JPH03231688A - Sprinkler type fire extinguisher - Google Patents

Abstract

PURPOSE:To reduce operations in an installation side and make handling convenient in custody and sale by uniting an unit tubular body, sprinkler hard and branch joint. CONSTITUTION:In custody and transportation, a sprinkler head 16 and branch joint 4 do not need a special package since they are protected with a unit tubular body 3 and protective cover 21 mounted on an opening 2 thereof. Further, since the branch joint 4 and sprinkler head 16 connected thereto are coupled with each other into a unit, they are conveniently put on sale. In a piping operation, screws 7, 8 of pipe joint sections 5, 6 extending out of the unit tubular body 3 are connected respectively to water supply pipes 31, 32 and the sprinkler head 16 can be installed in a predetermined position by removing the protective cover 21, so that operations in site are reduced. When a sealing cover 24 is mounted on the opening 2 of the unit tubular body 3, a gap between the base 19 of the sprinkler head 16 and a cut-out hole 23 of a ceiling 22 can be closed to facilitate a sealing operation of the gap.

Description

[Detailed description of the invention] (Industrial application field) This invention relates to sprinkler fire extinguishing equipment.

(Prior art) Sprinkler-based fire extinguishing equipment is very effective in initially extinguishing fires, and is therefore used in buildings that are required to be installed under the Fire Service Act, such as high-rise buildings, theaters, and department stores, as well as in places where fires are likely to occur. It is also desirable to install it in ordinary houses.

Installation of a sprinkler head in sprinkler fire extinguishing equipment is normally performed in the steps illustrated in FIGS. 3 to 6.

That is, as shown in FIG. 3): Connect the T-wall joint 105 to the water supply pipe 103 on the downstream side, screw the short pipe 114 sealed with a plug into the tip of the branch part 106 of the joint 105, and then connect the water supply pipe 104. Install piping sequentially, and use heat insulating material 112 in cold regions.
113 to the T-wall joint 105 and the base 110 and the pipe 10
3. Attach around 104.

Next, as shown in FIG. 4, install the ceiling 101 with a cutout hole 102 corresponding to the position of the short pipe 114, and then as shown in FIG.
is replaced with the sprinkler head 107, the tip 108 of the sprinkler head 107 is exposed to the interior 109 through the cutout hole 102, and a sealing plate 111 is installed to close the base 110 of the sprinkler head 107 and the cutout hole 102 as shown in FIG. , will be screwed onto the base 110.

(Problems to be Solved by the Invention) As described above, in the conventional sprinkler fire extinguishing equipment, the T-wall joint 105 and the sprinkler head 107 are individually connected directly or indirectly to the water supply pipes 103 and 104, respectively, at the equipment site. Therefore, the installation process and man-hours are increased.

Also, in this way, the T-wall joint 105 and the sprinkler head 1
07 are stored and sold separately, so it is necessary to combine items of the same diameter, and it is also necessary to package them individually for transportation.

Furthermore, in cold regions, installing sprinkler heads requires on-site work to insulate the area around the head in a complex manner.

In view of these problems with conventional sprinkler fire extinguishing equipment, the purpose of this invention is to propose a sprinkler fire extinguishing equipment configured to reduce work at the facility site and to be convenient for handling such as storage and sales. There is.

(Means for Solving the Problems) The configuration of the present invention for solving the problems described above is such that the water supply pipe 3
1.32, the front and rear pipe joints 5.6, the branch joint 4 with the branch part 15, the closed sprinkler head 16 attached to the branch part 15, and the threads of the pipe joint part 5.6. 7.8 and tip portion 1 of sprinkler head 16
8 has a unit cylindrical body 3 provided so as to cover the branch joint 9 and the sprinkler head 16 so as to look outward.

Further, the present invention allows the tip portion 1 to be removed from the cutout hole 23 of the ceiling 22.
A sealing cover 24 that closes the gap between the base 19 of the installed sprinkler head 16 and the cutout hole 23 with the part 8 peeking into the interior 33 can be removably attached to the opening 2 of the unit cylinder 3. .

Further, the branch joint 4 of the present invention has a sprinkler head 1
It is composed of a bent pipe formed so as to generate a vortex W3 in the head water supply port 17 of No. 6.

Further, a heat insulating material 20 covering the branch joint 4 and the base 19 of the sprinkler head 16 can be filled into the unit cylinder 3.

Further, in order to protect the tip portion 18 of the sprinkler head 16, a removable protective cover 21 can be attached to the opening 2 of the unit cylinder 3.

(Function) During storage and transportation, the sprinkler head 16 and the branch joint 4 are protected by the unit cylinder body 3 and the protective cover 21- attached to its opening 2, eliminating the need for special packaging. Since the joint 4 and the sprinkler head 16 connected thereto are combined to form a unit, it is convenient for sale.

During piping work, screw the screws 7.8 of the pipe joints 5.6 and 31.32 of the respective water supply pipes 31.
The sprinkler head 16 is installed in place by connecting it to the protective cover 21 that closes the opening 2 and removing it, which requires less on-site work than before.

