JP3266745B2 - Filler support for through hole - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, as a filler support for such a through hole, a receiving plate portion for receiving the filler to be filled in the through hole is provided at a front side in a filling direction of the filler into the through hole. And a frame in which the receiving plate portion is integrally provided with a locking portion that can be locked to a structure. The locking portion connects the frame and the receiving plate portion to the structure. Stop, the elongated body is inserted into the insertion hole formed in the center portion of the receiving plate portion, and a filler is packed between the elongated body and the through hole wall and supported by the receiving plate portion. there were.

[0003]

According to the above-described conventional filler support for a through-hole, the receiving plate and the engaging portion are integrally formed. If the outer diameter of the elongated body (or group of elongated bodies) to be inserted is significantly smaller than the size of the hole, the filler tends to fall off from a gap between the elongated body and the sealing property of the through hole. There is a risk of getting worse. Therefore, in order to maintain the hermeticity of the through-hole, it is necessary to prepare a plurality of types of filler supports having different sizes of the through-holes, which is disadvantageous in that it is uneconomical.

In order to solve this drawback, a frame and a receiving plate are formed separately, and the outer diameter of a long body (or a group of long bodies) to be inserted into the bottom of the frame is adjusted. A device in which a receiving plate portion having a combined insertion hole is mounted is proposed.

According to the above-described filler support, the size of the insertion hole is made different so as to be able to cope with a long body (or a group of long bodies) of different outer diameters. By simply preparing a plurality of types of receiving plate portions, the frame can be shared, and the economic efficiency can be improved. However, on the other hand, when the proposed filler support is installed in a through hole of a fire prevention penetration part through which, for example, a refrigerant pipe or a cable provided with a flammable coating layer on the outer periphery is inserted, the following is required. Such problems are raised. Incidentally, in the fire prevention penetration portion, a flame-retardant thermally expandable putty is used as a filler, so that even if a fire occurs, the heat expands the filler so that no gap is generated around the elongated body. Often, there is a way to prevent the smoke and flames from getting through. 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, when the overlap with the frame is small,
There is a high risk that the receiving plate will fall off the frame and lower the fire prevention performance of the through hole. To prevent this, it is necessary to ensure a large overlap between the frame and the receiving plate.
As a result, there is a problem in that the setting of the maximum dimension of the insertion hole formed in the receiving plate portion is greatly restricted, and it is difficult to insert only a small-diameter long body (or a long body group).

Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide a long body (or a group of long bodies) to be inserted into the through-hole while ensuring good economy and fire prevention performance.
It is an object of the present invention to provide a filler support for a through-hole which can be widely used from a large outer diameter to a small outer diameter.

[0007]

In order to achieve the above object, a characteristic feature of a filler support for a through-hole according to the present invention is that a filler is provided at a front side in a filling direction of the filler into a through-hole provided in a structure. A supporting plate capable of receiving the filler filled in the through hole, a locking portion capable of locking the structure, and a receiving portion for receiving the supporting plate. A movement preventing 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. Where it is.

It is preferable that the movement preventing means is an engaging portion between the receiving portion and the support plate.

It is preferable that the frame is formed so as to be divided in a radial direction of the through hole, and the support plate is formed so as to be divided in a radial direction of the through hole.

[0010]

According to the characteristic structure of the filler supporting member of the through hole according to the present invention, the filling member is filled in the through hole on the front side in the filling direction of the filler into the through hole provided in the structure. A support plate capable of receiving the material is provided, and a locking portion capable of locking the structure is provided, and a frame including a receiving portion for receiving the support plate is provided. Just by providing a plurality of types of support plates in which the dimensions of the insertion portion corresponding to the outer diameter of the scale are set, the frame can be used as it is, and as in the conventional case, the entire filler support is used. In addition, it is not necessary to form a plurality of types with various dimension settings, and it is possible to improve economic efficiency.

Further, between the receiving portion and the support plate, a movement preventing means is provided for preventing the support plate from moving radially inward of the through hole with respect to the receiving portion. 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 dropping off the frame by the movement preventing means, and to overlap the receiving portion and the support plate. Can be made hard to fall off even if the size is made smaller.

If the movement preventing means is an engaging portion between the receiving portion and the support plate, a more reliable state can be achieved by just engaging the support plate with the frame. It becomes possible to attach, and the efficiency of the penetrating part forming operation can be improved.

Further, if the frame is formed so as to be divided in the radial direction of the through hole, the frame can be divided and compact when installed in the through hole.
In addition to being easy to handle, the installation work can be performed efficiently, and even after the long body is installed in the through hole, the frame can be easily installed, so that the efficiency of the installation work of the frame and the flexibility of the installation work time are improved. The performance is improved.

Further, if the support plate is divided in the radial direction of the through hole, the support plate can be divided and compact when installed in the through hole as in the frame described above. Therefore, the installation work can be performed easily and efficiently, and the support plate can be easily installed even after the long body is installed in the through hole.

[0015]

Therefore, according to the filler support of the through hole of the present invention, a long body having different external dimensions can be prepared simply by preparing a plurality of types of support plates having different dimensions of the insertion portion. It is not necessary to form a plurality of types of filler fillers with various dimensions as in the related art, and 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 is possible to improve economic efficiency and versatility while ensuring good fire prevention performance.

[0016]

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

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

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

The filler J can prevent fire from spreading to the other side of the upper and lower spaces through the through holes 2 when, for example, a fire occurs in one of the upper and lower spaces separated by the slab 1. In order to constitute the penetrating part, it is composed of a putty J1 having thermal expansion properties. According to the putty J1, the putty J1 itself expands due to heat from the fire,
Even if the air-conditioning pipe P burns or shrinks, the air-conditioning pipe P spreads around the air-filling pipe and fills the gap, thereby making it difficult for smoke and flame to pass through the through-hole 2.

The filler support S will now be described.
A frame F that can be fitted and locked in the through-hole 2, 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 where the frame F is engaged. A support plate H capable of receiving the material J is provided.

The frame F has a receiving portion 5 capable of receiving the support plate H at a front side (ie, a lower side) in a direction of filling the filler J into the through hole 2, and a receiving portion. 5 is integrally formed with the slab 1 by integrally joining a locking portion 6 which can be locked.

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

As shown in the drawing, the locking portion 6 is composed of a plurality of band members 10. The band member 10 has a lower end portion joined to the sheet metal member 7 and an upper end portion bent outward so as to be engaged with a peripheral portion of the through hole 2. In addition, each band member 10
A bent vertical wall portion 11 in which the cover member C can be fitted inside is provided at an upper end portion of the cover member C. As the lid member C is fitted inside the bent vertical wall portion 11, Locking holes 11a are provided for locking the raised and raised portions 13 for engagement so that the engaging cut-and-raised portions 13 can ride over while elastically deforming. Further, a cover portion 12 for preventing the engagement portion from being exposed in a state where the lid member C is engaged with the locking hole 11a is bent and provided outside the bent vertical wall portion 11. .

As shown in the figure, the lid member C is formed in a shape like a bottomless bowl, and when it is engaged with the frame F, the slab 1 and the through-hole 2 are formed. The dimensions are set so that the gap with the bundle of the air-conditioning pipes P inserted through can be closed. Similarly to the frame F, it is formed into two parts in the radial direction, and each of the divided members is provided with an engaging projection 8 and an engaging sheath 9 separately. The two are engaged by inserting and folding back into the portion 9 to form an integral lid member C. The edge of the lid member C is provided with a plurality of engagement cut-and-raised portions 13 which are individually engageable with the respective locking holes 11a when being fitted inside the bent vertical wall portion 11 of the frame F. is there. The above-described engagement structure between the locking hole 11a and the cut-and-raised portion 13 makes it difficult for the frame F and the cover member C to come off by receiving the force even if the putty J1 filled in the through-hole 2 expands. It is formed so that it becomes. An inclined surface portion M is formed on the inner peripheral surface of the cover member C so as to be closer to the insertion portion of the air conditioning pipe P in a state where the cover member C is engaged with the frame F. When the putty J1 filled in the space expands, the putty J1 is easily guided toward the lower side while being in contact with the inclined surface portion M. 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 J1 to leak out.

