Rotary support for pipeline welding

Abstract

The utility model discloses a pipeline welding rotating support, and relates to the technical field of water conservancy projects, in particular to a pipeline welding rotating support which comprises a guide pipe, an inner pipe is inserted in the guide pipe, one end of the guide pipe and one end of the inner pipe are fixedly connected with arc-shaped seats, and positive and negative tooth lead screw assemblies are arranged in the arc-shaped seats. When the pipeline welding device is used, two devices are placed in an aligned mode, the inner pipe is pulled out according to the length of a pipeline needing to be welded, and therefore the distance between the two arc-shaped bases is controlled, then a pipeline is placed on each device and aligned, the two pipelines can be welded after being aligned, and after part of a joint is welded, the pipeline is welded. A worker can manually push the pipeline to rotate the pipeline, so that the joint at the bottom is rotated to the upper part, the worker can conveniently carry out subsequent welding operation on the non-welded position, the pipeline is rotationally welded through the equipment, and the situation that welding is difficult to carry out due to the fact that a gap at the bottom is small during installation at the joint of a pipe opening is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy projects, in particular to a pipeline welding rotating support. Background Art

[0002] During the water delivery and water lifting construction of water conservancy projects, welding is used to connect the pipelines. Due to the small gap on the bottom of the pipe connection during the welding construction process, after the operation pit is excavated, support work of the operation pit must be carried out, and there are great safety issues. This leads to low construction efficiency, high construction cost and slow construction progress. Utility Model Content

[0003] The utility model aims to provide a pipeline welding rotating support. By arranging an arc seat, positive and negative threaded screw rod assemblies and a support assembly, the problem that during the welding construction process, the bottom surface gap of the pipe mouth connection part is small, and after the operation pit is excavated, the support work of the operation pit must be carried out, and the safety problem is relatively large; the construction efficiency is low, the construction cost is high, and the construction progress is slow.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions: a pipeline welding rotating support, including a guide tube, an inner tube is inserted into the guide tube, one end of the guide tube and one end of the inner tube are fixedly connected with an arc seat, a positive and negative threaded rod assembly is arranged inside the arc seat, and both ends of the surface of the positive and negative threaded rod assembly are threadedly connected with a support assembly;

[0005] The forward and reverse screw rod assembly includes a movable groove opened on the upper surface of the arc seat, the inner side wall of the movable groove is opened with a circular hole, the inside of the circular hole is fixedly installed with an A bearing, and the arc seat is rotatably connected to the forward and reverse screw rods through the bearing.

[0006] Preferably, the support assembly includes a vertical rod threadedly connected to both ends of the positive and negative threaded rods, a rotation groove is opened at the top of the vertical rod, a fixed pulley is rotatably connected to the interior of the rotation groove through a rotating shaft, and arc plates are fixedly connected to both sides of the vertical rod.

[0007] Preferably, one end of the forward and reverse threaded rod is fixedly connected to a crank seat, and one side of the crank seat is rotatably connected to a crank handle lever via a B bearing.

[0008] Preferably, a sliding groove is provided on the inner bottom wall of the movable groove, and a sliding block is fixedly connected to the lower surface of the vertical rod.

[0009] Preferably, the sliding block is slidably connected to the inside of the sliding groove, and the lower surface of the arc plate is tightly abutted against the upper surface of the arc seat.

[0010] Preferably, both sides of the arc-shaped seat are fixedly connected with support frames.

[0011] The utility model provides a pipeline welding rotating support, which has the following beneficial effects:

[0012] When in use, align and place two of the devices, pull the inner pipe outward according to the length of the pipe to be welded, so as to control the distance between the two arc seats, then place a pipe on each of the two devices and align the pipes. After alignment, the two pipes can be welded. After welding some joints, personnel can manually push the pipe to rotate the pipe, so as to turn the bottom joint upward, which is convenient for personnel to perform subsequent welding operations on the unwelded position. Thus, the pipe is rotated and welded by this equipment, which avoids the difficulty of welding at the pipe mouth joint due to the small bottom gap during installation. At the same time, the operation pit excavation process can be omitted, the operation pit support process can be reduced, and safety can be better guaranteed, and construction efficiency can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic back view of the structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structural disassembly of the arc seat of the utility model;

[0017] Figure 4 It is a schematic diagram of the disassembly of the pole structure of the utility model.

[0018] Indicated in the figure:

[0019] 1. Guide tube; 2. Inner tube; 3. Arc seat; 4. Moving groove; 5. A bearing; 6. Positive and negative threaded screw; 7. Vertical rod; 8. Rotating groove; 9. Fixed pulley; 10. Arc plate; 11. Crank seat; 12. Crank handle; 13. Slide groove; 14. Sliding block; 15. Support frame. DETAILED DESCRIPTION

[0020] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment proposes a pipeline welding rotating support, including a guide tube 1, an inner tube 2 is inserted into the guide tube 1, one end of the guide tube 1 and one end of the inner tube 2 are fixedly connected with an arc seat 3, a positive and negative threaded rod assembly is arranged inside the arc seat 3, and both ends of the surface of the positive and negative threaded rod assembly are threadedly connected with a support assembly, and the inner tube 2 is directly inserted into the guide tube 1. When the pipeline to be welded is long, the personnel can pull one of the arc seats 3 to adjust the distance between the two arc seats 3, and the guide tube 1 and the inner tube 2 play an alignment role to avoid the position offset between the two arc seats 3 and the influence on the contact and rotation of the pipeline;

[0023] The positive and negative threaded rod assembly includes a movable groove 4 opened on the upper surface of the arc seat 3, a circular hole is opened on the inner wall of the movable groove 4, and a bearing A 5 is fixedly installed inside the circular hole. The arc seat 3 is rotatably connected to the positive and negative threaded rod 6 through the bearing, and the thread spiral directions of the positive and negative threaded rod 6 from the middle to the two ends are opposite. The support assembly includes a vertical rod 7 threadedly connected to the two ends of the positive and negative threaded rod 6, and a rotating groove 8 is opened on the top of the vertical rod 7. The interior of the rotating groove 8 is rotatably connected to a fixed pulley 9 through a rotating shaft. The two sides of the vertical rod 7 are fixedly connected with an arc plate 10. When in use, the rotation of the positive and negative threaded rod 6 can simultaneously drive the vertical rod 7 on the surface to move inward or outward, thereby achieving the effect of controlling the distance between the two fixed pulleys 9 above, which is convenient for personnel to adjust and control according to the diameter of the pipeline and the position of the pipeline placed on the fixed pulley 9, so that it can be adapted to pipelines of different sizes.

[0024] One end of the forward and reverse screw rod 6 is fixedly connected to a crank seat 11, and one side of the crank seat 11 is rotatably connected to a crank handle lever 12 via a B bearing. A person can manually crank the crank handle lever 12 to control the rotation of the forward and reverse screw rod 6, making the operation easier for the person and eliminating the need to carry tools.

[0025] A slide groove 13 is provided on the inner bottom wall of the movable groove 4, and a slider 14 is fixedly connected to the lower surface of the vertical rod 7. The slider 14 is slidably connected to the inside of the slide groove 13. The lower surface of the arc plate 10 is tightly abutted against the upper surface of the arc seat 3. The slider 14 and the arc plate 10 make the position of the vertical rod 7 more stable, reducing the possibility of shaking and falling off.

[0026] Support frames 15 are fixedly connected to both sides of the arc seat 3 .

[0027] Specifically, when the pipe welding rotating support is working / in use: when in use, two of the devices are aligned and placed, and the inner pipe 2 is pulled outward according to the length of the pipe to be welded, so as to control the distance between the two arc seats 3, and then a pipe is placed on each of the two devices and the pipes are aligned. After alignment, the two pipes can be welded. After welding some joints, personnel can manually push the pipe to rotate the pipe, so as to turn the bottom joint to the top, which is convenient for personnel to perform subsequent welding operations on the unwelded position, so as to rotate the pipe through the equipment, thereby avoiding the difficulty of welding at the pipe mouth joint due to the small bottom gap during installation. At the same time, the operation pit excavation process can be omitted, the operation pit support process can be reduced, and safety can be better guaranteed, and construction efficiency can be greatly improved.

[0028] Although 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 appended claims and their equivalents.

Claims

1. A pipeline welding rotating support, comprising a guide tube (1), characterized in that: The guide tube (1) is plugged with an inner tube (2), one end of the guide tube (1) and one end of the inner tube (2) are fixedly connected with an arc seat (3), a positive and negative threaded rod assembly is arranged inside the arc seat (3), and both ends of the surface of the positive and negative threaded rod assembly are threadedly connected with a support assembly; The forward and reverse threaded rod assembly comprises a movable groove (4) formed on the upper surface of an arc-shaped seat (3); a circular hole is formed on the inner wall of the movable groove (4); an A bearing (5) is fixedly installed inside the circular hole; and the arc-shaped seat (3) is rotatably connected to the forward and reverse threaded rod (6) via the bearing.

2. The pipeline welding rotating support according to claim 1, characterized in that: The support assembly comprises a vertical rod (7) threadedly connected to the two ends of the positive and negative threaded rods (6); a rotation groove (8) is provided at the top of the vertical rod (7); a fixed pulley (9) is rotatably connected to the interior of the rotation groove (8) via a rotating shaft; and arc plates (10) are fixedly connected to the two sides of the vertical rod (7).

3. The pipeline welding rotating support according to claim 1, characterized in that: One end of the forward and reverse threaded rod (6) is fixedly connected to a crank seat (11), and one side of the crank seat (11) is rotatably connected to a crank handle lever (12) via a B bearing.

4. The pipeline welding rotating support according to claim 2, characterized in that: The inner bottom wall of the movable groove (4) is provided with a sliding groove (13), and the lower surface of the vertical rod (7) is fixedly connected with a sliding block (14).

5. The pipeline welding rotating support according to claim 4, characterized in that: The sliding block (14) is slidably connected to the inside of the sliding groove (13), and the lower surface of the arc plate (10) is tightly abutted against the upper surface of the arc seat (3).

6. The pipeline welding rotating support according to claim 1, characterized in that: Support frames (15) are fixedly connected to both sides of the arc-shaped seat (3).

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