JP2668074B2 - Injector for cartridge tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] In the present invention, a valve provided on a lower surface in a posture when a cartridge tank is used is pushed up by a projection provided on an auxiliary tank side on which the cartridge tank is mounted. When the valve is opened, the liquid is transferred from the cartridge tank into the auxiliary tank, and when the liquid is used from the auxiliary tank, the liquid in the cartridge tank is gradually transferred to the auxiliary tank according to the amount of use, for example, a fan BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injector convenient for supplying kerosene to a cartridge tank when the cartridge tank is emptied, in a heater using kerosene as a fuel, which is called a heater. [Background Art] Conventionally, for example, in a petroleum fan heater, a cartridge type tank as shown in FIG. 4 is often used to replenish fuel kerosene. As is well known, cartridge tank 1
An opening cylinder 2 having a large opening 2A into which a discharge pipe of a pump (not shown) can be easily inserted at the time of replenishment is hermetically fixed to a hole 1A at the bottom of the cartridge tank 1 by a flange portion 2C. The male screw 2B is formed on the. A cylindrical cap 3 having a female screw 3B screwed into the male screw 2B is fastened via a packing material 4 made of a material such as rubber, and a valve hole 3A is formed at the center of the bottom of the cap 3. The valve hole 3A is pierced and is always provided with a restoring force by a spring 43 so as to be 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 vertically movable by a guide cylinder 45 made into a substantially cylindrical shape by deep drawing press working or the like. The guide cylinder 45 has its flange 45A fixed to the cap 3 by a method such as welding. The guide cylinder 45 has a through hole 45B on the side surface. The cartridge tank 1 is placed on the auxiliary tank 40 in a normal use state as shown in the figure. The auxiliary tank 40 has a large hole 40A at the center thereof, and a cup-shaped container 41 is supported by the flange portion 41A in the hole 40A. A projection 41B is fixed to the bottom of the container 41, and the recess of the valve 7 provided on the cap 3 of the cartridge tank 1 is pushed upward by the projection 41B, and the valve hole is pressed against the restoring force of the spring 43. The packing material 6 is separated from 3A, and the liquid in the cartridge tank 1 flows out of the valve hole 3A into the container 41 instead of air. At the bottom of the container 41
Since the hole 41C is formed, the outflowing liquid enters the auxiliary tank 40, and the air in the auxiliary tank escapes from the air hole 41D provided in the upper part of the container 41.
When the level of the liquid flowing out of the cartridge tank 1 rises in the auxiliary tank 40 and the container 41 and exceeds the valve hole 3A, the flow of the liquid from the cartridge tank 1 stops naturally.
When fuel is used from a fuel supply port 40B to a burner (not shown) provided in the auxiliary tank 40, the level of the liquid in the auxiliary tank 40 decreases, and the level in the container 41 also decreases. Is refilled into the cartridge tank 1 so that the liquid again flows out of the valve hole 3A until it is closed by a rise in the level of the liquid and is supplied according to the amount of liquid consumed. There is. When the liquid in the cartridge tank 1 becomes empty, the cartridge tank is pulled up from the auxiliary tank 40, the posture is reversed, the screw 3B of the cap 3 is turned, the cap 3 is removed, and the cap 3 is removed. For example, kerosene in a kerosene can having a capacity of about 18 liters is pumped out by a well-known manual or electric pump and injected into the cartridge tank 1, and a level near the liquid volume in the cartridge tank 1 is almost full. The operation of replenishing was performed while looking at the gauge plate 1C airtightly attached to the gauge hole 1B. A handle 1D for transporting the cartridge tank and the like is attached by an attachment plate 1E. As described above, conventionally, when the cartridge tank 1 is replenished with the liquid, the cap portion 3 immersed in the liquid in the auxiliary tank and having the oil adhered thereto must be removed when the cartridge tank is normally used. It is necessary to close the cap 3 tightly and tightly after replenishment, and it is necessary to keep the cap in a normal posture if it is not completely closed. In addition to the fact that oil spills out in a liquid state and contaminates the surroundings with oil irrespective of the amount reduced by combustion at the time of burning, there is a disadvantage that if a fire is inadvertently nearby, a fire may be caused . [Summary of the Invention] The cartridge tank injector of the present invention eliminates the above-mentioned drawbacks. The gist of the invention is that the liquid in the cartridge is provided by a projection provided on the auxiliary tank in a posture when the conventional cartridge tank is used. The valve hole which is closed by a spring etc. except for opening the tank and pouring it into the auxiliary tank is also used as a supply hole for the cartridge when the cartridge is empty, and this valve and valve hole are provided as in the past. Needless to say, it is not necessary to remove the cap, it is an injector that can replenish the liquid in the cartridge tank without touching it with any hand, and it is conventionally used, for example, manually pumped siphon type or electric type A portion adapted to be attached to the distal end of the discharge pipe of the pump, and a projection which can be inserted into the valve hole, and at least a liquid passage is provided in the projection. The present invention relates to an injector for preventing the inflowing liquid from flowing back through the valve hole when air corresponding to the amount of liquid flowing in from the passage in the cartridge tank is discharged out of the cartridge tank. [Embodiment of the Invention] FIG. 1 shows a valve hole 3A when the cartridge tank 1 shown in FIG. 4 is placed in a reverse posture opposite to the posture in a normal use state.
2 is an enlarged view of a portion including a cap 3 which is a cylindrical body having the above. However, as compared with the conventional example shown in FIG. 4, the length of the guide cylinder 5 in which the flange 5A is attached to the cap 3 substantially concentrically with the valve hole 3A by welding or the like, and the rubber O-ring attached to the valve 7 The free length of the spring 8 for pressing the packing material 6 into the valve hole 3A is considerably long. Further, a bottom portion 5B is fixed to the guide cylinder 5, and the liquid flowing out of the hole 10B of the tip 10A of the injector during the liquid injection is prevented from flowing into the cartridge tank 1 by the guide cylinder as described later. Outlet 5D for the liquid and an exhaust port for discharging air corresponding to the amount of liquid that has flowed in
5C is provided above the drawing. The present invention is mounted on the distal end 9A of a discharge pipe 9 of a well-known plastic manual pumping siphon pump or an electric kerosene pump, which is conventionally used, and is mounted through the valve hole 3A of the cartridge tank as described above. Is pressed down against the reaction force of the spring 8 to inject the liquid into the cartridge tank. The injector 10 is formed of, for example, a material such as plastic, and has a central portion shown in the figure having a shape that is easy to handle by hand, for example, a cylindrical shape. Is the part that pushes down the protrusion 10A
An opening 10B through which liquid flows out is drilled in the vicinity of the tip, and an insertion part for fixing the tip 9A of the discharge pipe 9 of the well-known pump for pumping the liquid up above so as not to leak the liquid. 10C is inserted into the inner diameter of the distal end 9A of the discharge pipe, and for example, a male screw 10D is formed at the base of the inserted portion 10C. A cylindrical frame is located outside the tip 9A of the pump discharge pipe.
Female screw 10F covered with 10E and formed below this frame 10E
Is screwed into the male screw 10D described above to securely connect the discharge pipe 9 to the injector 1
It can be connected so that liquid does not leak to 0. As shown in the figure, the injector 10 is provided with a protruding portion 10A and a valve hole 3 of the cap 3.
Inserted from A, for example, a pair of stoppers 10H are hooked on a pair of projections 3C fixed to the cap 3 and fixed at predetermined positions.
This fixation can be performed by fixing the permanent magnet piece to a portion of the injector 10 facing the cap 3, for example, at a position 10G indicated by a dotted line, and using the attraction force if the cap 3 is a ferromagnetic material to utilize it. Even if the injector 10 is held at a predetermined position by hand, it is not always necessary if the working time is short. The other symbols described in FIG. 4 have the same effect and need not be described again. The suction side of a manual pump or an electric pump is put into a can containing 18 liters of liquid, for example, and is pumped up by a well-known operation. It flows down into the cartridge tank 1 through the opening 10B at the tip of 10A. The air removed by the inflow of the liquid flows from the exhaust port 5C formed above the guide cylinder 5 through the valve hole.
