Air purifier with automatic primary filter screen cleaning device

Abstract

The utility model discloses an air purifier with an automatic primary-effect filter screen cleaning device. The automatic primary-effect filter screen cleaning device comprises a frame, a primary-effect filter screen cleaning device and a secondary-effect filter screen cleaning device, the driving shaft is rotationally arranged at one end of the frame; the driven shaft is rotationally arranged at the other end of the frame, and the driven shaft and the driving shaft are arranged in parallel at an interval; the primary filter screen is wound outside the driving shaft and the driven shaft; the driving assembly is in transmission connection with the driving shaft; and the cleaning assembly is arranged on one side of the primary filter screen and elastically abuts against the primary filter screen. According to the technical scheme, hair and fiber velvet adsorbed on the surface of the filter screen of the air purifier are cleaned, the service life of the filter screen is prolonged, the air resistance of the filter screen is reduced, and the purification efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of air purification, in particular to an air purifier with an automatic cleaning device for a primary filter screen. Background Art

[0002] Currently, after an air purifier with a filter has been used for a period of time, large particles of dust, dandruff, hair and fiber fluff in the air adhere to the surface of the primary filter, increasing the resistance to air filtration. The primary filter must be cleaned. To clean the primary filter, it is necessary to manually pull out the primary filter from the inside of the air purifier and clean it manually. This is not only inconvenient, but also in the process of extracting the filter, pollutants such as large particles of dust, hair and dandruff adsorbed on the filter will fall off, forming secondary pollution. Regular cleaning and maintenance adds an extra burden to consumers. Utility Model Content

[0003] The main purpose of the utility model is to provide an air purifier with an automatic cleaning device for the primary filter, aiming to solve the trouble of manual cleaning of the filter, realize regular automatic cleaning, and thus improve the purification effect.

[0004] To achieve the above-mentioned purpose, the present invention provides an air purifier with an automatic cleaning device for a primary filter, the automatic cleaning device for the primary filter comprising:

[0005] frame;

[0006] A driving shaft is rotatably disposed at one end of the frame;

[0007] A driven shaft is rotatably arranged at the other end of the frame, the driven shaft is parallel to the driving shaft and spaced apart;

[0008] A primary filter screen is wound around the outside of the driving shaft and the driven shaft;

[0009] A driving assembly, drivingly connected to the driving shaft; and

[0010] The cleaning component is arranged on one side of the primary filter and elastically contacts the primary filter.

[0011] In one embodiment, the cleaning assembly comprises:

[0012] A mounting frame is provided on one side of the primary filter screen;

[0013] The brush head is in contact with the primary filter; the brush head can be a bristle brush, a silicone / rubber soft brush or a foam brush, etc., covering other conventional cleaning methods

[0014] The first elastic member connects the brush head and the mounting bracket.

[0015] In one embodiment, a plurality of the first elastic members are provided, and the plurality of the first elastic members are spaced apart along the length direction of the brush head.

[0016] In one embodiment, the automatic cleaning device for the primary filter screen further comprises a tensioning assembly, and the driven shaft is elastically connected to the frame via the tensioning assembly so as to have a tendency to move away from the driving shaft.

[0017] In one embodiment, the tensioning assembly comprises:

[0018] A connecting seat is slidably connected to the frame, and the driven shaft is rotatably arranged on the connecting seat;

[0019] The second elastic member elastically connects the connecting seat and the frame so that the frame tends to move away from the driven shaft.

[0020] In one embodiment, the automatic cleaning device for the primary filter further includes a shell, and the frame and the cleaning assembly are fixedly disposed in the shell.

[0021] In one embodiment, the automatic cleaning device for the primary filter further comprises a dirt storage box with an opening at the top, wherein the dirt storage box is disposed in the housing and is located on a side of the primary filter close to the ground.

[0022] In one embodiment, an opening is provided at the bottom of the front side of the shell, and the dirt storage box is slidably connected to the shell to slide into or out of the shell through the opening of the shell.

[0023] In one embodiment, the frame is detachably connected to the housing.

[0024] In one embodiment, a card slot is provided on the bottom wall of the shell, a spring latch is provided on the top wall of the shell, a card position is provided on the bottom of the frame, and a pin hole is provided on the top of the frame. The card position is inserted into the card slot and the spring latch is plugged into the pin hole.