Then, when the sealing cover 24 is attached to the opening 2 of the unit cylinder 3, the base 19 of the sprinkler head 16
The gap between the ceiling 22 and the cutout hole 23 can be closed, and the gap sealing work becomes easy.

Since the branch joint 4 is constructed of a bent pipe, the vortex W3 generated in the bent pipe by the water flow W1 flowing through the front and rear pipe joints 5.6 directs the water near the head water supply port 17 to the water supply pipe 32 on the downstream side. This prevents the generation of dead water in the vicinity of the head water supply port 17, and water supply pipes can be used as the water supply pipes 31 and 32, reducing the equipment cost.

The invention in which the unit cylinder 3 is filled with the heat insulating material 20 eliminates the need for complicated heat insulating work around the head at the facility site.

(Example) Next, embodiments of the present invention will be described based on the drawings.

FIG. 1 is a longitudinal sectional view of the main part before the head unit 1 is installed, and FIG. 2 is a longitudinal sectional view of the head unit 1 in the installed state.

A branch joint 4 composed of a bent pipe having an approximately figure 7 shape when viewed from the front is attached to a unit cylinder body 3 having an opening 2 at the lower end, and internal threads 7 and 8, which are threads of the left and right pipe joint parts 5 and 6, are externally connected. The bolt 1 is fixed to the interior in a state where it opens to the opening 2, a female thread 9 and a sealing plate 10 extending outward are provided in the opening 2, and the bolt 1 is fixed to the top 11 of the unit cylindrical body 3.
2 has its male thread 13 protruding outside the top 11, and a nut 14 is screwed into the male thread 13.

The head water supply port 17 of a closed type sprinkler head 16 is attached to the branch portion 15 of the branch joint 4, and the unit cylinder 3 is attached so that the tip portion 18 of the sprinkler head 16 projects outward from the opening 12. has a shape that covers the branch joint 4 and the base 19 of the sprinkler head 16 (the part that does not fall when the head is opened), and has a female thread 9.
The inside of the unit cylindrical body 3 is closed by a heat insulating material 20 which is exposed in the vicinity thereof.

A screw 36 is provided at the tip of the cylindrical protective cover 21, and when this male screw 36 is screwed into the female thread 9 of the unit cylinder 3, the tip 18 of the sprinkler head 16 is covered with the protective cover 21. As a result, the head unit 1 illustrated in FIG. 1 is formed.

A ceiling cover 24 for closing the gap between the cutout hole 23 of the ceiling 22 and the base 19 of the sprinkler head 16 when attached to the ceiling 22 shown in FIG. 26, a cylindrical portion 28 having a male thread 27 that can be screwed into the female thread 9 of the unit cylinder 3, and a ceiling 2.
2 is provided with an overhanging piece 29 that can be rotated by contacting the lower surface of the holder.

The female thread 30 of the nut 14 screwed into the bolt 12 is
For example, the lower part to be screwed into the bolt 12 has a left-hand thread, and the remaining upper part has a right-hand thread.

Next, its effect will be explained.

During storage, as shown in Fig. 1, the unit cylinder 3 and the protective cover 21 attached to its opening 2 cover the striped cod head 16, branch joint 4, and heat insulating material 20, making it easy to transport and handle. It is convenient and, in particular, safe against shocks during handling, since the moving parts of the sprinkler head 16 are protected.

Further, since the sprinkler head 16 and the branch joint 4 are stored and sold in an assembled state, there is no possibility that the sprinkler head 16 and the branch joint 4 will be mistakenly traded.

Next, at the fire extinguishing equipment site, the pipe joint part 5 of the branch joint 4 is connected to the water supply pipe 31, and the nut 14 of the unit cylinder body 3 is screwed into a hanging bolt 34 suspended from a ceiling beam (not shown) to adjust the height. After adjustment, the water supply pipe 32 is connected to the pipe joint 6.

Then cover the ceiling 22 with the cutout hole 23 with the protective cover 2.
Attach so that 1 is exposed.

Thus, during construction, the sprinkler head 16 is protected from damage by the protective cover 21.

Then, when the protective cover 21 is removed and the male screw 27 of the ceiling cover 24 is screwed into the female screw 9 of the opening 2 of the unit cylinder 3, the overhang piece 29 will come into contact with the lower surface of the ceiling 22 and the hole 25 will be inserted into the sprinkler head. The gap between the cutout hole 23 of the ceiling 22 and the base 19 is closed by the bottom plate 26 which is fitted onto the base 19 of the ceiling 22 .

Since the branch joint 4 and the base 19 of the sprinkler head 16 are kept warm by the heat insulating material 20 inside the unit cylinder 3,
This embodiment eliminates the need for the conventional, troublesome on-site work of wrapping heat insulating material around a complicatedly shaped head during piping work.

Next, the flow effect of water in the vicinity of the head water supply port 17 by the branch joint 4 made of a bent pipe will be explained.

For example, when you open the faucet 35 connected to the end of the water supply pipe 32 on the downstream side, water flows from the water supply pipe 3I toward the water supply pipe 32, so at the branch joint 4, the water flow W shown in FIG. 2 due to the bent pipe, A water flow w2 is generated from the upstream pipe joint 5 toward the head water supply port 17.

This water flow W attracts water in the head water supply port 17 into the branch joint 4 due to its viscosity, and the water flow W2 directly flows into the head water supply port 17 to generate a vortex flow W.

The vortex w3 agitates the water in the head water supply port 17 and the branch joint, and causes the water to flow to the water distribution pipe 32 on the downstream side, so that the water in the vicinity of the head water supply port 17 does not stagnate. No dead water occurs.

By configuring the branch joint 4 with a bent pipe in this way,
Since the water near the head water supply port 17 flows every time the faucet 35 is opened, there is no problem even if the water supply pipes 31 and 32 are water pipes, and there is no need for dedicated pipes or water tanks for the sprinkler fire extinguishing equipment. This makes it suitable for residential sprinkler fire extinguishing equipment, which requires low cost.

(Effects of the Invention) As described above, according to the present invention, the unit cylinder 3, sprinkler head 16, and branch joint 4 are integrated into a unit, making it extremely convenient for transactions such as storage and sales, and for construction work. ing.

For piping work, connect the water supply pipe 31.32 to the female thread 7.8 of the pipe joint part 5.6 peeking out from the unit cylindrical body 3, remove the protective cover 21, and the sprinkler head 16 will be installed in the specified position. As a result, on-site work is less than before.

Then, when the sealing cover 24 is attached to the opening 2 of the unit cylinder 3, the base 19 of the sprinkler head 16
The gap between the hole 23 and the cutout hole 23 in the ceiling 22 is closed, and the sealing work is easy.

The invention in which the branch joint 4 is formed of a bent pipe prevents the occurrence of dead water near the head water supply port 17 due to the vortex flow W3 generated in the bent pipe, and the sprinkler head 16 is directly connected to the water pipe.
can be connected, so equipment costs are low.

The invention in which the heat insulating material 20 is filled in the unit cylinder 3 eliminates the need for troublesome heat insulating work around the head at the equipment site, and the equipment cost becomes very low.

In the invention in which the protective cover 21 is removably attached to the opening 2 of the unit cylindrical body 3, the sprinkler head 16 can be prevented from being damaged during storage, transportation, and even during construction, and handling becomes easy.

[Brief explanation of drawings]

Fig. 1 is a vertical cross-sectional view of the main part of the head unit before installation, showing an embodiment of the present invention; Fig. 2 is a longitudinal cross-sectional view of the main part of the head unit shown in Fig. 1 in the installed state; Fig. 3; to FIG. 6 are partially vertical front views showing the installation procedure of the conventional device. 1... Head unit 2... Opening 3... Unit cylindrical body 4... Branch joint 5.6... Pipe joint part 7.8... Female thread) 9.30... Female Screw 10・
...Sealing plate 11...Top 12...Bolt 13.27.36...Male thread 14...Nut
15... Branch portion 16... Sprinkler head 17... Head water supply port 18... Tip portion 19.
... Base 20 ... Heat insulating material 21 ... Protective cover 22 ... Ceiling 23 ... Cutout hole 24
... Ceiling cover 25 ... Hole 26
... Bottom plate 28 ... Cylinder part 29 ... Overhanging piece 31.32 ... Water supply pipe 33 ... Indoor 33 ...
・Hanging bolt 35... Faucet Wz ・Water flow 3 ・Eddy current Patent distributor Jinnomi Disaster Prevention Co., Ltd. Agent Masanobu Ichiki Figure 5 Figure 6

Claims (5)

[Claims] (1) A branch joint with a front and rear pipe joint and a branch connected to the water supply pipe, a closed sprinkler head attached to the branch, and a thread on the pipe joint and the tip of the sprinkler head to the outside. A sprinkler fire extinguishing system characterized by having a branching joint and a unit cylindrical body provided so as to cover a sprinkler head. (2) The sealing cover, which closes the gap between the base of the installed sprinkler head whose tip is peeking into the room from the cutout in the ceiling and the cutout, is configured so that it can be removably attached to the opening of the unit cylindrical body. The sprinkler fire extinguishing equipment according to claim 1, characterized in that: (3) The sprinkler fire extinguishing equipment according to claim 1 or 2, wherein the branch joint is constituted by a bent pipe formed to generate a vortex flow in the head water supply port of the sprinkler head. (4) The sprinkler fire extinguishing equipment according to claim 1, 2 or 3, wherein the unit cylinder is filled with a heat insulating material that covers the branch joint and the base of the sprinkler head. (5) Claims 1 and 2, characterized in that the protective cover is configured to be removably attached to the opening of the unit cylindrical body in order to protect the tip portion of the sprinkler head.
Sprinkler fire extinguishing equipment according to 3 or 4.