A corrosion-resistant and wear-resistant PVC air guide

Abstract

This utility model relates to the field of air guide technology and discloses a corrosion-resistant and wear-resistant PVC air guide, a PVC air guide duct, an outer cylinder, the outer cylinder being disposed outside the PVC air guide duct; a reinforcing frame, the reinforcing frame being fixedly connected between the outer wall of the PVC air guide duct and the inner wall of the outer cylinder; an anti-wear component, disposed inside the PVC air guide duct, increasing the wear resistance of the inner wall of the PVC air guide duct; the anti-wear component, composed of an arc-shaped elastic plate and a semi-circular rubber ring, buffers the airflow impact force through elastic deformation, significantly increasing the wear resistance of the inner wall of the PVC air guide duct, reducing wear caused by airflow scouring and foreign object collision, and extending the service life of the air guide; the epoxy resin coating and polyurethane coating on the inner wall of the PVC air guide duct, and the zinc-rich primer and rubber coating on the outer wall, form a multi-layer protective structure, effectively resisting the corrosion of acid and alkaline gases and moisture in the environment, preventing material aging and cracking, and improving the corrosion resistance of the air guide.

Description

Technical Field

[0001] This utility model relates to the field of air guide technology, specifically a corrosion-resistant and wear-resistant PVC air guide. Background Technology

[0002] When it is necessary to adjust the airflow speed of the air guide hole, turn the knob, and the rotating plate fixedly connected to it will rotate relative to the fixed plate. The first ventilation hole will then shift relative to the second ventilation hole. By adjusting the size of the overlap area between the first and second ventilation holes, the airflow speed of the air guide hole can be adjusted. When the first and second ventilation holes are completely offset, no airflow will come out of the air guide hole. When the first and second ventilation holes are completely overlapped, the airflow speed of the air guide hole is at its maximum. This allows for more precise adjustment of the airflow speed of the air guide component, effectively solving the problem of reduced passenger riding experience due to excessive or insufficient airflow speed.

[0003] Application No. 202321597022.1 discloses an air guide component for an automotive air conditioner. When it is necessary to adjust the airflow speed of the air guide hole, rotating the knob causes the rotating plate fixedly connected to it to rotate relative to the fixed plate. The first ventilation hole is then misaligned relative to the second ventilation hole. By adjusting the overlap area between the first and second ventilation holes, the airflow speed of the air guide hole can be adjusted. When the first and second ventilation holes are completely misaligned, no airflow comes out of the air guide hole. When the first and second ventilation holes are completely overlapped, the airflow speed of the air guide hole is at its maximum. This allows for more precise adjustment of the airflow speed of the air guide component, effectively solving the problem of reduced passenger comfort due to excessive or insufficient airflow speed.

[0004] After long-term use, the corrosion and wear resistance of the aforementioned air guide components will significantly decrease. Reduced corrosion resistance will lead to the air guide components being corroded by acidic and alkaline gases and moisture in the environment, resulting in material aging and cracking. Weakened wear resistance will cause the surface of the air guide components to wear rapidly under the scouring of airflow and collision with foreign objects, causing deformation and air leakage. These problems not only reduce the efficiency of the ventilation system and increase energy consumption, but may also cause system failures due to component damage, and even pose safety hazards, seriously affecting the service life and reliability of the ventilation system. To address this, we propose a corrosion-resistant and wear-resistant PVC air guide component. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a corrosion-resistant and wear-resistant PVC air guide, which solves the aforementioned problems.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a corrosion-resistant and wear-resistant PVC air guide component, comprising:

[0007] PVC air duct;

[0008] An outer cylinder, which is disposed outside the PVC air duct;

[0009] A reinforcing frame is fixedly connected between the outer wall of the PVC air duct and the inner wall of the outer cylinder;

[0010] Abrasion-resistant components are installed inside the PVC air duct to increase the abrasion resistance of the inner wall of the PVC air duct.

[0011] Preferably, the wear-resistant component includes an arc-shaped elastic plate and a semi-circular rubber ring;

[0012] The arc-shaped elastic plate is fixedly connected to the inner wall of the PVC air duct, and there are several arc-shaped elastic plates distributed in a circular pattern.

[0013] The semi-circular rubber ring is fixedly connected to the inner wall of the PVC air duct. There are several semi-circular rubber rings arranged linearly. The arc-shaped elastic plate is sleeved on the outer wall of the semi-circular rubber ring, and the outer wall of the semi-circular rubber ring is in contact with the inner wall of the arc-shaped elastic plate.

