JPH0637247Y2 - Automatic faucet system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is an improvement of an automatic faucet system that automatically supplies water or stops water by causing a sensor to detect an object such as a user's hand or an article. Regarding

(Prior art) Conventionally, a sensor is used to automatically supply fluid,
As an automatic water shut-off device, there is one shown in Fig. 1 (Fig. 7 of the present application drawing) of Japanese Utility Model Laid-Open No. 1-124868. To explain briefly with reference to FIG. 7 above, on the top plate 40 of the wash basin or the sink, the sensor 42 provided in the water discharge pipe 41 causes an object to be sensed to open the solenoid valve 43, and the fluid is discharged. A faucet 44 that closes the solenoid valve 43 when discharging and sensing is completed
And a temperature control valve 45 that controls the temperature of the fluid discharged from the water discharge pipe 41, and when the manual handle 46 provided on the faucet 44 is rotated to one side, a branch flow occurs when the solenoid valve 43 is opened. When the flow rate of the mixed water supplied from the line 47 to the water discharge port 49 through the first pipe 48 is adjusted and the manual handle 46 is turned to the other side when the electric system fails or is out of service, the mixed water in the branch flow channel 47 is electromagnetic. It is supplied directly from the second pipe 48a to the water outlet 49 without passing through the valve 43.

In the case of the above, since the faucet and the temperature control valve are installed at separate positions, the operability is poor and it takes time to obtain the desired mixed water. In addition, two holes are drilled in the top plate. A faucet and a temperature control valve had to be attached to each hole, which was extremely troublesome to construct and had a drawback that the space of the top plate was narrowed. Furthermore, if this automatic faucet does not start water supply even if the sensor detects an object, it is possible to quickly judge whether the cause is a malfunction of the sensor or the solenoid valve or the manual handle and the water stop position. I can't grab it
There were many inconveniences, such as having to keep the hand as an object exposed to water discharge when trying to store hot and cold water continuously in a wash bowl. In this case, if hot water is required, the risk is high and there is a problem in safety.

(Problems to be solved by the device) The problem to be solved by the present invention is that the installation of the automatic faucet on the top plate and the adjustment of temperature and flow rate are easily performed. The purpose is to enable the sensor to be used properly and to easily determine the reason why water supply does not start even if the sensor detects it.

(Means for Solving Problems) The technical means taken by the present invention to solve the above problems is to install a faucet body attached to a top plate, a water source and a hot water source inside a sink. A water branch pipe and a hot water branch pipe each having a solenoid valve are made to communicate with each other, and the faucet body is provided with an adjusting mechanism for setting the temperature and flow rate of the fluid by operating a lever on both sides, and a manual handle for a power failure. A pipe provided with an operating means for opening and closing a valve port formed in a second water chamber communicating with the primary chamber of the water branch pipe, and having a water discharge pipe and an electric cord inserted through the pipe joint at the upper portion of the faucet body. A first sensor that projects a cover and opens the solenoid valve at the extended end of the pipe cover only while detecting an object and closes the solenoid valve when the detection is completed. The second sensor that closes the solenoid valve by opening and sensing again And a water discharge head having a water discharge port that communicates with the water discharge pipe, and the second sensor and the solenoid valve are electrically communicated with the recessed portion of the lower front surface of the sink, The water discharge head is provided with a display unit in which a lamp is turned on when the electromagnetic valve is opened, in addition to the detection means arranged to operate in the same pattern as the sensor.

(Operation) When an object is detected by the first sensor or the second sensor attached to the water discharge head or the detection means provided at the bottom of the sink,
Simultaneously with opening the solenoid valve, the lamp on the display lights up and the fluid is discharged. At this time, when it is necessary to adjust the temperature and flow rate of the fluid, the hot water temperature is appropriately adjusted by operating the lever of the adjusting mechanism provided on the faucet body, and the first sensor also discharges water after sensing the object. The solenoid valve is opened and the fluid is continuously discharged while the object in the sink of the sink is being sensed, and the fluid is stopped when the object retreats. When it is sensed, the solenoid valve is opened to continuously discharge the fluid, and by sensing again, the solenoid valve is closed to stop the fluid discharge or to detect an object to stop the water while continuously discharging water. If there is no, the water will stop automatically when the preset time elapses,
When the first sensor, the second sensor, and the detection means detect an object, the fluid is not discharged, and when only the lamp of the display unit is lit, the lever is in the water stop position, so this lever is Operate in the water discharge direction to discharge water.

