JP2012107723A - Pipe connecting device - Google Patents

Pipe connecting device Download PDF

Info

Publication number
JP2012107723A
JP2012107723A JP2010258173A JP2010258173A JP2012107723A JP 2012107723 A JP2012107723 A JP 2012107723A JP 2010258173 A JP2010258173 A JP 2010258173A JP 2010258173 A JP2010258173 A JP 2010258173A JP 2012107723 A JP2012107723 A JP 2012107723A
Authority
JP
Japan
Prior art keywords
pipe
cylindrical body
connection
water stop
drilling machine
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
Application number
JP2010258173A
Other languages
Japanese (ja)
Other versions
JP5714307B2 (en
Inventor
Hiroyuki Machida
浩之 町田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cosmo Koki Co Ltd
Original Assignee
Cosmo Koki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cosmo Koki Co Ltd filed Critical Cosmo Koki Co Ltd
Priority to JP2010258173A priority Critical patent/JP5714307B2/en
Publication of JP2012107723A publication Critical patent/JP2012107723A/en
Application granted granted Critical
Publication of JP5714307B2 publication Critical patent/JP5714307B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

PROBLEM TO BE SOLVED: To provide a pipe connecting device in which an engagement part is engaged with a branch pipe without causing any faults by entry of debris, and which can connect the branch pipe to a connecting part in water-tight manner.SOLUTION: A tubular body 17 is provided with an annular pressing part 17a which presses a water shut off member 23 toward the inside of the connecting part 15 when being interposed between a boring machine 16 and the engagement part 22. The connecting part 15 is provided with an annular taper part 15g which forms an inclination which gradually reduces its diameter from an outside end 15c of the connecting part 15 toward the inside thereof. The tubular body 17 is disposed on axis of a pipe substantially coaxial with the connecting part 15 by the water shut off member 23 pressed by a pressing part 17a being farther pressed toward the axis of the pipe of the connecting part 15 by the taper part 15g.

Description

本発明は、流体管を被覆する被覆部及び筐体を備えるとともに、筐体は、被覆部に接続され流体管に形成される分岐口に連通する連通部と、分岐口を穿設する穿孔機若しくは分岐管に水密に接続可能な接続部と、連通部と接続部とを連通可能な開閉弁部と、から構成されており、接続部の内周面に設けられ、分岐管の接続時に分岐管と係合する係合部と、穿孔機の接続部への接続時に穿孔機と係合部との間に介設され、先端周面が接続部の係合部よりも開閉弁部側の筐体に当接することで係合部への切り粉の進入を阻止する筒状体と、筒状体が穿孔機と係合部との間に介設されることで弾性変形し、接続部と筒状体とに水密に当接する環状の止水部材と、を備えた管接続装置に関する。   The present invention includes a covering section and a casing that cover a fluid pipe, and the casing is connected to the covering section and communicates with a branch port formed in the fluid pipe, and a punching machine that drills the branch port Alternatively, it is composed of a connection part that can be connected to the branch pipe in a watertight manner, and an on-off valve part that can communicate the communication part with the connection part, and is provided on the inner peripheral surface of the connection part and branches when the branch pipe is connected. An engagement portion that engages with the pipe, and is interposed between the perforator and the engagement portion when connected to the connection portion of the perforator, and the tip peripheral surface is closer to the on-off valve portion side than the engagement portion of the connection portion A cylindrical body that prevents entry of chips into the engaging portion by contacting the housing, and the cylindrical body is elastically deformed by being interposed between the drilling machine and the engaging portion. And an annular water stop member that is in watertight contact with the tubular body.

従来の管接続装置は、分岐管の接続時に分岐管と係合する係合部が内周面に設けられた接続部を備え、この接続部に穿孔機を接続して流体管に分岐口を穿孔している(例えば、特許文献1参照)。   A conventional pipe connection device includes a connection portion provided on an inner peripheral surface for engaging with a branch pipe when the branch pipe is connected, and a perforator is connected to the connection portion to provide a branch port for the fluid pipe. Perforated (see, for example, Patent Document 1).

特許第4162063号公報(第5頁、第5図)Japanese Patent No. 4162063 (page 5, FIG. 5)

しかしながら、特許文献1にあっては、穿孔機により流体管に分岐口を穿孔する際に発生する切り粉が、接続部に設けられた分岐管と係合する係合部に進入してしまうため、係合部に残留した切り粉が分岐管との間に介在し、水密性を維持できないという問題がある。   However, in Patent Document 1, chips generated when a branching hole is drilled in a fluid pipe by a punching machine enters an engaging part that engages with a branching pipe provided in a connecting part. There is a problem that the chips remaining in the engaging portion are interposed between the branch pipe and the watertightness cannot be maintained.

本発明は、このような問題点に着目してなされたもので、係合部が切り粉の進入により不具合を生じることなく分岐管に係合し、分岐管を接続部に水密に接続できる管接続装置を提供することを目的とする。   The present invention has been made paying attention to such a problem, and the engaging portion engages with the branch pipe without causing trouble due to the ingress of chips, and the pipe that can connect the branch pipe to the connecting portion in a watertight manner. An object is to provide a connection device.

前記課題を解決するために、本発明の管接続装置は、
流体管を被覆する被覆部及び筐体を備えるとともに、該筐体は、前記被覆部に接続され前記流体管に形成される分岐口に連通する連通部と、前記分岐口を穿設する穿孔機若しくは分岐管に水密に接続可能な接続部と、前記連通部と前記接続部とを連通可能な開閉弁部と、から構成されており、前記接続部の内周面に設けられ、前記分岐管の接続時に該分岐管と係合する係合部と、前記穿孔機の前記接続部への接続時に前記穿孔機と前記係合部との間に介設され、先端周面が前記接続部の前記係合部よりも前記開閉弁部側の前記筐体に当接することで前記係合部への切り粉の進入を阻止する筒状体と、該筒状体が前記穿孔機と前記係合部との間に介設されることで弾性変形し、前記接続部と前記筒状体とに水密に当接する環状の止水部材と、を備えた管接続装置であって、
前記筒状体は、前記穿孔機と前記係合部との間に介設される際に前記止水部材を前記接続部の内方に向けて押圧する環状の押圧部を備え、前記接続部は、該接続部の外側端から内方に向けて、漸次縮径する傾斜をなす環状のテーパー部を備え、前記筒状体は、前記押圧部によって押圧された止水部材がテーパー部によって更に前記接続部の管軸に向けて押圧されることで、前記接続部と略同一の管軸上に配置されることを特徴としている。
この特徴によれば、穿孔機と接続部との間に筒状体を介設させることで押圧部によって押圧された止水部材が筒状体を更に接続部の管軸に向けて押圧することにより、筒状体が接続部と自動的に略同一管軸上に配置されるため、筒状体の先端周面を接続部の係合部よりも開閉弁部側に位置合わせの必要なく当接させて穿孔機で分岐口を穿設する際の切り粉が係合部へ進入することを阻止できるとともに、分岐口の穿設後、係合部が切り粉の進入により不具合を生じることなく分岐管に係合し、分岐管を接続部に水密性を維持した状態で接続できる。
In order to solve the above-mentioned problem, the pipe connection device of the present invention includes:
A casing having a covering portion and a casing covering the fluid pipe, the casing being connected to the covering portion and communicating with a branch port formed in the fluid pipe, and a punching machine for punching the branch port Or it is comprised from the connection part which can be connected watertightly to a branch pipe, and the on-off valve part which can connect the said communication part and the said connection part, It is provided in the internal peripheral surface of the said connection part, The said branch pipe An engaging portion that engages with the branch pipe when connected to the connecting portion, and is interposed between the punching device and the engaging portion when connected to the connecting portion of the drilling machine, and a tip peripheral surface of the connecting portion A cylindrical body that prevents the chips from entering the engagement portion by contacting the casing on the opening / closing valve portion side of the engagement portion, and the cylindrical body is engaged with the punching machine. An annular water stop member that is elastically deformed by being interposed between the connecting portion and the tubular body and that is in watertight contact with the connecting portion and the cylindrical body, An example was a tube connecting device,
The cylindrical body includes an annular pressing portion that presses the water stop member toward the inside of the connection portion when interposed between the drilling machine and the engagement portion, and the connection portion Is provided with an annular tapered portion having an inclination that gradually decreases in diameter from the outer end of the connecting portion inward, and the cylindrical body further includes a water-stop member pressed by the pressing portion by the tapered portion. By being pressed toward the tube axis of the connection portion, the tube is disposed on the tube axis substantially the same as the connection portion.
According to this feature, the water blocking member pressed by the pressing portion presses the cylindrical body further toward the tube axis of the connecting portion by interposing the cylindrical body between the drilling machine and the connecting portion. Therefore, the cylindrical body is automatically arranged on the substantially same tube axis as the connection portion, so that the tip peripheral surface of the cylindrical body does not need to be positioned closer to the on-off valve portion side than the engagement portion of the connection portion. It is possible to prevent chips from entering the engaging part when making a branching port with a drilling machine, and after the branching port is made, the engaging part does not cause a problem due to the entry of the cutting powder. Engage with the branch pipe and connect the branch pipe to the connecting portion while maintaining watertightness.

