JPH08247309A - Hot water filling plug unit - Google Patents

Abstract

PURPOSE: To provide a hot water filling plug unit which facilitates installation piping work and can build an automatic hot water filling system by which a hot water filling can be carried out conveniently and accurately. CONSTITUTION: The connection part 41 of a hot water filling plug unit 52 is connected to a hot water feed pipe 3 laid from the hot water supply pipe 2 side of a hot water supplyer 1 on a bathtub 4 side. The hot water filling plug unit 52 is constituted by collecting integrally a hot water delivery passage 53, a hot water turn on plug 5 interposed in this hot water delivery passage 53, a bypass passage 17 for allowing the upper stream of the hot water turn on plug 5 to communicate with its downstream, a flow sensor 9 for detecting a drop-in hot water amount interposed in the bypass passage 17, a drop-in solenoid valve 18 and an unit control circuit 16. When an automatic hot water filling to the bathtub 4 is carried out, a hot water produced in the hot water supplyer 1 is dropped in the bathtub 4 from the hot water feed pipe 3 through the bypass passage 17 after opening the drop-in solenoid valve 18 and when the drop-in hot water amount reaches a set value given in advance, the drop-in solenoid valve 18 is closed and a hot water filling operation is finished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water filling plug unit for dropping hot water from a water heater into a bathtub to fill the water.

[0002]

2. Description of the Related Art For example, FIGS. 8 and 9 show an automatic water filling system apparatus which operates an automatic water filling function of a water heater to automatically fill a bathtub. In the apparatus shown in FIG. 8, the hot water supply pipe 2 of the hot water supply device 1 is branched from the hot water supply pipe 3, and the tip end side of the hot water supply pipe 3 is arranged above the bathtub 4 to form a pipe.
A hot water tap 5 is provided on the tip side of the hot water supply pipe, and an automatic stop valve 7 such as an electromagnetic valve is provided in the hot water supply pipe 2 in the equipment case 6.
A control device (not shown) for controlling the combustion operation of the water heater 1 and the automatic water filling operation is provided in the equipment case 6, and the control device is provided with a switch for instructing the automatic water filling. Remote control 8 is connected.

When performing automatic filling of the bathtub 4 with this apparatus, the tap 5 is opened and the remote control 8 turns on the automatic filling operation switch. Then, the water heater 1 opens the automatic stop valve 7 to perform the combustion operation of the water heater 1, receives the signal from the flow sensor (flow rate sensor) installed in the appliance, and drops it into the bathtub 4 through the hot water pipe 3. The amount of hot water to be accumulated is integrated, and when the accumulated amount of dropped water reaches a predetermined value, the automatic stop valve 7 is closed and the automatic filling operation is finished.

The apparatus shown in FIG. 9 has a hot water supply pipe 3 branched from the hot water supply pipe 2 of the water heater 1 and arranged above the bathtub 4, as well as hot water for branching from the hot water supply pipe 2. The upholstered pipe 10 is connected to the wall surface of the bathtub 4, and an automatic hot water filling valve 11 such as a solenoid valve, a vacuum breaker 12 and a check valve 13 are connected in series to the hot water filling pipe 10 in the device.

When filling water with this system unit, operating the remote control 8 to push the automatic filling switch will open the automatic filling valve 11 and start the combustion operation of the water heater 1.
The hot water produced by the water heater 1 is passed through the water filling pipe 10 to the bathtub 4
Be dropped into. The control device in the water heater 1 receives the flow rate detection signal of the flow sensor installed in the appliance to obtain the cumulative amount of water dropped, and closes the automatic water filling valve 11 when a preset value is reached. And finish the hot water filling operation.

[0006]

However, in the system apparatus shown in FIG. 8, the water heater 1 is used when the hot water sent from the hot water supply pipe 2 is used, for example, in the kitchen during automatic water filling. Receiving the signal of the flow sensor inside,
Since the control device sums up the amount of hot water and the amount of hot water used in the kitchen at the same time, there is a problem that it is not possible to perform accurate hot water filling. After that, the automatic stop valve 7 is closed, so that there is an inconvenience that the hot water used in the kitchen also stops.

Further, when the sequence program of the control device is reset using the remote controller 8 when the automatic filling is completed, it is necessary to confirm that the person has purposely went to the bathroom and closed the hot water tap 5. There is an inconvenience that it must be done afterwards, and further, when the tap 5 is a mixed tap, it seems that the hot water on the water heater side and the water on the water pipe side were mixed and dropped into the bathtub 4. In this case, when the automatic stop valve 7 is closed at the end of the filling of water, there is a problem that only water is left out of the mixing faucet and poured into the bathtub 4, resulting in poor usability.

The system apparatus shown in FIG. 9 is provided with a water filling pipe 10 dedicated to the water filling, and since this water filling pipe 10 is provided with an automatic water filling valve 11, the problem of the device shown in FIG. 8 does not occur. Normally, this water filling pipe 10 must be piped from the water heater 1 outside the bathroom to the bathtub 4 through the wall hole in the bathroom, and there is a problem that the installation piping work is large and the construction cost increases.

[0009] In a general household, the proportion of the system apparatus having the automatic water filling function is still low, and normally, a single-function water heater without the water filling function is often used. When replacing the hot water supply single-function device without the water filling function with a water heater having an automatic water filling function, the device shown in FIG. 8 has the inconvenience as described above, and if it is replaced with the device shown in FIG. In order to newly install the water filling pipe 10, it is necessary to make a wall hole in the bathroom wall surface or to carry out a difficult work of drawing the piping around the bathroom floor, etc. In some cases, construction was almost impossible, and it was extremely difficult to replace it with a device that was easy to use.

By the way, in the system device as shown in FIG. 8, a faucet unit may be attached instead of the tap 5 of the hot water supply pipe 3, and as a faucet unit of this type,
The one shown in 10 is known. The unit shown in (a) of FIG. 10 has a pipe 46 on the water supply side and a pipe 47 on the hot water side, which are connected to the water supply or the like.
And merging via the single faucets 48a and 48b, respectively, and branching from the merging pipe through the switching cock 39 into a pipe on the shower 44 side and a pipe for dropping drip into the bathtub 4,
The hot water pipe 47 is connected to the hot water supply pipe 3. The faucet unit shown in (b) of FIG. 10 is a unit of a wax thermo type temperature controlled mixing faucet, and the amount of water entering the pipe 46 on the water supply side and the amount of hot water are controlled by the wax thermo 49 adjusted to the temperature of the filling water. Side tube 47
The amount of hot water coming in through is controlled to create hot water at the set temperature. The hot water passes through the water stop valve with water quantity counter 50, and through the switching cock 39 to the pipe on the shower 44 side and the bathtub 4. It is designed to be guided to a desired tube with the tube on the drop-in side. The water stop valve with water quantity counter 50, by manually setting the water quantity, the amount of hot water passing through this water stop valve 50 is counted, and the valve automatically closes when the count integrated value reaches the set value, The filling of water is stopped.

In the faucet unit shown in FIG. 10 (c), the shower 44 and the switching cock 39 in FIG. 10 (b) are omitted,
The hot water discharged from the water stop valve 50 with a water counter is dropped directly into the bathtub 4. In each of the faucet units of FIGS. 10 (a), 10 (b), and 10 (c), the hot water side pipe 47 is connected to the hot water supply pipe 3 to perform hot water filling. When filling water using the faucet unit, it is necessary to manually operate the single faucets 48a and 48b to adjust the amount of water and the amount of hot water, and at the end of filling water. The inconvenience is that the sequence program on the water heater side cannot be reset unless the user goes to the bathroom and closes the single faucets 48a and 48b.

Further, when the water faucet unit shown in FIG. 10 (b) is used to fill the water, the water stop valve 50 with the water counter automatically closes when the water filling is completed. Although it is possible to immediately reset the water filling control sequence program using, there is the trouble that the next time the water is filled, the user has to bother to go to the bathroom and reset the water counter.

