JPH0446906Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a duster tank sealing device that is capable of sealing to prevent the medicine from spouting out from the upper opening side of the tank loaded with powdered medicine and subjected to internal pressure. Regarding.

[Prior Art] Conventionally, the upper opening of a tank loaded with a powdered drug was removably fitted to the outer periphery of the lower opening of an umbrella-shaped cap that was connected in the middle of the air pipe extending from the air blower. The duster has a sealing structure in which a sealing material is fitted only between the lower opening of the cap and the upper opening of the tank.

[Problem that the invention aims to solve] However, in order to make the tank lightweight and have a strong structure, blow molding it using resin material,
A parting line will be formed on the inner circumferential surface of the upper opening of the tank, and simply fitting a sealing material as in the conventional type described above will inevitably create a gap, which will prevent chemicals from leaking from inside where internal pressure is applied. The problem was that it would gush out.

[Means for solving the problem] The present invention solves such problems and makes it possible to connect blow-molded tanks with good sealing.Therefore, the tank is made of resin and blow-molded. A lower half of a cylindrical rubber ring is fitted between the upper opening of the tank and the outer periphery of the lower opening of the cap, and the upper half of the rubber ring is bent outward to open the upper opening of the tank. The upper half part side outer peripheral surface is tightened with a tightening band.

[Function] Therefore, the tank can be made lightweight and have a robust structure.A rubber ring is bent and fitted from the inner circumferential surface to the outer circumferential surface of the upper opening of the tank, and a tightening band is fitted from the outer circumference. When tightened, the gap is completely closed and the seal is reliably sealed to prevent the medicine from spewing out, and even if the tank is attached or removed, it can be sealed easily.

[Example] Next, the embodiment shown in the drawings will be described.

FIG. 2 shows a plan view of a portable duster, in which a grip 10 is extended above an engine 9 and a blower 1 which are arranged side by side with a stand 8 installed vertically at the bottom. At the same time, a handle 12 is extended from the middle of the air pipe 2 to open the air pipe 2, and a handle 12 is extended from the middle of the air pipe 2. The shoulder strap 13 is configured to be portable by connecting both ends thereof.

The upper part of a cap 3 having a short cylindrical lower opening 3a on the outer periphery of the lower end side is fixedly connected to the lower part of the small-diameter constriction part 2a through a cap 14, and from inside the cap 14 on the upstream side of the air flow. is a long pressurizing pipe 16 having a plurality of small blowholes 15 on the outer periphery of the lower end side.
A shutter 19, which can be operated by an external metering lever 18, is rotatably mounted between the discharge hole 17 formed on the upstream side of the mouthpiece 14 and the upper end opening of the pressure pipe 16. Build and compose.

Reference numeral 4 denotes a tank blow-molded from a resin material, and a short cylindrical upper opening 4a that can fit into the outer periphery of the lower opening 3a of the cap 3 is formed in the upper part of the tank 4 into which powdered medicine is loaded. cap 3 and tank 4
A cylindrical rubber ring 5 is interposed between them, and the lower half 5a of the rubber ring 5 is fitted between the outer periphery of the lower opening 3a of the cap 3 and the inner periphery of the upper opening 4a of the tank 4. At the same time, the entire upper half 5b of the rubber ring 5 is bent outward so that it can be fitted onto the outer peripheral surface of the upper opening 4a of the tank 4.

Further, the outer peripheral surface of the upper half 5b of the rubber ring 5 attached as described above can be freely tightened by a tightening band 6, and a U-shaped hook rod 20 is connected to one end of the tightening band 6. However, on the other end side, the hooking rod 20
A rotary lever 22, which is connected to a hook 21 in a toggle manner and can be freely engaged and detached, is engaged with the pivot lever 22 so as to be movable and adjustable.

In the figure, 7 indicates a parting line that will be formed on the inner circumferential surface of the upper opening 4a when the tank 4 is blow-molded.

Therefore, when attaching the tank 4 loaded with powdered medicine to the cap 3, as shown in FIG. 5, and the upper half 5b of the rubber ring 5 is bent and fitted to the outer circumferential side of the upper opening 4a as shown by the imaginary line. When the tightening band 6 is hung on the outer circumferential side and the hook 21 is engaged with the hook rod 20 and the rotating lever 22 is rotated and tightened, as shown in FIGS. 1 and 3, the rubber The ring 5 allows the tank 4 to be connected while completely closing the gap to prevent the medicine from spewing out, and the tank 4 can be removed by the reverse operation to replenish the medicine.

In addition, when carrying out work with the duster configured in this way, even if the tank 4 hits another object, there is no problem because it is sturdy, and the inside of the tank 4 is pressurized by the pressurizing pipe 16 to close the discharge hole. Air pipe 2 from 17
This means that the dusting operation can be performed without spouting the medicine from the upper outer periphery of the tank 4.

[Effects of the invention] As described above, the present invention makes it possible to make the tank 4 lightweight and have a robust structure, so that it can be suitably worn during duster work, and when the tank 4 is connected, it is possible to By bending and fitting the rubber ring 5 from the inner circumferential surface to the outer circumferential surface of the upper opening 4a of the tank 4, and tightening it with a tightening band 6 from the outer circumference, the gap that is created by the parting line formed in the tank 4 is reduced. This means that the area can be completely blocked and a good seal can be achieved.
Even when the tank 4 is attached to and detached from the cap 3, the rubber ring 5 can be easily attached and detached, and the sealing operation can be easily performed, and the structure has the advantage that it can be carried out suitably with a simple structure.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the main parts of an embodiment of the present invention.
Fig. 2 is a plan view of the portable duster, Fig. 3 is a side sectional view of a part thereof, Fig. 4 is an exploded view of Fig. 1, and Fig. 5 is a view taken along the line V-V in Fig. 4. FIG. 6 is a perspective view of the rubber ring, and FIG. 7 is an explanatory view showing the attached state. 1... Blower, 2... Air pipe, 3... Cap, 3a... Lower opening, 4... Tank, 4a... Upper opening, 5... Rubber ring, 5a... Lower half, 5b
...Upper half, 6...Tightening band.

Claims (1)

[Scope of utility model registration request] An upper opening 4a of a tank 4 loaded with powdered medicine is removably fitted to the outer periphery of a lower opening 3a of an umbrella-shaped cap 3 which is connected in the middle of an air pipe 2 extending from an air blower 1. In the duster, the tank 4 is made of a resin material and blow molded to form an upper opening 4a of the tank 4 and a lower opening 3 of the cap 3.
The lower half 5a of the cylindrical rubber ring 5 is fitted between the outer circumference a and the upper half 5b of the rubber ring 5 is bent outward and fitted onto the outer circumferential surface of the upper opening 4a of the tank 4. A tank seal device characterized in that the outer peripheral surface of the upper half portion 5b is tightened by a tightening band 6.