JP2022108005A - Composite meter unit - Google Patents

Abstract

To provide a composite meter unit capable of taking water without removing a water meter.SOLUTION: A composite meter unit 1A comprises: inflow side piping 11 that has an inflow pipe 16 that has a water inflow port 15, five branch pipes 17 that are branched from the inflow pipe 16, and a water passage port 25 that communicates with the inflow pipe 16 without passing through the five branch pipes 17; and a cover body 33 that blocks openable and closable the water passage port 25. Each branch pipe 17 is provided with a stop cock 22 for opening and closing the branch pipe 17 . A water supply meter 13 is connected to a water outlet 23 of each branch pipe 17.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a composite meter unit having a plurality of water meters and capable of taking water.

Patent Documents 1 and 2 describe a composite meter unit that distributes water from a main pipe of a water pipe to a plurality of pipes and supplies water to each house while metering the water. The composite meter units described in these documents include an inflow side pipe connected to a primary side pipe that communicates with the main pipe. The inflow pipe includes an inflow pipe having an inflow port into which water from the main pipe of the water pipe flows, and a plurality of tributary pipes branching from the inflow pipe. The inflow pipe has a straight main pipe portion and a plurality of tributary pipes branch off from the main pipe portion. Each of the plurality of tributary pipes has a stop cock. A water meter is connected to the water outlet of each branch pipe. In addition, the composite meter unit includes outflow-side piping that is connected to each of the water meters. Each outflow pipe has a check valve. A secondary side pipe extending to each house is connected to each outflow side pipe.

The compound meter unit of Patent Document 1 is installed in a posture in which the main pipe portion extends horizontally. The composite meter unit of Patent Document 2 is installed in a posture in which the main pipe portion extends vertically.

JP 2018-204277 A JP 2008-175802 A

In the event of a disaster, if water can be taken from the main pipe of the water pipe to each house, potable water can be supplied to the disaster victims. Further, in such a case, if water is taken from the composite meter unit, water can be supplied to the outside without performing construction such as forming openings for water intake in the pipes before and after the composite meter unit. However, when water is taken from the compound meter unit, one water meter must be removed from the compound meter unit and a water supply pipe must be connected to supply water to the target location.

SUMMARY OF THE INVENTION An object of the present invention is to provide a composite meter unit that can take in water without removing the water meter.

In order to solve the above problems, the composite meter unit of the present invention includes an inflow pipe having a water inlet, a plurality of branch pipes branching from the inflow pipe, and a An inflow-side pipe having a communicating water passage, and a lid for opening and closing the water passage; A water meter is connected to each of the outflow ports.

In the present invention, the inflow-side pipe into which water from the main pipe flows is provided with a water passage opening communicating with the inflow pipe. Therefore, when the lid closing the water passage is removed to open the water passage, water from the main pipe can be taken in through the water passage. Therefore, in the event of a disaster or the like, water can be taken from the meter box without removing the water meter. Here, each tributary pipe is provided with a stopcock for opening and closing the tributary pipe. Also, the water inlet communicates with the inflow pipe without passing through any of the branch pipes. Therefore, when water is taken in from the water passage, all the water flowing in from the main pipe can be discharged from the water passage by closing all the stopcocks provided for each of the plurality of branch pipes. Also, when taking water from a water inlet, if the water stopcock of a specific tributary pipe is opened and the water stopcock of another tributary pipe is closed, water will be supplied from the water inlet and the specific tributary pipe will be closed. Water can be circulated only through the water supply system. Therefore, at the time of water intake from the water passage, it is possible to continue the supply of water to the doors and facilities that require it.

In the present invention, the inflow pipe includes a main pipe portion extending linearly, each branch pipe branches from the main pipe portion, and in the installation posture, the main pipe portion and each branch pipe extend in the horizontal direction, It is desirable that the water passage opening opens upward. By doing so, a water supply pipe or the like for supplying water from the water passage to a target location can be connected to the water passage from above. Therefore, when the composite meter unit is buried underground, it becomes easy to connect the water supply pipe to the water inlet.

In the present invention, the inflow-side pipe includes a communication pipe that communicates with the main pipe portion, the plurality of branch pipes protrude in the same direction from the main pipe portion and extend parallel to each other, and the water flow port is: The communicating pipe is provided above the plurality of tributary pipes, and the communicating pipe includes a first extended pipe portion extending downward from the water inlet and two adjacent tributaries from the main pipe portion. a second extension pipe portion extending between pipes and connected to a lower end portion of the first extension pipe portion. With this configuration, the inflow-side pipe has a communication pipe that communicates with the main pipe portion, and the plurality of branch pipes protrude in the same direction from the main pipe portion and extend parallel to each other. The water passage port is provided in the communication pipe and positioned above the plurality of branch pipes. Therefore, when a water supply pipe or the like is connected to the water passage, it is possible to prevent the water supply pipe from interfering with each of the plurality of branch pipes. In addition, by doing so, the position of the water flow port can be adjusted in the vertical direction, compared to the case where the communication pipe projects upward directly from the main pipe portion and the upper end of the communication pipe serves as the water flow port. Cheap.

