A pipe welding and docking equipment for water diversion projects

Abstract

This invention relates to the field of welding equipment technology and provides a pipe welding and docking device for water diversion projects. The device includes a base, a support frame, an outer fixing sleeve, and an inner fixing sleeve. It also includes a fixing mechanism and a welding mechanism. The fixing mechanism includes a fixing component, a linkage component, and a control component. The welding mechanism includes an assembly mechanism, a welding torch, and a control mechanism. This pipe welding and docking device for water diversion projects adopts a modular design. During construction operations in areas with limited power, the two inner fixing sleeves, through the fixing mechanism, individually center and clamp the two pipes to be docked, ensuring the docking accuracy of the two pipes. The control mechanism, in conjunction with the assembly mechanism, allows the welding torch to be precisely aligned with the docking point of the two pipes, enabling effective and thorough welding of the joint and ensuring the welding quality.

Description

Technical Field

[0001] This invention belongs to the field of welding equipment technology, and in particular relates to a pipe welding and docking equipment for water diversion projects. Background Technology

[0002] Water diversion projects refer to engineering projects that artificially transport water resources from water source areas to water demand areas, aiming to solve problems such as uneven water resource distribution and insufficient water supply. The South-to-North Water Diversion Project is an example of a water diversion project. Water diversion projects can be divided into large-scale inter-basin water diversion projects, medium-sized regional water diversion projects, and small-scale local water diversion projects. Pipeline connection is one of the unavoidable operational tasks during the construction of water diversion projects.

[0003] The existing pipeline welding and docking equipment for water diversion projects includes a base, a displacement mechanism, an adjustment mechanism and a welding mechanism. The displacement mechanism is provided on the upper surface of the base, and the adjustment mechanism is provided on the upper side of the displacement mechanism. The welding mechanism is provided in the middle of the upper surface of the base.

[0004] While existing welding and butt welding equipment can achieve circumferential welding of pipes, its fixed weld joint design limits its application due to the inability to flexibly adjust to different pipe diameters. Furthermore, the displacement and adjustment mechanisms in these devices typically rely on electrically driven components, which is particularly inconvenient when working in areas with insufficient power supply. Additionally, existing equipment is large in size, occupies a significant amount of space, and is not convenient for rapid transportation.

[0005] Therefore, in view of the above situation, there is an urgent need to develop a pipe welding and docking equipment for water diversion projects to overcome the shortcomings in current practical applications. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a pipe welding and docking equipment for water diversion projects, so as to solve the problems in the background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A pipe welding and docking device for water diversion projects includes a base with two symmetrically fixed support frames. Each support frame is bolted with an outer fixing sleeve. An inner fixing sleeve is fixed inside the outer fixing sleeve. Grooves are formed on both sides of the inner fixing sleeve. One groove has a circular track, and the other groove has an annular groove on its outer side. The grooves on the two inner fixing sleeves are close to each other. The device also includes:

[0009] The fixing mechanism includes a fixing component, a linkage component, and a control component. The fixing components are circumferentially equidistantly distributed in a groove on the inner fixing sleeve away from the slide groove. One end of the fixing component extends out of the groove. Adjacent fixing components are connected as a whole by a linkage component. One end of the control component is fixed to and connected to a fixing component.

[0010] The control component drives a fixed component connected to it to deflect towards the axis closer to the inner fixed sleeve by manual rotation. The fixed component drives the two adjacent fixed components to deflect synchronously through the linkage component. Multiple fixed components located in the same groove complete the centering, clamping and fixing of the pipe by synchronous deflection. The two inner fixed sleeves independently center, clamp and fix the two pipes to be connected by cooperating with the fixing mechanism.

[0011] A welding mechanism, comprising an assembly mechanism, a welding torch, and a control mechanism, wherein both ends of the assembly mechanism extend into adjacent grooves on two inner fixed sleeves and slide in cooperation with slides in the two grooves respectively; a welding torch is fixed on the assembly mechanism; one end of the control mechanism is rotatably mounted in a slide groove, and the other end of the control mechanism extends out of the slide groove and is connected to the assembly mechanism; the control mechanism is concentric with the inner fixed sleeves.

[0012] The assembly mechanism fixes the welding torch and quickly adjusts the welding angle, welding position, and welding direction of the welding torch. The control mechanism drives the assembly mechanism and the welding torch on it to rotate by manually sliding it in the chute. The center of rotation of the welding torch is in the same position as the center of the pipe. The welding torch rotates around the joint of the two pipes and welds them.