[0014] Preferably, an installation ring is fixedly connected to the side wall of the outer cylinder, and the end of the installation ring away from the outer cylinder is chamfered.

[0015] Preferably, a flange is fixedly fitted onto the outer wall of the outer cylinder at the end away from the mounting ring.

[0016] Preferably, the inner wall of the PVC air duct is coated with an epoxy resin coating;

[0017] The epoxy resin coating is provided with a polyurethane coating at the end away from the PVC air duct.

[0018] Preferably, the outer wall of the PVC air duct is coated with a zinc-rich primer, and the end of the zinc-rich primer away from the outer cylinder is coated with a rubber coating.

[0019] Compared with the prior art, this utility model provides a corrosion-resistant and wear-resistant PVC air guide, which has the following beneficial effects:

[0020] 1. Enhanced wear resistance: The wear-resistant component, composed of an arc-shaped elastic plate and a semi-circular rubber ring, buffers the impact of airflow through elastic deformation, significantly increasing the wear resistance of the inner wall of the PVC air duct, reducing wear caused by airflow scouring and collision with foreign objects, and extending the service life of the air duct components; the epoxy resin coating and polyurethane coating on the inner wall of the PVC air duct, and the zinc-rich primer and rubber coating on the outer wall form a multi-layer protective structure, effectively resisting the corrosion of acid and alkaline gases and moisture in the environment, preventing material aging and cracking, and improving the corrosion resistance of the air duct components.

[0021] 2. Enhanced structural stability: The reinforcing frame strengthens the connection between the PVC air duct and the outer cylinder, improving the structural stability of the entire air duct component, reducing problems such as deformation and air leakage caused by external forces, and ensuring the reliable operation of the ventilation system. Attached Figure Description

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

[0023] Figure 2 This is a schematic diagram of the interior of the cylindrical part of this utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the PVC air duct of this utility model;

[0025] Figure 4 This is a schematic diagram of the internal structure of the PVC air duct of this utility model;

[0026] Figure 5 This is a schematic diagram of the external structure of the outer cylinder of this utility model.

[0027] In the diagram: 1. PVC air duct; 2. Outer cylinder; 3. Flange; 4. Mounting ring; 5. Arc-shaped spring plate; 6. Semi-circular rubber ring; 7. Epoxy resin coating; 8. Polyurethane coating; 9. Zinc-rich primer; 10. Rubber coating; 11. Reinforcing frame. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5 A corrosion-resistant and wear-resistant PVC air guide component, comprising:

[0030] PVC air duct 1;

[0031] External cylinder 2 is installed outside the PVC air duct 1;

[0032] Reinforcing frame 11 is fixedly connected between the outer wall of PVC air duct 1 and the inner wall of outer cylinder 2;

[0033] The reinforcing frame 11 is securely connected between the outer wall of the PVC air duct 1 and the inner wall of the outer cylinder 2, forming a support structure. The wear-resistant components are installed inside the PVC air duct 1, providing a buffering effect when airflow impacts. The outer cylinder 2 encloses the PVC air duct 1, resisting external corrosion. The reinforcing frame 11 enhances the connection strength between the PVC air duct 1 and the outer cylinder 2, improving the structural stability of the entire air duct component, reducing deformation and air leakage caused by external forces, and ensuring the reliable operation of the ventilation system.

[0034] The wear-resistant components include an arc-shaped elastic plate 5 and a semi-circular rubber ring 6;

[0035] The arc-shaped spring plate 5 is fixedly connected to the inner wall of the PVC air duct 1. There are several arc-shaped spring plates 5, which are distributed in a circular pattern.

[0036] The semi-circular rubber ring 6 is fixedly connected to the inner wall of the PVC air duct 1. There are several semi-circular rubber rings 6 arranged linearly. The arc-shaped elastic plate 5 is sleeved on the outer wall of the semi-circular rubber ring 6. The outer wall of the semi-circular rubber ring 6 is in contact with the inner wall of the arc-shaped elastic plate 5.

[0037] The airflow impacts the arc-shaped elastic plate 5, causing it to deform and compress the semi-circular rubber ring 6, absorbing the impact energy through elastic deformation. The wear-resistant component composed of the arc-shaped elastic plate 5 and the semi-circular rubber ring 6 buffers the impact force of the airflow through elastic deformation, significantly increasing the wear resistance of the inner wall of the PVC air duct 1, reducing wear caused by airflow scouring and collision with foreign objects, and extending the service life of the air duct component. The epoxy resin coating 7 and polyurethane coating 8 on the inner wall of the PVC air duct 1, and the zinc-rich primer 9 and rubber coating 10 on the outer wall form a multi-layer protective structure, effectively resisting the corrosion of acid and alkaline gases and moisture in the environment, preventing material aging and cracking, and improving the corrosion resistance of the air duct component.

[0038] An installation ring 4 is fixedly connected to the side wall of the outer cylinder 2, and the end of the installation ring 4 away from the outer cylinder 2 is chamfered.

[0039] The mounting ring 4 on the side wall of the outer cylinder 2 has a chamfered design at the end furthest from the outer cylinder 2. When airflow enters from the outer cylinder 2, the chamfered structure changes the airflow direction and velocity, causing the airflow to diffuse and enter the PVC air duct 1 in a more uniform state.

[0040] A flange 3 is fixedly fitted on the outer wall of the outer cylinder 2 at the end away from the mounting ring 4;

[0041] The flange 3 is fixedly sleeved on the outer wall of the outer cylinder 2 at the end away from the mounting ring 4. It is connected to other components of the ventilation system by bolts or welding to ensure good sealing after the air guide is installed.

[0042] The inner wall of the PVC air duct 1 is coated with an epoxy resin coating 7;

[0043] The epoxy resin coating 7 is provided with a polyurethane coating 8 at the end away from the PVC air duct 1;

[0044] The epoxy resin coating 7 first forms a chemical protective layer to isolate acid and alkali gases and water vapor; the polyurethane coating 8 increases the surface hardness and impact resistance on the outside, forming a composite protective layer.

[0045] The outer wall of the PVC air duct 1 is provided with zinc-rich primer 9, and the end of the zinc-rich primer 9 away from the outer cylinder 2 is provided with rubber coating 10;

[0046] The outer wall of the PVC air duct 1 is first coated with zinc-rich primer 9, which utilizes the electrochemical properties of zinc to form sacrificial anode protection on the metal surface; then it is covered with a rubber coating 10 to isolate external water vapor, oxygen and other corrosive media, forming double protection.

[0047] Structural Description: PVC air duct 1: As the main body of the air duct, it is responsible for airflow transportation; it is made of PVC material, which has a certain toughness and chemical resistance; its inner wall is provided with epoxy resin coating 7 and polyurethane coating 8 to enhance corrosion resistance and wear resistance; the outer wall is coated with zinc-rich primer 9 and rubber coating 10, providing all-round protection and extending service life.

[0048] Outer tube 2: Sleeves over the PVC air duct 1 for protection. Side wall fixing ring 4 helps to disperse air force and is connected to the PVC air duct 1 by a reinforcing frame 11 to enhance the overall structural stability and resist the influence of the external environment.

[0049] Flange 3: Fixedly sleeved at one end of the outer wall of the outer cylinder 2, it is a key structure for connecting the air guide to other ventilation components. It allows for quick and stable installation via bolts or welding, while ensuring a tight seal at the connection point to prevent air leakage.

[0050] Mounting ring 4: Fixed to the side wall of the outer cylinder 2, with a chamfered design at one end; when the airflow enters the air guide, the chamfered structure changes the direction and speed of the airflow, disperses the wind force, and makes the airflow enter the PVC air guide duct 1 evenly, reducing local wear.

[0051] Arc-shaped spring plate 5: fixed to the inner wall of PVC air duct 1, distributed in a circular pattern; the material is elastic and deforms under the impact of airflow. By squeezing the semi-circular rubber ring 6 inside, it buffers the impact of airflow and reduces the wear of the inner wall.

[0052] Semicircular rubber ring 6: linearly arranged and fixed to the inner wall of PVC air duct 1, and fitted by arc-shaped elastic plate 5; relying on its own soft and wear-resistant properties, in conjunction with arc-shaped elastic plate 5, it absorbs the impact energy of airflow and effectively protects the inner wall of PVC air duct 1.

[0053] Epoxy resin coating 7: Coated on the inner wall of PVC air duct 1 to form a dense chemical protective layer; with good acid and alkali resistance and corrosion resistance, it isolates corrosive substances in the environment and prevents PVC material from aging and cracking.

[0054] Polyurethane coating 8: Covers the epoxy resin coating 7, improving the surface hardness and impact resistance of the inner wall of the PVC air duct 1; reducing damage caused by airflow scouring and collision with foreign objects, while facilitating cleaning and maintenance.

[0055] Zinc-rich primer 9: Applied to the outer wall of PVC air duct 1, it utilizes the electrochemical protection principle of zinc to form a sacrificial anode on the metal surface, preferentially consuming itself to prevent PVC air duct 1 from being corroded, providing long-term anti-corrosion protection.

