Municipal pipeline connection device

Abstract

The invention relates to the field of pipeline welding, and specifically to a municipal pipeline connection device, comprising a spacing adjustment unit, the spacing adjustment unit comprising a No. 1 ring body, the No. 1 ring body is sleeved on the outer ring of the pipeline, and a plurality of No. 1 screws are threadedly connected to the No. 1 ring body; the end of each No. 1 screw points to the axial position of the No. 1 ring body, the end of the No. 1 screw is rotatably connected with a plug plate, the end of the plug plate is knife-shaped, and the end of the plug plate can be inserted into the welding gap between two adjacent sections of the pipeline; in the present invention, the municipal pipeline connection device designed is a pipeline welding auxiliary device, and is used to control the gap width between the welding ends of two sections of the pipeline, by rotating the No. 1 screw, the two sections of the pipeline produce a small axial movement, the gap width adjustment is more flexible, and compared with the push-pull pipeline, the spacing adjustment unit provided in this embodiment is more convenient to use, and can quickly adjust the gap between the two sections of the pipeline to a preset width.

Description

Technical Field

[0001] The invention relates to the field of pipeline welding, in particular to a municipal pipeline connecting device. Background Art

[0002] Municipal pipelines are an important part of urban infrastructure, responsible for transporting water resources, discharging wastewater and other necessary fluids in the city. Municipal pipeline systems usually include water supply pipelines, drainage pipelines, gas pipelines and thermal pipelines. When these different types of pipelines are actually put into use, some pipelines are fixed together by hot melt bonding, and some pipelines need to be connected by welding.

[0003] When welding pipes, single-sided welding and double-sided forming welding technology is generally used for welding. Single-sided welding and double-sided forming welding technology is suitable for situations where the weld root cannot be removed from the back, that is, when welding pipes, welding can be performed to the position of the inner ring joint of the pipe, such as Figure 1 As shown, the edges of the outer wall A and the inner wall B of the pipe can be welded, which can improve the welding firmness and sealing between the pipes. However, this single-sided welding and double-sided forming welding technology requires a certain gap to be reserved between the two sections of the pipe, and the width of the gap is generally the same as the diameter of the welding rod, or larger than the welding rod by 0.5-1.0 mm, in order to achieve the purpose of single-sided welding and double-sided forming.

[0004] When controlling the width of the gap, currently, two sections of the pipe are generally connected together first, and then one of the sections of the pipe is slowly moved, and the width of the gap is always observed and measured. If the gap is too small, the pipe continues to be moved. If the gap is too large, the pipe needs to be pushed back. The gap width adjustment is more troublesome and not flexible enough. If the pipe diameter is large, the overall weight is heavy, which makes it more difficult to operate and inefficient, making it difficult to complete the welding operation within the specified time.

[0005] Therefore, a municipal pipeline connecting device is proposed to solve the above problems. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: a municipal pipeline connection device described in the present invention includes a spacing adjustment unit, the spacing adjustment unit is used to adjust the welding spacing between two sections of the pipeline, and the spacing adjustment unit includes a No. 1 ring body, the No. 1 ring body is sleeved on the outer ring of the pipeline, and a plurality of No. 1 screws are threadedly connected to the No. 1 ring body;

[0008] The end of each No. 1 screw rod points to the axial position of the No. 1 ring body, and the end of the No. 1 screw rod is rotatably connected to a plug plate, the end of the plug plate is knife-shaped, and the end of the plug plate can be inserted into the welding gap between two adjacent sections of the pipe.

[0009] Preferably, a No. 2 rod is fixedly connected to both side walls of each No. 1 ring body, the end of the No. 2 rod is fixedly connected to the No. 2 ring body, and a plurality of No. 2 screw rods are threadedly connected to the No. 2 ring body;

[0010] The end of each of the No. 2 screw rods points to the axis position of the No. 2 ring body, and the end of the No. 2 screw rod is rotatably connected with a pad.

