Disassembling tool and disassembling method for corrugated pipe

Abstract

The invention discloses a dismounting tool and a dismounting method for a corrugated pipe, and relates to the technical field of pipeline dismounting, the dismounting tool for the corrugated pipe is characterized in that the corrugated pipe is suitable for being connected between two connecting pipelines, and connecting flanges correspondingly connected with the two connecting pipelines are arranged at the two ends of the corrugated pipe; the disassembling tool comprises a tool frame and a driving part, and the tool frame is movably installed outside the corrugated pipe. The driving part is connected with one of the two connecting flanges and is suitable for pushing the tool frame to drive the other connecting flange to be separated from the corresponding connecting pipeline. According to the embodiment of the invention, the dismounting efficiency of the corrugated pipe and the connecting pipeline can be improved, and the influence of rebound acting force of the corrugated pipe is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline disassembly, and in particular to a disassembly tool and a disassembly method for a corrugated pipe. Background Art

[0002] Deuterium-tritium reaction is the mainstream route of current controlled nuclear fusion technology. After the fusion reaction occurs, radioactive tritium will remain inside the controlled nuclear fusion device and in the connecting pipes, causing the relevant components to be in a tritium-related environment. In this environment, metal bellows are usually used for pipe connections of controlled nuclear fusion devices as sealing and isolation elements in a vacuum environment. In addition, metal bellows can also compensate for the errors caused by thermal deformation of the connecting pipes, play a role in shock absorption, vibration absorption and pipeline settlement deformation, thereby improving seismic performance.

[0003] However, in the prior art, when the metal bellows is repaired or replaced, it is difficult to disassemble the metal bellows from the connecting pipe due to the large mass of the metal bellows and the large rebound force. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a disassembly tool for a corrugated pipe, which improves the removal efficiency of the corrugated pipe and reduces the influence of the rebound force of the corrugated pipe.

[0005] According to the disassembly tool for the bellows of the embodiment of the present invention, the bellows is suitable for being connected between two connecting pipes, and both ends of the bellows are provided with connecting flanges respectively connected to the two connecting pipes; the disassembly tool comprises a tool frame and a driving member, and the tool frame can be movably installed outside the bellows; the driving member is connected to one of the two connecting flanges, and is suitable for pushing the tool frame to drive the other connecting flange to separate from the corresponding connecting pipe.

[0006] According to the disassembly tool for the corrugated pipe of the embodiment of the present invention, the tool frame is connected to a connecting flange, and one connecting flange and the connecting pipe are first disassembled, and then the connecting flange is driven by a driving member to move in the direction of another connecting pipe so that the bellows is squeezed, thereby continuing to disassemble another connecting flange between the other connecting pipe and the bellows. After the disassembly is completed, the disassembly tool and the bellows are moved and transported away. The process of the bellows being squeezed can provide a moving space for the removal of the bellows. The squeezing method of the driving member saves manpower and time. The design of the disassembly tool can overcome the large rebound force of the bellows and prevent the bellows from generating a large rebound force and reducing the entire disassembly process with the connecting pipe. The embodiment of the present invention improves the disassembly efficiency between the bellows and the connecting pipe.

[0007] According to the disassembly tooling for the corrugated pipe according to the embodiment of the present invention, the driving part includes an electric cylinder body, an electric cylinder push rod and a motor, and the connecting flange includes a first flange and a second flange; the motor drives the electric cylinder push rod to extend and retract relative to the electric cylinder body, the electric cylinder body is detachably connected to the first flange and the electric cylinder push rod is movable relative to the first flange, the electric cylinder push rod is detachably connected to the tooling frame, and the electric cylinder push rod is suitable for driving the tooling frame to move axially when extending and driving the second flange to separate from the corresponding connecting pipe.

[0008] According to the disassembly tool for the corrugated pipe of the embodiment of the present invention, the output shaft of the motor is arranged in parallel with the electric cylinder body and the electric cylinder push rod.

[0009] According to the disassembly tool for the corrugated pipe of the embodiment of the present invention, the tool frame includes a first fixing ring, a second fixing ring and a connecting structure; the first fixing ring and the second fixing ring are distributed along the axial direction of the corrugated pipe and are connected by the connecting structure, the electric cylinder body is detachably connected to the first flange and the electric cylinder push rod is detachably connected to the first fixing ring, the second fixing ring is detachably connected to the second flange, and the electric cylinder push rod drives the tool frame and the corrugated pipe to be squeezed in a direction close to the first flange, so that the second flange is separated from the corresponding connecting pipe.

[0010] According to the disassembly tool for the corrugated pipe according to the embodiment of the present invention, the connecting structure is a screw assembly, and the screw assembly includes a screw and a nut. The screw is passed through the first fixing ring and the second fixing ring, and is locked by the nuts on both sides of the first fixing ring and both sides of the second fixing ring.

[0011] According to the disassembly tool for the corrugated pipe of the embodiment of the present invention, the number of the screw assemblies is multiple groups, and the multiple groups of the screw assemblies are distributed at intervals along the circumference of the connecting pipe and the corrugated pipe.

[0012] According to the disassembly tool for the bellows in the embodiment of the present invention, the driving member is located between two groups of the lead screw assemblies adjacent to each other in the circumferential direction of the bellows.

[0013] According to the disassembly tool for the bellows according to the embodiment of the present invention, the first flange and the second flange are both provided with a radially extending connecting seat, the second fixing ring is detachably connected to the connecting seat of the second flange along the axial direction of the bellows, and the electric cylinder body is detachably connected to the connecting seat of the first flange along the axial direction of the bellows.

[0014] According to the disassembly tool for the corrugated pipe of the embodiment of the present invention, the number of the driving members is multiple groups, and the multiple groups of driving members are distributed at intervals along the circumference of the corrugated pipe.

[0015] An embodiment of the present invention discloses a method for disassembling a bellows, which uses the above-mentioned tooling for disassembling the bellows, and also includes: installing the tooling frame and the driving member; disassembling one of the connecting flanges and the corresponding connecting pipe; driving the driving member so that the driving member drives the disassembled connecting flange away from the corresponding connecting pipe; disassembling the other connecting flange and the corresponding connecting pipe; moving the bellows and the tooling frame in a compression direction away from the bellows, and removing the tooling frame and the bellows.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 is a schematic structural diagram of a corrugated pipe connected between two connecting pipes according to an embodiment of the present invention; Figure 2 is a schematic structural diagram of a driving member connected to a first flange according to an embodiment of the present invention; Figure 3 It is a structural schematic diagram of an embodiment of the present invention in which a first fixing ring is sleeved on the periphery of a connecting pipe and connected to a driving member; Figure 4 is a schematic structural diagram of the connection between the second fixing ring and the second flange according to an embodiment of the present invention; Figure 5 Schematic diagram of a structure in which a first fixing ring and a second fixing ring are connected via a connecting structure according to an embodiment of the present invention Figure 1 ; Figure 6 Schematic diagram of a structure in which a first fixing ring and a second fixing ring are connected via a connecting structure according to an embodiment of the present invention Figure 2 ; Figure 7 is a schematic structural diagram of a driving member according to an embodiment of the present invention; Figure 8 It is a schematic flow chart of a method for disassembling a bellows according to an embodiment of the present invention.

[0018] Reference numerals: Second connecting pipe 101, second pipe flange 1011, first connecting pipe 102, first pipe flange 1021, bellows 103, first flange 1031, second flange 1032, connecting seat 1033, first connecting hole 1034, second connecting hole 1035, flange bolt 104, tooling frame 1, driving part 2, electric cylinder body 21, connecting plate 211, third connecting hole 2111, electric cylinder push rod 22, motor 23, first fixing ring 3, arc segment 31, bending portion 311, second fixing ring 4, connecting structure 5, screw 51, nut 52. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Reference below Figure 1-7 The disassembly tool for the bellows 103 according to the embodiment of the present invention is described, which reduces the influence of the rebound force of the bellows 103 and improves the removal efficiency of the bellows 103.

[0022] like Figure 1-7As shown, according to a disassembly tool of a bellows 103 according to an embodiment of the present invention, the bellows 103 is suitable for being connected between two connecting pipes, and both ends of the bellows 103 are provided with connecting flanges corresponding to the two connecting pipes respectively.

[0023] Among them, the disassembly tooling includes a tooling frame 1 and a driving member 2, the tooling frame 1 can be movably installed outside the bellows 103; the driving member 2 is connected to one of the two connecting flanges and is suitable for pushing the tooling frame 1 to drive the other connecting flange to separate from the corresponding connecting pipe.

[0024] In practice, the bellows 103 is installed between two adjacent connecting pipes. The bellows 103 can be a metal bellows with a large mass. It generally compensates for the error caused by the thermal deformation of the connecting pipes. When the bellows 103 needs to be replaced and disassembled, the connection between one end of the bellows 103 and one connecting pipe can be disassembled, and then the connection between the other end of the bellows 103 and the other connecting pipe can be disassembled, and then the bellows 103 can be transported away; first, when the bellows 103 is disassembled from one end of a connecting pipe, and then the connection between the other end of the bellows 103 and the other connecting pipe is disassembled, due to the influence of the rebound force of the bellows 103, the reaction force on the nut when it is screwed in / out will be large, and the overall disassembly process is difficult and slow, so it is difficult to separate and remove the bellows 103 from the connecting pipe.

[0025] By setting up a tooling frame 1, one end of the tooling frame 1 along the axial direction of the bellows 103 is connected to a connecting flange, and the other end is used as a free end, and a driving member 2 is connected to the tooling frame 1, and the driving member 2 is an electric driving member. It should be noted that the connecting flange needs to have a connecting portion connected to the tooling frame 1 to facilitate the connection between the tooling frame 1 and the connecting flange; of course, the tooling frame 1 can also be connected to a connecting flange by a card-type connection or other detachable methods. The tooling frame 1 can drive the bellows 103 to separate from the corresponding connecting pipe when the bellows 103 and the corresponding connecting pipe need to be separated.

[0026] When the connecting flange at one end of the bellows 103 is disassembled from the corresponding connecting pipe, the driving member 2 drives the tool frame 1 to move along the axial direction of the bellows 103, so that a gap is left between the connecting flange at one end of the bellows 103 and the corresponding connecting pipe, and the tool frame 1 can also increase the stability of the bellows 103, which facilitates the disassembly of the flange bolts 104 between the connecting flange at the other end of the bellows 103 and another connecting pipe, thereby increasing the disassembly speed. After the disassembly is completed, space can be reserved for the movement of the bellows 103, so that the bellows 103 can be better removed together with the tool frame 1.

[0027] Of course, when the bellows 103 needs to be installed between two adjacent connecting pipes, the bellows 103 can also be connected to the tooling frame 1 as a whole, and the bellows 103 can be compressed by the driving member 2 to a distance smaller than the distance between the two adjacent connecting pipes, so as to facilitate the rapid placement of the bellows 103 between the two adjacent connecting pipes, and the driving member 2 is operated to drive the tooling frame 1 to move, so that the tooling frame 1 gradually reduces the compression of the bellows 103 until the two ends of the bellows 103 are in contact with the two adjacent connecting pipes, and then the two ends of the bellows 103 are connected to the two adjacent connecting pipes. That is, this tooling is not only suitable for disassembling the bellows 103, but also for installing the bellows 103, thereby improving the installation efficiency of the bellows 103. The embodiment of the present invention mainly describes the disassembly of the bellows 103.

[0028] In addition, in a tritium environment, when squeezing the bellows 103, since the bellows 103 and the connecting pipe have been disassembled, the gas in the connecting pipe will flow out. If the squeezing speed is too slow, the operator will be exposed to the tritium environment for a long time, which will endanger the health of the operator. By setting the drive member 2, the efficiency of squeezing the bellows 103 can be improved, thereby improving the efficiency of removing the bellows 103 relative to the two connecting pipes. Of course, the embodiments of the present invention are not limited to operating in a tritium environment, but can also be operated in various other gases with radiation or infectious hazards to reduce the operator's exposure to hazardous environments for a long time.

[0029] In some embodiments, the driving member 2 includes an electric cylinder body 21, an electric cylinder push rod 22 and a motor 23, and the connecting flange of the bellows 103 includes a first flange 1031 and a second flange 1032; the motor 23 drives the electric cylinder push rod 22 to extend and retract relative to the electric cylinder body 21, the electric cylinder body 21 is detachably connected to the first flange 1031 and the electric cylinder push rod 22 is movable relative to the first flange 1031, the electric cylinder push rod 22 is detachably connected to the tooling frame 1, and the electric cylinder push rod 22 is suitable for driving the tooling frame 1 to move axially when extending and driving the second flange 1032 to separate from the corresponding connecting pipe.

[0030] Combination Figure 1 and Figure 6 As shown, the connecting pipe includes a first connecting pipe 102 and a second connecting pipe 101, the bellows 103 is connected between the first connecting pipe 102 and the second connecting pipe 101, and the left end of the bellows 103 is a first flange 1031, and the right end is a second flange 1032, the first connecting pipe 102 is provided with a first pipe flange 1021, and the second connecting pipe 101 is provided with a second pipe flange 1011, the first flange 1031 of the bellows 103 is connected to the first pipe flange 1021, and the second flange 1032 of the bellows 103 is connected to the second pipe flange 1011.

[0031] The electric cylinder body 21 is connected to the first flange 1031, and the first flange 1031 is used to support the electric cylinder body 21. The electric cylinder push rod 22 is connected to one end of the tooling frame 1, and the other end of the tooling frame 1 is connected to the second flange 1032. In actual operation, the flange bolts 104 between the second flange 1032 of the bellows 103 and the second pipe flange 1011 are first removed, and the driving member 2 is controlled to work, so that the electric cylinder push rod 22 of the driving member 2 moves toward the side away from the second connecting pipe 101, that is, it drives Figure 6 The tooling frame 1 moves toward the left side. At this time, the second flange 1032 and the second pipe flange 1011 are disengaged, and a moving space is left between the second flange 1032 and the second pipe flange 1011. Then, the first flange 1031 on the left side of the bellows 103 and the first pipe flange 1021 are disassembled. After the tooling frame 1 is flange-connected to the bellows 103, the stability of the bellows 103 can be improved, and the disassembly efficiency between the first flange 1031 on the left side and the first pipe flange 1021 is improved. Then, the tooling frame 1 as a whole and the bellows 103 are moved toward the right side. Since the moving space is reserved during the extrusion of the bellows 103, it is convenient to move the tooling frame 1 and the bellows 103 out together, and the tooling frame 1 and the bellows 103 are placed in a safe place and the bellows 103 and the tooling frame 1 can be disassembled.

[0032] Of course, it should be noted that the driving member 2 can also be driven by a cylinder, a hydraulic cylinder, etc. to drive the tooling frame 1 to move.

[0033] In some embodiments, the output shaft of the motor 23 is arranged in parallel with the electric cylinder push rod 22 and the electric cylinder body 21. In practice, one end of the motor 23 and one end of the electric cylinder body 21 share a base, and the electric cylinder body 21 and the output shafts of the motor 23 are arranged in parallel, then a transmission assembly can be arranged in the base, the electric cylinder push rod 22 can be a screw rod, and the transmission assembly can be a gear set, such as a first gear is arranged at the output end of the motor 23, and a rotating second gear is arranged in the base, and the second gear is sleeved on the screw rod and threadedly connected with the screw 51. When the motor 23 rotates, it drives the first gear to rotate, the first gear drives the second gear to rotate, and the rotation of the second gear drives the electric cylinder push rod 22 to rotate, so that the electric cylinder push rod 22 can be extended and retracted, so that the bellows 103 is compressed under the action of electric power, saving manpower and material resources; at the same time, the output shaft of the motor 23 is arranged in parallel with the electric cylinder body 21, which can also improve the integration of the drive member 2 and save the space occupied by the drive member 2 in the length direction of the tooling frame 1.

[0034] In some embodiments, the tooling frame 1 includes a first fixing ring 3, a second fixing ring 4 and a connecting structure 5; the first fixing ring 3 and the second fixing ring 4 are distributed along the axial direction of the bellows 103 and are connected by the connecting structure 5, the electric cylinder body 21 is detachably connected to the first flange 1031 and the electric cylinder push rod 22 is detachably connected to the first fixing ring 3, the second fixing ring 4 is detachably connected to the second flange 1032, and the electric cylinder push rod 22 drives the tooling frame 1 and the bellows 103 to be squeezed in the direction close to the first flange 1031, so that the second flange 1032 is separated from the corresponding connecting pipe.

[0035] Reference Figure 6 As shown, the first fixing ring 3 and the second fixing ring 4 are axially spaced and connected by a connecting structure 5 to form a tooling frame 1. The first fixing ring 3 is connected by a plurality of detachable arc segments 31. A bending portion 311 is provided at the end of each arc segment 31. The bending portion 311 is provided with a mounting hole. Two adjacent arc segments 31 are connected by bolts passing through the mounting holes of the bending portions 311, thereby realizing rapid assembly of the first fixing ring 3 and the second fixing ring 4 and realizing that the first fixing ring 3 and the second fixing ring 4 are sleeved on the outer periphery of the corrugated tube 103.

[0036] In addition, the second fixing ring 4 and the second flange 1032 of the bellows 103 can be fixedly connected by bolts, and the first fixing ring 3 does not need to be connected to the first flange 1031 and the first pipe flange 1021. The first fixing ring 3 only needs to be connected and locked with the electric cylinder push rod 22 through a connecting nut. For example, a connecting nut is firstly sleeved on the end of the electric cylinder push rod 22, and then the electric cylinder push rod 22 is passed through the connecting hole of the first fixing ring 3, and a connecting nut is sleeved on the end of the electric cylinder push rod 22 and on the other side of the first fixing ring 3, and the two connecting nuts are locked, so that the electric cylinder push rod 22 and the first fixing ring 3 are detachably and fixedly connected, and the electric cylinder push rod 22 is connected to the electric cylinder push rod 22, the electric cylinder body 21 is connected to the first flange 1031, and the tool frame 1 is connected to the second flange 1032, which is equivalent to the disassembly tool and the bellows 103 forming a whole, thereby improving the stability of the bellows 103 and making it more convenient to move the bellows 103.

[0037] Furthermore, the inner diameter of the first fixing ring 3 is larger than the outer diameter of the first pipe flange 1021, thereby preventing the first pipe flange 1021 from affecting the axial movement of the tooling frame 1. Figure 6 When the bellows 103 moves to the left, the second flange 1032 on the right side of the bellows 103 can be smoothly driven to separate from the second pipe flange 1011, thereby facilitating the subsequent removal of the bellows 103.

[0038] In some embodiments, the connecting structure 5 is a screw assembly, which includes a screw 51 and a nut 52. The screw 51 is passed through the first fixing ring 3 and the second fixing ring 4, and is locked on both sides of the first fixing ring 3 and both sides of the second fixing ring 4 by nuts 52.

[0039] By setting a lead screw assembly, the first fixing ring 3 and the second fixing ring 4 are locked and connected by the lead screw 51 and the nut 52, so that the integrity of the tooling frame 1 and the bellows 103 is enhanced. When removing the bellows 103, the bellows 103 is removed by removing the tooling frame 1, so as to prevent the bellows 103 from changing its state and causing difficulty in removal; and the spacing between the first fixing ring 3 and the second fixing ring 4 is fixed, that is, the first fixing ring 3 is moved toward Figure 6 When the first fixing ring 3 and the second fixing ring 4 move to the left, the second fixing ring 4 can be driven to move toward the left together, and the amount of movement can be easily controlled, thereby facilitating the control of the compression amount of the bellows 103, thereby avoiding the change in the spacing between the first fixing ring 3 and the second fixing ring 4 and affecting the compression of the bellows 103.

[0040] In some embodiments, there are multiple groups of screw assemblies, and the multiple groups of screw assemblies are distributed at intervals along the circumference of the connecting pipe and the bellows 103.

[0041] That is, a plurality of sets of lead screw assemblies are arranged on the circumference of the first fixing ring 3 and the second fixing ring 4, so that when the bellows 103 is compressed, the compression force of the bellows 103 is made more uniform. For example, at the second flange 1032 of the bellows 103, there may be a problem that the distances between different circumferential positions of the second flange 1032 and the connecting pipe are not equal. In this way, some circumferential positions of the second flange 1032 have been separated from the second pipe flange 1011, but some positions have not yet been separated, which makes it inconvenient to remove the bellows 103 from the first connecting pipe 102 and the second connecting pipe 101.

[0042] In the embodiment of the present invention, multiple screw assemblies are arranged to make the compression bellows 103 evenly stressed, and the compression distance of the bellows 103 can be more easily controlled. If the compression distance is too large, the bellows 103 and the disassembly tool need to move too far to the right when removing the bellows 103, making removal inconvenient. If the compression distance is too small, the bellows 103 may still be in extrusion contact with the second connecting pipe 101. Under the action of the elastic force of the bellows 103, it is also inconvenient to remove the bellows 103 from the first connecting pipe 102 and the second connecting pipe 101. Therefore, by making the compression force of the bellows 103 even, it is convenient to control the compression amount, thereby selecting a suitable compression amount, and facilitating the removal of the bellows 103 relative to the first connecting pipe 102 and the second connecting pipe 101.

[0043] In some embodiments, the driving member 2 is located between two sets of screw assemblies adjacent to each other in the circumferential direction of the bellows 103 .

[0044] Reference Figure 5 and Figure 6 As shown, the driving member 2 is arranged between two adjacent groups of screw assemblies to avoid interference between the driving member 2 and the screw assembly, and the screw assembly enhances the integrity between the first fixing ring 3 and the second fixing ring 4. At the same time, the driving member 2 not only plays a driving role, but also enhances the integrity between the first flange 1031 of the bellows 103 and the first fixing ring 3, that is, enhances the integrity of the bellows 103 and the tooling frame 1, then, moving the rigid tooling frame 1 is equivalent to moving the bellows 103, and moving the rigid tooling frame 1 is more convenient than moving the bellows 103.

[0045] In some embodiments, the first flange 1031 and the second flange 1032 are both provided with a radially extending connecting seat 1033, the second fixing ring 4 is detachably connected to the connecting seat 1033 along the axial direction of the bellows 103, and the electric cylinder body 21 is detachably connected to the connecting seat 1033 of the first flange 1031 along the axial direction of the bellows 103.

[0046] Reference Figure 1 As shown, the first flange 1031 and the second flange 1032 are both provided with a radially extending connection seat 1033, the connection seat 1033 is provided with a first connection hole 1034 located in the middle, and the first connection hole 1034 is surrounded by a second connection hole 1035. When the connection seat 1033 of the first flange 1031 is connected to the electric cylinder body 21, the electric cylinder push rod 22 extends out of the first connection hole 1034, and a connecting plate 211 is provided at the end of the electric cylinder body 21, and the connecting plate 211 has a third connection hole 2111. The connecting plate 211 and the connection seat 1033 are connected by a connecting piece through the second connection hole 1035 and the third connection hole 2111, so that the electric cylinder body 21 can be supported and the electric cylinder push rod 22 can be extended out of the first connection hole 1034 and connected to the first fixing ring 3.

[0047] When the connecting seat 1033 of the second flange 1032 is connected to the second fixing ring 4, the connecting piece passes through the mounting hole of the second fixing ring 4 and the second connecting hole 1035 of the connecting seat 1033, so as to maintain the connection between the second fixing ring 4 and the second flange 1032, thereby facilitating the movement of the second flange 1032 when the tooling frame 1 moves. When disassembling, the disassembly tooling and the bellows 103 can be moved as a whole to a safe or convenient position for disassembly.

