JP2001115511A - Piping joint mechanism of mixing faucet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piping joint mechanism of a mixing faucet capable of reducing costs. SOLUTION: A piping joint mechanism is so constituted that introduction pipes 4 and 5 for introducing hot water and cold water in a mixing faucet 3 are connected to supply pipes 1 and 2 for supplying cold water or hot water to the introduction pipes 4 and 5, projected members 6 having a channel 6' inside of them are provided in one of an upstream part of the introduction pipes 4 and 5 and a downstream part of the supply pipes 1 and 2, recessed members 7 having a channel 7' inside of them are provided in the other, the projected members 6 are fitted in the recessed members 7, the projected members 6 and recessed members 7 are prevented from being slipped off by means of an non slip member 8, the supply pipes 1 and 2 is formed of bridge formation polybutene pipe or bridge formation polyethylene pipe, at the same time, the downstream part 22 of the supply pipes 1 and 2 can be screwed in the upstream part 21 of the projected members 6 provided in the downstream part of the supply pipes 1 and 2 or the recessed members 7, and the supply pipes 1 and 2 and introduction pipes 4 and 5 are not equipped with a cut-off faucet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping connection mechanism for a hot and cold water mixing tap.

[0002]

2. Description of the Related Art Water temperature is adjusted by turning a lever to the left and right, water flow is adjusted by turning a lever up and down, and hot and cold water mixing without a water and hot water flow adjusting mechanism is incorporated. A plug (mainly a vertical water mixing tap) has a hot water inlet pipe and a water inlet pipe at its upstream part. This hot water introduction pipe is for introducing hot water sent from the hot water supply main pipe via the hot water supply pipe to the hot water mixing tap, and the water introduction pipe is sent from the water supply main pipe via the water supply pipe. This is for introducing water into the hot and cold water mixing tap. Conventionally, the hot water supply pipe and the water supply pipe are each made of a steel pipe, and each has a water stopcock.

[0003]

However, in the above-described conventional configuration, since the hot water supply pipe and the water supply pipe are provided with a water stopcock, the cost is increased.

The present invention has been made in view of the above-mentioned matters, and an object of the present invention is to provide a piping connection mechanism of a hot-water mixing tap which can reduce the cost.

[0005]

In order to achieve the above object, a pipe connecting mechanism for a hot and cold water mixing tap according to the present invention comprises: an inlet pipe for introducing hot water and water into the hot and cold water mixing tap; A mechanism for connecting a supply pipe for supplying water or hot water, wherein a convex member having a flow path therein is provided in one of an upstream part of the introduction pipe and a downstream part of the supply pipe, On the other hand, a concave member having a flow path therein is provided, the convex member is fitted into the concave member, and the convex member and the concave member are prevented from coming off by a retaining member,
Further, the supply pipe may be formed of a cross-linked polybutene pipe or a cross-linked polyethylene pipe, and the downstream part of the supply pipe may be screwed to a convex member or a concave material provided at a downstream part of the supply pipe. The pipe and the inlet pipe do not have a water stopcock (claim 1).

According to the above configuration, it is possible to provide a piping connection mechanism for a hot and cold water mixing tap which can reduce the cost.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are a perspective view and a longitudinal sectional view schematically showing a configuration of a piping connection mechanism D of a hot and cold water mixing tap according to one embodiment of the present invention, and FIG. 3 is an enlarged longitudinal sectional view of a main part. . 1 is a hot water supply pipe, 2 is a water supply pipe, and the hot water supply pipe 1 is connected to a downstream side of a hot water supply main pipe (not shown) via a hot water supply pipe header (not shown). The water supply pipe 2 is connected to a downstream side of a water supply main pipe (not shown) via a water supply pipe header (not shown).

The hot water supply pipe 1 and the water supply pipe 2 are, for example, elastic resin pipes such as a water supply polybutene pipe or a water supply cross-linked polyethylene pipe, both of which are fixed at appropriate positions by fixing means 20. I have.

Reference numeral 3 denotes a single-lever type hot and cold water mixing tap, which has a hot water introduction pipe 4 and a water introduction pipe 5 at an upstream portion.
The hot water supply pipe 4 and the water supply pipe 5 are connected to the hot water supply pipe 1 and the water supply pipe 2 via a pipe connection mechanism D, respectively. The hot / water mixer tap 3 is fixed to the upper surface of the mounting table T by mounting means T 'provided at its lower part. Further, between the hot water supply pipe 1 and the hot water introduction pipe 4 and between the water supply pipe 2 and the water introduction pipe 5, a water stoppage for adjusting the flow rate of hot water and water sent to the hot / water mixer tap 3. No stopper is provided.

The mixing tap 3 has a lever 3a and a discharge portion 3b. When the lever 3a is turned to the left as viewed from the front, the temperature of the mixed water from the discharge portion 3b becomes high, and the lever 3a is viewed from the front. When turned to the right, the temperature of the mixed water from the discharge section 3b becomes low. When the lever 3a is lowered, the flow rate of the mixed water from the discharge section 3b decreases, and when the lever 3a is raised, the flow rate of the mixed water from the discharge section 3b increases. In other words, the hot and cold water mixing tap 3 can adjust the temperature of the mixed water discharged from the discharge part 3b by rotating the lever 3a left and right, and by rotating the lever 3a up and down. The flow rate of the mixed water discharged from the discharge section 3b can be adjusted.

