JPH0728158Y2 - Incorrect oil supply prevention device for oil storage tank - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to petroleum transported by a tank truck.
The present invention relates to an erroneous oil supply prevention device for an oil storage tank that supplies a predetermined oil to a predetermined oil supply port without error when supplying oil from the oil supply port of a gas station to the oil storage tank.

[Conventional technology]

Petroleum transported from the oil depot to the gas station is
Various types of oil such as regular gasoline, high-octane gasoline (high-octane), kerosene, and light oil are carried by a tank lorry loaded with a container defined in multiple, but from a tank lorry at a gas station. Refueling
As shown in FIG. 5 and FIG. 6, a predetermined one of the bottom valve operation handles 2 formed on the tank upper floor of the tank truck 1 is opened to open the valve, and the valve is led to the rear end portion or the side portion to open and close. It is common to supply the oil from the oil supply port 3a of the common oil supply pipe 3 having the lever 3b to the oil supply port 5 of the corresponding oil storage tank of the gas station via the oil supply hose 4. For refueling the oil storage tank, an operator connects the supply pipe 3 at the rear end or side of the tank truck with the oil supply port of each oil storage tank by an oil supply hose 4 to make regular, high-octane oil, kerosene, light oil, This is done by sequentially changing the positions of the oil filling port and the bottom valve operation handle of the tank / lorry for heavy oil, but in the past, the work of connecting and replacing the oil supply hose to the oil filling port of the specified oil storage tank, and the oil filling port The operator opens and closes the valve corresponding to the above, relying only on the visual recognition / memory means, in which the operator visually confirms and stores the display of the oil inlet and the bottom valve operating handle.

[Problems to be solved by the device]

In the above-described conventional oil supply device for the oil storage tank, a predetermined oil from a plurality of types must be supplied to the oil inlet of the corresponding predetermined oil storage tank, but the operator mistakenly selects another type. There was a risk of opening the valve and causing an accident in which different oil was supplied to the oil inlet.

The present invention has been made for the purpose of solving the problems in the above conventional device and providing an apparatus for preventing erroneous oil supply to an oil storage tank.

[Means for Solving the Problems]

As a specific means for achieving the above-mentioned object, a predetermined oil that is separately loaded in the tank of the tank / lorry is fed through a fuel supply hose from a fuel supply pipe led to the rear end or side of the tank / lorry. A refueling device for supplying oil to a corresponding refueling port of a gas station, a connecting member projecting on an outer peripheral surface of the refueling port, and a connecting member hung on an outer peripheral surface of a lid of the refueling port. An engaging member that is locked by being engaged with, a mounting portion that is mounted on the outer peripheral surface of the oil filling port, a tongue piece that projects outward from the mounting portion, and a plurality of tongue pieces that are bored in the tongue piece. Is fitted between the fixing member having the engaging hole and the outer peripheral surface of the oil filling port and the engaging member of the lid, and extends over the connecting member to engage with the engaging hole. It has a leg portion that can be removed from the oil filler opening when the lid is opened. The engaging hole includes a releasing member and a key attached to the attaching / detaching member and capable of unlocking only the lock of the handles of the plurality of bottom valve operating handles formed on the tank upper surface floor of the tank / lorry. And an engaging position of the leg portion of the detachable member is different for each fixing member, and one fixing member and one leg portion capable of engaging with the engaging hole of the fixing member at the engaging position. It is characterized in that a pair of locking / unlocking mechanism is configured with the detachable member.

