JP2003254468A - Valve with electronic name plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a valve with an electronic name plate, which of makes a worker aware of the execution of valve opening writing operation at the time of opening/closing work. <P>SOLUTION: A valve rod 2 is provided with an operation cap 7 operated to rotate by an opening/closing operation handle capable of connecting and disconnecting. A detachable cover 10 for preventing nonfeasance is attached to the operation cap 7, and an electronic name plate 11 including an RFID tag is provided on an upper surface of the cover 10. <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 valve provided with an electronic nameplate, for example, an underground burying valve installed in a water pipe network or the like, a sluice valve or a gas valve.

[0002]

2. Description of the Related Art Conventionally, there are gate valves and butterfly valves as valves buried underground in, for example, a water pipe network, and most of them are opened and closed manually.

In some cases, these valves are provided with a metal nameplate, and the nameplate includes information about the valve (model, nominal diameter, rated pressure, manufacturing date, manufacturer, operating direction, etc.). Is attached, and it is attached to a place visible from the ground. However, in underground buried valves, it is often difficult to see the name plate because it is dark because it can be seen through a small operation port, and dirt and the like are attached to and dirty on the name plate.

As a countermeasure against the above, as shown in FIGS. 10 and 11, it is possible to read / write information without contacting the R
An electronic nameplate 51 having a built-in FID (Radio Frequency-IDentification) tag 50 is attached to the tip of an operation cap 53 attached to a valve rod 52. The RFID tag 50 has recorded therein information such as model, nominal diameter, rated pressure, date of manufacture, manufacturer, operating direction, valve opening, rotation speed, shutoff torque, and the like.

Further, in order to read or write the information recorded in the RFID tag 50, as shown in FIG.
2, a dedicated read / write device 54 was required.
The reading / writing device 54 includes an antenna 55 for transmitting / receiving information (data) to / from the RFID tag 50, a liquid crystal display 56 for displaying the transmitted / received information, and a keyboard for inputting the information. The operation unit 57 is included, and a reading circuit, a writing circuit, and an external communication circuit are provided inside.

The opening / closing operation of the valve 61 is performed in the following procedure. As shown in FIG. 12A, the worker inserts the antenna 55 of the reading / writing device 54 from the operation port to bring the antenna 55 close to the electronic name plate 51, and reads the information recorded in the RFID tag 50. At this time, the read information is displayed on the display device 56, whereby the operator recognizes the information such as the current valve opening degree.

Thereafter, as shown in FIG. 12 (b), the operator inserts a lower fitting portion 59 of the T-shaped opening / closing operation handle 58.
Is inserted from the operation port, fitted into the operation cap 53 of the valve 61, and the opening / closing operation handle 58 is turned. As a result, the valve rod 52 rotates integrally with the operation cap 53, and the valve body 60 is opened and closed. The operator opens and closes the valve element 60 to a desired opening degree, and then removes the opening / closing operation handle 58 from the operation cap 53.

As shown in FIG. 12 (c), the worker
The antenna 55 of the reading / writing device 54 is inserted from the operation port and brought close to the electronic name plate 51, and the valve opening degree after the opening / closing work is input from the operation unit 57. As a result, the new valve opening is written (updated) in the RFID tag 50.

[0009]

However, in the above-mentioned conventional type, there is a possibility that the operator may inadvertently make a mistake in forgetting to write a new valve opening in the above procedure. In this case, the valve opening recorded in the RFID tag 50 and the actual valve opening differ from each other.

Further, there is a problem that a person who is not familiar with the above-mentioned regular operation procedures can inadvertently open / close the valve element 60 by using the opening / closing operation handle 58. In this way, when a person who is not familiar with the normal operation procedure ~ carelessly opens and closes the valve element 60, the operation of writing the new valve opening degree in the above procedure into the RFID tag 50 is not performed, and the same as above. The valve opening recorded in the RFID tag 50 and the actual valve opening differ from each other.

The present invention provides a valve provided with an electronic name plate that allows an operator, a person who does not know the proper operation procedure, to notice the execution of the valve opening writing operation. With the goal.

[0012]

In order to achieve the above object, the first invention is a valve provided with an RFID tag as an electronic nameplate capable of reading and writing information in a contactless manner. A detachable cover for preventing inaction is attached to an operation cap which is mounted and operated by an open / close operation device which can be connected and separated.

