JP4276639B2 - Tank information reader - Google Patents

Description

  The present invention relates to a tank information reading device that reads tank information such as a liquid type, a tank number, a tank capacity, and a site name of a corresponding tank to be injected when unloading liquid fuels at a liquid supply station.

  When unloading liquid fuels, etc., it is necessary to grasp the tank information of the tank to be injected for unloading management or ensuring safety. Conventionally, as a method, a tank information storage member attached to the liquid inlet side There is known a method of reading tank information by setting a tank information on a tank information reading means attached to the liquid injection hose side. For example, Patent Document 1 discloses a liquid mixture preventing apparatus that reads liquid type information of a corresponding tank using a liquid type key as a tank information storage member and a liquid type sensor as a tank information reading unit to prevent liquid fuel from being mixed. Has been.

  FIG. 7 shows a schematic configuration of the liquid mixture preventing apparatus of Patent Document 1. The unloading of liquid fuels using this mixed liquid prevention device is performed according to the following procedure.

1. Unlock the pouring lock of the pouring port 1 on the underground tank side with the pouring lock unlocking key and open the pouring cap.

2. After the liquid injection hose 2 is connected to the liquid discharge port 3 on the lorry vehicle side, it is connected to the liquid injection port 1.

3. The liquid type key 4 of the corresponding liquid injection port provided on the liquid injection port 1 side is inserted into the liquid type sensor 5 provided on the liquid injection hose 2.

4). Liquid type data is transmitted from the liquid type sensor 5, and the liquid type data is received by the liquid type sensor receiver 6 and transmitted to the control unit 8 through the interface box 7.

5). In the control unit 8, the liquid type loaded in each hatch of the lorry vehicle is registered, and a hatch is selected for unloading by pressing the switch.

6). If the liquid type data sent from the liquid type sensor 5 and the liquid type selected by the control unit 8 match, the control unit 8 displays the unloading OK and the control valve of the corresponding hatch of the lorry vehicle. 9 is opened. If the liquid types do not match, the control valve 9 is not opened, and the control unit 8 issues a warning that unloading is not possible.

7. Unloading is started by opening the discharge valve 10 of the lorry vehicle.

  As described above, in the liquid mixture preventing apparatus shown in FIG. 7, if the liquid type data based on the liquid type key 4 of the corresponding injection port 1 does not match the liquid type selected by the control unit 8, unloading can be performed. Since this is not possible, it is an effective means for preventing mixed liquids.

  However, in such a conventional liquid mixture prevention device, the liquid type key is fixed to the liquid inlet (liquid inlet fitting) with a chain, the shape and installation height of the liquid inlet vary, and the mounting position is Since it is not constant, the length of the chain is provided so that the liquid type key can be securely inserted into the liquid type sensor attached to the injection hose. On the other hand, since a plurality of tanks are buried in the liquid supply station, and corresponding liquid injection ports are arranged in a row, two tanks corresponding to the two tanks should be unloaded at the same time. When a liquid hose is connected to each liquid injection port and the liquid type key is inserted into each liquid type sensor, especially when the connected liquid injection ports are next to each other, the lorry driver If the liquid type key of the adjacent liquid inlet is inserted, there is a risk of causing a mixed liquid accident.

  Thus, in the prior art, there is a risk that misreading of tank information may occur due to a mistake in setting the tank information storage member such as the liquid type key and the tank information reading means such as the liquid type sensor, thereby causing a liquid mixture accident or the like. There was a problem that there was.

Meanwhile, in Japanese Patent Application No. 2003-402202, the applicant of the present application uses a chain member that can move in only one direction in order to prevent a connection error between connectors in the transmission path of the liquid type data from the liquid type sensor. Proposed that. The chain member itself can be used to prevent the above-described mistakes in setting the liquid type key. However, when the chain member is made of metal, there is a risk of sparks coming into contact with the liquid inlet or the like. There is also danger of ignition, explosion, etc.
Japanese Patent No. 3180630

  A problem to be solved by the present invention is to set a tank information storage member such as a liquid type key of a corresponding liquid inlet for unloading to tank information reading means such as a liquid type sensor and read tank information. Is to prevent misreading of tank information due to wrong setting of the tank information storage member.

  Another problem is to prevent sparks from igniting, exploding, etc. due to impacts with piping or concrete.

  The tank information reading device according to the present invention is configured to read tank information by setting a tank information storage member attached to the liquid injection port side with a connector to tank information reading means attached to the liquid injection hose side. In the reading device, the connector includes a movement range restriction member that is formed of a material having no stretchability and flexibility and is movable only in a two-dimensional direction, and further, a proximal end side of the movement range restriction member Is attached to the liquid inlet side so that the movement range regulating member does not move toward another tank information reading means adjacent thereto.

  The tank information storage member can store tank information such as liquid type, tank No., tank capacity, site name, etc., and by setting this in the tank information reading means, the tank information can be read and mixed liquid prevention, etc. Used for control.

Examples of the movement range regulating member capable of moving only in the two-dimensional direction include a member in which plates are connected in a bellows shape so as to be foldable, and a chain member in which a plurality of link members are connected in a non-foldable manner. However, if the plates are simply connected in a bellows shape, it is very difficult to obtain a smooth rotation at the connection part, and the operability is inferior. In addition, the backlash of the connecting portion is large, and the durability is inferior, such as frequent maintenance. Further, in the case of a plate shape, even if the material is a metal, it is very vulnerable to bending in the lateral direction, and it is uneasy in strength and inferior in reliability to seek the movement restriction only in the two-dimensional direction. Accordingly, the present invention as the range of motion restricting member, it was decided to use a chain-like member.

Specifically, the movement range regulating member in the present invention is a chain-like member formed by connecting a cylindrical or rectangular tube- shaped link member with a pin so that it cannot be folded , and each link member can be rotated around the pin. by aligning the direction of each pin with a two-dimensional direction, that is, those with only movable in one plane. Further, the movement range regulating member in the present invention may be a roller chain .

  Examples of the material having no stretchability and flexibility that constitute the movement range regulating member include metals, hard plastics, and ceramics. The movement range regulating member is formed of an insulating material so that no spark is generated by contact with the liquid injection port or the like, or even if it is made of metal, it is contacted with the liquid injection port or the like. It is preferable to cover with an insulating member so that no spark is generated.

  The proximal end side of the movement range regulating member is attached to a member such as a liquid injection port or a wall or floor in the vicinity thereof. When directly attaching to the liquid injection port, it is preferable to attach the base end of the movement range regulating member so as to be slidable in the vertical direction with respect to the liquid injection port and to provide a stopper for preventing the base end from coming off. . Accordingly, even if the distance between the liquid injection port and the tank information reading means on the liquid injection hose side is changed, it can be easily handled. Further, when no liquid injection is performed, the movement range regulating member can be slid downward and stored in the liquid injection port side, so that the storage performance is improved and does not get in the way.

  Further, by providing a weight at the base end of the movement range regulating member, when the tank information storage member is removed from the tank information reading means, the movement range regulating member is automatically or extremely easily lowered by the weight of the weight. It can be slid and stored in the liquid inlet side.

  On the other hand, if the base end portion of the movement range regulating member is attached to another member in the vicinity of the liquid injection port, it is not affected by the shape or the like of the liquid injection port, so that the attachment is easy and convenience is improved.

  According to the present invention, the movement range regulating member, which is the main part of the connector for attaching the tank information storage member to the liquid inlet side, is prevented from moving toward another adjacent tank information reading means. It is prevented that the tank information storage member of the adjacent liquid injection port is inserted into the tank information reading means, and erroneous reading of tank information due to a wrong setting of the tank information storage member is prevented. Therefore, if the present invention is applied to, for example, a mixed liquid prevention device, there is no mixed liquid accident and it is safe.

  Also, by forming the movement range regulating member with an insulating material or covering it with an insulating member, there will be no sparks caused by impacts with piping, concrete, etc., thus avoiding the risk of ignition, explosion, etc. It is very safe.

  Embodiments of the present invention will be described below based on examples shown in the drawings.

  In the following embodiment, a liquid type key storing liquid type information is used as a tank information storage member, a liquid type sensor is used as a tank information reading means, and the liquid mixture prevention apparatus is applied.

  1A and 1B show a main part of a liquid mixture preventing apparatus according to a first embodiment of the present invention, in which FIG. 1A shows a state before an injection hose is connected to an injection port, and FIG. 1B shows an injection hose. This shows the state where the liquid type key is set to the liquid type sensor connected to the liquid inlet.

  In the same figure, the base end part of the movement range control member 11 is connected to the liquid inlet pipe 1a on the liquid inlet 1 side. Specifically, a support member 13 is fixed to the liquid injection pipe 1 a by a fixing band 12, and a base end portion of the movement range regulating member 11 is pivotally supported by the support member 13 by a pin 15. The liquid type key 4 is connected to the tip of the movement range regulating member 11 via a metal short chain 14. The movement range restricting member 11 and the short chain 14 are the connecting tool referred to in the present invention, and the movement range restricting member 11 is a main part thereof. The short chain 14 is used to facilitate operation when the liquid type key 4 is inserted into the liquid type sensor 5, and has a minimum length for that purpose. Further, if the movement range restricting member 11 is connected without using the short chain 14, the liquid hose is shaken during unloading or the liquid hose after unloading is shaken. At that time, the vibration may be directly transmitted to the liquid type key 4 and may come off from the liquid type sensor 5, so that it can freely move in a three-dimensional direction to a part of the connector, preferably the tip side as in the embodiment. It is preferable to provide a member such as a short chain.

  At the time of unloading, as shown in FIG. 1 (b), the liquid injection hose 2 is connected to the liquid injection port 1, and then the liquid type key 4 is inserted into the liquid type sensor 5 and set. As a result, the liquid type data of the corresponding liquid injection port 1 is read, and the read liquid type data is transmitted to the control unit as described above in the section of the background art and used for the control of liquid mixture prevention. .

  In this embodiment, the movement range regulating member 11 is a chain-like member formed by connecting a plurality of rectangular tube-shaped link members 11a made of hard plastic so as not to be folded by pins 11b, and each link member 11a is pinned. The pins 11b are arranged in a direction perpendicular to the paper surface in FIG. Further, as described above, the base end portion of the movement range regulating member 11 is also pivotally supported by the pin 15 in a direction perpendicular to the paper surface. With such a configuration, the movement range restricting member 11 can move only in the two-dimensional direction, that is, in the plane of the paper in FIG. 1, and cannot move toward another adjacent liquid injection port.

  Therefore, even if the unloading is performed simultaneously at the adjacent liquid inlet, the liquid type key of the corresponding liquid inlet cannot be set to the liquid type sensor on the other adjacent liquid inlet side. Occurrence of mixed liquid accidents due to incorrect insertion of seed keys can be prevented.

  In the present embodiment, since the movement range regulating member 11 is formed of hard plastic (insulating material), no spark is generated by contact with the liquid inlet pipe 1a, concrete, etc. Dangers such as explosions are also avoided.

  FIG. 2 shows a main part of a liquid mixture preventing apparatus according to a second embodiment of the present invention. In this embodiment, a metal roller chain is used as the movement range regulating member 11, and the base end portion thereof is pivotally supported on the liquid injection port 1 side (the liquid injection port pipe 1a) in the same manner as in the previous embodiment. Also in this embodiment, the movement range regulating member 11 can move only within the paper surface in FIG. 2, and cannot move toward another adjacent liquid injection port. Therefore, similarly to the previous embodiment, it is possible to prevent the occurrence of a liquid mixture accident due to an incorrect insertion of the liquid type key.

