CN116034974A - Quantitative spraying device for pest control - Google Patents
Quantitative spraying device for pest control Download PDFInfo
- Publication number
- CN116034974A CN116034974A CN202310269240.0A CN202310269240A CN116034974A CN 116034974 A CN116034974 A CN 116034974A CN 202310269240 A CN202310269240 A CN 202310269240A CN 116034974 A CN116034974 A CN 116034974A
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- CN
- China
- Prior art keywords
- pest control
- injection
- nozzle
- ejection
- quantitative
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0025—Mechanical sprayers
- A01M7/0032—Pressure sprayers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
- A01N25/06—Aerosols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Pest Control & Pesticides (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Insects & Arthropods (AREA)
- Agronomy & Crop Science (AREA)
- Dentistry (AREA)
- Toxicology (AREA)
- Plant Pathology (AREA)
- Mechanical Engineering (AREA)
- Catching Or Destruction (AREA)
- Nozzles (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The quantitative injection device (10) for pest control has an injection mechanism (15) provided with a nozzle (15) having a plurality of injection ports (37), and can perform quantitative injection of a pest control agent in a range of 0.5-2.0 mL for 1 injection. Further, in the ejection mechanism, a space around a central axis (Ax) of the nozzle is divided so that a value obtained by equally dividing 360 ° by the same number of divided spaces as the number of ejection openings is a size of a central angle around the axis, and a plurality of divided spaces are each made to have at least one Cluster (CL) of the pest control agent.
Description
The invention is a divisional application of patent application No. 2018800805280, application day 2018, 12, 11, and the invention name is quantitative spraying device for pest control.
Technical Field
The present invention relates to a quantitative spraying device for pest control, comprising: a pest control agent containing a pest control ingredient, a container containing the pest control agent, and a spraying mechanism for spraying a certain amount of the pest control agent from the container.
Background
Conventionally, aerosol spray devices (so-called aerosols) have been used for controlling pests and the like in a room. Such a spraying device is generally configured to contain an aerosol composition containing a stock solution containing a pest control ingredient and a propellant in a container, and to spray the aerosol composition from a nozzle provided in the container in accordance with a spraying operation by a user. For example, one of conventional aerosol spray devices is configured to spray an aerosol composition from a single spray port provided in a nozzle toward a space on the front side of the nozzle (for example, refer to patent document 1).
Prior art literature
Patent literature
Patent document 1: japanese patent application laid-open No. 2004-313939
Disclosure of Invention
Technical problem to be solved by the invention
The above-described conventional spray device directly sprays an aerosol composition to a pest to be controlled. On the other hand, in recent years, there has been proposed a spraying device for spraying an aerosol composition into a space where pest control is desired, so that fine particles or the like containing a pest control component remain in the space, or the aerosol composition adhering to a wall surface, floor or the like of the space is gradually discharged into the space, thereby always achieving pest control in the space. It is desired to further improve pest control effects on pest to be controlled, both of the former and latter.
An object of the present invention is to provide a quantitative spray device for pest control which has an excellent pest control effect on a pest to be controlled.
Means for solving the problems
[1] In accordance with the 1 st aspect of the present invention, a quantitative spraying device for pest control comprises:
a pest control agent containing a pest control ingredient; a container containing the pest control agent; and a spraying mechanism that sprays an amount of the pest control agent from the container,
the injection mechanism is configured to have an injection portion provided with a plurality of injection ports that inject the pest control agent and to be capable of quantitative injection in which 1 injection amount of the pest control agent injected from the plurality of injection ports is a certain amount in a range of 0.5 to 2.0mL,
the injection mechanism is configured to: a space centered on a straight line including a central axis of the ejection portion is divided into a plurality of divided spaces such that a value obtained by equally dividing 360 DEG by the same number of divided portions as the plurality of ejection openings is a magnitude of a central angle around the straight line, and each of the plurality of divided spaces is made to have at least one cluster of the pest control agent ejected from each of the plurality of ejection openings.
[2] With regard to the 2 nd aspect of the present invention, in the quantitative spraying device for pest control according to the 1 st aspect,
at least 1 opening of the plurality of ejection openings is configured to be inclined with respect to a plane orthogonal to the straight line.
[3] With respect to the 3 rd aspect of the present invention, in the quantitative spray device for pest control according to the 1 st or 2 nd aspect,
the ejection ports corresponding to at least 1 of the plurality of ejection ports are configured to be inclined with respect to a plane orthogonal to the straight line.
The inventors have conducted intensive studies on a quantitative spray device for pest control according to the above-mentioned aspect 1, and as a result, found that: with such a quantitative spraying device, if the amount of 1 shot of the pest control agent sprayed from the plurality of spraying ports is limited to a certain amount (for example, 1.0 mL) in the range of 0.5 to 2.0mL, and a space centered on a straight line including the central axis of the spraying portion (spraying button/nozzle, etc.) is divided into a plurality of divided spaces in such a manner that the number of divisions of 360 ° equally is the same as the number of the plurality of spraying ports, the value of which is the size of the central angle around the straight line, and clusters of at least one pest control agent are present in each of the plurality of divided spaces (refer to (a) of fig. 3 and (b) of fig. 3), a very excellent pest control effect can be obtained. Further, according to the quantitative spray device for pest control of the present structure, since a predetermined amount of the pest control agent is sprayed every time the user performs the spraying operation, a difference in pest control effect due to the operation method of the user is less likely to occur, and an excellent pest control effect can be stably exhibited.
Therefore, the quantitative spray device for pest control of the present structure is excellent in pest control effect on the pest to be controlled.
According to the quantitative injection device for pest control of the above-described aspect 2, at least 1 opening of the plurality of injection ports is configured to be inclined with respect to a plane orthogonal to a straight line including a central axis of the injection part, whereby clusters of pest control agent can be more reliably made to exist in the divided spaces corresponding to the injection ports. Further, the larger the number of ejection openings whose openings are inclined as described above, the more preferable is that the openings of all the ejection openings are inclined as described above.
According to the quantitative injection device for pest control of the above-described aspect 3, the injection port corresponding to at least 1 of the plurality of injection ports is inclined with respect to the plane orthogonal to the straight line including the central axis of the injection part, whereby clusters of pest control agent can be more reliably caused to exist in the divided space corresponding to the injection port. Further, the larger the number of ejection ports whose ejection ports are inclined as described above, the more preferable is that the openings of all the ejection ports are inclined as described above.
Effects of the invention
According to the present invention, a quantitative spray device for pest control having an excellent pest control effect on a pest to be controlled can be provided.
The present invention is briefly described above. Further, the mode for carrying out the invention (hereinafter referred to as "embodiment") described below will be explained in detail with reference to the drawings.
Drawings
Fig. 1 is an external view showing a main part of a quantitative spraying device for pest control according to an embodiment of the present invention.
Fig. 2 (a) to 2 (d) show the nozzle shown in fig. 1 in the case where the number of ejection openings is 4, fig. 2 (a) is a perspective view thereof, fig. 2 (b) is a front view thereof, fig. 2 (c) is a side view thereof, and fig. 2 (d) is a sectional view A-A of fig. 2 (b).
Fig. 3 (a) is a cross-sectional view corresponding to fig. 2 (d) showing a state of diffusion of clusters of the sprayed aerosol composition, and fig. 3 (b) is a front view showing a state of diffusion of clusters of the sprayed aerosol composition.
Fig. 4 is a diagram for explaining a relationship between the number of ejection openings and a state of diffusion of clusters of the ejected aerosol composition.
Fig. 5 (a) to 5 (d) are views of the nozzle corresponding to fig. 2 (a) to 2 (d) in the case where the number of ejection ports is 3.
Fig. 6 (a) to 6 (D) show a modification of the nozzle in the case where the number of ejection openings is 4, fig. 6 (a) is a perspective view thereof, fig. 6 (b) is a front view thereof, fig. 6 (C) is a C-C sectional view of fig. 6 (b), and fig. 6 (D) is a D-D sectional view of fig. 6 (b).
Symbol description
Quantitative spraying device for 10 pest control
11 container
12 valve rod (injection mechanism)
15 nozzle (injection mechanism)
16 actuator (injection mechanism)
37. Jet orifice
Ax straight line
Cluster of CL pest control agent
Detailed Description
< embodiment >
Hereinafter, a quantitative injection device 10 for pest control according to an embodiment of the present invention (hereinafter, simply referred to as "quantitative injection device 10") will be described with reference to the drawings.
(Structure of quantitative spraying device for pest control)
As shown in fig. 1, a quantitative injection device 10 according to an embodiment of the present invention includes: a container 11 in the shape of a hollow cylinder filled with an aerosol composition containing a pest control ingredient; a valve stem 12 which is provided so as to protrude upward along the axial direction of the container 11 near the center of the upper end portion of the container 11, and which ejects the aerosol composition from the container 11 by being pressed downward; and a sprayer cap 13 mounted on the upper end of the container 11. Further, as described later, the aerosol composition includes: a stock solution containing a pest control ingredient and a solvent; and (3) spraying agent.
The atomizer cap 13 includes: a lid 14 fitted to the upper end of the container 11; and an actuator 16 provided with a nozzle 15 connected to the valve stem 12 in communication therewith, supported swingably by the cover 14, and engaged from above the valve stem 12. The nozzle 15 is accommodated and fixed in a nozzle accommodation chamber 19 provided in the actuator 16. The actuator 16 swings freely via a hinge 17 extending from the front portion of the tip end side of the nozzle 15.
The lid 14 of the sprayer cap 13 is made of synthetic resin, for example, and its lower end is locked to a mounting cup 18 provided at the upper end of the container 11. A green package 20 is integrally formed on the upper portion of the actuator 16 to cover the actuator 16.
The actuator 16 has: a flow path 21 extending along a protruding direction (up-down direction: an axial direction of the container 11) of the valve stem 12; and a flow path 22 communicating with the flow path 21 and extending orthogonal to the flow path 21. The flow path 22 is connected in communication with the nozzle accommodating chamber 19 accommodating the nozzle 15.
