JP7593773B2 - Faucet socket and faucet - Google Patents

Description

The present invention relates to a faucet socket and a faucet.

2. Description of the Related Art Conventionally, there is a faucet socket having a faucet connection part that is connected to a faucet body, a pipe connection part that is connected to a pipe, and a flow path that communicates between these pipe connection parts and the faucet connection part.
For example, the faucet described in Patent Document 1 includes hot water and cold water faucet sockets that are connected to hot water and cold water supply ports provided on the faucet body, respectively. By connecting these faucet sockets to hot water and cold water supply pipes, the faucet is configured as a hot and cold water mixing faucet that can mix the running water flowing through these supply pipes, i.e., cold water and hot water, and discharge the water from the faucet body.

The hot water faucet socket has, as its piping connections, a first water supply piping connection section connected to a water supply piping for a hot water heater with a heat source, such as a gas type or electric type, and a second water supply piping connection section connected to a water supply piping for a solar water heater. The water faucet socket has, as its piping connections, a water supply piping connection section connected to a water side water supply piping for supplying cold water to the faucet body via the faucet socket, and a water supply piping connection section connected to a water supply piping for supplying cold water that has flowed into the faucet socket to the solar water heater. Each of these faucet sockets is provided with a switching valve configured to be able to switch the supply path of running water via each piping connection section.

In other words, by operating the switching valve provided on the hot water side faucet socket, this conventional faucet can switch between a state in which hot water is supplied from the water supply pipe for the hot water heater connected to its first water supply pipe connection part, and a state in which hot water is supplied from the water supply pipe for the solar water heater connected to its second water supply pipe connection part. Then, by operating the switching valve provided on the water side faucet socket, a supply path for running water to the solar water heater via the water supply pipe connected to the water supply pipe connection part can be formed.

Japanese Unexamined Patent Publication No. 57-116981

However, in a faucet that uses a faucet socket with multiple pipe connections as described above, when replacing and maintaining the faucet body, it is necessary to stop the water flow to each pipe connected to each pipe connection. For example, when using a solar water heater as in the faucet of the conventional example described above, it is necessary to operate the main valve or the like to stop the water supply pipe on the water side, the water supply pipe for the hot water heater, and the water supply pipe for the solar water heater upstream of the faucet socket in advance, and it is also necessary to stop the water flow to the water supply pipe for the solar water heater or to drain the water to prevent backflow. This causes the problem that replacement and maintenance work of the faucet body becomes cumbersome.

The faucet socket that solves the above problem includes a faucet connection part that is connected to the faucet body, a number of pipe connection parts that are connected to pipes, a flow path that connects each of the pipe connection parts to the faucet connection part, and a stop valve that is provided midway through the flow path and blocks communication between each of the pipe connection parts and the faucet connection part.

The above configuration makes it possible to stop all of the water flowing through each pipe connection from entering the flow path through the faucet connection to the outside of the faucet socket. This makes it easy to replace and maintain the faucet body connected to the faucet connection.

The faucet socket that solves the above problem preferably has a tubular socket body that forms the flow path, and the faucet connection part and the stop valve are arranged together at one end of the socket body in the axial direction.

According to the above configuration, the stop valve can be placed just before the faucet connection in the flow path. This can reduce the amount of residual water between the stop valve and the faucet connection. As a result, replacement and maintenance work for the faucet body can be performed more easily. In addition, placing the stop valve near the faucet connection has the advantage that the appropriate water stop work can be performed intuitively without prior knowledge.

A faucet socket that solves the above problem preferably includes the faucet connection part that opens in a direction intersecting the axis of the socket body, and the stop valve that extends in the axial direction of the socket body.

According to the above-mentioned configuration, the water faucet connection portion and the stop valve can be arranged compactly, and thus the water faucet socket can be made compact.
In the faucet socket that solves the above problem, it is preferable that a switching valve configured to be able to switch the supply path of running water via each of the piping connections is provided midway along the flow path.

According to the above configuration, it is possible to improve convenience for users.
A faucet socket that solves the above problem preferably has, as the piping connection portion, a plurality of water supply piping connection portions that are connected to water supply piping for supplying water to the flow path, and the switching valve is preferably configured to be capable of switching the supply path of the running water flowing into the flow path via each of the water supply piping connection portions.

The above configuration allows easy switching between multiple supply paths that supply running water to the flow path of the faucet socket. This improves user convenience.

The faucet socket that solves the above problem is preferably configured to include, as the piping connection part, a water supply piping connection part connected to a water supply piping for supplying water to the flow path, and a water supply piping connection part for sending the running water that has flowed into the flow path via the water supply piping connection part out of the flow path, and the switching valve is preferably configured to be able to switch between a first water supply state in which the running water that has flowed into the flow path via the water supply piping connection part is supplied to the faucet main body connected to the faucet connection part, and a second water supply state in which the running water that has flowed into the flow path via the water supply piping connection part is supplied to the faucet main body connected to the faucet connection part and to the water supply piping connected to the water supply piping connection part.