[0056] Rubber coating 10: Located on the outside of zinc-rich primer 9, it has good sealing and impact resistance; it isolates corrosive media such as water vapor and oxygen, fills micro gaps, and further enhances the protective ability of the outer wall of PVC air duct 1.

[0057] Reinforcing frame 11: Fixedly connected between the outer wall of the PVC air duct 1 and the inner wall of the outer cylinder 2, forming a rigid support structure. This enhances the overall strength of the air guide component, improves its resistance to deformation, and ensures stable operation of the air guide component under complex working conditions.

[0058] Instructions for use

[0059] The corrosion-resistant and wear-resistant PVC air guide is fixed to the corresponding ventilation system position via flange 3. Air enters from the end of the outer cylinder 2 away from flange 3. When passing the mounting ring 4 on the side wall of the outer cylinder 2, the chamfered end of the mounting ring 4 away from the outer cylinder 2 disperses the airflow, preventing excessively concentrated airflow impact and allowing the airflow to enter the PVC air guide duct 1 more evenly. After entering the inner wall of the PVC air guide duct 1, the airflow blows towards several arc-shaped elastic plates 5 fixedly connected to its inner wall and distributed in a circular pattern. The arc-shaped elastic plates 5 deform under the impact of the airflow, compressing the linearly distributed semi-circular rubber rings 6 inside them, converting the airflow impact force into elastic deformation buffering force, reducing the airflow impact on the inner wall of the PVC air guide duct 1. The epoxy resin coating 7 and polyurethane coating 8 on the inner wall of the PVC air duct 1 effectively isolate acid and alkaline gases and moisture in the environment, preventing the PVC air duct 1 material from being corroded and aged. The zinc-rich primer 9 and rubber coating 10 on the outer wall also play a protective role. The zinc-rich primer 9 uses the electrochemical protection principle of zinc to prevent metal corrosion, while the rubber coating 10 further enhances wear resistance and sealing performance, providing all-round protection for the PVC air duct 1. The reinforcing frame 11 is fixedly connected between the outer wall of the PVC air duct 1 and the inner wall of the outer cylinder 2, which enhances the structural strength of the entire air duct component and avoids deformation and damage to the air duct component due to airflow impact or external force, ensuring the stability of the air duct component during use.

[0060] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant and wear-resistant PVC air guide component, comprising: PVC air duct (1); The outer cylinder (2), which is disposed outside the PVC air duct (1), is characterized in that it further includes: A reinforcing frame (11) is fixedly connected between the outer wall of the PVC air duct (1) and the inner wall of the outer cylinder (2); The wear-resistant component is installed inside the PVC air duct (1) to increase the wear resistance of the inner wall of the PVC air duct (1).

2. The corrosion-resistant and wear-resistant PVC air guide component according to claim 1, characterized in that: The wear-resistant component includes an arc-shaped elastic plate (5) and a semi-circular rubber ring (6). The arc-shaped spring plate (5) is fixedly connected to the inner wall of the PVC air duct (1), and there are several arc-shaped spring plates (5) distributed in a circular pattern; The semi-circular rubber ring (6) is fixedly connected to the inner wall of the PVC air duct (1). There are several semi-circular rubber rings (6) arranged in a linear distribution. The arc-shaped elastic plate (5) is sleeved on the outer wall of the semi-circular rubber ring (6). The outer wall of the semi-circular rubber ring (6) is in contact with the inner wall of the arc-shaped elastic plate (5).

3. The corrosion-resistant and wear-resistant PVC air guide component according to claim 1, characterized in that: An installation ring (4) is fixedly connected to the side wall of the outer cylinder (2), and the end of the installation ring (4) away from the outer cylinder (2) is chamfered.

4. The corrosion-resistant and wear-resistant PVC air guide component according to claim 1, characterized in that: A flange (3) is fixedly fitted on the outer wall of the outer cylinder (2) at the end away from the mounting ring (4).

5. The corrosion-resistant and wear-resistant PVC air guide component according to claim 1, characterized in that: The inner wall of the PVC air duct (1) is provided with an epoxy resin coating (7). The epoxy resin coating (7) has a polyurethane coating (8) at the end away from the PVC air duct (1).

6. The corrosion-resistant and wear-resistant PVC air guide component according to claim 1, characterized in that: The outer wall of the PVC air duct (1) is provided with zinc-rich primer (9), and the end of the zinc-rich primer (9) away from the outer cylinder (2) is provided with a rubber coating (10).

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