Installation structure and installation method for pipeline construction

Abstract

The invention provides an installation structure and an installation method for pipeline construction, and relates to the technical field of pipeline installation. The installation structure for pipeline construction comprises a construction shell, wherein bases are respectively arranged at the front and rear ends of the lower part of the construction shell, and centering mechanisms are respectively arranged at the front and rear ends of the construction shell, and a construction cavity is arranged inside the construction shell, and docking ports are penetrated through the front and rear ends of the middle part of the construction shell, and the construction cavity is connected with the docking ports, and the docking ports at the front and rear ends are arranged one by one with the centering mechanisms at the front and rear ends, and a supporting positioning mechanism is slidably installed at the upper end of the base, and the supporting positioning mechanism and the centering mechanism work together to make the central axis of the pipeline to be constructed and the center of the docking port be in the same straight line, and the setting of the centering mechanism facilitates the alignment and adjustment of the position of the pipeline to be spliced ​​close to the splicing port even if the two pipelines to be spliced ​​shake during the docking process, thereby improving the docking accuracy of the two pipelines to be spliced, and the alignment process can control the centering mechanism to work, which saves time and effort.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline installation, and in particular to an installation structure and an installation method for pipeline construction. Background Art

[0002] A pipeline is a device used to transport gas, liquid or fluid with solid particles. Due to its unique characteristics, pipelines are widely used in many industries and fields. Pipeline construction usually involves splicing multiple shorter pipes into a longer pipe to meet personalized needs. In the process of pipeline splicing construction, welding, flange connection and socket connection are generally used for splicing. The socket connection is a pipe with a socket at one end, which is inserted into the socket of another pipe along one direction and then sealed to form a solid closed whole. However, when splicing larger pipes, due to the heavy weight and long length of the pipes, the pipes are prone to shaking during the docking process of the two pipes, making it difficult to align and adjust, which easily affects the docking accuracy of the pipes. In addition, the alignment process is time-consuming and labor-intensive, greatly reducing the construction efficiency. Summary of the invention

[0003] The present invention provides an installation structure and an installation method for pipeline construction, which are used to solve the above-mentioned technical problems that when splicing pipelines with larger specifications and sizes, the pipelines are prone to shaking during the docking process of two pipelines due to their heavy weight and long length, making it difficult to align and adjust, which easily affects the docking accuracy of the pipelines, and the alignment process is time-consuming and labor-intensive, greatly reducing the construction efficiency.

[0004] In order to solve the above technical problems, the present invention discloses an installation structure for pipeline construction, including a construction shell, wherein the front and rear ends of the construction shell are respectively provided with a base and a centering mechanism, the centering mechanism and the base are distributed up and down, a construction cavity is provided inside the construction shell, and docking ports are penetrated through the front and rear ends of the middle part of the construction shell, the construction cavity is connected with the docking ports, the docking ports at the front and rear ends are arranged one by one with the centering mechanisms at the front and rear ends, a supporting and positioning mechanism is slidably installed on the upper end of the base, the supporting and positioning mechanism is used to support and position the pipeline to be constructed, and the joint action of the supporting and positioning mechanism and the centering mechanism makes the central axis of the pipeline to be constructed and the center of the docking port be in the same straight line.

[0005] Preferably, a construction opening 1 is provided at the upper end of the construction shell, and a construction opening 2 and a walking board are provided at the left and right ends of the construction shell respectively, the walking board is correspondingly arranged at the lower side of the construction opening 2, and the construction opening 1 and the construction opening 2 are respectively connected to the construction cavity.

[0006] Preferably, the centering mechanism includes a fixing ring, which is fixedly connected to the construction shell, and the diameter of the inner ring through hole of the fixing ring is the same as the diameter of the docking port, the inner ring through hole of the fixing ring is connected to the docking port, a number of guide holes are evenly distributed circumferentially of the fixing ring, the several guide holes are respectively connected to the inner ring through hole of the fixing ring, the several guide holes are slidably connected to a number of centering rods in a one-to-one correspondence, the centering rod is fixedly connected to the connecting block, a spring is fixedly provided between the connecting block and the outer ring of the fixing ring, a spring set is provided on the centering rod, and the connecting block is slidably connected to the construction shell.

[0007] Preferably, the centering mechanism also includes a rotating ring, which is rotatably connected to the construction shell, and a plurality of arc-shaped push blocks are evenly distributed circumferentially in the inner ring through hole of the rotating ring, and the arc-shaped push blocks are in corresponding contact with the end of the centering rod away from the fixed ring, and the outer ring of the rotating ring is fixedly connected to the gear ring, the gear ring is meshed with gear two, gear two is rotatably connected to the construction shell, gear two is meshed with gear one, gear one is fixedly connected to motor one, motor one is fixedly mounted on fixed plate one, and fixed plate one is fixedly connected to the construction shell.

[0008] Preferably, slideways are symmetrically provided on the left and right sides of the upper end of the base, a slider is slidably provided in the slideways, the slider is fixedly connected to the supporting and positioning mechanism, the supporting and positioning mechanism includes a supporting assembly and a positioning assembly, the supporting assembly includes a base block, the left and right sides of the lower end of the base block are respectively fixedly connected to the sliders, a mounting opening is penetrated through the front and rear ends of the middle part of the base block, a lifting rod is rotatably provided in the mounting opening, the cylindrical section of the lifting rod is fixedly connected to bevel gear 2, the threaded section of the lifting rod is threadedly connected to the lifting sleeve, the lifting sleeve penetrates the upper end of the mounting opening and is fixedly connected to the lower end of the lifting seat, the left and right ends of the lifting seat are respectively slidably connected to the left and right ends of the base block, the bevel gear 2 is meshed with the bevel gear 1, the bevel gear 1 is fixedly connected to the motor 2, the motor 2 is fixedly mounted on the fixing plate 2, and the fixing plate 2 is fixedly set at an end of the base block away from the construction shell.

[0009] Preferably, the support assembly also includes support plates symmetrically arranged on the left and right sides of the upper end of the lifting seat, support blocks are symmetrically arranged on the front and rear sides of the upper end of the support plates, support shafts are rotatably arranged at the ends of the support blocks on the front and rear sides close to each other, a support shell is fixedly arranged between the support shafts on the front and rear sides, a support groove is arranged at the upper end of the support shell, and a plurality of support rollers are evenly spaced in the support groove along the up and down directions.

[0010] Preferably, the positioning assembly includes a mounting seat, the mounting seat is correspondingly arranged in the bayonet on the right side of the upper end of the base, a mounting plate 1 is fixedly provided on the lower side of the left end of the mounting seat, and spring 2 is symmetrically provided on the left and right sides of the upper end of the mounting plate 1, the spring 2 is fixedly connected to the mounting block 1, the upper end of the mounting block 1 is fixedly connected to the positioning block 1, the right end of the mounting block 1 is fixedly connected to the rack, the rack is meshed with the gear 3, the gear 3 is fixedly connected to the mounting shaft, the mounting shaft is rotatably arranged in the mounting groove at the left end of the mounting seat, the mounting shaft passes through the mounting groove and is fixedly connected to the bevel gear 3 at one end away from the construction shell, the bevel gear 3 is meshed with the bevel gear 4, the bevel gear 4 is fixedly connected to the threaded sleeve, the threaded sleeve is rotatably connected to the mounting block 2, the mounting block 2 is fixedly arranged at the end of the mounting seat away from the construction shell, the threaded sleeve is threadedly connected to the threaded rod 1, the threaded rod 1 is fixedly connected to the mounting plate 2, the lower end of the mounting plate 2 is fixedly connected to the positioning block 2, the center of the positioning block 1 along the left and right horizontal directions, the center of the positioning block 2 along the left and right horizontal directions and the center of the docking interface are in the same vertical plane along the front and rear directions.

[0011] Preferably, one end of the mounting block 1 close to the construction shell is fixedly connected to the sliding block 1, the sliding block 1 is slidably connected to the end of the mounting seat close to the construction shell, the sliding block 1 is fixedly connected to the mounting block 3, a scale line 2 is provided at the upper edge of the mounting block 3, the mounting block 3 is rotatably connected to the cylindrical section of the threaded rod 2, the threaded section of the threaded rod 2 is threadedly connected to the adjusting block, the adjusting block is fixedly connected to the sliding block 2, the sliding block 2 is slidably connected to the right end of the mounting seat, the sliding block 2 corresponds to the guide port and the sliding cavity, the guide port is arranged at the lower end of the guide block, the sliding cavity is arranged at the left end of the guide block, and the sliding cavity is arranged at the left end of the guide block. The dynamic cavity is connected with the guide port up and down, the guide block is fixedly arranged on the right side of the construction shell, the upper end of the threaded rod two is rotatably connected with the mounting block four, the lower end of the threaded rod two is fixedly connected with the operating block, the mounting block four and the adjusting block are respectively slidably connected with the sliding block three, the sliding block three is slidably connected with the end of the mounting seat away from the construction shell, and a scale block is provided at the end of the sliding block three away from the mounting seat, the scales on the scale block are arranged corresponding to the scale line one on the adjusting block and the scale line two on the mounting block three, and after the sliding block two cooperates with the sliding cavity, the scale line one and the center of the docking port are in the same horizontal plane along the front-back direction.

[0012] Preferably, it also includes a locking mechanism, which includes a threaded hole 1 set at one end of the lifting seat away from the construction shell, a locking plate is fixedly provided on the side of the lower end of the lifting seat away from the construction shell, a plurality of threaded holes 3 are provided on the locking plate, the threaded hole 1 and the plurality of threaded holes 3 are evenly spaced along the up and down directions, the threaded hole 1 or the plurality of threaded holes 3 are correspondingly threadedly connected with the rear threaded section of the threaded rod 3, the middle cylindrical section of the threaded rod 3 passes through one end of the mounting seat close to the construction shell and is rotatably connected to the two sliding plates, the two sliding plates are slidably set in the mounting groove, a fixed gear is fixedly provided between the two sliding plates, the fixed gear is correspondingly meshed with the gear 3, and the front threaded section of the threaded rod 3 is correspondingly meshed with the mounting seat The threaded hole two at the end of the mounting seat away from the construction shell is threadedly connected, and the threaded rod three passes through the threaded hole two and is fixedly connected to the rotating disk. The rotating disk is eccentrically provided with an eccentric hole, and the eccentric hole is slidably connected to the eccentric rod. The eccentric rod corresponds to the positioning hole set at the end of the mounting seat away from the construction shell. The eccentric rod is fixedly connected to the limit block. A spring three is fixedly provided between the limit block and the rotating disk, and the spring three is set on the eccentric rod. The end of the eccentric rod away from the positioning hole is fixedly connected to the control block, the two sliding plates are fixedly connected to the L-shaped block, the L-shaped block is fixedly connected to the locking bevel gear one, the locking bevel gear one is correspondingly meshed with the locking bevel gear two, and the locking bevel gear two is fixedly connected to the cylindrical section of the threaded rod two.

[0013] An installation method for pipeline construction, which uses an installation structure for pipeline construction for installation, comprises the following steps:

[0014] Step 1: Place two pipes to be spliced ​​on the supporting positioning mechanisms of the bases distributed front and back respectively;

[0015] Step 2: Control the front and rear distributed support positioning mechanisms to work, adjust the positions of the two pipes to be spliced, so that the central axes of the two pipes to be spliced ​​and the center of the butt joint are in the same straight line along the front and rear direction;

[0016] Step 3: Control the front and rear distributed support positioning mechanisms to slide toward the construction shell so that the two pipes to be spliced ​​extend into the docking ports;

[0017] Step 4: Control the centering mechanism distributed in the front and rear to work, and re-position and calibrate the side of the two pipes to be spliced ​​close to the butt joint;

[0018] Step 5: Then control the front and rear distributed support positioning mechanisms to continue sliding toward the construction shell, so that the two pipes to be spliced ​​are extended into the construction cavity to complete the docking;

[0019] Step 6: Construction workers install and fix the two pipes to be spliced ​​in the construction cavity.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The operation of the centering mechanism can ensure that the central axis of the side of the pipe to be spliced ​​close to the docking interface is in the same straight line with the center of the docking interface, so that the central axis of the two splicing interfaces of the pipes to be spliced ​​distributed front and back are in the same straight line with the center of the docking interface. Even if the two pipes to be spliced ​​shake during the docking process, it is convenient to align and adjust the position of the pipes to be spliced ​​close to the splicing interface and keep it stable during the subsequent docking and installation process, thereby improving the docking accuracy of the two pipes to be spliced. The alignment process only needs to control the operation of the centering mechanism, which saves time and effort and avoids errors that are prone to occur in manual alignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the connection structure between the construction shell and the centering mechanism of the present invention;

[0025] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of region A;

[0026] Figure 4 It is a schematic diagram of the support assembly structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the connection structure of the motor 2 of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the support and positioning mechanism of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the positioning component of the present invention;

[0030] Figure 8 It is a schematic diagram of the locking mechanism structure of the present invention;

[0031] Fig. 9 It is a schematic diagram of a sliding block connection structure of the present invention;

[0032] Fig.10 It is a structural schematic diagram of the sliding block 2 of the present invention.

