JPH054637Y2 - - Google Patents
Info
- Publication number
- JPH054637Y2 JPH054637Y2 JP16079086U JP16079086U JPH054637Y2 JP H054637 Y2 JPH054637 Y2 JP H054637Y2 JP 16079086 U JP16079086 U JP 16079086U JP 16079086 U JP16079086 U JP 16079086U JP H054637 Y2 JPH054637 Y2 JP H054637Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- joint
- branch
- ventilation
- vent
- 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 - Lifetime
Links
- 238000009423 ventilation Methods 0.000 claims description 64
- 210000000078 claw Anatomy 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Description
この考案は、主として高層建築物等の排水立管
システムにおける通気経路に通気用枝管を接続配
管するための二層管用通気管分岐継手に関する。
This invention mainly relates to a vent pipe branch joint for a two-layer pipe for connecting a vent branch pipe to a ventilation route in a drainage standpipe system of a high-rise building or the like.
従来の二管式による排水立管システムにあつて
は、通気用立管に通気枝管を継手で接続し、上記
排水立管の頂部に通気立管を接続し、伸頂通気管
として大気に開放されているが、この通気用立管
には排水用立管の要所と結合通気管で接続し、さ
らに上記各排水用横枝管からのループ通気管等を
通気用立管に接続配管している。
In the conventional two-pipe drainage standpipe system, a ventilation branch pipe is connected to the ventilation standpipe with a joint, and the ventilation standpipe is connected to the top of the drainage standpipe, and the top vent pipe is connected to the atmosphere. Although it is open, this ventilation standpipe is connected to the important points of the drainage standpipe with a joint ventilation pipe, and the loop ventilation pipes etc. from each of the above drainage side branch pipes are connected to the ventilation standpipe. are doing.
このような従来の排水立管システムでは、排水
用立管とは別に通気用立管を設けなければなら
ず、しかも、この通気用立管に排水用立管の要所
を結合通気管で接続し、また、上記通気用立管に
上記排水用横枝管をループ通気管で接続しなけれ
ばならず、それらの接続構造が極めて複雑であ
る。
従つて、それらの配管施工作業が頗る煩雑化
し、その作業には相当の時間と労力を費やし且つ
コスト高になるだけでなく、大きな配管スペース
を要するので、狭隘場所での施工・設置が非常に
困難であつた。
また、上記配管施工作業は、排水負荷等に応じ
た管材・継手および工作機械や工具類等の準備と
その準備場所の大きなスペースが必要であり、こ
れらの管理作業に加えて付帯設備（仮設電気、作
業場、建物進渉状況に応じての作業場の移動等）
が必要であつた。
さらに、これらの配管作業終了後の変更あるい
は既存配管の更新作業にあつては、配管のサイズ
替え、配管方向と接続高さ等の切替調整作業が生
じるほか、作業日程の調整や作業員の手配替え等
を余儀なくされ、無駄な時間と費用を要するとい
う問題点があつた。
なお、従来の排水特殊配管継手として、その
他、種々構造のものが提供されてはいるが、その
殆どが管材に対し一体的に組込んで配管接続する
もので、１つの継手では、異径管の配管接続は元
より、その配管方向と配管位置の調整等が不可能
であり、このため、使用用途もホテルや集合住宅
に限られた上、配管変更に対処するためには、上
記同様の無駄な時間と費用を要するという問題点
があつた。
また、実公昭59−4226号に記載の管継手もあ
り、弾性ゴム質の継手本体の少なくとも一端を端
壁で閉じ、該端壁の外面に同心円状の溝を刻設
し、かつ、上記継手本体の内周面にその軸心側に
向つて斜めに先すぼまり状の舌片を突設した構造
としてはいるが、この管継手の場合、排水異径管
に一体の枝管に嵌込んでバンド締めにより取付け
ているため、上記管継手で上記枝管に接続された
横引き管の自重によつて上記継手本体の落ち込み
が生じ、管接続のシール性能が損なわれる虞れが
ある。
従つて、上記継手本体の落ち込み防止専用リン
グを必要とする。
しかも、上記管継手は、枝管を一体に有する排
水異径管の横引き管接続にしか適用できず、直管
部には適用不可能である。
また、上記枝管と、これに上記管継手を介して
接続される横引き管の管径が大きく異なる場合、
それらの相互間に大きな隙間が生じ、この隙間に
排水中の固形物が付着堆積することによる管詰ま
りが生じる虞れがある。
更に上記管継手は、継手本体の枝管接続側の開
口内径と上記枝管の外径が大きく異なる場合、使
用不能となる。
この考案は上記問題点を解消するためになされ
たもので、１つの継手によつて、管径の異なる各
種の通気用枝管を簡単に手際よく接続配管でき、
しかも、その配管方向や配管位置を任意に設定乃
至調整できて汎用性が得られ、資材や時間の節減
およびコストダウンが図れると共に、通気用枝管
の自重による落ち込みがなく、該通気用枝管接続
部の強度上昇が図れて確実な気密性が得られる二
層管用通気管分岐継手を簡単な構成で提供するこ
とを目的とする。
In such a conventional drainage standpipe system, a ventilation standpipe must be provided separately from the drainage standpipe, and key points of the drainage standpipe are connected to this ventilation standpipe with a connecting ventilation pipe. Furthermore, the drainage horizontal branch pipe must be connected to the ventilation standpipe by a loop ventilation pipe, and the connection structure thereof is extremely complicated. Therefore, the piping construction work has become extremely complicated, requiring a considerable amount of time and effort, and is not only costly, but also requires a large piping space, making it difficult to construct and install it in a narrow space. It was difficult. In addition, the piping construction work described above requires the preparation of pipe materials, fittings, machine tools, tools, etc. according to the drainage load, etc., and a large space for preparation. (workplace, movement of workspace depending on building progress, etc.)