It escapes to the atmosphere through the gap between the root of 3A and the protruding portion 10A. The important thing here is that it is pumped by the injector opening 10B.
It is necessary to take care that the liquid flowing out of the air does not exist in the air exhaust passage between the exhaust port 5C and the valve hole 3A. For this purpose, the length of the guide tube 5, the outlet 5D of the guide tube and the exhaust port 5C
It is necessary to keep a sufficient distance from. As another method, a configuration may be adopted in which the cylindrical surface of the guide cylinder 5 has a large number of holes such as a collapsible wire mesh. Next, another embodiment will be described with reference to FIGS. In this embodiment, the valve for shutting off the valve hole has two stages different from the above-described embodiment. That is, in order to close the valve hole 11A, a packing material 13A such as a rubber O-ring mounted on the first valve 13 is pressed into the valve hole 11A, and a packing material 14A mounted on the second valve 14 is pressed. Is achieved by pressing from inside the first valve 13. In the cartridge tank 1, a cup-shaped cylinder 11 corresponding to the opening cylinder and the cap of the above-described example has a flange portion 11B.
It is fixed airtightly by. The guide tube 12 has its flange portion 12A fixed to the tube body 11 by a method such as welding. The bottom surface 12B of the guide cylinder opposite to the flange portion 12A is provided with a hole in the center of which an introduction pipe 13B having a liquid outlet 13C extending below the first valve 13 is loosely fitted. First valve 1
3 has a portion that slides on the inner surface of the guide tube 12, a portion with a slightly smaller diameter than that, and an introduction tube 13B with a smaller diameter. The lower end has an opening on the extension of the cylindrical body 20A of the injector 20 described later. It is the outlet 13C for the dripping liquid. Second valve 14 is packing material 14A
As shown in Fig. 3 when viewed from the side, holes that serve as liquid flow paths
14B _{1 to} 14B ₅ . A coil-shaped spring 16 is fitted on the lower side of the drawing opposite to the side on which the packing
A repulsion force is applied between the valve 13 and the step 13E connected to the upper part of the introduction pipe 13B of the valve 13. A coil-shaped spring 15 also provides a repulsive force between the upper step portion 13D of the first valve 13 and the bottom surface 12B of the guide cylinder 12. Therefore, the state shown in FIG.
Thus, the first valve 13 and the second valve 14 are opened against the repulsive force of the springs 15 and 16. The injector 20 is formed of a material such as plastic, for example, and generally includes a cup-shaped thick portion, an upper small-diameter portion, and a central portion. At the center is a cylindrical body 20A which is a projection having a hole through which a liquid passes, and the tip, ie, the lower end in the figure, is a packing material mounted on the upper part of the first valve 13.
The cylindrical body 20A and the first valve 13 are connected to each other in an airtight state in contact with 13A, and are positioned so as to open the valve hole 11A. Cylindrical body 20A
A push rod 20B for opening the second valve 14 is penetrated at the center thereof, and an upper end thereof is fixed by a support portion 20C through which a liquid passes. Structure of the support unit 20C 20D ₁ to as can be seen by reference to a plan view of the second valve shown in FIG. 3
20D ₅ made hole is drilled. The upper part of the injector 20 has an insertion part 20E for fixing the tip part 9A of the discharge pipe 9 of the well-known pump so that the liquid does not leak. The insertion part 20E is inserted into the inner diameter of the tip part 9A of the discharge pipe. Male screw 20F is formed. A cylindrical frame 20G is fitted outside the distal end 9A of the discharge pipe, and a female screw 20H formed below the frame 20G is screwed into the male screw 20F to securely insert the discharge pipe 9 into the injector. It is connected to 20 so that liquid does not leak. Thus, well-known if ask pump flow out from the discharge pipe 9 by pumping the liquid from the example, 18 liter of kerosene cans by operating the liquid support portion 20C of the holes 20D ₁ to 20D ₅ streets tubular body 20A
Through the space between the push rod 20B and the push rod 20B, through the first valve 13, through the holes 14B _{1 to} 14B ₅ of the second valve 14, and the inlet pipe 13B of the first valve.
