JP2023121113A - Water meter unit and water meter unit control system - Google Patents

Abstract

To provide a water meter unit and a water meter unit control system that can easily and reliably control opening/closing of a valve.SOLUTION: A water meter unit comprises a water meter 1 for measuring a flow rate of water flowing through a flowing water pipe 4, a valve 2 provided on the upstream side or downstream side of the water meter 1 in the flowing water pipe 4, and a control unit 3 for controlling the water meter 1 and the valve 2. The valve 2 comprises a ball cock body 22 in which a flow hole 221 is formed, a drive part 23 for axially rotating the ball cock body 22, and a rotation transmission mechanism 24 for transmitting rotation of the drive part 23 to the ball cock body 22. The drive part 23 axially rotates the ball cock body 22 via the rotation transmission mechanism 24 in accordance with an instruction of a control part 31 of the control unit 3, and thereby the valve 2 is opened and closed.SELECTED DRAWING: Figure 1

Description

The present invention relates to a water meter unit provided in water supply and a water meter unit control system.

In general, a water meter unit includes a water meter that measures the flow rate of water flowing through tap water, and a valve such as a stop cock provided upstream or downstream of the water meter in the tap water. In recent years, a proposal has been made to automatically measure the flow rate and control the valve by connecting the water meter unit and information terminals on the waterworks bureau side and the user side via a network (Patent Document 1). 3).

For example, in Patent Document 1, when the user selects the "shut off" button displayed on the mobile terminal only when the flow rate is confirmed, the shutoff unit of the measuring device shuts off the water supply, and the completion notification is used. There is disclosed an information terminal for a water meter that prevents battery consumption of the measuring device due to reckless valve operation by displaying information on the user's portable terminal.

Further, Patent Document 2 has a flow rate detection portion, a flow rate control portion, and a control unit. A water meter is disclosed comprising a stepping motor 35 whose drive is controlled by a control unit 4 .

Moreover, Patent Document 3 has a storage box, an automatic valve having an actuator arranged in the storage box, a water meter, and a water stop valve. A control device is housed in a storage box, and an automatic valve and a water meter are connected to this control device. The control device transmits a signal from the water meter to the outside, and a water meter that opens and closes the automatic valve by a driving signal from the outside. is disclosed.

Japanese Patent Application Laid-Open No. 2018-36050 JP-A-2000-258201 Japanese Patent Application Laid-Open No. 2001-317972

However, in all water meter units, the structure of the valve is unclear, or the complex structure using electromagnetic valves causes large pressure loss and water hammer, or it is as large as the main body of the water meter (flow measurement part). There was a problem that it was not practical because it was difficult to accommodate it in the fixed meter box.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a water meter unit and a water meter unit control system that can easily and reliably open and close valves in the water meter unit.

In order to achieve the above object, the present invention provides a water meter for measuring the flow rate of water flowing through the water supply, a valve provided upstream or downstream of the water meter in the water supply, and a control for controlling at least the valve. The valve includes a ball plug body having a communication hole formed therein, a drive section for axially rotating the ball plug body, and a rotation transmission mechanism for transmitting rotation of the drive section to the ball plug body. When water is passed through, the drive section axially rotates the ball plug via the rotation transmission mechanism according to the command from the control section, thereby aligning the axial direction of the flow hole of the ball plug with the water flow direction. While the valve is opened while the valve is being turned on, when the water is stopped, the drive section axially rotates the ball plug through the rotation transmission mechanism according to the command from the control section, thereby causing the through hole of the ball plug to rotate axially. The valve is closed while intersecting the direction and the water flow direction.

According to this, the valve is opened and closed by rotating the ball plug body through the rotation transmission mechanism by the driving section according to a command from the control section. can be opened and closed securely.

Further, the drive unit may be arranged in the width direction of the water meter with respect to the ball plug, and may rotate the ball plug through a rotation transmission mechanism. According to this, in the meter box in which the water meter unit is accommodated, since the drive unit is arranged in the width direction of the water meter unit, the entire water meter unit can be easily accommodated in the meter box. It becomes easier to perform work such as replacement of the product.

