JP2019150264A - Device for positioning sprinkler head and method for positioning sprinkler head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sprinkler head positioning device capable of reducing labor and time for positioning work when fixing a sprinkler head to a ceiling base material. SOLUTION: A sprinkler head positioning device 1 has a holding portion 10 capable of holding a sprinkler head 3 connected to the end of a flexible pipe F leading to a water supply pipe, and an arm 20 extending outward from the holding portion 10. The arm 20 has a reference surface 21 that can come into contact with the ceiling base material 4. [Selection diagram] Fig. 2

Description

The present invention relates to a sprinkler head positioning device installed on a ceiling or a wall surface.

The sprinkler head is installed on the ceiling or wall in the building. The sprinkler head has a nozzle that can be connected to a pipe installed on the back of the ceiling or the inside of the wall on one end side, and a thermal decomposition section is provided on the other end side. During normal times, the thermal decomposition unit supports a valve body that closes the nozzle. On the extension of the discharge direction of the nozzle, a deflector that scatters the fire extinguishing liquid discharged from the nozzle around is provided.

In such a conventional sprinkler head, when a fire occurs, first, the thermal decomposition section is decomposed by the heat of the fire. The valve body that has been pressed and supported by the thermal decomposition unit loses its supporting force, receives the water pressure in the pipe, and is detached from the valve seat, and falls out of the main body. The water in the pipe is discharged from the open nozzle, and the discharged water collides with the deflector and scatters to the surroundings to extinguish the fire.

The sprinkler head is installed with only the thermal decomposition portion protruding from the ceiling surface or wall surface. The nozzle is connected to a pipe installed on the back of the ceiling, and this pipe is fixed to a ceiling base material such as a field edge or a field edge receiver by a fixing bracket. Patent Documents 1 and 2 describe a fixing structure between a pipe connected to a sprinkler head and a ceiling base material.

When the pipe to which the sprinkler head is connected is fixed to the ceiling base material, the amount of protrusion of the sprinkler head from the ceiling lower surface to the indoor side is adjusted. Specifically, the mounting reference line is displayed on the protective cap attached to the sprinkler head, and the position of the sprinkler head is adjusted so that the height position of the mounting reference line and the ceiling lower surface matches, and the piping is placed under the ceiling. Secure to the material.

However, since the ceiling board is not installed when the pipe to which the sprinkler head is connected is fixed to the ceiling base material, the operator should consider the installation standard below the lower surface of the ceiling base material in consideration of the thickness of the ceiling board. The work is done by aligning the lines. At that time, using a ruler, measure the distance of the ceiling base material plus the thickness of the ceiling board. Make a reference to the distance between the reference line of the protective cap and the lower surface of the ceiling base material, and operate the fixing bracket to fix the pipe to the ceiling base material. After fixing, the distance between the mounting reference line and the lower surface of the ceiling base material is again measured with a ruler and fine adjustment is performed.

In particular, apartment buildings such as condominiums pay attention to the amount of protrusion of the sprinkler head from the ceiling, so the positioning work is carefully performed so that the amount of protrusion of the indoor sprinkler head is uniform. The work was very time consuming and time consuming.

JP-A-6-261958 JP-A-7-151269

In view of the above problems, an object of the present invention is to provide a sprinkler head positioning device that can reduce the time and effort of positioning when fixing the sprinkler head to a ceiling base material.

In order to achieve the above object, the present invention provides the following sprinkler head positioning device.
That is, a holding part that can hold the sprinkler head connected to the end of the flexible pipe that leads to the water supply pipe and an arm that extends outward from the holding part are installed, and the arm can be in contact with the ceiling base material Has a surface.

  According to this, the fixing operation can be performed in a state where the sprinkler head is held by the sprinkler head positioning device (hereinafter referred to as a positioning device). More specifically, it is possible to maintain a state in which the reference surface of the positioning device is in contact with the ceiling base material with one hand and fix the flexible pipe to the ceiling base material with the other hand. In the past, positioning work was performed while measuring the positional relationship between the position of the ceiling base material and the sprinkler head mounting reference line with a ruler, but using a positioning device, the positional relationship was confirmed using the ruler. Even without this, the sprinkler head can be installed at a predetermined position.