According to this, when opening and closing the valve,
The operator operates according to the following regular work procedure. Remove the cover from the operation cap. At this time, RFID
Read the tag information. The opening / closing operator is connected to the operation cap, the valve operator is rotated by operating the opening / closing operator, and then the opening / closing operator is separated from the operation cap. As a result, the valve body is opened and closed. Attach the cover to the operation cap. At this time, the valve opening degree by the opening / closing operation of the above procedure is written in the RFID tag.

Here, in the unlikely event that the operator accidentally forgets the above-mentioned regular work procedure (1), and carelessly connects the opening / closing operator to the operation cap with the cover still attached to the operation cap. However, the operation is interrupted because the opening / closing operation device cannot be connected to the operation cap by being blocked by the cover. As a result, the worker notices that the work procedure he is performing has an error, and confirms the proper work procedure before executing it. Therefore, the worker notices that he or she does not forget to write the valve opening, and it is possible to reduce the operator's careless mistake.

According to the second aspect of the present invention, the cover is provided with a warning means indicating that the valve opening is written in the electronic nameplate. According to this, when the cover is removed from the operation cap or attached to the operation cap, even if the operator or a person who is not familiar with the operation procedure sees the display of the warning means, the valve opening degree can be surely set. Notice the write operation.

According to the third aspect of the present invention, the electronic name plate is attached to the cover. According to this, when the operator removes the cover from the operation cap or attaches the cover to the operation cap, the operator can surely visually recognize the presence of the electronic nameplate together with the cover, and therefore, notice that the operation of writing the valve opening is performed. . This can reduce the operator's inadvertent mistakes.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described below with reference to FIGS.

As shown in FIGS. 1 and 2, reference numeral 1 is a soft seal sluice valve, and the valve element 3 is moved between a fully open position and a fully closed position by rotating the valve rod 2. A lid 5 and a shaft sealing portion 6 are provided on an upper portion of the valve box 4, and an operation cap 7 is attached to an upper end of the valve rod 2. The operation cap 7 is formed in a pyramid shape having a quadrangular shape in plan view and four side surfaces, and as shown in FIG. 4C, a T-shaped opening / closing operation handle 8 (an example of an opening / closing operation device) that can be connected and separated. It is operated by rotation.

That is, the opening / closing operation handle 8 has a lower fitting portion 9 at a lower end portion thereof which can be fitted into the operation cap 7.
Is equipped with. The lower fitting portion 9 has a square hole formed in a pyramid shape having the same shape as the operation cap 7. By fitting the lower fitting portion 9 into the operation cap 7 from above, the opening / closing operation handle 8 is connected to the operation cap 7.
By rotating the opening / closing operation handle 8 in this state, the valve rod 2 is rotated integrally with the operation cap 7, and the valve body 3 is opened / closed.

Further, as shown in FIGS. 1 and 2, the operation cap 7 has a removable cover 10 for preventing random operation.
Is installed. The cover 10 includes a tubular body 10a having a conical outer shape and a disc-shaped top plate portion 10b that closes the upper end of the body 10a, and has a conical shape into which the operation cap 7 is fitted. It has a fitting hole 10c.

An electronic name plate 11 is provided at the center of the top surface of the top plate portion 10b of the cover 10. An RFID tag 12 capable of reading and writing information in a contactless manner is built in the electronic nameplate 11. RF above
There are an electromagnetic coupling method, an electromagnetic induction method, a microwave method, an optical method, and the like as methods of the ID tag 12, and the electromagnetic induction method is adopted in the present embodiment. Also, RFID tag 1
The information required for the nameplate is the model, nominal diameter,
In addition to recording rated pressure, date of manufacture, manufacturer, operating direction, other information such as valve opening, rotation speed, shut-off torque, etc. as unique information of the valve, front and rear pipe information and surrounding buried objects Information or past work history is also recorded as data.

The attachment / detachment of the cover 10 to / from the operation cap 7 is performed by an attachment / detachment operator 14 as shown in FIG. The attachment / detachment device 14 is inserted through a pair of openable / closable open / close arms 15, a connecting frame 16 connected between the upper ends of the open / close arms 15, and a boss portion 17 provided at the center of the connecting frame 16. In addition, a vertical shaft 18 that can move up and down with respect to the boss portion 17,
And a pair of vertically swingable links 20 connected between the lower part of the and the open / close arms 15.

