Quick butt-joint positioning device for water delivery pipeline suitable for freezing meteorological conditions

Abstract

The utility model discloses a quick butt-joint positioning device for a water delivery pipeline, which is suitable for freezing weather conditions and comprises two U-shaped frames, the two U-shaped frames are oppositely arranged in parallel, connecting columns are arranged among four corners of each U-shaped frame, and mounting adjusting structures are arranged on two adjacent sides of each U-shaped frame. The inner side of each n-shaped frame is connected with a fixing structure through two installation adjusting structures, the fixing structures are used for fixing pipelines, the two installation adjusting structures can accurately adjust the positions of the fixing structures up and down and left and right, and the pipelines are aligned and welded by adjusting the positions of the two fixing structures. The simple butt-joint positioning and fixing device is simple in structure and convenient to operate, greatly improves work efficiency and butt-joint precision, saves outdoor operation difficulty and time in extremely cold weather, and facilitates accurate welding construction of a groove.

Description

Technical Field

[0001] The utility model relates to a rapid butt-joint positioning device for a water conveyance pipeline applicable to freezing weather conditions, and belongs to the technical field of pipeline welding equipment. Background Art

[0002] China has a vast territory, and there are extremely low-temperature weather conditions in many regions. However, in the construction of pipeline projects, it is often encountered that the pipeline lines are arranged concentratedly and the distance between pipelines is narrow, making it impossible to set up a heat preservation operation shed. During the butt-joint and welding construction of pipelines, the traditional pipe opening butt-joint method is not easy to operate in the air or a narrow space. There are problems that it is not easy to align the pipes during butt-joint and the butt-joint welding quality is not easy to control, resulting in low work efficiency of pipeline butt-joint, more working hours invested, not only delaying the construction period, but also the welding quality cannot be effectively guaranteed. Therefore, we propose a rapid butt-joint positioning device for a water conveyance pipeline applicable to freezing weather conditions. Content of the Utility Model

[0003] The purpose of the utility model is to provide a rapid butt-joint positioning device for a water conveyance pipeline applicable to freezing weather conditions, which eliminates the traditional butt-joint operation, adopts a simple butt-joint positioning and fixing device, improves work efficiency and butt-joint accuracy, and is convenient for precise welding construction of the bevel.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a rapid butt-joint positioning device for a water conveyance pipeline applicable to freezing weather conditions, including two U-shaped frames, the two U-shaped frames are arranged parallel and opposite to each other, and connecting columns are arranged between the four corners. An installation and adjustment structure is arranged on the adjacent two sides of the U-shaped frame. Each inner side of the U-shaped frame is connected with a fixing structure through the two installation and adjustment structures. The fixing structure is used for fixing the pipeline. The two installation and adjustment structures can accurately adjust the position of the fixing structure up and down and left and right. By adjusting the positions of the two fixing structures, the pipelines are aligned for welding.

[0005] For the aforesaid rapid butt-joint positioning device for a water conveyance pipeline applicable to freezing weather conditions, the installation and adjustment structure includes a slider. A slideway is penetrated and opened on the side wall of the U-shaped frame. The slider is slidably clamped and installed in the slideway. The slider can slide along the slideway. A threaded hole is penetrated through the slider. A threaded column is penetrated and installed in the threaded hole. One end of the threaded column extending into the inner side of the U-shaped frame is connected with the fixing structure. A rotating rod is arranged at the other end of the threaded column. By rotating the threaded column through the rotating rod, the length of the threaded column extending out of the threaded hole can be adjusted, and thus the position of the fixing structure can be adjusted.

[0006] The aforementioned rapid docking and positioning device for a water conveyance pipeline applicable to freezing weather conditions, wherein the rotating rod includes a fixed rod, the fixed rod is fixedly installed at the end of the threaded column, and an extension rod is movably sleeved at one end of the fixed rod away from the threaded column. The extension rod adopts a telescopic structure, which can save effort during rotation and improve efficiency.

[0007] The aforementioned rapid docking and positioning device for a water conveyance pipeline applicable to freezing weather conditions, wherein the surface of the extension rod is provided with anti-slip patterns to facilitate holding the extension rod.

[0008] The aforementioned rapid docking and positioning device for a water conveyance pipeline applicable to freezing weather conditions, wherein the fixing structure includes a fixed clamp and a movable clamp. The fixed clamp and the movable clamp are buckled with each other to form a circular ring, and the pipeline is clamped within the circular ring formed by the fixed clamp and the movable clamp. One end of the fixed clamp and the movable clamp is hinged to each other, and ear plates are provided at the other ends of the fixed clamp and the movable clamp. The two ear plates are detachably connected by bolts. The threaded columns of the two installation and adjustment structures are both installed on the outer side wall of the fixed clamp, and the two threaded columns are perpendicular to each other. The threaded column and the fixed clamp can adopt a detachable installation method. The sizes of the fixed clamp and the movable clamp are selected according to the pipe diameter of the pipeline to be welded.

[0009] The aforementioned rapid docking and positioning device for a water conveyance pipeline applicable to freezing weather conditions, wherein a reinforcing cross beam corresponding to and parallel to the three sides of the U-shaped frame is provided in the middle between the four connecting columns to increase the strength of the overall frame structure.

[0010] The aforementioned rapid docking and positioning device for a water conveyance pipeline applicable to freezing weather conditions, wherein transverse grooves are penetrated through both of the two relatively positioned reinforcing cross beams, and a positioning rod is inserted into the two transverse grooves. When two pipelines are welded, the positioning rod can be clamped between the welds of the two pipelines to reserve a welding seam. The diameter of the positioning rod can be selected according to the reserved size of the welding seam.

[0011] The aforementioned rapid docking and positioning device for a water conveyance pipeline applicable to freezing weather conditions, wherein there are at least two positioning rods, which is convenient for positioning the distance between the welds and making the weld distances consistent.

[0012] The aforementioned rapid docking and positioning device for a water conveyance pipeline applicable to freezing weather conditions, wherein a laser emission device is provided on the outer surface of one of the fixing structures, and a receiving baffle corresponding to the position of the laser emission device is provided on the outer surface of the other fixing structure. A ring target is provided on the receiving baffle. The laser emission device emits visible laser rays, and precise adjustment can be performed according to the position of the laser rays projected on the receiving baffle.

[0013] The aforementioned rapid butt-joint positioning device for water conveyance pipelines applicable to freezing weather conditions has multiple laser emission devices evenly distributed in a ring along the corresponding fixed structure. Multiple receiving baffles are provided on the corresponding fixed structure and are in one-to-one correspondence with the positions of the laser emission devices to ensure adjustment accuracy.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects:

[0015] (1) The utility model adopts a simple butt-joint positioning and fixing device, which has a simple structure and is easy to operate, greatly improving work efficiency and butt-joint accuracy, saving the difficulty and time of outdoor operation in extremely cold weather, and facilitating precise groove welding construction.

[0016] (2) The utility model fixes the two pipelines to be welded on both sides through the fixed structure, and further adjusts the butt-joint position of the pipelines through the installation and adjustment structure. The operation is simple and convenient, saving time and effort, and greatly improving the welding work efficiency.

[0017] (3) The utility model precisely adjusts the butt-joint position of the welded pipelines through the laser emission device and the receiving baffle, with high adjustment accuracy and accurate position, effectively improving the welding quality.

[0018] (4) The utility model can make the weld distance accurate through the positioning rod, and the distances around the weld are the same, further improving the welding quality and reducing the difficulty of welding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 is a structural schematic diagram of two U-shaped frames of the utility model;

[0021] Figure 3 is a structural schematic diagram of the slider installation of the utility model;

[0022] Figure 4 is a structural schematic diagram of the rotating rod of the utility model;

[0023] Figure 5 is a structural schematic diagram of the installation of the laser emission device and the receiving baffle of the utility model.

[0024] Reference numerals: 1 - U-shaped frame, 2 - connecting column, 3 - installation and adjustment structure, 4 - fixed structure, 5 - slider, 6 - slideway, 7 - threaded hole, 8 - threaded column, 9 - rotating rod, 91 - fixed rod, 92 - extension rod, 10 - fixed clamp, 11 - movable clamp, 12 - ear plate, 13 - bolt, 14 - strengthening cross beam, 15 - transverse groove, 16 - positioning rod, 17 - laser emission device, 18 - receiving baffle.

[0025] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. Specific embodiments

[0026] Embodiment 1 of the present utility model: A rapid butt-joint positioning device for a water conveyance pipeline applicable to freezing weather conditions includes two U-shaped frames 1. The open side of the U-shaped frame 1 is convenient for placing the pipeline. The two U-shaped frames 1 are arranged parallel to each other and connection columns 2 are provided between the four corners. Mounting and adjusting structures 3 are provided on the adjacent sides of the U-shaped frame 1. Each inner side of the U-shaped frame 1 is connected to a fixing structure 4 through two mounting and adjusting structures 3. The fixing structure 4 is used to fix the pipeline. The two mounting and adjusting structures 3 can accurately adjust the position of the fixing structure 4 up and down and left and right. By adjusting the positions of the two fixing structures 4, the two sides of the pipeline to be welded are aligned for welding. The operation is simple and the efficiency is improved.

[0027] Embodiment 2 of the present utility model: A rapid butt-joint positioning device for a water conveyance pipeline applicable to freezing weather conditions includes two U-shaped frames 1. The open side of the U-shaped frame 1 is convenient for placing the pipeline. The two U-shaped frames 1 are arranged parallel to each other and connection columns 2 are provided between the four corners. Mounting and adjusting structures 3 are provided on the adjacent sides of the U-shaped frame 1. Each inner side of the U-shaped frame 1 is connected to a fixing structure 4 through two mounting and adjusting structures 3. The fixing structure 4 is used to fix the pipeline. The two mounting and adjusting structures 3 can accurately adjust the position of the fixing structure 4 up and down and left and right. By adjusting the positions of the two fixing structures 4, the two sides of the pipeline to be welded are aligned for welding. The operation is simple and the efficiency is improved.

[0028] The mounting and adjusting structure 3 includes a slider 5. A slideway 6 is penetrated and opened on the side wall of the U-shaped frame 1. The slider 5 is slidably clamped and installed in the slideway 6. The slider 5 can slide along the slideway 6. A threaded hole 7 is penetrated through the slider 5. A threaded column 8 is penetrated and installed in the threaded hole 7. One end of the threaded column 8 extending into the inner side of the U-shaped frame 1 is connected to the fixing structure 4. The other end of the threaded column 8 is provided with a rotating rod 9. By rotating the threaded column 8 through the rotating rod 9, the length of the threaded column 8 extending out of the threaded hole 7 can be adjusted, and thus the position of the fixing structure 4 can be adjusted. Among them, the rotating rod 9 includes a fixed rod 91. The fixed rod 91 is fixedly installed at the end of the threaded column 8. A telescopic rod 92 is movably sleeved at one end of the fixed rod 91 away from the threaded column 8. The telescopic rod 92 adopts a telescopic structure, which can save effort during rotation and improve efficiency. The surface of the telescopic rod 92 is provided with anti-slip lines for convenient holding of the telescopic rod 92.

[0029] On the U-shaped frame 1, the position of the fixing structure 4 is adjusted through two mutually perpendicular installation and adjustment structures 3. The threaded column 8 of the horizontal installation and adjustment structure 3 can be telescopically adjusted to adjust the position of the fixing structure 4 in the left-right direction, and the slider 5 of the vertical installation and adjustment structure 3 slides left and right following the fixing structure 4. The threaded column 8 of the vertical installation and adjustment structure 3 can be telescopically adjusted to adjust the position of the fixing structure 4 in the up-down direction, and the slider 5 of the horizontal installation and adjustment structure 3 slides up and down following the fixing structure 4.

[0030] Embodiment 3 of the present utility model: A quick docking and positioning device for a water conveyance pipeline applicable to freezing weather conditions, comprising two U-shaped frames 1. The open side of the U-shaped frame 1 facilitates the insertion of the pipeline. The two U-shaped frames 1 are arranged parallel and opposite to each other, and connecting columns 2 are provided between the four corners. Installation and adjustment structures 3 are provided on adjacent sides of the U-shaped frame 1. A fixing structure 4 is connected to the inner side of each U-shaped frame 1 through two installation and adjustment structures 3. The fixing structure 4 is used to fix the pipeline. The two installation and adjustment structures 3 can accurately adjust the position of the fixing structure 4 up and down and left and right. By adjusting the positions of the two fixing structures 4, the two sides of the pipeline to be welded are aligned for welding, which is simple to operate and improves efficiency.

[0031] The installation and adjustment structure 3 includes a slider 5. A slideway 6 is penetrated and opened on the side wall of the U-shaped frame 1, and the slider 5 is slidably clamped and installed in the slideway 6. The slider 5 can slide along the slideway 6. A threaded hole 7 is penetrated through the slider 5, and a threaded column 8 is penetrated and installed in the threaded hole 7. One end of the threaded column 8 extending into the inner side of the U-shaped frame 1 is connected to the fixing structure 4, and a rotating rod 9 is provided at the other end of the threaded column 8. By rotating the threaded column 8 through the rotating rod 9, the length of the threaded column 8 extending out of the threaded hole 7 can be adjusted, thereby adjusting the position of the fixing structure 4. Among them, the rotating rod 9 includes a fixed rod 91, the fixed rod 91 is fixedly installed at the end of the threaded column 8, and an extension rod 92 is movably sleeved at one end of the fixed rod 91 away from the threaded column 8. The extension rod 92 adopts a telescopic structure, which can save effort and improve efficiency during rotation. The surface of the extension rod 92 is provided with anti-slip lines to facilitate holding the extension rod 92. On the U-shaped frame 1, the position of the fixing structure 4 is adjusted through two mutually perpendicular installation and adjustment structures 3. The threaded column 8 of the horizontal installation and adjustment structure 3 can be telescopically adjusted to adjust the position of the fixing structure 4 in the left-right direction, and the slider 5 of the vertical installation and adjustment structure 3 slides left and right following the fixing structure 4. The threaded column 8 of the vertical installation and adjustment structure 3 can be telescopically adjusted to adjust the position of the fixing structure 4 in the up-down direction, and the slider 5 of the horizontal installation and adjustment structure 3 slides up and down following the fixing structure 4.

[0032] The fixing structure 4 includes a fixed clamp 10 and a movable clamp 11. The fixed clamp 10 and the movable clamp 11 are buckled with each other to form a circular ring. The pipeline is clamped within the circular ring formed by the fixed clamp 10 and the movable clamp 11. One end of the fixed clamp 10 and the movable clamp 11 is hinged to each other. Ear plates 12 are provided at the other ends of the fixed clamp 10 and the movable clamp 11, and the two ear plates 12 are detachably connected by bolts 13. The sizes of the fixed clamp 10 and the movable clamp 11 are selected according to the pipe diameter of the pipeline to be welded. The threaded columns 8 of the two installation and adjustment structures 3 are both installed on the outer side wall of the fixed clamp 10, and the two threaded columns 8 are perpendicular to each other. The threaded columns 8 and the fixed clamp 10 can be detachably installed. The movable clamp 11 is close to the opening side of the U-shaped frame 1, which is convenient for installing the pipeline. During use, the movable clamp 11 is opened, and the pipeline to be welded is placed into the fixed clamp 10 along the opening side of the U-shaped frame 1, and the movable clamp 11 is buckled and fixed to fix the position of the pipeline.

[0033] Embodiment 4 of the present utility model: A rapid butt-joint positioning device for a water conveyance pipeline applicable to freezing weather conditions, which includes two U-shaped frames 1. The opening side of the U-shaped frame 1 is convenient for placing the pipeline. The two U-shaped frames 1 are arranged parallel to each other and opposite, and connecting columns 2 are provided between the four corners. Installation and adjustment structures 3 are provided on the adjacent two sides of the U-shaped frame 1. A fixing structure 4 is connected to the inner side of each U-shaped frame 1 through two installation and adjustment structures 3. The fixing structure 4 is used to fix the pipeline. The two installation and adjustment structures 3 can accurately adjust the position of the fixing structure 4 up and down and left and right. By adjusting the positions of the two fixing structures 4, the two sides of the pipeline to be welded are aligned for welding. The operation is simple and the efficiency is improved.

[0034] The installation and adjustment structure 3 includes a slider 5. A slideway 6 is penetrated and opened on the side wall of the U-shaped frame 1. The slider 5 is slidably clamped and installed in the slideway 6. The slider 5 can slide along the slideway 6. A threaded hole 7 is penetrated through the slider 5. A threaded column 8 is penetrated and installed in the threaded hole 7. One end of the threaded column 8 extending into the inner side of the U-shaped frame 1 is connected with a fixing structure 4. The other end of the threaded column 8 is provided with a rotating rod 9. By rotating the threaded column 8 through the rotating rod 9, the length of the threaded column 8 extending out of the threaded hole 7 can be adjusted, and then the position of the fixing structure 4 can be adjusted. Among them, the rotating rod 9 includes a fixed rod 91. The fixed rod 91 is fixedly installed at the end of the threaded column 8. An extension rod 92 is movably sleeved at one end of the fixed rod 91 away from the threaded column 8. The extension rod 92 adopts a telescopic structure, which can save effort and improve efficiency during rotation. The surface of the extension rod 92 is provided with anti-slip lines to facilitate holding the extension rod 92. The position of the fixing structure 4 is adjusted by two mutually perpendicular installation and adjustment structures 3 on the U-shaped frame 1. The threaded column 8 of the horizontal installation and adjustment structure 3 can be telescopically adjusted to fix the position of the fixing structure 4 in the left and right directions. And the slider 5 of the vertical installation and adjustment structure 3 slides left and right following the fixing structure 4. The threaded column 8 of the vertical installation and adjustment structure 3 can be telescopically adjusted to fix the position of the fixing structure 4 in the up and down directions. And the slider 5 of the horizontal installation and adjustment structure 3 slides up and down following the fixing structure 4.

[0035] The fixing structure 4 includes a fixed clamp 10 and a movable clamp 11. The fixed clamp 10 and the movable clamp 11 are buckled with each other to form a circular ring. The pipeline is clamped in the circular ring formed by the fixed clamp 10 and the movable clamp 11. And one end of the fixed clamp 10 and the movable clamp 11 is hinged to each other. Ear plates 12 are provided at the other ends of the fixed clamp 10 and the movable clamp 11. The two ear plates 12 are detachably connected by bolts 13. The sizes of the fixed clamp 10 and the movable clamp 11 are selected according to the pipe diameter of the pipeline to be welded. The threaded columns 8 of the two installation and adjustment structures 3 are both installed on the outer side wall of the fixed clamp 10. The two threaded columns 8 are perpendicular to each other. The threaded column 8 and the fixed clamp 10 can adopt a detachable installation method. Among them, the movable clamp 11 is close to the opening side of the U-shaped frame 1, which is convenient for installing the pipeline. During use, the movable clamp 11 is opened, and the pipeline to be welded is placed into the fixed clamp 10 along the opening side of the U-shaped frame 1, and the movable clamp 11 is buckled and fixed to fix the position of the pipeline.

[0036] Among them, in the middle of the four connecting columns 2, a reinforcing cross beam 14 corresponding to and parallel to the three sides of the U-shaped frame 1 is provided to increase the strength of the overall frame structure. Moreover, through grooves 15 are respectively formed through the two relatively positioned reinforcing cross beams 14, and positioning rods 16 are inserted into the two through grooves 15. When two pipes are welded, the positioning rods 16 can be clamped between the welds of the two pipes to reserve the welds. The diameter of the positioning rods 16 can be selected according to the reserved size of the welds. There are at least two positioning rods 16, which is convenient for positioning the weld distance and making the weld distances consistent. During docking, two or more positioning rods 16 are inserted into the two through grooves 15 and placed between the interfaces of the two pipes to be welded. At the same time, the welding ends of the two pipes to be welded are closely arranged against the positioning rods 16, so that a uniform weld with the width of the diameter of the positioning rod 16 is reserved between the two pipes to be welded. Then, electric welding is carried out for fixation. After the positioning rods 16 are drawn out, the welding is further completed.

[0037] Embodiment 5 of the present utility model: A rapid docking and positioning device for a water conveyance pipeline applicable to freezing weather conditions includes two U-shaped frames 1. The open side of the U-shaped frame 1 facilitates the insertion of the pipeline. The two U-shaped frames 1 are arranged parallel to each other and opposite, and connecting columns 2 are provided between the four corners. Mounting and adjusting structures 3 are provided on the adjacent sides of the U-shaped frame 1. On the inner side of each U-shaped frame 1, a fixing structure 4 is connected through two mounting and adjusting structures 3. The fixing structure 4 is used to fix the pipeline. The two mounting and adjusting structures 3 can accurately adjust the position of the fixing structure 4 up and down and left and right. By adjusting the positions of the two fixing structures 4, the two sides of the pipelines to be welded are aligned for welding, which is simple to operate and improves efficiency.

[0038] The mounting and adjusting structure 3 includes a slider 5. A slideway 6 is formed through the side wall of the U-shaped frame 1. The slider 5 is slidably clamped and installed in the slideway 6. The slider 5 can slide along the slideway 6. A threaded hole 7 is formed through the slider 5, and a threaded column 8 is installed through the threaded hole 7. One end of the threaded column 8 extending into the inner side of the U-shaped frame 1 is connected with the fixing structure 4, and a rotating rod 9 is provided at the other end of the threaded column 8. By rotating the threaded column 8 through the rotating rod 9, the length of the threaded column 8 extending out of the threaded hole 7 can be adjusted, and thus the position of the fixing structure 4 can be adjusted. Among them, the rotating rod 9 includes a fixed rod 91, the fixed rod 91 is fixedly installed at the end of the threaded column 8, and an extension rod 92 is movably sleeved at one end of the fixed rod 91 away from the threaded column 8. The extension rod 92 adopts a telescopic structure, which can save effort during rotation and improve efficiency. The surface of the extension rod 92 is provided with anti-slip lines, which is convenient for holding the extension rod 92. The positions of the fixing structure 4 are adjusted through two mutually perpendicular mounting and adjusting structures 3 on the U-shaped frame 1. The threaded column 8 of the horizontal mounting and adjusting structure 3 can telescopically adjust the position of the fixing structure 4 in the left and right directions, and the slider 5 of the vertical mounting and adjusting structure 3 slides left and right along with the fixing structure 4. The threaded column 8 of the vertical mounting and adjusting structure 3 can telescopically adjust the position of the fixing structure 4 in the up and down directions, and the slider 5 of the horizontal mounting and adjusting structure 3 slides up and down along with the fixing structure 4.

[0039] The fixing structure 4 includes a fixed clamp 10 and a movable clamp 11. The fixed clamp 10 and the movable clamp 11 are buckled with each other to form a circular ring shape. The pipeline is clamped within the circular ring formed by the fixed clamp 10 and the movable clamp 11. One end of the fixed clamp 10 and the movable clamp 11 is hinged to each other. Ear plates 12 are provided at the other ends of the fixed clamp 10 and the movable clamp 11. The two ear plates 12 are detachably connected by bolts 13. The sizes of the fixed clamp 10 and the movable clamp 11 are selected according to the pipe diameter to be welded. The threaded columns 8 of the two installation and adjustment structures 3 are both installed on the outer side wall of the fixed clamp 10. The two threaded columns 8 are perpendicular to each other. The threaded column 8 and the fixed clamp 10 can adopt a detachable installation method. The movable clamp 11 is close to the opening side of the U-shaped frame 1, which is convenient for installing the pipeline. During use, the movable clamp 11 is opened, and the pipeline to be welded is placed into the fixed clamp 10 along the opening side of the U-shaped frame 1, and the movable clamp 11 is buckled and fixed to fix the position of the pipeline.

[0040] Among them, a strengthening cross beam 14 corresponding to and parallel to the three sides of the U-shaped frame 1 is provided in the middle between the four connecting columns 2 to increase the strength of the overall frame structure. And, through grooves 15 are penetrated through both of the two relatively positioned strengthening cross beams 14. A positioning rod 16 is穿设在两个横槽15内,并置于两个待焊接管道接口之间,同时使两个待焊接管道焊接端紧贴定位杆16设置,使两个待焊接管道之间预留有定位杆16直径宽度的均匀焊缝,进行电焊固定,抽出定位杆16后进一步完成焊接。

[0041] Specifically, a laser emitting device 17 is provided on the outer surface of one fixing structure 4, and a receiving baffle 18 corresponding to the position of the laser emitting device 17 is provided on the outer surface of the other fixing structure 4. A ring target is provided on the receiving baffle 18. The laser emitting device 17 emits visible laser rays, and precise adjustment can be performed according to the position of the laser rays projected on the receiving baffle 18. A plurality of laser emitting devices 17 are provided and are evenly distributed in a ring shape along the corresponding fixing structure 4. A plurality of receiving baffles 18 are provided on the corresponding fixing structure 4 and are in one-to-one correspondence with the positions of the laser emitting devices 17 to ensure the adjustment accuracy.

[0042] It should be noted that there is an unclear expression in the original text of item [5] where "a positioning rod 16 is穿设在两个横槽15内" seems to be incomplete or incorrect in grammar. I have translated it as best as possible based on the context. You may need to check and correct the original text if necessary.Working principle of an embodiment of the present utility model: When the present utility model is in use, first, open the movable fixture 11. At the same time, insert two or more positioning rods 16 into the two transverse grooves 15. Place the pipeline to be welded into the fixed fixture 10 along the open side of the U-shaped frame 1. Close and fix the movable fixture 11. Adjust the welding ends of the two pipelines to be welded to closely adhere to the positioning rods 16, so as to leave a uniform weld seam with the diameter width of the positioning rod 16 between the two pipelines to be welded. Lock the movable fixture 11 to fix the positions of the two pipelines to be welded. Then, use the adjustment structure 3 to adjust the positions of the pipelines respectively. The threaded column 8 of the adjustment structure 3 installed horizontally can be telescopically adjusted to fix the position of the structure 4 in the left and right directions. And the adjustment structure 3 installed vertically slides left and right along with the fixed structure 4 through its slider 5. The threaded column 8 of the adjustment structure 3 installed vertically can be telescopically adjusted to fix the position of the fixed structure 4 in the up and down directions. And the adjustment structure 3 installed horizontally slides up and down along with the fixed structure 4 through its slider 5. During the adjustment process, precise adjustment is carried out according to the laser position projected by the laser emitting device 17 on the receiving baffle 18. After the adjustment is completed, the welding joints of the two pipelines are fixed by electric welding. Pull out the positioning rods 16 and further weld. Finally, open the movable fixture 11. After detaching from the device along the open side of the U-shaped frame 1, check and further improve the welding until the welding is completed.

