JPH0143192Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a sprayer, and in particular, in addition to a medicine tank that stores medicine diluted with water, etc., a medicine container that holds a high concentration medicine is provided. This invention relates to a sprayer configured to send a medicine from a medicine container to a medicine tank.

A conventional sprayer consists of a vehicle body that can be driven by wheels, a drug tank that stores a drug diluted with water, etc., and a pump connected to the drug tank via a pipe line that includes a pump. a pressure regulating valve interposed in a spill pipe branched from the secondary side of the pump and connected to the drug tank, and a jet pump interposed in a pipe line connecting the water source and the drug tank. Be prepared. However, when placing a highly concentrated drug in a drug tank and diluting it with water, water can be easily added from the water source using a jet pump, but in order to put a highly concentrated drug into the drug tank, it is difficult to use a bucket. The drug must be dissolved in a container such as a container, and then lifted up to the opening at the top of the drug tank and poured into it. At that time, if the opening of the chemical tank is located at a fairly high position that requires scaffolding, workers may fall or slip their hands when lifting containers such as buckets, and the worker may be exposed to highly concentrated chemicals. There was a risk of exposure.

This idea was devised in view of the above-mentioned circumstances, and its purpose was to have an ejector interposed in the spill pipe branched from the pump and connected to the drug tank.
The secondary side of the ejector is connected to a drug container containing a high-concentration drug by a conduit with an on-off valve, so that the high-concentration drug is safely delivered from the drug container to the drug tank. An object of the present invention is to provide a drug inhalation device using a sprayer that can be used as a sprayer.

This invention will be explained in detail below based on the accompanying drawings.

Figures 1 and 2 are side views of the spreader according to this invention and its piping. A drug tank 4 containing a drug diluted with water or the like is provided in the center thereof, and a plurality of spray nozzles attached to a spray pipe 5 bent in an arc shape are provided in the rear part. 6 is arranged. A blower 7 that can scatter the medicine sprayed from the spray nozzle 6 is disposed behind the spray nozzle 6 .

The piping diagram of this sprayer is shown in FIG.
0, and is also connected to a primary side port 15 of a pump 14, which is a pumping means, by a conduit 13 via a strainer 12 disposed within the drug tank 4. The secondary port 16 of the pump 14 is connected to a conduit 19 for distributing liquid for operating the jet pump 9 via a conduit 17 and a conduit 2 to the spray nozzle 6.
0 are connected so as to branch through a three-way connector 18. In addition, the primary side port 2 of the pressure regulating valve 22
3 is connected to the pipe 17 by a pipe 24, and the other end is connected to the spill port 25, which is the secondary side of the pressure regulating valve 22, into the drug tank 4, and the spill pipe 27 is connected to the pipe 17 through the ejector 26 in the middle. are concatenated. One end of a pipe 30 in which an on-off valve 29 is interposed is connected to the boat 28 on the secondary side of the ejector 26.
The other end is a drug container 3 in which a high concentration drug is stored.
1.

Further, as shown in FIG. 3, the ejector 26 described above is equipped with a nozzle body 34 having an O-ring 33 attached to one end circumferential side within an ejector body 32 in which a port 28 is formed on the secondary side of the ejector 26. and is connected to the end of the nozzle body 34 by a joint nut 36 via a skin packing 35.
is fixed to the end of the ejector body 32 by the coupling nut 36. And nozzle body 3
The tip opening 34' of the ejector body 32 is directed toward the drug tank 4 via a spill pipe 27 connected to the tip opening 38 of the ejector body 32. Further, the base end opening 39 of the joint member 37 is connected to the spill port 25 which is the secondary side of the pressure regulating valve 22 via the spill pipe 27.

Since the sprayer according to this invention is as described above, when storing the diluted medicine in the medicine tank 4, the water source 10 is first pumped by the jet pump 9.
Water is introduced into the drug tank 4 through the pipe 11, and then the branch direction of the pipes 19 and 20 is closed by the three-way pot 18 and the spray pot 40, and the pump 1
The water discharged from 4 forms water flows in the pipes 17 and 24 and the spill pipe 27 as indicated by arrows. Next, by opening the on-off valve 29, the high-concentration drug previously stored in the drug container 31 is mixed into the water stream by the suction action of the ejector 26, and is sent into the drug tank 4. At the same time, the diluted medicines are mixed and stored in the medicine tank 4. Note that injecting a high-concentration drug into the drug container 31 requires opening the lid 31' of the container 31, since the drug container 31 can be disposed relatively below the vehicle body 1. Therefore, it is possible to easily inject from above.

The medicine stored in the medicine tank 4 is
By setting the three-way pot 18 so that water flows through the pipes 17 and 20 via the three-way pot 18, the water is sent to the spray nozzle 6 by operating the spray pot 40, and a chemical spraying operation is performed.

Since this device is as described above, when putting a highly concentrated drug into the drug container 31, water is first introduced into the drug tank 4 from the water source 10 via the pipe line 11 using the jet pump 9, and then ni Mikata Kotuku 1
By closing the branching direction of the pipes 19 and 20 with the spray tip 8 and the spray tip 40, water flows toward the spill pipe 27, forming a water flow shown by the arrow in the pipes 17, 24 and the spill pipe 27. Next, by opening the on-off valve 29, the high concentration medicine in the medicine container 31 is mixed into the water flow by the suction action of the ejector 26, and is sent into the medicine tank 4 and mixed at the same time. A diluted medicine is stored in the medicine tank 4. Note that injecting a high-concentration drug into the drug container 31 is possible because the drug container 31 can be disposed relatively below the vehicle body 1.
By opening the lid 31' of No. 1, it is possible to easily inject from above. Also, drug container 3
1 can also be used by placing it on the ground using a bucket or the like.

The medicine stored in the medicine tank 4 is
By opening the three-way stop 18 in the direction of the branch pipe 20, a water flow shown by the arrow is formed in the pipes 17 and 20, and by opening the spray stop, it is possible to spray from the spray nozzle 6.

As described above, this invention eliminates the need for unstable scaffolding and the risk of tipping over when placing a high-concentration drug into the drug container 31, since the drug container is located at a low position. , there is no risk of the worker being exposed to highly concentrated chemicals, and since there is a small amount of medicine in the medicine tank, the concentrated medicine can be pumped from the medicine container to the medicine tank and then pumped from the water source using a jet pump. The chemical spray liquid can be mixed and diluted by water supply, and by replenishing the concentrated chemical into the chemical container, a reserve chemical for the next spraying is retained, allowing the series of chemical spraying and replenishment operations to be carried out smoothly. I can do it. Of course, it is also possible to replenish water to the drug tank and feed the concentrated drug at the same time. In addition, since the ejector is installed inside the spill pipe, there is no need to install a separate high-pressure pipe for the ejector, making it possible to manufacture the product at a low cost.In addition, since the ejector is installed inside the spill water pipe, it is possible to manufacture the ejector at low cost.
It has effects such as being useful for energy saving.

[Brief explanation of the drawing]

1 and 2 are a side view and a piping diagram of the spreader according to this invention, and FIG. 3 is an enlarged sectional view of the ejector shown in FIG. 2. In the drawings, 1...vehicle body, 2...
Wheels, 4...Medical tank, 6...Spray nozzle, 1
4... Pump means (pump), 22... Pressure regulating valve,
27... spill pipe, 26... ejector, 29... opening/closing valve, 31... medicine container.

Claims (1)

[Scope of utility model registration request] A vehicle body capable of running on wheels includes a drug tank containing a drug to be diluted with water or the like, an inhaler for injecting water from a water source into the drug tank, and a pressure feeder for feeding the drug in the drug tank to a spray nozzle. In a sprayer provided with a pump means and a pressure regulating valve in a pipe branched from a secondary side of the pump means and connected to the drug tank, an ejector is disposed on the secondary side of the pressure regulating valve. and is connected to a container containing the high-concentration drug through a conduit with an on-off valve interposed on the secondary side of the ejector, and is capable of feeding the drug in the container to the drug tank. Drug inhalation device.