JPH0515614A - Branch joint for sprinkler head - Google Patents
Branch joint for sprinkler headInfo
- Publication number
- JPH0515614A JPH0515614A JP20013391A JP20013391A JPH0515614A JP H0515614 A JPH0515614 A JP H0515614A JP 20013391 A JP20013391 A JP 20013391A JP 20013391 A JP20013391 A JP 20013391A JP H0515614 A JPH0515614 A JP H0515614A
- Authority
- JP
- Japan
- Prior art keywords
- water supply
- supply pipe
- sprinkler head
- water
- branch joint
- 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.)
- Granted
Links
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、給水本管の途中部に
スプリンクラヘッドを取付けるために使用される分岐継
手に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branch joint used for mounting a sprinkler head in the middle of a water supply main.
【０００２】[0002]
【従来の技術】スプリンクラ消火設備は、初期消火に非
常に有効であり、高層ビル、劇場、デパ−ト等のように
消防法で設置を義務づけられている建物のほか、火災の
発生し易い場所や、一般住宅でも設置が望ましい。スプ
リンクラヘッド１を天井面に設置する場合、従来例とし
て図９に縦断正面を示したように、給水本管２の途中部
にＴ型継手１０１を取付け、このＴ型継手１０１の分岐
部１０２に給水管１０３を、上下方向取付位置調整自在
に接続して、給水管１０３の下部にスプリンクラヘッド
１を取付ける構造が一般に採用されている。給水管１０
３の上下方向取付位置調整は、分岐部１０２のめねじ１
０４にねじ取付けした給水管ガイド１０５に調整用めね
じ１０６を設けておき、給水管１０３に形成した調整用
おねじ１０７を調整用めねじ１０６に捩じ込み、ロック
ナット１０８によって調整用めねじ１０６と調整用おね
じ１０７との緩み止めをする構造である。2. Description of the Related Art Sprinkler fire extinguishing equipment is very effective for initial fire extinguishing, and it is not only in buildings such as high-rise buildings, theaters, departments, etc. that must be installed by the Fire Service Act, but also in places where a fire is likely to occur. Also, it is desirable to install it in a general house. When the sprinkler head 1 is installed on the ceiling surface, as a conventional example, as shown in the vertical front view of FIG. 9, a T-type joint 101 is attached to a middle portion of the water supply main pipe 2, and a branch portion 102 of the T-type joint 101 is attached. A structure is generally adopted in which the water supply pipe 103 is connected so that the mounting position can be adjusted in the vertical direction and the sprinkler head 1 is attached to the lower part of the water supply pipe 103. Water pipe 10
3 is adjusted in the vertical direction by adjusting the female screw 1 of the branch 102.
An adjustment female thread 106 is provided on a water supply pipe guide 105 which is screwed to 04, and an adjustment male thread 107 formed on the water supply pipe 103 is screwed into the adjustment female thread 106, and a lock nut 108 is used to adjust the adjustment female thread. This is a structure for preventing the 106 and the adjusting male screw 107 from loosening.
【０００３】給水管１０３の下部にねじ取付けされてい
るスプリンクラヘッド１は、天井板３の取付孔４から室
内５に臨んでいる。天井板３の上方に位置する上位階の
フロア６とこの天井板３との空間に配設される給水本管
２の配管高さ（天井板３に対する）は、天井板３の上面
に配置されている図示しない照明設備や換気設備等によ
り、種々であり、従って、天井板３に対するスプリンク
ラヘッド１の取付高さを、分岐部１０２からの給水管１
０３の突出長さによって調整している。給水管１０３の
突出長さ調整は、次のようにして行われる。まず、Ｔ型
継手１０１を給水本管２に取付け、このＴ型継手１０１
に給水管ガイド１０５を取付ける。そして、給水管ガイ
ド１０５に給水管１０３を、その下端がほぼ天井板３の
位置となるようにねじ込んで仮調整しておく。次に予め
取付孔４が明けられた天井板３を仮止めし、取付孔４か
らボックスレンチを挿入して給水管１０３の下部に設け
られたスパナ−座１０９を回動させて給水管１０３を上
下し、天井板３に対する最適位置に微調整する。そし
て、天井板３を取外し、ロックナット１０８を締め付け
て位置を固定する。その後、天井板３が固定された時点
で、室内５側からスプリンクラヘッド１が給水管１０３
に取付けられる。The sprinkler head 1, which is screwed to the lower portion of the water supply pipe 103, faces the room 5 through the mounting hole 4 of the ceiling plate 3. The piping height of the water supply mains 2 (with respect to the ceiling plate 3) arranged in the space between the upper floor 6 located above the ceiling plate 3 and this ceiling plate 3 is arranged on the upper surface of the ceiling plate 3. There are various types of lighting equipment, ventilation equipment, etc., which are not shown in the figure.
It is adjusted by the protruding length of 03. The protrusion length of the water supply pipe 103 is adjusted as follows. First, the T-type joint 101 is attached to the water main pipe 2, and the T-type joint 101 is attached.
Attach the water supply pipe guide 105 to the. Then, the water supply pipe 103 is temporarily adjusted by screwing the water supply pipe 103 into the water supply pipe guide 105 so that the lower end of the water supply pipe 103 is substantially at the position of the ceiling plate 3. Next, the ceiling plate 3 having the mounting hole 4 preliminarily opened is temporarily fixed, a box wrench is inserted from the mounting hole 4, and the spanner seat 109 provided below the water supply pipe 103 is rotated to fix the water supply pipe 103. It goes up and down and is finely adjusted to the optimum position with respect to the ceiling plate 3. Then, the ceiling plate 3 is removed, and the lock nut 108 is tightened to fix the position. After that, when the ceiling plate 3 is fixed, the sprinkler head 1 is connected to the water supply pipe 103 from the room 5 side.
