Supporting device and method for municipal heat supply pipeline construction

By combining the design of piles, threaded sleeves and welded protective frames, the problem of separating the foundation pit support and the upper welded protective system in the construction of municipal heating pipelines was solved. This integrated the foundation pit support and the upper welded protective system, improved construction safety and ease of operation, adapted to complex weather conditions, and extended the construction time.

CN121496940APending Publication Date: 2026-02-10HEILONGJIANG WATER CONSERVANCY & HYDROPOWER GRP CO LTD
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Patent Information

Application Number
CN202511835401.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-08
Publication Date
2026-02-10

AI Technical Summary

Technical Problem

In the construction of existing municipal heating pipelines, the separation of the foundation pit support from the upper welding protection system leads to problems such as poor stability, inconvenient disassembly and assembly, and extended construction period.

Method used

The design adopts a combination of piles, threaded sleeves and welded protective frames. The piles and retaining plates form the foundation pit support, the threaded sleeves and spiral jacks provide adjustable lateral support, and the welded protective frames are quickly fixed by connecting feet and locking rods. The integrated structure improves stability and convenience.

Benefits of technology

It achieves integrated foundation pit support and upper welding protection, improving construction safety and ease of operation, adapting to complex weather conditions, extending the working time, and possessing good site adaptability and reusability.

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Abstract

The invention discloses a supporting device and method for municipal heat supply pipeline construction, and relates to the technical field of pipeline construction. The supporting device for municipal heat supply pipeline construction comprises a vertical pile, a threaded sleeve, a welding protection frame body, a connecting footstand, a reinforcing cable and a ceiling structure. Wherein the vertical pile is arranged in the foundation pit body, and a soil retaining plate is arranged between the vertical pile and the side wall of the foundation pit body. According to the supporting device for municipal heat supply pipeline construction, through the combined design of the vertical piles, the threaded sleeves and the welding protection frame body, integration of foundation pit supporting and upper welding protection is achieved, reliable foundation pit supporting is formed by the vertical piles and the breast boards, adjustable transverse supporting is provided by the threaded sleeves and the spiral ejector rods, and the supporting effect is good. According to the integrated structure, the problems that in the prior art, due to the fact that a supporting system and a protection system are separated, stability is poor, and disassembly and assembly are inconvenient are effectively solved, and construction safety and operation convenience are improved.
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Description

Technical Field

[0001] This invention relates to the field of pipeline construction technology, specifically to a support device and method for municipal heating pipeline construction. Background Technology

[0002] The construction of municipal heating pipelines involves multiple stages, including foundation pit excavation, pipeline welding, and insulation structure installation. To ensure the stability of the foundation pit sidewalls, support structures, including components such as piles and retaining walls, are usually required. Meanwhile, pipeline welding operations have high environmental requirements, needing to avoid rain, strong winds, and other weather factors affecting welding quality. Therefore, movable protective canopies are often erected above the foundation pit.

[0003] In existing technologies, foundation pit support and upper-level work protection are usually implemented as independent systems, resulting in poor structural coordination, inconvenience of repeated disassembly and assembly, and insufficient overall stability. Currently used mobile protective supports are mostly connected to the ground through simple outriggers, lacking effective interlocking with the foundation pit support structure. They are prone to swaying under wind, affecting the safety of welding operations. Moreover, conventional support devices have limited functions and do not integrate rainproof and quick-disassembly modules, leading to extended construction periods and increased overall costs. To address the shortcomings of existing technologies, this invention provides a support device and method for municipal heating pipeline construction to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a support device and method for municipal heating pipeline construction. Through the combined design of piles, threaded sleeves, and welded protective frames, the integrated design of foundation pit support and upper welded protection is achieved. The piles and retaining plates form reliable foundation pit support, while the threaded sleeves and helical jacks provide adjustable lateral support. The welded protective frames are quickly fixed by connecting feet and locking rods. This integrated structure effectively solves the problems of poor stability and inconvenient disassembly and assembly caused by the separation of support and protection systems in existing technologies, thereby improving construction safety and ease of operation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a support device for the construction of municipal heating pipelines, comprising: Piles are erected inside the main body of the foundation pit, and retaining plates are installed between the piles and the side walls of the main body of the foundation pit. A threaded sleeve is provided between two opposing sets of vertical piles, and both ends of the threaded sleeve are threadedly connected to a helical push rod. The end of the helical push rod is rotatably connected to a pressing seat, and the pressing seat is in contact with the inner side of the vertical pile. A welding protective frame is detachably installed on top of multiple sets of uprights, and multiple sets of connecting feet are fixedly connected to the bottom of the welding protective frame. The connecting feet are secured to the welding protective frame by engaging with locking holes on the uprights via locking rods.

