Adjustable mounting device and method for large-diameter pipeline

By designing an adjustable installation device, the motor-driven transmission system is used to adjust the pipe height and clamp and fix the pipe, the problem of small gap in site restrictions and docking during the installation of large-diameter pipelines is solved, and efficient and low-cost installation results are achieved.

CN120116163AInactive Publication Date: 2025-06-10广东浩维建筑有限公司
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Patent Information

Application Number
CN202510081228.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2025-06-10
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the installation of large-diameter pipelines, due to the small gap between site restrictions and pipeline docking, it is difficult for the existing technology to achieve efficient installation, resulting in extended project costs and construction periods.

Method used

An adjustable mounting device is designed, including a connecting frame, a driving mechanism and a clamping mechanism. The driving wheel and the driven wheel are driven to rotate through the motor, and the transmission block and the fixing seat are driven to slide up and down, so as to adjust the pipe height and clamp and fix the pipe.

Benefits of technology

The height adjustment and fixing clamping of large-diameter pipes are realized, which reduces labor costs, improves installation efficiency, and reduces the cost of use of construction machinery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides an adjustable mounting device and method for a large-diameter pipeline, and relates to the technical field of large-diameter pipeline mounting. According to the adjustable mounting device for the large-diameter pipeline and the mounting method, connecting frames are included, a driving mechanism is arranged on one sides of the connecting frames, a clamping mechanism is arranged on one side of the driving mechanism, top plates are fixedly connected to the top ends of the connecting frames, first motors are fixedly connected to the top ends of the top plates, and the first motors are fixedly connected to the top ends of the top plates. The output ends of the multiple first motors are fixedly connected with driving wheels, the output ends of the multiple first motors penetrate through a top plate, and one sides of the outer walls of the multiple driving wheels are engaged with first driven wheels. According to the adjustable mounting device and method for the large-diameter pipeline, the height of the pipeline can be adjusted in a small range, the pipeline can be fixed when work such as pipeline welding is carried out, and the problems that pipeline mounting is difficult, and the consumed labor cost is too high are solved.
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Description

Technical Field

[0001] The invention relates to the technical field of large-diameter pipeline installation, and in particular to an adjustable installation device and an installation method for large-diameter pipelines. Background Art

[0002] Municipal water supply and drainage pipeline engineering is not only a symbol of urban modernization, but also an important guarantee for the normal operation of the city and the normal work and life of residents. In addition, the construction of modern urban underground facilities has been greatly developed, such as subways, underground garages, etc. At the same time, with the development of society and population, the scale of project engineering has gradually increased, and the diameter of the pipes used has become larger and larger. Often due to site restrictions, normal lifting equipment cannot be used for lifting, and it is troublesome to adjust the small gap between the pipes, which consumes the cost of engineering machinery and manpower, and is troublesome to use.

[0003] In the prior art, when installing large diameter pipelines, due to site limitations, when some large pipelines are docked and the gap is small, the use of engineering machinery will cause high costs and materials, affecting the cost of the entire project, and it will take a lot of time, affecting the construction period, thus resulting in a waste of manpower and materials. Therefore, those skilled in the art provide an adjustable installation device and installation method for large diameter pipelines to solve the problems raised in the above background technology. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides an adjustable installation device and installation method for large-diameter pipes, which can adjust the height of the pipe in a small range and can fix the pipe when work such as pipe welding is in progress, thereby solving the problems of difficult pipe installation and high labor costs.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an adjustable installation device and installation method for large diameter pipes, including a connecting frame, a driving mechanism is provided on one side of multiple connecting frames, and a clamping mechanism is provided on one side of the driving mechanism, the top ends of multiple connecting frames are fixedly connected to top plates, the top ends of multiple top plates are fixedly connected to first motors, the output ends of multiple first motors are fixedly connected to driving wheels, and the output ends of multiple first motors penetrate the top plates, one side of the outer walls of multiple driving wheels is meshed with a first driven wheel, the outer walls of multiple first driven wheels are transmission-connected with a transmission belt, the inner walls of multiple transmission belts are transmission-connected with a second driven wheel at one end away from the driving wheel, and the bottom ends of multiple driving wheels and second driven wheels are fixedly connected with a first threaded rod.

