CN114222593B - Liquid spraying device - Google Patents

Liquid spraying device Download PDF

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Publication number
CN114222593B
CN114222593B CN202080055530.XA CN202080055530A CN114222593B CN 114222593 B CN114222593 B CN 114222593B CN 202080055530 A CN202080055530 A CN 202080055530A CN 114222593 B CN114222593 B CN 114222593B
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CN
China
Prior art keywords
liquid
nozzle
air
container
ejection port
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Active
Application number
CN202080055530.XA
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Chinese (zh)
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CN114222593A (en
Inventor
中野洋一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Kalmik Co ltd
Kyoritsu Seiyaku Corp
Original Assignee
Japan Kalmik Co ltd
Kyoritsu Seiyaku Corp
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Publication of CN114222593A publication Critical patent/CN114222593A/en
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Publication of CN114222593B publication Critical patent/CN114222593B/en
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/14Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • B05B7/08Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • B05B7/08Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10Apparatus features
    • A61L2209/13Dispensing or storing means for active compounds
    • A61L2209/134Distributing means, e.g. baffles, valves, manifolds, nozzles

Abstract

The utility model provides a liquid spraying device capable of spraying fine mist capable of floating in a large range for a longer time. The air nozzle (51) and the liquid nozzle (55) can be integrated by engaging the nozzle engagement portions formed in the peripheral wall portions of the air nozzle and the liquid nozzle with each other, so that the air discharge direction can be set at a predetermined angle with respect to the liquid discharge direction, and the air discharge port (511) and the liquid discharge port (5521) can be brought into a positional relationship in which they are brought close to each other by a predetermined distance. The air nozzle (51) and the liquid nozzle (55) which are engaged with each other and integrated with each other are mounted on the pedestal (57) so as to be able to be mounted at a constant position, whereby it is possible to easily mount the air nozzle and the liquid nozzle in a positional relationship suitable for generating mist having a fine particle diameter of a predetermined diameter or less.

Description

Liquid spraying device
Technical Field
The present utility model relates to a liquid spraying apparatus for spraying various liquids such as fragrances, deodorants, bactericides, and the like in the form of mist.
Background
Conventionally, an aromatic device, an aromatic apparatus, a deodorizer spraying a deodorant, a deodorizing apparatus, and the like have been developed in which the air environment in a space such as a toilet is preferably treated with an aromatic or deodorizing agent.
In the case of the fragrance and deodorizing device described above, only the fragrance and deodorizing agent are filled in the container. For example, since the fragrance is naturally evaporated and emitted in the fragrance dispenser, a region having strong local fragrance or a region having weak fragrance is formed in the indoor space. In particular, in the case of a wide space, it is difficult for the fragrance to uniformly spread over the entire space. This is also true in the case of deodorizers.
In order to solve the above-described problems, for example, patent document 1 discloses a liquid spraying device that can be used as an aromatic device or a deodorizing device, and in this liquid spraying device, there has been studied a study in which a space that is narrow such as a toilet in a general household is uniformly spread with an aromatic agent and a deodorizing agent even in a wide space such as a toilet in a hotel, a restaurant, or the like. That is, a container in which a liquid aromatic or the like is enclosed is disposed inside a main body casing having a suction port and a blowout port, and the liquid aromatic or the like in the container is disposed so as to be emitted to an air flow path portion between the suction port and the blowout port of air in the main body casing. Then, by driving the electric fan disposed in the air flow path portion, air flows between the suction port and the blowout port.
When the electric fan is driven, air is sucked into the air flow path portion from the suction port. The air forcibly evaporates and emits the liquid aromatic agent or the like in the container, and is blown out from the air outlet. Thus, the fragrance is filled into the room such as a toilet, or the room such as a toilet is deodorized.
On the other hand, patent document 2 discloses a liquid spraying device (air freshener) in which an ejection port of an air nozzle is disposed near an ejection port of a liquid nozzle that draws in a fragrance or a deodorant, and the liquid ejected from the ejection port of the liquid nozzle is blown away when air is ejected from the air nozzle.
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open No. 5-329199
Patent document 2: utility model registration No. 3201503
Disclosure of Invention
Problems to be solved by the utility model
The device for emitting a fragrance or a deodorant disclosed in patent document 1 is effective in that the entire fragrance or the like can be spread over a wide space, but only components that are easily evaporated are easily consumed because the liquid such as the fragrance or the like evaporated from the container is blown out by the electric fan. Therefore, there is a problem that the efficacy of fragrance and the like is lowered earlier with the lapse of time.
In contrast, in the case of the air freshener disclosed in patent document 2, since the liquid such as the fragrance is blown away by the air, there is an advantage that the mist of the liquid floats in the air for a longer period of time and the effect of the liquid such as the fragrance is exerted in a wider area than in the device disclosed in patent document 1.
The air freshener of patent document 2 adopts the following structure: the tubular air nozzle is disposed in a direction perpendicular to the tubular liquid nozzle, and the liquid ejected from the liquid nozzle is blown away by the air from the air nozzle. The liquid is atomized by the air, but the particle size of the liquid to be atomized varies depending on the distance between the liquid outlet of the liquid nozzle and the air outlet of the air nozzle. However, in patent document 2, the liquid nozzle and the air nozzle are separately disposed, and there is a case where a deviation occurs between products at the mounting positions of the liquid nozzle and the air nozzle, and there is a case where a difference occurs in the diffusion range and the diffusion time of fragrance depending on the products. In addition, due to the error in the mounting positions of the both, the contact between the liquid and the air may not be smoothly performed, and the liquid may adhere to the inner surface of the housing without being discharged to the outside from the opening in a state where the particle size is large.
