Municipal pipeline construction and installation structure
By using a hydraulically driven moving block and support shaft in conjunction with a square slide rail and threaded rod alignment assembly, the problem of precise alignment of flange connections in traditional municipal pipeline installation is solved, improving construction efficiency and sealing performance, and reducing labor intensity and equipment costs.
Patent Information
- Application Number
- CN202522714835.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-22
AI Technical Summary
In the traditional municipal pipeline installation process, flange connections present problems such as difficulty in precise alignment, high labor intensity, low construction efficiency, and poor equipment flexibility.
The alignment assembly, which uses a hydraulically driven moving block and support shaft in conjunction with a square slide rail and threaded rod, achieves precise alignment and stable lifting of the pipe flange. With the assistance of hydraulic control and a return spring, manual operation is simplified, and alignment accuracy and construction efficiency are improved.
It achieves high-precision alignment of flange connections, reduces labor intensity, improves construction efficiency and sealing performance, adapts to complex construction scenarios, and reduces equipment costs.
Smart Images

Figure CN224942316U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline installation technology, specifically to a structure for the construction and installation of municipal pipelines. Background Technology
[0002] Municipal pipelines, as a core component of urban infrastructure, are widely used in key areas such as water supply and drainage, gas transmission, heating and ventilation, and communication cable protection. Their installation quality directly affects the stability of urban operations, the convenience of residents' lives, and the safety of the ecological environment. With the rapid advancement of urbanization, the scale of municipal pipeline construction continues to expand, and the mileage of pipelines is constantly increasing. At the same time, higher requirements are placed on the precision, sealing, construction efficiency, and operational safety of pipeline installation.
[0003] In municipal pipeline construction, flange connection is one of the core methods of pipeline splicing. The core process requirement is to precisely align the flanges of the two pipeline sections to be connected (ensuring that all bolt holes on the flanges correspond one-to-one), and then fix them by bolting and tightening, thereby ensuring the structural stability of the pipeline connection and the sealing of the medium transport. However, in the traditional municipal pipeline installation process, due to technical conditions and equipment limitations, the flange connection process has long suffered from many pain points.
[0004] In traditional construction, the handling and positioning of pipelines mainly rely on manual lifting, crane hoisting, or hand-operated hoist traction. Manual lifting requires multiple workers to work together, which is extremely labor-intensive and makes it difficult to accurately control the position of the pipeline, which can easily lead to pipeline tilting or collisions. Large equipment such as cranes are limited by the construction site (such as narrow urban streets or areas with dense underground pipe networks), have poor operational flexibility, and are expensive, making them unsuitable for complex construction scenarios. Utility Model Content
[0005] The purpose of this utility model is to provide a structure for the construction and installation of municipal pipelines to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a municipal pipeline construction and installation structure, including a base, an L-shaped support fixedly connected to the upper middle part of the base, a hydraulic cylinder fixedly installed at the lower upper part of the support, a moving block fixedly connected to the piston end of the hydraulic cylinder, a horizontally arranged square slide rail fixedly connected to the upper side wall of the moving block, and a horizontally arranged support shaft fixedly connected to the lower side wall of the moving block.
[0007] The square slide rail is provided with two symmetrically arranged alignment components. The alignment component includes a square slider that is movably connected to the square slide rail. The lower end of the square slider is fixedly connected to a telescopic rod. The lower end of the telescopic rod is connected to an integrally formed threaded rod, which is horizontally arranged. An alignment sleeve that is adapted to the threaded hole of the pipe flange is threadedly connected to the threaded rod.
[0008] Preferably, a return spring is provided on the upper telescopic joint of the telescopic rod, and the upper and lower ends of the return spring are fixedly connected to the lower end of the square slider and the upper end of the lower telescopic joint of the telescopic rod, respectively.
[0009] Preferably, the upper and lower ends of the L-shaped structural bracket are fixedly connected to a guide shaft, and the guide shaft is movably connected to the moving block.
[0010] Preferably, the base is equipped with self-locking casters at the four corners of its lower end, and a push rod is provided on the base.
[0011] Preferably, the base is equipped with a mobile power supply that is electrically connected to the hydraulic cylinder, and the hydraulic cylinder and the mobile power supply are connected to an external controller.
