JPH06346991A - Duct connecting device - Google Patents
Duct connecting deviceInfo
- Publication number
- JPH06346991A JPH06346991A JP17199793A JP17199793A JPH06346991A JP H06346991 A JPH06346991 A JP H06346991A JP 17199793 A JP17199793 A JP 17199793A JP 17199793 A JP17199793 A JP 17199793A JP H06346991 A JPH06346991 A JP H06346991A
- Authority
- JP
- Japan
- Prior art keywords
- spiral
- pipe body
- pipe end
- duct
- annular
- 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
- Duct Arrangements (AREA)
- Joints With Sleeves (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、送風装置、熱源装
置、空調装置等に用いられるスパイラルダクトを配管す
るための接続装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting device for piping spiral ducts used in blowers, heat source devices, air conditioners and the like.
【0002】[0002]
【従来の技術】従来、この種のスパイラルダクトを配管
する際は、スパイラルダクトを接続用、分岐用等の連結
管体に嵌合して、該嵌合部分を鉄板ビスによって螺着
し、その上より合成樹脂製テープを巻回して嵌合部分を
固定すると共に、気密性を保持するように接続する装置
が知られている。2. Description of the Related Art Conventionally, when piping a spiral duct of this type, the spiral duct is fitted to a connecting pipe body for connection, branching, etc., and the fitting portion is screwed by an iron plate screw, There is known a device in which a synthetic resin tape is wound from above to fix a fitting portion, and is connected so as to maintain airtightness.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、従来技
術のものは、スパイラルダクトと連結管体との嵌合部分
を上記した如く鉄板ビスで螺着するものであるから、そ
の取付け作業に際しては、予めビス孔を穿設し、これに
ビスを螺着して接続するが、このビスの取付けには嵌合
部分の全周に亘って複数箇所に取付けなければならず、
その上、各種配線、配管が複雑に張巡らされている天井
部での組立て作業となことから極めて重労働であるばか
りでなく、使用中にスパイラルダクト内を流れる気体の
振動でビスが浮き上がり脱落する虞があると共に、気密
性も悪いものであって、これを防止するために従来はこ
のビス上より合成樹脂製テープを巻回しなければならな
いので、さらにその取付け作業が煩瑣となって作業能率
が悪いものであった。そこで、この発明は、上記した従
来技術の問題点に鑑み、これを解決したものであって、
スパイラルダクトの連結作業が極めて簡単であって、迅
速に配管することができると共に、妄りに接続部分が分
離することなく、堅牢に取付けられ気密性に優れたダク
ト接続装置を得ることを目的としたものである。However, in the prior art, the fitting portion of the spiral duct and the connecting pipe body is screwed by the iron plate screw as described above, and therefore, before the mounting work, Screw holes are drilled, and screws are screwed into the screw holes to connect them, but this screw must be attached at multiple points along the entire circumference of the fitting part.
Besides, it is an extremely heavy labor as it is an assembly work on the ceiling where various wiring and piping are stretched around intricately, and the screw rises and falls off due to the vibration of the gas flowing in the spiral duct during use. There is also a possibility that it is also airtight, and in order to prevent this, it has conventionally been necessary to wind a synthetic resin tape over this screw, so the installation work becomes more complicated and work efficiency is further improved. It was bad. Therefore, the present invention has been made in consideration of the above-mentioned problems of the conventional technology,
The purpose of the present invention is to obtain a duct connecting device that is extremely easy to connect spiral ducts and that can be quickly piped, and that is firmly attached and has excellent airtightness without accidentally separating the connecting parts. It is a thing.
