JP3120142U - Tube structure - Google Patents

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JP3120142U
JP3120142U JP2006000026U JP2006000026U JP3120142U JP 3120142 U JP3120142 U JP 3120142U JP 2006000026 U JP2006000026 U JP 2006000026U JP 2006000026 U JP2006000026 U JP 2006000026U JP 3120142 U JP3120142 U JP 3120142U
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tube
inner tube
pipe
cap nut
fitted
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武彦 所
孝司 伊藤
淳 中根
佳人 沼田
峰雄 村田
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日本綜合防水株式会社
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Abstract

【課題】容易な接続で外管及び内管を独立して軸心方向に移動可能とすると共に、内外管の間隙に信号ケーブル等を配設可能とした単位管の管構造を提供する。
【解決手段】少なくとも内管１０Ａと外管２０Ａとを備え、長手方向に順次連結されると共に、連結された内管１０Ａ及び外管２０Ａはそれぞれ相対的に軸心方向に押し引き自在とされた単位管の管構造であって、内管１０Ａの一方端側の外周には、袋ナット４０が摺動可能に外嵌され、該袋ナット４０の内周面には、雌ネジ部４１が形成され、この雌ネジ部４１は内管１０Ａの他方端側の外周面に形成された雄ネジ部１４と螺合可能とされ、単位管の連結の際には、内管１０Ａの一方端と隣接する内管１０Ａの他方端とが嵌合されると共に、前記袋ナット４０が隣接する内管１０Ａの雄ネジ部１４に螺合される構成とする。
【選択図】図１Provided is a unit tube structure in which an outer tube and an inner tube can be independently moved in the axial direction with easy connection, and a signal cable or the like can be disposed in a gap between the inner and outer tubes.
At least an inner tube 10A and an outer tube 20A are connected in order in the longitudinal direction, and the connected inner tube 10A and outer tube 20A are relatively pushable and pullable in the axial direction. In the pipe structure of the unit pipe, a cap nut 40 is slidably fitted on the outer periphery on one end side of the inner tube 10A, and a female screw portion 41 is formed on the inner peripheral surface of the cap nut 40. The female screw portion 41 can be screwed with the male screw portion 14 formed on the outer peripheral surface on the other end side of the inner tube 10A, and is adjacent to one end of the inner tube 10A when connecting the unit tubes. The other end of the inner tube 10A is fitted, and the cap nut 40 is screwed into the male thread portion 14 of the adjacent inner tube 10A.
[Selection] Figure 1

Description

本考案は、管構造に関し、詳しくは、地盤改良用のロッド、地質調査用ロッドなどの土木用管装置における単位管の管構造に関するものである。   The present invention relates to a pipe structure, and more particularly to a pipe structure of a unit pipe in a civil engineering pipe device such as a soil improvement rod and a geological survey rod.

内管及び外管を同心的に有する単位管を備えた土木用管装置は、たとえば地盤改良用のロッドとして多用されている。すなわち、内管内及び内外管の間隙を利用して、地盤改良材料（薬液やセメントミルクなど）、水、あるいはエアを地盤内に送給したり、排泥を地上に排出するために利用されている。
この種の単位管において、内管の接続は差込方式（嵌合接続）で、かつ外管の連結はねじ込み方式（螺合接続）が一般的である。外管の連結の場合には、これに換えてピン方式もある。また、外管及び内管が共にねじ込み方式というものもある（例えば、特許文献１参照）。
前者の二つは、内管が差込方式によるものであるから、外管及び内管を独立して軸心方向に移動させることができない構造になっている（押し引き不可能）。一方、後者は、内管もねじ込み方式であるため、外管及び内管を独立して軸心方向に移動させることができる構造となっている。
特許３４０４４６８号公報 A civil engineering pipe device including a unit pipe having an inner pipe and an outer pipe concentrically is frequently used as a rod for ground improvement, for example. In other words, it is used to feed ground improvement materials (chemicals, cement milk, etc.), water, or air into the ground using the gap between the inner and outer pipes, and to discharge the mud to the ground. Yes.
In this type of unit tube, the connection of the inner tube is generally a plug-in method (fitting connection), and the connection of the outer tube is a screw-in method (screw connection). In the case of connection of the outer tube, there is a pin system instead. Also, there is a type in which the outer tube and the inner tube are both screwed (for example, see Patent Document 1).
The former two have a structure in which the outer tube and the inner tube cannot be independently moved in the axial direction because the inner tube is of a plug-in type (impossible to push and pull). On the other hand, the latter has a structure in which the outer tube and the inner tube can be independently moved in the axial direction because the inner tube is also screwed.
Japanese Patent No. 3404468

しかしながら、超高圧の切削水と圧縮空気によって地盤の切削、排泥を行い、同時に硬化材を混合撹拌して固結体を造成する高圧噴射攪拌工法、あるいは超高圧の硬化材によって地盤の切削、排泥を行いつつ、混合攪拌して固結体を造成する工法における改良域付近の地盤内圧力の計測方法を電気信号方式によって行なう場合、脱着時に左右の回転を要する外管及び内管には信号ケーブルを配設することはできないという問題があった。
そこで、本考案の主たる課題は、容易な接続で外管及び内管を独立して軸心方向に移動可能とすると共に、内外管の間隙に信号ケーブル等を配設可能とした単位管の管構造を提供することにある。 However, the ground is cut and drained with ultra-high pressure cutting water and compressed air, and at the same time the hardened material is mixed and stirred to form a consolidated body, or the ground is cut with an ultra-high pressure hardened material, When measuring the internal pressure in the vicinity of the improved zone in the method of creating a consolidated body by mixing and stirring while draining mud, using the electrical signal method, the outer and inner pipes that require left and right rotation at the time of desorption are used. There was a problem that a signal cable could not be provided.
Accordingly, the main problem of the present invention is that the outer tube and the inner tube can be moved independently in the axial direction with an easy connection, and the unit cable tube in which the signal cable can be disposed in the gap between the inner and outer tubes. To provide a structure.

上記課題を解決した本考案は、次のとおりである。
＜請求項１記載の考案＞
請求項１記載の考案は、少なくとも内管と外管とを備え、長手方向に順次連結されると共に、連結された内管及び外管はそれぞれ相対的に軸心方向に押し引き自在とされた単位管の管構造であって、内管の一方端側の外周には、袋ナットが摺動可能に外嵌され、該袋ナットの内周面には、雌ネジ部が形成され、この雌ネジ部は内管の他方端側の外周面に形成された雄ネジ部と螺合可能とされ、単位管の連結の際には、内管の一方端と隣接する内管の他方端とが嵌合されると共に、前記袋ナットが隣接する内管の雄ネジ部に螺合される構成とされた、ことを特徴とする管構造である。 The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
The device according to claim 1 includes at least an inner tube and an outer tube, which are sequentially connected in the longitudinal direction, and the connected inner tube and outer tube are each relatively pushable and pullable in the axial direction. A pipe structure of a unit pipe, wherein a cap nut is slidably fitted on the outer periphery of one end side of the inner tube, and a female thread portion is formed on the inner peripheral surface of the cap nut. The threaded portion can be screwed with a male threaded portion formed on the outer peripheral surface on the other end side of the inner tube, and when connecting the unit tubes, one end of the inner tube and the other end of the adjacent inner tube are connected to each other. The tube structure is characterized in that the cap nut is screwed into a male screw portion of an adjacent inner tube while being fitted.

＜請求項２記載の考案＞
請求項２記載の考案は、内管と外管との間に、コネクタによる差込方式の信号ケーブルが挿通された、請求項１記載の管構造である。 <Invention of Claim 2>
The invention according to claim 2 is the tube structure according to claim 1, wherein a plug-in signal cable is inserted between the inner tube and the outer tube.

＜請求項３記載の考案＞
請求項３記載の考案は、内管の軸心と外管の軸心とが偏心するように内管と外管が配設された、請求項１又は２記載の管構造である。 <Invention of Claim 3>
The invention described in claim 3 is the tube structure according to claim 1 or 2, wherein the inner tube and the outer tube are arranged so that the axis of the inner tube and the axis of the outer tube are eccentric.

＜請求項４記載の考案＞
請求項４記載の考案は、内管の一方端には凸部、他方端にはこの凸部と嵌合する凹部が形成され、これら凸部と凹部により隣接する内管と嵌合される構成とされた、請求項１乃至３のいずれか１項記載の管構造である。 <Invention of Claim 4>
The invention according to claim 4 has a configuration in which a convex portion is formed at one end of the inner tube, and a concave portion that is fitted to the convex portion is formed at the other end, and the inner tube is fitted by the convex portion and the concave portion. The pipe structure according to any one of claims 1 to 3, wherein:

＜請求項５記載の考案＞
請求項５記載の考案は、外管同士の連結は、螺合による連結とされた、請求項１乃至４のいずれか１項記載の管構造である。 <Invention of Claim 5>
The invention according to claim 5 is the tube structure according to any one of claims 1 to 4, wherein the outer tubes are connected to each other by screwing.

