JP2578894Y2 - Filler drop-off prevention tool - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention is intended to close a space between a covering long body such as an electric wire and an air-conditioning pipe inserted into a through hole provided in a structure and the through hole. The present invention relates to a filler falling prevention tool for preventing the filler from dropping out of the through hole when the filler is filled.

[0002]

2. Description of the Related Art Heretofore, this kind of filler falling prevention tool has been used for filling filler from one end of the through hole.
In some cases, a receiving plate for closing the opening at the other end of the through hole and receiving the filler is disposed along the structure, and the receiving plate is supported by a stick. Further, in a situation where the stick bar cannot be installed, the receiving plate is hit and fixed to the structure with a nail or the like.

[0003]

According to the above-mentioned conventional filler falling-off prevention device, it takes time and effort to install the receiving plate in the through-hole, and there is a risk of impairing the aesthetic appearance. As for the installation in the area where the surface is stuck, makeup must be applied in a post-process, and there is a disadvantage that work efficiency is poor.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a filler falling-off prevention device which can be easily installed in consideration of the above-mentioned drawbacks and which does not impair the aesthetic appearance of the installed portion.

[0005]

In order to achieve this object, the feature of the filler falling-off prevention device according to the present invention is that, in a through hole provided in the structure, a covering elongated body inserted through the through hole is provided. A cylindrical through sleeve that can be disposed with a first gap in between and a second gap with respect to the inner wall of the through hole is provided, and a male thread portion is formed along the outer peripheral surface of the through sleeve. A cover member that engages with the end of the penetrating sleeve in a state of being externally fitted to the coated elongate body and closes the opening of the end of the penetrating sleeve, and is internally screwable with the penetrating sleeve. A pair of collar-shaped sleeve fixing members provided with a contact portion capable of contacting an opening surface of the through-hole of the structure, and pressing against the filler for closing the second gap. The surfaces are provided separately on the two sleeve fixing members.

[0006]

According to the characteristic structure of the filler falling-off preventing device of the present invention, the covering elongated body can be externally fitted in the through-hole provided in the structure with a first gap provided between the covering elongated body and the through-hole. A tubular through sleeve that can be fitted inside the hole inner wall with a second gap therebetween is provided, and the through sleeve end is engaged with an end of the through sleeve that is fitted outside the coated elongated body. Since the lid member that closes the opening of the portion is provided, the filler filled between the penetrating sleeve installed in the through hole and the coated elongated body is reliably received in the through hole, and falls off. Can be prevented.

Further, a pair of flange-shaped sleeve fixing members provided with an internal thread portion which can be screwed to the penetrating sleeve on an inner peripheral surface and a contact portion capable of contacting a through hole opening surface of the structure. Since the members are provided, the two sleeve fixing members are simply screwed into the through-sleeve installed in the through-hole with the structure interposed therebetween, and can be easily performed without using a nail or a stick as in the related art. The penetrating sleeve can be attached to the structure, and the working efficiency can be improved. And
If the engagement position of the sleeve fixing member in the longitudinal direction of the penetrating sleeve is changed, it is possible to adjust the protrusion of the penetrating sleeve toward the surface of the structure, and it is possible to prevent the appearance from being impaired.

Further, since a through sleeve having a length larger than the thickness of the structure can be used, even when a filler falling prevention device is attached to a thin structure, for example, the through sleeve can be used. By increasing the length, the required filling length of the through hole on the fireproof structure can be appropriately secured.

On the other hand, since the pressing surfaces for the filler for closing the second gap are provided separately on the two sleeve fixing members, the pushing of the filler into the second gap is performed as follows.
The filler can be reliably and quickly pressed into the second gap by the pressing surface, and the filler pressed into the second gap is pressed by each pressing surface of the two sleeve fixing members. This makes it possible to seal the second gap in a more airtight state.

[0010]

Therefore, according to the filler falling-off preventing device of the present invention, it is possible to easily attach the filler to the through-hole, to more reliably seal the through-hole, and to keep the appearance of the installed portion intact. Therefore, it is possible to improve workability, airtightness, and aesthetics associated with the installation of the covering elongated body in the structure through-hole.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a state in which an example of a filler falling prevention device according to the present invention is installed in a through-hole of an air conditioning pipe (an example of a coated long body).

