JPH07301367A - Vertical piping method inside the pipe shaft - Google Patents

Abstract

PURPOSE:To provide a vertical pipe arranging method into a pipe shaft whereby conveyance is facilitated further with execution high efficiently carried out to decrease a man-hour, though a long scaled piping unit is constituted by preassembly. CONSTITUTION:A plurality of pipes 2, in an end part thereof, are successively connected in a vertical line shape through a folding connection member 3, to constitute a piping unit 1 by preassembly, and this piping unit 1, in a condition that it is zigzag folded, is carried into a lower part of a pipe shaft 6, to successively draw up a group of the pipes 2 of the piping unit 1 from that in the end part extended and inserted into the pipe shaft 6, so as to connect the fellow butt end parts sealed of the adjacent pipes 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for vertically installing pipes in a pipe shaft of a multi-layer structure.

[0002]

2. Description of the Related Art Conventionally, piping in a pipe shaft has been constructed by the following construction method. (A) A method in which pipes are lifted one by one from the lower floor and sequentially connected after slabs for one floor have been cast. (B) Pipes for two or three floors are preassembled at the factory together with the support frame. And the pipe shaft unit construction method that lifts and installs when constructing the steel frame

[0003]

The construction method (a) for each floor has the following drawbacks. It is necessary to lift the pipes one by one from the lower floor, and since one pipe is short, the number of installation steps is large and it is difficult to perform highly efficient work. Since there are many pipe connections at the installation site, work errors such as assembly errors and tightening errors tend to occur. Since the work will be done after the slab has been cast, there is a waiting period for the work, and it is difficult to level the worker deployment.

Further, the pipe shaft unit construction method (b) has the following drawbacks. The number of supporting frames for fixing several pipes over about 8 to 12 m increases, and the cost of accessories increases. A jig or the like is required to secure the rigidity of the unit when it is erected by a tower crane from the state of being transported to the site. Since a long unit exceeds 10 m, it is difficult to carry, and as a result, it was virtually impossible to manufacture a long unit having three or more floors.

The present invention has been made by paying attention to such an actual situation. Even though the long piping unit is pre-assembled, it is easy to carry, and the number of man-hours is high and the construction is performed with high efficiency. An object of the present invention is to provide a method of vertical piping in a pipe shaft that can be performed.

[0006]

In order to achieve the above object, the present invention employs the following technical means. That is,

According to a first aspect of the present invention, there is provided a method for vertically piping a pipe shaft in which a plurality of pipes are sequentially connected in a columnar manner at their ends via interlocking connecting members to preassemble a pipe unit. , This piping unit is folded into a zigzag shape and carried into the lower part of the pipe shaft, and the piping group of the piping unit is pulled up and extended in order from the end and inserted into the pipe shaft. It is characterized by sealing and connecting the comrades with a joint.

According to a second aspect of the present invention, there is provided a method for vertically pipe-forming a pipe shaft, wherein a plurality of pipes are sequentially pivoted in a column-like manner so that one end of the pipe can be swung through a folding connecting member. The pipe unit is connected in a foldable manner, the foldable pipe unit is assembled in advance, and the pipe unit is folded into a folded shape and carried into the lower part of the pipe shaft, and the pipe group of the pipe unit is pulled up in order from the end to extend the pipe. It is characterized in that it is inserted into the shaft, and the joint ends of adjacent pipes are sealed and connected by a joint.

According to a third aspect of the present invention, there is provided a vertical piping method for a pipe shaft, in which a plurality of pipes are sequentially connected in a column shape at the ends thereof via a connecting member for folding, and the pipe units are first connected. Assemble the pipe unit into a folded shape and carry it into the lower part of the pipe shaft, pull up and extend the pipe group of the pipe unit from the end to insert it into the pipe shaft, and butt the adjacent pipes together. The ends of the pipes are sealed and connected by joints, and the pipe shaft is equipped with a partitioning member that can change its posture between the folding position along the pipe and the projecting position protruding outward from the pipe at the proper place. It is characterized in that the partition member is switched to the projecting posture after the pipe is inserted into the pipe shaft to partition the pipe shaft into upper and lower parts.

Further, the method of vertical piping in the pipe shaft according to claim 4 of the present invention is the method of vertical piping in any one of claim 1, claim 2, or claim 3 for folding the piping unit. The connecting member is characterized in that a plurality of pipes are supported in parallel to form a pipe system of a plurality of paths.

[0011]

According to the vertical piping method of the first aspect, even if a long piping unit is constructed, it can be stacked compactly by folding it in a zigzag shape, and it can be easily transported to the site by loading it on a carrier. it can. Then, transfer the pipe unit that was brought in to a trolley, etc., move it to the lowest floor of the installation site, set it under the pipe shaft, lift and expand the pipe in order from the end of the pipe unit, and move it all at once on the pipe shaft. Can be inserted into. After that, the butt ends of the respective pipes are sealed and connected by a joint, and the pipes are connected and fixed to the structure by appropriate means, whereby the pipe construction is completed.