(Embodiment) An embodiment of the present invention will be described below in detail with reference to the drawings.

In the embodiment of the present invention, as shown in FIG. 1, in an automatic water discharge system A, a faucet body 1 which is a part of its constituent elements is implemented as a sink or a wash basin through a screw part 2 provided at a bottom portion. In the example, it is fitted into a mounting hole 4 formed in the top plate 3a of the sink 3 and is mounted from below the top plate 3a through a nut 5, and the inside of the screw part 2 is supplied with water for automatic discharge. The pipe 6, the water supply pipe 6a for manual discharge, and the hot water supply pipe 7 for automatic discharge are inserted to communicate with the first water chamber 9, the second water chamber 9a, and the hot water supply chamber 10 of the faucet body 1 on the downstream side. On the upstream side, the water supply pipes 6 and 6a are connected to the water supply source and are communicated with the primary chamber 31 and the secondary chamber 31a of the water branch pipe B having the solenoid valve 27 for connecting and disconnecting the fluid, and upstream of the hot water supply pipe 7. The solenoid valves 27, 27 and the faucet body 1 are communicated with the secondary chambers 31a of the hot water branch pipe C, which also has the solenoid valve 27, by communicating the sides with the hot water supply source. The first sensor 24 and the second sensor 24a of the water discharge head 21 provided at the extended end of the pipe cover 20 are electrically connected and the first sensor 2
4 and the second sensor 24a are separately installed in the upper part and the lower part of the chamber 23 of the water discharge head 21, and the solenoid valves 27, 27 are activated when a hand or other object is inserted above the upper second sensor 24a. Then, hot water and water are discharged and, for example, when the required amount of the sink or the bucket of the sink 3 is reached, a hand or other object is again placed above the second sensor 24a, or an electromagnetic wave is generated when a set time elapses. A lamp 25a is provided in the chamber 28 so that the valves 27, 27 are connected so as to be closed to stop the water and the electromagnetic valves 27, 27 can be visually confirmed to be open. The first sensor 24 is connected so as to discharge water when an object is inserted below it and stop water when the object is retracted, and the first sensor 24 and the second sensor 24a are connected to each other. Solenoid valve 27, 27, electric cord 2
6 and the electrical system including the switchboard 39 described later,
The separately provided detecting means 29 is composed of a light projecting member 37 and a light receiving member 38 which are attached to both inner walls of the recessed portion 36 opened in the lower front surface of the sink 3 so as to face each other. , 26a by connecting to the solenoid valves 27, 27, when inserting a foot or other object into the recessed portion 36, the solenoid valves 27, 27 operate in the valve opening direction to continuously discharge water, It is connected so that the object is detected again or the water is automatically stopped when the preset water discharge time elapses. The first sensor 24 and the second sensor 24a discharge the fluid and stop the water in different patterns, and the first sensor 24 detects the electromagnetic waves when it senses an article such as an article, a vegetable or the like that needs cleaning or a hand or the like. The valve bodies 28, 28 of the valves 27, 27 are opened to start the discharge of the fluid, and when the object is retracted from the first sensor 24, the valve bodies 28, 28 are closed and the discharge of the fluid is stopped. However, while there is an article in the sink of the sink 3 or while sensing an object such as a hand for washing the article, water is discharged for a preset time, or the above set time elapses,
It stops when it no longer senses an object. The second sensor 24
When a detects an object, the same as the valve element 2 of the solenoid valves 27, 27
Even if the valves 8 and 28 are opened to start the discharge of the fluid and the object is retracted from the second sensor 24a from this state, the second sensor 24a is electrically operated by the water discharge for a preset time. Since the set time period elapses or the second sensor 24a consciously senses the object again, the valve body 2
8 and 28 are closed and the discharge of the fluid is stopped. The detection means 29 also operates in the same pattern as the second sensor 24a, and when the solenoid valves 27 and 27 are open, the display 25 The lamp 25a is connected so that it lights up. As shown in FIG. 1, the water branch pipe B is divided into a primary chamber 31 and a secondary chamber 31a by a partition wall 32, and the primary chamber 31 is provided with a water inlet 30 communicating with a water supply source. The partition wall 32 is in constant communication with the second water chamber 9a of the faucet body 1 through the water supply pipe 6a.
The valve seat 28 of the solenoid valve 27 is made to correspond to the valve seat hole 33 projectingly openable and closable, and the valve bodies of the solenoid valves 27, 27 are signaled by signals from the first sensor 24, the second sensor 24a or the detection means 29. 28, 28
The primary chamber 31 communicates with the secondary chamber 31a only when is open,