The present utility model has been made in view of the above circumstances, and an object thereof is to provide a liquid spraying device capable of spraying various liquids such as a fragrance, a deodorant, a degerming agent, and a bactericide in the form of finer mist, and capable of spreading the efficacy of these liquids more uniformly over a wider space. In addition to this problem, the present utility model also aims to provide a liquid spraying device that can reduce the amount of liquid adhering to the inner surface of the housing.
Means for solving the problems
In order to solve the above problems, the liquid spraying device of the present utility model is characterized in that,
the liquid spraying device has:
a spraying mechanism, which is composed of: a liquid nozzle connected to a liquid container containing a liquid via a liquid supply pipe; and an air nozzle connected to an air supply source via an air supply pipe, the air nozzle spraying air to atomize the liquid ejected from the liquid ejection port of the liquid nozzle; and
a housing having an opening portion in which a liquid ejection port of the liquid nozzle and an air ejection port of the air nozzle are disposed in the vicinity thereof, and which is configured to discharge the liquid, which is atomized by ejecting the air, to the outside,
the liquid nozzle is provided with: an ejection port side portion formed with an ejection port side flow path having the liquid ejection port; and an inlet side portion having a liquid inlet through which the liquid is introduced via the liquid supply pipe and having an inlet side flow path communicating with the discharge port side flow path,
the air nozzle is formed with an air flow path having the air ejection port,
a nozzle engaging portion is formed in each of the peripheral walls of the liquid nozzle and the air nozzle, the nozzle engaging portion having a positional relationship in which the air discharge direction intersects with respect to the liquid discharge direction and the air discharge port is in close proximity to the liquid discharge port in a mutually engaged state,
the liquid nozzle has a pedestal engaging portion formed on a peripheral wall portion thereof, the pedestal engaging portion being different from the nozzle engaging portion, and the liquid ejection port being positioned above the horizontal and the air ejection port being positioned outside the opening portion in a state in which the pedestal engaging portion is engaged with a nozzle mounting portion of a pedestal portion provided in the housing, the air ejection port and the liquid ejection port being disposed in the vicinity of the opening portion.
Preferably, the liquid discharge port of the liquid nozzle is located at the same position as or at a position outside an inner virtual line passing through the opening and along the inner surface of the housing. More preferably, the liquid discharge port of the liquid nozzle is disposed within a range of a thickness of a peripheral edge portion forming the opening portion sandwiched by the inner virtual line and an outer virtual line along an outer surface of the housing.
Further, it is preferable that the air ejection opening of the air nozzle is provided within a range of a thickness of a peripheral edge portion forming the opening portion sandwiched by the inner virtual line and an outer virtual line along an outer surface of the housing.
Preferably, the pedestal portion has a slope portion that increases as approaching the opening portion, and the nozzle attachment portion is provided in the slope portion.
Preferably, the liquid nozzle has a connection tube portion protruding rearward opposite to the front discharge port side portion and connected to the liquid supply tube, and the pedestal portion has a tube passage slit through which the liquid supply tube connected between the connection tube portion and the liquid container passes.
In addition, the liquid supply pipe is preferably configured to have: a first tube which communicates with the liquid container side and is fixedly disposed through a slit so that a distal end opening portion thereof is opened to a connection tube portion of the liquid nozzle; and a second pipe connecting the first pipe and the connection tube.
Preferably, a container support frame for supporting the liquid container is provided in the housing, and a container connection portion is provided in the housing, and when the liquid container is connected to the liquid outlet of the liquid container in a state where the liquid container is supported by the container support frame, the liquid flow hole communicates with the liquid outlet, and the liquid supply pipe is disposed so as to communicate with the liquid flow hole of the container connection portion.
Preferably, the container support is supported in the housing via an elastic member so as to be capable of biasing the liquid container supported by the container support in a direction in which the liquid outlet is pressed toward the container connecting portion.
Preferably, the liquid nozzle, the air nozzle, and the pedestal are molded articles of synthetic resin.
Effects of the utility model
In the liquid spraying device according to the present utility model, the air nozzle and the liquid nozzle can be integrated by engaging the nozzle engagement portions formed in the peripheral wall portions of the air nozzle and the liquid nozzle with each other, so that the air discharge direction can be set at a predetermined angle with respect to the liquid discharge direction, and the air discharge port and the liquid discharge port can be brought into a positional relationship in which they are brought close to each other by a predetermined distance. In addition, the air nozzle and the liquid nozzle that are integrally engaged with each other in this manner can be always mounted at a constant position by mounting the pedestal engagement portion formed in the peripheral wall portion of the liquid nozzle to the nozzle mounting portion provided in the pedestal portion. Therefore, the air nozzle and the liquid nozzle can be easily mounted in a positional relationship suitable for generating mist having a fine particle diameter of a predetermined size or less, and the diffusion distance and the diffusion range of the mist can be stabilized, so that variation in the amount of mist between products can be reduced. As a result, the generation of mist with a large particle diameter is reduced, and the amount of mist adhering to the inner surface of the housing without diffusing from the opening to the outside can be reduced, and further, the waste of liquid can be reduced, and the amount of liquid used can be suppressed. The air nozzle, the liquid nozzle, and the pedestal portion are formed by using synthetic resin, so that dimensional accuracy is improved, and the positional relationship and the mounting position of each member are further stabilized, and variation in the mist spray amount is further reduced.
