KR100385348B1 - Piping system for sprinkler head - Google Patents

Abstract

The present invention relates to a pipe connecting device installed on the ceiling of a building, such as a sprinkler head for automatic fire extinguishing operation in the event of a fire, and connected to the sprinkler head from a plurality of branch pipes branched from the main pipe of the ceiling. The purpose of the present invention is to provide a sprinkler head installation pipe connection device, which can accurately extract the position of the sprinkler head from the branch pipe, and also does not require a separate fixing means for fixing the sprinkler head to the ceiling half.

When installing the sprinkler head 108 to the ceiling half using the sprinkler head pipe connection device 100 of the present invention by unscrewing the fastening nut 103 connecting to the protruding screw portion 102 of the branch pipe 101 It can be rotated 360 degrees, can be drawn out in the direction of the position to be installed, the horizontal length can be adjusted by the bellows-type pipe length adjusting device (1, 1a, 1b) installed in the horizontal direction, and the bellows-type pipe installed vertically The vertical length can be adjusted by the length adjusting device (1, 1a, 1b), so that the sprinkler head as a pipe connection device made of a flexible pipe can be fixed while the pipe itself is fixed like a threaded pipe connection device by a steel pipe. The installation position of the can be easily withdrawn.

Description

Piping system for sprinkler head {Piping system for sprinkler head}

The present invention relates to a pipe connecting device installed on the ceiling of a building, such as a sprinkler head for automatic fire extinguishing operation in the event of a fire, and connected to the sprinkler head from a plurality of branch pipes branched from the main pipe of the ceiling. will be.

Conventional sprinkler head installation pipe connection device is a screw connection to the elbow and the pipe from the branch pipe of the ceiling to connect or use a connection device using only a flexible pipe. However, since the screw type pipe connecting device does not have a function to adjust the horizontal length and height, it is difficult to accurately draw out the position of the sprinkler installed in the ceiling half-band in the branch pipe, and it is difficult to finely adjust the finishing dimension during the construction work. There is a problem such as requiring skilled workers by long-term experience. And the pipe connecting device by the flexible pipe can be installed by accurately drawing the position of the sprinkler head in the branch pipe by the flexibility of the flexible pipe, but also work by necessarily requiring a separate fixing means to fix the sprinkler head to the ceiling half This is not an easy problem.

The present invention improves the problems of the pipe connection device for the installation of the two sprinkler head can accurately draw the position of the sprinkler head in the branch pipe, and also the sprinkler unnecessary for fixing the sprinkler head to the ceiling half The object is to provide a head connection pipe connection.

1 is a perspective view of the combination of the bellows-type pipe length adjusting device which is an embodiment of the present invention

Figure 2 is a transverse cross-sectional view of the bellows-type tube length adjusting device which is an embodiment of the present invention.

Figure 3 is a combined perspective view of the bellows-type pipe length adjusting device of another embodiment of the present invention

Figure 4 is a cross-sectional view of the bellows-type pipe length adjusting device according to another embodiment of the present invention.

5 is a perspective view of the bellows-type pipe length adjusting device according to another embodiment of the present invention

Figure 6 is a cross-sectional view of the bellows-type pipe length adjusting device according to another embodiment of the present invention.

Figure 7 is a perspective view of the installation state of the pipe connecting device for sprinkler head of the present invention

Explanation of symbols for main parts of the drawings

1, 1a, 1b: bellows-type pipe length adjusting device 2: stainless steel pipe

3: straight pipe part 4: bellows type pipe

5, 5a: Bolt pipe 6, 6a, 6b: Nut pipe

7: tapered portion 8: adhesive portion

9, 9a: polygon 10: retaining ring

11: annular protrusion 12: male threaded portion

13: fixing nut 14: annular locking jaw

15, 15a: clearance prevention nut 16, 16a: left hand thread

17, 17a: right hand thread 18: annular step

19: cylindrical connector

100: sprinkler head piping connection device 101: branch pipe

102: protruding screw portion 103: tightening nut

104: insulation ring 105: packing

106: flange 107: reducer

108: sprinkler head 109: annular projection

110: fantasy catching jaw

The present invention will be described in detail with reference to the accompanying drawings.

