A large pipe positioning device
By combining the lower support frame, jack, and upper support frame, along with the design of reflector assembly, lifting ring, limiting rod, and diagonal reinforcing ribs, the problems of low matching efficiency and insufficient accuracy of traditional large pipeline positioning devices are solved, achieving efficient and safe pipeline docking.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中建五局安装工程有限公司
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional large-scale pipeline positioning devices suffer from low alignment efficiency, insufficient positioning accuracy, cumbersome operation, and reliance on manual experience, which affects project progress and cost.
It adopts a combined structure of lower support frame, jack and upper support frame, equipped with reflector group, lifting ring, limit rod and diagonal reinforcing rib, combined with universal wheels with brakes, to achieve precise adjustment and stable fixation of pipeline.
It improves matching efficiency and positioning accuracy, reduces labor intensity and safety risks, enhances fixing reliability and structural stability, and is suitable for various construction scenarios.
Smart Images

Figure CN224533683U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a large pipeline positioning device. Background Technology
[0002] Large pipelines typically refer to metal or composite material pipelines with a nominal diameter of not less than 500mm or significant weight that require mechanically assisted installation. In large pipeline installation projects, especially during the welding of large-diameter steel pipes for building ventilation, air conditioning systems, and industrial pipelines, the alignment accuracy of the pipe joints directly affects the welding quality, system sealing, and long-term structural safety. Traditional construction methods generally employ manual labor with chain hoists and hand-operated hoists for pipe hoisting and alignment adjustments. Because chain hoists and hand-operated hoists are prone to vibration and instability, multiple people are needed to stabilize and adjust them, making the process cumbersome and inefficient. Furthermore, alignment accuracy is greatly affected by the operator's experience and physical strength, easily leading to problems such as misalignment and uneven gaps, requiring rework and re-welding, severely impacting project progress and construction costs. Therefore, traditional pipeline positioning devices suffer from low alignment efficiency and insufficient adjustment and positioning accuracy. Utility Model Content
[0003] The purpose of this invention is to provide a large-scale pipeline positioning device to solve the problems of low alignment efficiency and insufficient positioning accuracy of traditional pipeline positioning devices.
[0004] To achieve the above objectives, the present invention provides a large-scale pipeline positioning device using the following technical solution: A large pipe positioning device, comprising, from bottom to top: The lower support frame has a height of 0.8m to 1.6m; The jack is fixedly connected at the bottom to the top of the lower support frame; The upper support frame is fixedly connected to the top of the jack at the bottom, and the top of the upper support frame is provided with an arc-shaped bracket for supporting the track.
[0005] As an optimization of a large pipe positioning device, it also includes at least one set of reflectors, the set of reflectors including a first reflector disposed on the upper support frame and a second reflector disposed on the lower support frame, the mirror surface of the first reflector facing the pipe interface, and the mirror surface of the second reflector facing the reflection direction of the first reflector.
[0006] As an optimization of a large pipe positioning device, the top of the upper support frame is provided with a lifting ring and a strap that can pass through the lifting ring to circumferentially bind and fix the pipe.
[0007] As an optimization of a large pipeline positioning device, the upper support frame is provided with multiple upward-extending limiting rods around its top periphery to restrict the lateral movement of the pipeline.
[0008] As an optimization of a large pipe positioning device, the upper support frame is provided with oblique reinforcing ribs between its side and bottom to enhance the structural stability of the upper support frame.
[0009] As an optimization of a large pipeline positioning device, the bottom of the lower support frame is provided with multiple pulleys, which are universal wheels with braking function.
[0010] Compared to existing technologies, the advantages of this utility model are as follows: The large pipeline positioning device provided by this utility model, through the stable combination structure of the lower support frame, jack, and upper support frame, achieves precise and stable adjustment of the height of large pipelines. Operators can operate directly from the ground, significantly improving alignment efficiency and reducing labor intensity and the risks of working at heights. By setting up a reflector group, real-time visual monitoring of the pipeline interface at height is achieved by ground personnel, greatly improving alignment positioning accuracy and operational safety. The combined use of straps, lifting rings, and limit rods effectively restricts the horizontal movement and rolling of the pipeline, enhancing the reliability of fixation. The diagonal reinforcing ribs set on the upper support frame significantly improve the rigidity and stability of the overall structure, ensuring safe use under heavy load conditions. The universal casters with brakes at the bottom of the lower support frame make the device flexible in movement and convenient in positioning, suitable for various construction scenarios. This positioning device has the advantages of reasonable structure, simple operation, high alignment accuracy, and wide adaptability, and has good prospects for engineering applications. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the overall structure of a large pipeline positioning device according to an embodiment of this application; Figure 2 This is a schematic diagram illustrating the application layout of a large pipeline positioning device according to an embodiment of this application.