According to the vertical piping method of claim 2, the piping can be installed in the same manner as the vertical piping method of the above-mentioned claim 1, but in particular, each pipe composing the piping unit can be swung at one point. Since they are pivotally connected, both pipes are in the relative positional relationship (concentric) specified at the time of factory assembly when the adjacent pipes are extended in a straight line and the ends are abutted against each other. Connection processing becomes easy.

Also, in the vertical piping method of claim 3,
The pipe can be constructed in the same manner as the vertical piping method of claim 1, but in particular, after inserting the linearly extended pipe unit into the pipe shaft, the partition member is switched to the overhanging posture to move the pipe shaft up and down. The fireproof compartment can be easily constructed by partitioning into

Further, according to the vertical piping method of claim 4, in carrying out the piping method of claim 1, claim 2, or claim 3, a plurality of long piping systems can be constructed all at once. it can.

[0015]

According to the vertical piping method of the first aspect of the present invention, the following effects are exhibited. Since the piping unit to be assembled in advance can be folded and transported compactly, the piping unit is assembled in advance, but a long piping unit that cannot be realized by the pipe shaft unit method is manufactured, and a long piping system can be efficiently assembled. Can now be installed. Since the insertion into the pipe shaft only pulls up and expands the folded piping unit, the number of man-hours for installation is small and the work efficiency can be improved.

According to the vertical piping method according to claim 2 of the present invention, the basic effect of the invention according to claim 1 is exhibited, and the positional relationship between the extended pipes is predetermined by the folding connecting member. Therefore, it becomes possible to easily and easily perform the sealing connection of the respective pipes with high positioning accuracy.

According to the vertical piping method of the third aspect of the present invention, the basic effect of the invention of the first aspect is exhibited, and at the same time, the formation of the fireproof section in the pipe shaft can be easily performed. The workability as a whole could be improved.

According to the vertical piping method of claim 4 of the present invention, while exerting the effects of the invention of each of the above claims,
A plurality of piping systems can be configured at once, and vertical piping can be installed with higher workability, and the practical effect is further enhanced.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the entire piping unit 1 used in the present invention. This piping unit 1 is a basic unit that forms a single piping system, and a plurality of pipings 2 each having a length that can be loaded on a truck carrier are inserted at their end portions via interlocking connecting members 3. The pipes 2 are sequentially connected in a straight line to have a total length of several tens of meters, and each pipe 2 is sequentially folded in the opposite direction so that it can be folded in a zigzag shape.

As shown in FIGS. 2 and 3, the folding connection member 3 is provided with a pipe support portion 3a which is externally fitted near each end of the adjacent pipe 2 and is fixed by tightening the pipe support portion 3a. By connecting both support arms 3b with a pin, it becomes possible to rotate at a single point between a state in which both vertical pipes 2 are arranged in parallel and an extended state in which they are concentrically butted and opposed to each other. There is. That is, the both support arms 3
By setting the pin connection fulcrum p of b on the extension surface of the end face of each pipe 2 at the same distance from the axial center of each pipe 2, both pipes 2 in the extended state are concentrically opposed to each other. It is.

On the outer surface near the end of each vertical pipe 2,
A contact member 4 that regulates the folding amount is projected so that the vertical pipes 2 folded in a zigzag shape are parallel to each other, and the pipe unit 1 can be stably and compactly folded and transported.

The procedure for installing the piping unit 1 having the above structure on the pipe shaft will be described with reference to the drawings. The long piping unit 1 assembled to a desired length in a factory is folded in a zigzag form, stacked, loaded on a transportation vehicle such as a truck, and carried into a work place. The pipe unit 1 that has been carried in is transferred to the cart 5 in the folded state, sent to the installation site on the lowest floor, and positioned below the pipe shaft 6. The hoisting tool 7 such as a hook that is unloaded from the upper portion of the pipe shaft 6 is attached to the uppermost layer pipe 2 in the piping unit 1.
The free ends are connected to each other, and the hoisting tool 7 is lifted to sequentially extend the pipe group 2 upward, and then the hoisting tool 7 is hoisted and inserted into the pipe shaft 6. At this time, since the pin connection fulcrum p of the pipe 2 changes to the left and right with the pipe 2 as the lifting progresses, the bogie is moved left and right accordingly, and the swinging motion of the pipe 2 is reduced to perform the lifting. Next, as shown in FIG. 5 (a), the ends of adjacent pipes 2 are sealed and connected by a joint 8, and the pipes 2 are fixed to the structure by appropriate means, which is long for several floors. Installation of the piping unit 1 is completed.

