JP3890588B2 - Lubrication device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fueling device having a function of shutting off power supply to a fueling mechanism or a control device when an impact is caused by an earthquake or a collision of an automobile.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a fueling device installed at a gas station, when an impact is applied due to an earthquake or an automobile collision, the power supply is cut off for safety. For example, Japanese Patent Application Laid-Open No. 8-258900 discloses a vibration-sensing power shut-off device for an oil supply device in which a vibration responsive switch and a relay unit are integrally housed in an explosion-proof box. Such a vibration-sensing power shut-off device for a fueling device has an upper case that houses a control device for fueling control and a fueling data display above a lower case in which a fueling mechanism such as a fueling pump and a flow meter is housed. An explosion-proof box provided in the upper case and housing the vibration responsive switch is directly attached to the support via a bracket.
[0003]
[Problems to be solved by the invention]
The conventional vibration responsive switch is housed in a flameproof explosion-proof case, and this flameproof explosion-proof case is directly attached to the support via a bracket. Therefore, the vibration of a large automobile traveling on the road is removed. In addition, it is difficult to distinguish from vibration caused by an impact caused by an earthquake or automobile collision, and there is a risk of malfunction.
[0004]
The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an oil supply apparatus that can prevent malfunction and can easily attach a vibration sensor.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, in the invention described in claim 1, an oil supply mechanism having an oil supply pump driven by a pump motor operated by electric power from the outside, a lower case housing the oil supply mechanism, in the oil supply device comprising an upper case for accommodating the upwardly closed structure of the lower case attached via a strut with controller and fueling data display for fueling control for controlling the driving of the pump motor, wherein the upper case , the side plates are provided on the left and right sides of the upper case body formed with an opening for attaching the oil supply data indicator on the front side is formed in a frame shape, the bottom plate is provided in the lower bottom, the right and left of the post and separately through the substrate provided vertically between the side plates of the sides, the wire spherical body having conductivity in the case is connected to the first contact in order to detect the vibration Suspended rotatably, on the inner face of the case attached to the vibration sensor second contacts are provided with contact the axis of the casing is vertical when the spherical body is swung, the control The apparatus determines that the on / off vibration signal received from the vibration sensor has continued for a certain period of time and outputs a stop signal for power supply to the pump motor to the motor control switch and receives from the vibration sensor. In response to the vibration signal, a stop signal for supplying power to the control device itself is output to the relay unit and received from the vibration sensor. When the power supply to the pump motor is stopped, It is characterized by displaying that it has stopped . Since the vibration sensor is attached to the upper case via a substrate provided separately from the support column, malfunction can be prevented and the vibration sensor can be easily attached. In addition, the power supplied to the control device itself can be stopped, rolls such as earthquakes can be detected, and it is determined that the vibration sensor ON / OFF vibration signal continues for a certain time or more. It is possible to distinguish a car collision from other vibrations, and it is possible to know that the supply of electric power has been stopped due to an earthquake or the like by the display of the oil supply data display.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be specifically described with reference to an illustrated embodiment. FIG. 1 to FIG. 5 are views for explaining a fueling device according to a first embodiment of the present invention, FIG. 1 is a block diagram for explaining the configuration of the fueling device, FIG. 2 is a front view of the fueling device, and FIG. FIG. 4 is a block diagram illustrating the configuration of the power shut-off device, and FIG. 5 is a cross-sectional view of the vibration sensor.
[0012]
In these drawings, the oil supply device 10 according to the first embodiment of the present invention is a ground-installed device for supplying any kind of oil such as regular gasoline, high-octane gasoline, and light oil. An oil supply pump 13 driven by a pump motor 12 constituting an oil supply mechanism of each oil type, and a flow meter 15 having a flow rate pulse transmitter 14 are sequentially connected to an oil supply pipe communicating with an underground tank. An oil supply hose 18 having an oil supply nozzle 17 at the tip is connected through a pipe 16 communicating with the outlet. The main body case 11 includes a lower case 20 that houses an oil supply mechanism that is disposed above the base plate 37, an upper case 21 that is disposed above the lower case 20, support columns 22 a and 22 b that are provided on the left and right of the upper case 21, It comprises a top case 23 and the like that suspends an oil supply hose 18 provided between the upper ends of the columns 22a and 22b. A space is formed between the upper case 21 and the top case 23, and an illumination case 24 for illuminating the lower part is provided at the bottom of the top case 23. The oil supply nozzle 18 is hung on a nozzle hook 19 provided on the front side of the lower case 20. A nozzle switch 38 is provided in the vicinity of the nozzle hook 19.
