JPH02118315A - Cartridge tank filler - Google Patents

Abstract

PURPOSE:To fill the cartridge tank with liquid without removing a cap having a valve and a valve hole and without requiring the handling by hand by making use of the valve hole which is spring-biased for closing as a filler hole when the cartridge becomes empty. CONSTITUTION:The filler 10 is made of, for instance, plastic. Its middle section is a section in which the end of a downwardly extending cylindrical projection 10A is pushing down the valve 7, and an opening 10B is drilled near the end of the projection 10A to allow the discharge of liquid. In its upper part, the insert section 10C is inserted into the end 9A of a discharge pipe 9 so as to fasten and seal the end 9A of the discharge pipe 9 to prevent the liquid leakage. The liquid which is pumped up is routed from the discharge pipe 9 through the filler 10 to flow down into the cartridge tank 1 from the end opening 10B in the projection 10A. The air displaced by the influent liquid is discharged to the atmosphere from a discharge opening 5C drilled in the upper part of a guide tube 5 out of the valve hole 3A and the gap at the root of the projection 10A.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is directed to a method in which a valve provided on the lower surface of a cartridge tank is pushed up by a protrusion provided on the side of an auxiliary tank on which the cartridge tank is placed. When the valve is opened and liquid is transferred from the cartridge tank into the auxiliary tank, and liquid is used from the auxiliary tank, the liquid in the cartridge tank is gradually transferred to the auxiliary tank according to the amount used. For example, the term "fan heater" refers to a syringe convenient for replenishing the cartridge tank with kerosene when the cartridge tank becomes empty in a heating device that uses kerosene as fuel.

[Background technology]

Conventionally, for example, in kerosene fan heaters, a cartridge type tank as shown in FIG. 4 has often been used to replenish kerosene as fuel. As is well known, in the cartridge tank 1, an opening cylinder 2 having two large openings into which the discharge pipe of a pump (not shown) can be easily inserted during replenishment is airtightly fixed to the hole IA at the bottom of the cartridge tank 1 by its flange 2C. A male thread 2B is formed in the open tube 2.

A cap 3 having a female thread 8B screwed into the male thread 2B is tightened through a packing material 4 made of a material such as rubber, and a valve hole 8A is provided at the center of the bottom of the cap 8.
This valve hole 8A is always given a restoring force by a spring 48 so that it is sealed by a packing material 6 such as a rubber O-ring fitted into the valve 7. The valve 7 is supported so as to be movable up and down by a guide tube 45 formed into a substantially cylindrical shape by deep drawing press processing or the like. The guide tube 45 has a flange portion 45A attached to the cap 8.
It is fixed by a method such as welding. In addition, guide tube 4
5 has a 45B communication hole bored on the side. As shown, the cartridge tank 1 is placed on the auxiliary tank 40 in normal use. A large hole 40A is bored in the center of the auxiliary tank 40, and a pot-shaped container 41 is supported by the flange portion 41 of the hole 40A. A projection 41B is fixed to the bottom of the container 41, and this projection 41B pushes the recess of the valve 7 provided in the cap 8 of the cartridge tank 1 upward against the restoring force of the spring 48. The packing material 6 is opened from the valve hole 8A, and the liquid in the cartridge tank 1 flows out from the valve hole 8A into the container 41 along with the air. Since a hole 410 is bored in the bottom of the container 41, the liquid that flows out enters the auxiliary tank 40, and the air inside the auxiliary tank escapes to the outside air through the air hole 41D provided at the top of the container 41. It has become. The level of the liquid flowing out from the cartridge tank 1 is increased in the auxiliary tank 40 and in the container 4.
1 and opens the 8 valve holes, the outflow of liquid from the cartridge tank 1 will stop naturally.

When fuel is used from a fuel supply port 40B to a burner (not shown) provided in the auxiliary tank 40, the auxiliary tank 40
When the liquid level in the cartridge tank 1 decreases and the level in the container 41 also decreases to below the valve hole 3A, air flows into the cartridge tank 1.
As a result, liquid flows out from the valve hole 3A again until the valve hole 3A is closed by a rise in the liquid level, and is supplied in accordance with the amount of liquid consumed.

When the liquid in the cartridge tank 1 is empty, lift the cartridge tank above the auxiliary tank 40, reverse its position, and turn the screw 8B of the cap 8 to remove the cap 8.
Pump out the kerosene contained in a kerosene can with a capacity of, for example, 18 liters through the two large holes in the opening tube 2 using a well-known manual or electric pump and inject it into the cartridge tank 1. The operator refilled the liquid while looking at the gauge plate IC, which was airtightly attached to the level gauge hole IB near where the liquid in the tank 1 was almost full. Furthermore, a handle ID for transporting the cartridge tank is attached to the mounting plate IE. In this way, conventionally, when replenishing the cartridge tank 1 with liquid, it was necessary to remove the cap part 8, which was immersed in the liquid in the auxiliary tank and covered with oil during normal use of the cartridge tank, so it was difficult to do so by hand. It is unavoidable that the cap will become dirty with an oily odor, and it is necessary to close the cap 8 tightly and airtight after refilling. Regardless of the amount reduced by combustion, the oil spills out in a liquid state, staining the surrounding area with oil, and if there is a source of ignition in the vicinity, there is a risk of a fire. .

[Summary of the invention]

The injector for a cartridge tank of the present invention eliminates the above-mentioned drawbacks, and its gist is that when the conventional cartridge tank is used, the liquid in the IJ can be pumped through the valve by a protrusion provided on the auxiliary tank. The valve hole, which is closed by a spring or the like except when it is opened to inject into the auxiliary tank, is also used as a replenishment hole to the cartridge when it is empty, and this valve and valve hole are provided as in the past. It goes without saying that there is no need to remove the cap, and it is possible to replenish liquid into the cartridge tank without touching it with your hands. It has a part that can be attached to the tip of the discharge pipe of the pump, and a protrusion into which the valve hole can be inserted, and the protrusion has a small passage for liquid, and the liquid flows into the cartridge tank from this passage for replenishment. This invention relates to a syringe that prevents the inflowing liquid from flowing back through the valve hole when discharging air corresponding to the amount of liquid out of the cartridge tank.

[Embodiments of the invention]

Fig. 1 shows the valve hole 8A when the cartridge tank 1 shown in Fig. 4 is placed in a reverse position opposite to the normal use position.
This is an enlarged view of the vicinity of the cap 3, which has a cap 3. However, compared to the conventional example shown in FIG. The free length of the spring 8 for pressing against 3A is quite long. Furthermore, a bottom portion 5B is fixed to the guide tube 5, and as will be described later, the guide tube prevents the liquid flowing out from the hole 10B of the tip 10A of the injector from flowing into the cartridge tank 1 during liquid injection. A liquid outflow port 5D and an exhaust port 5C for discharging air in an amount corresponding to the amount of liquid that has flowed in are provided in the upper part of the figure.

The present invention is designed to push down the valve 7 from the valve hole 8A of such a cartridge tank against the reaction force of the spring 8. discharge pipe 9
This is a syringe 10 that is attached to the tip 9A of the syringe.

The syringe 10 is molded from a material such as plastic, and its central portion as shown in the figure has a shape that is easy to handle by hand, such as a cylindrical shape, and the tip of a long cylindrical protrusion 10A extending downward is a valve. This is the part that pushes down 7 and is the protruding part 1
An opening 10B through which the liquid flows out is bored near the tip of the 0A, and an opening 10B is inserted above to fix the tip 9A of the discharge pipe 9 of the well-known pump mentioned above that pumps up the liquid so that the liquid does not leak. A partial IOC is inserted into the inner diameter of the distal end 9A of the discharge pipe, and a male thread IOD, for example, is formed at the base of the inserted portion 10C. Pump discharge pipe tip 9A
A cylindrical frame 10E is placed on the outside of the cylindrical frame 10E, and a female thread IOF formed at the bottom of this frame 10E is screwed into the male thread IOD described above to securely connect the discharge pipe 9 to the syringe 10 and prevent liquid from leaking. You can connect to. The syringe 10 is inserted with its protrusion 10A through the valve hole 3A of the cap 8 as shown in the figure, and fixed in a predetermined position by, for example, hooking a pair of stops 10■ onto a pair of protrusions 8C fixed to the cap 8. This fixation is achieved by fixing a permanent magnet piece to the portion of the syringe 10 facing the cap 8, for example, at the position of LOG shown by the dotted line, and applying its attractive force to the fixation if the cap 8 is a ferromagnetic material. Alternatively, it is not necessarily necessary for the father and son to hold the syringe 10 in a predetermined position as long as the work time is short. The other symbols explained in FIG. 4 are similar animals, so their repeated description will be omitted.

If the suction side of a manual pump or an electric bonder is placed in a can containing liquid, such as 18 liters, and the pump is pumped in a well-known manner, the liquid will pass from the discharge pipe 9 into the syringe 10 and into the protrusion. It flows down into the cartridge tank 1 from the opening 10B at the tip of 10A. The air removed by the inflow of liquid is discharged through an exhaust port 5 bored above the guide tube 5.
It escapes to the atmosphere from the gap between the eight valve holes C and the root of the protrusion 10A. What is important here is to take care that the liquid sent by the pump and flowing out from the opening 10B of the syringe does not exist in the air exhaust passage between the exhaust port 5C and the valve hole 8A. For this purpose, it is necessary to ensure a sufficient length of the guide tube 5 and a sufficient distance between the guide tube's outlet 5D and exhaust port 5C. Alternatively, the cylindrical surface of the guide tube 5 may have a structure with many holes, such as a reed or wire mesh.

Next, another embodiment will be described with reference to FIGS. 2 and 8. In this embodiment, the valve that shuts off the valve hole has two stages, unlike the previous embodiment. That is, in order to close the valve hole 11A, a packing material 18A such as a rubber O-ring inserted into the first valve 13 is pressed against the valve hole 11A, and a packing material attached to the second valve 14 is pressed against the valve hole 11A. 1
The difference is that this is achieved by pressing 4A from inside the first valve 18. A cup-shaped cylinder 11 corresponding to the open cylinder and cap of the above-mentioned example is airtightly fixed to the cartridge tank 1 by its flange part 11B. The guide cylinder 12 has its flange portion 12A fixed to the cylinder body 11 by a method such as welding. On the bottom surface 12B of the guide cylinder opposite to the flange portion 12A, there is an introduction pipe 1 having a liquid outlet 18C extending downwardly from the first valve 18 in the center.
A hole is drilled into which 8B is loosely fitted. The first valve 18 has a portion that slides on the inner surface of the guide cylinder 12, a portion with a medium and small diameter on the other side, and an introduction pipe 18B with a small diameter, the lower end of which serves as a liquid outlet 180.

The second valve 14 has holes 14B1 to 14B5 that serve as liquid flow paths, as shown in FIG. 8, a plan view viewed from the packing material 14A side.
has. A coiled spring 16 is fitted in the lower part of the figure opposite to the side where the packing material 14A is attached, and the first valve 18
A repulsive force is applied between the discharge part 18B and the stepped part 18E connected to the upper part of the discharge part 18B. Upper step 18D of first valve 18
A coiled spring 15 also applies a repulsive force between the guide tube 12 and the bottom surface 12B of the guide tube 12. Therefore, the state shown in FIG. 2 is a state in which the first valve 18 and the second valve 14 are opened by the syringe 20 against the repulsive forces of the springs 15 and 16.

The syringe 20 is made of a material such as glass, and generally consists of a thick tip-shaped portion, an upper narrow portion, and a central portion.

