JP2747968B2 - Sprinkler equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprinkler device.

[0002]

2. Description of the Related Art For example, in a sprinkler apparatus using a closed type sprinkler head, the structure around the sprinkler head is generally as shown in FIG. In other words, fire extinguishing water for watering having a predetermined water pressure, via an appropriate branching header from the main pipe which is a pipe in the ceiling portion in the space, is supplied to a connection port 103 disposed in the opening 102 of the ceiling board 101 ing. A screw is cut in the inner peripheral surface of the connection port 103, and the sprinkler head 104
Is connected to the connection portion 10 so as to cover the opening 102.
5 is screwed into the connection port 103 to be mounted and fixed.

[0003]

However, when screwing the connecting portion 105 of the sprinkler head 104, the mounting member 105 which engages with the outer peripheral surface of the sprinkler head 104 as shown in FIG. It is necessary to tighten and fix it with a dedicated mounting jig 106, and in view of work on the ceiling, the work environment is extremely poor, it takes time, and the work productivity is low. Was.

[0004] Furthermore, in the sprinkler apparatus of this type, prior to installing the sprinkler head 104 for the watering must be carried out pressure testing of the fire extinguishing water supplied to the connecting port 103. In this respect, the conventional connection port 103 is a simple opening type in which an inner peripheral surface is threaded, so that an appropriate plug is attached at the time of a water pressure test, and then the plug is removed and the sprinkler head 104 is removed. Had to take the steps of attaching.

[0005] Therefore, the water filled in the pipeline during the water pressure test must be drained once, and then after the sprinkler head 104 is attached, it is necessary to refill the pipeline with water. This was also a problem with the increase in the amount of work.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and in mounting a sprinkler head, it is possible to reduce the number of mounting steps and to simplify the mounting operation itself, and to cope with the above-described water pressure test. In view of the above, an object of the present invention is to provide a sprinkler apparatus having extremely good workability as a whole and to solve the above-mentioned problems.

[0007]

According to a first aspect of the present invention, a cylindrical socket is fixed to a connecting portion of a sprinkler head, and the socket is connected to one end of a cylindrical head support. A sliding member is provided on the outer periphery of the insertion portion so that the socket inserted into the insertion portion can be watertightly inserted into the insertion portion, and the outer periphery of the insertion portion is slid in the axial direction to lock the socket inserted into the insertion portion. The sprinkler device is configured to be locked when the sprinkler is closed.

In this case, the sliding member may be constantly urged downward.

According to a third aspect of the present invention, a valve is provided above the insertion portion in the head support so as to slide in the axial direction so that the head support can be closed, and the valve is urged downward. The sprinkler device according to claim 1 or 2, wherein the head support body is always closed and the valve body is pushed up by an insertion operation of the socket.

In the sprinkler device configured as described above, an opposing flat portion may be provided on the outer periphery of the head support, as described in claim 4.

Further, the other end of the head support in each of these sprinkler devices may form a tapered flange portion as described in claim 5, and in that case, as described in claim 6, As described above, the flange portion may be formed by expanding the other end portion of the head support with a diameter.

Further, in place of the above-mentioned collar portion, a seventh aspect of the present invention is provided.
As described in the above, a ball seat having an annular recess toward the outside in the axial direction may be provided at the other end of the head support.

[0013]

According to the sprinkler device of the first aspect,
Insert the socket integrated with the sprinkler head into the head support in a state where the sliding body is pushed up by an appropriate tool or the like, and then return the sliding body downward, the socket is locked by the head support, and the sprinkler is locked. The head is fixed to a head support.

In this case, according to the second aspect, since the sliding body is constantly urged downward, it is not necessary to return the sliding body downward, and the state of pushing up the sliding body by the tool or the like is released. By itself, the sprinkler head is automatically secured to the head support.

According to the sprinkler device of the third aspect, a valve element which is opened in conjunction with the insertion operation of the socket is provided above the insertion portion in the head support, and the sprinkler is inserted by the insertion of the socket. Before the fixing operation of the head, the inside of the head support is closed.
Therefore, the water pressure test can be performed as it is,
If the operation of fixing the sprinkler head by the socket insertion operation is performed as it is after the completion of the test, the valve element opens the flow path in the head support.

In the case where a flat portion facing the outer periphery of the head support is provided, the head portion is fixed to the flat portion by an appropriate bracket or by tightening with a bolt or the like. The support can be easily and firmly fixed to a channel material or the like passed in the ceiling space.