As shown in FIG. 3, the support plate H is made of sheet metal and is formed in an annular shape.
It is constituted by the second support plates H1 and H2. Support plate H
Has an inner diameter set so as to be substantially equal to the maximum outer diameter of the air-conditioning pipe P to be inserted, and is formed such that a large gap is not formed between the air-conditioning pipe P and the support plate H. (If the outside diameter of the air-conditioning pipe P is different, another support plate H formed with an inside diameter corresponding to that value is used.) The outside diameter is the inside of each band member 10 of the frame F. The dimensions are set so that it fits perfectly. On the outer peripheral portion of the support plate H, a plurality of engaging portions 14 that can be engaged with the band member 10 in an engaging direction along the circumferential direction are provided at positions corresponding to the band member 10. It is provided separately. As shown in the figure, the engaging portion 14 has a planar shape formed into an “L” shape, and when engaged with the band member 10, the support plate H is attached to the receiving portion 5. On the other hand, it is configured such that it can 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 for forming a fire prevention 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 is inserted first). The support plate H is placed on the receiving portion 5 and the engaging portion 14 is engaged with the band member 10, and the putty J1 is filled from above and the lid member C is inserted. Can be easily implemented by engaging with the frame.

According to the filler supporting member S, the frame F can be used for the same purpose only by selecting a support plate H that matches the outer diameter of the air-conditioning pipe P to be inserted. The fire prevention penetration part can be configured in a state where a gap is difficult to be formed, and the provision of the movement prevention means U allows carelessly even if the overlap between the receiving part 5 and the support plate H is small. Even if the expansion force of the putty J1 acts on the support plate H, the deformation of the putty J1 in the thickness direction is suppressed, and it is possible to prevent the putty J1 from dropping off from the receiving portion 5, so that the more reliable filling material can be used. Support can be granted. Further, since the overlapping margin can be reduced, the maximum value of the inner diameter of the support plate H can be further increased, so that it is possible to adapt to a case where a large-diameter air conditioning pipe P is inserted.

[Another 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 engaging portion 6 described in the previous embodiment are integrally formed. The part 5 and the locking part 6 may be composed of separate detachable members. In addition, the present invention is not limited to the one formed in two parts in the radial direction, and may be, for example, a plurality of three or more divided parts or an integrally formed part without being divided.

<2> The filler J is not limited to the putty J1 described in the above embodiment. For example, as shown in FIG. 4, a sheet putty J2 in which the putty J1 is formed in a sheet shape is used in combination. According to the sheet putty J2,
It is possible to save the trouble of packing the putty J1 in the interior of the filling space.

<3> The structure is not limited to the slab described in the previous embodiment. For example, as shown in FIG. 4, a wall may be used. The filler support S can be installed in each of the two openings. The slabs, walls, ceilings, beams, columns, and the like are collectively referred to as structures.

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

<5> The movement preventing means U is not limited to the one configured by the engaging portion 14 described in the previous embodiment. For example, as shown in FIG. A projection 5a is provided on the surface, and a concave portion 15 corresponding to the projection 5a is provided.
May be provided on the mounting portion of the support plate H so that the movement of the support plate H can be prevented by the engagement between the projection 5a and the concave portion 15. In addition, 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.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

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

FIG. 2 is a cross-sectional view showing an installation state of a filler support of the embodiment.

FIG. 3 is a cross-sectional view as viewed from above showing the locking state of the support plate of the embodiment.

FIG. 4 is a cross-sectional view of a fire penetration portion 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 Reception part 6 Locking part 14 Engagement part F Frame J Filler H Support plate P Long body U Movement prevention means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-284112 (JP, A) JP-A-2-28261 (JP, U) JP-A-4-77081 (JP, U) JP-A-6-28 62728 (JP, U) Japanese Utility Model 60-79068 (JP, U) Japanese Utility Model 55-126081 (JP, U) Japanese Utility Model Utility Model 63-108939 (JP, U) (58) Field surveyed (Int. ⁷ , DB name) H02G 3/22

Claims (4)

(57) [Claims] 1. A through hole (2) provided in a structure (1).
A filler supporter for a through-hole capable of supporting a filler (J) in a space around an insertion portion of the elongated body (P) inserted into the through-hole (2), wherein the filler ( A support plate (H) capable of receiving the filler (J) to be 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 (1). A frame (F) including a locking portion (6) and a receiving portion (5) for receiving the support plate (H) is provided, and the receiving portion (5) and the support plate (H) are provided. ) Is provided between the receiving portion (5) and the receiving portion (5) to prevent the support plate (H) from moving radially inward of the through hole (2). Filler support for through hole. 2. The filler support of a through hole 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). Utensils. 3. The through hole filling material support according to claim 1, wherein the frame (F) is formed so as to be divided in a radial direction of the through hole (2). 4. A filler support for a through hole according to claim 1, wherein said support plate (H) is formed in a radial direction of said through hole (2).