JPH0333598B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a display device for oil depots.

As is well known, oil depots supply various types of oil, such as high octane, gasoline, regular gasoline, and diesel oil, to the hatches of lorries, and the lorries deliver these oils to filling stations.

In such oil depots, displays are installed to enable efficient visual confirmation of refueling work, and the displays display information regarding the amount of refueling, such as the preset amount, the amount of oil refueled during refueling, and the status. In other words, displays related to the status of the refueling system, such as whether the lorry has been grounded, whether a card containing the lorry's vehicle number etc. has been read into the card reader, and whether the preset amount has been set. must be displayed. For this purpose, a large number of display parts are required, and the installation location must be, for example, suspended from the ceiling of a rack, or a post must be erected on the rack, and the display must be mounted on the post, which requires a relatively large-scale installation. Construction was required.

On the other hand, at oil depots, refueling work is carried out by inserting a loading arm into the hatch of a lorry. For example, it is very easy to see and convenient to attach a display device to the loading arm, so workers can It was requested that it be installed relatively close to the However, for the reasons mentioned above, this demand could not be satisfied in the past.

Other conventional techniques include, for example,
Publication No. 48281 discloses a technology in which a refueling amount indicator is installed near the nozzle, and also
Microfilm No. 86623 (Utility Model Application No. 57-9795) discloses a technology in which a refueling amount setting device and a refueling start button are provided on the loading arm.

However, in these conventional techniques, the number of operating means disposed near the worker is small, and it is insufficient to reduce the labor required for refueling work or to downsize the refueling device. Another problem is that the display regarding the status (state of the refueling device) is not placed near the refueling worker.

The present invention has been proposed in view of the problems of the prior art described above, and aims to provide a display device for oil depots that can display the amount of refueling and status with a minimum display section and is easy to downsize.

The display device for an oil depot of the present invention is equipped with a refueling pump, piping, and a flow meter, and a loading arm for supplying liquid to a lorry is provided with a rotary joint, and a preset amount setting means, a refueling start and a flowmeter are provided.
In a display device for an oil depot equipped with a stop switch and a preset lubrication means, the preset amount setting means and the lubrication start and
A case containing a stop switch and a plurality of indicators arranged side by side is installed in the piping of the loading arm connected to the drop pipe, and these indicators can be operated individually or by a plurality of adjacent indicators. A code indicating that the refueling preparation work such as ground connection before refueling has been completed is displayed, along with the set preset amount. When refueling is started, the preset amount disappears and the refueling amount is displayed, and furthermore, if a malfunction occurs during refueling, the preset amount is displayed. When this occurs, the display of the amount of refueling disappears and a code indicating the failure is displayed in response to a signal from the failure detection means.

According to the present invention having the configuration as described above,
A joint display that can display the amount of refueling when refueling and the state of the refueling device when not refueling is housed in the case and installed in the piping in the loading arm, so it can be placed near the refueling worker. Since a large number of operating means are arranged, the labor required for refueling work can be easily reduced. Also,
It is advantageous that the status display, which is essential during the refueling operation, is also placed near the refueling worker.
Furthermore, since the display related to refueling and the display related to the status can be displayed on the same display section, the display section only needs to have about 4 or 5 displays that display codes, such as numbers 0 to 9, and can be made extremely compact. It will become.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an oil depot in which the present invention is implemented. A rack designated by the reference numeral 1 in the figure is provided with a plurality (three in the illustrated embodiment) of oil supply devices 2a, 2b and 2c. Each oil supply device 2a, 2
The oil types b and 2c are different, for example, the fuel supply device 2a supplies high octane gasoline, the fuel supply device 2b supplies regular gasoline, and the fuel supply device 2c supplies diesel oil. Each oil supply device 2a, 2b, 2c has a similar configuration. A strainer, a control valve, a flow meter, and a control device for an oil supply system (not shown) are provided on the lower side of the rack plate 3 in a known manner. It is adapted to be supplied to each hatch 5a, 5b, 5c, and 5d. In the illustrated example, high octane gasoline is being supplied from the loading arm 8a to the hatch 5b. Each loading arm 8a, 8b, 8c is connected to a respective oil type piping 16 via a strainer, a control valve, and a flow meter that are connected in series, and is connected to an oil storage tank 18 via a pump 17. connected. (Only one type of oil is shown in the drawing.) A case 20 is attached to the rack plate 3 via a support, and this case 20 is provided with a card reader 21 and a control device for the card reader 21. . Furthermore, a ground connector 23 for grounding the lorry 4 is easily attached.