[0033] In the figure: 1. construction shell; 2. walking board; 3. construction opening 2; 4. construction opening 1; 5. motor 1; 6. gear ring; 7. construction cavity; 8. base; 9. base block; 10. lifting seat; 11. slideway; 12. slider; 13. motor 2; 14. rotating ring; 15. arc-shaped push block; 16. fixed ring; 17. gear 1; 18. gear 2; 19. guide hole; 20. spring 1; 21. centering rod; 22. lifting rod; 23. support plate; 24. threaded hole 1; 25. support shell; 26. support roller; 27. support block; 28. bevel gear 1; 29. ​​bevel gear 2; 30. lifting sleeve; 31. guide block; 32. mounting seat; 33. mounting plate 1; 34. mounting block 1; 35. positioning block 1 ;36. Mounting plate two;37. Rack;38. Spring two;39. Sliding block one;40. Gear three;41. Bevel gear three;42. Bevel gear four;43. Threaded sleeve;44. Threaded rod one;45. Mounting block two;46. Positioning block two;47. Sliding block three;48. Threaded rod two;49. L-shaped block;50. Locking bevel gear one;51. Locking bevel gear two;52. Rotating plate;53. Control block;54. Spring three;55. Eccentric rod;56. Limit block;57. Threaded rod three;58. Fixed gear;59. Mounting groove;60. Sliding plate;61. Sliding cavity;62. Guide port;63. Sliding block two;64. Adjusting block;65. Scale line one;66. Scale block;67. Locking plate. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0035] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The present invention provides the following embodiments Example 1

[0037] The embodiment of the present invention provides an installation structure for pipeline construction, such as Figure 1-Figure 10As shown, it includes a construction shell 1, and the front and rear ends of the construction shell 1 are respectively provided with a base 8 and a centering mechanism, the centering mechanism and the base 8 are distributed up and down, and a construction cavity 7 is provided inside the construction shell 1, and docking ports are penetrated through the front and rear ends of the middle part of the construction shell 1, and the construction cavity 7 is connected with the docking ports, and the docking ports at the front and rear ends are arranged one by one with the centering mechanisms at the front and rear ends, and a supporting positioning mechanism is slidably installed on the upper end of the base 8, and the supporting positioning mechanism is used to support and position the pipeline to be constructed, and the joint action of the supporting positioning mechanism and the centering mechanism makes the central axis of the pipeline to be constructed and the center of the docking port be in the same straight line;

[0038] The upper end of the construction shell 1 is provided with a construction opening 1 4, and the left and right ends of the construction shell 1 are respectively provided with a construction opening 2 3 and a walking board 2, and the walking board 2 is correspondingly arranged on the lower side of the construction opening 2 3, and the construction opening 1 4 and the construction opening 2 3 are respectively connected to the construction cavity 7.

[0039] The beneficial effects of the above technical solution are:

[0040] When carrying out pipeline construction, the two pipes to be spliced ​​are respectively placed on the supporting and positioning mechanisms of the front and rear distributed bases 8, the two pipes to be spliced ​​are supported and positioned, and then the front and rear distributed supporting and positioning mechanisms are controlled to work to adjust the positions of the two pipes to be spliced, so that the central axes of the two pipes to be spliced ​​are in the same straight line with the center of the docking interface, and then the front and rear distributed supporting and positioning mechanisms are pushed to slide along the upper end of the base 8, so that the two pipes to be spliced ​​extend into the docking interface. After the distance between the splicing interfaces of the two pipes to be spliced ​​is close, the two pipes to be spliced ​​are squeezed and pushed by the front and rear distributed centering mechanisms, so as to adjust the positions of the two pipes to be spliced ​​close to the splicing interfaces, so that the central axes of the two pipes to be spliced ​​close to the splicing interface are in the same straight line with the center of the docking interface. At this time, the two pipes to be spliced ​​are concentrically arranged, and the front and rear distributed supporting and positioning mechanisms are continued to be pushed to drive the two pipes to be spliced ​​to extend into the construction cavity 7 until the splicing interfaces of the two pipes to be spliced ​​move to the target installation position, and then the construction personnel enter the construction cavity 7 through the construction port 1 4 and the construction port 2 3. In the process, two pipes to be spliced ​​are connected as a whole. The walking plate 2 is provided to facilitate the construction workers to enter and exit the construction chamber 7. Moving wheels can be provided at the lower ends of the construction shell 1 and the base 8, and the diameter of the docking interface is large enough. After the installation of the two pipes to be spliced ​​is completed, the construction shell 1 and the base 8 are moved along the length direction of the pipes to be spliced, which is convenient for subsequent pipeline construction. The setting of the centering mechanism, even if the two pipes to be spliced ​​shake during the docking process, it is convenient to align and adjust the positions of the two pipes to be spliced ​​near the splicing interface and keep them stable during the subsequent docking and installation process, thereby improving the docking accuracy of the two pipes to be spliced, and the alignment process can control the centering mechanism to work, which saves time and effort, and avoids errors that are easy to occur in manual alignment. It solves the above-mentioned technical problem that when splicing pipes with larger specifications, due to the large weight and long length of the pipes, the pipes are prone to shaking during the docking process of the two pipes, and it is difficult to align and adjust, which easily affects the docking accuracy of the pipes, and the alignment process is time-consuming and labor-intensive, which greatly reduces the construction efficiency. Example 2

[0041] On the basis of Example 1, Figure 1-Figure 3 As shown, the centering mechanism includes a fixing ring 16, the fixing ring 16 is fixedly connected to the construction shell 1, and the diameter of the inner circle through hole of the fixing ring 16 is the same as the diameter of the docking port, the inner circle through hole of the fixing ring 16 is connected to the docking port, the fixing ring 16 is evenly provided with a plurality of guide holes 19 in the circumferential direction, the plurality of guide holes 19 are respectively connected to the inner circle through hole of the fixing ring 16, the plurality of guide holes 19 are slidably connected to a plurality of centering rods 21 in a one-to-one correspondence, the centering rod 21 is fixedly connected to the connecting block, a spring 20 is fixedly provided between the connecting block and the outer ring of the fixing ring 16, the spring 20 is sleeved on the centering rod 21, and the connecting block is slidably connected to the construction shell 1;

