Dust collection device and air purifier

Abstract

The utility model relates to the technical field of household appliances, and discloses a dust collection device and an air purifier, and the dust collection device comprises a base which is provided with a mounting position for rotatably mounting a part to be dedusted; the driving mechanism is used for driving the to-be-dedusted part to rotate; a dust collection opening is formed in the side, facing the to-be-dedusted piece, of the dust collection mechanism; the dust collection mechanism is at least partially movably arranged on the base in the radial direction of the to-be-dedusted part so that the distance between the dust collection opening and the to-be-dedusted part can be conveniently adjusted. 360-degree dead-angle-free adsorption dust removal can be performed on the surface of the to-be-dedusted part, and the position of the dust collection mechanism can be adaptively adjusted according to the size of the to-be-dedusted part, so that the dust collection opening of the dust collection mechanism is far away from or close to the to-be-dedusted part; therefore, the dust collection mechanism can always keep a relatively effective working distance from the surfaces of the to-be-dedusted pieces with different diameters, and the purpose of efficient dust collection is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a dust suction device and an air purifier. Background Art

[0002] At present, the common household automatic dust suction devices on the market mainly perform surface dust removal operations on items with relatively large flat areas such as floors and beds. However, when such devices perform surface dust suction operations on some cylindrical items, the dust suction effect will be much worse, or even ineffective.

[0003] In addition, the dust removal devices in the related art cannot effectively perform dust suction operations on the surfaces of cylindrical items with different specifications. In particular, the dust removal device on the air purifier can only remove dust from a single specification of filter element. When the specification of the filter element changes, the structure of the dust suction device also needs to be adjusted adaptively, with poor versatility and high production costs, which is not conducive to mass production of products. Summary of the Utility Model

[0004] In view of this, the utility model provides a dust suction device and an air purifier to solve the problem that the existing automatic dust suction device cannot effectively perform dust suction operations on the surfaces of cylindrical items with different specifications.

[0005] In a first aspect, the utility model provides a dust suction device capable of removing dust from the surface of a cylindrical dust-removing part. The dust suction device includes:

[0006] A base having a mounting position for rotatably mounting the dust-removing part;

[0007] A driving mechanism mounted on the base for driving the dust-removing part to rotate;

[0008] A dust suction mechanism, on one side of the dust suction mechanism facing the dust-removing part, there is a dust suction port;

[0009] The dust suction mechanism is at least partially movably arranged on the base in the radial direction of the dust-removing part to facilitate adjusting the distance between the dust suction port and the dust-removing part.

[0010] Beneficial effects: When the component to be dust-removed is installed on the base, the driving mechanism drives the component to be dust-removed to rotate, and at the same time, the dust suction mechanism is controlled to start. The dust suction mechanism can adsorb the dust on the surface of the component to be dust-removed, so that 360° dead-angle-free adsorption and dust removal can be realized on the surface of the component to be dust-removed, and the dust removal effect is better. In addition, in this application, by adopting the design that the dust suction mechanism is at least partially movably arranged on the base along the radial direction of the component to be dust-removed, the position of the dust suction mechanism can be adaptively adjusted according to the size of the component to be dust-removed, so that the dust suction port of the dust suction mechanism is far from or close to the component to be dust-removed, so that the dust suction mechanism can always maintain a relatively effective working distance from the surface of the component to be dust-removed with different diameters, achieving the purpose of efficient dust suction, and effectively solving the problem that the existing automatic dust suction device cannot effectively perform dust suction operations on the surfaces of cylindrical articles with different specifications.

[0011] In an alternative embodiment, the dust suction mechanism includes:

[0012] A suction head assembly, located on the side of the component to be dust-removed, with a dust suction port provided on the suction head assembly. The suction head assembly is movably arranged on the base along the radial direction of the component to be dust-removed, so as to facilitate adjusting the distance between the dust suction port and the component to be dust-removed.

[0013] Beneficial effects: By adopting the design that the suction head assembly is movably arranged on the base along the radial direction of the component to be dust-removed, the position of the suction head assembly can be adaptively adjusted according to the size of the component to be dust-removed, so that it is far from or close to the component to be dust-removed, so that the suction head assembly can always maintain a relatively effective working distance from the surface of the component to be dust-removed with different diameters, achieving the purpose of efficient dust suction, and effectively solving the problem that the existing automatic dust suction device cannot effectively perform dust suction operations on the surfaces of cylindrical articles with different specifications. And only moving the suction head assembly along the radial direction of the component to be dust-removed requires less moving space compared to moving the entire dust suction mechanism, can reduce the occupancy of space, and is convenient for installation and layout.

[0014] In an alternative embodiment, the base includes:

[0015] A base, on which a rotating tray is rotatably arranged, and the rotating tray is used for installing the component to be dust-removed;

[0016] An installation hole is provided on the base, located on the outer peripheral side of the rotating tray and extending along the radial direction of the rotating tray;

[0017] The suction head assembly is movably installed in the installation hole.

[0018] Beneficial effects: By means of the rotating tray provided on the base, the rotating tray can support the component to be dust-removed and drive the component to be dust-removed to rotate together. When it is necessary to perform adsorption dust removal on the component to be dust-removed, the component to be dust-removed is directly installed on the rotating tray, and then the driving mechanism is controlled to drive the rotating tray to rotate, which can drive the component to be dust-removed to rotate together, effectively avoiding the problem that the driving mechanism directly drives the component to be dust-removed, which is likely to cause structural damage to the component to be dust-removed and is inconvenient for assembly connection.

[0019] In addition, by means of the mounting holes provided on the outer peripheral side of the rotating tray and extending in the radial direction of the rotating tray, the mounting holes can play a guiding role, and by movably installing the suction head assembly in the mounting holes, when it is necessary to adapt to components to be dust-removed of different sizes, by adjusting the position of the suction head assembly in the mounting holes, the purpose of ensuring that the suction port of the suction head assembly and the surface of the component to be dust-removed can maintain a relatively effective working distance can be achieved, and the position adjustment is more convenient and flexible.

