High-strength special-shaped steel pipe

Abstract

The utility model discloses a high-strength special-shaped steel pipe, which relates to the technical field of special-shaped steel pipes and comprises a left half pipe and a right half pipe, the left half pipe and the right half pipe are welded and connected, the left half pipe and the right half pipe are made of the same materials and are arranged in a mirror image manner, and a plurality of groups of locking hoops are welded on the outer walls of the left half pipe and the right half pipe. According to the high-strength special-shaped steel pipe, due to the fact that the high-strength special-shaped steel pipe is formed by welding the left half pipe and the right half pipe, the mode of double-face simultaneous welding or multi-person simultaneous welding can be adopted for symmetrical welding, and therefore a complex special-shaped steel pipe structure can be conveniently machined, and production efficiency can be remarkably improved.

Description

Technical Field

[0001] This utility model relates to the technical field of special-shaped steel pipes, and in particular to a high-strength special-shaped steel pipe. Background Technology

[0002] Shaped pipes are a general term for steel pipes with cross-sectional shapes other than circular pipes. According to the different dimensions of the steel pipe cross-section, they can be further divided into shaped pipes with equal wall thickness, shaped pipes with unequal wall thickness, and shaped pipes with varying diameters.

[0003] Patent "CN202022954016.X" discloses a square steel pipe comprising a steel pipe body, the steel pipe body being a square hollow tube with rounded corners. Multiple raised crescent-shaped textures are machined on the outer surface of the front end of the steel pipe body, all facing the same square direction. Multiple raised protective blocks are machined on the inner surface of the rear end of the steel pipe body. The inner and outer surfaces of the upper and lower ends of the steel pipe body are smooth. Reinforcing ribs are welded to the outer surfaces of both the upper and lower ends of the steel pipe body, and these reinforcing ribs are arranged longitudinally along the steel pipe body. However, in the production of office chairs, it is necessary to bend irregularly shaped steel pipes. Existing irregularly shaped steel pipes have equal thickness on each side, which is not conducive to forming and processing. Utility Model Content

[0004] The purpose of this utility model is to provide a high-strength special-shaped steel pipe in order to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: it includes a left half-pipe and a right half-pipe, which are welded together. The left half-pipe and the right half-pipe are made of the same material and are mirror images of each other. Multiple sets of locking clamps are welded to the outer walls of the left half-pipe and the right half-pipe.

[0006] The right half of the pipe includes an outer pipe, and reinforcing ribs are fixedly provided at both ends of the outer pipe, and a connecting plate is fixedly provided between the two reinforcing ribs. In practical applications, since the high-strength special-shaped steel pipe is welded from the left half of the pipe and the right half of the pipe, symmetrical welding can be carried out by welding on both sides at the same time or by multiple people welding at the same time, which facilitates the processing of complex special-shaped steel pipe structures and can significantly improve production efficiency.

[0007] Simultaneously, symmetrical welding ensures uniform weld distribution, allowing for more even stress transmission and distribution under external forces. This avoids stress concentration, improves the structure's load-bearing capacity and stability, and reduces deformation.

[0008] During the welding process, the shrinkage of the weld can cause the steel pipe to deform. When welding symmetrically, the shrinkage forces of the weld cancel each other out, which can effectively reduce welding deformation and ensure the dimensional accuracy and shape requirements of the steel pipe.

[0009] Furthermore, the outer pipe has a C-shaped cross-section, with an arc-shaped middle section that is thinner than its ends. In practical applications, because the middle section is thinner than the ends, the thinner portion is easier to bend and weld during production, while the thicker portion provides the necessary strength and stability for the structure. For example, when manufacturing complex metal structures, first shaping the thinner portion and then assembling and welding it with the thicker portion can reduce processing difficulty and improve production efficiency.

[0010] Furthermore, the connecting plate has an arc-shaped cross-section, and the two connecting plates are arranged in a mirror image. The connecting plate is made of an elastic metal material. In practical applications, the connecting plate increases the strength of the shaped steel pipe and reduces the bending of the shaped steel pipe during daily use.

[0011] Furthermore, the outer pipe is divided into a base layer, rust-proof layers on both sides of the base layer, and an outermost wear-resistant layer.

[0012] Furthermore, the locking clamp fits tightly against the outer walls of the left and right halves of the pipe; in practical applications, the locking clamp further secures the left and right halves of the pipe together, preventing them from cracking.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This is a high-strength special-shaped steel pipe. Since the high-strength special-shaped steel pipe is made by welding the left half and the right half, the symmetrical welding can be done by welding both sides at the same time or by multiple people welding at the same time, which makes it convenient to process complex special-shaped steel pipe structures and can significantly improve production efficiency.

[0015] Because the middle section of the outer tube is thinner than its ends, the thinner-walled portion is easier to bend and weld during production, while the thicker-walled portion provides the necessary strength and stability for the structure. For example, when manufacturing complex-shaped metal structures, the thinner-walled portion can be shaped first and then assembled and welded with the thicker-walled portion, reducing processing difficulty and improving production efficiency. Attached Figure Description

[0016] Figure 1 This is an external view of a high-strength special-shaped steel pipe proposed in this utility model;

[0017] Figure 2 This is a top view of a high-strength special-shaped steel pipe proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of a locking clamp structure for a high-strength special-shaped steel pipe proposed in this utility model;

[0019] Figure 4This is a schematic diagram of the outer connecting pipe of a high-strength special-shaped steel pipe proposed in this utility model.

