JPS592850Y2 - Cleaning liquid and chemical spray equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cleaning water and chemical solution spraying device that is useful for cleaning and disinfecting kitchen equipment in schools, hospitals, etc.

For example, kitchen areas such as kitchens and galleys are constantly required to be cleaned, and from a sanitary perspective, operations such as disinfection, insecticide, and deodorization are also required.

However, in the past, a cleaning machine and a disinfection machine for killing insects, etc., were separate units, so it was necessary to prepare a cleaning machine and a disinfection machine, respectively.

Therefore, devices that can serve as both a washer and a disinfectant have been proposed, but in such devices, the jetting pressure of cleaning water or the jetting pressure of chemical solution changes depending on regional or demand changes in tap water pressure. Changes in the concentration of the chemical solution occurred, making it impossible to perform effective and economical cleaning and disinfection.

Furthermore, conventional devices of this type have disadvantages such as being inconvenient to carry because of their large size.

The present invention was developed in view of the above, and its first purpose is to provide a chemical solution that can be used as a washing machine, in which the injection of cleaning water and the injection of chemical solutions for insecticidal, sterilizing, disinfecting, etc. can be switched simply by switching the switching valve. It provides a spreading machine.

The second purpose is to provide a cleaning water and chemical solution spraying device that uses tap water pressure as the spraying force for cleaning water and chemical solutions, eliminates the use of machinery such as pumps and compressors, and uses electricity, and is compact and capable of saving power. It is something to do.

A third object is to provide a cleaning water and chemical solution spraying device that sprays a chemical solution with a constant chemical concentration even when the tap water pressure changes.

A fourth object is to provide a cleaning water and chemical spraying device that can be miniaturized to have a porta-pull structure.

The present invention will be explained in detail below based on embodiments shown in the drawings.

Embodiment ■ In Fig. 1, 1 is a board that can be hung on a pillar, wall, etc., and this board 1 has a water supply pipe 3 connected to a water pipe 2, and a water supply pipe 3 connected to this water supply pipe 3. Three-way switching valve 4
, a pressure reducing check valve 5 connected to one outlet 4 of the three-way switching valve 4, an ejector 6 connected in series to the pressure reducing check valve 5, and an outlet of the ejector 6. and a spouting pipe 7 which is connected to the other outlet port 4□ of the three-way switching valve 4 are respectively attached.

Reference numeral 8 denotes a chemical liquid container which is detachably attached to the substrate 1 with a mounting band 9, and this chemical liquid container 8 is provided with two liquid injection tubes 10□, 10□ having different liquid absorption amounts. Both injection tubes 10. ．． 10° exits the chemical solution concentration switching valve 11 and is connected to the ejector 6 described above.

A nozzle pipe 12 is connected to the spouting pipe 7, and a nozzle tip 13 is screwed onto the tip of the nozzle pipe 12.

The above is the structure of this embodiment.Next, its operation will be described.First, when cleaning a predetermined location, the three-way switching valve 4
If the bundle is operated so that the supply water is led out only from the outlet 4□, the supply water in the water supply pipe 3 will be jetted out straight from the nozzle tip 13, and the desired cleaning will be performed.

Next, when it is desired to spray a chemical solution, the bundle of the three-way switching valve 4 is operated so that the supply water is led out from the outlet 4□, and the water from the outlet 4 is transferred to the reduced pressure check valve 5 and the ejector. -6 and is injected from the nozzle tip 13, but due to the action of the ejector 6, water pressure
The liquid inside is sucked up, the chemical liquid is mixed with water, and the mixture is injected from the nozzle tip 13.

The amount of the chemical mixed in the water can be adjusted to, for example, 1150 and 1/250 by switching the chemical concentration switching valve 11.

Further, by keeping the aperture of the nozzle tip 13 and the set pressure of the reduced pressure check valve 5 constant, chemical liquid mixed water with a constant chemical concentration is always injected from the nozzle tip 13 even if the water pressure of the supplied water changes. Furthermore, by using the reduced-pressure check valve 5, the chemical liquid will not flow back into the water supply pipe 3, so it is possible to prevent the danger of the chemical liquid being mixed into drinking water.

