JPH0444994A - Tank truck unloading system - Google Patents

Abstract

PURPOSE:To prevent misconnection of an oil supply hose and to prevent unloading from a hatch of different oil type by a method wherein an oil type exclusive key corresponding to an oil type to be unloaded is taken out from a key taking-out machine and thus taken-out oil type exclusive key unlocks a tank lock for connecting an oil supply hose. CONSTITUTION:When gasoline is unloaded into an underground tank of a gas station, a driver pushes down a key selection button 19A of a gasoline hatch 2A. When the button 19A is pushed down, an engagement of a locking mechanism is released and at the same time a key taking-out mechanism corresponding to the hatch 2A is driven, so that a key 16A inserted into a key insertion port 18A is taken out. Thus taken-out key 16A from a key taking-out machine 18 is used to unlock a tank lock 15A of an underground tank and unchain a chain 25, whereby a lid 14 is opened and an oil sending hose is connected to an oil pouring port for gasoline and an oil sending port 3A of the hatch 2A.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an unloading system for a tank lorry, and in particular, it is possible to unload different oil types loaded in a plurality of hatches into a tank at a delivery destination without fail. The present invention relates to a tank truck unloading system configured as described above.

2. Description of the Related Art Tanker trucks are generally used as means for delivering oil fluid from oil depots to gas stations and the like.

The tank of a tank truck is divided into multiple hatches, and each hatch is filled with gasoline depending on the order of the delivery destination, for example, gasoline in the hatch of Saka 1, diesel oil, and Na3 in the hatch of Nα2.
Each hatch is often loaded with a different type of oil, such as kerosene. Therefore, when the tanker truck arrives at the destination gas station, the worker checks the name plate installed near the oil filler port of the underground tank to confirm that the type of oil in the underground tank is, for example, gasoline. Connect one end of the hose to the Ntxl tank truck.
After connecting the other end to the oil inlet of an underground gasoline tank, for example, open the on-off valve installed at the oil inlet of the hatch of a tank lorry to release the cargo. Unloading takes place.

Similar operations will be performed when unloading light oil and kerosene.

However, in the past, as described above, the operator used his/her judgment to check the oil type in each hatch of the lorry and the oil type in the underground tank, and then connected the oil feed port of the hatch of the lorry to the oil filler port of the underground tank. Because the vehicle was connected and unloaded via an oil supply hose, for example, workers could misread the nameplate displaying the type of oil in the underground tank, or the oil loaded in the hatch could be mixed with other types of oil. If the fuel had been mistaken for seeds, for example, there was a possibility that diesel oil would be unloaded into an underground tank for gasoline and the gasoline and diesel oil would be mixed inside the tank.

In order to prevent such contamination accidents due to heating of the two liquids, for example, a cover for each oil type is installed at the oil filler port of each underground tank, and when unloading, an oil cover corresponding to the cover for each oil type is installed in the cover of the oil supply hose during unloading. Attaching a type adapter is being considered.

In this case, the oil supply hose can be connected to the oil filler port of the underground tank only when the type of oil in the cover on the underground tank side and the oil type of the adapter attached to the oil supply hose match.

The problem that the invention aims to solve is that, conventionally, oil filler ports in underground tanks are provided with coverlets for different types of oil, so workers have to attach an adapter corresponding to the type of oil to the coverlet of the oil supply hose every time they unload the tank. However, there was a problem in that the work of installing the adapter was troublesome. Additionally, in the past, it was up to the operator to decide which hatch to connect the oil hose to, which left the possibility of accidentally selecting the wrong type of oil hatch when connecting the oil hose, which could lead to unloading. There were issues such as insufficient reliability of work.

Therefore, an object of the present invention is to provide a tank truck unloading system that solves the above problems.

Means for Solving the Problems The present invention provides a tank lorry vehicle having a plurality of hatches into which oil liquids of different oil types are loaded and an oil supply valve provided in each of the plurality of hatches. In a tank lorry unloading system in which the oil feed valve is opened and oil liquid is unloaded into the delivery destination tank, a plurality of valve locks lock the plurality of oil feed valves in a closed state according to oil type. and a plurality of tank locks for locking the lids for closing the oil filling ports of each tank provided at the delivery destination in a closed state for each oil type; An oil type exclusive key formed to unlock a valve lock and a tank lock, and a key for selectively taking out one oil type exclusive key corresponding to the oil type to be unloaded from among the oil type exclusive keys. It is equipped with a take-out machine and.