FIG. 1 shows an air-conditioning pipe 3 inserted through a through-hole 2 provided in a concrete wall 1 as an example of a structure, with a filler dropping-off preventing device A and a mortar M.
This figure shows a situation in which a heat-resistant fire-resistant putty 4 is fixed in the through hole 2 in a sealed state to form a fire-resistant structure.

The air-conditioning pipe 3 is composed of a pipe main body 3a formed of a copper pipe and a heat insulating member 3b formed of a foamed resin covering the pipe main body 3a.

1 and 2, the air-conditioning pipe 3 inserted into the through-hole 2 is provided with a first gap D in the through-hole 2. As shown in FIG. A cylindrical through sleeve 5 that can be externally fitted in a state, and that can be internally fitted in a state where a second gap N is left with respect to the through hole inner wall W.
(Having a male screw portion 5a formed on the outer peripheral surface), and screwed into an end of the through sleeve 5 externally fitted to the air conditioning pipe 3 to close both openings at the end of the through sleeve 5. And a female screw portion 7a (which can be screwed with the male screw portion 5a) which can be externally fitted and locked to the through sleeve 5 is provided on the inner peripheral surface, and the female screw portion 7a is inserted through the female screw portion 7a. A pair of flange-shaped sleeve fixing members 7 having a contact portion 7b capable of contacting the concrete wall 1 around the opening surface of the through hole 2 in a state of being screwed to the sleeve 5 is provided.

The through-sleeve 5 is formed of a cylindrical body whose outer diameter is slightly smaller than the inner diameter of the through-hole 2 and whose length is larger than the length of the through-hole 2.

The cover member 6 has a threaded portion 6a which can be screwed to the end of the through sleeve 5, and a receiving portion 6b which receives the refractory putty 4 filled in the first gap D in the through sleeve 5. The receiving portion 6b is provided with an insertion hole 6c through which the air conditioning pipe 3 can be inserted. Also,
As shown in the figure, the annular lid member 6 is divided into two along the circumferential direction, and each of the divided members is swingable via a hinge 6d provided between one end of each other. And a bolt fixing portion 6e which is fixed to the other end of each other with a bolt B in a state where the other ends are in contact with each other.

As described above, the sleeve fixing member 7 is composed of a female screw portion 7a which can be screwed to the male screw portion 5a of the penetrating sleeve 5 and a contact portion 7b which can contact the concrete wall 1. I have. The contact portion 7b includes a flange portion 8
And an annular contact portion 9 which can contact the concrete wall 1.
Are formed. Further, a flange-shaped pressing surface 10 extending from the female screw portion 7a to the inner wall W of the through hole is provided on the entire end of the female screw portion 7a on the opposite side to the contact portion 7b. The mortar M can be pressed into the second gap N by the pressing surface 10 by screwing the sleeve fixing member 7 in an externally fitted state into the sleeve 5 into the through hole 2. By screwing the mortar M between the opposing pressing surface 10 of the other sleeve fixing member 7 and the mortar M, the mortar M can be spread to all corners of the second gap N. , It is possible to further increase the degree of sealing. The pressing surface 10 is provided with a plurality of through holes 10a,
With this through hole 10a, it is possible to release the excess pressure of the mortar M sandwiched between the pressing surfaces 10 of the two sleeve fixing members 7 which are opposed to each other in the through hole 2.

The above-described penetrating sleeve 5, lid member 6,
The sleeve fixing member 7 is formed of a metal, and maintains the hermetically sealed state of the through hole 2 together with the refractory putty 4 and mortar M even when a fire occurs, so that the flame or smoke passing through the through hole 2 can be maintained. Distribution can be prevented.

According to the filler A of this embodiment,
When attaching the filler falling-off prevention tool A to the through hole 2, the two sleeve fixing members 7 are screwed into the through sleeve 5 disposed in the through hole 2, and the concrete wall 1 can be easily attached by simply sandwiching the concrete wall 1. Moreover, in order to fill the second gap N between the inner wall W of the through hole and the through sleeve 5 with the mortar M (it is also possible to use a refractory putty), the mortar M is formed by the pressing surface 10 only by screwing the sleeve fixing member 7. Is pressed into the second gap N, and can be easily filled even if the gap has a fine width. By pressing the mortar M between the pressing surfaces 10 of the sleeve fixing members 7, the airtightness is improved. The second gap N can be filled.
In addition, the cover member 6 is installed on the penetration sleeve 5 so that
By simply filling the first gap D, the air-conditioning pipe 3 can be easily fixed to the through-hole 2. For example, even if a fire occurs and the heat insulating member 3b of the air-conditioning pipe 3 burns, that part is not heated. The expanded refractory putty 4 fills up, and it is possible to maintain a state in which a gap through which a flame or smoke passes does not occur in the through hole 2. Further, since the thermal expansion effect of the refractory putty 4 in the longitudinal direction of the air-conditioning pipe 3 can be prevented by the lid member 6, most of the thermal expansion of the refractory putty 4 is reduced to the inner side (piping) along the radial direction of the air-conditioning pipe 3. It is possible to act on the body 3a).

[Another Embodiment] Another embodiment will be described below.

<1> The structure 1 is not limited to the concrete wall described in the previous embodiment, but may be formed of other materials, slabs, beams, columns, and the like. It may have a hollow structure. These are collectively called structures. In addition, the coated elongated body is not limited to the air-conditioning pipe described in the previous embodiment, and may be, for example, an electric wire or a hot water supply pipe, and is collectively referred to as a coated elongated body. .

<2> The filler falling-off prevention tool A is not limited to the metal described in the above embodiment.
It may be formed of resin or ceramics. The filler C may be any of refractory putty 4 and mortar M, and may be various adhesives, rock wool, general putty, or the like.

<3> The shape of the insertion hole 6c of the cover member 6 through which the coated elongated body 3 can be freely inserted is not limited to the circular shape described in the previous embodiment. May be formed in a shape corresponding to the cross-sectional shape of the coated elongated body 3, thereby reducing the gap between the coated elongated body 3 and the airtightness of the second space D. do it,
It becomes possible to cause the thermal expansion of the refractory putty 4 to act around the pipe main body 3a.

<4> The pressing surface 10 is not limited to being integrally formed with the sleeve fixing member 7. For example, as shown in FIG. After the two sleeve fixing members 7 are attached to the penetrating sleeve 5 of the through hole 2, the pressing member can be pressed against the filler C filled in the second gap N. May be
Further, as shown in FIG. 4, a configuration in which a spring member 12 which can be pressed is provided may be employed.

In the claims of the utility model registration, reference numerals are written for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a state in which a heat insulating material fall prevention device is attached to a structure.

FIG. 2 is an exploded perspective view showing a heat insulating material falling prevention device.

FIG. 3 is a cross-sectional view illustrating a pressing surface according to another embodiment.

FIG. 4 is a cross-sectional view illustrating a pressing surface according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Structure 2 Through-hole 3 Coated long body 5 Penetration sleeve 5a Male screw part 6 Cover member 7 Sleeve fixing member 7a Female screw part 7b Contact part 10 Pressing surface C Filler D First gap N Second gap W Through-hole inner wall

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-241352 (JP, A) JP-A-6-235482 (JP, A) JP-A-4-151086 (JP, A) JP-A-61- 127991 (JP, A) Fully open sho 56-7174 (JP, U) Really open sho 50-21099 (JP, U) Fully open 4-15952 (JP, U) Fully open sho 57-139356 (JP, U) (58) Field surveyed (Int.Cl. ⁶ , DB name) F16L 5/02 A62C 3/16 F16L 5/04 H02G 3/22

Claims (1)

(57) [Scope of request for utility model registration] 1. A space between a coated elongated body (3) inserted into a through hole (2) provided in a structure (1) and the through hole (2) for closing the space. A filler falling prevention tool for preventing the filler (C) from falling off from the through-hole (2) in a state where the filler (C) is filled, and In the state where the first gap (D) is opened with respect to the coated elongated body (3), the inner wall (W) of the through hole
A cylindrical through-sleeve (5) which can be arranged with a second gap (N) therebetween, and the through-sleeve (5)
A male screw portion (5a) is formed along the outer peripheral surface of the through sleeve (5), and the male screw portion (5a) is engaged with an end of the through sleeve (5) in a state of being externally fitted to the long coated body (3). A cover member (6) for closing the opening at the end is provided, a female screw portion (7a) which can be screwed to the through sleeve (5) is provided on the inner peripheral surface, and a through hole opening of the structure (1) is provided. Contact part (7b) that can contact the surface
A pair of flange-shaped sleeve fixing members (7) provided with a pressing surface (10) against the filler (C) for the second gap (N) are separately provided on the both sleeve fixing members (7). Preventing filler from falling off.