JP3805479B2 - Small diameter pipe burying equipment - Google Patents

Small diameter pipe burying equipment Download PDF

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Publication number
JP3805479B2
JP3805479B2 JP14371497A JP14371497A JP3805479B2 JP 3805479 B2 JP3805479 B2 JP 3805479B2 JP 14371497 A JP14371497 A JP 14371497A JP 14371497 A JP14371497 A JP 14371497A JP 3805479 B2 JP3805479 B2 JP 3805479B2
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JP
Japan
Prior art keywords
pipe
drive unit
propulsion
view
buried
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.)
Expired - Fee Related
Application number
JP14371497A
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Japanese (ja)
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JPH10331581A (en
Inventor
野 衛 浜
葉 利 康 秋
諭 一 林
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.)
Sanwa Kizai Co Ltd
Original Assignee
Sanwa Kizai Co Ltd
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Filing date
Publication date
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Priority to JP14371497A priority Critical patent/JP3805479B2/en
Publication of JPH10331581A publication Critical patent/JPH10331581A/en
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Publication of JP3805479B2 publication Critical patent/JP3805479B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は管埋設装置に係り、特に小口径管の埋設に用いる管埋設装置に関する。
【0002】
【従来の技術】
上・下水道管や電線管等の比較的小径の管を地中に水平方向に埋設する手段として、従来から地表より開削した立坑内に管を押進して地中に埋設する管埋設装置を設置し、この装置により管の後端を押圧して埋設したのち次の管を継足しながら順次押入埋設する手段が用いられている。
【0003】
【発明が解決しようとする課題】
しかして近年においては、住宅地付近のような狭隘な現場での施工が増えており、作業現場、特に管埋設装置を設置するための立坑を掘削するスペースの制限が著しく、大径の立坑を掘削することが困難になっている。
【0004】
そのため上記のような条件下で掘削された小径の立坑では、従来一般に使用されている管埋設装置を設置することが難しく、そのため上記のような場合には小さい駆動力により押入し得る小径のパイロット管を推進させたあとにこのパイロット管に追従させて管を押入置換して埋設する、所謂2工程式の管埋設装置が装置自体比較的小型であるとの理由により広く採用されているが、これによると作業手順が煩雑となり、工期も延びるという問題点があった。
【0005】
【課題を解決するための手段】
本発明は上記従来技術の問題点を解決することを課題としてなされたもので、狭隘な作業現場であって小径の立坑しか掘削し得ない場合であっても管埋設装置を内設して管の埋設を行うことができるようにすることにある。
【0006】
上記課題を解決する手段として本発明は、地中に埋設すべき管の後端を押圧して地中に埋設する小口径管の埋設装置において、立坑内に設置されたガイドフレームに推進本体を前後方向移動可能に支持し、前記推進本体に対し掘削用駆動力を与える駆動部を管埋設時に駆動力を伝達し得る正規の位置と管継足し時における上方退避位置とにわたり上下動自在に設けたことにある。
【0007】
こうしたことにより、管のセット時には駆動部が上方に退避した位置におかれるので継足し用の管を駆動部に邪魔されることなく行うことができ、狭い立坑内であっても管のセット作業を容易に行うことができるので、従来の装置の使用が可能となる。
【0008】
【発明の実施の形態】
以下、本発明を図面に示す実施の形態を参照して説明する。
【0009】
図1(A)〜(C)に示すように、地表から掘削された立坑1内に設置されるガイドフレーム2は、管埋設方向に向いて水平に配置される左右のガイドフレーム部3,3と、管埋設方向とは反対側の後端部に立ち上がる立壁部4,4とを有し、上記ガイドレール部3,3に推進本体5の両端下面が跨架載装されて管埋設方向に移動自在とされている。
【0010】
上記推進本体5は、その上部左右に立上部6,6があってその間が埋設すべき管7の後端が嵌合し得る嵌合凹部8とされ、この凹部8の左右の内側面には後述する駆動部9の下部両側部がスライド自在に嵌合するガイド溝10,10が形成されている。
【0011】
上記推進本体5の左右の立上部6,6には、推進シリンダ11,11のシリンダ部12,12が挿通して固定自在とされ、推進シリンダ11,11のピストンロッド13,13は前記ガイドフレーム2の立壁部4,4に固定されており、前記シリンダ部12の図1(C)において左側に圧油を供給することによりピストンロッド13に対しシリンダ部12が推進本体5と共に図において左行し、右側に圧油を供給することによりシリンダ部12が推進本体5と共に復帰するようになされている。
【0012】
上記推進シリンダ11,11は、実公平4−17670号公報に示したような推進装置を採用したもので、この推進装置の詳細は上記公報に記載されているので図示は省略するが、この推進装置は推進シリンダ11のシリンダ部12の前部および後部にそれぞれ係合部を設けるとともに推進本体5側に前記係合部に対応する係合部を設け、これら係合部同士を係止手段により係止することによりシリンダ部12が前後に摺動した位置で推進本体5と固定するようにし、推進本体5を2回に分けて推進させるようになされている。
【0013】
前記ガイドフレーム2の後方上部には、管7に挿通するオーガスクリュー14に掘削回転力を与えるための駆動部9が掘削時の正規の位置とそれより上方への退避位置とをとり得るように上下動可能に設けられている。
【0014】
すなわちガイドフレーム2の後部の左右の立壁部4,4の上端に両ロッド型の左右の駆動部昇降用シリンダ15,15のピストンロッド16,16の下端が固定立設され、これら左右のシリンダ15,15のピストンロッド16,16の上端間は連結部材17により結合されている。
【0015】
上記駆動部9は、図3にその一例の断面図を示すように、縦長薄箱状のケース18の上部一側にモータ19が取付けられ、ケース18の下部にはオーガスクリュー14を含む管7の後端が嵌入し得るよう前側が開口された円筒体20が軸受21,21を介して回転自在に設けられており、この円筒体20の後部中心位置にはオーガスクリュー14の後端と連結してこれに回転を与える出力軸22がアーム23を介しその端部の円環部24の内周がケース18に旋回ベアリング24により円筒体20と共に回転するように設けられている。
【0016】
上記アーム23の円環部24の外周にはギヤ25が形成されており、このギヤ25と前記モータ19の出力軸26上のギヤ27とが中間ギヤ28,29,30群を介して回転が伝達されるようになっている。
【0017】
上記駆動部9の軸方向両側部には吊持部31,31が水平方向に突設されており、前記昇降用シリンダ15の下端位置に設けられたフランジ32,32が前記吊持部31,31の下面側から係合して昇降用シリンダ15,15の上昇により図1(B),(C)のように上昇して退避位置におかれるようになっている。
【0018】
図において7′は既に地中に埋入された管を示し、14′はその内部に挿通されているオーガスクリューを示す。
【0019】
次に上記実施の形態の作用を図4〜図10を参照して説明する。
【0020】
図4(A),(B)は先行の管7′を既に地中に埋入し、推進シリンダ11,11を短縮させて推進本体5を後方に移動させ、駆動部昇降用シリンダ15,15を上昇させてそのフランジ32,32が駆動部9の吊持部31,31を押し上げて上方に退避させた状態を示している。
【0021】
この状態において、新たな管7をオーガスクリュー14と共に立坑1内に図1および図4(A)のように水平面内で斜めの姿勢で吊り下ろし、駆動部9の下端を越えたところまで吊り下ろしたときケーブル、油圧ホース等を継足す。その継足し作業が終了したら管7を図5(A)に矢印で示す方向に水平面内で旋回させ、次いで図6(B)で示すように下降させる。
【0022】