[0020] In an optional implementation manner, the dust suction mechanism further includes:

[0021] An adjustable fixing structure, connected to the suction head assembly, for fixing the suction head assembly at different positions in the mounting holes.

[0022] Beneficial effects: Through the setting of the above adjustable fixing structure, the suction head assembly can be fixed at different positions in the mounting holes, making the position adjustment of the suction head assembly more convenient and fast, and ensuring that the suction head assembly can maintain a relatively effective working distance from components to be dust-removed of different diameters.

[0023] In an optional implementation manner, the base further includes:

[0024] A top cover, arranged above the base;

[0025] A support frame, supported and fixed between the base and the top cover, and the top cover, the base and the support frame jointly enclose an installation space for accommodating and installing the component to be dust-removed;

[0026] The support frame is a telescopic structure, and / or the top cover is detachably installed and fixed at different height positions of the support frame.

[0027] Beneficial effects: The component to be dust-removed is clamped between the top cover and the base, which can further improve the stability of the component to be dust-removed and prevent it from tipping over. Moreover, by setting the support frame as a telescopic structure, or by detachably installing and fixing the top cover at different height positions of the support frame, the height of the top cover can be adaptively adjusted according to the height of the component to be dust-removed to adapt to components to be dust-removed of different heights, ensuring that components to be dust-removed of different height dimensions can be placed in the base for upper and lower positioning.

[0028] In an optional implementation manner, the support frame includes:

[0029] A plurality of support rods are arranged at intervals along the circumference of the base, and the upper ends of the support rods penetrate through the top cover.

[0030] A plurality of adjustment holes are arranged at intervals along the length direction of the support rod, and fixing holes are arranged on the top cover. The fixing holes can be selectively fixed to any one of the adjustment holes through a connecting member to fix the top cover at different height positions on the support rod.

[0031] Beneficial effects: By adopting a plurality of support rods arranged at intervals along the circumference of the base, the support frame can further improve the balance stability of the top cover. And through a plurality of adjustment holes arranged at intervals along the length direction of the support rod and fixing holes arranged on the top cover, when the height of the top cover needs to be adjusted, after the top cover is adjusted to a suitable position on the support rod, the fixing hole and the corresponding adjustment hole are connected through a connecting member to fix the top cover at different height positions on the support rod, ensuring that dust-removing parts with different height dimensions can be placed into the base and positioned up and down.

[0032] In an optional embodiment, the suction head assembly includes a fixing frame, the lower end of the fixing frame is supported and fixed on the base, and support ribs are fixedly arranged at the upper end of the fixing frame.

[0033] A plug-in part is arranged on the top cover, a through hole is formed in the plug-in part, and the support ribs can move along the through hole when the suction head assembly moves away from or close to the dust-removing part.

[0034] Beneficial effects: Through the support ribs fixedly arranged at the top of the fixing frame and the corresponding plug-in part arranged on the top cover, when the suction head assembly moves away from or close to the dust-removing part, the support ribs can move along the through hole of the plug-in part. Through the cooperation of the above support ribs and the plug-in part, on the one hand, it can prevent the suction head assembly from tipping over, and on the other hand, it can also play a guiding role.

[0035] In an optional embodiment, the suction head assembly further includes a dust suction pipe structure installed in the fixing frame, and the dust suction pipe structure includes:

[0036] An outer cover cylinder is fixedly installed in the fixing frame, and the dust suction port includes a first opening formed in the outer cover cylinder.

[0037] A suction pipe is arranged inside the outer cover cylinder, and the dust suction port further includes a second opening formed in the suction pipe corresponding to the first opening.

[0038] Beneficial effects: By adopting the design of the outer cover cylinder in the dust suction pipe structure, the suction pipe can be installed inside the outer cover cylinder, and then the outer cover cylinder is fixedly installed in the fixing frame, which is more convenient for the installation of the suction pipe. The dust suction port includes a first opening formed in the outer cover cylinder and a second opening formed in the suction pipe corresponding to the first opening. The dust adsorbed from the dust-removing part enters the suction pipe through the first opening and the second opening.

[0039] In an alternative embodiment, the outer cover cylinder includes a first housing and a second housing. The first housing and the second housing are detachably connected, and after being connected, they can enclose to form an installation cavity capable of accommodating the suction pipe.

[0040] Beneficial effects: By adopting the detachably connected first housing and second housing for the outer cover cylinder, it is convenient for mold release, and at the same time, it is convenient for the installation of the suction pipe, facilitating the disassembly, assembly and maintenance of the suction pipe or the cleaning of the outer cover cylinder in the later stage.

[0041] In an alternative embodiment, the dust suction mechanism further includes:

[0042] A dust collection box, installed inside the base, and the dust collection box is connected to the suction pipe through a first air duct;

[0043] A dust suction motor, installed inside the base, and the dust suction motor is connected to the dust collection box through a second air duct.

[0044] Beneficial effects: The dust suction motor is connected to the suction head assembly through a pipeline. The dust suction motor is used to provide suction force for the suction head assembly. A dust collection box is arranged between the dust suction motor and the suction head assembly, and the dust collection box can filter and store pollutants such as dust and hair. By hiding the dust collection box, the first air duct, the second air duct and the dust suction motor inside the base, it is more beautiful and the overall structure is more compact.

[0045] In a second aspect, the present invention provides an air purifier, including a cylindrical filter screen and the dust suction device according to any of the above embodiments, and the dust suction device is used for dust removal on the surface of the filter screen.

[0046] Beneficial effects: By using the above dust removal device to remove dust from the filter screen in the air purifier, one type of dust suction device can correspond to multiple specifications of filter screens, with good versatility, which can greatly reduce the mold production cost, is more conducive to the mass production of products, and effectively solves the problem that the dust removal device on the existing air purifier can only remove dust from a single specification of filter screen, with poor versatility, high production cost and being not conducive to mass production. Description of the Drawings

[0047] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0048] Figure 1 It is a schematic structural diagram of the dust suction device in the embodiment of the present invention;

[0049] Figure 2 Structural schematic diagram of the base in the embodiment of the present utility model;

[0050] Figure 3 is Figure 2 Structural schematic diagram of the base in after removing the top cover;

[0051] Figure 4 is Figure 3 Structural schematic diagram from the bottom view;

[0052] Figure 5 Structural schematic diagram of the rotating tray and the driving mechanism in the embodiment of the present utility model;

[0053] Figure 6 Structural schematic diagram of the suction head assembly in the embodiment of the present utility model;

[0054] Figure 7 Exploded view of the suction head assembly in the embodiment of the present utility model.

[0055] Explanation of reference numerals:

[0056] 10. Base;

[0057] 11. Base; 110. Mounting hole; 111. Rotating tray;

[0058] 12. Top cover; 121. Insertion part;

[0059] 13. Support frame;

[0060] 20. Driving mechanism; 21. Driving motor; 22. Driving gear; 23. Driven gear;

[0061] 30. Dust suction mechanism;

[0062] 31. Suction head assembly; 310. Dust suction port; 311. Fixing frame; 3111. Support rib; 312. Dust suction pipe structure; 3121. Outer cover cylinder; 31210. First opening; 3122. Suction pipe; 31220. Second opening;

[0063] 32. Dust collection box;

[0064] 33. First air duct;

[0065] 34. Second air duct;

[0066] 35. Dust suction motor. Detailed implementation manners

[0067] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0068] In the related art, the automatic dust suction device mainly performs surface dust removal operations on items with relatively large flat surfaces such as floors and beds. Because the suction port of the dust suction head carried by the device can continuously adhere to the surface of these objects, a relatively sealed space is formed to ensure effective suction. However, when such a device performs surface automatic dust suction operations on some cylindrical items such as the filter of an air purifier, cultural relics, and scrolls, due to the special nature of the material, the dust suction device cannot be placed on the cylindrical item, and the user needs to manually adjust and control the distance between the dust suction device and the cylindrical item, resulting in a significant reduction in the dust removal effect and inconvenient operation during long-term manual work.

[0069] In addition, the dust removal devices in the related art cannot effectively perform dust suction operations on the surfaces of cylindrical items of different specifications. In particular, the dust removal device on an air purifier can only remove dust from a single specification of filter. When the specification of the filter changes, the structure of the dust suction device also needs to be adjusted adaptively, with poor versatility and a large investment in production costs, which is not conducive to the mass production of products.

[0070] The following combines Figures 1 to 7 , to describe the embodiments of the present utility model.

[0071] According to the embodiments of the present utility model, in a first aspect, the present utility model provides a dust suction device capable of removing dust from the surface of a cylindrical object to be dusted. The dust suction device includes a base 10, a driving mechanism 20, and a dust suction mechanism 30. The base 10 has an installation position for rotatably installing the object to be dusted, and the object to be dusted is rotatably arranged at the installation position of the base 10; the driving mechanism 20 is installed on the base 10 and is used to drive the object to be dusted to rotate; on the side of the dust suction mechanism 30 facing the object to be dusted, there is a dust suction port 310; the dust suction mechanism 30 is at least partially movably arranged on the base 10 along the radial direction of the object to be dusted to facilitate adjusting the distance between the dust suction port 310 and the object to be dusted.

[0072] In the above embodiments, when the component to be dust-removed is installed on the base 10, the driving mechanism 20 drives the component to be dust-removed to rotate, and at the same time, the dust suction mechanism 30 is controlled to start. The dust suction mechanism 30 can adsorb the dust on the surface of the component to be dust-removed, so that 360° dead-angle-free adsorption dust removal can be realized on the surface of the component to be dust-removed, and the dust removal effect is better. In addition, in this application, by adopting the design that the dust suction mechanism 30 is at least partially movably arranged on the base 10 along the radial direction of the component to be dust-removed, the position of the dust suction mechanism 30 can be adaptively adjusted according to the size of the component to be dust-removed, so that the dust suction port 310 of the dust suction mechanism 30 is far from or close to the component to be dust-removed, so that the dust suction mechanism 30 can always maintain a relatively effective working distance from the surface of the component to be dust-removed with different diameters, achieving the purpose of efficient dust suction, and effectively solving the problem that the existing automatic dust suction device cannot effectively perform dust suction operation on the surfaces of cylindrical articles with different specifications.

[0073] In some embodiments, the dust suction mechanism 30 includes a suction head assembly 31. The suction head assembly 31 is located on the side of the component to be dust-removed, and the dust suction port 310 is arranged on the suction head assembly 31. Specifically, the dust suction port 310 is arranged on the side of the suction head assembly 31 facing the component to be dust-removed; the suction head assembly 31 is movably arranged on the base 10 along the radial direction of the component to be dust-removed, so as to facilitate adjusting the distance between the dust suction port 310 and the component to be dust-removed.

[0074] In the above embodiments, by adopting the design that the suction head assembly 31 is movably arranged on the base 10 along the radial direction of the component to be dust-removed, the position of the suction head assembly 31 can be adaptively adjusted according to the size of the component to be dust-removed, so that it is far from or close to the component to be dust-removed, so that the suction head assembly 31 can always maintain a relatively effective working distance from the surface of the component to be dust-removed with different diameters, achieving the purpose of efficient dust suction, and effectively solving the problem that the existing automatic dust suction device cannot effectively perform dust suction operation on the surfaces of cylindrical articles with different specifications. And in this embodiment, only the suction head assembly 31 moves along the radial direction of the component to be dust-removed, compared with the movement of the entire dust suction mechanism 30, the required moving space is smaller, which can reduce the occupation of space and is convenient for installation and layout.

[0075] Specifically, the dust suction port 310 is a strip-shaped opening. Preferably, the strip-shaped dust suction port 310 extends along the axial direction of the component to be dust-removed, and the dust suction port 310 is vertically arranged. Of course, in other alternative embodiments, the strip-shaped dust suction port 310 can also be inclined. This embodiment does not limit this, as long as it is ensured that the dust suction port 310 has a certain component in the vertical direction.

[0076] Preferably, the suction head assembly 31 is a telescopic structure. The user can adjust the telescopic length of the suction head assembly 31 according to the height of the component to be dusted. During the telescopic process of the suction head assembly 31, the length of the suction port 310 can also change accordingly to adapt to components to be dusted with different heights, ensuring that the dust suction device can achieve a good dust suction effect on components to be dusted with different heights and without creating cleaning dead angles.

[0077] In other alternative embodiments, the suction head assembly 31 can also be set to be liftable. The dust suction device further includes a lifting drive mechanism, which is connected to the suction head assembly 31. Specifically, the lifting drive mechanism is connected to the fixing bracket 311 of the suction head assembly 31. When the height of the component to be dusted is higher than the length of the suction head assembly 31, the suction head assembly 31 is first controlled to suck dust from the lower part of the component to be dusted at the initial first height position for a set time, and then it rises successively to the second height position, the third height position, the fourth height position... and then descends successively to achieve dust suction without dead angles and in all directions in the height direction and circumferential direction of the entire component to be dusted.

[0078] Furthermore, the suction head assembly 31 is movably arranged on the base 10 along the radial direction of the component to be dusted. The user can manually adjust the position of the suction head assembly 31 in the radial direction of the component to be dusted, or it can also be automatically adjusted electrically.

[0079] It should be noted that in this embodiment, the component to be dusted is usually a structure that cannot be cleaned with water and can only be dusted by adsorption, such as the filter of an air purifier, cultural relics, scrolls, etc.

[0080] In some embodiments, the base 10 includes a base 11. A rotating tray 111 is rotatably arranged on the base 11. The rotating tray 111 is used to mount the component to be dusted; an installation hole 110 is arranged on the base 11. The installation hole 110 is located on the outer peripheral side of the rotating tray 111 and extends along the radial direction of the rotating tray 111; the suction head assembly 31 is movably installed in the installation hole 110.

[0081] In the above embodiment, through the rotating tray 111 arranged on the base 11, the rotating tray 111 can support the component to be dusted and drive the component to be dusted to rotate together. When it is necessary to perform adsorption dust removal on the component to be dusted, the component to be dusted is directly installed on the rotating tray 111, and then the drive mechanism 20 is controlled to drive the rotating tray 111 to rotate, which can drive the component to be dusted to rotate together, effectively avoiding the problems that directly driving the component to be dusted by the drive mechanism 20 is likely to cause structural damage to the component to be dusted and the assembly connection is inconvenient.

[0082] In addition, through the mounting holes 110 provided on the outer peripheral side of the rotating tray 111 and extending in the radial direction of the rotating tray 111, the mounting holes 110 can play a guiding role. And by movably mounting the suction head assembly 31 in the mounting holes 110, when it is necessary to adapt to dust removal parts of different sizes, by adjusting the position of the suction head assembly 31 in the mounting holes 110, the purpose of ensuring that the suction port 310 of the suction head assembly 31 and the surface of the dust removal part can maintain a relatively effective working distance can be achieved, and the position adjustment is more convenient and flexible.

[0083] Specifically, the rotating tray 111 is arranged at the central position of the base 11. The dust removal part can be directly placed on the rotating tray 111, and the mounting holes 110 are strip-shaped holes extending in the radial direction of the rotating tray 111.

[0084] In some more preferred embodiments, a plurality of annular grooves of different sizes are provided on the top wall of the rotating tray 111, and the lower end of the dust removal part is embedded in the accommodating grooves of the corresponding sizes, further improving the stability of the dust removal part. In some variant embodiments, a plurality of annular protrusions of different sizes can also be provided on the top wall of the rotating tray 111, and the lower end of the dust removal part is sleeved on the annular protrusions of the corresponding sizes.

[0085] In other more preferred embodiments, a positioning shaft can also be fixedly arranged at the center of the rotating tray 111, and the dust removal part is sleeved on the positioning shaft. Through the cooperation of the provided positioning shaft and the dust removal part, the dust removal part can be effectively prevented from tipping over, and the stability of the dust removal part during rotation can be improved. More preferably, the positioning shaft is detachably mounted and fixed on the rotating tray 111. When the lower end of the dust removal part is closed, the positioning shaft is removed and the dust removal part is directly placed on the surface of the rotating tray 111.

[0086] Furthermore, the suction head assembly 31 can be fixed at different positions in the mounting holes 110 by means of snap connection, screw connection, plug connection, etc.

[0087] In some embodiments, the dust suction mechanism further includes an adjustable fixing structure, which is connected to the suction head assembly and is used to fix the suction head assembly at different positions in the mounting holes. Through the setting of the above adjustable fixing structure, the suction head assembly can be fixed at different positions in the mounting holes, making the position adjustment of the suction head assembly more convenient and fast, and ensuring that the suction head assembly can maintain a relatively effective working distance from dust removal parts of different diameters.

[0088] In some specific embodiments, the suction head assembly 31 includes a fixing bracket 311 and a dust suction pipe structure 312. The dust suction pipe structure 312 is installed within the fixing bracket 311, and the suction port 310 is provided on the dust suction pipe structure 312. The adjustable fixing structure is used to fix the fixing bracket 311 at different positions in the mounting hole 110. The adjustable fixing structure includes a connecting member and a locking member that are in threaded cooperation. The connecting member sequentially passes through the fixing bracket 311 and the mounting hole 110, and is locked and fixed to the base 11 through the locking member.

[0089] In the above embodiments, through the arrangement of the above adjustable fixing structure, the position adjustment of the suction head assembly 31 is made more convenient and rapid. The adjustable fixing structure includes a connecting member and a locking member. When it is desired to adjust the position of the suction head assembly 31, loosen the locking member, and then move the suction head assembly 31 closer to or farther away from the rotating tray 111. When the adjustment reaches the appropriate position, tighten the locking member again to lock and fix the fixing bracket 311 to the base 11, ensuring that the suction head assembly 31 can maintain a relatively effective working distance from dust removal parts of different diameters.

[0090] Specifically, the connecting member includes a bolt, and the locking member includes a nut. The fixing bracket 311 is provided with a screw hole. The bolt passes through the screw hole on the fixing bracket 311 and the mounting hole 110, and is then locked and fixed through the nut. When it is desired to adjust the position of the suction head assembly 31, loosen the nut, move the suction head assembly 31 along the mounting hole 110 closer to or farther away from the rotating tray 111. When the adjustment reaches the appropriate position, tighten the nut again to fix the suction head assembly 31.

[0091] In other alternative embodiments, a plurality of sets of connection holes may also be provided on the base 11. The plurality of sets of connection holes are arranged at intervals along the length direction of the mounting hole 110. According to the diameter of the dust removal part to be processed, the fixing bracket 311 can be selectively fixed in any set of connection holes through bolts.

[0092] In some embodiments, the base 10 further includes a top cover 12 and a support frame 13. The top cover 12 is arranged above the base 11; the support frame 13 is supported and fixed between the base 11 and the top cover 12; the top cover 12, the base 11, and the support frame 13 jointly enclose an installation space for accommodating and installing the dust removal part to be processed. The upper end of the dust removal part is rotatably engaged with the top cover 12, and the lower end is placed on the rotating tray 111; the support frame 13 is a telescopic structure, and / or the top cover 12 is detachably installed and fixed at different height positions of the support frame 13.

[0093] In the above embodiments, the component to be dust-removed is clamped between the top cover 12 and the base 11, which can further improve the stability of the component to be dust-removed and prevent it from tipping over. Moreover, by setting the support frame 13 as a telescopic structure, or detachably installing and fixing the top cover 12 at different height positions of the support frame 13, the height of the top cover 12 can be adaptively adjusted according to the height of the component to be dust-removed, so as to adapt to components to be dust-removed of different heights and ensure that components to be dust-removed of different height dimensions can be placed into the base 10 for vertical positioning thereof.

[0094] Optionally, a rotating top plate is rotatably arranged below the top cover 12, and the component to be dust-removed is clamped between the rotating top plate and the rotating tray 111. Or, in other alternative embodiments, a support shaft is detachably installed and fixed at the center of the top cover 12, and the upper end of the component to be dust-removed is sleeved on the support shaft.

[0095] In some more specific embodiments, the support frame 13 includes a plurality of scissor units to form a scissor-type lifting structure; or, the support frame 13 includes an outer sleeve and an inner telescopic rod. One end of the inner telescopic rod is slidably connected inside the outer sleeve, and the other end extends out of the outer sleeve and is fixedly connected to the top cover 12. A fastening screw is arranged on the outer sleeve. When the top cover 12 is adjusted to a proper position, the fastening screw can pass through the outer sleeve and abut against the inner telescopic rod to realize the locking and fixing of the outer sleeve and the inner telescopic rod.

[0096] In some embodiments, the support frame 13 includes a plurality of support rods, which are arranged at intervals along the circumference of the base 11, and the upper ends of the support rods penetrate through the top cover 12; a plurality of adjustment holes are arranged at intervals along the length direction of the support rods, and a fixing hole is arranged on the top cover 12. The fixing hole can be selectively fixed to any one of the adjustment holes through a connecting member to realize fixing the top cover 12 at different height positions of the support rods.

[0097] In the above embodiments, by adopting a plurality of support rods arranged at intervals along the circumference of the base 11, the support frame 13 can further improve the balance stability of the top cover 12. Moreover, through a plurality of adjustment holes arranged at intervals along the length direction of the support rods and a fixing hole arranged on the top cover 12, when the height of the top cover 12 needs to be adjusted, after the top cover 12 is adjusted to a proper position on the support rod, the fixing hole and the corresponding adjustment hole can be connected through a connecting member to realize fixing the top cover 12 at different height positions on the support rod, ensuring that components to be dust-removed of different height dimensions can be placed into the base 10 for vertical positioning thereof.

[0098] Specifically, through holes for the support rods to pass through are formed in the top cover 12. The connecting member is a screw or a pin. The fixing hole penetrates through the through hole and the outer peripheral wall of the top cover 12. The adjusting hole transversely penetrates through the support rod. When it is desired to adjust the height of the top cover 12, the position of the top cover 12 is adjusted along the length direction of the support rod so that the fixing hole corresponds to the adjusting hole at the corresponding height position. Then, the fixing hole and the adjusting hole are sequentially connected by a screw or a pin to fix the top cover 12.

[0099] Optionally, in this embodiment, the base 11 is square, and the number of support rods is three. The three support rods are arranged on three sides of the base 11. Such a design facilitates the user to pick up and place the part to be dusted from the other side of the base 11. The support rod is a hollow square tubular structure, which is light in weight and convenient for opening holes.

[0100] It should be noted that the height of the top cover 12 in this embodiment can be manually adjusted. Of course, it can also be designed to be automatically lifted and lowered. Manual adjustment can use bolts and pins for positioning and can stay at the set height. The automatic adjustment method can drive the top cover 12 to automatically lift and lower through a gear-rack transmission method. Specifically, the dust suction device further includes an automatic lifting mechanism. The automatic lifting mechanism includes a lifting motor, a gear, and a rack. The lifting motor is fixed on the base 11. The gear is connected to the output shaft of the lifting motor. The rack is slidably connected to the support rod. The lower end of the support rod is fixedly connected to the base 11, and the upper end is slidably penetrated and matched with the top cover 12. The upper end of the rack is fixedly connected to the top cover 12. The gear and the rack are meshed with each other. The lifting motor drives the gear to rotate, thereby driving the rack to move up and down, and then driving the top cover 12 to lift and lower. The top cover 12 can be stopped at the set height position by controlling the rotation angle of the gear.

