Steel pipe welding structure
By setting welding planes and inclined surfaces on the end surface of the steel pipe, the problems of low welding quality and low efficiency in the prior art are solved, and more efficient steel pipe welding effect is achieved.
Patent Information
- Application Number
- CN202420216874.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-29
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-29
AI Technical Summary
In the existing steel pipe welding technology, the welding quality is not high and the efficiency is low. It is mainly because the welding surface is flat, resulting in a small welding area, so it is impossible to perform efficient welding on the inner and outer sides of the steel pipe at the same time.
Welding planes and welding bevels are set on the end surfaces of adjacent steel pipes to form a welding bevel, and the welded body is filled in the welding bevel to increase the welding area and allow welding on the inside and outside welding at the same time.
Improve welding quality and efficiency, and simplify construction operations by expanding welding area and providing multi-point operating positions.
Smart Images
Figure CN222154336U_ABST
Abstract
Description
Technical Field
[0001] The embodiment of the utility model relates to the technical field of welding construction, and in particular to a steel pipe welding structure. Background Art
[0002] In recent years, with the rapid development of urban construction and the gradual improvement of urban water supply facilities, the use of trenchless construction technology in water supply pipelines has become more and more widespread. As a more prominent pipe jacking technology among trenchless technologies, it has developed rapidly and has broad application prospects.
[0003] Pipe jacking technology refers to the use of large diameter steel pipes for continuous jacking construction. To this end, the welding quality of the joints of the steel pipes (i.e. the welded joints between two steel pipes) needs to be high, and the welding efficiency needs to be high to meet the construction deadline.
[0004] However, the current welding between steel pipes usually adopts plane welding directly, and welding can usually only be performed on the inner side of two adjacent steel pipes, or can only be performed on the outer side of two adjacent steel pipes. Therefore, the welding quality is not high, and the welding operation is inconvenient, resulting in low welding efficiency. Utility Model Content
[0005] In order to solve the above technical problems or at least partially solve the above technical problems, an embodiment of the utility model provides a steel pipe welding structure.
[0006] The embodiment of the utility model provides a steel pipe welding structure, including a steel pipe and a welding body;
[0007] There are at least two steel pipes, and the at least two steel pipes are arranged in sequence along the axial direction of the steel pipe;
[0008] Among any two adjacent steel pipes, a welding plane is provided on an end face of one of the steel pipes close to the other steel pipe, and a welding slope is formed on a side of the other steel pipe close to the welding plane, and in the direction from the bottom of the steel pipe to the top of the steel pipe, the welding slope is inclined in a direction away from the welding plane, and the welding plane and the welding slope together enclose a welding groove; each welding groove is welded and filled with the welding body.
[0009] In some embodiments, each of the steel pipes includes a first end and a second end arranged along the axial direction of the steel pipe, the end face of the first end is provided with the welding plane, the end face of the second end is provided with the welding bevel, and the welding bevel is inclined in a direction close to the first end.
[0010] In some embodiments, each of the steel pipes comprises an upper half steel pipe and a lower half steel pipe that are symmetrically arranged, and the upper half steel pipe and the lower half steel pipe are integrally formed;
[0011] The wide end of the welding groove between two adjacent upper half steel pipes is arranged away from the inner cavity of the steel pipe; the wide end of the welding groove between two adjacent lower half steel pipes is arranged toward the inner cavity of the steel pipe.
[0012] In some embodiments, at least two first operating positions for standing operation are formed on the outer wall of the upper half of the steel pipe, and the at least two first operating positions are arranged in sequence along the circumference of the upper half of the steel pipe.
[0013] In some embodiments, at least two second operating positions for standing operation are formed on the inner wall of the lower half of the steel pipe, and the at least two second operating positions are arranged in sequence along the circumference of the lower half of the steel pipe.
[0014] In some embodiments, the angle between the welding bevel and the radial direction of the steel pipe is not less than 40°.
[0015] In some embodiments, the welding plane is smoothly set; and / or the welding bevel is smoothly set.
[0016] In some embodiments, in a direction from a narrow end of the welding groove to a wide end of the welding groove, the weld body includes a base welding layer, a filling welding layer and a surface welding layer connected in sequence.
[0017] In some embodiments, the filling welding layer includes at least two sub-filling welding layers connected in sequence, and the at least two sub-filling welding layers are arranged in sequence from the base welding layer to the surface welding layer.
[0018] In some embodiments, the dimension of the welded body in the radial direction of the steel pipe is not less than 32 mm;
[0019] and / or, the dimension of the base welding layer in the radial direction of the steel pipe is not less than 2 mm;
[0020] And / or, the size of the base welding layer in the axial direction of the steel pipe ranges from 2 mm to 3 mm.