Further, on the opposite side of the driving part with respect to the ball plug, there is provided an operation part for axially rotating the ball plug through a second rotation transmission mechanism, and when the water is supplied, the operation part is rotated by the operator. The operation unit axially rotates the ball plug via the second rotation transmission mechanism, thereby opening the valve while aligning the axial direction of the flow hole of the ball plug with the water flow direction, and when the water is stopped. In the above, the operating portion axially rotates the ball plug through the second rotation transmission mechanism by the operator's rotational operation, thereby crossing the axial direction of the flow hole of the ball plug and the water flow direction. The valve may be closed. According to this, even when the driving part becomes unusable due to failure, replacement, or the like, the valve can be easily and reliably opened and closed by axially rotating the ball plug body with the operating part on the opposite side.

Further, on the same side of the drive unit with respect to the ball plug, an operation unit for axially rotating the ball plug via the rotation transmission mechanism is provided, and when water is supplied, the operation is performed by an operator's rotation operation. By axially rotating the ball plug via the rotation transmission mechanism, the valve is opened while the axial direction of the flow hole of the ball plug is aligned with the water flow direction. The valve may be closed while the axial direction of the flow hole of the ball plug and the water flow direction intersect by rotating the ball plug through the rotation transmission mechanism. According to this, even if the driving part becomes unusable due to failure, replacement, or the like, the valve can be opened and closed easily and reliably by rotating the ball plug body with the operating part on the same side of the driving part. can be done.

In addition, the rotation transmission mechanism includes a driving section side rotating shaft connected to the driving section and a plug section side rotating shaft connected to the ball plug body. The rotation axes may be arranged in a state that they are offset from each other in the plane direction. According to this, by connecting the operating portion to the plug-side rotating shaft, the ball plug can be axially rotated by the operating portion via the plug-side rotating shaft.

Further, the rotation transmission mechanism includes a clutch mechanism provided between the driving portion-side rotating shaft and the plug portion-side rotating shaft, and the clutch mechanism rotates the driving portion-side rotating shaft and the plug portion-side rotating shaft. The rotating shaft may be fixed or detached. According to this, when the driving portion side rotating shaft and the plug portion side rotating shaft are fixed by the clutch mechanism, the ball plug is axially rotated by the driving portion via the driving portion side rotating shaft and the plug portion side rotating shaft. On the other hand, if the clutch mechanism separates the driving part-side rotary shaft from the plug-side rotary shaft, the operation part can smoothly rotate the ball plug via the plug-side rotary shaft. can.

The plug-side rotating shaft includes a first plug-side rotating shaft to which the clutch mechanism is connected at one end and to which the operating portion is connected, and the first plug-side rotating shaft at one end. a second plug-side rotary shaft connected to the side rotary shaft and having the other end connected to the ball plug, and connecting the first plug-side rotary shaft to the second plug-side rotary shaft. a biasing member that biases the rotating shaft in the separating direction,
By the biasing force of the biasing member, the first plug-side rotating shaft is moved in the separating direction from the second plug-side rotating shaft, thereby causing the drive unit-side rotating shaft to be driven by the clutch mechanism. and fix the plug-side rotating shaft, and the first plug-side rotating shaft is moved to the second plug-side rotating shaft by the pressing force of the operation unit. By moving in the approaching direction while resisting the urging force, the clutch mechanism may separate the drive section-side rotating shaft and the plug body-side rotating shaft. According to this, it is possible to easily and reliably fix or detach the drive section-side rotating shaft and the plug body-side rotating shaft by the clutch mechanism.

A valve according to the present invention is a valve used in the above-mentioned water meter unit, wherein the valve includes a ball plug body having a flow hole formed therein, a drive section for axially rotating the ball plug body, and the drive section. a rotation transmission mechanism for transmitting rotation to the ball plug body, and when water is supplied, the drive section axially rotates the ball plug body via the rotation transmission mechanism according to a command from the control section, thereby While opening the valve while aligning the axial direction of the flow hole of the ball plug with the direction of the water flow, when the water is stopped, the drive section rotates the ball plug through the rotation transmission mechanism according to the command of the control section. By rotating the valve, the valve is closed while crossing the axial direction of the flow hole of the ball plug and the water flow direction. According to this, the valve is opened and closed by rotating the ball plug body through the rotation transmission mechanism by the driving section according to a command from the control section. can be opened and closed securely.

