TWI508758B - Water sprinkler head - Google Patents

Description

Water discharge sprinkler

The present invention relates to a sprinkler sprinkler head that sprinkles water for fire when a fire occurs, and in particular, is a water sprinkler type sprinkler head.

The water discharge type sprinkler head is one of the open type sprinkler heads that are normally kept open, and is supplied to the water discharge type sprinkler head according to the action of the fire alarm or the fire sensor. The water-discharge type sprinkler head is placed on a higher ceiling than the general lock-type sprinkler sprinkler head (the nozzle is normally closed, and the sprinkler head that opens the nozzle by the heat of the fire can be activated by the heat-decomposing part) . The reason is that once the lock sprinkler sprinkler head is placed on the upper ceiling portion, there is a dangerous state in which it takes time until the heat of the fire reaches the ceiling and the lock sprinkler sprinkler head is actuated, thereby causing a fire. Extended burning.

In such a high-rise building, an open sprinkler is used to extinguish the fire in the early stage of the fire. Since the sprinkler head (protection area) of each type of sprinkler head is also widely used in the open sprinkler head, it is installed in a large space such as a theater or an indoor stadium. An example of the water discharge type sprinkler head is described in Patent Document 1.

The water discharge type sprinkler head of Patent Document 1 is a water discharge type sprinkler head having a composite structure in which a plurality of sprinkling holes are annularly perforated from a side surface of a bowl-shaped diffusion device to a bottom surface. The water discharge type sprinkler head is disposed near the ceiling or the ceiling, and the sprinkling water sprayed to the ground by the water discharge is substantially circular in shape.

It is stipulated in the decree that the water discharge type sprinkler head must be sprayed with a predetermined amount of water in the sprinkler range (protection area). However, the water-discharge type sprinkler head is placed at a height of more than 10 m from the ground. It is feared that the water sprayed from the water-discharge type sprinkler head set at a higher position will be affected by air resistance or air-conditioning equipment until it reaches the ground. After that. Therefore, the water droplets sprinkled from the water discharge type sprinkler are sprayed so as to be more than a certain size. Thereby, the amount of water above a predetermined amount is sprayed in the protection area by reducing the air resistance or the influence of the air conditioning equipment.

Patent Document 1: Japanese Patent Laid-Open No. Hei 10-179788

As described above, the water sprayed from the water discharge type sprinkler is a water droplet of a certain size or more, so that it is easy to fall from the height of the water discharge type sprinkler head to the ground, but in the case where the protection area is to be enlarged, it is necessary to increase The discharge pressure or the amount of water discharged from the discharge type sprinkler extends the distance from the water sprayed by the discharge type sprinkler to the horizontal direction, or the amount of water sprayed to the expanded protection area must be increased. However, once the discharge pressure or the amount of water discharged is increased, the size of the piping connecting the water source and the discharge type sprinkler head, or the capacity of the pump for supplying water to the discharge type sprinkler head must be increased, and there is a problem that the equipment cost increases.

On the other hand, once the size of the water droplets sprayed from the water discharge type sprinkler is reduced, although the scattering distance of the water droplets in the horizontal direction is extended, it may be affected by air resistance or air conditioning equipment, which may cause the water to be sprayed off the protection area. Or the water distribution in the protective area is unevenly distributed, and the water volume or sprinkling distribution specified above by the statute cannot be obtained.

Therefore, in view of the above problems, it is an object of the present invention to provide a water discharge type sprinkler head which can ensure the size of the water droplets sprayed from the water discharge type sprinkler head and can extend the scattering distance in the horizontal direction to expand the protection area.

In order to achieve the above object, the present invention provides the following water discharge type sprinkler head.

The plurality of sprinkling holes provided in the perforation of the bowl-shaped diffusing device are arranged in a ring shape in parallel, and the sprinkling holes arranged in a ring shape in parallel are provided as perforations, and the diffusing device is disposed on the composite type having the body of the water spout. A water discharge type sprinkler head is provided with a convex portion at an upper portion of the sprinkling hole.

Thereby, the water ejected from the sprinkling hole flows along the lower surface of the tenon portion, and the flow of the water flow in the horizontal direction is increased, and the outer edge portion of the tenon portion is scattered, whereby the water can be scattered. Go further. Further, by providing the convex portion, the water ejected from the sprinkling hole is guided to the convex portion side, and as described above, the scattering distance in the horizontal direction can be extended, and the collected water amount can be scattered to a distant place. Expand the protective area of the discharge sprinkler. At this time, when the upper end portion of the sprinkling hole is equal to the height position of the lower surface of the bulge portion, the resistance when the water ejected from the sprinkling hole flows to the bulge portion can be reduced.