The vertical shaft 18 has a closing-side stopper 23 for restricting an ascending / descending stroke of the vertical shaft 18 with respect to the boss 17 to a closed position S (see the solid line in FIG. 3) at which the opening / closing arms 15 are closed. Open position O where 15 opens
An open side stopper 24 is provided (see the phantom line in FIG. 3) for regulation. Further, both open / close arms 15 are provided with a lower engaging piece 21 that engages with the lower end of the cover 10 from below and an upper engaging piece 22 that engages with the upper end of the cover 10 from above at the closed position S. ing. Further, an antenna 26 that transmits and receives information (data) to and from the RFID tag 12 is provided at the lower end of the vertical shaft 18. At the upper end of the vertical shaft 18, a liquid crystal display 27 for displaying information transmitted and received via the antenna 26, an operation unit 28 including a keyboard for inputting information, and a handle 29 are provided. . A reading / writing device 30 that reads / writes information from / to the RFID tag 12 by the antenna 26, the display 27, and the operation unit 28.
(Reader / Writer) is configured. Further, the read / write device 30 has a built-in read circuit, write circuit, and external communication circuit.

The operation of the above structure will be described below.
When performing the opening / closing operation of the sluice valve 1, the operator operates according to the following regular work procedure.

As shown by the phantom line in FIG. 3, the worker
The vertical shaft 18 is pushed down against the boss 17 until the open-side stopper 24 of the attachment / detachment operator 14 contacts the upper end surface of the boss 17. As a result, both open / close arms 15 open to the open position O. With both the open / close arms 15 open as described above, the operator inserts the attachment / detachment operator 14 from the operation port toward the sluice valve 1 under the ground, as shown by a virtual line in FIG.

Next, as shown by the solid line in FIG. 3, the operator pulls up the vertical shaft 18 with respect to the boss 17 until the closing-side stopper 23 contacts the lower end surface of the boss 17. As a result, the open / close arms 15 are closed to the closed position S, the lower engagement piece 21 engages with the lower end of the cover 10 from below, and the upper engagement piece 22 engages with the upper end of the cover 10 from above. As a result, as shown by the solid line in FIG. 4A, the cover 10 is held by the attachment / detachment operator 14, and the antenna 26 approaches the electronic nameplate 11 and faces it.

When the operator performs a reading operation on the operation section 28 of the attachment / detachment operation device 14, electromagnetic waves are emitted from the antenna 26 toward the RFID tag 12, and electromagnetic induction is generated in a coil inside the RFID tag 12. Power is generated by the RFID tag 12
The information stored in is transmitted. In this way RFI
The information transmitted from the D tag 12 is received by the antenna 26 of the attachment / detachment operator 14 and displayed on the display 27. The operator visually recognizes the information displayed on the display 27 to grasp the valve opening degree and the like at the present time.

In the above state, the worker attaches / detaches the operation device 1
Lift up 4. As a result, as shown in FIG. 4B, the cover 10 is lifted together with the attachment / detachment operator 14 and is removed upward from the operation cap 7, and the operation cap 7 is exposed.

Thereafter, as shown in FIG. 4 (c), the operator inserts the opening / closing operation handle 8 from the operation port toward the sluice valve 1 and fits the lower fitting portion 9 into the operation cap 7, Turn the open / close operation handle 8. As a result, the operation cap 7
At the same time, the valve rod 2 rotates and the valve body 3 opens and closes. When the operator opens and closes to a predetermined opening, the operator lifts the opening / closing operation handle 8 and removes the lower fitting portion 9 from the operation cap 7 upward.

Thereafter, as shown by the solid line in FIG. 4D, the operator closes both open / close arms 15 of the attachment / detachment operator 14 to the closed position S and holds the cover 10 by the attachment / detachment operator 14. The attachment / detachment operation device 14 is inserted from the operation port toward the sluice valve 1, and the cover 10 is attached to the operation cap 7. In this state, when the operator performs a writing operation on the operation unit 28, the written information such as the valve opening degree is transmitted from the antenna 26 to the RFID tag 12 and recorded in the RFID tag 12. Thereby, the data of the valve opening degree at the previous operation is updated, and the valve opening degree at the latest operation (that is, the valve opening degree by the above operation) is recorded on the electronic name plate 11. Thereby, the valve opening recorded on the electronic name plate 11 and the actual valve opening match. After the writing operation is completed, the operator opens both the open / close arms 15 to the open position O as shown by the phantom line in FIG. 4D, and opens the lower engaging piece 21 and the upper engaging piece 22 from the cover 10. The work is finished by separating the two and lifting only the attaching / detaching operation device 14 from the operation port to the ground.

