Dust removal device

Abstract

The utility model provides a dust removal device which comprises a long and thin shell, a dust removal device body and a dust removal device body, the shell is provided with a cavity and a dust suction opening communicated with the cavity and the outside, and the dust suction opening is formed in the end of the shell; the driving source is arranged in the cavity, and the driving source can generate dust collection power; wherein the cross section of the shell is circular, so that a user can hold and operate the shell. A user can hold and operate the dust removal device, dust removal can be conveniently carried out on an area needing fine dust removal, and holding operation is convenient and comfortable.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning appliances, in particular to a dust removal device. Background Art

[0002] With the development of society and the continuous improvement of people's living standards, vacuum cleaners, as a household cleaning appliance, have become increasingly common in homes. A vacuum cleaner typically uses a motor to drive an impeller to rotate at high speed, creating negative pressure within a sealed housing. This draws dirt, debris, and other contaminants into the air. The air then separates the contaminants from the air, retaining them in a designated location, while clean air is expelled from the cleaner.

[0003] However, in the process of implementing a variety of existing vacuum cleaners, the inventors of the present utility model found that the existing vacuum cleaners were too large, requiring users to hold them with both hands to operate them, and prolonged use could easily cause muscle soreness, which was very inconvenient. Summary of the Invention

[0004] In view of this, the utility model provides a dust removal device, which has an elongated shell with a circular cross-section for users to hold and operate, thereby achieving fine dust removal and being convenient and comfortable to use.

[0005] The utility model provides a dust removal device, comprising: a shell, which is slender and has a cavity, and a dust suction port connecting the cavity and the outside, and the dust suction port is arranged at the end of the shell; a driving source, which is arranged in the cavity and can generate dust suction power; wherein the cross-section of the shell is circular so that the user can hold it and operate it.

[0006] Optionally, the cross-sectional diameter of the shell is 2.5 cm and the length of the shell is 15 cm.

[0007] Optionally, the dust removal device further includes a cleaning accessory and a filter module, wherein the cleaning accessory is disposed in the cavity and at least partially extends out of the suction port, and the cleaning accessory cleans the surface to be cleaned by movement; and the filter module is disposed in the cavity.

[0008] Optionally, the driving source includes a first driving source and a second driving source, the first driving source is used to drive the cleaning accessory to move, and the second driving source is used to provide wind pressure so that external garbage can enter the cavity through the suction port.

[0009] Optionally, the shell includes a detachable first shell and a second shell, the first shell and the second shell together enclose the cavity, and the dust suction port is arranged on the first shell; the shell also includes an installation module, the installation module is installed on the first shell and / or the second shell, the first drive source is installed on the installation module, and the cleaning accessories are detachably installed on the output end of the first drive source.

[0010] Optionally, the profile of one side of the first shell close to the suction port gradually decreases, and the overall thickness of the first shell remains uniform.

[0011] Optionally, the second driving source includes centrifugal fan blades and a wind pressure motor, the power shaft of the wind pressure motor is plugged into the centrifugal fan blades, the wind pressure motor is used to drive the centrifugal fan blades to rotate, and the centrifugal fan blades rotate to guide the airflow toward the periphery.

[0012] Optionally, the centrifugal fan blade includes a chassis and a blade module, and the blade module is fixed on the chassis and located on a side of the chassis facing the dust suction port.

[0013] Optionally, the chassis is conical and has an assembly hole at the center. The angle between the side wall of the cone and the axis is 63°, and the chassis is mounted on the power shaft of the wind pressure motor through the assembly hole.

[0014] Optionally, the filter module divides the cavity into an installation cavity and a dust cavity, the dust cavity and the dust suction port are connected and coaxially arranged, the installation cavity and the dust cavity are cylindrical with the same cross-sectional shape, and the cross-sectional shape of the dust suction port is circular.

[0015] Compared with the prior art, the dust removal device of the utility model has the following beneficial effects: through the slender shell, the cross section of which is circular, the user can hold and operate it, thereby achieving fine dust removal and being convenient and comfortable to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. 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 drawings without paying any creative work.

[0017] Figure 1 This is an overall schematic diagram of a dust removal device according to an embodiment of the present utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of the section along AA;

[0019] Figure 3 This is an exploded schematic diagram of the internal structure of a dust removal device according to an embodiment of the present invention;

[0020] Figure 4 This is an overall schematic diagram of the first housing of an embodiment of the present utility model;

[0021] Figure 5 It is an orthographic projection view of the first shell of the embodiment of the utility model;

[0022] Figure 6 yes Figure 4 Schematic diagram of the section along BB;

[0023] Figure 7 This is an overall schematic diagram of the cleaning accessory of an embodiment of the utility model;

[0024] Figure 8 yes Figure 7 Schematic diagram of the section along CC;

[0025] Figure 9 This is an overall schematic diagram of a cleaning accessory according to another embodiment of the present invention;

[0026] Figure 10 yes Figure 9 Schematic diagram of the section along DD;

[0027] Figure 11 This is a first overall schematic diagram of a cleaning accessory according to another embodiment of the present invention;

[0028] Figure 12 This is a second overall schematic diagram of a cleaning accessory according to another embodiment of the present invention;

[0029] Figure 13 This is an exploded schematic diagram of a cleaning accessory according to another embodiment of the present invention;

[0030] Figure 14 yes Figure 11 Schematic diagram of the section along EE;

[0031] Figure 15 This is an orthographic projection view of a cleaning accessory according to another embodiment of the present invention;

[0032] Figure 16 yes Figure 2 F enlarged view in the figure;

[0033] Figure 17 This is an overall schematic diagram of the installation module of an embodiment of the present utility model;

[0034] Figure 18 This is an exploded schematic diagram of a filter module according to an embodiment of the present invention;

[0035] Figure 19 This is an overall schematic diagram of the filter module of an embodiment of the present utility model;

[0036] Figure 20 This is a three-dimensional schematic diagram of the first filter element of an embodiment of the present utility model;

[0037] Figure 21 It is an orthographic projection view of the first filter element of the embodiment of the present utility model;

[0038] Figure 22 yes Figure 2 G enlarged image in;

[0039] Figure 23 It is an overall schematic diagram of the installation unit of an embodiment of the utility model;

[0040] Figure 24 yes Figure 23 Schematic diagram of the section along the HH;

[0041] Figure 25 This is an overall schematic diagram of the installation cover of an embodiment of the utility model;

[0042] Figure 26 This is an overall schematic diagram of the centrifugal fan blade according to an embodiment of the present invention;

[0043] Figure 27 This is an orthographic projection view of a centrifugal fan blade according to an embodiment of the present invention;

[0044] Figure 28 This is an overall schematic diagram of the air guide member of an embodiment of the utility model;

[0045] Figure 29 yes Figure 2 The enlarged view of point I in FIG.

[0046] Figure 30 This is an overall schematic diagram of the dust shield of the centrifugal fan blade according to an embodiment of the present invention;

[0047] Figure 31 This is an overall schematic diagram of a lighting module according to an embodiment of the present invention;

[0048] Figure 32 It is an overall schematic diagram of the baffle of an embodiment of the present utility model.

[0049] Reference numerals in the figure: 1, dust removal device; 100, housing; 101, cavity; 101a, mounting cavity; 101b, dust cavity; 102, dust suction port; 110, first housing; 111, mounting column; 111a, mounting protrusion; 112, connecting rib; 113, mounting notch; 120, second housing; 130, mounting module; 131, first fixing portion; 131a, positioning groove; 132, second fixing portion; 133, connecting portion; 200, cleaning accessory; 210, base; 211, mounting enclosure; 212, mounting shaft; 220, cleaning brush; 200', cleaning accessory; 210', base; 21 1', first base; 211a', suction hole; 212', connector; 213', second base; 213a', mounting shaft; 213a1', assembly chamfer; 220', cleaning part; 213b', mounting chamfer; 200", cleaning accessory; 210", base; 211", first base; 211a", suction hole; 211b", hair implant; 211b1", powder outlet; 211c", storage part; 211c1", storage cavity; 211c11", opening; 212", connector; 213", second base; 213a", mounting shaft; 220", cleaning element; 221", bristles Group; 300, first driving source; 310, output shaft; 400, filter module; 410, first filter element; 411, filter hole; 412, first end; 413, second end; 414, reinforcement ring; 420, second filter element; 430, mounting bracket; 431, first mounting portion; 432, second mounting portion; 432a, annular groove; 432b, handle portion; 433, mounting plate; 500, second driving source; 510, wind pressure motor; 511, power shaft; 520, centrifugal fan blade; 521, chassis; 521a, assembly hole; 521a1, mounting bevel; 522, blade module; 522a, blade ;522a1, first side; 522a2, second side; 522b, first blade; 522c, second blade; 530, mounting unit; 531, mounting seat; 532, mounting cover; 532a, through hole; 532b, heat dissipation hole; 533, connecting element; 534, mounting cylinder; 540, air guide; 541, first groove; 542, second groove; 600, sealing ring; 700, dust shield; 710, mounting end; 720, rotating end; 730, rotating shaft; 800, lighting module; 810, circuit board; 820, light-emitting part; 830, baffle; 831, positioning block; 840, light-blocking part. DETAILED DESCRIPTION

[0050] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0051] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this utility model belongs. The terms used in this specification and in the description of this utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used in this specification includes any and all combinations of one or more of the relevant listed items.

[0052] See also Figures 1 to 32 The embodiment of the utility model provides a dust removal device 1, including a shell 100, a cleaning accessory 200, a first driving source 300, a filter module 400 and a second driving source 500. The shell 100 has a cavity 101 and a dust suction port 102 connecting the cavity 101 and the outside world. The cleaning accessory 200 is arranged in the cavity 101 and partially extends out of the dust suction port 102. The cleaning accessory 200 cleans the surface to be cleaned by movement. The first driving source 300 is arranged in the cavity 101, and the first driving source 300 is used to drive the cleaning accessory 200 to move. The filter module 400 is arranged in the cavity 101. The second driving source 500 is arranged in the cavity 101, and the second driving source 500 is used to provide wind pressure so that external garbage can enter the cavity 101 through the dust suction port 102.

[0053] The housing 100 includes a detachable first shell 110 and a detachable second shell 120. Both the first shell 110 and the second shell 120 are elongated cylindrical structures with a diameter of approximately 2.5 cm. The first shell 110 and the second shell 120 are secured together by screws. In the assembled state, the housing 100 is approximately 15 cm long. The first shell 110 and the second shell 120 together enclose a cavity 101. A dust suction port 102 is located at the end of the first shell 110 facing away from the second shell 120. The filter module 400 separates the cavity 101 into an installation cavity 101a and a dust cavity 101b. The dust cavity 101b and the dust suction port 102 are connected and coaxially arranged. The installation cavity 101a and the dust cavity 101b are cylindrical in shape with identical cross-sections, while the dust suction port 102 has a circular cross-section. It should be noted that, in the embodiment of the present invention, the first shell 110 and the second shell 120 are in the shape of an elongated cylinder for the convenience of user holding. Their size and shape are slightly similar to the pen used in daily life, which is beneficial for users to clean small precision equipment. However, the present invention does not limit the specific shape of the first shell 110 and the second shell 120. For example, in other embodiments of the present invention, the first shell 110 or the second shell 120 can be a shell structure with an elliptical cross-section, or a relatively short and thick cylindrical shape with a larger diameter. It should also be noted that the present invention does not limit the specific shapes of the mounting cavity 101a, the dust cavity 101b, and the dust suction port 102. In the embodiment of the present invention, the mounting cavity 101a, the dust cavity 101b, and the dust suction port 102 are circular in cross-section to achieve uniform suction, maintain a consistent and aesthetically pleasing appearance, and maintain a consistent thickness of the housing 100. However, the present invention does not limit the specific shapes of the mounting cavity 101a, the dust cavity 101b, and the dust suction port 102. For example, in some embodiments of the present invention, the mounting cavity 101a and the dust cavity 101b may have an elliptical or polygonal cross-section, the dust suction port 102 may have a waist-shaped or rectangular cross-section, and the dust suction port 102 may be positioned offset from the axis of the dust cavity 101b. In addition, it should be understood that the present invention does not limit the connection method between the first housing 110 and the second housing 120. In other embodiments of the present invention, the first housing 110 and the second housing 120 may be fixed by snapping or plugging, or opened and closed by a rotating shaft connection and a locking structure.

[0054] In addition, it should be noted that the airflow direction refers to the direction in which the gas flows in the cavity 101. In the embodiment of the present utility model, the airflow direction is roughly the axial direction of the first shell 110 and the second shell 120. In some positions of the cavity 101, it will be slightly offset in the radial direction of the cavity 101 due to the obstruction of the wind guide structure and internal parts. However, in the embodiment of the present utility model, the airflow direction described when defining the direction refers to the axial direction of the first shell 110 and the second shell 120, and the outer contour of the first shell 110 and the second shell 120 is cylindrical, and its axis is the central axis of the corresponding cylinder.

[0055] The cleaning accessory 200 includes a base 210 and cleaning bristles 220. The cleaning bristles 220 are arranged in an array on the base 210. The side of the base 210 where the cleaning bristles 220 are mounted has a mounting block 211 that partially encloses the base of the cleaning bristles 220 mounted on the base 210. A mounting shaft 212 having a regular hexagonal cross-section is provided on the side of the base 210 facing away from the cleaning bristles 220. The mounting shaft 212 is plugged into the output shaft 310, thereby enabling power transmission between the cleaning accessory 200 and the first drive source 300.

[0056] Preferably, the mounting shaft 212 is made of magnetic material, and the end of the output shaft 310 of the first driving source 300 is also provided with magnetic material, and the magnetism of the two is opposite. While the cleaning accessory 200 is installed by plug-in, it can also be detachably installed by magnetic attraction. Compared with the tight-fitting plug-in installation method, the installation and disassembly process of the magnetic assembly is more labor-saving and easy, and there is a sense of being fully assembled.

[0057] It should be noted that, in the embodiment of the present invention, in order to ensure the strength of the base 210 and prevent the excessively long base 210 and the output shaft 310 from being deformed or damaged when subjected to force, the cleaning accessory 200 is arranged in a manner that partially extends from the dust suction port 102 into the dust chamber 101b. However, in some embodiments of the present invention, the base 210 may not be extended into the dust suction port 102, that is, the cleaning accessory 200 is arranged to extend entirely from the dust suction port 102. In this case, part of the output shaft 310 extends from the dust suction port 102, and the base 210 and the output shaft 310 are fixedly assembled.

[0058] Another embodiment of the present invention further provides a cleaning accessory 200 ′. The cleaning accessory 200 ′ includes a base 210 ′ and a cleaning portion 220 ′. The cleaning portion 220 ′ is fixed to the base 210 ′. The base 210 ′ and the cleaning portion 220 ′ are described in sections below.

[0059] For the above-mentioned base 210', the base 210' includes a first base 211', a connector 212' and a second base 213' connected in sequence. The first base 211' is a cylindrical ring structure. The first base 211' is coaxially provided with a cylindrical suction hole 211a'. The second base 213' is a cylindrical structure, and the outer contour diameter of the second base 213' is smaller than the outer contour diameter of the first base 211'. The second base 213' is provided with a mounting shaft 213a' on the side away from the first base 211'. The connector 212' is a rod structure, and the connector 212' is arranged at an angle of 20° to the axis of the first base 211'. The number of connectors 212' is 3, and the 3 connectors 212' are arranged in a circular array around the axis of the first base 211'. One end of the connector 212' is connected to the first base 211', and the other end is connected to the second base 213'. After the user starts the cleaning accessory 200', the garbage swept by the cleaning part 220' passes through the suction hole 211a' of the first base 211', and then goes around the side of the second base 213' and is sucked into the dust suction port 102. The structural setting of the base 210' facilitates the suction of the swept garbage into the dust removal device 1. The garbage does not need to go around the outside of the first base 211' and then be sucked into the dust chamber 101b. Because the outside of the first base 211' deviates from the dust suction port 102, the suction force here is relatively small, and the garbage is not easily sucked into the dust chamber 101b. However, the present invention does not limit the specific structure of the base 210'. In the embodiment provided by the present invention, the outer contours of the first base 211' and the second base 213' and the suction hole 211a' are all set to be cylindrical so that the cleaning accessory 200' can rotate and clean the garbage. The operation during the cleaning process is smoother, and the suction force of the dust removal device 1 when sucking in the garbage swept by the cleaning accessory 200' is more balanced. However, the present invention does not limit the specific shapes of the first base 211' and the second base 213'. In other embodiments of the present invention, the specific shapes of the outer contours of the first base 211' and the second base 213' and the suction hole 211a' are limited. In other embodiments of the present invention, the outer contours of the first base 211' and the second base 213' and the suction hole 211a' can also be elliptical or polygonal such as a triangle, rectangle, or hexagon.It should be understood that in the embodiment of the present invention, the connecting body 212' is set at an angle of 20° to the axis of the first base 211' in order to ensure the connection strength between the first base 211' and the second base 213', that is, to reduce the outer diameter of the second base 213' and reasonably avoid the air flow channel, but the present invention does not make specific limitations on this. In some embodiments of the present invention, the angle between the connecting body 212' and the axis of the first base 211' can be 35°, 40° or 53°, etc., or in some embodiments, the outer diameters of the first base 211' and the second base 213' are the same. In this case, the connecting body 212' can be set perpendicular to the first base 211', that is, the angle between the axis of the connecting body 212' and the first base 211' is 0°. It should also be understood that the number of connectors 212' is three for the overall strength of the base 210' and to avoid space in the air flow channel, but the present invention does not limit the specific shape and number of the connectors 212'. In other embodiments of the present invention, the number of connectors 212' can also be two or five or more, and multiple connectors 212' are distributed in a circular array around the axis of the first base 211', or while ensuring the connection strength between the first base 211' and the second base 213', the number of connectors 212' can be set to only one.

