JP3072507B2 - Sprinkler head unwinding tube - Google Patents
Sprinkler head unwinding tubeInfo
- Publication number
- JP3072507B2 JP3072507B2 JP9177655A JP17765597A JP3072507B2 JP 3072507 B2 JP3072507 B2 JP 3072507B2 JP 9177655 A JP9177655 A JP 9177655A JP 17765597 A JP17765597 A JP 17765597A JP 3072507 B2 JP3072507 B2 JP 3072507B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- joint
- unwinding
- straight
- metal material
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
Description
【０００１】[0001]
【発明の属する技術分野】本発明は湿式スプリンクラー
設備に使用するスプリンクラーヘッド巻出し管に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprinkler head unwinding tube used in a wet sprinkler system.
【０００２】[0002]
【従来の技術】従来、巻出し管は波状部を有する金属製
管本体（フレキシブルパイプ）の一端に金属製のニップ
ルを設けており、このニップルを介して湿式スプリンク
ラー設備用金属製配管に接続していた。2. Description of the Related Art Conventionally, an unwinding pipe is provided with a metal nipple at one end of a metal pipe body (flexible pipe) having a corrugated portion, and the unwinding pipe is connected to a metal pipe for wet sprinkler equipment through this nipple. I was
【０００３】[0003]
【発明が解決しようとする課題】ところが、巻出し管ま
での湿式スプリンクラー設備用配管の合成樹脂化に伴
い、上記した従来の巻出し管では対応できなくなった。However, with the use of synthetic resin for the piping for wet sprinkler equipment up to the unwinding pipe, the above-mentioned conventional unwinding pipe cannot be used.
【０００４】そこで、合成樹脂製配管に対する巻出し管
の接続部を合成樹脂成形品で構成し、合成樹脂製配管と
接続可能な巻出し管を提供し、また成形品を管本体に嵌
込んだ状態で行う管本体端部及び周壁のフレヤー加工に
よって成形品が破損しないようにすることを本発明の目
的としている。In view of the above, the connecting portion of the unwinding pipe to the synthetic resin pipe is constituted by a synthetic resin molded article, and an unwinding pipe connectable to the synthetic resin pipe is provided, and the molded article is fitted into the pipe body. It is an object of the present invention to prevent the molded product from being damaged by flaring of the end of the tube body and the peripheral wall performed in the state.
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成するた
めに本発明のスプリンクラーヘッド巻出し管は、波状部
を有する金属製管本体の一端に合成樹脂製管継手を設
け、管本体のフレヤー加工時に衝撃を受ける前記管継手
の端面及び内面に金属材を設け、該金属材を管継手の成
形時に一体的に管継手に埋込むと共に、金属材における
管本体の拡径膨出部の対応位置に０リング装着用の０リ
ング溝を設けたものである。In order to achieve the above object, a sprinkler head unwinding pipe according to the present invention is provided with a synthetic resin pipe joint at one end of a metal pipe body having a wavy portion, and a flare of the pipe body. A metal material is provided on an end face and an inner surface of the pipe joint that is subjected to an impact during processing , and the metal material is formed on the pipe joint.
When embedded in a pipe joint during molding,
At the position corresponding to the expanded bulge of the pipe body, a 0
The groove is provided .
【０００６】また、管継手を内筒体と外筒体とで形成
し、スプリンクラー設備用合成樹脂配管に外筒体一端側
を接続させ、外筒体の他端側を、内筒体に回転のみ許容
して嵌合接続させると共に、内筒体の一端側端面及び内
面に金属材を埋込んで、管継手を回転構造とするもので
ある。Further, the pipe joint is formed by an inner cylinder and an outer cylinder.
And one end of the outer cylinder to the synthetic resin piping for sprinkler equipment.
And only the other end of the outer cylinder is allowed to rotate to the inner cylinder.
At the end of the inner cylinder and the inner
A metal material is embedded in the surface, and the pipe joint has a rotating structure.
【０００７】[0007]
【発明の実施の形態】以下本発明の実施例を図面に基づ
いて詳述する。図２は湿式スプリンクラー設備用配管の
概略図であり、図中（１）はアラーム弁、（２）はスプ
リンクラーヘッドで、アラーム弁（１）から、先端に前
記ヘッド（２）を取付ける金属製のスプリンクラーヘッ
ド巻出し管（３）までの配管（４）を耐熱性硬質塩化ビ
ニル管（４ａ）及び管継手（４ｂ）によって構成し、ア
ラーム弁（１）からヘッド（２）までの配管（４）及び
各巻出し管（３）内を所定の圧力水で満たしている。そ
してヘッド（２）部で所定の室内温度を感知すると、ヘ
ッド（２）が破裂し、放水を開始すると共に、この放水
による配管（４）及び巻出し管（３）内の水圧低下によ
ってアラーム弁（１）が開作動し、以降消火水が連続的
に配管（４）にポンプ供給されるものである。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 2 is a schematic view of piping for a wet-type sprinkler facility. In the figure, (1) is an alarm valve, (2) is a sprinkler head, and is a metal sprue for attaching the head (2) to the tip from the alarm valve (1). The pipe (4) from the sprinkler head unwinding pipe (3) is composed of a heat-resistant hard vinyl chloride pipe (4a) and a pipe joint (4b), and the pipe (4) from the alarm valve (1) to the head (2). The inside of each unwinding pipe (3) is filled with predetermined pressure water. When a predetermined indoor temperature is sensed at the head (2), the head (2) ruptures and starts discharging water, and the water pressure drops in the pipe (4) and the unwinding pipe (3) due to the water discharge, and the alarm valve is activated. (1) is opened, and thereafter the fire extinguishing water is continuously pumped to the pipe (4).
