Steel pipe welding device based on building up-down synchronous reverse construction method

Abstract

The utility model discloses a kind of steel pipe welding device based on building up and down synchronous reverse construction method construction, it is related to building construction technical field, including steel pipe assembly, containing two mutually symmetrical arrangement steel pipe, as the construction object of welding operation;Guiding operation mechanism, sleeve is set in two the outside of steel pipe, for providing guiding and positioning basis for welding operation.The utility model design structure is reasonable, it can be quickly assembled by sector plate and bolt nut group, it is convenient to quickly install and disassemble in narrow space;Meanwhile, the automatic sliding of sliding block along circular guide groove replaces the operation of artificial around steel pipe welding, reduces the limb activity of operating personnel in confined space, reduces operation difficulty, avoids the efficiency decline caused by space limitation and artificial fatigue, and guarantees welding track stability by the rigidity datum of guiding operation mechanism, reduces artificial operation deviation, improves welding quality.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically a steel pipe welding device based on the synchronous reverse construction method of building construction. Background Technology

[0002] In the field of construction engineering, the simultaneous top-to-bottom reverse construction method is widely used in projects such as deep foundation pits and high-rise buildings because it can effectively shorten the construction period and reduce the impact on the surrounding environment. This method involves first constructing the vertical support system of the underground structure, and then simultaneously constructing it from top to bottom. Steel pipes, with their high strength, lightweight, and excellent mechanical properties, become the core components for vertical support and structural connections. To ensure the overall stability and load-bearing capacity of the support system, multiple sections of steel pipes must be precisely welded to form continuous load-bearing units. Therefore, the quality and efficiency of steel pipe welding directly affect the construction progress and structural safety.

[0003] However, in existing technologies, the simultaneous vertical and horizontal reverse construction method for welding steel pipes suffers from limited working space, often at height or within a confined environment in a foundation pit. This restricts worker space, hinders operation, slows down work efficiency, and increases costs. Therefore, we provide a steel pipe welding device based on the simultaneous vertical and horizontal reverse construction method for buildings to solve these problems. Utility Model Content

[0004] Technical problem solved: This utility model proposes a steel pipe welding device based on the synchronous reverse construction method of building construction. Through the cooperation between components such as fan-shaped plates, bolt and nut groups, and sliding blocks, it solves the problem that in the existing technology, when welding steel pipes in the synchronous reverse construction method of building construction, the narrow working space, which is mostly in a restricted environment at high altitude or in the foundation pit, restricts the space for operators, makes operation inconvenient, slows down the work efficiency, and increases the work cost.

[0005] Technical solution: To achieve the above objectives, this utility model provides the following technical solution: a steel pipe welding device based on the synchronous reverse construction method of building construction, including a steel pipe assembly containing two symmetrically arranged steel pipes as the construction objects for welding operations;

[0006] A guiding mechanism, fitted around the two steel pipes, is used to provide guidance and positioning for the welding operation;

[0007] The distance adjustment mechanism is located in the middle of the guiding operation mechanism and is used to adjust the distance between the welding equipment and the steel pipe to adapt to different welding conditions.

[0008] Furthermore, the guiding mechanism includes two sets of mutually symmetrical sector plates. Each set of sector plates has a semi-circular guide groove on one side that is close to each other. When the sides of each set of sector plates are fitted together, they form a disc with a central hole. The two sets of semi-circular guide grooves are joined together by the two sets of sector plates to form two mutually symmetrical circular guide grooves.

[0009] Furthermore, each of the two sets of fan-shaped plates has a semi-circular ring fixedly connected to its opposite side. The two sets of semi-circular rings are joined together by the two sets of fan-shaped plates to form two mutually symmetrical rings. The central axis of the rings is collinear with the central axis of the hole in the disc. The outer surface of each of the two rings is provided with a set of equidistant and concentric first threaded holes. The inner sidewall of the first threaded hole is threaded with a handwheel screw. One end of each of the two sets of handwheel screws abuts against the outer surface of the two steel pipes.

[0010] Furthermore, each of the two sets of fan-shaped plates has two symmetrical connecting plates fixedly connected to its opposite side. Each connecting plate has a second threaded hole on one side. The connecting plates of each pair of corresponding sets fit together by splicing the two sets of fan-shaped plates, and the corresponding second threaded holes are aligned with each other. Each pair of aligned second threaded holes is provided with a bolt and nut set, and the positions of the fan-shaped plate and the semi-circular ring are fixed by the bolt and nut set.

[0011] Furthermore, a first connecting rod is fixedly connected to one side of each of the two sets of fan-shaped plates that are close to each other, and a sliding block is slidably connected to the inner sidewall of each of the two circular guide grooves, and a second connecting rod is fixedly connected to one side of each of the two sliding blocks that are close to each other.

[0012] Furthermore, the distance adjustment mechanism includes a sliding frame, the upper and lower sides of which are fixedly connected to the close ends of two mutually symmetrical second connecting rods, respectively. The sliding frame has a sliding groove on its inner side and a through hole on its side. A moving block is slidably connected in the sliding groove. A pulse arc welding gun is installed on the moving block. A third threaded hole is provided on the moving block. A threaded rod is threadedly connected in the third threaded hole. One end of the threaded rod passes through the through hole and is connected to a rotating disk.

[0013] Beneficial effects: Compared with existing technologies, this steel pipe welding device based on the synchronous reverse construction method of buildings has the following beneficial effects:

[0014] I. This steel pipe welding device, based on the synchronous reverse construction method of building construction, facilitates rapid installation and disassembly in narrow spaces through the quick assembly of fan-shaped plates and bolt and nut assemblies. At the same time, the automated sliding of the sliding block along the circular guide groove replaces the manual operation of welding around the steel pipe, reducing the physical activity of operators in the confined space, reducing the difficulty of operation, and avoiding the decrease in efficiency caused by space limitations and human fatigue. Meanwhile, the rigid reference of the guiding operation mechanism ensures the stability of the welding trajectory, reduces the deviation of manual operation, and improves the welding quality.

[0015] II. This steel pipe welding device, based on the synchronous reverse construction method for buildings, precisely adjusts the distance between the pulse arc welding torch and the steel pipe through the cooperation of a threaded rod and a moving block, adapting to steel pipes of different wall thicknesses and welding process parameters. The handwheel screw of the guiding operation mechanism can adjust the holding force to adapt to steel pipes of different diameters, meeting various working conditions without changing equipment. In addition, precise welding positioning and quality control make the overall structural unit formed by the welded steel pipe stronger, avoiding instability of the support system caused by weld defects, ensuring the safety of the building structure, and further expanding the application range of the device in projects such as deep foundation pits and high-rise buildings. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural exploded view of the guiding operation mechanism of this utility model;

[0019] Figure 3 This is a three-dimensional structural exploded view of the distance adjustment mechanism of this utility model;

[0020] Figure 4 This is a cross-sectional view of the moving block of this utility model;

[0021] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Guiding mechanism; 101. Sector plate; 102. Semi-circular guide groove; 103. Semi-circular ring; 104. First threaded hole; 105. Handwheel screw; 106. Connecting plate; 107. Second threaded hole; 108. Bolt and nut assembly; 109. First connecting rod; 110. Sliding block; 111. Second connecting rod; 2. Distance adjustment mechanism; 201. Sliding frame; 202. Slide groove; 203. Through hole; 204. Moving block; 205. Pulse arc welding gun; 206. Third threaded hole; 207. Threaded rod; 208. Rotary disk; 3. Steel pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-5As shown, this utility model provides a technical solution: a steel pipe welding device based on the synchronous reverse construction method for buildings, comprising a steel pipe assembly including two symmetrically arranged steel pipes 3 as the construction objects for welding operations; a guiding operation mechanism 1, sleeved on the outside of the two steel pipes 3, for providing guidance and positioning for the welding operation; and a distance adjustment mechanism 2, located in the middle of the guiding operation mechanism 1, for adjusting the distance between the welding equipment and the steel pipes 3 to adapt to different welding conditions; the guiding operation mechanism 1 includes two sets of symmetrical fan-shaped... The plate 101 has two sets of fan-shaped plates 101, each with a semi-circular guide groove 102 on one side that is close to each other. When the sides of each set of fan-shaped plates 101 are joined together, they form a disc with a central hole. The two sets of semi-circular guide grooves 102, formed by the splicing of the two sets of fan-shaped plates 101, create two symmetrical circular guide grooves. The two sets of fan-shaped plates 101 also have semi-circular rings 103 fixedly connected to their opposite sides. These semi-circular rings 103, formed by the splicing of the two sets of fan-shaped plates 101, create two symmetrical circular rings, with the central axis of the rings aligned with the disc. The central axes of the holes are collinear. A set of equidistant, concentric first threaded holes 104 are provided on the outer surfaces of both annexes. Handwheel screws 105 are threaded onto the inner walls of the first threaded holes 104. One end of each handwheel screw 105 abuts against the outer surfaces of two steel pipes 3. Two symmetrical connecting plates 106 are fixedly connected to the opposite sides of each set of fan-shaped plates 101. A second threaded hole 107 is provided on one side of each connecting plate 106. Each pair of corresponding connecting plates 106 is connected via two sets of fan-shaped plates 104. All the splices of 1 fit together, and the corresponding second threaded holes 107 are aligned with each other. Each pair of aligned second threaded holes 107 is provided with a bolt and nut group 108, and the positions of the sector plate 101 and the semi-circular ring 103 are fixed by the bolt and nut group 108. The two groups of sector plates 101 are respectively fixedly connected to the side of their close proximity with the first connecting rod 109. The inner sidewalls of the two circular guide grooves are slidably connected with sliding blocks 110, and the two sliding blocks 110 are respectively fixedly connected to the side of their close proximity with the second connecting rod 111.

[0025] The steel pipe 3 is positioned and installed by the guiding mechanism 1. Two sets of fan-shaped plates 101 approach and fit together to form a disc with a central hole. The semi-circular guide grooves 102 on the sides are spliced ​​to form two symmetrical circular guide grooves, providing a reference for the welding trajectory. At the same time, the semi-circular rings 103 on the outer side of the fan-shaped plates 101 are spliced ​​to form a complete ring. The handwheel screw 105 on the ring is rotated so that one end of it presses against the outer surface of the steel pipe 3. Through the synergistic action of multiple sets of handwheel screws 105, the two steel pipes 3 are firmly fixed in the circular guide groove, ensuring that the steel pipes 3 do not shift during the welding process. At this time, the two sets of fan-shaped plates 101 are fixed by the bolt and nut group 108 on the connecting plate 106, which facilitates quick installation and disassembly in narrow spaces, reduces the limb movement of operators in confined spaces, reduces the difficulty of operation, and avoids the decrease in efficiency caused by space limitations and human fatigue. At the same time, the rigid reference of the guiding mechanism 1 ensures the stability of the welding trajectory, reduces human operation deviation, and improves the welding quality.

[0026] The distance adjustment mechanism 2 includes a sliding frame 201. The upper and lower sides of the sliding frame 201 are fixedly connected to the close ends of two mutually symmetrical second connecting rods 111. The sliding frame 201 has a sliding groove 202 on its inner side and a through hole 203 on its side. A moving block 204 is slidably connected in the sliding groove 202. A pulse arc welding gun 205 is installed on the moving block 204. A third threaded hole 206 is opened on the moving block 204. A threaded rod 207 is threadedly connected in the third threaded hole 206. One end of the threaded rod 207 passes through the through hole 203 and is connected to a rotating disk 208.

[0027] Based on the working conditions such as the wall thickness and welding parameters of the steel pipe 3, the rotating disk 208 of the rotation distance adjustment mechanism 2 drives the threaded rod 207 to rotate within the through hole 203. Since the threaded rod 207 is threadedly connected to the third threaded hole 206 on the moving block 204, and the moving block 204 is limited by the slide groove 202, the rotation of the threaded rod 207 is converted into the linear movement of the moving block 204 along the slide groove 202. This, in turn, drives the pulse arc welding gun 205 installed on the moving block 204 to move closer to or away from the steel pipe 3, precisely adjusting the distance between the welding gun and the steel pipe 3. This allows for the satisfaction of various working conditions without equipment replacement. Precise welding positioning and quality control make the overall integrity of the stress unit formed by the welding of the steel pipe 3 stronger, avoiding instability of the support system caused by weld defects, ensuring the safety of the building structure, and further expanding the application range of the device in projects such as deep foundation pits and high-rise buildings.

[0028] Working Principle: In operation, firstly, the steel pipe 3 is positioned and installed via the guiding mechanism 1. Two sets of fan-shaped plates 101 approach and fit together, forming a disc with a central hole. The semi-circular guide grooves 102 on their sides are spliced ​​together to form two symmetrical circular guide grooves, providing a reference for the welding trajectory. Simultaneously, the semi-circular rings 103 on the outer side of the fan-shaped plates 101 are spliced ​​together to form a complete ring. Rotating the handwheel screw 105 on the ring causes one end to press against the outer surface of the steel pipe 3. Through the coordinated action of multiple sets of handwheel screws 105, the two steel pipes 3 are firmly fixed within the circular guide grooves, ensuring that the steel pipes 3 do not shift during welding. At this time, the two sets of fan-shaped plates 101 are fixed by the bolt and nut assembly 108 on the connecting plate 106, ensuring the stability of the overall structure. Next, the distance adjustment mechanism 2 adapts to the welding conditions. Before welding, based on the wall thickness of the steel pipe 3 and welding parameters... According to the requirements of various working conditions, the rotating disk 208 of the rotation distance adjustment mechanism 2 drives the threaded rod 207 to rotate in the through hole 203. Since the threaded rod 207 is threadedly connected to the third threaded hole 206 on the moving block 204, and the moving block 204 is limited by the slide groove 202, the rotation of the threaded rod 207 is converted into the linear movement of the moving block 204 along the slide groove 202, which in turn drives the pulse arc welding gun 205 installed on the moving block 204 to move closer to or away from the steel pipe 3, and precisely adjust the distance between the welding gun and the steel pipe 3. Finally, the circumferential welding operation is performed. During welding, the sliding block 110 slides along the circular guide groove, and drives the distance adjustment mechanism 2 to move synchronously through the second connecting rod 111, so that the pulse arc welding gun 205 makes a circumferential movement along the outer wall of the steel pipe 3. With the adjusted distance parameters, the continuous welding at the connection of the two steel pipes 3 is completed, forming a complete circumferential weld.

[0029] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A steel pipe welding device based on the synchronous reverse construction method for buildings, characterized in that: Includes: steel pipe assembly, comprising two symmetrically arranged steel pipes (3), as the construction object for welding operations; The guiding mechanism (1) is sleeved on the outside of the two steel pipes (3) and is used to provide guidance and positioning for the welding operation; The distance adjustment mechanism (2) is located in the middle of the guide operation mechanism (1) and is used to adjust the distance between the welding equipment and the steel pipe (3) to adapt to different welding conditions.

2. The steel pipe welding device based on the synchronous reverse construction method of building construction according to claim 1, characterized in that: The guiding mechanism (1) includes two sets of symmetrical fan-shaped plates (101). The two sets of fan-shaped plates (101) are provided with semi-circular guide grooves (102) on their side facing each other. When the side facing each other of the two sets of fan-shaped plates (101) are attached together, they form a disc with a central hole. The two sets of semi-circular guide grooves (102) are formed by splicing the two sets of fan-shaped plates (101) to form two symmetrical circular guide grooves.

3. The steel pipe welding device based on the synchronous reverse construction method of building construction according to claim 2, characterized in that: Two sets of fan-shaped plates (101) are fixedly connected to a semi-circular ring (103) on their opposite sides. The two sets of semi-circular rings (103) are joined together by the two sets of fan-shaped plates (101) to form two symmetrical rings. The central axis of the rings is collinear with the central axis of the hole in the disc. The outer surfaces of the two rings are provided with a set of equidistant and concentric first threaded holes (104). The inner sidewall of the first threaded hole (104) is threaded with a handwheel screw (105). One end of the two sets of handwheel screws (105) respectively supports the outer surface of the two steel pipes (3).

4. A steel pipe welding device based on the synchronous reverse construction method for buildings according to claim 3, characterized in that: Two symmetrical connecting plates (106) are fixedly connected to the opposite sides of the two sets of fan-shaped plates (101), and each connecting plate (106) has a second threaded hole (107) on one side. The connecting plates (106) arranged in each pair are fitted together by splicing the two sets of fan-shaped plates (101), and the corresponding second threaded holes (107) are aligned with each other. Each pair of aligned second threaded holes (107) is provided with a bolt and nut group (108), and the positions of the fan-shaped plate (101) and the semi-circular ring (103) are fixed by the bolt and nut group (108).

5. A steel pipe welding device based on the synchronous reverse construction method for buildings according to claim 4, characterized in that: The two sets of fan-shaped plates (101) are respectively fixedly connected to the side of their respective sides that are close to each other, and the inner walls of the two circular guide grooves are slidably connected to sliding blocks (110), and the two sliding blocks (110) are respectively fixedly connected to the side of their respective sides that are close to each other, ...

6. A steel pipe welding device based on the synchronous reverse construction method for buildings according to claim 5, characterized in that: The distance adjustment mechanism (2) includes a sliding frame (201). The upper and lower sides of the sliding frame (201) are fixedly connected to the ends of two symmetrical second connecting rods (111) that are close to each other. The sliding frame (201) has a sliding groove (202) on its inner side and a through hole (203) on its side. A moving block (204) is slidably connected in the sliding groove (202). A pulse arc welding gun (205) is installed on the moving block (204). A third threaded hole (206) is opened on the moving block (204). A threaded rod (207) is threadedly connected in the third threaded hole (206). One end of the threaded rod (207) passes through the through hole (203) and is connected to a rotating disk (208).

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