Claims

1. A quick docking and positioning device for water pipelines suitable for freezing weather conditions, characterized in that: It includes two U-shaped frames (1). The two U-shaped frames (1) are arranged parallel to each other and opposite, and connecting columns (2) are provided between the four corners. Mounting and adjusting structures (3) are provided on adjacent sides of the U-shaped frame (1), and a fixing structure (4) is connected to the inner side of each U-shaped frame (1) through two of the mounting and adjusting structures (3).

2. The water pipeline quick docking and positioning device suitable for freezing weather conditions according to claim 1, characterized in that: The mounting and adjusting structure (3) includes a slider (5). A slideway (6) is penetrated and opened on the side wall of the U-shaped frame (1). The slider (5) is slidably clamped and installed in the slideway (6). A threaded hole (7) is penetrated and opened on the slider (5). A threaded column (8) is penetrated and installed in the threaded hole (7). One end of the threaded column (8) extending into the inner side of the U-shaped frame (1) is connected to the fixing structure (4), and a rotating rod (9) is provided at the other end of the threaded column (8).

3. The water pipeline quick docking and positioning device suitable for freezing weather conditions according to claim 2, characterized in that: The rotating rod (9) includes a fixed rod (91). The fixed rod (91) is fixedly installed at the end of the threaded column (8). An extension rod (92) is movably sleeved at one end of the fixed rod (91) away from the threaded column (8).

4. The water pipeline quick docking and positioning device suitable for freezing weather conditions according to claim 3, characterized in that: Anti-slip lines are provided on the surface of the extension rod (92).

5. The water pipeline quick docking and positioning device suitable for freezing weather conditions according to claim 2, characterized in that: The fixing structure (4) includes a fixed clamp (10) and a movable clamp (11). The fixed clamp (10) and the movable clamp (11) are buckled with each other to form a circular ring shape, and one end of the fixed clamp (10) and the movable clamp (11) is hinged to each other. Ear plates (12) are provided at the other ends of the fixed clamp (10) and the movable clamp (11). The two ear plates (12) are detachably connected by bolts (13). The threaded columns (8) of the two mounting and adjusting structures (3) are both installed on the outer side wall of the fixed clamp (10).

6. A water pipeline quick docking and positioning device suitable for freezing weather conditions according to claim 1 or 5, characterized in that: A strengthening cross beam (14) corresponding to and parallel to the three sides of the U-shaped frame (1) is provided in the middle between the four connecting columns (2).

7. The water pipeline quick docking and positioning device suitable for freezing weather conditions according to claim 6, characterized in that: Horizontal grooves (15) are penetrated and opened on two opposite strengthening cross beams (14). A positioning rod (16) is penetrated and installed in the two horizontal grooves (15).

8. The water pipeline quick docking and positioning device suitable for freezing weather conditions according to claim 7, characterized in that: There are at least two positioning rods (16).

9. A water pipeline quick docking and positioning device suitable for freezing weather conditions according to claim 1 or 8, characterized in that: A laser emitting device (17) is provided on the outer surface of one of the fixing structures (4), and a receiving baffle (18) corresponding to the position of the laser emitting device (17) is provided on the outer surface of the other fixing structure (4). A ring target is provided on the receiving baffle (18).

10. The water pipeline quick docking and positioning device suitable for freezing weather conditions according to claim 9, characterized in that: A plurality of laser emitting devices (17) are provided and are evenly distributed in a ring along the corresponding fixing structure (4). A plurality of receiving baffles (18) are provided on the corresponding fixing structure (4) and are in one-to-one correspondence with the positions of the laser emitting devices (17).

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