[0021] Compared with the prior art, the technical solution provided by the embodiment of the utility model has the following advantages:
[0022] The embodiment of the utility model provides a steel pipe welding structure, including a steel pipe and a welding body. There are at least two steel pipes, and the at least two steel pipes are arranged in sequence along the axial direction of the steel pipe. Among any two adjacent steel pipes, a welding plane is provided on an end face of one of the steel pipes close to the other steel pipe, and a welding slope is formed on a side of the other steel pipe close to the welding plane. In the direction from the bottom of the steel pipe to the top of the steel pipe, the welding slope is inclined in a direction away from the welding plane, and the welding plane and the welding slope are enclosed together to form a welding groove. Each welding groove is welded and filled with a welding body. That is to say, the steel pipe welding structure of the embodiment of the utility model, by setting a welding plane on one end face of one of the two adjacent steel pipes and setting a welding bevel on one end face of the other, so that the welding plane and the welding bevel of the two steel pipes are jointly enclosed to form a welding groove, so that when the solder is welded in the welding groove to form a welded body, the inner surface area of the welding groove is larger, and then the welding area is larger, so the welding quality can be improved, and by forming the welding groove, when the upper and lower parts of the steel pipe are welded, welding can be performed on the inner and outer sides of the steel pipe at the same time to improve the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the embodiments of the utility model, and together with the description, are used to explain the principles of the embodiments of the utility model.
[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0025] Figure 1 It is a partial structural schematic diagram of the steel pipe welding structure described in the embodiment of the utility model;
[0026] Figure 2 The structure of the steel pipe of the steel pipe welding structure described in the embodiment of the utility model is schematically shown. Figure 1 ;
[0027] Figure 3 The structure of the steel pipe of the steel pipe welding structure described in the embodiment of the utility model is schematically shown. Figure 2 ;
[0028] Figure 4 This is a structural schematic diagram of the welded body of the steel pipe welding structure described in an embodiment of the utility model.
[0029] Among them, 1. steel pipe; 11. welding plane; 12. welding bevel; 13. welding groove; 131. wide mouth end; 14. first end; 15. second end; 16. upper half of steel pipe; 17. lower half of steel pipe; 18. first operating position; 19. second operating position; 2. welding body; 21. base welding layer; 22. filling welding layer; 221. sub-filling welding layer; 23. surface welding layer. DETAILED DESCRIPTION
[0030] In order to more clearly understand the above-mentioned purposes, features and advantages of the embodiments of the present invention, the scheme of the embodiments of the present invention will be further described below. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.
[0031] In the following description, many specific details are set forth to facilitate a full understanding of the embodiments of the utility model, but the embodiments of the utility model can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the utility model, rather than all of the embodiments.
[0032] Reference Figures 1 to 4 As shown, this embodiment provides a steel pipe welding structure, including a steel pipe 1 and a welding body 2.
[0033] There are at least two steel pipes 1 , and the at least two steel pipes 1 are arranged in sequence along the axial direction of the steel pipe 1 .
[0034] Among any two adjacent steel pipes 1, a welding plane 11 is provided on one end face of one of the steel pipes 1 close to the other steel pipe 1, and a welding bevel 12 is formed on one side of the other steel pipe 1 close to the welding plane 11. In the direction from the bottom of the steel pipe 1 to the top of the steel pipe 1, the welding bevel 12 is inclined in a direction away from the welding plane 11, and the welding plane 11 and the welding bevel 12 are enclosed together to form a welding groove 13. Each welding groove 13 is welded and filled with a welding body 2.
[0035] In a specific implementation, for example, the steel pipe 1 is set to be two as an example. Figure 1 As shown, for example, the axial direction of the steel pipe 1 is Figure 1 In the left and right directions of the drawing shown, the two steel pipes 1 are arranged in sequence along the left and right directions. The right end face of the left steel pipe 1 can be formed into a welding plane 11, and the left side face of the right steel pipe 1 can be formed into a welding slope 12 inclined to the right, so that the left steel pipe 1 and the right steel pipe 1 can be enclosed to form a Figure 1 and Figure 4The V-shaped welding groove 13 shown is used to weld the solder in the welding groove 13 to form a welding body 2, thereby realizing the function of reliably welding the left steel pipe 1 and the right steel pipe 1 together. Compared with the problem of poor welding quality caused by the welding surfaces of the two steel pipes 1 being flat in the prior art, one of the two steel pipes 1 in this embodiment is provided with a welding plane 11 and the other is provided with a welding inclined surface 12, so that the welding surface of the welding groove 13 formed by the two is larger, which can effectively improve the welding quality.
