JPH0411172B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention is used for heating evaporation of mosquito-killing chemical solutions and other various chemical solutions used in heating transpiration.Various types of heating transpiration devices have been developed in the past, but indirect heating is performed using a suction wick. Most of them are not based on the method of indirect heating using a suction wick (for example, see Utility Model Publication No. 33-165, Publication of Utility Model Publication No. 46-22585, etc.), but most of them are The upper part of the container is simply an opening and does not have a lid or safety cover to cover the opening [for example, Japanese Patent Laid-Open No. 55-58047,
55-57502, etc.]. Those that do not rely on indirect heating of the wick have a fatal defect of poor drug transpiration, and those that do not have a lid have the disadvantage of lacking safety in use. In addition, some methods have been proposed in which the wick is indirectly heated and a lid or outer casing with an evaporation hole (ventilation hole) is provided at the top of the container [for example, Japanese Utility Model Publication No. 45-14913; 44-8361. However, in the insecticide described in the above-mentioned Utility Model Publication No. 44-8361, the support 2 and the insecticidal liquid container 6 block the gap 9 from the outside air.
Even if an outside air intake port is provided in the outer shell 1,
The effect of communication with the outside air through the gap 9 cannot be obtained. In addition, the insecticidal liquid diffuser described in Utility Model Publication No. 45-14913 is also
Since the insecticidal liquid storage container 6 blocks the gap from the outside air, even if an outside air intake port is provided in the outer shell 1, the effect of communicating with the outside air through the gap cannot be obtained. Furthermore, the devices described in these publications do not take into account the distance between the heater and the lid, or the positional relationship and size of the evaporation port attached to the lid with respect to the heater. The negative effects of the chemical adhering to the back side cannot be avoided, and in addition to the large chemical loss, the adhering chemical may condense and drip, contaminating the container, etc., and in some cases may cause a malfunction of the electric system of the electric heater. Shortcomings are also inevitable. The present invention eliminates all of the above-mentioned disadvantages found in conventional heating evaporation devices, and not only ensures safety of use, but also particularly reduces drug loss and provides excellent drug evaporation effects over a long period of time. The purpose of this invention is to provide a new device of this kind that can be stably and sustainably operated. The above object is to provide a liquid medicine container having a liquid absorbent wick, a container for storing the liquid medicine container, and a container for surrounding the upper part of the liquid absorbent wick of the liquid medicine container housed in the container with a gap in between. , an electric cylindrical heater provided in the container body, a top surface provided on the top of the container so as to cover above the heater, and a top surface provided on the top surface so as to open above the circumference. In the heating transpiration device, the heating evaporation device is equipped with: (a) an outside air intake in the vessel body for generating an ascending air flow from the space inside the vessel through the circumferential gap to the transpiration port, and (b) a connection between the transpiration port and the heater. This is achieved by a heating evaporation device characterized in that a distance of 0.5 to 2.5 cm is provided between them, and (c) the evaporation opening has an opening diameter that is approximately equal to or larger than the circumferential gap. An embodiment of the present invention will be described below based on the accompanying drawings. In the figure, 1 is a liquid medicine container equipped with a suction wick 1a, and 2 is a container made of synthetic resin for storing the liquid medicine container 1. The container 2 is, for example, an engaging stepped portion 2a.
It is divided into an upper part and a lower part, and has a screw-on bottom cover 2b on the bottom surface, and has a structure in which the drug solution container 1 in the container body 2 can be replaced as appropriate by removing the bottom cover 2b. It's summery. 3 is a circumferential gap 4 (see FIG. 4) around the upper end of the suction wick 1a of the drug solution container 1 housed in the container body 2.
The heater 3 is an electrically heated cylindrical heater provided at the center of the top surface of the vessel body 2 so as to surround the body. It is fixed in place by the application of means such as anchoring to a surface. Reference numeral 5 denotes a switch for turning on and off the heater 3, and the switch 5 may include a built-in light source that emits light while the heater 3 is being turned on. 6
is a connection cord, and the cord 6 can be stored, for example, in a storage chamber 7 formed on the outer periphery of the lower part of the container body 2, and wound and stored so as to be freely drawn out. The storage chamber 7 is rotatably connected downward from the lower end of the container body 2, and surrounds the outer periphery of the cylindrical portion 2c projecting downward from the bottom surface of the container body 2 at intervals. Upper case 7a with L-shaped cross section and cylindrical portion 2
The upper case 7a is formed from a lower case 7b that closes between the lower end of the upper case 7a and the lower end of the upper case 7a.
The engaging part 8 to the container body 2 and the engaging part 9 to the lower case 7b are used as sliding parts to rotate around the container body 2 as the connection cord 6 is stored and fed out. Reference numeral 10 indicates a leg portion projecting downward from the lower surface of the lower case 7b. The top surface 11 located at the top of the vessel body 2 has a heater 3
The safety cover 11 may be made of synthetic resin or the like and is fitted onto the upper end of the container body 2 so as to cover the upper part of the container body 2.
The evaporation port 12 has a diameter that is approximately equal to or slightly larger than the diameter of the evaporation port 12.
is equipped with a protection bar 13 to prevent the hands and fingers of children and the like from entering. Reference numeral 14 denotes a slit-shaped outside air intake port formed in the body of the container body 2, which functions as an intake port for air into the container body 2. Now, when the upper end of the suction wick 1a is heated by the heater 3 in the state shown in FIG.
It is radiated to the outside through the evaporation port 12 of the safety cover 11. On the other hand, due to the temperature rise due to heating by the heater 3, the outside air is brought into the slit-like outside air intake port 14 in the body of the vessel body 2.
It rises in the circumferential gap 4 while being more inhaled. Therefore, the chemical solution evaporated by the heating of the heater 3 is
Since it passes through the transpiration port 2 accompanied by the rising air rising within the circumferential gap 4, the circumferential gap 4 and the transpiration port 1
Coupled with the fact that the safety cover 2 is formed vertically to coincide with each other, it is extremely unlikely that the evaporated chemical solution will adhere to the inner surface of the safety cover 11 and be lost. The adhesion prevention effect of this transpiration chemical solution is achieved by the heater 3 and the safety cover 11.
If the distance is too large, it will tend to decrease, so it is desirable to keep this distance within about 2 cm, and it is usually set at a distance of about 0.5 to 2.5 cm, taking into consideration heat deterioration of the safety cover 11. . Since the device of the present invention is equipped with the safety cover 11, it can be used safely, and irrespective of the use of the safety cover 11, the evaporated chemical solution is less likely to adhere to the back surface of the safety cover 11, and the loss of the chemical solution can be substantially reduced. There are benefits that can be eliminated. Furthermore, if a large amount of evaporated chemical solution adheres to the back surface of the safety cover 11, it will condense and drip, contaminating the inside of the container or causing failures in the electrical system such as poor contacts, but the present invention can eliminate such problems. In the present invention, various chemicals conventionally used for exterminating pests can be used as the active ingredients of the medicinal solution, and examples thereof are as follows. Γ 3-allyl-2-methylcyclopent-2-
