JP2008011869A - Structure of sprinkler head attaching joint - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure for easily hanging a sprinkler head from a ceiling slab, excellent in simplifying fire extinguishing equipment and setting the equipment. <P>SOLUTION: The structure comprises a bracket composed of a horizontal piece abutting to the ceiling and a bent vertical piece with a plurality of attaching holes A, and a sprinkler head attaching joint to be attached to the bracket. The attaching joint is formed in the shape of an L-shaped elbow. A sprinkler head is attached to a downward opening, and a branch tube attaching means is disposed in a sideways opening. A wing part is vertically formed, and a plurality of lines of slots B are vertically formed in the wing part. The vertical piece is made to abut to the wing part to connect the attaching holes A to the slots B. The bracket 1, the horizontal piece 2, the vertical piece 3, the sprinkler head attaching joint 10, the downward opening 11, the sideways opening 12, the wing part 14, the sprinkler head 20, the ceiling slab S1 and the ceiling member S2 are indicated in the figure. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sprinkler fire extinguishing equipment, and more particularly to a new sprinkler head mounting joint.

  Fire extinguishing equipment using sprinklers is very effective for initial fire extinguishing. In addition to buildings that are required to be installed by the Fire Service Act, such as high-rise buildings, theatres, department stores, etc. Installation is desirable even in a house. A method of directly connecting a closed sprinkler head to a water pipe is known in order to save a large amount of equipment costs such as a large capacity water tank or a water supply pump for the sprinkler equipment.

  In the conventional sprinkler fire extinguishing equipment, a water supply main pipe for fire extinguishing is connected to an elevated water tank (not shown), a branch pipe is connected to the water main pipe for fire extinguishing, and a T-joint or a cross joint is connected to the branch pipe. Branch pipes are connected, and a sprinkler head is connected to the tip of each branch pipe. The branch pipes are connected by selecting various types of pipes with a diameter corresponding to the required amount of fire-extinguishing water supplied to the end side.

  However, Patent Document 1 proposes a new piping system for a sprinkler, which is a technique for piping a branch pipe between a header and a sprinkler head using a joint. That is, a branch pipe is connected to the water supply pipe, and a water control valve, an electromagnetic valve, and a header are sequentially connected to the branch pipe. The sprinkler head is independently connected to the end side of the branch pipe through a joint. The proximal end side of the branch pipe is connected to the header through a joint such as a union.

JP-A-8-24360

  In such a sprinkler fire extinguisher, the sprinkler head protrudes directly below the ceiling, but this adjustment is difficult and a situation occurs in which the orientation changes when the branch pipe is connected through the joint. . The present invention provides a new structure in which a sprinkler head is suspended from a ceiling slab.

  The gist of the present invention is a bracket comprising a horizontal piece abutting against the lower surface of the ceiling, a vertical piece bent therefrom and provided with a plurality of attachment holes A, and a structure of a sprinkler-head attachment joint attached to the bracket. The sprinkler-head mounting joint has an L-shaped elbow shape, the sprinkler head is mounted in the downward opening, the branch pipe mounting means is provided in the lateral opening, and the wing is formed vertically. A sprinkler head characterized in that a plurality of elongated holes B are formed perpendicularly to the wing portion, the vertical piece of the bracket is in contact with the wing portion, and the mounting hole A and the elongated hole B are connected. It is a structure of a mounting joint.

  In some cases, the branch pipe mounting means may not be provided directly on the sprinkler-head mounting joint, and a socket provided with the branch pipe mounting means may be mounted on this portion.

  The present invention is as described above, and it is easy to install the sprinkler head at a regular position, and it is possible to easily attach a branch pipe made of, for example, a resin pipe. And a structure with excellent workability when installing equipment can be provided.

  In the present invention, a wing portion of a sprinkler-head attachment joint is attached to a bracket attached to a lower surface of a ceiling. The horizontal piece of the bracket is preferably formed of a plurality, and has a hole C having a diameter larger than the bolt diameter inserted into the horizontal piece (hereinafter referred to as a large diameter hole C). C is formed in parallel with the branch pipe mounting means. A plurality of mounting holes A are formed in the vertical piece. Two bolt stands are provided on the ceiling slab, whereby the positions before and after the mounting hole A are accurately adjusted.

  On the other hand, the sprinkler-head mounting joint has an L-shaped elbow shape, and the sprinkler head is mounted in the downward opening, and the branch pipe mounting means is provided in the lateral opening. Then, a wing portion is formed vertically on the back of the lateral opening, a plurality of elongated holes B are formed perpendicularly to the wing portion, the vertical piece of the bracket and the wing portion are brought into contact, The long hole B is connected. The bolts and nuts are attached through both holes, but the vertical height is adjusted by adjusting the long hole B.

  The wings are preferably formed perpendicularly to the back of the lateral opening, so that the force applied when the branch pipe is attached to and detached from the sprinkler-head mounting joint is also directly faced. And the joint orientation will not change.

  The branch pipe mounting means is intended to make the connection with the branch pipe extremely easy, and can be mounted only by inserting the tip of the branch pipe. As an example of such mounting means, a water stop ring and a lock ring are built in the joint, and the structure is configured to contact the surface of the branch pipe into which the water stop ring and the lock ring are inserted to prevent water stop and coming off.

  The branch pipe mounting means is not directly provided in the lateral opening of the L-shaped sprinkler head mounting joint, but is provided separately from the branch pipe mounting means on one side and the sprinkler head mounting joint on the other side. A socket provided with mounting means may be mounted with the sprinkler-head mounting joint. The branch pipe mounting means and the sprinkler-head mounting joint mounting means are means including a water stop ring and a lock ring.

  A branch pipe is a pipe that connects between a header and a sprinkler head. Unlike metal pipes, the branch pipe is laid with a slight margin in consideration of detachability, and usually laid in a state of being laid like a ceiling plate. . The branch pipe is preferably a resin pipe. For example, a polybutene pipe, a crosslinked polyethylene pipe, a polyvinyl chloride pipe, or the like can be employed.

  Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 shows the structure of a sprinkler-head mounting joint according to a first example of the present invention, and FIG. 2 is a top view. In the figure, 1 is a bracket and 10 is a sprinkler-head mounting joint. S1 is a ceiling slab, and S2 is a ceiling member.

  The bracket 1 is composed of a horizontal piece 2 that comes into contact with the lower surface of the ceiling slab S and a vertical piece 3 that is bent vertically. As shown in FIG. 3, the horizontal piece 2 has two large-diameter holes C, and the vertical piece 3 has two attachment holes A formed therein. The bracket 1 is for fixing a bolt 4 screwed into a ceiling slab S through a large-diameter hole C, and is fixed while adjusting the position of the head to a regular position by the large-diameter hole C. is there.

  The sprinkler-head mounting joint 10 has an L-shaped elbow shape, a sprinkler head 20 is mounted in the downward opening 11, a branch pipe mounting means 13 is provided in the lateral opening 12, and the back of the lateral opening 12 is provided. The wings 14 are formed vertically. As shown in FIG. 4, two elongated holes B are vertically formed in the wing portion 14, the vertical piece 3 of the bracket 1 and the wing portion 14 are brought into contact with each other, and the mounting hole A and the elongated hole B are connected to bolts and nuts. 15 is connected. In this case, the sprinkler head 20 must protrude inward from the predetermined hole C1 of the ceiling member S2, but its position (height) is adjusted along the long hole B provided in the wing part 14. Needless to say.

  The sprinkler head 20 is mounted by being screwed into and connected to a female screw portion carved in the downward opening 11 of the sprinkler head mounting joint 10.

  On the other hand, the branch pipe 30 extending from the header (not shown) is a polybutene pipe in this example, and is mounted and fixed by a water stop ring and a lock ring built in the lateral opening 12 in the sprinkler head mounting joint 10. . That is, large and small diameter step portions 16a and 16b are formed in the joint 10, and the water stop ring 17 and the lock ring 18 are built in the large diameter step portion 16a. It is screwed. When the branch pipe 30 is inserted into the cap 19, the water stop ring 17 and the lock ring 18 come into contact with the outer surface of the branch pipe 30, and in particular, the annular claw 18 a provided in the lock ring 18 bites out into the branch pipe 30. It has a structure that can prevent.

  As described above, according to the first aspect of the present invention, the attachment of the sprinkler-head attachment joint 10 is simple and reliable, and the branch pipe can be completely attached simply by inserting the tip into the cap 19. The advantage is clear.

  FIG. 5 shows the structure of a sprinkler-head mounting joint showing a second example of the present invention. The basic structure of the bracket 1 and the sprinkler-head mounting joint 10 is the same as that in the first example, but in this example, the lateral opening 12 is greatly changed. That is, in this example, the lateral opening 12 is simply a straight cylinder, and the branch 40 is provided with a socket 40 attached to this portion.

  Here, referring to the socket 40 with reference to FIG. 6, the socket 40 includes an opening 41 for fixing the branch pipe 30 and an opening 42 for fixing the cylindrical body 12. And both the opening parts 41 and 42 contain the same water-stop ring 17 and the lock ring 18 provided with the nail | claw 18a as the previous example, and these have the structure where the removal | prevention was prevented by the caps 19a and 19b. .

  Accordingly, by inserting the branch pipe 30 and the cylindrical body 12 into the openings 41 and 42, the mounting and fixing are completed, and the structure of the sprinkler-head mounting joint is obtained. By using this socket 40, in some cases, a conventional sprinkler-head mounting joint can be mounted as it is with a resin branch pipe.

  The present invention simplifies the fire extinguishing equipment, and its installation work is quick and inexpensive, and exhibits an excellent function not found in conventional fire extinguishing equipment, and can provide a device with extremely high practicality. .

FIG. 1 shows the structure of a sprinkler-head mounting joint according to a first example of the present invention. FIG. 2 is a top view of FIG. FIG. 3 is a view of the horizontal piece of the bracket of FIG. FIG. 4 is a view of the blade portion of the sprinkler-head mounting joint of FIG. FIG. 5 shows the structure of a sprinkler-head mounting joint showing a second example of the present invention. FIG. 6 is an enlarged view of the socket of FIG.

Explanation of symbols

1. Bracket,
2. Horizontal piece,
3 Vertical piece,
4. Bolt,
10. Sprinkler head mounting joint,
11 ... downward opening,
12 ... Lateral opening,
13. Branch pipe mounting means,
14 ... Habe,
15 ... bolts and nuts
16a, 16b ... stepped part,
17 ... water stop ring,
18. Lock ring,
18a: nails,
19 ... cap,
20. Sprinkler head,
30 ... branch pipe,
40 ... socket,
41, 42 ... socket opening,
A: Mounting holes formed in the vertical piece,
B ... A long hole formed in the wing,
C: Large-diameter hole formed in a horizontal piece,
S1 ... ceiling slab,
S2: Ceiling member.

Claims (6)

  A structure of a horizontal piece abutting on the lower surface of the ceiling, a bracket bent from the horizontal piece and a vertical piece having a plurality of attachment holes A, and a sprinkler-head attachment joint to be attached to the bracket. -The head mounting joint has an L-shaped elbow shape, a sprinkler head is mounted in the downward opening, a branch pipe mounting means is provided in the lateral opening, and a wing is formed vertically. A sprinkler-head mounting joint structure characterized in that a plurality of elongated holes B are formed vertically, the vertical piece of the bracket and the wings are brought into contact, and the mounting hole A and the long hole B are connected.   2. The sprinkler-head mounting joint structure according to claim 1, wherein said horizontal piece is preferably formed of a plurality, and has a hole C having a diameter larger than a bolt diameter inserted into said horizontal piece.   3. The structure of a sprinkler-head mounting joint according to claim 1, wherein a wing portion is formed perpendicularly to the back surface of the lateral opening.   The sprinkler-head mounting joint structure according to any one of claims 1 to 3, wherein the branch pipe mounting means includes a water stop ring and a lock ring.   2. The socket according to claim 1, wherein said branch pipe mounting means is a socket provided separately from an L-shaped sprinkler-head mounting joint, and having branch pipe mounting means on one side and sprinkler-head mounting joint mounting means on the other side. Sprinkler head mounting joint structure. 6. The structure of a sprinkler-head mounting joint according to claim 5, wherein said sprinkler-head mounting joint mounting means is a means having a water stop ring and a lock ring.

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