WO2016170819A1 - Structure de raccord pour tuyauterie d'équipement d'extinction d'incendie, et tête d'asperseur - Google Patents

Structure de raccord pour tuyauterie d'équipement d'extinction d'incendie, et tête d'asperseur Download PDF

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Publication number
WO2016170819A1
WO2016170819A1 PCT/JP2016/053434 JP2016053434W WO2016170819A1 WO 2016170819 A1 WO2016170819 A1 WO 2016170819A1 JP 2016053434 W JP2016053434 W JP 2016053434W WO 2016170819 A1 WO2016170819 A1 WO 2016170819A1
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WO
WIPO (PCT)
Prior art keywords
sprinkler head
screw
piping
female
nozzle
Prior art date
Application number
PCT/JP2016/053434
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English (en)
Japanese (ja)
Inventor
大越久誉
金幸宏
Original Assignee
千住スプリンクラー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 千住スプリンクラー株式会社 filed Critical 千住スプリンクラー株式会社
Priority to JP2017513989A priority Critical patent/JP6733096B2/ja
Publication of WO2016170819A1 publication Critical patent/WO2016170819A1/fr
Priority to TW106201084U priority patent/TWM543706U/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems

Definitions

  • the present invention relates to, for example, a joint to which a sprinkler head is connected and a sprinkler head to be connected to the joint as a connection structure for a fire extinguishing equipment pipe.
  • the fire-extinguishing sprinkler head described in Patent Document 1 is mainly installed on the ceiling of a building, and automatically operates in the event of a fire to spray water and extinguish the fire.
  • the sprinkler head is connected to a fire extinguishing equipment pipe laid behind the ceiling, and the fire extinguishing equipment pipe is connected to a water source and is always filled with water.
  • the sprinkler heads are installed on the ceiling surface at predetermined intervals, and the installation positions are determined when the building is designed.
  • the sprinkler head and the fire extinguishing equipment pipe are often connected via a flexible metal flexible pipe or a resin pipe.
  • the sprinkler head 50 shown in FIG. 4 is connected to a fire extinguishing equipment pipe (not shown) via a pipe 51 made of a metallic flexible pipe or a resin pipe.
  • the connection portion between the sprinkler head 50 and the pipe 51 has a screw structure, and a sealing tape (not shown) is wound around the male screw 52 of the sprinkler head 50 and then screwed into the female screw 53 of the pipe 51.
  • the sealing tape is brought into close contact with the gap between the male screw 52 and the female screw 53 to prevent water leakage.
  • the present invention aims to provide a fire extinguishing equipment piping connection structure capable of preventing leakage regardless of the skill of the operator, and more specifically, providing a sprinkler head connection joint and a sprinkler head. It is an object.
  • the present invention provides the following fire fighting equipment piping connection structure and sprinkler head.
  • a fire extinguishing equipment piping connection structure characterized in that a connecting portion inserted into the nozzle of the sprinkler head is installed inside the female screw, and a seal member is installed between the connecting portion and the nozzle. is there.
  • the sealing member is installed between the connecting portion and the nozzle, it is possible to save the trouble of winding a sealing material such as a screw seal around the screw portion as in the past. Further, since the connection structure between the pipe joint and the sprinkler head is a conventional screw structure, the connection procedure is the same as the conventional one, which is easy for the operator to understand intuitively.
  • the connecting portion has a cylindrical shape
  • the seal member is installed between the outer peripheral surface of the connecting portion and the inner peripheral surface of the nozzle. More specifically, an annular seal member is installed on the outer peripheral portion of the connecting portion. According to this, a plurality of seal members can be installed by the side seal structure, and the water stop performance is improved. Further, it is not necessary to tighten with a predetermined torque as in the prior art, and the water stop performance can be secured with a force that can be tightened by hand.
  • the end of the female thread of the pipe joint can be arranged on the sprinkler head side with respect to the seal member.
  • the above sprinkler head can be inserted through the connection part of the pipe joint into the nozzle. Specifically, a space through which the connecting portion is inserted is formed on the inlet side of the nozzle.
  • a space through which the connecting portion is inserted is formed on the inlet side of the nozzle.
  • the fire extinguishing equipment pipe connection structure of the present invention is a pipe installed in the fire extinguishing equipment, and has a tubular shape and a female piping member in which a female screw is installed inside the end portion, and has a tubular shape and an end.
  • a male pipe member having a male screw screwed with a female screw of the female pipe member outside the section, and a cylindrical connection having an outer peripheral surface in contact with the inner peripheral surface of the male pipe member inside the female pipe member
  • the seal member is installed between the connecting portion and the inner peripheral surface of the male pipe member.
  • a female pipe member is installed in a joint having a large number of connection ports installed at the end of the main pipe of a fire extinguishing equipment pipe, and a male pipe member is installed in a resin pipe connected to the female pipe member. It can be configured to be connectable.
  • the sprinkler head connection joint and the sprinkler head are provided. Can be realized.
  • FIG. 2 is a modified example of the joint of FIG. 1, (a) is a cross-sectional view after connection, and (b) is an XX cross-sectional view shown in (a). It is the connection structure of the joint of 2nd Embodiment, (a) is sectional drawing after a connection, (b) is YY sectional drawing shown to (a).
  • the present invention includes a joint 1 connected to a fire extinguishing equipment pipe and a sprinkler head 2 connected to the joint 1.
  • the joint 1 includes a joint body 11 and an outer cylinder 12.
  • the joint body 11 has a cylindrical shape, and the inner diameter thereof is larger than the minimum diameter of the nozzle 22 of the sprinkler head 2 described later.
  • the upper side 13 of the joint body 11 is joined to a flexible metal flexible pipe or resin pipe (not shown) and connected to the fire extinguishing equipment pipe via these pipes.
  • a lower side 14 of the joint main body 11 serves as a connecting portion with the sprinkler head 2, and a seal member 15 is installed on the outer peripheral portion thereof.
  • the seal member 15 has a ring shape, and more specifically, an O-ring is installed as the seal member 15.
  • the outer diameter of the intermediate portion 16 of the joint body 11 is larger than the outer diameters of the upper side 13 and the lower side 14 described above.
  • a male screw 17 is screwed on the outer peripheral portion of the intermediate portion 16 and is screwed with a female screw 18 inside the outer cylinder 12.
  • the outer cylinder 12 has a cylindrical shape, and a female screw 18 to be screwed with the male screw 17 of the joint body 11 is formed inside.
  • the upper side inside the outer cylinder 12 is a step 19, and the end surface of the intermediate portion 16 of the joint body 11 is stopped against the lower surface of the step 19.
  • the male screw 17 and the female screw 18 are fixedly connected by an adhesive or the like in the state of being screwed as shown in FIG.
  • the lower end of the female screw 18 is disposed below the seal member 15, that is, on the sprinkler head 2 side. Thereby, when removing the sprinkler head 2, the sealing member 15 is released from the sealing action before the screw is disengaged as shown in FIG. The pressure of the remaining fluid drops. Since the screw is disengaged in a state where the pressure of the residual fluid is lowered, the sprinkler head 2 can be safely removed.
  • the sprinkler head 2 has a nozzle 22 inside a main body 21 connected to the joint 1 described above. Since the structure of the sprinkler head is already known, the connection structure with the joint 1 will be described here, and detailed description of the other parts will be omitted.
  • the main body 21 has a cylindrical shape, and the inside is a nozzle 22.
  • the nozzle 22 has a large diameter on the inlet side (upper side in the figure), and the outlet side (lower side in the figure) has a smaller diameter than the inlet side. Normally, the outlet of the nozzle 22 is closed by the valve D. During a fire, the valve D is separated from the nozzle 22 and the nozzle 22 is opened.
  • a space 23 into which the lower side 14 of the joint body 11 is inserted is formed on the inlet side (upper side in the drawing) of the nozzle 22.
  • the side surface of the space 23 is a sealing surface, and when the lower side 14 of the joint body 11 is inserted into the space 23, the seal member 15 comes into contact with the side surface of the space 23 to seal the inside of the nozzle 22. Thereby, the internal fluid of the nozzle 22 is prevented from leaking outside the joint 1.
  • a male screw 24 is threaded on the outside of the nozzle 22.
  • the male screw 24 can be screwed with the female screw 18 of the joint 1.
  • the female screw 18 can be a pipe taper screw or a pipe parallel screw.
  • a collar portion 25 extended to the outside is formed on the lower side of the male screw 24.
  • the flange 25 is connected to the cylindrical frame 26 by a screw structure. Inside the frame 26 is accommodated the aforementioned valve D, a thermal decomposition part (not shown) for supporting the valve D, and the like.
  • the outer diameter of the flange 25 is larger than the outer diameter of the frame 26.
  • the sprinkler head 2 can be connected to the joint 1, but can also be connected to a conventional pipe joint having a female screw. At this time, like the conventional method, a seal tape is wound around the male screw 24 and screwed into the pipe joint.
  • the seal member 15 of the joint 1 is covered with the outer cylinder 12, it is difficult to be damaged during transportation. Further, when the sprinkler head 2 is connected, the seal member 15 does not touch the thread of the female screw 18 or the male screw 24 or the sharp part of the tip of the screw portion, so that the seal member is hardly damaged. ing.
  • the outer cylinder 12 has a polygonal shape with a hexagonal or octagonal cross section.
  • a stopper 30 is installed outside the outer cylinder 12.
  • the stopper 30 is made of an elastic resin and has a cylindrical shape with an upper portion having the same polygonal shape as the cross-sectional shape of the outer cylinder 12. Or the plane 31 and 31 which adjoins the two sides which face each other in the side surface of the outer cylinder 12 are provided inside. As a result, the stopper 30 cannot rotate about the axis when the side surface of the outer cylinder 12 and the flat surface 31 are close to each other.
  • the lower portion of the stopper 30 has a larger diameter than the upper portion, and a plurality of engaging portions 32 are provided by a plurality of notches.
  • the engaging portion 32 has an elongated strip shape, and is engaged with a plurality of grooves 27 provided at equal intervals on the side surface of the flange portion 25 of the sprinkler head 2.
  • six grooves 27 of the main body 1 are provided on the outer periphery of the flange portion 25 at intervals of 60 degrees.
  • the width of the engaging portion 32 is smaller than the width of the groove 27.
  • a slope 33 is formed inside the lower end of the engaging portion 32.
  • a protrusion 34 is provided on the inner peripheral surface between the upper and lower portions of the stopper 30.
  • a plurality of protrusions 34 can be provided at intervals.
  • the protrusion 34 is engaged with the annular groove 12 ⁇ / b> A of the outer cylinder 12, and the stopper 30 is prevented from moving in the direction along the central axis L (vertical direction in the drawing).
  • the engaging portion 32 is disposed above the collar portion 25 of the sprinkler head 2, and the female screw 18 and the male screw 24 are detachable.
  • the protrusion 34 of the stopper 30 is placed on the upper end surface of the outer cylinder 12 and can rotate around the central axis L.
  • the stopper 30 is moved downward in the drawing in order to prevent the screw from loosening. At this time, the plane of the side surface of the outer cylinder 12 having a polygonal cross section is opposed to the plane 31 inside the stopper 30.
  • the stopper 30 prevents the outer cylinder 12 and the sprinkler head 2 from rotating and prevents the screws from loosening. When removing the sprinkler head 2 from the joint 1, the stopper 30 is moved upward to release the engagement between the flange portion 25 and the engagement portion 32.
  • the screw locking function is operating depending on the position of the stopper 30. More specifically, when the engaging portion 32 of the stopper 30 is separated from the flange portion 25 of the sprinkler head 2, the sprinkler head 2 is in a state that can be removed. On the other hand, when the engaging portion 32 is engaged with the groove 27 of the flange portion 25, the screw is prevented from being loosened by the stopper 30, and the sprinkler head 2 cannot be removed. As described above, by confirming the position of the stopper 30 with the naked eye, it is possible to easily confirm the state of the screw loosening prevention function.
  • the fire extinguishing equipment piping connection structure of the second embodiment includes a female piping member 60 and a male piping member 70.
  • the female piping member 60 has a double cylinder structure including an outer cylinder 61 and an inner cylinder 62.
  • the outer cylinder 61 has a hollow cylindrical shape, and the cross-sectional shape is a polygonal shape such as a hexagon or an octagon as shown in FIG.
  • a female screw 63 is installed inside the right end of the outer cylinder 61.
  • the female screw 63 can be screwed with the male screw 71 of the male piping member 70.
  • a step 64 is provided inside the end of the outer cylinder 61 opposite to the side where the female screw 63 is installed.
  • An opening 65 is formed between the female screw 63 and the step 64, and an annular groove 66 is provided at a position where the opening 65 is formed on the outer periphery of the outer cylinder 61.
  • a lock ring 67 shown in FIG. 6B is installed inside the annular groove 66.
  • the lock ring 67 is formed of an elastic material, and is a stopper that prevents the female screw 63 and the male screw 71 from loosening.
  • a part of the ring of the lock ring 67 is notched, and a position corresponding to the opening 65 is a lock portion 67a bent to the center side.
  • the lock portion 67a passes through the opening 65 and protrudes from the inner peripheral surface of the outer cylinder 61 toward the inner cylinder 62 (see FIG. 6B).
  • the width of the annular groove 66 is preferably set to several mm to 10 mm so that the lock ring 67 cannot be intentionally removed.
  • the inner cylinder 62 is installed inside the outer cylinder 61.
  • the inner cylinder 62 has a cylindrical shape, and the inside is a flow passage through which fluid can pass.
  • the right end of the inner cylinder 62 is a connecting portion that is inserted into the inner side of the outer cylinder 61, and O-rings 68 and 68 are installed as seal members on the outer peripheral surface of the insertion portion.
