JP6187912B2 - Bathroom water discharger - Google Patents

Description

  The present invention relates to a bathroom water discharger for discharging hot water from each of a plurality of water discharge units provided in a bathroom.

  In general, a plurality of water discharge units are provided in the bathroom. For example, in Patent Document 1, there are three water discharge units, that is, a bathtub faucet for discharging hot water in a bathtub, a washing faucet provided in a bathroom washing area, and hot water on a floor that is a bathroom washing area. The thing provided with the hot water nozzle for floor surface heating for spraying and heating is described.

  In addition, a shower head for washing the body in a washing place or the like is usually connected to a faucet for washing place through a shower hose. And as disclosed in Patent Document 2, a drainage device is provided in the shower hose to drain the remaining water accumulated in the shower hose when the shower head is not used to the outside, and the remaining water that has become cold when reused It is also known to prevent water from being discharged from the shower head.

JP 2001-65897 A JP-A-11-192177

  However, the conventional water draining device exerts a water draining function in a state where the shower head is hung on the hook portion provided on the wall surface of the bathroom when not in use, but the shower head is placed on the floor surface of the washing place. There is a problem that the draining function is not exhibited in the state of being left.

  The shower hose is connected to the pipe on the faucet side, and hot water from the water heater is supplied through this pipe. In the shower hose drainage device, this pipe is used when the shower head is not used. Residual water collected inside cannot be drained to the outside. For this reason, the remaining water that has become cold water in the pipes at the time of reuse is first discharged from the shower head, and there is also a problem that the user feels unpleasant by bathing the cold water on the body.

  The present invention has been made in view of such various points, and the problem is that, in particular, when using a bathroom provided with at least a floor surface warming water discharge unit and a shower head, the user must first Focus on using the floor warming spout and then using the showerhead. And when using the water discharging part for floor surface heating from this attention point, the remaining water which accumulates inside the shower hose and piping connected to the shower head is drained outside. Thereby, the water discharge apparatus for bathrooms which can prevent reliably that the residual water used as the cold water at the time of use of a shower head is discharged from a shower head is provided.

  In order to solve the above-mentioned problems, the present invention provides a water discharge device for floor surface heating provided in the bathroom for spraying hot water on the floor surface of the bathroom as a water discharge device for bathroom, A shower head provided for supplying hot water to the body, a switching valve for guiding hot water supplied from the water heater side to the water discharge part or the shower head, and connecting the switching valve and the water discharge part A first pipe line, a second pipe line that connects the switching valve and the showerhead, and a third line that connects the middle of the first pipe line and the middle of the second pipe line. A pipe and an opening / closing valve provided in the third pipe, and when spraying hot water from the water discharger by switching the switching valve, the opening / closing valve is opened, and the inside of the second pipe Residual water is sucked into the first pipeline side, or hot water from the first pipeline is supplied into the second pipeline. Sea urchin to configure.

  Here, in the middle of the first pipe line, a venturi pipe having a low pressure portion formed by reducing the pipe area is provided, one end of the third pipe line is connected to the low pressure portion of the venturi pipe, and the water discharge When opening the on-off valve when spraying hot water from the section, a negative pressure is generated on the second pipe side through the third pipe line by the flow of hot water flowing through the first pipe line, It is preferable that the residual water in the second pipe line is sucked to the first pipe side.

  Further, when the spraying of hot water from the water discharge section is stopped or during the spraying of hot water and the hot water temperature is equal to or higher than a predetermined temperature, hot water is supplied to the second pipe line for a predetermined time by switching the switching valve. It is preferable to configure.

  According to the bathroom water discharger of the present invention, when hot water is sprayed from the floor warming water discharge part, the remaining water in the shower head side pipe is sucked by the flow of the hot water flowing through the water discharge part side pipe. Or it is pushed out and drained to the outside. For this reason, it can prevent reliably that the residual water used as the cold water at the time of use of a shower head is discharged from a shower head.

FIG. 1 is a block configuration diagram showing the overall configuration of a bathroom water discharger according to an embodiment of the present invention.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments that are modes for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 shows an overall configuration of a bathroom water discharger A according to an embodiment of the present invention. This water discharge device A is an electronic water tap type of a hot and cold water mixing type, and a water supply pipe 1 and a hot water supply pipe 2 are connected to a mixing pipe 4 via a mixing section 3, and the mixing pipe 4 is a flow path switching valve 5. Are connected to the three water discharge sections 6, 7, and 8.

  The water supply pipe 1 is provided with a manually opened / closed stop valve 11, a check valve 12 and an electric flow rate adjusting valve 13 in order from the upstream side, and the hot water supply pipe 2 is also manually opened / closed in order from the upstream side. A water stop valve 14, a check valve 15 and an electric flow rate adjusting valve 16 are provided. The hot water supply pipe 2 is provided with a flow rate sensor 17. The mixing pipe 4 is provided with an electromagnetic water stop valve 18 and a flow rate sensor 19.