[Action]

With the above configuration, when the predetermined oil type in the plurality of bottom valve operation handles formed on the tank upper floor of the tank / lorry and the oil type of the lubrication port that should correspond to this are different, The key does not match the lock on the bottom valve operating handle and cannot be unlocked. If the attaching / detaching member does not match the fixing member of the locking / unlocking mechanism provided in the oil filling port, the locking / unlocking mechanism cannot be locked and the operator does not operate it correctly. Call attention to.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 to FIG. 3 are perspective views for explaining the locked / unlocked state of the locking / unlocking mechanism 6 provided in the oil filling port 5 of each oil storage tank of the gas station. Cover the oil inlet 5 with the lid 7,
A hooking member 7a which is hooked to the lip 5a of the oil inlet 5 on the lid 7.
Then, the engaging member 7b is vertically provided at a position facing this. On the outer side surface of the oil injection port 5, a connecting member 5b is attached at a position corresponding to the engaging member 7b. The connecting member 5b and the engaging member
Engagement holes 7c, 5c are formed in each of 7b, and a padlock 8
It is penetrated and locked. The locking / unlocking mechanism 6 is composed of a pair of members, that is, a fixing member 9 and a detachable member 10. The fixing member 9 is composed of a mounting portion 9a for mounting the outer peripheral surface 5d of the oil filling port 5 and a tongue piece 9b having an engaging hole 9c protruding outward, and a fastening band 11 is provided on the outer peripheral surface 5d of the oil filling port. It is installed and fixed. The attaching / detaching member 10 is fitted between the connecting member 7b which is vertically provided on the lid 7 so that the upper portion thereof straddles the connecting member 5b of the oil filling port, and the tongue piece 10b at the upper end is connected by the connecting member 7b of the lid 7. Can be suppressed. The engaging hole 9c of the fixing member 9 is provided at the bottom of the detachable member 10.
Is formed so as to straddle the connecting member 5b, and on one side thereof, only the lock of the handle of the same oil type in the plurality of bottom valve operation handles 2 formed on the tank upper surface floor of the tank truck is formed. A key 12 for unlocking is attached. Therefore, the locking / unlocking mechanism 6 in the locked state in which the fixing member 9 and the detachable member 10 are engaged with each other cannot be unlocked unless the padlock 8 is unlocked and the lid 7 is opened. .

FIG. 4 is a perspective view of the bottom valve operating handle 2 formed in a required number on the tank upper floor 1a of the tank truck. The support shaft 2a of the bottom valve operation handle 2 is screwed into the base 1b, and the valve is opened / closed by rotation of the handle. On the base 1b,
A lock fixing metal fitting (13) consisting of a mounting portion (13a) attached to the outer peripheral surface and a tongue piece (13b) protruding outward is tightened and fixed by a tightening band (14). A ring 15 is fitted into the hole 13c formed in the tongue piece 13b of the lock fixing metal fitting, the ring 15 and the bottom valve operating handle 2 are connected by a ring-shaped chain 16, and the end portion is locked by a lock 17. It is locked. Therefore, the bottom valve operating handle 2 is prevented from rotating by the locked ring-shaped chain 16.
The locked lock 17 can be unlocked only by the key 12 attached to the attaching / detaching member 10 of the locking / unlocking mechanism 6 mounted on the oil inlet 5, only the lock having the same oil type.

Next, the lock confirmation mechanism provided in the lock / unlock mechanism 6 will be described with reference to FIGS. 1 to 3. The lock confirmation mechanism is composed of a fixing member 9 mounted and fixed to a specific oil filling port, and a detachable member 10 corresponding thereto. That is, an engagement hole 9c formed in a specific fixing member, for example, the fixing member 9 mounted and fixed to a regular oil filling port, is different from an engaging hole formed in another fixing member of the oil filling port such as high octane or kerosene. , Each leg
If the engaging position with 10a is different and the attaching / detaching member (10 'in FIG. 3) having a leg portion that does not correspond is attached, the position of the engaging hole 9c does not match, and the height of the leg portion 10a increases. Only it will be in a state of floating. Therefore, even if the oil inlet 5 is covered with the lid 7,
It is impossible to lock and lock the lid 7 because an unattachable detachable member interferes with it. Therefore, the operator is informed that the attachment / detachment member having the key 12 for unlocking the lock of the bottom valve operation handle is not attached to a predetermined oil inlet but is attached to a different oil inlet. Therefore, since the attachment / detachment member has been replaced with a port other than the predetermined oil supply port, there is no possibility of supplying a different oil type at the time of the next oil supply. This locking confirmation mechanism can be identified by the color if the fixing members attached and fixed to the oil filling ports of the respective oil storage tanks have different colors and the colors of the corresponding attaching / detaching members are mutually matched, It is more effective to prevent erroneous operation.

The operation of refueling the erroneous oil refueling prevention device according to the present invention will be described below.

(1) The operator of the tank truck receives a key from the person in charge of the gas station to open the lid of the oil filling port of the oil storage tank.

(2) Connect one end of the oil supply hose to the oil supply port of the supply pipe led to the rear end or the side of the tank truck.

(3) Unlock the oil inlet (regular) of the designated oil storage tank,
Open the lid.

(4) Remove the lock / unlock mechanism (regular) of the locking / unlocking mechanism.

(5) Connect the other end of the oil supply hose to this oil inlet.

(6) Unlock the lock of the predetermined bottom valve operation handle (regular) on the tank upper floor of the tank / lorry with the key of the detachable member removed above and open it.

(7) Open the lever on the side of the tank / lorry supply pipe.

(8) Refueling (9) Same as above Close the lever.

<The above is the regular refueling completion> (10) Unlock the high-octane oil filling port of the next scheduled refueling and open the lid (this operation is performed during the regular refueling and waits Efficient).

(11) Remove the lock / unlock mechanism with lock / unlock mechanism (high speed).

(12) Close the refueling valve (regular) on the tank floor of the tank / lorry.

(13) Move the other end of the refueling hose from regular to the high-octane lubrication port and connect it.

(14) The detachable member with a key (regular) is engaged with the fixing member of the oil inlet (regular), the lid is closed, and the lock is locked.

(15) With the key of the detachable member (high-octane), unlock the lock of the bottom valve operation handle (high-octane) on the tank upper floor of the tank truck to open the valve.

(16) Open the lever on the side of the tank / lorry supply pipe.

(17) Refueling (18) Same as above Close the lever.

<The above is the end of high-octane refueling> After that, the kerosene, light oil, and heavy oil are refueled sequentially by the same operations as in (10) to (18) above. Finally, (19) Turn the bottom valve operation handle (heavy oil) on the tank top floor of the tank truck to close the valve.

(20) Remove the other end of the oil supply hose from the oil inlet (heavy oil).

(21) The detachable member (heavy oil) with a key is engaged with the fixing member of the oil inlet (heavy oil), the lid is closed, and the lock is performed.

(22) Remove one end of the refueling hose from the refueling port of the tank / lorry supply pipe and store it.

(23) Return the locked lid key to the person in charge at the gas station.

This completes all refueling work.

As described above, the fixing members attached and fixed to the oil filling ports of the respective oil storage tanks are distinguished by color, for example, red for regular, black for high octane, white for kerosene, blue for light oil, and yellow for heavy oil. However, if the colors of the detachable members corresponding to the above-mentioned respective fixing members are made to match each other, it is possible to confirm the locking by the engagement of the fixing member and the detachable member and also to make a visual identification, so that an erroneous operation can be prevented in advance.

[Effect of device]

