Bending-resistant wear-resistant steel pipe

Abstract

The utility model discloses an anti-bending wear-resistant steel pipe, which relates to the technical field of steel pipe transportation, and comprises a horizontal steel pipe, a first support ring, a second support ring, an inner connecting rod, an outer connecting rod and a middle ring, a threaded inner cylinder is fixedly arranged on the inner ring wall of the first support ring, and the threaded inner cylinder is movably inserted into an inner cavity of the horizontal steel pipe; triangular plates are fixedly arranged at the tops of the inner connecting rods at equal intervals, outer connecting rods are fixedly arranged at the tops of the triangular plates, and the two ends of the inner connecting rods and the two ends of the outer connecting rods are fixedly welded to the side faces of the first supporting ring and the second supporting ring correspondingly. The first supporting ring and the second supporting ring are sequentially and fixedly arranged at the two ends of a traditional horizontal steel pipe, the anti-bending structure composed of the inner connecting rod, the triangular plate and the outer connecting rod is arranged between the first supporting ring and the second supporting ring, the anti-bending performance of the whole steel pipe is further improved, and the diameter of the first supporting ring and the diameter of the second supporting ring are larger than the outer diameter of the horizontal steel pipe. The surface abrasion of the horizontal steel pipe bearing the fluid guiding function when the horizontal steel pipe is dragged on the ground or a rack is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe transportation, in particular to a bending-resistant and wear-resistant steel pipe. Background Art

[0002] Steel pipe is a hollow, long steel strip made by rolling or welding steel plates or strips. It is widely used in industries such as construction, machinery manufacturing, chemicals, and power generation. Its advantages include light weight, high strength, corrosion resistance, and high temperature resistance, making it a significant advantage in transporting liquids, gases, and solid materials. Steel pipe can be divided into two categories: seamless steel pipe and welded steel pipe, depending on the manufacturing process.

[0003] Most existing steel pipes have a simple tube structure, but this structure has poor torsional bending strength, which can easily lead to deformation during use and transportation. During transportation, steel pipes are prone to bending or twisting under external forces. During use, especially when subjected to lateral loads or torque, steel pipes may suffer permanent deformation, affecting their service life and safety. Furthermore, the single structure of steel pipes cannot effectively resist stress from multiple directions, resulting in poor performance in some special applications. Summary of the Invention

[0004] The purpose of the present utility model is to solve the problem that most of the steel pipes in the prior art are simple pipe structures, but this structure has poor torsional bending strength, which can easily lead to deformation during use and transportation: during transportation, the steel pipe is prone to bending or twisting under the action of external forces; in use, especially when subjected to lateral loads or torque, the steel pipe may produce permanent deformation, affecting its service life and safety. The structure of the steel pipe is single and cannot effectively resist stress from multiple directions, resulting in poor performance in some special application scenarios. A bending-resistant and wear-resistant steel pipe is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A bending-resistant and wear-resistant steel pipe comprises a horizontal steel pipe, a first support ring, a second support ring, an inner connecting rod, an outer connecting rod, and an intermediate ring. A threaded inner cylinder is fixedly provided on the inner ring wall of the first support ring, and the threaded inner cylinder is movably inserted into the inner cavity of the horizontal steel pipe. A triangular plate is fixedly provided at equal intervals on the top of the inner connecting rod, and an outer connecting rod is fixedly provided on the top of the triangular plate. The two ends of the inner connecting rod and the two ends of the outer connecting rod are respectively fixedly welded to the sides of the first support ring and the second support ring. An intermediate pulling assembly for fixing the external connecting rod and the intermediate ring is provided in the middle position of the outer wall of multiple groups of the external connecting rods.

[0007] Optionally, a threaded outer cylinder is fixedly provided on the side surface of the second support ring, and the outer diameter of the threaded outer cylinder is equal to the inner diameter of the threaded inner cylinder.

[0008] Optionally, the intermediate lifting assembly includes a docking fork, an adjusting bolt, and a fixing ring. The fixing ring is arranged in a circular array on the side of the intermediate ring, and the adjusting bolt is screwed into the top of the docking fork.

[0009] Optionally, an annular groove is provided on the outer wall of the threaded outer cylinder close to one end of the second support ring, and a sealing ring is sleeved on the outer wall of the annular groove.

[0010] Optionally, the tail of the adjusting bolt is threaded onto a fixing ring, the fixing ring extends into the docking groove, the docking groove is as wide as the fixing ring, and an insertion groove is provided at the bottom of the side of the docking fork.

[0011] Optionally, the outer connecting rod and the inner connecting rod have the same width as the insertion slot, and the sides of the outer connecting rod and the inner connecting rod are fixedly connected to the sides of the insertion slot by bolts.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. The utility model fixes a first support ring and a second support ring at both ends of a traditional horizontal steel pipe in sequence, and an anti-bending structure consisting of an inner connecting rod, a triangular plate, and an outer connecting rod is provided between the first support ring and the second support ring, thereby further improving the bending resistance of the entire steel pipe. In addition, the diameters of the first support ring and the second support ring are larger than the outer diameter of the horizontal steel pipe, thereby preventing the surface of the horizontal steel pipe, which has the function of guiding fluid, from being worn when being dragged on the ground or on a rack.

[0014] 2. The utility model is provided with an intermediate ring in the middle position of the anti-bending structure composed of the inner connecting rod, the triangular plate and the outer connecting rod, and the circular array on the side of the intermediate ring has an intermediate pulling component. The intermediate pulling component can fix the intermediate ring in the middle of the anti-bending structure, especially when the length of the entire horizontal steel pipe is long, thereby improving the bending resistance of the entire horizontal steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 for Figure 1 Another perspective structural diagram.

[0017] Figure 3 Schematic diagram of the connection structure between the middle pulling component and the middle ring.

[0018] Figure 4 Schematic diagram of the structure of the intermediate pulling component.

[0019] In the figure: 1. Threaded inner cylinder; 2. First support ring; 21. Horizontal steel pipe; 3. Second support ring; 31. Annular groove; 4. Sealing ring; 5. Threaded outer cylinder; 6. Inner connecting rod; 7. Outer connecting rod; 8. Triangular plate; 9. Fixed ring; 10. Intermediate ring; 11. Adjusting bolt; 12. Docking groove; 13. Docking fork; 14. Insertion groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] Reference Figure 1-4 A bending-resistant and wear-resistant steel pipe includes a horizontal steel pipe 21, a first support ring 2, a second support ring 3, an inner connecting rod 6, an outer connecting rod 7, and an intermediate ring 10. A threaded inner cylinder 1 is fixedly provided on the inner ring wall of the first support ring 2, and the threaded inner cylinder 1 is movably inserted into the inner cavity of the horizontal steel pipe 21. A triangular plate 8 is fixedly provided at an equidistant distance on the top of the inner connecting rod 6, and an outer connecting rod 7 is fixed on the top of the triangular plate 8. The triangular plate 8 improves the connection strength and bending resistance between the inner connecting rod 6 and the outer connecting rod 7.

[0023] The two ends of the inner connecting rod 6 and the two ends of the outer connecting rod 7 are fixedly welded to the sides of the first support ring 2 and the second support ring 3 respectively. An intermediate pulling assembly is provided in the middle position of the outer wall of multiple groups of external connecting rods 7 to fix the external connecting rods 7 and the intermediate ring 10. A threaded outer cylinder 5 is fixedly provided on the side of the second support ring 3. The outer diameter of the threaded outer cylinder 5 is equal to the inner diameter of the threaded inner cylinder 1. The threaded outer cylinder 5 and the threaded inner cylinder 1 are used for splicing multiple sections of horizontal steel pipes 21.

