JPH0733363U - Sprinkler-head adapter - Google Patents

Abstract

(57) [Summary] [Purpose] The main pipe and sprinkler head can be connected easily in a short time without preparing extra material. [Structure] A sprinkler head adapter 7 for mounting and fixing the sprinkler head 1 is directly connected to a threaded joint 74 provided on the side surface of the pipe of the sprinkler head adapter 7 and another adjacent sprinkler head adapter whose installation position is known in advance by branch piping. To do.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sprinkler head adapter for attaching a sprinkler head used for fire extinguishing and fixing it to a beam or girder on the ceiling surface of a building, and particularly to facilitating piping during sprinkler installation.

[0002]

[Prior art]

 The sprinkler equipment is one that fixes a sprinkler head connected to a pipe for sending water to the roof or ceiling surface of a building, work, etc., and discharges water while diffusing water in the event of a fire. Yes, especially very effective for initial fire extinguishing.

This sprinkler equipment uses a closed-type sprinkler head for ordinary buildings, etc., and always fills and pressurizes all of the piping with water, and the sprinkler head is activated by the heat of a fire and exits. A method is used to immediately extinguish water by extinguishing water as soon as it opens. In order to ensure fire extinguishing by this water discharge, the installation position of the sprinkler head is determined by the structure and type of the fire prevention target, and the contents stored in the room. For example, the radius is 1.7 m or less for underground malls and the radius for fireproof buildings It is set as the center point of each circle drawn so that the inside of the building is completely covered with a circle of 2.3 m or less. Therefore, for example, as shown in the layout diagram of FIG. 3, it is necessary to install a number of sprinkler heads 1 according to the area of the area defined by pillars 2 in the building at predetermined intervals.

When connecting the plurality of sprinkler heads 1 to the main pipe 3 connected to the water flow detecting device as described above, normally, as shown in the perspective views of the branch portions of the branch pipes of FIGS. 1 or 2 branch joints 4 are attached to the pipe 3, and the sprinkler head 1 is screwed in and attached as shown in the side view showing the branch pipe and the sprinkler head in FIG. The sprinkler-head adapter 7 fixed to the same with a fixture 6 and the branch joint 4 are connected by a flexible tube 8 which is a branch pipe or a steel pipe. In this way, water is filled and pressurized from one location of the main pipe 3 to a plurality of locations, for example, nine sprinkler heads 1.

[0005]

[Problems to be solved by the device]

 When connecting one place of the main pipe 3 and a plurality of sprinkler heads 1 as described above, the main pipe 3 is installed with respect to a plurality of installation positions of the sprinkler head 1 which are determined by the structure of the room and the items stored inside. The positions are not always symmetrical as shown in FIG. 3, and the distance from the branch joint 4 attached to the main pipe 3 to the sprinkler head 1 is often different. Therefore, when installing the sprinkler head 1, it is necessary to prepare a large number of flexible tubes 8 and steel pipes connecting the main pipe 3 and each sprinkler head 1 having different lengths. It has the disadvantages that it is not easy to manage and it is necessary to prepare an extra flexible tube.

Further, as shown in FIG. 5, for example, when nine sprinkler heads 1 are connected to one place of the main pipe 3, two branch joints 4 are attached to the main pipe 3 and each branch joint 4 is attached. The flexible tube 8 is attached by screwing it in, but since the flexible tube 8 is pulled out radially from the branch fittings 4 mounted above and below, the workability of the work of mounting the flexible tube 8 is poor, and the branch fitting 4 However, there is a disadvantage that it takes a lot of labor and time to mount the flexible tube 8 on the above.

Further, when the predesigned partition for each floor or room of the fire protection target is changed or a new partition is provided, the sprinkler head 1 is added to the part where the partition is changed. Although it is necessary to provide it, in this case as well, it was necessary to stretch the branch pipe from the branch joint attached to the distant main pipe 3 to the sprinkler head 1 added, and the construction was not easy.

The present invention has been made in order to solve the above disadvantages, and a sprinkler that can easily connect a main pipe and a sprinkler head in a short time without using extra materials. The purpose is to obtain a head adapter.

[0009]

[Means for Solving the Problems]

 The sprinkler head adapter according to the present invention is mounted by screwing in a sprinkler head used for fire extinguishing, and a pipe joint is attached to the side surface of the sprinkler head adapter for fixing to a beam or girder on the ceiling surface of a building. It is characterized by being provided.

[0010]

[Action]

 In this invention, the sprinkler-head adapter for mounting and fixing the sprinkler head is directly connected by a branch pipe to a pipe joint provided on the side surface of the pipe of the sprinkler-head adapter and another adjacent sprinkler-head adapter whose installation position is known in advance. To do.

[0011]

【Example】

 FIG. 1 is a sectional view showing an embodiment of the present invention. As shown in the figure, the sprinkler head adapter 7 is composed of a pipe having a nominal diameter of 25 A, for example, and a threaded joint 72 provided at the tip of the pipe 71 and a screw joint provided at the rear end of the pipe 71. It has a joint 73 and a screw joint 74 provided orthogonal to the intermediate side surface of the tubular body 71. The threaded joint 72 at the tip is a joint to which the sprinkler head 1 is screwed and attached, and has, for example, a taper female thread for a pipe having a nominal diameter PT1 / 2. The threaded joint 73 at the rear end is a joint for connecting a flexible tube 8 which is a branch pipe connected to the branch joint 4 of the main pipe 3 as shown in FIG. 4, and is, for example, a taper for a pipe having a nominal diameter PT1. Has a male screw. Further, a threaded joint 74 provided on the intermediate side surface of the pipe body is a joint for connecting the flexible tube 8 connected to another adjacent spliner head 1, and like the threaded joint 73 at the rear end, for example, It has a taper male thread for pipes with a nominal diameter of PT1.

