JP2621952B2 - Fireproof shutter and protector case for drainage passage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[Industrial applications]

The present invention relates to an improvement in a fireproof shutter and a protector case in which, for example, a ceramic toilet bowl is installed on a floor of a building using a protector case made of a fireproof material or metal.

[Prior art]

As a conventional fire-resistant toilet installation device, the present applicant installs a metal protector case in a toilet slab installation hole of a concrete slab, and stores and installs a ceramic toilet bowl in the protector case, thereby preventing the above-mentioned protector case from fire. We offer a variety of things that function as walls. In this case, cover the lower outside of the protector case with a highly heat-resistant fireproof cover so that the temperature near the upper end of the protector case at the time of a fire does not rise above the legal safety temperature of 260 ゜. ,
A reasonable effect has been obtained.

[Problems to be solved by the invention]

However, in such a conventional fire-resistant toilet installation device, when a fire occurs downstairs of the building, the drain pipe connected to the lower part of the protector case and communicated with the drain port of the toilet works as a chimney, and this drainage is performed. There was a problem that heat and smoke downstairs were transmitted to the upper part through the pipe, and the upper end of the protector case exceeded the legal temperature of 260 °. The present invention has been made in order to solve the above-mentioned problems, and has been made to prevent the heat and smoke generated by a fire, etc. downstairs from being transmitted to an upper floor through a drain pipe connected to a lower portion of a protector case. An object of the present invention is to provide a shutter for a passage and a protector case.

[Means for Solving the Problems]

The fireproof shutter for drainage passages according to the present invention is configured to close the drainage passage portion of the toilet when the temperature reaches a predetermined temperature or higher. The protector case according to the present invention includes a fireproof shutter that closes the drain passage when the temperature reaches a predetermined temperature or higher.

[Operation]

The fireproof shutter and the protector case for a drainage passage according to the present invention close the drainage passage portion of the toilet when the temperature reaches a predetermined temperature or higher.

【Example】

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of an entire fire-resistant toilet installation apparatus to which an embodiment of the present invention is applied, and FIG. 2 is a sectional view taken along line AA of FIG. In FIGS. 1 and 2, reference numeral 1 denotes a fireproof protector case for mounting a toilet made of metal such as stainless steel. The protector case 1 stores a ceramic toilet (Japanese-style toilet) 2. As shown in FIG. 2, a lower case portion (protector case portion) 10, a horizontal outward flange-shaped waterproof fin 11 provided at an upper end edge of the lower case portion 10, and a waterproof fin 11 are provided. And a rising frame-shaped upper case portion 12 provided at the upper portion of the vehicle. In the protector case 1, a water supply pipe connection port 16 is provided at a front portion of the upper case section 12, and a toilet joint part 17 is provided at a rear end side of the water supply pipe connection port 16.
Is provided. The toilet joint 17 has a through hole at the center along a 30 ° inclined surface with respect to a vertical plane, and a ceramic toilet (Japanese toilet) 2 is provided in the protector case 1. Is stored, the water supply spat portion of the toilet bowl 2
18 are configured to face each other via a rubber packing. Therefore, when the toilet bowl 2 is stored and fixed at a predetermined position in the protector case 1, the toilet bowl 2 and the water supply pipe connection port are connected.
16 is inevitably closely tied without any additional measures. Further, the protector case 1 has a drain trap 3 housed and installed therein, an adjuster (not shown) for adjusting a height position and a front-rear position of the toilet bowl 2 respectively, and a protector case 1 attached to an upper end portion of the upper case portion 12. And a cover plate 8. The cover plate 8 includes an upper surface front portion 80 curved to correspond to the respective front shapes of the upper case portion 12 and the toilet bowl 2, a pair of left and right upper surface side portions 81, and an upper surface rear portion.
82. The upper surface front portion 80 is detachably attached and fixed between the front portion of the protector case 1 and the front portion of the toilet bowl 2 so as to cover the gap. A trap cleaning opening 82 is provided at the center of the upper rear portion 82.
a trap cleaning sleeve 82 is fitted into the trap cleaning port 82a, whereby the lower end of the sleeve pipe 30 is inserted into and connected to the cleaning port of the drain trap 3, and A cap 31 is provided at the upper end of the tube 30.
Are detachably fitted. In the above, the outer lower part of the protector case 1, that is, the outer peripheral surface of the lower case part 10
Covered with. The fireproof cover 6 is formed of a special silica material, GRC, asbestos, porcelain, or the like having a lightweight and high heat insulating property, and functions to prevent the lower case portion 10 from being heated when a fire occurs. As shown in FIG. 2, the fireproof cover 6 and the protector case 1 housed therein are installed in a toilet installation hole 91 provided in a concrete slab 90 constituting a floor 9 of a building such as a high-rise building. . At the time of this installation, a leveling mortar 92,
After each of the waterproof layer 93, the holding mortar 94, the cinder concrete 95, and the mortar 96 are laid sequentially, the tile 97 is laid on the mortar 96. A fireproof shutter 7 is provided in the middle of the drain passage section 4 as shown in FIGS. The fireproof shutter 7 includes a shutter housing case 5 mounted horizontally and a shutter piece 7a slidably housed in the fireproof shutter housing case 5. The refractory shutter piece 7a is, for example, a disk having a diameter slightly larger than the inner diameter of the drain passage section 4, and is formed of a material having heat insulating properties and thermally expanding by heating. Then, the refractory shutter piece 7a is moved to the side of the drain passage section 4 as shown in FIG. 4 to open the drain passage section 4, and as shown in FIG. It is configured to be moved right above and to be slid between a closed position in which the drain passage section 4 is closed. However, at normal times, the fourth
As shown in the figure, the refractory shutter piece 7a is positioned at the lid opening position by a pair of thermal fuses 70 as positioning means mounted in the refractory shutter storage case 5, and is closed by a spring 71 as moving urging means. It is biased to move to the lid position side. The thermal fuse 70 is made of a melting member such as metal or plastic that melts at a certain temperature or higher. Although the thermal fuse 70 is formed in a substantially triangular shape as shown in FIG. 4, it may be formed in a substantially triangular and hollow shape as shown in FIG. Then, the periphery of the fireproof shutter storage case 5 is
Except for the uncovered portion 6a near the thermal fuse 70, it is integrally covered with the fireproof cover 6. This is to ensure the operation of the thermal fuse 70. In this embodiment, the protector case 1 and the fireproof shutter 7 are integrally covered with the fireproof cover 6, but they may be separately covered. Also, only the uncovered portion 6a near the thermal fuse 70 is not covered with the fireproof cover,
The uncovered area may be expanded or reduced more widely. A drain pipe 20 is connected below the drain passage section 4 on the lower side of the protector case 1. The two are connected by a ring 21, a rubber ring 22, and a nut 23. Further, in this embodiment, the fireproof shutter 7 is formed in a part of the protector case 1, but as shown in FIG.
It may be provided in a drain pipe 20 as a drain passage connected to the protector case 1. The fireproof shutter 7 is covered with a fireproof cover 6a. Next, the operation will be described. Normally, the refractory shutter 7 is positioned at the lid opening position in FIG. 4 by the thermal fuse 70, and the drain passage 4 is opened.
Since part of 70 is formed on the inner wall 70a of the drain passage section 4, sewage and filth drained from the drain port 3a of the toilet 2 are drained through the drain passage section 4 without any problem. However, when a fire occurs below the floor 9 which is the lower part of the protector case 1 and the thermal fuse 70 is heated to a certain temperature or higher, the thermal fuse 70 is melted. Then, the fireproof shutter 7 is pushed by the spring 71, and the fourth
The lid is moved from the open position in the figure to the closed position in FIG. 5, and the fireproof shutter 7 automatically closes the middle of the drainage passage 4. At this time, as shown in FIG. 6, the refractory shutter 7 is thermally expanded by heating and is pressed against the inner peripheral surface 5a of the refractory shutter storage case 5 to completely close the clearance of the drain passage portion 4. Therefore, the heat generated by the fire generated downstairs causes the drainage passage 4
Is shut off by the fireproof shutter 7 that has closed in the middle of
The heat is transmitted to the upper floor through the drain passage section 4, and the upper floor is not burned. In addition, since the thermally expanded fireproof shutter 7 completely blocks the clearance of the drain passage section 4, smoke generated on the lower floor does not flow to the upper floor. Furthermore, the fireproof cover 6 that integrally covers the lower outside of the protector case 1 and the periphery of the fireproof shutter storage case 5 reliably shuts down heat in the downstairs, and the heat generated by the toilet bowl 2 installed in the protector case 1. Prevent breakage and protect the upper part below the legal safe temperature (260 （). 9 (A) and 9 (B) show another embodiment of the present invention, in which a fireproof shutter 7 made of the same material as described above is rotated about a fulcrum shaft 72. This is a butterfly type. Also in this case, normally, as shown in FIG. 9 (A), the refractory shutter 7 is positioned at the opening position by the thermal fuse 70, and when the thermal fuse 70 melts due to a fire downstairs or the like, the ninth thermal fuse is closed. As shown in FIG. 7B, the fireproof shutter 7 is pushed by the spring 71 and is rotated about the fulcrum shaft 72 to the closed position to automatically close the drainage passage 4. The fireproof shutter 7 may be provided in a drain pipe 20 as a drain passage. In the above embodiment, the temperature fuse 70 is used as the positioning means at the position where the refractory shutter 7 is closed, but the refractory shutter 7 is opened by mechanically pulling out the positioning pin or the like by a temperature detecting means such as a bimetal. A mechanical positioning method such as moving from the lid position to the lid position can also be used. Further, in the above embodiment, the spring 71 is used as the urging means for moving the fireproof shutter 7 from the open position to the closed position, but a weight or the like may be used.

【The invention's effect】

Since the present invention is configured as described above, when the temperature reaches a predetermined temperature or more, the drainage passage of the toilet bowl can be reliably closed, and the heat and smoke generated by a fire downstairs can be reliably shut off and transmitted to the upper part. Never be.

[Brief description of the drawings]

FIG. 1 is a plan view of a fire-resistant toilet installation apparatus to which one embodiment of the present invention is applied, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, FIG. FIG. 5 is a sectional view taken along line BB of FIG. 3, FIG. 6 is a sectional view taken along line CC of FIG. 5, and FIG. 7 is a view similar to FIG. FIG. 8 is a sectional view showing another embodiment of the fireproof shutter, and FIGS. 9 (A) and 9 (B) are schematic sectional views of another embodiment. 1 is a protector case, 2 is a toilet bowl, 3 is a drain trap, 3a is a drain port, 4, 20 is a drain passage, 5 is a fireproof shutter storage case, 6 is a fireproof cover, 7 is a fireproof shutter,
7a is a refractory shutter piece, 70 is a thermal fuse as a positioning means, 71 is a spring as a moving biasing means, and 9 is a floor.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shunsuke Takeuchi 4-9-19-1 Kamiyoga, Setagaya-ku, Tokyo Inside Kimura Giken Co., Ltd. Kimura Giken Co., Ltd. (56) References Japanese Utility Model Showa 62-50282 (JP, U)

Claims (4)

(57) [Claims] 1. A fireproof shutter for a drainage passage, which is disposed in a drainage passage portion of a toilet and closes the drainage passage portion when the temperature reaches a predetermined temperature or higher. 2. The fireproof shutter for a drainage passage according to claim 1, wherein at least a part of the fireproof shutter for a drainage passage is covered with a fireproof cover. 3. A protector case for mounting a toilet on a floor of a building, comprising a fireproof shutter for closing a drain passage when the temperature reaches a predetermined temperature or higher. 4. The protector case according to claim 3, wherein a lower side of the protector case and at least a part of the fireproof shutter are covered with a fireproof cover.