  Of the three water dischargers 6 to 8, the water discharger 6 is a floor surface heater provided in a predetermined shape and in an appropriate shape in the bathroom in order to heat by spraying hot water on the floor surface that is a bathroom washroom. It is for warm use. The water discharger 7 is a shower head provided to supply hot water to the body or wash the body on the washroom in the bathroom, and the water discharger 8 is a faucet for a washroom provided in the bathroom washroom. It is. In the following description, in order to distinguish the three water discharge units 6 to 8, the water discharge unit 6 is referred to as a warm water discharge unit, the water discharge unit 7 is referred to as a shower head, and the water discharge unit 8 is referred to as a faucet.

  The flow path switching valve 5 is an electric type for guiding hot water having a predetermined temperature supplied from the junction pipe 4 on the hot water supply side to any one of the warm water spouting section 6, the shower head 7 and the faucet 8. It consists of a four-way valve. The flow path switching valve 5 and the warm water discharger 6 are connected by a first pipe line 21, and the flow path switching valve 5 and the shower head 7 are connected by a second pipe line 22. . The second pipe line 22 includes a shower hose having flexibility on the shower head 7 side and a pipe made of inflexible synthetic resin or metal on the flow path switching valve 5 side.

  In the middle of the first pipe 21, a venturi pipe 23 having a low pressure portion formed by narrowing the pipe area is provided, and one end of a third pipe 24 is connected to the low pressure portion of the venturi pipe 23. The other end of the third conduit 24 is connected to the pipe portion of the second conduit 22. Therefore, the middle of the first pipeline 21 and the middle of the second pipeline 22 are connected by the third pipeline 24, and an electromagnetic on-off valve is located in the middle of the third pipeline 24. 25 is provided.

  The operations of the flow rate adjusting valves 13 and 16, the water stop valve 18, the flow path switching valve 5, and the on-off valve 25 are all controlled by a controller 31 that is a control unit of the water discharge device A. The controller 31 is composed of a microcomputer or the like, and a power circuit 32 is connected to the controller 31 via a power cable, and a display / operation unit 33 is connected via a communication cable. The display / operation unit 33 is for exhibiting an operation function and a display function when the user sets the hot water temperature or selects which of the three water discharge units 6 to 8 is used. .

  The controller 31 includes a thermistor 41 that measures the temperature of water flowing in the water supply pipe 1, a thermistor 42 that measures the temperature of hot water flowing in the hot water supply pipe 2, and a thermistor that measures the temperature of hot water flowing in the mixing pipe 4. 43 is connected so as to be able to exchange signals. For this reason, the controller 31 can recognize the temperature of the water supplied through the water supply pipe 1, the temperature of the hot water supplied through the hot water supply pipe 2, and the temperature of the hot water discharged through the mixing pipe 4. The controller 31 can recognize not only the amount of hot water supplied through the hot water supply pipe 2 and the amount of hot water discharged through the mixing pipe 4 based on the signals of the two flow sensors 17 and 19, but also the amount of both hot water. The amount of water supplied through the water supply pipe 1 can also be recognized from the difference.

  In FIG. 1, 44 and 45 are drain plugs.

  Next, the operation of the water discharge device A will be described. The water discharge device A uses the temperature and flow rate hot water set by the display / operation unit 33 of the controller 31 and the heating selected by the display / operation unit 33. Water is discharged from the water discharger 6, the shower head 7 or the faucet 8. At this time, the controller 31 starts water discharge by opening the water stop valve 18 and switches the flow path switching valve 5 in accordance with the selected warm water discharge unit 6, shower head 7 or faucet 8. The controller 31 controls the flow rate adjusting valves 13 and 16 from the output values of the thermistors 41 and 42, respectively, and adjusts the flow rate of water and the flow rate of hot water, so that the temperature set by the display / operation unit 33 can be adjusted. While using hot water, feedback control of hot water temperature is performed from the output value of the thermistor 43. When a water stop operation is performed on the display / operation unit 33, the controller 31 closes the water stop valve 18 to stop the water.

  Regarding the adjustment of the water discharge amount to the flow rate selected by the display / operation unit 33, the controller 31 performs the following two types of operations in accordance with instructions from the user. One is a normal water discharge mode for discharging water by adjusting the flow rate adjusting valves 13 and 16 to an opening amount set in advance corresponding to the flow level set by the display / operation unit 33. The other is a metering water discharge mode in which water is discharged after adjusting to a flow rate set in advance corresponding to the flow rate level set by the display / operation unit 33. These two modes can be switched by the user selecting on the display / operation unit 33.

