JP3317008B2 - Faucet fixing structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a faucet fixing structure capable of easily attaching and fixing a faucet to a wash basin or the like.

[0002]

2. Description of the Related Art Conventionally, as one form of a fixing structure of a faucet,
As described in Japanese Patent Application Laid-Open No. 2-178430, a faucet mounting wall is sandwiched between a faucet mounting seat and a tightening seat plate fixed to the base of the faucet main body, and a base end is formed at the base of the faucet main body. The fixed tightening bolt extends through the through hole provided in the faucet mounting wall and the through hole provided in the tightening seat plate, and a tightening nut is screwed into the extension portion, and the tightening seat plate is attached to the faucet mounting wall. There is a faucet fixing structure that can be fixed to the upper faucet mounting surface.

[0003] Further, such a faucet main body mounting structure is configured such that an operating rod of a pop-up type drain cock can be mounted thereon, and the operating rod extends downward through a through hole provided in a faucet mounting wall.

[0004]

In the faucet fixing operation using the above-mentioned conventional faucet fixing structure, in order to screw the tightening nut to the tightening bolt, the tightening seat plate is temporarily held. Although it is necessary, since there is no holding means, the tightening seat plate is pressed with one hand and the tightening nut is screwed to the tightening bolt with the other hand.

[0005] However, the work of screwing the tightening nut to the tightening bolt with only one hand has been a complicated operation due to the narrow working space and the like.

Further, a guide for maintaining the directionality of the faucet base and the tightening seat plate and for maintaining the mutual directivity in connection with other components is separately required. Had to be expensive to make.

An object of the present invention is to provide a faucet fixing structure that can solve the above-mentioned problems.

[0008]

According to the present invention, a base of a water faucet main body and a tightening seat plate are provided on upper and lower surfaces of a mounting opening provided in a water faucet mounting wall, respectively. A tightening bolt having an upper end fixed to the base extends downward through a mounting hole and a through hole provided in the tightening seat plate, and a tightening nut is screwed into a downwardly extending portion of the tightening bolt. In the faucet fixing structure in which the plate is pressed against the lower surface of the faucet mounting wall and the faucet main body can be fixed to the faucet mounting surface on the faucet mounting wall, a fastening seat plate is provided at the base of the faucet main body. At the position eccentric from the axis, the base end of the operating rod guide piece of the long pop-up drain plug extending downward through the mounting opening is attached, and this guide piece is attached to the seat plate locking through-hole provided on the tightening seat plate. The present invention relates to a faucet fixing structure characterized by being penetrated and locked in a hole.

[0009]

According to the present invention, a base of the faucet main body and a tightening seat plate are respectively disposed on upper and lower surfaces of a mounting opening provided in the faucet mounting wall, and an upper end is provided on the base of the faucet main body. The fixed tightening bolt is extended downward through a mounting hole and a through hole provided in the tightening seat plate, and a tightening nut is screwed into a downwardly extending portion of the tightening bolt. In a faucet fixing structure in which the faucet main body can be fixed to the faucet mounting surface on the faucet mounting wall by being pressed against the lower surface of the mounting wall, the faucet is eccentric from the axis of the tightening seat plate at the base of the faucet main body. At the position, attach the base end of the operating rod guide piece of the long pop-up drain plug extending downward through the mounting opening, and penetrate the guide piece through the through hole for seat plate locking provided on the tightening seat plate. At the same time as locking, the tightening bolt is arranged at a position eccentric from the axis of the tightening seat plate, Those of the faucet fixing structure, characterized in that belt was sealed through-engaged in a through hole provided in the clamping for seat plate.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings.

(Embodiment 1) In this embodiment, as shown in FIGS. 1 and 2, the faucet fixing structure according to the present invention is provided with a hand detecting sensor to automatically detect the behavior of the hand. This is a case where the present invention is applied to an automatic faucet A capable of discharging and stopping water. However, the application object of the present invention is not limited to the automatic faucet A at all.

As shown in FIGS. 1 and 2, an automatic faucet A having a faucet fixing structure according to the present embodiment is provided on a faucet mounting surface 30a formed at the back of a wash bowl 30 of a wash basin B. Attached faucet part A1 and placed below wash basin B, and the faucet part
A1 is provided with an automatic faucet control box C for supplying mixed hot and cold water through a mixed hot and cold water supply pipe 5 made of a flexible tube such as a resin tube (vinyl chloride tube or the like).

The faucet portion A1 comprises a faucet body 1 installed on the faucet mounting surface 30a in a forwardly inclined state, and a water discharge pipe 3 having a base end protruding from a front upper portion of the faucet body 1. On the front surface, a hand sensing sensor S is provided at a location below the water discharge pipe 3.

On the other hand, the automatic control box C houses therein a thermostatic mixing valve V, an electromagnetic on-off valve V1, a control device F, a power supply device E and the like. Is a hot water supply pipe 7 having an upstream end connected to a hot water supply source and a water supply source, respectively.
And the other end of the water supply pipe 8.

[0016] With this configuration, the user can wash the bowl.
When the hand H is inserted into 30, the hand detection sensor S operates to output an output signal, and based on the output signal, the control device F opens the electromagnetic on-off valve V1. Accordingly, the mixed hot water whose temperature has been adjusted to an appropriate temperature by the thermostatic mixing valve V is discharged from the water discharge pipe 3 into the wash basin 30 via the mixed hot water supply pipe 5 and the faucet main body 1, and this discharge is performed. The hand H can be automatically washed with water.

The present invention is characterized by a faucet fixing structure for fixing the automatic faucet A having the above structure to the faucet mounting surface 30a.

Hereinafter, the faucet fixing structure will be described with reference to FIG. 2 and FIG.

As shown in the figure, a faucet body 1 having a double pipe structure in which an inner pipe 12 and an outer pipe 11 are arranged concentrically, a skirt portion 12a forming the base end of the inner pipe 12 is provided with water. Plug mounting surface 30a
It is arranged above the mounting opening 39 provided in. The skirt portion 12a has a bolt fixing bracket 40 integrally attached to the inner peripheral surface thereof. The bolt fixing bracket 40 is a long tightening bolt extending vertically downward at an eccentric position from the center.
The upper end of 41 is fixedly connected.

The bolt fixture 40 has a through hole 42 through which the mixed hot and cold water supply pipe 5, the control cord 17 and the like are inserted, and an operating rod 51 and an operating rod guide piece of a pop-up drain plug described later.
A notch groove 43 for inserting 50 is provided.

An annular faucet mounting seat 44 is mounted on the lower surface of the skirt portion 12a of the inner tube 12 in a fitted state, and the faucet mounting seat 44 has a through hole for inserting a tightening bolt 41 therethrough. 45
And a through hole 46 for inserting the mixed hot and cold water supply pipe 5, the control cord 17, and the like, and a cutout groove 47 for inserting the operation rod 51 and the operation rod guide piece 50.

An operating rod guide is provided on the lower surface of the faucet mounting seat 44.
48, and the operating rod guide 48 has an upper annular portion.
49, and an operating rod guide piece 50 having a semicircular cross-section and integrally protruding from the periphery of the upper annular portion 49.

The upper annular portion 49 of the operating rod guide 48
In the inside, a through hole is formed through which the tightening bolt 41, the mixed hot and cold water supply pipe 5, the control cord 17 and the like are inserted, while a guide groove 52 for guiding the operation rod 51 is formed in the operation rod guide piece 50. Will be formed.

An annular upper packing 52a is interposed between the faucet mounting seat 44 and the operating rod guide 48.

Next, on the back side of the mounting opening 39, as shown in FIGS. 2 and 5, there are provided an annular chrysanthemum washer 54 and a packing 55 each of which is partially cut off at the periphery.

Below this packing 55, a horseshoe-shaped thick tightening seat plate 56 is provided.
56 has a through hole 57 for inserting the tightening bolt 41 and a cutout groove for inserting the mixed hot and cold water supply pipe 5 and the control cord 17.
58, and a through hole 59 through which the operating rod 51 and the operating rod guide piece 50 are inserted.

Normally, a chrysanthemum washer 54, a packing 55,
The fastening seat plate 56 is formed integrally with an adhesive or the like in order to facilitate the faucet fixing operation.

Further, below the tightening seat plate 56, a tightening nut 60 made of a long cylinder is disposed.

Next, a procedure for fixing the faucet main body 1 to the faucet mounting surface 30a by the faucet fixing structure having the above configuration will be described.

As shown in FIG. 2 and FIG.
a On the top, the faucet main body 1 is placed with the upper packing 52a and the operating rod guide.
48, Place via the faucet mounting seat 44.

As shown in FIGS. 5 and 6, the mixed hot and cold water supply pipe 5, the control cord 17, the operating rod guide 48, the tightening bolt 41, and the like are pierced or inserted on the back side of the mounting opening 39. Then, the chrysanthemum washer 54, the packing 55, and the tightening washer 56 are sequentially mounted.

Thereafter, the tightening nut 41 is screwed onto the tightening bolt 41, and the tightening seat plate 56 is strongly pressed against the back side of the mounting opening 39 so that the faucet main body 1 is firmly attached to the faucet mounting surface 30a. Can be fixed.

In this fixing operation, it is necessary to hold the tightening seat plate 56 in order to screw the tightening nut 60 into the tightening bolt 41. In this embodiment, however, the operating rod guide piece 50 is required. As shown in FIG. 7, the center XX of the tightening seat plate 56 is
7, the center of gravity of the tightening seat plate 56 is located on the side opposite to the operating rod guide piece 50, as shown in FIG. 50
The inner surface of the through-hole 57 comes into contact with the surface of the operating rod guide piece 50 by being inclined about the engaging portion with the center.

Accordingly, the tightening seat plate 56 is in a so-called automatic stop state, and the tightening seat plate 56 is securely held by the operating rod guide piece 50 even if the hand is released. The screwing work of the tightening nut 60 can be performed extremely easily and reliably.

It should be noted that, in the fixing operation described above, it is also possible to use a tightening bolt 41 instead of the operating rod guide piece 50 to automatically stop.

That is, in the case of this embodiment, the tightening bolt 41 is
As shown in FIG. 5, the tightening seat plate 56 is disposed at a position eccentric from the center of the tightening seat plate 56, so that the center of gravity of the tightening seat plate 56 is located on the side opposite to the tightening bolt 41 as shown in FIG. As a result, the tightening seat plate 56 is inclined around the engaging portion with the tightening bolt 41, and the inner surface of the through hole 57 comes into contact with the surface of the tightening bolt 41.

Therefore, also in this case, the tightening seat plate 56 is in a so-called automatic stop state, so that even if the user releases his / her hand, the tightening seat plate 56 is released.
Since 56 is held by the tightening bolt 41, the screwing operation of the tightening nut 60 to the tightening bolt 41 can be performed extremely easily and reliably.

Next, the configuration of each component of the automatic faucet A according to the illustrated embodiment, its operation and effects will be specifically described with reference to the accompanying drawings.