According to the above configuration, it is easy to switch between a state in which the flowing water flowing through the water supply pipe is supplied to the faucet body and a state in which the flowing water flowing through the water supply pipe is supplied to the faucet body and the water supply pipe. This improves convenience for users. Furthermore, by providing the above-mentioned water stop valve in a faucet socket equipped with such a water supply pipe connection section, it is possible to stop the water flowing back from the water supply pipe from flowing back toward the faucet body.

A faucet that solves the above problem includes any of the faucet sockets described above.

According to the present invention, replacement and maintenance of the faucet body can be easily performed.

FIG. 1 is a schematic diagram of a hot water supply system to which the faucet is applied. Front view of the hot water faucet socket. Front view of the water faucet socket. Cross-sectional view of the hot water faucet socket (cross-section IV-IV in Figure 2). Cross-sectional view of the water side faucet socket (VV cross section in Figure 3). FIG. FIG.

Hereinafter, one embodiment of a faucet socket and a faucet will be described with reference to the drawings.
As shown in Fig. 1, the faucet 1 of this embodiment has a faucet body 4 equipped with a hot water supply port 2A, each cold water supply port 2B, and a discharge port 3 communicating with each of the hot water and cold water supply ports 2. The faucet 1 of this embodiment also has a hot water faucet socket 5A connected to the hot water supply port 2A provided on the faucet body 4, and a cold water faucet socket 5B connected to the cold water supply port 2B also provided on the faucet body 4. The faucet 1 of this embodiment has a configuration as a wall-mounted hot and cold water mixing faucet in which the hot water and cold water faucet sockets 5A, 5B are connected to a hot water supply pipe 7 and a cold water supply pipe 8, respectively, arranged on the back side of a wall portion 6 constituting the mounting surface of the faucet 1.

More specifically, as shown in Figures 1 to 5, each faucet socket 5 has a faucet connection 10 that is connected to the water supply port 2 of the faucet body 4. In the faucet 1 of this embodiment, each of these faucet sockets 5 has a plurality of pipe connections 20 that are connected to pipes 15. Furthermore, each of these faucet sockets 5 has a flow path 25 that connects each of these pipe connections 20 to the faucet connection 10. And each of the faucet sockets 5 of this embodiment has a switching valve 30 that is configured to be able to switch the supply path of running water via each of the pipe connections 20.

1, 2, and 4, the hot water side faucet socket 5A has, as its piping connection 20, first and second water supply piping connections 41, 42 connected to the hot water side water supply piping 40 for supplying water to the flow path 25A of the faucet socket 5A in order to supply hot water to the faucet body 4. In the faucet 1 of this embodiment, the first water supply piping connection 41 is connected to a water heater water supply piping 44 extending from a water heater 43 with a heat source, such as a gas type or electric type. The second water supply piping connection 42 is connected to a water heater water supply piping 46 extending from a solar water heater 45 installed on a roof, for example. The hot water faucet socket 5A is capable of switching the supply path of the running water flowing into the flow path 25A via the first and second water supply pipe connections 41, 42 based on the operation of the switching valve 30A provided in the middle of the flow path 25A.

Specifically, in the faucet 1 of this embodiment, the hot water side faucet socket 5A is switched to a state in which running water flows into the flow path 25A via the first water supply pipe connection part 41 by operating the operating handle 48A of the switching valve 30A counterclockwise in FIG. 2. As a result, the faucet 1 of this embodiment is configured so that hot water flowing through the water supply pipe 44 for the water heater, which is configured as the hot water side water supply pipe 7 arranged on the back side of the wall part 6, is supplied to the faucet body 4 via the hot water side faucet socket 5A.

In addition, by operating the operating handle 48A of the switching valve 30A clockwise in FIG. 2, the hot water side faucet socket 5A is switched to a state in which running water flows into the flow path 25A via the second water supply pipe connection part 42. As a result, the faucet 1 of this embodiment is configured so that hot water flowing through the water supply pipe 46 for the water heater is supplied to the faucet body 4 via the hot water side faucet socket 5A.

On the other hand, as shown in Figs. 1, 3, and 5, the water-side faucet socket 5B has a water supply pipe connection 51 connected to the water-side water supply pipe 50 for supplying water to the flow path 25B of the faucet socket 5B as its pipe connection 20 in order to supply cold water to the faucet body 4. The water-side faucet socket 5B also has a water supply pipe connection 52 for sending the running water that has flowed into the flow path 25B through the water supply pipe connection 51 to the outside of the flow path 25B. Furthermore, in the faucet 1 of this embodiment, the water supply pipe connection 52 is connected to a water heater water supply pipe 53 for sending water to the solar hot water heater 45. The water-side faucet socket 5B can switch the supply path of running water through the water supply pipe connection 51 and the water supply pipe connection 52 based on the operation of the switching valve 30B provided in the middle of the flow path 25B.

