JP2022159687A - Through hole arrangement material - Google Patents

Abstract

To provide a through hole arrangement material capable of being constructed without any problems even when a through hole and a long body are misaligned.SOLUTION: A through hole arrangement material 1 comprises: a locking part 2 that is used to fill a space of a portion through which a long body L penetrates in a through hole H formed in a partition body C in a structure, is located at an outer edge in a radial direction, and is locked to an outer surface surrounding the through hole H or an inner peripheral surface of the through hole H when arranged in the through hole H; a hole part 3 located inside in the radial direction, and through which the long body L passes; and a displacement absorption part 4 that is located between the locking part 2 and the hole part 3, can expand and contract in the radial direction, and can change the position of the hole part 3 in the radial direction along with the expansion and contraction.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a through-hole placement material used to fill a space in a portion of a through-hole formed in a partition such as a floor or a wall of a structure such as a building, through which a long body penetrates.

Patent Document 1 describes a structure in which a through hole formed in a floor slab is filled with mortar and a thermally expandable refractory material around an elongated pipe (drainage vertical pipe) passing through the through hole. It is

By the way, when a pipe is passed through a through hole, it is ideal that the center of the pipe is aligned with the diameter center of the through hole. In particular, when piping is arranged over multiple floors of a building, even if there is no misalignment in the floor slab of one floor, misalignment may occur in the floor slabs of other floors. When the misalignment is significant, the mortar placed around the pipe becomes thin, and when the pipe expands and contracts due to temperature changes, the mortar cannot withstand and may be damaged.

JP 2007-56537 A

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a through-hole arrangement member that can be installed without problems even if the through-hole and the elongated body are misaligned.

The present invention is used to fill a space in a portion of a through hole formed in a partition of a structure through which an elongated body penetrates. a locking portion that is locked to the outer surface surrounding the through hole or the inner peripheral surface of the through hole; a hole that is located inside in the radial direction and penetrates so that the elongated body passes through; and a displacement absorbing portion located between the through hole portion and the through hole portion, capable of absorbing radial displacement and capable of changing the radial position of the hole portion.

According to this configuration, even if the through hole and the elongated body are out of alignment with each other, the position of the hole can be made to follow the elongated body by the displacement absorbing portion.

Further, at least the displacement absorbing portion is made of a material having elasticity, and the displacement absorbing portion has a portion inclined with respect to the axial direction of the through hole when arranged in the through hole. The slope may change with absorption.

According to this configuration, the position of the hole in the radial direction can be changed by changing the inclination of the displacement absorbing portion.

Also, the displacement absorbing portion may have a bellows.

According to this configuration, the displacement absorbing portion can be formed by a bellows that is easy to form.

Also, a thermal expansion member may be provided so as to contact the inclined portion.

According to this configuration, the thermal expansion material can be positioned in the space defined by the inclined portion.

Also, a thermal expansion material may be provided so as to contact at least the edge of the hole.

According to this configuration, the thermal expansion material can be positioned near the elongated body.

According to the present invention, even if the through hole and the elongated body are misaligned, the position of the hole can be made to follow the elongated body by the displacement absorbing portion. Therefore, even if the through hole and the elongated body are misaligned, construction can be performed without any problem.

