JPH0764385B2 - Refueling device - Google Patents

Description

Description: [Industrial field of application] The present invention relates to a preset lubrication device installed in a gas station or the like.

[Conventional technology]

2. Description of the Related Art A refueling device includes a preset refueling device in which a refueling amount is set in advance in a unit of or in a circle before starting refueling, and refueling is automatically stopped when a refueling amount of a set amount or a monetary amount is reached.

An example of the oil supply nozzle used in such a preset oil supply device is shown in Japanese Patent Laid-Open No. 61-273396, which is a liquid supply hose 3 as shown in FIGS. 7 (a) and 7 (b). When there is a pressure, the diaphragm 33 and the integral cap 34 are pressed and moved by the hydraulic pressure transmitted to the inside of the chamber 32 through the passage 31, and the cap 34 and the pin 36 attached to the diaphragm 35 are disengaged, and the diaphragm is released. 35 and the integrated roller guide 37 move by being pushed by the spring 38, and the roller 39 of the roller guide 37 fits into the recessed portion of the valve rod 40 and the lock pin 41 to integrate them.

As a result, when the lever 42 is pulled, the valve rod 40 can be pulled via the lock pin 41 and the roller 39, and the nozzle valve 43 can be opened.

Further, when the lever 42 is hooked on the latch 47 and the hydraulic pressure in the fuel supply hose 3 disappears during refueling, the diaphragm 33 and the cap 34 are returned by the spring 44, and the engagement between the cap 34 and the pin 36 causes the pin 36, The diaphragm 35 and the roller guide 37 are pulled, the roller 39 is disengaged from the recess of the lock pin 41, and the engagement between the valve rod 40 and the lock pin 41 is released.

As a result, the nozzle valve 43 cannot be opened even if the lever 42 is pulled, and in the opened state, the valve is closed even if the lever 42 is hooked on the latch 47.

The nozzle valve 43 is opened to open the nozzle 45 at the tip of the nozzle during refueling.
When the fluid is blocked by the liquid, the diaphragm 35 moves due to the negative pressure of the negative pressure generating portion 46, and the valve rod 40 and the lock pin by the roller 39 are moved.
The engagement with 41 is released and the nozzle valve 43 is adapted to close.

By the way, refueling kerosene to containers such as plastic tanks and drums, and refueling fuel to land transport vehicles are carried out continuously in a large number of containers and a large number of automobiles at a time, and the amount of refueling is 18 or In the latter case, the number is often about 3, which is about 3.

In the case of such refueling, in the conventional preset refueling device, the refueling amount is preset for each container or each vehicle for each refueling.

[Problems to be Solved by the Invention]

When preset refueling is used for continuous refueling of a large number of kerosene containers and a large number of land transportation vehicles, conventionally, exactly the same preset value as described above is set each time refueling is performed. Was not good.

In addition, since the number of times the preset value is set increases, the possibility of setting an incorrect numerical value increases accordingly.

The object of the present invention is to eliminate the inconvenience of the conventional example, when continuously presetting a fixed amount to a kerosene container or the like, it is possible to save the trouble of setting a preset value every time refueling, and improve the workability of refueling, Moreover, it is to provide a safe refueling device.

[Means for Solving the Problems]

In order to achieve the above object, the present invention connects an oil supply pump, a flow meter, and a main valve provided in a case of an oil supply machine with an oil supply pipe, connects an oil supply hose to the oil supply pipe, and connects a hydraulic pressure to a tip of the oil supply hose. A valve can be opened by pulling the lever when rising, and a refueling nozzle with a nozzle valve that automatically closes even when the lever is pulled when the hydraulic pressure drops, and a pulse provided on the refueling motor for driving the refueling pump and the flow meter. A control device is provided which is connected to a transmitter and a nozzle switch provided on the nozzle hook, and a keyboard having a continuous refueling setting switch and a preset amount setting switch, wherein the control device is a continuous refueling setting signal and a preset amount setting signal from the keyboard. And a signal for removing the nozzle from the nozzle switch to drive the refueling motor and open the main valve to start liquid delivery, and to close the main valve after refueling the set amount. The gist of the invention is to provide a means for stopping the liquid feeding and a means for opening the main valve and restarting the liquid feeding after a lapse of a certain time after the liquid feeding is stopped.

