JPH0577357U - Water spout for automatic faucets - Google Patents

Abstract

(57) [Abstract] [Object] The present invention relates to a water spout for an automatic faucet, which is capable of spouting / stopping water based on a sensor output from a hand detection sensor or the like. According to the present invention, a spout cover 20 detachably attached to a spout mounting hole B2 formed in a faucet mounting wall B1 of an automatic faucet A from the front side of the faucet mounting wall B1 and the spout cover. Cover 20
Provided is a spout fitting for an automatic faucet, which includes a hand-sensing sensor 3 housed integrally inside and a spout nozzle 24 that is connected to a faucet mounting wall B1 and is covered with the spout cover 20. It is something to do.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a spout fitting for an automatic faucet in a hand washing device or the like, which is capable of spouting / stopping water based on sensor output from a hand detection sensor or the like.

[0002]

[Prior Art]

 Conventionally, there has been a wall-embedded handwasher as one form of handwasher. The handwasher has a structure in which a vertical wall is raised from the back of the ball section and a water discharge fitting is provided on the top of the wall to facilitate hand washing. ing.

Further, a hand detection sensor is attached in parallel to a water discharge fitting of such a wall-embedded hand basin, and an automatic water which can automatically discharge water when a hand is extended based on the output from the hand detection sensor. There is a stopper.

Further, the water discharge fitting and the hand detection sensor are integrally covered by a water outlet cover to maintain the aesthetic appearance of the wall-embedded handwasher and to intrude into the hand detection sensor such as splashed water. This prevents the inoperability of the wall surface and prevents the corrosion of the wall surface due to the intrusion of splashed water to the back side of the wall.

[0005]

[Problems to be solved by the device]

 However, the water spout for the automatic faucet used in the above-mentioned wall-mounted hand-washing machine still had the following problems to be solved.

That is, in the above-mentioned water discharge fitting, since the spout cover is normally integrally fixed to the top of the vertical wall of the wall-embedded handwasher, the hand-sensing sensor mounted inside the water discharge fitting. Etc. are attached to the vertical wall and wiring to the sensor is performed from the back side of the wall. Therefore, when repairing a sensor due to a sensor failure or the like, the hand washing device itself had to be removed, and then the hand detection sensor attached from the back of the wall had to be removed for repair or replacement. Therefore, it is a large-scale work and requires a lot of trouble.

An object of the present invention is to provide a water spouting fitting for an automatic faucet in a wall-embedded hand basin that can solve the above-mentioned problems.

[0008]

[Means for Solving the Problems]

 The present invention is a water spout mounting hole that is provided on the faucet mounting wall of an automatic faucet and is detachably mounted from the front side of the faucet mounting wall, and is integrally housed in the spout cover. It is another object of the present invention to provide a spout fitting for an automatic faucet, which includes a hand detection sensor and a spout nozzle that is connected to a faucet mounting wall and is covered by the spout cover.

Further, according to the present invention, a positioning plate having at least a part of a fitting portion in a deformed shape is non-rotatably fitted in a water discharge fitting mounting hole in which at least a part is formed in the same deformed shape, Further, the spout cover is detachably connected to the positioning plate, and a connector holder is arranged on the back side of the faucet mounting wall. A holding part that holds the cord connector for connecting the sensor cord and the sensor cord and prevents the cord from falling off, and the other end is fitted around the connecting metal part that projects to the back side of the faucet mounting wall to prevent water leakage. The water portion is integrally formed, and the connector holder is made of a rubber material.

[0010]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings.

FIG. 1 is a front view of a wall-embedded hand-washing device B equipped with a water discharge fitting 1 for an automatic water faucet A according to the present invention, and FIGS. 2 and 3 are water discharge metal fittings 1 for an automatic water faucet A, respectively. FIG. 3 is a cross-sectional side view showing a hot and cold water supply unit 6 that supplies hot and cold water to the water discharge fitting.

As shown in FIG. 1, the handwasher B is embedded and fixed at a position of the wall W at an appropriate height.