By using the sprinkler-head adapter 7 configured as described above, for example, as shown in the layout diagram of the sprinkler-head of FIG. 2, nine sprinklers are provided in an area defined by pillars 2 in a building. When installing the head 1, first fix the sprinkler heads 1a to 1i attached to the sprinkler-head adapter 7 at predetermined positions. Next, as shown in the perspective view of the branching portion of FIG. 4, one connecting end of the flexible tube 8 is attached to each threaded joint of the branch joint 4 having five threaded joints attached to the main pipe 3. . Then, the other end of each flexible tube 8 is connected to the sprinkler head 1a provided with the sprinkler head 1a provided at the position closest to the branch joint 4, and the spliner head adapter 7 is provided at a predetermined distance on the outer circumference. One of the wrinkler heads 1b to 1i is placed and connected to, for example, a sprinkler head adapter 7 to which the sprinkler heads 1b, 1d, 1f, 1h are attached.

Thereafter, one connecting end of the flexible tube 8a is attached to a threaded joint 74 provided on the side surface of the sprinkler head adapter 7 to which the sprinkler heads 1b, 1d, 1f, 1h are attached, and each flexible tube is attached. The other end of the sleeve 8a is connected to a sprinkler head 1b, 1d, 1f, 1h and a sprinkler head adapter 7 having sprinkler heads 1c, 1e, 1g, 1i adjacent to each other. For example, the sprinkler head adapter 7 having the sprinkler head 1b attached thereto and the sprinkler head adapter 7 having the sprinkler head 1c attached thereto are connected to each other by a flexible tube 8a. The screw joint 74 in the middle of the sprinkler head adapter 7 to which the sprinkler heads 1c, 1e, 1g and 1i are attached should be sealed with a cap nut or a sprinkler head adapter without the intermediate screw joint 74 should be installed. use.

Since the positions of the sprinkler heads 1b, 1d, 1f, 1h and the sprinkler heads 1c, 1e, 1g, 1i adjacent to each other are previously determined to be the same distance, the flexible tube 8a has the same distance. It is sufficient to prepare the same length according to the requirements, and the number of flexible tubes to be used can be reduced.

Further, since the sprinkler-head adapters 7 fixed adjacent to each other are connected by the flexible tube 8a, even if nine sprinkler heads 1a to 1i are installed in one span, It is sufficient to attach one branch joint 4 to the pipe 3 as shown in FIG. 4, and when each flexible joint 8 is attached to each threaded joint of the branch joint 4, each flexible tube 8 interferes with each other. Instead, the flexible tube 8 can be easily screwed in and attached to each threaded joint of the branch joint 4.

In the above embodiment, the sprinkler heads 1a to 1i, which are arranged in advance in the area separated by the pillar 2 etc. in the building, are connected to the main pipe 3, but the pillar 2 etc. When a new partition is to be installed in the area delimited by, when the sprinkler head 1 is additionally installed in the part where the partition is changed, etc., the sprinkler head installed closest to the sprinkler head 1 to be added is installed. -If the branch pipe is stretched from the head adapter 7, addition and modification work can be performed in a short time and easily.

Further, in each of the above-mentioned embodiments, the screw joint 74 is provided on the side surface of the sprinkler head adapter 7 to connect to another adjacent sprinkler head 1, but the flexible joint is used instead of the screw joint 74. A plug-in joint for connecting the hub 8 with one touch may be provided.

[0018]

[Effect of device]

 As described above, this invention has a screw-in type pipe joint provided on the side surface of the sprinkler-head adapter for fixing the sprinkler head and other adjacent sprinklers whose mounting positions are already known. Since the head is connected, the length of the pipe to be piped can be determined according to the installation position of the sprinkler head, and the same length of piping material can be used. Therefore, it is possible to reduce the types of pipes used in the sprinkler equipment and facilitate their management.

Further, since the sprinkler-head adapters fixed adjacent to each other are connected by a branch pipe such as a flexible tube, even when a plurality of sprinkler heads are installed in one span, the main pipe Since it is possible to reduce the number of branch pipes such as flexible tubes to be installed in the branch joint of the main pipe, the branch pipes can be attached to the branch joint of the main pipe without mutual interference, and the sprinkler head installation work can be done in a short time. Can be done easily with.

Furthermore, when changing the partition designed in advance for each floor or room of the fire prevention object or newly installing a partition, from the sprinkler head adapter installed closest to the sprinkler head to be added, Since the branch pipe can be stretched around, it is possible to easily add and change the sprinkler head in a short time.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a layout view of the sprinkler head and the branch pipe of the above embodiment.

FIG. 3 is a layout view of a conventional sprinkler head and a branch pipe.

FIG. 4 is a perspective view showing a branch portion of four branch pipes for one span.

FIG. 5 is a perspective view showing a branch portion of nine branch pipes of one span.

FIG. 6 is a side view showing one branch of nine branch pipes and a sprinkler head.

[Explanation of symbols]

 1 Sprinkler-head 3 Main piping 4 Branch joint 7 Sprinkler-head adapter 71 Tubular body 72 Threaded joint 73 Threaded joint 74 Threaded joint 8 Flexible tube

Claims (1)

[Scope of utility model registration request] 1. A sprinkler head used for fire extinguishing is mounted by screwing, and a pipe joint is provided on a side surface of a pipe of a sprinkler head adapter for fixing to a beam or a girder on a ceiling surface of a building. Sprinkler-head adapter.