JPH07257700A - Suspended refueling device - Google Patents

Abstract

(57) [Summary] [Purpose] To properly select and cancel the lubrication operation including the oil type determination function and the automatic full tank lubrication function without increasing the number of switches on hand. [Structure] A pump for feeding fuel oil from an oil storage tank, a flow meter for measuring the amount of refueling, a nozzle elevating device provided above the refueling area, a hose that is wound up and out by the nozzle elevating device, and a hose And a refueling nozzle connected to the tip of the refueling nozzle, a handy switch box provided with a plurality of switches in the vicinity of the refueling nozzle, a vapor concentration measuring means for measuring the vapor concentration in the automobile fuel tank, and a refueling amount indicator. , An oil type determination function, and a refueling control device having an automatic full tank refueling function, the hand switch box, if the nozzle is in the raised position, a lowering command,
Also, when it is in the lowered position, a switch that outputs a rise command, a switch that disables the oil type determination function before starting refueling, and a switch that resets the refueling amount indicator when pressed while refueling is stopped; A switch for canceling the automatic full tank refueling function when pressed before starting, and a switch for instructing restart of refueling when pressed after automatic full tank filling is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with a refueling nozzle at the tip of a refueling hose suspended from a ceiling, and a hand switch box having a plurality of switches for instructing selection of refueling operation near the refueling nozzle. The present invention relates to a suspension type oil supply device.

[0002]

[Prior Art] In order to effectively use the site of a gas station,
While the liquid supply metering means for supplying fuel oil and measuring the amount of oil supply is installed on the ground, a nozzle elevating device that winds the oil supply hose with the oil supply nozzle connected to the tip is installed in the canopy, and further oil supply is performed. A so-called suspension type oil supply device is used in which a handy switch box having a plurality of switches for instructing an operation is attached near the oil supply nozzle.
Conventionally, in such a suspension type refueling device, since the distance between the refueling nozzle and the control means is larger than that of the ground-installed type, it is difficult to incorporate an oil type determination function or an automatic full tank refueling, It had a normal refueling function that relies on human power, or at most a preset refueling function.

[0003]

However, in order to save labor and improve the safety of the refueling work, the suspension type refueling device has an oil type discrimination function and an automatic full tank refueling similar to the above ground refueling device. Functions are required, but
Since the number of switches for selecting these increases as the number of functions increases, many operation buttons are arranged in a small hand switch box, which may cause an operation error. The present invention has been made in view of such a problem, and an object thereof is to provide an oil type determination function and an automatic full tank refueling function without increasing the number of switches provided in a switch provided in a hand switch box. It is an object of the present invention to provide a novel suspension type oil supply device that can be reliably selected with a switch.

[0004]

In order to solve such a problem, in the present invention, a pump for feeding fuel oil in an oil storage tank, a flow meter for measuring the amount of refueling, and a pump provided above the refueling area are provided. Nozzle raising / lowering device, a hose wound up and fed out by the nozzle raising / lowering device, a refueling nozzle connected to the end of the hose, and a hand switch box provided in the vicinity of the refueling nozzle and provided with a plurality of switches A vapor concentration measuring means for measuring the vapor concentration in the vehicle fuel tank, a lubrication amount indicator, an oil type determination function, and an oil supply control device having an automatic full oil supply function,
The hand switch box has a switch that outputs a descending command when the nozzle is in the ascending position and an ascending command when the nozzle is in the descending position, and disables the oil type determination function before starting refueling. , A switch that resets the lubrication amount indicator when pressed while refueling is stopped, and the automatic full tank refueling function is canceled when pressed before refueling is started, and refueling is restarted when pressed after automatic full tank refueling. And a switch for commanding. Different functions are assigned to the same switch before the start of refueling and when refueling is stopped, and the required operation can be instructed with fewer switches than the types of functions to be selected.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the illustrated embodiments. 1 and 2 each show an embodiment of a refueling facility to which the suspension type refueling device of the present invention is applied. In the drawings, reference numeral 1 indicates a canopy 2 in a refueling area.
A hose reel 6, a hose reel that drives the hose reel 6 to rotate and wind the oil supply hose 5 that is connected to the oil supply pump 13 in the machine room 3 via the liquid supply conduit 4 by the hose lifting device provided in A motor 7 and a position detecting means 9 for detecting that a refueling nozzle 8 which will be described later connected to the tip of the hose 5 has reached an ascending position and a descending position are housed, and a hose 5 of the hose 5 is controlled by a controller 80 which will be described later. It is configured to control winding. The refueling nozzle 8 includes an automatic valve closing mechanism 30 and a vapor concentration measuring means 11, which will be described later. Note that reference numeral 79 in the drawing denotes an alarm device that gives an alarm when the oil types do not match as a result of the oil type determination.

