JP3564964B2 - Automatic faucet - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an automatic faucet installed on a faucet mounting plate such as a basin or a counter together with a base plate having a built-in operation switch and the like.
[0002]
[Prior art]
Conventionally, for example, as one form of an automatic faucet, as described in Japanese Utility Model Laid-Open No. 4-105156, it is installed on a faucet mounting plate such as a basin or a counter together with a base plate accommodating operation switches and the like. There is an automatic faucet B, the configuration of which is shown in FIG.
[0003]
As shown in the figure, a hollow base 81 is placed on the upper surface of the faucet mounting plate 80, and a plurality of operation switches 82 are mounted on the front of the base 81. A water discharge pipe mounting cylinder 83 is provided at the center of the base 81, and a water discharge pipe 85 having a water discharge port 84 is attached to the front end of the water discharge pipe mounting cylinder 83. A water discharge switch 86 and a hand sensor 87 are attached to the water discharge port 84. A water supply hose 88 is provided in the water discharge pipe 85. One end of the water supply hose 88 is connected to the water discharge port 84, and the other end is connected to a large-diameter communication hole provided on the faucet mounting plate 80. The extension extends below the faucet mounting plate 80 through the hole 89, and the extension end is connected to an electromagnetic on-off valve and a hot and cold water mixing tap (not shown). Further, a small-diameter communication hole 90 is provided in the faucet mounting plate 80 at a position separated from the large-diameter communication hole 89, and one end of the operation switch 82 or the water discharge switch 86 is provided through the communication hole 90. Also, a connection cord 91 connected to the hand sensor 87 extends below the faucet mounting plate 80 and is connected to an electromagnetic on-off valve and a power supply.
The operation of the operation switch 82, the water discharge switch 86, and the hand sensor 87 allows the automatic faucet B to perform predetermined water discharge operation and stop operation.
[0004]
[Problems to be solved by the invention]
However, the above-mentioned conventional automatic faucet B still has the following problems to be solved.
[0005]
That is, as shown in FIG. 9, when installing the automatic faucet B on the faucet mounting plate 80, the faucet mounting plate 80 is provided with a large-diameter communication hole 89 for a water supply hose 88. In addition, it is necessary to provide a small diameter communication hole 90 for the connection cord 91. Providing two holes in the faucet mounting plate 80 in this way complicates the operation of installing the automatic faucet B, and also reduces the installation location of the faucet mounting plate 80 for installing the automatic faucet B. It also reduces the strength. In particular, in the case of replacing an existing conventional faucet with an automatic faucet B, since the provision of two holes is not planned from the beginning, the work of newly providing a hole is extremely complicated.
Also, in the above-mentioned automatic faucet B, if the water supplied to the automatic faucet B by the water supply hose 88 leaks for some reason, the operation switch 82 and the like fail because the base 81 is not waterproof. However, there is a possibility that the predetermined water discharge / stop operation cannot be performed.
[0006]
The present invention has been made in view of such circumstances, and it is possible to easily and reliably mount and replace a counter or the like, and to prevent a failure of an operation switch or the like as much as possible. It is intended to provide an automatic faucet.
[0007]
[Means for Solving the Problems]
The automatic faucet according to claim 1, which meets the above object, is provided on a top surface of the faucet mounting plate, and has a hollow box-shaped base plate for accommodating electrical components such as a control board and an operation switch; and on the base plate or the base plate. A faucet portion installed on the upper surface of the faucet portion mounting plate at a position close to the base plate and connected to the hot and cold water supply pipe, and a connecting cord disposed on the lower portion of the faucet portion mounting plate and connected to the electrical component Automatic faucet comprising a function unit such as an on-off valve connected via
The hot water supply pipe and the connection cord are inserted through a single communication hole provided in the faucet portion mounting plate.,
In addition, the base plate is formed by suspending an annular skirt portion on a peripheral portion of a mounting plate for a switch or the like and forming a reinforcing rib inside the annular skirt portion on the back surface of the mounting plate for a switch or the like..
[0008]
Claim2The automatic faucet described in the claim1In the automatic faucet according to the above, the lower end surface of the reinforcing rib is depressed upward from the lower end surface of the annular skirt portion, and a sealing gasket for water sealing is fitted into a lower portion of the base plate, and A seal packing is in contact with a lower end surface of the reinforcing rib.
[0009]
Claim3The described automatic faucet isA hollow box-shaped base plate installed on the upper surface of the faucet mounting plate and accommodating electrical components such as a control board and operation switches; and an upper surface of the faucet mounting plate on the base plate or at a position close to the base plate. A water faucet portion which is installed at the same time and is connected to the hot water supply pipe, and a functional portion such as an on-off valve which is disposed below the faucet portion mounting plate and is connected to the electrical component via a connection cord. In the equipped automatic faucet,
The hot water supply pipe and the connection cord are inserted through a single communication hole provided in the faucet portion mounting plate,
The base plate is configured by vertically suspending an annular skirt portion on a peripheral portion of a mounting plate such as a switch, and a seal packing for sealing water is interposed between the annular skirt portion and the faucet portion mounting plate.
The water sealing seal packing has an upper surface bonded to the annular skirt portion and a lower surface bonded to the faucet portion mounting plate.,
In addition, the adhesive strength of the water sealing seal packing to the faucet mounting plate is made weaker than the adhesive strength of the water sealing seal packing to the annular skirt.
[0010]
Claim4The described automatic faucet isA hollow box-shaped base plate installed on the upper surface of the faucet mounting plate and accommodating electrical components such as a control board and operation switches; and an upper surface of the faucet mounting plate on the base plate or at a position close to the base plate. A water faucet portion which is installed at the same time and is connected to the hot water supply pipe, and a functional portion such as an on-off valve which is disposed below the faucet portion mounting plate and is connected to the electrical component via a connection cord. In the equipped automatic faucet,
The hot water supply pipe and the connection cord are inserted through a single communication hole provided in the faucet portion mounting plate,
The base plate is configured by vertically suspending an annular skirt portion on a peripheral portion of a mounting plate such as a switch, and a seal packing for sealing water is interposed between the annular skirt portion and the faucet portion mounting plate.
Moreover,A plurality of packing holding projections are provided on the upper surface of the water sealing seal packing, and a plurality of projection insertion holes are formed in the annular skirt portion, and the packing holding projections are detachably attached to the projection insertion holes. Plugged in.
[0011]
Claim5The automatic faucet described in the claim4In the automatic faucet described above, a plurality of reinforcing ribs are formed along the inner peripheral surface of the annular skirt portion of the base plate, and the reinforcing rib forms the protrusion insertion hole.
Claim6The automatic faucet according to claim 15In the automatic faucet according to any one of the above, while the faucet portion is placed on one side portion of the base plate, the electrical components are housed in a stilt type in the other side portion of the base plate, The one side and the other side are separated by a partition, and the connection cord derived from the electrical component extends to the one side through a cutout groove provided on an upper edge of the partition, and the hot and cold water supply pipe is provided. At the same time, it is led out below the faucet mounting plate through the communication hole.
Claim7The automatic faucet described in the claim6In the automatic faucet described above, the electrical component is located above the notch groove.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention.
[0013]
First, an overall configuration of an automatic faucet A according to an embodiment of the present invention will be described with reference to FIGS.
As shown in the figure, a thermostatic hot / water mixer tap 12, which is preferably used as a temperature controller, is provided in a lower space 11 of a counter 10 which is an example of a tap section mounting plate to which a wash bowl C is attached. The hot and cold water mixing tap 12 has a horizontally long rectangular box structure, a temperature control section 13 is provided at the center thereof, and a water inlet 14 and a hot water inlet 15 are provided at both ends, respectively. A water supply pipe 16 and a hot water supply pipe 17 are connected to the water inlet 14 and the hot water inlet 15, respectively. On the other hand, on one side of the upper surface of the hot and cold water mixing tap 12, there is provided a mixed hot and cold water outlet 18 which is in communication with the temperature control section 13.
