JPH05179678A - Piping laying method and piping unit - Google Patents

Abstract

PURPOSE:To reduce quantity of work at site by laying pipings for water supply and drain facilities, etc., in a structure simply and speedily. CONSTITUTION:A branch pipe 11 having flexibility is assembled and connected to be branched from a main pipe 10 through a branch part 21 for composing a piping unit 2, and the piping unit 2 is transported as the branch pipe 11 is flexed. At a construction site 1, a main pipe root part 101 is connected to a main pipe 6, and each forward end part 11a is connected to each faucet 12 to complete piping laying work. The branch part 21 is worked in a factory, so there is no possibility of connection failure, thereby a high-reliability piping structure can be provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe laying method and a pipe unit which can easily lay a pipe in a building or the like.

[0002]

2. Description of the Related Art Conventionally, when piping a water supply / drainage facility for a building, etc., a straight pipe material that has been factory-machined to a predetermined length based on JIS standards etc. is used as a piping construction drawing at the construction site. According to the construction, the pipes are cut into a predetermined length, and the pipes cut into the predetermined length are combined by appropriately joining them using screws, flanges, welding, mechanical joints, etc. The pipe was laid inside.

[0003]

Therefore, the pipe laying work requires a large amount of work on site, and a large amount of time is spent in the construction cycle time of the building. Therefore, there is a case where the pipe material that has been cut beforehand is transported to a place outside the site, and only the joining and assembling work is performed on the site, but in this case, since the number of pipe materials configured is large, the work becomes complicated and If the cut pipe material is arranged at the wrong position, it takes time to correct the arrangement. Also,
Due to the large number of connection points in the field, the occurrence rate of piping defects due to leaks etc. was high, and the reliability of the piping structure could not be obtained unless the construction inspection was time-consuming.

In view of the above circumstances, the present invention reduces the amount of work on site when installing pipes in water supply and drainage facilities of buildings, etc., so that a reliable and highly reliable pipe structure can be laid. The present invention provides a pipe laying method and a pipe unit.

[0005]

That is, the present invention has main pipes (10) and (17), and the main pipes (10) and (1) are provided.
A branch pipe (11) made of a flexible member is attached to the branch part (2).
The main pipes (10), (17) in a form branched via 1)
And the pipe units (2) and (2 ′) are configured in advance, and the pipe units (2) and (2 ′) are placed inside the building with the branch pipe (11) being bent. The main pipes (10) and (1) are conveyed to the construction points (1) and (1 ′) that can be arranged, and at the construction points (1) and (1 ′).
7) is connected to the main pipe (6) of the building, and the tip (11a) side of the branch pipe (11) is connected to the equipment (12) of the building. 2) and (2 ') are laid.
Further, it has main pipes (10) and (17), and the main pipe (1
A branch pipe (11) made of a flexible member is attached to 0) and (17),
The main pipe (10) in the form of branching through the branching part (21)
The pipe units (2) and (2 ′) are constructed by connecting the pipe units (2) and (2 ′). The numbers in parentheses are for convenience of showing the corresponding elements in the drawings, and therefore the present description is not limited to the description in the drawings. The same applies to the following column of [action].

[0006]

With the above-mentioned structure, the present invention functions so that the main pipe (6) and the equipment (12) are communicated with each other. Branch pipe (11)
Acts to bend while being connected to the main pipes (10) and (17).

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view showing an example of a laid state of a piping unit, FIG. 2 is a view showing a transportation state of the piping unit shown in FIG. 1, FIG. 3 is a partially cutaway enlarged view of FIG. 1, and FIG. 4 is shown in FIG. FIG. 6 is a partially broken perspective view of a branch pipe portion in the piping unit, FIG. 5 is a plan view showing another example of the piping unit shown in FIG. 1, and FIG. 6 is a view showing a transportation state of the piping unit shown in FIG.

At a construction site 1 such as an occupied room of an apartment house,
As shown in FIG. 1, the piping unit 2 is laid in such a manner that the piping unit 2 is connected from a meter box 3 or the like arranged in a shared portion or the like shown on the right side of the construction site 1 in the drawing. It has a straight main pipe 10 extending in the middle and left and right directions. Main pipe base 10 shown at the right end portion of the main pipe 10 in the figure
1 has a joint 5 such as a socket and a meter box 3
The main pipe 6 is fixedly connected to the main pipe 10, and the main pipe 10 is connected to the main pipe 10.
1 are provided in the form of being arranged in a plurality in the left-right direction in the drawing.
A branch pipe 11 having flexibility, for example, a rib, as shown in FIG. 4, is connected to each of the branch portions 21 via a branch header 7 as shown in FIG. A water tap 12 for supplying hot water to the equipment constructed at the construction site 1 is connected to each of the tip portions 11a. Each of the faucets 12 can be installed at the construction site 1, for example, in a unit bath 91 having a shape shown on the upper left and right in the drawing, a washing room 92, a toilet 93 shown on the lower left and right in the drawing, a sink 94, a washbasin 95, and the like. Will be placed.

As shown in FIG. 3, the branch header 7 has a pipe body 71, and a plurality of pipe bodies 71 are incorporated in the piping unit 2 so as to divide the main pipe 10 in the left-right direction in the figure. That is, a male screw is formed on the base 71a side of the pipe body 71, that is, the right end side in the figure, and a female screw is formed on the tip 71b side of the pipe body 71. Therefore, the main pipe 10 is appropriately connected to a joint member having a female screw or a male screw formed in a preset and factory-machined form. 7
A plurality of branch headers 7 are incorporated in the main pipe 10 in such a manner that they are integrated with each other by being watertightly screwed into the 1a and the tip 71b. The flow passage 15 is formed in the pipe body 71, and the pipe body 71 is provided with, for example, outlets 71c, 71c shown on the left and right in the drawing in a form in which the flow passage 15 is branched. A female screw is formed on the pipe body 71 at each outlet 71c, and the branch pipe 11 is connected to each outlet 71c in a watertight manner with the female screw via a joint member. There is. Here, the branch header 7
Are formed in different shapes according to the branched state provided in the piping unit 2.

In the branch pipe 11, for example, as shown in FIG.
The ribs 13 are formed in a spiral shape with a predetermined groove pitch L1, and the branch pipe 11 has a branch pipe axis 11CT whose axial direction is the direction of the arrows A and B in the drawing with the groove pitch L1 being slightly larger or smaller. It is configured so that it can be flexibly changed. A flow path 15 is formed in each branch pipe 11, and the flow path 15 is formed from the main pipe 6 through the main pipe 10, that is, the meter box 3 and the respective water taps 12 communicate with each other. 2 are arranged.

Since the construction site 1 has the above-mentioned structure, when laying the piping unit 2 on the construction site 1,
First, as shown in FIG. 2, the branch pipe 11 is appropriately bent to bend the main pipe 10.
The bundling unit 2 is bundled into a broom shape and conveyed to the construction site 1. Then, by bundling the piping units 2 in this way, the piping unit 2 is downsized so as not to take up a space in a material storage area, a factory, a truck bed, or the like, and the miniaturized piping unit 2 is attached to the truck bed. It becomes possible to carry a large amount at a time by stacking them on the etc. Therefore, many occupied rooms where the piping unit 2 can be laid, that is, the construction site 1, are formed in a collective housing such as a super high-rise apartment, so that the piping unit 2 can be downsized and efficiently transported. It is possible to reduce the number of times of transportation to the construction site 1, that is, the materials can be smoothly supplied to the construction site 1.

Now, assuming that a horizontal slab has been cast and constructed at the construction site 1 and no partition, door, etc. have been installed yet,
As shown in FIG. 1, the piping unit 2 conveyed to the construction site 1 in a bunch-shaped bundle is connected to the construction site 1 by connecting the main pipe base 101 side to the main pipe 6 via the joint 5. Deploy. Then, based on the piping plan of the construction site 1 designed in advance, first, the main pipe 10 portion is fixed in a form of being supported by a horizontal slab or the like. Then, since the main pipe 10 is formed in a straight shape so as to extend in the left-right direction in the drawing, the main pipe 10 portion in the unit pipe 2 can be accurately arranged and fixed. In this way, if the main pipe 10 portion is arranged and fixed in the construction site 1, the branch pipes 11 connected to the main pipe 10 are appropriately bent in the form of branching through the branch header 7 in advance, and the respective tip portions 11a of the branch pipes 11 are appropriately bent. Expand the unit bath 91, laundry room 92, toilet 93, sink 94, washbasin 95
The respective branch pipes 11 are positioned so that they are arranged in the same manner. Then, since each branch pipe 11 has flexibility, it is not limited to the equipment members of the construction site 1 other than the piping unit 2, that is, the branch pipe 11 can freely use these members. Each branch pipe 11 can be arranged and fixed in an appropriate position in a manner avoiding the above. The branch pipe 11 is
Main pipe 1 via branch header 7 in the form of being processed in factories, etc.
Since it is already connected to 0, bending the branch pipe 11 separates it from the main pipe 10 at the branch portion 21 portion,
That is, there is no risk of leakage due to defective sealing. In this way, when each branch pipe 11 is positioned, each tip 11a is connected to each water tap 12. At this time, the position of the faucet 12 may be slightly shifted for each construction site 1, but since the branch pipe 11 has flexibility, the position of the tip 11a should be easily changed. Therefore, the tip 11a and the water tap 12 can be reliably connected. By connecting the tip portion 11a to the water tap 12 in this way, the piping unit 2
A meter passage 3 is formed in such a manner that the meter box 3 and each water tap 12 communicate with each other through the main pipe 6, and the meter box 3 is connected to the unit bath 91 and the washing room 92 through the passage 15. , Toilet 93, sink 94, washbasin 9
Hot water can be supplied to the fifth and the like.

