JP3176965U - Air cleaner with cleaning solution - Google Patents

Abstract

In an air cleaner that injects cleaning liquid together with high-pressure air, it takes time for the cleaning liquid to return to the tank when high-pressure air injection is stopped, and to be mixed into the high-pressure air when injection is started again. Provide an air cleaner that can prevent
When a trigger 3 of an air cleaner is throttled, high pressure air is injected from a nozzle 13 through a high pressure air passage 4, a second high pressure air passage 7, and a high pressure air injection passage 8. At this time, the second cleaning liquid passage 11 faces the high-pressure air injection path 8 and is mixed into the high-pressure air by the suction effect of the high-pressure air passing therethrough and is ejected from the nozzle 13. Therefore, when the nozzle 13 is directed toward the object to be cleaned and the trigger 3 is squeezed, the cleaning liquid can be immediately cleaned. In this case, the object to be cleaned may be an original engine, an industrial part, a vehicle, a furniture fixture, clothes, shoes or the like. Furthermore, more complete decontamination can be achieved if it is used for the recent decontamination of radioactivity.
[Selection] Figure 1

Description

  The present invention relates to an air cleaner mixed with a cleaning liquid, generally called an engine cleaner.

  An air cleaner cleans an object by jetting high-pressure air with a gun, and generally only jets high-pressure air. However, as shown in Patent Document 1 below, there is a type in which a flow path of high-pressure air and liquid is formed in a gun, liquid is sucked with high-pressure air, and air mixed with liquid is ejected. However, when the gun injection is stopped, the cleaning liquid flows back and returns to the tank in the portion where the flow path filled with the cleaning liquid is above the tank. For this reason, when the gun is sprayed again, there is a time lag until the cleaning liquid is mixed into the high-pressure air.

  Originally, the cleaning solution was simply a pipe connecting the tank and the gun, so this was unavoidable and the time lag was small, so it was not a problem. However, there is a great problem when it is necessary to perform cleaning at the same time as the injection of high-pressure air, that is, when strict cleaning is required in which the cleaning liquid must be mixed into the high-pressure air.

Japanese Patent Laid-Open No. 2001-300442

  The problem to be solved by the present invention is to be able to inject cleaning liquid at the same time as injection of high-pressure air, that is, to enable cleaning in a strict sense.

  Under the above-described problems, the present invention provides a flow of the cleaning liquid in the air cleaner mixed with the cleaning liquid, wherein the cleaning liquid stored in the tank is sucked with the high-pressure air supplied from the high-pressure air source and ejected by the gun. A cleaning liquid-mixed air cleaner is provided in which a check valve for preventing the cleaning liquid from flowing back to the tank is provided, and the check valve according to claim 2 is provided with an inlet for the cleaning liquid of the gun. A means attached to the tank and connected to the tank by piping is provided, and the means for covering the periphery of the cleaning liquid piping spirally with a hose connected to the high-pressure air inlet of the gun is provided.

  According to the first aspect of the invention, not only the backflow of the cleaning liquid in the gun but also the cleaning liquid in the pipe does not flow back due to the negative pressure in the pipe due to the presence of the check valve. Accordingly, the cleaning liquid is also injected at the same time as the high-pressure air is injected. According to the second aspect of the present invention, the check valve can be easily mounted and piping can be easily performed. According to the third aspect of the present invention, the piping of the cleaning liquid is protected by the high-pressure air hose, and there is no damage and a thin one is sufficient.

It is a partial cross section side view of a gun.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partial cross-sectional side view of a gun constituting an air cleaner mixed with a cleaning liquid according to the present invention. As is well known, the gun has a trigger 3 that rotates about a shaft 2 below a main body 1. It is what you have. In this case, the main body 1 has a high-pressure air passage 4 and a cleaning liquid passage 5.

