JP2002081108A - Mixing faucet with single lever - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mixing faucet with a single lever, which facilitates formation of a channel, prevents transfer of heat of water/hot-water mixture to a surface thereof, and is manufactured at a low cost. SOLUTION: According to the mixing faucet, an attachment 12 for water/hot- water mixture, and a spouting elbow 15 are arranged between a lower disk 9 and a faucet installation member 17. The attachment 12 is fixed to a lower surface of the lower disk 9, and consists of an upper large-diameter portion and a lower small-diameter portion each having notches for guiding hot-water supply pipe and a water supply pipe which are led from through holes via pipe insertion holes to hot-water and water introducing holes. The attachment has a communication hole for water/hot-water mixture, and the communication hole vertically penetrates through the upper large-diameter portion and the lower small-diameter portion in order to communicate with a delivery hole of the water/hot-water mixture of the lower disk. The spouting elbow 15 is cylindrical in shape and has an engaging hole formed in a peripheral portion thereof, for engaging with a spout pipe. The elbow 15 sheathes the lower small- diameter portion in a manner being rotatable about an axis of the lower small- diameter portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single-lever type mixer tap which is inserted into and fixed to a through hole formed in a mounting plate for a sink of a sink or a washbasin.

[0002]

2. Description of the Related Art Conventionally, as a mixing tap of this type, as shown in FIG. 4, a water tap main body 60 for forming a mixing chamber A of hot and cold water in an annular shape is provided on a mounting plate 61 of a washbasin. A faucet mounting foot 63 fixed to the through hole 62 of the opening
Body 6 incorporating a valve unit 64 for mixing hot and cold water
Although there is a hot and cold water mixing faucet 66 consisting of 5 and 5, the faucet mounting foot 63 is made of a casting such as copper or brass, and the faucet body 65 is formed by processing and forming a metal pipe material such as copper or brass. Therefore, the cost is increased and the formation of the flow path is troublesome, and further, the cost is further increased by brazing the water discharge pipe 67 to the faucet body 65 in order to prevent water leakage and maintain strength. . Further, since the heat from the mixing chamber A is directly transmitted to the faucet body 65, there is a problem that the faucet body 65 becomes hot.

The present invention has been made in consideration of the above-mentioned problems, and has as its object to reduce the cost of a single lever capable of easily forming a flow path and preventing heat generated by a hot and cold water mixture from being transmitted to a surface. It is to provide a mixing tap of the formula.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a single-lever mixer tap which is inserted and fixed in a through hole formed in a mounting plate for a sink of a sink, a washbasin or the like. , A hot water introduction hole communicating with the hot water supply pipe,
It has an inlet for water and an outlet for mixed hot water that communicate with the water supply pipe, a lower disk for mounting and fixing the valve unit on top, and a pipe insertion hole for inserting the water supply pipe and the water supply pipe, and covers the through hole. While a press plate is provided for vertically connecting a water faucet mounting member fixedly installed to the mounting plate portion in the state, between the lower disk and the water faucet mounting member, the press plate is fixed to the lower surface of the lower disk, and from the through hole. An upper large-diameter portion and a lower small-diameter portion each having a notch for guiding the hot water supply pipe and the water supply pipe to the hot water introduction hole and the water introduction hole through the pipe insertion hole, respectively, and the lower disk A mixed hot / cold water attachment formed with a mixed hot / water communicating hole vertically penetrating the upper large diameter portion and the lower small diameter portion so as to communicate with the mixed hot water outlet hole; To It has a locking hole portion for locking, formed by providing a spout water elbow fitted around the lower small-diameter portion so as to be rotatable about its axis with respect to the lower small-diameter portion.

[0005]

Embodiments of the present invention will be described below. 1 to 3 show an embodiment of the present invention.

In FIG. 1 to FIG. 3, reference numeral 1 denotes a one-hole mixing tap, which is provided through a through-hole 3 formed in a tap mounting plate 2 such as a kitchen sink, a washbasin or a bathtub. 2 is fixed using bolts 4 and nuts 5.

Reference numeral 6 denotes a water faucet main body of the one-hole mixing faucet 1 which forms a hot water mixing passage B.

The faucet main body 6 has, in order from the top, a small-diameter upper opening 19 and a large-diameter lower opening 20, and includes a valve unit case 8 containing a valve unit 7 for mixing hot and cold water, and a hot water supply pipe 100. A lower disk 9 having an inlet hole a for communicating hot water, an inlet hole a for communicating with the water supply pipe 101, and an outlet hole b for mixing hot water, for mounting the valve unit 7 thereon, and the holes a, a, cylindrical packing (not shown) to be inserted into b
And a communication hole 48 for the mixed hot and cold water to the water discharge pipe 13. The attachment 1 for the mixed hot and cold water is fixed to the lower surface 9 a of the lower disk 9 and includes an upper large-diameter portion 10 and a lower small-diameter portion 11.
2 and a cylindrical hole having a locking hole 14 for locking the water discharge pipe 13 in a peripheral portion thereof, and the lower small diameter portion being rotatable around the axis with respect to the lower small diameter portion 11. 11 has a water discharge elbow 15 which is fitted to the outside, a disk-shaped pipe insertion hole 16 through which the hot water supply pipe 100 and the water supply pipe 101 are inserted, and the mounting plate 2 is attached to the mounting plate 2 so as to cover the through hole 3. Lower surface 2
A water faucet mounting member 17 fixed and installed by tightening the nut 5 from the b side, and a stainless steel press plate 18 for vertically connecting the water faucet mounting member 17 and the lower disk 9 with screws 90 are mainly used. Have.
The faucet mounting member 17 is configured so that the water discharge elbow 15 does not come into contact with the water discharge elbow 15 directly below the water discharge elbow 15, and the water discharge elbow 15 can be smoothly rotated. Reference numeral 91 denotes a screw hole provided in the press plate 18. In each of the introduction holes a and a, the upper surface 9b of the lower disk 9 shown in FIG. 2 is an outlet for hot water and water introduced into the valve unit 7 downstream.
In addition, in the introduction hole b, the upper surface 9b of the lower disk 9 shown in FIG. 2 is an inlet of the mixed hot water that is led out to the communication hole 48 of the downstream mixed hot water attachment 12.

The valve unit 7 is mounted on the lower fixed disk 9 via the bottom 26a of the housing cylinder (cartridge) 26, and is slidably overlapped on the fixed disk 20. A movable disk 21 made of ceramic, a support member 22 made of synthetic resin which is provided on the movable disk 21 and holds the movable disk 21,
The disc guide 23 and the disk guide 23 are housed in the housing cylinder 26 and are housed in the valve unit case 8 (for example, Japanese Patent Application No. 7-79).
No. 27515, description, drawings). A lever handle 25 for adjusting hot and cold water is connected to an upper end of a lever 24 pivotally attached to the disc guide 23 via an adapter 32, and a bottom 26 a of the housing cylinder 26 is provided with an upper surface of the lower disc 9. A projection 28 for positioning the storage cylinder is provided which engages with the engagement groove 27 provided in 9a. In addition,
Although not shown, the bottom portion 26a has a hole for communicating the hot water introduction hole a and the fixing hole of the fixed disk 20 in a watertight state, and a hole for communicating the water introduction hole a and the water hole of the fixed disk 20 in a watertight state. And a hole 31 for communicating the mixed hot water outlet hole b of the fixed disk 20 with the mixed hot water outlet hole 30 in a watertight state. In this embodiment, as described above, the valve unit 7 of the pair of introduction holes a, a is used.
And the inlet from the valve unit 7 of the outlet port b of the mixed hot and cold water is located not around the center of the upper surface 9b of the lower disk 9 but around the center. That is, the position of the outlet of the pair of introduction holes a, a is brought close to the engagement groove 27 of the lower disk 9, while the outlet b
Is set at a position farther from the engagement groove 27 than the outlets of the introduction holes a and a. This is the lever handle 25
This is because the movement of the fixed disk 20 and the movement of the movable disk 21 are matched with the operation.

Reference numeral 33 denotes a resin cover which covers the valve unit case 8.

Reference numeral 34 denotes a tubular water discharge pipe body, which has an insertion hole 36 for inserting the water discharge pipe 13 in a peripheral portion.

Reference numeral 35 denotes a heat insulating pipe whose rear portion 35a is inserted into the front end portion 13a of the water discharge pipe 13, 84 denotes a connection ring body fitted into the rear end portion 13b of the water discharge pipe 13, and 37 denotes a connection ring body.
While fitting the connecting ring body 84 into the water discharge pipe 13,
After inserting the heat-insulating pipe 35 into the tip portion 13a and fixing the heat-insulating pipe 35 with the screw 39, a pair of upper and lower heat-insulating covers 40,
41.

