KR940002311B1 - Oil mixing preventive device - Google Patents

Abstract

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Description

Mixed oil prevention device

1 is a side view showing a tank lorry and a fueling station in a refueling state having a mixing prevention device for carrying out the present invention.

2 is a side cross-sectional view showing the periphery of the filling hole.

3 is a side cross-sectional view showing the circumference of the coupling of the tank lorry.

Figure 4 is a side cross-sectional view showing the opening and closing mechanism of the main valve.

5 is a control block diagram of a control device.

6 is a state of use of the connection bracket.

FIG. 7 is a cutaway cross-sectional view of a portion of FIG. 6 displaced; FIG.

* Explanation of symbols for main parts of the drawings

3,20 connector 2,8,11 cuff ring

10a, 10b: oil supply hose 14: signal line

15: resistor 40: controller

50: connecting bracket

The present invention relates to a mixing prevention device for preventing the mixing of oil when the tank lorry unloads gasoline, diesel, etc. in the storage tank of the gas station.

If the type of oil in the hatch of the tank lorry does not match the type of oil in the oil tank, mixed oil may occur. In order to prevent this, in the related art, a key is provided at each of the tank's oil inlet and the hatch, and the key is matched so that the connection between the oil inlet and the tank lorry's oil hose can be opened and the hatch and the bottom valve can be opened.

This conventional method is not only cumbersome to store and manage the keys, but also has the inconvenience of having to search for a particular key among several keys, and the inconvenience of having to search for a specific key among several keys.

Therefore, the applicant has compared the oil type signal in the subsidiary element 63-51683 to the oil type signal indicating the resistor installed in the oil supply tank, the open valve signal of the bottom valve sensor of the tank lorry hatch, and the load chamber to compare the oil type from the data. In order to prevent the mixing of oil and to prevent the mixing of oil by installing an alarm device that sounds an alarm when it does not match the type of control device and oil, a mixed oil prevention device has been proposed.

Although the above proposal is valid, the connector for connecting the resistor provided in the oil supply tank and the signal line for transmitting the resistance value of the resistor is mounted on the side of the coupling. Because of the directionality, it is difficult to connect and troublesome. In addition, there are similar inconveniences when using two or more lubrication hoses.

An object of the present invention is to provide a mixing control device having a simple structure that facilitates connection between a signal line for transmitting a signal, a storage tank side, and a tank lorry side.

According to the present invention, an electrical identification part is provided in the oil inlet of the free tank, and a signal line connected to the signal line of the identification part and the hose is provided inside the oil supply hose and the connection bracket.

The electrical identification unit is preferably composed of a resistor. The signal line is provided on the center axis of the hose, and the connector to which the signal line is connected is provided on the center axis of the tank side and tank lorry side couplings, and the earth wire is connected to the hose. It is preferable to immerse the structure and to configure one end of the resistor to be connected to the earth wire.

In addition, when the bottom valve sensor which detects the opening and closing of the bottom valve is connected to the excitation, the main valve installed in the tank locomotive coupling is allowed to open the valve, and the valve is released when the magnetic force is canceled. It is desirable to install an electronic clutch that prevents this.

In addition, a control device is provided, and the control device is configured as a microcomputer, which is inspected in the cab of the tank lorry, and in the microcomputer, the storage room stores data, that is, a type of oil for each hatch; The open-valve signal of the bottom valve sensor of the hatch, the identification signal from the resistor and the load chamber are compared with the data to determine whether the types of oil coincide. It is preferable to provide the oil type judgment part iii).

The identification signal is inputted to the microcomputer as a signal for each oil type, or the signal itself having a table of tank numbers and oil types on the microcomputer is inputted as a tank number, and the oil type signal is input in the microcomputer. You may convert.

In the mixing prevention device configured as described above, when the couplings at both ends of the lubrication hose are connected to the couplings at the storage tank side and the tank lorry side, one end of the signal line is connected to the resistor via a connector and the identification signal indicated by the resistance value is indicated. To the control unit via a connector connected to the other end.

When the bottom valve is opened, the control unit compares the valve open signal, the identification signal and the load room data of the bottom valve sensor to determine whether the oil species match. It is possible to open the main valve so that the main valve can be opened and refueled. If it does not coincide, the main valve is opened so that the main valve is disabled. (混油) to prevent.

EXAMPLE

Referring to the drawings, an embodiment of the present invention will be described below. In FIG. 1, oil storage tanks T to T3 (hereinafter, generically, reference numeral T is used) are buried in a site A of a gas station, and oil pipes 1a to 1c are embedded. (In the case of generic terms, reference numeral 1 is used). For example, tank T1 stores high octane gasoline, regular gasoline in tank T2, and light oil in tank T3, respectively.

Couplings 2a to 2c (hereinafter, generically, reference numeral 2 is used) are provided at the front end of the electric lubrication pipe 1, and connectors 3 to be described later are provided to these couplings 2, respectively.

On the other hand, tank lorry R is provided with hatches H1 to H3 (hereinafter, collectively referred to as H). For example, hatch H1 is a high octane gasoline, a hatch H2 is a regular gasoline, and a hatch H3 is light oil. It is.

Each of these hatches H includes bottom valves 4a to 4c (hereinafter, generically, reference numeral 4 is used) to be opened and closed as the opening / closing handle 6 and a bottom valve sensor 5a for detecting opening and closing of the bottom valve 4. To 5c (hereinafter, referred to as "5" in the general term) are provided.

The outlet side of these bottom valves 4 communicates with the outflow pipe 7, and the valve body 19 and the arm coupling 8 are provided in the end part of this outflow pipe 7. As shown in FIG. The male coupling 11 of the first oil supply hose 10A is connected to the female coupling 8, and the male coupler of the second oil supply hose 10B is connected to the female coupling 2 of the oil supply pipe 1. The ring 11 is connected, and each of the male couplings 11 and 11 on the other side of these joints 10A and 10B is bound as a coupling bracket 50. Here, since the structure of the first oil supply hose 10A and the second oil supply hose 10B is the same, a reference numeral 10 is used in the general case.

Moreover, the control apparatus 40 is provided in the cab of the tank lorry R, and the dripping data, ie, the oil type of each hatch H, is stored in the control apparatus 40. As shown in FIG.

In FIG. 2, the couplings 2 and 11 are formed of a conductive material, and when the male coupling 11 is inserted into the female coupling 2, the stopper 2A which automatically binds both of them is formed. 9A) are provided respectively.

The electrical connector 3 is formed in a tubular shape with a conductive material, and is supported by the arm 10 on the center axis of the arm coupling 2 with the insulating cylinder 3A interposed therebetween. Moreover, the chamber 2B is formed in the coupling 2, and the resistor 15 which has a different resistance value according to the kind of oil is accommodated in the room 2B.

One end of the resistor 15 is connected to the connector 3, and the other end of the resistor 15 is connected to the coupling 2. On the other hand, on the center axis of the oil supply hose 10B, the signal line 14 covered with the flexible protective tube 13 via the arm 12 is provided. Moreover, inside the oil supply hose 10B, the earth wire 22 is embedded so as to contact the oil supply hose 10B, and both ends of the oil supply hose 10B are connected to the coupling 11.

The male coupling 11 and the female coupling 8 in FIG. 3 are formed as a conductive material, and the valve body 19 having the female coupling 8 is bent twice at right angles to face each other. A passage 16 opened in the) direction, and an opening 16a at one end thereof is connected to the outlet pipe 7 and is formed in the opening 16b at the other end of the female coupling 8. The male coupling 11 is connected to.

The connector 20 is supported by the boss | hub part 17 via 20 A of insulating cylinders on the center axis line of the opening 16b side. And the signal line 21 connected to the control apparatus 40 is connected to this connector 20 side.

