JP3305672B2 - Closure support - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a structure (for example,
(A floor, wall, ceiling, etc.) in order to prevent the burning of the compartments on both sides of the through-hole for long body insertion, so that a blocking material made of a refractory material having a thermal expansion property can be supported in the through-hole. For the material support, more specifically, in the through hole,
The present invention relates to an obstruction member support that can freely support the obstruction material loaded in a space around an insertion portion of a long body (for example, an air conditioning pipe, a plumbing pipe, an electric wire, or the like).

[0002]

2. Description of the Related Art A preferable fire-resistant penetration portion for preventing the spread of fire is capable of preventing the flow of hot air, flame or smoke directly through the through-hole, and maintaining a temperature difference between the front and back of the through-hole. It is easy. Conventionally, as shown in FIG. 9, this type of closing member support includes a support portion 7 capable of receiving the closing member 1 loaded in the through hole H at the front side in the loading direction thereof, It is constituted by a metal support body G having a locking portion 9 that can be locked around the opening 8 of the hole H and a connecting portion 10 that integrally connects the supporting portion 7 and the locking portion 9. When a fire occurs on the side of the opening 8, the closing material 1 supported on the support portion 7 expands by receiving heat from the fire, and on the one hand, on the peripheral wall of the through hole, and on the other hand, Strongly close to the long body that has been inserted, even if the long body is burned out, the closing material fills the through hole to maintain the closed state of the through hole, thereby preventing the spread of fire. It is.

[0003]

In the event of a fire, it is desired that the plugging material expands quickly so that no gap is formed in the through hole. In this sense, when looking at the conventional blocking material support, considering that the support body is formed of metal, generally, metal has better heat conductivity than the blocking material, Thus, it can be seen that the heat of the fire is also transmitted from the support body, which contributes to accelerating the thermal expansion of the plugging material. However, according to the conventional plugging member support, there is no special configuration for positively transmitting heat at the time of fire, particularly to the plugging member. Therefore, considering that the heat conductivity to the plugging material is further improved, as shown in FIG. 10, the contact area with the plugging material 1 is increased by increasing the area of the connecting portion 10 by making the connecting portion 10 into a cylindrical shape. It is conceivable that more heat from the material support is transmitted to the closing material. In this case, since the connecting portion 10 is interposed between the closing member 1 and the peripheral wall of the through hole H, the close contact between the closing member 1 and the peripheral wall of the through hole H is hindered. There is a problem that it is inferior. Further, there is a problem that heat from the opening 8 side causes a rise in the temperature of the space opposite to the opening 8 via the connecting portion 10 and the supporting portion 7.

Accordingly, an object of the present invention is to solve the above-mentioned problems and to more quickly increase the thermal expansion of the plugging material while maintaining the plugging performance of the through-hole in the event of a fire and the heat blocking performance to the back side of the through-hole. To provide an obturator support that can be raised.

[0005]

SUMMARY OF THE INVENTION The feature of the present invention is that
It is possible to support the plugging material loaded in the through hole for insertion of the shank
Lockable around metal support and around the opening of the through hole
A metal locking portion, provided on the support body,
In the through hole, it is loaded into the space around the insertion part of the long body
Capable of supporting plugging material made of refractory material with thermal expansion
The heat from the opening is configured to be in the loading range of the closing material.
To facilitate transmission to the intermediate portion of the through hole in the axial direction.
Heat transfer promoting means, wherein the heat transfer promoting means is
The loading range is divided into a plurality in the circumferential direction with respect to the axis,
Is it a metal partition that covers almost the entire width along the axis direction?
It is where it is composed from.

