JPS62146196A - Lubricating device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a refueling device that is capable of preset refueling and is equipped with - or a plurality of weighing machines and a sales management machine, and particularly relates to a refueling device that is capable of preset refueling and that is equipped with one or more weighing machines and a sales management machine. This invention relates to a refueling device that prevents erroneous metering that occurs due to changes in refueling mode during operation, and enables accurate refueling regardless of the refueling IE type.

[Prior art]

In general, this type of refueling system has one end connected to a pump and a flow meter that measures the fuel supply 1-11- installed in the middle of the piping, and the other end of the pipe connected via a hose to measure the vehicle's fuel supply. A refueling nozzle that discharges oil into the tank, and a nozzle switch that detects the start and end of refueling by the refueling nozzle (in the case of a fixed weighing machine) or a lift switch or a lift detection cam switch (for a suspended type refueling device). case)'
It has a metering machine equipped with a S- refueling work detection means, and is connected to the meter ffi machine via a wire, and has a function of outputting a refueling start permission fi7 signal at the start of refueling work, and It has a function to calculate the measurement signal based on the measurement result of the meter as the amount of oil to be supplied, and a function to set a preset value at the time of presetting and refueling and output a fixed amount stop signal when the amount of oil to be supplied reaches the specified value. At the time of preset refueling, a quantitative stop signal from the Hanuri management machine will cause the pump and its attached pump motor, or if necessary, a light collection control machine installed in the middle of the piping. It is configured to stop the operation of liquid feeding means such as a solenoid valve.

1 During normal refueling, refueling is started and stopped by opening and closing the refueling nozzle, and during preset refueling, refueling is started by opening the refueling nozzle, and refueling is stopped by the pump that drives the pump. This is done by stopping the motor, or by stopping the operation of the liquid feeding means, such as by closing the electromagnetic button C provided in the middle of the piping, and the refueling nozzle is closed after the preset refueling is completed. Therefore, during preset lubrication, even if the liquid feeding means stops, the main valve of the lubrication nozzle remains open, so the flow of oil is stopped only by the automatic valve. Compared to the end of refueling (when the main valve is closed), the oil in the hose flows out into the fuel tank of the vehicle by the amount of expansion of the hose. The amount of this leakage varies depending on the length of the hose, each service station, and each time of refueling, but it is usually considered to be around 0.1 to 0.5. For example, if the previous time was preset refueling and this time is normal refueling. In some cases, there is a possibility that a minute error will occur each time the refueling mode differs.

[Problem that the invention seeks to solve]

This is shown in Figure 7. In the case of normal refueling both last time and this time as shown in Figure 7 (a), the value displayed on the 1-display meter is the amount from the opening to the closing of the refueling nozzle. and the actual amount of oil supplied. On the other hand, if the last time was preset lubrication and the current one is normal lubrication, as shown in Figure 7 (b), the oil required to drive the pump and thus fill the hose will be released from the opening of the lubrication nozzle. Since it is counted before operation, the actual amount of oil supplied from when the oil supply nozzle opens until it closes will be smaller by this amount. On the other hand, as shown in FIG. 7(c), if preset oiling is used both last time and this time, the oil filling the hose flows out again, so the preset value and the actual oiling amount match. Roughly speaking, as shown in Figure 7 (d), if the last time was normal lubrication and this time is preset lubrication, even if the liquid feeding means is activated, the amount of oil that has flowed out of the hose will be more than the preset value. will be refueled.

The present invention has been made in view of the problems of the prior art described above, and monitors whether the current lubrication mode is normal lubrication or preset lubrication, and when it is determined that it is preset lubrication.

The hose is filled with an oil equivalent to the oil that spilled out from the hose after the current refueling operation or before the next refueling operation, and the weighing signal corresponding to this filled amount is sent to the weighing machine. so that it is not output to the sales management machine,
It is therefore an object of the present invention to provide a refueling device that can perform accurate preset refueling based on preset control by a light collection management machine.

[Means for solving problems]

In order to solve the problems mentioned above, the features of the configuration adopted by the present invention include a nozzle switch, a refueling work end signal output from a refueling work detecting means such as a 7-inch hose lifter, and a light collection control device on the weighing machine side. a refueling mode determining means for monitoring a fixed amount stop signal output from the refueling system and determining whether or not the current refueling is preset refueling; and when the refueling mode determining means determines that the refueling is preset refueling, the refueling operation detecting means The correction drive/P stage that corrects and drives liquid feeding means such as pumps and solenoid valves based on the refueling work end signal or the refueling start permission signal from the light collection management machine, and the correction drive and L stage are in operation. The present invention includes a metering signal output stopping means for stopping the output of the total j1Y signal to the management machine.

