JP2017172125A - Water section device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water section device that suppresses erroneous detection by a radio wave sensor on movements of a user's hand and of an operation part when the user operates the operation part.SOLUTION: A water section device includes a water discharge part having a discharge port, an operation part for operating a water discharging state from the discharge port of the water discharge part, a water receiving part for receiving discharged water flow from the discharge port, and a radio wave sensor part detecting a movement of a user by radiating a radio wave and receiving a reflected wave of the radio wave. The radio wave sensor part and the operation part are installed behind the water receiving part and above an overflow surface of the water receiving part, while the operation part and an operation region that includes a range of movement of the user's hand operating the operation part are located outside of a detection region formed by the radio wave sensor part.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a water-surrounding device, and more particularly to a water-surrounding device that detects an object to be detected using a radio wave sensor.

2. Description of the Related Art Conventionally, a watering device including a human body detection sensor that detects a user and an operation unit that operates water discharge is known (see, for example, Patent Document 1).
In the water-surrounding device such as the above-mentioned patent document, functional parts such as an operation unit, a water discharge unit, and a human body detection sensor are generally gathered and installed in the vicinity.
An infrared sensor is generally used as a human body detection sensor.

  In recent years, there has been a demand for improving the design by concealing the human body detection sensor in a position where it cannot be seen by the user in the water-surrounding device. In order to meet this demand, a radio wave sensor is used as a human body detection sensor. Is being considered for use.

Japanese Patent Laying-Open No. 2011-066753 (especially FIG. 5)

  However, when a radio wave sensor is used as a human body detection sensor, the detection range is wider than that of an infrared sensor. Therefore, if the human body detection sensor is installed at a position like a conventional water-surrounding device, the user operates the operation unit. There is a risk that the radio wave sensor will detect the movement of the hand at the time.

  Therefore, the present invention solves the problems of the prior art as described above, that is, the object of the present invention is to operate the operation unit by a user in a watering device having a radio wave sensor and an operation unit. It is to prevent the radio wave sensor from erroneously detecting the movement of the user's hand and the movement of the operation unit at the time.

  The invention according to claim 1 includes a water discharge unit having a water discharge port, an operation unit that operates a water discharge state from the water discharge port of the water discharge unit, a water receiving unit that receives a water discharge flow discharged from the water discharge port, and a radio wave And a radio wave sensor unit that detects a user's action by receiving a reflected wave of the radio wave, and the radio wave sensor unit and the operation unit are located behind the water receiving unit and An operation area that is installed above the overflow surface of the water receiving section and includes a range of movement of the user's hand that operates the operation section and the operation section is disposed outside a detection area formed by the radio wave sensor section. It is the watering device characterized by having.

  According to this water-surrounding device, the operation area including the operation section and the range of movement of the user's hand that operates the operation section is disposed outside the detection area formed by the radio wave sensor section. Since the radio wave sensor unit is difficult to detect the movement of the user's hand and the operation unit, the radio wave sensor unit shows the movement of the user's hand and the operation unit when the user operates the operation unit. It is possible to suppress erroneous detection.

  According to a second aspect of the present invention, in addition to the configuration of the water-surrounding device described in the first aspect, the water outlet of the water discharger is disposed between the radio wave sensor unit and the operation unit. This is a watering device.

  According to this water-circulating device, in addition to the effect exhibited by the invention according to claim 1, the radio wave sensor unit is formed by disposing the water discharge port of the water discharge unit between the radio wave sensor unit and the operation unit. Since the detection area and the operation area are spaced apart from each other, the detection area and the operation area are less likely to interfere with each other, and the movement of the user's hand and the movement of the operation section when the user operates the operation section. It is possible to further suppress the radio wave sensor unit from erroneously detecting.

  According to a third aspect of the present invention, in addition to the configuration of the water-circulating device described in the first aspect, the operation unit is installed in a lateral direction with respect to the water discharge unit, and the radio wave sensor unit is connected to the water discharge unit. It is arranged on a virtual vertical line passing through the water outlet and is arranged above the water outlet of the water outlet, and the detection area is formed downward so as to include the water outlet of the water outlet. It is a watering device.

  According to this water-circulating device, in addition to the effect exhibited by the invention according to claim 1, the radio wave sensor unit is disposed on a virtual vertical line passing through the water outlet of the water discharger and is disposed above the water outlet of the water discharger. Since the detection area is formed downward so as to include the spout, the detection area formed by the radio wave sensor unit can be formed in a direction other than the operation unit. And the radio wave sensor unit can be further suppressed from erroneously detecting the movement of the user's hand and the movement of the operation unit when the user operates the operation unit.