Therefore, the piping unit 2 which has been connected and processed in a factory or the like is conveyed to the construction site 1 with a very small amount of work, and is positioned, and the main pipe base 101 is connected to the main pipe 6.
On the side, the pipes can be laid quickly and surely only by connecting the tip portions 11a to the respective water taps 12. In addition, when laying the pipe on the construction site 1 in this way, the main pipe 10 or the branch pipe 11 may be cut if it is necessary to greatly change and correct the pipe position from the design position. At this time, since the main pipe 10 is simply formed in a straight shape,
Since the dimension to be cut can be easily obtained, and the branch pipe 11 is a flexible member, it is possible to easily correct the arrangement by bending so as to allow a cutting error. It is also possible to greatly shift the actual pipe laying position in the design position from the design position. In this way, if the piping unit 2 is laid on the construction site 1, a leak inspection is carried out if necessary. At this time, it has been confirmed that the branch portion 21 has already been inspected in the factory and has no leakage.
Since the piping unit 2 is laid so as to be supported by a slab or the like, the concealed portion is small at the connecting portion, so it is not necessary to carry out a leak inspection without having to perform a leak inspection by performing it from the joint 5 portion, the meter box 3 portion, etc. It can be confirmed that there is no leakage due to poor connection. The piping unit 2 configured to have the same shape as the piping unit 2 is not limited to the construction site 1 having the same shape as the construction site 1, and the piping unit 2 is indicated by an arrow C in FIG. By reversing in the direction, it can be used at a construction site that is symmetrical with the construction site 1 in a reversal plan of an apartment house, so it has high versatility, that is, by using the piping unit 2, the piping material and There is no concern that the construction cost will increase, and economical construction is possible.

By the way, in the above-mentioned embodiment, the main pipe 10 constituting the pipe unit 2 is formed in a straight shape, but the main pipe 6 is connected to the water tap 12 of each facility. In some cases, as shown in FIG. 5, a piping unit 2 ′ provided with a main pipe 17 made of a flexible member may be used. For example, as shown in FIG.
5 is a construction site 1'constructed so as to extend in a direction intersecting the plane of FIG. 5, a piping unit 2'is fixedly connected to the meter box 3 etc., as in the construction site 1 shown in FIG. The main unit 6 is arranged so as to be connected to the main unit 6 via a joint 5.
It is provided so as to be bent at several points on the paper surface of FIG. The main pipe 17 is composed of a flexible member such as a well-known so-called flexible pipe which is processed and molded from a material such as elastic plastic or rubber into a spiral or corrugated pipe or a ribbed pipe similar to the branch pipe 11. In the main pipe 17, the main pipe 10 having the straight shape is formed.
Similarly, the branch pipe 11 is connected to the branch portion 21 via the branch header 7. A branch header 7 provided in the branch section 21 shown in FIG. 5 and a branch pipe 1 connected to the branch section 21.
The configuration of 1 is exactly the same as that of the piping unit 2 described above, and therefore, each branch pipe 11 is made of a flexible member as described above, and its tip portion 11a has a unit bath 9
1, a washing room 92, a toilet 93, a sink 94, a washbasin 9 and the like, respectively.

