JP4213114B2 - Connection structure of fireproof double-layer tube and flexible tube - Google Patents

Connection structure of fireproof double-layer tube and flexible tube Download PDF

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Publication number
JP4213114B2
JP4213114B2 JP2004354509A JP2004354509A JP4213114B2 JP 4213114 B2 JP4213114 B2 JP 4213114B2 JP 2004354509 A JP2004354509 A JP 2004354509A JP 2004354509 A JP2004354509 A JP 2004354509A JP 4213114 B2 JP4213114 B2 JP 4213114B2
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tube
pipe
layer
flexible
fireproof
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JP2006161960A (en
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義治 牧野
毅 岩越
一也 米田
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Inax Corp
A&A Material Corp
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A&A Material Corp
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Description

本発明は、耐火二層管と可撓性管の接続構造に関するものである。   The present invention relates to a connection structure between a fireproof double-layer tube and a flexible tube.

従来、耐火二層管の接続構造において、例えば特許文献１に開示されているような環状パッキン材で接続部の隙間を封鎖するようにしている。
特開２００３−２４７６７８号公報 2. Description of the Related Art Conventionally, in a fireproof double-layer tube connection structure, for example, an annular packing material as disclosed in Patent Document 1 is used to seal a gap between connection portions.
JP 2003-247678 A

しかし、配管業者により先に壁面側等から配管されている耐火二層管に施工誤差が生じているような場合に、便器等を所定位置に設置しようとすると、施工誤差を吸収させるためにゴムジョイント等の可撓性管で両者間を連結する必要があるが、そのような耐火二層管と可撓性管との接続部を封鎖するような目地材は何ら用意されておらず、耐火二層管と可撓性管の接続部の遮煙が良好に行われないという問題点があった。   However, if there is a construction error in a fireproof double-layer pipe previously piped from the wall surface etc. by the plumbing contractor, if you try to install a toilet etc. in a predetermined position, rubber will be used to absorb the construction error. It is necessary to connect the two with a flexible pipe such as a joint, but there is no joint material that seals the connection between such a fire-resistant double-layer pipe and the flexible pipe. There was a problem that smoke shielding at the connecting portion of the two-layer tube and the flexible tube was not performed well.

本発明は上記従来の問題点に鑑み案出したものであって、耐火二層管と可撓性管の接続部分を確実に塞ぐことができて、耐火二層管を通って煙が外へ出るのを良好に防ぐことのできる耐火二層管と可撓性管の接続構造を提供するものであり、その請求項１は、内管と該内管の外周に被覆された外管とで構成される耐火二層管と、可撓性管の接続構造であって、該可撓性管は、本体部と、該本体部に連続して設けられた内管接続部と、該内管接続部に連続して設けられた外管接続部とを備え、前記内管の外周に前記内管接続部がほぼ密着状に被さり、前記外管の外周に前記外管接続部がほぼ密着状に被さることである。   The present invention has been devised in view of the above-described conventional problems, and can reliably block the connection portion between the fireproof double-layer tube and the flexible tube, and the smoke can pass through the fireproof double-layer tube. The present invention provides a connection structure between a fireproof double-layered tube and a flexible tube that can be prevented well from coming out, and the claim 1 includes an inner tube and an outer tube coated on the outer periphery of the inner tube. A fire-resistant double-layer tube and a flexible tube connection structure, wherein the flexible tube includes a main body portion, an inner tube connection portion provided continuously to the main body portion, and the inner tube. An outer tube connecting portion provided continuously to the connecting portion, the inner tube connecting portion covering the outer periphery of the inner tube in a substantially close contact state, and the outer tube connecting portion being substantially in a close contact state with the outer periphery of the outer tube It is to put on.

また請求項２は、前記耐火二層管に接続された可撓性管の接続端部外周に、緊結バンドを締め付け、該緊結バンドで可撓性管の接続端部を耐火二層管に緊結したことである。   According to a second aspect of the present invention, a fastening band is fastened to the outer periphery of the connecting end of the flexible tube connected to the fireproof double-layer tube, and the connecting end of the flexible tube is fastened to the fireproof double-layered tube with the tightening band. It is that.

本発明は、耐火二層管と可撓性管の接続構造であって、可撓性管は、本体部と内管接続部と外管接続部とを備え、耐火二層管の内管の外周に内管接続部がほぼ密着状に被さり、耐火二層管の外管の外周に外管接続部がほぼ密着状に被さることにより、耐火二層管に対し可撓性管を接続することで、耐火二層管の内管と外管を可撓性管で覆うことができ、耐火二層管を通る煙が外へ出るのを良好に防ぐことができ、接続部にテープ等を巻くことなく容易に接続作業を行え、また可撓性管を介して便器等に接続して耐火二層管の施工誤差を良好に吸収させることができ、施工品質のばらつきを少なくすることができるものとなる。   The present invention is a connection structure of a fireproof double-layer tube and a flexible tube, and the flexible tube includes a main body portion, an inner tube connection portion, and an outer tube connection portion. The flexible pipe is connected to the fireproof double-layer pipe by covering the outer pipe with the inner pipe connection part almost in close contact and the outer pipe connection part covering the outer periphery of the outer pipe of the fireproof double layer pipe almost in close contact. So, the inner and outer tubes of the fireproof double-layer tube can be covered with a flexible tube, and the smoke passing through the fireproof double-layer tube can be well prevented from escaping, and a tape or the like is wound around the connection portion. It can be connected easily without any trouble, and it can be connected to a toilet etc. via a flexible tube to absorb construction errors of the fireproof double-layered tube well and to reduce variations in construction quality. It becomes.

また、耐火二層管に接続された可撓性管の接続端部外周に、緊結バンドを締め付け、緊結バンドで可撓性管の接続端部を耐火二層管に緊結したことにより、緊結バンドを締め付けて耐火二層管に可撓性管の接続端部を強固に密着状態にすることができ、耐火二層管を通る煙が外に出るのをより確実に防ぐことができる。   In addition, the fastening band is tightened on the outer periphery of the connection end of the flexible tube connected to the fireproof double-layer tube, and the connection end of the flexible tube is fastened to the fireproof double-layer tube with the tightening band. The connection end of the flexible tube can be firmly brought into close contact with the fireproof double-layer tube, and the smoke passing through the fireproof double-layer tube can be prevented more reliably.

以下、本発明の実施例を図面に基づいて説明する。
図１は、耐火二層管と便器間を、Ｌ状の可撓性管で繋いで、施工誤差を吸収しつつ連結した外観斜視図である。
また図２は、直管状の可撓性管により、耐火二層管と便器の排水管を接続した断面構成図である。 Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an external perspective view in which a refractory double-layer pipe and a toilet bowl are connected by an L-shaped flexible pipe and connected while absorbing construction errors.
Moreover, FIG. 2 is a cross-sectional block diagram which connected the fireproof two-layer pipe and the drainage pipe of the toilet bowl by the straight tubular flexible pipe.

このように、場面に応じて、Ｌ状の可撓性管３Ａ又は直管状の可撓性管３Ｂの何れかを用いて、耐火二層管２と便器１を連結することができるものである。
即ち、配管業者等により、壁面等からトイレ内に配管施工されている耐火二層管２に対し、トイレ内の所定位置に便器１を設置する際に、耐火二層管２の施工誤差を良好に可撓性管３Ａ又は３Ｂで吸収させて、施工品質のばらつきを少なくすることができるものである。 Thus, depending on the situation, the fireproof two-layer tube 2 and the toilet 1 can be connected using either the L-shaped flexible tube 3A or the straight tubular flexible tube 3B. .
That is, when the toilet bowl 1 is installed at a predetermined position in the toilet with respect to the fireproof double-layer pipe 2 installed in the toilet from a wall surface or the like by a pipe supplier or the like, the construction error of the fireproof double-layer pipe 2 is good. Can be absorbed by the flexible tube 3A or 3B to reduce variation in construction quality.

耐火二層管２は、塩化ビニールからなる内管２ａの外周に隙間Ｓを形成して、モルタル等の不燃性の材質からなる外管２ｂが被覆された二層管で構成されている。
なお、可撓性管３Ａ又は３Ｂは、ゴム等で形成されており、耐火二層管２と便器１の位置ずれを吸収して、現場で良好に両者間を接続することができるものである。 The fireproof two-layer pipe 2 is formed of a two-layer pipe in which a gap S is formed on the outer periphery of an inner pipe 2a made of vinyl chloride and an outer pipe 2b made of a nonflammable material such as mortar is covered.
The flexible tube 3A or 3B is made of rubber or the like, and can absorb the misalignment between the fireproof two-layer tube 2 and the toilet 1 and can be connected between them well on site. .

可撓性管３Ａ，３Ｂの本体部４の、耐火二層管２側の接続端部５は、耐火二層管２の内管２ａの外周にほぼ密着状に被さる内管接続部６と、耐火二層管２の外管２ｂの外周にほぼ密着状に被さる外管接続部７を備え、接続端部５を構成する内管接続部６及び外管接続部７は、本体部４から一体状に形成されており、内管接続部６の内周は、本体部４の内周よりも大径に形成され、外管接続部７の内周は、更に大径に形成されている。   The connection end 5 on the fireproof double-layer tube 2 side of the main body portion 4 of the flexible tubes 3A and 3B has an inner tube connection portion 6 that covers the outer periphery of the inner tube 2a of the fireproof double-layer tube 2 in a close contact state, The outer tube connecting part 7 is provided on the outer periphery of the outer tube 2b of the fire-resistant double-layered tube 2 so as to cover the outer tube 2b in close contact with each other. The inner circumference of the inner pipe connecting portion 6 is formed to have a larger diameter than the inner circumference of the main body portion 4, and the inner circumference of the outer pipe connecting portion 7 is further formed to have a larger diameter.

また、本体部４から内管接続部６の内周に至る部分には、軸方向に対し直角に当接段部４ａが形成されており、この当接段部４ａが耐火二層管２の内管２ａの先端に当接されるように構成されている。   Further, a contact step portion 4a is formed at a right angle to the axial direction in a portion from the main body portion 4 to the inner periphery of the inner pipe connection portion 6, and this contact step portion 4a is formed in the fireproof double-layer pipe 2. It is comprised so that it may contact | abut to the front-end | tip of the inner pipe | tube 2a.

このように、内管接続部６と外管接続部７が予め一体形成されている可撓性管３Ａ又は３Ｂを用いて、耐火二層管２の内管２ａの外周に内管接続部６を、外管２ｂの外周に外管接続部７を押し込んで覆設させて、容易に可撓性管の接続端部５を耐火二層管２の端部に接続することができ、その状態では、内管接続部６の内周が内管２ａの外周にほぼ密着状となり、また外管接続部７の内周が外管２ｂの外周にほぼ密着状となる。   Thus, the inner tube connecting portion 6 and the outer tube connecting portion 7 are integrally formed in advance with the flexible tube 3A or 3B on the outer periphery of the inner tube 2a of the refractory double-layer tube 2. The outer tube connecting portion 7 is pushed into the outer periphery of the outer tube 2b so as to cover the outer tube 2b, and the connecting end portion 5 of the flexible tube can be easily connected to the end portion of the fireproof double-layer tube 2. Then, the inner circumference of the inner pipe connecting portion 6 is substantially in close contact with the outer circumference of the inner pipe 2a, and the inner circumference of the outer pipe connecting portion 7 is substantially in close contact with the outer circumference of the outer pipe 2b.

また、可撓性管３Ａ，３Ｂの本体部４の他端側には、便器１の排水管１ａの外周に密着状に嵌め込まれる排水管接続部８が一体形成されており、排水管接続部８を排水管１ａに差し込み状に容易に接続することができるものである。   In addition, a drain pipe connection portion 8 that is closely fitted to the outer periphery of the drain pipe 1a of the toilet 1 is integrally formed on the other end side of the main body 4 of the flexible pipes 3A and 3B. 8 can be easily connected to the drain pipe 1a in the form of a plug.

なお、この排水管接続部８の外周には、バンド溝８ａが凹み状に形成されており、このバンド溝８ａ内に緊結バンド１１を外側から締め付けて、強固に排水管１ａの外周に排水管接続部８を密着固定させることができるものである。
また同様に、内管接続部６の外周には、凹み状にバンド溝６ａが形成され、また外管接続部７の外周にも凹み状にバンド溝７ａが形成されており、それぞれバンド溝６ａ内には外側から緊結バンド９を締め付け、バンド溝７ａ内には緊結バンド１０を締め付けて、緊結バンド９を締め付けることにより、内管接続部６を内管２ａの外周に強固に密着させることができ、また緊結バンド１０を締め付けることにより、外管接続部７を外管２ｂの外周に強固に密着させることができるものであり、このように緊結バンド９，１０を用いることで、可撓性管３Ａ，３Ｂが外れることがなく、密着状態が強力なものとなって、耐火二層管２の隙間Ｓ内を通る煙が接続目地部Ｍから外へ出てくるのを確実に防ぐことができ、耐火性が向上したものとなる。 A band groove 8a is formed in a concave shape on the outer periphery of the drain pipe connecting portion 8, and the tightening band 11 is tightened from the outside in the band groove 8a to firmly tighten the drain pipe on the outer periphery of the drain pipe 1a. The connecting portion 8 can be fixed tightly.
Similarly, a band groove 6a is formed in a concave shape on the outer periphery of the inner pipe connection portion 6, and a band groove 7a is also formed in a concave shape on the outer periphery of the outer pipe connection portion 7, respectively. By tightening the tightening band 9 from the outside, tightening the tightening band 10 in the band groove 7a, and tightening the tightening band 9, the inner tube connection portion 6 can be firmly adhered to the outer periphery of the inner tube 2a. In addition, by tightening the tightening band 10, the outer tube connecting portion 7 can be firmly adhered to the outer periphery of the outer tube 2b. Thus, the use of the tightening bands 9 and 10 allows flexibility. The pipes 3A and 3B are not detached, and the close contact state is strong, and it is possible to reliably prevent the smoke passing through the gap S of the refractory double-layer pipe 2 from coming out of the connection joint M. And improved fire resistance

便器の排水管と耐火二層管をＬ状の可撓性管で連結した状態の要部斜視構成図である。It is a principal part perspective block diagram of the state which connected the drainage pipe of the toilet bowl and the fireproof two-layer pipe with the L-shaped flexible pipe. 直管状の可撓性管で耐火二層管と便器の排水管を連結した状態の縦断面構成図である。It is a longitudinal cross-section block diagram of the state which connected the fireproof double layer pipe and the drainage pipe of the toilet bowl with the straight tubular flexible pipe.

符号の説明Explanation of symbols

１ 便器
１ａ 排水管
２ 耐火二層管
２ａ 内管
２ｂ 外管
３Ａ，３Ｂ 可撓性管
４ 本体部
５ 接続端部
６ 内管接続部
６ａ バンド溝
７ 外管接続部
７ａ バンド溝
８ 排水管接続部
８ａ バンド溝
９，１０，１１ 緊結バンド
Ｓ 隙間 DESCRIPTION OF SYMBOLS 1 Toilet 1a Drain pipe 2 Fireproof double-layer pipe 2a Inner pipe 2b Outer pipe 3A, 3B Flexible pipe 4 Main body part 5 Connection end part 6 Inner pipe connection part 6a Band groove 7 Outer pipe connection part 7a Band groove 8 Drain pipe connection Part 8a Band groove 9, 10, 11 Tightening band S Gap

Claims (2)

内管と該内管の外周に被覆された外管とで構成される耐火二層管と、可撓性管の接続構造であって、該可撓性管は、本体部と、該本体部に連続して設けられた内管接続部と、該内管接続部に連続して設けられた外管接続部とを備え、前記内管の外周に前記内管接続部がほぼ密着状に被さり、前記外管の外周に前記外管接続部がほぼ密着状に被さることを特徴とする耐火二層管と可撓性管の接続構造。   A connection structure of a fireproof double-layered tube composed of an inner tube and an outer tube coated on the outer periphery of the inner tube, and a flexible tube, the flexible tube comprising a main body portion and the main body portion An inner pipe connection portion provided continuously to the inner pipe connection portion and an outer pipe connection portion provided continuously to the inner pipe connection portion. A connection structure between a fireproof double-layered tube and a flexible tube, wherein the outer tube connecting portion covers the outer periphery of the outer tube in an almost tight manner. 前記耐火二層管に接続された可撓性管の接続端部外周に、緊結バンドを締め付け、該緊結バンドで可撓性管の接続端部を耐火二層管に緊結したことを特徴とする請求項１に記載の耐火二層管と可撓性管の接続構造。
A fastening band is fastened to the outer periphery of the connection end portion of the flexible tube connected to the fireproof double-layer tube, and the connection end portion of the flexible tube is fastened to the fireproof double-layer tube with the binding band. The connection structure of the fireproof two-layer pipe and flexible pipe according to claim 1.
JP2004354509A 2004-12-07 2004-12-07 Connection structure of fireproof double-layer tube and flexible tube Expired - Fee Related JP4213114B2 (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
JP2004354509A JP4213114B2 (en) 2004-12-07 2004-12-07 Connection structure of fireproof double-layer tube and flexible tube

Publications (2)

Publication Number Publication Date
JP2006161960A JP2006161960A (en) 2006-06-22
JP4213114B2 true JP4213114B2 (en) 2009-01-21

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