The overall structure of the automatic faucet A provided in the hand-washing device B will be described below with reference to FIGS. 1 to 3.

The hand-washing device B is made of pottery, and is above the bowl part B3 of the hand-washing device B, and on the faucet mounting wall B1 formed integrally with the bowl part B3, the present invention is provided. The spout metal fitting 1 of the automatic faucet A, which is the main point, is attached.

A control box 7 is disposed below the hand-washing device B, and a control device 10a and a power supply device 10b connected to an external power source are provided in the control box 7. A hot and cold water supply section 6 which is connected to the spout metal fitting 1 through a hot and cold water supply pipe 5 is accommodated therein.

As shown in FIG. 3, the hot and cold water supply unit 6 includes an electromagnetic opening / closing valve 8 that communicates with the upstream side of the hot water supply pipe 5, and a thermostat type mixing valve 9 that communicates with the electromagnetic opening / closing valve 8. Are integrally configured.

Further, the thermostatic mixing valve 9 is connected to the hot water supply side pipe 11 and the other end side opening of the water supply side pipe 12 which have a built-in water shutoff plug at the base.

The hot water supply unit 6 is connected to a control device 10a that controls the operation of the electromagnetic opening / closing valve 8 and sensors.

With such a configuration, when the electromagnetic opening / closing valve 8 is driven and opened, the hot water supply side pipe 11 and the water supply side pipe 12 pass through the thermostat type mixing valve 9, the electromagnetic opening / closing valve 8 and the hot water supply pipe 5 to mix at an appropriate temperature. Hot water can be discharged from the water discharge fitting 1 into the handwasher B.

The power supply device 10b may be a dry battery or the like, and an electric water heater may be used instead of the thermostat type mixing valve 9 of the hot water supply unit 6.

Further, in FIG. 3, 13 is a hot water supply pipe, 14 is a water supply pipe, 15 is a hot water supply flow passage, 16 is a flow passage 15 provided between the thermostat type mixing valve 9 and the electromagnetic opening / closing valve 8. The water shutoff valves 8a, 8b, and 8c are the valve body, valve seat, and plunger of the electromagnetic opening / closing valve 8, respectively.

Next, the structure of the water discharge fitting 1 which is the subject matter of the present invention will be described with reference to FIGS. 2 and 4.

The overall structure of the water discharge fitting 1 is composed of a connection fitting J, a water discharge nozzle 24, a water discharge cover 20 for accommodating the hand detection sensor 3, a positioning plate 2, and a connector holder 4. , Is installed at the top of the vertical wall that rises from the back of the bowl B3 of the handwasher B.

That is, as shown in FIGS. 2 and 4, one end of the substantially L-shaped connecting fitting J is connected to the hot and cold water supply pipe 5 that is connected to the hot and cold water supply unit 6 disposed on the back side of the wall W. , And is inserted into a front-rear circular spout fitting hole B2 formed in the faucet mounting wall B1 of the handwasher B, and the spout nozzle 24 is screwed to the other end of the connecting fitting J. ing.

Further, the hand detecting sensor 3 is arranged in parallel with the connecting fitting J and the spout nozzle 24, and these are covered integrally with the spout cover 20.

On the faucet mounting wall B1 side of the spout cover 20, a positioning plate 2 is non-rotatably fitted to the spout metal mounting wall B2, and the positioning plate 2 has a spout cover. 20 is attached detachably.

When the spout cover 20 is mounted, the positioning plate 2 defines a mounting position and functions as a rotation stopper, and has a longitudinal width equal to the width of the spout fitting mounting hole B2. The fitting portion 2d having the side surfaces 2e, 2f is projected on the half-moon-shaped chord side, and the fitting portion 2d is fitted into the water discharge fitting mounting hole B2 so that the flow path side and the water discharge side of the connection fitting J are connected. It is sandwiched by the joints 23 and 22.

Further, the spout cover 20 which is detachably attached to the positioning plate 2 is formed in a cap shape having a two-way opening consisting of a front end surface 20a and side walls 20b and 20c, and one of the internal spaces thereof. The water outlet 21 including the water outlet nozzle 24 is housed on the side, and the sensor housing space 26 is formed on the other side to accommodate and store the hand detection sensor 3.

The tip surface 20a is provided with a sensor through hole 20d for the hand detection sensor 3 and is formed so that the direction of water discharge and the optical axis of the sensor are substantially parallel to each other.

A connector holder 4 is provided on the back side of the faucet mounting wall B1 so as to be in close contact with the faucet mounting wall B1. The connector holder 4 includes the hand detection sensor 3 and the sensor cord. It has the function of holding the cord connector 32 that connects 31 and the function of sealing the water discharge fitting mounting hole B2 of the faucet mounting wall B1 that inserts the connection fitting J, and is formed into a box shape with two openings. It is made of a rubber-like material in which the held portion 4a and the thin plate-shaped water sealing portion 4b having the joint fitting hole 4c are integrally connected.

As described above, the water discharge fitting 1 includes the water discharge port cover 20 detachably attached to the positioning plate 2 from the front side of the water faucet mounting wall B1, and the hand detection sensor integrally housed in the water discharge port cover 20. 3, the spout nozzle 24 covered by the spout cover 20, and the connection fitting J that connects to the nozzle 24 and the hot water supply pipe 5 on the back side of the faucet mounting wall B1 and the connector holder 4 Each of the components is described in more detail below.

As shown in FIG. 2, the connecting fitting J is composed of a flow path side joint 23 and a discharge side joint 22 connected to the flow path side joint 23, and the flow path side joint 23 has a part of the handwasher B. Is connected to the hot and cold water supply pipe 5 by protruding to the back side of the faucet mounting wall B1 of the water faucet mounting wall B1, and the discharge side joint 22 is connected to the water outlet nozzle 24 at its tip.

As shown in FIG. 2, the spout nozzle 24 is connected to the tip of the discharge side joint 22, and a net body 25 for foaming the hot water to be discharged is provided inside the spout nozzle 24. The hot and cold water flowing from the pipe 5 passes through the flow path side joint 23, the discharge side joint 22, and the spout nozzle 24 of the connection fitting J, and is discharged as a foam by the net 25 of the spout nozzle 24. Will be

As shown in FIG. 2, the hand detection sensor 3 is mounted in a sensor storage space 26 formed inside the spout cover 20 in parallel with the above-mentioned connecting fitting J and spout nozzle 24. Therefore, the optical axis of the sensor 3 is substantially parallel to the water discharge direction.

Although there are various types of hand detecting sensors 3, the sensor 3 described below is used in this embodiment.

That is, as shown in FIG. 7, the sensor block 3a, the sensor substrate 3b, and the transparent plate 3c are formed by a resin molding agent 3d into a rectangular tubular sensor case 3e and a case cover 3f. The bracket 3k formed on the sensor case 3e is integrally molded in the box body, and is screwed to a water outlet cover 20 described later in detail with a fixing bolt 3m.

Further, in the above configuration, sensor element mounting holes 3g and 3h are provided in the sensor block 3a at intervals, and the base ends are respectively placed in the mounting holes 3g and 3h. A light projecting element 3i made of a phototransistor and a light receiving element 3j made of a photodiode are connected to the substrate 3b.

Then, when the light receiving element 3j receives the infrared light emitted from the light projecting element 3i and reflected by the hand, the hand detecting sensor 3 generates a detection output and sends an output signal to the control device 10a. Hot water can be automatically spouted from the spout nozzle 24 by driving the open / close valve 8.

Moreover, since the optical axis of the hand detection sensor 3 is substantially parallel to the water discharge direction, there is no malfunction such as detection of water discharge and reliable operation is possible.

Further, one end of a plurality of lead lines 33 is connected to the upper surface of the sensor substrate 3b of the hand detection sensor 3, and the other end of the lead lines 33 is connected to the controller side connector 32a and the sensor side connector. It is connected to the sensor cord 31 via a cord connector 32 which is divided into two parts, namely, a connector 32b and a control box 7 arranged on the back side of the wall W.

