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High-strength specially-shaped welding-free pipe

A high-strength, special-shaped technology, applied in the direction of building types, fences, roads, etc., can solve the problems of poor stability of the rectangular cavity structure, low production efficiency, distortion and deformation, etc., to prevent distortion or fracture, and high production efficiency , the effect of increasing strength

Inactive Publication Date: 2016-08-03
HUBEI MEILI PROTECTING FACILITY TECH
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  • Application Information

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Problems solved by technology

Its disadvantages are: first, the stability of the rectangular cavity structure is not good; second, the strength is not high, and the stress is concentrated at the U-shaped occlusion, which is easy to cause distortion or fracture; third, the product needs to be corrected after molding, and the production low efficiency

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  • High-strength specially-shaped welding-free pipe
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  • High-strength specially-shaped welding-free pipe

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Embodiment Construction

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the protection scope of the present invention.

[0025] Such as Figure 1~Figure 6 Among them, the high-strength special-shaped welding-free pipe material, the pipe material 1 includes a closed surface 2, a corresponding surface 3, a tension surface 4, 4', and the tension surface 4, 4' is connected to the closed surface 2 and the corresponding surface 3 respectively to form a hollow cavity Body, the stability of the structure of the present invention is good.

[0026] Such as figure 1 , figure 2 Among them, the sealing surface 2 is provided with at least one boss 27 and a displacement limiting section 23 inside the cavity; the boss 27 is formed by the first U-shaped mouth 21 and the second U-shaped mouth 22, and the indent...

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Abstract

The invention provides a high-strength specially-shaped welding-free pipe. The pipe comprises a closing face, a corresponding face and tension faces. Each of the tension faces is connected with the closing face and the corresponding face, so that a hollow cavity is formed. A displacement limiting section is arranged on a boss on the closing face, so that the structural stability is facilitated; the closing face and the corresponding face are planes or groove-shaped faces, so that the structural strength is better improved; tension grooves with reinforcing ribs are arranged, so that the strength of a section structure is improved, the stress of the position of the boss of the closing face is dispersed, and the situation that the specially-shaped pipe is twisted, deformed or broken after being stressed is prevented; and the closing face is provided with the boss of an engagement structure, so that no welding is needed. The high-strength specially-shaped welding-free pipe has the beneficial effects of being stable in structure, high in strength, free of welding, free of correction after being formed and high in production efficiency.

Description

technical field [0001] The invention belongs to the field of building profiles, in particular to a special-shaped pipe suitable for guardrails. Background technique [0002] Chinese patent document CN203475698U, publication / announcement date: March 12, 2014, discloses a rectangular metal profile with a U-shaped occlusal opening formed at one time. It includes a rectangular main body that is formed by cold-bending a color steel coated plate or a galvanized iron plate. The cross-section of the joint is a U-shaped joint with two U-shaped joints that fit each other. The inside of the U-shaped joint is set to strengthen the joint strength of the profile. Shaped mechanical cold indentation. Its structural feature is that no welding is required. Its disadvantages are: first, the stability of the rectangular cavity structure is not good; second, the strength is not high, and the stress is concentrated at the U-shaped occlusion, which is easy to cause distortion or fracture; third,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01F15/04E04F11/18E04H17/14
CPCE01F15/0423E04F11/181E04H17/14
Inventor 王利民
Owner HUBEI MEILI PROTECTING FACILITY TECH
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