[0013] As a further technical solution of the present invention, the fixing component includes:

[0014] Mounting blocks are circumferentially and equidistantly distributed within the groove, with one side of each mounting block extending outside the groove;

[0015] A mounting bracket fixed to one side of the mounting block, one of the mounting brackets having an adjustment component mounted on it;

[0016] The mounting shaft mounted on the mounting bracket is rotated, and the two ends of the mounting shaft are respectively connected to the mounting shafts on two adjacent mounting brackets through a linkage component. The control component is connected to the mounting shaft on one mounting bracket.

[0017] A V-shaped rod fixedly connected at one end to a mounting shaft; and

[0018] A fixed base is rotatably mounted on the other end of the V-shaped rod, and a fixing plate is installed on the side of the fixed base near the axis of the inner fixing sleeve.

[0019] As a further technical solution of the present invention, the linkage component includes:

[0020] Universal joints installed on both ends of the mounting shaft; and

[0021] The linkage rods are circumferentially distributed on one side of the inner fixed sleeve and on the same side as the mounting bracket. One of the linkage rods is located between two adjacent mounting brackets, and the two ends of the linkage rod are respectively connected to two universal joints close to each other on two adjacent mounting shafts.

[0022] As a further technical solution of the present invention, the control component includes:

[0023] A connecting bracket that is vertically fixed to a mounting frame;

[0024] Rotate the worm gear mounted on the connecting frame;

[0025] A control handle rotatably mounted on a connecting frame and fixedly connected to a worm gear, the control handle being concentric with the worm gear; and

[0026] A worm gear is fixed on a mounting shaft, and the worm gear meshes with a worm.

[0027] As a further technical solution of the present invention, the assembly mechanism includes:

[0028] An assembly component extending at both ends into adjacent grooves on two inner fixing sleeves, with each end of the assembly component slidably engaging with slide rails within the two grooves. Each end of the assembly component is connected to a control mechanism mounted on one of the two inner fixing sleeves.

[0029] A connecting component installed in the middle of the assembly assembly, wherein a welding torch is mounted on the connecting component.

[0030] As a further technical solution of the present invention, the assembly component includes:

[0031] An assembly rod is located between two inner fixed sleeves. Both ends of the assembly rod are provided with threaded teeth and limiting plates. The assembly rod is movably connected to the control mechanism. A connecting component is installed in the middle of the assembly rod.

[0032] A pulley that slides in conjunction with a slide rail, the pulley being disposed at both ends of the assembly rod and sliding in conjunction with a limiting piece;

[0033] A limiting bracket that slides in cooperation with the side wall of the inner fixing sleeve, the limiting bracket being slidably disposed at both ends of the assembly rod, the limiting bracket restricting the assembly rod between the two inner fixing sleeves by cooperating with the threaded teeth and nuts.

[0034] As a further technical solution of the present invention, the connection component includes:

[0035] A first mounting sleeve is secured to the outside of the assembly rod by a set screw. The first mounting sleeve is concentric with the assembly rod, and the first mounting sleeve and the assembly rod are horizontally slidably connected.

[0036] A second mounting sleeve is secured to the outside of the first mounting sleeve by a set screw, and the second mounting sleeve is circumferentially slidably connected to the first mounting sleeve; and

[0037] Two fixing clips are fixed to one side of the second mounting sleeve, and the two fixing clips are locked together to fix the welding gun.

[0038] As a further technical solution of the present invention, the control mechanism includes:

[0039] A circular slider is slidably installed within a groove;

[0040] A control handle is located outside the circular slider and is fixedly connected to its outer wall;

[0041] A connecting rod with one end fixedly connected to the outer wall of a circular slider, and the other end of the connecting rod extending between two inner fixed sleeves;

[0042] A connecting sleeve is fixed to the other end of the connecting rod, and the inner wall of the connecting sleeve is slidably connected to the outer wall of the assembly rod.

[0043] Compared with the prior art, the beneficial effects of the present invention are:

[0044] Since the support frame and the outer fixed sleeve are connected by bolts, in actual transportation, the support frame and the equipment base are integrated, while the outer fixed sleeve, the inner fixed sleeve and the fixing mechanism and welding mechanism on them are integrated, making the equipment a separate modular unit. This not only allows the equipment to be quickly transferred to areas with scarce power, but also reduces the space occupied by the equipment during transportation, thereby reducing the transportation cost and transportation time.

[0045] In this equipment, the welding torch is the only electrically powered component; the remaining fixing, assembly, and control mechanisms are all manually operated. This allows for the delivery of a limited amount of power to the welding torch in areas with limited electricity, while the remaining components can be manually operated to ensure the rapid welding of two pipes while maintaining the quality and efficiency of the connection.

[0046] The two inner fixing sleeves can work together with the fixing mechanism to individually center, clamp and fix the two pipes that need to be connected, ensuring the connection accuracy of the two pipes. Even in areas with scarce power, the equipment can quickly center and clamp the pipes, thereby improving the connection quality of the two pipes.

[0047] The assembly mechanism not only fixes the welding torch but also allows for rapid adjustment of its welding angle, position, and direction. This ensures the torch is precisely aligned with the joint of two pipes, guaranteeing effective and thorough welding. The control mechanism, manually sliding within a groove, rotates the assembly mechanism and its welding torch, aligning the torch's rotation center with the pipe's center. This ensures accurate circular welding around the joint, guaranteeing high-quality pipe welding even in areas with limited power.

[0048] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0049] Figure 1 This is a first-view structural schematic diagram of the pipeline welding and docking equipment for water diversion projects provided in an embodiment of the present invention.

[0050] Figure 2 This is a second-view structural schematic diagram of the pipeline welding and docking equipment for water diversion projects provided in an embodiment of the present invention.

[0051] Figure 3 This is a front view of the structure of the pipe welding and docking equipment for water diversion projects provided in an embodiment of the present invention.

[0052] Figure 4 This is a structural side view of the pipe welding and docking equipment for water diversion projects provided in an embodiment of the present invention.

[0053] Figure 5 for Figure 2 Exploded view of the inner fixing sleeve and control mechanism.

[0054] Figure 6 for Figure 2 A schematic diagram of the structure of the fixed component, linkage component and control component.

[0055] Figure 7 for Figure 6 Enlarged view of the structure at point A in the middle.

[0056] Figure 8 for Figure 1 A schematic diagram of the assembly mechanism.

[0057] Reference numerals: 100-Equipment base, 200-Support frame, 300-Outer fixing sleeve, 400-Inner fixing sleeve, 410-Groove, 420-Slide rail, 430-Slide groove, 500-Fixing mechanism, 510-Fixing component, 511-Mounting block, 512-Mounting bracket, 513-V-bar, 514-Mounting shaft, 515-Fixing base, 516-Fixing plate, 520-Linkage component, 521-Linkage rod, 522-Universal connector, 530-Control component, 531-Connecting bracket, 5 32-worm gear, 533-worm wheel, 534-adjusting handle, 600-assembly mechanism, 610-assembly component, 611-assembly rod, 612-threaded tooth, 613-limiting piece, 614-pulley, 615-limiting bracket, 620-connecting component, 621-first mounting sleeve, 622-set screw, 623-second mounting sleeve, 624-fixing clamp, 700-welding torch, 800-control mechanism, 810-circular slider, 820-control handle, 830-connecting rod, 840-connecting sleeve. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0059] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0060] like Figures 1 to 8 As shown, a pipe welding and docking device for water diversion projects provided as an embodiment of the present invention includes a device base 100, on which two support frames 200 are symmetrically fixed. An outer fixing sleeve 300 is bolted to each of the two support frames 200. An inner fixing sleeve 400 is fixed inside the outer fixing sleeve 300. Grooves 410 are formed on both sides of the inner fixing sleeve 400. A circular track 420 is formed in one groove 410, and an annular groove 430 is formed on the outer side of the other groove 410. The grooves 430 on the two inner fixing sleeves 400 are close to each other. The device also includes:

[0061] The fixing mechanism 500 includes a fixing component 510, a linkage component 520, and an adjustment component 530. The fixing components 510 are circumferentially equidistantly distributed in a groove 410 on the inner fixing sleeve 400 away from the slide groove 430. One end of the fixing component 510 extends outside the groove 410. Two adjacent fixing components 510 are connected as a whole by the linkage component 520. One end of the adjustment component 530 is fixed to and connected to a fixing component 510.

[0062] The control component 530 can be manually rotated to drive a fixed component 510 connected to it to deflect towards the axis closer to the inner fixed sleeve 400. One fixed component 510 drives the two adjacent fixed components 510 to deflect synchronously through the linkage component 520. Similarly, multiple fixed components 510 located in the same groove 410 can complete the centering clamping and fixing of the pipe by synchronous deflection. The two inner fixed sleeves 400 can cooperate with the fixing mechanism 500 to center, clamp and fix the two pipes to be connected, ensuring the connection accuracy of the two pipes. Even in areas with scarce power, the equipment can quickly center and clamp the pipes, thereby improving the connection quality of the two pipes.

[0063] The welding mechanism includes an assembly mechanism 600, a welding torch 700, and a control mechanism 800. Both ends of the assembly mechanism 600 extend into adjacent grooves 410 on two inner fixing sleeves 400 and slide in conjunction with slide rails 420 within the two grooves 410. The welding torch 700 is fixed to the assembly mechanism 600. One end of the control mechanism 800 is rotatably mounted within a slide groove 430, and the other end extends outside the slide groove 430 and is connected to the assembly mechanism 600. The control mechanism 800 is concentric with the inner fixing sleeves 400.

[0064] The assembly mechanism 600 not only fixes the welding torch 700, but also allows for rapid adjustment of the welding angle, welding position, and welding direction of the welding torch 700. This ensures that the welding torch 700 can be precisely aligned with the joint of the two pipes, effectively and fully welding the joint. The control mechanism 800, by manually sliding within the slide groove 430, can rotate the assembly mechanism 600 and the welding torch 700, with the center of rotation of the welding torch 700 aligned with the center of the pipe. This ensures that the welding torch 700 can accurately perform circumferential welding around the joint of the two pipes, guaranteeing the welding quality even in areas with limited power.

[0065] In this embodiment, since the support frame 200 and the outer fixing sleeve 300 are connected by bolts, in actual transportation, the support frame 200 and the equipment base 100 are integrated, while the outer fixing sleeve 300, the inner fixing sleeve 400 and the fixing mechanism 500 and welding mechanism on them are integrated. This not only allows the equipment to be quickly transferred to areas with scarce power, but also reduces the space occupied by the equipment during transportation, thereby reducing the transportation cost and transportation time of the equipment.

[0066] In this equipment, the welding torch 700 is the only electrical component. The other components, such as the fixing mechanism 500, the assembly mechanism 600, and the control mechanism 800, are all manual components. This allows the limited amount of power supplied to the welding torch 700 to be delivered in areas with scarce electricity. At the same time, the other components can be manually operated to complete the rapid welding of the two pipes while ensuring the quality and efficiency of the connection.

[0067] like Figures 2 to 6 As shown, in a preferred embodiment of the present invention, the fixing component 510 includes a mounting block 511, a mounting bracket 512, a V-shaped rod 513, a mounting shaft 514, a fixing base 515, and a fixing plate 516. The mounting blocks 511 are circumferentially equidistantly distributed within the groove 410. One side of each mounting block 511 extends outside the groove 410 and is fixed with the mounting bracket 512. The mounting shaft 514 is rotatably mounted on the mounting bracket 512. Both ends of the mounting shaft 514 are respectively connected to two adjacent mounting blocks via a linkage component 520. The mounting shaft 514 on the bracket 512 is connected, and the V-shaped rods 513 are circumferentially distributed on one side of the inner fixed sleeve 400. One end of the V-shaped rod 513 is fixedly connected to the mounting shaft 514, and a fixed base 515 is rotatably mounted on the other end of the V-shaped rod 513. A fixed plate 516 is mounted on the fixed base 515 near the axis of the inner fixed sleeve 400. An adjustment component 530 is mounted on one of the mounting brackets 512, and the adjustment component 530 is connected to the mounting shaft 514 on one of the mounting brackets 512.

[0068] In this embodiment, the control component 530 can manually rotate one of its connected mounting shafts 514. One mounting shaft 514, through the linkage component 520, drives the rotation of two adjacent mounting shafts 514. Similarly, multiple mounting shafts 514 simultaneously drive their respective V-shaped rods 513 to deflect. These V-shaped rods 513 drive their respective fixed bases 515 and fixed plates 516 to deflect towards the axis closer to the inner fixed sleeve 400. Since the fixed base 515 can be rotated and adjusted to a certain extent by the V-shaped rods 513, during the deflection process, the fixed plate 516 is positioned relative to the fixed base 515. The 516 plate can be rotated to a certain extent to ensure that it can fully and effectively contact the outer wall of pipes of different diameters, thus ensuring the contact area between the fixing plate 516 and the outer wall of the pipe. Multiple fixing plates 516 can complete the centering clamping and fixing of the pipe through synchronous deflection and rotation adjustment, and improve the clamping stability of the pipe. The two inner fixing sleeves 400 can cooperate with the fixing mechanism 500 to individually center and clamp the two pipes to be connected, ensuring the connection accuracy of the two pipes. Even in areas with scarce power, the equipment can quickly center and clamp the pipes, thereby improving the connection quality of the two pipes.

[0069] In a preferred embodiment, the V-shaped bar 513 can be replaced with other shapes that meet the requirements, such as an L-shaped bar or a T-shaped bar, etc.

[0070] A soft pad is fixed to the inner side of the fixing plate 516. The soft pad can not only increase the friction between the fixing plate 516 and the outer wall of the pipe and improve the clamping stability of the fixing plate 516 on the pipe, but also prevent the fixing plate 516 from damaging the outer wall of the pipe, ensuring the quality of the pipe during the docking process and ensuring the aesthetics of the pipe.

