JP5698721B2 - High pressure water drilling device for pipeline - Google Patents
High pressure water drilling device for pipeline Download PDFInfo
- Publication number
- JP5698721B2 JP5698721B2 JP2012228097A JP2012228097A JP5698721B2 JP 5698721 B2 JP5698721 B2 JP 5698721B2 JP 2012228097 A JP2012228097 A JP 2012228097A JP 2012228097 A JP2012228097 A JP 2012228097A JP 5698721 B2 JP5698721 B2 JP 5698721B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure water
- pipe
- hose
- nozzle
- cylinder
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 122
- 238000005553 drilling Methods 0.000 title claims description 21
- 230000007246 mechanism Effects 0.000 claims description 88
- 238000002347 injection Methods 0.000 claims description 22
- 239000007924 injection Substances 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 229920001971 elastomer Polymers 0.000 claims description 17
- 230000009471 action Effects 0.000 claims description 11
- 238000003780 insertion Methods 0.000 description 21
- 230000037431 insertion Effects 0.000 description 21
- 238000003825 pressing Methods 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000004080 punching Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 240000006829 Ficus sundaica Species 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Description
この発明は、主たる管路と該主たる管路に接続される接続管との閉塞状態にある接続部を穿孔する管路の穿孔装置に関し、更に詳しくは、高圧の噴射水流により該接続部を切断穿孔する高圧水穿孔装置に関する。 The present invention relates to a pipe punching device for drilling a connecting portion in a closed state between a main pipe and a connecting pipe connected to the main pipe, and more particularly, the connecting portion is cut by a high-pressure jet water flow. The present invention relates to a high-pressure water perforating apparatus for perforating.
下水道管路において、地中に埋設された主たる管路すなわち下水道本管は地表面と取付け管を介して接続されるが、老朽化した下水道本管の補修に際し、該下水道本管にライニング管を挿入してライニング施工が実施される。 In the sewer pipe, the main pipe buried in the ground, that is, the sewer main, is connected to the ground surface via a mounting pipe. The lining construction is carried out by inserting.
この穿孔手段として、高圧の噴射水流（ウォータジェット）により該接続部を切断する穿孔装置を採用することは、実開平６−５７５９８号公報（以下、先行技術という）により公知である。
しかし、この先行技術の穿孔装置（開孔装置）では、高圧水用可撓管いわゆるホースが当該装置のノズル部（低速旋回ノズルヘッド）を取り付けている旋回軸駆動機構に剛結されており、該高圧水用ホースの該装置からの取外しが困難であり、更にはノズル部の取外しもなされない。本先行技術では高圧水用ホースの接続は製作時の工場での組付け加工でなされ、現場での組付けはなされない。更に、穿孔効果のよい円盤状のノズル部が採用されているが、該円盤状ノズル部は旋回軸を介して旋回軸駆動機構と一体となり、該円盤状ノズル部の取外し・取替えがなし難い。また、旋回軸駆動機構には地上部に延びる長いフレキシブルシャフトが連結される。
このため、当該先行技術では、取付け管の管径に合せた穿孔径をもつノズル部を随時に取り替えて使用することが困難であり、規定の径となり、融通性がないものである。また、長い回転軸用のフレキシブルシャフトの取扱いが不便である。
It is known from Japanese Utility Model Laid-Open No. 6-57598 (hereinafter referred to as the prior art) to employ a perforating device that cuts the connecting portion with a high-pressure jet of water (water jet) as the perforating means.
However, in this prior art perforating device (opening device), a flexible tube for high pressure water, a so-called hose, is rigidly connected to a turning shaft drive mechanism to which the nozzle portion (low speed turning nozzle head) of the device is attached, It is difficult to remove the high-pressure water hose from the apparatus, and further, the nozzle part is not removed. In this prior art, the connection of the high-pressure water hose is made by assembly at the factory at the time of manufacture, and is not assembled at the site. Furthermore, although a disk-shaped nozzle portion having a good perforation effect is employed, the disk-shaped nozzle portion is integrated with the turning shaft drive mechanism via the turning shaft, and it is difficult to remove and replace the disk-like nozzle portion. In addition, a long flexible shaft extending to the ground part is connected to the turning shaft drive mechanism.
For this reason, in the prior art, it is difficult to replace and use a nozzle portion having a perforation diameter that matches the pipe diameter of the mounting pipe as needed, resulting in a specified diameter and inflexibility. Moreover, the handling of the flexible shaft for a long rotating shaft is inconvenient.
本発明は上記従来技術の実情に鑑みてなされたものであり、この種の高圧水による管路の穿孔装置において、円盤状ノズル部を採用するとともに、現場での該円盤状ノズル部への高圧水用ホースの止水漏れのない確実な着脱を図り、併せて該円盤状ノズル部の旋回機構の改善をなすことを目的とする。
本発明はこのため、高圧水用継手の導入をなすとともに、当該高圧水用ホースの特性に着目し、その多機能化を図り、この目的を達成したものである。
The present invention has been made in view of the above-described prior art, and in this kind of high-pressure water pipe piercing device, a disk-shaped nozzle portion is employed, and a high-pressure to the disk-shaped nozzle portion in the field is used. The purpose of the present invention is to achieve reliable attachment and detachment of the water hose without water leakage and to improve the turning mechanism of the disk-like nozzle portion.
For this reason, the present invention achieves this purpose by introducing a joint for high-pressure water and paying attention to the characteristics of the hose for high-pressure water to achieve multi-functionality.
本発明の管路の高圧水穿孔装置は具体的には以下の構成を採る。
本発明の第１の管路の高圧水穿孔装置（Ｓ）は請求項１に記載のとおり、大径の主管（Ｐ）の内面にライニング管（Ｒ）が施され、該主管に直交あるいは急傾斜角をもって接続される小径の接続管（Ｑ）内へ挿入され、当該ライニング管（Ｒ）により閉塞された接続部（Ｈ）を穿孔する穿孔装置であって、
高圧水を導通するとともに所要の剛性を有する長尺の高圧水用可撓管（１）と、
内部に導水通路（６ａ）を有する円盤状体（６）よりなり、該円盤状体の前面の中心に先端の尖ったセンターピン（８）が一定長をもって突設され、該円盤状体の他の前面に高圧水噴射口（６ｂ）を有し、該円盤状体の後面の前記導水通路に連通して前記高圧水用可撓管の先端の円筒体の回動締込み操作による留め具装置（７）を介し、かつ該留め具装置の先端面（１０ｄ）と前記円盤状体の後面の導水通路の開口面（６ｃ）とをテーパー当接させ、着脱可能に接続されるノズル部（２）と、
前記ノズル部の後方位置で、前記高圧水用可撓管回りに固定把持され、該可撓管の回転動を許容して前記接続管内に固定保持される位置保持機構部（３）と、
前記高圧水用可撓管の後端部に接続され、該高圧水用可撓管の回転を許容する（３４）とともに該高圧水用可撓管内に高圧水を供給する高圧水ポンプ（３３）と、該高圧水用可撓管の後端部近傍に連動し、該高圧水用可撓管に回転を付与する回転駆動部（５）と、を少なくとも備えてなる動力部（４）と、
からなることを特徴とする。
上記において、「高圧水」は１００ＭＰａ（メガパスカル）以上をなし、本発明では１００〜２００ＭＰａが使用される。「高圧水用可撓管」の可撓（屈撓）性は適度の長さにおいて曲げとして発揮されるものであり、またその剛性は管軸方向の剛性及びねじり剛性を含み、軸力及びねじり力に対抗する。また、「留め具装置」は、具体的には以下の実施形態に示される。
上記主たる構成において、
１）ノズル部（２）の円盤状体（６）の前面部（６ｅ）に、該ノズル部（２）の高圧水噴射口（６ｂ）及びセンターピン（８）を残して該円盤状体（６）の前面部（６ｅ）の全面を覆い、環状体をなすとともに前記センターピン（８）の先端より所定長を存して露出するに足る一定厚さを有し、周面（５０ａ）が曲面状をなす装着体（５０）が取り付けられてなること、
は適宜付加される有用な技術的事項である。
Specifically, the high-pressure water perforating apparatus for pipes according to the present invention has the following configuration.
The high-pressure water perforating apparatus (S) of the first pipe line of the present invention is provided with a lining pipe (R) on the inner surface of a large-diameter main pipe (P), as defined in claim 1, and is orthogonal or steep to the main pipe. A piercing device that is inserted into a small-diameter connecting pipe (Q) that is connected with an inclination angle, and pierces a connecting portion (H) closed by the lining pipe (R),
A long flexible pipe for high pressure water (1) which conducts high pressure water and has required rigidity;
Disc-shaped body having an internal water guide passage (6a) made of (6), a pointed center pin tip in front of the center of the disc-shaped body (8) is protruded with a certain length, the other the disc-shaped body of a high pressure water injection ports (6b) on the front, the disc-shaped body after the surface of the water guide passage fastening device according turning tightening operation of the cylinder of the distal end of the high pressure water for the flexible tube communicates with the (7), and the tip (10d) of the fastener device and the opening (6c) of the water guide passage on the rear surface of the disk-shaped body are brought into taper contact, and the nozzle portion (2 )When,
A position holding mechanism portion (3) fixed and held around the flexible tube for high-pressure water at a rear position of the nozzle portion, and fixed and held in the connection tube while allowing the flexible tube to rotate;
A high-pressure water pump (33) connected to the rear end of the high-pressure water flexible tube and allowing the high-pressure water flexible tube to rotate (34) and supplying high-pressure water into the high-pressure water flexible tube And a power drive unit (4) comprising at least a rotation drive unit (5) that interlocks with the vicinity of the rear end of the high-pressure water flexible tube and imparts rotation to the high-pressure water flexible tube;
It is characterized by comprising.
In the above, “high pressure water” is 100 MPa (megapascal) or more, and 100 to 200 MPa is used in the present invention. The flexibility (flexibility) of “flexible pipe for high pressure water” is exhibited as a bend at an appropriate length, and its rigidity includes rigidity in the axial direction of the pipe and torsional rigidity. Opposes power. The “fastener device” is specifically shown in the following embodiment.
In the above main configuration,
1) On the front surface (6e) of the disk-shaped body (6) of the nozzle section (2), the disk-shaped body (6e) leaving the high-pressure water injection port (6b) and the center pin (8) of the nozzle section (2) 6) covers the entire surface of the front surface portion (6e), forms an annular body, has a certain thickness sufficient to be exposed at a predetermined length from the tip of the center pin (8), and the peripheral surface (50a) A mounting body (50) having a curved surface is attached;
Is a useful technical matter added as appropriate.
（作用）
本管路の高圧水穿孔装置（Ｓ）の使用前においては、ノズル部（２）は高圧水用可撓管（以下「ホース」と略称する。）（１）の先端の留め具装置（７）から取り外されており、またホース（１）の後端では動力部（４）との接続が解除されている。
本穿孔装置（Ｓ）の使用において、地上部で接続管（Ｑ）の管径に応じたノズル部（２）をホース（１）先端の留め具装置（７）を介して取り付け、またホース（１）の後端を動力部（４）に接続する。留め具装置（４）のノズル部（２）の取付けは、該留め具装置（７）の円筒体を回動締め込むことにより、該留め具装置（７）の先端面（１０ｄ）とノズル部（２）の後面の導水通路の開口面（６ｃ）とが強い圧力でテーパー当接され、高い水密性を得る。留め具装置（７）の円筒体の締込み回動・その逆回動操作により、ノズル部（２）との着脱をなす。
ホース（１）を介してノズル部（２）を接続管内に挿入し、ノズル部（２）が閉塞接続部に到達した後、動力部（４）を駆動してホース（）１内に高圧水を導入し、かつホース（１）を微速回転させ、ノズル部（２）を微速回転させて穿孔を行う。
ホース（１）の回転により、ホース（１）と一体となっているノズル部（２）も回転し、ノズル部（２）の噴射口（６ｂ）からの噴射流は閉塞接続部を円を描いて切断する。位置保持機構部（３）ではこのホース（１）の回転動を許容し、接続管内に固定保持されており、ホース（１）を介して伝達されるノズル部（２）の噴射反力を受ける。
ノズル部（２）が閉塞された接続部に到達すると、当該先端の尖ったセンターピン（８）の先端が閉塞接続部の中央部に係止し、位置ずれがなく正確な円穿孔がなされ、また該センターピン（８）の長さにより高圧水噴射口（６ｂ）との距離が一定に保持される。
また、前記主たる構成の付加事項１）においては、ホース（１）を介してノズル部（２）を接続管内に進入させるとき、装着体（５０）はその周面（５０ａ）をもって接続管内を円滑に滑り、接続管の曲がり部においても当該周面（５０ａ）が曲がり部に沿って滑り、センターピン（８）の管壁への引っ掛かりがなく、円滑な進入がなされる。
(Function)
Before the use of the high-pressure water perforating device (S) in the main pipe line, the nozzle portion (2) is a fastener device (7) at the tip of the high-pressure water flexible tube (hereinafter abbreviated as “hose”) (1). ) And the connection with the power unit (4) is released at the rear end of the hose (1).
In the use of this drilling device (S), the nozzle portion (2) corresponding to the pipe diameter of the connecting pipe (Q) is attached to the ground portion via the fastening device (7) at the tip of the hose (1), and the hose ( 1) Connect the rear end to the power unit (4). The attachment of the nozzle part (2) of the fastening device (4) is achieved by rotating and tightening the cylindrical body of the fastening device (7), so that the distal end surface (10d) of the fastening device (7) and the nozzle part. (2) The opening surface (6c) of the water guide passage on the rear surface is brought into taper contact with a strong pressure to obtain high water tightness. The nozzle unit (2) is attached to and detached from the fastening device (7) by turning and rotating the cylinder body and rotating the cylinder body in reverse.
The nozzle part (2) is inserted into the connecting pipe through the hose (1), and after the nozzle part (2) reaches the closed connecting part, the power part (4) is driven and high pressure water is put into the hose () 1. And the hose (1) is rotated at a very low speed, and the nozzle portion (2) is rotated at a very low speed to perform perforation.
The nozzle part (2) integrated with the hose (1) is also rotated by the rotation of the hose (1), and the jet flow from the jet port (6b) of the nozzle part (2) draws a circle around the closed connection part. And cut. In the position holding mechanism (3), the hose (1) is allowed to rotate, is fixedly held in the connecting pipe, and receives the injection reaction force of the nozzle (2) transmitted through the hose (1). .
When the nozzle portion (2) reaches the closed connection portion, the tip of the center pin (8) having a sharp tip is locked to the central portion of the closed connection portion, and accurate circular drilling is performed without positional displacement. Further, the distance from the high-pressure water injection port (6b) is kept constant by the length of the center pin (8).
In addition, in the additional matter 1) of the main configuration, when the nozzle portion (2) is advanced into the connecting pipe through the hose (1), the mounting body (50) smoothly moves inside the connecting pipe with its peripheral surface (50a). The peripheral surface (50a) also slides along the bent portion even at the bent portion of the connecting pipe, and the center pin (8) is not caught on the pipe wall, so that a smooth approach is achieved.
本発明の第２の管路の高圧水穿孔装置（Ｓ）は、上記第１発明において、請求項３に記載のとおり、
位置保持機構部（３Ｂ）は、高圧水用可撓管（１）回りに固定把持し、該可撓管（１）の回転動を許容する回転把持機構部（３Ａ）と、接続管内に固定保持され、前記回転把持機構部（３Ａ）を抱持固定する位置固定パッカー（３Ｂ）とからなり、
前記回転把持機構部（３Ａ）は、
ａ）長尺の円筒状の外筒（１６）と短尺の円筒状の内筒（１７）との２重筒構成よりなり、内外筒間に該内筒（１７）の回転のみ許容する軸受（１８）が装着されてなる２重筒部（１４）、
ｂ）前記外筒（１６）内にあって、前記内筒（１７）に一体に固定されるとともに、少なくとも２つ割をなす固定輪（２２）と押輪（２３）との挟着作用により挟着されるゴム体（２５）の内径が縮径されて前記高圧水用可撓管（１）を固定把持する締付け部（１５）、
からなり、
前記位置固定パッカー（３Ｂ）は、前記回転把持機構部（３Ａ）の外筒（１６）の外周に被着固定され、その袋体（２９）の膨張作用をもって接続管の内周面に圧接される、
ことを特徴とする。
上記主たる構成において、
１）ノズル部（２）の円盤状体（６）の前面部（６ｅ）に、該ノズル部（２）の高圧水噴射口（６ｂ）及びセンターピン（８）を残して該円盤状体（６）の前面部（６ｅ）の全面を覆い、環状体をなすとともに前記センターピン（８）の先端より所定長を存して露出するに足る一定厚さを有し、周面（５０ａ）が曲面状をなす装着体（５０）が取り付けられてなること、
２）内筒（１７）の内径は高圧水用可撓管（１）の先端に装着される留め具装置（７）の最外径よりも大径とされること、
３）位置固定パッカー（３Ｂ）の袋体（２９）に水抜き管（３０）が配されること、
は適宜付加される有用な技術的事項である。
The high-pressure water perforation device (S) of the second pipe line of the present invention is the first invention, as described in claim 3,
The position holding mechanism (3B) is fixed and held around the flexible pipe (1) for high-pressure water, and the rotary holding mechanism (3A) that allows the flexible pipe (1) to rotate. A position fixing packer (3B) that holds and fixes the rotary gripping mechanism (3A),
The rotary gripping mechanism (3A)
a) A bearing having a double cylinder configuration of a long cylindrical outer cylinder (16) and a short cylindrical inner cylinder (17), which allows only rotation of the inner cylinder (17) between the inner and outer cylinders ( 18), a double cylinder part (14),
b) Located inside the outer cylinder (16) and fixed integrally to the inner cylinder (17), and is clamped by the clamping action of the fixed ring (22) and the push ring (23) which are at least divided into two parts. A tightening portion (15) for fixing and gripping the flexible pipe (1) for high pressure water by reducing the inner diameter of the rubber body (25) to be attached;
Consists of
The position fixing packer (3B) is fixedly attached to the outer periphery of the outer cylinder (16) of the rotary gripping mechanism portion (3A), and is pressed against the inner peripheral surface of the connecting pipe by the expansion action of the bag body (29). The
It is characterized by that.
In the above main configuration,
1) On the front surface (6e) of the disk-shaped body (6) of the nozzle section (2), the disk-shaped body (6e) leaving the high-pressure water injection port (6b) and the center pin (8) of the nozzle section (2) 6) covers the entire surface of the front surface portion (6e), forms an annular body, has a certain thickness sufficient to be exposed at a predetermined length from the tip of the center pin (8), and the peripheral surface (50a) A mounting body (50) having a curved surface is attached;
2) The inner diameter of the inner cylinder (17) is larger than the outermost diameter of the fastener device (7) attached to the tip of the flexible pipe for high pressure water (1),
3) The drain pipe (30) is arranged on the bag body (29) of the position fixing packer (3B),
Is a useful technical matter added as appropriate.
（作用）
第１発明の作用に付加して、第２発明の管路の高圧水穿孔装置（Ｓ）においては、ノズル部（２）の接続管（Ｑ）内への挿入につき、位置固定パッカー（３Ｂ）の袋体（２９）の適宜の膨張により、ノズル部（２）は接続管（Ｑ）内に円滑に進入する。ノズル部（２）が閉塞接続部（Ｈ）に到達した後は、袋体（２９）を更に膨張させ、接続管（Ｑ）の内周面に強固に圧接させ、回転把持機構部（３Ａ）を固定する。
回転把持機構部（３Ａ）の固定された状態で、締付け部（１５）はホース（１）を把持しつつ内筒（１７）とともにホース（１）の回転動を許容する。この回転動は軸受（１８）を介するので円滑である。
ホース（１）の組付け加工につき、内筒（１７）は先端に留め具装置（４）の装着されたホース（１）の挿入を確保し、加工作業の効率が向上する。また、締付け部（１５）は２つ割により随時に組付け可能であり、直ちに内筒（１７）に組付けられる。締付け部（１５）のゴム体（２５）の把持によりホース（１）の位置調整が可能であり、ノズル部（２）と該回転把持機構部（３Ａ）との距離を調整することができる。
前記主たる構成の付加事項１）については、発明１の付加事項１）に準じる。
付加事項２）においては、回転把持機構部（３Ａ）の内筒（１７）を留め具装置（７）を装着した高圧水用可撓管（１）の先端から組みこむことができ、組付け加工が効率化し、更に、留め具装置（７）を内筒（１７）内へ引き入れ得ることによりノズル部（２）の位置調整の幅が広がる。
付加事項３）においては、閉塞接続部Ｈと位置固定パッカー（３Ｂ）の前面との空間の高圧水噴射に伴う水量が増大して水圧が高まる場合に水抜き管（３０）により排水される。
(Function)
In addition to the action of the first invention, in the high pressure water drilling device (S) of the pipe line of the second invention, the position fixing packer (3B) is inserted with respect to the insertion of the nozzle part (2) into the connecting pipe (Q). Due to appropriate expansion of the bag body (29), the nozzle portion (2) smoothly enters the connecting pipe (Q). After the nozzle part (2) reaches the closed connection part (H), the bag body (29) is further expanded and firmly brought into pressure contact with the inner peripheral surface of the connection pipe (Q), so that the rotary gripping mechanism part (3A) To fix.
With the rotary gripping mechanism portion (3A) fixed, the tightening portion (15) allows the hose (1) to rotate together with the inner cylinder (17) while gripping the hose (1). This rotational movement is smooth because of the bearing (18).
For the assembly process of the hose (1), the inner cylinder (17) ensures the insertion of the hose (1) with the fastener device (4) attached to the tip, thereby improving the efficiency of the processing operation. Further, the tightening portion (15) can be assembled at any time by dividing into two, and is immediately assembled to the inner cylinder (17). The position of the hose (1) can be adjusted by gripping the rubber body (25) of the tightening portion (15), and the distance between the nozzle portion (2) and the rotary gripping mechanism portion (3A) can be adjusted.
The additional matter 1) of the main configuration conforms to the additional matter 1) of Invention 1.
In the additional item 2), the inner cylinder (17) of the rotary gripping mechanism (3A) can be assembled from the tip of the flexible pipe for high pressure water (1) equipped with the fastener device (7). The processing becomes more efficient, and the position of the nozzle portion (2) can be expanded by allowing the fastener device (7) to be pulled into the inner cylinder (17).
In the additional item 3), when the amount of water accompanying the high-pressure water injection in the space between the closed connection portion H and the front surface of the position fixing packer (3B) increases and the water pressure increases, the water is drained by the drain pipe (30).
本発明の管路の穿孔装置によれば、
１）耐高圧可撓性導水管（高圧ホース）は、所要の可撓性をもって接続管の屈曲に追従し、また高圧水を導通することは勿論、長尺をなし、かつ所定の剛性（捩じり剛性、軸方向剛性）を有するものであり、多様な機能を発揮する。すなわち、その捩じり剛性により該ホースの末端部での回動により先端のノズル部の回動がなされ、フレキシブルシャフト等の回動要素が省略され、回動機構の簡単化に寄与する。また、その軸方向剛性により該ホースの押込み力の伝達、及びノズル部２の噴射反力の位置保持機構部への伝達をなす。
２）高圧水に耐える専用の留め具装置が使用されるので、高圧水用のノズル部のホースの先端への取付け・取外しが可能となり、接続管の管径に応じた高圧水穿孔工事が実施でき、施工の対応性が拡大する。
３）第２発明によれば、位置保持機構部によりホースを介してノズル部の中心が保持される。すなわち、該位置保持機構部はその外側の位置固定パッカーがその袋体を介して内側の回転把持機構を接続管に固定し、回転把持機構ではホースが中心位置を保って回転可能に把持されるから、ホースの先端のノズル部の中心軸が接続管の中心に合致して配される。
４）更に第２発明によれば、留め具装置の取り付けられたホースへの位置保持機構部の組付け加工につき、２重筒部の中筒の内径を留め具装置の外径（最大径）よりも余裕を持たせることができ、ホースの先端からの挿入操作が容易となり、内筒の装着後の組付け加工が円滑に行われる。
５）第２発明では、位置保持機構部の締付け部ではホースの把持位置を調整することができ、また内筒内には留め具装置の後端が引入れ可能であり、留め具装置の後端から位置保持機構部の締付け部の距離によりノズル部の位置調整が可能である。
According to the pipe punching device of the present invention,
1) The high-pressure-resistant flexible water conduit (high-pressure hose) follows the bending of the connecting pipe with the required flexibility, and of course has a long length and has a predetermined rigidity (screw). It has torsional rigidity and axial rigidity) and exhibits various functions. That is, due to the torsional rigidity, the nozzle portion at the tip is turned by turning at the end of the hose, and the turning elements such as the flexible shaft are omitted, contributing to simplification of the turning mechanism. Moreover, the axial direction rigidity transmits the pushing force of the hose and the injection reaction force of the nozzle portion 2 to the position holding mechanism portion.
2) Since a dedicated fastener device that can withstand high pressure water is used, the nozzle for high pressure water can be attached to or detached from the tip of the hose, and high pressure water drilling work is carried out according to the pipe diameter of the connecting pipe. This will increase the compatibility of construction.
3) According to the second invention, the center of the nozzle part is held by the position holding mechanism part via the hose. That is, the position holding mechanism unit fixes the inner rotary gripping mechanism to the connecting pipe through the bag body by the outer position fixing packer, and the rotary gripping mechanism grips the hose so that it can rotate while maintaining the center position. Thus, the central axis of the nozzle portion at the tip of the hose is arranged so as to coincide with the center of the connecting pipe.
4) Further, according to the second invention, the inner diameter of the middle cylinder of the double cylinder portion is set to the outer diameter (maximum diameter) of the fastener device for assembling the position holding mechanism portion to the hose to which the fastener device is attached. More than that, the insertion operation from the tip of the hose becomes easy, and the assembling process after the inner cylinder is attached is smoothly performed.
5) In the second invention, the holding position of the hose can be adjusted at the tightening portion of the position holding mechanism portion, and the rear end of the fastener device can be retracted into the inner cylinder. The position of the nozzle portion can be adjusted by the distance from the end to the tightening portion of the position holding mechanism portion.
本発明の管路の高圧水穿孔装置の実施の形態を図面に基づいて説明する。
図１〜図５は本発明の管路の高圧水穿孔装置Ｓ（以下「穿孔装置」と略記する。）の一実施形態を示す。すなわち、図１は本管路の穿孔装置Ｓの全体の概略構成を示し、図２〜図５は本穿孔装置Ｓの各部の詳細構成を示す。また、図６は施工工事の状況を示す。
これらの図において、本穿孔装置Ｓの進行方向（図１、矢印イ）をもって、前部、後部とする。
An embodiment of a high-pressure water perforating apparatus for pipes according to the present invention will be described with reference to the drawings.
1 to 5 show an embodiment of a high-pressure water perforating apparatus S (hereinafter abbreviated as “perforating apparatus”) of a pipe according to the present invention. That is, FIG. 1 shows an overall schematic configuration of the main pipe punching device S, and FIGS. 2 to 5 show the detailed configuration of each part of the main punching device S. FIG. 6 shows the construction status.
In these drawings, the traveling direction (FIG. 1, arrow a) of the perforating apparatus S is defined as a front part and a rear part.
本管路の穿孔装置Ｓは、３つの主たる部分、すなわち高圧水用可撓管（ホース）１を介して連なる前部のノズル部２及び位置保持機構部３、後部の動力部４、からなる。 The main pipe perforating apparatus S includes three main parts, that is, a front nozzle part 2 and a position holding mechanism part 3 connected via a high-pressure water flexible pipe (hose) 1, and a rear power part 4. .
以下、各部の詳細構造について説明する。
高圧水用可撓管（ホース）１
高圧水用可撓管としてのホース１は、可撓（屈撓）性の長尺体をなし、高圧水を導通するとともに所要の剛性を有する。この可撓性は適度の長さにおいて曲げとして発揮されるものであり、またその剛性は、軸方向の力を伝達するとともに、周方向の捩じり剛性をもって回転力を伝達するべく要請される。このホース１の具体例として、ナイロン１２の内外管の間に金属補強層が介装されて屈曲自在とされた構成のもの、更には、合成樹脂製の管体の肉厚内に金属製螺旋コイルが一体に埋め込まれて屈曲自在とされた構成のものが挙げられる。
Hereinafter, the detailed structure of each part will be described.
Flexible tube (hose) for high pressure water 1
The hose 1 as a flexible pipe for high-pressure water is a flexible (flexible) long body that conducts high-pressure water and has a required rigidity. This flexibility is exhibited as a bend at an appropriate length, and its rigidity is required to transmit axial force and rotational force with circumferential torsional rigidity. . Specific examples of the hose 1 include a structure in which a metal reinforcing layer is interposed between inner and outer pipes of nylon 12 so that the hose 1 can be bent. Further, a metal spiral is formed within the thickness of a synthetic resin pipe. The thing of the structure by which the coil was embedded integrally and was made bendable is mentioned.
ノズル部２（図１、図２参照）
ノズル部（切断機構部）２は、ホース１の前端部にノズルヘッド６が留め具装置７を介して取り付けられてなる。
ノズルヘッド６は、前部の肉厚の円盤状体と後部の円柱状体とからなり、円盤状体には内部に導水通路６ａが形成され、前面に導水通路６ａに連通する噴射口６ｂを有し、導水通路６ａの後端の開口には円柱状体に連通するテーパー部６ｃが形成され、円柱状体には内面にねじが螺設されたねじ孔６ｄが形成されている。該ねじ孔６ｄはテーパー部６ｃに連通する。噴射口６ｂは平坦面をなす前面部６ｅの中心より放射状にかつ同心状を保って１又は複数（本実施形態では２）か所に配される。該噴射口６ｂは鉛直より若干の角度をもって外方に振られ（本実施形態では５°）、更に該噴射口６ｂの口径は０．１〜０．５ｍｍを採り、本実施形態では０．４ｍｍが採用される。また、円盤状体の前面部６ｅの中心には切頭円錐状の突起６ｆが、一体もしくは別体をもって、突設される。
なお、該ノズルヘッド６は鋼、アルミ等の金属製を採り、導水通路は孔加工により形成される。したがって、該ノズルヘッド６は比較的重量のあるものとなる。
そして、センターピン８が前記突起６ｅの前面に重ねて配される。センターピン８は、前部の細長な円錐状のピン部８ａ、中間のナット部８ｂ、後部のねじ杆部８ｃからなり、ピン部８ａ、ナット部８ｂ、ねじ杆部８ｃは中心軸上にある。該センターピン８は突起６ｅのねじ孔又はボルト挿通孔及びノズルヘッド６のねじ孔にねじ込んで取り付けられる。センターピン８とノズルヘッド６とは中心軸を共有する。
Nozzle part 2 (See FIGS. 1 and 2)
The nozzle part (cutting mechanism part) 2 is formed by attaching a nozzle head 6 to a front end part of a hose 1 via a fastener device 7.
The nozzle head 6 is composed of a thick disk-shaped body at the front part and a cylindrical body at the rear part. The disk-shaped body has a water guide passage 6a formed therein, and an injection port 6b communicating with the water guide passage 6a on the front surface. And a tapered portion 6c communicating with the cylindrical body is formed in the opening at the rear end of the water guide passage 6a, and the cylindrical body is formed with a screw hole 6d in which a screw is screwed on the inner surface. The screw hole 6d communicates with the tapered portion 6c. The injection ports 6b are arranged at one or a plurality (2 in the present embodiment) radially and concentrically from the center of the front surface portion 6e forming a flat surface. The injection port 6b is shaken outward at a slight angle from the vertical (5 ° in the present embodiment), and the diameter of the injection port 6b is 0.1 to 0.5 mm, and in this embodiment is 0.4 mm. Is adopted. Further, a truncated cone-shaped projection 6f is provided at the center of the front surface portion 6e of the disk-like body so as to be integral or separate.
The nozzle head 6 is made of a metal such as steel or aluminum, and the water guide passage is formed by drilling. Therefore, the nozzle head 6 is relatively heavy.
A center pin 8 is disposed on the front surface of the protrusion 6e. The center pin 8 is composed of an elongated conical pin portion 8a at the front portion, an intermediate nut portion 8b, and a screw flange portion 8c at the rear portion. The pin portion 8a, the nut portion 8b, and the screw flange portion 8c are on the central axis. . The center pin 8 is screwed into the screw hole or bolt insertion hole of the protrusion 6e and the screw hole of the nozzle head 6. The center pin 8 and the nozzle head 6 share a central axis.
留め具装置７は、高圧水用の専用の継手機構を有し、ホース１の前端部にはホース１を強固に固定（かしめ固定）する円筒金具９を有し、該円筒金具９に第１の接続金具（押当て金具）１０が一体に固定されている。該第１の接続金具１０は内部に導水通路１０ａを有し、基部（後部）にナット部１０ｂを有し、細径の円筒部１０ｃを介して先端のテーパー部１０ｄに至る。テーパー部１０ｄのテーパー面は、前記した円盤状体の導水通路６ａの入口端部のテーパー部６ｃのテーパー面に当接する。円筒部１０ｃの外周面にはねじ１０ｅが、全長もしくは基部１０ｂ側を残して、螺設される。
第２の接続金具（ねじ駒）１１は直円筒体をなし、内周にねじが螺設され、外周面は円筒面をなす。該接続金具１１は第１の接続金具１０の円筒部１０ｃのねじ１０ｅに螺合され、適宜位置に配される。
該留め具装置７の第３の接続金具（押込み金具）１２は、後部の大径部と前部の小径部との円筒体をなし、大径部はナット体１２ａをなし、小径部の外周面にはねじ１２ｂが螺設され、小径部の内周には段部１２ｃを介して前部の大径孔と後部の小径孔とが形成される。小径部の外周面のねじ１２ｂはノズル部２の円柱状体のねじ孔６ｄに螺合され、小径部の内周の大径孔は第２接続金具１１の外側に一定のすき間を存して緩嵌装され、段部１２ｃは第２接続金具１１の後端面に当接する。
該留め具装置７の組付けは、第１接続金具１０にその前部より第３接続金具１２を嵌装し、次いで第２接続金具１１を、第３接続金具１２の小径部の内周内に挿入しつつ、第１接続金具１０に適宜位置まで螺合させて組み付ける。第３接続金具１２のノズル部２のねじ孔６ｄへの螺合により、該第３接続金具１２は前進し、その段部１２ｃが第２接続金具１１を介して第１接続金具１０を前方へ押し込むことになる。
The fastener device 7 has a dedicated joint mechanism for high-pressure water. The hose 1 has a cylindrical fitting 9 for firmly fixing (caulking and fixing) the hose 1 to the front end of the hose 1. The connection fitting (pressing fitting) 10 is fixed integrally. The first connection fitting 10 has a water guide passage 10a inside, a nut portion 10b at a base portion (rear portion), and reaches a tapered portion 10d at the tip through a thin cylindrical portion 10c. The taper surface of the taper portion 10d abuts on the taper surface of the taper portion 6c at the inlet end of the water guide passage 6a. A screw 10e is screwed on the outer peripheral surface of the cylindrical portion 10c, leaving the entire length or the base portion 10b side.
The second connection fitting (screw piece) 11 has a right cylindrical body, a screw is screwed on the inner periphery, and the outer peripheral surface forms a cylindrical surface. The connection fitting 11 is screwed into the screw 10e of the cylindrical portion 10c of the first connection fitting 10 and is disposed at an appropriate position.
The third connection fitting (pushing fitting) 12 of the fastener device 7 has a cylindrical body of a rear large diameter portion and a front small diameter portion, the large diameter portion forms a nut body 12a, and the outer periphery of the small diameter portion. A screw 12b is screwed on the surface, and a front large-diameter hole and a rear small-diameter hole are formed on the inner periphery of the small-diameter portion via a step 12c. The screw 12 b on the outer peripheral surface of the small diameter portion is screwed into the screw hole 6 d of the cylindrical body of the nozzle portion 2, and the large diameter hole on the inner periphery of the small diameter portion has a certain clearance outside the second connection fitting 11. The stepped portion 12c comes into contact with the rear end surface of the second connection fitting 11 by being loosely fitted.
The fastening device 7 is assembled by fitting the third connection fitting 12 to the first connection fitting 10 from its front, and then connecting the second connection fitting 11 to the inner circumference of the small diameter portion of the third connection fitting 12. While being inserted, the first connecting fitting 10 is screwed to an appropriate position and assembled. By screwing the third connection fitting 12 into the screw hole 6 d of the nozzle portion 2, the third connection fitting 12 advances, and the stepped portion 12 c moves the first connection fitting 10 forward via the second connection fitting 11. Will push.
位置保持機構部３（図１、図３参照）
位置保持機構部３は、前記ノズル部２の後方位置で、ホース１回りに固定把持され、該ホース１の回転動を許容して取付け管（接続管）内に固定保持される機能を担う。
具体的には、内筒及び外筒との２重筒構成をなし、内筒に取り付けられる締付け部（押輪機構）を有する回転把持機構３Ａと、この回転把持機構３Ａを取付け管内に固定保持する位置固定パッカー３Ｂと、からなる。
Position holding mechanism 3 (see FIGS. 1 and 3)
The position holding mechanism section 3 is fixedly held around the hose 1 at a position behind the nozzle section 2 and has a function of allowing the hose 1 to rotate and being fixedly held in an attachment pipe (connection pipe).
Specifically, the rotary gripping mechanism 3A has a double cylinder configuration of an inner cylinder and an outer cylinder, and has a tightening portion (roller wheel mechanism) attached to the inner cylinder, and the rotary gripping mechanism 3A is fixedly held in the mounting pipe. The position fixing packer 3B.
((回転把持機構３Ａ))（図１、図３参照）
回転把持機構３Ａは、２重筒部１４と締付け部１５とからなる。
（２重筒部１４）
２重筒部１４は、長尺の直管をなす外筒１６と、該外筒１６内に配される内筒１７と、該外筒１６と内筒１７との間に装着される軸受１８との主要部からなる。
もっと詳しくは、外筒１６は、剛性を有する円筒体をなし、その内周面には前端より、溝１６ａ、段部１６ｂが形成されている。
内筒１７は、剛性を有する円筒体をなし、小径かつ短尺をもって該外筒１６内の前部に配され、その後端部に鍔部１７ａを有し、該鍔部１７ａにボルト挿通孔１７ｂが開設されている。ボルト挿通孔１７ｂは複数をもって円環状の鍔部１７ａに等間隔に開設される。本実施形態では、６箇所及び６０°間隔とされるが、この態様に限定されない。該内筒１７の外周面には外筒１６に対応して、前端より、溝１７ｃ、段部１７ｄが形成されている。上記したボルト挿通孔１７ｂには後記する締付け部１５との固定をなす取付けボルト１９が挿通される。
軸受１８は、適宜数（本実施形態では３）をもって前記外筒１６と内筒１７との間に、それらの段部１６ｂ，１７ｄに当接するまで挿入され、かつそれらの溝１６ａ，１７ｃにＣリング２０（外側Ｃリング２０ａ，内側Ｃリング２０ｂ）
を嵌装して装着されるこの軸受１８を介することにより内筒１７は外筒１６に対して回転自在となる。なお、本実施形態では軸受１８は３個配されるが、その個数に限定されない。
((Rotary gripping mechanism 3A)) (See FIGS. 1 and 3)
The rotary gripping mechanism 3 </ b> A includes a double cylinder portion 14 and a tightening portion 15.
(Double cylinder part 14)
The double cylinder portion 14 includes an outer cylinder 16 that is a long straight pipe, an inner cylinder 17 that is disposed in the outer cylinder 16, and a bearing 18 that is mounted between the outer cylinder 16 and the inner cylinder 17. And consists of the main parts.
More specifically, the outer cylinder 16 is a rigid cylindrical body, and a groove 16a and a step portion 16b are formed on the inner peripheral surface from the front end.
The inner cylinder 17 has a rigid cylindrical body and is arranged at the front portion in the outer cylinder 16 with a small diameter and a short length. The inner cylinder 17 has a flange portion 17a at the rear end portion thereof, and a bolt insertion hole 17b is formed in the flange portion 17a. It has been established. A plurality of bolt insertion holes 17b are provided at equal intervals in the annular flange portion 17a. In this embodiment, although it is set as 6 places and a 60 degree space | interval, it is not limited to this aspect. Corresponding to the outer cylinder 16, a groove 17 c and a stepped part 17 d are formed on the outer peripheral surface of the inner cylinder 17 from the front end. A mounting bolt 19 that is fixed to the tightening portion 15 described later is inserted into the bolt insertion hole 17b described above.
The bearings 18 are inserted between the outer cylinder 16 and the inner cylinder 17 with an appropriate number (3 in the present embodiment) until they contact the stepped portions 16b and 17d, and C is inserted into the grooves 16a and 17c. Ring 20 (outer C ring 20a, inner C ring 20b)
The inner cylinder 17 is rotatable with respect to the outer cylinder 16 through the bearing 18 that is fitted and mounted. In the present embodiment, three bearings 18 are arranged, but the number is not limited.
（締付け部１５）
締付け部１５は、前記２重筒部１４の内筒１７に連結され、その押輪機構の挟着作用により圧縮されるゴム体の内径が縮径してホース１を固定把持する。
詳しくは、固定輪２２、押輪２３及び締具（ボルト）２４より押輪機構が構成され、固定輪２２と押輪２３とは互いに対向し、それらの間に装着される締具２４の締込みによりゴム体２５への挟着作用がなされる。なお、図３は締具２４が未回動の仮想状態を示し、実際には外筒１６の嵌装された状態では既に回動締め込まれ、ゴム体２５の縮径がなされている。
固定輪２２は、二つ割の円環体をなし（すなわち二体が合して一つの円環体になる）、内径側の切頭円錐部２２ａと外径側のフランジ部２２ｂとからなり、当該円環体はホース１に余裕をもって嵌装される。円錐部２２ａの内面２２ｃは円錐面をなし、フランジ部２２ｂは、前面側に前記した内筒１７のボルト挿通孔１７ｂに対応するねじ孔２２ｄが螺設され、後面側に複数のねじ孔２２ｅが螺設される。ねじ孔２２ｅは本実施形態ではねじ孔２２ｄと位置を違え、かつ中心対称軸より４５°に４か所に形成されてなるが、この態様にのみ限定されるものではない。
押輪２３は、固定輪２２と対称構成を採り、固定輪２２と同様に２つ割をなすとともに、切頭円錐部２３ａ、フランジ部２３ｂ、円錐面状の内面２３ｃを有するが、前記した固定輪２２のねじ孔２２ｄに対応するねじ孔はなく、また前記したねじ孔２２ｅに対応してボルト挿通孔２３ｄが貫通状に開設されてなる。
締具２４は、ボルト頭部２４ａとボルト杆２４ｂとからなり、ボルト杆２４ｂを押輪２３のボルト挿通孔２３ｄから固定輪２２のねじ孔２２ｅに螺合装着される。
ゴム体２５は、二つ割の円環体をなし、押輪機構の固定輪２２と押輪２３との内面（傾斜面）２２ｃ、２３ｃに挟持される。このため、該ゴム体２５は断面が台形状をなし、前後の側面２５ａ、２５ｂが押輪機構の内面（傾斜面）２２ｃ、２３ｃに当接するとともに、外径側面２５ｃより内径側面２５ｄが長くなっている。
ゴム体２５は、適度の硬度を有し、通常にはウレタンゴム製の硬度５０〜６０のものが使用される。このものは、押輪機構の固定輪２２と押輪２３との内面（傾斜面）２２ｃ、２３ｃの挟着作用を受けて内径方向へ縮径され、ホース１を摩擦をもって挟着・把持する。更に、ゴム体２５は１つ割でもよい。
(Tightening part 15)
The tightening part 15 is connected to the inner cylinder 17 of the double cylinder part 14, and the inner diameter of the rubber body compressed by the clamping action of the push ring mechanism is reduced, so that the hose 1 is fixedly held.
More specifically, a pressing wheel mechanism is constituted by the fixed wheel 22, the pressing wheel 23, and the fastener (bolt) 24. The fixing wheel 22 and the pressing wheel 23 face each other, and rubber is tightened by the fastener 24 mounted between them. A clamping action to the body 25 is performed. 3 shows a virtual state in which the fastener 24 is not rotated. Actually, when the outer cylinder 16 is fitted, the rubber member 25 has already been rotationally tightened and the rubber body 25 has a reduced diameter.
The fixed ring 22 is divided into two toroids (that is, the two bodies are combined into one torus), and is composed of a truncated cone portion 22a on the inner diameter side and a flange portion 22b on the outer diameter side. The torus is fitted to the hose 1 with a margin. The inner surface 22c of the conical portion 22a has a conical surface, and the flange portion 22b has a screw hole 22d corresponding to the bolt insertion hole 17b of the inner cylinder 17 on the front surface side, and a plurality of screw holes 22e on the rear surface side. Screwed. In the present embodiment, the screw hole 22e has a position different from that of the screw hole 22d and is formed at four positions at 45 ° from the central symmetry axis. However, the present invention is not limited to this mode.
The pusher wheel 23 has a symmetrical configuration with the fixed wheel 22 and is divided into two parts like the fixed wheel 22 and has a truncated conical part 23a, a flange part 23b, and a conical inner surface 23c. There are no screw holes corresponding to the 22 screw holes 22d, and the bolt insertion holes 23d are formed in a penetrating manner corresponding to the screw holes 22e.
The fastener 24 includes a bolt head portion 24a and a bolt rod 24b. The bolt rod 24b is screwed into the screw hole 22e of the fixed wheel 22 from the bolt insertion hole 23d of the push wheel 23.
The rubber body 25 forms a split ring body and is sandwiched between inner surfaces (inclined surfaces) 22c and 23c of the fixed wheel 22 and the push wheel 23 of the push wheel mechanism. For this reason, the rubber body 25 has a trapezoidal cross section, the front and rear side surfaces 25a and 25b abut against the inner surfaces (inclined surfaces) 22c and 23c of the pusher wheel mechanism, and the inner diameter side surface 25d is longer than the outer diameter side surface 25c. Yes.
The rubber body 25 has an appropriate hardness, and usually a urethane rubber having a hardness of 50 to 60 is used. This is subjected to the clamping action of the inner surfaces (inclined surfaces) 22c and 23c of the stationary wheel 22 and the pressing wheel 23 of the pressing wheel mechanism, and is reduced in the inner diameter direction, and the hose 1 is clamped and gripped with friction. Further, the rubber body 25 may be divided by one.
当該締付け部１５は、外筒１６の装着のない状態で、２重筒部１４の内筒１７のボルト挿通孔１７ｂと当該固定輪２２のねじ孔２２ｄとを合致させ、両孔１７ｂ、２２ｄへ嵌装される取付けボルト１９の螺合をもって２重筒部１４内へ取り付けられる。
また、締具２４の締込みにより押輪２３は固定輪２２側に押し込まれ、該固定輪２２と押輪２３との内面（傾斜面）２２ｃ、２２ｃに挟持されたゴム体２５は、その前後側面２５ａ、２５ｂが内面（傾斜面）２２ｃ、２３ｃからの挟圧作用を受けて内径を縮径させる。
これにより、ゴム体２５はホース１の外周面を把持し、同時にノズル部２の位置決めをなす。すなわち、ノズル部２の留め具装置７の円筒金具９の後端面が締付け部１５の固定輪２２の前端に当接する位置（Ｌ＝０、図１参照）を最短とする。
The tightening portion 15 aligns the bolt insertion hole 17b of the inner cylinder 17 of the double cylinder portion 14 and the screw hole 22d of the fixed ring 22 with the outer cylinder 16 not attached, to both holes 17b and 22d. The mounting bolt 19 to be fitted is screwed into the double cylinder portion 14.
Further, the pusher wheel 23 is pushed into the fixed wheel 22 side by tightening the fastener 24, and the rubber body 25 sandwiched between the inner surfaces (inclined surfaces) 22c and 22c of the fixed wheel 22 and the pusher wheel 23 has its front and rear side surfaces 25a. , 25b receive a pinching action from the inner surfaces (inclined surfaces) 22c, 23c to reduce the inner diameter.
Thereby, the rubber body 25 holds the outer peripheral surface of the hose 1 and simultaneously positions the nozzle portion 2. That is, the position where the rear end surface of the cylindrical fitting 9 of the fastening device 7 of the nozzle portion 2 contacts the front end of the fixed ring 22 of the tightening portion 15 (L = 0, see FIG. 1) is the shortest.
((位置固定パッカー３Ｂ))（図１参照）
位置固定パッカー３Ｂは、回転把持機構３Ａを取付管（接続管）内に自在に固定する機能をなし、図１に断面形状をもって示すとおり、回転把持機構３Ａの外筒１６の外周に被嵌される薄肉の把持筒２７、把持筒２７を外筒１６に固定する固定バンド２８、把持筒２７に一体に固定される袋体２９、袋体２９に貫通状に配される水抜き管３０、からなる。
詳しくは、把持筒２７は、若干の弾性を示す耐引張り材の薄肉筒よりなり、その内周長は回転把持機構３Ａの外筒１６の外周長に実質的に等しく、該外筒１６の外周に密着して被嵌される。固定バンド２８は、この把持筒２７の前後をその締付け作用をもって回転把持機構３Ａの外筒１６に固定する。
袋体２９は、把持筒２７回りに一体に固定され、環状体をなし、その後部の通気口２９ａより内部に充填される空気（圧縮空気）をもって膨張・収縮され、膨張状態においては外径が取付け管（接続管）の内径よりも大きくなる。３２はこの袋体２９の通気口２９ａに接続される空気導入用のホースであり、外部にまで引き出され、圧縮空気の供給部に接続される。なお、袋体２９内への充填は空気に替え、水などの液体であってもよい。
水抜き管３０は、剛性管よりなり、袋体２９を前後に貫通して配される。該水抜き管３０は、複数本が通常には袋体２９に等間隔に配されるが、その間隔及び配置は特に限定されない。また該水抜き管３０は１本であってもよい。
((Position fixed packer 3B)) (See Fig. 1)
The position fixing packer 3B has a function of freely fixing the rotary gripping mechanism 3A in the attachment pipe (connection pipe), and is fitted on the outer periphery of the outer cylinder 16 of the rotary gripping mechanism 3A as shown in a sectional shape in FIG. A thin gripping cylinder 27, a fixing band 28 that fixes the gripping cylinder 27 to the outer cylinder 16, a bag body 29 that is integrally fixed to the gripping cylinder 27, and a drain pipe 30 that is arranged in a penetrating manner in the bag body 29. Become.
Specifically, the gripping cylinder 27 is formed of a thin tube of a tensile-resistant material that exhibits some elasticity, and the inner peripheral length thereof is substantially equal to the outer peripheral length of the outer cylinder 16 of the rotary gripping mechanism 3A. It is closely fitted to the cover. The fixing band 28 fixes the front and rear of the gripping cylinder 27 to the outer cylinder 16 of the rotary gripping mechanism 3A with its tightening action.
The bag body 29 is integrally fixed around the gripping cylinder 27, forms an annular body, and is inflated and contracted by air (compressed air) filled inside from the rear vent hole 29a. It becomes larger than the inner diameter of the mounting pipe (connection pipe). Reference numeral 32 denotes an air introduction hose connected to the vent hole 29a of the bag body 29, which is pulled out to the outside and connected to a compressed air supply unit. The bag 29 may be filled with a liquid such as water instead of air.
The drainage pipe 30 is made of a rigid pipe and is disposed so as to penetrate the bag body 29 in the front-rear direction. A plurality of the drain pipes 30 are usually arranged at equal intervals on the bag body 29, but the interval and arrangement are not particularly limited. The drain pipe 30 may be one.
動力部４（図１、図４、図５参照）
動力部４は、前記ホース１の後端部に接続され、該ホース１を回動するとともに、該回転動されるホース１内に高圧水を供給する。
詳しくは、動力部４は、駆動モータ３２に連動する高圧ポンプ３３を備え、該高圧ポンプ３３は貯水槽（図示せず）からの水の供給を受けるとともに駆動モータ３２の駆動力により高圧の水流を吐出し、その吐出口３３ａに公知の回転管継手３４を介してホース１の後端との接続がなされる。
ホース１には、更に、回転を付与する回転駆動部が動力部４の一部として付加される。
図５に機械駆動による回転駆動部５の一例を示す。すなわち、動力部４に近接して二つ割の取付け環３６をホース１にその両端部のフランジ相互間に締具（締付けボルト・ナット）３７の締込みをもって固定し、先に挿入した大歯車３８を取付け環３６の前端部フランジ３６ａに当接させ、両者（取付け環３６と大歯車３８）の取付け孔間に装着した取付けボルト・ナット３９を締め込んで大歯車３８を取り付ける。大歯車３８の円孔３８ａはホース１の径よりも大きく、回転管継手３４へのホース１の接続に先立って、ホース１の端部から容易に嵌装される。一方、大歯車３８に噛合する小歯車４０は駆動モーター４１の駆動軸４１ａに取り付けられ、減速機構付き駆動モーター４１の駆動により小歯車４０を介して大歯車３８は回転駆動される。図において、Ｗは水流を示す。
この回転駆動部５において、取付け環３６と大歯車３８との対応するの取付け孔は、例えば、取付け環３６の取付け孔は長孔とされ、大歯車３８の取付け孔は小円孔とされ、ワッシャーを介して、又は介さずして、両者（取付け環３６と大歯車３８）の位置調整が可能となっている。また、駆動モーターには減速機構が組み込まれ、ホース１の微速回転を確実にする。
Power unit 4 (see FIGS. 1, 4 and 5)
The power unit 4 is connected to the rear end of the hose 1, rotates the hose 1, and supplies high-pressure water into the hose 1 that is rotated.
Specifically, the power unit 4 includes a high-pressure pump 33 that is interlocked with the drive motor 32, and the high-pressure pump 33 receives supply of water from a water storage tank (not shown) and a high-pressure water flow by the driving force of the drive motor 32. The discharge port 33a is connected to the rear end of the hose 1 via a known rotary joint 34.
The hose 1 is further provided with a rotation drive unit that imparts rotation as a part of the power unit 4.
FIG. 5 shows an example of the rotational drive unit 5 by mechanical drive. That is, the split ring 36 adjacent to the power unit 4 is fixed to the hose 1 between the flanges at both ends thereof by fastening fasteners (clamping bolts and nuts) 37, and the large gear previously inserted is fixed. 38 is brought into contact with the front end flange 36a of the mounting ring 36, and the large gear 38 is mounted by tightening the mounting bolts and nuts 39 mounted between the mounting holes of both (the mounting ring 36 and the large gear 38). The circular hole 38 a of the large gear 38 is larger than the diameter of the hose 1 and is easily fitted from the end of the hose 1 prior to the connection of the hose 1 to the rotary fitting 34. On the other hand, the small gear 40 meshing with the large gear 38 is attached to the drive shaft 41a of the drive motor 41, and the large gear 38 is rotationally driven via the small gear 40 by the drive of the drive motor 41 with a speed reduction mechanism. In the figure, W indicates a water flow.
In the rotation drive unit 5, the corresponding mounting holes of the mounting ring 36 and the large gear 38 are, for example, the mounting hole of the mounting ring 36 is a long hole, and the mounting hole of the large gear 38 is a small circular hole. The position of both (the attachment ring 36 and the large gear 38) can be adjusted with or without a washer. In addition, a speed reduction mechanism is incorporated in the drive motor to ensure the slow rotation of the hose 1.
その余の設備
上記の穿孔装置Ｓに付加して、以下の該穿孔装置Ｓの附属設備が適宜使用される。
（空気圧縮機）
前記した位置固定パッカー３Ｂの袋体２９への空気導入のため、地上において空気圧供給装置としての空気圧縮機（図示せず）が設置され、送気用ホース３２の他端部に接続される。
（空気吸引機）
位置固定パッカー３Ｂの袋体２９内の空気吸引のため、地上において空気吸引機（図示せず）が設置され、送気用ホース３２の他端部に接続される。なお、本空気吸引機は必要に応じて使用され、本発明において必須のものではない。
In addition to the above-described perforating apparatus S, the following equipment attached to the perforating apparatus S is appropriately used.
(air compressor)
In order to introduce air into the bag body 29 of the above-described fixed position packer 3B, an air compressor (not shown) as an air pressure supply device is installed on the ground and connected to the other end of the air supply hose 32.
(Air suction machine)
An air suction machine (not shown) is installed on the ground and connected to the other end of the air supply hose 32 for air suction in the bag 29 of the fixed position packer 3B. In addition, this air suction machine is used as needed and is not essential in the present invention.
諸元
本実施形態の管路の穿孔装置Ｓの諸元の一例を示す。
水圧は超高圧水域の１００ＭＰａ（メガパスカル）〜２００ＭＰａが適用される。耐圧ホース１は外径が１５．２ｍｍ、内径が８．０ｍｍのものが使用され、このものの最小曲げ半径は１６．５ｃｍを採る。ノズルヘッド６の噴射口６ｂの口径は０．４ｍｍを採る。位置保持機構部において、内筒１７は内径３１ｍｍを採る。
It shows an example of specifications of the punching device S of the conduits specifications embodiment.
The water pressure is 100 MPa (megapascal) to 200 MPa in an ultra-high pressure water region. The pressure hose 1 having an outer diameter of 15.2 mm and an inner diameter of 8.0 mm is used, and the minimum bending radius thereof is 16.5 cm. The diameter of the ejection port 6b of the nozzle head 6 is 0.4 mm. In the position holding mechanism, the inner cylinder 17 has an inner diameter of 31 mm.
組立て
以下、ホース１への位置保持機構部３の組付けについて述べる。
１）先端に留め具装置７（円筒金具７、第１の接続金具（押当て金具）１０、第２の接続金具（ねじ駒）１１、第３の接続金具（押込み金具）１２を含む）を取り付けたホース１を、分解された位置保持機構部３の回転把持機構３Ａの２重筒部１４の内筒１７内に挿入する。このとき、留め具装置７の最大外径は２重筒部１４の内筒１７の内径よりも小さく設定されているので、格別の分解作業を要することなく容易になされる。
２）次いで、該内筒１７の後に、その鍔部１７ａを介して締付け部１５を組み付ける。すなわち、鍔部１７ａのボルト挿通孔１７ｂと締付け部１５の固定輪２２のねじ孔２２ｄとを一致させ、取付けボルト１９を回動螺合して固定する。
この状態で、ゴム体２５を挟み込みつつ、締具２４をもって押輪２３を固定輪２２に取り付ける。すなわち、固定輪２２のフランジ２２ｂのねじ孔２２ｅと押輪２３のフランジ部２３ｂのボルト挿通孔２３ｄとを合致させ、締具２４を挿通螺合して取り付ける。
３）締具２４を更に回動締め込んで押輪２３を前進させ、固定輪２２と押輪２３とのテーパー面２２ｅ，２３ｃによりゴム体２５を挟圧し、該ゴム体２５の内径を縮小させてホース１を強固に把持する。このとき、留め具装置７の円筒金具９の後端面と締付け部１５の固定輪２２の前端との距離Ｌ（図１参照）の長さを調整して、後で取り付けられるノズル部２の出入長さの調整をなす。
４）以上の組立て体（留め具装置７付きホース１、内筒１７、締付け部１５）に外筒１６を嵌装させ、内筒１７と外筒１６との前端を揃え、軸受１８を内筒１７と外筒１６との空間部に挿入し、Ｃリング２０ａ，２０ｂを溝１６ａ，１７ｃに嵌め込んで軸受１８を固定する。
５）更に、外筒１６に位置固定パッカー３Ｂを組み付ける。すなわち、外筒１６に袋体２９を一体に組み付けた把持筒２７を被嵌させ、固定バンド２８をもって固定する。これにより、ノズル部２と位置保持機構部３とが一体に組み付けられる。
Hereinafter, assembly of the position holding mechanism 3 to the hose 1 will be described.
1) A fastener device 7 (including a cylindrical fitting 7, a first connecting fitting (pressing fitting) 10, a second connecting fitting (screw piece) 11, and a third connecting fitting (pushing fitting) 12) at the tip. The attached hose 1 is inserted into the inner cylinder 17 of the double cylinder part 14 of the rotary gripping mechanism 3A of the disassembled position holding mechanism part 3. At this time, since the maximum outer diameter of the fastener device 7 is set smaller than the inner diameter of the inner cylinder 17 of the double cylinder portion 14, it can be easily performed without requiring any special disassembly work.
2) Next, after the inner cylinder 17, the tightening portion 15 is assembled through the flange portion 17a. That is, the bolt insertion hole 17b of the flange portion 17a and the screw hole 22d of the fixed ring 22 of the tightening portion 15 are aligned, and the mounting bolt 19 is rotationally screwed and fixed.
In this state, the pusher wheel 23 is attached to the fixed wheel 22 with the fastener 24 while sandwiching the rubber body 25. That is, the screw hole 22e of the flange 22b of the fixed ring 22 and the bolt insertion hole 23d of the flange portion 23b of the press ring 23 are matched, and the fastener 24 is inserted and screwed.
3) The fastener 24 is further rotationally tightened to advance the pusher wheel 23, the rubber body 25 is clamped by the tapered surfaces 22e and 23c of the fixed wheel 22 and the pusher wheel 23, and the inner diameter of the rubber body 25 is reduced to reduce the hose. Hold 1 firmly. At this time, the length of the distance L (see FIG. 1) between the rear end surface of the cylindrical fitting 9 of the fastening device 7 and the front end of the fixed ring 22 of the tightening portion 15 is adjusted, so that the nozzle portion 2 to be attached later is moved in and out. Adjust the length.
4) The outer cylinder 16 is fitted to the above assembly (the hose 1 with the fastening device 7, the inner cylinder 17, and the fastening portion 15), the front ends of the inner cylinder 17 and the outer cylinder 16 are aligned, and the bearing 18 is connected to the inner cylinder. The bearing 18 is fixed by inserting the C-rings 20a and 20b into the grooves 16a and 17c.
5) Further, the position fixing packer 3B is assembled to the outer cylinder 16. That is, the gripping cylinder 27 in which the bag body 29 is integrally assembled with the outer cylinder 16 is fitted and fixed with the fixing band 28. Thereby, the nozzle part 2 and the position holding mechanism part 3 are assembled | attached integrally.
管路内の穿孔工事
本切断装置Ｓを使用して管路内の穿孔工事は、以下のようになされる。
図６は本穿孔工事が実施される下水道管渠における取付け管の接続部への適用例を示す。図において、Ｐは地中に設置された下水道用管渠すなわち下水道本管、Ｒは該下水道本管Ｐ内に施されたライニング管、Ｔは地表部に配される雨水枡（もしくは汚水枡）、Ｕは地表部の路面、Ｖは歩道部である。雨水枡Ｔと下水道本管Ｐとは取付け管Ｑをもって繋がれている。Ｈは取付け管Ｑと下水道本管Ｐとの閉塞接続部、Ｉは取付け管Ｑと雨水枡Ｔとの接続口である。この取付け管Ｑは下水道本管Ｐの直近部で直交部Ｊをもって取り付けられている。
なお、本発明での主管は当該工事例図での下水道本管Ｐに、接続管は取付け管Ｑに対応する。
Drilling work in the pipeline Drilling work in the pipeline using the cutting device S is performed as follows.
FIG. 6 shows an example of application to a connecting portion of a mounting pipe in a sewer pipe where this drilling work is carried out. In the figure, P is a sewer pipe installed in the ground, that is, a sewer main, R is a lining pipe provided in the sewer main P, and T is a rainwater tank (or sewage tank) disposed on the surface. , U is the road surface of the surface, and V is the sidewalk. The storm sewer T and the sewer main P are connected by a mounting pipe Q. H is a closed connection part between the attachment pipe Q and the sewer main pipe P, and I is a connection port between the attachment pipe Q and the rainwater tank T. This attachment pipe Q is attached with an orthogonal part J in the immediate vicinity of the sewer main pipe P.
The main pipe in the present invention corresponds to the sewer main pipe P in the construction example diagram, and the connecting pipe corresponds to the mounting pipe Q.
図６では、取付け管Ｑの下水道本管Ｐへの取付け態様は直交状となっているが、急傾斜の取付け態様も含むものである。
そして、図ではライニング管Ｒが下水道本管Ｐ内に施工された直後の状態を示し、取付け管Ｑと下水道本管Ｐとは閉塞された状態すなわち閉塞接続部Ｈとなっている。
In FIG. 6, the attachment manner of the attachment pipe Q to the sewer main pipe P is orthogonal, but includes a steep inclination attachment manner.
And the figure shows the state immediately after the lining pipe R is constructed in the sewer main pipe P, and the attachment pipe Q and the sewer main pipe P are in a closed state, that is, a closed connection portion H.
以下、施工手順に従って説明する。
地上において、高圧ポンプ、空気圧縮機、及び駆動源（電動あるいは油圧モータ、水タンク）が用意される。
(1) 地上において、位置保持機構部３を装着したホース１を用意し、該位置保持機構部３のパッカー３Ｂの袋体２９から延設された送気用ホース３２に空気圧縮機（コンプレッサー）を接続する。更に、該ホース１に留め具装置７を介してノズル部２を装着する。ノズル部２は取付け管Ｑの内径に応じたものが選ばれる。また、このとき、取付け管Ｑの接続部の直交部分の状況が予め分かり、直交部分Ｊが短い場合はＬが短くされ、直交部分Ｊが長い場合はＬを長くされている。
留め具装置７を介するノズル部２の装着は、ホース１の先端において第３の接続金具（押込み金具）１２をそのねじ孔１２ｂをノズルヘッド６のねじ孔６ｄへ螺合し、その回動締込みにより段部１２ｃを介して第２の接続金具（ねじ駒）１１を前方へ押し込む。これにより、第１の接続金具（押当て金具）１０の先端のテーパー部１０ｄがノズルヘッド６のテーパー部６ｃに押し当てられ、両テーパー面が密着し、強固な水密性を保持する。
Hereinafter, it demonstrates according to a construction procedure.
On the ground, a high-pressure pump, an air compressor, and a drive source (electric or hydraulic motor, water tank) are prepared.
(1) On the ground, a hose 1 equipped with the position holding mechanism 3 is prepared, and an air compressor (compressor) is supplied to an air supply hose 32 extending from the bag 29 of the packer 3B of the position holding mechanism 3. Connect. Further, the nozzle portion 2 is attached to the hose 1 via the fastener device 7. The nozzle portion 2 is selected according to the inner diameter of the mounting pipe Q. At this time, the situation of the orthogonal portion of the connecting portion of the attachment pipe Q is known in advance, L is shortened when the orthogonal portion J is short, and L is lengthened when the orthogonal portion J is long.
The nozzle portion 2 is mounted via the fastening device 7 by screwing the third connecting fitting (pressing fitting) 12 at the tip of the hose 1 with the screw hole 12b into the screw hole 6d of the nozzle head 6, The second connecting fitting (screw piece) 11 is pushed forward through the step portion 12c. As a result, the tapered portion 10d at the tip of the first connecting fitting (pressing fitting) 10 is pressed against the tapered portion 6c of the nozzle head 6, and both tapered surfaces are in close contact with each other, thereby maintaining strong water tightness.
(2) 上記の先端にノズル部２及び位置保持機構部３を装着したホース１を、手作業をもって地上より雨水桝Ｔの接続口Ｉより取付け管Ｑ内に挿入し、その先端のノズル部２を閉塞接続部Ｈまで進入させる。この挿入作業中、空気圧縮機の駆動により位置保持機構部３のパッカー３Ｂの袋体２９はその内圧をもって取付け管Ｑの内径よりもやや小さ目にされ、取付け管Ｑ内の進入の案内をなし、取付け管Ｑ内の進入が円滑になされ、先端のノズル部２も中心位置を保って取付け管Ｑ内を進入する。なお、空気圧縮機に替え、空気吸引機を使用してパッカー３Ｂの袋体２９の内圧を負圧にし、袋体２９の径を縮径する態様を採ることもできる。
ホース１の可撓性は取付け管Ｑの曲がりに良好に対応し、本切断装置Ｓの取付け管Ｑ内の進入を円滑になす。また、ホース１の軸方向剛性は地上からの押込み力をノズル部２に伝達する。
ノズル部２及び位置保持機構部３は取付け管Ｑの曲がりを経由して最後に直交部Ｊに至り、直交部Ｊ内に進入する。
ノズル部２の先端のセンターピン８が閉塞接続部Ｈに当接するとき、この挿入作業は停止される。センターピン８は閉塞接続部Ｈの中心もしくは中心近傍に当接する。
(2) The hose 1 fitted with the nozzle part 2 and the position holding mechanism part 3 at the tip is manually inserted into the attachment pipe Q from the connection port I of the rain gutter T from the ground, and the nozzle part 2 at the tip is provided. To the closed connection part H. During this insertion work, the bag 29 of the packer 3B of the position holding mechanism unit 3 is made slightly smaller than the inner diameter of the mounting pipe Q by the driving of the air compressor, and guides the entry into the mounting pipe Q. The entry into the attachment pipe Q is made smooth, and the nozzle portion 2 at the tip also enters the attachment pipe Q while maintaining the center position. In addition, it can replace with an air compressor and can also take the aspect which makes the internal pressure of the bag body 29 of the packer 3B a negative pressure, and reduces the diameter of the bag body 29 using an air suction machine.
The flexibility of the hose 1 corresponds well to the bending of the attachment pipe Q, and makes the entry of the cutting device S into the attachment pipe Q smooth. Further, the axial rigidity of the hose 1 transmits the pushing force from the ground to the nozzle portion 2.
The nozzle part 2 and the position holding mechanism part 3 finally reach the orthogonal part J via the bending of the attachment pipe Q and enter the orthogonal part J.
When the center pin 8 at the tip of the nozzle portion 2 comes into contact with the closing connection portion H, this insertion operation is stopped. The center pin 8 abuts on the center of the closing connection portion H or near the center.
(3) 位置固定パッカー３Ｂの袋体２９に空気圧縮機の駆動により更に圧縮空気を導入し、袋体２９を膨張させ、取付け管Ｑの内面に圧接させて固定する。これにより、位置保持機構部３は中心位置にホース１を回転可能に把持し、取付け管Ｑ内に固定される。 (3) Compressed air is further introduced into the bag body 29 of the fixed position packer 3B by driving the air compressor, the bag body 29 is expanded, and is pressed against the inner surface of the attachment pipe Q and fixed. As a result, the position holding mechanism 3 grips the hose 1 at the center position so as to be rotatable, and is fixed in the attachment pipe Q.
(4) 地上において、ホース１の端部を動力部４の回転継手３４を介してポンプ３３に接続する。同時に、ポンプ３３に連動する駆動モータ３２、水タンクも接続される。更に、回転駆動部５の組付けもなされ、大歯車３８へ連動する駆動モータ４１の取付けもなされる。 (4) On the ground, the end of the hose 1 is connected to the pump 33 via the rotary joint 34 of the power unit 4. At the same time, a drive motor 32 and a water tank interlocked with the pump 33 are also connected. Further, the rotary drive unit 5 is assembled, and the drive motor 41 linked to the large gear 38 is also attached.
(5) 動力部４及び回転駆動部５を駆動し、ホース１を介して高圧水をノズル部２に送るとともにホース１に回転を付与する。ホース１は位置保持機構部３において、軸受１８を介して回転のみを許容して固定されており、ホース１の回転とともにノズル部２もセンターピン８を中心として回転し、かつノズル部２の噴射口６ｂより高圧水（例えば、２００ＭＰａ）が噴出し、閉塞接続部Ｈを穿孔する。
回転は微速でなされ、噴射口６ｂから高圧水が噴出され、閉塞接続部Ｈを所定の径の軌跡をもって穿孔し、仕上げ面のよい穿孔作用をなす。この穿孔中、噴射口６ｂから高圧水の反力は、位置固定パッカー３Ｂの取付け管Ｑへの押付け力（摩擦力）をもって対抗する。また、噴射水がノズル部２回りに充満し、更に位置保持機構部３に至り、該位置保持機構部３に圧力を及ぼすとき、パッカー３Ｂの袋体２９に貫通状に配される水抜き管３０によって排水され、圧力の高まり（過剰圧）を防止する。
(5) The power unit 4 and the rotation drive unit 5 are driven to send high-pressure water to the nozzle unit 2 through the hose 1 and to rotate the hose 1. The hose 1 is fixed in the position holding mechanism part 3 by allowing only rotation through a bearing 18, and the nozzle part 2 also rotates around the center pin 8 along with the rotation of the hose 1, and the injection of the nozzle part 2 High-pressure water (for example, 200 MPa) is ejected from the opening 6b to perforate the closing connection portion H.
The rotation is performed at a very low speed, and high-pressure water is ejected from the ejection port 6b, and the closing connection portion H is punctured with a trajectory having a predetermined diameter, thereby achieving a piercing action with a good finished surface. During this drilling, the reaction force of the high-pressure water from the injection port 6b counters with the pressing force (frictional force) against the mounting pipe Q of the position fixing packer 3B. Further, when the spray water fills around the nozzle portion 2 and further reaches the position holding mechanism portion 3 and exerts pressure on the position holding mechanism portion 3, a drain pipe arranged in a penetrating manner in the bag body 29 of the packer 3B. 30 to prevent pressure buildup (excessive pressure).
(6) ノズル部２の半回転をもって閉塞接続部Ｈへの穿孔がなされると、パッカー３Ｂの袋体２９を減圧して該袋体２９の径を縮小し、位置保持機構部３の取付け管Ｑからの固定を開放し、地上部において手作業にてホース１を引き戻し、本ノズル部２及び位置保持機構部３を装着したホース１を取付け管Ｑから引き上げて本穿孔工事を終了する。 (6) When the nozzle part 2 is perforated to the closing connection part H by half rotation, the bag body 29 of the packer 3B is depressurized to reduce the diameter of the bag body 29, and the mounting pipe of the position holding mechanism part 3 The fixing from Q is released, the hose 1 is manually pulled back on the ground, the hose 1 equipped with the main nozzle part 2 and the position holding mechanism part 3 is pulled up from the attachment pipe Q, and the main drilling work is completed.
（本実施形態の効果）
以上のように、本実施形態の高圧水穿孔装置Ｓによれば、以下の効果を有する。
１）本耐高圧ホースすなわち耐高圧可撓性導水管１は、高圧水を導通することは勿論、長尺をなし、かつ所定の剛性（捩じり剛性、軸方向剛性）を有するものであり、多様な機能を発揮する。すなわち、その捩じり剛性により該ホース１の末端部での回動により先端のノズル部２の回動がなされ、フレキシブルシャフト等の回動要素が省略され、回動機構の簡単化に寄与する。また、その軸方向剛性により該ホース１の押込み力の伝達、及びノズル部２の噴射反力の位置保持機構部３への伝達をなす。
２）高圧水に耐える専用の留め具装置７が使用されるので、高圧水用のノズル部２のホース１の先端への取付け・取外しが自在であり、取付け管Ｑの管径に応じた高圧水穿孔工事が実施でき、施工の対応性が拡大する。
すなわち、留め具装置７は、ねじ、ナットの形成された円筒体を基体とし、ノズル部へのねじ込み操作により該円筒体のテーパー面をノズル部のテーパー面に当接させてなる継手構成を採ることにより、高圧水に耐える所期の作用を発揮するものである。
３）位置保持機構部３によりホース１を介してノズル部２の中心が保持される。すなわち、該位置保持機構部３はその外側の位置固定パッカー部３Ｂがその内側の回転把持機構３Ａを取付け管Ｑに固定し、回転把持機構３Ａではホース１が中心位置を保って回転可能に把持されるから、ホース１の先端のノズル部２の中心軸が取付け管Ｑの中心に合致される。
４）留め具装置７の取り付けられたホース１への位置保持機構部３の組付け加工につき、位置保持機構部３の各部材は分解可能なものとなっており、先ず２重筒部１４の中筒１７の内径が留め具装置７のナット（最大径）よりも余裕を持ったものとされており、ホース１の先端からの挿入操作が容易となり、２重筒部１４の装着後の組付け加工（締付け部１５の組付け、軸受１８の組付け、外筒１６の挿入・固定等）が円滑に行われる。
５）位置保持機構部３の内筒１７内には留め具装置７が挿通自在であり、したがって、留め具装置７の円筒金具９の後端が位置保持機構部３の締付け部１５に当接する位置にまで引き入れることができ、該円筒金具９の後端から位置保持機構部３の締付け部１５の前端までの距離Ｌ（図１参照）によりノズル部２の位置調整が可能である。
すなわち、組立て加工時において、ノズル部２を位置保持機構部３から引離して取り付ける場合には留め具装置７の距離Ｌを大きく採り、締付け部１５を締め込んでホース１を固定し、その後ノズル部２のノズルヘッド６を装着する。また、ノズル部２を位置保持機構部３に引き込んで取り付ける場合には留め具装置７の距離Ｌを０又は小さく採り、締付け部１５を締め込んで固定する。また、現場にてノズル部２の位置調整をする場合には、ホース１を固定していた締付け部１５の締具２４を一旦緩め、距離Ｌを調整し、その後締付け部１５の締具２４を締め込んで再びホース１を固定する。
６）ノズル部２のノズルヘッド６を交換する場合には、既に取り付けられているノズルヘッド６につき、ホース１を固定していた締付け部１５の締具２４を緩め、ノズル部２の留め具装置７を位置保持機構部３内から引き出し、留め具装置７のナット部１２ａ，１０ｂを緩めて当該ノズルヘッド６を取り外す。次いで、新たなノズルヘッド６を留め具装置７のナット部１２ａ，１０ｂを締め込んで取り付け、ノズル部２を位置保持機構部３内に引き込み、締付け部１５の締具２４を締め付けてホース１を固定する。
(Effect of this embodiment)
As described above, according to the high-pressure water punching apparatus S of the present embodiment, the following effects are obtained.
1) The high-pressure resistant hose, ie, the high-pressure flexible water conduit 1 is not only conducting high-pressure water but also having a long length and a predetermined rigidity (torsional rigidity, axial rigidity). , Demonstrate a variety of functions. That is, due to the torsional rigidity, the nozzle portion 2 at the tip is rotated by the rotation at the end portion of the hose 1, and a rotating element such as a flexible shaft is omitted, contributing to simplification of the rotating mechanism. . Further, the axial direction rigidity transmits the pushing force of the hose 1 and the injection reaction force of the nozzle portion 2 to the position holding mechanism portion 3.
2) Since a dedicated fastening device 7 that can withstand high pressure water is used, the nozzle portion 2 for high pressure water can be attached to and detached from the tip of the hose 1 and the high pressure according to the pipe diameter of the attachment pipe Q Water drilling work can be carried out, and the compatibility of construction will be expanded.
That is, the fastener device 7 employs a joint structure in which a cylindrical body formed with screws and nuts is used as a base, and the tapered surface of the cylindrical body is brought into contact with the tapered surface of the nozzle portion by screwing operation into the nozzle portion. In this way, the desired effect of withstanding high-pressure water is exhibited.
3) The center of the nozzle part 2 is held by the position holding mechanism part 3 through the hose 1. That is, the position holding mechanism unit 3 has an outer position fixing packer unit 3B that fixes the inner rotary gripping mechanism 3A to the mounting pipe Q, and the rotary gripping mechanism 3A grips the hose 1 so that it can rotate while maintaining the center position. Therefore, the central axis of the nozzle portion 2 at the tip of the hose 1 is aligned with the center of the attachment pipe Q.
4) Regarding the assembly of the position holding mechanism 3 to the hose 1 to which the fastener device 7 is attached, each member of the position holding mechanism 3 is disassembled. The inner cylinder 17 has a larger inner diameter than the nut (maximum diameter) of the fastener device 7, which facilitates the insertion operation from the tip of the hose 1, and the assembly after the double cylinder portion 14 is mounted. The attaching process (assembly of the tightening portion 15, assembly of the bearing 18, insertion / fixation of the outer cylinder 16, etc.) is performed smoothly.
5) The fastener device 7 can be inserted into the inner cylinder 17 of the position holding mechanism unit 3, and therefore, the rear end of the cylindrical metal fitting 9 of the fastener device 7 abuts against the tightening unit 15 of the position holding mechanism unit 3. The position of the nozzle portion 2 can be adjusted by a distance L (see FIG. 1) from the rear end of the cylindrical metal fitting 9 to the front end of the tightening portion 15 of the position holding mechanism portion 3.
That is, when assembling, when the nozzle part 2 is attached by being separated from the position holding mechanism part 3, the distance L of the fastener device 7 is set large, the fastening part 15 is tightened to fix the hose 1, and then the nozzle The nozzle head 6 of the part 2 is mounted. Further, when the nozzle portion 2 is pulled into the position holding mechanism portion 3 and attached, the distance L of the fastener device 7 is set to 0 or small, and the fastening portion 15 is fastened and fixed. Further, when adjusting the position of the nozzle part 2 at the site, the fastener 24 of the fastening part 15 that has fixed the hose 1 is once loosened, the distance L is adjusted, and then the fastener 24 of the fastening part 15 is attached. Tighten and fix the hose 1 again.
6) When replacing the nozzle head 6 of the nozzle part 2, the fastening device 24 of the nozzle part 2 is loosened by loosening the fastener 24 of the fastening part 15 to which the hose 1 has been fixed for the nozzle head 6 already attached. 7 is pulled out from the position holding mechanism part 3, the nut parts 12a and 10b of the fastener device 7 are loosened, and the nozzle head 6 is removed. Next, the new nozzle head 6 is attached by tightening the nut portions 12a and 10b of the fastener device 7, the nozzle portion 2 is pulled into the position holding mechanism portion 3, and the fastener 24 of the fastening portion 15 is tightened to tighten the hose 1. Fix it.
（他の態様）
図７及び図８にノズル部２における別な態様を示す。
本態様では、ノズルヘッド６の前面にノズルヘッド装着体（以下単に「装着体」）５０が固定装着されてなる。すなわち、該装着体５０は、所定厚さ（ｔ）を有し周面５０ａが曲面状の円環体をなす。本態様では周面５０ａは四分円をなしその曲率半径ｒは厚さｔに等しいものである。
該装着体５０の厚さｔはセンターピン８の先端より後退し、該先端を十分に露出するに足る長さとされ、その後面５０ｂはノズルヘッド６の前面部６ｅの全体に当接し、その前面５０ｃは後面５０ｂに平行となる。円環体の円孔部５０ｄはセンターピン８及びノズルヘッド６の突起６ｅを十分に囲む大きさを採る。
該装着体５０のノズルヘッド６への取付けは取付けボルト５１によってなされる。詳しくは、該装着体５０に取付けボルト５１用のボルト挿通孔５２が３か所に穿設され、ノズルヘッド６には該ボルト挿通孔５２に対応してねじ孔５３が螺設される。該取付けボルト５１はボルト挿通孔５２を介してノズルヘッド６のねじ孔５３に螺合され、該装着体５０をノズルヘッド６に固定する。本実施形態では放射状に３か所とされるが、２か所又は４か所以上であってもよい。
該装着体５０にはノズルヘッド６の噴射口６ｂに対応して２つの噴射孔５５が開設される。該噴射口６ｂは前記したとおりノズルヘッド６の前面部６ｅの端部に形成されるものであり、該噴射孔５５はこれに対応して図例のとおり周面５０ａに形成されることになる。
該装着体５０は硬質でかつ軽量な素材（目安としてノズルヘッド６と同等の硬さで、かつそれよりも軽いもの）が好ましいものとして選ばれるが、そのような素材としてエンジニアプラスチック（例えば、ＭＣナイロン（日本ポリぺンコ社製、登録商標））が耐久性・成形性も含め好適である。
(Other aspects)
7 and 8 show another aspect of the nozzle unit 2.
In this embodiment, a nozzle head mounting body (hereinafter simply referred to as “mounting body”) 50 is fixedly mounted on the front surface of the nozzle head 6. That is, the mounting body 50 is a circular body having a predetermined thickness (t) and a circumferential surface 50a having a curved surface. In this embodiment, the peripheral surface 50a forms a quadrant, and its radius of curvature r is equal to the thickness t.
The thickness t of the mounting body 50 is retracted from the front end of the center pin 8 and is long enough to expose the front end. The rear surface 50b is in contact with the entire front surface portion 6e of the nozzle head 6, and its front surface. 50c is parallel to the rear surface 50b. The circular hole portion 50d of the torus has a size that sufficiently surrounds the center pin 8 and the protrusion 6e of the nozzle head 6.
The mounting body 50 is attached to the nozzle head 6 by mounting bolts 51. Specifically, bolt mounting holes 52 for mounting bolts 51 are formed in the mounting body 50 at three locations, and screw holes 53 are screwed in the nozzle head 6 corresponding to the bolt insertion holes 52. The mounting bolt 51 is screwed into the screw hole 53 of the nozzle head 6 through the bolt insertion hole 52 to fix the mounting body 50 to the nozzle head 6. In this embodiment, there are three radial positions, but two or four or more positions may be used.
The mounting body 50 has two injection holes 55 corresponding to the injection ports 6 b of the nozzle head 6. The injection port 6b is formed at the end of the front surface portion 6e of the nozzle head 6 as described above, and the injection hole 55 is correspondingly formed on the peripheral surface 50a as shown in the figure. .
The mounting body 50 is preferably selected from a hard and lightweight material (as a guide, a material having the same hardness as the nozzle head 6 and lighter than that), but as such a material, an engineer plastic (for example, MC Nylon (manufactured by Nippon Polypenco Co., Ltd., registered trademark) is preferable including durability and formability.
（作用効果）
本装着体５０を取り付けた本穿孔装置Ｓを取付け管Ｑ内に挿入し進入させるとき、本穿孔装置Ｓは取付け管Ｑの直管部の進入において、その周面５０ａが管壁の凹凸を滑り、引っ掛かりがなく、本穿孔装置Ｓを円滑に前進させる。また、取付け管Ｑの曲がり部において、その周面５０ａが曲がり部に沿って滑り、センターピン８の管壁への引っ掛かりを阻止し、本穿孔装置Ｓ全体を曲がりに沿って円滑に前進させる。
なお、本穿孔装置Ｓを地上部より雨水桝Ｔへ、更に雨水桝Ｔの接続口Ｉより取付け管Ｑ内へ挿入する際にも、本装着体５０により雨水桝Ｔ及び接続口Ｉでの引っ掛かりがなく、円滑な挿入作業がなされる。
このように、本穿孔装置Ｓの取付け管Ｑ内への進入において、装着体５０を取り付けた本穿孔装置Ｓは取付け管Ｑ内で停滞することなく円滑な挿入作業が実現できる。
(Function and effect)
When the perforating apparatus S to which the mounting body 50 is attached is inserted into the attachment pipe Q and entered, the perforating apparatus S slides on the unevenness of the pipe wall when the straight pipe portion of the attachment pipe Q enters. The punching device S is smoothly advanced without being caught. Further, in the bent portion of the attachment pipe Q, the peripheral surface 50a slides along the bent portion, preventing the center pin 8 from being caught on the pipe wall, and the entire perforating apparatus S is smoothly advanced along the bent portion.
In addition, when the drilling device S is inserted into the rainwater tank T from the ground, and further into the attachment pipe Q from the connection port I of the rainwater tank T, the attachment body 50 catches the rainwater tank T and the connection port I. There is no, and smooth insertion work is done.
As described above, when the perforating apparatus S enters the attachment pipe Q, the perforating apparatus S to which the mounting body 50 is attached can realize a smooth insertion operation without stagnation in the attachment pipe Q.
該装着体５０は上記した態様に限らず、次の態様を含む。
１）装着体５０のノズルヘッド６への取付けは、本態様では取付けボルト５１を用いたが、装着体５０の高面５０ｂとノズルヘッド６の前面部６ｅとに凹凸部を設け、その凹凸係合（強嵌合）によりなすこと。
２）噴射孔５５につき、孔に替えて切欠き凹部とすること。
The mounting body 50 is not limited to the above-described mode but includes the following mode.
1) The mounting body 50 is attached to the nozzle head 6 by using the mounting bolt 51 in this embodiment. However, an uneven portion is provided on the high surface 50b of the mounting body 50 and the front surface portion 6e of the nozzle head 6, and the uneven portion Do it by joining (strong fitting).
2) About the injection hole 55, it replaces with a hole and makes it a notch recessed part.
本発明は叙上の実施の形態にのみ限定されるものではなく、本発明の基本的技術思想の範囲内で種々設計変更が可能である。すなわち、以下の態様は本発明の技術的範囲内に包含される。
１）位置固定パッカー３Ｂの水抜き管３０を適宜省略することは可能である。この場合、ノズル部２と位置保持機構部３との距離Ｌは最短状態より長めに設定される。
２）ノズル部２と位置保持機構部３との距離Ｌを常時最短状態に保持する態様。この態様によれば、ノズル部２と位置保持機構部３との一体性が高まる。
The present invention is not limited to the above-described embodiments, and various design changes can be made within the scope of the basic technical idea of the present invention. That is, the following aspects are included in the technical scope of the present invention.
1) The drain pipe 30 of the fixed position packer 3B can be omitted as appropriate. In this case, the distance L between the nozzle part 2 and the position holding mechanism part 3 is set longer than the shortest state.
2) A mode in which the distance L between the nozzle part 2 and the position holding mechanism part 3 is always kept in the shortest state. According to this aspect, the integrity of the nozzle part 2 and the position holding mechanism part 3 is enhanced.
Ｓ…穿孔装置、Ｐ…下水道本管（主管）、Ｑ…取付け管（接続管）、１…高圧水用可撓管（高圧水用ホース）、２…ノズル部、３…位置保持機構部、３Ａ…回転把持機構部、３Ｂ…位置固定パッカー、４…動力部、５…回転駆動部、６…ノズルヘッド、６ａ…導水通路、６ｂ…噴射口、６ｃ…テーパー部、７…留め具装置、８…センターピン、９…円筒金具、１０…第１の接続金具、１１…第２の接続金具、１２…第３の接続金具、１４…２重筒部、１５…締付け部、１６…外筒、１７…内筒、１８…軸受、２２…固定輪、２３…押輪、２５…ゴム体、２９…袋体、３０…水抜き管、３２…高圧ポンプ、５０…ノズルヘッド装着体、５１…取付けボルト、５５…噴射孔 DESCRIPTION OF SYMBOLS S ... Punching device, P ... Sewer main pipe (main pipe), Q ... Mounting pipe (connection pipe), 1 ... Flexible pipe for high pressure water (hose for high pressure water), 2 ... Nozzle part, 3 ... Position holding mechanism part, 3A ... Rotary gripping mechanism part, 3B ... Position fixing packer, 4 ... Power part, 5 ... Rotation drive part, 6 ... Nozzle head, 6a ... Water guide passage, 6b ... Injection port, 6c ... Taper part, 7 ... Clamping device, DESCRIPTION OF SYMBOLS 8 ... Center pin, 9 ... Cylindrical metal fitting, 10 ... 1st connection metal fitting, 11 ... 2nd connection metal fitting, 12 ... 3rd connection metal fitting, 14 ... Double cylinder part, 15 ... Fastening part, 16 ... Outer cylinder 17 ... Inner cylinder, 18 ... Bearing, 22 ... Fixed wheel, 23 ... Push ring, 25 ... Rubber body, 29 ... Bag body, 30 ... Drain pipe, 32 ... High pressure pump, 50 ... Nozzle head mounting body, 51 ... Installation Bolt, 55 ... injection hole
Claims (5)
高圧水を導通するとともに所要の剛性を有する長尺の高圧水用可撓管と、
内部に導水通路を有する円盤状体よりなり、該円盤状体の前面の中心に先端の尖ったセンターピンが一定長をもって突設され、該円盤状体の他の前面に高圧水噴射口を有し、該円盤状体の後面の前記導水通路に連通して前記高圧水用可撓管の先端に装着固定され円筒体のねじ込み操作による留め具装置を介し、かつ該留め具装置の先端面と前記円盤状体の後面の導水通路の開口面とをテーパー当接させ、着脱可能に接続されるノズル部と、
前記ノズル部の後方位置で、前記接続管の管軸に一致する前記高圧水用可撓管回りに固定把持され、該可撓管の回転動を許容して前記接続管内に固定保持される位置保持機構部と、
前記高圧水用可撓管の後端部に接続され、該高圧水用可撓管の回転を許容するとともに該高圧水用可撓管内に高圧水を供給する高圧水ポンプと、該高圧水用可撓管の後端部近傍に連動し、該高圧水用可撓管に回転を付与する回転駆動部と、を少なくとも備えてなる動力部と、
からなることを特徴とする管路の高圧水穿孔装置。 A piercing device in which a lining pipe is provided on an inner surface of a large-diameter main pipe, inserted into a small-diameter connecting pipe connected to the main pipe at an orthogonal or steep inclination angle, and drills a connecting portion closed by the lining pipe. ,
A long flexible tube for high pressure water that conducts high pressure water and has the required rigidity;
It consists of a disk-shaped body with a water guide passage inside, and a center pin with a pointed tip projects from the center of the front surface of the disk-shaped body with a fixed length, and has a high-pressure water jet on the other front surface of the disk-shaped body. and, the distal end surface of the via fastening device according screwing operation of the communicating with the water guide passage is mounted fixed to the distal end of the high pressure water for flexible tube cylinder of the rear surface of the disc-shaped body, and該留Me instrument device and A nozzle portion which is detachably connected with a taper contact with the opening surface of the water guide passage on the rear surface of the disk-shaped body;
A position that is fixedly held around the flexible pipe for high-pressure water that coincides with the tube axis of the connection pipe at a rear position of the nozzle portion, and is fixed and held in the connection pipe while allowing the flexible pipe to rotate. A holding mechanism;
A high-pressure water pump connected to a rear end portion of the flexible pipe for high-pressure water, allowing rotation of the flexible pipe for high-pressure water and supplying high-pressure water into the flexible pipe for high-pressure water; A power unit comprising at least a rotation drive unit that interlocks with the vicinity of the rear end of the flexible tube and imparts rotation to the flexible tube for high-pressure water,
A high-pressure water perforating apparatus for pipes, characterized by comprising:
前記回転把持機構部は、
ａ）長尺の円筒状の外筒と短尺の円筒状の内筒との２重筒構成よりなり、内外筒間に該内筒の回転のみ許容する軸受が装着されてなる２重筒部、
ｂ）前記外筒内にあって、前記内筒に一体に固定されるとともに、少なくとも２つ割をなす固定輪と押輪との挟着作用により挟着されるゴム体の内径が縮径されて前記高圧水用可撓管を固定把持する締付け部、
からなり、
前記位置固定パッカーは、前記回転把持機構部の外筒の外周に被着固定され、その袋体の膨張作用をもって接続管の内周面に圧接される、
ことを特徴とする請求項１又は２のいずれかに記載の管路の高圧水穿孔装置。 The position holding mechanism section is fixedly held around the flexible pipe for high-pressure water, and the rotary holding mechanism section that allows the flexible pipe to rotate and is fixedly held in the connection pipe, and holds and fixes the rotary holding mechanism section. And a fixed position packer
The rotary gripping mechanism unit is
a) a double cylinder portion comprising a double cylinder structure of a long cylindrical outer cylinder and a short cylindrical inner cylinder, and a bearing that allows only rotation of the inner cylinder is mounted between the inner and outer cylinders;
b) The inner diameter of the rubber body which is in the outer cylinder and is fixed integrally to the inner cylinder and which is clamped by the clamping action of the fixed ring and the push ring which are at least divided into two parts is reduced. A clamping part for fixing and holding the flexible pipe for high-pressure water,
Consists of
The position fixing packer is adhered and fixed to the outer periphery of the outer cylinder of the rotary gripping mechanism portion, and is pressed against the inner peripheral surface of the connection pipe with the expansion action of the bag body.
The high-pressure water perforating apparatus for a pipe according to claim 1 or 2 ,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012228097A JP5698721B2 (en) | 2012-09-06 | 2012-10-15 | High pressure water drilling device for pipeline |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012196265 | 2012-09-06 | ||
| JP2012196265 | 2012-09-06 | ||
| JP2012228097A JP5698721B2 (en) | 2012-09-06 | 2012-10-15 | High pressure water drilling device for pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2014065138A JP2014065138A (en) | 2014-04-17 |
| JP5698721B2 true JP5698721B2 (en) | 2015-04-08 |
Family
ID=50742025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012228097A Active JP5698721B2 (en) | 2012-09-06 | 2012-10-15 | High pressure water drilling device for pipeline |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5698721B2 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH071279Y2 (en) * | 1992-05-18 | 1995-01-18 | 彰 市原 | Opening device for inner tube lining tube |
| JPH078160Y2 (en) * | 1993-01-12 | 1995-03-01 | 彰 市原 | Opening device for inner tube lining tube |
| JP2000061898A (en) * | 1998-08-20 | 2000-02-29 | Kansai Kogyosho:Kk | Device for opening lining tube |
| AU2007284157B2 (en) * | 2006-08-08 | 2011-01-20 | Shell Internationale Research Maatschappij B.V. | Subsea hot tap systems and methods |
| CA2755007C (en) * | 2010-10-13 | 2019-01-15 | Gerard J. Macneil | Refractory material removal system and method |
| JP6012035B2 (en) * | 2012-07-06 | 2016-10-25 | 東京地下鉄株式会社 | High pressure water drilling equipment |
| JP2014015731A (en) * | 2012-07-06 | 2014-01-30 | Tokyo Metro Co Ltd | Nozzle head for high-pressure water drilling |
-
2012
- 2012-10-15 JP JP2012228097A patent/JP5698721B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014065138A (en) | 2014-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7677335B2 (en) | Tools and technology of radical and level drilling/well completion under ultra-short radius | |
| JP2845823B2 (en) | cutter | |
| CN101563190A (en) | Electric device with locked-on rotatable operating element | |
| CN111795233B (en) | Pipeline quick connecting flange and pipeline quick connecting method | |
| KR100728766B1 (en) | The fluid-crossing gate for pipeline | |
| US20120183358A1 (en) | Apparatus and method for providing access to a buried pipe | |
| JP5698721B2 (en) | High pressure water drilling device for pipeline | |
| US6615859B2 (en) | Fluid supply interruption free method of construction | |
| WO2007135873A1 (en) | Branch tube connection device and branch tube connection method | |
| JP2006314926A (en) | Washing method of inner face of pipeline | |
| JP5014022B2 (en) | Branch fitting | |
| JP2008274547A (en) | Hole drilling device | |
| JP2015112790A (en) | Pipe making device | |
| JP7046362B2 (en) | Bush mounting machine | |
| JP4712101B2 (en) | Lock ring insertion device | |
| JP3056663B2 (en) | Edge cutting method for existing buried pipe | |
| JP6313668B2 (en) | Pilot hole drilling jig and rehabilitation pipe connection hole drilling method | |
| CN108127383A (en) | A kind of replacing options for crane oil inlet pipe | |
| JP2014051840A (en) | Connection structure and connection method of segment pipe | |
| CN102678042B (en) | Driving and connecting device for rotary drilling rig power head pile casing | |
| AU2005100246A4 (en) | A hand held internal pipe rotary cutting tool | |
| JPH01150087A (en) | Method of replacing existing main pipe with novel main pipe | |
| JP5290668B2 (en) | Prior material installation method | |
| JP2024057683A (en) | Rock bolt installation device and installation method | |
| JP3037376U (en) | Tube for buried pipe used in small diameter buried pipe propulsion method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20140925 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20140930 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20141128 |
|
| 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: 20150210 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20150213 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 5698721 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 |
|
| 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 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |