KR200232397Y1 - water sprinkler head - Google Patents

Abstract

The present invention provides a sprinkler head which prevents leakage of fire water from the sprinkler head by preventing the shock force transmitted through the unlocking portion of the sprinkler head from being transmitted to the valve by passing the ball through a plurality of balls. It is about.

The present invention provides a sprinkler head comprising: an opening and closing portion having a sheet into which an O-ring is inserted into a lower end of an inner surface of a nozzle; A fixed upper disk having a plurality of guides provided in a radial shape, a variable lower disk having a plurality of ball supports and having ribs integrally, a ball and sleeve sandwiched between the upper disk and the lower disk, and a sheet fitted in the sleeve A pressure plate for pressurizing the pressure plate, a heat collecting plate provided with a plurality of thin disk disc plates, an insulating ring fitted between the variable lower disc and the heat collecting plate, a soluble body inserted in the center of the heat collecting plate, and a soluble body, a heat collecting plate, and an insulating ring. And a locking screw fixed to the lower disk and an unlocking portion having a cap of a ball structure.

Description

Sprinkler Head {water sprinkler head}

The present invention relates to a sprinkler head, in particular, a process of transporting and installing the sprinkler head, and after installation, prevents leakage from occurring by preventing a shock applied to the heat collecting plate from outside from being transmitted directly to the valve blocking the outlet port. In addition, in the event of a fire is to be quickly and precisely to ensure that the fire is put out early.

In general, a sprinkler is installed on the ceiling of a building, and a fire is generated, and at the same time, the sprinkler is provided to extinguish extinguishing water to extinguish the fire.

The sprinkler has a head having a nozzle fixed to a pipe line provided in the ceiling, and a frame provided to be spaced apart at predetermined intervals from the side and bottom of the nozzle is screwed to the head.

In addition, it is provided with a ring member provided on the upper and lower ends of the connecting member and a lifting platform having integrally a diffusion portion provided at the lower end so as to be movable vertically in the space provided between the outside of the nozzle and the inner surface of the frame.

And the opening and closing part to open and close the nozzle in the center of the diffusion part and the locking part having the heat sensing part and the soluble body under the opening and closing part to maintain the state of pressurizing the nozzle to prevent leakage of fire water and at the same time locking in case of fire It is provided so that fireproof water may be sprayed through a nozzle by dismantling a part.

Here, the locking part for unlocking the opening and closing part provided in the diffusion part selectively (with or without fire) is a flexible locking ring inserted between the upper tightening member having an upward inclined surface and the upper tightening member having an inclined downward and the upper and lower tightening members. It is made of fuse metal and fixed to the lower end of the frame.

When the fire occurs during the installation in the ceiling and the ambient temperature reaches the set temperature, the fuse metal melts and the volume decreases, and the tightening force decreases by the reduced volume, and the locking ring is inserted between the upper and lower tightening members.

As soon as the locking ring is inserted, the locking part is separated from the frame and falls to the floor, and the extinguishing water is blown out through the nozzle and the diffuser of the platform to extinguish the fire.

However, there is another problem that the fire damage is increased by delaying the time of spraying the fire water from the sprinkler due to the small cross-sectional area (size) of the heat collecting plate which transfers the heat generated during the fire to the fuse metal and melts it.

In addition, the combination of the frame and the locking portion is secured by a locking ring provided between the upper and lower fastening members on the inner surface of the frame, which has the advantage of making the opening and closing part close to the end of the nozzle in a solid and uniform state, but in case of a fire As the locking ring is detached from the frame, there is another problem of delaying the distribution of fire water as described above.

Also, when the sprinkler head is transported or installed, and the impact is applied to the locking part exposed to the frame after installation, the position of the locking ring is changed, resulting in a change in the coupling force, which in turn causes a fluctuation in pressure to press the packing. There was a problem leaking.

Therefore, the present invention was devised to solve such a problem, and prevents leakage by preventing the external shock from being directly transmitted to the valve blocking the outlet port during the transport, installation, and installation of the sprinkler head. In addition, the purpose of the present invention is to provide a sprinkler to minimize the fire damage by increasing the pressure of the fire water acting in the head while spraying a large amount of fire water in a wide range while ensuring rapid and accurate operation in the event of a fire.

