JP2004089917A - Liquid jetting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an epoch-making liquid-jetting device having a high commodity value. <P>SOLUTION: By this liquid-jetting device, liquid can be jet to a desired site. The device is constituted so that it is provided with a liquid-jetting part 1 in a cover 2, which has an opening 2a at the end, and an air-jetting part 3 in the cover 2. Air-flow is jetted from the air-jetting part 3 to the outside of the liquid flow which is jetted from the liquid-jetting part 1 so as to surround the liquid flow. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a revolutionary liquid ejecting apparatus that has never existed before.
[0002]
Problems to be solved by the prior art and the invention
Conventionally, the outer wall of a building such as an office building or a high-rise apartment is generally washed by spraying, for example, cleaning water discharged from a hose onto the outer wall of the building. In this cleaning work, a scaffold is set up in advance around the building, and a net is arranged around the scaffold to cover the entire perimeter of the building. ing.
[0003]
However, the installation of the water shield structure is very costly due to the cost of materials and labor, and the work of installing and removing the water shield structure is very time consuming. This causes a delay in the construction period of the entire cleaning operation.
[0004]
The present applicant pays attention to the above-described problems, and provides a liquid scattering prevention structure in a liquid spraying device that exhibits an unprecedented epoch-making effect.
[0005]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0006]
A liquid ejecting apparatus for ejecting a liquid to a desired portion, wherein a liquid ejecting section 1 is provided in a cover body 2 having an opening 2a at a tip, and an air ejecting section 3 for ejecting air is provided in the cover body 2. The air flow jetted from the air jet unit 3 is provided so as to be jetted to the outside of the liquid flow jetted from the liquid jet unit 1 in a state surrounding the liquid flow. The present invention relates to a liquid ejecting apparatus.
[0007]
Further, in the liquid ejecting apparatus according to the first aspect, the air ejecting section 3 is annularly disposed around the liquid ejecting section 1 according to the liquid ejecting apparatus.
[0008]
Further, in the liquid ejecting apparatus according to any one of claims 1 and 2, an ejection operation unit 6 for ejecting liquid from the liquid ejecting unit 1 is provided on a hand-held main body 5 provided with the liquid ejecting unit 1 at a distal end. The present invention relates to a liquid ejecting apparatus.
[0009]
Further, in the liquid ejecting apparatus according to any one of claims 1 to 3, the cover body 2 has a conical shape having an opening 2a at a tip, and the liquid ejecting section 1 has a vertex of the conical cover body 2. The liquid ejecting apparatus is provided on the inside of the liquid ejecting unit 1, a liquid diffusing unit 13 is provided in front of the liquid ejecting unit 1, and the air ejecting unit 3 is annularly provided around the liquid diffusing unit 13. It is related.
[0010]
Function and effect of the present invention
According to the present invention, for example, since the air (air flow) ejected from the air ejecting unit 3 is outside the liquid (liquid flow) ejected from the liquid ejecting unit 1, scattering around the liquid flow is prevented. Is done.
[0011]
Specifically, when the liquid ejecting apparatus according to the present invention is applied to a scene in which cleaning water is ejected to a wall surface in an outer wall cleaning operation of a building such as an office building or a high-rise apartment, for example, the liquid ejecting apparatus is applied to the wall surface. When the cleaning water is jetted from the unit 1, for example, the cleaning water jetted from the liquid jetting unit 1 or the cleaning water that hits the wall surface and rebounds is prevented from being scattered by the air flow, and does not scatter to the outside of the cover body 2. The scattering of the washing water is naturally prevented by the cover body 2.
[0012]
As described above, the present invention exhibits an unprecedented epoch-making action and effect, and has extremely high commercial value.
[0013]
DESCRIPTION OF THE PREFERRED EMBODIMENTS
1 to 3 illustrate a first embodiment of the present invention, and FIGS. 4 to 6 illustrate a second embodiment, which will be described below.
[0014]
A first embodiment will be described.
