Ventilation device for building walls
By designing detachable filter components and limiting chamber structures in the ventilation devices of building walls, the problem of inconvenient filter replacement is solved, achieving convenient filter replacement and effective air filtration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI LINGYUE ARCHITECTURAL DECORATION ENG CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-23
AI Technical Summary
Existing ventilation devices for building walls are not convenient for individual filter replacement, which limits their use.
A ventilation device including a chassis, a fan, a filter assembly, and a touch screen panel was designed. The filter assembly is detachable and can be easily replaced through a limiting cavity and a sealing cover. The U-shaped cover and support cylinder structure ensure the integrity of air filtration.
It enables easy disassembly and replacement of the filter, improving the flexibility and ease of use of the device and ensuring the effectiveness of air filtration.
Smart Images

Figure CN224397938U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building equipment, and in particular to a ventilation device for building walls. Background Technology
[0002] Building wall ventilation is a crucial aspect of building design, with the core purpose of optimizing indoor environmental quality, ensuring building structural safety, and improving energy efficiency.
[0003] However, existing ventilation devices for building walls are not convenient for replacing the filters individually during use, which presents certain limitations.
[0004] Therefore, it is essential to invent a ventilation device for building walls that allows for easy replacement of individual filters. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a ventilation device for building walls, including a casing, a fan fixedly installed inside the casing, a pipe fixedly installed on one side of the casing, a filter assembly fixedly installed in the casing and the pipe assembly through a sealing cover, the sealing cover being detachably fixedly connected to the front of the casing, the air inlet of the fan being sealed and connected to the filter assembly, and the air outlet of the fan being connected to the outside of the casing.
[0006] A touch screen panel is fixedly installed on the front of the chassis. The touch screen panel is electrically connected to the fan via the controller. The power cables of the fan, the touch screen panel and the controller protrude from one side of the chassis.
[0007] The chassis has a fan chamber and a limiting chamber inside. The fan chamber is below the limiting chamber, and the size of the limiting chamber is larger than the size of the fan chamber. The limiting chamber is connected to the fan chamber and the tube. The fan is fixedly installed in the fan chamber. The filter assembly is detachably fixedly installed in the limiting chamber and the tube. The filter assembly is connected to the fan chamber.
[0008] The front of the chassis has a sealing cavity, which is connected to the limiting cavity. The sealing cover is detachably and fixedly installed in the limiting cavity, and the sealing cover and the limiting cavity are sealed.
[0009] An air outlet is provided at the end of the chassis away from the tube, and the air outlet is connected to the fan cavity, which is located between the air outlet and the limiting cavity.
[0010] A filter plate is detachably and fixedly installed in the air outlet.
[0011] The inner side of the tube away from the casing is provided with a tapering end.
[0012] The filter assembly includes a U-shaped cover, a support cylinder, wire holes, and a filter cartridge. One side of the U-shaped cover is fixedly connected to one end of the support cylinder. Several wire holes are evenly distributed at the connection between the U-shaped cover and the support cylinder. One end of the filter cartridge extends into the support cylinder and is threadedly connected to the wire holes. The other end of the filter cartridge is flush with the outer end of the support cylinder. The U-shaped cover is detachably installed in the limiting cavity. The opening of the U-shaped cover communicates with the fan cavity. The support cylinder is detachably installed in the tube. The inner diameter of the support cylinder is the same as the inner diameter of the constriction opening.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] The overall design of this utility model allows for the individual disassembly and replacement of the filter components during use, making the entire system more convenient and flexible to use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall front structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the overall rear structure of this utility model.
[0017] Figure 3 This is a schematic diagram of the open structure of the filter plate of this utility model.
[0018] Figure 4 This is a schematic diagram of the overall partial cross-sectional structure of this utility model.
[0019] Figure 5 This is a schematic diagram of the overall exploded structure of this utility model.
[0020] Figure 6 This is a schematic diagram of the internal structure of the chassis of this utility model.
[0021] Figure 7 This is a schematic diagram of the filter assembly structure of this utility model.
[0022] In the picture:
[0023] 1. Chassis; 2. Pipe; 3. Fan chamber; 4. Limiting chamber; 5. Sealing chamber; 6. Air outlet; 7. Filter plate; 8. Closure; 9. Fan; 10. Sealing cover; 11. Power cord; 12. Touch screen panel; 13. U-shaped cover; 14. Support cylinder; 15. Wire hole; 16. Filter cartridge. Detailed Implementation
[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0025] The present invention will be further described below with reference to the accompanying drawings: Example:
[0026] As attached Figure 1 To be continued Figure 7 As shown:
[0027] This utility model provides a ventilation device for building walls, including a housing 1, a fan 9 fixedly installed inside the housing 1, and a pipe 2 fixedly installed on one side of the housing 1 so that the pipe 2 can be inserted into the ventilation hole of the wall to connect the interior and exterior of the building. A filter assembly is fixedly installed in the housing 1 and the pipe 2 through a sealing cover 10. The sealing cover 10 is detachably fixedly connected to the front of the housing 1. The air inlet of the fan 9 is sealed and connected to the filter assembly, and the air outlet of the fan 9 is connected to the outside of the housing 1 so that the fan 9 can draw air from outside the building into the building through the filter assembly for air exchange.
[0028] Specifically, a touch screen panel 12 is fixedly installed on the front of the chassis 1. The touch screen panel 12 is electrically connected to the fan 9 through the controller so that the operating parameters of the fan 9 can be set and adjusted through the touch screen panel 12. The power cord 11 of the fan 9, the touch screen panel 12 and the controller is exposed from one side of the chassis 1 so that the power cord 11 can be connected to the indoor power supply.
[0029] The controller uses a microcontroller.
[0030] Specifically, the casing 1 has a fan chamber 3 and a limiting chamber 4 inside. The fan chamber 3 is below the limiting chamber 4, and the size of the limiting chamber 4 is larger than the size of the fan chamber 3. The limiting chamber 4 is connected to the fan chamber 3 and the tube 2. The fan 9 is fixedly installed in the fan chamber 3. The filter assembly is detachably fixedly installed in the limiting chamber 4 and the tube 2. The filter assembly is connected to the fan chamber 3. This structure allows for easy disassembly and assembly of the filter assembly.
[0031] Specifically, a sealing cavity 5 is provided on the front of the chassis 1. The sealing cavity 5 is connected to the limiting cavity 4. The sealing cover 10 is installed in the limiting cavity 4 by bolts. The sealing cover 10 and the limiting cavity 4 are sealed. For example, a sealing gasket is added at the connection between the sealing cover 10 and the limiting cavity 4 to prevent air from entering from the sealing cavity 5.
[0032] Specifically, the end of the casing 1 away from the tube 2 is provided with an air outlet 6, which is connected to the fan chamber 3. The fan chamber 3 is located between the air outlet 6 and the limiting chamber 4. A filter plate 7 is installed in the air outlet 6 by bolts so that the air entering from the outside can be filtered again through the filter plate 7. At the same time, it is convenient to disassemble, clean or replace the filter plate 7 separately in the future.
[0033] Specifically, a constriction 8 is provided on the inner side of the end of the tube 2 away from the casing 1, and the inner diameter of the support tube 14 is the same as the inner diameter of the constriction 8, so as to ensure the sealing between the support tube 14 and the tube 2 and prevent outdoor air from being directly drawn into the room without being filtered by the filter tube 16.
[0034] Specifically, the filter assembly includes a U-shaped cover 13, a support cylinder 14, wire holes 15, and a filter cartridge 16. One side of the U-shaped cover 13 is fixedly connected to one end of the support cylinder 14. Several wire holes 15 are evenly provided at the connection between the U-shaped cover 13 and the support cylinder 14. One end of the filter cartridge 16 extends into the support cylinder 14 and is threadedly connected to the wire holes 15. The other end of the filter cartridge 16 is flush with the outer end of the support cylinder 14. The U-shaped cover 13 is detachably installed in the limiting cavity 4. The opening of the U-shaped cover 13 is connected to the fan cavity 3. The support cylinder 14 is detachably installed in the tube 2. The size of the opening of the U-shaped cover 13 is larger than the size of the fan cavity 3, so that the connection between the fan cavity 3 and the limiting cavity 4 can be fully covered by the U-shaped cover 13 to prevent air from entering the room without passing through the filter assembly.
[0035] It should be noted that the filter plate 7 and the filter cartridge 16 use existing technologies, such as activated carbon filter materials in the prior art.
[0036] In this embodiment, when in use, corresponding holes are made in the building wall to connect the interior and exterior of the building. Then, the pipe 2 is inserted into the hole so that the casing 1 is located inside the building. The space between the pipe 2 and the hole is filled with sealing material, such as concrete, to ensure the stability between the pipe 2 and the wall.
[0037] When the fan 9 is started, the air intake end of the fan 9 will draw in outdoor air from the building through the filter cartridge 16, and then discharge it into the room through the filter plate 7.
[0038] When the filter cartridge 16 needs to be cleaned and replaced later, simply remove the bolts between the sealing cover plate 10 and the limiting cavity 4, remove the sealing cover plate 10, and the filter assembly can be taken out from the housing 1 and the tube 2. Then, rotate the filter cartridge 16 counterclockwise to remove the filter cartridge 16.
[0039] When the filter plate 7 needs to be cleaned or replaced, simply remove the bolts between the filter plate 7 and the air outlet 6 to remove the filter plate 7.
[0040] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.
Claims
1. A ventilation device for building walls, characterized in that: Includes a chassis (1), in which a fan (9) is fixedly installed, and a tube (2) is fixedly installed on one side of the chassis (1). The filter assembly is fixedly installed in the chassis (1) and the tube (2) through a sealing cover (10). The sealing cover (10) is detachably fixedly connected to the front of the chassis (1). The air inlet of the fan (9) is sealed and connected to the filter assembly. The air outlet of the fan (9) is connected to the outside of the chassis (1). A touch screen panel (12) is fixedly installed on the front of the chassis (1). The touch screen panel (12) is electrically connected to the fan (9) through the controller. The power cord (11) of the fan (9), the touch screen panel (12) and the controller protrudes from one side of the chassis (1).
2. The ventilation device for building walls as described in claim 1, characterized in that: The chassis (1) has a fan chamber (3) and a limiting chamber (4) inside. The limiting chamber (4) is connected to the fan chamber (3) and the tube (2). The fan (9) is fixedly installed in the fan chamber (3). The filter assembly is detachably fixedly installed in the limiting chamber (4) and the tube (2). The filter assembly is connected to the fan chamber (3).
3. The ventilation device for building walls as described in claim 2, characterized in that: The front of the chassis (1) is provided with a sealing cavity (5), which is connected to the limiting cavity (4). The sealing cover (10) is detachably fixed in the limiting cavity (4), and the sealing cover (10) and the limiting cavity (4) are sealed.
4. The ventilation device for building walls as described in claim 3, characterized in that: The casing (1) has an air outlet (6) at the end away from the tube (2). The air outlet (6) is connected to the fan cavity (3). The fan cavity (3) is located between the air outlet (6) and the limiting cavity (4).
5. The ventilation device for building walls as described in claim 4, characterized in that: A filter plate (7) is detachably and fixedly installed in the air outlet (6).
6. The ventilation device for building walls as described in claim 1, characterized in that: The inner side of the tube (2) away from the casing (1) is provided with a constriction (8).
7. The ventilation device for building walls as described in claim 2, characterized in that: The filter assembly includes a U-shaped cover (13), a support cylinder (14), wire holes (15), and a filter cartridge (16). One side of the U-shaped cover (13) is fixedly connected to one end of the support cylinder (14). Several wire holes (15) are evenly provided at the connection between the U-shaped cover (13) and the support cylinder (14). One end of the filter cartridge (16) extends into the support cylinder (14) and is threadedly connected to the wire holes (15). The other end of the filter cartridge (16) is flush with the outer end of the support cylinder (14). The U-shaped cover (13) is detachably installed in the limiting cavity (4). The opening of the U-shaped cover (13) is connected to the fan cavity (3). The support cylinder (14) is detachably installed in the tube (2).