The present invention for achieving the above object is a frame screwed to the lower end of the head having a nozzle, a lifting member having a ring member and a diffusion unit integrally provided in the space between the nozzle and the frame and the diffusion portion, and the diffusion portion A sprinkler head comprising an opening and closing portion provided in the center and an unlocking portion having a heat sensing portion and an soluble body under the opening and closing portion, the sprinkler head comprising: an opening and closing portion having an sheet in which an O-ring is inserted into the lower end of the inner surface of the nozzle; A fixed upper disk having a plurality of guides provided in a radial form on the bottom face toward the center from the outer circumferential surface and having a first hole in the center, and a seating groove and a plurality of ball supports on the outer circumferential surface and having a rib and a second in the center A variable lower disk integrally having a hole, a ball provided between the guide and the ball support, a sleeve fitted into the first and second holes, a spring seated in a seating groove of the variable lower disk, and a female screw of the sleeve. A pressurizing screw fitted to press the sheet, a heat collecting plate provided with a plurality of thin disk plates, an insulating ring sandwiched between the variable lower disk and the heat collecting plate, a soluble body inserted in the center of the heat collecting plate, a soluble body, a heat collecting plate, and an insulating ring. And a locking screw fixed to the variable lower disk, and an unlocking portion having a cap of a ball structure.

1 is an exploded perspective view of a sprinkler head according to the present invention.

2a to c is a longitudinal sectional view showing an operating state of the sprinkler head according to the present invention.

Figure 3 is a longitudinal sectional view showing another embodiment according to the present invention.

Figure 4 is a longitudinal cross-sectional view showing a state in which the buried cover to the sprinkler according to the present invention.

5 is a bottom exploded perspective view of the buried cover according to the present invention.

Figure 6 is an exemplary view showing another embodiment of the sprinkler head according to the present invention.

FIG. 7 is a perspective view of portion A of FIG. 6; FIG.

<Brief description of symbols for the main parts of the drawings>

12: Opening and shutting part 13: Unlocking part

14: Oring 16: sheet

17: Sleeve 18: Fixed upper disk

19: variable lower disk 21: ball

23: Pressure screw 24: Thin disk plate

25: heat collecting plate 26: insulation ring

27: available body 28: set screw

29: Cap 30: Guide

31: First hole 32: Seating groove

33: ball support 34: rib

35: The second hole

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

The sprinkler head 1 according to the present invention has a hexagonal flange 4 with a screw 3 formed thereon so as to be connected to an end of a pipe 2 line, as shown in FIGS. The head 6 having the head 5, the frame 8 having the locking jaw 7 at its lower end by being screwed to the inner surface of the flange 4, the outer surface of the nozzle 5 and the frame 8. In the space provided by the inner surface of the lifting member 11 and the opening and closing portion 12 provided in the center of the lifting member 11 and the diffusion unit 10 integrally provided with a ring member 9 and the diffusion unit 10 provided to be movable up and down And it is composed of an unlocking portion 13 provided below the opening and closing portion (12).

Here, the opening and closing part 12 is composed of a sheet 16 provided with a groove 16a into which the O-ring 14 is inserted into the center of the circumferential surface, and one side of the O-ring 14 is formed on the inner surface of the lower end of the nozzle 5. It is provided to touch.

In addition, the O-ring 14 is larger than the width (width) of the groove (16a) is preferably provided to be forcibly inserted, even if the cross-section of the groove (16a) as shown in Fig. 3 or more O-ring The airtight force can be improved by forcibly inserting (14a).

The unlocking part 13 is installed at the lower end of the opening and closing part 12 to open the nozzle 5 so that the fire water is ejected in the event of a fire while maintaining the state in which the nozzle 5 is normally closed. 17 is provided between the fixed upper disk 18 and the variable lower disk 19 and the circumferential surfaces of the fixed upper disk 18 and the variable lower disk 19 which are provided vertically by the spring 20 in the center direction. A ball control part 22 having a ball 21 movably provided by an elastic force, a pressure screw 23 screwed to the sleeve 17 to press the sheet 16, and a plurality of thin disk plates ( The heat collecting plate 25 provided with 24, the insulating ring 26 sandwiched between the variable lower disk 19 and the heat collecting plate 25, the soluble body 27 inserted into the center of the heat collecting plate 25 and the soluble body 27, the heat collecting plate 25 and the insulating ring 26, the variable lower disk It consists of a set screw 28 to be fixed to the center of (19) and a cap 29 inserted into the set screw (28).

The fixed upper disk 18 is formed with a plurality of guide holes 30 provided in a radial shape on the bottom face toward the center from the outer circumferential surface and the first hole 31 is integrally provided at the center. The guide 30 is preferably to have a concave curved shape to the top, it is more preferable to provide about six guides 30 to secure the fixing force.

The variable lower disk 19 is provided in an inverted triangular shape and has a seating groove 32 formed at a predetermined depth in the center thereof, and a rib 34 connected to an outer surface of the seating groove 32 is formed in the frame 8. It is provided to be caught by the locking jaw (7). Moreover, the 2nd hole 35 which fits in the said sleeve 17 is integrally provided.

