JP3763187B2 - Tanker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tank truck having a function of determining an oil type when fuel oil is replenished to an oil storage tank installed at a gas station and preventing the injection of a different oil type.
[0002]
[Prior art]
When fuel oil is replenished from the tank truck to the oil storage tank, it is necessary to confirm the match between the oil type to be replenished from the hatch and the oil type of the oil storage tank in order to prevent mixed oil. Because it relies on manpower, mistakes can sometimes occur.
For this reason, as described in Japanese Patent Laid-Open No. 3-249380, an oil type determination means is provided in the discharge pipe of the lorry and the oil supply pipe of the oil supply tank, and if they match, the bottom valve can be opened by a signal. A tank lorry is also proposed.
[0003]
[Problems to be solved by the invention]
However, if it is intended to be applied to an existing lorry, even if the oil type determination means can be installed relatively easily, the existing valve is of an electromagnetic drive type that can be opened / closed by a signal or an air drive type. There is a problem that it requires a significant improvement, such as replacement, and costs increase.
This invention is made | formed in view of such a problem, The place made into the objective is to provide the oil-mixing prevention apparatus which can be equipped with a slight improvement also to the existing tank truck.
[0004]
[Means for Solving the Problems]
In order to solve such a problem, in the present invention, in a tank truck having a tank having a plurality of hatches connected to a discharge pipe via a bottom valve opened and closed by a drive shaft operated by a detachable handle. the handle is configured to look engage with a particular one of the drive shaft, and the outer protective wall of the tank in a state of being fixed by the number only prepared and locked means corresponding to the plurality of the hatch The lock means is received by a signal from an unloading control device arranged in the vicinity of the operator's cab for determining the coincidence between the oil type of the hatch to be unloaded and the oil type of the oil storage tank. The handle that is engaged with only the drive shaft of the hatch that is unlocked and matches the oil type of the oil storage tank can be taken out and matches the oil type of the oil storage tank It is configured to be unloaded from the hatch that.
[0005]
[Action]
Only when the oil type match is confirmed, the handle that can be engaged with the drive shaft of the specified hatch bottom valve can be taken out, and the hatch bottom valve that matches the oil type can be opened and closed. Without requiring replacement with a bottom valve having a function of opening and closing, a simple improvement of the handle and the valve drive shaft can prevent erroneous oil supply.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Therefore, details of the present invention will be described below based on the illustrated embodiment.
FIG. 1 shows an embodiment of the present invention. A lorry 1 divides a tank 2 into a plurality of oil storage hatches 5, 6, 7 by partitions 3, 4, and bottom valves 8, 9 at the bottom. The oil supply hose 12 is connected to the oil supply pipe 14 of the oil storage tank 13 through the oil supply hose 12.
[0007]
The oil type identification piece reading means 15 is detachably attached to the reading means 15 in the vicinity of the coupling on the oil supply pipe 14 side of the oil supply hose 12 and the oil type identification piece 16 indicating the oil type of the oil storage tank 13 is attached to the oil supply pipe 14. Is provided. The oil type identification piece reading means 15 is configured to transmit the oil type data of the oil type identification piece 16 to the unloading control device 18 provided in the vicinity of the cab 52 by wire or wireless.
[0008]
In the protective wall 19 at the top of the tank 2, the oil inlets 20, 21, 22 of the hatches 5, 6, 7 and the lower ends are connected to the bottom valves 8, 9, 10 as shown in FIG. Drive shafts 26, 27, 28 provided with handle mounting portions 23, 24, 25 are provided on the outer side of the protective wall 19 serving as a non-explosion-proof region, as shown in FIG. A case 35 is provided that accommodates electromagnetically driven lock members 32, 33, and 34 that individually fix the handles 29 to 31 that can be engaged only one-on-one with the handle mounting portions 23 to 25.
[0009]
The handles 29 to 31 and the handle mounting portions 23 to 25 constitute a coupling that is formed as a male type and a female type having different cross-sectional shapes and fits only one to one.
[0010]
FIG. 4 shows an embodiment of the above-described unloading control device 18. The oil type selection means 41 is based on the hatch number from the keyboard 42 of the control device 18, and oil type data in the storage means 43 described later. Is output to the oil type coincidence determining means 44.
[0011]
The oil type match determination unit 44 reads the oil type data from the oil type signal receiving unit 45 that receives a signal transmitted from the identification piece reading unit 15 by radio or wire, and the oil type selection unit 41 reads the data from the storage unit 43. The oil type data is compared, and if they match, a signal is output to a lock member control means 46 and a display 47 described later, and if the oil types do not match, the alarm 48 is activated. The lock member control means 46 selects the lock members 32-34 of the handles 29-31 that can open and close the hatches 5, 6, 7 designated by the keyboard 42, and outputs a signal for releasing only one.
