Wear-resistant ventilation device

By installing protective plates and wear-resistant coatings inside the ventilation ducts, combined with the design of the filter components, the problem of wear caused by airflow carrying impurities in the ventilation ducts is solved, achieving the effects of reducing wear and extending service life, and improving airflow cleanliness and maintenance convenience.

CN224261876UActive Publication Date: 2026-05-19FUJIAN XINMINFENG VENTILATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN XINMINFENG VENTILATION EQUIP CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

During prolonged use, ventilation ducts experience wear and tear on their inner walls due to airflow carrying impurities that impact the duct walls, thus reducing their lifespan.

Method used

The ventilation duct is fitted with a protective plate and a wear-resistant coating on its inner wall, and is equipped with a filter assembly, including a V-tube, slide rail, slide bar and filter plate. The slide rail and slide bar structure is designed to facilitate disassembly and cleaning, and the PTFE coating is combined to improve wear resistance.

Benefits of technology

It effectively reduces the wear of particulate matter in the airflow on the inner wall of the ventilation duct, extends its service life, and ensures the cleanliness of the airflow through the filter components, making it easy to clean and maintain.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224261876U_ABST
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Abstract

The utility model relates to the technical field of ventilation devices, and discloses a wear-resistant ventilation device which comprises a ventilation pipe, a protection plate is fixedly connected to the inner wall of the ventilation pipe, a wear-resistant coating is arranged on the surface of the protection plate, an inner clamping plate is fixedly connected to the inner wall of the ventilation pipe, a first extension plate is fixedly connected to the left end of the ventilation pipe, and a second extension plate is fixedly connected to the right end of the ventilation pipe. The surface of the first extension plate is fixedly connected with a filtering assembly through bolts, the filtering assembly comprises a second extension plate, the left end of the second extension plate is fixedly connected with a V-shaped pipe, and the inner wall of the V-shaped pipe is fixedly connected with a sliding rail. By arranging the filter plate, firstly, airflow enters the V-shaped pipe, impurities in the airflow are effectively intercepted through the filter plate in the filter assembly, and the situation that the impurities directly reach the interior of the ventilation pipe and collide with the surface of the ventilation pipe, and consequently the inner wall of the ventilation pipe is abraded is avoided; the filter plate can be conveniently detached in a sliding manner and is convenient to clean and replace.
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Description

Technical Field

[0001] This utility model relates to the field of ventilation device technology, specifically to a wear-resistant ventilation device. Background Technology

[0002] Ventilation systems are essential devices for improving the air quality in a space. They use mechanical or natural methods to expel stale air and introduce fresh air, maintaining suitable air quality and temperature. Common ventilation systems include fans, ductwork, and exhaust fans. In industrial settings, ventilation systems effectively remove harmful gases and dust, protecting worker health; in residential buildings, they regulate indoor humidity and temperature, enhancing living comfort. The design and installation of ventilation systems must be tailored to the specific needs of the location, rationally planning airflow, air pressure, and ventilation paths to ensure efficient operation and create a healthy and comfortable living and working environment.

[0003] During prolonged use, ventilation ducts will accumulate impurities as airflow carries them into the duct during exhaust. These impurities continuously impact the inner wall of the duct, causing wear and tear and reducing its lifespan. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a wear-resistant ventilation device, including a ventilation pipe, a protective plate fixedly connected to the inner wall of the ventilation pipe, a wear-resistant coating on the surface of the protective plate, an inner clamping plate fixedly connected to the inner wall of the ventilation pipe, an extension plate fixedly connected to the left end of the ventilation pipe, and a filter assembly fixedly connected to the surface of the extension plate by bolts.

[0005] The filter assembly includes an extension plate two, a V-shaped tube fixedly connected to the left end of the extension plate two, a slide rail fixedly connected to the inner wall of the V-shaped tube, a slide bar slidably connected inside the slide rail, a filter plate fixedly connected to the bottom of the slide bar, a threaded rod fixedly connected to the front of the V-shaped tube, a sealing plate sleeved on the surface of the threaded rod, and a nut threadedly connected to the surface of the sealing plate.

[0006] The above technical solution, by installing a protective plate and wear-resistant coating on the inner wall of the ventilation duct, effectively reduces the wear of particulate matter in the airflow on the inner wall of the ventilation duct, extending the service life of the ventilation duct. The filter assembly is designed to effectively intercept impurities in the airflow, ensuring the cleanliness of the airflow. The structure of the slide rail and slide bar makes the filter plate removable, facilitating cleaning and replacement. The design of the inner retaining plate enhances the connection stability between the ventilation duct and the filter assembly, ensuring that the filter assembly will not shift due to airflow impact during operation. Furthermore, removing the inner retaining plate allows the entire filter plate to be removed from inside the V-shaped tube.

[0007] As a further improvement to the above solution, the material of the wear-resistant coating is a polytetrafluoroethylene coating.

[0008] Through the above technical solutions, polytetrafluoroethylene has excellent wear resistance, corrosion resistance and low coefficient of friction, which can significantly improve the wear resistance of the protective plate and further extend the service life of the ventilation device.

[0009] As a further improvement to the above solution, the surface of the inner card plate is in contact with the inner wall of the V-shaped tube.

[0010] Through the above technical solution, the contact between the inner card plate and the inner wall of the V-shaped tube enhances the installation stability of the filter assembly in the ventilation duct and prevents the filter assembly from loosening or shifting due to airflow impact during operation.

[0011] As a further improvement to the above solution, two slide rails are provided, and the two slide rails are evenly distributed on the inner wall with respect to the center of the front of the filter plate.

[0012] With the above technical solution, the two slide rails are symmetrically distributed, which can support the filter plate more evenly, ensuring that the filter plate remains stable during operation and reducing shaking caused by airflow impact.

[0013] As a further improvement to the above solution, the sealing plate is located between the threaded rod and the nut, and the rear end of the sealing plate is in contact with the surface of the filter plate.

[0014] The above technical solution, through the cooperation of the sealing plate and the nut, can firmly fix the filter plate inside the V-shaped tube, preventing the filter plate from shifting or loosening due to airflow impact during operation.

[0015] As a further improvement to the above solution, a feeding platform is fixedly connected to the bottom of the V-shaped tube, an external threaded sleeve is fixedly connected to the bottom of the feeding platform, an internal threaded sleeve is threadedly connected to the surface of the external threaded sleeve, and a handle is fixedly connected to the bottom of the internal threaded sleeve.

[0016] The above technical solution, with its threaded connection design of the external and internal threaded sleeves, allows the unloading platform to be easily disassembled and installed. The handle design further facilitates disassembly and cleaning by operators, improving maintenance efficiency.

[0017] As a further improvement to the above solution, the unloading platform is located below the filter plate and at the left end of the filter plate.

[0018] The above technical solution ensures that the intercepted impurities can fall smoothly into the discharge platform, preventing impurities from accumulating under the filter plate and affecting the filtration effect.

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

[0020] This invention incorporates a filter plate. First, the airflow enters the interior of the V-shaped tube, and the filter plate in the filter assembly effectively intercepts impurities in the airflow, preventing impurities from directly reaching the interior of the ventilation duct and impacting its surface, thus avoiding wear on the inner wall of the ventilation duct. Through the slide rail and slide bar structure inside the V-shaped tube, the filter plate can be easily slidably disassembled, facilitating cleaning and replacement.

[0021] This invention features a feeding platform that is threadedly connected to the external and internal threaded sleeves. This allows impurities to fall into the feeding platform after being filtered by the filter plate. The internal and external threaded sleeves can then be removed to clean the impurities inside. 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 cross-sectional view of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the overall separate structure of the filter plate and V-shaped tube of this utility model;

[0025] Figure 4 This is a schematic diagram of the overall connection structure of the ventilation duct of this utility model;

[0026] Figure 5 This is a schematic diagram of the overall connection structure of the protective plate of this utility model.

[0027] In the diagram: 1. Ventilation duct; 2. Protective plate; 3. Wear-resistant coating; 4. Inner clamping plate; 5. Extension plate one; 6. Filter assembly; 61. Extension plate two; 62. V-tube; 63. Slide rail; 64. Slide bar; 65. Filter plate; 66. Threaded rod; 67. Sealing plate; 68. Nut; 7. Unloading platform; 8. External threaded sleeve; 9. Internal threaded sleeve; 10. Handle. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] Example:

[0030] Please combine Figure 1-5This embodiment of an anti-wear ventilation device includes a ventilation pipe 1, a protective plate 2 fixedly connected to the inner wall of the ventilation pipe 1, a wear-resistant coating 3 provided on the surface of the protective plate 2, an inner clamping plate 4 fixedly connected to the inner wall of the ventilation pipe 1, an extension plate 5 fixedly connected to the left end of the ventilation pipe 1, and a filter assembly 6 fixedly connected to the surface of the extension plate 5 by bolts.

[0031] The filter assembly 6 includes an extension plate 61, a V-shaped tube 62 fixedly connected to the left end of the extension plate 61, a slide rail 63 fixedly connected to the inner wall of the V-shaped tube 62, a slide bar 64 slidably connected inside the slide rail 63, a filter plate 65 fixedly connected to the bottom of the slide bar 64, a threaded rod 66 fixedly connected to the front of the V-shaped tube 62, a sealing plate 67 sleeved on the surface of the threaded rod 66, and a nut 68 threadedly connected to the surface of the sealing plate 67. Airflow enters the interior of the V-shaped tube 62 through the output end of the V-shaped tube 62, and is then filtered by the filter plate 65 inside the V-shaped tube 62 before entering the interior of the ventilation duct 1.

[0032] The wear-resistant coating 3 is made of polytetrafluoroethylene (PTFE). PTFE has excellent wear resistance, corrosion resistance, and a low coefficient of friction, which can significantly improve the wear resistance of the protective plate and further extend the service life of the ventilation device.

[0033] The surface of the inner plate 4 is in contact with the inner wall of the V-tube 62.

[0034] There are two slide rails 63, which are evenly distributed on the inner wall symmetrically around the center of the front of the filter plate 65.

[0035] The sealing plate 67 is located between the threaded rod 66 and the nut 68. The rear end of the sealing plate 67 is in contact with the surface of the filter plate 65. Through the cooperation of the sealing plate 67 and the nut 68, the filter plate can be firmly fixed in the V-tube 62, preventing the filter plate 65 from shifting or loosening due to airflow impact during operation.

[0036] The bottom of the V-shaped tube 62 is fixedly connected to a feeding platform 7, the bottom of the feeding platform 7 is fixedly connected to an external threaded sleeve 8, the surface of the external threaded sleeve 8 is threadedly connected to an internal threaded sleeve 9, and the bottom of the internal threaded sleeve 9 is fixedly connected to a handle 10.

[0037] The discharge platform 7 is located below the filter plate 65 and at the left end of the filter plate 65.

[0038] The implementation principle of the wear-resistant ventilation device in this embodiment is as follows: airflow enters from the left end of the ventilation duct 1, first passing through the filter assembly 6, which consists of a V-shaped tube 62 and a sliding filter plate 65. Impurities in the airflow are intercepted by the filter plate, and the cleaned airflow continues to pass through the ventilation duct. The filter plate 65 is connected to the V-shaped tube via a slide rail 63 and a slide bar 64, allowing for quick disassembly and replacement, and facilitating the cleaning of intercepted impurities. A protective plate 2 is fixed to the inner wall of the ventilation duct, and its surface is coated with a polytetrafluoroethylene wear-resistant coating 3, which can effectively reduce the wear of particulate matter in the airflow on the inner wall of the ventilation duct and extend the service life of the device.

[0039] The intercepted impurities fall into the discharge platform 7 located below the filter plate by gravity. The bottom of the discharge platform is threaded to the ventilation pipe through an external threaded sleeve 8 and an internal threaded sleeve 9, and is equipped with a handle 10 to facilitate the operator to periodically disassemble the discharge platform and clean the impurities inside.

[0040] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An abrasion resistant ventilation device, characterized by: The ventilation pipe (1) is provided with a protective plate (2) fixedly connected to the inner wall of the ventilation pipe (1), and a wear-resistant coating (3) is provided on the surface of the protective plate (2). An inner clamping plate (4) is fixedly connected to the inner wall of the ventilation pipe (1), and an extension plate (5) is fixedly connected to the left end of the ventilation pipe (1). A filter assembly (6) is fixedly connected to the surface of the extension plate (5) by bolts. The filter assembly (6) includes an extension plate two (61), a V-shaped tube (62) is fixedly connected to the left end of the extension plate two (61), a slide rail (63) is fixedly connected to the inner wall of the V-shaped tube (62), a slide bar (64) is slidably connected inside the slide rail (63), a filter plate (65) is fixedly connected to the bottom of the slide bar (64), a threaded rod (66) is fixedly connected to the front of the V-shaped tube (62), a sealing plate (67) is sleeved on the surface of the threaded rod (66), and a nut (68) is threadedly connected to the surface of the sealing plate (67).

2. A wear resistant ventilation device according to claim 1, characterized in that: The wear-resistant coating (3) is made of polytetrafluoroethylene.

3. A wear resistant venting device according to claim 1, wherein: The surface of the inner card plate (4) is in contact with the inner wall of the V-shaped tube (62).

4. A wear resistant venting device according to claim 1, wherein: The number of slide rails (63) is set to two, and the two slide rails (63) are evenly distributed on the inner wall with the center of the front of the filter plate (65) symmetrical.

5. A wear resistant venting device according to claim 1, wherein: The sealing plate (67) is located between the threaded rod (66) and the nut (68), and the rear end of the sealing plate (67) is in contact with the surface of the filter plate (65).

6. A wear resistant venting device according to claim 1, wherein: The bottom of the V-shaped tube (62) is fixedly connected to a feeding platform (7), the bottom of the feeding platform (7) is fixedly connected to an external threaded sleeve (8), the surface of the external threaded sleeve (8) is threadedly connected to an internal threaded sleeve (9), and the bottom of the internal threaded sleeve (9) is fixedly connected to a handle (10).

7. A wear resistant ventilation device according to claim 6, characterized in that: The unloading platform (7) is located below the filter plate (65) and at the left end of the filter plate (65).