Air purification device

Abstract

The utility model provides an air purification device. The air purification device comprises a filter screen, a driving mechanism and a cleaning mechanism, wherein the driving mechanism is in transmission connection with the filter screen so as to drive the filter screen to rotate. The cleaning mechanism is installed on the outer side of the filter screen and is configured to clean the outer side wall of the filter screen when the filter screen rotates. According to the air purification device, when substances such as hair deposited on the filter screen need to be cleaned, the driving mechanism drives the filter screen to rotate, and the filter screen moves relative to the cleaning mechanism, so that the cleaning mechanism can clean the substances such as the hair deposited on the outer side wall of the filter screen in time, and the air purification efficiency can be improved under the condition that the purification effect of the whole machine is not affected. Substances such as hair on the outer side wall of the filter screen are cleaned regularly, so that the risk of secondary pollution caused by the substances such as the hair is reduced, and the service lives of the air purification device and the filter screen are prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification, in particular to an air purification device. Background Art

[0002] In recent years, cute and curable pets have become increasingly popular among young people, and the number of pet-raising families has been increasing continuously, with the families raising cats and dogs being the most numerous. However, the problems brought by raising pets have also begun to emerge. For example, pet hair is very easy to shed, and the shed pet hair carries bacteria and allergens, some of which will float in various corners of the room, and some will be suspended in the air, affecting the quality of life. Although a purifier is used for treatment, the hair is adsorbed by the purifier onto the surface of the filter screen. After the filter screen is used for a long time, the substances such as hair deposited on the surface of the filter screen will not only affect the purification effect of the whole machine and the service life of the filter screen, but also easily cause secondary pollution to the indoor environment. Content of the Utility Model

[0003] Based on this, it is necessary to provide an air purification device for the above problems.

[0004] Its technical solution is as follows:

[0005] On the one hand, an air purification device is provided, including:

[0006] A filter screen;

[0007] A driving mechanism, which is in transmission connection with the filter screen to drive the filter screen to rotate;

[0008] A cleaning mechanism, which is installed on the outer side of the filter screen and is configured to clean the outer side wall of the filter screen when the filter screen rotates.

[0009] For the air purification device in the above embodiment, when it is necessary to clean the substances such as hair deposited on the filter screen, the driving mechanism drives the filter screen to rotate, and the filter screen moves relative to the cleaning mechanism, so that the cleaning mechanism can timely clean the substances such as hair deposited on the outer side wall of the filter screen. Without affecting the purification effect of the whole machine, the outer side wall of the filter screen can be regularly and timed cleaned of the substances such as hair, which not only reduces the risk of secondary pollution caused by the substances such as hair, but also improves the service life of the air purification device and the filter screen.

[0010] The technical solution is further described below:

[0011] In one of the embodiments, the air purification device further includes a base and a runner rotatably matched with the base, the filter screen is fixedly installed on the runner, and the driving mechanism is in transmission connection with the runner.

[0012] In one embodiment, a first annular flange and a second annular flange are coaxially provided on a side of the runner away from the filter screen. The first annular flange is rotatably connected to the base. The second annular flange is spaced outside the first annular flange. An internal tooth portion is provided on an inner side wall of the second annular flange. The driving mechanism includes a first motor and a first gear drivingly connected to the first motor. The first gear is located between the first annular flange and the second annular flange and meshes with the internal tooth portion.

[0013] In one embodiment, the cleaning mechanism includes a collecting member. The collecting member is fixed to an outer side of the filter screen and forms a collecting cavity with a collecting opening with an outer side wall of the filter screen. The collecting opening is located at a rear side of the collecting cavity along a rotation direction of the filter screen.

[0014] In one embodiment, the collecting member is provided with a first blocking rib and a second blocking rib both extending along an axial direction of the filter screen. The first blocking rib is spaced at a rear side of the second blocking rib along the rotation direction of the filter screen and forms the collecting opening with a space from the outer side wall of the filter screen. The second blocking rib is in interference fit with the outer side wall of the filter screen. The first blocking rib, the second blocking rib, the outer side wall of the filter screen and the collecting member enclose to form the collecting cavity.

[0015] In one embodiment, at least one insertion hole communicating with the collecting cavity is provided on a side of the collecting member away from the filter screen. The cleaning mechanism further includes a movable member. The movable member is provided with at least one blocking portion. Each of the blocking portions is in plug-in fit with each of the insertion holes. The movable member and the collecting member are in moving fit along a radial direction of the filter screen so that each of the blocking portions can move out of or into the collecting cavity.

[0016] In one embodiment, a first abutting portion is further provided on an outer side wall of the filter screen. The movable member is further provided with a second abutting portion abutting against the first abutting portion. The cleaning mechanism further includes an elastic member. The elastic member is configured to be compressed when the first abutting portion abuts against the second abutting portion so that each of the blocking portions moves out of the collecting cavity, and to reset when the abutting fit between the first abutting portion and the second abutting portion is released so that each of the blocking portions moves into the collecting cavity.

[0017] In one embodiment, the cleaning mechanism further includes an abutting member. The abutting member is fixed to a side of the collecting member away from the filter screen and forms a movable cavity with the collecting member. The movable member is movably installed in the movable cavity. The number of the elastic members is at least one, and each of the elastic members is installed between the movable member and the abutting member.

[0018] In one embodiment, the movable cavity extends along the axial direction of the filter screen, the movable member is disposed through the movable cavity, and two ends of the movable member are respectively provided with the second abutting portion and the third abutting portion. The air purification device further includes a runner for fixedly mounting the filter screen. The first abutting portion is disposed on an outer sidewall of the filter screen and at an end far from the runner. A fourth abutting portion is provided on an outer sidewall of the runner. The fourth abutting portion is located on one side of the first abutting portion along the axial direction of the filter screen and abuts against the third abutting portion in a mating manner.

[0019] In one embodiment, the air purification device further includes a dust collection box and a collection mechanism. The dust collection box is located below the collection cavity, and the collection mechanism is located above the collection cavity and is configured to push the substances in the collection cavity into the dust collection box when each of the blocking portions moves out of the collection cavity.

[0020] In one embodiment, the collection mechanism includes a driving assembly and a pushing member. The pushing member extends into the collection cavity from a top of the collection cavity. The driving assembly is in transmission connection with the pushing member, so that when each of the blocking portions moves out of the collection cavity, the pushing member can move along the axial direction of the filter screen to push the substances in the collection cavity into the dust collection box.

[0021] In one embodiment, the pushing member is configured as a push rod. An outer sidewall of the push rod is provided with an external thread. The driving assembly includes a second motor, a second gear and a third gear. The second motor is in transmission connection with the second gear. The second gear meshes with the third gear. The third gear is provided with a central hole, and an inner sidewall of the central hole is provided with an internal thread that is in threaded cooperation with the external thread. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and the descriptions thereof are used to explain this application and do not constitute an improper limitation to this application.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 FIG. is an exploded view of an air purification device according to an embodiment.

[0025] Figure 2 is Figure 1 a schematic structural view of the filter screen in

[0026] Figure 3 is Figure 1 a schematic structural view of the runner in

[0027] Figure 4 is Figure 1 a radial cross-sectional view of the air purification device of

[0028] Figure 5 is Figure 4 a partial enlarged view of part A in

[0029] Figure 6 is Figure 1 an axial cross-sectional view of the air purification device of

[0030] Figure 7 is Figure 6 a partial enlarged view of part B in

[0031] Figure 8 is Figure 4 a schematic structural view of the air purification device of from another perspective.

[0032] Explanation of reference numerals:

[0033] 10. Air purification device; 100. Filter screen; 111. First abutting part; 200. Driving mechanism; 211. First motor; 212. First gear; 300. Cleaning mechanism; 310. Collection member; 311. First blocking rib; 312. Second blocking rib; 313. Insertion hole; 320. Collection cavity; 330. Movable member; 331. Blocking part; 332. Second abutting part; 333. Third abutting part; 340. Elastic member; 350. Abutting member; 360. Movable cavity; 400. Base; 500. Runner; 511. First annular flange; 512. Second annular flange; 513. Internal tooth part; 514. Fourth abutting part; 600. Dust collection box; 700. Collection mechanism; 710. Driving assembly; 711. Second motor; 712. Second gear; 713. Third gear; 721. Pushing member; 800. Upper cover. Detailed implementation manners

[0034] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0035] As Figure 1As shown, in one embodiment, an air purification device 10 is provided, comprising a filter 100, a driving mechanism 200 and a cleaning mechanism 300. The driving mechanism 200 is connected to the filter 100 in a transmission manner to drive the filter 100 to rotate. The cleaning mechanism 300 is installed on the outside of the filter 100 and is configured to clean the outer wall of the filter 100 when the filter 100 rotates.