[0006] According to the above-mentioned characteristic configuration, the closing member is connected to the
Can be received by the support in the through hole
In addition, the support body having the support portion is provided with the locking portion.
Installed in a state that locks over a wide area around the through hole
It is possible to do. Therefore, the weight of the closing material,
Weight of the elongated body transmitted through the blocking material and external force on the elongated body
To the structure over a wide area by the locking part,
To secure the plugging material in the through hole
It becomes possible. And the support tool main body is made of metal.
Wide area of the latch around the opening during a fire
Heat receiving portion, and can transfer heat to the closing member.
You. Further, the heat transfer promoting means allows the intermediate of the plugging material.
To the fire by transferring fire heat more efficiently
Capable of quickly causing thermal expansion of plugging material at the beginning of disaster
Becomes The heat transfer by the heat transfer promoting means is closed.
Since the middle part of the plugging material is mainly used, a large amount of heat is generated behind the through hole.
The sealing material is thermally expanded in a concentrated manner without leakage.
It becomes possible. As a result, the link connecting the support portion and the locking portion is formed.
Since the connection does not need to be cylindrical as described above,
Can be supported in a state where the blocking material directly contacts the hole peripheral wall,
It is also possible to maintain good hole closing performance. Ma
Further, the heat transfer means comprises a metal partition wall,
In the axial direction of the through hole in the material loading range
A plurality of loading ranges are specified in the circumferential direction with respect to the axial center direction.
Cut and cover almost the entire width along the axis direction.
It is provided. Therefore, the metal partition is attached to the closing member.
The heat is intensively transferred from the plate and promotes thermal expansion.
It becomes possible. Further, the space for accommodating the closing material is
Since it can be divided into multiple parts by the partition plate,
When loading, it can be loaded in a less biased state
No obstruction material is inserted over the entire circumference of the inserted long body.
Even thermal expansion ensures more reliable clogging of through holes in case of fire
It becomes possible. In addition, as a blocking material,
When using a general-purpose product molded into a plate shape,
While deforming elastically into a curved state,
Just by inserting it, the return force of the closing
In a state where the end face of the closing material is pressed against the partition plate.
No need to perform special fixing work
Can be efficiently carried out.

As a result, both the closing performance and the heat blocking performance are excellent.
It is possible to form a fire-resistant through-hole that is formed.

[0008] As described above, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the accompanying drawings.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, portions denoted by the same reference numerals as those of the conventional example indicate the same or corresponding portions.

This embodiment is an embodiment of the obstruction member support of the present invention, and as shown in FIG. 2, a through hole for inserting a drain pipe of a slab (an example of a structure) S (a through hole for inserting a long body). An example of a hole) An obstruction material support capable of supporting a heat-expandable refractory putty (an example of an obstruction material) 1 to be loaded in a surrounding space V of a portion where a drain pipe (an example of a long body) P is inserted in H. An example in which the tool 2 is installed in the through hole H and the fireproof penetration part 3 is formed will be described.

The slab S is made of reinforced concrete, and a floor plate 4 is installed above the slab S at intervals as shown in FIG. And the floor board 4
In the underfloor space 5 between the slab S and the slab S, the first drain pipe P1 from a drainage device (for example, a wash basin or a sink) 6 installed on the floor plate 4 is arranged so as to have a necessary gradient as a drain pipe. I have. The first drain pipe P1 is connected to a second drain pipe P2 vertically penetrating through the through hole H of the slab S via a branch joint P3. Accordingly, in the through hole H, a part of the branch joint P3 and the second drain pipe P2
Part of is located. Further, the lower surface of the outer peripheral surface of the branch joint P3 on the first drain pipe P1 side is arranged in a state of contacting the upper surface of the slab S. Therefore, the underfloor space 5
Is set to be a minimum value in a range where a minimum gradient necessary for the function as the first drain pipe P1 can be secured. Incidentally, the first drain pipe P1, the second drain pipe P2, and the branch joint P3 are referred to as the drain pipe P.
In addition, since each drain pipe P uses a pipe made of vinyl chloride, if a fire occurs on any of the upper and lower floors sandwiching the slab, there is a concern that the fire from the burn hole of the pipe may spread. In order to prevent this, the surrounding space V is filled with a refractory putty 1 having a thermal expansion property. That is, when the refractory putty 1 expands due to the heat of the fire, the burn hole of the pipe is closed to prevent the spread of fire.

