JPH0130717B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a refueling device for refueling gasoline or the like used at a refueling station for automobiles or the like.

[Conventional technology]

A refueling machine used in such a refueling system is provided with a nozzle hook on the side surface for hooking a nozzle valve, and the nozzle hook is provided with a nozzle switch that opens and closes by hooking and removing the nozzle valve.

The nozzle switch detects the start and end of the refueling operation, returns the indicator to zero, and controls the drive of the pump motor. Such nozzle switches include those of a link mechanism type in which an operator protrudes from the nozzle hook, and those of a non-connection type operated by magnetic force or the like.

By the way, as shown in Japanese Utility Model Publication No. 49-23307, a refueling device is sometimes provided with two refueling hoses to enable simultaneous refueling, and in such a refueling device, the nozzle valve of each hose is If the nozzle is set incorrectly, the nozzle switch will malfunction, resulting in erroneous control or incorrect display, so it is necessary to prevent this incorrect setting.

In this Japanese Utility Model Publication No. 49-23307, the hanging portions of the nozzle valves are each formed in an irregular shape, and the nozzle hooks are shaped so that only the nozzle valves that fit the nozzle hooks are hung thereon, thereby preventing the misfitting.

[Problem to be solved by the invention]

However, in the method disclosed in Japanese Utility Model Publication No. 49-23307, which prevents mis-installation by specifying the shape of the nozzle valve and nozzle hook, no other nozzle valve can be attached to that nozzle hook, so if the nozzle hook is incorrectly attached, it is difficult to accidentally insert it. If you release the nozzle valve, the nozzle valve may fall, causing injury or damage to the nozzle valve.

The purpose of the present invention is to eliminate the disadvantages of the conventional example,
To provide a refueling device capable of preventing erroneous control of refueling operation due to incorrect hooking of a nozzle valve even after the nozzle valve is hooked to the nozzle hook.

[Means for Solving the Problems] In order to achieve the above object, the present invention has a plurality of oil supply systems each including a pump, a flow meter, a oil supply hose with a nozzle valve, and a fuel supply amount display, and further includes a plurality of nozzle hooks. In a refueling system in which multiple refueling systems installed adjacent to each other can refuel at the same time, each nozzle valve is provided with a specific detected part at a different position relative to each other, and each nozzle valve has a pair of nozzle hanging parts with the above-mentioned parts. A first detection section that detects a specific detected part of the nozzle valve and a second detection section that operates in common with all the nozzle valves are provided, and a notification means is provided that indicates that the nozzle is incorrectly connected, and the first and second detection sections are provided. The refueling pump driving motor is controlled to be driven and stopped by the same output of the detection part, and the second detection part detects the nozzle valve, and when the first detection part does not detect this, the notification means is activated. The gist is that a refueling machine control means is provided.

[Effect]

According to the present invention, when the nozzle valve is hooked to the correct nozzle hook, there are outputs from both the first detection section and the second detection section, so the refueling machine control circuit finishes the refueling operation with normal operation. let

In addition, if the nozzle valve is hooked to the wrong nozzle hook, there is an output from the second detection section but no output from the first detection section, so the fuel dispenser control circuit controls the fuel dispenser so as not to finish refueling. do.

Furthermore, this incorrect setting is notified by the notification means so that the operator can immediately know about it.

〔Example〕

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

FIG. 1 is a perspective view of a refueling machine using the present invention, which has a plurality of refueling systems for simultaneous refueling.
are formed, and nozzle valves 4, 4' provided at the ends of the oil supply hoses 3, 3' are hung thereon. Furthermore, as shown in FIG. 2, the nozzle valves 4, 4' are connected to oil supply pipes 13, 13', which communicate with an underground tank (not shown), respectively, via oil supply hoses 3, 3'. 13, 13', oil supply pumps 14, 14' and flow meters 15,
15', respectively, flow rate pulse transmitters 16, 16' are attached to the flowmeters 15, 15', respectively, and drive motors 17, 16' are attached to the oil supply pumps 14, 14', respectively.
17'.

At the front of the refueling machine 1, a refueling amount display meter 5 corresponding to the nozzle valve 4 and a refueling amount display meter 5' corresponding to the nozzle valve 4' are provided, and a buzzer 6 is installed on the upper surface.

The nozzle hooks 2 and 2' are each provided with a nozzle switch that is operated by turning on and off the nozzle valves 4 and 4'. To explain this nozzle switch with reference to FIG. A part of the nozzle valve 4, for example, the trigger frame 4a, is provided with two permanent magnets 7 and 8 spaced apart from each other. Reed switches 9 and 10, which are activated by the approach of magnets 7 and 8, are installed at positions corresponding to .

