JP2002317474A - Piping connecting mechanism for water faucet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piping connecting mechanism for a water faucet having a compact and low-priced flow control mechanism. SOLUTION: This piping connecting mechanism for a faucet is provided with a fixing member 27 for fixing the flow control mechanism 2, 7, 8, 14, 19, 20 and 25 not having a water shut-off function to a wall 26 or the floor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a faucet pipe connection mechanism.

[0002]

2. Description of the Related Art At the time of piping work for water supply and hot water supply, as shown in FIG. 7, a water supply main pipe 61 and a hot water supply main pipe 63 from a hot water supply facility 62 are drawn indoors to supply water to the water supply main pipe 61 and the hot water supply main pipe 63. Headers 64 and 65 for hot water supply, respectively, and each of the headers 64 and 65 and each water stopcock 67, 65 located upstream of a kitchen sink or a hot / water mixer tap 66 in a washroom, for example. 68
Water supply pipe 69 and hot water supply pipe 70 connecting resin pipe 7 such as cross-linked polyethylene or cross-linked polybutene.
1 is inserted through a bellows-shaped sheath tube 72, so that in the case of water leakage or the like, the sheath tube 72 is left as it is and the connection of both ends of the resin pipe 71 is simply released. This is convenient because the resin pipe 71 can be taken out from the inside 72 and replaced. 79 and 80 are resin pipes 6
9 is a joint for connecting the upstream end of each of the headers 9 to each of the headers 64 and 65. Reference numeral 81 denotes a stopper for fixing the supply pipes 69, 70.

As shown in FIG. 5, the present applicant connects a water stop cock body 73 of a water stopcock 67 (68) fixed to a kitchen sink or lavatory wall 84 with a fixing member 85. A pipe connection mechanism is proposed in which the downstream end 71a of the resin pipe 71 can be connected to the water stopcock 67 (68) only by using the cap nut 82 without using a special joint separately by connecting the cylindrical portion 74 for use. (See the drawings and specification of Japanese Patent Application No. 11-342112). 86 is a handle for adjusting the flow rate of the water stopcock 67 (68).

[0004]

By the way, water stopcock 67
(68), as shown in FIG. 6, a main body 73 having a partition wall 97 in which a valve port 97a is formed, and a flow control handle 8
6, a valve element 90, and a seat portion (valve seat) 91 forming a valve port 97a. Further, the valve element 90 has an internal screw formed in an opening 92 located on a side surface of the main body 73. n
A spindle 95 having a large-diameter portion 93 formed with an external thread m screwed to the outer end M, and having a serration 94 on the outer periphery of the outer end M to which a flow adjustment handle 86 is fitted;
An axially central portion of the spindle 95 is cut out from the end face N ′ of the inner end N of the spindle 95 to a large diameter portion 93, and a bottomed coaxial shaft insertion hole 96 formed by the axial movement of the spindle 95. A top body 98 for opening and closing the valve port 97a to adjust the flow rate or stop water, and a spring body 99 interposed between the top body 98 and the large diameter portion 93, the top axis of the top body 98 100, an annular packing 101 is inserted from the tip end side, and a hexagon nut 102
The annular packing 101 is attached by the.

As described above, since the number of components for water shutoff and flow adjustment including the flow adjustment handle 86 is large, the water stopcock 67 (68) is expensive.

The water stopcock main body 73 has an opening 92 necessary for attaching a flow rate adjusting handle 86 and a partition wall 97 having a valve port 97a formed therein.
Since the flow path passing through 7a was bent, it had to be large.

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and an object of the present invention is to provide a faucet pipe connecting mechanism having a compact and inexpensive flow rate adjusting mechanism.

[0008]

In order to achieve the above object, the present invention provides a flow control mechanism having no water stopping function interposed between a main pipe of water or a main pipe of hot water and a faucet. A fixing member for fixing the flow rate adjusting mechanism to a wall or a floor is provided.

In another aspect of the present invention, a supply pipe, a flow control mechanism having no water shutoff function, and an introduction pipe are provided in this order between a main pipe of water or a main pipe of hot water and a faucet. At least the supply pipe is constituted by a bellows-shaped sheath pipe and a resin pipe guided and protected on a piping path by the sheath pipe, while the flow rate adjusting mechanism is provided at one end with the introduction pipe. An outlet communicating with the supply pipe at the other end through a joint for a resin pipe, and further provided with a connecting member for connecting the introduction pipe and a flow control mechanism, and the flow control mechanism Is fixed to the wall or the floor.

[0010]

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

In FIG. 1 to FIG. 3, reference numeral 1 denotes a water (or hot water) supply pipe which is provided downstream of a water (or hot water) main pipe drawn indoors. (Not shown) and the flow control mechanism 2 having no water blocking function. Hereinafter, the water supply pipe 1 will be described. Since the hot water supply pipe has the same configuration as the water supply pipe 1, its description is omitted.

The water supply pipe 1 is a resin pipe 3a of, for example, a crosslinked polybutene pipe for water service or a crosslinked polyethylene pipe for water service, which is guided and protected by a sheath pipe 3 on a pipe route. The water supply pipe 1 is fixed at an appropriate position by fixing means such as a band.