In the positioning device, the holding portion can be formed in a cylindrical shape to accommodate the internal sprinkler head. The arm can be installed on the outer surface of the holding unit, and more specifically, can be configured to intersect with the outer peripheral surface of the holding unit and extend outward. When two or more arms are provided and brought into contact with a plurality of ceiling base materials, positioning accuracy is improved.

The ceiling base material is laminated in the order of the field edge and the field edge receiver from the floor side, and is suspended from the upper part of the room by suspension bolts. The reference surface of the arm is the lower surface of the field edge (the surface facing the floor) ).

A method of positioning the sprinkler head with respect to the ceiling base material using the positioning apparatus having the above structure will be described below. The sprinkler head attached to the tip of the flexible pipe is projected to the floor side from the ceiling base material. Next, the sprinkler head is accommodated in the cylindrical portion of the positioning device. Subsequently, the positioning device is moved in the direction of the ceiling base material, and the reference surface of the arm is brought into contact with the ceiling base material. In this state, the flexible pipe is fixed to the ceiling base material with a fixing bracket. After fixing, the positioning device is moved away from the ceiling base material and removed from the sprinkler head.

By using the above positioning device, the positioning operation can be performed efficiently. Furthermore, by using the positioning device, there is no accuracy variation or difference due to differences in workers, and the quality of the positioning operation can be made uniform.

It is the positioning device of this invention, (a) is a top view, (b) is sectional drawing. Sectional drawing of the state which hold | maintained the sprinkler head in the positioning device of this invention. The perspective view of flexible piping and a ceiling base material. The sprinkler head positioning procedure using the positioning device of the present invention is shown. (A) is a state before holding the sprinkler head, and (b) is when the flexible pipe is fixed after holding the sprinkler head. The state, (c) shows the state after the work is finished.

  The positioning device 1 of the present invention includes a holding unit 10 and an arm 20.

The holding part 10 has a cylindrical shape capable of holding the sprinkler head 3 inside. The upper end of the holding unit 10 is open, and the sprinkler head 3 can be taken in and out. A bottom surface 11 is installed at the lower end, and a small hole 12 is provided at the center.

Two openings 13 are provided on the side surface of the holding unit 10. The opening 13 extends to the bottom surface 11, and the state of the sprinkler head 3 accommodated therein can be visually confirmed.

The arm 20 is installed on the side surface of the holding unit 10. In this embodiment, two arms 20 are installed, and their lengths are substantially the same. The arm 20 has an elongated plate shape, is provided so as to intersect with the outer peripheral surface of the holding portion 10, and extends outward. The upper surface of the arm 20 becomes the reference surface 21 that comes into contact with the ceiling base material 4 (the edge 41).

The two arms 20 are installed on a line B that intersects the central axis A of the holding unit 10. The total length of the two arms 20 and 20 is longer than the installation interval of the ceiling base material 4 (field edge 41) with which the reference surface 21 is in contact. By doing so, the two arms 20 can be brought into contact with the two ceiling base materials 4 (field edges 41), and the positioning accuracy is improved.

As shown in FIG. 3, the sprinkler head 3 is installed at the end of a flexible pipe F having one end connected to a water supply pipe (not shown). The flexible pipe F is made of metal or resin. The sprinkler head 3 is equipped with a protective cap 31 during construction, and is protected from external force and dust. An attachment reference display 32 is provided on the outer peripheral surface of the protective cap 31. The line 33 of the display 32 corresponds to the position of the lower surface of the ceiling board C.

As shown in FIGS. 2 and 3, the ceiling base material 4 is laminated in such a manner that it crosses in order of a field edge 41 and a field edge receiver 42 from the floor surface side, and is suspended in the upper part of the room by a suspension bolt 43. The field edge 41 and the field edge receiver 42 are long metal materials, and the sprinkler head 3 is attached to a square bar 44 arranged so as to intersect with the field edge receiver 42 by a fixing bracket 45.

The fixing bracket 45 is configured by bending a metal plate material into a U shape, and has a bowl-shaped lacking portion 46 through which the square bar 44 can be inserted at both ends. The square bar 44 is inserted through the lacking portion 46 and the flexible pipe F is accommodated inside the fixing bracket 45. A screw 47 is installed at the curved portion of the fixing bracket 45, and when the screw 47 is rotated to move the tip of the screw 47 toward the flexible pipe F, the flexible pipe F is pressed against the square bar 44.

As shown in FIG. 3, the plurality of field edges 41 are installed at predetermined intervals, and field edge receivers 42 are installed on the field edges 41 at predetermined intervals so as to intersect with the field edges 41. The ceiling board C is fixedly installed on the lower surface of the field edge 41 with screws or the like.

There are various thicknesses of the ceiling board C, but the positioning device 1 of the present invention has a structure in which the thickness of the ceiling board C corresponds to 9.5 mm. More specifically, the sprinkler head 3 is accommodated in the holding unit 10 so that the bottom surface 34 of the protective cap 31 is in contact with the bottom surface of the holding unit 10. When the field edge 41 and the reference surface 21 are brought into contact with each other in this state, the dimensions of the positioning device 1 are set so that the lower surface of the ceiling board C is disposed at the position of the line 33 of the protective cap 31.

The positioning device 1 can also be added with a mechanism for adjusting the position of the arm 20 or the position of the bottom surface 11 so that it can cope with the ceiling board C having different thicknesses.

Next, a procedure for positioning the sprinkler head using the positioning device of the present invention will be described.

The sprinkler head 3 is installed in the upper part of the room while being connected to the end of the flexible pipe F. Thereafter, the ceiling base material 4 is assembled, and the sprinkler head 3 is installed at a predetermined position.

A square bar 44 is attached on the edge receiver 42 to the position where the sprinkler head 3 is installed. Connection between the square bar 44 and the flexible pipe F is performed by a fixing metal fitting 45. The flexible pipe F may be temporarily fixed to the installation position of the sprinkler head 3 before the positioning operation. At this time, the sprinkler head 3 is temporarily fixed by projecting to the floor surface side from the lower surface of the field edge 41 (see FIG. 4A).

Next, the sprinkler head 3 is accommodated in the holding portion 10 of the positioning device 1. At this time, it is confirmed from the opening 13 that the bottom surface of the protective cap 31 is in contact with the bottom surface 11 of the holding unit 10. From this state, the holding unit 10 is moved in the direction of the ceiling base material 4, and the reference surface 21 of the arm 20 is brought into contact with the lower surface of the field edge 41 (surface facing the floor surface). At this time, as shown in FIG. 4B, each arm 20 is brought into contact with a plurality of field edges 41 arranged in the vicinity of the sprinkler head 3.

While maintaining this state, the flexible pipe F is fixedly installed on the square bar 44 by tightening the screws of the fixing bracket 45. Finally, the positioning device 1 is removed from the sprinkler head 3 to complete the operation. Thereafter, when the ceiling board C is constructed, the line 33 of the protective cap 31 and the lower surface of the ceiling board C are arranged at the same height as shown in FIG.

1 Positioning device
3 Sprinkler head
4 Ceiling base materials
10 Holding part
11, 34 Bottom
12 Small hole
13 opening
20 arms
21 Reference plane
31 Protective cap
32 Installation reference display
33 lines
41 Field edge
42 Field Margin
43 Hanging bolt
44 Square bar 45 Mounting bracket

Claims (5)

A holding part capable of holding a sprinkler head connected to the end of the flexible pipe leading to the water supply pipe;
An arm extending outward from the holding part is installed,
An apparatus for positioning a sprinkler head, wherein the arm has a reference surface that can contact the ceiling base material. The sprinkler head positioning device according to claim 1, wherein the holding portion is cylindrical, and the sprinkler head is accommodated therein. The sprinkler head positioning device according to claim 1 or 2, wherein the arm is installed on an outer surface of the holding portion. The ceiling base material is laminated by crossing in order of a field edge and a field edge receiver from the floor surface side, is suspended from the interior upper part by a suspension bolt, and the reference surface of the arm is in contact with the field edge. Item 4. The sprinkler head positioning device according to any one of Items 3 to 4. A method for positioning a sprinkler head with respect to a ceiling base material using the sprinkler head positioning device according to claim 1,
The sprinkler head attached to the tip of the flexible pipe is accommodated in the cylinder part,
With the reference surface of the arm in contact with the ceiling base material,
A sprinkler head positioning method characterized by fixing flexible piping to a ceiling base material with a fixing bracket.

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