Further, by providing the liquid discharge port of the liquid nozzle at a position outside the inner virtual line passing through the opening and along the inner surface of the housing, preferably within a range of the thickness of the peripheral edge portion forming the opening sandwiched by the inner virtual line passing through the opening and along the inner surface of the housing and the outer virtual line passing through the opening and along the outer surface of the housing, the liquid discharge port is positioned at a position outside the inner virtual line, preferably substantially coplanar with the opening of the housing, and by blowing air from this position to the outside, the adhesion of mist to the inside of the housing can be further reduced. In this case, the effect of suppressing the adhesion of mist into the housing can be further enhanced by setting the air outlet of the air nozzle to the same position.
Further, by providing the pedestal portion with a tube slit through which the liquid supply tube can pass, it is possible to suppress the mist generation due to the kink.
Drawings
Fig. 1 is a perspective view showing an external appearance of a liquid spraying device according to an embodiment of the present utility model.
Fig. 2 is an exploded perspective view showing the internal structure of the liquid spraying device with the body cover removed.
Fig. 3 is a diagram showing the arrangement relationship of the liquid supply pipe, the pedestal portion, the container connection portion, and the like.
Fig. 4 is a side view of the spray mechanism in a state of being mounted to the housing.
Fig. 5 (a) is a side view of the air nozzle, the liquid nozzle, and the pedestal in an assembled state, and fig. 5 (b) is a front view.
Fig. 6 (a) to (c) are views showing the air nozzle, (a) is a perspective view seen from the front side, (b) is a perspective view seen from the connecting tube portion side, and (c) is a longitudinal sectional view.
Fig. 7 (a) to (c) are views showing the liquid nozzle, (a) is a perspective view seen from the front side, (b) is a perspective view seen from the connecting tube portion side, and (c) is a longitudinal sectional view.
Fig. 8 (a) to (e) are views showing the base portion, (a) is a perspective view seen from the front side, (b) is a perspective view seen from the rear side, (c) is a plan view, (d) is a side view, and (e) is a sectional view taken along line A-A of (c).
Detailed Description
An embodiment of the present utility model will be described below with reference to the drawings. As shown in fig. 1 to 3, the liquid spraying apparatus 1 of the present embodiment is configured to have a spraying mechanism 50 disposed in a housing 10. The housing 10 is formed in a substantially box shape having a back cover 20, a main body cover 30, and an upper cover 40 on the back side.
As shown in fig. 2, an upper frame 21 protruding forward is provided at a substantially middle position in the up-down direction of the back cover 20, and a battery case 23 in which the battery 11 is arranged is provided at a lower portion of the upper frame 21. The upper frame portion 21 elastically supports a container support frame 22 via an elastic member 21a such as a coil spring. The liquid container 12 containing a fragrance, a deodorant, and the like is placed on the container support frame 22. The main body cover 30 having a substantially コ -shaped cross section is detachably provided so as to cover the front surface and both side surfaces thereof.
The upper cover 40 covers the upper side of the main body cover 30, is formed to be inclined downward toward the front in a side view, is curved, and has an opening 41 formed in the front wall for discharging the mist-like liquid sprayed from the spraying mechanism 50 to the outside.
Further, a control board constituting the control unit 70 and an illuminance sensor 13 for detecting illuminance around the upper cover 40 are mounted on the inner side thereof. The illuminance sensor 13 is electrically connected to the control unit 70. An illuminance sensor window 42 facing the illuminance sensor 13 is formed on the upper wall of the upper cover 40 at a position rearward.
Next, the spraying mechanism 50, which is a main part of the present embodiment, will be described in detail. The spraying mechanism 50 is configured to have an air nozzle 51, a liquid nozzle 55, and a pedestal 57. The air nozzle 51 and the liquid nozzle 55 are stacked and supported by the pedestal 57 (see fig. 3 to 5).
First, the air nozzle 51 has an air flow path 510 formed therein, and has an air outlet 511 at the front end and an air inlet 512 at the rear end (see fig. 6 (c)). The air flow path 510 is formed in a straight line from the air inlet 512 to the air outlet 511. As shown in fig. 3, one end of the air supply pipe 52 is connected to the air inlet 512, and the other end of the air supply pipe 52 is connected to the compressor 54 as an air supply source. The compressor 54 is disposed at the position of the backrest cover 20 in the range surrounded by the battery case 23, is electrically connected to the control unit 70, is driven by a control signal from the control unit 70, and supplies air (compressed air) to the air nozzle 51 via the air supply pipe 52.
More specifically, as shown in fig. 6 (a) and (b), the air nozzle 51 includes a rectangular parallelepiped portion 51a formed into a substantially rectangular parallelepiped, and a connecting tube portion 51b protruding rearward from the rectangular parallelepiped portion 51a. In the center of the front end surface of the rectangular parallelepiped portion 51a in the width direction, a fine hole having a diameter of 1mm or less, which serves as the air discharge port 511, is preferably formed, and the protruding end of the connecting tube portion 51b serves as the air introduction port 512 having a diameter of about 1 to 4 mm. As shown in the cross-sectional view of fig. 6 (c), the air flow path 510 is formed to extend straight from the air inlet 512 to the air outlet 511, and the vicinity of the air outlet 511, which is the fine hole, is gradually tapered, and the flow velocity of the air introduced from the air inlet 512 is increased at the tapered portion, so that the air is ejected vigorously.