[0020] In the diagram: 1. Right half of the pipe; 101. Outer pipe; 1011. Base layer; 1012. Wear-resistant layer; 1013. Rust-proof layer; 102. Reinforcing rib; 103. Connecting plate; 2. Left half of the pipe; 3. Locking clamp. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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.

[0023] Reference Figure 1-4 A high-strength special-shaped steel pipe includes a left half pipe 2 and a right half pipe 1, which are welded together. The left half pipe 2 and the right half pipe 1 are made of the same material and are mirror images of each other. Multiple sets of locking hoops 3 are welded to the outer walls of the left half pipe 2 and the right half pipe 1.

[0024] The right half-pipe 1 includes an outer pipe 101, with reinforcing ribs 102 fixedly installed at both ends of the outer pipe 101, and a connecting plate 103 fixedly installed between the two reinforcing ribs 102. In practical applications, since the high-strength special-shaped steel pipe is welded from the left half-pipe 2 and the right half-pipe 1, symmetrical welding can be carried out by welding on both sides simultaneously or by multiple people welding simultaneously, which facilitates the processing of complex special-shaped steel pipe structures and can significantly improve production efficiency.

[0025] Simultaneously, symmetrical welding ensures uniform weld distribution, allowing for more even stress transmission and distribution under external forces. This avoids stress concentration, improves the structure's load-bearing capacity and stability, and reduces deformation.

[0026] During the welding process, the shrinkage of the weld can cause the steel pipe to deform. When welding symmetrically, the shrinkage forces of the weld cancel each other out, which can effectively reduce welding deformation and ensure the dimensional accuracy and shape requirements of the steel pipe.

[0027] Furthermore, refer to Figure 2The outer tube 101 has a U-shaped cross-section, with an arc-shaped middle section that is thinner than its ends. In practical applications, because the middle section of the outer tube 101 is thinner than its ends, the thinner-walled portion is easier to bend and weld during production, while the thicker-walled portion provides the necessary strength and stability for the structure. For example, when manufacturing complex-shaped metal structures, first shaping the thinner-walled portion and then assembling and welding it with the thicker-walled portion can reduce processing difficulty and improve production efficiency.

[0028] Furthermore, refer to Figure 2 The connecting plate 103 has an arc-shaped cross section, and the two connecting plates 103 are set in a mirror image. The connecting plate 103 is made of a flexible metal material. In practical applications, the connecting plate 103 increases the strength of the special-shaped steel pipe and reduces the bending of the special-shaped steel pipe during daily use.

[0029] Furthermore, refer to Figure 4 The outer pipe 101 is divided into a base layer 1011, anti-rust layers 1013 on both sides of the base layer 1011, and an outermost wear-resistant layer 1012.

[0030] Furthermore, refer to Figure 3 The locking clamp 3 fits tightly against the outer wall of the left half pipe 2 and the right half pipe 1. In practical applications, the locking clamp 3 further fixes the left half pipe 2 and the right half pipe 1 together to prevent them from cracking.

[0031] Working principle: Since the high-strength special-shaped steel pipe is welded from the left half pipe 2 and the right half pipe 1, symmetrical welding can be carried out by welding both sides simultaneously or by multiple people simultaneously, which facilitates the processing of complex special-shaped steel pipe structures and can significantly improve production efficiency. At the same time, symmetrical welding can make the weld seam evenly distributed. When subjected to external force, the stress can be transmitted and distributed more evenly, avoiding stress concentration, improving the load-bearing capacity and stability of the structure, and reducing deformation. During the welding process, the shrinkage of the weld seam will cause the steel pipe to deform. When symmetrically welded, the shrinkage force of the weld seam cancels each other out, which can effectively reduce welding deformation and ensure the dimensional accuracy and shape requirements of the steel pipe.

[0032] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A high-strength special-shaped steel pipe, characterized in that, It includes a left half-pipe (2) and a right half-pipe (1), which are welded together. The left half-pipe (2) and the right half-pipe (1) are made of the same material and are mirror images of each other. Multiple sets of locking clamps (3) are welded to the outer walls of the left half-pipe (2) and the right half-pipe (1). The right half pipe (1) includes an outer pipe (101), and reinforcing ribs (102) are fixedly provided at both ends of the outer pipe (101), and a connecting plate (103) is fixedly provided between the two reinforcing ribs (102).

2. The high-strength special-shaped steel pipe according to claim 1, characterized in that, The cross-section of the outer pipe (101) is U-shaped, and the middle position of the outer pipe (101) is arc-shaped. The middle position of the outer pipe (101) is thinner than the two ends of the outer pipe (101).

3. A high-strength special-shaped steel pipe according to claim 2, characterized in that, The connecting plate (103) has an arc-shaped cross section, and the two connecting plates (103) are arranged in a mirror image. The connecting plate (103) is made of a flexible metal material.

4. A high-strength special-shaped steel pipe according to claim 1, characterized in that, The outer pipe (101) is divided into a base layer (1011), rust-proof layers (1013) on both sides of the base layer (1011), and an outermost wear-resistant layer (1012).

5. A high-strength special-shaped steel pipe according to claim 1, characterized in that, The locking clamp (3) fits tightly against the outer walls of the left half-pipe (2) and the right half-pipe (1).

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