Next, the configuration of a pipe connection mechanism D used to connect the hot water supply pipe 1 and the hot water introduction pipe 4 will be described. Since the same pipe connection mechanism D is used for the connection between the water supply pipe 2 and the water introduction pipe 5, the description thereof will be omitted. The pipe connection mechanism D is provided at a downstream portion of the hot water supply pipe 1 and has a convex member 6 having a flow path 6 ′ therein, and is provided at an upstream portion of the hot water introduction pipe 4 and has a flow path 7 ′ therein. And a retaining member 8 for preventing the convex member 6 and the concave member 7 from coming off from each other.

The convex member 6 is a substantially cylindrical member. The convex member main body 9 and the convex member main body 9 are arranged in this order from the downstream side.
Flange 10 having an outer diameter larger than the outer diameter of the groove, groove 1 having an outer diameter smaller than the outer diameter of the flange 10
1 is provided. Seal members 12 are provided on the outer periphery of the convex member body 9. further,
The upstream portion 21 of the convex member 6 is connected to the downstream portion 22 of the hot water supply pipe 1.
Can be screwed on. In addition, 2
3 is a cap nut.

The concave member 7 is also a substantially cylindrical member, and has a flange portion 13 having an outer diameter substantially equal to the outer diameter of the flange portion 10 in order from the upstream side.
Having an outer diameter smaller than the outer diameter of
Is provided with a concave member main body 14 having an inner diameter substantially equal to or slightly larger than the outer diameter of the concave member.

The retaining member 8 is made of metal, and the flange member 10 of the convex member 6 and the flange portion 13 of the concave member 7 are sandwiched so that the convex member 6 and the concave member 7 can be removed. The two holding portions 1 each having a slit 15 ′ in the center and having a substantially arc shape in plan view.
5 and 15 and a retaining member main body 16 connecting the holding portions 15 and 15. The other end of each of the holding portions 15 whose one end is held by the retaining member main body 16 is a handle portion 15a, and the two handle portions 15a, 15a
Are formed such that their tips extend away from each other. Further, the holding portions 15, 15 have appropriate elasticity, and the flange portions 10, 1 are provided in the respective slits 15 '.
By fitting and locking the 3, the convex member 6 and the concave member 7 can be fixed so as not to come off. With such a configuration, connection and disconnection of the hot water supply pipe 5 and the hot water introduction pipe 8 can be easily performed.

Reference numeral 16 denotes a cover for preventing the retaining member 8 from coming off unexpectedly.

Next, the operation of the pipe connection mechanism D will be described. First, the downstream part 22 of the hot water supply pipe 1 was screwed to the upstream part 21 of the convex member 6, and the convex member 6 fixed on the downstream side of the hot water supply pipe 1 was provided at the upstream part of the hot water introduction pipe 4. In order to fit the concave member 7, it is only necessary to insert the convex member main body 9 into the concave member main body 14 and bring the flange portion 10 of the convex member 6 into contact with the flange portion 13 of the concave member 7. Then, by locking the retaining member 8 to the flange portion 10 and the flange portion 13, the convex member 6 and the concave member 7 can be fixed so as not to come off. After fixing in this way,
Hold the cover 16 by the handle portions 15a, 1
By covering the protrusion 5a, the fixing of the convex member 6 and the concave member 7 by the retaining member 8 can be made more reliable.

The pipe connection mechanism D is not limited to the above-described configuration. For example, the convex member 6 is provided on the hot water introduction pipe 4,
The concave member 7 may be provided in the hot water supply pipe 1.

The piping connection mechanism D having the above configuration does not have a water stopcock from the supply pipe to the introduction pipe.
It can be formed at low cost, and since the supply pipe is made of an elastic resin pipe instead of a steel pipe, it is possible to improve workability such as installation of pipes.

[0019]

As described above, according to the present invention, it is possible to provide a pipe connecting mechanism for a hot and cold water mixing tap which can reduce the cost.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing a configuration of a piping connection mechanism of a hot and cold water mixing tap in one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view schematically showing the configuration of the embodiment.

FIG. 3 is an enlarged longitudinal sectional view of a main part schematically showing the configuration of the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hot water supply pipe, 2 ... Water supply pipe, 3 ... Hot water mixing tap, 4 ... Hot water introduction pipe, 5 ... Water introduction pipe, 6 ... Convex member, 7 ... Concave material, 8 ...
Retaining member, 21 ... Upstream part, 22 ... Downstream part, D ... Piping connection mechanism of hot and cold water mixing tap.

Claims (1)

[Claims] 1. A mechanism for connecting an inlet pipe for introducing hot water and water into a hot and cold water mixing tap, and a supply pipe for supplying water or hot water to the inlet pipe, wherein the inlet pipe is provided. A convex member having a flow path therein is provided in one of the upstream portion and the downstream portion of the supply pipe, and a concave material having a flow channel therein is provided in the other, and the convex member is fitted into the concave material. The stopper member prevents the convex member and the concave member from coming off, and the supply pipe is formed of a cross-linked polybutene pipe or a cross-linked polyethylene pipe, and is provided at a downstream portion of the supply pipe. A pipe for a hot and cold water mixing tap, wherein the downstream part of the supply pipe can be screwed to the upstream part of the member or the concave material, and the supply pipe and the introduction pipe do not have a water stopcock. Attach mechanism.