JP2003009748A - Apparatus for exterminating insect pest - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for exterminating insect pests, which reduces the number of parts such as fans, pressure adjustment means, etc., is compacted, miniaturized and prevents corrosion of an electronic circuit part, etc., due to leakage of evaporated mist into the inside of a box body while enhancing the maintainability of an evaporation means. SOLUTION: This apparatus for exterminating insect pests is equipped with a liquid chemical container 11 charged with a liquid chemical arranged in the box body 2, a pump 21 for sucking the liquid chemical in the liquid chemical container through a suction pipe 13 inserted through a stopper part 12 of the liquid chemical container, a valve part 15 arranged at a through hole 14 formed on the stopper part of the liquid chemical container, a duct 31 piped from the rear wall of the box body to a discharge opening installed at the upper part of the front wall, a fan 35 for open air inhalation arranged in a opening part at the rear end of the duct and an evaporation unit to be movably attached from an installation hole formed at the front wall part of the box body to the inside and the outside of the box body. A ventilation part 32 which communicates with the inside of the evaporation unit and introduces a part of introduced air from a fan to the evaporation unit is arranged at a proper place of the front of the duct.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a pest that can effectively control harmful insects such as cockroaches, flies, mosquitoes and ants that harm humans in kitchens, restaurants, offices, houses, warehouses and the like. Disinfestation device

[0002]

2. Description of the Related Art Various devices have been proposed in the past for spraying pesticides in the form of mist to disinfect pests that directly or indirectly harm humans and spray them in buildings or houses. There is. For example, in facilities such as kitchens where food is cooked and processed, restaurants, hotels, etc. where hygiene management is important, as well as in general offices, houses, etc., pests such as cockroaches and flies are exterminated due to the need for hygiene. Therefore, a method of exterminating the insecticide by spraying the pesticide in a closed room is implemented. In addition, when it is not possible to spray insecticides during business hours, such as when exterminating insects in restaurants and cafeterias, there is a limit of several hours until the employee comes to work after the business is closed. The disinfection must be completed within the time given. For this reason, various evaporation devices have been proposed in which the operating time can be set by a timer.

For example, in Japanese Unexamined Patent Publication No. 9-327257, a predetermined amount of an insecticidal chemical is sucked from a hermetically sealed medicine container by a pump and guided to a vaporization section, and is diffused to the vaporization section and heated by a heater while flowing down. There is disclosed a configuration in which a drug is evaporated inside a room by evaporation by heating and air blown by a fan, and a residue of the drug is accumulated in a recovery container. Since the specific gravity of the chemical is about 1.3 times that of water, it is easy to fall, and it is easy to fall into the collection container before it is evaporated. Therefore, in this conventional example, a plate-shaped gutter is arranged in a zigzag pattern for a long distance. I am trying to heat while moving. Also,
Prevent the occurrence of poor suction due to a decrease in the pressure inside the drug container as the drug inside the sealed drug container is sucked and discharged to the outside and decreases, or the internal pressure of the drug container due to an increase in ambient temperature. In order to prevent the medicine from leaking and the medicine leaking out, a shock absorber is installed side by side and housed in one cabinet. However, when the evaporation part including the gutter is heated by the heater, it is difficult to maintain the entire evaporation part at 100 to 120 ° C, which is suitable for the evaporation of the chemicals, and prevents evaporation failure due to temperature variation of the entire evaporation part. In order to do so, the heater is usually heated to about 170 to 180 ° C. For this reason, the chemical flowing in the gutter portion near the heater becomes overheated and scorched, and is easily carbonized, and the evaporation portion does not function immediately. In particular, the air blown from one fan is used both for the evaporation of the drug and the discharge of the evaporated drug to the outside of the device, but for the proper air flow required for evaporation and the discharge of the evaporated drug to the outside of the device. Since it does not match the required proper air flow rate, if the air flow rate from the fan is too strong, transpiration failure will occur due to the decrease of the heating temperature by the heater,
If the amount of blown air is too weak, there is a problem that the amount of chemical sprayed from the air outlet decreases. Further, since it is necessary to arrange a plurality of plate-shaped gutters in a zigzag pattern in the vertical direction, there is a problem that the structure of the evaporation portion becomes complicated and the size becomes large. Further, since the shock absorber having a relatively large capacity is housed in the same cabinet, there is a drawback that the cabinet becomes large. Furthermore, since the evaporation part and the inside of the cabinet outside the evaporation part are in communication with each other, the fan, the heater, and the electric circuit parts are corroded in the short term by the chemical agent which is a strong acid,
It has the drawback that the durability of the device itself is reduced.
In addition, since there is no disclosure about the cabinet opening / closing mechanism or the take-out mechanism such as the evaporation unit, which is necessary when cleaning the evaporation unit and the recovery container or when replacing parts, it is unclear how to perform maintenance. is there. Incidentally, the utility model registration No. 3037618 also discloses a configuration similar to the above, and has the same drawbacks as described above.