[0014]
An upstream end (lower end) of a mixed hot and cold water supply pipe 19, which is an example of a hot and cold water supply pipe, is connected to the mixed hot and cold water outlet 18. Through 20, it is communicatively connected to a faucet 21 erected on the upper surface of the counter 10.
[0015]
That is, as shown in FIGS. 1 to 3, the faucet portion 21 has a tubular faucet body 22 fixedly mounted on the counter 10, a base attached to the top of the faucet body 22, and a front end. A water discharge pipe 24 formed of a U-shaped pipe having a water discharge port 23, and a hand-sensing sensor 25 disposed in the faucet main body 22 and serving as an example of a detection unit having a directional axis toward the front of the washbasin C. And As shown in FIG. 3, the downstream end (upper end) of the mixed hot / cold water supply pipe 19 extends upward in the faucet main body 22 through a communication hole 20 provided in the counter 10 and has a water discharge fitting mounting head. It is connected to the base of the water discharge pipe 24 through 26.
[0016]
As shown in FIGS. 1 and 2, a water supply branch pipe 28 is branched from a branch part 27 of the water supply pipe 16, and a downstream end of the water supply branch pipe 28 is connected to a junction 29 of the mixed hot and cold water supply pipe 19. ing.
[0017]
As shown in FIG. 2, first and second electromagnetic on-off valves 30 and 31, which are examples of first and second on-off valves, are attached to the mixed hot and cold water supply pipe 19 and the water supply branch pipe 28. A functional unit is formed by the electromagnetic on-off valves 30 and 31 and an adapter 40 described later.
[0018]
Further, in the present embodiment, as shown in FIGS. 1 and 2, in order to stably discharge mixed hot water or water from the faucet portion 21 to the washbasin C, the mixed hot water outlet 18 of the hot water mixing tap 12 is used. And the first electromagnetic on-off valve 30 and the portion of the mixed hot and cold water supply pipe 19 and the portion of the water supply branch line 28 between the branch portion 27 of the water supply pipe 16 and the second electromagnetic on-off valve 31. The first and second constant flow valves 33 and 34 are respectively attached.
In addition, an electric power for driving the first and second solenoid on-off valves 30 and 31, the hand-sensing sensor 25, and an adapter for supplying electric power to a control board 36 described later are provided in the space 11 below the counter 10. 40 are provided.
[0019]
Next, the control unit and the operation unit of the automatic faucet A having the above configuration will be described. As shown in FIGS. 1 and 2, the faucet unit 21 is provided on the counter 10 with a flat hollow box-shaped base plate 35. Mounted through. A control board 36, which is an example of electrical components, is built in a watertight state inside the base plate 35. An operation unit 37, which is an example of an electrical component, is provided above the control board 36. The operation unit 37 includes a water discharge mode changeover switch 38 and a manual water discharge switch 39.
[0020]
As shown in FIGS. 1 to 3, the control board 36 is connected to the adapter 40 and the first adapter 40 disposed in the lower space 11 of the counter 10 via a power supply line 41 and control lines 44 and 45, which are examples of connection cords. , The second solenoid on-off valves 30 and 31.
[0021]
Further, as shown in FIG. 1, the control board 36 is connected to the hand detection sensor 25 provided in the faucet main body 22 on the counter 10 via a control line 42 which is an example of a connection cord. I have.
In the automatic faucet A having the above-described configuration, the first and second electromagnetic on-off valves 30, 31 and the adapter 40 are functional component components, and the functional component is configured by these functional component components. .
[0022]
The present invention provides an automatic faucet A having the above-described configuration, in which not only the mixed hot or cold water supply pipe 19 for selectively supplying the mixed hot or cold water or the water to the water discharge pipe 24, but also the control board 36 with the adapter 40, the first and the second. The power supply line 41 and the control lines 44 and 45 connected to the electromagnetic on-off valves 30 and 31 are inserted through a single communication hole 20 provided in the counter 10.
