JP2011231499A - Warm water washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a warm water washing device preventing a user from feeling discomfort caused by washing hands with residual water when using a lavatory, and enabling the user to wash hands with warm water.SOLUTION: A warm water washing device 1 comprises: a toilet bowl body 2 with a seat 2b; a warm water supply device 3 for heating supplied water to generate warm water; a private parts washing device 4 for washing private parts of human body with warm water; a hand washing device 5 for discharging warm water from a tap 5a; a drain pipe 6 for draining warm water discharged from the hand washing device 5; a first switching valve 7a provided at the downstream side of the warm water supply device 3 for switching warm water supply between the private parts washing device 4 and a first pipe 8b leading to the hand washing device 5 side and the drain pipe 6 side; and a second switching valve 7b provided at the downstream side of the first switching valve 7a for switching between a hand washing channel leading from the first pipe 8b to a second pipe 8c at the side of the hand washing device 5 and a drain channel leading from the first pipe 8b to a third pipe 8d at the side of the drain pipe 6.

Description

  The present invention relates to a warm water washing apparatus that enables hand washing by supplying warm water used for local washing of a human body to a hand washing apparatus by changing a flow path.

  The structure shown by patent document 1 is disclosed about the conventional warm water washing | cleaning apparatus.

  In Patent Document 1, the water in the hot water tank is heated by a heater, and the generated hot water is discharged from the hot water to a local part of a human body by a water supply pump, and the upper surface of a water purification tank for storing toilet flushing water. The hot water is supplied to the nozzle and the hand-washing apparatus by switching the flow path using a switching valve. As a result, the hot water cleaning device not only discharges the hot water from the nozzle that cleans the local part of the human body, but also supplies the hot water to the hand washing device by switching the switching valve, so that the user can hold the hand with the hot water. It can be washed.

JP-A-10-88642

  The above-mentioned hot water washing apparatus does not have a mechanism for draining residual water remaining in the piping between the hot water tank and the hand washing apparatus after hand washing, so when a user performs hand washing, especially in winter, Residual water whose water temperature has decreased after the previous user's hand washing may be used for hand washing. In addition, if the hand-washing device is not located on the top surface of the washing tank but at a location other than the washing tank, the amount of residual water that accumulates in the piping will increase. There is a possibility to do.

  Therefore, the present invention provides a warm water washing apparatus that suppresses discomfort to the user by draining the remaining water of the pipe leading to the faucet of the hand washing apparatus during hand washing, and can perform hand washing with clean warm water. .

  Means taken to solve the above problems are a toilet body having a toilet seat, a hot water supply device that generates hot water by heating the supplied water, a local cleaning device that cleans the human body with hot water, and hot water In a warm water washing apparatus comprising a hand washing device that discharges water from a faucet, a drain pipe for draining the hot water discharged from the hand washing device and a downstream of the hot water supply device, the supply of hot water is supplied to the local washing device or the hand washing device. A first switching valve capable of switching, a second switching valve provided downstream of the first switching valve and disposed between the hand washing device and the drain pipe, and the first switching valve and the second switching valve. A first pipe for connecting, a second pipe for connecting the second switching valve and the hand washing device, and a third pipe for connecting the second switching valve and the drain pipe, and the first pipe and the second pipe via the second switching valve. The hand-washing channel connecting the two pipes, the first pipe and the third pipe A warm water washing device capable of performing switching between ingredients drainage passage.

  Further, the toilet body is provided with detection means for detecting the presence / absence of human seating, and the first switching valve is switched to the flow path on the local cleaning device side when seated by the signal of the detection means, and the first switching valve when not seated. And it is good also as a structure which can switch a 2nd switching valve to the flow path of the hand-washing apparatus side or a drain pipe side.

  In addition, the first pipe and the third pipe are connected by the second switching valve, and the remaining water in the first pipe is drained to the drain pipe by the water pressure of the supplied water.

  According to the present invention, the warm water cleaning device drains the remaining water in the pipe communicated from the first switching valve to the drain pipe by the second switching valve, thereby washing the hand after switching the second switching valve. Residual water discharged from the apparatus is suppressed, and the user can wash hands with warm water. In particular, in winter and the like, discomfort caused by washing with cold residual water can be suppressed. Furthermore, the conventional technology has a risk of impairing cleanliness because the drainage of the residual water in the pipe is drained to the hand washing device and the downstream hand washing pan, but this hot water washing device drains the residual water from the drain pipe. Therefore, since the user does not see the drainage operation, a clean feeling can be given. Moreover, this warm water washing | cleaning apparatus can also suppress generation | occurrence | production of a water splash by reducing excess drainage from a hand-washing apparatus.

  Furthermore, by switching the first switching valve or the second switching valve with the signal of the detection means, the drainage operation of the remaining water can be smoothed, the amount of warm water drainage can be reduced, and the user's transition to the hand washing operation is also uncomfortable. Can be suppressed.

  Moreover, since this hot water washing apparatus can drain the residual water of 1st piping to the drain pipe with the water pressure of the supplied water, it is not necessary to provide a pressure source such as a pump, and the apparatus can be simplified. is there.

The block diagram of the warm water washing | cleaning apparatus in the Example of this invention. Explanatory drawing of the water supply circuit of the warm water washing apparatus in the Example of this invention. The flowchart of the hand-washing operation | movement in the Example of this invention.

  Embodiments of the present invention will be described below.

  The whole structure of the warm water washing apparatus 1 concerning the Example of this invention is demonstrated using FIG. FIG. 1 shows a configuration diagram of the hot water cleaning apparatus 1.

  As shown in FIG. 1, a hot water cleaning apparatus 1 according to the present embodiment includes a toilet body 2, a hot water supply device 3 and a local cleaning device 4 provided in the toilet body 2, and a hand-washing device located away from the toilet body 2. 5, a drain pipe 6 that drains hot water after hand washing, a switching valve 7 that switches the flow path, and a pipe 8 that connects each of them.

  The toilet body 2 includes a toilet 2a, a toilet seat 2b on which a user is seated, and a cleaning tank 2c for toilet cleaning. Moreover, the hot water supply apparatus 3 heats the water supplied from the water supply pipe 8a to generate hot water. A first switching valve 7a is provided downstream of the hot water supply device 3. The first switching valve 7a has a flow path to the local cleaning device 4 for cleaning the local part and a flow to the hand washing device 5 (drain pipe 6). The road can be switched. Further, the first switching valve 7a is provided with a fourth pipe 8e and a fifth pipe 8f between the local washing device 4 and similarly with the hand washing device 5 provided with a first pipe 8b. Yes. Furthermore, the 1st piping 8b is provided with the 2nd switching valve 7b which switches the flow path to the hand-washing apparatus 5 and the drain pipe 6. FIG. The flow paths from the second switching valve 7b to the hand washing device 5 and the drain pipe 6 are connected by a second pipe 8c and a third pipe 8d, respectively. Further, an operation unit 11 having a local cleaning switch 11a for switching the local cleaning device 4 to the buttocks nozzle 4a and the bidet nozzle 4b by the first switching valve 7a is provided on the side 2d of the toilet body 2. . Control of the hot water supply device 3 and the switching valve of the hot water washing device 1 is performed by a control device 10 provided in the toilet body 2 and detection means 9 installed in each place. The detection means 9 includes a seating sensor 9a, a detection sensor 9b, and a temperature sensor 9c. The seating sensor 9a for detecting whether the user is seated is provided on the toilet seat 2b, and the user brings his hand close to the faucet 5a. The hand washing device 5 is provided with a detection sensor 9b that detects the user's hand. Further, a temperature sensor 9c is provided on the first pipe 8b adjacent to the second switching valve 7b.

  Next, a water supply circuit of the hot water cleaning apparatus 1 according to the embodiment of the present invention will be described with reference to FIG. FIG. 2 is an explanatory diagram of a water supply circuit of the hot water cleaning apparatus 1.

  The control device 10 of the hot water cleaning apparatus 1 receives a signal from the detection means 9 (the seating sensor 9a, the detection sensor 9b, the temperature sensor 9c) or the local cleaning switch 11a. Based on this signal, the control device 10 is configured to operate the switching valve 7 (first switching valve 7a, second switching valve 7b, water supply valve 7c) and the heater 3a.

  The water supplied from the water supply pipe 8a of the hot water cleaning apparatus 1 is sent to the hot water supply apparatus 3 or the cleaning tank 2c through the water supply valve 7c. The water supply valve 7c can switch the flow path to the hot water supply apparatus 3 or the flow path to the cleaning tank 2c by a signal from the control apparatus 10. Further, the hot water cleaning apparatus 1 generates hot water by heating water supplied by a heater 3 a provided in the hot water supply apparatus 3. The hot water generated by the hot water supply device 3 is switched by the control device 10 (the first switching valve 7a, the second switching valve 7b) and the piping 8 (first piping 8b, second piping 8c, third piping 8d). Then, the water is fed to the local cleaning device 4 (the buttocks nozzle 4a and the nozzle 4b), the drain pipe 6 or the hand-washing device 5 through the fourth pipe 8e and the fifth pipe 8f). And the warm water washing | cleaning apparatus 1 drains the residual water which the temperature which remained in the piping 8 fell at the same time as warm water supply.

  Next, the operation at the time of local cleaning will be described.

  The user can select the assault nozzle 4 a or the bidet nozzle 4 b of the local cleaning device 4 by operating the local cleaning switch 11 a provided in the operation unit 11. Upon receiving the signal from the local washing switch, the control device 10 opens the water supply valve 7c to the hot water supply device 3 side, starts water supply from the water supply pipe 8a, and supplies water to the hot water supply device 3. The hot water generated by the hot water supply device 3 receives a signal from the control device 10 and switches to the fourth pipe 8e that connects the first switching valve 7a to the buttocks nozzle 4a or the fifth pipe 8f that connects to the bidet nozzle 4b. The water is then sent to the user for local cleaning.

  Next, the operation at the time of hand washing including drainage of residual water will be described with reference to FIG. FIG. 3 shows a flowchart of the hand washing operation in the hot water washing apparatus 1. This flowchart is not limited to that shown in FIG. 3, but is merely an example.

  The control device 10 of the hot water cleaning device 1 of the present embodiment reads the signal of the seating sensor 9a after the local cleaning (step S101). Based on this signal, it is determined whether or not the user is seated on the toilet seat 2b (step S102). Step S103 and subsequent steps are not executed until the user leaves the toilet seat 2b. When it is determined that the user has moved away from the toilet seat 2b, the control device 10 opens the water supply valve 7c toward the hot water supply device 3, and water is supplied from the water supply pipe 8a to the hot water supply device 3 (step S103). The supplied water is heated to a temperature suitable for hand-washing by operating the heater 3a of the hot water supply device 3 (step S104). The hot water generated by the hot water supply device 3 is sent to the first pipe 8b when the first switching valve 7a is opened to the first pipe 8b side by the control device 10 (step S105). In order to drain the remaining water remaining in the first pipe 8b almost simultaneously with step S105, the warm water temporarily opens the second switching valve 7b toward the third pipe 8d, and the drain pipe 6 is supplied with the supplied water pressure. (Step S106). The first pipe 8b is provided with a temperature sensor 9c adjacent to the second switching valve 7b, and the controller 10 reads the signal of the temperature sensor 9c while hot water is being sent to the first pipe 8b (step S107). . The second switching valve 7b opens to the drain pipe 6 side where the temperature in the first pipe 8b detects a temperature suitable for hand washing (for example, 40 ° C.) by the temperature sensor 9c. Then, the control device 10 determines whether or not the temperature in the first pipe 8b is a suitable temperature based on the signal from the temperature sensor 9c (step S108). When the controller 10 determines that the suitable temperature in the first pipe 8b is suitable for hand washing, the second switching valve 7b is closed to the drain pipe 6 side (step S109). Then, the control apparatus 10 reads the signal of the detection sensor 9b which detects the user's hand attached to the hand-washing apparatus 5 (step S110). From this signal, the control device 10 determines whether or not the user's hand is approaching the hand washing device 5 (step S111). When it is determined that the user's hand is approaching the hand-washing device 5, the control device 10 opens the second switching valve 7 b to the second pipe 8 c on the hand-washing device 5 side, and the hot water is moved to the hand-washing device 5. And is discharged from the faucet 5a to the hand-washing dish 5b (step S112). While the user is washing their hands, the control device 10 reads the signal from the detection sensor 9b (step S113). From this signal, it is determined whether or not the user's hand is away from the hand washing device 5 (step S114). When it is determined that the user's hand is away from the hand washing device 5, the water supply valve 7c, the first switching valve 7a, and the second switching valve 7b are closed, and the heater 3a of the hot water supply device 3 is stopped. The hand washing operation ends. (Step S115). Thereby, since the warm water washing | cleaning apparatus 1 is only the residual water in the 2nd piping 8c, the discharge amount of the residual water discharged from the faucet 5a of the hand washing apparatus 5 is suppressed.

  As mentioned above, although the structure of the Example was demonstrated, this invention is not limited to this, You may change into the aspect shown below.

-The temperature sensor 9c close to the 2nd switching valve 7b of the 1st piping 8b does not need to be provided.