  Further, in this embodiment, the movement range regulating member 11 is covered with an insulating resin hose 16, and no spark is generated by contact with the liquid inlet pipe 1a, concrete, etc. Risk is also avoided.

  FIG. 3 shows a main part of a liquid mixture preventing apparatus according to a third embodiment of the present invention. In this embodiment, the movement range regulating member 11 is made of the same hard plastic as in the first embodiment, and the base end portion of the movement range regulating member 11 is connected to the injection port pipe 1a on the injection port 1 side. The holding member 17 fixed by the fixing band 12 is slidably mounted in the vertical direction. In addition, a stopper 11c and a weight 11d are provided at the base end portion of the movement range regulating member 11 to prevent it from coming off.

  Also in this embodiment, the movement range regulating member 11 can move only within the paper surface in FIG. 3, and cannot move toward another adjacent liquid injection port. Therefore, similarly to the previous embodiment, it is possible to prevent the occurrence of a liquid mixture accident due to an incorrect insertion of the liquid type key.

  Furthermore, in the present embodiment, when the liquid type key 4 is set in the liquid type sensor 5, the movement range regulating member 11 is slid according to the distance to the liquid type sensor 5 and can be set very easily. Can do. Further, after the liquid type key 4 is removed from the liquid type sensor 5, the movement range regulating member 11 is automatically or very easily slid downward by the dead weight of the weight 11d and stored in the liquid inlet 1 side. be able to.

  FIG. 4 shows a main part of the liquid mixture preventing apparatus according to the fourth embodiment of the present invention. In this embodiment, the movement range restriction member 11 is made of the same hard plastic as in the first embodiment, and the base end portion of the movement range restriction member 11 is supported on the fire barrier 18 near the liquid injection port 1. 19 is pivotally supported via 19.

  Also in this embodiment, the movement range restricting member 11 can move only within the paper surface in FIG. 4 and cannot move toward another adjacent liquid injection port. Therefore, similarly to the previous embodiment, it is possible to prevent the occurrence of a liquid mixture accident due to an incorrect insertion of the liquid type key.

  Furthermore, in the present embodiment, since the base end portion of the movement range regulating member 11 is attached to the fire wall 18, the attachment operation is not affected by the shape of the liquid injection port 1, and the attachment operation is easy. It can be carried out.

  In addition to the fire wall 18, the movement range regulating member 11 can be attached to the floor near the liquid injection port 1, other structures, or the like.

  FIG. 5 shows a main part of a liquid mixture preventing apparatus according to a fifth embodiment of the present invention. This embodiment is a modification of the first embodiment. In the first embodiment, the support member 13 that pivotally supports the base end of the movement range regulating member 11 is fixed to the liquid injection pipe 1a on the liquid injection port 1 side by the fixing band 12, but in this embodiment, the support member 13 is supported. 13 is integrally provided on the liquid inlet fitting 1b on the liquid inlet 1 side. The liquid inlet fitting 1b is detachably attached to the liquid inlet pipe 1a.

  Also in this embodiment, the same effects as in the first embodiment can be obtained. Furthermore, since the support member 13 that pivotally supports the base end portion of the movement range regulating member 11 is provided integrally with the liquid injection port 1 (the liquid injection port metal fitting 1b), it is not necessary to attach a fixed band or the like, and the movement range. The restriction member 11 can be easily attached to the liquid injection port 1 and is inexpensive.

  FIG. 6 shows a main part of the mixed liquid preventing apparatus according to the sixth embodiment of the present invention. This embodiment is a modification of the third embodiment. In the third embodiment, the holding member 17 that slidably holds the base end portion of the movement range regulating member 11 is fixed to the liquid inlet pipe 1a on the liquid inlet 1 side by the fixing band 12, but in this embodiment, The holding member 17 is provided integrally with the liquid inlet fitting 1b on the liquid inlet 1 side. Also in the present embodiment, the liquid inlet fitting 1b is detachably attached to the liquid inlet pipe 1a.