As shown in FIGS. 2 and 4, the cord connector 32 has one control device side connector 32a disposed and held in a connector storage space 41 formed in a connector holder 4 described later. The other sensor-side connector 32b is arranged so as to face the space of the water discharge fitting mounting hole B2 of the automatic faucet A of the hand washing device B.

As shown in FIGS. 2 and 4, the water spout cover 20 for covering the part of the connection fitting part J, the spout nozzle 24, and the hand detection sensor 3 described above is used to remove the faucet of the hand wash device B. It is detachably attached to the attached wall B1.

That is, as shown in FIG. 4, the spout cover 20 is formed in a cap shape having a two-way opening, which is composed of a front end surface 20a and side walls 20b and 20c, and is formed inside the side walls 20b and 20c. Bosses 20d and 20e are provided respectively, and they are screwed to the positioning plate 2 by fixing screws 27 and 28.

Therefore, the spout cover 20 can be easily removed by loosening and removing the fixing screws 27, 28.

In addition, the spout 21 including the spout nozzle 24 is stored on one side of the internal space, and the sensor storage space 26 is formed on the other side to mount and store the hand detecting sensor 3 and the tip surface. An elongated sensor through hole 20d for the hand detection sensor 3 is bored in 20a and is formed so that the direction of water discharge and the optical axis of the sensor are substantially parallel to each other.

Further, as shown in FIGS. 4 and 5, the positioning plate 2 is formed of a substantially half-moon shaped flat plate, and has a contact area large enough to allow the discharge side joint 22 of the joint metal fitting portion J to be inserted therethrough. Screw holes 2b and 2c are formed at positions corresponding to the hand insertion hole 2a and the boss portions 20d and 20e of the water spout cover 20.

The spout cover 20 is screwed to the positioning plate 2 with fixing screws 27 and 28. Further, the joint metal fitting J is arranged from the hot and cold water supply pipe 5 side to the spout 1 side via the positioning plate 2. Will be done.

Further, on the half-moon shaped positioning plate 2, a fitting portion 2d having side surfaces 2e, 2f having a longitudinal width equal to the width of the water discharge fitting mounting hole B2 is projected to the half moon-shaped chord side. Moreover, the inside of the fitting portion 2d is formed in an arc shape along the joint insertion hole 2a.

By the way, as shown in FIG. 4, the faucet mounting wall B1 of the handwasher B for mounting the automatic faucet A has flat side walls B3 and B4, a front wall B5, and a curved rear wall B6. A front and rear circular water discharge fitting mounting hole B2 is formed, and the fitting portion 2d is formed so as to fit in the water discharge fitting mounting hole B2.

Therefore, by fitting the side surfaces 2e, 2f of the fitting portion 2d between the both side walls B3, B4 of the water discharge fitting mounting hole B2, a rotation preventing function is achieved, and the positioning plate 2 is connected to the flow path side joint 23. When fixing to the mounting wall B1 with the water spout side joint 22, there is no positional displacement and the like, and it can be securely mounted.

Finally, as shown in FIGS. 4 and 6, the connector holder 4 holds a cord connector 32 for connecting the lead wire 33 of the sensor 3 and the sensor cord 31 on one end side to prevent the cord holder 32 from falling off. A holding part 4a for performing the function and a connecting fitting part 4a that is connected to the holding part 4a and has a joint fitting hole 4c on the other end side and around the connecting metal fitting part J that projects to the back side of the faucet mounting wall B1. A thin plate-shaped water sealing portion 4b as a water sealing function that is fitted to prevent water leakage is integrally formed of a rubber material.

The holding portion 4 a has a connector housing space 41 formed therein, and has a lower surface orthogonal to the optical axis direction of the hand detection sensor 3 and a side surface of the lower surface that rises from the joint fitting J side. The openings 42 and 43 are formed, and the openings 42 and 43 communicate with each other to form the connector storage space 41.