[0036] In the air purification device 10 in the above embodiment, when it is necessary to clean the hair and other substances deposited on the filter 100, the driving mechanism 200 drives the filter 100 to rotate, and the filter 100 moves relative to the cleaning mechanism 300, so that the cleaning mechanism 300 can clean the hair and other substances deposited on the outer wall of the filter 100 in time. The hair and other substances on the outer wall of the filter 100 can be cleaned regularly without affecting the purification effect of the whole machine, which not only reduces the risk of secondary pollution caused by hair and other substances, but also improves the service life of the air purification device 10 and the filter 100.

[0037] like Figure 2 As shown, specifically in this embodiment, the filter screen 100 can be configured as a cylindrical primary filter screen.

[0038] like Figure 1 and Figure 3 As shown, further, the air purification device 10 also includes a base 400 and a rotating wheel 500 that rotates with the base 400, the filter 100 is fixedly mounted on the rotating wheel 500, and the driving mechanism 200 is drivingly connected to the rotating wheel 500. In this way, the filter 100 rotates around the fixed axis under the guidance of the base 400 and the drive of the driving mechanism 200, so that the relative position between the filter 100 and the cleaning mechanism 300 can be kept stable, ensuring that the cleaning mechanism 300 can effectively and reliably clean the hair and other substances on the outer wall of the filter 100, thereby improving the reliability of the air purification device 10.

[0039] The driving mechanism 200 may be a belt driving structure, a gear driving structure or other driving structures. The cleaning mechanism 300 may be any cleaning structure in the prior art for cleaning the filter screen 100 .

[0040] like Figure 1 and Figure 3As shown, optionally, a first annular flange 511 and a second annular flange 512 are coaxially arranged on one side of the rotating wheel 500 away from the filter 100, the first annular flange 511 is rotatably connected to the base 400, the second annular flange 512 is spaced outside the first annular flange 511, and the inner side wall of the second annular flange 512 is provided with an inner tooth portion 513, and the driving mechanism 200 includes a first motor 211 and a first gear 212 connected to the first motor 211, and the first gear 212 is located between the first annular flange 511 and the second annular flange 512, and meshes with the inner tooth portion 513. In this way, the first motor 211 can stably and reliably drive the rotating wheel 500 and the filter 100 to rotate synchronously through the first gear 212, and the first motor 211 and the first gear 212 can also be hidden in the installation space surrounded by the base 400, the first annular flange 511, the second annular flange 512 and the rotating wheel 500, thereby improving the reliability of the air purification device 10.

[0041] Specifically in this embodiment, the filter screen 100 and the rotor 500 are an integrated structure. The central axis of the first annular flange 511, the central axis of the filter screen 100 and the central axis of the rotor 500 are all located on the same straight line.

[0042] like Figure 1 , Figure 4 and Figure 5 As shown, in one embodiment, the cleaning mechanism 300 includes a collecting member 310, which is fixed to the outside of the filter 100 and is surrounded by the outer wall of the filter 100 to form a collecting chamber 320 having a collecting port, and the collecting port is located at the rear side of the collecting chamber 320 along the rotation direction of the filter 100. In this way, when the driving mechanism 200 drives the filter 100 to rotate, hair and other substances on the outer wall of the filter 100 can enter the collecting chamber 320 through the collecting port and remain in the collecting chamber 320 for subsequent centralized collection and processing, thereby improving the practicality of the air purification device 10.

[0043] like Figure 1 and Figure 5As shown, optionally, the collecting member 310 is provided with a first blocking rib 311 and a second blocking rib 312 that both extend along the axial direction of the filter screen 100. The first blocking rib 311 is spaced behind the second blocking rib 312 along the rotation direction of the filter screen 100, and forms a collecting opening at an interval from the outer sidewall of the filter screen 100. The second blocking rib 312 is in interference fit with the outer sidewall of the filter screen 100. The first blocking rib 311, the second blocking rib 312, the outer sidewall of the filter screen 100, and the collecting member 310 enclose to form a collecting cavity 320. In this way, the first blocking rib 311 is spaced from the outer sidewall of the filter screen 100 to form a collecting opening, so that substances such as hair deposited on the outer sidewall of the filter screen 100 can pass through the collecting opening and enter the collecting cavity 320, while the second blocking rib 312 is in interference fit with the outer sidewall of the filter screen 100 to effectively block substances such as hair in the collecting cavity 320 and keep them in the collecting cavity 320, improving the purification effect of the air purification device 10.

