JP2003154294A - Nozzle and spray apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the whole of an apparatus compact and to facilitate the operation of a spray nozzle and the replacement of a sprayed liquid. SOLUTION: An outer nozzle 13 and an inner nozzle 14 which are formed from a flexible tube and has a tip end part formed into a free end are provided. The outer nozzle has a flow passage 15 the distal end of which communicates with a pressurized gas supply source and the proximal end of which has a gas spray port between the outer nozzle and the outside surface of the inner nozzle. The inner nozzle has a passage 1 the distal end of which communicates with a supply source of a sub-medium composed of a liquid or the like and the proximal end of which has a spray port of the sub-medium. The sub-medium spray port is arranged in a negative pressure zone formed in the vicinity of the gas spray port. At least the front parts of the outer nozzle and the inner nozzle are rotary moved with the spray of the gas and the sub-medium is sucked through the passage and sprayed in a mixed state with the gas.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jet nozzle for ejecting two fluids required for cleaning or painting, such as gas and liquid, while simultaneously rotating and diffusing them into a certain area while ejecting the fluids. And its ejection device.

[0002]

2. Description of the Related Art For example, a jetting device for a fluid used in a cleaning device jets a gas such as compressed air from a jetting port of a jetting nozzle to remove dust and the like from a portion to be cleaned. In addition, the spraying device for the fluid used in the cleaning device is a liquid such as water or cleaning liquid, or a powdery or granular polishing agent is sprayed from the spraying nozzle through the pressure of high pressure air to wash away the dirt on the part to be cleaned. Remove. Therefore, the conventional ejection nozzle and the ejection device for ejecting a fluid or the like have a structure in which the ejection fluid or the like is ejected from the upstream side of the nozzle by the pressure of high-pressure air.

In this structure, the jet nozzle is formed of a flexible cylindrical body so that the jet fluid can be swirled during jetting to rotationally diffuse the jet fluid.
The same applies to the nozzle having a unique configuration disclosed in 1-123350.

The cleaning device disclosed in Japanese Patent Laid-Open No. 2000-51800 uses a jet nozzle having the above-mentioned unique structure that swirls when a fluid is jetted due to the flexibility of the material itself. As shown schematically in FIG. 5, this cleaning device connects a water supply source A, a compressed air supply source B, a detergent supply source C, an ejection nozzle E, and an injection nozzle E and each of the supply sources A to C. A pipeline F (comprising branch pipelines F1 to F3 on the upstream side and a main pipeline F4 on the downstream side) is provided. In this apparatus, compressed air is fed from the compressed air supply source B to the water supply source A, or the detergent supply source C is supplied.
The compressed air is supplied from the compressed air supply source B to the water, and the fluid pressure-fed from each of the branch pipelines F1 to F3 is discharged from the jet nozzle F by operating the switching means D provided at the connection portion with the main pipeline F4. , Spray detergent, or compressed air.

[0005]

However, in the conventional apparatus, as typified by the above-mentioned Japanese Patent Laid-Open No. 2000-51800, compressed air is sent to supply sources A and C of jet fluid such as water or detergent, It is pressurized and supplied to the ejection nozzle E. For this reason, a strong compressed air supply source B must be used, the water supply source A and the detergent supply source C also become large, and the size of the entire apparatus becomes large.

Further, as the ejection nozzle mechanism, a gun type one equipped with the above-mentioned switching means is used in consideration of operability (see reference numeral E'in FIG. 5). Since the pipelines F1 to F3 are connected, these pipelines become an obstacle, and it becomes difficult to perform work such as cleaning with the nozzle E.

Further, in order to change the jetted fluid to a different liquid or the like, the tanks serving as the supply sources A and C must be replaced, which is troublesome.

It is an object of the present invention to provide a nozzle and a jetting device, which can not only make the entire device compact, but also can easily operate the jetting nozzle and can easily exchange the jetting fluid. .