【０００８】また図中（５）は配管（４）の一つの末端
に複数のヘッド（２）を取付ける多方継手で、この多方
継手（５）も金属製としている。[0008] In the figure, reference numeral (5) denotes a multi-way joint for mounting a plurality of heads (2) at one end of a pipe (4). The multi-way joint (5) is also made of metal.
【０００９】前記巻出し管（３）は図３乃至図６に示す
ように、直管部（６）と波状部（７）を交互に設けるス
テンレス製管本体（８）と、管本体（８）の一方の末端
直管部（６ａ）に設けるヘッド継手である鉄製のソケッ
ト（９）と、管本体（８）の他方の末端直管部（６ｂ）
に設ける耐熱性硬質塩化ビニル製の管継手（１０）とか
ら成り、波状部（７）で任意の方向に曲げ可能な管本体
（８）の一端に前記ソケット（９）を介してヘッド
（２）を螺着接合させると共に、前記管本体（８）の他
端を合成樹脂製配管（４）の各末端に合成樹脂製管継手
（１０）を介して接着剤により接着接合させるように構
成している。As shown in FIGS. 3 to 6, the unwinding pipe (3) has a stainless steel pipe body (8) provided with a straight pipe section (6) and a corrugated section (7) alternately, and a pipe body (8). ), An iron socket (9) as a head joint provided on one end straight pipe portion (6a), and the other end straight pipe portion (6b) of the pipe body (8).
And a pipe joint (10) made of heat-resistant hard vinyl chloride provided on the head (2) via the socket (9) at one end of a pipe body (8) that can be bent in an arbitrary direction at the wavy portion (7). ), And the other end of the pipe body (8) is bonded to each end of the synthetic resin pipe (4) with an adhesive via a synthetic resin pipe joint (10). ing.
【００１０】また図３及び図４に示す如く、ヘッド
（２）を取付ける側の末端直管部（６ａ）と、この側の
最外側の波状部（７ａ）間に断面８角形の多角形部（１
１）を形成すると共に、この多角形部（１１）に絶縁用
樹脂シート（１２）を被覆するもので、サイド振止め金
具で角バーを天井Ｃチャンネルに固定し、管本体（８）
の多角形部（１１）（絶縁部）をパイプ振止め金具を使
い、ヘッド（２）のレベル（高さ）を合わせて角バーに
固定するように構成している。As shown in FIGS. 3 and 4, a polygonal section having an octagonal cross section is provided between the end straight pipe part (6a) on the side where the head (2) is mounted and the outermost wavy part (7a) on this side. (1
In addition to forming 1), the polygonal portion (11) is covered with an insulating resin sheet (12), and the square bar is fixed to the ceiling C channel with side dampers, and the pipe body (8) is formed.
The polygonal portion (11) (insulating portion) is fixed to a square bar by adjusting the level (height) of the head (2) using a pipe stopper.
【００１１】また、ソケット（９）は図４に示す如く、
末端直管部（６ａ）と多角形部（１１）の端部までを挿
入可能な長さを有する管本体（８）への基端取付部（１
３）と、末端直管部（６ａ）先端から突出させるヘッド
（２）用の先端取付部（１４）とから成り、基端取付部
（１３）の孔のうち末端直管部（６ａ）が嵌まる部分の
孔（１５ａ）をこの末端直管部（６ａ）と同じ外形の円
形に形成し、多角形部（１１）の端部が嵌まる部分の孔
（１５ｂ）をこの多角形部（１１）と同じ外形の８角形
に形成すると共に、末端直管部（６ａ）が嵌まる部分の
前記円孔（１５ａ）の周面にＯリング溝（１６）を形成
し、一方先端取付部（１４）の内周面にヘッド（２）側
のオネジを螺着させるメネジ（１７）（平行ネジ）を形
成している。The socket (9) is, as shown in FIG.
A proximal end mounting portion (1) to a pipe main body (8) having a length capable of inserting the end straight tube portion (6a) and the end of the polygonal portion (11).
3) and a distal end mounting portion (14) for the head (2) projecting from the distal end of the straight end portion (6a). The fitting hole (15a) is formed in a circular shape having the same outer shape as that of the end straight pipe portion (6a), and the fitting hole (15b) of the polygon portion (11) is fitted with the polygon portion (15). An O-ring groove (16) is formed on the peripheral surface of the circular hole (15a) at a portion where the straight end portion (6a) fits, and is formed at the one end mounting portion ( A female screw (17) (parallel screw) for screwing the male screw on the head (2) side is formed on the inner peripheral surface of 14).
【００１２】そして、Ｏリング（１８）をＯリング溝
（１６）に装着したソケット（９）の基端取付部（１
３）の孔（１５ａ）（１５ｂ）に末端直管部（６ａ）と
多角形部（１１）の端部までを挿入した後、Ｏリング溝
（１６）に対応する末端直管部（６ａ）の周壁をフレヤ
ー加工によって半径方向に拡径膨出させ、この膨出部
（１９）とＯリング溝（１６）との間でＯリング（１
８）を圧縮し、基端取付部（１３）と末端直管部（６
ａ）間の隙間を密封すると共に、Ｏリング溝（１６）と
膨出部（１９）との係合により、ソケット（９）の管軸
方向の移動と周方向の回転を規制し、且つ、多角形部
（１１）と基端取付部（１３）との嵌合によって、ソケ
ット（９）の周方向の回転を規制し、管本体（８）の一
端にソケット（９）を嵌合固定するように構成してい
る。[0012] Then, the base end mounting portion (1) of the socket (9) in which the O-ring (18) is mounted in the O-ring groove (16).
After inserting the end straight pipe portion (6a) and the end of the polygonal portion (11) into the holes (15a) (15b) of 3), the straight end portion (6a) corresponding to the O-ring groove (16). Is expanded radially in the radial direction by flaring, and an O-ring (1) is inserted between the expanded portion (19) and the O-ring groove (16).
8) is compressed, and the proximal mounting part (13) and the straight terminal pipe part (6) are compressed.
a) sealing the gap between them, and by engaging the O-ring groove (16) with the bulging portion (19), restricts movement of the socket (9) in the tube axis direction and rotation in the circumferential direction, and By fitting the polygonal part (11) and the base end mounting part (13), the rotation of the socket (9) in the circumferential direction is restricted, and the socket (9) is fitted and fixed to one end of the tube body (8). It is configured as follows.
【００１３】ソケット（９）は鉄製であり、ステンレス
製ソケットに比べ、材質的に安価で、加工も簡単に行う
ことができるため、ソケット（９）の製品コストを極め
て安くでき、引いては巻出し管（３）の製品コストを低
下させる利点があるが、ソケット（９）の取付けを溶接
により行うことは材質上極めて困難となる。しかしなが
ら上記したように、管本体（８）に対するソケット
（９）の管軸方向の移動及び周方向の回転を、Ｏリング
溝（１６）と膨出部（１９）との係合並びに多角形部
（１１）と基端取付部（１３）との嵌合（断面多角形の
軸と孔との嵌合）により規制することにより、ソケット
（９）の固定を溶接と同等の性能で確実に行うことがで
きる。またこのソケット（９）の取付けは溶接よりも極
めて安く簡単に行えるため、巻出し管（３）の製品コス
トを大幅に低下させることができるようになるものであ
る。The socket (9) is made of iron and is inexpensive in terms of material and can be easily processed as compared with a stainless steel socket. Therefore, the product cost of the socket (9) can be extremely reduced, and the socket (9) can be rolled. Although there is an advantage of reducing the product cost of the outlet pipe (3), it is extremely difficult to attach the socket (9) by welding because of its material. However, as described above, the movement of the socket (9) in the tube axis direction and the rotation in the circumferential direction with respect to the tube body (8) are controlled by the engagement between the O-ring groove (16) and the bulging portion (19) and the polygonal portion. By restricting by fitting (11) and the base end mounting portion (13) (fitting of a shaft with a polygonal cross section and a hole), the socket (9) is securely fixed with the same performance as welding. be able to. Also, since the mounting of the socket (9) is extremely cheap and easy as compared with welding, the product cost of the unwinding tube (3) can be greatly reduced.
【００１４】また前記ソケット（９）の内外面をエポキ
シ樹脂等で樹脂コーティングし、耐食性及び絶縁性を付
与している。尚、ソケット（９）の内外面を亜鉛メッキ
する場合もある。さらにＯリング溝（１６）と膨出部
（１９）と同じ係合部をソケット（９）内面と末端直管
部（６ａ）間に多段に設けることが好ましく、この場合
Ｏリング（２４）の装着は各係合部ごとに行っても、そ
のうちの１乃至２でもよい。The inner and outer surfaces of the socket (9) are resin-coated with an epoxy resin or the like to provide corrosion resistance and insulation. The inner and outer surfaces of the socket (9) may be galvanized. Further, it is preferable that the same engaging portion as the O-ring groove (16) and the bulging portion (19) is provided in multiple stages between the inner surface of the socket (9) and the end straight pipe portion (6a). The attachment may be performed for each engagement portion, or one or two of them.
【００１５】一方、管継手（１０）は図５に示すオス形
管継手（１０ａ）と図６に示すメス形管継手（１０ｂ）
があり、オス形管継手（１０ａ）は配管（４）に接続さ
せる側の末端直管部（６ａ）外側に嵌合させるスリーブ
状の耐熱性硬質塩化ビニル製継手本体（２０）を備え、
末端直管部（６ｂ）端部に形成するフレヤー部（２１）
を継手本体（２０）先端面に当接させ、この側の最外側
の波状部（７ｂ）を継手本体（２０）基端面に当接さ
せ、フレヤー部（２１）と波状部（７ｂ）とで末端直管
部（６ｂ）外周に継手本体（２０）を管軸方向の移動及
び周方向の回転を規制して嵌合固定し、また継手本体
（２０）の先端寄り内周面にＯリング溝（２２）を設
け、Ｏリング溝（２２）に対応する末端直管部（６ｂ）
周壁をフレヤー加工によって半径方向に拡径膨出させて
形成した膨出部（２３）と前記Ｏリング溝（２２）との
間でＯリング（２４）を圧縮し、継手本体（２０）と末
端直管部（６ｂ）間の隙間を密封すると共に、Ｏリング
溝（２２）と膨出部（２３）との係合により、継手本体
（２０）の管軸方向の移動及び周方向の回転を規制して
いる。On the other hand, the pipe joint (10) is a male pipe joint (10a) shown in FIG. 5 and a female pipe joint (10b) shown in FIG.
The male pipe fitting (10a) includes a sleeve-shaped heat-resistant hard vinyl chloride fitting main body (20) fitted to the outside of the end straight pipe part (6a) on the side to be connected to the pipe (4),
Flare section (21) formed at the end of the straight straight pipe section (6b)
Is brought into contact with the distal end face of the joint body (20), and the outermost wavy portion (7b) on this side is brought into contact with the base end face of the joint body (20), and the flare portion (21) and the wavy portion (7b) The joint body (20) is fitted and fixed to the outer periphery of the straight pipe portion (6b) by restricting the movement in the pipe axis direction and the rotation in the circumferential direction, and an O-ring groove is formed in the inner peripheral surface near the tip of the joint body (20). (22), and a straight straight pipe end (6b) corresponding to the O-ring groove (22).
The O-ring (24) is compressed between the bulging portion (23) formed by radially expanding and expanding the peripheral wall by flaring and the O-ring groove (22), and the joint body (20) and the terminal end are compressed. The gap between the straight pipe portions (6b) is sealed, and the engagement between the O-ring groove (22) and the bulging portion (23) prevents the joint body (20) from moving in the pipe axis direction and rotating in the circumferential direction. Regulating.
【００１６】そして、上記オス形管継手（１０ａ）の外
周面と接続しようとする配管（４）の末端受口内周面に
接着剤を塗布し、外周にオス形管継手（１０ａ）が嵌合
固定された巻出し管（３）の端部を接続しようとする配
管（４）の末端受口に所定長さ挿入し所定時間保持する
ことにより、配管（４）への巻出し管（３）の接続を行
うものである。Then, an adhesive is applied to the inner peripheral surface of the terminal port of the pipe (4) to be connected to the outer peripheral surface of the male pipe joint (10a), and the male pipe joint (10a) is fitted around the outer periphery. By inserting the fixed end of the unwinding pipe (3) into the end receptacle of the pipe (4) to be connected to for a predetermined length and holding it for a predetermined time, the unwinding pipe (3) to the pipe (4) is obtained. Connection.
【００１７】メス形管継手（１０ｂ）は配管（４）に接
続させる側の末端直管部（６ｂ）外側に嵌合させる基端
取付部（２５）と、末端直管部（６ｂ）先端から突出さ
せる管受口部（２６）とを有するソケット状の耐熱性硬
質塩化ビニル製継手本体（２７）を備え、末端直管部
（６ｂ）端部に形成するフレヤー部（２１）を継手本体
（２７）の受口底面（２８）に当接させ、この側の最外
側の波状部（７ａ）を継手本体（２７）基端面に当接さ
せ、フレヤー部（２１）と波状部（７ｂ）とで末端直管
部（６ｂ）外周に継手本体（２７）を管軸方向の移動及
び周方向の回転を規制して嵌合固定し、また基端取付部
（２５）の先端寄り内周面にＯリング溝（２２）を設
け、Ｏリング溝（２２）に対応する末端直管部（６ｂ）
周壁をフレヤー加工によって半径方向に拡径膨出させて
形成した膨出部（２３）と前記Ｏリング溝（２２）との
間でＯリング（２４）を圧縮し、継手本体（２７）と末
端直管部（６ｂ）間の隙間を密封すると共に、Ｏリング
溝（２２）と膨出部（２３）との係合により、継手本体
（２７）の管軸方向の移動及び周方向の回転を規制して
いる。The female pipe joint (10b) has a proximal end mounting portion (25) fitted to the outside of the straight straight pipe portion (6b) on the side connected to the pipe (4) and a distal end of the straight straight pipe portion (6b). It has a socket-like heat-resistant hard vinyl chloride joint main body (27) having a pipe receiving portion (26) to be protruded, and a flared portion (21) formed at the end of the end straight pipe portion (6b). 27), and the outermost wavy portion (7a) on this side is brought into contact with the base end surface of the joint body (27) to form the flare portion (21) and the wavy portion (7b). The fitting body (27) is fitted and fixed to the outer periphery of the straight straight pipe part (6b) by restricting the movement in the pipe axis direction and the rotation in the circumferential direction, and is fixed to the inner peripheral surface near the distal end of the base mounting part (25). An O-ring groove (22) is provided, and the end straight pipe portion (6b) corresponding to the O-ring groove (22).
The O-ring (24) is compressed between the bulged portion (23) formed by radially expanding and bulging the peripheral wall by flaring and the O-ring groove (22), and the joint body (27) and the end are compressed. The gap between the straight pipe portions (6b) is sealed, and the engagement between the O-ring groove (22) and the bulging portion (23) prevents the joint body (27) from moving in the pipe axis direction and rotating in the circumferential direction. Regulating.
【００１８】そして、上記メス形管継手（１０ｂ）の管
受口部（２６）内周面と接続しようとする配管（４）の
末端外周面に接着剤を塗布し、外周にメス形管継手（１
０ｂ）が嵌合固定された巻出し管（３）の端部管受口部
（２６）に接続しようとする配管（４）の末端を挿入し
所定時間保持することにより、配管（４）への巻出し管
（３）の接続を行うものである。Then, an adhesive is applied to the outer peripheral surface of the end of the pipe (4) to be connected to the inner peripheral surface of the pipe socket (26) of the female pipe joint (10b), and the outer periphery of the female pipe joint is (1
0b) is inserted into the end pipe receiving portion (26) of the unwinding pipe (3) to which the fitting is fixed, and the end of the pipe (4) to be connected is inserted and held for a predetermined time, so that the pipe (4) is connected to the pipe (4). Of the unwinding tube (3).
【００１９】前記オス形管継手（１０ａ）及びメス形管
継手（１０ｂ）は固定形で、図１に回転形管継手（１０
ｃ）を示している。この回転形管継手（１０ｃ）は配管
（４）に接続させる側の末端直管部（６ｂ）外側に嵌合
固定させる内筒体であるスリーブ状の耐熱性硬質塩化ビ
ニル製継手本体（２９）を備え、末端直管部（６ｂ）端
部に形成するフレヤー部（２１）を継手本体（２９）先
端面に当接させ、この側の最外側の波状部（７ｂ）を継
手本体（２９）基端面に当接させ、フレヤー部（２１）
と波状部（７ｂ）とで末端直管部（６ｂ）外周に継手本
体（２９）を管軸方向の移動及び周方向の回転を規制し
て嵌合固定し、また継手本体（２９）の中間部内周面に
Ｏリング溝（２２）を設け、Ｏリング溝（２２）に対応
する末端直管部（６ｂ）周壁をフレヤー加工によって半
径方向に拡径膨出させて形成した膨出部（２３）と前記
Ｏリング溝（２２）との間でＯリング（２４）を圧縮
し、継手本体（２９）と末端直管部（６ｂ）間の隙間を
密封すると共に、Ｏリング溝（２２）と膨出部（２３）
との係合により、継手本体（２９）の管軸方向の移動及
び周方向の回転を規制している。The male fitting (10a) and the female fitting (10b) are fixed, and FIG. 1 shows a rotary fitting (10a).
c) is shown. This rotary type pipe joint (10c) is a sleeve-shaped heat-resistant hard vinyl chloride joint body (29) which is an inner cylindrical body fitted and fixed to the outside of the end straight pipe part (6b) on the side to be connected to the pipe (4). The flare portion (21) formed at the end of the straight straight pipe portion (6b) is brought into contact with the distal end surface of the joint body (29), and the outermost wavy portion (7b) on this side is joined to the joint body (29). Abut on the base end face, flare part (21)
The joint body (29) is fitted and fixed to the outer periphery of the end straight pipe part (6b) by regulating the movement in the pipe axis direction and the rotation in the circumferential direction with the wavy part (7b) and the middle part of the joint body (29). An O-ring groove (22) is provided on the inner peripheral surface of the portion, and a bulging portion (23) formed by radially expanding and expanding the peripheral wall of the end straight pipe portion (6b) corresponding to the O-ring groove (22) by flare processing. ) And the O-ring groove (22), compresses the O-ring (24), seals the gap between the joint body (29) and the end straight pipe portion (6b), and connects the O-ring groove (22) with the O-ring groove (22). Bulge (23)
By this, the movement of the joint body (29) in the tube axis direction and the rotation in the circumferential direction are restricted.
【００２０】また前記固定側の継手本体（２９）の外周
に基端側を回転自在に嵌合し、継手本体（２９）先端に
管受口（３０）を形成する外筒体であるスリーブ状の耐
熱性硬質塩化ビニル製回転筒（３１）を備え、前記継手
本体（２９）の外面に先端側より基端側の直径が大きく
なるようなテーパ（３２）を付けると共に、このテーパ
（３２）に対応するテーパ（３３）を継手本体（２９）
を嵌める回転筒（３１）の一側内面に付け、また回転筒
（３１）の基端に複数のスリット（３４）を設け、前記
継手本体（２９）の基端まで回転筒（３１）を嵌合可能
に形成すると共に、各スリット（３４）間の割脚部（３
５）の先端に継手本体（２９）先端面に係合させる爪
（３６）を設け、前記テーパ（３２）（３３）と爪（３
６）によって回転筒（３１）を管軸方向の移動を規制し
回転のみを許容して継手本体（２９）外側に嵌合させ、
さらに回転筒（３１）のテーパ（３３）中間部にＯリン
グ溝（２２）を介して継手本体（２９）と回転筒（３
１）の間にＯリング（２４）を嵌込み、この間の隙間を
密封している。Further, a sleeve-shaped outer cylindrical body which has its base end rotatably fitted to the outer periphery of the fixed-side joint body (29) and has a pipe socket (30) at the distal end of the joint body (29). And a taper (32) having a larger diameter at the proximal end than at the distal end on the outer surface of the joint body (29). The taper (33) corresponding to the joint body (29)
And a plurality of slits (34) are provided at the proximal end of the rotating cylinder (31), and the rotating cylinder (31) is fitted to the proximal end of the joint body (29). And the split legs (3) between the slits (34).
The tip of (5) is provided with a claw (36) to be engaged with the tip surface of the joint body (29), and the taper (32) (33) and the claw (3) are provided.
6) the rotary cylinder (31) is fitted to the outside of the joint body (29) by restricting the movement in the tube axis direction and allowing only the rotation,
Further, the joint body (29) and the rotary cylinder (3) are inserted through the O-ring groove (22) at the intermediate portion of the taper (33) of the rotary cylinder (31).
An O-ring (24) is fitted between 1) to seal the gap therebetween.
【００２１】そして、上記回転形管継手（１０ｃ）の管
受口部（３０）内周面と接続しようとする配管（４）の
末端外周面に接着剤を塗布し、外周に回転形管継手（１
０ｃ）が嵌合固定された巻出し管（３）の端部管受口部
（３０）に接続しようとする配管（４）の末端を挿入し
所定時間保持することにより、配管（４）への巻出し管
（３）の接続を行うものである。Then, an adhesive is applied to the outer peripheral surface of the end of the pipe (4) to be connected to the inner peripheral surface of the pipe socket (30) of the rotary type pipe joint (10c), and the rotary type pipe joint is formed on the outer circumference. (1
0c) is inserted into the end tube receiving portion (30) of the unwinding tube (3) to which the fitting is fixed, and the end of the tube (4) to be connected is inserted and held for a predetermined time, so that the tube (4) is inserted into the tube (4). Of the unwinding tube (3).
【００２２】上記各管継手（１０ａ）（１０ｂ）（１０
ｃ）はフレヤー加工前の末端直管部（６ｂ）に嵌込み、
その後末端直管部（６ｂ）にフレヤー加工を行い、フレ
ヤー部（２１）及び膨出部（２３）を加工形成するもの
で、このフレヤー加工時に衝撃を受ける継手本体（２
０）（２７）（２９）の端面及び内面に金属材を予め埋
込み、合成樹脂成形品である継手本体（２０）（２７）
（２９）の破損を防止すると共に、Ｏリング（２４）装
着部の強度を向上させて止水性を向上させるように構成
している。Each of the above pipe joints (10a) (10b) (10
c) is inserted into the end straight pipe part (6b) before flare processing,
Thereafter, the end straight pipe portion (6b) is flared to form a flared portion (21) and a bulged portion (23).
0) (27) (29) The joint body (20) (27), which is a synthetic resin molded product, in which a metal material is previously embedded in the end face and the inner face.
In addition to preventing the breakage of (29), the strength of the O-ring (24) mounting portion is improved to improve the water stoppage.
【００２３】即ち、継手本体（２０）（２７）（２９）
を射出成形する際に成形金型の中に内面に前記Ｏリング
溝（２２）を設けたステンレスブッシュ（３７）を入れ
ておき、インサート成形することにより、継手本体（２
０）（２７）（２９）の先端からＯリング（２４）を入
れるシール部より若干先までの内面側にブッシュ（３
７）を埋込み、フレヤー部（２１）のフレヤー加工時に
衝撃を受ける継手本体（２０）（２９）の先端面及び継
手本体（２７）の受口底面（２８）から膨出部（２３）
のフレヤー加工時に衝撃を受ける継手本体（２０）（２
７）（２９）のシール部の面を連続的に金属材で形成し
ている。That is, the joint body (20) (27) (29)
When the injection molding is performed, a stainless steel bush (37) provided with the O-ring groove (22) on the inner surface thereof is put in a molding die, and the joint body (2) is formed by insert molding.
0) (27) and (29) a bush (3) on the inner surface side slightly before the seal portion for inserting the O-ring (24).
7) is embedded, and a bulging portion (23) is formed from the distal end surfaces of the joint bodies (20) and (29) and the receiving bottom surface (28) of the joint body (27) which are subjected to impact during flaring of the flare portion (21).
(20) (2) subject to impact during flaring
7) The surface of the seal portion of (29) is continuously formed of a metal material.
【００２４】尚、回転形管継手（１０ｃ）の回転筒（３
１）のシール部の材質も金属材とすべく前記と同様にブ
ッシュ（３７）を埋め込むものである。The rotary tube (3) of the rotary type pipe joint (10c)
The bush (37) is buried in the same manner as described above so that the material of the seal portion of 1) is also a metal material.
【００２５】図７及び図８は合成樹脂製の配管（４）の
末端に金属製の多方継手（５）を接続させる構造を示し
ており、図中（５ａ）は継手本体、（３９）はパッキ
ン、（４０）はワッシャ、（４１）は抜止リング、（４
２）はナット、（４３）はステンレス製インコアーであ
り、配管（４）の末端内面側にインコアー（４３）を挿
入すると共に、インコアー（４３）を挿入した配管
（４）の末端外側にナット（４２）、抜止リング（４
１）、ワッシャ（４０）、パッキン（３９）の順序で挿
入し、これらを挿入した配管（４）の末端を継手本体
（５ａ）に差し込みナット（４２）で締付け、合成樹脂
製配管（４）の末端に金属製多方継手（５）を接続し、
多方継手（５）から多方向に巻出し管（３）を介してヘ
ッド（２）を取付けるように構成している。FIGS. 7 and 8 show a structure in which a metal multi-way joint (5) is connected to the end of a synthetic resin pipe (4), in which (5a) is the joint body, and (39) is the joint body. Packing, (40) washer, (41) retaining ring, (4
2) is a nut, and (43) is a stainless steel in-core. The in-core (43) is inserted into the inner end of the pipe (4), and the nut (43) is inserted into the outer end of the pipe (4) into which the in-core (43) is inserted. 42), retaining ring (4
1), a washer (40), and a packing (39) are inserted in this order, and the end of the pipe (4) into which these are inserted is inserted into the joint body (5a) and tightened with a nut (42), and the synthetic resin pipe (4) is inserted. A metal multi-way joint (5) to the end of
The head (2) is configured to be mounted from the multiway joint (5) in multiple directions through the unwinding tube (3).
【００２６】また多方継手（５）を配管（４）の末端に
直結しない場合には、耐熱性硬質塩化ビニル製のスリー
ブ状の管継手を配管（４）の末端と同様に締付けて設け
ておくことにより、この管継手を介して配管（４）の末
端と接着剤による接合を行うことができるものである。When the multi-way joint (5) is not directly connected to the end of the pipe (4), a sleeve-shaped pipe joint made of heat-resistant hard vinyl chloride is provided in the same manner as the end of the pipe (4). Thus, the end of the pipe (4) can be joined with the adhesive through the pipe joint.
【００２７】また図９も合成樹脂製配管（４）の末端に
金属製多方継手（５）を接続させる他の構造を示してお
り、先端部を配管（４）の末端に嵌合し接着剤により接
続させる耐熱性硬質塩化ビニル製のスリーブ状の管継手
（４４）を継手本体（５ａ）に設け、継手本体（５ａ）
に嵌合する管継手（４４）基端部をかしめリング（４
５）でかしめ固定させるものである。管継手（４４）を
継手本体（３８）の間にはＯリング（４６）（４７）を
入れてある。FIG. 9 also shows another structure in which a metal multi-way joint (5) is connected to the end of the synthetic resin pipe (4). The joint body (5a) is provided with a sleeve-like pipe joint (44) made of a heat-resistant hard vinyl chloride to be connected by the joint body (5a).
The base end of the pipe fitting (44) that fits into the ring (4)
5) Caulking and fixing. O-rings (46) and (47) are inserted between the pipe joint (44) and the joint body (38).