[0013]
On the front side of the upper case 21, an oil supply data indicator 26 is provided in the center, a data input / output device 25 is provided on the right side, and a video screen 27 is provided on the left side. The refueling data display 26 includes an amount display unit 26a for displaying a refueling fee, a refueling amount display unit 26b for displaying a refueling amount provided at the lower part thereof, and a unit price display unit 26c for displaying a unit price provided therebelow. It consists of and. The data input / output device 25 includes a card reader 25a for reading various cards, a keyboard 25b for data input, a data display unit 25c for displaying data input by the keyboard 25b, a printer 25d for issuing slips, and the like. It is composed of The video screen 27 displays campaign information, traffic information, or advertising information during refueling.
[0014]
Further, the main body case 11 is provided with a control device 30 for controlling each part, and the motor control switch 12a provided in the pump motor 12 is turned on by the oil supply request signal from the nozzle switch 38 to power the pump motor 12. The power of the line 32 is supplied, and the flow rate pulse signal output from the flow rate pulse transmitter 14 is integrated by refueling and displayed as a refueling amount on the refueling data display 26, and the motor control switch is received by the refueling stop signal from the nozzle switch 38. 12a is turned off, the power to the pump motor 12 is cut off, data is transmitted to and received from the data input / output device 25, and the display on the video screen 27 is controlled. Further, the control device 30 receives an on / off vibration signal from a vibration sensor 40, which will be described in detail later, and determines that this is an earthquake when this on / off continues for a certain time, for example, 4 seconds or more. A power supply stop signal is output to the motor control switch 12a and the relay unit 34. Further, the control device 30 is provided with a battery or the like so that when the supply of power is stopped, the fuel supply data display 26 can display that the fuel supply has stopped.
[0015]
Further, the main body case 11 is provided with a power shut-off device 28 as a function of shutting off the power by detecting shaking such as an earthquake. In this power shutoff device 28, a power supply line 31 that supplies driving power to the control device 30 is provided with a relay unit 34 and an original power switch 33 to control the on / off vibration signal detected by the vibration sensor 40. The device 30 determines and outputs a power supply stop signal for the power supply line 32 to the motor control switch 12 a and simultaneously outputs a power supply stop signal for the power supply line 31 to the relay unit 34. The relay unit 34 has a circuit configuration in which when the power supply stop signal is received from the control device 30, the power supply line 31 is maintained in the cut-off state and the push-button 36 of the return switch 35 is pressed to release the cut-off state. .
[0016]
In the vibration sensor 40, a spherical body 45 having conductivity is suspended from a first contact 43 at the upper center by a metal wire 44 in a space 42 in a case 41 that is sealed and formed in a cylindrical shape. Is provided with a second contact 46 on the circumferential portion that is in contact with the inner surface of the case 41 by shaking. As shown in FIG. 3, the vibration sensor 40 is attached to, for example, a substrate 47 constituting a part of the power shutoff device 28. The substrate 47 is perpendicular to the upper case 21 and the axis of the case 41 is vertical. Mounted as is. The upper case 21 is formed in a frame shape, and side plates 21b and 21b are provided on the left and right side surfaces of the upper case main body 21a in which an opening for attaching the data input / output device 25, the oil supply data display 26 or the video screen 27 is formed on the front side. In addition, a bottom plate 21c is provided on the bottom surface of the lower portion, and is formed in a sealed structure as a whole and attached between the support columns 22a and 22b.
[0017]
In the fueling device 10 having the above-described configuration, when the main power switch 33 is turned on and normal fueling is possible, when an impact is applied to the main body case 11 due to an earthquake or a car collision, the vibration sensor 40 is connected to the wire 44 in the case 41. The spherical body 45 suspended at the start of rolling and repeating the contact and separation with the second contact 46 provided on the side surface side, the first contact 43 and the second contact 46 Repeats the on / off state as a vibration signal. The vibration signal of the vibration sensor 40 is received by the control device 30, and when the on / off operation continues for a certain time, the control signal from the control device 30 is a motor control switch 12a provided in the pump motor 12, and It is output to the relay unit 34. Due to this power supply stop signal, the motor control switch 12a and the relay unit 34 are turned off, the supply of power from the power supply lines 32 and 31 is stopped, and the drive of the pump motor 12 is stopped. The power supply stops. When the supply of power is stopped, the refueling data display 26 is displayed with a battery provided in the control device 30 as a power source to indicate that the refueling has stopped. You can know that the supply of power has stopped. Since the vibration sensor 40 is attached to the substrate 47 and the substrate 47 is attached to the upper case 21 provided in a sealed structure between the left and right support columns 22a and 22b, it is provided directly from the support column with a bracket as in the prior art. Therefore, it is possible to prevent the malfunction of the vibration sensor 40 and to increase the degree of freedom of mounting the vibration sensor 40 because the vibration of the oil supply nozzle 17 or the vibration of a large automobile traveling on the road is not directly received. Can do. In addition, since the control device 30 determines that the vibration signal from the vibration sensor 40 has continued for a certain period of time and outputs a stop signal, the vibration of the oil supply nozzle 17 is removed or the vibration of a large automobile traveling on the road or the like. And vibration caused by an impact caused by an earthquake or an automobile collision can be distinguished, and malfunction can be prevented. Note that the relay unit 34 of this embodiment is maintained in an OFF state by a stop signal from the control device 30, but when restarting, the power supply is cut off by the original power switch 33 and the inspection is not abnormal. After confirming the above, it is possible to return to the original state by pressing the push button 36 of the return switch 35.
[0018]
FIG. 6 is a cross-sectional view of a vibration sensor of the oil supply device according to the second embodiment of the present invention.
[0019]
The vibration sensor 50 is formed of a conductive spring plate on the lower side of a space 52 in a case 51 that is sealed and formed in a cylindrical shape, and a movable electrode 55 positioned on the upper side, and the vertical relationship of the movable electrode 55. The fixed electrode 56 positioned on the lower side is fixed to the lower portion of the case 51 in a cantilever manner so that the tip of the movable electrode 55 bends and contacts the fixed electrode 56, and the movable electrode 56 is fixed to the fixed electrode 56. When a spherical moving body 53 that is always in contact with the movable body and is movable is disposed on the movable electrode 56, and further when a lateral vibration occurs, the spherical moving body 53 rides on the inner surface portion of the case 51. Is formed with a tapered portion 54 having an inclination angle that can be separated from the fixed electrode 56 by its elasticity. Other configurations of the fueling device are the same as those in the first embodiment.
[0020]
In the vibration sensor 50 having the above-described configuration, the spherical moving body 53 in the case 51 jumps up when receiving a vertical vibration such as an earthquake, so that the tip of the movable electrode 56 moves upward by its own elasticity and moves away from the fixed electrode 56. The state in which the spherical moving body 53 falls again and the tip of the movable electrode 56 contacts the fixed electrode 56 and is turned on is repeated. Therefore, longitudinal vibration can be detected by using the vibration sensor 50 of the present embodiment in the fueling device, and the control device 30 receives the vibration signal from the vibration sensor 50 for a certain period of time as in the first embodiment. By judging that it has continued and outputting a stop signal, it is possible to distinguish vibrations caused by unloading of the fueling nozzle 17 or vibrations of a large automobile traveling on the road from vibrations caused by an impact caused by an earthquake or automobile collision. And malfunction can be prevented.