Next, Japanese Patent Laid-Open No. 11-56196 discloses a drug tank, a pump for sucking the drug, and a transpiration unit for evaporating the drug, which is equipped with a heating device, and evaporates the heating temperature of the transpiration unit. While keeping the mist residue at a temperature at which it does not carbonize, the vaporization unit is divided into two chambers, an upper chamber and a lower chamber, which open to the ejection port of the vaporized mist, and the upper chamber is used as an air flow creation chamber that scatters the vaporized mist to the outside. There is disclosed a configuration in which a vaporization chamber for vaporizing a drug from a drug tank is provided, and an air blower for forming separate air streams is provided in both chambers. In this conventional example, since a fan for blowing air to evaporate the medicine and a fan for scattering the generated evaporation mist from the ejection port to the outside are specially provided, the problems of the conventional example are solved. , The size of the fan is increased, the configuration is complicated, the cost is increased,
The problem occurs. Also, in this conventional example,
It is unclear how to perform maintenance because there is no disclosure about the opening / closing mechanism of the casing and the mechanism for moving the evaporation chamber in and out for cleaning and replacing the winding wire, residue absorption pad, etc. in the evaporation chamber. In particular, the evaporation chamber is kept airtight in order to prevent electronic components and other parts from being corroded by the evaporation mist mixed in the airflow creation chamber. No configuration is disclosed for access. That is, normally, by adopting a structure in which the evaporation chamber is smoothly moved in and out of the casing, the airtightness between the evaporation chamber and the air flow generation chamber is lowered, and the evaporation mist should be mixed. Also in this conventional example, since the means for adjusting the pressure in the medicine tank is specially arranged and arranged in the casing, the entire structure is enlarged.

Next, Japanese Patent Application Laid-Open No. 11-318307 includes a supply means including a container for containing a liquid insecticidal chemical, a chemical vaporizing means, and a heating means, and the vaporizing portion of the vaporizing means is a wire mesh. A turbo fan that is made of stainless steel curl wire and has a high thermal conductivity, and has a fin that is arranged between the turbo fan and the evaporation means. And a heater including the heater. This conventional example is an indirect evaporation method in which a heater is arranged between the evaporation means holding the chemical liquid and the fan, but since the evaporation means is heated and blown by one fan, it is disclosed in JP-A-9-327257.
As in the case of the publication, it is difficult to balance the power of the fan with the temperature control of the evaporation means, and it is usually necessary to set the heater temperature much higher than 120 ° C, which is ideal for evaporation. Carbonization of the drug is likely to occur.
For example, since the outside air temperature is different between summer and winter, it is difficult to set the fan power and the heater temperature, and transpiration failure is likely to occur. Also in this conventional example, since the means for adjusting the pressure in the medicine tank is specially arranged and arranged in the casing, the entire structure is enlarged. Furthermore,
In the above conventional evaporation device, since the residue absorption pad or the like that receives the residue of the medicine that has not been completely evaporated by the evaporation device is arranged below the evaporation device, the residue absorption pad that has reached the replacement time is replaced. Work is required. A structure suitable for exchanging the absorbent pad is not disclosed in any of the publications, but as a countermeasure against it, it is possible to construct a residue tray arranged at the lower part of the casing so that it can be freely withdrawn in and out of the casing. Conceivable. However, when the evaporation device is continuously operated, the highly viscous drug adheres to the inside of the casing, and the guide part on the casing side that guides the residue tray is fixed by the adhered drug, making it difficult to take in and out the tray. . In order to eliminate this inconvenience, it is necessary to sacrifice the airtightness and design so that a sufficient gap is formed between the casing guide portion and the guided portion of the tray. The airtightness between the casing and the inside of the casing is reduced, and the evaporated mist adheres to the electronic components inside the casing and causes a malfunction.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and reduces the number of parts such as a fan and a pressure adjusting means for simplification and downsizing while improving maintainability of the evaporation means. Another object of the present invention is to provide a pest control device that can prevent corrosion of electronic component circuits and the like due to leakage of evaporated mist into the housing. Also,
An object of the present invention is to provide a pest control device which can prevent the chemicals from being burnt due to overheating, and can realize the blowing of the vaporizing mist and the blowing of the vaporized mist by one fan.

[0007]

[Means for Solving the Problems] As described above, claim 1
According to the invention, the housing, the liquid agent container containing the liquid medicine disposed in the housing, the pump for sucking the liquid agent in the liquid agent container, and the ventilation opening provided at an appropriate place of the housing from the housing. A duct that is piped to the discharge opening provided on the front wall of the housing, a fan for sucking the outside air that is arranged on the side of the ventilation opening of the duct, and a mounting hole formed on the wall surface of the housing so that it can be freely taken in and out of the housing. And a ventilation unit that guides a part of the air introduced from the fan into the evaporation unit, and the evaporation unit has a casing that forms a closed space therein. A heater wire disposed in the casing, a liquid agent holding member surrounding the heater wire, a liquid agent receiving hole formed on an outer surface of the casing and receiving a liquid agent supply pipe extending from the pump, and guiding the liquid agent to the liquid agent holding member. Characterized in that and a liquid discharge pipe for discharging the transpiration were liquid at the inner casing located in the discharge in the opening. According to the invention of claim 2, the liquid agent is provided via the metal casing, the liquid medicine container containing the liquid medicine arranged in the casing, and the suction pipe inserted through the stopper of the liquid medicine container. A pump for sucking the liquid agent in the container, a valve section arranged in a through hole provided in the stopper section of the liquid agent container, and a ventilation opening provided in the rear wall of the housing and provided in the upper part of the front wall of the housing. A duct piped to the discharge opening, a fan for sucking outside air arranged in the rear end opening of the duct, and a mounting hole formed in a front wall portion of the housing located below the front end opening of the duct to a housing. A vaporization unit that can be installed in and out of the vaporization unit, and a ventilation part is provided at an appropriate position on the front surface of the duct to communicate with the interior of the vaporization unit and guide a part of the air introduced from the fan into the vaporization unit. The evaporation unit is provided between the duct and the front wall of the housing. A casing housed in the pace and forming a closed space inside, a heater wire disposed in the casing and a metal liquid agent holding member surrounding the heater wire, and a liquid agent formed on the outer surface of the casing and extending from the pump. A liquid agent receiving hole for receiving the supply pipe to guide the liquid agent to the liquid agent holding member, a liquid agent discharge pipe provided in the upper portion of the casing for discharging the liquid agent evaporated inside the casing, and provided outside the casing. It is characterized in that it is provided with a power supply connector inside the housing and a connector to be attached and detached. The invention of claim 3 is
The valve portion is composed of a check valve that opens when the air pressure in the liquid agent container decreases and introduces outside air, while blocking the liquid agent in the liquid agent container from leaking to the outside from the through hole. Characterize. The invention of claim 4 is characterized in that the valve portion is made of a sheet-like GORE-TEX stretched over the through hole. According to a fifth aspect of the present invention, the casing constituting the evaporation unit can be divided into an upper portion and a lower portion, the heater wire and the liquid agent holding member are arranged in the upper casing, and a liquid agent residue is kept in the lower casing. The absorbent pad is characterized by being arranged.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings. 1A and 1B are a front perspective view and a rear perspective view showing an external configuration of a pest control device according to an embodiment of the present invention, and FIG. 2 is a sectional perspective view showing an internal configuration, 3 is a perspective view showing a state in which a part of the housing is opened, FIG. 4 is an exploded perspective view of the evaporation unit, and FIGS. 5 (a) and 5 (b) are front vertical sectional views showing the internal structure.
FIG. 6A and FIG. 6B are a left side sectional view and a right side sectional view showing the internal structure. This pest control device 1 has a substantially cubic metal casing 2 made of a stainless steel plate, a liquid medicine container 11 that stores a liquid medicine arranged in the casing 2, and an upper opening of the liquid medicine container 11 is closed. A pump 21 for sucking the liquid medicine in the liquid medicine container through a liquid medicine suction pipe 13 penetrating the stopper portion 12 and a valve portion arranged to communicate with a through hole 14 provided in the stopper portion 12 of the liquid medicine container 11. 15, a duct 31 piped from a ventilation opening 16 provided in the rear wall 2B of the housing to a discharge opening 17 provided in the upper portion of the front wall 2F of the housing, and a rear end opening of the duct 31 (a ventilation opening 16). A fan 35 for sucking outside air arranged in 31B
A highly airtight evaporation unit 40 which is mounted in and out of the housing through a mounting hole 18 formed in the front wall portion of the housing located below the front end opening 31F of the duct, and the inside of the mounting hole 18. A guide rail (not shown) that slidably guides the evaporation unit 40, a handle 60 provided on the upper surface of the housing, and a display operation unit 61. A ventilation part 32, which communicates with the inside of the evaporation unit 40 and guides a part of the introduced air from the fan 35 into the evaporation unit 40, is provided at an appropriate position on the front surface of the duct 31. In addition, an electronic circuit (control unit) related to electrical control of the display operation unit 61, a pump motor, which will be described later, a fan 35, a heater wire, and the like is arranged in an appropriate place inside the housing 2, for example, a ceiling surface. There is. The opening 2a is configured to be openable / closable by a door 2b attached via a hinge 2c. Reference numeral 2d is a door 2b
It is a key that locks when closed. The housing 2 does not necessarily have to be made of metal, but is made of a material that has sufficient rigidity and that is resistant to corrosion in relation to the liquid agent used.

Through hole 1 provided in stopper 12 of liquid agent container 11
The valve portion 15 connected to 4 is opened when the air pressure in the liquid agent container 11 is lowered to introduce outside air into the container, while the liquid agent in the container is released when the internal pressure of the liquid agent container rises or falls. The check valve is configured to block leakage from the through hole 14 to the outside. Alternatively, the valve portion 15 has the through hole 14
It may be configured by a sheet-shaped GORE-TEX (registered trademark) stretched over. GORE-TEX does not allow liquid to pass through it, but it has sufficient air permeability, so
It is possible to prevent pressure fluctuation in the inside and prevent leakage of the liquid agent to the outside when the container falls. The valve portion 15 does not necessarily have to be provided on the stopper portion 12, and may be installed at any location as long as it is arranged at a position capable of exerting a function of adjusting pressure recording in the liquid agent container 11. The location where the liquid agent suction pipe 13 is attached is not limited to the plug portion 12, and may be anywhere, and the liquid agent suction pipe 13 is not an essential means for connecting the pump 21 and the liquid agent container 11. Further, in the illustrated example, the front end opening and the rear end opening of the duct 31 are opened on the rear wall and the front wall of the housing, respectively, but this is also only an example, and the front end opening and the rear end opening of the duct 31 are illustrated. May be opened on other wall surfaces of the housing.

The evaporation unit 40 is housed in a space S between the duct 31 and the front wall 2F of the housing and forms a closed space inside, a heater wire 42 arranged in the casing 41, and A metal liquid agent holding member 43 surrounding the heater wire, a liquid agent receiving hole 44 formed on the outer surface of the casing for receiving the liquid agent supply pipe 22 extending from the pump 21, and guiding the liquid agent to the liquid agent holding member 43, and a casing upper part (upper surface) ) Provided at the front end opening 31F of the duct
Liquid agent (mist) located inside and evaporated inside the casing
And a heater wire connector 46 that is provided outside the casing and that is attached to and detached from the power connector inside the housing. A casing 41 that constitutes the evaporation unit 40 can be divided into an upper casing 50 and a lower casing 51. A heater wire 42 and a liquid agent holding member 43 are arranged in the upper casing 50, and a liquid agent is contained in the lower casing 51. Pad 4 to absorb the residue of
7 are arranged. The peripheral edge of the lower opening portion of the upper casing 50 and the peripheral edge of the upper opening portion of the lower casing 51 are detachably fitted as shown in FIG. 4, and airtightness is ensured at the time of fitting. Further, the two casings 50 and 51 are locked so as not to be opened by the two locking means 52 in the fitted state. On the inner side surface of the upper casing, there is provided an introduction portion (hole) 53 into which the ventilation portion 32 provided on the front surface of the duct 31 is airtightly fitted and which introduces the outside air sucked by the fan into the evaporation unit 40. The formation position of the ventilation part 53 is not limited to the illustrated position as long as it can communicate with the inside of the casing 41.
The casing 41 includes a wide front plate 40F, and is fixed to the housing 2 by attaching and detaching the front plate 40F to and from the housing side with the fastening bolts 48. In the conventional pest control device, when the saucer containing the residue absorption pad is detachable from the housing, only the saucer is slidable through the hole provided in the housing,
It was necessary to sacrifice the airtightness between the tray and the guide portion on the housing side in order to smooth the sliding in and out while assuming that the viscous chemical liquid is fixed. Therefore, there is a possibility that the evaporation mist in the evaporation unit may leak into the housing and destroy the internal electronic circuit components. On the other hand, in the present embodiment, the heater wire, the medicine holding member, and the absorbent pad are housed in one casing having an airtight structure, the casing is configured to be detachable from the casing, and the casing is further divided into two. Since the maintenance such as cleaning is carried out, the conventional problems can be solved all at once. Therefore, the highly viscous chemical liquid does not adhere to the guide rail (not shown) that guides the evaporation unit 40 provided inside the mounting hole 18 and hinders the evaporation unit slide.

The medicine holding member 43 has a structure in which, for example, aluminum scraps cut into fine wires are molded into a required shape, has a higher thermal conductivity than stainless scraps, and enhances the evaporation efficiency of the held medicines. be able to. Further, the moisture retention property can be enhanced by mixing glass fiber as needed. It is not always necessary that all or part of the medicine holding member 43 is made of a metal material, and various kinds of materials can be selected according to the kind of medicine used and the like. By covering the outer periphery of the heater wire 42 with the medicine holding member 43, the heat generated from the heater wire 42 is transmitted with high responsiveness to the medicine held by the medicine holding member, and no charring occurs and no waste. It is possible to evaporate. Therefore, the heat generation temperature of the heater wire 42 is
It is possible to set the temperature suitable for evaporation (mist formation) of the drug to be used, for example, about 100 to 120 ° C., and it is possible to prevent burning due to overheating. Further, at the time of evaporation, the evaporation of the medicine is promoted by the outside air from the fan 35 introduced into the casing through the ventilation part 32 and the introduction part 53. Moreover, since the amount of air introduced into the casing through the ventilation part 32, which is a tubular body having a small diameter, is limited, the amount of air in the casing does not immediately increase even if the output of the fan is increased, and it is suddenly increased. There will be no significant temperature drop. That is, it is possible to appropriately adjust the air volume suitable for promoting transpiration and the air volume suitable for blowing from the opening 17 while using one fan. The mounting hole 18 for housing the evaporation unit 40
The formation position of is not limited to the front wall portion of the housing.

The pump 21 is, for example, a bellows pump 70.
The motor 71 rotates the eccentric cam 72 (not shown) whose peripheral surface is in contact with the bottom of the bellows pump 70 to repeatedly expand and contract to suck the liquid agent in the liquid agent container 11 from the suction tube 13. Then, the discharging operation of supplying the sucked liquid agent from the liquid agent supply pipe 22 to the liquid agent holding member 43 in the casing 41 is repeated. By adjusting the number of operations per hour and the operation time of the bellows pump 70, the amount of chemicals sent to the evaporation unit 40 is adjusted and the amount of evaporated mist is controlled. Further, a counter (not shown) of the bellows pump is provided on the operating shaft for cumulatively displaying the number of operations, and when the bellows pump is operated at a predetermined number of revolutions and the medicine container becomes empty,
A warning lamp provided on the display / operation unit 61 is turned on, and at the same time, the idling of the pump is stopped. In the display operation unit 61,
The operation switches for setting the timer are arranged. Each electric system component is configured to operate by electric power from a commercial power source by connecting a power cord (not shown) to an outlet such as a room. As the drug to be used, for example, organophosphorus DDVP is used. The liquid agent discharge pipe 45 is provided, for example, in the upper portion (upper surface) of the casing and is located inside the opening 31F of the duct. The liquid agent (mist) that evaporates inside the casing and is discharged from the liquid agent discharge pipe 45 is the duct 31. The air that is expelled forward from the opening 31F is efficiently discharged to the room by riding on the air. The bottom of the opening 31F of the duct is partially provided with a notch 31F 'so that it does not become an obstacle when positioning the liquid agent discharge pipe 45. The liquid agent discharge pipe 45
Need only be arranged in the discharge opening 17 (the opening of the duct) on the housing side, and need not necessarily be arranged on the upper surface of the casing.