However, in the unlikely event that the operator accidentally forgets the above-mentioned regular work procedure, the cover 10
Is still attached to the operation cap 7, the lower fitting portion 9 of the opening / closing operation handle 8 is inadvertently attached to the operation cap 7
Even if you try to fit into the
Unable to mate and work is interrupted. This allows
The worker notices that there is an error in the work procedure he is performing, and confirms the proper work procedure before carrying out it. Therefore, the worker notices that he or she does not forget to write the valve opening, and it is possible to reduce the operator's careless mistake.

If the operator accidentally tries to fit the lower fitting portion 9 of the opening / closing operation handle 8 from above onto the cover 10 attached to the operation cap 7, the cover will be removed. While the outer shape of 10 is conical, the hole of the lower fitting portion 9 is formed as a pyramidal square hole, and therefore the outer shape of the cover 10 and the shape of the hole of the lower fitting portion 9 are different from each other. Will end up. As a result, even if the lower fitting portion 9 can be fitted to the cover 10, the cover 10 cannot be rotated by the opening / closing operation handle 8, and therefore, the operation cap 7 can be maintained with the cover 10 attached.
It is possible to prevent an erroneous operation such as rotating the.

In the first embodiment, as shown in FIG. 3, the attachment / detachment operator 14 is provided with the read / write device 30, but the attachment / detachment operator 14 and the read / write device 30 are separately provided. You may That is, as the second embodiment, FIG.
As shown in FIG. 3, the attachment / detachment operation device 35 does not include the antenna 26, the display device 27, and the operation portion 28, but has the handle 19 on the upper end of the vertical shaft 18. Further, as shown in FIG. 6B, a read / write device 36 is composed of an antenna 26, a display 27, and an operating section 28, separately from the attachment / detachment operator 35.

According to this, when the opening / closing operation of the sluice valve 1 is performed, the operator operates according to the following regular work procedure. As shown by the phantom line in FIG. 6A, the operator opens the opening / closing arms 15 of the attachment / detachment operator 35 to the open position O, and moves the attachment / detachment operator 35 from the operation port to the underground sluice valve 1. Insert toward.

Next, as shown by the solid line in FIG. 6A, the operator closes both open / close arms 15 to the closed position S to engage the lower engaging piece 21 with the lower end of the cover 10, and The upper engagement piece 22 is engaged with the upper end of the cover 10.

Thereafter, the operator lifts the attachment / detachment operator 35 in the above state. Thereby, the attachment / detachment operator 35
At the same time, the cover 10 is lifted and removed upward from the operation cap 7, and the operation cap 7 is exposed.

Then, as shown in FIG. 6 (b), the operator brings the antenna 26 of the read / write device 36 close to the electronic nameplate 11 of the cover 10 removed above on the ground, and operates the operating section 28. Perform a read operation on. As a result, the information recorded on the RFID tag 12 is displayed on the display 27, and the operator visually recognizes the information displayed on the display 27 to grasp the valve opening degree and the like at the present time.

Thereafter, as shown in FIG. 6C, the operator uses the opening / closing operation handle 8 to open / close the valve body 3 to a predetermined opening. Further, as shown in FIG. 6D, the worker is on the ground and operates the operation unit 2 of the read / write device 36.
8 is written to write information such as the valve opening after the opening / closing operation to the RFID tag 12.

As shown by the solid line in FIG. 6 (e), the operator inserts the attachment / detachment operator 35 from the operation port toward the sluice valve 1 while holding the cover 10 with the attachment / detachment operator 35. The cover 10 is attached to the operation cap 7. After mounting the cover 10, the operator opens both open / close arms 15 to the open position O as shown by a virtual line in FIG.
The lower engaging piece 21 and the upper engaging piece 22 are separated from the cover 10, and only the attaching / detaching operation device 14 is lifted to the ground from the operation port, and the work is completed.

According to this, the cover 10 removed from the operation cap 7 in the above operation procedure is attached / detached by the attachment / detachment device 3.
Electronic nameplate 1 as it is lifted to the ground by 5
1 is easily noticed by workers on the ground. As a result, the operator can surely visually recognize the presence of the electronic nameplate 11, and thus he / she must remember to read and write information such as valve opening. This can reduce the operator's inadvertent mistakes.

In the first and second embodiments, the electronic nameplate 11 is attached to the upper surface of the cover 10. However, the electronic nameplate 11 is not limited to the upper surface and may be attached to the outer peripheral surface or the inner surface of the cover 10. Good. Further, the mounting location of the electronic name plate 11 is not limited to the cover 10, but another location,
For example, the electronic nameplate 11 may be attached to the shaft sealing portion 6 (see FIG. 2), the operation cap 7, or the like.