En-4-one-1-yl dl-cis/trans-chrysanthemate (generic name: allethrin; trade name: pinamine; manufactured by Sumitomo Chemical Co., Ltd., hereinafter referred to as pinamine) Γ 3-allyl-2-methylcyclopenta-2 −
En-4-one-1-yl d-cis/trans-chrysanthemate (trade name: Pinamine Fuorte: manufactured by Sumitomo Chemical Co., Ltd., hereinafter referred to as Pinamin Fuorte) Γ d-3-allyl-2-methylcyclopenta-
2-en-4-one-1-yl d-trans-chrysanthemate (trade name Exrin: manufactured by Sumitomo Chemical Co., Ltd., hereinafter referred to as Exrin) Γ 3-allyl-2-methylcyclopenta-2-
En-4-one-1-yl d-trans-chrysanthemate (generic name: bioallethrin, hereinafter referred to as bioallethrin) Γ N-(3,4,5,6-tetrahydrophthalimido)-methyl dl-cis/trans - chrysanthemate (generic name phthalthrin; brand name neopinamine; manufactured by Sumitomo Chemical Co., Ltd., hereinafter referred to as neopinamine) Γ 5-benzyl-3-furylmethyl d-cis/trans-chrysanthemate (generic name resmethrin; brand name Cris Lonfuorte: manufactured by Sumitomo Chemical Co., Ltd., hereinafter referred to as Crylonfuorte) Γ 5-(2-propargyl)-3-furylmethyl chrysanthemate (generic name: furamethrin, hereinafter referred to as furamethrin) Γ 3-phenoxybenzyl 2,2-dimethyl-3-(2',2'-dichloro)vinylcyclopropane carboxylate (generic name: permethrin; trade name: Exmin: manufactured by Sumitomo Chemical Co., Ltd., hereinafter referred to as Exmin) Γ 3-phenoxybenzyl d -cis/trans-chrysanthemate (generic name phenothrin:
Product name Sumitrin: Manufactured by Sumitomo Chemical Co., Ltd.
Γ α-cyanophenoxybenzyl isopropyl-4-chlorophenyl acetate (common name: Fuenvalerate; trade name: Sumicidin, manufactured by Sumitomo Chemical Co., Ltd., hereinafter referred to as Sumicidin) Γ d-3-allyl-2- Methylcyclopentane
2-enu-on-1-yl d-trans-
Chrysanthemate (trade name: Exlin, manufactured by Sumitomo Chemical Co., Ltd., hereinafter referred to as Exlin) Γ (S)-α-cyano-3-phenoxybenzyl (1R, cis)-3-(2,2-dichlorovinyl) -2,2-dimethylcyclopropanecarboxylate (hereinafter referred to as decamethrin) Γ (R,S)-α-cyano-3-phenoxybenzyl (1R,1S)-cis/trans-3-(2,
2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate (hereinafter referred to as Sanhermethrin) Γ α-cyano-3-phenoxybenzyl d-
Cis/trans-chrysanthemate (hereinafter referred to as sanphenotrin) Γ 1-ethynyl-2-methyl-2-pentenyl cis/trans-chrysanthemate Γ 1-ethynyl-2-methyl-2-pentenyl 2,2-dimethyl-3 -(2-Methyl-1-propenyl)cyclopropane-1-carboxylate Γ 1-ethynyl-2-methyl-2-pentenyl 2,2,3,3-tetramethylcyclopropanecarboxylate Γ 1-ethynyl-2- Methyl-2-pentenyl 2,2-dimethyl-3-(2,2-dichlorovinyl)cyclopropane-1-carboxylate Γ 2-Methyl-4-oxo-3-(2-propynyl)cyclopent-2-enyl- Chrysanthemate (generic name Prallethrin) Γ 0,0-dimethyl 0-(2,2-dichloro)
Vinyl phosphate (hereinafter referred to as DDVP) Γ o-isopropoxyphenyl Methyl carbamate (hereinafter referred to as bigon) Γ 0,0-dimethyl 0-(3-methyl-4-
nitrophenyl) thionophosphate (hereinafter referred to as sumithion) Γ 0,0-diethyl 0-2-isopropyl-
4-Methyl-pyrimidyl-(6)-thiophosphate (hereinafter referred to as diazinon) Γ 0,0-dimethyl S-(1,2-dicarboethoxyethyl)-dithiophosphate (hereinafter referred to as marathon) The present invention In this case, the temperature of the cylindrical heater 3 is suitably about 40° C. to 450° C., and is appropriately set within this temperature range depending on the transpiration properties of the chemicals used. Experimental examples using the heating evaporation device of the present invention will be given below. Experimental Example 1 The apparatus of the present invention and the comparative apparatus shown in the attached drawings using the following suction wick and cylindrical heater were used. Wicking wick: perlite/wood flour/starch = 60/
20/20 weight part Diameter 7 mm x length 72.5 mm Cylindrical heater: Inner diameter 10 mm x thickness 9 mm Evaporation port diameter: Shown in Table 1. Distance between heater and evaporation port: Shown in Table 1 In the chemical container 1 of each of the above devices, Penamine Fuorte was added to an aliphatic linear saturated hydrocarbon (carbon number 13 to 17).
50 ml of a drug solution dissolved at a concentration of 4% was added to the solution, the upper side of the wick 1a was heated to a temperature of 135°C, and the following test was conducted. (1) Measurement of the rate of attachment of active ingredients to the device 10 days (120 hours) and 30 days (360 hours) after the start of the experiment, wipe off the active ingredients attached to the inside and outside of the device and analyze. (2) Observation of dirt and deformation of equipment Visually inspect the parts of the equipment above the heater for dirt and deformation, and evaluate based on the following criteria. −…No dirt or deformation of the device is observed in appearance ±…Some components attached to the device can be visually confirmed, but no deformation of the device is observed +…Components attached to the device can be visually confirmed, and no deformation of the device is observed Slightly observed ++...Remarkable components adhering to the device and deformation of the device are observed (3) Insecticidal effect test Place the device in one corner of a 6-tatami room (2.7 x 3.6 x 2.5 m in height), and place the device on the diagonal line. In a 1.5 m high space in one corner, a net cage (30
cm cubic) is hung and set up, and the number of test insects suppressed is counted over time. Perform the same test twice. The results of each of the above tests are shown in Table 1 below.

【table】

[Table] From Table 1 above, in the device of the present invention, the diameter of the outside air intake, the diameter of the evaporation port, and the distance between the transpiration port and the heater affect the adhesion of the active ingredient to the device, the dirt/deformation state of the device, and the As shown in Inventions 1 to 11, if it has a significant influence on the insecticidal effect when using the device and is within the prescribed range of the present invention,
Good results are obtained. On the other hand, if any one of the three requirements of the outside air intake, the diameter of the evaporation port, and the distance between the evaporation port and the heater are missing, the adhesion rate will be too high, and the equipment will become dirty and deformed, as well as kill insects. It is clear that the efficacy is also reduced, making it unsuitable for practical use.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a front view thereof, Fig. 2 is a side view thereof, Fig. 3 is a plan view thereof, Fig. 4 is a longitudinal sectional view thereof, and Fig. 5 is a drug solution container. FIG. In the figure, 1 is a chemical container, 2 is a container body, 3 is a heater, 4 is a gap, 5 is a switch, 6 is a connection cord,
Reference numeral 7 designates a storage chamber, 8 a suspension part, 9 an engagement part, 10 a leg part, 11 a safety cover, 12 a transpiration port, 13 a protection bar, and 14 an outside air intake port.

Claims (1)

[Scope of Claims] 1. A liquid medicine container equipped with a liquid absorbent wick, a container body for storing the liquid medicine container, and a liquid medicine container with a circumferential gap around the upper part of the liquid absorption wick of the liquid medicine container stored in the container. An electric cylindrical heater provided in the container so as to surround it, a top surface provided at the top of the container to cover above the heater, and the top surface opened above the gap. In a heating transpiration device comprising: (a) an outside air intake in the vessel body for generating an upward airflow that leads from the space inside the vessel through the circumferential gap to the transpiration port, and (b) the transpiration port and the above-mentioned evaporation port. A heating evaporation device characterized in that: a distance of 0.5 to 2.5 cm is provided between the heater and the evaporation port;