A large-diameter PCCP pipeline rapid lifting device

Abstract

The present invention discloses a large-diameter PCCP pipeline rapid lifting device, comprising: a lifting frame connected to a crane, wherein a mounting plate is fixedly connected to the bottom end of the lifting frame, a hydraulic rod is fixedly connected to one side of the mounting plate, a connecting piece 1 and a connecting piece 2 are arranged on the lifting frame, the connecting piece 1 and the connecting piece 2 are rotationally symmetrically distributed on the lifting frame, a push rod 1 is fixedly arranged on the connecting piece 1, a push plate is fixedly connected to the outer side of the push rod 1, a limit plate is arranged on the side end of the push plate, and the limit plate is fixedly connected to the push rod 1; in the present invention, the triangular design of the push plate and the I-shaped structure of the fixed clamping plate enable the push plate to push the fixed clamping plate to move after being inserted into the insertion tube, thereby ensuring that the fixed clamping plate can be accurately moved and completely abutted against the inner wall of the pipeline under the drive of the hydraulic rod, and this cooperation ensures the accurate positioning and firm fixation of the pipeline during the lifting process, thereby avoiding unnecessary movement or imbalance of the pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline hoisting, in particular to a large-diameter PCCP pipeline rapid hoisting device. Background Art

[0002] PCCP pipe refers to prestressed concrete cylindrical pipe, which is mainly used in water and sewage pipe applications. It consists of a concrete core, a steel cylinder and steel wires or steel strands wrapped around the steel cylinder to provide internal prestressing. PCCP pipe is known for its strength, durability and high-pressure resistance, and is suitable for various infrastructure projects. Lifting devices are equipment and tools used to move large pipes or other heavy components. When installing large-diameter PCCP pipes, lifting devices are usually used to lift and move the pipe to ensure that it is accurately installed in the predetermined position.

[0003] A Chinese patent with publication number CN220811575U discloses a large-caliber PCCP pipe rapid lifting device, the structure of which includes an I-beam, the upper surface of which is fixedly connected with a lifting lug, the left and right ends of which are fixedly connected with a cap, the two caps are provided with a first mounting hole on the side away from each other, the inner wall of each of the first mounting holes is rotatably connected with a first connecting piece, the outer surface of each of the first connecting pieces is sleeved with a wire rope, and two PCCP pipe hooks are provided under the I-beam. This device can be connected to a crane through the lifting lug, and the PCCP pipe hook can be directly hooked on the inner wall of the upper part of the PCCP pipe for lifting, which greatly improves the construction efficiency. Since the contact part between the hook and the pipe wall is designed to be slender, the force-bearing area is increased, and the damage to the pipe during the lifting process is reduced, which solves the problem that the lifting cloth is passed through the bottom of the left and right sides of the pipe, resulting in cumbersome operation and low lifting efficiency during lifting.

[0004] However, the above-mentioned prior art has the following shortcomings: when hoisting large-diameter PCCP pipes, since large-diameter PCCP pipes are large in diameter and heavy in weight, they can only be supported and fixed by two sets of PCCP pipe hooks during hoisting, which can easily cause the pipes to tilt during the hoisting process or become unbalanced due to external forces, thereby causing the pipes to fall off, thereby increasing construction risks. Summary of the invention

[0005] The purpose of the present invention is to provide a large-diameter PCCP pipeline rapid lifting device to solve the problem that when lifting a large-diameter PCCP pipeline, the large-diameter PCCP pipeline has a large diameter and is heavy, and only two sets of PCCP pipeline hooks are used to support and fix it during lifting, which may easily cause the pipeline to tilt during the lifting process or become unbalanced during the lifting process due to external force, thereby causing the pipeline to fall off, thereby increasing the construction risk.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a large-diameter PCCP pipeline rapid lifting device, comprising: a lifting frame connected to a crane, wherein the bottom end of the lifting frame is fixedly connected to a mounting plate, one side of the mounting plate is fixedly connected to a hydraulic rod, a connecting piece 1 and a connecting piece 2 are arranged on the lifting frame, the connecting piece 1 and the connecting piece 2 are rotationally symmetrically distributed on the lifting frame, a push rod 1 is fixedly arranged on the connecting piece 1, a push plate is fixedly connected to the outer side of the push rod 1, a limiting plate is arranged on the side end of the push plate, the limiting plate is fixedly connected to the push rod 1, a clamping block is fixedly connected to the side end of the limiting plate, a fixing piece 1 is sleeved on the outer side of the push rod 1, a push rod 2 is rotatably arranged on the connecting piece 2, and a fixing piece 2 is sleeved on the outer side of the push rod 2;