Figure b shows another nozzle valve 4' hanging on the regular nozzle hook 2', and as in a above, two permanent magnets are placed at a distance on the trigger frame 4'a of the nozzle valve 4'. 7' and 8 are provided, and reed switches 9' and 10' that are activated by the approach of these permanent magnets 7' and 8' are provided on the nozzle hook 2' side.

As shown in the figure, the magnets 7 and 7' and the reed switches 9 and 9' are placed in a common position in correspondence with the nozzle valve and the nozzle hook, while the magnets 8 and 8' and the reed switches 10 and 10' are placed in a common position. , the magnets 8 and 8' serve as a specific detected part, and the reed switches 10 and 10' serve as the first part to detect this specific detected part.
They were all arranged at different positions so that they would serve as the detection parts for each sensor.

These reed switches 9, 9' and 10, 1
0' are nozzle switch circuits 11 and 11, respectively, which will be described later.
11' and 12, 12'.

The output signal A of the nozzle switch circuit 11 is passed through an AND circuit 18 and an exclusive OR circuit 19.
and the output signal B of the nozzle switch circuit 12
is also introduced into the AND circuit 18 and the exclusive OR circuit 19.

The output signal C of the AND circuit 18 is introduced into the control circuit 20, the output signal D from the control circuit 20 is introduced into the drive motor 17 via the motor control circuit 21, and the reset signal E from the same circuit 20 is introduced into the counting circuit 22. to be introduced.

On the other hand, the flow rate signal F of the flow rate pulse generator 16 is introduced into the counting circuit 22, and the output signal G of the counting circuit 22 is
is introduced into the display meter 5 via the display meter drive circuit 23.

The output signal H of the exclusive OR circuit 19 is introduced into the buzzer 6.

The output signal A' of the nozzle switch circuit 11' is passed to the AND circuit 18' and the exclusive OR circuit 1.
9', and the output signal B' of the nozzle switch circuit 12' is also introduced to the AND circuit 18' and the exclusive OR circuit 19'.

The output signal C' of the AND circuit 18' is transferred to the control circuit 2.
0' and the output signal from the control circuit 20'.
D' is introduced into the drive motor 17' via the motor control circuit 21', and a reset signal E' from the same circuit 20' is introduced into the counting circuit 22'.

On the other hand, the flow rate signal F' from the flow rate pulse generator 16' is introduced into the counting circuit 22', and the output signal G' from the counting circuit 22' is sent to the display meter 5' via the display meter drive circuit 23'.
The output signal H' of the exclusive OR circuit 19' is introduced into the buzzer 6.

Next, to explain the usage and operation, first, assuming that the correct nozzle valves 4 and 4' are attached to the nozzle hooks 2 and 2', respectively, and when the nozzle valve 4 is removed from the nozzle hook 2, the permanent magnets 7 and 8 will be reeded. Since the reed switches 9 and 10 move away from the switches 9 and 10, both reed switches 9 and 10 are closed, and the nozzle switch circuits 11 and 12 send signals A and B when the nozzle is removed.
is issued to the AND circuit 18 and the exclusive OR circuit 19.

Since the exclusive OR circuit 19 receives both output signals A and B, it does not output any output signal.

On the other hand, the AND circuit 18 receives the output signals A and B, and issues an output signal C to the control circuit 20. Upon receiving this signal, the control circuit 20 issues a reset signal E to the counting circuit 22, and a reset signal E to the motor control circuit 2. A motor drive signal D is generated, and the counting circuit 22 outputs the above signal E.
In response to this, the display returns to zero, and the display meter 5 also displays zero. On the other hand, the motor control circuit 21 receives the signal D, starts the motor 17, and drives the oil supply pump 14.

When the nozzle valve 4 is opened to supply oil in this state, the pulse transmitter 1 is activated as the flow meter 15 rotates.
6, the flow rate signal F is introduced into the counting circuit 22, where it is counted and stored, and an output signal G is sent from the counting circuit 22 to the display meter 5 via the display meter drive circuit 23.
is introduced, and the display meter 5 sequentially displays the relevant oil supply amount.

When refueling is finished and the nozzle valve 4 is hung on the nozzle hook 2, the permanent magnets 7 and 8 are connected to the reed switch 9,
10, reed switches 9 and 10 are both open, and signals A and B multiplied by the nozzle from nozzle valve switch circuits 11 and 12 are transmitted to AND circuit 18 and exclusive OR circuit 19, and are controlled by AND circuit 18. The signal is transmitted to the circuit 20, a motor stop signal is issued from the control circuit 20 to the motor control circuit 21, and the motor 17 is stopped.

