JP2010105062A

JP2010105062A - Tube separating device, tube joining device, and tube attaching/detaching device

Info

Publication number: JP2010105062A
Application number: JP2008276680A
Authority: JP
Inventors: Koji Aoyama; 幸司青山; Mitsuhiro Mori; 充弘森; Yosuke Nishihara; 陽介西原
Original assignee: Taisei Kiko Co Ltd
Current assignee: Taisei Kiko Co Ltd
Priority date: 2008-10-28
Filing date: 2008-10-28
Publication date: 2010-05-13
Anticipated expiration: 2028-10-28
Also published as: JP5285389B2

Abstract

PROBLEM TO BE SOLVED: To reliably prevent a first attaching body from being displaced from a spigot tube part, and to efficiently and easily perform a tube installation/removal operation at site. SOLUTION: A gripping device 4 for gripping the outer peripheral surface of the spigot tube part 2 is provided to the first mounting body 3 attached to the spigot tube part 2 detachably from the tube radial direction. A cylinder mounting part 7 which engages and holds a hydraulic cylinder C for providing a separating force to both tube parts 1, 2 through the gripping device 4 in the gripping state in a predetermined attitude detachably from the reaction force receiving direction and a pressure receiving part 8 which is brought into contact with the spigot tube part 1 from the tube axis X direction when both tube parts 1, 2 are separated by the hydraulic cylinder C are provided to a second mounting body 5 attached to the spigot tube part 1 detachably from the tube radial direction. A locking part 10 which is allowed to come into contact with the gripping device 4 from the tube axis X direction and which changes over the gripping device 4 in the gripping state when the piston rod 9 of the hydraulic cylinder C in the contact state is extended is provided to the piston rod 9. COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、例えば、水道管やガス管等の流体管又は仕切弁や空気弁等の流体機器に形成されている受口管部に対して、他の流体管又は流体機器に形成されている挿入管部を管軸芯方向から挿入接続する管接合機能、或いは、接続されている受口管部と挿入管部とを管軸芯方向に沿って引抜き分離（解体）する管離脱機能の少なくとも一つを備えた管離脱装置と管接合装置及び管脱着装置に関する。 For example, the present invention is formed in another fluid pipe or fluid device with respect to a fluid pipe such as a water pipe or a gas pipe or a receiving pipe portion formed in a fluid device such as a gate valve or an air valve. At least a pipe joining function for inserting and connecting the insertion pipe part from the pipe axis direction, or a pipe detaching function for drawing and separating (disassembling) the connected receiving pipe part and insertion pipe part along the pipe axis direction. The present invention relates to a pipe detachment apparatus, a pipe joining apparatus, and a pipe detaching apparatus.

前記管接合機能及び管離脱機能を備えた管脱着装置としては、例えば、下記特許文献１に示すように、受口管部に挿入接続可能な挿口管部に対して管径方向から脱着自在に装着される第１装着体に、挿口管部の外周面に形成した突起に対して管径方向外方から嵌合する凹部を形成する。 As a pipe detachment device having the pipe joining function and the pipe detachment function, for example, as shown in Patent Document 1 below, it is detachable from the pipe diameter direction with respect to the insertion pipe part that can be inserted and connected to the receiving pipe part. A recess is formed in the first mounting body to be mounted on the outer peripheral surface of the insertion tube portion to be fitted from the outer side in the tube radial direction.

前記受口管部に対して管径方向から脱着自在に装着される第２装着体には、受口管部の開口側端面に対して管軸芯方向の一側方から当接可能な第１係合面と、受口管部の外周面における大径管部分と小径管部分との段差箇所に対して管軸芯方向の他側方から当接可能な第２係合面とを形成するとともに、前記第２装着体の管周方向両側部には、流体圧シリンダのシリンダチューブの両端部を管軸芯方向に沿う姿勢で脱着自在に締付け固定する締め付け固定具を設ける。 The second mounting body, which is detachably attached to the receiving pipe portion from the pipe radial direction, is capable of contacting the opening side end surface of the receiving pipe portion from one side in the tube axis direction. 1 engagement surface and the 2nd engagement surface which can contact | abut from the other side of a pipe axis direction with respect to the level | step-difference location of the large diameter pipe part and small diameter pipe part in the outer peripheral surface of a receiving pipe part are formed. At the same time, both ends of the second mounting body in the pipe circumferential direction are provided with fastening fixtures that detachably fasten both ends of the cylinder tube of the fluid pressure cylinder in a posture along the pipe axis direction.

前記両流体圧シリンダのピストンロッドの先端側に形成された雄ネジ部を、前記第１装着体に形成された連結孔に貫通させるとともに、各ピストンロッドの雄ネジ部に螺合された二個のナットにより前記第１装着体を挾持固定したものが提案されている。 Two male screw portions formed on the tip end side of the piston rod of both the fluid pressure cylinders are passed through the connection holes formed in the first mounting body and screwed into the male screw portions of the piston rods. There has been proposed a structure in which the first mounting body is clamped and fixed by a nut.

また、前記管接合機能を備えた管接合装置としては、例えば、下記特許文献２に示すように、受口管部に挿入接続可能な挿口管部に対して管径方向から脱着自在に装着される第１装着体の管周方向両側部に、管軸芯方向に対して直交する軸芯周りでの揺動により挿口管部の外周面を挾持する状態と挾持解除状態とに切り替え可能な挾持アームを設ける。 Moreover, as a pipe joining apparatus provided with the said pipe joining function, as shown, for example in the following patent document 2, it attaches | detaches to the insertion pipe part insertable and connectable to a receiving pipe part from a pipe radial direction so that attachment or detachment is possible. It is possible to switch between the state where the outer peripheral surface of the insertion tube part is held and the state where the holding is released by swinging around the axis perpendicular to the pipe axis direction on both sides in the pipe circumferential direction of the first mounting body. Provide a holding arm.

前記受口管部に対して管径方向から脱着自在に装着される第２装着体には、受口管部の外周面における大径管部分と小径管部分との段差箇所に対して管軸芯方向から当接可能な係合面を形成するとともに、前記第２装着体の管周方向両側部には、流体圧シリンダのシリンダチューブの後端に設けた第１連結部を枢支連結するブラケットを設ける。 The second mounting body, which is detachably attached to the receiving pipe portion from the pipe radial direction, has a pipe axis with respect to a step portion between the large diameter pipe portion and the small diameter pipe portion on the outer peripheral surface of the receiving pipe portion. An engaging surface that can be contacted from the core direction is formed, and a first connecting portion provided at a rear end of a cylinder tube of the fluid pressure cylinder is pivotally connected to both side portions in the pipe circumferential direction of the second mounting body. Provide a bracket.

前記各流体圧シリンダのピストンロッドの先端部には、前記挾持アームの他端部に枢支連結される第２連結部を設け、両流体圧シリンダの収縮作動により、挾持アームを挾持状態に切り替えるとともに、挾持された挿口管部を受口管部に挿入移動させる。 A second connecting portion pivotally connected to the other end of the holding arm is provided at the tip of the piston rod of each fluid pressure cylinder, and the holding arm is switched to the holding state by the contraction operation of both fluid pressure cylinders. At the same time, the held insertion tube portion is inserted and moved into the reception tube portion.

実開昭５１−１１３８１７号公報Japanese Utility Model Publication No. 51-111381 特開平７−４２８７６号公報JP 7-42876 A

従来の管脱着装置では、第１装着体の凹部を挿口管部の外周面に形成された突起に嵌合させるため、第１装着体と挿口管部との管軸芯方向での位置ずれを防止するこができるものの、前記突起が設けられていない挿口管部に対しては使用することができない。 In the conventional tube desorbing device, the concave portion of the first mounting body is fitted to the protrusion formed on the outer peripheral surface of the insertion tube portion, and therefore the position of the first mounting body and the insertion tube portion in the tube axis direction Although displacement can be prevented, it cannot be used for the intubation tube portion where the protrusion is not provided.

しかも、管脱着装置を装着する場合、受口管部に外装した第２装着体の管周方向両側部に、流体圧シリンダのシリンダチューブの両端部を締め付け固定具で固定したのち、挿口管部に外装された第１装着体の連結孔に流体圧シリンダのピストンロッドの先端側を挿通し、各ピストンロッドの雄ネジ部に螺合された二個のナットにより第１装着体の管周方向両側部を挾持固定する必要があり、また、管脱着装置を撤去する場合にも同様な多くの作業工程が必要であり、施工現場での組付け・撤去作業が煩雑化するとともに、多くの手間を要する問題があった。 In addition, when installing the pipe detaching device, the both ends of the cylinder tube of the fluid pressure cylinder are fixed with the fastening fixtures on both sides in the pipe circumferential direction of the second mounting body that is sheathed on the receiving pipe part, and then the insertion pipe The tip end side of the piston rod of the fluid pressure cylinder is inserted into the connecting hole of the first mounting body, which is sheathed on the part, and the pipe circumference of the first mounting body by two nuts screwed to the male thread portion of each piston rod It is necessary to hold and fix both sides of the direction, and when removing the pipe detaching device, a lot of similar work processes are necessary, and the assembly and removal work at the construction site becomes complicated, and many There was a problem that took time.

従来の管接合装置では、受口管部に外装した第２装着体の管周方向両側部に設けたブラケットの各々に、流体圧シリンダのシリンダチューブの後端に設けた第１連結部を枢支連結するとともに、前記挿口管部に外装された第１装着体の管周方向両側部における挾持アームの他端部に、各流体圧シリンダのピストンロッドの先端部に設けられた第２連結部を枢支連結する必要があり、また、管接合装置を撤去する場合にも同様な多くの作業工程が必要であり、施工現場での組付け・撤去作業が煩雑化するとともに、多くの手間を要する問題があった。 In the conventional pipe joining device, the first connecting part provided at the rear end of the cylinder tube of the fluid pressure cylinder is pivoted to each of the brackets provided on both sides in the pipe circumferential direction of the second mounting body that is sheathed on the receiving pipe part. A second connection provided at the tip of the piston rod of each fluid pressure cylinder at the other end of the gripping arm on both sides in the pipe circumferential direction of the first mounting body that is externally connected to the insertion tube. It is necessary to pivotally connect the parts, and also when removing the pipe joining device, many similar work processes are required, which complicates the assembly and removal work at the construction site and requires a lot of labor. There was a problem that required.

本発明は、上述の実状に鑑みて為されたものであって、その主たる課題は、挿口管部の外径が少し変化した場合でも、該挿口管部に対する第１装着体の位置ずれを確実に防止することができ、しかも、施工現場での組付け・撤去作業を能率良く容易に行うことのできる管離脱装置と管接合装置及び管脱着装置を提供する点にある。 The present invention has been made in view of the above circumstances, and the main problem is that even when the outer diameter of the insertion tube portion is slightly changed, the first mounting body is displaced relative to the insertion tube portion. The present invention is to provide a pipe detaching device, a pipe joining device, and a pipe detaching device that can reliably prevent assembly and can perform assembly and removal work at a construction site efficiently and easily.

本発明による第１の特徴構成は、管離脱装置において、受口管部に挿入接続可能な挿口管部に対して管径方向から脱着自在に装着される第１装着体に、前記挿口管部の外周面を挾持する状態と挾持解除状態とに切り替え可能な挾持具が設けられているとともに、前記受口管部に対して管径方向から脱着自在に装着される第２装着体には、挾持状態の挾持具を介して両管部に離脱移動力を付与する流体圧シリンダを反力受け方向から脱着自在に所定姿勢で係合保持するシリンダ装着部と、前記流体圧シリンダによる両管部の離脱移動時において前記受口管部に管軸芯方向から当接する反力受け部が設けられ、前記流体圧シリンダのピストンロッドには、前記挾持具に対して管軸芯方向から当接自在で、かつ、その当接状態でのピストンロッドの伸長移動に伴って挾持具を挾持状態に切り替え作動させる係止部が設けられている点にある。 According to a first characteristic configuration of the present invention, in the tube detaching device, the insertion port is provided in a first mounting body that is detachably mounted from a tube diameter direction to an insertion tube portion that can be inserted and connected to the receiving tube portion. A gripping device capable of switching between a gripping state and a gripping release state is provided, and a second mounting body that is detachably mounted on the receiving tube portion from the tube diameter direction. A cylinder mounting portion that engages and holds a fluid pressure cylinder that applies a detachment force to both pipe portions via a gripping tool in a gripping state in a predetermined posture so as to be detachable from the reaction force receiving direction, and both of the fluid pressure cylinders. A reaction force receiving portion that abuts the receiving tube portion from the tube axis direction when the tube portion is moved away is provided, and the piston rod of the fluid pressure cylinder is abutted against the holding tool from the tube axis direction. The piston rod is free to contact and in the contact state. Lies in engaging portion to changeover operation the pinching member to the pinching state with the long movement is provided.

上記特徴構成によれば、管離脱装置を組付ける場合、前記挿口管部に対して挾持具を備えた第１装着体を管径方向から装着し、前記受口管部に対してシリンダ装着部及び反力受け部を備えた第２装着体を管径方向から装着したのち、この第２装着体のシリンダ装着部に、流体圧シリンダを反力受け方向から所定姿勢で係合保持させるだけで済む。 According to the above characteristic configuration, when assembling the tube detaching device, the first mounting body having a holding tool is mounted on the insertion tube portion from the tube radial direction, and the cylinder is mounted on the receiving tube portion. After mounting the second mounting body having the portion and the reaction force receiving portion from the pipe radial direction, the cylinder mounting portion of the second mounting body is simply engaged and held in a predetermined posture from the reaction force receiving direction by the cylinder mounting portion. Just do it.

この状態で流体圧シリンダのピストンロッドを伸長作動させると、このピストンロッドに設けられた係止部が第１装着体に装備されている挾持具に管軸芯方向から当接して押圧し、そのときの反力で流体圧シリンダが第２装着体のシリンダ装着部に圧接され、且つ、第２装着体の反力受け部が受口管部に管軸芯方向から圧接されるとともに、第１装着体の挾持具が挾持状態に切り替えられ、この挾持具を介して挿口管部と受口管部とに離脱移動力が付与される。 When the piston rod of the fluid pressure cylinder is extended and operated in this state, the locking portion provided on the piston rod comes into contact with and presses against the holding tool provided on the first mounting body from the tube axis direction, The fluid pressure cylinder is pressed into contact with the cylinder mounting portion of the second mounting body by the reaction force, and the reaction force receiving portion of the second mounting body is pressed into contact with the receiving pipe portion from the tube axis direction. The holding tool of the mounting body is switched to the holding state, and a separation moving force is applied to the insertion tube portion and the receiving tube portion via the holding device.

したがって、第１・第２装着体の落とし込み装着や流体圧シリンダの差し込み装着といった簡便な装着方法を採用することができるとともに、ピストンロッドの係止部を挾持具に当接させるだけであるから、挿口管部の外径が少し変化した場合でも確実に挾持固定することのできる挾持具を用いながらも、従来に比べて作業工程数も少なくなり、施工現場での管離脱装置の組付け・撤去作業を能率良く容易に行うことができる。 Therefore, it is possible to adopt a simple mounting method such as dropping mounting of the first and second mounting bodies and insertion mounting of the hydraulic cylinder, and only to bring the locking portion of the piston rod into contact with the gripping tool. While using a holding tool that can be securely held and fixed even if the outer diameter of the intubation tube changes slightly, the number of work processes is reduced compared to the conventional method, and assembling of the pipe detachment device at the construction site Removal work can be performed efficiently and easily.

本発明による第２の特徴構成は、上述の第１の特徴構成を備えた管離脱装置において、前記流体圧シリンダのシリンダチューブには、環状の鍔部を突設してある筒状の取付け部材が外装固定されているとともに、前記シリンダ装着部には、前記取付け部材の取付け筒部が管軸芯方向から摺接状態で挿入自在な装着貫通孔と、該装着貫通孔の一方の開口端縁側において前記取付け部材の鍔部を反力受け方向から脱着自在に嵌合状態で受止め保持する嵌合凹部とが形成され、さらに、前記装着貫通孔及び嵌合凹部に対して前記シリンダチューブを径方向外方から装着可能な開口部が形成されている点にある。 According to a second characteristic configuration of the present invention, there is provided a tubular attachment member having an annular flange protruding from a cylinder tube of the fluid pressure cylinder in the pipe detaching device having the first characteristic configuration described above. Is mounted on the cylinder mounting portion, the mounting cylinder portion of the mounting member can be inserted in a sliding contact state from the tube axis direction, and one opening edge side of the mounting through hole. And a fitting recess for receiving and holding the flange portion of the mounting member in a fitting state so as to be detachable from the reaction force receiving direction, and the cylinder tube having a diameter with respect to the mounting through hole and the fitting recess. An opening that can be mounted from the outside in the direction is formed.

上記特徴構成によれば、前記第２装着体のシリンダ装着部に形成された装着貫通孔に対して、シリンダチューブに外装固定された取付け部材の取付け筒部を反力受け方向から摺接状態で挿入することにより、流体圧シリンダを所定姿勢に仮保持することができるとともに、前記装着貫通孔の一方の開口端縁側に形成された嵌合凹部内に、前記取付け部材の鍔部を反力受け方向から嵌合した状態では、その嵌合面においてピストンロッドの伸長作動に伴う反力を強力に受止めることができる。 According to the above characteristic configuration, the mounting cylinder portion of the mounting member that is externally fixed to the cylinder tube is in sliding contact from the reaction force receiving direction with respect to the mounting through hole formed in the cylinder mounting portion of the second mounting body. By inserting, the fluid pressure cylinder can be temporarily held in a predetermined posture, and the flange portion of the mounting member is received by a reaction force in a fitting recess formed on one opening edge side of the mounting through hole. In the state of being fitted from the direction, the reaction force accompanying the extension operation of the piston rod can be received strongly on the fitting surface.

しかも、前記シリンダ装着部に形成された開口部を通してシリンダチューブの中間部分を径方向外方から装着貫通孔及び嵌合凹部内に装着することができるから、シリンダチューブの一端側から挿入する必要がなく、施工現場での管離脱装置の組付け・撤去作業の能率化、容易化を促進することができる。 In addition, since the intermediate portion of the cylinder tube can be mounted from the radially outer side into the mounting through hole and the fitting recess through the opening formed in the cylinder mounting portion, it is necessary to insert the cylinder tube from one end side of the cylinder tube. In addition, it is possible to promote the efficiency and simplification of the assembly / removal work of the pipe detachment device at the construction site.

本発明による第３の特徴構成は、上述の第２の特徴構成を備えた管離脱装置において、前記取付け部材の取付け筒部の外周面には、前記鍔部をシリンダ装着部の嵌合凹部に受止め保持させた状態で装着貫通孔の他方の開口端縁側に当接可能な状態で対面する抜止め突起が設けられているとともに、前記抜止め突起が、前記開口部を管軸芯方向に沿って通過移動可能な大きさに構成されている点にある。 According to a third characteristic configuration of the present invention, in the pipe detaching device having the second characteristic configuration described above, the flange portion is formed in the fitting recess of the cylinder mounting portion on the outer peripheral surface of the mounting cylinder portion of the mounting member. A retaining protrusion is provided that faces the other opening edge of the mounting through-hole in a state where it is received and held, and the retaining protrusion faces the opening in the direction of the tube axis. It is in the point comprised by the magnitude | size which can pass and move along.

上記特徴構成によれば、前記取付け部材の鍔部がシリンダ装着部の嵌合凹部に嵌合した状態では、取付け部材の取付け筒部の外周面に設けられた抜止め突起が、装着貫通孔の他方の開口端縁側に当接可能な状態で対面するから、挿口管部側ほど低位となる状態で受口管部が傾斜している条件下であっても、第２装着体のシリンダ装着部に装着された流体圧シリンダが振動等で抜け落ちることを防止することができる。
それでいて、前記第２装着体のシリンダ装着部に装着された流体圧シリンダを回転操作して、前記抜止め突起をシリンダ装着部の開口部の開口幅内に対応させた場合には、この抜止め突起をシリンダ装着部の開口部を通して管軸芯方向に自由に移動させることができるから、上述の第２の特徴構成による効果を阻害することはない。 According to the above characteristic configuration, in a state where the flange portion of the mounting member is fitted in the fitting recess of the cylinder mounting portion, the retaining protrusion provided on the outer peripheral surface of the mounting cylinder portion of the mounting member is not attached to the mounting through hole. Since it faces in a state where it can come into contact with the other opening edge side, the cylinder mounting of the second mounting body is carried out even under the condition that the receiving tube portion is inclined in a state where the inlet tube portion is lowered toward the insertion tube portion side. It is possible to prevent the fluid pressure cylinder attached to the part from falling off due to vibration or the like.
If the fluid pressure cylinder mounted on the cylinder mounting portion of the second mounting body is operated to rotate so that the retaining protrusion corresponds to the opening width of the opening of the cylinder mounting portion, this retaining Since the protrusion can be freely moved in the tube axis direction through the opening of the cylinder mounting portion, the effect of the above-described second characteristic configuration is not hindered.

本発明による第４の特徴構成は、上述の第１〜第３のいずれか一つの特徴構成を備えた管離脱装置において、前記第１装着体に、挿口管部の管周方向の二点に当接する管当接部と、該管当接部に対して管径方向で略対面する側からの締付け操作で第１装着体を挿口管部に抜止め固定する第１締結具が設けられているとともに、前記第２装着体には、受口管部の管周方向の二点に当接する管当接部と、該管当接部に対して管径方向で略対面する側からの締付け操作で第２装着体を受口管部に抜止め固定する第２締結具が設けられている点にある。 According to a fourth characteristic configuration of the present invention, in the tube detachment device having any one of the first to third characteristic configurations described above, two points in the tube circumferential direction of the insertion tube portion are provided on the first mounting body. A tube abutting portion that abuts the tube and a first fastener that holds and fixes the first mounting body to the insertion tube portion by a tightening operation from the side substantially facing the tube abutting portion in the tube radial direction. In addition, the second mounting body includes a tube contact portion that contacts two points in the tube circumferential direction of the receiving tube portion, and a side substantially facing the tube contact portion in the tube radial direction. There is a point that a second fastener is provided for retaining and fixing the second mounting body to the receiving tube portion by the tightening operation.

上記特徴構成によれば、前記挿口管部及び受口管部に装着された第１装着体及び第２装着体の抜け落ちを、第１締結具及び第２締結具の締め付け固定操作で防止することができるばかりでなく、前記第１装着体及び第２装着体の各々が両管当接部の二点で挿口管部及び受口管部に当接するから、両管部の外径が変動しても安定良く装着固定することができる。
しかも、例えば、前記第１装着体の管当接面及び第２装着体の管当接面の各々が管軸芯を中心とする最大外径の管径に基づいた円弧状面に形成されている場合には、前記挿口管部及び受口管部の外径が最大外径よりも小なるとき、第１装着体及び第２装着体の一方の締結具が他方よりも少し締め過ぎ操作されると、挿口管部及び受口管部に対して第１装着体及び第２装着体が傾動する不都合が発生する。 According to the above characteristic configuration, the first attachment body and the second attachment body attached to the insertion tube portion and the reception tube portion are prevented from falling off by tightening and fixing the first fastener and the second fastener. In addition, each of the first mounting body and the second mounting body abuts the insertion tube portion and the receiving tube portion at two points of the both tube abutting portions. Even if it fluctuates, it can be mounted and fixed stably.
In addition, for example, each of the tube contact surface of the first mounting body and the tube contact surface of the second mounting body is formed in an arcuate surface based on the tube diameter of the maximum outer diameter centered on the tube axis. When the outer diameter of the insertion tube portion and the receiving tube portion is smaller than the maximum outer diameter, one fastener of the first mounting body and the second mounting body is slightly tightened more than the other. Then, the first mounting body and the second mounting body tilt with respect to the insertion tube portion and the receiving tube portion.

しかし、本発明では、上述の如く、前記第１装着体及び第２装着体の各々が両管当接部の二点で挿口管部及び受口管部に当接するから、第１装着体及び第２装着体の一方の締結具が他方よりも少し締め過ぎ操作されても、挿口管部及び受口管部に対して第１装着体及び第２装着体が傾動することがなく、第１・第２装着体の相対装着姿勢の変動に起因する作動不良や離脱ミスを抑制することができる。 However, in the present invention, as described above, each of the first mounting body and the second mounting body abuts the insertion tube portion and the receiving tube portion at two points of the both tube contact portions. And even if one fastener of the second mounting body is operated to be slightly tightened more than the other, the first mounting body and the second mounting body do not tilt with respect to the insertion tube portion and the receiving tube portion, It is possible to suppress malfunctions and detachment errors caused by fluctuations in the relative mounting postures of the first and second mounting bodies.

本発明による第５の特徴構成は、管接合装置において、受口管部に挿入接続可能な挿口管部に対して管径方向から脱着自在に装着される第１装着体には、前記挿口管部の外周面を挾持する状態と挾持解除状態とに切り替え可能な挾持具が設けられているとともに、前記受口管部に対して管径方向から脱着自在に装着される第２装着体には、挾持状態の挾持具を介して両管部に接合移動力を付与する流体圧シリンダを反力受け方向から脱着自在に所定姿勢で係合保持するシリンダ装着部と、前記流体圧シリンダによる両管部の接合移動時において前記受口管部に管軸芯方向から当接する反力受け部が設けられ、前記流体圧シリンダのピストンロッドには、前記挾持具に対して管軸芯方向から当接自在で、かつ、その当接状態でのピストンロッドの収縮移動に伴って挾持具を挾持状態に切り替え作動させる係止部が設けられている点にある。 According to a fifth characteristic configuration of the present invention, in the pipe joining device, the first attachment body that is detachably attached to the insertion tube portion that can be inserted and connected to the reception tube portion from the tube radial direction is provided on the insertion device. A second mounting body that is provided with a gripping tool that can be switched between a gripping state and a gripping release state, and that is detachably mounted on the receiving pipe part from the pipe radial direction. Includes a cylinder mounting portion that engages and holds a fluid pressure cylinder that applies joint movement force to both pipe portions via a gripping tool in a gripping state in a predetermined posture so as to be detachable from the reaction force receiving direction, and the fluid pressure cylinder. A reaction force receiving portion that abuts on the receiving tube portion from the tube axis direction at the time of joint movement of both the tube portions is provided, and the piston rod of the fluid pressure cylinder is disposed on the holding tool from the tube axis direction. Piston rod that can be contacted and in contact It lies in engaging portion to changeover operation the pinching member to the pinching state with the contraction movement is provided.

上記特徴構成によれば、管接合装置を組付ける場合、前記挿口管部に対して挾持具を備えた第１装着体を管径方向から装着し、前記受口管部に対してシリンダ装着部及び反力受け部を備えた第２装着体を管径方向から装着したのち、この第２装着体のシリンダ装着部に、流体圧シリンダを反力受け方向から所定姿勢で係合保持させるだけで済む。 According to the above characteristic configuration, when assembling the pipe joining device, the first mounting body having a holding tool is mounted on the insertion tube portion from the tube radial direction, and the cylinder is mounted on the receiving tube portion. After mounting the second mounting body having the portion and the reaction force receiving portion from the pipe radial direction, the cylinder mounting portion of the second mounting body is simply engaged and held in a predetermined posture from the reaction force receiving direction by the cylinder mounting portion. Just do it.

この状態で流体圧シリンダのピストンロッドを収縮作動させると、このピストンロッドに設けられた係止部が第１装着体に装備されている挾持具に管軸芯方向から当接して引き寄せ、そのときの反力で前記流体圧シリンダが第２装着体のシリンダ装着部に圧接され、且つ、第２装着体の反力受け部が受口管部に管軸芯方向から圧接されるとともに、第１装着体の挾持具が挾持状態に切り替えられ、この挾持具を介して挿口管部と受口管部とに接合移動力が付与される。 When the piston rod of the fluid pressure cylinder is contracted and operated in this state, the engaging portion provided on the piston rod comes into contact with the gripping tool mounted on the first mounting body from the tube axis direction and is drawn. With the reaction force, the fluid pressure cylinder is pressed against the cylinder mounting portion of the second mounting body, and the reaction force receiving portion of the second mounting body is pressed against the receiving pipe portion from the tube axis direction, The holding tool of the mounting body is switched to the holding state, and a joining movement force is applied to the insertion tube portion and the receiving tube portion through the holding device.

したがって、第１・第２装着体の落とし込み装着や流体圧シリンダの差し込み装着といった簡便な装着方法を採用することができるとともに、ピストンロッドの係止部を挾持具に当接させるだけであるから、挿口管部の外径が少し変化した場合でも確実に挾持固定することのできる挾持具を用いながらも、従来に比べて作業工程数も少なくなり、施工現場での管接合装置の組付け・撤去作業を能率良く容易に行うことができる。 Therefore, it is possible to adopt a simple mounting method such as dropping mounting of the first and second mounting bodies and insertion mounting of the hydraulic cylinder, and only to bring the locking portion of the piston rod into contact with the gripping tool. While using a holding tool that can be securely held and fixed even when the outer diameter of the intubation tube changes slightly, the number of work processes is reduced compared to the conventional method, and assembly of pipe joining devices at the construction site Removal work can be performed efficiently and easily.

本発明による第６の特徴構成は、管脱着装置において、受口管部に挿入接続可能な挿口管部に対して管径方向から脱着自在に装着される第１装着体には、前記挿口管部の外周面を挾持する状態と挾持解除状態とに切り替え可能な挾持具が設けられているとともに、前記受口管部に対して管径方向から脱着自在に装着される第２装着体には、挾持状態の挾持具を介して両管部に離脱移動力又は接合移動力を付与する流体圧シリンダを反力受け方向から脱着自在に所定姿勢で係合保持するシリンダ装着部と、前記流体圧シリンダによる両管部の離脱移動時又は接合移動時において前記受口管部に管軸芯方向から当接する反力受け部が設けられ、前記流体圧シリンダのピストンロッドには、前記挾持具に対して管軸芯方向から当接自在で、かつ、その当接状態でのピストンロッドの伸長移動又は収縮移動に伴って挾持具を挾持状態に切り替え作動させる係止部が設けられている点にある。 According to a sixth characteristic configuration of the present invention, in the pipe detaching device, the first attachment body, which is detachably attached to the insertion tube portion that can be inserted and connected to the receiving tube portion from the tube radial direction, is provided on the insertion device. A second mounting body that is provided with a gripping tool that can be switched between a gripping state and a gripping release state, and that is detachably mounted on the receiving pipe part from the pipe radial direction. A cylinder mounting portion that engages and holds a fluid pressure cylinder that applies a detachment movement force or a joint movement force to both pipe portions via a holding tool in a holding state in a predetermined posture so as to be detachable from a reaction force receiving direction; A reaction force receiving portion that comes into contact with the receiving tube portion from the direction of the tube axis when the detachment movement or joining movement of both pipe portions by the fluid pressure cylinder is provided, and the gripping tool is provided on the piston rod of the fluid pressure cylinder Can be freely contacted from the tube axis direction and Lies in engaging portion to changeover operation the pinching member to the pinching state with the extension movement or contraction movement of the piston rod in a contact state is provided.

上記特徴構成によれば、分離対象の挿口管部と受口管部に管脱着装置を組付ける場合には、前記挾持具を備えた第１装着体を、流体圧シリンダのピストンロッドの伸長作動によって挾持具が挾持状態となる向き姿勢で挿口管部に管径方向から装着し、前記受口管部に対してシリンダ装着部及び反力受け部を備えた第２装着体を管径方向から装着したのち、この第２装着体のシリンダ装着部に、流体圧シリンダを反力受け方向から所定姿勢で係合保持させるだけで済む。 According to the above-mentioned characteristic configuration, when assembling the tube attachment / detachment device to the insertion tube portion and the reception tube portion to be separated, the first mounting body provided with the gripping device is extended with the piston rod of the fluid pressure cylinder. A second mounting body having a cylinder mounting portion and a reaction force receiving portion is attached to the insertion tube portion from the tube radial direction in an orientation in which the holding tool is held by operation. After mounting from the direction, it is only necessary to engage and hold the fluid pressure cylinder in a predetermined posture from the reaction force receiving direction on the cylinder mounting portion of the second mounting body.

また、接合対象の挿口管部と受口管部に管脱着装置を組付ける場合には、前記挾持具を備えた第１装着体を、流体圧シリンダのピストンロッドの収縮作動によって挾持具が挾持状態となる向き姿勢で挿口管部に管径方向から装着し、前記受口管部に対してシリンダ装着部及び反力受け部を備えた第２装着体を管径方向から装着したのち、この第２装着体のシリンダ装着部に、流体圧シリンダを反力受け方向から所定姿勢で係合保持させるだけで済む。 Further, in the case of assembling the tube attachment / detachment device to the insertion tube portion and the receiving tube portion to be joined, the first attachment body having the holding device is attached to the holding device by the contraction operation of the piston rod of the fluid pressure cylinder. Attaching the second mounting body having a cylinder mounting portion and a reaction force receiving portion from the tube diameter direction to the insertion tube portion from the tube diameter direction in a holding posture orientation. It is only necessary to engage and hold the fluid pressure cylinder in a predetermined posture from the reaction force receiving direction on the cylinder mounting portion of the second mounting body.

したがって、第１・第２装着体の落とし込み装着や流体圧シリンダの差し込み装着といった簡便な装着方法を採用することができるとともに、ピストンロッドの係止部を挾持具に当接させるだけであるから、挿口管部の外径が少し変化した場合でも確実に挾持固定することのできる挾持具を用いながらも、従来に比べて作業工程数も少なくなり、施工現場での管脱着装置の組付け・撤去作業を能率良く容易に行うことができる。 Therefore, it is possible to adopt a simple mounting method such as dropping mounting of the first and second mounting bodies and insertion mounting of the hydraulic cylinder, and only to bring the locking portion of the piston rod into contact with the gripping tool. While using a holding tool that can be securely held and fixed even when the outer diameter of the intubation tube changes slightly, the number of work processes is reduced compared to the conventional method. Removal work can be performed efficiently and easily.

〔第１実施形態〕
図１〜図８は、鋳鉄管、鋼管又は塩化ビニル管等を用いて構成される水道管やガス管等の流体管Ｐのうち、一方の流体管Ｐの受口管部１に対して、他の流体管Ｐの挿口管部２が管軸芯Ｘ方向から挿入接続されている管継手構造において、受口管部１と挿口管部２とを管軸芯Ｘ方向に沿って引抜き分離（解体）する場合に用いられる本発明の管離脱装置を示す。 [First Embodiment]
FIGS. 1-8 is with respect to the receiving pipe part 1 of one fluid pipe P among the fluid pipes P, such as a water pipe and a gas pipe comprised using a cast iron pipe, a steel pipe, or a vinyl chloride pipe. In a pipe joint structure in which the insertion tube portion 2 of another fluid pipe P is inserted and connected from the tube axis X direction, the receiving tube portion 1 and the insertion tube portion 2 are pulled out along the tube axis X direction. The pipe detachment device of the present invention used when separating (disassembling) is shown.

この管離脱装置を構成するに、受口管部１に挿入接続されている挿口管部２に対して管径方向から脱着自在に装着される金属製（一般構造用圧延鋼材製等）の第１装着体３の管周方向両側部の各々に、挿口管部２の外周面２ａを挾持する状態と挾持解除状態とに切り替え可能な挾持具４が設けられているとともに、前記受口管部１に対して管径方向から脱着自在に装着される金属製（一般構造用圧延鋼材製等）の第２装着体５の管周方向両側部には、挾持状態に切り替え作動される挾持具４を介して両管部１，２に離脱移動力を付与する一対の流体圧シリンダＣを夫々反力受け方向から脱着自在に所定姿勢で係合保持（差し込み保持）するシリンダ装着部７と、前記流体圧シリンダＣの伸長作動による両管部１，２の離脱移動時において前記受口管部１に管軸芯Ｘ方向から当接する反力受け部８が設けられ、前記流体圧シリンダＣのピストンロッド９には、前記挾持具４に対して管軸芯Ｘ方向から当接自在で、かつ、その当接状態でのピストンロッド９の伸長移動、つまり、ピストンロッド９による管軸芯Ｘ方向での押圧移動に伴って挾持具４を挾持状態に切り替え作動させる係止部１０が設けられている。 To constitute this pipe detachment device, a metal (such as a general structural rolled steel) that is detachably attached to the insertion pipe part 2 inserted and connected to the reception pipe part 1 from the pipe radial direction. Each of the both sides in the tube circumferential direction of the first mounting body 3 is provided with a gripping tool 4 that can be switched between a gripping state and a grip releasing state of the outer peripheral surface 2a of the insertion tube portion 2, and the receiving port The holding part which is switched to the holding state is operated on both sides in the pipe circumferential direction of the second mounting body 5 made of metal (made of rolled steel for general structure, etc.) which is detachably attached to the pipe part 1 from the pipe radial direction. A cylinder mounting portion 7 that engages and holds (inserts and holds) a pair of fluid pressure cylinders C that apply detachment force to both pipe portions 1 and 2 via a tool 4 in a predetermined posture so as to be detachable from the reaction force receiving direction; , When the both pipe portions 1 and 2 are separated and moved by the extension operation of the fluid pressure cylinder C, A reaction force receiving portion 8 that contacts the mouth tube portion 1 from the tube axis X direction is provided, and the piston rod 9 of the fluid pressure cylinder C can freely contact the holding tool 4 from the tube axis X direction. And the latching | locking part 10 which switches the holding tool 4 to a holding state with the expansion | extension movement of the piston rod 9 in the contact state, ie, the press movement by the piston rod 9 in the pipe-axis X direction, Is provided.

前記流体圧シリンダＣとしては、油圧ポンプ１３から供給される圧油によって伸長作動され、且つ、シリンダチューブ６に内蔵された図外のバネの弾性復元力で収縮作動される単動形油圧シリンダが使用され、前記シリンダチューブ６の外周面の先端側に形成した雄ネジ部６ａには、環状の鍔部１１Ｂを突設してある筒状の金属製（機械構造用炭素鋼鋼材製等）の取付け部材１１が外装状態で螺合固定されている。 As the fluid pressure cylinder C, there is a single-acting hydraulic cylinder that is extended by pressure oil supplied from the hydraulic pump 13 and contracted by an elastic restoring force of a spring (not shown) built in the cylinder tube 6. A cylindrical metal (made of carbon steel for machine structure, etc.) having an annular flange 11B projecting on the male thread portion 6a formed on the distal end side of the outer peripheral surface of the cylinder tube 6 is used. The attachment member 11 is screwed and fixed in the exterior state.

前記第２装着体５の各シリンダ装着部７には、前記取付け部材１１の取付け筒部１１Ａが管軸芯Ｘ方向から摺接状態で挿入自在な装着貫通孔７Ａと、該装着貫通孔７Ａの一方の開口端縁側において前記取付け部材１１の鍔部１１Ｂを反力受け方向から脱着自在に嵌合状態で受止め保持する嵌合凹部７Ｂと、前記装着貫通孔７Ａ及び嵌合凹部７Ｂに対して前記シリンダチューブ６の中間部分を径方向外方から装着可能な開口部７Ｃが形成されている。 Each cylinder mounting portion 7 of the second mounting body 5 has a mounting through-hole 7A in which the mounting cylinder portion 11A of the mounting member 11 can be inserted in a sliding contact state from the tube axis X direction, and the mounting through-hole 7A. A fitting recess 7B that receives and holds the flange portion 11B of the mounting member 11 in a fitting state so as to be detachable from the reaction force receiving direction on one opening edge side, and the mounting through hole 7A and the fitting recess 7B. An opening 7 C is formed in which an intermediate portion of the cylinder tube 6 can be mounted from the outside in the radial direction.

また、図７、図８に示すように、前記装着貫通孔７Ａの内径Ｄ１及び嵌合凹部７Ｂの内径Ｄ２は、前記取付け部材１１の取付け筒部１１Ａの外径Ｄ３及び鍔部１１Ｂの外径Ｄ４よりも僅かに大なる寸法に形成されているとともに、前記開口部７Ｃの開口幅Ｗは、シリンダチューブ６の外径Ｄ５よりも大で、且つ、取付け筒部１１Ａの外径Ｄ３よりも小に構成されている。 Further, as shown in FIGS. 7 and 8, the inner diameter D1 of the mounting through hole 7A and the inner diameter D2 of the fitting recess 7B are the outer diameter D3 of the mounting cylinder portion 11A of the mounting member 11 and the outer diameter of the flange portion 11B. The opening width W of the opening 7C is larger than the outer diameter D5 of the cylinder tube 6 and smaller than the outer diameter D3 of the mounting cylinder portion 11A. It is configured.

そして、前記第２装着体５の両シリンダ装着部７に形成された装着貫通孔７Ａに対して、シリンダチューブ６に外装固定されている取付け部材１１の取付け筒部１１Ａを反力受け方向（挿口管部２側）から摺接状態で差し込み挿入することにより、油圧シリンダＣを管軸芯Ｘ方向と平行な所定姿勢に仮保持することができるとともに、前記装着貫通孔７Ａの一方の開口端縁側に形成された嵌合凹部７Ｂ内に、前記取付け部材１１の鍔部１１Ｂを反力受け方向（挿口管部２の存在側）から嵌合した状態では、その嵌合面において油圧シリンダＣのピストンロッド９の伸長作動に伴う反力を強力に受止めることができる。 Then, with respect to the mounting through holes 7A formed in both cylinder mounting portions 7 of the second mounting body 5, the mounting cylinder portion 11A of the mounting member 11 that is externally fixed to the cylinder tube 6 is placed in the reaction force receiving direction (insertion). The hydraulic cylinder C can be temporarily held in a predetermined posture parallel to the tube axis X direction by inserting and inserting from the side of the mouth tube portion 2), and one open end of the mounting through-hole 7A. In a state where the flange portion 11B of the mounting member 11 is fitted from the reaction force receiving direction (the side where the inlet tube portion 2 is present) into the fitting recess 7B formed on the edge side, the hydraulic cylinder C on the fitting surface. The reaction force accompanying the extension operation of the piston rod 9 can be received strongly.

しかも、図３に示すように、前記シリンダ装着部７に形成された開口部７Ｃを通してシリンダチューブ６の中間部分を径方向外方から装着貫通孔７Ａ及び嵌合凹部７Ｂ内に装着することができるから、シリンダチューブ６の一端側から一々挿入する必要がなく、施工現場での管離脱装置の組付け・撤去作業の能率化、容易化を促進することができる。 Moreover, as shown in FIG. 3, the intermediate portion of the cylinder tube 6 can be mounted in the mounting through hole 7A and the fitting recess 7B from the outside in the radial direction through the opening 7C formed in the cylinder mounting portion 7. Therefore, it is not necessary to insert from the one end side of the cylinder tube 6 one by one, and the efficiency and simplification of the assembly / removal work of the pipe detachment device at the construction site can be promoted.

前記取付け部材１１の取付け筒部１１Ａの外周面には、前記鍔部１１Ｂの外径と同じ寸法で径方向外方に突出し、且つ、鍔部１１Ｂをシリンダ装着部７の嵌合凹部７Ｂに受止め保持させた嵌合状態において、前記装着貫通孔７Ａの他方の開口端縁側に当接可能な近接状態で対面する抜止め突起１２が形成されているとともに、前記抜止め突起１２が、前記シリンダ装着部７の開口部７Ｃを管軸芯Ｘ方向に沿って通過移動可能な大きさに構成されている。換言すれば、図８に示すように、前記抜止め突起１２の管周方向での長さＬが前記開口部７Ｃの開口幅Ｗよりも小なる寸法に構成されている。 On the outer peripheral surface of the mounting cylinder portion 11A of the mounting member 11, it projects radially outward with the same dimension as the outer diameter of the flange portion 11B, and the flange portion 11B is received by the fitting recess 7B of the cylinder mounting portion 7. In the fitted state in which the retaining projection 12 is held, a retaining projection 12 is formed that faces the other opening edge of the mounting through-hole 7A so as to be in contact with each other, and the retaining projection 12 is connected to the cylinder. The opening 7 C of the mounting portion 7 is configured to have a size capable of moving through the tube axis X direction. In other words, as shown in FIG. 8, the length L in the tube circumferential direction of the retaining projection 12 is configured to be smaller than the opening width W of the opening 7C.

そして、前記取付け部材１１の鍔部１１Ｂがシリンダ装着部７の嵌合凹部７Ｂに嵌合した状態では、前記取付け部材１１の取付け筒部１１Ａの外周面に設けられた抜止め突起１２が、装着貫通孔７Ａの他方の開口端縁側に当接可能な近接状態で対面するから、例えば、挿口管部２側ほど低位となる状態で受口管部１が傾斜している条件下であっても、第２装着体５のシリンダ装着部７に装着された油圧シリンダＣが振動等で抜け落ちることを防止することができる。 When the flange portion 11B of the mounting member 11 is fitted in the fitting recess 7B of the cylinder mounting portion 7, the retaining protrusion 12 provided on the outer peripheral surface of the mounting cylinder portion 11A of the mounting member 11 is mounted. Since it faces in the proximity state which can contact the other opening edge side of 7 A of through-holes, it is the conditions where the receiving pipe part 1 inclines in the state which becomes low, for example in the insertion pipe part 2 side. In addition, the hydraulic cylinder C mounted on the cylinder mounting portion 7 of the second mounting body 5 can be prevented from falling off due to vibration or the like.

それでいて、前記第２装着体５のシリンダ装着部７に装着されている油圧シリンダＣを、前記抜止め突起１２が前記開口部７Ｃの開口幅Ｗ内に対応する部位にまで回動操作することにより、第２装着体５のシリンダ装着部７に対して取付け部材１１を備えた油圧シリンダＣを管軸芯Ｘ方向に自由に摺動操作することができるから、前記開口部７Ｃを利用した油圧シリンダＣの簡易な脱着操作を維持することができる。 Still further, by rotating the hydraulic cylinder C mounted on the cylinder mounting portion 7 of the second mounting body 5 to a position where the retaining projection 12 corresponds to the opening width W of the opening 7C. Since the hydraulic cylinder C provided with the attachment member 11 can be freely slid in the tube axis X direction with respect to the cylinder mounting portion 7 of the second mounting body 5, the hydraulic cylinder using the opening 7C. A simple desorption operation of C can be maintained.

前記第１装着体３は、挿口管部２に対する装着空間Ｓ１を備えた管軸芯Ｘ方向視において略Ｕの字状に構成され、この第１装着体３の装着空間Ｓ１側の内側面３ａには、挿口管部２の管周方向の二点に当接するべく、管周方向に９０度偏位した二点から台形状の第１管当接部１５が突出形成されているとともに、前記第１装着体３の管周方向両端部には、前記第１管当接部１５に対して管径方向で略対面する側からの締付け操作で第１装着体３を挿口管部２に抜止め固定する第１締結具１６が設けられている。 The first mounting body 3 is configured in a substantially U shape when viewed from the tube axis X direction with the mounting space S1 with respect to the insertion tube portion 2, and the inner surface of the first mounting body 3 on the mounting space S1 side. In 3a, a trapezoidal first tube contact portion 15 is formed to project from two points displaced 90 degrees in the tube circumferential direction so as to contact two points in the tube circumferential direction of the insertion tube portion 2. The first mounting body 3 is inserted into both ends of the first mounting body 3 in the pipe circumferential direction by a tightening operation from the side substantially facing the first pipe contact portion 15 in the pipe radial direction. A first fastener 16 that is secured to 2 is secured.

前記第１締結具１６は、第１装着体３の管周方向両端部に固着されたナット１６Ａとそれに螺合されるボルト１６Ｂから構成され、前記ボルト１６Ｂの締付け操作で挿口管部２を第１管当接部１５に押圧固定することにより、前記挿口管部２に装着された第１装着体３の抜け落ちを防止するとともに、前記第１装着体３の両第１管当接部１５の二点で挿口管部２の外周面２ａに当接するから、挿口管部２の外径が少し変動しても第１装着体３を安定良く装着固定することができる。 The first fastener 16 includes a nut 16A that is fixed to both ends in the pipe circumferential direction of the first mounting body 3, and a bolt 16B that is screwed to the nut 16A. By pressing and fixing to the first tube abutment portion 15, the first attachment body 3 attached to the insertion tube portion 2 is prevented from falling off and both the first tube contact portions of the first attachment body 3 are prevented. 15, the first attachment body 3 can be stably attached and fixed even if the outer diameter of the insertion tube portion 2 slightly changes.

前記挾持具４を構成するに、第１装着体３の一側面の管周方向両側部の各々には、上下一対のブラケット４Ａが固着され、各対のブラケット４Ａ間には、前記挿口管部２の外周面２ａに食い込み可能な多数の挾持突起４ａを備えた挾持アーム４Ｂが、挿口管部２の管軸芯Ｘに対して直交する軸芯周りでの揺動を許容するボルト４Ｃで枢着されているとともに、前記挾持アーム４Ｂの先端部には、流体圧シリンダＣのピストンロッド９の先端に設けられた係止部１０に対する外れ止め突起４ｂが一体形成されている。 To constitute the gripping tool 4, a pair of upper and lower brackets 4A are fixed to each of both sides in the tube circumferential direction on one side of the first mounting body 3, and the insertion tube is placed between each pair of brackets 4A. A bolt 4C that allows a holding arm 4B having a number of holding projections 4a that can bite into the outer peripheral surface 2a of the portion 2 to swing around an axis perpendicular to the tube axis X of the insertion tube portion 2 And a locking projection 4b for the locking portion 10 provided at the tip of the piston rod 9 of the fluid pressure cylinder C is integrally formed at the tip of the holding arm 4B.

前記挾持アーム４Ｂの挾持突起４ａは、揺動方向一端側ほどボルト４Ｃの揺動軸芯からの距離が長くなり、挾持アーム４Ｂの起立揺動に連れて挿口管部２の外周面２ａに対する喰込みが大きくなるように構成されている。 The holding projection 4a of the holding arm 4B has a longer distance from the swing axis of the bolt 4C toward one end in the swinging direction, and with respect to the outer peripheral surface 2a of the inlet tube portion 2 as the holding arm 4B swings upright. It is comprised so that encroachment may become large.

前記第２装着体５は、受口管部１に対する装着空間Ｓ２を備えた管軸芯Ｘ方向視において略Ｕの字状に構成され、この第２装着体５の装着空間Ｓ２側の内側面を、左右中央の水平内側面５ａとこれの左右両側に所定の交差角度（例えば、１２９度程度）で傾斜する傾斜内側面５ｂとから構成し、前記両傾斜内側面５ｂにおける受口管部１の外周面と接触する部位をもって、受口管部１の外周面の管周方向の二点に当接する第２管当接部１７が形成されているとともに、前記第２装着体５の管周方向両端部には、前記第２管当接部１７に対して管径方向で略対面する側からの締付け操作で第２装着体５を受口管部１に抜止め固定する第２締結具１８が設けられている。 The second mounting body 5 is configured in a substantially U shape when viewed in the direction of the tube axis X with the mounting space S2 for the receiving pipe portion 1, and the inner surface of the second mounting body 5 on the mounting space S2 side. Is composed of a horizontal inner side surface 5a at the center of the left and right sides and an inclined inner side surface 5b that is inclined at a predetermined crossing angle (for example, about 129 degrees) on both the left and right sides of the horizontal inner side surface 5a. A second tube abutting portion 17 having a portion in contact with the outer circumferential surface of the receiving tube portion 1 and abutting against two points in the tube circumferential direction of the outer circumferential surface of the receiving tube portion 1 is formed. At both ends in the direction, a second fastener for securing and fixing the second mounting body 5 to the receiving tube portion 1 by a tightening operation from the side substantially facing the second tube contact portion 17 in the tube radial direction. 18 is provided.

前記第２締結具１８は、前記第１締結具１６と同様に、第２装着体５の管周方向両端部に固着されたナット１８Ａとそれに螺合されるボルト１８Ｂから構成され、前記ボルト１８Ｂの締付け操作で受口管部１を両傾斜内側面５ｂにおける第２管当接部１７に押圧固定することにより、前記受口管部１に装着された第２装着体５の抜け落ちを防止するとともに、前記第２装着体５の両第２管当接部１７の二点で受口管部１に当接するから、受口管部１の外径が少し変動しても第２装着体５を安定良く装着固定することができる。 Similarly to the first fastener 16, the second fastener 18 includes nuts 18A fixed to both ends of the second mounting body 5 in the pipe circumferential direction and bolts 18B screwed to the nuts 18A. By pressing and fixing the receiving tube portion 1 to the second tube contact portion 17 on both inclined inner side surfaces 5b, the second mounting body 5 mounted on the receiving tube portion 1 is prevented from falling off. At the same time, since the two abutment parts 17 of the second attachment body 5 abut on the receiving pipe part 1 at two points, even if the outer diameter of the receiving pipe part 1 slightly changes, the second attachment body 5 Can be mounted and fixed stably.

前記反力受け部８は、第２装着体５の管周方向両端部に、前記受口管部１の受口周縁に連続する環状端面に管軸芯Ｘ方向から当接する状態で一体形成されている。 The reaction force receiving portion 8 is integrally formed at both ends in the pipe circumferential direction of the second mounting body 5 so as to be in contact with the annular end surface continuous with the peripheral edge of the receiving tube portion 1 from the tube axis X direction. ing.

前記係止部１０の基部には、油圧シリンダＣのピストンロッド９の先端部に形成されたネジ孔９Ａに螺合固定される雄ネジ部１０Ａが形成されているとともに、前記係止部１０の前半側には、挾持アーム４Ｂに管軸芯Ｘ方向から係止可能な係止凹部１０Ｂが形成されている。 A male screw portion 10A that is screwed and fixed to a screw hole 9A formed at the tip of the piston rod 9 of the hydraulic cylinder C is formed at the base of the locking portion 10. A locking recess 10B that can be locked to the holding arm 4B from the tube axis X direction is formed on the front half side.

また、前記取付け部材１１の取付け筒部１１Ａには、シリンダチューブ６の雄ネジ部６ａと取付け筒部１１Ａとの螺合箇所をビスで抜止め固定するためのネジ孔１１ａが形成されているとともに、前記第１装着体３の上端部及び第２装着体５の上端部には夫々把手１９が連設されている。 The mounting cylinder 11A of the mounting member 11 is formed with a screw hole 11a for retaining and fixing a screwed portion between the male thread 6a of the cylinder tube 6 and the mounting cylinder 11A with a screw. A handle 19 is connected to the upper end of the first mounting body 3 and the upper end of the second mounting body 5, respectively.

管継手構造としては従来から種々の構造が存在するが、当該実施形態に例示した管継手構造は、図１に示すように、一方の流体管Ｐの受口管部１と他方の流体管Ｐの挿口管部２との間に、両管部１，２が管軸線Ｘ方向に沿って相対離脱移動したとき、管軸線Ｘ方向から互いに接当してそれ以上の離脱移動を阻止する離脱防止手段Ａと、前記受口管部１と挿口管部２とを同軸芯状態に維持する屈曲防止手段Ｂ、及び、前記挿口管部２の外周面と受口管部１の内周面との間を密封（水密）可能な円環状の合成ゴム製のシール材１４が設けられている。 Conventionally, there are various types of pipe joint structures. However, the pipe joint structure illustrated in this embodiment has a receiving pipe portion 1 of one fluid pipe P and the other fluid pipe P as shown in FIG. When the two pipe parts 1 and 2 move relative to each other along the tube axis X direction between the tube insertion pipe part 2 and the tube insertion pipe part 2, they come into contact with each other from the tube axis X direction to prevent further detachment movement. Prevention means A, bending prevention means B for maintaining the receiving tube portion 1 and the insertion tube portion 2 in a coaxial core state, and the outer peripheral surface of the insertion tube portion 2 and the inner periphery of the reception tube portion 1 An annular synthetic rubber sealing material 14 capable of sealing (watertight) between the surfaces is provided.

前記離脱防止手段Ａを構成するに、前記受口管部１の内周面に形成された円環状の取付け溝２０に、管軸線Ｘ方向視において略Ｃの字状に形成された拡径側に弾性変形可能な金属製のロックリング２１と、これの拡径変形を許容する状態で該ロックリング２１を受口管部１と同軸芯状態に保持する弾性保持リング２２とが装着されているとともに、前記挿口管部２の外周面２ａの先端部には、地震や不同沈下等に起因して両管部１，２が一定以上に相対離脱移動したとき、ロックリング２１に対して管軸線Ｘ方向から接当してそれ以上の両管部１，２の相対離脱移動を阻止する円環状の抜止め突起２３が一体形成されている。 The disengagement prevention means A is constituted by an enlarged attachment side 20 formed in an annular mounting groove 20 formed on the inner peripheral surface of the receiving pipe portion 1 in a substantially C shape when viewed in the tube axis X direction. A metal lock ring 21 that is elastically deformable, and an elastic holding ring 22 that holds the lock ring 21 coaxially with the receiving tube portion 1 in a state in which the diameter-expanding deformation of the metal lock ring 21 is allowed. At the same time, at the tip of the outer peripheral surface 2a of the insertion tube portion 2, when both the tube portions 1 and 2 are moved relative to each other more than a certain amount due to an earthquake or non-uniform subsidence, the tube is moved relative to the lock ring 21. An annular retaining protrusion 23 is integrally formed so as to abut from the direction of the axis X and prevent further relative movement of the tube portions 1 and 2 beyond that.

前記屈曲防止手段Ｂは、前記受口管部１に、挿口管部２の外周面２ａに接触する屈曲規制状態にまで縮径側に弾性変形可能な合成樹脂製の屈曲防止用リング２４と、この屈曲防止用リング２４の周方向複数箇所を管径方向内方に押圧して屈曲規制状態に縮径変形させる複数本のセットボルト２５を設けて構成されている。 The bend preventing means B includes a synthetic resin bend preventing ring 24 that is elastically deformable to the diameter-reduced side until the bend restricting state in contact with the outer peripheral surface 2a of the inlet tube portion 2 on the receiving tube portion 1. A plurality of set bolts 25 are provided to press a plurality of locations in the circumferential direction of the bending prevention ring 24 inward in the tube diameter direction and reduce the diameter to a bending restricted state.

そのため、この管継手構造においては、前記受口管部１と挿入管部２とを引抜き分離する場合、前記挿口管部２の抜止め突起２３が受口管部１の取付け溝２０に装着されているロックリング２１に係合しないように、前記抜止め突起２３と同一の厚み又はそれよりも若干大きな厚みの構成された細幅状の複数本の解体用薄板２６を、前記挿口管部２の外周面２ａとロックリング２１との間に打ち込み、挿口管部２の抜止め突起２３を抜き出し可能な内径にまでロックリング２１を拡径変形操作する事前作業が必要となる。 Therefore, in this pipe joint structure, when the receiving pipe portion 1 and the insertion pipe portion 2 are pulled out and separated, the retaining projection 23 of the insertion pipe portion 2 is mounted in the mounting groove 20 of the receiving pipe portion 1. A plurality of narrow disassembling thin plates 26 having the same thickness as the retaining protrusion 23 or slightly thicker so as not to engage with the lock ring 21 is provided in the insertion tube. It is necessary to perform a prior operation for expanding the lock ring 21 to an inner diameter where the retaining projection 23 of the insertion tube portion 2 can be extracted by driving between the outer peripheral surface 2a of the portion 2 and the lock ring 21.

尚、本発明は、上述したように種々の構造の管継手構造に適用することが可能で、図１に示す管継手構造に限定されるものではない。 Note that the present invention can be applied to pipe joint structures having various structures as described above, and is not limited to the pipe joint structure shown in FIG.

〔第２実施形態〕
図９、図１０は、受口管部１と挿口管部２とを管軸芯Ｘ方向に沿って挿入接続（接合）する場合に用いられる本発明の管接合装置を示す。
この管接合装置を構成するに、受口管部１に挿入接続される挿口管部２に対して管径方向から脱着自在に装着される金属製の第１装着体３の管周方向両側部には、前記挿口管部２の外周面２ａを挾持する状態と挾持解除状態とに切り替え可能な一対の挾持具４が設けられている。 [Second Embodiment]
FIG. 9 and FIG. 10 show the pipe joining device of the present invention used when the receiving pipe part 1 and the insertion pipe part 2 are inserted and connected (joined) along the tube axis X direction.
To construct this pipe joining device, both sides in the pipe circumferential direction of the metal first mounting body 3 that is detachably mounted from the pipe radial direction to the insertion pipe part 2 inserted and connected to the receiving pipe part 1. The part is provided with a pair of gripping tools 4 that can be switched between a state in which the outer peripheral surface 2a of the insertion tube part 2 is gripped and a state in which the grip is released.

さらに、前記受口管部１に対して管径方向から脱着自在に装着される金属製の第２装着体５の管周方向両側部には、挾持状態に切り替え作動される挾持具４を介して両管部１，２に接合移動力を付与する一対の流体圧シリンダＣを夫々反力受け方向から脱着自在に所定姿勢で係合保持（差し込み保持）するシリンダ装着部７と、前記流体圧シリンダＣの収縮作動による両管部１，２の接合移動時において前記受口管部１に管軸芯Ｘ方向から当接する反力受け部８が設けられている。 Further, the both sides in the pipe circumferential direction of the second mounting body 5 made of metal, which is detachably attached to the receiving pipe part 1 from the pipe radial direction, are provided with a holding tool 4 which is operated to be switched to the holding state. A cylinder mounting portion 7 that engages and holds (inserts and holds) a pair of fluid pressure cylinders C that apply joint movement force to the pipe portions 1 and 2 in a predetermined posture so as to be detachable from the reaction force receiving direction, and the fluid pressure A reaction force receiving portion 8 is provided that contacts the receiving tube portion 1 from the direction of the tube axis X when the two tube portions 1 and 2 are joined and moved by the contraction operation of the cylinder C.

前記流体圧シリンダＣのピストンロッド９には、前記挾持具４に対して管軸芯Ｘ方向から当接自在で、かつ、その当接状態でのピストンロッド９の収縮移動、つまり、ピストンロッド９による管軸芯Ｘ方向での引き込み移動に伴って挾持具４を挾持状態に切り替え作動させる第２係止部２９が設けられている。 The piston rod 9 of the fluid pressure cylinder C can be brought into contact with the gripper 4 from the direction of the tube axis X, and the contraction movement of the piston rod 9 in the contact state, that is, the piston rod 9 A second locking portion 29 is provided for switching the holding tool 4 to the holding state in accordance with the retraction movement in the tube axis X direction.

前記流体圧シリンダＣとしては、上述の第１実施形態と同様に単動形油圧シリンダが使用され、前記シリンダチューブ６の外周面の先端側に形成した雄ネジ部６ａには、環状の鍔部１１Ｂを突設してある筒状の金属製の取付け部材１１が外装状態で螺合固定されている。 As the fluid pressure cylinder C, a single-acting hydraulic cylinder is used as in the first embodiment, and the male thread portion 6a formed on the distal end side of the outer peripheral surface of the cylinder tube 6 has an annular flange portion. A cylindrical metal mounting member 11 projecting from 11B is screwed and fixed in an exterior state.

この第２実施形態の場合、第１実施形態とは反力受け方向が逆方向になるため、前記取付け部材１１は、取付け筒部１１Ａにおける挿口管部２の存在側とは反対側の端部に鍔部１１Ｂが位置する状態でシリンダチューブ６の雄ネジ部６ａに装着されている。 In the case of this second embodiment, since the reaction force receiving direction is opposite to that of the first embodiment, the mounting member 11 is an end of the mounting tube portion 11A opposite to the side where the insertion tube portion 2 is present. It is attached to the male threaded portion 6a of the cylinder tube 6 with the flange portion 11B positioned at the portion.

前記第２装着体５の各シリンダ装着部７は、第１実施形態とは逆向きに構成されている点が異なるだけ、それ以外は同一構成であり、また、前記第１装着体３及び挾持具４も第１実施形態で説明した構成と同一で、挿口管部２に対して反対の向き姿勢で装着されている点が異なるだけである。 Each cylinder mounting portion 7 of the second mounting body 5 has the same configuration except that the cylinder mounting portion 7 is configured in the opposite direction to the first embodiment. The tool 4 is also the same as that described in the first embodiment, except that it is mounted in the opposite orientation with respect to the intubation tube portion 2.

前記第２装着体５は、前記受口管部１の外周面における大径管部分に形成された環状溝３０内に対して管径方向から脱着自在に装着され、この環状溝３０の管軸芯Ｘ方向で相対向する段差端面３０ａ，３０ｂのうち、受口管部１の受口の開口側に位置する段差端面３０ａと当接可能な第２装着体５の角部をもって、両管部１，２の接合移動時において前記受口管部１に管軸芯Ｘ方向から当接する反力受け部８が構成されている。 The second mounting body 5 is detachably mounted in the annular groove 30 formed in the large-diameter pipe portion on the outer peripheral surface of the receiving pipe portion 1 from the pipe radial direction. Of the step end faces 30a, 30b facing each other in the direction of the core X, both pipe portions have corners of the second mounting body 5 that can come into contact with the step end face 30a located on the opening side of the receiving port of the receiving tube portion 1. A reaction force receiving portion 8 is configured to abut against the receiving tube portion 1 from the tube axis X direction when 1 and 2 are moved.

前記第２係止部２９には、挾持アーム４Ｂに対して管周方向から係脱可能な略コの字状の係止アーム部２９Ａと、油圧シリンダＣのピストンロッド９の先端部に形成されたネジ孔９Ａに螺合固定される雄ネジ部２９Ｂが形成されている。
尚、その他の構成は、第１実施形態で説明した構成と同一であるから、同一の構成箇所には、第１実施形態と同一の番号を付記してそれの説明は省略する。 The second locking portion 29 is formed at a substantially U-shaped locking arm portion 29A that can be engaged and disengaged with respect to the holding arm 4B from the pipe circumferential direction, and a tip portion of the piston rod 9 of the hydraulic cylinder C. A male screw portion 29B is formed to be screwed and fixed to the screw hole 9A.
In addition, since the other structure is the same as the structure demonstrated in 1st Embodiment, the same number is attached to the same structure location as 1st Embodiment, and the description is abbreviate | omitted.

〔第３実施形態〕
図１１は、受口管部１と挿口管部２とを管軸芯Ｘ方向に沿って引抜き分離（解体）する機能、及び、受口管部１と挿口管部２とを管軸芯Ｘ方向に沿って挿入接続（接合）する機能を備えた本発明の管脱着装置を示す。 [Third Embodiment]
FIG. 11 shows a function of drawing and separating (disassembling) the receiving tube portion 1 and the insertion tube portion 2 along the tube axis X direction, and the receiving tube portion 1 and the insertion tube portion 2 as the tube axis. The pipe | tube removal apparatus of this invention provided with the function to insert-connect (join) along the core X direction is shown.

この管脱着装置を構成するに、前記挿口管部２に対して管径方向から脱着自在に装着される金属製の第１装着体３の管周方向両側部には、挿口管部２の外周面２ａを挾持する状態と挾持解除状態とに切り替え可能な挾持具４が設けられている。 In order to constitute this pipe detaching device, the inlet pipe part 2 is provided on both sides in the pipe circumferential direction of the metal first mounting body 3 that is detachably attached to the inlet pipe part 2 from the pipe radial direction. A holding tool 4 is provided that can be switched between a holding state and a holding release state.

さらに、前記受口管部１に対して管径方向から脱着自在に装着される金属製の第２装着体５の管周方向両側部には、挾持状態に切り替え作動される挾持具４を介して両管部１，２に離脱移動力又は接合移動力を付与する一対の流体圧シリンダＣを夫々反力受け方向から脱着自在に所定姿勢で係合保持（差し込み保持）するシリンダ装着部７と、前記流体圧シリンダＣの伸長作動による両管部１，２の離脱移動時又は前記流体圧シリンダＣの収縮作動による両管部１，２の接合移動時において前記受口管部１に管軸芯Ｘ方向から当接する反力受け部８が設けられている。 Further, the both sides in the pipe circumferential direction of the second mounting body 5 made of metal, which is detachably attached to the receiving pipe part 1 from the pipe radial direction, are provided with a holding tool 4 which is operated to be switched to the holding state. A cylinder mounting portion 7 that engages and holds (inserts and holds) a pair of fluid pressure cylinders C that apply separation movement force or joint movement force to both pipe portions 1 and 2 in a predetermined posture so as to be detachable from the reaction force receiving direction, respectively. When the both pipe parts 1 and 2 are moved away from each other by the extension operation of the fluid pressure cylinder C, or when both the pipe parts 1 and 2 are moved by the contraction action of the fluid pressure cylinder C, the pipe shaft is connected to the receiving pipe part 1. A reaction force receiving portion 8 that abuts from the core X direction is provided.

前記流体圧シリンダＣのピストンロッド９には、前記挾持具４に対して管軸芯Ｘ方向から当接自在で、かつ、その当接状態でのピストンロッド９の伸長移動又は収縮移動に伴って挾持具４を挾持状態に切り替え作動させる第１係止部１０又は第２係止部２９が設けられている。 The piston rod 9 of the fluid pressure cylinder C can be brought into contact with the holding tool 4 from the direction of the tube axis X, and the piston rod 9 in the contacted state is expanded or contracted. The 1st latching | locking part 10 or the 2nd latching | locking part 29 which switches and operates the clamping tool 4 to a clamping state is provided.

前記流体圧シリンダＣとしては、上述の第１実施形態と同様に単動形油圧シリンダが使用され、前記シリンダチューブ６の外周面の先端側に形成した雄ネジ部６ａには、環状の鍔部１１Ｂを突設してある筒状の金属製の取付け部材１１が反転付け替え可能に外装状態で螺合固定されている。 As the fluid pressure cylinder C, a single-acting hydraulic cylinder is used as in the first embodiment, and the male thread portion 6a formed on the distal end side of the outer peripheral surface of the cylinder tube 6 has an annular flange portion. A cylindrical metal attachment member 11 projecting from 11B is screwed and fixed in an exterior state so that it can be reversed and replaced.

前記両管部１，２を離脱移動させる場合には、第１実施形態と同様に、取付け筒部１１Ａにおける挿口管部２の存在側の端部に鍔部１１Ｂが位置する状態でシリンダチューブ６の雄ネジ部６ａに装着し、また、前記両管部１，２を接合移動させる場合には、第２実施形態と同様に、取付け筒部１１Ａにおける挿口管部２の存在側とは反対側の端部に鍔部１１Ｂが位置する状態でシリンダチューブ６の雄ネジ部６ａに装着する。 When the both pipe parts 1 and 2 are moved away from each other, as in the first embodiment, the cylinder tube is in a state in which the flange part 11B is located at the end of the attachment tube part 11A on the side where the insertion tube part 2 is present. 6 is attached to the male threaded portion 6a, and when both the tube portions 1 and 2 are joined and moved, the side where the insertion tube portion 2 is present in the mounting tube portion 11A is the same as in the second embodiment. It is attached to the male threaded portion 6a of the cylinder tube 6 in a state where the flange portion 11B is located at the opposite end.

前記第２装着体５の各シリンダ装着部７には、前記取付け部材１１の取付け筒部１１Ａが管軸芯Ｘ方向から摺接状態で挿入自在な装着貫通孔７Ａと、該装着貫通孔７Ａの両方の開口端縁側において前記取付け部材１１の鍔部１１Ｂを離脱移動時又は収縮作動時の反力受け方向から脱着自在に嵌合状態で受止め保持する両嵌合凹部７Ｂと、前記装着貫通孔７Ａ及び両嵌合凹部７Ｂに対して前記シリンダチューブ６を径方向外方から装着可能な開口部７Ｃが形成されている。 Each cylinder mounting portion 7 of the second mounting body 5 has a mounting through-hole 7A in which the mounting cylinder portion 11A of the mounting member 11 can be inserted in a sliding contact state from the tube axis X direction, and the mounting through-hole 7A. Both fitting recesses 7B for receiving and holding the flange portion 11B of the mounting member 11 in the fitted state so as to be detachable from the reaction force receiving direction at the time of detachment movement or contraction operation on both opening edge sides, and the mounting through hole An opening 7C is formed in which the cylinder tube 6 can be mounted from the outside in the radial direction with respect to 7A and both fitting recesses 7B.

前記反力受け部８を構成するに、第２装着体５の管軸芯方向一端部には、前記流体圧シリンダＣの伸長作動による両管部１，２の離脱移動時において、前記受口管部１の開口周縁に連続する環状端面に対して管軸芯Ｘ方向から当接する第１反力受け部８Ａが一体形成されているとともに、前記第２装着体５の管軸芯方向他端部には、前記受口管部１の外周面における大径管部分に形成された環状溝３０内に対して管径方向から脱着自在で、且つ、前記流体圧シリンダＣの収縮作動による両管部１，２の接合移動時において、前記環状溝１Ａの管軸芯Ｘ方向で相対向する段差端面３０ａ，３０ｂのうち、受口管部１の受口開口側に位置する段差端面３０ａに対して管軸芯Ｘ方向から当接する第２反力受け部８Ｂが一体形成されている。 The reaction force receiving portion 8 is configured such that the one end portion in the tube axis direction of the second mounting body 5 has the receiving port when the both pipe portions 1 and 2 are moved away from each other by the extension operation of the fluid pressure cylinder C. A first reaction force receiving portion 8A that abuts from the tube axis X direction on an annular end surface that is continuous with the opening periphery of the tube portion 1 is integrally formed, and the other end in the tube axis direction of the second mounting body 5 is formed. The two pipes are detachable from the pipe radial direction with respect to the inside of the annular groove 30 formed in the large-diameter pipe portion on the outer peripheral surface of the receiving pipe part 1 and are contracted by the fluid pressure cylinder C. Of the step end faces 30a and 30b facing each other in the tube axis X direction of the annular groove 1A, the step end face 30a located on the receiving opening side of the receiving pipe part 1 is moved during the joining movement of the parts 1 and 2. The second reaction force receiving portion 8B that comes into contact with the tube axis X direction is integrally formed.

前記第１係止部１０と第２係止部２９は、流体圧シリンダＣのピストンロッド９に対して選択的に付け替え自在で、両管部１，２の離脱時には第１係止部１０を取付け、両管部１，２の接合時には第２係止部２９を取付ける。 The first locking portion 10 and the second locking portion 29 can be selectively replaced with respect to the piston rod 9 of the fluid pressure cylinder C, and the first locking portion 10 is moved when the both pipe portions 1 and 2 are detached. At the time of attachment and joining of both pipe parts 1 and 2, the second locking part 29 is attached.

前記第１係止部１０には、油圧シリンダＣのピストンロッド９の先端部に形成されたネジ孔９Ａに螺合固定される雄ネジ部１０Ａと、前記挾持アーム４Ｂに管軸芯Ｘ方向から係止可能な係止凹部１０Ｂが形成されている。 The first locking portion 10 includes a male screw portion 10A that is screwed and fixed to a screw hole 9A formed in a tip portion of the piston rod 9 of the hydraulic cylinder C, and the holding arm 4B from the tube axis X direction. A locking recess 10B that can be locked is formed.

前記第２係止部２９には、挾持アーム４Ｂに対して管周方向から係脱可能な略コの字状の係止アーム部２９Ａと、油圧シリンダＣのピストンロッド９の先端部に形成されたネジ孔９Ａに螺合固定される雄ネジ部２９Ｂが形成されている。 The second locking portion 29 is formed at a substantially U-shaped locking arm portion 29A that can be engaged and disengaged with respect to the holding arm 4B from the pipe circumferential direction, and a tip end portion of the piston rod 9 of the hydraulic cylinder C. A male screw portion 29B is formed to be screwed and fixed to the screw hole 9A.

前記第１装着体３及び挾持具４も第１実施形態又は第２実施形態で説明した構成と同一で、両管部１，２の離脱時には、第１装着体３の両側面のうち、受口管部１の存在側とは反対側の側面に挾持アーム４Ｂが位置する状態で挿口管部２に装着し、両管部１，２の接合時には、第１装着体３における受口管部１の存在側の側面に挾持アーム４Ｂが位置する状態で挿口管部２に装着する。
尚、その他の構成は、第１実施形態又は第２実施形態で説明した構成と同一であるから、同一の構成箇所には、第１実施形態又は第２実施形態と同一の番号を付記してそれの説明は省略する。 The first mounting body 3 and the holding device 4 are also the same as those described in the first embodiment or the second embodiment. It is attached to the insertion tube portion 2 in a state where the holding arm 4B is located on the side opposite to the side where the mouth tube portion 1 is present, and when the both tube portions 1 and 2 are joined, the reception tube in the first attachment body 3 is attached. The holding arm 4 B is attached to the insertion tube portion 2 in a state where the holding arm 4 B is positioned on the side surface of the portion 1.
Other configurations are the same as those described in the first embodiment or the second embodiment, and therefore, the same reference numerals as those in the first embodiment or the second embodiment are attached to the same components. The description thereof is omitted.

〔その他の実施形態〕
（１）上述の各実施形態では、前記第１装着体３を、挿入管部２に対して管径方向から装着可能な半円環状又はそれに近いほぼ半環状に形成し、かつ、前記第２装着体５を、受口管部１に対して管径方向から装着可能な半円環状又はそれに近いほぼ半環状に形成したが、この第１装着体３又は第２装着体５の少なくとも一方を揺動開閉式又は円周方向で複数の部品に分解可能な分割式の環状体から構成してもよい。 [Other Embodiments]
(1) In each of the above-described embodiments, the first mounting body 3 is formed in a semi-annular shape that can be mounted on the insertion tube portion 2 from the tube radial direction or a substantially semi-annular shape close thereto, and the second mounting body 3 The mounting body 5 is formed in a semi-annular shape that can be mounted on the receiving pipe portion 1 from the pipe radial direction or a substantially semi-annular shape close thereto, but at least one of the first mounting body 3 and the second mounting body 5 is formed. You may comprise from a rocking | fluctuating open / close type or the division | segmentation type | formula annular body which can be decomposed | disassembled into several parts in the circumferential direction.

（２）前記第２装着体５のシリンダ装着部７としては、流体圧シリンダＣを反力受け方向から脱着自在に所定姿勢で係合保持（差し込み保持）することのできる構成であれば、如何なる構造に構成してもよい。 (2) The cylinder mounting portion 7 of the second mounting body 5 may be any configuration as long as the fluid pressure cylinder C can be engaged and held (inserted and held) in a predetermined posture so as to be detachable from the reaction force receiving direction. It may be configured in a structure.

（３）前記第１装着体３に設けられる挾持具４としては、前記挿口管部２の外周面２ａを挾持する状態と挾持解除状態とに切り替え可能な構造であれば、如何なる構造に構成してもよい。 (3) The holding device 4 provided in the first mounting body 3 may be configured in any structure as long as it can be switched between a holding state and a holding release state of the outer peripheral surface 2a of the insertion tube portion 2. May be.

（４）前記流体圧シリンダＣとして、上述の各実施形態では、油圧ポンプ１３から供給される圧油によって伸長作動され、且つ、シリンダチューブ６に内蔵された図外のバネの弾性復元力で収縮作動される単動形油圧シリンダを使用したが、複動型の油圧シリンダを用いてもよく、さらに、空気圧で作動するエアシリンダ等を用いてもよい。 (4) As the fluid pressure cylinder C, in each of the above-described embodiments, the fluid pressure cylinder C is extended by the pressure oil supplied from the hydraulic pump 13 and contracted by the elastic restoring force of a spring (not shown) built in the cylinder tube 6. Although the single-acting hydraulic cylinder to be operated is used, a double-acting hydraulic cylinder may be used, and an air cylinder or the like that is operated by air pressure may be used.

本発明の第１実施形態を示す管離脱装置の全体の一部切欠き平面図The partially notched top view of the whole pipe | tube removal apparatus which shows 1st Embodiment of this invention 管離脱装置の全体の側面図Overall side view of the tube detachment device 管離脱装置の全体の分解斜視図Exploded perspective view of the entire tube detachment device 第２装着体の正面図Front view of the second mounting body 第１装着体の正面図Front view of the first wearing body 第２装着体のシリンダ装着部に流体圧シリンダを装着する前の分解一部切欠き側面図Side view of the disassembled partly cutout before the fluid pressure cylinder is mounted on the cylinder mounting portion of the second mounting body 第２装着体のシリンダ装着部に流体圧シリンダを装着するときの一部切欠き側面図Partially cutaway side view when the hydraulic cylinder is mounted on the cylinder mounting portion of the second mounting body 第２装着体のシリンダ装着部に流体圧シリンダを装着するときの正面図Front view when the hydraulic cylinder is mounted on the cylinder mounting portion of the second mounting body 本発明の第２実施形態を示す管接合装置の一部切欠き底面図The partially cutaway bottom view of the pipe | tube joining apparatus which shows 2nd Embodiment of this invention. 本発明の第２実施形態における管接合装置の全体の側面図The side view of the whole pipe | tube joining apparatus in 2nd Embodiment of this invention. 本発明の第３実施形態を示す管脱着装置の分解一部切欠き側面図The disassembled partly cutaway side view of the pipe detaching apparatus showing the third embodiment of the present invention

符号の説明Explanation of symbols

Ｃ流体圧シリンダ
１受口管部
２挿口管部
３第１装着体
４挾持部
５第２装着体
６シリンダチューブ
７シリンダ装着部
７Ａ装着貫通孔
７Ｂ嵌合凹部
７Ｃ開口部
８反力受け部
９ピストンロッド
１０係止部（第１係止部）
１１取付け部材
１１Ａ取付け筒部
１１Ｂ鍔部
１５管当接部（第１管当接部）
１６第１締結具
１７管当接部（第２管当接部）
１８第２締結具
２９第２係止部 C Fluid pressure cylinder 1 Receiving tube portion 2 Insertion tube portion 3 First mounting body 4 Holding portion 5 Second mounting body 6 Cylinder tube 7 Cylinder mounting portion 7A Mounting through hole 7B Fitting recess 7C Opening portion 8 Reaction force receiving portion 9 Piston rod 10 Locking part (first locking part)
11 attachment member 11A attachment cylinder part 11B collar part 15 pipe contact part (first pipe contact part)
16 1st fastener 17 Pipe contact part (2nd pipe contact part)
18 2nd fastener 29 2nd latching | locking part

Claims

受口管部に挿入接続可能な挿口管部に対して管径方向から脱着自在に装着される第１装着体に、前記挿口管部の外周面を挾持する状態と挾持解除状態とに切り替え可能な挾持具が設けられているとともに、前記受口管部に対して管径方向から脱着自在に装着される第２装着体には、挾持状態の挾持具を介して両管部に離脱移動力を付与する流体圧シリンダを反力受け方向から脱着自在に所定姿勢で係合保持するシリンダ装着部と、前記流体圧シリンダによる両管部の離脱移動時において前記受口管部に管軸芯方向から当接する反力受け部が設けられ、前記流体圧シリンダのピストンロッドには、前記挾持具に対して管軸芯方向から当接自在で、かつ、その当接状態でのピストンロッドの伸長移動に伴って挾持具を挾持状態に切り替え作動させる係止部が設けられている管離脱装置。 The first mounting body, which is detachably mounted from the tube diameter direction to the insertion tube portion that can be inserted and connected to the receiving tube portion, holds the outer peripheral surface of the insertion tube portion in the holding release state. A switchable gripping tool is provided, and the second mounting body that is detachably mounted on the receiving pipe portion from the pipe diameter direction is detached from both pipe portions via the gripping tool in the gripped state. A cylinder mounting portion that engages and holds a fluid pressure cylinder that applies a moving force in a predetermined posture so as to be detachable from a reaction force receiving direction, and a pipe shaft that is connected to the receiving tube portion when the both pipe portions are separated by the fluid pressure cylinder. A reaction force receiving portion that abuts from the core direction is provided, and the piston rod of the fluid pressure cylinder is capable of abutting on the holding tool from the tube axis direction, and the piston rod in the abutting state is As the extension moves, the holding tool is switched to the holding state and activated. Tube withdrawal device engaging portion is provided.

前記流体圧シリンダのシリンダチューブには、環状の鍔部を突設してある筒状の取付け部材が外装固定されているとともに、前記シリンダ装着部には、前記取付け部材の取付け筒部が管軸芯方向から摺接状態で挿入自在な装着貫通孔と、該装着貫通孔の一方の開口端縁側において前記取付け部材の鍔部を反力受け方向から脱着自在に嵌合状態で受止め保持する嵌合凹部とが形成され、さらに、前記装着貫通孔及び嵌合凹部に対して前記シリンダチューブを径方向外方から装着可能な開口部が形成されている請求項１記載の管離脱装置。 The cylinder tube of the fluid pressure cylinder is externally fixed with a cylindrical mounting member having an annular flange projecting, and the mounting cylinder portion of the mounting member is connected to the cylinder mounting portion. A mounting through-hole that can be inserted in a sliding state from the core direction, and a fitting that receives and holds the flange portion of the mounting member in a fitted state so as to be detachable from the reaction force receiving direction on one opening edge side of the mounting through-hole. The pipe detachment device according to claim 1, wherein a fitting recess is formed, and an opening for mounting the cylinder tube from the radially outer side is formed in the mounting through hole and the fitting recess.

前記取付け部材の取付け筒部の外周面には、前記鍔部をシリンダ装着部の嵌合凹部に受止め保持させた状態で装着貫通孔の他方の開口端縁側に当接可能な状態で対面する抜止め突起が形成されているとともに、前記抜止め突起が、前記開口部を管軸芯方向に沿って通過移動可能な大きさに構成されている請求項２記載の管離脱装置。 The outer peripheral surface of the mounting cylinder portion of the mounting member faces the other opening edge side of the mounting through hole in a state where the flange portion is received and held in the fitting recess of the cylinder mounting portion. The tube detachment device according to claim 2, wherein a retaining protrusion is formed, and the retaining protrusion is configured to have a size capable of moving through the opening along the tube axis direction.

前記第１装着体には、挿口管部の管周方向の二点に当接する管当接部と、該管当接部に対して管径方向で略対面する側からの締付け操作で第１装着体を挿口管部に抜止め固定する第１締結具が設けられているとともに、前記第２装着体には、受口管部の管周方向の二点に当接する管当接部と、該管当接部に対して管径方向で略対面する側からの締付け操作で第２装着体を受口管部に抜止め固定する第２締結具が設けられている請求項１〜３のいずれか１項に記載の管離脱装置。 The first mounting body includes a tube contact portion that contacts two points in the tube circumferential direction of the insertion tube portion, and a tightening operation from a side substantially facing the tube contact portion in the tube radial direction. A first fastener for retaining and fixing one attachment body to the insertion tube portion is provided, and the second attachment body is provided with a tube contact portion that contacts two points in the pipe circumferential direction of the receiving tube portion. And a second fastener for retaining and fixing the second mounting body to the receiving tube portion by a tightening operation from the side substantially facing the tube contact portion in the tube radial direction. 4. The tube detachment device according to any one of 3 above.

受口管部に挿入接続可能な挿口管部に対して管径方向から脱着自在に装着される第１装着体には、前記挿口管部の外周面を挾持する状態と挾持解除状態とに切り替え可能な挾持具が設けられているとともに、前記受口管部に対して管径方向から脱着自在に装着される第２装着体には、挾持状態の挾持具を介して両管部に接合移動力を付与する流体圧シリンダを反力受け方向から脱着自在に所定姿勢で係合保持するシリンダ装着部と、前記流体圧シリンダによる両管部の接合移動時において前記受口管部に管軸芯方向から当接する反力受け部が設けられ、前記流体圧シリンダのピストンロッドには、前記挾持具に対して管軸芯方向から当接自在で、かつ、その当接状態でのピストンロッドの収縮移動に伴って挾持具を挾持状態に切り替え作動させる係止部が設けられている管接合装置。 The first attachment body that is detachably attached to the insertion tube portion that can be inserted and connected to the reception tube portion from the tube diameter direction includes a state in which the outer peripheral surface of the insertion tube portion is held, and a holding release state. And a second mounting body that is detachably attached to the receiving pipe portion from the radial direction of the pipe, and is attached to both pipe portions via the holding fixture in the holding state. A cylinder mounting part that engages and holds a fluid pressure cylinder that applies a joining movement force in a predetermined posture so as to be detachable from the reaction force receiving direction, and a pipe that is connected to the receiving pipe part during joining movement of both pipe parts by the fluid pressure cylinder. A reaction force receiving portion that comes into contact with the axial direction is provided, and the piston rod of the fluid pressure cylinder is capable of coming into contact with the gripper from the axial direction of the tube and is in the contact state. The holding device is switched to the holding state as the contraction movement of the Tubing interface device engaging portion is provided that.

受口管部に挿入接続可能な挿口管部に対して管径方向から脱着自在に装着される第１装着体には、前記挿口管部の外周面を挾持する状態と挾持解除状態とに切り替え可能な挾持具が設けられているとともに、前記受口管部に対して管径方向から脱着自在に装着される第２装着体には、挾持状態の挾持具を介して両管部に離脱移動力又は接合移動力を付与する流体圧シリンダを反力受け方向から脱着自在に所定姿勢で係合保持するシリンダ装着部と、前記流体圧シリンダによる両管部の離脱移動時又は接合移動時において前記受口管部に管軸芯方向から当接する反力受け部が設けられ、前記流体圧シリンダのピストンロッドには、前記挾持具に対して管軸芯方向から当接自在で、かつ、その当接状態でのピストンロッドの伸長移動又は収縮移動に伴って挾持具を挾持状態に切り替え作動させる係止部が設けられている管脱着装置。 The first attachment body that is detachably attached to the insertion tube portion that can be inserted and connected to the reception tube portion from the tube diameter direction includes a state in which the outer peripheral surface of the insertion tube portion is held, and a holding release state. And a second mounting body that is detachably attached to the receiving pipe portion from the radial direction of the pipe, and is attached to both pipe portions via the holding fixture in the holding state. A cylinder mounting portion that engages and holds a fluid pressure cylinder that applies a disengagement moving force or a joining moving force in a predetermined posture so as to be detachable from the reaction force receiving direction, and when the both fluid pipes are detached or joined. A reaction force receiving portion that comes into contact with the receiving tube portion from the tube axis direction is provided, and the piston rod of the fluid pressure cylinder is capable of contacting the holding tool from the tube axis direction, and Extension or contraction movement of the piston rod in the contact state With tube desorber locking portion for switching operation are provided in the clamping state clamping device with.