JPH07113446B2 - Liquid transfer device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid transfer device that transfers liquid from a first liquid storage container to a second liquid storage container.

2. Description of the Related Art In FIG. 5, reference numeral 1 denotes a cartridge tank conventionally used in an oil heater, to which a base 2 is attached. An opening 3 is formed in the center of the base 2.

A valve body 4 for opening and closing the opening 3 is provided in the base 2 while being biased in a “closed” direction by a compression spring 5. When refilling the cartridge tank 1, the mouthpiece 2 is installed on the floor 7 with the mouthpiece 2 on the upper side, and the mouthpiece 2 is removed from the refueling mouth portion 6 to refuel using a pump (not shown) or the like.

However, with the above-mentioned configuration, when refilling the cartridge tank 1, kerosene adheres to the hand when the mouthpiece 2 is removed from the refueling port portion 6, which makes it uncomfortable. Further, there is a problem that opening and closing of the base 2 is troublesome.

Therefore, there has been proposed a device as shown in FIG. 6 as a device capable of supplying a liquid such as kerosene to the cartridge tank 1 without removing the mouthpiece 2 and keeping the hands clean. In FIG. 6, when refueling the cartridge tank 1, the discharge side pipe 8 is pushed down while the valve body 4 is pushed down against the compression spring 5 by the tip of the discharge side pipe 8 with the mouthpiece 2 of the cartridge tank 1 facing up. The holder 9 is inserted into the mouthpiece 2 through the opening 3, the holder 9 covers the periphery of the mouthpiece 2, and the annular convex portion 10 of the mouthpiece 2 is engaged with the engagement concave portion 11 of the holder 9. Hold the base 2. By operating the oil supply pump 12 in this state, kerosene is sucked up from a kerosene tank (not shown) through the pipe 13 as shown by a dashed arrow A in FIG. 6, and passes through the notch portion 14 of the discharge pipe 8 to the cartridge tank. 1, the air in the tank 1 is discharged to the outside from the opening 3 of the mouthpiece 2 and the degassing hole 15 of the holder 9 as shown by the alternate long and short dash line arrow B. (For example,
DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-mentioned configuration, when the discharge side pipe 8 is removed from the mouthpiece 2 after refueling, the discharge side pipe 8 is removed.
The kerosene remaining inside or in the pipe 13 hangs down along the tip of the discharge side pipe 8 and pollutes the outside of the base 2 and the outside and the surroundings of the cartridge tank 1 with the dripping kerosene. There have been problems such as the hand being soiled when holding the cartridge tank 1 after refueling and the location of refueling being restricted due to soiling of the surroundings.

The present invention solves such a conventional problem, and an object of the present invention is to provide a liquid transporting device that can refuel without removing the mouthpiece from the cartridge tank and that does not stain the hands or the surroundings of the cartridge tank.

Means for Solving the Problems In order to solve the above problems, a liquid transfer apparatus according to the present invention includes a first liquid storage container, a pump unit for transferring the liquid in the first liquid storage container, and a second liquid storage device. The liquid storage container is provided with a mouthpiece having a valve body, and an adapter that can be removably attached to the mouthpiece and communicates with the liquid in the first liquid storage container through a pipe line, the mouthpiece and the adapter. The liquid is provided with an adapter valve body in which the discharge pipe of the adapter pushes the valve body open by the connection of the above, and the discharge port of the discharge pipe is opened at this time and the discharge port of the discharge pipe is closed when the adapter is removed from the mouthpiece. It is provided with a configuration of a transport device.

The present invention has the above-described configuration, and at the time of liquid transfer, by mounting and coupling the adapter to the mouthpiece of the second liquid storage container, the valve body of the mouthpiece is pushed open by the tip of the discharge pipe of the adapter. The adapter valve provided on the discharge pipe also opens the discharge port. Next, by operating the pump unit in this state, the liquid is transported from the first liquid storage container to the second liquid storage container by the pump unit. At this time, the liquid is discharged from the discharge port to the second liquid storage container through the discharge pipe of the adapter, and at the same time, the air in the second liquid storage container is discharged from the mouth of the base and the discharge pipe. Is discharged to the outside of the second liquid storage container through the gap between and. That is,
During refueling, the flow resistance due to the residual air is small, and the refueling can be done quickly in a short time, and the liquid can be refilled without the hands leaking out without the liquid leaking out from the vicinity of the joint between the adapter and the base. Further, after the liquid has been transported and the pump unit has stopped operating, when the adapter is detached from the mouthpiece, the adapter valve body acts so as to close the discharge port of the discharge pipe, and the post-lubrication discharge side pipe is capped as before. When removed from the discharge side pipe, it is possible to prevent the residual kerosene in the pipe from dripping from the tip of the discharge side pipe, and the problem of soiling the hands and the surroundings of the cartridge tank is solved. Not only that, but after completing the liquid transfer and stopping the operation of the pump unit, conventionally, in order to reduce the amount of dripping, the discharge pipe was pulled out after waiting for a while until the amount of residual kerosene in the pipe became small. Even if the product is pulled out immediately after the pump unit is stopped, the adapter valve body works so as to close the discharge port when the discharge pipe of the adapter is pulled out from the mouthpiece. The effect is obtained.

