Steel pipe convenient to splice

Abstract

The steel pipe convenient to splice comprises a steel pipe assembly, the steel pipe assembly comprises a steel pipe body, two first connecting grooves are formed in the end face of the steel pipe body, two first connecting plates are formed between the two first connecting grooves, the first connecting plate on the left side is inserted into the first connecting groove, and the second connecting plate on the right side is inserted into the first connecting groove. The right side first connecting plate is connected into the left side first connecting groove in an inserted mode. According to the steel pipe convenient to splice, the left side first connecting plate is inserted into the right side first connecting groove, the right side first connecting plate is inserted into the left side first connecting groove, and after insertion is completed, the joint between the two steel pipe bodies is welded through electric welding equipment; in this way, the area of the welding portion of the two steel pipe bodies is far larger than the welding area of the two circular sections when the two steel pipe bodies are welded, the stability of welding connection of the steel pipe bodies is achieved by enlarging the welding portion, and the probability of breakage of the welding portion is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipes, in particular to a steel pipe which is easy to splice. Background Art

[0002] Steel with a hollow section whose length is much greater than its diameter or circumference. According to the cross-sectional shape, it can be divided into round, square, rectangular and special-shaped steel pipes; according to the material, it can be divided into carbon structural steel pipes, low alloy structural steel pipes, alloy steel pipes and composite steel pipes; according to the purpose, it can be divided into steel pipes for transportation pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc.

[0003] Existing steel pipes are generally connected by welding when splicing, in which the cross-sections of two steel pipes are fitted together and welded. Taking circular steel pipes as an example, the welds of the two steel pipes after welding are circular, and the welding parts are only one circle of the pipe wall of the steel pipe, and there are fewer welding parts. In this method, when the two steel pipes are subjected to lateral torsion, the welds are easy to break due to the fewer welding parts between the steel pipes; and it is inconvenient to separate the steel pipes after welding again.

[0004] Therefore, the utility model provides a steel pipe that is easy to splice to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a steel pipe that is easy to splice, thereby solving the above-mentioned problems.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a steel pipe that is easy to splice, including a steel pipe assembly, the steel pipe assembly including a steel pipe body, the end face of the steel pipe body is provided with two first connecting grooves, two first connecting plates are formed between the two first connecting grooves, the first connecting grooves and the first connecting plates are both arc-shaped, the angles between the first connecting grooves and the first connecting plates are both ninety degrees, the left first connecting plate is inserted into the first connecting groove, the right first connecting plate is inserted into the left first connecting groove, and a connecting assembly is arranged between the two steel pipe bodies.

[0007] Preferably, the connection assembly comprises a first combined plate and a second combined plate, and the first combined plate and the second combined plate are fixedly connected by bolts.

[0008] By adopting the above technical solution, the first and second combined plates are connected by bolts, so that the combination and disassembly of the two are convenient.

[0009] Preferably: a combination pipe is fixedly installed on the right side of the second combination plate, and two second connecting grooves are opened on the end face of the combination pipe, and two second connecting plates are formed between the two second connecting grooves, the second connecting grooves have the same shape as the first connecting grooves, and the second connecting plates have the same shape as the first connecting plates, the left second connecting plate is plugged into the right first connecting groove, and the right first connecting plate is plugged into the left second connecting groove.

[0010] By adopting the above technical solution, the contact area between the two can be conveniently increased through this connection, so that the welding area is larger during welding.

[0011] Preferably: a combination tube is fixedly installed on the left side of the first combination plate, two second connecting grooves are opened inside the left combination tube, two second connecting plates are formed between the two second connecting grooves, the right second connecting plate is plugged into the left first connecting groove, and the left first connecting plate is plugged into the right second connecting groove.

[0012] By adopting the above technical solution, the contact area between the two can be conveniently increased through this connection, so that the welding area is larger during welding.

[0013] Preferably, holes communicating with the combination pipes are provided inside the first combination plate and the second combination plate, and the combination pipes are communicated with the corresponding steel pipe bodies.

[0014] The above technical solution is adopted to ensure the connectivity inside the steel pipe.

[0015] Preferably: a plug is fixedly installed on the right side of the first combined plate, the plug is connected to the combined pipe through the hole inside the first combined plate, a sealing ring is fixedly installed on the outside of the plug, and the plug is plugged into the hole of the right second combined plate and the inside of the right combined pipe.

[0016] By adopting the above technical solution, the sealing performance after the combination is ensured by the insertion tube and the sealing ring.

