Water supply and drainage pipeline connecting device for rainwater engineering

Abstract

The invention discloses a water supply and drainage pipeline connecting device for rainwater engineering, and relates to the technical field of pipeline welding. The device comprises an electric welding machine, an electric welding clamp is arranged on one side of the electric welding machine, a cable is fixedly inserted between the electric welding machine and the electric welding clamp, a welding rod is clamped on the electric welding clamp, upper fixing semi-rings are arranged on the two sides of the electric welding clamp, and lower fixing semi-rings are arranged at the bottoms of the upper fixing semi-rings. The upper fixing semi-rings and the lower fixing semi-rings which are located at the same position are symmetrically arranged. By arranging the driving assembly, an electric welding machine is started, an electric welding clamp welds a seam through a welding rod, meanwhile, transmission motors on the two sides start to drive the electric welding clamp in a spring clamp to conduct circular motion around a pipeline, the welding rod conducts rotary welding around the annular seam, and automatic welding of the metal pipeline is completed; the difficult-to-operate area at the bottom of the pipeline can also be welded and formed, and the welding difficulty of the metal water supply and drainage pipeline is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline welding, and particularly relates to a water supply and drainage pipeline connection device for rainwater projects. Background Art

[0002] Municipal water supply and drainage pipelines, as an important part of urban rainwater projects, undertake the important tasks of collecting, transporting, and discharging urban rainwater and domestic sewage. Water supply and drainage pipelines are usually buried under the green belts on both sides of the road or under the sidewalks. This can not only ensure the normal operation of the drainage system but also reduce the impact on the urban landscape. Secondly, under the green belt is also a common location for drainage pipelines. By burying the drainage pipelines under the green belt, the underground space can be fully utilized while reducing the interference with urban life.

[0003] Currently, common water supply and drainage pipelines are often made of plastic, metal, concrete, and reinforced concrete. Among them, the welding of metal pipelines is one of the common connection methods for metal pipelines. Metal pipelines are generally laid in soil trenches, and the welding operation at the bottom where the connection part contacts the trench is difficult, and the welding quality is difficult to guarantee. Therefore, a water supply and drainage pipeline connection device for rainwater projects is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the welding operation at the bottom where the connection part of the currently laid metal water supply and drainage pipelines contacts the trench is difficult, and the welding quality is difficult to guarantee. The present invention provides a water supply and drainage pipeline connection device for rainwater projects.

[0005] The present invention specifically adopts the following technical solutions to achieve the above purpose: A water supply and drainage pipeline connection device for rainwater projects, including an electric welding machine. One side of the electric welding machine is provided with an electric welding clamp. A cable is fixedly inserted between the electric welding machine and the electric welding clamp. An electrode is clamped on the electric welding clamp. Upper fixed semi-rings are arranged on both sides of the electric welding clamp. Lower fixed semi-rings are arranged at the bottoms of the upper fixed semi-rings. The upper fixed semi-rings and the lower fixed semi-rings at the same position are symmetrically arranged. Fitting plates are fixedly sleeved at both ends of the upper fixed semi-rings and the lower fixed semi-rings. A plurality of uniformly distributed assembly holes are opened on the fitting plates. A driving component for hanging the electric welding clamp and driving the electric welding clamp and the electrode to make circular motions is arranged between the two upper fixed semi-rings. The driving component extends into the interiors of the upper fixed semi-rings and the lower fixed semi-rings.

[0006] Further, the driving assembly includes four semi-toothed rings respectively rotatably installed inside the two upper fixed semi-rings and the two lower fixed semi-rings. Transmission boxes are fixedly installed at the tops of the upper fixed semi-rings, and the transmission boxes are all communicated with the interiors of the upper fixed semi-rings. A transmission shaft is rotatably installed inside the transmission boxes, and a transmission gear meshing with the semi-toothed rings is fixedly sleeved inside the transmission shaft. Transmission motors are fixedly installed on one side of each transmission box, and the output shafts of the transmission motors are drivingly connected to the transmission shafts. Transmission frames are fixedly installed on the side walls of the semi-toothed rings located inside the upper fixed semi-rings. Semi-ring sliding holes are formed in the side walls of the upper fixed semi-rings and the lower fixed semi-rings. The two transmission frames are respectively slidably installed inside two of the semi-ring sliding holes. One ends of the two transmission frames extend to the outside of the upper fixed semi-rings and are fixedly installed with the same suspension frame. A telescopic frame is fixedly installed at the top of the suspension frame, and a spring clip is fixedly installed at the telescopic end of the telescopic frame. The electric welding clip is clamped inside the spring clip. An avoidance hole is formed in the top of the suspension frame, and the welding rod is located inside the avoidance hole.

