Frame body tool for hoisting pipeline in groove

Abstract

The utility model relates to the technical field of water resource allocation engineering, and provides a frame body tool for hoisting a pipeline in a groove, which is simple to manufacture, and greatly reduces the risk of operation near a high-voltage cable and ensures the safety of construction by adopting a simple hoisting frame body in a high-voltage cable section for construction. Firstly, after a 260t crawler crane is adopted to place the PCCP into a groove, a frame body is pushed to the position above the PCCP, and the PCCP is slowly hoisted through four 30t electric hoists on a cross beam of the frame body. After the PCCP is hoisted, the frame body and the PCCP are pushed to be slowly close to a socket or a spigot of the PCCP which is in place for hoisting, after the PCCP is in place, the axis and the elevation deviation of the PCCP are adjusted through the electric hoist till the axis of the PCCP is centered and aligned, and the construction efficiency is improved. The manufacturing process is simple, the structure is stable, installation is convenient, and construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of water resource allocation engineering technology, and in particular to a frame fixture for hoisting pipelines in a trench. Background Technology

[0002] In modern infrastructure construction, especially in projects involving large-diameter pipelines, pipeline installation is a critical task. This project involves 2.4-meter diameter PCCP pipelines, each 6 meters long and weighing 26 tons, with a total construction length of 1.808 kilometers. Typically, crawler cranes are used for pipeline hoisting. However, when passing through high-voltage cable sections, the limited working space required for crawler cranes makes it impossible to guarantee a safe distance, thus restricting their use. Therefore, an alternative solution is needed for pipeline hoisting in these areas to maintain construction safety. Based on this, this invention proposes a scaffolding fixture for hoisting pipelines in trenches, using a simple hoisting frame for construction in high-voltage cable sections to maintain the safety of pipeline hoisting. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a frame tooling for hoisting pipelines in trenches. A simple hoisting frame is used for construction of high-voltage cable sections to maintain the safety of pipeline hoisting.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A frame fixture for hoisting pipes in a trench includes: a frame, several traveling load-bearing steel wheel components located at the bottom of the frame, a traveling foundation, and several hoisting mechanisms; the frame includes: several main beams, several crossbeams, and several legs; the several main beams and several crossbeams are connected to form a rectangular frame structure; the several legs are respectively fixedly connected to the bottom sides of the rectangular frame structure; each leg has a corresponding traveling load-bearing steel wheel component at its bottom; the several hoisting mechanisms are located at the bottom of the crossbeams; the traveling foundation is located between the traveling load-bearing steel wheel components and the sand cushion layer.

[0006] Preferably, the traveling load-bearing steel wheel component includes: a rail wheel fixing seat fixedly connected to the outrigger, an axle fixedly connected to the rail wheel fixing seat, and a rail wheel rotatably connected to the axle; the rail wheel fixing seat is an inverted U-shaped seat, and the rail wheel is rotatably connected to the bottom of the rail wheel fixing seat through the axle; the traveling foundation includes: a foundation steel plate provided on the surface of the sand cushion layer, and a lifting rail fixed to the top of the foundation steel plate.

[0007] Preferably, the walking foundation is divided into two groups, with one group corresponding to all the walking load-bearing steel wheel components on one side of the frame.

[0008] Preferably, a plurality of rail pressure plates are provided between the base steel plate and the lifting rail, with one end of the rail pressure plate being pressed against the rail pressure plate and the other end being fixedly connected to the base steel plate; a certain gap is provided between the plurality of rail pressure plates.

[0009] Preferably, the frame includes: two main beams, four crossbeams, and four legs; the two main beams and two crossbeams form a rectangular frame structure, and two crossbeams are connected in the middle of the rectangular frame structure; the four legs are fixedly connected to the bottom of the main beams of the rectangular frame structure, and the four legs are located at the four corners of the rectangular frame structure; each leg has a corresponding walking load-bearing steel wheel component at its bottom; there are four hoisting mechanisms, which are respectively located at the bottom of the two crossbeams in the middle of the rectangular frame structure, and two hoisting mechanisms are correspondingly located on each crossbeam, with the bottoms of the two legs connected to the same main beam connected by connecting steel bodies.

