JP3270721B2 - Mounting member for sprinkler head - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprinkler head mounting member.

[0002]

2. Description of the Related Art In general, when piping sprinkler equipment to the ceiling of a building, a method of connecting a sprinkler pipe made of a steel pipe and a sprinkler head by a flexible pipe made of metal such as stainless steel is adopted. In this case, it is necessary to finally fix the sprinkler head to the ceiling plate holding member.

For example, as described in Japanese Patent Application Laid-Open No. 6-337082, a sprinkler head mounting pipe is fixed to a supporting member provided between ceiling plate holding members via a fixing bracket, and the sprinkler head mounting pipe is fixed. Are connected to a sprinkler head and a metal flexible tube, respectively.

[0004]

However, in recent years, the use of synthetic resin pipes as sprinkler pipes has been recognized, and when the use of synthetic resin sprinkler pipes in the above-described method has been attempted, metal sprinkler head mounting pipes have been proposed. Is connected to the synthetic resin sprinkler pipe, and the synthetic resin sprinkler pipe may be damaged and water may leak from the connection portion. For this reason, the metal sprinkler head mounting pipe and the synthetic resin sprinkler pipe must be newly connected via a valve socket, increasing the number of parts and increasing the number of connection points, resulting in an increase in cost. However, there is a problem that the construction is complicated.

The present invention has been made in view of the above problems, and connects a metal sprinkler head to a synthetic resin sprinkler pipe without increasing the cost and without reducing the workability. A sprinkler head mounting member is provided.

[0006]

SUMMARY OF THE INVENTION The present invention provides a synthetic resin pipe having a connection portion to which a synthetic resin sprinkler pipe can be connected, and a male screw of a sprinkler head embedded in the synthetic resin pipe and capable of being screwed therein. And a metal pipe formed with a female thread, wherein a flat portion is formed continuously over the outer peripheral surface of the synthetic resin pipe excluding the connecting portion and the outer peripheral surface of the metal pipe.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a sprinkler head mounting member according to the present invention. The sprinkler head mounting member 1 includes a synthetic resin pipe 2 and a metal pipe 3 embedded in the synthetic resin pipe 2. The outer peripheral surface on one end side of the synthetic resin pipe 2 is formed on a cylindrical surface 21 as a connecting portion connectable to a synthetic resin sprinkler pipe (not shown), and the outer peripheral surface on the other end side is a prismatic surface. 22. On the other hand, the metal pipe 3 is formed with a female screw 3a into which a male screw of a metal sprinkler head (not shown) can be screwed, and the outer peripheral surface thereof is formed on the prism surface 31 (FIG. 2).
reference).

When the metal tube 3 is embedded in the synthetic resin tube 2 to form the sprinkler head mounting member 1, one prismatic surface 22 of the synthetic resin tube 2 and one prismatic surface 3 of the metal tube 3 are formed.
1 so as to form a continuous plane portion 11.

Note that grooves 22a and 31a are formed in the prism surface 22 of the synthetic resin tube 2 and the prism surface 31 of the metal tube 3, respectively.

As a result, a synthetic resin sprinkler pipe can be directly connected to the synthetic resin pipe 2 of the sprinkler head mounting member 1, and a metal sprinkler head can be directly connected to the metal pipe 3, respectively. The use does not cause an increase in cost and does not lower the workability.

Moreover, since the sprinkler head mounting member 1 is formed with the flat portion 11 composed of one prismatic surface 22 of the synthetic resin tube 2 and one prismatic surface 31 of the metal tube 3, the flat portion 11 is formed. Moving the sprinkler head mounting member 1 up and down along one wall surface of the support member 5 described below to position the metal sprinkler head connected to the sprinkler head mounting member 1 within the length range of And piping work can be easily performed.

In the above-described embodiment, the synthetic resin pipe 2 constituting the sprinkler head mounting member 1 is used.
A cylindrical surface 21 as a connecting portion is formed on one end side of the connecting member, and the cylindrical surface 21 is connected to a synthetic resin sprinkler pipe. However, depending on the disposition position of the sprinkler head mounting member 1, A pipe joint such as an elbow, a cheese, a socket, a reducer, or the like may be formed as a connection part on one end side, and a synthetic resin sprinkler pipe may be connected to the pipe joint.

The above-described sprinkler head mounting member 1 is fixed to a support member 5 installed between ceiling plate holding members (not shown) behind the ceiling via a fixing member 6 shown in FIGS. . This fixing member 6
Has a peripheral wall 61 which can be surrounded along the prism surface 22 of the synthetic resin tube 2 and the prism surface 31 of the metal tube 3 which constitute the sprinkler head mounting member 1, and a pair of opposing peripheral walls 6.
Notch opening 61a that fits and holds support member 5
Are formed, and a tightening screw 62 is screwed to another peripheral wall 61.

The case where the sprinkler head mounting member 1 is fixed to the support member 5 using such a fixing member 6 will be described.
Is fitted into the fixing member 6, and the flat portion 11 of the sprinkler head mounting member 1 is brought into contact with one wall surface of the support member 1 and is temporarily held. Next, the support member 5 is fitted into the cutout opening 61 a of the fixing member 6, and the front end thereof is brought into contact with the support member 5 by tightening the tightening screw 62. As a result, the sprinkler head mounting member 1 can be pulled through the fixing member 6 in a direction in which the sprinkler head mounting member 1 comes into close contact with the support member 5, and the sprinkler head mounting member 1 can be sandwiched and fixed to the support member 5.

In the embodiment of the sprinkler head mounting member 1 described above, the cylindrical surface 21 (connection portion) is used.
And the synthetic resin tube 2 having the prismatic surface 22
a and the metal tube 3 having the prismatic surface 31 embedded therein, as shown in FIG. 5, a nut 4 is attached to one end of the metal tube 3 as shown in FIG.
And the female screw 4a of the nut 4 can be used instead of directly forming the female screw 3a on the metal tube 3.
Further, in this embodiment, a cylindrical surface 21 as a connecting portion is formed at one end of the synthetic resin pipe 2, and a cylindrical portion 23 having a larger diameter than the cylindrical surface 21 and a cylindrical portion 23 at the other end. An outer peripheral surface having a substantially D-shaped cross section formed by a flat portion 24 formed by cutting a part thereof is formed.
Can be brought into contact with one wall surface of the support member 5.

In this case, the plane portion 24 formed on the synthetic resin tube 2 and one prismatic surface 31 of the metal tube 3 are set so as to form a continuous plane.

Also in this embodiment, a sprinkler piping made of synthetic resin and a metal sprinkler head can be directly connected to the sprinkler head mounting member 1 respectively. Therefore, the cost is not increased by using the valve socket, and the workability is not reduced. In addition, the flat portion 24 of the synthetic resin pipe 2 constituting the sprinkler head mounting member 1
The metal sprinkler head can be positioned along one wall surface of the support member 5 within the length range.

[0019]

As described above, according to the present invention, a synthetic resin pipe having a connection portion to which a synthetic resin sprinkler pipe can be connected, and a male screw of a sprinkler head embedded in the synthetic resin pipe and screwed. And a metal tube formed with a possible female screw, and a flat portion that is continuous over the outer peripheral surface and the outer peripheral surface of the metal tube except for the connection portion of the synthetic resin tube is formed. The metal sprinkler heads can be directly connected to each other, can be easily connected without increasing the cost, and can be positioned within the length range of the flat portion.

[Brief description of the drawings]

FIG. 1 is a sectional view and a front view showing an embodiment of a sprinkler head mounting member of the present invention.

FIG. 2 is a cross-sectional view and a front view of a metal tube constituting the sprinkler head mounting member of FIG. 1;

FIG. 3 is a perspective view showing a state in which the sprinkler head mounting member shown in FIG. 1 is fixed to a support member via a fixing member.

4 is a side view showing a state where the sprinkler head mounting member shown in FIG. 3 is fixed to a support member via a fixing member.

FIG. 5 is a sectional view, a front view, and a rear view showing another embodiment of the sprinkler head mounting member of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sprinkler attachment member 11 Flat part 2 Synthetic resin pipe 21 Connection part (cylindrical surface) 22 Prismatic surface 23 Cylindrical part 24 Flat part 3 Metal tube 3a Female screw 31 Rectangular cylindrical surface 4 Nut 4a Female screw

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shiro Kanada 6-8-4 Nakatsu, Kita-ku, Osaka Inside Nishihara Sanitary Works Osaka Co., Ltd. (72) Inventor Masanobu Arai 6-8 Nakatsu, Kita-ku, Osaka No. 4 Nishihara Sanitary Industry Co., Ltd. Osaka store (56) References JP-A-7-317965 (JP, A) JP-A-60-10662 (JP, U) JP-B 53-22685 (JP, B1) Tokiko Hei 2-46828 (JP, B2) (58) Field surveyed (Int. Cl. ⁷ , DB name) F16L 9/14

Claims (2)

(57) [Claims] (1) Sprinkler piping made of synthetic resin can be connected
Plastic tube with a functional connection part , and a male screw of a sprinkler head embedded in the synthetic resin tube and capable of screwing
A metal tube formed with an internal thread , and the synthetic resin
Continuously connect to the outer peripheral surface of the metal
A mounting member for a sprinkler head, wherein a flat portion is formed . 2. The outer peripheral surface of the synthetic resin tube excluding the connection portion.
And the outer peripheral surface of the metal tube are each formed in a prismatic surface.
The sprinkler head mounting member according to claim 1 , wherein a continuous plane portion is formed by the prism surfaces .