JPH1061898A - Connection confirming device for communication pipe between tanks - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce an equipment cost and to simplify operation by a method wherein a display has a display part having the same number of bar codes as the number of tanks of a first tank group and other codes, and a single key hole. SOLUTION: Display of bar codes and other codes marked on the display part of a display 4 is effected to specify classification of at least a kind of liquid and the tanks 21-26 of a second tank group 2 and to confirm correction of a communication pipe 31, 32, 33, or 34 about to be connected by an operator. When an operator intends to bring liquid in one tank 22 of a second tank group 2 from one tank 12 of a first tank group 1, a key corresponding to the communication pipe 32 of the tank 12 is inserted in the key hole of the display 4 of the tank 22. In this case, a code is exposed to the outside. In which case, the exposed code is read by a discrimination conforming device and correction of coupling operation for a communication pipe is conformed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for confirming the connection of a communication pipe between tanks when loading or unloading a tank truck or the like.

[0002]

2. Description of the Related Art As a conventional connection confirmation device in a communication pipe between tanks of this type, there is a large and expensive distribution control system installed in a part of a loading / unloading station in a refinery, a chemical factory or the like. Although it can be done, equipment with low equipment cost and easy operation has not yet been used.

On the other hand, in loading and unloading operations, it is needless to say that an accident of mixing different kinds of liquids caused by an incorrect connection of a communication pipe such as a hose is dangerous, and that such an accident is surely prevented. Is desired.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a device for confirming a connection in a communication pipe between tanks, which is inexpensive and simple in operation. The device of the present invention
It is suitable for use in loading and unloading tank trucks.

[0005]

In order to achieve the above-mentioned object, a connection confirming device for a communication pipe between tanks according to the present invention comprises a first tank group from which a plurality of types of liquids are separately loaded and unloaded. A communication pipe between the tanks, each of which is connected to the base end of the communication pipe and the tip of each communication pipe is unloaded and removably connected to each of the second tank groups at the destination; each tank of the second tank group; A barcode or other code indicator; the indicator has a barcode or other code indicator as many as the number of tanks (n) in the first tank group, and has a single keyhole. The display has n shutters consisting of an outer concealed plate and a working arm extending inward from the concealed plate;
Each shutter is provided slidably with respect to the display, and is biased by a return spring so that the cover plate normally occupies a position covering the corresponding display unit; The keys are individually operated by different keys inserted into the same keyhole, and when each operating arm is operated, a bar code or other code applied to a corresponding display portion is exposed to the outside according to the opening displacement of the hidden plate. That the n keys are stored in correspondence with the respective communication pipes in the n tanks of the first tank group; and that the code identifies the type of liquid and the tank in the second tank group. The specified condition is that the reading process is performed by a separately prepared electrical discrimination and confirmation device in order to confirm the correctness of the communication pipe to be connected.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 shows a first tank group 1 and a second tank truck 20 in which the present invention can be implemented.
The mode of loading / unloading petroleum products, chemical products, and other liquids between the tank group 2 is shown. Although FIG. 2 shows a state of loading, the present invention can be applied to unloading.

Reference numerals 11 to 14 denote different kinds of petroleum products (high-octane gasoline, regular gasoline, light oil, kerosene).
The other liquids are individually stored in tanks, which constitute the first tank group 1 to be unloaded and unloaded.

[0008] Each of the tanks 11, 12, 13 of the unloading source
Or 14 has communicating pipes 31, 32, 3 such as hoses respectively.
3 or 34 are connected to each other, and each communication pipe 31, 3
The tip of 2, 33 or 34 can be detachably connected to tanks 21, 22, 23, 24, 25 or 26 constituting the second tank group 2 to be loaded / unloaded.

In the illustrated example (FIG. 1), the second tank group 2
The tanks 21 to 26 are provided on the tank truck 20. However, these tanks may be provided on a railway wagon.

In short, each tank 1 of the first tank group 1
1, 12, 13 or 14 and each tank 2 of the second tank group 2
1, 22, 23, 24, 25 or 26 and its communicating pipe 3
1, 32, 33 or 34, as shown by the dashed lines in FIG.

Of course, the respective tanks of the second tank group 2 are always loaded with the same type of liquid for a desired period, and it is extremely dangerous to mix other types of liquids, and it must be avoided at all times. is there.

By using the device according to the present invention,
An operator including a driver of a tank lorry or the like can prevent an erroneous operation in connecting the communication pipe between the first tank group 1 and the second tank group 2.

In FIG. 1, reference numeral 4 denotes a bar code or other code indicator provided in each of the tanks 21, 22,...
Communication pipes 31, 32, 33 in each tank of tank group 1
Or 34 indicates a key described below stored corresponding to 34.

Next, the display 4 will be described in detail with reference to FIGS. The indicator 4 attached to each of the second tank groups 2 has a box shape as a whole, and the back side is open.

On the outside of the display 4, display sections 41 to 44 on which bar codes and other codes 41a, 42a, 43a and 44a of the same number as the number (n) of tanks of the first tank group 1 can be applied. Are lined up.

The display portions 41 to 44 in the illustrated example are formed by windows 45 to 48 of the display main body 40 and concave portions 55 to 58 of the frame plate 5 fixed to the back of the front surface of the main body 40. At the bottom of 55 to 58, the code (code sheet) 41a is provided.
To 44a.

The display 4 further includes n display units 41 to 4
Four shutters 6 are provided. Each shutter 6
Is composed of a hidden plate 6a located on the outside and a working arm 6b fixedly extending inward from the hidden plate 6a, and is provided slidably in the vertical direction with respect to the display main body 40, for example.

A claw 6d is pivotally attached to the inner end of the working arm 6b of each shutter 6 via a mounting body 6c having a pivot. The nail pieces 6d are provided as needed.

The mounting member 6c is attached to the guide rod 6 fixed vertically in the display 4 in the vertical direction.
The working arms 6b are urged toward a normal position by a return spring 62 such as a compression spring fitted around the guide rod 61.

Reference numeral 63 denotes a receiving piece movably fitted to the guide rod 61, which is interposed between the lower part of the working arm 6b and the upper end of the return spring 62.

The display 4 has, for example, a single and common keyhole 49 on its upper surface, and a key guide frame 52 connected to the keyhole 49 is provided in the display 4 in the vertical direction (FIG. 4 or FIG. 4). FIG.
In the vertical direction).

Each of the above-mentioned shutters 6 is provided with a guide means comprising a guide rod 61 of a mounting body 6c on the shutter 6, a gap 51 between the display main body 40 and the frame plate 5, and a gap 51 between the display body 40 and the frame plate 5.
Guide means comprising a hidden plate 6a fitted into the
It is designed to be slid up and down. However, the guide means of the shutter 6 is not limited to the illustrated one, and can be arbitrarily designed.

When the shutter 6 and the claw piece 6d are moved up and down, they are released by slits 5a and 52a in the frame plate 5 and the key guide frame 52.

The bar codes and other codes 41a, 42a,... Provided on the display portions 41, 42,.
.. Are displayed to the outside by opening the corresponding shutter 6 to be described later, and at least specify the type of liquid and the type of the tanks 21 to 26 in the second tank group 2 (the type of the destination tank). This is for confirming whether the communication pipes 31, 32, 33 or 34 to be connected by the operator are correct before connection.

When the operator tries to fill the liquid from one tank (12) of the first tank group 1 to one tank (22) of the second tank group 2, the communication pipe (32) of the tank (12) is set in advance. ) Is inserted into the keyhole 49 of the indicator 4 of the tank (22). At this time, the hidden plate 6a of a certain shutter 6 moves in the direction of arrow Q to open, and the cord (42a) is exposed to the outside.

Here, the code (42a) exposed to the outside is read by a well-known electrical discriminating and confirming device (not shown) prepared separately, and the correctness of the connecting operation of the communicating pipe to be performed subsequently is confirmed.

The code (42a) indicates the correct type of liquid and the correct tank in the second tank group 2, and the operator visually or audibly receives the next through the display or speaker of the electronic discrimination confirmation device. Of the operation following the operation.

The above-mentioned electrical discrimination confirmation device is a known device comprising a reading means (a bar code reader or the like), a registration means, a storage means, a comparison means, a display means and the like.

The flat keys 71 to 74 shown in FIGS.
Are different from each other by the same number as the number (n) of tanks in the first tank group 1.

The keys 71 to 74 are necessary for the operation projection 75 provided at a different position in the width direction of the tip, an arbitrary number of escape grooves 76 provided in parallel with the operation projection 75, and the tip of the operation projection 75. It has an engagement hole 77 provided correspondingly.

As shown in FIG. 1, the keys 71 to 74 correspond to the communicating pipes 31 to 34 of the n tanks 11 to 14 of the first tank group 1 storing different kinds of liquids, respectively. It is kept. Each key may be stored in the vicinity of the corresponding communication pipe or may be detachably attached directly to the corresponding communication pipe for storage.

As shown in FIGS. 2, 3 and 7, if the second keyhole 72 is inserted into the keyhole 49 of the display 4 as shown by an arrow P, for example, the working arm 6b of one shutter 6 becomes a key. 72
2 is pushed downward in FIG. 2 against the return spring 62 by the action projection 75, and the hidden plate 6a of the shutter 6 exposes the window 4 to the outside.

In the operation of the second key 72, the escape groove 76 of the key 72 plays a role of releasing the operating arm 6b of the other shutter 6 to the downward movement of the key 72.

As described above, when one hidden plate 6a moves in the direction of arrow Q and, for example, the second code 42a (code display) is exposed, the code 42a is read by an electric discrimination confirmation device (not shown) and processed. Then, the correctness of connection between the communication pipe 32 intended to be connected and the tank 22 of the second tank group 2 is known in advance.

If the intended operation is correct, the communication pipe 32 is connected to the tank 22 as it is, and if the intended operation is incorrect, the operation is of course stopped.

A swingable claw 6d is pivotally attached to the working arm 6b of each shutter 6 in the illustrated example, and as shown in FIG. 6, a second key 72 inserted through a keyhole 49. When the corresponding working arm 6b is pushed downward, the claw piece 6
The protruding piece 6e provided at the distal end of the d is guided by the inclined edge of the slit 52a in the fixed guide frame 52, and the claw piece 6d swings clockwise in FIG. Is done.

As a result, the tip of the claw piece 6d is
And the claw piece 6d maintains the engaged state as shown by the chain line in FIG.

The return of the claw piece 6d to the original position is performed by pressing the lower side 6f of the claw piece 6d by the return spring 62 via the receiving piece 6f inserted through the guide rod 61.

Normally, the shutter 6 pushed by the key is
When the hand is released from the key, it returns to the original position by the urging force of the return spring 62.

If the shutter 6 is pushed back and not returned due to clogging of dust or deformation of the guide means, the claw piece 6d
When the key in the engaged state is pulled up through the engaging hole 77, both the shutter 6 and the claw piece 6d return to the original positions, so that the key can be removed at the upper position.

In the above-described operation example, the operation in the case where the communication pipe 32 of the tank 12 as an example in the first tank group 1 and the tank 22 as an example of the second tank group 2 are intended to be connected has been described. However, the same applies to other examples, and a description thereof will be omitted.

The indicator 4 described above can be fixed horizontally to the tanks 21, 22,. In this case, the keys 71, 72,... Are inserted in the horizontal direction.

As for the operation of the shutter 6 without the claw piece 6d and the keys 71 to 74 without the engagement hole 77, if the key is inserted into the key hole 49, the shutter 6 is pressed against the return spring 62. When the key 6 is pushed downward and the key is pulled out, the shutter 6 returns to the original position by the restoring force of the return spring 62.

[0044]

According to the above-described connection confirming device for the communication pipe between the tanks of the present invention, a plurality of types of liquids are separately loaded on a tank truck or the like regardless of the facility cost and the operation are simple. In this case, there is an effect that the mixing mistake of the different liquid can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is an overall schematic diagram showing an embodiment of a connection confirmation device in a communication pipe between tanks according to the present invention.

FIG. 2 is a front view of a code indicator which is a main part thereof.

FIG. 3 is a plan view thereof.

FIG. 4 is an enlarged partial rear view of the code indicator.

FIG. 5 is an enlarged partial cross-sectional plan view thereof.

FIG. 6 is an enlarged sectional view taken along line VI-VI in FIG. 4;

FIG. 7 is a plan view of a key used by being inserted into a keyhole of the code indicator, and (A) to (D) show four mutually different keys.

FIG. 8 is a common side view of the key shown in FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st tank group 11-14 tank 2 2nd tank group 21-26 Tank 31-34 Communication pipe 4 Display 41-44 Display part 48 Keyhole 6 Shutter 6a Hidden plate 6b Working arm 71-74 Key

Claims (1)

[Claims] 1. A base end of a communication pipe is connected to each of a first tank group from which plural kinds of liquids are separately loaded and unloaded, and a distal end of each communication pipe is connected to a second tank group to be unloaded. A communication pipe between the tanks which are detachably connected to each other; each tank of the second tank group is provided with a bar code or other code indicator; the indicator is the number of tanks of the first tank group (n ) Having the same number of bar code and other code displays and a single keyhole; the display comprises an outer concealed plate and a working arm extending inward from the concealed plate. N shutters are provided; each shutter is slidably mounted on the display, and is urged by a return spring so that its hidden plate normally occupies a position covering the corresponding display unit. Working arms of n shutters Are operated separately with different keys inserted into the same keyhole, and when each working arm is operated, the bar code and other codes on the corresponding display are exposed to the outside due to the opening displacement of the hidden plate. That the n keys are stored in correspondence with the respective communication pipes in the n tanks of the first tank group, and that the codes correspond to the types of liquid and the tanks in the second tank group. Communication between tanks, which must be read and processed by a separately prepared electrical discrimination confirmation device to confirm the correctness of the communication pipe to be connected. Connection confirmation device in pipe.