A water meter unit control system according to the present invention comprises the above water meter unit and a water supply station side information terminal connected to the water meter unit via a network, wherein the water meter unit is connected to the water supply station side information terminal. The control unit controls the driving unit in accordance with a command from. According to this, the waterworks bureau can easily and reliably control the opening and closing of the valve even from a position away from the water meter unit.

A water meter unit control system according to the present invention comprises the water meter unit and a user information terminal connected to the water meter unit via a network, wherein the water meter unit is connected to the user information terminal. The control unit controls the driving unit in accordance with a command from. According to this, the user of the water supply can easily and reliably control the opening and closing of the valve even from a position away from the water meter unit.

According to the present invention, the drive section rotates the ball plug through the rotation transmission mechanism in response to a command from the control section to open and close the valve. In addition, it is possible to reliably open and close the valve, and eventually it is possible to realize a smart meter that remotely performs the opening and closing of the valve and the measurement of the flow rate.

1 is a front configuration diagram of a water meter unit according to a first embodiment; FIG. FIG. 2 is a side view of the water meter unit of FIG. 1; 3A and 3B are a plan view and a front view showing a state in which a valve of the water meter unit of FIG. 1 is opened; FIG. 1. It is the (a) plane block diagram and (b) front block diagram which show the state which closed the valve|bulb of the water meter unit of FIG. FIG. 3 is a perspective view of a ball stopper; 3 is a block diagram showing the electrical configuration of the water meter unit; FIG. It is a front block diagram of the water meter unit which concerns on 2nd Embodiment. FIG. 8 is a side view of the water meter unit of FIG. 7; 8 is (a) a plan configuration view and (b) a front configuration view showing a state in which the valve of the water meter unit of FIG. 7 is opened; FIG. 8 is (a) a plan configuration view and (b) a front configuration view showing a state in which the valve of the water meter unit of FIG. 7 is closed; FIG. FIG. 8A is a plan configuration diagram and FIG. 8B is a front configuration diagram of a water meter unit (before attachment of an operation unit) according to a third embodiment; FIG. 12 is (a) a plan configuration view and (b) a front configuration diagram showing a state in which the valve of the water meter unit (after the operating portion is attached) of FIG. 11 is opened; FIG. 12 is (a) a plan configuration view and (b) a front configuration diagram showing a state in which the valve of the water meter unit of FIG. 11 (after the operation portion is attached) is closed; FIG. 11 is a front configuration diagram of a water meter unit (before attachment of an operation portion) according to a fourth embodiment; FIG. 15 is a front configuration diagram showing a state before closing the valve of the water meter unit (after the operation portion is attached) of FIG. 14; FIG. 15 is a front configuration diagram showing a state in which the valves of the water meter unit of FIG. 14 (after the operation section is attached) are closed; FIG. 4 is a plan view showing an image of the configuration of the clutch mechanism; FIG. 11 is a schematic diagram showing the overall configuration of a water meter unit control system according to a fifth embodiment;

<First embodiment>
Next, a first embodiment of a water meter unit 10 according to the present invention will be described with reference to FIGS. 1 to 6. FIG.

As shown in FIGS. 1 and 2, the water meter unit 10 is provided in the middle of the water pipe 4, and measures the flow rate of the water flowing through the water pipe 4. 4 is provided downstream of the water meter 1 and is electrically connected to a control unit 3 shown in FIG.

The water meter 1 is connected to a water pipe 4. An inlet portion 11 into which water flows from the water pipe 4, an outlet portion 12 into which water flows out, and an inlet portion 11 and an outlet portion 12 are connected. and a meter main body 13 .

The meter body 13 is composed of a casing made of metal or resin, and includes a measurement unit 131 that measures the flow rate and pressure of water, a display unit 132 that displays the flow rate of water measured by the measurement unit 131, and tubing 134 containing electrical wiring to and from the valve.

The measurement unit 131 accommodates therein a strainer, a rectifier, an impeller, and various sensors (not shown), which are the same as those mounted on the conventional water meter 1 . For example, an impeller is rotated by the flow of water flowing in from the inlet portion 11, and a rotating magnetic field generated by a magnet that rotates with the impeller is detected by a flow sensor such as a magnetic sensor, and based on the detection result, The flow rate of water flowing through the water pipe 4 is measured by the controller 31, which will be described later. Further, the pressure of the water flowing through the inlet portion 11 is detected by a pressure sensor, and the pressure of the water flowing through the water pipe 4 is measured by the control portion 31, which will be described later, based on the detection result.

The display unit 132 is provided on the upper part of the meter main unit 13 and displays the flow rate of water measured by the measurement unit 131 in a counter type manner. At times, the meter cover 133 is opened to check the flow rate displayed on the display section 132 .

The valve 2 includes a valve main body 21 connected to the outflow port 12 of the water meter 1, a ball plug 22 accommodated inside the valve main body 21, and a drive unit 23 for axially rotating the ball plug 22. and a rotation transmission mechanism 24 for transmitting the rotation of the driving portion 23 to the ball plug body 22 .

The valve main body 21 is composed of a casing whose central portion is formed to be slightly larger in diameter than the outflow port 12 of the water meter 1 , and the inflow side opening 211 is connected to the outflow port 12 of the water meter 1 . At the same time, the opening 212 on the outflow side is connected to the water pipe 4, and the fluid flowing in from the opening 211 on the inflow side flows out after passing through the inside of the valve main body 21 (the communication hole 221 of the ball plug 22). forming a water flow direction F flowing out of the opening 212 on the side.

The valve main body 21 is provided with ball seats 214 made of metal, resin, or rubber at the opening 211 on the inflow side and the opening 212 on the outflow side. are supported in such a manner that they are sandwiched from both the inflow side and the outflow side.

The valve main body 21 is provided with a cover pipe 242 of a rotation transmission mechanism 24, which will be described later, in an upper opening 213, and a rotary shaft 241 of the rotation transmission mechanism 24 is inserted toward the inside of the valve main body 21. It is made into a thing.

As shown in FIG. 5, the ball plug 22 is a generally spherical ball member made of metal or resin. The ball plug 22 is accommodated in the valve main body 21 so as to be able to rotate in the horizontal direction. When the water is stopped, the axis rotates alternately in the horizontal direction at an angle of 90 degrees so that the axial direction of the flow hole 221 and the water flow direction F intersect at right angles.

The ball plug 22 maintains watertightness by the ball seat 214 of the valve body 21 as described above. Therefore, when water flows, all the water that has flowed in from the opening 211 on the inflow side of the valve main body 21 passes through the flow hole 221 in the ball plug 22, and then flows through the opening 212 on the outflow side of the valve main body 21. It is considered to flow out from

The drive unit 23 is arranged vertically above the ball plug 22, and includes a drive motor 231 having a rotation shaft in the vertical direction and a speed reducer 232 for reducing the rotation speed of the drive motor 231. Prepare. These drive motor 231 and speed reducer 232 are accommodated in a case portion 233 together with a communication portion 32 and a power supply battery 35 which will be described later.

The rotation transmission mechanism 24 includes a vertically extending rotating shaft 241 and a cover tube 242 covering the rotating shaft 241. One end of the rotating shaft 241 is connected to the drive unit 23 via a reduction gear 232. On the other hand, the other end of the rotary shaft 241 is connected to the upper end of the ball plug body 22 . A case portion 233 is connected to the upper end portion of the cover pipe 242 , and the case portion 233 is supported by the upper end portion of the cover pipe 242 .

The valve 2 has an opening/closing sensor functioning as a limiter switch (not shown), and the opening/closing sensor detects and stores the fully opened or closed state of the valve 2 by the ball plug 22 . Further, the valve 2 may be configured so that the open state and the closed state of the valve 2 can be confirmed by an LED or the like.