The valve stem 12 is slidably assembled in the up-down direction with respect to a housing (not shown) assembled to the mounting cup 18, and is always biased upward by a biasing force of a spring (not shown) interposed between the valve stem 12 and the housing. In a state where the actuator 16 (in other words, the valve stem 12) is not depressed, a valve hole (not shown) in the valve stem 12 is sealed with stem rubber (not shown) by the urging force of a spring. As a result, a storage chamber (not shown) of the housing, which is connected to the interior of the container 11 in a communicating manner, and an in-stem passage (not shown) extending in the up-down direction in the valve stem 12, which is connected to the flow path 21 of the actuator 16 in a communicating manner, are not in a communicating state.
When the actuator 16 (valve stem 12) is depressed (i.e., if an injection operation is performed), the valve bore of the valve stem 12 is unseated from the stem rubber and the reservoir of the housing communicates with the stem passageway. As a result, the aerosol composition filled in the housing storage chamber is supplied to the flow path 31 and the ejection port 37 of the nozzle 15 via the in-rod passage, the flow path 21, and the flow path 22 (see fig. 2 (a) to 2 (d), and the like), and the aerosol composition is ejected from the ejection port 37. When the aerosol composition is sprayed, the aerosol composition in the form of fine particles forms clusters CL (aggregates) by the action of the spraying agent, and spreads from the spraying port 37 to the front side of the nozzle 15 (see fig. 3 a and 3 b).
In the present embodiment, the volume (shape) of the storage chamber of the case is designed so that the total amount of the aerosol composition injected from the plurality of injection ports 37 is a predetermined amount in the range of 0.5 to 2.0mL by 1 injection operation. That is, the quantitative ejection device 10 is a so-called "quantitative ejection type" aerosol ejection device. Here, the stem 12, the nozzle 15, and the actuator 16 correspond to the "injection mechanism" of the present invention, and the nozzle 15 corresponds to the "injection portion" of the present invention.
The total amount of the aerosol composition ejected from the plurality of ejection ports 37 may be a value in the range of 0.5 to 2.0mL by 1 ejection operation, and for example, a value in the range of 0.7 to 1.5mL is preferable, a value in the range of 0.9 to 1.3mL is more preferable, and 1mL is even more preferable.
As shown in fig. 2 (a) to 2 (d), the resin nozzle 15 has a stepped cylindrical shape in which a flow path 31 is formed. The side shape of the nozzle 15 corresponds to the side shape of the nozzle housing chamber 19 provided in the actuator 16, and in this embodiment, the nozzle housing chamber includes: a large diameter portion 32 on the tip end side of the nozzle 15; and a small diameter portion 33 on the base end side. An annular locking portion 34 for preventing the nozzle 15 from coming out (coming off) from the nozzle housing chamber 19 is provided at a predetermined position in the axial direction on the outer peripheral surface of the small diameter portion 33 so as to protrude radially outward.
The flow path 31 extends from the base end of the nozzle 15 to the vicinity of the tip end along a straight line Ax including the central axis of the nozzle 15. In a state where the nozzle 15 is accommodated in the nozzle accommodating chamber 19, the base end side opening of the flow path 31 is connected in communication with the flow path 22 in the actuator 16.
The tip side surface of the nozzle 15 is composed of a circular orthogonal surface 35 orthogonal to the straight line Ax, and a conical surface 36 extending obliquely to the straight line Ax from the outer peripheral edge of the orthogonal surface 35 toward the radial outside and toward the base end side. A plurality of (4 in this example) injection ports 37 are formed in the conical surface 36. The plurality of injection ports 37 are arranged at circumferentially spaced intervals (in this example, at intervals of 90 °) around the straight line Ax, extend along the straight line Ax, and are connected to the flow path 31 at the injection ports 37a in a communicating manner (see fig. 2 (d)).
Since the plurality of injection ports 37 are formed on the conical surface 36, the openings 37b of the plurality of injection ports 37 are inclined radially outward from the straight line Ax along the conical surface 36 and the base ends thereof are inclined (refer to fig. 2 (d)). In other words, the openings 37b of the plurality of injection ports 37 are configured to be inclined with respect to a plane orthogonal to the straight line Ax. Therefore, as shown in fig. 3 (a), when the aerosol composition (see white arrow in the drawing) after passing through the flow path 31 passes through the nozzle 37a and is ejected from the opening 37b after passing through the plurality of nozzle 37, clusters CL of the aerosol composition spread from each of the plurality of nozzle 37 in a state of being inclined toward the radially outer side.
The injection port 37 represents a space portion connecting the flow path 31 inside the nozzle 15 and the outside of the nozzle 15. In addition, the nozzle 37a represents an opening portion of the nozzle 37 on the innermost side of the nozzle 15 (i.e., the flow path 31 side), and the opening 37b represents an opening portion of the nozzle 37 on the outermost side of the nozzle 15.
Further, in the present embodiment, as shown in fig. 3 (b), the cluster CL of the aerosol composition ejected and diffused from each of the 4 ejection openings 37 exists in each of 4 divided spaces obtained by dividing the space on the front side of the nozzle 15 by the dividing line L passing through the intermediate point of the ejection opening 37 adjacent in the circumferential direction. The width of each divided space (the magnitude of the center angle θ) is 90 °. In other words, the nozzle 15 is configured to: the space centered on the straight line Ax is divided into a plurality of divided spaces (spaces partitioned by the dividing line L) so that the value obtained by equally dividing 360 ° by the same number of divided (=4) as the plurality of injection ports 37 is the magnitude of the center angle θ around the straight line, and at least one cluster CL of the aerosol composition injected from each of the plurality of injection ports 37 is present in each of the plurality of divided spaces.
Then, in the present embodiment, the number of the ejection openings 37 is 4, and therefore the number of the divided spaces is 4, and the width (center angle) of each divided space is 90 °. However, the number of the ejection openings 37 is not limited to 4, and there is no particular limitation as long as clusters CL of the aerosol composition diffused from each of the plurality of (2 or more) ejection openings 37 exist in each of the divided spaces divided by the same number of divisions as the plurality of ejection openings 37 around the straight line Ax. For example, as shown in fig. 4, the number of divided spaces and the width (center angle) of each divided space can be set according to the number of ejection openings 37 (2 or more).
For example, in the case where the number of the injection ports 37 is 3, as shown in fig. 5 (a) to 5 (d) corresponding to fig. 2 (a) to 2 (d), the 3 injection ports 37 formed in the conical surface 36 are arranged at intervals (in this example, every 120 °) in the circumferential direction around the straight line Ax. In this case, as shown in fig. 4, the number of divided spaces is 3, and the width (center angle) of each divided space is 120 °.
In the examples shown in fig. 2 (a) to 2 (d) and fig. 5 (a) to 5 (d), the openings 37b of the plurality of injection ports 37 are inclined radially outward from the straight line Ax along the conical surface 36, so that clusters CL of the aerosol composition tend to spread obliquely radially outward. As shown in fig. 2 (d) and 5 (d), the nozzle 37a of the plurality of nozzles 37 is not particularly inclined with respect to the plane orthogonal to the straight line Ax in these examples.
On the other hand, as an example different from the examples shown in fig. 2 (a) to fig. 2 (d) and fig. 5 (a) to fig. 5 (d), as shown in fig. 6 (a) to fig. 6 (d), a plurality of ejection openings 37 may be formed by grooves 41 and 42 extending radially outward, so that clusters CL of the aerosol composition are easily spread obliquely outward in the radial direction.
Specifically, the nozzle 15 shown in fig. 6 (a) to 6 (d) has a stepped cylindrical shape in which a small diameter portion 38 is formed on the front end side of the large diameter portion 32 located on the front end side of the small diameter portion 33. The front end side surface of the small diameter portion 38 is constituted only by a circular orthogonal surface 39 orthogonal to the straight line Ax. As shown in fig. 6 (c) and 6 (d), in particular, the flow path 31 of the nozzle 15 extends continuously from the large diameter portion 32 to the vicinity of the tip end of the small diameter portion 38.
A pair of grooves 41 extending in the up-down direction and a pair of grooves 42 extending in the left-right direction are formed in the orthogonal surface 39. The grooves 41, 42 extend radially from radially inner ends equidistant from the straight line Ax to the outer periphery of the orthogonal surface 39, and form the injection port 37. The injection port 37 communicates with the flow path 31 at an injection port 37a located at the radially inner end portions of the grooves 41, 42. That is, each of the grooves 41 and 42 extends radially outward from the corresponding nozzle 37a and opens at the radially outer end.
Further, as shown in fig. 6 (c), the bottom surfaces 41a of the pair of grooves 41 extend from the spout 37a in a direction orthogonal to the straight line Ax (i.e., in the radial direction). On the other hand, as shown in fig. 6 (d), the bottom surfaces 42a of the pair of grooves 42 extend from the nozzle 37a radially outward and toward the base end side obliquely with respect to the straight line Ax.
As shown in fig. 6 (d), in particular, the ejection opening 37a is inclined with respect to the plane orthogonal to the straight line Ax, so that the aerosol composition passing through the ejection opening 37a is guided by the groove 42 and ejected from the ejection opening 37, and clusters CL of the aerosol composition are easily spread while being inclined outward in the radial direction.
However, in the mode of the nozzle 15 shown in any one of fig. 2 (a) to 2 (d), fig. 5 (a) to 5 (d) and fig. 6 (a) to 6 (d), the ejection pressure of the aerosol composition at a position 20cm away from the ejection port 37 is preferably 0.1 to 20gf, more preferably 0.3 to 10gf, and even more preferably 0.5 to 5gf. The injection pressure can be measured as follows: the aerosol composition was injected toward the center of a circular flat plate of 60mm phi mounted on a digital dynamometer (model: DS2-2N, IMADA, co., ltd.) which was placed at a distance of 20cm from the injection port 37 of the quantitative injection device 10 at room temperature, and the maximum detected value at this time was used as an injection load, and the average value of the injection load was calculated to measure the injection pressure.
Further, from the viewpoint of setting the ejection time to a value within a desired range, the total opening area of the openings 37b of the ejection openings 37 is preferably 0.05 to 8mm 2 More preferably 0.2 to 4.0mm 2 More preferably 0.4 to 3.0mm 2 . From the viewpoint of setting the injection time to a value within a desired range, the total opening area of the nozzle 37a (liquid injection portion) shown in fig. 2 (d), 5 (d), 6 (c) and 6 (d) is preferably 0.05 to 8mm 2 More preferably 0.2 to 3.0mm 2 More preferably 0.4 to 2.5mm 2 。
Further, the injection time based on 1 injection operation is preferably within 0.8 seconds, more preferably 0.2 to 0.7 seconds, and still more preferably 0.3 to 0.7 seconds. It is considered that by adopting such a spraying time, the volatility of the pest control ingredient is efficiently improved, and the persistence of the efficacy of the pest control ingredient is improved. As a method for adjusting the injection time of 1 injection operation, for example, there may be mentioned: a method of adjusting the inner diameter of the injection port 37, a method of adjusting the injection pressure, and the like.
The aerosol composition filled in the container 11 comprises: a stock solution containing a pest control ingredient and a solvent; and (3) spraying agent.
The pest control component can kill, repel, knock down and the like the object pests. The type of pest control ingredient is not particularly limited, and known compounds can be used.
For example, as pest control ingredients, there may be mentioned: pyrethroid compounds such as transfluthrin, fenpropathrin, permethrin, pyrethrin, allyl pyrethrin, tetramethrin, bifenthrin, furan pyrethrin, enepropathrin, propathrin, cyhalothrin, cypermethrin, deltamethrin, tefluthrin, profluthrin, bifenthrin, etc.; silicon compounds such as silafluofen; organic phosphorus compounds such as cartap, dichlorvos, chlorpyrifos methyl, diazinon and phoxim; carbanilates such as carbanilate, carbanilate and carbanilate; oxadiazole compounds such as oxazinone; compounds such as methoprene, pyriproxyfen, fipronil and sulfametofen; various essential oil components such as peppermint oil, orange oil, fennel oil, cinnamon oil, clove oil, turpentine, eucalyptus oil, joba oil, jasmine oil, orange flower oil, peppermint essential oil, bergamot oil, orange leaf oil, lemon grass oil, cinnamon oil, citronella oil, geranium oil, citral, L-menthol, citronellyl acetate, cinnamaldehyde, terpineol, nonanol, cis-jasmone, limonene, linalool, 1, 8-eucalyptol, geraniol, α -pinene, p-menthyl-3, 8-diol, eugenol, menthyl acetate, thymol, benzyl benzoate, dipropylene glycol monobutyl ether, dipropylene glycol dimethyl ether, ethylene glycol monoisobutyl ether, diethylene glycol dibutyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, and the like; dibasic acid esters such as dibutyl adipate, and the like. These may be used alone or in combination of 1 or more than 2.
The pest control ingredient may be appropriately selected according to the kind of the target pest. Examples of the target pest include: mosquitoes, flies, moths, bees, stink bugs, cockroaches, ants, spiders, hygroworms, mites, lice, centipedes, beetles, huckles, spiders, tabanus, black flies, butterfly flies, termites, midge, leafhoppers, bark beetles, bed bugs, earwigs, slugs, longhornworms, bark beetles, rodents, moths and common moths. For flying insects such as mosquitoes, flies, moths, bees, tabanus, black flies, midge, leafhoppers, butterfly flies, clothes moths, and general clothes moths, transfluthrin, bifenthrin, allethrin, prallethrin, perfluthrin, and fenpropathrin are preferable. In addition, for crawling pests such as cockroaches, stink bugs, ants, spiders, hygroworms, mites, lice, centipedes, beetles, huperzia, spiders, termites, bark beetles, bed bugs, wigs, slugs, and the like, tetramethrin, propargyl pyrethrin, permethrin, and the like are preferable.
The content of the pest control ingredient is preferably 0.01 to 70 mass/volume% in the stock solution. When the content of the pest control ingredient in the stock solution is 0.01 mass/volume% or more, a sufficient effect of the pest control ingredient can be obtained, and when the content is 70 mass/volume% or less, the production adaptability is good. The content of the pest control ingredient is more preferably 0.1 mass/volume% or more, still more preferably 0.3 mass/volume% or more, still more preferably 65 mass/volume% or less, still more preferably 50 mass/volume% or less.
The stock solution may contain a solvent for the purposes of adjusting the viscosity of the stock solution, optimizing production adaptability, improving the permeability of the chemical to pests, and the like. Examples of such solvents include: hydrocarbon solvents, alcohol solvents, aromatic solvents, water, ester solvents, and the like. Examples of the hydrocarbon solvent include: the aliphatic and alicyclic hydrocarbons such as paraffinic hydrocarbon and naphthenic hydrocarbon are preferably lamp oils such as JIS No. 1 lamp oil. Specifically, there may be mentioned: normal paraffins and isoparaffins, and the like. The normal paraffins are represented by normal paraffins having 8 to 16 carbon atoms, and examples thereof include: new thiazoles manufactured by Central chemical Co., ltd., NORMAL PARAFFINE MA manufactured by JXTG Nippon Oil & Energy Corporation, alcanec14-C17, and the like. Examples of isoparaffins include isoparaffins having 8 to 16 carbon atoms: IP CLEAN LX, IP CLEAN HX, SUPASOL FP25, isoper-M, isoper-H, isoper-E, isoper-L, etc. manufactured by Ningsu Co., ltd. Examples of the alcohol-based solvent include: lower alcohols such as ethanol and propanol, and polyhydric alcohols such as glycerin and ethylene glycol. Examples of the aromatic solvent include: toluene, xylene, and the like. Examples of the ester solvent include: isopropyl myristate, butyl myristate, hexyl laurate, isopropyl palmitate, and the like.