[0101] In some embodiments, the lower end of the fixing frame 311 is supported and fixed on the base 11, and a support rib 3111 is fixedly arranged at the upper end of the fixing frame 311. A plug-in part 121 is arranged on the top cover 12, and a through hole is formed in the plug-in part 121. When the suction head assembly 31 moves away from or close to the part to be dusted, the support rib 3111 can move along the through hole.

[0102] In the above embodiment, by the support rib 3111 fixedly arranged at the top of the fixing frame 311 and the corresponding plug-in part 121 arranged on the top cover 12, when the suction head assembly 31 moves away from or close to the part to be dusted, the support rib 3111 can move along the through hole of the plug-in part 121. Through the cooperation of the support rib 3111 and the plug-in part 121, on the one hand, the suction head assembly 31 can be prevented from tipping over, and on the other hand, it can also play a guiding role.

[0103] Specifically, the support rib 3111 is a long strip-shaped rib extending in the horizontal direction, and the insertion part 121 and the mounting hole 110 are arranged vertically corresponding to each other. The insertion part 121 includes a support plate fixedly arranged on the top wall of the top cover 12. Optionally, the support plate is a U-shaped plate, which has higher structural stability. The fixing frame 311 includes a cylindrical main body with a strip-shaped opening on one side, and the strip-shaped opening corresponds to the dust suction port 310 and is provided for the dust suction port 310 to be exposed. The bottom edge of the fixing frame 311 extends horizontally outwards to form a support flange, and the bottom surface of the support flange is a plane that supports on the base 11. By providing the support flange, the structural stability of the fixing frame 311 can be improved. Screw holes are provided on the support flange, and the bolts of the adjustable fixing structure pass through the screw holes on the support flange and the mounting holes 110 on the base 11, and then are locked and fixed by nuts.

[0104] In some embodiments, the dust suction pipe structure 312 includes an outer cover cylinder 3121 and a suction pipe 3122. The outer cover cylinder 3121 is fixedly installed in the fixing frame 311, and the dust suction port 310 includes a first opening 31210 opened on the outer cover cylinder 3121; the suction pipe 3122 is arranged inside the outer cover cylinder 3121, and the dust suction port 310 further includes a second opening 31220 opened on the suction pipe 3122 corresponding to the first opening 31210.

[0105] In the above embodiments, by adopting the design of the outer cover cylinder 3121 for the dust suction pipe structure 312, the suction pipe 3122 can be installed inside the outer cover cylinder 3121, and then the outer cover cylinder 3121 is fixedly installed in the fixing frame 311, which is more convenient for the installation of the suction pipe 3122. The dust suction port 310 includes a first opening 31210 opened on the outer cover cylinder 3121 and a second opening 31220 opened on the suction pipe 3122 corresponding to the first opening 31210. The dust adsorbed from the part to be dusted enters the suction pipe 3122 through the first opening 31210 and the second opening 31220.

[0106] In the first relatively specific embodiment, the suction pipe 3122 is a flexible pipe with a surplus length, which is coiled inside the base 11. When the suction head assembly 31 moves radially along the rotary tray 111, even if it is pulled, it will not affect the connection reliability. The suction pipe 3122 is fixedly arranged inside the outer cover cylinder 3121. Both the first opening 31210 and the second opening 31220 are long strip-shaped openings opened in the vertical direction and are opposite to each other. By first installing the suction pipe 3122 inside the outer cover cylinder 3121 and then fixing the outer cover cylinder 3121 to the fixing frame 311, the outer cover cylinder 3121 serves as an intermediate connecting part. Since the material of the suction pipe 3122 is relatively soft, by installing it inside the outer cover cylinder 3121, the outer cover cylinder 3121 can more conveniently install and fix the suction pipe 3122, and at the same time, the outer cover cylinder 3121 can also play a role in protecting the suction pipe 3122.

[0107] In the second more specific embodiment, the suction pipe 3122 is rotatably arranged inside the outer casing cylinder 3121, and the first opening 31210 is a long strip-shaped opening formed along the axial direction of the outer casing cylinder 3121. There are multiple second openings 31220, and the second openings 31220 are short strip-shaped openings. The multiple short strip-shaped second openings 31220 correspond to the long strip-shaped first opening 31210, and the sum of the lengths of the multiple second openings 31220 is the same as the length of the first opening 31210.

[0108] Specifically, the multiple second openings 31220 are arranged in sequence along the axial direction of the suction pipe 3122 and are staggered from each other in the circumferential direction of the suction pipe 3122. With such a design, when the suction pipe 3122 rotates, the multiple second openings 31220 can sequentially and efficiently adsorb and remove dust from the surface of the part to be dusted from top to bottom or from bottom to top. Compared with the above-mentioned first embodiment, the opening area of the second opening 31220 is smaller, the suction force is more concentrated, and the dust collection effect is better.

[0109] Furthermore, the suction pipe 3122 adopts a rigid tubular structure, and the dust collection device further includes a rotary drive assembly for driving the suction pipe 3122 to rotate. Specifically, the lower end of the suction pipe 3122 passes through the mounting hole 110. The rotary drive assembly includes a rotary motor, a first gear, and a second gear. Among them, the rotary motor is fixed on the base 11, the first gear is connected to the output shaft of the rotary motor, the second gear is sleeved and fixed on the outer periphery of the lower end of the suction pipe 3122, and the first gear and the second gear are meshed with each other. The rotary motor can drive the first gear to drive the second gear to rotate and the suction pipe 3122 to rotate to achieve rotary dust collection. The lower end of the suction pipe 3122 and the first air duct 33 are rotatably and sealingly connected through a rotary sealing joint.

[0110] In some embodiments, the outer casing cylinder 3121 includes a first housing and a second housing. The first housing and the second housing are detachably connected, and after being connected, they can enclose and form an installation cavity for accommodating the suction pipe 3122.

[0111] In the above embodiments, by adopting the first housing and the second housing which are detachably connected, the outer casing cylinder 3121 is convenient for demolding, and at the same time, it is convenient for the installation of the suction pipe, and it is convenient for disassembling, assembling and maintaining the suction pipe 3122 or cleaning the outer casing cylinder 3121 in the later stage.

[0112] Specifically, both the first housing and the second housing are semi-cylindrical bodies. The two semi-cylindrical bodies are spliced with each other to form the outer casing cylinder 3121. The first housing and the second housing can be connected and fixed by means of clamping and / or screws. The first housing and the second housing wrap the suction pipe 3122 front and back, and the suction pipe 3122 can rotate inside it. The outer casing cylinder 3121 can not only install and fix the suction pipe 3122, but also serve as a carrier for supporting the rotation of the suction pipe 3122.

[0113] In some embodiments, the dust suction mechanism 30 further includes a dust collection box 32 and a dust suction motor 35. The dust collection box 32 is installed in the base 11, and the dust collection box 32 is connected to the suction pipe 3122 through a first air duct 33; the dust suction motor 35 is installed in the base 11, and the dust suction motor 35 is connected to the dust collection box 32 through a second air duct 34.

[0114] In the above embodiment, the dust suction motor 35 is connected to the suction head assembly 31 through a pipeline. The dust suction motor 35 is used to provide suction force for the suction head assembly 31. A dust collection box 32 is arranged between the dust suction motor 35 and the suction head assembly 31. The dust collection box 32 can filter and store pollutants such as dust and hair. By hiding the dust collection box 32, the first air duct 33, the second air duct 34 and the dust suction motor 35 inside the base 11, it is more beautiful and the overall structure is more compact.

[0115] Specifically, the base 11 is a hollow structure. The base 11 includes a base body and a cover body. The bottom of the base body is provided with an open mouth, and the cover body is detachably installed and fixed at the open end of the base body. The dust collection box 32, the first air duct 33, the second air duct 34 and the dust suction motor 35 are all installed in the base body.

[0116] Optionally, the dust collection box 32 can adopt a drawer structure, or the dust collection box 32 includes a box main body with an opening on the side and a box cover detachably installed on the opening side of the box main body. An opening is provided on one side wall of the base 11, and the opening allows the box cover to be exposed. With such a design, when the user wants to clean the dust inside the dust collection box 32, the box cover can be directly opened to clean the inside of the dust collection box 32, which is very convenient.

[0117] In some embodiments, the driving mechanism 20 includes a driving motor 21, a driving gear 22 and a driven gear 23. The driving motor 21 is installed on the base 11; the driving motor 21 is connected to the driving gear 22; the driving gear 22 meshes with the driven gear 23, and the driven gear 23 is fixedly connected to the rotating tray 111.

[0118] In the above embodiment, by using the driving gear 22 and the driven gear 23 as transmission components to drive the rotating tray 111 to rotate, the transmission is accurate and stable and not easily damaged.

[0119] Specifically, the bottom of the rotating tray 111 and the driven gear 23 can be fixed integrally by means of screws, interference fit, etc. The driving motor 21 can adopt a stepping motor. The stepping motor drives the driving gear 22 to rotate. The driving gear 22 and the driven gear 23 mesh with each other, so as to drive the rotating tray 111 and the dust removal parts thereon to rotate.

[0120] The following combines Figures 1 to 7, the structure and working principle of the dust suction device of this embodiment will be introduced.

[0121] In this embodiment, the dust suction device includes a base 10, a driving mechanism 20, and a dust suction mechanism 30. The base 10 is mainly used to fix the workpiece to be dusted that needs surface dust removal operation. The base 10 includes a base 11, a top cover 12, a support frame 13, a rotating tray 111, etc. The top cover 12 can adjust its height position up and down along the support frame 13 to ensure that workpieces to be dusted with different height dimensions can be placed in the base 10, facilitating their vertical positioning. The rotating tray 111 is located in the middle of the base 11. During the dust removal operation, the rotating tray 111 will drive the workpiece to be dusted to rotate together under the drive of the driving mechanism 20.

[0122] Furthermore, the dust suction mechanism 30 mainly consists of a dust suction motor 35, a first air duct 33, a second air duct 34, a dust collection box 32, and a suction head assembly 31. The dust suction motor 35 is connected to the suction head assembly 31 through an air duct and is responsible for providing suction force to the dust suction brush head. A dust collection box 32 is arranged in the middle of them to filter and store pollutants such as dust and hair. The dust collection box 32, the first air duct 33, the second air duct 34, and the dust suction motor 35 are placed inside the base 11. The suction head assembly 31 includes a fixed frame 311 and a dust suction pipe structure 312 assembled together. The suction head assembly 31 is vertically placed between the base 11 and the top cover 12, near the outer side of the rotating tray 111. Moreover, the dust suction pipe structure 312 can adjust its position along the radial direction of the rotating tray 111 together with the fixed frame 311, so as to move away from or close to the workpiece to be dusted that needs surface dust removal operation, ensuring that the suction head assembly 31 can always maintain a relatively effective working distance from the surface of any diameter workpiece to be dusted and achieving efficient dust suction.

[0123] As Figure 7 shown, the suction head assembly 31 mainly consists of a dust suction pipe structure 312 and a fixed frame 311. The dust suction pipe structure 312 includes an outer cover cylinder 3121 and a suction pipe 3122. A long strip-shaped second opening 31220 is arranged on the suction pipe 3122 and overlaps with the first opening 31210 reserved on the outer cover cylinder 3121 to achieve communication with the outside. Before starting the dust suction operation, first adjust the dust suction port 310 of the suction head assembly 31 to a position close to an appropriate distance from the surface of the workpiece to be dusted. When the dust suction motor 35 starts to work, the suction force is released from this dust suction port 310, and the dust suction operation begins. At this time, the rotating tray 111 starts to rotate, driving the workpiece to be dusted to rotate. After rotating multiple circles and the surface dust of the workpiece to be dusted is cleaned, the rotating tray 111 stops rotating, and the dust suction mechanism 30 stops working.

[0124] According to the embodiment of the present invention, in the second aspect, the present invention provides an air purifier, which includes a cylindrical filter screen and the dust suction device of any one of the above embodiments, and the dust suction device is used for dust removal on the surface of the filter screen.

[0125] In this embodiment, the above dust removal device is used in the air purifier to remove dust from the filter screen. One type of dust suction device can correspond to multiple specifications of filter screens, with good versatility, which can greatly reduce the mold production cost, is more conducive to the mass production of products, and effectively solves the problem that the existing dust removal device on the air purifier can only remove dust from a single specification of filter screen, with poor versatility, high production cost, and being not conducive to mass production.

[0126] Furthermore, in this embodiment, the filter screen is cylindrical, and the filter screen, as the part to be dust-removed, is rotatably installed in the installation position of the base 10. When the dust suction device adsorbs and removes dust from the filter screen, the distance between the dust suction port 310 of the dust suction device and the surface of the filter screen is within the set working distance range, and the lower limit value of the set working distance range is greater than 0, that is to say, the dust suction port 310 cannot be close to the surface of the filter screen.

[0127] Although the embodiments of the present utility model have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A dust collecting device capable of removing dust from the surface of a cylindrical dust-removing object, characterized in that: The dust collecting device comprises: A base (10) having a mounting position for rotatably mounting the dust-removing part; A driving mechanism (20), mounted on the base (10), and used for driving the dust-removing object to rotate; A dust suction mechanism (30), wherein a dust suction port (310) is provided on a side of the dust suction mechanism (30) facing the part to be dusted; The dust suction mechanism (30) is at least partially movably arranged on the base (10) along the radial direction of the object to be dusted, so as to adjust the distance between the dust suction port (310) and the object to be dusted.

2. The dust collecting device according to claim 1, characterized in that: The dust collecting mechanism (30) comprises: The suction head assembly (31) is located on the side of the object to be dusted, the dust suction port (310) is provided on the suction head assembly (31), and the suction head assembly (31) is movably arranged on the base (10) along the radial direction of the object to be dusted.

3. The dust collecting device according to claim 2, characterized in that: The base (10) comprises: A base (11), wherein a rotating tray (111) is rotatably provided on the base (11), and the rotating tray (111) is used to mount the dust-removing part; The base (11) is provided with a mounting hole (110), the mounting hole (110) is located on the outer peripheral side of the rotating tray (111) and extends along the radial direction of the rotating tray (111); The suction head assembly (31) is movably mounted in the mounting hole (110).

4. The dust collecting device according to claim 3, characterized in that: The dust collection mechanism also includes: An adjustable fixing structure is connected to the suction head assembly (31) and is used to fix the suction head assembly (31) at different positions in the mounting hole (110).

5. The dust collecting device according to claim 3, characterized in that: The base (10) further comprises: A top cover (12) is arranged above the base (11); A support frame (13) is supported and fixed between the base (11) and the top cover (12), wherein the top cover (12), the base (11) and the support frame (13) together enclose an installation space for accommodating and installing the dust removal part; The support frame (13) is a telescopic structure, and / or the top cover (12) is detachably mounted and fixed at different height positions of the support frame (13).

6. The dust collecting device according to claim 5, characterized in that: The support frame (13) comprises: A plurality of support rods are arranged at intervals along the circumference of the base (11), and the upper ends of the support rods penetrate the top cover (12); The support rod is provided with a plurality of adjustment holes at intervals along the length direction, and the top cover (12) is provided with a fixing hole, and the fixing hole can be selectively fixed to any of the adjustment holes through a connecting piece to achieve fixing of the top cover (12) at different height positions of the support rod.

7. The dust collecting device according to claim 5 or 6, characterized in that: The suction head assembly (31) comprises a fixing frame (311), the lower end of the fixing frame (311) is supported and fixed on the base (11), and the upper end of the fixing frame (311) is fixedly provided with a supporting rib (3111); The top cover (12) is provided with a plug-in portion (121), and a through hole is provided in the plug-in portion (121), and the supporting rib (3111) can move along the through hole when the suction head assembly (31) moves away from or approaches the dust removal object.

8. The dust collecting device according to claim 7, characterized in that: The suction head assembly (31) further comprises a dust suction pipe structure (312) installed in the fixing frame (311), and the dust suction pipe structure (312) comprises: An outer cover tube (3121) is fixedly mounted in the fixing frame (311), and the dust suction port (310) comprises a first opening (31210) provided on the outer cover tube (3121); The air suction pipe (3122) is arranged in the outer cover tube (3121), and the dust suction port (310) further includes a second opening (31220) opened on the air suction pipe (3122) corresponding to the first opening (31210).

9. The dust collecting device according to claim 8, characterized in that: The outer cover tube (3121) comprises a first shell and a second shell, wherein the first shell and the second shell are detachably connected and can enclose and form an installation cavity capable of accommodating the air intake pipe (3122) after being connected.

10. The dust collecting device according to claim 8, characterized in that: The dust suction mechanism (30) further comprises: A dust collecting box (32) is installed in the base (11), and the dust collecting box (32) is connected to the air intake pipe (3122) via a first air guide pipe (33); The dust suction motor (35) is installed in the base (11), and the dust suction motor (35) is connected to the dust collecting box (32) via a second air duct (34).

11. An air purifier, characterized in that: It comprises a cylindrical filter screen and the dust collecting device according to any one of claims 1 to 10, wherein the dust collecting device is used to remove dust from the surface of the filter screen.

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