Further, even when the faucet unit shown in FIG. 7C is used, as in the case of FIG. 7B, every time water is filled, the user goes to the bathroom to set the water quantity counter. There is the inconvenience of having to do it again.

The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to construct a new water heater with a hot water filling function or to perform a hot water filling function from an existing single hot water supply device. It is an object to provide a water filling plug unit that can be easily installed and installed by replacing it with an attached hot water supply device, is easy to use, and can perform accurate water filling.

[0015]

In order to achieve the above object, the present invention is constructed as follows. That is, the first invention is a water filling plug unit connected to a hot water supply pipe for guiding hot water from a water heater, dropping it into a bathtub, and dropping it.
The water filling tap unit includes a connection portion connected to the hot water supply pipe, a hot water discharge passage extended and formed with the connection portion as a proximal end side, a water tap provided in the hot water discharge passage, and the water tap. The bypass passage communicating between the upstream side and the downstream side of the, and the drop control valve that is interposed in the bypass passage and is controlled to open / close by the hot water filling control signal are integrated.
The hot water stopper unit is characterized by being provided with a flow sensor for detecting the amount of hot water dropped into the bathtub through the bypass passage.

A second aspect of the present invention is a hot water plug unit connected to a hot water pipe for guiding hot water from a hot water supply device, dropping the hot water into a bath, and dropping the hot water into the bathtub. A connecting portion connected to the pipe, a dropping passage formed by branching and extending with respect to the hot water supply pipe with the connecting portion as a base end side, and a drop passage that is interposed in the dropping passage and is controlled to be opened and closed by a filling control signal. And a drop control valve are integrated together, and this water filling plug unit is provided with a flow sensor for detecting the amount of hot water dropped into the bathtub from the drop passage. Is configured.

Further, the water filling plug unit receives the detection signal of the flow sensor and integrates the amount of water dropped,
It is also a characteristic configuration of the present invention that a unit control circuit that closes the drop control valve when the integrated value reaches a preset value is provided.

[0018]

In the present invention having the above structure, an automatic filling system is formed by connecting the connection portion of the filling plug unit to the hot water supply pipe of the water heater. When performing automatic filling of the bathtub, the drop control valve is opened, and the hot water produced by the combustion operation of the water heater is dropped into the bathtub from the hot water pipe through the bypass passage or the drop passage. At this time, the amount of hot water dropped into the bathtub is accurately detected by the flow sensor in the hot water stopper unit, and when the amount of hot water reaches a predetermined value, the drop control valve is closed and the automatic bath The filling operation is completed.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first filling device unit according to the present invention.
Is shown with an automatic filling system. In the figure, the water heater 1 has an automatic hot water filling function similar to that of the device shown in FIG. 9 of the conventional example, for example. A temperature sensor for detecting the temperature and other sensors, devices, and parts necessary for combustion operation are built in.

A controller 15 is arranged in the water heater 1, and a remote controller 8 is connected to the controller 15.
A hot water supply pipe 3 is connected to the hot water supply pipe 2 of the water heater 1, and the characteristic water filling plug unit 52 of the present embodiment is connected to the tip end side of the hot water supply pipe 3. The water filling plug unit 52 has a connecting portion 41, and the water filling plug unit 52 is connected to the hot water supply pipe 3 through the connecting portion 41. From the connection portion 41, a hot water outlet passage 53 and a bypass passage are provided. And 17 are branched.
A single faucet 5 as a faucet is arranged in the tap water passage 53, and the tip end side of the tap water passage 53 is arranged toward the inside of the bathtub 4.

The tip end side of the bypass passage 17 is connected to the hot water outlet passage 53 at the downstream side of the single faucet 5, and the bypass passage 17 has a drop solenoid valve 18 functioning as a drop control valve and a flow sensor 9. The flow sensor 9 is provided so that the hot water sent from the hot water supply pipe 3 is in the bypass passage 17
It functions to detect the amount of hot water when dropped and dropped into the bathtub 4 through the.

The water faucet unit 52 has a unit control circuit
16 is provided, and the unit control circuit 16 includes the flow sensor 9 and the drop solenoid valve 18 in the water stopper unit 52.
And the unit control circuit 16 is connected to the water heater 1 side by an electric wiring material.
Connected by 15. The remote controller 8 and the controller 15
And the unit control circuit 16 constitutes a hot water filling control unit,
The filling of water is controlled by operating the remote controller 8.

FIG. 3 shows an example of the panel surface configuration of the remote controller 8. On the panel surface, if necessary, the hot water supply temperature setting unit 21, the hot water temperature setting unit 22 dropped into the bathtub 4, and the amount of hot water dropped. A setting unit 23, a timer setting unit 25 for setting the start of automatic filling by time or elapsed time, a water level setting unit 26 for setting the water level of the bath filling, and a hot water supply operation switch 27 for instructing hot water supply operation, A hot water filling operation switch 28 for instructing the operation of automatic hot water filling is provided.

Each of the setting sections 21 to 25 has a button 30 for setting a numerical value and a display section 31 for displaying the set numerical value, and the water level setting section 26 is set as a button 32 for setting the water level. And a display unit 33 for displaying the water level by a picture or the like. The drop time set by the timer setting unit 25 means the time for setting how many hours after the setting operation by the timer setting unit 25 the start of the filling operation is started. The setting information set by the remote controller and the switch information of the switches 27 and 28 are added to the control device 15, and the setting information set by the remote controller 8 and the switch information of the switch 28 are supplied to the control device 15 through the control device 15. It is adapted to be added to the unit control circuit 16 of the unit 52.

As shown in FIG. 2, the water filling tap unit 16 includes a dropped hot water amount measuring unit 34 and a dropped hot water amount input unit.
36, a valve closing signal command unit 39, and the amount of hot water set by the amount of hot water dropped setting unit 23 of the remote controller 8 is input to the amount of hot water dropping unit 36 of the unit control circuit 16, while Upon receiving a water filling operation start signal from the remote controller 8, the drop amount measuring unit 34 operates.

The drop amount measuring unit 34 receives the water amount detection signal from the flow sensor 9 in the water filling unit 52,
The integrated value of the amount of hot water dropped into the bathtub 4 through the bypass passage 17 is integrated, and the integrated value is compared with the drop set value of the amount of hot water dropped which is previously input to the dropped hot water amount input unit 36 to obtain the integrated value. A value coincidence signal is added to the valve closing signal command unit 39 when is the drop set value. In response to the signal, the valve closing signal command unit 39 applies a closing drive signal as a water filling control signal to the drop solenoid valve 18, whereby the drop solenoid valve 18 is closed.

The present embodiment is configured as described above,
The automatic filling operation is performed as follows. When the water filling operation switch 28 of the remote controller 8 is turned on, or when the time or time set by the timer setting unit 25 comes, the drop solenoid valve 18 is opened by the valve opening drive signal as the water filling control signal, The water supplied to the water heater 1 is turned into hot water by the combustion heat of the burner, and the hot water having the temperature set by the hot water temperature setting unit 22 is dropped into the bathtub 4 through the hot water supply pipe 3 and the bypass passage 17. Be done. During this hot water filling,
The dropped hot water amount measuring unit 34 of the unit control circuit 16 receives the hot water amount detection signal of the flow sensor 9 of the hot water filling unit 52 and integrates the dropped hot water amount. When the integrated value reaches the drop setting value set by the drop hot water amount setting unit 23 of the remote controller 8, the valve closing signal command unit 39 applies a closing drive signal to the drop electromagnetic valve 18, and the drop electromagnetic valve 18 Closes and the water filling operation ends.

The panel surface configuration of the remote controller 8 shown in FIG. 3 is an example of the panel surface configuration. As in this embodiment, the amount of dropped hot water input to the remote controller 8 and the flow sensor 9 are used. Detected and dropped hot water amount measurement unit
The water level setting unit 26 may be omitted when the dropping solenoid valve 18 is closed by comparison with the integrated value of the hot water calculated in 34.

According to the present embodiment, the automatic water filling system can be constructed by the piping work only by connecting the water filling plug unit 52 to the tip side of the hot water supply pipe 3.
Since it is not necessary to provide the water filling pipe 10 for exclusive use of water filling as shown in (1), the installation work is very easy.

Further, the solenoid valve for dropping the bypass passage 17
Since the water filling operation is controlled by opening and closing 18, when the hot water of the water heater 1 is used in the kitchen during the water filling operation, the drop solenoid valve 18 is closed and the hot water is closed. Even if the tensioning operation is stopped, the hot water of the water heater 1 can be used as it is in the kitchen without stopping, which is very convenient in terms of usability.

Further, the amount of hot water filled is detected by the flow sensor 9, which is provided in the bypass passage 17 of the hot water plug unit 52.
In order to detect only the amount of hot water dropped into the bathtub 4 through the bypass passage 17, even if hot water is used in the kitchen or the like during filling, the hot water used in the kitchen or the like is It is not detected by the flow sensor 9, and the unit control circuit 16 can accurately integrate the amount of dropped water and perform the water filling control in response to the detection signal of the flow sensor 9.

Since the flow sensor 9 and the drop control circuit 18 are electrically connected to the controller 15 on the side of the water heater 1 via the unit control circuit 16, the flow sensor 9 and the drop control circuit 18 are separated from each other. The number of electric wires is smaller than that of connecting the electric wires to the control device 15 of the water heater 1 directly with a large number of electric wires, and the electric wires can be simplified.

Furthermore, without using the tap (single tap) 5,
In other words, since the hot water filling operation can be performed with the hot water tap 5 closed, the sequence program of the hot water filling operation is performed after confirming that the hot water tap 5 is closed, as in the conventional apparatus shown in FIG. Need not be reset, and the sequence program can be reset using the remote controller 8 without having to go to the bathroom to check that the tap 5 is closed. Further, when the water filling operation switch 28 of the remote controller 8 is turned on at the start of the water filling operation, the water dropping control signal opens the solenoid valve 18 and the water is immediately dropped into the bathtub 4. When using a conventional water shutoff valve with a control counter, there is the trouble of having to go to the bathroom and set the water counter again when filling water. By using it, such troublesomeness can be eliminated.

Further, when it is desired to replace the hot water supply device having a hot water filling function with a hot water supply device having no hot water filling function at home, replace the pipe connected to the hot water supplying pot with a bathtub. It can be used as it is as the hot water supply pipe 3,
An automatic water filling system will be formed by simply attaching the water filling unit 52 to the existing pipe and connecting the electric wiring from the unit control circuit 16 to the control device 15, and thus making a hole in the bathroom wall or the bathroom floor. It becomes possible to easily construct a water heater with a water filling function and its system of the present embodiment in a collective housing such as an apartment where these difficult constructions are not required, because the difficult work of drawing the pipes to the surface becomes unnecessary.
The cost is also very cheap.

FIG. 4 shows a block diagram of the essential parts of the control portion of an automatic water filling system including a second embodiment of the water filling plug unit according to the present invention. The water filling tap unit of the second embodiment is different from the first embodiment in that the unit control circuit 16 has a clock 19, a time / hot water amount measuring unit 38, a water level set value input unit 43, and an arithmetic unit 37. Is provided so that the water level of the hot water that can be dropped into the bathtub 4 can be controlled. Other configurations are similar to those of the water filling stopper unit of the first embodiment. The configuration of the automatic water filling system including the above is also the same as that of the first embodiment shown in FIG.