According to a fifth aspect of the present invention, when the sprinkler device has a tapered opening at the other end of the head support, the collar constitutes a component of the joint connection. I do. Further, flexible watertight connection with another pipe member having the ball seat portion at one end according to claim 7 can be easily performed. Moreover, the entire head support can be manufactured from commercially available steel pipes and unnecessary pipe materials while forming the components for such joint connection.

In this case, when such a flange portion is formed by expanding the other end portion of the head support member into a diameter, the manufacturing is further facilitated and the number of constituent members is reduced. I can do it. In order to perform such a diameter-expanding forming process, for example, a Belling process can be employed.

According to a seventh aspect of the present invention, when a ball seat having an annular recess toward the outside in the axial direction is provided at the other end of the head support, the fifth aspect of the present invention provides a second aspect of the present invention. Flexible and watertight connection with another tube having a flange at one end can be easily performed. That is, the O-ring is attached to the dent portion, the ball seat portion and the collar portion having the above-described shape are butted against each other, and then, an appropriate housing material is covered from the outer periphery of the collar portion and the outer periphery of the ball seat portion. It may be tightened. Then, the O-ring between the collar portion and the ball seat portion ensures watertightness, and also ensures appropriate flexibility by abutting the collar portion having the tapered opening and the ball seat portion. Further, since such a connection is realized by tightening an appropriate housing material, connection and separation can be easily and quickly performed by tightening or loosening the housing material.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. In the figure, the sprinkler head 3 is
Indicates a state in which it is mounted and fixed.

The head support 2 has a tubular shape as a whole obtained by appropriately cutting and pressing a commercially available steel pipe into round sections and press-forming. 4, a valve housing part 5 having the same diameter as the insertion part 4, a fixing part 6 having a flat part facing the outer periphery, and a flange part 7 having a tapered opening formed by forming a diameter at the upper end part. ing.

An appropriate number of through holes are formed in the outer periphery of the insertion portion 4, and the ball body 11 can freely protrude to the inner periphery of the insertion portion 4 through the through holes. A cylindrical coupler ring 12 serving as a sliding body is slidably provided on the outer periphery of the insertion portion 4, and is urged downward by a spring 13.

A protrusion 14 is formed on the inner periphery of the coupler ring 12, and a release portion 15 is formed below the protrusion 14 to have a substantially tapered inner periphery with a large diameter. I have. And under normal conditions, the spring 1
The coupler ring 12 urged downward by 3 projects the ball body 11 into the insertion portion 4 through a through hole formed in the insertion portion 4 by the projection 14 thereof. Coupler ring 12 against urging force
Is pushed up, the ball body 11 is configured to be located at the release portion 15. Reference numeral 16 denotes an annular stopper fixed to the outer periphery of the head support 2.

A built-in valve 21 as shown in FIG. 2 is mounted in the valve housing 5. As shown in the drawing, the built-in valve 21 has a cylindrical valve box 23 having a small-diameter opening 22 serving as a flow path at a lower end surface thereof, and a valve body 24 capable of closing the opening 22. It is constituted by. The valve body 24 has a shaft body 25 at an upper part thereof, and a push-up rod 27 which is horizontally mounted at a lower part thereof through a suitable fitting 26.

On the other hand, an annular concave portion 28 is formed on the outer periphery near the upper end portion of the valve box 23. With the formation of the annular concave portion 28, the upper end of the annular convex portion projecting to the inner periphery of the valve box 23 is formed as shown in FIG. A locking body 29 as shown is arranged. The locking body 29 has a guide cylinder 30 at the center, and around the guide cylinder 30, four substantially fan-shaped openings 31 forming a flow path are formed. The shaft 25 of the valve body 24 is slidably inserted into the guide cylinder 30 of the locking body 29 via a spring 32.

The built-in valve 21 having the above structure is provided in the valve housing 5 of the head support 2. When inserting the valve into the valve housing 5, an O-ring 33 is attached to the annular recess 28. The O-ring 33 is inserted until it fits into an annular groove 34 formed on the inner periphery of the valve housing 5, and the upper end of the valve box 23 is inclined between the valve housing 5 and the fixed portion 6. The part 35 is locked. Then, the locking body 29 of the built-in valve 21 is locked to the slope portion 35. As a result, the valve body 24 is urged downward by the spring 32, and the opening 22 is always closed.

On the other hand, the head support 2 having such a configuration
The sprinkler head 3 attached to and fixed to the conventional sprinkler head 104 can be of the same type as the conventional general sprinkler head 104 described in the above-described related art.

The sprinkler head 3 has a substantially disc-shaped heat-sensitive fuse 41 on the lower surface, and has a generally inverted truncated cone shape as a whole. As shown in FIG. 1, eight opening holes 42 communicating with the inner space of the sprinkler head 3 are formed in the slope. Then, as shown in FIG. 4, when the sprinkler head 3 is mounted and fixed to the head support 2 at a position where the sprinkler head 3 is located in the pair of opposed opening holes 42 as viewed from the lower surface and fits in the opening hole 42. A through screw hole 43 is formed at a position of the head support 2 immediately below the coupler ring 12, and a screw 44 is screwed into each of the through screw holes 43.

A socket 51 is screwed to the outer periphery of the connecting portion 45 of the sprinkler head 3 having such a configuration.
The socket 51 has an outer diameter slidable in the insertion portion 4, and an annular groove 52 is formed on the outer periphery near the upper end thereof, and an O-ring 53 is mounted in the annular groove 52. I have. An annular stopper 54 is fixed to the outer periphery of the lower end of the socket 51.

At a predetermined position of the socket 51, there is provided a receiving hole 55 for receiving a protruding portion of the aforementioned ball body 11 into the insertion portion 4. At the position where the lifting of the socket 51 is stopped by the stopper 54, the receiving hole 55 is set so as to correspond to the through hole for projecting the ball 11 formed in the insertion portion 4. At this time, the upper end of the socket 51 simultaneously pushes up the push-up rod 27 to release the closed state of the opening 22 by the valve element 24.

The sprinkler head 3 according to the above configuration
The head support 2 to which is mounted and fixed is fixed to a channel member 62 in a ceiling space by a mounting bracket 61 as shown in FIG. That is, the mounting bracket 61 is
A fastening portion 64 to which the fixing member 3 is fixed;
A holding portion 65 formed integrally with the top and bottom of the head support 2 to hold both sides of the fixed portion 6 of the head support 2 and a locking portion 66 formed by bending the tip of each holding portion 65 inward at a right angle. Further, a wing bolt 67 is threaded through the nut 63.

While holding both sides of the fixing portion 6 of the head support 2 with the holding portion 65, the locking portion 66 is locked to the end of the channel material 62, and the side end surface of the channel material 62 is fixed to the fixing portion 6. The head support 2 is fixed to the channel member 62 by abutting the one flat portion, and tightening the wing bolt 67 to press the protruding end thereof to the other flat portion of the fixing portion 6. . In this case, since the contact surface with the channel material 62 and the pressing surface of the wing bolt 67 are both flat portions in the fixing portion 6, the fixing is firm and easy.

The insertion portion 4 of the head support 2 fixed to the channel member 62 as described above is inserted into a mounting opening 70 preliminarily formed at a predetermined position in the base board 68 and the finishing board 69 on the ceiling. Is located. And at the upper end of the head support 2 fixed in such a predetermined position,
One end of the connecting flexible pipe 71 branched from the main pipe via the branch header is jointly connected.

One end of the connecting flexible tube 71 is configured as shown in FIG. That is, an inner tube 73 having a bellows shape is fixed watertight between the inner circumference of one pipe 72 and the inner circumference of another pipe (not shown), and the outer circumference of the inner tube 73 is further fixed. An outer tube 74a is passed between the outer periphery of the tube 72 and the outer periphery of the other tube so as to be covered with the outer tube 74a. It has a fixed structure.

The inner tube 73 is fixed to the inner periphery of the tube 72 by bulging. That is, an annular groove is formed in the tube body 72, and then an annular O-ring mounting groove is formed on the outer periphery of a portion corresponding to the annular groove in the inner tube 73, and the O-ring mounting groove is formed in the O-ring mounting groove.
Attach. Then, the end of the inner tube 73 in this state is inserted into the tube 72, and then the inserted portion of the inner tube 73 is bulged toward the inner peripheral wall of the tube 72 by bulging. Then, while the O-ring 75 is pressed, the O-ring mounting groove portion is extruded into the annular groove, whereby the end of the inner tube 73 is watertightly fixed to the inner periphery of the tube 72. A ball seat 77 having an annular recess 76 is fixed to the outer periphery of the connection end of the tube 72 by, for example, laser welding.

The connecting flexible tube 71 according to the above configuration is jointly connected to the upper end of the head support 2 as follows. First, the connecting flexible pipe 71
After the O-ring 78 is attached to the concave portion 76 of the ball seat portion 77, the flange portion 7 of the head support 2 and the ball seat portion 77 face each other, and from the outside of the ball seat portion 77 and the collar portion 7, 2
The housing 79 constituted by the two half-circles 70a and 79b is covered, and the joint is connected by tightening the housing.

As described above, the watertightness of the jointed connection portion is ensured by the O-ring 78 which is interposed between the collar portion 7 and the ball seat portion 77 and pressed by both. Until the edge of the collar 7 abuts against the inner peripheral wall of the housing 79, this connecting portion is flexible. Therefore, when connecting flexible connecting pipes having the same degree of flexibility, the flexibility of the joint connecting portion is higher than that of the conventional connecting pipe because of the flexibility of the joint connecting portion. Has a high degree of freedom when connecting the head support.

The sprinkler device 1 according to the present embodiment is constructed as described above. The head support 2 is supported and fixed to the channel member 62 in the ceiling space by the above-mentioned means. The connecting flexible pipe 71 branched from a main pipe (not shown) is jointly connected to an upper end of the connecting pipe.

In order to mount and fix the sprinkler head 3 from the indoor side to the head support 2 supported and fixed in the ceiling space in this manner, the coupler ring 12 on the outer periphery of the insertion portion 4 is appropriately fixed to a jig. And push up to get the ball 1
1 is positioned at the release portion 15 so that the inside of the insertion portion 4 can be inserted, and then the socket 51 integrated with the sprinkler head 3 is inserted into the insertion portion 4. Then, the ball 11 protrudes and enters the receiving hole 55 of the socket 51. In this state, the coupler ring 12
When the ball body 11 is lowered as it is,
Projecting into the receiving hole 55, the socket 51 is locked, and this locked state is maintained. Thus, the socket 51 is mounted and fixed in the insertion section 4.

When the socket 51 is inserted, the upper end thereof pushes up the push-up rod 27 to release the closed state of the opening 22 by the valve body 24.
The flow path of the inner is open, fire extinguishing water of the sprinkler head 3 to the flow passage is reached, in which sprinkler device 1 is movable state. Therefore, after the head support 2 is filled with water and a predetermined water pressure test is performed, it is possible to directly proceed to the mounting and fixing work of the sprinkler head 3. Therefore, compared with the conventional method of once installing a plug or the like at the time of performing a predetermined hydraulic pressure test, draining the pipe after the test is completed, attaching the sprinkler head, and then filling the pipe again with water, the sprinkler device is in a movable state. It is possible to reduce the man-hours required for the operation, and to shorten the construction period accordingly.

Next, in mounting and fixing the above-described sprinkler head 3, the sprinkler head mounting device developed by the present inventor and a sprinkler head using the sprinkler head mounting device in order to save labor and mechanize the sprinkler head. 3 will be described.

FIG. 7 shows an example of such a sprinkler head mounting device 81. The sprinkler head mounting device 81 includes a mounting portion 82 for mounting a lower portion of the sprinkler head 3 integrated with the socket 51. And a locking device 83 provided on the side of the mounting portion 82 and a push-up device 85 provided with a push-up rod 84.

The mounting portion 82 is connected to a cylinder member 87, which is constituted by a hydraulic cylinder or a pneumatic cylinder, and is built in a cylindrical casing 86 serving as a main body of the sprinkler head mounting device 81. It is configured to be vertically movable by driving a cylinder member 87. Further, the support device 83 is provided with a locking pin 88 that can freely protrude from the horizontal direction in the above-described opening hole 42 formed in the slope of the sprinkler head 3. And the lifting device 85
Is connected to a dedicated cylinder member 89 such as a hydraulic cylinder or a pneumatic cylinder built in the casing 86, and is configured to drive the lifting rod 84 up and down by driving the cylinder member 89. ing.

Further, on the side of the casing 86 of the sprinkler head mounting device 81, a perforating device 91 constituted by, for example, a commercially available electric hand drill is provided via an appropriate mounting bracket 90. A hole cutter 92 for drilling the above-described mounting opening 70 in the base board 68 and the finishing board 69 is attached to the upper end portion.

The sprinkler head mounting device 81 having such a configuration is provided at a predetermined position of the aerial work vehicle developed by the present inventor. FIG. 8 shows an example of such an aerial work vehicle. As shown in FIG. 8, the aerial work vehicle 93 has a main body 94 made of an appropriate frame material. Wheel 95 with stopper on the bottom
And a drive wheel 96 that is rotated by a drive mechanism such as a motor.