1 is a vertical cross-sectional view (excluding piping) at the center of a diameter when arranged in a through-hole, showing the through-hole arrangement member according to the first embodiment of the present invention; FIG. FIG. 6 is a vertical cross-sectional view (excluding piping) at the center of diameter when the through-hole arrangement member according to the second embodiment of the present invention is arranged in the through-hole. FIG. 11 is a vertical cross-sectional view (excluding piping) at the center of diameter when the through-hole arrangement member according to the third embodiment of the present invention is arranged in the through-hole. FIG. 11 is a vertical cross-sectional view (excluding piping) at the center of diameter when arranged in a through-hole, showing a through-hole arrangement member according to a fourth embodiment of the present invention. FIG. 10 is a vertical cross-sectional view (excluding piping) at the center of diameter when arranged in a through-hole, showing a through-hole arrangement member according to a fifth embodiment of the present invention. FIG. 10 is a vertical cross-sectional view (excluding piping) at the center of diameter when arranged in a through-hole, showing the through-hole arrangement member according to the sixth embodiment of the present invention. FIG. 11 is a vertical cross-sectional view (excluding piping) at the center of diameter when arranged in a through-hole, showing a through-hole arrangement member according to a seventh embodiment of the present invention. FIG. 11 is a vertical cross-sectional view (excluding piping) at the center of diameter when arranged in a through-hole, showing the through-hole arrangement member according to the eighth embodiment of the present invention. FIG. 20 is a vertical cross-sectional view (excluding piping) at the center of diameter when arranged in a through hole, showing the through hole arrangement member according to the ninth embodiment of the present invention. FIG. 20 is a vertical cross-sectional view (excluding piping) at the center of diameter when arranged in a through-hole, showing the through-hole arrangement member according to the tenth embodiment of the present invention.

Next, ten embodiments of the present invention will be described. In addition, the expression of the direction in the following description is based on the direction in the state shown in each figure when the through-hole arrangement member 1 is arranged in the through-hole H. FIG.

The through-hole arrangement material 1 of each embodiment is applied to a building. However, it can also be applied to structures that do not correspond to buildings (civil engineering structures, etc.). A partitioning body is, for example, a plate-like portion arranged at the boundary between adjacent areas when a building is partitioned into a plurality of areas, and corresponds to a floor (floor slab) C, a wall, or the like. Elongated bodies are pipes L and electrical wiring that are arranged over a plurality of areas of a building. The elongated body used in each of the following embodiments is one pipe L, more specifically, a drainage stack. The cross-sectional shape of the pipe L used in each of the following embodiments is circular. The elongated body may be, for example, a collection of a plurality of pipes, a combination of pipes and electric wiring, or a combination of pipes or electric wiring and a heat insulating material or cushioning material surrounding the outer periphery thereof.

-First Embodiment-
A first embodiment is shown in FIG. The through-hole arrangement member 1 of the first embodiment has a main body (a portion excluding a thermal expansion member 5 described later) formed in a rotationally symmetrical disk shape. The through-hole arrangement member 1 includes a locking portion 2 positioned on the outer edge in the radial direction, a hole portion 3 positioned on the inner side in the radial direction, and a displacement absorbing portion 4 positioned between the locking portion 2 and the hole portion 3. and have

The locking portion 2 is positioned at the radial outer edge of the through-hole arrangement member 1 and is locked by abutting against the outer surface (upper surface in the case of the floor C) surrounding the through-hole H in the building. The hole portion 3 and the displacement absorbing portion 4 can be positioned with respect to the through hole H by locking the locking portion 2 to the building.

The hole portion 3 penetrates in the thickness direction of the disc-shaped shape so that the pipe L can pass therethrough, and is symmetrical with the cross-sectional shape of the pipe L in a plan view. Specifically, the hole 3 is formed in a circular shape with a slightly smaller diameter than the cross-sectional shape of the pipe L, and when the pipe L is passed through, the hole 3 is expanded by the pipe L and expanded in diameter. ing. Therefore, the pipe L comes into contact with the edge portion (diameter direction inner edge portion) 31 of the hole portion 3 . Specifically, they abut on the entire circumference.

