JPS5827792Y2 - Chemical sprayer - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a drug dispersion machine having a drug tank and a ventilation pipe, in which the drug in the drug tank is discharged while being pressurized.

In conventional chemical spraying machines, there are various types of devices that are equipped with a device that pressurizes the chemical in the chemical tank and a mechanism that discharges the chemical, but all of these devices are provided separately, making the device complicated. However, the disadvantage is that handling, disassembly, and assembly are troublesome.

This idea simplified the device by installing a shutter mechanism and a pressurizing mechanism in the discharge pipe, and was characterized by using the discharge pipe as a shutter mechanism and detachably installing a pressure plate at the discharge port of the discharge pipe. There is.

Next, this will be explained in more detail based on the drawings.

Figure 1 shows an example of the chemical sprayer of this invention.
It has a drug tank 1 and a ventilation pipe 2, and the ventilation pipe 2 is equipped with a ventilator (not shown) to send pressurized air. A discharge pipe 6 is provided below the drug tank 1 to supply pressurized air.
The discharge pipe 6 has a mechanism that discharges pressurized air from the discharge port of the pipe 6, pressurizes the medicine in the medicine tank 1, and guides it into the ventilation pipe 2. The pressure plate 8 is moved in the direction of the arrow in the figure to act as a shutter for the drug tank 1, and the pressure plate 8 is fixed with screws 9 just before the discharge lower of the discharge pipe 6, so that it can be attached and detached.

In such a device, a part of the air flowing through the ventilation pipe 2 enters the pressure elbow 3, is pressurized, and is guided to the discharge pipe 6 via the bellows 4 and the shutter elbow 5, and the discharge pipe 6 is connected to the drug tank 1. When the shutter is closed (see FIG. 1), the pressurized air flow hits the pressure plate 8 from the discharge lower, flows in the direction of the arrow in the figure, and is discharged into the ventilation pipe 2.

When the shutter of the discharge pipe 6 is open (see Figure 2), the air flow discharged from the discharge lower hits the pressure plate 8, flows in the direction of the arrow in the figure, enters the drug tank 1, and releases the medicine. Pressurize and stir this to smoothly distribute the medicine into ventilation pipe 2.
It sends it inside.

The shape of the pressure plate 8 is preferably a slightly concave or curved plate rather than a flat plate so that the air discharged from the discharge lower hits the plate and flows easily in the direction of the arrow in FIG. 3A and the opening.

Since this pressure plate 8 is removably attached with screws 9, it can be easily replaced.

Further, the pressure plate 8 is provided with a small hole, and a part of the air that hits the hole is allowed to pass through, thereby making it possible to relieve the pressure applied to the pressure plate 8.

In the figure, 10 indicates a backing, and 11 indicates an O-ring.

As explained above, according to this invention, the discharge pipe provided below the drug tank is used as the shutter mechanism of this tank, and a pressurizing plate is removably provided at the discharge port of the discharge pipe.
When the shutter mechanism opens, this pressure plate pressurizes the inside of the drug tank, and the pressure is applied at the same time as the shutter is operated.Furthermore, this pressure plate is removable and can be easily replaced. It also has practical effects.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing an example of the chemical sprayer of this invention, Fig. 2 is an explanatory diagram showing the case where the shutter mechanism of the discharge pipe of Fig. 1 is opened, and Fig. 3 A and the mouth are according to this invention. It is an explanatory view showing other examples of the pressure plate used.

Claims (1)

[Scope of utility model registration request] In a chemical spraying machine that has a chemical tank and a ventilation pipe, and has a discharge pipe configured to send pressurized air from the ventilation pipe below the chemical tank and discharge it together with the medicine, the jet pipe is used as a shutter mechanism, and the discharge pipe A chemical spraying machine with a removable pressurizing plate just in front of the discharge port.