[0006] Preferably, a positioning rod is fixedly connected to the inner side of the pile, and a positioning sleeve that cooperates with the positioning rod is provided on the extrusion seat. Through the cooperation of the positioning rod and the positioning sleeve, the extrusion seat is kept stable during movement.

[0007] Preferably, the top of the compression seat is provided with a retaining seat, and the bottom of the connecting foot is provided with a retaining block adapted to the retaining seat. When the connecting foot is installed above the upright post, the retaining block engages with the retaining seat to form an auxiliary fixation.

[0008] Preferably, the connecting foot has an adjusting platform slidably connected inside, the locking rod is fixed on the adjusting platform, and a bidirectional screw is rotatably connected to the side of the connecting foot. The bidirectional screw is threadedly connected to the adjusting platform. By rotating the bidirectional screw, the adjusting platform and the locking rod are moved, thereby realizing the insertion or disengagement of the locking rod from the locking hole.

[0009] Preferably, the welding protective frame is equipped with a reinforcing cable. One end of the reinforcing cable is fixed to the welding protective frame, and the other end is connected to a ground fastening flange. The ground fastening flange is fixed to the ground by a ground rod, thereby providing windproof reinforcement to the welding protective frame.

[0010] Preferably, the welding protective frame is also provided with a winding frame and a guide hook. The winding frame is used to store the reinforcing cable, and the guide hook is used to guide and limit the reinforcing cable, so as to facilitate the adjustment of the length and tension of the reinforcing cable.

[0011] Preferably, a canopy structure is detachably installed on the top of the welding protective frame, and the canopy structure is connected to the welding protective frame via a flange to form rain protection.

[0012] Preferably, the canopy structure is made of lightweight waterproof material, and the edges of the canopy structure are provided with drainage grooves to guide rainwater.

[0013] Preferably, the side wall of the extrusion seat is provided with a buffer pad, which is made of rubber material, to reduce the impact when the extrusion seat comes into contact with the upright pile.

[0014] The second aspect of the present invention discloses a method for a support device for the construction of a municipal heating pipeline. The method includes the following steps: Step S1: Excavation of the foundation pit and installation of piles: Installing piles inside the main body of the foundation pit and setting up retaining plates between the piles and the side wall of the foundation pit to form foundation pit support. Step S2: Lateral support adjustment: Install threaded sleeves between two sets of opposing piles, rotate the spiral jack to make the compression seat fit against the inside of the pile, and ensure stable support by cooperating with the positioning sleeve and positioning rod; Step S3: Welding protective frame installation: Place the connecting feet at the bottom of the welding protective frame on top of the upright post, adjust the locking rod by rotating the double-sided screw so that the locking rod is inserted into the locking hole, and at the same time the locking block engages with the locking seat to fix the welding protective frame; Step S4: Reinforcement cable installation: Pull out the reinforcement cable from the winding frame on the welding protection frame, guide it through the guide hook, fix the ground fastening flange to the ground, and tension the reinforcement cable to enhance stability; Step S5: Roof installation: Install the roof structure on the top of the welded protective frame using flanges to form rain protection; Step S6: Pipeline welding and insulation construction: Welding of heating pipelines and installation of insulation structure are carried out under the welding protective frame, and the support device is used to avoid the influence of weather. Step S7: Disassembly and relocation: After the construction is completed, reverse the steps S3 to S5 to disassemble the welded protective frame and roof structure to facilitate relocation to the next construction site.