On the other hand, in the machine room 3, an oil supply pump 13 for pumping fuel oil from the oil storage tank 12, a flow meter 15 connected via a stop valve 14, and a pump motor 16 for driving the oil supply pump 13 are installed. There is. The flow meter 15 is equipped with a flow rate pulse transmitter 18 that converts the measured amount into an electric signal.

The pump motor 16 and the stop valve 14 are controlled by a control device 80 which will be described later, and a signal from the flow rate pulse transmitter 18 is sent to the control device 80 and displayed on the display device 60 as the oil supply amount. It

Reference numeral 70 denotes a hand switch box provided with various switches for instructing a refueling operation, which is mounted near the nozzle 8 of the refueling hose 5 and, as shown in FIG. , Oil type determination function release / continuous oil supply switch 72, automatic full tank oil supply function release / oil supply restart switch 73, and preset oil supply switch 7
4 are provided. These switches 71, 72, 7
3, 74 are connected to the control device 80.

FIGS. 3 and 4 show an embodiment of the fueling nozzle 8 described above. The fueling nozzle main body 8 is composed of a cylinder tip portion 22 and a cylinder body portion 23, and the cylinder tip portion. An air passage pipe 26, one end of which communicates with an opening 25 provided near the tip of the cylinder tip portion 22, is inserted into 22, and the other end has a check valve provided in the cylinder body portion 23 through a passage 24. It is connected to the negative pressure generating unit 28 of 27, and further communicates with the negative pressure chamber 31 of the automatic valve closing mechanism 30 by the flow path 29.

On the other hand, a main valve chamber 32 is provided in the barrel portion 23, is connected to the other end of the fuel supply hose 5 connected to the side surface, and is provided in a flow path from the main valve chamber 32 to the barrel tip 22. A main valve 36, which is always urged by a spring 35 via a valve rod 34 so as to close the flow path, is provided, and a side surface of the cylindrical body portion 23 is provided with the main valve 36 as shown in FIG. Negative pressure chamber 31
An automatic valve closing mechanism 30 is provided to close the main valve 36 by deforming the diaphragm 37 by the negative pressure generated inside.

As is well known, the automatic valve closing mechanism 30 operates the main valve 36 when the opening 25 of the air passage pipe 26 located at the tip of the cylinder tip portion 22 is closed by the liquid in the vehicle fuel tank. The negative pressure chamber 31 communicating with the air flow passage tube 26 via the flow passage 29 is constantly urged outward (downward in the figure) by the spring 40. The diaphragm 37 is stretched.

The diaphragm 37 has a U-shaped piece 41 fixed thereto, and a pair of pins 42, 42 that slide in the long groove of the piece 41 are provided in a part of the valve rod 34. The push rod 44 is positioned in the notch 43, and is engaged with and disengaged from the recess 45 of the push rod 44 inserted in the valve rod 34, so that the valve rod 34 and the push rod 44 are brought into contact with and separated from each other.

The push rod 44 is always in contact with its rear surface by a spring 46 acting on its rear end so as to urge the refueling lever 47 forward, and one end thereof is rotatably supported by a pin 48. When the refueling lever 47 is pulled, the push rod 44 moves rightward in the figure against the spring 46, and the flow path is opened through the pin 42 and the valve rod 34 and the main valve 36 engaged with the push rod 44. Is configured.

A valve seat 50, which is in contact with the main valve 36 and closes the flow path, is slidably arranged on the upstream side of the check valve 27 in the barrel portion 23. This valve seat 50 has, in addition to its general function, the main valve 36 which is removed from the push rod 44 and abuts against it by liquid level detection, and the main valve 36 is moved to the right in the figure due to the subsequent decrease in liquid pressure. And has the function of engaging the valve rod 34 with the push rod 34 again via the pin 42. The valve seat 50 resists the urging force of the spring 35 to move the main valve 36 to the right in the figure. It receives the urging force of the spring 51 sufficient to move it to.

