JPH08210073A - Casing tube - Google Patents

Casing tube

Info

Publication number
JPH08210073A
JPH08210073A JP1508795A JP1508795A JPH08210073A JP H08210073 A JPH08210073 A JP H08210073A JP 1508795 A JP1508795 A JP 1508795A JP 1508795 A JP1508795 A JP 1508795A JP H08210073 A JPH08210073 A JP H08210073A
Authority
JP
Japan
Prior art keywords
diameter side
lock pin
casing tube
nut
bolt
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.)
Pending
Application number
JP1508795A
Other languages
Japanese (ja)
Inventor
Yuzo Kitamura
裕三 北村
Kikuji Egawa
菊次 江川
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP1508795A priority Critical patent/JPH08210073A/en
Publication of JPH08210073A publication Critical patent/JPH08210073A/en
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

PURPOSE: To enable a lock pin main body for vertically connecting casing tubes together to be inserted from the inside diameter side by attaching a nut to a female joint, and fastening a bolt from a male joint. CONSTITUTION: A female joint 2 mounted on the outside diameter side of each casing tube 1 and a male joint 5 mounted on the inside diameter side are connected together by fastening a bolt 4 and a nut 6 together via a tapered lock pin main body 3 used for vertical connection and inserted between the joints. For the lock pin main body 3 to be inserted from the inside diameter side, the nut 6 is fitted to the female joint 2, and the bolt 4 is fastened from the male joint 5. To connect the casing tubes 1 together, the nut 6 is welded to the female joint 2 on the outside diameter side, a lock pin 7 is inserted into the inside-diameter side male joint 5 from the inside diameter side, and the center bolt 4 is driven into the nut 6 from the inside diameter side, so that the tapered lock pin main body 3 connects both joints together.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はオールケーシング掘削機
に適用されるケーシングチューブに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a casing tube applied to an all-casing excavator.

【0002】[0002]

【従来の技術】この種ケーシングチューブは掘削の進行
に伴ない順次接続し、孔壁をケーシングチューブによっ
て維持するもので、そのケーシングチューブの接続は図
3に示すようにケーシングチューブ1の外径側に取付け
られる雌ジョイント2の外径側より上下方向接続用のテ
ーパー状のロックピン本体3を挿入し、該ロックピン本
体3の中央部のボルト4をケーシングチューブ1の内径
側に取付けられる雄ジョイント5に固定のナット6にね
じ込むことによりテーパー状のロックピン本体3が雌ジ
ョイント2と雄ジョイント5とを接続している。図中7
はロックピンを示す。
2. Description of the Related Art Casing tubes of this kind are connected one after another as excavation proceeds, and the hole wall is maintained by the casing tube. The connection of the casing tube is as shown in FIG. A male joint that is attached to the inner diameter side of the casing tube 1 by inserting a taper-shaped lock pin body 3 for vertical connection from the outer diameter side of the female joint 2 attached to the The taper-shaped lock pin main body 3 connects the female joint 2 and the male joint 5 by screwing it into the nut 6 fixed to 5. 7 in the figure
Indicates a lock pin.

【0003】[0003]

【発明が解決しようとする課題】図3に示す、従来のケ
ーシングチューブの上下方向接続用のロックピン本体を
外側より挿入する構造では、 (1)オールケーシング掘削機の下側でケーシングチュ
ーブ接続用のロックピン本体を取外すために路下空間を
設ける必要がある。 (2)オールケーシング掘削機の下側に路下室を設ける
ことは、掘削機本体重量やケーシングチューブ重量など
の大荷重が掘削地盤に加わるため、強固な路下室または
基礎が必要であり、作業現場によっては補強の必要が生
ずる。 (3)ケーシングチューブを除去時、ケーシングチュー
ブの接続部が掘削機本体内部に来た場合、掘削機本体の
分解、移動が必要となる。 などの問題点がある。
In the structure shown in FIG. 3 in which the lock pin main body for connecting the casing tube in the vertical direction is inserted from the outside, (1) the casing tube connecting portion is provided below the all casing excavator. It is necessary to provide a space under the road to remove the lock pin body. (2) Providing a sub-chamber under the all-casing excavator requires a strong sub-chamber or foundation because a large load such as the weight of the excavator body and the casing tube is applied to the excavation ground. Reinforcement may be required depending on the site. (3) When the casing tube is removed and the connecting portion of the casing tube comes inside the excavator body, the excavator body needs to be disassembled and moved. There are problems such as.

【0004】本発明はかかる問題点に対処するため開発
されたものであってロックピン本体を内径側より挿入す
る構造とし吊り梯子などを利用して内径側よりケーシン
グチューブの接続用のロックピン本体を取付け取外しを
することができるようにすることを目的とする。
The present invention was developed in order to solve such a problem, and has a structure in which the lock pin body is inserted from the inner diameter side, and a lock ladder body for connecting the casing tube from the inner diameter side by using a suspension ladder or the like. The purpose is to be able to install and remove.

【0005】[0005]

【課題を解決するための手段】上記の目的を達成するた
めの本発明の構成を実施例に対応する図2を用いて説明
すると本発明はケーシングチューブ1の外径側に取付け
られる雌ジョイント2とケーシングチューブ1の内径側
に取付けられる雄ジョイント5とを両者間に挿入される
上下方向接続用のテーパー状のロックピン本体3を介し
てボルト4とナット6との締結により接続するようにし
たケーシングチューブにおいて前記ロックピン本体3を
内径側より挿入できるように前記ナット6を雌ジョイン
ト2側に取付けて、前記ボルト4を雄ジョイント5側か
ら締結するようにしたことを特徴とする。
The structure of the present invention for achieving the above object will be described with reference to FIG. 2 corresponding to an embodiment. The present invention is a female joint 2 mounted on the outer diameter side of a casing tube 1. And a male joint 5 mounted on the inner diameter side of the casing tube 1 are connected by fastening a bolt 4 and a nut 6 via a taper-shaped lock pin body 3 for vertical connection which is inserted between the two. In the casing tube, the nut 6 is attached to the female joint 2 side so that the lock pin body 3 can be inserted from the inner diameter side, and the bolt 4 is fastened from the male joint 5 side.

【0006】[0006]

【作用】そして本発明は上記の手段によりロックピン本
体は内径側より雄ジョイントに挿入し、そのボルトを雄
ジョイント側から雌ジョイントに固定のナットに締結す
ることにより、取付けられる。
According to the present invention, the lock pin main body is attached by inserting the lock pin main body from the inner diameter side into the male joint by the above means and fastening the bolt from the male joint side to the nut fixed to the female joint.

【0007】[0007]

【実施例】以下本発明の実施例を図1および図2につい
て説明する。図1はオールケーシング工法の施工状態
図、図2はケーシングチューブ接続部のロックピン構造
図を示す。図1において、オールケーシング掘削機10
は掘削した孔壁を維持するケーシングチューブ1をクラ
ンプし、回転または揺動させながら押し込む機械であ
り、ケーシングチューブ1内の土砂を掘削バケット11
にて排土し、ケーシングチューブ1を所定の深さまで嵌
入させるオールケーシング工法の施工状態である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a construction state diagram of the all casing method, and FIG. 2 shows a lock pin structure diagram of a casing tube connecting portion. In FIG. 1, an all-casing excavator 10
Is a machine that clamps the casing tube 1 that maintains the excavated hole wall, and pushes it while rotating or rocking it.
It is a construction state of the all-casing method in which the soil is discharged and the casing tube 1 is fitted to a predetermined depth.

【0008】図2において、ケーシングチューブ1を順
次接続して行く時にナット6は外径側にある雌ジョイン
ト2に溶接され、ロックピン7は内径側にある雄ジョイ
ント5に内径側より挿入し、中央部のボルト4をナット
6に内径側よりねじ込むことにより、テーパー状のロッ
クピン本体3が雌ジョイント2と雄ジョイント5を接続
する構造である。尚、雄ジョイント5及び雌ジョイント
2のロックピン用テーパ穴は、ジョイントの内径側が大
径で外径側が小径となっている。
In FIG. 2, when the casing tubes 1 are sequentially connected, the nut 6 is welded to the female joint 2 on the outer diameter side, and the lock pin 7 is inserted into the male joint 5 on the inner diameter side from the inner diameter side. The taper-shaped lock pin body 3 connects the female joint 2 and the male joint 5 by screwing the central bolt 4 into the nut 6 from the inner diameter side. The lock pin taper holes of the male joint 5 and the female joint 2 have a large diameter on the inner diameter side and a small diameter on the outer diameter side of the joint.