Embodiments Embodiments of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, FIG. 2, FIG. 3, and FIG. 4, the first liquid storage container 16 is a plastic tank for storing kerosene, and a control unit 19 is provided above a pump unit 18 having a suction unit 17.
And a hose 21 is connected between the adapter 20 and the pump unit 18. The state shown in FIG.
Is attached and coupled to the mouthpiece 23 of the cartridge tank, which is the second liquid storage container 22, and is in the state of refueling. Again 24
Is an oil amount display section.

2 shows the adapter 20 and the second liquid container 22 shown in FIG.
2 shows the structure of the joint portion of the cartridge tank with the base 23 and the vicinity thereof. 3 and 4 show the configurations of the adapter 20 side, the mouthpiece 23 and the second liquid storage container 22 side, respectively, when the adapter 20 and the mouthpiece 23 are not connected. First, the adapter 20 has a hooking claw portion 26 that is hooked on the lower end portion 25 of the mouthpiece so that it can be attached to and detached from the mouthpiece 23 with one touch, and a handle portion 27 that opens and closes by a gripping operation of the jaw 26. The drawing shape forms a substantially H shape. Further, a hose connecting portion 28 for connecting a hose 21 which guides the liquid from the first liquid container 16 is provided at the upper center of the substantially H-shaped adapter 20, and a lower hose connecting portion 28 is provided at the lower center of the substantially H-shaped adapter 20. A discharge pipe 30 that discharges the liquid, which is inserted into the opening 29 of the mouthpiece 23 and is conveyed from the first liquid storage container 16, into the second liquid storage container 22, is integrally formed of resin. Also, the tip 31 of the discharge pipe 30
The vicinity is tapered so that the discharge pipe 30 can be easily inserted into the opening 29 of the mouthpiece 23. When the adapter 20 is attached to the mouthpiece 23, the discharge port 32 opened on the side surface of the discharge pipe 30 is
It is provided at a position lower than the lower end 25 of the base. Further, the cylindrical adapter valve body 33 that slides in close contact with the outer peripheral surface of the discharge pipe 30 is urged by the spring 34 in the direction of closing the discharge port 32. The flange portion 35 of the adapter valve body 33 is configured to be larger than the diameter of the opening portion 29 of the mouthpiece 23. Further, the collar portion 35 is formed with a groove 36 for securing a gap through which air can flow when the collar portion 35 is in contact with the opening 29.
Furthermore, two annular ring-shaped projections 37 are formed near both ends of the inner surface of the adapter valve body 33 to enhance the sealing effect. Moreover, the collar portion 35 is formed on the side far from the discharge pipe tip 31, and when the discharge pipe 30 is inserted into the opening portion 29 of the mouthpiece 23, the collar portion is formed after a part of the adapter valve body 33 completely enters the mouthpiece 23. The portion 35 abuts the opening 29 and starts to open the discharge port 32. Conversely, when the discharge pipe 30 of 23 is pulled out from the opening 29 of the base 23, the adapter valve body 33 opens the discharge port 32 inside the base 23. The adapter valve body 33 is configured to come out of the mouthpiece 23 after closing.

Next, the mouthpiece 23 is screwed and fixed to the mouth screw portion 38 of the second liquid storage container 22, and is sealed with the rubber packing 39. Inside the base 23, there is provided a valve body 42 in which an O-ring 41 for pressing and urging a compression spring 40 is attached to the opening 29 of the base, and the adapter 20 is mounted on the base.
When not coupled to 23, the opening 29 is sealed and closed. That is, the compression spring 40 is an urging means for urging the valve body 42 in a direction in which it is always closed. Further, the spring bearing 38, which is caulked and fixed inside the mouthpiece 23 and outside the valve body 42, is a valve body.
It guides 42. An opening window 44 having a large opening is formed on the side surface of the spring receiver 43. This open window 44
When the adapter 20 is connected to the mouthpiece 23, the opening range of the above is opened at least from the discharge pipe tip 31 to the upper position of the discharge port 32.

In the above configuration, when refueling, the second liquid storage container 22 is installed with the mouthpiece 23 facing upward as shown in FIGS. 1 and 2, and the tip of the discharge pipe 30 of the adapter 20 is attached to the opening 29 of the mouthpiece 23. By the operation of pushing down the valve body 42 while inserting it, the collar portion 35 of the adapter valve body 33 provided on the discharge pipe 30 is moved to the base 23
The adapter valve body 33 opens the discharge port 32 by abutting on the opening 29 and further pushing down the adapter 20. Further, when the adapter 20 is pushed down, the hooking claw portion 26 of the adapter 20 having a substantially H shape as viewed from the front spreads outward, and the lower end portion 25 of the mouthpiece is engaged with the adapter 20.
At this time, between the inner diameter of the opening 29 of the mouthpiece 23 and the outer diameter of the discharge pipe 30, there is a gap that allows the air in the second liquid storage container 22 to flow out of the container 22 with almost no resistance. A groove 36 is provided in the collar portion 35 of the adapter valve body 33 so that the groove can be secured.

Next, in this state, turn on the operation switch 45 and turn on the pump unit.
By operating 18, the liquid is the first liquid container
It is transported from 16 to the second liquid storage container 22 by the pump unit 18. At this time, the liquid flows from the hose 21 through the discharge pipe 30 of the adapter 20 into the second liquid storage container 22 from the discharge port 38 as shown by the solid line arrow in FIG. 2, and at the same time, the second liquid storage container 22. The air in the second liquid storage container 22 passes through the gap between the opening 29 and the discharge pipe 30.
2 is discharged to the outside as shown by the broken line arrow in FIG. At this time,
The discharge port 32 opened in the discharge pipe 30 is at a position lower than the lower end portion 25 of the base 23, so that the liquid does not collide with the inner wall of the base 23 even when the force of the liquid to be discharged is strong. It acts so as to flow into the second liquid storage container 22. Therefore, unlike the conventional case, the liquid does not hit the inner wall of the base 2 and the air and the liquid do not spill out from the opening 3 of the base 2 by the force, and the liquid is smoothly transferred to the second liquid storage container 22. There is an effect that it can be transported. That is, since liquid and air do not collide violently in the mouthpiece 23 during refueling, flow resistance due to residual air is small, refueling can be performed quickly and in a short time, and the adapter 20 and the mouthpiece
The liquid does not leak out from the vicinity of the joint of 23 and the oil can be supplied without soiling the hands.

In addition, as a result of the prototype experiment, the discharge port 38 was
If the liquid is installed at a position about
It was confirmed that there was an effect that the air and liquid would not spill out together from the opening 29 of the mouthpiece 23 by hitting the inner wall of the.

Further, after the refueling is stopped, the grip 27 of the adapter 20 of the substantially H-shape can be lightly pinched to open the hooking claw portion 26 of the adapter 20,
Since the adapter 20 can be easily removed from the mouthpiece 23, the operability is good and the attachment / detachment is easy. Thus, the adapter
With the structure in which the lower end 25 of the base and the base 26 of the base are engaged with each other by engaging the lower end 25 of the base and the claw 26 of the adapter, the adapter 20 can be attached by lightly pushing it in and detached by simply grasping the handle 27 lightly. In this way, the unique effect that the adapter 20 can be attached / detached very easily, easily and surely in one operation is obtained.

When the adapter 20 is removed from the mouthpiece 23 after the liquid has been transported and the pump unit 18 has stopped operating, the adapter valve body 33
Has the effect of closing the discharge port 32 of the discharge pipe 30 and preventing the residual kerosene in the pipe from dripping from the tip of the discharge pipe 30. Therefore, the problem of soiling the hands and the surroundings of the cartridge tank is solved.

Further, the adapter valve body 33 is a cylindrical body which is in close contact with the discharge pipe 30 and is slidable, and is always biased by the spring 34 in the closing direction, and the discharge port 32 opened on the side surface of the discharge pipe 30 is opened and closed. As a result, even if the discharge port 32 is formed as a large hole to reduce the flow path resistance, the closing performance does not deteriorate.

Further, the adapter valve body 33 is always biased by the spring 34 in the closing direction and has a collar portion 35 larger than the opening diameter of the mouthpiece 23,
When inserting the discharge pipe 30 of the adapter 20 into the mouthpiece 23
35 is brought into contact with the opening 29 of the base 23 to open the discharge port 32, and when the discharge pipe 30 of the adapter 20 is pulled out from the base 23, the adapter valve body 33 is pushed back by the spring 34 to close the discharge port 32. As a result, there is an effect that the adapter 20 can be automatically opened / closed in accordance with the operation of attaching / detaching the adapter 20 to / from the mouthpiece 23, without any special trouble of opening / closing the adapter valve body 33 each time. Also, when the adapter 20 is removed from the mouthpiece 23, even if the pump unit 18 is accidentally operated, the adapter valve body 33 closes the discharge port 32, so kerosene blows from the adapter 20 and pollutes the surrounding area. There is a unique effect that can prevent such.

Further, the adapter valve body 33 is formed in a tubular shape, and one or a plurality of annular projections 37 are formed on the inner surfaces near both ends of the tubular shape, respectively, and the adapter valve body 33 has an outer periphery on the side far from the discharge pipe tip 31. By forming the collar 35 near the end,
When attaching or detaching the adapter 20 to or from 23, the adapter valve body 33 must be
It opens and closes in 23 and acts so as not to spill liquid outside.

Not only that, but also liquid transfer is completed and pump unit 18
After stopping the operation of, the discharge pipe was conventionally pulled out after waiting for a while until the amount of residual kerosene in the pipe became small in order to reduce the amount of drooling, but in the present invention, even if it is pulled out immediately after the pump unit stops, the adapter 20 Discharge pipe 30 to base 23
Since the adapter valve body 33 acts so as to close the discharge port 32 when it is pulled out from the device, it is possible to prevent drooping and obtain a unique action effect such as a time saving effect.

Effects of the Invention As described above, the liquid transfer device of the present invention has the following effects.

(1) Since the adapter is detachably attached to the mouthpiece of the second liquid storage container, and it is not necessary to directly touch the mouthpiece with the hand, it is possible to refuel without contaminating the hand.

(2) An adapter valve body is provided in which the discharge pipe of the adapter pushes and opens the valve body by coupling the base and the adapter, and at this time, opens the discharge port of the discharge pipe and closes the discharge port of the discharge pipe when the adapter is detached from the base. With this configuration, when the discharge pipe is pulled out from the base, it acts to prevent kerosene from dripping from the adapter, and there is an effect that the hands and the surroundings of the cartridge tank are not polluted.

(3) Since the discharge valve of the discharge pipe is opened by the connection of the cap and the adapter, and the adapter valve body is closed to close the discharge port of the discharge pipe when the adapter is detached from the cap, when the adapter is removed from the cap, Even if the pump unit is accidentally operated, the adapter valve body acts to close the discharge port, and kerosene does not blow out from the adapter, so that the surrounding area is not polluted and there is a unique effect of being safe.

(4) Since the configuration is provided with the adapter valve body, after the operation of the pump unit is stopped, the discharge pipe can be immediately removed from the mouthpiece without waiting, which has a unique effect of saving time.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of the entire structure of a liquid transfer device according to an embodiment of the present invention, FIG. FIG. 4 is a partial cross-sectional view of a conventional cartridge tank, and FIG. 6 is a partial cross-sectional view of a conventional liquid transport device. FIG. 16 …… First liquid container, 18 …… Pump unit, 20
...... Adapter, 22 ...... Second liquid container, 30 …… Discharge pipe, 31 …… Discharge pipe tip, 33 …… Adapter valve body,
34 …… Spring, 35 …… Flange part, 36 …… Groove, 37 …… Upper convex part of ring, 42 …… Valve body.

Claims (6)

[Claims] 1. A first liquid storage container, a pump unit for transporting the liquid in the first liquid storage container, a base having a valve element provided in the second liquid storage container, and a detachable mount for the base. An adapter that can be freely attached and that communicates with the liquid in the first liquid storage container via a pipe line is provided, and the discharge pipe of the adapter pushes open the valve body by coupling the mouthpiece and the adapter. A liquid transfer device provided with an adapter valve body that opens the discharge port of the discharge pipe and closes the discharge port of the discharge pipe when the adapter is detached from the mouthpiece. 2. An adapter valve body is a cylindrical body which is in close contact with the discharge pipe and is slidable, and is always urged by a spring in the closing direction, and the discharge port opened on the side surface of the discharge pipe is opened and closed. The liquid transfer apparatus according to claim 1. 3. The adapter valve body is always biased by a spring in a closing direction and has a collar portion larger than the opening diameter of the mouthpiece, and when the discharge pipe of the adapter is inserted into the mouthpiece, the collar portion is the opening portion of the mouthpiece. 2. The liquid transfer apparatus according to claim 1, wherein the adapter valve body is pushed back by the spring when the discharge port of the adapter is opened to open the discharge port and the adapter is pulled out from the cap, and the discharge port is closed. 4. The liquid transfer device according to claim 1, wherein the adapter valve body is configured to open and close in the mouthpiece when the adapter is attached to and detached from the mouthpiece. 5. The adapter valve body is formed in a tubular shape, and one or a plurality of annular projections are formed on the inner surfaces near both ends of the tubular shape, respectively, and the end of the adapter valve body on the side far from the tip of the discharge pipe is formed. Claim 1 in which the collar portion is formed near the portion.
The liquid transfer apparatus according to item. 6. A contact portion between an adapter valve body and a mouthpiece, wherein a groove or hole for securing a gap for air flow when contacting is formed in either the adapter valve body or the mouthpiece. The liquid transfer apparatus according to item 1.