JPH0717347U - Sprinkler head - Google Patents

Abstract

(57) [Summary] [Purpose] Depending on the shape of the floor to be sprinkled, an elliptical or oval sprinkling shape can be obtained, and unnecessary sprinkling areas and overlapping sprinkling areas can be minimized, and To obtain a sprinkler head with a structure that can reduce the number of installations. In a sprinkler head in which a plurality of water spray openings 2 are provided at equal intervals on the circumference of a head body 1, a horizontal guide portion 2a is formed in the water spray opening 2 in a direction of increasing the water spray distance, and a water spray distance is also formed. A sprinkler head in which a guide portion 2b is formed in a downward direction from the water sprinkling opening 2 in the direction of shortening.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sprinkler head for sprinkler used for automatic fire extinguishing equipment installed in offices, hospitals, etc. and also used for retroactive construction.

[0002]

[Prior art]

 FIG. 6 is an external perspective view of a conventional closed type sprinkler head, FIG. 7 is a partial vertical sectional view thereof, and FIG. 8 is a bottom view thereof. A plurality of water spray openings 2 are provided at equal intervals on the circumference of the tapered lower surface of the circular head body 1. A lever 3 is attached to the lower portion of the head body 1, and a fusible piece 4 is welded to the lower surface of the lever 3 by solder metal. A disassembly mechanism 5 is supported on the lever 3, and a valve 6 is further supported via the disassembly mechanism 5.

In the above-mentioned sprinkler head, the high pressure water in the head is always closed by the assembly load applied to the valve 6, and when the fusible piece 4 is heated by the heat of fire and reaches the marking temperature, it is generated by the solder metal. The welded surface melts and the lever 3 rapidly separates. When the lever 3 is released, the assembly load is released, the disassembling mechanism 5 disassembles and scatters, the valve 6 descends to close the mounting opening of the disassembling mechanism 5, and the high pressure water in the head is rotated while being rotated. Water is sprayed in a circular shape from the watering opening 2 to extinguish a fire.

[0004]

[Problems to be solved by the device]

 As described above, since the conventional sprinkler head has a circular water sprinkling shape, when the installation position of the sprinkler head is S, its effective water sprinkling radius is R, and the floor surface to be sprinkled is A, as shown in FIG. If water is sprayed on a long and narrow rectangular surface, or if the mutual distances of the sprinkler heads S are different in the vertical and horizontal directions of the plane due to the installation positional relationship with other equipment as shown in Fig. 10, all floors to be sprayed are covered. Therefore, there is a problem that it cannot be said that the rational and efficient watering is done because unnecessary watering area B is generated and overlapping watering area C is generated. .

The present invention has been made to solve the above-mentioned problems, and can obtain an oval or oval watering shape depending on the shape of the floor surface to be watered, and unnecessary watering areas or overlapping The purpose is to obtain a sprinkler head having a structure that can minimize the sprinkling area and reduce the number of installations.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the sprinkler head according to the present invention is a sprinkler head in which a plurality of water sprinkling openings are provided at equal intervals on the circumference of the head body. In addition to forming the guide portion in the direction, a guide portion in the downward direction is formed at the sprinkling opening in the direction of shortening the sprinkling distance.

In addition, the sprinkler head according to the present invention is characterized in that the guide portions are formed in a flange shape inside the head main body at the periphery of the water spray opening.

Further, the sprinkler head according to the present invention is characterized in that the head main body is formed in a long elliptical shape or an oval shape along a direction in which the water spray distance is lengthened.

[0009]

[Action]

 Since the sprinkler head according to the present invention is configured as described above, the sprinkling from the sprinkling opening in the direction of increasing the sprinkling distance and the sprinkling from the sprinkling opening in the direction of decreasing the sprinkling distance are respectively sprinkled. As the jetting direction changes depending on the direction of the guide part of the opening, the reaching distance varies, so an elliptical or oval watering shape is obtained as a whole, and watering is performed according to the shape of the floor surface to be watered. be able to.

Further, since the guide portion is formed in a flange shape inside the head main body at the periphery of the water sprinkling opening, it is possible to maintain a neat design without changing the external shape of the sprinkler head. .

Further, since the head main body is formed in an elliptical shape or an oval shape, it is possible to more effectively obtain an elliptical or oval water spray shape.

[0012]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. Fig. 1 is a vertical cross-sectional view of a sprinkler head, (A) shows a structure of a water spray opening in a direction to increase the water spray distance, (B) shows a structure of a water spray opening in a direction to shorten the water spray distance, Fig. 2 is a bottom view of the sprinkler head according to the second embodiment, FIG. 3 is a bottom view of the sprinkler head according to the third embodiment, and FIGS. 4 and 5 are explanatory views showing a sprinkler state by the sprinkler head according to the embodiment of the present invention. It is a figure.

In the sprinkler head according to the embodiment of the present invention, a plurality of water spray openings 2 are provided at equal intervals on the circumference of a tapered lower surface of a circular head body 1, and a lever 3 is provided at the bottom of the head body 1. The structure in which the fusible piece 4 is provided on the lower surface of the lever 3 by welding with solder metal, and further the disassembly mechanism 5 is supported by the lever 3 and the valve 6 is supported through the disassembly mechanism 5, This is the same as the conventional one shown in FIG.

