JPS5832759Y2 - Boujiyokinokenyouyakuzai Tank - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of a dual-purpose chemical tank that allows the pest control machine to be easily changed to use a powder agent or a liquid agent.

Next, the present invention will be explained in detail based on an embodiment of a backpack-powered pest control machine shown in the drawings.

The backpack powered pest control machine according to the embodiment has a blower 3 integrated with a motor (not shown) mounted on a backpack rack 1, and an upper part 4 of the housing of the blower 3.
A chemical tank 5 is integrally fixed with a fastening fitting 6 on a chemical tank mounting seat provided in the air blower 3, and it can be used to supply powder to the discharge port 10 of the blower 3 to function as a duster, or to supply liquid. It is used as a mist machine for both powder and liquid.

A powder mixing chamber 9 is provided inside the upper part 4 of the blower housing and forms a boundary with the drug tank 5, with a powder supply device 7 interposed therebetween.

The supply device 7 is equipped with a plate-shaped slit type metering valve 11, which can be remotely controlled from outside the machine via a swinging rod 8.

A portion of the pressurized air from the blower 3 is supplied to the mixing chamber 9 through a conduit 17.
The powder is guided through the slit of the metering valve 11 and mixed with the powder supplied from the tank 5, and then discharged through the discharge conduit 18 to the vicinity of the outlet 10 of the blower, and further mixed with the discharge air of the blower 3. and released into the atmosphere.

The metering valve 11 has its periphery airtightly held between the upper edge of the mixing chamber 9 and the bottom edge 5' of the tank via a backing 12. In the embodiment, the backing 12 is formed into a ring having a U-shaped cross section. The metering valve 11 is fitted around the circumferential edge of the metering valve 11 with tightness, so that it is always easy to handle as an integral unit, and it is easy to replace the backing material due to aging.

On the upper surface side of the backing 12, facing the inner frame of the metering valve 11, a water nectar seat 13 having an appropriate width is provided.

Further, a stud 14 is installed on the upper surface of the metering valve 11, and a sealing plate 15 can be inserted through the stud 14 and tightly fastened to the seat 13 with a nut 16.

When the sealing plate 15 is fastened in this way, the inside of the tank 5 and the powder supply device 7 are completely isolated.

As a result, even if the liquid agent is put into the tank 5, it will not have any effect on the powder-based device.

Therefore, the same tank can also be used for liquid agents.

The tank 5 is previously formed airtight and is provided with an air intake pipe 19 for pressurizing the liquid agent, through which a portion of the pressurized air from the blower 3 can be introduced.

Further, a piping device 20 for sending out the pressurized liquid is provided in the tank 5, and the end of the device 20 is guided to the top of the discharge pipe of the blower 3 and discharged into the high-speed airflow discharged from the blower 3. It can be used as a so-called mist machine that atomizes and sprays liquid into the atmosphere.

As described above, the present invention allows a single drug tank 5 to be used for both liquid and powder medicines by allowing the sealing plate 15 to be easily attached and removed from the bottom of the tank 5 from above.

In particular, since the sealing plate 15 is inserted into the stud 14 from above and is press-fixed to the watertight seat 13, positional displacement does not occur and the bottom of the tank can be reliably sealed.

[Brief explanation of the drawing]

Fig. 1 is an overall explanatory diagram of a backpack power extermination machine as an embodiment of the present invention, Fig. 2 is a vertical sectional view of the main part of Fig. 1, Fig. 3 is a vertical sectional side view of Fig. 2, and Fig. 4 is a longitudinal sectional view of the main part of Fig. 1. It is a perspective view of the metering valve of a powder supply device. 4... Upper part of the blower housing, 5... Chemical tank, 5'... Tank bottom edge, 7... Powder supply device, 11...・・Plate slit type metering valve,
12...Backing, 13...Watertight seat, 14...Stud, 15...Sealing plate.

Claims (1)

[Scope of utility model registration request] In a powder-liquid device for a chemical tank 5 in a backpack-powered pest control machine, a backing 12 is provided on both upper and lower sides of the periphery of the plate-shaped slit-type metering valve 11 of the powder supply device 7 disposed inside the upper part 4 of the blower housing. At the same time, a stud 1 is attached to the upper surface of the metering valve 11 so that it is airtightly sandwiched between the drug tank mounting seat 4' of the upper part 4 of the blower housing and the bottom edge 5' of the drug tank.
4, the inner peripheral part of the upper backing 12 is used as a watertight seat part 13, and a sealing plate 15 inserted into the stud can be press-fixed to the seat part 13.