Therefore, the piping unit 2'is installed at the construction site 1 '.
In order to convey to the factory, each branch pipe 11 is bent along the main pipe 17 as shown in FIG. Does not occupy space such as truck bed or material storage area. Therefore, even if the piping unit 2'is longer than a truck bed or the like, it is possible to carry a large amount of the piping unit 2'at one time and smoothly carry the material. In addition, by bending the main pipe 17 together with the branch pipes 11 to keep the piping unit 2'small, the location of the piping unit 2'is blocked in the construction site such as an apartment house where the construction site 1'is placed. The construction work other than the pipe laying work can be smoothly carried out without slipping. It should be noted that a plurality of piping units 2'will be stacked on top of each other during the transportation and storage. At this time, since the main pipe 17 is made of a flexible member, another pipe stacked on top of it. The weight of the unit 2'can cause a number of units 2'to overlap with each other without the risk of damage such as cracks or shearing occurring in the main pipe 17 and the like in the vicinity of the branch portion 21, and transport and store these under good conditions. Can be done. The piping unit 2'conveyed in this way is
It can be easily laid on the slab of the construction site 1'in the same manner as the above-mentioned piping unit 2, but in this case, the piping unit 2'is made up of not only each branch pipe 11 but also the main pipe 17 from a flexible member. When the pillar 19 is already constructed in the construction site 1 ′ as shown in FIG. 5 or an obstacle such as a shaft or other fixed equipment is arranged, it can be flexibly bent. Also, the portion can be freely circumvented and pipes can be laid accurately without being limited to these. Further, in the construction site 1 ′, when it becomes necessary to correct the piping position as in the case of the construction site 1 described above, the piping unit 2 ′ can bend the main pipe 17 in addition to the branch pipe 11. As much as possible, by simply bending the tubes 11 and 17, it is possible to deal with a considerable amount of layout correction without the trouble of cutting and joining the tubes. The pipe unit 2 ′ thus laid is exactly the same as the pipe unit 2 without any risk of seal failure at the branch portion 21 and each of the tip portions 11 is surely made.
a is connected to each water tap 12, and from the meter box 3 the unit bath 91, the washing room 92, the toilet 93, the sink 9
4, hot water can be supplied to the washbasin 95 and the like. Therefore, the piping unit 2'can lay the piping quickly and accurately with an extremely small amount of work, and can finely respond to the situation of the construction site and sufficiently follow it. In addition, the piping unit 2 ', like the piping unit 2, can be naturally applied to a construction site of a type in which the construction site 1'is inverted in a condominium or the like, and the economical efficiency of both 2 and 2'is almost the same. does not change.

In the above embodiment, the pipe units 2, 2'are used for water supply, hot water supply, etc.
The piping units 2 and 2 ′ are not limited to being used for water supply and hot water supply, but may be used for drainage, air supply and exhaust, gas supply, etc. Further, in the piping units 2 and 2 ′, cable wires and the like may be further provided. There is no problem even if it is used for power supply in the form of being arranged. Further, the construction sites 1, 1 ′ where the piping units 2, 2 ′ are laid are arbitrary, and therefore, the positions and the numbers of the branch portions 21 and the lengths of the branch pipes 11 connected thereto, etc. The configuration may be appropriately changed depending on the position of the water tap 12. In addition, the branch pipe 11
Is not necessarily formed in a tubular shape with ribs as shown in FIG. 4 as long as it is a flexible member. Furthermore, the branch header 7 is connected to the main pipe 10 in a watertight manner to form the flow path 1
As long as 5 can be branched, it does not necessarily have to be configured as shown in FIG.

[0017]

As described above, according to the present invention,
A main pipe such as a main pipe 10 or 17 is provided, and a branch pipe 11 made of a flexible member is connected to the main pipe in a branched manner via a branch portion 21 to connect the main pipe to the pipe units 2 and 2. ', Etc. are configured in advance, and the piping unit is
The branch pipe 11 is conveyed in a bent state to a construction site such as a construction site 1 or 1 ′ that can be arranged in the construction, and at the construction spot, the main side of the main pipe such as the main pipe base 101 is the main pipe of the construction. 6, the main pipe 6 is constructed by laying the piping unit in such a manner that the front end side of the branch pipe such as the front end 11a is connected to the facility of the water faucet 12 or the like. The equipment will be kept inside. Therefore, without having to perform processing such as cutting or joining at the construction site, the piping unit is simply transported and positioned, and the main side of the main pipe is connected to the main pipe 6 and the tip side of the branch pipe is connected to each facility. With a very small amount of work, the main 6
It is possible to complete the pipe laying by passing the equipment inside.
At this time, since the branch pipe 11 is a flexible member, the pipe unit can easily follow the correction of the pipe laying position and the design change, and the pipe unit is branched because the pipe unit is integrally produced at the factory. There is no risk of leakage occurring through the portion 21, so not only is construction efficiency good, but
A highly reliable piping structure can be obtained. That is, according to the present invention, it is possible to lay a highly reliable piping structure easily and quickly by significantly reducing the amount of work in the field. Further, when the main pipe is formed in a straight shape, it is possible to arrange the main pipe in the form of straight extension when laying the piping unit on the construction site. As a result, the piping unit can be easily arranged and fixed at an accurate position, and when it becomes necessary to correct the arrangement of the main pipe portion, the correction, that is, the dimension of the cut portion of the pipe can be easily made. Therefore, more reliable and precise pipe laying can be performed. When the main pipe is made of a flexible member, the main pipe can be bent in addition to the branch pipe 11.
Then, even when an obstacle such as a pillar 19 is arranged at the construction site, it is possible to freely avoid this by bending the main pipe.
The pipe can be laid at an arbitrary position, and when it is necessary to correct the layout of the pipe laying position, the branch pipe 11
Not only can the main pipe be bent, but it is possible to follow a considerable amount of correction, so that more flexible pipe laying work can be performed according to the situation at the construction site. In addition, a main pipe such as the main pipes 10 and 17 is provided, and the main pipe has a branch pipe 11 made of a flexible member.
When the pipe units such as the pipe units 2 and 2'are provided by connecting the pipes to the main pipe in a branched manner via the branch portion 21, the branch pipe 11 is bent in the state of being connected to the main pipe. Can be done. Therefore, when the pipe unit is conveyed, the pipe unit 11 is flexed so that the pipe unit can be miniaturized and conveyed, and the pipe unit can be freely deployed at the construction site, so that the pipe can be efficiently and quickly delivered. Can be laid. Since the piping unit can be used at both of a pair of construction sites that are symmetrically configured by the reversal plan of the housing complex by reversing the piping unit, it is highly versatile and economical. Further, when the main pipe is formed in a straight shape, when the branch pipe 11 is bent to convey the piping unit, the main pipe can be bundled in a form of a core material,
Therefore, its handling is easy. Further, since the main pipe portion is formed in a straight shape, its size can be easily measured, and the position of the branch portion 21 can be easily grasped, so that the piping unit can be managed and laid out very smoothly. obtain. Further, when the main pipe is made of a flexible member, the main pipe together with the branch pipe 11 can be bent, and the pipe unit as a whole can be efficiently transported and stored in an extremely small size. Therefore, since the main pipe part can use a long piping unit, the applicable range of the piping unit can be expanded and the transportation and storage of the piping unit will not be blocked, so construction work other than pipe laying work can be performed. Can also be done smoothly. In addition, even if there is a bent portion at the construction site, it can be easily followed by bending the main pipe by bending the main pipe, making it easier to adapt the piping unit to the shape of the construction site. Therefore, the piping unit can be applied to construction sites of various shapes.

[Brief description of drawings]

FIG. 1 is a plan view showing a laid state of a piping unit.

FIG. 2 is a diagram showing a transportation state of the piping unit shown in FIG.

3 is a partially cutaway enlarged view of FIG.

FIG. 4 is a partially cutaway perspective view of a branch pipe portion in the piping unit shown in FIG.

FIG. 5 is a plan view showing another example of the piping unit shown in FIG.

FIG. 6 is a diagram showing a transportation state of the piping unit shown in FIG.

[Explanation of symbols]

 2, 2 '... Piping unit 21 ... Branch 6 ... Main pipe 10, 17 ... Main pipe 101 ... Main pipe source (main pipe source) 11 ... Branch pipe 11a ... Branch pipe tip (tip portion) 12 ... Facilities (hydrants)

Claims (6)

[Claims] 1. A piping unit having a main pipe, wherein a branch pipe made of a flexible member is connected to the main pipe so as to be branched through a branching portion to form a piping unit. The piping unit has been conveyed to a construction site that can be arranged in the building in a state in which the branch pipe is bent, and at the construction site, while connecting the main side of the main pipe to the main pipe of the construction, A piping laying method, wherein the piping unit is laid in such a manner that the tip end side is connected to the equipment of the building. 2. The pipe laying method according to claim 1, wherein the main pipe is formed in a straight shape. 3. The pipe laying method according to claim 1, wherein the main pipe is made of a flexible member. 4. A piping unit comprising a main pipe, wherein the main pipe is provided with a branch pipe made of a flexible member and connected to the main pipe so as to be branched via a branch portion. 5. The piping unit according to claim 4, wherein the main pipe is formed in a straight shape. 6. The piping unit according to claim 4, wherein the main pipe is made of a flexible member.