On the other hand, the main valve 24 located in the valve seat 19 is provided in the opening 16a side, and the force is added by the return spring 25. As shown in FIG. The tip end of the arm 26 abuts on the tip of the valve section 24a of the main valve 24, and the arm 26 is fixed to the valve operating section 27 held by the valve body 19.

In Fig. 4, the valve operating section 27 is supported to rotate with the sleeve 29 inserted through the boss portion 17c and the cover 28 so as to rotate. The disk 30 is fixed to this valve operation period 27, and the electromagnetic clutch 31 is comprised by the flange part 29a formed from the disk 30 and the sleeve 29. As shown in FIG.

At the outer end of the electric sleeve 29, the boss portion 32a of the valve opening / closing handle 32 is fixedly installed, and a torsion spring type return spring between the handle 32 and the cover 28 is provided. 33) is fitted. A long hole 32b is formed at the end of the handle 32, and an L-shaped lever whose one end is inserted into the through hole 32d formed in the protrusion 32c of the handle 32 is formed in the long hole 32b. The other end of 34) is inserted. The lever 34 adds force to the sleeve 29 by a spring 35 sandwiched between the protrusion 32c and an end projecting from the through hole 32d is formed through the cover 28. It is inserted into the ball 28a.

In addition, although not shown, the cover 28 is provided with a separate through hole at a position of 90 degrees clockwise from the right side of the drawing with respect to the through hole 28a. Moreover, the transparent board 36 is provided in the boss | hub part 32a of the handle 32, and the opening / closing state of the main valve 24 is shown in the part which opposes the transparent board 36 of the valve operation | operation period 27. A carved seal line 27a is laid out for viewing.

In FIG. 5, the control device 40 is composed of a microcomputer, and the luggage compartment stores the data, i.e., the storage means 41 for storing the type of oil for each hatch, and the individual signals of the bottom valve sensor 5. Compares the identification signal from the resistor 15 with the dripping data stored in the storage means 41, and judges whether the types of oil match, and if it matches, the electronic clutch 31 ), And the bottom valve opening and closing means 43 for judging whether the bottom valve 4 is opened or closed in response to a signal from the oil type judging means 42 for exciting the. ) Is installed.

Therefore, when the male coupling 11 is connected to the female coupling 8, for example, and the male coupling 11 at the other end is connected to the coupling 2, both ends of the signal line 14 are connected to the connector. Connected to (3, 20), respectively, the identification signal of the resistor 15 is transmitted to the control device 40 via the signal lines (14) and (21). Then, when the open / close handle 6 is rotated to open the bottom valve 4, the bottom valve sensor 5 outputs a signal for opening the hatch bottom valve. The oil type judging means 42 of the control device 40 selects the oil type of the hatch from the data, and the load chamber stored in the hatch bottom valve open signal and the storage means 42 selects the oil type of the hatch from the resistor 15. Compared with the identification signal, the type of oil in the tank T and the hatch H is judged to coincide, and when it matches, the electromagnetic clutch 31 is excited, and when it does not match, the electromagnetic clutch ( 31) It is not to be a woman.

Subsequently, when the valve opening / closing handle 32 is rotated 90 degrees clockwise by pulling down the lever 34, the sleeve 29 is engaged with the disk 30 by the excitation of the electric clutch 31 described above. Therefore, the valve operation section 27 rotates, the arm 26 rotates clockwise, the valve section 24a is moved to the right, the main valve 24 opens, and lubrication is performed.

At this time, the end of the lever 34 is latched in the through hole separate from the through hole 28a to hold the valve opening / closing handle 32 in the oil supply position. When lubrication is finished, pull the lever 34 to return the valve opening and closing handle 32, the main valve 24 is closed, and further, the intermediate position of the hooks (9, 9) of the outer circumference of the male coupling 11 The hooks 64, which are engaging projections, are respectively protruded at 180 DEG symmetrically to each other, and the hooks 64 are formed in an L shape in a direction opposite to the coupling bracket 50. As shown in Figs.