The displacement absorbing portion 4 can absorb radial displacement and change the radial position of the hole portion 3 . For example, it can be implemented as an expandable/contractible portion that can expand and contract in the radial direction and that can change the position of the hole portion 3 in the radial direction as it expands and contracts. At least the displacement absorbing portion 4 of the through-hole arrangement member 1 is made of an elastic material. In this embodiment, the entire portion of the through-hole arrangement member 1 excluding the thermal expansion member 5 is made of soft resin. The displacement absorbing portion 4 has a portion 41 that is inclined with respect to the axial direction of the through hole H (with respect to the thickness direction of the through hole arrangement member 1) when arranged in the through hole H. As shown in FIG. The slope of this portion changes with the expansion and contraction. The displacement absorbing portion 4 has a bellows (bellows portion) that is folded up and down in the radial direction. Since the displacement absorbing portion 4 can be formed by the bellows, which is easy to form due to its general shape, the through-hole arrangement member 1 can be formed easily. A portion of the bellows is said inclined portion 41 . The bellows in the first embodiment, as shown in FIG. 1, has a shape in which it is folded downward, then upward, and then folded back further downward from the outer diameter position to the inner diameter position. The folded portion is curved with a constant curvature as shown. In addition, the radially outer folded portion (downwardly convex) and the radially inner folded portion (upwardly convex) are formed at positions of concentric circles in a plan view. The displacement absorbing portion 4 of the first embodiment expands and contracts by radially expanding and contracting the folded portion of the bellows. The displacement absorbing portion 4 in which the bellows expands and contracts in this manner allows the position of the hole portion 3 to follow the position of the pipe L even if the through hole H and the pipe L are misaligned. Further, the radial position of the hole portion 3 can be changed by changing the inclination of the displacement absorbing portion 4 .

In the through-hole arrangement member 1 of the first embodiment, the thermal expansion member 5 is provided so as to be in contact with the edge portion (inner edge portion in the radial direction) of the hole portion 3 . Due to this positional relationship, the thermal expansion material 5 can be positioned near the pipe L. As shown in FIG. Therefore, the expanded thermal expansion material 5 can quickly fill the space created when the pipe L is destroyed by fire. The thermal expansion material 5 may be provided integrally with the hole portion 3, or may be formed separately from the hole portion 3 and provided so as to be continuous with the hole portion 3 when arranged in the through hole H. may be The thermal expansion material 5 is generally distributed, and expands by receiving heat at the time of fire, and fills the space of the through hole H (including the space created by burning the pipe L etc.), thereby closing the through hole. Prevents fire from spreading to other areas related to the partition through H.

-Second embodiment-
A second embodiment is shown in FIG. Since the basic configuration of the second to tenth embodiments is the same as that of the first embodiment, the configuration different from that of the first embodiment will be mainly described below. The displacement absorbing portion 4 of the second embodiment has an upward convex shape between the locking portion 2 and the hole portion 3 . Specifically, it extends downward along the inner surface of the through hole H from the radial inner edge of the locking portion 2, extends radially inward and upward (diagonally upward), and extends radially inward and downward (diagonally upward) beyond the top portion. downwards) and upwards along the pipe L, forming a generally "W" shape in the range of radii. The displacement absorbing portion 4 of the second embodiment expands and contracts as the substantially "W"-shaped portion expands and contracts in the radial direction. The direction in which each portion of the displacement absorbing portion 4 extends is a straight line in a vertical cross-sectional view. The thermal expansion member 5 is provided so as to extend downward from each of the radially innermost portion and the radially innermost portion of the through-hole arrangement member 1 excluding the locking portion 2 . The thermal expansion member 5 is provided so as to abut against the lower ends of the respective portions of the through-hole arrangement member 1 . Here, the thermal expansion material 5 in the first embodiment was provided so as to be in contact with the edge (inner edge) of the hole 3, but in addition to this, as in the second embodiment, the through hole Another thermal expansion material 5 can also be provided in other portions of the arrangement member 1 or inside the through hole H.

