Water discharge pipe, control device, and hand washing system

Abstract

To provide a user-friendly water discharge pipe, a control device, and a hand-washing system.SOLUTION: The water discharge pipe 10 includes a water discharge port 10D for discharging water, and a discharge port 10E for discharging liquid soap different from water.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a water outlet pipe, a control device, and a hand washing system. [Background technology]

[0002] Patent Document 1 discloses a hand washing device that can discharge water and cleaning liquid into a water receiving section. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-315682 Summary of the Invention [Problem to be solved by the invention]

[0004] In the device of Patent Document 1, the cleaning liquid discharge port and the water discharge port are located at separate positions within the water receiving portion. This prevents the cleaning liquid from being discharged while water is being discharged from the water discharge port. On the other hand, the device of Patent Document 1 requires the user to move their hand back and forth between the front of the water discharge port and the front of the cleaning liquid discharge port, which may be troublesome for the user.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide an easy-to-use water outlet pipe, control device, and hand washing system. [Means for solving the problem]

[0006] The water discharge pipe of the first disclosure includes a water discharge port that discharges water, and a discharge port that discharges a liquid other than water.

[0007] The control device of the second disclosure includes a control unit that controls the discharge of water from the water outlet of the water outlet pipe of the first disclosure and the discharge of the liquid from the outlet, a first sensor that detects that an object has entered a specified area, and a second sensor that detects that the object has entered another area different from the specified area.

[0008] The control device of the third disclosure includes a control unit that controls the discharge of water from the water outlet of the water discharge pipe of the first disclosure and the discharge of the liquid from the discharge outlet, a sensor that detects the entry of an object into a specified area, and a switch that is provided on a surface different from the surface on which the water outlet and the discharge outlet are provided and that outputs an operation detection signal indicating that the switch has been operated when operated.

[0009] The hand washing system of the fourth disclosure comprises the water discharge pipe of the first disclosure and the control device of the second disclosure.

[0010] The hand washing system of the fifth disclosure comprises the water discharge pipe of the first disclosure and the control device of the third disclosure. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a side cross-sectional view showing a hand washing basin equipped with a water discharge pipe (having a water discharge outlet and a discharge outlet for discharging foamy liquid soap (a liquid other than water)) of embodiment 1. FIG. [Figure 2] 1 is an enlarged bottom view of the main part of the projecting end portion of the discharge pipe of the first embodiment, as viewed from below. FIG. [Figure 3] 1 is a partial side cross-sectional view showing a state in which a hand is inserted into a predetermined area and another area of ​​the water discharge pipe of the first embodiment. FIG. [Figure 4] This is a partial side view showing, in superimposition, water being ejected from the water outlet toward a hand that has been inserted into a specified area of ​​the water outlet pipe of embodiment 1, and foamy liquid soap being ejected from the outlet. [Figure 5] 4 is a flowchart showing an example of control in a control unit of the first embodiment. [Figure 6]4 is a time chart showing an example of the operation of the control unit in the first and second embodiments. [Figure 7] 10 is a time chart showing an example of an operation of switching between a water discharge standby state and a discharge standby state in the control unit of the first and second embodiments. [Figure 8] 4 is a time chart showing an example of the operation when an initialization condition is met in the control unit of the first and second embodiments. [Figure 9] FIG. 10 is a side cross-sectional view showing a hand washing basin to which a water discharge pipe of embodiment 2 is attached. [Figure 10] 10 is a time chart showing an example of the operation of the control unit of the third embodiment. [Figure 11] FIG. 10 is an enlarged bottom view of a main part of a water discharge pipe according to another embodiment, showing a state in which the water discharge port is positioned closer to the protruding end than the discharge port. [Figure 12] FIG. 10 is an enlarged bottom view of a main part of a water discharge pipe according to another embodiment, showing a state in which the discharge port is positioned closer to the protruding end than the water discharge port. [Figure 13] FIG. 10 is an enlarged bottom view of a main part of a water discharge pipe according to another embodiment, showing a state in which the water discharge port and the discharge port are arranged side by side in the horizontal direction. [Figure 14] 14 is an enlarged bottom view of a main portion of a water discharge pipe according to another embodiment, in which the water discharge port and the discharge port are arranged side by side in the horizontal direction, opposite to that in FIG. 13. FIG. [Figure 15] This is a partial side view showing, in superimposition, water being discharged from the water outlet toward a hand that has been inserted into a specified area of ​​the water discharge pipe shown in Figure 11, and foamy liquid soap being discharged from the outlet. [Figure 16] FIG. 10 is an enlarged bottom view of the main part of the protruding end portion of the water discharge pipe of another embodiment, as viewed from below. [Figure 17] FIG. 10 is a side cross-sectional view of a water discharge pipe according to another embodiment, showing a state in which the base end of the water discharge pipe body is attached to a wall surface. [Figure 18] FIG. 10 is a side cross-sectional view of a water discharge pipe according to another embodiment, showing the base end of the water discharge pipe body attached to the lower end of a protruding portion that protrudes from a wall surface. DETAILED DESCRIPTION OF THE INVENTION

[0012] <Embodiment 1> A first embodiment of a water discharge pipe according to the present disclosure will be described with reference to the drawings. In the following description, the front-rear direction and the up-down direction of the water discharge pipe 10 are defined as the directions seen by a user of the water discharge pipe 10. The X-axis and Z-axis shown in each drawing represent the front-rear direction and the up-down direction, respectively. The positive directions of the X-axis and Z-axis are defined as the front and the up, respectively.

[0013] As shown in Fig. 1, hand-washing system 70 of embodiment 1 includes a water discharge pipe 10 and a control device 10U. Hand-washing system 70 is attached to hand-washing basin 100. For example, hand-washing basin 100 is attached to counter C provided in toilet room R.

[0014] The water discharge pipe 10 has a water discharge pipe main body 10A, a water discharge passage 10B, a discharge passage 10C, a discharge port 10E, and a water discharge port 10D. The control device 10U has a first sensor 10F, a second sensor 10G, and a control unit 10M.

[0015] [Outlet pipe configuration] The water discharge pipe body 10A is made of, for example, metal and is formed as a curved tube. The water discharge pipe body 10A rises from the top surface of the hand washing basin 100 and is positioned so that its protruding end extends above the center of the front-to-rear direction of the hand washing basin 100. One end of the water discharge pipe body 10A, the base end, is open, and the other end, the protruding end, is closed.

[0016] The water discharge passage 10B is inserted into the water discharge pipe main body 10A. An electromagnetic valve 10Q is connected to one end of the water discharge passage 10B that is drawn out from the water discharge pipe main body 10A. A stop valve (not shown) through which water is supplied from the water supply main pipe is connected to the electromagnetic valve 10Q.

[0017] The discharge passage 10C is inserted into the discharge pipe main body 10A. A pump 10J is connected to one end of the discharge passage 10C extending from the discharge pipe main body 10A. A known non-self-priming gear pump may be used as the pump 10J. Alternatively, a known self-priming gear pump may be used as the pump 10J. The pump 10J has an inlet port 10K and an outlet port 10L. The inlet port 10K of the pump 10J is connected via a connecting pipe 10P to an outlet 10N of a storage section 10H that stores liquid soap. The storage section 10H has an inlet (not shown) through which the liquid soap flows. The storage section 10H receives and stores the liquid soap from the inlet, and then discharges the stored liquid soap from the outlet 10N. One end of the discharge passage 10C is connected to the outlet port 10L of the pump 10J.

[0018] One end of an air supply path 10S is connected to the middle (intermediate portion) of the discharge path 10C. The other end of the air supply path 10S is connected to an outlet port 10T of an air pump 10R. The air pump 10R is, for example, a known diaphragm pump. The air pump 10R pumps compressed air toward the intermediate portion of the discharge path 10C and supplies the compressed air to the discharge path 10C. As a result, the liquid soap and air mix to form foamy liquid soap in the discharge path 10C downstream of the position where one end of the air supply path 10S is connected.

[0019] Discharge port 10E is the other end of discharge path 10C, and is provided so as to open into the downward-facing side surface of the projecting end of water discharge pipe main body 10A.

[0020] The water outlet 10D is the other end of the water discharge passage 10B, and is provided as an opening on the downward-facing side surface of the protruding end of the water discharge pipe main body 10A. As shown in Figure 2, when the downward-facing side surface of the protruding end of the water discharge pipe main body 10A is viewed from below, the water outlet 10D is formed in a circular ring shape so as to surround the periphery of the discharge outlet 10E. The discharge outlet 10E is arranged at the center of the water discharge outlet 10D. In other words, the water outlet 10D and the discharge outlet 10E are arranged coaxially. The water discharged from the water discharge outlet 10D flows down as a cylindrical water film.

[0021] Foamy liquid soap has a higher viscosity than non-foamy liquid soap, making it difficult to eject it from a slit like outlet 10D. For this reason, it is preferable to eject foamy liquid soap from a round hole like outlet 10E. In contrast, water has a lower viscosity than foamy liquid soap, so it can easily pass through a slit like outlet 10D. For this reason, outlet 10E, which is a round hole that ejects foamy liquid soap and has restrictions on the shape of the outlet, is placed in the center, and outlets 10D that eject water are arranged around it.

[0022] [Control device configuration] The first sensor 10F is provided on the downward-facing side surface of the protruding end of the water discharge pipe main body 10A, and is exposed downward toward the protruding end beyond the water discharge port 10D and the discharge port 10E. For example, a known infrared sensor is used as the first sensor 10F. As shown in FIG. 3, the first sensor 10F has the function of detecting that a target object, a user's hand H1 or hand H2 (hereinafter simply referred to as hand H1 or hand H2), has been placed in a predetermined area Rt below the downward-facing side surface of the protruding end of the water discharge pipe main body 10A. While FIG. 3 shows hand H1 held out in the predetermined area Rt, hand H2 may be held out in place of hand H1, or hand H1 and hand H2 may be held out in the predetermined area Rt at the same time. Specifically, the first sensor 10F continues to output the predetermined area detection signal St while the hand H1 or hand H2 is held out in the predetermined area Rt, and stops outputting the predetermined area detection signal St when the hand H1 or hand H2 leaves the predetermined area Rt.

[0023] The water outlet 10D and the discharge outlet 10E are positioned so that the water discharged from the water outlet 10D and the liquid soap discharged from the discharge outlet 10E hit the receiving area Rr of the hand H1 held out to the specified area Rt (see Figure 4).

[0024] The second sensor 10G is provided so as to be exposed on the forward-facing protruding end surface of the water discharge pipe main body 10A. Similar to the first sensor 10F, a known infrared sensor is used for the second sensor 10G. The second sensor 10G has the function of detecting the placement of a hand H1 or hand H2 in a separate area Ro, which is an area in front of the water discharge pipe main body 10A and different from the predetermined area Rt (see FIG. 1). While FIG. 3 shows a state in which hand H2 is presented in the separate area Ro, hand H1 may be presented in the separate area Ro instead of hand H2, or both hands H1 and H2 may be presented in the separate area Ro at the same time. The second sensor 10G continues to output a separate area detection signal So while hand H1 or hand H2 is presented in the separate area Ro, and stops outputting the separate area detection signal So when hand H1 and hand H2 leave the separate area Ro. The second sensor 10G is positioned so that the separate area Ro does not overlap with the predetermined area Rt. This prevents the first sensor 10F and the second sensor 10G from interfering with each other, making it easier for each of the first sensor 10F and the second sensor 10G to independently and correctly output the specified area detection signal St and the separate area detection signal So.

[0025] The control unit 10M is configured, for example, by mounting a CPU, memory, etc. on a circuit board. As shown in Fig. 1, the control unit 10M receives a predetermined area detection signal St from the first sensor 10F and a separate area detection signal So from the second sensor 10G. Based on the predetermined area detection signal St and the separate area detection signal So, the control unit 10M controls the discharge of water from the water outlet 10D and the discharge of foamy liquid soap from the outlet 10E.

[0026] Power is supplied to the control unit 10M from an AC power supply (not shown). For example, a power plug P attached to the tip of an electric wire Wi extending from the control unit 10M is inserted into an outlet (not shown) attached to a wall W of the toilet room R. When the power plug P is inserted into the outlet, the control unit 10M is supplied with power from the AC power supply, starts up, and begins controlling the solenoid valve 10Q, the pump 10J, and the air pump 10R. When the power plug P is removed from the outlet, the supply of power from the AC power supply to the control unit 10M is stopped, and the control unit 10M stops controlling the solenoid valve 10Q, the pump 10J, and the air pump 10R.

