JPH1077099A - Connection confirming device for communicating pipe between tanks - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection confirming device for a communicating pipe between tanks at a low price, and at the same time, facilitate the operation. SOLUTION: An indicator 4 for a code is provided on respective tanks of a second tank group 2, and the indicator 4 has a display window and a key hole, and a shutter plate and a code plate are slidably provided in the indicator 4, and at the same time, they are urged to the key hole. On the code plate, the same number of codes as the number of tanks of a first tank group 1, are provided, and keys K1-K4 which are made to correspond with communicating pipes 31-34 of the tanks of the first tank group 1, individually make the shutter plate displace to an open position, and at the same time, make the code plate displace so that a corresponding code may reach the position of the display window. Also, the code designates the kind of a liquid and the kind of a tank of the second tank group 2, and the right/wrong of a communicating pipe to be connected, is confirmed by an electric judging confirming device.

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.

[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 bar code or other code display; a display having a code display window and a keyhole; sliding a shutter plate in the display to selectively open the code display window by a matching window. The shutter plate is urged by a closing spring so that the normally closed position is maintained; the number of tanks of the first tank group (n) is provided behind the shutter plate in the display. As many bars as Slidably provided with a code plate having a row of cords or other cords; the code plate is biased by a return spring in the direction of the keyhole; The passage is exposed to the pressing piece provided on the shutter plate and the working piece provided directly and / or indirectly on the code plate; n different from each other inserted into the keyhole
Keys are individually stored in each of the communication pipes in the tanks of the first group of tanks; n keys, when inserted into the keyholes, release the shutter plate via the pressing piece. Displacing the code plate via the operation piece so that the corresponding code reaches the position of the code display window, and displacing the type of liquid and the type of tank in the second tank group. The specified condition is that the reading process is performed by a separately prepared electrical discriminating and confirming 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 an embodiment shown in the drawings. FIG. 1 shows an embodiment of loading and unloading of petroleum products, chemical products and other liquids between a first tank group 1 and a second tank group 2 of a tank truck 20 in which the present invention can be implemented. 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 is a communication pipe 31,
The connection can be selectively made by 32, 33 or 34 as shown by a chain line 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,
The operator including the driver of the tank lorry 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 on each of the tanks 21, 22,... Of the second tank group 2, and K1, K2, K
3, K4 is a communication pipe 3 in each tank of the first tank group 1.
The following keys are stored in association with 1, 32, 33 or 34.

Next, the display 4 will be described in detail with reference to FIGS. The main body 40 of the indicator 4 which is attached to each of the second tank groups 2 with a flange portion 42 by screws 91 or the like has a box shape as a whole, has a code display window 41 at a substantially central portion on the front side, and has one side surface. It has a single keyhole 43 on the side. Then, a screw 92 is attached to the display main body 40.
Alternatively, the base frame 50 and the back plate 60 are fixed by an adhesive means or the like.

In the space between the front plate of the display main body 40 and the base frame 50, a shutter plate 5 and a code plate 6 having a U-shaped cross section are slidable in the horizontal direction in order from the front. It is installed.

The movement of the shutter plate 5 and the code plate 6 in the horizontal direction (lateral direction) is performed by moving the inner wall or the base frame 5 of the display main body 40.
It is guided by a groove, a ridge, a long hole or the like provided at 0.
However, the guide means for moving the shutter plate 5 and the code plate 6 is not limited to the illustrated example, and may be arbitrarily designed.

As shown in FIGS. 2 and 5, the shutter plate 5 is normally (normally) biased by a compression coil spring or other closing spring 52 so as to maintain the closed position. The opening provided in the plate 5, that is, the matching window 51 is located at a position shifted from the code display window 41 of the display main body 40, and the code display window 41 is provided by the shutter plate 5.
Is closed.

In other words, the shutter plate 5 has the keyhole 43,
That is, it is urged toward the key slot. A closing spring 52 for this purpose is mounted in a compressed state between a spring receiver 53 provided on the base frame 50 and a spring receiver 54 provided below the shutter 5.

As shown in FIGS. 5 and 6, a central portion of the shutter plate 5 in the length direction (sliding direction) has a rectangular shape integrally provided rearward from the lower side of the shutter plate 5. A push piece 55 is provided.
4 inside.

On the other hand, on the front side of the code plate 6 provided on the back side of the shutter plate 5, the same number of bar codes and other codes (code sheets) 61 to 61 as the number of tanks (n) of the first tank group 1 are provided. 64 are provided in a row by sticking or the like.

The code plate 6 is urged by a return spring 65 toward the key hole 43 (key insertion hole). The inner wall 45 near the keyhole 43 in the display main body 40 plays a role of a stopper that regulates the range of movement of the code plate 6 and the shutter plate 5 in the biasing direction.

The structure of the portion related to the urging of the code plate 6 will be described in detail. As shown in FIGS. 5 and 6, a pin-shaped operating piece 66 protrudes inward from the back surface of the code plate 6, and the operating piece 66 is attached to each of the base frame 50 and the back plate 60 by a key. It passes through escape holes 50a and 60a provided along the insertion direction P of K.

The intermediate portion of the action piece 66 is
, And passes through the key insertion path 44 formed by the base frame 50 and the back plate 60, in other words, faces the insertion path 44.

On the other hand, one end of the back plate 60 has a pivot 7
A lever 7 pivoted at 1 is swingably provided, and a long hole 72 is provided at the other end of the lever 7, and the tip of the working piece 66 is loosely fitted in the long hole 72. The other end of the lever 7 is movably engaged with the action piece 66.

At the center of the lever 7, a pin-shaped spring hooking piece 73 serving also as another action piece with its tip protruding into the key insertion passage 44 is fixed. The spring hooking piece 73 is formed in an arc-shaped relief hole 60 provided in the back plate 60.
b.

A torsion coil spring 65 serving as a return spring for urging the code plate 6 in the direction of the keyhole 43 fits the coil portion on the pivot 71 and has one end thereof against the spring hook 73 of the lever 7 from behind. The other end is the display body 4
It is attached so that it fits the inner wall of No. 0.

The flat keys K1 to K4 shown in FIGS.
Are different from each other by the same number as the number (n) of tanks in the first tank group 1. Each of the keys K1 to K4 has an arbitrary number (two in the illustrated example) of grooves 81 in the width direction of each tip,
Grooves 81, 82 having a depth in the direction of insertion of each key K can selectively act as an action groove or a relief groove, respectively.

Although not shown, each key K and key hole 43
It is preferable to provide a ward that can prevent insertion due to the difference between the front and back of the key.

As shown in FIG. 1, the keys K1 to K4 correspond to the communication 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 clearly shown in FIG. 5, a bar code or other codes 61, 62, 6
3, 64 (represented by a two-dot chain line in the figure to facilitate discrimination) are arranged in a row in the sliding direction of the code plate 6, and one of the keys K is used as a key. When the code plate 6 is inserted into the hole 43, the code plate 6 is slid and displaced in four ranges according to the depth of the groove 81 or 82 (in the illustrated example, the displacement amount is 0).
Also forms one stage), one of codes 61 to 64
One of them is opposed to the code display window 41 of the display main body 40, and the shutter plate 5 is slid and displaced by a predetermined distance so that the matching window 51 matches the code display window 41 of the display main body 40. One of the codes will be exposed on the front of the display 4 as shown in FIG.

One of the exposed codes 61, 62, 63 or 64 designates at least the type of the liquid and the type of the tanks 21 to 26 in the second tank group 2 (the type of the destination tank). Is for confirming whether the communication pipes 31, 32, 33 or 34 are intended to be connected before connecting them.

One code exposed by the key K is a known electrical discrimination and confirmation device (not shown) prepared separately.
And confirms the correctness of the connecting operation of the communicating pipe to be continued.

That is, the code indicates the correct type of liquid and the correct tank in the second tank group 2, and the operator visually or audibly transmits the next information through the display or speaker of the electronic discrimination confirmation device. The correctness of the subsequent operation can be confirmed.

The above-mentioned electrical discriminating device is a known device comprising a reading means (a bar code reader or the like), a registering means, a storing means, a comparing means, a displaying means and the like.

As shown in FIGS. 2 to 7, when the second key K2 is inserted into the keyhole 43 of the display 4 as shown by an arrow P, a pressing piece of the shutter plate 5 is inserted in the key insertion path 44. 55 is pushed against the closing spring 52 by the key tip 83, and the shutter plate 5 pushed a predetermined distance is stopped by the stopper 50b provided on the base frame 50 or the like.

Here, since the matching window 51 of the shutter plate 5 matches the code display window 41 of the display main body 40, the shutter plate 5 occupies the open position.

At the same time, the second key K2 causes the operating piece 66 of the code plate 6 to return by the groove 81 acting as an operating groove.
5 is pushed in the distance regulated by the groove 81 against the corresponding second cord 62 on the code plate 6 which has been slid and displaced.
Is exposed through the code display window 41 (see FIG. 4).

Needless to say, the urging force of the return spring 65 against the action piece 66 is applied through the spring hook piece 73 and the lever 7 interposed between the two members 65, 66.

In the operation of inserting the second key K2, the groove 82 of the key K2 serves as an escape groove for allowing the spring hook 73 of the lever 7 to escape.

As shown in FIG. 4, for example, the second code 62
When the (code display) is exposed from the code display window 41 of the display 4, the code 62 is read by an electrical discrimination and confirmation device (not shown) to perform predetermined processing, and the communication pipe 32 and the second tank intended to be connected are connected. It is known in advance whether the connection with the tank 22 of the group 2 is correct or not.

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.

The shutter plate 5 and the code plate 6 pushed by the key K are returned to their original positions by the closing spring 52 and the return spring 65 if the key K is pulled out by hand.

In the above-described operation example, the key K2 is used to connect 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. Although the case has been described, since the other example using the key K1 or K2 conforms to the above operation,
The description thereof is omitted.

When the fourth key K4 is used, the operation of the code plate 6 is slightly different from the above-described example. That is,
In the key K4, the groove 81 functions as an escape groove for the operation piece 66 of the code plate 6, and the groove 82 functions as an operation groove for another operation piece 73 also serving as a spring hook of the lever 7.

Referring to FIG. 5, fourth key K4 is keyhole 43.
Is inserted into the work piece 66 of the code plate 6
Meanwhile, another operating piece 73 also serving as a spring hooking piece of the lever 7 is pushed by the shallow action groove 82 against the return spring 65, and the code plate 6 is moved by the action groove 82 of the key K4. It will be pushed deeply via the lever 7 and the action piece 66 which are largely rocked.

In short, the code plate 6 is pushed indirectly through another operating piece 73 and the lever 7.

Therefore, the farthest fourth display is displayed in the code display window 41.
Will appear. The opening action of the shutter plate 5 at this time is not different from the case of the second key K2.

The indicator 4 described above is placed sideways with respect to each of the tanks 21, 22,... Of the second tank group 2,
In other words, the keys are mounted so as to be inserted in the horizontal direction, but they may be mounted in the tanks 21, 22,... Vertically. In that case, the key K is inserted upward or downward.

[0049]

According to the above-described apparatus for confirming connection in the communication pipe between tanks according to 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 ease of operation. 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 side view thereof.

FIG. 4 is a front view of the code indicator with the key inserted.

FIG. 5 is an enlarged vertical sectional rear view of the code indicator taken along line VV in FIG. 3 (however, in this figure, a part of a base frame and a back plate are cut away).

FIG. 6 is an enlarged cross-sectional side view taken along the line VI-VI of FIG. 5;

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

FIG. 8 is a common end view of the four keys 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 Indicator 41 Code display window 43 Key hole 44 Insertion passage 5 Shutter plate 51 Fitting window 52 Closing spring 55 Push piece 6 Code Plates 61 to 64 Cord 65 Return spring 66 Working piece 73 Another working piece K1 to K4 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 provided with a code display window and a keyhole. A shutter plate slidably provided in the display for selectively opening the code display window by a matching window; the shutter plate is urged by a closing spring so as to maintain a normally closed position. That, on the back side of the shutter plate in the display, a code plate provided with rows of bar codes and other codes in the same number as the number of tanks (n) of the first tank group is slidably provided; The code plate is in the direction of the keyhole The pressing piece provided on the shutter plate and the action piece provided directly and / or indirectly on the code plate face the insertion path of the key continuous to the keyhole. N different keys to be inserted into the keyholes are stored in correspondence with the respective communication pipes in the tanks of the first tank group; n keys are each inserted into the keyholes; And displacing the shutter plate to the open position via the pressing piece and displacing the code plate via the operating piece so that the corresponding code reaches the position of the code display window; and the code is a type of liquid. And the designation of the tank in the second tank group, which is to be read and processed by a separately prepared electrical discrimination confirmation device to confirm the correctness of the communication pipe to be connected. The configuration conditions Connection confirmation device in communication pipe between tank.