[0011] Preferably, the No. 1 ring body comprises two No. 1 arc plates, which are symmetrically arranged on the pipe, and L-shaped No. 1 rods are evenly and symmetrically fixed to both ends of the two No. 1 arc plates, and a plug hole is opened at the end of each No. 1 rod, and a fixing rod is inserted into the plug holes at the ends of the two No. 1 rods;

[0012] The No. 2 ring body includes two symmetrically arranged No. 2 arc plates, one side wall of which is fixedly connected to the end of the No. 2 rod, and fixing holes are provided at the opposite ends of the two No. 2 arc plates. The fixing holes and the plug holes on the same side of the pipeline are coaxially arranged, and the same fixing rod is inserted into the fixing holes and the plug holes on the same side of the pipeline.

[0013] Preferably, the fixing rod includes a shaft body, both ends of the shaft body are provided with sleeves, a limit plate is provided in the middle position of the shaft body, the limit plate and the sleeve are connected by a spring, and the spring is sleeved on the shaft body. The spring can push the sleeve to the end of the shaft body and squeeze the sleeve into the socket and the fixing hole.

[0014] Preferably, a group of support components is provided on the outer side of each No. 2 ring body, and the support components are used to support the pipeline. Each group of support components includes two support frames, and a plurality of No. 3 screws are threadedly connected to the middle part of each support frame, and the No. 3 screws are used to support and hold the pipeline.

[0015] Preferably, each group of support components also includes a connecting mechanism, which is used to connect the two support frames in each group together, and the connecting mechanism includes a threaded barrel, both ends of which are threadedly connected to a limiting rod, and the end of the limiting rod is provided with a U-shaped buckle, which can be buckled on an L-shaped hook body provided on the outer wall of the support frame.

[0016] Preferably, a spring sheet is provided in the buckle, and the spring sheet can be embedded in an anti-drop hole provided in the horizontal portion of the hook body.

[0017] Preferably, a ball is rotatably connected to the end of each No. 3 screw.

[0018] Preferably, a through hole is provided at the axis position of each of the No. 3 screws, and the through hole extends to the rotational connection position of the No. 3 screw and the ball.

[0019] Preferably, a support plate is provided on the lower surface of the middle portion of each support frame, and the support plate can support the lower surface of the No. 2 ring body.

[0020] The present invention is beneficial in that:

[0021] 1. In the present invention, the municipal pipeline connection device is designed as a pipeline welding auxiliary device, and is used to control the width of the gap between the welding ends of two sections of pipelines. By rotating the No. 1 screw, the two sections of pipelines produce a slight axial movement, and the gap width adjustment is more flexible. Compared with the push-pull pipeline, the spacing adjustment unit provided in this embodiment is more convenient to use and can quickly adjust the gap between the two sections of pipelines to a preset width.

[0022] 2. In the present invention, the No. 2 screw is rotated, and the No. 2 screw drives the pad to be squeezed on the pipe. Since the two No. 2 ring bodies are fixed to the No. 1 ring body through multiple No. 2 rods, the pad is squeezed on the outer surface of the pipe, so that the two pipes are connected together, and the No. 2 screw is rotated and adjusted so that the axes of the two sections of the pipe tend to coincide, thereby welding a high-quality weld mark. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of single-sided welding and double-sided forming in the present invention;

[0024] Figure 2 It is a first perspective stereoscopic diagram of the municipal pipeline connection device in the present invention;

[0025] Figure 3 A second perspective stereoscopic diagram of the municipal pipeline connection device of the present invention;

[0026] Figure 4 It is a front view of the municipal pipeline connection device in the present invention;

[0027] Figure 5 A bottom view of the municipal pipeline connection device of the present invention;

[0028] Figure 6 It is a side view of the municipal pipeline connection device in the present invention;

[0029] Figure 7 It is a schematic diagram of the cooperation between the pipeline and the plug plate in the present invention;

[0030] Figure 8 It is a three-dimensional diagram of the coordination of the first ring body and the second ring body in the present invention;

[0031] Fig. 9 It is a three-dimensional diagram of the coordination between the second arc plate and the supporting assembly in the present invention;

[0032] Fig.10 It is a three-dimensional diagram of the coordination of the first curved plate and the second curved plate in the present invention;

[0033] Fig.11 It is a three-dimensional diagram of the cooperation between the support frame and the connecting mechanism in the present invention;

[0034] Fig.12 is a three-dimensional diagram of the support frame of the present invention;

[0035] Fig.13 is a three-dimensional diagram of the connecting mechanism in the present invention;

[0036] Fig.14 is a cross-sectional view of the shrapnel in the present invention;

[0037] Fig.15 is a three-dimensional diagram of a fixing rod in the present invention;

[0038] Fig.16 is a cross-sectional view of a fixing rod in the present invention;

[0039] Fig.17 This is a first-view stereoscopic image of the No. 3 screw in the present invention;

[0040] Fig.18 This is a second perspective stereoscopic image of the No. 3 screw in the present invention.

[0041] In the figure: 101, pipeline; 1, No. 1 ring body; 2, No. 1 screw rod; 3, plug plate; 4, No. 2 rod; 5, No. 2 ring body; 6, No. 2 screw rod; 7, pad; 8, No. 1 arc plate; 9, No. 1 rod; 10, plug hole; 11, fixing rod; 12, No. 2 arc plate; 13, fixing hole; 14, shaft body; 15, sleeve; 16, limit plate; 17, spring; 18, support frame; 19, No. 3 screw rod; 20, threaded barrel; 21, limit rod; 22, hook body; 23, spring piece; 24, anti-drop hole; 25, sphere; 26, through hole; 27, support plate; 28, rectangular frame; 29, buckle. DETAILED DESCRIPTION

[0042] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0043] Reference Figure 1 - Figure 7 A municipal pipeline connection device includes a spacing adjustment unit, the spacing adjustment unit is used to adjust the welding spacing between two sections of pipeline 101, and the spacing adjustment unit includes a No. 1 ring body 1, the No. 1 ring body 1 is sleeved on the outer ring of the pipeline 101, and a plurality of No. 1 screws 2 are threadedly connected to the No. 1 ring body 1;

[0044] The end of each of the first screw rods 2 points to the axis position of the first ring body 1, and the end of the first screw rod 2 is rotatably connected to a plug plate 3, the end of the plug plate 3 is knife-shaped, and the end of the plug plate 3 can be inserted into the welding gap between two adjacent sections of the pipe 101;

[0045] In this embodiment, the municipal pipeline 101 connection device is designed as a pipeline 101 welding auxiliary device, and is used to control the width of the gap between the welding ends of the two sections of the pipeline 101. During the specific operation, the No. 1 ring body 1 is set on the outer ring between the welding ends of the connecting pipeline 101, and then the No. 1 screw 2 is rotated, and the No. 1 screw 2 pushes the plug plate 3 to move to the welding groove position of the two sections of the pipeline 101. The No. 1 screw 2 is continued to be rotated, and the blade edge of the plug plate 3 is inserted between the welding ends of the two sections of the pipeline 101, and the two sections of the pipeline 101 are gradually squeezed to make the two sections The pipe 101 moves axially and generates a gap. The gap width is measured by a vernier caliper. If the width is small, continue to rotate the No. 1 screw 2, and the insert plate 3 continues to push the two sections of the pipe 101 to move axially until the gap width reaches the preset width position. By rotating the No. 1 screw 2, the two sections of the pipe 101 generate a slight axial movement, and the gap width adjustment is more flexible. Compared with the push-pull pipe 101, the spacing adjustment unit provided in this embodiment is more convenient to use, and can quickly adjust the gap between the two sections of the pipe 101 to the preset width.

[0046] Reference Figure 1 - Figure 8 A No. 2 rod 4 is fixedly connected to both side walls of each No. 1 ring body 1, a No. 2 ring body 5 is fixedly connected to the end of the No. 2 rod 4, and a plurality of No. 2 screw rods 6 are threadedly connected to the No. 2 ring body 5;

[0047] The end of each of the second screw rods 6 points to the axis position of the second ring body 5, and the end of the second screw rod 6 is rotatably connected to a pad 7;

[0048] Taking into account the accuracy of butt welding of the two sections of pipe 101, it is necessary to make the axes of the two sections of pipe 101 tend to coincide with each other so that the two sections of pipe 101 can be stably and tightly welded; for this purpose, a No. 2 ring body 5 is arranged on the No. 1 ring body 1, and the No. 2 ring body 5 cooperates with the No. 2 screw 6 connected thereto to squeeze and fix the two sections of pipe 101 together. During specific operation, the two No. 2 ring bodies 5 are respectively sleeved on the outer rings of the two sections of pipe 101, and the No. 2 screw 6 is rotated, and the No. 2 screw 6 drives the pad 7 to be squeezed on the pipe 101. Since the two No. 2 ring bodies 5 are fixed to the No. 1 ring body 1 through multiple No. 2 rods 4, the pad 7 is squeezed on the outer surface of the pipe 101, so that the two pipes 101 are connected together, and the No. 2 screw 6 is rotated and adjusted so that the axes of the two sections of pipe 101 tend to coincide with each other, thereby welding high-quality weld lines.

[0049] Reference Figure 1 - Fig.10 The No. 1 ring body 1 includes two No. 1 arc plates 8, which are symmetrically arranged on the pipe 101. Both ends of the two No. 1 arc plates 8 are evenly and symmetrically fixed with L-shaped No. 1 rods 9. An insertion hole 10 is opened at the end of each No. 1 rod 9, and a fixing rod 11 is inserted into the insertion holes 10 at the ends of the two No. 1 rods 9.

[0050] The second ring body 5 includes two symmetrically arranged second arc plates 12, one side wall of the second arc plate 12 is fixedly connected to the end of the second rod 4, and the opposite ends of the two second arc plates 12 are each provided with a fixing hole 13, the fixing hole 13 and the plug hole 10 on the same side of the pipe 101 are coaxially arranged, and the fixing hole 13 and the plug hole 10 on the same side of the pipe 101 are inserted with the same fixing rod 11;

[0051] If the pipe 101 has a large diameter and a thick wall, it is heavy when moving the pipe 101. In order to reduce labor and facilitate operators to connect and install the municipal pipe 101 in this embodiment on the pipe 101, the No. 1 ring body 1 and the No. 2 ring body 5 are optimized. Specifically, the No. 1 ring body 1 is divided into two No. 1 arc plates 8, and L-shaped No. 1 rods 9 are evenly and symmetrically fixed at both ends of the two No. 1 arc plates 8, and the No. 2 ring body 5 is divided into two symmetrically arranged No. 2 arc plates 12;

[0052] When the municipal pipeline 101 is connected and installed on the pipeline 101, the two sections of the pipeline 101 are firstly butted together. After the two sections of the pipeline 101 are welded, there is no need to lift the No. 1 ring body 1 and the No. 2 ring body 5, and the two sections of the pipeline 101 only need to be butted together, and there is no need to consider whether the welding end interfaces are aligned. Then, the two No. 1 arc plates 8 are pressed on the outer ring position of the welding end of the pipeline 101, and the two adjacent jacks 10 are aligned. At the same time, the two No. 2 arc plates 12 are installed on the outer ring of the pipeline 101, and the two adjacent fixing holes 13 are aligned. Align, then insert the entire fixing rod 11 into the fixing hole 13 and the plug hole 10 on one side of one section of the pipe 101 in turn, and insert the fixing rod 11 into the other adjacent fixing holes 13 and the plug hole 10. At this time, the No. 1 ring body 1 and the No. 2 ring body 5 are spliced ​​and sleeved on the pipe 101. Then rotate the No. 2 screw 6 to connect the two sections of the pipe 101 together and align the welding ports of the two sections of the pipe 101. Then rotate the No. 1 screw 2, insert the plug plate 3 into the gap between the welding ports of the two sections of the pipe 101, and adjust the width of the gap;

[0053] Four adjacent L-shaped No. 1 rods 9 form a rectangular frame 28, such as Figure 2 As shown, the welder can weld the pipe 101 through the rectangular frame 28, and first perform spot welding. After the two sections of the pipe 101 are fixed together by spot welding, the connecting device of the municipal pipe 101 is removed, and then full welding is performed.