The control unit 3 is provided in the case part 233, and as shown in FIG. Equipped with a communication unit 32 having an external connection terminal, an operation display unit 33 for performing various displays and various operations for control, and a timer unit 34 having a timer function. and a valve 2 having a drive motor 231 are electrically connected.

When the control unit 31 instructs the drive unit 23 to pass water, the drive unit 23 rotates the ball plug 22 in a predetermined direction through the rotation transmission mechanism 24 as shown in FIG. The valve 2 is opened while the axial direction J of the flow hole 221 of the ball plug 22 and the water flow direction F are aligned by rotating the shaft 90 degrees (counterclockwise when viewed from above in this embodiment).

When the control unit 31 instructs the drive unit 23 to stop the water flow, the drive unit 23 rotates the ball plug 22 through the rotation transmission mechanism 24 at an angle of 90 degrees as shown in FIG. By rotating the shaft 90 degrees in the opposite direction (clockwise when viewed from the top in this embodiment), the valve 2 is opened while the axial direction J of the flow hole 221 of the ball plug 22 intersects the water flow direction F. close.

When opening and closing the valve 2, the control unit 31 may automatically open and close the valve 2 based on the measurement results of flow rate and pressure by the measurement unit 131 of the water meter 1. The valve 2 may be opened and closed based on the operation of the side information terminal 20 or the user side information terminal 30 .

<Second embodiment>
Next, a second embodiment of the water meter unit 10 according to the present invention will be described with reference to FIGS. 7 to 10. FIG. In the following, only configurations different from the above embodiment will be described, and descriptions of the same configurations will be omitted and the same reference numerals will be given.

As shown in FIGS. 7 and 8, in the water meter unit 10, the drive unit 23 and the rotation transmission mechanism 24 extend in the width direction of the water meter 1 (in this embodiment, in the horizontal direction perpendicular to the vertical direction of the water meter 1). They are arranged side by side, and the ball plug body 22 is housed inside the valve body 21 so as to be rotatable in the vertical plane.

When the control unit 31 instructs the drive unit 23 to pass water during water flow, the drive unit 23 moves the ball plug 22 vertically through the rotation transmission mechanism 24 as shown in FIG. By rotating the inside of the valve at an angle of 90 degrees in a predetermined direction (clockwise when viewed from the front in this embodiment), the axial direction J of the flow hole 221 of the ball plug 22 and the water flow direction F are aligned with each other. Open 2.

When the control unit 31 instructs the drive unit 23 to stop the water flow, the drive unit 23 rotates the ball plug 22 through the rotation transmission mechanism 24 at an angle of 90 degrees as shown in FIG. By rotating the axis in the vertical plane at an angle of 90 degrees in the opposite direction (counterclockwise when viewed from the front in this embodiment), the axial direction J of the flow hole 221 of the ball plug 22 intersects the water flow direction F. Close the valve 2 while

Therefore, in the meter box in which the water meter unit 10 is accommodated, the drive unit 23 is arranged in the width direction of the water meter unit 10, so that the entire water meter unit 10 can be easily accommodated in the meter box. It becomes easier to perform work such as connection and replacement of this product.

In the present embodiment, the drive unit 23 and the rotation transmission mechanism 24 are arranged side by side in the horizontal direction perpendicular to the vertical direction of the water meter 1. 45 degrees to 90 degrees is preferred).

<Third Embodiment>
Next, a third embodiment of the water meter unit 10 according to the present invention will be described with reference to FIGS. 11 to 13. FIG.

As shown in FIGS. 11 and 12, the water meter unit 10 has an operating portion 25 for axially rotating the ball plug 22 and a second rotating portion located on the opposite side of the ball plug 22 from the driving portion 23 . A transmission mechanism 26 is provided.

The operating portion 25 includes a lever-shaped handle portion 251 and a handle shaft 252 extending from the center of the handle portion 251, and is usually kept at a predetermined location by the waterworks bureau. In addition, the operation part 25 may be formed in a special shape so that anyone cannot easily operate the valve 2 so that the valve 2 can only be opened and closed with the dedicated operation part 25 .

