JPS6210395A - Dividing excavating mechanism in pipe burying device - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 （産業上の利用分野） この発明は、水道管、ガス管、ケーブル管等を地中に横
孔を掘削しつつ該横孔内に押しこむ管理設、特に長距離
の管理設装置における埋設管の推進機構に関する。Detailed Description of the Invention (Field of Industrial Application) This invention relates to management equipment in which water pipes, gas pipes, cable pipes, etc. are pushed into the horizontal hole while digging a horizontal hole in the ground, especially for long distances. This invention relates to a propulsion mechanism for buried pipes in management and installation equipment.

（従来の技術） 従来、水道管等の埋設装置として、ヒユーム管からなる
埋設管単体を順次継足してなる連続埋設管内にケーシン
グを挿通すると共に該ケーシング内にオーガスクリユー
を回転自在に挿通し、上記オーガスクリユーにより埋設
管の先端地盤を掘削しつつ該連続埋設管を後端から押圧
（元押し）して地中に押しこんでいく、いわゆる元押し
型構造のものが一般に使用されているが、埋設距離が長
くなるに伴い元押し部に近いヒユーム管はど強大な押圧
力とその反力とによる圧縮をうけて割れる危険が増大す
る欠点があった。(Prior art) Conventionally, as a burying device for water pipes, etc., a casing is inserted into a continuous buried pipe made by sequentially joining single buried pipes made of humid pipes, and an auger crew is rotatably inserted into the casing. Generally, a so-called extrusion type structure is used, in which the tip of the underground pipe is excavated by the auger screw, and the continuous underground pipe is pressed (extruded) from the rear end and pushed into the ground. However, as the buried distance increases, the risk of cracking increases as the hume pipes near the source are compressed by the strong pressing force and its reaction force.

その対策として１本発明者は、さきにケーシングの中間
部に中押し手段を装備し、該中押し手段を連続埋設管の
中間部に係止した状態で上記ケーシングを元押しするこ
とにより中間部から前方の埋設管を推進させ、ついで埋
設管の元押しにより中間部から後方の埋設管を推進させ
、以下前方埋設管と後方埋設管の交互推進により管理設
を行う埋設管中押し装置を提案した（特願昭６Ｏ−４１
２８２）。As a countermeasure against this, the present inventor first equipped an intermediate pushing means in the intermediate part of the casing, and with the intermediate pushing means locked in the intermediate part of the continuous buried pipe, pushed the casing forward from the intermediate part. We proposed a buried pipe mid-pushing device that propels the buried pipe, then pushes the buried pipe from the middle to the rear by pushing the buried pipe, and then performs management installation by alternately pushing the front buried pipe and the rear buried pipe (specially Gansho 6O-41
282).

（発明が解決しようとする問題点） 本発明は、さぎの提案をさらに改良し、構成を簡略化す
ると共に交互推進操作に代え単一推進操作で管理設を行
うことができる埋設管分割推進機構を提供することを目
的とする。(Problems to be Solved by the Invention) The present invention further improves Sagi's proposal, simplifies the configuration, and makes it possible to manage and install a buried pipe split propulsion mechanism using a single propulsion operation instead of an alternating propulsion operation. The purpose is to provide

（問題点を解決するための手段） 上記目的を達成するため、本発明の分割推進機構は、 埋設管単体を順次継足してなる連続埋設管内にケーシン
グを挿通すると共に該ケーシング内にオーガスクリユー
を回転自在に挿通し、上記連続埋設管の先端地盤を掘削
しつつ該連続埋設管を地中に押しこむ管理設装置におい
て、 上記連続埋設管及びケーシングの各後端を同時に押圧す
る元押し手段を備え。(Means for Solving the Problems) In order to achieve the above object, the split propulsion mechanism of the present invention includes a casing inserted into a continuous buried pipe formed by sequentially joining single buried pipes, and an auger screw inserted into the casing. In the management and installation device for rotatably inserting the continuous underground pipe and pushing the continuous underground pipe into the ground while excavating the ground at the tip of the continuous underground pipe, a source pushing means for simultaneously pressing each rear end of the continuous underground pipe and the casing. Equipped with.

