JP3243567U - side wall sprinkler head - Google Patents

Abstract

An object of the present invention is to provide a side wall type sprinkler head of a concealed type that expands the watering area of the side wall type sprinkler head and prevents lodgement. [Solution] A main body 1 has a nozzle at one end, a heat-sensitive operating section 3 is installed at the other end, a valve 2 for closing the nozzle is disposed between the heat-sensitive decomposition section and the nozzle, and a guide ring 44 is disposed in the main body. The support cup 5 is inserted into the outer periphery of the other end and connected to the deflector 41 via the rod 42. The support cup 5 accommodates the main body inside, one end is connected to the main body, the other end is an opening 52, and the cover plate 6 closes the opening, the spring 44b is installed between the flat surface 51 on one end side of the support cup and the guide ring, the deflector is installed between the heat-sensitive actuating part and the cover plate, and the flange 47 on which the guide ring is seated is A guide plate 45 disposed at the other end of the main body and extending parallel to the axis A is provided at the periphery of the guide ring with a cutout through which a guide plate 45 can pass. [Selection diagram] Figure 1

Description

TECHNICAL FIELD The present invention relates to a fire-fighting sprinkler head, and more particularly to a side wall-type sprinkler head installed on a wall.

The side wall sprinkler head is installed on the upper wall of the room. A nozzle is installed on one end side of the sidewall type sprinkler head, and the nozzle is connected to a water supply pipe installed in the wall surface. The tip of the heat-sensitive operating portion arranged on the other end side protrudes from the wall surface into the room.

The side wall sprinkler head has a main deflector installed perpendicular to the water discharge direction of the nozzle and a sub-deflector installed parallel to the floor surface. Since the positional relationship between the two deflectors has a great influence on the water sprinkling performance, it is desirable to have a structure in which the positional relationship between the main deflector and the sub-deflector is always kept constant.

The side wall sprinkler head of Patent Document 1 is of the concealed type, and the heat-sensitive operating portion is covered with a cover plate. This side wall sprinkler head has a deflector installed between the heat-sensitive operating part and the cover plate. After the cover plate falls off in the event of a fire, the spring pushes the rod connected to the deflector into the room. there is This prevents interference between the deflector and the constituent parts of the thermally actuated portion when the thermally actuated portion is disassembled.

JP 2014-76241 A

In the above concealed type side wall sprinkler head, increasing the size of the deflector can be considered as one means of enlarging the watering area. However, in the concealed type, there is a restriction that the components such as the deflector and the heat-sensitive actuator must be housed inside the support cup or cover plate. Therefore, the increased size of the deflector narrows the gap between adjacent parts, which increases the risk of lodgement when the parts are moved or when the heat-sensitive operating portion is disassembled.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a side wall sprinkler head that has a concealed type side wall sprinkler head with an enlarged watering area and prevents lodgement.

In order to achieve the above objects, the present invention provides the following side wall sprinkler head.
That is, the main body is hollow and has a nozzle connected to a water supply pipe at one end, a heat-sensitive operating part is installed at the other end, a valve is arranged between the heat-sensitive decomposition part and the nozzle, and connects the outlet of the nozzle. a support cup containing the body inside, one end connected with the body and an opening at the other end, a cover plate having a flat surface covering the opening, and the support cup A guide ring is inserted through the outer periphery of the other end of the body and connected to the deflector through a rod, and a spring is disposed between the plane of the one end of the support cup and the guide ring. is installed to urge the guide ring toward the other end of the support cup, the deflector is arranged perpendicular to the nozzle axis and installed between the heat-sensitive actuating part and the cover plate. , a flange is disposed at the other end of the body, the guide ring is seated during operation, a guide plate extending parallel to the nozzle axis is installed on the periphery of the guide ring, and the flange is mounted on the guide during operation. A side wall sprinkler head with a recess through which a plate can pass.

According to the above configuration, since the guide ring is urged by the spring, the deflector is separated from the thermally actuating part in a state in which the cover plate is removed, that is, before the thermally actuating part is activated. Sometimes the component falls off without interfering with the deflector. Therefore, the size of the deflector can be increased to obtain a wider watering area.

Also, when the guide ring and the deflector move, the guide plate installed on the guide ring moves along the lacking portion of the flange, so that the guide ring can be prevented from rotating about its axis during movement. This allows the guide ring to move smoothly along the nozzle axis, thereby preventing lodgement.