[0007] Further, a lifting electric push rod parallel to the telescopic frame is fixedly installed at the top of one of the transmission frames, and a lifting frame is fixedly installed at the telescopic end of the lifting electric push rod. The lifting frame is fixedly installed on one side of the telescopic end of the telescopic frame.

[0008] Further, a laser pen inclinedly arranged is fixedly installed at the bottom of the suspension frame, and the position of the laser pen corresponds to the position of the welding rod.

[0009] Further, a mudguard is fixedly installed on one side of the suspension frame.

[0010] Further, positioning cone columns are fixedly installed at the tops of the fitting plates located at both ends of the lower fixed semi-rings, and positioning jacks adapted to the positioning cone columns are formed at the bottoms of the fitting plates located at both ends of the upper fixed semi-rings.

[0011] Further, a mudguard cover is placed on one end of the lower fixed semi-ring. A through hole adapted to the positioning cone column is formed in the top of the mudguard cover, and a plurality of fitting columns adapted to the fitting holes are fixedly installed at the bottom of the mudguard cover.

[0012] Further, positioning plates are placed on one ends of the two upper fixed semi-rings on the same side. A plurality of positioning insertion rods are slidably installed at both ends of the positioning plates, and the positioning insertion rods are all parallel to the axis of the upper fixed semi-rings. A plurality of positioning slots adapted to the positioning insertion rods are formed in the side walls at both ends of the upper fixed semi-rings.

[0013] Further, a tension adjusting frame is provided between the electric welding clamp and the electric welding machine. Cable assembly holes are formed on both sides of the tension adjusting frame. The cable is threaded through the two cable assembly holes. Two adjusting wheels are rotatably installed inside the tension adjusting frame. The cable is located between the two adjusting wheels. Two adjusting motors are fixedly installed on one side of the tension adjusting frame. Output shafts of the two adjusting motors are respectively drivingly connected to the two adjusting wheels.

[0014] The beneficial effects of the present invention are as follows: 1. By providing a driving component in the present invention, when the electric welding machine is started, the electric welding clamp welds the butt joint through the welding rod. At the same time, the driving motors on both sides drive the electric welding clamp inside the spring clamp to move in a circular motion around the pipeline, so that the welding rod rotates around the annular joint for welding, completing the automatic welding of the metal pipeline, enabling the areas that are difficult to operate at the bottom of the pipeline to be welded into shape, and reducing the welding difficulty of the metal water supply and drainage pipeline; 2. By providing a lifting electric push rod in the present invention, during the welding process, the welding rod will gradually consume and shorten. At this time, the lifting electric push rod will drive the spring clamp to move stably towards the suspension bracket, so that the welding end of the welding rod always keeps in light contact or a fixed distance from the joint of the pipeline, thereby making the welding quality of each part approach the same; 3. By providing a tension adjusting frame in the present invention, the cable threaded through the tension adjusting frame will be controlled by the upper and lower two adjusting wheels. The two adjusting motors on one side of the tension adjusting frame will drive the two adjusting wheels to rotate synchronously, thereby adjusting the tension of the cable, so that the section of the cable between the electric welding clamp and the tension adjusting frame always maintains a certain tension, preventing the cable from being too loose and hindering the welding operation. Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a three-dimensional structural schematic diagram of the cooperation between the upper fixed semi-ring and the positioning plate of the present invention; Figure 3 is a three-dimensional structural schematic diagram of the upper fixed semi-ring of the present invention; Figure 4 is the present invention Figure 3 structural schematic diagram at position A in; Figure 5 is a first - perspective three-dimensional structural schematic diagram of the cooperation between the electric welding clamp and the spring clamp of the present invention; Figure 6 is a second - perspective three-dimensional structural schematic diagram of the cooperation between the electric welding clamp and the spring clamp of the present invention; Figure 7 is a three-dimensional structural schematic diagram inside the upper fixed semi-ring of the present invention; Figure 8It is a schematic three-dimensional structure diagram of the lower fixed semi-ring of the present invention; Figure 9 It is a schematic three-dimensional structure diagram of the cooperation between the lower fixed semi-ring and the mudguard of the present invention; Figure 10 It is a schematic three-dimensional structure diagram of the tension adjusting frame of the present invention; Reference numerals: 1, electric welding machine; 2, cable; 3, electric welding clamp; 4, upper fixed semi-ring; 401, semi-ring sliding hole; 402, positioning slot; 5, lower fixed semi-ring; 6, fitting plate; 601, fitting hole; 602, positioning socket; 7, semi-toothed ring; 8, transmission box; 9, transmission shaft; 10, transmission gear; 11, transmission motor; 12, transmission frame; 13, suspension frame; 1301, avoidance hole; 14, telescopic frame; 15, spring clamp; 16, welding rod; 17, lifting electric push rod; 18, lifting frame; 19, laser pointer; 20, positioning cone column; 21, mudguard; 22, fitting column; 23, positioning plate; 24, positioning insertion rod; 25, mudguard plate; 26, tension adjusting frame; 27, adjusting wheel; 28, adjusting motor. Detailed implementation manners

