JP5793885B2 - Hand washing equipment - Google Patents

Description

  The present invention relates to a hand-washing apparatus that supplies hot water by instantaneous heating means and can wash hands with warm water.

  As for the conventional hand-washing device, a hand-washing device capable of discharging water by mixing hot water and water is disclosed in Patent Document 1, and a hand-washing device having a plurality of water outlets for discharging water according to the form of water discharge is disclosed in Patent Document 2. ing.

  The hand-washing apparatus of Patent Document 1 includes a mixing faucet that discharges hot water and water, a faucet body that can adjust the mixing ratio of hot water and water, a hot water supply pipe that supplies hot water to the faucet body, , A water supply pipe for supplying water, a hot water supply side solenoid valve for stopping hot water flowing in the hot water supply pipe, a water supply side solenoid valve for stopping water flowing in the water supply pipe, a human body detecting means for detecting a human body, and a human body detection And a control means for opening and closing the electromagnetic valve by the means. The control means of this hand-washing device is configured to open the water supply side solenoid valve when the human body detection means detects a human body, and then open the hot water supply side solenoid valve after the water supply side solenoid valve is opened for a certain period of time. It has become.

  Moreover, the hand-washing apparatus of patent document 2 is a spout which has two types of spout forms by the rectifier spout which can sprinkle water or the mixed water of water and hot water in a rectified state, and the water spray plate which can sprinkle shower water. And switching the water discharge form, selecting the switch adjacent to the water discharge port, switching part switching the water supply according to the water discharge form, and sending a signal to the switching part based on the signal from the selection part, matched the water discharge form And a control unit capable of discharging water from the water outlet. This hand-washing device does not provide switching of the water discharge form at the water discharge port, but by switching the piping and selecting the flow path to discharge water from the water discharge port, the tip portion provided with the water discharge port can be downsized. It is a possible configuration.

JP 2010-265701 A JP 2009-299326 A

  The above-described hand-washing device of Patent Document 1 is intended to provide mixed water by controlling a solenoid valve in order to prevent sudden hot water discharge. Therefore, since this hand washing device cannot change the water discharge flow rate according to the temperature of the mixed water, the amount of water discharged is constant even with a small amount of warm water or a sufficiently warm temperature. There is a possibility that the amount of water used for hand washing may be used more than necessary, which may increase energy consumption and cost.

  Moreover, the hand-washing apparatus of patent document 2 selects a water discharge form so that it may branch from piping and may supply water to a water discharge port instead of the water discharge port provided with the several water discharge form, The water discharge form is not selected according to the water discharge temperature. For this reason, the hand-washing device has a limited amount of hot water that can be generated when hot water is generated by heating means that instantaneously heats the water. You may not be able to wash your hands with warm water.

  Then, this invention provides the hand-washing apparatus which can perform an energy-saving and low-cost hand-washing by selecting the water discharge form with water discharge flow volume and water discharge temperature.

  Means taken in order to solve the above-mentioned problem is that the hand-washing device is provided around the instantaneous water heater for generating hot water from a water supply source for supplying water, and the first water outlet and the first water outlet with different water discharge flow rates. A water discharger having the second water discharge port, a switching unit that switches a plurality of water discharge forms, a first supply pipe that communicates the instantaneous hot water supply device and the switching unit, and a second supply pipe that communicates the water supply source and the switching unit The first water discharge pipe communicates with the first supply pipe via the first water discharge opening and the switching section, and the first water discharge pipe communicates with at least the second supply pipe via the second water discharge opening and the switching section. A second water discharge pipe capable of flowing a large flow rate with respect to the pipe, and the water discharge form includes a first water discharge form in which the first supply pipe and the first water discharge pipe communicate with each other, a second supply pipe, and a second water discharge pipe. Second water discharge form, first supply pipe, second supply pipe and second water discharge pipe communicating with each other The a configuration and a third jetting mode communicating.

  In addition, the switching unit may include a fixed unit connected to each supply pipe and each water discharge pipe, and a communication unit that switches the water discharge form by switching the pipe, and may include a rotating unit that is rotatable with respect to the fixed unit.

  Moreover, it is good to provide the human body detection sensor provided in the periphery of the water discharging part and detecting the human body which adjoins, and the control part which receives the signal of a human body detection sensor and operates an instantaneous hot water supply apparatus.

  A first electromagnetic valve disposed between the water supply source and the instantaneous hot water supply device; and a second electromagnetic valve disposed between the water supply source and the switching unit. The electromagnetic valve may be opened and closed by the control unit.

  According to the present invention, this hand-washing device has three types of water discharge: a first water discharge form for discharging only warm water, a second water discharge form for discharging only water, and a third water discharge form for discharging mixed water of warm water and water. It has a form. This 1st water discharge form differs from the 2nd water discharge form and the 3rd water discharge form, and the water discharge port and piping of a water discharge part, and since there are few discharge water flows compared with the 2nd water discharge form and the 3rd water discharge form, hand wash with a small amount of warm water Is possible. Furthermore, when a user requests | requires flow volume, a hand-washing apparatus can respond | correspond by using a 2nd water discharge form and a 3rd water discharge form, and temperature adjustment is also possible. For this reason, the hand-washing apparatus can efficiently use limited hot water by selecting the water discharge form according to the water discharge flow rate and the water discharge temperature, and suppresses power consumption because hot water is not generated more than necessary. be able to. Furthermore, since the water discharge flow rate can be adjusted according to the present invention, hand-washing suitable for the user's purpose of use is possible, so that an energy-saving hand-washing device can be provided.

  Moreover, this hand-washing apparatus can change a water discharge form by selecting the connection of each supply piping and each water discharge piping by rotating a communication part by a rotation part. For this reason, since a hand-washing apparatus can switch a water discharge form with a simple structure, it leads also to low cost.

  Moreover, this hand-washing apparatus can suppress the consumption of electric power because the instantaneous hot-water supply device can be hot-watered only at the time of hand-washing by operating the instantaneous hot-water supply device after detecting the human body by the human body detection sensor. .

  In addition, since each electromagnetic valve can be opened and closed by the control unit in this hand-washing device, water can be supplied only to the instantaneous hot water supply device or the like at the time of hand-washing, so that residual water remaining in the pipe can be suppressed.

It is a top view which shows the attachment position of the hand-washing apparatus concerning this invention. It is explanatory drawing explaining the hand-washing apparatus in the case of discharging hot water. It is explanatory drawing explaining the hand-washing apparatus in the case of discharging water. It is explanatory drawing explaining the hand-washing apparatus in the case of discharging the mixed water of warm water and water.

  Hereinafter, the structure of the hand-washing apparatus according to the present invention will be described with reference to FIGS. FIG. 1 is a plan view showing a mounting position of a hand washing apparatus according to the present invention, and FIG. 2 is an explanatory view for explaining the hand washing apparatus when hot water is discharged.

  As shown in FIG. 1, the hand-washing apparatus 1 is disposed, for example, in a space away from the toilet 2 in a space where the toilet 2 is provided. As shown in FIG. 2, the hand-washing apparatus 1 includes a water discharge unit 3 having a plurality of water discharge ports, a switching unit 4 that switches a plurality of water discharge modes, and a water discharge pipe 5 that communicates the water discharge unit 3 and the switching unit 4. . The switching unit 4 includes a hot water supply pipe (first supply pipe) 8 a to which hot water is supplied from an instantaneous hot water supply device 7 serving as an instantaneous heating means for generating hot water from water supplied by the water supply source 6, and a water supply source 6. And a water supply pipe (second supply pipe) 8b through which water is directly supplied. This hand-washing apparatus 1 is provided with a main pipe 9 having a branch portion 9a that supplies water from a water supply source 6 and branches into two flow paths. The branch portion 9a is provided with electromagnetic valves (solenoid valves) 10a and 10b that can be opened and closed, and one of the branch portions 9a of the main pipe 9 communicates with the instantaneous hot water supply device 7 via the first electromagnetic valve 10a. The other communicates with the water supply pipe 8b through the second electromagnetic valve 10b. The water discharger 3 is provided with a human body detection sensor 11 for detecting a human body. The human body detection sensor 11 detects a human body and transmits a signal. This transmitted signal is transmitted to the control unit 12 provided in the hand washing apparatus 1. The control unit 12 controls the instantaneous hot water supply device 7, the first electromagnetic valve 10a and the second electromagnetic valve 10b by a signal from the human body detection sensor 11, and the instantaneous hot water supply device 7 generates hot water, and each electromagnetic valve 10a. 10b is opened. When the human body detection sensor 11 no longer detects a human body, the hand-washing device 1 stops the instantaneous hot water supply device 7 according to the signal from the human body detection sensor 11 and closes the electromagnetic valves 10a and 10b.

(Regarding the relationship between the water discharge flow rate of the water discharge part 3, the water discharge pipes 5a and 5b, and the supply pipes 8a and 8b)
Moreover, the water discharge part 3 is provided with the two water discharge ports 3a and 3b of the 1st water discharge port 3a in which only warm water is discharged, and the 2nd water discharge port 3b in which only water or the mixed water of water and warm water is discharged. Yes. The water discharge pipe 5 that connects the water discharge unit 3 and the switching unit 4 is provided with a first water discharge pipe 5a that communicates with the first water discharge port 3a and a second water discharge pipe 5b that communicates with the second water discharge port 3b. . The first water discharge pipe 5a has a smaller flow rate than the second water discharge pipe 5b, and the water discharge pipes 3a and 3b communicating with the water discharge pipes 5a and 5b and the supply pipes 8a and 8b also have a first water discharge port 3a. The amount of water discharged is smaller than that of the second water discharge port 3b. Furthermore, the flow rate of the hot water supply pipe 8a supplied is smaller than that of the water supply pipe 8b. For example, the instantaneous water heater 7 used in this embodiment can heat 0.5 liters of water to be supplied from 5 ° C. to 40 ° C. per minute. For this reason, the amount of water discharged from the first outlet 3a is 0.5 liters per minute, and the amount of water discharged from the second outlet 3b is 1 liters per minute to 4 liters per minute. Is provided. Thereby, the water discharging part 3 comprises the water discharging part 3 and the water discharge piping 5 so that a sufficient water pressure can be secured with respect to the amount of hot water that can be generated by the instantaneous hot water supply device 7 particularly when only hot water is discharged.

(About the configuration of the switching unit 4)
The switching unit 4 includes a rotating unit 4b that is rotated by the operation lever 4a, and a fixing unit 4c that has a plurality of holes connected to the supply pipes 8a and 8b and the water discharge pipes 5a and 5b. The part 4b is rotatable so as to slide relative to the fixed part 4c. In addition, the switching unit 4 is provided in the rotating unit 4b, and the communication unit 4d that forms a space (for example, a concave shape) between the switching unit 4b and the water and / or hot water supplied from each supply pipe as it is. It is in a state or mixed structure. The fixing portion 4c includes a hot water inflow hole 4e that communicates with the hot water supply pipe 8a, a water side inflow hole 4f that communicates with the water supply pipe 8b, a first outflow hole 4g that communicates with the first water discharge pipe 5a, A second outlet hole 4h communicating with the two water discharge pipes 5b is provided. As for this switching part 4, a water discharge form is selected by the combination of each inflow / outlet hole provided in the fixed part 4c and the communication part 4d provided in the rotating part 4b, and the first water discharge form with only warm water and only water It is possible to switch to three water discharge forms, the second water discharge form and the third water discharge form of the mixed water of warm water and water. The switching unit 4 selects the water discharge pipe 5 connected to the first water discharge port 3a and the second water discharge port 3b of the water discharge unit 3 according to the three water discharge modes, so that the user can perform the intended cleaning. . In addition, the switching unit 4 is a non-communication part that is not a communication part 4d on the rotating part 4b side of the rotating part 4b and the fixed part 4c and the contact surface with water or hot water supplied from a supply pipe that is not used depending on the water discharge mode It is possible to stop with 4i.

  Next, the water discharge state and the switching structure of the hand-washing apparatus 1 according to the present invention will be described with reference to FIGS. FIG. 3 is an explanatory view for explaining the hand washing apparatus 1 when water is discharged, and FIG. 4 is an explanatory view for explaining the hand washing apparatus 1 when water mixed with warm water and water is discharged.

(Operation state of the first water discharge mode)
From FIG. 2, the first water discharge form is a water discharge form for discharging only warm water. The hand-washing device 1 detects the human body by the human body detection sensor 11 provided at the tip of the water discharge unit 3, so that the control unit 12 warms the instantaneous hot water supply device 7 and each electromagnetic valve based on a signal from the human body detection sensor 11. 10a and 10b are opened. The instantaneous hot water supply device 7 can generate warm water because the water is supplied from the water supply source 6 by opening the first electromagnetic valve 10a. Further, the water supplied from the water supply source 6 through the main pipe 9 flows into the water-side inlet hole 4f of the switching unit 4 through the water supply pipe 8b by opening the second electromagnetic valve 10b. The hot water generated by the instantaneous hot water supply device 7 passes through the hot water supply pipe 8a, and is connected to the rotating portion 4b of the switching unit 4 through the hot water side inflow hole 4e provided in the fixing unit 4c of the switching unit 4. Flows into 4d. The switching unit 4 in the first water discharge form communicates only the hot water side inflow hole 4e and the first outflow hole 4g by the communication part 4d of the rotating part 4b rotated by using the operation lever 4a, and is not the communication part 4d. The non-communication part 4i which is a part stops the water-side inflow hole 4f and closes the second outflow hole 4h. For this reason, the warm water is discharged from the first water outlet 3a of the water discharger 3 through the first outlet hole 4g and the first water discharge pipe 5a.

  The hot water discharged from the first water discharge port 3a is made to correspond to the flow rate at which the hot water supply device 7 can heat each pipe through which the hot water passes and the water discharge amount of the first water discharge port 3a, so that the water pressure can be reduced even at a small flow rate. Since it can be ensured sufficiently, the user can wash hands in a warm state even if the amount of hot water discharged is small.

(Operation state of the 2nd water discharge form)
From FIG. 3, the 2nd water discharge form is a water discharge form which discharges only water. The hand-washing device 1 detects the human body by the human body detection sensor 11 provided at the tip of the water discharge unit 3, so that the control unit 12 heats the instantaneous hot water supply device 7 according to a signal from the human body detection sensor 11 and each electromagnetic valve 10 a. 10b is opened. When the first electromagnetic valve 10a is opened, the hot water supplied from the water supply source 6 and generated by the instantaneous hot water supply device 7 passes through the hot water supply pipe 8a and is provided in the fixed portion 4c of the switching unit 4. It flows into the side inflow hole 4e. Further, the water supplied from the water supply source 6 through the main pipe 9 flows into the water-side inlet hole 4f of the switching unit 4 through the water supply pipe 8b by opening the second electromagnetic valve 10b. The switching unit 4 in the second water discharge mode communicates only the water-side inflow hole 4f and the second outflow hole 4h by the communication part 4d of the rotating part 4b, and stops the hot water-side inflow hole 4e by the non-communication part 4i. In addition, the first outflow hole 4g is closed. For this reason, the warm water is discharged from the second water discharge port 3b of the water discharge unit 3 through the second outlet hole 4h and the second water discharge pipe 5b.

  The water discharged from the second water outlet 3b is such that the amount of water discharged from each pipe through which the water passes and the second water outlet 3b is regulated by the pipe and the second water outlet 3b. The user can hand wash only water is discharged.

(Operating state of the 3rd water discharge form)
From FIG. 4, the 3rd water discharge form is a water discharge form which discharges the mixed water of warm water and water. The hand-washing device 1 detects the human body by the human body detection sensor 11 provided at the tip of the water discharge unit 3, so that the control unit 12 heats the instantaneous hot water supply device 7 according to a signal from the human body detection sensor 11 and each electromagnetic valve 10 a. 10b is opened. When the first electromagnetic valve 10a is opened, the hot water supplied from the water supply source 6 and generated by the instantaneous hot water supply device 7 passes through the hot water supply pipe 8a and is provided in the fixed portion 4c of the switching unit 4. It flows into the side inflow hole 4e. Further, the water supplied from the water supply source 6 through the main pipe 9 flows into the water-side inlet hole 4f of the switching unit 4 through the water supply pipe 8b by opening the second electromagnetic valve 10b. The switching unit 4 in the third water discharge form communicates the hot water side inflow hole 4e and the water side inflow hole 4f with the second outflow hole 4h by the communication part 4d of the rotating part 4b, and the first non-communication part 4i. The outflow hole 4g is blocked. For this reason, the mixed water mixed by the communication part 4d passes through the second outflow hole 4h, and is discharged from the second water discharge port 3b of the water discharge part 3 through the second water discharge pipe 5b.

  The mixed water discharged from the third water discharge port is, for example, warm water with different flow rates and each water pipe through which water flows and the water discharge amount of the second water discharge port 3b are, for example, the hot water side in the communication part 4d of the rotating part of the switching part 4 Since the inflow hole 4e and the water-side inflow hole 4f change in an area that is blocked at a place that is not the non-communication portion 4i, the temperature and flow rate of the mixed water change depending on the ratio of hot water to water. Therefore, the hand-washing apparatus 1 can discharge the mixed water discharged from the second water discharge port 3b in an adjustable manner according to the user's preference.

  This hand-washing device 1 has three water discharge forms: a first water discharge form for discharging only warm water, a second water discharge form for discharging only water, and a third water discharge form for discharging mixed water of warm water and water. Yes. This 1st water discharge form differs from the 2nd water discharge form and the 3rd water discharge form, and the water discharge port and piping of the water discharge part 3, and since there are few discharge water flows compared with the 2nd water discharge form and the 3rd water discharge form, with a small amount of warm water Hand washing becomes possible. Furthermore, when a user requests | requires flow volume, the hand-washing apparatus 1 can respond by using a 2nd water discharge form and a 3rd water discharge form, and temperature adjustment is also possible. For this reason, the hand-washing apparatus 1 can use limited hot water efficiently by selecting the water discharge form according to the water discharge flow rate and the water discharge temperature, and does not generate hot water more than necessary. Can be suppressed. Furthermore, since the water discharge flow rate can be adjusted according to the present invention, hand-washing suitable for the user's purpose of use is possible, so that the energy-saving hand-washing device 1 can be provided.

  This hand-washing apparatus 1 can switch the water discharge form by selecting the communication of each piping by rotating the communication part 4d by the rotation part 4b. For this reason, since the hand-washing apparatus 1 can switch a water discharge form with a simple structure, it leads also to low cost.

  This hand-washing apparatus 1 can suppress the consumption of electric power because the instantaneous hot water supply device 7 can be heated only during hand washing by operating the instantaneous hot water supply device 7 after detecting the human body by the human body detection sensor 11. It becomes.

  Since the electromagnetic valve 10a, 10b can be opened and closed by the control unit 12, the hand-washing device 1 can supply water only to the instantaneous hot water supply device 7 and the like during hand-washing, and can suppress residual water remaining in the pipe. .

  In addition, this invention is not limited to this embodiment, You may change into the aspect shown below.