The second rotation transmission mechanism 26 has a second rotation shaft 261 extending vertically in the opening 215 below the valve body 21 , and one end of the second rotation shaft 261 extends toward the tip of the handle shaft 252 . , and the other end is connected to the lower end of the ball plug body 22 .

As shown in FIG. 11, in the normal state in which the driving portion 23 is operating normally, the valve body portion 21 has the operation portion 25 removed from the second rotating shaft 261 and the opening portion 215 below is a cap. 12 and 13, in an emergency situation where the drive unit 23 cannot operate due to failure or replacement, the cap 216 is removed from the lower opening 215 and the second opening 216 is closed. A handle shaft 252 of the operating portion 25 is connected to the rotating shaft 261 .

In the unlikely event that the driving portion 23 cannot be used due to failure, replacement, or the like, as shown in FIG. By rotating the ball plug 22 at an angle of 90 degrees in a predetermined direction in the horizontal plane (clockwise when viewed from below) via the mechanism 26, the axial direction J of the circulation hole 221 of the ball plug 22 and the water flow direction Open valve 2 while matching F.

When the water is stopped, as shown in FIG. 13, the ball plug 22 is moved in the opposite direction in the horizontal plane (to the left when viewed from below) through the second rotation transmission mechanism 26 by the operator's rotation operation. ), the valve 2 is closed while the axial direction J of the flow hole 221 of the ball plug 22 and the water flow direction F intersect.

Therefore, even if the drive unit 23 becomes unusable due to failure, replacement, or the like, the valve 2 can be opened and closed easily and reliably by rotating the ball plug 22 with the operation unit 25 on the opposite side. can.
<Fourth Embodiment>
Next, a fourth embodiment of the water meter unit 10 according to the present invention will be described with reference to FIGS. 14 to 17. FIG.

As shown in FIGS. 14 to 16, the water meter unit 10 includes an operating portion 27 for axially rotating the ball plug 22 and a rotation transmission mechanism 28 on the same side of the driving portion 23 with respect to the ball plug 22. Prepare.

The rotation transmission mechanism 28 includes a driving portion side rotating shaft 281 connected to the driving portion 23, a plug portion side rotating shaft 282 connected to the ball plug 22, a driving portion side rotating shaft 281 and the plug portion side. and a clutch mechanism 283 provided between the rotating shafts 282, the driving portion side rotating shaft 281 and the plug portion side rotating shaft 282 are arranged in a state of being displaced from each other in the plane direction (direction perpendicular to each axis), A clutch mechanism 283 is used to fix or separate the drive section side rotating shaft 281 and the plug section side rotating shaft 282 .

More specifically, the plug-side rotary shaft 282 has a first plug-side rotary shaft 282a to which one end is connected to the clutch mechanism 283 and to which the operation unit 27 is connected, and a first plug-side rotary shaft 282a to which one end is connected A second plug-side rotary shaft 282b to which the first plug-side rotary shaft 282a is connected in an inserted state and the other end of which is connected to the ball plug 22; An urging member 282c (a spring spring in this embodiment) that urges the portion-side rotating shaft 282a in the separation direction of the second plug portion-side rotating shaft 282b.

As shown in FIG. 17, the clutch mechanism 283 includes a first clutch gear 283a having a substantially circular shape in a plan view fixed to the drive section side rotating shaft 281, and one end portion connected to the first clutch gear 283a. A substantially fan-shaped second clutch gear 283b in plan view and having the other end connected to the first plug-side rotating shaft 282a is provided.
In the normal state, as shown in FIG. 14, the biasing force of the biasing member 282c moves the first plug-side rotating shaft 282a away from the second plug-side rotating shaft 282b. (upward), and the second clutch gear 283b of the clutch mechanism 283 also moves upward accordingly, thereby meshing the first clutch gear 283a and the second clutch gear 283b of the clutch mechanism 283, The mechanism 283 fixes the driving part side rotating shaft 281 and the stopper part side rotating shaft 282 . By fixing the driving portion side rotating shaft 281 and the plug portion side rotating shaft 282 by the clutch mechanism 283 in this way, as shown in FIG. The ball plug 22 can be pivoted through the shaft 282.