[0025] Compared with the prior art, in the technical solution of the present invention, a frame is set and a driving shaft and a driven shaft are set on the frame in parallel and spaced apart, and a primary filter is wound between the driving shaft and the driven shaft. The primary filter is driven by a driving component to rotate back and forth in a conveyor belt-like manner for filtering. In order to facilitate cleaning, a cleaning component is set on one side of the primary filter, and the cleaning component is in contact with the primary filter. As the primary filter rotates, the cleaning component and the primary filter move relative to each other, thereby sweeping away dust on the primary filter, thereby realizing automatic cleaning of the primary filter. In this way, the primary filter does not need to be removed from the air purifier for cleaning, thereby improving the convenience of cleaning. In addition, the cleaning component is elastically in contact with the primary filter, that is, when the primary filter is loose or vibrates, the cleaning component can always be close to the filter, so that the cleaning component can always effectively clean the primary filter, thereby improving the cleaning effect of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0027] Figure 1 This is an exploded diagram of the automatic cleaning device for the primary filter provided by the utility model;

[0028] Figure 2 This is a cross-sectional schematic diagram of the cleaning component in the automatic cleaning device for the primary filter provided by the utility model;

[0029] Figure 3 This is a cross-sectional schematic diagram of the automatic cleaning device for the primary filter provided by the utility model, viewed from the front;

[0030] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0031] Figure 5 This is a schematic cross-sectional view of the automatic cleaning device for the primary filter provided by the present invention, viewed from the side;

[0032] Figure 6 for Figure 5 A partial enlarged view of point B in the middle.

[0033] Description of Figure Numbers:

[0034] 100, frame; 110, latch; 200, driving shaft; 300, driven shaft; 400, primary filter; 500, driving assembly; 600, cleaning assembly; 610, mounting bracket; 620, brush head; 630, first elastic member; 700, tensioning assembly; 710, connecting seat; 720, second elastic member; 800, housing; 810, spring latch; 820, slot; 900, dirt storage box.

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] 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 shall fall within the scope of protection of the present invention.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] In order to facilitate the cleaning of the air purifier filter and improve the cleaning effect, the utility model proposes a purifier with an automatic cleaning device for the primary filter, comprising:

[0040] Frame 100;

[0041] The driving shaft 200 is rotatably mounted on one end of the frame 100;

[0042] The driven shaft 300 is rotatably disposed at the other end of the frame 100 , and the driven shaft 300 is parallel to the driving shaft 200 and spaced apart;

[0043] The primary filter 400 is wound around the driving shaft 200 and the driven shaft 300;

[0044] The driving assembly 500 is in driving connection with the driving shaft 200; and

[0045] The cleaning assembly 600 is disposed on one side of the primary filter 400 and elastically contacts the primary filter 400 .

[0046] Compared with the prior art, in the technical solution of the present invention, the automatic cleaning device for the primary filter is provided with a frame 100 and a driving shaft 200 and a driven shaft 300 that are parallel and spaced apart are rotatably provided on the frame 100, and a primary filter 400 is wound between the driving shaft 200 and the driven shaft 300. The primary filter 400 is driven by a driving assembly 500 to rotate back and forth in a conveyor belt-like manner for filtering. In order to facilitate cleaning, a cleaning assembly 600 is provided on one side of the primary filter 400. The cleaning assembly 600 abuts against the primary filter 400. As the primary filter 400 rotates, The cleaning component 600 moves relative to the primary filter 400, thereby sweeping away the dust on the primary filter 400, thereby cleaning the primary filter 400. In this way, the primary filter 400 does not need to be removed from the air purifier for cleaning, thereby improving the convenience of cleaning; in addition, the cleaning component 600 and the primary filter 400 are elastically abutted, that is, when the primary filter 400 is loose or vibrates, the cleaning component 600 can always be in close contact with the primary filter 400, so that the cleaning component 600 can always effectively clean the primary filter 400, thereby improving the cleaning effect of the primary filter 400.