Mounted on.
【０００４】[0004]
【発明が解決しようとする課題】このように給水管１０
３の捩じ込み位置の微調整は、給水管１０３の下部に設
けられたスパナ−座１０９にボックスレンチを係合させ
て行うため、天井板３の取付孔４の大きさを、ボックス
レンチのような回動工具が自由に出し入れできる大きさ
にする必要がある。従って、かかる大きな取付孔４を覆
うシ−リングプレ−トも、大きなものとならざるを得な
い。また、給水管１０３の下部は、スパナ−座１０９に
係合しているボックスレンチによって隠されてしまうた
め、天井板３に対する位置を正確に決めるためには、手
数がかかる欠点がある。そして、前述のように初期消火
に有効であるスプリンクラ消火設備を一般住宅に設備す
る場合は、上位階のフロア６と天井板３との間隔は、極
めて小さいものであるため、給水管１０３も極めて短い
ものしか使用できない。この結果、上記取付状態で給水
管１０３の捩じ込み位置の微調整ができるように、給水
管１０３の外周に、捩じ込み回動のための例えばスパナ
−座１０９を設けるための余分な長さを確保することが
難しくなっている。この発明は、従来のスプリンクラヘ
ッド用分岐継手のかかる問題に鑑みて提案されたもの
で、給水管の捩じ込み位置の微調整を容易にかつ、正確
に行うことができると共に、天井板３の取付孔４の大き
さを小さくすることが可能となり、しかも給水管の長さ
を短くすることができ、一般住宅のように上位階のフロ
ア６と天井板３との間隔が極めて小さい場合にも支障無
く使用可能なスプリンクラヘッド用分岐継手を提供する
ことを目的としている。As described above, the water supply pipe 10 is provided.
The screwing position of 3 is finely adjusted by engaging the box wrench with the spanner seat 109 provided at the lower part of the water supply pipe 103. It is necessary to make such a rotating tool sized so that it can be freely taken in and out. Therefore, the sealing plate that covers the large mounting hole 4 must be large. Further, since the lower portion of the water supply pipe 103 is hidden by the box wrench engaged with the spanner seat 109, there is a drawback that it takes time to accurately determine the position with respect to the ceiling plate 3. When the sprinkler fire extinguishing equipment that is effective for initial fire extinguishing is installed in a general house as described above, the space between the floor 6 on the upper floor and the ceiling plate 3 is extremely small, so the water supply pipe 103 is also extremely Only short ones can be used. As a result, in order to finely adjust the screwing position of the water supply pipe 103 in the above-mentioned mounted state, an extra length is provided on the outer periphery of the water supply pipe 103 for providing a wrench seat 109 for screwing rotation. Is difficult to secure. The present invention has been proposed in view of such a problem of the conventional sprinkler head branch joint, and enables fine adjustment of the screwed-in position of the water supply pipe to be performed easily and accurately, and the ceiling plate 3 The size of the mounting hole 4 can be reduced, and the length of the water supply pipe can be shortened. Even when the space between the upper floor 6 and the ceiling plate 3 is extremely small as in a general house. An object of the present invention is to provide a branch joint for a sprinkler head that can be used without any trouble.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
この発明は、給水本管２の途中部にスプリンクラヘッド
１取付けのための分岐継手７が設けられ、スプリンクラ
ヘッド１の上下方向取付位置調整を、分岐継手７の分岐
部８に捩じ込みにより取付けられている給水管９、１９
が上記捩じ込み回動されることにより行われるようにし
たスプリンクラヘッド用分岐継手において、給水管９、
１９の上記捩じ込み用の回動工具３０、３１が係合でき
る回動用係合部Ｐを、給水管９、１９の下端面部に設け
ていることを特徴とする。In order to solve the above-mentioned problems, according to the present invention, a branch joint 7 for mounting the sprinkler head 1 is provided at an intermediate portion of a water supply main pipe 2 to adjust the mounting position of the sprinkler head 1 in the vertical direction. Is attached to the branch portion 8 of the branch joint 7 by screwing.
In the branch joint for the sprinkler head, the water supply pipe 9,
It is characterized in that a rotation engaging portion P with which the above-described screwing rotation tools 30 and 31 of 19 can be engaged is provided on the lower end surface portions of the water supply pipes 9 and 19.
【０００６】上記回動用係合部Ｐは、スプリンクラヘッ
ド１取付のための取付用めねじ１６から外れた位置に形
成した溝１８によって構成している。The rotation engaging portion P is formed by a groove 18 formed at a position deviated from the mounting female screw 16 for mounting the sprinkler head 1.
【０００７】上記回動用係合部Ｐは、スプリンクラヘッ
ド１取付のための取付用めねじ１６から外れた位置に形
成した凸状部２０によって構成してもよい。The rotation engaging portion P may be constituted by a convex portion 20 formed at a position off the attachment female screw 16 for attaching the sprinkler head 1.
【０００８】[0008]
【作用】給水管９、１９の下端面部に設けている回動用
係合部Ｐに、回動工具３０、３１を係合させて給水管
９、１９を捩じ込み回動することにより、分岐継手７に
取付けられている状態のまま、スプリンクラヘッド１の
上下方向取付位置の微調整を行うことができて、狭い天
井裏でのスプリンクラヘッド１の取付作業が容易化され
る。回動用係合部Ｐは、給水管９、１９の下端面部に設
けているので、捩じ込みの有効長さをこの回動用係合部
Ｐが短くするようなことは殆どなく、これにより給水管
９、１９は長くはならず、一般住宅のように上位階のフ
ロア６と天井板３との間隔が極めて小さい場合にも支障
無くこの分岐継手７を採用することができる。Function: The water supply pipes 9 and 19 are branched by engaging the rotating tools 30 and 31 with the rotating engaging portions P provided on the lower end surface portions of the water supply pipes 9 and 19 and screwing and rotating the water supply pipes 9 and 19. The vertical position of the sprinkler head 1 can be finely adjusted while the sprinkler head 1 is still attached to the joint 7, which facilitates the work of attaching the sprinkler head 1 in a narrow ceiling space. Since the rotation engaging portion P is provided on the lower end surface portions of the water supply pipes 9 and 19, the rotation engaging portion P rarely shortens the effective length of screwing, whereby the water supply is achieved. The pipes 9 and 19 do not become long, and the branch joint 7 can be adopted without any trouble even when the space between the floor 6 on the upper floor and the ceiling plate 3 is extremely small as in a general house.
【０００９】回動用係合部Ｐは、給水管９の下端面部に
溝１８を形成することによって簡単に実施できる。溝１
８は、スプリンクラヘッド１取付のための取付用めねじ
１６から外れた位置に形成しているので、この取付用め
ねじ１６に水漏れ防止テ−プを使用するときに、水漏れ
防止テ−プは溝１８には接触することがなく、捩じ込み
時に水漏れ防止テ−プが溝１８によって傷つくようなこ
とはなくなる。The rotation engaging portion P can be easily implemented by forming the groove 18 in the lower end surface portion of the water supply pipe 9. Groove 1
No. 8 is formed at a position separated from the mounting female screw 16 for mounting the sprinkler head 1. Therefore, when a water leakage preventing tape is used for this mounting female screw 16, a water leakage preventing tape is used. The groove does not come into contact with the groove 18 so that the water leakage prevention tape is not damaged by the groove 18 when screwed in.
【００１０】回動用係合部Ｐは、給水管１９の下端面部
に凸状部２０を形成することによって簡単に実施でき
る。凸状部２０は、スプリンクラヘッド１取付のための
取付用めねじ１６から外れた位置に形成しているので、
この取付用めねじ１６に水漏れ防止テ−プを使用すると
きに、水漏れ防止テ−プは凸状部には接触することがな
く、捩じ込み時に水漏れ防止テ−プが凸状部２０によっ
て傷つくようなことはなくなる。The rotation engaging portion P can be easily implemented by forming the convex portion 20 on the lower end surface portion of the water supply pipe 19. Since the convex portion 20 is formed at a position deviated from the mounting female screw 16 for mounting the sprinkler head 1,
When using the water leakage prevention tape for the female thread 16 for mounting, the water leakage prevention tape does not come into contact with the convex portion, and the water leakage prevention tape has a convex shape when screwed in. The part 20 does not hurt.
【００１１】[0011]
【実施例】以下、この発明の実施例を図に基づき説明す
る。図１に縦断正面を示したように、給水本管２の途中
部に正面視が大略Ｙ字形の分岐継手７を取付け、分岐継
手７の分岐部８に給水管９を、上下方向取付位置調整自
在に接続して、給水管９の下部に取付けているスプリン
クラヘッド１を、天井板３の取付孔４から室内５に臨ま
せている。分岐部８に形成したおねじ１０にめねじ１１
を螺合することにより、給水管ガイド１２を分岐部８の
下部に取付け、給水管９の上下方向取付位置調整は、給
水管９に形成した調整用おねじ１３を、給水管ガイド１
２の調整用めねじ１４に捩じ込み、給水管ガイド１２の
下端部位置にて調整用おねじ１３に螺合してるロックナ
ット１５によって調整用おねじ１３と調整用めねじ１４
との緩み止めをしている。給水管９の下部に設けてある
取付用めねじ１６に、スプリンクラヘッド１の取付用お
ねじ１７を螺合することにより、スプリンクラヘッド１
は給水管９に取付けられている。Embodiments of the present invention will be described below with reference to the drawings. As shown in the vertical sectional front view of FIG. 1, a branch joint 7 having a substantially Y-shaped front view is attached to an intermediate portion of the water supply main pipe 2, and a water supply pipe 9 is attached to a branch portion 8 of the branch joint 7 to adjust a vertical mounting position. The sprinkler head 1 attached to the lower portion of the water supply pipe 9 is freely connected to the interior 5 through the attachment hole 4 of the ceiling plate 3. Male thread 10 formed on branch 8 and female thread 11
The water supply pipe guide 12 is attached to the lower portion of the branching portion 8 by screwing. The vertical mounting position of the water supply pipe 9 is adjusted by adjusting the male screw 13 formed on the water supply pipe 9 to the water supply pipe guide 1.
The adjusting male screw 13 and the adjusting female screw 14 are screwed into the adjusting female screw 2 of No. 2 and the lock nut 15 is screwed into the adjusting male screw 13 at the lower end position of the water supply pipe guide 12.
To prevent it from loosening. The female screw 16 for mounting provided at the lower portion of the water supply pipe 9 is screwed with the male screw 17 for mounting of the sprinkler head 1, whereby the sprinkler head 1
Is attached to the water supply pipe 9.
【００１２】給水管９の上下方向取付位置調整にあた
り、この給水管９を給水管ガイド１２に対し、捩じ込み
回動するための図７あるいは図８に例示した回動工具３
０または回動工具３１の係合部Ｑが係合できるの回動用
係合部Ｐを、給水管９の下端面部に設けている。図３に
給水管９の正面図を、図４にその平面図を示したが、こ
の図３に例示している回動用係合部Ｐは、取付用めねじ
１６から外れた位置に形成した２個以上(図示例では４
個)の溝１８によって構成している。即ち、取付用めね
じ１６の谷部１６ａよりも内径を若干大径に形成した端
面部に、この溝１８を切り込むことにより、溝１８は、
取付用めねじ１６から外れた位置に形成されることにな
る。When adjusting the vertical mounting position of the water supply pipe 9, the water supply pipe 9 is screwed into the water supply pipe guide 12 for rotation, and the rotating tool 3 illustrated in FIG. 7 or 8 is used.
0 or a rotation engaging portion P capable of engaging with the engagement portion Q of the rotating tool 31 is provided on the lower end surface portion of the water supply pipe 9. A front view of the water supply pipe 9 is shown in FIG. 3 and a plan view thereof is shown in FIG. 4. The rotation engaging portion P illustrated in FIG. 3 is formed at a position deviated from the mounting female screw 16. 2 or more (4 in the example shown)
The groove 18 is made up of individual pieces. That is, the groove 18 is formed by cutting the groove 18 into the end face portion of which the inner diameter is slightly larger than the valley portion 16a of the female screw 16 for mounting.
It is formed at a position off the mounting female screw 16.
【００１３】給水本管２内を図１の左方から右方へ水が
流れるとき、矢線で模型的に例示するように分岐継手７
内の上部付近を流れる水流ｗ1の粘性による吸引作用
と、分岐継手７内の下部付近をスプリンクラヘッド１に
向かって流れる水流ｗ3とによって、給水管９内に渦流
ｗ2が発生することになるように、分岐継手７の正面視
大略Ｙ字形や、各部の内部形状等が設定されている。When water flows from the left side to the right side in FIG. 1 in the main water supply pipe 2, a branch joint 7 is provided as shown in a model by an arrow.
The vortex flow w 2 is generated in the water supply pipe 9 due to the suction action due to the viscosity of the water flow w 1 flowing near the upper part of the inside of the branch joint 7 and the water flow w 3 flowing toward the sprinkler head 1 near the lower part of the branch joint 7. In such a manner, the Y-shape of the branch joint 7 as viewed from the front and the internal shape of each part are set.
【００１４】次に上記実施例の作用を説明する。スプリ
ンクラヘッド１を取付けるときは、分岐継手７へ取付け
る前に、フロア６と天井板３との間隔及び、給水本管２
の配管高さなどに応じて給水管ガイド１２の調整用めね
じ１４に対する給水管９の調整用おねじ１３の捩じ込み
位置を、仮調整しておく。フロア６と天井板３との間隔
が小さい場合には、給水管９は図１のように分岐部８へ
十分入り込んだ位置で仮にセットされ、上記間隔が大き
い場合には、給水管９は図２のように分岐部８から長く
突出した位置で仮にセットされる。即ち、給水本管２に
取付けられた分岐継手７の分岐部８に給水管ガイド１２
を螺合して固定する。上記のように仮調整された給水管
９を挿入し、給水管ガイド１２のめねじ１１を分岐部８
のおねじ１０に螺合して固定する。次に、予め取付孔４
が設けられた天井板３を、仮当てする。このとき、給水
管９の下端面部が天井板３の取付孔４のすぐ上方にのぞ
み、溝１８は、取付孔４から見えている。そこで、必要
があればこれらの溝１８に、例えば図７、図８に例示し
た回動工具３０又は３１の係合部Ｑを、取付孔４を介し
て係合し、給水管９を捩じ込み回動すれば、給水管ガイ
ド１２の調整用めねじ１４に対する調整用おねじ１３の
螺合動作により、給水管９は分岐部８に対して上下に移
動する。このとき、溝１８に係合している回動工具３０
又は、３１は、給水管９の下部を隠すことがないため、
給水管９の下端の位置を見ながら微調整ができる。これ
により、分岐継手７に給水管ガイド１２と給水管９とが
取付けられている状態のまま、給水管９の上下方向取付
位置の微調整を行うことができることになる。給水管９
の上記上下移動調整が終われば仮止めした天井板３を取
外し、ロックナット１５を締め付ることで給水管９は固
定される。その後、天井板３が取付けられた時点で、室
内５側からスプリンクラヘッド１の取付用おねじ１７
を、給水管９の取付用めねじ１６に捩じ込み固定する。Next, the operation of the above embodiment will be described. When installing the sprinkler head 1, before installing it on the branch joint 7, the space between the floor 6 and the ceiling plate 3 and the water supply main 2
The position at which the adjusting male screw 13 of the water supply pipe 9 is screwed into the adjusting female screw 14 of the water supply pipe guide 12 is provisionally adjusted according to the height of the pipe. When the space between the floor 6 and the ceiling plate 3 is small, the water supply pipe 9 is temporarily set at a position that sufficiently enters the branch portion 8 as shown in FIG. 1, and when the space is large, the water supply pipe 9 is It is temporarily set at a position where it projects from the branching portion 8 as shown by 2. That is, the water supply pipe guide 12 is attached to the branch portion 8 of the branch joint 7 attached to the water supply main pipe 2.
Secure by screwing. The water supply pipe 9 temporarily adjusted as described above is inserted, and the female screw 11 of the water supply pipe guide 12 is inserted into the branch portion 8
The male screw 10 is screwed and fixed. Next, the mounting hole 4 in advance
The ceiling plate 3 provided with is temporarily applied. At this time, the lower end surface portion of the water supply pipe 9 is directly above the mounting hole 4 of the ceiling plate 3, and the groove 18 is visible from the mounting hole 4. Therefore, if necessary, these grooves 18 are engaged with the engaging portions Q of the rotary tools 30 or 31 illustrated in FIGS. 7 and 8 through the mounting holes 4, and the water supply pipe 9 is screwed. When rotated, the water supply pipe 9 moves up and down with respect to the branch portion 8 due to the screwing operation of the adjusting male screw 13 with the adjusting female screw 14 of the water supply pipe guide 12. At this time, the rotary tool 30 engaged with the groove 18
Or, since 31 does not hide the lower part of the water supply pipe 9,
Fine adjustment can be performed while looking at the position of the lower end of the water supply pipe 9. As a result, fine adjustment of the vertical mounting position of the water supply pipe 9 can be performed while the water supply pipe guide 12 and the water supply pipe 9 are attached to the branch joint 7. Water pipe 9
When the above vertical movement adjustment is completed, the temporarily fixed ceiling plate 3 is removed, and the lock nut 15 is tightened to fix the water supply pipe 9. After that, when the ceiling board 3 is attached, the male screw 17 for attaching the sprinkler head 1 is attached from the room 5 side.
Is screwed in and fixed to the female thread 16 for mounting the water supply pipe 9.
【００１５】従来は、前記のように、給水管１０３の取
付位置の微調整には、給水管１０３の外周に係合する構
造の工具、例えばボックスレンチを、天井板３の取付孔
４に挿通して行っていたため、給水管１０３の下端の位
置を直接見ながら行うことはできず、その調整に多くの
手数を必要としていた。この実施例では、給水管９の下
端の位置を直接見ながら微調整ができるので、調整が容
易となり、短時間で正確に行うことができる。しかも従
来は、給水管１０３の外周に係合する構造の工具を天井
板３の取付孔４に挿通して調整していたため、取付孔４
を大きな孔にしなければならなかったのに対し、この実
施例では取付孔４を、給水管９が挿通可能な程度の小さ
い大きさとすることができる。回動用係合部Ｐである溝
１８は、給水管９の下端面部に設けているので、捩じ込
みの有効長さをこの溝１８が短くすることようなことは
殆どなく、これにより給水管９は長くはない。又、一般
住宅のように上位階のフロア６と天井板３との間隔が極
めて小さい場合にも支障無くこの分岐継手７を採用する
ことができる。Conventionally, as described above, for fine adjustment of the mounting position of the water supply pipe 103, a tool having a structure engaging with the outer periphery of the water supply pipe 103, for example, a box wrench, is inserted into the mounting hole 4 of the ceiling plate 3. Since it was performed, it was not possible to directly observe the position of the lower end of the water supply pipe 103, and it took a lot of trouble to adjust it. In this embodiment, since the fine adjustment can be performed while directly looking at the position of the lower end of the water supply pipe 9, the adjustment becomes easy and can be performed accurately in a short time. Moreover, conventionally, since a tool having a structure that engages with the outer periphery of the water supply pipe 103 is inserted into the mounting hole 4 of the ceiling plate 3 for adjustment, the mounting hole 4
While the mounting hole 4 must be made large, the mounting hole 4 can be made small enough to allow the water supply pipe 9 to be inserted therethrough. Since the groove 18 that is the rotation engaging portion P is provided on the lower end surface portion of the water supply pipe 9, the groove 18 rarely shortens the effective length of screwing. 9 is not long. Further, the branch joint 7 can be adopted without any trouble even when the space between the upper floor 6 and the ceiling plate 3 is extremely small as in a general house.
【００１６】溝１８は、スプリンクラヘッド取付のため
の取付用めねじ１６から外れた位置に形成しているの
で、スプリンクラヘッド１の取付による水漏れ防止のた
めスプリンクラヘッド１の取付用おねじ１７に図示しな
い水漏れ防止テ−プを巻いて給水管９の取付用めねじ１
６にこの取付用おねじ１７を捩じ込んだとき、水漏れ防
止テ−プは溝１８には接触することがない。従って、捩
じ込み時に水漏れ防止テ−プが溝１８によって引き裂か
れるようなことはなく、取付用おねじ１７と取付用めね
じ１６との間に所定に介在する水漏れ防止テ−プによる
スプリンクラヘッド１の取付部の水漏れ防止機能が損な
われることはない。Since the groove 18 is formed at a position deviated from the female screw 16 for mounting the sprinkler head, the male screw 17 for mounting the sprinkler head 1 is mounted on the male screw 17 for preventing water leakage due to the mounting of the sprinkler head 1. A female thread 1 for mounting the water supply pipe 9 by winding a water leakage prevention tape (not shown)
When the mounting male screw 17 is screwed into the screw 6, the water leakage prevention tape does not come into contact with the groove 18. Therefore, the water leakage prevention tape is not torn by the groove 18 when screwed in, and the water leakage prevention tape is interposed between the male mounting screw 17 and the female mounting screw 16 in a predetermined manner. The water leak prevention function of the attachment portion of the sprinkler head 1 is not impaired.
【００１７】尚、図示例の正面視大略Ｙ字形の分岐継手
７は、給水本管２として上水道本管を使用する簡易形の
スプリンクラ設備における死水発生の防止に有効であ
る。即ち、例えばこの給水本管２に接続された図示しな
い蛇口を開いて図１の左方から右方へ水が流れるとき、
Ｙ字形のため、分岐継手７内の上部付近を流れる水流ｗ
1と、分岐継手７内の下部付近を給水管９に向う水流ｗ3
を生じる。水流ｗ1の粘性によって給水管９内の下部付
近の水は吸引され、かつ、水流ｗ3は直接、給水管９内
の下部付近とスプリンクラヘッド１のヘッド接続口１ａ
に流入して渦流ｗ2を発生させる。この渦流ｗ2は、ヘッ
ド接続口１ａ内及び、給水管９内の水を撹拌しながら、
これらの水を下流側の給水本管２へ送り出すので、ヘッ
ド接続口１ａ内及び、給水管９内の水は滞留せず、死水
発生は防止され、このスプリンクラ設備系の給水本管２
は飲料として使用できる。分岐継手は、上記Ｙ字形のみ
に限られるものではなく、例えば通常のＴ型継手を使用
しても、この考案の前記主要作用は得ることができる。The branch joint 7 having a substantially Y-shape in a front view in the illustrated example is effective for preventing dead water in a simple sprinkler facility using a water main as the water main 2. That is, for example, when water is flowed from the left side to the right side in FIG. 1 by opening a faucet (not shown) connected to the water supply main line 2,
Since it is Y-shaped, the water flow w flowing near the upper part in the branch joint 7
1 and the water flow w 3 toward the water supply pipe 9 near the lower part in the branch joint 7
Cause Due to the viscosity of the water flow w 1 , the water in the vicinity of the lower part in the water supply pipe 9 is sucked, and the water flow w 3 directly directly in the vicinity of the lower part in the water supply pipe 9 and the head connection port 1 a of the sprinkler head 1.
To generate a vortex flow w 2 . The vortex flow w 2 stirs water in the head connection port 1a and the water supply pipe 9,
Since these waters are sent to the water supply main 2 on the downstream side, the water in the head connection port 1a and the water supply pipe 9 does not stay, and dead water is prevented from occurring, and the water supply main 2 of this sprinkler facility system is prevented.
Can be used as a beverage. The branch joint is not limited to the above-mentioned Y-shape, but the main operation of the present invention can be obtained even if an ordinary T-joint is used.
【００１８】この考案の他の実施例に使用する給水管１
９を、図５に正面図で、図６にその平面図で、夫々示し
た。この実施例では、回動用係合部Ｐは、取付用めねじ
１６から外れた位置に形成した２個以上(図示例では４
個)の凸状部２０によって構成している。即ち、取付用
めねじ１６の谷部１６ａよりも内径を若干大径に形成し
た端面部に、この凸状部２０を設けることにより、凸状
部２０は、取付用めねじ１６から外れた位置に形成され
る。Water supply pipe 1 used in another embodiment of the present invention
9 is shown in a front view in FIG. 5 and in a plan view in FIG. 6, respectively. In this embodiment, two or more rotation engaging portions P are formed at positions off the mounting female screw 16 (4 in the illustrated example).
It is composed of the individual convex portions 20. That is, by providing the convex portion 20 on the end surface portion of the mounting female screw 16 having an inner diameter slightly larger than the valley portion 16a, the convex portion 20 is located at a position off the mounting female screw 16. Is formed.
【００１９】この第２実施例も、取付位置の微調整のた
めの給水管１９の取外しは不用となり、しかも、取付け
られている状態のまま、給水管１９の上下方向取付位置
の微調整を行うので、微調整は極めて容易かつ、正確に
行われるうえ、回動用係合部Ｐである凸状部２０は、給
水管１９の下端面部に設けているので、捩じ込みの有効
長さを凸状部２０が短くすることようなことは殆どな
く、給水管１９は長くはならず、一般住宅のように上位
階のフロア６と天井板３との間隔が極めて小さい場合に
も支障無くこの分岐継手７を採用することができるほ
か、凸状部２０は取付用めねじ１６から外れた位置に形
成しているので、取付用おねじ１７と取付用めねじ１６
との間に使用する水漏れ防止テ−プが、捩じ込み時に凸
状部２０によって引き裂かれるようなことはないとい
う、前述した第１実施例と同一の作用効果を備えてい
る。Also in this second embodiment, it is not necessary to remove the water supply pipe 19 for fine adjustment of the mounting position, and moreover, the mounting position of the water supply pipe 19 is finely adjusted in the mounted state. Therefore, fine adjustment is extremely easy and accurate, and since the convex portion 20 which is the rotation engaging portion P is provided on the lower end surface portion of the water supply pipe 19, the effective length of screwing is convex. The branch 20 is rarely shortened, the water supply pipe 19 does not become long, and even if the space between the floor 6 on the upper floor and the ceiling plate 3 is extremely small, such as in a general house, this branch will not be a problem. Since the joint 7 can be employed and the convex portion 20 is formed at a position deviated from the mounting female screw 16, the male mounting screw 17 and the female mounting screw 16 are mounted.
The tape has the same function and effect as the first embodiment described above, in that the water leakage prevention tape used between and is not torn by the convex portion 20 when screwed.
【００２０】ところで上記各実施例では、給水管９の外
周全体にわたって調整用おねじ１３を設けて、給水管９
のほぼ全長が分岐継手７の分岐部８内に入る場合につい
て説明したが、一般のビルのように給水本管２とスプリ
ンクラヘッドとの間に大きな間隙がある場合には、給水
管９をその間隙に見合った長さの給水管とし、この給水
管９の上部に調整用おねじ１３を設け、下部には取付用
めねじを設け、その下端面部に溝１８あるいは、凸状部
２０を設けるようにすればよい。なお、天井板３に設け
る取付孔４の大きさは、工具の出し入れや天井板３を本
固定する際の位置ずれなどを考慮すると、上記従来のも
のでは実際には少なくとも給水管９の下端部の２倍程度
とする必要がある。しかし、この発明の実施例によれ
ば、天井板の位置ずれなどを考慮した場合には、少なく
とも給水管９の下端部の1.5倍程度にすればよい。By the way, in each of the above-described embodiments, the adjusting male screw 13 is provided over the entire outer circumference of the water supply pipe 9 to make the water supply pipe 9
The description has been given of the case where almost the entire length of the water enters into the branch portion 8 of the branch joint 7. However, when there is a large gap between the water supply main 2 and the sprinkler head as in a general building, the water supply pipe 9 is A water supply pipe having a length commensurate with the gap is provided, an adjusting male screw 13 is provided on the upper portion of the water supply pipe 9, an attaching female screw is provided on the lower portion, and a groove 18 or a convex portion 20 is provided on the lower end surface portion thereof. You can do it like this. The size of the mounting hole 4 provided in the ceiling plate 3 is actually at least the lower end portion of the water supply pipe 9 in the above-mentioned conventional one in consideration of the displacement of the tool when the tool is taken in and out or the ceiling plate 3 is permanently fixed. It is necessary to make it about twice. However, according to the embodiment of the present invention, when the positional deviation of the ceiling plate is taken into consideration, it should be at least about 1.5 times the lower end of the water supply pipe 9.
【００２１】[0021]
【発明の効果】以上のようにこの発明によれば、給水管
９、１９の下端面部に設けている回動用係合部Ｐに、回
動工具３０、３１を係合させて給水管９、１９を捩じ込
み回動するようにしたので、給水管９、１９の下端の位
置を直接見ながら調整ができるため、スプリンクラヘッ
ド１の上下方向取付位置の微調整を、容易に、かつ、正
確に行うことができる。また、従来のように、微調整に
際し、給水管の外周部を利用して給水管を回動するもの
でないため、この発明によれば、天井板３の取付孔４の
大きさを小さくすることが可能であり、取付孔４を覆う
シ−リングプレ−トを、小型化もしくは不用とすること
が可能となった。回動用係合部Ｐは、給水管９、１９の
下端面部に設けているので、捩じ込みの有効長さをこの
回動用係合部Ｐが短くすることようなことは殆どなく、
これにより給水管９、１９は長くはならず、一般住宅の
ように上位階のフロア６と天井板３との間隔が極めて小
さい場合にも支障無くこの分岐継手７を採用することが
できて、種々の建物に使用可能となった。As described above, according to the present invention, the rotating tools 30, 31 are engaged with the rotating engaging portions P provided on the lower end surface portions of the water supply pipes 9, 19, respectively. Since 19 is screwed and rotated, it is possible to make an adjustment while directly looking at the positions of the lower ends of the water supply pipes 9 and 19, so that fine adjustment of the vertical mounting position of the sprinkler head 1 can be performed easily and accurately. Can be done. Further, unlike the conventional case, the fine adjustment is not performed by using the outer peripheral portion of the water supply pipe to rotate the water supply pipe. Therefore, according to the present invention, the size of the mounting hole 4 of the ceiling plate 3 can be reduced. It is possible to reduce the size of the sealing plate that covers the mounting hole 4 or to dispense with it. Since the rotation engaging portion P is provided on the lower end surface portions of the water supply pipes 9 and 19, it is unlikely that the rotation engaging portion P shortens the effective length of screwing.
As a result, the water supply pipes 9 and 19 do not become long, and the branch joint 7 can be adopted without any trouble even when the distance between the upper floor 6 and the ceiling plate 3 is extremely small like in a general house. It can be used for various buildings.
【００２２】回動用係合部Ｐは、給水管９の下端面部に
溝１８を形成することによって簡単に実施でき、溝１８
は、スプリンクラヘッド１取付のための取付用めねじ１
６から外れた位置に形成しているので、この取付用めね
じ１６に水漏れ防止テ−プを使用するときに、水漏れ防
止テ−プは溝１８には接触することがなく、捩じ込み時
に水漏れ防止テ−プが溝１８によって傷つくようなこと
はない。The rotation engaging portion P can be easily implemented by forming the groove 18 in the lower end surface portion of the water supply pipe 9.
Is a female screw 1 for mounting the sprinkler head 1
Since it is formed at a position deviated from 6, when the water leakage prevention tape is used for the female thread 16 for mounting, the water leakage prevention tape does not come into contact with the groove 18 and is twisted. The groove 18 does not damage the water leakage prevention tape when it is inserted.
【００２３】回動用係合部Ｐは、給水管１９の下端面部
に凸状部２０を形成することによって簡単に実施でき、
凸状部２０は、スプリンクラヘッド１取付のための取付
用めねじ１６から外れた位置に形成しているので、この
取付用めねじ１６に水漏れ防止テ−プを使用するとき
に、水漏れ防止テ−プは凸状部には接触することがな
く、捩じ込み時に水漏れ防止テ−プが凸状部２０によっ
て傷つくようなことはない。The rotation engaging portion P can be easily implemented by forming the convex portion 20 on the lower end surface portion of the water supply pipe 19,
Since the convex portion 20 is formed at a position deviated from the female thread 16 for mounting for mounting the sprinkler head 1, when the water leakage preventing tape is used for the female thread 16 for mounting, the water leakage prevention is performed. The prevention tape does not come into contact with the convex portion, and the water leakage prevention tape is not damaged by the convex portion 20 when screwed in.
【図１】この発明の第１実施例を適用したスプリンクラ
分岐継手における一の使用状態を示す縦断正面図であ
る。FIG. 1 is a vertical sectional front view showing one usage state of a sprinkler branch joint to which a first embodiment of the present invention is applied.
