JP6534112B2 - Pest control device - Google Patents

Description

  The present invention relates to a pest control device for controlling unpleasant pests, and more particularly to a fumigation type pest control device in which a chemical solution is dropped on a transpiration plate heated by a heater to evaporate.

  Conventionally, as a pest control device of this type, for example, an environmental hygiene machine disclosed in Patent Document 1 is known. The environmental sanitation machine disclosed in the same document comprises a tank filled with an insecticide liquid, a liquid quantitative supply device for intermittently delivering an insecticide liquid flowing out from the tank, and an insecticide liquid delivered by the liquid quantitative supply device. The pest control device has a transpiration plate for transpiration and a heater for heating the transpiration plate.

  Moreover, the environmental hygiene machine of the said document is equipped with the fan and the duct connected to the fan. And the outlet of the said duct and the outlet (transpiration outlet) of the evaporated insecticidal liquid are formed in the front of the case of an environmental sanitation machine.

  According to the above configuration, in the environmental hygiene machine, the fan is operated to blow air, the heater is energized to heat the transpiration plate, and the insecticide liquid in the tank is sent out by the liquid quantitative supply device to be heated. Drop it on the top. In this way, the insecticide liquid can be evaporated to kill the inside of the facility where the environmental sanitation machine is installed.

  Also, as another example of the prior art, an unpleasant pest control device disclosed in Patent Document 2 is known. In the offensive pest control device disclosed in the document, the pest control liquid transpiration dish is cassetteed so that it can be pulled out from the front of the offensive pest control device. Then, the pest control liquid transpiration plate is inserted in close contact with the pest control liquid transpiration plate connected to the pest control liquid transpiration heater. This makes it possible to easily clean and replace the pest control liquid transpiration plate and maintain optimal transpiration.

JP-A-11-253089 (page 2-3, FIG. 3) JP, 2001-309743, A (page 2, FIGS. 3, 4)

  However, in the above-described prior art, the opening for communicating the space (evaporation chamber) for dripping and evaporating the insecticide liquid with the outside thereof is only the evaporation port formed on the front surface of the housing. There is a problem that it is hard to blow out to the outside and it is easy to stay inside the evaporation chamber.

  If the evaporated insecticide liquid stays inside the evaporation chamber, the evaporation of the insecticide liquid is inhibited to cause poor evaporation. In addition, since the vapor of the remaining insecticide liquid adheres to the wall surface or the like of the evaporation chamber, tar-like evaporation residue is accumulated inside the evaporation chamber, which further deteriorates the efficiency of evaporation.

  Moreover, in the structure which arrange | positions the duct which flows air adjacent to the evaporation chamber which evaporates an insecticidal liquid, there existed a problem that an evaporation chamber is cooled by ventilation of a fan and evaporation of an insecticidal liquid is inhibited. Similarly, even in the configuration in which a part of the air sent by the fan is directly led to the evaporation chamber, the temperature of the evaporation chamber is lowered to cause poor evaporation.

  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 the insecticide liquid to reduce evaporation residue of the insecticide liquid. It is in.

The pest control device according to the present invention is a pest control device which drops a chemical solution into the evaporation chamber heated by a heater to evaporate the chemical solution, and includes a duct through which air sent out by a blower flows, and one surface of a casing connected to the duct. And an evaporation port which is open adjacent to the air outlet and which is open to one surface of the housing and an air inlet which is opened to the other surface or inside of the housing in the evaporation chamber. is formed, said air inlet, wherein the opening area than the evaporation port formed not lead to the duct between the upper end of the rear portion of the evaporation chamber and the upper member is small.

  According to the pest control device of the present invention, in the evaporation chamber for evaporating the chemical solution, a transpiration port opened in one surface of the housing and an air inlet port opened in the other surface or inside of the housing are formed. As a result, air can be taken in from the intake port, and the evaporated chemical solution can be easily blown out from the transpiration port. As a result, it is possible to suppress the retention of the evaporated chemical solution inside the evaporation chamber, and to promote the evaporation of the chemical solution.

  Moreover, the blower outlet of the duct which lets the air sent out by a fan flow may be formed so that it may be opened to one surface of a housing | casing, and the said transpiration | evaporation outlet may be formed adjacent to the said blower outlet. Thereby, the chemical solution evaporated from the inside of the evaporation chamber can be sucked by the flow of air discharged from the blowout port. As a result, evaporation and diffusion of the chemical solution can be efficiently performed.

  In addition, the inlet may be formed to have a smaller opening area than the transpiration port. As a result, it is possible to suppress the temperature drop of the evaporation chamber due to the large amount of air flowing into the inside of the evaporation chamber from the intake port, and it is possible to maintain a temperature suitable for evaporation. In addition, the evaporated chemical solution is efficiently blown out from the transpiration port without flowing back to the air intake port.

  Further, between the evaporation chamber for evaporating the chemical solution and the duct for flowing the air, a void may be formed between the partition members which respectively define the same. This can suppress cooling of the evaporation chamber by the air flowing in the duct. As a result, efficient evaporation can be maintained, and generation of residual liquid chemical can be suppressed.

It is a perspective view showing the appearance of the pest control device concerning the embodiment of the present invention. It is a front view showing a schematic structure of a pest control device concerning an embodiment of the present invention. It is a side sectional view showing a schematic structure of a pest control device concerning an embodiment of the present invention (A-A line section shown in Drawing 2). It is a front sectional view (the BB line section shown in Drawing 3) of the evaporation room neighborhood of the pest control device concerning the embodiment of the present invention. It is a side sectional view (A-A line section shown in Drawing 2) of the evaporation room neighborhood of the pest control device concerning an embodiment of the present invention. It is a side sectional view (C section enlarged sectional view shown in Drawing 5) near the front of a pest control device concerning an embodiment of the present invention. It is a perspective view of the blow-off mouth of a pest control device concerning an embodiment of the present invention, and the evaporation mouth neighborhood. It is a side sectional view (D section enlarged sectional view shown in Drawing 5) near the evaporation room back of an insect control device concerning an embodiment of the present invention.

Hereinafter, a pest control device according to an embodiment of the present invention will be described in detail based on the drawings.
FIG. 1 is a perspective view showing the appearance of a pest control device 1 according to an embodiment of the present invention. The pest control device 1 is a fumigation type (heat transpiration type) pest control device that heats and vaporizes a chemical solution (insectic liquid), and is used in a hotel, an office, a restaurant, a warehouse, and various other facilities. . In addition, the pest control device 1 also has a sterilization function and a deodorizing function.

  As shown in FIG. 1, the pest control device 1 has a substantially rectangular parallelepiped housing 2 formed of, for example, a stainless steel plate or the like, and an outlet for discharging air on the front surface which is one surface of the housing 2. 4 and a transpiration port 5 for releasing the evaporated chemical solution are formed. Further, 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) described later, air is sucked from the suction port 6 and blown out from the blowout port 4 on the front surface of the housing 2.

  The transpiration port 5 is formed adjacent to the blowout port 4 and immediately below it. As a result, the chemical solution evaporated in 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 transferred from the transpiration port 5 to the outside of the housing 2. And released into the facility where the pest control device 1 is installed.

  A substantially central portion of the front surface of the housing 2 is recessed in a substantially U-shape in a horizontal cross section, and the operation display unit 3 is provided on the front surface 2 a which is a surface of the recessed portion. The operation display unit 3 is for performing an operation to start or stop transpiration of the chemical solution, setting of the transpiration amount of the chemical solution, various settings (for example, timer setting etc.) of the automatic operation, etc. Are equipped with various switches. In addition, the operation display unit 3 has a display unit and the like for displaying each set value and the driving condition.

  FIG. 2 is a front view showing a schematic structure of the pest control device 1. As shown in FIG. 2, the pest control device 1 is provided with a tank 7 for containing a chemical solution, a pump 8 for delivering the chemical solution, and a control device 19 for controlling the drive of the pump 8 inside the housing 2. .

  The tank 7 is a container for storing a chemical solution inside, and is formed of, for example, a synthetic resin such as polyethylene. The tank 7 is disposed below the housing 2. Thereby, the center of gravity of the pest control device 1 is kept low and stabilized in the state where the chemical solution is put.

  The pump 8 is, for example, an electromagnetic pump, and the flow rate can be adjusted by a signal from the control device 19. The pump 8 is interposed in a pipe 17 connecting 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.

  Thus, by providing the pump 8 with adjustable flow rate, it is possible to adjust and drop the chemical solution at a supply amount suitable for evaporation according to the type etc., and efficiently evaporate the evaporation residue little. Can.

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

  As shown in FIG. 3, a duct 10 connecting the suction port 6 formed on the upper surface of the housing 2 and the blowout port 4 formed on the front surface of the housing 2 is formed inside the housing 2. Ru. The duct 10 is configured, for example, by combining a plurality of partition members formed by bending a stainless steel plate or the like into a predetermined shape.

  Inside the duct 10, in detail, in the vicinity of the suction port 6 of the duct 10, a fan 12 (blower) which sucks in air from the outside of the housing 2 and sends it out to the inside of the duct 10 is disposed. The fan 12 is, for example, a blower provided with an axial flow 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 blowout port 4 on the front surface of the housing 2.

  In addition, the pest control apparatus 1 is equipped with the sterilization deodorizing apparatus (not shown) which disinfects and deodorizes the air which flows through the inside of the duct 10. As shown in FIG. Examples of the sterilization and deodorizing device include an ozone generator that generates ozone inside the duct 10 and the like. Moreover, you may provide the UV sterilizer which irradiates an ultraviolet-ray to the inside or the exterior of the duct 10. FIG. By operating the sterilizing deodorizing device and the fan 12, the ozone generated by the ozone generating device is diffused into the facility, or the air flowing through the duct 10 and the like is disinfected and deodorized by the UV sterilizing device, thereby Can be disinfected and deodorized.

  A control device 19 is disposed in front of the duct 10 inside the housing 2. The control device 19 executes predetermined calculations based on predetermined set values and input values 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 germicidal deodorizing device etc. It is

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

  FIG. 4: is front sectional drawing of evaporation chamber 20 vicinity of the pest control apparatus 1, and has shown the BB cross section 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 of good thermal conductivity, such as an aluminum steel plate or the like, and in a front cross section, has a substantially hat-like configuration that is convex downward. Specifically, the lower member 22 has a substantially plate-like bottom portion 22a serving as a plate for heating a chemical solution, and a side portion 22b continuously bent substantially vertically upward from the left and right ends of the bottom portion 22a; And a flange portion 22d which 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 the vicinity of the left and right end portions thereof is joined to the flange portion 22d of the lower member 22 by welding or screw fastening. Make up the body.

  The evaporation chamber 20 is attached with a heater 9 for heating the inside of the evaporation chamber 20 to evaporate the chemical solution dropped into the evaporation chamber 20. The heater 9 is an electric resistance type 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 thereof, and a metal further covering the outer surface thereof. And a board.

  The heater 9 is disposed in close contact with the lower surface of the bottom surface 22a of the lower member 22 through the heat transfer member 26 made of a metal plate or the like having a good thermal conductivity, and is sandwiched between the fixing member 27 and the bottom surface 22a. It is fixed by screw fastening etc. The heat transfer member 26 functions as a spacer for filling a gap between the heater 9 and the bottom surface 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.