[0021]
In the above embodiment, the power supply to the pump motor 12 and the control device 30 is stopped. However, at least the power supply to the pump motor 12 may be stopped, and the power supply to the control device 30 is not stopped. It can also be. Thereby, even if it does not provide power supplies, such as a battery, in control apparatus 30 itself, it can display on the oil supply data indicator 26 that the fuel supply stopped. Further, the determination of the vibration signal from the vibration sensors 40 and 50 by the control device 30 can be appropriately determined according to the nature of the vibration.
[0022]
【The invention's effect】
As described above, in the fueling device of the present invention, a fueling mechanism having a fueling pump driven by a pump motor operated by external electric power is housed in a lower case, and a sealing structure is interposed above the lower case with a support column. An upper case that houses a control device for oil supply control that controls the drive of the pump motor and an oil supply data display is installed, and vibration is detected in the upper case via a substrate that is provided separately from the column. A vibration sensor is attached, and the control device outputs a stop signal for power supply to the pump motor to the motor control switch according to the vibration signal received from the vibration sensor, so that the vibration sensor is connected via a substrate provided separately from the column. Since it is attached to the upper case, it is possible to prevent malfunction and to easily attach the vibration sensor.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of a fueling device according to a first embodiment of the present invention.
FIG. 2 is a front view of the oil supply device according to the first embodiment of the present invention.
FIG. 3 is a view for explaining a state where a vibration sensor is attached to an upper case of the fueling device according to the first embodiment of the present invention;
FIG. 4 is a block diagram illustrating the configuration of the power shutoff device according to the first embodiment of the present invention.
FIG. 5 is a cross-sectional view of the vibration sensor according to the first embodiment of the present invention.
FIG. 6 is a cross-sectional view of a vibration sensor of an oil supply device according to a second embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Oil supply apparatus 11 Main body case 12 Pump motor 12a Motor control switch 13 Oil supply pump 14 Flow rate pulse transmitter 15 Flowmeter 16 Pipe 17 Oil supply nozzle 18 Oil supply hose 19 Nozzle hook 20 Lower case 21 Upper case 21a Upper case main body 21b Side plate 21c Bottom plate 22a , 22b Column 23 Top case 24 Illumination case 25 Data input / output device 25a Card reader 25b Keyboard key 25c Data display unit 25d Printer 26 Refueling data display 26a Amount display unit 26b Refueling amount display unit 26c Unit price display unit 27 Video screen 28 Power off Device 30 Control device 31 Power line 32 Power line 33 Original power switch 34 Relay unit 35 Return switch 36 Operation button 37 Base plate 38 Nozzle switch 40 Vibration sensor 41 Case 42 Space 4 The first contact 44 metal wires 45 spherical bodies 46 second contact 47 substrate 50 vibration sensor 51 case 52 space 53 spheres moving body 54 tapered portion 55 a movable electrode 56 fixed electrode

Claims (1)

An oil supply mechanism having an oil supply pump driven by a pump motor operated by electric power from the outside, a lower case housing the oil supply mechanism, and a sealed structure mounted above the lower case via a support column. In a fueling device comprising a control device for fueling control that controls driving and an upper case that houses a fueling data indicator,
The upper case is formed in a frame shape and side plates are provided on the left and right side surfaces of the upper case body in which an opening for attaching the oil supply data display is formed on the front side, and a bottom plate is provided on the lower bottom surface. through the substrate provided vertically between the side plates of the left and right sides of the body, hanging swingable by wire spherical body having conductivity in the case is connected to the first contact in order to detect the vibration A vibration sensor is attached to the inner surface of the case so that a second contact point that comes into contact with the spherical body when the spherical body swings is attached so that the axis of the case is vertical. together to determine that the vibration signal of the on-off received from the sensor is continued for a certain time or more outputs a stop signal of the power supply to the pump motor to the motor control switch, be received from the vibration sensor In response to the vibration signal, a stop signal for supplying power to the control device itself is output to the relay unit and received from the vibration sensor. When the power supply to the pump motor is stopped, A fueling device that displays that the engine has stopped .

Images