  According to a fourth aspect of the present invention, in addition to the configuration of the water-circulating device according to the first or third aspect, the radio wave sensor unit is installed in front of the water discharge port of the water discharge unit. This is a watering device.

In general, when the user wants to start water discharge, the user pushes his / her hand so that it touches the trajectory of the water discharge flow near the water discharge port.
Therefore, according to this water around apparatus, in addition to the effect which the invention concerning Claim 1 or Claim 3 has, the radio wave sensor part is installed ahead of the water outlet of the water discharge part, and the radio wave sensor part The radio wave radiated from the water discharge part is suppressed from being reflected, and the detection area formed by the radio wave sensor part can be formed so as to intersect the water discharge flow discharged from the water discharge opening in the vicinity of the water discharge opening. The user's hand desired to move can move, and the movement of the user's hand desired to discharge water can be detected more easily.

  According to a fifth aspect of the present invention, in addition to the configuration of the water-circulating device according to any one of the first to fourth aspects, the operation unit is in a horizontal direction from the water discharge port of the water discharge unit in a front view. The operation unit has an operation lever that is operated to rotate about a rotation axis, and the operation lever of the operation unit is limited in rotation operation range. This is a watering device.

  According to this water-circulating device, in addition to the effect produced by the invention according to any one of claims 1 to 4, the operation lever is operated by limiting the rotation operation range of the operation lever of the operation unit. Even in this case, since the detection area and the operation area are less likely to interfere with each other, the radio wave sensor unit may erroneously detect the movement of the user's hand and the movement of the operation lever itself when the user operates the operation lever. Can be further suppressed.

  According to a sixth aspect of the present invention, in addition to the configuration of the water-circulating device described in any one of the first to fifth aspects, the radio wave sensor unit includes directivity control means for adjusting the detection area. It is the watering device characterized by having.

  According to this water-circulating device, in addition to the effect produced by the invention according to any one of claims 1 to 5, the radio wave sensor unit has directivity control means for adjusting the detection region. Since the detection area can be adjusted, the detection area can be sharply formed to make the detection area and the operation area less likely to interfere with each other. It is possible to further suppress the radio wave sensor unit from erroneously detecting the movement and the movement of the operation unit.

  In the invention according to claim 7, in addition to the configuration of the water-surrounding device according to any one of claims 1 to 6, a radio wave attenuating member for attenuating radio waves radiated from the radio wave sensor unit includes: The water-circulating device is arranged between the radio wave sensor unit and the operation unit.

  According to this water-circulating device, in addition to the effect of the invention according to any one of claims 1 to 6, the radio wave attenuating member for attenuating the radio wave radiated from the radio wave sensor unit is operated with the radio wave sensor unit. The operation area is used because the detection area and the operation area are less likely to interfere with each other because the radio wave radiated from the radio wave sensor section is less likely to propagate in the direction of the operation section. It is possible to further prevent the radio wave sensor unit from erroneously detecting the movement of the user's hand and the movement of the operation unit when operated by the user.

  ADVANTAGE OF THE INVENTION According to this invention, the watering apparatus which can suppress that a radio wave sensor detects erroneously the motion of a user's hand when a user operates an operation part and the movement of an operation part is provided. be able to.

It is a perspective view of the watering device in a first embodiment of the present invention. It is a front view of the watering device in the first embodiment of the present invention. It is a front view of the watering device in a second embodiment of the present invention. It is IV-IV sectional drawing of FIG. It is side surface sectional drawing of the water-surrounding apparatus in 3rd embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.

<1. Configuration of First Embodiment>
With reference to FIG. 1 and FIG. 2, the structure of the watering apparatus which concerns on 1st embodiment of this invention is demonstrated.
FIG. 1 is a perspective view of a watering device in the first embodiment of the present invention, and FIG. 2 is a front view of the watering device in the first embodiment of the present invention.

  As shown in FIG. 1, the water-circulating device 100 according to the first embodiment of the present invention includes a water discharge unit 120 that has a water discharge port 121 and discharges water, and a water receiving unit that receives a water discharge flow discharged from the water discharge unit 120. 110, an operation unit 130 capable of adjusting the flow rate and temperature of the water discharge flow discharged from the water discharge port 121 of the water discharge unit 120, a radio wave sensor unit 140 for detecting a detection target (user's hand, etc.), A radio wave attenuating member 150 for attenuating the radio wave radiated from the radio wave sensor unit 140 is provided.

The water receiving part 110 has a concave shape so as to receive the water flow discharged from the water outlet 121 of the water discharging part 120.
And when the water receiving part 110 is filled with water, the surface formed in the position where water overflows from the water receiving part 110 is the overflow surface 111.
Moreover, the water receiving part 110 is formed with earthenware or resin.

The operation unit 130 includes an operation lever 131 having a long and thin bar shape so that the user can easily grip it, and a base 132 serving as a connection portion of the operation lever 131.
As shown in FIG. 2, the operation unit 130 can be rotated in the left-right direction around the rotation axis C in front view.
When the user holds the operation lever 131 and rotates the operation unit 130, the flow rate, temperature, and the like of the water discharge flow F discharged from the water discharge port 121 of the water discharge unit 120 are adjusted.
A region where the user's hand H and the operation unit 130 move when the user operates the operation unit 130 is the operation region E2, and the operation region E2 is arranged outside the detection region E1, and the detection region E2 Does not overlap with E1.

  Since the movable range of the operation unit 130 is limited to the rotation operation range E3, the user's hand H and the operation region E2 in which the operation unit 130 moves when the user operates the operation unit 130 are limited. .

The water discharge port 121 is disposed between the operation unit 130 and the radio wave sensor unit 140.
That is, the operation unit 130 is disposed at a position spaced apart from the water outlet 121 in the horizontal direction when viewed from the front.

  The radio wave sensor unit 140 includes a radio wave sensor 141 and directivity control means 142, and is installed above the overflow surface 111 of the water receiving unit 110 and inside the rear portion of the water receiving unit 110.

The radio wave sensor 141 is a microwave Doppler sensor having a specific frequency band (for example, about 10 GHz or about 24 GHz band).
The radio wave sensor 141 radiates a radio wave, receives a reflected wave reflected by the detected object, and controls the discharged water from the water discharge port 121 of the water discharging unit 120 based on the movement of the detected object.

As shown in FIG. 2, generally, when the user wants to start water discharge, the user presents the hand H so as to hit the trajectory of the water discharge flow in the vicinity of the water discharge port 121.
Therefore, the radio wave sensor 141 radiates radio waves toward the water outlet 121 in order to detect the hand H that has been presented, and forms a detection region E1 so as to include the water outlet 121.

The directivity control unit 142 is disposed on the radio wave radiation surface 141 a of the radio wave sensor 141.
The radio wave radiated from the radio wave sensor 141 is controlled in directivity by passing through the directivity control means 142, and has sharper directivity than the case where the directivity control means 142 is not provided.
Thereby, the detection region E1 is also formed sharply.

The radio wave attenuation member 150 is a member that attenuates the radio wave radiated from the radio wave sensor unit 140.
The radio wave attenuation member 150 is installed between the radio wave sensor unit 140 and the operation unit 130 so as to attenuate or reflect the radio wave radiated from the radio wave sensor unit 140 toward the operation region E2. ing.
<2. Effects of First Embodiment>

  In the water-circulating device 100 according to the first embodiment of the present invention thus obtained, the operation region E2 including the operation unit 130 and the range of movement of the user's hand H that operates the operation unit 130 has a radio wave sensor unit. Since the radio wave sensor unit 140 is difficult to detect the movement of the hand H of the user who operates the operation unit 130 and the movement of the operation unit 130 by being arranged outside the detection region E1 formed by the 140, the operation unit It is possible to prevent the radio wave sensor unit 140 from erroneously detecting the movement of the user's hand H and the movement of the operation unit 130 when the user operates 130.

  Further, since the water discharge port 121 of the water discharge unit 120 is arranged between the radio wave sensor unit 140 and the operation unit 130, the detection area E1 and the operation area E2 formed by the radio wave sensor unit 140 are arranged apart from each other. Therefore, the detection region E1 and the operation region E2 are less likely to interfere with each other, and the radio wave sensor unit 140 erroneously detects the movement of the user's hand H and the movement of the operation unit 130 when the user operates the operation unit 130. Can be further suppressed.

  Furthermore, since the operation unit 130 is limited in the rotation operation range E3, the detection region E1 and the operation region E2 are less likely to interfere with each other even when the operation unit 130 is operated. It is possible to further prevent the radio wave sensor unit 140 from erroneously detecting the movement of the user's hand H and the movement of the operation unit 130 when the user operates 130.

  In addition, since the radio wave sensor unit 140 includes the directivity control unit 142 that adjusts the detection area E1, the range of the detection area E1 can be adjusted. Therefore, the detection area E1 is sharply formed to detect the detection area E1. And the operation area E2 are less likely to interfere with each other, and the radio wave sensor unit 140 erroneously detects the movement of the user's hand H and the movement of the operation unit 130 when the user operates the operation unit 130. It can further be suppressed.

Furthermore, the radio wave attenuation member 150 that attenuates the radio wave radiated from the radio wave sensor unit 140 is disposed between the radio wave sensor unit 140 and the operation unit 130, so that the radio wave radiated from the radio wave sensor unit 140 can be operated. Since the detection region E1 and the operation region E2 are less likely to interfere with each other because the propagation in the direction of the unit 130 becomes difficult, the movement of the user's hand H when the user operates the operation unit 130 and the operation unit 130. It is possible to further prevent the radio wave sensor unit 140 from erroneously detecting the movement of.
<3. Configuration of Second Embodiment>

Then, with reference to FIG. 3 and FIG. 4, the structure of the watering apparatus which concerns on 2nd embodiment of this invention is demonstrated.
FIG. 3 is a front view of the watering device in the second embodiment of the present invention, and FIG. 4 is a sectional view taken along line IV-IV in FIG.

  The water-surrounding device 200 of the second embodiment is obtained by changing the installation position and angle of the radio wave sensor unit 140 of the water-surrounding device 100 of the first embodiment. Since it is the same as 100, detailed description of the common items is omitted, and only the reference numbers in the 200s in the last two digits are attached.

  As shown in FIGS. 3 and 4, in the water-circulating device 200 according to the second embodiment of the present invention, the radio wave sensor unit 240 is disposed on a virtual vertical line L that is above the water outlet 221 and passes through the water outlet 221. Yes.

The radio wave sensor 240 emits radio waves downward toward the water outlet 221 in order to detect the hand H that has been pushed out, and forms a detection region E1 downward so as to include the water outlet 221. ing.
The detection area E1 is disposed outside the operation area E2, and is formed so as not to overlap the operation area E2.

The operation unit 230 is disposed at a position spaced apart from the water discharge unit 220 and the water discharge port 221 in the horizontal direction when viewed from the front.
<4. Effects of Second Embodiment>

  In the water-circulating device 200 according to the second embodiment of the present invention thus obtained, the operation region E2 including the operation unit 230 and the range of movement of the user's hand H that operates the operation unit 230 has a radio wave sensor unit. Since the radio wave sensor 240 is difficult to detect the movement of the hand H of the user who operates the operation unit 230 and the movement of the operation unit 230 by being arranged outside the detection region E1 formed by the 240, the operation unit It is possible to prevent the radio wave sensor unit 240 from erroneously detecting the movement of the user's hand H and the movement of the operation unit 230 when the user operates 230.

  Further, since the detection region E1 is formed downward so as to include the water discharge port 221 of the water discharger 220, the formation direction of the detection region E1 is different from the operation region E2, and the detection region E1 and the operation Since it is difficult for the area E2 to interfere, the radio wave sensor unit 240 further suppresses erroneous detection of the movement of the user's hand H and the movement of the operation unit 230 when the operation unit 230 is operated by the user. can do.

  Furthermore, since the rotation operation of the operation unit 230 is restricted within the rotation operation range E3, the detection region E1 and the operation region E2 are less likely to interfere with each other even when the operation unit 230 is operated. It is possible to further prevent the radio wave sensor unit 240 from erroneously detecting the movement of the user's hand H and the movement of the operation unit 230 when the user operates 230.

  Further, since the radio wave sensor unit 240 has the directivity control means 242 that adjusts the detection area E1, the range of the detection area E1 can be adjusted. Therefore, the detection area E1 is sharply formed to detect the detection area E1. And the operation region E2 can be made more difficult to interfere with each other, and the radio wave sensor 240 erroneously detects the movement of the user's hand H and the movement of the operation unit 230 when the operation unit 230 is operated by the user. It can further be suppressed.

Furthermore, the radio wave attenuating member 250 that attenuates the radio wave radiated from the radio wave sensor unit 240 is disposed between the radio wave sensor unit 240 and the operation unit 230, so that the radio wave radiated from the radio wave sensor unit 240 can be operated. Since the detection region E1 and the operation region E2 are less likely to interfere with each other because the propagation in the direction of the unit 230 becomes difficult, the movement of the user's hand H when the user operates the operation unit 230 and the operation unit 230 It is possible to further prevent the radio wave sensor unit 240 from erroneously detecting the movement of.
<5. Configuration of Third Embodiment>

Then, with reference to FIG. 5, the structure of the watering apparatus which concerns on 3rd embodiment is demonstrated.
FIG. 5 is a side cross-sectional view of the water-circulating device according to the third embodiment of the present invention, and is a cross-section at the same position as FIG.

  The water-surrounding device 300 according to the third embodiment is obtained by changing the installation position and angle of the radio wave sensor unit 140 of the water-surrounding device 100 according to the first embodiment. Since it is the same as 100, detailed description of the common items is omitted, and only the numbers in the 300s are shared by the last two digits.

As shown in FIG. 4, in the water-circulating device 200 according to the second embodiment of the present invention, the radio wave sensor unit 240 is disposed on a virtual vertical line L that passes through the water discharge port 221 of the water discharge unit 220.
When the radio wave sensor unit 240 is arranged in this manner, the radio wave sensor unit 240 is installed at the same position in the front-rear direction with respect to the water discharge port 221 of the water discharge unit 220, so that the radio wave radiated by the radio wave sensor unit 240 can be generated. It hits the water discharger 220 and is reflected.
As a result, there is a directivity with a large amount of radio waves radiated forward and less radio waves radiated downward.
Therefore, the range of the detection region E1 below the water discharge port 221 of the water discharge unit 220 is formed small, and it becomes difficult to detect the hand H that is pushed out below the water discharge port 221 of the water discharge unit 220.

On the other hand, in the water surrounding device 300 of the third embodiment of the present invention, the radio wave sensor unit 340 is installed in front of the water discharge port 321 of the water discharge unit 320 as shown in FIG.
The radio wave sensor unit 340 in front view is arranged on the left side of the water discharge port 321 of the water discharge unit 320 (that is, the water discharge port 321 is located between the operation unit 330 and the radio wave sensor unit 340 as in the first embodiment). May be arranged), or may be arranged on a virtual vertical line passing through the water discharge port 321 as in the second embodiment.
<6. Effect of Third Embodiment>

  In the water-circulating device 300 according to the third embodiment of the present invention thus obtained, the operation region E2 including the operation unit 330 and the range of movement of the user's hand H that operates the operation unit 330 has a radio wave sensor unit. Since the radio wave sensor unit 340 is difficult to detect the movement of the hand H of the user who operates the operation unit 330 and the movement of the operation unit 130 by being arranged outside the detection region E1 formed by the 340, the operation unit It is possible to prevent the radio wave sensor unit 340 from erroneously detecting the movement of the user's hand H and the movement of the operation unit 330 when the user operates 330.

  In addition, since the water discharge port 321 of the water discharge unit 320 is disposed between the radio wave sensor unit 340 and the operation unit 330, the detection area E1 and the operation area E2 formed by the radio wave sensor unit 340 are arranged apart from each other. Therefore, the detection region E1 and the operation region E2 are less likely to interfere with each other, and the radio wave sensor unit 340 erroneously detects the movement of the user's hand H and the movement of the operation unit 330 when the user operates the operation unit 330. Can be further suppressed.

  Further, since the detection area E1 is formed downward so as to include the water outlet 321 of the water discharger 320, the formation direction of the detection area E1 is different from the operation area E2, and the detection area E1 and the operation Since it becomes difficult to interfere with the area E2, the radio wave sensor unit 340 further suppresses erroneous detection of the movement of the user's hand H and the movement of the operation unit 330 when the user operates the operation unit 330. can do.

  In addition, since the radio wave sensor unit 340 is installed in front of the water discharge port 321 of the water discharge unit 320, the amount of radio waves radiated from the radio wave sensor unit 340 hits the water discharge unit 320 and is reflected and is emitted forward. The directivity is large and there is a large amount of radio waves radiated downward, so that the detection area E1 below the water discharge port 321 of the water discharge unit 320 is formed large, and the detection region E1 is extended below the water discharge port 321 of the water discharge unit 320. It becomes easy to detect the hand H.

  Furthermore, since the rotation operation of the operation unit 330 is limited within the rotation operation range E3, the detection region E1 and the operation region E2 are less likely to interfere with each other even when the operation unit 330 is operated. It is possible to further suppress the radio wave sensor unit 340 from erroneously detecting the movement of the user's hand H and the movement of the operation unit 330 when the user operates 330.

  In addition, since the radio wave sensor unit 340 includes the directivity control unit 342 that adjusts the detection area E1, the range of the detection area E1 can be adjusted. Therefore, the detection area E1 is sharply formed to detect the detection area E1. And the operation area E2 can be made more difficult to interfere with each other, and the radio wave sensor unit 340 erroneously detects the movement of the user's hand H and the movement of the operation unit 330 when the user operates the operation unit 330. It can further be suppressed.

Furthermore, since the radio wave attenuating member 350 for attenuating the radio wave radiated from the radio wave sensor unit 340 is disposed between the radio wave sensor unit 340 and the operation unit 330, the radio wave radiated from the radio wave sensor unit 340 is operated. Since the detection region E1 and the operation region E2 are less likely to interfere with each other due to the difficulty in propagating in the direction of the unit 330, the movement of the user's hand H when the user operates the operation unit 330 and the operation unit 330 It can be further suppressed that the radio wave sensor unit 340 erroneously detects the movement of.
<7. Modification>
As mentioned above, although the form for implementing this invention was demonstrated, this invention is not limited above.

For example, in the form for carrying out the present invention, the water-circulating device is configured to include a water discharge unit, a water receiving unit, an operation unit, and a sensor unit, and any device may be used as long as these configurations are included. .
For example, a bathroom vanity having a mirror or a kitchen having a water discharger for a water purifier may be used.

  The operation lever of the operation unit has a long and narrow bar shape, but may have any shape as long as the user can grip it, for example, may have a ring shape.

  Moreover, although the operation part was able to adjust a flow volume and temperature by a user operating, it may change water discharge shapes, such as a column shape and shower shape.

  In addition, the elements included in the above-described embodiments can be combined as long as technically possible, and combinations thereof are also included in the scope of the present invention as long as they include the features of the present invention.

100, 200, 300 Water supply device 110, 210, 310 Water receiving part 111, 211, 311 Overflowing surface 120, 220, 320 Water discharge part 121, 221, 321 Water outlet 130, 230, 330 Operation part 131, 231, 331 operation Lever 132, 232, 332 Base part 140, 240, 340 Radio wave sensor part 141, 241, 341 Radio wave sensor 141 a, 241 a, 341 a Radio wave radiation surface 142, 242, 342 Directivity control means 150, 250, 350 Radio wave attenuation member H User Hand F Water discharge L Virtual vertical line E1 Radio wave sensor detection area E2 Operation area E3 Rotation operation range C Rotation axis

Claims (7)

A water discharge unit having a water discharge port, an operation unit that operates a water discharge state from the water discharge port of the water discharge unit, a water receiving unit that receives a water discharge flow discharged from the water discharge port, and a radio wave that reflects and reflects the radio wave In a watering device equipped with a radio wave sensor unit that receives a wave and detects a user's action,
The radio wave sensor unit and the operation unit are installed behind the water receiving unit and above the overflow surface of the water receiving unit,
An operation area including a range of movement of the operation part and a user's hand operating the operation part is disposed outside a detection area formed by the radio wave sensor part.   The water-surrounding device according to claim 1, wherein a water discharge port of the water discharge unit is disposed between the radio wave sensor unit and the operation unit. The operation unit is installed at a position horizontally separated from the water discharge port of the water discharge unit in front view,
The radio wave sensor unit is disposed on a virtual vertical line passing through the water discharge port of the water discharge unit in a front view and disposed above the water discharge port of the water discharge unit,
The water-surrounding device according to claim 1, wherein the detection region is formed downward so as to include a water discharge port of the water discharge unit.   4. The water-circulating device according to claim 1, wherein the radio wave sensor unit is installed in front of a water discharge port of the water discharge unit. 5. The operation unit is installed at a position horizontally separated from the water discharge port of the water discharge unit in front view,
The operation unit has an operation lever that is rotated around a rotation axis,
The water-surrounding device according to any one of claims 1 to 4, wherein the operation lever of the operation unit is restricted in rotation operation within a rotation operation range.   The water-surrounding device according to any one of claims 1 to 5, wherein the radio wave sensor unit includes directivity control means for adjusting the detection area.   The radio wave attenuating member for attenuating the radio wave radiated from the radio wave sensor unit is disposed between the radio wave sensor unit and the operation unit. The water-surrounding device as described in.

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