JP3672055B2 - Construction method of piping member assemblies - Google Patents

Description

[0001]
[Industrial fields]
The present invention relates to a method for constructing a piping member assembly . More specifically, the present invention relates to a water supply / hot water supply piping mainly used in prefabricated houses such as ordinary houses, apartment houses, or commercial buildings, and a construction method of a member assembly for piping that simplifies construction on site.
[0002]
[Prior art]
Conventionally, prefabricated construction methods have been widely used in general houses, apartment houses, hotels and commercial buildings for the purpose of rationalizing construction work. Each unit in prefabricated houses, for example, toilet, bath and toilet are one unit, Kitchen and Laundry Area, as referred to, such as one unit, manufactured at the factory for each unit, further floors, walls, ceiling, etc. also at the factory A part of these parts is assembled on the belt conveyor of the factory, the rest is transported to the construction site, and all unit parts are transported to the construction site, where they are assembled for the purpose of assembly. To do.
[0003]
In such a prefabricated house, the equipment in the water unit is almost the same, so the shape and size of the pipes are almost the same. However, since these piping are performed at the time of assembling each unit, it is required to complete in a very short time. In addition, in the case of apartment houses, hotels, etc., because the internal structure is standardized for each house and room, the plumbing around the water is unified. However, plumbing work is concentrated at one time, and it is necessary to construct the subsequent processes within an extremely short period of time. In particular, at construction sites where many facilities around the water are installed in a compact space in a compact space, such as apartment buildings, there is a strong demand for process shortening due to the balance with other industries. It was also necessary to shorten the inspection time.
[0004]
In order to shorten the time for such pipe construction, a header method and a Saya pipe header method have been proposed and put into practical use. “Header construction method” means that a flexible liquid feed pipe is connected to each of a plurality of branch ports provided in a header connected to a main water supply pipe, and this liquid feed pipe is connected to a building. This is a construction method that leads to each faucet device (destination) at a desired location by laying it on the slab surface. Although it is possible to shorten the pipe construction time according to this construction method, further shortening is required, and for pipes in which a flexible liquid feed pipe having a predetermined length is connected in advance to a plurality of branch ports of the header. An assembly of members has been proposed (see JP-A-7-158128).
[0005]
In addition, the “saya pipe header construction method” means that a pipe member (saya pipe) is preliminarily placed on the slab surface when laying a liquid feed pipe on the floor wall of the building from the header connected to the water supply pipe to a desired location. Then, a flexible liquid feeding pipe is inserted into the tubular member (sheath pipe) and then laid. According to this method, the flexible liquid supply pipe is not stepped on by the worker or directly touches the slab surface, so that it is not damaged and does not require skill in the piping work. Although there is an advantage that it can be easily constructed even if it is not, there are problems of carrying in and carrying in the case of a long length, problems of securing a work space at the construction site, and the like. In order to solve such a problem, a flexible liquid feeding pipe having a predetermined length is inserted into a sheath pipe having a predetermined length, and one end thereof is connected in advance to a plurality of branch ports of the header. There has been proposed a method of constructing a pipe header prefabricated unit in which a pipe member is wound in a coil shape (see JP-A-7-197495).
[0006]
Among these proposed improvements, in the case of the assembly described in Japanese Patent Application Laid-Open No. 7-158128, one end of the liquid feeding pipe is fixed in advance to a plurality of branch ports of the header. Although the length is adjusted to a predetermined length in advance, the liquid feeding pipe is fixed to the slab surface, wall surface, pier, etc. with a fixture, so that the extra length of the liquid feeding pipe is absorbed. It is necessary to finely adjust (cut) the length at the construction site. When the liquid feeding pipe that has been adjusted to a predetermined length in advance is short, the whole must be replaced with a long one, and is usually slightly longer than the theoretical value to avoid this danger. Fine adjustment of the length of the liquid supply pipe is carried out in a building where each faucet device is dispersed, and it is necessary to perform it individually at the place where the joints of these dispersed faucet devices are located. Has the disadvantage of being extremely annoying.
[0007]
When the construction method described in JP-A-7-197495 is used, as in the case described in JP-A-7-158128, one end of the liquid feeding pipe is fixed in advance to a plurality of branch ports of the header. Although the length of the liquid feeding pipe is adjusted to a predetermined length in advance, it is necessary to finely adjust (cut) the extra length at the construction site. In the Saya pipe header prefab unit described in this publication, since the liquid feeding pipe is inserted through the Saya pipe, it is extremely difficult to absorb the extra length of the liquid feeding pipe in other parts. The length has to be finely adjusted and has the same drawbacks as above. In addition, the Saya tube header prefab unit has a disadvantage that a plurality of Saya tubes through which the liquid feeding tube is inserted is fixed to the header in advance, so that the weight is heavy as a whole and storage, transportation and handling are inconvenient.
[0008]
[Problems to be solved by the invention]
In view of the present situation, the present inventors relate to water supply / hot water supply pipes mainly used for prefabricated buildings such as ordinary houses, high-rise houses, hotels, and commercial buildings, and piping members for simplifying construction on site. As a result of intensive studies aimed at providing an assembly and a construction method using the piping member, the present invention was completed. That is, the present invention aims at the following.
1. To provide a method for constructing a pipe member assembly that can greatly shorten the pipe construction time.
2. To provide a construction method for piping member assemblies that is not heavy overall and is convenient for storage, transportation, and handling.
3. To provide a method for constructing a pipe member assembly that generates less liquid pipe loss (waste).
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a plurality of sets of piping member assemblies in which a joint is connected in advance to one end of a flexible liquid feeding pipe cut to a predetermined length. the joint is fixed to the faucet fixture location in construction site, then the pipe along the liquid feed pipe to the piping route, finally, water supply and hot water supply to which the other end of the liquid feed pipe each having a plurality of branch ports Provided is a pipe member assembly construction method characterized by connecting to each one branch port of a header.
[00 10 ]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail.
In the present invention, the flexible liquid feeding pipe includes a cross-linked polyethylene pipe, a pipe that can be connected mechanically or by fusion, such as a cross-linked polybutene pipe, a stainless steel corrugated tube (SSCT), and a copper pipe. A stainless steel coiled tube (SCT) made thinner than a metal reinforced polyethylene pipe coated with medium density polyethylene or cross-linked polyethylene on the inner and outer surfaces of an aluminum pipe, or a stainless steel pipe for general piping defined in JIS G3448, Etc. Among these, a cross-linked polyethylene pipe and a cross-linked polybutene pipe are preferable.
[0011]
In the member assembly for piping used in the construction method according to the present invention, a joint needs to be connected in advance to one end of the liquid feeding pipe. Here, “in advance” means that the pipe member assembly is not connected at the construction site. Generally, it is connected in a factory that cuts the liquid feeding pipe into a predetermined length, a work place other than the construction site, and the like. “Predetermined length” refers to the distance from the joint of each faucet device to each one of the water / hot water headers having a plurality of branch ports, which is a number from the length (theoretical value) on the drawing. A length of millimeter or several centimeters. If the length of the liquid feeding pipe is short, it is difficult to add to this, so it is necessary to replace the whole with a long one, and the liquid feeding pipe loses (waste). By making the length slightly longer than the length on the drawing, there is no shortage of length, it becomes unnecessary to replace the whole with a long one, and the occurrence of loss of the liquid feeding pipe can be reduced.
[0012]
The joint connected to one end of the liquid supply pipe is arranged between the end of the liquid supply pipe and the faucet device to connect both, and has a structure that also serves as a faucet adapter, faucet elbow, etc. There may be. Since the installation location of the faucet device differs depending on the application (destination), the distance from each branch port of the header having a plurality of branch ports to each faucet device varies depending on the application. Applications of the faucet include kitchen water / hot water tap, bath water / hot water tap, toilet vanity water / hot water tap, toilet hydrant, etc.
[0013]
The piping member assembly used in the construction method according to the present invention may be a bare pipe as its liquid feeding pipe. However, in the case of a bare pipe, if a liquid feeding pipe is stepped on by an operator during construction or a tool falls on the pipe, it may be damaged and cause water leakage. In order to prevent such inconvenience, it is preferable to insert the liquid feeding pipe into the sheath pipe. The length of the Saya tube is adjusted according to the length of the liquid feeding tube inserted through it. In general, the sheath pipe is slightly shorter than the length of the liquid feeding pipe. The operation of inserting the liquid feeding pipe into the sheath pipe is performed “in advance”. Since the work of inserting the liquid feeding pipe into the sheath pipe is performed in advance, there is no need for a work space at the construction site.
[00 14 ]
As the material constituting the sheath tube, a flexible synthetic resin tube, in particular, a tube capable of coil winding such as a corrugated tube and a bellows tube is used. Examples of the material for the corrugated tube and the bellows tube include thermoplastic resins such as polyvinyl chloride, polyethylene, polypropylene, polyvinylidene chloride, polycarbonate, and polyamides.
[00 15 ]
A buffer layer is preferably provided between the sheath tube and the liquid feeding tube. This buffer layer is useful for countermeasures to mute the impact sound caused by the water hammer phenomenon. The buffer layer can be formed of a foam sheet material such as foamed polyethylene, wound around the outside of the liquid feeding pipe, and inserted into the sheath pipe.
[0016]
The piping member assembly used in the construction method according to the present invention is wound at the factory or at a workplace other than the construction site, etc., wound in a coil shape according to the use of the multiple sets of assemblies, It is preferable that a plurality of sets of assemblies wound in a coil shape are stored in a corrugated cardboard box, and the destination of each assembly is specified in the box. Since only one set of assemblies is stored in the cardboard box, the storage space can be reduced, and the weight of the cardboard box does not increase so much, which is very convenient for transportation and handling. It is convenient for transportation and piping construction to specify the destination on the cardboard box.
[0017]
To construct with the construction method according to the present invention, first, at the stage where the types and number of assemblies required for one construction unit (one house, one room, etc.) are individually stored in a cardboard box. Check and prepare. Then, carrying a plurality of cardboard boxes in a construction site, taken out to check the assembly that matches the use of faucet fixtures in the display of cardboard boxes, re-check the destination indication tag of the assembly, each Fix the joint side of the assembly to the installation location of the faucet device, pipe the assembly wound in a coil shape along the predetermined piping route, and fix it in place by corner vents, saddle pipe saddles, etc. fixed, leads the other end of each liquid feed pipe to each one of the branch port of the water supply and hot water supply header, each having a plurality of branch ports.
[0018]
The pipes are piped in the same procedure as above for each use of the faucet device, and a plurality of liquid feeding pipes are led to one branch port of each of the water supply and hot water supply headers having a plurality of branch ports . Fine adjustment of the length of a plurality of liquid feeding pipes can be performed at a single location where a water / hot water header is installed, and can be connected to a plurality of branch ports of the water / hot water header . When using a conventional header prefab unit, Saya pipe header prefab unit, etc., one end of the liquid feed pipe is fixed on the header side, but the other end must be fixed for each faucet, Although it was necessary for the worker to move between the installation locations of a plurality of faucet appliances, in the case of the construction method using the pipe member assembly according to the present invention, the worker can work at one place, so There is no need.
[0019]
Construction by the construction method according to the present invention can be applied when constructing a water-based unit of a prefabricated building such as a general house, a housing complex such as a condominium, a high-rise commercial building, a high-rise business hotel or the like. Examples of the area around the water include a kitchen, a washroom, a bath, a toilet, and a washing machine place, but are not limited to those illustrated.
[0020]
【Example】
Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of an example of a pipe member assembly used when performing construction according to the construction method according to the present invention , and FIG. It is a perspective view which shows an example which constructed the unit.
[00 21 ]
In FIG. 1, 10 is a liquid feed pipe, 11 is a sheath pipe, 12 is a joint connected to one end of the liquid feed pipe, 13 is a display board, 14 is the other end of the liquid feed pipe, and 15 is a member assembly for piping. Show. In FIG. 2, a hot water supply side header 22 is connected to a water supply pipe 21 through which hot water from a hot water heater 20 is guided, and a water supply side header 24 is connected to a water supply pipe 23 through which tap water is guided. A plurality of hot water pipes 25 connected to the hot water supply side header 22 and a plurality of water pipes 26 connected to the water supply side header 24 are led from respective faucet devices provided at a plurality of locations in the dwelling unit. . In the illustrated example, it is fixed to the faucet device 27 by a joint 31. The faucet device 27 is a faucet device such as a bathtub, a shower, a sink, a washing machine, a wash basin, and a toilet. An example in which the other end of the water pipe 26 is connected to the headers 22 and 24 via a joint 32 is shown.
[00 22 ]
In the example illustrated in FIG. 2, each of the hot water pipe 25 and the water pipe 26 is configured to be inserted through the sheath pipe 11, but may be a bare pipe. First, the joint 12 attached to one end of the liquid supply pipe 10 is fixed to each faucet installation location via a connector, and the assembly wound in a coil shape is unwound along a predetermined piping route. Then, the pipe is piped and fixed at a fixed position by a corner vent, a saddle pipe saddle or the like, and the other ends of the hot water pipe 25 and the water pipe 26 are led to the branch ports of the headers 22 and 24. The other end of the liquid feed pipe led to the header branch port is adjusted to the length of the hot water pipe 25 and water pipe 26 led to the vicinity of the headers 22 and 24 by adjusting the length at the header branch port. 31 is connected to the branch port, and the construction is completed.
[0023]
【The invention's effect】
The present invention has the following particularly advantageous effects, and its industrial utility value is extremely great.
1. When installing by the construction method according to the invention, fix the joint of the liquid feeding pipe to the faucet installation location, place and fix the liquid feeding pipe, and connect the other end of the liquid feeding pipe to the branch port of the water supply / hot water header Since it only has to be connected, piping construction time can be greatly shortened.
2. The piping member assembly used in the construction method according to the present invention is individually wound in a coil shape depending on the use of the faucet device, and piping used for a plurality of uses like a conventional header prefab unit. Since they are not wound at the same time, the weight of the assembly is light and it is very convenient for storage, transportation and handling.
3. According to the construction method according to the present invention, since the assembly wound in the coil shape is piped while being unwound along a predetermined pipe route, the construction work can be performed efficiently.
4). According to the construction method of the present invention, the fine adjustment of the length of the liquid supply pipe can be performed in one place where the water supply / hot water supply header is installed, and the loss of the liquid supply pipe (waste) Occurrence can be reduced.
5. According to the construction method according to the present invention, since the connection work between the liquid feeding pipe and the header can be performed in one place, and there is no movement of the worker, even if the work process with other industry overlaps, There is no obstacle to work.
[Brief description of the drawings]
FIG. 1 is a perspective view of an example of a piping member assembly used when performing construction by the construction method according to the present invention.
FIG. 2 is a perspective view showing an example of constructing a general house water unit by the construction method according to the present invention.

Claims (3)

Plural pipe member assemblies with joints connected in advance to one end of a flexible liquid feed pipe cut to a predetermined length. fixed to, and then the liquid feed tube and pipe along the pipe route, that finally, connected to each one of the branch port of the water supply and hot water supply header having the other end a plurality of branch ports of the liquid feed pipe The construction method of the member assembly for piping characterized by this.   The construction method for a pipe member assembly according to claim 1, wherein the liquid feeding pipe having flexibility is inserted into a hollow tubular sheath pipe.   The construction method for a pipe member assembly according to claim 1 or 2, wherein the flexible liquid feed pipe is a crosslinked polyethylene pipe or a crosslinked polybutene pipe.

Images