[0009]

The present invention is characterized in that it has the following constitution in order to achieve the above object. That is, the nozzle according to claim 1 is formed of a flexible pipe material and has an outer nozzle having a free end portion, and a flexible pipe material inserted into the outer nozzle and having flexibility similar to the outer nozzle. And an inner nozzle whose tip portion forms a free end. The outer nozzle is connected to the outer surface of the inner nozzle at the base end thereof while communicating with the pressurized gas supply source,
It has a flow path having a gas ejection port at its tip. The inner nozzle is
The interior has a passage communicating with a secondary medium supply source for jetting, which has a base end made of a liquid or powder or a mixture of liquid and powder, and has a jet outlet for the secondary medium at the tip. The outlet of the secondary medium is arranged in a negative pressure region formed near the gas outlet when the gas is ejected from the gas outlet.
In addition, at least the front portion of the outer nozzle and the inner nozzle including both ejection ports swirl as gas is ejected from the ejection port through the flow path, and at the same time, the supply source passes through the passage. The secondary medium is sucked from the secondary medium and is ejected from the ejection port of the secondary medium in a mixed state with the gas.

A jetting apparatus according to a thirteenth aspect is the jetting apparatus using the nozzle of the first aspect, wherein the nozzle of the first aspect further includes a pressurized gas supply source, a liquid or a granular material, or a liquid and a granular material. And a secondary medium supply source for jetting.

It is desirable to mount a balancer on the outer peripheral surface of the outer nozzle to assist the swiveling motion of the outer nozzle and the inner nozzle. A single balancer or a plurality of balancers are attached to the outer circumference of the tip of the outer nozzle or the like at appropriate intervals in the length direction of the outer nozzle. Further, it is preferable to provide a restricting member for restricting the swirling motion of the outer nozzle and the inner nozzle outside the outer nozzle. The restricting member may be in the form of a forward expanding type trumpet that surrounds the entire swirl motion part of the outer nozzle and the inner nozzle, or may be composed of a ring member that partially surrounds the swirl motion part of the outer nozzle. A brush may be attached to the tip of the regulating member as necessary, and the bristles of the brush may be made to move by colliding with the swirling flow.

The outer nozzle and the inner nozzle are made of flexible synthetic resin or rubber tube material. The outer nozzle and the inner nozzle may be made of different flexible materials.

The pressurized gas for jetting and the secondary medium are appropriately selected according to the purpose of use of the nozzle or jetting device. For example, the pressurized gas is compressed air sent from a supply source such as a compressor, and the secondary medium is a cleaning liquid, a cleaning agent or a paint. The cleaning liquid may be a mixed liquid of a detergent and a cleaning material.

The compressor or the aerosol type compressed air supply source and the gas flow path of the nozzle are communicated with each other through the first communication passage. An opening / closing means for the communication passage is interposed in the first communication passage. The opening / closing means and the nozzle are preferably integrated and integrated in a gun-type ejection nozzle mechanism.

Further, the auxiliary medium supply source is a storage container for the auxiliary medium such as the cleaning liquid, and the storage container and the internal passage for the auxiliary medium of the inner nozzle can be opened and closed via the second communication passage. It is good to communicate. The storage container is detachably connected to, for example, a gun type ejection nozzle mechanism, and communicates with the internal passage for the sub medium of the inner nozzle via the second communication passage.

In the nozzle and the ejection device of the present invention,
The pressurized gas is ejected from the first communication passage, through the flow path of the outer nozzle, and from the gas ejection port at the tip. The secondary medium is ejected from the secondary medium ejection port at the tip portion through the internal passage of the inner pipe. The secondary medium is not pressure-fed to the supply source side of the secondary medium by applying a positive pressure as in the conventional case, but is accompanied by a negative pressure generated in the vicinity of the gas ejection port due to the ejection of gas from the secondary medium ejection port. It is sucked out automatically. The sucked secondary medium rides on the flow of gas diffused and jetted in a spiral shape by the swirling motion of the outer nozzle and the inner nozzle, and is discharged forward.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a partial sectional schematic view of a cleaning fluid ejection device according to an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of a nozzle portion thereof. The fluid ejection device includes a fluid ejection gun 1, a pressurized air supply source 2, and a cleaning liquid storage container 3.