[0012]
As shown in FIG. 5, the storage means 43 is configured as a magnetic card or IC card in which the hatch number data 50 is fixed data and the oil type data 51 is stored in a rewritable manner corresponding to the hatch number. oil seed data 5 1 hatch number that is configured to output to the oil type selection means 41.
[0013]
In this embodiment, the oil supply hose 12 is connected to the discharge pipe 11 and the oil supply pipe 14 of the oil storage tank 13, and the oil type identification piece 16 provided in the oil supply pipe 14 is loaded into the identification piece reading means 15. Next, when the number “1” of the hatch 5 to be unloaded is input from the keyboard 42, the oil type selection means 41 reads the oil type data “regular” of the number “1” stored in the storage means 43 and reads the oil The data is output to the seed match determination means 44.
[0014]
The oil type match determination unit 44 compares the oil type data of the oil type identification piece 16 received by the oil type signal reception unit 45 and the oil type data from the oil type selection unit 41, and if they match, lock control is performed. A signal is output to the means 46 to release the lock mechanism 32 that fixes the handle 29 that opens and closes the bottom valve 8 of the hatch 5.
[0015]
In addition, when the coincidence of the oil type cannot be confirmed, an alarm is issued by the alarm device 48 to prompt the confirmation of the oil type without releasing any of the lock members 32 to 34.
[0016]
When the handle 29 is taken out from the storage case 35 and mounted on the handle mounting portion 23 of the bottom valve drive shaft 26 of the hatch 5 and the bottom valve 8 is opened, lubrication is started. At this time, even if an attempt is made to attach the handle 29 to the handle attachment portions 24, 25 of the bottom valves 9, 10 of the different hatches 6, 7, the shape is different, so that the attachment is physically impossible and the bottom valves 9, 10 are The valve cannot be opened, and erroneous lubrication is prevented.
[0017]
When the lubrication is completed, the bottom valve 8 is closed, and then the handle 29 is removed from the drive shaft mounting portion 23. When the handle 29 is taken out and inserted into the empty lock member 32 before lubrication is started, the handle 29 is locked. It is fixed by the member 32 and cannot be taken out thereafter.
[0018]
When unloading from another hatch 6 or 7, the same procedure as described above is followed, and when the oil type matches, the bottom valves 9 and 10 of the hatch 6 and 7 designated by the keyboard 42 are confirmed. Since only one of the lock members 33 and 34 of the handles 30 and 31 that can be engaged with the drive shafts 27 and 28 is released, only the hatch handle designated by the keyboard 42 can be taken out. Refueling can be performed without waking up.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of the present invention.
FIG. 2 is a view showing an embodiment of a bottom valve opening / closing mechanism.
FIG. 3 is a view showing an embodiment of a handle housing case.
FIG. 4 is a block diagram showing an embodiment of the control device.
FIG. 5 is a diagram showing an embodiment of storage means.
[Explanation of symbols]
2 Tank 5-7 Hatch 8-10 Bottom valve 11 Discharge pipe 12 Oil supply hose 13 Oil storage tank 14 Oil supply pipe 15 Identification piece reading means 16 Oil type identification piece 18 Unloading control device 19 Protective wall 23-25 Handle mounting part 26-28 Drive Shafts 29 to 31 Handles 32 to 34 Lock member 35 Handle storage case

Claims (2)

In a tank truck having a tank having a plurality of hatches connected to a discharge pipe via a bottom valve that is opened and closed by a drive shaft operated by a detachable handle,
The handle is configured to be engaged with only one specific drive shaft, and is provided in a number corresponding to the plurality of hatches and fixed to the outside of the protective wall of the tank in a state where the handle is fixed. Housed in a placed case,
Further, the lock means releases the lock by a signal from an unloading control device arranged in the vicinity of the operator's cab for determining the coincidence between the oil type of the hatch to be unloaded and the oil type of the oil storage tank. A tank lorry configured to enable removal of the handle that engages only with the drive shaft of the hatch that matches the oil type, and to allow unloading from the hatch that matches the oil type of the oil storage tank.   The unloading control device reads out from the storage means storage means for outputting the oil type data of the hatch according to data from the hatch number input means, oil type data from the oil type identification piece indicating the oil type of the oil supply tank, and the storage means. The oil type coincidence determining means for comparing the oil type data that has been obtained, and the handle that opens and closes the bottom valve of the hatch designated by the hatch number input means by a signal from the oil type coincidence determining means are fixed. 2. The tank lorry according to claim 1, comprising a lock member control means for outputting a release signal only to the lock member.

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