  • the left side of the inner cylinder 62 is connected to a pipe having a sprinkler head 2 (not shown) connected to the end.
  • a step 69 is provided on the outer peripheral surface of the inner cylinder 62.
  • the outer diameter of the step 69 is larger than the outer diameter of the inner cylinder 62 and the inner diameter of the step 64.
  • the O-rings 68 and 68 are disposed inside the outer cylinder 61 with the step 64 and the step 69 engaged.
  • the outer cylinder 61 is configured not to come out of the inner cylinder 62.
  • the outer cylinder 61 is engaged with the inner cylinder 62 so as to be rotatable about the axis. More specifically, the outer cylinder 61 can be rotated about the axis and screwed with the male screw 71. .
  • a retaining ring 72 is provided on the outer peripheral surface on the left side from the step 69, the step 64 is locked to the retaining ring 72, and the outer cylinder 61 is restricted from moving to the left in the figure.
  • a step 64 is sandwiched between the step 69 and the retaining ring 72 so that the outer cylinder 61 and the inner cylinder 62 are not separated.
  • the left side (not shown) of the inner cylinder 62 has a length of several meters, and when the female screw 63 and the male screw 71 are screwed together, only the outer cylinder 61 in which the female screw 63 is installed is rotated. Since it can be screwed with the screw 71, the inner cylinder 62 does not need to be rotated, so that the working efficiency can be improved.
  • the male piping member 70 is installed in the connection port of the multi-necked joint 76 provided with the male screw 71 as shown in FIG.
  • the multi-joint joint 76 has a cup shape, and a plurality of connection ports are provided on the side surface.
  • the upper end of the multi-joint joint 76 is connected to a fire extinguishing equipment pipe connected to a water supply source indicated by a two-dot chain line in the figure, and the lower end is a bottom surface.
  • the inside of the male screw 71 is hollow and allows fluid to pass therethrough.
  • the male screw 71 can be screwed into the female screw 63 described above, and the inner side of the male screw 71 is in contact with the O-rings 68 and 68 while being screwed into the female screw 63.
  • the water supplied from the fire extinguishing equipment pipe can be supplied to the sprinkler head 2 (not shown) installed at the end of the inner cylinder 62 through the inside of the male screw 71.
  • a slope 73 is formed at the outer peripheral end on the tip side of the male screw 71.
  • the distal end of the inclined surface 73 is disposed on the center axis side (not shown) of the tube portion having the male screw 71 with respect to the distal end of the lock portion 67 a of the lock ring 67.
  • An annular lock groove 74 is provided between the inclined surface 73 and the male screw 71.
  • the lock groove 74 can be engaged with the lock portion 67a.
  • a step 75 larger than the outer peripheral diameter of the male screw 71 is formed on the base side of the male screw 71, and the female screw 63 and the male screw 71 are screwed to a position where the end surface of the step 75 and the end surface of the outer cylinder 61 contact each other. When combined, the tip of the lock portion 67 a is inserted into the lock groove 74.
  • the lock ring 67 is used in a joint described in Japanese Patent Application Laid-Open No. 2004-52839. Since this joint is not premised on removing the connected resin pipe, the screw once tightened is held as it is.
  • the female piping member 60 and the male piping member 70 are detachable, and the usage of the lock ring 67 is different from that of Japanese Patent Application Laid-Open No. 2004-52839.
  • the lock portion 67 a is inserted through the opening 65 and the tip of the lock portion 67 a is engaged with the lock groove 74.
  • the tip of the lock portion 67a hits the side surface 74a of the lock groove 74 to prevent the rotation, and the outer cylinder 61 is prevented from rotating.
  • the end portion is tapered or curved or is chamfered in order to smoothly connect the components. Furthermore, if the female screw 63 and the male screw 71 have a multi-threaded structure, they can be quickly screwed together with a small number of rotations.
  • the multi-joint joint 76 in which the male pipe member 70 is installed is connected to the end of the fire extinguishing equipment pipe installed in the upper part of the room.
  • the female screw 63 of the outer cylinder 61 of the female piping member 60 is screwed into the male screw 71 of the male piping member 70.
  • the inner cylinder 62 need not be rotated when the female screw 63 and the male screw 71 are screwed together.
  • the O-rings 68 and 68 are brought into contact with the inner peripheral surface of the male screw 71 in a sealed state in the process of screwing the female screw 63 and the male screw 71. Further, since the lock portion 67a is engaged with the lock groove 74, the female screw 63 and the male screw 71 cannot be rotated, and it is possible to prevent the screw from being loosened due to vibration after connection.
  • the screw can be rotated by removing the lock ring 67 from the annular groove 66 by hooking the tip of a tool such as a screwdriver to the lock ring 67 in the annular groove 66.
  • a tool such as a screwdriver

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

Le problème décrit par la présente invention est de fournir une jonction de raccord de tête d'asperseur et une tête d'asperseur avec lesquelles il est possible d'empêcher les fuites, sans dépendre du savoir-faire d'un opérateur, lors de l'exécution d'une opération de raccord de la tête d'asperseur à un tuyau d'alimentation en eau. Selon la solution de l'invention, une extrémité d'une jonction de raccord (1) d'une tête d'asperseur est raccordée à une tuyauterie d'équipement d'extinction d'incendie, et l'autre extrémité de celle-ci est raccordée à une buse (22) d'une tête d'asperseur (2). Un filetage femelle (17) qui se visse avec un filetage mâle (24) situé à l'extérieur de la buse (22) de la tête d'asperseur (2) est situé au niveau dudit autre côté extrémité de la jonction de raccord (1). Une partie d'accouplement (14) qui est insérée dans la buse (22) de la tête d'asperseur (2) est située plus loin à l'intérieur que le filetage femelle (17), et un élément d'étanchéité (15) est situé entre la partie de liaison (14) et la buse (22).
PCT/JP2016/053434 2015-04-21 2016-02-05 Structure de raccord pour tuyauterie d'équipement d'extinction d'incendie, et tête d'asperseur WO2016170819A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2017513989A JP6733096B2 (ja) 2015-04-21 2016-02-05 消火設備配管の接続構造及びスプリンクラーヘッド
TW106201084U TWM543706U (zh) 2015-04-21 2017-01-20 消防設備配管之連接構造及灑水頭

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-086367 2015-04-21
JP2015086367 2015-04-21

Publications (1)

Publication Number Publication Date
WO2016170819A1 true WO2016170819A1 (fr) 2016-10-27

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PCT/JP2016/053434 WO2016170819A1 (fr) 2015-04-21 2016-02-05 Structure de raccord pour tuyauterie d'équipement d'extinction d'incendie, et tête d'asperseur

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JP (1) JP6733096B2 (fr)
TW (1) TWM543706U (fr)
WO (1) WO2016170819A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108543257A (zh) * 2018-05-11 2018-09-18 泰州市三江消防器材有限公司 一种消防用成套设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102033307B1 (ko) * 2019-07-03 2019-10-17 김원용 농약 분무 노즐용 손상 방지구조
CN112025214A (zh) * 2020-08-12 2020-12-04 南安市黄荣林包装材料厂 一种喷洒头框架的制备工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6392893U (fr) * 1986-12-05 1988-06-15
JPH1194144A (ja) * 1997-09-22 1999-04-09 Bridgestone Corp ホ−ス用継手
JP2009291359A (ja) * 2008-06-04 2009-12-17 Senju Sprinkler Kk スプリンクラーヘッド
JP2013224677A (ja) * 2012-04-19 2013-10-31 Nippon Soken Inc 管継手

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6392893U (fr) * 1986-12-05 1988-06-15
JPH1194144A (ja) * 1997-09-22 1999-04-09 Bridgestone Corp ホ−ス用継手
JP2009291359A (ja) * 2008-06-04 2009-12-17 Senju Sprinkler Kk スプリンクラーヘッド
JP2013224677A (ja) * 2012-04-19 2013-10-31 Nippon Soken Inc 管継手

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108543257A (zh) * 2018-05-11 2018-09-18 泰州市三江消防器材有限公司 一种消防用成套设备

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JPWO2016170819A1 (ja) 2018-02-22
TWM543706U (zh) 2017-06-21
JP6733096B2 (ja) 2020-07-29

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