[0016] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0019] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] like Figures 1 to 10 As shown, a water supply and drainage pipe connection device for rainwater engineering includes an electric welding machine 1, as shown in Figure 1 As shown, a welding clamp 3 is provided on one side of the welding machine 1, and a cable 2 is fixedly connected between the welding machine 1 and the welding clamp 3. Figure 6 As shown, the welding clamp 3 holds a welding rod 16. Figure 1 As shown, both sides of the welding clamp 3 are provided with an upper fixing half ring 4, and the bottom of the upper fixing half ring 4 is provided with a lower fixing half ring 5. The upper fixing half ring 4 and the lower fixing half ring 5 located at the same place are symmetrically arranged, as shown in FIG. Figure 2 , Figure 8 As shown, both ends of the upper fixed half ring 4 and the lower fixed half ring 5 are fixedly sleeved with a mounting plate 6, as shown in FIG. Figure 4 As shown, a plurality of evenly distributed assembly holes 601 are provided on the assembly plate 6, and a driving assembly for hanging the welding clamp 3 and driving the welding clamp 3 and the welding rod 16 to make circular motion is provided between the two upper fixed semi-rings 4, and the driving assembly extends to the interior of the upper fixed semi-ring 4 and the lower fixed semi-ring 5; specifically, when the water supply and drainage pipe connection device for rainwater engineering is used, the metal water supply and drainage pipe is first laid in the soil groove, and then an arc-shaped tunnel convenient for welding is dug at the joint of the pipes at both ends, so that one end of the pipe is suspended and the joint is cleaned, and then a welding rod 16 is clamped inside the welding clamp 3, and the welding clamp 3 together with the welding rod 16 is clamped inside the spring clamp 15, and then the two lower fixed semi-rings 5 ​​are buckled respectively on On the two sections of the pipeline, the lower fixed half ring 5 is made to slide along the pipeline to the bottom of the pipeline. At this time, the two connected upper fixed half rings 4 are buckled on the pipeline, so that the upper fixed half ring 4 and the lower fixed half ring 5 are spliced ​​into a complete fixed ring, and then the upper fixed half ring 4 and the lower fixed half ring 5 are locked on the pipeline by bolts and assembly holes 601, so that the two sections of the pipeline are assembled together, and then the electric welding machine 1 and the driving component are started, so that the electric welding clamp 3 welds the joints of the pipeline through the welding rod 16, and at the same time, the driving component drives the electric welding clamp 3 to rotate slowly around the pipeline, so that the splicing parts of various parts of the pipeline are welded into shape, completing the automatic welding of the metal pipeline, and finally the electric welding clamp 3 is reversed and reset, and the upper fixed half ring 4 and the lower fixed half ring 5 are disassembled to complete the welding operation.

[0021] like Figure 7 , Figure 8As shown in the figure, the driving assembly includes four semi-toothed rings 7 respectively rotatably installed inside two upper fixed half-rings 4 and two lower fixed half-rings 5. At the top of each upper fixed half-ring 4, a transmission box 8 is fixedly installed. The transmission boxes 8 are all communicated with the inside of the upper fixed half-rings 4. Inside the transmission boxes 8, a transmission shaft 9 is rotatably installed. Inside the transmission shaft 9, a transmission gear 10 meshing with the semi-toothed ring 7 is fixedly sleeved. As Figure 3 shown in the figure, on one side of each transmission box 8, a transmission motor 11 is fixedly installed. In this embodiment, the transmission motor 11 is a stepping motor. The driving assembly can also be controlled by a single motor. The output shaft of the transmission motor 11 is drivingly connected to the transmission shaft 9. On the side walls of the semi-toothed rings 7 located inside the upper fixed half-rings 4, transmission frames 12 are fixedly installed. On the side walls of the upper fixed half-rings 4 and the lower fixed half-rings 5, semi-ring sliding holes 401 are opened. The two transmission frames 12 are respectively slidably installed inside two of the semi-ring sliding holes 401. As Figure 5 shown in the figure, one ends of the two transmission frames 12 extend outside the upper fixed half-ring 4 and are fixedly installed with the same suspension frame 13. At the top of the suspension frame 13, a telescopic frame 14 is fixedly installed. The telescopic end of the telescopic frame 14 is fixedly installed with a spring clip 15. The welding clamp 3 is clamped inside the spring clip 15. An avoidance hole 1301 is opened at the top of the suspension frame 13. The welding rod 16 is located inside the avoidance hole 1301; specifically, by setting the driving assembly, after fixing the two sections of pipes with the upper fixed half-ring 4 and the lower fixed half-ring 5, the welding rod 16 faces the joint of the pipes. At this time, start the electric welding machine 1, so that the welding clamp 3 welds the joint through the welding rod 16. At the same time, the transmission motors 11 on both sides start to drive the transmission gears 10 to rotate through the transmission shafts 9. When the upper fixed half-ring 4 and the lower fixed half-ring 5 are spliced before, the semi-toothed rings 7 inside them will also be spliced end to end to form a complete toothed ring. The transmission gears 10 will drive the toothed rings inside the upper fixed half-ring 4 and the lower fixed half-ring 5 to rotate, and then drive the welding clamp 3 inside the spring clip 15 to make a circular motion around the pipe through the transmission frame 12 and the suspension frame 13, so that the welding rod 16 rotates and welds around the annular joint, completing the automatic welding of the metal pipe, enabling the area that is difficult to operate at the bottom of the pipe to be welded and formed, and reducing the welding difficulty of the metal water supply and drainage pipes.

[0022] As Figure 5As shown in the figure, a lifting electric push rod 17 parallel to the telescopic frame 14 is fixedly installed at the top of one of the transmission frames 12. The telescopic end of the lifting electric push rod 17 is fixedly installed with a lifting frame 18, and the lifting frame 18 is fixedly installed on one side of the telescopic end of the telescopic frame 14. Specifically, by setting the lifting electric push rod 17, during the process of welding the pipe joint by the welding clamp 3 with the welding rod 16, the welding rod 16 will gradually consume and shorten. At this time, the lifting electric push rod 17 will drive the spring clamp 15 to move stably towards the suspension frame 13 through the lifting frame 18, so that the welding end of the welding rod 16 always keeps in light contact with or a fixed distance from the pipe joint (subject to actual welding requirements and factors such as the output current of the electric welding machine 1), so that the welding quality at each place is close to being consistent.

[0023] As Figure 6 shown in the figure, an inclined laser pen 19 is fixedly installed at the bottom of the suspension frame 13, and the position of the laser pen 19 corresponds to the position of the welding rod 16. Specifically, by setting the laser pen 19, before locking the pipe with bolts, it is necessary to first turn on the laser pen 19 at the bottom of the suspension frame 13 to make the laser pen 19 emit laser towards the pipe, so as to adjust the positions of the upper fixed half-ring 4 and the lower fixed half-ring 5 until the laser point is just located at the pipe joint, then the upper fixed half-ring 4 and the lower fixed half-ring 5 can be locked continuously, so as to position the position of the welding rod 16 and avoid the problem of position deviation between the welding rod 16 and the joint.

