JP4410402B2 - Single lever type mixer tap - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a single lever type mixing plug that is inserted and fixed in a through hole provided in a mounting plate portion such as a sink of a sink or a wash bowl.
[0002]
[Background Art and Problems to be Solved by the Invention]
Conventionally, as this kind of mixing plug, as shown in FIG. 4, a faucet mounting in which a faucet body 60 that forms a hot water mixing chamber A in an annular shape is fastened to a through-hole 62 formed in a mounting plate portion 61 of a wash bowl. Although there is a hot and cold water mixing faucet 66 comprising a foot 63 and a faucet body 65 incorporating a valve unit 64 for mixing hot water and water, the faucet mounting foot 63 is made of cast metal such as copper or brass. Since the body 65 is formed by processing a metal pipe material such as copper or brass, the cost is increased and it takes time to form the flow path. In addition, the water discharge pipe 67 is used to prevent water leakage and maintain strength. The cost was further increased by brazing the faucet body 65. Furthermore, 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.
[0003]
The present invention has been made in consideration of the above-mentioned matters, and its purpose is to make it easy to form a flow path and to prevent heat from being transferred to the surface from being mixed with a low-cost single lever type mixing device. To provide a stopper.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the present invention introduces hot water communicating with a hot water supply pipe in a single lever type mixing plug inserted and fixed in a through hole provided in a mounting plate portion such as a sink of a sink or a wash bowl. A hole, a water introduction hole communicating with the water supply pipe, and a mixed hot water outlet hole, a lower disk for mounting and fixing the valve unit, a pipe insertion hole for inserting the hot water supply pipe and the water supply pipe, and the through hole A press plate that connects the faucet mounting member fixed to the mounting plate portion in a state of covering the upper and lower sides, and is fixed to the lower surface of the lower disc between the lower disc and the faucet mounting member, 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 from the hole to the hot water introduction hole and the water introduction hole through the pipe insertion hole, Lower A mixed hot water attachment having a communicating hole for mixed hot water that vertically penetrates the upper large diameter portion and the lower small diameter portion to communicate with the mixed hot water outlet hole of the disc, and a cylindrical shape that is discharged to the periphery. A water discharge elbow having a locking hole for locking the water pipe and fitted around the lower small-diameter portion so as to be rotatable about its axis with respect to the lower small-diameter portion is provided.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
1 to 3 show an embodiment of the present invention.
[0006]
1 to 3, reference numeral 1 denotes a one-hole mixing plug, which is bolted to the faucet mounting plate 2 through a through hole 3 provided in the faucet mounting plate 2 such as a kitchen sink, a wash bowl, and a bathtub. 4 and nut 5 are used for fixing.
[0007]
Reference numeral 6 denotes a faucet body of the one-hole mixer tap 1 that forms a hot and cold mixing channel B.
[0008]
The faucet body 6 has a small-diameter upper opening 19 and a large-diameter lower opening 20 in order from the top, a valve unit case 8 containing a hot water mixing valve unit 7, and hot water communicating with the hot water supply pipe 100. A lower disk 9 on which the valve unit 7 is mounted and fitted, and the holes a, a, b. A cylindrical packing (not shown) and a communicating hole 48 for the mixed hot water to the water discharge pipe 13, which are fixed to the lower surface 9 a of the lower disk 9, and consist of an upper large diameter portion 10 and a lower small diameter portion 11. The mixed hot water attachment 12 has a cylindrical shape and a locking hole 14 for locking the water discharge pipe 13 around the periphery, so that the lower small diameter portion 11 can rotate around its axis. An elbow 15 for water discharge that fits around the lower small diameter portion 11 and a disc shape The hot water supply pipe 100 and the water supply pipe 101 are inserted into the pipe insertion hole 16 so as to cover the through hole 3 and fixed to the mounting plate 2 by tightening with the nut 5 from the lower surface 2b side of the mounting plate 2. The faucet mounting member 17 and the stainless steel press plate 18 for connecting the faucet mounting member 17 and the lower disk 9 up and down using screws 90 are mainly provided. Further, the faucet mounting member 17 is positioned without the water discharge elbow 15 coming into contact with 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 portion of the lower disk 9 shown in FIG. 2 is an outlet for hot water and water introduced to the downstream valve unit 7 side. Further, in the introduction hole b, the upper surface 9b portion of the lower disk 9 shown in FIG. 2 is an inlet of mixed hot water led out to the communication hole 48 of the downstream mixed hot water attachment 12.
[0009]
The valve unit 7 includes a ceramic fixed disk 20 mounted on the lower disk 9 via a bottom portion 26a of a housing cylinder (cartridge) 26, and a ceramic-made slidably superposed arrangement on the fixed disk 20. A movable disk 21, a synthetic resin support member 22 that is on the movable disk 21 and holds the movable disk 21, and a disk guide 23 are housed in the valve unit case 8 so as to be housed in the housing cylinder 26 ( (For example, see Japanese Patent Application No. 7-27515, specification, drawings). A lever handle 25 for adjusting hot water is connected to an upper end of a lever 24 pivotally attached to the disk guide 23 via an adapter 32, and an upper surface of the lower disk 9 is connected to a bottom 26 a of the housing cylinder 26. A protruding piece 28 for positioning the accommodating cylinder that engages with the engaging groove 27 provided in 9a is provided. Although not shown, the bottom portion 26a has a hole for communicating the hot water introducing hole a and the hot water hole of the fixed disk 20 in a watertight state, and the water introducing hole a and the water hole of the fixed disk 20 are communicated in a watertight state. On the other hand, it has a hole 31 for communicating the mixed hot water outlet hole b and the mixed hot water outlet hole 30 of the fixed disk 20 in a watertight state.
In this embodiment, as described above, the outlet of the pair of introduction holes a, a to the valve unit 7 and the inlet of the mixed hot water outlet hole b from the valve unit 7 are the center of the upper surface 9b of the lower disk 9. Instead, it is designed to be located around the center. In other words, the positions of the outlets of the pair of introduction holes a and a are brought close to the engagement groove 27 of the lower disk 9, while the inlet of the mixed hot water outlet hole b is more engaged than the outlet of the introduction holes a and a. It is set at a position far from the groove 27. This is because the movement of the fixed disk 20 and the movable disk 21 is matched to the operation of the lever handle 25.
[0010]
Reference numeral 33 denotes a resin cover that covers the valve unit case 8.
[0011]
34 is a cylindrical water discharge pipe body, and has an insertion hole 36 for inserting the water discharge pipe 13 in the peripheral portion.
[0012]
35 is a heat insulating pipe in which the rear portion 35a is inserted into the distal end portion 13a of the water discharge pipe 13, 84 is a connection ring body fitted into the rear end portion 13b of the water discharge pipe 13, and 37 is a water discharge pipe for the connection ring body 84. 13 and a pair of heat insulating covers 40 and 41 configured to be divided into upper and lower parts covering the remaining water discharge pipe portion after the heat insulating pipe 35 is inserted into the tip end portion 13a and the heat insulating pipe 35 is fixed by screws 39.
[0013]
Further, the water faucet mounting member 17 has a screw hole 42 into which the bolt 4 is screwed, and a pair of outward flange pieces 44 and 44 abutting against the upper surface 2a of the water faucet mounting plate portion 2 at the intermediate portion of the outer peripheral surface. Have. A portion 17 c below the flange piece 44 of the faucet mounting member 17 is fitted into the through hole 3.
[0014]
Further, the lower disk 9 has a male thread 46 on the upper peripheral surface thereof, which is engaged with a female thread 45 formed on the innermost peripheral surface of the lowermost part of the valve unit case 8.
[0015]
The mixed hot and cold water attachment 12 has the communication hole 48 in the center. That is, the communication hole 48 vertically penetrates 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. To do.
