A flexible, shapeable ventilation elbow

Abstract

This utility model discloses a flexible and shapeable ventilation elbow, comprising a corrugated metal hose, an insulation layer, and a steel wire hose. The corrugated metal hose is made by rolling strip metal foil into a corrugated shape and then spirally winding it. The insulation layer tightly wraps around the outside of the corrugated metal hose, and the steel wire hose is sleeved on the outside of the insulation layer. The steel wire hose is made by wrapping a strip of flexible film around a high-elasticity steel wire. The corrugated structure and spiral seam design of the corrugated metal hose give the elbow good flexibility and extensibility, which can flexibly adapt to pipeline turning requirements and installation size deviations. The spiral high-elasticity steel wire inside the steel wire hose forms a stable support, which does not affect the bending performance and enhances the radial strength, avoiding the problem of the corrugated metal hose being easily flattened. At the same time, the corrugated metal hose has a certain rigidity and can maintain a preset angle after bending, achieving a balance between flexibility and shape. The insulation layer can reduce heat exchange and reduce energy loss.

Description

Technical Field

[0001] This utility model relates to the field of ventilation duct technology, and in particular to a flexible and shapeable ventilation elbow. Background Technology

[0002] In ventilation and air conditioning systems, ducts are widely used to transport hot and cold air. Due to the limitations of building space, ducts often need to bend and deflect. Existing technologies for duct bends have significant drawbacks: traditional rigid elbows, while stable in shape, cannot adapt to dimensional deviations or angle adjustments during on-site installation, exhibiting extremely poor flexibility; single-metal corrugated pipe elbows, although flexible and possessing a certain degree of rigidity, have weak radial compressive strength and are easily flattened and deformed by external pressure or internal wind pressure, leading to misaligned duct connections and obstructed airflow, causing numerous inconveniences for installation and system operation.

[0003] Therefore, those skilled in the art have provided a flexible, shape-adjustable ventilation elbow to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a flexible and shapeable ventilation elbow.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flexible, shape-adjustable ventilation elbow, comprising:

[0007] A corrugated metal hose, wherein the corrugated metal hose is made by rolling strip metal foil into a corrugated shape and then winding it with a spiral seam;

[0008] The insulation layer is tightly wrapped around the outside of the corrugated metal hose;

[0009] A steel wire hose is fitted over the outside of the insulation layer. The steel wire hose is made by wrapping a strip of flexible film around a highly elastic steel wire.

[0010] Using the above technical solution, the metal corrugated hose is made of strip metal foil through roll corrugation and spiral seam winding. Its corrugated structure and spiral seam design give it good overall flexibility and extensibility, allowing it to bend flexibly according to the turning requirements of the ventilation duct, while maintaining a certain rigidity after bending, that is, it can maintain its shape after bending. The insulation layer can effectively block heat exchange between the inside and outside of the elbow, reducing energy loss during ventilation. The high-elasticity steel wire inside the steel wire hose forms a ring support, which does not affect the bending and extensibility of the elbow, and enhances the radial compressive strength of the overall structure, preventing the metal corrugated hose from radially flattening due to external compression or excessive internal wind pressure, thus extending the service life of the elbow.

[0011] Preferably, the strip metal foil is made of aluminum foil, copper foil or stainless steel foil, and has a thickness of 0.05-0.20 mm;

[0012] Using the above technical solutions, aluminum foil and copper foil are lightweight and thin with excellent ductility. Combined with the corrugated structure, they can further improve the bending flexibility of metal corrugated hoses. Stainless steel foil has stronger corrosion resistance and is suitable for ventilation environments with humid or corrosive gases, thus expanding the application scenarios of elbows.

[0013] Preferably, the insulation layer is made of glass wool, polyester wool or rubber and plastic insulation material, with a thickness of 15-50mm.

[0014] Using the above technical solutions, glass wool and polyester wool have good heat insulation and sound absorption properties, which can reduce airflow noise during ventilation while keeping the temperature warm; rubber and plastic materials are both waterproof and elastic, suitable for humid environments, and can deform synchronously with the bending action of metal corrugated hoses, preventing the insulation layer from cracking due to bending; the 15-50mm thickness design can be flexibly selected according to the insulation requirements of different ventilation scenarios.

[0015] Preferably, the strip-shaped flexible film is made of aluminum foil polyester film, plastic coated cloth, or rubber coated cloth.

[0016] Using the above technical solution, the aluminum foil polyester film combines the sealing properties of aluminum foil with the flexibility of polyester film, which can block the intrusion of external moisture and protect the internal insulation layer and metal corrugated hose; the plastic coated cloth and rubber coated cloth have strong weather resistance and can resist the corrosion of environmental factors such as ultraviolet rays, acids and alkalis, extending the outdoor service life of the steel wire hose; all three materials have good flexibility and can deform synchronously with the bending and stretching of the steel wire hose, avoiding tearing or damage caused by repeated deformation and ensuring the long-term stability of the steel wire hose.

[0017] Preferably, the high-elasticity steel wire is distributed in a spiral structure with a diameter of 0.5-2 mm.

[0018] By adopting the above technical solution, the spiral distribution ensures that the supporting force of the steel wire is evenly distributed along the circumference of the elbow, ensuring the consistency of radial compressive strength and avoiding deformation caused by excessive local stress. At the same time, the spiral structure is compatible with the spiral seam design of the metal corrugated hose, and can deform synchronously with the bending and expansion of the elbow without affecting the overall flexibility and shaping performance.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This invention effectively solves the defects of existing elbows through a three-layer composite structure design of "metal corrugated hose + insulation layer + steel wire hose": the corrugated structure and spiral interlocking design of the metal corrugated hose give the elbow good flexibility and extensibility, which can flexibly adapt to pipeline turning requirements and installation size deviations; the spiral high-elasticity steel wires inside the steel wire hose form stable support, which does not affect bending performance and enhances radial strength, avoiding the problem of metal corrugated pipe being easily flattened. At the same time, the metal corrugated hose has a certain rigidity and can maintain a preset angle after bending, achieving a balance between flexibility and shape retention; the insulation layer can reduce heat exchange and reduce energy loss. Attached Figure Description

[0021] To illustrate the technical solutions in the embodiments of the present invention or the prior art more specifically and intuitively, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0022] Figure 1 This is a schematic diagram of the elbow structure proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the spiral seam structure of the metal corrugated hose proposed in this utility model.

[0024] In the diagram: 1. Corrugated metal hose; 2. Insulation layer; 3. Steel wire hose. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1-2 A flexible, shapeable ventilation elbow, comprising:

[0027] Metal Corrugated Hose 1: The metal corrugated hose 1 is made by rolling strip metal foil into a corrugated shape and then winding it with a spiral bite. Its corrugated structure and spiral bite design give it good flexibility and extensibility. When under stress, it can be flexibly bent according to the turning requirements of the ventilation duct. At the same time, due to its structure and material characteristics, the metal corrugated hose has a certain rigidity and can maintain its shape after bending.

[0028] Insulation layer 2: tightly wrapped around the outside of the metal corrugated hose 1, which can effectively block the heat exchange between the inside and outside of the elbow and reduce energy loss during ventilation.

[0029] Steel wire hose 3: Sleeved on the outside of the insulation layer 2, the steel wire hose 3 is made of a strip of flexible film wrapped around a high-elastic steel wire. The high-elastic steel wire forms a ring support, which does not affect the bending and expansion performance of the elbow, and can enhance the radial pressure resistance of the overall structure. It prevents the metal corrugated hose 1 from being radially flattened due to external extrusion or excessive internal wind pressure, thus extending the service life of the elbow.

[0030] The strip metal foil uses aluminum foil, copper foil, or stainless steel foil, with a thickness of 0.05-0.20mm. Aluminum and copper foil are lightweight and have excellent ductility, which, combined with the corrugated structure, can further improve the bending flexibility of the metal corrugated hose. Stainless steel foil has stronger corrosion resistance and is suitable for ventilation environments with humid or corrosive gases, thus broadening the application scenarios of the elbow. The thickness range of 0.05-0.20mm ensures structural strength while avoiding the reduction in flexibility caused by excessive material thickness, thus balancing the needs of "flexibility" and "support".

