JPH025801Y2 - - Google Patents

Description

[Detailed description of the invention] This invention mainly relates to a short pipe with a mounting socket for a sprinkler head in sprinkler fire extinguishing equipment.

BACKGROUND OF THE INVENTION Conventionally, the piping (generally referred to as an unwinding pipe) of a head attachment part of a sprinkler fire extinguishing system is constructed as shown in FIG. Such piping work is generally carried out by on-site fitting in the ceiling, and the work procedure is to first screw both ends of the short pipe 4 and attach it to the T-shaped joint 2 of the water pipe 1. Next, the elbow 3, short pipe 5, elbow 31, short pipe 6, and socket 7 are installed in order, and the short pipes 4, 5, and 6 are connected by visual measurement or dimensioning and thread cutting, and then the ceiling 9 is connected. The sprinkler head 8 is placed at a predetermined location.

Fine adjustment of the final vertical movement of the head 8 is made using the short tube 6.
This is generally done by actual measurements when cutting a 5.5m length tube into a predetermined length.

Such conventional piping work is performed in a narrow attic space, resulting in problems such as poor work efficiency and high costs.

In order to reduce these work hours, it has been proposed to use universal joints for the elbows 3 and 31 in Figure 1, or to use flexible pipes and make the main surface part in advance at a factory and then install it on site. However, all of them are expensive and have not been put into practical use except for special purposes.

This invention solves the above-mentioned drawbacks, and will be described in detail below with reference to the drawings.

FIG. 2 shows a short pipe with a sprinkler head mounting socket showing an embodiment of this invention, and FIG. 3 shows an example of its installation.

In Fig. 2, reference numeral 11 denotes a main body short tube, both ends 111, 111 of which are made small in diameter by drawing, and female threads for attaching a sprinkler head are provided at both ends 111, 111 of the small diameter. There is.

This main body short pipe 11 is prefabricated at a factory, and its length L is preliminarily set to several types (for example, 30 cm, 50 cm,
cm, 70cm). Such a short pipe 11 with a mounting socket for a sprinkler head is installed in the field as shown at 12 in FIG. That is, the short pipes 4, 5 and the elbows 3, 31 are connected in the same manner as in the conventional example, but the main short pipe 11 is used for the portion between the elbow 31 and the sprinkler head 8. When using this part, first consider the distance h from the ceiling surface 9.
, and select a short tube 11 with a length that allows two tubes with the distance h to be taken. After that, it is necessary to cut it to a length suitable for the distance h (for example, the positions shown in FIG. 2A and B), thread it, connect one end to the elbow 31, and attach the sprinkler head 8 to the other end. The other separated one is used in the same way.

As mentioned above, the short pipe 11 with a mounting socket of the sprinkler head of this invention is used for a part of the unwinding pipe, and is used in the part that requires the most accuracy when adjusting the length, and has a different diameter from the short pipe 6. Because it has a configuration that combines socket 7,
Both the number of parts and the number of working man-hours are reduced, piping work can be done quickly and accurately even in a narrow attic, and the main body short pipe 11 can be mass-produced in advance at a factory, making it inexpensive.

That is, (1) It can be used independently in conventional construction methods without the need for a reducer, thread cutting, or tightening.

(2) Great labor-saving effect when used in combination with S-type joint.

(3) Since there are two parts in one, packaging, transportation, handling at the work site, etc. are much more efficient.

(4) Moreover, cutting work for length adjustment does not increase.

(5) Furthermore, since there are fewer joints after piping, there is less frictional resistance from running water and it is aesthetically pleasing.

It has the following advantages. A product like this has never existed before.

[Brief explanation of the drawing]

Figure 1 is a front view showing an example of conventional piping, Figure 2 is a front view of a short pipe with a socket for attaching a sprinkler head of this invention, and Figure 3 is an installation state of a socket using the short pipe of this invention. A front view is shown, respectively. 3, 31...Elbow, 8...Sprinkler head, 11...Main body short pipe, 111...Small diameter portion.

Claims (1)

[Scope of utility model registration request] 1. A short tube with a sprinkler head attachment socket, characterized in that it consists of a short tube whose both ends are made small in diameter by drawing, and the small diameter portions are provided with internal threads for attaching the sprinkler head.