[0047] like Figures 1 to 6In one embodiment of the present invention, the automatic cleaning device for the primary filter includes a frame 100, which is placed vertically. The top of the frame 100 is rotatably connected to a driven shaft 300 through a bearing, and the bottom of the frame 100 is rotatably connected to a driving shaft 200 through a bearing. The driving shaft 200 and the driven shaft 300 are arranged parallel to each other and are parallel to the ground. A primary filter 400 is wound around the outside of the driving shaft 200 and the outside of the driven shaft 300. The primary filter 400 is in the form of a conveyor belt. The primary filter 400 can be a conventional primary filter style. When the driving shaft 200 rotates, it can drive The primary filter 400 circulates between the driving shaft 200 and the driven shaft 300. The primary filter 400 is arranged on the windward side of the air purifier. In this way, the air can be filtered by the rotating primary filter 400. Since the primary filter 400 is a double-layer arrangement, compared with the traditional filter, the filtering effect of the primary filter 400 in this scheme can be double-layered, which is beneficial to improving the filtering efficiency; in addition, the automatic cleaning device for the primary filter also includes a drive component 500, which can be a motor. The drive component 500 directly drives the driving shaft 200 to rotate, thereby driving the primary filter 400 to rotate. In addition, a cleaning component 600 is provided on one side of the primary filter 400. The cleaning component 600 is provided with a brush head. The brush head can be a conventional structure such as a bristle brush, a silicone / rubber soft brush sheet or a foam brush. The brush head fits the outer side of the primary filter 400. When the primary filter 400 rotates, there is relative movement between the primary filter 400 and the brush head. The brush head can brush dust and other pollutants away from the primary filter 400 to clean the filter. In this way, the primary filter 400 can be cleaned without being removed from the air purifier, which improves the convenience of cleaning. In addition, the primary filter 400 can filter and clean at the same time when rotating, which also ensures the filtering effect. In addition, the brush head 620 in this solution is elastically connected and fixed by the first elastic member 630 and the mounting bracket 610. The brush head 620 is elastically abutted against the primary filter 400 under the elastic force of the first elastic member 630. In this way, even if the primary filter 400 is loose or vibrates or the brush head is worn and shortened, the brush head 620 can always fit closely with the primary filter 400, which is beneficial to improve the cleaning effect of the primary filter 400.

[0048] like Figure 2 and Figure 6 In one embodiment of the present invention, the cleaning assembly 600 includes:

[0049] The mounting bracket 610 is provided on one side of the primary filter 400;

[0050] The brush head 620 abuts against the primary filter 400;

[0051] The first elastic member 630 connects the brush head 620 and the mounting bracket 610 .

[0052] In this embodiment, the mounting frame 610 is a box-shaped structure with one side open. A first elastic member 630 is disposed within the mounting frame 610. The first elastic member 630 may be a compression spring. A brush head 620 is also movably disposed at the opening of the mounting frame 610. The side of the brush head 620 facing away from the mounting frame 610 is densely covered with bristles or a soft brush sheet. The brush head 620 is connected to the first elastic member 630. During installation, the mounting frame 610 can be fixed within the air purifier by a detachable connection method such as magnetic attraction, so that the cleaning assembly 600 can be removed for maintenance or cleaning. The brush head 620 can be abutted against the primary filter 400 under the elastic force of the first elastic member 630 to clean the filter. In addition, the brush head 620 is arranged in an elongated strip shape, extending laterally along the primary filter 400. The length of the brush head 620 is not less than the width of the primary filter 400, thereby ensuring that the primary filter 400 can be completely cleaned without blind spots.

[0053] like Figure 2 In order to ensure that the brush head 620 fits more closely with the primary filter 400, multiple first elastic members 630 are provided, and multiple first elastic members 630 are arranged at intervals along the length direction of the brush head 620. In this way, the area of the brush head 620 corresponding to each first elastic member 630 can fit tightly with the primary filter 400, preventing local deformation and bending of the brush head 620 from affecting the cleaning effect; in addition, the compression amount of each first elastic member 630 can be different to allow the brush head 620 to swing to adapt to the shape of the primary filter 400, thereby ensuring the cleaning effect.

[0054] like Figure 1 In one embodiment of the present invention, the automatic cleaning device for the primary filter screen also includes a tensioning assembly 700. The driven shaft 300 is elastically connected to the frame 100 through the tensioning assembly 700 so as to have a movement tendency away from the driving shaft 200. The tensioning assembly 700 can be a spring structure. The driven shaft 300 is connected to the frame 100 through a spring. In this way, the driven shaft 300 has a movement tendency away from the driving shaft 200, so that the primary filter screen 400 can be kept tensioned under the action of the tensioning assembly 700, thereby preventing the primary filter screen 400 from slipping during rotation and ensuring the stability of the movement of the primary filter screen 400.