  Also in this embodiment, the same effects as in the third embodiment can be obtained. Furthermore, since the holding member 17 that holds the base end portion of the movement range regulating member 11 is provided integrally with the liquid injection port 1 (the liquid injection fitting 1b), it is not necessary to attach a fixed band or the like, and the movement range regulation is performed. The member 11 can be easily attached to the liquid injection port 1 and is inexpensive.

  The present invention includes a liquid mixture prevention device that prevents liquid mixture of liquid fuels by inserting the liquid type key of the corresponding injection port for unloading into the liquid type sensor and discriminating the liquid type, as well as an inventory management system, etc. Is available. That is, the information to be read is not limited to the liquid type, but a tank information storage member storing other tank information can be set in the tank information reading means to read the tank information.

The principal part of the liquid mixture prevention apparatus which concerns on 1st Example of this invention is shown, (a) is the state before connecting the liquid injection hose to the liquid injection port, (b) is the liquid injection hose at the liquid injection port. A state where the liquid type key is set to the liquid type sensor is shown. The principal part of the liquid mixture prevention apparatus which concerns on 2nd Example of this invention is shown. The principal part of the liquid mixture prevention apparatus which concerns on 3rd Example of this invention is shown. The principal part of the liquid mixture prevention apparatus which concerns on 4th Example of this invention is shown. The principal part of the liquid mixture prevention apparatus which concerns on 5th Example of this invention is shown. The principal part of the liquid mixture prevention apparatus which concerns on 6th Example of this invention is shown. The schematic structure of the conventional liquid mixture prevention apparatus is shown.

Explanation of symbols

1 Injection port 1a Injection port piping 1b Injection port bracket 2 Injection hose 3 Liquid discharge port 4 Liquid type key 5 Liquid type sensor 6 Liquid type sensor receiver 7 Interface box 8 Control unit 9 Control unit 10 Discharge valve 11 Movement range regulating member 11a Link member 11b Pin 11c Stopper 11d Weight 12 Fixed band 13 Support member 14 Short chain 15 Pin 16 Resin hose 17 Holding member 18 Fire barrier 19 Support member

Claims (7)

A tank information reading device that reads tank information by setting a tank information storage member attached to the liquid injection port side by a connector to a tank information reading means attached to the liquid injection hose side,
The connection tool includes a movement range restriction member that can move only in a two-dimensional direction, and further attaches a proximal end side of the movement range restriction member to the liquid injection port side, and the movement range restriction member is adjacent to the movement range restriction member. It does not move toward the tank information reading means ,
The movement range regulating member is a chain-like member formed by connecting a plurality of rectangular tube-shaped or cylindrical link members with pins, and each link member can be rotated around the pin and the direction of each pin can be changed. A tank information reader that can move only in a two-dimensional direction by aligning. A tank information reading device that reads tank information by setting a tank information storage member attached to the liquid injection port side by a connector to a tank information reading means attached to the liquid injection hose side,
  The connecting device includes a movement range restricting member made of a roller chain that can move only in a two-dimensional direction, and further, the base end side of the movement range restricting member is attached to the liquid injection side, A tank information reading device which prevents movement toward another adjacent tank information reading means.   The base end portion of the movement range regulating member is mounted so as to be slidable in the vertical direction with respect to the liquid injection port, and a stopper for preventing the movement range regulating member is provided at the base end portion of the movement range regulating member. The tank information reader according to 2.   The tank information reader according to claim 3, wherein a weight is provided at a proximal end portion of the movement range regulating member.   The tank information reader according to claim 1 or 2, wherein a base end portion of the movement range regulating member is attached to a member in the vicinity of the liquid injection port. The tank information reader according to any one of claims 1 to 5 , wherein the movement range regulating member is formed of an insulating material. Tank information reading apparatus according to any one of claims 1 to 5, the range of motion regulating member is covered with an insulating member.

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