（作用効果）
内管の一方端側の外周には、袋ナットが摺動可能に外嵌され、該袋ナットの内周面には、雌ネジ部が形成され、この雌ネジ部は内管の他方端側の外周面に形成された雄ネジ部と螺合可能とされ、単位管の連結の際には、内管の一方端と隣接する内管の他方端とが嵌合されると共に、前記袋ナットが隣接する内管の雄ネジ部に螺合される構成とすることにより、内管の容易で確実な接続ができ、かつ連結された内管は外管に対して相対的に軸心方向に押し引き自在となる。
また、上記連結によれば、内管と外管との間に差込方式の信号ケーブルを挿通して、内管同士の連結前後においてコネクタによる連結作業が可能となる。そして、外管同士を螺合する際でも、内管や信号ケーブルも共に回転することがない。
さらに、上記連結によれば、内管の軸心と外管の軸心とが偏心するように内管と外管を配設することができ、小口径の管内部空間の有効活用が可能となる。
内管の一方端には凸部、他方端にはこの凸部と嵌合する凹部が形成され、これら凸部と凹部により隣接する内管と嵌合される構成とすることにより、内管の接続位置決めが容易で、かつ確実な接続ができる。
外管同士の連結は、螺合による連結とすることができる。 (Function and effect)
A cap nut is slidably fitted on the outer periphery of one end side of the inner tube, and a female screw portion is formed on the inner peripheral surface of the cap nut. The female screw portion is on the other end side of the inner tube. When the unit pipes are connected, one end of the inner pipe is fitted to the other end of the adjacent inner pipe, and the cap nut is connected to the male screw portion formed on the outer peripheral surface of the inner pipe. Is configured to be screwed into the male thread portion of the adjacent inner pipe, so that the inner pipe can be easily and surely connected, and the connected inner pipe is relatively axial with respect to the outer pipe. It can be pushed and pulled freely.
Moreover, according to the said connection, the insertion type | mold signal cable is inserted between an inner tube and an outer tube, and the connection operation | work by a connector becomes possible before and after the connection of inner tubes. Even when the outer tubes are screwed together, neither the inner tube nor the signal cable rotates.
Furthermore, according to the above connection, the inner tube and the outer tube can be disposed so that the axis of the inner tube and the axis of the outer tube are eccentric, and the internal space of the small-diameter tube can be effectively utilized. Become.
A convex portion is formed at one end of the inner tube, and a concave portion that is fitted to the convex portion is formed at the other end, and the inner tube is fitted to the adjacent inner tube by the convex portion and the concave portion. Connection positioning is easy and reliable connection is possible.
The connection between the outer tubes can be a connection by screwing.

本考案によれば、容易な接続で外管及び内管を独立して軸心方向に移動可能とすると共に、内外管の間隙に信号ケーブル等を配設できる等の利点がもたらされる。   According to the present invention, the outer tube and the inner tube can be independently moved in the axial direction with an easy connection, and a signal cable or the like can be provided in the gap between the inner and outer tubes.

以下、本考案の実施の形態を説明する。
本考案に係る単位管は、地盤改良用のロッドや地質調査用ロッドにおける先端管、中間管、基端管のうち中間管に相当し、この中間管は複数の単位管を長手方向に順次連結して構成される。この単位管は、少なくとも内管１０と外管２０とが間隙をもって組み立てられている。以下に、内管の軸心と外管の軸心とが同心となるように内管と外管を配設した実施の形態（実施形態１）と、内管の軸心と外管の軸心とが偏心するように内管と外管を配設した実施の形態（実施形態２）の説明をする。ただし、本考案はこれらに限られず、本考案の要旨の範囲内で様々な変形が可能とされるものである。 Embodiments of the present invention will be described below.
The unit tube according to the present invention corresponds to the intermediate tube among the tip tube, intermediate tube, and proximal tube in the ground improvement rod and geological survey rod, and this intermediate tube sequentially connects multiple unit tubes in the longitudinal direction. Configured. In this unit tube, at least the inner tube 10 and the outer tube 20 are assembled with a gap. In the following, an embodiment (Embodiment 1) in which the inner tube and the outer tube are arranged so that the axis of the inner tube and the axis of the outer tube are concentric, and the axis of the inner tube and the axis of the outer tube An embodiment (Embodiment 2) in which an inner tube and an outer tube are disposed so that the center is eccentric will be described. However, the present invention is not limited to these, and various modifications are possible within the scope of the gist of the present invention.

（実施形態１：同心状）
実施形態１について、図１乃至図６に基づき説明する。この単位管は、内管１０Ａと外管２０Ａとが間隙をもって同心状に組み立てられている。 (Embodiment 1: Concentric)
The first embodiment will be described with reference to FIGS. 1 to 6. In this unit tube, the inner tube 10A and the outer tube 20A are assembled concentrically with a gap.

内管１０Ａには、同心を保持するためにスペーサー３０が取付けられており、これによって内管１０Ａと外管２０Ａとの間隔が一定に保たれている。スペーサー３０は突起状であり、内管１０Ａの軸心を中心として外周上に所定の間隔をもって取付けられているため、内管１０Ａと外管２０Ａとの間には、地盤改良材料（薬液やセメントミルクなど）、水やエア等を送給することができ、また、排泥も排出することができる。なお、当然のことながら、内管１０Ａ内に地盤改良材料（薬液やセメントミルクなど）、水やエア等を送給し、排泥を排出してもよい。   A spacer 30 is attached to the inner tube 10A in order to maintain concentricity, whereby the distance between the inner tube 10A and the outer tube 20A is kept constant. Since the spacer 30 has a protruding shape and is attached to the outer periphery with a predetermined interval around the axis of the inner tube 10A, a ground improvement material (chemical solution or cement is provided between the inner tube 10A and the outer tube 20A. Milk, etc.), water, air, etc. can be fed, and waste mud can also be discharged. As a matter of course, ground improvement material (chemical solution, cement milk, etc.), water, air, etc. may be fed into the inner pipe 10A to discharge the mud.

図１及び図２に示すように、内管１０Ａの一方端には凸部１１が形成されており、他方端には、この凸部１１と嵌合する凹部１２が形成されている。内管１０Ａ同士の連結の際には、まずこれら凸部１１と凹部１２とを嵌合させるものである。これら凸部１１及び凹部１２は、それぞれ１以上の箇所で形成されてもよいが、図６に示すように、２箇所ずつの方が内管の接続位置決めが容易となるので好ましい。なお、凸部１１と凹部１２の形状については、図１１に示す歯形状、図１２に示す円弧形状、図１３に示す楔形状、図１４に示すスプライン歯列の嵌合形状等、様々な形状とすることができる。   As shown in FIGS. 1 and 2, a convex portion 11 is formed at one end of the inner tube 10 </ b> A, and a concave portion 12 that fits the convex portion 11 is formed at the other end. When connecting the inner pipes 10 </ b> A, first, the convex portions 11 and the concave portions 12 are fitted. Each of the convex portions 11 and the concave portions 12 may be formed at one or more locations. However, as shown in FIG. 6, two locations are preferred because the connection and positioning of the inner tube is facilitated. In addition, about the shape of the convex part 11 and the recessed part 12, various shapes, such as the tooth shape shown in FIG. 11, the circular arc shape shown in FIG. 12, the wedge shape shown in FIG. 13, the fitting shape of the spline tooth row shown in FIG. It can be.

また、内管１０Ａの一方端側の外周には、袋ナット４０が摺動可能に外嵌されている。袋ナット４０には、内管１０Ａの外周面と摺動する縮内径部分である摺動部４２が形成されている。そして、袋ナット４０が一方端側に摺動する際に、この摺動部４２の端部と内管１０Ａの一方端に形成された拡外径部分である段部１３の端部とが当接してそれ以上の移動が規制されるようになっている。   Further, a cap nut 40 is slidably fitted on the outer periphery on one end side of the inner tube 10A. The cap nut 40 is formed with a sliding portion 42 that is a reduced inner diameter portion that slides with the outer peripheral surface of the inner tube 10A. When the cap nut 40 slides to one end side, the end portion of the sliding portion 42 and the end portion of the stepped portion 13 which is an enlarged outer diameter portion formed at one end of the inner tube 10A are in contact with each other. As a result, further movement is restricted.

袋ナット４０の内周面には、雌ネジ部４１が螺刻されており、内管１０Ａの他方端側の外周面に螺刻された雄ネジ部１４と螺合可能となっている。   A female screw portion 41 is threaded on the inner peripheral surface of the cap nut 40 and can be screwed with the male screw portion 14 threaded on the outer peripheral surface on the other end side of the inner tube 10A.

図１乃至図３に示すように、内管１０Ａの一方端側及び他方端側の外周には、それぞれ軸心を中心とした溝が形成され、これらに弾性を有するゴム、合成樹脂等からなるＯリング１５、１６が取付けられている。図４及び図６に示すように、内管１０Ａの一方端側と、これに隣接する内管１０Ａの他方端側とが接続され、袋ナット４０が隣接する内管１０Ａの雌ネジ部４１に螺合している状態では、これらＯリング１５、１６と袋ナット４０の内周が当接し液密状態を形成するようになる。   As shown in FIGS. 1 to 3, grooves are formed around the axial center on the outer periphery on one end side and the other end side of the inner tube 10A, and these are made of rubber, synthetic resin, or the like having elasticity. O-rings 15 and 16 are attached. As shown in FIGS. 4 and 6, one end side of the inner tube 10A and the other end side of the inner tube 10A adjacent thereto are connected, and the cap nut 40 is connected to the female thread portion 41 of the adjacent inner tube 10A. In the screwed state, the O-rings 15 and 16 and the inner periphery of the cap nut 40 come into contact with each other to form a liquid-tight state.

外管２０Ａには、その一方端に雌ネジ部２１が螺刻されており、図２に示すように、他方端に形成された雄ネジ部２２と螺合するようになっている。なお、外管２０Ａ同士の接続は、図示はしないが、ピン方式でもよい。   The outer tube 20A has a female threaded portion 21 threaded at one end thereof, and is threadedly engaged with a male threaded portion 22 formed at the other end, as shown in FIG. The connection between the outer tubes 20A is not shown, but may be a pin system.

次に、この単位管の接続方法について説明する。まず、図３に示すように、内管１０Ａの一方端の凸部１１と、これに隣接する内管１０Ａの他方端の凹部１２とを嵌合させる。そして、図４に示すように、一方側の内管１０Ａの袋ナット４０を隣接する内管１０Ａの他方端側へ摺動させ移動させるとともに、袋ナット４０の雌ネジ部４１を、内管１０Ａの他方端側の外周面に螺刻された雄ネジ部１４と螺合させる。その後、図５に示すように、一方端の外管２０Ａと他方端側の外管２０Ａとを内管１０Ａに沿って移動させ、雌ネジ部２１と雄ネジ部２２とを螺合すればよい。   Next, a method for connecting the unit tubes will be described. First, as shown in FIG. 3, the convex portion 11 at one end of the inner tube 10A and the concave portion 12 at the other end of the inner tube 10A adjacent thereto are fitted. Then, as shown in FIG. 4, the cap nut 40 of one inner tube 10A is slid and moved to the other end side of the adjacent inner tube 10A, and the female thread portion 41 of the cap nut 40 is moved to the inner tube 10A. And screwed into the male threaded portion 14 threaded on the outer peripheral surface on the other end side. Thereafter, as shown in FIG. 5, the outer tube 20A at one end and the outer tube 20A at the other end are moved along the inner tube 10A, and the female screw portion 21 and the male screw portion 22 are screwed together. .

（実施形態２：偏心状）
実施形態２について、図７乃至図１０に基づき説明する。この単位管は、内管１０Ｂと外管２０Ｂとが間隙をもって偏心状に組み立てられている。 (Embodiment 2: Eccentric)
The second embodiment will be described with reference to FIGS. In this unit tube, the inner tube 10B and the outer tube 20B are assembled eccentrically with a gap.

内管１０Ｂには、位置を保持するためにスペーサー３１が取付けられており、これによって内管１０Ｂと外管２０Ｂとの間隔が一定に保たれている。スペーサー３１は突起状であり、内管１０Ｂの軸心を中心として外周上に所定の間隔をもって取付けられているため、内管１０Ｂと外管２０Ｂとの間には、地盤改良材料（薬液やセメントミルクなど）、水、やエア等を送給することができる。スペーサー３１は前述した実施の形態のスペーサー３０とは異なり、信号ケーブル５０を内管１０Ｂと外管２０Ｂとの間に挿通させるため、図１０に示すように、内管１０Ｂの軸心と外管２０Ｂの軸心とをずらすように配設している。   A spacer 31 is attached to the inner tube 10B in order to maintain the position thereof, whereby the distance between the inner tube 10B and the outer tube 20B is kept constant. Since the spacer 31 has a protruding shape and is mounted on the outer periphery with a predetermined interval around the axis of the inner tube 10B, a ground improvement material (chemical solution or cement is provided between the inner tube 10B and the outer tube 20B. Milk, etc.), water, air etc. can be fed. Unlike the spacer 30 of the above-described embodiment, the spacer 31 is inserted between the inner tube 10B and the outer tube 20B so that the signal cable 50 is inserted between the inner tube 10B and the outer tube, as shown in FIG. It is arranged so as to be offset from the axis 20B.

内管１０Ｂと外管２０Ｂとの間に挿通されている信号ケーブル５０は、一方端に雄コネクタ５１、他方端に雌コネクタ５２が形成されている。なお、これに限らず、図示はしないが、雄コネクタと雄コネクタによる差込方式、雌コネクタと雌コネクタによる差込形式でもよい。信号ケーブル５０のケーブル長としては、任意の長さに設定することができる。その他の構成については、前述した実施の形態と略同様であるため、説明を省略する。   The signal cable 50 inserted between the inner tube 10B and the outer tube 20B has a male connector 51 at one end and a female connector 52 at the other end. However, the present invention is not limited to this, and although not shown in the drawings, an insertion method using a male connector and a male connector, or an insertion type using a female connector and a female connector may be used. The cable length of the signal cable 50 can be set to an arbitrary length. Since other configurations are substantially the same as those of the above-described embodiment, the description thereof is omitted.

次に、この単位管の接続方法についてであるが、前述した実施の形態と略同様である。異なる点としては、図９に示すように、一方端の外管２０Ｂと他方端側の外管２０Ｂとを内管１０Ｂに沿って移動させ、雌ネジ部２１と雄ネジ部２２とを螺合する前に、信号ケーブル５０の雄コネクタ５１と雌コネクタ５２とを接続する必要がある点である。また、この信号ケーブル５０は、動かないようにバンドや紐等の結束部材５３，５３により結束され、内管１０Ｂに固定されている。その他については、略実施の形態と略同様であるため、説明を省略する。   Next, the unit pipe connection method is substantially the same as that of the above-described embodiment. As shown in FIG. 9, the outer tube 20B at one end and the outer tube 20B at the other end are moved along the inner tube 10B, and the female screw portion 21 and the male screw portion 22 are screwed together. This is because it is necessary to connect the male connector 51 and the female connector 52 of the signal cable 50 before the connection. The signal cable 50 is bound by binding members 53 and 53 such as a band and a string so as not to move, and is fixed to the inner tube 10B. Others are substantially the same as those in the embodiment, and the description thereof is omitted.

（他の実施の形態）
上記実施の形態は、二重管の例であるが、同様に管要素（内管、及び外管、ならびに内外管内に設けられる必要数の中間管）を組み立てた三重管以上の多重管であってもよい。 (Other embodiments)
The above embodiment is an example of a double pipe, but it is also a multi-pipe more than a triple pipe in which pipe elements (inner pipe, outer pipe, and necessary number of intermediate pipes provided in the inner and outer pipes) are assembled. May be.

実施形態１の管構造の一方端側の断面図である。2 is a cross-sectional view of one end side of the tube structure of Embodiment 1. FIG. その他方端側の断面図である。It is sectional drawing of the other end side. 隣接する単位管の連結状態を説明するための断面図（１）である。It is sectional drawing (1) for demonstrating the connection state of an adjacent unit pipe | tube. 隣接する単位管の連結状態を説明するための断面図（２）である。It is sectional drawing (2) for demonstrating the connection state of an adjacent unit pipe | tube. 隣接する単位管の連結状態を説明するための断面図（３）である。It is sectional drawing (3) for demonstrating the connection state of an adjacent unit pipe | tube. そのＩ−Ｉ断面図（横断面図）である。It is the II sectional drawing (transverse sectional view). 実施形態２の管構造の一方端側の断面図である。6 is a cross-sectional view of one end side of the tube structure of Embodiment 2. FIG. その他方端側の断面図である。It is sectional drawing of the other end side. 隣接する単位管の連結状態を説明するための断面図である。It is sectional drawing for demonstrating the connection state of an adjacent unit pipe | tube. そのＩＩ−ＩＩ断面図（横断面図）である。It is the II-II sectional view (transverse sectional view). 内管相互の嵌合の他の例（１）である。It is another example (1) of inner pipe mutual fitting. 内管相互の嵌合の他の例（２）である。It is another example (2) of inner pipe mutual fitting. 内管相互の嵌合の他の例（３）である。It is another example (3) of inner pipe mutual fitting. 内管相互の嵌合の他の例（４）である。It is another example (4) of inner pipe mutual fitting.