On the other hand, in an emergency situation in which the drive unit 23 cannot be used due to failure, replacement, or the like, as shown in FIG. Due to the pressing force of the operating portion 27, the first plug-side rotating shaft 282a moves toward the second plug-side rotating shaft 282b while resisting the biasing force of the biasing member 282c. As the second clutch gear 283b of the clutch mechanism 283 is also moved downward, the meshing between the first clutch gear 283a and the second clutch gear 283b of the clutch mechanism 283 is released, and the clutch mechanism 283 operates on the drive side. The rotary shaft 281 and the plug body side rotary shaft 282 are separated. 16, by separating the driving portion-side rotating shaft 281 and the plug-side rotating shaft 282 by the clutch mechanism 283, the ball plug is rotated by the operating portion 27 via the plug-side rotating shaft 282, as shown in FIG. The body 22 can be smoothly pivoted.

In the present embodiment, the clutch mechanism 283 is provided between the driving portion side rotating shaft 281 and the plug portion side rotating shaft 282, but it may be provided at another location such as in the middle of the speed reducer. Alternatively, the clutch mechanism 283 may not be provided as long as there is no problem even if the speed reducer rotates in the reverse direction when the plug body side rotating shaft 282 is rotated by the operating portion 27 .

<Fifth Embodiment>
Next, an embodiment of a water meter unit control system according to the present invention will be described with reference to FIG.

As shown in FIG. 18, this system comprises a waterworks bureau-side information terminal 20 installed in the waterworks bureau, a user-side information terminal 30 owned by a waterworks user, a waterworks bureau-side information terminal 20 and the user-side information terminal 30. A server 40 connected to a terminal 30 and a water meter unit 10 connected to the server 40 via a network are provided.

When the water supply bureau side information terminal 20 or the user side information terminal 30 instructs the water meter unit 10 to supply or stop the water via the network, the controller 31 in the water meter unit 10 causes the drive unit 23 is instructed to turn water on or off, and the drive unit 23 rotates the ball plug 22 in a predetermined direction or the opposite direction in the horizontal plane through the rotation transmission mechanism 24 according to the command from the control unit 31. Open and close valve 2.

Therefore, the opening and closing of the valve can be easily and reliably controlled even from a position away from the water meter unit on the waterworks bureau side or on the water supply user side.

In this embodiment, the water supply station information terminal 20 and the user information terminal 30 are assumed to communicate with the water meter unit 10 via the network, but they may communicate with each other regardless of whether they are wired or wireless.

In addition, when the control unit 31 closes the valve 2 of the water meter unit 10 according to a command from the water supply bureau information terminal 20, the control unit 31 opens the valve 2 only according to a command from the water supply bureau information terminal 20. A person may be prevented from opening the valve 2 of the water meter unit 10 .

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be added to the illustrated embodiment within the same scope as the present invention or within an equivalent scope.

DESCRIPTION OF SYMBOLS 1... Water meter 11... Inlet part 12... Outlet part 13... Meter main-body part 131... Measurement part 132... Display part 133... Meter cover 2... Valve 2
21... Valve main body 211... Inflow side opening 212... Outflow side opening 213... Upper opening 214... Ball seat 215... Lower opening 216... Cap 22... Ball stopper 221... Flow hole 23... Drive Part 231 Drive motor 232 Reducer 233 Case 24 Rotation transmission mechanism 241 Rotating shaft 242 Cover pipe 3 Control unit 31 Control part 32 Communication part 33 Operation display part 34 Timer part 35 Power supply Battery 4 Water pipe 10 Water meter unit 20 Water bureau side information terminal 30 User side information terminal 40 Server

Claims (10)

