JPH04145298A - Piping cover - Google Patents

Abstract

PURPOSE:To secure such a piping cover that is lockable with one touch and also simple in removal by fitting one side of cylindrical piping covers in a connection coupling and the other side in a sleeve pipe, respectively, in a piping structure which has the connecting coupling at the end of pipe body and a bellowslike sleeve pipe is fitted in the pipe body. CONSTITUTION:A socket 12 or a connecting coupling is connected to an interval between both pipe bodies 10 and 11, and a sleeve pipe 13 is fitted in this pipe body 10. A tip 14 of the sleeve pipe 13 is cut off for this connecting work, and an interspace is produced in a gap with the socket 12, but a piping cover 15 with length being enough to cover this spatial length is preset to the tip 14 of this sleeve pipe 13 and, after these pipe bodies 10 and 11 are connected to the socket 12, the piping cover 15 is slid toward the socket 12, covering it with the piping cover 15. It is attached to the tip of the sleeve pipe in advance, and then only slid to some extent, with protection and thermal insulation of the connection part to the full and, what is more, it is easily removable, thus not only convenient at time of execution but also it shows excellent workability in particular from the standpoint of maintenance.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Application) The present invention relates to a piping cover used for transporting water, hot water, etc., and mainly relates to a piping cover suitable for application to plastic pipes.

(Prior art) In recent years, in high-rise housing, etc., pipes for transporting water, hot water, etc. are not buried in concrete walls, but the space between the concrete surface and the floating floor is used to expose the pipes as they are on the concrete surface. In recent years, the method of installing pipes has been adopted.

In order to protect the pipe or to provide a heat insulating effect around the pipe, a plastic pipe cover or sheath pipe is fitted around the pipe.

However, when connecting the piping, the tip of the sheath tube must be cut off.

Therefore, in order to protect the part where the sheath tube has been cut off, another member must be placed there.

For this reason, in particular, urethane foam, expanded polystyrene, or the like is used as a heat insulating material to wrap around the missing portion of the sheath tube, or a heat insulating material such as glass wool is wrapped around the missing part of the sheath tube.

All of these are to be fixed later with adhesive tape or the like.

Another method is to use the same kind of sheath tube as the one used, cut it vertically, fit it into the missing part of the sheath tube, and fix it with adhesive tape or the like.

Although FIG. 1 shows an example in which tube bodies 1 and 2 are connected, it may be assumed that tube body 1 is under the floor and tube body 2 is raised above the floor.

However, in this case, the connection is made, for example, by a bimale socket 3, which is a type of connection joint, but although the sheath tube 4 is fitted into the tube body 1, the tip of the sheath tube 4 is inserted into the socket in order to connect to the socket 3. 3, the sheath tube 4 will be cut out by about 10 to 50 cm.

This cutout is a necessary space for connection,
The part without the sheath tube must be treated with heat insulating material or the like.

Figure 2 shows this part of the pipe body 1 with the urethane foam 5.
3 shows an example in which a heat insulating treatment is applied, and FIG. 3 shows an example of a single urethane foam 5 as a heat insulating material.

In this example, the urethane foam 5 is divided into two parts, and a concave groove 6 of almost the same shape as the tube body 1 is formed in the center, and after this is applied, it is fixed with adhesive tape or the like (not shown). .

FIG. 4 shows a separate part, and shows a short sheath tube 7 applied to this part in place of the urethane foam 5, which is vertically divided 8, and is used to attach the short sheath tube to the tube body 1. 7
This is then fitted with adhesive tape or the like to secure it in place.

(Problem) The present invention aims to improve the conventional technology, which requires time and effort in construction, and can be fixed with one touch without the need for post-work such as taping, and is also easy to remove for maintenance. The purpose is to provide a piping cover that can be easily installed.

(Structure) As a result of intensive development for the above-mentioned purpose, the present invention has solved the problem by employing the following means.

That is, in a piping structure in which a connecting joint is provided at the end of a pipe body, and a bellows-shaped sheath pipe is fitted into the pipe body, one end of the pipe body is fitted with the connecting joint, and the other end is fitted with the sheath pipe. The cylindrical piping cover preferably has a locking protrusion on its inner circumferential surface.

(Function) In the present invention, the pipe cover according to the present invention is attached in advance to the cut-off tip of the sheath pipe, and the pipe body is connected to the connection joint, and then the pipe cover is slid,
It is fixed by covering one end of the pipe cover over the joint, and preferably, in order to fix the pipe cover, a protrusion is provided on the inner circumferential surface of the pipe cover relative to the joint or the sheath pipe,
This completes the fixing.

Therefore, in the present invention, the thickness of the pipe cover can be the same as or slightly larger than that of the sheath pipe, and the protrusions can be ring-shaped, papillary-shaped, or bellows-shaped similar to the sheath pipe. Possible examples include the following.

In the case of the former type of protrusion, if it is fixed with the sheath tube, ring-shaped or papillary protrusions are formed at a pitch of about 1 to 3 relative to the bellows of the sheath tube. This makes it easy to fix.

Furthermore, it is also possible to form fixing protrusions by bending both ends of the piping cover inward.

Note that the pipe cover of the present invention is manufactured from a material such as rubber, urethane, or vinyl chloride.

FIG. 5 shows a conceptual diagram of the basic form of the present invention, in which a socket 12, which is a connecting joint, is connected between a pipe body 10 and a pipe body 11, and a sheath pipe 13 is connected to this pipe body 10. It is fitted.

The tip 14 of the sheath pipe 13 is cut off for this connection work, creating a space between it and the socket 12, but a pipe cover 15 with a length sufficient to cover the length of this space is used to cover this space. It is fitted in advance into the tip 4 of the sheath tube 13, and after the tube bodies 10 and 11 are connected to the socket 12,
As shown in FIG. 6, the piping cover 15 is slid toward the socket 12, and the socket 12 is
It is covered with.

Although not shown, a protrusion for fixing to the bellows of the sheath pipe 13 is provided on the inner periphery of the pipe cover 15.

(Concrete example) The present invention will be explained in more detail below with reference to the drawings.

FIG. 7 is a partially cutaway side view of a pipe cover made of vinyl chloride according to the first embodiment of the present invention.

In the figure, 21 is a body part that fits on the outer peripheral surface of a sheath tube (not shown), and 22 is a part of a joint cover connected to this body part 21. Note that the thickness of the pipe cover is approximately 0.1 to 5 mm, and in this example, the thickness is 1 mm.

This example is applied when the connecting joint (not shown) has a slightly smaller diameter than the sheath pipe, and therefore the joint cover part 22 has a slightly smaller diameter than the body 21 of the piping cover. .

Two sets of two protrusions 23 are provided on the inner peripheral side of the body portion 21, and these are for fitting and fixing to the bellows of the sheath tube.

FIG. 8 shows an enlarged cross-sectional end of this protrusion. A height of about 1 to 3 mm is sufficient for this protrusion.

As described above, the protrusions 23 may be ring-shaped or papillary-shaped protrusions arranged at desired intervals in the radial direction of the pipe cover, but in this example, annular protrusions are shown. It is.

Further, it is preferable that both ends of the piping cover are formed with protrusions 24 directed slightly inward as shown in FIG. The joint cover part 22 is used to cover the socket, etc., and its tip is fitted onto the outer surface of the socket and fixed.

As described above, the protrusions 23 of the body 21 fit into the bellows of the sheath tube, and the distance between the protrusions 23 and 23 is preferably set to a multiple of the pitch of the bellows of the sheath tube.

In this piping cover, the outer surface of the joint is covered with the joint cover part 22 by sliding on the outer periphery of the sheath pipe in the direction of the joint, but at this time, the body part 21 near the joint cover part 22 is By squeezing, the joint cover portion 22 expands in diameter and can be easily fitted into the joint.

FIG. 10 shows a second embodiment of the piping cover of the present invention,
In this example, the connecting joint is used for something larger in diameter than the sheath pipe. Therefore, the joint cover portion 22 has a larger diameter than the body portion 21. Other than this, it is the same as the previous example.

(effect) This is because the present invention employs the above configuration.

By attaching this to the tip of the sheath pipe in advance and then sliding it, the connection part is completely protected and kept warm, and it can also be easily removed, making it convenient during construction. Not only that, but it also exhibits particularly excellent workability in terms of maintenance.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an example of a conventional connection between pipe bodies, Fig. 2 is a side view when heat insulation treatment is performed using urethane foam, Fig. 3 is a perspective view of this urethane foam, and Fig. 4
The figure is a perspective view of a short sheath tube used in place of the urethane foam, Figures 5 and 6 are conceptual diagrams of the basic type of the present invention, and Figure 7 is a piping cover of the first embodiment of the present invention. 8 is an enlarged cross-sectional end of the protruding portion of the body, and FIG. 9 is an enlarged cross-sectional end of the protruding portion of the cover end.
FIG. 10 is a partially cutaway side view of a piping cover in a second embodiment of the piping cover of the present invention. 1.2.10, 11... Tube body 3.12... Socket 4.13... Sheath tube 5... Urethane foam 7... Short sheath tube 15... Piping cover 21,...Body part 22,...Joint cover part 23, 24...Protrusion

Claims (2)

[Claims] (1) In a piping structure in which the pipe body has a connection joint at the end and a bellows-shaped sheath pipe is fitted to the pipe body, one side is fitted to the connection joint and the other side is fitted to the sheath pipe. A cylindrical pipe cover. (2) The cylindrical piping cover according to claim 1, further comprising a locking protrusion on the inner peripheral surface of the cylindrical piping cover.