  Even when the temperature sensor 9c is not provided, the first switching valve 7b is opened for a predetermined time until warm water having a suitable temperature is supplied to the drain pipe 6 side. Since the inside of the pipe 8b can be filled with warm water having a suitable temperature, the user can wash hands with warm water.

As the draining operation, after the temperature sensor 9c detects that the temperature has been heated to a suitable temperature in the first pipe 8b and the second switching valve 7b is closed to the drain pipe 6 side, the user enters the hand washing device 5 The remaining water remaining in the second pipe 8c may be drained from the faucet 5a before being detected by the attached detection sensor 9b.

-The detection sensor 9b which detects a user does not need to be provided.

  The hot water cleaning apparatus 1 detects that the water in the pipe has been heated to a suitable temperature by the temperature sensor 9c, and the second switching valve 7b is closed to the drain pipe 6 and remains in the second pipe 8c. After draining the remaining water from the faucet 5a, it is possible to perform hand washing by continuously discharging hot water for a predetermined time.

-The 2nd switching valve 7b is good also as a structure switched to the flow path which connects the hand-washing apparatus 5 and the drain pipe 6. FIG.

  If the second switching valve 7b has a structure for switching so that the second pipe 8c of the hand washing device 5 and the third pipe 8d of the drain pipe 6 communicate with each other, the hot water cleaning device 1 includes the first pipe by the temperature sensor 9c. After detecting that the water in 8b has warmed to a suitable temperature and the second switching valve 7b is closed to the drain pipe 6, the opening operation is performed to connect the second pipe 8c and the third pipe 8d. By doing so, it becomes possible to drain the remaining water of the second pipe 8c. Thereby, when a user wash | cleans a hand, since residual water is not discharged from faucet 5a, it can wash with warm water with a clean feeling.

-In this warm water washing apparatus 1, you may provide the warm water lamp etc. for notifying whether the warm water which temperature sensor 9c has accumulated in piping 8 is suitable temperature.

  By providing the warm water lamp, the user can perform hand washing after confirming that the remaining water in the pipe 8 in the warm water washing apparatus 1 has been drained.

When the toilet 2a is washed between the steps S102 and S103 using the water in the washing tank 2c, the supply of water to the washing tank 2c through the water supply valve 7c is performed by the toilet 2a. It may be at the time of washing (between step S102 and step S103) or at the end of the hand washing operation. However, the cleaning of the toilet 2a and the supply of water to the cleaning tank 2c are not limited to these. However, it is necessary to supply water to the cleaning tank 2c before the next cleaning.

-The water (residual water or warm water) drained to the drain pipe 6 does not need to be limited to draining into the toilet 2a as shown in FIG.

DESCRIPTION OF SYMBOLS 1 Hot water washing apparatus 2 Toilet body 2a Toilet bowl 2b Toilet seat 3 Hot water supply apparatus 4 Local washing apparatus 5 Hand washing apparatus 5a Faucet 6 Drain pipe 7 Switching valve (7a 1st switching valve, 7b 2nd switching valve, 7c Water supply valve)
8 piping (8a water supply pipe, 8b first piping, 8c second piping, 8d third piping, 8e fourth piping, 8f fifth piping)
9 Detection means

Claims (3)

A toilet body having a toilet seat;
A hot water supply device that heats the supplied water to generate hot water;
A local cleaning device that cleans the human body with the warm water;
A hand washing device for discharging the warm water from the faucet;
In a hot water cleaning apparatus comprising:
A drain pipe for draining hot water discharged from the hand washing device;
A first switching valve provided on the downstream side of the hot water supply device, and capable of switching the supply of hot water to the local washing device or the hand washing device;
A second switching valve provided downstream of the first switching valve and disposed between the hand washing device and the drain pipe;
A first pipe connecting the first switching valve and the second switching valve;
A second pipe connecting the second switching valve and the hand washing device;
A third pipe connecting the second switching valve and the drain pipe;
It is possible to switch between a hand washing channel connecting the first pipe and the second pipe and a drain channel connecting the first pipe and the third pipe via the second switching valve. Hot water cleaning device.   Detection means for detecting whether or not a human body is seated on the toilet seat is provided, and the first switching valve is switched to the flow path on the local cleaning device side when seated by a signal of the detection means, and when not seated, the first switching valve The hot water cleaning apparatus according to claim 1, wherein the switching valve and the second switching valve can be switched to the flow path on the hand washing apparatus side or the drain pipe side. The said 1st piping and the said 3rd piping are connected by the said 2nd switching valve, The residual water in piping is drained to the said drain pipe with the water pressure of the supplied water. The hot water cleaning apparatus according to claim 1.

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