  In the evaporation chamber 20, a temperature sensor 18 for detecting a heating temperature by the heater 9 is attached. Specifically, the temperature sensor 18 is inserted from above into a through hole formed substantially at the center of the heater 9, and the vicinity of the tip is sandwiched between the bottom portion 22a of the lower member 22 and the heater 9 It is fixed to be in direct contact with the part 22a. As a result, the temperature in the vicinity of the bottom portion 22a which is a plate for heating the chemical solution can be accurately detected.

  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 the air flowing from the intake port 25 or the air around the evaporation chamber 20 As a result, there is a problem that the detected temperature is lowered. On the other hand, in the present invention, since the temperature sensor 18 is attached at substantially the center of the heater 9 and in contact with the bottom portion 22a serving as a heating plate, accurate temperature in the vicinity of the heating surface for heating the chemical solution is detected. be able to.

  Then, the control device 19 (see FIG. 2) controls the energization of the heater 9 so that the temperature of the bottom 22a of the evaporation chamber 20 detected by the temperature sensor 18 maintains a predetermined target temperature (for example, 320.degree. C.). . Thereby, the suitable evaporation of the chemical solution can be maintained.

  FIG. 5: is side surface sectional drawing of evaporation chamber 20 vicinity of the pest control apparatus 1, and has shown the AA line cross section shown in FIG. In FIG. 5, the air flow in the duct 10 is indicated by a solid arrow, the flow of the evaporated chemical solution is indicated by a broken arrow, and the air flow taken into the evaporation chamber 20 from the intake port 25 is schematically indicated by a dashed arrow. 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 in the front surface 2 a of the housing 2. On the other hand, at the back end of the lower member 22, a back part 22c which is continuously bent substantially vertically upward from the back end of the bottom part 22a is formed.

  Inside the evaporation chamber 20, the evaporation dish 21 which drips and evaporates a chemical | medical solution on the upper surface is detachably accommodated. The evaporation pan 21 has a substantially box shape, for example, formed by bending a stainless steel plate or an aluminum steel plate, and the bottom surface of the evaporation pan 21 is disposed in close contact with the bottom surface 22 a of the evaporation chamber 20.

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

  The partition member 11 defining the lower portion of the duct 10 and the upper member 23, which is the partition member defining the upper portion of the evaporation chamber 20, are disposed to be separated from each other by providing a predetermined gap (void 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 can suppress that the evaporation chamber 20 is cooled by the air which flows through the inside of the duct 10. As a result, efficient evaporation can be maintained, and generation of residual liquid chemical can be suppressed.

  In the vicinity of the front surface of the housing 2, the partition member 11 and the upper member 23 are close to each other. That is, the transpiration port 5 connected to the evaporation chamber 20 and opened on the front surface 2 a of the housing 2 is formed immediately below and adjacent to the blowout port 4 of the duct 10 for flowing the air sent out by the fan 12. 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 2 a of the pest control device 1 and shows a portion C shown in FIG. 5 in an enlarged manner. FIG. 7 is a perspective view of the vicinity of the blowout port 4 and the transpiration port 5 as viewed obliquely from the front and top. 6, the air flow in the duct 10 is schematically indicated by a solid arrow, the flow of the evaporated chemical solution is indicated by a broken arrow, and the air flow taken into the evaporation chamber 20 from the intake port 25 is schematically indicated by a dashed arrow.

  As shown in FIG. 6, in the vicinity of the outlet 4, the partition member 13 constituting the upper surface of the duct 10 and the partition member 11 constituting the lower surface are extended forward and the front surface 2 a of the housing 2 The surface of the recessed part of the) protrudes in front of the The front end 11a of the partition member 11 is bent substantially vertically downward, and the lower end is further folded inward (rear side).

  Here, at the boundary between the blowout port 4 and the transpiration port 5, the front end 11b of the partition member 11 is on substantially the same plane as the front surface 2a of the recessed portion of the housing 2 or inside the front surface 2a. It is formed to be at the same position as the front end 23 a of the upper member 23.

  As shown in part E of FIG. 7, the front end 11 a of the partition member 11 extending forward of 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 portion of the transpiration port 5. It is cut out in a substantially U-shape in top view (front end 11 b) so as to be inside the position or the front face 2 a. Thus, the chemical solution evaporated from the inside of the evaporation chamber 20 can be efficiently sucked and diffused by the flow of the air discharged from the blowout port 4.

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

  As shown in FIG. 8, the back surface portion 22 c which is continuously bent and erected from the bottom surface portion 22 a is formed lower than the left and right side surface portions 22 b (see FIG. 4). Thereby, an air inlet 25 which 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 by the air inlet 25.

  Thus, air can be taken into the evaporation chamber 20 from the intake port 25 by forming the intake port 25 above the back surface portion 22 c of the evaporation chamber 20. As a result, retention of the chemical solution evaporated inside the evaporation chamber 20 is suppressed, the chemical solution can be easily blown out from the transpiration port 5, and evaporation of the chemical solution can be promoted.

  Here, the intake port 25 may have an opening area smaller than that of the transpiration port 5, and a slight gap may be 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 22c and the upper member 23 is about 1 to 2 mm.

  Thus, a large amount of air can be prevented from flowing from the intake port 25 into the evaporation chamber 20, and the temperature decrease in the evaporation chamber 20 can be suppressed. Then, the inside of the evaporation chamber 20 can be maintained at a temperature suitable for evaporation. Further, the evaporated chemical solution is efficiently blown out from the transpiration port 5 without flowing back to the intake port 25.

  Further, by forming the intake port 25 in communication with the inside of the housing 2, the air around the evaporation chamber 20 warmed by the heat leaking from the heater 9 to the outside can be sucked into the evaporation chamber 20. it can. As a result, it is possible to suppress the temperature inside the evaporation chamber 20 from being lowered to maintain good evaporation, and to prevent the problem that the inside of the housing 2 is overheated.

  In the above embodiment, the air outlet 4 for discharging the air and the transpiration port 5 for discharging the evaporated chemical solution are formed on the front surface of the housing 2. However, the air outlet 4 and the transpiration opening are described. The position of 5 is not limited to this. The blowout port 4 and the transpiration port 5 may be formed on any one surface of the housing 2, for example, the blowout port 4 and the transpiration port 5 may be formed on the upper surface, the side surface, or the bottom surface of the housing 2. In this case, the air inlet 25 may be formed to open on the other surface which is a surface different from the surface on which the blowout port 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 scope of the present invention.

DESCRIPTION OF SYMBOLS 1 pest control device 2 case 4 air outlet 5 transpiration port 6 suction port 7 tank 8 pump 9 heater 10 duct 11 partition member 12 fan 15 air gap portion 20 evaporation chamber 21 evaporation plate 22 lower member 22 bottom surface portion 23 upper member 25 intake port

Claims (3)

A pest control device which drops a chemical solution into the interior of an evaporation chamber heated by a heater to evaporate it,
A duct for flowing the air delivered by the blower;
An outlet connected to the duct and opening on one side of the housing;
In the evaporation chamber, a transpiration port opened on one surface of the housing adjacent to the blowout port and an air intake port opened on the other surface or inside of the housing are formed.
The intake port, pest control device, wherein the opening area than the evaporation port does not lead to the duct is formed is small between the upper end and the upper member of the rear portion of the evaporation chamber.   The pest control device according to claim 1, wherein a gap is formed between the evaporation chamber and the duct, and a partition member defining each of the evaporation chamber and the duct. A tank for containing the chemical solution;
A pump for delivering a chemical solution from the tank and dropping it into the evaporation chamber;
A heater provided on the bottom of the evaporation chamber;
And an evaporation tray which is removably inserted into the evaporation chamber.
The pest control device according to claim 1, wherein the chemical solution is dropped onto the evaporation dish.

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