Further, the tube tip portion 22 has an opening 5 at its tip.
5 is provided, the vapor suction pipe 56, the refueling lever 4
Vapor concentration measuring means 1 operating in conjunction with pulling up of 7
It communicates with 1.

FIG. 6 shows an embodiment of the above-mentioned control device 80. The refueling control means 81 realizes an oil type determination function, an automatic full tank refueling function, a preset refueling function and the like. In addition to executing the control described above, the flow rate pulse from the flow rate pulse transmitter 18 is counted and displayed on the display 60.

Reference numeral 82 denotes a function switching means, which is a refueling control means 8
Depending on the state of the refueling operation controlled by 1, the switches 71, 72, 73, 74 before refueling and when refueling is stopped
The command signals switched as shown in Table 1 are output to the oil supply control means 81.

[0018]

[Table 1]

That is, before starting refueling, the switch 71 is made to function as a nozzle elevating switch, the switch 72 is made to function as an oil type determination function release switch, the switch 73 is made to function as an automatic full refueling function release switch, and the switch 74 is made to function as a preset refueling switch. Further, after the refueling is interrupted, the switch 72 functions as a continuous refueling switch and the switch 73 functions as a refueling resuming switch to output a signal.

Reference numeral 83 denotes a nozzle elevation control means which receives the signal from the oil supply control means 81 and the signal from the nozzle position detection means 9 and rotates the hose reel motor 7 forward and backward.

Reference numeral 84 is a vapor concentration measurement control means, which receives a signal from the oil supply control means 81 and which vapor concentration measurement means 11 receives the signal.
Is operated, the measurement signal is output to the refueling control means 81 to determine the oil type, and the alarm 79 is operated in response to the determination result by the refueling control means 81.

Reference numeral 85 denotes an oil supply control means, which is an oil supply control means 8
In response to the signal from 1, the drive of the pump motor 16 and the opening / closing operation of the stop valve 14 are controlled.

Next, the operation thus configured will be described with reference to the flow chart shown in FIG. 7 by taking an example of a suspension type oil supply device for supplying gasoline. When the nozzle 8 is in the raised position, the nozzle lifting switch 71
When is pressed (a), a nozzle down signal is output from the function switching means 82 and is output to the nozzle elevating control means 83 via the oil supply control means 81. As a result, the nozzle elevating / lowering control means 83 causes the hose reel motor 7 to rotate in the normal direction (step B) to pull out the hose 5, and at the time point when the hose 5 is pulled out to a position where refueling is possible (step C) Stop the hose reel motor 7 (step d).

The refueling control means 81 resets the display 60 to zero (step E), outputs an operation signal to the vapor concentration measurement control means 84, and enters the oil type determination operation (step F).

When the nozzle 8 is inserted into the fuel tank of the vehicle for refueling and the refueling lever 47 is pulled and locked by the locking piece 87, the vapor concentration measuring means 1 is interlocked with the lever 47.
1 operates to suck the vapor in the vehicle fuel tank from the opening 55 of the nozzle barrel tip 22, and outputs the vapor concentration contained therein to the refueling control means 81 via the vapor concentration measurement control means 84.

The oil supply control means 81 determines the oil type based on the input vapor concentration, and when the oil types match (step), outputs a signal to the oil supply control means 85 to operate the pump motor 16. (STEP CH) to start refueling.

(Automatic full refueling) When the switch 73 is not pressed before the start of refueling (step step), automatic full refueling is automatically set in the refueling control means 81 as a default mode (step C), If the switch 73 is pressed before starting refueling (step S), the automatic full tank refueling function is released and free refueling is set (step S).

That is, when refueling is started in a state where the switch 73 is not pressed, automatic full tank refueling is performed, fuel oil is discharged to the vehicle fuel tank, and a flow rate pulse generator 18 causes a flow rate pulse to coincide with the flow rate. Is output, the refueling control means 81 displays the refueling amount on the display 60 based on the flow rate pulse, and executes a series of operations required for refueling by the automatic full tank refueling function (step YO).

When the fuel oil is discharged from the refueling nozzle 8, the negative pressure of the negative pressure generating portion 28 of the check valve 27 acts on the negative pressure chamber 31 of the automatic closing valve 30, but in this case, the nozzle cylinder tip portion. Since the opening 25 of 22 is open to the atmosphere, the valve rod 34 remains locked to the bridge 42.

