JP2000247396A - Liquid supply device - Google Patents

Abstract

(57) [Summary] The present invention aims to improve the working efficiency of refueling of an oil liquid whose demand varies depending on the time and to oversupply the equipment at a gas station at a time when the demand is low. A liquid supply device (9) is connected via a hose (6) of a weighing machine (1) having a preset refueling function.
Is connected to the internal pipe 12 through which the oil liquid is sent from
Is provided with a plurality of discharge ports 10, each of which has an on-off valve 11 and a liquid level detection sensor for preventing overflow.
17 are provided. A mounting table 16 on which a plastic tank or the like is mounted is provided below each discharge port 10. As described above, since the liquid supply apparatus of the present invention is used in combination with a pre-designed quantity machine, it does not require excessive capital investment even during periods of low demand, and has a plurality of discharge ports to minimize the number of installations. be able to. Further, the refueling operation is automated, and the operation efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid supply device used in a gas station, for example, to supply kerosene to a plastic tank or the like.

[0002]

2. Description of the Related Art In a gas station, for gasoline supply,
A weighing machine is installed for each type of oil supply, such as for kerosene supply.

[0003] Generally, this type of weighing machine is installed at a predetermined position, pumps up oil from an underground oil storage tank by a pump driven by a motor, and supplies the oil to a vehicle, a poly tank, or the like via an oil supply nozzle.

[0004] However, if weighing machines such as kerosene, whose sales volume varies greatly depending on the season, are installed in the number corresponding to the period of high sales volume, when the sales volume is low, refueling is performed by the amount corresponding to the installation of the weighing machine. The site of the site was wasted and became excessive equipment, and if the number of units was set up in a short period of time, equipment could not be provided for demand and efficient refueling could not be performed.

[0005] For this purpose, a portable portable weighing machine equipped with an oil tank is used to store the weighing machine in a warehouse when the sales volume is low, and the kerosene supply weighing machine is used when the sales volume is high. It was placed nearby to respond to changes in sales volume.

In the refueling work, if the number of units is reduced in accordance with the period when the sales volume is small, one nozzle is used to refuel a plurality of plastic tanks, and it is necessary to sequentially move from one plastic tank to another plastic tank. And efficient refueling cannot be performed.

[0007]

However, it is necessary to transfer the oil liquid to the oil tank when the portable weighing machine is used or when the oil liquid in the oil storage tank becomes empty. In addition, since the portable weighing machine is provided with a pump for sucking up the oil liquid from the oil storage tank, a motor for driving the pump, and the like, the cost is expensive.

If the number of weighing machines is reduced in accordance with the period when the sales volume is small, one nozzle is used to refuel a plurality of poly tanks, so that one poly tank must be sequentially transferred to another poly tank. And efficient refueling could not be performed.

Therefore, an object of the present invention is to solve the above-mentioned problems.

[0010]

According to a first aspect of the present invention, there is provided a connection pipe having a connection port to which a discharge port derived from a weighing machine body is detachably connected, A plurality of discharge pipes branched from the pipes and inserted into the liquid supply containers, valves provided on each of the plurality of discharge pipes for opening and closing each discharge pipe, and operating means for opening and closing each valve; It is characterized by.

The invention according to a second aspect of the present invention provides a connection pipe having a connection port to which a discharge port derived from a weighing machine having a preset liquid supply function is detachably connected, and a connection pipe branched from the connection pipe. A plurality of discharge pipes respectively inserted into the liquid supply container, a valve provided in each of the plurality of discharge pipes for opening and closing each discharge pipe, a detecting means for detecting whether liquid is flowing in each discharge pipe, Control means for closing each of the valves based on a signal from the detection means.

According to a third aspect of the present invention, there is provided a connection pipe having a connection port to which a discharge port derived from a weighing machine having a preset liquid supply function is detachably connected, and a connection pipe branched from the connection pipe. A plurality of discharge pipes respectively inserted into the liquid supply container, a valve provided in each of the plurality of discharge pipes for opening and closing each discharge pipe, and each of the valves opening and closing based on a liquid supply start or stop signal from a measuring machine. And control means for causing

According to a fourth aspect of the present invention, in the liquid supply apparatus according to any one of the first to third aspects, a detecting means is provided corresponding to the plurality of discharge pipes and detects the presence or absence of a liquid supply container. And a control means for permitting the valve of the discharge pipe in which the liquid supply container is detected to be present by the detection means to open the valve.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention;

First, a weighing machine already installed at a gas station will be described with reference to FIG.

A pump 3 operated by a motor 2 in the main body and a flow meter 4 for measuring the amount of oil discharged by the pump 3 are provided inside the metering machine 1.

