JP2000217727A - Circulation mouthpiece with bathtub washing function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a circulation mouthpiece with bathtub washing function with which the disadvantage of labor or cost at the time of molding is improved by reducing the kinds of metal dies at the time of molding by integrating dedicated members for washing while centralizing them to one mouthpiece and a piping structure and a piping construction are simplified by collecting washing water through a circulation mouthpiece attached to a bathtub. SOLUTION: This mouthpiece is provided with a double pipe member 1 with which a water feeding path 1a and a water returning path 1b are formed inside, a circulation port cover for forming a water feeding path A to a bathtub 2 by communicating a water discharge path to the water feeding path while forming the water discharge path 4a and a water sucking path 4b inside and for forming a water collecting path B from the bathtub by communicating the water sucking path to the water returning path, a water sucking hose 60 extended from the water sucking path almost to the base of the bathtub, a strainer 64 provided to be attached to/detached from the water sucking path, and a nozzle member 5 freely rotatably attached to the circulation port cover in the state of communicating a water receiving part 52 formed inside to the water feeding path while forming water jet holes 56 and 58 from the water receiving part to the inside of the bathtub.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulating base having a bathtub cleaning function having a function of automatically cleaning a bathtub.

[0002]

2. Description of the Related Art The applicant has already proposed a bath tub cleaning method in Japanese Patent Application No. 10-56027 as a prior art of the present application. In this prior bath tub cleaning method, a circulating base having a two-system water path of a water supply path to the bath tub and a recovery water path from the bath tub is provided on the bath tub wall, and a cleaning fountain base is provided above the circulation base. Had become.

Therefore, when the bathtub is washed, the washing water is spouted from the washing fountain nozzle, and the jetted washing water is collected in the collecting channel of the circulating nozzle. The same applies to the use of the washing fountain nozzle and the circulation water channel of the circulation nozzle when the bathtub is rinsed. or,
When filling the bathtub, use the water supply channel of the circulation base,
At the time of reheating, hot water was circulated using the water supply channel and recovery channel of the circulation base. As described above, conventionally, when cleaning a bathtub, two bases, a cleaning fountain base and a circulation base, are required.

[0004] Conventionally, a device described in Utility Model Registration No. 2584902 has been known as a bathtub cleaning device. In this prior art, the cleaning water is collected by a return pipe connected to a drain pipe of a bathtub.

[0005]

However, in the prior bath tub cleaning method, when the bath tub is cleaned as described above,
Since two bases, a cleaning fountain base and a circulation base, are required, it is necessary to incorporate dedicated members for cleaning into the cleaning fountain base and the circulation base, respectively. In this case, since both the cleaning fountain nozzle and the circulation nozzle have a special structure, the number of types of molds during molding increases accordingly, leaving a problem that the molding time and labor are disadvantageous.

Further, in the conventional bathtub cleaning apparatus, since the recovery of the washing water is performed by a return pipe connected to a drain pipe of the bathtub, the return pipe is connected to a drain pipe below the bathtub, or a drain valve is provided in the drain pipe. Such a structure is required. For this reason, the piping of the return pipe must be performed on the drainage pipe behind the bottom of the bathtub, which requires time and effort, and the need to remove the bathtub from the existing bathtub. There was a problem that there were many disadvantages in terms of piping construction.

The present invention has been made in order to solve the above-mentioned problems, and has two systems of a water supply channel to a bathtub for jetting out washing water and a recovery waterway for collecting washing water. By forming a circulating base having a dedicated member for cleaning in a single base, it is possible to reduce the number of types of dies at the time of molding and to improve the disadvantages in terms of labor and cost during molding. To do. It is another object of the present invention to provide a circulating base with a bathtub cleaning function that facilitates the piping structure and piping by collecting the washing water through a circulating base attached to the bathtub.

[0008]

In order to solve the above-mentioned problems, the present invention provides a circulation base having a bathtub cleaning function, comprising an inner pipe having a water supply passage formed therein and an outer pipe having a water return passage formed therein. And a water discharge passage and a water suction passage are formed therein, the water discharge passage communicates with the water supply passage to form a water supply passage to the bathtub, and the water suction passage communicates with the water return passage. A circulation port cover fixed to the double pipe member in a state of forming a recovery channel from the bathtub, a water absorption hose extending from the water absorption channel to near the bottom of the bathtub, and detachably provided in the water absorption channel. A strainer and a nozzle member which is rotatably attached to a circulation port cover in a state where a water receiving portion formed therein communicates with the water supply passage, and has a fountain hole formed from the water receiving portion toward the inside of the bathtub. Configuration.

[0009] In the circulation base with a bathtub cleaning function of the present invention,
When the bathtub is washed, the washing water is spouted from the water supply passage into the bathtub through the fountain hole of the nozzle member, and the washing water in the bathtub is collected from the water-absorbing hose through the collecting water passage. As described above, the fountain and the washing water can be collected and recovered by one base. In connection with the recovery of the washing water, the present invention is provided with the water absorbing hose, so that the washing water collected at the bottom of the bathtub can be sucked up to the water absorbing passage by the water absorbing hose. Thereby, the washing water can be collected through the base. Therefore, compared with the prior art in which a return pipe is connected to a drain pipe of a bathtub to collect washing water, a structure in which a return pipe is connected to a drain pipe below the bathtub or a drain valve is provided in the drain pipe is unnecessary. This further simplifies the piping structure and piping construction of the hot water supply device.

Further, at the time of recovery of the washing water, dust and the like contained in the washing water can be removed by the strainer. Since the strainer is detachable, dust and the like adhering to the strainer can be removed by removing the dust from the water suction passage.

For the purpose of supplying water when filling a bathtub with water or reheating, for example, a recovery tap for reheating is provided according to the present invention while a taphole dedicated to supplying water is provided above the circulation cap of the present invention. You may make it use the collection waterway provided in the circulation base. In this case, the water supply channel provided in the circulation base of the present invention is dedicated to jetting of the cleaning water, and the recovery channel is used for recovery of the cleaning water and recovery at the time of reheating. Further, it is also possible to use the water supply channel and the recovery water channel provided in the circulation base of the present invention for all the water supply and recovery at the time of hot water filling and reheating. In this case, it is sufficient to attach only the circulation base of the present invention to the bathtub.

Further, in the present invention, there is an aspect (step 2) in which a step is provided at the lower end of the water-absorbing hose to hold a water-absorbing gap between the lower end of the water-absorbing hose and the bottom of the bathtub. By providing a step at the lower end of the water-absorbing hose in this way, it is possible to prevent poor suction due to the lower end of the water-absorbing hose sticking to the bottom surface of the bathtub, and without strictly dimensioning the mounting position of the circulation mouthpiece, Between the lower end of the tub and the bottom of the bathtub.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a circulation base N having a bathtub cleaning function according to an embodiment of the present invention. FIG. 2 is a cutaway front view showing the circulation base N.

In FIG. 1, reference numeral 1 denotes a double pipe member having an inner pipe 10 having a water supply passage 1a formed therein and an outer pipe 11 having a water return passage 1b formed therein. An extension 12 is formed at an outer end of the inner tube 10, and a fitting receiving portion 13 is formed at an inner end. A screw portion 14 is formed at an outer end of the outer tube 11, and a flange 16 having an annular projection is formed at an inner end. The double tube member 1 fits the outer tube 11 into the mounting hole 21 formed in the bathtub wall 20 from inside the bathtub 2, and sandwiches the bathtub wall 20 with the connection fitting 3. It is attached to the bathtub wall 20.

The connection fitting 3 is an outer pipe 1 of the double pipe member 1.
The connection outer pipe 30 screwed to the threaded portion 14 formed in 1 and the connection inner pipe 31 fitted to the extension 12 of the inner pipe 10 form a double pipe structure. An outer water passage 3b communicating with the water return passage 1b of the double tube member 1 is formed inside the connection outer tube 30, and an inner water passage communicating with the water passage 1a of the double tube member 1 inside the connection inner tube 31. 3a are formed.

A circulation port cover 4 is fixed to the double pipe member 1. The circulation port cover 4 has a main body cover portion 42 in which a projecting cylindrical portion 40 formed at an outer end portion is fitted to the fitting receiving portion 13 of the double pipe member 1 and the annular groove portion 41 is fitted to the annular convex portion 15. And the screw 4
3 is formed by a cylindrical portion 44 screwed together. in this case,
The water discharge passage 4 is provided inside the protruding cylindrical portion 40 to the cylindrical portion 44.
a, and the water discharge passage 4a and the water supply passage 1a communicate with each other to form a water supply passage A to the bathtub 2. Further, a lower extension 45 is formed in the main body cover portion 42, and a water absorption passage 4b is formed inside the lower extension 45, and the water absorption passage 4b is formed.
b and the return channel 1b communicate with each other to collect water from the bathtub 2
Are formed. The water discharge passage 4 is provided in the cylindrical portion 44.
A water receiving plate 44a is provided so as to oppose a, and the direction of the water is changed to the radial direction so that the water discharged from the water outlet 4a by the water receiving plate 44a does not directly hit the nozzle cover 51. .

A hose connection hole 46 is formed on one side of the lower extension 45, and a water absorption hose 60 communicating with the water absorption passage 4b in the lower extension 45 through the hose connection hole 46 is connected to the bathtub 2. Are connected so as to extend to the vicinity of the bottom. A step 62 projects from the bottom surface of the water inlet member 61 fitted to the lower end of the water absorption hose 60, and the step 62 allows a water absorption gap 63 to be maintained between the water absorption port member 61 and the bathtub bottom surface 20a.

On the other side of the lower extension 45, as shown in FIG. 2 and FIG.
Is formed, and a cylindrical strainer 64 is extended through the lower extension 45 through the strainer mounting hole 47.
It is configured to be detachably attached to the water suction passage 4b inside. The strainer assembling hole 47 is formed coaxially with the hose connection hole 46, and the tip of the strainer 64 covers the hose connection hole 46 when the strainer 64 is attached. A cap 49 is removably attached to the outer periphery of the cylindrical portion 48. A base end of a cylindrical frame 64a in which a frame material is framed in a cylindrical shape is fitted into the inner rear end of the cap 49. The strainer 64 is detachably housed inside the frame 64a from the front end thereof, or the cylindrical frame 64a and the strainer 64 are integrally molded. The cylindrical portion 48 and the cap 49 are sealed so as to be airtight in the fitted state. The sealing structure in this case is shown in FIG.
As shown in FIG. 2 (YY sectional view), an O-ring 49 a is provided between the tip of the cylindrical portion 48 and the inner periphery of the cap 49, and a locking projection 48 a is formed on the outer peripheral surface of the cylindrical portion 48. At the same time, the locking projection 49 is also provided on the edge of the other cap 49.
b is provided. Then, with the cap lever 49c provided on the cap 49 being in the position indicated by the solid line in FIG. 4, the cap 49 is fitted to the cylindrical portion 48.
Is rotated, the locking projections 48a and 49b are engaged with each other, and the cylindrical portion 48 and the cap 49 are fitted airtightly via the O-ring 49a.

A nozzle member 5 is rotatably attached to the circulation port cover 4. This nozzle member 5
Is formed by a main body nozzle 50 and a nozzle cover 51, and a water receiving portion 52 communicating with the water discharge passage 4a is formed therein. The main body nozzle 50 includes the cylindrical portion 4.
A support cylinder 53 is rotatably fitted on the outer periphery of the support cylinder 4, and a large-diameter portion 54 is formed from the support cylinder 53 in an outer peripheral direction, and the nozzle cover 51 is screwed to the large-diameter portion 54. The water receiving portion 52 is formed by removably screwing in. In the large diameter portion 54, two fountain holes 56, 56 opened in a tangential direction are formed in opposite directions. Further, as shown in FIG. 5, the nozzle cover 51 has a valley portion 51a formed at the center of the inner surface, and finger-recessed recesses 51b, 51b formed at both sides of the outer surface. The thick portions 51c, 51c formed at the boundary between the valley portion 51a and the finger hook concave portion 51b have four
A total of eight fountain holes 58, 58 are formed so as to open obliquely at different angles. When the nozzle member 5 is formed by detachably screwing the nozzle cover 51 to the main body nozzle 50, the inside of the nozzle member 5 can be cleaned by removing the nozzle cover 51, which is preferable in terms of maintenance.

In the drawing, reference numeral 42a denotes a chain locking member, which protrudes from one side surface of the main body cover portion 42. The chain locking member 42a locks the ball chain 22 for connecting the bathtub drain plug so as to pass around the nozzle member 5, whereby the ball chain 22 is caught by the rotation of the nozzle member 5. Thus, troubles such as hindering rotation of the nozzle member 5 and generating noise can be prevented.
As long as the chain locking member 42a can be locked so that the ball chain 22 passes through the nozzle member 5, the number, shape, and location of the chain locking member 42a (for example, the outer surface of the cap 49) can be appropriately determined. .

Next, FIG. 6 shows a first example using the circulation base N.
It is explanatory drawing which shows the water heater 7. In the first hot water supply device 7, a circulation base M dedicated to reheating is provided above the circulation base N.

The first hot water supply device 7 includes a return pipe 71 connected to a suction side of a self-priming circulating pump 70, an outgoing pipe 72 connected to a discharge side, and a bath water provided in the middle of the outgoing pipe 72. A heater 73 and a four-way switching valve 74, and a reheating pipe 75 and a drain pipe 76 connected to the four-way switching valve 74 are provided. Then, the base end of the return pipe 71 is
, The tip of the outgoing pipe 72 is connected to the inner waterway 3a of the circulation mouthpiece N, the tip of the reheating pipe 75 is connected to the circulation mouthpiece M, and the tip of the drain pipe 76 is opened. I have. A water supply pipe 81 from a hot water supply heater 80 is connected in the middle of the outgoing pipe 72.
And a water supply pipe 83 branching from the tap 82 to the faucet 82 is provided. In the middle of the water injection pipe 81, a hot water filling electromagnetic valve 84 is provided.
And a check valve 85. In the figure, 78, 7
Reference numerals 9 and 86 denote hot water temperature sensors, respectively, for detecting the hot water temperature in the pipe, and when the temperature is lower than the set temperature, the hot water temperature is raised to the set temperature by heaters 73 and 80 via a control device (not shown). Things.

In the first hot water supply apparatus 7, when the bathtub 2 is washed, the four-way switching valve 74 is switched to the state shown in FIG.
Then, by the self-priming circulation pump 70, the washing water mixed with the detergent in the bathtub 2 in advance from the water absorption hose 60 of the circulation base N through the recovery water passage B, the return pipe 71, the going pipe 72, and the circulation base N again. The circulation is performed such that the gas flows into the water supply passage A and is jetted from the fountain holes 56 and 58 of the nozzle member 5 into the bathtub 2. At this time, the nozzle member 5 rotates by the reaction force accompanying the injection from the fountain hole 56, and the fountain hole 56 and the fountain hole 58
The washing water is ejected while swirling.
When rinsing after washing, the four-way switching valve 74 is switched to the state (b) to discharge the washing water from the drain pipe 76, and then the four-way switching valve 74 is returned to the state (a) and The water from the water pipe 81 is circulated, and this is repeated several times.

Next, when filling the bathtub 2, the four-way switching valve 74 is switched to the state (a) or (c). Then, the hot water heated by the hot water supply heater 80 is supplied from the water injection pipe 81 to the circulation pipe M through the outflow pipe 72 and the tapping pipe 75, and is discharged into the bathtub 2. Also, at the time of reheating, the four-way switching valve 74 is similarly switched to the state shown in FIG.
The circulation in which the hot water in the bathtub 2 is discharged from the circulation mouthpiece M into the bathtub 2 through the return pipe 71, the outgoing pipe 72, and the reheating pipe 75 from the water suction hose 60 through the recovery water channel B, and the reheating pipe 75 is repeated.

Therefore, in the first hot water supply apparatus 7, since the circulation mouthpiece M is provided, the water supply path A of the circulation mouthpiece N is exclusively used for jetting, and the recovery waterway B is used for recovery of washing water and recovery during reheating. Becomes

FIG. 7 shows a second example using the circulation base N.
It is explanatory drawing which shows the water heater 9. In the second hot water supply device 9, only the circulation base N is used.

Since the second hot water supply device 9 does not have the circulation base M of the first hot water supply device 7, the reheating pipe 75
And a four-way switching valve 74 is omitted, while a three-way switching valve 77 connected to a drain pipe 76 is provided in the middle of the return pipe 71. Since other configurations are the same as those of the first hot water supply device 7, the same reference numerals are used in the drawings to omit the description.

In the second hot water supply device 9, washing, rinsing,
All of the hot water and reheating are performed using the water supply channel A and the recovery water channel B of the circulation base N. In this case, at the time of tapping at the time of hot water filling and reheating, the hot water is spouted from the fountain holes 56 and 58 while rotating by the rotation of the nozzle member 5. In order to prevent this, the capacity of the self-priming circulating pump 70 is varied, or a bypass pipe is provided between the going pipe 72 and the return pipe 71 to control the opening and closing of this bypass pipe. A throttle valve is provided in the middle of 72, and the pipe resistance is varied by the throttle valve.

In the circulating base N constructed and used as described above, when the bathtub 2 is washed, the washing water is spouted from the water supply channel A into the bathtub 2 through the fountain holes 56 and 58 of the nozzle member 5, and The washing water in the bathtub 2 is collected through the collecting channel B. As described above, the washing water can be spouted and collected by one base N.

In connection with the recovery of the washing water, since the water absorbing hose 60 is provided, the washing water collected at the bottom of the bathtub can be sucked up to the water absorbing passage 4b by the water absorbing hose 60. As a result, the washing water can be collected through the circulation base N, and unlike the related art, there is no need to connect the return pipe to the drain pipe of the bathtub to collect the washing water. A structure with poor workability such as piping to a drain pipe below or providing a drain valve in the drain pipe can be eliminated, and the piping structure and piping construction of the water heater can be simplified.

Further, at the time of collecting the washing water, dust and the like contained in the washing water can be removed by the strainer 64. Since the strainer 64 is detachable, dust and the like attached to the strainer 64 can be removed by removing the strainer 64 from the water suction passage 4b. or,
A cylindrical frame 64 provided with the strainer 64 on the cap 49
Since it is housed inside and assembled to the water suction passage 4b, the assembling work is simplified, and since the cap 49 is airtightly attached by the seal structure, malfunctions due to air suction can be prevented.

The bottom of the bathtub 2
Step 62 for holding a water absorption gap 63 between the step 62
Is provided so that the lower end of the water-absorbing hose 60 can be prevented from being sucked up poorly due to the lower end of the water-absorbing hose 60 sticking to the bottom surface 20a of the bathtub. And the bottom of the bathtub 20a
And the water absorption gap 63 can be held reliably.

Although the embodiment of the present invention has been described with reference to the drawings, the specific configuration is not limited to this. For example, the number, position, and the like of the fountain holes provided in the main body nozzle and the fountain holes provided in the nozzle cover can be appropriately determined.

[0034]

As described above, the circulating base with a bathtub cleaning function of the present invention is constructed as described above, so that the cleaning water can be spouted and collected when cleaning the bathtub. Therefore, the exclusive member for cleaning can be integrated into one die and incorporated, so that the number of types of molds at the time of molding can be reduced and the disadvantages of labor and cost at the time of molding can be improved. Can be

In addition, regarding the recovery of the washing water, the present invention is provided with a water absorbing hose, so that the washing water collected at the bottom of the bathtub can be sucked up to the water absorbing passage by the water absorbing hose. As a result, the washing water can be collected through the base, and unlike the related art, there is no need to connect a return pipe to the drain pipe of the bathtub to collect the washing water. Therefore, there is no need to provide piping to the drain pipe or provide a drain valve in the drain pipe, so that the effect of simplifying the piping structure and piping construction of the water heater can be obtained.

Further, when collecting the washing water, dust and the like contained in the washing water can be removed by the strainer. Since the strainer is detachable, dust and the like adhering to the strainer can be removed by removing the dust from the water suction passage.

When a step is provided at the lower end of the water-absorbing hose (claim 2), poor suction due to the lower end of the water-absorbing hose sticking to the bottom of the bathtub can be prevented, and the position of the circulating base is strictly determined. The water absorption gap can be reliably maintained between the lower end of the water absorption hose and the bottom surface of the bathtub without dimensioning.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a circulation base having a bathtub cleaning function according to an embodiment of the present invention.

FIG. 2 is a cutaway front view showing the circulation base.

FIG. 3 is an exploded sectional view showing an attachment structure of a strainer provided in the circulation base.

FIG. 4 is a cross-sectional view showing a cap attaching / detaching structure in the strainer attaching structure, taken along line YY in FIG. 2;
It is sectional drawing.

FIG. 5 is a sectional view of a nozzle cover provided in the circulation base.

FIG. 6 is an explanatory view showing a first hot water supply apparatus using the circulation base.

FIG. 7 is an explanatory view showing a second hot water supply apparatus using the circulation base.

[Explanation of symbols]

 N Circulating base with bath tub washing function A Water supply path B Recovery water path 1 Double pipe member 1a Water supply path 1b Water return path 10 Inner pipe 11 Outer pipe 2 Bath tub 4 Circulation port cover 4a Water discharge path 4b Water suction path 5 Nozzle member 52 Water receiving section 56 Fountain hole 58 Fountain hole 60 Water absorption hose 64 Strainer

Claims (2)

[Claims] A double pipe member having an inner pipe having a water supply passage formed therein and an outer pipe having a water return passage formed therein; a water discharge passage and a water suction passage formed therein; A circulation port cover fixed to the double pipe member in a state of forming a water supply path to the bathtub in communication with the water supply path, and forming a recovery water path from the bathtub in communication with the water suction path to the water return path; A water-absorbing hose extending from the water-absorbing channel to the vicinity of the bottom surface of the bathtub; a strainer detachably provided in the water-absorbing channel; and a circulation port cover in a state where a water-receiving portion formed inside communicates with the water-supply channel. A circulating mouthpiece having a bathtub cleaning function, comprising: a nozzle member rotatably mounted and having a fountain hole formed from the water receiving portion toward the inside of the bathtub. 2. A circulating base with a bathtub cleaning function according to claim 1, wherein a step is provided at a lower end of the water-absorbing hose to maintain a water-absorbing gap between the water-absorbing hose and a bottom surface of the bathtub.