Specifically, in the faucet 1 of this embodiment, the water-side faucet socket 5B is switched to a first water supply state in which running water flowing into the flow path 25B through the water supply pipe connection part 51 is supplied to the faucet body 4 connected to the faucet connection part 10 by operating the operating handle 48B of the switching valve 30B clockwise in Fig. 3. Also, the water-side faucet socket 5B is switched to a second water supply state in which running water flowing into the flow path 25B through the water supply pipe connection part 51 is supplied to the faucet body 4 connected to the faucet connection part 10 and the water supply pipe 53 connected to the water supply pipe connection part 52 by operating the operating handle 48B of the switching valve 30B counterclockwise in Fig. 3. The faucet 1 of this embodiment is thus capable of switching between a single supply path in which the water flowing through the water supply pipe 50, which is configured as the water supply pipe 8 arranged on the back side of the wall portion 6, is supplied to the faucet body 4 via the water side faucet socket 5B, and a dual supply path in which the water is supplied to the faucet body 4 and the solar hot water heater 45.

As shown in Figures 1 to 7, each faucet socket 5 in this embodiment is provided with a stopcock 60 in the flow path 25 that blocks communication between each pipe connection 20 and the faucet connection 10.

In more detail, each faucet socket 5 of this embodiment has a tubular socket body 70 that constitutes its flow path 25. Specifically, this socket body 70 has a body portion 71 having a cylindrical outer shape that extends in a substantially straight line. In addition, the socket body 70 has a short tube portion 72 that protrudes radially from the outer periphery of the body portion 71 at one end (the upper end in Figures 4 and 5) in the axial direction along the extension direction of the body portion 71. Furthermore, the socket body 70 has a communication hole 73 that communicates the inside of the short tube portion 72 with the inside of the body portion 71. Thus, each faucet socket 5 of this embodiment is configured so that the faucet connection portion 10 is formed using the short tube portion 72 that opens in a direction that intersects with the axis L of the socket body 70.

In addition, each faucet socket 5 of this embodiment is equipped with a cylindrical gland 74 that is screwed into a threaded portion 72x provided on the inner circumference of the short cylindrical portion 72 that constitutes the faucet connection portion 10, and a connecting nut 75 that fits onto the outer circumference of the gland 74. The faucet 1 of this embodiment is configured so that the faucet connection portion 10 of each faucet socket 5 and the water inlet 2 of the faucet body 4 are connected based on the fastening force of the connecting nut 75.

The socket body 70 of this embodiment is configured such that the body 71 opens in the axial direction (upper side in Figures 4 and 5) at one end in the axial direction where the short tubular portion 72 constituting the faucet connection portion 10 is provided as described above. Each faucet socket 5 of this embodiment is equipped with a stop valve unit 80 that is attached to the open end 76 of the body 71.

Specifically, the stop valve unit 80 of this embodiment includes a housing portion 81 that is screwed into a screw portion 76x provided on the inner circumference of the opening end 76, and an axial plug body 83 that is inserted into a through hole 82 provided in the housing portion 81. The socket body 70 of this embodiment also has a small diameter portion 84 provided in the barrel of the barrel 71 at a position (lower position in Figures 4 and 5) that is axially spaced from the opening end 76 by the communication hole 73 that connects the inside of the short barrel portion 72 that constitutes the water faucet connection portion 10 with the inside of the barrel of the barrel 71. Furthermore, the stop valve unit 80 of this embodiment is attached to the opening end 76 of the barrel 71 that constitutes the socket body 70 with the tip portion 83a of the plug body 83 screwed into the screw portion 84x provided in the small diameter portion 84. The tip 83a of the plug 83 is tubular with a hole that allows water to pass through the small diameter portion 84 into which the tip 83a screws. The water stop valve unit 80 of this embodiment is fixed to the plug 83, and is provided with a gasket 85 that is disposed inside the cylinder of the body 71 at a position closer to the opening end 76 than the small diameter portion 84 (the upper position in Figures 4 and 5).

That is, the stopcock unit 80 of this embodiment can rotate the stopcock 83 from outside the socket body 70 by operating the base end 83b of the stopcock 83. In addition, in each faucet socket 5 of this embodiment, the base end 83b of the stopcock 83 is provided with a fitting groove 86 for using a tool or the like. Furthermore, based on the rotation of the stopcock 83, the packing 85 fixed to the stopcock 83 moves axially inside the cylinder of the body 71 that constitutes the socket body 70. In each faucet socket 5 of this embodiment, the packing 85 closes the small diameter portion 84 provided inside the cylinder of the body 71, thereby forming a stopcock 60 that blocks communication between each pipe connection 20 and the faucet connection 10.

