JPH08270026A - Preventive structure of water in cock provided with shower device - Google Patents

Abstract

PURPOSE: To prevent penetration of water, by fitting a guide ring pushed by a spring so as to freely slide to the inner periphery of a sleeve holding a shower head freely insered or pulled out, in order to close the clearance between a hose and the sleeve. CONSTITUTION: A guide ring 8 pushed by 8 spring 9 to the protruding direction is fitted so as to freely slide to the inner periphery of a sleeve 1c holding a shower head 4 attached to a sink or the like, to be freely inserted or pulled out. When the shower head 4 is pushed with the sleeve 1c, the guide ring 8 is pushed in by the pusher sleeve 11 of the shower head 4. And while the shower head is pulled out to use it, the guide ring 8 is pushed out by the spring 9 to close the clearance between the sleeve 1c and the hose 6 and prevent penetration of water. An auxiliary guide ring is used if necessary to prevent more effectively penetration of water. In this way, penetration of water into a cabinet can be prevented in a simple structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a faucet equipped with a shower head and a hose which can be inserted into and removed from a holder provided in, for example, a sink, and particularly relates to water that travels through the hose and water that is bathed during use. The present invention relates to a structure for preventing the intrusion of the into the holder side.

[0002]

2. Description of the Related Art As a hot and cold water mixing faucet provided in a sink or a vanity, a hand shower type shower head in which a water discharge portion can be drawn out and used is conventionally known. As a faucet provided with this shower head, for example, Japanese Utility Model Publication No. 6-24451 and Japanese Utility Model Publication No. 4-77394.
There is one described in the publication.

In all of these faucets, the shower head can be inserted into and removed from a cylindrical holder portion provided in the body of the faucet, and a space between the base end of the shower head and the valve mechanism portion of the faucet is provided. The structure is such that the hose is connected, the hose is passed through the holder, and is hung in a U shape.

In such a shower head to which a hose is connected, a gap is created between the holder and the hose when the shower head is pulled out, so that, for example, splashed water when washing dishes or the like is scattered on the holder portion. Or, if the shower head is mistakenly turned to the holder side, water easily gets into the holder. Also, when the shower head is pulled out and returned to the holder after use, water drops on the surface of the hose may pass through the holder and penetrate into the cabinet.

In order to prevent such water from entering,
For example, in the latter publication, a plurality of blocks for sealing are placed around the hose in the holder, and water adhering to the surface of the hose is wiped by these blocks to prevent entry into the cabinet side. I try to prevent it.

On the other hand, it is necessary for the holder to have a function of holding the base end of the shower head so that the hose can pass through by opening the tip end portion of the shower head and detachable. As a configuration for this, there are two types of forms as described in the above publication, and these are shown in FIG.
Shown in

FIG. 16 (a) shows the structure described in the former publication, in which a reduced diameter convex portion 70a is projected at the tip of a cylindrical holder 70 and a spline 70b is formed on the peripheral surface thereof.
Is formed, and the base end of the shower head 71 can be held by engaging with the spline 70b.
Then, a packing 70c is provided at the tip of the holder 70 so that the adhered water on the surface of the hose 72 connected to the shower head 71 can be wiped off, thereby preventing the adhered water from entering. Further, instead of providing such a packing 70c, the through hole at the tip of the holder 70 is made substantially equal to the outer diameter of the hose 72, and when the hose 72 is housed, the water can be removed by the inner peripheral surface of the through hole. There is also a configuration to wipe off.

Further, FIG. 16 (b) is described in the latter publication. Contrary to the previous example, a recess 73a is provided at the tip of the holder 73 and a spline 73b is formed on the inner periphery thereof. The base end of the shower head 74 can be inserted and held in the recess 73a. And shower 7
The inner diameter of the holder 73 through which the hose 75 of No. 4 passes is slightly larger than that of the hose 75, and the block for sealing 76 is provided inside as described above.

[0009]

In the example of FIG. 16 (a), the outer periphery of the hose 72 contacts the packing 70c of the holder 70, so that when the hose 72 is inserted into the holder 70, it adheres to its surface. The water is wiped off and the ingress of water is prevented.

However, the shower head 71 is attached to the holder 7
When returning to 0, the hose 72 is U
Since it hangs down in the shape of a letter, it tends to shake when the hose 72 moves downward. Then, since the water and hot water remain in the U-shaped portion of the hose 72, this swaying is strong due to the inertia and is also transmitted to the shower head 71 via the hose 72. On the other hand, the holder 70
Since the shower head 71 is put back on the convex portion 70a, the convex portion 70a is hidden by the lower end portion of the shower head 71 and becomes invisible. Therefore, when the shower head 71 is returned to the holder 70, it is difficult to check the protrusions 70a because of the shaking and it is difficult to confirm the protrusions 70a.
There is a problem in that it is difficult to put on a and it is difficult to use.

Also, in the case of FIG.
Since it is only necessary to drop the base end portion of the shower head 74 into the concave portion 73a of No. 3, the handling of the shower head 74 is less inconvenient than in the previous example. However,
Between the hose 75 and the inner peripheral wall of the holder 73, a recess 73 is formed.
Since there is a gap including the portion a, water on the surface of the hose 75 easily enters the holder 73.

As described above, in the conventional structure, in order to prevent the entry of water, inconvenience is caused in handling the shower head, and conversely, if importance is attached to the ease of handling the shower head when it is inserted into the holder, water is not important. It cannot be said that it is not sufficient in any case.

On the other hand, in any of the above examples, when the shower heads 71 and 74 are pulled out from the holders 70 and 73, the end surfaces of the holders 70 and 73 are exposed to the outside. Therefore, while the shower heads 71 and 74 are being used, water easily enters from the tips of the holders 70 and 73 as described above. For example, when the shower head 7 or 74 is splashed with water or is directly sprayed with water from the shower heads 71 and 74, the shower head 7 is placed around the sink.
When cleaning with water spouted from 1, 74, such water often enters.

As described above, in the general hand shower type shower head including those described in the above-mentioned publications, the holder side is more likely to be used when the shower head is used rather than the infiltration of water traveling through the hose. The damage caused by entering water is greater than the amount of water. For this reason, even if the holder is provided with a seal structure for wiping off the water adhering to the hose, this cannot be sufficiently prevented from entering the water when actually used.

The problem to be solved in the present invention is to promptly remove and insert the hose, and at the same time reliably prevent not only the water traveling through the hose but also the water from entering the holder side while the shower head is being used. is there.

[0016]

The present invention is a faucet which is connected to the water supply source side through a hose connected to the base end of the shower head in a tubular holding portion into which the base end of the shower head can be inserted and removed. And a guide ring having an annular cross section into which the hose is inserted and which can wipe the outer peripheral surface of the hose, is slidable on the inner peripheral surface of the holding portion and is movable in the withdrawal direction of the hose. It is characterized in that the tip end of the guide ring can be held at a position protruding further than a sliding portion with the holding portion while the guide ring is pulled out from the holding portion.

In such a structure, the guide ring is movable in the shower taking-in / out direction inside the holding portion,
The base end portion of the shower may be provided with a pushing member having a cross-sectional shape surrounding the hose and capable of being inserted into the holding portion, and the pushing member may be abuttable against the tip of the guide ring. .

Further, the guide ring may be biased toward the tip side of the holding portion by elastic means.

Further, in the holding portion, a discharge port for removing water drained by the guide ring is opened on a surface which is below the lower end of the guide ring or the lower end of the lower limit position and faces downward. be able to.

It is also possible to provide an auxiliary guide ring that is capable of draining water in contact with the peripheral surface of the hose at a position spaced from the guide ring on the base end side of the holding part and spaced apart.

In this case, the water drained by the guide ring and the auxiliary guide ring is provided on the surface between the guide ring and the auxiliary guide ring and the position below the auxiliary guide ring and the holding portion faces downward. It is possible to open a water draining hole for eliminating.

Further, the auxiliary guide ring may be provided so as to be movable in the direction for inserting and removing the hose. In this structure, between the guide ring and the auxiliary guide ring and between the auxiliary guide ring and the base end side of the holding portion, the elasticity for biasing the guide ring and the auxiliary guide ring toward the tip side of the holding portion is provided. Means may be provided.

Further, in place of the movable guide ring, the distal end of the holding part is made into a concave part and the base end of the shower head is made into a convex part so that they can be inserted into and detached from each other, and the holding part has a hose. It has a cylindrical guide ring that can be drained by contacting the peripheral surface of the holder and the tip of which protrudes in the direction of drawing out the hose from the bottom of the recess. The drainage channel can be opened to the outside.

In this case, the holding portion may be provided with a discharge port for removing water drained by the guide ring on the surface below the lower end of the guide ring and facing downward. .

[0025]

The guide ring, which is provided in the holding portion and drains water off the surface of the hose, protrudes more than the sliding portion between the holding portion and the holding portion when the hose is pulled out. The intrusion of water into the sliding portion is prevented by the guide ring sandwiched in the sliding portion.
On the other hand, since the guide ring passing through the hose covers the entire peripheral surface of the hose, it is possible to prevent the intrusion of water traveling along the hose and passing through the guide ring toward the holding portion.
Therefore, even if the tip portion of the holding portion is exposed to water when the hose is pulled out and used, the water is prevented from entering the holding portion, and the water flowing through the hose does not enter.

In the case where the base end side of the shower head is concave and the tip end side of the holding portion is formed into a convex shape that fits into the base end of the shower head, the tip end of the holding portion is returned when the shower head is returned to the holding portion. The shower head can be easily inserted into the holding part by covering it with the posture of the shower head so that the part is hidden.

When a pushing member surrounding the hose is provided on the shower head and abutted against the guide ring, the hose is shut off from the outside when the pushing member hits the guide ring, and water from the shower surface to the hose side is shut off. No more infiltration.

Further, when the guide ring is biased by the elastic means, the pushing member can be surely abutted against the guide ring when the shower head is housed after being pulled out.

Further, in order to remove the water drained by the guide ring, if a discharge port is provided below the guide ring, the water is discharged from this discharge port.

If an auxiliary guide ring is provided in addition to the guide ring,
The surface of the hose is drained in two steps, and each of these guide rings can be drained through a drainage hole that drains the drained water.

Further, by making the auxiliary guide rings movable in the direction of putting in and out of the hose, the assembly becomes easier as compared with the structure in which they are fixed to the holding portion, and when these guide rings are biased and supported by the elastic means. , It is possible to provide a buffer even for a heavy hose insertion / removal operation.

Further, even if the guide ring is fixed to the concave portion of the holding portion and the guide ring is fixed to the concave portion of the holding portion, the distal end of the holding portion has a concave shape, and the base end of the shower head can be inserted into the convex shape. Is positioned so that the water is prevented from entering the water holding portion side by the guide ring even when the shower head is pulled out and the hose is stored. Then, the attached water that cannot pass through the guide ring is discharged from the drainage passage provided in the recess of the holding portion.

Further, even in the case of this fixed guide ring, by providing an open discharge port in the holding portion below the guide ring, the water that cannot be prevented escapes from this discharge port. be able to.

[0034]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a cutaway left side view showing a main part of a hand shower type water faucet provided with a water intrusion prevention structure of the present invention, and FIG. 2 is a front view of the main part.

In the figure, for example, the main body 1 of the faucet is fixed by aligning it with a mounting opening 51 opened in a counter 50 provided at the upper end of a cabinet of a kitchen unit.

The body 1 of the faucet is fixed at its lower end by a fixture 2 arranged on the lower surface of the counter 50. Then, inside the main body 1, a valve unit 1a in which two valve plates are arranged in a superposed manner is incorporated, and a lever 1b which is connected to one valve plate and which is capable of opening / closing a flow path of water and hot water and setting a mixing ratio It is equipped with a single lever type hot water faucet.

To the valve unit 1a, a water supply pipe 3a and a hot water supply pipe 3b, which are arranged in a cabinet, are connected through the mounting ports 51, respectively, and the water supply pipe 3a and the hot water supply pipe 3 are connected.
Similarly to c, the supply pipe 3 for feeding the water and hot water from b to the discharge end side is connected to the outflow side of the mixed water of the valve unit 1a.

On the front side of the main body 1, a sleeve 1c connected to the inside is provided as a holding portion for the shower, and a shower head 4 is provided in which the base end portion can be inserted into the sleeve 1c. Base end of shower head 4 and supply pipe 3c
Is connected by a hose 6 so that the mixed water can be discharged from the water discharge head 5 at the tip. In the illustrated embodiment, the hose 6 is made of thin metal and can be freely bent by a spirally running ridge and a recess between them.

FIG. 3 is a vertical cross-sectional view of the main part when the shower head 4 is inserted into the sleeve 1c, and FIG. 4 is an exploded perspective view of the main part.

At the front end of the sleeve 1c, a retainer 7 for inserting and holding the base end of the shower head 4 is fixed, and a guide ring 8 is provided so as to be movable coaxially with the retainer 7. Then, the flange 1c protruding toward the inner circumference on the base end side of the guide ring 8 and the sleeve 1c.
A spring 9 is provided between the guide ring 8 and -1 to urge the guide ring 8 toward the tip side of the sleeve 1c.

A flange 7a is formed at the tip of the retainer 7, and the surface of the flange 7a is abutted and fixed to the tip of the sleeve 1c. For this fixing, a hook 7b is provided on a part of the lower end side of the retainer so as to be elastically deformable, and the lower end of the hook 7b is hooked to a drain hole 1d formed on the bottom surface side of the sleeve 1c to be fixed. It can be so.
In addition, a spline 7c is formed on the inner periphery of the retainer 7 on the side of the flange 7a, and a cutout 7d that is cut in the axial direction is provided so as to substantially coincide with the surface on which the hook 7b is provided.

The guide ring 8 has a flange 8a formed on the lower end side thereof, has an outer diameter capable of freely moving inside the retainer 7, and has an inner diameter which is in close contact with the peripheral surface of the hose 6 and enables its free movement. It is what That is, the inner peripheral surface of the retainer 7 and the outer peripheral surface of the guide ring 8 form sliding surfaces in close contact with each other, and these sliding surfaces constitute the sliding portion in this embodiment. And flange 1
The spring 9 incorporated between the c-1 and 8a is butted against the packing 10 arranged along the flange 1c-1 on the sleeve 1c side.

The guide ring 8 and the packing 10 are designed so that the water adhering to the peripheral surface of the hose 6 can be wiped off to drain the water, and the drained water for discharging the wiped water to the outside of the sleeve 1c. The outlet 1e is provided slightly above the flange 1c-1.

A connector 6a is provided inside the base end of the shower head 4, a hose 6 is connected to the connector 6a, and a spline 4a that engages with a spline 7c of the retainer 7 is formed on the outer periphery of the base end and the lower surface is formed. A protrusion 4b that can be inserted into the cutout 7d is provided on the side. Then, at the base end of the shower head 4, a pusher sleeve 11 for externally inserting the hose 6a is provided.
Is coaxially connected as a pushing member. The pusher sleeve 11 is a hollow cylindrical body having an opening cross section that is substantially the same as that of the guide ring 8, and is arranged so as to project from the base end of the shower head 4.

Since the shower head 4 is provided with the projection 4b and the retainer 7 is provided with a notch 7d for inserting the same, when the shower head 4 is set on the main body 1 side, the shower head 4 is provided with the projection 4b and the notch 7d. The posture of 4 can be held correctly.

FIG. 5 is a vertical cross-sectional view of the main part when the shower head 4 is slightly pulled out from the sleeve 1c.

When the shower head 4 is pulled out from the sleeve 1c, the compressed spring 9 in the housed state shown in FIG. 3 is restored, and the guide ring 8 is moved to the tip side. Then, when the pusher sleeve 11 is completely removed, the flange 8a moves until it abuts against the end surface of the retainer 7, and at this time, the tip of the guide ring 8 is advanced to almost the same position as the tip of the retainer 7. Even when the hose 6 is further pulled out and the shower head 4 is used, the guide ring 8 is held at the position shown in FIG. 5 by the restoring force of the spring 9.

In the state shown in FIG. 5, the guide ring 8 projects further than the leading edge of the opening of the retainer 7 surrounding the guide ring 8. Therefore, even if there is water traveling through the hose 6 while the shower head 4 is being used, the guide ring 8 is positioned so as to close the opening edge on the front end side of the retainer 7 which is integrated with the sleeve 1c. Therefore, even if the tip of the sleeve 1c is covered with water, the water can be prevented from entering the sleeve 1c, and at the same time, the water traveling on the surface of the hose 6 can also be guided by the guide ring 8.
The close contact of the inner peripheral surface of the is also prevented from entering.

As described above, when the hose 6 is pulled out when the shower head 4 is used, the tip end of the guide ring 8 projects out from the opening edge located at the tip end in the axial direction of the retainer 7, so that it is in use. Even if the shower head 4 is oriented toward the sleeve 1c by mistake, the sleeve 1
It is possible to reliably prevent the water from flowing into c.

When the shower head 4 is used to return it into the sleeve 1c, the water not adhering to the surface of the hose 6 is wiped off and drained when passing through the guide ring 8. Also, the packing 10 provided at the base end of the sleeve 1c.
Similarly, the water drained and wiped off is removed from the discharge port 1e, and water is prevented from entering the cabinet side through the opening at the lower end of the main body 1.

Further, when the shower head 4 is returned to the position close to the sleeve 1c and is inserted as shown in FIG. 5, the lower end of the pusher sleeve 11 is located at the lower end of the shower head 4.
Since it protrudes below the base end of, the pusher sleeve 11 precedes and abuts against the tip of the guide ring 8 in the sleeve 1c. Therefore, the circumference of the hose 6 is closed when the pusher sleeve 11 and the movable portion 8 are joined, and water that has not adhered to the surface of the shower head 4 does not reach the surface side of the hose 6.

The non-adhering water on the surface of the shower head 4 travels on the surface of the guide ring 8 after the pusher sleeve 11 hits the guide ring 8.
Trying to penetrate into the c side. With respect to such intrusion, in the period until the projection 4b is completely fitted into the notch 7d of the retainer 7, the upper end of the guide ring 8 has the notch 7d.
It is located higher than the lower end of d. Therefore, the water transmitted to the surface side of the guide ring 8 utilizes the notch 7d to make the sleeve 1
It can be discharged outside of c.

At the time when the shower head 4 is completely housed in the sleeve 1c as shown in FIG. 3, the water to the hose 6 side is continuously supplied from the start of the butting of the pusher sleeve 11 and the guide ring 8. Does not infiltrate, and only infiltration from the surface of the pusher sleeve 11 into the sleeve 1c occurs. Such infiltrated water is discharged from the drain hole 1d, and water flowing down to the packing 10 side is also discharged from the discharge port 1d.
excluded from e. Even if the water reaches the base end of the sleeve 1c, the hose 6 is sealed by the packing 10 so that the water is reliably prevented from entering the main body 1 side.

FIG. 6 is a vertical cross-sectional view of a main part showing another example, in which an auxiliary guide ring is incorporated in addition to the guide ring 8 so that water on the surface of the hose 6 can be wiped off in two steps. is there. The same members as those in the previous example are designated by common reference numerals, and detailed description thereof will be omitted.

In the sleeve 1c, a hollow cylindrical housing 12 which is integrally joined to the retainer 7 fixed at the tip thereof is incorporated. Then, drainage holes 1f and 1g are provided at two positions on the lower surface of the sleeve 1c, respectively, and the housing 12 is also provided with discharge ports 12a and 12b at positions aligned with these drainage holes 1f and 1g. Lower outlet 12
B is provided with a hook 12c that engages with the opening edge of the drain hole 1g, and thereby the housing 12 is fixed in the sleeve 1c together with the retainer 7.

The guide ring 8 coaxially incorporated in the housing 12 has the same structure as that of the previous example, and the auxiliary guide ring 13 is provided between the lower end of the guide ring 8 and the bottom side of the housing 12. Incorporate. The auxiliary guide ring 13 is also movable in the housing 12 and has the same inner diameter as the guide ring 8 so that the surface of the hose 6 can be wiped off. And between the guide ring 8 and the housing 12
The springs 14a and 14b are incorporated between the bottom side and the bottom side, respectively.

The springs 14a and 14b are common parts having the same spring constant, and when the shower head 4 is pulled out from the sleeve 1c and the pusher sleeve 11 separates from the tip of the guide ring 8, the guide ring 8 and the guide ring 8 are moved to the positions shown in FIG. It is configured such that the auxiliary guide ring 13 is located. That is, the guide ring 8 has its flange 8a abutting against the lower end of the retainer 7 and its tip advances to the same position as the tip of this retainer 7, while the auxiliary guide ring 13 has two discharge ports 12
It can be held between a and 12b.

Even in such a structure, when the shower head 4 is pulled out and used as shown in FIG. 7, the tip of the guide ring 8 projects more than the tip of the retainer 7 as in the previous example. Even if water is applied to the tip of the sleeve 1c when using the
It is possible to prevent water from entering the inside, and at the same time, to prevent water from entering from the surface of the hose 6 along the inner circumference of the retainer 7.

The water that has propagated on the surface of the hose 6 is wiped off by the guide ring 8 and the auxiliary guide ring 13, respectively, and is removed from the water drain holes 1f and 1g, respectively. And when the shower head 4 is put into the sleeve 1c,
As in the previous example, the pusher sleeve 11 first comes into contact with the tip of the guide ring 8 and closes the hose 6, so that the water transmitted from the surface of the shower head 4 is prevented from entering the hose 6 side.

Further, when the shower head 4 is being used, the water flowing through the hose 6 is discharged from the inside of the housing 12 into the water drain hole 1.
It is discharged from f and 1 g, and is also drained after the shower head 4 is stored. Since the water is removed in two stages in this way, even if the inner diameters of the water drain holes 1f and 1g are made small, quick drainage is possible, and a product that does not impair the appearance of the sleeve 1c can be obtained.

Further, in the illustrated example, in order to remove water that has permeated from the bottom of the housing 12, a small hole 1c-2 is formed in the base portion of the sleeve 1c as shown in FIG.
The small hole 1c-2 is located at the lowest position in the sleeve 1c and has a slightly higher distance from the main body 1 side.
Since it is set to 3, the water coming out of the housing 12 can be temporarily collected so as to be drained from the small hole 1c-2. Therefore, even if the wiping of water by the guide ring 8 and the auxiliary guide ring 13 is insufficient, it is possible to prevent water from entering the lower end side of the main body 1.

In addition to preventing water from entering as described above, a structure suitable for moving and connecting the hose 6 can be added, and the water discharge head 5 of the shower head 4 has a structure with improved usability. And these are described below.

Since the hose 6 is made of a thin metal material, for example, at the boundary between the main body 1 and the sleeve 1c,
As shown in FIG. 6, when moving while rubbing the upper end of the shielding wall 1c-3, sound is likely to be generated due to the unevenness of the surface of the hose 6. Further, since the hose 6 is repeatedly pulled out and stored many times, the surface of the hose 6 may be worn or deformed.

On the other hand, as shown in FIG. 6, a guide 15 is provided inside the main body 1 at a portion where the hose 6 bends downward from the sleeve 1c. As shown in FIG. 8, this guide 15 has a semi-circular planar shape, and is shown in FIG.
Is assembled in the main body 1 such that the right end side of is aligned with the axis of the sleeve 1c. And hose 6
The guide 15 is made of a synthetic resin such as polyacetal, for example, in order to suppress contact noise and abrasion.

By providing such a guide 15, even if the hose 6 having irregularities on its surface frequently moves, there is no contact between metals, so that the generation of sound can be suppressed, and the hose 6 itself and the main body can be suppressed. 1 is prevented from being worn or deformed.

As described above, the hose 6 is a thin-walled metal tube having a convex-concave surface formed by spirally running the ridges so as to have flexibility. In a metal pipe with such spiral protrusions, the outer diameter of the pipe becomes smaller when an acting force that twists the pipe around its axis acts due to internal stress during processing. There is.

On the other hand, for example, the connection of the hose 6 to the connector 6a shown in FIG. 3 is preferably provided with the structure shown in FIG.

In this example, one end of the hose 6 is inserted into a cylindrical socket 6b forming a part of the connector 6a,
Further, a cylindrical ring 6c is fitted in the hose 6. And when joining to the socket 6b,
The ring 6c is previously inserted into the end of the hose 6, and the hose 6 is inserted into the socket 6b. At the time of this insertion, the peripheral surface of the projection of the hose 6 and the inner periphery of the insertion portion of the socket 6b are bonded with an adhesive so that the hose 6 is not mechanically twisted.

With such a connecting structure of the hose 6, shrinkage of the outer diameter due to twisting of the hose 6 is prevented, and the ring 6 is prevented.
By lining the inside with c, the socket 6
An internal flow path is secured at the joint with b, and a flow path structure that does not affect water flow is obtained.

FIG. 10 is a vertical cross-sectional view of the main part of an example in which the tip of the sleeve 1c has a convex shape and the base end of the shower head 4 has a concave shape that can be inserted into the sleeve 1c. Note that this example is a modification of that shown in FIG. 5, and the same members are designated by common reference numerals.

In the figure, the outer diameter of the tip of the sleeve 1c is made slightly smaller to form a spline 1h on its peripheral surface,
When the shower head 4 is removed, the guide ring 8 is held by the spring 9 at a position protruding from the tip of the sleeve 1c.

On the other hand, the base end portion of the shower head 4 has a cylindrical skirt portion 4c which covers the tip portion of the sleeve 1c.
Is formed on the inner circumference of the spline 1 on the sleeve 1c side.
A spline 4d that can be engaged with h is provided. Then, as shown in the drawing, the tip of the guide ring 8 protruding outward abuts on the annular step portion 4e formed at the end portion of the skirt portion 4c, and the shower head 4 is attached to the sleeve 1c in the same manner as shown in FIG. This annular step portion 4e can push the guide ring 8 into the sleeve 1c when returning to.

Even in such a structure, since the guide ring 8 projects from the tip of the sleeve 1c as shown in the drawing while the shower head 4 is being used, the space between the sleeve 1c and the guide ring 8 and The guide ring 8 and the hose 6 are always closed, and the sleeve 1
The intrusion of water into c is reliably prevented. Also, hose 6
The water traveling along is also wiped off by the guide ring 8 and drained,
Even if water enters the sleeve 1c, it is discharged from the discharge port 1e.

When returning the shower head 4 to the sleeve 1c, the guide ring 8 moves while sliding on the inner peripheral wall of the sleeve 1c, and at the same time, the spline 4d of the shower head 4 covers the spline 1h on the sleeve 1c side. Move like. At this time, as shown in FIG.
In (a), it was difficult to handle due to the swinging around of the hose 72, but even if the hose 6 swings around in the same way, this swinging is absorbed by the guide ring 8 which moves while being held by the sleeve 1c. , Shower head 4
Transmission to the side is blocked. Therefore, even with a structure in which the base end of the shower head 4 is covered on the outside of the tip of the sleeve 1c, the operability is improved without feeling the difficulty of use.

FIG. 11 is a longitudinal sectional view of the essential parts showing an embodiment of the invention according to claims 9 and 10 of the present application.

This example is different from the example shown in FIG. 10 only in that the guide ring 8 is fixed and the concavo-convex joint between the sleeve 1c and the shower head 4 is reversed, and the same members are used. Are designated by common symbols.

A spline 1i is formed on the inner circumference on the tip side of the sleeve 1c, and a fixing seat 1j for fixing the guide ring 8 is provided on the lower side portion connected to the spline 1i. In the illustrated example, the guide ring 8 has a flange 8a formed on the base end side similarly to the one described above, and is firmly fitted and fixed to the fixed seat 1j by using this as a stopper, and its tip is on the front end side of the fixed seat 1j. Projects slightly above the end face of the. Then, a drain port 1k is opened as a drainage channel at the end surface of the fixed seat 1j on the front end side where the sleeve 1c faces downward.

At the base end portion of the shower head 4, a spline 4g is formed on the outer peripheral surface of the joint seat 4f which can be inserted into the tip end portion of the sleeve 1c. The protruding length of the joint seat 4f is such that when it is inserted into the spline 1i, the guide ring 8
Do not hit the tip of.

Also in this example, even if the tip portion of the sleeve 1c is exposed to water when the shower head 4 is pulled out and used, the presence of the guide ring 8 protruding from the tip surface of the fixed seat 1j causes the sleeve 1c to be exposed. Ingress of water is prevented. When the hose 6 is stored after the shower head 4 is pulled out and used, the guide ring 8 can similarly drain the hose 6 so that the wiped water can be discharged from the tip surface of the fixed seat 1j. It is discharged through 1k.

As described above, even when the sleeve 1c side is concave, intrusion of water as shown in the example of FIG. 16 (b) is reliably prevented, and the hose 6 is quickly taken in and out.

Although FIG. 10 and FIG. 11 show only the main part thereof, a small hole 1c-2 for drainage and a shielding wall 1c-3 are provided at the base of the sleeve 1c, and movement of the hose 6 is performed. It is needless to say that the guide 15 or the like for reducing the resistance may be provided.

Here, the water discharge head 5 of the shower head 4
Is the one that can be used by switching between rectification water discharge and foam water discharge. The details are shown in FIGS. 12 to 15. FIG.
2 is a vertical sectional view of the water discharge head 5, FIG. 13 is a horizontal sectional view, and FIG.
4 is a vertical sectional view taken along the line BB of FIG. 13, and FIG. 15 is a bottom view.

A water sprinkling plate 20 is provided at the lower end of the water spouting head 5, and a straightening water spouting port 21 is provided in the center of the water sprinkling plate 20, and a plurality of foam spouting ports 22 and air for foaming are provided around it. An intake hole 23 for suction is provided. Inside the water discharge head 5 facing the water spray plate 20, the rectification chamber 5
a and the foam chamber 5b. A first inflow port 5c and a second inflow port 5d, which communicate with the rectification chamber 5a and the foam chamber 5b, are provided at the lower ends thereof as a communication path with the upstream side.

The flow straightening chamber 5a has a flow path directly connected to the flow straightening water discharge port 21 side, and a swirl chamber 22a for swirling the flow is provided between the foam chamber 5b and the foam water discharge port 22. The swirl chamber 22a is capable of discharging an inverted conical water film at a high speed toward the foam spout 22 side from a hole 22b formed in the center of the lower surface of the swirl chamber 22a. It is possible to use the internal decompression to suck air from the air intake holes 23 and make water into foam.

Further, the switching operation of the rectified water discharge and the foamed water discharge is performed by switching the rectified water discharge of the supply water and the spray water discharge by contacting with and separating from a flat seating surface formed around the first and second inlets 5c and 5d. It is performed by a switching plate 24 which can be rotated. The switching plate 24 has four openings 24a opened at a pitch of 90 ° of the central angle, and two of these openings 24a are communicated with the first or second outlets 5c, 5d by changing their rotational postures. With this, it is possible to switch the flow path to the rectification side and the foam side.

In order to rotate the switching plate 24 as described above, the operation button 2 is provided at the upper end on the front surface of the water discharge head 5.
5, a switching plate 24 is connected to this via a rod 25a and a cam shaft 25b, and the operation button 25 is biased outward by a spring 25c.

A guide pin 26 is connected to the cam shaft 25b so that the operation button 25 can be rotated 90 ° with the male once.
Due to the engagement relationship between the guide pin 26 and the cam groove provided on the circumferential surface of the cam shaft 25b, the switching plate 24 can be rotated by 90 ° by operating the operation button 25. Therefore, it is possible to switch between the concentrated rectification water discharge from the rectification water discharge port 21 and the spray water discharge of the foam water from the foam water discharge port 22.

[0088]

According to the present invention, even if water is applied to the tip portion of the holding portion or water is attached to the surface of the hose, it is possible to prevent water from entering the holding portion by providing the guide ring. Whether the shower head is used or returned to the holding portion side, it is possible to reliably prevent water from entering the water holding portion. Therefore, during the period from the time when the shower head is pulled out and used to the time when it is returned to the holding part, not only the water traveling on the surface of the hose but also the case where the tip of the holding part is directly exposed to water There is no entry of water inside,
For example, when installing in a kitchen sink, the problem of moisture inside the cabinet is solved.

Further, in the case where the tip of the holding portion is concave and the base end of the shower head is convex, even if there is a gap between the hose and the holding portion, the drainage by the guide ring is held and at the same time the holding portion is held. You can quickly insert the shower head into.

If the guide ring is movable, the resistance against insertion of the shower and movement of the hose is reduced, and the insertion / removal operation can be performed lightly.

Further, by urging the guide ring so as to be movable by the elastic means, it is possible to buffer the guide ring even when the hose is violently moved, and it is possible to suppress damage to members and noise.

If an auxiliary guide ring is provided in addition to the guide ring,
Since the surface of the hose is drained in two steps, the water adhering to the hose can be removed more effectively.

Further, by making the auxiliary guide ring movable in the direction for taking in and out the hose, the assembling becomes easier as compared with the structure in which it is fixed to the holding portion.

Further, even when the guide ring and the auxiliary guide ring are biased and supported by the elastic means,
A similar cushion can be provided for the hose removal / insertion operation, and the durability is further improved.

Even when the guide ring is fixed to the holding portion, water is prevented from entering the holding portion side while the hose is being pulled out and stored, and the guide ring fixing structure is sufficient. Therefore, the structure itself is simple, and maintenance and inspection is not complicated.

[Brief description of drawings]

FIG. 1 is a partially cutaway left side view showing a single lever type hot and cold water mixing faucet provided with a water intrusion prevention structure of the present invention.

FIG. 2 is a front vertical sectional view showing a main part of the hot and cold water mixing faucet of FIG.

FIG. 3 is a vertical cross-sectional view of a main part when the shower head is housed in a sleeve.

FIG. 4 is an exploded perspective view showing a connecting structure of a shower head, a retainer and a guide ring.

FIG. 5 is a vertical cross-sectional view of a main part when the shower head is pulled out from the sleeve.

FIG. 6 is a vertical cross-sectional view of a main part when a shower head is housed in a sleeve, which is an example of a two-stage water draining structure including an auxiliary guide ring.

7 is a vertical cross-sectional view of a main part when the shower head is pulled out in FIG.

FIG. 8 is a guide for guiding the hose in the body of the faucet, (a) of which is a plan view thereof and (b) of which is a view taken along the line AA of (a) of the same figure. FIG.

FIG. 9 is a vertical cross-sectional view of a main part showing details of a connecting structure for connecting a hose to a socket by adhesion.

FIG. 10 is a vertical cross-sectional view of a main part showing an example in which the guide ring is movable and the sleeve side is convex and the shower head side is concave.

FIG. 11 is a vertical cross-sectional view of a main part showing an example in which the guide ring is fixed and the sleeve side is concave and the shower head side is convex.

FIG. 12 is a vertical cross-sectional view showing a main part of a water discharge head of a shower head.

13 is a cross-sectional view of the water discharge head of the example of FIG. 10 taken along a plane including the axis of the cam shaft.

14 is a vertical sectional view taken along the line BB of FIG.

FIG. 15 is a bottom view of the water discharge head.

16A and 16B are conventional examples, in which FIG. 16A shows an example in which the holder side is convex and the showerhead side is concave, and FIG. 16B shows the holder side is concave and the showerhead side is concave. An example of a convex shape will be shown.

[Explanation of symbols]

 1 main body 1c sleeve (holding part) 1d drainage hole 1e discharge port 1f drainage hole 1g drainage hole 1k discharge port (drainage channel) 2 fixture 3a water supply pipe 3b hot water supply pipe 3c supply pipe 4 shower head 4b protrusion 5 water discharge Head 6 Hose 7 Retainer 7d Notch 8 Guide ring 9 Spring 10 Packing 11 Pusher sleeve 12 Housing 12a Discharge port 12b Discharge port 13 Auxiliary guide ring 14a Spring 14b Spring 15 Guide 50 Counter 51 mounting port

Claims (10)

[Claims] 1. A water faucet which is connected to a water supply source side through a hose connected to the base end of the shower head in a tubular holding portion in which the base end of the shower head can be inserted and removed, wherein the hose is inserted. A period in which a guide ring having an annular cross-section capable of wiping the outer peripheral surface of the hose is slidable on the inner peripheral surface of the holding portion so as to be movable in the loading / unloading direction of the hose, and the shower head is pulled out from the holding portion. A water intrusion prevention structure for a water faucet provided with a shearing device capable of holding the tip of the guide ring at a position projecting outside of a sliding portion with the holding portion. 2. A pushing member having a cross-sectional shape surrounding the hose and capable of being inserted into the holding portion is provided at a base end portion of the shower head, and the pushing member is projected to a tip end of the guide ring. A structure for preventing water intrusion in a faucet provided with the shower device according to claim 1, which can be applied. 3. The water intrusion prevention structure for a faucet provided with a shower device according to claim 1, wherein the guide ring is biased toward the distal end side of the holding portion by elastic means. 4. The holding portion is provided with a discharge port for removing water drained by the guide ring, on a surface which is lower than a lower end of the guide ring or a lower end of a lower limit position and faces downward. A water intrusion prevention structure for a faucet including the shower device according to claim 1. 5. The auxiliary guide ring, which is capable of draining water in contact with the peripheral surface of the hose, is provided at a position spaced apart from the guide ring on the base end side of the holding portion and spaced apart from the guide ring. A structure for preventing water intrusion in a faucet provided with the shower device according to 4. 6. The water drainage is performed by the guide ring and the auxiliary guide ring on a surface between the guide ring and the auxiliary guide ring and at a position lower than the auxiliary guide ring and facing the holding portion, respectively. 6. A water intrusion prevention structure for a faucet provided with a shower device according to claim 5, wherein a water drain hole for removing the water is formed. 7. A water intrusion prevention structure for a faucet provided with a shower device according to claim 5, wherein the auxiliary guide ring is provided so as to be movable in a direction for taking in and out the hose. 8. The guide ring and the auxiliary guide ring are attached to the tip side of the holding portion between the guide ring and the auxiliary guide ring and between the auxiliary guide ring and the base end side of the holding portion. 8. A water intrusion prevention structure for a faucet including a shower device according to claim 5, further comprising elastic means for urging. 9. A water faucet connected to a water supply source side through a hose connected to the base end of the shower head in a tubular holding part into which the base end of the shower head can be inserted and removed, and the tip of the holding part is The concave portion and the base end of the shower head are convex portions to be inserted into each other and have a detachable connection relation,
The holding portion is provided with a tubular guide ring that is capable of draining water in contact with the peripheral surface of the hose and has its tip protruding from the bottom of the recess in the withdrawing direction of the hose. A water ingress prevention structure in a faucet equipped with a shower device which opens a water drainage passage for discharging water that has infiltrated into the outer periphery of the water. 10. The holding part has a discharge port for removing water drained by the guide ring, which is formed on a surface of the holding part which is below a lower end of the guide ring and faces downward. Water intrusion prevention structure in a faucet equipped with a shower device.