On the other hand, an office 25 is established at a location away from the rack 1, and a data input/output device 26 is provided within this office 25.
A control device provided in the rack 1 and a control device for a card reader are connected by a signal line 27 so that information is transmitted by serial communication. Further, a control device for the card reader is connected to the card reader 21 and the ground connector 23.

According to the invention, the display 10a is provided on the loading arm 8a, and similarly displays 10b, 10 are provided on the other loading arms 8b, 8c.
c is provided. Therefore, hereinafter, when there is no need to distinguish that it is a display provided on a specific loading arm, it will simply be referred to as the display 10.
Further, reference numeral 9a in the figure is a main valve, which is also provided in other similar loading arms.

An example of this display 10 is shown in FIG. In the illustrated example, there are five display sections A, B, C, D, and E arranged side by side, and a switch board 30 provided below the display sections.The switch board 30 has a start button 31 and a preset switch. 32, recall button 33 and stop button 34
For example, when this preset switch is turned to the left, it is set to 1 Kl, and when turned to the right, it is set to 2 Kl.

Next, the operation will be explained mainly with reference to FIGS. 3 and 4.

Data input/output device 2 installed in office 25 of oil depot
The oil supply data for each card is input in advance in 6, and the type and amount of oil to be oiled to the lorry 4 specified by the card, the destination, etc. are all specified.

The lorry 4 is stopped at the refueling position of the rack 1, and the ground connector 23 is grounded (step S ₁ ). This ground signal is sent to the control device in the case 20, that is, the local computer _RC1 . This local computer RC ₁ has means for detecting normality and abnormality of the ground. The ground signal from the control device _RC1 is sent to the refueling control device for each refueling device, for example, the loading arm 8a, that is, the local computer RC2a (the reference numeral RC2b relates to the loading arm 8b). The signal is sent by serial transmission to a control device, that is, a local computer _RC3 provided in the case 10 of the display, and the display section A is lit so that, for example, the code is displayed as O (step _S2 ). Next, the driver causes the card reader 21 to read his/her card (step _S3 ). Then, a card reading signal is sent to the control device RC ₃ , which lights up the display section B as shown in the display O (step 3).
S ₄ ), the car number signal from the card enters the data input/output device 26 and is transmitted to the data input/output device 26, and the stored amount of oil for each oil type is sent to the control device.
Display sections D and E are turned on via RC2a and _RC3 (step _S5 ). This display allows drivers to check the amount of oil they should load. Data input/output device 26 and control devices RC ₁ , RC2a, RC2b...
After all, serial transmission is performed. For example, if the amount of refueling is 12Kl, 1 will be lit on the display D and 2 will be lit on the display E. Next, insert the loading arm 8a into the hatch refueling port of the lorry 4, and set the preset setting switch 32 to 1Kl or 2Kl (step 1).
_S6 ). For example, if the preset amount is set to 2Kl, the set value is preset to the control device RC2a, the displays D and E disappear, and "2", which is 2Kl, is displayed on the display E (step _S7) . ),
The display on display section D disappears. And the driver is Motoben9
a and press the start button 31 (step _S8 ), the signal is transmitted from the control device RC ₃ to the control device
The fuel is sent to the RC 2a, the control valve 11 is opened, and refueling is started. The flow rate pulse signal from the flow meter 12 is sent to the control device RC2a and counted, and displayed on the display section A.
to E, the flow rate is displayed one by one (step
_S9 ). In this case, for example, display part A is in units of 10 Kl, display part B is in units of 1 Kl, display part C is in units of 100,
Display D is shown in units of 10, and display E is shown in units of 1. This quantity is the preset quantity (2
Kl) is constantly compared by the control device RC2a, and when it reaches the preset amount (step _S10 ), the control device RC2a
a closes the control valve 11, and after a certain period of time, for example, 1 second, displays the remaining oil amount, that is, 12-2 = 10Kl, on the display sections D and E for confirmation (step _S11 ), that is, in this case, the display section D shows "1". ”, and the display part E
is "0". In this way, the presence or absence of the remaining oil supply amount is checked (step _S12 ), and if there is a remaining oil supply amount, the loading arm 8a is moved to another hatch and the work from step S6 is performed. If there is no remaining oil, disconnect the ground connector 23, and the ground signal disappears (step _S13 ).
Lori takes off.

Control devices RC2a, RC2b for each oil supply device...
The control valve 11 and the flow meter 12 are each provided with failure detection means Ka to Kc, and if any of these elements fails, the control valve RO2a of the oil supply system that is supplying oil at that time is immediately sent to the control valve. 11 valve closing signals are generated. In step _S11 , if the preset amount has not been reached, that is, if refueling is in progress, the signal is judged in step _S14 as to whether or not an abnormal signal has come, and if there is no abnormal signal, the process proceeds to step _S9 . be returned.

Therefore, if there is no abnormality signal from the failure detection means, oil is being supplied to the preset amount. However, if an abnormality signal is received from the failure detection means during refueling, the control device RC2a
A valve closing signal is generated at control valve 1 (step S ₁₅ ), and control valve 1 is closed.
1 closes. A signal is generated to display an abnormal signal on display sections A and B (step _S16 ), and control device RC
2a erases the refueling amount display and displays the display part A,
A code indicating the location of the failure, for example a two-digit number, is displayed at B. For example, in the case of a control valve, this failure display is "11", that is, both display parts A and B.
In the case of the flowmeter, it is "1", that is, the display part A is "1", the display part B is "2", and in the case of the control device RC2a, it is "13". Such a failure display may be set arbitrarily.

As described above, according to the present invention, the refueling amount display and the status display can be displayed in the same display, and therefore the entire display device can be downsized and can be mounted in any easily visible position, for example, on the loading arm. , can be suitably implemented in this type of oil supply device.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a gas station implementing the present invention, FIG. 2 is a front view of a display device according to the present invention, FIG. 3 is a diagram showing a control circuit implemented in the present invention, and FIG. This is a chart explaining the operation when implementing the present invention. DESCRIPTION OF SYMBOLS 1... Rack, 2a, 2b, 2c... Oil supply device, 4... Lorry, 8a, 8b, 8c... Loading arm, 10, 10a... Display device, A,
B, C, D, E...display section, 30...keyboard, 11...control valve, 12...flowmeter, RC2a,
RC2b...control device for the refueling device, _RC3 ...control device for the display device, 26...data input/output device.

Claims (1)

[Claims] 1 Equipped with a liquid supply pump, piping, and a flow meter, the loading arm that supplies liquid to the lorry is equipped with a rotating joint, and is equipped with a preset amount setting means, a lubricating start/stop switch, and a preset lubricating means. In a display device for an oil depot, a case housing the preset amount setting means, the refueling start/stop switch, and a plurality of indicators arranged side by side is connected to a drop pipe of a loading arm. These indicators are installed in the refueling area and display a code indicating that the refueling preparation work such as grounding has been completed before refueling, as well as the set preset amount, either singly or in multiple adjacent indicators, to indicate when refueling is started. When starting, the preset amount disappears and the amount of refueling is displayed, and if a failure occurs during refueling, the display of the amount of refueling disappears and a code indicating the failure is displayed in response to a signal from the failure detection means. Display device for oil depots.