[0023]
As described above, in the present embodiment, the feed line 41 and the control lines 44 and 45 are connected to the common hot water supply pipe 19 through the common communication hole 20 so as to be connected to the feed line 41 and the control line. There is no need to separately provide a communication hole for wiring the wires 44 and 45, so that the work of making a hole in the counter 10 can be simplified, and the strength of the faucet installation location can be secured. In particular, when replacing the existing faucet with the automatic faucet A, it is not necessary to open a new communication hole, and the installation work of the automatic faucet A can be easily performed.
[0024]
The automatic faucet A according to the present embodiment is also characterized in that the base plate 35 has a structure having sufficient strength and waterproofness as described below.
As shown in FIGS. 4 to 7, the base plate 35 is formed by suspending an annular skirt portion 47 having a predetermined height on a peripheral portion of a switch mounting plate 46 formed of a horizontally long rectangular flat plate. A peripheral reinforcing rib 48, which is an example of a reinforcing rib that forms the inside of the annular skirt portion 47, and a partition wall 49 that is also used as a vertical reinforcing rib are mounted on the back surface of the switch mounting plate 46. The base plate 35 is attached to the counter surface 10a of the counter 10 via a horizontally long rectangular sealing gasket 50 for sealing water. The lower end surface of the peripheral reinforcing rib 48 is slightly depressed above the lower end surface of the annular skirt portion 47 in order to easily position the water sealing seal packing 50. The seal packing 50 for water sealing is preferably made of an elastic material such as rubber having high watertightness and elasticity.
[0025]
With such a configuration, when the base plate 35 is pressed and placed on the counter surface 10a via a tightening mechanism 64 such as a faucet, which will be described later, the first and second compartments 51 and 52 defined by the partition walls 49 in the base plate 35. Can be formed. In addition, since the strength of the base plate 35 can be increased by the peripheral edge reinforcing ribs 48 and the partition walls 49, the water sealing seal packing 50 is entirely pressed between the peripheral edge of the base plate 35 and the counter surface 10a, whereby the base plate 35 is pressed. The watertightness of 35, that is, the waterproofness can be enhanced. Further, since the seal seal 50 for water sealing is hidden by the annular skirt portion 47 and cannot be seen from the outside, the appearance of the automatic faucet A can be improved.
[0026]
As shown in FIGS. 5 and 7, inside the first compartment 51, a raised floor forming member 53 formed of a rectangular plate having a plurality of longitudinal reinforcing ribs 53 a on the lower surface is disposed. A control board 36 is mounted on the upper surface. On the other hand, a cutout groove 54 in which a rubber seal plate 54a is mounted is formed at the upper edge of the partition wall 49, and the power supply line 41 and the control lines 42, 44, The wiring will be performed between the first compartment 51 and the second compartment 52.
[0027]
As described above, in the present embodiment, the control board 36 is disposed in the first compartment 51 in a stilt manner by the stilt forming member 53. Even if water leaks into the compartment 51, the control board 36 can be effectively prevented from getting wet due to the water leak and causing a failure. Although not shown, by setting the position of the control board 36 higher than the notch groove 54, the failure of the control board 36 due to water leakage can be more reliably prevented.
[0028]
In the present embodiment, as shown in FIG. 8, a plurality of packing holding projections 50 b are provided on the periphery of the upper surface of the water sealing seal packing 50. As shown in FIG. 7, these packing holding projections 50 b are formed integrally along the annular skirt portion 47 of the base plate 35 when the water sealing seal packing 50 is in contact with the entire back surface of the base plate 35. Of the plurality of reinforcing ribs as a single unit constituting the peripheral edge reinforcing rib 48 thus formed, are removably fitted into predetermined projection insertion holes 72 to 79. Therefore, the positioning adjustment of the water sealing seal packing 50 to the base plate 35 can be easily performed, and the installation work of the base plate 35 can be easily performed. In the present embodiment, the projection insertion holes 72 to 79 can be formed at the same time when the peripheral edge reinforcing rib 48 is formed.
