High-strength galvanized steel pipe

Abstract

The utility model discloses a high-strength galvanized steel pipe. The high-strength galvanized steel pipe comprises a pipe main body, a reinforcing layer and a composite coating, the pipe body is arranged, the reinforcing layer is connected to the inner side of the pipe body, the reinforcing layer comprises the supporting layer, the reinforcing cavity, the reinforcing ribs and the like, the inner side of the pipe body can be reinforced under mutual cooperation, and the overall strength of the pipe body is improved, the composite coating is arranged on the outer side of the pipe body, and the composite coating comprises the bottom layer, the middle layer, the top layer and the like. The pipe body can be mutually protected, the chemical resistance of the pipe body is improved, damage is reduced, the service life of the pipe body is prolonged, the overall functions are diversified, use is safer and more reliable, and high practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipes, in particular to a high-strength galvanized steel pipe. Background Art

[0002] ‌Steel pipe is a type of steel with a hollow section whose length is much greater than its diameter or circumference.

[0003] Some existing galvanized steel pipes have low strength and are prone to deformation and bending when subjected to external forces, affecting their normal use. They are also relatively poorly resistant to harsh and humid environments. After long-term use, they may corrode, affecting their service life and having certain limitations. Utility Model Content

[0004] The purpose of the utility model is to provide a high-strength galvanized steel pipe to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a high-strength galvanized steel pipe, comprising a pipe body, wherein the inner side of the pipe body is provided with a reinforcement layer, and the outer side is connected with a composite coating;

[0006] At least two groups of cavities are provided at equal intervals on the inner end of the tube body, and support frames are provided in each of the cavities.

[0007] Preferably, the reinforcement layer includes a support layer, a reinforcement cavity and reinforcement ribs. The support layer is provided on the inner side of the pipe body. A reinforcement cavity is provided between the support layer and the inner side of the pipe body. Reinforcement ribs are provided in the reinforcement cavity.

[0008] Preferably, the composite coating includes a bottom layer, a middle layer and a top layer. The bottom layer is provided on the outside of the tube body, the middle layer is provided on the outside of the bottom layer, and the top layer is provided on the outside of the middle layer.

[0009] Preferably, the reinforcing rib is spirally arranged in the reinforcing cavity.

[0010] Preferably, the support frame is triangular in shape.

[0011] Preferably, the bottom layer is a galvanized layer.

[0012] Preferably, the middle layer is a Zn-Al-Mg alloy coating.

[0013] Preferably, the top layer is a ceramic coating.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] A pipe body is provided, and a reinforcement layer is connected to the inner side of the pipe body. The reinforcement layer includes components such as a support layer, a reinforcement cavity and reinforcement ribs. By cooperating with each other, the inner side of the pipe body can be strengthened to improve its overall strength. A composite coating is provided on the outer side of the pipe body. The composite coating includes components such as a bottom layer, a middle layer and a top layer. The composite coating includes components such as a bottom layer, a middle layer and a top layer. The composite coating can protect the pipe body, improve the chemical resistance of the pipe body, reduce the damage suffered, and extend its service life. The overall function is relatively diverse, it is safer and more reliable when used, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the pipe body of the utility model;

[0018] Figure 3 This is a schematic diagram of the local structure of the reinforcement layer of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the pipe body and the composite coating of the utility model.

[0020] In the figure: pipe body-1, reinforcement layer-2, composite coating-3, cavity-11, support frame-12, support layer-21, reinforcement cavity-22, reinforcement rib-23, bottom layer-31, middle layer-32, top layer-33. DETAILED DESCRIPTION

[0021] In order to further explain the technical solution of the present invention, specific embodiments are described in detail below.

[0022] See also Figure 1 The utility model provides a high-strength galvanized steel pipe, including a pipe body 1. The pipe body 1 is a micro-alloyed steel material processed by controlled rolling and heat treatment technology, with the addition of trace elements such as vanadium (V), niobium (Nb), and titanium (Ti) and refined grains, which effectively improves strength and toughness. A reinforcing layer 2 for improving strength is provided on the inner side of the pipe body 1, and a composite coating 3 for protection is connected to the outer side.