[0010] Preferably, the frame is provided with reinforcing beams at the top, front, and rear. Each reinforcing beam consists of two intersecting beams, which are welded together at their intersection by a first welded steel plate. The beams are welded to the top of the frame by a second welded steel plate and to the front and rear sides of the frame by a third welded steel plate. The beams are also welded to the top crossbeam and main beam of the frame by a second welded steel plate, and to the main beam and support legs by a third welded steel plate.

[0011] Preferably, the hoisting mechanism is an electric hoist.

[0012] This embodiment provides a frame fixture for suspending pipes in a trench, which has the following advantages:

[0013] This invention significantly reduces the risks of working near high-voltage cables and ensures construction safety by using a simple hoisting frame in high-voltage cable sections. First, a 260t crawler crane is used to place the PCCP pipe into the trench. Then, the frame is pushed above the pipe, and four 30t electric hoists on the frame's crossbeams slowly lift the PCCP pipe. After the PCCP pipe is lifted, the frame and PCCP pipe are slowly moved closer to the positioned PCCP pipe socket or spigot for installation. Once the PCCP pipe is in place, the electric hoists are used to adjust the PCCP pipe's axis and elevation deviation until the PCCP pipe is aligned and corrected, improving construction efficiency. The manufacturing process is simple, the structure is stable, and installation is convenient, thus improving construction efficiency. Attached Figure Description

[0014] Figure 1 This is a top view of the structure of this utility model.

[0015] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure at point AA.

[0016] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure at point BB.

[0017] Figure 4 for Figure 1 A magnified view of a portion of point A in the middle.

[0018] Figure 5 for Figure 1 A magnified view of a portion of point B in the middle.

[0019] Figure 6 for Figure 2 A magnified view of a portion of point C.

[0020] Figure 7 for Figure 2 A magnified view of a portion of point D.

[0021] Figure 8 for Figure 7 A schematic diagram of the cross-sectional structure at point CC.

[0022] Figure 9 The back of the channel steel is welded.

[0023] Figure 10 for Figure 9 A schematic diagram of the cross-sectional structure at point DD.

[0024] In the attached diagram: 1. Main beam; 2. Crossbeam; 3. Support leg; 4. Reinforcing beam; 41. Beam body; 42. First welded steel plate; 43. Second welded steel plate; 44. Third welded steel plate; 5. Electric hoist; 6. Traveling load-bearing steel wheel component; 61. Rail wheel fixing seat; 62. Axle; 63. Rail wheel; 7. Traveling foundation; 71. Foundation steel plate; 72. Lifting rail; 73. Rail pressure plate; 74. Fixing bolt; 8. Sand cushion layer; 9. PCCP pipeline. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1

[0028] Reference Figures 1 to 3 A frame fixture for hoisting pipes in a trench includes: a frame, several traveling load-bearing steel wheel components 6 located at the bottom of the frame, a traveling foundation 7, and several hoisting mechanisms; the frame includes: several main beams 1, several crossbeams 2, and several support legs 3; the main beams 1 and crossbeams 2 are connected to form a rectangular frame structure; the support legs 3 are respectively fixedly connected to both sides of the bottom of the rectangular frame structure; each support leg 3 has a corresponding traveling load-bearing steel wheel component 6 at its bottom; several hoisting mechanisms are located at the bottom of the crossbeams 2; the traveling foundation 7 is located between the traveling load-bearing steel wheel components 6 and the sand cushion layer 8. Preferably, in this embodiment, the hoisting mechanism is an electric hoist 5. The electric hoist 5 is a 30t electric hoist 5.

[0029] Please refer to Figure 7 and Figure 8 Preferably, in this embodiment, the traveling load-bearing steel wheel component 6 includes: a rail wheel fixing seat 61 fixedly connected to the outrigger 3, an axle 62 fixedly connected to the rail wheel fixing seat 61, and a rail wheel 63 rotatably connected to the axle 62; the rail wheel fixing seat 61 is an inverted U-shaped seat, and the rail wheel 63 is rotatably connected to the bottom of the rail wheel fixing seat 61 through the axle 62; the traveling foundation 7 includes: a foundation steel plate 71 disposed on the surface of the sand cushion layer 8, and a lifting rail 72 fixed to the top of the foundation steel plate 71.