In this way, each faucet socket 5 of this embodiment has a configuration in which the faucet connection part 10 that opens in a direction intersecting the axis of the socket body 70 and the stop valve 60 that extends in the axial direction of the socket body are provided together at one end of the axial direction of the socket body 70. In each faucet socket 5 of this embodiment, this makes it possible to collectively stop the flow of water that has flowed into the flow path 25 via each piping connection part 20 and flows out from the faucet connection part 10 to the outside by operating the stop valve 60.

As shown in Figures 1, 2, 4, and 6, the hot water faucet socket 5A has a first end 70Aa at one end in the axial direction of the socket body 70A on which the faucet connection 10A and the stop valve 60A are integrated, and has first and second water supply pipe connection parts 41, 42 at a second end 70Ab opposite to the first end 70Aa.

In more detail, the socket body 70A of this embodiment has a short cylinder portion 101 at its second end 70Ab that protrudes radially (left side in FIG. 4) from the outer periphery of the body portion 71A. In the socket body 70A of this embodiment, this short cylinder portion 101 protrudes in a direction opposite to the short cylinder portion 72 that constitutes the faucet connection portion 10A provided at the first end 70Aa. Furthermore, the socket body 70A has a communication hole 102 that communicates the inside of the body portion 71A with the inside of the short cylinder portion 101. Thus, the faucet socket 5A of this embodiment is configured such that the first water supply pipe connection portion 41 that is connected to the water supply pipe 44 for the water heater is formed using the short cylinder portion 101 that opens in a direction intersecting the axis La of the socket body 70A.

Specifically, the faucet socket 5A of this embodiment is provided with a backflow prevention unit 103 attached to the short tubular portion 101 constituting the first water supply pipe connection portion 41. The faucet socket 5A also has straight tube-shaped connection members 104, 105 that are coaxially connected to the short tubular portion 101. In the faucet socket 5A of this embodiment, each of these connection members 104, 105 is connected to the short tubular portion 101 using a nut member 106. In detail, each of these connection members 104, 105 and the nut member 106 are unitized in a state in which the connection member 104 is screwed into the tube of the connection member 105 and the nut member 106 is fixed rotatably to the outer periphery of the connection member 105. The faucet socket 5A of this embodiment is thus configured such that the first water supply pipe connection portion 41 is extended in the axial direction of the short tubular portion 101.

The socket body 70A of this embodiment is configured so that the body 71A opens in the axial direction (lower side in FIG. 4) at the second end 70Ab where the short cylinder portion 101 constituting the first water supply pipe connection portion 41 is provided. The faucet socket 5A of this embodiment is configured so that the open end 107 of the body 71A is used to form the second water supply pipe connection portion 42 that is connected to the water heater water supply pipe 46.

Specifically, the faucet socket 5A of this embodiment includes a cylindrical gland 108 that is screwed into a threaded portion 107x provided on the inner circumference of the opening end 107 that constitutes the second water supply pipe connection portion 42, and a connecting nut 109 that fits onto the outer circumference of the gland 108. Furthermore, the faucet socket 5A includes a substantially L-shaped tubular connecting member 110 that is connected to the opening end 107 based on the fastening force of the connecting nut 75. Thus, the faucet socket 5A of this embodiment is configured such that the second water supply pipe connection portion 42 is extended.

The socket body 70A of this embodiment also has a short cylinder portion 111 at the second end 70Ab where the first and second water supply pipe connections 41, 42 are provided, which protrudes in a direction opposite to the short cylinder portion 101 constituting the first water supply pipe connection 41. In the socket body 70A of this embodiment, this short cylinder portion 111 is provided in a state where it opens into the cylinder of the body portion 71A. The faucet socket 5A of this embodiment is configured so that the switching valve unit 120 constituting the switching valve 30A is attached to this short cylinder portion 111.

In more detail, the switching valve unit 120 of this embodiment includes a substantially cylindrical housing 121 that is screwed into a threaded portion 111x provided on the inner circumference of the short cylinder portion 111, and an axial valve rod 122 that is inserted into the cylinder of the housing 121 while being screwed into the threaded portion 121x provided on the inner circumference of the housing 121.

The switching valve unit 120 of this embodiment is attached to the short cylinder portion 111 with the tip portion 121a of the housing 121 opening to the inside of the socket body 70A that constitutes the flow path 25A of the faucet socket 5A, more specifically, to the inside of the cylinder of the body portion 71A. The switching valve unit 120 of this embodiment is configured so that the base end portion 121b side (right side in FIG. 4) of the housing 121 is sealed watertight. Furthermore, the housing 121 of this embodiment is provided with a hole portion that penetrates the peripheral wall in the radial direction. The faucet socket 5A of this embodiment is configured so that the hot water supplied through the second water supply pipe connection portion 42 flows through the housing 121 of the switching valve unit 120 and into the cylinder of the body portion 71A that constitutes the flow path 25A of the socket body 70A.

The switching valve unit 120 of this embodiment also includes a packing 123 provided on the tip 122a of the valve stem 122 that protrudes into the inside of the socket body 70A through the tip 121a of the housing 121. Furthermore, in the faucet socket 5A of this embodiment, this packing 123 is arranged in a position opposite the communication hole 102 that connects the inside of the body 71A to the inside of the short cylindrical portion 101. The switching valve unit 120 of this embodiment also includes an operating handle 48A fixed to the base end 122b of the valve stem 122 that is arranged outside the socket body 70A.

That is, the switching valve unit 120 of this embodiment can rotate the valve rod 122 from outside the socket body 70A by operating the operating handle 48A. Furthermore, based on the rotation of the valve rod 122, the packing 123 provided on the tip 122a of the valve rod 122 moves in the axial direction of the housing 121, in a direction approaching or separating from the tip 121a that opens to the inside of the socket body 70A. The switching valve unit 120 of this embodiment is configured so that the packing 123 provided on the valve rod 122 closes either the tip 121a of the housing 121 that communicates with the second water supply pipe connection portion 42 or the communication hole 102 that communicates with the first water supply pipe connection portion 41.

That is, in the hot water side faucet socket 5A, the tip 121a of the housing 121 communicating with the second water supply pipe connection part 42 is blocked, so that the hot water flowing through the water supply pipe 44 for the hot water heater connected to the first water supply pipe connection part 41 is supplied to the faucet body 4 connected to the faucet connection part 10A. Also, by blocking the communication hole 102 communicating with the first water supply pipe connection part 41, the hot water flowing through the water supply pipe 46 for the hot water heater connected to the second water supply pipe connection part 42 is supplied to the faucet body 4 connected to the faucet connection part 10A. The faucet socket 5A of this embodiment is configured to be able to switch the supply path of the hot water flowing into the flow path 25A through the first and second water supply pipe connections 41, 42 based on the operation of the switching valve 30A formed by the switching valve unit 120.

As shown in Figures 1, 3, 5, and 7, the water-side faucet socket 5B has a first end 70Ba at one end in the axial direction of the socket body 70B where the faucet connection 10B and the stopcock 60B are integrated, and a second end 70Bb opposite the first end 70Ba has a water supply pipe connection 51 and a water supply pipe connection 52.

In detail, the socket body 70B of this embodiment has a first short cylinder portion 131 that protrudes from the outer periphery of the body portion 71B in the radial direction (right side in FIG. 5) at its second end portion 70Bb. The socket body 70B also has a second short cylinder portion 132 that protrudes from the outer periphery of the body portion 71B in the radial direction in a direction approximately perpendicular to the first short cylinder portion 131 at the second end portion 70Bb. That is, these first and second short cylinder portions 131, 132 are provided in a manner that opens in a direction that intersects with the axis Lb of the socket body 70B. The first short cylinder portion 131 is also provided to protrude in a direction opposite to the short cylinder portion 72 that constitutes the faucet connection portion 10B provided at its first end portion 70Ba. Furthermore, in the socket body 70B of this embodiment, the first and second short cylinder portions 131, 132 are provided in a state in which they open into the cylinder of the body portion 71B. The faucet socket 5B of this embodiment is configured so that the first short cylinder portion 131 forms the water supply pipe connection portion 51, and the second short cylinder portion 132 forms the water supply pipe connection portion 52.

Specifically, the faucet socket 5B of this embodiment includes a backflow prevention unit 133 attached to the first short cylinder portion 131, and straight tube-shaped connection members 134, 135 coaxially connected to the first short cylinder portion 131. Furthermore, in the faucet socket 5B of this embodiment, these connection members 134, 135 are also connected to the first short cylinder portion 131 using a nut member 136. These connection members 134, 135 and nut member 136 are also unitized in the same way as the connection members 104, 105 and nut member 106 in the hot water side faucet socket 5A. Thus, the faucet socket 5B of this embodiment is configured such that the water supply pipe connection portion 51 is extended in the axial direction of the first short cylinder portion 131.

The socket body 70B of this embodiment also has a third short cylinder portion 143 at the second end 70Bb that protrudes in a direction opposite to the first short cylinder portion 131. In the socket body 70B of this embodiment, this third short cylinder portion 143 is also provided in a state in which it opens into the barrel of the body portion 71B. The faucet socket 5B of this embodiment is configured so that the switching valve unit 150 that constitutes the switching valve 30B is attached to this third short cylinder portion 143.

