JPH06201071A - Sprinkler head fitting pipe fixing device - Google Patents

Abstract

PURPOSE:To provide a sprinkler head fitting pipe fixing device capable of fixing a sprinkler head fitting pipe in an open ceiling. CONSTITUTION:A sprinkler head fitting pipe fixing device is provided with a hanging bolt 1 hung from the ceiling face, and a fixture 2 having a support part 3 for supporting a sprinkler head fitting pipe B and a fitting part 5 to be fitted to the hanging bolt 1. The fixture 2 is formed in such a way that the support part 3 supports the sprinkler head fitting pipe B approximately parallel to the hanging bolt 1 at the time of fitting the fitting part 5 to the hanging bolt 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for a sprinkler pipe arranged on a ceiling.

[0002]

2. Description of the Related Art A conventional sprinkler head mounting tube fixing device is shown in FIGS. Usually, in the piping equipment of a fire extinguishing sprinkler arranged in the ceiling, some branch pipes are branched from a main pipe by a branch joint. The pipe from the branch pipe to the sprinkler head H at the end is formed by using a plurality of straight pipes S and elbow joints E obtained by cutting a steel pipe at a position of about 30 to 60 cm and appropriately joining them as shown in FIG. It was done. The pipe from the branch pipe to the end sprinkler head H is commonly referred to as unwinding pipe.The steel pipe to which the sprinkler head H at the end of the unwinding pipe is attached is the sprinkler head attachment pipe (hereinafter
It is called a mounting pipe) T. The mounting pipe T in this case is a straight pipe, and the sprinkler head H is arranged at a predetermined position by fixing it with a sprinkler head mounting pipe fixing device (hereinafter, referred to as a fixing device) A.
This fixing device A has a structure in which the fixing strength is not considered so much because it does not need to be fixed because the unwinding pipe is performed by joining the steel pipe which is a rigid body. Further, in some cases, the fixing device A was not used.

By the way, recently, from the viewpoint of labor saving and workability, instead of using the straight pipe S and the elbow joint E as the unwinding pipe, a bendable flexible pipe F as shown in FIG. 7 is used. It has become to. In this case, the attachment pipe B at the end of the unwinding pipe is composed of a straight pipe portion and a bent portion, for example, 90
It is a bend pipe of °. The sprinkler head H cannot be placed at a predetermined position unless the mounting tube B is securely fixed. The above-mentioned fixing device A is not enough to securely fix the mounting tube B because there is concern about the fixing strength. Therefore, the inventor of the present application has filed Japanese Patent Application No. 4-2583.
Fixing device for solving the problem in No. 32
Suggested K. As shown in Figure 7, this
Cylindrical fixing bracket K1 for inserting and fixing B and fixing bracket attached to the ceiling material holding bracket installed in the ceiling
It is provided with a support bracket K2 for supporting K1.

[0004]

However, in the one proposed in Japanese Patent Application No. 4-258332, the supporting metal fitting is attached to the ceiling material holding metal fitting, so that the ceiling material is not disposed, that is, the so-called exposure. Cannot be used on the ceiling. Therefore, in order to dispose the fire extinguishing sprinkler on the exposed ceiling, unwinding piping using a steel pipe and an elbow type joint had to be performed as in the conventional case.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sprinkler head mounting pipe fixing device capable of fixing a sprinkler head mounting pipe on an exposed ceiling.

[0006]

In order to achieve the above object, a sprinkler head mounting pipe fixing device according to a first aspect of the present invention is provided with a suspension bolt suspended from a ceiling surface and a support portion for supporting the sprinkler head mounting pipe. And a mounting bracket for mounting the suspension bolt to the suspension bolt, and the support portion, when the mounting portion is mounted to the suspension bolt, is configured to support the sprinkler head mounting pipe substantially parallel to the suspension bolt. It was configured as follows.

According to a second aspect of the invention, there is provided a sprinkler head mounting pipe fixing device, wherein the fixing metal fittings include a mounting pipe insertion portion through which the sprinkler head mounting pipe is inserted, a suspension bolt insertion portion through which a suspension bolt is inserted, and a sprinkler head mounting pipe. It is configured such that a tightening portion that also serves as fixing and fixing of the mounting portion is replaced with a tightening portion and a hanging bolt that is hung vertically from the ceiling surface.