上記連続埋設管の所要位置しこおける前後隣り合う両埋
設管単体間を分断し、上記ケーシングの外周面に起伏自
在に設けた中押し部材を上記分断位置における前部埋設
管単体の後端に前方押圧可能に当接した、 構成としである。以下図面を参照して本発明の詳細な説
明する。At the required position of the continuous buried pipe, the two adjacent buried pipes are separated, and an intermediate push member provided on the outer circumferential surface of the casing in a freely undulating manner is placed forward at the rear end of the front buried pipe at the dividing position. It has a configuration in which it abuts so that it can be pressed. The present invention will be described in detail below with reference to the drawings.

第１図において、埋設開始位置に設けられたピット（Ｐ
）内に元押し駆動装置（１）が設置されており、該元押
し駆動装置は、ピット底面に敷設されたレール（２）に
台車（３）を走行自在にのせ、該台車の前端に、連続埋
設管（４）及び該埋設管（４）内に挿通されたケーシン
グ（５）の各後端を着脱自在に保持する推進ホルダ（６
）を設け、又台車（３）上には上記ケーシング（５）内
に回転自在に挿通されたオーガスクリユー（７）の後端
に回転を伝達するモータ等の回転駆動装置（８）を設置
し、このような台車（３）の両側に２本の元押し用油圧
シリンダ（９）を取付けである。（２０）−−−一はス
ペーサである。In Figure 1, a pit (P
) A main push drive device (1) is installed in the pit. A propulsion holder (6) detachably holds each rear end of the continuous buried pipe (4) and the casing (5) inserted into the buried pipe (4).
), and a rotation drive device (8) such as a motor for transmitting rotation to the rear end of the auger screw (7) rotatably inserted into the casing (5) is installed on the trolley (3). However, two main pushing hydraulic cylinders (9) are attached to both sides of such a truck (3). (20)---One is a spacer.

上記埋設管（４）は、図ではヒユーム管からなる埋設管
単体（４ａ）、　（４ｂ）、（４ｃ）を順次継足し、ケ
ーシング（５）は上記埋設管（４）の内周面との間に適
宜間隔を形成するように該埋設管よりも小径の鋼管であ
り、このケーシング（５）及びオーガスクリユー（７）
も埋設管単体と同長のケーシング単体及びスクリュー単
体を順次継足してあり、このような埋設管（４）のうち
本例では第３番目の埋設管単体（４Ｃ）を若干短いもの
にしてその前隣りの埋設管単体（４ｂ）との間を分断し
、この分断位置の管内においてケーシング単体（５ａ）
の外周面に中押し装置（Ａ）を装備しである。The buried pipe (4) is constructed by sequentially adding buried pipes (4a), (4b), and (4c) consisting of hume pipes in the figure, and the casing (5) is connected to the inner circumferential surface of the buried pipe (4). The casing (5) and the auger screw (7) are made of a steel pipe with a smaller diameter than the buried pipe so as to form an appropriate interval between them.
In this example, the casing unit and screw unit of the same length as the buried pipe unit are successively added, and in this example, the third buried pipe unit (4C) is made slightly shorter than the buried pipe unit (4). The casing alone (5a) is separated from the adjacent underground pipe (4b) in the pipe at this dividing position.
It is equipped with an intermediate push device (A) on the outer peripheral surface.

中押し装置（Ａ）の構造は次のようである。第２．３図
においてケーシング（５ａ）の外周面に４組の中押し部
材が互に等角度間隔をあけて装着されており、便宜上そ
の１組についてみると、ケーシング（５ａ）の外周面に
左右対をなすブラケット（１０）、（１０）を突設し、
該ブラケット（１０）、　（１０）にほぼ丁字形の中押
しレバー（１１）の基部をケーシング単体（５ａ）の縦
断面上で揺動自在に支承し、その際内方に揺動したとき
はケーシング単体（５ａ）の外周面に添接する状態に倒
伏し、又外方へ揺動したときはレバー先端部を上記前部
埋設管単体（４ｂ）の後端面に当接する位置に起立する
ようにし、さらに上記中押しレバー（１１）をその起立
位置からそれ以上後方へ揺動するのを阻止するため、ケ
ーシング単体（５ａ）外周面における中押しレバー（１
１）の背後にストッパー板（１２）を突設しである。The structure of the intermediate push device (A) is as follows. In Fig. 2.3, four sets of intermediate push members are attached to the outer circumferential surface of the casing (5a) at equal angular intervals. A pair of brackets (10) and (10) are provided protrudingly,
The base of the approximately T-shaped intermediate push lever (11) is supported on the brackets (10), (10) so that it can swing freely on the longitudinal section of the casing unit (5a), and when it swings inward, the casing When it is laid down so as to be attached to the outer peripheral surface of the single body (5a), and when it is swung outward, the tip of the lever is erected to a position where it comes into contact with the rear end surface of the front buried pipe single body (4b), Furthermore, in order to prevent the middle push lever (11) from swinging further backward from its upright position, the middle push lever (11) is placed on the outer peripheral surface of the casing unit (5a).
1) A stopper plate (12) is provided protruding from behind.

他の中押しレバー（１１）−−−−も上記と同一の構造
である。The other intermediate push levers (11) have the same structure as above.

上記各組の中押しレバー（１１）−−−−を起伏させる
駆動手段として、上記ケーシング単体（５ａ）に摺動リ
ング（１３）をケーシング長手方向に摺動自在に被嵌し
、該リング（１３）と上記中押しレバー（１１）−−−
一の中間部とを２本構成の連結棒（１４）（１’４）、
−一一一により連結し、一方油圧シリンダ（１５）、　
（１５）をケーシング単体（５ａ）外周面に固定すると
共にそのラム（１６）、（１６）を上記摺動リング（１
３）に連結しである。As a driving means for raising and lowering each set of intermediate push levers (11), a sliding ring (13) is fitted onto the casing unit (5a) so as to be slidable in the longitudinal direction of the casing. ) and the above middle push lever (11) ---
a connecting rod (14) (1'4) consisting of two pieces,
- one hydraulic cylinder (15);
(15) is fixed to the outer peripheral surface of the casing alone (5a), and its rams (16), (16) are fixed to the sliding ring (1).
It is connected to 3).

前後隣り合う埋設管単体（４ｂ）、（４Ｃ）の間にはカ
バー管（１７）が被装されており、該カバー管（１７）
はそのほぼ中間部内周面に内側フランジ（１８）を突設
したもので、その一端がわを前部埋設管単体（４ｂ）の
後端部に被着し、他端がわを後部埋設管単体（４Ｃ）の
前端部に摺動自在に被嵌しである。上記カバー管（１７
）の長さは、中押レバー（１１）−−−一の起伏を行う
際両単体（４ｂ）、　（４ｃ）の間を覆う程度であれば
よい。（１９）はケーシング（５）を埋設管（４）内に
同心的に保持するための保持脚である。A cover pipe (17) is placed between the buried pipes (4b) and (4C) adjacent to each other in the front and back, and the cover pipe (17)
has an inner flange (18) protruding from the inner peripheral surface of the approximately middle part, one end of which is attached to the rear end of the front buried pipe unit (4b), and the other end is attached to the rear buried pipe (4b). It is slidably fitted into the front end of the unit (4C). The above cover tube (17
) may be long enough to cover the space between the two units (4b) and (4c) when the middle push lever (11)---1 is raised and lowered. (19) is a holding leg for holding the casing (5) concentrically within the buried pipe (4).

本発明の埋設管分割推進機構の作用を次に説明する。オ
ーガスクリユー（７）の回転により埋設管先端の地盤を
掘削しつつ元押し用油圧シリンダ（９）の伸長駆動によ
り台車（３）を前進させ、それにより埋設管（４）及び
ケーシング（５）を推進ホルダ（６）により同時に推進
させ、オーガスクリユー（７）は台車（３）と共に前進
させ、このよろにして埋設管単体１本分を推進したら順
次埋設管単体を継足し、それと共にケーシング（５）及
びオーガスクリユー（７）も順次継足して推進を行って
いく、−例として、埋設管単体（４ａ）、（４ｂ）を推
進したとき埋設管に働く推進反力が危険値に至った場合
、埋設管に若干短い埋設管単体（４Ｇ）を、ケーシング
に中押し装置（Ａ）つきの通常長さのケーシング単体（
５ａ）をその中押しレバー（１１）−−−一を起立させ
てそれぞれ継足すると共に、該埋設管単体（４Ｃ）及び
ケーシング単体（５ａ）の各後端を推進ホルダ（６）に
保持させる。このようにすれば、上記埋設管単体（４ａ
）、（４ｂ）、（４ｃ）からなる連続埋設管（４）は、
埋設管単体（４Ｃ）の短小分だけ前隣りの単体（４ｂ）
との間に間隔（ｄ）をあけ、該間隔（ｄ）を境に前方埋
設管（４ａ）、（４ｂ）と後方埋設管（４Ｃ）とに分割
されることとなる。The operation of the buried pipe division propulsion mechanism of the present invention will be explained next. While excavating the ground at the tip of the buried pipe by rotation of the auger screw (7), the trolley (3) is advanced by the extension drive of the hydraulic cylinder for pushing (9), thereby removing the buried pipe (4) and casing (5). are simultaneously propelled by the propulsion holder (6), the auger screw (7) is moved forward together with the trolley (3), and once a single buried pipe is propelled by this movement, the single buried pipes are added one after another, and the casing is (5) and auger screw (7) are also added one after another to propel the underground pipes. - For example, when the underground pipes (4a) and (4b) are propelled alone, the propulsion reaction force acting on the underground pipes reaches a dangerous value. If this happens, install a slightly shorter buried pipe (4G) in the buried pipe and a normal length single casing with an intermediate push device (A) in the casing (
5a) by raising its intermediate push lever (11) and attaching each one, and the rear ends of the buried pipe unit (4C) and casing unit (5a) are held in the propulsion holder (6). In this way, the buried pipe alone (4a
), (4b), and (4c), the continuous buried pipe (4) is
The short length of the buried pipe unit (4C) is the unit next to the front (4b)
A space (d) is provided between the pipes, and the pipes are divided into the front buried pipes (4a), (4b) and the rear buried pipe (4C) with the space (d) as a boundary.

この分割状態で元押シリンダ（９）を伸長駆動すれば、
その押圧力は、推進シリンダ（６）からケーシング単体
（５ａ）、中押しレバー（１１）−−−−を経て前方埋
設管（４ａ）、（４ｂ）の後端へと、推進ホルダ（６）
から後方埋設管（４Ｇ）の後端へ分割伝達されて、それ
ぞれ推進させ、その際後方埋設管（４ｃ）は、前方埋設
管（４ａ）。If the main push cylinder (9) is driven to extend in this divided state,
The pushing force is applied from the propulsion cylinder (6) to the casing unit (5a), through the middle push lever (11), to the rear end of the front buried pipes (4a) and (4b), and to the propulsion holder (6).
The information is transmitted from the rear buried pipe (4G) to the rear end of the rear buried pipe (4G) and propels each of them. At this time, the rear buried pipe (4c) is transmitted to the rear end of the rear buried pipe (4G).

（４ｂ）と間隔（ｄ）で分断されて推進されるから前方
埋設管の押圧反力を受けず、自己の押圧反力のみを受け
るに止まるから、従来のように割れる危険はない。埋設
管単体（４Ｃ）が推進されたら、通常長さの新たな埋設
管単体、中押し装置（Ａ）のないケーシング単体及びオ
ーガスクリユー単体を順次継足して上記と同様の分割推
進を繰返していく。(4b) and the interval (d) and are propelled, so they do not receive the pressure reaction force of the front buried pipe and only receive their own pressure reaction force, so there is no risk of cracking as in the conventional case. Once the single buried pipe (4C) is propelled, repeat the same divisional promotion as above by sequentially adding new single buried pipes of normal length, single casings without intermediate push device (A), and single single auger screws. .

所期の管推進がなされたら、該ケーシング（５）を若干
後方へ引き戻し、起立する中押しレバー（１１）−−−
−を後部埋設管単体（４Ｃ）がわに移動させて倒伏可能
にし、ついで油圧シリンダ（１５）、（１５）の縮小駆
動により摺動リング（１３）を前方へ移動させ、それに
より連結棒（１４）−−を介して中押レバー（１１）−
−−一を第２図反時計方向へ倒伏させ、その状態でケー
シング（５）を埋設管から回収する。When the desired tube propulsion is achieved, pull the casing (5) back slightly and press the intermediate push lever (11) to stand up.
- is moved to the side of the rear buried pipe (4C) so that it can be laid down, and then the sliding ring (13) is moved forward by the reduction drive of the hydraulic cylinders (15), (15), and the connecting rod (4C) is then moved forward. 14)-- through the middle push lever (11)-
---1 is laid down counterclockwise in Figure 2, and the casing (5) is recovered from the buried pipe in that state.

