JPS5827241Y2 - Refueling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a refueling device for a liquid fuel combustion device such as a kerosene stove with an upper and lower wick.

In general, refueling for kerosene stoves with a top-and-bottom wick is carried out using a cartridge tank, but this kind of type avoids creating a gap between the base of the cartridge tank and the fuel filler opening of the fixed tank of the kerosene heater. If the ambient temperature rises due to combustion and liquid fuel such as kerosene evaporates, an odor will be generated in the surrounding area due to the above gap, and if the appliance falls over, the liquid will evaporate. Fuel may leak.

Therefore, conventionally, as shown in Japanese Utility Model Application Publication No. 52-153942, a backing is provided on the fuel filler port of a fixed tank to seal the filler port when a cartridge tank is attached. It is being

However, if the fuel filler port is simply sealed in this way, the air for replacement with liquid fuel will not be supplied from this part.For example, if air for replacement is supplied from the lamp wick, this will affect combustion. Unfortunately, measures need to be taken in this regard.

The present invention was developed in view of these points, and it seals the space between the fuel filler port of the fixed tank and the cartridge tank to prevent the evaporation odor of liquid fuel from dissipating into the surroundings. to ensure a smooth supply of air,
Another object of the present invention is to provide a refueling device in which a detour is formed in the air flow path, and this detour can delay as much as possible the leakage of liquid fuel in the event of a fall, etc. In addition, the present invention provides a fixed tank having an oil filler port on the upper portion of which a cartridge tank mouthpiece is attached, a fixed tank having a ventilation hole near the fuel filler port, and a cartridge tank mouthpiece that is fixed to the fuel filler mouth of the fixed tank. a backing for liquid-tight insertion and support; a cylindrical sleeve attached to the lower part of the fuel filler port of the fixed tank and having a ventilation hole on the side; The invention is characterized in that it is equipped with a ventilation guide frame which is attached to the fixed tank and has a ventilation hole on the side surface that allows the ventilation hole of the fixed tank and the ventilation hole of the cylindrical sleeve to communicate with the inside of the fixed tank.

Next, an embodiment of the present invention will be described with reference to the accompanying drawings.

Reference numeral 1 denotes a fixed tank of a kerosene stove. A combustion mechanism 5 consisting of a wick guide 2, a wick 3, a fire pan 4, etc. is provided on one side of the fixed tank 1. It is mounted so as to be able to move up and down in such a way that it can suck in liquid fuel 6 such as petroleum.

A refueling section 7 for liquid fuel 6 is provided on the other side of the fixed tank 1 .

This oil filler part 7 has a circular oil filler port 9 formed at the top of the other side of the fixed tank 1 at a position close to the side wall 8 . top surface 1
A recessed step 11 is formed below a.

Further, an inclined portion 22 is formed on the outside of the fuel filler port portion 9,
A ventilation hole 24 is provided in this inclined portion 22 .

Reference numeral 12 denotes a cylindrical sleeve attached to the lower part of the fuel filler port 9 of the fixed tank 1, and this cylindrical sleeve 12 has a retaining step portion 13 with an enlarged diameter formed at its upper end. A mounting edge 14 is bent at the upper part of the housing 13, a ventilation hole 25 is formed in the side surface of the case, and a locking edge 15 with a reduced diameter is formed at the lower end. A filtration disk 17 having a large number of through holes 16 is attached to the filtration disk 17, and a push rod 18 is protruded from the upper center of the filtration disk 17.

The upper mounting edge 14 of the cylindrical sleeve 12 is fixed to the back surface of the upper surface 1a of the fixed tank 1 by spot welding or the like.

Reference numeral 19 denotes a ventilation guide frame, and the ventilation guide frame 19 has a mounting piece 20 bent at the upper end of the frame whose top surface and one side are open, and which is attached to the back surface of the fixed tank 1. A mounting piece 21 to be attached to the outer surface of the cylindrical sleeve 12 is bent at the lower end.Furthermore, a ventilation hole 13 is bored at the upper side surface.

In the fixed tank 1, the ventilation guide frame 19 has the mounting piece 20 at the upper end fixed to the fixed tank 1 with the opening on the upper surface facing the fixed tank 10 ventilation hole 24, and - The mounting piece 21 at the lower end is fixed to the lower part of the cylindrical sleeve 12 with the opening on the side facing the ventilation hole 25 of the cylindrical sleeve 120, so that the ventilation guide frame 19 is connected to the ventilation hole 24 of the fixed tank 10 and the cylindrical sleeve. The sleeve 120 vents 25 are located on the inside, and these vents 24,25 are communicated with the interior of the stationary tank 1 by the vents 23.

Reference numeral 26 denotes a rubber backing, and this backing 26 is formed into an annular shape with a size that can be installed inside the fuel filler port 9. A guide surface 27 that slopes inward is formed on the upper surface of the backing 26, and a stepped portion 28 is formed on the lower end. Through the cylindrical sleeve 12
A retaining protrusion 29 that engages with the upper end of the is integrally formed in an annular shape.

The backing 26 is fluid-tightly accommodated and fixed within the concave step 11 of the fuel filler port 9 and the retaining step 13 of the cylindrical sleeve 12, and the backing 26 is fixed to the opening edge 11 of the filler port 9. The retaining protrusion 29 is engaged with the inner wall of the cylindrical sleeve 12 in a fluid-tight manner.

30 is a cartridge tank, and the push rod 18 is attached to the cylindrical mounting bracket 31 in the center of the cartridge tank 300.
A spout 33 is fixed to the inner wall of the backing 26 to form a discharge hole 32 through which the backing 26 is inserted.

A cylindrical spring presser body 34 having a large number of communication holes 40 around the periphery is fixed to the inside of the cap 33, and a valve 35 having an O-ring 39 is provided inside the spring presser body 34. A guide rod 36 of this valve 35 is inserted into a guide hole 37 of a spring presser body 340 so as to be freely advanced and retracted.

The upper part of this spring presser body 34 and the valve 35
A spring 38 is wound around the guide rod 36 between the valve 35 and the discharge hole 32.
The discharge hole 32 is normally closed in a liquid-tight manner.

In such a configuration, when the cartridge tank 30 is inserted into the fuel filler port 9 of the fuel filler 7 of the fixed tank 1, the mouthpiece 33 of the cartridge tank 30 is inserted liquid-tightly through the backing 26 attached to the fuel filler port 9. The mouthpiece 33 and the oil filler port 9 are closed by the backing 26 without any gap.

At the same time, the push rod 18 protruding from the filtering disk 17 in the cylindrical sleeve 12 passes through the discharge hole 32 of the nozzle and pushes into the nozzle 33, and pushes the valve 35 with its tip. is pushed back against the spring 38 to open the discharge hole g.

Therefore, the liquid feed 6 such as petroleum in the cartridge tank is supplied into the fixed tank 1 by flowing down through the communication holes 40 of the spring holding system, through the discharge holes 32, and through the communication holes 16 of the filtering disk 17.

Next, due to the combustion by the lamp 3 in the combustion mechanism 5, the temperature of the liquid fuel 6 rises due to the combustion heat, but since the fuel supply section 7 is closed by the backing 26, the liquid fuel 6 is vaporized and evaporated due to the combustion heat. Even if something happens, it will not dissipate into the surrounding area, and therefore no odor will be generated.

By providing the backing 26 on the residual fuel filler port 9, the liquid fuel 6 in the cartridge tank 30 cannot be replaced with air at the fuel filler port 9; Since the guide frame 19 is provided with replacement ventilation holes 24, 25.23, which communicate with each other, the liquid fuel 6 in the cartridge tank 30 can be easily replaced by the replacement ventilation holes 24, 25.23.

In addition, in the event that the kerosene stove falls over, a detour is formed by the ventilation guide frame 19 between the inside of the fixed tank 1 and the fixed tank 10 ventilation hole 24, and the fixed tank 10 is
Leakage from the guide plate 220 and the ventilation hole 24 is greatly delayed.

According to the present invention, by inserting and supporting the cap of the cartridge tank through the fuel filler port of the fixed tank via the backing, the space between the filler port and the cap of the cartridge tank is sealed and the evaporated odor of liquid fuel is removed from the surroundings. In addition, by forming replacement ventilation holes that communicate with each other in the vicinity of the fuel filler port of the fixed tank, the cylindrical sleeve, and the ventilation guide frame, the liquid in the cartridge tank can be dissipated through each ventilation hole. The supply of air to replace the fuel is carried out smoothly, and even if the fuel filler port is blocked by a backing, the replacement function is not impaired.
If the fixed tank accidentally falls over, there is no risk of the liquid fuel flowing out from the fuel filler port, and the ventilation guide frame between the inside of the fixed tank and the ventilation hole leading to the outside of the fixed tank prevents liquid fuel from flowing out. Therefore, leakage of liquid fuel is delayed as much as possible, and subsequent treatment can be reduced.

[Brief explanation of the drawing]

FIG. 1 is an explanatory front view of a kerosene stove equipped with the oil supply device of the present invention, FIG. 2 is an enlarged sectional view of the same oil supply device, and FIG. 3 is a plan view of the same. 1...Fixed tank, 9...Fuel filler port,
12... Cylindrical sleeve, 19... Ventilation guide frame, 23, 24° 25... Ventilation hole, 26.
... Backing, 30 ... Cartridge tank, 33 ... Mouthpiece.

Claims (1)

[Scope of Claim for Utility Model Registration] A fixed tank having an oil filler port on the top of which a cartridge tank cap is attached and a vent hole near the fuel filler port, and a cartridge tank cap that is fixed to the fuel filler port of the fixed tank. a backing for liquid-tight insertion and support; a cylindrical sleeve attached to the lower part of the fuel filler port of the fixed tank and having a ventilation hole on the side; A refueling device characterized by comprising: a ventilation guide frame which is attached to the inside of the stationary tank and has a ventilation hole on its side that connects the ventilation hole of the fixed tank and the ventilation hole of the cylindrical sleeve with the inside of the fixed tank.