[0008]

According to the structure of claim 1, there are provided a suspension bolt which is erected from the ceiling surface, and a fixing metal fitting which has a support portion for supporting the sprinkler head mounting pipe and a mounting portion for mounting the suspension bolt. Since it is provided, the sprinkler head mounting pipe can be fixed even on the exposed ceiling.

According to the second aspect of the present invention, the fixing metal fitting is provided with a mounting pipe insertion portion through which the sprinkler head mounting pipe is inserted, a hanging bolt insertion portion through which a hanging bolt is inserted, and a fixing and mounting portion of the sprinkler head mounting pipe. Since it is composed of a tightening part that also serves as a fixing part, it is possible to fix the sprinkler head mounting pipe and the mounting part at the same time.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. This sprinkler head mounting pipe fixing device (hereinafter referred to as a fixing device) is a suspension bolt 1
And a fixing metal fitting 2 which is attached to the suspension bolt 1 and supports a sprinkler head mounting pipe (hereinafter referred to as a mounting pipe) B. The suspension bolt 1 is a rod-shaped member used when suspending a pipe or the like, and has male screws engraved on the entire surface or both ends thereof. The suspension bolt 1 is vertically hung from the ceiling surface by screwing one end into an insert having a female screw provided on the ceiling surface of the exposed ceiling in accordance with the position where the sprinkler head H 1 is arranged. In addition, it is a matter of course that the hanging bolt 1 can be cut to a desired length and used.

The fixing metal fitting 2 is a supporting portion for supporting the mounting pipe B.
3 and a mounting part 5 for mounting to the hanging bolt 1. The support portion 3 has a cylindrical shape having an inner diameter slightly larger than the outer diameter of the mounting pipe B. In addition, the support part 3 is
It has a set screw part 4 for fixing. This set screw part 4
Is formed by burring the side surface of the supporting portion 3 and engraving a female screw inside thereof. When the set screw 4a is screwed into the set screw portion 4, the tip of the set screw 4a pushes the mounting tube B and presses it against the inner surface of the support portion 3, and when further tightened,
Its tip cuts into the surface of the mounting pipe B. In this way, the mounting pipe B is fixed.

The mounting portion 5 is a plate-like member protruding from the side surface of the supporting portion 3, and has a pair of nipping pieces 6 and 6 with its tip being bifurcated.
Is doing. The spacing between the clamp pieces 6 and 6 is
It is as open as the outside diameter so that 1 can be sandwiched. The mounting portion 5 is mounted so that the holding pieces 6 and 6 hold the hanging bolt 1, and is fixed by tightening the nut N. In addition, the attachment portion 5 is provided with locking portions 6a, 6a by bending the tips of the holding pieces 6, 6 in case of falling off from the hanging bolt 1.

The fixing of the mounting tube B using this device is performed as follows. First, the hanging bolt 1 is screwed to the insert provided at a predetermined position, and a plurality of nuts N are screwed to the appropriate positions of the hanging bolt 1. Next, the fixing metal fitting 2 is attached so that the holding pieces 6, 6 of the mounting portion 5 hold the hanging bolt 1, and the mounting portion 5 is tightened from above and below with the nut N to fix it. Then, the mounting pipe B is inserted into the support portion 3, the height is adjusted, and the mounting screw 4a is screwed into the locking screw portion 4 to fix the mounting pipe B.

Either of the fixing of the mounting portion and the fixing of the mounting pipe may be performed first. Further, the adjustment of the mounting height of the sprinkler head may be performed by loosening the set screw,
You may loosen the nut. Further, considering the stability when fixed, it is efficient and preferable to provide the attachment portion of the fixing metal fitting near the upper end and the lower end of the support portion. Further, the attachment portion may be, for example, in the shape of a tongue, and the hanging bolt insertion hole may be provided in the center thereof.

Next, a second embodiment of the present invention will be described with reference to FIGS.
It will be described based on. This fixing device is a suspension bolt 1
And a fixing bracket 7. The hanging bolt 1 is the same as that shown in the first embodiment. Fixing bracket 7
It is a bilaterally folded sheet of symmetrical sheet material that has a semicircular shape that protrudes in the vicinity of both ends and a large number of circles that project in the center, and that has a roughly gourd-shaped cross section. The large circle part of the gourd type is the mounting pipe insertion part 8 through which the mounting pipe B is inserted, and the small circle part is the hanging bolt insertion part 9 through which the hanging bolt 1 is inserted. The part connecting the large circle and the small circle and the gourd-shaped tip part are the tightening parts 10 and 10 that both fix the mounting tube B and the mounting part 5.

The mounting pipe insertion portion 8 has a cylindrical shape having an inner diameter substantially the same as the outer diameter of the mounting pipe B. If the mounting pipe insertion portion 8 is provided with a semicircular cutout portion 11 as shown in FIG. 5, the fixing metal fitting 2 can be tightened relatively easily, but it is not particularly required. The hanging bolt insertion portion 9 has a cylindrical shape having an inner diameter substantially the same as the outer diameter of the hanging bolt 1. The tightening portions 10 and 10 are for closely contacting plate members facing each other with a slight gap therebetween by screwing screws, and thereby the mounting pipe B and the hanging bolt 1 are pressed from both sides to be fixed.

The fixing of the mounting tube B using this device is performed as follows. First, the suspension bolt 1 is screwed onto the insert provided at a predetermined position. Next, the mounting pipe B is inserted into the mounting pipe insertion portion 8, and the screws of the tightening portions 10 and 10 are lightly tightened to temporarily fix. Next, the suspension bolt 1 is inserted into the suspension bolt insertion portion 9. Then, adjust the height of the mounting pipe B and
Retighten the 0, 10 screws.

Either the insertion and temporary fixing of the mounting tube or the insertion and temporary fixing of the suspension bolt may be performed first. It is also possible to fix the mounting pipe and the mounting portion at once without performing temporary fixing, in which case the fixing work is labor-saving. Further, the fastening portion of the fixing member may be provided not only at the one end and the center but also at the other end, for example. Further, the tightening portion is not limited to the one in which the screw is screwed, but may be one in which the fitting member is fitted. Further, the fixing fitting may be, for example, a stack of two plate materials having large and small semicircular protrusions.

[0019]

The sprinkler head mounting pipe fixing device according to the first aspect of the present invention comprises a suspension bolt installed from the ceiling surface,
A fixing bracket having a supporting portion for supporting the sprinkler head mounting pipe and a mounting portion for mounting to the suspension bolt;
Therefore, the sprinkler head mounting pipe can be fixed even on the exposed ceiling.

According to a second aspect of the present invention, there is provided a sprinkler head mounting pipe fixing device, wherein a fixing metal fitting is fixed to the sprinkler head mounting pipe, a mounting pipe inserting portion through which the sprinkler head mounting pipe is inserted, a hanging bolt inserting portion through which a hanging bolt is inserted, and a sprinkler head mounting pipe. And the tightening portion that also serves as the fixing of the mounting portion, the sprinkler head mounting pipe and the mounting portion can be fixed at the same time.

[Brief description of drawings]

FIG. 1 is a side view showing a first embodiment of the present invention.

FIG. 2 is a plan view of the fixing bracket.

FIG. 3 is a side view showing a second embodiment of the present invention.

FIG. 4 is a plan view of the fixing bracket.

FIG. 5 is a side view showing a case where a cutout portion is provided in the fixing fitting.

FIG. 6 is a perspective view showing a conventional sprinkler head mounting pipe fixing device in unwinding pipe by a steel pipe and an elbow joint.

FIG. 7 is a perspective view showing a sprinkler head mounting pipe fixing device in a conventional unwinding pipe using a flexible pipe.

[Explanation of symbols]

 1 Hanging bolt 2 Fixing bracket (first embodiment) 3 Support part 5 Mounting part 7 Fixing bracket (second embodiment) 8 Mounting pipe insertion part 9 Hanging bolt insertion part 10 Tightening part B Sprinkler head mounting pipe

Claims (2)

[Claims] 1. A suspension bolt vertically extending from a ceiling surface, a support portion for supporting a sprinkler head mounting pipe, and a mounting portion for mounting to the suspension bolt. When the mounting portion is mounted on the suspension bolt, the support portion is A sprinkler head mounting pipe fixing device, comprising: a fixing member formed to support the sprinkler head mounting pipe substantially parallel to the suspension bolt. 2. The fixing metal fitting according to claim 1, wherein a mounting pipe insertion portion through which a sprinkler head mounting pipe is inserted, a hanging bolt insertion portion through which a suspension bolt is inserted, a sprinkler head mounting pipe and a mounting portion are fixed. A sprinkler head mounting pipe fixing device comprising a tightening part that also serves as a tightening part, and a hanging bolt hanging from the ceiling surface instead of the tightening part.