本発明における起伏自在の中押し部材は、上側における
油圧シリンダ（１５）等の駆動手段を除いた中押しレバ
ー（１１）であって１回収時にケーシング（５）を引き
抜くと、後方埋設管（４Ｇ）の前端に押されて自動的に
倒伏するものであってもよい、又その場合、中押しレバ
ー（１１）及びストッパー板（１２）のいずれか一方に
磁石を取付け、中押しレバー（１１）をストッパー板（
１２）に吸着させてその起立状態を保持させるようにす
ることもよい。The movable middle push member of the present invention is a middle push lever (11) excluding a driving means such as a hydraulic cylinder (15) on the upper side, and when the casing (5) is pulled out during one recovery, the rear buried pipe (4G) It may be pushed by the front end and automatically fall down. In that case, a magnet is attached to either the middle push lever (11) or the stopper plate (12), and the middle push lever (11) is moved to the stopper plate (12).
12) may be adsorbed to maintain its upright state.

（発明の効果） 本発明の管理設装置における分割推進機構によれば、極
めて簡単な構成となり、しかも元押し手段により連続埋
設管及びケーシングの各後端を同時に押圧する単一推進
操作により能率的に管推進を行うことが可能となり、又
推進においては１元押し手段の押圧力を所要位置で分断
した前方埋設管及び後方埋設管にそれぞれ分割伝達して
互に独立に推進させ、それにより後方埋設管に対する前
方埋設管からの押圧反力を遮断して、後方埋設管の強力
な圧縮による割れを防止することができるのである。(Effects of the Invention) According to the split propulsion mechanism in the management equipment of the present invention, the configuration is extremely simple, and moreover, it is efficient due to the single propulsion operation in which each rear end of the continuous buried pipe and the casing is simultaneously pressed by the original pushing means. In addition, in propulsion, the pushing force of the single pushing means is transmitted to the front buried pipe and the rear buried pipe, which are separated at the required positions, so that they are propelled independently of each other. By blocking the pressure reaction force from the front buried pipe against the buried pipe, it is possible to prevent the rear buried pipe from cracking due to strong compression.

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

図面は本発明の実施例を示し、第１図は管理設装置の一
部縦断側面図、第２図は中押し装置部分の拡大縦断側面
図、第３図は第２図のｍ−ｍ線断面図である。 １−一一一元押し駆動装置、４−−−一連続埋設管。 ４ａ、４ｂ、４ｃｍ−−一理設管単体、５−−−−ケー
シング、６−−−−推進ホルダ、７−−−−オーガスタ
リユー、９−−−一元押し用油圧シリンダ、１１−−−
一中押しレバー。The drawings show an embodiment of the present invention, and FIG. 1 is a partial vertical side view of the management equipment, FIG. 2 is an enlarged vertical side view of the intermediate push device, and FIG. 3 is a cross-sectional view taken along the line mm in FIG. 2. It is a diagram. 1-1 one-way push drive device, 4--one continuous buried pipe. 4a, 4b, 4cm---Single installation pipe, 5---Casing, 6---Propulsion holder, 7---Augustaryyu, 9---Hydraulic cylinder for single push, 11---
One middle push lever.

Claims (1)

【特許請求の範囲】 埋設管単体を順次継足してなる連続埋設管内にケーシン
グを挿通すると共に該ケーシング内にオーガスクリュー
を回転自在に挿通し、上記連続埋設管の先端地盤を掘削
しつつ該連続埋設管を地中に押しこむ管理設装置におい
て、 上記連続埋設管及びケーシングの各後端を同時に押圧す
る元押し手段を備え、 上記連続埋設管の所要位置における前後隣り合う両埋設
管単体間を分断し、上記ケーシングの外周面に起伏自在
に設けた中押し部材を上記分断位置における前部埋設管
単体の後端に前方押圧可能に当接した、 管埋設装置における分割推進機構。[Scope of Claims] A casing is inserted into a continuous buried pipe formed by sequentially joining single buried pipes, and an auger screw is rotatably inserted into the casing, and the ground at the tip of the continuous buried pipe is excavated while the continuous buried pipe is inserted. A management and installation device for pushing underground pipes into the ground is equipped with a source pushing means for simultaneously pressing the rear ends of the continuous underground pipe and the casing, and is capable of pushing between two adjacent underground pipes at a desired position of the continuous underground pipe. A divided propulsion mechanism in a pipe burying device, wherein an intermediate pushing member which is divided and provided on the outer circumferential surface of the casing so as to be freely ups and downs is brought into contact with the rear end of the single front buried pipe at the dividing position so as to be able to press forward.