The fluid ejecting gun 1 has a nozzle 6 attached to the tip of a gun body 4 via a connecting body 5. The connecting body 5 is
It has a passage 7 through which gas can pass. A connection hole 8 communicating with the passage 7 is provided in the lower portion of the peripheral surface of the connecting body 5. The cleaning liquid storage container 3 is detachably connected to the connection hole 8 via an opening / closing valve operating member 9.

At the front end of the connecting body 5, the mounting portion 1 of the nozzle 6 is attached.
1 is fixed. The nozzle mounting portion 11 has a through hole 12 inside. The base end portion of the outer nozzle 13 is fixed to the front end of the nozzle mounting portion 11, and the inner nozzle 14 is inserted into the outer nozzle 13. The gap between the inner surface of the outer nozzle 13 and the outer surface of the inner nozzle 14 is defined by the gas flow path 1
5 is formed. The flow path 15 communicates with the through passage 12 of the nozzle mounting portion 11 and the passage 7 of the connector 5. The rear portion of the inner nozzle 14 is the through hole 1 of the nozzle mounting portion 11.
After entering the passage 7 of the connecting body 5 from 2, it extends to the connection hole 8 of the connecting body 5 and is connected to the on-off valve operating member 9. The passage formed inside the inner nozzle 14 forms a passage 16 for the cleaning liquid.

The entire outer nozzle 13 is made of a flexible synthetic resin tube material such as nylon, Teflon (registered trademark), polyurethane or polypropylene. The inner nozzle 14 is also made of a similar synthetic resin tube material at least in the portion disposed in the outer nozzle 13.
The outer nozzle 13 and the inner nozzle 14 have the flexibility that the material has because the gas passes through the flow path 15 between the inner nozzle 14 and the outer nozzle 13 and the gas is ejected from the ejection port 15a at the tip of the flow path 15. Thus, the portion of the outer nozzle 13 in front of the fixed base end portion performs a turning motion.

The outlet 16a at the tip of the passage 16 of the inner nozzle 14 is the outlet 1 at the end of the passage 15 of the outer nozzle 13.
It projects slightly outside 5a, that is, in the negative pressure region formed in the vicinity of the ejection port when the gas is ejected from the flow path 15.

On the outer periphery of the outer nozzle 13, a plurality of balancers 17 made of synthetic resin are attached at the tip of the outer nozzle 13 and at predetermined positions spaced in the length direction. The balancer 17 imparts an inertial force to the above-described swivel movement of the nozzle 6 to efficiently swirl the nozzle. Outside the outer nozzle 13,
A trumpet-shaped restriction guide 18 having a larger diameter is attached as it goes forward. Opening end 1 of regulation guide 18
8a projects beyond the nozzle 6. The regulation guide 18 is made of a synthetic resin material and causes the nozzle 6 to perform a turning motion along the inner peripheral surface thereof. This allows
The movement of the nozzle 6 is regulated within a certain range, and at the same time, gas or the like is ejected along the opening end 18a of the regulation guide 18.

An air compressor is used as the pressurized air supply source 2 and is connected to the gun body 4 via the supply pipe line 19. In the gun body 4, the compressed air supply source 2 is added to the passage 7 of the connecting body 5 when the trigger lever 20 is pulled.
Inject pressurized air from. The sent pressurized air enters the passage 15 of the outer nozzle 13 from the passage 7 through the through hole 12. While pulling the trigger 20, the supply pipe 19, the passage 7, the through hole 12, and the flow passage 15 of the outer nozzle 13
By maintaining the communication state with the trigger 20 and returning the trigger 20, the supply conduit 19 and the passage 7 are disconnected.

