JPH06114120A - Fire compartment penetrator - Google Patents

Abstract

(57) [Summary] [Purpose] We want to securely fix the piping within the through hole of the fire protection partition wall and to achieve complete fire protection. [Structure] An upper frame and a lower frame are composed of a frame body 1 having the same structure, and a thermally expansive refractory material 7 having a replaceable semicircular concave portion 8 is incorporated in the frame body 1, and a pipe a is formed in the concave portion 8. Through the elastic hook piece 9 and the stopper piece 1 on the upper and lower frames.
2 and the elastic engagement pieces 11, 11a and the engagement recesses 14, 14a
By this action, they are integrally connected, they are set in the through holes, the periphery of the frame 1 is backfilled with mortar, and the construction is completed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof compartment penetrating device used in a portion where pipes, cables and the like penetrate walls and floors of a fireproof compartment.

[0002]

2. Description of the Related Art When piping, cables, etc. pass through a fireproof compartment, it is obligatory to install a fireproof device having a predetermined fireproof performance.

FIG. 4 shows an example of a conventional fire protection device. In this fire protection device, a heat-expandable refractory material 03 is attached to the inside of sleeves 01 and 02 made of metal fittings, and pipes are held by the sleeves 01 and 02. It is constructed by slidingly fitting in 04 and filling back the through holes and the openings outside the sleeves 01 and 02 with mortar.

[0004]

However, the above-mentioned conventional example has the following drawbacks.

A. Since the sleeves 01 and 02 have to be prepared for the diameter of the pipe, the number of parts is large, which is inconvenient and costly.

B. Since the sleeves 01 and 02 are fitted by sliding, the fitting strength is weak.

C. Since the sleeve is installed for each pipe, if there are two or more pipes, the sleeves will be used for the number of pipes. Therefore, the through hole becomes large, which causes a problem in wall strength and also deteriorates workability.

It is an object of the present invention to provide a fire compartment penetrating device which overcomes the above disadvantages a to c.

[0009]

The structure of the fire protection compartment penetrating device according to the present invention is as follows.

A pair of quadrangular frame bodies, a thermally expansive refractory material holding frame formed along the inside of the front and rear frames of the frame body, and a semicircular concave portion set in the holding frame are formed. A heat-expandable refractory material formed of, and an elastic hook piece formed at the center of the left frame of the frame body, with an engaging claw formed to project upward from the inside toward the outside. Elastic engaging pieces formed by projecting upward from the left frame on both sides of the elastic hook piece, and elastic hook pieces of other frame bodies that project inward at the center of the right frame of the frame body. The stopper piece formed at the tip with an engaging portion with which the claw of the frame engages, and on both sides of the stopper piece of the right frame of the frame body, so that the engaging pieces of the other frame bodies engage with each other. A fire protection compartment penetrating device comprising: an engagement recess formed on an outer surface of a frame.

[0011]

The heat-expandable refractory material set in the frame for holding the heat-expandable refractory material is selected so as to match the diameter of the pipe. If necessary, bottom plates are attached to the upper and lower frames, respectively, and then the pipes are accommodated in the concave portions of the refractory material of the lower frame which are directed upward. Next, with the upper frame body facing downward, the elastic hook piece of the upper frame body is aligned with the stopper piece of the lower frame body, and the elastic engagement piece is aligned with the engaging recess, and pressed downward as it is. In this way, the claws of the elastic hook pieces of the upper frame engage with the stopper pieces of the lower frame from the inside, the elastic engaging pieces engage with the engaging recesses from the outside, and the pair of frames connect the pipes. It is integrated while being sandwiched between the upper and lower thermally expansive refractory materials. The frame is set in the through hole as it is, and the space around the frame is backfilled with mortar.

When a fire occurs and the heat-expandable refractory material receives this heat, the refractory material thermally expands and crushes the pipe first in the frame body, and after the pipe is melted, the space is closed to complete the pipe. Take fire protection. There are three or more pipes, and if a frame is installed side by side for this, if a fire occurs,
Simultaneously with the above-mentioned fireproofing, the side surface heat-expandable refractory material attached to the left or right frame of the frame body thermally expands, and closes a minute gap formed between the adjacent frame bodies. When a metal pipe such as a copper pipe is inserted in the pipe (sheath pipe), the heat-expandable refractory material adheres to the metal pipe after melting the sheath pipe to close the gap.

[0013]

FIG. 1 shows an embodiment of a penetrating device according to the present invention. Reference numeral 1 denotes a quadrangular frame body including a front frame 2 and a rear frame 3, and a right frame 4 and a left frame 5, and 6 and 6a denote thermal expansion fireproofs formed along the inside of the front and rear frames 2 and 3 of the frame body 1. A material holding frame, 7 is a heat-expandable refractory material formed by arranging two sets of semicircular recesses 8 set in the holding frames 6 and 6a (using a product number FS-195 manufactured by Sumitomo 3M Limited), 9 Is the frame 1
Elastic hook pieces 11, 11a formed on both sides of the elastic hook piece 9 at the center of the right frame 4 and formed by engaging claws 10 projecting upward from the inner side and formed outward. In the figure, an elastic engaging piece 12 formed by projecting upward from the right frame 4 is a center of the left frame 5 of the frame body 1 and projects inward, so that an elastic hook piece 9 of another frame body is formed. Nail 10
Stopper pieces 14, 14a formed by forming an engaging portion 13 which engages with each other on both ends of the stopper piece 12 of the left frame 5 of the frame 1 are engaged pieces 11, 11a of the other frame 1.
So as to engage with each other, 16 are engaging recesses formed on the outer surface of the left frame 5, 16 is a bottom plate engaging portion formed by bending the inner lower edge of the frame 1 inward, and 17 is the bottom plate engaging. A bottom plate that is detachably mounted inside the portion 16, and 18 is a right or left frame 4
Alternatively, it is a side surface heat-expandable refractory material attached to the outer surface of 5.

In the construction, first, the frame 1 having the bottom plate 17 inserted therein is faced upward (in the case of horizontal penetration), and the pipe a is accommodated in the recess 8 of the heat-expandable refractory material 7. Next, the other frame 1 is turned downward, the elastic engaging pieces 11, 11a are aligned with the engaging recesses 14, 14a, and the elastic hook piece 9 is formed.
Is aligned with the engaging portion 13 of the stopper piece 12 and is pressed downward. In this way, the claw 10 of the elastic hook piece 9 is hooked on the engaging portion 13 of the stopper piece 12 from the inside (see FIG. 3).
), The elastic engaging pieces 11, 11a are engaged with the engaging concave portions 14, 14
The upper and lower frame bodies are firmly connected to each other by engaging with a from the outside. The pair of frame bodies 1 holding the pipe a are set in the through holes 20 of the wall 19, and the peripheral gap is backfilled with the mortar 21. This state is shown in FIG. Should a fire occur and the heat-expandable refractory material 7 receives this heat, the refractory material 7 thermally expands and first crushes the pipe a in the frame body 1, and after the pipe a is melted, it becomes a space. To completely prevent fire. Further, the side surface heat-expandable refractory material 18 also thermally expands, and when there is an adjacent frame body, it closely adheres to this side surface to perform a seal, and blocks fire and smoke from passing through the wall penetrating portion.

[0015]

The wall penetrating device according to the present invention is constructed as described above and has the following effects.

A. When the pipe diameters differ within a certain range, it is convenient because the frame of the same structure and size can be used as it is by simply replacing the heat-expandable refractory material.

B. The upper and lower frames can be easily connected simply by pressing them up and down, and they are firmly connected by the elastic hook piece, the stopper piece, and the elastic engaging piece and the engaging recess, so the construction is simple and there is no danger of coming off. .

C. Since the elastic engagement piece engages in the engagement recess, there is no fear of lateral displacement, and since there are no protrusions on the surfaces of the left and right frame bodies, adhesion and space saving are possible.

D. Since two pipes can be constructed by one penetrating device, the size of the through hole may be smaller than that of the conventional example.

E. For example, when two frame bodies are installed side by side, due to the action of the side surface thermal expansion refractory material, pebbles and the like do not enter into the space between the frames, and the frame bodies are completely closed.

[Brief description of drawings]

FIG. 1 is a perspective view of a penetrating device according to the present invention.

FIG. 2 is a side view of a state in which the construction is performed.

FIG. 3 is a sectional view taken along the line AA ′.

FIG. 4 is an explanatory view of a conventional split sleeve type penetrating device.

[Explanation of symbols]

 1 Frame 7 Thermally Expandable Fireproof Material 9 Elastic Hook Piece 10 Claws 11 and 11a Elastic Engagement Pieces 14 and 14a Engagement Recesses 17 Bottom Plate 18 Side Thermal Expansion Fireproof Material

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yozo Fushiki 1-15-17 Eirakudai, Kashiwa-shi, Chiba (72) Inventor Atsushi Takayo 3-11-9 Todoroki, Setagaya-ku, Tokyo

Claims (4)

[Claims] 1. A pair of quadrangular frame bodies, a thermally expansive refractory material holding frame formed along the inside of the front and rear frames of the frame body, and a semicircular concave portion set in the holding frame. A heat-expandable refractory material formed, and an elastic hook piece formed at the center of the left frame of the frame body, with an engaging claw formed to project upward from the inside toward the outside. And elastic engaging pieces formed on both sides of the elastic hook piece so as to project upward from the left frame, and at the center of the right frame of the frame body, projecting inward, and elasticity of other frame bodies. A stopper piece formed at the tip with an engaging portion with which the hook of the hook piece engages, and on both sides of the stopper piece of the right frame of the frame body, the engaging pieces of other frame bodies are engaged with each other. A fireproof compartment penetrating device comprising: an engaging recess formed on the outer surface of the right frame. 2. A bottom plate engaging portion is formed by bending an inner lower edge of the frame body inward, and a bottom plate detachably mounted from the inside is provided in the bottom plate engaging portion. Fire compartment penetrating device. 3. The fire protection compartment penetrating device according to claim 1, wherein a side surface thermal expansion refractory material is attached to the outer surface of the right or left frame. 4. The fire protection compartment penetration device according to claim 1, wherein the heat-expandable refractory material is provided with two recesses.