JP3204570U - Automatic faucet - Google Patents

Abstract

An automatic faucet having an internal flow path formed in a cylindrical shape and capable of improving production efficiency and reducing production cost. A fixing unit including a cold water introduction hole and a hot water introduction hole, a faucet unit, a water temperature adjustment unit, a manual control unit, a housing, a solenoid valve, and a sensor. The faucet unit 2 surrounds a cold water channel 21 that communicates with the cold water introduction hole 11 and a hot water channel 22 that communicates with the hot water introduction hole 12, and an adjustment unit attachment part 23 and an adjustment unit attachment It is formed so as to connect the bypass water channel 24, the support hole 25, the lead-out water channel 26 communicating with the support hole 25, and the lead-out water channel 26 and the bypass water channel 24, which are formed on the downstream side of the portion 23. The communication channel is further formed. [Selection] Figure 3

Description

  The present invention relates to an automatic faucet that can automatically discharge and stop water using a sensor.

  It is known that automatic water faucets are widely used for sinks and toilets installed in places such as public facilities, medical facilities, and general houses. Since the automatic faucet can wash hands without touching the faucet, it has the advantage of being highly convenient and preventing the spread of pathogens such as bacteria and viruses. Such a conventional automatic faucet has an infrared sensor electrically connected to a solenoid valve in order to automatically discharge and stop water, and detects the hand put out to the water outlet with infrared rays. Thus, the opening and closing of the electromagnetic valve can be controlled (see, for example, Patent Documents 1, 2, and 3 described later).

  However, in the automatic faucet described above, water discharge and water stoppage are completely controlled by an electromagnetic valve that is operated in accordance with an infrared sensor, so that the infrared sensor or the electromagnetic valve does not operate due to a malfunction such as a failure or a dead battery. And it cannot be used as a faucet until the defect is eliminated. In other words, due to the malfunction of the automatic control function, even the most basic water discharge and water stop functions as a faucet will be lost, and the user cannot wash hands and remove filth. There is a risk of spreading.

  In order to solve this problem, an automatic faucet that automatically discharges and stops water, a faucet body that is integrally formed so as to include a water channel member therein, a detection means, and a temperature adjustment means And an open / close lever and a water discharge pipe, and the detection means, the temperature adjustment means, the open / close lever, and the water discharge pipe are each configured to be attached to the faucet body corresponding to the structure of the water channel member. An automatic faucet is known (see, for example, Patent Document 4).

Taiwan patent M484036 specification Taiwan Patent M4748446 Specification Taiwan Patent I350354 Specification Taiwan Patent M310281 Specification

  Even if the automatic faucet described in Patent Document 4 cannot be detected by the detection means due to a failure and water discharge and water stop cannot be performed automatically, as an emergency measure until the failure is recovered, Water discharge and water stoppage can be controlled by operating the open / close lever. However, since the faucet body in the automatic faucet described in Patent Document 4 is formed so that there are many bent portions in the water channel member that is the internal flow path, the faucet body is manufactured by a casting method. It is necessary. Therefore, the cost for manufacturing the automatic faucet cannot be reduced as a whole.

  An object of the present invention is to solve the above problems and to provide an automatic faucet capable of improving production efficiency and reducing production cost by changing an internal flow path of the automatic faucet.

  In order to achieve the above object, the present invention has a cold water introduction hole capable of introducing cold water from the cold water source when communicating with the cold water source and a hot water introduction hole capable of introducing hot water from the hot water source when communicated with the hot water source. An automatic faucet comprising: a configured fixing unit; and a faucet unit attached to the fixing unit and having a support hole formed at an end opposite to an end attached to the fixing unit. The water faucet unit extends from the cold water introduction hole of the fixed unit to the support hole so as to be substantially parallel to a predetermined axis, receives the cold water from the cold water introduction hole, and flows into the support hole. A chilled water channel that can be made to extend from the hot water introduction hole of the fixed unit to the support hole so as to be substantially parallel to the axis, and receives the hot water from the hot water introduction hole and flows into the support hole A hot water channel that can be connected, an adjustment unit mounting portion that extends along a direction different from the axis and that communicates with the cold water channel and the hot water channel, and the cold water channel and the heat. A bypass water channel formed so as to extend along a direction different from the axis from a position located downstream of the adjustment unit mounting portion in the water channel, and a lead formed so as to communicate with the support hole It is formed so as to surround a water channel and a communication channel formed so as to connect the lead-out channel and the bypass channel, and further, cold water from the cold water channel and hot water from the hot water channel are A water temperature adjustment unit attached to the adjustment unit attachment part of the faucet unit so that the ratio of passing through the adjustment unit attachment part can be adjusted; A manual control unit that is attached to the bypass water channel and configured to be able to switch the communication state of the bypass water channel with the cold water channel and the hot water channel between an open state and a closed state; and A housing that accommodates the fixed unit and the faucet unit, is attached to the faucet unit so as to cover the support hole from the downstream side, an electromagnetic coil, a control shaft driven by the electromagnetic coil, An electromagnetic valve having a valve body that controls a communication state between the support hole and the outlet water channel by sliding in the support hole along the axis according to the operation of the control shaft; The conductive member is electrically connected to a solenoid valve, and operates the solenoid coil of the solenoid valve to move the valve body interlocked with the control shaft. An automatic faucet comprising: a sensor unit configured to control opening and closing of a water discharge channel.

  The automatic faucet of the present invention is configured so that water can be discharged and stopped even if the sensor unit or solenoid valve does not operate due to a component failure or battery exhaustion by installing a manual control unit. Since the internal flow path of the unit is formed so as to be easy to manufacture, the production efficiency can be improved and the production cost can be reduced.

It is a perspective view which shows embodiment of the automatic water tap of this invention. It is a disassembled perspective view which shows embodiment of the automatic water tap of this invention. It is a disassembled perspective view which shows the faucet unit which is a part of embodiment of the automatic faucet of this invention, a water temperature adjustment unit, a manual control unit, and a solenoid valve. It is sectional drawing which shows a part of embodiment of the automatic water tap of this invention. It is sectional drawing by the broken line VV in FIG. It is sectional drawing by broken line VI-VI in FIG. It is sectional drawing by broken line VII-VII in FIG. It is a perspective view which shows only the faucet unit of embodiment of the automatic faucet of this invention from another viewpoint. It is sectional drawing which shows the solenoid valve of embodiment of the automatic water tap of this invention. It is sectional drawing which shows the mechanism which opens and closes the solenoid valve of embodiment of the automatic water tap of this invention.

  Hereinafter, preferred embodiments of an automatic faucet according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing an embodiment of the automatic faucet of the present invention, FIG. 2 is an exploded perspective view showing an embodiment of the automatic faucet of the present invention, and FIG. 3 is an implementation of the automatic faucet of the present invention. FIG. 4 is an exploded perspective view showing a faucet unit, a water temperature adjustment unit, a manual control unit, and a solenoid valve, which are a part of the configuration, and FIG. 4 shows a part of the embodiment of the automatic faucet of the present invention. It is sectional drawing shown.

  As shown in FIGS. 1 to 3, the present embodiment includes a fixed unit 1, a faucet unit 2, a water temperature adjustment unit 3, a manual control unit 4, a housing 5, a solenoid valve 6, The sensor part 7, the water discharge pipe 8, and the assembled battery 9 are included. The assembly of each part will be described later.

  As shown in FIGS. 3 and 4, the fixed unit 1 is attached to, for example, a washbasin or a kitchen, and has a cold water introduction hole 11 that can introduce cold water from the cold water source that communicates with the cold water source, a hot water source, A hot water introduction hole 12 through which hot water can be introduced from the hot water source communicating therewith.

  The water faucet unit 2 will be described with reference to FIGS. 5 is a sectional view taken along the broken line V-V in FIG. 4, FIG. 6 is a sectional view taken along the broken line VI-VI in FIG. 4, and FIG. 7 is a sectional view taken along the broken line VII-VII in FIG. These are the perspective views which show only the faucet unit of embodiment of the automatic faucet of this invention from another viewpoint. The faucet unit 2 is made of a plastic material by an injection molding method. As shown in FIG. 5, the faucet unit 2 is attached to the fixed unit 1 and is located at the end opposite to the end attached to the fixed unit 1. A support hole 25 is formed in the outer periphery of the chilled water channel 21 and the chilled water channel 21 and the hot water channel 22. And it is further formed so that the adjustment unit attaching part 23 shown in FIG. 4, the bypass water channel 24, the derivation water channel 26, and the communication water channel 27 (refer FIG. 6) may be enclosed.

  As shown in FIG. 4, the chilled water channel 21 extends from the chilled water introduction hole 11 of the fixed unit 1 to the support hole 25 substantially parallel to the predetermined axis L, and receives chilled water from the chilled water introduction hole 11 to support the chilled water channel 21. 25. The hot water channel 22 can extend from the hot water introduction hole 12 of the fixed unit 1 to the support hole 25 substantially parallel to the axis L, and can receive hot water from the hot water introduction hole 12 and flow into the support hole 25.

  As shown in FIGS. 3 and 4, the adjustment unit mounting portion 23 is provided between the cold water introduction hole 11 and the hot water introduction hole 12 in detail in the direction of the axis L and the support hole 25 in detail, and the axis L Are formed so as to communicate with each other in the vicinity of the middle in the direction of the axis L of the cold water channel 21 and the hot water channel 22.

  As shown in FIGS. 4, 5, and 8, the bypass water channel 24 is a location that is located downstream of the adjustment unit mounting portion 23 in the cold water channel 21 and the hot water channel 22, and is substantially the same as the axis L. It is formed so as to extend orthogonally and substantially parallel to the extending direction of the adjustment unit mounting portion 23 and to communicate with the cold water channel 21 and the hot water channel 22. The bypass water channel 24 includes a bypass introduction part 241 communicating with the cold water water channel 21 and the hot water water channel 22, and a bypass derivation unit 242 communicating with the bypass introduction part 241 and having a cross-sectional area larger than the cross-sectional area of the bypass introduction part 241. The bypass derivation unit 242 communicates with the communication channel 27 (see FIGS. 6 and 8).

  As shown in FIGS. 3 and 4, the support hole 25 is formed as a terminal of the cold water channel 21 and the hot water channel 22 at a position located on the most downstream side in the cold water channel 21 and the hot water channel 22. The cold water channel 21 and the hot water channel 22 are communicated with each other.

  In the cross-sectional view of FIG. 4, the outlet water channel 26 is a direction substantially orthogonal to the extending direction of the axis L and the bypass water channel 24 at a location further downstream from the adjustment unit mounting portion 23 in the cold water channel 21 and the hot water channel 22. It is formed so that it may extend along. In addition, the lead-out water channel 26 is installed along the axis L in FIG. 6 and communicates with the support hole 25, a first lead-out end 262 that is substantially orthogonal to the lead-in end 261, and a first The lead-out end portion 262 is formed along the direction of the extension line and has a second lead-out end portion 263 that communicates with the communication water channel 27 and has a substantially T-shape. Furthermore, the cold water channel 21 and the hot water channel 22 are respectively arranged on both sides of the first outlet end 262 so as to sandwich the first outlet end 262 of the outlet water channel 26 (see FIGS. 4 and 7). .

  As shown in FIG. 8, the communication water channel 27 is formed so as to connect the bypass water channel 24 and the outlet water channel 26.

  As shown in FIGS. 3 and 4, the water temperature adjustment unit 3 adjusts the ratio of passing through the adjustment unit mounting portion 23 with respect to the cold water from the cold water channel 21 and the hot water from the hot water channel 22. And is mounted in the adjustment unit mounting portion 23 of the faucet unit 2. The water temperature adjustment unit 3 is provided with a cold water restriction hole 311 through which water from the cold water passage 21 passes and a hot water restriction hole 312 through which hot water from the hot water passage 22 passes, and rotates in a direction perpendicular to the axis L. A water temperature adjusting body 31 formed so as to be rotatably mounted in the adjustment unit mounting portion 23 as a moving shaft, and a water temperature adjustment capable of rotating the water temperature adjusting body 31 by engaging with the water temperature adjusting body 31 Lever 32. In addition, the cold water regulating hole 311 and the hot water regulating hole 312 of the water temperature adjusting body 31 are formed so as to penetrate the water temperature adjusting body 31 and to shift the respective penetrating directions by a predetermined angle. When the water temperature adjusting lever 32 is operated to rotate the water temperature adjusting body 31, the area of the connection surface between the cold water restriction hole 311 and the cold water channel 21 and the area of the connection surface between the hot water restriction hole 312 and the hot water channel 22 are as follows. The amount of cold water and hot water that changes and passes through the cold water restriction hole 311 and the hot water restriction hole 312 varies depending on the area of the connection surface. Therefore, the ratio of the cold water and the hot water passing through the adjustment unit attachment portion 23 can be adjusted by the water temperature adjusting body 31, and finally the temperature of the water from the water discharge pipe can be adjusted.

  As shown in FIGS. 3 to 5, the manual control unit 4 is attached to the bypass water channel 24, and the communication state of the bypass water channel 24 with the cold water channel 21 and the hot water channel 22 is changed between an open state and a closed state. It is configured so that it can be switched between. The manual control unit 4 includes a bypass valve 41 formed so as to be pivotably mounted in the bypass water passage 24 about a direction orthogonal to the axis L, and a bypass valve connected to the bypass valve 41. It is comprised so that the bypass lever 42 which can rotate 41 may be included. The bypass valve 41 is fixed in the bypass water passage 24 so as to block the bypass water passage 24, and two through holes 413 are opened at positions corresponding to both sides of the rotation shaft of the bypass valve 41. The water stop plate 411 is rotated in the bypass water passage 24 as the bypass lever 42 is rotated, and corresponds to two through holes 413 (added to the drawing) formed in the water stop plate 411. The two through-holes 413 are communicated with the two through-holes 413 in the open state with the rotation, and the two through-holes 413 are sealed in the closed state while adjoining the notch 414. And a bypass valve body 412 in which a blocking portion 415 is formed. Note that the configuration of the bypass valve 41 shown in FIG. 3 corresponds to the closed state.

  When the bypass valve 41 is rotated by operating the bypass lever 42, the bypass valve body 412 rotates relative to the water stop plate 411 together with the bypass valve 41, and the communication state of the bypass water passage 24 with the communication water passage 27 is established. In the open state where the through hole 413 of the water stop plate 411 and the notch 414 of the bypass valve body 412 communicate with each other, and the blocking portion 415 of the bypass valve body 412 seals the through hole 413 of the water stop plate 411. While being able to switch between a closed state, the communication state with the cold water channel 21 and the hot water channel 22 of the bypass water channel 24 can also be switched between an open state and a closed state. Incidentally, in this embodiment, the rotation axis of the manual control unit 4 is substantially coincident with the extending direction of the mounting hole 23 on the opposite side of the mounting hole 23, but if necessary, the extending direction of the mounting hole 23 It is also possible to configure so as not to match.

  Due to such a structure, when the manual control unit 4 is switched to the open state by an operation on the bypass lever 42, the hot water and cold water from the bypass introduction portion 241 and the through holes 413 formed in the water stop plate 411 and By flowing into the bypass derivation unit 242 via the notch 414 of the bypass valve body 412, the entire bypass channel 24 is filled and further flows into the communication channel 27 via the bypass derivation unit 242, thereby causing the water guide channel 26. To come to reach.

  As shown in FIG. 2, the housing 5 is formed in a substantially cylindrical shape, and is formed so that the fixing unit 1 is inserted from one end and the faucet unit 2 is inserted from the other end to accommodate these.

  FIG. 9 is a cross-sectional view showing a solenoid valve according to an embodiment of the automatic faucet of the present invention, and FIG. 10 is a cross-sectional view showing a mechanism for opening and closing the solenoid valve according to the embodiment of the automatic faucet of the present invention.

  As shown in FIGS. 2 and 3, the solenoid valve 6 is attached to the faucet unit 2 so as to cover the support hole 25 from the downstream side, and is shown in FIGS. 3, 9, and 10. As shown, the electromagnetic coil 61, the control shaft 62 driven by the electromagnetic coil 61, and the support hole 25 and the outlet water channel by sliding in the support hole 25 along the axis L according to the operation of the control shaft 62. 26 has a valve body 63 that controls the communication state with H.26. Further, the electromagnetic valve 6 is interposed between the valve body mounting seat 64 disposed at the end facing the valve body 63 of the control shaft 62, and the valve body 63 and the valve body mounting seat 64. On the other hand, the compression coil spring 65 that can continue to give an urging force to move away from the valve body mounting seat 64 and approach the outlet water passage 26 is disposed on the opposite side of the valve body mounting seat 64 from the side facing the valve body 63. Pressure adjusting chamber 66. The valve body mounting seat 64 is provided with pressure reducing holes 67 formed at both ends so as to communicate with the outlet water passage 26 and the pressure adjusting chamber 66, respectively, and further, the valve body 63 and the valve body mounting seat 64. Are provided with a plurality of communication holes 68 formed so that the cold water channel 21 and the hot water channel 22 can communicate with the pressure regulation chamber 66. Note that the cross-sectional area of the communication hole 68 is smaller than the cross-sectional area of the decompression hole 67.

  As shown in FIGS. 2 and 6, the sensor unit 7 is attached to the front surface and the upper surface of the housing 5 facing the user, for example, and is electrically connected to the electromagnetic valve 6. Further, when the sensor unit 7 reacts to the user, the assembled battery 9 described later supplies electric power to the electromagnetic valve 6 to operate the valve body 63 to move the valve body 63 interlocked with the control shaft 62 to thereby derive the water channel. It is comprised so that opening and closing of 26 can be controlled.

  As shown in FIG. 6, the water discharge pipe 8 is connected to the first lead-out end 262, and extends to the outside of the housing 5 as shown in FIGS. It is formed so as to be led out of the automatic faucet.

  As shown in FIGS. 2 and 6, the assembled battery 9 is disposed in a space close to the electromagnetic valve 6 and the sensor unit 7 inside the housing 5 in order to provide electric power to the electromagnetic valve 6 and the sensor unit 7.

  Next, the operation and effect of the automatic faucet of the present invention having the above-described configuration will be described.

  When the sensor unit 7 detects that an object such as a hand is approaching the automatic faucet of the present invention, the sensor unit 7 operates the electromagnetic valve 6 by the assembled battery 9 and causes a current to flow through the electromagnetic coil 61 of the electromagnetic valve 6. Thus, a magnetic force is generated, the control shaft 62 is sucked up, and the pressure reducing hole 67 is opened, so that the pressure adjusting chamber 66 communicates with the outlet water passage 26. In addition, the communication hole 68 is formed so as to communicate with the cold water channel 21 and the hot water channel 22 and the pressure adjustment chamber 66, and the cross-sectional area of the communication hole 68 is smaller than the cross-sectional area of the decompression hole 67. . Therefore, the water staying in the pressure adjusting chamber 66 due to the water pressure transmitted through the communication hole 68 is discharged to the outlet water passage 26 through the pressure reducing hole 67, and the valve body 63 is connected to the cold water channel 21 and the hot water channel 22. 10 and the pressure adjusting chamber 66 are pressed in the direction facing the valve body mounting seat 64, so that the cold water channel 21, the hot water channel 22 and the outlet channel 26 are introduced as shown in FIG. The end portion 261 communicates, and cold water and hot water flow to the introduction end portion 261 through a path indicated by an arrow in FIG. 10, and flow to the outside of the automatic water faucet via the water discharge pipe 8. Further, in a state where the valve body 63 is compressed, the compression coil spring 65 is in a compressed state.

  On the other hand, when the sensor unit 7 detects that an object such as a hand is separated from the automatic faucet of the present invention, the supply of electric power to the electromagnetic valve 6 is cut off, and the current flowing through the electromagnetic coil 61 of the electromagnetic valve 6 disappears. Then, the magnetic force disappears, the control shaft 62 returns to the original position as shown in FIG. 9, and the pressure adjusting chamber 66 is disconnected from the outlet water channel 26. Then, since the differential pressure between the water pressure in the cold water channel 21 and the hot water channel 22 and the water pressure in the pressure adjustment chamber 66 is eliminated, the pressure on the valve body 63 is eliminated, and the valve body 63 is replaced by the elastic force of the compression coil spring 65 instead. The water flowing through the water discharge pipe 8 stops in order to return to the position and block the introduction end 261.

  With the above configuration, the user operates the bypass lever 42 of the manual control unit 4 even when the sensor unit 7 or the solenoid valve 6 does not function due to a failure or the battery runs out and the solenoid valve 6 does not operate. Thus, the cold water and the hot water in the cold water channel 21 and the hot water channel 22 are guided to the second outlet end portion 263 via the bypass introduction portion 241, the bypass outlet portion 242, and the communication water passage 27. Therefore, it can function as a faucet.

  The temperature of the water flowing from the water discharge pipe 8 can be adjusted by operating the water temperature adjusting lever 32 regardless of the control of the sensor unit 7 or the manual control unit 4.

  As described above, according to the present invention, by changing the internal flow path of the automatic faucet, water can be discharged and stopped even if the sensor unit 7 or the electromagnetic valve 6 does not operate due to a failure or battery exhaustion. Each component of the unit 2, for example, a cold water passage 21, a hot water passage 22, an adjustment unit mounting portion 23, a bypass water passage 24, a support hole 25, and a lead-out water passage 26 are formed in a cylindrical shape. Since it is easy and can be produced by an injection molding method using a plastic material, production efficiency can be improved and production cost can be reduced.

  Further, although the embodiment of the present invention is described in this specification, the present invention is not limited by the configuration according to this embodiment, and the scope of the gist of the present invention described in the claims of the utility model registration As long as it does not deviate from the above, it can be implemented with appropriate modifications.

DESCRIPTION OF SYMBOLS 1 Fixed unit 11 Chilled water introduction hole 12 Hot water introduction hole 2 Water faucet unit 21 Chilled water channel 22 Hot water channel 23 Adjustment unit attachment part 24 Bypass channel 241 Bypass introduction part 242 Bypass derivation part 25 Support hole 26 Derivation water path 261 Inlet end First outlet end 263 Second outlet end 27 Communication channel 3 Water temperature adjustment unit 31 Water temperature adjustment body 311 Cold water regulation hole 311 Hot water regulation hole 32 Water temperature regulation lever 4 Manual control unit 41 Bypass valve 411 Water stop plate 412 Bypass valve body 413 Through hole 414 Notch portion 415 Blocking portion 42 Bypass lever 5 Housing 6 Electromagnetic valve 61 Electromagnetic coil 62 Control shaft 63 Valve body 64 Valve body mounting seat 65 Compression coil spring 66 Pressure adjustment chamber 67 Pressure reducing hole 68 Communication Hole 7 Sensor part 8 Water discharge pipe 9 Battery assembly

Claims (5)

A fixed unit configured to have a cold water introduction hole capable of introducing cold water from the cold water source when communicating with the cold water source and a hot water introduction hole capable of introducing hot water from the hot water source when communicated with the hot water source;
An automatic faucet comprising: a faucet unit attached to the fixed unit and having a support hole formed at an end opposite to an end attached to the fixed unit;
The faucet unit is
A cold water channel that can extend from the cold water introduction hole of the fixed unit to the support hole substantially parallel to a predetermined axis and receive the cold water from the cold water introduction hole and flow into the support hole;
A hot water channel capable of extending from the hot water introduction hole of the fixed unit to the support hole substantially parallel to the axis and receiving the hot water from the hot water introduction hole and flowing into the support hole;
An adjustment unit mounting portion that extends along a direction different from the axis and is formed to communicate with the cold water channel and the hot water channel;
A bypass water channel that is formed so as to extend along a direction different from the axis, from a location that is located downstream of the adjustment unit mounting portion in the cold water channel and the hot water channel;
A lead-out water channel formed to communicate with the support hole;
And a communication water channel formed so as to connect the lead-out water channel and the bypass water channel. Further, cold water from the cold water channel and hot water from the hot water channel are used for the adjustment unit. A water temperature adjustment unit attached to the adjustment unit attachment part of the faucet unit so that the proportion of passing through the attachment part can be adjusted;
A manual control unit that is attached to the bypass channel and configured to be able to switch the communication state of the bypass channel with the cold water channel and the hot water channel between an open state and a closed state;
A housing for housing the fixing unit and the faucet unit;
Attached to the faucet unit so as to cover the support hole from the downstream side, an electromagnetic coil, a control shaft driven by the electromagnetic coil, and the axis along the axis according to the operation of the control shaft An electromagnetic valve having a valve body that controls a communication state between the support hole and the outlet water channel by sliding in the support hole;
It is attached to the housing and electrically connected to the solenoid valve, and the solenoid coil of the solenoid valve is operated to move the valve body interlocked with the control shaft so that the opening and closing of the outlet water channel can be controlled. An automatic faucet comprising: a configured sensor unit. The adjustment unit mounting portion of the faucet unit is formed to extend substantially orthogonal to the cold water channel and the hot water channel and to communicate with the cold water channel and the hot water channel,
2. The bypass water channel according to claim 1, wherein the bypass water channel is formed so as to extend substantially parallel to a direction in which the adjustment unit mounting portion extends, and to communicate with the cold water channel and the hot water channel. Automatic faucet. The outlet water channel of the faucet unit is installed along the axis and communicates with the support hole, a first outlet end substantially orthogonal to the inlet end, and the first outlet A second lead-out end portion that is formed along the direction of the extension line of the lead-out end portion and communicates with the communication water channel, and is formed in a substantially T shape.
The cold water channel and the hot water channel are respectively disposed on both sides of the first outlet end portion so as to sandwich the first outlet end portion of the outlet water channel. Automatic faucet.   The automatic faucet according to claim 1, wherein the faucet unit is made of a plastic material.   The solenoid valve is interposed between a valve body mounting seat disposed at an end of the control shaft facing the valve body, and between the valve body and the valve body mounting seat, and A compression coil spring capable of continuing to apply an urging force to move away from the valve body mounting seat and approach the outlet water passage; and a pressure adjustment disposed on the opposite side of the valve body mounting seat from the side facing the valve body And a plurality of pressure reducing holes, both ends of which are formed so as to communicate with the outlet water channel and the pressure adjusting chamber, respectively, and a plurality of the valve body and the valve body mounting seat. A communication hole formed so as to communicate with the cold water channel and the hot water channel and the pressure regulation chamber, and a cross-sectional area of the communication hole is a cross-sectional area of the decompression hole 2. The smaller of claim 1, wherein Automatic faucet.

Images