In this case, the points of intersection where the first pipe axis of the first extension pipe portion and the second pipe axis of the second extension pipe portion intersect are the two points on both sides of the second extension pipe portion. It is preferably located closer to the main pipe portion than the respective outlets of the tributary pipes. In general, a water meter consists of an inflow pipe portion having an inflow port, a main body portion accommodating an impeller for measuring the flow rate of water, and a main portion. an outflow tube portion with an outflow port. In addition, when viewed from above and below, the width dimension of the main body portion is larger than the width dimension of the inflow pipe portion and the outflow pipe portion. Therefore, when a communicating pipe is provided between two adjacent tributary pipes, there is a possibility that the body portion of the water meter connected to the two adjacent tributary pipes and the communicating pipe come into contact with each other. On the other hand, if the intersection of the first pipe axis of the first extended pipe portion and the second pipe axis of the second extended pipe portion is located closer to the main pipe portion than the outflow port of the branch pipe. For example, when the water meter is connected to the two tributary pipes on both sides of the communicating pipe, it is possible to prevent or suppress the contact of the first extended pipe portion of the communicating pipe with the main body of the water meter.

In the present invention, the inlet may be provided coaxially with the second extension pipe portion. In this way, it is easy to take in the water flowing through the inlet through the water inlet.

In the present invention, the inflow pipe includes a main pipe portion extending linearly, each branch pipe branches from the main pipe portion, the main pipe portion extends vertically in an installation posture, and the water flow port is The opening may be in a direction intersecting with the main pipe portion. By doing so, a water supply pipe or the like for supplying water from the water passage to a destination can be connected to the water passage from the side.

In the present invention, the inflow-side pipe includes a communicating pipe that communicates with the main pipe portion, the plurality of branch pipes protrude in the same direction from the main pipe portion, and the water communication port is provided at the tip of the communicating pipe. provided, and the communicating pipe may protrude from the main pipe portion in a direction different from that of the plurality of branch pipes. By doing so, it is possible to prevent or suppress interference between the tributary pipe and the water supply pipe when connecting the water supply pipe to the water passage.

In the present invention, the inflow pipe may include an on-off valve that opens and closes the inflow port. In this way, in the event that the main pipe of the water pipe is cut off due to a disaster, etc., the inflow port is closed by the on-off valve, the lid is removed from the water flow port, and the water supply pipe of the water truck is connected to the water flow port. Then, the water supplied from the water truck can be supplied into the building via the composite meter unit. Therefore, in buildings used as evacuation centers, hospitals, and various other facilities, water from a water tanker can be delivered directly to places in the building that require water.

In the composite meter unit of the present invention, water can be taken without removing the water meter.

1 is a perspective view of a composite meter unit of Example 1. FIG. FIG. 2 is a partial cross-sectional view of the composite meter unit of FIG. 1; FIG. 10 is a perspective view of a composite meter unit of a modified example of the first embodiment; FIG. 11 is a perspective view of a composite meter unit of Example 2; FIG. 11 is an explanatory diagram of a rotating operation mechanism of the compound meter unit of Example 2; FIG. 4 is an explanatory diagram of the rotation operation mechanism when the water meter is in a meter checkable posture; FIG. 11 is a perspective view of a composite meter unit of a modified example of the second embodiment;

A composite meter unit according to an embodiment of the present invention will be described below with reference to the drawings.

(Example 1)
FIG. 1 is a perspective view of the composite meter unit of this example. 2 is a partial cross-sectional view of the composite meter unit of FIG. 1. FIG.

The composite meter unit 1A of this example is installed in the middle of a pipe drawn into the building from the main pipe of the water pipe. As shown in FIG. 1, the composite meter unit 1A distributes water from a primary side pipe 2 that communicates with the main pipe of a water pipe to a plurality of secondary side pipes 3 . In addition, the composite meter unit 1A supplies the distributed water to each secondary side pipe 3 while measuring it with the water meter 13 . In the example shown below, the composite meter unit 1A distributes water from the main pipe of the water pipe to four systems.

In this example, the primary side pipe 2 and the secondary side pipe 3 are buried underground. Accordingly, the composite meter unit 1A is also buried underground. In the following description, the composite meter unit 1A will be described with an installation posture buried in the ground.

As shown in FIGS. 1 and 2, the composite meter unit 1A includes a unit body 5 and a unit box 6 that houses the unit body 5. As shown in FIGS. The unit body 5 includes an inflow side pipe 11 connected to the primary side pipe 2, four outflow side pipes 12 connected to each of the four secondary side pipes 3, and four inflow side pipes 11. and four water meters 13 detachably connected to the outflow side piping 12 . The inflow-side pipe 11 is a pipe between the primary-side pipe 2 and each water meter 13 . Each outflow side pipe 12 is a pipe between each water meter 13 and each secondary side pipe 3 .

The inflow pipe 11 includes an inflow pipe 16 having a water inflow port 15 and four branch pipes 17 branching from the inflow pipe 16 . The inflow pipe 16 includes a main pipe portion 20 extending linearly in the horizontal direction, a protruding pipe portion 21 protruding from the central portion of the main pipe portion 20 in the direction of the pipe axis L in a direction orthogonal to the pipe axis L in the horizontal direction, Prepare. The inlet 15 is the tip of the projecting tube portion 21 . Each branch pipe 17 branches off from the main pipe section 20 . The four branch pipes 17 extend in parallel in the same direction. In this example, four tributary pipes 17 extend from the main pipe portion 20 in a direction opposite to the protruding pipe portion 21 . In addition, the plurality of branch pipes 17 extend in a direction perpendicular to the main pipe portion 20 and the pipe axis L in parallel.

Hereinafter, the three directions orthogonal to each other are defined as the X direction, the Y direction, and the Z direction. The X direction is the projecting direction of the projecting pipe portion 21 and each branch pipe 17 . Therefore, the pipe axis S of each branch pipe 17 extends in the X direction. In the X direction, the direction in which the protruding pipe portion 21 protrudes is the X1 direction, and the direction in which the branch pipes 17 protrude is the X2 direction. The Y direction is the direction along the tube axis L of the main pipe section 20 . One side of the Y direction is the Y1 direction, and the other side is the Y2 direction. The Z direction is the vertical direction in the installation attitude of the combined meter unit 1A. In the Z direction, the downward direction is the Z1 direction, and the upward direction is the Z2 direction.

Each of the plurality of tributary pipes 17 is provided with a stop cock 22 . Each stopcock 22 opens and closes the channel of each branch pipe 17 . In this example, the stop cock 22 is a ball stop cock. The end of each branch pipe 17 in the X2 direction (the side opposite to the main pipe portion 20) is an outlet 23 from which water flows. Here, among the four branch pipes 17, three branch pipes 17 positioned in the Y2 direction are provided with pipe joints 28 connected to the stopcocks 22. As shown in FIG. Outlet 23 is the end of fitting 28 opposite stopcock 22 . Further, the branch pipe 17 located most in the Y1 direction among the four branch pipes 17 is provided with a supplementary pipe 29 connected to the stop cock 22 respectively. Outlet 23 is the end of supplementary tube 29 opposite stopcock 22 . Here, in this example, the ball stopcocks that constitute the respective branch pipes 17 are integrally formed with the main pipe portion 20 of the inflow pipe 16 in a portion of the valve box that houses the ball valve body.

In addition, as shown in FIG. 2 , the inflow pipe 11 includes a water passage port 25 that communicates with the inflow pipe 16 without passing through the plurality of branch pipes 17 . In this example, the inflow pipe 11 has a communicating pipe 26 that communicates with the main pipe portion 20 , and the water inlet 25 is the end of the communicating pipe 26 opposite to the main pipe portion 20 . The communication pipe 26 communicates with the central portion of the main pipe portion 20 in the Y direction. The water flow port 25 is positioned in the Z2 direction (above) from the plurality of branch pipes 17 . Also, the water flow port 25 opens in the Z2 direction (upward).

More specifically, the communication pipe 26 includes a first extended pipe portion 31 extending downward from the water flow port 25 and a lower end portion of the first extended pipe portion 31 protruding from the main pipe portion 20 in the X2 direction. and a second extension pipe portion 32 . When viewed from the Y direction, the communicating pipe 26 has an L shape. The second extension pipe portion 32 extends between two adjacent branch pipes 17 at the central portion in the Y direction. The second extension pipe portion 32 is coaxial with the projecting pipe portion 21 and coaxial with the inlet 15 . Also, the second extension pipe portion 32 is parallel to each branch pipe 17 . Here, as shown in FIG. 2, an intersection point P where the first pipe axis L1 of the first extension pipe portion 31 and the second pipe axis L2 of the second extension pipe portion 32 intersect is the second extension pipe It is located closer to the main pipe section 20 than the respective outlets 23 of the two branch pipes 17 located on both sides of the section 32 . That is, the intersection point P is positioned in the X1 direction from the outflow ports 23 of the two branch pipes 17 positioned on both sides of the second extended pipe portion 32 .

A lid 33 is detachably attached to the water flow port 25 . The lid body 33 blocks the water flow port 25 so as to be openable and closable.

As shown in FIGS. 1 and 2, water meters 13 are connected to outlets 23 of the plurality of tributary pipes 17, respectively. The water meter 13 consists of an inflow pipe portion 34 having a meter inflow port and a main body portion 35 housing an impeller for measuring the flow rate of water, from the upstream side to the downstream side in the water flow direction D. , and an outlet pipe section 36 with a meter outlet. The inflow tube portion 34 and the outflow tube portion 36 are coaxial.

The inlet pipe section 34 is connected to the outlet 23 of the branch pipe 17 . Thereby, the inflow pipe portion 34 is positioned in the X1 direction of the body portion 35 of the water meter 13 . The main body portion 35 has a display portion 37 for indicating the flow rate at its upper end. The display section 37 is covered with an opening/closing lid 38 . The outflow tube portion 36 extends from the body portion 35 in the X2 direction. Here, when the water meter 13 is viewed from above and below, the width dimension of the body portion 35 is larger than the width dimension of the inflow pipe portion 34 and the outflow pipe portion 36 . When each water meter 13 is connected to each tributary pipe 17, a gap is provided between the body portions 35 of adjacent water meters 13 in the Y direction. Therefore, two adjacent water meters 13 do not contact each other.

Each outflow pipe 12 extends in the X direction. Each outflow pipe 12 includes a connection portion 41 to which the outflow pipe portion 36 is connected, a pipe joint 42 to which the secondary pipe 3 is connected, and a check valve positioned between the connection portion 41 and the pipe joint 42. 43 and. Each of the four outflow-side pipes 12 is parallel. Each outflow-side pipe 12 is coaxial with a branch pipe 17 located opposite in the X direction.

