Truss pipeline lifting device

Abstract

The utility model relates to the technical field of pipeline equipment, in particular to a truss pipeline lifting device. Comprising a lifting mechanism, a supporting seat is arranged at the bottom of the lifting mechanism, a lifting support is arranged at the top of the lifting mechanism, the lifting support comprises a cross beam, a connecting rod and a fork rod, the cross beam is horizontally arranged at the top of the lifting mechanism, the length of the cross beam is larger than the width of a truss in lap joint with a pipeline, and the cross beam is arranged in the direction of the pipeline. The two ends of the pipeline are vertically and downwards connected with connecting rods respectively, the bottom of each connecting rod is connected with a fork rod, and the top of each fork rod abuts against the lower portion of the pipeline. The lifting device has the advantages that two ends of a pipeline in lap joint with the truss are uniformly stressed in the lifting process due to two-position force application, and the problem of non-uniform stress caused by a common pipeline single-side lifting device is solved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline equipment technology, and in particular to a truss pipeline lifting device. Background Technology

[0002] Pipelines are important means of transporting products such as oil and gas. In actual pipeline installation, especially when pipelines cross river trusses, multiple pipelines run parallel or intersect each other. Once truss overlap occurs, it will have a fatal impact on the cathodic protection system of the pipeline. This will lead to varying degrees of corrosion in the pipeline during use, which will not only cause economic losses in production, but also pose safety hazards in production.

[0003] The applicant developed a universal pipeline electrical insulation device to solve the corrosion problem of pipelines and applied for a patent on December 21, 2018, with the authorization announcement number: CN209210928U. The device uses a rope hole set at the connection point of the cross-sectional diameter of the insulating rod / pipe. A steel wire rope passes through the rope hole to connect several nylon rods together in series. The connected nylon rods are close to the outer wall of the pipeline they are protecting and are wrapped around it. The steel wire rope at the end of the nylon rod is tied and fixed. The material of the insulating rod is used to isolate the current, thereby achieving the function of electrical insulation of the pipeline.

[0004] In practical work, when using the above-mentioned pipeline electrical insulation device, the pipeline needs to be lifted from the truss, and then the insulation device is wrapped around the outer wall of the pipeline. However, long pipelines are not easy to lift due to their own weight, and often require the use of a lifting device. How to provide a pipeline lifting device to solve the pipeline corrosion problem during the pipeline and truss connection is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a truss pipe lifting device.

[0006] The technical solution of this utility model is: a truss pipe lifting device, including a lifting mechanism, a support base is provided at the bottom of the lifting mechanism, and a lifting bracket is provided at the top of the lifting mechanism. The lifting bracket includes a crossbeam, a connecting rod and a fork rod. The crossbeam is horizontally arranged at the top of the lifting mechanism. The length of the crossbeam is greater than the width of the truss that overlaps with the pipe. The crossbeam is arranged along the pipe direction, and a connecting rod is vertically connected to each of its two ends. A fork rod is connected to the bottom of each connecting rod, and the top of the fork rod abuts against the bottom of the pipe.

[0007] Furthermore, the lifting mechanism includes, but is not limited to, jacks or lifting screws.

[0008] Furthermore, to allow for flexible placement of the lifting mechanism and facilitate its fixation during use, a fixing baffle is provided on the support base. The fixing baffle forms a cavity that can accommodate the bottom of the lifting mechanism. A limiting plate is provided at the bottom of the crossbeam, and the limiting plate forms a cavity that can accommodate the top of the lifting mechanism.

[0009] Furthermore, to enhance the load-bearing capacity of the lifting device, the fork is arranged horizontally, and a reinforcing rib is provided at the connection between the fork and the connecting rod. The side of the reinforcing rib closest to the pipe is arranged in an arc shape.

[0010] Furthermore, to facilitate the lifting of the pipeline, the contact surface between the fork and the pipeline is arc-shaped.

[0011] Furthermore, to improve the stability of the lifting mechanism during use, several buckles are provided on the support base. The buckles are fastened after bypassing the truss that overlaps with the pipe, so that the support base is fixed on the truss.

[0012] The beneficial effects of this utility model are as follows: By setting up a lifting mechanism and a lifting support, the lifting force of the lifting mechanism is applied to the pipeline through the lifting support, thereby lifting the pipeline and facilitating the anti-corrosion work of the pipeline; In particular, the crossbeam and the pipeline are parallel and the length of the crossbeam is greater than the width of the truss, so that two forks span the two sides of the truss. When the lifting mechanism lifts the pipeline, the two forks act as two force application points, which can lift the pipeline above both ends of the truss respectively, so that the force is evenly distributed during the lifting process of the pipeline, which facilitates the smooth winding of the insulating material onto the pipeline and overcomes the problem of uneven force caused by the common single-sided lifting device of the pipeline.

[0013] By setting a fixed baffle on the support base and a limiting plate at the bottom of the crossbeam, the lifting mechanism can be accommodated. This facilitates the fixing of the lifting mechanism during pipeline lifting operations. After the pipeline is lifted, the lifting mechanism can be removed from the lifting bracket. The detachable lifting mechanism makes it easier to move and maintain during operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the truss pipe lifting device of this utility model;

[0015] Figure 2 This is a schematic diagram of the left side of the truss pipe lifting device of this utility model;

[0016] In the picture:

[0017] 1. Support base 101, fixed baffle 102, buckle

[0018] 2. Jack; 3. Crossbeam; 301. Limit plate

[0019] 4. Connecting rod 5, fork rod 501, reinforcing rib

[0020] 6. Truss 7. Pipes Detailed Implementation

[0021] Example 1

[0022] A truss pipe lifting device includes a lifting mechanism and a lifting support movably connected to the lifting mechanism. In this embodiment, the lifting mechanism is a jack 2. A support seat 1 is provided at the bottom of the jack 2. The support seat 1 is arranged along the direction of the truss 6. A fixed baffle 101 is provided on the support seat 1. The fixed baffle 101 forms a cylindrical cavity that can accommodate the bottom of the jack 2. The size of the cavity of the fixed baffle 101 is just enough to accommodate the bottom of the jack 2. Two to three buckles 102 are provided on the support seat 1. The buckles 102 pass over the truss 6 that overlaps with the pipe 7 from above the support seat 1 and then lock in place, firmly fixing the support seat 1 to the truss 6.

[0023] A lifting bracket is installed on the top of the jack 2. The lifting bracket includes a crossbeam 3, a connecting rod 4, and a fork 5. The crossbeam 3 is horizontally installed on the top of the jack 2. A limiting plate 301 is provided at the bottom of the crossbeam 3. The limiting plate 301 forms a cavity that can accommodate the top of the jack 2. The size of the cavity of the limiting plate 301 is just enough to accommodate the top of the jack 2.

[0024] The crossbeam 3 is set along the direction of the pipe, and its length is greater than the width of the truss 6 that overlaps with the pipe 7. The two ends of the crossbeam 3 are connected to a connecting rod 4 vertically downwards. The bottom of each connecting rod 4 is connected to a fork 5. The fork 5 is set in the horizontal direction, and the upper surface of each fork 5 abuts against the bottom of the pipe 7. A reinforcing rib 501 is also provided at the connection between the fork 5 and the connecting rod 4 to ensure that the fork 5 can withstand the upward tension.

[0025] In actual operation, it is common for multiple pipelines to be laid in parallel. During the pipeline laying process, overlapping with the truss is unavoidable. In order to protect the anti-corrosion system of pipeline 7, the detachable truss pipeline lifting device is placed at the position where pipeline 7 and truss 6 need to overlap. The support seat 1 is placed on the truss 6 and fixed to the truss 6 by the buckle 102. The bottom of the jack 2 is placed in the cavity surrounded by the fixed baffle 101. The crossbeam 3 is placed on the top of the jack 2, and the cavity surrounded by the limiting plate 301 is aligned with the top of the jack 2. The top surfaces of the two forks 5 are placed under the pipeline 7 that needs to be lifted. The jack 2 is started to lift the pipeline 7 that overlaps with the truss 6. An insulating device made of insulating rods is wrapped around the pipeline 7 through the gap between the pipeline 7 and the truss 6 to insulate the pipeline 7 from the truss 6.

[0026] After the insulation work is completed, close the jack 2. The crossbeam 3 and the connected fork 5 and the lowering pipe 7 will also fall down. Then the jack 2 can be removed from the lifting bracket for easy storage and equipment maintenance.

[0027] Example 2

[0028] In the pipeline laying process of Example 1, in order to lift the pipeline 7 from the truss 6, when using the truss pipeline lifting device, in order to increase the contact area between the lifting device and the pipeline 7 and ensure stability during the lifting process, the upper surface of the fork 5 that contacts the pipeline 7 can be set into an arc shape. The arc-shaped fork 5 hooks the bottom of the pipeline 7, and the lifting work of the pipeline 7 is completed by activating the jack 2.

[0029] It is worth noting that the lifting mechanism can be used not only with jacks but also with lifting screws. Therefore, the above description of one embodiment of the present invention is only a preferred embodiment and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A truss pipe lifting device, characterized in that: The device includes a lifting mechanism, with a support base at the bottom and a lifting bracket at the top. The lifting bracket includes a crossbeam, a connecting rod, and a fork. The crossbeam is horizontally positioned at the top of the lifting mechanism, and its length is greater than the width of the truss that overlaps with the pipe. The crossbeam is positioned along the pipe direction, and its two ends are vertically connected to a connecting rod. The bottom of each connecting rod is connected to a fork, and the top of the fork abuts against the bottom of the pipe.

2. The truss pipe lifting device according to claim 1, characterized in that: The lifting mechanism includes a jack or a lifting screw.

3. The truss pipe lifting device according to claim 1, characterized in that: A fixed baffle is provided on the support base, and the fixed baffle forms a cavity that can accommodate the bottom of the lifting mechanism; a limiting plate is provided at the bottom of the crossbeam, and the limiting plate forms a cavity that can accommodate the top of the lifting mechanism.

4. The truss pipe lifting device according to claim 1, characterized in that: The fork is arranged horizontally, and a reinforcing rib is provided at the connection between the fork and the connecting rod. The side of the reinforcing rib closest to the pipe is arranged in an arc shape.

5. The truss pipe lifting device according to claim 4, characterized in that: The contact surface between the fork and the pipe is arc-shaped.

6. The truss pipe lifting device according to claim 1, characterized in that: Several buckles are provided on the support base. The buckles are fastened after passing around the truss that overlaps with the pipe, so that the support base is fixed on the truss.

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