[0044] Specifically in this embodiment, both ends of the collecting member 310 along the axial direction of the filter screen 100 are attached to the outer sidewall of the filter screen 100. In this way, both ends of the collecting member 310 along the axial direction of the filter screen 100 can effectively block substances such as hair in the collecting cavity 320 from flowing out, improving the purification effect of the air purification device 10. In other embodiments, both ends of the collecting member 310 along the axial direction of the filter screen 100 may also be spaced from the outer sidewall of the filter screen 100.

[0045] As Figure 5 , Figure 6 and Figure 7 shown, in one embodiment, at least one jack 313 communicating with the collecting cavity 320 is provided on the side of the collecting member 310 away from the filter screen 100. The cleaning mechanism 300 further includes a movable member 330. The movable member 330 is provided with at least one blocking portion 331. Each blocking portion 331 is correspondingly inserted and matched with each jack 313. The movable member 330 is movably matched with the collecting member 310 along the radial direction of the filter screen 100, so that each blocking portion 331 can move out of or into the collecting cavity 320. In this way, when cleaning substances such as hair deposited on the outer sidewall of the filter screen 100, the movable member 330 moves along the radial direction of the filter screen 100 and approaches the filter screen 100, so that each blocking portion 331 extends into the collecting cavity 320 and is close to or attached to the outer sidewall of the filter screen 100, facilitating the blocking and collection of substances such as hair on the outer sidewall of the filter screen 100. After cleaning the substances such as hair deposited on the outer sidewall of the filter screen 100, the filter screen 100 stops rotating, and the movable member 330 moves along the radial direction of the filter screen 100 and away from the filter screen 100, so that each blocking portion 331 moves out of the collecting cavity 320, and the substances such as hair on each blocking portion 331 remain in the collecting cavity 320, facilitating the subsequent centralized collection and treatment of the substances such as hair in the collecting cavity 320 and improving the practicability of the air purification device 10.

[0046] Among them, the movable member 330 can move radially relative to the collecting member 310 along the filter screen 100 under the drive of a mechanical structure, or can also move radially relative to the collecting member 310 along the filter screen 100 under the drive of a driving member such as a motor. Specifically in this embodiment, the blocking portion 331 can be set as a cylindrical protrusion.

[0047] As Figure 1 , Figure 2 and Figure 7 shown, further, a first abutting portion 111 is further provided on the outer side wall of the filter screen 100, the movable member 330 is further provided with a second abutting portion 332 that abuts and cooperates with the first abutting portion 111, and the cleaning mechanism 300 further includes an elastic member 340. The elastic member 340 is configured to be compressed when the first abutting portion 111 abuts and cooperates with the second abutting portion 332, so that each blocking portion 331 moves out of the collection cavity 320, and to reset when the abutting cooperation between the first abutting portion 111 and the second abutting portion 332 is released, so that each blocking portion 331 extends into the collection cavity 320. Thus, when the air purification device 10 turns on the automatic hair removal mode of the filter screen 100, the driving mechanism 200 drives the filter screen 100 to start rotating, the first abutting portion 111 on the filter screen 100 is separated from the second abutting portion 332, and at the same time, the movable member 330 moves radially along the filter screen 100 and approaches the filter screen 100 under the action of the elastic member 340. Each blocking portion 331 on the movable member 330 extends into the collection cavity 320 from each jack 313 and is close to or attached to the outer side wall of the filter screen 100, facilitating the blocking and collection of substances such as hair on the outer side wall of the filter screen 100. When the filter screen 100 rotates one or an integer number of circles, the driving mechanism 200 stops driving, the first abutting portion 111 and the second abutting portion 332 abut again, causing the movable member 330 to move radially along the filter screen 100 and away from the filter screen 100, the elastic member 340 is compressed, and each blocking portion 331 moves out of the collection cavity 320, and substances such as hair on each blocking portion 331 remain in the collection cavity 320, facilitating the subsequent centralized collection and treatment of substances such as hair in the collection cavity 320 and improving the practicability of the air purification device 10.

