JP2005140226A - Piping construction method and pipe piece used therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that; there is no applicability because only fastening elements such as screws and bolts can be used for connection between a pipe piece (sleeve) and a duct pipe; work is time-consuming and lowers efficiency because a short pipe is occasionally necessary; there is a danger because work at a high altitude is required; and design and construction efficiency are restricted because bury work is required afterwards if an opening of a partition section is large. <P>SOLUTION: This piping construction method is for arranging a duct through an opening formed at a partition section of a wall, a floor and the like. The pipe piece integrally including a flange section of which edge section is inwardly bent at a substantially right angle is arranged in the opening. An end face flange of a duct component part is integrally fixed and connected to the flange section of the pipe piece by using a fastening element or a caulking. The pipe piece is formed by bending both opening edges of a tubular main body inwardly at a substantially right angle and a flange section thereof is integrally formed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a piping method and a pipe piece used therefor, and more particularly to a piping method for connecting ducts through an opening formed in an indoor partition and a pipe piece (sleeve) used therefor.

  Conventionally, a pipe piece (sleeve) 1 as shown in FIG. 7 is used as a piping method for the duct described above. The pipe piece (sleeve) 1 is formed into a cylindrical shape having a rectangular cross section as a whole, and the opening diameter thereof is made to coincide with the end face of the target duct pipe. That is, the conventional pipe piece (sleeve) 1 is used when the opening diameters of the pipe systems to be connected are the same.

  The pipe piece 1 is formed of a steel plate or the like, and has L-shaped cross-sections in which connecting holes 2. Equipped with angle flanges 3 and 3.

  However, since this conventional pipe piece 1 is equipped with L-shaped angle flanges 3 and 3 in which the connection holes 2, 2, etc. are arranged and drilled on the inner edge of the opening, the connection with the duct pipe is a bolt or a screw. Work is specified in using the connection fixing element.

  Therefore, when connecting the duct pipe to the pipe piece 1 set in the opening of the partition part such as the wall or the floor, the short pipe 4 having a short length is inevitably disposed at the connection part in order to perform bolting and the like. There is a need. A hand is inserted from the other opening of the short pipe 4, the flange 4 a of the short pipe 4 and the angle flange 3 of the pipe piece 1 are connected by a bolt 5 and fastened with a nut.

  This work is troublesome and requires special parts such as the short pipe 4, which takes time and requires work at a high place such as a vertical shaft or under a slab, which is always dangerous.

  In addition, in the post-installation in the case where an opening having a size larger than the duct pipe diameter is provided in the wall W or the like, it is necessary to refill the surplus portion 6 · 6, and various construction procedures are restricted to some extent. It will be also.

Furthermore, since a space for work is required on the wall surface, under the beam, etc., there are restrictions on design and construction.
JP 2002-165322 A Japanese Patent Application Laid-Open No. 2002-206762 JP 2003-83581 A

  The problem to be solved by the present invention is that only a fastening element such as a screw or a bolt can be used to connect the pipe piece (sleeve) and the duct pipe, which is inapplicable and sometimes a short pipe is indispensable. The work is time consuming and the efficiency is low, and the work at a high place may be required, which is dangerous. Furthermore, when the opening of the partition portion is large, a post-filling operation is required, and design and workability are limited.

  The present invention was made in order to solve the above-described problems, and is a piping method in which a duct is arranged through an opening formed in a partition part such as a wall or a floor. A pipe piece (penetration-free BOX, trade name, manufactured by Ei Kogyo Co., Ltd.) integrally provided with a flange portion bent at a substantially right angle toward the inside is disposed, and a duct configuration is provided for the flange portion of the pipe piece. It is characterized in that the end face flange of the part is integrally fixedly connected by using a fastening element or by caulking, and the pipe piece described above is generally rectangular, and the flange portion of the pipe piece described above is characterized in that The feature is that the size can be changed and adopted as appropriate.

  Further, the present invention is characterized in that both opening edges of the cylindrical body are bent at a substantially right angle inside and a flange portion is integrally formed, and the cross-sectional shape of the cylindrical body of the pipe piece is rectangular. In addition, it is characterized in that it is configured to be freely selected from a circular shape, an oval shape, etc., and the size of the flange portion described above can be appropriately changed and adopted.

  By adopting the above configuration, the method of fixing the connection between the duct pipe and the pipe piece is not limited to the use of screws, bolts, etc., so it is not necessary to use special short pipes and the work is efficient. In addition, it can avoid work at high altitude.

  In addition, even if the opening provided in the partition is larger than necessary for the duct, no backfilling work is required, and duct pipes with different pipe diameters can be connected via pipe pieces. Thus, the pipe piece itself can be reduced in weight.

  In order to achieve the object of the present invention, it has been realized by integrally providing flange portions facing inward at both opening edges of a pipe piece formed of metal.

  Next, preferred embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view showing correspondence between a pipe piece and a duct pipe according to the present invention, FIG. 2 is a side view showing the connection state, FIG. 3 is a side view showing another connection state, and FIG. FIG. 5 is a cross-sectional view, FIG. 5 is a view showing a connection state when the opening of the partition portion is large, and FIG. 6 is a view showing a connection state of the standing shaft.

  In these drawings, reference numeral 10 denotes a pipe piece (sleeve) embodying the present invention. The pipe piece 10 in this embodiment is made of steel and is formed into a rectangular shape, and flanges 11 and 11 bent toward the inside are integrally formed in a frame shape at both openings. .

  In addition, 12 and 12 in the figure indicate duct pipes, and the end faces opening edges of the duct pipes 12 and 12 are integrally provided with co-plate flanges 13 and 13, respectively. .. Are inserted as needed for inserting screws and bolts. Further, when it is difficult to use screws or bolts for construction, it is possible to perform caulking on the flange portion 11 of the pipe piece 10 described above.

  A specific example of connecting the duct pipes 12 and 12 using the pipe piece 10 will be described. In FIG. 2, reference numeral 15 denotes a wall, and this wall 15 is assumed to be a concrete or lightweight board. Reference numerals 16 and 16 denote wall boards that sandwich the light steel 17 as a core. Then, the pipe piece 10 is fitted into an opening formed between the wall 15 and the wall boards 16 and 16 to form a joint of the duct pipes 12 and 12.

  The pipe piece 10 has a bottom plate fixed to the wall 15. As the fixing means, an anchor 18 is used when the wall 15 is concrete, and nailing can be used when ALC is used. The light steel 17 is fixed with screws 19. Further, the duct pipes 12 and 12 are provided on the entire circumference or a part of the opening of the duct pipe 12 by using screw screws 20 and 20... For the flange portions 11 and 11 of the pipe piece 10. It is joined and connected by the folded iron plate 23.

  In FIG. 3, reference numeral 21 denotes a slab, and 22 denotes a beam protruding downward from the slab 21. In this case, the pipe piece 10 is fitted in the opening portion formed between the upper portion of the wall 15 and the lower surface of the beam 22 and the duct pipes 12 and 12 are connected. It is possible to execute even if there is no work space (gap).

  Further, FIG. 5 shows a construction state in the case where the opening is provided larger than the pipe diameter of the duct pipes 12 and 12a in a partition part such as a wall or a floor. In this case, the duct tube 12a has a smaller diameter than the opening, but the duct tube 12 may also have a smaller diameter. Such a case can be solved by widening the flange portions 11a and 11a corresponding to the small-diameter duct pipe 12a (increasing the length dimension) and bringing them into contact with and joining to the co-plate flange 13a. This eliminates the need for post-filling work as in the prior art, can change the existing concept that only pipes of the same diameter can be joined, and greatly increases the freedom of design and construction.

  In addition, in the case of the vertical shaft shown in FIG. 6, it is also possible to fix the iron plate 23 for folding the duct pipes 12 and 12 to the flange portion 11 of the pipe piece 10 in addition to fixing with screws or the like. Therefore, the bolting operation by inserting a hand into the duct tube 12 is not necessary, and the presence of the short tube 4 that has been conventionally required is also unnecessary. As a result, there is no work at a high place under the slab and the danger of work is avoided.

  The piping method according to the present invention and the pipe piece used therein are configured as described above. Therefore, in addition to duct piping shown as an example, it can be used for piping in many industrial fields, and the pipe piece has other shapes such as a circle and an ellipse in addition to the rectangular shape shown as an example. It can be applied as a thing, and the piping place is not limited to indoors, but can be applied and used in various purposes.

It is a perspective view which shows a response | compatibility with the pipe piece and duct pipe which implemented this invention. It is a side view which shows a connection state. It is a side view which shows another connection state. It is sectional drawing of a pipe piece. It is a figure which shows a connection state in case the opening of a partition part is large. It is a figure which shows the connection state of a standing shaft. It is a perspective view which shows the conventional pipe piece (sleeve). It is a figure which shows the conventional standing shaft construction. It is a figure which shows the conventional backfilling construction.

Explanation of symbols

1 Pipe piece (sleeve)
2 connecting hole 3 L-shaped angle flange 4 short pipe 4a flange 5 bolt 6 backfill 10 pipe piece (sleeve)
DESCRIPTION OF SYMBOLS 11 Flange part 12 Duct pipe 12a Small diameter duct pipe 13 Co-plate flange 14 Insertion hole 15 Wall 16 Bolt 17 Light steel 18 Anchor 19 Screw 20 Screw screw 21 Slab 22 Beam 23 Folding iron plate

Claims (6)

  A piping method in which a duct is provided through an opening formed in a partitioning part such as a wall or a floor, and the above-mentioned opening is integrally provided with a flange part bent at a substantially right angle toward the inside. A pipe construction method characterized in that a pipe piece is disposed and an end face flange of a duct component part is fixedly connected integrally to the flange portion of the pipe piece by using a fastening element or by caulking.   The piping method according to claim 1, wherein the pipe piece has a rectangular shape as a whole.   The piping method according to claim 1 or 2, wherein the size of the flange portion of the pipe piece described above can be appropriately changed and adopted.   A pipe piece characterized in that both opening edges of a cylindrical main body are bent at a substantially right angle inside and a flange portion is integrally formed.   The pipe piece according to claim 4, wherein a cross-sectional shape of the cylindrical main body of the pipe piece is configured to be freely selected from a circular shape, an oval shape, and the like in addition to a rectangular shape. The pipe piece according to claim 4 or 5, wherein the size of the flange portion can be appropriately changed and adopted.

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