JP4312660B2 - Header piping unit construction method and header piping unit used in the construction method - Google Patents

Description

  The present invention relates to a construction method of a header piping unit for performing hot water supply and hot water supply piping in an apartment house such as a private house and an apartment, an office, a store, and the like, and a header piping unit used in the construction method.

  Saddle pipe header with one end connected to the header side and the other end connected to the water supply and hot water supply equipment side, a flexible water or hot water pipe made of polyethylene or polybutene, etc. In this case, from the viewpoint of workability at the construction site, based on the piping diagram, the pre-assembled resin pipe, joint and sheath pipe are wound up in a loop and packed as a piping unit. A method of carrying out piping construction by bringing this into a construction site is performed (see Patent Document 1).

  In order to save labor, it has also been proposed to carry in a construction site as a header piping unit including a header. However, since such header piping units are wrapped in a loop and packaged, they are bent and difficult to deploy on the floor, causing problems such as overlapping and interference. It has also been proposed to attach a display indicating the deployment order to the sheath pipe of the header pipe unit so that the pipe work can be performed (see Patent Document 2).

In addition, resin pipes and sheath pipes are cut to a predetermined length along the piping route based on the piping diagram at the construction site. At the construction site, the installation position on the equipment connection side such as a faucet box is determined. However, in practice, the sheath tube (the one containing the resin tube, the same shall apply hereinafter) is often too long or too short to match, so the sheath tube is pushed or pulled in the length direction. However, the final position adjustment is currently underway, but the adjustment work is difficult due to the interference between the pipes and the situation of the piping location, and the piping work often does not proceed as expected. .
JP-A-5-172287 JP-A-8-1110099

  The present invention has been made to solve the above-described problems, and its purpose is to facilitate position adjustment when the sheath pipe is expanded and piped at a construction site, and reliably and reliably. An object of the present invention is to provide a header pipe unit construction method that enables efficient construction and a header pipe unit used in the construction method.

The construction method of the header piping unit according to claim 1 for achieving the above object comprises a header in which a flexible resin pipe is fused to the header pipe, and a sheath pipe for housing the resin pipe is assembled. Uses a header piping unit for water supply or hot water supply in which a high-rigidity cap that has the rigidity to hold the shape without deformation when gripped by hand is slidably inserted between the resin pipe and the sheath pipe This is a construction method for water supply and hot water supply piping, in which the header is temporarily fixed in front of the actual attachment position in advance, and the joint is connected by cutting the resin pipe on the instrument connection side to protrude from the actual attachment position on the instrument. Then, while adjusting the position by moving the sheath tube containing the resin tube, the joint connected to the resin tube on the device connection side is fixed to the actual mounting position on the device. To, and returning the header to the actual mounting position.

  The construction method of the header piping unit according to claim 2 is the construction method according to claim 1, wherein the header is temporarily fixed 50 to 150 mm before the actual attachment position, and the resin pipe on the instrument connection side is the dimension from the actual attachment position to the instrument. It is characterized by only protruding and cutting and connecting a joint.

A header piping unit according to claim 3 is a header piping unit for use in the construction method of the header piping unit according to claim 1 or 2, wherein a header in which a flexible resin pipe is fused to the header pipe is provided. provided, along with assembling the sheath tube for accommodating the resin pipe, and characterized in that said high rigidity cap for shielding the resin pipe in the vicinity of the header pipe and slidably inserted between the resin tube and the sheath tube To do.

  According to the present invention, when a sheath pipe is expanded and piped at a construction site, it is possible to easily perform the position adjustment work on the pipe connection side, in particular, the equipment connection side such as a faucet box, for reliable and efficient construction. Provided are a header pipe unit construction method and a header pipe unit used in the construction method.

  In the present invention, as shown in FIG. 1, the header pipe 2 for water supply or hot water supply is provided with a header H obtained by fusing a flexible resin pipe 3 with a fusion part F, and the resin pipe 3 is attached thereto. In the case where the sheath tube 4 to be accommodated is assembled, a high-rigidity cap 5 as shown in FIG. 2 is further inserted between the resin tube 3 and the sheath tube 4 in the vicinity of the header tube 1 as shown in FIG. The header piping unit 1 for water supply or hot water supply is configured. Usually, a large number of protrusions 9 extending in the circumferential direction are juxtaposed on the outer periphery of the sheath tube 4. In FIG. 1, one sheath tube 4 is shown with the protrusion 9 omitted.

Rigid cap 5, the cap 8 the head 6 is composed of a main body portion 7 that is fitted inserted between the tube 3 and the sheath tube 4 is fitted to the end portion E _S of the header H side of the sheath tube 4 (Refer to FIG. 4), and as shown in FIG. 3, the resin tube 3 and the sheath tube 4 are slidably inserted in the length direction (arrow direction in FIG. 3). The high-rigidity cap 5 is a tubular cap having rigidity that can retain its shape without being deformed when strongly grasped by hand, and the head 6 and the main body 7 of the high-rigidity cap 5 are integrally formed. These outer peripheral portions are preferably provided with a number of protrusions extending in the circumferential direction, like the sheath tube 4.

In the construction method of the header piping unit according to the present invention, the header piping unit 1 shown in FIG. 3 wound up in a loop shape is packed as a piping unit and brought into a construction site. The end E _J of the resin pipe 3 on the appliance connection side is cut to a predetermined length according to the piping diagram at the construction site.

Unpack, when performing a pipe according piping diagram expand sheath tube, first, as shown in FIG. 5, advance the header H from the actual mounting position P1 to the instrument connection side by a predetermined distance L ₁ before the position P2 Temporarily fix to. In this case, it is desirable to make the resin tube 3 longer than the sheath tube 4 and attach the resin tube 3 on the appliance connection side opposite to the header H.

Then, as shown in FIG. 6, cut the ends E _J of the tube 3 of the instrument connection side, such as faucets box is projected from the actual mounting position relative to the instrument 10, for connecting the joint 11. Thereafter, while adjusting the position by moving the sheath tube 4, the resin tube 3 is pulled in the direction of arrow B in FIG. 6, and the joint 11 connected to the resin tube 3 on the device connection side is connected to the device as shown in FIG. At the actual mounting position, the apparatus is mounted on a device 10 such as a faucet box, and the header H is returned from P2 to the actual mounting position P1 shown in FIG.

  When the sheath pipe is expanded and piped, a tubular cap called a heat shield cap is usually fitted to the fused portion F between the header pipe 2 and the resin pipe 3. When the header H is temporarily fixed, if the heat shield cap fitted to the fusion part F is grabbed and pulled, the resin tube 3 near the fusion part F is easily deformed. May break. In the present invention, in order to solve the above-mentioned problems, as the heat shield cap, the thickness is increased and the rigidity is high enough to hold the shape without being deformed, such as being crushed when strongly gripped by hand. A rigid cap 5 is used. Therefore, when temporarily fixing the header H, even if the cap 5 fitted to the fusion part F is grasped and pulled, the cap 5 is not crushed or deformed, so that the resin tube 3 breaks in the vicinity of the fusion part F. Can be solved.

When the high-rigid cap 5 is pulled when the header H is returned to the actual attachment position P1, after checking the resin tube 3 for breakage in the vicinity of the fusion part F, as shown in FIG. The high-rigidity cap 5 is slid to the position of the resin pipe 3 fusion part F of the header pipe 2 to shield the resin pipe 3 exposed between the header pipe 2 and the sheath pipe 4 in the vicinity of the header pipe 2. Heat is shielded from outside air, and the cap 8 is fitted to the end E _S of the sheath tube 4.

  If the high-rigidity cap 5 remains fitted to the fusion part F when the header H is returned to the actual attachment position P1, the high-rigidity cap 5 is slid and the fusion part After checking the presence or absence of breakage of the resin tube 3 in the vicinity of F, the resin tube 3 is fitted into the fusion part F.

In the construction method of the header piping unit of the present invention, the temporary fixing position P2 of the header H is preferably 50 to 150 mm before the actual mounting position P1 (L ₁ = 50 to 150 mm in FIG. 5). It is most preferable in practice to temporarily fix it to a distance of about 100 mm. The protruding length from the actual attachment position of the resin pipe on the appliance connection side to the appliance (L _{2 in} FIG. 6) is preferably matched to L ₁ selected in the temporary fixing of the header H (L ₂ = 50 to 150 mm, Most preferably L ₂ = approximately 100 mm). These distances (L ₁ ) and lengths (L ₂ ) are appropriately selected according to the situation at the construction site.

As a method for projecting the resin pipe on the appliance connection side by a predetermined length (L ₂ ) from the actual attachment position, for example, as shown in FIG. A resin pipe 12 having a length L ₂ that can be fitted is used, and this resin pipe 12 is placed on the resin pipe 3 protruding from the instrument 10 (in FIG. 8, the resin pipe 12 is indicated by a chain line). Thus, as shown by a one-dot chain line in FIG. 8, the resin tube 3 is cut.

  In the present invention, for example, the header pipe 2 is polybutene, the resin pipe 3 is polybutene, the high-rigid cap 5 is polyethylene, and the cap 8 is polypropylene.

It is a partial top view which shows the piping unit which assembled | attached the sheath pipe | tube which accommodates a resin pipe and a resin pipe | tube to a header pipe | tube. It is a top view which shows the highly rigid cap inserted in the header piping unit of this invention. It is a partial top view which shows the header piping unit of this invention. It is a top view which shows the header vicinity after the construction by this invention. It is a figure which shows the position of the header before construction in the construction method of this invention, and after construction. It is a partial front view which shows the instrument connection side before construction in the construction method of this invention. It is a partial front view which shows the instrument connection side after construction in the construction method of this invention. In the construction method of this invention, it is a partial front view which shows the Example of the method of making the resin pipe | tube on the instrument connection side protrude only a predetermined length from an instrument.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Header piping unit 2 Header pipe 3 Resin pipe 4 Sheath pipe 5 High-rigidity cap 6 Head part 7 Main body part 8 Cap 9 Projection 10 Instrument 11 Joint 12 Resin pipe (In order to cut the resin pipe which protruded from the instrument to predetermined length Jig)
H Header F Fused part E _S Saddle pipe header side end E _J Resin pipe instrument connection side end

Claims (3)

A header with a flexible resin tube fused to the header tube, a sheath tube for housing the resin tube, and a rigidity that can hold the shape without deformation when firmly gripped by hand This is a construction method that uses hot or hot water supply header piping units with a high-rigidity cap slidably inserted between the resin pipe and the sheath pipe. Temporarily fix it in front, and connect the fitting by connecting the fitting by connecting the joint by protruding the resin tube on the device connection side from the actual mounting position on the device, and then adjusting the position by moving the sheath tube containing the resin tube. The header piping unit is characterized in that the joint connected to the resin pipe on the side is fixed to the actual mounting position on the instrument and the header is returned to the actual mounting position. Construction method of the door. The header is temporarily fixed 50 to 150 mm before the actual attachment position, the resin tube on the instrument connection side is cut by projecting the dimension from the actual attachment position with respect to the instrument, and the joint is connected. The construction method of the header piping unit according to claim 1. A header piping unit for use in the construction method for a header piping unit according to claim 1 or 2, comprising a header in which a flexible resin pipe is fused to the header pipe, and a sheath for accommodating the resin pipe. A header piping unit, wherein the pipe is assembled and the high-rigidity cap for shielding the resin pipe in the vicinity of the header pipe is slidably inserted between the resin pipe and the sheath pipe.

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