The unit box 6 has a base 45 . A lid (not shown) is put on the base 45 from the Z2 direction side to cover the unit main body 5 . The base 45 includes a rectangular parallelepiped bottom plate portion 46 and a frame portion 47 rising from the outer peripheral edge of the bottom plate portion 46 in the Z2 direction. The inflow-side pipe 11 is fixed to the bottom plate portion 46 by a first support fitting 48 . The outflow pipe 12 is fixed to the bottom plate portion 46 by a second support fitting 49 or the like. As shown in FIG. 2, the frame portion 47 includes a first frame portion 47a that rises from the X1 direction edge of the bottom plate portion 46 and extends in the Y direction, and a first frame portion 47a that rises from the X2 direction edge of the bottom plate portion 46 and extends in the Y direction. a second frame portion 47b extending in the X direction; a third frame portion 47c extending in the X direction and connecting the end of the first frame portion 47a in the Y1 direction and the end of the second frame portion 47b in the Y1 direction; A fourth frame portion 47d connecting the end of the first frame portion 47a in the Y2 direction and the end of the second frame portion 47b in the Y2 direction is provided.

A semicircular first notch 51 extending from the upper edge in the Z1 direction is provided in the center of the first frame portion 47a in the Y direction. The projecting pipe portion 21 of the inflow-side pipe 11 is placed on the first notch 51 from the Z2 direction and penetrates the first notch 51 in the X direction. The projecting pipe portion 21 is supported from the Z1 direction by the edge of the first notch 51 in the first frame portion 47a. The second frame portion 47b is provided with four semicircular second notches 52 extending in the Z1 direction from the upper edge thereof. As shown in FIG. 1, when the composite meter unit 1A is connected to a plurality of secondary side pipes 3, each secondary side pipe 3 is placed in each second notch 52 from the Z2 direction and 2 passes through the notch 52 in the X direction. Each secondary pipe 3 is supported from the Z1 direction by the edge of each second notch 52 in the second frame portion 47b.

(during normal use)
When the composite meter unit 1A is installed, as shown in FIG. 1, the inlet 15 of the inflow pipe 11 of the composite meter unit 1A is connected to the primary pipe 2 extending from the main pipe of the water pipe. A secondary side pipe 3 leading to each house is connected to each outflow side pipe 12 of the composite meter unit 1A. During normal use in which water is supplied to each house via the composite meter unit 1A, the water passage port 25 is closed by the lid 33. As shown in FIG. Also, each stop cock 22 of each branch pipe 17 is opened. Accordingly, water flowing from the primary side pipe 2 into the inlet 15 of the combined meter unit 1A is distributed from the inflow pipe 16 to each branch pipe 17 . The water flowing from the inflow pipe 16 to each branch pipe 17 is measured when passing through the water meter 13 and is supplied from the outflow pipe 12 to each of the four secondary pipes 3 .

(at the time of water intake)
When taking in water from the main pipe of the water pipe via the composite meter unit 1A in the event of a disaster, the lid 33 blocking the water passage 25 is removed from the communication pipe 26 to open the water passage 25.例文帳に追加As a result, a flow path E1 indicated by a chain double-dashed line in FIG.

In this example, each tributary pipe 17 of the inflow pipe 11 is provided with a stop cock 22 for opening and closing the tributary pipe 17 . Further, the water passage port 25 communicates with the inflow pipe 16 without passing through the branch pipe 17 as well. Therefore, when water is taken from the water passage 25, if all the water stopcocks 22 provided for each of the plurality of branch pipes 17 are closed, all the water flowing in from the main pipe of the water pipe will flow out from the water passage 25. can be made Further, when water is taken from the water passage 25, water is supplied to the outside from the water passage 25 by opening the water stop cock 22 of a specific branch pipe 17 and closing the water stop cock 22 of the other branch pipe 17. In addition, water can be circulated only through a water supply system that passes through a specific branch pipe 17 . Therefore, when water is taken from the water passage 25, it is possible to continue supplying water to the doors and facilities that require it.

In this example, in the installation posture, the main pipe portion 20 and the branch pipes 17 extend horizontally, and the water flow port 25 opens in the Z2 direction (upward). Therefore, a water supply pipe or the like for supplying water from the water passage 25 to a target location can be connected to the water passage 25 from the Z2 direction (upward). Therefore, it is easy to connect a water supply pipe to the water passage port 25 of the composite meter unit 1A buried underground.

Furthermore, in this example, the inflow port 15 and the projecting pipe portion 21 of the inflow pipe 16 are provided coaxially with the second extended pipe portion 32 of the communicating pipe 26 . Therefore, it is easy to take in the water flowing through the inlet 15 from the water passage 25 .

Also, in this example, the inflow pipe 11 includes a communication pipe 26 that communicates with the main pipe portion 20, and the plurality of branch pipes 17 protrude from the main pipe portion 20 in the same direction and extend parallel to each other. The water flow port 25 is provided in the communication pipe 26 and positioned in the Z2 direction from the plurality of branch pipes 17 . Therefore, when a water supply pipe or the like is connected to the water flow port 25 , it is possible to prevent the water supply pipe from interfering with each of the plurality of branch pipes 17 .

Furthermore, the communication pipe 26 includes a first extended pipe portion 31 extending in the Z1 direction from the water flow port 25 and a lower end of the first extended pipe portion 31 extending between two adjacent branch pipes 17 from the main pipe portion 20 . and a second extension tube portion 32 connected to the portion. Therefore, compared to the case where the communication pipe 26 projects directly from the main pipe portion 20 in the Z2 direction and the upper end of the communication pipe 26 serves as the water flow port 25, it is easier to adjust the position of the water flow port 25 in the vertical direction Z.

Here, generally, the water meter 13 consists of an inflow pipe portion 34 having a meter inflow port and an impeller for measuring the flow rate of water, which is arranged from the upstream side to the downstream side in the water flow direction D. and an outlet tube portion 36 with a meter outlet. Further, when the water meter 13 is viewed from above and below, the width dimension of the body portion 35 is larger than the width dimension of the inflow pipe portion 34 and the outflow pipe portion 36 . Therefore, when the communicating pipe 26 is provided between the two adjacent tributary pipes 17, the body portion 35 of the water meter 13 connected to the two adjacent tributary pipes 17 and the communicating pipe 26 come into contact with each other. there's a possibility that. On the other hand, in this example, the intersection point P where the first pipe axis L of the first extended pipe portion 31 and the second pipe axis L of the second extended pipe portion 32 intersect is the second extended pipe portion It is located closer to the main pipe section 20 than the respective outlets 23 of the two tributary pipes 17 on either side of 32 . Therefore, even when the communication pipe 26 is provided between the two branch pipes 17, when the water meter 13 is connected to the two branch pipes 17 on both sides of the communication pipe 26, the first extension pipe portion of the communication pipe 26 31 can be prevented from coming into contact with the body portion 35 of the water meter 13 .

(Modification)
FIG. 3 is a perspective view of a composite meter unit that is a modification of the first embodiment. In the composite meter unit 1</b>B of this example, the inflow pipe 11 is provided with an on-off valve 55 for opening and closing the inflow port 15 in the inflow pipe 16 . More specifically, an on-off valve 55 is provided on the projecting pipe portion 21 of the inflow pipe 16 . As a result, the end of the on-off valve 55 in the X1 direction becomes the inflow port 15 , and the on-off valve 55 opens and closes the inflow port 15 of the inflow pipe 16 . The on-off valve 55 is a ball stopcock. In addition, in the composite meter unit 1B of Modification 1, the configuration other than the on-off valve 55 is the same as that of the composite meter unit 1A described above. Accordingly, the corresponding components are denoted by the same reference numerals as those of the composite meter unit 1A, and descriptions thereof are omitted.

In the composite meter unit 1B of this example, when water is taken from the main pipe of the water pipe, the on-off valve 55 is closed to stop the inflow of water from the main pipe to the inflow pipe 16 . Also, the stop cocks 22 provided in each of the plurality of tributary pipes 17 are closed. Next, the lid 33 that blocks the water flow port 25 is removed from the communicating pipe 26 to open the water flow port 25 . After that, the on-off valve 55 is closed to allow water to flow from the primary side pipe 2 into the inflow pipe 16 , thereby allowing water intake from the water passage port 25 . According to this example, the amount of water flowing out from the water passage 25 can be adjusted by opening and closing the on-off valve 55 .

Further, in this example, when the main pipe of the water pipe is cut off due to a disaster or the like, the water supplied from the water truck can be supplied to each house via the composite meter unit 1B. That is, when the water supply is interrupted, the inflow port 15 is closed by the on-off valve 55, the lid 33 is removed from the water flow port 25, and the water supply pipe of the water truck is connected to the water flow port 25. As a result, water flowing into the composite meter unit 1B from the water inlet 25 through the water supply pipe is distributed from the main pipe portion 20 of the inflow pipe 16 to each branch pipe 17 and supplied to each house in the building. Therefore, in buildings used as evacuation centers, hospitals, and various other facilities, water from a water tanker can be delivered directly to places in the building that require water. Also, the amount of water delivered to each location can be measured.

(Example 2)
FIG. 4 is a perspective view of the composite meter unit of this example. 5 and 6 are explanatory diagrams of the rotary operation mechanism provided in the compound meter unit of this example.

The composite meter unit 1C of this example is installed in the middle of a pipe drawn into the building from the main pipe of the water pipe. As shown in FIG. 4 , the composite meter unit 1C distributes water from a primary side pipe 2 communicating with a main pipe of a water pipe to a plurality of secondary side pipes 3 . In addition, the composite meter unit 1C supplies the distributed water to each secondary side pipe 3 while measuring it with the water meter 13 . In this example, the composite meter unit 1</b>C includes five secondary side pipes 3 .

In the following description, the composite meter unit 1C will be described in an installation posture in which it is installed along the outer wall of a building. Also, as in the first embodiment, three mutually orthogonal directions are the X direction, the Y direction, and the Z direction. Note that the compound meter unit 1C of the present example has a configuration corresponding to that of the compound meter unit 1C of the first embodiment, so the corresponding configurations are given the same reference numerals.

The composite meter unit 1</b>C includes a unit body 5 and a unit box 6 that houses the unit body 5 . The unit main body 5 includes an inflow-side pipe 11 connected to the primary-side pipe 2, five outflow-side pipes 12 connected to each of the four secondary-side pipes 3, and an inflow-side pipe 11. and five water meters 13 detachably connected to the outflow side piping 12 . The inflow-side pipe 11 is a pipe between the primary-side pipe 2 and each water meter 13 . Each outflow side pipe 12 is a pipe between each water meter 13 and each secondary side pipe 3 . The composite meter unit 1C also includes five connection bases 8 that connect the inflow side pipe 11 and each outflow side pipe 12 .

The inflow pipe 11 includes an inflow pipe 16 having a water inflow port 15 and a plurality of branch pipes 17 branching from the inflow pipe 16 . The inflow-side pipe 11 includes a main pipe portion 20 linearly extending in the Z direction (vertical direction). The inlet 15 is the lower end of the mains section 20 . Each branch pipe 17 branches from the main pipe portion 20 in the X2 direction perpendicular to the main pipe portion 20 and the pipe axis L. As shown in FIG. The multiple tributary tubes 17 are parallel. In this example, there are five branch pipes 17 .

Each of the five tributary pipes 17 includes a connection pipe portion 61 connected to the main pipe portion 20, a first adapter 62, and a stop cock 22. The first adapter 62 is fixed to the connecting pipe portion 61 and connects the connecting pipe portion 61 and the stop cock 22 so as to be relatively rotatable around the pipe axis S of each branch pipe 17 . Each stopcock 22 opens and closes the channel of each branch pipe 17 . In this example, the stop cock 22 is a ball stop cock. The end of each branch pipe 17 in the X2 direction (the side opposite to the main pipe portion 20) is an outlet 23 from which water flows. Each branch pipe 17 has a crimping mechanism 24 between the stop cock 22 and the outflow port 23 . The crimping mechanism 24 has a well-known configuration. The crimping mechanism 24 includes, for example, a first pipe member connected to the water shutoff valve 22, a second pipe member coaxially arranged with the first pipe member, and connecting the second pipe member to the first pipe member. and a moving mechanism for advancing and retreating with respect to the member. The end of the second tube member opposite the first tube member is the outlet 23 . The crimping mechanism 24 crimps the outflow port 23 to the water meter 13 by advancing and retracting the second pipe member.

The inflow pipe 11 also includes a water passage port 25 that communicates with the inflow pipe 16 without passing through the five branch pipes 17 . In this example, the inflow pipe 11 includes a communication pipe 26 that communicates with the main pipe portion 20 of the inflow pipe 16 , and the end of the communication pipe 26 opposite to the main pipe portion 20 serves as a water flow port 25 . there is The communicating pipe 26 communicates with the lower end portion of the main pipe portion 20 . The communication pipe 26 projects in the Y2 direction from the main pipe portion 20, and the water flow port 25 opens in the Y2 direction.

Here, a lid 33 is detachably attached to the water flow port 25 . The lid 33 closes the water flow port 25 . Water meters 13 are connected to the outlets 23 of the five tributary pipes 17, respectively.

Each outflow pipe 12 extends in the X direction. Each outflow-side pipe 12 is coaxial with each branch pipe 17 located opposite to each other in the X direction. Each outflow-side pipe 12 includes a connection portion 65 to which the water meter 13 is connected, a second adapter 66 to which the secondary-side pipe 3 is connected, and a check valve located between the connection portion 65 and the second adapter 66 . a valve 43; The second adapter 66 is fixed to the secondary side pipe 3 and connects the connecting portion 65 and the check valve 43 to the secondary side pipe 3 so as to be rotatable around the pipe axis S of each branch pipe 17 .

The connection base 8 connects each branch pipe 17 of the inflow pipe 11 closer to the water meter 13 than the first adapter 62 to the water meter 13 side than the second adapter 66 of the outflow pipe 12 . In this example, the connection base 8 connects the stop cock 22 and the check valve 43 . Therefore, the unit portion 67 consisting of the connection base 8, the water stop valve 22, the water meter 13, and the check valve 43 is rotatable around the pipe axis L1 of each branch pipe 17 by the first adapter 62 and the second adapter 66. is.

The unit box 6 includes a rectangular parallelepiped case 71 that is open in the Y2 direction, and a frame 72 that is fixed inside the case 71 . The unit box 6 also includes an opening/closing door (not shown) that closes the opening of the case 71 from the Y2 direction side.

The frame 72 includes a rectangular plate-like plate portion 73 whose thickness direction is oriented in the Y2 direction of the unit main body, and a first vertical plate portion that protrudes in the Y2 direction from the edge of the plate portion 73 in the X1 direction and extends in the vertical direction Z. A plate portion 74, a second vertical plate portion 75 that protrudes in the Y2 direction from the edge of the plate portion 73 in the X2 direction and extends in the vertical direction Z, a bottom plate portion 76 that protrudes in the Y2 direction from the lower edge of the plate portion 73, Prepare. The first vertical plate portion 74 and the second vertical plate portion 75 are parallel and face each other in the X direction.

The inflow-side pipe 11 is supported by the first vertical plate portion 74 . More specifically, five first fixing holes 77 arranged in the vertical direction Z are provided in the first vertical plate portion 74 . The main pipe portion 20 of the inflow pipe 16 is positioned in the X1 direction of the first vertical plate portion 74 . Each branch pipe 17 passes through the first fixing holes 77 in the X direction while the first adapters 62 are fixed to the opening edges of the first fixing holes 77 in the first vertical plate portion 74 .

The outflow pipe 12 is supported by the second vertical plate portion 75 . More specifically, the second vertical plate portion 75 is provided with five second fixing holes 78 arranged in the vertical direction Z. As shown in FIG. Each outflow-side pipe 12 passes through the second fixing holes 78 in the X direction while the second adapters 66 are fixed to the opening edges of the second fixing holes 78 in the second vertical plate portion 75 . When the inflow side pipe 11 and the outflow side pipe 12 are supported by the first vertical plate portion 74 and the second vertical plate portion 75, the connection base 8, the stop cock 22, the water meter 13, and the check valve 43 are provided. The unit portion 67 is rotatably supported around the axis S by the first vertical plate portion 74 and the second vertical plate portion 75 .

Here, the composite meter unit 1</b>C includes a rotation operation mechanism 80 that rotates each unit portion 67 connected to each branch pipe 17 around the pipe axis S of each branch pipe 17 . As shown in FIGS. 5 and 6, the rotation operation mechanism 80 includes a plurality of first link members 81, second link members 82, and an operation lever 83. As shown in FIGS. The rotation operation mechanism 80 also includes a support portion 84 that supports the second link member 82 from the Z1 direction (downward). Note that FIG. 5 shows a state in which each water meter 13 is in a reference posture in which the display portion 37 (opening/closing lid 38) faces the Z2 direction (upward). FIG. 6 shows a state in which each water meter 13 is in a meter checkable posture in which the display portion 37 (opening/closing lid 38) is inclined in the Y2 direction of the Z2 direction (upward).

As shown in FIGS. 5 and 6, each first link member 81 includes a fixed portion 81a fixed closer to the water meter 13 than the second adapter 66 in each outflow side pipe 12, and a fixed portion 81a fixed to the outflow side from the fixed portion 81a. and a protruding portion 81 b protruding radially outward of the pipe 12 . The second link member 82 extends in the Z-axis direction in the Y1 direction of the outflow-side pipe 12 . The second link member 82 is connected to the tip of the projecting portion 81 b of each first link member 81 . The operation lever 83 is a rod-shaped member extending in the Z direction (vertical direction) and is positioned in the Y2 direction of the outflow pipe 12 . The lower end portion of the operating lever 83 is fixed closer to the water meter 13 than the second adapter 66 in the second outflow side pipe 12 from the bottom. A grip 83 a for gripping the operating lever 83 is provided at the upper end portion of the operating lever 83 . When the operation lever 83 extends in the Z direction, the support portion 84 contacts the second link member 82 from the Z2 direction side. When the operating lever 83 inclines in the Z1 direction toward the Y2 direction, the second link member 82 separates from the support portion 84 in the Z1 and Y1 directions.

(during normal use)
As shown in FIG. 4, the primary side pipe 2 extending from the main pipe of the water pipe is connected to the inflow port 15 of the inflow side pipe 11 of the composite meter unit 1C. A secondary side pipe 3 leading to each house is connected to each outflow side pipe 12 of the composite meter unit 1C. During normal use of the composite meter unit 1</b>C, the water passage port 25 is closed by the lid 33 . Each stop cock 22 of each branch pipe 17 is in an open state. Accordingly, water flowing from the primary side pipe 2 into the inlet 15 of the combined meter unit 1C is distributed from the inflow pipe 16 to the plurality of branch pipes 17 . Water flowing from the inflow pipe 16 to each branch pipe 17 is measured when passing through the water meter 13 and is supplied from the outflow pipe 12 to each of the five secondary pipes 3 .

Here, in the compound meter unit 1C of this example, when the grip 83a of the operation lever 83 of the rotary operation mechanism 80 is pulled out in the Y2 direction, as shown in FIG. The portion 67 rotates around the pipe axis S of the second branch pipe 17 from the bottom. Also, since this rotation is transmitted to the other unit portions 67 via the first link member 81 and the second link member 82, all the other unit portions 67 rotate simultaneously with the rotation of the second unit portion 67 from the bottom. Each branch pipe 17 rotates around the pipe axis S. As a result, each water meter 13 assumes a meter checkable posture in which the display portion 37 (opening/closing lid 38) can be viewed from the Y2 direction. Therefore, it is easy to check the flow rate of water that has passed through each water meter 13 . When the grip 83a pulled out in the Y2 direction is moved in the Y1 direction and returned to its original position, each water meter 13 returns to the reference posture in which the display portion 37 (open/close lid 38) faces the Z2 direction.

(at the time of water intake)
When taking in water from the main pipe of the water pipe via the composite meter unit 1C in the event of a disaster, the lid 33 blocking the water flow port 25 is removed from the communication pipe 26 to open the water flow port 25.例文帳に追加As a result, a flow path E2 indicated by a chain double-dashed line in FIG.

Also in this example, each tributary pipe 17 of the inflow pipe 11 is provided with a stopcock 22 for opening and closing the tributary pipe 17 . Further, the water passage port 25 communicates with the inflow pipe 16 without passing through the branch pipe 17 as well. Therefore, when water is taken from the water passage 25, if all the water stopcocks 22 provided for each of the plurality of branch pipes 17 are closed, all the water flowing in from the main pipe of the water pipe will flow out from the water passage 25. can be made Further, when water is taken from the water passage 25, water is supplied to the outside from the water passage 25 by opening the water stop cock 22 of a specific branch pipe 17 and closing the water stop cock 22 of the other branch pipe 17. In addition, water can be circulated only through a water supply system that passes through a specific branch pipe 17 . Therefore, when water is taken from the water passage 25, it is possible to continue supplying water to the doors and facilities that require it.

Moreover, in this example, the water flow port 25 opens in the Y2 direction in the installation attitude. Therefore, a water supply pipe or the like for supplying water from the water passage 25 to a target location can be connected to the water passage 25 from the lateral direction.

(Modification)
FIG. 7 is a perspective view of a compound meter unit of Modification 2. FIG. In the composite meter unit 1</b>D of this example, the inflow pipe 11 includes an on-off valve 55 that opens and closes the inflow port 15 in the inflow pipe 16 . More specifically, the inflow pipe 16 is provided with an on-off valve 55 at the lower end of the main pipe portion 20 . As a result, the lower end of the on-off valve 55 becomes the inflow port 15 , and the on-off valve 55 opens and closes the inflow port 15 of the inflow pipe 16 . The on-off valve 55 is a ball stopcock. Here, in the composite meter unit 1D of Modification 2, the configuration other than the on-off valve 55 is the same as that of the composite meter unit 1C described above. Accordingly, the corresponding components are denoted by the same reference numerals as those of the composite meter unit 1C, and descriptions thereof are omitted.