Incidentally, even if any of the switches 71 to 74 of the hand switch box 70 is pressed during this refueling,
The function switching means 82 invalidates the functions of these switches 71 to 74, and the refueling control means 81 continues to maintain the refueling operation.

As the refueling progresses, the liquid level in the vehicle fuel tank rises, and bubbles and fuel oil are introduced into the opening 25 at the tip of the nozzle barrel tip 22.
Then, the pressure in the negative pressure generating chamber 31 decreases, and the diaphragm 37 overcomes the force of the spring 40 to pull up the piece 42. As a result, the valve rod 34 is moved leftward in the figure by the spring 35 to bring the main valve 36 into contact with the valve seat 50 to close the flow path,
Stop refueling.

The oil supply control means 81 stops the pump motor 16 by stopping the input of the flow rate pulse to stop the supply of fuel oil to the nozzles 8 to reduce the pressure in the main valve chamber 32. As a result, the force of the spring 51 overcomes the force of the spring 35 to move the valve seat 50 together with the main valve 36 to the right in the figure, and the valve rod 3
4 is locked to the piece 42. The refueling control unit 8
In No. 1, the pump motor 16 is restarted to feed the fuel oil again to the nozzle 8 to restart the fuel supply to the vehicle fuel tank.

Hereinafter, the above process is repeated several times until the vehicle fuel tank is filled with oil. When refueling is completed, the nozzle 8 is pulled out from the vehicle fuel tank, and the refueling lever 47 is disengaged from the locking piece 87.

When the switch 71 is pressed after the end of refueling (steps O, T, S), the refueling control means 81 turns off the pump motor 16 (steps) and reverses the hose reel motor 7 (steps). . As a result, the hose 5 is wound around the reel 6 and rises. Nozzle 8
When reaches the raised position and the signal is output from the position detection means 9 (stepner), the nozzle elevation control means 10 stops the hose reel motor 7 (stepra).

(Free refueling) On the other hand, before the state where the oil type determination operation confirms that the oil types match (step) and the pump motor 16 is turned on (step), the refueling is already started. When the switch 73 is pressed (step), automatic full tank refueling is released and free refueling is set (step N).

When free refueling is performed and the refueling amount reaches the desired amount and the refueling lever 47 is returned, the main valve 36 moves to the valve seat 50 to cut off the flow path, and the refueling is stopped.

When the switch 71 is pressed after the end of refueling (step o, turn, re), the refueling control means 81 turns off the pump motor 16 (step), and reverses the hose reel motor 7 (step). As a result, the hose 5 is wound around the reel 6 and rises. Nozzle 8
When the nozzle reaches the ascending position (stepner), the nozzle elevation control means 10 stops the hose reel motor 7 (stepler).

On the other hand, when automatic full tank refueling or free refueling is completed (steps Y and L), that is, when the nozzle 8 has not been lifted yet and it is desired to continue refueling, the switch 72 is turned on. Press (step o).

Since the switch 72 is pressed while the refueling is stopped, the function switching means 82 commands the refueling control means 81 not the original command for canceling the oil type determination operation but the second command for continuous refueling. As a result, the pump motor 16 which has been in the ON state while the fuel supply is stopped is stopped (step W), and the process moves to step (E) to zero the display 60. As a result, the next refueling operation can be started without the need to raise or lower the refueling nozzle.

(Additional refueling) Further, it is desired to perform additional refueling on the same vehicle whose refueling is stopped while the refueling operation is stopped after a predetermined amount of refueling is completed by the automatic full tank refueling operation (step Y). In that case, the switch 73 is pressed (step).

The function switching means 82 determines that the current state is the refueling stop and instructs the refueling control means 81 to restart the refueling. The refueling control means 81 uses the pump motor 16
Is operated (STEP RE), the process returns to STEP (L), the free refueling operation is executed, and the refueling is restarted by adding to the previous refueling amount.

As described above, in the state where the refueling is stopped, until the switch 71 is pressed (step S0) to instruct the end of the refueling operation, the switch 72 is continuously pressed to refuel (step S). It is possible to select either additional lubrication by pressing the switch 73 (stepping).

On the other hand, by the oil type determination operation (step
F) When the matching of the oil types cannot be confirmed (step), the refueling control means 81 activates the alarm 79 to prompt confirmation of the oil types (step).

