air flowing in from the intake port 25, air around the evaporation chamber 20, or the like. As a result, the detection temperature is lowered. On the other hand, in the present application, the temperature sensor 18 is attached in the approximate center of the heater 9 and in contact with the bottom surface portion 22a serving as a heating plate, so that an accurate temperature in the vicinity of the heating surface for heating the chemical solution is detected. be able to.

  And the control apparatus 19 (refer FIG. 2) controls electricity supply of the heater 9 so that the temperature of the bottom face part 22a of the evaporation chamber 20 detected by the temperature sensor 18 may maintain predetermined | prescribed target temperature (for example, 320 degreeC). . Thereby, suitable evaporation of a chemical | medical solution can be maintained.

  FIG. 5 is a side cross-sectional view of the vicinity of the evaporation chamber 20 of the pest control apparatus 1, and shows a cross section taken along line AA shown in FIG. In FIG. 5, the air flow in the duct 10 is schematically shown by solid line arrows, the flow of evaporated chemical liquid is shown by broken line arrows, and the air flow taken into the evaporation chamber 20 from the intake port 25 is shown by chain line arrows. ing.

  As shown in FIG. 5, the front end of the lower member 22 defining the evaporation chamber 20 is bent upward and connected to the transpiration port 5 formed on the front surface 2 a of the housing 2. On the other hand, a back surface portion 22c is formed at the back surface end of the lower member 22 so as to bend upward substantially vertically from the back surface end of the bottom surface portion 22a.

  Inside the evaporation chamber 20, an evaporating dish 21 that drops and evaporates a chemical solution on the upper surface of the evaporation chamber 20 is removably accommodated. The evaporating dish 21 has a substantially box-like shape bent from, for example, a stainless steel plate or an aluminum steel plate, and the bottom surface thereof is disposed in close contact with the bottom surface portion 22 a of the evaporation chamber 20.

  Here, the transpiration port 5 formed in the front surface 2a of the housing 2 is opened to a size through which the evaporating dish 21 can pass. That is, the evaporating dish 21 can be taken in and out of the evaporating chamber 20 through the evaporating port 5. Thereby, after using the pest control apparatus 1, the evaporating dish 21 can be removed and easily cleaned or replaced. Therefore, it can suppress that heat transfer is inhibited by the evaporation residue of a chemical | medical solution accumulating on an evaporation surface, and can maintain the suitable transpiration of a chemical | medical solution.

  The partition member 11 that defines the lower portion of the duct 10 and the upper member 23 that is the partition member that defines the upper portion of the evaporation chamber 20 are spaced apart from each other with a predetermined gap (gap portion 15). . That is, a gap 15 is formed between the partition member 11 of the duct 10 and the upper member 23 of the evaporation chamber 20. Thereby, it is possible to suppress the evaporation chamber 20 from being cooled by the air flowing through the duct 10. As a result, it is possible to maintain efficient evaporation and suppress the generation of chemical residue.

  Note that the partition member 11 and the upper member 23 are close to each other in the vicinity of the front surface of the housing 2. That is, the transpiration port 5 connected to the evaporation chamber 20 and opened to the front surface 2a of the housing 2 is formed adjacent to and directly below the air outlet 4 of the duct 10 through which the air sent out by the fan 12 flows. The mouth 5 is defined by the partition member 11 and the upper member 23.

  FIG. 6 is a side cross-sectional view of the evaporation chamber 20 in the vicinity of the front surface 2a of the pest control apparatus 1, and shows an enlargement of the portion C shown in FIG. FIG. 7 is a perspective view of the vicinity of the air outlet 4 and the transpiration port 5 as viewed from diagonally forward. In FIG. 6, the air flow in the duct 10 is schematically indicated by solid arrows, the flow of evaporated chemical liquid is indicated by broken arrows, and the air flow taken into the evaporation chamber 20 from the intake port 25 is indicated by chain arrows.

  As shown in FIG. 6, in the vicinity of the air outlet 4, the partition member 13 that configures the upper surface of the duct 10 and the partition member 11 that configures the lower surface extend forward, and the front surface 2 a of the housing 2 (substantially the front center). It protrudes in front of the surface of the recessed part. The front end 11a of the partition member 11 is bent substantially vertically downward, and the lower end thereof is further folded inward (back side).

  Here, at the boundary between the air outlet 4 and the transpiration port 5, the front end 11b of the partition member 11 is substantially flush with the front surface 2a of the recessed portion of the housing 2 or on the inner side of the front surface 2a. The upper member 23 is formed at the same position as the front end 23a.

  As shown in part E of FIG. 7, the front end 11 a of the partition member 11 extending forward from the front surface 2 a of the housing 2 is substantially the same as the front surface 2 a of the housing 2 in the upper part of the evaporation port 5. It is cut out in a generally U-shape when viewed from the top so that it is located inside the position or the front surface 2a (front end 11b). Thereby, the chemical | medical solution evaporated from the inside of the evaporation chamber 20 with the flow of the air discharged from the blower outlet 4 can be efficiently sucked and diffused.

  FIG. 8 is a side cross-sectional view of the vicinity of the back surface of the evaporation chamber 20 of the pest control apparatus 1, and shows an enlarged portion D shown in FIG. In FIG. 8, the air flow in the duct 10 is schematically indicated by solid line arrows, and the air flow taken into the evaporation chamber 20 from the intake port 25 is schematically indicated by chain line arrows.

  As shown in FIG. 8, the back surface portion 22c that is continuously bent and erected from the bottom surface portion 22a is formed lower than the left and right side surface portions 22b (see FIG. 4). As a result, an air inlet 25 that is a gap through which air can flow is formed between the upper end of the back surface portion 22 c and the upper member 23. That is, the inside and the outside of the evaporation chamber 20 are communicated with each other by the intake port 25.

  In this manner, by forming the intake port 25 above the back surface portion 22c of the evaporation chamber 20, air can be taken into the evaporation chamber 20 from the intake port 25. Thereby, it is suppressed that the chemical | medical solution which evaporated in the inside of the evaporation chamber 20 stays, a chemical | medical solution becomes easy to blow out from the transpiration port 5, and evaporation of a chemical | medical solution can be accelerated | stimulated.

  Here, the intake port 25 has a smaller opening area than the transpiration port 5, and it is sufficient that a slight gap is secured between the upper end of the back surface portion 22 c and the upper member 23. For example, the opening height of the intake port 25, that is, the distance between the upper end of the back surface portion 22c and the upper member 23 is about 1 to 2 mm.

  Thereby, it is possible to prevent a large amount of air from flowing into the interior of the evaporation chamber 20 from the intake port 25 and to suppress a temperature drop of the evaporation chamber 20. And the inside of the evaporation chamber 20 can be maintained at a temperature suitable for evaporation. Further, the evaporated chemical liquid is efficiently blown out from the transpiration port 5 without flowing back to the intake port 25.

  Further, by forming the intake port 25 so as to communicate with the inside of the housing 2, the air around the evaporation chamber 20 heated by heat leaking from the heater 9 to the outside can be sucked into the evaporation chamber 20. it can. Thereby, it can suppress that the temperature inside the evaporation chamber 20 falls, can maintain favorable evaporation, and can prevent the malfunction which the inside of the housing | casing 2 overheats.

  In addition, in said embodiment, although the blower outlet 4 which discharges air and the transpiration port 5 which discharge | releases the evaporated chemical | medical solution were formed in the front surface of the housing | casing 2, the blower outlet 4 and the transpiration port were demonstrated. The position of 5 is not limited to this. The blower outlet 4 and the transpiration port 5 should just be formed in any one surface of the housing | casing 2, for example, you may form the blower outlet 4 and the transpiration port 5 in the upper surface of the housing | casing 2, a side surface, or a bottom face. In this case, the intake port 25 may be formed so as to open to the other surface, which is a surface different from the one surface on which the air outlet 4 and the transpiration port 5 are formed.

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Pest control apparatus 2 Housing | casing 4 Outlet 5 Evaporation port 6 Suction port 7 Tank 8 Pump 9 Heater 10 Duct 11 Partition member 12 Fan 15 Cavity part 20 Evaporating chamber 21 Evaporating dish 22 Lower member 22a Bottom surface part 23 Upper member 25 Inlet port

Claims (4)

A pest control device that drops and evaporates a chemical solution inside an evaporation chamber heated by a heater,
The pest control apparatus, wherein the evaporation chamber is formed with a transpiration port opening on one surface of the housing and an air inlet opening on the other surface or inside of the housing. A duct for flowing air sent out by a blower;
A blower opening connected to the duct and opening in one surface of the housing;
The transpiration port is formed adjacent to the air outlet,
The pest control apparatus according to claim 1, wherein the air inlet has an opening area smaller than that of the transpiration port.   The pest control apparatus according to claim 2, wherein a gap is formed between partitioning members defining each of the evaporation chamber and the duct. A tank for storing the chemical solution;
A pump for sending out a chemical from the tank and dropping it into the evaporation chamber;
A heater provided on the bottom surface of the evaporation chamber;
An evaporating dish that is removably accommodated inside the evaporating chamber,
The pest control apparatus according to any one of claims 1 to 3, wherein the chemical liquid is dropped on the evaporating dish.

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