[0024] As Figure 2 shown in the figure, a mud guard 25 is fixedly installed on one side of the suspension frame 13. Specifically, the mud guard 25 can prevent the soil in the tunnel from falling and affecting the welding of the welding clamp 3 during the process of the welding clamp 3 rotating around the pipe for welding.

[0025] As Figure 8 shown in the figure, positioning cone columns 20 are fixedly installed at the tops of the fitting plates 6 at both ends of the lower fixed half-ring 5, and positioning jacks 602 adapted to the positioning cone columns 20 are opened at the bottoms of the fitting plates 6 at both ends of the upper fixed half-ring 4. Specifically, by setting the positioning cone columns 20, when the upper fixed half-ring 4 and the lower fixed half-ring 5 are spliced into a complete ring, the positioning cone columns 20 at both ends of the lower fixed half-ring 5 will be stuck into the positioning jacks 602 at both ends of the upper fixed half-ring 4, so as to play a role of pre-positioning before locking the upper fixed half-ring 4 and the lower fixed half-ring 5 with bolts, and prevent the tracks inside the upper fixed half-ring 4 and the lower fixed half-ring 5 from being misaligned, resulting in the inability to fit the semi-tooth rings 7 on the upper and lower sides.

[0026] As Figure 9As shown, a mudguard 21 is placed on one end of the lower fixed semi-ring 5. A through-hole adapted to the positioning cone column 20 is provided at the top of the mudguard 21, and a plurality of fitting columns 22 adapted to the fitting holes 601 are fixedly installed at the bottom of the mudguard 21. Specifically, by providing the mudguard 21 and the mudguard plate 25, one end of the lower fixed semi-ring 5 in the initial state will be sleeved with a mudguard 21. After the lower fixed semi-ring 5 is buckled on the pipeline, slide the lower fixed semi-ring 5 to rotate it along the pipeline to the bottom of the pipeline. During this process, the end sleeved with the mudguard 21 will slide in advance, so as to prevent the soil in the tunnel from falling into the interior of the lower fixed semi-ring 5 during the process of sliding the lower fixed semi-ring 5 and affecting the subsequent transmission of the semi-tooth ring 7. After the lower fixed semi-ring 5 is rotated to the bottom of the pipeline, the mudguard 21 can be removed to proceed with the next step of splicing.

[0027] As Figure 2 shown, positioning plates 23 are placed on one ends of the two upper fixed semi-rings 4 on the same side. A plurality of positioning pins 24 are slidably installed at both ends of the positioning plate 23, and the positioning pins 24 are all parallel to the axis of the upper fixed semi-ring 4. As Figure 1 shown, a plurality of positioning slots 402 adapted to the positioning pins 24 are provided on the side walls at both ends of the upper fixed semi-ring 4. Specifically, by providing the positioning plate 23, in the initial state, the positioning plates 23 are assembled at both ends of the two upper fixed semi-rings 4. The positioning plate 23 positions the two upper fixed semi-rings 4 through the positioning pins 24 at both ends and the positioning slots 402, preventing them from being misaligned and affecting the splicing. At the same time, the positioning plate 23 is convenient for construction workers to carry by hand, reducing the splicing difficulty between the upper fixed semi-ring 4 and the lower fixed semi-ring 5.

[0028] As Figure 1 shown, a tension adjusting frame 26 is provided between the welding clamp 3 and the welding machine 1. As Figure 10 shown, cable 2 fitting holes 601 are provided on both sides of the tension adjusting frame 26. The cable 2 is threaded through the two cable 2 fitting holes 601. Two adjusting wheels 27 are rotatably installed inside the tension adjusting frame 26. The cable 2 is located between the two adjusting wheels 27. Two adjusting motors 28 are fixedly installed on one side of the tension adjusting frame 26, and the output shafts of the two adjusting motors 28 are respectively drivingly connected to the two adjusting wheels 27. Specifically, by providing the tension adjusting frame 26, when the welding clamp 3 rotates around the pipeline for welding, the cable 2 on one side thereof will move together with the welding clamp 3. At this time, the cable 2 threaded through the inside of the tension adjusting frame 26 will be controlled by the upper and lower two adjusting wheels 27. The two adjusting motors 28 on one side of the tension adjusting frame 26 will drive the two adjusting wheels 27 to rotate synchronously, thereby adjusting the tension of the cable 2 so that the section of the cable 2 between the welding clamp 3 and the tension adjusting frame 26 always maintains a certain tension, preventing the cable 2 from being too loose and hindering the welding operation.