For example, if another nozzle valve 4' is also in the middle of being used after being removed from the nozzle hook 2', and the nozzle valve 4 that has been refueled is accidentally hooked onto the nozzle hook 2' on the nozzle valve 4' side, The permanent magnet 7 of the nozzle valve 4 comes close to the reed switch 9' in the nozzle hook 2', and this reed switch 9' opens and the nozzle hook signal A' is output from the nozzle switch circuit 11'. 8 is not close to the reed switch 10', the reed switch 10' does not open, and when the nozzle application signal B' is not output from the nozzle switch circuit 12', the exclusive OR circuit 19' outputs an output to the buzzer 6. signal
H' is emitted, and the buzzer 6 receives this signal H' and sounds.
Alert.

Furthermore, even if the nozzle valve 4' is accidentally applied to the nozzle hook 2 on the nozzle valve 4 side, the exclusive OR circuit 19 will receive only the output signal B of the nozzle switch circuit 12, as described above, and the output signal Emit H to buzzer 6 and buzzer 6 will sound. In this case, if you remove the nozzle valve and hang it on the correct nozzle hook, the buzzer will stop and the motor will also stop.

The operation of refueling after removing the nozzle valve 4' from the regular nozzle hook 2' is the same as when refueling after removing the nozzle valve 4 from the nozzle hook 2, and in the drawing, "'" is added. The only difference is that elements are used, so the explanation will be omitted.

Next, FIG. 4 is a longitudinal sectional side view of the nozzle valves 4, 4' and nozzle hooks 2, 2' showing a second embodiment of the device of the present invention, and FIG. , b is a state in which the nozzle valve 4' is hooked to the correct nozzle hook 2', and this embodiment uses a photo switch instead of the reed switch operated in the vicinity of the permanent magnet of the first embodiment. .

On the nozzle hook 2 side, the outgoing fiber 24a,
One end of each of the returning fiber 24b, the outgoing fiber 25a, and the returning fiber 25b is provided so as to face the nozzle portion 4b of the nozzle valve 4, which is hung on the nozzle hook.
Light sources 26 and 27 are installed at the other ends of the fibers 24b and 25a, respectively, and light emitted from the light sources 26 and 27 is installed at the other ends of the fibers 24b and 25b.
Photoreceptors 28 and 29 are provided to receive the reflected light.

Incidentally, reflective members 30 and 31 are provided on the surface of the nozzle portion 4b at locations facing one ends of the fibers 24a, 24b and 25a, 25b.

The outgoing fiber 24' is placed on the nozzle hook 2' side.
a, the return fiber 24'b, the outbound fiber 25'a, and the return fiber 25'b are each provided so as to face the nozzle portion 4'b of the nozzle valve 4' with one end thereof hung on the nozzle hook. , a light source 26' at the other end of the fibers 24'a, 25'a,
27' respectively, and the fiber 24'
At the other ends of b and 25'b, there are provided photoreceptors 28' and 29' for receiving the light emitted from the light sources 26' and 27' and reflected by the nozzle portion 4'b. Reflection members 30' and 31' are provided on the surface of the nozzle portion 4'b.

Phototransistors are used for these photoreceptors 28, 28' and 29, 29'.
8' constitute a part of the nozzle switch circuits 11, 11', respectively, and the photoreceptors 29, 29' constitute a part of the nozzle switch circuits 12, 12', respectively.

Furthermore, the reflecting members 30 and 3 of the nozzle part 4b of the nozzle valve 4 and the nozzle part 4'b of the nozzle valve 4'
0' is the same position, and the fibers 24a, 24b, 24'a, 24'b of the nozzle hooks 2 and 2' are also at the same position, but the reflecting members 31 and 31' and the fibers 25a, 25b and 25'a, 25'b are provided at different positions from each other.

This second embodiment is the same as the first embodiment in that the circuit shown in FIG. 2 is used.

Next, the operation and usage will be explained. First, if the nozzle bulb 4 is removed from the nozzle hook 2, the light emitted from the light sources 26 and 27 will not be reflected because there are no reflecting members 30 and 31 of the nozzle part 4b, and will not be reflected to the light receiving body 2. ，
29 does not receive light, the phototransistor is turned off, and as a result, the nozzle switch circuits 11 and 12 introduce signals A and B from which the nozzles are removed to the AND circuit 18 and the exclusive OR circuit 19. Thereafter, refueling is carried out in the same manner as in the first embodiment, and the display meter 5 displays the amount of refueling.

When refueling is finished and the nozzle valve 4 is hung on the nozzle hook 2, the light emitted from the light sources 26 and 27 reaches the nozzle part 4.
It is reflected by the reflecting members 30 and 31 of b, and the photoreceptor 2
In response to this reflected light, the phototransistors 8 and 29 are turned on, the nozzle switch circuits 11 and 12 output signals A and B for applying the nozzles, and the motor 17 is stopped.

On the other hand, if the nozzle bulb 4 is mistakenly hung on the nozzle hook 2' on the side of the nozzle bulb 4', the photoreceptor 28' receives the light from the light source 26' reflected by the reflecting member 30 and takes a photo. The transistor is turned on, while the light from the light source 27' enters the fiber 2.
Since there is no reflective member at the ends of 5'a and 25'b, the light does not reach the photoreceptor 29'.

As a result, the nozzle switch circuit 11 generates the nozzle signal A, but the nozzle switch circuit 12 does not generate the nozzle signal B, and the exclusive OR circuit 19 outputs the nozzle signal H.
is sent to buzzer 6, and buzzer 6 sounds.

Even if the nozzle valve 4' is mistakenly hung on the nozzle hook 2 on the side of the nozzle valve 4, the buzzer 6 will sound in a similar manner.

In the case of the second embodiment using this photo switch, compared to the case of the first embodiment using a reed switch, the switch can be configured completely without contact, and the durability and reliability can be further improved. It is possible.

〔Effect of the invention〕

As described above, the refueling device of the present invention has a plurality of refueling systems each including a pump, a flow meter, a refueling hose with a nozzle valve, and a refueling amount display meter, and further includes a plurality of adjacent nozzle hooks. In a lubrication system where two lubrication systems can supply lubrication at the same time, it is possible to prevent erroneous control due to incorrectly connecting the nozzle valve to the nozzle hook, and since this can be done after the nozzle valve is hooked to the nozzle hook, it is possible to prevent the nozzle valve from being incorrectly connected. This can be done safely in a stable condition without any risk of falling.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a refueling machine using the device of the present invention;
FIG. 2 is a block circuit diagram showing the embodiment, and FIG. 3 is a longitudinal cross-sectional side view of the nozzle hanging part showing the first embodiment.
FIG. 4 is a longitudinal cross-sectional side view of a nozzle hanging portion showing a second embodiment. 1... Refueling machine, 2, 2'... Nozzle hook, 3,
3'...Refueling hose, 4,4'...Nozzle valve,
4a, 4'a...Trigger frame, 4b, 4'b...
...Nozzle part, 5, 5'...Oil supply amount indicator, 6...
Buzzer, 7, 7', 8, 8'...Permanent magnet, 9,
9', 10, 10'... Reed switch, 11, 1
1', 12, 12'... Nozzle switch circuit, 1
3, 13'... Oil supply pipe, 14, 14'... Oil supply pump, 15, 15'... Flow meter, 16, 16'... Pulse transmitter, 17, 17'... Drive motor, 1
8,18'...AND circuit, 19,19'...Exclusive OR circuit, 20,20'...Control circuit, 21,21'...Motor control circuit, 22,
22'...Counting circuit, 23, 23'...Display meter drive circuit, 24a, 24'a, 25a, 25'a...Outbound fiber, 24b, 24'b, 25b, 2
5'b...Return fiber, 26, 26', 2
7, 27'...Light source, 28, 28', 29, 29'
...Photoreceptor, 30, 30', 31, 31'...Reflection member.

Claims (1)

[Claims] 1. In a refueling device that has multiple refueling systems consisting of a pump, a flow meter, a refueling hose with a nozzle valve, and a refueling amount display meter, and further has multiple nozzle hooks adjacent to each other, the multiple refueling systems can refuel simultaneously, Each nozzle valve is provided with a specific detected part at a different mutual position, and a first detection part for detecting the specific detected part of each nozzle valve is provided at a nozzle hanging part that is paired with each of these nozzle valves. A second detection unit is provided that operates in common with the nozzle valves,
A notification means is provided to notify that the nozzle is incorrectly connected, and the fuel pump driving motor is controlled to be driven and stopped by the same output of the first and second detection parts, and the second detection part detects the nozzle valve. A refueling device characterized in that a refueling device is provided with a refueling machine control means for activating a notification means when the first detection section does not detect this.