A water meter for measuring the flow rate of water flowing through a tap, a valve provided upstream or downstream of the water meter in the tap, and a control unit for controlling at least the valve,
The valve includes a ball stopper having a communication hole, a drive section for axially rotating the ball plug, and a rotation transmission mechanism for transmitting rotation of the drive section to the ball plug,
At the time of water flow, the driving section axially rotates the ball plug via the rotation transmission mechanism according to the command from the control section, thereby aligning the axial direction of the flow hole of the ball plug with the water flow direction. while opening the valve;
When the water is stopped, the drive unit axially rotates the ball plug through the rotation transmission mechanism according to a command from the control unit, so that the axial direction of the flow hole of the ball plug intersects the water flow direction. A water meter unit, wherein the valve is closed. 2. The water meter unit according to claim 1, wherein the drive section is arranged in the width direction of the water meter with respect to the ball plug, and axially rotates the ball plug via the rotation transmission mechanism.
an operation unit for axially rotating the ball plug via a second rotation transmission mechanism on the opposite side of the drive unit with respect to the ball plug,
At the time of water flow, the manipulating part rotates the ball plug through the second rotation transmission mechanism by the operator's rotation operation, so that the axial direction of the flow hole of the ball plug and the water flow direction are changed. While opening the valve while matching
When the water is stopped, the manipulator rotates the ball plug via the second rotation transmission mechanism to rotate the ball plug so that the axial direction of the flow hole of the ball plug and the water flow direction are changed. 3. The water meter unit according to claim 1, wherein the valve is closed while crossing. an operation unit for axially rotating the ball plug via the rotation transmission mechanism on the same side of the driving unit with respect to the ball plug,
At the time of water flow, the ball plug is axially rotated by the operation unit through the rotation transmission mechanism by the operator's rotation operation, thereby aligning the axial direction of the flow hole of the ball plug with the water flow direction. while opening the valve
When the water is stopped, the operation part rotates the ball plug through the rotation transmission mechanism by the operator's rotation operation, so that the axial direction of the flow hole of the ball plug and the water flow direction intersect each other. 3. A water meter unit according to claim 1 or 2, wherein the valve is closed. The rotation transmission mechanism includes a driving section side rotating shaft connected to the driving section and a plug section side rotating shaft connected to the ball plug body. 5. The water meter unit according to claim 4, wherein the are arranged in a state that they are offset from each other in the plane direction. The rotation transmission mechanism includes a clutch mechanism provided between the driving portion side rotating shaft and the plug portion side rotating shaft. 6. The water meter unit according to claim 5, wherein the water meter unit is fixed or disconnected. The plug-side rotary shaft includes a first plug-side rotary shaft to which one end is connected to the clutch mechanism and to which the operation unit is connected, and one end to which the first plug-side rotary shaft is connected. a second plug-side rotating shaft connected to a shaft and having the other end connected to the ball plug; and a biasing member that biases in the separating direction of
By the biasing force of the biasing member, the first plug-side rotating shaft is moved in the separating direction from the second plug-side rotating shaft, thereby causing the drive unit-side rotating shaft to be driven by the clutch mechanism. and fixing the rotating shaft on the plug body side,
By the pressing force of the operation unit, the first plug-side rotating shaft moves in the approaching direction with respect to the second plug-side rotating shaft while resisting the biasing force of the biasing member. 7. The water meter unit according to claim 6, wherein the drive section side rotating shaft and the plug section side rotating shaft are separated by the clutch mechanism. A valve used in the water meter unit according to claim 1,
The valve includes a ball stopper having a communication hole, a drive section for axially rotating the ball plug, and a rotation transmission mechanism for transmitting rotation of the drive section to the ball plug,
At the time of water flow, the driving section axially rotates the ball plug via the rotation transmission mechanism according to the command from the control section, thereby aligning the axial direction of the flow hole of the ball plug with the water flow direction. while opening the valve;
When the water is stopped, the drive unit axially rotates the ball plug through the rotation transmission mechanism according to a command from the control unit, so that the axial direction of the flow hole of the ball plug intersects the water flow direction. A valve for closing said valve. A water meter unit according to claim 1, and a water supply station side information terminal connected to the water meter unit via a network,
The water meter unit is a water meter unit control system in which the control section controls the drive section according to a command from the water supply station side information terminal. A water meter unit according to claim 1, and a user-side information terminal connected to the water meter unit via a network,
A water meter unit control system in which the control section controls the driving section according to a command from the user-side information terminal for the water meter unit.