JPH0353198B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a suspended oil supply device.

[Prior art] As shown in Fig. 1, a suspended type oil supply device has the following features:
A piping 2 communicating with the oil storage tank 1 via a pump 3 and a flow meter 4 is raised above the refueling point, and a refueling hose 8 having a nozzle valve 7 at its lower end is connected to the piping 2 via a hose lifting device 9. A lift switch 11 provided near the nozzle valve 7 operates the hose lift device 9 to raise and lower the refueling hose.

This hose lift switch 11 is the nozzle valve 7
When operated while in the refueling standby position, the hose 8 is automatically lowered to the maximum lowered position, the refueling amount indicator 14 is reset, and the pump 3 is driven.

After refueling, when the hose lift switch 11 is operated at the maximum lowered position of the hose 8, the pump 3 is stopped and the hose 8 is raised to the refueling standby position.

[Problem to be solved by the invention]

Conventionally, when the lift switch 11 is operated, the refueling hose 8 is automatically extended to the maximum length stipulated by the Fire Service Act, in order to expand the refueling area, that is, to the length that the nozzle valve is in contact with the ground. It was being rolled out.

Therefore, if the nozzle valve 7 is held incorrectly by hand while the nozzle valve 7 is being lowered, the nozzle valve 7 will hit the ground, which may damage the nozzle and the electronic device 13 attached thereto.

In addition, when refueling, the nozzle valve 7 must be lifted up to the refueling port position, and the extra weight of the hose may accumulate on the nozzle valve 7, resulting in poor operability.
Particularly when refueling a motorcycle, since there is no support part for the nozzle valve 7 at the refueling port, most of the weight of the refueling hose and nozzle valve is placed on the hand, making it difficult to operate.

Furthermore, if you accidentally let go of the nozzle valve 7 while refueling, there is a risk that the nozzle or the electronic device 13 attached to it may hit the ground and be damaged, and the amount of the refueling hose that comes out is large. However, there were drawbacks such as the long time it took to start refueling.

The purpose of the present invention is to eliminate the disadvantages of the conventional example,
While the conventional refueling area is secured, the refueling hose temporarily stops feeding when the nozzle valve is close to the ground, and even if you accidentally hold the nozzle valve with your hand, the nozzle valve or the attached card reader This prevents damage to electronic devices such as preset switches by hitting them on the ground, and reduces the weight on the hand holding the nozzle valve when refueling, making refueling easier to operate and reducing the amount of time required to start refueling. An object of the present invention is to provide a suspended type oil supply device.

[Means to solve the problem]

In order to achieve the above object, the present invention stands up a pipe communicating with an oil storage tank via a pump and a flow meter above a refueling point, and connects a refueling hose having a nozzle valve at the tip to the pipe through a hose lifting device. A flow rate pulse transmitter as a flow rate measuring means is attached to the flowmeter, and a nozzle valve position detection device is connected to the hose lifting device, and these flow rate pulse transmitters, nozzle valve position detection device, and a refueling standby device are connected to the flowmeter. A control means is provided which receives an output signal from a hose lift switch installed near the nozzle at the nozzle position and controls the drive motor of the hose lift device, the oil supply amount indicator, and the pump installed in the piping, and the control means is in the standby position for refueling. When the nozzle valve reaches a position close to the ground surface while descending from the position, it stops descending, resets the display meter, drives the pump, and checks the presence or absence of a refueling pulse from the flow rate pulse transmitter at the stop position, When the refueling pulse is not being transmitted, the hose is lowered to the maximum lowering position by the operation signal of the switch, and after the refueling pulse is being transmitted, the pump is stopped by the operation signal of the switch and the hose is moved to the refueling standby position. The gist of this is that it can be rolled up.

〔Example〕

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

Fig. 1 is a partially cutaway side view of the suspension type oil supply system of the present invention, and Fig. 2 is a block circuit diagram of the same.
A refueling pump 3 and a flow meter 4 are sequentially installed in the middle of a pipe 2 that is erected to communicate with an underground oil storage tank 1, a motor 5 is connected to the refueling pump 3, and a flow rate pulse transmitter 6 is attached to the flow meter 4.

A refueling hose 8 having a nozzle valve 7 at its tip is connected to the piping 2 via a hose lifting device 9 suspended from a canopy 10.

Attached to the nozzle valve 7 are an electronic device 13 equipped with a pull-string lift switch 11 for the refueling hose 8, a card reader, a preset switch, and the like.

In addition, numeral 14 in the figure is a refueling amount indicator installed at an easily visible position such as on the wall of the refueling station.

As shown in FIG. 2, the position detection output signal A of the nozzle valve position detection device 15 connected to the hose lifting device 9 is introduced into the control means 16 consisting of a sequencer or a microcomputer using an IC circuit. An output signal B for normal rotation, reverse rotation, and stop is introduced from 16 to the drive motor 17 of the hose lifting device 9.

The position detection output signal A emitted from the nozzle valve position detection device 15 indicates the hose raised position where the nozzle valve 7 is in a refueling standby state where refueling is not possible;
(hereinafter referred to as X position) the hose lowered position where the nozzle valve 7 is close to the ground surface and refueling is possible;
(hereinafter referred to as Y position) when the nozzle valve 7 is on the ground surface,
It includes detection signals for the three positions of XYZ, including the maximum lowered position of the hose (hereinafter referred to as the Z position), which is the state where the hose has descended to a level above the level between the lifting device 9 and can be refueled.

The on/off output signal C from the control means 16 is introduced into the motor 5, the reset signal F from the control means 16 is introduced into the counting circuit 18, and the output signal G from the lift switch 11 is introduced into the control means 16. ,
Further, the flow rate signal D from the flow rate pulse generator 6 is introduced into the counting circuit 18, and the count signal E of the counting circuit 18,
E' is introduced into the display meter 14 and the control means 16, respectively.

Next, usage and operation will be explained.

FIG. 3 is a flowchart showing the operation of the block circuit of FIG.
Enter step 6 (stepper).

If the nozzle valve 7 is currently at the ), an output signal B indicating normal rotation is sent to cause the motor 17 to rotate in the normal direction, the hose reel of the hose lifting device 9 connected thereto rotates in the normal direction, and the refueling hose 8 is lowered (Step Pro).

When the nozzle valve 7 comes to the Y position (step), the nozzle valve position detection device 15 detects this and sends an output signal A to the control means 16.

As a result, a reset signal F is sent from the control means 16 to the oil quantity indicator 14 via the counting circuit 18, the oil quantity indicator 14 is reset, and an output signal C indicating ON is sent to the motor 5. Then, the motor 5 rotates and the pump 3 is driven (step) to become ready for refueling. At the same time, the control means 16 sends an output signal B indicating a stop to the motor 1.
7, the rotation of the motor 17 is stopped, and the rotation of the hose reel of the hose lifting device 9 is also stopped.
As a result, the hose 8 stops descending, and the nozzle valve 7 stops at the Y position (step HO).

However, if the length of the hose 8 is insufficient for refueling by simply lowering the refueling hose 8 to the Y position, then if you pull the lift switch 11 again (stepper), the nozzle valve position will change. A signal indicating the Y position from the detection device 15 is sent to the control means 16.
has been input and has not yet been refueled (step, step, step).
The control means 16 lowers the refueling hose 8 again (stipple).

When the hose 8 has descended to the Z position (step wo), the nozzle position detection device 15 detects this and sends an output signal A to the control means 16, and as a result, the nozzle valve 7 is stopped at the Y position. Similarly, the nozzle valve 7 is stopped at the Z position (step HO).

When the nozzle valve 7 is inserted into the fuel filler port of the automobile and opened, the oil sucked up from the underground oil storage tank 1 by the pump 3 and motor 5 is supplied from the nozzle valve 7 via the pipe 2 and the fuel supply hose 8.

The flow rate measured by the flowmeter 4 is sent from the flow rate pulse transmitter 6 as a flow rate signal D to a counting circuit 18 and counted there, and the counting circuit 18 sends a count signal E to the oil supply amount display meter 14 and the control means 16. It will be done.

The oil supply amount display meter 14 displays the relevant oil supply amount.

Note that the count signal E' input to the control means 16 is a signal for determining whether or not refueling has been performed.

When refueling is completed, the lift switch 11 is pulled (stepper), and an output signal G is input from the switch 11 to the control means 16. At this time, since a signal indicating the Z position is inputted from the nozzle valve position detection device 15, the control means 16 judges this (Step 1, F), and outputs an output signal C indicating OFF to the motor 5. The motor 5 and pump 3 are stopped (step).

Further, since an output signal B indicating a reverse rotation is sent to the motor 17 to reverse the motor 17, the hose reel of the hose lifting device 9 connected thereto is reversed and the refueling hose 8 is raised (stepper).

When the nozzle valve 7 reaches the X position (step), the nozzle valve position detection device 15 detects this and sends an output signal A to the control means 16, which causes the control means 16 to send an output signal B indicating a stop. is sent to the motor 17, the rotation of the motor 17 is stopped, and the rotation of the hose reel of the hose lifting device 9 is also stopped. As a result, the hose 8 stops rising, and the nozzle valve 7 stops at the X position (step hop). ), prepare for the next refueling.

Incidentally, in reality, there are few cases in which refueling must be performed at the Z position; in other words, there are many cases in which an automobile or the like stops directly below the hose lifting device 9 and can be refueled at the Y position.

When refueling is performed at the Y position, when the lift switch 11 is pulled (stepper) after refueling is completed, a signal indicating the Y position is input from the nozzle valve position detection device 15 at this time, so the control means 16 (step, f), and control means 1
Since the counting signal E' is inputted to the motor 6 from the counting circuit 18, it is determined that refueling has been completed (step), and an output signal C indicating OFF is sent from the control means 16 to the motor 5, and the motor 5 and the pump 3 stops (Steppuchi).

Further, the control means 16 sends an output signal B indicating a reverse rotation to the motor 17, causing the motor to reverse.
The hose reel of the hose lifting device 9 connected thereto is reversed, and the refueling hose 8 is raised (step-up).

When the nozzle valve 7 reaches the X position (Step Nu), the nozzle valve position detection device 15 detects this and sends an output signal A to the control means 16, which causes the control means 16 to output an output signal B indicating a stop. is sent to the motor 17, the rotation of the motor 17 is stopped, and the rotation of the hose reel of the hose lifting device 9 is also stopped. As a result, the hose 8 stops rising, and the nozzle valve 7 stops at the X position (step hop). ), prepare for the next refueling.

〔Effect of the invention〕

As described above, the suspension type refueling device of the present invention has the piping that communicates with the oil storage tank via the pump and flow meter raised above the refueling point, and the refueling hose having the nozzle valve at the lower end connected to the hose lifting device. In the suspended type refueling device connected to the above piping via the hose, the lowered position of the hose that allows refueling is secured between the raised position of the hose and the maximum lowered position of the hose, so even if you forget to hold the nozzle valve while descending, the nozzle valve will be removed. This prevents damage to electronic equipment such as the card reader and preset switch attached to it by hitting it against the ground, and the weight added to the hand holding the nozzle valve when refueling is reduced, making refueling easier to operate. Furthermore, since the amount of hose to be fed out is small, the time required to start refueling can be shortened.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view of the suspension type oil supply system of the present invention, FIG. 2 is a block circuit diagram of the same, and FIG. 3 is a flowchart showing the operation of the block circuit diagram of FIG. 2. 1... Oil storage tank, 2... Piping, 3... Pump, 4... Flow meter, 5... Motor, 6... Flow rate pulse transmitter, 7... Nozzle valve, 8... Refueling hose, 9... Hose lifting device, 10... Canopy, 11... Lifting switch, 13... Electronic equipment, 14... Oil supply amount display meter, 15... Nozzle valve position detection device, 16... Control means, 17... Motor, 18 ...Counting circuit, X...Hose up position, Y...Hose down position, Z...Hose maximum down position.

Claims (1)

[Claims] 1. Raise the piping that communicates with the oil storage tank via the pump and flowmeter above the refueling point, connect the refueling hose with a nozzle valve at the tip to the piping via the hose lifting device, and measure the flow rate with the flowmeter. A flow rate pulse transmitter is installed as a means, and a nozzle valve position detection device is connected to the hose lifting device.
These flow rate pulse transmitters, nozzle valve position detection devices, and hose lift switches installed near the nozzle in the refueling standby position receive output signals from the drive motor for the hose lift position, the refueling amount indicator, and the hose installed in the piping. A control means is provided to control the pump.
The control means stops the descent when the nozzle valve reaches a position close to the ground surface while descending from the refueling standby position, resets the display meter, drives the pump, and at the stop position, refueling pulses from the flow rate pulse generator are sent. The hose is lowered to the maximum lowering position by the operation signal of the switch when the refueling pulse is not being sent, and after the refueling pulse is sent, the pump is stopped by the operation signal of the switch. A suspended type refueling device characterized in that the hose is wound up to a refueling standby position.