JPH0425269Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a cleaner for cars, etc., and in particular, to a cleaner using a washing machine for cars, etc.

[Prior art and its problems]

Car wash machines used at gas stations etc.
Equipped with a high-pressure water pump, the vehicle can be washed by spraying high-pressure water from a nozzle. Furthermore, it is now possible to apply detergent or wax by mixing detergent or wax liquid into high-pressure water.

Additionally, gas stations and the like are equipped with electric or air cleaners for cleaning the interiors of cars, separate from the above-mentioned cleaning machines, for the convenience of users. However, installing two machines, a washing machine and a cleaner, in the same place as described above requires a large space and is also disadvantageous from an economic point of view.

In order to solve these problems, an apparatus having both a cleaning function and a cleaner function has been proposed, for example, in Japanese Utility Model Application Publication No. 53-145378.

This conventional technology is configured to operate an ejector-type vacuum cleaner using a switching valve for cleaning water, but in the conventional technology, the ejector is simply connected to one end of the cleaner pipe (suction pipe). (For example, the structure of the ejector applied in the liquid injection and recovery device disclosed in Japanese Patent Publication No. 46-28581), cleaning water was used to suck out dirt and other substances inside the car along with air. It was not possible to exert sufficient effect as a cleaner.

In other words, in the configuration of such a normal ejector, the negative pressure generated by the washing water injection nozzle usually becomes a swirling flow or turbulent flow unless special rectifying fins are installed, and this flow is accompanied by thread waste, etc. When long objects or objects with a relatively large area, such as small pieces of paper, are sucked, they may become entangled with the injection nozzle protruding into the suction pipe, reducing suction efficiency or causing damage to the suction pipe. There is a drawback that clogging occurs, and therefore, there is a problem in applying a normal ejector for sucking liquid as it is.

[Means for solving problems]

This invention was proposed in view of the above-mentioned conventional circumstances, and uses a high-pressure pump to spray washing water from an injection nozzle to wash a car, etc., and to use the washing water via a switching valve. This is a car cleaner that also has a cleaning function using a suction means that generates negative pressure, but the suction means that uses the washing water has been improved to have a structure suitable for suctioning dirt, etc. The purpose is to achieve a cleaner effect.

In order to achieve this purpose, the cleaner for cars, etc. according to the present invention uses a high-pressure pump to spray washing water from an injection nozzle to wash cars, etc., and also uses the washing water via a switching valve to clean the car, etc. In a cleaner for a car, etc., which has a cleaner function using a suction means that generates negative pressure, the suction means:
an ejector connected to the switching valve is provided at the upper end of the ejector pipe with its ejector facing downward, and at the upper end of the ejector pipe, It is constructed by opening a conduit above the position of the ejection port of the ejector and perpendicular to the axial direction of the discharge pipe, and one end of the suction pipe is connected to the conduit, and the suction pipe The solution is that a suction nozzle is connected to the other end.

[Effect]

In this configuration, if the switching valve is opened to the injection nozzle side, the injection nozzle can be used to wash cars, etc., and if the switching valve is opened to the ejector side, high-pressure water can be flowed from the ejector. When the suction pipe is ejected, the tip side of the suction pipe is under negative pressure, and suction force is applied to the suction nozzle, which can be used as a cleaner to suck up dirt and the like from inside the vehicle.

When used as the above-mentioned cleaner, in the present invention, an ejector connected to the switching valve is provided at the upper end of the discharge pipe with the spout facing downward; and a conduit opening perpendicular to the axial direction of the discharge pipe above the position of the ejector of the ejector, whereby the cleaning water injected from the ejector of the ejector is removed. The negative pressure generated at the rear of the spout of the ejector acts as static pressure on a conduit opened perpendicularly to the axial direction of the discharge pipe, and is sucked from this conduit to the suction nozzle. Even if the airflow becomes turbulent or swirling along the way, when it bends at right angles from the conduit and enters the discharge pipe, the turbulence or swirling flow subsides and the air flows downward through the discharge pipe as a rectified flow. The risk of getting entangled with the ejector on the way is greatly reduced, and since it uses a suction means that suctions air with cleaning water, it exhibits an excellent suction effect for suctioning dust and the like.