[0030] Please refer to Figure 3 As a preferred embodiment, the walking foundation 7 is divided into two groups in this embodiment. One group of walking foundation 7 corresponds to all the walking load-bearing steel wheel components 6 on one side of the frame. In this embodiment, the foundation steel plate 71 is 25m long, 50cm wide, and 1.6cm thick. The lifting rail 72 adopts P50 heavy steel rail. Each lifting rail 72 is 25m long, and the wheelbase between the two rails is 3.8m. Parallelism must be ensured during installation to ensure the flatness and stability of the foundation.

[0031] Please refer to Figure 7 Preferably, in this embodiment, a plurality of rail pressure plates 73 are provided between the base steel plate 71 and the lifting rail 72. One end of the rail pressure plate 73 is pressed against the base steel plate 71, and the other end is fixedly connected to the base steel plate 71. The base steel plate 71 and the rail pressure plate 73 are connected by fixing bolts 74. A certain gap is provided between the plurality of rail pressure plates 73. Before the lifting rail 72 is installed, holes should be made on both sides of the installation axis of the lifting rail 72 on the base steel plate 71. The size of the holes is determined according to the hole diameter of the rail pressure plate 73. A double row of rail pressure plates 73 is arranged at a spacing of 1m. When fixing, the lifting rail 72 should be placed on the base steel pad, the rail should be adjusted to the correct axis position, and then the rail pressure plates 73 should be tightened.

[0032] Example 2

[0033] Based on Example 1, please refer to Figure 1-3 Preferably, in this embodiment, the frame includes: two main beams 1, four crossbeams 2, and four support legs 3; the two main beams 1 and the two crossbeams 2 form a rectangular frame structure, with two crossbeams 2 connected in the middle of the rectangular frame structure; the four support legs 3 are fixedly connected to the bottom of the main beams 1 of the rectangular frame structure, and are located at the four corners of the rectangular frame structure; each support leg 3 has a corresponding walking load-bearing steel wheel component 6 at its bottom; there are four hoisting mechanisms, each located at the bottom of the two crossbeams 2 in the middle of the rectangular frame structure, with two hoisting mechanisms corresponding to each crossbeam 2, and the two legs connected to the same main beam 1 are connected by connecting steel bodies. In this embodiment, preferably, the four support legs 3 are made of double-supported 22b channel steel, the support legs 3 are welded to the top main beam 1, the main beam 1 is made of double-supported 22b channel steel, and the crossbeams 2 are made of double-supported 20b channel steel, such as... Figure 9 and Figure 10 , Figure 9 The middle section consists of channel steel on the left and right sides, and a steel plate in the middle. All channel steels are welded back to back, with a 1cm thick steel plate sandwiched in the middle. The width of the steel plate is consistent with the width of the back welding of the channel steel. When welding the support rods in each part, steel plate connecting plates must be used for full welding reinforcement.

[0034] Please refer to Figure 1-7 Preferably, in this embodiment, reinforcing beams 4 are provided on the top, front, and rear sides of the frame for stability reinforcement. The reinforcing beams 4 are two intersecting beams 41. The beams 41 are made of double-supported 16b channel steel, with the channel steel welded back to back and a 1cm thick steel plate sandwiched in the middle. The width of the steel plate is consistent with the width of the back-welded channel steel. The intersection of the intersecting beams 41 is welded to the first welded steel plate 42. The beams 41 are welded to the top of the frame through the second welded steel plate 43, and to the front and rear sides of the frame through the third welded steel plate 44. The beams 41 are welded to the top crossbeam 2 and main beam 1 of the frame through the second welded steel plate 43. The beams 41 are welded to the main beam 1 and the support leg 3 through the third welded steel plate 44.

[0035] Working principle: First, a 260t crawler crane is used to place the PCCP pipe 9 into the trench. Then, the frame is pushed above the pipe, and the PCCP pipe 9 is slowly lifted using four 30t electric hoists on the frame's crossbeam 2. After the PCCP pipe 9 is lifted, the frame and the PCCP pipe 9 are slowly pushed towards the socket or spigot of the positioned PCCP pipe 9 for installation. Once the PCCP pipe 9 is in place, the electric hoist 5 is used to adjust the axis and elevation deviation of the PCCP pipe 9 until the axis is aligned and corrected. During installation, a single PCCP pipe 9 is lifted and installed first. After the installation of a single PCCP pipe 9 on one side is completed, the frame and the traveling foundation 7 on one side need to be dismantled, and the frame and traveling foundation 7 are then lifted and transported to the other side for installation.

[0036] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Substitutions may include replacements for some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the scope of protection of this utility model.

Claims

1. A frame fixture for hoisting pipes in a trench, characterized in that, include: The frame includes a frame body, several traveling load-bearing steel wheel components (6) located at the bottom of the frame body, a traveling foundation (7), and several hoisting mechanisms; the frame body includes several main beams (1), several crossbeams (2), and several legs (3); the several main beams (1) and several crossbeams (2) are connected to form a rectangular frame structure; the several legs (3) are fixedly connected to the bottom sides of the rectangular frame structure respectively; each leg (3) has a corresponding traveling load-bearing steel wheel component (6) at its bottom; the several hoisting mechanisms are located at the bottom of the crossbeams (2); the traveling foundation (7) is located between the traveling load-bearing steel wheel component (6) and the sand cushion layer (8).

2. The frame fixture for hoisting pipes in a trench according to claim 1, characterized in that, The traveling load-bearing steel wheel component (6) includes: a rail wheel fixing seat (61) fixedly connected to the outrigger (3), a shaft (62) fixedly connected to the rail wheel fixing seat (61), and a rail wheel (63) rotatably connected to the shaft (62); the rail wheel fixing seat (61) is an inverted U-shaped seat, and the rail wheel (63) is rotatably connected to the bottom of the rail wheel fixing seat (61) through the shaft (62); the traveling foundation (7) includes: a foundation steel plate (71) provided on the surface of the sand cushion layer (8), and a lifting rail (72) fixed to the top of the foundation steel plate (71).

3. The frame fixture for hoisting pipes in a trench according to claim 1 or 2, characterized in that, The walking foundation (7) is divided into two groups, with one group of walking foundations (7) corresponding to all the walking load-bearing steel wheel components (6) on one side of the frame.

4. The frame fixture for hoisting pipes in a trench according to claim 2, characterized in that, Several rail pressure plates (73) are provided between the base steel plate (71) and the lifting rail (72). One end of the rail pressure plate (73) is pressed against the rail pressure plate (73), and the other end is fixedly connected to the base steel plate (71). A certain gap is provided between the several rail pressure plates (73).

5. The frame fixture for hoisting pipes in a trench according to claim 1, characterized in that, The frame includes: two main beams (1), four crossbeams (2), and four legs (3); the two main beams (1) and the two crossbeams (2) form a rectangular frame structure, and the rectangular frame structure is also connected to two crossbeams (2) in the middle; the four legs (3) are fixedly connected to the bottom of the main beams (1) of the rectangular frame structure, and the four legs (3) are located at the four corners of the rectangular frame structure; each leg (3) has a corresponding walking load-bearing steel wheel component (6) at its bottom; the plurality of hoisting mechanisms are four, and the four hoisting mechanisms are respectively located at the bottom of the two crossbeams (2) in the middle of the rectangular frame structure, and two hoisting mechanisms are correspondingly provided on one crossbeam (2), and the bottom of the two legs connected to the same main beam (1) are connected by a connecting steel body.

6. The frame fixture for hoisting pipes in a trench according to claim 1 or 5, characterized in that, The frame is provided with reinforcing beams (4) at the top, front and rear. The reinforcing beams (4) are two intersecting beams (41). The intersecting beams (41) are welded to the top of the frame by a first welded steel plate (42). The beams (41) are welded to the top of the frame by a second welded steel plate (43) and to the front and rear sides of the frame by a third welded steel plate (44). The beams (41) are welded to the top crossbeam (2) and main beam (1) of the frame by a second welded steel plate (43). The beams (41) are welded to the main beam (1) and support legs (3) by a third welded steel plate (44).

7. A frame fixture for hoisting pipes in a trench according to claim 1 or 5, characterized in that, The hoisting mechanism is an electric hoist (5).

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