JPH01322032A - Sheath pipe double piping structure permitting free accommodation of fluid pipe - Google Patents

Abstract

PURPOSE:To facilitate the installation, inspection and repair works for a joint, etc. by making a fluid pipe into a free accommodation structure by engagement- connecting two sheath pipes which have different thickness and the edges of which are connected with a fluid feeding part and a consumption part, by a necessary length in slidable ways. CONSTITUTION:The top edge parts of two sheath pipes 10 and 20 which have different thickness and are fixed onto each edge of a fluid feeding part 100 for hot and cold water, gas, etc. and a joint accommodation box 200 are superposed at one part on the back of a wall, and a double pipe structure is obtained. These sheath pipes are engagement-connected in slidable ways by a necessary length, and a flexible fluid pipe 30 is inserted into the sheath pipes 10 and 20. Therefore, when a joint 50, etc. are installed, inspected, or repaired, the edge part can be pulled outside the wall without cut-separating one edge of the fluid pipe 30.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides a flexible fluid pipe for passing fluids such as hot water, water, gas, etc., which is installed behind a wall, and then installed at a fluid consumption part at the end of the fluid pipe. A sheath pipe in which the fluid pipe can be freely taken in and taken out by pulling out the end of the fluid pipe from inside the sheath pipe behind the wall for attachment of a fitting, faucet, gas cock, etc. to the end of the fluid pipe, or for subsequent inspection, repair, or replacement. It concerns a double piping structure.

(Prior Art) Conventionally, as shown in FIG. 4, a sheath pipe (110) is pre-piped behind a wall from a fluid supply section (100) for hot water, water, gas, etc. to a fluid consumption section such as a joint storage box (200). ) A piping structure has been proposed in which a flexible fluid pipe (130') is inserted into the pipe. In this conventional piping structure, the attachment of the fitting to the end of the fluid pipe (130) or the attached fitting (150), the faucet,
When inspecting, repairing, or replacing gas cocks, etc., remove the sheath pipe (1
10) A fluid pipe (130) fixed to the fluid supply part (100) in order to draw out the end of the fluid pipe (130) from inside to the back of the wall.
130) had to be cut off at one end. Therefore, the present applicant has filed the 5th patent application in Japanese Patent Application No. 165940/1986.
We have proposed a fluid tube protector (400) that is approximately in the shape of a stomach bag and has a slack storage section as shown in the figure, and even though the fluid tube (130) is guided by a sheath tube (110) of a certain length, the fluid pipe (130) from inside the sheath pipe (110) without cutting off one end of the fluid pipe (130).
) is being pulled out behind the wall.

(Problems to be Solved by the Invention) However, the fluid pipe protector has problems in that it is expensive to manufacture and difficult to use frequently.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide two sheath tubes in which a fluid tube can be freely put in and taken out, which has a very simple and inexpensive structure and allows the end of the fluid tube to be pulled out from inside the sheath tube behind the wall without cutting off one end of the fluid tube. The purpose is to provide a heavy piping structure.

(Means for Solving the Problems) In order to achieve the above object, in the sheath pipe double piping structure in which the fluid pipe can be freely taken out and put in, the sheath pipe holding part provided in the fluid supply part or the fluid consumption part is two sheath tubes of different thicknesses with fixed proximal ends and through which flexible fluid tubes are inserted;
and a connecting part formed by slidably engaging and connecting the tips of both sheath tubes to each other by a predetermined length behind the wall,
It is characterized by the fact that the end of the fluid tube can be taken in and out of the sheath tube.

(Function) With the above-described configuration, the tips of two sheath tubes of different diameters are connected and piped behind the wall, and the fluid tube is inserted into the sheath tubes for piping. Attachment of a fitting to the end of a fluid pipe is carried out by sliding the tip of one sheath pipe within the other sheath pipe when inspecting, repairing or replacing an attached fitting, faucet, gas cock, etc. The end of the fluid tube can be pulled out from inside the sheath tube behind the wall, and the end of the fluid tube can be stored inside the sheath tube.

(Example) Next, an example in which the present invention is embodied in a fluid pipe for hot water will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the proximal end of a corrugated sheath tube (lO) is fixed to the sheath tube holding section (101) of the fluid supply section (100) for hot water, water, etc. The distal end of the sheath tube (10) is attached to the wall with respect to the distal end of the sheath tube (20) fixed to the sheath tube holder (201) of the joint storage box (200), which is a sheath tube holder constituting the fluid consumption part. It is slidably engaged and connected on the back side. The outer diameter of the sheath tube (10) is smaller than the outer diameter of the sheath tube (20), and the inner surface of the sheath tube (2o) is smooth. (20
) may be corrugated, or both sheath tubes (10, 20
) may also be smooth. Furthermore, both sheath tubes (10, 20) may be corrugated as long as the size of the waves in the sheath tubes is properly set and sliding between the sheath tubes (10, 20) can be ensured.

A flexible fluid pipe (30) for passing fluid such as hot water or water is installed inside the two sheath pipes (10, 20), and the tip of the fluid pipe (30) houses the joint. A joint (50) is connected within the box (200).

Now, in order to install the fluid pipe (30) using the double sheath pipes (10, 20), the joint storage box (200), etc., first, as shown in FIG. Identifying the proximal end of the sheath tube (10) in the sheath tube holding part (101),
Further, the proximal end of the sheath tube (20) is fixed to the sheath tube holding portion (201) of the joint storage box (200) behind the wall. Then, the sheath tube (10) is attached to the distal end of the sheath tube (20).
The distal end portions are slidably engaged and connected. At this time, the engagement between the distal end of the sheath tube (10) and the sheath tube (20) is the first
Leave a small amount as shown in the picture. In addition, both sheath tubes (10
, 20), if a water stop material such as an O-ring is placed at the connection part,
Fluid can be prevented from leaking from inside the sheath tube (10, 20).

After erecting a wall following the piping of both sheath pipes (10, 20), a flexible fluid pipe (30) is inserted and piped into these two sheath pipes (10, 20), By connecting the joint (50) to the tip of the fluid pipe (30), the piping work of the fluid pipe (30) can be easily completed.

When attaching the fitting (50) to the fluid pipe (30), or when inspecting, repairing or replacing the attached fitting (50), the fluid pipe (50) is inserted from behind the wall as shown in FIG. 3
0) Pull out the tip. Then, as shown in FIG. 3 from the state shown in FIG. 1, the distal end of the sheath tube (10) slides within the other sheath tube (20) toward the joint storage box (200).

In other words, this is a very simple and inexpensive configuration in which two sheath tubes (10, 20) of different thicknesses are provided with a connecting portion that is slidably engaged and connected, without having to separate one end of the fluid tube (30). The end of the fluid tube (30) can be pulled out from inside the sheath tube (10, 20) to the back of the wall. Moreover, the sheath tube (10, 20
) into which the end of the fluid tube (30) connected to the fitting (50) can be accommodated.

Note that this invention is not limited to the above embodiments,
The gist of the present invention can be embodied in a fluid pipe for connecting a gas cock or the like as a fluid pipe, or embodied and carried out in a feed piping from a fluid consuming part to another fluid consuming part, etc. You may make changes as appropriate without departing from the above.

(Effects of the Invention) As described in detail above, the present invention provides a fluid pipe with a very simple and inexpensive structure in which a connecting portion is provided in which two sheath pipes of different diameters are slidably engaged and connected. It is possible to pull out the end of the fluid tube from inside the sheath tube to the back of the wall without cutting off one end, and the end portion of the fluid tube can be stored inside the sheath tube, which is an excellent effect.

[Brief explanation of the drawing]

Fig. 1 is a side view of a sheath pipe double piping structure that embodies the present invention and allows fluid pipes to be taken in and out freely, and Fig. 2 is a side view of the sheath pipe double piping structure showing a state in which two sheath pipes are connected. , Fig. 3 is a side view of the sheath pipe double piping structure showing the state where the end of the fluid pipe is pulled out from the sheath pipe, Figs. 4 and 5 respectively show conventional examples, and Fig. 4 shows the sheath pipe and A side view of the fluid pipe, etc., and FIG. 5 is a sectional view of essential parts of the sheath pipe and fluid pipe protector. Explanation of symbols 10.20...sheath pipe, 30...fluid pipe, 1
00 -- Fluid supply section, 200 -- Joint storage box. Patent applicant Mirai Kogyo Co., Ltd.

Claims (1)

[Claims] (1) Two sheath tubes of different thicknesses, the proximal ends of which are fixed to the sheath tube holding section provided in the fluid supply section or the fluid consumption section, into which flexible fluid tubes are inserted, and the distal ends of both sheath tubes. A connection part formed by slidingly engaging and connecting to each other by a predetermined length at the back of a wall, and an end part of the fluid pipe can be freely taken in and taken out from inside the sheath pipe. Double sheath tube piping structure.