[0042] The centering mechanism also includes a rotating ring 14, which is rotatably connected to the construction shell 1. A number of arc-shaped push blocks 15 are evenly distributed circumferentially in the inner ring through hole of the rotating ring 14. The arc-shaped push blocks 15 are in corresponding contact with the end of the centering rod 21 away from the fixed ring 16. The outer ring of the rotating ring 14 is fixedly connected to the gear ring 6, the gear ring 6 is meshed with gear 2 18, gear 2 18 is rotatably connected to the construction shell 1, gear 2 18 is meshed with gear 1 17, gear 17 is fixedly connected to motor 1 5, motor 1 5 is fixedly installed on fixed plate 1, fixed plate 1 is fixedly connected to the construction shell 1, fixed plate 1 and motor 1 5 are both arranged on the lower side of the walking plate 2.

[0043] The beneficial effects of the above technical solution are:

[0044] The centers of the fixed ring 16 and the rotating ring 14 are the same as the center of the docking interface. When the centering mechanism is working, the motor 15 is controlled to work, the motor 15 drives the gear 17 to rotate, the gear 17 drives the gear ring 6 to rotate through the gear 2 18, the gear ring 6 drives the rotating ring 14 to rotate, the rotating ring 14 drives the several arc-shaped pushing blocks 15 installed thereon to rotate, and when the arc-shaped pushing blocks 15 rotate, they push the corresponding centering rods 21 to move toward the docking interface, and the guide holes 19 guide the movement of the centering rods 21. When the centering rods 21 move, they drive the connecting blocks to slide along the construction shell 1, and the connecting blocks drive the spring 1 20 to compress. When the several circumferentially distributed centering rods 21 move toward the docking interface, they can push the central axis of the pipe to be spliced ​​close to the splicing interface to move toward the center of the docking interface. The number of the several centering rods 21 is at least three, and the several circumferentially distributed centering rods 21 cannot move. After the movement, it means that several circumferentially distributed centering rods 21 are in contact with the pipes to be spliced. A guide wheel can be set on the side of the centering rod 21 close to the pipe to be spliced. When the two pipes to be spliced ​​are concentrically arranged to continue to push the supporting positioning mechanism to drive the pipes to be spliced ​​to move toward the construction cavity 7, the friction between the centering rod 21 and the pipes to be spliced ​​is reduced, which facilitates the movement of the pipes to be spliced. The above-mentioned several circumferentially distributed centering rods 21 can center pipes of different diameters. At this time, the central axis of the side of the pipe to be constructed close to the splicing interface is in the same straight line with the center of the docking interface. The width of the construction cavity 7 along the front-to-back direction is set to be sufficient for construction, ensuring that the center of the splicing interface of the pipe to be constructed and the center of the docking interface are in the same straight line, thereby ensuring the docking accuracy of the two pipes to be spliced, and also making the splicing interface of the two pipes to be spliced ​​remain stable during docking, avoiding shaking during the docking process. Example 3

[0045] On the basis of Example 1, Figure 1-Figure 5As shown, slideways 11 are symmetrically provided on the left and right sides of the upper end of the base 8, and a slider 12 is slidably provided in the slideway 11. The slider 12 is fixedly connected to the supporting and positioning mechanism. The supporting and positioning mechanism includes a supporting assembly and a positioning assembly. The supporting assembly includes a base block 9. The left and right sides of the lower end of the base block 9 are respectively fixedly connected to the slider 12. A mounting opening is penetrated through the front and rear ends of the middle part of the base block 9. A lifting rod 22 is rotatably provided in the mounting opening. The cylindrical section of the lifting rod 22 is fixedly connected to the bevel gear 29. The threaded section of the lifting rod 22 is threadedly connected to the lifting sleeve 30. The lifting sleeve 30 penetrates the upper end of the mounting opening and is fixedly connected to the lower end of the lifting seat 10. The left and right ends of the lifting seat 10 are respectively slidably connected to the left and right ends of the base block 9. The bevel gear 29 is meshed with the bevel gear 1 28. The bevel gear 1 28 is fixedly connected to the motor 2 13. The motor 13 is fixedly installed on the fixing plate 2. The fixing plate 2 is fixedly set at one end of the base block 9 away from the construction shell 1.

[0046] The support assembly also includes a support plate 23 symmetrically arranged on the left and right sides of the upper end of the lifting seat 10, and support blocks 27 are symmetrically arranged on the front and rear sides of the upper end of the support plate 23. The support blocks 27 on the front and rear sides are rotatably provided with support shafts at one end close to each other, and a support shell 25 is fixedly provided between the support shafts on the front and rear sides. A support groove is provided at the upper end of the support shell 25, and a plurality of support rollers 26 are evenly spaced in the support groove along the up and down directions.

[0047] The beneficial effects of the above technical solution are:

[0048] When the supporting and positioning mechanism is pushed to slide along the base 8, the supporting and positioning mechanism drives the slider 12 to slide along the slideway 11, which has a guiding effect on the movement of the supporting and positioning mechanism. A screw rod can be connected to the slider 12, which is not shown in the figure, so that the slider 12 is automatically driven along the slideway 11 by the motor driving the screw rod, thereby achieving the purpose of controlling the supporting and positioning mechanism to automatically slide along the upper end of the base 8. When the motor 2 13 is working, it can drive the bevel gear 1 28 to rotate, and the bevel gear 1 28 drives the bevel gear 2 29 to rotate. When the bevel gear 29 rotates, it drives the lifting rod 22 to rotate, and the lifting rod 22 drives the lifting sleeve 30 to move up and down. When the lifting sleeve 30 moves up and down, it drives the lifting seat 10 to slide up and down along the base block 9, and the lifting seat 10 drives the left and right symmetrical support plates 23 to move up and down. The axis of symmetry between the left and right symmetrical support plates 23 and the center of the docking port are in the same vertical plane along the front-to-back direction. The support plates 23 drive the support shell 25 to move up and down, and the support shell 25 drives a number of support rollers 26 to move up and down. The length direction of the support rollers 26 is the front-to-back direction. Before placing the pipeline to be constructed, the support shell 25 is kept in a horizontal state. The support shell 25 can drive the support shaft to rotate. By adjusting the angle of the support shell 25, pipelines to be constructed of different diameters can be supported, so that the central axis of the supported pipeline to be constructed and the center of the docking port are in the same vertical plane along the front-to-back direction. By controlling the motor 2 13 to work, the pipeline to be constructed can be driven to move up and down, and when the slider 12 slides along the slideway 11, the pipeline to be constructed can be driven to move forward and backward. Example 4