[0027] [About the operation of the control unit] Next, an example of the operation of the control unit 10M will be described. First, when the power plug P is inserted into an outlet (not shown) for the first time, the control unit 10M enters a water discharge standby state. The water discharge standby state is the initial setting state of the control unit 10M. For example, whether the control unit 10M is in a water discharge standby state or a discharge standby state is determined by setting an area (hereinafter simply referred to as a status flag) in part of the RAM provided in the control unit 10M that indicates whether the control unit 10M is in a water discharge standby state or a discharge standby state. The control unit 10M determines that the control unit 10M is in a water discharge standby state when the status flag is set to 0, and determines that the control unit 10M is in a discharge standby state when the status flag is set to 1.

[0028] In the water discharge standby state, when the predetermined range detection signal St is input from the first sensor 10F, the control unit 10M outputs a valve open signal Sop to the solenoid valve 10Q, opening the solenoid valve 10Q. As a result, the water discharge pipe 10 starts to discharge water from the water discharge port 10D. In the water discharge standby state, when the predetermined range detection signal St is no longer input from the first sensor 10F, the control unit 10M stops outputting the valve open signal Sop and closes the solenoid valve 10Q. As a result, the water discharge pipe 10 stops discharging water from the water discharge port 10D. In other words, the water discharge standby state is a state in which the control unit 10M is waiting to discharge water.

[0029] When the state switches from a state in which the other-area detection signal So is not input from the second sensor 10G to a state in which it is input while the control unit 10M is in the water-discharge standby state (the state flag is set to 0), the control unit 10M switches from the water-discharge standby state to the discharge-standby state. Specifically, when the state switches from a state in which the other-area detection signal So is not input from the second sensor 10G to a state in which it is input while the control unit 10M is in the water-discharge standby state, the control unit 10M switches the state flag from 0 to 1.

[0030] In the discharge standby state, when the control unit 10M receives a predetermined range detection signal St from the first sensor 10F, it outputs an operation signal Smo to the pump 10J and the air pump 10R for a predetermined time, starting the operation of the pump 10J and the air pump 10R. After the predetermined time has elapsed, it stops outputting the operation signal Smo, stopping the operation of the pump 10J and the air pump 10R. As a result, the water discharge pipe 10 discharges foamy liquid soap from the discharge port 10E for a predetermined time. For example, the control unit 10M outputs the operation signal Smo for a predetermined time, i.e., two seconds, and then stops outputting the operation signal Smo. As a result, the pump 10J and the air pump 10R operate for two seconds and then stop operating. For example, the predetermined time, i.e., two seconds, is measured using a timer function of the control unit 10M. In this way, the water discharge pipe 10 discharges foamy liquid soap from the discharge port 10E for two seconds. In other words, the discharge standby state is a state in which the water discharge pipe 10 waits to discharge liquid soap.

[0031] The control unit 10M has an area (hereinafter simply referred to as a discharged flag) in a portion of the RAM in the control unit 10M that indicates whether the operation signal Smo has been output once (i.e., whether the foamy liquid soap has been discharged once). For example, the control unit 10M switches the discharged flag from 0 to 1 based on the fact that the output of the operation signal Smo has been stopped after the control unit 10M started outputting the operation signal Smo. When the discharged flag is 1, the control unit 10M does not output the operation signal Smo even if the predetermined area detection signal St is input from the first sensor 10F. In other words, in the case of the first embodiment, the control unit 10M does not output the operation signal Smo two or more times in succession.

[0032] For example, when the control unit 10M is in a discharge standby state (the status flag is set to 1), and the condition satisfaction time has elapsed since the time the status flag was switched from 0 to 1, the control unit 10M determines that the initialization condition has been satisfied and switches from the discharge standby state to the water discharge standby state. Specifically, the control unit 10M initializes the status flag from 1 to 0 after the condition satisfaction time has elapsed. For example, the condition satisfaction time may be measured using a timer function possessed by the control unit 10M. Alternatively, the condition satisfaction time may be measured from the time when neither the predetermined area detection signal St nor the separate area detection signal So is input. In this case, a configuration is conceivable in which the measurement of the condition satisfaction time is reset when either the predetermined area detection signal St or the separate area detection signal So is input before the condition satisfaction time has elapsed.

[0033] The condition fulfillment time is the time for resetting the discharge standby state to the water discharge standby state if the hand H1 or H2 is not presented in the specified area Rt for a certain period of time after the discharge standby state is entered by presenting the hand H1 or H2 in another area Ro, in which the device is waiting for the discharge of foamy liquid soap. Considering that the user may leave the area without switching to the water discharge standby state after the discharge standby state is entered by presenting the hand H1 or H2 in another area Ro, it is preferable to set the condition fulfillment time to around 10 to 30 seconds in order to prevent foamy liquid soap from being suddenly dispensed when the next user presents their hand in the specified area Rt.

[0034] Next, an example of the operation of the control unit 10M will be described with reference to Fig. 5. The flowchart of Fig. 5 is repeatedly executed at predetermined intervals by, for example, the CPU of the control unit 10M.

[0035] First, in step S1, the control unit 10M determines whether the device is in a water discharge standby state. Specifically, the control unit 10M determines whether the status flag is set to 0. If the control unit 10M determines in step S1 that the device is in a water discharge standby state (Yes in step S1), the control unit 10M proceeds to step S2, where it determines whether input of the separate area detection signal So has started. Specifically, in step S2, the control unit 10M determines whether the state has changed from a state in which the separate area detection signal So is not input to a state in which it is input. For example, the control unit 10M is configured to store the input state of the separate area detection signal So when the flow chart shown in FIG. 5 was previously executed (hereinafter also referred to as the previous input state). The control unit 10M compares the previous input state with the input state of the separate area detection signal So when the flow chart shown in FIG. 5 is currently executed. If the control unit 10M determines in step S2 that the state in which the separate area detection signal So is not input has not changed from a state in which the separate area detection signal So is not input to a state in which it is input (No in step S2), the control unit 10M proceeds to step S3.

[0036] When the process proceeds to step S3, the control unit 10M determines whether or not the predetermined range detection signal St has been input. Specifically, in step S3, the control unit 10M determines the input state of the predetermined range detection signal St when the flow chart shown in FIG. 5 is currently executed. When the control unit 10M determines in step S3 that the predetermined range detection signal St has been input (Yes in step S3), the process proceeds to step S4, where the control unit 10M outputs a valve-open signal Sop to the solenoid valve 10Q, terminates the process shown in FIG. 5, and repeats the process shown in FIG. 5 again. When the control unit 10M determines in step S3 that the predetermined range detection signal St has not been input (No in step S3), the process proceeds to step S5, where the control unit 10M stops outputting the valve-open signal Sop to the solenoid valve 10Q, terminates the process shown in FIG. 5, and repeats the process shown in FIG. 5 again.

[0037] In step S2, when the control unit 10M determines that the state has changed from one in which the other area detection signal So has not been input to one in which it has been input (Yes in step S2), it proceeds to step S6, changes from the water discharge standby state to the discharge standby state (i.e., changes the state flag from 0 to 1), executes step S5, ends the processing shown in Figure 5, and repeats the processing shown in Figure 5 again.

[0038] In step S1, when the control unit 10M determines that the device is not in a water discharge standby state (No in step S1), the control unit 10M proceeds to step S7. For example, the status flag can only take on the value of either 0 or 1. Therefore, No in step S1 indicates that the status flag is set to 1, i.e., the device is in a discharge standby state.

[0039] When the process proceeds to step S7, the control unit 10M determines whether the initialization condition is met. The initialization condition is met when a time period for which the condition is met has elapsed, starting from the time when the status flag was switched from 0 to 1 in the discharge standby state. When the control unit 10M determines in step S7 that the initialization condition is not met (No in step S7), the process proceeds to step S8. When the control unit 10M determines in step S7 that the initialization condition is met (Yes in step S7), the process proceeds to step S15. When the process proceeds to step S13, the control unit 10M switches from the discharge standby state to the water discharge standby state (i.e., initializes the status flag from 1 to 0), and then proceeds to step S16 to switch the discharged flag to 0, after which the process shown in FIG. 5 is terminated and the process shown in FIG. 5 is repeated again.

[0040] In step S8, the control unit 10M determines whether the other area detection signal So has been switched to being input. Specifically, in step S8, the control unit 10M determines whether the other area detection signal So has been switched from not being input to being input, in the same manner as in step S2.

[0041] In step S8, if the control unit 10M determines that the state has not changed from when the other area detection signal So is not input to when it is input (No in step S8), the process proceeds to step S9.

[0042] In step S9, the control unit 10M determines whether the pump 10J and the air pump 10R have been operated once since switching to the discharge standby state. Specifically, the control unit 10M determines whether the discharge completion flag is 1. In step S9, if the control unit 10M determines that the pump 10J and the air pump 10R have not been operated once since switching to the discharge standby state (No in step S9), the control unit 10M proceeds to step S10.

[0043] When the process proceeds to step S10, the control unit 10M determines whether or not the predetermined area detection signal St has been input. If the control unit 10M determines in step S10 that the predetermined area detection signal St has been input (Yes in step S10), the process proceeds to step S11. If the control unit 10M determines in step S10 that the predetermined area detection signal St has not been input (No in step S10), the process shown in Fig. 5 ends, and the process shown in Fig. 5 is repeated again.

[0044] In step S11, control unit 10M outputs operation signal Smo to pump 10J and air pump 10R for two seconds, operates pump 10J and air pump 10R simultaneously for two seconds, and then stops pump 10J and air pump 10R. In step S12, control unit 10M changes the discharge completion flag from 0 to 1, ends the process shown in Fig. 5, and repeats the process shown in Fig. 5 again.

[0045] In step S9, if the control unit 10M determines that the pump 10J and the air pump 10R have been operated once (Yes in step S9), the process proceeds to step S14. In step S14, the control unit 10M determines whether or not a predetermined area detection signal St has been input. In step S14, if the control unit 10M determines that a predetermined area detection signal St has not been input (No in step S14), the process proceeds to step S15. In step S15, the control unit 10M switches from the discharge standby state to the water discharge standby state, sets the discharged flag to 0 (step S16), ends the process shown in FIG. 5, and repeats the process shown in FIG. 5 again. In step S14, if the control unit 10M determines that a predetermined area detection signal St has been input (Yes in step S14), the process proceeds to step S15.

[0046] In step S8, if the control unit 10M determines that the state has changed from one in which the other area detection signal So has not been input to one in which it has been input (Yes in step S8), the process proceeds to step S13. In step S13, the control unit 10M determines whether the predetermined area detection signal St has been input. In step S13, if the control unit 10M determines that the predetermined area detection signal St has not been input (No in step S13), the process proceeds to step S15. In step S13, if the control unit 10M determines that the predetermined area detection signal St has been input (Yes in step S13), the process proceeds to step S11.

[0047] Next, with reference to FIGS. 6, 7, and 8, an example of the operation of the control unit 10M based on the user's actions will be described. First, as shown in FIG. 6, at time T0, the control unit 10M is in a water discharge standby state (a state in which the status flag is set to 0) (Yes in step S1). Then, at time T1, the user holds out hand H1 or hand H2 to the predetermined area Rt (see FIG. 3). At time T1, the first sensor 10F detects that hand H1 or hand H2 has entered the predetermined area Rt and begins outputting a predetermined area detection signal St to the control unit 10M. When the input of the predetermined area detection signal St begins in the water discharge standby state (Yes in step S3), the control unit 10M outputs a valve open signal Sop to the solenoid valve 10Q, opening the solenoid valve 10Q (step S4). This starts water discharge from the water discharge port 10D, and the user rubs their hands H1 and H2 together to evenly wet their hands H1 and H2.

[0048] While hands H1 and H2 are held out in the predetermined area Rt, the first sensor 10F continues to output the predetermined area detection signal St, and the control unit 10M continues to output the valve opening signal Sop to the solenoid valve 10Q in response to the input of the predetermined area detection signal St.

[0049] At time T2, when hands H1 and H2 are evenly wet, the user holds out either hand H1 or hand H2 in another area Ro, which is different from the predetermined area Rt, while keeping either hand H1 or hand H2 in the predetermined area Rt (see FIG. 3). At time T2, when second sensor 10G detects that the other of the user's hands H1 and H2 has entered the other area Ro, it outputs a different area detection signal So to control unit 10M. Based on the fact that the other area detection signal So has switched from a non-input state to an input state at time T2 (Yes in step S2), control unit 10M switches the state flag from 0 to 1, thereby switching from the water discharge standby state to the discharge standby state (step S6). Then, at time T2, control unit 10M stops outputting a valve open signal Sop to solenoid valve 10Q and closes solenoid valve 10Q (step S5). As a result, at time T2, the water discharge pipe 10 stops discharging water from the water discharge port 10D.

[0050] At time T2 when the state is switched to the discharge standby state, the predetermined region detection signal St continues to be input to the control unit 10M (Yes in step S10). Then, at time T2, the control unit 10M starts outputting the operation signal Smo to each of the pump 10J and the air pump 10R, and after two seconds have elapsed, stops outputting the operation signal Smo (step S11). As a result, the pump 10J and the air pump 10R operate for two seconds, and foamy liquid soap is discharged from the discharge port 10E for two seconds. At time T2, the water discharge pipe 10 seamlessly switches from a state in which water is discharged from the water discharge port 10D to a state in which foamy liquid soap is discharged from the discharge port 10E. Based on the fact that the output of the operation signal Smo has been stopped, the control unit 10M sets the discharged flag from 0 to 1 (step S12).

[0051] After the discharged flag is set to 1 (Yes in step S9, meaning that the pump 10J and the air pump 10R have been operated once), even if the hand H1 or hand H2 continues to be held out in the predetermined area Rt (Yes in step S14), the control unit 10M does not output either the operation signal Smo or the valve-opening signal Sop. This allows the user to wash the hands H1 and H2 with the foamy liquid soap without the foamy liquid soap dispensed onto the hands H1 and H2 being accidentally washed away.

[0052] For example, if a user wants to add more foamy liquid soap, at time T3, the user holds out either hand H1 or hand H2 in the predetermined area Rt while again holding out the other of hand H1 or hand H2 in a different area Ro (step S8: Yes and step S13: Yes) (see FIG. 3). Then, at time T3, the control unit 10M outputs the operation signal Smo to the pump 10J and the air pump 10R again, and after two seconds have elapsed, stops outputting the operation signal Smo (step S11). This causes the control unit 10M to dispense additional foamy liquid soap onto either hand H1 or hand H2 held out in the predetermined area Rt for two seconds. This allows the user to thoroughly wash both hands H1 and H2 with the foamy liquid soap. After time T3 and before the device switches to the water discharge standby state, the user can repeatedly add more foamy liquid soap by repeating the same operation as at time T3.

[0053] At time T4, the user thoroughly washes hands H1 and H2 with foamy liquid soap and then removes both hands H1 and H2 from the predetermined area Rt. Specifically, with the discharged flag set to 1 (Yes in step S9), the input of the predetermined area detection signal St to control unit 10M stops (No in step S14). Then, control unit 10M sets the status flag from 1 to 0 and switches from the discharge standby state to the water discharge standby state (step S15). At the same time, control unit 10M initializes the discharged flag from 1 to 0 (step S16).

[0054] At time T5, the user again holds out hands H1 and H2 with foamy liquid soap attached to the predetermined area Rt. When the predetermined area detection signal St is input to control unit 10M in the water discharge standby state (Yes in step S3), it outputs a valve open signal Sop to solenoid valve 10Q, opening solenoid valve 10Q (step S4). This causes water discharge pipe 10 to again start discharging water from water outlet 10D. This allows the user to wash away the foamy liquid soap attached to hands H1 and H2, and finish washing their hands.

[0055] As shown in FIG. 7, at time T10, the control unit 10M is in a water discharge standby state (a state in which the status flag is set to 0). At time T11, when the user extends their hand H1 or H2 into another area Ro different from the predetermined area Rt, the control unit 10M switches from a state in which the other-area detection signal So has not been input to a state in which it has been input (Yes in step S2). As a result, the control unit 10M switches the status flag from 0 to 1 at time T11, switching from the water discharge standby state to the discharge standby state (step S6). For example, if the user extends their hand H1 or H2 into the predetermined area Rt after time T11 but before the switch to the water discharge standby state, the control unit 10M outputs the operation signal Smo for two seconds, operates the pump 10J and the air pump 10R for two seconds, and can discharge foamy liquid soap from the discharge port 10E.

[0056] When control unit 10M is in a discharge standby state (a state in which the status flag is set to 1), if the user does not extend hand H1 or hand H2 into the predetermined area Rt at time T12, but instead extends hand H1 or hand H2 into another area Ro different from the predetermined area Rt, control unit 10M switches from a state in which a different area detection signal So has not been input to a state in which it has been input (Yes in step S8 and No in step S13). As a result, control unit 10M initializes the status flag from 1 to 0 at time T12, and switches from the discharge standby state to the water discharge standby state (step S15). For example, if hand H1 or hand H2 is extended into the predetermined area Rt after time T12 but before the switch to the discharge standby state, control unit 10M outputs a valve open signal Sop to open solenoid valve 10Q, allowing water to be discharged from water outlet 10D. In this way, each time the control unit 10M receives an other area detection signal So from the second sensor 10G indicating that hand H1 or hand H2 has entered the other area Ro, it switches between a water discharge standby state in which it waits for water to be discharged from the water outlet 10D, and an ejection standby state in which it waits for liquid soap to be ejected from the outlet 10E.

[0057] 8, at time T20, control unit 10M is in a discharge standby state. While in the discharge standby state, control unit 10M determines that the initialization condition is met (Yes in step S7) at time T21, which is the time when the condition is met and the time T20 is the starting point for switching from the water discharge standby state to the discharge standby state, and initializes the state flag from 1 to 0, switching from the discharge standby state to the water discharge standby state (step S15). In other words, when the initialization condition is met while in the discharge standby state, control unit 10M switches to the water discharge standby state regardless of the input of the other-area detection signal So.

[0058] Before time T21 (No in step S7, before the initialization condition is met), if hand H1 and hand H2 are not presented to the other area Ro (No in step S8), the discharged flag is set to 0 (No in step S9), and hand H1 or hand H2 is presented to the predetermined area Rt (Yes in step S10), control unit 10M outputs operation signal Smo for 2 seconds, operates pump 10J and air pump 10R for 2 seconds (step S11), and then switches the discharged flag from 0 to 1 (step S12). If the discharged flag is set to 1 (Yes in step S9), control unit 10M does not output operation signal Smo even before time T21 (No in step S7, before the initialization condition is met).

[0059] As explained above, the water discharge pipe 10 of the first embodiment is provided with a water discharge outlet 10D that discharges water, and a discharge outlet 10E that discharges a foamy liquid soap different from water. With this configuration, water and foamy liquid soap (a liquid different from water) can be discharged from the water discharge pipe 10, so it is easy to create a configuration in which the water and foamy liquid soap can be received by the hand H1 without removing the hand H1 from the vicinity of the water discharge pipe 10.

[0060] In the water discharge pipe 10, the water discharge port 10D and the discharge port 10E are arranged so that the water discharged from the water discharge port 10D and the foamy liquid soap discharged from the discharge port 10E hit the hand H1 or hand H2 (target object) held out in the predetermined area Rt. With this configuration, by holding out the hand H1 in the predetermined area Rt, water and foamy liquid soap can be discharged onto the hand H1 without removing the hand H1 from the water discharge pipe 10.

[0061] Water outlet 10D is formed to surround outlet 10E. With this configuration, water can be discharged from water outlet 10D and foamy liquid soap can be discharged from outlet 10E toward the same area, so hand H1 or hand H2 (target object) does not have to move in response to the discharge of water or foamy liquid soap, making it easy to use.

[0062] Water outlet 10D and discharge outlet 10E are arranged coaxially. With this configuration, simply by setting the direction of water discharge from water outlet 10D and the direction of liquid soap discharge from discharge outlet 10E to be parallel, water can be discharged from water outlet 10D and foamy liquid soap can be discharged from discharge outlet 10E toward the same area, making it easy to set up water outlet 10D and discharge outlet 10E.

[0063] The water discharge pipe 10 is equipped with a first sensor 10F that detects that a hand H1 or a hand H2 has been placed in a predetermined area Rt, and a second sensor 10G that detects that a hand H1 or a hand H2 has been placed in an area Ro that is different from the predetermined area Rt. With this configuration, it is possible to easily establish control such that the first sensor 10F determines whether water or foamy liquid soap can be discharged, and the second sensor 10G switches between discharging water and discharging foamy liquid soap.

[0064] The water discharge pipe 10 is equipped with a control unit 10M that controls the discharge of water from the water discharge port 10D and the discharge of foamy liquid soap from the discharge port 10E. Each time the second sensor 10G inputs a separate area detection signal So indicating that a hand H1 or hand H2 has been placed in the separate area Ro, the control unit 10M switches between a water discharge standby state in which it waits for water to be discharged from the water discharge port 10D and a discharge standby state in which it waits for foamy liquid soap to be discharged from the discharge port 10E. If an initialization condition is met while the control unit 10M is in the discharge standby state, the control unit 10M switches to the water discharge standby state regardless of the input of the separate area detection signal So. With this configuration, the water discharge standby state can be switched to when the initialization condition is met, which prevents, for example, a situation where foamy liquid soap is suddenly discharged when a user uses the water discharge pipe 10 for the first time.

[0065] The control device 10U includes a control unit 10M that controls the discharge of water from the water outlet 10D of the water discharge pipe 10 and the discharge of foamy liquid soap from the outlet 10E, a first sensor 10F that detects when a hand H1 or hand H2 enters a predetermined area Rt, and a second sensor 10G that detects when a hand H1 or hand H2 enters an area Ro different from the predetermined area Rt. With this configuration, it is easy to build a configuration that precisely controls the discharge of water from the water outlet 10D and the discharge of foamy liquid soap from the outlet 10E by using the detection results of the first sensor 10F and the second sensor 10G.

[0066] Hand washing system 70 includes water discharge pipe 10 and control device 10U. This configuration makes it easy to configure control device 10U to appropriately control water discharge pipe 10, which can discharge water and foamy liquid soap (a liquid different from water).

[0067] <Embodiment 2> As shown in Fig. 9, the hand-washing system 170 of the second embodiment differs from the first embodiment in that the control device 110U has a switch 20G instead of the second sensor, and in the control based on the switch 20G in the control unit 10M. The same components as those of the first embodiment are given the same reference numerals and detailed descriptions are omitted. The description of the operation of the control unit 10M, which is the same as that of the first embodiment, is omitted.

[0068] The hand-washing system 170 includes a water discharge pipe 10 and a control device 110U. The control device 110U includes a first sensor 10F, a switch 20G, and a control unit 10M. The switch 20G is provided so as to be exposed on the forward-facing protruding end surface of the water discharge pipe main body 10A. The switch 20G is provided on a surface different from the surface on which the water outlet 10D and the discharge port 10E are provided. The switch 20G may be, for example, a known tactile switch or electrostatic sensor. The switch 20G continues to output an operation detection signal Sp while pressed (operated) by the user's hand H1 or H2, and stops outputting the operation detection signal Sp while not pressed (operated). In other words, the switch 20G outputs an operation detection signal Sp indicating operation when operated. If an electrostatic sensor is used for the switch 20G, the switch 20G can be provided so as not to be exposed on the forward-facing protruding end surface of the water discharge pipe main body 10A.

[0069] The control unit 10M receives a predetermined area detection signal St from the first sensor 10F and an operation detection signal Sp from the switch 20G. Based on the predetermined area detection signal St and the operation detection signal Sp, the control unit 10M controls the discharge of water from the water outlet 10D and the discharge of foamy liquid soap from the outlet 10E.

[0070] [About the operation of the control unit] Next, an example of the operation of the control unit 10M in embodiment 2 will be described. The operation of the control unit 10M in embodiment 2 differs from that in embodiment 1 in the portion based on the operation of the switch 20G. Therefore, with regard to the operation of the control unit 10M in embodiment 2, only the portions that differ from embodiment 1 will be described, and a description of the portions that are the same as in embodiment 1 will be omitted.

[0071] As shown in Fig. 5, in step S2, the control unit 10M determines whether the operation detection signal Sp has switched from a state where it is not input to a state where it is input. For example, the control unit 10M is configured to store the input state of the operation detection signal Sp when the flowchart shown in Fig. 5 was previously executed (hereinafter also referred to as the previous input state). The control unit 10M compares the previous input state with the input state of the operation detection signal Sp when the flowchart shown in Fig. 5 is currently executed. If the control unit 10M determines in step S2 that the operation detection signal Sp has not switched from a state where it is not input to a state where it is input (No in step S2), the control unit 10M proceeds to step S3.

[0072] In step S2, when the control unit 10M determines that the operation detection signal Sp has switched from a state where it is not input to a state where it is input (Yes in step S2), it proceeds to step S6 and switches from a water discharge standby state to a discharge standby state.

[0073] In step S8, the control unit 10M determines whether the operation detection signal Sp has switched to an input. Specifically, in step S8, the control unit 10M determines whether the operation detection signal Sp has switched from a non-input state to an input state, similar to step S2.

[0074] In step S8, if the control unit 10M determines that the operation detection signal Sp has not switched from a state in which it is not input to a state in which it is input (No in step S8), the process proceeds to step S9. In step S8, if the control unit 10M determines that the operation detection signal Sp has switched from a state in which it is not input to a state in which it is input (Yes in step S8), the process proceeds to step S13.

[0075] Next, an example of the operation of the control unit 10M based on the user's actions will be described.

[0076] As shown in Fig. 6, at time T2, when hands H1 and H2 are evenly wet, the user holds out either hand H1 or hand H2 in the predetermined area Rt and presses switch 20G with the other of hand H1 or hand H2 (see Fig. 9). When switch 20G is pressed by the other of the user's hand H1 or hand H2 at time T2, it outputs an operation detection signal Sp to control unit 10M. Then, based on the fact that the operation detection signal Sp has switched from a state where it has not been input to a state where it has been input at time T2 (Yes in step S2), control unit 10M switches the state flag from 0 to 1, switching from the water discharge standby state to the discharge standby state (step S6).

[0077] 7, at time T11, the user presses switch 20G with hand H1 or hand H2. This causes control unit 10M to switch from a state in which no operation detection signal Sp has been input to a state in which it has been input (Yes in step S2). As a result, control unit 10M switches the state flag from 0 to 1 at time T11 (step S6), and switches from the water discharge standby state to the discharge standby state.

[0078] When control unit 10M is in a discharge standby state (a state in which the status flag is set to 1), if the user presses switch 20G again with hand H1 or hand H2 at time T12, control unit 10M switches from a state in which an operation detection signal Sp has not been input to a state in which it has been input (Yes in step S8). As a result, control unit 10M initializes the status flag from 1 to 0 at time T12 (No in step S13) and switches from a discharge standby state to a water discharge standby state (step S15). In other words, each time control unit 10M receives an operation detection signal Sp indicating that switch 20G has been operated, it switches between a water discharge standby state in which it waits for water to be discharged from water outlet 10D and a discharge standby state in which it waits for liquid soap to be discharged from outlet 10E.

[0079] Similar to the first embodiment, when the initialization condition is met in the discharge standby state, the control unit 10M of the second embodiment switches to the water discharge standby state regardless of the input of the operation detection signal Sp (see FIG. 8).

[0080] The water discharge pipe 10 is equipped with a first sensor 10F that detects when a hand H1 or H2 is placed in the predetermined area Rt, and a switch 20G that is provided on a surface different from the surface on which the water discharge outlet 10D and the discharge outlet 10E are provided and outputs an operation detection signal Sp indicating that the switch has been operated. With this configuration, it is possible to easily configure a control that switches between discharging water and discharging foam liquid soap by determining whether water or foam liquid soap can be discharged using the first sensor 10F and using the operation detection signal Sp output from the switch 20G.

[0081] The water discharge pipe 10 is equipped with a control unit 10M that controls the discharge of water from the water discharge port 10D and the discharge of foamy liquid soap from the discharge port 10E. Each time an operation detection signal Sp is input from the switch 20G, the control unit 10M switches between a water discharge standby state in which it waits for water to be discharged from the water discharge port 10D and a discharge standby state in which it waits for foamy liquid soap to be discharged from the discharge port 10E. If an initialization condition is met while the control unit 10M is in the discharge standby state, it switches to the water discharge standby state regardless of the input of the operation detection signal Sp. With this configuration, since the state can be switched to the water discharge standby state when the initialization condition is met, it is possible to avoid, for example, a situation where foamy liquid soap suddenly discharges from the discharge port 10E when a user uses the water discharge pipe 10 for the first time.

[0082] The control device 110U includes a control unit 10M that controls the discharge of water from the water outlet 10D of the water discharge pipe 10 and the discharge of foamy liquid soap from the outlet 10E, a first sensor 10F that detects when a hand H1 or hand H2 enters a predetermined area Rt, and a switch 20G that is provided on a surface different from the surfaces on which the water outlet 10D and the outlet 10E are provided and that outputs an operation detection signal Sp indicating that the switch has been operated. With this configuration, it is easy to build a configuration that precisely controls the discharge of water from the water outlet 10D and the discharge of foamy liquid soap from the outlet 10E by using the detection results of the first sensor 10F and the switch 20G.

[0083] Hand washing system 170 includes water discharge pipe 10 and control device 110U. This configuration makes it easy to configure control device 110U to appropriately control water discharge pipe 10, which can discharge water and foamy liquid soap (a liquid different from water).

[0084] <Embodiment 3> The hand washing system 270 of the third embodiment has the same configuration as that of the first embodiment shown in Fig. 1, but differs from that of the first embodiment in the control by the control unit 10M of the control device 10U. The same components as those of the first embodiment are given the same reference numerals and detailed descriptions are omitted. The description of the operation of the control unit 10M, which is the same as that of the first embodiment, is omitted.

[0085] For example, as shown in Figure 10, when a user extends his / her hand H1 into the specified area Rt at time T31, a specified area detection signal St is input to the control unit 10M, and at time T31 the control unit 10M outputs a valve opening signal Sop to open the solenoid valve 10Q, and water begins to be discharged from the water outlet 10D.

[0086] At time T32, when the user holds out hand H1 in the specified area Rt and then holds out hand H2 in another area Ro, another area detection signal So is input to control unit 10M, and at time T32 control unit 10M stops outputting valve open signal Sop to solenoid valve 10Q, closing solenoid valve 10Q and stopping water from outlet 10D. At the same time as this, at time T32 control unit 10M simultaneously starts outputting operation signal Smo to pump 10J and air pump 10R, and starts discharging foamy liquid soap from outlet 10E. Control unit 10M continues to output operation signal Smo while the other area detection signal So is being input.

[0087] At time T33, when the user removes the other hand H2 from the separate area Ro, the input of the separate area detection signal So to the control unit 10M stops. At time T33, the control unit 10M simultaneously stops outputting the operation signal Smo to the pump 10J and the air pump 10R, stopping the discharge of foamy liquid soap from the discharge port 10E. At the same time, at time T33, the control unit 10M resumes outputting the valve open signal Sop to the solenoid valve 10Q, restarting the discharge of water from the discharge port 10D. At time T34, when the user removes the hand H1 from the predetermined area Rt, the input of the predetermined area detection signal St to the control unit 10M stops. At time T34, the control unit 10M stops outputting the valve open signal Sop to the solenoid valve 10Q, closing the solenoid valve 10Q and stopping the discharge of water from the discharge port 10D.

[0088] In embodiment 3, when the predetermined area detection signal St and the other area detection signal So are not input, the control unit 10M does not discharge water from the water outlet 10D and does not discharge foamy liquid soap from the outlet 10E. When only the predetermined area detection signal St is input, the control unit 10M continues to discharge water from the water outlet 10D. When both the predetermined area detection signal St and the other area detection signal So are input, the control unit 10M does not discharge water from the water outlet 10D and continues to discharge foamy liquid soap from the outlet 10E. When only the other area detection signal So is input, the control unit 10M does not discharge water from the water outlet 10D and does not discharge foamy liquid soap from the outlet 10E.

[0089] The present disclosure is not limited to the first and second embodiments described above with reference to the drawings, and the following embodiments are also included within the technical scope of the present disclosure. (1) Unlike the first and second embodiments, the initialization condition may be to stop the power supply to the control unit and then restart the power supply to switch from the discharge standby state to the water discharge standby state. (2) The liquid discharged from the outlet is not limited to foamy liquid soap, but may be disinfectant, purified water passed through a water purifier, etc. It may also be configured to discharge non-foamy liquid soap. In this case, the power supply to the air pump may be cut off to prevent the air pump from operating, or an air pump may not be provided. (3) Unlike in embodiment 1, if the predetermined area and another area do not overlap, the second sensor may be provided on the upward-facing side or the left-right side of the protruding end of the discharge pipe main body. Also, the switch may be provided on the upward-facing side or the left-right side of the protruding end of the discharge pipe main body. (4) The present disclosure may be applied to bathroom vanities and sinks. (5) Unlike embodiments 1, 2, and 3, as shown in Figures 11 to 14, outlet 110E may be positioned outside circular water outlet 210D. In this case, because outlet 110E is positioned outside water outlet 210D, water outlet 210D does not have to be annular. In other words, outlet 110E may be adjacent to water outlet 210D. In this case, as shown in Figure 15, water outlet 210D and outlet 110E are positioned so that water discharged from water outlet 210D and foamy liquid soap discharged from outlet 110E hit the receiving area Rr of hand H1 held out in the predetermined area Rt. Figure 15 corresponds to Figure 11. Although not shown, in Figures 12 to 14, the water outlet 210D and the discharge outlet 110E are also positioned so that the water discharged from the water outlet 210D and the foamy liquid soap discharged from the discharge outlet 110E hit the receiving area of ​​the hand held out to a specified area. (6) The water discharge port is not limited to a circular ring shape, but may be a polygonal ring shape, and may have a configuration in which a plurality of water discharge holes 110D are arranged in a circular ring shape around the discharge port 10E, as shown in Figure 16. Also, a plurality of water discharge holes may be arranged in a polygonal ring shape. (7) Unlike in embodiments 1, 2, and 3, the water discharge pipe main body may be attached to a location other than the washbasin. For example, as shown in Fig. 17, the base end of the water discharge pipe main body 110A may be attached to the wall surface W, or as shown in Fig. 18, the base end of the water discharge pipe main body 210A may be attached to the lower end of a protruding portion 50 that protrudes from the wall surface W above the washbasin 100. In this case, the protruding ends of the water discharge pipe main bodies 110A and 210A are positioned so as to extend above the center of the washbasin 100 in the front-to-rear direction. (8) The object includes parts of the human body other than the hand, and objects other than the human body. [Explanation of symbols]

[0090] 10...water discharge pipe, 10D, 110D, 210D...water discharge port, 10E, 110E...discharge port, 10F...first sensor (sensor), 10G...second sensor, 10M...control unit, 10U, 110U...control device, 20G...switch, 70, 170, 270...hand washing system, H1, H2...hand (object), Ro...different area, Rt...predetermined area, So...different area detection signal, Sp...operation detection signal, St...predetermined area detection signal

Claims

1. A spout for discharging water; a discharge port for discharging the liquid other than water; A discharge pipe equipped with

2. The water discharge pipe according to claim 1, wherein the water outlet and the discharge port are arranged so that the water discharged from the water outlet and the liquid discharged from the discharge port hit an object that enters a predetermined area.

3. The water discharge pipe according to claim 2 , wherein the water discharge port is formed so as to surround the periphery of the discharge port.

4. The discharge pipe according to claim 3 , wherein the discharge port and the ejection port are arranged coaxially.

5. a first sensor that detects that the object has entered the predetermined area; a second sensor that detects that the object has entered an area different from the predetermined area; The discharge pipe according to claim 2, further comprising:

6. a sensor that detects that the object has entered the predetermined area; a switch that is provided on a surface different from the surface on which the water outlet and the discharge port are provided, and that outputs an operation detection signal indicating that the switch has been operated when operated; The discharge pipe according to claim 2, further comprising:

7. a control unit that controls the discharge of water from the water discharge port and the discharge of the liquid from the discharge port; The control unit switches between a water discharge standby state in which it waits for water to be discharged from the water outlet and an ejection standby state in which it waits for the liquid to be ejected from the outlet each time a different area detection signal indicating that the object has entered the different area is input from the second sensor, and when an initialization condition is met while in the ejection standby state, the control unit switches to the water discharge standby state regardless of the input of the different area detection signal.

8. a control unit that controls the discharge of water from the water discharge port and the discharge of the liquid from the discharge port; The water discharge pipe described in claim 6, wherein the control unit switches between a water discharge standby state in which it waits for water to be discharged from the water discharge outlet and an ejection standby state in which it waits for the liquid to be ejected from the outlet each time the operation detection signal is input from the switch, and when an initialization condition is met while in the ejection standby state, it switches to the water discharge standby state regardless of the input of the operation detection signal.

9. a control unit that controls the discharge of water from the water discharge port of the water discharge pipe according to claim 1 and the discharge of the liquid from the discharge port; a first sensor that detects that an object has entered a predetermined area; a second sensor that detects that the object has entered an area different from the predetermined area; A control device comprising:

10. a control unit that controls the discharge of water from the water discharge port of the water discharge pipe according to claim 1 and the discharge of the liquid from the discharge port; a sensor that detects that an object has entered a predetermined area; a switch that is provided on a surface different from the surface on which the water outlet and the discharge port are provided, and that outputs an operation detection signal indicating that the switch has been operated when operated; A control device comprising:

11. The discharge pipe according to claim 1; The control device according to claim 9 ; A hand washing system comprising:

12. The discharge pipe according to claim 1; The control device according to claim 10; A hand washing system comprising:

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