As shown in fig. 7 (a) to (c), the liquid nozzle 55 has an inlet side portion 551 and an outlet side portion 552. The inlet side portion 551 is formed in a substantially rectangular parallelepiped shape, and is integrally formed with the discharge port side portion 552 so as to be located on the front side thereof. The introduction port side portion 551 has a connection tube portion 551a protruding rearward. The end of the connection tube 551a is a liquid inlet 5511 having a diameter of about 1 to 4mm, and the inlet-side flow path 5510 is formed in a straight line from the liquid inlet 5511 toward the discharge port-side portion 552. A liquid supply pipe 56 for supplying the liquid in the liquid container 12 from the liquid inlet 5511 to the inlet-side flow path 5510 is connected to the connection tube 551a. The details of the liquid supply pipe 56 and the liquid container 12 will be described later together with the description of the pedestal 57.
The discharge port side portion 552 is located forward of the introduction port side portion 551 as described above, but the front end portion of the liquid discharge port 5521 is formed to protrude outward from an opposing surface 5515a opposing the air nozzle 51 in the peripheral wall portion 5515 of the substantially rectangular parallelepiped introduction port side portion 551. Therefore, the liquid nozzle 55 is formed in a substantially L-shape in a side view as a whole that the inlet side portion 551 and the outlet side portion 552 are joined together.
As shown in fig. 7 (c), an ejection port side flow path 5520 is formed inside the ejection port side portion 552 in a direction orthogonal to the introduction port side flow path 5510. From the back surface 552a of the ejection port side portion 552 (the surface located on the opposite side to the above-described facing surface 5515a of the introduction port side portion 551), a front end of the introduction port side flow path 5510 communicates with the side surface of the ejection port side flow path 5520 halfway, penetrating to the liquid ejection port 5521. The liquid discharge port 5521 is preferably formed as a fine hole having a diameter of about 1mm or less, and the discharge port side flow path 5520 is tapered before the liquid discharge port 5521, so that the flow rate of the liquid is increased. A cap member 5523 is fitted to close a rear surface side opening end 5522 of the discharge port side flow path 5520 facing the rear surface 552a of the discharge port side portion 552. Thus, the inlet-side flow path 5510 and the discharge-side flow path 5520 are formed as one substantially L-shaped flow path intersecting at substantially 90 degrees, and the liquid inlet 5511 is communicated with the liquid discharge port 5521.
Here, the air nozzle 51 and the liquid nozzle 55 are arranged in a stacked manner as described above, but the air nozzle 51 and the liquid nozzle 55 are provided with respective nozzle engaging portions, and are engaged with each other to form a single body. That is, as shown in fig. 6 (b) and (c), the air nozzle 51 is provided with an engagement groove 516 formed in a groove shape on the opposing surface 515a of the peripheral wall 515 opposing the liquid nozzle 55, and as shown in fig. 7 (a) to (c), the liquid nozzle 55 is provided with an engagement protrusion 5516 protruding in the direction of the opposing surface 515a of the air nozzle 51 and engaging with the engagement groove 516 on the opposing surface 5515a of the peripheral wall 5515 of the inlet side portion 551. These engaging groove portions 516 and engaging projections 5516 constitute engaging portions for the nozzle, respectively.
The air nozzle 51 and the liquid nozzle 55 are each formed into a substantially rectangular parallelepiped at the inlet side 551, and the opposing surfaces 515a and 5515a are each formed into a flat surface. Therefore, when the engaging groove 516 and the engaging projection 5516 are engaged, the air flow path 510 formed in the air nozzle 51 in a straight line and the inlet side flow path 5510 formed in the inlet side portion 551 are arranged in a substantially parallel positional relationship, and the respective connection tube portions 51b and 551a extend substantially parallel (see fig. 5).
On the other hand, the ejection port side portion 552 is located forward of the introduction port side portion 551 as described above, and the front end portion of the liquid ejection port 5521 is formed to protrude outward from the opposing surface 5515a of the substantially rectangular parallelepiped introduction port side portion 551. Therefore, in a state in which the engagement groove 516 of the air nozzle 51 and the engagement protrusion 5516 of the introduction port side portion 551 of the liquid nozzle 55 are engaged, the liquid discharge port 5521 is located in close proximity to the air discharge port 511 of the air nozzle 51 (see fig. 4 and 5). The separation distance between the two is preferably as close as possible, and is preferably 3mm or less, more preferably 2mm or less, and even more preferably 1mm or less in a direction substantially orthogonal to the center of the liquid discharge port 5521, although it depends on the capacity of the compressor 54, the diameter of the liquid discharge port 5521, and the like. Thereby, the air blown out from the air ejection port 511 of the air nozzle 51 traverses the liquid ejection port 5521 in the diameter direction, and the liquid is blown out and atomized to be spread.
When the engaging groove 516 and the engaging projection 5516, which are engaging portions for the nozzle, are engaged with each other in the air nozzle 51 and the liquid nozzle 55 according to the present embodiment, the length of the air nozzle 51 in the axial direction, the length of the inlet side portion 551 and the protruding length of the outlet side portion 552 of the liquid nozzle 55 in the axial direction, the forming positions of the engaging groove 516 and the engaging projection 5516, and the like are adjusted so as to have such a positional relationship.
A pedestal mounting frame 24 protruding forward from the back cover 20 is provided between the liquid container 12 supported by the container support frame 22 and the upper cover 40 in the housing 10, and a pedestal 57 is mounted on the pedestal mounting frame 24 (see fig. 3 and 4). As shown in fig. 8, the pedestal 57 has a bottom surface portion 571 having a substantially rectangular shape in a plan view, a rear surface portion 572 rising upward from the rear end edge of the bottom surface portion 571, and a pair of side plate portions 573, 574 extending from the rear surface portion 572 at a predetermined interval in the front end edge direction as substantially the center of both side edges. The upper edge portions 573a, 574a of the side plate portions 573, 574 extend flat from the rear end edge toward the front end edge, and become inclined surface portions 575 that gradually rise from the halfway position toward the front end edge. The pedestal portion 57 is attached to the pedestal portion mounting frame 24 such that the inclined surface portion 575 gradually increases in the direction of the opening 41 of the upper cover 40.
