Spiral duct with good corrosion resistance

Abstract

The utility model relates to the technical field of spiral air pipes, in particular to a spiral air pipe with good corrosion resistance, which is characterized in that an anti-corrosion layer is arranged on the inner ring surface of a spiral air pipe main body, a noise reduction layer is arranged on the outer ring surface of the spiral air pipe main body, a support plate is arranged on the surface of a compression resistance layer, buffer rubber is arranged on the surface of the support plate, and a base layer is arranged on the end surface of the buffer rubber. A waterproof layer is arranged on the surface of the base layer; the spiral air pipe has the beneficial effects that the corrosion resistance of the spiral air pipe body can be conveniently improved during use through the anti-corrosion layer arranged in the spiral air pipe body, the service life of the spiral air pipe body is prolonged, the anti-impact capacity of the spiral air pipe body is improved through cooperation of the compression-resistant layer and the supporting plate, damage to the spiral air pipe body caused by external collision is avoided, and the service life of the spiral air pipe body is prolonged. The problem that the spiral air pipe body is corroded and gradually damaged due to the fact that the spiral air pipe body is prone to being combined with oxygen in air to be oxidized during long-term use is generally solved.

Description

Technical Field

[0001] The utility model relates to the field of spiral air ducts, in particular to a spiral air duct with good corrosion resistance. Background Art

[0002] Spiral ducts are mainly used to connect air circulation between two places and play a role in ventilation. The most widely circulated spiral ducts on the market are galvanized sheet. Galvanized sheet spiral ducts basically have the characteristics of stainless steel spiral ducts, but the price is only two-thirds of that of stainless steel ducts or even lower. Composite spiral ducts are generally used in places with relatively ordinary external environment and where the requirements for ducts are not too high.

[0003] However, because the spiral air duct is used as a connecting pipe for air circulation, the pipe is easily combined with oxygen in the air to oxidize during long-term use, causing the spiral air duct to be corroded, resulting in gradual damage to the main body of the spiral air duct, thereby reducing the service life of the spiral air duct. For this reason, the utility model proposes a spiral air duct with good corrosion resistance to solve the above-mentioned technical problems. Utility Model Content

[0004] The utility model aims to provide a spiral air duct with good corrosion resistance to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a spiral air duct with good corrosion resistance, the spiral air duct with good corrosion resistance comprising: a spiral air duct body, an anti-corrosion layer is arranged on the inner annular surface of the spiral air duct body, and a noise reduction layer is arranged on the outer annular surface of the spiral air duct body;

[0006] The pressure-resistant layer has a support plate on its surface, a buffer rubber on its surface, a base layer on its end surface, and a waterproof layer on its surface.

[0007] Preferably, the anti-corrosion layer is fixedly connected to the inner annular surface of the spiral duct body, the noise reduction layer is fixedly connected to the outer annular surface of the spiral duct body, and the thickness of the noise reduction layer is equal to twice the thickness of the anti-corrosion layer.

[0008] Preferably, the pressure-resistant layer is fixedly connected to the outer annular surface of the noise reduction layer, and the support plate is fixedly connected to the surface of the noise reduction layer. The support plate has a square plate structure, and multiple groups of support plates are arranged in a circular shape regularly around the center point of the end face of the pressure-resistant layer on the surface of the pressure-resistant layer, and a cavity is formed above the support plate and the pressure-resistant layer.

[0009] Preferably, an auxiliary plate is arranged on the side of the support plate, the auxiliary plate is in an annular plate structure, and multiple groups of auxiliary plates are arranged linearly and equidistantly about the side of the support plate.

[0010] Preferably, the buffer rubber is in a columnar structure, one end of the buffer rubber is fixedly connected to the surface of the support plate, and the inner annular surface of the base layer is fixedly connected to the other end of the buffer rubber.

[0011] Preferably, the waterproof layer is fixedly connected to the outer annular surface of the base layer, the outer annular surface of the waterproof layer is provided with a protective layer, the outer annular surface of the protective layer is provided with a sunscreen layer, and the sunscreen layer has the same thickness as the protective layer.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The spiral air duct with good corrosion resistance proposed by the utility model can improve the corrosion resistance of the spiral air duct main body during use through the anti-corrosion layer arranged inside the spiral air duct main body, thereby increasing the service life of the spiral air duct main body. The anti-pressure layer is used in conjunction with the support plate to improve the impact resistance of the spiral air duct main body, thereby preventing the spiral air duct main body from being damaged by external collisions. Overall, the problem that the spiral air duct main body is easily oxidized by combining with oxygen in the air during long-term use, causing the spiral air duct main body to be corroded and gradually damaged is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0016] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the compression-resistant layer of the utility model;

[0018] Figure 5 for Figure 4 Enlarged structural diagram at B in the middle.

[0019] In the figure: 1. Spiral duct body; 2. Anti-corrosion layer; 3. Noise reduction layer; 4. Pressure-resistant layer; 5. Support plate;

[0020] 6. Buffer rubber; 7. Base layer; 8. Waterproof layer; 9. Auxiliary plate; 10. Protective layer; 11. Sun protection layer; 12. Cavity. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0022] Embodiment 1

[0023] See also Figure 1-Figure 5 The utility model provides a technical solution: a spiral air duct with good corrosion resistance, the spiral air duct with good corrosion resistance comprises: a spiral air duct body 1, an anti-corrosion layer 2 is arranged on the inner annular surface of the spiral air duct body 1, and a noise reduction layer 3 is arranged on the outer annular surface of the spiral air duct body 1;

[0024] A pressure-resistant layer 4, a support plate 5 is arranged on the surface of the pressure-resistant layer 4, a buffer rubber 6 is arranged on the surface of the support plate 5, a base layer 7 is arranged on the end surface of the buffer rubber 6, and a waterproof layer 8 is arranged on the surface of the base layer 7;

[0025] The anti-corrosion layer 2 provided inside the spiral duct main body 1 can conveniently improve the corrosion resistance of the spiral duct main body 1 during use and increase the service life of the spiral duct main body 1. The anti-pressure layer 4 is used in conjunction with the support plate 5 to improve the impact resistance of the spiral duct main body 1 and avoid damage to the spiral duct main body 1 caused by external collisions. Overall, the problem that the spiral duct main body 1 is easily oxidized by combining with oxygen in the air during long-term use, causing the spiral duct main body 1 to be corroded and gradually damaged is solved.

[0026] Embodiment 2

[0027] On the basis of the first embodiment, in order to improve the anti-corrosion ability of the spiral duct body 1, an anti-corrosion layer 2 is provided, the anti-corrosion layer 2 is fixedly connected to the inner annular surface of the spiral duct body 1, and the noise reduction layer 3 is fixedly connected to the outer annular surface of the spiral duct body 1, and the thickness of the noise reduction layer 3 is equal to twice the thickness of the anti-corrosion layer 2;

[0028] When in use, the anti-corrosion layer 2 arranged inside the spiral duct body 1 can enhance the anti-corrosion ability of the spiral duct body 1, and the noise reduction layer 3 can be used to reduce the noise problem generated by the spiral duct body 1 during normal operation, thereby reducing the impact on the surroundings.

[0029] In order to further improve the use stability of the spiral air duct body, a waterproof layer 8 is provided, and the waterproof layer 8 is fixedly connected to the outer ring surface of the base layer 7. The outer ring surface of the waterproof layer 8 is provided with a protective layer 10, and the outer ring surface of the protective layer 10 is provided with a sunscreen layer 11, and the sunscreen layer 11 has the same thickness as the protective layer 10;

[0030] When in use, the waterproof effect of the spiral duct main body 1 can be improved by setting the waterproof layer 8 to avoid penetration caused by long-term use. The sun protection layer 11 cooperates with the protective layer 10 to improve the protection of the spiral duct main body 1 on the one hand, and also improves the sun resistance of the spiral duct main body 1 when installed in the outside world, avoiding the situation where the service life of the spiral duct main body 1 is reduced due to long-term direct sunlight.

[0031] Embodiment 3

[0032] On the basis of the second embodiment, in order to improve the impact resistance of the spiral duct body 1, a support plate 5 is provided, the pressure-resistant layer 4 is fixedly connected to the outer annular surface of the noise reduction layer 3, the support plate 5 is fixedly connected to the surface of the noise reduction layer 4, the support plate 5 is a square plate structure, and the support plate 5 is provided with multiple groups, and the multiple groups of support plates 5 are regularly arranged in a circular shape on the surface of the pressure-resistant layer 4 around the center point of the end face of the pressure-resistant layer 4, and a cavity 12 is formed above the support plate 5 and the pressure-resistant layer 4;

[0033] When in use, the support plate 5 can be used in conjunction with the pressure-resistant layer 4 to improve the impact resistance of the spiral duct body 1. The cavity 12 formed between the support plate 5 and the pressure-resistant layer 4 allows a certain gap inside to provide a certain buffering and decompression effect.

[0034] In order to further improve the compression resistance of the spiral duct body 1, a buffer rubber 6 is provided, and an auxiliary plate 9 is provided on the side of the support plate 5. The auxiliary plate 9 is an annular plate structure, and multiple groups of auxiliary plates 9 are provided. The multiple groups of auxiliary plates 9 are linearly arranged equidistantly about the side of the support plate 5. The buffer rubber 6 is a columnar structure, and one end of the buffer rubber 6 is fixedly connected to the surface of the support plate 5, and the inner annular surface of the base layer 7 is fixedly connected to the other end of the buffer rubber 6;

[0035] When in use, the auxiliary plate 9 can be provided to support the support plate 5, thereby improving the pressure resistance of the support plate 5. Then, the elasticity of the buffer rubber 6 can be used to buffer and reduce the impact force from the outside, thereby improving the protection capability of the internal spiral duct body 1.

[0036] 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 spiral air duct with good corrosion resistance, characterized by: The spiral air duct with good corrosion resistance comprises: a spiral air duct body (1), an inner annular surface of the spiral air duct body (1) is provided with an anti-corrosion layer (2), and an outer annular surface of the spiral air duct body (1) is provided with a noise reduction layer (3); A pressure-resistant layer (4), a support plate (5) is arranged on the surface of the pressure-resistant layer (4), a buffer rubber (6) is arranged on the surface of the support plate (5), a base layer (7) is arranged on the end surface of the buffer rubber (6), and a waterproof layer (8) is arranged on the surface of the base layer (7).

2. The spiral air duct with good corrosion resistance according to claim 1, characterized in that: The anti-corrosion layer (2) is fixedly connected to the inner annular surface of the spiral duct body (1), and the noise reduction layer (3) is fixedly connected to the outer annular surface of the spiral duct body (1). The thickness of the noise reduction layer (3) is equal to twice the thickness of the anti-corrosion layer (2).

3. The spiral air duct with good corrosion resistance according to claim 1, characterized in that: The pressure-resistant layer (4) is fixedly connected to the outer annular surface of the noise reduction layer (3), and the support plate (5) is fixedly connected to the surface of the pressure-resistant layer (4). The support plate (5) is a square plate-shaped structure. The support plates (5) are arranged in multiple groups. The multiple groups of support plates (5) are regularly arranged in a circular shape on the surface of the pressure-resistant layer (4) around the center point of the end face of the pressure-resistant layer (4), and a cavity (12) is formed above the support plate (5) and the pressure-resistant layer (4).

4. The spiral air duct with good corrosion resistance according to claim 1, characterized in that: An auxiliary plate (9) is arranged on the side of the support plate (5), the auxiliary plate (9) is an annular plate structure, and multiple groups of auxiliary plates (9) are arranged linearly and equidistantly with respect to the side of the support plate (5).

5. The spiral air duct with good corrosion resistance according to claim 1, characterized in that: The buffer rubber (6) is in a columnar structure, one end of the buffer rubber (6) is fixedly connected to the surface of the support plate (5), and the inner annular surface of the base layer (7) is fixedly connected to the other end of the buffer rubber (6).

6. The spiral air duct with good corrosion resistance according to claim 1, characterized in that: The waterproof layer (8) is fixedly connected to the outer ring surface of the base layer (7); the outer ring surface of the waterproof layer (8) is provided with a protective layer (10); the outer ring surface of the protective layer (10) is provided with a sunscreen layer (11); and the sunscreen layer (11) has the same thickness as the protective layer (10).

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