High-corrosion-resistance zinc-aluminum-magnesium coating pipe

Abstract

The utility model discloses a high-corrosion-resistance zinc-aluminum-magnesium coating pipe, and relates to the technical field of corrosion-resistant pipes. The high-corrosion-resistance zinc-aluminum-magnesium coating pipe comprises a pipe body, the surface of the pipe body is coated with a zinc-aluminum-magnesium coating, the side edge of the outer surface of the pipe body is provided with a connecting face, the connecting face and the side edge of the pipe body are not coated with the zinc-aluminum-magnesium coating, a rubber ring is attached to the surface of the connecting face, one side of the rubber ring is connected with a rubber sheet, and the rubber sheet is annular. Before welding, the rubber sheet and the rubber ring are taken down, the connecting face is exposed, due to the fact that the connecting face and the side edge of the pipe body are not coated with the zinc-aluminum-magnesium coating, the connecting face and the side edge of the pipe body are not affected by the zinc-aluminum-magnesium coating when one end of the pipeline is welded, and the defects of air holes, layering and the like of a weld joint are effectively overcome; the surface of the welded pipe body is regular, and no redundant structure is left on the pipe body, so that the surface of the welded pipe body is attractive.

Description

Technical Field

[0001] The utility model relates to the technical field of corrosion-resistant pipes, in particular to a high-corrosion-resistant zinc-aluminum-magnesium coating pipe. Background Art

[0002] Zinc-aluminum-magnesium coated pipes can be used for building frames, support columns, such as keel ceilings, porous panels, cable trays, mechanical parts, conveying pipelines, etc. They can also be used for supporting frames of photovoltaic panels. When used in photovoltaic panels, the coating on the surface of zinc-aluminum-magnesium coated pipes can improve their durability, bending resistance, seismic resistance and strength.

[0003] The existing zinc-aluminum-magnesium coated pipe is connected to other pipes by a sliding sleeve arranged on the pipe, so as to facilitate welding operations with other pipes. For example, Chinese patent application No. CN202221559855.4 discloses a pipe with a highly corrosion-resistant zinc-aluminum-magnesium coating, including a pipe body, wherein the pipe body is provided with a through hole along its own axial direction, and the surfaces of the pipe body and the through hole are both provided with a zinc-aluminum-magnesium coating.

[0004] When zinc-aluminum-magnesium coated pipes are used to support photovoltaic panels, the size of the zinc-aluminum-magnesium coated pipes is usually set according to the size of the photovoltaic panels. The process usually requires cutting, welding and other operations. Since the surface of the pipe is coated with zinc-aluminum-magnesium, the zinc-aluminum-magnesium coating is easy to affect the welding effect when one end of the pipe is welded to other structures. For example, a large amount of gas is generated during the welding process, which leads to defects in the weld, such as pores, delamination, cracks, etc. Utility Model Content

[0005] Technical issues solved

[0006] In view of the deficiencies in the prior art, the utility model provides a high corrosion-resistant zinc-aluminum-magnesium coated pipe, which solves the problem that the pipe surface coating affects the welding effect.

[0007] Technical Solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a highly corrosion-resistant zinc-aluminum-magnesium coated pipe, comprising a pipe body, the surface of the pipe body is coated with a zinc-aluminum-magnesium coating, a connecting surface is provided on the side of the outer surface of the pipe body, the connecting surface and the side of the pipe body are not coated with the zinc-aluminum-magnesium coating, a rubber ring is bonded to the surface of the connecting surface, a rubber sheet is connected to one side of the rubber ring, the rubber sheet is annular, and the inner side of the rubber sheet extends into the interior of the pipe body and is bonded to the inner wall of the pipe body.

[0009] Preferably, a sealing ring is connected to a side of the rubber ring away from the rubber sheet, and the sealing ring extends in a direction away from the rubber ring.

[0010] Preferably, a cable tie is provided on the outer surface of the sealing ring.

[0011] Preferably, a notch is formed on the side of the sealing ring away from the rubber ring.

[0012] Preferably, the sealing ring is symmetrically connected to one side away from the rubber ring with two extension pieces, and the two extension pieces are respectively located at two sides of the notch.

[0013] Preferably, the cable tie is made of nylon-66.

[0014] Preferably, a plurality of fixing strips are connected to the outer side of the rubber ring, and one end of the fixing strip extends toward the rubber sheet and is connected to the rubber sheet.

[0015] Beneficial Effects

[0016] The utility model provides a high corrosion-resistant zinc-aluminum-magnesium coating pipe. It has the following beneficial effects:

[0017] By setting up the connecting surface, rubber ring and other structures, the rubber sheet and rubber ring are removed before welding to expose the connecting surface. Since the connecting surface and the side of the pipe body are not coated with the zinc-aluminum-magnesium coating, the zinc-aluminum-magnesium coating will not affect the welding at one end of the pipe, effectively preventing defects such as pores and delamination in the weld. At the same time, since the rubber sheet and rubber ring have been removed, the surface of the pipe body after welding is relatively regular, and there is no redundant structure left on the pipe body, making the surface of the pipe body after welding more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the tube body of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection surface structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the rubber sheet of the utility model.

[0022] In the figure: 1. tube body; 2. connecting surface; 3. rubber ring; 4. rubber sheet; 5. sealing ring; 6. cable tie; 7. notch; 8. extension piece; 9. fixing strip. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4The utility model provides a technical solution: a high corrosion-resistant zinc-aluminum-magnesium coated pipe, comprising a pipe body 1, the surface of the pipe body 1 is coated with a zinc-aluminum-magnesium coating, a connecting surface 2 is provided on the side of the outer surface of the pipe body 1, the connecting surface 2 and the side of the pipe body 1 are not coated with the zinc-aluminum-magnesium coating, a rubber ring 3 is attached to the surface of the connecting surface 2, and a rubber sheet 4 is connected to one side of the rubber ring 3, the rubber sheet 4 is annular, the inner side of the rubber sheet 4 extends to the inside of the pipe body 1 and is attached to the inner wall of the pipe body 1, the rubber ring 3 is tightly attached to the connecting surface 2, and the rubber ring 3 is not easy to fall off from the connecting surface 2 without external force, the zinc-aluminum-magnesium coating is generally composed of 85% to 95% zinc, 3.5% to 5.5% aluminum, 1.5% to 3% magnesium, 0.1% to 0.4 iron, and less than 0.05% silicon. The formula of the zinc-aluminum-magnesium coating is the existing technology and will not be repeated here. If there is a welding requirement at both ends of the pipe body 1, a connecting surface 2, a rubber ring 3 and other structures are set on both sides of the pipe body 1, and the connecting surface 2 is annular.

[0025] During operation, the rubber ring 3 and the rubber sheet 4 are removed to expose the connecting surface 2 and the side of the tube body 1. Since the connecting surface 2 and the side of the tube body 1 are not coated with the zinc-aluminum-magnesium coating, when the side of the tube body 1 is subsequently welded to other parts, the weld is not prone to defects such as pores and delamination, which is beneficial to the welding operation of the tube body 1 and other parts.

[0026] See also Figure 1-4 The utility model provides a technical solution: a sealing ring 5 is connected to the side of the rubber ring 3 away from the rubber sheet 4, and the sealing ring 5 extends in a direction away from the rubber ring 3, and the sealing ring 5 is made of rubber.

[0027] During operation, the sealing ring 5 can protect the joint between the connection surface 2 and the zinc-aluminum-magnesium coating, thereby improving the sealing performance of the joint between the connection surface 2 and the zinc-aluminum-magnesium coating.

[0028] See also Figure 1-4 The utility model provides a technical solution: a cable tie 6 is provided on the outer surface of the sealing ring 5 , and the cable tie 6 is in close contact with the sealing ring 5 .

[0029] During operation, the cable tie 6 can limit the sealing ring 5 and the rubber ring 3, so that the sealing ring 5 and the rubber ring 3 are not easy to fall off the tube body 1. When welding is required, the cable tie 6 is removed, and then the sealing ring 5, the rubber ring 3 and the rubber sheet 4 are removed.

[0030] See also Figure 1-4 The utility model provides a technical solution: a notch 7 is provided on the side of the sealing ring 5 away from the rubber ring 3 .

[0031] During operation, due to the setting of the notch 7, when the sealing ring 5 is inconvenient to remove, the sealing ring 5 can be torn off from the notch 7, so that the sealing ring 5 can be removed more conveniently.

[0032] See also Figure 1-4 The utility model provides a technical solution: the sealing ring 5 is symmetrically connected to one side away from the rubber ring 3 with two extension pieces 8 , and the two extension pieces 8 are respectively located on both sides of the notch 7 .

[0033] During operation, the two extension pieces 8 can be pulled to opposite sides by the arrangement of the extension pieces 8, so that the notch 7 is torn open, making it easier to tear open the sealing ring 5.

[0034] See also Figure 1-4 The utility model provides a technical solution: the cable tie 6 is made of nylon-66.

[0035] During operation, the cable tie 6 made of nylon-66 has better acid resistance, corrosion resistance and bearing capacity, which is beneficial to the use of the cable tie 6 .

[0036] See also Figure 1-4 The utility model provides a technical solution: a plurality of fixing strips 9 are connected to the outer side of the rubber ring 3 , and one end of the fixing strip 9 extends toward the rubber sheet 4 and is connected to the rubber sheet 4 .

[0037] During operation, through the setting of the fixing strip 9, when the tube body 1 shakes during transportation, the fixing strip 9 will first contact the external structure and play a buffering role, preventing the external structure from directly contacting the rubber ring 3, thereby reducing the wear of the rubber ring 3.

[0038] In summary, remove the cable tie 6, and then remove the sealing ring 5, the rubber ring 3, and the rubber sheet 4 to expose the connecting surface 2 and the side of the tube body 1. Since the connecting surface 2 and the side of the tube body 1 are not coated with the zinc-aluminum-magnesium coating, when the side of the tube body 1 is subsequently welded to other parts, the weld is not prone to defects such as pores and delamination, which is beneficial to the welding operation of the tube body 1 and other parts. When the sealing ring 5 is inconvenient to remove, the sealing ring 5 can be torn off from the notch 7, making it easier to remove the sealing ring 5.

[0039] 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.

[0040] Although embodiments of the present invention 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 invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly corrosion-resistant zinc-aluminum-magnesium coated pipe, comprising a pipe body (1), characterized in that: The surface of the tube body (1) is coated with a zinc-aluminum-magnesium coating. A connecting surface (2) is provided on the side of the outer surface of the tube body (1). The connecting surface (2) and the side of the tube body (1) are not coated with the zinc-aluminum-magnesium coating. A rubber ring (3) is bonded to the surface of the connecting surface (2). A rubber sheet (4) is connected to one side of the rubber ring (3). The rubber sheet (4) is annular. The inner side of the rubber sheet (4) extends into the interior of the tube body (1) and is bonded to the inner wall of the tube body (1).

2. A highly corrosion-resistant zinc-aluminum-magnesium coated pipe according to claim 1, characterized in that: A sealing ring (5) is connected to the side of the rubber ring (3) away from the rubber sheet (4), and the sealing ring (5) extends in a direction away from the rubber ring (3).

3. A highly corrosion-resistant zinc-aluminum-magnesium coated pipe according to claim 2, characterized in that: The outer surface of the sealing ring (5) is provided with a cable tie (6).

4. A highly corrosion-resistant zinc-aluminum-magnesium coated pipe according to claim 3, characterized in that: The sealing ring (5) is provided with a notch (7) on the side away from the rubber ring (3).

5. A highly corrosion-resistant zinc-aluminum-magnesium coated pipe according to claim 4, characterized in that: Two extension pieces (8) are symmetrically connected to one side of the sealing ring (5) away from the rubber ring (3), and the two extension pieces (8) are respectively located on both sides of the notch (7).

6. A highly corrosion-resistant zinc-aluminum-magnesium coated pipe according to claim 5, characterized in that: The cable tie (6) is made of nylon-66.

7. The high corrosion-resistant zinc-aluminum-magnesium coated pipe according to claim 1, characterized in that: A plurality of fixing strips (9) are connected to the outer side of the rubber ring (3), and one end of the fixing strip (9) extends toward the rubber sheet (4) and is connected to the rubber sheet (4).

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