本発明の管接続装置は、
前記筒状体の前記筐体に当接する先端周面に、密着部材を備えていることを特徴としている。
この特徴によれば、筒状体を接続部の開閉弁部側に向けて押し込むだけで、先端周面に備えた密着部材により係合部よりも開閉弁部側で密着し、切り粉の進入を簡単に防ぐことができる。
The pipe connecting device of the present invention is
An adhesion member is provided on a peripheral surface of the tip of the cylindrical body that contacts the casing.
According to this feature, just by pushing the cylindrical body toward the opening / closing valve portion side of the connecting portion, the contact member provided on the peripheral surface of the tip closely contacts the opening / closing valve portion side with respect to the engaging portion, and the chips enter. Can be easily prevented.

本発明の管接続装置は、
前記接続部の外側端に、前記穿孔機の付属部品である止水蓋が取り付けられ、該止水蓋に、前記接続部の外部に連通可能な連通路が形成されていることを特徴としている。
この特徴によれば、穿孔機で分岐口を穿設する際に、止水蓋に形成された連通路を開放することで、発生する切り粉を連通路を介して接続部の外部に排出できる。
The pipe connecting device of the present invention is
A water stop lid that is an accessory of the drilling machine is attached to the outer end of the connection portion, and a communication path that can communicate with the outside of the connection portion is formed in the water stop lid. .
According to this feature, when the branch port is drilled by the punching machine, the generated chips can be discharged to the outside of the connecting portion through the communication path by opening the communication path formed in the water blocking lid. .

本発明の管接続装置は、
前記穿孔機は、前記止水蓋と一体に構成されるとともに、該止水蓋が前記接続部に外方から接続することで前記穿孔機の振動を防止する振動防止部材を複数備えていることを特徴としている。
この特徴によれば、止水蓋を接続部の外側端に取り付けることで同時に穿孔機の取り付けを行うことができるとともに、振動防止部材によって穿孔機の振動が防止されるため、分岐口を穿設する際に分岐口がずれて穿設されてしまうことがなく、且つ接続部内を傷付けてしまう虞を解消できる。
The pipe connecting device of the present invention is
The drilling machine is configured integrally with the water stop lid, and includes a plurality of vibration preventing members that prevent vibration of the drilling machine by connecting the water stop lid from the outside to the connection portion. It is characterized by.
According to this feature, the perforator can be attached at the same time by attaching a water stop lid to the outer end of the connection portion, and the vibration preventing member prevents vibration of the perforator, so a branch port is provided. In doing so, it is possible to eliminate the possibility that the diverging port is not formed by being displaced and the inside of the connecting portion is damaged.

本発明の管接続装置は、
前記止水部材は、前記テーパー部によって前記接続部の管軸方向に押圧される軟質部と、該軟質部よりも硬質に構成され該押圧部によって前記流体管に向けて押圧される硬質部と、から構成されていることを特徴としている。
この特徴によれば、筒状体が穿孔機と接続部との間に介設される際に、接続部と筒状体との間で弾性変形する軟質部を硬質部によって接続部の外側に膨出しないよう押さえ付けることができるので、より確実に接続部と筒状体との間を水密に止水することができるばかりか、硬質部が比較的弾性変形せずに形状維持したまま押圧部に押圧されるとともに、軟質部が接続部と筒状体との間で柔軟に弾性変形できるので、筒状体が接続部と略同一の管軸上に配置される精度を高めることができる。
The pipe connecting device of the present invention is
The water stop member includes a soft portion pressed in the tube axis direction of the connection portion by the tapered portion, a hard portion configured to be harder than the soft portion, and pressed toward the fluid pipe by the press portion, It is characterized by comprising.
According to this feature, when the cylindrical body is interposed between the drilling machine and the connecting portion, the soft portion that elastically deforms between the connecting portion and the cylindrical body is placed outside the connecting portion by the hard portion. Since it can be pressed so as not to bulge, not only can the water tightly stop between the connecting part and the cylindrical body, but also the hard part can be pressed without being relatively elastically deformed. Since the soft part can be elastically deformed flexibly between the connection part and the cylindrical body while being pressed by the part, it is possible to increase the accuracy with which the cylindrical body is disposed on the substantially same tube axis as the connection part. .

実施例1における管接続装置を示す側断面図である。It is a sectional side view which shows the pipe connection apparatus in Example 1. FIG. 流体管を穿孔している状態を示す側断面図である。It is a sectional side view which shows the state which has pierced the fluid pipe | tube. 接続部から筒状体を取り外す状態を示す側断面図である。It is a sectional side view which shows the state which removes a cylindrical body from a connection part. (a)は、筒状体の一部側断面図であり、(b)は、筒状体の背面図である。(A) is a partial sectional side view of a cylindrical body, (b) is a rear view of a cylindrical body. 分岐管を接続部に接続した状態を示す側断面図である。It is a sectional side view which shows the state which connected the branch pipe to the connection part. 実施例2における管接続装置を示す側断面図である。It is a sectional side view which shows the pipe connection apparatus in Example 2. 図6における穿孔機のA−A断面図である。It is AA sectional drawing of the drilling machine in FIG. 実施例3における管接続装置を示す側断面図である。It is a sectional side view which shows the pipe connection apparatus in Example 3.

本発明に係る管接続装置を実施するための形態を実施例に基づいて以下に説明する。   EMBODIMENT OF THE INVENTION The form for implementing the pipe | tube connection apparatus which concerns on this invention is demonstrated below based on an Example.

実施例1に係る管接続装置につき、図1から図5を参照して説明する。以下、図1から図3、図5の紙面左側を管接続装置の前方(正面)側として説明する。図1に示すように、地中に埋設されたダクタイル鋳鉄製等の既設の流体管1の外周面に、管接続装置10が水密性を保持した状態で、且つ流体管1との所定限度量の相対移動を許容した状態で装着されている。管接続装置10は、径方向に2分割可能な筐体12と、別体の被覆部11とからなる。管接続装置10は、2分割に限らず3分割など複数に分割可能であってよい。また、本実施例では流体管内の流体は上水であるが、流体管1の内部を流れる流体は必ずしも上水に限らず、例えば工業用水であってもよいし、また気体や気液混合状態の流体が流れる流体管であっても構わない。   The pipe connection device according to the first embodiment will be described with reference to FIGS. 1 to 3 and 5 will be described as the front (front) side of the pipe connecting device. As shown in FIG. 1, a predetermined limit amount with the fluid pipe 1 in a state where the pipe connecting device 10 maintains water tightness on the outer peripheral surface of the existing fluid pipe 1 made of ductile cast iron or the like buried in the ground. It is mounted in a state that allows relative movement. The pipe connection device 10 includes a casing 12 that can be divided into two in the radial direction and a separate covering portion 11. The pipe connection device 10 is not limited to two divisions, and may be divided into a plurality of divisions such as three divisions. In the present embodiment, the fluid in the fluid pipe is clean water, but the fluid flowing in the fluid pipe 1 is not necessarily limited to clean water, and may be, for example, industrial water, or a gas or gas-liquid mixed state. It may be a fluid pipe through which the fluid flows.