[0071] like Figures 2 to 6 As shown, in a preferred embodiment of the present invention, the linkage assembly 520 includes a linkage rod 521 and a universal joint 522. The universal joint 522 is installed on both ends of the mounting shaft 514. The linkage rods 521 are circumferentially distributed on one side of the inner fixing sleeve 400 and on the same side as the mounting bracket 512. One linkage rod 521 is located between two adjacent mounting brackets 512. The two ends of one linkage rod 521 are respectively connected to two universal joints 522 that are close to each other on two adjacent mounting shafts 514.

[0072] In this embodiment, when one of the mounting shafts 514 rotates, it drives the two universal joints 522 on both ends of the mounting shaft 514 to rotate. One universal joint 522 drives another universal joint 522 on its adjacent mounting shaft 514 through the linkage rod 521, so that the multiple mounting shafts 514 distributed circumferentially rotate synchronously. The multiple mounting shafts 514 simultaneously drive their respective V-shaped rods 513 to deflect. The multiple V-shaped rods 513 drive their respective fixed bases 515 and fixed plates 516 to deflect towards the axis closer to the inner fixed sleeve 400, thereby completing the centering, clamping and fixing of the pipeline.

[0073] In a preferred embodiment, the linkage rod 521 preferably adopts a linkage 830 structure with locking and telescopic functions. The locking function on the linkage rod 521 is for its telescopic function. When it is necessary to reduce or decrease the number of fixing plates 516, in order to ensure the centering and clamping of the pipe, the positions of the mounting bracket 512 and the mounting shaft 514 need to be adjusted so that they are circumferentially distributed on one side of the inner fixing sleeve 400. At this time, the linkage rod 521 is required to have a telescopic function so that it can effectively connect the adjusted multiple mounting shafts 514 to ensure the stability of the clamping work. After it has completed telescopic movement, the locking function can lock the linkage rod 521 and prevent it from telescopically moving. This can also limit the installation position of the mounting bracket 512 and the mounting shaft 514, further improving the clamping stability of the pipe.

[0074] like Figures 2 to 6As shown, in a preferred embodiment of the present invention, the control assembly 530 includes a connecting frame 531, a worm gear 532, a worm wheel 533, and a control handle 534. The connecting frame 531 is vertically fixed on a mounting frame 512. The worm gear 532 and the control handle 534 are rotatably mounted on the connecting frame 531. The control handle 534 is fixedly connected to one end of the worm gear 532 and is concentric with it. The worm gear 532 meshes with the worm wheel 533 fixed on a mounting shaft 514.

[0075] In this embodiment, the manual control handle 534 drives the worm gear 532 to rotate, which in turn drives the worm wheel 533 to rotate. The worm wheel 533 then drives a connected mounting shaft 514 to rotate, thereby completing the centering, clamping, and fixing of the pipe. The two inner fixing sleeves 400 can cooperate with the fixing mechanism 500 to individually center, clamp, and fix the two pipes to be connected, ensuring the connection accuracy of the two pipes. Even in areas with limited power, the equipment can quickly center and clamp the pipes, thereby improving the connection quality of the two pipes.

[0076] In a preferred embodiment, the transmission combination of the worm 532 and the worm wheel 533 has a certain self-locking property, so that after the connection with the control handle 534 is released, the fixing plate 516 can still stably clamp the pipe, ensuring the docking quality and docking efficiency of the pipe.

[0077] like Figure 1 , Figure 4 and Figure 8 As shown, in a preferred embodiment of the present invention, the assembly mechanism 600 includes an assembly component 610 and a connecting component 620. The two ends of the assembly component 610 extend into the grooves 410 on the two inner fixing sleeves 400 that are close to each other and slide in the slide rails 420 in the two grooves 410 respectively. The two ends of the assembly component 610 are respectively connected to the control mechanism 800 installed on the two inner fixing sleeves 400. The connecting component 620 is installed in the middle of the assembly component 610, and a welding torch 700 is installed on the connecting component 620.

[0078] In this embodiment, the connecting component 620 can adjust the position, angle, and direction of the welding torch 700 on the assembly component 610, so that the welding torch 700 can be accurately aligned with the joint of the two pipes regardless of the pipe diameter, ensuring that the welding torch 700 can effectively and fully weld the joint of the two pipes. The control mechanism 800 can drive the assembly component 610 to slide in the slide 420 by manually sliding in the slide groove 430. The assembly component 610 drives the welding torch 700 to rotate through the connecting component 620, and the center of rotation of the welding torch 700 is in the same position as the center of the pipe, ensuring that the welding torch 700 can accurately perform circumferential rotation welding around the joint of the two pipes. Even when working in areas with low power supply, the welding quality of the welding torch 700 on the pipes can be ensured.

[0079] like Figure 1 , Figure 4 and Figure 8 As shown, in a preferred embodiment of the present invention, the assembly component 610 includes an assembly rod 611, a threaded tooth 612, a limiting piece 613, a pulley 614, and a limiting frame 615. The assembly rod 611 is located between two inner fixing sleeves 400. Both ends of the assembly rod 611 are provided with threaded teeth 612 and limiting pieces 613. The assembly rod 611 is movably connected to the control mechanism 800. The pulley 614 is slidably engaged with the limiting piece 613 and is also slidably engaged with the slide rail 420. The assembly rod 611 is connected to the pulley 614 as a whole through the threaded tooth 612, the nut, and the limiting piece 613. The two ends of the assembly rod 611 are also slidably mounted with limiting frames 615 that are slidably engaged with the side walls of the inner fixing sleeves 400. The threaded tooth 612 can fix the installation position of the limiting frame 615 by engaging with the nut.

[0080] In this embodiment, the control mechanism 800 can drive the assembly rod 611 to rotate around the axis of the inner fixed sleeve 400 by manually sliding it in the slide groove 430. The assembly rod 611 drives the pulley 614 to slide in the slide rail 420 through the limiting piece 613, and drives the connecting assembly 620 and the welding gun 700 on it to rotate. Even in areas with low power supply, the welding quality of the welding gun 700 to the pipeline can be ensured.

[0081] In a preferred embodiment, the limiting piece 613 preferably adopts a "I"-shaped piece structure;

[0082] The limiting frame 615 preferably adopts an "F"-shaped rod structure. Since the inner fixing sleeve 400 is a ring structure, the end faces of the limiting frame 615 that slide in contact with the side wall of the inner fixing sleeve 400 are all arc-shaped surfaces. This ensures that the limiting frame 615 can slide freely on the side wall of the inner fixing sleeve 400. At the same time, the limiting frame 615 can restrict the rotation of the assembly rod 611, preventing it from rotating and ensuring that the welding torch 700 can accurately weld the pipe joint.

[0083] like Figure 1 , Figure 4 and Figure 8 As shown, in a preferred embodiment of the present invention, the connecting assembly 620 includes a first mounting sleeve 621, a set screw 622, a second mounting sleeve 623, and a fixing clip 624. The first mounting sleeve 621 is locked to the outside of the assembly rod 611 by the set screw 622. The first mounting sleeve 621 is concentric with the assembly rod 611 and is horizontally slidably connected to the assembly rod 611. The second mounting sleeve 623 is locked to the outside of the first mounting sleeve 621 by the set screw 622 and is circumferentially slidably connected to the first mounting sleeve 621. Two fixing clips 624 are fixed on one side of the second mounting sleeve 623. The two fixing clips 624 fix the welding torch 700 by locking each other.

[0084] In this embodiment, the first mounting sleeve 621 slides horizontally on the assembly rod 611, which can change the horizontal position of the welding torch 700, allowing it to move horizontally to the desired position. The second mounting sleeve 623 rotates on the first mounting sleeve 621, which can drive the welding torch 700 to rotate, thereby changing the welding angle and welding direction of the welding torch 700. At the same time, it can also change the distance between the welding torch 700 and the pipe to a certain extent, so that the welding torch 700 can fully and effectively contact the pipe joint. In addition, the fixing clip 624 can fix the welding torch 700 at different positions, thereby changing the straight distance between the welding torch 700 and the pipe, expanding the adjustment stroke of the welding torch 700, so that the welding torch 700 can effectively weld pipes of different diameters, improving the pipe jointing efficiency and jointing quality.

[0085] In a preferred embodiment, the fixing clip 624 is preferably a sheet-like structure with elasticity;

[0086] Both the first mounting sleeve 621 and the second mounting sleeve 623 preferably adopt a circular cylindrical structure.

[0087] like Figure 1 , Figure 5 and Figure 8As shown, in a preferred embodiment of the present invention, the control mechanism 800 includes a circular slider 810, a control handle 820, a connecting rod 830, and a connecting sleeve 840. The circular slider 810 is slidably installed in the slide groove 430. The control handle 820 is disposed outside the circular slider 810 and fixedly connected to its outer wall. One end of the connecting rod 830 is fixedly connected to the outer wall of the circular slider 810, and the other end of the connecting rod 830 extends between the two inner fixing sleeves 400 and is fixedly connected to the outer wall of the connecting sleeve 840. The inner wall of the connecting sleeve 840 is slidably connected to the outer wall of the assembly rod 611.

[0088] In this embodiment, the control handle 820 is manually controlled to drive the circular slider 810 to slide within the groove 430. The circular slider 810 drives the connecting rod 830 to rotate. The connecting rod 830 drives the assembly rod 611 to rotate around the axis of the inner fixed sleeve 400 through the connecting sleeve 840, thereby driving the welding torch 700 to rotate. The center of rotation of the welding torch 700 is in the same position as the center of the pipe, ensuring that the welding torch 700 can accurately perform circumferential welding around the joint of the two pipes. Even in areas with low power supply, the welding quality of the pipes by the welding torch 700 can be ensured.

[0089] In a preferred embodiment, the control handle 820 preferably adopts an annular columnar structure concentric with the inner fixing sleeve 400.

[0090] The working principle of this invention is:

[0091] The manual control handle 534 drives the worm gear 532 to rotate, which in turn drives the worm wheel 533 to rotate. The worm wheel 533 then drives a connected mounting shaft 514 to rotate. The mounting shaft 514 drives two universal joints 522 at its two ends to rotate. Each universal joint 522, via a linkage rod 521, drives a universal joint 522 on its adjacent mounting shaft 514, causing multiple mounting shafts 514, which are circumferentially equidistant, to rotate synchronously. These mounting shafts 514 simultaneously drive their respective V-shaped rods 513 to deflect, and the V-shaped rods 513 drive their respective fixed bases 515 and fixed plates 516 to deflect towards the axis closer to the inner fixed sleeve 400. Since the fixed base 515 can deflect to a certain extent by the V-shaped rods 513... The rotation adjustment allows the fixed base 515 and the fixed plate 516 to rotate to a certain extent on the fixed base 515 during the deflection process, so that the fixed plate 516 can fully and effectively contact the outer wall of the pipe with different diameters, ensuring the contact area between the fixed plate 516 and the outer wall of the pipe. Multiple fixed plates 516 can complete the centering clamping and fixing of the pipe through synchronous deflection and rotation adjustment, and improve the clamping stability of the pipe. The two inner fixing sleeves 400 can cooperate with the fixing mechanism 500 to individually center and clamp and fix the two pipes to be connected, ensuring the connection accuracy of the two pipes. Even in the construction operation in the power-deficient area, it can ensure that the equipment can quickly center and clamp the pipe.

[0092] The first mounting sleeve 621 slides horizontally on the assembly rod 611, which can change the horizontal position of the welding torch 700, allowing it to move horizontally to the desired position. The second mounting sleeve 623 rotates on the first mounting sleeve 621, which can drive the welding torch 700 to rotate, thereby changing the welding angle and welding direction of the welding torch 700. At the same time, it can also change the distance between the welding torch 700 and the pipe to a certain extent, so that the welding torch 700 can fully and effectively contact the joint of the pipe. In addition, the fixing clip 624 can fix the welding torch 700 at different positions, thereby changing the straight distance between the welding torch 700 and the pipe, expanding the adjustment stroke of the welding torch 700, and enabling the welding torch 700 to effectively weld pipes of different diameters.

[0093] The manual control handle 820 drives the circular slider 810 to slide within the groove 430. The circular slider 810 drives the connecting rod 830 to rotate. The connecting rod 830 drives the assembly rod 611 to rotate around the axis of the inner fixed sleeve 400 through the connecting sleeve 840. The assembly rod 611 drives the pulley 614 to slide within the slide 420 through the limiting piece 613, and drives the connecting assembly 620 and the welding torch 700 on it to rotate. The center of rotation of the welding torch 700 is in the same position as the center of the pipe, ensuring that the welding torch 700 can accurately perform circumferential rotation welding around the joint of the two pipes. Even in areas with low power supply, the welding quality of the welding torch 700 on the pipe can be ensured.

[0094] The above describes the working principle of the pipeline welding and docking equipment used in this water diversion project.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pipeline welding butt joint equipment for diversion water engineering, comprising an equipment base, two supporting frames are fixed symmetrically on the equipment base, an outer fixing sleeve is fixed on each of the two supporting frames through bolts, an inner fixing sleeve is fixed inside the outer fixing sleeve, grooves are formed on both sides of the inner fixing sleeve, a slide with a circular track is formed in one of the grooves, and an annular slide groove is formed on the outside of one of the grooves, the slide grooves on the two inner fixing sleeves are close to each other, characterized in that, Also include: The fixing mechanism includes a fixing assembly, a linkage assembly and a control assembly, the fixing assembly is circumferentially equidistantly distributed in a groove away from the sliding slot on the inner fixing sleeve, one end of the fixing assembly extends to the outside of the groove, and the adjacent two fixing assemblies are connected as a whole through the linkage assembly, one end of the control assembly is fixed on one fixing assembly and connected with it; The control assembly drives one fixing assembly connected with it to deflect towards the axis direction of the inner fixing sleeve by manual rotation, one fixing assembly drives the two adjacent fixing assemblies to deflect synchronously through the linkage assembly, and the multiple fixing assemblies located in the same groove complete the centering clamping and fixing of the pipeline through synchronous deflection, and the two inner fixing sleeves are separately clamped and fixed to the two pipelines to be connected through the cooperation with the fixing mechanism; The welding mechanism includes an assembly mechanism, a welding gun and a control mechanism, both ends of the assembly mechanism extend into the grooves on the two inner fixing sleeves respectively and are slidably connected with the two grooves respectively, the welding gun is fixed on the assembly mechanism, one end of the control mechanism is rotatably installed in the sliding slot, the other end of the control mechanism extends to the outside of the sliding slot and is connected with the assembly mechanism, and the control mechanism is coaxial with the inner fixing sleeve; The assembly mechanism fixes the welding gun and quickly adjusts the welding angle, welding position and welding direction of the welding gun, the control mechanism drives the assembly mechanism and the welding gun thereon to rotate by manually sliding in the sliding slot, and the rotation center of the welding gun is located at the same position as the center of the pipeline, the welding gun rotates around the joint of the two pipelines and welds them; The fixing assembly includes: The mounting blocks are circumferentially equidistantly distributed in the groove, and one side of the mounting block extends to the outside of the groove; The mounting bracket is fixed on one side of the mounting block, and the control assembly is installed on one mounting bracket; The mounting shaft is rotatably installed on the mounting bracket, both ends of the mounting shaft are connected with the mounting shafts on the adjacent two mounting brackets through the linkage assembly, and the control assembly is connected with the mounting shaft on one mounting bracket; The V-shaped rod is fixedly connected with one end of the mounting shaft; and The fixing base is rotatably installed on the other end of the V-shaped rod, and the fixing plate is installed on one side of the fixing base close to the axis of the inner fixing sleeve; The linkage assembly includes: The universal joint is installed on both ends of the mounting shaft; and The linkage rods are circumferentially equidistantly distributed on one side of the inner fixing sleeve and on the same side of the mounting bracket, one linkage rod is located between the adjacent two mounting brackets, and both ends of one linkage rod are connected with the two universal joints on the adjacent two mounting shafts close to each other.

2. The pipe welding butt joint apparatus for a diversion water project according to claim 1, characterized by The control assembly includes: The connecting bracket is perpendicularly fixed on one mounting bracket; The worm is rotatably installed on the connecting bracket; The control handle is rotatably installed on the connecting bracket and fixedly connected with the worm, and the control handle is coaxial with the worm; and The worm wheel is fixed on one mounting shaft, and the worm wheel is engaged with the worm.

3. The pipe welding butt joint apparatus for a diversion water project according to claim 1, wherein The assembly mechanism includes: Two ends of the assembly component extend into the recesses of the two inner fixing sleeves, and the two ends of the assembly component are in sliding fit with the two slides in the recesses, and the two ends of the assembly component are connected with the control mechanisms installed on the two inner fixing sleeves. The connecting assembly is installed in the middle of the assembly component, and the welding gun is installed on the connecting assembly.

4. The pipe welding butt joint apparatus for a diversion water project according to claim 3, characterized by The assembly component comprises: The assembly rod is located between the two inner fixing sleeves, and the two ends of the assembly rod are provided with threaded teeth and limiting sheets, the assembly rod is movably connected with the control mechanism, and the middle of the assembly rod is provided with the connecting assembly; The pulley is in sliding fit with the slide, and the pulley is arranged at the two ends of the assembly rod and in sliding fit with the limiting sheet; The limiting frame is in sliding fit with the side wall of the inner fixing sleeve, and the limiting frame is arranged at the two ends of the assembly rod, and the limiting frame limits the assembly rod between the two inner fixing sleeves by cooperation of the threaded teeth and the nut.

5. The pipe welding butt joint apparatus for a diversion water project according to claim 4, characterized by The connecting assembly comprises: The first mounting sleeve is locked on the outside of the assembly rod by the jack screw, the first mounting sleeve is concentric with the assembly rod, and the first mounting sleeve is in horizontal sliding connection with the assembly rod; The second mounting sleeve is locked on the outside of the first mounting sleeve by the jack screw, and the second mounting sleeve is in circumferential sliding connection with the first mounting sleeve; and The two fixing clamps are fixed on one side of the second mounting sleeve, and the two fixing clamps are fixed on the welding gun by locking each other.

6. The pipe welding butt joint apparatus for a water diversion project according to claim 4, wherein The control mechanism comprises: The circular slide is slidably installed in the sliding groove; The control handle is arranged on the outside of the circular slide and is fixedly connected with the outer wall of the circular slide; One end of the connecting rod is fixedly connected with the outer wall of the circular slide, and the other end of the connecting rod extends between the two inner fixing sleeves; The connecting sleeve is fixed on the other end of the connecting rod, and the inner wall of the connecting sleeve is in sliding connection with the outer wall of the assembly rod.

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