Function When unloading oil loaded on a tank lorry, the key for the oil type corresponding to the type of oil to be unloaded is taken out from the key take-out machine, and the lock for the tank is unlocked using the key for the oil type to be unloaded. The oil hose can then be connected, and the valve lock can then be unlocked using a key dedicated to the same oil type, allowing unloading to the tank at the delivery destination. Therefore, it is possible to prevent incorrect connection of the oil supply hose by using a key dedicated to the same oil type, and it is also possible to prevent unloading from a hatch of a different oil type.

Embodiment FIGS. 1 to 3 show an embodiment of the tank lorry unloading system according to the present invention.

The tank lorry vehicle 1 shown in FIGS. 1 to 3 loads the ordered oil into a tank 2 at an oil depot, and then delivers the oil to the orderer. The inside of the tank 2 is partitioned by a plurality of hatches, and in this embodiment there are 4 hatches ([hatches 2A, 2B]).
, 2C, and 2D are provided. Also, Hatsuchi 2A is 4kl.

The hatch capacities differ, such as 2 kl for hatch 2B and 1 kl for hatch 2C and 2D. Each hatch 2A.

The types of oil to be loaded in 2B, 2C, and 2D are determined in advance, for example, oil types that are frequently ordered are loaded in hatch 2A, which has a large hatch capacity, and oil types that are ordered relatively infrequently are loaded in hatches 2C and 2D, which have a small hatch capacity. There is.

In addition, each hatch 2 is located below the tank 2 of the tank truck l.
Oil feed port 3A for each A, 2B, 20.2D.

3B, 3C, 3D and oil feed valves 4A, 4B, 4C.

4D is installed. These oil feed valves 4A and 4B.

4C and 4D normally remain closed.

The trolley 1 is always loaded with an oil supply hose 5, and when it arrives at the delivery destination, one end of the oil supply hose 5 is connected to the oil supply ports 3A, 3B,
3C or 3D, and the other end is connected to the oil supply lower of the underground tank 6 corresponding to the oil type.

As shown in FIG. 3, each hatch 2 is attached to the top 2a of the tank 2.
Oil fill ports 88 to 8D for loading oil into A to 2D, handles 9A to 9D of the oil feed valves 48 to 4D, and each handle 9A.
Chain attachment seats 10A to IOD protruding from the vicinity of chain attachment seats 10A to 9D are arranged.

The oil feed valves 4A to 4D provided at the bottom of the tank 2 are connected to the oil feed hose 5 or the oil feed lower of the underground tank 6 and the oil feed ports 3A to 3D corresponding to the type of oil in the underground tank 6, as shown in FIG. After being connected to the tank 2, the operator climbs onto the upper part 2a of the tank 2 and rotates the handles 9A to 9D for the corresponding oil type to open the valve. The oil in the hatches 2A to 2D is unloaded into the underground tank 6 by opening the oil feed valves 4A to 4D.

After oil is loaded into each hatch 2A-2D at an oil depot, the handles 9A-9D of each oil feed valve 4A-4D are fixed at both ends with valve locks 11 (IIA- 11
D), and the chain attachment seat 10A to the hole 10 of the IOD
A chain 12 inserted through A+ to 10D locks the valve in the closed position so that it cannot rotate. Valve locks 11 are provided for each type of oil, and are painted in a predetermined color of the type of oil to make it easier to see from the outside. For example, the hatch 2A for gasoline uses a valve lock 11A painted red, and the hatch 2B for light oil uses a valve lock 11B painted white. Further, a blue valve lock 11C is used for the kerosene hatch 2C, and a yellow valve lock 11D is used for the heavy oil hatch 2D.

As shown in Figure 5, the cover 1 of the oil supply lower of the underground tank 6
3 is normally closed by a lid 14, and the lid 14 has a connecting hole 13a between the cover 13 and the lid 14.

14a and both ends are tank locks 15 (15A to 15
It is irremovably locked to the cover 13 by a chain 25 connected to D). This tank lock 15 is also provided for each oil type, and is painted in a predetermined color for each oil type as described above. That is, the tank lock 15A used for underground gasoline tanks is painted red, and the light oil tank lock 15B is painted white. The kerosene tank lock 15C is painted blue, and the heavy oil tank lock 15D is painted yellow.

As shown in FIGS. 6(A) to 6(D), in the tank lorry vehicle 1, dedicated keys 16A to 16D are prepared for each type of oil. These keys 16A to 16D are key parts 16A to 16 that are inserted into key holes (not shown) of the valve locks 11A to IID and tank locks 15A to 15D to unlock them.
D1, and a magnet 17 (indicated by a black circle in FIG. 6) that forms a magnetic pattern for each type of oil.

As shown in FIGS. 7 and 8, in the driver's seat 1a of the tank truck 1 there is a key 16 corresponding to the oil type when unloading work is performed.
A key extractor 18 is installed to selectively extract A-16D. This key takeout device 18 has each key 16 on the front surface 18a.
There are key insertion slots 18A to 18D into which A-16D is inserted, and a car number card (not shown) such as a magnetic card (not shown) is provided on the side surface 18b (each hatch number, each hatch type of oil, each loading amount, etc.). A card insertion slot 18E into which a card (in which data is stored) is inserted is open. Furthermore, key selection buttons 19A to 19D are provided at the bottom of each key insertion slot 18A to 18D.

In addition, the key extractor 18 is operated by pressing the key selection button +9A-19.
In addition to D, as shown in FIG. 8, there is a CPU 20, a card reader 21 that reads the information stored in the car number card, an alarm 22, and a key extraction mechanism 23A provided in the key insertion slots 18A to 18D. ~23D and each key 16A~16D
magnetic sensors 24A to 24D that read the oil type, and keys 16A to 24D installed and inserted in the key insertion slots 18A to 18D.
It consists of locking mechanisms 25A to 25D that lock 16D. As will be described later, the CPU 20 connects the keys 16A to 16D provided for each oil type to the corresponding oil type key insertion slots 18A to 16D.
key verification means 2OA for confirming that the key has been correctly inserted into the key selection button 18D; and key selection means for extracting an arbitrary key by operating the key extraction mechanisms 23A to 23D for the corresponding oil type by operating each key selection button 19A to 19D. 20B.

Here, the process executed by the CPU 20 during unloading work in the tank lorry unloading system configured as described above will be described with reference to FIG. 9.

First, at the oil depot, each hatch 2A of the tank truck l
~After the predetermined oil type is loaded onto the 2D,
As shown in FIGS. 3 and 4, each handle 98-9D of the oil feed valves 4A-4D is connected to a chain I2 and a valve lock 11A-11 for each oil type.
D locks the valve in the closed position. Drivers should refer to Figure 6 (
Keys 16A to 16D as shown in A) to (D) are passed. Therefore, the driver uses keys 16A to 16D dedicated to each oil type.
are inserted into the key insertion slots 18A to 18D of the corresponding hatch number of the key extractor 18 shown in FIGS. 7(A) and 7(B).

Each inserted key 16A to 16D is inserted into the key insertion slot 18A.
The locking mechanisms 25A to 25D in 18D prevent removal.

The CPU 20 inputs each of the keys 16A to 18D inserted into the insertion slots 18A to 18D in step Sl (hereinafter steps will be omitted).
The pattern of the magnet 7 provided in 16D corresponds to the magnetic sensor 24A provided in each key extraction mechanism 23A to 23D.
24D and reads the oil type data of each key 16A to 16D.

Next, insert the car number card (not shown) into the card insertion slot 18E.
When the card is inserted into the card reader 21, loading data such as the hatch number stored in the vehicle number card, the type of oil loaded in each hatch 2A to 2D, and the loading amount are read (S2). Then, the loading data obtained in S1 and S2 is compared with the oil type data of the key (S3), and it is confirmed whether or not both data match (S4).

If the keys 16A to 1'6D are correctly inserted into the key insertion slots 18A to 18D of the corresponding oil type hatches 2A to 2D in S4, the process moves to S5 and the key selection buttons 19A to 19 are pressed.
Wait until D is operated.

Incidentally, in step S4, the driver accidentally presses the keys 16A to 16A.
16D is inserted into the key insertion slots 18A to 18D for a different oil type, the oil type in the loading data and the oil type data in the key do not match, and the process moves to s8, where the key insertion slots 18A to 18D that have a mismatch are inserted.
Release the lock mechanisms 25A to 25D in 18D and operate the key extraction mechanisms 23A to 23D to remove the accidentally inserted key 16A-113 from the key insertion slot 1°8.
Discharge from A to 18D. Then, the alarm device 22 emits an alarm sound to notify the driver (S9).

In this case, the driver performs the insertion operation of each key again. Therefore, the keys 16A to 16D that match the oil type of each hatch 2A to 2D are inserted into the key insertion slots 18A to 18D separately provided in the hatches 2-A to -2D-.

Therefore, it is reliably prevented that the key for the mowing oil type is taken out during unloading work.

When the tanker truck 1 arrives at the delivery destination gas station, the driver performs unloading work. When unloading gasoline into the underground tank 6 of the gas station, the driver presses the key selection button 19A of the gasoline hatch 2A. When the key selection button 19A is pressed in S5, the lock mechanism 2
5A is released, and the cow-takeout mechanism 23A corresponding to the two hatches is driven to take out the key 168 inserted into the key insertion slot 18A (s6).

Using the key 16A taken out from the key extraction device 18 in this way, the driver unlocks the tank lock 15A of the underground tank 6, removes the chain 25, opens the lid 14, and closes the oil supply hose 5.
Connect to the oil supply lower for gasoline and the oil feed port 3A of the hatch 2A. Next, the driver ascends to the upper part 2a of the tank 2, uses the same key 16A to unlock the valve lock 11A near the fuel filler port 8A of the hatch 2A, and removes t[12. Then, by rotating the handle 9A, the oil supply valve 4A for the two hatches is opened, and the gasoline in the hatch 2A is unloaded into the underground tank 6.

In S7, it is checked whether or not the oil has been unloaded from all hatches 28 to 2D. If some oil still remains, the process returns to S5 and the processes in steps 85 to S7 are repeated.

In this way, one key dedicated to the oil type is connected to the key extractor 18.
Since the valve lock 11A and tank lock 15A are unlocked when the oil supply hose 5 is removed from
2D and the underground tank 6 can be connected, and only the handles 9A to 9D of the oil type to which the oil supply hose 5 is connected can be opened. Therefore, accidents such as unloading different types of oil into the underground tank 6 can be prevented.

For example, suppose that when the driver operates the key ejector 18, he accidentally presses the light oil key selection button 9B to unload gasoline. In this case, although the light oil key 16B is taken out, it is possible to prevent an accident in which the tank lock 15A and the valve lock 11A cannot be unlocked and the light oil is unloaded into the underground gasoline tank 6.

Further, when the driver mistakenly inserts the light oil key 16B into the tank lock 15A due to the color of the key taken out from the key takeout machine 18, it is obvious at a glance because the key 16B is white and the tank lock 15A is red. Therefore, the driver presses key 16.
The incorrect operation can also be noticed by the color of A-16D, and the operator can operate the key extractor 18 again to extract the correct key 16A to 16D corresponding to the type of oil in the underground tank 6.

It is also conceivable that the driver accidentally stops the trolley car in an underground tank for diesel oil when unloading gasoline. In this case as well, since the gasoline key 16A is taken out from the key takeout machine 18, the light oil tank lock 15B is removed.
This prevents the two liquids from overheating because the lock cannot be unlocked.

In addition, in the unlikely event that the vehicle is stopped at an underground tank for diesel fuel despite an order for gasoline, and the diesel key 16B is taken out, the diesel fuel will be unloaded into the underground tank for diesel fuel. This will prevent the worst accidents such as overheating of the two liquids.

