JP2003231599A - Apparatus for preventing oil mixture in unloading by lorry - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for preventing oil mixture in unloading which can be attached to any type of lorries and prevents a pouring port fitting with a lorry hose from being connected to a subsequent system before connection with one system is not completed, thereby preventing the oil mixture. <P>SOLUTION: A lorry fitting 9a includes a pouring port side unlocking means 10. A valve unlocking means 14 can be removed at a liquid pouring port 12 by setting the unlocking means 10 on a liquid pouring port side locking device 13 on which the unlocking means 10 and the unlocking means 14 can be set. A valve lock means set on the valve locking device can be removed only when types of liquids coincide with each other at the valve locking device provided on a valve on a valve control section by setting the unlocking means 14 removed from the locking device 13 with the unlocking means 10 set. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tank lorry vehicle for a liquid such as oil and the like, and a top loading type tank lorry vehicle in which a valve is provided in an upper portion of the tank, and a bottom in which a valve is provided in a lower side surface of the tank. The present invention relates to a device for preventing mixed liquid at the time of unloading, which can be mounted on both loading tank lorry vehicles and tank lorry vehicles with air-operated bottom valves.

[0002]

2. Description of the Related Art As a liquid mixture prevention device for unloading a liquid such as oil, for example, Japanese Patent No. 3025683 discloses only a hatch key of a corresponding liquid type among hatch keys different for each liquid type. Operate the liquid injection port key storage device for storing the key for each liquid injection port that is lockable and provided at each liquid ejection port of the liquid transport vehicle with the hatch key, and It is described that the key for unlocking the injection port of the injection of the corresponding liquid type can be taken out.

Further, in Japanese Patent Laid-Open No. 2000-309399, a bottom valve lock device for controlling the operation of the operation handle of the bottom valve for unloading and a lock release key for the inlet metal fitting lock are housed and some lock is released. The other unlocking key cannot be removed while the key is removed, and if the removed unlocking key is to be stored, it cannot be stored unless the lock key that locks the bottom valve lock device is used. A liquid mixture prevention device including a liquid type key storage device having a configuration is described.

A method of controlling a valve with a microcomputer has also been proposed.

[0005]

Since the liquid mixture prevention apparatus described in the above publications can be mounted only on a truck of a top loading type, unloading by a truck of a bottom loading type and an air type bottom valve type is not possible.
It was very dangerous because it was likely to cause a mixed solution.

Further, when the liquid mixture prevention by microcomputer control is adopted, a considerable cost is required for the modification of the lorry vehicle and the burden of the lorry company is large.

[0007] All the liquid inlet fittings and the bottom valve valve can be unlocked by key operation, without worrying about the trouble of going up and down to the tank of the tank truck.
It was difficult to completely prevent the liquid mixture.

Therefore, the present invention can be attached to any of the top loading type, bottom loading type and air type bottom valve type lorry vehicles to prevent liquid mixture and to connect the lorry hose and the liquid inlet fitting. (EN) Provided is a mixed solution preventing device at the time of unloading, which prevents a mixed solution from being connected to the next system unless the connection of one system is completed.

[0009]

DISCLOSURE OF THE INVENTION The present invention relates to a mixed liquid for unloading by jointing the tank metal fittings of the tank truck hose of the tank truck and the liquid injection port of the tank and opening the operation portion of the valve of the tank truck. In the prevention device, the lorry metal fitting is provided with a liquid inlet side locking device releasing means, and a liquid inlet side locking device capable of setting the liquid inlet side locking device releasing means and the valve lock device releasing means to the liquid inlet. The injection port side locking device is provided, and the valve lock device releasing means set in the injection port side locking device can be taken out by setting the injection port side locking device releasing means. Is provided with a valve lock device for regulating valve opening operation and a valve lock device release device which can be set. The valve lock device locks the inlet side. By setting the valve lock device releasing means taken out from the injection port side locking device by setting the device releasing means, the valve lock device is set in the valve lock device only when the liquid types of the valve lock device and the valve lock device releasing means match. It is characterized in that it is possible to take out the valve block means.

The valve lock means sets the key for the liquid injection lock for unlocking the liquid injection lock that locks the liquid injection cap for each liquid type. The key for liquid injection lock that was taken out to open the cap at the time of jointing the hose metal fittings and the liquid injection port of the tank, was inserted into the valve lock device extracted from the valve lock device, and transferred to the liquid type lock storage device. Can be returned.

Further, the liquid injection port side lock device releasing means is connected to the lorry metal fitting by a wire, and the length of the wire is inserted into the liquid injection port side locking device release device of the liquid injection port side locking device of the next liquid injection port. The length can be set so that the liquid injection port side lock device releasing means does not reach the mouth.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, for example, when a lock key is used as the valve lock means, a lorry key is used as the liquid injection port side lock device releasing means, and a liquid type key is used as the valve lock device releasing means, the liquid is unloaded. When starting the operation, a valve lock device is used that restricts the valve operation so that the liquid key and the lock key for locking the valve do not match the liquid type. The valve lock device is installed in the valve operation part, and is attached to the discharge valve of the bottom loading type truck, the control panel of the centralized bottom valve or the air type bottom valve type valve, the top loading type bottom valve handle and the like.

After the loading is completed, the lock key is inserted into the valve lock device to disable the valve operation. At the time of unloading, the lorry key is inserted into the injection port side locking device and the liquid type key is pulled out to remove the liquid type. The lock key can be removed by inserting the key into the valve lock device.At that time, if the liquid types of the lock key, lorry key, and liquid type key do not match, the lock key, lorry key, and liquid type key can be removed. Without the valve operation, it prevents the mixture.

[0014]

EXAMPLES Example 1 This example is an example of bottom loading. Figure 1 (a)
[Fig. 3] is a schematic view of a discharge valve of a lorry vehicle, and (b) and (c) are explanatory views of a mutual lock system of a lock key and a liquid type key.

In FIG. 1 (a), a discharge valve is arranged at the bottom of a lorry, a discharge valve handle 1 is arranged as an operating portion of the discharge valve, and the valve is opened / closed by operating the handle. A valve block device 3 is provided on the discharge valve handle 1.

The valve lock device 2 is provided with an insertion port 3a for a lock key 5 which is a valve lock device and an insertion port 3b for a liquid type key 14 (FIG. 3) which is a valve lock device releasing device which will be described later. The lock key 5 is different for each liquid type, and when set in the valve lock device 3, the lock key 5 cannot be extracted as it is, and can be extracted only by inserting the liquid type key 14 having the same liquid type. There is. The inserted liquid type key 14 is of a mutual lock type so that it cannot be taken out unless the lock key 5 is inserted.

The mutual lock structure is as shown in FIG. 1B, in which the lock key 5 inserted into the insertion port 3a of the lock key 5 has a lock recess 5a formed at the tip thereof.
The lock key lock body 3d biased toward the lock recess 5a by the spring 3c enters the lock recess 5a, and the lock key 5 is locked and cannot be removed.

In FIG. 1 (c), a locking recess 14a is formed at the tip of the liquid type key 14 inserted into the insertion port 3b of the liquid type key 14, and a locking recess 14a is formed in the locking recess 14a by a spring 3e. The liquid type key lock body 3f biased to the side enters and the liquid type key 14 is locked and cannot be removed.

The tip of the liquid type key 14 is formed into a fork, and the lock key 5 is inserted between the two forks. By pressing the liquid type key 14 in the state of FIG. Lock key Lock body 3d is pushed and lock recess 5a
It is possible to remove the lock key 5 after removing the lock key 5.

In the state of FIG. 1 (c), the lock key 5
When the key is inserted, the tip of the lock key 5 passes through the fork of the liquid type key 14 and pushes the liquid type key lock body 3f to remove it from the locking recess 14a, and the liquid type key 14 can be removed.

FIG. 2 is a schematic view of a liquid type lock storage device and a liquid type lock storage device set mount. A liquid type lock storage device set mount 6 is installed in the lorry vehicle. The driver sets the liquid type lock storage device 7 in which the liquid injection lock key for unlocking the liquid injection lock such as a padlock for each liquid type is stored on the liquid type lock storage device set base 6, As shown in FIG. 2 (b), the liquid type lock storage device 7 is slid to remove the liquid injection lock key 8 for opening the liquid injection cap of the liquid type to be unloaded. The liquid type lock storage device 9 cannot remove the liquid injection lock key 8 unless it is set on the liquid type lock storage device set base 6.

When the liquid injection lock key 8 is removed from the liquid type lock storage device 7, it cannot be returned to the liquid type lock storage device 7 as it is, and the liquid injection lock key 8 is extracted. In the state, the liquid type lock storage device 7 cannot be operated at all. In order to operate the liquid type lock storage device 7, the removed lock key 5 is inserted into the lock key insertion port 7a of the liquid type lock storage device 7 and the liquid injection lock key 8 is returned to the liquid type lock storage device 7 By making it slidable, the other liquid injection lock key 8 can be taken out.

As the liquid type lock storage device 7, the key slider device described in Japanese Patent Laid-Open No. 2000-309399 can be used.

FIG. 3 (a) is a view showing a connecting portion between the lorry hose and the lorry fitting on the liquid supply station side.

The lorry key 10 is connected to the lorry metal fitting 9a of the lorry hose 9 by a connecting member, for example, a wire 11. A liquid injection port side locking device 13 is attached to the liquid injection port 12 of the liquid injection port fitting of the liquid supply station. As the liquid injection port side locking device 13, for example, a handle locking device described in Japanese Patent Publication No. 3-60760 can be used.

The liquid inlet side locking device 13 is provided with an insertion port 13a for the lorry key 10 and an insertion port 13b for the liquid type key 14, and the slider 13c serves as the lorry key 1.
The liquid type key 14 can be taken out by sliding when 0 is inserted.

When the lorry key 10 is inserted into the injection port side locking device 13 and the liquid type key 14 is pulled out,
The inserted lorry key 10 cannot be removed. Therefore, it is possible to confirm the connection between the lorry metal fitting 9a and the liquid injection port 12 in which the liquid types match.

The wire 11 for connecting the lorry key 10 is set to a length such that the lorry key 10 does not reach the lorry key insertion port 13a of the liquid inlet side locking device 13 of the next liquid inlet, and the lorry key should be used. You can prevent it from being inserted incorrectly.

Next, the operation procedure will be described.

(1) In FIG. 1, after the loading on each hatch is completed, the lock key 5 of the corresponding liquid type is set in the lock key insertion port 3a of the valve lock device 3. For example, a regular lock key R is set in the valve lock device 3 connected to a hatch loaded with regulars. When the lock keys 5 are set, the lock keys 5 of the respective handles 1 become an obstacle and the valves cannot be operated.

(2) In FIG. 2, when the lorry vehicle starts the unloading work at the liquid supply station, the liquid type lock storage device 7 is set on the liquid type lock storage device set base 6 installed in the lorry vehicle. The key 8 for the liquid injection lock of the relevant liquid type to be unloaded is pulled out, and the relevant liquid injection cap is unlocked.

For example, when unloading a regular product,
Liquid type lock storage device 7 to regular liquid injection lock key 8
, And open the injection port cap of the regular tank at the liquid supply station.

The liquid type lock storage device 9 cannot be operated unless it is set on the liquid type lock storage device set base 6.
The liquid injection lock key 8 cannot be returned to the liquid type lock storage device 9 when it is removed from the liquid type lock storage device 7, and cannot be returned to the liquid type lock storage device 9 when it is extracted. Since the storage device 9 cannot be operated, the other keys for the liquid injection lock cannot be removed and the next unloading work cannot be performed.
Mixing liquids can be prevented because other liquids cannot be unloaded.

(3) In FIG. 3, after the cap of the liquid injection port 12 is opened with the liquid injection lock key 8, the lory metal fitting 9a of the lowry hose 9 is jointed to the liquid injection hole 12 and the wire is attached to the lowry metal fitting 9a. When the lorry key 10 connected by 11 is inserted into the lorry key insertion port 13a of the liquid inlet side locking device 13, the slider 13c becomes slidable, and the liquid type key 14 is pulled out by sliding the slider 13c. For example, after joining a regular lowry metal fitting 9a to the regular liquid injection port 12, insert the lowry key 10 and slide the slider 13
When c is operated, the regular liquid type key 14 is removed.

The lorry key 10 is connected to the injection port side locking device 1
The liquid type key 14 cannot be pulled out unless it is inserted into 3. By pulling out the liquid type key 14 from the liquid injection port side locking device 13, the inserted lorry key 10 cannot be pulled out.

(4) In FIG. 4, the liquid type key 14 extracted from the liquid inlet side locking device 13 is inserted into the liquid type key insertion port 3b of the liquid type for unloading the valve lock device 3 and the lock key 5 is inserted. When the valve is removed, the valve handle 1 can be operated.

The lock key 5 set in the valve lock device 3 can be withdrawn only when the liquid type is the same as the liquid type key 14, and cannot be extracted with a combination of different liquid types, so the valve cannot be operated. Next, it is possible to prevent liquid mixture.

(5) By the work up to this point, the jointed liquid injection port 12 and the tank truck are connected by the same liquid type, and the first unloading is started.

(6) When the unloading is completed or the next unloading is performed using the same hose, in FIG.
The lock key 5 removed from the liquid type lock storage device 7 is inserted into the lock key insertion port 7a of the liquid type lock storage device 7, and the liquid injection lock key 8 is returned to the liquid type lock storage device 7.

(7) In FIG. 4, the lock key 5 is inserted into the valve lock device 13, the liquid type key 14 is removed from the valve lock device 3, and in FIG. 13c is operated to pull out the lorry key 10, and the lorry metal fitting 9a and the injection port 1
Remove the 2nd joint.

The lock key 5 used for returning the liquid injection lock key 8 to the liquid type lock storage device is stored by the operator until the next loading.

When carrying out the second unloading work, (2)
Repeat the procedure from to perform the unloading work.

Embodiment 2 This embodiment is an example of the case of top loading. Figure 7
[Fig. 3] is a schematic view of a valve operating portion on an upper part of a lorry vehicle.

A valve lock device 16 is provided on the bottom valve handle 15 for operating the bottom valve on the upper part of the lorry. The valve lock device 16 has the same structure as that of the bottom loading type valve lock device 3, and the valve lock device 16 is provided with an insertion port 16a for the lock key 5 and an insertion port 16b for the liquid type key 14 (FIG. 3). ing.

The lock key 5 is different for each liquid type, and when set in the valve lock device 16, the lock key 5 cannot be removed as it is, and can be removed only when the liquid type key 14 and the liquid type are the same. .

The bottom valve handle 15 is provided with a valve handle cover 17 that can be opened and closed, and the valve can be operated by opening the valve handle cover 17. When the lock key 5 is inserted into the insertion port 16a, the lock key 5 becomes an obstacle and the valve handle cover 17 cannot be opened, so that the bottom valve handle cannot be operated.

Next, the operation procedure will be described.

(1) In FIG. 7, after the loading in each hatch is completed, the lock key 5 of the corresponding liquid type is set in the valve lock device 16. For example, the lock key 5 for a regular is set on the valve lock device 16 connected to the hatch loaded with the regular. When the lock key 5 is set, the bottom valve handle 15 cannot be operated because the lock key 5 becomes an obstacle.

(2) When the lorry vehicle starts the unloading work at the liquid supply station, as shown in FIG. 2, the liquid injection lock key 8 is removed from the liquid type lock storage device 7, and the liquid injection cap is provided. The unlocking operation is performed in the same manner as (2) in the case of the bottom loading described above.

(3) As shown in FIG. 3, the lorry key 1
The operation of pulling out the liquid type key 14 by inserting 0 into the slot 13a of the lorry key of the liquid inlet side locking device 13 and operating the slider 13c is performed in the same manner as (3) in the case of the bottom loading described above. .

(4) As shown in FIG. 8, the liquid type key 14 extracted from the liquid inlet side locking device 13 is inserted into the liquid type key insertion port 16b of the corresponding valve lock device 16 and the lock key 5 is extracted, Bottom valve handle cover 17
Open and operate the bottom valve handle 17.

The lock key 5 set in the valve lock device 16 cannot be removed if the liquid type key 14 and the liquid type are different from each other, and can be removed only when the liquid type key 14 and the liquid type are the same. is there.

(5) By the work up to this point, the jointed injection port and the Lori hatch are connected by the same liquid type, and the first unloading is started.

(6) When the unloading is completed or the next unloading is performed using the same hose, the liquid type key 14 is removed from the valve lock device 16 by the same operation as (6) in the case of the bottom loading described above. It returns to the liquid injection side lock device 12, the slider 13c is operated, the lowry key 10 is pulled out, and the joint of the lowry metal fitting 9a and the liquid injection port 12 is removed.

(7) In FIG. 6, the liquid type lock storage device 7
The lock key 5 pulled out from the lock key insertion port 7a is inserted into the lock key insertion port 7a, and the liquid injection lock key is returned to the liquid type lock storage device 7.

The lock key 5 used for returning the liquid injection lock key 8 to the liquid type lock storage device 7 is kept by the operator until it is used at the next loading. When carrying out the second unloading work, the procedure from (2) is repeated to carry out the unloading work.

Embodiment 3 FIG. 9 is a schematic view of an air operation panel of the air bottom valve type.

In FIG. 9, a valve lock device 19 is provided for each liquid type on an air operation panel 18 which is an operation portion of a valve. The valve lock device 19 is provided with an insertion port 19a for the lock key 5 and an insertion port 19b for the liquid type key 14 (FIG. 3). The lock key 5 is different for each liquid type, and when set in the valve lock device 19, the lock key 5 cannot be extracted as it is, and can be extracted only when the liquid type key 14 and the liquid type are the same.

Further, there is provided a tally insertion port 19c into which a tally 20 for operating the operation panel 18 is inserted.

The air control panel 18 is provided with a switch 18a and a lamp 21. When the valve lock device 19 is released, the switch 18 can be operated and the lamp 21 is turned on.

Next, the operation procedure will be described.

(1) In FIG. 9, after the loading in each hatch is completed, the lock key 5 of the corresponding liquid type is set in the valve lock device 19. For example, the lock key 5 for a regular is set on the valve lock device 19 connected to the hatch loaded with the regular. When the lock key 5 is set, the lock key 5 becomes an obstacle and the tally 20 cannot be inserted.

(2) The operation of withdrawing the liquid injection lock key 8 from the liquid type lock storage device 7 and opening the liquid injection cap is as follows.
The same procedure as (2) in the case of the bottom loading described above is performed.

(3) As shown in FIG. 3, the lorry key 1
The operation of pulling out the liquid type key 14 by inserting 0 into the slot 13a of the lorry key of the liquid inlet side locking device 13 and operating the slider 13c is performed in the same manner as (3) in the case of the bottom loading described above. .

(4) In FIG. 10, the liquid type key 14 extracted from the liquid inlet side locking device 13 is used as a hatch No. for unloading the valve lock device 19. Insert the liquid type key into the key insertion port 19b, pull out the lock key 5, and extract the tally 2
0 is inserted into the tally slot 19C, the tally 20 is inserted to enable the operation panel 18, the switch 18a is turned on, the valve is opened, and unloading is started.

(5) As a result of the work up to this point, the jointed liquid injection port and Lorry hatch are connected by the same liquid type, and the switch 18a is turned on to open the valve and start the first unloading.

The lock key 5 set in the valve lock device 19 cannot be pulled out if the liquid type key 14 and the liquid type are different from each other, and can be pulled out only when the liquid type key 14 and the liquid type are the same. is there.

(6) When unloading is completed or the next unloading is performed using the same hose, as shown in FIG. Take out the tally 20 and insert the lock key 5 into the valve lock device 19,
, The liquid type key 14 is returned to the corresponding liquid inlet side locking device 12, the slider 13c is operated to pull out the lorry key 10, and the joint between the lorry metal fitting 9a and the liquid inlet 12 is removed.

When carrying out the second unloading work, (2)
Repeat the procedure from to perform the unloading work.

[0070]

INDUSTRIAL APPLICABILITY The mixed liquid prevention apparatus of the present invention can be mounted on any of the trucks of top loading type, bottom loading type and air type bottom valve type, and is much safer than before when unloading. Improved.

In the liquid mixture prevention device of the present invention, if the liquid types of the lock key, the lorry key, and the liquid type key do not match, the respective keys cannot be extracted and the valve cannot be operated, so that the liquid mixture can be prevented. it can.

Further, since the liquid mixture prevention apparatus of the present invention is all mechanical, it can be provided at low cost, and the burden on the truck company is greatly reduced.

Furthermore, since the connection is always one system at a time and the two systems cannot be connected at the same time, there is no accident of liquid mixture due to a connection error or the like.

[Brief description of drawings]

1A is a schematic view of a discharge valve of a lorry vehicle, and FIGS. 1B and 1C are explanatory views of a mutual lock system of a lock key and a liquid type key.

FIG. 2 is a schematic view of a liquid-type lock storage device set rack for a liquid-type lock storage device and a lorry according to the present invention.

FIG. 3 is a view showing a connection between a truck hose and a truck metal fitting in the present invention.

FIG. 4 is a diagram showing removal of a lock key according to the first embodiment.

FIG. 5 is a view showing a state in which a joint between a truck metal fitting and a liquid injection port is removed in the first embodiment.

FIG. 6 is a diagram showing an operation of returning the liquid injection lock key to the liquid type lock storage device in the second embodiment.

FIG. 7 is a schematic diagram of a valve operating portion on an upper portion of a lorry according to the present invention.

FIG. 8 is a diagram of a lock key extracting operation in the second embodiment.

FIG. 9 is a schematic view of an air operation panel of an air type bottom valve system in the third embodiment.

FIG. 10 is an explanatory diagram of a procedure for making a valve operable in the third embodiment.

FIG. 11 is an explanatory diagram of a procedure for enabling a valve in the third embodiment.

[Explanation of symbols]

1: Discharge valve handle 3: Valve lock device 3
a: Lock key insertion port 3b: Liquid type key insertion port 3c: Spring 3d: Lock key lock body 3e: Spring 3f: Liquid type key lock body 5: Lock key 5a:
Lock recess 6: Liquid type lock storage device set stand 7:
Liquid type lock storage device 8: Liquid injection lock 9: Lowry hose
9a: Lowry metal fitting 10: Lowry key 11: Wire 12: Liquid injection port 13: Liquid injection port side locking device 13
a: slot for the lorry key 13b: slot for the liquid type key 13c: slider 14: liquid type key 14
a: Lock recess 15: Bottom valve handle 16: Valve lock device 17: Bottom valve handle cover 1
8: Air operation panel 18: Switch 19: Valve lock device 19a: Lock key insertion port 19b: Liquid type key insertion port 19c: Tally insertion port 20:
Tally 21: Lamp

Claims (3)

[Claims] 1. A mixed liquid prevention device for unloading by jointing a tank metal fitting of a tank truck hose of a tank truck and a liquid injection port of a tank, wherein an operation part of a valve of the tank truck is opened for unloading. A pouring side locking device releasing means is provided, and a pouring side locking device capable of setting the pouring side locking device releasing means and the valve locking device releasing means is provided at the pouring port, and the pouring side locking device is provided. The device allows the valve lock device releasing means set in the liquid inlet side locking device to be taken out by setting the liquid inlet side locking device releasing means, and restricts the opening operation of the valve in the operating portion of the valve. Is provided with a valve lock device capable of setting the valve lock device releasing means and the valve lock device releasing means. Of the valve lock device set in the valve lock device only when the liquid types of the valve lock device and the valve lock device release device are matched by the setting of the valve lock device release device taken out from the liquid injection port side locking device. A device for preventing liquid mixture when unloading a lorry, characterized by being able to be taken out. 2. A liquid type lock storage device for setting a liquid injection lock key for unlocking a liquid injection lock that locks a liquid injection cap for each liquid type from a liquid type lock storage device to a lorry car. Type of liquid by setting the valve lock means extracted from the valve lock device to the key for the liquid injection lock that was taken out to open the cap at the time of jointing the lowry metal fittings of the tank truck and the liquid injection port of the tank The mixed liquid prevention device at the time of unloading according to claim 1, wherein the device can be returned to the lock storage device. 3. The injection port side locking device releasing means is connected to the lorry metal fitting by a connecting member, and the connecting member has a length of the connecting member which releases the injection port side locking device of the injection port side locking device of the adjacent injection port. 2. The device for preventing liquid mixture at the time of unloading according to claim 1, wherein the device inlet has a length such that the liquid injection port side locking device releasing device does not reach the device inserting port.