JP3608342B2 - Sprinkler fire extinguishing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention, Ri engages the sprinkler fire extinguishing facility of a building, more particularly, to a sprinkler fire extinguishing facility example Bei headers plurality of sprinkler head is connected via a pipe.
[0002]
[Prior art]
Sprinkler fire extinguishing equipment is generally connected to a water main that is connected to a water flow detector, etc., and branch pipes are connected to main pipes installed on the back of the ceiling of each floor of the building at predetermined intervals. A down pipe is provided, and a sprinkler head is connected to the tip of the down pipe so that a part thereof is exposed from the ceiling plate to the room. In this case, each sprinkler head is installed in a positional relationship such that a predetermined amount of fire extinguishing water can be discharged within a predetermined range when a fire occurs (prior art 1).
[0003]
Recently, for example, as described in JP-A-6-125999, a branch joint having a plurality of screw-type take-out connection ports on the outer peripheral portion is directly connected to the water supply main pipe and taken out to the take-out connection port. There is also a piping structure in which a pipe portion is screwed and a flexible pipe is connected from the take-out pipe portion to an attachment pipe portion of a sprinkler head fixed to the ceiling (prior art 2).
[0004]
[Problems to be solved by the invention]
Prior art 1 requires many steel pipes, and the sprinkler heads are not necessarily installed at regular intervals due to the state of the back of the ceiling or the arrangement of the room, etc., so that the branch pipes connected to the main pipes are processed. There is a problem that a great deal of labor and cost is required, such as requiring technology, and the equipment cost is high.
[0005]
Moreover, in the prior art 2, when connecting a branch joint in the axial direction of a water supply main branch pipe, the problem like the prior art 1 can be solved. However, when installing a branch joint perpendicular to the main water supply pipe through a joint body or elbow, etc., in order to connect more flexible pipes, the vertical direction is perpendicular to the main water supply pipe. When connecting multiple branch joints to a joint, the connection between the slab of the building and the ceiling plate is extremely narrow, so that the joint body, upper and lower branch joints, or water stop screws are connected to the branch joint. Since the male screw and the female screw are provided, the length in the vertical direction becomes long, and it may be difficult to connect the branch joint and installation may be impossible.
[0006]
Furthermore, the outer diameter of the branch joint is almost the same as the outer diameter of the joint body and elbow. Therefore, the male screw and female thread provided on the branch joint are also larger, so the joint body, elbow, between the branch joints, and between the branch joint and the water stop Since a large force is required to connect to the screw, a large jig and a large work space are required, and when removing the water stop screw to add a branch joint, the existing branch joint is connected to the joint body and elbow. There are various problems such as the possibility of water leakage due to loosening.
[0007]
The present invention has been made to solve the above-mentioned problems, and a plurality of headers having a plurality of connection ports can be stacked and installed between a narrow slab and a ceiling plate, and the assembly work is also performed. it is intended to obtain easy sprinkler fire extinguishing facility.
[0008]
[Means for Solving the Problems]
The sprinkler fire extinguishing equipment according to the present invention is connected to a sprinkler water supply pipe and has a coupling member having a plurality of screw holes, a header coupled to the coupling member and having a plurality of screw insertion holes, and coupled to a lower end portion of the header. An end cap having a plurality of screw insertion holes, and a fixing screw that is inserted into a screw insertion hole penetrating through the top and bottom of the end cap and the header, and is screwed into the screw hole of the coupling member to be coupled together. And a main body portion of the header is formed in a flat plate shape in a block shape, and a plurality of headers are stacked in the vertical direction between the coupling member and the end cap.
[0009]
The above-mentioned header is constituted by a main body having a water supply port penetrating vertically, and a plurality of connection ports that communicate with the water supply port and open to the side and to which a sprinkler head is connected via a pipe. A concave groove for arranging a seal member is provided on the outer periphery of the mouth.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1
FIG. 1 is an explanatory diagram of Embodiment 1 of the present invention, and FIG. 2 is an exploded perspective view of a joint member and a header thereof. In the figure, reference numeral 1 denotes a sprinkler fire extinguishing equipment installed between a slab 61 and a ceiling board 62 of a building, and 2 denotes a main pipe installed close to the slab 61. 3 is a joint connected to the main pipe 2, 10 is a header assembly including the header 20, 71 is a sprinkler head partially protruding from the opening 63 and fixed to the ceiling plate 62, and 72 is a header 20 and sprinkler head 71 is a flexible pipe made of metal or resin which is a pipe connecting 71.
[0012]
The joint 3 has a thread at one end and a female thread at the other end. The joint pipe 4 is connected to the main pipe 2, a connecting pipe 5 provided orthogonal to the joint pipe 4, and a plurality of screw insertions. It has a hole 7 and is formed in a substantially T shape by a flange 6 provided at the end of the connecting pipe 5.
[0013]
The header assembly 10 includes a coupling member 11, a header 20, an end cap 30, and the like. The coupling member 11 is provided at one end of a connecting portion 12 that has a water supply port 13 that penetrates vertically and is supplied with water for fire extinguishing. A flange 14 having a plurality of screw insertion holes 15 and coupled to the flange 6 of the joint 3, and a header flange 16 having a plurality of screw holes 17 having a smaller diameter than the flange 14 provided at the other end. Yes. The screw hole 17 may be a screw insertion hole, and a nut may be provided on the top.
[0014]
As shown in FIG. 3, the header 20 has a water supply port 22 that penetrates up and down in the center and is supplied with water for fire extinguishing, and has an outer diameter that is substantially equal to the outer diameter of the header flange 16 of the coupling member 11. It consists of a substantially disc-shaped main body 21 and a plurality of connection ports 23 a, 23 b, 23 c, and 23 d that protrude from the outer wall of the main body portion 21 at substantially equal intervals, and each of the connection ports 23 a to 23 d has a water supply port 22. Are provided with screw holes 24a, 24b, 24c, 24d. Reference numeral 25 denotes a concave groove provided concentrically on the outer periphery of the water supply port 22, for example, a seal member such as an O-ring is provided. Reference numeral 26 denotes a screw insertion hole penetrating in the vertical direction between adjacent connection ports 23b and 23c and 23d and 23a. The thickness t of the header 20 is desirably as thin as possible within a range that does not hinder the provision of the screw holes 24a to 24d in the connection ports 23a to 23d.
[0015]
The end cap 30 is formed with an outer diameter substantially equal to the outer diameter of the main body portion 21 of the header 20, and is provided with a concave groove 31 in which a seal member is disposed, and a plurality of screw insertion holes 32 penetrating in the vertical direction. It has been. Reference numeral 35 denotes a fixing screw.
[0016]
In order to assemble the header assembly 10 composed of each part as described above, for example, the coupling member 11 is placed on the work table with the flange 14 facing down, and the seal disposed in the concave groove 25 on the header flange 16. The header 20 is placed through the member, and the screw insertion hole 26 is aligned with the screw hole 17 of the header flange 16. If necessary, one or more headers 20 are further placed on the header 20 via a seal member, and the screw insertion holes thereof are aligned with the screw insertion holes 26 of the lowermost header 20. Next, the end cap 30 is placed on the uppermost header 20 via a seal member, and the screw insertion hole 32 is aligned with the screw insertion hole 26 of the header 20.
[0017]
Then, the fixing screw 35 is inserted from the screw insertion hole 32 of the end cap 30 into the screw insertion hole 26 of the header 20 and screwed into the screw hole 17 provided in the header flange 16 of the coupling member 11. As a result, as shown in FIG. 4, the coupling member 11, the header 20, and the end cap 30 are coupled together, and the assembly of the header assembly 10 is completed. At this time, each water supply port 13 and 22 is located on the same line, and is sealed watertight by the sealing member. Such work is performed in advance in a factory or the like, but may be performed on site.
[0018]
When the header assembly 10 as described above is attached to the main pipe 2 for piping, the flange 14 of the coupling member 11 connected to the main pipe 2 in advance is contacted with the flange 14 of the coupling member 11 via a seal member. The nut may be screwed and fixed to the bolts that are in contact with each other and are inserted into the screw insertion holes 7 and 15. In this case, either one of the screw insertion holes 7 and 15 provided in the flanges 6 and 14 of the joint 3 and the coupling member 11 is used as a screw hole, and a bolt is directly screwed into the screw hole to couple them together. Also good.
[0019]
Next, one male screw of the connecting pipe 36 having screws at both ends is screwed into the screw holes 24 a to 24 d of the header 20 and fixed. Then, one connection nut 73 of the flexible pipe 72 having connection nuts 73 at both ends is screwed into the male thread of the connection pipe 36, and the other connection nut 73 is attached to the ceiling plate 62 in advance. Piping is completed when screwed into the male screw and fixed. When there is a screw hole that is not used in the header 20, a water stopcock is screwed into the screw hole.
[0020]
In the present embodiment configured as described above, the header 20 does not have a male screw or a female screw for connecting to the coupling member 11, the other header 20, and the end cap 30, and is formed in a flat plate shape. Since the fixing screw 35 inserted into the screw insertion hole 32 of the cap 30 is screwed into the screw hole l7 of the coupling member 11 through the screw insertion hole 26 of the header 20 and these are integrally coupled, the assembling work is extremely difficult. In addition, the height of the header assembly 10 can be reduced. This is very effective when installed behind a ceiling where the height is limited.
[0021]
Further, since the fixing screw 35 having a diameter much smaller than the outer diameter of the connecting portion 12 of the coupling member 11 is used, an assembling operation is easy and a special jig for screwing is not required.
Further, when the header 20 is added, the end cap 30 can be easily removed by loosening the fixing screw 35, so that the extension work can be performed easily and in a short time.
[0022]
Embodiment 2
FIG. 5 is an exploded perspective view of Embodiment 2 of the present invention. In addition, the same code | symbol is attached | subjected to this same part as Embodiment 1, and description is abbreviate | omitted.
Reference numeral 40 denotes a coupling member, and a semicircular contact portion 43 having an inner diameter substantially equal to the outer diameter of the main pipe 2 and screw insertion holes 45 provided on both sides of the upper end portion of the connecting portion 41 having the water supply port 42. A fixed arm 44 is provided, and a header flange 46 having a screw hole 47 is provided at the lower end.
Reference numeral 48 denotes a fixing bracket, which includes a semicircular contact portion 49 having an inner diameter substantially equal to the outer diameter of the main pipe 2 and a fixing arm 50 having screw insertion holes 51 provided on both sides thereof. Reference numeral 2a denotes an opening provided in the main pipe 2.
[0023]
The procedure for assembling the header assembly 10 with the coupling member 40, the header 20, the end cap 30 and the fixing screw 35 as described above is the same as in the case of the first embodiment.
[0024]
The header assembly 10 assembled in a factory or the like abuts the abutting portion 43 of the coupling member 40 on the lower surface of the main pipe 2 via a seal member, and aligns the water supply port 42 with the opening 2 a of the main pipe 2. . Next, the abutting portion 49 of the fixing bracket 48 is opposed to the abutting portion 43 of the coupling member 40 so as to abut the upper surface of the main pipe 2, and the bolt 52 is inserted into the screw insertion hole 45 of the coupling member 40 from the screw insertion hole 51. The nut 53 is screwed through and the main pipe 2 and the two are joined together. Thereby, the attachment to the main piping 2 of the header assembly 10 is completed. At this time, the opening 2a of the main pipe 2, the coupling member 40, and the water supply ports 42 and 22 of the header 20 are located on the same line.
The connection between the header 20 and the sprinkler head 71 by the flexible pipe 72 is the same as in the first embodiment.
[0025]
In the present embodiment, substantially the same effect as in the case of the first embodiment is obtained. In particular, in this embodiment, the joint 3 in the first embodiment is omitted, and the coupling member 40 is directly attached to the main pipe 2. As a result, the height of the header assembly 10 can be further reduced. Moreover, when such a coupling member 40 is used, the header 20 can be coupled only by cutting out a part of the main pipe 2, so that the workability is improved.
[0026]
Embodiment 3
FIG. 6 is a plan view and a front view showing an example of a header according to the third embodiment of the present invention. In this embodiment, the main body portion 21a of the header 20a is formed in a substantially circular and thin block shape, provided with a water supply port 22 and a concave groove 25 at the center thereof, and part of the outer wall at substantially equal intervals. A plurality of connection ports 23a, 23b, 23c, and 23d are cut out flatly, and screw holes 24a, 24b, 24c, and 24d communicating with the water supply ports 22 are provided in the connection ports 23a to 23d, respectively, and adjacent screw insertions are made. Screw insertion holes 26 are provided between the holes 24a and 24b, 24b and 24c, 24c and 24d, and 24d and 24a, respectively.
[0027]
In the example of FIG. 7, the main body portion 21 a of the header 20 a is formed in a flat square shape with a thin block shape, the water supply port 22 and the concave groove 25 are provided in the center, and the side wall communicates with the water supply port 22. Screw holes 24a, 24b, 24c, and 24d are provided to form connection ports 23a, 23b, 23c, and 23d, and screw insertion holes 26 are provided at four corners.
[0028]
Further, in the example of FIG. 8, the main body portion 21 a of the header 20 a is formed in a flat rectangular shape with a thin block shape, and a water supply port 22 and a concave groove 25 are provided at the center thereof, and the water supply port 22 is communicated with the central portion. The laterally long water passage 24 is provided, screw holes 24a, 24e communicating with the water passage 24 on the short side wall, and screw holes 24b communicating with the water passage 24 or the water supply port 22 on the long side wall, 24c, 24d, 24f, 24g and 24h are provided to form connection ports 23a to 23h. In this example, eight flexible pipes 72 can be connected to one header 20a. is there. Reference numeral 26 denotes a screw insertion hole provided between the adjacent screw holes 24a to 24h.
[0029]
Also in the present embodiment, the procedure for integrally coupling the coupling member 11 (or 40), the header 20a and the end cap 30 with the fixing screw 35 is the same as in the first and second embodiments, but the coupling member 11 (or 40) the header flange 16 (or 46) and the end cap 30 are formed in a shape corresponding to the planar shape of the header 20a, and these screw insertion holes 17 (or 47) and 32 are formed in the screw insertion holes of the header 20a. It is desirable to provide for 26. In addition, the planar shape of the header 20a in this embodiment is not limited to a circle or a quadrangle, and can be formed in a suitable shape.
[0030]
In each of the above embodiments, the case where the coupling member 11 (or 40) is connected to the main pipe 2 via the joint 3 or directly is shown. However, a branch pipe or a down pipe (connected to the main pipe 2) Hereinafter, the main pipe 2, branch pipes, and downfall pipes may be collectively referred to as sprinkler water supply pipes) via the joints 3 or directly connected to the coupling member 11 (or 40).
Moreover, the connection means to the sprinkler water supply pipe | tube of the coupling member 11 (or 40) is not limited to the said embodiment, A suitable connection means can be used.
Further, in FIGS. 6 and 7 of the first and second embodiments and the third embodiment, the case where the four connection ports 23a to 23d to which the flexible pipe 72 is connected is shown. It is not limited, and it may be two or more.
Moreover, although the case where the water supply port 22 penetrated up and down was provided in the header 20 was shown, for example, the header 20 and the end cap 30 are integrally formed to provide the bottomed water supply port 22 that opens only at the top. May be.
[0031]
【The invention's effect】
Sprinkler fire extinguishing equipment according to the present invention is connected to a sprinkler feed pipe, a coupling member having a plurality of screw holes, coupled to said coupling member, and a header having a plurality of screw insertion holes, the lower end of the header An end cap that is coupled and has a plurality of screw insertion holes; and a fixing screw that is inserted into a screw insertion hole that extends vertically through the end cap and the header and is screwed into the screw hole of the coupling member to be integrally coupled The header main body is formed into a flat plate-like block, and a plurality of headers are stacked in the vertical direction between the coupling member and the end cap. The assembly of the header assembly and connection to the sprinkler water supply pipe are easy, and the addition of the header can be easily performed. Furthermore, since no screws or the like are provided in the vertical direction, the thickness can be reduced. Therefore, the height of the header assembly can be reduced, and it can be easily installed on a narrow ceiling in the vertical direction. Further, since the plurality of headers are stacked in the vertical direction, a large number of sprinklers can be connected to the header provided in one place by piping, and the piping can be simplified.
[0032]
Further, the header is constituted by a main body having a water supply port penetrating vertically, and a plurality of connection ports that communicate with the water supply port and open to the side and to which a sprinkler head is connected via a pipe, Since a concave groove for disposing a seal member is provided on the outer periphery of the water supply port, when connecting a plurality of headers or headers and other members, a seal member is disposed in the concave groove to seal water tightly. And fire fighting water will not leak.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing an overall configuration of Embodiment 1 of the present invention.
FIG. 2 is an exploded perspective view of a main part of FIG.
3 is a plan view of the header of FIG. 1 with a portion shown in cross section.
4 is a front view of the header assembly of FIG. 1. FIG.
FIG. 5 is an exploded perspective view of Embodiment 2 of the present invention.
FIGS. 6A and 6B are a plan view and a front view of a header according to a third embodiment of the present invention. FIGS.
FIGS. 7A and 7B are a plan view and a front view of another example of the header according to the third embodiment of the present invention. FIGS.
FIGS. 8A and 8B are a plan view and a front view of still another example of the header according to the third embodiment of the present invention. FIGS.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sprinkler fire extinguishing equipment 2 Main piping 3 Joint 10 Header assembly 11, 40 Connecting member 16 Header flange 17 Screw hole 20, 20a Header 21, 21a Main part 13, 22, 42 Water supply port 23-23h Connection port 24 Water flow path 24a- 24h Screw hole 25, 31 Groove 26, 32 Screw insertion hole 30 End cap 35 Fixing screw 43, 49 Abutting part 44, 50 Fixing arm 48 Fixing bracket 61 Slab 62 Ceiling plate 71 Sprinkler head 72 Flexible pipe

Claims (2)

A connecting member connected to the sprinkler water supply pipe and having a plurality of screw holes;
  A header coupled to the coupling member and having a plurality of screw insertion holes; an end cap coupled to the lower end of the header and having a plurality of screw insertion holes;
  A fixing screw that is inserted through a screw insertion hole penetrating the top and bottom of the end cap and the header, and screwed into the screw hole of the coupling member to be coupled together;
  The main body of the header is formed into a block shape with a flat plate shape,
  A sprinkler fire extinguishing equipment, wherein a plurality of headers are stacked in a vertical direction between the coupling member and the end cap. A main body having a water supply port penetrating the header up and down, and a plurality of connection ports that communicate with the water supply port and open to the side and to which a sprinkler head is connected via a pipe , sprinkler fire extinguishing facility according to claim 1, characterized in that a concave groove which is disposed a seal member on the outer periphery.

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