[0007] The push rod 2 is also provided with a push plate, a limit plate and a clamping block;

[0008] The first fixing member includes an insert sleeve plugged into the pipeline, the end face of the insert sleeve is fixedly connected to a baffle abutting against the end face of the pipeline, the outer side of the insert sleeve is clamped with a fixed card, and the fixed card is magnetically connected to the push plate. The second fixing member also includes an insert sleeve, a baffle and a fixed card;

[0009] When the hydraulic rod drives the connecting piece 1 and the connecting piece 2 to move, the fixing piece 1 and the fixing piece 2 are inserted into the two ends of the pipeline, and the baffle plate abuts against the end surface of the pipeline. At this time, the connecting piece 1 and the connecting piece 2 are continued to be driven to move, the push plate is inserted into the insert tube, and the fixed clamping plate is pushed to move outward until the fixed clamping plate abuts against the inner wall of the pipeline.

[0010] As a further solution of the present invention: the connecting member 1 includes a plug plate which is slidably plugged into the hanging frame, one end of the connecting member 1 is fixedly connected to a limit plate, the other end of the connecting member 1 is fixedly connected to a connecting plate, the side end of the connecting plate is fixedly connected to a push rod 1, the connecting member 2 also includes a plug plate, a limit plate and a connecting plate, the push rod 2 passes through the connecting plate in the connecting member 2 and is rotatably connected to the connecting plate.

[0011] As a further solution of the present invention: an insert rod is fixedly connected to one end surface of the push rod, and a guide block is fixedly connected to the outer side of the insert rod.

[0012] As a further solution of the present invention: the two end surfaces of the push rod are fixedly connected with rotating blocks, the end surface of the rotating block is provided with a rotating slot, and the rotating slot is adapted to the guide block.

[0013] As a further solution of the present invention: the other end face of the push rod 2 passes through the connecting plate and is fixedly connected to a locking plate, a plug hole is opened at the side end of the locking plate, the plug hole passes through the locking plate, and a blocking plate is fixedly connected to the side end of the locking plate.

[0014] As a further solution of the present invention: a side end of the connecting plate in the second connecting member is fixedly connected with a connecting platform, a locking pin is slidably inserted on the connecting platform, and the locking pin is adapted to the socket.

[0015] As a further solution of the present invention: a connecting ear is fixedly connected to the top of the hanging frame, a sliding groove is opened at one end of the hanging frame, and a sliding roller is rotatably connected in the sliding groove.

[0016] As a further solution of the present invention: a limiting baffle is fixedly connected inside the hanging frame, and the limiting baffle abuts against the side end of the plug plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The triangular design of the push plate and the I-shaped structure of the fixed card plate in the present invention enable the push plate to push the fixed card plate to move after being inserted into the insert tube, ensuring that the fixed card plate can move accurately and completely abut against the inner wall of the pipeline under the drive of the hydraulic rod. This cooperation ensures the accurate positioning and firm fixation of the pipeline during the hoisting process, avoiding unnecessary movement or imbalance of the pipeline. The I-shaped design of the fixed card plate can effectively fit with the inner wall of the pipeline to prevent accidental movement or loosening during the hoisting process. This safety guarantee makes the construction operation more reliable and efficient;

[0019] 2. In the present invention, the plug rod is plugged and rotated through the rotating slot and the guide block, which ensures that the push rod 2 can rotate 180 degrees under the control of the hydraulic rod, and realizes accurate plugging and positioning when the push rod 1 and the push rod 2 are connected. This cooperation ensures the correct positioning and load-bearing support of the push rod inside the pipeline, and enhances the supporting force and stability of the overall lifting device;

[0020] 3. In the present invention, the position of the push rod 2 is fixed by the locking plate and the locking pin to prevent it from being accidentally disconnected during the pipeline lifting process. The sliding of the locking pin and the insertion of the socket ensure that the push rod 2 can be firmly locked after the rotation is completed. This is especially important for long-term and complex lifting operations, which can reduce accidents and improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the state when the insert tube enters the pipeline in the present invention;

[0023] Figure 3 It is a schematic diagram of the state when the push plate enters the insert cylinder in the present invention;

[0024] Figure 4 It is a front view of the overall structure of the present invention;

[0025] Figure 5 It is a structural schematic diagram of a connecting member 1 in the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of A in the present invention;

[0027] Figure 7 It is a structural schematic diagram of the rotating block in the present invention;

[0028] Figure 8 It is a structural schematic diagram of the locking plate in the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure at B in the present invention;

[0030] Fig.10 It is a structural schematic diagram of a fixing member 1 in the present invention;

[0031] Fig.11 It is a structural cross-sectional view of the insert tube in the present invention;

[0032] Fig.12 It is a structural schematic diagram of the hanging frame in the present invention.

[0033] In the figure: 1. hanging frame; 11. mounting plate; 12. hydraulic rod; 13. connecting ear; 14. sliding roller; 15. limiting baffle; 16. sliding groove; 2. connecting piece 1; 21. plug plate; 22. limit plate; 23. connecting plate; 3. push rod 1; 31. push plate; 32. limit plate; 33. clamping block; 34. plug rod; 35. guide block; 4. fixing piece 1; 41. insert cylinder; 42. baffle; 43. fixing clamping plate; 5. connecting piece 2; 6. push rod 2; 61. locking plate; 62. rotating block; 63. rotating slot; 64. baffle; 65. connecting table; 66. locking pin; 67. socket; 7. fixing piece 2. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0036] Reference Figures 1 to 12 In an embodiment of the present invention, a large-diameter PCCP pipeline rapid lifting device includes: a hanging frame 1 connected to a crane, wherein a mounting plate 11 is fixedly connected to the bottom end of the hanging frame 1, and two groups of mounting plates 11 are provided, which are symmetrically distributed at the bottom end of the hanging frame 1, and a hydraulic rod 12 is fixedly connected between the two groups of mounting plates 11, and the hydraulic rod 12 is provided in four groups, and a connecting piece 2 and a connecting piece 2 5 are provided on the hanging frame 1, and the connecting piece 2 and the connecting piece 2 5 are rotationally symmetrically distributed on the hanging frame 1, and a push rod is fixedly provided on the connecting piece 2 1-3, a push plate 31 is fixedly connected to the outside of the push rod 1-3, the push plate 31 is triangular, and four groups of push plates 31 are arranged, symmetrically distributed on the outside of the push rod 1-3, a limit plate 32 is arranged on the side end of the push plate 31, the limit plate 32 is fixedly connected to the push rod 1-3, a clamping block 33 is fixedly connected to the side end of the limit plate 32, and four groups of the clamping block 33 are arranged, symmetrically distributed on the side end of the limit plate 32, a fixing member 1-4 is sleeved on the outside of the push rod 1-3, a push rod 2-6 is rotatably arranged on the connecting member 2-5, and a fixing member 2-7 is sleeved on the outside of the push rod 2-6;

[0037] The push rod 2 6 is also provided with a push plate 31, a limit plate 32 and a clamping block 33;

[0038] The fixing member 1 4 includes an insert 41 plugged into the pipe, the diameter of the insert 41 is smaller than the diameter of the pipe, the end face of the insert 41 is fixedly connected with a baffle 42 abutting against the end face of the pipe, and a fixed clamping plate 43 is clamped on the outer side of the insert 41, the fixed clamping plate 43 is I-shaped, and the abutting surface with the pipe is an arc surface, and four groups of fixed clamping plates 43 are provided, symmetrically distributed on the outer side of the insert 41, and the fixed clamping plates 43 are magnetically connected to the push plate 31. The fixing member 2 7 also includes an insert 41, a baffle 42 and a fixed clamping plate 43;

[0039] When the hydraulic rod 12 drives the connecting piece 1 2 and the connecting piece 2 5 to move, the fixing piece 1 4 and the fixing piece 2 7 are inserted into the two ends of the pipeline, and the baffle 42 abuts against the end surface of the pipeline. At this time, the connecting piece 1 2 and the connecting piece 2 5 continue to be driven to move. Under the action of the baffle 42, the insert tube 41 does not move, and the push rod continues to move, so that the push plate 31 is inserted into the insert tube 41, and the push fixed clamping plate 43 in the insert tube 41 moves outward until the fixed clamping plate 43 abuts against the inner wall of the pipeline, thereby fixing and supporting the pipeline.

[0040] Reference Figures 5 to 7 , the connecting member 2 includes a plug plate 21 which is slidably plugged into the hanging frame 1, one end of the connecting member 2 is fixedly connected to a limit plate 22, and the other end of the connecting member 2 is fixedly connected to a connecting plate 23. The movable end of the hydraulic rod 12 passes through the mounting plate 11 and is fixedly connected to the connecting plate 23. The side end of the connecting plate 23 is fixedly connected to a push rod 3. The connecting member 25 also includes a plug plate 21, a limit plate 22 and a connecting plate 23. The push rod 26 passes through the connecting plate 23 in the connecting member 25 and is rotatably connected to the connecting plate 23. The movable end of the hydraulic rod 12 pushes the plug plate 21 to move on the hanging frame 1. When it moves to the maximum distance, the limit plates 22 on the connecting member 2 and the connecting member 25 are abutted and no longer move.

[0041] The above solution is adopted: the connector uses a sliding plug-in plug plate 21 and a connecting plate 23, which are moved and fixed by the drive of the hydraulic rod 12, so that the connector can move freely on the hanging frame 1, ensuring that it can be accurately inserted into both ends of the pipeline and remain stable during the pipeline lifting process.

[0042] Reference Figures 5 to 7 The end face of the push rod 1 3 is fixedly connected with an insertion rod 34, and the outer side of the insertion rod 34 is fixedly connected with a guide block 35. The end face of the push rod 2 6 is fixedly connected with a rotating block 62. The end face of the rotating block 62 is provided with a rotating slot 63, and the rotating slot 63 is adapted to the guide block 35. The push rod 1 3 and the push rod 2 6 move toward each other under the action of the hydraulic rod 12 until the insertion rod 34 is inserted into the rotating slot 63, and under the action of the guide block 35, the push rod 2 6 is driven to rotate 180 degrees, and the fixing part 27 on the outer side of the push rod 2 6 is driven to rotate 180 degrees, so that the push rod 1 3 is connected with the push rod 2 6.

[0043] The above scheme is adopted: the insertion rod 34 is plugged and rotated by rotating the guide block 35 in the slot 63, so that the push rod 2 6 can be rotated one hundred and eighty degrees under the control of the hydraulic rod 12. This rotation action can ensure the correct positioning and fixation of the push rod inside the pipeline, so that the push rod 1 3 and the push rod 2 6 are connected, thereby improving the overall supporting force.

[0044] Reference Figures 8 to 9 The other end face of the push rod 2 6 passes through the connecting plate 23 and is fixedly connected with a locking plate 61. A plug hole 67 is provided at the side end of the locking plate 61. The plug hole 67 passes through the locking plate 61. A blocking piece 64 is fixedly connected to the side end of the locking plate 61. A connecting platform 65 is fixedly connected to the side end of the connecting plate 23 in the connecting member 2 5. A locking pin 66 is slidably inserted on the connecting platform 65. The locking pin 66 is adapted to the plug hole 67. When the push rod 2 6 rotates, the blocking piece 64 is driven to rotate, so that the locking pin 66 slides down due to gravity and is inserted into the plug hole 67, thereby locking the push rod 2 6 to prevent the push rod 1 3 from being disconnected from the push rod 2 6.

[0045] The above solution is adopted: the locking plate 61 and the locking pin 66 are designed to fix the position of the push rod 2 6 to prevent it from being accidentally disconnected during the pipeline lifting process. The sliding of the locking pin 66 and the insertion of the socket 67 ensure that the push rod 2 6 can be firmly locked after the rotation is completed. This is particularly important for long-term and complex lifting operations, which can reduce accidents and improve safety.

[0046] Reference Fig.12 A connecting ear 13 is fixedly connected to the top of the hanging frame 1, a sliding groove 16 is opened at one end of the hanging frame 1, four groups of sliding grooves 16 are provided, which are symmetrically distributed at the upper and lower ends of the hanging frame 1, and sliding rollers 14 are rotatably connected in the sliding grooves 16. There are multiple groups of sliding rollers 14, which are evenly distributed in the sliding grooves 16, and each group of sliding rollers 14 is rotatably connected to a group of plug plates 21. A limiting baffle 15 is fixedly connected inside the hanging frame 1, and four groups of limiting baffles 15 are provided, which are symmetrically distributed on both sides of the plug plates 21, and the limiting baffles 15 abut against the side ends of the plug plates 21.

[0047] By adopting the above solution, a sliding roller 14 and a limiting baffle 15 are arranged inside the hanging frame 1, which helps to improve the operational flexibility and safety of the hanging device and ensure stable support during the hanging process.

[0048] The working principle of the present invention is: when in use, the crane is first connected to the hanging frame 1 through the connecting ear 13, and then the hydraulic rod 12 is started to make the connecting piece 1 2 and the connecting piece 2 5 move in the opposite direction until the connecting piece 1 2 and the limit plate 22 on the plug plate 21 of the connecting piece 2 5 abut against each other, and then the fixing piece 1 4 and the fixing piece 2 7 are moved to the two ends of the pipeline by the crane, and then the hydraulic rod 12 is started to drive the connecting piece 1 2 and the connecting piece 2 5 to move, so that the fixing piece 1 4 and the fixing piece 2 7 are inserted into the two ends of the pipeline, and the baffle 42 abuts against the end surface of the pipeline, At this time, the connecting piece 1 2 and the connecting piece 2 5 are continued to be driven to move. Under the action of the baffle 42, the insert tube 41 does not move, and the push rod continues to move, so that the push plate 31 is inserted into the insert tube 41, and the push fixing clamp 43 in the insert tube 41 moves outward until the fixing clamp 43 abuts against the inner wall of the pipe to fix and support the pipe. At the same time, the insert rod 34 at the end face of the push rod 1 3 is inserted into the rotating slot 63 on the rotating block 62 at the end face of the push rod 2 6, and under the action of the guide block 35, the push rod 2 6 is driven to rotate 180 degrees, and the push rod 2 is driven The fixing piece 27 on the outside of the rod 26 rotates 180 to connect the push rod 13 with the push rod 26. When the push rod 26 rotates, the baffle 64 is driven to rotate, so that the locking pin 66 slides down due to gravity and is inserted into the insertion hole 67 to lock the push rod 26 to prevent the push rod 13 from being disconnected from the push rod 26. At this time, the pipeline is moved by the crane. When the movement is completed, the locking pin 66 is manually pulled out, and then the push rod 13 and the push rod 26 are moved in the opposite direction by the hydraulic rod 12. When the insertion rod 34 is pulled out of the rotating slot 63, the guide block 35 is locked. Under the action, the push rod 2 6 and the fixing member 2 7 are driven to rotate and reset, and at the same time, the push plate 31 is pulled out of the insert tube 41, and the support and fixation of the pipe by the fixed clamping plate 43 is released. Because the push plate 31 is triangular and the fixed clamping plate 43 is magnetically connected to the push plate 31, when the push plate 31 is pulled out at any time, the fixed clamping plate 43 will be reinserted into the insert tube 41 under the action of the magnet, and then the push rod 1 3 and the push rod 2 6 continue to move away from the pipe, and the insert tube 41 is pulled out of the pipe under the action of the limit plate 32, the block 33 and the baffle 42;The triangular design of the push plate 31 and the I-shaped structure of the fixed card plate 43 enable the push plate 31 to push the fixed card plate 43 to move after being inserted into the insert tube 41, ensuring that the fixed card plate 43 can move accurately and completely abut against the inner wall of the pipeline under the drive of the hydraulic rod 12. This cooperation ensures the accurate positioning and firm fixation of the pipeline during the lifting process, avoiding unnecessary movement or imbalance of the pipeline. The I-shaped design of the fixed card plate 43 can effectively fit with the inner wall of the pipeline to prevent accidental movement or loosening during the lifting process. This safety guarantee makes the construction operation more reliable and efficient. The insertion rod 34 is plugged and connected by rotating the slot 63 and the guide block 35. Rotation ensures that the push rod 2 6 can rotate 180 degrees under the control of the hydraulic rod 12, and achieves accurate plugging and positioning when the push rod 1 3 and the push rod 2 6 are connected. This cooperation ensures the correct positioning and load-bearing support of the push rod inside the pipeline, and enhances the supporting force and stability of the overall lifting device. The locking plate 61 and the locking pin 66 are used to fix the position of the push rod 2 6 to prevent it from accidentally disconnecting during the pipeline lifting process. The sliding of the locking pin 66 and the insertion of the plug hole 67 ensure that the push rod 2 6 can be firmly locked after the rotation is completed. This is particularly important for long-term and complex lifting operations, which can reduce accidents and improve safety. ;

[0049] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A large-diameter PCCP pipeline rapid lifting device, comprising: A hanging frame (1) connected to a crane, wherein a mounting plate (11) is fixedly connected to the bottom end of the hanging frame (1), and a hydraulic rod (12) is fixedly connected to one side of the mounting plate (11), and characterized in that a connecting member 1 (2) and a connecting member 2 (5) are provided on the hanging frame (1), and the connecting member 1 (2) and the connecting member 2 (5) are rotationally symmetrically distributed on the hanging frame (1), a push rod 1 (3) is fixedly provided on the connecting member 1 (2), a push plate (31) is fixedly connected to the outer side of the push rod 1 (3), a limit plate (32) is provided at the side end of the push plate (31), the limit plate (32) is fixedly connected to the push rod 1 (3), and a clamping block (33) is fixedly connected to the side end of the limit plate (32), a fixing member 1 (4) is sleeved on the outer side of the push rod 1 (3), a push rod 2 (6) is rotatably provided on the connecting member 2 (5), and a fixing member 2 (7) is sleeved on the outer side of the push rod 2 (6); The push rod 2 (6) is also provided with a push plate (31), a limit plate (32) and a clamping block (33); The fixing member 1 (4) comprises an insert sleeve (41) plugged into the pipeline, the end face of the insert sleeve (41) is fixedly connected to a baffle plate (42) abutting against the end face of the pipeline, the outer side of the insert sleeve (41) is clamped with a fixed clamping plate (43), and the fixed clamping plate (43) is magnetically connected to the push plate (31), and the fixing member 2 (7) also comprises an insert sleeve (41), a baffle plate (42) and a fixed clamping plate (43); When the hydraulic rod (12) drives the connecting member 1 (2) and the connecting member 2 (5) to move, the fixing member 1 (4) and the fixing member 2 (7) are inserted into the two ends of the pipeline, and the baffle (42) is brought into contact with the end surface of the pipeline. At this time, the connecting member 1 (2) and the connecting member 2 (5) are further driven to move, so that the push plate (31) is inserted into the insert tube (41), and the fixing clamp (43) is pushed to move outward until the fixing clamp (43) is brought into contact with the inner wall of the pipeline.

2. A large-diameter PCCP pipeline rapid lifting device according to claim 1, characterized in that: The connecting member 1 (2) comprises a plug plate (21) slidably plugged into the hanging frame (1); one end of the connecting member 1 (2) is fixedly connected to a limit plate (22); the other end of the connecting member 1 (2) is fixedly connected to a connecting plate (23); the side end of the connecting plate (23) is fixedly connected to a push rod 1 (3); the connecting member 2 (5) also comprises a plug plate (21), a limit plate (22) and a connecting plate (23); the push rod 2 (6) passes through the connecting plate (23) in the connecting member 2 (5) and is rotatably connected to the connecting plate (23).

3. A large-diameter PCCP pipeline rapid lifting device according to claim 2, characterized in that: An insert rod (34) is fixedly connected to the end surface of the push rod one (3), and a guide block (35) is fixedly connected to the outer side of the insert rod (34).

4. A large-diameter PCCP pipeline rapid lifting device according to claim 3, characterized in that: The second end surface of the push rod (6) is fixedly connected to a rotating block (62), and the end surface of the rotating block (62) is provided with a rotating slot (63), and the rotating slot (63) is adapted to fit the guide block (35).

5. A large-diameter PCCP pipeline rapid lifting device according to claim 4, characterized in that: The other end surface of the second push rod (6) passes through the connecting plate (23) and is fixedly connected to a locking plate (61). A plug hole (67) is provided at a side end of the locking plate (61). The plug hole (67) passes through the locking plate (61). A blocking plate (64) is fixedly connected to a side end of the locking plate (61).

6. A large-diameter PCCP pipeline rapid lifting device according to claim 5, characterized in that: A connecting platform (65) is fixedly connected to the side end of the connecting plate (23) in the second connecting member (5), and a locking pin (66) is slidably inserted on the connecting platform (65), and the locking pin (66) is matched with the insertion hole (67).

7. A large-diameter PCCP pipeline rapid lifting device according to claim 6, characterized in that: A connecting ear (13) is fixedly connected to the top of the hanging frame (1), and a sliding groove (16) is opened at one end of the hanging frame (1). A sliding roller (14) is rotatably connected in the sliding groove (16). A plurality of sliding rollers (14) are arranged and evenly distributed in the sliding groove (16), and each group of sliding rollers (14) is rotatably connected to a group of plug plates (21).

8. A large-diameter PCCP pipeline rapid lifting device according to claim 7, characterized in that: A limiting baffle (15) is fixedly connected inside the hanging frame (1), and the limiting baffle (15) abuts against a side end of the plug plate (21).

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