[0055] like Figure 4 In one embodiment of the present invention, the tensioning assembly 700 includes:

[0056] The connecting seat 710 is slidably connected to the frame 100, and the driven shaft 300 is rotatably mounted on the connecting seat 710;

[0057] The second elastic member 720 elastically connects the connecting seat 710 and the frame 100 , so that the frame 100 tends to move away from the driven shaft 300 .

[0058] The second spring 720 is pressed against the bottom surface of the drive shaft 200, and the second spring 720 is pressed against the bottom surface of the drive shaft 200, so that the second spring 720 can slide in the direction of the drive shaft 200 and move relative to the second spring 720.

[0059] like Figure 1 In one embodiment of the present invention, the automatic cleaning device for the primary filter further includes a housing 800, a frame 100 and a cleaning assembly 600 fixedly disposed in the housing 800, and the shape and size of the housing 800 can be adjusted according to the volume and needs of the internal components. The housing 800 has a receiving cavity with an opening on one side, and the above-mentioned frame 100 and the cleaning assembly are installed in the receiving cavity through the opening. In addition, a cover is provided at the opening, which can close the opening of the housing 800, thereby providing protection for the internal components. In addition, in order to further improve the filtering effect, a second filter can be provided on the windward side of the frame 100. The mesh size of the second filter is larger than that of the primary filter 400 or can be the same as that of the primary filter 400. The additional second filter can first block larger foreign matter from entering the housing 800, thereby achieving the first layer of filtration of the air, thereby further improving the filtering effect and extending the service life of the primary filter 400.

[0060] like Figure 5 In one embodiment of the present invention, an opening is provided at the bottom front side of the shell 800, and the automatic cleaning device for the primary filter further includes a dirt storage box 900 with an opening at the top. The dirt storage box 900 is provided in the shell 800 and is located on the side of the primary filter 400 close to the ground. The storage box is vertically opposite to the primary filter 400, and the opening range of the storage box covers the position of the primary filter 400 and the position of the cleaning component 600. In this way, the dust falling from the primary filter 400 and the dust brushed off the cleaning component 600 can be received by the dirt storage box 900. The user only needs to clean the dirt storage box 900 regularly, which facilitates the collection and cleaning of dirt inside the air purifier and further improves the convenience of user use.

[0061] like Figure 1 and Figure 3In one embodiment of the present invention, an opening is provided at the bottom front side of the housing 800, and the dirt storage box 900 is slidably connected to the housing 800 so as to slide into or out of the housing 800 from the opening of the housing 800. The position of the opening is directly opposite to the position of the dirt storage box 900. In addition, a slide groove can be provided in the housing 800, and the dirt storage box 900 slides with the slide groove, so that the dirt storage box 900 can slide into and out of the housing 800 from the opening of the housing 800. At the same time, the dirt storage box 900 and the housing 800 are magnetically fixed by a magnetic attraction device, so that the dirt storage box 900 will be adsorbed on the housing 800. This prevents the dirt storage box 900 from sliding out on its own. In this way, when cleaning is required, the user does not need to open the housing 800, but only needs to pull the dirt storage box 900 out of the housing 800 for cleaning, which further facilitates the user's use.

[0062] In one embodiment of the present invention, in order to facilitate the assembly and subsequent maintenance of the air purifier, the frame 100 is detachably connected to the shell 800. Specifically, the frame 100 can be fixed to the shell 800 by snap-fitting or spring pinning. In this way, when it is necessary to maintain or clean the frame 100 components, the frame 100 can be removed from the shell 800, which can facilitate the cleaning and replacement of the frame 100, the primary filter 400, the driving shaft 200, the driven shaft 300 and their components, thereby improving the convenience of using the air purifier. In addition, in order to further facilitate the disassembly of the frame 100, the transmission method between the drive assembly 500 and the driving shaft 200 is The formula can also be adaptively improved. In another embodiment of the present invention, a driven gear is fixed to one end of the driving shaft 200, and the driving assembly 500 can be a motor structure. The motor is fixed to the housing 800 and is located on the side of the frame 100. A driving gear is fixed to the motor shaft of the motor, and the driving gear is engaged with the driven gear. In this way, when disassembling the frame 100, it is only necessary to move the frame 100 in the direction in which the driven gear is away from the driving gear to separate the driving assembly 500 from the driving shaft 200. When installing the frame 100, the driven gear and the driving gear are brought close to each other for engagement, thereby improving the convenience of disassembly and assembly of the frame 100.