In the third embodiment shown below, as shown in FIG. 7, a recess 40 is formed in the upper end surface of the operation cap 7, and the electronic name plate 11 is fitted and mounted in the recess 40. In addition, on the upper surface of the top plate portion 10b of the cover 10,
A warning plate 41 (an example of warning means) indicating that reading and writing of the valve opening degree is performed is attached to the electronic name plate 11. The warning plate 41 includes a warning statement, for example, "read / write valve opening to / from electronic name plate during opening / closing work".

According to this, when the opening / closing operation of the sluice valve 1 is performed, the operator operates according to the following regular work procedure. As shown by the phantom line in FIG. 8A, the operator opens the opening / closing arms 15 of the attachment / detachment operation device 35 to the open position O, and moves the attachment / detachment operation device 35 from the operation port to the underground sluice valve 1. Insert toward.

Next, the operator closes both open / close arms 15 to the closed position S to engage the lower engagement piece 21 with the lower end of the cover 10 as shown by the solid line in FIG. The upper engagement piece 22 is engaged with the upper end of the cover 10.

Thereafter, the operator lifts the attachment / detachment operation device 35 in the above state. Thereby, the attachment / detachment operator 35
At the same time, the cover 10 is lifted and removed upward from the operation cap 7, and the operation cap 7 is exposed. On this occasion,
The operator looks at the warning plate 41 of the removed cover 10 and confirms that the information such as the valve opening degree is read / written.

Then, as shown in FIG. 8B, the operator inserts the antenna 26 of the read / write device 36 from the operation port to bring the antenna 26 close to the electronic name plate 11 and reads it on the operation section 28. Do the operation. As a result, the RFID tag 12
The information recorded on the display 27 is displayed on the display 27, and the operator visually recognizes the information displayed on the display 27 to grasp the valve opening and the like at the present time.

Thereafter, as shown in FIG. 8C, the operator uses the opening / closing operation handle 8 to open / close the valve body 3 to a predetermined opening. Next, as shown in FIG. 8D, the operator inserts the antenna 26 of the reading / writing device 36 through the operation port to bring the antenna 26 close to the electronic nameplate 11, and performs the writing operation on the operation unit 28. Then, the information such as the valve opening degree after the above opening / closing operation is written in the RFID tag 12.

Next, as shown by the solid line in FIG. 8E, the operator holds the cover 10 with the attachment / detachment operator 35 and directs the attachment / detachment operator 35 from the operation port toward the sluice valve 1. Then, the cover 10 is attached to the operation cap 7.
After mounting the cover 10, the operator opens both open / close arms 15 to the open position O to cover the lower engaging piece 21 and the upper engaging piece 22 as shown by the phantom line in FIG. Then, the work is completed by lifting the attachment / detachment operation device 14 only from the operation port to the ground.

As described above, by observing the display of the warning plate 41 attached to the cover 10, it is possible to reliably read the valve opening degree even by an operator or a person who does not know the proper operation procedure. Also, since it is noticed that the write operation is performed without forgetting, it is possible to reduce accidents by mistake.

In the third embodiment, as shown in FIG. 7, the warning plate 41 is provided as an example of warning means, but a warning label may be attached to the cover 10 or a warning message may be displayed. You may print directly on the upper surface of the cover 10.

In the third embodiment, the electronic name plate 1 is used.
1 is attached to the operation cap 7, but the electronic nameplate 11
May be attached to the cover 10. Further, the warning text may be directly printed on the electronic name plate 11 attached to the cover 10.

The fourth embodiment may be configured as follows. That is, as shown in FIG. 1, the outer diameter X of the upper end portion of the cover 10 is formed larger than the width Y of one side of the lower portion of the operation cap 7 (X> Y).

According to this, in the unlikely event of an operator accidentally,
When attempting to fit the lower fitting portion 9 of the opening / closing operation handle 8 onto the cover 10 attached to the operation cap 7 from above, the outer diameter X of the cover 10 becomes the width Y of the operation cap 7 as described above. Is larger than the lower fitting portion 9
Is too small to cover the lower fitting part 9 from above.
Cannot be fitted to. As a result, the opening / closing operation handle 8 cannot be used, and an erroneous operation such as rotating the operation cap 7 with the cover 10 still attached can be prevented.

Further, as a fifth embodiment, as shown in FIG. 9, the outer diameter X of the top plate portion 10b of the cover 10 is made larger than the width Y of one side of the lower portion of the operation cap 7 (X
> Y), it is formed larger than the outer diameter Z of the body 10a of the cover 10 (X> Z).

