JPS5827802Y2 - Stirring device for chemical tank in power sprayer - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a chemical liquid stirring device in a chemical liquid tank in a power sprayer.

The purpose of the present invention is to provide an agitation device for a chemical liquid tank that can safely and effectively stir the chemical liquid in the tank by using the leftover liquid from the pump in a power sprayer. The illustrated embodiment will be described as follows.

In the figure, 1 is the power sprayer, 2 is the liquid suction pipe of the pump, 3 is the same liquid sending pipe, 4 is the same pressure regulating valve, 5 is the same total liquid return pipe, 6 is the chemical tank, and 7 is the liquid suction pipe 2. A liquid suction port 8 at the bottom of the tank to be connected, a strainer 19 installed in the tank above the liquid suction lower, is a liquid guide pipe whose base is connected to the total liquid return pipe 5 and introduced into the tank 6. , 10 is a liquid jet pipe screwed into the upper end of the liquid guide pipe 9, 11 is a liquid chamber of the liquid jet pipe which is connected to the liquid pipe 9, 12 is a jet hole which is connected to the liquid chamber 11, and 13 is a liquid jet pipe which is connected to the liquid pipe 9. An overflow valve that closes the upper opening of the liquid chamber 11; 14 is an overflow valve 13;
15 is an overflow valve presser installed in the valve chamber 14; 16 is an overflow hole that communicates the valve chamber 14 with the tank 6;
Reference numeral 7 denotes a guide cylinder for the jet liquid ejected from the nozzle hole 12, and an opening 18 is provided at the base of the cylinder for sucking the chemical liquid in the tank.

Now, when the power sprayer 1 is operated and the pump sucks the chemical liquid in the chemical liquid tank 6 through the liquid suction pipe 2, and the liquid is fed to the spraying section through the liquid supply pipe 3, all the liquid is passed through the pressure regulating valve 4 and the return pipe 5. The remaining liquid from the pump that is returned to the tank 6 is transferred to the liquid guide pipe 9.
The liquid enters the liquid chamber 11 of the jet nozzle 10 and is ejected from the nozzle hole 12 into the medicinal liquid in the tank 6, and the ejected liquid flow mixes and stirs the medicinal liquid in the tank.However, in this case, the nozzle hole 12 is clogged. When the amount of remaining liquid returned to the tank is large and the pressure inside the total liquid return pipe 5 rises, the overflow valve 13 is pushed open against the bullet 15, and the remaining liquid is returned to the tank 6 through the overflow hole 16. This prevents damage caused by an abnormal increase in pump pressure.

As described above, the present invention involves introducing a liquid conduit tube whose base is connected to the pump's total liquid return tube into a chemical liquid tank, attaching a liquid jet pipe to the tip of the liquid conduit tube, and supplying a liquid jet that communicates with the liquid conduit tube. Since the beak tube liquid chamber is connected to the inside of the tank via an overflow valve, it is possible to effectively mix and stir the medicinal liquid in the tank using the surplus liquid fed by the pump that is returned to the medicinal liquid tank. If the pressure in the total liquid return pipe increases due to clogging of the nozzle holes or a large amount of liquid returning to the pump, the overflow valve opens and releases the remaining liquid into the tank, preventing damage to the pump and safely draining the tank. It is possible to mix and stir the chemical solution inside.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, with FIG. 1 being a longitudinal sectional side view and FIG. 2 being an enlarged sectional view of a part of the chemical tank. 1-power sprayer, 5-all liquid return pipe, 6-chemical tank, 9 liquid guide pipe, 10-spray beak pipe, 11-liquid chamber, 13-overflow valve, 1
4-valve chamber, 16-overflow hole.

Claims (1)

[Scope of utility model registration request] Introduce the liquid conduit tube whose base is connected to the pump's total liquid return tube into the chemical tank, attach the liquid jet nozzle to its tip, and open the liquid chamber of the liquid jet nozzle that communicates with the liquid conduit. An agitation device for a chemical liquid tank in a power sprayer, characterized in that the device communicates with the inside of the tank via an overflow valve.