The content of the solvent is preferably 30 to 99.99 mass/volume% in the stock solution. The solvent is preferably used in an amount of 30 mass/volume% or more in the stock solution, whereby the production suitability can be optimized, and if the solvent is 99.9 mass/volume% or less, the sufficient efficacy can be ensured. The content of the solvent is more preferably 35 mass/volume% or more, still more preferably 50 mass/volume% or more, still more preferably 99.9 mass/volume% or less, still more preferably 99.5 mass/volume% or less.
The stock solution may contain other components within a range that does not impair the effects of the present invention. Examples of the other components include: preservative, pH regulator, ultraviolet absorbent, deodorant, perfume, bactericide, mildew inhibitor, antistatic agent, defoamer, synergist, inorganic powder, surfactant, dissolution assistant, etc.
The content of the stock solution may be appropriately changed depending on the purpose of use of the quantitative spraying device 10 and the combination of the spraying agent, and is not particularly limited, and may be 1 to 50% by volume in the aerosol composition, for example. When the content of the raw liquid in the aerosol composition is 1% by volume or more, a sufficient effect of the pest control ingredient can be obtained, and when the content is 50% by volume or less, contamination by the raw liquid can be reduced. The content of the stock solution in the aerosol composition is more preferably 3% by volume or more, still more preferably 5% by volume or more, and still more preferably 40% by volume or less, still more preferably 30% by volume or less.
The propellant is a medium for spraying the stock solution, and is filled in the pressure-resistant container together with the stock solution under pressure. Examples of the propellant include 1 or more than 2 kinds of Liquefied Petroleum Gas (LPG) such as propane, propylene, n-butane and isobutane, liquefied gas such as dimethyl ether (DME), compressed gas such as carbon dioxide gas, nitrogen gas and compressed air, and halocarbon gas such as HFC-152a, HFC-134a, HFO-1234yf and HFO-1234 ze. The propellant to be used may be appropriately selected depending on the compatibility with the stock solution and the container member of the sprayer valve.
The content of the propellant may be appropriately changed depending on the purpose of use of the quantitative-jetting aerosol and the combination with the stock solution, and is not particularly limited, and may be set to 50 to 99% by volume in the aerosol composition, for example. If the propellant is 50% by volume or more in the aerosol composition, the aerosol composition can be sprayed with fine spray particles, so that the pest control ingredient is more likely to spread and the efficacy of the pest control ingredient is more likely to be sustained. In addition, if the amount of the propellant is 99% by volume or less, a sufficient effect of the pest control ingredient can be obtained. The content of the propellant in the aerosol composition is more preferably 60% by volume or more, still more preferably 70% by volume or more, and still more preferably 97% by volume or less, still more preferably 95% by volume or less.
Furthermore, the volume ratio of the stock solution to the propellant in the aerosol composition is preferably 1:99 to 50:50, more preferably 3:97 to 40:60. By setting the volume ratio as described above, a sufficient pest control effect can be obtained.
(evaluation of pest control by quantitative spraying device)
The inventors found through various experiments that: as shown in the various embodiments described above, in the quantitative spray device 10, the plurality of spray openings 37 are provided in the spray nozzle 15, and the space centered on the straight line Ax is divided around the straight line Ax by the same number of divisions as the plurality of spray openings 37, so that at least one cluster CL of the aerosol composition sprayed from each of the plurality of spray openings 37 is present in each of the obtained divided spaces (see fig. 3 (a) and 3 (b)), and further, the total amount of the pest control components sprayed from the plurality of spray openings 37 in each of 1 spray is set to a certain amount (for example, 1.0 mL) in the range of 0.5 to 2.0mL, whereby a very excellent pest control effect can be obtained as compared with the above-described conventional spray device. The following will explain the test examples.
The pest control ingredients, solvents and propellants were contained according to the formulations shown in table 1 below, and aerosol compositions 1 to 5 were prepared. Hereinafter, the aerosol composition may be referred to as "composition". The specific gravity of each of the compounds was 1.388 (23 ℃), ethanol was 0.785 (25 ℃), isopropyl alcohol was 0.786 (20 ℃), and Liquefied Petroleum Gas (LPG) was 0.56 (20 ℃).
[ Table 1]
For each of the compositions 1 to 6 shown in Table 1, a stock solution, which is a mixture of the pest control ingredient and the solvent, was filled into pressure-resistant cans for spray (compositions 1, 4, 5: capacity 142mL; composition 2: capacity 59mL; composition 3: capacity 287mL; and composition 6: capacity 142 mL), and the pressure-resistant cans were closed with a sprayer valve (valve Stem (ST) having a bore diameter of 1.0 mm. Times.0.7 mm). Next, liquefied petroleum gas (0.34 MPa (25 ℃ C.) was filled under pressure as an injection agent. Further, as shown in tables 2 and 3 below, the knockdown rates of the test insects in various combinations (examples 1 to 5, comparative examples 1 to 9) were measured for the structure of the nozzle attached to the pressure-resistant tank, the amount of the composition sprayed in each 1 spray (1 spray amount), and the amount of the pest control ingredient contained in the sprayed composition.
Specifically, with respect to the "structure of the nozzle" in tables 2 to 4, the "X-shape" in the structure of the nozzle indicates a nozzle having 4 ejection openings such as those shown in fig. 2 (a) to 2 (d) and fig. 6 (a) to 6 (d), the "3-hole-type" indicates a nozzle having 3 ejection openings such as those shown in fig. 5 (a) to 5 (d), the "straight-line" indicates a nozzle (not shown) having a single ejection opening that opens in a direction along a straight line of the nozzle, and the "horizontal-type" indicates a nozzle (not shown) having a groove extending in a right-and-left direction at a front end surface orthogonal to the straight line of the nozzle and having a single ejection opening at a bottom surface of the groove. The total opening area of the openings 37b of the "X-shaped" nozzle was 2.3mm 2 The total opening area of the openings 37b of the "3-hole type" nozzle was 2.7mm 2 The total opening area of the openings 37b of the "horizontal" nozzle was 0.5mm 2 The total opening area of the openings 37b of the "straight" nozzle was 2.54mm 2 。
For the "knockdown rate" of table 2 below, aerosol compositions were sprayed under the conditions of examples 1 to 3 and comparative examples 1 to 7 at the indoor center of a laboratory (length 5.4m×width 3.6m×height 2.4 m), and culex tired female adults (about 100) as test insects were put into the laboratory at a timing of 3 hours after spraying. Then, the knockdown number (KD number) after 60 minutes was measured, and the knockdown rate (=kd number/total test insect number×100) was calculated.
[ Table 2]
For the "knockdown rate" in table 3 below, aerosol compositions were sprayed under the conditions of example 4 and comparative example 8 at the center of the room in the same laboratory as in table 2, and housefly adults (male and female mixed. About.100) as test insects were discharged into the laboratory at the time point when 4 hours had elapsed after the spraying. Then, the knockdown number (KD number) after 30 minutes was measured, and the knockdown rate (=kd number/total test insect number×100) was calculated.
[ Table 3]
For the "knockdown rate" of table 4 below, aerosol compositions were sprayed under the conditions of each of example 5 and comparative example 9 at the indoor center of the same laboratory as in table 2, and culex tired adults (about 100) as test insects were allowed to grow into the laboratory at a time point when 6 hours passed after the spraying. Then, the knockdown number (KD number) after 60 minutes was measured, and the knockdown rate (=kd number/total test insect number×100) was calculated.
[ Table 4 ]
From the comparison of examples 1 to 5 and comparative examples 1 to 9 shown in tables 2 to 4, it is clear that: the aerosol composition is injected from the plurality of injection ports 37 provided in the nozzle 15 so that the clusters CL are present in the divided spaces, regardless of the types of the pest control components and the amount of the aerosol composition injected from the plurality of injection ports 37 per 1 injection, and the total amount of the aerosol composition injected from the plurality of injection ports 37 per 1 injection is set to a certain amount (1.0 mL in the above example) in the range of 0.5 to 2.0mL, whereby a very excellent pest control effect can be obtained.
< other modes >
The present invention is not limited to the above embodiments, and various modifications can be adopted within the scope of the present invention. For example, the present invention is not limited to the above-described embodiments, and can be appropriately modified and improved. In addition, the materials, shapes, sizes, numbers, arrangement positions, and the like of the respective constituent elements in the above-described embodiments are arbitrary as long as the present invention can be realized, and are not limited thereto.
For example, in the above embodiment, the nozzle 15 has a stepped cylindrical shape, but the nozzle 15 may have a simple cylindrical shape with no level difference on the side surface in the entire straight line Ax direction.
Further, in the embodiment shown in fig. 2 (a) to 2 (d) and fig. 5 (a) to 5 (d), the openings 37b of the plurality of injection ports 37 are all inclined with respect to the plane orthogonal to the straight line Ax. However, in the quantitative spray device of the present invention, as long as at least one cluster CL of aerosol composition can be present in each of the plurality of divided spaces, at least one of the openings 37b may be inclined with respect to a plane orthogonal to the straight line Ax.
Here, the features of the above-described embodiments of the quantitative injection device 10 according to the present invention are briefly described in the following [1] to [3], respectively.
[1] A quantitative spraying device (10) for pest control is characterized in that,
the device is provided with: a pest control agent containing a pest control ingredient; a container (11) containing the pest control agent; and a spraying mechanism (12, 15, 16) that sprays an amount of the pest control agent from the container,
the injection mechanism (12, 15, 16) is configured to be capable of quantitative injection in which 1 injection amount of the pest control agent injected from the plurality of injection ports is a certain amount in a range of 0.5 to 2.0mL, and is configured to have a cylindrical injection portion (15) provided with a plurality of injection ports (37) for injecting the pest control agent,
the injection mechanism (12, 15, 16) is configured to: a space centered on a straight line (Ax) including the central axis of the ejection section is divided into a plurality of divided spaces such that a value obtained by equally dividing 360 DEG by the same number of divided portions as the plurality of ejection openings is a size of a central angle around the straight line, and at least one Cluster (CL) of the pest control agent ejected from each of the plurality of ejection openings is present in each of the plurality of divided spaces.
