Support for pre-stretching construction of flue gas pipeline
The adjustable support plate and ball bearing structure bracket design solves the problems of limited size adjustment and high frictional resistance of existing brackets, enabling flexible docking and convenient operation of multi-size pipes, and improving the efficiency and convenience of flue gas duct pre-stretching construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA ELEVENTH CHEM CONSTR
- Filing Date
- 2025-06-06
- Publication Date
- 2026-04-28
AI Technical Summary
The existing pre-stretching construction support for flue gas ducts has limited size adjustment, making it difficult to adapt to ducts of different diameters. The angle and position of the support plate cannot be flexibly adjusted, resulting in inconvenience in construction and high frictional resistance, which affects construction efficiency.
It adopts an adjustable support plate and ball bearing structure, and the angle and position of the support plate can be flexibly adjusted through the rotating shaft and support rail. The ball bearings reduce frictional resistance, and the support plate can be lowered to facilitate pipe removal.
It expands the applicability of the support, improves the flexibility and efficiency of construction, reduces frictional resistance, reduces pipe wear, and simplifies the operation process.
Smart Images

Figure CN224174652U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline connection technology, and in particular to a support for pre-stretching construction of flue gas pipelines. Background Technology
[0002] During the pre-stretching construction of flue gas ducts, supports are typically used to hold and secure the ducts, facilitating the movement and connection of the two ends. However, existing support structures have the following drawbacks:
[0003] Firstly, size adjustment is limited. Traditional supports have fixed support spacing, making it difficult to adapt to the installation needs of flue gas ducts of different diameters or sizes, resulting in poor versatility and insufficient construction flexibility. Secondly, the support plates of existing supports are usually fixed structures, making it impossible to flexibly adjust the angle or position, and inconvenient to adjust the height on one side to remove the duct from that side. For larger diameter ducts, this is inconvenient and affects construction efficiency. Thirdly, due to the lack of an effective sliding or rolling structure, the duct movement resistance is high during pre-tensioning, making it difficult to achieve smooth and precise connection, increasing construction difficulty and labor costs.
[0004] Therefore, there is an urgent need for a pre-stretching support for flue gas ducts that can flexibly adjust the support spacing, facilitate the adjustment of the support plate status, and optimize the sliding connection of the ducts, so as to improve construction efficiency and applicability. Utility Model Content
[0005] The purpose of this utility model is to provide a support for pre-stretching construction of flue gas ducts. It can not only meet the docking needs of flue gas ducts of various sizes through the adjustment of the support plate, but also reduce the height of one side of the support by adjusting the support plate to facilitate the removal of the duct from one side. At the same time, the use of ball bearings can greatly reduce the resistance when the duct is docked and moved, improve the convenience of construction, and increase construction efficiency.
[0006] The present invention adopts the following technical solution:
[0007] A support bracket for pre-stretching construction of flue gas ducts includes two symmetrically arranged support rails, a rotating shaft between the two support rails, two relatively adjustable support plates movably mounted on the rotating shaft, and ball bearings movably mounted on the adjacent end faces of the two support plates; a strut movably mounted on the far end of each of the two support plates, and a slide rail movably connected to the bottom of the strut, the slide rail being adjustablely mounted within the support rails.
[0008] Preferably, the top of the slide rail has a receiving groove that extends through the end.
[0009] Preferably, the top end of the support rail is provided with a groove, and the slide rail is slidably connected to the support rail through the groove; the support rail is provided with a positioning element for positioning the slide rail.
[0010] Preferably, the bottom of the slide rail is movably provided with a movable wheel, and the slide rail is slidably connected to the support rail through the movable wheel.
[0011] Preferably, the positioning element is a positioning bolt threaded onto the support rail.
[0012] Preferably, each end of the slide rail away from the support track is provided with a support roller, and the bottom of the support roller is on the same horizontal plane as the bottom of the support track.
[0013] Preferably, there are two support rollers, distributed on both sides of the slide rail width direction.
[0014] Preferably, the end of the positioning bolt is provided with a smooth structure, and the slide rail is provided with a guide groove on the side near the positioning bolt.
[0015] Compared with existing technologies, the advantages of this utility model are as follows: By movably arranging two support plates and a rotating shaft, the included angle between the two support plates can be adjusted, thus accommodating pipes of various diameters, expanding the applicability of this utility model, and improving its flexibility of use. The use of two symmetrically arranged support rails ensures the balance and stability of the support when bearing the pipe, preventing displacement or tilting due to uneven force. Ball bearings on the end faces of the support plates allow for smoother sliding of the pipe during pre-tensioning, reducing frictional resistance, minimizing wear on the pipe surface, and improving construction efficiency. Furthermore, the adjustable movement of the support plates relative to the rotating shaft allows for downward adjustment of one side of the support plate when the pipe needs to be removed, facilitating the smooth rolling removal of the pipe from that side of the support plate and improving operational convenience. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;
[0017] Figure 2 This is a top view of the slide rail according to an embodiment of this application;
[0018] Figure 3 This is a schematic diagram of the positioning bolt in an embodiment of this application. Detailed Implementation
[0019] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments:
[0020] like Figures 1 to 3As shown, the present invention discloses a support for pre-stretching construction of flue gas ducts, comprising two symmetrically arranged support rails 1, with a rotating shaft 2 fixedly disposed between the two support rails 1. The rotating shaft 2 is located on the upper part of the two support rails 1, and two relatively adjustable support plates 3 are movably disposed on the rotating shaft 2. Ball bearings 4 are movably disposed on the adjacent end faces of the two support plates 3. The ball bearings 4 facilitate smoother sliding of the duct during pre-stretching, reduce frictional resistance, minimize wear on the duct surface, and improve construction efficiency. A strut 5 is movably disposed at the far end of each of the two support plates 3, and a slide rail 6 is movably connected to the bottom of the strut 5. The slide rail 6 is adjustablely disposed within the support rail 1. In the initial state, the strut 5 provides support for the support plates 3 to ensure their stability.
[0021] Furthermore, the top of the slide rail 6 has a through-end receiving groove 7, which provides storage space for the support rod 5 when the support plate 3 is adjusted downward along the rotating shaft 2, thereby expanding the adjustment range of the support plate 3 and allowing the support plate 3 to move closer to a horizontal state. By lowering the height of one side of the support plate 3, the convenience of subsequent pipe removal can be improved. In addition, the top of the support rail 1 has a sliding groove 8, through which the slide rail 6 is slidably connected to the support rail 1; the support rail 1 is provided with a positioning element for positioning the slide rail 6, which can position the slide rail 6 and ensure the stability of the entire support structure during operation; preferably, the positioning element is a positioning bolt 9, which is threaded on the outside of the support rail 1 and extends into the support rail 1. In use, the slide rail 6 is positioned by tightly abutting the positioning bolt 9 against the outer wall of the slide rail 6. When the slide rail 6 needs to be adjusted, the positioning bolt 9 can be loosened to disengage it from the slide rail 6. To ensure the stability of the slide rail 6 movement, a guide groove 10 can be provided on the side wall of the slide rail 6. A smooth structure is provided at one end of the positioning bolt 9 located in the slide groove 8 so that it slides in contact with the guide groove 10, so as to prevent the slide rail 6 from tilting upward from the slide groove 8 due to uneven force during the adjustment process. When positioning is required, tighten the positioning bolt 9 so that its end is tightly abutted against the inner side wall of the guide groove 10.
[0022] Furthermore, a movable wheel 11 is movably provided at the bottom of the slide rail 6. The slide rail 6 is slidably connected to the support rail 1 through the movable wheel 11 to reduce the friction between the bottom of the slide rail 6 and the bottom of the slide groove 8 when the slide rail 6 moves, thereby reducing the resistance when the slide rail 6 moves. In addition, a support roller 12 is provided at the end of the slide rail 6 away from the support rail 1. The bottom of the support roller 12 is on the same horizontal plane as the bottom of the support rail 1. That is, in the working state, the support roller 12 and the support rail 1 work together to provide support, ensuring the stability of the slide rail 6 after it slides out of the support rail 1. Preferably, there are two support rollers 12, distributed on both sides of the width direction of the slide rail 6.
[0023] In use, the angles of the two support plates 3 are adjusted according to the diameter of the pipe, and then locked using the positioning bolts 9. When the pipe needs to be removed, the positioning bolts 9 are loosened, and then the support plate 3 on the corresponding side is lowered as needed to allow the pipe to be pushed out from one side, avoiding the cumbersome operation of lifting and disassembling the pipe and improving the convenience of operation. In addition, the ball bearings 4 set on the end face of the support plate 3 allow the pipe to slide more smoothly during pre-tensioning, reducing frictional resistance, reducing wear on the pipe surface, and improving construction efficiency.
Claims
1. A support for pre-stretching construction of flue gas ducts, characterized in that: It includes two symmetrically arranged support rails, with a rotating shaft between the two support rails. Two relatively adjustable support plates are movably mounted on the rotating shaft, and ball bearings are movably mounted on the adjacent end faces of the two support plates. A strut is movably mounted on the far end of each of the two support plates, and a slide rail is movably connected to the bottom of the strut. The slide rail is adjustablely mounted within the support rails.
2. The support for pre-stretching construction of flue gas ducts according to claim 1, characterized in that: The slide rail has a through-end receiving groove at its top.
3. The support for pre-stretching construction of flue gas ducts according to claim 2, characterized in that: The top of the support rail is provided with a sliding groove, and the slide rail is slidably connected to the support rail through the sliding groove; the support rail is provided with a positioning element for positioning the slide rail.
4. The support for pre-stretching construction of flue gas ducts according to claim 3, characterized in that: The slide rail is movably provided with a movable wheel at its bottom, and the slide rail is slidably connected to the support rail through the movable wheel.
5. The support for pre-stretching construction of flue gas ducts according to claim 3, characterized in that: The positioning element is a positioning bolt threaded onto the support rail.
6. The support for pre-stretching construction of flue gas ducts according to claim 2, characterized in that: Each end of the slide rail away from the support rail is provided with a support roller, and the bottom of the support roller is on the same horizontal plane as the bottom of the support rail.
7. The support for pre-stretching construction of flue gas ducts according to claim 6, characterized in that: The support rollers are provided in two parts, distributed on both sides of the width direction of the slide rail.
8. The support for pre-stretching construction of flue gas ducts according to claim 5, characterized in that: The end of the positioning bolt is provided with a smooth structure, and the slide rail is provided with a guide groove on the side near the positioning bolt.