JP2006077891A - Pipe unit and multistory building piping method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pipe for achieving a shorter construction period by rationalizing piping work of a stand pipe for a multistory building and reducing piping labor for connecting main pipes in a construction site, and to provide a piping method for the stand pipe using the same. <P>SOLUTION: This pipe unit 1 comprises the synthetic resin flexible main pipe 11 and a joint part 13 having a branch 14 formed downward in a flow direction so as to be connected to a branch pipe. The main pipe 11 has a length equivalent to a plurality of stories of the building or one system, and the joint part 13 is formed with a halved branch saddle 13a along the outer peripheral face of the main pipe 11. The branch saddle 13a is fixed to the main pipe 11 to form the stand pipe having a length equivalent to the plurality of stories of the building or one system. At least the main pipe 11 can be transported in a coiled condition. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a piping unit used for a vertical pipe for water supply and hot water supply in a multi-layered building, and a piping construction method thereof.

  When installing vertical pipes such as water supply main pipes indoors in multi-layer buildings such as medium- and high-rise apartment buildings and commercial buildings, straight pipes equivalent to one layer or two to three layers Generally, there is a method in which the pipes are manually connected through a pipe joint or the like while being adjusted to a predetermined length, and fixed to a building frame using a fixing bracket. However, a large number of members such as straight pipes and pipe joints and installation tools have to be transported to the construction site on each floor, and the work is time consuming, time consuming and costly as the building becomes taller.

  Therefore, for example, Patent Document 1 discloses a piping method for a piping unit in which a flexible main pipe cut to a length corresponding to one layer of a building is connected to a length corresponding to a plurality of floors via a branch joint. It is disclosed. In this piping method, branch pipes and branch pipes are pre-connected to the branch joints, and main pipes and branch joints are connected at the factory to produce pipes for multiple floors of the building. And take it to the construction site together with the reel. And it is set as the structure which lifts upwards through a floor penetration sleeve, and performs piping work, unwinding this piping unit from a reel.

Further, in Patent Document 2, in order to eliminate the need for piping work that cuts a straight pipe or connects a straight pipe and a pipe joint, the main pipe is made of stainless steel provided with bellows at predetermined intervals. There has been proposed a piping construction method in which a flexible pipe is formed and a piping path is formed between a faucet such as a sink or a washroom and a water supply branch pipe using the flexible pipe. And the main pipe of a flexible pipe is arrange | positioned in the linear location of a piping path, and a bellows part is refracted and arrange | positioned in the bending location of a piping path. Thereby, between the faucet of a water supply equipment and a water supply branch pipe is connected by one pipe body which can be matched with the shape of a piping location, and work effort is reduced.
Japanese Patent No. 3225017 Japanese Patent Laid-Open No. 11-182747

  However, according to the piping method disclosed in Patent Document 1, the main pipe is cut to a length corresponding to the height of one layer of the building, but the height of this one layer differs for each building. For this reason, there is a risk of mistakes occurring in the factory during manufacturing. In addition, the formed piping unit is wound around a reel, so that stress concentrates on the connection part between the main pipe and the branch joint, which may cause buckling of the pipe. Further, the branch pipe connected to the indoor pipe Has already been installed, it is difficult to wind the reel, and the reel diameter has to be increased.

  Moreover, according to the piping construction method of Patent Document 2, the number of work steps when forming the piping between the water supply branch pipes and the various water supply facilities is reduced, but for example, a water supply main pipe disposed over multiple layers of the building, etc. Since the vertical pipe is piped in a straight line in the vertical direction, it is not suitable for reducing the labor of such pipe work.

  Therefore, the present invention has been made in view of the above-mentioned problems, streamlining the piping work of the multi-layer building vertical pipe, reducing the labor of the piping work at the construction site, and shortening the construction period. It is an object of the present invention to provide a piping unit with high workability and high reliability, and a pipe construction method for a vertical pipe using this pipe.

  In order to solve the above problems, the present invention is a long piping unit that constitutes a vertical pipe of a multi-layered building and to which a branch pipe can be connected, and is a flexible synthetic resin main pipe, A branch pipe connected to the branch pipe is provided with a joint portion formed downward in the flow direction to form a vertical pipe having a length corresponding to a plurality of layers or one system of a building, and at least the main pipe is It can be transported in a wound state. According to this invention, it can be carried into the construction site in a wound state, and the piping work can be performed quickly with the number of construction steps reduced.

  Further, in the piping unit according to the present invention, the main pipe is formed with a length corresponding to a plurality of layers or one system of the building, and a plurality of perforations are provided at predetermined intervals in the pipe axis direction. The branch saddle has a branch pipe extending in the coaxial direction in contact with the outer peripheral face of the branch saddle, and the branch pipe is connected to the perforation. The branch saddle is fixed to the main pipe.

  Accordingly, the branch saddle constituting the joint portion accommodates the vertical pipe without interfering with other pipes because the branch pipe is in contact with the outer peripheral surface of the branch saddle and extends in the coaxial direction. Space saving can be achieved in a vertical hole such as a through sleeve. Further, since the joint portion can be formed only by fixing the branch saddle to the side surface of the main pipe, workability is also improved. In addition, the main pipe is composed of a long body of multiple layers or a length of one line of the building and has flexibility, so that the piping work at the site can be simplified and wound on a reel or the like. The tube can be easily transported in a bent state, and there is no risk of tube buckling even in the wound state.

  Further, in the piping unit according to the present invention, the main pipe is formed with a predetermined length, and the joint portion is configured by a substantially cylindrical joint pipe whose diameter is increased from the upper side to the lower side in the flow direction, and a plurality of pipes having different pipe diameters are provided. The main pipes may be connected to each other by the joint pipe so that the pipe diameter increases toward the downstream side of the vertical pipe.

  According to the present invention, it is easy to form a vertical pipe having a length corresponding to a plurality of layers or one system of a building with a pipe diameter of an optimal size on each floor, and ensuring an appropriate amount of water and water pressure. It can be easily realized.

  In order to solve the above-mentioned problems, the piping construction method for multi-layer buildings according to the present invention is flexible and has a length that can correspond to a vertical pipe for a plurality of layers or one system of a building. Is taken up into the construction site in a wound state, and the leading end of the main pipe is lifted from the lower floor to the upper floor by a lifting device and sequentially disposed on each floor, and on each floor, the branch pipe on the outer peripheral surface of the main pipe A pierced branch saddle having a branch pipe formed in a connecting position and having a branch pipe coaxially extending downward in the flow direction in contact with the outer peripheral surface is connected to the main pipe perforation and the branch pipe. The indoor pipe is constructed by connecting the branch pipe to the branch pipe of the branch saddle.

According to the present invention, the main pipe can be carried into the construction site in a wound state, and the branch saddle can be attached to an arbitrary place at the construction site. In this case, the main tube can be easily wound using flexibility, the winding diameter can be reduced, and there is no fear of buckling of the tube accompanying this. Therefore, it is possible to efficiently arrange the vertical pipes in the multi-layered building in a short period of time, and to form a high-precision vertical pipe without depending on the skill level of the operator. Further, since the main pipe is a single pipe body and the branch saddle is fixed and connected to the branch pipe, there are very few junctions of the vertical pipe, and the vertical pipe is used as a pressure pipe for water supply or the like. In this case, the risk of water leakage is reduced.

  Also, the pipe construction method for a multi-layer building according to the present invention is flexible and includes a plurality of main pipes having different pipe diameters formed with a predetermined length, with branch pipes in contact with the outer peripheral surface and downstream direction of the pipe axis. Are connected to each other using a substantially cylindrical joint pipe whose inner diameter is expanded in the downstream direction, and forming a vertical pipe having a length corresponding to a plurality of layers or one system of a building; A step of bringing the vertical pipe into the construction site in a wound state, and pulling up the tip end portion of the main pipe from the lower floor to the upper floor by a lifting device and sequentially disposing it on each floor. An indoor pipe is constructed by connecting a branch pipe to the pipe.

  According to the present invention, the labor for connecting main pipes at a construction site is eliminated, and the piping work can be performed efficiently and quickly with the number of construction steps reduced. In addition, since the pipe diameter of the vertical pipe can be set to an optimum size for each floor, it is possible to easily realize an appropriate amount of water and water pressure.

  According to the piping unit and the piping construction method of a multilayer building according to the present invention, since the main pipe has flexibility, the winding state is formed when the main pipe is formed with a length corresponding to a plurality of layers or one system of the building. Can be easily transported, and the winding diameter can be reduced, and there is no risk of buckling of the tube. Also, at the construction site, it is possible to arrange the vertical pipes on each floor of the multi-layered building by simply lifting the main pipes from the lower floor to the upper floor with the lifting device, so it takes connection work between the main pipes Work efficiency is improved by reducing labor, and even a small number of workers can proceed with quick piping work.

  When the main pipe is formed with a predetermined length and a plurality of main pipes having different pipe diameters are connected to each other by the joint pipe, the pipe diameter of the vertical pipe can be set to an optimum size for each floor. Therefore, it is possible to easily realize an appropriate amount of water and water pressure.

  Therefore, according to the present invention, since the joint portion connected to the branch pipe can be constructed regardless of the skill level of the operator, the quality of the piping is stabilized, and the possibility of occurrence of problems such as water leakage can be reduced. In addition, if the branch pipe is in contact with the outer peripheral surface of the branch saddle and extends in the coaxial direction, it does not interfere with other pipes, so space is saved in a vertical hole such as a through sleeve that accommodates the vertical pipe. Can be achieved.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  The piping unit according to the present invention forms, for example, a vertical pipe such as a water supply main pipe that is stored in a pipe shaft penetrating through each floor in a multi-layered building such as an apartment house or a commercial building such as a mid- and high-rise apartment. To do. Hereinafter, the present invention will be described with reference to examples, but the present invention is not limited to these examples.

  Example 1 of a piping unit and a piping construction method for a multilayer building according to the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment of a piping unit according to the present invention, FIG. 1 is a perspective view of the piping unit in a wound state, FIG. 2 is a perspective view of a joint portion of the piping unit as viewed from the side, and FIG. These are the top views which looked at the joint part of the piping unit of this invention from the inner peripheral side.

The piping unit 1 includes a long main pipe 11 made of a synthetic resin material having flexibility such as polyethylene and having a length corresponding to the length of a vertical pipe for one system arranged in the multilayer building 3. The joint portion 13 is configured to be attached to the main pipe 11 at a predetermined interval.

  In the illustrated embodiment, the joint portion 13 is configured by a half-splitting branch saddle 13 a along the outer peripheral surface of the main pipe 11. The branch saddle 13a is provided with a branch pipe 14 to which a branch pipe (not shown) is connected. The branch pipe 14 is formed with a pipe diameter of about 20 mm, and extends in parallel with the flow path axis when the saddle is attached so as to contact the outer peripheral surface of the branch saddle 13a. A threaded portion 141 is formed at the tip of the branch 14 and is used for connection to the branch pipe. In addition, a hexagonal tightening portion 142 is provided at the base of the screw portion 141 to facilitate tightening of the screw portion 141. The tightening portion 142 does not necessarily have a hexagonal shape, and any tightening portion 142 may be used as long as it has at least two plane portions at positions symmetrical with respect to the central axis of the screw portion 141.

  The branch saddle 13a is made of synthetic resin or metal and includes an electrofusion electrode 151. Further, as shown in FIG. 3, a fusion surface 153 in which a number of electric wires 152 are disposed is formed on the inner peripheral side of the branch saddle 13a. As a result, the branch saddle 13 a can be fused to the outer peripheral surface of the main pipe 11.

  On the other hand, the main pipe 11 is provided with perforations 12 equal to the inner diameter of the branch pipe 14 in accordance with the height direction interval of the branch pipes extending on each floor. A branch pipe 14 of a branch saddle 13a is attached to the perforation 12 so as to be connected downward in the flow direction.

  FIG. 4 is an explanatory view showing a piping construction method for a multilayer building. In FIG. 4, the code | symbol 3 is multi-layered buildings, such as a small and medium-sized apartment, for example, and has shown the construction process in an order from the left side in the figure.

  In the piping unit 1, it is preferable that the main pipe 11 is formed in advance in a length corresponding to one system at the factory, and is carried into the construction site in a state of being wound using the flexibility of the main pipe 11. And as shown in FIG. 4, the main pipe 11 of the wound state is conveyed to the 1st floor piping place, and the raising device 2, such as a winch, is installed on the 10th floor of the top floor. Next, the tip of the wire 21 of the pulling device 2 is pulled down to the lowest floor, and the tip of the main pipe 11 is connected.

  Subsequently, the pulling device 2 is operated to wind up the wire 21, and the main pipe 11 is pulled up from the lower floor to the upper floor and is sequentially lifted up to the 10th floor of the uppermost floor. Next, an appropriate fixing / rest metal fitting 22 is attached to the pulled up main pipe 11 and fixed to the building 3.

  Thereafter, the branch saddle 13a is attached to the outer peripheral surface of the main pipe 11 on each floor. First, the main pipe 11 is provided with perforations 12 equal to the inner diameter of the branch pipe 14 in accordance with the installation position of the branch pipe. A branch saddle 13 a is attached to the outer peripheral surface of the main pipe 11 so that the perforation 12 and the opening 143 of the branch pipe 14 are connected. Subsequently, a fusion machine is connected to the electrode 151 of the branch saddle 13a, the electric wire 152 is energized, and the main pipe 11 and the fusion surface 153 of the branch saddle 13a are fused and fixed. Here, the branch pipes 14 provided in the pipe unit 1 are formed downward in the flow direction in contact with the outer peripheral surface of the branch saddle 13a, so there is no possibility of interfering with other pipes. Space can be saved.

  Next, the branch pipe 31 is connected and disposed in various water facilities, and the water supply main pipe 32 is connected to the pipe unit 1 to form the vertical pipe 10 to complete the piping work.

  With this arrangement method, the piping unit 1 is arranged in a straight line from the uppermost floor to the lowermost floor of the multilayer building 3 to form a vertical pipe 10 for one system, and a branch pipe 31 is connected to the vertical pipe 10. It will be extended to supply water to facilities such as toilets and kitchens. Therefore, the arrangement | positioning operation | work of the vertical pipe 10 in the multilayer building 3 can be performed efficiently in a short period of time, and the high-precision vertical pipe 10 can be formed without depending on an operator's skill level.

  Next, a second embodiment of the piping unit according to the present invention will be described. FIG. 5 is a perspective view showing the joint portion 13 in the piping unit 1 of the second embodiment. The piping unit 1 of the second embodiment is different from the first embodiment in the form of the joint portion 13, and is characterized in that the main pipe 11 is connected by the joint portion 13 to form a vertical pipe 10. Therefore, in the following description, the configuration of the joint portion 13 will be described in detail.

  As illustrated, the joint portion 13 includes a tapered portion 133 whose diameter increases from the upstream connection port 131 connected to the main pipe 11 toward the downstream connection port 132, and is formed in a concentric cylindrical shape having different diameters. It consists of a joint pipe 13b. A branch pipe 14 is provided on the outer peripheral surface of the joint pipe 13b in the same manner as in the first embodiment.

  In the illustrated embodiment, the piping unit 1 includes a flexible synthetic resin main pipe 11 divided into a plurality of parts, and has a length corresponding to one layer or two layers of the multilayer building 3. is doing. These main pipes 11 have a plurality of types of inner diameters corresponding to the pipe diameters of the vertical pipes 10 required on each floor of the building 3. For example, pipes having a pipe diameter of 25 to 30 mm are used in the upper layer part, and lower layer parts 40 to 50 mm The tube diameter is used. These main pipes 11 are sequentially connected by a joint pipe 13b to form a long vertical pipe 10.

  The piping unit 1 having such a configuration is suitable when the pipe diameter of the vertical pipe 10 is different in design between the upper floor and the lower floor of the building 3. With this piping unit 1, an appropriate amount of water and water pressure can be secured, and efficient piping work can be performed. Moreover, the long vertical pipe 10 formed by connecting the main pipe 11 with the joint pipe 13b can be carried into the construction site in a wound state, similarly to the first embodiment, It is also possible to perform construction in a short period of time by an arrangement method in which the pipes are pulled up from the piping place and sequentially arranged on each floor.

  The piping unit and the piping method of the vertical pipe according to the present invention are the installation work of equipment piping such as water / hot water pipes and cold / hot water pipes for cooling and heating in multi-layer buildings such as middle- and high-rise apartment buildings and commercial buildings. Can be suitably used to streamline

It is a perspective view which shows Example 1 of the piping unit which concerns on this invention. It is the perspective view which looked at the joint part of the piping unit of FIG. 1 from the side. It is the top view which looked at the joint part of the piping unit of FIG. 1 from the inner peripheral side. It is explanatory drawing which shows the piping construction method of the multilayer building which concerns on this invention. It is a perspective view which shows Example 2 of the piping unit which concerns on this invention.

Explanation of symbols

Piping unit 1
Vertical pipe 10
Main 11
Perforation 12
Joint part 13
Branch saddle 13a
Fitting pipe 13b
Upstream connection 131
Downstream connection port 132
Tapered part 133
Branch pipe 14
Lifting device 2
Wire 21
Multistory building 3

Claims (5)

  A long piping unit that constitutes a vertical pipe of a multi-layered building and to which a branch pipe can be connected, and a flexible synthetic resin main pipe and a branch pipe connected to the branch pipe are below the flow direction. A vertical pipe having a length corresponding to a plurality of layers or a system of a building, and at least the main pipe can be conveyed in a wound state. Piping unit.   The main pipe is formed with a length corresponding to a plurality of layers or one system of the building, a plurality of perforations are provided at predetermined intervals in the pipe axis direction, and the joint portion is a half-branched branch along the outer peripheral surface of the main pipe The branch saddle is formed of a saddle, and a branch pipe extends in the coaxial direction in contact with the outer peripheral surface of the branch saddle, and the branch saddle is fixed to the main pipe so that the branch pipe is connected to the perforation. The piping unit according to claim 1.   The main pipe is formed with a predetermined length, and the joint portion is constituted by a substantially cylindrical joint pipe whose diameter is expanded from the upper side to the lower side in the flow direction, and a plurality of main pipes having different pipe diameters are connected to each other by the joint pipe. The pipe unit according to claim 1, wherein the pipe diameter is formed so that the pipe diameter increases toward the downstream side of the vertical pipe. A main pipe that is flexible and has a length equivalent to the vertical pipe for multiple layers of a building or a single system is carried into the construction site in a wound state, and the tip of this main pipe is pulled down by a lifting device. A process of raising from the floor to the upper floor and arranging them on each floor sequentially;
On each floor, a half-branch branch saddle having a branch pipe formed in a branch pipe connection position on the outer peripheral surface of the main pipe and extending coaxially toward the lower side in the flow direction in contact with the outer peripheral surface, A step of fixing the main pipe so as to connect the perforation of the main pipe and the branch pipe,
A pipe construction method for a multi-layered building, wherein an indoor pipe is constructed by connecting a branch pipe to a branch pipe of the branch saddle. A plurality of main pipes having different pipe diameters that are flexible and have a predetermined length are provided in the downstream direction of the pipe axis with the branch pipes in contact with the outer peripheral surface, and the inner diameter is increased in the downstream direction. Connecting to each other using a cylindrical joint pipe, forming a vertical pipe having a length corresponding to a plurality of layers or a system of a building;
A step of bringing the vertical pipe into the construction site in a wound state, and sequentially disposing the tip of the main pipe from the lower floor to the upper floor by a lifting device,
A pipe construction method for a multilayer building, wherein an indoor pipe is constructed by connecting a branch pipe to a branch pipe of the joint pipe.

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