Water is communicated so as to be supplied to the first water chamber 9 of the faucet body 1 through the water supply pipe 6. The hot water branch pipe C has the same structure as the hot water branch pipe B, but the hot water inlet 30a communicates with a hot water supply source, and a blind lid 35 is screwed to an outlet 34 of the primary chamber 31, and the solenoid valve 27, Hot water is in the primary chamber only when 27 valve bodies 28 are open.
The blind hole of the movable plate valve 13 is supplied to the hot water supply chamber 10 of the faucet body 1 through the valve seat hole 33, the valve seat hole 33, the secondary chamber 31a and the hot water supply pipe 7, and through the through hole 8a communicating with the hot water supply chamber 10. 13a and communicates with the blind hole 13a so as to be mixed with water reaching through the through hole 8 communicating with the first water chamber 9. The hot water mixed in the blind hole 13a is The hole 13a communicates with the through hole 8b shown in FIGS. 5A and 5B so as to reach the through hole 16b, which will be described later, through the merging chamber 16. In the valve chamber 11 of the adjusting mechanism D, a fixed plate valve 12 having the through holes 8, 8a and the through hole 8b, and the blind hole 13a.
And a movable plate valve 13 which is connected to an operating means 14 having a lever 15 and which is connected to the second water chamber 9a.
The valve body 19 at the inner end of the handle shaft 18 shown in FIGS. 2 and 5 is attached to and detached from the handle 17, and a manual handle E is attached to the outer end of the handle shaft 18, thereby allowing the automatic water discharge system A to be operated. Is stopped or the wiring system including the switchboard 39 is broken, the valve port 17 is manually opened to allow the water in the second water chamber 9a to flow through the merging chamber 16 and communicate with the merging chamber 16. From the through hole 16b of 16a through the water discharge pipe 20a shown in FIG. 3, the water discharge pipe 22a communicates with the water discharge port 22 communicating with the end of the water discharge pipe 20a. FIG. 6 is a time chart showing the connecting operation of the first sensor 24 and the second sensor 24a, the solenoid valves 27, 27, and the switchboard 39.
In (a), the first sensor 24 detects an object and the solenoid valves 27, 27 are detected.
Is turned on to start water discharge, and when the first sensor 24 no longer senses an object, the solenoid valves 27, 27 are turned off to stop water.
In the case of (b), when the second sensor 24a senses an object, the solenoid valves 27, 27 are turned on to discharge water, and even if the object is erased from the second sensor 24a, water discharge is continued and the object is again detected by the second sensor 24a. When it is detected, the electromagnetic valves 27, 27 are closed to stop the water. In the case of (c), the first sensor 24 detects an object and the solenoid valves 27, 27 are turned on to start spouting, and then the first sensor 24 detects an object, but the solenoid valves 27, 27 are turned on. (That is, when the first sensor 24 and the second sensor 24a are mixed), the water is discharged without changing the state of water discharge,
Even if the first sensor 24 no longer senses the object, the second sensor 24a still senses the object, so the solenoid valves 27, 27
Remains open. After that, the second sensor 24a senses the object again to turn off the solenoid valves 27, 27 to stop the water. In the case of (d), the second sensor 24a detects an object and the solenoid valves 27, 27 are turned on to start discharging water. After that, even if the first sensor 24 senses an object (that is, when washing things in the sink of the sink 3 or washing vegetables), the water discharge is continuous, and the second sensor 24a senses the object again. If you do, the water will stop automatically. That is, the response of the sensor is given priority to the second sensor 24a. Therefore, as in the case of (e), the second sensor 24a detects an object and the solenoid valves 27, 27 are turned on.
Even if water discharge starts next and the second sensor 24a then detects an object and tries to stop the water, the first sensor 24 continues to detect the object, so the solenoid valves 27, 27 are not turned off, so the water is stopped. Don't do After that, when the above cleaning work is completed and the object is erased from the first sensor 24, the solenoid valves 27, 27
Turn off and stop water. In the case of (f), the first sensor 2
When 4 senses an object and turns on solenoid valves 27, 27 to start water discharge and continues that object sensing state for about 10 minutes, solenoid valves 27, 27
It has a timer function that turns off and stops the water. In the case of (g), the second sensor 24a detects an object and turns on the solenoid valves 27, 27 to start water discharge, and the corresponding relationship of object detection is continued for about 10 minutes or more, or the object is detected again. If there is no solenoid valve 27, 27 has a timer function to turn off and stop the water, the solenoid valve 27, 27, the first sensor
The second sensor 24a, the second sensor 24a, the display unit 25, and the detection unit 29 are configured to be electrically connected to the switchboard 39 provided inside the sink 3.

Now, the first sensor shown in FIG. 3 should be stored in the sink of the sink 3 in order to store the hot water necessary for washing the items or vegetables.
When an object such as an article or a hand is inserted below 24, the first sensor 24 is responsive to the presence of this object, and the responsive action of the first sensor 24 activates the switchboard 39 to cause the electrical cord.
The electromagnetic valves 27, 27 of the water branch pipe B and the hot water branch pipe C are excited via 26 to operate the valve bodies 28, 28 to open the valve seat holes 33, 33, and at the same time as this opening, the display unit 25 Lamp 25a of turns on. By opening the valve seat holes 33, 33, water is supplied from the primary chamber 31 of the water branch pipe B shown in FIGS. 1 and 2 through the valve seat hole 33, the secondary chamber 31a and the water supply pipe 6 to the faucet body 1 To the first water chamber 9. Hot water reaches the hot water supply chamber 10 of the faucet body 1 from the primary chamber 31 of the hot water branch pipe C, the valve seat hole 33, the secondary chamber 31a, and the hot water supply pipe 7. This hot water supply room
The hot water of 10 and the water in the first water chamber 9 pass from the water supply chamber 9 through the through hole 8 to the blind hole 13a of the movable plate valve 13 as shown by the arrow in FIG. Each of the hot water reaches the blind hole 13a via 8a, joins in the blind hole 13a, and is mixed appropriately, and this hot water is passed through the through hole 8b shown in FIGS. The water reaches the water discharge pipe 20a in the pipe cover 20 through the order of the through holes 16b of the pipe joint 16a communicating with the chamber 16, and water is discharged from the water discharge port 22 of the water discharge pipe 20a. In this case, the water discharge will stop automatically when the sensing time of the object exceeds about 10 minutes. Since this water discharge pattern is shown in FIG. 6 (f), it is suitable for cleaning heavily soiled articles and vegetables with a lot of leaves.

If the fluid is not discharged even though the lamp 25a is turned on, the lever 15 is at the water stop position shown in FIG. 1, and therefore it should be operated to the left in FIG. 2 (in the figure). For example, the fluid is discharged in the relationship of opening the fixed plate valve 12 and the movable plate valve 13 shown in FIG. Further, when the lamp 25a does not light up, it indicates that an abnormality has occurred in the wiring system including the first sensor 24, the solenoid valves 27, 27 or the switchboard 39, and when it is desired to stop the water discharge, the object is placed below the first sensor 24. When retracted from the space, the excitation of the solenoid valves 27, 27 disappears, the valve bodies 28, 28 are closed, and at the same time the lamp 25a is turned off to stop the discharge.

Next, when the object is inserted into the space above the second sensor 24a or the recessed portion 36 of the detection means 29, the solenoid valve is used as described above.
At the same time when the valve bodies 28, 28 of the valves 27, 27 are opened, the lamp 25a is turned on and the fluid is supplied from the water outlet 22 through the above-mentioned path. Since this fluid is supplied according to the pattern of FIG. 6 (g), it continues even when the object is retracted from the second sensor 24a or the recessed portion 36, and it is about 10 minutes which is a preset time from the start of water discharge. After passing, the water discharge will stop automatically. Further, in order to stop the water discharge when the above-mentioned water discharge pattern is carried out by the patterns shown in FIGS. 6 (a) to 6 (e), the object is again intentionally extended to the second sensor 24a or the recessed portion 36 to discharge the water. Be stopped. In this case the second sensor
If the discharge of the fluid is stopped by operating the lever 15 of the adjusting mechanism D without forgetting to send the object to the 24a or the recessed portion 36, the valve bodies 28, 28 of the solenoid valves 27, 27 are opened. It is possible that the user is left as it is, but in that case, check that the solenoid valves 27, 27 are open even if the discharge of water stops because the lamp 25a lights up. Does not forget to close the solenoid valves 27, 27, and at the same time, if the discharge pattern of (f) or (g) in FIG. Is blocked. Next, when automatic water supply becomes impossible due to a failure of the electric system including the switchboard 39 or a sudden power failure, the manual handle E is operated to operate the valve opening of the faucet body 1.
When 17 is released, water reaches the confluence chamber 16 from the primary chamber 31 of the water branch pipe B through the water supply pipe 6a, the second water chamber 9a and the valve port 17.
After that, the water is supplied to the outside from the water outlet 22 through the same route as described above. When the water supply is completed, the manual handle E may be operated in the water stop direction.

(Effect) Since the present invention is configured as described above, it has the following advantages.

(1) At the extended end of the pipe cover containing the water discharge pipe and the electric cord, the solenoid valve is opened only while the object is being sensed, and the solenoid valve is closed when sensing is complete. Then, the solenoid valve is opened and the sensor is closed again to close the solenoid valve, and the water discharge head equipped with the water discharge port is attached to the sink. Since the detection means that operates in the pattern of No. 1 is arranged, the first sensor, the second sensor, or the detection means can be used in various water discharge patterns according to the application, and the convenience of use and the handicapped user Not only is it very convenient, but it is extremely safe to supply hot water only.

(2) The water discharge head is equipped with a display that lights the lamp only when the solenoid valve is open, so that the open / closed state of the solenoid valve can be visually confirmed. If the lamp is lit without discharging, it is possible to immediately determine that the lever is in the water stop position, and if the lamp is not lit, promptly confirm that the sensor or solenoid valve has failed. You can

(3) Unlike the conventional one in which the temperature control valve has to be mounted at a position different from the faucet body, hot and cold water that connects a pair of water branch pipes and hot water branch pipes having solenoid valves to the water discharge head Since the adjustment mechanism and the valve opening and flow path that can be opened and closed manually are placed in the middle of the distribution route, it is not only very convenient, but also the sink or wash basin can be easily installed on the top plate and The space on the upper surface can be effectively used.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a partially broken layout of the device of the present invention,
2 is an enlarged partial vertical sectional view taken along line XX in FIG. 1, FIG. 3 is a partially enlarged side sectional view taken along line YY in FIG. 1, and FIG. 4 (a). Is an enlarged sectional view taken along line VV in FIG. 3, FIG. 4B is an enlarged sectional view taken along line WW in FIG. 3, and FIG. 5A is shown in FIG. Fig. 5 (b) is an enlarged sectional view of the Z'-Z 'line in Fig. 2, and Fig. 6 is a time chart showing various water discharge patterns. FIG. 7 is an explanatory diagram of a conventional technique. (Explanation of symbols of main parts) 1 ... faucet body, 3 ... sink 14a ... operating means, 16a ... pipe joint 17 ... valve port, 20 ... pipe cover 20a ... spout pipe, 21 ... Water spout head 22 …… Water spout, 24 …… First sensor 24a …… Second sensor, 25 …… Display unit 26,26a …… Electric cord, 27 …… Solenoid valve 29 …… Detecting means, 36 …… Recessed Part 39: Switchboard A: Automatic water discharge system B: Water branch pipe, C: Hot water branch pipe D: Adjustment mechanism, E: Manual handle

Claims (2)

[Scope of utility model registration request] 1. A faucet body 1 attached to a top plate 3a and a water supply source and a hot water supply source are connected to each other by a water branch pipe B and a hot water branch pipe C provided inside a sink 3 and having an electromagnetic valve 27, respectively. The faucet body 1 is provided with an adjusting mechanism D for setting the temperature and flow rate of the fluid by operating the levers 15 on both sides, and a manual handle E for a power failure or the like.
Operation of the second water chamber communicating with the primary chamber 31 of the water branch pipe B
9a is provided with an operating means 14a for opening and closing the valve port 17, and a pipe cover 20 in which the water discharge pipe 20a and the electric cord 26 are inserted is projectingly provided on the upper part of the faucet body 1 through the pipe joint 16a. , A first sensor 24 that opens the solenoid valve 27 on the extended end of the pipe cover 20 only while sensing an object and closes the solenoid valve 27 when sensing ends, and a solenoid valve 27 when sensing an object. A second sensor 24a for closing the solenoid valve 27 by opening and re-sensing and a water discharge head 21 having a water discharge port 22 communicating with the water discharge pipe 20a are provided in a protruding manner, and a recessed portion on the lower front surface of the sink 3 is formed. Department
An automatic water faucet is provided with a detection means 29, which is electrically connected to the first sensor 24, the second sensor 24a and the solenoid valve 27 and operates in the same pattern as the second sensor 24a. system. 2. The automatic faucet system according to claim 1, wherein the water discharge head 21 is provided with a display section 25 for turning on a lamp 25a when the electromagnetic valve 27 is opened.