JPH025234Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a liquid fuel supply device for an oil combustor or the like into which a cartridge-type fuel tank is taken in and taken out.

[Conventional technology]

Figure 5 shows a kerosene stove.
is a combustor main body, which is provided with a combustion tube 3 whose front part is covered with a guard 2 made of wire that can be opened and closed. In addition, in the figure, 4 is an ignition knob, and 5 is a fire extinguishing knob. A lid 6 that can be opened and closed is provided on the top surface of the combustor body 1, and by opening the lid 6, a cartridge type fuel tank 7 can be taken in and out of the combustor body 1 from the top surface. The fuel tank 7 has a handle 8 on its upper surface, and a cap 10 removably screwed onto a liquid supply port 9 on its lower surface. As shown in FIG. 6, the cap 10 is provided with a valve body 13 which is biased by a spring 12 so as to normally close the outlet 11.

Further, a fuel receiving portion 14 is provided within the combustor main body 1 so as to face the lid 6 . This receiving part 14
As shown in FIG. 6, it has a receiving tray 16 below the cap insertion tube 15, and a receiving plate 19 attached to the receiving tray 16 and having a plurality of through holes 17 and a shaft-shaped valve contact portion 18. have. Moreover, a filter member 20 for closing the through hole 17 is provided between the receiving plate 19 and the bottom wall of the fuel receiving portion 14. The fuel receiver 14 is communicated with the combustion tube 3, and the liquid fuel accumulated in the receiver 14 is successively replenished into the combustion tube 3 as it is consumed in the combustion tube 3.

In such a conventional structure, by opening the lid 6 of the fuel tank 7 and inserting it into the combustor main body 1, the base cap 1 is opened as shown in FIG.
0 is inserted into the cap insertion tube 15,
The valve contact portion 18 pushes open the valve body 13 to open the outlet 11.
to open. Therefore, the liquid fuel in the fuel tank 7 is supplied from the outlet 11 to the fuel receiving portion 14, and the liquid fuel thus supplied is sequentially replenished into the combustion tube 3.

[Problem that the invention attempts to solve]

However, in this type of liquid fuel supply device, the liquid level of the liquid fuel accumulated in the fuel receiver 14 is located at the outlet 11.
The lower surface of the base cap 10 is directly immersed in the liquid fuel. Therefore, when replenishing the fuel tank 7 with liquid fuel, the liquid fuel adhering to the base cap 10 often drips when the tank 7 is removed from the combustor body 1 and transported. It was hot.

[Means for solving problems]

The present invention allows a cartridge-type fuel tank to be taken in and out from the top side of the combustor main body, and a valve body provided in a mouth cap of this tank that normally closes the outlet of the mouth cap is used to control the fuel inside the combustor main body. In the liquid fuel supply device for a combustor, which opens when the combustion tank is inserted into the combustor main body by means of a valve contact portion of the receiving portion, and supplies liquid fuel from the fuel tank to the fuel receiving portion, In order to solve this problem, a close contact plate is provided in the fuel receiving part that comes into contact with and separates from the entire bottom surface of the base cap as the fuel tank is taken in and out, and a close contact plate that is connected to the close contact plate and rotates upward. It is equipped with a biasing spring.

[Effect]

In this liquid fuel supply device, when the fuel tank is inserted into the combustor main body, the contact plate is in close contact with the entire lower surface of the base cap, so that the lower surface of the cap is exposed to the liquid accumulated in the fuel receiving part. Not directly immersed in fuel. Then, when the fuel tank is removed from the combustor main body, as the fuel tank rises, the spring, which had been compressed by the weight of the fuel tank, rapidly restores its original shape and stretches together with the close plate. As a result, the base cap quickly separates from the liquid fuel in the fuel receiving portion with the contact plate remaining in close contact with its lower surface, and then the lower surface of the base cap separates from the contact plate. Therefore, the fuel tank can be pulled out while substantially preventing liquid fuel from adhering to the lower surface of the base cap.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 4.

In the figure, 21 is a cartridge-type fuel tank that is taken in and out from the top of the combustor main body. A fuel filler port 22 is provided protruding from the lower surface of the tank 21, and a base cap 23 is detachably screwed onto the fuel filler port 22. The base cap 23 has a valve body 25 that opens and closes the outlet 24 opened at the bottom of the base cap 23.
A spring 26 is built in to constantly press the valve body 25 against the outlet 24 to close it.

Further, 27 in the figure is a fuel receiving portion provided within the combustor main body. This fuel receiving portion 27 is provided with a cap insertion tube 28 into which the base cap 23 is inserted, and an upwardly bulging portion 27a formed around the insertion tube 28 serves as a seat for supporting the fuel tank 21. There is.

Furthermore, a cap insertion tube 28 is provided in the fuel receiving portion 27.
A saucer 29 is built in so as to surround it.
A substantially central portion of the tray 29 facing the cap insertion tube 28 is open, and this opening is closed by a tray 30. The receiving plate 30 is
For example, the center part has a shaft shape, and the lower end is a spring seat 3.
It has a valve abutment part 32 of 1, and has a plurality of through holes 33 around the valve abutment part 32.

The spring seat 31 is placed on this receiving plate 30.
For example, a conical coil spring 34 is attached with its small diameter lower end supported by the spring. A close contact plate 35 is connected to the upper end of the spring 34.

The contact plate 35 has a diameter larger than that of the base cap 23 and is brought into contact with and separated from the entire lower surface of the base cap 23. In this embodiment, the contact plate 35 is made of a material that is expandable and has liquid absorption properties, such as sponge.
Moreover, in the free state, the upper part of the contact plate 35 is located within the lower part of the cap insertion tube 29.

Further, numeral 36 in the figure represents a filter member such as felt, which is sandwiched between the bottom wall of the fuel receiving portion 27 and the receiving plate 30.

In the liquid fuel supply system having the above configuration, when the fuel tank 21 is inserted into the combustor main body from the top surface, the base cap 23 of the fuel tank 21 is inserted deeply into the cap insertion tube 28 from the state shown in FIG. As the lower surface of the base cap 23 comes into contact with the contact plate 35, the coil spring 34 is compressed and deformed together with the contact plate 35. When the fuel tank 21 is supported by the upward bulging portion 27a, the normal insertion state is established.

This state is shown in FIG.
is fitted into the lower surface of the base cap 23 by the spring force of the coil spring 34. Therefore, the lower surface of the base cap 23 is not directly immersed in the liquid fuel collected in the fuel receiving portion 27.
Moreover, in this embodiment, the close contact plate 35 is also compressed.

In this state, the valve contact portion 3 of the fuel receiving portion 27
2 is inserted through the outlet 24 of the base cap 23 and pushes up the valve body 25. Therefore, the liquid fuel in the fuel tank 21 passes through the coil spring 34, the through hole 33, and the filter member 36 in this order and is supplied to the fuel receiving part 27. The fuel is sequentially replenished from the fuel receiver 27 to the combustion tube according to the amount of fuel consumed in the combustion tube.

When replenishing the fuel tank 21 with liquid fuel, the fuel tank 21 is pulled out from the combustor main body. In this case, the coil spring 34, which has been pressed down and compressed by the weight of the fuel tank 21, quickly returns to its original state due to its own elastic force.
The time required for the base cap 23 to come out of the cap insertion tube 28 when the fuel tank 21 is taken out is approximately one second or less. During such a short period of time, the coil spring 34 maintains the close contact plate 35 in close contact with the lower surface of the cap, and reaches its free length after the close plate 35 is separated from the liquid fuel. Thereafter, the lower surface of the base cap 23 is separated from the contact plate 35. Therefore, the amount of liquid fuel adhering to the lower surface of the base cap 23 is small, and the fuel tank 21 is removed from the combustor main body in this state.

In this embodiment, since a sponge is used for the close contact plate 35, although the close contact plate 35 is in a compressed state when the fuel tank 21 is inserted,
The lower surface of the base cap 23 comes into contact with the liquid fuel that has soaked into the close contact plate 35. However, when taking out the fuel tank 21, the elastic force becomes smaller than the elastic force of the spring 34 as the cap cap 23 separates from the close plate 35 after the cap cap 23 is separated from the liquid fuel. The contact plate 35 restores itself along the direction of increasing thickness, and this restoration absorbs the liquid fuel adhering to the lower surface of the base cap 23.

Therefore, when carrying the fuel tank 21, it is possible to prevent the liquid fuel adhering to the base cap 23 from dripping down.

Although the above embodiment is configured as described above, in the present invention, when the valve body has a shaft portion that passes through the outlet, the valve contact portion of the fuel receiving portion is configured to be a receiving plate or a fuel receiving portion. It may also be formed directly on the bottom wall of the section. Further, the contact plate may be made of felt or rubber, or may be made of a hard material that does not expand or contract.

In addition, when implementing the present invention, unless it is contrary to the gist of the invention, specific structures such as the fuel tank, mouthpiece cap, outlet, valve body, fuel receiving part, valve contact part, contact plate, spring, etc. Of course, the shape, position, material, etc. are not limited to the one embodiment described above, and can be configured and implemented in various ways.

[Effect of idea]

According to the present invention, which has the gist of the structure described in the above-mentioned utility model registration claims, when the fuel tank is removed from the combustor body and carried, the liquid fuel attached to the mouth cap of the fuel tank becomes zero. It has the practical effect of preventing dripping.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention,
FIG. 1 and FIG. 2 are cross-sectional views in different states, respectively.
FIG. 3 is a partial sectional view, and FIG. 4 is a plan view of FIG. 3. FIG. 5 is a schematic perspective view showing a partially cut away kerosene stove. FIG. 6 is a sectional view showing a conventional example. 21... Fuel tank, 23... Base cap,
24...Outflow port, 25...Valve body, 27...Fuel receiving part, 32...Valve contact part, 34...Spring, 3
5...Close board.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A cartridge type fuel tank is inserted into and taken out from the top side of the combustor main body, and a valve body is installed in a mouth cap provided with this tank and normally closes the outlet of said mouth cap, Liquid fuel of the combustor that opens when the fuel tank is inserted into the combustor main body by a valve abutting part of the fuel receiving part in the combustor main body, and supplies liquid fuel from the fuel tank to the fuel receiving part. In the supply device, a contact plate is provided in the fuel receiving portion and moves toward and away from the entire lower surface of the base cap as the fuel tank is taken in and out, and a spring is connected to the contact plate and urges the contact plate upward. A liquid fuel supply device for a combustor, characterized in that it is provided with: (2) In the statement of claim (1) of the utility model registration, the close contact plate is made of a stretchable material that has liquid absorption performance, and the elastic force of the spring is greater than that of the close contact plate. A combustor liquid fuel supply device characterized by: