JPH0446836B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for filling petroleum into a cartridge tank.

Conventionally, when pouring oil from an oil tank into a cartridge tank installed in an oil stove, etc.
This is usually done in the following way.

That is, in FIG. 5, the cartridge tank 1
With the oil filler port 1A facing upward, install the oil filler cap 28.
After removing the cap 29 of the oil tank 17, connect the suction side of the pump 27 to the oil tank 17.
Then, insert it into the cartridge tank 1 on the discharge side.
Thereafter, the pump 27 is activated to inject oil from the oil tank 17 into the cartridge tank 1. When the cartridge tank 1 is filled with oil, the pump 27 is stopped and the pump 27 is pulled out. Then, cap 2 is installed in oil tank 17 and cartridge tank 1, respectively.
8 and 29 and attach it to an oil stove or the like with the oil filler port 1A of the cartridge tank 1 facing downward. However, the conventional methods described above have the following drawbacks.

(1) When injecting oil, it is necessary to turn the cartridge tank 1 so that the oil inlet faces upward, which is cumbersome.

(2) The oil filler cap 28 facing upward must be removed and installed each time.

(3) When attaching and detaching the cap 28, the operator's hands become dirty.

(4) Moreover, since the end of the hose of the pump 27 is immersed in oil and taken out and put in, oil drips from the hose when it is taken out, staining the floor surface, etc.

In view of the above-mentioned conventional circumstances, the present invention provides a cartridge tank with a structure in which oil is injected by directly connecting an oil injection port of a cartridge tank to an oil injection connection provided on the oil supply source side. To provide an oil inlet device which can inject oil regardless of the state of the tank and eliminates the above-mentioned drawbacks of the conventional oil inlet, such as eliminating the need for manual work such as attaching and detaching the cap of the oil inlet of a cartridge tank. It is something.

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

In these figures, 1 is a cartridge tank for storing oil, 24 is a handle installed on the upper end wall of the cartridge tank 1, and 1A is an oil filler formed on the lower end wall of the cartridge tank 1 so as to protrude downward. The inlet 2 is a cap of the oil inlet 1A, and has a gasket 3 on its inner end surface that presses into contact with the open end of the oil inlet 1A. Reference numeral 4 denotes a guide tube that is vertically inserted into the cartridge tank 1 from the oil injection port 1A and has an opening 9 that opens into the tank 1 near the oil injection port 1A.
The outer periphery of the end a is fitted and attached to the inner periphery of the opening 2a of the cap 2. 5 is a substantially cylindrical member that is disposed to be slidable in the axial direction within the guide tube 4 and is normally biased in the direction of closing the opening 4a of the guide tube 4 by a 12 spring. A first plug body 6 whose upper end opening of a cylindrical member passes through the end wall of the guide tube 4 and faces the inner upper part of the tank 1 is disposed in the first plug body 5 so as to be slidable in the axial direction. 1
1 is normally biased in the direction of closing the opening 5a of the oil inlet 1A side of the first plug body 5, and is partitioned into the first plug body 5 by the member. This is a second plug body having a communication hole 10 in the member that communicates the spaces with each other.

Note that 5A is an opening 5a on the injection port side of the first stopper 5.
As shown in FIG. 1, the opening communicating with the cartridge tank 1 is a communicating pipe provided at a protruding position inside the cartridge tank 1, and 7 and 8 are respectively connected to the opening 5 of the first stopper 5.
a and the inner periphery of the opening 4a of the guide tube 4, respectively.

On the other hand, 17 is an oil tank that is an oil supply source to the cartridge tank 1, and 18 is an oil replenishment port 17a.
19 is the handle, 22 is the oil tank 1
A pump 7 is built in, and 21 is a drive unit for the pump 22, which includes a motor, a switch, and a battery.

The oil tank 17 is provided with an oil injection connector 30 consisting of an inner/outer double pipe body to which the oil injection port 1A of the cartridge tank 1 is connected.

That is, in this connecting body 30, 13 is an outer tube body that can be inserted into the opening 4a of the guide tube 4 and has 15 openings on the outer periphery of the tip, and 14 is an outer tube body that can be inserted into the opening 5a of the first plug body 5. The inner tube has 16 openings on the outer periphery of the end protruding from the outer tube.

The outer tubular body 13 is connected to the discharge port of the pump 22 within the oil tank 17 and protrudes upward from the upper wall of the oil tank 17. On the other hand, the inner tube 14 passes through the outer tube 13, penetrates the outer wall of the tube 13, and is opened into the oil tank 17. 23 is the oil tank 17 of this inner pipe body 14
There is an oil detection switch connected to the inner opening, details of which will be described later.

20 is oil inlet 1A of cartridge tank 1
This is a guide when connecting the connector to the connecting body 30, and is normally covered with a cap as shown in FIG.
A switch 25 detects the connection between the oil inlet 1A and the connecting body 30 and enables a switch in the pump drive section 21, which extends upward from the upper wall of the oil tank 17 and connects the cartridge tank 1. The lower end walls of the two can be brought into contact with each other.

Next, the operation of the above configuration will be explained.

First, as shown in FIG. 2, when the cap 26 attached to the guide body 20 is removed and the connecting part of the cartridge tank 1 is pushed down to align with the guide body 20, the second plug body 6 is pushed up by the inner pipe body 14. Subsequently, the first stopper 5 is also pushed up by the outer tube 13, and the outer tube 13 enters the guide tube 4, completing the connection. As a result, a first passage 36 serving as an air discharge passage is connected between the inside of the cartridge tank 1 and the inside of the inner pipe body 14, and a first passage 36 is connected to the inside of the cartridge tank 1 and the inside of the outer pipe body 13. A second passageway 37 as an injection passageway is formed.

At this time, the upper end of the first stopper 5 extends to a location close to the inner upper wall of the cartridge tank 1 and is open. The switch 25 senses that the cartridge tank 1 is pressed and the connection is completed, and the pump drive unit 2
Enable the switch in step 1 to operate. When this switch is turned ON, oil supply is started by the pump 22, and oil is injected into the cartridge tank 1 through the outer tube 13, the opening 15, and the opening 9.

On the other hand, the air in the cartridge tank 1 passes through the interior of the first plug 5 from the upper end opening thereof, and then flows through the communication hole 10 of the second plug 6 and the opening 16 of the inner pipe body 14. It enters the inner tube body 14 and is discharged from there into the oil tank 17. When the cartridge tank 1 is filled with oil, the oil begins to be discharged from the inner pipe body 14, and when the switch 23 detects this, the switch 25 is turned off. Next, when the cartridge tank 1 that has been filled with oil is lifted, the first stopper 5 and the second stopper 6 are pushed down by the springs 11 and 12, respectively, and are transferred to the cartridge tank 1 through the gaskets 7 and 8. is in a sealed state. The gaskets 7 and 8 also function to airtightly seal the gaps between the contact surfaces between the inner tube 14 and the first stopper 5, and between the outer tube 13 and the guide tube 4, respectively.

Further, FIG. 2 32 shows a discharge hole for returning the oil tank that has flowed out inside the guide body 20 into the oil tank 17.

The embodiment with the above configuration has the following advantages in response to the conventional disadvantages (1) to (4).

(1) Since oil can be injected into the cartridge tank 1 while it is in use, that is, with the oil injection port 1A facing downward, there is no need to turn it over again so that the oil injection port 1A faces upward, which is convenient for work. It is.

(2) There is no need to take the trouble to remove the oil filler port 1A cap as in the past.

(3) As per item (2) above, your hands will not get dirty when attaching or removing the cap.

(4) There is no need to immerse the pump hose in oil as in the past, so oil does not drip and stain the floor.

In the above embodiment, oil is injected into the cartridge tank 1 with the oil injection port 1A facing downward, but contrary to the above embodiment, the first passage 36 is the oil injection passage, and the second passage is If the passage 37 is configured as an air discharge passage, oil can be injected with the oil injection port 1A facing upward. Although the cap 2 is of a fit-in type that can be used in common with conventional cartridge tanks, it may also be configured to be attached to the oil inlet 1A by screws, caulking, welding, or the like.

As explained above, the present invention enables the interior and the inside of the cartridge tank to be easily connected by simply vertically connecting the oil injection port of the cartridge tank and the oil injection connection body of the oil injection device of the invention provided at the oil supply source. A first passageway that connects to the inside of the tube body and a second passageway that connects to the vicinity of the oil inlet inside the cartridge tank and inside the outer tube body are formed, and the first passageway and the second passageway are connected to each other.
One of the passages injects oil with a pump and becomes an oil injection passage, and the other becomes an air discharge passage.
Oil injection work can be performed regardless of the condition of the cartridge tank, and there is no need to attach or remove the cap of the oil injection port as required in the past, eliminating the need for cumbersome manual work, improving work efficiency, and reducing oil injection. It is possible to prevent dirt, etc., and to reliably inject oil without mixing the flow of oil with the flow of air.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a cartridge tank according to the present invention, Fig. 2 is a longitudinal sectional view of an oil tank that serves as an oil supply source to the cartridge tank, and Fig. 3 is an oil inlet connection of the same oil tank. Fig. 4 is a longitudinal sectional view showing the connection between the oil injection port of the cartridge tank and the oil injection connector in the tank, and Fig. 5 shows the conventional liquid injection structure. It is a front view. DESCRIPTION OF SYMBOLS 1...Cartridge tank, 1A...Oil injection port, 5...First plug body, 6...Second plug body, 1
1, 12...Spring, 13...Outer tube body, 1
4... Inner pipe body, 15, 16... Opening, 30...
... Oil injection connection body, 36 ... First passage, 37
...Second passage.

Claims (1)

[Claims] 1 A substantially cylindrical member disposed at an oil inlet of a cartridge tank and normally biased elastically in a direction to close the oil inlet, and an opening on the inlet side at one end of the substantially cylindrical member is connected to the cartridge tank. a first plug body facing inward; and a first plug body disposed within the first plug body so as to be supported by the first plug body and normally biased elastically in a direction to close the inlet side opening. petroleum to a cartridge tank comprising a second stopper and a communication pipe connected to the first stopper and having an opening communicating with the inlet side opening at a protruding position inside the cartridge tank. In the injection device, the outer pipe body is insertable into the oil injection port and has an opening that can communicate with the vicinity of the oil injection port inside the cartridge tank, and the injection device is insertable into the injection port side opening. A connecting body for oil injection having an inner/outer double structure consisting of an inner pipe having an opening that can communicate with an opening on the inlet side, and a pump for oil injection, the oil injection port and the connecting body and a first passage connecting the inside of the cartridge tank and the inner tubular body by pressing the first and second plug bodies with the connecting body; A second passage is formed that connects the vicinity of the oil injection port inside the tank and the outer pipe body, and oil is injected into either the first or second passage with the pump to form an oil injection passage. . An apparatus for injecting oil into a cartridge tank, characterized in that the other of the first and second passages is an air exhaust passage.