-Third Embodiment-
A third embodiment is shown in FIG. The displacement absorbing portion 4 of the third embodiment has a substantially "U" shape in the range of radius that is convex downward. The displacement absorbing portion 4 of the third embodiment expands and contracts as the substantially "U"-shaped portion expands and contracts in the radial direction. A thermal expansion member 5 is arranged in a space opened upward in the displacement absorbing portion 4 . That is, the thermal expansion member 5 is provided so as to contact the portion 41 of the displacement absorbing portion 4 that is inclined with respect to the axial direction of the through hole H. As shown in FIG. Since the thermal expansion material 5 can be positioned in the space defined by the inclined portion 41, which in the third embodiment is the space of the bag-like portion with the upper opening in the vertical cross-sectional view, the thermal expansion material 5 is not expanded. The thermal expansion material 5 in the state can be stably held. Further, the main body of the through-hole arrangement member 1 and the thermal expansion member 5 can be easily formed integrally. As the thermal expansion material 5, a soft material such as a sponge-like material or a low-viscosity thermal expansion putty is used.

-Fourth Embodiment-
A fourth embodiment is shown in FIG. The displacement absorbing portion 4 of the fourth embodiment extends radially inward and downward from a radially outer and upper position. That is, the displacement absorbing portion 4 has a shape that descends obliquely downward toward the inner diameter (descends with a superficial gradient). The displacement absorbing portion 4 of the fourth embodiment expands and contracts by changing the inclination of the portion that descends obliquely downward. A thermal expansion member 5 is arranged in a space opened upward from the displacement absorbing portion 4 . That is, the thermal expansion member 5 is provided so as to contact the inclined portion 41 of the displacement absorbing portion 4 . The thermal expansion member 5 is positioned in the space defined by the inclined portion 41, which is the space between the inner surface (the inner surface in the radial direction) of the displacement absorbing portion 4 and the outer surface of the pipe L in the longitudinal cross-sectional view in the fourth embodiment. can stably hold the thermal expansion material 5 in an unexpanded state.

- Fifth Embodiment -
A fifth embodiment is shown in FIG. The fifth embodiment has the same configuration as the first embodiment except for the arrangement of the thermal expansion material 5. FIG. That is, the displacement absorbing portion 4 of the fifth embodiment has a bellows, and has a shape that is folded downward, then upward, and then folded back further downward from the outer diameter position to the inner diameter position. The displacement absorbing portion 4 of the fifth embodiment expands and contracts by radially expanding and contracting the folded portion of the bellows. A thermal expansion member 5 is arranged in each space that is open above and below the displacement absorbing portion 4 .

-Sixth Embodiment-
A sixth embodiment is shown in FIG. The displacement absorbing portion 4 of the sixth embodiment has an upwardly opening annular groove in a plan view, and the thermal expansion member 5 is arranged in the groove. The displacement absorbing portion 4 of the sixth embodiment expands and contracts due to radial expansion and contraction of the groove and adjacent portions inside and outside the diameter of the groove. A vertical member 6 extends downward from the boundary portion between the locking portion 2 and the displacement absorbing portion 4 so as to be able to follow the inner surface of the through hole H of the building. The hole portion 3 extends downward from the radial inner edge of the displacement absorbing portion 4 .

-Seventh Embodiment-
A seventh embodiment is shown in FIG. A metal bellows 7 (71) made of a metal plate is used for the displacement absorbing portion 4 of the seventh embodiment. The metal bellows 71 of the seventh embodiment has a wavy shape extending in the radial direction by being folded back a plurality of times in a vertical cross-sectional view. The inside is in contact with the pipe L through the hole 3 . The displacement absorbing portion 4 of the seventh embodiment expands and contracts by radially expanding and contracting the folded portion of the metal bellows 71 . As the thermal expansion material 5, a soft material such as a sponge-like material or a low-viscosity thermal expansion putty is used.

-Eighth Embodiment-
An eighth embodiment is shown in FIG. A metal bellows 7 (72) is used for the displacement absorbing portion 4 of the eighth embodiment as in the seventh embodiment. The metal bellows 72 is folded back multiple times in the radially inward and outward directions in a longitudinal cross-sectional view to form a wave-like shape extending in the vertical direction. and is in contact with the pipe L through the hole 3 . In the displacement absorbing portion 4 of the eighth embodiment, when the bent portion of the metal bellows 72 shifts in the radial direction (direction intersecting with the bent direction) and the through hole H and the elongated body are misaligned, The position of the hole portion 3 is followed by misalignment. As the thermal expansion material 5, a soft material such as a sponge-like material or a low viscosity thermal expansion putty is used.

-Ninth Embodiment-
A ninth embodiment is shown in FIG. The displacement absorbing portion 4 of the ninth embodiment uses, for example, a spongy flexible annular body 42 made of a soft material. The radially outer portion of the displacement absorbing portion 4 is fixed to the building via the locking portion 2 , and the radially inner portion is in contact with the pipe L via the hole portion 3 . The displacement absorbing portion 4 of the ninth embodiment expands and contracts as the flexible annular body 42 expands and compresses in the radial direction. The thermal expansion material 5 of the ninth embodiment is continuously provided below the hole 3 . Note that the thermal expansion material 5 may be provided below the locking portion 2 .

- Tenth embodiment -
A tenth embodiment is shown in FIG. A tubular hollow annular body 43, for example, is used for the displacement absorbing portion 4 of the tenth embodiment. The radially outer portion of the displacement absorbing portion 4 is fixed to the building via the locking portion 2 , and the radially inner portion is in contact with the pipe L via the hole portion 3 . The displacement absorbing portion 4 of the tenth embodiment expands and contracts as the hollow annular body 43 expands and compresses in the radial direction. In the tenth embodiment, the thermal expansion material 5 is continuously provided below the hole 3 . Note that the thermal expansion member 5 may be provided below the locking portion 2 .

Although ten embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention. can.

For example, the locking portion 2 is not limited to being exposed on the outer surface surrounding the through hole H in the building as in each of the above-described embodiments, and by being locked to the inner peripheral surface of the through hole H, The whole may be located inside the through hole H.

Further, when the displacement absorbing portion 4 has a bellows, the folds forming the bellows may be folded back in a straight line, or may be folded back in a curved manner.

Moreover, the thermal expansion material 5 may be provided continuously in the circumferential direction, or may be provided intermittently in the circumferential direction.

REFERENCE SIGNS LIST 1 through-hole arrangement member 2 engaging portion 3 hole portion 4 displacement absorbing portion 41 inclined portion of displacement absorbing portion 42 flexible annular body 43 hollow annular body 5 thermal expansion member 6 vertical member 7 metal bellows 71 metal bellows (seventh embodiment) )
72 metal bellows (eighth embodiment)
C Compartment body of building, floor H Penetration hole L Long body, piping

Claims (5)

It is used to fill the space of the part through which the long body penetrates in the through hole formed in the partition body in the structure,
a locking portion positioned at a radially outer edge and locked to an outer surface surrounding the through hole or an inner peripheral surface of the through hole when arranged in the through hole;
a hole located inside in the radial direction and through which the elongate body passes;
a through-hole arrangement member having a displacement absorbing portion located between the locking portion and the hole portion, capable of absorbing radial displacement, and capable of changing a radial position of the hole portion. . At least the displacement absorbing portion is made of a material having elasticity,
2. The through-hole arrangement according to claim 1, wherein said displacement absorbing portion has a portion inclined with respect to the axial direction of said through-hole when arranged in said through-hole, and said inclination changes as said displacement is absorbed. material. 3. The through hole arrangement material according to claim 2, wherein said displacement absorbing portion has a bellows. 4. The through-hole arrangement member according to claim 2, wherein a thermal expansion member is provided so as to contact said inclined portion. The through-hole arrangement member according to any one of claims 1 to 3, wherein a thermal expansion member is provided so as to be in contact with at least the edge of the hole.

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