Embodiment II FIG. 2 shows a portable type device, in which 14 is a portable storage box and 15 is its opening/closing lid.

The storage box 14 is equipped with a reduced pressure check valve 5 similar to the embodiment described above, an ejector 6 connected in series to the reduced pressure check valve 5, and a chemical container 8.
It is possible to connect either one of liquid injection tubes 101 or 102 having different liquid absorption amounts to the suction port of ejector 6 to 5, and both liquid injection tubes 10t and 1.
A chemical solution concentration switching valve 11 that can close 02 is attached.

Therefore, in this embodiment, if the chemical solution concentration switching valve 11 is operated so that the chemical solution does not flow, the water supplied from the water pipe 2 will pass through the pressure reducing backflow prevention valve 5 and the ejector 6, and only water will flow through the spout pipe. 7, and if the chemical concentration switching valve 11 is set to a desired value, chemical liquid mixed water having a concentration corresponding to the setting is sent out by the action of the ejector 6 as in the previous embodiment.

In this embodiment, the supply water is sent out through the pressure reducing backflow prevention valve 5 for both cleaning and chemical spraying, so the pressure of the supplied water fluctuates both during cleaning and chemical spraying. Even if there is a problem, the injection pressure is always constant, and cleaning water and water mixed with a chemical solution of a constant concentration are sent out.

Further, in this embodiment, the portable storage box 14 includes a reduced pressure backflow prevention valve 5, an ejector 6, a chemical liquid container 8, and a chemical liquid concentration switching valve 1.
1 is attached, so it is easy to carry.
Moreover, work efficiency is improved.

As mentioned above, the present invention is a board that can be hung on walls, pillars, etc.
Alternatively, in a portable storage box, there is a reduced-pressure check valve connected to the water pipe, an ejector connected to the spout of the reduced-pressure check valve, a drug container containing a drug solution, and a container that can be pulled out from the container. A chemical concentration switching valve is provided between the plurality of liquid injection tubes and the suction port of the ejector, and a nozzle tip is connected to the spout of the nigage lid via a nozzle pipe. Therefore, even if the water pressure in the water pipe fluctuates due to the action of the pressure reducing backflow prevention valve, the mixing ratio of water and chemical solution, that is, the concentration, is always constant. Therefore, it is possible to change the concentration magnification simply by operating the switching valve.

In addition, since a pressure reducing backflow prevention valve is used, even if there is a vacuum in the water supply pipe 3 that occurs when the water flow in the water pipe 2 is abruptly stopped, for example, the chemical solution will not flow back toward the water supply pipe 3. The safety of drinking water is maintained.

Furthermore, since the present invention does not use a pump or compressor, the entire device can be made compact, which has great practical benefits such as a portable structure.

[Brief explanation of the drawing]

The drawings all show embodiments of the device according to the present invention, with FIG. 1 being an explanatory diagram showing the first embodiment, and FIG. 2 being an explanatory diagram showing the second embodiment. 1... Board, 2... Water pipe, 3...
... Water supply pipe, 4 ... Three-way switching valve, 41.42
...Outlet port, 5...Reducing pressure check valve,
6... Ejector-17... Output pipe, 8
...Medicine container, 9...Mounting band, 1
0□, 102... Liquid injection tube, 11...
...Chemical solution concentration switching valve, 12...Nozzle pipe,
13... Nozzle tip, 14... Storage box, 15... Opening/closing lid.

Claims (1)

[Scope of utility model registration request] A board that can be hung on a wall, pillar, etc., or a portable storage box contains a reduced-pressure backflow prevention valve connected to a water pipe, an ejector connected to the spout of this reduced-pressure backflow prevention valve, and a chemical solution. A chemical concentration switching valve is provided between the chemical liquid container, one or more injection tubes drawn out from the chemical liquid container, and the suction port of the ejector, and the ejector has a liquid concentration switching valve connected to the suction port of the ejector. A spraying device for cleaning liquid and chemical liquid, characterized in that a nozzle tip is connected through a nozzle pipe.