JP2005048398A - Piping connection structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a piping connection structure capable of absorbing a designing error, a construction error and an insertion margin when a water supply pipe joint used for a buried faucet or the like is connected to a metal pipe such as a copper pipe or the like. <P>SOLUTION: In the connecting structure connecting the metal pipe 23 such as the copper pipe or the like to the water supply pipe joint 20 with a connecting member 21, the metal pipe 23 is mounted to the connecting member 21 in an expansible manner. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connection structure between a water supply pipe joint such as an embedded water tap and a connection member attached to a metal pipe such as a copper pipe.
[0002]
[Prior art]
As shown in FIG. 7, a connection member 21a having a flange 21b around it is connected to the tip of the metal tube 23 to connect the water supply pipe joint 20a used in a conventional embedded faucet or the like and a metal tube 23 such as a copper tube. It is known to fix the flange 20b of the water supply pipe joint 20a and the flange 21b of the connecting member 21a, and fix the outer periphery thereof with a quick fastener 22 (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-151501
[Problems to be solved by the invention]
In such a case, the metal pipe 23 is usually dimensioned by a design based on the mounting position of the water supply pipe joint 20a and the like, and is often processed in advance to that dimension. However, when actually installed and constructed, the length of the metal pipe 23 may be excessive or insufficient with respect to the attachment position of the water supply pipe joint 20a. In this case, the work of cutting and bending the metal tube 23 is required at the construction site, and the work is complicated.
[0005]
In addition, when measuring the dimensions at the construction site and cutting the metal pipe 23, it is necessary to accurately measure the joint between the metal pipe 23 and the water supply pipe joint 20a, The work required a high level of skill. Of course, if not properly connected, water leakage and the like may occur.
[0006]
Further, when the connecting member 21a fixed to the tip of the metal pipe 23 is inserted into the water supply pipe joint 20a, there is an insertion allowance 27, so a copper pipe shape such as a greatly curved copper pipe is arranged. Was limited.
[0007]
The present invention has been devised in view of the above points, and a design error in connecting a water supply pipe joint used for an embedded faucet or the like and a connection member attached to a metal pipe such as a copper pipe, An object of the present invention is to provide a pipe connection structure that can absorb construction errors and insertion allowances, that is, a pipe connection structure.
[0008]
[Means for Solving the Problems]
Invention of Claim 1 is a connection structure which connects the connection member attached to metal pipes, such as a copper pipe, and a water supply pipe coupling, Comprising: The said metal pipe is attached to the said connection member so that expansion-contraction is possible. It has the feature in being.
Therefore, when the metal pipe with little flexibility is used for an embedded faucet or the like, it is configured to solve the conventional problem that construction errors and insertion allowances cannot be absorbed.
The invention according to claim 2 is a connection structure in which a connection member attached to a metal pipe such as a copper pipe and a water supply pipe joint are connected by a quick fastener, and the metal pipe can be expanded and contracted with respect to the connection member. It is characterized by being attached to.
Therefore, by using the quick fastener, the construction work can be performed quickly, and the connection portion between the connection member and the water supply pipe joint can be firmly fixed.
In addition, in invention of Claim 1, the connecting member and the water supply pipe joint can also fix the collar part provided in each by bolting.
According to a third aspect of the present invention, the connection member has a substantially cylindrical shape having a flange portion, an O-ring is attached to the outer periphery of the front end portion, and the metal tube is prevented from falling off from the connection member at the rear end portion. It has the feature in having an omission prevention part.
Therefore, the water supply pipe joint and the metal pipe can be connected and fixed only by interposing the connection member between the water supply pipe joint and the copper pipe, and the effect of absorbing the construction error of the metal pipe can also be achieved. .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. Of course, the following embodiment is merely an example of the present invention, and the technical scope of the present invention is not limited to the following embodiment itself.
[0010]
FIG. 1 is a schematic view showing an external structure of an embedded faucet to which the present invention is applied, and FIG. 2 is a schematic view showing an internal structure of an embedded faucet to which the present invention is applied.
[0011]
As shown in FIG. 1, the embedded faucet 1 to which the present invention is applied is installed in a bathroom counter 2 as an example, and is connected to the embedded faucet installed in the counter 2. In addition, connection members 21 and 21 for connecting the water supply pipe joints 20 and 20 and the metal pipes 23 and 23 such as copper pipes are necessary.
[0012]
As an example of the embedded faucet 1, the water discharge temperature is adjusted using a temperature adjustment handle 3, the water discharge is selected using the water discharge handle 4, the amount of water discharge is adjusted, and the currant 5 is showered. There is a hot and cold water mixing faucet that switches the water discharge direction between the six.
[0013]
As shown in FIG. 2, the internal structure of the embedded faucet 1 is such that the faucet body 11 has a hot water connected portion 7a protruding leftward on the back side, and a connected portion for water supply on the right side of the back surface. 7b protrudes.
[0014]
Each connected portion 7a, 7b includes a check valve 8.
[0015]
Furthermore, the hot water connected portion 7 a is connected to the hot water inlet of the temperature adjustment mechanism 10 through the hot water supply passage 9, and the hot water supply connected portion 7 b is connected to the water inlet of the temperature adjustment mechanism 10 through the water supply passage 12. .
[0016]
The hot water supplied from the hot water inlet and the water supplied from the water inlet are made hot water at a desired temperature by the temperature adjusting mechanism 10 and flow out to the hot water flow path 13 through the hot water outlet of the temperature adjusting mechanism 10.
[0017]
Further, the hot water that has flowed out into the hot water flow channel 13 flows into the spout water mechanism 14, and the spout water mechanism 14 causes the hot water to flow out into the outflow passage 15 on the curran side that leads to the above-mentioned currant 5. The selection of whether to flow out to the shower-side outflow passage 16 leading to the shower 6, the selection of the stop water, and the adjustment of the discharge water amount are performed.
[0018]
FIG. 3 is a schematic view showing a pipe connection structure according to the first embodiment of the present invention. As shown in this figure, the water supply pipe joint 20 and the connection member 21 connected to the above-described embedded faucet 1 and the like are connected and fixed by a quick fastener 22, but the method of connecting and fixing will be described later. It is the same as the conventional one.
[0019]
A feature of the present invention resides in a structure for attaching a metal tube 23 such as a copper tube to the connection member 21. First, the connecting member 21 has a substantially cylindrical shape, a distal end portion 21a to which O-rings 24a and 24a are attached, a flange portion 21b fixed by a quick fastener 22, and a hollow portion 21c that functions as an adjustment allowance for the metal tube 23. And a disconnection prevention member 25b for preventing the metal tube 23 from falling off the connection member 21.
[0020]
On the other hand, an edge 23a is processed at the tip of the metal tube 23 so as to have a dimension corresponding to the inner diameter of the hollow portion 21c of the connection member 21, and a convex portion to which the retaining member 25a is fitted behind the edge 23a. 23b is formed.
[0021]
The connecting procedure of the connecting member 21 and the metal tube 23 formed as described above is as follows. After the O-ring 24b and the retaining member 25a are attached to the tip of the metal tube 23, this portion is used as the hollow portion 21c of the connecting member 21. Insert into. Finally, the female screw portion of the drop prevention member 25b inserted in advance in the metal tube 23 is screwed into the male screw portion 21d formed in the connection member 21, and the connection between the connection member 21 and the metal tube 23 is completed. To do.
[0022]
Therefore, the metal tube 23 is slidable in the longitudinal direction while maintaining a watertight structure inside the hollow portion 21c of the connection member 21, and the metal tube 23 is formed by the retaining member 25a and the retaining member 25b. The structure is such that the connection member 21 does not fall out.
[0023]
FIG. 4 is a diagram showing another embodiment (second embodiment) and shows an example applied to a water supply pipe joint 20 attached to a wall surface or the like as a water supply pipe joint. In 2nd Embodiment, it is the same as that of the above-mentioned embodiment except the point which is a form with which the water supply pipe coupling is attached to the wall surface etc. That is, as shown in FIG. 4, the water supply pipe joint 20 attached to the wall surface or the like by the screw 20c or the like and the connection member 21 are connected and fixed by the quick fastener 22; It is the same.
[0024]
First, the connecting member 21 has a substantially cylindrical shape, a distal end portion 21a to which O-rings 24a and 24a are attached, a flange portion 21b fixed by a quick fastener 22, and a hollow portion 21c that functions as an adjustment allowance for the metal tube 23. And a disconnection prevention member 25b for preventing the metal tube 23 from falling off the connection member 21.
[0025]
On the other hand, an edge 23a is processed at the tip of the metal tube 23 so as to have a dimension corresponding to the inner diameter of the hollow portion 21c of the connection member 21, and a convex portion to which the retaining member 25a is fitted behind the edge 23a. 23b is formed.
[0026]
The connecting procedure of the connecting member 21 and the metal tube 23 formed as described above is as follows. After the O-ring 24b and the retaining member 25a are attached to the tip of the metal tube 23, this portion is used as the hollow portion 21c of the connecting member 21. Insert into. Finally, the female screw portion of the drop prevention member 25b inserted in advance in the metal tube 23 is screwed into the male screw portion 21d formed in the connection member 21, and the connection between the connection member 21 and the metal tube 23 is completed. To do.
[0027]
Therefore, the metal tube 23 is slidable in the longitudinal direction while maintaining a watertight structure inside the hollow portion 21c of the connection member 21, and the metal tube 23 is formed by the retaining member 25a and the retaining member 25b. The structure is such that the connection member 21 does not fall out.
[0028]
FIG. 5 is a perspective view of the quick fastener 22 used in the pipe connection structure of the first and second embodiments. As described above, the O-rings 24 a and 24 a are attached to the distal end portion 21 a of the connection member 21. First, the distal end portion 21 a is inserted into the hollow portion 20 a of the water supply pipe joint 20 to form the water supply pipe joint 20. The flange portion 20b thus formed and the flange portion 21b formed on the connecting member 21 are brought into contact with each other.
[0029]
Next, the two flange portions 20b and 21b that are brought into contact with each other are fitted into a locking groove 22b provided in a fastening clip 22a of a quick fastener 22 formed by bending a leaf spring, so that the water supply pipe joint 20 and the metal pipe 23 are fitted. Are combined.
[0030]
In order to prevent the fastening clip 22a of the quick fastener 22 from falling off, a protector 26 that fits so as to cover the fastening clip 22a may be attached.
[0031]
The present invention has been described above based on the embodiments. However, it goes without saying that the above embodiments can be variously improved and modified without departing from the spirit of the present invention. Includes these improved variants.
[0032]
For example, in the above-described embodiment, an embedded faucet is cited as an application example of the present invention, but the present invention is naturally not limited to that applied to this, and a metal pipe and a water supply pipe joint Applicable to any place where the and are connected. As a specific example, as shown in FIG. 6, the branch pipe 31 branched from the main pipe 30 can be applied to a location where the water pipe fitting 21 of the wall-mounted faucet 50 is connected. Thereby, the design error, the construction error, and the insertion allowance that occur between the wall material and the main pipe 30 can be absorbed.
[0033]
In addition, the water supply pipe joint is not limited to one that is molded and attached separately from the embedded water faucet or the like as described in the above embodiment, but is applied to a joint part that is molded integrally with the embedded water faucet. It is also possible.
[0034]
【The invention's effect】
Invention of Claim 1 is a connection structure which connects the connection member attached to metal pipes, such as a copper pipe, and a water supply pipe coupling, Comprising: The said metal pipe is attached to the said connection member so that expansion-contraction is possible. Because it has the characteristic that it can absorb the design error, construction error and insertion allowance when connecting the connection member attached to the metal pipe such as copper pipe and the water supply pipe joint used for the embedded faucet etc. it can. Also, bending work, cutting work, and other construction work that requires skill can be omitted as much as possible.
[0035]
The invention according to claim 2 is a connection structure in which a connection member attached to a metal pipe such as a copper pipe and a water supply pipe joint are connected by a quick fastener, and the metal pipe can be expanded and contracted with respect to the connection member. Therefore, in addition to the effect of the first aspect of the invention, since the connection between the connecting member and the water supply pipe joint is easy, the construction work can be performed quickly and easily.
[0036]
According to a third aspect of the present invention, the connection member has a substantially cylindrical shape having a flange portion, an O-ring is attached to the outer periphery of the front end portion, and the metal tube is prevented from falling off from the connection member at the rear end portion. Since it has a feature of having a disconnection prevention part, it is possible to prevent water leakage from the connection location by the O-ring, and to perform adjustment to absorb the construction error and insertion allowance of the metal pipe by the substantially cylindrical connection member. The prevention part can prevent the metal tube from falling off the connection member.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an external structure of an embedded faucet to which the present invention is applied.
FIG. 2 is a schematic view showing the internal structure of an embedded faucet to which the present invention is applied.
FIG. 3 is a schematic view showing a pipe connection structure according to the first embodiment of the present invention.
FIG. 4 is a schematic view showing a pipe connection structure according to a second embodiment of the present invention.
FIG. 5 is a perspective view showing a quick fastener used in the pipe connection structure of the first and second embodiments.
FIG. 6 is a schematic view showing another example to which the present invention is applied.
FIG. 7 is a schematic diagram showing a connection structure of the prior art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Embedded faucet 2 Counter 3 Temperature control handle 4 Water discharge handle 5 Curran 6 Shower 7a Hot water connected portion 7b Water supply connected portion 8 Check valve 9 Hot water supply passage 10 Temperature adjusting mechanism 11 Water faucet body 12 Water supply path 13 Hot water flow path 14 Water discharge mechanism 15 Outflow path on the side of the curan 16 Outflow path on the shower side 20 Water supply pipe joint 20b (of the water supply pipe joint) Hook 20c Screw 21 for fixing) Connecting member 21a Tip portion 21b (for connecting member) Gutter portion 21c (for connecting member) Cavity 21d (for connecting member) Male screw portion 22 (for connecting member) Quick fastener 22a (for quick fastener) ) Fastening clip 22b (quick fastener) locking groove 23 (quick fastener) metal tube 23a (metal tube) edge 23b (metal tube) convex portions 24a, 24b O Prevention omission grayed 25a retainer member 25b member 26 protection 27 Plug Charge 30 main pipe 31 branch pipe

Claims (3)

A connection structure for connecting a connection member attached to a metal pipe such as a copper pipe and a water supply pipe joint, wherein the metal pipe is attached to the connection member so as to be extendable and contractible. Connection structure. A connection structure for connecting a connection member attached to a metal pipe such as a copper pipe and a water supply pipe joint with a quick fastener, wherein the metal pipe is attached to the connection member in an extendable manner. Characteristic piping connection structure. The connection member has a substantially cylindrical shape having a flange portion, an O-ring is attached to the outer periphery of the front end portion, and a disconnection preventing member for preventing the metal tube from falling off the connection member at the rear end portion The pipe connection structure according to claim 1 or 2, wherein

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