On the other hand, female couplings 51 fitted to the male coupling 11 are formed at both ends of the coupling bracket 50. The arm coupling 51 is provided with a stopper 52 which is caught by the locking hook 9. Further, bulges 53 are projected on the outer circumference of the axial center in the axial center of the connecting bracket 50 at 180 ° symmetry, respectively, and levers 54 are pins 55 on the bulges 53. It is extracted by 着.

And in the vicinity of the pin 55 of the lever 54, the engagement ring 56 which is a engagement ring is extracted. The engagement ring 56 is formed in a rectangular shape having a width that can be hooked to the hook 64, and the length is such that the male coupling 11 can be easily inserted into the female coupling 51. When the lever 54 is inserted to the male coupling 11 side, the engagement ring 56 is formed in such a length that the hook 64 can be easily hooked up.

Moreover, the length of the lever 54 is formed as long as possible within the range shorter than the engagement ring 56. As shown in FIG. And in the connection bracket 50, the signal line 59 provided in the both ends of the connector 58 connected to the signal line 14 of the coupling 11 is hold | maintained by the arm 57. As shown in FIG.

To connect the oil supply hoses 10A and 10B, first, the male coupling 11 of the oil supply hose 10A is inserted to an extent that can be easily inserted into the female coupling 51 of the coupling bracket 50. Thus, when both levers 54 are knocked down on the male coupling 1 side, the engagement ring 56 is hooked on the hook 64, and the lever 54 is rotated to the coupling bracket 50 side, the ratio of the levers. A large tensile force acts on the engagement ring 56 by 2 / l, and the male coupling 11 is completely inserted into the female coupling 51. As shown in FIG. In this case, the locking hook 9 and the stopper 52 are automatically locked.

Next, both levers 54 are knocked down on the male coupling 11 side, the engagement ring 56 is removed from the hook 64, and both are rotated to the coupling bracket 50 side, as described above. In order, the male coupling 11 of the second oil supply hose 10B is connected to the coupling bracket 50.

When both couplings 11 are connected to the connection bracket 50, the signal line 14 in the oil supply hose 10A is connected to the signal line 14 in the oil supply hose 10B via the signal line 59 in the connection bracket 50. ) Is connected.

Since the present invention is configured as described above, the signal line can be easily connected to the oil storage tank side and the tank lorry side only by connecting the coupling of the oil supply hose to the coupling of the oil supply port and the tank lorry side. In addition, by providing a signal line on the center axis of the lubrication hose, the connection can be simplified without directivity when connecting the lubrication hose. Moreover, since it consists of a resistor, a connector, and a signal line, a structure can be simplified.

Claims (1)

A coupling (2) installed at the tip of the oil storage tank (T) and having a connector (3) connected to the electrical identification unit (15); At one end, a coupling 11 connected to the coupling 2 and a signal line 14 connected to the connector 3 are provided, and at the other end thereof, a coupling in which the coupling 11 has the same structure ( 11) and an oil supply hose 10 in which one end of the signal line 14 is extended; A valve body (19) having a coupling (8) connected to the coupling (11) at the other end of the oil supply hose (10) and a connector (20) connected to the signal line (14); An outlet pipe 7 connected to each hatch H via the valve body 19 and the bottom valve 4; A bottom valve sensor 5 for detecting opening and closing of each bottom valve 4; Dripping data storage means (41) for storing the oil type of each hatch (H); The control device 40 determines whether the oil type is correct or wrong based on the oil type signal input from the connector 20 and the valve opening signal from the bottom valve sensor 5, and outputs a closing signal to the valve body 19 when the oil type is different. Mixing prevention device, characterized in that configured as a tank lorry holding.

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