[0017] Beneficial Effects

[0018] The utility model provides a steel pipe that is easy to splice. Compared with the prior art, it has the following beneficial effects:

[0019] 1. The steel pipe that is easy to splice is inserted into the first connecting groove on the right side through the first connecting plate on the left side, and the first connecting plate on the right side is inserted into the first connecting groove on the left side. After the insertion is completed, the connection between the two steel pipe bodies is welded by electric welding equipment. In this way, the area of ​​the welding part of the two steel pipe bodies during welding is much larger than the welding area of ​​the two circular cross-sections. By increasing the welding part, the stability of the welding connection of the steel pipe body is achieved, and the probability of fracture at the welding part is reduced.

[0020] 2. The steel pipe that is easy to splice is connected to the steel pipe body through a combination pipe. After the connection, the combination pipes on both sides and the steel pipe body can be connected through the first combination plate and the second combination plate on both sides in combination with bolts. This connection method makes it more convenient to disassemble and reinstall the steel pipe bodies on both sides later, thereby facilitating frequent disassembly and installation of the steel pipe bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation scheme of the utility model or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 This is a structural diagram of the connection assembly and the steel pipe assembly of the utility model;

[0023] Figure 2 It is a schematic diagram of the assembly process of the connection assembly and the steel pipe assembly of the utility model;

[0024] Figure 3 This is a three-dimensional diagram of the disassembled structure of the connection assembly of the utility model;

[0025] Figure 4 It is a schematic diagram of the assembly process of the steel pipe assembly of the utility model.

[0026] In the figure: 1, steel pipe assembly; 11, steel pipe body; 12, first connecting groove; 13, first connecting plate; 2, connecting assembly; 21, first combination plate; 22, second combination plate; 23, bolt; 24, insert; 25, sealing ring; 26, combination pipe; 27, second connecting groove; 28, second connection plate. DETAILED DESCRIPTION

[0027] It should be noted that in the description of the embodiments of the present application, the terms "front, rear", "left, right", "up, down", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application. The terms "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0028] The present application is further described in detail below through drawings and examples.

[0029] Reference Figures 1 to 4 The embodiment of the present application provides a steel pipe that is easy to splice, including a steel pipe assembly 1. The steel pipe assembly 1 includes a steel pipe body 11. Two first connecting grooves 12 are provided on the end face of the steel pipe body 11. Two first connecting plates 13 are formed between the two first connecting grooves 12. The first connecting grooves 12 and the first connecting plates 13 are both arc-shaped. The angles between the first connecting grooves 12 and the first connecting plates 13 are both ninety degrees. The left first connecting plate 13 is inserted into the first connecting groove 12, and the right first connecting plate 13 is inserted into the left first connecting groove 12. A connecting assembly 2 is arranged between the two steel pipe bodies 11.

[0030] In this embodiment, when the two steel pipe bodies 11 are combined, Figure 4 As shown, the first connecting plate 13 on the left is plugged into the first connecting groove 12 on the right, and the first connecting plate 13 on the right is plugged into the first connecting groove 12 on the left. After the plugging is completed, the connection between the two steel pipe bodies 11 is welded by electric welding equipment. This method makes the area of ​​the welding part of the two steel pipe bodies 11 much larger than the welding area of ​​the two circular cross-sections during welding. By increasing the welding part, the stability of the welding connection of the steel pipe body 11 is achieved, and the probability of fracture at the welding part is reduced.

[0031] Reference Figures 1 to 4 In one aspect of the present embodiment, the connection assembly 2 includes a first assembly plate 21 and a second assembly plate 22, and the first assembly plate 21 and the second assembly plate 22 are fixedly connected by bolts 23. A combination pipe 26 is fixedly installed on the right side of the second assembly plate 22, and two second connection grooves 27 are provided on the end surface of the combination pipe 26, and two second connection plates 28 are formed between the two second connection grooves 27. The second connection groove 27 has the same shape as the first connection groove 12, and the second connection plate 28 has the same shape as the first connection plate 13. The left second connection plate 28 is plugged into the right first connection groove 12, and the right first connection plate 13 is plugged into the left second connection groove 27. A combination pipe 26 is fixedly installed on the left side of the first assembly plate 21, and two second connection grooves 27 are provided inside the left assembly pipe 26, and two second connection grooves 27 are formed between the two second connection grooves 27. The right second connection plate 28 is plugged into the left first connection groove 12, and the left first connection plate 13 is plugged into the right second connection groove 27.

[0032] The first and second assembly plates 21 and 22 are provided with holes in communication with the assembly tube 26, and the assembly tube 26 is in communication with the corresponding steel pipe body 11. An insert tube 24 is fixedly installed on the right side of the first assembly plate 21, and the insert tube 24 is in communication with the assembly tube 26 through the hole in the first assembly plate 21. A sealing ring 25 is fixedly installed on the outside of the insert tube 24, and the insert tube 24 is plugged into the hole of the second assembly plate 22 on the right side and the inside of the assembly tube 26 on the right side.

[0033] In this embodiment, when the steel pipe body 11 needs to be frequently disassembled and assembled, the combined pipe 26 is welded to the corresponding steel pipe body 11 in the same manner as the welding between the steel pipe bodies 11. Figure 2 As shown, the combined tube 26 and the steel tube body 11 are combined through the second connecting groove 27, the second connecting plate 28, the first connecting groove 12 and the first connecting plate 13, and connected by welding, so that the combined tube 26 and the steel tube body 11 can be connected. After the connection, the combined tube 26 and the steel tube body 11 on both sides can be connected through the first combined plate 21 and the second combined plate 22 on both sides in conjunction with the bolts 23. This connection method makes it more convenient for the steel tube bodies 11 on both sides to be disassembled and reinstalled later, thereby facilitating the frequent disassembly and installation of the steel tube body 11.

[0034] Working principle: When the two steel pipe bodies 11 are combined, the first connecting plate 13 on the left is inserted into the first connecting groove 12 on the right, and the first connecting plate 13 on the right is inserted into the first connecting groove 12 on the left. After the insertion is completed, the connection between the two steel pipe bodies 11 is welded by electric welding equipment. This method makes the area of ​​the welding part of the two steel pipe bodies 11 much larger than the welding area of ​​the two circular cross-sections during welding. By increasing the welding part, the stability of the welding connection of the steel pipe body 11 is achieved, and the probability of fracture at the welding part is reduced; when the steel pipe body 11 needs to be frequently disassembled and assembled, the combined pipe 26 is welded to the corresponding steel pipe body 11 The welding method is the same as the welding method between the steel pipe body 11. The combined pipe 26 and the steel pipe body 11 are combined through the second connecting groove 27, the second connecting plate 28, the first connecting groove 12 and the first connecting plate 13, and connected by welding. The combined pipe 26 and the steel pipe body 11 can be connected. After the connection, the combined pipe 26 and the steel pipe body 11 on both sides can be connected through the first combined plate 21 and the second combined plate 22 on both sides and the bolts 23. This connection method makes it more convenient for the steel pipe bodies 11 on both sides to be disassembled and reinstalled later, thereby facilitating the frequent disassembly and installation of the steel pipe body 11.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. 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.

[0036] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A steel pipe that is easy to splice, characterized in that: The invention comprises a steel pipe assembly (1), wherein the steel pipe assembly (1) comprises a steel pipe body (11), wherein the end surface of the steel pipe body (11) is provided with two first connection grooves (12), and two first connection plates (13) are formed between the two first connection grooves (12). The first connection grooves (12) and the first connection plates (13) are both arc-shaped, and the angles between the first connection grooves (12) and the first connection plates (13) are both ninety degrees. The left first connection plate (13) is inserted into the first connection groove (12), and the right first connection plate (13) is inserted into the left first connection groove (12). A connection assembly (2) is arranged between the two steel pipe bodies (11).

2. The steel pipe that is easy to splice according to claim 1, characterized in that: The connection assembly (2) comprises a first combined plate (21) and a second combined plate (22), and the first combined plate (21) and the second combined plate (22) are fixedly connected by bolts (23).

3. A steel pipe that is easy to splice according to claim 2, characterized in that: A combination pipe (26) is fixedly installed on the right side of the second combination plate (22); two second connection grooves (27) are provided on the end surface of the combination pipe (26); two second connection plates (28) are formed between the two second connection grooves (27); the second connection groove (27) has the same shape as the first connection groove (12); the second connection plate (28) has the same shape as the first connection plate (13); the left second connection plate (28) is plugged into the right first connection groove (12); and the right first connection plate (13) is plugged into the left second connection groove (27).

4. The steel pipe that is easy to splice according to claim 2, characterized in that: A combination pipe (26) is fixedly installed on the left side of the first combination plate (21); two second connection grooves (27) are provided inside the left combination pipe (26); two second connection plates (28) are formed between the two second connection grooves (27); the right second connection plate (28) is plugged into the left first connection groove (12); and the left first connection plate (13) is plugged into the right second connection groove (27).

5. The steel pipe that is easy to splice according to claim 2, characterized in that: The first combined plate (21) and the second combined plate (22) are both provided with holes in communication with the combined pipe (26), and the combined pipe (26) is in communication with the corresponding steel pipe body (11).

6. The steel pipe that is easy to splice according to claim 2, characterized in that: A plug (24) is fixedly installed on the right side of the first combined plate (21), and the plug (24) is connected to the combined pipe (26) through a hole inside the first combined plate (21). A sealing ring (25) is fixedly installed on the outside of the plug (24), and the plug (24) is plugged into the hole of the second combined plate (22) on the right side and the inside of the combined pipe (26) on the right side.

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