JP3012145U - Fire detection operation and piping system of sprinkler equipment - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] For piping of sprinkler equipment near the slab,
Even if there is a sprinkling obstacle in the middle of the fire detection device, the pipe will be lowered below it and the pipe will be automatically opened to extinguish the fire reliably. A fire detection device is provided in a pipe 1 near a slab of a conventional closed-type sprinkler facility, and an open-type sprinkler head 3 is installed by a handle 4 that opens or closes two valves that can automatically open the pipe. It is useful for simplifying the head, because it does not need to be operated reliably and water spraying obstacles due to ducts and other piping need not be taken into consideration.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention installs the fire detection device of the sprinkler equipment near the floor slab on the upper floor (hereinafter referred to as “slab”) in the case where there is no ceiling so that ducts and other pipes installed in the upper space can be installed. It is possible to lower the head under the sprinkler head's sprinkling obstacle, which not only solves the sprinkling obstacle, but also eliminates the need for a head installed above the obstacle and reduces the number of heads. It is about the system.

[0002]

[Prior art]

 If a general closed type sprinkler is installed on the ceiling part, the heat of fire is collected in the ceiling part and the sensing part of the head is melted and water is automatically sprayed from the head. In the case of a slab directly without a ceiling, ducts and other pipes are often installed in the upper part, which is an obstacle to watering. If the distance between the slab and the location of the head to be installed is long in a rack-type warehouse, stage, etc., the temperature of the initial fire will accumulate in the slab, so it will take time to automatically detect and effectively spray water. Therefore, it is necessary to manually open the open-type sprinkler equipment, install double heads on the top and bottom, and install heat collecting plates around the heads.

[0003]

[Problems to be solved by the device]

 By installing the fire detection device of the sprinkler head on the slab surface, the fire can be detected with certainty and early, and the head can lower the lower part of the sprinkling obstacle and the piping as necessary, eliminating the sprinkling obstacle. This eliminates the need for heads on slabs, and therefore attempts to solve the aforementioned drawbacks.

[0004]

[Means for Solving the Problems]

 The present invention installs a fire detection device on a slab or piping, and can automatically open it by linking it with a pipe opening / closing device installed on a sprinkler pipe near the slab, and freely select the length of the falling pipe. The problem is solved by a fire detection activation and piping system that can.

[0005]

[Work]

 The fire detection device automatically detects a phenomenon such as heat, smoke, or flame from a fire, for example, a thermal fuse, a smoke detector, or a flame detector. The opening / closing device for opening the pipe is a device provided with a valve in the pipe. For example, it is a device that can be opened by one operation such as a butterfly valve or a ball cock. Is automatically opened and water is sprayed from the opening head. Since the detection device is near the slab, it can detect fire signals early, so there is no performance problem even if the pipe is lowered downwards, and the entire floor surface can be covered, so no head is required on the slab surface.

[0006]

【Example】

 An embodiment will be described below with reference to the accompanying drawings. 1 is piping for sprinkler equipment. 2 is a butterfly valve or a ball cock valve. 3 is an open type sprinkler head. Reference numeral 4 denotes a handle for closing or opening the butterfly valve or the ball cock valve. By keeping this handle in a normally closed state, water for extinguishing fire is blocked at this portion.

Reference numeral 5 is a stop hook for keeping the handle closed, 6 is a temperature fuse, and one is fixed while the handle is bonded with the temperature fuse, and the other is hooked on the handle to connect the pipe. Keep it open.

Reference numeral 4'is a state in which the thermal fuse is activated, and the handle is horizontal, whereby the pipe of the sprinkler equipment is opened and water is sprayed from the open head of 3. In addition, the thermal fuse connecting the part 5 melts.

[0009]

[Effects of the Invention] As described above, by providing a system in which the fire detection device of the sprinkler equipment of the present invention is installed and operated near the slab, the length of the pipe from the slab can be changed freely. Therefore, it is possible to eliminate the sprinkling obstacle of the head, and since the sprinkling obstacle is eliminated, the head to be installed on the slab is not necessary.

[00010]

[Brief description of drawings]

FIG. 1 is a side view of an embodiment showing a closed state of the pipe of the present invention.

[Fig. 2] A drawing of the automatic fire detection device required for the operation of this piping.

[Fig. 3] A side view of an embodiment showing the open pipe of the present invention.

FIG. 4 is a side view showing an embodiment of the present invention with the piping open.

[Explanation of symbols]

 1 Pipe for sprinkler equipment 2 Butterfly valve or ball cock valve 3 Head of open type sprinkler equipment 4 Handle for opening or closing valve 2 5 Hook for keeping valve closed 6 Thermal fuse at fire detector

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] November 18, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Claims for utility model registration] A switchgear is installed in the middle of the ceiling piping of the sprinkler equipment, and equipped with a sensing device that can automatically detect the heat, smoke, flames, etc. of a fire and activate the switchgear automatically. And
A fire extinguishing system with an open type sprinkler head at the bottom of the pipe, where the sensing device is installed below the floor slab on the upper floor when the sensing device is not installed on the ceiling, the open type sprinkler head. Related to the combination of.

Claims (1)

[Scope of utility model registration request] 1. A switchgear is provided in the middle of a ceiling upper pipe of a sprinkler facility, and a detection device is provided which can automatically detect heat, smoke, flames, etc. of a fire to automatically operate the switchgear. The fire extinguishing system has an open-type sprinkler head at the bottom of the pipe, and is characterized by being installed under the floor slab on the upper floor when the sensor is not installed at the ceiling.