Further, the faucet mounting member 17 is provided with a bolt 4
Has a screw hole 42 into which is screwed, and a pair of outward flange pieces 44, which abut on the upper surface 2 a of the faucet mounting plate 2.
44 is provided at an intermediate portion of the outer peripheral surface. Then, a portion 17 c of the faucet mounting member 17 below the flange piece 44 is fitted into the through hole 3.

The lower disk 9 has, on its upper peripheral surface, a male screw 46 which is screwed into a female screw 45 formed on the lowermost inner peripheral surface of the valve unit case 8.

The attachment for mixed hot and cold water 12 has the communicating hole 48 at the center. That is, the communication hole 48 penetrates vertically through the central portion of the upper large-diameter portion 10 and the lower small-diameter portion 11, and communicates with the outlet of the mixed hot water outlet hole b of the lower disk 9 located upstream. I do.

The upper large-diameter portion 10 has a pair of notches 50 and 51 whose peripheral surfaces are notched. This guides the hot water supply pipe 100 and the water supply pipe 101 from the through hole 3 to the hot water introduction hole a and the inlet of the water introduction hole a through the pipe insertion hole 16 of the faucet mounting member 17, respectively. It is for. The upper large-diameter portion 10 and the lower disk 9 are set to have substantially the same diameter or the same diameter. Therefore, the inlet hole a of the hot water communicating with the hot water supply pipe 100 (the inlet hole a of the water communicating with the water supply pipe 101) is not located immediately below the outlet, but the inlet is shifted from the position of the outlet. As shown by a dotted line in FIG. Further, the outlet of the mixed hot water outlet hole b is connected to the mixed hot water attachment 12.
In order to communicate with the communication hole 48, the outlet is not located immediately below the inlet, and the outlet is shifted from the position of the inlet. Therefore, as shown by a solid line in FIG.
In other words, the inlet holes a, a and the outlet holes b are
Crosses within.

Next, a description will be given of a configuration in which the water discharge elbow 15 is rotated directly above the faucet mounting member 17 without abutting thereon.

An annular groove 60 is provided in the upper portion of the lower small diameter portion 11 of the attachment 12 for mixed hot and cold water (see FIG. 1), and an O-ring 67 is provided in the lower portion thereof.
The upper peripheral surface of the water discharge elbow 15 has a pair of long holes 61, 61 (see FIG. 2) at the same height position.

Further, the water discharge elbow 15 has a locking / communication hole 68 for connecting the water discharge pipe 13 to the peripheral portion so as to be capable of locking the water discharge pipe 13 in an outwardly upwardly inclined state, and a vertical hole communicating with the locking / communication hole 68. 69.

The outer diameter of the lower small-diameter portion 11 is set substantially equal to the inner diameter of the water discharge elbow 15, and the lower small-diameter portion 11 is disposed above the water discharge elbow 15 from above.
5 is configured to be fitted into the vertical hole 69.

Then, with the lower small diameter portion 11 fitted in the vertical hole 69, the long holes 61, 6 of the water discharge elbow 15 are inserted.
1 are inserted through the ends 80a and 80b.
The tips of a and 80b are locked in the annular groove 60 of the mixed hot water attachment 12, thereby preventing the water discharge elbow 15 from dropping onto the faucet mounting member 17, and preventing the water discharge elbow 15 from falling into the lower small diameter portion 11. A half-split ring body 80 is provided around which the water discharge elbow 15 can rotate by a predetermined angle (rotation angle). The rotation angle varies depending on the length of the end portions 80a and 80b of the ring body, but in any case does not exceed 180 °.

Next, a connection mechanism for connecting the water discharge pipe 13 to the water discharge elbow 15 will be described.

The water discharge pipe 13 has an annular groove 82 and an annular projection 83 in which an O-ring 81 is fitted in the rear end portion 13b in order from the upstream side, while the connecting ring body 84 is slightly downstream of the intermediate part. It has a pair of projection claws 88, 89 sandwiching the insertion hole 36 of the body.

As described above, the connection ring 84 is fitted into the rear end 13b of the water discharge pipe 13. The rear end face 36c of the connection ring 84 abuts the annular projection 83 and the projection claw 88. , 89 sandwich the periphery of the insertion hole 36 of the water discharge pipe body, so that the connection ring body 84 is locked. Also, a state in which the water discharge pipe 13 is fitted into the locking / communication hole 68 of the water discharge elbow 15 (see FIG. 3B).
Then, the annular projection 83 contacts the annular projection 83 to contact the front surface 14a of the locking hole 14 of the water discharge elbow 15 and the O-ring 81 is connected to the locking hole 1.
By fitting onto the inner peripheral surface of the nozzle 4, a sealed state can be secured, and the water discharge pipe 13 can be firmly supported by the water discharge elbow 15.

As described above, the water discharge pipe 13 is configured to be detachable from the water discharge elbow 15 via the connection ring 84. Therefore, in the case where the O-ring 67 of the attachment 12 for mixed hot and cold water is deteriorated, the sealing property is deteriorated, and water leakage or the like occurs, the replacement work of the O-ring 67 is easy. That is, the work of removing the water discharge pipe 13 from the water discharge elbow 15 via the connection ring body 84 without performing a troublesome work such as disassembling the faucet main body 6, and subsequently, the work of simply removing the water discharge elbow 15 Can be replaced.

[0026]

According to the present invention, the hot water supply pipe and the faucet mounting member having the pipe insertion hole through which the water supply pipe is inserted are attached to the mounting plate in such a manner as to cover the through hole formed in the mounting plate portion of the sink or the washbasin of the sink. And a press plate for vertically connecting the lower disc for mounting and fixing the valve unit and the faucet mounting member, and further, between the lower disc and the faucet mounting member, on the lower surface of the lower disc. An upper large diameter portion and a lower small diameter portion which are fixed and have cutouts for guiding the hot water supply pipe and the water supply pipe from the through hole to the hot water introduction hole and the water introduction hole through the pipe insertion hole, respectively. A mixed hot and cold water hole formed with a mixed hot and cold water communication hole vertically penetrating the upper large diameter portion and the lower small diameter portion to communicate with the mixed hot water outlet hole of the lower disk. And a cylindrical hole having a locking hole for locking a water discharge pipe in a peripheral portion thereof, and is externally fitted to the lower small diameter portion so as to be rotatable around the axis with respect to the lower small diameter portion. Since the water discharge elbow is provided, the hot water supply flow path and the water supply flow path and the mixed hot water flow path can be easily formed without using a conventional faucet mounting foot made of, for example, copper or brass, and , And can be formed at low cost.

Further, since the water discharge pipe is configured to be detachable from the water discharge elbow, maintenance such as replacement of the O-ring can be easily performed, and the water discharge pipe is fixed to the faucet body by brazing as in the conventional case. Since there is no need to do this, the cost is further reduced.

Further, since the flow path of the mixed hot and cold water communicating with the water discharge pipe is formed in the faucet main body, it is possible to prevent the heat from the flow path of the mixed hot and cold water from being transmitted to the surface.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an overall configuration showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the embodiment.

FIG. 3 is a view for explaining a connection mechanism of a water discharge pipe to a water discharge elbow in the embodiment.

FIG. 4 is a configuration explanatory view showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... One-hole mixer tap, 2 ... Water faucet mounting plate part, 3 ... Through-hole, 7 ... Valve unit, 9 ... Lower disc, 12 ... Attachment for mixed hot and cold water, 13 ... Water discharge pipe, 15 ... Elbow for water discharge, 17 ... Faucet mounting member, 18 ... Press plate.

Claims (1)

[Claims] 1. A single lever type mixing tap which is inserted and fixed in a through hole formed in a mounting plate portion of a sink or a washbasin of a sink or the like, and is connected to a hot water introduction hole communicating with a hot water supply pipe and a water supply pipe. A lower disk having a water introduction hole and a mixed hot water discharge hole, a lower disk for mounting and fixing the valve unit thereon, and a pipe insertion hole for inserting the hot water supply pipe and the water supply pipe, and a mounting plate portion covering the through hole. A press plate is provided for vertically connecting a faucet mounting member fixedly installed to the lower disk, and between the lower disk and the faucet mounting member, the lower plate is fixed to a lower surface of the lower disk, and the pipe insertion hole is provided from the through hole. An upper large-diameter portion and a lower small-diameter portion each having a notch for guiding the hot water supply pipe and the water supply pipe through the hot water introduction hole and the water introduction hole, respectively, and the mixed hot and cold water of the lower disk. Guidance An attachment for mixed hot and cold water in which a communication hole for mixed hot water that penetrates vertically through the upper large-diameter portion and the lower small-diameter portion to communicate with the outlet, and a tubular shape,
A water discharge elbow having a locking hole for locking a water discharge pipe in a peripheral portion, the water discharge elbow being fitted to the lower small diameter portion so as to be rotatable around the axis with respect to the lower small diameter portion; A single-lever mixer tap characterized by the following: