Fresh air ventilator with self-cleaning and filtering functions

Abstract

The utility model discloses a fresh air ventilator with self-cleaning and filtering functions, which comprises a shell, a fan and an air inlet channel are arranged in the shell, two air pipes are symmetrically communicated with two sides of the shell, a first filter screen and a second filter screen are symmetrically arranged in the shell, a motor is arranged on the inner wall of the top of the shell, and a filter screen is arranged on the inner wall of the top of the shell. A rotating shaft of the motor is fixedly connected with a threaded rod, the outer wall of the threaded rod is in threaded connection with a movable block, rotating rollers are rotationally installed on the two sides of the movable block, and first brushes are installed on the outer walls of the rotating rollers; the motor drives the movable block to move, the first brush and the second brush are arranged on the two sides of the movable block, bristles of the first brush are thin, bristles of the second brush are thick, rough cleaning and secondary cleaning are conducted on the first filter screen and the second filter screen respectively, the cleaning effect is improved, the self-cleaning function of the filter screen of the fresh air ventilator is achieved, and the service life of the filter screen is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air fans, in particular to a fresh air fan with self-cleaning filtration. Background Art

[0002] A fresh air fan is a device used to improve indoor air quality. It maintains good air circulation by introducing fresh air from outdoors and expelling polluted air from indoors. Among them, common fresh air fans on the market are usually equipped with air filtration mechanisms, which can efficiently filter dust, pollen, PM2.5 and other pollutants in the air, ensuring that the indoor air is clean and fresh, and improving air circulation. It is suitable for homes, offices and other places, providing a comfortable and healthy breathing environment.

[0003] However, traditional fresh air fan filter cleaning usually requires manual disassembly and cleaning, which is cumbersome and time-consuming. In addition, the filter is often cleaned by brushing, using only a single type of bristles, and the cleaning effect is limited, especially for dust or dirt of different particle sizes. A single brush cannot handle coarse particles and fine dust at the same time, resulting in incomplete cleaning and residual dirt on the filter, affecting the filtering performance. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, one purpose of the present invention is to propose a fresh air fan with self-cleaning filtration. The fresh air fan with self-cleaning filtration can drive the movable block to move by a motor, driving the first brush and the second brush to perform rough cleaning and secondary cleaning of the first filter and the second filter respectively, thereby improving the cleaning effect, realizing the self-cleaning function of the fresh air fan filter, and extending the life of the filter.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a fresh air fan with self-cleaning filtration, comprising a shell, a fan and an air inlet channel installed inside the shell, a first filter screen and a second filter screen symmetrically installed inside the shell, a motor installed on the top inner wall of the shell, a rotating shaft of the motor fixedly connected to a threaded rod, an outer wall of the threaded rod threadedly connected to a movable block, rollers are rotatably installed on both sides of the movable block, a first brush is installed on the outer wall of the roller, a second brush is installed on both sides of the movable block, the first brush and the second brush are both attached to adjacent sides of the first filter screen and the second filter screen, and the bristle diameter of the first brush is smaller than the bristle diameter of the second brush.

[0007] Preferably, the first filter is a primary filter, and the second filter is a medium-efficiency filter.

[0008] Preferably, two air ducts are symmetrically connected on both sides of the shell.

[0009] Preferably, a discharge trough is provided at the bottom of the housing.

[0010] Preferably, a support plate is fixedly connected to the inner wall of the shell, and one end of the bottom of the threaded rod is mounted on the top of the support plate through a bearing.

[0011] Preferably, a collection box is slidably mounted on the bottom of the discharge trough, and the collection box is located at the bottom of the discharge trough.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention drives the movable block to move by a motor, and a first brush and a second brush are provided on both sides of the movable block. The bristles of the first brush are finer, and the bristles of the second brush are coarser, which respectively perform rough cleaning and secondary cleaning on the first filter screen and the second filter screen, thereby improving the cleaning effect, realizing the self-cleaning function of the fresh air fan filter screen, and extending the life of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of a fresh air blower with self-cleaning filtration according to an embodiment of the present invention;

[0014] Figure 2 This is a schematic cross-sectional view of a fresh air blower with self-cleaning filtration according to an embodiment of the present invention;

[0015] Figure 3 For the embodiment of the utility model Figure 2 Schematic diagram of the enlarged structure of part A;

[0016] Figure 4 For the embodiment of the utility model Figure 2 Schematic diagram of the enlarged structure of part B.

[0017] In the figure: 1. Housing; 2. Air duct; 3. Fan; 4. Air inlet channel; 5. First filter; 6. Second filter; 7. Motor; 8. Threaded rod; 9. Movable block; 10. Roller; 11. First brush; 12. Second brush; 13. Discharge trough; 14. Collection box; 15. Support plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 2 An embodiment of the present utility model provides a fresh air fan with self-cleaning filtration, comprising: a housing 1, a fan 3 and an air inlet channel 4.

[0020] Among them, such as Figure 1 and Figure 3 As shown, the air inlet channel 4 and the fan 3 are installed inside the shell 1, and the first filter 5 and the second filter 6 are symmetrically installed inside the shell 1. Two air ducts 2 are symmetrically connected on both sides of the shell 1. One end of the air inlet channel 4 is connected to the air outlet of the fan 3. The first filter 5 and the second filter 6 are both located at the end of the air inlet channel 4 away from the fan 3. The fan 3 draws outdoor and indoor air into the air inlet channel 4 inside the shell 1, and filters the gas after passing through the first filter 5 and the second filter 6, and then exchanges and discharges it to the indoor and outdoor through the air duct 2.

[0021] Furthermore, the first filter 5 is a primary filter, and the second filter 6 is a medium-efficiency filter, which can intercept and filter larger impurities and fine dust particles in the gas entering the interior of the housing 1.

[0022] In this embodiment, Figures 1-4 As shown, a motor 7 is installed on the top inner wall of the shell 1, and the rotating shaft of the motor 7 is fixedly connected to a threaded rod 8. The outer wall of the threaded rod 8 is threadedly connected to a movable block 9. Rollers 10 are rotatably installed on both sides of the movable block 9. A first brush 11 is installed on the outer wall of the roller 10. A second brush 12 is installed on both sides of the movable block 9. The first brush 11 and the second brush 12 are both attached to the adjacent sides of the first filter 5 and the second filter 6.

[0023] It should be noted that the bristle diameter of the first brush 11 is smaller than the bristle diameter of the second brush 12 .

[0024] During use, the threaded rod 8 is driven to rotate by the motor 7, and the threaded rod 8 is threadedly connected to the movable block 9, so that the movable block 9 moves along the threaded rod 8. A first brush 11 and a second brush 12 are respectively provided on both sides of the movable block 9, wherein the bristle diameter of the first brush 11 is smaller than the bristle diameter of the second brush 12. When the movable block 9 moves, the second brush 12 with a larger bristle diameter can perform a rough cleaning of the first filter 5 and the second filter 6, while the first brush 11 with a smaller bristle diameter on the roller 10 can perform a secondary cleaning process.

[0025] Further, refer to Figure 4 The inner wall of the shell 1 is fixedly connected with a support plate 15, and the bottom end of the threaded rod 8 is installed on the top of the support plate 15 through a bearing. The support plate 15 can support and stabilize the bottom end of the threaded rod 8.

[0026] like Figure 4As shown, a discharge groove 13 is provided at the bottom of the shell 1, and a collection box 14 is slidably installed at the bottom of the discharge groove 13. The collection box 14 is located at the bottom of the discharge groove 13. When the first filter 5 and the second filter 6 are cleaned, the falling dust and debris can enter the collection box 14 through the discharge groove 13. The operator completes the removal or installation operation of the box body by pulling the collection box 14.

[0027] According to the above technical solution, the working steps of this solution are summarized and sorted out: when the utility model is used, the motor 7 drives the threaded rod 8 to rotate, and the threaded rod 8 is threadedly connected to the movable block 9, so that the movable block 9 moves along the threaded rod 8.

[0028] Among them, a first brush 11 and a second brush 12 are respectively provided on both sides of the movable block 9, wherein the bristle diameter of the first brush 11 is smaller than the bristle diameter of the second brush 12. When the movable block 9 moves, the second brush 12 with a larger bristle diameter can perform a rough cleaning of the first filter 5 and the second filter 6. At the same time, the first brush 11 with a smaller bristle diameter on the roller 10 can perform a secondary cleaning process. Compared with a brush with a single bristle diameter, the cleaning effect is improved, and the self-cleaning function of the fresh air fan filter is realized, thereby maintaining the smoothness of the air circulation of the fresh air fan and extending the service life of the filter.

[0029] Any portion not described in the present invention is the same as the prior art or can be implemented using the prior art. Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fresh air blower with self-cleaning filtration, comprising a housing (1), a blower (3) and an air inlet channel (4) installed inside the housing (1), characterized in that: A first filter (5) and a second filter (6) are symmetrically mounted inside the housing (1); a motor (7) is mounted on the top inner wall of the housing (1); a rotating shaft of the motor (7) is fixedly connected to a threaded rod (8); an outer wall of the threaded rod (8) is threadedly connected to a movable block (9); rollers (10) are rotatably mounted on both sides of the movable block (9); a first brush (11) is mounted on the outer wall of the roller (10); a second brush (12) is mounted on both sides of the movable block (9); the first brush (11) and the second brush (12) are both attached to adjacent sides of the first filter (5) and the second filter (6); the bristle diameter of the first brush (11) is smaller than the bristle diameter of the second brush (12).

2. The fresh air blower with self-cleaning filtration according to claim 1, characterized in that: The first filter screen (5) is a primary filter screen, and the second filter screen (6) is a medium-efficiency filter screen.

3. The fresh air blower with self-cleaning filtration according to claim 1, characterized in that: Two air ducts (2) are symmetrically connected on both sides of the housing (1).

4. The fresh air blower with self-cleaning filtration according to claim 1, characterized in that: A discharge trough (13) is provided at the bottom of the housing (1).

5. The fresh air blower with self-cleaning filtration according to claim 1, characterized in that: A support plate (15) is fixedly connected to the inner wall of the housing (1), and one end of the bottom of the threaded rod (8) is mounted on the top of the support plate (15) via a bearing.

6. The fresh air blower with self-cleaning filtration according to claim 4, characterized in that: A collection box (14) is slidably mounted on the bottom of the discharge trough (13), and the collection box (14) is located at the bottom of the discharge trough (13).

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