(Faucet main body 1) In this embodiment, the direction of water discharge of mixed hot water discharged from the water discharge pipe 3 of the faucet main body 1 is substantially horizontal.

That is, as shown in FIG. 1, in this embodiment, the water discharge port 10a of the water discharge pipe 3
L ₁ is the angle θ with respect to a virtual horizontal line L _2, downward 0 ° ~
It is set to be in the range of 35 °.

Therefore, the mixed hot and cold water spouted from the spouting pipe 3 is spouted while drawing radiation, so that the hand washing or face washing space in the wash bowl 30 can be widened.

As a result, it is possible to prevent the face wash space from being narrowed by extending the water discharge pipe 3 toward the front of the wash bowl 30 as in the related art, thereby improving the usability of the automatic faucet A. . In addition, since the hand H can be moved freely, the spouted mixed hot water can be applied not only to the fingertips but also to the entire palm of the hand H that has been put out, so that substantially the entire amount of the mixed hot water can be used for cleaning. It is possible to wash hands with a small amount and save water.

Further, since the amount of forward projection of the water discharge pipe 3 can be reduced, it is possible to eliminate or reduce the feeling of pressure felt by the user by extending the water discharge pipe 3 toward the front of the wash bowl 30. it can.

Further, as shown in FIGS. 1 and 4, the water outlet of the water discharge pipe 3 can be seen from the user, so that the user can accurately and easily reach his / her hand toward the water discharge pipe 3,
From this aspect, the usability of the automatic faucet A can be improved.

The reason why the maximum angle θ is set to 35 ° is that if the angle is larger than that, the length of the water discharge pipe 3 must be increased, which gives a sense of oppression to the user. is there.

On the other hand, if the minimum angle θ is set to 0 °, if the angle is smaller than 0 °, the position where the discharge water for drawing radiation falls on the hand H is located at the rear of the washbasin, and the usability is poor. Because it becomes.

From the experimental results, it has been found that the optimum angle θ is preferably 15 ° to 30 °.

As experimental data, when a constant flow rate valve 6 of 5 liter / min was used, the horizontal reaching distance at 15 cm below the water discharge port 10a was about 9 cm. Therefore, the length of the water discharge pipe 3 can be shortened by about 4 cm as compared with the conventional one.

Next, the concrete structure of the water faucet main body 1 will be described. As shown in FIGS. 2 and 3, the water faucet main body 1 is fitted in a cylindrical outer tube 11 and the outer tube 11. It has a double pipe structure composed of a cylindrical inner pipe 12.

When the outer tube 11 is preferably made of metal and the inner tube 12 is preferably made of synthetic resin, the production cost can be reduced without impairing the glossy appearance of the automatic faucet A. Can be.

The faucet body 1 can be erected by fixing the base end of the inner tube 12 to the faucet mounting surface 30a as shown in FIG.

Further, the faucet main body 1 is, as shown in FIG.
With respect to the faucet mounting surface 30a, it is erected so as to be inclined at a certain gentle angle α (for example, 15 °) forward.

Therefore, as shown in FIGS. 1 and 2, when the water discharge pipe 3 is connected to the faucet main body 1 in an orthogonal state, the water discharge pipe 3 can be inclined downward at a gentle angle θ equal to the inclination angle α with respect to the horizontal plane. As described above, a parabola can be drawn on the water discharged from the water discharge port 10a as described above, so that the optimum position for hand washing can be determined, and the hand washing space at that position can be widened.

As shown in FIGS. 2 and 3, the faucet body 1 has skirts 12a, 11a formed by expanding the skirts of the inner tube 12 and the outer tube 11. The skirt portion 12a,
11a improves the adhesion between the inner and outer pipes 12, 11 and also prevents the inner and outer pipes 12, 11 from being twisted when, for example, attaching or removing the water discharge pipe 3 to or from the faucet body 1. Can be planned.

(Water discharge pipe 3) Next, the configuration of the water discharge pipe 3 will be described with reference to FIGS.

First, the structure for attaching the water discharge pipe 3 to the faucet main body 1 will be described. As shown in FIG.
The water faucet main body 1 in which a water discharge pipe mounting head 2 composed of a cylindrical box is housed and fixed to the top of the inner pipe 12 thereof.

As shown in FIG. 2, the water discharge pipe mounting head 2 has an L-shaped bent flow path K therein, and a water discharge pipe threaded portion 2a is formed at one end of the flow path K. At the other end of the flow path, a supply pipe connecting portion 5a for communicating and connecting the downstream end of the mixed hot / cold water supply pipe 5 is formed.

The water discharge pipe fixing nut 9 is fitted into a hexagonal insertion hole 2b provided on the front surface of the water discharge pipe mounting head 2 and has a female screw portion therein. The proximal end 3a of the water discharge pipe 3 is screwed through the water discharge pipe insertion holes 12b, 11b provided at the upper front part of the inner pipe 12 and the outer pipe 11, and the insertion hole 2b provided at the front face of the water discharge pipe mounting head 2. Will be linked.

Also, the outer peripheral surface of the water discharge pipe 3 is shown in FIGS.
As shown in FIG. 3, a tubular water discharge pipe cover 4 is fitted to the outside. The water discharge pipe cover 4 is provided with a cover engagement flange 3d formed on the peripheral surface of the distal end portion of the water discharge pipe 3 and the water faucet main body 1. It is squeezed and supported between the outer tube 11 forming the outer peripheral surface.

Further, the water discharge pipe 3 has a discharge cap 10 having a plurality of rectifying plates 26 detachably screwed to the tip thereof.

The water discharge port 10a of the discharge cap 10 has the water discharge pipe 3 arranged substantially horizontally as described above.
It can be easily recognized by the user. Therefore, the usability of the automatic faucet A can be improved.

The other components in FIGS. 2 and 3 will be described. 3b is a discharge hole formed at the tip of the water discharge pipe 3, and 3c is formed behind the discharge hole 3b. Male screw part, 27 is an O-ring interposed between the water discharge pipe mounting head 2 and the inner pipe 12, 28 is an O-ring interposed between the water discharge pipe 3 and the water discharge pipe mounting head 2, and 29 is a water discharge pipe 3
And an O-ring interposed between the water discharge pipe cover 4 and the water discharge pipe cover 4.

(Hand Sensing Sensor S) FIGS. 2 and 3 show the mounting structure of the hand sensing sensor S. FIG.

As shown, in this embodiment, the mounting structure of the hand-sensing sensor S is disposed on the front side of the outer tube 11 of the faucet main body 1 and below the water discharge pipe 3. ,
Essentially, a sensor window 13 attached to the front of the outer tube 11 and the inner tube
The sensor mounting hole 14 is provided at a position corresponding to the sensor window 13 on the front surface of the sensor 12, and a sensor mounting cover 15 fitted into the mounting hole 14.

Then, the hand sensor S is provided inside the lid 15.
Is installed. In this manner, the hand sensor S is disposed below the water discharge pipe 3 and the light projection direction is directed downward by approximately 15 °.
Therefore, the position where the hand detection sensor S detects the hand H is
It will be located below the upper edge of the wash bowl 30. Therefore, even if a part of the water hitting the hand is scattered, it is possible to reliably prevent the scattered water from being scattered outside the basin 30. Also, as is apparent from FIG.
The hand-sensing sensors S are arranged in order from top to bottom,
60, a dry battery indicator LED 61, and a light emitting element 62 are mounted in series.

In this configuration, as described above, when the water discharge pipe 3 is in a substantially horizontal state, the faucet main body 1 whose axis is substantially perpendicular to the axis of the water discharge pipe 3 is substantially perpendicular to the water faucet mounting surface 30a. Since the user stands upright, the user can clearly see the dry battery exhaustion display LED 61 even from the front, and can easily and reliably exchange the dry battery 86 described later.

Further, since the dry battery indicator LED 61 is interposed between the light receiving element 60 and the light emitting element 62, a sufficient distance can be provided between the light receiving element 60 and the light emitting element 62. The light receiving element 60 can reliably receive the reflected light from the hand H.

Further, in this embodiment, if the light receiving element 60 detects the reflected light within 10 minutes after the first power-on after the installation, the fact is displayed on the dry battery dead display LED 61. For example, if there is light reflected by the ceramic surface at the time of installation, this fact is displayed, so that it is possible to notify that the installation position is bad. In addition, at the time of confirmation after installation, it is possible to confirm whether or not sensing is performed without opening the water supply tap (at the time of installation, usually, the water supply tap is closed). Therefore, erroneous construction can be prevented beforehand.

(Automatic faucet control box C) Next, basin B
And a mixed hot and cold water supply pipe 5
The configuration of the automatic faucet control box C for supplying mixed hot water via the above will be described with reference to FIG. 2 and FIGS.

As shown in FIG. 2, the mixed hot water discharge port 70 of the thermostatic type mixing valve V fixed to the wall surface W by the hot water supply pipe 7 and the water supply pipe 8 has an integrated water flow path 71 formed therein. One-piece molded pipe 72 made of molded product
The mixed hot and cold water inflow portion 72a is fixedly connected.

The integrally formed pipe 72 is provided with an electromagnetic on-off valve V1 in the middle thereof and a mixed hot and cold water outlet 72b.
The upstream end of the mixed hot and cold water supply pipe 5 is communicatively connected to the water supply via a supply pipe connection structure 90 described later.

The electromagnetic on-off valve V1, the integrally formed pipe 72, the control device F, the power supply device E and the like are integrally surrounded by a protection case 73 having a rectangular box shape.

As shown in FIGS. 2 and 10, the protection case 73 includes a first protection case 75 in the form of a rectangular plate having a shallow annular rib portion 74 on the periphery which is firmly connected to and held by the integrally formed pipe 72.
The annular rib portion 74 of the first protective case 75 has a deep annular rib portion.
A second protective case, which detachably connects 76 and cooperates with the first protective case 75 to form a storage space 77 such as an electromagnetic on-off valve inside.
Consists of 78.

In such a configuration, the first protective case 75
As shown in FIG. 2, an opening 79 is provided on one side wall of the upper part. Through this opening 79, a screw cylinder 80 having a base end integrally protruding from the side surface of the integrally formed pipe 72 protrudes to the outside, and a tightening nut 81 is screwed to the protruding end. Therefore, when the tightening nut 81 is rotated, the inner surface of the first protective case 75 can be strongly pressed against the flange 82 provided on the outer periphery of the screw cylinder 80 on the integrally formed pipe 72, and the first protective case 75 can be securely fixed. In addition, it can be connected and held to the integrally formed pipe 72 without using a separate tightening bolt or nut.

On the other hand, the first protective case of the second protective case 78
The connection to 75 can be easily made by a set screw 83, as shown in FIG.

In the upper space of the protective case 73, FIG.
10, a control device F and a power supply device E are provided, and the control device F is connected to an upper wall of the first protective case 75 by a set screw 84.

On the other hand, the power supply device E includes a dry battery case 85 detachably mounted in the second protective case 78 through an opening provided in a side wall of the second protective case 78, and a plurality of dry battery cases 85 mounted in the case 85. It consists of dry batteries 86. In such a configuration, as shown in FIGS. 10 and 11, a conductive plate 86a is provided at the extension end of the dry battery case 85, and the conductive plate 86a is
When the dry battery case 85 is mounted in the second protective case 78, the conductive spring protrudes from the control device F toward the dry battery case 85.
87, the contact makes it possible to supply power from the dry battery 86 to the control device F and the solenoid on-off valve V1.

The conductive plate 86a provided on the dry battery case 85
As shown in FIG. 10 and FIG. 11, the conductive guide projections 88 are provided on both sides thereof to prevent the conductive spring 87 from bending,
Conduction between the conductive plate 86a and the conductive spring 87 can always be ensured.

In this embodiment, the integral molding unit 72
And the mixed hot / cold water supply pipe 5 are connected by a supply pipe connection structure 90 having the following configuration.

That is, as shown in FIG. 2 and FIG. 12, the integrally formed pipe 72 has its upper end portion connected to the upper wall of the second protective case 78.
It projects upward through an opening 78b provided in 78a, and a cylindrical screw portion 91 having an external thread surface 91a formed on the outer peripheral surface is formed on the projecting portion, and at a position 180 ° opposite to the upper end of the screw portion 91. , A pair of anti-rotation claws 92, 92 are integrally protruded.

The anti-rotation claws 92, 92 have cylindrical screw portions 91.
It has a cross-sectional shape formed by an outer arc-shaped portion 92a having the same diameter as the above and an inner flat portion 92b.

On the other hand, as shown in FIG. 12, a cylindrical socket 93 is disposed above the cylindrical screw portion 91, and the cylindrical socket 93 fits inside the cylindrical screw portion 91. O
It comprises a lower fitting portion 93a on which a ring 93d is mounted, a central enlarged-diameter flange portion 93b with a 180 ° facing peripheral surface chamfered, and a bamboo shoot-shaped upper supply pipe connecting portion 93c.

In the above configuration, when the lower fitting portion 93a is fitted into the cylindrical screw portion 91, the central enlarged flange portion 93b
The chamfered portions on both sides of the inner flat portions 92b, 92 of the rotation preventing claws 92, 92
Surface contact with b. Therefore, the cylindrical socket 93
Cannot rotate relative to the cylindrical screw portion 91.

On the other hand, an upstream end opening of the mixed hot and cold water supply pipe 5 is connected to an upper supply pipe connection portion 93c provided at the upper end of the cylindrical socket 93.

Further, a tapered cap nut 94 having an internally-diametered female screw surface 94a and a reduced-diameter sliding surface 94b formed therein is slidably provided on the outer peripheral surface on the upstream end side of the mixed hot and cold water supply pipe 5. Has been established.

Accordingly, after the cylindrical socket 93 is fitted into the cylindrical screw portion 91, the cap nut 94 is slid downward through the reduced-diameter sliding surface 94b, and then the enlarged-diameter female screw surface 94a is Screw part
When the cylindrical socket 93 is screwed into the male screw surface 91a of the cylinder 91, the rotation of the cylindrical socket 93 is completely prevented by the rotation preventing claws 92, 92. Communication and connection can be performed, and sufficient watertightness between the cylindrical screw portion 91 and the cylindrical socket 93 can be ensured.

At this time, the inner surface of the cap nut 94 presses the mixed hot and cold water supply pipe 5 against the bamboo shoot upper supply pipe connecting portion 93c of the cylindrical socket 93. Water tightness with the cylindrical socket 92 can be sufficiently ensured.

In this embodiment, as shown in FIG.
The cap nut 94 is provided with a knurled outer peripheral surface. Therefore, the cap nut 94 and the mixed hot and cold water supply pipe 5 made of a resin tube can be easily handled by hand without using a tool which may damage the cap nut 94 or the mixed hot and cold water supply pipe 5. The above-described connection and release operations can be performed.

Further, in this embodiment, the socket 194 provided at one end of the control cord 17 is connected to the input plug on the control device F side.
It also features a connection reinforcement structure that can be firmly connected to 95.

That is, in FIG. 8 and FIGS.
A cylindrical screw portion 96 surrounding the flat rectangular block-shaped input plug 95 is integrally formed on the intermediate bottom wall 78b of the protective case 78, and a female screw 96a is formed on the inner surface of the cylindrical screw portion 96. Is formed.

On the other hand, the control cord 17 having a flat rectangular block-shaped socket 194 connected to one end, like the input plug 95 described above, has an inner split cylinder 97 slidably mounted on the outer peripheral surface at one end. ing.

The inner split cylinder 97 has a cylindrical end 97a opposite to the input plug 95 and has a diameter smaller than that of the main body cylindrical portion 97b, and a connecting portion between the cylindrical end 97a and the main body cylindrical portion 97b. A plurality of cord pressing claws 97c protrude from the inner peripheral surface at intervals in the circumferential direction. Each of the cord pressing claws 97c extends toward the center of the control code 17, and the outer peripheral surface of the control code 17 is provided. And slidably abut.

The inner split cylinder 97 has a pair of cutouts 97d, 97d at the end on the input plug 95 side along the split surface.

Further, on the outer peripheral surface of the inner split cylinder 97, an outer tightening cylinder 98 is slidably mounted concentrically, and the outer tightening cylinder 98 is provided at its end on the input plug side. A male screw 98a that can be screwed with the female screw 96a of the cylindrical screw portion 96 is formed, and the cylindrical end 97a opposite to the input side plug is tapered.

Accordingly, after the socket 194 of the control cord 17 is connected to the input plug 95 of the control device F with a certain slack, the male screw 98a of the outer tightening cylinder 98 is connected to the cylindrical screw portion 96.
Screwed into the female screw 96a of
98 is strongly connected and fixed to the second protective case 78, and its cylindrical end 97a presses against the cylindrical end 97a of the inner split cylinder 97 to reduce its diameter. Presses the outer peripheral surface of the control cord 17 and strongly clamps it.

At this time, the socket 194 provided at one end of the control cord 17 is sandwiched between the notches 97d provided at the tip of the inner split tube 97. It is possible to reliably prevent entrainment with the tightening cylinder 98,
The inner split cylinder 97 can be reliably reduced in diameter.

Accordingly, since the control cord 17 can be strongly connected to the second protective case 78 via the inner split cylinder 97 and the outer tightening cylinder 98, the control cord 17 can be strongly connected by an inadvertent operation. Even when a tensile force is applied, it is possible to reliably prevent the socket 194 from falling off from the input plug 95.

Further, as shown in FIG.
The input plug 95 has on its side a locking hook 194a having elasticity and a locking ridge 95a which can be elastically engaged with the locking hook 194a. The socket 194 is prevented from dropping from the input plug 95.

As experimental data, although the tensile strength due to the engagement between the locking hook 194a of the socket 194 and the locking ridge 95a of the input plug 95 is about 40N, according to the present connection reinforcing structure, it is about 40N. It can have five times the tensile strength.

As shown in FIGS. 2, 15 and 16,
In this embodiment, the mixed hot and cold water discharge port 70 of the thermostatic mixing valve V is detachably but firmly connected to the mixed hot and cold water inflow portion 72a of the integrally formed pipe 72 by the following pipe connection structure including the pipe connection fitting Q. ing.

As shown in FIG. 15, the mixed hot and cold water discharge port 70 and the integrally formed pipe 72 to be connected to each other
Connection flanges 101 and 102 are fixed to the connection ends.

On the other hand, as shown in FIG. 15, the pipe connection fitting Q is formed by connecting a pair of opposed outer curved members 103, 103 integrally with each other by a U-shaped connecting member 104 having elasticity, and having one end opened. The main body 105 is formed.
The opening width w of the opening 106 is made smaller than the outer diameter of the connecting flanges 101, 102, and the connecting flanges 101, 102 of the mixed hot water discharge port 70 and the integrally formed pipe 72 are provided at the center of the outer curved members 103, 103. Rectangular notch hole to insert outer edge
107,107 are provided.

Therefore, the connection flanges 101, 102
Then, the outer curved members 103, 103 of the pipe connection fitting Q are expanded against the elastic force of the U-shaped connecting member 104, and fitted into the peripheral edges of both sides of the connecting flanges 101, 102. Later, when the dead center is exceeded, the two peripheral edges of the connecting flanges 101, 102 are fitted into the rectangular cutout holes 107, 107 formed in the outer curved members 103, 103 by the elastic force.
The connecting flanges 101 and 102 can be integrally connected to each other. As a result, as shown in FIG. 16, the integrally formed pipe 72 is connected to the mixed hot and cold water discharge port of the thermostatic mixing valve V.
Can be connected to 70.

In this embodiment, however, as shown in FIG. 15, a hook-shaped rotation preventing projection 108 is integrally provided on the outer peripheral surface of the one-side connecting flange 102, and the projection 108 is , Figure
As shown in FIG. 16, the pipe connection fitting Q is connected to the connection flange 101,
When it is mounted on the connector 102, it fits into the recess 109 formed inside the U-shaped connecting member 104.

Accordingly, in a narrow installation space, the pipe connection fitting Q is rotated by high-pressure water supply or the like, so that it is possible to reliably prevent an accident that the protection case 73 is broken by colliding with the protection case 73.

If the thickness of the protective case 73 is increased,
Although such a damage accident can be prevented, the production cost of the protective case 73 is increased, which is economically problematic.

The work of attaching the protective case 73 to the integrally formed pipe 72 is performed in a narrow space. However, when the pipe connection fitting Q rotates, it interferes with the attachment. In this regard, in this embodiment, since the rotation of the pipe connection fitting Q can be reliably prevented, the protection case 73 can be easily and reliably attached to the integrally formed pipe 72.

Further, as shown in FIG. 15, in the present embodiment, a pair of fitting recesses 109a are provided on the one-side connecting flange 102 so as to face each other, and the other-side connecting flange 101 is provided.
A pair of fitting projections 109b are protrudingly provided at positions corresponding to the above-described pair of fitting recesses 109a on the annular end surface of the above.

Therefore, by fitting the fitting projection 109a into the fitting recess 109b, it is possible to give directionality to the solenoid on-off valve V1 attached to the integrally formed pipe 72. That is, in the present embodiment, the rotation preventing projection 108 can be positioned on the front side (the right side in FIG. 2), and the mounting and dismounting of the electromagnetic on-off valve V1 can be easily performed.

Further, in this embodiment, as shown in FIG.
The mounting structure of the solenoid on-off valve V1 on the mounting base 110 formed integrally with the integrally formed pipe 72 is also characterized.

As shown in FIGS. 2 and 17, the solenoid on-off valve V1
Are the diaphragm valve 111 and the diaphragm valve holding plate 11
2 and an electromagnetic on-off valve driving unit 113.

On the other hand, as shown in FIG. 17, when dust is clogged in the bleed hole 115 into which the cleaning pin 114 is inserted, it is necessary to loosen the mounting bolt and remove the solenoid on-off valve V1 in order to remove the dust. However, in the removal work, since the adhesive force between the diaphragm valve 111 and the diaphragm valve holding plate 112 is strong, only the electromagnetic opening / closing valve driving unit 113 is removed, and both the diaphragm valve 111 and the diaphragm valve holding plate 112 are attached to the mounting base. Only 110 will be left.

However, as shown in FIG. 2, the rear end face of the diaphragm valve holding plate 112 and the upper edge of the mounting base 110 are flush with each other, so that the removal tool cannot be engaged as it is.

Therefore, in this embodiment, a tool insertion space 116 is provided at the rear end face of the diaphragm valve holding plate 112.

Therefore, by inserting the tip of the removal tool into the tool insertion space 116, the diaphragm valve holding plate 112 and the diaphragm valve 111 can be easily removed, and dust can be easily removed from the bleed hole 115. Can be.

Further, in this embodiment, a fixed quantity valve 6 is interposed between the thermostatic mixing valve V and the mixed hot and cold water supply pipe 5 in the automatic faucet control box C as shown in FIGS. The identification quantity valve 6 prevents the mixed hot and cold water from being discharged from the discharge port 10a at a predetermined flow rate or more even when the water pressure fluctuates.

Therefore, even when the mixed hot water is discharged in a parabolic shape, the water quantity can be controlled by the metering valve 6, so that the mixed hot water scatters to a part (arm, etc.) other than the palm of the hand H. Can be effectively prevented.

The metering valve 6 may be of various types including commercially available ones, for example, the one described in Japanese Utility Model Publication No. 2-42231 can be used. 2) The present embodiment is characterized in that the thermostatic type mixing valve V is arranged below the faucet mounting surface 230a without being arranged in the automatic control box C, as shown in FIGS. I do.

That is, as shown in FIGS. 19 and 20, the automatic faucet A according to the present embodiment comprises a faucet portion attached to a faucet mounting surface 230a formed at the back of a wash bowl 230 of a wash basin B. A1 and a lower part of the basin B, and the mixed faucet is supplied to the faucet part A1 via a mixed hot / cold water supply pipe 205 composed of a flexible tube such as a resin tube (vinyl chloride tube or the like). An automatic faucet control box C and a thermostat-type mixing valve V disposed separately from the automatic faucet control box C below the basin B.

The faucet portion A1 comprises: a faucet body 201 installed on the faucet mounting surface 230a in a forwardly inclined state; On the front surface, a hand-sensing sensor S is provided at a location below the water discharge pipe 203.

On the other hand, the automatic control box C houses therein an electromagnetic on-off valve V1, a control device F, a power supply device E and the like.

The thermostatic mixing valve V is
It is mounted substantially on the back of the faucet mounting surface 230a, and the temperature adjustment handle 300 is installed on the faucet mounting surface 230a.

Next, the pipe configuration will be described. The hot water inlet and the water inlet of the thermostat type mixing valve V have the upstream end connected to the hot water supply source and the hot water supply source, respectively. The ends are communicatively connected.

On the other hand, the mixed hot water outlet of the thermostatic mixing valve V is connected to the inflow opening of the integrally formed pipe 272 provided in the automatic control box C via the mixed hot water supply pipe 306.

With this configuration, when the user puts his / her hand into the wash basin B, the hand detection sensor S operates to output an output signal, and the control device F opens the electromagnetic on-off valve V1 based on the output signal. State. Therefore, the mixed hot water whose temperature has been adjusted to an appropriate temperature by the thermostatic mixing valve V is supplied through the mixed hot and cold water supply pipe 205 and the faucet main body 201.
The water is discharged from the water discharge pipe 203 into the basin B, and the discharged water can automatically wash the hands.

In this embodiment, as in the first embodiment,
The faucet body 201 is fixed on the faucet mounting surface 230a by the faucet fixing structure having the same configuration as that of the first embodiment.

Therefore, the effect of the automatic stop can be obtained as in the first embodiment, and the faucet fixing operation can be performed easily and quickly.

The automatic faucet A according to this embodiment has the same configuration as that of the first embodiment except for the configuration described below.
200 is added to the reference numeral of the first embodiment.

That is, in the illustrated embodiment, a configuration different from that of the first embodiment will be described. In this embodiment, the faucet main body 201 is substantially made of plastic or the like on the back surface of the metal casting main body 302. The sensor cover 303 made of synthetic material is detachably mounted, and the
Space between the supply pipe
Form 304.

The faucet main body 201 has a spout
The mounting bracket 305 is connected at its base end to the distal end of a mixed hot / cold water supply pipe 205 extending inside the storage space 104 such as a supply pipe, and has a discharge cap 210 attached to its distal end. and have discharge ports 210a of the discharge cap 210, as described above, the water discharge direction, is the angle θ spouting line L ₁ is with respect to the virtual horizontal line L _2, downward 0 °
It is set to be within the range of ~ 35 °.

A hand detecting sensor S is mounted on the sensor mounting cover 303, and a control code extending in the storage space 104 such as a supply pipe is provided on the hand detecting sensor S.
The tip of 217 is connected.

Further, as shown in FIG.
Water return weirs 310 and 311 are provided above the cover 303 for mounting the sensor and the like, respectively, with the water discharge pipe 203 being interposed therebetween.
1 and flows down along the control code 217 and the like, and it is possible to reliably prevent an accident such as wetting and corroding the floor surface.

The present invention has been described with reference to the embodiments. However, the present invention is not limited to the configuration described in the embodiments, and for example, the following modified examples are included in the scope of the claims. Includes

Although the faucet mounting surface is formed on the washbasin in this embodiment, it is not limited to only the washbasin, and for example, a wall or the like may be used as the mounting surface.

[0135]

According to the present invention, at a position eccentric from the axis of the tightening seat plate,
An operating rod guide piece or a tightening bolt of the pop-up drain plug is disposed in a fixedly supported state, and the guide piece and the tightening bolt are penetrated through a through hole or the like provided in a tightening seat plate.

Accordingly, the center of gravity of the tightening seat plate is located on the opposite side to the operating rod guide piece and the like, and the tightening seat plate is inclined about the engaging portion of the operating rod guide piece and the like, and the through hole is formed. The inner surface comes into contact with the surface of the operating rod guide piece. As a result, the tightening seat plate is in a so-called automatic stop state, and the tightening seat plate is securely held by the operating rod guide piece or the like even when the hand is released. Work can be performed very easily and reliably.

In particular, when the operating rod guide piece of the pop-up drain plug and the tightening bolt are both fixedly supported at a position eccentric from the axis of the tightening seat plate, the operating rod guide piece is It can be used not only as a guide but also as a guide for the tightening seat plate, so that the mounting work of the tightening seat plate can be performed extremely easily. Further, since there is no need to provide a dedicated guide separately, the fixing structure is simple. It can be structured, and the overall product price can be reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a use state of an automatic faucet having a faucet fixing structure according to a first embodiment of the present invention.

FIG. 2 is a sectional side view showing the entire configuration of the automatic faucet.

FIG. 3 is an exploded perspective view of the faucet unit.

FIG. 4 is a front view of the faucet unit.

FIG. 5 is an exploded perspective view of the faucet fixing structure.

FIG. 6 is a sectional view taken along line II of FIG. 2;

FIG. 7 is an explanatory view of an automatic stop by a tightening bolt.

FIG. 8 is a view taken along the line II-II in FIG. 2;

FIG. 9 is a view taken along the line III-III in FIG. 2;

FIG. 10 is a view taken along the line IV-IV in FIG. 2;

FIG. 11 is a front view of a power supply case.

FIG. 12 is an exploded perspective view of a supply pipe connection structure.

FIG. 13 is an exploded perspective view of the control cord connection reinforcing structure.

FIG. 14 is a sectional view taken along line VV of FIG.

FIG. 15 is an exploded perspective view of a pipe connection structure.

FIG. 16 is an assembled perspective view of the pipe connection structure.

FIG. 17 is a cross-sectional side view of a diaphragm valve and a diaphragm valve holding plate of the electromagnetic on-off valve.

18 is a sectional view taken along line VI-VI of FIG.

FIG. 19 is a front view showing the entire structure of the automatic faucet according to the second embodiment.

FIG. 20 is a sectional side view showing the entire configuration of the automatic faucet.

FIG. 21 is an explanatory view of a thermostatic mixing valve of the automatic faucet.

[Explanation of symbols]

 A automatic faucet 1 faucet main body 39 mounting opening 56 tightening seat plate 41 tightening bolt 57 through hole 30a faucet mounting surface 50 operating rod guide piece 59 through hole for seat plate locking

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Gakutoshi Kawabata 2-1-1, Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Prefecture Totoki Co., Ltd. (56) References JP-A-2-20731 (JP, A (58) Fields surveyed (Int. Cl. ⁷ , DB name) E03C 1/042

Claims (2)

(57) [Claims] 1. A base for a water faucet body (1) and a tightening seat plate (56) are disposed on upper and lower surfaces of a mounting opening (39) provided in a water faucet mounting wall, respectively. A tightening bolt (41) having an upper end fixed to the base of (1) extends downward through a mounting hole (39) and a through hole (57) provided in a tightening seat plate (56), and the tightening bolt (41) is extended.
A tightening nut (60) is screwed into the downward extension of, and the tightening seat plate (56) is crimped to the lower surface of the faucet mounting wall by the screwing, and the faucet body (1) is placed on the faucet mounting wall. In the faucet fixing structure that can be fixed to the faucet mounting surface (30a), at the base of the faucet main body (1), at the position eccentric from the axis (XX) of the tightening seat plate (56), Attach the base end of the operating rod guide piece (50) of the elongate pop-up drain plug extending downward through 39), and attach the operating rod guide piece (50) to the tightening seat plate (5).
A faucet fixing structure, wherein the faucet is fixed to a through hole (59) provided in the seat plate provided in (6). 2. A faucet main body and a tightening seat plate provided on the upper and lower surfaces of a mounting opening provided in a faucet mounting wall, respectively. A tightening bolt (41) having an upper end fixed to the base of (1) extends downward through a mounting hole (39) and a through hole (57) provided in a tightening seat plate (56), and the tightening bolt (41) is extended.
A tightening nut (60) is screwed into the downward extension of, and the tightening seat plate (56) is crimped to the lower surface of the faucet mounting wall by the screwing, and the faucet body (1) is placed on the faucet mounting wall. in fixable to the faucet fixing structure in faucet mounting surface (30a), the base of the faucet body (1), or tightening a seat plate axis of (56) (XX)
Extend downward through the mounting opening (39) at an eccentric position from
Of the operating rod guide piece (50) of the long pop-up drain plug
Attach the base end and attach the operating rod guide piece (50) to the tightening seat plate (5
When penetrating and locking into the through hole (59) for locking the seat plate provided in 6)
In addition, the tightening bolt (41) is disposed at a position eccentric from the axis (XX) of the tightening seat plate (56), and the tightening bolt (41) is provided in a through hole ( A faucet fixing structure characterized by being penetrated and locked to 57).