[0016]
The upper large-diameter portion 10 has a pair of notches 50 and 51 having a peripheral surface cut out. This guides the hot water supply pipe 100 and the water supply pipe 101 from the through hole 3 through the pipe insertion hole 16 of the faucet mounting member 17 to the hot water introduction hole a and the inlet of the water introduction hole a, respectively. 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. Accordingly, the hot water introduction hole a communicating with the hot water supply pipe 100 (the water introduction hole a communicating with the water supply pipe 101) is not located immediately below the outlet, and the inlet is displaced from the position of the outlet. As shown by the dotted line in FIG. Further, in order to make the outlet of the mixed hot water outlet hole b communicate with the communication hole 48 of the mixed hot water attachment 12, the outlet is not located directly below the inlet, and the outlet is displaced from the position of the inlet. As shown by a solid line in FIG. That is, the introduction holes a, a and the lead-out hole b intersect in the lower disk 9.
[0017]
Next, a configuration in which the water discharge elbow 15 rotates without abutting directly above the faucet mounting member 17 will be described.
[0018]
The lower small diameter portion 11 of the mixed hot water attachment 12 is provided with an annular groove 60 in the upper portion of the peripheral portion (see FIG. 1) and an O-ring 67 in the lower portion, while the upper peripheral surface of the water discharge elbow 15. Has a pair of elongated holes 61, 61 (see FIG. 2) at the same height.
[0019]
Further, the water discharge elbow 15 has a lock / communication hole 68 that allows the water discharge pipe 13 to be locked in a state of being inclined upward and outward, and a vertical hole 69 that communicates with the lock / communication hole 68. .
[0020]
Further, the outer diameter of the lower small diameter portion 11 is set to be substantially equal to the inner diameter of the water discharge elbow 15, and the lower small diameter portion 11 is fitted into the vertical hole 69 of the water discharge elbow 15 from the upper side of the water discharge elbow 15. It is configured.
[0021]
Then, in a state where the lower small diameter portion 11 is fitted in the vertical hole 69, the end portions 80a and 80b are inserted into the elongated holes 61 and 61 of the water discharge elbow 15, and the ends of the end portions 80a and 80b are mixed hot water. The water discharge elbow 15 is locked to the annular groove 60 of the attachment 12, thereby preventing the water discharge elbow 15 from falling on the faucet mounting member 17, and the water discharge elbow around the axis of the lower small diameter portion 11. A half ring body 80 is provided in which 15 can rotate by a predetermined angle (rotation angle). The rotation angle varies depending on the lengths of the end portions 80a and 80b of the ring body, but in any case does not exceed 180 °.
[0022]
Next, a connection mechanism for connecting the water discharge pipe 13 to the water discharge elbow 15 will be described.
[0023]
The water discharge pipe 13 has an annular groove 82 and an annular protrusion 83 in which an O-ring 81 is fitted in order from the upstream side to the rear end part 13b, while the connection ring body 84 is inserted into the water discharge pipe body slightly downstream from the intermediate part. A pair of protruding claws 88 and 89 sandwiching the periphery of the hole 36 is provided.
[0024]
As described above, the connection ring body 84 is fitted into the rear end portion 13b of the water discharge pipe 13. The rear end surface 36c of the connection ring body 84 abuts on the annular protrusion 83, and the projection claws 88 and 89 The connection ring body 84 is locked by sandwiching the periphery of the insertion hole 36 of the water discharge pipe body. In the state where the water discharge pipe 13 is fitted in the locking / communication hole 68 of the water discharge elbow 15 (see FIG. 3B), the annular protrusion 83 abuts on the ring protrusion 83 so that the water discharge elbow 15 While being in contact with the front surface 14a of the locking hole portion 14, the O-ring 81 is fitted into the inner peripheral surface of the locking hole portion 14, so that a sealing state is secured, and the water discharge pipe 13 is firmly connected to the water discharge elbow. 15 can be supported.