【図２】図１の実施例のスプリンクラ分岐継手における
他の使用状態を示す縦断正面図である。FIG. 2 is a vertical sectional front view showing another usage state of the sprinkler branch joint of the embodiment of FIG.
【図３】図１の実施例に使用している給水管の正面図で
ある。FIG. 3 is a front view of a water supply pipe used in the embodiment of FIG.
【図４】図３の平面図である。FIG. 4 is a plan view of FIG.
【図５】この発明の第２実施例に使用する給水管の正面
図である。FIG. 5 is a front view of a water supply pipe used in a second embodiment of the present invention.
【図６】図５の平面図である。FIG. 6 is a plan view of FIG.
【図７】上記実施例に使用する回動工具の一例を示す斜
視図である。FIG. 7 is a perspective view showing an example of a rotating tool used in the above embodiment.
【図８】上記実施例に使用する回動工具の他の例を示す
斜視図である。FIG. 8 is a perspective view showing another example of the turning tool used in the above embodiment.
【図９】従来のスプリンクラ分岐継手を示す縦断正面図
である。FIG. 9 is a vertical sectional front view showing a conventional sprinkler branch joint.
１ スプリンクラヘッド ２ 給水本管 ７ 分岐部 ９、１９ 給水管 １６ 取付用めねじ １８ 溝(回動用係合部Ｐ) ２０ 凸状部(回動用係合部Ｐ) ３０、３１ 回動工具 1 sprinkler head 2 water supply main 7 branches 9, 19 Water supply pipe 16 Female thread for mounting 18 grooves (rotating engaging part P) 20 Convex part (rotating engaging part P) 30, 31 Rotating tool
Claims (3)
ド取付けのための分岐継手が設けられ、スプリンクラヘ
ッドの上下方向取付位置調整を、分岐継手の分岐部に捩
じ込みにより取付けられている給水管が上記捩じ込み回
動されることにより行われるようにしたスプリンクラヘ
ッド用分岐継手において、 給水管の上記捩じ込み回動用の回動工具が係合できる回
動用係合部を、給水管の下端面部に設けていることを特
徴とするスプリンクラヘッド用分岐継手。1. A water supply pipe in which a branch joint for mounting a sprinkler head is provided in the middle of the water supply main pipe, and the vertical mounting position adjustment of the sprinkler head is screwed into the branch portion of the branch joint. In the branch joint for the sprinkler head, which is carried out by the above-mentioned screw-turning, the turning engaging portion which can be engaged with the turning tool for turning-in the water supply pipe is provided with A branch joint for a sprinkler head, which is provided on the lower end surface.
ッド取付のための取付用めねじから外れた位置に形成し
た溝であることを特徴とする請求項１のスプリンクラヘ
ッド用分岐継手。2. The branch joint for a sprinkler head according to claim 1, wherein the rotation engaging portion is a groove formed at a position deviated from a female screw for attaching the sprinkler head.
ヘッド取付のための取付用めねじから外れた位置に形成
した凸状部であることを特徴とする請求項１のスプリン
クラヘッド用分岐継手。3. The branch joint for a sprinkler head according to claim 1, wherein the engaging / rotating engagement portion is a convex portion formed at a position deviated from an attachment female screw for attaching the sprinkler head. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03200133A JP3118650B2 (en) | 1991-07-15 | 1991-07-15 | Branch joint for sprinkler head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03200133A JP3118650B2 (en) | 1991-07-15 | 1991-07-15 | Branch joint for sprinkler head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0515614A true JPH0515614A (en) | 1993-01-26 |
| JP3118650B2 JP3118650B2 (en) | 2000-12-18 |
Family
ID=16419349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03200133A Expired - Lifetime JP3118650B2 (en) | 1991-07-15 | 1991-07-15 | Branch joint for sprinkler head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3118650B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000065276A (en) * | 1998-08-24 | 2000-03-03 | Inax Corp | Connecting structure of tubular member |
| JP2003028354A (en) * | 2001-07-19 | 2003-01-29 | Asahi Organic Chem Ind Co Ltd | Connecting structure for member such as valve |
| JP2007082662A (en) * | 2005-09-21 | 2007-04-05 | Yamato Protec Co | Fitting for connecting home sprinkler head |
| JP2010075398A (en) * | 2008-09-25 | 2010-04-08 | Toto Ltd | Sprinkler device |
| JP2010094392A (en) * | 2008-10-20 | 2010-04-30 | Bridgestone Corp | Connecting joint of sprinkler head, and sprinkler system |
| KR200466000Y1 (en) * | 2012-07-23 | 2013-03-22 | 강태영 | Water supply conecting-apparatus for the firefighting vehicles |
-
1991
- 1991-07-15 JP JP03200133A patent/JP3118650B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000065276A (en) * | 1998-08-24 | 2000-03-03 | Inax Corp | Connecting structure of tubular member |
| JP2003028354A (en) * | 2001-07-19 | 2003-01-29 | Asahi Organic Chem Ind Co Ltd | Connecting structure for member such as valve |
| JP2007082662A (en) * | 2005-09-21 | 2007-04-05 | Yamato Protec Co | Fitting for connecting home sprinkler head |
| JP2010075398A (en) * | 2008-09-25 | 2010-04-08 | Toto Ltd | Sprinkler device |
| JP2010094392A (en) * | 2008-10-20 | 2010-04-30 | Bridgestone Corp | Connecting joint of sprinkler head, and sprinkler system |
| KR200466000Y1 (en) * | 2012-07-23 | 2013-03-22 | 강태영 | Water supply conecting-apparatus for the firefighting vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3118650B2 (en) | 2000-12-18 |
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