上記管7が既設の管7′と軸線が一致したら図7(B)の矢印の方向へ移動させ、既設の管7′側のオーガスクリュー14′に次のオーガスクリュー14を継足すとともに管7′と7とを接合する。
【0023】
こうして管の継足しが終了したら図8(B)のように駆動部昇降用シリンダ15,15を下降動させて駆動部9を降下させ、その下端を推進本体5のガイド溝10,10に嵌合させる。
【0024】
次いで図9(B)の矢印方向に推進シリンダ11,11を伸長させて駆動部9の出力軸22とオーガスクリュー14とを連結し、図2および図10(A)、(B)の状態となって掘削推進準備が完了する。
【0025】
したがって上記管7のセット時には駆動部9は上方に退避した位置におかれた状態で所定の接続位置へ吊り込むことができ、既設管7′への継足し完了後に駆動部9を所定の位置に降下させて管7内のオーガスクリュー14に出力軸22を連結すればよく、駆動部9が置かれる分、立坑1内の内のり寸法が小さくてよいことになる。なお、本発明は、前述の2工程式の管埋設装置に適用すれば、同装置の利点を一層発揮させることができる。
【0026】
【発明の効果】
以上説明したように本発明によれば、立坑内に設置されたガイドフレームに推進本体を前後方向移動可能に支持し、前記推進本体に対し掘削用駆動力を与える駆動部を管埋設時に駆動力を伝達し得る正規の位置と管継足し時における上方退避位置とにわたり上下動自在に設けたことにより、駆動部が比較的大型となる1工程式の管埋設装置においても小径の立坑内に設置することが可能となり、管の継足し時にも駆動部を上昇退避させた状態で行えるので継足し作業を支障なく行うことができる。
【図面の簡単な説明】
【図1】(A)〜(C)は本発明の一実施形態の管吊込み時の状態を示し、(A)は平面図、(B)は側面図、(C)は正面図。
【図2】(A)〜(C)は同じく継足し完了時の状態を示し、(A)は平面図、(B)は側面図、(C)は正面図。
【図3】図1、図2における駆動部の拡大断面図。
【図4】(A)、(B)は管吊込み時の状態を示す平面図および側面図。
【図5】(A)、(B)は管吊込み途中の状態を示す平面図および側面図。
【図6】(A)、(B)は管の軸心を既設管に一致させた状態の平面図および側面図。
【図7】(A)、(B)は管を継足し位置にセットした状態の平面図および側面図。
【図8】(A)、(B)は管を継足した状態の平面図および側面図。
【図9】(A)、(B)は駆動部を下降させて推進本体に連結した状態の平面図および側面図。
【図10】(A)、(B)は管の押進可能な状態とした平面図および側面図。
【符号の説明】
1 立坑
2 ガイドフレーム
3 ガイドレール部
4 立壁部
5 推進本体
6 立上部
7,7′ 管
8 凹部
9 駆動部
10 ガイド溝
11 推進シリンダ
14 オーガスクリュー
15 駆動部昇降用シリンダ
17 連結部材
19 モータ
20 円筒体
23 アーム
24 円環部
25,27,28,29,30 ギヤ
31 吊持部
32 フランジ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pipe embedding apparatus, and more particularly to a pipe embedding apparatus used for embedding a small diameter pipe.
[0002]
[Prior art]
As a means to embed relatively small-diameter pipes such as water and sewer pipes and electric pipes in the ground in the horizontal direction, a pipe burying device that pushes pipes into shafts that have been excavated from the ground surface and is buried in the ground. After installation, the rear end of the pipe is pressed by this device and buried, and then the next pipe is successively pushed and buried while the next pipe is added.
[0003]
[Problems to be solved by the invention]
In recent years, however, there has been an increase in construction in confined areas such as the vicinity of residential areas, and there has been a significant limitation in the space for excavating shafts for installing work sites, especially pipe burying devices. Drilling has become difficult.
[0004]
For this reason, it is difficult to install a conventionally used pipe burying device in a small-diameter shaft excavated under the above-described conditions. Therefore, in such a case, a small-diameter pilot that can be pushed in with a small driving force. A so-called two-step type pipe embedment device that pushes and replaces the pipe after propelling the pipe and then embeds the pipe is widely adopted because the device itself is relatively small, According to this, there is a problem that the work procedure becomes complicated and the construction period is extended.
[0005]
[Means for Solving the Problems]
The present invention has been made in order to solve the above-described problems of the prior art, and even in a narrow work site where only a small-diameter shaft can be excavated, a pipe burying device is installed in the pipe. It is to be able to bury.
[0006]
As a means for solving the above-mentioned problems, the present invention provides a propulsion body for a guide frame installed in a shaft in a small-diameter pipe embedding apparatus that embeds in the ground by pressing the rear end of the pipe to be buried in the ground. A drive unit that supports the excavator main body so as to be movable in the front-rear direction and is provided to move up and down between a normal position where the driving force can be transmitted when the pipe is embedded and an upper retreat position when the pipe is added. That is.
[0007]
As a result, when the pipe is set, the drive unit is placed in a position where it is retracted upward, so that the extension pipe can be performed without being obstructed by the drive unit, and the pipe can be set even in a narrow shaft. Therefore, it is possible to use a conventional apparatus.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to embodiments shown in the drawings.
[0009]
