JP3090246B2 - Lori oiling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas purge pipe connected to an exhaust device, an oil supply pipe connected to an oil feeder, a loading arm connected to the gas purge pipe and the oil supply pipe, The present invention relates to an oil supply device for lorries provided with a manual opening / closing valve and a switch box provided in the middle of a loading arm, and a control device that receives a signal from the switch box and controls an exhaust device and an oil supply device.

[0002]

2. Description of the Related Art As is well known, the same type of oil is not always supplied to a lorry hatch at the time of refueling, and gasoline may be supplied and then light oil or kerosene may be supplied. At that time, since it is dangerous if the gasoline vapor is not removed, various exhaust technologies are proposed for the loading arm for light oil or kerosene (for example, JP-A-6-156594, JP-A-6-179492). Reference). However, since each of these known techniques has a branch portion downstream of the manual on-off valve near the upper end of the drop pipe, when the drop pipe is moved, a loading arm for feeding oil and a gas purge pipe for purging gas are provided. Had to be moved at the same time, the operation was troublesome, and attention had to be paid to the design.

[0003]

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a lorry lubricating apparatus which can easily perform a lubricating operation and can appropriately perform a gas purge.

[0004]

According to the present invention, a gas purge pipe connected to an exhaust device, an oil supply pipe connected to an oil supply device, and loading connected to the gas purge pipe and the oil supply pipe are provided. An arm, a manual opening / closing valve and a switch box provided in the middle of the loading arm,
In a lorry refueling device provided with a control device that receives a start signal from a switch of the switch box and controls an exhaust device and an oil supply device, a valve opening sensor is provided for the manual opening / closing valve, and the control device Gas purge means for receiving a start signal from a gas purge switch provided in the switch box and a signal detected by a valve opening sensor that the manual open / close valve is open, and outputting a drive signal to the exhaust device; and a gas purge means provided in the switch box. Refueling control means for receiving a start signal from the supplied refueling switch and a signal detected by a valve opening sensor that the manual open / close valve is open, and outputting a drive signal to the refueling device.

Further, according to the present invention, the exhaust device comprises a blower connected to the vapor processing device and a main valve,
The main valve is opened by the drive signal and the blower is driven to perform gas purging for a certain period of time.The oil feeder is composed of a pump, a flow meter, and the main valve connected to the oil storage tank. After opening, and refueling the amount set by the preset switch provided in the switch box, the lubrication is stopped.

Further, according to the present invention, the valve open sensor includes an air switch that opens and closes in conjunction with an open / close lever of a manual open / close valve;
The switch is configured to be closed by an air pressure applied when the air switch is opened, and a signal from the switch is input to the control device.

Further, according to the present invention, the drop pipe of the loading arm is composed of a fixed pipe and a slide pipe, a liquid level sensor is provided at the lower end of the fixed pipe, and gas purge is performed by a liquid detection signal from the liquid level sensor. The start signal from the switch is invalidated and notified.

Further, according to the present invention, the liquid level sensor comprises an air switch which opens and closes by receiving a back pressure due to the liquid level, and a switch which closes by an air pressure applied when the air switch is opened. A signal from the switch is input to the control device.

Further, according to the present invention, the loading arm is provided with an air breaker for allowing the oil in the loading arm to smoothly flow down from the drop pipe after the main valve is closed.

[0010]

Therefore, when the loading arm is operated, the loading arm can be easily operated in the same manner as without the conventional gas purge pipe.
Further, since the oil supply device and the air exhaust device are operated by the oil supply switch and the gas purge switch provided in the switch box and the valve opening sensor of the manual open / close valve, the operation is reliable.
Therefore, it is possible to perform a safe and reliable refueling operation for a worker who works on the lorry.

[0011]

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

FIG. 1 shows an oil tank station in which the present invention is implemented. In the figure, a plurality of (three in the illustrated embodiment) oil supply devices 2a, 2b and 2c are provided on a rack indicated by reference numeral 1 as a whole.
Are provided, and display units 3a, 3b and 3c having local computers LCa to LCc for controlling the refueling devices 2a to 2c are provided at an easily visible position above the rack 1. To make it easier to understand now,
The refueling device 2a supplies high octane gasoline, the refueling device 2b supplies regular gasoline, and the refueling device 2c supplies light oil. Each of the display units 3a to 3c has a total preset amount indicator 4a and a refueling indicator 4b, and a status indicator can be provided as necessary.

The lorry 5 laid sideways on the rack 1 is supplied with respective oils from the respective oiling devices 2a, 2b and 2c. The arm 6 is provided with a switch box B provided with a switch described later. As is well known, the tank 5 of the lorry 5 is divided into a plurality of hatches 8a to 8c. During the refueling operation, the lorry 5 is connected to the connector 10 of the ground wire 9 and grounded. Further, a sub-computer SC having a card reader 11 for confirming the vehicle number of the lorry 5 and the like and an alarm 40 is provided at an appropriate position of the rack 1.
And the local computers LCa to LCc are connected to a line L1.
Connected by A plurality of such racks 1 are installed in an oil depot.

On the other hand, a host computer HC is installed in an independent office at a position away from the rack 1 to input data and issue a slip, and is connected to the sub-computer SC by a line L2. ing.

Further, a light oil storage tank T installed in the oil tank place (only the light oil tank is shown in the illustrated example, but naturally high-octane gasoline and regular gasoline oil storage tanks are also installed). Provided by a pump P driven by a motor m1.
The oil is supplied to the loading arm 6 of the oil supply device 2c through the oil supply pipe 12.
And an on-off valve 14. These pumps,
The oil feed pipe 12, the flow meter 13, and the on-off valve 14 constitute an oil feed device. On the other hand, the exhaust pipe 15 is connected to a vapor processing device 18 via a blower 17 driven by a motor m2 to suck the vapor. The exhaust pipe 15, the blower 17, and the vapor processing device 18 constitute an exhaust device. The exhaust pipe 15 and the oil supply pipe 12 are connected to the loading arm 6 as described in FIG.

In the example of FIG. 1, the lorry 5 has the last hatch 8a.
Assuming that high-octane gasoline was loaded with regular gasoline in hatch 8b, and regular gasoline was also loaded in hatch 8c, this time with high-octane gasoline in hatch 8a, regular gasoline in hatch 8b, and hatch 8c Shall supply light oil. Therefore, the hatch 8c must be gas purged.

As shown in FIG. 2, the exhaust pipe 15 (in FIG. 2, the exhaust pipe 15 is drawn upward, but this is written in an easy-to-understand manner and is actually piped as shown in FIG. 1). Is connected to a gas purge pipe 21 and the oil feed pipe 12
Is connected to an oil supply pipe 20. These oil supply pipes 20
The gas purge pipe 21 is integrally formed, can be rotated around a vertical axis by swivels 23a and 23b, and extends horizontally. The main valve 2 is connected to the gas purge pipe 21.
2 is provided and the oil supply pipe 20 is provided with an air breaker 16. The oil supply pipe 20 and the gas purge pipe 21 are connected to each other by a T-piece 24 provided on the downstream side thereof, and are connected to the loading arm 6 via a known swivel mechanism 25 capable of rotating horizontally and vertically. .

The loading arm 6 is provided with a switch box B having an oil supply switch SW1, a gas purge switch SW2, and a preset switch SW3. A manual opening / closing valve 27 operated by a handle 26 is provided at the downstream end of the loading arm 6, and a known drop pipe 28 is connected through the manual opening / closing valve 27. This manual opening / closing valve 27 is, for example, Japanese Patent Publication No. 5-63673.
The one described in Japanese Patent Application Laid-Open Publication No. H10-260 can be used. The drop pipe 28 is composed of a fixed pipe 28a and a slide pipe 28b, and is slidable (expandable and contractable).

As shown, a first liquid level sensor 30 and a second liquid level sensor 31 above and below the fixed pipe 28a are provided on the drop pipe 28, respectively. The liquid level sensor 30 outputs a liquid detection signal to the control device as described later, and the second liquid level sensor 31 closes the manual opening / closing valve 27. The configuration is disclosed in Japanese Patent Publication No. 5-63673. It is as described in.

FIG. 3 shows a control circuit implemented in the present invention. In FIG. 3, a line La is connected from an air source O to a first air switch 32 which opens and closes a line La by a handle 26 of a manual opening / closing valve 27, and is connected to a first pressure switch 33 having an explosion-proof structure via a line Lb. ing.
The first air switch 32 and the first pressure switch 33
Constitutes a valve opening sensor.

Further, the first air switch 32 is connected to the line L
c to a second air switch 34 and a second pressure switch 35 of explosion-proof construction via line Ld.
It is connected to the. The second air switch 34 is opened by the interface valve 36 when the differential pressure type liquid level sensor 30 detects the liquid level W and outputs a signal pressure to the interface valve 36.

Accordingly, the first pressure switch 33 outputs a valve opening signal via the line Le when the manual on-off valve 27 is opened, and the second pressure switch 35 outputs the manual on-off valve 2
When the liquid level W rises and the liquid level sensor 30 detects the liquid level W, a liquid level signal is output via the line Lf. Local computer L of oil supply unit 2c for light oil
As described later, the control device C of Cc receives the signals from the switches SW1, SW2, SW3 of the switch box B, the valve open signal from the run Le, and the liquid level signal from the line Lf to open / close the valve 14 or the pump motor. m1, the main valve 22, the blower motor m2, and the alarm 40 are operated. The control device C includes a gas purge unit 41 that outputs a drive signal to the exhaust device and a refueling control unit 42 that outputs a drive signal to the oil supply device, as described later.

Next, a refueling operation according to the present invention will be described with reference to FIGS. FIG. 4 shows the flow of gas purging. As shown in FIG. 1, when the driver of the lorry inserts the drop pipe 28 of the refueling device 2c into the hatch 8c and the driver presses the gas purge switch SW2 (step S1), The control device C determines whether the first pressure switch 33 constituting the valve opening sensor is operating (Step S2). If the manual on-off valve 27 is closed, step S2 is NO, and the annunciator 40 gives a notification, for example, "Please open the manual on-off valve" (step S2).
3). When the manual on-off valve 27 is open (step S2
Is YES), the controller C determines whether the liquid level sensor 30 is operating, that is, whether the second pressure switch 35 is operating (step S4). For example, the hatch of 4 kl is usually filled twice with 2 kl each time, so if it is inserted once, the liquid level W is at the position where the liquid level sensor 30 is activated. Therefore, when 2 kl of oil has already been filled (in the case of YES in step S4), the alarm 40 notifies, for example, "there is oil in the tank" (step S5). In this case, the gas purge is invalid. And If NO in step S4, the main valve 22 is opened to drive the blower 17 (step S6). Thus, the gas purging operation is performed. This operation is performed for a fixed time.

After the gas purging operation is performed, a refueling operation is performed according to FIG.

When the driver first presses the preset switch SW3 to set a preset amount (step S7), and then presses the refueling switch SW1 (step S8), the control device C receives a signal from the first pressure switch 33 and the control device C causes the handle 2 to move.
Then, it is determined whether or not 6 has been operated to open the manual on-off valve 27 (step S9). If step S9 is NO
That is, when the manual on-off valve 27 is closed, the alarm 4
For example, 0 gives a notification that "Please open the manual on-off valve" (step S10). If step S9 is YES, the on-off valve 14 is opened, the motor m1 is driven, and the oil feeder is driven (step S11). Then, when the preset amount is reached, the refueling operation stops. If an overflow occurs, the second liquid level sensor 31 is activated and the manual on-off valve 27 is automatically closed.

[0026]

As described above, according to the present invention, the following excellent effects can be obtained. (1) Since the gas purge pipe and the oil supply pipe are connected to the upstream side of the loading arm, the operation of the loading arm is easy. (2) Since a switch box is provided on the loading arm, refueling work and gas purging work are easy. (3) The gas purge operation and the oil supply operation can be reliably performed by the gas purge unit and the oil supply control unit. That is, there is no gas purge without opening the manual on-off valve.

[Brief description of the drawings]

FIG. 1 is an overall explanatory diagram of a lorry lubrication device embodying the present invention.

FIG. 2 is an explanatory view showing an exhaust device, an oil supply device, and a loading arm embodying the present invention.

FIG. 3 is a block diagram showing a control system for implementing the present invention.

FIG. 4 is a flowchart showing a gas purge operation.

FIG. 5 is a flowchart showing a refueling operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Rack 2a, 2b, 2c ... Oil supply device 3a, 3b, 3c ... Display part 5 ... Lorry 6 ... Loading arm 7 ... Tank 8a, 8b, 8c ... Hatch 9 ground wire 10 connector 11 card reader 12 oil supply pipe 13 flow meter 14 on-off valve 15 air exhaust pipe 16 air breaker 17 Blower 18 Vapor treatment device 20 Oil supply pipe 21 Gas purge pipe 22 Main valve 23a, 23b Swivel 24 T-piece 25 Swivel mechanism 26 Handle 27 Manual on-off valve 28 Drop pipe 30 First liquid level sensor 31 Second liquid level sensor 32 First air switch 33 First Pressure switch 34 ... second Air switch 35 ... second pressure switch 36 ... interface valve 40 ... alarm 41 ... gas purge control means 42 ... refueling control means B ... switch box HC ... host computer SC ... Subcomputer LC ... Local computer La, Lb, Lc, Ld, Le, Lf ... Line m1, m2 ... Motor O ... Air source P ... Pump SW1 ... Fuel switch SW2: gas purge switch SW3: preset switch

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-6086 (JP, A) JP-A-8-2593 (JP, A) JP-A-6-156594 (JP, A) 146300 (JP, U) Japanese Utility Model 3-120497 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B67D 5/00-5/70 G07F 5/00-9/10

Claims (6)

(57) [Claims] 1. A gas purge pipe connected to an exhaust device,
The oil supply pipe connected to the oil feeder, the loading arm connected to the gas purge pipe and the oil supply pipe, the manual open / close valve and the switch box provided in the middle of the loading arm, and the switch of the switch box In the lorry refueling device provided with a control device that receives the start signal and controls the exhaust device and the oil supply device,
The manual opening / closing valve is provided with a valve opening sensor, and the control device receives the start signal from the gas purge switch provided in the switch box and the signal detected by the valve opening sensor that the manual opening / closing valve is open, and exhausts air. A gas purge unit for outputting a drive signal to the device, a start signal from a refueling switch provided in the switch box, and a signal detected by a valve open sensor that the manual open / close valve is open, and a drive signal to the oil feeder. And a refueling control means for outputting oil. 2. The exhaust device comprises a blower and a main valve connected to a vapor processing device. The main valve is opened by a drive signal to drive the blower to perform gas purging for a certain period of time. It is composed of a connected pump, a flow meter, and a main valve.The pump is driven by a drive signal to open the main valve,
The oil supply device for a lorry according to claim 1, wherein the oil supply is stopped after the amount set by a preset switch provided in the switch box is supplied. 3. The valve opening sensor comprises an air switch that opens and closes in conjunction with an open / close lever of a manual open / close valve, and a switch that closes by air pressure applied when the air switch is opened. 2. The lorry refueling device according to claim 1, wherein the signal is input to the control device. 4. A drop pipe of the loading arm comprises a fixed pipe and a slide pipe, a liquid level sensor is provided at a lower end of the fixed pipe, and a start signal from a gas purge switch is supplied by a liquid detection signal from the liquid level sensor. The lorry refueling device according to claim 1, wherein the refueling device is invalidated and informs. 5. A liquid level sensor comprising an air switch which opens and closes by receiving a back pressure due to a liquid level, and a switch which closes by an air pressure applied when the air switch is opened, and a signal from the switch is provided. 5. The lorry refueling device according to claim 4, which is input to a control device. 6. An oil supply device for a lorry according to claim 1, wherein the loading arm is provided with an air breaker for allowing oil in the loading arm to smoothly flow down from the drop pipe after the main valve is closed.