When the valve body is opened after the movement of the guide ring, water is discharged from the nozzle and collides with the deflector. The force of the water at this time causes the deflector to vibrate, but the guide ring is seated over the entire circumference of the flange to prevent vibration. Further, the guide plate prevents rotation of the guide ring about its axis due to the aforementioned vibrations. This provides stable water sprinkling performance.

When the guide plate and the lacking part are installed away from the rod, the guide ring is supported by the guide plate and the two rods at three points when the guide ring moves, and the plane of the guide ring is vertical to the nozzle axis. Frictional resistance during movement can be reduced by maintaining Also, if a cylindrical sleeve is installed between the guide ring and the outer circumference of the other end of the main body, the frictional resistance between the outer circumference of the main body and the inner circumference of the guide ring is reduced. Further, the aforementioned flanges can be placed on the ends of the sleeve.

When a pipe is installed between the rod and the guide ring and the rod is slidable inside the pipe, the rod can be extended and retracted, and the distance between the thermal decomposition part and the deflector can be further extended during operation. can. Specifically, one end of the pipe is fixed to the guide ring, and the other end is an opening through which the rod can enter and exit. At this time, if the cross-sectional area of the hole near the opening of the pipe is made smaller than the cross-sectional area of the hole on the one end side, the gap between the rod and the pipe becomes smaller after the sprinkler head is activated, and the vibration of the rod is suppressed and stabilized. A watering pattern is obtained.

As described above, according to the sidewall-type sprinkler head of the present invention, the watering area can be expanded and the movement of the guide ring can be performed smoothly to prevent lodgement.

1 is a cross-sectional view of a side wall sprinkler head of the present invention; FIG. FIG. 2 is a cross-sectional view taken along the line aa with the axis A in FIG. 1 as a boundary; FIG. 3 is an exploded perspective view of the sprinkler; It is a figure explaining the connection of a rod and a pipe, (a) shows the state before connection, (b) shows the state after connection. FIG. 2 is a view showing a state in which a cover plate is removed in FIG. 1; FIG. 6 is a diagram showing the deflector and the guide ring exposed to the indoor side in the state of FIG. 5; FIG. 2 is a view showing the side wall sprinkler head of FIG. 1 in operation;

Embodiments of the present invention will be described with reference to FIGS. 1 to 7. FIG. The side wall sprinkler head 100 is of the concealed type and includes a main body 1 , a valve 2 , a heat sensitive operating part 3 , a water spraying part 4 , a support cup 5 and a cover plate 6 .

The main body 1 has a cylindrical shape and has a nozzle 11 on the inside of one end and a male screw 12 on the outside for connection with a water supply pipe. The exit side of the nozzle 11 is a cylindrical frame 13 , and the inner peripheral diameter of the frame 13 is larger than the inner peripheral diameter of the nozzle 11 . A step 14 is provided on the inner circumference of the end of the frame 13 to which the heat-sensitive operating part 3 is locked.

The valve 2 is disc-shaped, is installed at the outlet of the nozzle 11, and closes the nozzle 11 in normal times. A heat-sensitive operating part 3 is installed on the opposite side of the nozzle 11 side of the valve 2 . The thermal actuator 3 is anchored in the step 14 as previously described to support the valve 2 against the outlet end of the nozzle 11 .

The heat-sensitive operating part 3 is decomposed by the heat of the fire, and is composed of a lever, a support plate, a balancer, a cylinder, and the like. The structure of the heat-sensitive operating portion 3 is known, and the detailed structure is described in Japanese Patent Application Laid-Open No. 2012-80961, so a description thereof will be omitted here.

The sprinkler section 4 is composed of a deflector 41 , a rod 42 , a pipe 43 , a guide ring 44 and a sleeve 46 . The deflector 41 is plate-shaped and has a plurality of slits. The deflector 41 is arranged on the extension of the axis A of the nozzle 11 and intersects the axis A vertically. In FIG. 1, the upper side of the deflector 41 is a sub-deflector 41a that is bent toward the nozzle 11 side. The deflector 41 is connected to one end of the rod 42 , and the rod 42 is installed on the deflector 41 at two locations.

As shown in FIG. 3, the other end of the rod 42 has a flange 42a, which is inserted through the hole of the pipe 43. As shown in FIG. The outer diameter of the collar 42 a is slightly smaller than the inner diameter of the hole of the pipe 43 , so that the rod 42 can slide inside the pipe 43 .