The upper surface of the water sealing seal packing 50 is adhered to the entire back surface of the peripheral reinforcing ribs 48 provided inside the base plate 35 with a first adhesive, and the lower surface of the water sealing sealing packing 50 is attached to the counter 10 of the counter 10. You may make it adhere to the surface 10a with the 2nd adhesive agent whose adhesive force is weaker than the 1st adhesive agent. In this case, in the positioning adjustment of the base plate 35, the operation of bonding and peeling the water sealing seal packing 50 to and from the counter surface 10a can be easily repeated any number of times, and the installation work of the base plate 35 can be easily performed. Further, by selecting a material having at least front and back adhesive properties as a material of the sealing seal 50 for water sealing, the first and second adhesives described above can be unnecessary, and in this case, the base plate The installation work of 35 can be further facilitated.
[0029]
The automatic faucet A according to the present embodiment is characterized in that the faucet portion 21 and the base plate 35 can be easily and firmly installed on the counter 10 as described below. .
[0030]
As shown in FIG. 5, the second compartment 52 is a part of the communication hole 20 provided in the counter 10 and the sealing gasket 50 for sealing water, and is coaxial with a portion corresponding to the connection hole 20. Are connected via a first water supply pipe through hole 50a provided in the first water supply pipe. On the other hand, on the upper part of the second compartment 52, a faucet mounting wall 55 having a second water supply pipe through-hole 56 arranged on the same axis as the communication hole 20 at the center is provided with a switch mounting plate 46. It is formed as an extension of. As shown in FIG. 4, on the faucet mounting wall 55, a thin-walled metal outer tube 57 and a thick-walled cylindrical inner tube 58 made of synthetic resin fitted into the outer tube 57. And a metal bottom plate 58a attached to the lower end of the outer tube 57 by caulking and supporting the bottom of the inner tube 58, and the faucet main body 22 is placed thereon. The bottom plate 58a is provided with a through hole for passing the mixed hot and cold water supply pipe 19 and the control line 42.
[0031]
The base of the inner tube 58 of the faucet main body 22 and the faucet mounting wall 55 are connected to a tightening bolt 60 having an inner tube engaging head 59 at the top and passing through the communication hole 20, and a back surface of the counter 10. The faucet body 22 and the base plate 35 are integrally and simultaneously tightened to the counter 10 by a tightening mechanism 64 including a washer 61, a tightening seat plate 62, and a tightening nut 63. It can be attached to the counter 10.
[0032]
In the present embodiment, as shown in FIGS. 4 and 5, a small-diameter auxiliary fixing nut 63 a is screwed to the tightening bolt 60, and the faucet main body 22 is previously fixed by the auxiliary fixing nut 63 a. The faucet 22 and the base plate 35 can be easily attached to the counter 10 by the faucet tightening mechanism 64, which can be fixed and integrated with the base plate 35.
[0033]
Further, in the present embodiment, as shown in FIGS. 4, 5 and 7, a pressure receiving ring mounting sleeve 65 is coaxially connected to the second water supply pipe through hole 56 on the lower surface of the faucet mounting wall 55. Is established. On the outer peripheral surface of the pressure receiving ring mounting sleeve 65, a metal pressure receiving ring 66 having the same height as the peripheral edge reinforcing ribs 48 and the partition walls 49 and having a large radial thickness is mounted. Two opposing surfaces of the pressure receiving ring 66 are chamfered to form flat surfaces 66a and 66b, and the flat surfaces 66a and 66b are in surface contact with the opposing peripheral reinforcing ribs 48. In addition, the upper surface of the pressure receiving ring 66 is in contact with the lower surface of the faucet mounting wall 55, and the lower surface of the pressure receiving ring 66 is provided via a peripheral portion of a first water supply pipe through hole 50 a provided in the water sealing seal packing 50. It is placed on the counter surface 10a of the counter 10.
[0034]
Therefore, a strong tightening force generated when the faucet body 22 and the base plate 35 are integrally and simultaneously attached to the counter 10 by the faucet tightening mechanism 64 is substantially transmitted to the counter 10 via the pressure receiving ring 66. Therefore, the tightening force is hardly applied to the base plate 35, and even when the base plate 35 is made of a synthetic resin or the like, it is possible to reliably prevent the base plate 35 from being broken by the tightening force.
[0035]
Further, in the present embodiment, as shown in FIGS. 5 and 7, a pair of hook engaging portions 67 are formed on the lower inner surface of the pressure receiving ring mounting sleeve 65 so as to face each other by 180 °. The portion 67 is formed with a pair of hooks 69 projecting from the upper edge of the pop-up guide cylinder 68 having substantially the same outer diameter as the communication hole 20 at a position facing 180 °. Therefore, the pop-up guide cylinder 68 can be fixedly held in the communication hole 20 by engaging the hook 69 with the hook engaging portion 67 after fitting the pop-up guide cylinder 68 into the communication hole 20. Then, as shown in FIG. 4, the pop-up guide cylinder 68 can guide the elevating operation of the pop-up 71.
[0036]
Further, as shown in FIG. 5, a rotation preventing projection 70 is integrally formed on the upper surface of the faucet mounting wall 55 forming a part of the upper wall of the base plate 35. Then, the plurality of (for example, two at 180 ° opposite positions) rotation preventing projections 70 are fitted into fitting grooves (not shown) provided on the bottom plate 58a of the faucet main body 22, thereby positioning the faucet main body 22. The operation can be easily performed, and the rotation of the faucet main body 22 when the faucet main body 22 is fixed to the base plate 35 can be prevented.
[0037]
As described above, the present invention has been described with reference to the embodiments. However, the present invention is not limited to the configurations described in the above-described embodiments, and the matters described in the claims are not limited. Other embodiments and modifications that can be considered within the scope are also included.
[0038]
【The invention's effect】
Claim 17In the automatic faucet described, the hot water supply pipe to the faucet main body and the connection cords such as the power supply line and the control line are connected to the piping and the wiring through the common communication hole, so that the connection cord is wired. There is no need to separately provide a communication hole, so that it is possible to simplify the work of making a hole in the faucet mounting plate, and to ensure the strength of the faucet installation location. In particular, when replacing an existing faucet with an automatic faucet, it is not necessary to open a new communication hole, and the installation work of the automatic faucet can be easily performed.
[0039]
Also,The base plate has an annular skirt portion suspended from a peripheral portion of the mounting plate for the switch, and the mounting plate for the switch.ofBackToAnnular skirtInsideIt is constituted by forming a reinforcing rib. Therefore, the strength of the base plate can be increased.
[0040]
Claim2In the automatic faucet described, the lower end surface of the reinforcing rib is depressed upward from the lower end surface of the annular skirt portion, and the sealing gasket for water sealing is fitted into the lower portion of the base plate, and the sealing gasket for water sealing is provided. It is in contact with the lower end surface of the reinforcing rib. Therefore, the position of the water sealing seal packing can be easily determined, and the appearance of the automatic water faucet can be improved because the water sealing seal packing is not visible from the outside.
[0041]
Claim3In the automatic faucet described, the base plate has an annular skirt portion suspended from a peripheral portion of a mounting plate such as a switch, and a seal packing for sealing water is interposed between the annular skirt portion and the faucet portion mounting plate. I have. Therefore, the watertight effect or the waterproof effect of the base plate can be enhanced.
[0042]
Also,The water sealing seal packing has an upper surface bonded to the annular skirt portion and a lower surface bonded to the faucet mounting plate. Therefore, the watertight effect or the waterproof effect of the base plate can be further enhanced.
[0043]
Moreover,The adhesive strength of the water sealing seal packing to the faucet mounting plate is weaker than the adhesive strength of the water sealing seal packing to the annular skirt. Therefore, in the positioning adjustment of the base plate, the operation of adhering / peeling the seal seal for sealing to the surface of the faucet mounting plate can be easily repeated any number of times, and the operation of installing the base plate can be easily performed.
[0044]
Claims4In the automatic faucet described above, a plurality of packing holding projections are provided on the upper surface of the water sealing seal packing, and a plurality of projection insertion holes are formed in the annular skirt portion. Removably inserted into. Therefore, the positioning adjustment of the sealing seal for water sealing can be easily performed, and the installation work of the base plate can be easily performed.
[0045]
Claim5In the automatic faucet described above, a plurality of reinforcing ribs are formed along the inner peripheral surface of the annular skirt portion of the base plate, and the reinforcing rib forms a projection insertion hole. Therefore, a base plate having a reinforcing rib and a projection insertion hole can be easily manufactured.
[0046]
Claim6In the automatic faucet described, the faucet portion is placed on one side on the base plate, and electrical components are housed in a stilt type in the other side of the base plate, and the one side and the other side are separated. The connection cord partitioned by the partition wall and led out of the electrical component extends to one side through a cutout groove provided on the upper edge of the partition wall, and is led out below the faucet mounting plate through the communication hole together with the hot water supply pipe. .
Therefore, even if water leaks from the second compartment into the first compartment, it is possible to effectively prevent the control board or the like, which is an electrical component, from getting wet due to the leak and causing a failure.
[0047]
Claim7In the automatic faucet described above, since the position of the control board or the like, which is an electrical component, is higher than the notch groove, failure of the control board or the like due to water leakage can be more reliably prevented.
[Brief description of the drawings]
FIG. 1 is a perspective view when an automatic faucet according to an embodiment of the present invention is attached to a counter.
FIG. 2 is a cutaway front view of the same part.
FIG. 3 is a side sectional view of the same.
FIG. 4 is an enlarged side sectional view of a mounting portion to a counter.
FIG. 5 is a partial front sectional view of the same.
FIG. 6 is a partially cutaway plan view of the operation unit.
FIG. 7 is a rear view of the base plate.
FIG. 8 is a perspective view of a seal packing for sealing water.
FIG. 9 is a side sectional view of a conventional automatic faucet.
[Explanation of symbols]
A Automatic water faucet C Wash bowl
10 Counter (faucet mounting plate) 10a Counter surface
11 Lower space 12 Hot water mixer tap
13 Temperature control unit 14 Water inlet
15 Hot water inlet 16 Water supply pipe
17 Hot water supply pipe 18 Mixed hot water outlet
19 Mixed hot and cold water supply pipe (hot and cold water supply pipe)
20 communication hole 21 faucet
22 faucet body 23 spout
24 water discharge pipe 25 hand detection sensor
26 Water discharge fitting mounting head 27 Branch
28 Water supply branch pipe 29 Merging section
30 First electromagnetic on-off valve (first on-off valve)
31 Second electromagnetic on-off valve (second on-off valve)
33 1st constant flow valve 34 2nd constant flow valve
35 Base plate 36 Control board
37 operation part 38 water discharge mode changeover switch
39 Manual water discharge switch 40 Adapter
41 Power supply line (connection cord) 42 Control line (connection cord)
44 Control line (connection code) 45 Control line (connection code)
46 Switch mounting plate 47 Ring skirt
48 Peripheral reinforcement rib 49 Partition wall
50 Seal Packing for Water Seal 50a First Water Supply Pipe Through Hole
50b Packing holding projection 51 First compartment
52 second compartment 53 raised floor forming member
53a Vertical reinforcing rib 54 Notch groove
54a Seal plate 55 Water faucet mounting wall
56 second water supply pipe through hole 57 outer pipe
58 Inner tube 58a Bottom plate
59 Inner tube engaging head 60 Tightening bolt
61 Washer 62 Seat plate for tightening
63 tightening nut 63a auxiliary fixing nut
64 Tightening mechanism such as faucet 65 Pressure receiving ring mounting sleeve
66 Pressure receiving ring 66a Flat surface
66b Flat surface 67 Hook engaging part
68 Pop-up guide tube 69 Hook
70 Rotation prevention projection 71 Pop-up
72 Projection insertion hole 73 Projection insertion hole
74 Projection insertion hole 75 Projection insertion hole
76 Projection insertion hole 77 Projection insertion hole
78 Projection insertion hole 79 Projection insertion hole

Claims (7)

A hollow box-shaped base plate installed on the upper surface of the faucet mounting plate and accommodating electrical components such as a control board and operation switches; and an upper surface of the faucet mounting plate on the base plate or at a position close to the base plate. A water faucet portion which is installed at the same time and is connected to the hot water supply pipe, and a functional portion such as an on-off valve which is disposed below the faucet portion mounting plate and is connected to the electrical component via a connection cord. In the equipped automatic faucet,
The hot water supply pipe and the connection cord are inserted through a single communication hole provided in the faucet portion mounting plate ,
In addition, the base plate is formed by suspending an annular skirt portion on a peripheral portion of a mounting plate for a switch or the like, and forming a reinforcing rib inside the annular skirt portion on a back surface of the mounting plate for a switch or the like. Automatic faucet characterized by the following. A lower end surface of the reinforcing rib is recessed upward from a lower end surface of the annular skirt portion, and a sealing seal for water sealing is fitted into a lower portion of the base plate, and the sealing packing for sealing is formed of the reinforcing rib. The automatic faucet according to claim 1, wherein the faucet is in contact with a lower end surface. A hollow box-shaped base plate installed on the upper surface of the faucet mounting plate and accommodating electrical components such as a control board and operation switches; and an upper surface of the faucet mounting plate on the base plate or at a position close to the base plate. A water faucet portion which is installed at the same time and is connected to the hot water supply pipe, and a functional portion such as an on-off valve which is disposed below the faucet portion mounting plate and is connected to the electrical component via a connection cord. In the equipped automatic faucet,
The hot water supply pipe and the connection cord are inserted through a single communication hole provided in the faucet portion mounting plate,
The base plate is configured by vertically suspending an annular skirt portion on a peripheral portion of a mounting plate such as a switch, and a seal packing for sealing water is interposed between the annular skirt portion and the faucet portion mounting plate.
The water sealing seal packing, the upper surface is bonded to the annular skirt portion, the lower surface is bonded to the faucet portion mounting plate ,
In addition , an automatic faucet characterized in that an adhesive force of the water sealing seal packing to the faucet portion mounting plate is weaker than an adhesive force of the water sealing seal packing to the annular skirt portion. A hollow box-shaped base plate installed on the upper surface of the faucet mounting plate and accommodating electrical components such as a control board and operation switches; and an upper surface of the faucet mounting plate on the base plate or at a position close to the base plate. A water faucet portion which is installed at the same time and is connected to the hot water supply pipe, and a functional portion such as an on-off valve which is disposed below the faucet portion mounting plate and is connected to the electrical component via a connection cord. In the equipped automatic faucet,
The hot water supply pipe and the connection cord are inserted through a single communication hole provided in the faucet portion mounting plate,
The base plate is configured by vertically suspending an annular skirt portion on a peripheral portion of a mounting plate such as a switch, and a seal packing for sealing water is interposed between the annular skirt portion and the faucet portion mounting plate.
In addition, a plurality of packing holding projections are provided on the upper surface of the water sealing seal packing, and a plurality of projection insertion holes are formed in the annular skirt portion, and the packing holding projections are attached to and detached from the projection insertion holes. Automatic faucet characterized by being freely inserted. The automatic faucet according to claim 4 , wherein a plurality of reinforcing ribs are formed along an inner peripheral surface of the annular skirt portion of the base plate, and the reinforcing ribs form the protrusion insertion holes. The faucet portion is placed on one side of the base plate, and the electrical component is housed in a stilt type in the other side of the base plate, and the one side and the other side are separated by a partition. The connection cord derived from the electrical component extends to the one side through a cutout groove provided in the upper edge of the partition wall, and the connection cord and the hot water supply pipe pass through the communication hole below the faucet portion mounting plate. The automatic faucet according to any one of claims 1 to 5 , wherein the automatic faucet is derived from: The automatic faucet according to claim 6, wherein the electrical component is located above the notch groove.

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