[0036] Alternatively, in other implementations, the right end face of the left steel pipe 1 may be formed as a leftwardly inclined welding slope 12, and the left side face of the right steel pipe 1 may be formed as a welding plane 11, so that the left steel pipe 1 and the right steel pipe 1 may be enclosed to form a Figure 1 and Figure 4 The V-shaped welding groove 13 shown has the same specific effect as above.
[0037] In addition, in this embodiment, since the welding groove 13 is V-shaped, the steel pipe 1 can be considered to include an upper half located above the center line and a lower half located below the center line. At this time, the wide mouth end 131 of the V-shaped groove between the two adjacent upper half steel pipes 1 faces upward, and the wide mouth end 131 of the V-shaped groove between the two adjacent lower half steel pipes 1 also faces upward, so when welding the two adjacent upper half steel pipes 1, the operator can stand on the top of the upper half steel pipe 1 to perform welding operations, and the operator who welds the two adjacent lower half steel pipes 1 can stand on the upper surface of the lower half steel pipe 1 to perform welding operations, that is, when the upper half steel pipe 1 is welded, the operator is located on the outer top wall of the entire steel pipe 1, and when the lower half steel pipe 1 is welded, the operator is located on the inner bottom wall of the entire steel pipe 1, so that the welding operations of the upper half steel pipe 1 and the welding operations of the lower half steel pipe 1 can be performed simultaneously, which can not only improve the operating efficiency but also facilitate the welding construction operations between operators.
[0038] The steel pipe welding structure of this embodiment includes a steel pipe 1 and a welding body 2. There are at least two steel pipes 1, and the at least two steel pipes 1 are arranged in sequence along the axial direction of the steel pipe 1. Among any two adjacent steel pipes 1, a welding plane 11 is provided on an end face of one steel pipe 1 close to the other steel pipe 1, and a welding inclined surface 12 inclined in a direction away from the welding plane 11 is formed on a side of the other steel pipe 1 close to the welding plane 11, and the welding plane 11 and the welding inclined surface 12 are enclosed together to form a welding groove 13. Each welding groove 13 is welded and filled with a welding body 2. That is to say, the steel pipe welding structure of the embodiment of the utility model is provided with a welding plane 11 on one end face of one of two adjacent steel pipes 1, and a welding bevel 12 is provided on one end face of the other, so that the welding planes 11 and the welding bevels 12 of the two steel pipes 1 are jointly enclosed to form a welding groove 13, so that when the solder is welded in the welding groove 13 to form a welded body 2, the inner surface area of the welding groove 13 is larger, and the welding area is larger, so the welding quality can be improved, and by forming the welding groove 13, when the upper and lower parts of the steel pipe 1 are welded, welding can be performed simultaneously on the inner and outer sides of the steel pipe 1 to improve the welding efficiency.
[0039] Reference Figure 2 As shown, in some embodiments, each steel pipe 1 includes a first end 14 and a second end 15 arranged along the axial direction of the steel pipe 1, the end face of the first end 14 is provided with a welding plane 11, the end face of the second end 15 is provided with a welding bevel 12, and the welding bevel 12 is inclined in a direction close to the first end 14.
[0040] That is to say, for each steel pipe 1, a welding plane 11 is provided at the first end 14 and a welding bevel 12 is provided at the second end 15. When two steel pipes 1 need to be welded, different ends of the two steel pipes 1 are arranged close to each other.
[0041] For example, for Figure 1 For the two steel pipes 1 on the left and right sides shown, for example, the first end 14 of the left steel pipe 1 is arranged close to the right steel pipe 1, and the second end 15 of the right steel pipe 1 is arranged close to the left steel pipe 1, so that the joint surface between the two adjacent steel pipes 1 is respectively enclosed by a welding plane 11 and a welding bevel 12 to form a V-shaped welding groove 13.
[0042] Similarly, for example, if the second end 15 of the steel pipe 1 on the left is disposed close to the steel pipe 1 on the right, then the first end 14 of the steel pipe 1 on the right is disposed close to the steel pipe 1 on the left.
[0043] Reference Figure 1 and Figure 3As shown, in some embodiments, each steel pipe 1 includes an upper half steel pipe 16 and a lower half steel pipe 17 that are symmetrically arranged, and the upper half steel pipe 16 and the lower half steel pipe 17 are integrally formed.
[0044] The wide end 131 of the welding groove 13 between two adjacent upper half steel pipes 16 is arranged away from the inner cavity of the steel pipe 1. The wide end 131 of the welding groove 13 between two adjacent lower half steel pipes 17 is arranged toward the inner cavity of the steel pipe 1.
[0045] It should be noted that, refer to Figure 3 In the upper and lower directions of the drawings shown, the steel pipe 1 is set here to include an upper half steel pipe 16 and a lower half steel pipe 17 for the purpose of illustrating the orientation of the wide mouth end 131 of the welding groove 13 at different positions, while the steel pipe 1 itself is an integrated complete structure in which the upper half steel pipe 16 and the lower half steel pipe 17 are integrally formed.
[0046] Reference Figure 1 As shown, at this time, the wide mouth end 131 of the welding groove 13 between the two adjacent upper half steel pipes 16 and the wide mouth end 131 of the welding groove 13 between the two adjacent lower half steel pipes 17 are both facing upward, so that the wide mouth end 131 of the welding groove 13 between the two adjacent upper half steel pipes 16 is facing the outer wall of the steel pipe 1, and the wide mouth end 131 of the welding groove 13 between the two adjacent lower half steel pipes 17 is facing the inner wall of the steel pipe 1, so that the operator who welds the two adjacent lower half steel pipes 1 can stand on the upper surface of the lower half steel pipe 1 to perform welding operations, that is, when the upper half steel pipe 1 is welded, the operator is located on the outer top wall of the entire steel pipe 1, and when the lower half steel pipe 1 is welded, the operator is located on the inner bottom wall of the entire steel pipe 1, so that the welding operations of the upper half steel pipe 1 and the welding operations of the lower half steel pipe 1 can be performed simultaneously, which can not only improve the operating efficiency but also facilitate the welding construction operations between operators.
[0047] Exemplarily, the wide-mouth end 131 referred to in this embodiment is the position corresponding to the maximum cross section of the entire welding groove 13 .
[0048] Specifically, refer to Figure 3 As shown, in some embodiments, at least two first operating positions 18 for operators to stand are formed on the outer wall of the upper half of the steel pipe 16, and the at least two first operating positions 18 are arranged in sequence along the circumference of the upper half of the steel pipe 16, so as to facilitate at least two operators to stand on the top of the upper half of the steel pipe 16 to perform welding operations. At this time, the operators are located outside the steel pipe 1 and at the top of the steel pipe 1.
[0049] Similarly, refer to Figure 3As shown, at least two second operating positions 19 for operators to stand are formed on the inner wall of the lower half of the steel pipe 17, and the at least two second operating positions 19 are arranged in sequence along the circumference of the lower half of the steel pipe 17, so as to facilitate at least two other operators to stand on the upper surface of the lower half of the steel pipe 17 to perform welding operations. At this time, the operators are located inside the steel pipe 1.
[0050] In some embodiments, the angle between the welding bevel 12 and the radial direction of the steel pipe 1 is not less than 40°.
[0051] That is, by setting the angle α1 between the welding bevel 12 and the radial direction of the steel pipe 1 to be not less than 40°, a V-shaped groove of a desired shape can be formed to facilitate welding of solder therein to form a welded body 2. At this time, the angle α2 between the welding bevel 12 and the horizontal plane is as follows: Figure 4 50° shown.
[0052] For example, the angle α1 between the welding bevel 12 and the radial direction of the steel pipe 1 can be set to 40°, or 45° or 50°.
[0053] In some embodiments, the welding plane 11 and the welding bevel 12 can be smoothly set to facilitate welding of solder in the welding groove 13, so that the solder can be fully connected with the welding plane 11 and the welding bevel 12 to improve the welding quality.
[0054] Reference Figure 1 and Figure 4 As shown, in some embodiments, in the direction from the narrow end of the welding groove 13 to the wide end 131 of the welding groove 13, the welding body 2 includes a base welding layer 21, a filling welding layer 22 and a surface welding layer 23 connected in sequence.
[0055] That is, the bottom welding layer 21 , the filling welding layer 22 and the surface welding layer 23 are formed by welding in the welding groove 13 in sequence, so that the two steel pipes 1 can be reliably welded and fixed together.
[0056] Reference Figure 4 As shown, in some embodiments, the filling welding layer 22 includes at least two sub-filling welding layers 221 connected in sequence, and the at least two sub-filling welding layers 221 are arranged in sequence from the bottom welding layer 21 to the surface welding layer 23.
[0057] For example, the sub-filling welding layer 221 can be set to two layers, three layers, four layers, or as Figure 4 The specific number of sub-filling welding layers 221 can be set according to actual needs, and this embodiment does not make any specific limitation on this.
[0058] Reference Figure 1As shown, in some embodiments, the size of the weld body 2 in the radial direction of the steel pipe 1 is not less than 32 mm. Figure 4 The dimension L1 in the z direction (as shown) can be set to 32 mm.
[0059] In some embodiments, the size of the bottom welding layer 21 in the radial direction of the steel pipe 1 is not less than 2 mm. For example, the bottom welding layer 21 can be set in the radial direction of the steel pipe 1 (refer to Figure 4 The dimension L2 in the z direction (as shown) can be 2 mm.
[0060] In some embodiments, the size of the bottom welding layer 21 in the axial direction of the steel pipe 1 ranges from 2 mm to 3 mm. For example, the bottom welding layer 21 can be set in the axial direction of the steel pipe 1 (refer to Figure 4 The dimension L3 in the x-direction (as shown) is 2 mm or 3 mm.
[0061] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0062] The above description is only a specific implementation of the embodiment of the utility model, so that those skilled in the art can understand or implement the embodiment of the utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the embodiment of the utility model. Therefore, the embodiment of the utility model will not be limited to these embodiments described herein, but will conform to the widest range consistent with the principles and novel features of the embodiment of the utility model described herein.
Claims
1. A steel pipe welding structure, characterized in that: It comprises a steel pipe (1) and a welded body (2); There are at least two steel pipes (1), and the at least two steel pipes (1) are arranged in sequence along the axial direction of the steel pipe (1); Among any two adjacent steel pipes (1), a welding plane (11) is provided on an end face of one of the steel pipes (1) close to the other of the steel pipes (1), a welding bevel (12) is formed on a side of the other of the steel pipes (1) close to the welding plane (11), and in a direction from the bottom of the steel pipe (1) to the top of the steel pipe (1), the welding bevel (12) is inclined in a direction away from the welding plane (11), and the welding plane (11) and the welding bevel (12) together enclose a welding groove (13); Each of the welding grooves (13) is welded and filled with the welding body (2).
2. The steel pipe welding structure according to claim 1, characterized in that: Each of the steel pipes (1) comprises a first end (14) and a second end (15) arranged along the axial direction of the steel pipe (1); the end surface of the first end (14) is provided with the welding plane (11); the end surface of the second end (15) is provided with the welding bevel (12); and in the direction from the bottom of the steel pipe (1) to the top of the steel pipe (1), the welding bevel (12) is inclined in a direction close to the first end (14).
3. The steel pipe welding structure according to claim 1, characterized in that: Each of the steel pipes (1) comprises an upper half steel pipe (16) and a lower half steel pipe (17) which are symmetrically arranged, and the upper half steel pipe (16) and the lower half steel pipe (17) are integrally formed; The wide-mouth end (131) of the welding groove (13) between two adjacent upper half steel pipes (16) is arranged away from the inner cavity of the steel pipe (1); and the wide-mouth end (131) of the welding groove (13) between two adjacent lower half steel pipes (17) is arranged toward the inner cavity of the steel pipe (1).
4. The steel pipe welding structure according to claim 3, characterized in that: At least two first operating positions (18) for operation and standing are formed on the outer wall of the upper half steel pipe (16), and the at least two first operating positions (18) are arranged in sequence along the circumference of the upper half steel pipe (16).
5. The steel pipe welding structure according to claim 4, characterized in that: At least two second operating positions (19) for operation and standing are formed on the inner wall of the lower half steel pipe (17), and the at least two second operating positions (19) are arranged in sequence along the circumference of the lower half steel pipe (17).
6. The steel pipe welded structure according to claim 1, characterized in that: The angle between the welding bevel (12) and the radial direction of the steel pipe (1) is not less than 40°.
7. The steel pipe welded structure according to claim 1, characterized in that: The welding plane (11) is smoothly arranged; and / or the welding bevel (12) is smoothly arranged.
8. The steel pipe welded structure according to any one of claims 1 to 7, characterized in that: In the direction from the narrow end of the welding groove (13) to the wide end (131) of the welding groove (13), the welding body (2) comprises a base welding layer (21), a filling welding layer (22) and a surface welding layer (23) which are connected in sequence.
9. The steel pipe welding structure according to claim 8, characterized in that: The filling welding layer (22) comprises at least two sub-filling welding layers (221) connected in sequence, and the at least two sub-filling welding layers (221) are arranged in sequence along the direction from the base welding layer (21) to the surface welding layer (23).
10. The steel pipe welded structure according to claim 8, characterized in that: The dimension of the welded body (2) in the radial direction of the steel pipe (1) is not less than 32 mm; and / or, the size of the bottom welding layer (21) in the radial direction of the steel pipe (1) is not less than 2 mm; And / or, the size of the bottom welding layer (21) along the axial direction of the steel pipe (1) ranges from 2 mm to 3 mm.