[0012] Preferably, the base has a notch located at the lower end of the movable block.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. Significantly improves flange alignment accuracy and ensures connection sealing: The square slider can be flexibly adjusted horizontally along the square slide rail. The alignment sleeve on the threaded rod can be disassembled and replaced to fit the threaded holes of the pipe flange. After insertion, it can forcibly calibrate the coaxiality of all bolt holes, completely solving the deviation problem caused by traditional manual visual alignment. After the flange is accurately fitted, the bolts can be smoothly inserted and evenly tightened, avoiding the problem of uneven stress on the flange surface caused by alignment deviation.
[0015] 2. Reduced labor intensity and improved construction efficiency: The support shaft can be directly inserted into the pipe for stable lifting. The hydraulic cylinder is driven by an external controller, eliminating the need for manual lifting and prying of heavy pipes. A single worker can complete the pipe lifting and relocation operations, significantly reducing manpower input. The tension of the return spring automatically pulls the alignment sleeve closer to the flange, and with the fine adjustment of the pipe, multiple sets of bolt holes can be aligned synchronously. Compared with the traditional method of repeated manual calibration, this effectively speeds up the project progress. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0018] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0019] Figure 4 This is a schematic diagram of the alignment component structure of this utility model.
[0020] In the diagram: 1. Base; 11. Bracket; 12. Push rod; 13. Power bank; 14. Notch; 15. Self-locking caster wheel; 2. Hydraulic cylinder; 3. Moving block; 4. Square slide rail; 5. Support shaft; 6. Alignment assembly; 61. Square slider; 62. Telescopic rod; 621. Threaded rod; 63. Return spring; 64. Alignment sleeve; 7. Guide shaft. Detailed Implementation
[0021] Please see Figure 1-4 This utility model provides a technical solution: a municipal pipeline construction and installation structure, including a base 1, an L-shaped support 11 fixedly connected to the upper middle part of the base 1, a hydraulic cylinder 2 fixedly installed at the lower upper part of the support 11, a moving block 3 fixedly connected to the piston end of the hydraulic cylinder 2, a horizontally arranged square slide rail 4 fixedly connected to the upper side wall of the moving block 3, and a horizontally arranged support shaft 5 fixedly connected to the lower side wall of the moving block 3; two symmetrically arranged alignment components 6 are provided on the square slide rail 4, the alignment component 6 includes a square slider 61 movably connected to the square slide rail 4, a telescopic rod 62 fixedly connected to the lower end of the square slider 61, a threaded rod 621 integrally formed at the lower end of the telescopic rod 62, and the threaded rod 621 is horizontally arranged, and an alignment sleeve 64 adapted to the threaded hole of the pipe flange is threadedly connected to the threaded rod 621.
[0022] Furthermore, a return spring 63 is provided on the upper telescopic joint of the telescopic rod 62. The upper and lower ends of the return spring 63 are fixedly connected to the lower end of the square slider 61 and the upper end of the lower telescopic joint of the telescopic rod 62, respectively. The return spring 63 facilitates the pulling of the lower telescopic joint of the telescopic rod 62, and in conjunction with the movement of the square slider 61, the alignment sleeve 64 is aligned with the flange threaded hole and inserted.
[0023] Furthermore, the upper and lower ends of the L-shaped support bracket 11 are fixedly connected to guide shafts 7, and the guide shafts 7 are movably connected to the movable block 3. The guide shafts 7 ensure the stability of the support shaft 5 during the lifting and positioning of the pipeline.
[0024] Furthermore, self-locking casters 15 are installed at the four corners of the lower end of the base 1, and a push rod 12 is provided on the base 1. The push rod 12 facilitates the movement of the base 1 and also facilitates the transfer of the pipeline after installation.
[0025] Furthermore, the base 1 is equipped with a mobile power supply that is electrically connected to the hydraulic cylinder 2, and the hydraulic cylinder 2 and the mobile power supply are connected to an external controller.
[0026] Furthermore, the base 1 is provided with a notch 14 located at the lower end of the movable block 3. The notch 14 is used for inserting the pipe placed on the ground through the support shaft 5 when the hydraulic cylinder 2 drives the movable block 3 to move down, and then lifting the two pipes for alignment and installation.
[0027] Specifically, firstly, the hydraulic cylinder 2 is activated by the external controller. The piston end of the hydraulic cylinder 2 drives the moving block 3 to move downward. At the same time, the notch 14 on the base provides space for the moving block to move downward. The push rod 12 pushes the support shaft 5 at the lower end of the side wall of the moving block 3 into the first section of pipe placed on the ground. At this time, the return spring 63 is in the contracted state and does not affect the first section of pipe from entering the support shaft 5. Then, the hydraulic cylinder 2 is controlled to contract, driving the moving block 3 and the pipe on the support shaft 5 to rise synchronously. Then, the first section of pipe is pushed to slide on the support shaft 5. The above steps are repeated to insert the second section of pipe into the support shaft 5. At the same time, the support shaft 5 lifts the two sections of pipe. The extension and retraction of the hydraulic cylinder 2 is adjusted so that the flanges of the two sections of pipe are at the same horizontal height and initially aligned.
[0028] Then, by utilizing the telescopic characteristics of the telescopic rod 62 and the tension of the return spring 63, the threaded rod 621 at the lower end of the telescopic rod 62 is pulled closer to the pipe flange. At the same time, the position of the square slider 61 is finely adjusted and the two pipe sections are rotated so that the alignment sleeves 64 of the two alignment components 6 are inserted into the corresponding threaded holes of the two pipe flanges, thereby achieving precise alignment of all flange threaded holes.
[0029] After confirming that the flanges fit perfectly, the workers will pass the bolts through the aligned flange threaded holes and tighten them with nuts to complete the connection and installation of the two pipe sections.
[0030] Finally, after the pipeline installation is completed, the sliding alignment component 6 is used to detach the alignment sleeve 64 from the two sections of pipeline. The alignment sleeve 64 is reset under the tension of the return spring 63. Then, the hydraulic cylinder 2 is controlled to drive the moving block 3 and the support shaft 5 to move down, so that the support shaft is detached from the pipeline. The self-locking caster 15 is released, and the push rod 12 is used to push the equipment to the next construction position or to transfer it to the designated storage area.
Claims
1. A municipal pipeline construction and installation structure, including a base (1), characterized in that: An L-shaped support bracket (11) is fixedly connected to the upper middle part of the base (1). A hydraulic cylinder (2) is fixedly installed at the lower upper part of the support bracket (11). A moving block (3) is fixedly connected to the piston end of the hydraulic cylinder (2). A horizontally arranged square slide rail (4) is fixedly connected to the upper side wall of the moving block (3). A horizontally arranged support shaft (5) is fixedly connected to the lower side wall of the moving block (3). The square slide rail (4) is provided with two symmetrically arranged alignment components (6). The alignment component (6) includes a square slider (61) that is movably connected to the square slide rail (4). A telescopic rod (62) is fixedly connected to the lower end of the square slider (61). A threaded rod (621) with an integrally formed structure is connected to the lower end of the telescopic rod (62). The threaded rod (621) is horizontally arranged. An alignment sleeve (64) that is adapted to the threaded hole of the pipe flange is threadedly connected to the threaded rod (621).
2. The municipal pipeline construction and installation structure according to claim 1, characterized in that: The upper telescopic joint of the telescopic rod (62) is provided with a return spring (63), and the upper and lower ends of the return spring (63) are fixedly connected to the lower end of the square slider (61) and the upper end of the lower telescopic joint of the telescopic rod (62), respectively.
3. The municipal pipeline construction and installation structure according to claim 1, characterized in that: The upper and lower ends of the L-shaped structural bracket (11) are fixedly connected to a guide shaft (7), and the guide shaft (7) is movably connected to the moving block (3).
4. The municipal pipeline construction and installation structure according to claim 1, characterized in that: The base (1) is equipped with self-locking casters (15) at the four corners of its lower end, and a push rod (12) is provided on the base (1).
5. The municipal pipeline construction and installation structure according to claim 1, characterized in that: The base (1) is equipped with a mobile power supply that is electrically connected to the hydraulic cylinder (2), and the hydraulic cylinder (2) and the mobile power supply are connected to an external controller.
6. The municipal pipeline construction and installation structure according to claim 1, characterized in that: The base (1) has a notch (14) located at the lower end of the movable block (3).