Reference numeral 4 denotes a flexible water inlet pipe, for example, a hot-water mixer tap 6 (an example of a water tap) such as a one-hole mixer tap installed on a horizontal sink 5 in a kitchen sink or a lavatory. The flow control mechanism 2 having no water function is connected. The introduction pipe 4 and the flow rate adjusting mechanism 2 are connected by a connecting member 40.

Hereinafter, a characteristic configuration of the present invention will be described.

(1) First, the flow rate adjusting mechanism 2 will be described. The flow rate adjusting mechanism 2 has a nipple-shaped flow rate adjusting body 8 having external threads m and n formed at both ends. The flow control body 8 has a straight central through hole 9, and includes male screw portions 10 and 11 at both ends and a flow control portion 12 having a larger diameter and located between the male screw portions 10 and 11. The diameter of the central through-hole 9 is the same for the male screw portions 10 and 11, and the diameter of the central through-hole 9 that passes through the flow rate adjusting portion 12 is set smaller than this diameter.

The male screw portion 10 located on the downstream side of the flow control main body 8 has an outlet 2a communicating with the introduction pipe 4, while the male screw portion 11 located on the upstream side of the flow control main body 8 is provided. Has an inlet 2b that communicates with the resin pipe 3a via a joint 7 for the resin pipe (see, for example, Japanese Patent Application No. 2000-339934, the drawings).

Reference numeral 14 denotes a flow rate adjusting screw member provided on the flow rate adjusting portion 12 so as to be displaceable in the radial direction, and is provided so as to close the water flow path i formed by the central through hole 9.

That is, as shown in FIG. 3A, the screw member 14 for adjusting the flow rate has a large diameter portion 15 and a rod-shaped small diameter portion 16.
On the other hand, the flow rate adjusting section 12 has a fitting hole 17 into which the large diameter portion 15 is displaceably fitted and a fitting hole 18 into which the small diameter portion 16 is displaceably fitted. Reference numeral 19 denotes an O-ring fitted into an annular groove provided on the inner peripheral surface of the fitting hole 17, and reference numeral 20 denotes an O-ring fitted into an annular groove provided on the inner peripheral surface of the fitting hole.

Further, the fitting hole 18 has a female screw 21 on the inner peripheral surface between the O-ring 20 and the central through hole 9. On the other hand, the small diameter portion 16 has a male screw 22 screwed to the female screw 21.

Reference numeral 23 denotes a tool insertion groove provided on the end face of the large-diameter portion 15, and reference numeral 24 denotes a flow control screw member 14 when the flow control screw member 14 is set in the flow control unit 12. An annular groove into which an E-ring 25 (see FIGS. 3 (B) and 3 (C)) for preventing removal from coming out of the groove 12 is fitted.

The joint 7 for the resin pipe, the flow control main body 8, the flow control screw member 14, the O-rings 19 and 20
And the E-ring 25 constitute the flow rate adjusting mechanism 2.

(2) Next, a mechanism for fixing the flow rate adjusting mechanism 2 to, for example, a kitchen sink or a wall 26 of a washroom will be described.

Reference numeral 27 denotes a fixing member, and reference numeral 28 denotes a female screw portion 28 for connecting the fixing member 27 to the flow rate adjusting mechanism 2. The female screw portion 28 is formed so as to protrude laterally from the joint 7 for the resin pipe. 28a is a cap nut.

On the other hand, the fixing member 27 is
, A support washer 30 connected to the other end of the horizontal support bar 29, and a support washer 30 attached to the support washer 30 on a wall 26 of a kitchen sink or lavatory. It consists of a wood screw 31 to be tightened.

For example, the flow rate introduced into the hot / water mixer tap 6 such as a one-hole mixer tap installed on the horizontal mounting surface section 5 of a kitchen sink or a washroom is set by setting a tool in the tool insertion groove section 23. It can be adjusted by rotating the adjusting screw 14. For example, when the flow rate adjusting screw member 14 is rotated in the S direction from the state of the maximum introduction flow rate shown in FIG.
Since the large diameter portion 15 crosses the central through hole 9, the introduction flow rate can be reduced as shown in FIG.

On the other hand, when performing maintenance and inspection of the hot and cold water mixing tap 6, the main tap of the pipe can be closed so that water does not flow through the flow path i.

The flow rate adjusting mechanism 2 of the present invention includes a water stopping member 73, 86, 95, 98, 99, 101, 1 as in the prior art.
02 is unnecessary and the cost can be reduced.

Further, since the flow passage passing through the valve port 97a is bent, the flow control mechanism 2 of the present invention is replaced with a straight central through hole instead of the conventional water stopcock body 73 which had to be large. The provision of the holes 9 enables downsizing.

FIG. 4 shows the introduction pipe 4 and the flow rate adjusting mechanism 2 '.
2 shows a second embodiment of the present invention, which is configured to be connected using a clip 50. In FIG. 4, FIG.
3 are the same or equivalent.