On the side surface of the weighing machine 1, the refueling nozzle 7 (see the right side of the weighing machine 1 in FIG. 1) provided at the end of a hose 6 led out of the weighing machine 1 is detected to refuel. A nozzle switch 5 for outputting a start and end signal of the operation is provided.

The weighing machine 1 is provided with a control device 8 for controlling refueling based on the detection signals of the motor 2 and the nozzle switch 5 and is set as described in Japanese Utility Model Publication No. 3-44720. A plurality of preset values are stored and accumulated in the setting order, and when it is determined that the refueling operation is started by operating the nozzle switch 5, the preset values stored sequentially are updated and automatically set so that the refueling operation can be sequentially performed. It has a continuous preset lubrication function.

Next, referring to FIG. 1 and FIG.
An embodiment corresponding to FIG.

The liquid supply device 9 is provided separately from the weighing machine 1 and has wheels 10 for moving in a gas station.
Is provided. Further, the liquid supply device 9 is provided with a hose connection port 11 to which the hose 6 of the above-described measuring device 1 is connected, and is connected to an internal pipe 12 through which the oil liquid is sent from the hose 6.

A plurality of discharge pipes 13A, 13A
B, 13C are provided in a branched manner, and discharge pipes 13A, 13B, 13
C is configured so that each discharge port slides up and down so that it can be inserted into the oil supply ports of the plastic tanks A, B, and C. At the tip thereof, the oil liquid is supplied during the oil supply to the poly tanks A, B, and C. Liquid level detection sensor to stop refueling when it reaches
17A, 17B and 17C are provided. Discharge piping 13A, 13
On / off valves 14A, 14B and 14C are provided in the middle of B and 13C, respectively. The on / off valves 14A, 14B and 14C are switches 15 which are operating means for an operator to instruct opening and closing.
A, 15B and 15C are provided.

At the lower part of the discharge pipes 13A, 13B, 13C, there is provided a mounting table 16 for mounting the polytanks A, B, C, which are oiled containers.

Here, an example of a refueling operation by the liquid supply device 9 will be described with reference to a flowchart of FIG.

Step 1 (hereinafter, step is abbreviated as S)
Then, the worker puts the plastic tanks A, B, C into the discharge pipes 13A, 13
It is set on the mounting table 16 in accordance with B and 13C, and in S2, the distal ends of the discharge pipes 13A, 13B and 13C are slid downward so as to match the polytanks A, B and C.

In S3, the operator operates the weighing machine 1 to preset the amount of oil to be supplied to the poly tanks A, B and C, respectively. After the preset setting is completed, the operator turns ON / OFF the nozzle switch 5 in S4,
In S5, the pump 3 is driven.

Then, in step S6, the switch 15A is operated to open the on-off valve 14A, and refueling of the poly tank A is started.

When the oil supply to the plastic tank A reaches the preset value set in the above S3 in S7, or when the liquid level detecting sensor 17A detects the oil liquid, the oil supply to the plastic tank A is finished, and in S8 the plastic tank A is finished. After confirming the refueling of A, the operator closes the on-off valve 14A.

Then, it is checked whether or not all the preset refueling has been completed in S9, and if not completed, the operator turns on / off the nozzle switch 5 in S4.
Operate the switch 15 for the remaining plastic tanks B and C.
By operating the valves B and 15C, the on-off valves 14B and 14C are opened and closed, and the refueling operation is repeated by operating the nozzle switch 5 ON / OFF. If refueling has been completed for all of the preset poly tanks in S3, refueling is completed in S10.

In the present embodiment, the liquid supply device 9
Is provided, it is possible to supply oil to a plurality of poly tanks using the hose 6 of the existing measuring machine 1, and it is not necessary to transfer the oil liquid to the oil tank unlike a conventional portable measuring machine. Further, since the pump 3 and the flow meter 4 are not required for the liquid supply device 9, the liquid supply device 9 itself can be provided at low cost.

Further, unlike the case where a plurality of plastic tanks are refueled using the normal refueling nozzle 7, there is no need to move the refueling nozzle 7 from one plastic tank to another plastic tank, so that a plurality of plastic tanks can be efficiently provided. Refueling work can be performed.

In the above embodiment, the connection port
Although the hose 6 is connected to 11, it is not limited to this.
The fuel supply nozzle 7 may be connected to the connection port 11.

In the above-described embodiment, the description has been made such that the refueling of the plastic tank is performed one by one. However, the present invention is not limited to this, and the refueling may be performed simultaneously on a plurality of plastic tanks. The refueling operation can be performed more efficiently.

Furthermore, the weighing machine 1 is a weighing machine having a continuous preset refueling function. However, the present invention is not limited to this. A weighing machine capable of performing one preset refueling function by setting the refueling amount or refueling amount for each poly tank is set. May be used.

Next, a first modification corresponding to the third and fourth aspects will be described with reference to FIGS.

Since the weighing machine 1 has the same configuration as that described in the above embodiment, the description is omitted here.

The liquid supply device 29 is provided with moving means 30 such as wheels for moving inside the gas station. The liquid supply device 29 is provided with a hose connection port 31 to which the hose 6 of the weighing machine 1 is connected, and is connected to an internal pipe 32 through which the oil liquid is sent from the hose 6.

In the internal pipe 32, a plurality of discharge pipes 33A, 33
B, 33C are provided in a branched manner, and discharge pipes 33A, 33B, 33
C is configured such that each discharge port is slid so that it can be inserted into the filling ports of the plastic tanks A, B, and C, and at the tip thereof, the oil liquid reaches the filling ports while the tanks A, B, and C are refilled. Then, a liquid level detection sensor 37A for stopping refueling,
37B and 37C are provided.

At the lower part of the discharge pipes 33A, 33B and 33C, there is provided a mounting table 36 on which the plastic tanks A, B and C to be refueled are placed. On the mounting table 36, a container such as a poly tank which is an oil supply container is mounted. Placement sensor 38 that detects whether it is placed
A, 38B, and 38C are provided in correspondence with the discharge pipes 33A, 33B, and 33C, respectively.

The liquid supply device 29 is provided with a control device 39 which is connected to the control circuit 8 of the weighing machine 1 and receives a signal from the control circuit 8 indicating completion of preset setting.
The control device 39 receives signals indicating the presence / absence of the plastic tanks A, B, and C from the mounting sensors 38A, 38B, and 38C, and receives the signals from the on-off valves 34A, 34A.
B and 34C are controlled to open and close.

Here, the refueling operation by the liquid supply device 29 will be described with reference to the flowchart of FIG. In the first modification, the description will be made assuming that the plastic tanks are placed in the order of A, B, and C.

In step S11, the worker places the plastic tanks A, B, and C on the mounting table 36 in accordance with the discharge pipes 33A, 33B, and 33C. At this time, in S12, each of the placement sensors 38A, 38B, and 38C detects the presence or absence of each of the polytanks A, B, and C, and sends a signal indicating that there is a polytank to the control device 39 of the liquid supply device 29 when the polytank is placed. send. Then, each of the placement sensors 38A, 38
The control device 39 that has received this signal from B and 38C stores the order in which it was received.

In step S13, the operator operates the discharge pipes 33A, 33B, 33.
Slide so that the tip of C is inserted into each filler port of the plastic tanks A, B and C.

Then, in S14, the operator operates the weighing machine 1, and in S13, the amount of oil to be supplied to the plastic tanks A, B and C is preset.

After the completion of the preset setting, when the operator turns on the nozzle switch 5 in S15, the pump 3 is driven in S16. At this time, a signal for driving the pump 3 is sent from the control device 8 to the control device 39, and based on this signal, the control device 39 opens the on-off valve 34 in the order in which the stored polytanks are placed. In this modification, first, the on-off valve 34A is opened. Thereby, refueling to the plastic tank A is started.

When the oil supply to the plastic tank A reaches the preset value set in the above S13 in S17, or the oil level is detected by the liquid level sensors 37A, 37B and 37C, the oil supply to the plastic tank A is completed. , The pump 3 stops. At this time, a signal for stopping the pump is sent from the control device 8 to the control device 39, and in response to this signal, the control device 39 causes the control valve 39 to open and close the on-off valve 34A in S18.
Is closed. Thereby, the refueling to the plastic tank A is completed.

In step S19, it is checked whether or not refueling of all the poly tanks has been completed. If there is a fueling destination that has not been completed, the flow returns to step S15 to repeat the refueling operation of the poly tanks B and C. When the refueling has been completed for all refueling destinations, refueling is completed in S20.

As described above, only by setting the polytanks A, B, and C on the mounting table and setting the preset value of each polytank, the desired oil liquid can be automatically supplied to each polytank, and the efficiency of the refueling operation can be improved.

As described above, the plastic tanks A, B, and C are placed on the mounting table, and the preset value of each tank is simply set.
The desired oil liquid can be automatically supplied to each plastic tank, and the efficiency of the refueling operation can be improved.

Next, a second modification corresponding to the second aspect will be described with reference to FIGS.

Since the weighing machine 1 has the same configuration as that described in the above embodiment, the description is omitted here.

The liquid supply device 49 is connected to the weighing machine 1 as in the first modification.

A plurality of discharge pipes 53A, 53B and 53C are provided in the internal pipe 52 of the liquid supply device 49 in a branched manner.
53A, 53B, 53C have on-off valves 54A, 54B, 54C respectively
And flow sensors 55A, 55B, and 55C for detecting whether or not the oil liquid flows in the discharge pipes 53A, 53B, and 53C.

The on-off valves 54A, 54B, 54C and the flow sensors 55A, 55B, 55C are connected to a control device 59 provided in the liquid supply device 49.
Upon detecting whether or not the oil liquid is flowing from 55B and 55C, the valve closing control of the on-off valves 54A, 54B and 54C is performed.

Next, a refueling operation by the liquid supply device 49 having the above-described configuration will be described with reference to a flowchart of FIG.

After the pump is driven, the operator operates a switch (not shown) as an operating means in S31, and opens and closes the open / close valve 54 in S32.
A is opened. In step S33, the flow sensor 55A detects the presence or absence of the flow of the oil liquid to the discharge pipe 53A. If the flow is present, then in step S37, it is detected that the refueling ends and the flow stops. Then, in S38, the on-off valve 54A is closed, and if refueling has been completed for all refueling destinations, the operation is completed, and
If there is another refueling destination, the process returns to S31 and the next poly tank B
Refuel and re-work. Note that the same process is repeated when there is a poly tank C.

If there is no flow in S33, the state in which there is no flow is measured in S34, and after a set period of time has elapsed, the on-off valve 54A is closed in S36, and the abnormal end is notified. To end.

As a result, the on-off valves 54A, 54B, 54C are not left open, and oil dripping is prevented, and safety is improved.

[0058]

As described above, according to the liquid supply device of the first aspect, since the liquid supply device is detachable from the discharge port derived from the main body of the weighing machine, the liquid supply device is required depending on the time like kerosene. The number of oil liquid measuring machines whose number increases or decreases can be set according to the demand.

Further, since the liquid supply device itself does not require a pump or a flow meter, the price can be reduced.
Equipment investment at the gas station can be reduced.

Further, it is not necessary to transfer the oil liquid to the oil tank as in a portable weighing machine having an oil tank, and the provision of a plurality of discharge pipes makes it possible to supply oil to a plurality of oiled containers. Work efficiency can be improved by eliminating the need to insert and remove one nozzle for each container.

By performing the valve control according to the second aspect, it is possible to avoid forgetting to close the on-off valve, and to improve the safety of the liquid supply device.

Further, according to the lubricating apparatus according to the third and fourth aspects, since the operation of refueling a plurality of lubricated containers can be automated, the labor of the operator can be reduced and the working efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of a liquid supply device according to the present invention.

FIG. 2 is a configuration diagram showing a side view of a liquid supply device according to the present invention.

FIG. 3 is a flowchart for explaining the operation of one embodiment of the liquid supply device according to the present invention.

FIG. 4 is a configuration diagram showing a first modification of the liquid supply device according to the present invention.

FIG. 5 is a schematic view showing a first modification of the liquid supply device according to the present invention.

FIG. 6 is a flowchart for explaining an operation according to a first modification of the liquid supply device according to the present invention.

FIG. 7 is a schematic diagram showing a second modification of the liquid supply device according to the present invention.

FIG. 8 is a flowchart for explaining the operation of a liquid supply device according to a second modification of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Measuring machine 3 Pump 4 Flowmeter 5 Nozzle switch 8 Control device 9 Liquid supply device 13 Discharge port 14 On-off valve 16 Mounting table

Claims (4)

[Claims] 1. A connection pipe having a connection port to which a discharge port derived from a main body of a weighing machine is detachably connected, and a plurality of discharge pipes branched from the connection pipe and inserted into liquid supply containers, respectively. And a valve provided in each of the plurality of discharge pipes for opening and closing each discharge pipe, and operating means for opening and closing each valve. 2. A connection pipe having a connection port to which a discharge port derived from a weighing machine having a preset liquid supply function is detachably connected, and a connection pipe branched from the connection pipe and inserted into a liquid supply container. A plurality of discharge pipes, a valve provided in each of the plurality of discharge pipes, for opening and closing each discharge pipe, a detecting means for detecting whether a liquid is flowing through each discharge pipe, and Control means for closing the valve. 3. A connection pipe having a connection port to which a discharge port derived from a weighing machine having a preset liquid supply function is detachably connected, and a connection pipe branched from the connection pipe and inserted into a liquid supply container. A plurality of discharge pipes, a valve provided in each of the plurality of discharge pipes for opening and closing each discharge pipe, and a control means for opening and closing each valve based on a signal of liquid supply start or stop from a measuring machine. Characteristic liquid supply device. 4. A liquid supply device according to claim 1, wherein said detection means is provided corresponding to said plurality of discharge pipes and detects the presence or absence of a liquid supply container. Control means for permitting a valve of a discharge pipe detected as having a liquid container to open the valve.