[0025]
Thus, the water discharge pipe 13 is configured to be detachable from the water discharge elbow 15 via the connection ring body 84. Therefore, when the O-ring 67 of the mixed hot water attachment 12 is deteriorated and the sealing performance is deteriorated to cause water leakage or the like, the O-ring 67 can be easily replaced. That is, the operation of removing the water discharge pipe 13 from the water discharge elbow 15 via the connection ring body 84 without performing a time-consuming operation such as disassembling the faucet body 6 and then removing the water discharge elbow 15. Can be exchanged.
[0026]
【The invention's effect】
In this invention, the faucet attachment member having a pipe insertion hole for inserting the hot water supply pipe and the water supply pipe is fixedly installed on the attachment plate portion in a state of covering the through hole provided in the attachment plate portion such as the sink or the wash bowl of the sink. And a press plate for vertically connecting the lower disk for fixing the valve unit and the faucet mounting member, and being fixed to the lower surface of the lower disk between the lower disk and the faucet mounting member, 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 from the hole to the hot water introduction hole and the water introduction hole through the pipe insertion hole, An attachment for mixed hot water in which a communicating hole for mixed hot water penetrating the upper large diameter part and the lower small diameter part vertically is formed in order to communicate with the mixed hot water outlet hole of the lower disk; The water discharge elbow has a locking hole portion for locking the water discharge pipe in the periphery, and is fitted around the lower small diameter portion so as to be rotatable about its axis with respect to the lower small diameter portion. Therefore, without using a conventional water faucet mounting foot such as copper or brass, the hot water supply channel, the water supply channel and the mixed hot water channel can be easily and inexpensively used. Can be formed.
[0027]
In addition, since the water discharge pipe is detachably attached to the water discharge elbow, maintenance such as O-ring replacement can be easily performed, and the water discharge pipe does not have to be fixed to the faucet body using brazing as in the past. Because it is good, the cost is further reduced.
[0028]
Furthermore, since the flow path of the hot / cold mixed water communicating with the water discharge pipe is formed in the faucet body, heat from the flow path of the hot / cold mixed water can be prevented from being transmitted to the surface.
[Brief description of the drawings]
FIG. 1 is an overall configuration explanatory view 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 the water discharge pipe to the water discharge elbow in the embodiment.
FIG. 4 is a diagram illustrating a configuration of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... One-hole mixing plug, 2 ... Water faucet mounting plate part, 3 ... Through-hole, 7 ... Valve unit, 9 ... Lower disk, 12 ... Mixed hot water attachment, 13 ... Water discharge pipe, 15 ... Water discharge elbow, 17 ... Faucet mounting member, 18 ... press plate.

Claims (1)

In a single lever type mixer tap inserted and fixed in a through-hole formed in a mounting plate such as a sink of a sink or a wash bowl, a hot water introduction hole communicating with the hot water supply pipe, a water introduction hole communicating with the water supply pipe, It has a mixed hot water outlet hole, a lower disk for mounting and fixing the valve unit, a pipe insertion hole for inserting the hot water supply pipe and the water supply pipe, and fixed to the mounting plate portion so as to cover the through hole. While providing a press plate that connects the faucet mounting member up and down, between the lower disc and the faucet mounting member, is fixed to the lower surface of the lower disc, the hot water of the hot water through the pipe insertion hole from the through hole An upper large diameter portion and a lower small diameter portion having notches for guiding the hot water supply pipe and the water supply pipe leading to the introduction hole and the water introduction hole, respectively, communicated with the mixed hot water outlet hole of the lower disk. For this purpose, there is an attachment for mixed hot water in which a communicating hole for mixed hot water penetrating the upper large-diameter portion and the lower small-diameter portion up and down is formed, and a locking hole for locking the water discharge pipe to the peripheral portion in a cylindrical shape A single-lever type mixing plug characterized by having a water discharge elbow that fits around the lower small-diameter portion so as to be rotatable about its axis with respect to the lower small-diameter portion.

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