was necessary. Furthermore, when making changes after piping work is completed or renewing existing piping, it is necessary to change the size of the piping, switch and adjust the piping direction and connection height, etc., as well as adjust the work schedule and arrange for workers. There was a problem in that they had to be replaced, resulting in wasted time and money. In addition, although there are various types of conventional drainage special piping joints available, most of them are integrated into the pipe material and connected to the pipe, and one joint is not suitable for pipes with different diameters. It is not possible to connect the piping, or to adjust the piping direction and position, and for this reason, its use is limited to hotels and apartment complexes, and in order to deal with piping changes, it is necessary to The problem was that it required unnecessary time and money. There is also a pipe joint described in Utility Model Publication No. 59-4226, in which at least one end of the joint body made of elastic rubber is closed with an end wall, and concentric grooves are carved on the outer surface of the end wall, and Although this pipe joint has a structure in which a tapered tongue protrudes diagonally toward the axis on the inner peripheral surface of the main body, in the case of this pipe joint, it fits into a branch pipe that is integrated with the drainage pipe of different diameters. Since the joint body is attached by tight band tightening, the joint body may sag due to the weight of the horizontal pipe connected to the branch pipe by the pipe joint, and there is a risk that the sealing performance of the pipe connection may be impaired. Therefore, a ring dedicated to preventing the joint body from falling is required. Furthermore, the above-mentioned pipe joint can only be applied to a horizontal pipe connection of a drainage pipe with different diameters integrally having branch pipes, and cannot be applied to a straight pipe section. In addition, if the pipe diameters of the branch pipe and the horizontal pipe connected to it via the pipe joint are significantly different,
A large gap is formed between them, and there is a risk that solid matter in the drainage may adhere and accumulate in this gap, causing pipe clogging. Furthermore, the pipe joint cannot be used if the inner diameter of the opening on the branch pipe connection side of the joint body and the outer diameter of the branch pipe are significantly different. This idea was made to solve the above problems, and allows various ventilation branch pipes with different pipe diameters to be connected easily and efficiently using a single joint.
Moreover, the piping direction and position can be arbitrarily set or adjusted, providing versatility, saving materials and time, and reducing costs. It is an object of the present invention to provide a vent pipe branch joint for a double-layer pipe with a simple structure, which can increase the strength of the connection part and provide reliable airtightness.
この考案の二層管用通気管分岐継手は、枝管接
続用の分岐管に嵌込むべき継手内孔の先端閉塞壁
に上記各種異径の通気用枝管の各管径に対応する
複数の管径別円形切溝が設けられた継手本体と、
上記通気用枝管が接続される通気管の通気用分岐
口に外側から挿入可能で且つ該通気用分岐口の内
端周縁部に係止可能な割爪を有し、該割爪側が漸
次小径となる割テーパ状に形成された継手スリー
ブとを備えたものである。
The ventilation pipe branch joint for double-layer pipes of this invention has a plurality of pipes corresponding to the pipe diameters of the various ventilation branch pipes of different diameters on the end closing wall of the inner hole of the joint to be fitted into the branch pipe for connecting the branch pipes. A joint body with circular grooves according to diameter,
It has a split claw that can be inserted from the outside into the ventilation branch port of the ventilation pipe to which the ventilation branch pipe is connected, and that can be locked to the inner edge of the ventilation branch port, and the split claw side has a diameter that gradually becomes smaller. It is equipped with a joint sleeve formed in a split taper shape.