[0048] In some embodiments, the number of the driving members 2 can be multiple groups, and the multiple groups of driving members 2 are distributed at intervals along the circumference of the bellows 103.

[0049] Then, multiple groups of driving members 2 are arranged along the circumference of the bellows 103. For example, three groups of driving members 2 can be arranged, and the distance between two adjacent groups of driving members 2 is equal, to ensure that the force is uniform during driving, so that the bellows 103 can be compressed to the required degree more quickly, which is convenient for controlling the compression amount of the bellows 103. The bellows 103 can be compressed according to actual needs to prevent the bellows 103 from rebounding and affecting the removal efficiency.

[0050] The embodiment of the present invention discloses a method for disassembling a bellows 103, using the above-mentioned disassembly tool for the bellows 103, such as Figure 8 As shown, including: S1: Install the tooling frame 1 and the drive member 2; refer to Figure 2-5 As shown, first, the electric cylinder body 21 of the driving member 2 is connected to the first flange 1031, and then the first fixing ring 3 is spliced ​​and connected to the periphery of the side close to the first connecting pipe 102, and the electric cylinder push rod 22 is connected to the first fixing ring 3; then the second fixing ring 4 is spliced ​​and connected to the periphery of the second flange 1032 close to the bellows 103, and the second fixing ring 4 is fixedly connected to the second flange 1032, and then the screw assembly is connected between the first fixing ring 3 and the second fixing ring 4, so that the first fixing ring 3 and the second fixing ring 4 are connected as a whole, and the distance between the first fixing ring 3 and the second fixing ring 4 is ensured to remain unchanged, so that when the electric cylinder push rod 22 drives the first fixing ring 3 to move, the second fixing ring 4 can be driven to move to compress the bellows 103.

[0051] S2: Disassemble a connecting flange and the corresponding connecting pipe; that is, Figure 6 The second flange 1032 and the second pipe flange 1011 are disassembled to facilitate the subsequent separation of the bellows 103 and the second connecting pipe 101.

[0052] S3: Drive the driving member 2 so that the driving member 2 drives the disassembled connecting flange away from the corresponding connecting pipe; in practice, the motor 23 can be controlled by the controller to rotate and drive the electric cylinder push rod 22 to rotate. When the electric cylinder push rod 22 rotates in one direction, the electric cylinder push rod 22 can be extended. Since the second flange 1032 has been disassembled from the second connecting pipe 101, when the electric cylinder push rod 22 drives the first fixing ring 3 toward Figure 6 During the movement to the left, the first fixing ring 3 can drive the second fixing ring 4 to move, and the movement of the second fixing ring 4 drives the second flange 1032 to move toward the left, that is, drives the second flange 1032 to separate from the second pipe flange 1011 of the second connecting pipe 101, thereby increasing the removal space for removing the bellows 103.

[0053] S4: Disassemble the other connecting flange and the corresponding connecting pipe; that is, after completing the above steps, disassemble the first flange 1031 of the bellows 103 and the first pipe flange 1021, so as to disassemble the bellows 103 and the first connecting pipe 102 and the second connecting pipe 101. Under normal circumstances, after the disassembly is completed, due to the influence of the larger rebound force of the bellows 103, the bellows 103 is still pressed between the adjacent first connecting pipe 102 and the second connecting pipe 101, and when removing the bellows 103, the bellows 103 is difficult to remove due to its elasticity, and it is difficult to completely separate it from the first connecting pipe 102 and the second connecting pipe 101. After the first flange 1031 and the first pipe flange 1021 are disassembled, it is equivalent to that the disassembly tool and the bellows 103 form a rigid whole, and the spacing of the bellows 103 remains unchanged, so the bellows 103 can be removed better and more conveniently.

[0054] S5: Move the bellows 103 and the tool frame 1 in a direction away from the compression direction of the bellows 103, and remove the tool frame 1 and the bellows 103. Figure 6 In the process, first, after the second flange 1032 and the second pipe flange 1011 are disassembled, the bellows 103 is moved toward the left side. When the first flange 1031 and the first pipe flange 1021 are disassembled, the bellows 103 and the disassembly tooling can be moved toward the right side together, so that the entire tooling frame 1 remains axially separated from the first connecting pipe 102. At this time, the bellows 103 and the disassembly tooling can be transported to other safe locations more quickly and efficiently.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0056] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A disassembly tool for a corrugated pipe, characterized in that: The bellows is suitable for connecting between two connecting pipes, and both ends of the bellows are provided with connecting flanges correspondingly connected to the two connecting pipes respectively; A tooling frame, the tooling frame can be movably mounted outside the corrugated pipe; A driving member is connected to one of the two connecting flanges and is suitable for pushing the tooling frame to drive the other connecting flange to be separated from the corresponding connecting pipe.

2. The disassembly tool for the corrugated pipe according to claim 1, characterized in that: The driving member includes an electric cylinder body, an electric cylinder push rod and a motor, and the connecting flange includes a first flange and a second flange; The motor drives the electric cylinder push rod to extend and retract relative to the electric cylinder body. The electric cylinder body is detachably connected to the first flange and the electric cylinder push rod is movable relative to the first flange. The electric cylinder push rod is detachably connected to the tooling frame. The electric cylinder push rod is suitable for driving the tooling frame to move axially and drive the second flange to separate from the corresponding connecting pipe when extending.

3. The disassembly tool for the corrugated pipe according to claim 2, characterized in that: The output shaft of the motor is arranged in parallel with the electric cylinder body and the electric cylinder push rod.

4. The disassembly tool for the corrugated pipe according to claim 2, characterized in that: The tooling frame comprises a first fixing ring, a second fixing ring and a connecting structure; The first fixing ring and the second fixing ring are distributed along the axial direction of the corrugated tube and are connected by the connecting structure. The electric cylinder body is detachably connected to the first flange and the electric cylinder push rod is detachably connected to the first fixing ring. The second fixing ring is detachably connected to the second flange. The electric cylinder push rod drives the tooling frame and the corrugated tube to be squeezed in a direction close to the first flange, so that the second flange is separated from the corresponding connecting pipe.

5. The disassembly tool for the corrugated pipe according to claim 4, characterized in that: The connecting structure is a screw assembly, which includes a screw and a nut. The screw passes through the first fixing ring and the second fixing ring, and is locked by the nuts on both sides of the first fixing ring and both sides of the second fixing ring.

6. The corrugated pipe disassembly tool according to claim 5, characterized in that: The number of the screw assemblies is multiple, and the multiple groups of the screw assemblies are distributed at intervals along the circumference of the connecting pipe and the corrugated pipe.

7. The corrugated pipe disassembly tool according to claim 5, characterized in that: The driving member is located between two groups of the lead screw assemblies which are adjacent in the circumferential direction of the bellows.

8. The corrugated pipe disassembly tool according to claim 4, characterized in that: The first flange and the second flange are both provided with a radially extending connecting seat, the second fixing ring is detachably connected to the connecting seat of the second flange along the axial direction of the bellows, and the electric cylinder body is detachably connected to the connecting seat of the first flange along the axial direction of the bellows.

9. The corrugated pipe disassembly tool according to claim 2, characterized in that: The number of the driving members includes multiple groups, and the multiple groups of driving members are distributed at intervals along the circumference of the bellows.

10. A method for disassembling a corrugated pipe, characterized in that: The disassembly tool for the corrugated pipe according to any one of claims 1 to 9 further comprises: Install the tooling frame and the driving member; Disassembling one of the connecting flanges and the corresponding connecting pipe; Driving the driving member so that the driving member drives the disassembled connecting flange away from the corresponding connecting pipe; Disassembling the other connecting flange and the corresponding connecting pipe; The bellows and the tooling frame are moved in a compression direction away from the bellows, and the tooling frame and the bellows are removed.

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