JPH066848Y2 - Fire nozzle mounting bracket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a fire extinguishing nozzle mounting bracket for mounting a fire extinguishing nozzle to a ceiling plate or the like.

[Conventional technology]

Conventionally, to attach the fire extinguishing nozzle to the ceiling board, the fire extinguishing nozzle is inserted through the hole formed in the ceiling board, a stopper is fitted from the upper surface (back side) of the ceiling board to the upper end of the fire extinguishing nozzle, and fixed with a nut, The most common method is to bolt the clasp to the ceiling plate.

[Problems to be solved by the device]

However, when the fire extinguishing nozzle is attached using the clasp according to the related art as described above, it is necessary to work on the back side of the ceiling plate, which is difficult to perform, and it is necessary to tighten the nuts and bolts, which is troublesome. Takes. Further, in the case of a ceiling board using a new building material such as gypsum board, there is a problem that it is difficult to fix the clasp unless the special bolt such as an anchor bolt is used.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a mounting bracket for a fire extinguishing nozzle that can be easily installed from the front side of the ceiling plate without the need for bolting or tightening nuts. It is in.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the mounting fitting for a fire-extinguishing nozzle of the present invention has a central opening for inserting the nozzle in the center of the bottom wall, and a flange is provided on the outer periphery of the other end opening opposite to the bottom wall. Formed and at substantially equal angular intervals around the central opening of the short cylindrical body portion having an internal thread formed on the inner periphery,
At least two shafts are provided so as to pass through the bottom wall so as to be vertically movable and rotatable, and at the same time, an elastic body that constantly applies a force in a direction away from the bottom wall is provided on each of the shafts. A locking member which is rotatable integrally with the shaft is provided at an end on the outer surface side of the bottom wall, and when each shaft is rotated up to about 90 ° from the inside of the bottom wall, one end of the locking member is an outer periphery of the nozzle. Rotation of the locking member is blocked by abutting against the surface so that the other end of the locking member projects outward from the outer periphery of the bottom wall at the rotation blocking position and the nozzle ejection port is exposed. The cap body is provided with a central opening for allowing it and a male screw that can be screwed into the female screw of the short cylindrical main body.

[Action]

In the fire-extinguishing nozzle mounting fitting of the present invention having the above-mentioned configuration, a hole whose outer diameter is slightly larger than the outer shape of the short cylindrical main body is formed in the ceiling plate, and the nozzle is inserted through the central opening of the bottom wall so that the flange top surface is formed. Push the short cylindrical main body into the hole from below the ceiling plate until it contacts the lower surface of the ceiling plate, and engage the shafts from the inner side (lower side) of the short cylindrical main body with the locking members to contact the outer peripheral surface of the nozzle. The other end of each locking member hangs on the upper surface of the ceiling plate only when it is rotated about 90 ° until it does not rotate, and the ceiling plate is placed between the locking member and the flange upper surface by the action of the spring attached to each shaft. The nozzle is firmly fixed to the ceiling plate because it is sandwiched between the ceiling plate and the ceiling plate. After that, the cap body is screwed into the lid from the lower side of the short cylindrical main body to cover it.

〔Example〕

An embodiment of a fitting for a fire extinguishing nozzle according to the present invention will be described below with reference to the drawings.

The fitting of the fire extinguishing nozzle of the illustrated embodiment is a short cylindrical body 1
The main body 1 is formed with a central opening 5 slightly larger than the outer diameter of the nozzle 4, the lower end is opened, and a flange 6 is formed on the outer circumference. At the same time, a female screw 7 is formed on the inner circumference. The cap body 2 is formed with a male screw 7'to be screwed with the female screw 7 and a central opening 8 for exposing the ejection port 41 of the nozzle 4.

On the bottom wall 3 of the main body 1, three shafts 9 are arranged around the central opening 5 at substantially equal angular intervals so as to pass through the bottom wall 3 so as to be vertically movable and rotatable. The shaft head 10 is provided with a compression spring 11 as an elastic body for exerting a force in the direction opposite to the lower surface of the bottom wall 3. A locking member 12 is integrally fixed to the upper end of each of these shafts 9,
It can be rotated together with the locking member 12.

Each of the locking members 12 has one corner on one end chamfered as indicated by reference numeral 12 'in FIG. 2, and the other corner 12 "is formed in a right angle shape. Stop member 12
The other end of the bottom wall 3 when the locking members 12 are oriented substantially radially.
When it is swung inward until the long side comes into contact with the nozzle 4 (the position shown by the alternate long and short dash line in FIG. 2), it fits inside the outer periphery of the bottom wall 3. Also, the locking member 1
When 2 is swung outward from the position indicated by the alternate long and short dash line, the corner portion 12 at a right angle comes into contact with the outer peripheral surface of the nozzle 4 at a position swung by approximately 90 °, thereby preventing rotation.

In order to attach the nozzle to the ceiling plate by the mounting bracket of this embodiment, first, the hole 4 having the same size as the outer circumference of the end cylindrical body 1 is formed in the ceiling plate B, and the nozzle 4 fitted with the spacer ring 14 is attached. Through the central opening 5 of the main body 1,
A water hose (not shown) is connected to the nozzle 4 by an internal thread 42 formed on the inner peripheral surface of the upper end portion of the nozzle 4. Then, with the three locking members 12 retracted inward to the position shown by the alternate long and short dash line in FIG. 2, the main body 1 is fitted into the hole 13 of the ceiling plate B from below, and the flange 6 is attached to the lower surface of the ceiling plate B. And the shaft head 10 of each shaft 9 is rotated from below until the inner corner side corner 12 ″ of the locking member 12 abuts against the outer peripheral surface of the nozzle 4 and is blocked.

In this position, each locking member 12 extends radially as shown by the solid line in FIG. 2, and the outer end portion thereof hangs on the upper surface of the ceiling plate B. Moreover, since the spring 11 acts so as to sandwich the ceiling plate B between the upper surface of the flange 6 and the lower surface of each locking member 12, the short cylindrical main body 1 is securely fixed to the ceiling plate B. After that, the protrusion around the ejection port 41 of the nozzle 4 is fitted into the central opening 8 of the cap body 2 (see FIG. 3),
The nozzle 4 is securely fixed to the ceiling plate B by only screwing the cap body 2 from the lower side of the main body 1.

Although the short cylindrical main body is used in the above embodiment, it is of course possible to use a square main body.

[Effect of device]

As described above, the mounting fitting for the fire-extinguishing nozzle according to the present invention is provided with at least two shafts which are vertically movable and rotatable around the central opening of the short cylindrical main body, and which are integrally rotated. A movable locking member and an elastic body that constantly applies a downward force to each shaft are provided, and each shaft has a maximum of about 90
Rotation of the locking member is blocked by contacting one end of the locking member with the outer peripheral surface of the nozzle when rotated, and the other end of the locking member hangs on the top surface of the ceiling plate at the rotation blocking position. As a result, each axis can be moved up to 90
The nozzle can be easily fixed to the ceiling plate simply by attaching the cap body after rotating and fixing the main body to the ceiling plate. Therefore, unlike the prior art, it is not necessary to tighten the bolts and nuts on the back side of the ceiling plate, and the work efficiency can be significantly improved.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of a fitting for a fire-extinguishing nozzle according to the present invention, FIG. 2 is a top view thereof, and FIG. 3 is a bottom view thereof. 1 ... Short cylindrical main body, 2 ... Cap body, 3 ... Bottom wall, 4 ... Nozzle, 5 ... Center opening, 6 ... Flange, 7 ... Female screw, 7 '... Male screw, 8 ...... Center opening, 9 ... Axis, 11 ... Compression spring (elastic body), 12 ... Locking member, 13 ... Hole, 41 ... Spout port, B ... Ceiling board.

Claims (1)

[Scope of utility model registration request] 1. A center opening for inserting a nozzle is formed in the center of the bottom wall, a flange is formed on the outer circumference of the other end opening on the side opposite to the bottom wall, and a female screw is formed on the inner circumference. At least two shafts are provided at substantially equal angular intervals around the central opening of the short cylindrical main body so as to be vertically movable and rotatably inserted through the bottom wall, and are constantly attached to the respective shafts. An elastic body that exerts a force in a direction of moving away from the bottom wall is provided, and a locking member that is rotatable integrally with the shaft is provided at an end portion of each shaft on the outer surface side of the bottom wall. Rotation of the locking member is blocked by contacting one end of the locking member with the outer peripheral surface of the nozzle when rotated by up to about 90 ° from the inside of the bottom wall, and the other end of the locking member is at the rotation blocking position. To project outward from the outer circumference of the bottom wall and expose the nozzle outlet. Central opening and mounting bracket of extinguishing nozzles, characterized by comprising a cap body having a threadable external thread into the internal thread of the short cylindrical body portion of the.