In the above embodiment, the chain 12.25 and the valve locks 11A to 11D,
Handle 9 in combination with tank locks 15A to 15D
A to 9D, since the lid 14 of the oil supply lower is locked, it is easy to modify the tank truck 1 and the gas station, and the safety of unloading work is improved with an inexpensive structure.

In the above embodiment, the handles 9A to 9D and the lid 14 are locked using a chain 12, 25, etc., but the lock or lid 14 is not limited to this and locks the shaft of the handles 9A to 9D. Of course, a lock may be provided that connects directly to the cover 13.

Further, in the above embodiment, the CPU 20 in the key takeout machine 18 is provided with the key collation means 20A and the key selection means 20B, but the key takeout machine 18 selects the oil type dedicated keys 16A to 16A by operating at least the key selection buttons 19A to 19D. It is sufficient if the structure is such that only one can be taken out from 16D.

Effects of the Invention As described above, the tank lorry unloading system of the present invention locks the oil supply valve in the closed state with the valve lock provided for each oil type, and locks the oil supply valve in the closed state with the tank lock. After locking the lid, you can unlock the valve lock and tank lock for the oil type with the key selected from the key take-out machine for the oil type, so you can connect the oil supply hose to a tank of a different oil type. It is possible to reliably prevent accidents such as opening oil supply valves of different types of oil by mistake and causing two liquids to heat up in the tank. Also, even if you select the wrong key,
Since the valve lock and tank lock cannot be unlocked, it is possible to prevent the two liquids from heating up, increasing the safety of unloading operations and increasing the reliability of the unloading cage. Sui

[Brief explanation of the drawing]

Fig. 1 is a side view of a tank lorry vehicle C applied to an embodiment of the tank lorry unloading system according to the present invention, and Fig. 2 is a diagram showing a state in which the oil supply hose is connected to the tank lorry vehicle μ and an underground tank. , the third pig is a plan view of a tanker truck,
Fig. 4 is an enlarged view showing the state in which the oil feed valve 7 and the handle are locked, Fig. 5 is an enlarged sectional view showing the state in which the lid of the underground tank 1j is locked, and Figs. 6 (A) to (D) are each 7(A) and 7(B) are front and side views of the key extracting machine, respectively. FIG. 8 is a configuration diagram of the key extracting machine.
The figure is a flowchart for explaining the processing executed by the CPU. l...tank truck, 2...tank, 2A-2D
...Hatch, 3A~3D...Oil port, 4A~4D・
... Oil feed valve, 5... Oil feed hose, 6... Underground tank, 7... Oil filler port, 98~9D... Handle, IOA
~IOD...Chain mounting seat, II (IIA~11D)...
・Valve lock, 12.25...Chain, 13...Cabra, 1
4...Lid, 15° (15A-15D)...Tank lock, 16A-16D...Key 17...Magnet, 18...Key extractor, 19A-19D...Key selection button , 2OA... Key verification means, 20B... Key selection means, 21... Card reader, 22... Alarm, 23A-23D... Key extraction mechanism, 24A-24
D...Magnetic sensor, 25A-25D...Lock mechanism. Patent applicant: Tokiko Co., Ltd.Ethane lorry vehicleFigure 18Cow-take-out machineFigureHandleFigureFigure(A)(B)(C)(D)FigureKey selection buttonFigure

Claims (1)

[Claims] When a tank lorry vehicle, which has a plurality of hatches into which different oil types are loaded and an oil supply valve provided in each of the plurality of hatches, arrives at a delivery destination, the oil supply valve is opened. A tank lorry unloading system that unloads oil into a tank at a delivery destination when a valve is opened, comprising: a plurality of valve locks that lock the plurality of oil feed valves in a closed state according to oil type; a plurality of tank locks for locking the lids for closing the oil fill ports of each tank provided in the tank in a closed state for each oil type; and the valve locks and tanks provided for each oil type and corresponding to each oil type. an oil type-specific key formed to unlock the oil-type lock; and a key take-out machine for selectively extracting one oil-type-specific key corresponding to the oil type to be unloaded from among the oil type-specific keys. A tank truck unloading system characterized by comprising: