JP2006110187A - Side wall type sprinkler head - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a side wall type sprinkler head where a desired sprinkling range can be set by changing the length and angle of a canopy in the side wall type sprinkler head which is provided with the canopy outside of it and sprinkles fire extinguishing water in a horizontal direction. <P>SOLUTION: A pawl 6 is provided at the canopy 2 as a means for adjusting the length of the canopy 2, and the pawl 6 is engaged to a plurality of grooves 8 formed on the outer peripheral surface of the sprinkler head 1. Moreover, as a means for adjusting the angle of the canopy 2, a cover plate 4 provided with a plurality of slits 15 and 16 through which the canopy 2 is inserted is installed at the sprinkler head 1 in an attachable and detachable manner. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a fire extinguishing sprinkler head, and more particularly to a side wall type sprinkler head that is installed on a wall surface and sprays fire extinguishing water in a horizontal direction.

In the sprinkler head, the nozzle is connected to the water supply pipe, and the valve body is opened by the thermal decomposition part that supports the valve body that closes the nozzle due to the heat of the fire. Fire extinguishing water is discharged to extinguish the fire.

Usually, sprinkler heads are installed on the ceiling surface and spray water radially downward. Sidewall type sprinkler heads are mainly installed on the wall surface, and fire extinguishing water is scattered horizontally to extinguish the fire. (For example, refer to Patent Document 1).

The side wall type sprinkler head is provided with a flat plate eaves horizontally in order to scatter more water in the horizontal direction. If the eaves are installed at an angle from the horizontal, the scattering of water is biased and an unwarned area where fire-fighting water is not sprayed is generated.

In order to prevent this, the sprinkler head described in Patent Document 1 has a rotatable structure so that the horizontal position of the eaves can be easily adjusted.

Japanese Utility Model Publication No. 5-24058 (page 1-2, Fig. 1)

The sprinkler head described in the above-mentioned Patent Document 1 has an effect that the length of the eaves is constant and can be easily adjusted so that the eaves are in a horizontal position. Since there is often a request to change the range of spraying, that is, the fire extinguishing water flying distance and spreading width, products with different eave lengths and angles must be produced each time so that the desired watering can be performed. I had to.

As a result, several kinds of eaves parts having the same shape are generated, and troubles such as necessity of providing a part identifying means at the time of member management and assembly are generated.

In view of the above problems, an object of the present invention is to provide a side wall-type sprinkler head in which the length and angle of the eaves can be changed and a desired watering range can be set.

In order to achieve the above object, according to the first aspect of the present invention, there is provided a side wall-type sprinkler head in which eaves are provided outside the sprinkler head and spray fire-extinguishing water in the horizontal direction, and the eave length adjusting means is provided. This is a side wall type sprinkler head.

The invention according to claim 2 is the side wall type sprinkler head in which eaves are provided outside the sprinkler head and the eaves angle adjusting means is provided in the side wall type sprinkler head that sprays fire-extinguishing water in the horizontal direction.

According to a third aspect of the present invention, the means for adjusting the length of the eaves includes: an eave having a locking portion; and a side wall type sprinkler head provided with a plurality of grooves engaged with the eaves on the peripheral surface. 2. The side wall type sprinkler head according to claim 1.

According to a fourth aspect of the present invention, the means for adjusting the angle of the eaves is a cover plate that is provided with a plurality of slits through which the eaves are inserted and is detachable from the side wall type sprinkler head. It is a side wall type sprinkler head.

A fifth aspect of the present invention is the side wall type sprinkler head according to any one of the first to fourth aspects, wherein the eaves is held by a biasing means.

According to the first and second aspects of the present invention, the length and angle of the eaves can be adjusted, so that a side wall type sprinkler head having a plurality of different watering specifications can be provided by one product.

According to the third aspect of the present invention, adjustment is possible by locking the eaves engaging portions in a plurality of grooves provided on the peripheral surface of the sprinkler head.

According to the fourth aspect of the present invention, the eaves angle can be adjusted by inserting the eaves through a plurality of slits provided in the cover plate.

According to the invention of claim 5, the eaves are held by the biasing means, so that the eaves are removed or adjusted by the impact of water when the side wall type sprinkler head is activated and the fire-extinguishing water is discharged. This has the effect of preventing the position from shifting.

The side wall-type sprinkler head can be adjusted in the length and angle of the eaves, but in addition, the horizontal position of the eaves can be adjusted in the same manner as the sprinkler head described in the cited document 1.

As for the side wall type sprinkler head used in the present invention, it is possible to use a sprinkler head that radiates fire extinguishing water radially downward, which is usually used, but about parts that affect water spraying such as deflectors and guide pins It is preferable to use a separately specified one.

The groove on the peripheral surface of the side wall type sprinkler head is formed by directly engraving a groove on the peripheral surface of the side wall type sprinkler head, or a cylinder having a groove on the outer peripheral surface is fitted into the side wall type sprinkler head. It is also possible.

The cover plate can be locked in a groove provided in the side wall type sprinkler head.

The eaves biasing means may be a biasing means provided with a leaf spring on the back surface of the cover plate, or a magnet or weight may be used.

Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a front view of a side wall type sprinkler head according to the present invention, FIG. 2 is a sectional view taken along line XX of FIG. 1, and FIG. 3 shows an operating state of the side wall type sprinkler head of FIG.

The side wall type sprinkler head according to the present invention includes a sprinkler head 1, an eaves 2, an outer cylinder 3, and a cover plate 4.

The sprinkler head 1 is connected to the water supply pipe 5, and in the event of a fire, the thermal decomposition part that holds the internal valve body is disassembled and the valve body is opened, and fire extinguishing water in the water supply pipe is sprayed to extinguish the fire. To do. Inside the sprinkler head 1 is accommodated a deflector D integrated with the valve body. When the valve body is opened, the fire extinguishing water released from the water supply pipe collides with the deflector D and is dispersed.

A description of other structures of the sprinkler head 1 is omitted. An example of the internal structure is described in JP-A-7-284545.

The eaves 2 has a flat plate shape and has a claw 6 for engaging with the outer cylinder 3 at one end. Chamfers 7 and 7 are provided at the corners of the other end. The shape of the other end is a portion that affects the spraying of the fire-extinguishing water. In addition to chamfering, the end may be bent, an uneven portion may be provided, or a hole may be formed.

The outer cylinder 3 is fitted into the outer peripheral portion of the sprinkler head 1, and a plurality of grooves 8 into which the aforementioned claws 6 are engaged are formed on the outer peripheral surface of the outer cylinder 3. The groove 8 is provided in a step shape so that the engagement position of the claw 6 of the eaves 2 can be adjusted.

The cover plate 4 is installed in order to conceal the gap between the hole drilled in the wall surface and the sprinkler head 1 and is dish-shaped and has a hole 9 drilled in the center. The tip of the sprinkler head 1 is inserted into the hole 9. A plurality of engaging portions 10 with the outer cylinder 3 are provided on the periphery of the hole 9.

The engaging portion 10 is erected from the cover plate 4, and a plurality of grooves 11 are formed on the inner wall of the engaging portion 10. The cover 11 is engaged with the outer cylinder 3 by engaging the groove 11 with the flange 12 formed at the end of the outer cylinder 3.

An elongated slit 13 is provided in the upper portion of the hole 9 of the cover plate 4, and is divided into an upper stage 15 and a lower stage 16 by two protrusions 14 and 14. The eaves 2 are inserted into the upper stage 15 or the lower stage 16 of the slit 13. At this time, if a leaf spring 17 is installed in the vicinity of the slit 13 so that the eaves 2 are not detached, the leaf spring 17 urges the eaves 2 to hold the eaves 2.

The position of the slit 13 of the cover plate 4 can be set at an arbitrary position. Preferably, the eaves 2 with the eaves 2 are inserted into the upper stage 15 or the lower stage 16 of the cover plate 4 and the eaves with respect to the horizontal as a reference. The angle of 2 is preferably in the range of -30 degrees to +30 degrees.

Next, the operation of the side wall type sprinkler head of the present invention will be described. As shown in FIG. 3, the side wall type sprinkler head is connected to the water supply pipe 5 and installed with its tip protruding from the wall surface. When a fire occurs, the sprinkler head 1 is actuated by the heat of the fire, the internal valve body is opened, and fire extinguishing water in the water supply pipe is released.

The discharged fire-extinguishing water projects a deflector D that is integrated with the valve body of the sprinkler head 1 to the outside, and the fire-extinguishing water collides with the deflector D and the eaves 2 and is scattered in the horizontal direction. At this time, the fire-extinguishing water colliding with the deflector D is mainly dispersed on the floor on the wall surface side, and the water colliding with the eaves 2 is dispersed on the floor farther from the wall surface.

The distance of fire extinguishing water sprayed on the floor farther from the wall is affected by the installation angle of the eaves 2. When the installation angle of the eaves 2 is almost horizontal, the flight distance becomes shorter, and conversely, the tip of the eaves 2 is horizontal. When installed upward, the flight distance tends to increase.

Moreover, when the protrusion amount of the eaves 2 from the cover plate 4 is short, the flying distance of the fire extinguishing water is short, and when the protrusion amount is long, the flying distance tends to be long.

From the above, it becomes possible to control the sprinkling flight distance of the side wall type sprinkler head of the present invention by the angle of the eaves 2 and the protrusion amount from the cover plate 4.

The above-described side wall type sprinkler head can be used in a state where the valve body is opened, and can also be used for agricultural use, industrial use, and the like.

Front view of side wall type sprinkler head of the present invention XX sectional view of FIG. Operational state of the side wall type sprinkler head of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sprinkler head 2 Eaves 3 Outer cylinder 4 Cover plate 5 Water supply pipe 6 Claw 8 Groove 10 of outer cylinder Engagement part 11 Engagement part groove 12 Gutter part 13 Slit 15 Upper stage 16 Lower stage 17 Leaf spring

Claims (5)

A side wall-type sprinkler head, wherein eaves are provided outside the sprinkler head, and the elongate length adjusting means is provided in the side-wall type sprinkler head that sprays fire-extinguishing water in the horizontal direction.
A side wall-type sprinkler head, wherein eaves are provided outside the sprinkler head, and the eaves angle adjustment means is provided in the side-wall type sprinkler head that sprays fire-extinguishing water in the horizontal direction.
The means for adjusting the length of the eaves comprises a eave having a locking portion and a side wall-type sprinkler head provided with a plurality of grooves engaged with the eaves on the peripheral surface. The side wall type sprinkler head according to claim 1.
4. The side wall type sprinkler according to claim 2, wherein the means for adjusting the angle of the eaves is a cover plate provided with a plurality of slits through which the eaves are inserted and detachable from the side wall type sprinkler head. head.
The side wall type sprinkler head according to any one of claims 1 to 4, wherein the eaves are held by a biasing means.

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