As shown in FIGS. 1 (A) to 1 (C), the guide frame 2 installed in the shaft 1 excavated from the ground surface has left and right guide frame parts 3 and 3 arranged horizontally in the pipe embedding direction. And standing wall portions 4 and 4 rising at the rear end portion on the opposite side to the tube embedding direction, and the lower surfaces of both ends of the propulsion main body 5 are straddled and mounted on the guide rail portions 3 and 3 in the tube embedding direction. It is supposed to be movable.
[0010]
The propulsion main body 5 has upright portions 6 and 6 on the left and right of the upper portion, and a fitting recess 8 into which the rear end of the pipe 7 to be embedded can be fitted. Guide grooves 10 and 10 are formed in which lower side portions of the drive unit 9 described later are slidably fitted.
[0011]
The cylinder portions 12 and 12 of the propulsion cylinders 11 and 11 are inserted into and fixed to the left and right upright portions 6 and 6 of the propulsion body 5, and the piston rods 13 and 13 of the propulsion cylinders 11 and 11 are fixed to the guide frame. 2 is fixed to the upright wall portions 4 and 4, and the cylinder portion 12 is moved to the piston rod 13 along with the propulsion body 5 in the left direction by supplying pressure oil to the left side of the cylinder portion 12 in FIG. The cylinder portion 12 is returned together with the propulsion body 5 by supplying pressure oil to the right side.
[0012]
The propulsion cylinders 11 and 11 employ a propulsion device such as that disclosed in Japanese Utility Model Publication No. 4-17670. The details of the propulsion device are described in the above-mentioned gazette, so illustration is omitted. The apparatus is provided with engaging portions at the front portion and the rear portion of the cylinder portion 12 of the propulsion cylinder 11 and an engaging portion corresponding to the engaging portion on the propulsion main body 5 side. By locking, the cylinder portion 12 is fixed to the propulsion main body 5 at a position where it slides back and forth, and the propulsion main body 5 is propelled in two steps.
[0013]
In the upper rear part of the guide frame 2, a drive unit 9 for applying excavation rotational force to the auger screw 14 inserted through the pipe 7 can take a normal position during excavation and a retreat position upward from it. It can be moved up and down.
[0014]
That is, the lower ends of the piston rods 16 and 16 of the left and right drive unit elevating cylinders 15 and 15 of both rod types are fixedly erected on the upper ends of the left and right standing wall portions 4 and 4 at the rear portion of the guide frame 2. The upper ends of the 15 piston rods 16 are connected by a connecting member 17.
[0015]
As shown in FIG. 3, the drive unit 9 has a motor 19 attached to the upper part of a vertically thin box-like case 18, and a pipe 7 including an auger screw 14 at the lower part of the case 18. A cylindrical body 20 having an opening on the front side so that the rear end can be fitted is rotatably provided via bearings 21 and 21, and is connected to the rear end of the auger screw 14 at the center of the rear portion of the cylindrical body 20. An output shaft 22 that gives rotation to the cylindrical body 20 is provided so that the inner periphery of the annular portion 24 at the end thereof is rotated together with the cylindrical body 20 by the swivel bearing 24 via the arm 23.
[0016]
A gear 25 is formed on the outer periphery of the annular portion 24 of the arm 23, and the gear 25 and the gear 27 on the output shaft 26 of the motor 19 rotate through a group of intermediate gears 28, 29, and 30. It is to be transmitted.
[0017]
Suspension portions 31, 31 protrude in the horizontal direction on both sides in the axial direction of the drive unit 9, and flanges 32, 32 provided at the lower end position of the elevating cylinder 15 include the suspension portions 31, 31. 1 is engaged from the lower surface side of the lift 31 and is lifted as shown in FIGS.
[0018]
In the figure, 7 'indicates a tube already buried in the ground, and 14' indicates an auger screw inserted into the tube.
[0019]
Next, the operation of the above embodiment will be described with reference to FIGS.
[0020]
4 (A) and 4 (B), the preceding pipe 7 'is already buried in the ground, the propulsion cylinders 11 and 11 are shortened, the propulsion body 5 is moved backward, and the drive unit elevating cylinders 15 and 15 are moved. And the flanges 32, 32 push up the suspending portions 31, 31 of the drive unit 9 to retract upward.