The switching unit 4 of the present embodiment includes a fixed unit 4c in which water or hot water of each pipe provided in the fixed unit 4c is switched in the water discharge mode, a communication unit 4d provided in the rotating unit 4b, and a non-connected portion It is not limited to the structure which selects the water discharge form in relation to the communication part 4i. For example, if only the warm water is discharged from the first water outlet, and only the water and the mixed water of water and warm water are discharged from the second water outlet 3b, the switching unit 4 is fixed instead of the rotating unit 4b. The part 4c may include a communicating part 4d and may be configured to slide.

-The water discharge flow rate of this embodiment needs to be limited to a configuration in which the first water discharge port 3a is 0.5 liters per minute and the second water discharge port 3b is about 1 liter per minute to 4 liters per minute. Absent. The first water discharge port 3a sets the water discharge amount according to the amount of hot water that can be generated by the instantaneous water heater 7, and the second water discharge port 3b is a flow rate at which hot water is generated and a mixed water of this hot water and water. It is set in view of the relationship with the discharged water flow rate set by.

-You may comprise the hand-washing apparatus 1 of this embodiment using the instant hot water supply apparatus etc. which were provided in the water supply source (not shown) provided in the toilet 2, the local washing | cleaning apparatus (not shown). Moreover, this invention is not limited to the hand-washing apparatus 1 in the toilet 2 space.

-The hand-washing apparatus 1 of this embodiment determines the water discharge form in the control part 12, and closes the 2nd electromagnetic valve 10b in a 1st water discharge form, and stops the water supplied from the water supply source 6, In the second water discharge mode, the instantaneous hot water supply device 7 is stopped, the first electromagnetic valve 10a is closed, and the water supplied from the water supply source 6 is stopped, thereby suppressing the use of excess power and water. it can.

DESCRIPTION OF SYMBOLS 1 Hand-washing device 3 Water discharge part 3a 1st water discharge port 3b 2nd water discharge port 4 Switching part 4b Rotation part 4c Fixed part 4d Communication part 5a 1st water discharge pipe 5b 2nd water discharge pipe 6 Water supply source 7 Instantaneous hot water supply apparatus 8a Hot water supply pipe ( First supply pipe)
8b Water supply pipe (second supply pipe)
10a First solenoid valve (first solenoid valve)
10b Second solenoid valve (second solenoid valve)
11 Human Body Detection Sensor 12 Control Unit

Claims (4)

An instantaneous hot water supply device for generating hot water from a water supply source for supplying water;
A water discharger having a first water discharge port having a different water discharge flow rate and a second water discharge port provided around the first water discharge port;
A switching unit for switching a plurality of water discharge forms;
A first supply pipe communicating the instantaneous hot water supply device and the switching unit;
A second supply pipe communicating the water supply source and the switching unit;
A first water discharge pipe communicating with the first supply pipe via the first water discharge port and the switching unit;
Via the switching unit and the second water outlet, at least it communicates with the second supply pipe, and a second water pipe that flowed much flow to the first water pipe,
The water discharge form is
A first water discharge form communicating the first supply pipe and the first water discharge pipe;
A second water discharge form for communicating the second supply pipe and the second water discharge pipe;
The hand-washing apparatus which has a 3rd water discharge form which connects the said 1st supply piping and the said 2nd supply piping, and the said 2nd water discharge piping.   The switching unit includes a fixing unit connected to each supply pipe and each water discharge pipe, and a communication unit that switches a water discharge mode by pipe switching, and a rotation unit that is rotatable with respect to the fixing unit. The hand-washing device described. A human body detection sensor that is provided around the water discharger and detects a nearby human body,
The hand-washing apparatus according to claim 1, further comprising a control unit that receives a signal from the human body detection sensor and activates the instantaneous hot water supply apparatus. A first solenoid valve disposed between the water supply source and the instantaneous water heater;
A second electromagnetic valve disposed between the water supply source and the switching unit,
The hand washing apparatus according to claim 3, wherein the first electromagnetic valve and the second electromagnetic valve are opened and closed by the control unit.

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