【0004】[0004]
【課題を解決するための手段】これを達成する手段とし
て、この発明は、スパイラルダクトの管端部周縁に間隔
を置いて係止片を突設し、該管端部を夫々接続管体の両
側嵌合部に嵌合して、両嵌合部間に介在した弾性パッキ
ング材を押圧するようにして接続管体に突設した環状当
接部に当接し、両管端部の係止片を連結金具で夫々係止
連結すると共に、その上面に弾性パッキング材を介在し
た締付けバンドを巻付け、該締付けバンドの環状膨出部
で接続管体の環状当接部を挟着するように両スパイラル
ダクトの管端部を圧接緊締して、両スパイラルダクトを
密封連結するものである。As a means for achieving this, the present invention has a locking piece projecting from the periphery of the pipe end portion of a spiral duct with a gap, and the pipe end portions of the connecting pipe bodies are respectively formed. Fitting on both side fitting parts, the elastic packing material interposed between both fitting parts is pressed against the annular abutting part projecting on the connecting pipe body, and locking pieces at both pipe end parts Are connected to each other by connecting metal fittings, and a tightening band having an elastic packing material interposed is wound around the upper surface of the connecting metal fitting so that the annular contact portion of the connecting pipe body is sandwiched by the annular bulging portion of the tightening band. Both ends of the spiral duct are hermetically connected by crimping and tightening the ends of the spiral duct.
【0005】[0005]
【実施例】この発明の構成を図面に示す実施例について
以下詳細に説明する。1はスパイラルダクトであって、
従来と同様に帯状鋼鈑を膨出シーム2でスパイラル状に
巻回連結して形成し、該スパイラルダクト1の先端には
端縁より2条の切割りを入れ、該切割り部分を外面に向
かって直角に切起して係止片3を突設する。そしてこの
係止片3は円周方向に間隔を置いて3個または4個の複
数個設ける。4は接続管体であって、中央部分に断面コ
状に膨出する環状当接部5を突設すると共に、その基端
に夫々台形状の浅い凹溝6を形成して両側に嵌合部7が
設けられている。8は連結金具であって、中央部分をコ
状に屈折形成した嵌入部9を設け、その両側に夫々係止
片10が形成され、該係止片10に上記スパイラルダク
ト1の係止片3を挿入する係止孔11が穿設されてい
る。12は締付けバンドであって、帯状金属板を略半円
形状に湾曲して帯状部材13を形成し、蝶番14の両端
に夫々該帯状部材13、13を連結して開閉可能の欠円
形状に構成されている。そして、帯状部材13は中央に
断面弧状の環状膨出部15を形成し、その両側に夫々締
付け平坦部16、16を設け、該帯状部材13の両先端
部に夫々小孔18が穿設されている締付け片17を立設
し、さらに、該締付けバンド12の内面側には厚手の弾
性パッキング材19が貼着されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention shown in the drawings will be described in detail below. 1 is a spiral duct,
As in the conventional case, a strip-shaped steel plate is spirally wound and connected by a bulging seam 2 and two cuts are made from the edge at the tip of the spiral duct 1, and the cut portion is formed on the outer surface. Cut and bulge at a right angle to project the locking piece 3. A plurality of the lock pieces 3 or 4 are provided at intervals in the circumferential direction. Reference numeral 4 denotes a connecting pipe, which has a ring-shaped abutting portion 5 protruding in a U-shaped cross section at the central portion thereof, and trapezoidal shallow concave grooves 6 formed at the base ends thereof to be fitted on both sides. A section 7 is provided. Reference numeral 8 denotes a connecting fitting, which is provided with a fitting portion 9 whose center portion is bent in a U-shape, and locking pieces 10 are formed on both sides thereof, and the locking piece 10 has locking pieces 3 of the spiral duct 1. A locking hole 11 for inserting is inserted. Reference numeral 12 denotes a tightening band, which is formed by bending a strip-shaped metal plate into a substantially semicircular shape to form a strip-shaped member 13, and connecting the strip-shaped members 13 and 13 to both ends of a hinge 14 to form an open-closed oval shape. It is configured. The belt-shaped member 13 has an annular bulging portion 15 having an arcuate cross-section at the center, and clamping flat portions 16 and 16 are provided on both sides thereof, and small holes 18 are formed at both ends of the belt-shaped member 13. A tightening piece 17 is provided upright, and a thick elastic packing material 19 is attached to the inner surface side of the tightening band 12.
【0006】このように構成されているので、スパイラ
ルダクト1を接続するには、接続管体4の両側の嵌合部
7に夫々スパイラルダクト1を挿入嵌合する。その際、
両側の嵌合部7の凹溝6間には中央の環状当接部5を跨
いで弾性パッキング材20を巻き付け、これを押圧する
ようにして嵌入し、各スパイラルダクト1の先端を弾性
パッキング材20を介して接続管体4中央の環状当接部
5に当接する。ついで、各スパイラルダクト1の管端部
に突設している係止片3を、連結金具8の係止片10に
穿設されている係止孔11に夫々挿入すると共に、連結
金具8の中央部分に屈折形成した嵌入部9を、弾性パッ
キング材20を押圧するようにして接続管体4の中央の
環状当接部5に嵌入し、この状態で係止孔11に夫々挿
入した係止片3を折返すように折曲げ係止して、両スパ
イラルダクト1を該連結金具8で分離しないように連結
する。そして、連結された両スパイラルダクト1と接続
管体4との嵌合部分の外周面に、予め蝶番14部分より
両帯状部材13、13を開いた状態とした締付けバンド
8を被せるように巻付けた後、締付けバンド8の両先端
部に設けた締付け片17の小孔18にボルト21を挿通
してナット22を螺入する。これによって該締付けバン
ド8はその径が縮小されるため、その内面側に貼着した
弾性パッキング材19は、スパイラルダクト1の先端お
よび接続管体4の環状当接部5上を締付けるように強圧
密着緊締し、スパイラルダクト1と接続管体4との間隙
を緊密に閉止して気密性を保持するように確実に挟着固
定する。その際、締付けバンド8の中央の環状膨出部1
5は圧縮された弾性パッキング材19を介して接続管体
4中央の環状当接部5上に圧接挟着すると共に、連結金
具8の左右の移動も防止するので、スパイラルダクト1
の移動も確実に防止され、外力を受けても妄りに分離す
ることなく堅牢に連結することができるものである。With this structure, in order to connect the spiral ducts 1, the spiral ducts 1 are inserted and fitted into the fitting portions 7 on both sides of the connecting pipe body 4, respectively. that time,
The elastic packing material 20 is wound between the recessed grooves 6 of the fitting portions 7 on both sides so as to straddle the central annular contact portion 5, and the elastic packing material 20 is inserted by being pressed, and the tip of each spiral duct 1 is fitted. It contacts the annular contact part 5 at the center of the connecting pipe body 4 via 20. Next, the locking pieces 3 projecting from the pipe ends of the spiral ducts 1 are inserted into the locking holes 11 formed in the locking pieces 10 of the connecting fittings 8, and the connecting fittings 8 The fitting portions 9 that are bent and formed in the central portion are fitted into the central annular contact portion 5 of the connecting tube body 4 so as to press the elastic packing material 20, and in this state, they are inserted into the locking holes 11 respectively. The piece 3 is bent and locked so as to be folded back, and both spiral ducts 1 are connected by the connecting metal fitting 8 so as not to be separated. Then, the outer peripheral surface of the fitting portion between the connected spiral ducts 1 and the connecting pipe body 4 is wound so as to cover the fastening band 8 in which both the band-shaped members 13 and 13 are opened from the hinge 14 portion in advance. After that, the bolts 21 are inserted into the small holes 18 of the tightening pieces 17 provided at both ends of the tightening band 8, and the nuts 22 are screwed in. As a result, the diameter of the tightening band 8 is reduced, so that the elastic packing material 19 attached to the inner surface of the tightening band 8 is strongly pressed so as to tighten the tip of the spiral duct 1 and the annular contact portion 5 of the connecting pipe body 4. Tighten tightly and tightly close the gap between the spiral duct 1 and the connecting pipe body 4, and securely clamp and fix so as to maintain airtightness. At that time, the annular bulging portion 1 at the center of the tightening band 8
5 is pressed and sandwiched on the annular contact portion 5 at the center of the connecting pipe body 4 via the compressed elastic packing material 19, and the lateral movement of the connecting fitting 8 is prevented, so that the spiral duct 1
Is reliably prevented from moving, and can be firmly connected without being delusionally separated even if an external force is applied.
【0007】[0007]
【発明の効果】以上、実施例について詳述したように、
この発明はスパイラルダクトに接続管体を挿入嵌合し、
スパイラルダクトの係止片を連結金具の係止孔に挿入し
て折返して係止することで連結したので、その上より締
付けバンドで緊締する作業の際、両スパイラルダクトは
妄りに分離することなく連結状態を保持しているので、
その上面に巻き付ける締付けバンドの取付け作業が極め
て容易となると共に、締付けバンドをスパイラルダクト
の管端部と接続管体との連結部分上に確実に巻き付け密
着緊締することができる。さらにその作業中、スパイラ
ルダクトの管端部と接続管体の嵌合部間に押圧状態に介
在されている弾性パッキング材の移動を確実に防止する
ことができものであり、これにより該締付けバンドの弾
性パッキング材で嵌合部分を強圧密着させ気密性を高め
ることができると共に、締付けバンドの環状膨出部が接
続管体の環状当接部に嵌合してスパイラルダクトが確実
に連結されて移動分離することがない。これにより従来
技術の如くビス孔の穿設、ビスによるダクトの連結、合
成樹脂製テープの巻回等の煩瑣な取付け作業に比べて迅
速、簡単に組立て連結できる上、使用中の気体の流れに
よる振動を受けても妄りに分解することなく気密性に優
れた堅牢なダクト接続装置を安価に提供することができ
るものである。As described above in detail for the embodiments,
This invention inserts and fits a connecting pipe into a spiral duct,
The spiral duct locking pieces are connected by inserting them into the locking holes of the connecting metal fittings and folding them back to lock them.Therefore, when tightening with a tightening band, both spiral ducts do not indiscriminately separate. Since the connection state is maintained,
The work of attaching the tightening band to be wound around the upper surface thereof becomes extremely easy, and the tightening band can be securely wound around the connecting portion between the pipe end portion of the spiral duct and the connecting pipe body to be tightly tightened. Further, during the work, it is possible to reliably prevent the movement of the elastic packing material interposed in the pressed state between the pipe end portion of the spiral duct and the fitting portion of the connecting pipe body. With the elastic packing material, the fitting part can be strongly pressure-adhered to enhance the airtightness, and the annular bulging part of the tightening band fits into the annular abutting part of the connecting pipe body to securely connect the spiral duct. There is no movement separation. This allows quick and easy assembly and connection as compared with the complicated installation work such as drilling a screw hole, connecting a duct with a screw, and winding a synthetic resin tape as in the prior art, and also depends on the gas flow during use. It is possible to inexpensively provide a robust duct connecting device that is excellent in airtightness without being distorted even if it receives vibration.
【図1】この発明のダクト接続装置の一部切欠せるダク
ト接続前の縦断側面図FIG. 1 is a vertical cross-sectional side view of a duct connecting device of the present invention before a duct is partially cut away
【図2】この発明のダクト接続装置の一部切欠せるダク
ト接続時の側面図FIG. 2 is a side view of the duct connecting device according to the present invention when the duct is partially cut away and connected.
【図3】この発明の連結金具の斜視図FIG. 3 is a perspective view of a connecting fitting of the present invention.
【図4】この発明の締付けバンドの側面図FIG. 4 is a side view of the tightening band of the present invention.
1 スパイラルダクト 2 膨出シーム 3 係止片 4 接続管体 5 環状当接部 6 凹溝 7 嵌合部 8 連結金具 9 嵌入部 10 係止片 11 係止孔 12 締付けバンド 13 帯状部材 14 蝶番 15 環状膨出部 16 締付け平坦部 17 締付け片 18 小孔 19 弾性パッキング材 20 弾性パッキング材 21 ボルト 22 ナット DESCRIPTION OF SYMBOLS 1 spiral duct 2 bulging seam 3 locking piece 4 connecting tube body 5 annular contact part 6 concave groove 7 fitting part 8 connecting metal fitting 9 fitting part 10 locking piece 11 locking hole 12 tightening band 13 band member 14 hinge 15 Annular bulging portion 16 Tightening flat portion 17 Tightening piece 18 Small hole 19 Elastic packing material 20 Elastic packing material 21 Bolt 22 Nut
Claims (1)
置いて係止片を突設し、該管端部を夫々接続管体の両側
嵌合部に嵌合して、両嵌合部間に介在した弾性パッキン
グ材を押圧するようにして接続管体に突設した環状当接
部に当接し、両管端部の係止片を連結金具で夫々係止連
結すると共に、その上面に弾性パッキング材を介在した
締付けバンドを巻付け、該締付けバンドの環状膨出部で
接続管体の環状当接部を挟着するように両スパイラルダ
クトの管端部を圧接緊締して、両スパイラルダクトを密
封連結することを特徴とするダクト接続装置。1. A spiral duct is provided with projecting locking pieces at a peripheral edge of a pipe end portion, and the pipe end portions are fitted to both side fitting portions of a connecting pipe body, respectively, and the two fitting portions are fitted to each other. The elastic packing material intervening in the abutment is pressed against the annular abutting part protruding from the connecting pipe body, and the locking pieces at both pipe ends are locked and connected by the connecting metal fittings, respectively, and the upper surface is elastically connected. Wrap a tightening band with a packing material interposed between them, press the tube ends of both spiral ducts so as to clamp the annular contact portion of the connecting pipe body with the annular bulging portion of the tightening band, and then press both spiral ducts. A duct connecting device, characterized in that the ducts are hermetically connected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17199793A JPH0786395B2 (en) | 1993-06-04 | 1993-06-04 | Duct connection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17199793A JPH0786395B2 (en) | 1993-06-04 | 1993-06-04 | Duct connection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06346991A true JPH06346991A (en) | 1994-12-20 |
JPH0786395B2 JPH0786395B2 (en) | 1995-09-20 |
Family
ID=15933616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17199793A Expired - Lifetime JPH0786395B2 (en) | 1993-06-04 | 1993-06-04 | Duct connection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0786395B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0926072A (en) * | 1995-07-11 | 1997-01-28 | Mitsubishi Electric Corp | Pipe body hold device |
DE19728655A1 (en) * | 1997-07-04 | 1999-02-04 | Meinig Metu System | Air-duct pipe end butt joint for two pipe ends |
EP1284386A3 (en) * | 2001-08-14 | 2003-11-19 | Geberit Technik Ag | Connection between two ventilation pipe parts |
JP2006170199A (en) * | 2004-12-14 | 2006-06-29 | Borgwarner Inc | Turbo supercharger-catalytic converter assembly body |
JP2007198640A (en) * | 2006-01-25 | 2007-08-09 | Tigers Polymer Corp | Joint for heat insulating duct |
-
1993
- 1993-06-04 JP JP17199793A patent/JPH0786395B2/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0926072A (en) * | 1995-07-11 | 1997-01-28 | Mitsubishi Electric Corp | Pipe body hold device |
DE19728655A1 (en) * | 1997-07-04 | 1999-02-04 | Meinig Metu System | Air-duct pipe end butt joint for two pipe ends |
EP1284386A3 (en) * | 2001-08-14 | 2003-11-19 | Geberit Technik Ag | Connection between two ventilation pipe parts |
JP2006170199A (en) * | 2004-12-14 | 2006-06-29 | Borgwarner Inc | Turbo supercharger-catalytic converter assembly body |
JP4694954B2 (en) * | 2004-12-14 | 2011-06-08 | ボーグワーナー・インコーポレーテッド | Turbocharger-catalytic converter assembly |
JP2007198640A (en) * | 2006-01-25 | 2007-08-09 | Tigers Polymer Corp | Joint for heat insulating duct |
Also Published As
Publication number | Publication date |
---|---|
JPH0786395B2 (en) | 1995-09-20 |
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