A nozzle attachment portion 576 is provided at the inclined surface portion 575. The nozzle attachment portion 576 is formed in a plate shape having a predetermined thickness, and a slit 576a extending laterally from a side edge portion is formed. The slit 576a is formed in a shape having a wide width on the lower surface side and a narrow width on the upper surface side.
On the other hand, a pedestal engaging protrusion 5517 protruding in the direction of the pedestal portion 57 and constituting a pedestal engaging portion is provided on the back surface (surface on the opposite side to the facing surface 5515 a) 5515b of the inlet side portion 551 of the liquid nozzle 55 (see (a) to (c) of fig. 7). The base engaging projection 5517 has a wide width at the front end in the protruding direction, and can be inserted into and engaged with a slit 576a formed in the nozzle attachment portion 576 of the base 57 from the side edge of the slit 576a. Therefore, the air nozzle 51 and the liquid nozzle 55, which are integrated by the engagement of the engagement groove 516 and the engagement protrusion 5516 as the engagement portions for the nozzle, are supported by the pedestal 57 together by engaging the pedestal engagement protrusion 5517 of the liquid nozzle 55 with the nozzle mounting portion 576 of the pedestal 57 (see fig. 4 and 5).
As described above, the nozzle attachment portion 576 is provided at the inclined portion 575 inclined so as to become higher toward the leading edge (opening portion 41). Therefore, when the pedestal engaging protrusion 5517 of the liquid nozzle 55 is engaged with the nozzle mounting portion 576, the liquid nozzle 55 and the air nozzle 51 engaged with the liquid nozzle 55 are disposed obliquely according to the inclination angle θ of the inclined portion 575 (see fig. 4 and 8 (d)).
Since the air flow path 510 of the air nozzle 51 and the inlet-side flow path 5510 of the liquid nozzle 55 are in a substantially parallel positional relationship, the air flow path 510 and the inlet-side flow path 5510 are disposed obliquely upward at substantially the same angle. The inclination angle θ of the inclined portion 575 is the spray angle of the liquid blown away by the air. Accordingly, the inclination angle θ of the inclined portion 575 is preferably 20 to 70 degrees, more preferably 30 to 60 degrees, with respect to the horizontal.
Here, since the liquid ejected from the liquid ejection port 5521 of the liquid nozzle 55 is blown away by the air ejected from the air ejection port 511 of the air nozzle 51 toward the outside of the opening 41, the adjacently arranged air ejection port 511 and liquid ejection port 5521 need to be located at positions facing the opening 41 formed in the upper cover 40. At this time, the air nozzle 51 and the liquid nozzle 55 are attached to the pedestal 57, and thus are positioned according to the size, the formation position, the inclination angle of the inclined surface portion 575, and the like of the pedestal engaging protrusion 5517, the nozzle attaching portion 576, and the inclined surface portion 575. Therefore, the dimensions and the like can be appropriately adjusted, and the air discharge port 511 and the liquid discharge port 5521 are positioned to face the opening 41.
Therefore, when the air nozzle 51 and the liquid nozzle 55 are assembled in a state where the pedestal portion 57 is mounted on the pedestal portion mounting frame 24, it is preferable that the three members of the air nozzle 51, the liquid nozzle 55, and the pedestal portion 57 are molded products of synthetic resin by injection molding or the like so as to ensure high dimensional accuracy such that the air outlet 511 and the liquid discharge port 5521 are positioned appropriately.
The air discharge port 511 and the liquid discharge port 5521 are located at positions facing the opening 41, but if located at positions further inward than the opening 41, the amount of liquid adhering to the inner surface of the housing 10 increases. Therefore, it is preferable to be disposed as close to the opening 41 as possible, and as shown in fig. 4, it is more preferable to be disposed at the same position as or at a position outside the inner virtual line passing through the opening 41 and along the inner surface of the housing 10. However, if the opening 41 protrudes outward, it is preferable that the opening 41 does not protrude outward because the opening is in contact with a human hand or the like or the appearance is affected.
Therefore, as shown in fig. 4, the liquid discharge port 5521 of the liquid nozzle 55 is further preferably provided to be located within a range of a thickness t of the peripheral edge portion forming the opening 41 sandwiched by an inner side virtual line P passing through the opening 41 and along the inner surface of the housing 10 and an outer side virtual line Q passing through the opening 41 and along the outer surface of the housing 10. Accordingly, the liquid discharge port 5521 of the liquid nozzle 55 is not located inside the opening 41, and therefore the liquid blown away by the air hardly adheres to the inner surface of the housing 10.
On the other hand, as shown in fig. 4, the air ejection port 511 of the air nozzle 51 is also more preferably provided within a range of a thickness t of the peripheral edge portion forming the opening 41 sandwiched by an inner virtual line P passing through the opening 41 and along the inner surface of the housing 10 and an outer virtual line Q passing through the opening 41 and along the outer surface of the housing 10. The air discharge port 511 of the air nozzle 51 is not necessarily limited to the position provided that the liquid discharged from the liquid discharge port 5521 can be discharged to the outside of the opening 41, but is preferably provided in the range of the thickness t of the opening 41 described above in proximity to the liquid discharge port 5521 so as to draw the liquid and discharge the liquid by the negative pressure.
In the present embodiment, the opening 41 of the housing 10 is formed in the upper cover 40 as described above, and is bent along the outer virtual line Q passing through the opening 41. Therefore, the outer surface 552b of the liquid nozzle 55, which is substantially parallel to the discharge port side flow path 5521 of the discharge port side portion 552, is also preferably curved so as to substantially follow the outer virtual line Q (see fig. 4 and (a) to (c) of fig. 7). Thus, the outer surface 552b does not protrude outward of the opening 41, and the liquid discharge port 5521 can be set at the predetermined position.
As shown in fig. 8 (b) and (c), the tube passing slit 571a is formed in the pedestal portion 57 in a range from a portion of the bottom surface portion 571 located between the pair of side plate portions 573 and 574 to a position midway between the rear surface portion 572. The tube is formed through the slit 571a in a size having an opening on an extension line of the connection tube portion 551a of the liquid nozzle 55. Thereby, the liquid supply pipe 56 connecting the connection tube 551a and the liquid container 12 is disposed through the pipe passing slit 571a.
Here, the liquid container 12 used in the present embodiment has a substantially rectangular parallelepiped shape as a whole, and has a cylindrical protruding portion 12a at an upper portion thereof, and a liquid outlet 12b is provided at a substantially central portion of the cylindrical protruding portion 12 a. A container inner tube 12c having a lower end immersed in the liquid is disposed in the liquid container 12, and an upper end of the container inner tube 12c is connected to the liquid outlet 12b in a communicating manner. On the other hand, a container connecting portion mounting frame 25 is provided slightly below the pedestal portion mounting frame 24 that supports the pedestal portion 57, and the container connecting portion mounting frame 25 protrudes forward from the back cover 20 and extends to a range above the liquid outlet 12b in a state where the liquid container 12 is placed on the container support frame 22. The container connecting portion 58 is attached to a portion of the container connecting portion attaching frame 25, which corresponds to a portion above the liquid outlet 12b of the liquid container 12.
The container connecting portion 58 is formed in a substantially disk-like shape having a predetermined thickness capable of being fitted into the cylindrical protruding portion 12a of the liquid container 12, and is provided with a liquid flow hole 58a penetrating vertically. When the liquid container 12 is placed on the container support frame 22, the upper frame portion 21 is biased upward by the elastic member 21a, and the cylindrical protruding portion 12a of the liquid container 12 is fitted to the container connecting portion 58. Thereby, the liquid outlet 12b of the liquid container 12 communicates with the lower end side of the liquid flow hole 58a of the container connecting portion 58.
The liquid supply pipe 56 is constituted by combining a first pipe 561 and a second pipe 562. One end 561a of the first tube 561 is connected to the upper end side of the liquid flow hole 58a of the container connection portion 58. The first tube 561 extends upward from the one end 561a, passes through the slit 571a through the tube passing through the base 57, and is slightly bent in the middle, and is formed in a substantially L-shape (preferably, a substantially L-shape having an obtuse angle at the intersection angle of both sides) extending in the direction of the connection tube 551a of the liquid nozzle 55. Thus, the front end opening 561b of the first tube 561 is substantially oriented to the opening of the connection tube 551a.
The second tube 562 connects the front end opening 561b of the first tube 561 with the connection tube 551a of the liquid nozzle 55. Since the front end opening 561b of the first tube 561 is oriented to be substantially open to the connection tube 551a, the second tube 562 connecting the two is disposed substantially straight.
The first tube 561 has a portion bent after passing through the slit 571a as described above, but is preferably made of a metal, a hard plastic or the like, so that the tube is not crushed at the bent portion.
The liquid supply pipe 56 of the present embodiment is constituted by the first pipe 561 passing through the pipe passing slit 571a and the second pipe 562 disposed substantially straight between the first pipe and the liquid nozzle 55 as described above, and therefore, as shown in fig. 4, an extremely curved portion is not formed in the middle, and it is possible to suppress the mist defect caused by kink.
Next, the operation of the spraying mechanism 50 will be described.
By driving the compressor 54, air (compressed air) is supplied to the air nozzle 51, and air (compressed air) is discharged obliquely upward with respect to the horizontal direction from the air discharge port 511. In the case where the illuminance sensor 13 is provided as in the present embodiment, when the illuminance sensor 13 detects that the illuminance is a predetermined illuminance, a control signal is transmitted from the control unit 70 and the compressor 54 is driven.
When air (compressed air) is injected, the liquid injection port 5521 of the liquid nozzle 55 approaches the air injection port 511 of the air nozzle 51 as described above, and therefore the air passes through the outside in the vicinity of the liquid injection port 5521 of the liquid nozzle 55 in a substantially orthogonal manner with respect to the injection direction of the liquid, that is, in a crossing manner. As a result, the vicinity of the liquid discharge port 5521 of the liquid nozzle 55 becomes negative pressure, and the liquid such as the fragrance and the deodorant in the liquid container 12 is sucked through the liquid supply pipe 56 and discharged from the liquid discharge port 5521 at the tip of the liquid nozzle 55. The liquid is ejected from the liquid nozzle 55 to the outside and collides with the air ejected from the air nozzle 51 through the immediately front side of the liquid ejection port 5521. Then, the liquid is miniaturized to several tens μm or less to several μm or less to become mist M, and is blown to the outside through the opening 41 of the upper cover 40 according to the air pressure injected from the air nozzle 51 and is diffused (see fig. 4).
