JPH08126167A - Support for through hole filler - Google Patents

Abstract

PURPOSE: To make it possible to save cost and maintain fire preventing capability, and further accommodate a wide variety of long bodies (or a group of long bodies) to be inserted into a through hole, with different outside diameters. CONSTITUTION: The support for through hole filler includes a support plate H, capable of receiving filler J to the filled in a through hole 2 formed in a structural body 1, on the forward side in the direction of filling the filler J; anchoring sections 6 capable of being anchored to the structural body 1; a frame F containing a receiving section 5 for receiving the support plate H; and a shift preventing means U that is placed between the receiving section 5 and the support plate H, and that prevents the support plate H from moving inward in the direction of the radius of the through hole 2 with respect to the receiving section 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filler supporter for a through hole which is capable of supporting a filler in the space around the insertion portion of an elongated body inserted through the through hole provided in a structure.

[0002]

2. Description of the Related Art Conventionally, as a filler supporting member for a through hole of this kind, a receiving plate portion for receiving the filler filled in the through hole is provided on the front side in the filling direction of the filler into the through hole. And a frame integrally provided with the receiving plate part and a locking part that can be locked to the structure, and the frame and the receiving plate part are engaged with the structure by the locking part. The elongated body is inserted through the insertion hole formed in the central portion of the receiving plate portion, and the filler is packed between the elongated body and the wall of the through hole to be supported by the receiving plate portion. there were.

[0003]

According to the above-mentioned conventional filling material supporter for the through hole, since the receiving plate portion and the locking portion are integrally formed, for example, the receiving plate portion is inserted. If the outer diameter of the elongated body (or group of elongated bodies) to be inserted is significantly smaller than the size of the holes, the filler will easily fall out from the gap between them and the through-hole sealing performance will be improved. There is a risk of getting sick. Therefore, in order to maintain the airtightness of the through hole, it is necessary to prepare a plurality of types of filler support tools having different sizes of the insertion holes, which is uneconomical.

In order to solve this drawback, the frame and the receiving plate are separately formed, and the outer diameter of the elongated body (or elongated body group) to be inserted into the bottom portion of the frame is set. It is proposed to mount the receiving plate portion having the combined insertion holes.

According to the above-mentioned proposed filler support, the size of the insertion hole is made different so that it can be applied to a long body (or a long body group) having different outer diameters. Only by preparing a plurality of types of receiving plate portions, the frame can be used in common and the economical efficiency can be improved. However, on the other hand, when installing the proposed filler support device, for example, in the case of installing in the through hole of the fireproof penetration part for inserting a refrigerant pipe or cable having a flammable coating layer on the outer peripheral part, the following: Such problems are raised. By the way, in the fireproof penetrating portion, a flame-retardant thermal expansion putty is used as a filling material so that even if a fire occurs, the filling material expands due to the heat and a gap does not occur around the elongated body. Often there are ways to prevent the passage of smoke and flames. That is, according to the proposed filler support, when the receiving plate portion is deformed outward in the thickness direction due to the thermal expansion of the filler, the overlap with the frame is small,
There is a high risk that the receiving plate part will fall off the frame and reduce the fire protection performance of the through hole, and in order to prevent this, it is necessary to secure a large overlap between the frame and the receiving plate part.
As a result, there is a problem in that the setting of the maximum size of the insertion hole formed in the receiving plate section is greatly restricted, and only a small-diameter long body (or a long body group) can be inserted.

Therefore, an object of the present invention is to solve the above-mentioned problems and, while ensuring good economy and fireproof performance, for a long body (or a long body group) to be inserted into the through hole,
An object of the present invention is to provide a filler supporter for through holes which can be used in a wide range of outer diameters from small to large.

[0007]

To achieve this object, the feature of the through hole filling material support of the present invention is that the through hole provided in the structure is on the front side in the filling direction of the filling material. A supporting plate capable of receiving the filling material filled in the through hole, a locking part capable of locking the structure, and a receiving part for receiving the supporting plate. And a movement prevention means for preventing the support plate from moving radially inward of the through hole with respect to the receiving portion, between the receiving portion and the support plate. There is a place.

The movement preventing means is preferably an engaging portion between the receiving portion and the support plate.

Further, it is preferable that the frame is divided and formed in the radial direction of the through hole, and the support plate is divided and formed in the radial direction of the through hole.

[0010]

According to the characteristic configuration of the filling material supporter for a through hole according to the present invention, the filling material is filled in the through hole on the front side in the filling direction of the filling material into the through hole provided in the structure. A support plate that can receive materials is provided, and a frame that includes a locking portion that can be locked to the structure and a receiving portion that receives the support plate is provided. The frame can be used as it is by simply providing a plurality of types of support plates in which the size of the insertion portion corresponding to the outer diameter of the scale is set. Therefore, it is not necessary to form a plurality of types with various dimensional settings, and it is possible to improve economic efficiency.

Further, a movement preventing means for preventing the support plate from moving radially inward of the through hole with respect to the receiving portion is provided between the receiving portion and the support plate. Therefore, for example, even if a force in the thickness direction acts on the support plate, it is possible to prevent the support plate from falling off the frame by the movement preventing means, and it is possible to overlap the receiving portion and the support plate. Even if it is made small, it can be made difficult to fall off.

If the movement preventing means is an engaging portion between the receiving portion and the support plate, a more reliable state can be obtained by only engaging the support plate with the frame. Since it is possible to attach it, it is possible to improve the efficiency of the work of forming the through portion.

Further, if the frame is divided and formed in the radial direction of the through hole, the frame can be divided into a compact size when installed in the through hole,
It is easy to handle and can be installed efficiently.Even after the long body is installed in the through hole, it is possible to easily install the frame, which improves the efficiency of the installation work of the frame and the flexibility of the installation time. The property is improved.

Further, if the support plate is divided and formed in the radial direction of the through hole, the support plate can be divided into a compact size at the time of installation in the through hole, like the frame described above. Therefore, it is easy to handle and can be efficiently installed, and the support plate can be easily installed even after the long body is installed in the through hole.

[0015]

Therefore, according to the through hole filling material support of the present invention, it is only necessary to prepare a plurality of types of support plates having different size settings of the insertion portion, and thus the elongated body having different outer dimensions. Since it is no longer necessary to form a plurality of types of the entire filler support with various dimensional settings as in the conventional case, it is possible to reduce the overlap between the receiving portion and the support plate. As a result, it becomes possible to adapt to a long body having a larger diameter, and it becomes possible to improve economical efficiency and versatility while ensuring good fire prevention performance.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 2, the air-conditioning pipe P (an example of a long body) is inserted into the through hole 2 for inserting a pipe provided in the slab 1 (an example of the structure), and the peripheral wall portion 2a of the through hole 2 is inserted. And the air-conditioning pipe P is filled with a filler J to form a fire penetration portion, and the filler J corresponds to the “filler support for a through hole” of the present invention. Filler support S as an example
Is supported in the through hole 2.

The air-conditioning pipe P comprises a refrigerant pipe 3 formed by covering a pipe body 3a made of a copper pipe with a foamed resin heat insulating member 3b, and a cable 4.

Further, the filling material J can prevent fire from burning to the other side of the upper and lower spaces through the through holes 2 when a fire occurs in one of the upper and lower spaces partitioned by the slab 1. In order to form the penetrating portion, the putty J1 having a thermal expansion property is used. According to the putty J1, the putty J1 itself expands due to the heat of the fire,
Even if the air-conditioning pipe P burns or contracts, it is possible to spread around the air-conditioning pipe P to fill the gap and make it difficult for smoke or flame to pass through the through hole 2.

The filling material support S will be described below.
A frame F that fits into the through hole 2 and can be locked, a through hole lid member (hereinafter simply referred to as a lid member) C that can be attached to the frame F, and the filling in a state of being engaged with the frame F. A support plate H that can freely receive the material J is provided.

The frame F is a front side (that is, a lower side) in the filling direction of the filling material J into the through hole 2, that is, a receiving portion 5 capable of receiving the support plate H, and the receiving portion. 5, the slab 1 and a locking portion 6 which can be locked are integrally joined.

Specifically, as shown in FIG. 1, the receiving portion 5 is composed of an annular sheet metal member 7. This sheet metal member 7 is a first sheet metal member 7a that is formed in two in the radial direction.
And a second sheet metal member 7b. As shown in the drawing, the sheet metal members 7a and 7b are provided with a fitting structure at their connecting portions, and can be integrally connected by fitting each other along the radial direction. .

As shown in the figure, the locking portion 6 is composed of a plurality of band members 10. The band member 10 has its lower end joined to the sheet metal member 7, and has its upper end bent outward so that it can be locked to the peripheral edge of the through hole 2. In addition, each band member 10
A bent vertical wall portion 11 into which the lid member C can be fitted inside is provided at an upper end portion of the lid member C. The bent vertical wall portion 11 is attached to the lid member C as the lid member C is fitted inside. The engaging cut-and-raised parts 13 are elastically deformed and provided with locking holes 11a for overcoming and locking. Further, a cover portion 12 is provided outside the bent vertical wall portion 11 in a bent manner so as to prevent the engaging portion from being exposed when the lid member C is engaged with the locking hole 11a. .

As shown in the figure, the lid member C is formed in a shape like a bottomless bowl, and in a state of being engaged with the frame F, the slab 1 and the through hole 2 are formed. It is formed with dimensions so that it can close the gap with the bundle of air-conditioning pipes P inserted through. Further, similar to the frame F, it is formed into two halves in the radial direction, and each of the divided members is provided with an engaging convex portion 8 and an engaging sheath portion 9 separately. By inserting them into the portion 9 and folding them back, they are engaged with each other, and the lid member C can be integrated. A plurality of engaging cut-and-raised portions 13 are provided at the edge of the lid member C so that they can be engaged with the locking holes 11a when they are fitted in the bent vertical wall portion 11 of the frame F. is there. Even if the putty J1 filled in the through hole 2 expands, the engagement structure of the locking hole 11a and the cut-and-raised portion 13 makes it difficult for the frame F and the lid member C to come off due to the force thereof. It is formed so that. Further, on the inner peripheral surface of the lid member C, an inclined surface portion M is formed which is further away from the frame F as it gets closer to the insertion portion of the air conditioning pipe P in the state where the lid member C is engaged with the frame F. When the putty J1 filled in the space expands, the putty J1 is brought into contact with the inclined surface portion M and is easily guided to the lower inclined side. Therefore, if
Even if there is a gap in the contact portion between the air conditioning pipe P and the lid member C, the putty J1 is tightened in the gap, so that it is possible to make it difficult for the putty to leak to the outside.

As shown in FIG. 3, the support plate H is made of a metal plate and formed in an annular shape.
It is composed of the second support plates H1 and H2. Support plate H
Has an inner diameter set to be approximately equal to the maximum outer diameter of the air conditioning pipe P to be inserted, and is formed so that a large gap is not formed between the air conditioning pipe P and the support plate H. (When the outer diameter of the air conditioning pipe P is different, another support plate H formed to have an inner diameter matching the value is used.) The outer diameter is the inner side of each band member 10 of the frame F. It is dimensioned so that it fits snugly in. On the outer peripheral portion of the support plate H, a plurality of engaging portions 14 which are engageable with the strip member 10 in the engagement direction along the circumferential direction are provided at positions corresponding to the strip member 10. It is provided separately. As shown in the drawing, the engaging portion 14 is formed in an “L” shape in a plan view, and when the engaging member 14 is engaged with the band member 10, the supporting plate H is attached to the receiving portion 5. On the other hand, it is configured so as to be prevented from moving radially inward of the through hole 2. That is, the engagement portion 14 constitutes the movement preventing means U according to the present invention.

In the method of forming a fireproof penetration portion using the filler support S of this embodiment, the frame F is installed in the through hole 2 in a locked state, and the air conditioning pipe P is inserted (the air conditioning pipe P first). Alternatively, the support plate H may be placed on the receiving portion 5 and the engaging portion 14 may be engaged with the band member 10 and the putty J1 may be filled from above the lid member C. Can be easily implemented by engaging the frame with the frame.

According to the filling material support S, the frame F can be used commonly by simply selecting the support plate H that fits the outer diameter of the air-conditioning pipe P to be inserted, and at the same time, around the insertion part of the air-conditioning pipe P. Since it is possible to configure the fireproof penetration portion in a state where it is difficult to form a gap, and the movement preventing means U is provided, even if there is little overlap between the receiving portion 5 and the support plate H, it is careless. Even if the expansion force of the putty J1 acts on the support plate H, it is possible to prevent the slippage from deviating from the receiving portion 5 by preventing the displacement in the thickness direction even if the expansion force of the putty J1 is applied. Support can be granted. Since the overlapping margin can be reduced, the maximum value of the inner diameter of the support plate H can be increased to accommodate the case where the large-diameter air conditioning pipe P is inserted.

[Other Embodiment] Another embodiment will be described below.

<1> The frame F is not limited to the one in which the receiving portion 5 and the locking portion 6 are integrally formed as described in the previous embodiment. The part 5 and the locking part 6 may be configured by separate members that are detachable. Further, the structure is not limited to being formed in two in the radial direction, and may be, for example, a structure in which the structure is divided into three or more parts, or may be integrally formed without being divided.

<2> The filling material J is not limited to the putty J1 described in the previous embodiment, and for example, as shown in FIG. 4, a sheet putty J2 in which the putty J1 is formed into a sheet is used together. According to the sheet putty J2,
It is possible to save the trouble of packing the putty J1 inside the filling space.

<3> Further, the structure is not limited to the slab described in the above embodiment, and may be a wall as shown in FIG. The filler support S can be installed in each of the two openings. The slabs, walls, ceilings, beams, columns, etc. are collectively called structures.

<4> The elongated body is not limited to the air conditioning pipe P described in the previous embodiment, and may be, for example, a cable, a steel pipe, a resin pipe, or the like, which are generically referred to. It is called a long body.

<5> The movement preventing means U is not limited to the one constituted by the engaging portion 14 described in the previous embodiment, and for example, as shown in FIG. Protrusions 5a are provided on the surface, and the concave portion 15 corresponding to the protrusions 5a
May be provided in the mounting portion of the support plate H, and the movement of the support plate H may be prevented by the engagement of the projection 5a and the recess 15. Besides, it is also possible to provide a known means for preventing the movement of the support plate H with respect to the receiving portion 5.

It should be noted that reference numerals are added to 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]

FIG. 1 is an exploded perspective view showing a filler support according to an embodiment.

FIG. 2 is a cross-sectional view showing the installation situation of the filler support according to the embodiment.

FIG. 3 is a top view cross-sectional view showing a locking state of the support plate of the embodiment.

FIG. 4 is a cross-sectional view of a fire penetration part showing a filler according to another embodiment.

FIG. 5 is a cross-sectional view of a fire penetration part according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 structure 2 through hole 5 receiving part 6 engaging part 14 engaging part F frame J filling material H support plate P long body U movement blocking means

Claims (4)

[Claims] 1. A through hole (2) provided in a structure (1).
A filling material support tool for a through hole capable of supporting a filling material (J) in the space around the insertion portion of the elongated body (P) inserted into the through hole (2). A support plate (H) capable of receiving the filling material (J) filled in the through hole (2) is provided on the front side in the filling direction of J), and can be locked to the structure body (1). A frame (F) is provided that includes a locking portion (6) and a receiving portion (5) for receiving the support plate (H), and the receiving portion (5) and the support plate (H) are provided. ), A movement preventing means (U) for preventing the support plate (H) from moving radially inward of the through hole (2) with respect to the receiving portion (5). Filler support for through holes. 2. The through hole filling material support according to claim 1, wherein the movement preventing means (U) is an engaging portion (14) between the receiving portion (5) and the support plate (H). Ingredient 3. The through hole filling material support device according to claim 1, wherein the frame (F) is divided and formed in a radial direction of the through hole (2). 4. The through hole filling material support device according to claim 1, wherein the support plate (H) is formed in a radial direction of the through hole (2).