JPH0646153U - Refueling tank in cartridge refueling type oil stove - Google Patents

Abstract

(57) [Abstract] [Purpose] Even when the mouthpiece is tightened, it is possible to refuel from the oil outlet with the oil supply hose.
Eliminate the troublesome work of screwing the mouthpiece and eliminate the inconvenience of soiling your hands with oil. [Structure] A base 5 screwed into a fuel filler port 3 of a tank body 1.
With respect to the oil supply port 10, the oil supply hose 23 is formed to have a diameter that allows the oil supply hose 23 to be inserted with a gap therebetween. The valve 11 can be pushed by the oil supply hose 23 against the elastic force of the biasing spring 13 until the oil supply hose 23 can be installed in the oil supply hole 28.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a refueling tank in a cartridge refueling type oil stove in which the refueling tank is removable like a cartridge.

[0002]

[Prior art]

 Conventionally, the refueling tank of a cartridge refueling type oil stove consists of a tank main body and a separate cap, of which a male screw refueling port is provided at the lower end of the tank main body, and a female screw cap is It is screwed into the fuel filler port. When refueling the refueling tank, the mouthpiece is removed with the refueling port facing up, and the refueling hose is inserted into the tank through the refueling port.

The mouthpiece is provided with a valve and an oil discharge port which is constantly sealed by a biasing spring in the center of the bottom wall, and a middle cylinder (in the present invention, a guide for holding the valve and the biasing spring in the center). (Corresponding to a cylinder) is projected. Since the middle cylinder is formed so as to surround the oil discharge port, a hole or groove for allowing the oil in the tank to flow out to the oil discharge port is provided. Further, a valve rod is integrally attached to the valve, and a support piece through which the valve rod is vertically inserted is fitted to an upper end of the guide cylinder.

When the oil supply tank is loaded into the oil stove after the oil supply port is closed with the base, the push-up pin at the bottom of the storage chamber in which the oil stove is stored pushes up the valve to open the oil discharge port, and the oil is discharged from there. It is discharged in place of air, and when the oil surface closes the oil outlet, air does not enter, so the oil surface is always held at that position. Since the inflow of air and the discharge of oil are minute enough to maintain the oil level (supply of oil to the combustion device), the diameter of the oil discharge port has conventionally been small enough to prevent the refueling hose from being inserted, and The valve was only slightly open.

[0005]

[Problems to be Solved by the Invention] According to the conventional refueling tank as described above, when refueling, the mouthpiece is removed, the refueling port is opened, the refueling hose is inserted into the refueling port, and after refueling, the The clasp was attached like this, but at that time, not only the troublesome work of turning the screw was forced, but also because the clasp was always oiled, there was the inconvenience that the hands became dirty. .

Further, when the mouthpiece is attached, it is easy to neglect to completely tighten it by mistake, and when the oil stove is loaded in a loosely tightened state, even if the oil level reaches the oil discharge port, the loose screw There was also a problem in that the air entered from between the gaps raised the oil level further, leading to the danger of excessive flame rise.

In view of the above situation, the present invention makes it possible to refuel from the oil discharge port with the refueling hose even when the mouthpiece is tightened, which facilitates the refueling work, and It is an object of the present invention to provide a refueling tank for a cartridge refueling type oil stove that can refuel efficiently without soiling the hands with oil and prevent forgetting to tighten the mouthpiece.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the refueling tank in the cartridge refueling type oil stove according to the present invention has a mouthpiece which is screwed into the refueling port of the tank body, and the refueling hose of the refueling pump is inserted with a gap. The guide cylinder of the valve that has a diameter that can be opened and closed to open and close the oil discharge port is provided so as to project into the tank main body, and the urging spring of the valve installed in the guide cylinder is installed in the guide hose of the oil supply hose. The valve is formed so that it can be inserted deeply into the guide cylinder at the tip, and the guide cylinder has a hole that opens into the tank body, and by pushing the valve, the refueling hose can be attached to the hole. And

[0009]

[Action]

 When refueling the refueling tank configured as described above, with the refueling tank removed from the oil stove, turn it upwards, insert the refueling hose into the spout of the mouthpiece screwed to the refueling port, and open the valve. Push it in deeply. Then, the valve reaches the lower end of the guide cylinder and an oil supply hole is opened above the valve. Therefore, when oil supply is started, the oil flowing out from the mouth of the oil supply hose flows into the tank body from the oil supply hole.

Since there is a gap between the oil discharge port and the oil supply hose, the air that replaces the oil supply is discharged from the gap. Further, since the oil supply hole provided in the guide cylinder is opened in the tank body, the oil is smoothly supplied, and there is no fear that the momentum of the oil supply will be excessive and the oil will overflow from the oil discharge port.

When the refueling hose is pulled out after refueling is completed, the valve returns to the refueling port by the elastic force of the biasing spring and seals it. Even if the elastic force of the biasing spring is weak, there is no risk of oil leakage when the oil filling port is directed downward to load the oil stove and the valve is pushed by the oil pressure.

When loading the oil stove, there is no need to tighten the mouthpiece, and since the original completely closed state, there is no risk that the oil level will rise above the oil outlet. When it is necessary to remove the base, for example, when the base is clogged with dust and needs to be removed.

[0013]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. The drawing shows an embodiment, and an oil supply tank T is composed of a tank body 1 and a female screw cap 5 screwed to an oil supply port 3 of its male screw (Fig. 1). However, the screw may be reversed, that is, the base 5 may be a male screw.

The tank body 1 has a filler port 3 attached thereto by welding, and an inner flange 4 is formed by projecting a part of a fixed wall of the tank body 1 to the inside of the filler port 3.

The base 5 is composed of a base body 7, a guide tube 9 integrally attached to the base body 7, a valve 11 housed therein, and a biasing spring 13 thereof.

The base body 7 is a cap including a side wall 15 on which a female screw is formed and a bottom wall 17, and the bottom wall 17 is formed in a step shape with a lower central portion, and an oil discharge port is formed in the central portion of the lower step. 10 is opened, and a packing 19 to which the lower end of the fuel supply port 3 is pressed is adhered to the upper stage, and a side wall 15 is formed with a hole 21 on the packing 19.

The oil discharge port 10 is formed to have a diameter slightly larger than the diameter of the oil supply hose 23 so that the oil supply hose 23 of the oil supply pump is inserted with a slight gap, and an annular valve seat is formed inside the peripheral edge portion. 25 is provided.

The guide cylinder 9 is fitted to the valve seat 25 and is erected from the lower stage of the bottom wall 17, has a diameter larger than that of the valve seat 25, and has an upper end of a length such that it projects into the tank body 1. Has been formed. The inner cylinder 9 is provided with an oil discharge hole 27 that opens to the mouth of the valve seat 25, and an upper end has an oil supply hole 28 that opens into the tank body 1. However, the both holes 27, 28 may be integrally formed in a groove shape. Further, a support piece 29 on which the upper end of the urging spring 13 hangs is fitted on the upper end of the guide cylinder 9.

The valve 11 is formed in a truncated cone shape at its tip end, has a recess 31 at its base end for accommodating the lower end of the biasing spring 13, and has a valve rod 33 at the center through which the biasing spring 13 is inserted. Is attached, and the upper end portion of the valve rod 33 is pierced through the center of the holding piece 29 so as to be vertically movable. Since the valve 11 is provided with the recess 31, it is necessary to ensure the stability of the valve 11, so that the valve 11 and the biasing spring 13 can be formed long.

FIG. 1 shows a state where oil is supplied from the oil supply hose 23 to the oil supply tank T. The oil supply hose 23 is connected to the oil supply port 3 of the tank body 1 with the base 5 screwed on. When the valve 11 is inserted deeply, the valve 11 is pushed against the lower end of the guide cylinder 9 against the elastic force of the biasing spring 13, and the mouth of the oil supply hose 23 is opened to the oil supply hole 28 of the guide cylinder 9. Oil flows into the tank body 1. Air, which replaces oil, is discharged from the gap of the oil outlet 10.

The mouth of the fuel supply hose 23 is formed obliquely so as not to be closed by the valve 11. However, at the time of refueling, the valve 11 and the refueling hose 23 open naturally against the elastic force of the urging spring 13 due to the momentum of refueling, so that it is not always necessary to form them obliquely.

The tank body 1 is refueled in an appropriate amount so that it does not reach the upper end, but even if it reaches the upper end, the inner collar 4 restricts the outflow to the refueling port 3, and the suppression is a response to refueling. Moreover, by stopping the refueling with that, it is possible to prevent the excessive refueling from overflowing.

FIG. 3 shows a state in which the oil supply tank T is loaded in the storage chamber of the oil stove S, which is received by the support 32 provided at the lower end of the storage chamber, and the valve 11 is slightly moved by the push-up pin 33. The oil is discharged from the oil discharge port 10 in exchange for air, and the oil level is held at the opening position A of the oil discharge port 10.

Even if the oil level rises higher than that due to the inflow of air from between the screws due to the loosening of the mouthpiece 5, when the oil level reaches the position B of the drain hole 21, the oil level is changed. Since the oil flows into the mouthpiece 5 through the vent hole 21 and seals the oil filler opening 3, the oil level never rises above the position B, and the risk of fire due to excessive oil supply can be prevented. It

When the vent hole 21 is not provided, the oil level rises to a position C at the upper end of the mouthpiece 5, which is in a dangerous state.

[0026]

[Effect of device]

 As described above, according to the present invention, with respect to the mouthpiece screwed to the oil supply port of the tank body, the oil discharge port is formed to have a diameter into which the oil supply hose of the oil supply pump can be inserted with a gap, and the insertion Since it is possible to refuel, it is possible to refuel easily and quickly without the need for the troublesome work of screwing the mouthpiece for refueling work, and there is no inconvenience of soiling the hands with oil. In addition, the guide cylinder is provided with an oil supply hole that opens into the tank body, and the oil supply hose can be attached to the discharge hole by pushing the valve, so that oil can be smoothly supplied so that oil does not overflow from the oil discharge port. It has an excellent effect that it can be done.

Further, when the oil stove is loaded, it is not necessary to tighten the mouthpiece, and the original completely closed state can be achieved, so that it is possible to prevent the risk that the oil surface rises above the oil discharge port, and it is possible to perform cleaning or the like. Therefore, there is also an effect that the base can be removed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a fuel tank of the present invention shown in a refueled state.

FIG. 2 is a perspective view showing a part of the mouthpiece of the embodiment with a part cut away.

FIG. 3 is a cross-sectional view of the same embodiment showing a state in which the oil stove is loaded.

[Explanation of symbols]

 1 Tank Main Body 3 Refueling Port 5 Base 9 Guide Tube 10 Oil Outlet 11 Valve 13 Energizing Spring 23 Refueling Hose 28 Refueling Hole

Claims (1)

[Scope of utility model registration request] 1. A mouthpiece (5) screwed to a fuel filler opening (3) of a tank body (1) can be inserted into a fuel supply hose (23) of a fuel pump with an oil outlet (10). A guide cylinder (9) of a valve (11) that is formed to have a diameter and that opens and closes the oil discharge port (10) is provided so as to project into the tank main body (1) so as to be installed inside the guide cylinder (9). Biasing spring (1
3) is formed so that the valve (11) can be inserted deeply into the guide cylinder (9) at the tip of the fuel supply hose (23), and the guide cylinder (9) has an oil supply hole that opens into the tank body (1). A refueling tank for a cartridge refueling type oil stove characterized in that a refueling hose (23) is provided in the refueling hole (28) by providing (28) and pushing the valve (11).