In the second embodiment, after the filling operation is started, the time / hot water amount measuring section 38 receives a signal from the flow sensor 9 to integrate the dropped hot water amount, and also receives a clock signal from the clock 19 to fill the water. Measure the time from the start. On the other hand, the water level input by the water level setting unit 26 of the remote controller 8 is input to the water level set value input unit 43 of the unit control circuit 16, and in response to the signal, the calculation unit 37 uses the set water level level in advance. Based on the given information such as the size of the bathtub, calculate the amount of hot water required to fill the water and the required time, and measure the amount of hot water dropped by the time / hot water measuring unit 38 during automatic hot water filling. Value data is taken in and the calculated values of the amount of hot water dropped and the required time corresponding to the water level setting are automatically corrected.

The time / hot water amount measuring unit 38 compares the pouring hot water amount corresponding to the water level setting corrected and calculated by the arithmetic unit 37 with the integrated value of the measured pouring hot water amount, and the pouring amount corrected and calculated by the arithmetic unit 37. Of the pouring hot water amount and the measured pouring hot water amount and time are corrected for the pouring hot water amount by the correction calculation and the value for the water level setting of the dropping time When the calculated value is reached, a signal from the time / hot water amount measuring unit 38 is received, and a valve closing signal command unit 39 adds a closing drive signal as a hot water filling control signal to the solenoid valve 18 and the solenoid valve 18 It is closed and the filling operation is completed.

The second embodiment operates as described above, and this embodiment can also achieve the same effect as that of the first embodiment.

FIG. 5 shows a third embodiment of the water filling stopper unit according to the present invention together with an automatic water filling system. The water filling plug unit 52 of this embodiment is branched and connected to the hot water supply pipe 3 in which the hot water discharge tap (single water faucet) 5 is disposed on the tip side. Part 41,
The drop passage 40 branched from the hot water supply pipe 3 with the connecting portion 41 side as the base end side, the drop solenoid valve 18 as a drop control valve interposed in the drop passage 40, and the flow sensor 9 are assembled. It is integrated, and the tip end side of the drop passage 40 is arranged toward the inside of the bathtub 4. Further, the same unit control circuit 16 as that of the first embodiment is connected to the water stopper unit 52, and the drop solenoid valve 18 and the flow sensor 9 are electrically connected to the unit control circuit 16. Further, the unit control circuit 16 is connected to the control device 15 of the water heater 1 by an electric wiring material.

Also in this embodiment, since the automatic hot water filling system of the water heater can be constructed by simply connecting the hot water supply pipe 3 to the hot water filling unit 52, the installation of the hot water pipe is extremely easy. It operates in the same manner as in the embodiment described above, and can achieve the same effect.

6 and 7 show another embodiment of the present invention. Hot-water tap unit 52 shown in FIG.
Corresponds to the water filling plug unit shown in FIG. 1 of the first embodiment, and this water filling plug unit 52 is capable of closing the single faucet 5 of the first embodiment. It is constructed by the same mixing faucet 43 as in a), and the shower 44 is attached to the passage on one side of the mixing faucet 43, and the other configurations are the same as those in the first embodiment.

The embodiment shown in FIG. 7 is a mixed faucet capable of closing the single faucet 5 shown in FIG. 5 of the third embodiment.
43, and a shower 44 is provided in the passage on one side of the mixing faucet 43, and the other structure is the same as that of the third embodiment.

The apparatus of the embodiment shown in FIGS. 6 and 7 also has a very simple piping configuration, and has the same effects as those of the first and third embodiments.

The present invention is not limited to the above-mentioned embodiments, and various embodiments can be adopted. For example, in the embodiments of FIGS. 5 and 7, the single faucet (drain tap) 5 and the mixed faucet 43 are excluded from the water filling stopper unit 52.
The part surrounded by the number 54 including the single faucet 5 shown in FIG. 7 may be configured as a water filling plug unit, and the part surrounded by the number 55 including the mixed faucet 43 shown in FIG. May be configured as.

In the third to fifth embodiments, the unit control circuit 16 has the same circuit as that of the first embodiment, but the unit control circuit 16 has the same structure as that of the second embodiment. The water filling operation may be performed by setting the water level.

Further, the unit control circuit 16 is not limited to that of this embodiment, and the bypass solenoid valve 18 branched from the hot water tap 3 or the drop solenoid valve 18 provided in the drop passage 40 is opened and closed to hot water. It may have a function of performing a tensioning operation, receiving the detection signal of the flow sensor, integrating the amount of hot water dropped, and closing the drop control valve when the integrated value reaches a preset value. So long as it is a control circuit for any other filling function, for example,
The clock 19 and the water level set value input section 43 of the circuit shown in FIG.
The calculation unit 37 may be provided on the control device 15 side of the water heater 1, and the signal of the circuit on the control device 15 side may be fetched to the unit control circuit 16 side to control the closing operation of the drop solenoid valve 18. .

Also, a remote controller may be connected to the system control circuit 16 and the remote controller may be integrated into the water faucet unit 52. In such a case, the water filling operation can be performed on the bathroom side by using the remote controller.

Further, in each of the above embodiments, the unit control circuit 16 is provided in the water filling tap unit 52, but the unit control circuit 16 is not necessarily provided in the water filling tap unit 52, and the unit control circuit 16 is not necessarily provided. The controller of the water heater 1
It may be provided on the 15 side. Also, the electric wiring materials of the drop solenoid valve 18 and the flow sensor 9 may be wired and connected to the control device 15 side of the water heater 1 or to the remote controller 8 side.

Further, in each of the above embodiments, the drop control valve is constituted by a solenoid valve, but any other control valve may be used as long as it can control the opening / closing of the valve, and the opening / closing amount of the valve is not limited to the opening / closing amount of the valve. It may be a valve that can control the.

Further, in the above embodiment, the flow sensor 9
When installing the bypass passage 17 or the drop passage 40,
Although both are provided between the drop solenoid valve 18 and the hot water outlet, the flow sensor 9 may be provided between the drop solenoid valve 18 and the connecting portion 41.

[0051]

The hot-water tap unit of the present invention has a connecting portion for connecting the hot water of the water heater to the hot water supply pipe which is dropped and dropped into the bathtub. In the first invention, from this connecting portion In the second invention, a tap passage having a faucet is stretched, and a bypass passage communicating between the upstream side and the downstream side of the tap of the tap passage is provided. In the second invention, the drop passage is stretched from the connecting portion. Since the drop control valve is provided in the bypass passage or the drop passage, by controlling the opening and closing of the drop control valve by the hot water filling control signal,
Automatic hot water filling is possible. Moreover, since the automatic water filling operation is performed by opening and closing the water drop control valve of this water filling plug unit, if the hot water of the water heater is used in the kitchen during the automatic water filling operation, the water drop control is performed. Even when the valve is closed and the automatic filling is finished,
The convenience that the hot water used in the kitchen etc. can be continuously used without interruption is obtained.

Further, since the water filling tap unit is provided with a flow sensor for detecting the amount of hot water dropped into the bathtub through the bypass passage or the drop passage, the hot water is used in the kitchen or bath. Even if it does, the amount of hot water detected by the flow sensor of the water filling plug unit is not affected by the amount of hot water, and the amount of hot water dropped into the bathtub and filled with water is accurately detected. be able to. Then, the closing operation of the drop-in control valve is performed based on the detected value, so that it is possible to reliably perform accurate filling of the amount of hot water.

Further, based on the detection value of the flow sensor,
In the water faucet unit in which the unit control circuit for controlling the closing operation of the drop control valve is provided in the unit, the drop control valve and the flow sensor are connected to the water heater side through the unit control circuit. , Electric wires are drawn individually from the flow sensor and the drop-in solenoid valve, and compared with the case of connecting directly to the controller on the water heater side with a large number of these electric wiring materials, between the water filling tap unit and the water heater. The number of electric wires can be reduced, and the wires between the two can be simplified.