In more detail, the switching valve unit 150 of this embodiment includes a substantially cylindrical housing 151 that is screwed into a threaded portion 143x provided on the inner circumference of the third short cylinder portion 143, and an axial valve rod 152 that is inserted into the cylinder of this housing 151 while being screwed into a threaded portion 151x provided on the inner circumference of this housing 151.

The switching valve unit 150 of this embodiment is attached to the third short cylinder portion 143 with the tip portion 151a of the housing 151 opening inside the socket body 70B that constitutes the flow path 25B of the faucet socket 5B, more specifically, inside the cylinder of the body portion 71B. The switching valve unit 150 of this embodiment is configured so that the base end portion 151b side (left side in FIG. 5) of the housing 151 is sealed watertight. In addition, this switching valve unit 150 is provided with a packing 153 provided on the tip portion 152a of the valve rod 152 that protrudes inside the socket body 70B through the tip portion 151a of the housing 151. And the switching valve unit 150 of this embodiment is provided with an operating handle 48B fixed to the base end portion 152b of the valve rod 152 that is arranged outside the socket body 70B.

The socket body 70B of this embodiment is provided with a partition wall 155 that watertightly separates the third short cylinder portion 143 in which the switching valve unit 150 is provided, the second short cylinder portion 132 that constitutes the water supply pipe connection portion 52, and the first short cylinder portion 131 that constitutes the water supply pipe connection portion 51 within the cylinder of the body portion 71B. The partition wall 155 is provided with a communication hole 157 that faces the packing 153 provided at the tip portion 152a of the valve rod 152 in the axial direction (left and right direction in FIG. 5) of the valve rod 152 that constitutes the switching valve unit 150 attached to the third short cylinder portion 143.

That is, the switching valve unit 150 provided in the water faucet socket 5B can also rotate the valve rod 152 from outside the socket body 70B by operating the operating handle 48B. Furthermore, based on the rotation of the valve rod 152, the packing 153 provided at the tip 152a of the valve rod 152 moves in a direction toward and away from the partition wall 155 located in the axial direction of the valve rod 152. The switching valve unit 150 of this embodiment is thus configured such that the packing 153 provided on the valve rod 152 opens and closes the communication hole 157 provided in the partition wall 155.

That is, in the water-side faucet socket 5B, the communication hole 157 provided in the partition 155 is closed, so that the running water flowing into the flow path 25B through the water supply pipe connection part 51 is supplied only to the faucet body 4 connected to the faucet connection part 10B. Also, by opening the communication hole 157 of the partition 155, the running water flowing into the flow path 25B through the water supply pipe connection part 51 is supplied to the faucet body 4 connected to the faucet connection part 10B and the water supply pipe 53 for the water heater connected to the second short cylinder part 132 constituting the water supply pipe connection part 52. The faucet socket 5B of this embodiment is thus configured to be able to switch the supply path of the running water through the water supply pipe connection part 51 and the water supply pipe connection part 52 based on the operation of the switching valve 30B formed by the switching valve unit 150.

In addition, the socket body 70B of this embodiment has a drain hole 160 at its second end 70Bb that opens in the axial direction of the socket body 70B (downward in FIG. 5). By operating a drain plug 161 screwed into this drain hole 160, water in the flow path 25B can be drained.

Next, the operation of this embodiment will be described.
In the faucet 1 of this embodiment, by operating the operating handle 48A of the switching valve 30A provided in the hot water side faucet socket 5A, the faucet body 4 connected to the hot water side faucet socket 5A is switched between a state in which hot water is supplied from a water supply pipe 44 extending to a hot water heater 43 with a heat source and a state in which hot water is supplied from a water supply pipe 46 extending to a solar water heater 45. By operating the operating handle 48B of the switching valve 30B provided in the water side faucet socket 5B, the running water that has flowed from the water side water supply pipe 50 into the flow path 25B of the faucet socket 5B is switched between a state in which it is supplied to the water supply pipe 53 for the faucet body 4 and the solar water heater 45 connected to the water side faucet socket 5B, and a state in which it is supplied only to the faucet body 4.

In addition, in the faucet 1 of this embodiment, by operating the stop valve 60A provided on the hot water side faucet socket 5A, the path that supplies hot water from the water supply pipe 44 for the hot water heater to the faucet body 4 and the path that supplies hot water from the water supply pipe 46 for the hot water heater to the faucet body 4 are stopped at the same time. Then, by operating the stop valve 60B provided on the water side faucet socket 5B, the path that supplies running water from the water supply pipe 50 on the water side to the faucet body 4 connected to the water side faucet socket 5B and the path of water that flows back from the water supply pipe 53 for the hot water heater toward the faucet body 4 are stopped at the same time.

Next, the effects of this embodiment will be described.
(1) The faucet socket 5 comprises a faucet connection portion 10 connected to the faucet body 4, a plurality of pipe connection portions 20 connected to pipes 15, a flow path 25 connecting each of these pipe connection portions 20 to the faucet connection portion 10, and a stopcock 60 provided midway along the flow path 25 to block communication between each pipe connection portion 20 and the faucet connection portion 10.

The above configuration makes it possible to stop all of the flow paths from the faucet connection 10 to the faucet socket 5, after the flow of water that has flowed into the flow path 25 via each piping connection 20. This makes it easy to replace and perform maintenance on the faucet body connected to the faucet connection 10.

(2) The faucet socket 5 has a tubular socket body 70 that constitutes the flow path 25. The faucet connection part 10 and the stop valve 60 are arranged together at one end of the socket body 70 in the axial direction.

According to the above configuration, the stop valve 60 can be placed just before the faucet connection part 10 in the flow path 25. This can reduce the amount of residual water between the stop valve 60 and the faucet connection part 10. As a result, replacement and maintenance work of the faucet body can be performed more easily. In addition, by placing the stop valve 60 near the faucet connection part 10, there is an advantage that the appropriate water stop work can be performed intuitively without prior knowledge.

(3) The faucet socket 5 comprises a faucet connection portion 10 that opens in a direction intersecting the axis L of the socket body 70, and a stopcock 60 that extends in the axial direction of the socket body 70.
According to the above-mentioned configuration, the faucet connection portion 10 and the stop valve 60 can be arranged compactly, and the faucet socket 5 can be made compact.

(4) A switching valve 30 is provided in the flow path 25, which is configured to be able to switch the supply path of the running water via each piping connection part 20. This improves the convenience for the user.

(5) The faucet 1 has a faucet body 4 equipped with a hot water supply port 2A, each cold water supply port 2B, and a discharge port 3 communicating with each of the hot water and cold water supply ports 2, and is configured as a hot and cold water mixing faucet equipped with a hot water faucet socket 5A connected to the hot water supply port 2A, and a cold water faucet socket 5B connected to the cold water supply port 2B.

In other words, when replacing or maintaining the faucet body of a hot and cold water mixing faucet, it is necessary to shut off the hot and cold water supply paths. Therefore, by applying this to such a hot and cold water mixing faucet, more significant effects can be obtained.

(6) The hot water side faucet socket 5A has, as its piping connection 20, first and second water supply pipe connections 41, 42 connected to the hot water side water supply pipe 40 for supplying water to the flow path 25A of the faucet socket 5A. The first water supply pipe connection 41 is connected to a water heater water supply pipe 44 extending from a water heater 43 with a heat source. The second water supply pipe connection 42 is connected to a water heater water supply pipe 46 extending from a solar water heater 45. The hot water side faucet socket 5A is provided with a switching valve 30A configured to be able to switch the supply path of the running water flowing into the flow path 25A via these first and second water supply pipe connections 41, 42.

The above configuration makes it easy to switch between a state in which hot water flowing through the water supply pipe 44 for the water heater is supplied to the faucet body 4 and a state in which hot water flowing through the water supply pipe 46 for the water heater is supplied to the faucet body 4. This improves the convenience for users.

(7) The water-side faucet socket 5B has a water supply pipe connection part 51 connected to the water-side water supply pipe 50 for supplying water to the flow path 25B. The water-side faucet socket 5B also has a water supply pipe connection part 52 for sending the flowing water that has flowed into the flow path 25B through this water supply pipe connection part 51 out of the flow path 25B. Furthermore, this water supply pipe connection part 52 is connected to a water heater water supply pipe 53 for sending water to the solar hot water heater 45. The faucet socket 5B is provided with a switching valve 30B configured to be able to switch between a first water supply state in which the flowing water that has flowed into the flow path 25B through the water supply pipe connection part 51 is supplied to the faucet main body 4 connected to the faucet connection part 10B, and a second water supply state in which the flowing water is supplied to the water heater water supply pipe 53 connected to the faucet main body 4 and the water supply pipe connection part 52.

The above configuration makes it easy to switch between a state in which the water flowing through the water supply pipe 50 is supplied to the faucet body 4 and a state in which it is supplied to the faucet body 4 and the water supply pipe 53. This improves convenience for users. In addition, there is an advantage in that by operating the stop valve 60B, the water flowing back from the water supply pipe 53 can also be stopped from flowing toward the faucet body 4.

The above embodiment can be modified as follows. The above embodiment and the following modified examples can be combined with each other to the extent that there is no technical contradiction.

- In the above embodiment, the faucet socket 5 includes a faucet connection portion 10 that opens in a direction intersecting the axis L of the socket body 70, and a stopcock 60 that extends in the axial direction of the socket body 70. The faucet connection portion 10 and the stopcock 60 are arranged together at one end of the socket body 70 in the axial direction.