[0054] Reference Figure 1 - Fig.16The fixing rod 11 includes a shaft body 14, both ends of the shaft body 14 are provided with a sleeve 15, the middle position of the shaft body 14 is provided with a limit plate 16, the limit plate 16 and the sleeve 15 are connected by a spring 17, and the spring 17 is sleeved on the shaft body 14, the spring 17 can push the sleeve 15 to the end of the shaft body 14, and squeeze the sleeve 15 into the jack 10 and the fixing hole 13;

[0055] Considering the convenient installation of the municipal pipeline 101 connection device and the convenient disassembly, the fixing rod 11 is optimized. When installing the fixing rod 11, one end of the fixing rod 11 is first inserted into the insertion hole 10 or the fixing hole 13, that is, one of the sleeves 15 is inserted into the insertion hole 10 or the fixing hole 13, and then the other sleeve 15 is squeezed, and the other sleeve 15 is squeezed toward the middle position of the shaft body 14, so that the end of the other sleeve 15 is placed on the outside of the first ring body 1, or the inside of the second ring body 5, and the end of the other sleeve 15 is inserted into the fixing hole 13 or the insertion hole 10. At this time, the end of the fixing rod 11 is inserted into the insertion hole 10 and the fixing hole 13 on one side of the same section of the pipeline 101;

[0056] When the municipal pipeline 101 connection device is removed, the sleeve 15 is squeezed toward the middle position of the shaft body 14, and the sleeve 15 is separated from the socket 10 or the fixing hole 13. This is more convenient than passing the entire fixing rod 11 from one side of the fixing hole 13 into the socket 10.

[0057] Reference Figure 1 - Fig.12 A set of support components is provided on the outside of each No. 2 ring body 5, and the support components are used to support the pipe 101, and each set of support components includes two support frames 18, and a plurality of No. 3 screws 19 are threadedly connected to the middle part of each support frame 18, and the No. 3 screws 19 are used to support and hold the pipe 101;

[0058] By setting a support assembly, the support assembly is used to support the pipeline 101 so that the welding ports of the pipeline 101 can tend to be aligned, and the support assembly is suitable for some pipelines 101 with smaller diameters and thinner walls. It is light in weight, and multiple operators work together to lift and set the pipeline 101 on the support frame 18; the pipeline 101 is set on the support frame 18, and then the No. 3 screw 19 is rotated, and the No. 3 screw 19 pushes the pipeline 101, so that the ports of the two sections of the pipeline 101 tend to be aligned, which helps to quickly adjust the welding ports of the pipeline 101, and then the No. 1 ring body 1 and the No. 2 ring body 5 are installed.

[0059] Reference Figure 1 - Fig.14Each group of support components also includes a connecting mechanism, which is used to connect the two support frames 18 in each group together, and the connecting mechanism includes a threaded barrel 20, both ends of the threaded barrel 20 are threadedly connected to a limit rod 21, and the end of the limit rod 21 is provided with a U-shaped buckle 29, and the buckle 29 can be buckled on an L-shaped hook body 22 provided on the outer side wall of the support frame 18;

[0060] After the support frame 18 is erected, the connecting mechanism is installed on the support frame 18. A U-shaped buckle 29 is provided at the end of the limiting rod 21. The buckle 29 can be buckled on the hook body 22. The end of the hook body 22 is vertically upward. One of the buckles 29 is engaged with the hook body 22. Then the threaded tube 20 is rotated to adjust the distance between the other buckle 29 and the hook body 22 so that the other buckle 29 can be buckled on the hook body 22 of another support frame 18. The threaded tube 20 is rotated again to tighten the limiting rod 21, so that the two adjacent support frames 18 are tightened and fixed into a whole to jointly support the column pipe 101 and improve the stability of the support assembly.

[0061] Reference Figure 1 - Fig.14 The buckle 29 is provided with a spring piece 23, and the spring piece 23 can be embedded in the anti-drop hole 24 opened in the horizontal part of the hook body 22;

[0062] After the buckle 29 is buckled onto the hook body 22, the spring piece 23 is embedded in the anti-drop hole 24. At this time, the buckle 29 and the hook body 22 are locked, so that the buckle 29 can be firmly buckled onto the hook body 22 to prevent the connecting mechanism from accidentally detaching from the support frame 18, causing the support frame 18 to tilt along the axis of the pipeline 101.