〔Example〕

Hereinafter, the case where the oil supply system of the present invention is applied to a fixed type oil supply system will be described in detail based on the embodiment shown in the drawings.

1 to 4 show a first embodiment of the invention.

FIG. 1 shows an overall configuration diagram of the refueling system used in this embodiment. , a display section IB, and a mast section IC. 2 is a pipe arranged in the main body part IA, and a pump 4 driven by a pump motor 3 and a flow meter 5 are installed in the middle of the pipe 2. A flow transmitter 6 is fitted which emits proportional flow pulses. Also,
On the front of the display section IB is the refueling jIV that displays the total amount of refueling.
A display 7 is provided, and a control iJ1 circuit, which will be described later, is built into the display section IB. Zarani, mast IC
On the upper side of the hose, there is provided a hanger 8 which is connected to a hose traction mechanism (not shown) for pulling a hose 9, which will be described later.

9 is a hose connected to the base end side or to the pipe 2 in 1i71,
The middle portion of the hose 9 is suspended by a hanging string 8. Reference numeral 10 denotes a refueling nozzle provided at the tip end of the hose 9, and by opening the refueling nozzle 10, oil liquid can be discharged into the fuel tank. 11 is weighing machine 1
A nozzle storage part provided on the upper end side of the main body part IA, the refueling nozzle 10 is connected to and removed from the nozzle storage part 11; A nozzle switch 12 that opens and closes is provided.
During opening, a nozzle switch signal is output indicating that refueling work is in progress. 113
is a sales management machine, usually called rPO5J, which is installed in a gas station office or outside an office machine such as Ponks, and the sales management fi13 is a card reader 1 that reads cards.
4. Numeric keypad 15 for setting preset values when refueling or entering amounts when selling products. A product key 16 for specifying the product name when supplying oil other than gasoline, air supply, tire replacement, etc., a weighing machine selection key 17 for specifying this when there are multiple weighing machines 1, after refueling, or after the product is sold. printer L8 that issues a receipt;
and a display 19, etc., and the weighing machine 1 includes a refueling permission signal line 20A, a nozzle switch signal line 20B,
It is connected via a signal line 20 consisting of a measurement signal line 20C and the like. Here, the sales management a13 has a function of presetting the amount of refueling by operating the numeric keypad 15 during preset refueling, reading a card with the card reader '14, or selecting a weighing machine'! By operating +-17, a refueling start permission signal is output to the weighing machine l at the rising edge of the refueling permission signal from "L" to "H" state, and thereafter a quantitative stop (rj number or refueling end confirmation signal, which will be described later) is output. A function that outputs the refueling permission signal in the "H" state until the preset refueling, and a fixed amount stop signal is output when the refueling permission signal reaches the "L" shape 7M when the refueling amount reaches the preset value. Functions and 1. During normal refueling, the output of the refueling permission signal is stopped based on the refueling work completion signal obtained by the fall of the nozzle switch signal, and the function of outputting the refueling end confirmation signal when the nozzle switch signal falls. In addition to the function of calculating the measurement signal as the amount of oil supplied, it is provided with a sales aggregation function, a printer function, etc. The first function of the sales management fi 13 and the like are conventionally known.

Furthermore, FIG. 2 shows a circuit configuration diagram of this embodiment, and 2
1 is a pump motor drive circuit, 22 is a discrimination circuit, 23 is a correction drive circuit, 24 is an oil supply amount control circuit having a metering signal output stop circuit 24A, and 25 is a transmission circuit. Here, the pump motor drive circuit 21 has a function of driving the pump motor 3 while the nozzle switch signal outputted from the nozzle switch 12 is in the rHJ state under the condition that a refueling permission signal is input during normal refueling, and a preset function. For refueling, there is a function to drive the pump motor 3 between a refueling operation start signal obtained by the rising of the nozzle switch signal and a fixed quantity stop signal obtained by the falling of the refueling permission signal, and a correction drive circuit. It has a function of driving the pump motor 3 while the correction drive signal from the pump 23 is being outputted.