Reference numeral 42 denotes a relay pipe which is connected to the upstream end of the water introduction pipe 4. Reference numeral 43 denotes a main body of the flow control mechanism 2 ′ that is connected to the relay pipe 42 and has an outlet 2 a that communicates with the introduction pipe 4.

The outer surface of the water inlet pipe 4 is pressure-resistant protected by, for example, a stainless steel net. Reference numeral 44 denotes a metal ring fitted to the upstream end of the water introduction pipe 4. The ring 44 is caulked with the water introduction pipe 4 inserted into the downstream end of the relay pipe 42, whereby the relay pipe 42 is inserted. And the connection with the water introduction pipe 4 are strengthened.

The relay pipe 42 is formed by, for example, pressing a pipe material made of brass. That is, a wavy portion 42a for preventing the water introduction tube 4 from falling off is formed on the outer periphery of the downstream side of the relay tube 42, and a flange 45 and an inner diameter enlarged portion 46 are formed on the upstream end.

Two O-rings 48, 48 are embedded in the outer periphery of the connection portion 47 of the flow control body 43 with the relay pipe 42. A flange 49 is formed upstream of the O-rings 48,48.

Reference numeral 50 denotes a clip, which is formed by bending a single band-shaped metal member. Although not shown, the clip has an insertion portion, an opening, and a pair of long holes. And it has elasticity as a whole.

On the other hand, reference numeral 51 denotes a cover for preventing the clip 50 from falling off. , From the cover body 52,
The clip body 50 is constituted by a pair of opening prevention pieces (not shown) that come into contact with the respective open ends of the clip 50 from the outer peripheral surface side.
Of the clip 50 can be prevented, and the open ends can prevent the open ends of the clip 50 from opening outward.

Further, the two Os
A cap portion having a protection opening 55 for protecting the rings 48, 48 at the time of packing, shipping, etc. is provided inside, so that the O-rings 48, 48 are also used as protection covers.

7 'is a main body 4 of the flow rate adjusting mechanism 2'.
3 is a joint for a resin pipe connected to the inlet 2b.

Also in this embodiment, the cost can be reduced by eliminating the need for the conventional water stopping members 73, 86, 95, 98, 99, 101 and 102.

Also, since the flow passage passing through the valve port 97a is bent, the flow control mechanism 2 'of the present invention is replaced with a conventional water stopcock body 73 which has been forced to be large in size.
Since it has the straight central through hole 9, compactness can be realized.

The present invention can be applied to a case where the flow control mechanism is fixed to the floor. Further, the present invention can be applied to a faucet such as tap water.

[0041]

According to the present invention, there is an effect that it is possible to provide a pipe connecting mechanism for a hot and cold water mixing tap having a compact and inexpensive flow rate adjusting mechanism.

That is, according to the present invention, the number of parts can be reduced by not having the water stopping function, the cost can be reduced, and the flow rate adjusting mechanism can be downsized.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory view showing a first embodiment of the present invention.

FIG. 2 is a diagram showing a use state of the embodiment.

FIG. 3A is a configuration explanatory view showing a state before a flow rate adjusting screw is set on a flow rate adjusting main body in the embodiment. (B) is a structural explanatory view showing a state in which a flow rate adjusting screw is set to the flow rate adjusting main body in the embodiment. (C) is a structural explanatory view showing a flow control state of the flow control mechanism in the embodiment.

FIG. 4 is a configuration explanatory view showing a second embodiment of the present invention.

FIG. 5 is a diagram showing a use state of a conventional example.

FIG. 6 is an explanatory diagram of a main part configuration of a conventional example.

FIG. 7 is a perspective view showing a use state of a conventional example.

[Explanation of symbols]

2 ... flow rate adjusting mechanism, 3a ... resin pipe, 4 ... water supply pipe,
7 Joint for resin pipe, 8 Flow control body, 14 Screw member for flow control, 19, 20 O-ring, 25 E-ring, 26 Wall, 27 Fixing member.

Claims (4)

[Claims] 1. A flow control mechanism having no water stopping function is interposed between a main pipe of water or a main pipe of hot water and a faucet, and a fixing member for fixing the flow control mechanism to a wall or a floor is provided. A pipe connection mechanism for a faucet. 2. A supply pipe, a flow control mechanism having no water stop function, and an introduction pipe are provided in this order between the main pipe of water or the main pipe of hot water and the faucet, and at least the supply pipe is provided While comprising a bellows-shaped sheath tube and a resin pipe guided and protected on the piping path by the sheath tube, the flow control mechanism has an end communicating with the introduction tube at one end, and an end communicating with the introduction tube at the other end. Has an inlet communicating with the supply pipe through a joint for a resin pipe, and further has a connection member for connecting the introduction pipe and a flow rate adjustment mechanism, and for fixing the flow rate adjustment mechanism to a wall or a floor. A pipe connecting mechanism for a faucet, wherein a fixing member is provided. 3. The faucet pipe connection mechanism according to claim 1, wherein the fixing member is detachably attached to the flow rate adjustment mechanism. 4. The apparatus according to claim 1, wherein said introduction tube is formed of a flexible tube.
A pipe connecting mechanism for a water faucet according to claim 3.