Through the outlet 13C, which is an opening, into the cartridge tank. The air in the tank according to the amount of liquid supplied to the cartridge tank flows from the exhaust port 12C drilled near the flange of the guide cylinder 12 to the atmosphere through the gap between the valve hole 11A and the outer shape of the cylindrical body 20A. Since the liquid is discharged, the liquid pumped up by the pump is filled very smoothly in the cartridge tank 1 and the pump may be stopped when the liquid reaches an appropriate amount by looking at the level gauge as shown in FIG. It is preferable that a hook 20J is provided on the injector as a stopper for the injector 20 and that a catch 11C for the hook 20J is provided on the cup-shaped cylindrical body 11. [Effects of the Invention] As described above, according to the present invention, it is not necessary to remove the cap every time the liquid is replenished in the cartridge tank by performing only a small amount of processing on the conventional one, and the hand generated for that purpose is not required. The trouble such as dirt can be eliminated. In addition, as shown in the figure, an opening for discharging liquid into the cartridge tank is provided at least on the inner side of the cartridge tank with respect to the end surface opposite to the surface provided with the valve hole of the cylindrical body, so that the outlet and the exhaust port are provided. The cartridge is designed so that it does not obstruct the air passage due to splashing of liquid in the cartridge tank when injecting, and the amount of liquid flowing in without flowing back from the valve hole is reduced. The corresponding amount of air is discharged out of the cartridge tank. Also, after refilling with the conventional one, the cap is not properly mounted and it leaks in large quantities in addition to the leakage of the liquid in the cartridge tank due to normal use, and in the case of an oil stove this may cause a fire In the present invention, since the cap is not removed even when injecting liquid, a situation that may possibly occur can be prevented in advance, and the effect is extremely large.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view showing an injector according to an embodiment of the present invention, and shows a state where the injector is mounted on a cartridge tank for explaining a replenishing state of a liquid. FIG. 2 is a longitudinal sectional view showing an injector according to another embodiment of the present invention, and shows a state in which the injector is mounted for explaining a state of supplying a liquid to the cartridge tank. FIG. 3 shows a plan view of a part of FIG.
FIG. 4 is an elevational view showing a main part of the conventional cartridge tank in a state in which the cartridge tank is placed on an auxiliary tank, in a cutaway view. 1 ... Cartridge tank, 2 ... Open cylinder, 3 ... Cap (cylinder), 3A / 11A ... Valve, 5/12 ... Guide cylinder, 5C / 12C ... Exhaust port, 5D ... Outlet , 6 / 13A / 14A packing material, 7/13/14 valve, 9 discharge pipe, 10/20 injector, 10A / 20A projecting part, 10B opening part, 11 ... ... Cylinder, 13C ... Outlet (opening), 40 ... Auxiliary tank, 41B ... Protrusion.

Claims (1)

(57) [Claims] In a posture at the time of use, the valve hole is opened by a projection provided on the auxiliary tank, and the valve is biased so as to be closed in a state of being transported for replenishment or the like. The liquid take-out valve hole, which is provided in a guide cylinder fixed substantially concentrically to the guide cylinder and has the guide cylinder provided with an exhaust port in the vicinity of the fixed portion integrally or via an opening cylinder, is provided. An injector for supplying liquid to a cartridge tank having a sealed structure. The injector is connected to a distal end of a discharge pipe of a well-known liquid supply pump so as not to leak liquid, and is inserted into the valve hole to supply the liquid to the cartridge. A projection having a function as a pipe to be introduced into the tank, wherein the liquid discharged from the opening provided in the projection is discharged into the cartridge tank through an outlet provided in the guide cylinder. In order to prevent the discharged liquid from directly hitting the inside of the cylinder or the inside of the opening cylinder, the entire opening for discharging the liquid into the cartridge tank at the time of discharging the liquid is positioned vertically with the outlet of the guide cylinder. In addition, the opening portion is located closer to the inside of the cartridge tank than the surface of the cartridge tank on which the cylindrical body or the opening cylinder is attached, so that the distance between the outlet and the outlet is sufficiently increased, and An injector for a cartridge tank, characterized in that liquid is not obstructed in the tank due to splashing or the like, and that the liquid can be supplied using the valve hole.