The detergent liquid storage container 3 is detachably attached upstream of the on-off valve operating member 9 connected to the connection hole 8 of the connecting body 5. The storage container 3 stores the detergent liquid therein without pressurizing it. In the storage container 3, an insertion tube 21 extends toward the bottom of the container. The insertion tube 21 communicates with the base end portion of the inner nozzle 14 via the opening / closing valve operating member 9.

In the figure, reference numeral 10 is an operating lever of the on-off valve operating member 9, 22 is a hole formed at a required position of the regulation guide 18, 23 is a lid of the storage container 3, and 24 is a container body. As the attachment / detachment mechanism of the storage container 3, an appropriate means such as a screw type or a fitting type is adopted.

The state of use of the fluid ejection device having the above-mentioned configuration will be described. First, in the case where pressurized air and detergent liquid are simultaneously ejected by this device, the detergent liquid storage container 3 is mounted and the operation lever 10 of the on-off valve operation member 9 is set to the open position to insert the insertion tube 21 and the inner nozzle. 14 and the communication state.

Next, when the compressor which is the pressurized air supply source 2 is driven and the trigger 20 of the gun body 4 is pulled, the compressed air from the compressor 2 passes through the supply pipe line 19, the passage line 7 and the through line 12 and the outer nozzle 13 To the flow path 15 (the series of paths through which air flows forms a first communication path), and is vigorously ejected from the ejection port 15a at the tip of the flow path 15. At this time, since the outer nozzle 13 and the inner nozzle 14 both have front portions formed of a flexible synthetic resin material and have fixed base end portions and have free end portions, the ejection nozzles are A swirling motion is performed so that the free end having the outlet 15a is rampant. This turning motion is restricted to a certain radial range by a restriction guide 18 provided outside the outer nozzle 13. Along the inner surface of the regulation guide 18, the nozzle 6
Makes regular turning movements. Further, the turning motion of the nozzle 6 is stabilized by the balancer 17 mounted around the outer nozzle 13.

When air is vigorously ejected from the flow passage 15 of the outer nozzle 13, a negative pressure acts on the ejection port 16a of the inner passage 16 of the inner nozzle 14 to cause the inner flow passage 15 of the inner nozzle 14.
Then, the detergent solution in the detergent container is sucked up from the insertion tube 21 (this path through which the detergent solution flows forms a second communication path). Then, the detergent liquid rides on the air jetted from the outer nozzle 13 and is discharged in a mist state in a mixed state with the air. As described above, since the outer nozzle 13 and the inner nozzle 14 eject the air and the detergent liquid while performing the swirling motion, the mixed fluid of these becomes a swirl flow in which the momentum is amplified and rubs against the surface to be cleaned. collide. The swiveling movement of the nozzle 6 is restricted to a certain range by the restriction guide 18 and waste energy of the jet energy is not generated. Therefore, a stronger collision force or cleaning force can be obtained as compared with the case where the nozzle is simply jetted forward. .

In the fluid jet gun, since only a single supply pipe line 19 is connected to the gun body 4, the pipe line does not interfere with the jetting work. Further, since the detergent storage container 3 is located between the gun body 4 and the nozzle 6, the operation balance of the gun body 4 is also good. When changing or replenishing the detergent liquid, it suffices to remove the storage container 3 and attach the storage container 3 for a different detergent liquid or the supplemented detergent liquid. The hole 22 of the regulation guide 18 takes in external air and ejects it along the inner surface of the regulation guide 18 to generate an induced flow from the hole 22 to the tip of the regulation guide 18 when the nozzle swirls. .

When the operating lever 10 of the on-off valve operating member 9 is closed and the trigger lever 20 of the gun body 4 is pulled, the compressed air sent from the compressor 2 is passed through the passage 7 and the through hole in the same manner as described above. Flow path 15 of outer nozzle 13 via 12
And is ejected from the ejection port 15a at the tip. on the other hand,
The detergent liquid insertion tube 21 is blocked from the internal passage 16 of the inner nozzle 14 by the opening / closing valve operating member 9. Therefore, the outer nozzle 13 and the inner nozzle 14 discharge the swirling flow of only air while performing the swirling motion as described above. Such a swirling flow of only air is effective in removing dust and light attachments by blowing off as a pretreatment for cleaning. Further, it is also useful for drying the target surface after spraying the cleaning liquid or applying the paint.

FIG. 3 is a schematic partial cross-sectional view showing a fluid ejection device according to another embodiment of the present invention. This device has the same basic structure as the fluid ejection device of FIG. 1, and in addition to this, the opening end 1 of the regulation guide 18 provided in the nozzle 6 is added.
An annular brush 30 is attached to 8a. The bristles 31 of the annular brush 30 are planted along the axial direction of the regulation guide 18. In FIG. 2, the same members as those in the apparatus of FIG. 1 are designated by the same reference numerals.

The mixed fluid of the air and the cleaning liquid ejected from the inner nozzle 14 and the outer nozzle 13 swirling along the inner circumference of the regulation guide 18 is expanded from the opening end 18a along the inner circumferential surface of the regulation guide 18 in the radial direction. Erupted into. The bristles 31 of the annular brush 30 extending along the axial direction of the regulation guide 18 are bent in the radial direction when colliding with the mixed fluid ejected while swirling, and return when deviated from the collision. Therefore, the annular brush 30 also swirls the position of the bristles 31 that are bent in the direction in which the diameter gradually increases with the swirling flow. By swirling the position of the bristles 31 that are bent in the radial direction, the brush 30 is brought into contact with the surface to be cleaned, and the surface to be cleaned is uniformly cleaned by the swirling motion of the brush 30 and the swirling motion of the jetted mixed fluid. Will be.

In the above-mentioned two embodiments, the cleaning liquid was used as the medium ejected from the inner nozzle, but the present invention is not limited to this, and a powdery material having a diameter capable of passing through the inner passage of the inner nozzle is used. Alternatively, a granular cleaning material may be used. The abrasive material is used alone or in a state of being mixed with a liquid. The abrasive material is also housed in the storage container and is detachably attached to the gun body of the fluid injection gun.

In the present invention, an aerosol type compressed air supply container can be used as a supply source of the pressurized gas.
In this case, the connecting body 5 in the embodiment of FIGS. 1 and 3 is connected to the nozzle body above the compressed air supply container, and the nozzle 6 according to the present invention and the secondary medium storage container 3 are fixed to this connecting body 5. . FIG. 4 shows a conceptual configuration diagram thereof. The same members as those in FIGS. 1 and 3 are designated by the same reference numerals, and the description thereof will be omitted. In addition,
A small-sized storage container 3 is used. No fluid ejection gun is used in this embodiment. The aerosol type compressed air supply container 41 having the nozzle body 40 is replaced with this. It is more compact than the one using a compressor or fluid injection gun.

Although not shown, in the present invention, a suction force can be applied to the ejection port of the outer nozzle by providing a bypass in the middle of the flow path of the outer nozzle and providing a switching valve to this bypass side. . It is also possible to further provide a second bypass in the middle of the flow path of the outer nozzle to attract and collect dust and dust sucked from the outer nozzle ejection port to the second bypass side.

The restriction guide member is a member for restricting the swivel motion of the front part of the nozzle within a certain radial range, and is therefore constituted by, for example, a member that covers the outside of the outer ring in a ring shape with a required gap. You can also

[0037]

The present invention has the following effects. Claim 1
The invention according to claim 2, the gas is passed from the pressurized gas supply source to the flow path of the outer nozzle, and the sub medium is supplied from the sub medium supply source from the sub medium supply source from the inner passage of the inner nozzle by the negative pressure when the gas is ejected from the gas ejection port. Since the secondary medium is sucked and ejected in a mixed state with the gas, the secondary medium can be ejected from the nozzle without pressurizing. Moreover, the secondary medium can be atomized and mixed into the gas by the jetting force of the gas and diffused and discharged.