In order to make the pest control device 1 having the above-mentioned structure operable, a drug container 1 filled with a drug is used.
After setting 1 at a predetermined position in the housing, a drug suction tube 13 extending from the pump 21 is attached to the stopper 12 of the drug container 11. On the other hand, the evaporation unit 40 is set in the housing through the mounting hole 18 formed in the front wall portion of the housing, and the fastening bolt 4
Tighten and fix 8. At this time, the ventilation part 32 projecting from the duct 31 is connected to the introduction part 53 on the evaporation unit 40 side so as to communicate therewith. Further, the liquid agent supply pipe 22 extending from the pump 21 is inserted into the liquid agent holding member 43, and the power supply connector 46 is connected to a power supply connector (not shown) in the housing 2. If necessary, the operation switch of the operation unit 61 is used to set the operation start time and end time. Operation part 6
When the power is turned on by the ON operation of the operation start switch provided in No. 1 or the timer operation, the heater wire generates heat to start preheating, and thereafter the motor 71 starts rotating and the fan 35 starts rotating. Start. When the motor 71 rotates to expand and contract the bellows pump 70, the medicine in the medicine container 11 is sucked from the medicine suction pipe 13 and is supplied from the medicine supply pipe 22 to the medicine holding member 43 in the evaporation unit 40. The medicine holding member 43 is the heater 4
Since the temperature has been raised to the required temperature by No. 2, the dripped drug immediately evaporates and becomes a mist. The air blown from the fan 35 travels through the duct 31 and is discharged from the front end opening 31F, but the chemical agent holding member 43 in the evaporation unit 40.
The chemical mist that has evaporated in the aeration section 32 and the introduction section 53.
Since it is discharged from the medicine discharge pipe 45 by the air blown from the fan 35 coming in from the mist, the mist from the medicine discharge pipe 45 is discharged from the opening 17 along with the exhaust air from the duct 31. Further, since the opening 17 is located at the upper part of the device, the loss of the evaporated mist is reduced.

Since the inside of the evaporation unit 40 has an airtight structure, the drug mist in the evaporation unit 40 does not leak out from other than the drug discharge pipe 45 during the operation of the extermination device, and even when the device is stopped. Upper and lower casing 5
It does not leak from the 0, 51 joint. Therefore, there is no possibility that the chemicals stay in the housing 2 and destroy the electric circuit parts and the like. For maintenance such as cleaning of the evaporation unit 40, the evaporation unit 40 is pulled out from the housing, the upper and lower casings are opened, and the medicine holding member 4 inside.
3 and the medicine absorption pad 47 can be easily cleaned and replaced. In the present invention, one fan is used to blow air for vaporization and blow for diffusion of vaporized mist, so that the number of parts can be reduced, and cost reduction and compactness can be achieved. it can. Also, because a simple check valve and a special fiber (filter) are used to prevent pressure fluctuations inside the drug container, there is no need to install a particularly large device for pressure adjustment, and it is made compact. It has become possible. Further, because of such a configuration, it is possible to reduce the height of the entire apparatus, and even if an earthquake occurs or when another object collides, it does not fall down and there is no risk of liquid leakage.

[0015]

As described above, according to the present invention, a fan,
It is possible to reduce the number of parts such as the pressure adjusting means for simplification and downsizing, and it is possible to prevent corrosion of electronic circuit parts etc. due to leakage of the evaporation mist into the housing while improving maintainability of the evaporation means. . Further, it is possible to realize the blowing of the vaporizing means and the blowing of the vaporized mist by one fan while preventing the chemicals from being burnt due to overheating.

[Brief description of drawings]

1A and 1B are a front perspective view and a rear perspective view showing an external configuration of a pest control device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional perspective view showing the internal configuration of the device of the present invention.

FIG. 3 is a perspective view showing a state in which a part of the housing is opened.

FIG. 4 is an exploded perspective view of a transpiration unit.