As described above, since air (compressed air) passes through the outside in the vicinity of the liquid ejection port 5521 of the liquid nozzle 55, the liquid is forcibly sucked and blown away from the inside of the liquid container 12 via the liquid supply pipe 56. At this time, the liquid supply tube 56 is not crushed as described above, but the liquid is smoothly discharged, and the position of the liquid discharge port 5521 of the liquid nozzle 55 is located within the range of the thickness t of the opening 41 as described above, so that the amount of liquid adhering to the inner surface of the housing 10 is reduced, and the waste of liquid can be suppressed. The air nozzle 51, the liquid nozzle 55, and the pedestal 57 are molded articles of synthetic resin as described above, and by simply engaging them with each other, the liquid discharge port 5521 and the air discharge port 511 can be brought close to each other by a predetermined distance, and can be positioned in an appropriate range such as the range of the thickness t of the opening 41. As a result, the air nozzle 51 and the liquid nozzle 55 are easily attached to the appropriate positions in the housing 10, and thus the assembly work can be simplified, and further miniaturization of the mist M of the sprayed liquid can be promoted, as compared with a conventional structure in which the air nozzle and the liquid nozzle are formed by metal pipes and are disposed in the housing. Therefore, the mist M of the sprayed liquid can float in the air for a longer period of time, and the liquid effect of the fragrance or the like can be more uniformly spread over a wide space such as a toilet of a hotel, a restaurant or the like.
In addition, the control unit 70 may be configured to set the driving time of the spraying liquid by a timer, for example, and automatically spray the spraying liquid when the driving time becomes a predetermined time. On the other hand, in the case where the liquid spraying apparatus 1 of the present embodiment is installed in, for example, a public washroom or the like, it is not necessary to spray the liquid in a time zone where no person is using the liquid spraying apparatus. Accordingly, by providing the illuminance sensor 13 as described above, the spray driving is performed only when the luminance is equal to or higher than a predetermined value, and thus, waste of liquid consumption can be reduced.
The container holder 22 for holding the liquid container 12 is disposed on the upper holder portion 21 via an elastic member 21 a. Therefore, when the liquid container 12 is placed on the container support frame 22, the liquid outlet 12b of the liquid container 12 is communicated with the liquid flow hole 58a of the container connecting portion 58 located above the liquid outlet 12b by the elastic member 21 a. In the structure of patent document 2, the liquid supply pipe extends to the inside and outside of the liquid container and is connected to the liquid nozzle, and therefore, the replacement work of the liquid container is troublesome. However, according to the present embodiment, when the empty liquid container 12 on the container support frame 22 is pushed downward against the elastic force of the elastic member 21a, the engagement with the container connecting portion 58 is released, the liquid container 12 is detached, and then a new liquid container 12 is placed on the container support frame 22 while being pushed downward again, and the new liquid container 12 is connected to the container connecting portion 58 by the elastic force of the elastic member 21a, so that the replacement work is easy.
In the above description, the liquid is drawn by the negative pressure of the air discharged from the air nozzle 51 and discharged, but a pump (not shown) may be provided between the liquid container 12 and the liquid supply pipe 56 to drive the pump to draw a required amount of liquid. By driving the pump, a predetermined amount of liquid is forcibly ejected from the liquid ejection port 5521 at the tip of the liquid nozzle 55, and the air ejected from the air nozzle 51 collides with the liquid. Then, the liquid is finely atomized as in the above embodiment. In the case where the performance of the compressor 54, that is, the pressure of the air injected from the air nozzle 51 is not too high, a pump-based structure can be adopted.
Description of the reference numerals
1: liquid spraying device, 10: a housing, 12: liquid container, 20: back cover, 30: body cover, 40: upper cover, 41: opening portion, 50: spraying mechanism, 51: air nozzle, 516: engagement groove portion (engagement portion for nozzle (air nozzle)), 52: air supply pipe, 54: compressor, 55: liquid nozzle, 5516: engagement projection ((nozzle engagement portion of liquid nozzle)), 5517: pedestal engaging projections (pedestal engaging portions), 56: liquid supply tube, 57: pedestal portion 575: bevel portion 576: a nozzle mounting portion.

Claims (10)

1. A liquid spraying device is characterized in that,
the liquid spraying device has:
a spraying mechanism, which is composed of: a liquid nozzle connected to a liquid container containing a liquid via a liquid supply pipe; and an air nozzle connected to an air supply source via an air supply pipe, the air nozzle spraying air to atomize the liquid ejected from the liquid ejection port of the liquid nozzle; and
a housing having an opening portion in which a liquid ejection port of the liquid nozzle and an air ejection port of the air nozzle are disposed in the vicinity thereof, and which is configured to discharge the liquid, which is atomized by ejecting the air, to the outside,
the liquid nozzle is provided with: an ejection port side portion formed with an ejection port side flow path having the liquid ejection port; and an inlet side portion having a liquid inlet through which the liquid is introduced via the liquid supply pipe and having an inlet side flow path communicating with the discharge port side flow path,
the air nozzle is formed with an air flow path having the air ejection port,
a nozzle engaging portion is formed in each of the peripheral walls of the liquid nozzle and the air nozzle, the nozzle engaging portion being in a mutually engaged state, wherein the air ejection direction is in a positional relationship orthogonal to the liquid ejection direction, and the air ejection port is in a positional relationship close to the liquid ejection port,
the liquid nozzle has a pedestal engaging portion formed on a peripheral wall portion thereof, the pedestal engaging portion being different from the nozzle engaging portion, and the liquid ejection port being positioned above the horizontal and the air ejection port being positioned outside the opening portion in a state in which the pedestal engaging portion is engaged with a nozzle mounting portion of a pedestal portion provided in the housing, the air ejection port and the liquid ejection port being disposed in the vicinity of the opening portion.