[Action]

According to the present invention, for example, in the case of continuously supplying a fixed amount to a large number of kerosene containers or the like, if the continuous refueling and the preset refueling amount are preset once from the keyboard at the start of refueling, it is possible to refuel up to the set amount. The valve closes, the nozzle valve closes due to the decrease in hydraulic pressure, and then the original valve automatically opens again after a certain time, so if you pull back the lever and open the nozzle valve again, refueling will resume and the same amount will be applied to all containers. The refueling amount is continuously and automatically refueled.

〔Example〕

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the oil supply apparatus of the present invention, and FIG.
The figure is a front view of the input device, which is a main part of the same as above, and FIG. 3 is an overall block diagram. Explaining from the overall structure of the refueling device, the figure shows a ground-fixing type refueling device. An oil supply pipe 16 communicating with an underground oil storage tank (not shown) is set up in an oil supply case 2 installed upright, and an oil supply pump 19 connected to an oil supply motor 20 as an oil supply mechanism in the middle of the oil supply pipe and a flow rate pulse. A flow meter 17 to which a transmitter 18 is connected is disposed, an oil supply hose 3 connected to the oil supply pipe 16 is hung on the side of the oil supply case 2, and an oil supply nozzle 4 is attached to the tip of the oil supply hose 3. In this refueling nozzle 4, there is
As described in Japanese Patent Laid-Open No. 61-273396, as described above, this is a fueling nozzle in which the nozzle valve automatically closes even when the lever is pulled when the hydraulic pressure decreases.

In the figure, reference numeral 5 denotes a nozzle hook formed on the side surface of the fuel filler case 2, and a nozzle switch 6 which is turned on / off in association with the hook / unhook of the fuel filler nozzle 4 is provided here. Also, 7 in the figure
Indicates an indicator for displaying refueling data such as refueling amount and refueling amount.

In the present invention, the input device 8 for presetting is provided in the refueling device having such a configuration, for example, on the side surface of the refueling device case 2 where it is easy to operate. As shown in FIG. 2, this input device comprises a keyboard 9 and a display 10 for displaying preset values. The keyboard 9 has a ten-key pad 11 for inputting a preset amount, a continuous switch 12 as a continuous quantitative presetting means, Confirmation switch 13 for confirming numerical values such as the preset amount, "\" for entering the unit of the preset amount
Unit input keys 14a, 14b with characters such as "" are provided, and when a predetermined amount is preset in the continuous switch 13, it is for setting continuous lubrication at the predetermined amount.

In FIG. 3, reference numeral 15 is a control device utilizing a conventionally well-known microcomputer or the like, and as described above, a flow rate pulse signal from a flow rate pulse transmitter 18 connected to a flow meter 17 provided in the middle of the oil supply pipe 16, a nozzle switch 6 Nozzle removal signal from,
An input signal from the keyboard 9 of the input device 8 is respectively introduced, and an output signal from the control device 15 is connected to the refueling pump 19, a refueling motor 20, a valve base 21, a display 7 for displaying refueling data, and a display of preset values. Introduced to vessel 10.

Next, the usage and operation will be described with reference to the flowcharts of FIGS.

First, the case of normal refueling in which the refueling amount is not preset will be described with reference to the flowchart of FIG. 4. When the refueling nozzle 4 is removed from the nozzle hook 5, the nozzle switch 6 is turned on in synchronization with this (step a), This nozzle removal signal is input to the control device 15, and the refueling motor 20 is turned on by the output from the control device 15 to drive the refueling pump 19, and at the same time,
The previous refueling data displayed on the display 7 is reset to zero, and the valve base 21 is opened to allow refueling (step B).

Therefore, if the refueling nozzle 4 is inserted into the refueling port of a car or a kerosene container and the nozzle valve is opened, oil is discharged from the tip of the refueling nozzle 4 and refueling is started.
A flow rate pulse is input to the control device 15, and it is determined that refueling is started (step C, D). When the desired amount of oil has been supplied, the nozzle valve is closed and the oil supply nozzle 4 is returned to the nozzle hook 5 so that the nozzle switch 6 is turned off (step E), and this nozzle hook signal enters the control device 15 and the control device 15 As a result, the refueling motor 20 and the refueling pump 19 stop, and at the same time, the main valve 21 closes and the refueling ends (step F).

Next, there will be described a case where there are a large number of kerosene cans each containing 18, for example, and a case where these are continuously supplied with preset refueling.

As shown in the flowchart of FIG. 5, in order to set "18" as the preset amount, if "18" is entered by the ten-key pad 11 as the preset numerical value before starting refueling (step D), this numerical value " 18 "is the display 10
Is displayed on the screen (Steps), check it, and then enter the unit input key 14b as the unit for the preset amount.
If the unit "" is input using (step N), the preset amount "18" is set (step N).

Then, before refueling starts (step c), the continuous switch 12
When is turned on (Stepra), a fixed amount of 18 continuous lubrication is set (Stepm).

Next, as in the case of the normal refueling, if the refueling nozzle 4 is removed from the nozzle hook 5, the nozzle switch 6 is turned on (step a) in synchronization with this, the refueling motor 20 is turned on, and the refueling pump 19 is driven. , The display on the display 7 is reset to zero, and the main valve 21 is opened (step B).

Then, as described based on the flowchart of FIG. 5, the preset amount and the continuous refueling are set before refueling (step C, G).

Next, insert the tip of the refueling nozzle 4 into the first kerosene can, pull the lever 42 and hang it on the latch 47, open the nozzle valve 43 to refuel, and when the preset amount of 18 is reached (step step), The control device 15 automatically stops the refueling motor 20 and the refueling pump 19 and closes the main valve 21. At the same time, one refueling is counted (stepping).

At this time, the main valve 21 is closed and the hydraulic pressure in the fuel supply hose 3 is reduced, whereby the nozzle valve is automatically closed. After a lapse of 2 seconds (step number), the refueling motor 20 and the refueling pump 19 are turned on again by the output from the control device 15, and the main valve
21 also opens again (staple).

In this case, since the nozzle valve is closed as described above even if the oil flows into the oil supply hose 3 and the hydraulic pressure rises due to the opening of the main valve 21, there is no possibility that the oil is discharged from the oil supply nozzle 4.

Then, the lever 42 of the refueling nozzle 4 is returned, pulled again, the nozzle valve is opened, and refueling is continued to the second kerosene can. This second refueling is the same as the first refueling.
Refueling is automatically stopped when is reached, and the number of times of refueling is counted twice, and after 2 seconds has elapsed, refueling is again possible (step, re, n, le).

This operation is repeated for the number of kerosene cans, and all the kerosene cans have been supplied with a preset amount of 18 preset amounts.
When the valve is returned to the nozzle hook 5, the nozzle switch 6 is turned off (step S), whereby the control device 15 stops the refueling motor 20 and the refueling pump 19 and closes the main valve 21 to end the continuous preset refueling ( Stepwa).

To confirm the preset amount after continuous preset refueling, press the confirmation switch 13 provided on the input device 8 (step No.) as shown in the flowchart of FIG. The number of times, that is, the number of refueled kerosene cans is displayed (step E). Such a display is performed, for example, for 10 seconds, and if the confirmation switch 13 is continuously pressed again during this time (step, Y), the display 10
The preset amount “18” is displayed for 10 seconds (Stepma, Ke, F). The preset amount "18" is displayed
If the confirmation switch 13 is pressed again within 10 seconds, the number of cans initially displayed is displayed again (stepco, e).

Next, a case will be described in which only preset setting is performed and continuous refueling is not performed.