According to this, in the unlikely event of an operator accidentally,
When attempting to fit the lower fitting portion 9 of the opening / closing operation handle 8 into the cover 10 attached to the operation cap 7 from above, the top plate portion 10b of the cover 10 is as described above.
Since the outer diameter X of the lower fitting portion 9 is sufficiently larger than the width Y of the operation cap 7, the hole of the lower fitting portion 9 is too small,
Cannot be fitted into the cover 10 from above. As a result, the opening / closing operation handle 8 cannot be used,
It is possible to prevent an erroneous operation such as rotating the operation cap 7 with the cover 10 still attached.

In each of the above embodiments, the electronic seal plate 11 is provided on the soft seal sluice valve 1, but it may be provided on a valve other than the sluice valve 1 (such as a butterfly valve). In each of the above-described embodiments, as shown in FIGS. 3 and 5, each of the attachment / detachment operation devices 14 and 35 includes a pair of opening / closing arms 15, that is, two opening / closing arms 15. 15 may be provided. For example, when the number of the open / close arms 15 is 3, the open / close arms 15 may be arranged so as to surround the periphery of the cover 10 at intervals of 120 °, and when the number of the open / close arms 15 is at 4, may be arranged at intervals of 90 °. .

[0057]

As described above, according to the first aspect of the present invention, in the unlikely event that the operator accidentally forgets the proper work procedure, the care is taken carelessly with the cover still attached to the operation cap. Even if an attempt is made to connect the opening / closing operator to the operation cap, the cover prevents the opening / closing operator from connecting to the operation cap, and the operation is interrupted. As a result, the worker notices that the work procedure he is performing has an error, and confirms the proper work procedure before executing it. Therefore, the worker notices that he or she does not forget to write the valve opening, and it is possible to reduce the operator's careless mistake.

According to the second aspect of the present invention, when the cover is detached from the operation cap or attached to the operation cap,
By looking at the display of the warning means, even the operator or a person who is not familiar with the operation procedure will notice that the writing operation of the valve opening degree is surely performed.

According to the third aspect of the present invention, when the operator removes the cover from the operation cap or attaches the cover to the operation cap, the operator can surely recognize the presence of the electronic nameplate together with the cover. Notice that you do the operation. This can reduce the operator's inadvertent mistakes.

[Brief description of drawings]

FIG. 1 is a view of a cover provided on a valve according to a first embodiment of the present invention, (a) shows a state in which the cover is attached to an operation cap, and (b) shows a part of the cover. Sectional drawing is shown and (c) shows the AA arrow line view in the above (a).

FIG. 2 is a partially cutaway perspective view of the same.

FIG. 3 is a view of an attachment / detachment operation device used in the same valve opening / closing work.

FIG. 4 is a diagram showing an operating procedure for opening and closing the valve.

FIG. 5 is a view of an attachment / detachment operation device used when opening / closing a valve according to a second embodiment of the present invention.

FIG. 6 is a diagram showing an operating procedure for opening and closing the valve.

7A and 7B are views of a cover provided on a valve according to a third embodiment of the present invention, FIG. 7A shows a state in which the cover is attached to an operation cap, and FIG. 7B shows a state in which the cover is attached to the cover. FIG.

FIG. 8 is a diagram showing an operating procedure for opening and closing the valve.

FIG. 9 is a view of a cover provided on a valve according to a fifth embodiment of the present invention.

FIG. 10 is a partially cutaway perspective view of a conventional valve.

FIG. 11 is a view of the operating cap of the valve and the electronic name plate of the same.

FIG. 12 is a diagram showing an operating procedure for opening and closing the valve.

[Explanation of symbols]

1 gate valve 2 valve rod 7 Operation cap 8 Open / close operation handle (open / close operation device) 10 covers 11 Electronic nameplate 12 RFID tag 41 Warning plate (warning means)

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Claims (3)

[Claims] 1. A valve provided with an RFID tag as a non-contact information readable / writable RFID tag as an electronic nameplate, the valve being mounted on a valve rod and operated by an open / close controller that can be connected and separated. , A valve with an electronic nameplate, which is equipped with a removable cover for preventing inaction. 2. A valve provided with an electronic name plate according to claim 1, wherein the cover is provided with a warning means indicating that the valve opening is written in the electronic name plate. 3. A valve with an electronic nameplate according to claim 1, wherein the electronic nameplate is attached to the cover.