符号の説明Explanation of symbols

１０Ａ，１０Ｂ…内管、１１…凸部、１２…凹部、１３…段部、１４…雄ネジ部、１５，１６…Ｏリング、２０Ａ，２０Ｂ…外管、２１…雌ネジ部、２２…雄ネジ部、３０，３１…スペーサー、４０…袋ナット、４１…雌ネジ部、４２…摺動部、５０…信号ケーブル、５１…雄コネクタ、５２…雌コネクタ、５３…結束部材。   10A, 10B ... Inner pipe, 11 ... Convex part, 12 ... Concave part, 13 ... Step part, 14 ... Male thread part, 15, 16 ... O-ring, 20A, 20B ... Outer pipe, 21 ... Female thread part, 22 ... Male Screw part, 30, 31 ... spacer, 40 ... cap nut, 41 ... female screw part, 42 ... sliding part, 50 ... signal cable, 51 ... male connector, 52 ... female connector, 53 ... binding member.

Claims (5)

少なくとも内管と外管とを備え、
長手方向に順次連結されると共に、連結された内管及び外管はそれぞれ相対的に軸心方向に押し引き自在とされた単位管の管構造であって、
内管の一方端側の外周には、袋ナットが摺動可能に外嵌され、
該袋ナットの内周面には、雌ネジ部が形成され、この雌ネジ部は内管の他方端側の外周面に形成された雄ネジ部と螺合可能とされ、
単位管の連結の際には、内管の一方端と隣接する内管の他方端とが嵌合されると共に、前記袋ナットが隣接する内管の雄ネジ部に螺合される構成とされた、
ことを特徴とする管構造。 Comprising at least an inner tube and an outer tube,
The inner pipe and the outer pipe that are sequentially connected in the longitudinal direction, and the connected inner pipe and the outer pipe are each a tube structure of a unit pipe that can be pushed and pulled in the axial direction.
A cap nut is slidably fitted on the outer periphery of one end side of the inner tube,
A female screw portion is formed on the inner peripheral surface of the cap nut, and this female screw portion can be screwed with a male screw portion formed on the outer peripheral surface on the other end side of the inner tube.
When connecting the unit pipes, one end of the inner pipe and the other end of the adjacent inner pipe are fitted, and the cap nut is screwed into the male thread portion of the adjacent inner pipe. The
A tube structure characterized by that. 内管と外管との間に、コネクタによる差込方式の信号ケーブルが挿通された、請求項１記載の管構造。   The tube structure according to claim 1, wherein a signal cable of an insertion method using a connector is inserted between the inner tube and the outer tube. 内管の軸心と外管の軸心とが偏心するように内管と外管が配設された、請求項１又は２記載の管構造。   The pipe structure according to claim 1 or 2, wherein the inner pipe and the outer pipe are arranged so that an axis of the inner pipe and an axis of the outer pipe are eccentric. 内管の一方端には凸部、他方端にはこの凸部と嵌合する凹部が形成され、これら凸部と凹部により隣接する内管と嵌合される構成とされた、請求項１乃至３のいずれか１項記載の管構造。   A convex portion is formed at one end of the inner tube, and a concave portion that is fitted to the convex portion is formed at the other end, and the convex portion and the concave portion are fitted to an adjacent inner tube. 4. The tube structure according to any one of 3 above. 外管同士の連結は、螺合による連結とされた、請求項１乃至４のいずれか１項記載の管構造。   The tube structure according to any one of claims 1 to 4, wherein the outer tubes are connected to each other by screwing.
JP2006000026U 2006-01-06 2006-01-06 Tube structure Expired - Lifetime JP3120142U (en)

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