Here, as a sealing connecting means for connecting the ends of adjacent pipes 2 to each other, as shown in FIG. 5B, a grooved type engaging with an annular groove 2a formed on the outer periphery of the end of the pipe 2. It is possible to appropriately select a means of using the joint 8 of FIG. 6, a means of using the flange type joint 8 for directly connecting the flanges 8a provided at the end of the pipe 2 to each other by bolts as shown in FIG. In addition, the connecting member 3 for folding the pipe 2
It is also possible to weld and fix the pipe support portion 3a or the support arm 3b to the pipe 2 as a means for providing.

[Other Embodiments] The present invention can also be implemented in the following modes. (A) As shown in FIGS. 8 to 10, the pipe support portion 3 of the folding connection member 3 which is rotatable around the pin connection fulcrum p by one point.
a is composed of a pair of pipes, and a plurality of pipes 2
Since the piping unit 1 is configured by fixing and supporting the above in parallel with the band 9 or the like, a plurality of piping systems can be installed at the same time. (B) As shown in FIG. 11, the posture can be changed at a proper position of the pipe 2 by folding around the fulcrum q into a folding posture along the pipe 2 and a protruding posture projecting orthogonally to the outside of the pipe 2. The plate-shaped partitioning member 10 is attached, and the partitioning member 10 is placed in the folded posture to connect the piping unit 1 to the pipe shaft 6
After being suspended and inserted into the pipe shaft 6, the partition member 10 is switched to the overhanging posture, and the partition member 10 in the overhanging posture is brought into contact with the floor portion 11 in the pipe shaft 6, thereby
The fire protection compartment can be configured.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Side view of the piping unit

FIG. 2 is a side view of the pipe connecting portion in a folded state.

FIG. 3 is a plan view of the pipe connecting portion in a folded state.

FIG. 4 is an explanatory view showing the installation process of the piping unit.

[FIG. 5] (a) Side view of the pipes that are connected by hoisting. (B) Side view of the pipes that are connected by hoisting and showing a partly cutaway view.

FIG. 6 is a side view showing another embodiment of the joint. (A) Folded state (b) Stretched and connected state (c) Plan view of folded state

FIG. 7 is a side view showing a piping unit of another embodiment.

FIG. 8 is a view on arrow aa in FIG.

FIG. 9 is a side view of a pipe unit of another embodiment in a folded state of a pipe connecting portion.

FIG. 10 is a side view of a piping unit of another embodiment in an extended state of a pipe connecting portion.

FIG. 11 is an explanatory view showing a hoisting state of still another embodiment. (A) A side view of the hoisting state in the pipe shaft. (B) bb line sectional view in FIG. 11 (a). (C) FIG. 11 ( B) sectional view taken along line c-c

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Piping unit 2 Piping 3 Folding connection member 6 Pipe shaft 8 Joint 10 Partition member

Claims (4)

[Claims] 1. A plurality of pipes (2) are sequentially connected in a column shape at their ends via interlocking connecting members (3) to form a pipe unit (1) in a pre-assembled manner. ) Is carried in the lower part of the pipe shaft (6) in a zigzag shape, and the pipe (2) group of the pipe unit (1) is pulled up in order from the end and extended to be inserted into the pipe shaft (6). The method of vertical piping in a pipe shaft is characterized in that the butted ends of adjacent pipes (2) are sealed and connected by a joint (8). 2. A pipe unit (1) which is foldable by sequentially pivotally connecting a plurality of pipes (2) in a column shape at one end of the pipes (2) via a connecting member (3) for folding so as to be swingable. The pipe unit (1) is assembled in a pre-assembled manner and is carried into the lower part of the pipe shaft (6) in a state where it is folded into a zigzag shape, and the pipe (2) group of the pipe unit (1) is pulled up and expanded in order from the end. Then pipe shaft (6)
A method for vertical piping in a pipe shaft, characterized in that the butt ends of adjacent pipes (2) are sealed and connected by a joint (8). 3. A plurality of pipes (2) are sequentially connected in a column shape at their ends via interlocking connecting members (3) to form a pipe unit (1) in a pre-assembled manner. ) Is carried in the lower part of the pipe shaft (6) in a zigzag shape, and the pipe (2) group of the pipe unit (1) is pulled up in order from the end and extended to be inserted into the pipe shaft (6). Then, the abutting end portions of the adjacent pipes (2) are sealed and connected by the joint (8), and the pipe (2) is folded in a proper position at a proper position of the pipe (2). The pipe shaft is equipped with a partition member (9) whose posture can be changed to an outwardly protruding posture, and after the pipe is inserted into the pipe shaft (6), the partition member (9) is switched to the extended posture. (6) Pipe pipe characterized by dividing the inside into upper and lower parts Vertical piping method inside the shaft. 4. A pipe system of a plurality of paths is configured by supporting a plurality of pipes (2) in parallel on a folding connection member (3) of the pipe unit (1). The method of longitudinal piping in a pipe shaft according to any one of claim 1, claim 2, and claim 3.