The closing member support 2 will be described. As shown in FIG. 2 to FIG.
A support portion 7 capable of receiving the refractory putty 1 loaded therein in a front side in the loading direction, a locking portion 9 capable of locking around an opening 8 of the through hole H, and a support portion 7. And a connecting portion 10 for integrally connecting the locking portion 9 with the supporting portion 9. The support portion 7 is formed of a plate-like member so as to be located between the inner peripheral wall of the through hole H and the outer periphery of the drain pipe P in a state where the support portion 7 is disposed in the through hole H. It is formed in an arc plate shape along the peripheral wall of the through hole.
The connecting portion 10 is formed in a curved shape along the peripheral wall of the through hole H, and is provided with a plurality of windows 10a. The window portion 10a can improve the hermeticity of the through hole H by directly contacting the through hole H peripheral wall through the window portion 10a when the refractory putty 1 arranged in the surrounding space V thermally expands. It is provided. The support portion 7 is integrally provided at the lower end of the connecting portion 10, and the locking portion 9 is integrally provided at the upper end of the connecting portion 10. The locking part 9
Is formed in a flange shape along the peripheral edge of the opening 8 and in a C-shape in which a part of an annular shape along the periphery of the opening 8 is cut out.

As shown in FIGS. 3 and 4, the support body G includes two first bodies G1 and a second body G2 which are relatively slidably fitted around the longitudinal axis of the support body G. The first main body G1 and the second main body G2 are provided with the support part 7, the locking part 9, and the connecting part 10, respectively. Then, the second main body G2 is assembled so as to overlap the first main body G1.

The first main body G1 is formed by
The first support portion 7A set in a range of about 180 degrees around the vertical axis of the support body G, and the first support portion 7A of the locking portion 9 set in a range of about 140 degrees around the vertical axis. One lock 9A
And a first connecting portion 10A connecting them. Further, the first support portion 7A is provided with a first connecting portion 10A.
A, a short support portion 7Aa set in a range of about 50 degrees around the vertical axis center by a partitioning surface portion (corresponding to a partition plate) 11 protruding toward the vertical axis side from A, and about 13 degrees around the vertical axis center.
It is partitioned into a long support portion 7Ab set in a range of 0 degrees. As described above, the first connecting portion 10A is formed on the partition surface portion 11 by bending inward the upper and lower middle portions at the left and right end portions of the portion corresponding to the short support portion 7Aa,
The lower end of the partition surface 11 is formed in a non-contact state (with a gap) with the first support 7A. The first locking portion 9A has an outer peripheral edge bent downward, and the lower end of the bent portion 9a contacts the upper surface of the slab S in a state where the closing member support 2 is installed in the through hole H. It locks by hitting. Further, a screw 12 having an enlarged diameter head is attached to an intermediate portion in the longitudinal direction of the first locking portion 9A. The screw 12 includes the first main body G1 and the second main body G.
2 and the first main body G1.
And an operation for defining a starting point and an ending point of a relative sliding position between the first and second main bodies G2. Also, the first locking portion 9A
In the middle part in the longitudinal direction, a screw insertion hole 13 for fixing the closing member support 2 to a slab is formed at an interval from the boss 12, and the first main body G1 and the second The screw can be fixed to the slab using the screw insertion hole 13 with the main body G2 relatively slid in the extension direction.

[0015] The second main body G2 includes
The second support portion 7B set in a range of about 130 degrees around the vertical axis of the support body G, and the second support portion 7B of the locking portion 9 set in a range of about 190 degrees around the vertical axis. Double locking part 9B
And a second connecting portion 10B for connecting them. In addition, the second support portion 7B is connected to the second connecting portion 10.
B are formed on a single supporting portion by partitioning surface portions (corresponding to partitioning plates) 14 projecting from the left and right ends to the longitudinal axis side. The second connecting portion 10B is, as described above,
The upper and lower middle portions at both left and right end portions of the second support portion 7B are bent inward to form the partition surface portion 14, and the lower end portion of the partition surface portion 14 is in a non-contact state with the second support portion 7B ( (So that there is a gap). Like the first locking portion 9B, the second locking portion 9B is provided with a bent portion 9b by bending an outer peripheral edge portion downward.
In the state of being superimposed on B, the first locking portion 9B has the same height as the lower end of the bent portion 9a, and is configured to be able to contact and lock the upper surface of the slab S. Also, the first locking portion 9
A has a slit 15 formed in the longitudinal direction, and a screw portion of the screw 12 of the first locking portion 9A is provided so as to pass through the slit 15. Therefore, the bent portions 9a and 9b of the locking portions 9A and 9B come into contact with each other to serve as slide guides for each other, and because the screws 12 penetrate into the slits 15, they slide with each other. Became a first body G
It is possible to relatively slide the first and second main bodies G2 within a predetermined range along the longitudinal direction. A slide mechanism L is constituted by the bent portions 9a and 9b, and the slit 15 and the screw 12. In addition, since the said closure support is installed in a fireproof penetration part, it is formed of metal so that it may not be burned.

The refractory putty 1 arranged in the surrounding space V will be described. As described above, the refractory putty 1 is composed of a refractory substance (main component is an inorganic filler / expanding agent), and has a property of expanding to about 3 to 4 times the volume when heated. Even if the drainage pipe P disappears, there is an effect that the drainage pipe P is closed by filling the inside of the through hole H. In the present embodiment, a sheet-shaped member having a thickness substantially equal to the width of the support portion 7 is used. The refractory putty 1 has a shape corresponding to each supporting portion, and is provided with the first refractory putty 1A provided in a state of being fitted into the short supporting portion 7Aa of the first supporting portion 7A. A second refractory putty 1B provided in a state of being fitted into the support portion 7B, and an inserted refractory putty inserted into the putty accommodating space on the long support portion 7Ab after the closing member support 2 is installed in the through hole H. 1C (see FIG. 4). When the first refractory putty 1A and the second refractory putty 1B are inserted into the sheet-shaped one while being curvedly deformed between each of the pair of partition surfaces 11 and the pair of partition surfaces 14, the restoring force of the putties causes the left and right end surfaces to be left and right. The portion is pressed against the partitioning surface portions 11 and 14 to be restrained, and can be attached while maintaining a curved shape (see FIG. 3). The inserted refractory putty 1C is previously fitted in a metal frame F as shown in FIGS. 3 and 4, and is kept in a curved shape.
The metal frame F is formed so as to be in surface contact with substantially the entire lower end surface and both side edges of the inserted refractory putty 1C and a part of the outer peripheral portion. Is a hook portion 16 for hooking on the connecting portion 10
Are provided. By the way, in the refractory penetration portion 3 formed by loading the refractory putty 1 into the plugging material support 2,
When a fire occurs on the side of the opening 8, the heat generated by the combustion causes the refractory putty 1 to thermally expand.
Can be filled in the through-hole H and the closed state can be maintained. At this time, the heat due to the fire is transmitted not only directly from the opening 8 to the refractory putty 1 but also from the closing support 2 received by the locking portion 9. Then, in the closing support 2, heat is transmitted from the locking portion 9 to the supporting portion 7 via the connecting portion 10. In the course of the heat transfer, the partition surfaces 11 and 14 are in close contact with the middle part in the depth direction of the refractory putty 1, so that the refractory putty cylinder is heated from the inside, and the heat around the drain pipe P is heated. Expansion can be promoted from an early stage. The partition surface portions 11 and 14 constitute a heat transfer promoting means Q. Further, since the partition surface portions 11 and 14 are formed discontinuously with the support portion 7, they do not act on the heat transfer to the lower side of the slab S, and can prevent the temperature rise in the space below the slab S. It becomes possible.

