JP2001193112A - Mounting structure of combination faucet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a combination faucet to be installed in a bathroom and a lavatory. SOLUTION: This mounting structure of the combination faucet consists of the combination faucet provided with a joint for hot-water supply and a joint for water supply and a joint receiving part for hot water and water whose one end is connected to tips of a hot-water pipe and a water pipe which rise from a floor and whose other end is provided with the combination faucet. In this structure, the joint receive part for hot water and water and the joint on the combination faucet side are mutually pressed and connected by fitting them in male and female parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a mixing faucet installed in a bathroom or a washroom.

[0002]

2. Description of the Related Art In the conventional installation of a mixing faucet, a hot water supply pipe and a water supply pipe extending from tap water are arranged on the back of a mounting wall to which the mixing faucet is attached, and the wall penetrates the wall at a right angle from each pipe. The connecting metal fitting is provided, and the connecting metal fitting and the mounting fitting on the mixing faucet side are connected by screws.

FIG. 1 is a front view of a conventional mixing faucet, and FIG. 2 is a side view thereof. In the figure, 101 is a faucet tap, 10
Reference numerals 2 and 103 are handles, and 104 is a hot and cold water mixing section. Crank-shaped fittings (joints) 105 and 106 for guiding hot and cold water to the mixing section 104 are provided, and these are fixed to the mixing section 104 at a C-shaped angle by screws 107. One ends of the crank-shaped mounting fittings (joints) 105 and 106 are connected to connection fittings (joint receiving portions) 111 that penetrate the wall 110 by screws 108 again. This crank shaped joint 1
05 and 106 are generally mounted in a C-shape when viewed from the front,
This is used for connection alignment with the joint portion 111 on the wall 110 side, and the angle is also the same.

However, in this case, since the mounting bracket and the mixing faucet are screwed (107) after adjusting the screwing angle of the mounting bracket and aligning with the mixing faucet, time is required for this mounting work. In addition, there is a drawback that water leakage may occur depending on the construction method.

When the thread of the mounting bracket is a tapered screw, an appropriate tightening torque may not be obtained for positioning. That is, in some cases, the screw portion must be loosened for alignment, but this tends to cause water leakage. Further, when the mixing faucet is to be changed to a new one, it may not be possible to position the mixing faucet, and improvement has been required.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned prior art, and is easy to install a mixing faucet, and even if there is a slight displacement, the mixing faucet can be installed. An object of the present invention is to provide a mounting structure of a mixing faucet that can be surely performed.

[0007]

SUMMARY OF THE INVENTION The gist of the present invention is to provide a hot water supply joint, a mixing faucet having a water supply joint, and one end connected to the end of a hot water supply pipe rising from the floor and the other end of the water supply pipe. A hot water supply and water supply joint receiving part to which the mixing faucet is attached, and the hot water supply and water supply joint receiving part and the joint on the mixing faucet side are configured to be pressed and connected by male and female fitting. The mixing faucet mounting structure is characterized in that the male and female fittings between the hot water supply and water supply joint receiving portion and the joint on the mixing faucet side are preferably detachable.

It is preferable that the hot water supply and the water supply joint receiving portion be housed in a box of a predetermined size in advance in order to improve the production at the work site. The structure is such that the hot water supply and the water supply joint receiving portion can be slightly moved relative to each other.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is characterized in that a hot water supply joint and a water supply joint of a mixing faucet and a hot water supply pipe and a water supply pipe side joint receiving portion are pressed and connected by male and female fitting. It is intended to provide a mixing faucet characterized in that it can be relatively easily combined and separated.

The joints and the joint receiving portions that can be pressed and connected will be described in detail in the embodiments, but the mixing faucet side and the connecting fitting side may have either male or female structure.

It is preferable that the joint receiving portion penetrating the wall is maintained at the exact dimension position with respect to the joint on the mixing faucet side, but a floating space is provided by providing a slight clearance between the two joints constituting the joint receiving portion. It is possible to be in a state, and by doing so, it is possible to press-connect even if there is a slight difference at the time of attachment between the two.

[0012]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples. FIG. 3 is a front view showing a first example of the mixing faucet of the present invention, and FIG. 4 is a partially cutaway side view thereof. In the figure, 1 is a faucet tap, 2 and 3 are handles, and 4 is a hot and cold water mixing section.
(Male) joint 1 for guiding hot water and water to the hot / water mixing section 4
A is provided respectively. A hot water flow path 5 is formed at the center of the male joint 1A. On the other hand, a joint receiving portion corresponding to the male joint 1A, that is, a female joint 1B is provided penetrating the wall 90, and is connected to a hot water supply pipe 91 and a water supply pipe 92 behind the wall 90. In the example of the present invention, the construction work is completed only by pushing the male joint 1A on the mixing faucet 1 side into the female joint 1B protruding from the wall 90.

In FIG. 4, reference numeral 80 designates a rubber ring in the gap between the female joint 1B and the wall 90, which fills the gap between the female joint 1B and the wall 90, and Since the female joint 1B can act on the left and right by the elastic deformation of the ring 80, the male joint 1A can be securely mounted. As described above, the joint receiving portion penetrating the wall 90 can be set in a floating state by providing a slight clearance between the two female joints constituting the joint receiving portion. It is also possible to make a pressure connection.

FIGS. 5 to 8 show the male joint 1A and the female joint 1 described above.
FIG. 6 is a partially cut-away side sectional view showing a coupling process with B. 5 is a state before the two are joined, FIG. 6 is a state where the male joint 1A is inserted, FIG. 7 is a state where the male joint 1A is inserted about half, and FIG. 8 is a state where the male joint 1A is completely inserted. It is.

In the male joint 1A, a flow path 5 is formed in the central longitudinal direction, the distal end portion has a small diameter 6, and the hand side has a large diameter 7
And the taper 8 between them.
Circumferential groove 1 with taper 9a, 9b on the outer surface of large diameter portion 7
0 is formed. A female screw portion 11 for fixing to the hot / water mixing section 4 is formed on the hand side of the male joint 1A, and is connected to the hot / water mixing section 4 with a bush 12 interposed therebetween.

In the female joint 1B, a flow path 13 is formed in the central longitudinal direction, and the large diameter portion 14, the small diameter portion 15
Are formed via step portions 16 and 17, respectively. A circumferential groove 18 is formed in the small-diameter portion 15, and an O-
The ring 19 is fitted. The small diameter portion 15 is an insertion portion of the small diameter portion 6 at the tip of the male joint 1A. On the other hand, the large diameter portion 1
4 has a built-in inner spring 20 corresponding to the inner spring 2.
An inner collar 22 having a front end portion 21 having a diameter smaller than 0 is fitted, and an inward taper 23 is formed at a rear end portion of the inner collar 22. This taper 23 becomes a contact surface with the taper 8 of the male joint 1A.

A small-diameter portion 25 is formed on the outer surface of the female joint 1B with a step portion 24. An outer spring 26 is fitted into the small-diameter portion 25, and is further covered by an outer collar 27. Outer spring 2
6 is sandwiched between the step portion 24 and the step portion 28 on the side of the outer collar 27 in a compressed state. The distal end of the outer collar 27 is a large diameter portion 29, and a locking member (ball) to be described later is fitted therein.

Further, a hole 30 extending outward is formed in the small diameter portion 25 of the female joint 1B, and a ball (locking member) 31 is fitted into the hole 30. Therefore, the ball 31 has a hole 30 on the periphery and a step 28 of the outer collar 27 on the upper and lower sides.
And the inner collar 22.

When the distal end of the male joint 1A is inserted into the inner collar 22 in the female joint 1B, the taper 8 and the inward taper 23 of the inner collar 22 come into contact with each other. 20 are compressed. The O-ring 19 comes into contact with the outer surface of the small diameter portion 6 at the distal end of the male joint 1A. When the male joint 1A is further inserted, the ball 31 is inserted into the circumferential groove 1 formed on the outer surface of the large diameter portion 7 of the male joint 1A.
It falls into 0 and comes off from the large diameter portion 29 of the outer collar 27. Accordingly, the outer collar 27 is moved to the distal end side by the outer spring 26, and the ball 31 is securely contained in the circumferential groove 10, whereby the male joint 1A and the female joint 1B are completely connected.

On the other hand, in order to separate the male joint 1A from the female joint 1B, when the outer collar 27 is pressed backward from the distal end side, the outer spring 26 is compressed, and the outer collar 27 advances further rearward, and the large diameter portion 29 Male joint 1 with ball reaching ball 31
A can be pulled out.

FIG. 9 shows a second embodiment of a mixing faucet according to the present invention, in which a partially cutaway sectional view showing an example of a male joint 1A on the mixing faucet side and a partially cutaway female joint 1B penetrating a wall. It is a chipping sectional view. The male joint 1A is disposed on the mixing faucet side in the same manner as in the previous example, while a joint receiving portion corresponding to the male joint 1A, that is, a female joint 1B is provided through the wall, and a hot water supply pipe and a water supply pipe are provided behind the wall. And connected to. In the example of the present invention, the construction work is completed only by pushing the male joint 1A on the mixing faucet 1 side into the female joint 1B protruding from the wall.

Here, the male joint 1A of the mixing faucet of the second example and the female joint 1B on the joint receiving portion side will be further described.
A channel 5 is formed at the center of A. And male joint 1
A peripheral groove 10 is formed on the outer surface of A, and a taper 32 is formed on the outer peripheral surface of the distal end to form a tapered distal end. The taper 32 acts to expand the diameter of an annular coupling member described later when the male joint 1A is coupled to the female joint 1B as described later.

The circumferential groove 10 provided in the male joint 1A is formed in a triangular or trapezoidal shape having a wide-mouthed cross section, and preferably has tapered front and rear portions 9a and 9b. The taper 9a is mainly for moving the annular coupling member (locking member) 33 during separation, while the taper 9b is for moving the annular coupling member 3 during use under pressure.
3 is the surface that supports it.

In the large diameter portion 13a of the flow path 13 in the female joint 1B, a circumferential groove 34 is formed on the inner peripheral surface,
An O-ring 35 made of a rubber-like elastic material is provided in the circumferential groove 34.
Is installed. Further, the flow path 13a of the female joint 1B
A circumferential groove 36 is formed on the inner peripheral surface of the rim, and an annular coupling member 33 made of elastic metal and partially cut is fitted in the circumferential groove 36.

The circumferential groove 36 forms a step groove 37 having a small diameter and a large diameter. In this example, the small diameter groove 38 is located on the tip side of the large diameter groove 39, and in particular, the small diameter groove 38
An example is shown in which tapers 40 and 41 are formed at the end and between the small diameter groove 38 and the large diameter groove 39, respectively. The taper 40 serves to sandwich and support the annular coupling member 33 with the taper 9b of the male joint 1A, while the taper 41 moves between the small-diameter groove 38 and the large-diameter groove 39 of the annular coupling member 33. That is, the diameter of the annular coupling member 33 is increased and reduced.

The distal end 42a of the annular guide 42 is inserted into the gap between the male joint 1A and the female joint 1B.
2 is provided with a concave groove 44 provided on the outer peripheral side of the female joint 1B.
It is provided in the bullet. Although not shown, the annular guide 42
Preferably, a rubber-like waterproof cover is provided over the cover.

Next, the male joint 1A and the female joint 1B according to this example
Will be described. First, while the two joints are being connected, FIG. 10 shows a state in which the distal end of the male joint 1A is slightly fitted into the channel 13a of the female joint 1B. As shown in the drawing, when the male joint 1A is further inserted, the taper 32 formed at the distal end thereof is fitted in a state where the diameter of the annular coupling member 33 is increased from the inside. The annular coupling member 33 is an elastic ring partially cut away as in the previous example, and is gradually expanded in the large-diameter groove 39 and is inserted into the circumferential groove 10 having a trapezoidal cross section formed on the outer surface of the male joint 1A. The diameter will be reduced to the original diameter.

The state during use is as shown in FIG. 11. When the mixing faucet 1 is used, since water pressure is applied to the flow passage, the male joint 1A and the female joint 1B receive forces in opposite directions. They will be slightly offset in opposite directions. That is, the male joint 1A is shifted in the direction opposite to the above-described direction, and the female joint 1B is shifted.
Will shift in this direction. Then, the annular coupling member 33 is fitted between the peripheral groove 10 and the small-diameter groove 38 forming the step groove 37, and this is the taper 9b and the taper 40.
It holds the connection between the two during use.

As described above, pressing the male joint 1A against the female joint 1B can be easily performed only when there is no load. However, when a mixing faucet is used, a load is applied in a direction opposite to the pressing direction, so that during use, Inadvertent separation is not possible and safety is maintained.

Next, at the time of separation, as shown in FIG. 12, first, the hot water supply pipe and the fluid in the water supply pipe are shut off, the internal pressure is reduced, and then the male joint 1A is pushed toward the female joint 1B.
Then, the annular coupling member 33 is pushed back by the taper 9 a formed in the circumferential groove 10, and is pushed out of the small diameter groove 38 into the large diameter groove 39 and comes out. Then, the annular coupling member 33 further expands in diameter, comes off the taper 9a of the circumferential groove 10, and rides on the outer peripheral surface of the male joint 1A.

After reaching this state, the annular guide 41 is generally pressed together with the dustproof cover in the direction of the female joint 1B. By this pressing, the tip 42a of the annular guide 42
Is interrupted between the annular coupling member 33 and the male joint 1A, and the annular coupling member 33 is held in the large-diameter groove 39 in an enlarged state.

In this state, the male joint 1A can be easily separated by pulling out the male joint 1A. For this reason, it is preferable that the distal end 42a of the annular guide 42 be tapered so as to be easily interrupted between the male joint 1A and the annular coupling member 33.

It should be noted that the pipe joint and the female joint of the mixing faucet of the present invention are not limited to the above example, and FIG. 13 is a partially cutaway sectional view showing a third example. In this example, a wide groove 45 having a trapezoidal cross section is formed on the inner peripheral surface of the female joint 1B, and a step groove 48 composed of a small diameter groove 46 and a large diameter groove 47 is formed in the male joint 1A correspondingly. In this example, a small-diameter groove 46 is disposed on the distal end side of the male joint 1A.

In this example, the annular coupling member 33 is once expanded in diameter and mounted in the step groove 48. Then, the annular connecting member 33 returns to its original diameter in the large-diameter groove 47. The outer shape of the annular connecting member 33 is selected to be larger than the outer shape of the male joint 1A, and the diameter of the annular connecting member 33 is reduced. In such a case, one having such a size and shape as to fit in the large-diameter groove 47 is selected.

At the time of use, the annular connecting member 33 is used.
Are located in the small-diameter groove 46, and are not sandwiched by the taper 45 a of the peripheral groove 45 and the taper 49 of the small-diameter groove 46, so that they are not coupled and come off.

FIG. 14 shows a fourth embodiment of the mixing faucet of the present invention. FIG. 14 is a partially cutaway sectional view before installation, FIG. 15 is a partially cutaway sectional view after installation, and FIG. FIG. In the drawing, the one indicated by the dashed line indicates the faucet joint box 70, and this box 7
This is an example in which a joint receiving portion, that is, a main body portion of the male joint 1A in this case is accommodated in the inside of the male joint 1A. In this way, a pair of joints are set at predetermined positions in a box 70 having a predetermined size in advance, and are connected to the hot water supply pipe 91 and the water supply pipe 92.
This is fixed to the wall 90. Even in this case, box 70
It is preferable that the joint 1A be in a floating state. As described above, the male joint 1A described above may be arranged on the wall 90 side and the female joint 1B may be arranged on the side of the mixing faucet.

FIGS. 17 and 18 show a fifth embodiment of the mixing faucet of the present invention.
FIG. 17 is a sectional view showing a state before the male joint 1A is inserted into the female joint 1B, and FIG. 18 is a sectional view showing a state after the male joint 1A is completely inserted.

In FIG. 17, a projection 51 for fixing the outer collar 50 and a step portion 53 for accommodating the coil spring 52 are formed on the outer surface of the female joint 1B forming the base of the pipe joint, and the end surface thereof is in contact with the inner collar 54. It has become. And
A circumferential groove 55 is formed on the inner surface of the female joint 1B, where an O-
A ring 56 is fitted. The inner collar 54 made of synthetic resin supports a hard ball 58 fitted in the peripheral groove 57 of the male joint 1A, and has an inner diameter larger than that of the female joint 1B where the peripheral groove 55 is formed. The inner collar 54 is urged so that the flange 59 abuts on the coil spring 52 and the female joint 1B is separated. The female joint 1 </ b> B, the coil spring 52, and the inner collar 54 are arranged in series in this order, and the open end 60 of the inner collar 54 protrudes from the outer collar 50. The inside of the flange 59 of the inner collar 54 is a tapered surface.

An outer collar 50 made of synthetic resin is externally fixed to the female joint 1B, and covers the inner collar 54 and the coil spring 52. End 6 of outer collar 50
1 is reduced in diameter to form a tapered portion 62, and a moving space 63 for the hard ball 58 is provided in front of the tapered portion 62. Here, there are various fixing means for fixing the outer surface of the female joint 1B to the outer collar 50, and there is no particular limitation. In the illustrated example, the fixing means is provided on the inner surface of the outer collar 50 corresponding to the projection 51 of the female joint 1B. A circumferential groove 64 is formed, and both are fitted and fixed.

Metallic male joint 1 inserted into female joint 1B
A is a mechanism similar to that already described, and is omitted here. However, a front taper portion 66, a large diameter portion 67, a rear taper portion 68, and a circumferential groove 69 are formed at predetermined positions from the front end 65. Therefore, when the male joint 1A is completely inserted into the inner collar 54, the hard ball 58 falls into the circumferential groove 69. The front tapered portion 66 is formed of the hard ball 58
When the hard ball 58 reaches the moving space 63 of the outer collar 50, the hard ball 58 can ride on the large-diameter portion 67 when the inner collar 54 contacts the inner collar 54. Angle. Further, the rear tapered portion 68 has such an angle that the hard ball 58 can ride on the large-diameter portion 67 when the tube 1B is pulled out for separation.

Next, connection and detachment of the male joint 1A and the female joint 1B in this pipe joint will be described. When the male joint 1A is inserted into the inner collar 54 of the female joint 1B in the state of FIG. 17, the tip 65 is inserted without contacting the hard ball 58, and further inserted inside while contacting the O-ring 56. Is done. In this insertion process, as shown in FIG.
The front tapered portion 66 of the male joint 1A comes into contact with the hard ball 58 and acts to push the hard ball 58 and the inner collar 54 deeper into the joint against the bias of the coil spring 52.
Subsequently, the hard ball 58 is moved to the moving space 63 of the outer collar 50.
Is reached, the hard ball 58 becomes the large diameter portion 67 of the male joint 1A.
And falls into the circumferential groove 69. Therefore, as shown in FIG. 18, when the male joint 1A is completely inserted, the hard ball 58 and the circumferential groove 69 are fitted to each other, and the connection between the two is completed.

Now, as shown in FIG. 18, when the male joint 1A is completely inserted and a force is applied to pull out the male joint 1A, or when a fluid flows through the male joint 1A, When a force acts in the direction in which the male joint 1A is pulled out, the hard ball 58 is pressed and restrained by the tapered portion 62 of the outer collar 50, cannot escape from the circumferential groove 69, and the male joint 1A is Withdrawal from 1B is prevented. That is, the hard ball 58 is
Is pushed toward the male joint 1A by the tapered portion 62, and bites into the circumferential groove 69. When an excessive pressure or pull-out force is applied, the inner collar 54 follows the hard ball 58 and the male joint 1A and moves toward the tapered portion 62 of the outer collar 50.
The inner side 9 abuts against the tapered portion 62 of the outer collar 50 to firmly grip the male joint 1A.

On the other hand, when the male joint 1A is disengaged from the female joint 1B, the inner ball 54 is moved toward the female joint 1B, so that the hard ball 58 and the male joint 1A also move therewith, and the hard ball 58 is moved outward. Moving space 63 for collar 50
Leads to. When the male joint 1A is pulled out, the hard ball 58 rides on the rear taper portion 68, and the hard ball 58 comes out of the circumferential groove 69 to release the connection state. Therefore, the male joint 1A is easily pulled out from the female joint 1B. You can do it. Note that the relationship between the inner collar 54 and the outer collar 50 is not necessarily limited to the opening end 60 of the inner collar 54.
It is not necessary for the inner collar 54 to project from the outside.
Can be moved to the female joint 1B side.

[0044]

According to the mixing faucet of the present invention, the mounting time can be shortened and the quality can be stabilized, and the use of the floating structure eliminates the need for a crank-shaped fitting for positioning the two joints. There are features. For this reason, not only the coupling but also the separation is easy, and the coupling and the separation can be easily performed even in a narrow work space, and the structure of the mixing faucet is simplified and the cost is reduced.

[Brief description of the drawings]

FIG. 1 is a front view of a conventional mixing faucet.

FIG. 2 is a side view of the mixing faucet of FIG.

FIG. 3 is a front view of a first embodiment of the mixing faucet of the present invention.

FIG. 4 is a cutaway side view of the mixing faucet of FIG. 3;

FIG. 5 is an enlarged exploded side view of the mixing faucet of FIG. 3 with a partial cutout.

FIG. 6 is a partially cutaway side view in the first step of connecting the mixing faucet of FIG. 3;

FIG. 7 is a partially cutaway side view in the second step of coupling the mixing faucet of FIG. 3;

FIG. 8 is a partially cutaway side view of the third step of the connection of the mixing faucet of FIG. 3;

FIG. 9 is a partially cutaway side sectional view showing a second embodiment of the mixing faucet of the present invention.

FIG. 10 is a side view of a half cut in a first step of connecting the mixing faucet of FIG. 9;

FIG. 11 is a half cut side view showing a use state of the mixing faucet of FIG. 9;

FIG. 12 is a half cut side view when the mixing faucet of FIG. 9 is separated.

FIG. 13 is an enlarged side view of a third embodiment of the mixing faucet of the present invention.

FIG. 14 shows a fourth embodiment of the mixing faucet of the present invention, and is a partially cutaway side view before installation.

FIG. 15 is a partially cutaway side view after the installation of the mixing faucet of FIG. 14;

FIG. 16 is a partially cutaway side view showing a connecting step in the mixing faucet of FIG. 14;

FIG. 17 shows a fifth embodiment of the mixing faucet of the present invention, and is a partially cutaway side view before installation.

FIG. 18 is a partially cutaway side view after the installation of the mixing faucet of FIG. 17;

[Explanation of symbols]

 1A male joint, 1B female joint, 1 tap faucet, 2, 3 handle, 4 hot and cold water mixing section, 5 male joint 1A flow path, 10 circumferential groove, 13 female joint 1B flow path , 20 ‥ inner spring, 22 カ ラ ー inner collar, 26 ば ね outer spring, 27 ‥ outer collar, 29 ‥ outer collar large diameter portion, 30 ‥ hole, 31 ‥ ball (locking member).

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D060 BA01 BB01 BF01 3H051 AA04 BB02 BB03 CC15 FF02 FF15 3J106 AB01 BA02 BB01 BC04 BD01 BE29 CA03 EA03 EB05 EB07 EC02 EC07 ED14 ED32 EE13 EF05

Claims (4)

[Claims] 1. A water faucet having a water supply joint and a water supply joint, and a hot water supply and a water supply in which one end is connected to one end of a water supply pipe rising from the floor and the other end of the water supply pipe and the other end is attached to the mixed water faucet. And a fitting for receiving hot water and a water supply and a fitting on the mixing faucet side are pressed and connected by male and female fittings. 2. The mixed faucet mounting structure according to claim 1, wherein the male / female fitting between the hot water / water supply joint receiving portion and the joint on the mixing faucet side is detachable. 3. The mounting structure for a mixing faucet according to claim 1, wherein the hot water supply and the water supply joint receiving portion are housed in a box having a predetermined size. 4. The mounting structure for a mixing faucet according to claim 1, wherein the hot water supply and the water supply joint receiving portion have a structure capable of slightly moving each other.