However, the arrangement of the faucet connection 10 is not limited to this, and may be changed as desired. For example, the stopcock 60 may be provided at a midpoint in the axial direction of the socket body 70, or the stopcock 60 may be arranged so as to extend in a direction intersecting the axis L of the socket body 70. The arrangement of the faucet connection 10, each pipe connection 20, and the switching valve 30 may also be changed as desired.

- In the above embodiment, the body 71 of the socket body 70 has a cylindrical outer shape that extends in a substantially straight line, but the tubular shape does not necessarily have to be circular in cross section and may be curved. Furthermore, the socket body 70 does not necessarily have to be a one-piece molded product and may be formed by combining multiple divided members.

-Furthermore, the faucet socket 5 does not necessarily have to have a so-called crank-shaped outer shape with a pipe connection part 20 that opens in the opposite direction to the opening direction of the faucet connection part 10. Furthermore, it may be used for purposes other than a hot and cold water mixing faucet.

- The number of pipe connections 20 provided on the faucet socket 5 may be three or more. Furthermore, the pipe connections 20 may include a plurality of water supply pipe connections 52. Furthermore, the configuration may include a plurality of water supply pipe connections 51 and a plurality of water supply pipe connections 52.

- The switching pattern of the supply path by the switching valve 30 may be changed as desired. For example, the configuration may be such that by operating the switching valve 30B provided in the water faucet socket 5B on the water side, the flow path 25B is switched between a state in which the flow path 25B is supplied to the faucet body 4 and a state in which the flow path 25B is supplied to the water supply pipe connection portion 52. Also, for example, it may be possible to select a state in which flow water is supplied to the flow path 25 simultaneously from multiple pipe connections 20. Furthermore, the switching valve 30 and the stop valve 60 may be integrated. It may also be applied to a configuration that does not have a switching valve 30.

- In the above embodiment, the hot water faucet socket 5A is connected to the water heater water supply pipe 44 extending from the water heater 43 with a heat source and the water heater water supply pipe 46 extending from the solar water heater 45. However, this is not limited to this, and the invention may be applied to a configuration in which hot water is supplied from multiple water heaters with heat sources. It may also be applied to a configuration in which hot spring water is supplied via any of the pipe connections 20. And, it may be applied to a configuration in which water is supplied to a device other than the solar water heater 45, such as a dishwasher, via the water supply pipe 53 connected to the water supply pipe connection 52.

4... Faucet body, 5... Faucet socket, 10... Faucet connection part, 15... Pipe, 20... Pipe connection part, 25... Flow path, 60... Stop valve.

Claims (6)

A faucet connection part connected to the faucet body;
A plurality of pipe connections connected to pipes;
A flow path that communicates each of the pipe connections and the faucet connection;
A stop valve is provided in the flow path to block communication between each of the pipe connections and the faucet connection ,
A tubular socket body that configures the flow path is provided,
A faucet socket in which the faucet connection portion and the stopcock are concentrated at one end of the socket body in the axial direction . A faucet connection part connected to the faucet body;
A plurality of pipe connections connected to pipes;
A flow path that communicates each of the pipe connections and the faucet connection;
A stop valve is provided in the flow path to block communication between each of the pipe connections and the faucet connection ,
A switching valve configured to be able to switch a supply path of the running water via each of the piping connections is provided in the flow path,
As the piping connection part,
a water supply pipe connection portion connected to a water supply pipe for supplying water to the flow path;
a water supply pipe connection portion for supplying the flowing water that has flowed into the flow path via the water supply pipe connection portion to the outside of the flow path,
The switching valve is
a first water supply state in which the flowing water that has flowed into the flow path through the water supply pipe connection portion is supplied to the faucet body connected to the faucet connection portion;
A faucet socket configured to be switchable between a first water supply state, in which the running water flowing into the flow path via the water supply piping connection portion is supplied to the faucet body connected to the faucet connection portion and to the water supply piping connected to the water supply piping connection portion, and a second water supply state, in which the running water flowing into the flow path via the water supply piping connection portion is supplied to the faucet body connected to the faucet connection portion and to the water supply piping connected to the water supply piping connection portion. The water faucet connection portion opens in a direction intersecting with the axis of the socket body;
The faucet socket according to claim 1 , further comprising: a stopcock extending in an axial direction of the socket body. 4. The faucet socket according to claim 1 or 3 , further comprising a switching valve arranged in the flow path to switch a supply path of the running water via each of the pipe connections. The piping connection portion includes a plurality of water supply piping connection portions connected to a water supply piping for supplying water to the flow path,
The faucet socket according to claim 4 , wherein the switching valve is configured to be capable of switching a supply path of the running water flowing into the flow passage via each of the water supply pipe connections. A faucet comprising the faucet socket according to any one of claims 1 to 5 .