[0063] Reference Fig.11 , Fig.12 , Fig.17 and Fig.18 , the end of each of the No. 3 screw rods 19 is rotatably connected with a ball 25;

[0064] A ball 25 is provided at the end of the No. 3 screw 19, and the ball 25 presses against the surface of the pipe 101. When the plug plate 3 is squeezed into the gap between the two sections of the pipe 101, the plug plate 3 squeezes the pipe 101, and the pipe 101 can rub the ball 25 to roll, so that the adjustment of the size of the gap between the two sections of the pipe 101 is more flexible and smoother. At the same time, when the pipe 101 is erected on the support frame 18, when the two sections of the pipe 101 are pushed to align with each other, the movement of the pipe 101 is also smoother, which is helpful to improve the welding efficiency of the pipe 101.

[0065] Reference Fig.11 , Fig.12 , Fig.17 and Fig.18A through hole 26 is formed at the axis position of each of the No. 3 screws 19, and the through hole 26 extends to the rotation connection position between the No. 3 screw 19 and the ball 25;

[0066] The laying environment of the pipeline 101 is poor, generally carried out outdoors, and there is a lot of mud and dust, and the outer surface of the pipeline 101 is adhered to dirt. After the No. 3 screw 19 is used many times, the mud and dust will block the rotation of the ball 25. For this reason, the No. 3 screw 19 needs to be maintained regularly. During maintenance, lubricating oil is injected into the through hole 26, and the ball 25 is turned downward and rubbed to rotate. The surface of the ball 25 can adhere to the lubricating oil, so that the ball 25 can be easily rotated when the No. 3 screw 19 is used next time.

[0067] Reference Figure 3 - Figure 5 A support plate 27 is provided on the lower surface of the middle part of each support frame 18, and the support plate 27 can support the lower surface of the second ring body 5;

[0068] A support plate 27 is provided on the support frame 18 , and the support plate 27 can support the second arc plate 12 located below the pipeline 101 , and pre-support the first ring body 1 and the second ring body 5 , so as to facilitate the subsequent installation of the fixing rod 11 .

[0069] Working principle: the support frame 18 is erected, the pipeline 101 is erected on the support frame 18, and then the No. 3 screw 19 is rotated, and the No. 3 screw 19 pushes the pipeline 101, so that the ports of the two sections of the pipeline 101 tend to be aligned, which is helpful for the rapid adjustment of the welding port of the pipeline 101, and then the No. 1 ring body 1 and the No. 2 ring body 5 are installed;

[0070] Install the No. 1 ring body 1 and the No. 2 ring body 5, and the No. 2 ring body 5 cooperates with the No. 2 screw 6 connected to it to squeeze and fix the two sections of the pipeline 101 together. During the specific operation, the two No. 2 ring bodies 5 are respectively sleeved on the outer rings of the two sections of the pipeline 101, and the No. 2 screw 6 is rotated. The No. 2 screw 6 drives the pad 7 to squeeze on the pipeline 101, and then one of the sleeves 15 is inserted into the socket 10 or the fixing hole 13, and then the other sleeve 15 is squeezed, and the other sleeve 15 is squeezed toward the middle position of the shaft body 14, so that the end of the other sleeve 15 is placed on the outside of the No. 1 ring body 1, or the inside of the No. 2 ring body 5, and the end of the other sleeve 15 is inserted into the fixing hole 13 or the socket 10. At this time, the end of the fixing rod 11 is inserted into the socket 10 and the fixing hole 13 on one side of the same section of the pipeline 101. The above is to install the No. 1 ring body 1 and the No. 2 ring body 5. On the pipe 101, then operate the No. 1 screw 2, rotate the No. 1 screw 2, the No. 1 screw 2 pushes the plug plate 3 to move toward the welding groove position of the two sections of the pipe 101, continue to rotate the No. 1 screw 2, the blade edge of the plug plate 3 is inserted between the welding ends of the two sections of the pipe 101, and gradually squeezes the two sections of the pipe 101, so that the two sections of the pipe 101 move axially and generate a gap, and measure the gap width with a vernier caliper. If the width is small, continue to rotate the No. 1 screw 2, the plug plate 3 continues to push the two sections of the pipe 101 to move axially until the gap width reaches the preset width position, and by rotating the No. 1 screw 2, the two sections of the pipe 101 produce a small axial movement, the gap width adjustment is more flexible, and compared with the push-pull pipe 101, the spacing adjustment unit provided in this embodiment is more convenient to use, and can quickly adjust the gap between the two sections of the pipe 101 to the preset width.