[0048] Among them, the number of the elastic members 340 can be flexibly adjusted according to actual usage needs. The elastic member 340 can be set as a spring, an elastic pad, an elastic column or other elastic structures. Specifically in this embodiment, there are two elastic members 340, and the two elastic members 340 are respectively located between the two ends of the movable member 330 along the axial direction of the filter screen 100 and the two ends of the abutting member 350 along the axial direction of the filter screen 100.

[0049] Specifically in this embodiment, the first abutting portion 111, the first blocking rib 311, and the first abutting portion 111 and the second blocking rib 312 are all arranged in a circumferential dislocation along the filter screen 100.

[0050] As Figure 1 ,Figure 5 and Figure 7 As shown, optionally, the cleaning mechanism 300 further includes a resisting member 350, which is fixed to a side of the collecting member 310 away from the filter screen 100 and is surrounded with the collecting member 310 to form an active cavity 360, in which the movable member 330 is movably installed, and the number of the elastic member 340 is at least one, and each elastic member 340 is installed between the movable member 330 and the resisting member 350. In this way, the elastic member 340 is guaranteed to expand and contract along the radial direction of the filter screen 100 to drive the movable member 330 to move, thereby improving the reliability of the air purification device 10.

[0051] Specifically in this embodiment, the first blocking rib 311 and the second blocking rib 312 are respectively located on both sides of the collecting member 310 and form an I-shaped structure. The first blocking rib 311, the second blocking rib 312, the side of the collecting member 310 away from the filter screen 100, and the abutment member 350 are arranged to form a movable cavity 360. The movable member 330 can be set as a movable rod. The abutment member 350 can be set as an abutment plate.

[0052] like Figure 1 , Figure 6 and Figure 7 As shown, optionally, the movable cavity 360 extends along the axial direction of the filter 100, the movable part 330 is inserted into the movable cavity 360, and the two ends of the movable part 330 are respectively provided with a second interference portion 332 and a third interference portion 333, and the air purification device 10 also includes a wheel 500 for fixing the filter 100, the first interference portion 111 is arranged on the outer wall of the filter 100 and away from one end of the wheel 500, and the outer wall of the wheel 500 is provided with a fourth interference portion 514, and the fourth interference portion 514 is located on one side of the first interference portion 111 along the axial direction of the filter 100, and is in interference with the third interference portion 333. In this way, the second resistance part 332 and the third resistance part 333 can respectively resist or release the resistance cooperation with the first resistance part 111 and the fourth resistance part 514 at the same time, so that the force distribution on the movable part 330 is more uniform, ensuring that the movable part 330 can stably and reliably move along the radial direction of the filter 100, thereby improving the reliability of the air purification device 10.

[0053] Among them, both sides of the first resistance part 111 along the circumference of the filter screen 100, both sides of the second resistance part 332 along the circumference of the filter screen 100, both sides of the third resistance part 333 along the circumference of the filter screen 100, and both sides of the fourth resistance part 514 along the circumference of the filter screen 100 are all set as arc surfaces.

[0054] like Figure 1As shown, in one embodiment, the air purification device 10 further includes a dust box 600 and a collection mechanism 700, the dust box 600 is located below the collection chamber 320, and the collection mechanism 700 is located above the collection chamber 320, and is configured to push the material in the collection chamber 320 into the dust box 600 when each blocking portion 331 moves out of the collection chamber 320. In this way, when each blocking portion 331 moves out of the collection chamber 320, the collection mechanism 700 is activated to push the hair and other materials in the collection chamber 320 downward into the dust box 600. After the whole machine automatically cleans the hair, the dust box 600 is taken out and the inside is cleaned to prevent secondary contamination by the hair for the next use.

[0055] Specifically in this embodiment, the outer wall of the base 400 is provided with a mounting groove for mounting the dust box 600 , and the top of the mounting groove is provided with an inlet located below the collecting cavity 320 and correspondingly connected to the dust box 600 .

[0056] like Figure 1 and Figure 8 As shown, further, the collection mechanism 700 includes a driving assembly 710 and a pushing member 721, the pushing member 721 extends into the collection chamber 320 from the top of the collection chamber 320, and the driving assembly 710 is transmission-connected to the pushing member 721 so that when each blocking portion 331 moves out of the collection chamber 320, the pushing member 721 can move axially along the filter 100 to push the material in the collection chamber 320 into the dust box 600.

[0057] The driving assembly 710 may be a screw nut driving structure, a worm gear driving structure, a gear rack driving structure, or other driving structures. Specifically in this embodiment, the top of the collecting member 310 is in contact with the outer wall of the filter screen 100, and is provided with a mounting hole along the axial direction of the filter screen 100 and connected to the top of the collecting chamber 320, and the bottom end of the pushing member 721 passes through the mounting hole and extends into the collecting chamber 320.

[0058] like Figure 1 and Figure 8As shown, optionally, the pushing member 721 is provided as a push rod, and an external thread is provided on the outer side wall of the push rod. The driving assembly 710 includes a second motor 711, a second gear 712, and a third gear 713. The second motor 711 is drivingly connected to the second gear 712, the second gear 712 meshes with the third gear 713, and the third gear 713 is provided with a central hole. An internal thread that is in threaded fit with the external thread is provided on the inner side wall of the central hole. In this way, when all the blocking portions 331 are moved out of the collection chamber 320, the second motor 711 is started, and the third gear 713 is driven to rotate through the second gear 712. The third gear 713 drives the push rod to move downward along the inner wall of the collection chamber 320 to the bottom of the collection chamber 320, so as to push substances such as hair in the collection chamber 320 into the dust collection box 600. After the substances such as hair are pushed into the dust collection box 600, the second motor 711 drives the third gear 713 to rotate in the reverse direction through the second gear 712. The third gear 713 drives the push rod to move upward along the inner wall of the collection chamber 320 to the top of the collection chamber 320, ensuring that the push rod will not interfere with the blocking portion 331 and improving the reliability of the air purification device 10.

[0059] Specifically in the embodiment, the second motor 711 can be provided as a stepping motor. The air purification device 10 further includes an upper cover 800 installed above the filter screen 100. The driving assembly 710 is installed on the top of the upper cover 800, and the push rod passes through the upper cover 800 and is drivingly connected to the driving assembly 710.

[0060] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0061] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In this application, unless otherwise clearly defined and limited, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] In this application, unless otherwise clearly defined and limited, if there is a description such as the first feature being "on" or "under" the second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or just means that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or just means that the first feature is at a lower horizontal level than the second feature.

[0064] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0065] It should also be understood that when interpreting the connection relationship or position relationship of elements, although not clearly described, the connection relationship and position relationship are interpreted to include the error range, and this error range should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "about", "approximate" or "substantially" can mean within one or more standard deviations, which is not limited herein.

[0066] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0067] The above embodiments only represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patented application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An air purification device, characterized in that: include: Filter(100); A driving mechanism (200) which is in driving connection with the filter screen (100) to drive the filter screen (100) to rotate; A cleaning mechanism (300) is installed on the outside of the filter screen (100) and is configured to clean the outer side wall of the filter screen (100) when the filter screen (100) rotates.

2. The air purification device according to claim 1, characterized in that: The air purification device (10) further comprises a base (400) and a rotating wheel (500) rotatably matched with the base (400), the filter (100) is fixedly mounted on the rotating wheel (500), and the driving mechanism (200) is drivingly connected to the rotating wheel (500).

3. The air purification device according to claim 2, characterized in that: A first annular flange (511) and a second annular flange (512) are coaxially arranged on a side of the rotating wheel (500) away from the filter screen (100); the first annular flange (511) is rotatably connected to the base (400); the second annular flange (512) is spaced apart and located outside the first annular flange (511); an inner side wall of the second annular flange (512) is provided with an inner tooth portion (513); the driving mechanism (200) comprises a first motor (211) and a first gear (212) drivingly connected to the first motor (211); the first gear (212) is located between the first annular flange (511) and the second annular flange (512), and meshes with the inner tooth portion (513).

4. The air purification device according to any one of claims 1 to 3, characterized in that: The cleaning mechanism (300) comprises a collecting member (310), the collecting member (310) being fixed to the outside of the filter screen (100) and being arranged together with the outer side wall of the filter screen (100) to form a collecting chamber (320) having a collecting port, the collecting port being located at the rear side of the collecting chamber (320) along the rotation direction of the filter screen (100).