[0008] Through the above technical solution, by starting the first motor, the driving wheel and the first driven wheel are driven to rotate, so that the first driven wheel drives the transmission belt to rotate, enabling the second driven wheel to rotate in the same direction as the driving wheel, and thus enabling the first threaded rod to rotate to drive the transmission block to slide up and down.

[0009] Preferably, transmission blocks are threadedly connected to the outer walls of multiple said first threaded rods, and limiting rods penetrate through symmetric positions on both sides of the outer walls of multiple said transmission blocks, and both ends of the outer walls of the two limiting rods penetrate through limiting seats;

[0010] Through the above technical solution, by the up and down sliding of the transmission block, multiple fixed seats are driven to slide up and down, thereby adjusting the height of the device, enabling a large-diameter pipeline to enter the device for subsequent operations through the height adjustment of the fixed seats.

[0011] Preferably, fixed seats are fixedly connected to one sides of multiple said transmission blocks, and two connecting rods are fixedly connected to one sides of multiple said fixed seats;

[0012] Through the above technical solution, by providing the connecting rods, the device is more tightly connected.

[0013] Preferably, the driving mechanism includes a transmission box, one sides of multiple said transmission boxes are connected to the fixed seats through connecting rods, the centers of the inner walls of multiple said transmission boxes are rotatably connected with second threaded rods, and one ends of multiple said second threaded rods are fixedly connected to a second motor and penetrate through the transmission box;

[0014] Through the above technical solution, by starting the second motor to drive the driving gear to rotate, the driven gear is driven to rotate through the driving gear and the toothed belt.

[0015] Preferably, driving gears are fixedly connected to the output ends of multiple said second motors, driven gears are transmission-connected to the outer walls of multiple said driving gears through toothed belts, and second threaded rods are fixedly connected to the bottoms of multiple said driving gears and driven gears;

[0016] Through the above technical solution, by providing the driving gear and the driven gear, the symmetric clamping mechanisms mounted on the second threaded rods can slide up and down through the sliding blocks, thereby fixedly clamping the pipeline.

[0017] Preferably, sliding blocks are threadedly connected to the outer walls of multiple said second threaded rods, telescopic rods penetrate through the tops of multiple said second threaded rods, a sliding rod is slidably connected between multiple said telescopic rods, and fixed buckles are fixedly connected to the tops of multiple said telescopic rods;

[0018] Through the above technical solution, by sliding the telescopic rod and the sliding rod, the distance between the fixed seats can be adjusted according to the width of the large-diameter pipe, so as to better adapt to the pipe.

[0019] Preferably, the clamping mechanism includes a fixed block, one side of the fixed block is fixedly connected with a connection terminal, and the sides of the plurality of connection terminals away from the fixed block are connected to a rotating seat;

[0020] Through the above technical solution, by setting the fixed block, the clamping mechanism can be fixed.

[0021] Preferably, one side of each of the plurality of rotating seats is rotatably connected with a rotating block, one side of the outer wall of each of the plurality of rotating blocks is rotatably connected with a rotating shaft, one side of the outer wall of each of the plurality of rotating shafts is rotatably connected with a rotating arm, one end of each of the plurality of rotating arms away from the rotating shaft is rotatably connected with a connecting arm, and one end of each of the plurality of connecting arms away from the rotating arm is rotatably connected with a clamping block;

[0022] Through the above technical solution, when the sliding block slides up and down, the fixed block and the connection terminal are driven to slide. When clamping the pipe, the pipe drives the rotating arm to rotate, thereby driving the connecting arm and the clamping block to extend, so as to clamp the pipe.

[0023] Preferably, a spring rod is rotatably connected to the inner wall of each of the plurality of connecting arms, and one end of each of the spring rods away from the connecting arm is connected to the rotating block.

[0024] Through the above technical solution, by setting the spring rod, the device is tightened by the spring rod, so that the connecting arm can contract, thereby fixing the pipe more firmly.

[0025] Preferably, S1: First, start the first motor to drive the driving wheel and the first driven wheel to rotate. Then, the first driven wheel drives the transmission belt to rotate, so that the second driven wheel can rotate in the same direction as the driving wheel, thereby enabling the first threaded rod to rotate and drive the transmission block to slide up and down. Through the up and down sliding of the transmission block, drive a plurality of fixed seats to slide up and down, thereby adjusting the height of the device, so that the large-diameter pipe can enter the device for subsequent operations through the height adjustment of the fixed seats.