Further, when the gas passes through the flow path of the outer nozzle, the outer nozzle and the inner nozzle make a swirling motion, so that the mixture of the secondary medium and the gas can be jetted in a swirling flow. When the swirl flow reaches the target object, the swirl flow collides by rubbing the surface of the target object, which is effective for cleaning and washing.

When the restricting member for the nozzle swirling motion is arranged outside the outer nozzle, the nozzle can be swung along the inner surface of the restricting member, and the ejected matter from the nozzle can be concentrated within a certain range. .

If the regulating member is formed in a trumpet shape and an annular brush is attached to the opening end of the regulating member, the bristles of the brush are sequentially bent outward and returned when the gas or the like is jetted while swirling. The surface of the object can be rubbed evenly with the bristles of the brush.

According to the apparatus invention of claim 13, claim 1
In addition to the effect of the present invention, it is not necessary to add a pressurizing means to the auxiliary medium supply source such as a detergent liquid, and the entire apparatus can be made compact.

Further, since the gas supply pipeline can be the only gas supply pipeline to the jet nozzle, the jet nozzle can be operated easily. Furthermore, since the supply source of the sub medium can be the storage container, the sub medium can be easily replaced.

[Brief description of drawings]

FIG. 1 is a schematic view showing a fluid ejection device according to an embodiment of the present invention in a partial cross section.

FIG. 2 is an enlarged cross-sectional view showing a part of the nozzle of FIG.

FIG. 3 is a schematic view showing a partial cross section of a fluid ejection device according to another embodiment of the present invention.

FIG. 4 is a conceptual configuration diagram of a fluid ejection device according to still another embodiment of the present invention.

FIG. 5 is a conceptual configuration diagram showing an example of a conventional cleaning device.

[Explanation of symbols]

1 Fluid ejection gun 2 Pressurized air supply source 3 Cleaning liquid storage container 4 gun body 5 connected body 6 nozzles 7 passage 8 connection holes 9 Open / close valve operating member 10 Nozzle mount 11 through roads 13 Outer nozzle 14 inner nozzle 15 Gas flow path 16 Cleaning liquid passage 17 Balancer 18 Regulation guide 19 Supply pipeline 20 Trigger lever 21 Insertion tube 30 ring brush 31 Brush Hair 40 nozzle body 41 Aerosol type compressed air supply container

Continued front page    F term (reference) 3B201 AA31 AB52 BB32 BB88 BB92                       BB94                 4F033 PA01 PA11 PB02 PC05 QA01                       QA09 QB02Y QB03X QB05                       QB12Y QB18 QB20 QD04                       QD19 QE09 QE21

Claims (21)