[0031] Insulation layer 2 uses glass wool, polyester wool, or rubber and plastic insulation materials with a thickness of 15-50mm. Glass wool and polyester wool have good heat insulation and sound absorption properties, which can reduce airflow noise during ventilation while providing heat insulation. Rubber and plastic materials are both waterproof and elastic, suitable for humid environments, and can deform synchronously with the bending action of metal corrugated hoses, preventing the insulation layer from cracking due to bending. The 15-50mm thickness design can be flexibly selected according to the heat insulation requirements of different ventilation scenarios. In low-temperature ventilation scenarios, a thicker insulation layer can be selected to enhance the heat insulation effect, while in normal-temperature ventilation scenarios, a thinner insulation layer can be selected to reduce the overall weight.

[0032] The flexible strip membrane is made of aluminum foil polyester film, plastic coated cloth, or rubber coated cloth. The aluminum foil polyester film combines the sealing properties of aluminum foil with the flexibility of polyester film, which can block the intrusion of external moisture and protect the internal insulation layer and metal corrugated hose. The plastic coated cloth and rubber coated cloth have strong weather resistance and can resist the corrosion of environmental factors such as ultraviolet rays, acids and alkalis, extending the outdoor service life of the steel wire hose. All three materials have good flexibility and can deform synchronously with the bending and stretching of the steel wire hose, avoiding tearing or damage caused by repeated deformation and ensuring the long-term stability of the steel wire hose.

[0033] The high-elasticity steel wire is distributed in a spiral structure with a diameter of 0.5-2mm. The spiral distribution ensures that the supporting force of the steel wire is evenly distributed along the circumference of the elbow, ensuring the consistency of radial compressive strength and avoiding deformation caused by excessive local stress. At the same time, the spiral structure is compatible with the spiral interlocking design of the metal corrugated hose, and can deform synchronously with the bending and expansion of the elbow without affecting the overall flexibility and shaping performance.

[0034] Working principle:

[0035] The corrugated metal hose 1, with its corrugated structure of strip metal foil and spiral interlocking design, can be flexibly bent and extended to adapt to pipe turns and installation size adjustments. The spiral high-elasticity steel wire inside the wire hose 3 deforms synchronously with the bend, providing shaping support without hindering flexible movement, keeping the bend at the preset bending angle and enhancing radial pressure resistance, thus preventing the corrugated metal hose 1 from deforming under pressure. The insulation layer 2 achieves its insulation function by blocking heat exchange. The three-layer structure works together to meet the flexibility and shaping requirements of ventilation duct turning connections, while ensuring structural stability and durability.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flexible, shapeable ventilation elbow, characterized in that, include: Metal corrugated hose (1), wherein the metal corrugated hose (1) is made by rolling strip metal foil into a corrugated shape and then winding it with a spiral seam; The insulation layer (2) is tightly wrapped around the outside of the metal corrugated hose (1); A steel wire hose (3) is fitted on the outside of the insulation layer (2). The steel wire hose (3) is made by wrapping a strip of flexible film around a high-elastic steel wire.

2. The flexible, shapeable ventilation elbow according to claim 1, characterized in that, The strip metal foil is made of aluminum foil, copper foil or stainless steel foil, and has a thickness of 0.05-0.20 mm.

3. The flexible, shapeable ventilation elbow according to claim 1, characterized in that, The insulation layer (2) is made of glass wool, polyester wool or rubber and plastic insulation material, with a thickness of 15-50mm.

4. The flexible, shapeable ventilation elbow according to claim 1, characterized in that, The strip-shaped flexible membrane is made of aluminum foil polyester film, plastic coated cloth, or rubber coated cloth.

5. A flexible, shapeable ventilation elbow according to claim 1, characterized in that, The high-elasticity steel wire is distributed in a spiral structure with a diameter of 0.5-2mm.

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