筐体12は、管軸に対して略直角外方を向き流体管1側から順に、連通部13、開閉弁部14、そして接続部15が連続して一体に設けられて成る。尚、連通部13、開閉弁部14、そして接続部15のうち少なくとも1つが、他と別体に設けられていても構わない。連通部13及び接続部15は、開閉弁部14により連通可能であって、流体管1に形成される分岐口1aの軸方向に拡がる内空構造を有している。連通部13は、被覆部11側に向けて開口した開口縁13aを有しており、この開口縁13aの開口領域が開閉弁部14側の開放領域に連続している。連通部13、開閉弁部14、そして接続部15を構成する筐体12と、被覆部11とは、互いの対向面間に配置された止水部材31,32を介し、ボルト・ナット30により流体管1に互いに組みつけられている。   The casing 12 is formed by integrally connecting a communication portion 13, an on-off valve portion 14, and a connection portion 15 in order from the fluid tube 1 side, facing outward at substantially right angles to the tube axis. Note that at least one of the communication unit 13, the on-off valve unit 14, and the connection unit 15 may be provided separately from the others. The communication part 13 and the connection part 15 can communicate with each other by the on-off valve part 14 and have an internal structure that extends in the axial direction of the branch port 1 a formed in the fluid pipe 1. The communication part 13 has an opening edge 13a that opens toward the covering part 11 side, and the opening area of the opening edge 13a is continuous with the opening area on the on-off valve part 14 side. The casing 12 constituting the communication part 13, the on-off valve part 14, and the connection part 15, and the covering part 11 are connected to each other by bolts and nuts 30 through water-stop members 31 and 32 disposed between the opposing surfaces. The fluid pipes 1 are assembled with each other.

このように、連通部13の開口縁13aと流体管1に後述のように形成される分岐口の開口縁とを容易に位置合わせした状態で、連通部13を構成する筐体12と被覆部11とを組付けるだけで流体管に接続できる。   As described above, the casing 12 and the covering portion that constitute the communication portion 13 in a state where the opening edge 13a of the communication portion 13 and the opening edge of the branch port formed in the fluid pipe 1 as described later are easily aligned. 11 can be connected to the fluid pipe simply by assembling.

開閉弁部14は、弁軸14bの回動操作で上下する弁体14aによって、連通部13と接続部15との間を開閉可能に成っている。   The on-off valve portion 14 can be opened and closed between the communication portion 13 and the connection portion 15 by a valve body 14a that moves up and down by a turning operation of the valve shaft 14b.

接続部15の内周面には、この接続部15に接続される分岐管40(図5参照)と係合する本発明の係合部としてのロックリング22が設置される環状溝15aが形成されている。また、接続部15の内周面である外側端15cの内径側には、外側端15cから接続部15の内方である流体管1に向けて、漸次縮径する傾斜をなす本発明におけるテーパー部としてのテーパー面15gが形成されている。更に、テーパー面15gの内方には、連続して接続部15の管軸と略平行をなす平行面15hが、環状溝15aよりも接続部15の後部まで形成されている。また、接続部15の後端部である外側端15cは、接続部15の管軸に略直交する直交面に形成されるとともに、外側端15cには、接続部15の外径方向にむけて膨出したフランジ20が形成されている。   On the inner peripheral surface of the connecting portion 15, an annular groove 15a is formed in which the lock ring 22 as the engaging portion of the present invention that engages with the branch pipe 40 (see FIG. 5) connected to the connecting portion 15 is installed. Has been. Further, the taper according to the present invention is formed on the inner diameter side of the outer end 15c that is the inner peripheral surface of the connection portion 15 so as to gradually decrease in diameter toward the fluid pipe 1 that is the inner side of the connection portion 15 from the outer end 15c. A tapered surface 15g as a part is formed. Furthermore, a parallel surface 15h that is substantially parallel to the tube axis of the connection portion 15 is formed inwardly of the tapered surface 15g to the rear portion of the connection portion 15 rather than the annular groove 15a. Further, the outer end 15c, which is the rear end portion of the connection portion 15, is formed on an orthogonal surface substantially orthogonal to the tube axis of the connection portion 15, and the outer end 15c is directed toward the outer diameter direction of the connection portion 15. A bulging flange 20 is formed.

次に、管接続装置10を用いた流体管1への分岐口1aの穿設について説明する。   Next, drilling of the branch port 1a in the fluid pipe 1 using the pipe connecting device 10 will be described.

図1及び図2に示すように、先ず分岐口1aの穿設時の構造について説明すると、接続部15内部に、略筒形状の筒状体17が嵌挿されている。図4(a)及び図4(b)に示すように、筒状体17は、ダクタイル鋳鉄等の金属材から成る本体筒の先端周面に、ゴム等の弾性材から成る密着部材26が設けられ、後端に外径方向に突出した鍔部17aが形成されている。この鍔部17aが本発明における押圧部を構成する。鍔部17aの正面における内径側には、後述する止水パッキン23の後端部が挿通配置される凹部17fが形成されている。この凹部17fは、止水パッキン23の後端部が接続部の外側に膨出しないよう保持するための内壁17gを鍔部17aの外径側に備えている。また、筒状体17の前記した本体筒は、先端周面側の縮径筒部17dと、鍔部17a側の拡径筒部17eと、から成り、拡径筒部17eは、後述の分岐管よりも若干小径の外径を備える。更に、凹部17fの内底面及び凹部17fよりも外径側である端面17hは、筒状体17の管軸に略直交する直交面に形成されている。   As shown in FIGS. 1 and 2, first, the structure when the branch port 1 a is drilled will be described. A substantially cylindrical tubular body 17 is inserted into the connection portion 15. As shown in FIGS. 4 (a) and 4 (b), the cylindrical body 17 is provided with a close contact member 26 made of an elastic material such as rubber on the front peripheral surface of a body cylinder made of a metal material such as ductile cast iron. In addition, a flange portion 17a protruding in the outer diameter direction is formed at the rear end. This collar part 17a comprises the press part in this invention. On the inner diameter side of the front surface of the flange portion 17a, a recess portion 17f into which a rear end portion of a water stop packing 23 described later is inserted is formed. The recessed portion 17f includes an inner wall 17g on the outer diameter side of the flange portion 17a for holding the rear end portion of the water blocking packing 23 so as not to bulge outside the connecting portion. The above-described main body cylinder of the cylindrical body 17 includes a reduced diameter cylindrical portion 17d on the distal end peripheral surface side and an enlarged diameter cylindrical portion 17e on the flange portion 17a side. It has an outer diameter slightly smaller than that of the tube. Further, the inner bottom surface of the concave portion 17 f and the end surface 17 h that is on the outer diameter side of the concave portion 17 f are formed on orthogonal surfaces that are substantially orthogonal to the tube axis of the cylindrical body 17.

尚、筒状体17には、接続部15に嵌設される途上において、本発明における止水部材としての環状の止水パッキン23が挿通される。筒状体17は、この止水パッキン23が拡径筒部17eの外周面に当接するとともに、止水パッキン23の後端部が鍔部17aの正面に形成された凹部17f内に挿入配置した状態で接続部15に嵌設することで、鍔部17aによって止水パッキン23を接続部15の内方である流体管1に向けて押圧する。そして、鍔部17aによって押圧された止水パッキン23は、テーパー面15gによって接続部15の管軸に向けて押圧されて弾性変形し、接続部15と筒状体17との間を水密に止水する。弾性変形した止水パッキン23の一部は、筒状体17を接続部15内に嵌設させていくことによって平行面15hと筒状体17との間で更に弾性変形する。   In the course of being fitted into the connecting portion 15, an annular water-stop packing 23 as a water-stop member in the present invention is inserted into the cylindrical body 17. The cylindrical body 17 is disposed such that the water-stopping packing 23 abuts on the outer peripheral surface of the diameter-expanded cylindrical portion 17e, and the rear end portion of the water-stopping packing 23 is inserted into a recess 17f formed in front of the flange portion 17a. By fitting in the connection part 15 in a state, the water stop packing 23 is pressed toward the fluid pipe 1 which is the inner side of the connection part 15 by the flange part 17a. The water-stop packing 23 pressed by the flange portion 17a is pressed toward the tube axis of the connection portion 15 by the tapered surface 15g and elastically deforms, and the connection portion 15 and the cylindrical body 17 are sealed in a watertight manner. Water. A part of the water-stop packing 23 that is elastically deformed is further elastically deformed between the parallel surface 15 h and the cylindrical body 17 by fitting the cylindrical body 17 into the connecting portion 15.

このとき、筒状体17には弾性変形した止水パッキン23から外周面の全周にかけて均一な力が作用することで、筒状体17が接続部15と略同一の管軸上に配置される。つまり、筒状体17を接続部15に嵌設することで、筒状体17の接続部15に対する位置合わせが自動的になされるようになっている。より詳しくは、接続部15の管軸に対し直交面である外側端15cに、筒状体17の管軸に対し直交面である端面17hがメタルタッチで当接し、且つこの筒状体17に弾性変形した止水パッキン23から全周にかけて均一な力が作用することで、この筒状体17が接続部15と略同一の管軸上に配置された状態を達成し、筒状体17の接続部15への嵌設が完了する。   At this time, the cylindrical body 17 is disposed on substantially the same tube axis as the connecting portion 15 by applying a uniform force to the cylindrical body 17 from the elastically deformed water-stopping packing 23 to the entire circumference of the outer peripheral surface. The In other words, the cylindrical body 17 is automatically fitted to the connection portion 15 by fitting the cylindrical body 17 to the connection portion 15. More specifically, an end surface 17h which is a plane orthogonal to the tube axis of the cylindrical body 17 is in contact with the outer end 15c which is a plane orthogonal to the tube axis of the connecting portion 15 by metal touch, and By applying a uniform force from the elastically deformed water-stopping packing 23 to the entire circumference, the cylindrical body 17 is in a state of being arranged on the tube axis substantially the same as the connecting portion 15. The fitting to the connection part 15 is completed.

尚、止水パッキン23がテーパー面15gによって押圧されることで止水パッキン23の後端部には接続部の外側に向けて弾性変形する力がはたらくが、止水パッキン23の後端部が内壁17gに当接することで止水パッキン23の後端部の弾性変形が阻まれるように成っている。このため、弾性変形した止水パッキン23の後端部が外側端15cと端面17hとの間に介在することなく、外側端15cと端面17hとを当接させることができる。   In addition, although the water stop packing 23 is pressed by the taper surface 15g, the rear end portion of the water stop packing 23 is subjected to elastic deformation toward the outside of the connection portion, but the rear end portion of the water stop packing 23 is By abutting against the inner wall 17g, elastic deformation of the rear end portion of the water blocking packing 23 is prevented. For this reason, the outer end 15c and the end surface 17h can be brought into contact with each other without the rear end portion of the water-stopping packing 23 that is elastically deformed interposed between the outer end 15c and the end surface 17h.

接続部15に嵌挿された筒状体17は、密着部材26が接続部15の開閉弁部14寄りの縮径内面15fに当接するとともに、鍔部17aが接続部15の外側端15cに当接することで、係合部の一部としての環状溝15aと、後述する穿孔機16との間に介設されている。   The cylindrical body 17 fitted in the connecting portion 15 has the contact member 26 abuts on the reduced diameter inner surface 15f of the connecting portion 15 near the on-off valve portion 14 and the flange portion 17a contacts the outer end 15c of the connecting portion 15. By being in contact with each other, an annular groove 15a as a part of the engaging portion is interposed between a punching machine 16 described later.

図1に示すように、筒状体17は、このように分岐管との接続に用いるロックリング22、止水パッキン23が接続部15の内周面に予め組み付けられた状態で、接続部15に嵌挿されている。また、前記した形状の筒状体17によれば、縮径筒部17dにより接続部15内を嵌挿し易く、且つ拡径筒部17eの外周面を止水パッキン23に水密に当接させ易い。   As shown in FIG. 1, the cylindrical body 17 includes the connection portion 15 in a state in which the lock ring 22 and the water stop packing 23 used for connection to the branch pipe are assembled in advance on the inner peripheral surface of the connection portion 15. Is inserted. Further, according to the cylindrical body 17 having the above-described shape, the inside of the connecting portion 15 is easily inserted by the reduced diameter cylindrical portion 17d, and the outer peripheral surface of the enlarged diameter cylindrical portion 17e is easily brought into watertight contact with the water blocking packing 23. .

また、筒状体17の鍔部17aの背面側には、穿孔機16と一体となって構成された、穿孔機16の付属部品である止水蓋としてのボーラーヘッド18が取り付けられている。ボーラーヘッド18は、筒状体17の鍔部17a及び接続部15のフランジ20に対し、長ボルト・ナット25により固定され、鍔部17aの背面に配置されたパッキン27を押圧保持することで接続部15内を水密に維持している。   In addition, a borer head 18 as a water stop lid, which is an accessory part of the drilling machine 16, is integrated with the drilling machine 16 on the back side of the flange portion 17 a of the cylindrical body 17. The borer head 18 is connected to the flange portion 17a of the cylindrical body 17 and the flange 20 of the connection portion 15 by a long bolt / nut 25, and is connected by pressing and holding a packing 27 disposed on the back surface of the flange portion 17a. The inside of the part 15 is kept watertight.

ボーラーヘッド18には、その外径方向に延びボーラーヘッド18の内外を連通する連通路18aが形成され、更に連通路18aを開閉する排出バルブ19が設けられている。   The borer head 18 is formed with a communication passage 18a that extends in the outer diameter direction and communicates the inside and outside of the borer head 18, and is further provided with a discharge valve 19 that opens and closes the communication passage 18a.

図2に示すように、続いて分岐口1aの穿設工程について説明すると、開閉弁部14の弁体14aを開放し、また排出バルブ19を開放し、穿孔機16を構成する略円筒状のカッタ21を流体管1側に送出して穿孔を行なう。この穿孔機16と環状溝15aとの間に、環状溝15aへの切り粉の進入を阻止する筒状体17が介設されていることで、流体管1から流出する流体に伴い管壁から発生する切り粉が、等環状溝15aに向けて進入することなく、筒状体17内部を流通し、更に連通路18aを介して接続部15外部に排出できる。この穿孔により管軸に直交方向に略円形の分岐口1aが穿設される。また、上述したように、筒状体17が接続部15と略同一の管軸上に配置されることで、筒状体17が、接続部15の内周面及びロックリング22から全周に亘り偏り無く均一に離間することに成るため、穿孔機16による流体管1の穿孔の際にも、筒状体17が接続部15の内周面若しくはロックリング22に接触する虞を回避できる。   As shown in FIG. 2, the step of drilling the branch port 1 a will be described. The valve body 14 a of the on-off valve portion 14 is opened, the discharge valve 19 is opened, and the substantially cylindrical shape constituting the drilling machine 16 is formed. The cutter 21 is sent out to the fluid pipe 1 side to perform perforation. Since the cylindrical body 17 that prevents entry of chips into the annular groove 15a is interposed between the drilling machine 16 and the annular groove 15a, the tubular body 17 is separated from the tube wall along with the fluid flowing out from the fluid pipe 1. The generated chips can flow through the cylindrical body 17 without entering the annular groove 15a, and can be discharged to the outside of the connecting portion 15 through the communication path 18a. By this perforation, a substantially circular branch port 1a is formed in a direction orthogonal to the tube axis. Further, as described above, the cylindrical body 17 is arranged on the substantially same tube axis as that of the connecting portion 15, so that the cylindrical body 17 can be moved all around from the inner peripheral surface of the connecting portion 15 and the lock ring 22. Since the fluid pipes 1 are uniformly spaced apart from each other without any deviation, it is possible to avoid the possibility that the cylindrical body 17 contacts the inner peripheral surface of the connecting portion 15 or the lock ring 22 even when the fluid pipe 1 is perforated by the perforator 16.

また、筒状体17を接続部15の開閉弁部14側に向けて押し込むだけで、先端周面に備えた密着部材26により係合部としての環状溝15aよりも開閉弁部14側の縮径内面15fに密着し、切り粉の進入を簡単に防ぐことができる。尚、筒状体は、必ずしも先端周面に密着部材26を備えていなくてもよく、単一の筒部材のみから成っていてもよい。更に尚、筒状体は、必ずしも水密性を有するものに限られず、例えば切り粉の進入を阻止できる程度の細かさの網目状体から成っていても構わない。   Further, just by pushing the cylindrical body 17 toward the opening / closing valve portion 14 side of the connection portion 15, the contact member 26 provided on the peripheral surface of the distal end causes the compression of the opening / closing valve portion 14 side relative to the annular groove 15 a as the engaging portion. It can be in close contact with the inner diameter surface 15f and easily prevent chips from entering. In addition, the cylindrical body does not necessarily need to be equipped with the contact | adherence member 26 in the front-end | tip peripheral surface, and may consist only of a single cylinder member. Furthermore, the cylindrical body is not necessarily limited to the one having water-tightness, and may be formed of a mesh body having such a fineness as to prevent, for example, entry of chips.

分岐口1aの穿設後、穿孔機16のカッタ21を接続部15側まで引き戻し、開閉弁部14の弁体14aを閉塞して、接続部15からボーラーヘッド18、穿孔機16を取り外す。   After drilling the branch port 1a, the cutter 21 of the punching machine 16 is pulled back to the connection part 15 side, the valve body 14a of the on-off valve part 14 is closed, and the borer head 18 and the punching machine 16 are removed from the connection part 15.

図3に示すように、鍔部17aに形成された雌ネジ孔17bに、ネジ28を接続部15の外側端15c側に向けて螺挿するだけで、外側端15cを反力として利用して筒状体17を接続部15から取外すことができる。   As shown in FIG. 3, just by screwing the screw 28 toward the outer end 15c side of the connecting portion 15 into the female screw hole 17b formed in the flange portion 17a, the outer end 15c is used as a reaction force. The cylindrical body 17 can be removed from the connecting portion 15.

図5に示すように、筒状体17の取り外し後、接続部15の内方に、先端が外径方向に膨出した膨出部40aを有する分岐管40を挿入する。接続部15に挿入された分岐管40は、膨出部40aがロックリング22に係止することで抜出しが阻止され、且つ外周面が止水パッキン23に当接することで水密性が維持される。また、分岐管40には、筒状体17と同様に、弾性変形した止水パッキン23から外周面の全周にかけて均一な力が作用することで、筒状体17が接続部15と略同一の管軸上に配置され分岐管40の接続部15に対する位置合わせが自動的になされるようになっている。尚、分岐管40の挿入の際に、必ずしも筒状体17と接続部15とに介設した同一の止水パッキン23を用いるものに限られず、例えば、分岐管40の挿入の前に筒状体17と接続部15とに介設した止水パッキン23を取り外し、別途準備した新たな止水パッキンを用いて分岐管40と接続部15とに介設するようにしても構わない。次いで、弁体14aを再び開放することで、流体管1と分岐管40とが分岐口1aを介して連通することになる。   As shown in FIG. 5, after removing the cylindrical body 17, the branch pipe 40 having a bulging portion 40 a having a bulging tip in the outer diameter direction is inserted into the inside of the connection portion 15. The branch pipe 40 inserted into the connecting portion 15 is prevented from being pulled out when the bulging portion 40 a is engaged with the lock ring 22, and the watertightness is maintained because the outer peripheral surface abuts against the water blocking packing 23. . Similarly to the cylindrical body 17, a uniform force acts on the branch pipe 40 from the elastically deformed water-stopping packing 23 to the entire outer peripheral surface, so that the cylindrical body 17 is substantially the same as the connecting portion 15. The branch pipe 40 is automatically aligned with the connecting portion 15 arranged on the tube axis. In addition, when inserting the branch pipe 40, it is not necessarily limited to using the same water-stopping packing 23 interposed between the cylindrical body 17 and the connection portion 15. For example, the cylindrical pipe before the branch pipe 40 is inserted. You may make it remove the water stop packing 23 interposed in the body 17 and the connection part 15, and insert in the branch pipe 40 and the connection part 15 using the new water stop packing prepared separately. Next, by opening the valve body 14a again, the fluid pipe 1 and the branch pipe 40 communicate with each other through the branch port 1a.

このように、穿孔機16と係合部としての環状溝15aの間に介設された筒状体17により、穿孔機16で分岐口1aを穿設する際の切り粉が係合部へ進入することを阻止できるため、分岐口1aの穿設後、環状溝15aが切り粉の進入により不具合を生じることなく分岐管40に係合し、分岐管40を接続部15に水密性を維持した状態で接続できる。また、筒状体17が、分岐管40との接続に用いるロックリング22が止水パッキン23が接続部15の内周面に予め組み付けられた状態で、接続部15に嵌挿できることで、筒状体17を取外した後に、別の組付工程を要することなく、分岐管40を直ぐに挿入できる。   In this way, by the cylindrical body 17 interposed between the drilling machine 16 and the annular groove 15a as the engaging part, chips when the branching hole 1a is drilled by the drilling machine 16 enter the engaging part. Therefore, after the opening of the branch port 1a, the annular groove 15a is engaged with the branch pipe 40 without causing trouble due to the ingress of chips, and the branch pipe 40 is kept watertight at the connecting portion 15. Can be connected in a state. Further, the cylindrical body 17 can be fitted and inserted into the connection portion 15 with the lock ring 22 used for connection with the branch pipe 40 being assembled in advance on the inner peripheral surface of the connection portion 15. The branch pipe 40 can be inserted immediately after removing the state body 17 without requiring a separate assembling step.

以上、本実施例における管接続装置1にあっては、筒状体17は、穿孔機16と環状溝15aとの間に介設される際に止水パッキン23を接続部15の内方に向けて押圧する環状の鍔部17aを備え、接続部15は、接続部15の外側端15cから内方に向けて、漸次縮径する傾斜をなす環状のテーパー面15gを備え、筒状体17は、鍔部17aによって押圧された止水パッキン23がテーパー面15gによって更に接続部15の管軸に向けて押圧されることで、接続部15と略同一の管軸上に配置されるので、穿孔機16と接続部15との間に筒状体17を介設させることで鍔部17aによって押圧された止水パッキン23が筒状体17を更に接続部15の管軸に向けて押圧することにより、筒状体が接続部と自動的に略同一管軸上に配置されるため、筒状体の先端周面を接続部の係合部15よりも開閉弁部14側に位置合わせの必要なく当接させて穿孔機16で分岐口1aを穿設する際の切り粉が環状溝15aへ進入することを阻止できるとともに、分岐口1aの穿設後、環状溝15aが切り粉の進入により不具合を生じることなく分岐管40に係合し、分岐管40を接続部15に水密性を維持した状態で接続できる。   As described above, in the pipe connection device 1 according to the present embodiment, when the cylindrical body 17 is interposed between the drilling machine 16 and the annular groove 15a, the water stop packing 23 is placed inward of the connection portion 15. The connecting portion 15 includes an annular tapered surface 15g that gradually decreases in diameter from the outer end 15c of the connecting portion 15 inward, and includes a cylindrical body 17. Since the water-stopping packing 23 pressed by the flange portion 17a is further pressed toward the tube axis of the connection portion 15 by the tapered surface 15g, it is disposed on the tube axis substantially the same as the connection portion 15. By providing the tubular body 17 between the drilling machine 16 and the connecting portion 15, the water-stop packing 23 pressed by the flange portion 17 a further presses the tubular body 17 toward the tube axis of the connecting portion 15. Therefore, the cylindrical body is automatically placed on the same tube axis as the connection part. Therefore, the end peripheral surface of the cylindrical body is brought into contact with the opening / closing valve portion 14 side of the connection portion without being necessary to be aligned with respect to the opening / closing valve portion 14 so as to cut the branch port 1a with the punching machine 16. The powder can be prevented from entering the annular groove 15a, and after the branch port 1a is drilled, the annular groove 15a is engaged with the branch pipe 40 without causing any trouble due to the entry of the chips, and the branch pipe 40 is connected to the connecting portion. 15 can be connected in a state of maintaining watertightness.

また、筒状体17は、接続部15のよりも開閉弁部14側に当接する先端周面に、密着部材26を備えているので、筒状体17を接続部15の開閉弁部14側に向けて押し込むだけで、先端周面に備えた密着部材26により環状溝15aよりも開閉弁部14側で密着し、切り粉の進入を簡単に防ぐことができる。   Moreover, since the cylindrical body 17 is provided with a close contact member 26 on the distal end peripheral surface that is in contact with the opening / closing valve portion 14 side of the connection portion 15, the cylindrical body 17 is connected to the opening / closing valve portion 14 side of the connection portion 15. Only by pushing in toward the opening, the contact member 26 provided on the peripheral surface of the tip makes a close contact with the on-off valve portion 14 side with respect to the annular groove 15a, and can easily prevent chips from entering.

また、接続部15の外側端15cに、穿孔機16の付属部品であるボーラーヘッド18が取り付けられ、ボーラーヘッド18に、接続部15の外部に連通可能な連通路18aが形成されているので、穿孔機16で分岐口1aを穿設する際に、ボーラーヘッド18に形成された連通路18aを開放することで、発生する切り粉を連通路18aを介して接続部15の外部に排出できる。   In addition, a borer head 18 that is an accessory part of the drilling machine 16 is attached to the outer end 15c of the connection part 15, and the communication path 18a that can communicate with the outside of the connection part 15 is formed in the borer head 18. When drilling the branch port 1a with the punching machine 16, the generated chips can be discharged to the outside of the connecting portion 15 through the communication path 18a by opening the communication path 18a formed in the borer head 18.

次に、実施例2に係る管接続装置につき、図6から図7を参照して説明する。尚、前記実施例と同一構成で重複する構成を省略する。   Next, the pipe connecting device according to the second embodiment will be described with reference to FIGS. In addition, the same structure as the said Example is abbreviate | omitted.

図6及び図7に示すように、本実施例2におけるボーラーヘッド18の外周面には、振動防止部材18bが等間隔に複数(本実施例では4つ)形成されている。これら振動防止部材18bは、ボーラーヘッド18が鍔部17aの背面側に取り付けられることで鍔部17a及びフランジ20の外周面にそれぞれ当接するように成っている。   As shown in FIGS. 6 and 7, a plurality (four in this embodiment) of vibration preventing members 18b are formed at equal intervals on the outer peripheral surface of the borer head 18 in the second embodiment. These vibration preventing members 18b are configured to come into contact with the outer peripheral surfaces of the flange portion 17a and the flange 20 by attaching the borer head 18 to the rear surface side of the flange portion 17a.

このように各振動防止部材18bが鍔部17a及びフランジ20の外周面に当接した状態でボーラーヘッド18と鍔部17aとフランジ20とを長ボルト・ナット25により固定することで、カッタ21によって流体管1を穿設する際に穿孔機16に生じる振動を各振動防止部材18bが鍔部17a及びフランジ20に当接することで防止し、カッタ21によって分岐口1aを正確に穿設することが可能となる。   By fixing the borer head 18, the flange portion 17 a, and the flange 20 with the long bolts / nuts 25 with the vibration preventing members 18 b in contact with the outer peripheral surfaces of the flange portion 17 a and the flange 20 in this way, The vibration generated in the drilling machine 16 when the fluid pipe 1 is drilled can be prevented by the vibration preventing members 18b coming into contact with the flange portion 17a and the flange 20, and the branch port 1a can be drilled accurately by the cutter 21. It becomes possible.

以上、本実施例における管接続装置1にあっては、穿孔機16は、ボーラーヘッド18と一体に構成されるとともに、接続部15に外方から接続することで穿孔機16の振動を防止する振動防止部材18bを複数備えているので、ボーラーヘッド18を接続部15の外側端15cに取り付けることで同時に穿孔機16の取り付けを行うことができるとともに、振動防止部材18bによって穿孔機16の振動が防止されるため、分岐口1aを穿設する際に分岐口1aがずれて穿設されてしまうことがなく、且つ接続部15内を傷付けてしまう虞を解消できる。   As described above, in the pipe connecting device 1 according to the present embodiment, the drilling machine 16 is configured integrally with the borer head 18 and prevents vibration of the drilling machine 16 by connecting to the connecting portion 15 from the outside. Since a plurality of vibration preventing members 18b are provided, the drilling machine 16 can be attached at the same time by attaching the borer head 18 to the outer end 15c of the connecting portion 15, and the vibration preventing member 18b causes vibration of the drilling machine 16 to occur. Therefore, when the branch port 1a is drilled, the branch port 1a is not shifted and drilled, and the possibility of damaging the inside of the connecting portion 15 can be solved.

次に、実施例3に係る管接続装置につき、図8を参照して説明する。尚、前記実施例に示される構成部分と同一構成部分に付いては同一符号を付して重複する説明を省略する。   Next, a pipe connecting device according to a third embodiment will be described with reference to FIG. It should be noted that the same components as those shown in the above-described embodiment are denoted by the same reference numerals and redundant description is omitted.

図8に示すように、本実施例3における止水パッキン23’は、軟質ゴムで構成された軟質部23aと、軟質部23aを構成する軟質ゴムよりも硬質なゴムで構成された硬質部23bと、の一体構成と成っている。尚、止水パッキンを構成する軟質部及び硬質部は、各々別体として成型され互いに貼り合せたものであっても構わない。このうち軟質部23aは、筒状体17が接続部15に嵌設される際にテーパー面15gによって押圧され、実施例1に説明したように筒状体17が接続部15と略同一の管軸上に配置されるようになっている。   As shown in FIG. 8, the water stop packing 23 ′ in the third embodiment includes a soft portion 23a made of soft rubber and a hard portion 23b made of rubber harder than the soft rubber constituting the soft portion 23a. It is composed of an integrated structure. In addition, the soft part and hard part which comprise a water stop packing may be shape | molded as a separate body, respectively, and may be bonded together. Of these, the soft portion 23a is pressed by the tapered surface 15g when the tubular body 17 is fitted to the connection portion 15, and the tubular body 17 is substantially the same tube as the connection portion 15 as described in the first embodiment. It is arranged on the axis.

一方硬質部23bは、筒状体17が接続部15に嵌設される際に凹部17f内に挿通配置されることによって、ほとんど弾性変形することなく鍔部17aの流体管1方向を向く力を軟質部23aに伝達するように成っている。このため、本実施例の管接続装置1は、筒状体17を環状溝15aと穿孔機16との間に介設するのに要する力を少ないロスによって筒状体17を接続部15と略同一の管軸上に配置するために使用することができる。   On the other hand, the hard portion 23b is inserted and disposed in the recess 17f when the cylindrical body 17 is fitted to the connection portion 15, thereby causing a force directed toward the fluid pipe 1 of the flange portion 17a with almost no elastic deformation. It transmits to the soft part 23a. For this reason, the pipe connecting device 1 of the present embodiment is substantially the same as the connecting portion 15 with a small loss of force required to interpose the cylindrical body 17 between the annular groove 15a and the punching machine 16. Can be used to place on the same tube axis.

以上、本実施例における管接続装置1にあっては、止水パッキン23’は、テーパー面15gによって接続部15の管軸方向に押圧される軟質部23aと、軟質部23aよりも硬質に構成されるとともに軟質部23a及び鍔部17aの間に設けられ、鍔部17aによって流体管1に向けて押圧される硬質部23bと、から構成されているので、筒状体17が穿孔機16と接続部15との間に介設される際に、接続部15と筒状体17との間で弾性変形する軟質部23aを硬質部23bによって接続部15の外側に膨出しないよう押さえ付けることができるので、より確実に接続部15と筒状体17との間を水密に止水することができるばかりか、硬質部23bが比較的弾性変形せずに形状維持したまま鍔部17aに押圧されるとともに、軟質部23aが接続部15と筒状体17との間で柔軟に弾性変形できるので、筒状体17が接続部15と略同一の管軸上に配置される精度を高めることができる。   As described above, in the pipe connection device 1 according to the present embodiment, the water blocking packing 23 ′ is configured to be harder than the soft part 23a and the soft part 23a pressed in the pipe axis direction of the connection part 15 by the tapered surface 15g. In addition, the cylindrical body 17 is provided between the soft portion 23a and the flange portion 17a and is pressed against the fluid pipe 1 by the flange portion 17a. When interposed between the connecting portion 15, the soft portion 23 a that is elastically deformed between the connecting portion 15 and the cylindrical body 17 is pressed against the outside of the connecting portion 15 by the hard portion 23 b. Therefore, not only can the water tightly stop between the connecting portion 15 and the cylindrical body 17 but also the hard portion 23b is pressed against the flange portion 17a while maintaining its shape without being relatively elastically deformed. And soft Since 23a can be flexibly elastic deformation between the connecting part 15 and the cylindrical body 17, it is possible to increase the accuracy with which the tubular member 17 is disposed substantially on the same tube axis and connecting portion 15.

以上、本発明の実施例を図面により説明してきたが、具体的な構成はこれら実施例に限られるものではなく、本発明の要旨を逸脱しない範囲における変更や追加があっても本発明に含まれる。   Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

例えば、前記実施例1では、筒状体17は、本体筒の先端周面に弾性材から成る密着部材26を備えているが、例えば筒状体は、筒状体全体が弾性材若しくはプラスチック材等の樹脂材から成るものであってもよい。更に前記実施例の筒状体17は、鍔部17aに設けられたネジ28を螺挿することで、接続部15から取外されるように成っているが、例えば筒状体は、別段に設けた図示しない取外し手段等により取外されてもよいし、或いは前記実施例の筒状体は、止水パッキン23が接続部15の外側端15cに向けて拡開するテーパー面15gと接触しており比較的取り外し易いことから、取外し手段を用いずに使用者が手で取外しても構わない。   For example, in the first embodiment, the cylindrical body 17 includes the contact member 26 made of an elastic material on the front end peripheral surface of the main body cylinder. For example, the cylindrical body is entirely made of an elastic material or a plastic material. It may be made of a resin material such as Further, the cylindrical body 17 of the above embodiment is configured to be removed from the connection portion 15 by screwing a screw 28 provided on the flange portion 17a. For example, the cylindrical body is separately provided. The cylindrical body of the above-described embodiment may be removed by a provided unillustrated removing means or the like, or the cylindrical body of the above-described embodiment is in contact with the tapered surface 15g where the water stop packing 23 expands toward the outer end 15c of the connecting portion 15. Since it is relatively easy to remove, the user may remove it by hand without using the removing means.

また例えば、前記実施例1では、接続部15の外側端15cに取り付けられたボーラーヘッド18の連通路18aを開放することで、この連通路18aを介して切り粉を接続部15の外部に排出させながら分岐口1aを穿設しているが、例えば、切り粉を外部に排出するための連通路が筒状体に形成されていてもよいし、若しくは穿孔時に切り粉を一時集積するための集積箇所を別段に設けても構わない。   Further, for example, in the first embodiment, by opening the communication path 18a of the borer head 18 attached to the outer end 15c of the connection portion 15, the chips are discharged to the outside of the connection portion 15 through the communication path 18a. Although the branch port 1a is drilled while being made, for example, a communication path for discharging the chips to the outside may be formed in the cylindrical body, or for temporarily collecting the chips when drilling An accumulation location may be provided separately.

1 流体管
1a 分岐口
10 管接続装置
11 被覆部
12 筐体
13 開口部
14 開閉弁部
15 接続部
15a 環状溝(係合部)
15g テーパー面(テーパー部)
16 穿孔機
17 筒状体
17a 鍔部(押圧部)
18 ボーラーヘッド(止水蓋)
18a 連通路
18b 振動防止部材
19 排出バルブ
20 フランジ
22 ロックリング
23,23’ 止水パッキン(止水部材)
23a 軟質部
23b 硬質部
40 分岐管
DESCRIPTION OF SYMBOLS 1 Fluid pipe 1a Branch port 10 Pipe connection apparatus 11 Covering part 12 Housing | casing 13 Opening part 14 On-off valve part 15 Connection part 15a Annular groove (engagement part)
15g Tapered surface (tapered part)
16 punching machine 17 cylindrical body 17a collar part (pressing part)
18 Borer head (waterproof lid)
18a Communication path 18b Vibration prevention member 19 Discharge valve 20 Flange 22 Lock ring 23, 23 'Water-stop packing (water-stop member)
23a Soft part 23b Hard part 40 Branch pipe

Claims (5)

流体管を被覆する被覆部及び筐体を備えるとともに、該筐体は、前記被覆部に接続され前記流体管に形成される分岐口に連通する連通部と、前記分岐口を穿設する穿孔機若しくは分岐管に水密に接続可能な接続部と、前記連通部と前記接続部とを連通可能な開閉弁部と、から構成されており、前記接続部の内周面に設けられ、前記分岐管の接続時に該分岐管と係合する係合部と、前記穿孔機の前記接続部への接続時に前記穿孔機と前記係合部との間に介設され、先端周面が前記接続部の前記係合部よりも前記開閉弁部側の前記筐体に当接することで前記係合部への切り粉の進入を阻止する筒状体と、該筒状体が前記穿孔機と前記係合部との間に介設されることで弾性変形し、前記接続部と前記筒状体とに水密に当接する環状の止水部材と、を備えた管接続装置であって、
前記筒状体は、前記穿孔機と前記係合部との間に介設される際に前記止水部材を前記接続部の内方に向けて押圧する環状の押圧部を備え、前記接続部は、該接続部の外側端から内方に向けて、漸次縮径する傾斜をなす環状のテーパー部を備え、前記筒状体は、前記押圧部によって押圧された止水部材がテーパー部によって更に前記接続部の管軸に向けて押圧されることで、前記接続部と略同一の管軸上に配置されることを特徴とする管接続装置。
A casing having a covering portion and a casing covering the fluid pipe, the casing being connected to the covering portion and communicating with a branch port formed in the fluid pipe, and a punching machine for punching the branch port Or it is comprised from the connection part which can be connected watertightly to a branch pipe, and the on-off valve part which can connect the said communication part and the said connection part, It is provided in the internal peripheral surface of the said connection part, The said branch pipe An engaging portion that engages with the branch pipe when connected to the connecting portion, and is interposed between the punching device and the engaging portion when connected to the connecting portion of the drilling machine, and a tip peripheral surface of the connecting portion A cylindrical body that prevents the chips from entering the engagement portion by contacting the casing on the opening / closing valve portion side of the engagement portion, and the cylindrical body is engaged with the punching machine. An annular water stop member that is elastically deformed by being interposed between the connecting portion and the tubular body and that is in watertight contact with the connecting portion and the cylindrical body, An example was a tube connecting device,
The cylindrical body includes an annular pressing portion that presses the water stop member toward the inside of the connection portion when interposed between the drilling machine and the engagement portion, and the connection portion Is provided with an annular tapered portion having an inclination that gradually decreases in diameter from the outer end of the connecting portion inward, and the cylindrical body further includes a water-stop member pressed by the pressing portion by the tapered portion. The pipe connecting device, wherein the pipe connecting device is arranged on a pipe axis substantially the same as the connecting part by being pressed toward the pipe axis of the connecting part.
前記筒状体の前記筐体に当接する先端周面に、密着部材を備えていることを特徴とする請求項1に記載の管接続装置。   The pipe connection device according to claim 1, further comprising: a close contact member provided on a distal end peripheral surface of the cylindrical body that contacts the casing. 前記接続部の外側端に、前記穿孔機の付属部品である止水蓋が取り付けられ、該止水蓋に、前記接続部の外部に連通可能な連通路が形成されていることを特徴とする請求項1または2に記載の管接続装置。   A water stop lid, which is an accessory part of the drilling machine, is attached to the outer end of the connection portion, and a communication path that can communicate with the outside of the connection portion is formed in the water stop lid. The pipe connecting device according to claim 1 or 2. 前記穿孔機は、前記止水蓋と一体に構成されるとともに、該止水蓋が前記接続部に外方から接続することで前記穿孔機の振動を防止する振動防止部材を複数備えていることを特徴とする請求項3に記載の管接続装置。   The drilling machine is configured integrally with the water stop lid, and includes a plurality of vibration preventing members that prevent vibration of the drilling machine by connecting the water stop lid from the outside to the connection portion. The pipe connection device according to claim 3. 前記止水部材は、前記テーパー部によって前記接続部の管軸方向に押圧される軟質部と、該軟質部よりも硬質に構成され該押圧部によって前記流体管に向けて押圧される硬質部と、から構成されていることを特徴とする請求項1ないし4のいずれかに記載の管接続装置。   The water stop member includes a soft portion pressed in the tube axis direction of the connection portion by the tapered portion, a hard portion configured to be harder than the soft portion, and pressed toward the fluid pipe by the press portion, The pipe connection device according to claim 1, wherein the pipe connection device is configured as described above.
JP2010258173A 2010-11-18 2010-11-18 Pipe connection device Active JP5714307B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010258173A JP5714307B2 (en) 2010-11-18 2010-11-18 Pipe connection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010258173A JP5714307B2 (en) 2010-11-18 2010-11-18 Pipe connection device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2015046882A Division JP5892572B2 (en) 2015-03-10 2015-03-10 Pipe connection device

Publications (2)

Publication Number Publication Date
JP2012107723A true JP2012107723A (en) 2012-06-07
JP5714307B2 JP5714307B2 (en) 2015-05-07

Family

ID=46493551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010258173A Active JP5714307B2 (en) 2010-11-18 2010-11-18 Pipe connection device

Country Status (1)

Country Link
JP (1) JP5714307B2 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57145892U (en) * 1981-03-11 1982-09-13
JPH03118391U (en) * 1990-03-19 1991-12-06
JP2004308774A (en) * 2003-04-07 2004-11-04 Toda Constr Co Ltd Uninterrupted-water branch joint and branching method of copper pipe
JP2005106082A (en) * 2003-09-26 2005-04-21 Cosmo Koki Co Ltd Installation method of gate valve in continuous water construction method
JP2005315384A (en) * 2004-04-30 2005-11-10 Waterworks Technology Development Organization Co Ltd Pipe connection structure and setting method of work machine in piping to insertion pipe part
JP2008089095A (en) * 2006-10-03 2008-04-17 Kubota Corp Pipe joint and backup ring used for the same
JP4162063B2 (en) * 1998-07-13 2008-10-08 コスモ工機株式会社 Pipe connection device
JP2009008125A (en) * 2007-06-26 2009-01-15 Cosmo Koki Co Ltd Pipe joint
JP2009197847A (en) * 2008-02-20 2009-09-03 Yonego City Mechanism protecting method for forming diversion hole of empty pipe snap tap, and cylindrical plate

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57145892U (en) * 1981-03-11 1982-09-13
JPH03118391U (en) * 1990-03-19 1991-12-06
JP4162063B2 (en) * 1998-07-13 2008-10-08 コスモ工機株式会社 Pipe connection device
JP2004308774A (en) * 2003-04-07 2004-11-04 Toda Constr Co Ltd Uninterrupted-water branch joint and branching method of copper pipe
JP2005106082A (en) * 2003-09-26 2005-04-21 Cosmo Koki Co Ltd Installation method of gate valve in continuous water construction method
JP2005315384A (en) * 2004-04-30 2005-11-10 Waterworks Technology Development Organization Co Ltd Pipe connection structure and setting method of work machine in piping to insertion pipe part
JP2008089095A (en) * 2006-10-03 2008-04-17 Kubota Corp Pipe joint and backup ring used for the same
JP2009008125A (en) * 2007-06-26 2009-01-15 Cosmo Koki Co Ltd Pipe joint
JP2009197847A (en) * 2008-02-20 2009-09-03 Yonego City Mechanism protecting method for forming diversion hole of empty pipe snap tap, and cylindrical plate

Also Published As

Publication number Publication date
JP5714307B2 (en) 2015-05-07

Similar Documents

Publication Publication Date Title
JP6077151B2 (en) Pipe connection device
JP5636210B2 (en) Control valve and installation method
JP5892572B2 (en) Pipe connection device
JP5486910B2 (en) Pipe connection device
JP5486915B2 (en) Pipe connection device
JP5631573B2 (en) Pipe connection device
JP5714307B2 (en) Pipe connection device
JP5944705B2 (en) Branch opening communication method
JP2014219085A (en) Snap tap close fitted core
JP4642536B2 (en) Non-continuous water flow path treatment equipment for existing fluid pipes
JP6238641B2 (en) Branch drilling device
JP5674400B2 (en) Control valve
JP5967271B2 (en) Fitting and fitting mounting structure
JP3667629B2 (en) Saddle water faucet for resin pipe
JP6488185B2 (en) How to release the shutoff of the fluid pipe
JP4398037B2 (en) Rust prevention tool insertion device and continuous water method
JP4652014B2 (en) Rust prevention method for the cutting edge in the installation work of the insert
JP4656368B2 (en) Continuous flow closure method
JP2018013130A (en) Boring machine connection device
JP4038802B2 (en) Check valve mounting structure
JP2009115206A (en) Pipe coupling
JP3185876U (en) Saddle tap with saddle
JP4948770B2 (en) Enclosure device
JP4363591B2 (en) Water stop method and water stop device for branch pipe
KR101713411B1 (en) Connector of hose for agricultural watering line

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20131009

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20140620

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20140722

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140918

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20150303

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20150311

R150 Certificate of patent or registration of utility model

Ref document number: 5714307

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250