The present invention, when supplying several kinds of oil from a tank truck to an oil tank of a gas station, has a fixing member having an engaging hole at the oil inlet of each oil tank, and a leg engaging with the engaging hole. A locking / unlocking mechanism consisting of a detachable member having a section is provided, and the detachable member only unlocks the handle for which the oil types of the bottom valve operating handles formed on the tank top floor of the tank / lorry match. Since a lockable key is attached, when trying to open a different oil type, the key of the attachment / detachment member does not match the lock of the bottom valve operation handle and cannot be unlocked. Further, since the engaging positions of the fixing member and the detachable member of the locking / unlocking mechanism at the oil inlet of each oil storage tank are different,
If the attachment / detachment member provided with the key for unlocking the bottom valve operation handle does not match the fixing member of the locking / unlocking mechanism provided at the corresponding oil inlet, the engagement between the fixing member and the attachment / detachment member The mating positions do not match, and the height of the legs of the attachment / detachment member rises, and the lid cannot be closed. Therefore, it becomes impossible to lock the locking / unlocking mechanism, the operator is notified that the operation is erroneous, and there is no risk of supplying different oil types. Also, if the tank truck driver opens the lid of the lubrication port for lubrication, the key for unlocking the bottom valve operation handle of the specific tank containing the oil to be lubricated in this lubrication port is in hand. Since it can be put in, the key that the employee of the gas station or the driver of the tank truck must have is only the lock key that locks the oil filling port and the lid, and it is troublesome to find the key and multiple types It eliminates the hassle of having to keep the key of. Therefore, according to the device of the present invention, it is possible to always supply the predetermined oil in the tank truck to the predetermined lubrication port of the gas station. That is, the lock of the bottom valve operation handle of a predetermined oil type is unlocked with the key of the detachable member removed from the predetermined oil inlet, and when refueling is completed, the lock of the bottom valve operation handle is locked and the key is also locked. Return the attaching / detaching member attached to the locking / unlocking mechanism, and after confirming that it is the prescribed lubrication port, use the key of the detaching member in the applying / unlocking mechanism of the lubrication port to be refueled next. Since the lock of the bottom valve operation handle is unlocked, erroneous lubrication can be prevented from the viewpoint of work procedure. Therefore, as in the conventional case, the operator visually confirms and memorizes the display of the oil inlet and the bottom valve operation handle. In the present invention, a situation such as opening is not possible, and there is no risk of accidental refueling accident.

[Brief description of drawings]

Each of the drawings is an embodiment of the present invention, and FIG. 1 is a schematic view of an oil supply port installed in an oil tank of a gas station.
FIG. 2 is a perspective view showing the unlocked state of the unlocking mechanism, FIG. 2 is a perspective view showing the unlocked state of the same, and FIG. 3 is a locking / unlocking mechanism that locks the locking / unlocking mechanism by mounting different types of detachable members. It is a front view which shows the state which cannot be performed. FIG. 4 is a perspective view of a bottom valve operation handle formed on the floor of the tank / lorry top surface, FIG. 5 is a side view showing the connection between the tank / lorry and the fueling port of the gas station, and FIG. 6 is It is a perspective view of the rear end part of a tank truck. 1 ... Tank / lorry, 2 ... Bottom valve operation handle 3 ... Supply pipe, 4 ... Oil supply hose 5 ... Lubrication port, 6 ... Locking / unlocking mechanism 7 ... Lid, 8 ... Padlock 9 ... Fixing member, 9c ... Engagement hole 10 ... Detachable member, 10a ... Leg 12 ... Key, 13 ... Lock fixing metal fitting 17 ... Lock

Claims (1)

[Scope of utility model registration request] Claims: 1. A specified oil, which is separately loaded in the tank of the tank / lorry, is supplied to a gasoline / fuel tank through an oil supply hose from an oil supply pipe led to the rear end or side of the tank / lorry.
In an oil supply device for supplying oil to a corresponding oil filling port of a stand, a connecting member projecting from an outer peripheral surface of the oil filling port and a connecting member vertically provided on an outer peripheral surface of a lid of the oil filling port. Locking member, a mounting portion mounted on the outer peripheral surface of the lubrication port, a tongue protruding outward from the mounting portion, and a plurality of engagements formed on the tongue. A leg member that is fitted between the fixing member having a hole, the outer peripheral surface of the oil filling port and the engaging member of the lid, and extends across the connecting member to engage with the engaging hole. And a detachable member that can be detached from the oil inlet when the lid is opened, and oil types in a plurality of bottom valve operation handles that are attached to the detachable member and that are formed on the tank upper surface floor of the tank / lorry. A key for unlocking only the lock of the matched handle, An engaging position between the hole and the leg portion of the detachable member is made different for each fixing member, and one fixing member and a leg portion capable of engaging with the engaging hole of the fixing member at the engaging position are provided. A device for preventing accidental oil supply to an oil storage tank, characterized in that a pair of locking / unlocking mechanism is configured with one detachable member.