JPH09276436A - Wind-out piping supporting structure for sprinkler fire-fighting equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lower the height of a use space inside the ceiling in the subject structure. SOLUTION: Branch piping for water supply arranged inside the ceiling and a sprinkler head 3 arranged at the opening hole of a ceiling board are connected by wind-out pipings 8 and 9 and, at the top end of an elbow 9 on the side of the sprinkler head 3 of the wind-out pipings 8 and 9, a through part fitted vertically to a hanging bolt 21 fixed on a slab plane 2 inside the ceiling so as to be freely adjusted and a fixed part 24 for fixing the through part to the hanging bolt 21 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an unwinding pipe support structure for a sprinkler fire extinguishing system, which is suitable for a building such as a high-rise house where the height of the space above the ceiling is small.

[0002]

2. Description of the Related Art Conventionally, there is a pipe support structure for sprinkler fire extinguishing equipment as shown in FIG. 7, for example. Figure 7
In the space 103 in the ceiling between the ceiling board 101 and the ceiling slab surface 102, a water supply branch pipe 104 is installed, and the cheese 1 provided in the middle of the water supply branch pipe 104
Flexible pipe 106 to be unwound pipe at the outlet of 05
, And the sprinkler head 107 is connected to the tip of the flexible pipe 106. Branch pipe 104 for water supply
Is an insert 108 driven into the ceiling slab surface 102.
It is supported by a suspension band 110 of a suspension bolt 109 screwed in. Further, the flexible tube 106 is supported and fixed to the mounting bar 112 by a fixing fitting 111 on the tip side. On the back side of the ceiling board 101, a plurality of M bars 1
13 is fixed, the embar 113 is connected to the channel 115 via the clip 114, and the mounting bar 112 is fixed to the channel 115. The sprinkler head 107 is arranged at the position of the head mounting hole 116 of the ceiling board 101 in such a supporting and fixed state, and finally the sealing plate 117 is fitted into the gap of the head mounting hole 116 from the lower side of the ceiling board 101. The mounting state is as shown in FIG.

Most of such sprinkler fire extinguishing equipment is installed in buildings such as office buildings and department stores. In recent years, however, fire extinguishing activities by fire fighters in case of a fire on the high floors of high-rise apartments have also been carried out. In view of the difficulty, it is strongly desired to install sprinkler fire extinguishing equipment, and installation of sprinkler fire extinguishing equipment is being legally established.

[0004]

However, in the case of a high-rise house, the height above the ceiling is often set low in order to prevent the height of the building from becoming unnecessarily high. In some cases, the height of the ceiling above the floor is made lower, and for example, the height above the ceiling is around 200 mm. On the other hand, in the conventional construction structure as shown in FIG. At least 2 depending on diameter and pipe support structure
The height above the ceiling is required to be about 50 mm, which makes it difficult to pipe in a narrow ceiling such as a high-rise house. Of course, the height above the ceiling should be set to the height required for piping, but this raises the problem of increasing the height of the entire building.

The present invention has been made in view of the above-mentioned conventional problems, and supports the unwinding pipes of a sprinkler fire extinguishing equipment capable of minimizing the height above the ceiling required for installing the sprinkler fire extinguishing equipment. It is intended to provide a structure.

[0006]

In order to achieve the above object, the present invention is configured as follows. First, the present invention is directed to an unwinding pipe support structure of a sprinkler fire extinguishing facility in which a water supply branch pipe arranged in a ceiling and a sprinkler head arranged in an opening hole of a ceiling board are connected by a unwinding pipe. To do.

With regard to such an unwinding pipe support structure, the present invention is directed to a pipe end of the unwinding pipe on the side of the sprinkler head, which is vertically inserted into a suspension bolt fixed to a slab surface in a ceiling and has an adjustable penetrating portion. And a fixing portion for fixing the penetrating portion to the suspension bolt. According to the present invention, a horizontal adjustment mechanism is provided on the fixing portion of the suspension bolt with respect to the ceiling slab surface so that the position where the bolt is suspended can be adjusted horizontally. This horizontal adjusting mechanism is an adjusting plate member having a screw hole for screwing and fixing a hanging bolt at one end and an elongated hole for inserting a fixing bolt screwed and fixed to the ceiling slab surface at the other end.

Further, the unwinding pipe comprises a flexible pipe connected to the side of the branch pipe for water supply and an elbow joint connected to the side of the sprinkler head, and a penetrating portion and a fixing portion are formed on the side surface of the vertical pipe portion of the elbow joint. Is provided and is fixedly supported by the hanging bolt. Therefore, according to the present invention, since the unwinding pipe is supported on the ceiling slab surface by the pipe end of the unwinding pipe on the sprinkler head side, the height of the used space in the ceiling can be kept low. Further, since the hanging bolt can be moved in the vertical direction and the horizontal direction by the penetrating portion and the horizontal adjustment plate, the sprinkler head can be arranged at any position and the construction is easy.

[0009]

1 is an explanatory view showing an unwinding pipe support structure of a sprinkler fire extinguishing facility according to the present invention. FIG.
, 1 is a ceiling board, 2 is a ceiling slab surface,
A closed type sprinkler head 3 is arranged at the position of the head mounting hole 6 of the ceiling board 1. A sealing plate 4 is mounted in the gap between the sprinkler head 3 and the head mounting hole 6.

When a fire occurs and the temperature rises, the heat-sensitive part of the sprinkler head 3 is melted and decomposed, the deflector drops, and the fire extinguishing water pressurized by the fire extinguishing pump is sprayed. A screw portion 7 is integrally formed on the upper part of the sprinkler head 3, and a downward end of an elbow joint 8 connected to a flexible pipe 9 is connected to the screw portion 7. The flexible pipe 9 is branched and connected from a water supply branch pipe arranged in the ceiling.

FIG. 2 shows the flexible tube 9 and the elbow joint 8 used as the unwinding tube in an extracted manner. In FIG. 2, the flexible tube 9 has a plurality of bellows 1 in the axial direction.
2 is formed and can be bent at the place where the bellows 12 is formed. A nipple 14 having a threaded portion 13 is provided at one end of the flexible tube 9,
The nipple 14 is screwed and fixed by the cap nut 17.
The threaded portion 13 of the nipple 14 is screwed into the outlet of a branch joint such as cheese provided in the branch pipe for water supply for branch connection. By using such a flexible pipe 9, the flexible pipe 9 can be bent at a necessary position, and the unwinding pipe of the sprinkler pipe can be easily constructed.

One end of the elbow joint 8 is integrally connected and fixed to the other end of the flexible pipe 9 by welding or the like. By integrating them, they are easy to handle and workability is improved. A screw may be formed on one side of the elbow joint, and the other end of the flexible tube 9 may be screwed and fixed. FIG. 3 is a view showing how the flexible pipe 9 is attached to the ceiling slab surface 2. As shown in FIG.
In the vicinity of the ceiling slab surface 2, a flexible pipe 9 is supported in the horizontal direction by a saddle 18 having an inverted ohm shape. That is, as shown in FIG. 4, the saddle 18 is attached to the ceiling slab surface 2.
Is fixed by a bolt 19 screwed into the insert, and the flexible pipe 9 is inserted into and supported by the saddle 18. An insulating member 18a made of rubber or the like is interposed between the saddle 18 and the flexible tube 9 to prevent electrolytic corrosion. Further, by supporting the middle of the flexible pipe 9 on the ceiling slab surface 2 with the saddle 18, the height can be suppressed to be lower than that of the conventional supporting structure using the hanging band and the hanging bolt. The nipple 14 side of the flexible pipe 9 is connected to, for example, a branch joint having a plurality of connection ports (not shown), the branch joint is connected to a branch pipe for water supply, and the branch pipe for water supply is connected to a fire pump. Connected to the main pipe. The saddle 18 may be fixed to the ceiling slab surface 2 at one place by making the shape of the saddle 18 approximately α.

Referring again to FIG. 1, on the downward end side of the elbow joint 8 connected to the screw portion 7 of the sprinkler head 3, the suspension bolt 2 fixed to the ceiling slab surface 2 is provided.
A fixing member 20 for fixing to 1 is fixed by welding or the like. As shown in FIG. 5, the fixing member 20 has a penetrating portion 2 having a hole 22 that vertically penetrates the hanging bolt 21.
3 and a threaded portion 24 as a fixing portion for fixing the penetrating portion 23 to the hanging bolt 21 at a predetermined position. The fixing member 20 is welded to one end of the elbow joint 8, penetrates the hanging bolt 21 through the penetrating portion 23, adjusts the position of the elbow joint 8, and tightens the penetrating portion 23 with the screw portion 24.
The elbow joint 8 is fixed to the suspension bolt 21. By doing so, the position adjustment of the elbow joint 8 and the flexible pipe 9 in the vertical direction can be easily performed in accordance with the height above the ceiling.

Referring again to FIG. 1, reference numeral 26 denotes a horizontal adjusting plate as a horizontal adjusting mechanism. The horizontal adjusting plate 26 is attached to the ceiling slab surface 2 so as to be horizontally movable 360 °, and the elbow joint 8 has a horizontal position. Adjust the position in the direction. As shown in FIG. 6, the horizontal adjustment plate 26 has a length for inserting a screw hole 29 into which the hanging bolt 21 is screwed and fixed at one end and a bolt 27 which is screwed and fixed into the insert of the ceiling slab surface 2 at the other end. And a hole 28. A substantially trapezoidal protrusion 30 is formed at the end of the horizontal adjustment plate 26, and a screw hole 29 is formed in the protrusion 30. The ends of the suspension bolts 21 are screwed into the screw holes 29, and the suspension bolts 21 are fixed to the horizontal adjustment plate 20 in a state where they are prevented from loosening by tightening the nuts 32. Further, a plurality of concave and convex portions 31 are formed on the rear surface of the horizontal adjustment plate 26 having the elongated holes 28 on the ceiling slab surface 2 side to prevent slippage. The horizontal adjustment plate 26 is fixed to the ceiling slab surface 2 by screwing the bolt 27 into the insert of the ceiling slab surface 2 through the elongated hole 28. The horizontal adjustment plate 26 rotates 360 ° around the bolt 27 as a fulcrum and moves horizontally by the length of the slot 28. Therefore,
The elbow joint 8 fixed to the suspension bolt 21 fixed to the protrusion 30 of the horizontal adjustment plate 26 and the sprinkler head 3 connected to the elbow joint 8 are also movable in the horizontal direction within this range, and within this range. Since the sprinkler head 3 can be arranged at any position of
Construction is easy.

Next, the work of attaching the unwinding pipe consisting of the flexible pipe 9 and the elbow joint 8 will be described. First,
A suspension bolt 21 is fixed to the ceiling slab surface 2 by a horizontal adjustment plate 26 so that the position can be adjusted horizontally. That is, the bolt 27 is inserted into the elongated hole 28 of the horizontal adjustment plate 26 and screwed into the insert of the ceiling slab surface 2 to fix the horizontal adjustment plate 27. In this case, the tightening of the bolt 27 into the insert is not so strong, and the horizontal adjustment plate 26 is allowed to rotate 360 ° in the horizontal direction and move within the slot 28.

Next, the suspension bolt 21 is screwed into the screw hole 29 and the nut 32 is firmly tightened to fix the suspension bolt 21 to the ceiling slab surface 2. In this state, the suspension bolt 21 is rotated 360 ° in the horizontal direction and moved to the position where the sprinkler head 3 is disposed. Next, the pipe end of the elbow joint 8 is fixed to the suspension bolt 21 by the fixing member 20 so that the position of the elbow joint 8 can be adjusted in the vertical direction. That is, the hanging bolt 21 fixed to the ceiling slab surface 2 is attached to the hole 2 of the penetrating portion 23.
2 and then threaded 2 after positioning in the vertical direction
4 is screwed in, and the penetrating portion 23 is fixed to the suspension bolt 21.

Finally, the leveling plate is securely fixed by firmly tightening the bolt 27. in this way,
Since the unwinding pipe is supported on the ceiling slab surface 2 by the hanging bolts 21 on the downward end side of the elbow joint 8, the height of the space used by the ceiling board 1 and the ceiling slab surface 2 can be kept low. Especially from the flexible pipe 9 to the ceiling slab surface 2
The height can be almost eliminated.

Therefore, the ceiling board 1 and the ceiling slab surface 2
The minimum height dimension can be about 100 mm. Further, the positions of the elbow joint 8 and the flexible pipe 9 can be easily adjusted by penetrating the hanging bolt 21 through the penetrating portion 23 of the fixing member 20 provided in the elbow joint 8 to adjust the position in the vertical direction and tightening the screw portion 24. Adjustments can be easily made according to the height above the ceiling. Further, the sprinkler head 3 can be arranged at an arbitrary position by rotating the hanging bolt 21 in the horizontal direction by 360 ° and moving it by the length of the elongated hole 28 by the horizontal adjustment plate 26.

[0019]

As described above, according to the present invention, since the unwinding pipe is supported on the ceiling slab surface by the hanging bolt at the end of the unwinding pipe on the side of the sprinkler head, the inside of the ceiling where necessary The height of the used space can be kept low.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an unwinding pipe support structure of a sprinkler fire extinguishing facility of the present invention.

FIG. 2 is a half sectional view of a flexible pipe and an elbow joint used in FIG.

FIG. 3 is a front view showing a mounted state of the flexible pipe of FIG.

FIG. 4 is a sectional view of FIG. 3;

5 is a plan view of the elbow joint of FIG.

6 is a front view of the horizontal adjustment plate of FIG.

FIG. 7 is an explanatory view of a conventional structure.

[Explanation of symbols]

 1: Ceiling board 2: Ceiling slab surface 3: Sprinkler head 8: Elbow joint 9: Flexible pipe 20: Fixing member 21: Hanging bolt 22: Hole 23: Penetration part 24: Screw part (fixing part) 26: Horizontal adjustment plate 28 : Slot 29: Screw hole

Claims (4)

[Claims] 1. An unwinding pipe support structure for a sprinkler fire extinguishing system, wherein a water supply branch pipe arranged in a ceiling and a sprinkler head arranged in an opening hole of a ceiling board are connected by a unwinding pipe. At the pipe end on the sprinkler head side of the unwinding pipe, a penetrating part that is vertically adjustable with respect to the hanging bolt fixed to the slab surface in the ceiling and a fixing part that fixes the penetrating part to the hanging bolt are provided. Unrolling pipe support structure for sprinkler fire extinguishing equipment, which is characterized by being provided. 2. The unwinding pipe support structure for a sprinkler fire extinguishing facility according to claim 1, wherein a horizontal adjustment mechanism capable of adjusting a position for suspending the bolt horizontally around the fixing portion of the suspension bolt with respect to the ceiling slab surface. Unrolling pipe support structure for sprinkler fire extinguishing equipment, which is characterized by the provision of. 3. The unwinding pipe support structure for a sprinkler fire extinguishing facility according to claim 2, wherein the horizontal adjusting mechanism has a screw hole for screwing and fixing the suspension bolt at one end and a ceiling slab surface at the other end. An unwinding pipe support structure for a sprinkler fire extinguishing facility, which is an adjusting plate member having an elongated hole through which a fixing bolt to be screwed and fixed is inserted. 4. The unwinding pipe support structure for a sprinkler fire extinguishing facility according to claim 1, wherein the unwinding pipe is connected to a flexible pipe connected to the water supply branch pipe side and a sprinkler head side. An unwinding pipe support structure for a sprinkler fire extinguishing facility, comprising an elbow joint, wherein the penetrating portion and a fixing portion are provided on a side surface of a vertical pipe portion of the elbow joint to be fixedly supported by the suspension bolt.