2. The liquid spraying device of claim 1, wherein,
the liquid ejection port of the liquid nozzle is provided at a position that is the same as or outside an inner imaginary line passing through the opening and along an inner surface of the housing.
3. The liquid spraying device according to claim 2, wherein,
the liquid ejection port of the liquid nozzle is provided within a range of a thickness of a peripheral edge portion forming the opening portion sandwiched by the inner side virtual line and an outer side virtual line along an outer surface of the housing.
4. The liquid spraying device according to claim 2, wherein,
the air ejection opening of the air nozzle is disposed within a range of a thickness of a peripheral edge portion forming the opening portion sandwiched by the inner virtual line and an outer virtual line along an outer surface of the housing.
5. The liquid spraying device of claim 1, wherein,
the pedestal portion has a slope portion that increases as approaching the opening portion, and the nozzle attachment portion is provided at the slope portion.
6. The liquid spraying apparatus according to claim 5, wherein,
the liquid nozzle has a connection tube portion protruding rearward opposite to the front discharge port side portion and connected to the liquid supply tube,
the pedestal portion is formed with a pipe passage slit through which the liquid supply pipe connecting the connection tube portion and the liquid container passes.
7. The liquid spraying apparatus according to claim 6, wherein,
the liquid supply pipe is configured to have:
a first tube which communicates with the liquid container side and is fixedly disposed through a slit so that a distal end opening portion thereof is opened to a connection tube portion of the liquid nozzle; and
and a second pipe connecting the first pipe and the connection tube.
8. The liquid spraying device according to any one of claims 1 to 7, wherein,
the container support frame for supporting the liquid container is provided in the housing, and the container connection portion is provided in the housing, and when the liquid container is connected to the liquid outlet of the liquid container in a state where the liquid container is supported by the container support frame, the liquid flow hole communicates with the liquid outlet, and the liquid supply pipe is disposed so as to communicate with the liquid flow hole of the container connection portion.
9. The liquid spraying device of claim 8, wherein,
the container support is supported in the housing via an elastic member so as to be able to apply a force to the liquid container supported by the container support in a direction in which the liquid outlet is pressed toward the container connecting portion.
10. The liquid spraying device of claim 1, wherein,
the liquid nozzle, the air nozzle, and the pedestal are molded articles of synthetic resin.
CN202080055530.XA 2019-07-30 2020-05-19 Liquid spraying device Active CN114222593B (en)

Applications Claiming Priority (3)

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JP2019140265A JP7170993B2 (en) 2019-07-30 2019-07-30 Liquid atomizer
JP2019-140265 2019-07-30
PCT/JP2020/019813 WO2021019872A1 (en) 2019-07-30 2020-05-19 Liquid spray device

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CN114222593B true CN114222593B (en) 2023-09-19

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114950766B (en) * 2022-05-31 2023-02-28 温州瓯斯达电器实业有限公司 Atomization diffusion device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203777368U (en) * 2011-04-28 2014-08-20 共立制药株式会社 Air freshener
JP2014240061A (en) * 2013-06-12 2014-12-25 東邦インターナショナル株式会社 Nozzle for liquid spray machine
US9511166B1 (en) * 2016-03-02 2016-12-06 Puzhen Life Co., Limited Aroma diffuser with direct diffusion of essential oil and diffusing method thereof
CN107107082A (en) * 2014-12-22 2017-08-29 阿耐思特岩田株式会社 Ejecting gun
CN108080167A (en) * 2018-01-30 2018-05-29 广州大学 A kind of protrusion flow-disturbing atomising device
JP3221864U (en) * 2019-01-16 2019-06-27 士平有限公司 Spray equipment
CN110035832A (en) * 2019-03-08 2019-07-19 璞真生活有限公司 Atomizer and atomising device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9519692D0 (en) * 1995-09-27 1995-11-29 Quillin Helen Atomising nozzle
CA2698137A1 (en) * 2006-08-30 2008-03-06 Kurve Technology, Inc. Aerosol generating and delivery device
US8820665B2 (en) * 2007-09-25 2014-09-02 S.C. Johnson & Son, Inc. Fluid dispensing nozzle
JP2012125664A (en) * 2010-12-13 2012-07-05 Mtg:Kk Spray device
FR3055863B1 (en) * 2016-09-12 2019-09-27 Illinois Tool Works Inc DEVICE FOR INJECTING A CLEANING LIQUID OF A MOTOR VEHICLE AIR INTAKE CIRCUIT
JP7002208B2 (en) * 2017-04-05 2022-01-20 株式会社 Mtg Sprayer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203777368U (en) * 2011-04-28 2014-08-20 共立制药株式会社 Air freshener
JP2014240061A (en) * 2013-06-12 2014-12-25 東邦インターナショナル株式会社 Nozzle for liquid spray machine
CN107107082A (en) * 2014-12-22 2017-08-29 阿耐思特岩田株式会社 Ejecting gun
US9511166B1 (en) * 2016-03-02 2016-12-06 Puzhen Life Co., Limited Aroma diffuser with direct diffusion of essential oil and diffusing method thereof
CN108080167A (en) * 2018-01-30 2018-05-29 广州大学 A kind of protrusion flow-disturbing atomising device
JP3221864U (en) * 2019-01-16 2019-06-27 士平有限公司 Spray equipment
CN110035832A (en) * 2019-03-08 2019-07-19 璞真生活有限公司 Atomizer and atomising device

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CN114222593A (en) 2022-03-22
JP2021020195A (en) 2021-02-18
JP7170993B2 (en) 2022-11-15

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