[0049] On the basis of Example 3, Figure 1-Figure 10 As shown, the positioning assembly includes a mounting seat 32, and the mounting seat 32 is correspondingly arranged in the bayonet on the upper right side of the base 8. A mounting plate 33 is fixedly arranged on the lower side of the left end of the mounting seat 32, and springs 38 are symmetrically arranged on the left and right sides of the upper end of the mounting plate 33. The springs 38 are fixedly connected to the mounting block 34, and the upper end of the mounting block 34 is fixedly connected to the positioning block 35. The right end of the mounting block 34 is fixedly connected to the rack 37, the rack 37 is meshed with the gear 3 40, and the gear 3 40 is fixedly connected to the mounting shaft. The mounting shaft is rotatably arranged in the mounting groove 59 at the left end of the mounting seat 32, and the mounting shaft passes through the mounting groove 59 away from the construction One end of the shell 1 is fixedly connected to the bevel gear three 41, the bevel gear three 41 is meshed with the bevel gear four 42, the bevel gear four 42 is fixedly connected to the threaded sleeve 43, the threaded sleeve 43 is rotatably connected to the mounting block two 45, the mounting block two 45 is fixedly arranged at the end of the mounting seat 32 away from the construction shell 1, the threaded sleeve 43 is threadedly connected to the threaded rod one 44, the threaded rod one 44 is fixedly connected to the mounting plate two 36, the lower end of the mounting plate two 36 is fixedly connected to the positioning block two 46, the center of the positioning block one 35 along the left and right horizontal direction, the center of the positioning block two 46 along the left and right horizontal direction and the center of the docking interface are in the same vertical plane along the front-back direction;

[0050] The end of the mounting block 34 close to the construction shell 1 is fixedly connected to the sliding block 39, the sliding block 39 is slidably connected to the end of the mounting seat 32 close to the construction shell 1, the sliding block 39 is fixedly connected to the mounting block 3, and a scale line 2 is provided at the upper edge of the mounting block 3. The mounting block 3 is rotatably connected to the cylindrical section of the threaded rod 2 48, and the threaded section of the threaded rod 2 48 is threadedly connected to the adjusting block 64. The adjusting block 64 is fixedly connected to the sliding block 2 63, and the sliding block 2 63 is slidably connected to the right end of the mounting seat 32. The sliding block 2 63 corresponds to the guide port 62 and the sliding cavity 61. The guide port 62 is arranged at the lower end of the guide block 31, and the sliding cavity 61 is arranged at the left end of the guide block 31. The cavity 61 is connected to the guide port 62 up and down, the guide block 31 is fixedly arranged on the right side of the construction shell 1, the upper end of the threaded rod 2 48 is rotatably connected to the mounting block 4, the lower end of the threaded rod 2 48 is fixedly connected to the operating block, the mounting block 4 and the adjusting block 64 are slidably connected to the sliding block 3 47 respectively, the sliding block 3 47 is slidably connected to the end of the mounting seat 32 away from the construction shell 1, and the end of the sliding block 3 47 away from the mounting seat 32 is provided with a scale block 66, the scales on the scale block 66 are arranged corresponding to the scale line 1 65 on the adjusting block 64 and the scale line 2 on the mounting block 3, and after the sliding block 2 63 cooperates with the sliding cavity 61, the scale line 1 65 and the center of the docking interface are in the same horizontal plane along the front-to-back direction.

[0051] The beneficial effects of the above technical solution are:

[0052] The setting of the bayonet enables the mounting seat 32 to be stably set on the base 8. The positioning components are distributed on the right side of the base 8, which is convenient for placing the pipeline to be constructed on the supporting positioning mechanism from the left. When placing the pipeline to be constructed on the supporting positioning mechanism, first make the height of the supporting shell 25 high enough, then place the middle part of the pipeline to be constructed on the supporting roller 26, and then adjust and calibrate the central axis of the pipeline to be constructed. First, control the motor 2 13 to work, so that the lifting seat 10 moves downward, thereby driving the supporting shell 25 and the pipeline to be constructed placed thereon to move downward, until the pipeline to be constructed contacts the upper end of the positioning block 1 35. As the pipeline to be constructed continues to move downward, the positioning block 1 35 drives the mounting block 1 34 to move downward with the pipeline to be constructed. , driving spring 2 38 to compress, after the pipeline to be constructed is out of contact with positioning block 1 35, positioning block 1 35 and mounting block 1 34 can return to their original positions under the elastic action of spring 2 38, and mounting block 1 34 drives sliding block 1 39 and rack 37 to move downward when it moves downward, sliding block 1 39 drives mounting block 3 to move downward, mounting block 3 drives adjusting block 64 and mounting block 4 to move downward through threaded rod 2 48, adjusting block 64 drives sliding block 2 63 to move downward, so that sliding block 2 63 is out of guide port 62, and rack 37 drives gear 3 40 to rotate when it moves downward, gear 3 40 drives bevel gear 3 41 to rotate through the mounting shaft, bevel gear 3 41 drives bevel gear 4 42 to rotate, bevel gear 4 42 drives threaded sleeve 43 to rotate, thread The sleeve 43 drives the threaded rod 1 44 to move up and down, the threaded rod 1 44 drives the mounting plate 2 36 to move up and down, the mounting plate 2 36 drives the positioning block 2 46 to move downward, the speed of the positioning block 2 46 moving downward is different from the speed of the positioning block 1 35 moving downward, the positioning block 2 46 drives the sliding block 3 47 to move downward, the mounting seat 32 guides the sliding block 1 39, the sliding block 2 63 and the sliding block 3 47 to move up and down, when the sliding block 3 47 moves downward, it drives the scale block 66 to move downward, when the scale block 66 moves downward, the scale on it deviates up and down along the scale line 1 65 and the scale line 2 until the positioning block 2 46 contacts the upper end of the pipeline to be constructed, at this time, due to the different downward movement speeds of the positioning block 2 46 and the positioning block 1 35, Therefore, the positioning block 2 46 and the positioning block 1 35 cannot move, the sliding block 1 39, the sliding block 2 63 and the sliding block 3 47 cannot move, and the lifting seat 10 is controlled to stop moving downward, and the scale line 2 is always kept flush with the upper end horizontal surface of the mounting block 1 34, and the scale of the uppermost side of the scale block 66 is always kept flush with the lower end horizontal surface of the mounting plate 2 36. At this time, read the scale line 2 on the upper edge of the mounting block 3 and the scale of the uppermost side of the scale block 66, and take the scale corresponding to the middle value of the two scales. Then, the operating block drives the threaded rod 2 48 to rotate, and the threaded rod 2 48 drives the adjusting block 64 to move up and down, so that the scale line 1 65 on the adjusting block 64 is kept flush with the scale corresponding to the middle value of the above two scales.At this time, the scale line 65 on the adjustment block 64 and the central axis of the pipeline to be constructed are in the same horizontal plane along the left-right direction. Example 5

[0053] On the basis of Example 4, Figure 1-Figure 10 As shown, it also includes a locking mechanism, which includes a threaded hole 24 set at one end of the lifting seat 10 away from the construction shell 1, a locking plate 67 is fixedly provided on the side of the lower end of the lifting seat 10 away from the construction shell 1, and a plurality of threaded holes 3 are provided on the locking plate 67. The threaded hole 24 and the plurality of threaded holes 3 are evenly spaced along the up and down directions. The threaded hole 24 or the plurality of threaded holes 3 are correspondingly threadedly connected with the rear threaded section of the threaded rod 3 57. The middle cylindrical section of the threaded rod 3 57 passes through one end of the mounting seat 32 close to the construction shell 1 and is rotatably connected with two sliding plates 60. The two sliding plates 60 are slidably set in the mounting groove 59. A fixed gear 58 is fixed between the two sliding plates 60. The fixed gear 58 is correspondingly meshed with the gear 3 40. The front threaded section of the threaded rod 3 57 is away from the mounting seat 32. The threaded hole two at one end of the construction shell 1 is threadedly connected, and the threaded rod three 57 passes through the threaded hole two and is fixedly connected to the rotating disk 52. The rotating disk 52 is eccentrically provided with an eccentric hole, and the eccentric hole is slidably connected to the eccentric rod 55. The eccentric rod 55 corresponds to the positioning hole set at the end of the mounting seat 32 away from the construction shell 1. The eccentric rod 55 is fixedly connected to the limit block 56. A spring three 54 is fixedly provided between the limit block 56 and the rotating disk 52, and the spring three 54 is sleeved on the eccentric rod 55. The end of the eccentric rod 55 away from the positioning hole is fixedly connected to the control block 53. The two sliding plates 60 are fixedly connected to the L-shaped block 49. The L-shaped block 49 is fixedly connected to the locking bevel gear one 50. The locking bevel gear one 50 is correspondingly meshed with the locking bevel gear two 51. The locking bevel gear two 51 is fixedly connected to the cylindrical section of the threaded rod two 48.

[0054] The beneficial effects of the above technical solution are:

[0055] After the scale line 1 65 on the adjustment block 64 is in the same straight line as the scale corresponding to the middle value of the above numerical difference, the control block 53 is pulled, and the control block 53 drives the eccentric rod 55 to move, so that the eccentric rod 55 is disengaged from the eccentric hole. In this process, the eccentric rod 55 drives the limit block 56 to move, and the spring three 54 is compressed. Then, the eccentric rod 55 drives the rotating disk 52 to rotate the target number of circles, and the rotating disk 52 drives the threaded rod three 57 to rotate. The setting of the threaded hole two makes the threaded rod three 57 move toward the threaded hole one 24 or the threaded hole three. The cylindrical section of the threaded rod three 57 drives the two sliding plates 60 to move along the mounting groove 59, and the two sliding plates 60 drive the L-shaped block 49 to move until the fixed gear 58 between the two sliding plates 60 and the The gear three 40 is meshed correspondingly. At this time, the gear three 40 cannot rotate, so the rack 37 cannot move downward, the positioning block one 35 and the positioning block two 46 cannot move downward, the mounting block three and the scale block 66 remain fixed, and at this time the L-shaped block 49 just drives the locking bevel gear one 50 to mesh with the locking bevel gear two 51, the threaded rod two 48 cannot rotate, and the adjustment block 64 remains fixed, ensuring that the scale line one 65 on the adjustment block 64 is always in the same straight line with the scale corresponding to the middle value of the above two scales, avoiding the scale line one 65 and the scale corresponding to the middle value of the above numerical difference from offsetting under external influences, and at the same time, the threaded rod three 57 is threadedly connected with the corresponding threaded hole one 24 or threaded hole three, so that the mounting seat 32 and the lifting seat 1 0 or locking plate 67 completes the connection, and then releases the control block 53. Under the elastic action of the spring three 54, the eccentric rod 55 re-matches with the eccentric hole, so that the rotating disk 52 and the threaded rod three 57 connected thereto cannot rotate. At this time, the control motor two 13 works in the reverse direction to move the lifting seat 10 upward. The lifting seat 10 drives the locking plate 67 to move upward, so that the mounting seat 32 moves upward and disengages from the bayonet. In this process, since the positioning block two 46 and the positioning block one 35 are in contact with the pipeline to be constructed, the mounting seat 32 cannot deflect around the threaded rod three 57 as the center. After the mounting seat 32 drives the sliding block two 63 to enter the sliding cavity 61 through the guide port 62 and cannot move upward, the sliding block two 63 cooperates with the sliding cavity 61, and the sliding block two 63 moves along the upper and lower sides. The height in the vertical direction is the same as the height of the sliding cavity 61 along the up and down direction. At this time, the scale line 1 65 and the center of the docking interface are in the same horizontal plane. Therefore, the central axis of the pipeline to be constructed and the center of the docking interface are in the same straight line, thereby realizing the positioning of the pipeline to be constructed. When the supporting positioning mechanism drives the pipeline to be constructed to move forward and backward, the sliding block 2 63 slides forward and backward along the sliding cavity 61. Compared with the manual measurement and positioning method, the above positioning method can avoid the error of manual measurement, has high positioning accuracy, and can be used in conjunction with the centering mechanism to support and initially position the pipeline to be constructed, thereby avoiding the situation where the central axis of the pipeline to be constructed and the center of the docking interface are not in the same straight line along the front and back direction, and it is difficult to accurately position the pipeline to be constructed only by the centering mechanism. Example 6

[0056] On the basis of Example 1, Figure 1-Figure 10 As shown, an installation method for pipeline construction, which uses an installation structure for pipeline construction for installation, includes the following steps:

[0057] Step 1: Place two pipes to be spliced ​​on the supporting and positioning mechanisms of the bases 8 distributed front and back respectively;

[0058] Step 2: Control the front and rear distributed support positioning mechanisms to work, adjust the positions of the two pipes to be spliced, so that the central axes of the two pipes to be spliced ​​and the center of the butt joint are in the same straight line along the front and rear direction;

[0059] Step 3: Control the front and rear distributed support positioning mechanisms to slide toward the construction shell 1, so that the two pipes to be spliced ​​extend into the docking port;

[0060] Step 4: Control the centering mechanism distributed in the front and rear to work, and re-position and calibrate the side of the two pipes to be spliced ​​close to the butt joint;

[0061] Step 5: Then control the front and rear distributed support positioning mechanisms to continue sliding toward the construction shell 1, so that the two pipes to be spliced ​​extend into the construction cavity 7 to complete the docking;

[0062] Step 6: The construction personnel install and fix the two pipes to be spliced ​​in the construction cavity 7.

[0063] The beneficial effects of the above technical solution are:

[0064] The centering mechanism can ensure that the central axis of the side of the pipe to be spliced ​​close to the docking interface is in the same straight line with the center of the docking interface, so that the central axis of the splicing interface of the two pipes to be spliced ​​distributed front and back is in the same straight line with the center of the docking interface, thereby improving the docking accuracy of the two pipes to be spliced ​​and keeping the two pipes to be spliced ​​stable during the docking process.

[0065] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An installation structure for pipeline construction, characterized in that: The construction shell (1) comprises a construction shell (1), wherein the front and rear ends of the construction shell (1) are respectively provided with a base (8) and a centering mechanism, the centering mechanism and the base (8) are arranged up and down, a construction cavity (7) is arranged inside the construction shell (1), and a docking interface is provided through the front and rear ends of the middle part of the construction shell (1), the construction cavity (7) is connected with the docking interface, the docking interfaces at the front and rear ends are arranged one by one correspondingly with the centering mechanisms at the front and rear ends, a support positioning mechanism is slidably mounted on the upper end of the base (8), the support positioning mechanism is used to support and position the pipeline to be constructed, and the support positioning mechanism and the centering mechanism work together to make the central axis of the pipeline to be constructed and the center of the docking interface be in the same straight line; The centering mechanism comprises a fixing ring (16), the fixing ring (16) is fixedly connected to the construction shell (1), and the diameter of the inner ring through hole of the fixing ring (16) is the same as the diameter of the docking port, the inner ring through hole of the fixing ring (16) is connected to the docking port, a plurality of guide holes (19) are evenly distributed around the fixing ring (16), the plurality of guide holes (19) are respectively connected to the inner ring through hole of the fixing ring (16), the plurality of guide holes (19) are slidably connected to a plurality of centering rods (21) in a one-to-one correspondence, the centering rods (21) are fixedly connected to the connection block, a spring (20) is fixedly provided between the connection block and the outer ring of the fixing ring (16), the spring (20) is sleeved on the centering rod (21), and the connection block is slidably connected to the construction shell (1); The centering mechanism also includes a rotating ring (14), the rotating ring (14) is rotatably connected to the construction shell (1), a plurality of arc-shaped push blocks (15) are evenly arranged in the circumferential direction in the inner ring through hole of the rotating ring (14), the arc-shaped push blocks (15) are in corresponding contact with the end of the centering rod (21) away from the fixed ring (16), the outer ring of the rotating ring (14) is fixedly connected to the gear ring (6), the gear ring (6) is meshed with gear 2 (18), gear 2 (18) is rotatably connected to the construction shell (1), gear 2 (18) is meshed with gear 1 (17), gear 1 (17) is fixedly connected to motor 1 (5), motor 1 (5) is fixedly mounted on fixed plate 1, and fixed plate 1 is fixedly connected to the construction shell (1); The upper left and right sides of the base (8) are symmetrically provided with slideways (11), a slider (12) is slidably provided in the slideways (11), the slider (12) is fixedly connected to the support positioning mechanism, the support positioning mechanism comprises a support assembly and a positioning assembly, the support assembly comprises a base block (9), the lower left and right sides of the base block (9) are respectively fixedly connected to the slider (12), the middle of the base block (9) is provided with a mounting opening through the front and rear ends, a lifting rod (22) is rotatably provided in the mounting opening, and the cylindrical section of the lifting rod (22) is fixed to the bevel gear (29). The threaded section of the lifting rod (22) is threadedly connected to the lifting sleeve (30), the lifting sleeve (30) passes through the upper end of the installation opening and is fixedly connected to the lower end of the lifting seat (10), the left and right ends of the lifting seat (10) are respectively slidably connected to the left and right ends of the base block (9), the bevel gear 2 (29) is meshed with the bevel gear 1 (28), the bevel gear 1 (28) is fixedly connected to the motor 2 (13), the motor 2 (13) is fixedly installed on the fixing plate 2, and the fixing plate 2 is fixedly arranged at one end of the base block (9) away from the construction shell (1); The support assembly further comprises support plates (23) symmetrically arranged on the left and right sides of the upper end of the lifting seat (10), support blocks (27) symmetrically arranged on the front and rear sides of the upper end of the support plates (23), support shafts rotatably arranged at the ends of the support blocks (27) on the front and rear sides close to each other, a support shell (25) fixedly arranged between the support shafts on the front and rear sides, a support groove arranged at the upper end of the support shell (25), and a plurality of support rollers (26) evenly arranged in the support groove in the up-down direction; The positioning assembly comprises a mounting seat (32), the mounting seat (32) being arranged in a corresponding bayonet on the right side of the upper end of the base (8), a mounting plate 1 (33) being fixedly arranged on the lower side of the left end of the mounting seat (32), springs 2 (38) being symmetrically arranged on the left and right sides of the upper end of the mounting plate 1 (33), springs 2 (38) being fixedly connected to a mounting block 1 (34), the upper end of the mounting block 1 (34) being fixedly connected to a positioning block 1 (35), the right end of the mounting block 1 (34) being fixedly connected to a rack (37), the rack (37) being meshed with a gear 3 (40), the gear 3 (40) being fixedly connected to a mounting shaft, the mounting shaft being rotatably arranged in a mounting groove (59) at the left end of the mounting seat (32), the mounting shaft passing through the mounting groove (59) away from the construction shell One end of (1) is fixedly connected to bevel gear three (41), bevel gear three (41) is meshed with bevel gear four (42), bevel gear four (42) is fixedly connected to threaded sleeve (43), threaded sleeve (43) is rotatably connected to mounting block two (45), mounting block two (45) is fixedly arranged at one end of mounting seat (32) away from construction shell (1), threaded sleeve (43) is threadedly connected to threaded rod one (44), threaded rod one (44) is fixedly connected to mounting plate two (36), the lower end of mounting plate two (36) is fixedly connected to positioning block two (46), the center of positioning block one (35) along the horizontal direction, the center of positioning block two (46) along the horizontal direction and the center of the docking interface are in the same vertical plane along the front-rear direction; The end of the mounting block 1 (34) close to the construction shell (1) is fixedly connected to the sliding block 1 (39), the sliding block 1 (39) is slidably connected to the end of the mounting seat (32) close to the construction shell (1), the sliding block 1 (39) is fixedly connected to the mounting block 3, a scale line 2 is provided at the upper edge of the mounting block 3, the mounting block 3 is rotatably connected to the cylindrical section of the threaded rod 2 (48), the threaded section of the threaded rod 2 (48) is threadedly connected to the adjustment block (64), the adjustment block (64) is fixedly connected to the sliding block 2 (63), the sliding block 2 (63) is slidably connected to the right end of the mounting seat (32), the sliding block 2 (63) is matched with the guide opening (62) and the sliding cavity (61), the guide opening (62) is arranged at the lower end of the guide block (31), the sliding cavity (61) is arranged at the left end of the guide block (31), and the sliding cavity (61) is arranged at the left end of the guide block (31). The movable cavity (61) is connected to the guide opening (62) in upper and lower directions. The guide block (31) is fixedly arranged on the right side of the construction shell (1). The upper end of the threaded rod (48) is rotatably connected to the mounting block (4). The lower end of the threaded rod (48) is fixedly connected to the operating block. The mounting block (4) and the adjusting block (64) are respectively slidably connected to the sliding block (47). The sliding block (47) is slidably connected to the end of the mounting seat (32) away from the construction shell (1). A scale block (66) is provided at the end of the sliding block (47) away from the mounting seat (32). The scale on the scale block (66) is arranged corresponding to the scale line 1 (65) on the adjusting block (64) and the scale line 2 on the mounting block 3. After the sliding block (63) is matched with the sliding cavity (61), the scale line 1 (65) and the center of the docking port are in the same horizontal plane along the front-rear direction.

2. The installation structure for pipeline construction according to claim 1, characterized in that: The upper end of the construction shell (1) is provided with a construction opening 1 (4), and the left and right ends of the construction shell (1) are respectively provided with a construction opening 2 (3) and a walking board (2), the walking board (2) being arranged correspondingly at the lower side of the construction opening 2 (3), and the construction opening 1 (4) and the construction opening 2 (3) are respectively connected to the construction cavity (7).

3. The installation structure for pipeline construction according to claim 1, characterized in that: The locking mechanism also includes a locking mechanism, which includes a threaded hole 1 (24) provided at one end of the lifting seat (10) away from the construction shell (1), a locking plate (67) fixedly provided at one side of the lower end of the lifting seat (10) away from the construction shell (1), a plurality of threaded holes 3 provided on the locking plate (67), the threaded hole 1 (24) and the plurality of threaded holes 3 being evenly spaced in the up-down direction, the threaded hole 1 (24) or the plurality of threaded holes 3 being threadedly connected to a rear threaded section of a threaded rod 3 (57), a middle cylindrical section of the threaded rod 3 (57) passing through an end of the mounting seat (32) close to the construction shell (1) and being rotatably connected to two sliding plates (60), the two sliding plates (60) being slidably arranged in the mounting groove (59), a fixed gear (58) being fixedly provided between the two sliding plates (60), the fixed gear (58) being meshed with a gear 3 (40) correspondingly, the front threaded section of the threaded rod 3 (57) being threadedly connected to a rear threaded section of the mounting seat (32) away from the construction shell (1 ) is threadedly connected to the threaded hole 2 at one end of the mounting base (32), and the threaded rod 3 (57) passes through the threaded hole 2 and is fixedly connected to the rotating disk (52). The rotating disk (52) is eccentrically provided with an eccentric hole. The eccentric hole is slidably connected to the eccentric rod (55). The eccentric rod (55) corresponds to a positioning hole provided at one end of the mounting base (32) away from the construction shell (1). The eccentric rod (55) is fixedly connected to the limit block (56). A spring is fixedly provided between the limit block (56) and the rotating disk (52). The spring (54) is sleeved on the eccentric rod (55), one end of the eccentric rod (55) away from the positioning hole is fixedly connected to the control block (53), the two sliding plates (60) are fixedly connected to the L-shaped block (49), the L-shaped block (49) is fixedly connected to the locking bevel gear (50), the locking bevel gear (50) is correspondingly meshed with the locking bevel gear (51), and the locking bevel gear (51) is fixedly connected to the cylindrical section of the threaded rod (48).

4. An installation method for pipeline construction, which is installed using the installation structure for pipeline construction according to any one of claims 1 to 3, characterized in that: The following steps are involved: Step 1: placing two pipes to be spliced ​​on the supporting and positioning mechanisms of the bases (8) arranged front and back respectively; Step 2: Control the front and rear distributed support positioning mechanisms to work, adjust the positions of the two pipes to be spliced, so that the central axes of the two pipes to be spliced ​​and the center of the butt joint are in the same straight line along the front and rear direction; Step 3: Control the front and rear distributed support positioning mechanisms to slide toward the construction shell (1) so that the two pipes to be spliced ​​extend into the docking port; Step 4: Control the centering mechanism distributed in the front and rear to work, and re-position and calibrate the side of the two pipes to be spliced ​​close to the butt joint; Step 5: Then, the front and rear distributed support positioning mechanisms are controlled to continue sliding toward the construction shell (1), so that the two pipes to be spliced ​​are extended into the construction cavity (7) to complete the docking; Step 6: The construction personnel install and fix the two pipes to be spliced ​​in the construction cavity (7).

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