  An opening / closing valve mechanism 6 operated by the trigger 3 is provided in the middle of the high-pressure air passage 4, thereby controlling the opening / closing of the high-pressure air. When the on-off valve mechanism 6 is opened, it is supplied to a high-pressure air injection passage 8 extending to the front end side of the main body 1 through a second high-pressure air passage 7 provided on the center side. By the way, this on-off valve mechanism 6 is also well known. In short, when the trigger 3 is squeezed, the spool 9 is pushed (resisted by a spring 10), and the high-pressure air passage 4 and the second high-pressure air passage 7 are connected. It communicates.

  The cleaning liquid passage 5 communicates with a second cleaning liquid passage 11 communicating with the second cleaning liquid passage 5 via a flow rate adjusting valve 12. The second cleaning liquid passage 11 is provided on the outer peripheral side of the high-pressure air injection passage 8 and has a nozzle 13 at the tip. It is supposed to join at. Further, the high-pressure air passage 4 is connected to a high-pressure air supply source (not shown) such as a compressor by a hose 14, and a pipe 15 such as a vinyl tube is attached to the cleaning liquid passage 5 to filter a tank (not shown). The attached mouthpiece 16 is immersed.

  In the present invention, a check valve 17 is provided in the flow path of the cleaning liquid path 5 to prevent the cleaning liquid from flowing back into the tank. The check valve 17 may be provided anywhere, but it is easy to provide the check valve 17 at the cleaning liquid inlet formed in the gun body 1 and connect the tank and the tank through the pipe 15. Thereby, when the injection is stopped, the cleaning liquid does not move to the tank side from the check valve 17 even if the cleaning liquid tank is at a low position. Specifically, the cleaning liquid existing on the downstream side (nozzle 13 side) of the check valve 17 is literally blocked, and the cleaning liquid existing on the upstream side (tank side) does not flow backward due to the negative pressure in the cleaning liquid passage 5. .

  In addition, it is preferable to protect the pipe 15 by winding the hose 14 around the pipe 15 in a spiral shape. If it carries out like this, the piping 15 can be protected with the hose 14, and the piping 15 does not touch a thing directly and will be damaged. Accordingly, the pipe 15 can be formed of a thin vinyl tube.

  As described above, when the trigger 3 is throttled, high-pressure air is injected from the nozzle 13 through the high-pressure air passage 4, the second high-pressure air passage 7, and the high-pressure air injection passage 8. At this time, the second cleaning liquid passage 11 faces the high-pressure air injection path 8 and is mixed into the high-pressure air by the suction effect of the high-pressure air passing therethrough and is ejected from the nozzle 13. Therefore, when the nozzle 13 is directed toward the object to be cleaned and the trigger 3 is squeezed, the cleaning liquid can be immediately cleaned. In this case, the object to be cleaned may be an original engine, an industrial part, a vehicle, a furniture fixture, clothes, shoes or the like. Furthermore, more complete decontamination can be achieved if it is used for the recent decontamination of radioactivity.

DESCRIPTION OF SYMBOLS 1 Main body 2 Axis 3 Trigger 4 High pressure air passage 5 Cleaning liquid passage 6 On-off valve mechanism 7 Second high pressure air passage 8 High pressure air injection path 9 Spool 10 Spring 11 Second cleaning liquid passage 12 Flow rate adjustment valve 13 Nozzle 14 Hose 15 Piping 16 Suction Port 17 Check valve

Claims (3)

  In the air cleaner mixed with cleaning liquid that sucks cleaning liquid stored in the tank with high-pressure air supplied from a high-pressure air source and ejects it with a gun, a check valve is provided in the cleaning liquid flow path to prevent the cleaning liquid from flowing back to the tank. An air cleaner mixed with a cleaning liquid.   The air cleaner mixed with cleaning liquid according to claim 1, wherein a check valve is attached to the cleaning liquid inlet of the gun and communicated with the tank by piping.   The air cleaner mixed with the cleaning liquid according to claim 1 or 2, wherein the cleaning liquid pipe is spirally covered with a hose connected to the high-pressure air inlet of the gun.