One end of the pipe 43 is fixed to the guide ring 44, and the other end is an opening 43a through which the rod 42 can enter and exit. The cross-sectional area of the hole near the opening 43a of the pipe 43 is configured to be smaller than the cross-sectional area of the hole on the one end side. As a result, the distance between the rod 42 and the hole near the opening 43a is narrowed near the opening 43a. Moreover, since the collar 42a cannot pass through the portion having a small cross-sectional area near the opening 43a, it has the function of preventing the rod 42 from slipping out of the pipe 43. As shown in FIG. As a specific connection structure between the rod 42 and the pipe 43, as shown in FIG. By compressing the shape in the vicinity of 43a from a plurality of locations on the outer peripheral side toward the axis of the hole, the cross-sectional area of the hole can be made smaller than the original shape.

The guide ring 44 has an annular shape, and the frame 13 is inserted therein. The pipe 43 is connected to the guide ring 44 as described above. The guide ring 44 is connected with the deflector 41 via the pipe 43 and the rod 42 . An outer edge 44a of the guide ring 44 is bent to the side opposite to the installation surface of the pipe 43. As shown in FIG. A spring 44b is installed inside the outer edge 44a, and one end of the spring 44b is seated on a flat surface 51 of the support cup 5, which will be described later. The other end of the spring 44b biases the guide ring 44 in the direction in which the nozzle 11 discharges water.

In the guide ring 44 shown in FIG. 6, a guide plate 45 is installed at a position separated from the two pipes 43 . The guide plate 45 is bent to the side opposite to the outer edge 44a and extends parallel to the central axis A of the nozzle 11. As shown in FIG. The tip of the guide plate 45 reaches the vicinity of the aforementioned sub-deflector 41a. At this time, the sub-deflector 41a is arranged at a position closer to the axis A than the guide plate 45 is. The two pipes 43 are arranged on a straight line L passing through them and the central axis A, and a guide plate 45 is arranged at a position separated from the straight line L. The straight line L and the plane of the guide plate 45 are arranged substantially parallel.

A sleeve 46 is installed between the inner circumference of the guide ring 44 and the outer circumference of the frame 13 . The sleeve 46 is fixedly installed on the main body 1 and has a tubular shape covering the frame 13 , and the guide ring 44 can move parallel to the axis A along the outer circumference of the sleeve 46 . The sleeve 46 is provided with an outwardly enlarged flange 47 . A flange 47 is formed at the end of sleeve 46 and is located near step 14 of frame 13 .

The shape of the flange 47 is provided with a missing portion to avoid interference with the pipe 43 and the guide plate 45 . More specifically, as shown in FIG. 3, it has a cutout portion 47b provided at a position that intersects the guide plate 45 and a cutout portion 47c that prevents interference with the pipe 43. As shown in FIG. The guide plate 45, the missing portion 47b, etc. prevent the guide ring 44 from rotating about the axis A when the guide ring 44 is moved, in addition to preventing interference between parts.

The support cup 5 is cylindrical and arranged outside the frame 13 . A flat surface 51 is installed at one end of the support cup 5 , and the flat surface 51 is arranged between the frame 13 and the male screw 12 . The other end of the support cup 5 has an opening 52 . The aforementioned guide ring 44 is accommodated between the frame 13 and the support cup 5 .

The cover plate 6 has a disc shape and is arranged so as to close the opening 52 . A cylindrical retainer 61 is interposed between the cover plate 6 and the opening 52 . One end of the retainer 61 is connected to the peripheral surface of the support cup 5 and the other end is joined to the cover plate 61 by a fusible alloy 62 . ing.

Next, the operation of the side wall sprinkler head of the present invention will be described.

The sidewall type sprinkler head 100 is connected to a water supply pipe P installed inside the wall surface W as shown in FIG. A support cup 5 is accommodated inside the wall surface W, and only a cover plate 6 is exposed from the inside of the room. When a fire breaks out, the fusible alloy 62 joining the cover plate 6 and the retainer 61 melts and the cover plate 6 falls off (see FIG. 5). Then, the guide ring 44 is moved in the water discharge direction of the nozzle 11 by the repulsive force of the spring 44b and is locked by the flange 47. As shown in FIG. At this time, the guide plate 45 moves along the cutout portion 47b to prevent the guide ring 44 from rotating about the axis A. As shown in FIG. A similar effect can be obtained by the pipe 43 and the cutout portion 47c.

Following the removal of the cover plate 6, the heat-sensitive operating part 3 is disassembled. Components of the heat-sensitive operating part 3 are discharged outside from between the support cup 5 and the deflector 41 . As a result, the valve 2 supported by the heat-sensitive operating part 3 is also separated from the nozzle 11, and the water filled in the water supply pipe P is discharged from the nozzle 11 (see FIG. 7).

Water flows in the direction of the axis A and collides with the deflector 41 . The water that collides with the deflector 41 passes through the slit or flows along the surface of the sub-deflector 41a and is scattered in the room, and the water is also sprayed on the wall W in which the water supply pipe P is installed, causing a fire. Suppress and suppress.

1 body
2 valves
3 Heat-sensitive operating part
4 Sprinkler
5 support cup
6 cover plate
11 nozzle
13 frames
14 steps
41 Deflector
41a sub-deflector
42 Rod
43 Pipe
44 guide ring
44b spring
45 guide plate
46 sleeve
47 flange
51 plane
61 Retainer

In order to achieve the above objects, the present invention provides the following side wall sprinkler head.
That is, the main body is hollow, has a nozzle connected to a water supply pipe at one end, a heat-sensitive operating part at the other end, and a valve disposed between the heat-sensitive operating part and the nozzle to control the outlet of the nozzle. a support cup containing the body inside, one end connected with the body and an opening at the other end, a cover plate having a flat surface covering the opening, and the support cup A guide ring is inserted through the outer periphery of the other end of the body and connected to the deflector through a rod, and a spring is disposed between the plane of the one end of the support cup and the guide ring. is installed to urge the guide ring toward the other end of the support cup, the deflector is arranged perpendicular to the nozzle axis and installed between the heat-sensitive actuating part and the cover plate. , a flange is disposed at the other end of the body, the guide ring is seated during operation, a guide plate extending parallel to the nozzle axis is installed on the periphery of the guide ring, and the flange is mounted on the guide during operation. A side wall sprinkler head with a recess through which a plate can pass.

According to the above configuration, since the guide ring is urged by the spring, the deflector is separated from the heat-sensitive operating section in a state in which the cover plate is removed, that is, before the heat- sensitive operating section operates. Sometimes the component falls off without interfering with the deflector. Therefore, the size of the deflector can be increased to obtain a wider watering area.

When a pipe is installed between the rod and the guide ring and the rod is slidable inside the pipe, the rod can be extended and contracted, and the distance between the heat-sensitive operating part and the deflector can be further extended during operation. can. Specifically, one end of the pipe is fixed to the guide ring, and the other end is an opening through which the rod can enter and exit. At this time, if the cross-sectional area of the hole near the opening of the pipe is made smaller than the cross-sectional area of the hole on the one end side, the gap between the rod and the pipe becomes smaller after the sprinkler head is activated, and the vibration of the rod is suppressed and stabilized. A watering pattern is obtained.

Claims (7)

The main body is hollow, has a nozzle connected to a water supply pipe at one end, and a heat-sensitive operating part at the other end. A valve is arranged between the heat-sensitive decomposition part and the nozzle to close the outlet of the nozzle. cage,
The support cup accommodates the main body inside, is connected to the main body at one end, and is open at the other end,
a cover plate having a flat surface that closes the opening and is installed on the other end side of the support cup;
The guide ring is inserted through the outer periphery of the other end of the main body and connected to the deflector via a rod,
a spring disposed between a plane on one end of the support cup and the guide ring to urge the guide ring toward the other end of the support cup;
The deflector is installed between the thermally actuated portion and the cover plate,
a flange is located at the other end of the body and seats the guide ring in operation;
A sidewall type sprinkler head, wherein a guide plate extending parallel to the nozzle axis is installed on the periphery of the guide ring, and the flange has a recess through which the guide plate can pass during operation. 2. The side wall sprinkler head of claim 1, wherein said guide plate and said recess are spaced apart from said rod. 3. The sidewall type sprinkler head according to claim 1, wherein a sleeve is installed between the guide ring and the outer circumference of the other end of the main body. 4. The side wall sprinkler head of claim 3, wherein said flange is located at the end of said sleeve. The sidewall type sprinkler head according to any one of claims 1 to 4, wherein the pipe allows the rod to slide therein and is interposed between the rod and the guide ring. 6. A sidewall type sprinkler head according to claim 5, wherein one end of said pipe is fixed to said guide ring and the other end is an opening through which said rod can enter and exit. 7. The side wall sprinkler head according to claim 5 or 6, wherein the cross-sectional area of the hole near the opening of the pipe is smaller than the cross-sectional area of the hole on the one end side.

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