[0026] S2: Then, by sliding the telescopic rod and the sliding rod, the distance between the fixed seats can be adjusted according to the width of the large-diameter pipe. Start the second motor to drive the driving gear to rotate, and then drive the driven gear to rotate through the driving gear and the toothed belt, so that the symmetric clamping mechanisms installed on the second threaded rod can slide up and down through the sliding block, thereby fixing and clamping the pipe.

[0027] S3: When the sliding block slides up and down, it drives the fixed block and the connecting terminal to slide. When clamping the pipeline, the pipeline drives the rotating arm to rotate, which drives the connecting arm and the clamping block to extend to clamp the pipeline. Through the tension of the spring rod, the connecting arm can contract, making the fixation of the pipeline more stable.

[0028] Working principle: First, start the first motor to drive the driving wheel and the first driven wheel to rotate. Then, the first driven wheel drives the transmission belt to rotate, enabling the second driven wheel to rotate in the same direction as the driving wheel. As a result, the first threaded rod rotates to drive the transmission block to slide up and down. Through the up and down sliding of the transmission block, multiple fixed seats are driven to slide up and down, thereby adjusting the height of the device. This allows large-diameter pipelines to enter the device for subsequent operations through the height adjustment of the fixed seats. Then, by sliding the telescopic rod and the sliding rod, the distance between the fixed seats can be adjusted according to the width of the large-diameter pipeline. Start the second motor to drive the driving gear to rotate. Then, through the driving gear and the toothed belt, the driven gear is driven to rotate, enabling the symmetrical clamping mechanisms mounted on the second threaded rod to slide up and down through the sliding block to clamp and fix the pipeline. When the sliding block slides up and down, it drives the fixed block and the connecting terminal to slide. When clamping the pipeline, the pipeline drives the rotating arm to rotate, which drives the connecting arm and the clamping block to extend to clamp the pipeline. Through the tension of the spring rod, the connecting arm can contract, making the fixation of the pipeline more stable.

[0029] (III) Beneficial effects

[0030] The present invention provides an adjustable installation device and installation method for large-diameter pipelines, with the following beneficial effects:

[0031] 1. The present invention provides an adjustable installation device and installation method for large-diameter pipelines. By starting the first motor, the driving wheel and the first driven wheel are driven to rotate. Then, the first driven wheel drives the transmission belt to rotate, enabling the second driven wheel to rotate in the same direction as the driving wheel. As a result, the first threaded rod rotates to drive the transmission block to slide up and down. Through the up and down sliding of the transmission block, multiple fixed seats are driven to slide up and down, thereby adjusting the height of the device. This allows large-diameter pipelines to enter the device for subsequent operations through the height adjustment of the fixed seats.

[0032] 2. The present invention provides an adjustable installation device and installation method for large-diameter pipelines. By sliding the telescopic rod and the sliding rod, the distance between the fixed seats can be adjusted according to the width of the large-diameter pipeline. By starting the second motor to drive the driving gear to rotate, the driven gear is driven to rotate through the driving gear and the toothed belt, so that the symmetrical clamping mechanisms mounted on the second threaded rod can slide up and down through the sliding blocks, thereby fixing and clamping the pipeline.

[0033] 3. The present invention provides an adjustable installation device and installation method for large-diameter pipelines. When the sliding block slides up and down, it drives the fixed block and the connection terminal to slide. When clamping the pipeline, the pipeline drives the rotating arm to rotate, thereby driving the connecting arm and the clamping block to extend to clamp the pipeline. Through the tension of the spring rod, the connecting arm can contract, so as to fix the pipeline more firmly. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is an isometric view of the present invention;

[0035] Figure 2 is a schematic diagram of the multi-angle three-dimensional structure of the present invention;

[0036] Figure 3 is a schematic diagram of the connection structure of the transmission box of the present invention;

[0037] Figure 4 is a schematic diagram of the connection structure of the connecting frame of the present invention;

[0038] Figure 5 is a schematic diagram of the connection structure of the telescopic rod of the present invention;

[0039] Figure 6 is a schematic diagram of the connection structure of the sliding block of the present invention;

[0040] Figure 7 is a schematic diagram of the connection structure of the clamping mechanism of the present invention.

[0041] Among them, 1. connecting frame; 101. top plate; 102. first motor; 103. driving wheel; 104. first driven wheel; 105. transmission belt; 106. second driven wheel; 107. first threaded rod; 108. transmission block; 109. limit seat; 110. limit rod; 111. fixed seat; 112. connecting rod; 2. driving mechanism; 201. transmission box; 202. second threaded rod; 203. second motor; 204. telescopic rod; 205. sliding rod; 206. fixed buckle; 207. sliding block; 208. driving gear; 209. driven gear; 3. clamping mechanism; 301. fixed block; 302. connecting terminal; 303. rotating seat; 304. rotating shaft; 305. rotating arm; 306. connecting arm; 307. clamping block; 308. spring rod; 309. rotating block. Detailed implementation mode

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. In the description of this application, it should be noted that the terms used here are only for the purpose of describing specific implementation modes, and are not intended to limit the exemplary implementation modes of this application. For the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0043] Embodiment 1:

[0044] As Figures 1-5As shown in the figure, an adjustable installation device and installation method for large-diameter pipelines are provided in an embodiment of the present invention, including a connecting frame 1. A driving mechanism 2 is provided on one side of multiple connecting frames 1, and a clamping mechanism 3 is provided on one side of the driving mechanism 2. The tops of multiple connecting frames 1 are fixedly connected with top plates 101, the tops of multiple top plates 101 are fixedly connected with first motors 102, the output ends of multiple first motors 102 are fixedly connected with driving wheels 103, and the output ends of multiple first motors 102 penetrate through the top plates 101. A first driven wheel 104 is meshed on one side of the outer wall of multiple driving wheels 103. The outer walls of multiple first driven wheels 104 are all drivingly connected with transmission belts 105. The inner walls of multiple transmission belts 105 are drivingly connected with second driven wheels 106 at the ends far from the driving wheels 103. The bottoms of multiple driving wheels 103 and second driven wheels 106 are all fixedly connected with first threaded rods 107. By starting the first motor 102, the driving wheel 103 and the first driven wheel 104 are driven to rotate, so that the first driven wheel 104 drives the transmission belt 105 to rotate, enabling the second driven wheel 106 to rotate in the same direction as the driving wheel 103, so that the first threaded rod 107 can rotate to drive the transmission block 108 to slide up and down. The outer walls of multiple first threaded rods 107 are threadedly connected with transmission blocks 108. The two sides of the outer walls of multiple transmission blocks 108 are symmetrically penetrated by limit rods 110. The two ends of the outer walls of the two limit rods 110 penetrate through limit seats 109. By the up and down sliding of the transmission block 108, multiple fixing seats 111 are driven to slide up and down, thereby adjusting the height of the device, so that the large-diameter pipeline can enter the device for subsequent operations through the height adjustment of the fixing seat 111. One side of multiple transmission blocks 108 is fixedly connected with a fixing seat 111. One side of multiple fixing seats 111 is fixedly connected with two connecting rods 112. By setting the connecting rods 112, the device can be more tightly connected. The driving mechanism 2 includes a transmission box 201. One side of multiple transmission boxes 201 is connected to the fixing seat 111 through the connecting rod 112. The central positions of the inner walls of multiple transmission boxes 201 are rotatably connected with second threaded rods 202. One end of multiple second threaded rods 202 is fixedly connected with a second motor 203 and penetrates through the transmission box 201. By starting the second motor 203 to drive the driving gear 208 to rotate, the driven gear 209 is driven to rotate through the driving gear 208 and the toothed belt. The output ends of multiple second motors 203 are fixedly connected with driving gears 208. The outer walls of multiple driving gears 208 are drivingly connected with driven gears 209 through toothed belts. The bottoms of multiple driving gears 208 and driven gears 209 are all fixedly connected with second threaded rods 202. By setting the driving gear 208 and the driven gear 209, the symmetric clamping mechanisms 3 installed on the second threaded rods 202 can slide up and down through the sliding blocks 207, so as to fixedly clamp the pipeline. The outer walls of multiple second threaded rods 202 are all threadedly connected with sliding blocks 207.The tops of multiple second threaded rods 202 are all penetrated by telescopic rods 204. A sliding rod 205 is slidably connected between the multiple telescopic rods 204. The tops of the multiple telescopic rods 204 are all fixedly connected with fixed buckles 206. By sliding the telescopic rods 204 and the sliding rod 205, the distance between the fixed seats 111 can be adjusted according to the width of the large-diameter pipeline, so as to better adapt to the pipeline. The clamping mechanism 3 includes a fixed block 301. One side of the fixed block 301 is fixedly connected with a connection terminal 302. The sides of the multiple connection terminals 302 away from the fixed block 301 are connected to a rotating seat 303. By setting the fixed block 301, the clamping mechanism 3 can be fixed. One side of the multiple rotating seats 303 is rotatably connected with a rotating block 309. One outer side of the multiple rotating blocks 309 is rotatably connected with a rotating shaft 304. One outer side of the multiple rotating shafts 304 is rotatably connected with a rotating arm 305. One end of the multiple rotating arms 305 away from the rotating shaft 304 is rotatably connected with a connecting arm 306. One end of the multiple connecting arms 306 away from the rotating arm 305 is rotatably connected with a clamping block 307. When the sliding block 207 slides up and down, the fixed block 301 and the connection terminal 302 are driven to slide. When clamping the pipeline, the pipeline drives the rotating arm 305 to rotate, thereby driving the connecting arm 306 and the clamping block 307 to extend to clamp the pipeline. The inner walls of the multiple connecting arms 306 are all rotatably connected with spring rods 308. One ends of the multiple spring rods 308 away from the connecting arms 306 are connected to the rotating blocks 309. By setting the spring rods 308, the device is tightened by the spring rods 308, so that the connecting arm 306 can contract, thereby fixing the pipeline more firmly.