〔Example〕

FIG. 1 shows an embodiment of this invention. A high-pressure pump 10 is attached to the bottom of a machine frame 13 configured to be movable using rollers 14, and a discharge 10a of the high-pressure pump 10 is connected to the machine frame 13.
Input port 7 of switching valve 7 installed at the upper front
i and connected by pipe 1. One discharge port 7a of this switching valve 7 opens to an injection nozzle connection port 31 via a pipe 3, and an injection nozzle 11 is further connected to the injection nozzle connection port 31 via a high-pressure rubber hose 4. There is. With the above, the part conventionally used as a washing machine has been constructed.

Discharge pipes 8a are installed vertically at the rear of the machine frame 13, and an ejector 12 is installed at the upper end thereof with the ejector facing downward. 7b. Furthermore, a suction pipe 8b that opens at the front of the machine frame 13 is connected to the vicinity of the upper end of the discharge pipe 8a, and this opening 51
A suction nozzle 9 is connected to via a flexible hose 5. Further, the rear end of the discharge pipe 8b opens at the bottom of the machine frame 13, and this opening 81 is led to a drainage ditch or the like via the drainage hose 6.

To summarize the embodiment of the present invention, a high-pressure pump 10 is used to inject washing water from an injection nozzle 11 to wash a car, etc., and a negative pressure is generated by the washing water via a switching valve 7. In a cleaner for a car or the like that has a cleaner function using a suction means, the suction means is provided with a discharge pipe 8a with its axial direction facing up and down, and an ejector 12 connected to the switching valve. A spout is provided at the upper end of the discharge pipe 8a facing downward, and is perpendicular to the axial direction of the discharge pipe 8a above the position of the spout of the ejector 12 at the upper end of the discharge pipe 8a. like conduit 8
One end of a suction pipe 8b is connected to the conduit 8c, and a suction nozzle 9 is connected to the other end of the suction pipe 8b.

With the above configuration, when the switching valve 7 is first opened toward the injection nozzle 11, high-pressure water is ejected from the injection nozzle 11, and the machine can be used as a normal car washer. At this time, it goes without saying that detergent or waxing can be applied by mixing detergent or waxing liquid into the high-pressure water. Next, when the switching valve 7 is opened to the ejector 12 side, high pressure water is jetted out from the ejector 12 within the discharge pipe 8a, and the suction pipe 8
The b side becomes negative pressure, and a strong suction force is generated in the suction nozzle 9 attached to the tip of the suction pipe 8b. This suction power can be used to suck out sand and dirt inside the vehicle. The dust and sand sucked into the suction pipe 8b are transferred to the discharge pipe 8 along with high pressure water jetted from the ejector 12.
b and is discharged from the discharge pipe 6.

[Effect of idea]

As explained above, this invention uses the washing water used to wash cars, etc. using a high-pressure pump to operate the suction means applied to the ejector. By improving the structure to be suitable for suctioning dirt, etc., it is possible to minimize the amount of dirt, etc. that gets entangled with the ejector, and prevents a drop in suction efficiency due to this, as well as preventing clogging of the discharge pipe. As a result, a remarkable effect has been achieved in which not only the original cleaning function but also a sufficient cleaner function can be exhibited.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of this invention. In the figure, 7... switching valve, 8... suction pipe,
9... Suction nozzle, 10... High pressure pump, 12...
...Egiector.

Claims (1)

[Scope of utility model registration request] A cleaner function is provided by using a high-pressure pump 10 to inject washing water from an injection nozzle 11 to wash a car, etc., and using a suction means to generate negative pressure with the washing water via a switching valve 7. In a cleaner for a car, etc., the suction means is provided with a discharge pipe 8a with its axial direction facing up and down,
an ejector 12 connected to the switching valve;
is provided at the upper end of the discharge pipe 8a with the spout facing downward, and at the upper end of the discharge pipe 8a,
It is constructed by opening a conduit 8c perpendicular to the axial direction of the discharge pipe 8a above the position of the ejection port of the ejector 12, and one end of the suction pipe 8b is connected to the conduit 8c. At the same time, a suction nozzle 9 is connected to the other end of the suction pipe 8b.