In the connector storage space 41, the controller side connector 32a of the cord connector 32 which is divided into two is disposed and held. Therefore, for maintenance of the hand detection sensor 3 or the like, the spout cover 20 is removed, When the cord connector 32 is divided, it is possible to prevent the control device side connector 32a from dropping to the back side of the wall.

Further, the water sealing portion 4b is formed with a joint fitting hole 4c that fits into the joint 23 of the joint fitting portion J on the passage side, and the joint 23 on the passage side is fitted into the fitting hole 4c. As a result, in the tightly tightened state, the water sealing portion 4b acts like a sealing material and can prevent water from entering through the water discharge fitting mounting hole B2 formed in the mounting wall B1 of the handwasher B.

Here, the work of actually mounting the water discharge fitting 1 having the above-described configuration on the wall-embedded hand wash device B will be described with reference to FIGS. 1 to 4.

First, in consideration of the mounting position of the hand-washer B, a pipe hole for passing the hot and cold water supply pipe 5 and the sensor cord 31 is formed in the wall W for mounting the embedded hand-washer B. A fixing hole for the hand washing device B is provided, and necessary devices such as the hot and cold water supply unit 6 and the control box 7 are provided behind the wall.

Next, the end of the sensor cord 31 extending from one end of the control device side connector 32a is hung from the piping hole to the back of the wall, and the control device side connector 32a is held by the connector holder 4, and the faucet of the handwasher B is stopped. From the rear side of the mounting wall B1, insert the flow path side joint 23 through the connector holder 4 into the water discharge fitting mounting hole B2, and from the front side, fit the fitting portion 2d of the positioning plate 2 into the water discharge fitting mounting hole B2. Similarly, the water discharge side joint 22 is positioned from the front side, and is passed through the joint insertion hole 2a of the plate 2 to be connected to the tip of the flow path side joint 23.

Since each joint 22, 23 is formed with a male and female screw portion, the positioning plate 2 is on the front side of the faucet mounting wall B1, and the faucet mounting wall B1 and each joint 22, 23 It is tightened and fixed. At this time, the fitting portion 2d of the positioning plate 2 is fitted into the water discharge fitting mounting hole B2 and serves as a detent, so that it can be securely fixed.

Next, the water outlet nozzle 24 is attached to the tip of the water outlet side joint 22, and the sensor side connector 32b connected to one end of the lead wire 33 from the hand detection sensor 3 mounted in the water outlet cover 20 in advance. Is connected to the controller-side connector 32a held by the connector holder 4.

Then, the spout cover 20 is attached to the positioning plate 2 with fixing screws 27 and 28.

After that, the handwasher B itself is attached and fixed to the wall W with bolts or the like, the flow path side joint 23 and the hot and cold water supply pipe 5 are connected on the back side of the wall W, and the sensor cord 31 is connected to the control box 7. Connect to and finish the work.

Next, in the case of the wall-mounted hand-washing device B mounted as described above, if the hand-sensing sensor 3 housed in the water discharge fitting 1 of the automatic faucet A of the hand-washing device B fails, The actual work for taking out the sensor 3 will be described with reference to FIGS. 2 and 4.

First, the fixing screws 27, 28 are loosened and removed from the water outlet cover 20, and the water outlet cover 20 is detached from the mounting wall B1 of the handwasher B.

However, since the hand detection sensor 3 is mounted inside the spout cover 20 and the lead wire 33 extending from the sensor 3 is connected to the cord connector 32, the spout cover 20 is still attached. It cannot be removed.

Therefore, the water outlet cover 20 can be completely removed from the mounting wall B1 by pulling out the sensor side connector 32b from the control device side connector 32a held by the connector holder 4.

At this time, since the control device side connector 32a is held by the connector holder 4, the spout cover 20 can be detached with ease and with ease, without falling behind the wall. ..

Next, the hand detecting sensor 3 can be easily taken out by loosening and removing the fixing bolt 3m screwed to the water outlet cover 20.

Of course, even when the taken out hand sensor 3 is repaired and then mounted on the spout cover 20, it can be easily mounted by the reverse procedure of the above description.

[0069]

[Effect of the device]

 As described above, according to the present invention, the spout cover which is detachably attached from the front side of the faucet mounting wall to the spout fitting hole formed in the faucet mounting wall of the automatic faucet, and the spout cover. A water-discharging metal fitting for an automatic faucet consisting of a hand-sensing sensor housed inside and a spout nozzle that is connected to the faucet mounting wall and covered with a spout cover is applied to a wall-embedded handwasher. This makes it extremely easy to attach and detach the spout cover, and it becomes extremely easy to take out the sensor that is easily damaged and is stored in the spout cover. Can be greatly saved.

Further, since the positioning plate having at least a part of the fitting portion having a deformed shape is fitted into the water discharge fitting mounting hole, at least a part of which has the same deformed shape, in a non-rotatable state, The spout cover can be easily positioned, and the spout fitting can be easily installed.When the positioning plate is fixed, the fitting part functions as a rotation stop, so the positioning plate cannot be fixed by the joint fitting part. It will be easier and the automatic faucet installation work can be facilitated.

Further, by disposing the connector holder having the holding portion and the water sealing portion on the back side of the faucet mounting wall of the water discharge fitting in the hand washing device, a connector for connecting the lead wire of the sensor and the sensor cord is provided. It can be retained, and it is possible to prevent the connector from falling off or falling to the back of the wall, and also to prevent water leakage to the back of the wall and prevent corrosion of the wall.

Further, since the connector holder is made of a rubber material, the water sealing property can be further enhanced.

[Brief description of drawings]

FIG. 1 is a front view of a wall-embedded hand washing device including a water spout for an automatic faucet according to the present invention.

FIG. 2 is a cross-sectional side view showing a water discharge fitting of an automatic faucet.

FIG. 3 is a sectional side view showing a hot and cold water supply part of the automatic faucet.

FIG. 4 is an explanatory view showing a mounting state of the water discharge fitting.

FIG. 5 is an explanatory view of a positioning plate.

FIG. 6 is a perspective view of a connector holder.

FIG. 7 is an explanatory view showing a mounting state of a hand detection sensor.

[Explanation of symbols]

 A Automatic faucet B1 Faucet mounting wall B2 Water spout mounting hole 2 Positioning plate 2a Joint insertion hole 3 Sensor 4 Connector holder 4a Holding part 4b Sealing part 20 Water spout cover 24 Water spout nozzle 31 Sensor code 32 Code connector 33 Lead wire

Claims (4)

[Scope of utility model registration request] 1. A faucet mounting hole (B2) formed in a faucet mounting wall (B1) of an automatic faucet (A) can be detachably mounted from the front side of the faucet mounting wall (B1). The spout cover (20), the hand detection sensor (3) housed inside the spout cover (20), and the faucet mounting wall (B1) are connected to each other and are connected to the spout cover (20).
A water spout fitting for an automatic faucet consisting of a spout nozzle (24) covered with. 2. A positioning plate (2) in which at least a part of the fitting portion has an irregular shape is fitted in a non-rotatable state into a water discharge fitting mounting hole (B2) in which at least a portion has the same irregular shape. The spout according to claim 1, wherein the spout cover (20) is detachably connected to the positioning plate (2). 3. A connector holder on the back side of the faucet mounting wall (B1)
The connector holder (4) holds the cord connector (32) for connecting the lead wire (33) of the hand detection sensor (3) and the sensor cord (31) at one end of the connector holder (4). A retaining part (4a) that prevents falling off and a water seal part that prevents water leakage by fitting around the connecting metal part (J) protruding to the back side of the faucet mounting wall (B1) on the other end side
The water spout for an automatic faucet according to claim 1 or 2, wherein (4b) is integrally formed. 4. The water spout for an automatic faucet according to claim 1, wherein the connector holder (4) is made of a rubber material.