[0045] Embodiment 2: An adjustable installation device and installation method for large-diameter pipelines. S1 First, start the first motor 102 to drive the driving wheel 103 and the first driven wheel 104 to rotate. Then, the first driven wheel 104 drives the transmission belt 105 to rotate, so that the second driven wheel 106 can rotate in the same direction as the driving wheel 103, and then the first threaded rod 107 can rotate to drive the transmission block 108 to slide up and down. Through the up and down sliding of the transmission block 108, multiple fixed seats 111 are driven to slide up and down, thereby adjusting the height of the device, so that the large-diameter pipeline can enter the device for subsequent operations through the height adjustment of the fixed seats 111.

[0046] S2: Then, by sliding the telescopic rod 204 and the slide bar 205, the distance between the fixed seats 111 can be adjusted according to the width of the large-diameter pipeline. By starting the second motor 203 to drive the driving gear 208 to rotate, the driven gear 209 is driven to rotate through the driving gear 208 and the toothed belt, so that the symmetrical clamping mechanisms 3 mounted on the second threaded rod 202 can slide up and down through the sliding blocks 207, thereby fixing and clamping the pipeline.

[0047] S3: When the sliding block 207 slides up and down, it drives the fixed block 301 and the connection terminal 302 to slide. When clamping the pipeline, the pipeline drives the rotating arm 305 to rotate, thereby driving the connecting arm 306 and the clamping block 307 to extend, so as to clamp the pipeline. Through the tension of the spring rod 308, the connecting arm 306 can contract, thereby fixing the pipeline more firmly.

[0048] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable installation device and installation method for a large diameter pipeline, comprising a connecting frame (1), characterized in that: A driving mechanism (2) is provided on one side of the plurality of connecting frames (1), and a clamping mechanism (3) is provided on one side of the driving mechanism (2); the top ends of the plurality of connecting frames (1) are fixedly connected to a top plate (101); the top ends of the plurality of top plates (101) are fixedly connected to a first motor (102); the output ends of the plurality of first motors (102) are fixedly connected to a driving wheel (103); and the output ends of the plurality of first motors (102) penetrate the top plate (101); one side of the outer wall of the plurality of driving wheels (103) is meshed with a first driven wheel (104); the outer walls of the plurality of first driven wheels (104) are transmission-connected to a transmission belt (105); the inner walls of the plurality of transmission belts (105) are transmission-connected to a second driven wheel (106) at one end away from the driving wheel (103); and the bottom ends of the plurality of driving wheels (103) and the second driven wheel (106) are fixedly connected to a first driven wheel (103). A threaded rod (107), the outer walls of the plurality of first threaded rods (107) are threadedly connected to transmission blocks (108), the outer walls of the plurality of transmission blocks (108) are symmetrically penetrated by limit rods (110), the outer walls of the two limit rods (110) are penetrated by limit seats (109) at both ends, one side of the plurality of transmission blocks (108) is fixedly connected to a fixed seat (111), one side of the plurality of fixed seats (111) is fixedly connected to two connecting rods (112), the driving mechanism (2) comprises a transmission box (201), one side of the plurality of transmission boxes (201) is connected to the fixed seat (111) through the connecting rod (112), the inner walls of the plurality of transmission boxes (201) are rotatably connected to second threaded rods (202) at the center, one end of the plurality of second threaded rods (202) is fixedly connected to a second motor (203) and penetrates the transmission box (201).

2. The adjustable installation device and installation method for large diameter pipelines according to claim 1, characterized in that: The output ends of the plurality of second motors (203) are fixedly connected to driving gears (208), the outer walls of the plurality of driving gears (208) are connected to driven gears (209) via toothed belt transmission, and the bottom ends of the plurality of driving gears (208) and driven gears (209) are fixedly connected to second threaded rods (202).

3. The adjustable installation device and installation method for large diameter pipelines according to claim 1, characterized in that: The outer walls of the plurality of second threaded rods (202) are threadedly connected with sliding blocks (207), the top ends of the plurality of second threaded rods (202) are penetrated by telescopic rods (204), sliding rods (205) are slidably connected between the plurality of telescopic rods (204), and the top ends of the plurality of telescopic rods (204) are fixedly connected with fixing buckles (206).

4. The adjustable installation device and installation method for large diameter pipelines according to claim 1, characterized in that: The clamping mechanism (3) comprises a fixed block (301), one side of the fixed block (301) is fixedly connected with a connecting terminal (302), and a side of a plurality of connecting terminals (302) away from the fixed block (301) is connected to a rotating seat (303).

5. The adjustable installation device and installation method for large diameter pipelines according to claim 4, characterized in that: One side of the plurality of rotating seats (303) is rotatably connected to a rotating block (309), one side of the outer wall of the plurality of rotating blocks (309) is rotatably connected to a rotating shaft (304), one side of the outer wall of the plurality of rotating shafts (304) is rotatably connected to a rotating arm (305), one end of the plurality of rotating arms (305) away from the rotating shaft (304) is rotatably connected to a connecting arm (306), and one end of the plurality of connecting arms (306) away from the rotating arm (305) is rotatably connected to a clamping block (307).

6. The adjustable installation device and installation method for large diameter pipelines according to claim 5, characterized in that: The inner walls of the plurality of connecting arms (306) are all rotatably connected with spring rods (308), and one end of the plurality of spring rods (308) away from the connecting arms (306) is connected to a rotating block (309).

7. The adjustable installation device and installation method for large diameter pipelines according to claim 1, characterized in that: Step 1: First, the first motor (102) is started to drive the driving wheel (103) and the first driven wheel (104) to rotate, so that the first driven wheel (104) drives the transmission belt (105) to rotate, so that the second driven wheel (106) can rotate in the same direction as the driving wheel (103), so that the first threaded rod (107) can rotate to drive the transmission block (108) to slide up and down, and through the up and down sliding of the transmission block (108), the multiple fixing seats (111) can be driven to slide up and down, so as to adjust the height of the device, so that the large diameter pipeline can pass through the height adjustment of the fixing seat (111) and enter the device for subsequent operations; Step 2: Then, the spacing between the fixing seats (111) is adjusted according to the width of the large-diameter pipe by sliding the telescopic rod (204) and the sliding rod (205), and the driving gear (208) is driven to rotate by starting the second motor (203), thereby driving the driven gear (209) to rotate through the driving gear (208) and the toothed belt, so that the symmetrical clamping mechanism (3) installed on the second threaded rod (202) can slide up and down through the sliding block (207), thereby fixing and clamping the pipe; Step 3: When the sliding block (207) slides up and down, it drives the fixed block (301) and the connecting terminal (302) to slide. When the pipeline is clamped, the pipeline drives the rotating arm (305) to rotate, thereby driving the connecting arm (306) and the clamping block (307) to extend to clamp the pipeline. By tightening the spring rod (308), the connecting arm (306) is contracted, thereby fixing the pipeline more firmly.