1 and 2 is a bellows-type pipe length adjusting device 1 of an embodiment of the present invention, by forming a stainless steel pipe (2) to the bellows-type pipe (4) to the required length and extending to both ends of the bellows-type pipe (4) With the straight pipe portion 3, the one side straight pipe portion 3 has a cylindrical threaded outer peripheral surface of the left screw portion 16 and tapered one end thereof into a tapered portion 7 so as to taper in the direction of the center of gravity and the tapered portion 7 ) And attach the bolt pipe 5 having the adhesive part 8 parallel to the longitudinal direction by welding or pressing, and then one end of the inner circumferential surface is left-handed and the other end is right-handed, and a fastening tool is used. A cylindrical nut tube 6 formed of a polygonal polygonal section 9 in which the longitudinal section of the central portion in the longitudinal direction thereof is polygonal is screwed to the bolt tube 5 adhered to the one straight tube portion 3. The bolt pipe 5 is manufactured in the same manner as the bolt pipe 5, but the outer circumferential surface is formed with another bolt pipe 5, which is screwed to the mounted nut pipe 6, and the other straight pipe part 3 is formed. ) Is bonded by welding or pressing. After adjusting the length of the bellows-type pipe 4 by tightening and loosening the nut pipe 6, the bolt pipe 5 and the nut pipe are fastened by fastening the gap preventing nut 15 to the both bolt pipes 5, respectively. Prevents the play of the pipe due to the play between the screw parts of (6).

The above bellows-type pipe length adjusting device 1 is formed with a left screw portion 16 and a right screw portion 17 on the outer circumferential surfaces of the two bolted pipes 5, respectively. The length of (4) can be adjusted, and the length can be adjusted without the joint part of the pipe, so that the airtightness can be maintained firmly, and both the bolt pipe 5 and the straight pipe portion (3) with the bellows-type pipe (4) in between. ) Are bonded to each other and are integrally connected by screwing the two bolt pipes 5 and the nut pipes 6 to remove the flexibility of the bellows-type pipes 4 so that the pipes are rigid of the stainless steel pipes 2 themselves. While maintaining the structure, it is possible to adjust the length of the pipe fine structure. In addition, the bellows-shaped pipe (4) to give a large gap between the diameter of the annular projection and the recess groove to facilitate the expansion and contraction to form a deep corrugation, and the annular projection and the recess groove is a flexible tube having a conventional spiral corrugation portion Differently, each of the corrugations can be hydraulically or mechanically molded to facilitate expansion and contraction, and the cross-sectional shape of the annular projection and the annular recess of the bellows-shaped pipe 4 is formed into a U-shaped cross section as shown in FIG. 2 of the present invention. Alternatively, it may be molded into a V-shaped cross section or may be molded into various other shapes. The bellows-shaped tube 4 of the U-shaped cross section is not easy to stretch than the bellows-shaped tube of the V-shaped cross section, but is relatively strong in internal pressure, so a thin tube can be used. It is appropriate to use a thick tube because it is relatively weak in pressure.

3 and 4 are bellows-type pipe length adjusting device 1a according to another embodiment of the present invention, and the bellows-type pipe 4 is screwed and loosened by using a bolt pipe 5a and a nut pipe 6a. The structure and function of adjusting the length are the same as in the above embodiment.

The stainless steel pipe (2) is formed into a bellows-shaped pipe (4) to the required length and extends at both ends of the bellows-shaped pipe (4) to have a straight pipe portion (3). The bolt pipe 5a, which is the left-hand threaded portion 16a, and the bolt pipe 5a, which is the right-hand screwed portion 17a, are bonded by welding or pressing. Subsequently, a cylindrical nut tube 6a having a left-side inner thread and a polygonal longitudinal section is screwed into the bolt tube 5a having the left-threaded portion 16a. The nut pipe 6a forms an annular step 18 by reducing the outer diameter of one end portion of the outer circumferential surface thereof so that the cylindrical cylindrical connecting pipe 19 is inserted therein, and the outer circumferential surface is the right screw portion 17a. After fastening the nut pipe 6a of the right-handed thread to the in-bolt pipe 5a, the screw is fastened so that one end of the cylindrical connecting pipe 19 is completely fitted to the annular step 18. The nut tube 6a and the cylindrical connecting tube 19 are bonded by welding or the like. After adjusting the length of the bellows-type pipe 4 by tightening and loosening the nut pipe 6a, the bolt pipe 5a and the nut pipe are tightened by fastening the play prevention nut 15a to the both bolt pipes 5a, respectively. The play of the pipe due to the play between the screw portions of 6a is prevented.

In the above bellows-type pipe length adjusting device 1a, the left screw portion 16a and the right screw portion 17a are formed on the outer circumferential surfaces of the two bolt pipes 5a as shown in the embodiment of FIGS. 1 and 2, respectively. The length of the bellows-type pipe 4 can be adjusted by tightening and loosening the screw of 6a), and the diameter of the nut pipe 6a is made smaller than that of the bellows-type pipe length adjusting device 1 of the embodiment of FIGS. 1 and 2. It is possible to adjust the length without the joint part of the pipe, so that it is surely airtight, and both the bolt pipe 5a and the straight pipe 3 are each having a bellows-type pipe 4 interposed therebetween. By being bonded and integrally connected by screwing the bolts 5a and the nut 6a, the flexibility of the bellows-type pipe 4 is removed, so that the pipe can be maintained while maintaining the rigid structure of the stainless steel pipe 2 itself. The structure that can adjust the fine length of the pipe do.

5 and 6 are the bellows-type pipe length adjusting device 1b of another embodiment of the present invention, and the bellows-type pipe 4 is screwed and loosened by using the bolt pipe 5 and the nut pipe 6b. The function of adjusting the length of is the same as in the above embodiments.

The stainless steel pipe 2 is formed into a bellows-shaped pipe 4 as long as necessary, and extends at both ends of the bellows-shaped pipe 4 so that a straight pipe portion 3 is provided, and a bolt pipe 5 is provided at one straight pipe portion 3. And a fixing ring 10 to the other straight pipe part 3, and then a nut pipe 6b is installed on the fixing ring 10, and the bolted pipe 5 and the bellows-type pipe 4 are interposed therebetween. The length of the bellows-type pipe 4 is adjusted by screwing and screwing the nut pipe 6b together. The bolt tube 5 has the same structure as the embodiment of FIGS. 1 and 2, and forms the outer circumferential surface of the cylindrical tube with a male screw portion and forms one end of the cylindrical tube with a tapered portion 7 to form the tapered portion 7. Extends in the lengthwise direction and has an adhesive part 8 parallel to the longitudinal direction, and attaches the adhesive part 8 to the straight pipe part 3 of the stainless steel pipe 2 by welding or pressing, and the bolt pipe 5. Screw the play prevention nut (15) to the outer circumferential surface of the external thread. Next, the outer circumferential surface of the ring-shaped tube is molded into the male screw portion 12, and the outer circumferential surface one end thereof is a fixed ring 10 formed with an annular protrusion 11 so as to be opposite to the straight pipe portion 3 of the bolt tube 5. ) Is bonded by welding or pressing. Subsequently, the female tube is formed on one side of the cylindrical tube, and the polygonal section 9a having a polygonal longitudinal section is formed on the outer circumferential surface of the other side, and the polygonal section 9a extends to the polygonal section 9a to reduce the diameter and the end portion is bent at right angles in the direction of the center of gravity. A nut pipe 6b having a 14 is formed to be screwed to the bolt pipe 5, and the annular locking jaw 14 is screwed to catch the annular projection 11 of the fixing ring 10, Screw the fixing nut 13 to the male screw portion 12 of the fixing ring 10 so that the nut pipe 6 is rotated loosely. Thereafter, the length of the bellows-type pipe 4 is adjusted by screwing or loosening the nut pipe 6b, and then screwing the clearance preventing nut 15 and the fixing nut 13 completely with the bolt pipe 5 And the clearance between pipes due to the clearance between the screw portion of the nut pipe 6b and the clearance between the fixing ring 10 and the annular locking jaw 14 of the nut pipe 6b.

When the nut pipe 6b is screwed in the above bellows-type pipe length adjusting device 1b, the length of the bellows-type pipe 4 is shortened. On the contrary, when the nut pipe 6b is unscrewed, the length of the bellows-type pipe 4 is long. Since the length can be adjusted without the joint of the pipe, it is possible to maintain the tight air tightness of the pipe, and the bolt pipe 5 and the nut pipe 6b are screwed together with the bellows-type pipe 4 interposed therebetween, and the nut pipe Is screwed to the fixing ring 10 with the fixing nut 13 to be integrally bonded to the straight pipe parts 3 on both sides, thereby eliminating the flexibility of the bellows-type pipe 4, and the pipe is connected to the stainless steel pipe 2 itself. The structure can be adjusted in length while maintaining a solid structure.

FIG. 7 is a view illustrating the bellows-type pipe length adjusting devices 1, 1a, and 1b of the above embodiments, which are integrally formed on the stainless steel pipe 2 without horizontal joints horizontally and vertically, respectively, and the stainless steel pipe 2 is perpendicular to each other. By bending twice to make a c-shape, both ends of the stainless steel pipe 2 are connected to a reducer 107 to which the protruding screw 102 and the sprinkler head 108 of the branch pipe 101 are connected, respectively. Insulation ring 104 in which the fastening nut 103 having the annular locking jaw 110 formed on the inner circumferential surface is inserted in advance on the outer circumferential surface of both ends of the stainless steel tube 2, and then the annular protrusion 109 is formed at one end of the outer circumferential surface. Inserting so as to be hooked to the annular locking jaw 110 of the fastening nut 103, and by bulging the both ends of the stainless steel pipe (2) to form a flange 106, packing for airtightness ( 105 is mounted on the flange 106, and the sieve When the nut nut 103 is screwed into the protruding screw portion 102 of the branch pipe 101 and the threaded portion of the reducer 107, the both side bolts of the bellows-type pipe length adjusting device 1 are interposed between the bellows-type pipes 4. The pipe 5 and the straight pipe 3 are bonded to each other, and the two bolt pipes 5 and the nut pipe 6 are integrally connected to each other to remove the flexibility of the bellows-type pipe 4, thereby making the pipe stainless. While maintaining the structure of the steel pipe (2) itself while maintaining a structure capable of adjusting the fine length of the pipe is fixed to the branch pipe 101 without shaking, and also horizontal by the bellows-type pipe length adjusting device (1, 1a, 1b) Vertical length adjustment is possible, and the sprinkler head piping connection device 100 to solve the problems of the screw connection pipe connection device and the pipe connection device formed by the flexible pipe as a whole by the existing steel pipe at the same time. The bellows-type pipe length adjusting device 1, 1a, 1b can be used for both the horizontal and vertical ones according to the embodiment of Figs. 1 and 2, and for the horizontal and vertical ones according to the embodiment of Figs. 5 and 6 can be used both horizontally and vertically. Moreover, even if the horizontal and the vertical are used according to different kinds of embodiments, the functions and operations are the same.

When installing the sprinkler head pipe connecting device 100 for the sprinkler head 108 in the ceiling half-width, when the fastening nut 103 connected to the protruding screw portion 102 of the branch pipe 101, the screw rotates 360 degrees It can be withdrawn in the direction of the position to be installed, the horizontal length can be adjusted by the bellows-type pipe length adjusting device (1, 1a, 1b) installed in the horizontal direction, and the bellows-type pipe length adjusting device installed vertically ( 1, 1a, 1b) can be adjusted to the vertical length is a structure that allows easy withdrawal of the installation position of the sprinkler head 108, which is a difficulty in construction of the screw-type pipe connecting device by the current steel pipe. That is, the horizontal position adjustment and the vertical length adjustment of the small range are possible, so that the protruding screw portion 102 of the branch pipe 101 is formed at the position where the sprinkler head 108 is to be installed, and after approximate piping, the sprinkler head 108 Sprinkler heads used in piping connection devices formed entirely of flexible pipes can be finely adjusted because of the structural rigidity of the pipes themselves, such as threaded pipe connection devices by steel pipes. 108 is no need for a separate fixing device for fixing the ceiling half.

Bellows-type pipe length adjusting device and bellows-type pipe to form the bellows-type pipe as long as the required length of the stainless steel pipe without the joint part proposed by the present invention so that the length can be adjusted by using the bolt and nut pipes between the bellows-type pipes. The length can be adjusted using a screw is equivalent to the structure and principle according to the present invention even if the structure is different.

The purpose of the sprinkler head pipe connection device of the present invention described above, when connecting the sprinkler head in the branch pipe using a screw-type pipe connection device by a steel pipe can not be easily drawn to the installation position of the ceiling half, difficult to work and cost Solving this many problems, and also connecting the whole with a flexible tube can be easily drawn out to the installation position of the sprinkler head, but the reducer connected to the sprinkler head due to the flexibility of the flexible tube should be fixed to the ceiling plate Therefore, the fixing device is added separately to provide a sprinkler head installation pipe connection device that can solve the problem of long working time and costly at the same time. Therefore, the effect of the present invention is to make it possible to easily withdraw the installation position of the sprinkler head as a pipe connecting device made of a flexible pipe as a whole, while having the fixing of the pipe itself, such as a screw pipe connecting device by a steel pipe. In addition, the bellows-type pipe length adjusting device of the present invention can be extended to places where precise length adjustment is required even for pipes of other fields, and can be used for straight pipes as well as pipe structures in which a part is bent as in the case of the present invention, One or more can be used, and both ends of the bellows-type pipe length adjusting device can be used in the desired shape, and furthermore, the pipes and piping materials are made of ready-made products in the factory and installed in the field. It can be applied to the place where fine length adjustment is required, such as for repair of defects or requiring the precision of pipe length cutting. In addition to the above effects, the bellows-type tube length adjusting device of the present invention is integrally formed without a joint portion, so that airtightness is assured, and in a pipe with expansion due to temperature change, the bellows-type tube absorbs expansion and freezes, etc. It also works to prevent.

Claims (4)

The whole of the stainless steel pipe 2 is processed in a spiral manner except for a certain portion of both ends, and the fastening nut 103 and the insulating ring 104 are inserted in advance on the outer circumferential surface of both ends, and both ends of the stainless steel pipe 2 are The flange 105 is formed to mount the packing 105, and the fastening nut 103 is screwed to the threaded portion of the reducer 107 to which the protruding screw portion 102 and the sprinkler head of the branch pipe 101 are fastened, respectively. In the sprinkler head pipe connection device, the two bellows-type pipe length adjusting devices (1, 1a, 1b) in the stainless steel pipe (2), bends at right angles twice to make a c-shape to adjust the bellows-type pipe length The device (1, 1a, 1b) is formed horizontally and vertically in the stainless steel pipe (2) integrally without a joint, so that the horizontal and vertical length can be adjusted, and connected to the protruding screw portion (102) Fasteners Sprinkler head piping connection device characterized in that the entire pipe connection device to rotate by loosening and tightening the bolt 103. The bellows-type pipe length adjusting device (1) according to claim 1, wherein the bellows-type pipe length adjusting device (1) extends the stainless steel pipe (2) to the deep bellows-shaped pipe (4) and its both ends to be a straight pipe portion (3), 3) the bolt tube 5 whose outer peripheral surface is the left screw portion 16 is bonded, and then the nut tube 6 whose left and right ends are respectively screwed on the bolt tube 5 is screwed on the outer peripheral surface. The bolt pipe 5, which is the right-hand screw part 17, is screwed to the nut pipe 6, and the bolt pipe 5 is bonded to the other straight pipe part 3, respectively, to the both bolt pipes 5, respectively. Sprinkler head piping connection device characterized in that the structure for fastening the play prevention nut (15). The bellows-type pipe length adjusting device 1a according to claim 1, wherein the bellows-type pipe length adjusting device 1a extends the stainless steel pipe 2 to the deep bellows-shaped pipe 4 and its both ends to be a straight pipe portion 3, and the one-side straight pipe portion ( 3) A bolt pipe 5a having an outer circumferential surface of the left screw portion 16a is attached to the screw, and a nut pipe 6a having a left screw of the inner circumferential surface thereof is screwed thereon, and a bolt having a right screw portion 17a is attached to the other straight pipe portion 3. Adhering the pipe (5a), and inserting the cylindrical connecting pipe 19, one side over the annular step (18) of the nut pipe (6a), and then tighten the nut pipe (6a) with the right side inner thread The other end of the cylindrical connecting pipe 19 is placed on the annular stepped wall 18 and bonded to each other, it is characterized in that the structure of fastening the gap preventing nut (15a) to each of the two bolt pipe (5a) Piping connector for sprinkler head. The bellows-shaped pipe length adjusting device 1b according to claim 1, wherein the bellows-type pipe length adjusting device 1b extends the stainless steel pipe 2 to the deep bellows-shaped pipe 4 and its both ends to be a straight pipe portion 3, and the one-side straight pipe portion ( 3) to the outer circumferential surface is bonded to the bolt pipe (5) having a male thread portion, to the other straight pipe portion (3) is bonded to the fixing ring 10 having an annular projection (11) at one end, one end having a female thread on the inner peripheral surface Screw the nut tube 6b having the annular locking jaw 14 to the bolt tube 5, and screw the nut tube 6b to the fixing ring 10 with the fixing nut 13, and to the bolt tube 5. Sprinkler head piping connection device, characterized in that the structure for screwing the gap prevention nut (15).