この考案の二層管用通気管分岐継手では、継手
本体の管径別円形切溝において、上記通気用分岐
口に接続すべき上記通気用枝管の管径に該当した
径の円形切溝を選択して切除開孔し、該開孔部に
上記分岐管を挿入し、かつ、上記継手本体内に継
手スリーブを嵌込み係合させ、該継手スリーブの
割爪側を上記通気用分岐口に外側から挿入したの
ち、その継手スリーブ内に上記分岐管を捻込むこ
とにより、上記継手スリーブの割テーパ部が径方
向外側にを拡開変形してその割爪が上記通気用分
岐口の内端周縁部に係止される。
In the vent pipe branch joint for double-layer pipes of this invention, a circular cut groove with a diameter corresponding to the pipe diameter of the vent branch pipe to be connected to the vent branch port is selected among the circular cut grooves for each pipe diameter of the joint body. Insert the branch pipe into the opening, fit and engage the joint sleeve into the joint body, and insert the split claw side of the joint sleeve into the ventilation branch port on the outside. By inserting the branch pipe into the joint sleeve, the split taper part of the joint sleeve expands outward in the radial direction, and the split claws are inserted into the inner end periphery of the ventilation branch port. It is locked in the section.
以下、この考案の実施例を図面に基づいて説明
する。
第１図はこの実施例における二層管構造の排水
立管システムを示し、１は排水経路を形成する内
管、２はその内管１との間で通気経路を形成する
外管（通気管）であり、この外管２の任意選定位
置に通気用枝管３が分岐管４を介して二層管用通
気管分岐継手５で接続配管される。
二層管用通気管分岐継手５は、第２図〜第４図
に示すように、継手本体６と継手スリーブ７とス
カート８との組合せからなつている。
継手本体６は袋ナツト状に一体形成されている
もので、その継手内孔９の内周面に刻設された内
ネジ部９ａと、上記継手内孔９の先端開口部を閉
じる先端閉塞壁１０とを有し、該先端閉塞壁１０
の外端面には複数の管径別円形切溝１１〜１３が
設けられている。
これらの管径別円形切溝１１〜１３は、上記外
管２に上記分岐管４を介して接続すべき各種異径
の通気用枝管３の各管径に対応した径に形成され
ている。尚、この実施例において、上記管径別円
形切溝１１〜１３は同心円状に形成されている。
上記継手スリーブ７は、上記継手内孔９と上記
分岐管４の外周面に捻込まれ、かつ、上記外管２
に穿設された通気用分岐口２ａに挿入接続される
もので、この通気用分岐口２ａに外側から挿入可
能で且つ該通気用分岐口２ａの内端周縁部に係止
可能な割爪１４を有している。
そして、上記継手スリーブ７には、その割爪１
４側が漸次小径となる割テーパ部１５が一体形成
されている。
ここで、上記割爪１４と上記割テーパ部１５
は、上記継手スリーブ７の一端側に切り込まれた
割溝７ａによつて形成され、これによつて、上記
継手スリーブ７は径方向外方に拡開変形可能にな
つている。
かかる継手スリーブ７において、割テーパ部１
５の大径側基部の外周面には外鍔１６が一体形成
され、この外鍔１６の外周面には、上記継手本体
６に内ネジ部９ａに捻込むための外ネジ部１６ａ
が刻設されている。
また、上記継手スリーブ７の内周面には、上記
分岐管４の外ネジ部４ａに捻込むための内ネジ部
７ｂが設けられている。
このような継手スリーブ７は、例えば、第６図
Ａ〜同図Ｃに示すように、それぞれの円筒部外径
が各種異径の通気用枝管３の各管径に対応したサ
イズ別の複数種類のものが用意される。
一方、上記スカート８は、上記継手本体６と略
同径に形成されて上記継手スリーブ７の割テーパ
部１５に嵌込まれる円環部８ａと、この円環部８
ａの一端に一体形成され径方向外側に突出して上
記外管２の外周面に密接される弯曲したサドル部
８ｂとからなつている。
次に、上記二層管用通気管分岐継手５で外管２
の任意個所に通気用枝管３を接続配管する場合に
ついて説明する。
まず、上記外管２に、接続すべき通気用枝管３
の管径に該当した径の通気用分岐口２ａを電気ド
リル等によつて開口すると共に、該通気用分岐口
２ａの開口径に対応した管径の分岐管４を選出す
る。
また、第６図Ａ〜Ｃに示すサイズ別の継手スリ
ーブ７の中から、上記通気用枝管３の管径に対応
した径の例えば第６図Ａに示す継手スリーブ７を
選定する。
その選定と共に、上記継手本体６の管径別円形
切溝１１〜１３の中から、上記第６図Ａに示す継
手スリーブ７の管径に該当した径の円形切溝１１
を選定して予め開孔しておく。
そして、上記継手スリーブ７の外鍔１６の外ネ
ジ部１６ａを上記継手本体６の内ネジ部７ｂに捻
込むと共に、上記継手スリーブ７の割テーパ部１
５にスカート８を遊嵌する。
次いで、上記継手スリーブ７の割テーパ部１５
を上記外管２の通気用分岐口２ａに外側から挿入
する。
その挿入後に、分岐管４の外ネジ部４ａを上記
継手スリーブ７の内ネジ部７ｂに捻込むと、該継
手スリーブ７の割テーパ部１５が径方向外側に拡
開変形する。
これにより、上記継手スリーブ７の割爪１４が
上記通気用分岐口２ａの内端周縁部に係止されて
上記継手本体６と継手スリーブ７とスカート８の
それぞれが上記外管２に気密状態に固定される。
この状態で、上記分岐管４にNC継手を介して
通気用枝管３が接続配管される。
尚、通気用枝管３の管径に対応して第６図Ｂの
継手スリーブ７を選定した場合には、継手本体６
の管径別円形切溝１１〜１３の中から上記継手ス
リーブ７の管径に該当した径の円形切溝１２を選
定して開孔し、また、第６図Ｃの継手スリーブ７
を選定した場合には、円形切溝１３を選定して開
孔し、その開孔部を利用して上記要領で第３図お
よび第４図に示すように、通気用分岐継手５を取
付セツトして通気用枝管３を接続配管する。
第８図および第９図には他の実施例を示す。こ
の実施例では、スカート８が環状のボルト形のも
のであつて、外管の表面に当接する外側フランジ
８ｂを有し、スカート８のネジ部の周囲に、袋ナ
ツト状の継手本体６の内ネジ部が螺着される構造
となつている。また、この実施例の継手スリーブ
７は、外鍔１６を省略され、継手スリーブ７の割
テーパ部１５の外周面が、スカート８内周面に圧
接されることにより、摩擦力で継手スリーブ７が
スカート８および継手本体６に係止される構成と
なつている。この場合も、前実施例と同様の要領
で、分岐管４が外管に対して装着される。
尚、当該二層管用通気管分岐継手５は、従来の
二管式排水システム等へも適用可能であることは
言うまでもない。
Hereinafter, embodiments of this invention will be described based on the drawings. Figure 1 shows a drainage standpipe system with a two-layer pipe structure in this embodiment, where 1 is an inner pipe that forms a drainage route, and 2 is an outer pipe (ventilation pipe) that forms a ventilation route between the inner pipe 1 and the inner pipe 1. ), and a ventilation branch pipe 3 is connected to an arbitrarily selected position of this outer pipe 2 via a branch pipe 4 with a ventilation pipe branch joint 5 for double-layer pipe. As shown in FIGS. 2 to 4, the vent pipe branch joint 5 for double-layer pipes is composed of a joint body 6, a joint sleeve 7, and a skirt 8. The joint body 6 is integrally formed in the shape of a cap nut, and includes an internal threaded portion 9a carved on the inner circumferential surface of the joint inner hole 9, and a distal end closing wall that closes the distal opening of the joint inner hole 9. 10, the distal end closing wall 10
A plurality of circular grooves 11 to 13 according to pipe diameter are provided on the outer end surface of the pipe. These pipe diameter-specific circular kerf grooves 11 to 13 are formed to have diameters corresponding to the pipe diameters of various ventilating branch pipes 3 of different diameters to be connected to the outer pipe 2 via the branch pipe 4. . In this embodiment, the circular kerf grooves 11 to 13 according to pipe diameter are formed concentrically. The joint sleeve 7 is screwed into the joint inner hole 9 and the outer peripheral surface of the branch pipe 4, and is inserted into the outer pipe 2.
A split claw 14 that is inserted into and connected to a ventilating branch port 2a drilled in the ventilating branch port 2a, can be inserted into the ventilating branch port 2a from the outside, and can be locked to the inner edge of the ventilating branch port 2a. have. The split claw 1 is attached to the joint sleeve 7.
A split taper portion 15 whose diameter gradually becomes smaller on the 4th side is integrally formed. Here, the split claw 14 and the split taper portion 15
is formed by a split groove 7a cut into one end side of the joint sleeve 7, thereby making the joint sleeve 7 expandable and deformable radially outward. In such a joint sleeve 7, the split taper portion 1
An outer flange 16 is integrally formed on the outer circumferential surface of the large-diameter side base of 5, and an outer threaded portion 16a for screwing into the inner threaded portion 9a of the joint body 6 is provided on the outer circumferential surface of this outer flange 16.
is engraved. Further, the inner circumferential surface of the joint sleeve 7 is provided with an inner threaded portion 7b for screwing into the outer threaded portion 4a of the branch pipe 4. For example, as shown in FIGS. 6A to 6C, such a joint sleeve 7 is provided in a plurality of sizes, each having an outer diameter of the cylindrical portion corresponding to each pipe diameter of the ventilation branch pipes 3 having various different diameters. A variety of items are available. On the other hand, the skirt 8 includes an annular portion 8a formed to have approximately the same diameter as the joint body 6 and fitted into the split taper portion 15 of the joint sleeve 7, and an annular portion 8a that is fitted into the split taper portion 15 of the joint sleeve 7
It consists of a curved saddle portion 8b that is integrally formed at one end of the outer tube a, projects radially outward, and is brought into close contact with the outer circumferential surface of the outer tube 2. Next, the outer pipe 2 is connected to the vent pipe branch joint 5 for double-layer pipes.
A case where the ventilation branch pipe 3 is connected to an arbitrary location will be explained. First, the ventilation branch pipe 3 to be connected to the outer pipe 2
A ventilating branch port 2a having a diameter corresponding to the pipe diameter is opened using an electric drill or the like, and a branch pipe 4 having a pipe diameter corresponding to the opening diameter of the ventilating branch port 2a is selected. Further, from among the joint sleeves 7 classified by size shown in FIGS. 6A to 6C, the joint sleeve 7 shown in FIG. 6A, for example, having a diameter corresponding to the pipe diameter of the ventilation branch pipe 3 is selected. Along with the selection, a circular kerf 11 with a diameter corresponding to the pipe diameter of the joint sleeve 7 shown in FIG.
Select and drill a hole in advance. Then, the external threaded portion 16a of the outer flange 16 of the joint sleeve 7 is screwed into the internal threaded portion 7b of the joint body 6, and the split taper portion 1 of the joint sleeve 7 is screwed into the internal threaded portion 7b of the joint body 6.
5. Loosely fit the skirt 8 into the hole. Next, the split tapered portion 15 of the joint sleeve 7
is inserted into the ventilation branch port 2a of the outer tube 2 from the outside. After the insertion, when the externally threaded portion 4a of the branch pipe 4 is screwed into the internally threaded portion 7b of the joint sleeve 7, the split taper portion 15 of the joint sleeve 7 expands outward in the radial direction. As a result, the split claws 14 of the joint sleeve 7 are locked to the inner peripheral edge of the ventilation branch port 2a, and the joint main body 6, joint sleeve 7, and skirt 8 are attached to the outer tube 2 in an airtight state. Fixed. In this state, the ventilation branch pipe 3 is connected to the branch pipe 4 via an NC joint. In addition, when the joint sleeve 7 shown in FIG. 6B is selected according to the pipe diameter of the ventilation branch pipe 3, the joint body 6
A circular kerf 12 with a diameter corresponding to the pipe diameter of the coupling sleeve 7 is selected and drilled from among the circular kerfs 11 to 13 according to the pipe diameter of FIG.
If this is selected, the circular cut groove 13 is selected and drilled, and the venting branch joint 5 is installed and set using the opening as shown in FIGS. 3 and 4 in the above manner. Then, the ventilation branch pipe 3 is connected and piped. Other embodiments are shown in FIGS. 8 and 9. In this embodiment, the skirt 8 is in the form of an annular bolt and has an outer flange 8b that abuts the surface of the outer tube. It has a structure in which the threaded part is screwed. In addition, in the joint sleeve 7 of this embodiment, the outer flange 16 is omitted, and the outer circumferential surface of the split taper portion 15 of the joint sleeve 7 is pressed against the inner circumferential surface of the skirt 8, so that the joint sleeve 7 is moved by frictional force. It is configured to be locked to the skirt 8 and the joint body 6. In this case as well, the branch pipe 4 is attached to the outer pipe in the same manner as in the previous embodiment. It goes without saying that the vent pipe branching joint 5 for two-layer pipes can also be applied to conventional two-pipe drainage systems.
以上、この考案によれば、１つの継手によつ
て、管径の異なる各種の通気用枝管を簡単に手際
よく接続配管でき、しかも、その配管方向や配管
位置を任意に設定乃至調整でき、この種の通気用
分岐継手としての汎用性が得られると共に、資材
や時間の節減およびコストダウンが図れ、配管作
業も大幅に軽減され、配管変更にも充分対処でき
る。
また、特に、通気用枝管の自重による落ち込み
がなく、該通気用枝管接続部の強度上昇が図れて
確実な気密性が得られる。
従つて、無駄な作業、付帯作業が殆どなく、施
工性が向上し、作業効率もよく、経済的である。
As described above, according to this invention, various ventilation branch pipes with different pipe diameters can be connected easily and efficiently using one joint, and the piping direction and position can be set or adjusted as desired. This type of ventilation branch joint provides versatility, saves materials and time, reduces costs, greatly reduces piping work, and can adequately handle piping changes. Moreover, in particular, the ventilation branch pipe does not fall down due to its own weight, and the strength of the connection portion of the ventilation branch pipe can be increased, and reliable airtightness can be obtained. Therefore, there is almost no wasted work or incidental work, and workability is improved, work efficiency is good, and it is economical.
第１図はこの考案の実施例に係る排水立管シス
テムの斜視図、第２図〜第４図はそれぞれ異なつ
た管径の通気用枝管接続状態を示す断面図、第５
図は継手本体の斜視図、第６図Ａ〜Ｃはサイズ別
の継手スリーブを示す斜視図、第７図はスカート
の斜視図、第８図は他の実施例に係る継手スリー
ブを使用しての通気用枝管接続状態を示す断面
図、第９図は第８図の継手スリーブの斜視図であ
る。
図において、２は通気管、２ａは通気用分岐
口、３は通気用枝管、４は分岐管、５は通気用分
岐継手、６は継手本体、７は継手スリーブ、９は
継手内孔、１０は先端閉塞壁、１１〜１３は管径
別円形切溝、１４は割爪、１５は割テーパ部であ
る。
Fig. 1 is a perspective view of a drainage standpipe system according to an embodiment of this invention, Figs.
The figure is a perspective view of the joint body, Figures 6A to C are perspective views showing different sizes of joint sleeves, Figure 7 is a perspective view of the skirt, and Figure 8 is a perspective view of the joint sleeve according to another embodiment. FIG. 9 is a cross-sectional view showing a state in which the ventilating branch pipe is connected, and FIG. 9 is a perspective view of the joint sleeve of FIG. 8. In the figure, 2 is a ventilation pipe, 2a is a branch port for ventilation, 3 is a branch pipe for ventilation, 4 is a branch pipe, 5 is a branch joint for ventilation, 6 is a joint body, 7 is a joint sleeve, 9 is a joint inner hole, 10 is a tip closing wall, 11 to 13 are circular cut grooves according to tube diameter, 14 is a split claw, and 15 is a split taper portion.