5. The air purification device according to claim 4, characterized in that: The collecting member (310) is provided with a first blocking rib (311) and a second blocking rib (312) both extending along the axial direction of the filter screen (100); the first blocking rib (311) is spaced apart from the second blocking rib (312) at the rear side of the filter screen (100) in the rotation direction of the filter screen (100), and is spaced apart from the outer side wall of the filter screen (100) to form the collecting port; the second blocking rib (312) is interference fit with the outer side wall of the filter screen (100); the first blocking rib (311), the second blocking rib (312), the outer side wall of the filter screen (100) and the collecting member (310) are arranged to form the collecting cavity (320).

6. The air purification device according to claim 4, characterized in that: At least one plug hole (313) communicating with the collection chamber (320) is provided on a side of the collection member (310) away from the filter screen (100). The cleaning mechanism (300) further comprises a movable member (330). The movable member (330) is provided with at least one blocking portion (331). Each blocking portion (331) is plugged in and matched with each plug hole (313). The movable member (330) and the collection member (310) move in a radial direction of the filter screen (100) so that each blocking portion (331) can be moved out of or extended into the collection chamber (320).

7. The air purification device according to claim 6, characterized in that: The outer wall of the filter screen (100) is further provided with a first abutting portion (111), and the movable member (330) is further provided with a second abutting portion (332) abutting against the first abutting portion (111). The cleaning mechanism (300) further comprises an elastic member (340), wherein the elastic member (340) is configured to be compressed when the first abutting portion (111) abuts against the second abutting portion (332), so that each of the blocking portions (331) moves out of the collecting chamber (320), and to be reset when the abutting between the first abutting portion (111) and the second abutting portion (332) is released, so that each of the blocking portions (331) extends into the collecting chamber (320).

8. The air purification device according to claim 7, characterized in that: The cleaning mechanism (300) further comprises a resisting member (350), the resisting member (350) being fixed to a side of the collecting member (310) away from the filter screen (100), and being arranged together with the collecting member (310) to form a movable cavity (360), the movable member (330) being movably mounted in the movable cavity (360), and the number of the elastic member (340) being at least one, and each elastic member (340) being mounted between the movable member (330) and the resisting member (350).

9. The air purification device according to claim 8, characterized in that: The movable cavity (360) extends along the axial direction of the filter (100), the movable member (330) is inserted into the movable cavity (360), and the second interference portion (332) and the third interference portion (333) are respectively provided at two ends of the movable member (330). The air purification device (10) further comprises a rotating wheel (500) for fixing the filter (100), the first interference portion (111) being arranged on the outer wall of the filter (100) and away from one end of the rotating wheel (500), and the outer wall of the rotating wheel (500) is provided with a fourth interference portion (514), the fourth interference portion (514) being located on one side of the first interference portion (111) along the axial direction of the filter (100) and interfering with the third interference portion (333).

10. The air purification device according to claim 6, characterized in that: The air purification device (10) further comprises a dust box (600) and a collecting mechanism (700), wherein the dust box (600) is located below the collecting chamber (320), and the collecting mechanism (700) is located above the collecting chamber (320), and is configured to push the material in the collecting chamber (320) into the dust box (600) when each of the blocking portions (331) moves out of the collecting chamber (320).

11. The air purification device according to claim 10, characterized in that: The collecting mechanism (700) comprises a driving assembly (710) and a pushing member (721); the pushing member (721) extends from the top of the collecting chamber (320) into the collecting chamber (320); the driving assembly (710) is in transmission connection with the pushing member (721), so that when each blocking portion (331) moves out of the collecting chamber (320), the pushing member (721) can move along the axial direction of the filter screen (100) to push the material in the collecting chamber (320) into the dust collecting box (600).

12. The air purification device according to claim 11, characterized in that: The pushing member (721) is configured as a push rod, and the outer wall of the push rod is provided with an external thread. The driving assembly (710) includes a second motor (711), a second gear (712) and a third gear (713). The second motor (711) is transmission-connected to the second gear (712), and the second gear (712) is meshed with the third gear (713). The third gear (713) is provided with a center hole, and the inner wall of the center hole is provided with an internal thread that matches the external thread.

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