【0009】[0009]

【発明の効果】以上説明したように本発明は、ケーシン
グチューブの外径側に取付けられる雌ジョイントとケー
シングチューブの内径側に取付けられる雄ジョイントと
を上下方向に接続するテーパー状のロックピン本体は、
これを内径側より挿入できるようにナットを雌ジョイン
ト側に取付けてボルトを雄ジョイント側から締結するよ
うにしたから掘削機本体据付下部にロックピン本体取付
用の路下空間を設ける必要がなくなるため掘削機本体重
量及びケーシングチューブ重量を支える強固な基礎地盤
が必要でなくなり又ケーシングチューブ除去時ケーシン
グチューブの接続部が掘削機本体内部にある時でも内径
側より取付け、取外しができ掘削機本体の1部分解や移
動させる必要がなくなる等の効果を有する。
As described above, according to the present invention, a tapered lock pin body for vertically connecting a female joint mounted on the outer diameter side of a casing tube and a male joint mounted on the inner diameter side of the casing tube is provided. ,
Since the nut is attached to the female joint side so that it can be inserted from the inner diameter side and the bolt is fastened from the male joint side, it is not necessary to provide an underpass space for attaching the lock pin body at the lower part of the excavator body installation. A strong foundation ground that supports the weight of the excavator body and the casing tube is no longer required, and even when the casing tube is removed, the casing tube can be installed and removed from the inner diameter side even when the casing tube is inside the excavator body. It has the effect of eliminating the need for partial disassembly and movement.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の1実施例に係るオールケーシング工法
の施工状態図である。
FIG. 1 is a construction state diagram of an all-casing construction method according to an embodiment of the present invention.

【図2】本発明の1実施例に係るケーシングチューブ接
続部のロックピン本体構造図である。
FIG. 2 is a structural diagram of a lock pin body of a casing tube connecting portion according to an embodiment of the present invention.

【図3】従来のケーシングチューブ接続部のロックピン
本体構造図である。
FIG. 3 is a structural diagram of a lock pin body of a conventional casing tube connecting portion.

【符号の説明】[Explanation of symbols]

1 ケーシングチューブ 2 雌ジョイント 3 ロックピン本体 4 ボルト 5 雄ジョイント 6 ナット 1 Casing tube 2 Female joint 3 Lock pin body 4 Bolt 5 Male joint 6 Nut

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 ケーシングチューブの外径側に取付けら
れる雌ジョイントとケーシングチューブの内径側に取付
けられる雄ジョイントとを両者間に挿入される上下方向
接続用のテーパー状のロックピン本体を介してボルトと
ナットとの締結により接続するようにしたケーシングチ
ューブにおいて、前記ロックピン本体を内径側より挿入
できるように、前記ナットを雌ジョイント側に取付けて
前記ボルトを雄ジョイント側から締結するようにしたこ
とを特徴とするケーシングチューブ。
1. A bolt through a taper-shaped lock pin main body for vertical connection in which a female joint mounted on the outer diameter side of the casing tube and a male joint mounted on the inner diameter side of the casing tube are inserted between the two. In a casing tube configured to be connected by fastening a nut with a nut, the nut is attached to the female joint side and the bolt is fastened from the male joint side so that the lock pin body can be inserted from the inner diameter side. A casing tube characterized by.
JP1508795A 1995-02-01 1995-02-01 Casing tube Pending JPH08210073A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1508795A JPH08210073A (en) 1995-02-01 1995-02-01 Casing tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1508795A JPH08210073A (en) 1995-02-01 1995-02-01 Casing tube

Publications (1)

Publication Number Publication Date
JPH08210073A true JPH08210073A (en) 1996-08-13

Family

ID=11879069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1508795A Pending JPH08210073A (en) 1995-02-01 1995-02-01 Casing tube

Country Status (1)

Country Link
JP (1) JPH08210073A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011047170A (en) * 2009-08-26 2011-03-10 Sanwa Kizai Co Ltd Ground excavator of casing rotation propulsion type and excavation method by use of the same
JP2012214970A (en) * 2011-03-31 2012-11-08 Nippon Steel & Sumikin Metal Products Co Ltd Connection structure and connection technique for steel pipe for pipe roof technique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011047170A (en) * 2009-08-26 2011-03-10 Sanwa Kizai Co Ltd Ground excavator of casing rotation propulsion type and excavation method by use of the same
JP2012214970A (en) * 2011-03-31 2012-11-08 Nippon Steel & Sumikin Metal Products Co Ltd Connection structure and connection technique for steel pipe for pipe roof technique

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Effective date: 20000704