The present invention may be configured such that a plurality of upper and lower intervals are formed in the diffusion device, a sprinkling hole is bored in an annular shape in each of the layers, and a convex portion is provided on the upper portion of the sprinkling hole in the uppermost stage.

Thereby, the sprinkling hole is provided by perforating the annular layer in each layer section. For example, the sprinkling hole of the upper layer can scatter the water in the horizontal direction to spray the water near the periphery of the protective area, and the sprinkling hole of the lower layer. The water can be sprayed on the center of the protective area directly below the drain sprinkler head.

The present invention can be configured as follows: a sprinkling hole is provided from the perforation The distance from the side of the diffuser to the outer edge of the tenon is equal to or greater than the width of the sprinkler.

Thereby, the longer the distance from the side surface of the diffusing device in which the sprinkling hole is provided to the outer edge portion of the tenon portion, the more the flow in the horizontal direction of the water ejected from the sprinkling hole can be increased. When the distance from the side where the sprinkling hole is provided in the perforation of the diffusing device to the outer edge portion of the tenon portion is short, there is a fear that the flow of water ejected from the sprinkling hole in the horizontal direction is insufficient, so When the length is equal to or greater than the width of the sprinkling hole, the flow in the horizontal direction of the water ejected from the sprinkling hole can be sufficiently increased.

In the above aspect of the invention, the tenon portion may be inclined upward from the sprinkling hole toward the outer edge portion of the tenon portion.

As a result, the lower surface of the tenon portion formed on the upper portion of the sprinkling hole is inclined upward (the ceiling side), and the outer edge portion of the tenon portion and the lower surface of the ceiling are brought closer together, and the water ejected from the sprinkling hole is formed. Since it flows through the lower surface of the tenon portion and flows from the outer edge portion of the tenon portion along the ceiling, it is possible to extend the scattering distance in the horizontal direction.

In the above aspect of the invention, the side surface of the diffusing device in which the sprinkling hole is provided in the perforation and the boundary portion formed in the upper portion of the sprinkling hole are curved or inclined.

Thereby, since the edge of the spout side of the sprinkling hole extends toward the outer edge portion of the tenon portion, the water ejected from the sprinkling hole can be guided toward the outer edge portion of the tenon portion.

In the above aspect of the invention, the groove may be formed in the convex portion from the sprinkling hole toward the outer edge of the tenon portion.

Thereby, the water flowing through the lower surface of the tenon portion can be guided in the direction of the groove, and the amount of water sprinkling in any direction and the distance of the flying can be increased.

As described above, according to the present invention, water which is ejected from the sprinkling hole of the uppermost stage by the provision of the tenon portion flows along the lower surface of the tenon portion, and in a state where the flow of the water flowing in the horizontal direction is increased, It scatters from the outer edge of the tenon, thereby allowing the water to fly farther. Further, by providing the convex portion, the water ejected from the sprinkling hole is guided to the convex portion side, and the distance to the horizontal direction can be extended as described above, and the collected water can be scattered to a distant place. It is possible to expand the protection area of the drain type sprinkler head.

First embodiment (Fig. 1 to Fig. 3)

The water discharge type sprinkler head H of the first embodiment is composed of a main body 1 and a diffusing device 2. The main body 1 has a tubular shape, and a water spout 3 is formed at the center, and a mounting screw 4 for attaching to the pipe P is provided outside the main body 1. A flange 5 is formed at a lower portion of the body 1, and a male screw 6 is screwed to the outer periphery of the flange 5.

The diffusing device 2 has a bowl shape having a step 7 at the outer peripheral portion, and a female screw 8 is screwed to the upper inner periphery. The diffusion device 2 is attached to the body 1 by screwing the female thread 8 to the male thread 6 of the flange 5 of the body 1. In the diffusing device 2, a plurality of sprinkling holes (upper stage sprinkling holes) 9 are arranged in parallel from the step 7 to the upper side thereof. Further, a plurality of sprinkling holes (lower stage sprinkling holes) 10 are arranged in parallel in the lower portion of the step 7 in a ring shape.

The position of the perforation with respect to the sprinkling hole 10 below the upper sprinkling hole 9 is the portion below the upper sprinkling hole 9 and the adjacent upper layer sprinkling hole 9. That is, in the water discharge type sprinkler head of the embodiment, The upper layer sprinkling hole 9 and the lower layer sprinkling hole 10 are perforated so as to be different from each other.