In addition, after resetting the automatic filling operation, when the sequence program of the automatic filling controller is reset by a remote controller or the like, in order to confirm that the tap is closed as in the conventional example. It is not necessary to go to the bathroom, and the reset operation can be performed immediately by operating the remote control, which is very convenient. In addition, if you connect a faucet unit equipped with a water stop valve with a water counter of the conventional example to the tip of the hot water supply pipe, go to the bathroom one by one and set the water counter at the start of the next filling of water. Although there is the inconvenience of having to fix it, the water filling stopper unit of the present invention does not have such an inconvenience, and automatic water filling is possible by simply operating the water filling start switch of the remote controller.

Further, in the case of installing and constructing an automatic water filling system using the water filling plug unit of the present invention, as shown in FIG.
There is no need to separately provide a dedicated water filling pipe as shown in
Further, even when replacing the existing hot water supply single-function device without a water filling function with the device having a water filling function of the present invention, the pipe line that is piped from the existing water heater to the bathtub is used as it is as a hot water supply pipe, Since it is only necessary to connect the water filling plug unit of the present invention to the pipe line, it is possible to easily build an automatic water filling system even in households where it is extremely difficult to add piping such as apartment houses, and the installation work can be done. It is possible to exert an excellent effect that it is very cheap.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a first embodiment of a water filling plug unit of the present invention together with an automatic water filling system.

FIG. 2 is a block diagram showing a main configuration of a control portion of a unit control circuit 16 of the above embodiment.

FIG. 3 is an explanatory diagram showing a configuration example of a panel surface of a remote controller used in the device of this embodiment.

FIG. 4 is a block diagram showing a main part configuration of a unit control circuit 16 of a second embodiment of the water faucet unit of the present invention.

FIG. 5 is a configuration diagram showing a third embodiment of a water filling plug unit of the present invention together with an automatic water filling system.

FIG. 6 is a configuration diagram showing a water filling plug unit of another embodiment of the present invention together with an automatic water filling system.

FIG. 7 is a system configuration diagram of still another embodiment of the present invention.

FIG. 8 is an explanatory diagram of a conventional automatic water filling system device.

FIG. 9 is an explanatory view of another conventional automatic water filling system device.

FIG. 10 is various explanatory views of a conventional faucet unit.

[Explanation of symbols]

 1 Hot water supply device 3 Hot water supply pipe 5 Hot water tap 8 Remote control 9 Flow sensor 15 Control device 16 Unit control circuit 17 Bypass passage 18 Drop-in solenoid valve 40 Drop-in passage 52 Hot water plug unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyo Fukuzawa 3-4 Fukamidai Yamato City, Kanagawa Prefecture Gaster Co., Ltd.

Claims (3)

[Claims] 1. A water filling plug unit connected to a hot water pipe for guiding hot water from a water heater to drop it into a bathtub, the hot water plug unit being connected to the hot water pipe. Section, a hot water outlet passage extended and formed with the connecting portion as a base end side, a faucet provided in the hot water outlet passage, a bypass passage communicating between the upstream side and the downstream side of the water tap, and the bypass passage. And a drop-in control valve that is controlled to open and close by a water-filling control signal.The water-filling plug unit is dropped into the bathtub through the bypass passage. A water filling plug unit, which is provided with a flow sensor for detecting the amount of hot water to be filled. 2. A hot water plug unit connected to a hot water pipe for guiding hot water from a hot water supply device and dropping the hot water into a bathtub, the hot water plug unit being connected to the hot water pipe. A drop portion, a drop passage that is formed by branching with respect to the hot water supply pipe with the connecting portion as a base end side, and a drop control valve that is interposed in the drop passage and is controlled to open and close by a fill control signal. The water filling plug unit is provided with a flow sensor for detecting the amount of hot water dropped into the bathtub from the dropping passage. Stopper unit. 3. A unit for closing a drop control valve when the amount of hot water dropped is integrated in response to a detection signal from a flow sensor, and when the integrated value reaches a preset value. The water filling stopper unit according to claim 1 or 2, further comprising a control circuit.