JP2003024837A - Foam jetting gun - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foam jetting gun which jets detergent-containing foam having high voluminous feeling and dos not scratch an automobile body or the like even by rubbing it with a brush or a dust cloth. SOLUTION: Pressurized water in a water passage 9 having a pressurized water intake port 7 is joined and mixed with compressed air in an air passage 10 having a compressed air take-in port 8 at a joining part 11 to produce a mixture, liquid detergent is incorporated in the mixture in a venture passage 19A, the detergent-containing mixture is formed into the foam in a foam producing part 18 and the foam jetting gun jets the detergent-containing foam having high film stability to the outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foam launching gun, and more particularly to a foam launching gun which is manually operated by an operator to wash foam containing detergent when cleaning a body of an automobile.

[0002]

2. Description of the Related Art Conventionally, as a foaming gun for cleaning an automobile body, a foaming agent is a foaming agent that mixes tap water taken in from a tap water intake with a detergent and sucks the outside air into the tap water containing the detergent to eject the foam containing the detergent. Fire guns are known.

[0003]

However, according to the conventional foam launching gun, the launched detergent-containing foam has a large amount of water and lacks in volume, and when the body is rubbed with a brush or a rag from above the launched foam. There was a problem that the body was easily scratched.

The present invention solves the above-mentioned conventional problems and provides a foaming gun capable of discharging foam containing detergent, which is rich in volume and does not damage an automobile body or the like even if it is rubbed with a brush or a rag. The main purpose is that.

[0005]

SUMMARY OF THE INVENTION A foam firing gun according to the present invention comprises a water passage having a pressurized water intake, an air passage having a compressed air intake, pressurized water in the water passage and compressed air in the air passage. A merging portion where a mixture of merging pressurized water and compressed air is formed, a mixture passage through which the mixture formed in the merging portion flows, and a liquid detergent supply portion to which a liquid detergent container can be attached, the inside of the mixture passage A negative pressure is generated in the mixture passage based on the flow of the mixture to suck up the liquid detergent in the liquid detergent container into the mixture passage and mix it into the mixture, and a liquid detergent suction portion in the mixture passage. A manual valve provided upstream of the raising position and a foam generating unit provided downstream of the liquid detergent suction position for foaming the detergent-containing mixture are provided, and the manual valve is opened. When operated, characterized in that the high detergent containing foam of stability of film from the foam generator is fired outside.

The manual valve opens and closes the mixture passage.

Check valves are provided in the water passage and the air passage, respectively.

The liquid detergent supplier and the foam generator can be attached to and detached from the mixture passage.

The foam-forming section has a mesh-like structure in which linear bodies are entwined in the vertical and horizontal directions, and the detergent-containing mixture passes through the mesh-like structure.

A liquid coating agent supply section can be attached to and detached from the mixture passage instead of the liquid detergent supply section and the foam generating section, and the liquid coating agent container is attached to the liquid coating agent supply section. Is possible,
A negative pressure is generated in the mixture passage based on the flow of the mixture in the mixture passage to suck up the liquid coating agent in the liquid coating agent container into the mixture passage and mix it with the mixture, and the manual valve is opened. When manipulated, a foam containing a liquid coating is emitted to the outside.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of a foam firing gun according to one embodiment, and FIG. 2 is a sectional view thereof.

In FIGS. 1 and 2, reference numeral 1 denotes a main body of a foam firing gun, and the main body 1 includes a handle portion 2, an operating lever 3 and a barrel-corresponding portion 4. A lower end portion of the handle portion 2 constitutes a fluid intake portion 5, and a connecting component 6A is detachably attached to a tip end portion of the barrel-corresponding portion 4.

The fluid intake 5 has a pressurized water intake 7 and a compressed air intake 8. The pressurized water intake 7 is connected to the other end of a water supply hose (not shown), one end of which is connected to a water outlet (faucet, not shown). The compressed air intake 8 has an air compressor with a regulator (not shown).
The other end of an air tube (not shown) whose one end is connected to is connected to. A water passage 9 extends from the pressurized water intake 7,
Further, an air passage 10 extends from the compressed air intake 8, and the water passage 9 and the air passage 10 intersect at a confluence portion 11. In the confluence section 11, the pressurized water and the compressed air join together to form a mixture of the pressurized water and the compressed air (pressurized water containing compressed air). A mixture passage 14A extends from the confluence portion 11. Check valves 1 are provided in the water passage 9 and the air passage 10, respectively.
2 and a check valve 13 are provided.

A mixture passage 14B is formed inside the handle portion 2 so as to be continuous with the mixture passage 14A inside the fluid intake portion 5.

Inside the barrel-corresponding portion 4, a mixture passage 14C which is continuous with the mixture passage 14B inside the handle portion 2 is formed. The outlet of the mixture passage 14C is provided with a manual valve 15 that opens and closes the outlet of the mixture passage 14C in association with the movement of the operation lever 3 manually operated by the operator. When the operating lever 3 is not operated, the manual valve 15 is maintained in a closed state by the urging force of the spring 16 to shut off the outlet of the mixture passage 14C, so that the operator can operate the operating lever 3 against the urging force of the spring 16. When pushed down toward the handle portion 2, the valve is opened and the outlet of the mixture passage 14C is opened.

The connecting part 6A comprises a liquid detergent supply part 17A and a foam generating part 18.

The liquid detergent supply unit 17A is a container holder 23A.
And a liquid detergent container 2 for the container holder 23A.
1A is detachably attached, and the liquid detergent container 21A can be replaced. The liquid detergent supply unit 17A has a venturi passage 1 continuous with the mixture passage 14C inside the barrel-corresponding portion 4.
9A and a suction passage 20A opening to the venturi passage 19A. A suction tube 22A opening to the vicinity of the bottom surface 21a of the liquid detergent container 21A is continuous to the suction passage 20A. The liquid detergent in the liquid detergent container 21A is a mixture of pressurized water and compressed air in the venturi passage 1.
When passing through 9A at a high speed, the negative pressure generated in the venturi passageway 19A causes the suction tube 22A and the suction passageway 20A to sequentially pass through and is sucked up into the venturi passageway 19A and mixed into the mixture.

The foam generator 18 includes a venturi passage 19A.
Is located on the downstream side of, and the detergent-containing mixture produced by the liquid detergent supply unit 17A flows into the foam generation unit 18. The foam generating unit 18 includes a cylindrical body 24 whose both end openings are narrowed and a net-like mass 25 arranged inside the cylindrical body 24. The reticulated mass 25 is composed of linear bodies entwined in the vertical and horizontal directions. The linear body of the reticulated mass 25 is preferably glass fiber or plastic fiber having excellent waterproofness,
The reticulated mass 25 is preferably configured so as not to be plastically deformed by high pressure water. The hydraulic foam generator 18 has a net-like lump 25.
The passage of the detergent mixture through it produces a detergent foam with a highly stable membrane.

Next, the operation of the foam firing gun having the above construction will be described.

When the operating lever 3 is not operated, the manual valve 15 keeps the outlet of the mixture passage 14C closed, so that neither pressurized water, compressed air nor liquid detergent is supplied, and nothing is ejected from the foam firing gun. . Further, due to the action of the check valves 12 and 13, it is possible to prevent the pressurized water from entering the air tube or the compressed air from entering the water hose.

When the operating lever 3 is operated, the manual valve 15
Will open the mixture passage 14C, and as a result,
Pressurized water and compressed air are continuously supplied to form a mixture at the confluence portion 11, and the mixture is supplied to the venturi passage 19A.
As it passes through the negative pressure, the liquid detergent is sucked up by the negative pressure to form a detergent-containing mixture, and the detergent-containing mixture passes through the reticulated mass 25 to generate a highly stable detergent-containing foam of the film, which is then exposed to the outside. It will be fired. In addition,
The mechanism by which the highly stable detergent-containing foam of the membrane is produced is mainly due to the inclusion of compressed air in pressurized water,
It is speculated that this is due to the fact that the detergent-containing mixture was passed through the mesh.

FIGS. 3 and 4 show a side view and a cross-sectional view of a foam firing gun constructed by removing the connecting part 6A from the foam firing gun shown in FIGS. 1 and 2 and mounting another connecting part 6B. There is.

In FIGS. 3 and 4, the connecting part 6B is
A liquid coating agent supply unit 17B is provided.

The liquid coating agent supply unit 17B has a container holder 23B, and the liquid coating agent container 21B is detachably attached to the container holder 23B, so that the liquid coating agent container 21B can be replaced. The liquid coating agent supply unit 17B has a venturi passage 19B which is continuous with the mixture passage 14C inside the barrel-corresponding portion 4 and a suction passage 20B which opens into the venturi passage 19B. The suction passage 20B is coated with the liquid coating agent. The suction tube 22B that opens near the bottom surface 21b of the agent container 21B is continuous. Liquid coating agent container 21B
When the mixture of the pressurized water and the compressed air passes through the venturi passage 19B at a high speed, the liquid coating agent in the inside passes through the suction tube 22B and the suction passage 20B in order by the negative pressure generated in the venturi passage 19B, and then in the venturi passage 19B. Is sucked up and mixed into the mixture.

In the foam gun shown in FIGS. 3 and 4, when the operating lever 3 is operated, the manual valve 15 opens the mixture passage 14C, so that pressurized water and compressed air are continuously supplied. , A mixture is formed in the merging portion 11, and when the mixture passes through the Venturi passage 19B, the liquid coating agent is sucked up by the negative pressure to form a mixture with the coating agent, and the mixture with the coating agent is formed at the tip of the connecting part 6B. It will be fired from the department to the outside. This coating mixture contains
It becomes a foam with less volume than the above-mentioned detergent-containing mixture.

FIGS. 5 and 6 show a side view and a sectional view of the foam launching gun with the connecting part 6A removed from the foam launching gun shown in FIGS.

The foam spray gun shown in FIGS. 5 and 6 is capable of discharging pressurized water containing compressed air to perform cleaning with a high-pressure water stream such as a jet jet.

As described above, the foam firing gun of this embodiment has the water passage 9 having the pressurized water intake 7, the air passage 10 having the compressed air intake 8, the pressurized water of the water passage 9 and the air passage 10. Merging portion 11 where the compressed air and the compressed air are mixed together to form a mixture of compressed water and compressed air, and mixture passages 14A, 14 through which the mixture formed in the merging portion 11 flows.
B, 14C, 19A and a liquid detergent supply unit 17A to which the liquid detergent container 21A can be attached, and generate a negative pressure in the mixture passage 19A based on the flow of the mixture in the mixture passage (venturi passage) 19A. A liquid detergent supply unit 17A that sucks the liquid detergent in the liquid detergent container 21A into the mixture passage 19A and mixes it with the mixture, and a liquid detergent suction position in the mixture passage 19A (upstream of the liquid detergent suction position (the opening of the suction passage 20A)). It is provided with a manual valve 15 provided and a foam generating unit 18 provided on the downstream side of the liquid detergent suction position and foaming the mixture containing detergent, and when the manual valve 15 is operated to open, the foam generating unit 18 Foam containing detergent with high stability of the film is discharged to the outside.

Therefore, according to the foam firing gun of the present embodiment, it is possible to fire the foam containing detergent having a large volume, and even if the foam containing detergent is attached to an automobile body or the like and rubbed with a brush or a rag. It will not damage the car body.

Since the manual valve 15 opens and closes the outlet of the mixture passage 14C, the water passage 9 and the air passage 1
The structure can be simplified as compared with a type in which a manual valve is provided for each of the 0s.

Further, since the check valves 12 and 13 are provided in the water passage 9 and the air passage 10, respectively, it is possible to prevent pressurized water from entering the air tube and compressed air from entering the water hose.

Further, the liquid detergent supplying section 17A and the foam generating section 18 are provided in the mixture passages 14A, 14B, 14C and 19A.
Can be attached to and detached from, in other words, since the connecting component 6A is detachably attached to the main body 1,
Foam with detergent and pressurized water with compressed air can be selectively fired.

Further, the foam producing section 18 has a reticulated mass 25 composed of linear bodies entwined in the vertical and horizontal directions, and the mixture containing the detergent passes through the reticulated mass 25. A high detergent foam can be produced.

Further, a liquid coating agent supply section 17B can be attached to and detached from the mixture passage instead of the liquid detergent supply section 17A and the foam generating section 18, and the liquid coating agent supply section 17B is provided with a liquid coating agent container 21B.
Can be attached and the mixture passages 14A, 14B, 14
Mixture passage 19B based on the flow of mixture in C and 19B
When a negative pressure is generated therein, the liquid coating agent in the liquid coating agent container 21B is sucked into the mixture passage 19B and mixed into the mixture, and when the manual valve 15 is opened, the foam containing the liquid coating agent is discharged to the outside. To be done. For this reason, it can also be used as a foam firing gun for liquid coating agents by replacing the connecting parts.

[0036]

EFFECTS OF THE INVENTION According to the foaming gun of the present invention, it is possible to shoot a volume of detergent-containing foam that is rich in volume. Therefore, even if this detergent-containing foam is attached to an automobile body or the like and rubbed with a brush or a cloth, It will not hurt you.

[Brief description of drawings]

FIG. 1 is a side view of a foam firing gun according to one embodiment of the present invention.

FIG. 2 is a sectional view of the foam firing gun.

FIG. 3 is a connection part 6A from the foam firing gun shown in FIGS.
FIG. 7 is a side view of a foam firing gun configured by removing and attaching another connecting part 6B.

FIG. 4 is a cross-sectional view of the foam firing gun.

FIG. 5 is a side view of the foam launching gun with the connecting part 6A removed from the foam launching gun shown in FIGS. 1 and 2;

FIG. 6 is a cross-sectional view of the foam firing gun.

[Explanation of symbols]

7 Pressurized water intake 8 Compressed air intake 9 water passage 10 air passages 11 Confluence section 12, 13 Check valve 14A, 14B, 14C mixture passage 15 Manual valve 17A Liquid detergent supply section 17B Liquid coating agent supply unit 18 Foam generator 19A, 19B Venturi passage (mixture passage) 21A Liquid detergent container 21B Liquid coating agent container 25 mesh

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B60S 3/04 B60S 3/04 C11D 17/04 C11D 17/04 17/08 17/08 F16K 31/44 F16K 31/44 D F term (reference) 3B201 AA31 AB52 BB38 BB88 BB90 BB92 BB94 3D026 AA12 AA56 3H063 AA01 BB50 DA06 GG02 GG06 GG11 4F033 QA09 QB02Y QB03X QB12Y QB15X QC05 QD02 QD16 QE06 QE09 QE19 QE21 QJ03 QJ08 4H003 BA12 BA20 BA21 DA11 FA20

Claims (6)

[Claims] 1. A water passage having a pressurized water intake; an air passage having a compressed air intake; and pressurized water in the water passage and compressed air in the air passage merge to form a mixture of compressed water and compressed air. A merging section, a mixture passage through which the mixture formed in the merging section flows, and a liquid detergent supply section to which a liquid detergent container can be attached, wherein a negative flow is generated in the mixture passage based on the flow of the mixture in the mixture passage. A liquid detergent supply unit that generates pressure to suck up the liquid detergent in the liquid detergent container into the mixture passage and mix it into the mixture, and a manual valve provided upstream of the liquid detergent suction position in the mixture passage. A liquid foaming unit provided downstream of the liquid detergent suction position and foaming the detergent-containing mixture, and when the manual valve is operated to open, Foam firing gun, wherein a high detergent containing foam of the stability are fired outside. 2. The foam firing gun according to claim 1, wherein the manual valve opens and closes the mixture passage. 3. The foam firing gun according to claim 1, wherein the water passage and the air passage are each provided with a check valve. 4. The foam firing gun according to claim 1, wherein the liquid detergent supply unit and the foam generation unit are attachable to and detachable from the mixture passage. . 5. The foam-generating part has a reticulated mass composed of linear bodies entwined in a vertical and horizontal direction, and the mixture containing detergent passes through the reticulated mass.
The foam firing gun according to any one of 3 and 4. 6. A liquid coating agent supply unit can be attached to and detached from the mixture passage instead of the liquid detergent supply unit and the foam generating unit, and the liquid coating agent supply unit is a liquid coating agent container. It is attachable, and a negative pressure is generated in the mixture passage based on the flow of the mixture in the mixture passage to suck up the liquid coating agent in the liquid coating agent container into the mixture passage and mix it with the mixture. The foam containing a liquid coating agent is ejected to the outside when the manual valve is opened.
The foam firing gun according to any one of 2, 3, 4, and 5.