  Further, when the user selects the warm water spouting unit 6 with the display / operation unit 33 prior to bathing, the controller 31 is supplied through the first pipe line 21 by switching the flow path switching valve 5 described above. Hot water of a predetermined temperature is sprayed from the warm water spouting unit 6 to the floor surface to heat. At the same time, the controller 31 opens the on-off valve 25. At this time, a negative pressure is generated on the second pipeline 22 side via the third pipeline 24 due to the flow of hot water flowing through the first pipeline 21, and residual water in the second pipeline 22 is generated. It is sucked to the first pipeline 21 side and drained from the warm water discharger 6 to the outside. For this reason, when the shower head 7 is used, that is, when taking a bath, the remaining water that has become cold water in the second pipe 22 is not discharged from the shower head 7, and the user bathes cold water on the body as in the past. There is no unpleasant feeling.

  The spraying of hot water from the warm water spouting unit 6 is stopped by closing the water stop valve 18 when a predetermined time (for example, 60 seconds) has elapsed from the start of spraying using a timer built in the controller 31. It has become. At this time (specifically, before stopping), the controller 31 closes the on-off valve 25 and supplies hot water to the second pipeline 22 by switching the flow path switching valve 5 for a predetermined time. Thereby, since the hot water is filled in the second conduit 22, the hot water is immediately discharged from the shower head 7 when the shower head 7 is used, and the user can experience a comfortable shower. Here, the predetermined time is a time sufficient to fill the second pipe 22 with hot water.

  In addition, this invention is not limited to the said embodiment, A various other form is included. For example, in the above-described embodiment, when the spraying of hot water from the warm water discharger 6 is stopped, the hot water is supplied to the second pipeline 22 by switching the flow path switching valve 5 for a predetermined time. However, the present invention is not limited to stopping hot water spraying, but the second pipe is switched by switching the flow path switching valve 5 when hot water is spraying from the warm water spouting section 6 and the hot water temperature is equal to or higher than a predetermined temperature. You may comprise so that hot water may be supplied to the path | route 22 for a predetermined time.

  In the above-described embodiment, the venturi pipe 23 is provided in the middle of the first pipe 21. However, the third pipe path is provided in the middle of the first pipe 21 having a constant diameter without the venturi pipe 23. One end of 24 may be connected. In this case, when hot water is sprayed on the floor surface from the warm water spouting unit 6 and heated, when the on-off valve 25 is opened, a part of the hot water flowing through the first pipe line 21 passes through the third pipe line 24. Into the second conduit 22. Thereby, the remaining water that has become cold water in the second pipeline 22 is pushed out of the shower head 7 and drained, and the remaining water in the second pipeline 22 is replaced with hot water. For this reason, in this case as well, the remaining water that has become cold water in the second conduit 22 is not discharged from the shower head 7 when the shower head 7 is used, that is, when taking a bath. There is no unpleasant feeling in the bath.

  Furthermore, in the said embodiment, the hot water of the predetermined temperature supplied from the mixing pipe | tube 4 which is a water heater side is for guide | inducing to the water discharge part of any one of the heating water discharge part 6, the shower head 7, and the tap 8 for washing places. The case where the flow path switching valve 5 including an electric four-way valve is provided has been described. However, the present invention may be provided with a switching valve or switching unit having a function of adjusting the flow rate in each channel together with the channel switching function, instead of the channel switching valve 5. In that case, when hot water is sprayed on the floor surface from the warm water spouting unit 6 and heated, the spray area can be widened by changing and adjusting the flow rate of hot water to be sprayed.

A Water discharge device for bathroom 5 Flow path switching valve 6 Water discharge portion for warming floor (warming water discharge portion)
7 Shower head (water discharge part)
DESCRIPTION OF SYMBOLS 21 1st pipe line 22 2nd pipe line 23 Venturi pipe 24 3rd pipe line 25 On-off valve 31 Controller (control part)

Claims (3)

  A water discharger for warming the floor provided in the bathroom to spray hot water on the floor of the bathroom, a shower head provided for supplying hot water to the body in the bathroom, and a water heater A switching valve for guiding hot water supplied from the side to the water discharge part or the shower head, a first pipe connecting the switch valve and the water discharge part, and connecting the switching valve and the shower head A second pipe line, a third pipe line connecting the middle of the first pipe line and the middle of the second pipe line, and an on-off valve provided in the third pipe line And when spraying hot water from the water discharge part by switching the switching valve, the on-off valve is opened and the remaining water in the second pipe is sucked to the first pipe, or the first A bathroom water spouting device configured to supply hot water in a pipeline into the second pipeline.   In the middle of the first pipe line, a venturi pipe having a low pressure part formed by reducing the pipe area is provided, and one end of the third pipe line is connected to the low pressure part of the venturi pipe, When the on-off valve is opened when hot water is sprayed from the water discharge section, a negative pressure is generated on the second pipe side through the third pipe line due to the flow of hot water flowing through the first pipe line. The bathroom water discharge device according to claim 1, wherein residual water in the second pipeline is sucked toward the first pipeline. When the spraying of hot water from the water discharge section is stopped or during the spraying of hot water and the hot water temperature is equal to or higher than a predetermined temperature, the hot water is supplied to the second pipe line for a predetermined time by switching the switching valve. The bathroom water discharging apparatus according to claim 2.

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