Air filter convenient to clean

Abstract

The utility model discloses an air filter convenient to clean, relates to the technical field of air filters, and aims to solve the problems of complicated filter element replacement work and higher cost of an air filter in the prior art. The air filter comprises a shell, an exhaust bin, a bottom cover and an impeller, a filter element is vertically mounted in the shell, and the exhaust bin is arranged at the top of the shell; the bottom cover is connected with a flange at the bottom of the shell, an inner dirt removal opening is formed in the bottom cover, the bottom of the bottom cover is rotationally connected with a screw cover, and the motor drives the impeller to blow air to the outside of the filter element. The motor at the top drives the impeller to blow air to the outside of the filter element, so that reverse flow of airflow is realized, and the surface of the filter element is blown; impurities and dirt deposited on the surface of the filter element can be conveniently removed from the inside, the optimal filtering efficiency is maintained, the filter element does not need to be frequently replaced, the maintenance cost is reduced, a smooth filtering channel is favorably kept for the filter element, the maintenance period and the maintenance cost are effectively controlled, and the filtering requirement of the air filter is met.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, in particular to an air filter which is easy to clean. Background Art

[0002] An air filter is a device that captures dust from gas-solid two-phase flow and purifies the gas through the action of porous filter materials. The purpose of an air filter is to obtain clean air that meets the standards to meet the needs of related equipment operation in production or the requirements of a high-quality living environment in life.

[0003] After the air filter has been running for a long time, the outer wall of the filter element will absorb a lot of impurities and dirt, resulting in a decrease in the filtering effect. Although existing air filters are generally designed to be easy to disassemble, replacing the filter element still brings tedious work, and frequent replacement of the filter element will also increase the cost of use.

[0004] Therefore, the present application provides an air filter that is easy to clean to meet the needs. Utility Model Content

[0005] The purpose of the present application is to provide an air filter that is easy to clean, so as to facilitate cleaning of the cylindrical filter element, discharge impurities from the air filter, and extend the service life of the filter element.

[0006] To achieve the above objectives, the present application provides the following technical solution: an air filter that is easy to clean, comprising:

[0007] A housing, wherein an air inlet pipe is provided on a side wall of the housing, an air inlet valve is provided on the air inlet pipe, a filter element is vertically installed in the housing, and the filter element is cylindrical, and the bottom of the housing is transparent;

[0008] An exhaust chamber, the exhaust chamber is located at the top of the shell and is connected to the shell, the exhaust chamber corresponds to the inner periphery of the filter element, an exhaust pipe and a ventilation pipe are provided on the side wall of the exhaust chamber, an exhaust valve is provided on the exhaust pipe, a ventilation valve is provided on the ventilation pipe, and a motor is provided on the top of the exhaust chamber;

[0009] A bottom cover connected to the bottom flange of the housing, provided with a tray for supporting the filter element to seal the bottom of the filter element, provided with an internal decontamination port, and rotatably connected to a rotary cover at the bottom of the bottom cover for opening and closing the internal decontamination port;

[0010] An impeller is installed in the inner periphery of the filter element, the motor drives the impeller, and the impeller blows air toward the outside of the filter element.

[0011] Preferably, the air inlet valve, the air outlet valve and the vent valve are all solenoid valves.

[0012] Preferably, the impeller matches the size of the filter element, a rotating shaft passes through the impeller, a bracket is provided at the bottom of the exhaust bin, the rotating shaft is rotatably connected to the bracket, and the top end of the rotating shaft is connected to the output end of the motor.

[0013] Preferably, wheel racks are arrayed on the rotating shaft, blades are provided between adjacent wheel racks, and the blades are provided in multiple groups and are evenly arrayed on the edges of the wheel racks.

[0014] Preferably, a positioning plug is provided on the tray, and the positioning plug is adapted to the inner circumference of the filter element. The top end of the positioning plug is truncated cone-shaped so as to align with the filter cartridge for installation. The top surface of the positioning plug is provided with a rotating groove, and the rotating groove is adapted to the bottom end of the rotating shaft.

[0015] Preferably, there are three groups of internal dirt removal ports in a circular array, the area of the internal dirt removal ports is smaller than the area of the bottom cover between adjacent internal dirt removal ports, the top surface of the bottom cover is provided with pillars, there are three groups of pillars evenly distributed between adjacent internal dirt removal ports, and the top ends of the pillars are connected to the tray.

[0016] Preferably, the rotary cover is provided with external dirt removal openings in a uniform annular array, the external dirt removal openings are matched with the internal dirt removal openings, and the rotation of the rotary cover can change the opening and closing state of the internal dirt removal openings.

[0017] Preferably, a shift bar is provided at the bottom of the rotary cover, and the shift bars are provided in three groups and are arranged in a circular array along the radial direction of the rotary cover so as to rotate the rotary cover.

[0018] In summary, the technical effects and advantages of the utility model are:

[0019] The utility model provides an air filter improvement technology, the core of which lies in efficient and convenient filtration and maintaining air purity while reducing the frequency and cost of filter element replacement, striving to maintain high-quality air purification effect. The filter body drives the impeller to blow air to the outside of the filter element through the motor on the top, realizing reverse flow of airflow and sweeping the surface of the filter element, so as to facilitate regular removal of impurities and dirt deposited on the surface of the filter element from the inside, maintain its optimal filtration efficiency, eliminate the need for frequent filter element replacement, reduce maintenance costs, and help the filter element maintain a smooth filtration channel, effectively control maintenance cycles and costs, and meet the filtration needs of the air filter.

[0020] The utility model is to match the outer dirt removal openings distributed in an annular manner on the rotary cover with the inner dirt removal openings on the bottom cover. By rotating the rotary cover, the opening and closing states of the inner dirt removal openings can be flexibly changed, making it easy to open the inner dirt removal openings to efficiently discharge impurities and dirt, thereby avoiding the tedious work and high cost burden caused by replacing the filter element of the traditional air filter and improving the efficiency of cleaning the air filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

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

[0023] Figure 2 This is a left-side structural schematic diagram of the present utility model;

[0024] Figure 3 This is a schematic diagram of the AA cross-sectional structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the bottom cover structure of the utility model;

[0026] Figure 5 This is a schematic diagram of the screw cap structure of the utility model;

[0027] Figure 6 This is a schematic diagram of the impeller structure of the utility model.

[0028] In the figure: 1. Outer casing; 2. Exhaust chamber; 3. Bottom cover; 4. Motor; 5. Screw cap; 6. Impeller; 7. Filter element; 10. Inlet pipe; 11. Inlet valve; 20. Outlet pipe; 21. Vent pipe; 22. Outlet valve; 23. Vent valve; 30. Internal decontamination port; 31. Support; 32. Tray; 33. Positioning plug; 34. Rotating groove; 50. External decontamination port; 51. Diverter bar; 60. Wheel frame; 61. Rotating shaft; 62. Blade. DETAILED DESCRIPTION

[0029] 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.

[0030] Example: Reference Figure 1-6 An air filter that is easy to clean is shown, comprising:

[0031] The housing 1 has an air inlet pipe 10 on its side wall, an air inlet valve 11 on the air inlet pipe 10, a filter element 7 vertically installed in the housing 1, and the filter element 7 is cylindrical. The bottom of the housing 1 is transparent;

[0032] The exhaust chamber 2 is located at the top of the housing 1 and is connected to the housing 1. The exhaust chamber 2 corresponds to the inner periphery of the filter element 7. An outlet pipe 20 and a vent pipe 21 are provided on the side wall of the exhaust chamber 2. The outlet pipe 20 is provided with an outlet valve 22, and the vent pipe 21 is provided with a vent valve 23. A motor 4 is provided on the top of the exhaust chamber 2;

[0033] The bottom cover 3 is connected to the bottom flange of the housing 1. The bottom cover 3 is provided with a tray 32 for supporting the filter element 7. The bottom cover 3 is provided with an internal dirt removal port 30. The bottom of the bottom cover 3 is rotatably connected to a rotary cover 5 for opening and closing the internal dirt removal port 30.

[0034] The impeller 6 is installed in the inner periphery of the filter element 7. The motor 4 drives the impeller 6, and the impeller 6 blows air toward the outside of the filter element 7.

[0035] As an implementation method in this embodiment, for the convenience of automatic control, Figures 1 to 3 As shown, the air inlet valve 11, the air outlet valve 22 and the vent valve 23 are all solenoid valves.

[0036] As an implementation method in this embodiment, in order to enhance the cleaning and decontamination effect, Figure 3 As shown, the impeller 6 is adapted to the filter element 7 , a rotating shaft 61 passes through the impeller 6 , a bracket is provided at the bottom of the exhaust chamber 2 , the rotating shaft 61 is rotatably connected to the bracket, and the top end of the rotating shaft 61 is connected to the output end of the motor 4 .

[0037] As an implementation method in this embodiment, in order to enhance the structural stability of the impeller 6, as shown in FIG. Figure 6 As shown, wheel racks 60 are arrayed on the rotating shaft 61 , and blades 62 are provided between adjacent wheel racks 60 . There are multiple groups of blades 62 that are evenly arrayed on the edge of the wheel rack 60 .

[0038] As an implementation method in this embodiment, in order to facilitate the assembly of the filter element 7 and the impeller 6 on the bottom cover 3, as shown in FIG. Figure 3 、 Figure 4 As shown, a positioning plug 33 is provided on the tray 32, and the positioning plug 33 is adapted to the inner periphery of the filter element 7. The top end of the positioning plug 33 is truncated cone-shaped, and a rotation groove 34 is provided on the top surface of the positioning plug 33, and the rotation groove 34 is adapted to the bottom end of the rotating shaft 61.

[0039] As an implementation method in this embodiment, in order to support the tray 32, as shown in FIG. Figure 4As shown, there are three groups of internal dirt removal ports 30 in a circular array. The area of the internal dirt removal ports 30 is smaller than the area of the bottom cover 3 between adjacent internal dirt removal ports 30. The top surface of the bottom cover 3 is provided with pillars 31. There are three groups of pillars 31 and they are evenly distributed between adjacent internal dirt removal ports 30. The top of the pillars 31 is connected to the tray 32.

[0040] As an implementation method in this embodiment, in order to realize the opening and closing of the inner dirt removal port 30 by the rotary cover 5, as shown in FIG. Figure 5 As shown, the rotary cover 5 has outer dirt removal openings 50 arranged in a uniform annular array. The outer dirt removal openings 50 match the inner dirt removal openings 30 . The inner dirt removal openings 30 can be opened or closed by rotating the rotary cover 5 .

[0041] As an implementation method in this embodiment, in order to facilitate the rotation of the rotary cover 5, as shown in FIG. Figure 5 As shown, a shift bar 51 is provided at the bottom of the rotary cover 5 , and there are three groups of shift bars 51 arranged in a circular array along the radial direction of the rotary cover 5 .

[0042] Working principle of this utility model: when the air filter is working normally, the air inlet valve 11 and the air outlet valve 22 are opened, the vent valve 23 is closed, the outer dirt removal port 50 on the rotary cover 5 is misaligned with the inner dirt removal port 30 on the bottom cover 3, the inner dirt removal port 30 is closed, and the air to be filtered enters the housing 1 from the air inlet pipe 10. Since the bottom of the filter element 7 is supported and blocked by the tray 32, the air will be filtered by the filter element 7 and enter the inner periphery of the filter element 7. The impurities and dirt in the air are adsorbed on the outside of the filter element 7. The filtered air enters the exhaust bin 2 and then exits from the exhaust bin 2. The air is discharged from the outlet pipe 20. As the air filter is used for a longer time, more impurities and dirt are adsorbed on the filter element 7, and the filtering effect of the air filter is reduced. At this time, the air filter is cleaned, the air inlet valve 11 and the air outlet valve 22 are closed, the vent valve 23 is opened, and the rotary cover 5 is rotated using the dial 51 to align the outer dirt removal port 50 with the inner dirt removal port 30 to open the inner dirt removal port 30. Then, the motor 4 is started to drive the impeller 6 to rotate through the rotating shaft 61. The multiple wheel frames 60 can enhance the stability of the blades 62. The wheel 6 drives the blades 62 to rotate, sucking air from the vent pipe 21 and discharging it to the surroundings after passing through the exhaust chamber 2. When the air discharged to the surroundings by the impeller 6 passes through the filter element 7, the impurities and dirt adhering to the outside of the filter element 7 are blown off, and then the impurities and dirt are discharged from the internal decontamination port 30 with the air flow, thereby cleaning the filter element 7. After cleaning, rotate the rotary cover 5 again to close the internal decontamination port 30, close the vent valve 23, open the air inlet valve 11 and the air outlet valve 22, and the air filter can work normally again; if the filter needs to be replaced, When replacing the filter element 7, the bottom cover 3 is removed, and the filter element 7 is supported by the tray 32 and falls down. Then the old filter element 7 is removed from the positioning plug 33 and replaced with a new filter element 7. Then the bottom cover 3 is installed to the bottom of the housing 1. At this time, the pillar 31 supports the tray 32, the tray 32 supports the filter element 7, the positioning plug 33 positions the filter element 7, and the tray 32 and the top of the housing 1 clamp and fix the filter element 7, thereby completing the replacement of the filter element 7. During this process, the bottom end of the rotating shaft 61 is inserted into the rotating groove 34, and the rotating shaft 61 is positioned from the bottom.

[0043] The electromechanical connection involved in the present invention is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, which belongs to common knowledge.

[0044] Components not described in detail herein are prior art.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An air filter that is easy to clean, characterized in that: include: A housing (1), an air inlet pipe (10) is provided on a side wall of the housing (1), an air inlet valve (11) is provided on the air inlet pipe (10), a filter element (7) is vertically installed in the housing (1), the filter element (7) is cylindrical, and the bottom of the housing (1) is transparent; An exhaust bin (2), the exhaust bin (2) being located at the top of the housing (1) and being in communication with the housing (1), the exhaust bin (2) corresponding to the inner periphery of the filter element (7), an air outlet pipe (20) and a vent pipe (21) being provided on the side wall of the exhaust bin (2), an air outlet valve (22) being provided on the air outlet pipe (20), a vent valve (23) being provided on the vent pipe (21), and a motor (4) being provided on the top of the exhaust bin (2); A bottom cover (3), the bottom cover (3) being connected to the bottom flange of the housing (1), the bottom cover (3) being provided with a tray (32), the tray (32) being used to support the filter element (7), the bottom cover (3) being provided with an internal dirt removal port (30), the bottom of the bottom cover (3) being rotatably connected to a rotary cover (5), the rotary cover (5) being used to open and close the internal dirt removal port (30); An impeller (6) is installed in the inner periphery of the filter element (7), the motor (4) drives the impeller (6), and the impeller (6) blows air toward the outside of the filter element (7).

2. The easy-to-clean air filter according to claim 1, characterized in that: The air inlet valve (11), the air outlet valve (22) and the vent valve (23) are all solenoid valves.

3. The easy-to-clean air filter according to claim 1, characterized in that: The impeller (6) and the filter element (7) are matched in size. A rotating shaft (61) runs through the impeller (6). A bracket is provided at the bottom of the exhaust chamber (2). The rotating shaft (61) is rotatably connected to the bracket. The top end of the rotating shaft (61) is connected to the output end of the motor (4).

4. The easy-to-clean air filter according to claim 3, characterized in that: Wheel racks (60) are arranged in an array on the rotating shaft (61), and blades (62) are provided between adjacent wheel racks (60). The blades (62) are provided in multiple groups and are evenly arrayed on the edge of the wheel rack (60).

5. The easy-to-clean air filter according to claim 3, characterized in that: A positioning plug (33) is provided on the tray (32), and the positioning plug (33) is adapted to the inner periphery of the filter element (7). The top end of the positioning plug (33) is truncated, and a rotation groove (34) is provided on the top surface of the positioning plug (33), and the rotation groove (34) is adapted to the bottom end of the rotating shaft (61).

6. The easy-to-clean air filter according to claim 1, characterized in that: The inner dirt removal openings (30) are in three groups and form a circular array. The area of the inner dirt removal openings (30) is smaller than the area of the bottom cover (3) between adjacent inner dirt removal openings (30). The top surface of the bottom cover (3) is provided with pillars (31). The pillars (31) are in three groups and are evenly distributed between adjacent inner dirt removal openings (30). The top ends of the pillars (31) are connected to the tray (32).

7. The easy-to-clean air filter according to claim 6, characterized in that: The rotary cover (5) has external dirt removal openings (50) arranged in a uniform annular array. The external dirt removal openings (50) are adapted to the internal dirt removal openings (30). The rotation of the rotary cover (5) can change the open and closed state of the internal dirt removal openings (30).

8. The easy-to-clean air filter according to claim 7, characterized in that: The bottom of the rotary cover (5) is provided with a shift bar (51), and the shift bars (51) are provided in three groups and are arranged in a circular array along the radial direction of the rotary cover (5).

Images