[0015]
The first embodiment is a liquid ejecting apparatus for ejecting a liquid to a desired portion, in which a liquid ejecting section 1 is provided in a cover body 2 having an opening 2a at a tip, and air is ejected into the cover body 2. An air jet unit 3 is provided, and the air flow jetted from the air jet unit 3 is configured to be jetted to the outside of the liquid flow jetted from the liquid jet unit 1 in a state surrounding the liquid flow. Things. Although the present embodiment is configured as a liquid ejecting apparatus used for cleaning an outer wall of a building such as an office building or a high-rise apartment, for example, it may be constituted as a liquid ejecting apparatus for washing an automobile, or may be configured as a liquid as a liquid. It is possible to change the design as appropriate if it is a device that is used in a situation where there is a need to spray a liquid and prevent its scattering, such as configuring as a liquid spraying device for spray painting. The application range of the embodiment is various.
[0016]
More specifically, the present embodiment has a hose connection portion 8 for connecting a hose 7 extending from a liquid pressure pump (not shown), and a flow passage through which a liquid pressure-fed from the liquid pressure pump can flow. A handheld main body 5 having a tubular shape is provided, and a nozzle body 9 as the liquid ejecting unit 1 is provided at a tip end of the handheld main body 5. Reference numeral 5a is a grip.
[0017]
In addition, the hand-held main body 5 is provided at its base end with an ejection operation section 6 for regulating the flow of the liquid pumped from the above-described liquid pressure pump, and by pulling a lever 10 of the ejection operation section 6, The liquid ejecting section 1 is configured to eject the liquid at a desired timing.
[0018]
In addition, the hand-held main body 5 is provided with a liquid diffusing section 13 at the tip thereof.
[0019]
As shown in FIGS. 1 and 2, the liquid diffusing unit 13 is configured by disposing a bowl-shaped mesh member 13 b at the tip of a support member 13 a protruding from the tip of the hand-held main body 5. The mesh member 13b adjusts the momentum of the liquid ejected from the liquid ejecting unit 1 to diffuse the liquid.
[0020]
Further, an air injection unit 3 is provided outside the liquid diffusion unit 13.
[0021]
The air injection unit 3 is configured by arranging a plurality of injection ports 11 a at a front position of an annular pipe 11 provided around the liquid diffusion unit 13, and the annular pipe 11 is attached to the hand-held main body 5. , An air supply pipe 12 extending from an air pressure pump not shown is connected.
[0022]
Therefore, the air pumped from the air pump is jetted from the air jet unit 3 in the same direction as the liquid jetted from the liquid jet unit 1, and the air flow jetted from the air jet unit 3 The liquid is ejected outside (upward and left and right sides) of the liquid stream ejected from 1 while surrounding the liquid stream. Note that, similarly to the liquid ejecting unit 1 described above, an operating unit that ejects air from the air ejecting unit 3 at a desired timing may be provided.
[0023]
Further, the hand-held main body 5 is provided with a cover body 2 surrounding the liquid ejecting unit 1 and the air ejecting unit 3 described above.
[0024]
The cover body 2 is formed of a suitable synthetic resin member (transparent resin) as shown in FIG. 1 and is formed in a conical shape whose diameter increases toward the tip end, and an opening is formed at the tip end. A portion 2a is formed.
[0025]
The cover body 2 is configured such that the inner part at the apex position can be detachably fitted and connected to the tip end of the hand-held main body 5. It is configured such that mist-like liquid or the like splashed and bounced off is prevented from scattering, and the liquid adhering to the inner surface 2b of the cover 2 is led out from the opening 2a along the downwardly inclined tapered surface.
[0026]
The liquid led out from the opening 2a of the cover 2 is collected by a drainage unit 27 provided in the gondola body 15 described later together with the liquid collected in the water collection unit 21 described later, and is drained.