[0021]
In this state, the new pipe 7 is suspended in the shaft 1 together with the auger screw 14 in a slanting posture in the horizontal plane as shown in FIGS. 1 and 4A, and suspended to the position beyond the lower end of the drive unit 9. When connecting, add cables, hydraulic hoses, etc. When the addition work is completed, the pipe 7 is swung in the horizontal plane in the direction shown by the arrow in FIG. 5A, and then lowered as shown in FIG. 6B.
[0022]
When the axis of the pipe 7 coincides with the existing pipe 7 ', the pipe 7 is moved in the direction of the arrow in FIG. 7B, and the next auger screw 14 is added to the auger screw 14' on the existing pipe 7 'side and the pipe 7 'And 7 are joined.
[0023]
When the pipe extension is completed in this way, as shown in FIG. 8B, the drive unit elevating cylinders 15 and 15 are moved downward to lower the drive unit 9 and the lower ends thereof are fitted into the guide grooves 10 and 10 of the propulsion body 5. Combine.
[0024]
Next, the propulsion cylinders 11 and 11 are extended in the direction of the arrow in FIG. 9B to connect the output shaft 22 of the drive unit 9 and the auger screw 14, and the states of FIG. 2, FIG. 10A and FIG. The drilling preparation is completed.
[0025]
Therefore, when the pipe 7 is set, the drive unit 9 can be hung to a predetermined connection position in a state of being retracted upward, and the drive unit 9 is moved to a predetermined position after completion of the addition to the existing pipe 7 '. The output shaft 22 may be connected to the auger screw 14 in the pipe 7 and the inner dimension in the shaft 1 may be reduced by the amount of the drive unit 9. In addition, if this invention is applied to the above-mentioned two-step type pipe embedding apparatus, the advantage of the apparatus can be exhibited further.
[0026]
【The invention's effect】
As described above, according to the present invention, the propulsion main body is supported on the guide frame installed in the shaft so as to be movable in the front-rear direction, and the driving portion that applies the driving force for excavation to the propulsion main body is driven when the pipe is embedded. Even in a one-step type pipe burying device where the drive part is relatively large, it is installed in a small-diameter shaft through a normal position where it can transmit and an upward retracted position when the pipe is added. Since the drive unit can be lifted and retracted even when the pipe is added, the extension work can be performed without any trouble.
[Brief description of the drawings]
FIGS. 1A to 1C show a state in which a pipe is suspended according to an embodiment of the present invention, FIG. 1A is a plan view, FIG. 1B is a side view, and FIG.
2 (A) to (C) show the state when the transfer is completed, (A) is a plan view, (B) is a side view, and (C) is a front view. FIG.
3 is an enlarged cross-sectional view of a drive unit in FIGS. 1 and 2. FIG.
4A and 4B are a plan view and a side view showing a state when the pipe is suspended. FIG.
FIGS. 5A and 5B are a plan view and a side view showing a state in which a pipe is suspended. FIG.
FIGS. 6A and 6B are a plan view and a side view of a state in which the axis of the tube is aligned with the existing tube.
FIGS. 7A and 7B are a plan view and a side view of a state in which a tube is set in an extended position.
FIGS. 8A and 8B are a plan view and a side view of a state where a tube is added. FIG.
FIGS. 9A and 9B are a plan view and a side view showing a state where the drive unit is lowered and connected to the propulsion body. FIGS.
FIGS. 10A and 10B are a plan view and a side view in which the tube can be pushed forward.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vertical shaft 2 Guide frame 3 Guide rail part 4 Standing wall part 5 Propulsion main body 6 Standing upper part 7,7 'Pipe 8 Recessed part 9 Drive part 10 Guide groove 11 Propulsion cylinder 14 Auger screw 15 Drive part raising / lowering cylinder 17 Connecting member 19 Motor 20 Cylinder Body 23 Arm 24 Ring part 25, 27, 28, 29, 30 Gear 31 Suspension part 32 Flange

Claims (1)

地中に埋設すべき管の後端を押圧して地中に埋設する小口径管の埋設装置において、立坑内に設置されたガイドフレームに推進本体を前後方向移動可能に支持し、前記推進本体に対し掘削用駆動力を与える駆動部を管埋設時に駆動力を伝達し得る正規の位置と管継足し時における上方退避位置とにわたり上下動自在に設けたことを特徴とする小口径管埋設装置。In an embedding device for a small-diameter pipe that is buried in the ground by pressing the rear end of the pipe to be buried in the ground, the propulsion body is supported by the guide frame installed in the shaft so as to be movable in the front-rear direction. A small-diameter pipe burying device characterized in that a drive unit for providing a driving force for excavation is provided so as to be movable up and down over a normal position where the driving force can be transmitted when the pipe is buried and an upper retreat position when the pipe is added .
JP14371497A 1997-06-02 1997-06-02 Small diameter pipe burying equipment Expired - Fee Related JP3805479B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14371497A JP3805479B2 (en) 1997-06-02 1997-06-02 Small diameter pipe burying equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14371497A JP3805479B2 (en) 1997-06-02 1997-06-02 Small diameter pipe burying equipment

Publications (2)

Publication Number Publication Date
JPH10331581A JPH10331581A (en) 1998-12-15
JP3805479B2 true JP3805479B2 (en) 2006-08-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP14371497A Expired - Fee Related JP3805479B2 (en) 1997-06-02 1997-06-02 Small diameter pipe burying equipment

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JP (1) JP3805479B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002309891A (en) * 2001-04-13 2002-10-23 Sanwa Kizai Co Ltd Small-diameter pipe embedding apparatus
JP2003027886A (en) * 2001-07-23 2003-01-29 Sanwa Kizai Co Ltd Device for burying pipe

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JPH10331581A (en) 1998-12-15

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