[0013] In the diagram: 1. Lower support frame; 11. Pulley; 2. Jack; 3. Upper support frame; 30. Pipe; 31. Arc bracket; 4. Reflector assembly; 41. First reflector; 42. Second reflector; 5. Lifting ring; 6. Straps; 7. Limiting rod; 8. Diagonal reinforcing rib. Detailed Implementation
[0014] To make the technical solution and advantages of this utility model clearer, the present utility model and its beneficial effects will be described in further detail below with reference to specific embodiments and accompanying drawings. However, the embodiments of this utility model are not limited thereto.
[0015] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0016] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0017] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail below.
[0018] This application provides a large pipeline positioning device, which adopts the following technical solution: Reference Figure 1 The large pipeline positioning device comprises, from bottom to top, a lower support frame 1, a jack 2, and an upper support frame 3. Both the lower support frame 1 and the upper support frame 3 are rectangular frame structures welded from H-beams or channel steel, possessing high strength and resistance to deformation. The lower support frame 1 is a topless frame, and the upper support frame 3 is a bottomless frame; they are aligned by four corner columns, reinforced by transverse spokes, resulting in a symmetrical structure and reasonable stress distribution. The jack 2 is preferably a mechanical screw type, its bottom fixed to the top flange plate of the lower support frame 1 by high-strength bolts, and its top also fastened to the bottom connecting plate of the upper support frame 3 by bolts. This design not only facilitates easy assembly and disassembly and allows for adaptation to different usage scenarios but also withstands significant off-center loads and vibrations, making it suitable for complex construction site environments. The preferred height of the lower support frame 1 is between 0.8m and 1.6m. This preferred height range allows operators to directly operate the jack 2 in a natural standing posture, reducing bending or climbing, and improving operational comfort and safety. An arc-shaped bracket 31 is welded and fixed to the top of the upper support frame 3. Its curvature matches the outer wall of the pipe 30 to be connected. Its inner arc surface is lined with a rubber anti-slip pad, which enhances the friction between the bracket and the pipe 30, preventing slippage, and also avoids mechanical damage to the anti-corrosion layer of the pipe 30. (Refer to...) Figure 2In application, for example, two positioning devices can be used as a group to support a large pipe 30. Operators can adjust the linear lifting action of the jack 2 on the ground to smoothly raise and lower the upper support frame 3, thereby achieving precise control of the height of the large pipe 30. This enables fast and stable alignment operations and significantly improves alignment efficiency and centering accuracy.
[0019] In a preferred embodiment of this application, reference is made to Figure 1 and Figure 2 The large pipeline positioning device also includes at least one set of reflectors 4, including a first reflector 41 that is multi-directionally adjustable and mounted on the upper side of the upper support frame 3, and a second reflector 42 that is multi-directionally adjustable and mounted on the side of the lower support frame 1. The mirror surface of the first reflector 41 faces the interface area of the pipeline 30, while the second reflector 42 faces the reflection direction of the first reflector 41. It should be understood that the number, position, and angle of the first reflector 41 and the second reflector 42 shown in the attached figures are only an exemplary configuration and are not a limitation on the actual optical path structure. In practical applications, the number, installation position, and angle of the reflectors can be flexibly adjusted according to the specific construction environment and visual requirements. For example, multiple first reflectors and / or second reflectors can be set up to form a continuous reflected light path by matching angles, so as to ensure that ground personnel can clearly observe the alignment of the interface of the pipeline 30 at a high position. The reflector group 4 serves as an optical auxiliary system, enabling operators to clearly observe the alignment of the pipe 30 interface from the ground, avoiding frequent climbing or the use of other equipment. This significantly improves the convenience and accuracy of alignment visual feedback, greatly enhancing visual feedback efficiency and operational safety, and is especially suitable for situations where limited space or high-altitude operations are difficult.
[0020] In a preferred embodiment of this application, reference is made to Figure 1 and Figure 2 A pair of lifting rings 5 are symmetrically installed on the top of the upper support frame 3, and a strap 6 made of nylon is provided to pass through the lifting rings 5. The strap 6 passes through the lifting rings 5 to achieve a ring-shaped binding of the pipe 30, which supports single-person operation. The binding force is uniform and adjustable, which not only ensures the stability of the pipe 30 during the adjustment process, but also adapts to the use requirements of different pipe diameters. It effectively prevents the pipe 30 from rolling or slipping during height adjustment, enhances the fixing effect, and improves the safety of operation.
[0021] In a preferred embodiment of this application, reference is made to Figure 1 and Figure 2 The top of the upper support frame 3 is detachably connected to multiple upward-extending limiting rods 7 by bolts, which surround the outside of the pipe 30. The multiple limiting rods 7 form an adjustable enclosure structure, which can restrict the horizontal movement of the pipe 30, effectively restrict the horizontal movement or rotation of the pipe 30, prevent misalignment during the alignment process, and reduce the safety risk of lateral detachment.
[0022] In a preferred embodiment of this application, reference is made to Figure 1 and Figure 2 The upper support frame 3 has diagonal reinforcing ribs 8 welded between its sides and top. The reinforcing ribs are distributed in a triangular structure, which significantly enhances the overall rigidity and bending resistance of the upper support frame 3, prevents deformation during load-bearing or adjustment, and ensures the structural reliability of the device during long-term use.
[0023] In a preferred embodiment of this application, reference is made to Figure 1 and Figure 2 The bottom of the support frame is equipped with multiple pulleys 11, which are symmetrically installed on both sides of the bottom of the lower support frame 1. The pulleys 11 are omnidirectional wheels with brakes. The pulleys 11 not only make the entire equipment easy to move and position, but also achieve reliable parking through independent brakes, which facilitates continuous use at multiple work positions on the construction site, improving equipment utilization and construction flexibility.
[0024] The application process and implementation principle of this application embodiment are as follows: In practical application, the positioning device is first pushed to the installation position of the pipe 30 through the pulley 11, and the brake is stepped on to lock the position; the pipe 30 is hoisted onto the arc-shaped bracket 31 of the upper support frame 3 using lifting equipment, and the binding strap 6 is threaded around the pipe diameter and tightened to form a circumferential constraint, so that the pipe 30 is stably placed in the bracket; the operator rotates the jack 2 on the ground to accurately adjust the height of the pipe 30, and at the same time monitors the alignment of the interface at the high position in real time through the reflector group 4. If necessary, the pulley 11 is released and the horizontal position or circumferential angle of the pipe 30 is finely adjusted through the lower support frame 1 to achieve rapid and accurate alignment; the reinforcing ribs and the overall rigid structure ensure stability under load, and while improving the alignment accuracy and efficiency, it significantly reduces the operation risk and labor intensity, making it suitable for construction scenarios such as welding of large pipes 30, flange connection and prefabrication assembly.
[0025] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.
Claims
1. A positioning device for a large pipeline (30), characterized in that, From bottom to top, they include: The lower support frame (1) has a height of 0.8m to 1.6m; The jack (2) is fixedly connected to the top of the lower support frame (1) at its bottom; The upper support frame (3) is fixedly connected to the top of the jack (2) at the bottom, and the top of the upper support frame (3) is provided with an arc-shaped bracket (31) for supporting the support channel (30).
2. The positioning device for a large pipeline (30) according to claim 1, characterized in that, It also includes at least one set of reflector groups (4), which includes a first reflector (41) disposed on the upper support frame (3) and a second reflector (42) disposed on the lower support frame (1). The mirror surface of the first reflector (41) faces the interface of the pipe (30), and the mirror surface of the second reflector (42) faces the reflection direction of the first reflector (41).
3. A large pipeline (30) positioning device according to claim 1 or 2, characterized in that, The top of the upper support frame (3) is provided with a lifting ring (5) and a strap (6) that can pass through the lifting ring (5) to circumferentially bind and fix the pipe (30).
4. A large pipeline (30) positioning device according to claim 1, characterized in that, The upper support frame (3) has multiple upwardly extending limiting rods (7) around its top periphery to restrict the lateral movement of the pipe (30).
5. A large pipeline (30) positioning device according to claim 1, characterized in that, The upper support frame (3) is provided with oblique reinforcing ribs (8) between its side and bottom to enhance the structural stability of the upper support frame (3).
6. A large pipeline (30) positioning device according to claim 1, characterized in that, The bottom of the lower support frame (1) is provided with multiple pulleys (11), and the pulleys (11) are universal wheels with braking function.