The sleeve 17 inserted into the first and second holes 31 and 35 of the fixed upper disk 18 and the variable lower disk 19 has a female thread portion 36 formed therein, and is fixed to the upper portion of the outer peripheral surface. A protrusion 37 having a shape of a hexagonal ring for preventing the upper disk 18 from being separated is provided.

The ball 21 provided between the circumferential surface of the fixed upper disk 18 and the variable lower disk 19 is supported by the guide 30, the ball support 33 and the inner surface of the frame 8 by three points. It is preferable to provide so that it may be, and it is more preferable to have an angle of about 60 ° with respect to the first and second holes 31 and 35.

The pressure screw 23 is screwed to the female threaded portion 36 of the sleeve 17 is in close contact with the sheet 16 to the nozzle (5) side to prevent the occurrence of leakage phenomenon as the portion that is in contact with the sheet 16 It protrudes curvedly, and the external thread part 38 is formed in the outer side surface. In addition, the center of the lower portion is provided with a wrench groove 39 that is tightened using a wrench.

The plurality of thin disk plates 24 constituting the heat collecting plate 25 include a first disk plate 42 having a first recess 41 having a third hole 40 and a fourth hole 43 in the center thereof. ) Is composed of a second disk plate 45 provided with the first uneven portion 44 having a) and a third disk plate 48 having a second uneven portion 47 having the fifth hole 46 formed therein. . The third disk plate 48 is provided with a concave-convex ring 49 having a protrusion shape at an inner side having a predetermined distance from the circumferential surface to increase the heat absorption rate.

The insulating ring 26 is to prevent the heat transferred through the heat collecting plate 25 to be transferred to the upper side so that the upper surface of the first disk plate 42 has the same height as the lower surface of the variable lower disk 19. It is provided in the form of a ring inserted into the first recess 41.

The fixing screw 28 is provided with a screw head 54 having the same diameter as the diameter of the second concave-convex portion 47 formed in the third disk plate 48, so that the ring-shaped soluble body 27 is lowered. At the same time, the threads 55 and 56 are integrally provided with inner and outer circumferential surfaces, respectively, to fix the soluble body 27, the heat collecting plate 25, and the insulating ring 26 to the variable lower disk 19. The screw 28 is provided integrally.

Moreover, the inside is provided so that it may have a predetermined | prescribed step hole 28a, and the spherical cap 29 which has a ball structure is inserted in this step hole 28a.

In the present invention, when using the heat collecting plate 53 surrounding the unlocking portion 13 having the heat collecting plate 25 exposed on the lower outer peripheral surface of the frame 8 when the accidentally dropped by the worker during the transport and installation process To prevent the sprinkler head from being damaged.

In addition, as shown in Figures 4 and 5 when the sprinkler head is installed on the ceiling when using the buried cover 54 to cover the heat collecting plate 25 exposed to the outside of the heat collecting plate ( 25) can be prevented from being damaged, and in case of painting with the same color as the ceiling, it can be harmonized with the surrounding aesthetics.

The buried cover 54 is a conical cover 54a having a conical shape provided to cover the bottom and side surfaces of the heat collecting plate 25, and a cover fixture 54b for fixing the conical cover 54a to the heat collecting plate 25. It consists of.

The conical cover 54a is provided in an open state. The cover fastener 54b is provided with a bent support portion 54e having a plurality of engaging pieces 54d at the edge of the hexagonal plate 54c provided to be coupled in a separated state.

The conical cover 54a and the cover fixture 54b are fixed to the upper surface of the conical cover 54a and the lower surface of the hexagonal plate 54c by melting the lead 54f to bond (low-temperature soldering). have. Lead is more preferably inserted into a predetermined depth in a state in which a hole is formed in the hexagonal plate and melted and attached in the inserted state.

The buried cover 54 is engaged with the inner surface of the support portion 54c when the cover fixture 54b provided on the upper surface of the conical cover 54a is pushed toward the heat collecting plate 25 while the sprinkler head is installed. The piece 54d is fixed by being caught by the edges of the first and third disk plates 42 and 48 of the heat collecting plate 25.

Meanwhile, in the present invention, a plurality of thin plate-shaped plates are used to increase the heat absorption and transfer efficiency of the heat collecting plate 25, but as shown in FIGS. 6 and 7, a cylindrical enclosure having a sidewall 50 having an open top surface ( 51 and the other heat collecting plate 53 which is integrally provided with the hot air inlet 52 cut off a part of the side wall, the same effect can be obtained while preventing the heat collecting plate 53 from being easily damaged from external impact. Can be.

The sprinkler head configured as described above is applied to the circumferential surfaces of the fixed upper disk 18 and the movable lower disk 19 at the same time as the impact is applied to the unlocking part due to a mistake of an operator or a user after installation, transportation and installation. The impact is mitigated by the plurality of balls 21 to prevent delivery to the sheet 16 to prevent fire water from leaking.

In this state, if a fire occurs or the temperature of the sprinkler head rises due to other reasons, the temperature of the conical cover 54a rises together, and when the temperature reaches a certain temperature (about 52 ° C), The conical cover 54a is separated from the cover fastener 54c by the recorded portion, so that the user can check and take prompt action.

As the temperature rises further in this state, heat is transferred to the center through the circumferential surfaces of the first, second, and third disk plates 42, 45, 48 of the heat collecting plate 25 exposed to the lower end of the frame 8. do.

At this time, a large amount of heat is absorbed in a short time by the protrusion-shaped uneven ring 49 provided near the circumferential surface of the third plate 48.

Soluble body inserted between the second uneven portion 47 of the third plate 48 and the upper surface of the screw head 54 of the fixing screw 28 while the absorbed heat reaches about 72 ° C to 105 ° C ( 27) begins to melt.

As the soluble body 27 is melted, the elastic lower disk 19 located at the lower end of the sleeve 17 is pushed downward by the elastic force of the spring 20, so that the bottom of the fixed upper disk 18 and the movable lower disk 18 are lowered. The interval of (19) is opened.

As the gap increases, the supporting force acting between the guide 30 and the ball support 33 is lowered, and the fixed upper disk 18 is moved downward by the pressure of the fire water, so that the ball 21 is framed. As shown in FIG. 2C, the locking jaw 7 provided at the inner side of the 8 moves toward the center along the guide 30.

The ball 21 moving along the guide port 30 is spaced apart from the locking jaw 7 and the unlocking part 13 is separated from the frame 8 to fall to the floor.

Then, while the diffusion portion 10 having the sheet 16 fitted to the tip of the nozzle 5 exits, one side of the ring member 9 provided on the upper portion of the platform 11 is the inner surface of the frame 8. By catching the locking jaw 7 provided in (shown in FIG. 2C), the fireproof water is ejected to spread the fireproof water to the fired space through the diffusion unit 10 to extinguish the fire.

The present invention configured as described above prevents the shock from being transmitted to the seat by being cushioned by a plurality of balls provided at the unlocking part even when an impact is applied from the outside during the process and installation of the sprinkler head and the installation. This prevents the fire water from leaking and at the same time, it is effective to extinguish the fire early by making a quick and accurate operation when a fire occurs.

Claims (3)

A frame screwed to the lower end of the head having the nozzle, a lifting member having a ring member and a diffusion part integrally provided in the space between the nozzle and the frame, the opening and closing portion provided at the center of the diffusion portion, and the opening and closing portion In the sprinkler head which consists of an unlocking part which has a heat sensing part and a soluble body below, An opening and closing portion 12 having a sheet 16 into which an O-ring 14 is inserted into the lower end of the inner surface of the nozzle; A fixed upper disk 18 having a plurality of guides 30 provided radially on the bottom face toward the center from the outer circumferential surface and having a first hole 31 at the center, and a plurality of seating grooves 32 and the outer circumferential surface. A variable lower disk 19 having a rib support 34 and a second hole 35 at the center thereof, and a ball provided between the guide 30 and the ball support 33; 21, a sleeve 17 fitted into the first and second holes 31 and 35, a pressurizing screw 23 fitted into the sleeve 17 and pressing the sheet 16, and a plurality of thin disk plates. A heat collecting plate 25 provided with a 24, an insulating ring 26 sandwiched between the variable lower disk 19 and the heat collecting plate 25, a soluble body 27 inserted into the center of the heat collecting plate 25, It consists of a set screw 28 for fixing the soluble body 27, the heat collecting plate 25 and the insulating ring 26 to the variable lower disk 19, and an unlocking portion 13 having a cap 29 of the ball structure. Characterized by sprinkler head. According to claim 1, wherein the heat collecting plate 25 is provided with a cylindrical housing 51 having a side wall with an open upper surface, and a hot air inlet portion 52 bent inwardly by cutting a part of the side wall integrally. Sprinkler head. The sprinkler head according to claim 1, wherein the conical cover (54a) is fixed by a cover fastener (54b) having a support (54e) having a locking piece (54d) formed on an outer circumferential surface of the heat collecting plate (25).