[0023] See also Figure 4 The utility model provides a high-strength galvanized steel pipe. The inner end of the pipe body 1 is provided with no less than two groups of cavities 11 at equal intervals to achieve weight reduction of the pipe body 1. Triangular support frames 12 are provided in the cavities 11 to avoid the strength reduction of the pipe body 1, enhance the stability of use, and facilitate adapting to different usage requirements.

[0024] See also Figure 2-3The utility model provides a high-strength galvanized steel pipe, the reinforcement layer 2 includes a support layer 21, a reinforcement cavity 22 and a reinforcement rib 23. The support layer 21 is provided on the inner side of the pipe body 1, and a reinforcement cavity 22 is provided between the support layer 21 and the inner side of the pipe body 1. The reinforcement rib 23 is provided in the reinforcement cavity 22, wherein the reinforcement rib 23 is spirally arranged in the reinforcement cavity 22 and can contact the support layer 21 and the pipe body 1, which can strengthen the support of the pipe body 1, enhance the bending resistance and improve the structural stability.

[0025] See also Figure 4 The present invention provides a high-strength galvanized steel pipe. The composite coating 3 includes a bottom layer 31, a middle layer 32, and a top layer 33. The bottom layer 31 is provided on the outside of the pipe body 1. The bottom layer 31 is a galvanized layer. A uniform high-purity zinc coating is used to provide basic corrosion protection for the pipe body 1.

[0026] A middle layer 32 is provided on the outer side of the bottom layer 31. The middle layer 32 is a Zn-Al-Mg alloy coating containing 3-6% aluminum and 1-2% magnesium, which effectively improves corrosion resistance, especially in humid and salt spray environments, and can improve the stability of the extension tube body 1 in the corresponding environment.

[0027] A top layer 33 is provided on the outside of the middle layer 32. The top layer 33 is a ceramic coating with good wear resistance and anti-fouling effect, thereby extending its service life.

[0028] Here's how it works:

[0029] When in use, the steel pipe can be supported and strengthened by the support layer 21 and the reinforcing ribs 23 to enhance the bending resistance and improve the installation stability. The mutual cooperation between the bottom layer 31, the middle layer 32 and the top layer 33 can improve the corrosion resistance and service life of the steel pipe, which can adapt to different usage requirements and usage environments.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-strength galvanized steel pipe, characterized by: It comprises a pipe body (1), wherein the inner side of the pipe body (1) is provided with a reinforcement layer (2), and the outer side is connected with a composite coating layer (3); The inner end of the tube body (1) is provided with at least two groups of cavities (11) at equal intervals, and each of the cavities (11) is provided with a support frame (12).

2. The high-strength galvanized steel pipe according to claim 1, characterized in that: The reinforcing layer (2) comprises a supporting layer (21), a reinforcing cavity (22) and reinforcing ribs (23); the supporting layer (21) is provided on the inner side of the pipe body (1); a reinforcing cavity (22) is provided between the supporting layer (21) and the inner side of the pipe body (1); and a reinforcing rib (23) is provided in the reinforcing cavity (22).

3. The high-strength galvanized steel pipe according to claim 1, characterized in that: The composite coating (3) comprises a bottom layer (31), a middle layer (32) and a top layer (33); the bottom layer (31) is provided on the outside of the tube body (1); the middle layer (32) is provided on the outside of the bottom layer (31); and the top layer (33) is provided on the outside of the middle layer (32).

4. The high-strength galvanized steel pipe according to claim 2, characterized in that: The reinforcing rib (23) is spirally arranged in the reinforcing cavity (22).

5. The high-strength galvanized steel pipe according to claim 1, characterized in that: The support frame (12) is in a triangular shape.

6. The high-strength galvanized steel pipe according to claim 3, characterized in that: The bottom layer (31) is a galvanized layer.

7. The high-strength galvanized steel pipe according to claim 3, characterized in that: The middle layer (32) is a Zn-Al-Mg alloy coating.

8. The high-strength galvanized steel pipe according to claim 3, characterized in that: The top layer (33) is a ceramic coating.

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