JPH08270848A - Piping structure in counter - Google Patents

Abstract

PURPOSE: To improve the connecting workability of pipings and the reliability of water stopping, by making the piping structure in a one-touch joint structure which consists of a plug with flange installing a water stop ring on the outer periphery, and a clamp holding the plug and the flunge of a socket each other. CONSTITUTION: On both ends of a bellows form flexible pipe 7A made of a metal, a plug 18 with a flunge 17 is fixed through a calking collar 19 respectively, and an O-ring 20 is installed on the periphery of the plug 18. The plug 18 is inserted in a socket 15 so as to abut the flanges 16 and 17, and a clamp 21 made of a metal is installed from the outer side so as to combine one end of the flexible pipe 7A and a wall penetrating coupling 2A. The clamp 21 is an almost, Ω-shape member with a pair of arms 22, and it has window holes 23 to receive the flunges 16 and 17. The arms 22 are made deformable elastically in the approaching direction and the separating direction each other. Consequently, the inner pipings can be connected easily, and the water stopping property of the connections is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping structure inside a counter in a unit room such as a unit bathroom and a unit toilet room.

[0002]

2. Description of the Related Art In a unit room such as a unit bathroom, a counter is provided along a wall surface, and a faucet is installed on the front surface or the upper surface of the counter. The water supply pipes (including the hot water supply pipes) connected to this faucet are external pipes that are routed outside the unit room (for example, the space between the wall panel of the unit room and the wall surface of the building). , With internal piping that is routed inside the counter.

The external pipe is fixed to a wall through joint fixed to a wall panel of the unit room.

On the front or upper surface of the counter, the faucet is fixed to the counter such that the water supply inlet of the faucet directly projects into the counter, or a wall penetration joint fixed to the counter. On the other hand, the water inlet of the faucet is fixed by screwing or the like.

The wall penetration joint of the wall panel is connected to the water inlet or the wall penetration joint of the counter by an internal pipe.

As the internal pipe, a flexible pipe (hereinafter sometimes referred to as a flexible pipe) is often used so that it can be easily swirled in a narrow counter.

A conventional construction example in which an internal pipe made of a flexible pipe is connected to a water supply end (for example, a wall through joint of a wall panel) and a water receiving end (for example, a wall through joint of a front surface of a counter) with reference to FIG. explain.

The wall penetration joint 2 and the nut 3 are attached to the wall panel 1.
It is stuck in. The external pipe 4 is connected to the outdoor side of the wall penetration joint 2 by screwing.

A single taper nipple 5 around which a seal tape (not shown) is wound around the inside of the wall penetration joint 2.
Is screwed. The cap nut 8 at one end of the flexible tube 7 is screwed into the one-side tapered nipple 5 via the packing 6.

A through joint 10 is fixed to a counter front plate 9 by a nut 11. The cap nut 13 at the other end of the flexible tube 7 is screwed into the through joint 10 via the packing 12.

A leg pipe 14 of a faucet is screwed into the inside of the unit room of the penetration joint 10.

[0012]

In the conventional internal piping structure described above, all the joints are screw joints, and when joining, the work of tightening with a spanner or the like is required. Since the space inside this counter is extremely narrow, the workability of tightening with such a wrench is poor.

When the water is stopped by the sealing tape, the reliability of the water varies depending on the skill of the operator.

It is an object of the present invention to provide a piping structure for a counter which has good workability for connecting pipes and has extremely high reliability in stopping water regardless of the skill of the operator.

[0015]

According to a first aspect of the present invention, there is provided a piping structure for a counter in a counter provided along a wall surface of a unit room, the water supply end of the wall surface and a front or upper surface of the counter. In a piping structure in a counter in which a water end is connected with a flexible pipe, a connection between the water supply end and the water receiving end and the flexible pipe, a plug with a flange having a water stop ring mounted on the outer periphery, and the plug are The one-touch joint includes a socket with a flange to be inserted and a clamp that clamps the flanges of the plug and the socket.

According to a second aspect of the piping structure of the counter, in the first aspect, the flexible pipe is made of metal, and the plug is connected to the flexible pipe by a caulking collar.

[0017]

The internal pipe can be easily connected to both the water supply end and the water reception end by inserting the plug into the socket and sandwiching both flanges with the clamp.

Since a water stop ring (for example, an O ring) is attached to this plug, the water stop between the outer circumference of the plug and the inner circumference of the socket is also good.

When a flexible tube made of metal is used, the flexible tube can be plastically deformed and drawn around. By plastically deforming the flexible tube in this way, it is possible to prevent the generation of a force tending to incline the plug axis with respect to the socket axis at the connecting portion between the socket and the plug.

If an external force for inclining the plug with respect to the socket is continuously applied to the plug, the O-ring or the like may be deformed and the water blocking performance may be deteriorated.

On the other hand, when the flexible pipe is plastically deformed, the axial center lines of the socket and the plug are always aligned in a straight line, the deformation of the ring such as the O-ring is prevented, and the waterproof property is excellent for a long time. Is demonstrated.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an exploded side view showing a piping structure in a counter according to an embodiment, FIG. 2 is an exploded perspective view showing an essential part of a piping structure in a counter according to an embodiment, and FIG. 3 is a plug and a flexible cable. It is sectional drawing which shows the connection structure with a pipe.

In this embodiment, the end of the wall penetration joint 2A provided on the wall panel 1 of the unit room inside the counter is a socket 15 having a flange 16.
A flange 1 is provided on both ends of the flexible bellows 7A made of metal.
A plug 18 with 7 is fixed via a caulking collar 19. An O-ring 20 is attached to the outer circumference of the plug 18.

The plug 18 is inserted into the socket 15, the flanges 16 and 17 are brought into contact with each other, and the clamp 21 is externally fitted to connect one end of the flexible pipe 7A and the wall penetrating joint 2A.

The clamp 21 is of a substantially Ω shape having a pair of arms 22, and the arm 22 is provided with a window hole 23 for receiving the flanges 16 and 17.
The clamp 21 is made of metal, and the arms 22 and 22 are elastically deformable toward and away from each other.

The end of the wall penetration joint 10A attached to the counter front plate 9 inside the counter is also a socket 26 having a flange 25. The plug 18 on the other end side of the flexible tube 7A is inserted into the socket 26, and the clamp 21 is externally fitted to connect the wall penetrating joint 10A and the other end of the flexible tube 7A.

The flexible pipe 7A and the wall penetration joint 2A, 1
Connection with 0A is extremely easy with one touch. Therefore, the workability of pipe connection in a narrow space in the counter is significantly improved.

Further, the flexible pipe 7A and the wall through joint 2A, 1
Since the O-ring 20 blocks water at the connecting portion with 0A, water blocking is extremely good regardless of the skill of the operator.

Further, the flexible tube 7A is made of metal, and can be flexibly plastically deformed when being drawn. Therefore, no external force or almost no external force for tilting the plug is applied to the connecting portion between the plug and the socket after connection. As a result, the O-ring 20 is prevented from being deformed and excellent water stopping performance is exhibited for a long period of time.

In this embodiment, as shown in FIG. 3 (1), a resin tube 27 is fitted to the rear end of the plug 18 having a constriction, and the caulking collar 19 is attached to the rear end of the plug 18 together with the flexible pipe 7A. Then, the flexible pipe 7A is fitted to the flexible pipe 7A by caulking the caulking collar 19 as shown in FIG. 3 (2).
And the plug 18 are connected.

According to the present invention, as shown in FIG.
Both the rear end and the end of the flexible pipe 7B are straight pipes,
Insert the rear end of the plug 18A into the end of the flexible tube 7B,
It may be brazed. Of course, the method of connecting the plug and the flexible pipe is not limited to these.
However, the method of using the crimping color as shown in FIG.
It is suitable because it is simple and has excellent durability.

[0032]

As described above, according to the piping structure of the counter of the present invention, the internal pipe (flexible pipe) can be very easily connected to the water supply end and the water reception end even inside the narrow counter. In addition, the water stopping property at the connection between the water supply end and the water receiving end and the flexible pipe is also very good.

In the piping structure of the counter according to the second aspect, this water stopping property becomes extremely good over a long period of time.

[Brief description of drawings]

FIG. 1 is an exploded side view showing a piping structure of a counter according to an embodiment.

FIG. 2 is an exploded perspective view showing a main part of the piping structure of the counter according to the embodiment.

FIG. 3 is a cross-sectional view showing a connection structure between a plug and a flexible pipe.

FIG. 4 is a sectional view showing another example of connection between a plug and a flexible pipe.

FIG. 5 is a side view showing a conventional structure.

[Explanation of symbols]

 1 Wall Panel 2, 2A Wall Penetration Joint 7, 7A, 7B Flexible Tube 9 Counter Front Plate 15, 26 Socket 16, 17, 25 Flange 18, 18A Plug 19 Caulking Color 20 O-ring 21 Clamp

Claims (2)

[Claims] 1. A piping structure in a counter provided along a wall surface of a unit room, in which a water supply end of the wall surface and a water reception end of a front surface or an upper surface of the counter are connected by a flexible pipe. In the structure, a connection between the water supply end and the water reception end and the flexible pipe is provided, a plug with a flange having a water stop ring mounted on the outer periphery, a socket with a flange into which the plug is inserted, and these plugs and sockets. A piping structure for a counter, which is a one-touch joint including a clamp that clamps flanges. 2. The piping structure for a counter according to claim 1, wherein the flexible pipe is made of metal, and the plug is connected to the flexible pipe by a crimping collar.