[0027]
Further, in the present embodiment, a dedicated gondola body 15 suitable for outer wall cleaning work for cleaning the wall surface 24 is provided using the above-described liquid ejecting apparatus.
[0028]
As shown in FIG. 3, the gondola body 15 has a square U-shaped fence 17 around a rectangular scaffold 16 having a predetermined width and a predetermined length.
[0029]
The fence 17 is provided with a frame 18 comprising an upright portion 18a and a hanger portion 18b projecting horizontally from the upright portion 18a. The apparatus is configured to be suspended via a balancer 19 and configured to be able to lock a net 20 as a covering material that covers the entire gondola body 15.
[0030]
Further, the fence 17 is provided with a drive device 25 (motor) for each of the left and right fence portions, and the drive device 25 is provided with a wire 26 that extends vertically from the rooftop of the building to the ground, By driving the driving device 25, the gondola body 15 is configured to be able to move up and down along the wire 26. Therefore, the gondola body 15 can move up and down at a position separated by a predetermined distance from the outer wall of the building. Become.
[0031]
Further, the gondola body 15 is provided with a water collecting part 21 at a lower position in front of the gondola body 15.
[0032]
As shown in FIG. 3, the water collecting portion 21 has a U-shaped elongate member, a bottom surface of which is inclined downward toward the center, and a tube member 21b that penetrates the bottom position of the bottom surface of the gutter member 21a. The liquid flowing on the wall surface 24 falls on the gutter member 21a, and the liquid entering the gutter member 21a is collected at the center of the bottom surface and flows from the pipe member 21b to the drain portion 27 provided on the gondola body 15. Will be. The liquid collected in the drain section 27 is drained through a hose 27a extending to the ground.
[0033]
Further, the gutter member 21a is provided with an abutting member 28 which is in contact with the wall surface 24 in an inclined state at the upper edge of the front surface.
[0034]
In this embodiment, a brush member is employed as the contact member 28.
[0035]
The contact member 28 is configured to efficiently guide the liquid flowing on the wall surface 24 to the gutter member 22.
[0036]
That is, if the abutting member 28 is a plate-shaped member, even if the abutting member 28 is abutted against the wall surface 24, if the wall surface 24 has irregularities, the tip of the abutting portion contacts the concave portion of the wall surface 24. Therefore, there is a problem that the liquid flowing through the concave portion flows downward along the wall surface 24 without being guided to the gutter member 21a. In this regard, in the present embodiment, the contact member 28 is used as the contact member 28. Since the brush member is employed, the brush member can be inserted into the wall member 24 corresponding to the irregularities of the wall surface 24, and the liquid flowing on the wall surface 24 can be reliably guided to the gutter member 21a. That is, it is desirable that the contact member 28 be a member that follows the unevenness of the wall surface 24a. In addition to the brush member, for example, a bristle member or any other configuration that can exhibit the characteristics of the present embodiment is appropriate. To adopt.
[0037]
A case where an outer wall cleaning operation is performed using the present apparatus having the above configuration will be described.
[0038]
First, the outer wall cleaning operation is performed by an operator riding on a gondola body 15 that moves up and down along the wall surface 24 (see FIG. 3). More specifically, a cleaning water application step of spraying cleaning water onto the wall surface 24, a cleaning agent application step of applying a cleaning agent, and a finishing step of spraying cleaning water again to wash dirt floating on the wall surface 24 The liquid ejecting apparatus is used when ejecting the washing water to the wall surface 24 in the washing water applying step and the finishing step.
[0039]
Specifically, when the cleaning water W is jetted from the liquid jetting unit 1 toward the wall surface 24, for example, the cleaning water W immediately after being jetted from the liquid jetting unit 1 or, for example, the washing water W that has hit against the wall surface and has rebounded, Even if an attempt is made to scatter from the gap between the opening 2a of the cover body 2 and the wall surface 24 to the surroundings, the scatter is caused by the air flow of the air A injected from the air injection unit 3 flowing so as to cover the outside of the cleaning water flow. Will be prevented. Further, scattering of the washing water W is also prevented by the cover body 2.
[0040]
Incidentally, the present applicant has actually tried the outer wall cleaning work using the present apparatus, and out of the cleaning water W injected from the liquid injection unit 1, about 80% of the cleaning water W flows along the wall surface 24. The water is drained from the water collecting part 21 through the drain part 27, and the remaining approximately 20% of the washing water W flows along the inner surface 2b of the cover body 2 and flows from the opening part 2a through the water collecting part 21 and the drain part 27. It has been confirmed that wastewater will be treated.
[0041]
Therefore, according to the present embodiment, the washing water is prevented from being scattered or dropped as much as possible, so that a scaffold is formed to cover the entire building with the net as in the related art, There is no need to install a water barrier, such as installing a water receiving plate, or otherwise, so the cleaning work is very cost-effective and dramatically shortens the overall construction work period. Will be able to do that.
[0042]
Further, in this embodiment, the use of the gondola body 15 makes it possible to perform a better cleaning operation. Further, since the gondola body 15 is provided with the net 20 that covers the entire gondola body 15, Even if the washing water W is scattered, it can be surely prevented, and by making the surroundings difficult to see, a sense of security can be provided to the worker and a good working environment can be provided. It can be very good looking without being seen.
[0043]
Further, in the present embodiment, since the ejection operation unit 6 for ejecting the washing water W from the liquid ejecting unit 1 is provided on the hand-held main body 5 provided with the liquid ejecting unit 1 at the distal end, the operator can wash the washing water to a desired part. W can be injected.
[0044]
Next, a second embodiment will be described.
[0045]
The second embodiment is of a type in which a liquid lead-out portion 4 is provided on a cover body 2 as shown in FIGS.
[0046]
The liquid lead-out section 4 is configured by connecting a hose 14 penetrating to the lower inner surface of the tip end of the cover 2, and the liquid ejected from the liquid ejecting section 1 described above adheres to the inner surface 2 b of the cover 2, The liquid flowing along the downward inclined surface is configured to be led out. The liquid led out by the liquid lead-out part 6 is collected by a drain part 27 provided in the gondola body 15 described later together with the liquid collected in the water collecting part 21 and drained.
[0047]
The rest is the same as in the first embodiment.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first embodiment.
FIG. 2 is a schematic operation explanatory view of the first embodiment.
FIG. 3 is an explanatory diagram of a use state of the first embodiment.
FIG. 4 is a perspective view showing a second embodiment.
FIG. 5 is a schematic operation explanatory view of a second embodiment.
FIG. 6 is an explanatory view of a use state of the second embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Liquid injection part 2 Cover body 2a Opening part 3 Air injection part 5 Hand-held main body 6 Injection operation part 13 Liquid diffusion part

Claims (4)

A liquid ejecting apparatus for ejecting a liquid to a desired portion, wherein a liquid ejecting unit is provided in a cover body having an opening at a tip, and an air ejecting unit for ejecting air is provided in the cover body. A liquid ejecting apparatus characterized in that an air flow ejected from the liquid ejecting device is ejected outside the liquid jet ejected from the liquid ejecting section in a state surrounding the liquid jet. 2. The liquid ejecting apparatus according to claim 1, wherein the air ejecting unit is annularly disposed around the liquid ejecting unit. The liquid ejecting apparatus according to any one of claims 1 and 2, further comprising an ejection operation unit configured to eject a liquid from the liquid ejecting unit to a hand-held main body provided with the liquid ejecting unit at a distal end. Liquid ejector. The liquid ejecting apparatus according to any one of claims 1 to 3, wherein the cover body has a conical shape having an opening at a tip, and the liquid ejecting unit is provided inside a vertex position of the conical cover body, A liquid ejecting apparatus, wherein a liquid diffusing unit is provided in front of the liquid ejecting unit, and an air ejecting unit is annularly provided around the liquid diffusing unit.

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