As shown in the flowchart of FIG. 5, in order to set "18" as the preset amount, if "18" is entered by the ten-key pad 11 as the preset numerical value before starting refueling (step D), this numerical value " 18 "is the display 10
Is displayed on the screen (Steps), check it, and then enter the unit input key 14b as the unit for the preset amount.
If the unit "" is input using (step N), the preset amount "18" is set (step N).

Next, as in the case of the preset continuous refueling described above, the refueling nozzle 4 is removed from the nozzle hook 5 and the nozzle valve is opened (steps I, B, C, C, and C), and the fuel is pumped from the underground tank by the refueling pump 19. The amount of oil that flows in the oil supply pipe 16 is measured by the flow meter 17 and output from the flow rate pulse transmitter 18 to the control device 15 as a flow rate pulse signal.

When the flow rate reaches the preset amount (step yo), the refueling motor 20 and the refueling pump 19 are stopped by the output from the controller 15, and the main valve 21 is closed (step).

Next, if the oil supply nozzle 4 is returned to the nozzle hook 5, the nozzle switch 6 is turned off and the oil supply is completed (step step).

〔The invention's effect〕

As described above, the oil supply device of the present invention is capable of presetting a preset amount once in a case where a large number of kerosene containers and a large number of land transport vehicles are continuously preset for refueling. Since it is not necessary to set the preset amount each time when refueling a can or each land transportation vehicle, it is possible to save the trouble of preset setting and improve workability.

In addition, since the nozzle valve is closed before the start of the next preset refueling that is continuously performed, there is no risk of oil being discharged from the refueling nozzle, and it is safe.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of an oil supply device of the present invention, and FIG.
The figure is a front view of the input device, which is a main part of the same as above, FIG. 3 is a block diagram of an embodiment, FIGS. 4 to 6 are flowcharts showing the operation, and FIG. 7 (a) and (b) are preset oil supply devices. It is sectional drawing which shows the example of the oil supply nozzle used. 1 ... Island, 2 ... Refueling machine case 3 ... Refueling hose, 4 ... Refueling nozzle, 5 ... Nozzle, 6 ... Nozzle switch, 7 ... Display, 8 ... Input device, 9 ... Keyboard, 10 …… Display unit 11 …… Numeric keypad, 12 …… Continuous switch 13 …… Confirmation switch, 14a, 14b …… Unit input key 15 …… Control device, 16 …… Oil supply pipe 17 …… Flowmeter, 18 …… Flow rate pulse Transmitter 19 …… Lubrication pump, 20 …… Lubrication motor 21 …… Main valve, 31 …… Passage 32 …… Chamber, 33, 35 …… Diaphragm 34 …… Cap, 36 …… Pin 37 …… Roller guide, 38 ...... Spring 39 …… Roller, 40 …… Valve rod 41 …… Lock pin, 42 …… Lever 43 …… Nozzle valve, 44 …… Spring 45 …… Opening, 46 …… Negative pressure generating part 47 …… Latch

Claims (1)

[Claims] 1. A refueling pump, a flow meter, and a main valve provided in a refueling machine case are connected by a refueling pipe, a refueling hose is connected to the refueling pipe, and a lever is pulled when the hydraulic pressure rises at the tip of the refueling hose. The valve can be opened, and a refueling nozzle with a nozzle valve that automatically closes even when the lever is pulled when the fluid pressure drops is provided.Furthermore, a refueling motor for driving the refueling pump and a pulse transmitter and nozzle hook provided on the flowmeter are installed. A nozzle switch provided in the and a control device connected to a keyboard having a continuous refueling setting switch and a preset amount setting switch, the control device is a continuous refueling setting signal and preset amount setting signal from the keyboard and from the nozzle switch Means for driving the refueling motor in response to the nozzle removal signal and opening the main valve to start liquid delivery; and means for closing the main valve and stopping the fluid delivery after refueling a set amount. And a means for reopening the main valve and restarting the liquid feeding after a fixed time has passed since the back liquid was stopped.