[0024] The intermediate pulling assembly includes a docking fork 13, an adjusting bolt 11, and a fixing ring 9. The fixing ring 9 is arranged in a circular array on the side of the intermediate ring 10. The adjusting bolt 11 is screwed into the top of the docking fork 13. The outer wall of the threaded outer tube 5 near one end of the second support ring 3 is provided with an annular groove 31. The outer wall of the annular groove 31 is provided with a sealing ring 4. The tail end of the adjusting bolt 11 is screwed into the fixing ring 9, and the fixing ring 9 extends into the docking groove 12.

[0025] The docking groove 12 is as wide as the fixing ring 9, and an insertion groove 14 is provided at the bottom of the side of the docking fork 13. The outer connecting rod 7 and the inner connecting rod 6 are as wide as the insertion groove 14, and the sides of the outer connecting rod 7 and the inner connecting rod 6 are fixedly connected to the sides of the insertion groove 14 with bolts.

[0026] It should be supplemented that the inner ring diameter of the intermediate ring 10 is larger than the inner diameters of the first support ring 2 and the second support ring 3 .

[0027] The specific implementation steps and principles of this utility model are as follows:

[0028] When multiple horizontal steel pipes 21 need to be spliced, the threaded outer tube 5 at the end of one horizontal steel pipe 21 is screwed into the threaded inner tube 1 of another horizontal steel pipe 21 until the sealing ring 4 inside the annular groove 31 is squeezed and deformed. When the intermediate ring 10 needs to be fixed in the middle position of a single horizontal steel pipe 21, the fixing ring 9 of the multiple intermediate rings 10 is inserted into the docking groove 12, and then the multiple adjustment bolts 11 are screwed into the fixing ring 9, thereby fixing the intermediate ring 10 on the docking fork 13.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bending-resistant and wear-resistant steel pipe, comprising a horizontal steel pipe (21), a first support ring (2), a second support ring (3), an inner connecting rod (6), an outer connecting rod (7), and an intermediate ring (10), characterized in that: A threaded inner tube (1) is fixedly provided on the inner ring wall of the first support ring (2), and the threaded inner tube (1) is movably inserted into the inner cavity of the horizontal steel pipe (21). A triangular plate (8) is fixedly provided at an equal distance on the top of the inner connecting rod (6), and an outer connecting rod (7) is fixedly provided on the top of the triangular plate (8). The two ends of the inner connecting rod (6) and the two ends of the outer connecting rod (7) are respectively fixedly welded to the side surfaces of the first support ring (2) and the second support ring (3). An intermediate lifting assembly for fixing the outer connecting rod (7) and the intermediate ring (10) is provided in the middle position of the outer wall of multiple groups of the outer connecting rods (7).

2. The anti-bending and wear-resistant steel pipe according to claim 1, characterized in that: A threaded outer cylinder (5) is fixedly provided on the side surface of the second support ring (3), and the outer diameter of the threaded outer cylinder (5) is equal to the inner diameter of the threaded inner cylinder (1).

3. The anti-bending and wear-resistant steel pipe according to claim 1, characterized in that: The intermediate lifting assembly includes a docking fork (13), an adjusting bolt (11), and a fixing ring (9). The fixing ring (9) is arranged in a circular array on the side of the intermediate ring (10). The adjusting bolt (11) is screwed into the top of the docking fork (13).

4. The anti-bending and wear-resistant steel pipe according to claim 2, characterized in that: An annular groove (31) is provided on the outer wall of one end of the threaded outer cylinder (5) close to the second support ring (3), and a sealing ring (4) is sleeved on the outer wall of the annular groove (31).

5. The anti-bending and wear-resistant steel pipe according to claim 3, characterized in that: The tail end of the adjusting bolt (11) is screwed onto the fixing ring (9), and the fixing ring (9) extends into the interior of the docking groove (12). The docking groove (12) is as wide as the fixing ring (9), and an insertion groove (14) is provided at the bottom of the side of the docking fork (13).

6. The anti-bending and wear-resistant steel pipe according to claim 5, characterized in that: The outer connecting rod (7) and the inner connecting rod (6) have the same width as the insertion slot (14), and the sides of the outer connecting rod (7) and the inner connecting rod (6) are fixedly connected to the sides of the insertion slot (14) by bolts.

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