In the composite meter unit 1D of this example, when water is taken from the main pipe of the water pipe, the on-off valve 55 is closed to stop the inflow of water from the main pipe to the inflow pipe 16 . Also, the stopcocks 22 provided in each of the five branch pipes 17 are closed. Furthermore, the lid 33 that blocks the water flow port 25 is removed from the communicating pipe 26 to open the water flow port 25 . After that, the on-off valve 55 is closed to allow water to flow from the primary side pipe 2 into the inflow pipe 16 , thereby allowing water intake from the water passage port 25 . According to this example, the amount of water flowing out from the water passage 25 can be adjusted by opening and closing the on-off valve 55 .

Further, in this example, water supplied from a water truck can be supplied into the building via the composite meter unit 1D in the event of a water outage in the main water pipe due to a disaster or the like. That is, when the water supply is interrupted, the inflow port 15 is closed by the on-off valve 55, the lid 33 is removed from the water flow port 25, and the water supply pipe of the water truck is connected to the water flow port 25. As a result, the water flow port 25
Water flowing into the composite meter unit 1D through the water supply pipe is distributed from the main pipe portion 20 of the inflow pipe 16 to each branch pipe 17 and supplied to each house in the building. Therefore, in buildings used as evacuation centers, hospitals, and various other facilities, water can be delivered directly from the water tanker to areas in the building that require water. Also, the amount of water delivered to each location can be measured.

DESCRIPTION OF SYMBOLS 1... Composite meter unit, 2... Primary side piping, 3... Secondary side piping, 5... Unit main body, 6... Unit box, 8... Connection base, 11... Inflow side piping, 12... Outflow side piping, 13... Water meter , 15... inflow port, 16... inflow pipe, 17... branch pipe, 20... main pipe portion, 21... protruding pipe portion, 22... stop cock, 23... outflow port, 24... crimping mechanism, 25... water flow port, 26 Communicating pipe 28 Pipe joint 29 Supplementary pipe 31 First extended pipe portion 32 Second extended pipe portion 33 Lid 34 Inflow pipe portion 35 Body portion 36 Outflow tube portion 37 Display portion 38 Open/close lid 41 Connection portion 42 Pipe joint 43 Check valve 45 Base 46 Bottom plate portion 47 Frame portion 47a First frame portion , 47b... second frame portion, 47c... third frame portion, 47d... fourth frame portion, 48... first support metal fitting, 49... second support metal fitting, 51... first notch, 52... second notch, 55... ON-OFF VALVE 61 CONNECTION PIPE 62 FIRST ADAPTER 65 CONNECTION 66 SECOND ADAPTER 67 UNIT 71 CASE 72 FRAME 73 PLATE 74 FIRST VERTICAL PLATE Part 75 Second vertical plate portion 76 Bottom plate portion 77 First fixing hole 78 Second fixing hole 80 Rotational operation mechanism 81 First link member 81a Fixed portion 81b Projection Section 82 Second link member 83 Operation lever 83a Grip 84 Supporting portion L Pipe shaft of main pipe portion L1 Pipe shaft of first extension pipe portion L2 Second extension Pipe axis S of the pipe section...Pipe axis of the tributary pipe

Claims (8)

an inflow pipe comprising an inflow pipe having a water inflow port, a plurality of branch pipes branching from the inflow pipe, and a water passage port communicating with the inflow pipe without passing through the plurality of branch pipes;
a lid that openably and closably closes the water passage,
Each tributary pipe is provided with a stopcock for opening and closing the tributary pipe,
A composite meter unit, wherein a water meter is connected to a water outlet of each branch pipe. The inflow pipe includes a main pipe portion extending linearly,
Each tributary pipe branches off from the main pipe portion,
2. The composite meter unit according to claim 1, wherein said main pipe portion and each of said branch pipes extend in a horizontal direction and said water inlet opens upward in an installation posture. The inflow-side pipe includes a communicating pipe that communicates with the main pipe portion,
the plurality of branch pipes protrude in the same direction from the main pipe portion and extend parallel to each other;
The water flow port is provided in the communication pipe and positioned above the plurality of branch pipes,
The communication pipe includes a first extended pipe portion extending downward from the water passage port, and extending between the two adjacent branch pipes from the main pipe portion and connected to a lower end portion of the first extended pipe portion. 3. The composite meter unit according to claim 2, further comprising a second extension pipe portion. The intersections of the first pipe axis of the first extended pipe portion and the second pipe axis of the second extended pipe portion are the two branch pipes on both sides of the second extended pipe portion. 4. The composite meter unit according to claim 3, wherein the outlet is closer to the main pipe portion than the outlet of the. 5. The composite meter unit according to claim 3, wherein the inlet is provided coaxially with the second extension pipe portion. The inflow pipe includes a main pipe portion extending linearly,
Each tributary pipe branches off from the main pipe portion,
2. The composite meter unit according to claim 1, wherein said main pipe portion extends vertically and said water inlet opens in a direction intersecting said main pipe portion in an installation posture. The inflow-side pipe includes a communicating pipe that communicates with the main pipe portion,
the plurality of branch pipes protrude in the same direction from the main pipe portion;
The water passage port is provided at the tip of the communicating pipe,
7. The composite meter unit according to claim 6, wherein the communication pipe protrudes from the main pipe portion in a direction different from that of the plurality of branch pipes. The composite meter unit according to any one of claims 1 to 7, wherein the inflow pipe includes an on-off valve that opens and closes the inflow port.

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