A tenon portion 11 is provided to be expanded outwardly above the upper layer sprinkling hole 9. The tenon portion 11 is provided in parallel with the ceiling C, and is expanded from the outer peripheral portion of the diffusing device 2 in the vertical direction. The upper surface of the tenon portion 11 is disposed close to the ceiling C. The lower surface 11A of the tenon portion 11 is provided at a position substantially equal to the height of the upper end surface 9B of the upper layer sprinkling hole 9, whereby the water ejected from the upper layer sprinkling hole 9 can be along the convex portion 11 When 11A flows below, the resistance to running water is reduced.

In the tenon portion 11, the distance L from the side surface 2A of the upper layer sprinkling hole 9 to the outer edge portion 11B of the tenon portion 11 is provided from the perforation of the diffusing device 2, and is the length of the upper layer sprinkling hole 9 having a width W or more. . In this way, it is possible to ensure a sufficient distance to the flow of the water ejected from the upper layer sprinkling hole 9 in the horizontal direction.

Further, the boundary portion 12 of the diffusing device 2 which is higher than the step 7 and the boundary portion 12 of the lower surface 11A of the tenon portion 11 are curved. Thereby, since the edge 9A on the convex portion 11 side of the upper layer sprinkling hole 9 extends toward the outer edge portion 11B of the tenon portion 11, the water ejected from the upper layer sprinkling hole 9 can be guided toward the tenon portion 11 The outer edge portion 11B.

Similarly, since the boundary portion 13 of the side surface 2B and the step 7 which are lower than the step 7 is also curved, and the edge of the step 7 side of the lower layer sprinkling hole 10 extends toward the outer edge of the step 7, the lower layer can be The water sprayed from the section sprinkling hole 10 is directed toward the outer edge side of the step 7. The step 7 is similar to the above-described tenon portion 11 by causing the water ejected from the lower layer sprinkling hole 10 to follow the segment The difference 7 flows, and the distance to the horizontal direction can be extended. It is also possible to make the above-mentioned boundary portions 12, 13 have an inclined shape.

A flow rate adjustment plate 14 is provided inside the diffusion device 2. The flow regulating plate 14 is disposed between the upper layer sprinkling hole 9 and the lower layer sprinkling hole 10, and has a hole 15 at the center. The flow rate adjustment can be performed by adjusting the size of the hole 15. That is, when the amount of sprinkling water from the lower stage sprinkling hole 10 is increased, the hole 15 is enlarged, and conversely, when the amount of sprinkling from the upper stage sprinkling hole 9 is increased, the hole 15 is narrowed.

Further, the width or size of the sprinkling holes 9, 10 of the diffusing device 2 affects the size of the water droplets sprinkled from the water sprinkling head, for example, when the width of the sprinkling holes 9, 10 is narrowed, the water droplets become Small, once the width is increased, the water droplets tend to become larger.

Modification 1 (Fig. 4)

In the first modification shown in FIG. 4, the upper surface 11B of the tenon portion is inclined upward from the upper layer sprinkling hole 9 toward the outer edge portion 11B of the tenon portion 11 (the direction of the ceiling C). The outer edge portion 11B of the tenon portion 11 is provided close to the lower surface of the ceiling C, and the resistance of the water flowing through the tenon portion 11 to the lower surface of the ceiling C can be reduced, and the scattering in the horizontal direction can be extended. distance.

In addition, when the ceiling C is not provided, the water ejected from the upper sprinkling hole 9 flows along the lower surface 11A of the tenon portion 11 and scatters from the outer edge portion 11B, and is scattered due to the water flow obliquely upward. Therefore, it is possible to increase the scattering distance in the horizontal direction.

Modification 2 (Fig. 5)

In the second modification, the groove G is formed in the lower surface 11A of the tenon portion 11 from the outlet of the upper layer sprinkling hole 9 toward the outer edge portion 11B of the tenon portion 11. Thereby, the water sprayed from the upper sprinkling hole 9 flows along the groove G, so that the amount of sprinkling in any direction and the extended flying distance can be increased.

In Fig. 5(a), a groove G is formed in any direction of the lower surface 11A of the tenon portion 11. Thereby, the water flow is guided in the direction in which the groove G extends, and an elliptical guard area can be obtained. Further, in the diagram (b), the groove G is curved and curved, and the water ejected from the upper sprinkling hole 9 flows along the groove G, and the water scattered from the outer edge portion 11B spirally rotates. And spray at the same time. Thereby, the amount of water sprinkling in the protected area can be made uniform.

Second embodiment (Fig. 6)

Next, the water discharge type sprinkler head H2 of the second embodiment will be described. The difference between the water discharge type sprinkler head H2 of the second embodiment and the first embodiment is that the sprinkling hole is provided in the upper and lower layers in the first embodiment, but in the second embodiment, only the second embodiment is provided. 1 layer sprinkler hole. The same components as those in the first embodiment are denoted by the same reference numerals, and the detailed description thereof will be omitted.

In the second embodiment, the main body 1 is the same as that of the first embodiment. The diffusing device 20 has a bowl shape, and a female screw 8 is screwed to the upper inner circumference to be screwed to the male screw 6 of the body 1. A plurality of sprinkling holes 21 are arranged in parallel on the side surface of the diffusing device 20.

Above the sprinkling hole 21, a projecting portion 11 is provided to be expanded outward. The tenon portion 11 is disposed in parallel with the ceiling C and is expanded from the outer peripheral portion of the diffusing device 20 in the vertical direction. The lower surface 11A of the tenon portion 11 is disposed and sprinkled The end surface 21A of the water hole 21 is substantially at the same height, and the water that can be ejected from the sprinkling hole 21 reduces the resistance of the flowing water as it flows along the lower surface 11A of the tenon portion 11.

In the boss portion 11, the distance L from the side surface 20A of the sprinkling hole 21 to the outer edge portion 11B of the tenon portion 11 is provided from the perforation of the diffusing device 20, and is the length of the sprinkling hole 21 or more. In this way, it is possible to ensure a sufficient distance to the flow that flows in the horizontal direction from the water sprayed from the sprinkling hole 21.

Further, the boundary portion 12A of the diffusing device 20 and the boundary portion 12 of the lower surface 11A of the tenon portion 11 are curved. The action and effect of the boundary portion 12 are the same as those of the first embodiment. Further, the boundary portion 12 may be formed in an inclined shape.

Further, in the second embodiment, as in the first modification of the first embodiment, the tenon portion 11 of the second embodiment can be configured as follows: from the sprinkling hole 21 toward the outer edge portion 11B of the tenon portion 11 The lower surface 11A of the tenon portion is inclined upward (in the direction of the ceiling C). Further, similarly to the second modification of the first embodiment, the groove G may be formed in the lower surface 11A of the tenon portion 11 from the outlet of the sprinkling hole 21 toward the outer edge portion 11B of the tenon portion 11.

In the water discharge type sprinkler head described above, the convex portion and the diffusion device are integrally formed. However, the present invention is not limited thereto, and the convex portion may be separately formed and attached to the water discharge type sprinkler head.

1‧‧‧ Ontology

2, 20‧‧‧ diffusing device

3‧‧‧Water outlet

4‧‧‧Installation screws

5‧‧‧Flange

6‧‧‧A male thread

7‧‧ ‧ paragraph difference

8‧‧‧ female thread

9‧‧‧Upper stage sprinkler

10‧‧‧Underwater sprinkler

11‧‧‧Polt

12‧‧‧The perforation is provided with the boundary between the side of the upper sprinkler hole and the convex portion

13‧‧‧The perforation is provided with the boundary between the side of the lower sprinkler hole and the step

14‧‧‧Flow adjustment board

15‧‧‧ hole

21‧‧‧Sprinkle hole

Fig. 1 is a side view of a water discharge type sprinkler head according to a first embodiment.

Figure 2 is a cross-sectional view of Figure 1.

Figure 3 is a perspective view of Figure 1.

Fig. 4 is a cross-sectional view showing a modification 1.

Fig. 5 is a view showing a groove shape of a tenon portion in a second modification.

Fig. 6 is a cross-sectional view showing a water discharge type sprinkler head according to a second embodiment.

C‧‧‧Ceiling

H‧‧‧Draining sprinkler

L‧‧‧ distance

P‧‧‧Pipe

W‧‧‧Width

1‧‧‧ Ontology

2‧‧‧Diffuser

2A, 2B‧‧‧ side

7‧‧ ‧ paragraph difference

9‧‧‧Upper stage sprinkler

9B‧‧‧ upper end

10‧‧‧Underwater sprinkler

11‧‧‧Polt

11A‧‧‧Under

11B‧‧‧The outer edge

12‧‧‧The perforation is provided with the side of the upper sprinkler hole and the convex part Boundary part

13‧‧‧The perforation is provided with the side of the lower sprinkler hole and the side of the step Boundary part

Claims (14)

A water discharge type sprinkling head characterized by comprising: a body having a water discharge port; a bowl-shaped diffusion device disposed on the body; wherein the diffusion device is arranged in a ring shape in parallel with a plurality of sprinkling holes, and is juxtaposed in a ring shape The sprinkling hole is arranged in the upper and lower plurality of layers for the perforation; and is disposed between the sprinkling hole of the upper layer and the sprinkling hole of the lower layer inside the diffusing device, and is provided with a flow adjusting plate having a hole; The outer portion is provided with a convex portion which is externally expanded at the same height as the upper end surface of the sprinkling hole of the uppermost layer. A water discharge type sprinkling head characterized by comprising: a body having a water discharge port; a bowl-shaped diffusion device disposed on the body; wherein the diffusion device is arranged in a ring shape in parallel with a plurality of sprinkling holes, and is juxtaposed in a ring shape The sprinkling hole is arranged for the perforation to be arranged on the upper and lower layers; between the sprinkling hole of the upper layer and the sprinkling hole of the lower layer inside the diffusing device, a flow regulating plate having a hole is arranged, and is sprinkled on the uppermost layer The upper end of the water hole is provided with a convex portion; the convex portion is inclined upward from the sprinkling hole toward the outer edge portion of the convex portion. A water discharge type sprinkler head characterized by having: a body having a water outlet; a bowl-shaped diffusing device disposed on the body; wherein the diffusing device is provided with a plurality of water sprinkling holes in an annular shape, and the sprinkling holes arranged in a ring shape are arranged in a plurality of holes a layer section; between the sprinkling hole of the upper layer of the diffusing device and the sprinkling hole of the lower layer, a flow regulating plate having a hole is arranged, and a convex portion is arranged at an upper end of the sprinkling hole of the uppermost layer; The boundary portion of the diffusing device having the sprinkling hole and the boundary portion formed at the upper portion of the sprinkling hole are arcuate or inclined. The water discharge type sprinkler head according to any one of claims 1 to 3, wherein a distance from a side surface of the sprinkling hole to the outer edge portion of the convex portion from the perforation of the diffusing device is a sprinkling hole Above the width. The water discharge type sprinkler head according to any one of claims 1 to 3, wherein a groove from the sprinkling hole toward the outer edge of the tenon portion is engraved on the tenon portion. A water discharge type sprinkling head characterized by comprising: a body having a water discharge port; a bowl-shaped diffusion device disposed on the body; wherein the diffusion device is arranged in a ring shape in parallel with a plurality of sprinkling holes, and is juxtaposed in a ring shape The sprinkling hole is arranged in the upper and lower plurality of layers for the perforation; and is disposed between the sprinkling hole of the upper layer and the sprinkling hole of the lower layer inside the diffusing device, and is provided with a flow adjusting plate having a hole; The external setting has a sprinkling hole with the uppermost layer The same height of the upper end surface is a surface that expands in a direction intersecting the water discharge direction of the water inlet. A water discharge type sprinkling head characterized by comprising: a body having a water discharge port; a bowl-shaped diffusion device disposed on the body; wherein the diffusion device is arranged in a ring shape in parallel with a plurality of sprinkling holes, and is juxtaposed in a ring shape The sprinkling hole is arranged in the upper and lower plurality of layers for the perforation; and is disposed between the sprinkling hole of the upper layer and the sprinkling hole of the lower layer inside the diffusing device, and is provided with a flow adjusting plate having a hole; The outer surface is provided with a surface that expands in the direction parallel to the flow regulating plate at the same height as the upper end surface of the sprinkling hole of the uppermost stage. The water discharge type sprinkler head according to any one of claims 1 to 3, 6, or 7, wherein the smallest portion of the hole of the flow regulating plate is smaller than the smallest portion of the water inlet. The water discharge type sprinkler head according to any one of claims 1 to 3, 6, and 7, wherein the interval between the sprinkling hole and the adjacent sprinkling hole is narrower than the width of the sprinkling hole. The water discharge type sprinkler head according to any one of claims 1 to 3, 6, and 7, wherein the height dimension of the upper layer sprinkling hole is shorter than the height dimension of the lower layer sprinkling hole. The water discharge type sprinkler head according to any one of the claims 1 to 3, 6, and 7, wherein the number of the upper layer sprinkling holes and the lower layer sprinkling hole are The number is equal. The water discharge type sprinkler head according to any one of claims 1 to 3, 6, and 7, wherein the water discharge type sprinkler head can be disposed at a place where the ceiling is not provided. The water discharge type sprinkler head according to any one of claims 1 to 3, 6, or 7, wherein the upper end of the sprinkling hole has a surface on which the water ejected from the sprinkling hole follows the flow. The water discharge type sprinkler head according to any one of claims 1 to 3, 6 and 7, wherein the inner side of the sprinkling hole of the uppermost stage is provided to be the same as the upper end surface of the sprinkling hole of the uppermost stage The height of the surface that expands toward the inside.