Further, in the sprinkler head according to the embodiment of the present invention, as shown in FIGS. 1 (A) and 1 (B), a horizontal guide portion is provided in the water spray opening 2 in the direction of increasing the water spray distance. 2a is formed, and a downward guide portion 2b is formed at the sprinkling opening 2 in the direction of shortening the sprinkling distance, so that the sprinkling shape is elliptical or oval according to the shape of the floor surface to be sprinkled. Is being obtained.

However, according to the above-described embodiment, the fusible piece 4 is melted by the heat of the fire and the lever 3 is detached, the disassembling mechanism is disassembled and scattered, and the valve 6 is lowered to open the mounting port of the disassembling mechanism 5. The high-pressure water in the head is sprayed and sprayed from each sprinkling opening 2 while being rotated, and at this time, the sprinkling from the sprinkling opening 2 in the direction of increasing the sprinkling distance and the sprinkling distance are shortened. The water spouting from the water spouting opening 2 in different directions is different in the jetting direction due to the difference in the direction of the guide portions 2a and 2b, and the reaching distance is different. Therefore, an oval or oval water sprinkling shape can be obtained as a whole. To be

Therefore, when the sprinkler head S is installed at the position shown in the figure when sprinkling water on the slender rectangular floor surface A as shown in FIG. 4, unnecessary sprinkling is required as compared with the conventional one shown in FIG. Area B can be reduced, and the number of sprinkler heads installed can be reduced. Further, as shown in FIG. 5, when the mutual distances of the sprinkler heads S are different in the vertical and horizontal directions of the plane, it is possible to reduce the overlapping watering areas C as compared with the conventional one shown in FIG. Further, since the guide portions 2a, 2b are formed in a flange shape inside the head body 1 at the periphery of the sprinkling opening 2, many advantages such as maintaining the clean design of the sprinkler head as it is can be obtained. Can be expected.

In the above embodiment, the case where the head body 1 has a circular shape has been described, but the shape of the head body 1 itself is an elliptical head body 1a as shown in FIG. 2, or as shown in FIG. The oval head body 1b can be formed into an oval shape, and by using such a head body shape, an elliptical or oval water spray shape can be obtained more effectively.

[0018]

[Effect of device]

 As explained above, according to the sprinkler head of the present invention, an elliptical or oval watering shape can be obtained according to the shape of the watering surface, so that unnecessary watering areas and overlapping watering areas can be minimized. You can keep it to the limit. Therefore, rational and efficient watering can be performed. Further, as a result, the number of sprinkler heads to be installed can be reduced, so that the cost for installation can be reduced.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a sprinkler head according to an embodiment of the present invention, (A) showing a structure of a sprinkler opening in a direction for increasing a sprinkling distance, and (B) sprinkling in a direction for shortening a sprinkling distance. It is a figure which shows the structure of an opening.

FIG. 2 is a bottom view of a sprinkler head according to a second embodiment of the present invention.

FIG. 3 is a bottom view of a sprinkler head according to a third embodiment of the present invention.

FIG. 4 is an explanatory view showing a watering state on a rectangular floor surface by a sprinkler head according to an embodiment of the present invention.

FIG. 5 is an explanatory view showing a sprinkling state when the mutual distances by the sprinkler head according to the embodiment of the present invention are different in the vertical and horizontal directions of the plane.

FIG. 6 is an external perspective view of a conventional closed type sprinkler head.

FIG. 7 is a partial vertical cross-sectional view of a conventional closed type sprinkler head.

FIG. 8 is a bottom view of a conventional closed type sprinkler head.

FIG. 9 is an explanatory view showing a sprinkling state on a rectangular floor surface by a conventional closed type sprinkler head.

FIG. 10 is an explanatory view showing a sprinkling state when the mutual distance by the conventional closed type sprinkler head is different in the vertical and horizontal directions of the plane.

[Explanation of symbols]

 1, 1a, 1b Head body 2 Water sprinkling opening 2a, 2b Guide part 3 Lever 4 Soluble piece 5 Disassembly mechanism 6 Valve A Sprinkling floor surface B Unnecessary sprinkling area C Overlapping sprinkling area S Sprinkler head

Claims (3)

[Scope of utility model registration request] 1. A sprinkler head having a plurality of water sprinkling openings provided at equal intervals on the circumference of a head body, wherein a horizontal guide portion is formed in the water sprinkling opening for increasing the water sprinkling distance, and the water sprinkling distance is shortened. The sprinkler head is characterized in that the water spouting opening in the direction to be formed is formed with a guide portion in the downward direction. 2. The sprinkler head according to claim 1, wherein each of the guide portions is formed in a flange shape inside the head main body at the periphery of the water spray opening. 3. The sprinkler head according to claim 1, wherein the head main body is formed into an elliptical shape or an oval shape that is long along the direction of increasing the water sprinkling distance.