[2] The quantitative spray device for pest control according to item [1] above, wherein,
at least 1 opening (37 b) of the plurality of injection ports (37) is configured to be inclined with respect to a plane orthogonal to the straight line (Ax).
[3] The quantitative spray device for pest control according to the above [1] or the above [2], wherein,
the nozzle (37 a) corresponding to at least 1 of the plurality of nozzle openings (37) is configured to be inclined with respect to a plane orthogonal to the straight line (Ax).
The present application is based on Japanese patent application No. 2017-238159, filed on 12 months of 2017, the contents of which are incorporated herein by reference.
Industrial applicability
The quantitative spraying device for pest control of the present invention has excellent pest control effect on the pest to be controlled. The present invention having such an effect is useful, for example, as a spraying device for spraying an aerosol composition into a space where pest control is desired to continuously control pests in the space.
Claims (4)
1. A quantitative spraying device for pest control is characterized in that,
the quantitative spraying device for pest control comprises: a pest control agent containing a pest control ingredient; a container containing the pest control agent; and a spraying mechanism that sprays an amount of the pest control agent from the container,
the injection mechanism has an injection part provided with a plurality of injection ports for injecting the pest control agent and a flow path for supplying the pest control agent to the plurality of injection ports, the injection mechanism is configured to be capable of quantitative injection in which 1 total injection amount of the pest control agent injected from the plurality of injection ports is a certain amount in a range of 0.5 to 2.0mL,
the injection mechanism is configured to: dividing a space centered on a straight line including a central axis of the ejection portion into a plurality of divided spaces so that a value obtained by equally dividing 360 DEG by the same number of divided spaces as the plurality of ejection openings is a magnitude of a central angle around the straight line, and causing each of the plurality of divided spaces to have at least one cluster of the pest control agent ejected from each of the plurality of ejection openings,
the plurality of ejection openings communicate with the flow path through each of a plurality of ejection openings provided at a flow path end of the flow path extending along the central axis, and have ejection openings at positions where the pest control agent is ejected to the outside through the ejection openings.
2. The quantitative spray device for pest control according to claim 1, wherein,
the area of the opening is larger than the area of the spout.
3. The quantitative spray device for pest control according to claim 1 or 2, wherein,
at least 1 of the openings of the plurality of ejection openings are configured to be inclined with respect to a plane orthogonal to the straight line.
4. The quantitative spray device for pest control according to any one of claims 1 to 3, wherein,
the ejection port corresponding to at least 1 of the plurality of ejection ports is configured to be inclined with respect to a plane orthogonal to the straight line.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017238159 | 2017-12-12 | ||
| JP2017-238159 | 2017-12-12 | ||
| CN201880080528.0A CN111511206B (en) | 2017-12-12 | 2018-12-11 | Quantitative injection device for pest control |
| PCT/JP2018/045546 WO2019117160A1 (en) | 2017-12-12 | 2018-12-11 | Fixed quantity injection device for pest insect control |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880080528.0A Division CN111511206B (en) | 2017-12-12 | 2018-12-11 | Quantitative injection device for pest control |
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| CN116034974A true CN116034974A (en) | 2023-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201880080528.0A Active CN111511206B (en) | 2017-12-12 | 2018-12-11 | Quantitative injection device for pest control |
| CN202310269240.0A Pending CN116034974A (en) | 2017-12-12 | 2018-12-11 | Quantitative spraying device for pest control |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201880080528.0A Active CN111511206B (en) | 2017-12-12 | 2018-12-11 | Quantitative injection device for pest control |
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|---|---|
| JP (3) | JP7157079B2 (en) |
| CN (2) | CN111511206B (en) |
| MY (1) | MY196793A (en) |
| PH (1) | PH12020550850A1 (en) |
| WO (1) | WO2019117160A1 (en) |
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| CN117770243A (en) * | 2020-02-05 | 2024-03-29 | 大日本除虫菊株式会社 | Aerosol for controlling insect pests and method for controlling insect pests |
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2018
- 2018-12-11 JP JP2019559668A patent/JP7157079B2/en active Active
- 2018-12-11 CN CN201880080528.0A patent/CN111511206B/en active Active
- 2018-12-11 WO PCT/JP2018/045546 patent/WO2019117160A1/en active Application Filing
- 2018-12-11 CN CN202310269240.0A patent/CN116034974A/en active Pending
- 2018-12-11 MY MYPI2020002943A patent/MY196793A/en unknown
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2020
- 2020-06-09 PH PH12020550850A patent/PH12020550850A1/en unknown
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2022
- 2022-09-29 JP JP2022156334A patent/JP7260707B2/en active Active
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2023
- 2023-04-05 JP JP2023061511A patent/JP2023083339A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019117160A1 (en) | 2019-06-20 |
| MY196793A (en) | 2023-05-03 |
| JPWO2019117160A1 (en) | 2020-12-03 |
| JP2023083339A (en) | 2023-06-15 |
| PH12020550850A1 (en) | 2021-05-17 |
| JP7260707B2 (en) | 2023-04-18 |
| CN111511206B (en) | 2023-04-04 |
| JP7157079B2 (en) | 2022-10-19 |
| JP2022186732A (en) | 2022-12-15 |
| CN111511206A (en) | 2020-08-07 |
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