Next, a procedure for forming the fireproof penetration portion 3 using the closing member support 2 will be described. [1] A drain pipe P is installed in the through hole H as shown in FIG. [2] Obstruction member support 2 is prepared. At this time, the support body G is moved by the slide mechanism L to the first body G1.
And the second main body G2 are positioned such that the overlap between them and the second main body G2 is maximized. That is, the notch between the ends of the locking portion 9 is kept in a compact state with the largest notch dimension. Incidentally, a first refractory putty 1A and a second refractory putty 1B are attached to the short supporting portion 7Aa and the second supporting portion 7B of the first supporting portion 7A, respectively (see FIG. 4). [3] Insert the closing member support 2 in the most compact state into the through hole H. That is, the support portion 7 and the connecting portion 1
0 is set between the peripheral wall of the through hole H and the drain pipe P. [4] The first main body G1 and the second main body G2 are relatively slid in the spreading direction (see FIG. 5), and the branch joint P3 is located in the notch 17 between the ends of the locking portion 9. To place. By this sliding movement, the second refractory putty 1B on the second support portion 7B is fed into the space below the branch joint P3 of the drain pipe P. That is, the presence of the branch joint P3 allows the putty to be positioned smoothly despite the position where the putty is difficult to pack. [5] Next, the inserted refractory putty 1C is inserted into the long support portion 7Ab from above. In this state, the long support 7
The metal frame F of the inserted refractory putty 1C is in contact with Ab, and the hook 16 of the metal frame is hooked on the second connecting portion 10B. Then, the surrounding space V is in a state in which the refractory putty 1 is loaded over the entire circumference (see FIG. 6). [6] The screw 12 is tightened to fix the first main body G1 and the second main body G2, and the screw is fixed to the slab S using the screw insertion hole 13 (see FIG. 6). [7] If necessary, cover the recessed portion of the opening 8 with a blind filler (see FIG. 2).

According to the above procedure, it is possible to easily and efficiently construct the fireproof penetration portion 3 even in a place where a branch pipe exists.

[Another Embodiment] Another embodiment will be described below.

<1> As described in the previous embodiment, the closing member support is not limited to the use in which the obstruction support is installed from above in the through-hole of the slab. It is also possible to adopt a use form of installation or a use form of installation in a lateral direction with respect to a wall.
Therefore, the structure is not limited to a slab, but may be a wall or a ceiling. Further, the elongated body is not limited to the drain pipe described above, and may be, for example, an air-conditioning pipe, a water supply pipe, a pipe such as a conduit, or an electric wire. <2> The support tool main body is not limited to the one configured by the two components (the first main body G1 and the second main body G2) described in the above embodiment, but may be configured by, for example, three or more members. There may be. Furthermore, it may be constituted by a single member. In that case, the structure is simple and the production effort is hardly required, so that it can be formed at low cost.
Further, it is not always necessary to provide the slide mechanism L, and furthermore, a support body in which the locking portion 9 is provided over the entire circumference of the opening 8 may be used. <3> The shape, positional relationship, and the like of each part of the support part, the connection part, and the locking part can also be changed. For example, as shown in FIG. 7, the support body G is divided into three parts in the circumferential direction, and a second main body G1 is slidably movable along the circumferential direction of the support body G with respect to the first main body G1. A configuration in which the main body G2 and the third main body G3 are attached may be employed. And
The first main body G1 is formed of an arc-shaped sheet metal member, and a locking portion 9 is formed by a bent portion 9a of an outer peripheral portion, and a support portion 7 is integrally formed inside the locking portion 9.
Specifically, the refractory putty 1 is fixed to the lower surface of the support portion 7 with a metal screw 18. A slit 15 for slidably connecting the second main body G2 and the third main body G3 along the longitudinal direction is separately formed in a widthwise intermediate portion of the first main body G1. The second main body G2 and the third main body G
Reference numeral 3 denotes a locking member 19 serving as the locking portion 9 and a supporting member 20 serving as the supporting portion 7. This locking member 1
The relative position between the support member 20 and the support member 20 can be fixed by engaging a lock claw 20 a formed on the support member 20 with an engagement hole 19 a formed on the lock member 19. By the way, the locking member 19 has one end covered by the first main body G1 and connected by a rivet 21 penetrating the slit 15, and slides relatively to the first main body G1 along the slit 15. It is configured to be able to. The refractory putty 1 is fixed to the lower surface of the support member 20 with a metal screw 18 like the first main body G1. Therefore, regarding the installation in the through hole H, the first main body G1 is first inserted into the through hole H, and then the two locking members 1 are inserted.
9 is slid in the extending direction until the tips come into contact with each other, and the flanges at the tips are fixed with screws. Then, each locking member 19 is inserted into the gap between both locking members 19 and the elongated body P, and the locking claws 20 a of the support member 20 are engaged with the respective engagement holes 19 a of the locking member 19. The fireproof penetration part 3 can be easily and quickly installed, and can be configured without any trouble. Further, when a fire occurs due to the opening 8, the accompanying heat is received by the first main body G 1, second main body G 2, and third main body G 3 and transmitted to the refractory putty 1, and the metal The heat is efficiently transmitted from the screw 18 to the intermediate portion of the refractory putty 1. Therefore, the refractory putty 1 receives the heat transfer from the beginning of the fire and thermally expands, so that the refractory penetration 3 can be more reliably closed. The metal screw 18 corresponds to the heat transfer promoting means Q. Further, according to the obstruction member support of the present embodiment, the configuration of the support main body can be simplified, so that the cost can be easily reduced. <4> On the other hand, the slide mechanism has a function of setting the length of the C-shaped annular portion of the locking portion, and the closing member 1 on the support portion 9.
Has also been described as having a function of feeding the same to another location on the circumference, but the feeding mechanism R can also be realized separately from the locking mechanism slide mechanism described in the previous embodiment. For example, as shown in FIG. 8, only the partition surface portion 11 (or 14) described in the above embodiment may be configured to be movable in the through hole H along the circumferential direction. Even when the opening 9 is partly covered with an obstacle to form a shadow, and it is difficult to evenly insert the obstruction material 1 into the surrounding space V, the obstruction material may be located at a place where the obstruction material 1 can be inserted. After inserting 1, the feeding mechanism R feeds the shaded portion, whereby the entirety of the surrounding space can be reliably loaded with the blocking material. And
This feeding mechanism R can also serve as the heat transfer promoting means Q.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing the installation state of a drain pipe.

FIG. 2 is an explanatory side view showing an installation state of a plugging member support.

FIG. 3 is an exploded perspective view showing a plugging member support.

FIG. 4 is a perspective view showing a plugging member support.

FIG. 5 is a top view explanatory view showing a plugging member support.

FIG. 6 is a top view explanatory view showing the installation state of the plugging member support.

FIG. 7 is a top view showing a main part of an obstruction member support of another embodiment.

FIG. 8 is a top view showing a main part of an occlusion material support device of another embodiment.

FIG. 9 is a partially cutaway perspective view showing the installation state of a conventional plugging member support.

FIG. 10 is a partially cutaway perspective view showing an installation state of an obstructing member support which can be considered as a reference.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Closure material 7 Support part 8 Opening part 9 Locking part 11 Partition plate 14 Partition plate 18 Metal screw G Support body H Elongated body insertion through hole P Elongated body Q Heat transfer promoting means S Structure V Surrounding space

Claims (1)

(57) [Claims] 1. A closed member inserted into a through hole for inserting a long body.
A metal supporting portion capable of supporting the plugging material, and an opening of the through hole
A metal locking part that can be locked around the
Around the insertion portion of the elongated body in the through hole of the structure
Closure made of a heat-expandable refractory material loaded in a space
The sealing material is configured to be freely supported, and the heat from the opening is
In the axial direction of the through hole in the loading range of the plugging material,
Blocking material support provided with heat transfer promoting means for promoting transfer between the sections
Tool, The heat transfer promoting means is configured to set the loading range with respect to the axis.
Into a plurality in the circumferential direction, and
Obturator support composed of wide metal partitions
Utensils.