[0029] In summary: Before welding: First, lay the metal water supply and drainage pipes in the soil trench. Then, dig an arc-shaped pit at the joint of the two end pipes for convenient welding, making one end of the pipe butt joint suspended and cleaning the joint. Then, hold a welding rod 16 inside the electric welding clamp 3, and hold the electric welding clamp 3 together with the welding rod 16 inside the spring clamp 15. Then, respectively fasten the two lower fixed half rings 5 on the two sections of pipes, and let the lower fixed half ring 5 slide along the pipe to the bottom of the pipe. Remove the mud guard 21. At this time, fasten the two upper fixed half rings 4 connected together on the pipe, so that the upper fixed half ring 4 and the lower fixed half ring 5 are spliced into a complete fixed ring. Turn on the laser pen 19 at the bottom of the suspension bracket 13, and let the laser pen 19 emit laser light towards the pipe, so as to adjust the positions of the upper fixed half ring 4 and the lower fixed half ring 5 until the laser point is just located at the pipe joint. Remove the positioning plates 23 and positioning rods 24 on both sides, and then use bolts and assembly holes 601 to lock the upper fixed half ring 4 and the lower fixed half ring 5 on the pipe, so that the two sections of pipes are assembled together; During welding: Start the electric welding machine 1, and let the electric welding clamp 3 weld the joint through the welding rod 16. At the same time, the driving motors 11 on both sides start to drive the driving gear 10 to rotate through the transmission shaft 9. When the upper fixed half ring 4 and the lower fixed half ring 5 were spliced before, the half-tooth rings 7 inside them would also be joined end to end to form a complete tooth ring. The driving gear 10 would drive the tooth rings inside the upper fixed half ring 4 and the lower fixed half ring 5 to rotate, and then drive the electric welding clamp 3 inside the spring clamp 15 to make a circular motion around the pipe through the transmission frame 12 and the suspension bracket 13, so that the welding rod 16 rotates around the annular joint for welding. The cable 2 passing through the tension adjusting frame 26 will be controlled by the upper and lower adjusting wheels 27. The two adjusting motors 28 on one side of the tension adjusting frame 26 will drive the two adjusting wheels 27 to rotate synchronously, so as to adjust the tension of the cable 2. At this time, the lifting electric push rod 17 will drive the spring clamp 15 to move stably towards the suspension bracket 13 through the lifting frame 18, so that the welding end of the welding rod 16 always keeps in light contact or a fixed distance from the joint of the pipe, completing the automatic welding of the metal pipe; After welding: The electric welding clamp 3 reverses and resets, and disassemble the upper fixed half ring 4 and the lower fixed half ring 5 to complete the welding operation.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A water supply and drainage pipeline connection device for rainwater engineering, characterized in that It includes a welding machine (1), on one side of the welding machine (1) there is a welding clamp (3), a cable (2) is fixedly inserted between the welding machine (1) and the welding clamp (3), a welding rod (16) is clamped on the welding clamp (3), upper fixing half-rings (4) are arranged on both sides of the welding clamp (3), lower fixing half-rings (5) are arranged at the bottoms of the upper fixing half-rings (4), the upper fixing half-rings (4) and the lower fixing half-rings (5) at the same position are symmetrically arranged, both ends of the upper fixing half-rings (4) and the lower fixing half-rings (5) are fixedly sleeved with fitting plates (6), and a plurality of uniformly distributed fitting holes (601) are formed in the fitting plates (6). A driving assembly for hanging the welding clamp (3) and driving the welding clamp (3) and the welding rod (16) to make circular motion is arranged between the two upper fixing half-rings (4), and the driving assembly extends into the interiors of the upper fixing half-rings (4) and the lower fixing half-rings (5).