【００２８】さらに図１０も合成樹脂製配管（４）の末
端に金属製多方継手（５）を接続させる他の構造を示し
ており、先端側を配管（４）の末端に嵌合し接着剤によ
り接続させる耐熱性硬質塩化ビニル製の管継手（４４）
であるシュモク（４８）を継手本体（５ａ）に設け、継
手本体（５ａ）に嵌合するシュモク（４８）の頭部（４
９）をブッシュ（５０）を介して固定させるものであ
る。シュモク（４８）と継手本体（５ａ）間及びブッシ
ュ（５０）と継手本体（５ａ）間にはＯリング（５１）
（５２）（５３）を入れてある。FIG. 10 also shows another structure in which a metal multi-way joint (5) is connected to the end of the synthetic resin pipe (4). Joint made of heat-resistant hard vinyl chloride (44)
Is provided on the joint body (5a), and the head (4) of the hammer (48) to be fitted to the joint body (5a) is provided.
9) is fixed via a bush (50). O-ring (51) between the hammer (48) and the joint body (5a) and between the bush (50) and the joint body (5a)
(52) and (53) are included.
【００２９】尚、多方継手（５）と巻出し管（３）との
接続は、多方継手（５）の各分岐口に配管（４）との接
続口のような合成樹脂製の管継手を設ける場合には、本
実施例で示した巻出し管（３）の管継手（１０ａ）（１
０ｂ）（１０ｃ）を介して行う一方、多方継手（５）の
各分岐口に配管（４）との接続口のような合成樹脂製の
管継手を設けない場合には従来の一端に金属製のニップ
ルを設けた巻出し管を使用するものである。The connection between the multiway joint (5) and the unwinding pipe (3) is made by connecting a pipe joint made of a synthetic resin such as a connection port with the pipe (4) at each branch port of the multiway joint (5). In the case of providing the pipe joint (10a) (1) of the unwinding pipe (3) shown in this embodiment,
0b) and (10c) on the other hand, in the case where a synthetic resin pipe joint such as a connection port with a pipe (4) is not provided at each branch port of the multiway joint (5), a conventional metal end is provided at one end. The unwinding tube provided with the nipple is used.
【００３０】[0030]
【発明の効果】以上実施例から明らかなように本発明
は、波状部（７）を有する金属製管本体（８）の一端に
合成樹脂製管継手（１０ａ）（１０ｂ）（１０ｃ）を設
け、管本体（８）のフレヤー加工時に衝撃を受ける前記
管継手（１０ａ）（１０ｂ）（１０ｃ）の端面及び内面
に金属材（３７）を設け、該金属材（３７）を管継手
（１０ａ）（１０ｂ）（１０ｃ）の成形時に一体的に管
継手（１０ａ）（１０ｂ）（１０ｃ）に埋込むと共に、
金属材（３７）における管本体（８）の拡径膨出部（２
３）の対応位置に０リング装着用の０リング溝（２２）
を設けたもので、湿式スプリンクラー設備用合成樹脂配
管（４）に接続可能な金属製巻出し管（３）を得ること
ができ、また成形品である管継手（１０ａ）（１０ｂ）
（１０ｃ）を管本体（８）に嵌込んだ状態で行う管本体
（８）端部及び内周部のフレヤー加工による成形品の破
損を防止できると共に、０リング（２４）装着部の強度
も向上させて止水性を向上させることができる。As is apparent from the above embodiments, according to the present invention, synthetic resin pipe joints (10a) (10b) (10c) are provided at one end of a metal pipe body (8) having a corrugated portion (7). A metal material (37) is provided on the end and inner surfaces of the pipe joints (10a), (10b), and (10c) that are subjected to an impact during flaring of the pipe body (8) , and the metal material (37) is connected to the pipe joint.
(10a) (10b) (10c)
While being embedded in the joints (10a) (10b) (10c),
The enlarged diameter bulging portion (2) of the pipe body (8) in the metal material (37)
O-ring groove (22) for mounting O-ring at the corresponding position of 3)
The metal unwinding pipe (3) that can be connected to the synthetic resin pipe (4) for wet-type sprinkler equipment can be obtained, and the molded pipe joints (10a) (10b)
(10c) can be prevented from being damaged due to flaring of the end and inner peripheral portion of the tube body (8) performed in a state in which the (10c) is fitted into the tube body (8), and the strength of the O-ring (24) mounting portion.
Can also be improved to improve the water stoppage .
【００３１】また、管継手（１０ｃ）を内筒体（２９）
と外筒体（３１）とで形成し、スプリンクラー設備用合
成樹脂配管（４）に外筒体（３１）一端側を接続させ、
外筒体（３１）の他端側を、内筒体（２９）に回転のみ
許容して嵌合接続させると共に、内筒体（２９）の一端
側端面及び内面に金属材（３７）を埋込んだもので、管
継手（１０ｃ）を回転形とすることができるものであ
る。Further, the pipe joint (10c) is connected to the inner cylindrical body (29).
And an outer tubular body (31), for use with sprinkler equipment.
One end of the outer cylinder (31) is connected to the synthetic resin pipe (4),
The other end of the outer cylinder (31) is rotated only to the inner cylinder (29).
While allowing and fittingly connecting, one end of the inner cylindrical body (29)
A metal material (37) is embedded in the side end surface and the inner surface, and the pipe joint (10c) can be a rotary type.
【図１】巻出し管基端の合成樹脂製回転形管継手の断面
説明図。FIG. 1 is a cross-sectional explanatory view of a synthetic resin rotary pipe joint at the base end of an unwinding pipe.
【図２】湿式スプリンクラー設備用配管の概略図。FIG. 2 is a schematic view of piping for wet sprinkler equipment.
【図３】巻出し管の管本体の断面説明図。FIG. 3 is an explanatory sectional view of a tube main body of the unwinding tube.
【図４】巻出し管先端のスプリンクラーヘッド取付部の
断面説明図。FIG. 4 is a sectional explanatory view of a sprinkler head mounting portion at the end of an unwinding tube.
【図５】巻出し管基端の合成樹脂製固定オス形管継手の
断面説明図。FIG. 5 is an explanatory sectional view of a synthetic male fixed male pipe joint at the base end of the unwinding pipe.
【図６】巻出し管基端の合成樹脂製固定メス形管継手の
断面説明図。FIG. 6 is an explanatory cross-sectional view of a synthetic female fixed female pipe joint at the base end of the unwinding pipe.
【図７】湿式スプリンクラー設備用配管と多方継手の接
続構造を示す断面側面説明図。FIG. 7 is an explanatory sectional side view showing a connection structure between a wet sprinkler facility pipe and a multi-way joint.
【図８】湿式スプリンクラー設備用配管と多方継手の接
続構造を示す断面平面説明図。FIG. 8 is a cross-sectional plan view showing a connection structure between a wet sprinkler facility pipe and a multi-way joint.
【図９】湿式スプリンクラー設備用配管と多方継手の他
の接続構造を示す断面説明図。FIG. 9 is an explanatory sectional view showing another connection structure of the piping for the wet sprinkler facility and the multi-way joint.
【図１０】湿式スプリンクラー設備用配管と多方継手の
他の接続構造を示す断面説明図。FIG. 10 is an explanatory sectional view showing another connection structure of the piping for a wet sprinkler facility and a multi-way joint.
（３） スプリンクラーヘッド巻出し管 （４） スプリンクラー設備用合成樹脂製配管 （７） 波状部 （８） 管本体 （１０） ヘッド用継手 （２１） フレヤー部 （２２） Ｏリング溝 （２３） 膨出部 （３７） 金属材 (3) Sprinkler head unwinding pipe (4) Pipe made of synthetic resin for sprinkler equipment (7) Wavy part (8) Pipe body (10) Head joint (21) Flare part (22) O-ring groove (23) Swelling Part (37) Metal material
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｆ１６Ｌ 33/00 Ｆ１６Ｌ 27/08 Ｚ 33/28 (58)調査した分野(Int.Cl.7，ＤＢ名) F16L 47/06 A62C 35/60 - 35/68 F16L 21/00 - 21/08 F16L 33/00 - 33/28 ──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. 7 identification code FI F16L 33/00 F16L 27/08 Z 33/28 (58) Investigated field (Int.Cl. 7 , DB name) F16L 47/06 A62C 35/60-35/68 F16L 21/00-21/08 F16L 33/00-33/28
Claims (2)
（８）の一端に合成樹脂製管継手（１０ａ）（１０ｂ）
（１０ｃ）を設け、管本体（８）のフレヤー加工時に衝
撃を受ける前記管継手（１０ａ）（１０ｂ）（１０ｃ）
の端面及び内面に金属材（３７）を設け、該金属材（３
７）を管継手（１０ａ）（１０ｂ）（１０ｃ）の成形時
に一体的に管継手（１０ａ）（１０ｂ）（１０ｃ）に埋
込むと共に、金属材（３７）における管本体（８）の拡
径膨出部（２３）の対応位置に０リング装着用の０リン
グ溝（２２）を設けたことを特徴とするスプリンクラー
ヘッド巻出し管。1. A synthetic resin pipe joint (10a) (10b) is attached to one end of a metal pipe body (8) having a corrugated portion (7).
(10c), wherein the pipe joints (10a), (10b), and (10c) which receive an impact during flaring of the pipe body (8)
A metal material (37) is provided on the end face and the inner face of the metal material (3).
7) for forming pipe joints (10a) (10b) (10c)
Embedded in pipe joints (10a) (10b) (10c)
While expanding the pipe body (8) in the metal material (37).
O-ring for mounting 0-ring at the position corresponding to the diameter bulging portion (23)
A sprinkler head unwinding tube provided with a groove (22) .
筒体（３１）とで形成し、スプリンクラー設備用合成樹
脂配管（４）に外筒体（３１）一端側を接続させ、外筒
体（３１）の他端側を、内筒体（２９）に回転のみ許容
して嵌合接続させると共に、内筒体（２９）の一端側端
面及び内面に金属材（３７）を埋込んだことを特徴とす
る請求項１記載のスプリンクラーヘッド巻出し管。2. A synthetic tree for sprinkler equipment, wherein a pipe joint (10c) is formed by an inner cylinder (29) and an outer cylinder (31).
One end of the outer cylinder (31) is connected to the oil pipe (4),
The other end of the body (31) is allowed to rotate only to the inner cylinder (29).
To fit and connect, and one end side end of the inner cylindrical body (29).
The sprinkler head unwinding tube according to claim 1 , wherein a metal material (37) is embedded in the surface and the inner surface .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9177655A JP3072507B2 (en) | 1997-06-17 | 1997-06-17 | Sprinkler head unwinding tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9177655A JP3072507B2 (en) | 1997-06-17 | 1997-06-17 | Sprinkler head unwinding tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH116596A JPH116596A (en) | 1999-01-12 |
| JP3072507B2 true JP3072507B2 (en) | 2000-07-31 |
Family
ID=16034793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9177655A Expired - Fee Related JP3072507B2 (en) | 1997-06-17 | 1997-06-17 | Sprinkler head unwinding tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3072507B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101452209B1 (en) * | 2012-12-21 | 2014-10-22 | 주식회사 파라다이스산업 | Device for connecting pipe |
| WO2017134736A1 (en) * | 2016-02-02 | 2017-08-10 | 千住スプリンクラー株式会社 | Fire extinguishing system pipe connection structure and connection method therefor |
| JP6163632B1 (en) * | 2016-06-16 | 2017-07-19 | 千住スプリンクラー株式会社 | Fire fighting equipment piping connection structure |
-
1997
- 1997-06-17 JP JP9177655A patent/JP3072507B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH116596A (en) | 1999-01-12 |
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