JP2595557B2 - Refueling device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil supply device used for a portable stove, a fan heater, an FF hot air blower and the like using kerosene as a fuel.

2. Description of the Related Art In order to supply oil from a plastic tank to a cartridge tank without removing a cap of the cartridge tank, the following configuration on the cartridge tank side is generally considered.

In FIG. 2, reference numeral 1 denotes a cartridge tank;
Is a handle. Reference numeral 2 denotes a cap body screwed to the cartridge tank 1, and reference numeral 2 ′ denotes packing for sealing the cartridge tank 1 and the cap body 2. Reference numeral 3 denotes an outer opening provided at a lower portion of the cap body 2. A spring guide 6 is provided concentrically with the outer opening 3 inside the cap body 2, and an oil supply passage 6 a is provided on a side surface of the spring guide 6. Have been. Reference numeral 4 denotes an outer bulb formed of a sealing material or the like, which is fixed to an end of the valve cover 11. Further, the outer valve 4 is biased so that the outer opening 3 is "closed" by an outer flange 7 of the valve cover 11 and an outer spring 7 incorporated inside the spring guide 6. An inner opening 5 is formed concentrically at the center of the outer valve 4, and the inner valve 8 “closes” the inner opening 5 by an inner spring 9 in the valve cover 11.
It is energized to the state. Reference numeral 10 denotes an air vent pipe fixed to the upper part of the valve cover 11, penetrating the upper part of the spring guide 6, and extending to the upper part of the cartridge tank 1. Reference numeral 12 denotes an oil level in the cartridge tank 1.

In the above configuration, the oil is stored in the cartridge tank 1 and also penetrates into the air vent pipe 10, but the interior of the cartridge tank 1 is sealed by the bias of the springs of the outer pulp 4 and the inner pulp 8, and the oil is stored in the cartridge tank 1. It does not leak outside.

FIG. 3 shows a state where the cartridge tank 1 is mounted on a main tank 19 such as an oil stove. Reference numeral 10 'denotes oil in the air vent pipe 10, reference numeral 15 denotes a substantially cylindrical oil supply section provided at an appropriate position in the main tank 19, which comprises a pin 16 at a central portion and an opening 17 provided at the periphery. To the main tank 19 via Reference numeral 20 denotes an oil surface formed at substantially the same level as the outer opening 3 of the cap body 2.

In the above configuration, the outer valve 4 in the cap main body 2 screwed to the cartridge tank 1 is pushed up by the pin 16 of the oil supply unit 15, and the outer valve 4 is “opened”. Oil is supplied to the combustion section (not shown)
Consumed in As a result, the oil level 12 in the cartridge tank 1 drops, and eventually becomes “empty”. However, since the inner valve 8 was "closed", the oil in the air vent pipe 10 often remained without being consumed.

Problems to be Solved by the Invention However, in the above configuration, "empty" when "full" amount
Regardless of the volume, the inner valve is "closed", so that oil enters the air vent pipe 10 in the cartridge tank 1. Especially when the cartridge tank 1 is transported with the "empty" volume, the inner valve of the cap body 2 If you press 8, the oil in the remaining air vent pipe 10 will flow through the inner opening 5,
There was a problem that it spilled and made the surroundings dirty.

The present invention solves the above-mentioned problems of the conventional example, and makes it possible to use all of the oil in the cartridge tank without leaving the oil. To prevent this from happening.

Means for Solving the Problems In order to solve the above problems, the lubricating apparatus of the present invention includes an outer valve having an outer spring for opening and closing an outer opening, an inner spring coaxial with the outer spring, and an air vent pipe. A cap body screwed to a cartridge tank, a cylindrical outer pin in contact with the outer valve and provided with an opening, and the inner valve coaxial with the outer pin. And a refueling portion of the main tank having an inner pin that comes into contact with the main tank.

According to the present invention, both the inner valve and the outer valve are “open” during combustion by the above-described configuration, the oil in the cartridge tank and the oil in the air vent pipe are both consumed, and “empty”.
No oil is present in the cartridge tank at the time of volume.
Therefore, even if the inner valve is inadvertently pressed during transportation, the oil does not flow out, so that the surroundings are not polluted.
In addition, even when oil is supplied to the cartridge tank by the oil supply device proposed in Japanese Patent Application Laid-Open No. 58-216592, the pump operates normally because oil does not flow to the oil detection switch side at startup.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. Since the same reference numerals as those in the conventional example denote the same parts, detailed description will be omitted, and different parts will be mainly described.

In FIG. 1, reference numeral 16a denotes a hollow cylindrical outer pin provided at the center of the oil supply unit 15, and 16b denotes an outer pin opening provided at a suitable position around the outer pin 16a. 22 is an inner pin provided coaxially inside the outer pin 16a.

When the cartridge tank 1 containing oil is fitted to the oil supply section 15 of the main tank 19 in the above configuration, the outer valve 4 and the inner valve 8 in the cap body 2 are connected to the outer pin of the oil supply section 15.
The outer valve 4 and the inner valve 8 are both opened by being pushed up by the inner pin 16 and the inner pin 16a. When the oil is consumed in the combustion section (not shown), the oil flows out from the outer opening 3, the inner opening 5, and the outer pin opening 16b, and the oil level 12 in the cartridge tank 1 and the air vent pipe 10 And finally, the inside of the cartridge tank 1 as well as the inside of the air vent pipe 10 becomes "empty". Thus, the oil in the cartridge tank 1 can be consumed without being left. Also, even if the inner valve 8 is inadvertently pressed during transportation for lubrication, the oil does not flow out, so that the surroundings are not stained.

Advantageous Effects of the Invention As described above, according to the lubricating device of the present invention, the following effects can be obtained.

(1) Even if the inner valve is inadvertently pressed during transportation when the oil in the cartridge tank is “empty”, the oil does not flow out, so that the surroundings are not polluted.

(2) When an oil supply device that supplies oil to the cartridge tank without removing the cap body is used, since the oil does not remain even when the inner valve is opened, the device operates normally. (3) When the cartridge tank is incorporated in the main tank, the oil in the air release tank also flows from the outer pin opening to the main tank side, so that the oil in the cartridge can be used without being left.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of one embodiment of the fuel supply device of the present invention, FIG. 2 is a cross-sectional view of a conventional cartridge tank, and FIG. 3 is a cross-sectional view when the conventional cartridge tank is incorporated in a main tank. 1 ... cartridge tank, 2 ... cap body, 3 ...
... Outer opening, 4 ... Outer valve, 5 ... Inner opening,
7 ... Outer spring, 8 ... Inner valve, 9 ... Inner spring, 10 ... Air release pipe, 15 ... Refueling unit, 16
a ... Outer pin, 16b ... Outer pin opening, 19 ... Main tank, 22 ... Inner pin.

Claims (1)

(57) [Claims] 1. An outer valve having an outer spring for opening and closing an outer opening, an inner spring coaxial with the outer spring, and an inner valve having an air vent pipe for opening and closing the inner opening. A refueling device comprising: a cap body having a shape; a cylindrical outer pin abutting on the outer valve and having an opening; and an inner pin coaxial with the outer pin and having an inner pin abutting on the inner valve.