A support alignment device for pipe installation
The design of the support adjustment device solved the problems of position adjustment and stress relief in the installation of nuclear island pipelines, and achieved precise alignment and improved welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG THERMAL POWER CONSTR CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-08-04
AI Technical Summary
During the installation and welding of pipelines in the nuclear island, the large weight and length of the pipelines make it difficult to adjust their position accurately, resulting in the accumulation of welding stress, which affects the welding quality, and the deviation of the pipe ends is difficult to control.
Design a support adjustment device, including a support plate, a flat plate and a base plate, equipped with a bolt and nut assembly, a universal ball and a hoist. The bolt and nut assembly and the universal ball achieve precise position adjustment of the pipeline, and the hoist adjusts the height and angle to eliminate welding stress.
It enables precise pipe alignment and flexible adjustment of welding positions, eliminates welding stress, and improves welding quality and precision.
Smart Images

Figure CN224587377U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline installation and welding technology, and in particular to the installation and welding of nuclear-grade pipelines. Background Technology
[0002] During the installation and welding process of nuclear island pipelines, steel platforms are generally used for support and adjustment.
[0003] This application has revealed at least the following problems in the current pipeline installation and welding process during actual application:
[0004] (1) During the pipeline installation process, when the pipeline itself is heavy, it is impossible to use hoists or other tools for fine adjustment, resulting in poor pipeline welding quality;
[0005] (2) Because the pipeline is long, the center of gravity is far away from the pipe opening, and the stress accumulates at the weld, which affects the welding quality of the pipeline.
[0006] (3) The pipeline is large in mass and is a single pipeline. During the welding process, it is affected by stress at one end, and the pipe opening of the other end connected to the equipment may deviate from the expected position, which will ultimately affect the welding quality of the pipeline. Utility Model Content
[0007] This invention aims to solve the problem of difficulty in making precise adjustments during pipeline installation in the prior art. Therefore, one objective of this invention is to provide a device for temporary support during pipeline installation, enabling precise position adjustment and reducing weld stress. This device allows the pipeline to move freely during installation and assembly, ensuring precise alignment, while simultaneously eliminating stress accumulation during welding. Furthermore, it adjusts the starting position of the weld according to changes in the position of the other end of the pipe.
[0008] To achieve the above objectives, this utility model proposes:
[0009] A support and adjustment device for pipeline installation includes a support plate, a flat plate, and a base plate, which are arranged sequentially from top to bottom. The base plate has a plurality of bolt and nut assemblies, each with a first connecting member. The flat plate is mounted on the first connecting member and has a plurality of universal balls and limiting channel steel. The support plate is mounted on the universal balls and has a plurality of second connecting members. At least one hoist is mounted on each of the second connecting members on both sides. Each hoist has a semi-circular arc plate, and the support plate also has a semi-circular arc platform.
[0010] Preferably, the bolt and nut assembly includes a bolt and two nuts, with the nuts fitted onto the bolt.
[0011] Preferably, the first connector is disposed on the nut of the bolt and nut assembly, and the first connector is provided with a plurality of through holes, the diameter of which is greater than or equal to the diameter of the bolt and smaller than the diameter of the nut.
[0012] Preferably, a U-shaped frame is provided on the output shaft of the gate hoist, and the semi-circular plate is provided on the U-shaped frame.
[0013] Preferably, the flat plate is provided with a plurality of limiting frames, and the omnidirectional ball is disposed in the limiting frames.
[0014] Preferably, the bottom of the base plate is provided with several support legs.
[0015] Preferably, the support plate is provided with a diagonal brace, one end of which is connected to the second connector and the other end is connected to the hoist.
[0016] The beneficial effects of this utility model are:
[0017] 1. During the pipe installation alignment stage, this utility model can be used to adjust the height, level, and angle of the pipe, enabling precise pipe adjustment.
[0018] 2. This utility model is equipped with multiple universal balls. When the pipe is subjected to a horizontal force during the welding process, the pipe can move freely in the horizontal direction to eliminate the stress generated during the welding process. The starting position and direction of the next weld can also be determined by the direction of pipe movement, so that the position of the pipe can be guaranteed to be within a certain range.
[0019] 3. Compared with the traditional method of directly supporting pipes with a frame, this utility model can make fine adjustments before installation, detect the direction of stress during the installation and welding process to adjust the next weld, eliminate the internal stress of the weld, and serve as a fixed support for pipe installation after installation.
[0020] The features and advantages of this utility model will be described in detail through embodiments in conjunction with the accompanying drawings. Attached Figure Description
[0021] Figure 1 This is a perspective view of the utility model;
[0022] Figure 2 This is an exploded view of the present invention;
[0023] Figure 3 This is a schematic diagram of the connection between the bolt and nut assembly and the first connecting member of this utility model.
[0024] In the diagram: 1. Support plate, 2. Flat plate, 3. Base plate, 4. Bolt and nut assembly, 5. First connector, 6. Universal ball, 7. Second connector, 8. Hoist, 9. Semi-circular arc plate, 10. Semi-circular arc platform, 11. U-shaped frame, 12. Limiting frame, 13. Support leg, 14. Diagonal brace, 15. Limiting channel steel, 16. Top screw. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.
[0027] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. “A plurality” includes two, equivalent to at least two. The words “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” covers the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.
[0028] Please refer to Figure 1-3A support and adjustment device for pipeline installation includes a support plate 1, a flat plate 2, and a base plate 3, arranged sequentially from top to bottom. The base plate 3 has six sets of bolt and nut assemblies 4, each with a first connecting member 5. The bolt and nut assemblies 4 support the first connecting members 5, with each pair of bolt and nut assemblies 4 supporting one first connecting member 5. There are three first connecting members 5 in total. The flat plate 2 has two limiting channel steels 15, welded together. Each limiting channel steel 15 has a hole for installing a set screw 16, which can be adjusted to fix the support plate 1. The plate 2 is mounted on the first connecting member 5. Eight universal balls 6 are mounted on the plate 2. The support plate 1 is mounted on the universal balls 6. Four second connecting members 7 are mounted on the support plate 1. At least one hoist 8 is mounted on each of the second connecting members 7 on both sides. A semi-circular arc plate 9 is mounted on the hoist 8. A semi-circular arc platform 10 is also mounted on the support plate 1. The axis of the semi-circular arc plate 9 and the axis of the semi-circular arc platform 10 are on the same vertical plane.
[0029] The bolt and nut assembly 4 includes a bolt and two nuts. The nuts are fitted onto the bolt, and one of the nuts is connected to the bottom of the bolt and contacts the upper surface of the base plate 3. The nuts can be fixed to the base plate 3 by spot welding. That is, the bolt and nut assembly 4 is fixed to the base plate 3 by welding.
[0030] The first connector 5 is disposed on another nut of the bolt and nut assembly 4. The first connector 5 is provided with two through holes, which correspond to the two bolt and nut assemblies 4 respectively. The diameter of the through holes is greater than or equal to the diameter of the bolt, and the diameter of the through holes is less than the diameter of the nut. That is, the bolt of the bolt and nut assembly 4 can pass through the through holes, but the nut of the bolt and nut assembly 4 cannot pass through the through holes. This allows the first connector 5 to be located on the nut of the bolt and nut assembly 4. The height of the nut can be adjusted as needed, thereby adjusting the height of the first connector 5, and thus making a preliminary adjustment to the position of the pipeline on the Z-axis.
[0031] A U-shaped frame 11 is provided on the output shaft of the hoist 8, and a semi-circular plate 9 is provided on the U-shaped frame 11. The semi-circular plate 9 can rotate on the U-shaped frame 11 to adjust the angle of the pipe.
[0032] In this embodiment, the gate hoist 8 is a manual screw gate hoist 8, which can adjust the height of the U-shaped frame 11, thereby adjusting the height and inclination angle of the pipeline.
[0033] The plate 2 is provided with eight limiting frames 12, the number of which is the same as the number of omnidirectional balls 6. The omnidirectional balls 6 are set in the limiting frames 12 to restrict their movement. The plate 2 is provided with two limiting channel steels 15, each with a hole for installing a set screw 16. The support plate 1 can be fixed by adjusting the set screw 16.
[0034] The bottom of the base plate 3 is equipped with eight support legs 13.
[0035] A diagonal brace 14 is provided on the support plate 1. One end of the diagonal brace 14 is connected to the second connecting piece 7, and the other end is connected to the hoist 8. The diagonal brace 14 serves to support the hoist 8.
[0036] In this embodiment, the first connector 5, the second connector 7, the support leg 13, and the diagonal brace 14 are all made of channel steel.
[0037] This utility model relates to a support and adjustment device for pipeline installation, and the specific steps of its manufacturing method are as follows:
[0038] S1. First, weld the support leg 13 to the base plate 3;
[0039] S2. Weld the nut of the bolt and nut assembly 4 that contacts the base plate 3 to the base plate 3, adjust the position of the other nut, assemble the first connecting piece 5 with the through hole onto the nut, and weld the two together using a welding process.
[0040] S3. Weld the limiting frame 12 onto the plate 2, place the universal ball 6 into the limiting frame 12, and place the plate 2 on the first connector 5.
[0041] S4. Assemble the hoist 8, semi-circular arc platform 10, etc. onto the support plate 1, and finally place the support plate 1 on the universal ball 6.
[0042] This utility model is a support and adjustment device for pipeline installation, and its usage method is as follows:
[0043] S1. Place the pipe to be welded on the semi-circular arc table 10.
[0044] S2. The height and inclination of the pipe are adjusted by the hoist 8, and the pipe and support plate 1 can move horizontally under the action of the universal ball 6.
[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A support alignment device for pipe installation, characterized by, The device includes a support plate, a flat plate, and a base plate, arranged sequentially from top to bottom. The base plate has several bolt and nut assemblies, each with a first connecting member. The flat plate is mounted on the first connecting member and has several universal balls and limiting channel steel. The support plate is mounted on the universal balls and has several second connecting members. At least one hoist is mounted on each of the second connecting members on both sides. Each hoist has a semi-circular arc plate, and the support plate also has a semi-circular arc platform.
2. A support alignment device for pipe installation according to claim 1, wherein, The bolt and nut assembly includes a bolt and two nuts, with the nuts fitted onto the bolt.
3. A support alignment device for pipe installation according to claim 2, wherein, The first connector is disposed on the nut of the bolt and nut assembly. The first connector has a plurality of through holes, the diameter of which is greater than or equal to the diameter of the bolt and less than the diameter of the nut.
4. A support alignment device for pipe installation according to claim 1 or 3, characterised in that, A U-shaped frame is provided on the output shaft of the gate hoist, and the semi-circular arc plate is provided on the U-shaped frame.
5. The support alignment device for plumbing installations according to claim 1, characterized in that, The flat plate is provided with several limiting frames, and the omnidirectional ball is set in the limiting frames.
6. The support alignment device for plumbing installations of claim 1, wherein, The bottom of the base plate is provided with several support legs.
7. The support alignment device for plumbing installations according to claim 1, characterized in that, The support plate is provided with a diagonal brace, one end of which is connected to the second connector and the other end is connected to the hoist.