2. The water supply and drainage pipeline connection device for rainwater engineering according to claim 1, characterized in that, The driving assembly includes four half-tooth rings (7) respectively rotatably installed inside the two upper fixing half-rings (4) and the two lower fixing half-rings (5). Transmission boxes (8) are fixedly installed at the tops of the upper fixing half-rings (4), and the transmission boxes (8) are communicated with the interiors of the upper fixing half-rings (4). A transmission shaft (9) is rotatably installed inside the transmission boxes (8), a transmission gear (10) meshing with the half-tooth ring (7) is fixedly sleeved inside the transmission shaft (9), a transmission motor (11) is fixedly installed on one side of each transmission box (8), the output shaft of the transmission motor (11) is drivingly connected to the transmission shaft (9). Transmission frames (12) are fixedly installed on the side walls of the half-tooth rings (7) located inside the upper fixing half-rings (4). Half-ring sliding holes (401) are formed in the side walls of the upper fixing half-rings (4) and the lower fixing half-rings (5). The two transmission frames (12) are respectively slidably installed inside two of the half-ring sliding holes (401). One ends of the two transmission frames (12) extend to the outside of the upper fixing half-rings (4) and are fixedly installed with the same hanging frame (13). A telescopic frame (14) is fixedly installed at the top of the hanging frame (13), a spring clamp (15) is fixedly installed at the telescopic end of the telescopic frame (14), and the welding clamp (3) is clamped inside the spring clamp (15). An avoidance hole (1301) is formed at the top of the hanging frame (13), and the welding rod (16) is located inside the avoidance hole (1301).

3. The water supply and drainage pipeline connection device for rainwater engineering according to claim 2, characterized in that, An elevating electric push rod (17) parallel to the telescopic frame (14) is fixedly installed at the top of one of the transmission frames (12), and an elevating frame (18) is fixedly installed at the telescopic end of the elevating electric push rod (17). The elevating frame (18) is fixedly installed on one side of the telescopic end of the telescopic frame (14).

4. The water supply and drainage pipeline connection device for rainwater engineering according to claim 2, characterized in that, A laser pen (19) inclinedly arranged is fixedly installed at the bottom of the hanging frame (13), and the position of the laser pen (19) corresponds to the position of the welding rod (16).

5. A water supply and drainage pipeline connection device for rainwater engineering according to claim 2, characterized in that, One side of the suspension bracket (13) is fixedly installed with a mudguard (25).

6. A water supply and drainage pipeline connection device for a rainwater project according to claim 1, characterized in that, At the tops of the fitting plates (6) at both ends of the lower fixed semi-ring (5), positioning cone columns (20) are fixedly installed. At the bottoms of the fitting plates (6) at both ends of the upper fixed semi-ring (4), positioning jacks (602) adapted to the positioning cone columns (20) are provided.

7. The water supply and drainage pipeline connection device for rainwater engineering according to claim 6, characterized in that, A mudguard cover (21) is placed on one end of the lower fixed semi-ring (5). A through hole adapted to the positioning cone column (20) is provided at the top of the mudguard cover (21). A plurality of fitting columns (22) adapted to the fitting holes (601) are fixedly installed at the bottom of the mudguard cover (21).

8. A water supply and drainage pipe connection device for rainwater engineering according to claim 1, characterized in that, Positioning plates (23) are placed on the ends of the two upper fixed semi-rings (4) on the same side. A plurality of positioning insertion rods (24) are slidably installed at both ends of the positioning plates (23). The positioning insertion rods (24) are all parallel to the axis of the upper fixed semi-ring (4). A plurality of positioning slots (402) adapted to the positioning insertion rods (24) are provided on the side walls at both ends of the upper fixed semi-ring (4).

9. The water supply and drainage pipeline connection device for rainwater engineering according to claim 1, characterized in that, A tension adjustment frame (26) is provided between the electric welding clamp (3) and the electric welding machine (1). Cable (2) fitting holes (601) are provided on both sides of the tension adjustment frame (26). The cable (2) is threaded through the two cable (2) fitting holes (601). Two adjustment wheels (27) are rotatably installed inside the tension adjustment frame (26). The cable (2) is located between the two adjustment wheels (27). Two adjustment motors (28) are fixedly installed on one side of the tension adjustment frame (26). The output shafts of the two adjustment motors (28) are respectively drivingly connected to the two adjustment wheels (27).

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