5A and 5B are a front vertical sectional view and a plan horizontal sectional view showing an internal configuration.

6A and 6B are a left side sectional view and a right side sectional view showing an internal configuration.

[Explanation of symbols]

1 pest control device, 2 metal housing, 11 liquid container,
12 stoppers, 13 liquid suction tube, 14 through holes, 15
Valve part, 16 ventilation opening, 17 discharge opening, 18 mounting hole,
22 liquid agent supply pipe, 31 duct, 31F front end opening, 31B rear end opening, 32 ventilation part, 35 fan, 40 evaporation unit, 41 casing, 42 heater wire, 43 liquid agent holding member, 44 liquid agent receiving hole, 4
5 liquid agent discharge pipe, 46 heater wire connector, 48 fastening bolts, 50 upper casing, 51 lower casing, 52 locking means, 53 introduction part, 70 bellows pump, 71 motor.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Masayuki Tsutsumi             2-1-1 Kotani, Samukawa-cho, Takaza-gun, Kanagawa Prefecture               Toyo Communication Equipment Co., Ltd. F term (reference) 2B121 AA13 AA14 AA16 AA17 CA04                       CA17 CA20 CA36 CA43 CA53                       CA69 CA79 CC02 CC31 EA01                       FA05

Claims (5)

[Claims] 1. A housing, and a liquid agent container containing a liquid medicine, which is arranged in the housing,
A pump for sucking the liquid agent in the liquid agent container, a duct piped from a ventilation opening provided at a proper position of the housing to a discharge opening provided on a front wall of the housing, and an outside air arranged on the ventilation opening side of the duct. A suction fan, and a transpiration unit that is mounted so as to be able to move in and out of the housing through a mounting hole formed in the wall surface of the housing, and the transpiration unit includes a part of the air introduced from the fan. A ventilation part is provided to lead into the evaporation unit, and the evaporation unit includes a casing that forms a closed space therein, a heater wire disposed in the casing, a liquid agent holding member that surrounds the heater wire, and an outer surface of the casing. A liquid agent receiving hole that receives a liquid agent supply pipe that is formed and extends from the pump and that guides the liquid agent to the liquid agent holding member, and a liquid agent discharge that discharges the liquid agent that has evaporated inside the casing and that is located inside the discharge opening. A pest control device comprising a pipe. 2. A metal casing, and a liquid agent container containing a liquid medicine disposed in the casing,
A pump for sucking the liquid agent in the liquid agent container through a suction tube inserted through the stopper of the liquid agent container, a valve section arranged in a through hole provided in the stopper section of the liquid agent container, and the casing. A duct piped from a ventilation opening provided on a rear wall of the body to a discharge opening provided on an upper portion of a front wall of the housing, a fan for sucking outside air arranged in a rear end opening of the duct, and a front end opening of the duct. A transpiration unit that can be inserted into and removed from the inside and outside of the casing through a mounting hole formed in the front wall portion of the casing located below the portion, and the front end of the duct communicates with the inside of the transpiration unit. A ventilation part is provided for guiding a part of the wind introduced from the fan into the evaporation unit, and the evaporation unit is housed in the space between the duct and the front wall of the housing and forms a closed space inside. A casing and arranged in the casing A heater wire and a liquid agent holding member made of metal surrounding the heater wire, a liquid agent receiving hole which is formed on the outer surface of the casing and receives the liquid agent supply pipe extending from the pump, and which guides the liquid agent to the liquid agent holding member, and a liquid agent receiving hole provided on the upper part of the casing. And a connector for discharging and discharging a liquid agent evaporated inside the casing, and a connector provided outside the casing for connecting to and disconnecting from a power supply connector inside the casing. apparatus. 3. The non-return valve, wherein the valve portion opens when air pressure in the liquid agent container decreases and introduces outside air, while blocking the liquid agent in the liquid agent container from leaking to the outside from the through hole. The pest control device according to claim 2, wherein the pest control device comprises a valve. 4. The pest control device according to claim 2, wherein the valve portion is made of GORE-TEX stretched over the through hole. 5. The casing constituting the evaporation unit can be divided into an upper portion and a lower portion, the heater wire and the liquid agent holding member are arranged in the upper casing, and a liquid agent residue is absorbed in the lower casing. The pest control device according to any one of claims 1 to 4, wherein an absorbent pad is arranged.