[Claims] 1. An outer nozzle which is formed of a flexible pipe material and whose free end portion is a free end, and a flexible pipe material which is inserted into the outer nozzle and has the same flexibility as the outer nozzle. And an outer nozzle whose inner end forms a free end, and the outer nozzle communicates with a pressurized gas supply source between the outer nozzle and the outer surface of the inner nozzle, and has a gas outlet at the end. The inner nozzle has a passage and communicates with a secondary medium supply source for jetting, which has a base end of a liquid or a granular material or a mixture of a liquid and a granular material, and a distal end of the secondary medium. It has a passage with an outlet, and the outlet of the secondary medium is located in the negative pressure region formed near the gas outlet when the gas is ejected from the gas outlet As gas is ejected from the outlet,
At least the front part of the outer nozzle and the inner nozzle including both jet ports swirl, and at the same time, the secondary medium is sucked from the supply source through the passage and jetted in a mixed state with gas from the jet port of the secondary medium. , Characterized by a nozzle. 2. The nozzle according to claim 1, wherein a balancer is attached to the outer periphery of the outer nozzle to assist the swiveling motion of the outer nozzle and the inner nozzle. 3. The nozzle according to claim 1 or 2, further comprising a restriction member, which is provided outside the outer nozzle, for restricting the swiveling motion of the outer nozzle and the inner nozzle. 4. The nozzle according to claim 1 or 2, wherein the outer nozzle and the inner nozzle are made of a flexible synthetic resin tube material. 5. The nozzle according to claim 1, wherein the gas is compressed air and the pressurized gas supply source is a compressor. 6. The secondary medium is a cleaning liquid, The nozzle according to any one of claims 1 to 3. 7. The nozzle according to any one of claims 1 to 3, wherein the secondary medium is a polishing and cleaning material composed of a powdery material or a granular material. 8. The nozzle according to claim 1, wherein the secondary medium is a mixed liquid of a liquid and a cleaning material. 9. The nozzle according to claim 2, wherein a plurality of the balancers are attached at intervals along the outer peripheral length direction of the outer nozzle. 10. The nozzle according to claim 3, wherein the restriction member is formed in a front widening type trumpet shape that surrounds the entire swirl motion parts of the outer nozzle and the inner nozzle. 11. The nozzle according to claim 10, wherein an annular brush is attached to the expanding opening end of the trumpet-shaped regulating member. 12. The fluid ejection nozzle according to claim 3, wherein the restriction member is a ring-shaped member that partially surrounds the swirl motion portion of the outer nozzle. 13. An outer nozzle which is formed of a flexible pipe material and has a free end at its tip, and a flexible pipe material which is inserted into the outer nozzle and has flexibility similar to the outer nozzle. And a nozzle having an inner nozzle whose tip portion forms a free end, a pressurized gas supply source, and a secondary medium supply source for ejection composed of a liquid or a granular material or a mixture of a liquid and a granular material, The outer nozzle has a base end of a flow path formed between the outer surface of the inner nozzle and the outer surface of the inner nozzle, which communicates with a pressurized gas supply source, and has a gas ejection port at the front end of the flow path. The base end of the passage communicates with the above-mentioned secondary medium supply source and has an outlet for the auxiliary medium at the tip, and the outlet for the auxiliary medium ejects the gas when the gas is ejected from the gas outlet. It is located in the negative pressure area formed near the outlet, passes through the flow path, and As the body erupts,
At least the front part of the outer nozzle and the inner nozzle including both jet ports swirl, and at the same time, the sub medium is sucked from the supply source through the inner passage of the inner nozzle, and the sub medium is gas from the jet port of the sub medium. The ejection device is characterized in that it is ejected in a mixed state with. 14. The jetting apparatus according to claim 13, wherein a balancer is attached to the outer circumference of the outer nozzle to assist the swiveling motion of the outer nozzle and the inner nozzle. 15. The fluid ejecting apparatus according to claim 13 or 14, further comprising a restricting member, which is provided outside the outer nozzle, for restricting the swirling motion of the outer nozzle and the inner nozzle. Ejection device. 16. The compressed gas supply source is a compressed air supply source, and the compressed air supply source and the gas flow path of the nozzle are communicated with each other through a first communication passage. The ejection device according to any one of 1. 17. A gun-type jet nozzle mechanism in which an opening / closing means for the communication passage is provided in the first communication passage, and the opening / closing means and the nozzle are integrated into one unit. The ejection device according to claim 1. 18. The ejection device according to claim 16, wherein the compressed air supply source is an aerosol type compressed air supply source. 19. The secondary medium supply source is a storage container for the secondary medium, and the storage container and the internal passage for the secondary medium of the inner nozzle are provided.
The ejection device according to any one of claims 13 to 15, wherein the ejection device is opened and closed through a second communication passage. 20. The ejection device according to claim 19, wherein the storage container is a storage container for cleaning liquid. 21. The storage container according to claim 17, wherein the storage container is detachably connected to the gun-type ejection nozzle mechanism and communicates with an internal passage for a secondary medium of an inner nozzle via a second communication passage. Ejection device.