[0015] The technical effects and advantages of this invention are as follows: 1. This municipal heating pipeline construction support device, through the combined design of piles, threaded sleeves, and welded protective frames, achieves integrated foundation pit support and upper welded protection. The piles and retaining plates form reliable foundation pit support, the threaded sleeves and helical jacks provide adjustable lateral support, and the welded protective frames are quickly fixed through connecting feet and locking rods. This integrated structure effectively solves the problems of poor stability and inconvenient disassembly and assembly caused by the separation of support and protection systems in existing technologies, and improves construction safety and ease of operation.

[0016] 2. The support device for the construction of municipal heating pipelines adopts a matching structure of positioning rod and positioning sleeve to ensure that the extrusion seat remains linear and stable during movement and avoids deflection. At the same time, the buffer pad reduces impact damage between components. The locking rod is driven by a bidirectional screw inside the connecting foot, which realizes precise locking with the pile. The auxiliary locking of the locking block and the locking seat further enhances the reliability of the overall connection. Multiple stabilization mechanisms improve the structural integrity of the device.

[0017] 3. This municipal heating pipeline construction support device, through its detachable roof structure and reinforcing cables, achieves all-weather operation protection and wind-resistant reinforcement; the roof is made of lightweight waterproof material and equipped with drainage channels, effectively preventing rain and avoiding water accumulation; the reinforcing cables are tensioned to the ground fastening flanges through a reel, forming a reliable windproof anchor; this design enables the device to adapt to complex weather conditions, extend the working time, and has good site adaptability and reusability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the installation of the welding protective frame of the present invention; Figure 4 This is a schematic diagram of the structure of the threaded sleeve of the present invention; Figure 5 This is a disassembly diagram of the connecting foot of the present invention; Figure 6 This is a schematic diagram of the structure of the reinforcing cable of the present invention; Figure 7 This is a schematic diagram of the connecting foot of the present invention; Figure 8 This is a disassembly diagram of the spiral push rod of the present invention; Figure 9 This is a schematic diagram of the method of the present invention.

[0020] In the diagram: 1. Piles; 11. Retaining plate; 12. Positioning rod; 13. Locking hole; 2. Threaded sleeve; 21. Spiral jack; 22. Extrusion seat; 23. Positioning sleeve; 24. Card seat; 25. Buffer pad; 3. Welded protective frame; 4. Connecting foot; 41. Locking rod; 42. Card block; 43. Adjusting platform; 44. Two-way screw; 5. Reinforcing cable; 51. Winding frame; 52. Guide hook; 53. Ground fastening flange; 6. Canopy structure; 7. Main body of the foundation pit. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This embodiment discloses a support device for the construction of municipal heating pipelines, according to the attached... Figure 1 To be continued Figure 9As shown, the structure includes piles 1, threaded sleeves 2, welded protective frames 3, connecting feet 4, reinforcing cables 5, and a canopy structure 6. The piles 1 are located inside the main body 7 of the foundation pit, and retaining plates 11 are installed between the piles 1 and the side walls of the main body 7 to support the side walls and prevent collapse. The threaded sleeves 2 are positioned between two opposing sets of piles 1, and both ends of the threaded sleeves 2 are threadedly connected to helical top rods 21. A compression seat 22 is rotatably connected to the end of the helical top rod 21, and the compression seat 22 fits against the inner side of the pile 1. The support length can be adjusted by rotating the helical top rod 21 to achieve lateral clamping of the piles 1. The welded protective frames 3 are detachably installed above multiple sets of piles 1, and multiple connecting feet 4 are fixedly connected to the bottom of the welded protective frames 3. The connecting feet 4 engage with locking holes 13 on the piles 1 via locking rods 41, enabling quick fixing and disassembly of the welded protective frames 3, facilitating movement and reuse.

[0023] According to the appendix Figure 4 and attached Figure 8 As shown, a positioning rod 12 is fixedly connected to the inner side of the pile 1, and a positioning sleeve 23 is provided on the pressing seat 22 to limit the positioning of the positioning rod 12. Through the cooperation of the positioning rod 12 and the positioning sleeve 23, the pressing seat 22 is kept stable during movement, preventing deflection or shaking and improving the support accuracy. Furthermore, a buffer pad 25 is provided on the side wall of the pressing seat 22. The buffer pad 25 is made of rubber material to reduce the impact when the pressing seat 22 contacts the pile 1 and avoid damage to the components from hard contact.

[0024] According to the appendix Figure 5 and attached Figure 7 As shown, a retaining seat 24 is provided on the top of the compression seat 22, and a retaining block 42 adapted to the retaining seat 24 is provided on the bottom of the connecting foot 4. When the connecting foot 4 is installed above the upright post 1, the retaining block 42 engages with the retaining seat 24 to form an auxiliary fixation, enhancing the connection stability between the welding protective frame 3 and the upright post 1. Furthermore, an adjusting platform 43 is slidably connected inside the connecting foot 4, and a locking rod 41 is fixed on the adjusting platform 43. A bidirectional screw 44 is rotatably connected to the side of the connecting foot 4. The bidirectional screw 44 is threadedly connected to the adjusting platform 43. By rotating the bidirectional screw 44, the adjusting platform 43 and the locking rod 41 are moved, realizing the insertion or disengagement of the locking rod 41 from the locking hole 13, facilitating quick installation and disassembly.

[0025] According to the appendix Figure 6As shown, a reinforcing cable 5 is installed on the welding protective frame 3. One end of the reinforcing cable 5 is fixed to the welding protective frame 3, and the other end is connected to a ground fastening flange 53. The ground fastening flange 53 is fixed to the ground by a ground insert rod, forming a windproof reinforcement for the welding protective frame 3 and preventing the frame from swaying in strong winds. Furthermore, the welding protective frame 3 is also equipped with a winding frame 51 and a guide hook 52. The winding frame 51 is used to store the reinforcing cable 5, and the guide hook 52 is used to guide and limit the reinforcing cable 5, making it easy to adjust the length and tension of the reinforcing cable 5 to adapt to different site conditions.

[0026] According to the appendix Figure 1 and attached Figure 2 As shown, a canopy structure 6 is detachably installed on the top of the welding protective frame 3. The canopy structure 6 is connected to the welding protective frame 3 via a flange, forming a rainproof protection to ensure that pipe welding operations can be carried out even in rainy weather. In particular, the canopy structure 6 is made of lightweight waterproof material, and drainage channels are provided on the edges of the canopy structure 6 to divert rainwater and prevent water accumulation from affecting construction safety.

[0027] Specifically disclosed, as shown in the attached document. Figure 3 As shown, the welded protective frame 3, after being connected to the upright pile 1 via the connecting feet 4, can be further stabilized by the reinforcing cable 5. The overall structure forms a multi-layered protection, supporting the foundation pit and providing upper working space. It is particularly important to emphasize, as shown in the attached diagram... Figure 4 As shown, the threaded connection design of the threaded sleeve 2 and the helical jack 21 allows for fine-tuning of the support force. Combined with the positioning rod 12 and the positioning sleeve 23, this ensures the stability of the support system under soil pressure. It is particularly important to emphasize, as shown in the attached diagram... Figure 5 and attached Figure 7 As shown, the adjustment mechanism of the connecting foot 4 achieves linear movement of the locking rod 41 through the bidirectional screw 44, which is easy to operate and saves installation time.

[0028] Example 1: This example uses the installation of foundation pit support and welding protection as an example, combined with the attached... Figure 1 To be continued Figure 9 Detailed workflow description: The workflow is as follows: First, step S1 is performed: excavation and pile installation of the foundation pit. Piles 1 are installed inside the foundation pit body 7, and retaining plates 11 are inserted between the piles 1 and the sidewalls of the foundation pit to form preliminary foundation pit support. Next, step S2 is performed: lateral support adjustment. Threaded sleeves 2 are installed between two opposing sets of piles 1. The spiral jack 21 is rotated to make the compression seat 22 fit against the inner side of the pile 1, while the positioning sleeve 23 slides along the positioning rod 12 to ensure stable support. Then, step S3 is performed: installation of the welded protective frame. The connecting foot 4 at the bottom of the welded protective frame 3 is placed above the piles 1. The double-ended screw 44 is rotated to insert the locking rod 41 into the locking hole 13, while the locking block 42 engages with the locking seat 24 to fix the structure. Step S4: Reinforcing cable installation. Pull out the reinforcing cable 5 from the winding frame 51, guide it through the guide hook 52, fix the ground fastening flange 53 to the ground, and tension the reinforcing cable 5 to enhance wind resistance stability. Step S5: Roof installation. Install the roof structure 6 on the top of the welded protective frame 3 through the flange to form rain protection. Step S6: Pipeline welding and insulation construction. Weld the heating pipeline and install the insulation structure below the welded protective frame 3, using the support device to avoid the impact of weather. Finally, Step S7: Disassembly and relocation. After the construction is completed, reverse the steps S3 to S5 to disassemble the welded protective frame 3 and the roof structure 6 for easy relocation to the next construction point.

[0029] Example 2: This example uses reinforcement under strong winds as an example, combined with the attached... Figure 1 To be continued Figure 9 Detailed workflow description: The workflow is as follows: Based on Example 1, the wind protection measures are strengthened as follows: First, after installing the welded protective frame 3, the reinforcing cable 5 is immediately deployed. The length of the reinforcing cable 5 is adjusted by the reel 51 to ensure that the ground fastening flange 53 is firmly inserted into the ground. The guide hook 52 is used to ensure that the cable direction is correct, forming multi-point anchoring. At the same time, the drainage channel of the roof structure 6 is checked to ensure that it is unobstructed, preventing rainwater accumulation from increasing the load. During the construction process, the wind force is monitored in real time, and the number or tension of the reinforcing cable 5 is increased if necessary to ensure that the welded protective frame 3 does not sway. After the construction is completed, the reinforcing cable 5 is loosened first before dismantling the roof structure 6 and the welded protective frame 3 to ensure safety and efficiency.

[0030] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A support device for the construction of municipal heating pipelines, characterized in that, include: Piles (1) are installed inside the main body of the foundation pit (7), and retaining plates (11) are installed between the piles (1) and the side wall of the main body of the foundation pit (7). Threaded sleeve (2), the threaded sleeve (2) is set between two opposing sets of uprights (1), and both ends of the threaded sleeve (2) are threadedly connected to a spiral top rod (21), the end of the spiral top rod (21) is rotatably connected to a pressing seat (22), the pressing seat (22) is in contact with the inner side of the upright (1); Welding protective frame (3), the welding protective frame (3) is detachably installed above multiple sets of uprights (1), and multiple sets of connecting feet (4) are fixedly connected to the bottom of the welding protective frame (3). The connecting foot (4) is engaged with the locking hole (13) on the upright (1) by the locking rod (41) to fix the welding protective frame (3).

2. The support device for municipal heating pipeline construction according to claim 1, characterized in that, A positioning rod (12) is fixedly connected to the inner side of the pile (1), and a positioning sleeve (23) is provided on the extrusion seat (22) to limit the positioning rod (12). Through the cooperation of the positioning rod (12) and the positioning sleeve (23), the extrusion seat (22) is ensured to remain stable during movement.

3. A support device for municipal heating pipeline construction according to claim 2, characterized in that, The top of the compression seat (22) is provided with a card seat (24), and the bottom of the connecting foot seat (4) is provided with a card block (42) that is adapted to the card seat (24). When the connecting foot seat (4) is installed above the upright (1), the card block (42) engages with the card seat (24) to form an auxiliary fixation.

4. A support device for municipal heating pipeline construction according to claim 3, characterized in that, The connecting foot (4) is internally slidably connected to an adjusting platform (43), and the locking rod (41) is fixed on the adjusting platform (43). The side of the connecting foot (4) is rotatably connected to a bidirectional screw (44), which is threadedly connected to the adjusting platform (43). By rotating the bidirectional screw (44), the adjusting platform (43) and the locking rod (41) are moved, thereby enabling the locking rod (41) to be inserted into or disengaged from the locking hole (13).

5. A support device for municipal heating pipeline construction according to claim 1, characterized in that, The welding protective frame (3) is provided with a reinforcing cable (5). One end of the reinforcing cable (5) is fixed to the welding protective frame (3), and the other end is connected to a ground fastening flange (53). The ground fastening flange (53) is fixed to the ground by a ground plug to form a windproof reinforcement for the welding protective frame (3).

6. A support device for municipal heating pipeline construction according to claim 5, characterized in that, The welding protective frame (3) is also equipped with a winding frame (51) and a guide hook (52). The winding frame (51) is used to store the reinforcing cable (5), and the guide hook (52) is used to guide and limit the reinforcing cable (5), so as to facilitate the adjustment of the length and tension of the reinforcing cable (5).

7. A support device for municipal heating pipeline construction according to claim 1, characterized in that, The top of the welding protective frame (3) is detachably equipped with a canopy structure (6), which is connected to the welding protective frame (3) through a flange to form rain protection.

8. A support device for municipal heating pipeline construction according to claim 7, characterized in that, The canopy structure (6) is made of lightweight waterproof material, and the edge of the canopy structure (6) is provided with drainage grooves to guide rainwater.

9. A support device for municipal heating pipeline construction according to claim 1, characterized in that, The side wall of the compression seat (22) is provided with a buffer pad (25), which is made of rubber material and is used to reduce the impact when the compression seat (22) contacts the upright pile (1).

10. A method for constructing a support device for municipal heating pipelines according to any one of claims 1-9, characterized in that, The method includes the following steps: Step S1: Excavation of the foundation pit and installation of piles: Install piles (1) inside the main body of the foundation pit (7), and set up retaining plates (11) between the piles (1) and the side wall of the foundation pit to form foundation pit support; Step S2: Lateral support adjustment: Install threaded sleeves (2) between two sets of opposing piles (1), rotate the spiral top rod (21) to make the compression seat (22) fit against the inside of the pile (1), and ensure stable support by cooperating with the positioning sleeve (23) and the positioning rod (12); Step S3: Welding protection frame installation: Place the connecting foot (4) at the bottom of the welding protection frame (3) above the upright (1), and adjust the locking rod (41) by rotating the double-acting screw (44) so ​​that the locking rod (41) is inserted into the locking hole (13). At the same time, the locking block (42) is engaged with the locking seat (24) to fix the welding protection frame (3). Step S4: Reinforcement cable installation: Pull out the reinforcement cable (5) from the winding rack (51) on the welding protection frame (3), guide it through the guide hook (52), fix the ground fastening flange (53) to the ground, and tension the reinforcement cable (5) to enhance stability; Step S5: Roof installation: Install the roof structure (6) on the top of the welded protective frame (3) through a flange to form rain protection; Step S6: Pipeline welding and insulation construction: Welding of heating pipelines and installation of insulation structure are carried out under the welding protective frame (3), and the support device is used to avoid the influence of weather. Step S7: Disassembly and relocation: After the construction is completed, reverse the operation steps S3 to S5 to disassemble the welded protective frame (3) and the roof structure (6) to facilitate relocation to the next construction point.