Claims (1)
ち、前記通気管２の通気用分岐口２ａに、枝管
接続用の分岐管４を介して、各種異径の通気用
枝管３を接続する二層管用通気管分岐継手にお
いて、前記通気用分岐口２ａに外側から挿入可
能で、かつ通気用分岐口２ａに係止可能な割爪
１４を有し、この割爪１４側が漸次小径となる
割テーパ状に形成された継手スリーブ７と、前
記通気用分岐口２ａに装着された前記継手スリ
ーブ７および通気用分岐口２ａを、外側から被
覆するように、前記通気管２に直接あるいはス
カート８を介して当接されるとともに、前記継
手スリーブ７のうち、前記通気用分岐口２ａか
ら遠い方の端部に面する閉塞壁１０を有し、こ
の閉塞壁１０には、前記分岐管４を前記継手ス
リーブ７内へ装着する際に、所要径の前記分岐
管４に対応する径を持つ継手内孔１９を穿設さ
れることが可能な継手本体６と、この継手本体
６の継手内孔１９を通して前記継手スリーブ７
の中へ挿入される前記分岐管４とを備え、前記
継手スリーブ７の外面と継手本体６の内面に
は、継手スリーブ７の外面が、継手本体６の内
面に直接あるいはスカート８を介して係止する
係止手段が設けられており、前記分岐管４を前
記通気管２に対して装着する際には、予め前記
継手本体６で被覆した所望内径の継手スリーブ
７のうち、割爪１４をすぼめてこれを通気用分
岐口２ａから通気管２内へ挿入し、次に、前記
継手本体６の閉塞壁１０に、前記分岐管４の所
要外径に対応する継手内孔９を穿設し、次い
で、前記継手内孔９を通して分岐管４を継手ス
リーブ７の内部の所定位置まで捻込んで係止さ
せることにより、前記割爪１４が拡開変形され
て、通気用分岐口２ａに係止し、前記割爪１４
と前記継手本体６とを、互いに協働して通気管
２を挟持することにより前記通気管２に対して
所定位置に固定された前記分岐管４に前記通気
用枝管３が接続されることを特徴とする二層管
用通気管分岐継手。 (2) 前記継手スリーブ７の内周面と前記分岐管４
の外周面には、相対応するネジ部７ｂ，４ｂが
形成されていることを特徴とする実用新案登録
請求の範囲第１項記載の二層管用通気管分岐継
手。 (3) 前記継手スリーブ７における割テーパ部の大
径側基端部の外周面に外鍔１６が一体に形成さ
れ、この外鍔１６の外周面に刻設された外側ネ
ジ部１６ａが、前記継手本体６の内側ネジ部９
ａに捻込まれることを特徴とする実用新案登録
請求の範囲第１項または第２項記載の二層管用
通気管分岐継手。 (4) 前記継手本体６は、通気管２の外周面にスカ
ート８を介して密着される気密連結構造のもの
であることを特徴とする実用新案登録請求の範
囲第１項から第３項いずれか１項記載の二層管
用通気管分岐継手。 (5) 前記継手スリーブ７は、通気管２の管径およ
び材質に応じて交換でき、通気用枝管３を同一
管材で分岐配管できるようにしたことを特徴と
する実用新案登録請求の範囲第１項から第４項
いずれか１項記載の二層管用通気管分岐継手。 (6) 前記継手本体６の閉塞壁１０の表面には、各
種異径の分岐管４の管径に対応する複数の管径
別円形切溝１１〜１３が、同心円状に形成され
ていることを特徴とする実用新案登録請求の範
囲第１項から第５項いずれか１項記載の二層管
用通気管分岐継手。 (7) 前記通気管２は、二層管による排水立管シス
テムの排水経路を形成する内管１との間で通気
経路を形成する外管からなり、この外管の任意
選定個所に穿設した通気用分岐口２ａを介し
て、前記通気経路に通気用枝管３を接続するこ
とを特徴とする実用新案登録請求の範囲第１項
記載の二層管用通気管分岐継手。[Claims for Utility Model Registration] (1) In a two-layer pipe having a ventilation pipe 2 on the outside of the inner pipe 1, a branch pipe 4 for connecting a branch pipe is connected to the ventilation branch port 2a of the ventilation pipe 2. In the vent pipe branch joint for a double-layer pipe that connects vent pipes 3 of various diameters, a split claw 14 that can be inserted into the vent branch port 2a from the outside and can be locked to the vent branch port 2a is provided. The joint sleeve 7 is formed in a split tapered shape with a diameter gradually decreasing on the split claw 14 side, and the joint sleeve 7 and the ventilation branch port 2a attached to the ventilation branch port 2a are covered from the outside. It has a closing wall 10 that abuts the ventilation pipe 2 directly or via a skirt 8 and faces the end of the joint sleeve 7 that is far from the ventilation branch port 2a. , a joint inner hole 19 having a diameter corresponding to the required diameter of the branch pipe 4 can be bored in the closing wall 10 when the branch pipe 4 is installed into the joint sleeve 7. The joint sleeve 7 is inserted through the joint body 6 and the joint inner hole 19 of the joint body 6.
The branch pipe 4 is inserted into the joint sleeve 7, and the outer surface of the joint sleeve 7 is engaged with the inner surface of the joint body 6 directly or through the skirt 8. A locking means is provided for locking the branch pipe 4 to the ventilation pipe 2, and when the branch pipe 4 is attached to the ventilation pipe 2, the split claw 14 is inserted into the joint sleeve 7 of the desired inner diameter covered with the joint main body 6 in advance. This is inserted into the ventilation pipe 2 through the ventilation branch port 2a, and then a joint inner hole 9 corresponding to the required outer diameter of the branch pipe 4 is bored in the closing wall 10 of the joint main body 6. Then, by screwing the branch pipe 4 through the joint inner hole 9 to a predetermined position inside the joint sleeve 7 and locking it therein, the split claw 14 is expanded and deformed and is locked in the ventilation branch port 2a. The split claw 14
and the joint body 6 cooperate with each other to sandwich the ventilation pipe 2, so that the ventilation branch pipe 3 is connected to the branch pipe 4 which is fixed at a predetermined position with respect to the ventilation pipe 2. A ventilation pipe branch joint for double-layer pipes featuring: (2) The inner peripheral surface of the joint sleeve 7 and the branch pipe 4
The vent pipe branch joint for a two-layer pipe according to claim 1, wherein corresponding threaded portions 7b and 4b are formed on the outer circumferential surface of the vent pipe branch joint for a double-layer pipe as claimed in claim 1. (3) An outer flange 16 is integrally formed on the outer circumferential surface of the large-diameter proximal end of the split taper portion of the joint sleeve 7, and an outer threaded portion 16a carved on the outer circumferential surface of the outer flange 16 Inner threaded part 9 of joint body 6
The vent pipe branch joint for a two-layer pipe according to claim 1 or 2 of the utility model registration claim, characterized in that it is screwed into a. (4) Any one of claims 1 to 3 of the claims registered as a utility model, characterized in that the joint main body 6 has an airtight connection structure in which the joint body 6 is tightly attached to the outer circumferential surface of the ventilation pipe 2 via a skirt 8. 2. The vent pipe branch joint for double-layered pipes according to item 1. (5) The above-mentioned joint sleeve 7 can be replaced depending on the pipe diameter and material of the ventilation pipe 2, and the ventilation branch pipe 3 can be branched using the same pipe material. The vent pipe branch joint for a double-layer pipe according to any one of Items 1 to 4. (6) On the surface of the closing wall 10 of the joint body 6, a plurality of circular cut grooves 11 to 13 corresponding to different pipe diameters corresponding to the pipe diameters of the branch pipes 4 of various diameters are formed concentrically. A vent pipe branch joint for a double-layer pipe according to any one of claims 1 to 5 of the utility model registration claim, characterized in that: (7) The ventilation pipe 2 consists of an outer pipe that forms a ventilation route with an inner pipe 1 that forms a drainage route for a drainage standpipe system using two-layer pipes, and is provided with holes in arbitrarily selected locations on the outer pipe. 2. The vent pipe branch joint for a double-layer pipe according to claim 1, wherein a vent branch pipe 3 is connected to the vent path through a vent branch port 2a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16079086U JPH054637Y2 (en) | 1986-10-22 | 1986-10-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16079086U JPH054637Y2 (en) | 1986-10-22 | 1986-10-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6366693U JPS6366693U (en) | 1988-05-06 |
| JPH054637Y2 true JPH054637Y2 (en) | 1993-02-04 |
Family
ID=31086502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16079086U Expired - Lifetime JPH054637Y2 (en) | 1986-10-22 | 1986-10-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH054637Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003240182A (en) * | 2002-02-05 | 2003-08-27 | Kishaku Kaku | Branch device installed in service water pipe |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019108933A (en) * | 2017-12-18 | 2019-07-04 | トヨタ自動車株式会社 | Breather device of vehicle |
-
1986
- 1986-10-22 JP JP16079086U patent/JPH054637Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003240182A (en) * | 2002-02-05 | 2003-08-27 | Kishaku Kaku | Branch device installed in service water pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6366693U (en) | 1988-05-06 |
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