In the center, there is a cylindrical body 2OA having a hole through which the liquid passes.The tip, that is, the lower end in the figure, contacts the packing material 18A attached to the upper part of the first valve 18, so that the cylindrical body 2OA and the second valve are in an airtight state. It is connected to the valve 18 of No. 1 and positioned so as to open the valve hole 11A. A push rod 2OB for opening the second valve 14 is provided through the center of the cylindrical body 2OA, and its upper end is fixed by a support portion 200 through which liquid can pass. As can be seen from the plan view of the second valve shown in FIG. 8, the structure of the support portion 200 includes holes of 20 DI to 20 Ds. The upper part of the syringe 20 has an insertion part 20E for fixing the distal end 9A of the discharge pipe 9 of a well-known pump so as not to leak liquid, and an insertion part 20E is inserted into the inner diameter of the distal end 9A of the discharge pipe, and the insertion part 20E is attached to the base of the insertion part 20H. A male thread 20F is formed. A cylindrical frame 20G is fitted on the outside of the distal end 9A of the discharge pipe, and an acid screw 20 formed below this frame 20G
H is screwed into the male thread 20F to reliably connect the discharge pipe 9 to the syringe 20 to prevent liquid from leaking.

Therefore, if a well-known pump is operated to pump up liquid from, for example, an 18-liter kerosene can and let it flow out from the discharge pipe 9, the liquid will pass through the holes 20D1 to 20D5 of the support portion 20C and be connected to the cylindrical body 2OA and the push rod 20B. The holes 14B1 to 14B of the second valve 14 pass through the space between them and enter the first valve 18.
5, passes through the inlet pipe 18B of the first valve, and flows out from the outlet 18C into the cartridge tank.

The air in the tank corresponding to the amount of liquid to be replenished into the cartridge tank is passed from the exhaust port 12C bored near the 7th flange of the guide tube 12 through the gap between the valve hole 11A and the outer diameter of the cylindrical body 2OA. Since it is released into the atmosphere, the liquid pumped up very smoothly fills the cartridge tank 1, and the pump can be stopped when the appropriate level is reached by checking the level gauge as shown in Figure 4. . Additionally, a flange 20J is provided on the syringe as a stop for the syringe 20,
The clasp 110 of the hook 20J is connected to the tap-shaped cylindrical body 11.
It is preferable to provide the

〔Effect of the invention〕

As described above, according to the present invention, by making a slight modification to the conventional one, there is no need to remove the cap every time the liquid is replenished into the cartridge tank, and there is no need to remove the cap every time the liquid is replenished into the cartridge tank. It is troublesome, and if the cap is not installed correctly after refilling, a large amount of liquid leaks outside in addition to the leakage of liquid in the cartridge tank due to normal use, which can lead to a fire if it is a kerosene stove. The effect of preventing this from happening is extremely large.

[Brief explanation of drawings]

FIG. 1 shows a longitudinal sectional view of a syringe according to an embodiment of the present invention, and shows the device installed in a cartridge tank in order to explain the state of liquid replenishment. FIG. 2 shows a longitudinal sectional view of a syringe according to another embodiment of the present invention, and shows the syringe installed in order to explain the state in which liquid is supplied to the cartridge tank. FIG. 8 shows a plan view of a portion of FIG. FIG. 4 is an elevational view showing a conventional cartridge tank placed on an auxiliary tank, showing main parts in a broken section. 1... Cartridge tank, 3A.
11A-... Valve hole, 5C/12 (3...
...Exhaust port, 7/18/14...
・Valve, 10・20... Injector, 40...
......Auxiliary tank, Fig. 3 6.1: 9A, 14A...-River...Patzkin material, 9...
.......Discharge pipe, 10A/2OA...Protrusion, 41B...
······protrusion. Figure 4

Claims (1)

[Claims] Replenishes liquid into a cartridge tank that is sealed except for the liquid take-out valve hole, which has a valve that is opened by a protrusion on the auxiliary tank when in use and closed when transported for replenishment, etc. A protrusion inserted into the valve hole, which is connected to a discharge pipe of a well-known liquid replenishment pump so as not to leak, and has a function as a pipe for introducing liquid into the cartridge tank. This protruding part introduces liquid into the inside of the cartridge tank, and when the liquid in the cartridge tank is splashed and an amount of air corresponding to the amount of liquid injected is discharged from the cartridge tank to the outside, it obstructs the air passage. A cartridge tank, characterized in that the air passage is ensured between the valve hole and the protrusion, so that liquid can be replenished using the valve hole. syringe.