As a result of confirming the oil type based on the notification, if it is found that the oil type is erroneously determined, the switch 7
Press 2 (step no). In this case, since the refueling operation is not yet started, the function switching means 82 is the switch 72.
The notification is stopped by the function of canceling the oil type determination function originally assigned to (step), and the pump motor 16 is operated (step).

Further, as a result of confirming the oil type based on the notification, if it is confirmed that the oil types are different, the switch 71 is pressed (step). As a result, the refueling control means 81 stops the notification operation (step
YA), reverse the hose reel motor 7 (step
Ne), pull up the nozzle 8 to the raised position (step
(4) to stop the hose reel motor 7 (stepper).

In the above-described embodiment, the case where the present invention is applied to the suspension type oil supply device for gasoline has been described, but it is clear that the same effect can be obtained even when applied to the suspension type oil supply device for light oil.

Further, in the above embodiment, the switch for instructing the release of the oil type determining function and the release of the automatic full tank refueling function has another function when the refueling is stopped. It is obvious that the same effect can be obtained even if the switch 74 is assigned to the switch 74.

[0048]

As described above, according to the present invention, the pump for feeding the fuel oil in the oil storage tank, the flow meter for measuring the amount of refueling, the nozzle lifting device provided above the refueling area, A hose that is wound and unwound by a nozzle lifting device, an oil supply nozzle connected to the tip of the hose,
A handy switch box provided with a plurality of switches in the vicinity of the refueling nozzle, a vapor concentration measuring means for measuring the vapor concentration in a vehicle fuel tank, a refueling amount indicator, an oil type determination function, and an automatic full tank. A refueling control device having a refueling function is provided, and a switch for outputting a lowering command when the nozzle is in the rising position and a rising command when the nozzle is in the lowering position, The oil type determination function is disabled before starting, and the switch that resets the oil supply amount indicator when pressed while refueling is stopped and the automatic full tank refueling function is canceled when pressed before refueling is started. Since it is equipped with a switch that commands resuming refueling when pressed after full tank refueling, it is not only possible to select the oil type determination function or automatic full tank refueling function with a few switches. , Fueling before, and it is possible to prevent the command dangerous operation switches to functions required at that time between refueling stops.

[Brief description of drawings]

FIG. 1 is a diagram showing an outline of a suspension type oil supply device of the present invention.

FIG. 2 is a diagram showing an oil supply system of the suspension type oil supply apparatus of the present invention.

FIG. 3 is a cross-sectional view showing an embodiment of an oil supply nozzle having an automatic full tank oil supply function used in the same apparatus.

FIG. 4 is an upper sectional view showing an embodiment of an oil supply nozzle provided with an automatic full tank oil supply mechanism used in the same apparatus.

FIG. 5 is a diagram showing an embodiment of a hand switch.

FIG. 6 is a block diagram showing an embodiment of control of the same apparatus.

FIG. 7 is a flowchart showing an operation of the same apparatus.

[Explanation of symbols]

 1 Nozzle Lifting Device 2 Canopy 3 Machine Room 5 Refueling Hose 8 Refueling Nozzle 11 Vapor Concentration Measuring Means 12 Oil Storage Tank 60 Indicator 70 Hand Switch Box 80 Control Device

Claims (3)

[Claims] 1. A pump for feeding fuel oil from an oil storage tank, a flow meter for measuring the amount of refueling, a nozzle elevating device provided above an oiling area, and a hose wound and delivered by the nozzle elevating device. A refueling nozzle connected to the tip of the hose, a hand-held switch box provided in the vicinity of the refueling nozzle and provided with a plurality of switches, and a vapor concentration measuring means for measuring a vapor concentration in an automobile fuel tank, A refueling amount display, a refueling control device having an oil type determination function and an automatic full tank refueling function are provided, and the hand switch box is provided with a descending command when the nozzle is in the ascending position, and a descending command. When it is in the position, a switch that outputs a rise command and the oil type determination function are disabled before starting refueling, and when pressed while refueling is stopped, the refueling amount indicator is reset. Switch and, when it is pressed before the start refueling cancel the automatic fill-up fueling function, also suspended fueling apparatus and a switch for commanding fueling resumed when pressed after the automatic fill-up fueling. 2. The suspension refueling device according to claim 1, wherein the refueling control device has a preset refueling function, and the hand switch box is provided with a switch for presetting a refueling amount when the switch box is pressed before starting refueling. . 3. The suspension refueling device according to claim 1, wherein the function of each switch of the hand switch box is disabled during refueling.