[0063] Figure 4 and Figure 6An implementation scheme for the detachable connection between the shell 800 and the frame 100 is shown. In this embodiment, a slot 820 is provided on the bottom wall of the shell 800, a spring latch 810 is provided on the top wall of the shell 800, and a latch position 110 is provided at the bottom of the frame 100. The latch position 110 can be a protrusion provided at the bottom of the frame 100, and a pin hole is provided on the top of the frame 100. The latch position 110 is inserted into the slot 820 and the spring latch 810 is plugged into the pin hole. Among them, the position of the card position 110 is aligned with the card slot 820, and the spring latch 810 is aligned with the position of the pin hole. During assembly, first fit the bottom of the frame 100 with the shell 800 so that the card position 110 is locked into the card slot 820, and then rotate the frame 100 around the card slot 820 so that the frame 100 is rotated into the shell 800. Then, the spring latch 810 will be pinned to the top of the frame 100, and the spring latch 810 will retract under the drive of the top of the frame 100 until the spring latch 810 and the pin hole are locked. The holes are positioned right next to each other, and the end of the spring pin 810 will extend out under the action of the internal spring and be inserted into the pin hole. At this time, the shell 800 and the frame 100 are fixed together; when the frame 100 needs to be removed, just pull the frame 100 and the spring pin 810 will retract under the force, and then rotate the frame 100 to take it out; in this solution, the frame 100 can be easily disassembled and assembled by the engagement of the card slot 820 of the card position 110 and the engagement of the spring pin 810 with the pin hole, thereby improving the convenience and experience of user use.

[0064] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An air purifier with an automatic cleaning device for a primary filter, characterized in that: The automatic cleaning device for the primary filter screen includes: frame; A driving shaft is rotatably disposed at one end of the frame; A driven shaft is rotatably arranged at the other end of the frame, the driven shaft is parallel to the driving shaft and spaced apart; A primary filter screen is wound around the outside of the driving shaft and the driven shaft; A driving assembly, drivingly connected to the driving shaft; and The cleaning component is arranged on one side of the primary filter and elastically contacts the primary filter.

2. The air purifier with an automatic cleaning device for a primary filter according to claim 1, characterized in that: The cleaning component includes: A mounting frame is provided on one side of the primary filter screen; The brush head abuts against the primary filter; The first elastic member connects the brush head and the mounting bracket.

3. The air purifier with an automatic cleaning device for a primary filter as claimed in claim 2, characterized in that: A plurality of the first elastic members are provided, and the plurality of the first elastic members are spaced apart along the length direction of the brush head.

4. The air purifier with an automatic cleaning device for a primary filter according to claim 1, characterized in that: The automatic cleaning device for the primary filter screen further comprises a tensioning assembly, and the driven shaft is elastically connected to the frame via the tensioning assembly so as to have a tendency to move away from the driving shaft.

5. The air purifier with an automatic cleaning device for a primary filter as claimed in claim 4, characterized in that: The tensioning assembly comprises: A connecting seat is slidably connected to the frame, and the driven shaft is rotatably arranged on the connecting seat; The second elastic member elastically connects the connecting seat and the frame so that the frame has a tendency to move away from the driving shaft.

6. The air purifier with an automatic cleaning device for a primary filter according to claim 1, characterized in that: The automatic cleaning device for the primary filter screen further comprises a shell, and the frame and the cleaning assembly are fixedly arranged in the shell.

7. An air purifier with an automatic cleaning device for a primary filter as claimed in claim 6, characterized in that: The automatic cleaning device for the primary filter screen further comprises a dirt storage box with an opening at the top. The dirt storage box is arranged in the shell and is located on a side of the primary filter screen close to the ground.

8. An air purifier with an automatic cleaning device for a primary filter as claimed in claim 7, characterized in that: An opening is provided at the bottom of the front side of the shell, and the dirt storage box is slidably connected to the shell so as to slide into or out of the shell from the opening of the shell.

9. The air purifier with an automatic cleaning device for a primary filter according to claim 6, characterized in that: The frame is detachably connected to the shell.

10. An air purifier with an automatic cleaning device for a primary filter as claimed in claim 9, characterized in that: The bottom wall of the shell is provided with a card slot, the top wall of the shell is provided with a spring latch, the bottom of the frame is provided with a card position, the top of the frame is provided with a pin hole, the card position is inserted into the card slot and the spring latch is plugged into the pin hole.

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