The determination circuit 22 monitors the refueling end signal obtained by the fall of the nozzle switch signal and the quantitative stop signal or refueling end confirmation signal obtained by the falling of the refueling permission signal, and if the quantitative stop signal comes first. If so, the current refueling is preset refueling, and if not, the refueling mode is determined as normal refueling.

When the discrimination circuit 22 determines that preset lubrication is being performed, the correction drive circuit 23 waits for the input of the lubrication end signal and drives the pump motor for a predetermined period of time based on the discrimination signal from the discrimination circuit 22. It is output to the circuit 21 and the oil supply amount control circuit 24. Here, during the predetermined time period during which the corrected drive signal is output, the hose 9 is filled with the oil liquid (usually 0.1 to 0.5 cm) flowing out from the hose 9 to the preset oil supply amount! 11, the time required to drive the pump motor 3, for example, about 0.5 to 2 seconds is set.

, the oil supply amount control circuit 24 counts the flow rate pulses from the flow rate transmitter 6 and sends the count signal to the display drive circuit (
(not shown), a function to reset the previous displayed value of the refueling amount display 7 to zero based on the refueling work start signal caused by the rise of the nozzle switch signal, and a signal to divide the flow rate pulse as necessary. It has a function of generating a measurement signal (usually called a rhos pulse) to be converted and output to the vending machine 13. On the other hand, the refueling control circuit 24 includes a metering signal output stop circuit 24A, and the output stop circuit 24A outputs a metering signal based on the flow rate pulse while the correction drive signal is manually inputted from the correction drive circuit 23. It has a function of stopping the output of the weighing signal to the sales management machine 13 even if it occurs.

Furthermore, the transmission circuit 25 inputs the refueling permission signal from the sales management@13 to the measuring machine 1 side, outputs the nozzle switch signal from the nozzle switch 12 to the sales management machine 13 side, and further outputs the refueling permission signal from the refueling amount control circuit 24. Weighing signal sales control machine 13
It has the function of an interface to output to the side.

The present embodiment is constructed as described above, and its operation will be described with reference to FIGS. 3 and 4.

First, the normal refueling operation will be described with reference to FIG.

In this case, insert the card of the customer to refuel (in the case of a general customer, the gas station card) into the card reader 14 of the vending machine 13, and if there are multiple GI machines 1, press the meter a selection button. Press 17. As a result, sales management machine 1
3 outputs a refueling permission signal to put the pump motor drive circuit 21 in a startable state.

Next, when the refueling nozzle 10 is removed from the nozzle housing 11 in order to refuel the fuel tank of the vehicle, the nozzle switch 12 closes and outputs a nozzle switch signal. As a result, the nozzle switch signal is input to the pump motor drive circuit 21,
At this rising edge, a motor drive signal is output from the drive circuit 21 to the pump motor 3 to start it.

Then, when one worker opens the oil supply nozzle 10, the oil in the underground tank flows through the pipe 2, pump 4, flow meter 5, and hose 9.
The oil is discharged from the oil supply nozzle 10 through the oil supply nozzle 10. The flow rate at this time is measured by the flowmeter 5, and a flow rate pulse is transmitted from the flow rate transmitter 6 and inputted to the oil supply amount control circuit 24. As a result, the oil supply amount control circuit 24 counts the flow rate pulses, outputs a count signal to the oil supply amount display 7 to display the amount of oil supply, and also converts the flow rate pulses into signals (as 4 signals) to measure the amount of oil supplied. The signal is output to the sales management machine 13, and the sales management machine 13 calculates the measurement signal as the amount of oil to be supplied.

In this state, when the refueling progresses and reaches the desired amount,
The refueling nozzle 10 is closed, and the refueling nozzle IO is hung in the nozzle storage part 11. Therefore, the nozzle switch 12 is opened and the output of the nozzle switch signal is stopped, and this falling state is used as the end signal for the pump motor drive circuit 2.
1. Input to sales management machine 13. Thus, the output of the refueling signal from the buried plate 13 to the pop motor drive circuit 21 stops, and the output of the motor drive signal from the drive circuit 21 to the pump motor 3 also stops. Then, the series of refueling operations is completed. Note that the one or more normal oil supply operations are the same as in the prior art, and the hose 9 is filled with oil.

Next, the preset oil supply operation will be described with reference to FIG.

In this case, before inserting the cart into the cart reader 14 of the light collection management machine 13 or after inserting the card, the customer operates the numeric keypad 15 to preset the predetermined amount or price of refueling desired by the customer, This preset value is stored.

Next, as in the case of normal refueling, the refueling nozzle 10 is removed from the nozzle housing 11, inserted into the fuel tank, and opened. At this time, the /<- of the refueling nozzle 10 is hooked to the hook, and the valve is opened! Keep L.

When the refueling progresses and the refueling amount reaches the predetermined value, the output of the refueling permission signal from the machine board is stopped.
h. This refueling amount is 7 + (signal downward condition J punishment J,
1 stop signal, and when the Jl amount stop signal is input to the pump motor drive circuit 21, the output of the motor drive signal from the drive circuit 21 is stopped. Therefore,
By stopping the pump motor 3, no oil is discharged from the oil supply nozzle 10, and preset oil supply is performed at a predetermined preset value. In addition, at this time, 3
Since the valve 10 remains open, the hose 9
The oil inside will flow out and the total amount will be ΔI11, but this excess will flow out from the light collection management device 13 and the total amount will be A11l.
Needless to say, the output of the refueling permission signal is stopped in advance in anticipation of the amount of refueling.

Furthermore, when the operator visually confirms that the display on the refueling amount indicator 7 has stopped, the operator closes the refueling nozzle 10 and hangs it on the nozzle storage part 11, thereby completing a series of preset refueling operations. become.

However, in this embodiment, the determination circuit 22 for determining the refueling mode
is provided, and the quantitative stop signal or refueling end confirmation signal caused by the fall of the refueling permission signal is compared with the refueling work end signal caused by the falling nozzle switch signal.The quantitative stop signal is the refueling end signal. When it is determined that the oil supply is outputted earlier than the preset oil supply, a determination signal is output to the correction drive circuit 23 as a preset oil supply.

Thus, if the current refueling mode is preset refueling,
A discrimination signal is input to the correction drive circuit 23,
The correction drive circuit 23 waits for the input of the refueling end signal, and then sends the correction drive signal to the pump motor drive circuit 2 for a predetermined period of time.
Output to 1. As a result, a motor drive signal is output from the drive circuit 21 to the pump motor 3, and the motor 3 is driven to fill the hose 9 with oil and keep it in an expanded state.

On the other hand, the correction drive signal from the correction drive circuit 23 is input to the oil supply amount control circuit 24, and the metering signal output stop circuit 24A provided therein performs light collection management while the correction drive signal is being input. The output of the weighing signal to the machine 13 is stopped.

As a result, the amount of oil corresponding to the amount filled into the hose 9 is totaled 3111 by the flow meter 5, and the flow pulse from the flow transmitter 6 is input to the oil supply amount control circuit 24 or measured to the light collection management fiL3. No signal is output. In addition, I
If the configuration is such that the output of the count signal to the refueling amount display 7 is stopped while the output of the measurement signal to the I-sales management machine 13 is stopped, the numerical value of the receipt by the printer 18 and the refueling amount display 7 can be changed.
matches the displayed value.

As described above, according to this embodiment, if the current refueling operation is preset refueling, the hose 9 can be filled with oil before the next refueling operation, so that it is possible to fill the hose 9 with oil regardless of the refueling mode. Regardless of the situation, accurate refueling operation can be performed at all times. In addition, while the hose 9 is being filled with oil in preparation for the next refueling operation, the measurement signal is sent to the light collection management device 13.
There is no possibility that the receipt issued by the printer 18 will be different from the preset value (1).
, it is possible to eliminate customer distrust.

Next, FIGS. 5 and 6 show a second embodiment of the present invention,
The feature of this embodiment is that the pump motor is driven for correction prior to the start of the first refueling operation.

That is, the same components as those in the first embodiment are denoted by the same reference numerals.In the correction drive circuit 23' used in this embodiment, the discrimination circuit 22 discriminates that the current lubrication mode is preset lubrication. When the determination signal is inputted, the corrected drive signal is output based on the refueling start permission signal obtained by the rising edge of the refueling permission signal during the next refueling operation.

The present embodiment is configured as described above, but if the previous refueling was preset refueling, a determination signal is input to the correction drive circuit 23'. Then, when the card is first inserted into the card reader 14 of the vending machine 13 during the next refueling operation, a refueling permission signal is output. The rising edge of this refueling permission signal is used as a refueling start permission signal, and this signal is input to the correction drive circuit 23', so that the drive circuit 23' converts the supplementary 11E oscillation (IX!) to the pump motor drive circuit 21. , the oil supply t11 is outputted to the control circuit 24.As a result, as shown in FIG. stops outputting the weighing signal to the vending machine 13 only during this period.

Thus, this embodiment differs from the first embodiment only in the output timing of the corrected drive signal, but the effect remains the same. In this embodiment as well, it is desirable that the output of the count signal to the oil supply amount display 7 is stopped only while the correction drive number 4g is input to the oil supply amount control circuit 24.

In each of the embodiments of the present invention, the pump motor 3 and the pump 4 have been described as a liquid feeding means for starting and stopping liquid feeding.

It may also be constituted by a solenoid valve provided therein. In addition, although a fixed weighing machine was taken as an example in "Weighing Machine 1", it may also be a suspended weighing machine in which the refueling nozzle is suspended from a high place in a gas station via a hose so that it can be raised and lowered.In this case, In this case, the refueling operation detection means may be a nozzle lift switch, a lift detection cam switch, etc. in place of the nozzle switch 12, and detect between the refueling position and the standby position. Alternatively, the system is not limited to the one shown in FIG. 5, and may be constructed using a microcomputer or the like.

[Effect of issuance]

The oiling device according to the present invention is as described in detail above, and when preset oiling is performed, the hose is filled with oil in advance after the oiling is finished or at the time of the next oiling operation. Since the measuring signal corresponding to the amount is not output to the sales management machine, the hose will always be filled with oil when the next refueling operation is performed, which prevents errors caused by different refueling methods. It is possible to prevent this problem and eliminate discrepancies between the actual amount of oil supplied and the method of receipt from the printer, thereby increasing the relationship of trust with customers.

[Brief explanation of drawings]

1 to 4 relate to a first embodiment of the present invention, in which FIG. 1 is an overall configuration diagram of a refueling device, FIG. 2 is a circuit configuration diagram, and FIG. 3 is an explanatory diagram of operation during normal refueling. Fig. 4 is an explanatory diagram of the operation of the preset oil supply, Figs. 5 and 6 relate to the second embodiment of the present invention, Fig. 5 is a circuit configuration diagram of this embodiment, and Fig. 6 is a preset oil supplying operation diagram. FIG. 7 is an explanatory diagram of the operation during refueling, and is an explanatory diagram showing problems that occur in each refueling mode in the refueling device according to the prior art. DESCRIPTION OF SYMBOLS 1...Measuring device, 2...Piping, 3...Pump motor, 4...Pump, 5...Flow meter, 6...Flow rate transmitter, 9...Hose, lO・・・Refueling nozzle, 12・
...Nozzle switch, 13...Sales control machine, 20...
・Signal line, 21... Pump motor drive circuit, 22...
・Discrimination circuit, 23゜23'...correction drive circuit, 24・
...Lubrication amount control circuit. 24A...Measuring signal output stop circuit.

Claims (1)

[Claims] A liquid feeding means for starting and stopping liquid feeding, a measuring means for measuring the amount of oil fed by the liquid feeding means, an oiling means for discharging the oil measured by the measuring means, and the oiling means. The measuring machine is connected to the weighing machine via a signal line and has a function of outputting a refueling start permission signal at the start of the refueling work. , a function of calculating a measurement signal based on the measurement result of the measuring means as the amount of oil to be supplied, and a function of setting a desired preset value at the time of preset lubrication and outputting a quantitative stop signal when the amount of oil to be supplied reaches the preset value. In the refueling device, the liquid supply device is provided with a vending control machine, and the liquid feeding means is stopped by a quantitative stop signal from the vending control machine during preset refueling, and the measuring machine side receives the refueling output from the refueling operation detection means. A refueling mode determining means that monitors the work end signal and the quantitative stop signal output from the sales management machine and determines whether or not the current refueling is preset refueling, and the refueling mode determining means determines that the refueling is preset refueling. At times, a correction drive means for correcting and driving the liquid feeding means based on a refueling work end signal from the refueling work detecting means or a refueling start permission signal from the sales management machine; 1. A refueling device comprising: a measurement signal output stop means for stopping the output of a measurement signal.