[0071] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A municipal pipeline connection device, characterized in that: The spacing adjustment unit comprises a spacing adjustment unit, which is used to adjust the welding spacing between two sections of pipes (101), and the spacing adjustment unit comprises a No. 1 ring body (1), the No. 1 ring body (1) is sleeved on the outer ring of the pipe (101), and a plurality of No. 1 screw rods (2) are threadedly connected to the No. 1 ring body (1); The end of each of the first screw rods (2) points to the axis position of the first ring body (1), and the end of the first screw rod (2) is rotatably connected to a plug plate (3), the end of the plug plate (3) is knife-shaped, and the end of the plug plate (3) can be inserted into the welding gap between two adjacent pipe sections (101); A No. 2 rod (4) is fixedly connected to both side walls of each No. 1 ring body (1), a No. 2 ring body (5) is fixedly connected to the end of the No. 2 rod (4), and a plurality of No. 2 screw rods (6) are threadedly connected to the No. 2 ring body (5); The end of each of the second screw rods (6) points to the axis position of the second ring body (5), and the end of the second screw rod (6) is rotatably connected to a pad (7); The No. 1 ring body (1) comprises two No. 1 arc plates (8), the two No. 1 arc plates (8) are symmetrically arranged on the pipe (101), L-shaped No. 1 rods (9) are evenly and symmetrically fixed to both ends of the two No. 1 arc plates (8), an insertion hole (10) is opened at the end of each No. 1 rod (9), and a fixing rod (11) is inserted into the insertion holes (10) at the ends of the two No. 1 rods (9); The second ring body (5) comprises two symmetrically arranged second arc-shaped plates (12), one side wall of the second arc-shaped plate (12) is fixedly connected to the end of the second rod (4), and the two opposite ends of the two second arc-shaped plates (12) are each provided with a fixing hole (13), the fixing hole (13) and the insertion hole (10) on the same side of the pipeline (101) are coaxially arranged, and the fixing hole (13) and the insertion hole (10) on the same side of the pipeline (101) are inserted with the same fixing rod (11).

2. A municipal pipeline connection device according to claim 1, characterized in that: The fixing rod (11) comprises a shaft body (14), both ends of the shaft body (14) are provided with sleeves (15), a limit plate (16) is provided in the middle of the shaft body (14), the limit plate (16) and the sleeve (15) are connected via a spring (17), and the spring (17) is sleeved on the shaft body (14), the spring (17) can push the sleeve (15) to the end of the shaft body (14), and squeeze the sleeve (15) into the insertion hole (10) and the fixing hole (13).

3. A municipal pipeline connection device according to claim 1, characterized in that: A set of support components is provided on the outer side of each No. 2 ring body (5), the support components being used to support the pipe (101), and each set of support components comprises two support frames (18), a plurality of No. 3 screw rods (19) being threadedly connected to the middle portion of each support frame (18), the No. 3 screw rods (19) being used to support and hold the pipe (101).

4. A municipal pipeline connection device according to claim 3, characterized in that: Each group of support components also includes a connecting mechanism, which is used to connect the two support frames (18) in each group together, and the connecting mechanism includes a threaded cylinder (20), both ends of the threaded cylinder (20) are threadedly connected to a limit rod (21), and the end of the limit rod (21) is provided with a U-shaped buckle (29), and the buckle (29) can be buckled on an L-shaped hook body (22) provided on the outer side wall of the support frame (18).

5. A municipal pipeline connection device according to claim 4, characterized in that: The buckle (29) is provided with a spring piece (23), and the spring piece (23) can be embedded in an anti-drop hole (24) provided in a horizontal portion of the hook body (22).

6. A municipal pipeline connection device according to claim 3, characterized in that: The end of each No. 3 screw rod (19) is rotatably connected to a ball (25).

7. A municipal pipeline connection device according to claim 6, characterized in that: A through hole (26) is formed at the axis position of each of the No. 3 screw rods (19), and the through hole (26) extends through to the rotational connection position of the No. 3 screw rod (19) and the ball (25).

8. A municipal pipeline connection device according to claim 4, characterized in that: A support plate (27) is provided on the lower surface of the middle portion of each support frame (18), and the support plate (27) is capable of supporting the lower surface of the second ring body (5).

Images