The main body 94 is provided with a rotating boom 97. The rotary boom 97 has a double configuration of an outer cylinder and an inner cylinder, and is rotatable by an appropriate drive mechanism. This drive mechanism may be shared with the drive mechanism of the drive wheel 96. The rotary boom 97
Is provided above a lifting device 98 driven by a hydraulic mechanism, and is vertically movable by the lifting device 98.

The sprinkler head mounting device 81 is fixed to the upper end of the rotating boom 97 having such a configuration via an appropriate attachment 99. The mounting center of the socket 51 in the mounting portion 82 of the sprinkler head mounting device 81 and the rotation center of the hole cutter 92 of the punching device 91 are on the same circumference with the center of rotation of the rotating boom 97 as its center. positioned.

The operation of mounting and fixing the sprinkler head 3 to the head support 2 using the sprinkler head mounting device 81 and the aerial work vehicle 93 according to the above configuration will be described. First, the sprinkler head shown in FIG. 3. Remove the screw 44 in the opening 42 of the third,
The through screw hole 43 is exposed. Next, the sprinkler head 3 integrated with the socket 51 is set on the mounting portion 82 while the push-up rod 84 is inserted into the through screw hole 43, and the locking pin 88 of the locking device 83 is further set. The sprinkler head 3 is projected horizontally into the opening hole 42 of the sprinkler head 3. As a result, the sprinkler head 3 is firmly locked to the mounting portion 82, and a stable lifting operation is performed without shaking even during a lifting operation described later.

After being moved to a predetermined mounting and fixing position by the aerial work vehicle 93, first, the lifting / lowering device 98 is driven to raise the rotary boom 97 thereabove, and the sprinkler head mounting device is moved to the predetermined working position. Raise 81 as a whole. Thereafter, the lifting device 85 is moved by the cylinder member 89.
Is lifted to push up the coupler ring 12 of the head support 2, so that the coupler ring 12 can be inserted into the insertion section 4. In this state, the cylinder member 87 is driven to raise the mounting portion 82 as it is, and the socket 51 integrated with the sprinkler head 3 is pushed up and inserted into the insertion portion 4.

In such a case, the lifting rod 84 functions as a guide, and the locking pin 88 of the locking device 83 maintains the sprinkler head 3 in a stable state. Push-up and insertion of the sprinkler head 3 is performed extremely smoothly.

When the socket 51 integrated with the sprinkler head 3 reaches a predetermined position, the push-up rod 84 is first lowered to fix the socket 51 into the insertion portion 4 by the coupler ring 12, and thereafter If the locking pin 88 of the locking device 83 is retracted from the opening hole 44 on the slope of the sprinkler head 3, the sprinkler head 3
Of the sprinkler device 1 to the head support 2 is completed. Thereafter, the mounting section 82 may be lowered as it is.

In this way, the sprinkler head 3 can be mounted and fixed to the head support 2 of the sprinkler device 1 extremely easily and quickly, and the operator can stand on a stepladder or the like to mount the special jig as in the conventional case. It is extremely labor-saving and mechanized compared to the work of tightening and fixing. Therefore, the work productivity has been greatly improved.

The sprinkler head mounting device 8 mounted on the rotating boom 97 of the aerial work vehicle 93 described above.
1, the socket 51 of the mounting portion 82
And the center of rotation of the hole cutter 92 of the punching device 91 are located on the same circumference with the center of rotation of the rotating boom 97 as its center.
After a predetermined mounting opening is drilled in the ceiling by using the rotary boom 2, the rotating boom 97 is turned by a predetermined angle as it is, and the mounting portion 8
The mounting center of the socket 51 in 2 can be located at the center immediately below the mounting opening. So after that,
At that position, it is only necessary to raise the push-up rod 84 and the mounting portion 82 as they are, so that a series of operations can be performed extremely smoothly, and the work productivity can be further improved.

Further, if the aerial work vehicle 93 is further provided with a laser spot device for positioning, and this laser spot device is configured to correspond to the black-out position on the floor surface, the work can be performed more quickly. At the same time, it is possible to realize a more mechanized automation method. Such an effect is also obtained by the configuration unique to the sprinkler device according to the present invention.

In view of the fact that the inside of the head support 2 is always filled with water, appropriate anticorrosion treatment should be applied to the inner peripheral surface and the joint connection with the flexible connecting pipe 71. In this case, it is preferable to apply resin lining or Kanigen plating, for example. This makes it possible to reliably prevent corrosion due to, for example, a natural electrode potential difference.

[0056]

According to the sprinkler device of the first aspect, the sprinkler head can be easily and quickly fixed to the head support.

According to the second aspect of the present invention, the sprinkler head is automatically fixed to the head support simply by releasing the push-up state of the sliding body. It can be fixed to a support. Further, since the fixing operation is only the pushing operation of the socket and the sliding body, it is easy to cope with mechanization.

According to the third aspect of the present invention, the sprinkler device is normally closed, and the head support is opened only when the sprinkler head is fixed by inserting the socket. Can be implemented. After the test is completed, the flow path in the head support is opened normally by fixing the sprinkler head by inserting the socket. Therefore, the drainage and refilling work required in the above-described conventional apparatus becomes unnecessary, and the number of work steps is reduced, and the sprinkler apparatus can be installed simply and quickly.

According to the sprinkler device of the fourth aspect, it is easy to fix the head support to the channel material or the like passed in the ceiling space, for example, as described in the embodiment. Can be done firmly.

According to the sprinkler device according to the fifth, sixth and seventh aspects, the joint connection with the connecting flexible pipe branched and connected from the main pipe can be performed easily and quickly. In addition, since the joint connection portion has appropriate flexibility, the degree of freedom of the piping layout and the workability are improved. In addition, the main components can be manufactured from commercially available steel pipes or pipes that are no longer needed, and the cost can be reduced. In particular, in the case of the sixth aspect, the configuration of the collar portion, which is a joint connection component, can be easily performed, and the number of manufacturing steps and cost can be further reduced.

[Brief description of the drawings]

FIG. 1 is a partially sectional front view of a sprinkler device according to an embodiment of the present invention.

FIG. 2 is a front sectional view of a built-in valve according to the embodiment.

FIG. 3 is a plan view of a locking body of the built-in valve.

FIG. 4 is a bottom view of the sprinkler head in the embodiment.

FIG. 5 is a front view showing a state in which the sprinkler device according to the embodiment is fixed to a channel material on a ceiling.

FIG. 6 is an essential part cross-sectional view showing a state where a connecting flexible pipe is jointly connected to a head support in the sprinkler device according to the example.

FIG. 7 is a front view of a sprinkler head mounting device used when mounting the sprinkler head of the sprinkler device according to the embodiment.

FIG. 8 is an explanatory view of an aerial work vehicle equipped with the sprinkler head mounting device of FIG. 7;

FIG. 9 is a partial cross-sectional front view of a sprinkler device according to the related art.

FIG. 10 is a perspective view of a mounting jig used for mounting a sprinkler head of a sprinkler device according to the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sprinkler apparatus 2 Head support 3 Sprinkler head 4 Insertion part 5 Valve storage part 6 Fixed part 7 Collar part 11 Ball body 12 Coupler ring 13 Spring 21 Built-in valve 22 Opening 24 Valve body 27 Push-up rod 32 Spring 45 Connection part 51 Socket 53 O-ring 55 Receiving hole 61 Mounting bracket 62 Channel material 71 Connecting flexible tube 75 O-ring 76 Depressed part 77 Ball seat part

Claims (7)

(57) [Claims] 1. A cylindrical socket is fixed to a connecting portion of a sprinkler head, and the socket is made water-tightly insertable into an insertion portion at one end of a cylindrical head support, and the outer periphery of the insertion portion is slid in the axial direction. A sprinkler, characterized in that a sliding body capable of locking a socket inserted into the insertion portion is provided on the outer periphery of the insertion portion, and the locking is performed when the sliding body is positioned below. apparatus. 2. The sprinkler device according to claim 1, wherein the sliding member is constantly biased downward. 3. A valve body which is slidable in the axial direction and is capable of closing the head support body is provided above the insertion portion in the head support body. The sprinkler device according to claim 1 or 2, wherein the valve body is configured to be closed, and the valve body is configured to be pushed up by an insertion operation of the socket. 4. The sprinkler device according to claim 1, wherein opposed flat portions are provided on an outer periphery of the head support above the insertion portion. 5. The head support according to claim 1, further comprising a tapered flange provided at the other end of the head support.
The sprinkler device according to 2, 3, or 4. 6. The sprinkler device according to claim 5, wherein the collar portion is formed by expanding the other end of the head support with a diameter. 7. The head support according to claim 1, wherein the other end of the head support is provided with a ball seat having an annular recess toward the outside in the axial direction. Sprinkler equipment.