[0060] For the above-mentioned cleaning part 220', the cleaning part 220' is a cylindrical ring structure, the cleaning part 220' is suede, the cleaning part 220' is fixed to the first base 211', and the cleaning part 220' does not block the suction hole 211a'. According to the characteristics of suede and microfiber synthetic leather having relatively fine surface fibers, the cleaning part 220' can absorb oil while cleaning the surface to be cleaned, so that the user can remove garbage from the area to be cleaned when using the dust removal device 1 of the embodiment of the present invention, and at the same time, it can also wipe off oil or fingerprints on the surface to be cleaned, so that the user does not need to clean the oil twice, the operation is convenient, and the cleaning ability is strong. It should be noted that the present invention does not limit the specific material of the cleaning part 220' to suede. For example, in some embodiments of the present invention, the cleaning part 220' can be made of microfiber synthetic leather or other materials with a certain hardness and wear resistance, and can absorb grease.

[0061] Preferably, to facilitate installation of the cleaning accessory 200' on the first drive source 300, the cleaning accessory 200' is provided with an installation chamfer 213b' on the side of the second base 213' facing away from the first base 211'. Because when the cleaning accessory 200' is installed on the first shell 110, the base 210' is partially housed within the dust chamber 101b. When installing the cleaning accessory 200', the installation shaft 213a' on the first base 211' needs to be extended from the dust suction port 102 into the dust chamber 101b. The provision of the installation chamfer 213b' facilitates the central alignment of the cleaning accessory 200' during installation, thereby facilitating user disassembly and replacement, thereby improving the user experience. The installation shaft 213a' is also provided with an assembly chamfer 213a1', which functions similarly to the aforementioned installation chamfer 213b' and will not be described in detail here.

[0062] Another embodiment of the present invention further provides a cleaning accessory 200", the cleaning accessory 200" includes a base 210" and a cleaning element 220", with respect to the base 210", the base 210" includes a first base 211", a connecting body 212" and a second base 213" connected in sequence. The first base 211" is a cylindrical ring structure, the cleaning element 220" is a bristle 220, the cleaning element 220" is fixed on the first base 211", the first base 211" is coaxially provided with a cylindrical suction hole 211a, and the second base 213" is a cylindrical structure, and the outer contour diameter of the second base 213" is smaller than the outer contour diameter of the first base 211". A mounting shaft 213a"212 is provided on the side of the second base 213" facing away from the first base 211". The connecting body 212" is a rod structure, and the connecting body 212" is arranged at an angle of 20° to the axis of the first base 211". The number of connecting bodies 212" is 3, and the 3 connecting bodies 212" are arranged in a circular array around the axis of the first base 211". One end of the connecting body 212" is connected to the first base 211", and the other end is connected to the second base 213". When the user is in use, after starting the cleaning accessory 200", the garbage swept by the cleaning part passes through the suction hole 211a" of the first base 211", and then goes around the side of the second base 213" and is sucked into the suction port 102. The structure of the base 210" is convenient for sucking the cleaned garbage into the dust removal device 1. The garbage does not need to go around the outside of the first base 211" and then be sucked into the dust chamber 101b. Because the outside of the first base 211" deviates from the dust suction port 102, the suction force here is small, and the garbage is not easy to be sucked into the dust chamber 101b. However, the present invention does not limit the specific structure of the base 210". In the embodiment provided by the present invention, the outer contours of the first base 211", the second base 213" and the suction hole 211a" are all set to be cylindrical so that the cleaning accessory 200" can rotate and clean in the process. The operation during the cleaning process is smoother, and the suction force of the dust removal device 1 when sucking in the garbage swept by the cleaning accessory 200" is more balanced. However, the present invention does not limit the specific shapes of the first base 211" and the second base 213". In other embodiments of the present invention, the specific shapes of the outer contours of the first base 211", the second base 213" and the suction hole 211a" are limited. In other embodiments of the present invention, the outer contours of the first base 211", the second base 213" and the suction hole 211a" can also be elliptical or polygonal such as a triangle, rectangle, or hexagon.It should be understood that in the embodiment of the present invention, the connection body 212" is set at an angle of 20° to the axis of the first base 211" in order to ensure the connection strength of the first base 211" and the second base 213", that is, to reduce the outer diameter of the second base 213", and to reasonably avoid the air flow channel. However, the present invention does not make specific limitations on this. In some embodiments of the present invention, the angle between the connection body 212" and the axis of the first base 211" can be 35°, 40° or 53°, etc., or in some embodiments, the outer diameters of the first base 211" and the second base 213" are the same. In this case, the connection body 212" can be perpendicular to the first base 211". The setting is that the angle between the axis of the connector 212" and the first base 211" is 0°. It should also be understood that the number of connectors 212" is 3 for the overall strength of the base 210" and the spatial avoidance of the air flow channel, but the present invention does not limit the specific shape and number of the connectors 212". In other embodiments of the present invention, the number of connectors 212" can also be 2 or 5 or more, and multiple connectors 212" are distributed in a circular array around the axis of the first base 211", or while ensuring the connection strength between the first base 211" and the second base 213", the number of connectors 212" can be set to only 1.

[0063] For the above-mentioned first base 211", the first base 211" includes a hair planting piece 211b" and a material storage piece 211c". The hair planting piece 211b" and the material storage piece 211c" are both circular columnar structures, and their cross-sectional profile shapes and sizes are the same. The hair planting piece 211b" and the material storage piece 211c" are detachably installed by screwing.

[0064] Next, the hair implanting part 211b" and the material storage part 211c" will be described in sections.

[0065] For the above-mentioned bristle implant 211b", the bristle implant 211b" is in the shape of a circular cylinder as a whole, and the cleaning element 220" is fixed on the bristle implant 211b". Specifically, multiple cleaning elements 220" are arranged in an array to form a cylindrical bristle group 221". The cleaning accessory 200" has 5 bristle groups 221". The 5 bristle groups 221" are fixed on the bristle implant 211b" in a circumferential array around the axis of the bristle implant 211b". The cleaning elements 220" are arranged in clusters and at intervals to facilitate the dust removal device 1 to suck in garbage from the surface to be cleaned, and the garbage is not easily stuck between the cleaning elements 220", and with the same number of cleaning elements 220", In this case, the cleaning element 220" is arranged in a single cluster to reduce the cross-sectional area of ​​the bristle group 221", and the user can also more easily clean the garbage attached to the cleaning element 220". It should be noted that the present invention does not limit the specific number of bristle groups 221" and the cross-sectional shape of the bristle groups 221". In other embodiments of the present invention, the number of bristle groups 221" can be 2, 3 or 7 or more, and the multiple bristle groups 221" are fixed on the bristle implant 211b" in a circular array around the axis of the bristle implant 211b", and the cross-sectional shape of the bristle group 221" can also be a polygon such as an ellipse, a triangle or a rectangle.

[0066] Regarding the above-mentioned material storage piece 211c", the material storage piece 211c" is an annular columnar structure, and a material storage cavity 211c1" is provided in the material storage piece 211c". The material storage cavity 211c1" has an opening 211c11" on the side facing the hair implanting piece 211b". When the hair implanting piece 211b" is installed on the material storage piece 211c", the opening 211c11" can be blocked. The storage chamber 211c1" is used to accommodate powders such as carbon powder, talcum powder or fluff powder that can absorb grease. Correspondingly, the bristle implant 211b" is provided with 5 cylindrical powder outlet holes 211b1". The 5 powder outlet holes 211b1" are distributed in a circular array around the axis of the bristle implant 211b". The powder outlet holes 211b1" and the bristle group 221" are spaced apart and located on the circular contour line of the same diameter, and the cross-sectional diameter of the powder outlet holes 211b1" is the same as the cross-sectional diameter of the bristle group 221". The setting of the storage part 211c" allows the user to release cleaning powder through the powder outlet holes 211b1" to assist in cleaning while cleaning the surface to be cleaned, thereby improving the user experience. On the other hand, the powder outlet holes 211b1" and the bristle group 221" are located on the circular contour line of the same diameter. When the cleaning accessory 200" rotates for cleaning, the powder outlet holes The position where 211b1" discharges powder overlaps with the movement trajectory of the cleaning element 220". The user does not need to move the position of the cleaning accessory 200" with the naked eye, and the bristles can contact and evenly spread the cleaning powder on the cleaned surface. It should be noted that the present invention does not limit the type and function of the powder contained in the storage chamber 211c1". In other embodiments of the present invention, the cleaning accessory 200" can also be used in other scenarios where powder needs to be applied to the working area, such as applying magnesium powder with water absorption to the working area. It should also be noted that in the embodiment of the present invention, the powder outlet 211b1" is arranged in a cylindrical shape and in a number of 5 and the bristle group 221" is evenly spaced, which can make the powder output of the cleaning accessory 200" more uniform, and the bristle group 221" can also evenly spread the cleaning powder on the surface to be cleaned.

[0067] Furthermore, in order to control the amount of powder discharged from the powder outlet 211b1", a non-woven fabric (not shown) is provided at the position of the bristle piece 211b" 211b" corresponding to the powder outlet 211b1". The non-woven fabric is bonded to the side of the bristle piece 211b" facing the storage piece 211c". The non-woven fabric is used to block the powder in the storage cavity 211c1" from being released directly from the powder outlet 211b1", so that the user cannot control the amount of powder discharged, thereby causing waste or secondary garbage requiring additional cleaning. The setting of the non-woven fabric prevents the powder in the storage cavity 211c1" from being released directly from the powder outlet 211b1" without the action of external force. When the user needs powder for cleaning during use, he / she knocks the cleaning accessory 200" on the surface to be cleaned. The powder will be subjected to force and will be released from the powder outlet 211b1" to the surface to be cleaned after passing through the fiber holes inside the non-woven fabric. It should be noted that, although the non-woven fabric is not shown in the embodiment of the present invention, in order to facilitate the processing and assembly of the non-woven fabric, the non-woven fabric is configured into a circular ring and adapted to the contour of the storage cavity 211c1". However, the present invention does not limit the specific shape of the non-woven fabric. For example, in some embodiments of the present invention, the non-woven fabric may be in the form of multiple circles, and multiple non-woven fabrics are individually fixed to the hair implant 211b" and at least partially block the powder outlet 211b1". It should also be noted that the present invention does not limit the non-woven fabric on the hair implant 211b". The installation method is limited. For example, in other embodiments of the present invention, the non-woven fabric can be set as a separate part and directly assembled in the storage cavity 211c1". The user needs to take out the non-woven fabric first when replenishing the powder. It should also be understood that in other embodiments of the present invention, the hair implant 211b" may not be provided with a non-woven fabric, but other fabrics with fiber meshes, such as knitted fabrics, etc., so that the powder in the storage cavity 211c1" can seep out of the fabric under the action of external force, thereby achieving the purpose of controlling the powder output.

[0068] It should be noted that in other embodiments of the application, the cleaning element 220" can also be a sponge head or a silicone head, etc., so as to remove the garbage attached to the surface to be cleaned or evenly apply the cleaning powder to the working surface. On the other hand, the detachable installation between the bristle implant 211b" and the storage part 211c" is achieved by screwing in order to increase the connection area between the bristle implant 211b" and the storage part 211c" to achieve the sealing effect of the storage chamber 211c1", but the present invention is not limited to this. In some embodiments of the present invention, the bristle implant 211b" and the storage part 211c" can also be fixedly installed by other means such as clipping or bonding.

[0069] For the above-mentioned first driving source 300, the first driving source 300 is a motor, the housing 100 also includes a mounting module 130, the mounting module 130 is installed on the first shell 110, the first driving source 300 is installed on the mounting module 130, and the cleaning accessory 200 is detachably installed on the output end of the first driving source 300. Specifically, the mounting module 130 includes a first fixing portion 131, a second fixing portion 132 and a connecting portion 133. The first fixing portion 131 is a cylindrical ring structure. The first fixing portion 131 is arranged to cover the first driving source 300. The output shaft 310 of the first driving source 300 extends out of the first fixing portion 131. The second fixing portion 132 is fixed to the first shell 110 by snapping. The connecting portion 133 is a plurality of flat plate structures extending perpendicular to the airflow direction and distributed in a circular array. The two ends of the connecting portion 133 are respectively connected to the first fixing portion 131 and the second fixing portion 132. The first fixing portion 131 and the dust chamber 101b are coaxially arranged. The connecting portion 133 not only realizes the installation of the first fixing portion 131 on the first shell 110, but also realizes the circulation of airflow. It should be noted that the present invention does not limit the specific installation method of the installation module 130. For example, in other embodiments of the present invention, the second fixing portion 132 can be fixed to the first shell 110 by other means such as screw connection or plug-in connection, and the second fixing portion 132 can also be fixed to the first shell 110. It should also be noted that the embodiments of the present invention do not limit the specific shape of the installation module 130. For example, in some embodiments of the present invention, the first fixing portion 131 can only partially include the first driving source 300, and the first fixing portion 131 and the dust chamber 101b can be eccentrically arranged. It should be noted that the present invention does not limit the specific structure of the first driving source 300. In other embodiments of the present invention, the first driving source 300 can also be a device that can generate vibration, such as an ultrasonic generator.

[0070] The filter module 400 includes a first filter element 410, a second filter element 420, and a mounting bracket 430. The mounting bracket 430 is mounted on the first housing 110. The first filter element 410, the second filter element 420, and the mounting bracket 430 are fixedly connected. The first filter element 410 is located upstream of the second filter element 420 in the direction of airflow, and the diameter of the particles filtered by the first filter element 410 is larger than the diameter of the particles filtered by the second filter element 420.

[0071] The first filter element 410 , the second filter element 420 , and the mounting bracket 430 are described in detail below.

[0072] The first filter element 410 is a conical annular side panel structure. In other words, perpendicular to the airflow direction, the first filter element 410 has a first end 412 proximal to the mounting module 130 and a second end 413 distal to the mounting module 130. In the airflow direction, the distance between the first end 412 and the dust suction port 102 is shorter than the distance between the second end 413 and the dust suction port 102. The first filter element 410 is sleeved onto the mounting module 130, meaning the mounting module 130 extends through the first filter element 410. The first filter element 410 is made of stainless steel, and the axis of its conical annular side coincides with the axis of the first housing 110. The first filter element 410 has a plurality of filter holes 411 arranged in a circular array along the airflow direction. These filter holes 411 are waist-shaped, and perpendicular to the airflow direction, the minor axis of the waist-shaped filter holes 411 forms a certain angle with the thickness of the ring. This reduces the diameter of the filtered particles while ensuring the area of ​​the filter holes 411, thereby achieving a better filtering effect. It should be noted that the waist-shaped filter holes 411 on the first filter element 410 are a preferred embodiment of the present invention. In other embodiments of the present invention, the filter holes 411 on the first filter element 410 may also be circular or have other geometric shapes. It should also be noted that in the embodiment of the present invention, the first filter element 410 is made of stainless steel to ensure the strength and corrosion resistance of the first filter element 410, making the first filter element 410 cleanable and reusable. However, the present invention does not limit the specific material of the first filter element 410. The first filter element 410 may also be made of other materials such as various metals or plastics. In addition, in order to facilitate the dumping of garbage and reduce the probability of garbage falling when the user opens the dust chamber 101b, in the embodiment of the present invention, the distance from the first end 412 to the dust suction port 102 is smaller than the distance from the second end 413 to the dust suction port 102. However, in some embodiments of the present invention, the distance from the first end 412 to the dust suction port 102 is greater than the distance from the second end 413 to the dust suction port 102, that is, the first filter element 410 in the embodiment of the present invention is flipped over in the direction of the airflow.

[0073] Specifically, to optimize the space within the dust chamber 101b and reduce airflow resistance, the angle between the first filter element 410 and the axis of the first housing 110 is 46°. However, it should be noted that this angle is a preferred embodiment of the present invention. In other embodiments of the present invention, the angle between the first filter element 410 and the axis of the first housing 110 can also be 30°, 50°, 68°, or other angles, with the preferred angle range being 25° to 75°. It should also be noted that in some embodiments of the present invention, the first filter element 410 can also have an irregular spherical structure to achieve the effect of increasing the surface area.

[0074] The second filter element 420 is constructed of an annular cotton cloth material. The second end 413 is approximately flush with the second filter element 420 on the side of the airflow direction facing away from the suction port 102. The second filter element 420 is used to filter dust particles with a smaller diameter than the first filter element 410. The filter module 400 utilizes a two-layer filtration system, which essentially increases the effective filtration area, thereby enhancing the filtration effect and reducing the chance of reduced suction due to clogging of the filter surface with trash. Furthermore, the first filter element 410 and the second filter element 420 filter particles with different diameters, facilitating the dumping of trash and the cleaning of the dust chamber 101b. Furthermore, the cotton cloth material used for the second filter element 420 allows for the absorption of a small amount of liquid by the suction port 102, thereby preventing the liquid from being drawn into the dust removal device 1 and damaging its internal structure. It should be noted that, in the embodiment of the present invention, the second filter element 420 is made of cotton cloth, which is a preferred solution of the present invention, but the present invention is not limited to this. In other embodiments of the present invention, the second filter element 420 can also be high-efficiency filter paper or other structures with porous materials.

[0075] For the above-mentioned mounting bracket 430, the mounting bracket 430 includes a first mounting portion 431, a second mounting portion 432 and a mounting plate 433. The first mounting portion 431 is a circular cylindrical structure, and the first mounting portion 431 is sleeved on the mounting module 130. The second mounting portion 432 is an annular cylindrical structure. The mounting plate 433 is a flat plate structure perpendicular to the airflow direction. The two ends of the mounting plate 433 are respectively connected to the first mounting portion 431 and the second mounting portion 432 perpendicular to the airflow direction, and the mounting plate 433 is arranged on the side of the mounting bracket 430 away from the dust suction port 102. The first mounting portion 431 and the second mounting portion 432 together enclose an annular mounting cavity 101a, and the second filter element 420 is accommodated in the mounting cavity 101a. The first filter element 410 is fixed to a side of the mounting bracket 430 near the dust inlet 102. The diameters of the first filter element 410 and the mounting bracket 430 are identical and larger than the diameter of the dust chamber 101b, perpendicular to the airflow direction. This further optimizes the effective filtration area of ​​the first filter element 410 and enhances the filtration effect. It should be noted that the present invention does not limit the specific structure of the mounting bracket 430; it is sufficient to simply mount the first filter element 410 and the second filter element 420 on the first housing 110. The mounting plate 433 not only connects the first mounting portion 431 and the second mounting portion 432, but also abuts against the second filter element 420 in the airflow direction, thereby securing the second filter element 420 in the airflow direction. Furthermore, the circumferential spacing of the mounting plates 433 allows the filtered air to flow outward axially from the first housing 110 while achieving the aforementioned functions.

[0076] The first filter element 410 and the second filter element 420 are respectively disposed around the mounting module 130 to separate the chamber 101 into the mounting chamber 101a and the dust chamber 101b. The first filter element 410 is designed with a conical annular side surface, which can increase the effective area of ​​the first filter element 410 and the second filter element 420, that is, the effective area of ​​the filter holes 411. Because the housing 100 in the embodiment of the present invention is slender and approximately the size of a pen, the cross-sectional space of the chamber 101 is relatively small, so the use of an inclined surface can effectively increase the filtering area. On the other hand, if the second filter element 420 is a flat filter element, the inclined surface of the first filter element 410 can ensure the filtering effect of the second filter element 420 while optimizing the space. If both the first filter element 410 and the second filter element 420 are disposed in a flat manner, if the distance between them is small, the filtering surface of the second filter element 420 may not fully contact the airflow to be filtered. Instead, filtering can only be performed where the projections of the filter holes 411 of the second filter element 420 and the first filter element 410 overlap, thereby weakening the filtering effect. Furthermore, by arranging the first filter element 410 in an inclined manner, space utilization is more reasonable, and the installation between the filter modules 400 is simpler.

[0077] Preferably, an annular groove 432a is provided on the outer side of the second mounting portion 432, and the dust removal device 1 also includes a sealing ring 600, the annular groove 432a is used to accommodate the sealing ring 600, and a sealing ring 600 is also provided between the mounting module 130 and the mounting frame 430, thereby realizing the airway sealing of the middle and peripheral sides of the ring of the filter module 400, thereby avoiding the accumulation of dust between the gaps and the loss of wind force.

[0078] Preferably, the first filter element 410 also includes a reinforcement ring 414, which is arranged on the side of the first end 412 away from the dust suction port 102 and extends along the direction of the airflow. The setting of the reinforcement ring 414 can increase the strength of the first filter element 410, reduce the deformation of the first filter element 410 caused by the impact of airflow and garbage, thereby increasing the service life of the first filter element 410.

[0079] Preferably, the second mounting portion 432 is provided with a handle portion 432b on a side facing away from the suction port 102 in the airflow direction. The handle portion 432b is a hook-shaped structure integrally formed with the second mounting portion 432. The handle portion 432b facilitates the user to remove the filter module 400 from the first housing 110 when the first housing 110 and the second housing 120 are disassembled, thereby improving the user experience. It should be noted that in the embodiment of the present invention, in order to increase the volume of the handle portion 432b and facilitate the user's grip, the handle portion 432b is provided on the second mounting portion 432. However, in some embodiments of the present invention, the handle portion 432b may also be provided on the first mounting portion 431.

[0080] For the above-mentioned second driving source 500, the second driving source 500 includes a wind pressure motor 510, a centrifugal fan blade 520 and an installation unit 530. The installation unit 530 is arranged on the second shell 120 and is located in the installation cavity 101a. The wind pressure motor 510 is fixedly installed on the installation unit 530 and accommodated in the installation cavity 101a. The centrifugal fan blade 520 is sleeved on the power shaft 511 of the wind pressure motor 510. The wind pressure motor 510 drives the centrifugal fan blade 520 to rotate, thereby generating wind pressure in the installation cavity 101a and the dust cavity 101b, thereby causing gas flow in the installation cavity 101a and the dust cavity 101b.

[0081] Regarding the above-mentioned centrifugal fan blade 520, the centrifugal fan blade 520 includes a chassis 521 and a blade module 522. The blade module 522 is fixed on the chassis 521 and is located on the side of the chassis 521 facing the dust suction port 102. Below, the chassis 521 and the blade module 522 are described in detail in sections.

[0082] Regarding the above-mentioned chassis 521, the chassis 521 is in the shape of a conical side wall and is provided with an assembly hole 521a in the center. The angle between the side wall of the cone and the axis is 63°. The chassis 521 is sleeved on the power shaft 511 of the wind pressure motor 510 through the assembly hole 521a. It should be noted that in the embodiment of the present utility model, the chassis 521 is circular in projection on the axis to ensure that the centrifugal fan blade 520 rotates in the installation cavity 101a while obtaining a larger area, thereby increasing the installation area of ​​the blade 522a, and the chassis 521 is provided with a conical side wall so that it can be installed in the same The actual surface area is increased based on the projected area, thereby increasing the installation area of ​​the blades 522a, thereby increasing the contact area between the centrifugal fan blades 520 and the airflow, and improving the airflow guidance effect. However, in other embodiments of the present invention, the projection of the chassis 521 on the axis can be elliptical or polygonal, and while the space in the installation cavity 101a is sufficient, the chassis 521 can also be a flat plate-like structure, whose main structure has no inclination or bulge on the axis, or when weight is not considered, the chassis 521 is directly configured as a solid cone or spherical structure. On the other hand, the chassis 521 can also be configured as a spherical or other raised structure to achieve the purpose of increasing the projected area of ​​the chassis 521 on the axis. When the chassis 521 is in the form of a conical sidewall, the angle between the sidewall of the cone and the axis is not limited, and can also be 15°, 23°, 35°, 45°, 75°, etc. It should also be noted that in the part describing the centrifugal fan blades 520, in order to describe the axis mentioned in the orientation, unless otherwise specified, it refers to the central axis of the cone of the conical side wall of the chassis 521, and in the embodiment of the present utility model, the chassis 521 and the second shell 120 are coaxially arranged, that is, in the embodiment of the present utility model, the axis of the chassis 521 is also the axis of the second shell 120.

[0083] Regarding the above-mentioned blade module 522, the blade module 522 includes blades 522a. In the axial direction, the blades 522a are arc-shaped, and the blades 522a are distributed in a circular array on the chassis 521. The arc-shaped arrangement of the blades 522a can be designed to be longer on the same chassis 521 size, thereby increasing the contact area between the blades 522a and the wind. In the flow direction of the airflow, the blade 522a has a first side 522a1 located upstream, and a second side 522a2 located downstream. In the axial direction, the distance from the first side 522a1 to the base 521 is greater than the distance from the second side 522a2 to the base 521, and the distance from the first side 522a1 to the axis is less than the distance from the second side 522a2 to the axis. This design can increase the contact area of ​​the first side 522a1 with the airflow when cutting the wind, thereby increasing the binding force of the airflow, thereby pushing more airflow into the air channel between the blades 522a. On the other hand, the height of the airflow gradually decreases from the first side 522a1 to the second side 522a2, and the binding ability of the blade 522a on the airflow gradually decreases, releasing part of the energy of the airflow, reducing the collision kinetic energy of the airflow out of the fan blade and the second shell 120, reducing the loss of airflow energy, and improving the air outlet efficiency.

[0084] For the above-mentioned mounting unit 530, the mounting unit 530 includes a mounting seat 531, a mounting cover 532, a connecting element 533 and a mounting cylinder 534. The mounting seat 531 is a cylindrical cavity wall structure without a top cover, and the mounting cover 532 is a cylindrical cavity wall structure without a bottom wall. The mounting seat 531 and the mounting cover 532 are both coaxially arranged with the second shell 120. The mounting cover 532 is plugged into the mounting seat 531. The mounting cover 532 and the mounting seat 531 jointly enclose and install the wind pressure motor 510. A through hole 532a is provided in the middle of the mounting cover 532. The power shaft 511 of the wind pressure motor 510 is plugged into the through hole 532a to extend out of the mounting cover 532 and be installed with the centrifugal fan blade 520. The connecting element 533 is a ribbed plate structure, and the mounting cylinder 534 is a circular cylindrical shell structure. One end of the connecting element 533 is connected to the inner wall of the mounting cylinder 534, and the other end is connected to the mounting seat 531, perpendicular to the axis of the second shell 120, to facilitate the installation of the second drive source 500 on the second shell 120. Furthermore, the connecting element 533 is curved in the axis of the second shell 120, i.e., the connecting element 533 is arc-shaped. There are five connecting elements 533, which are arranged around the mounting seat 531. The arc-shaped arrangement of the connecting elements 533 can increase the contact area while guiding the gas, thereby reducing resistance to the airflow. It should be noted that, in the present invention, in order to fit the shape of the wind pressure motor 510 and the installation cavity 101a, the outer contours of the mounting seat 531, the mounting cover 532 and the mounting cylinder 534 are arranged in a cylindrical manner to optimize the space and keep the distance between the mounting cylinder 534 and the inner wall of the second shell 120 consistent, so as to avoid uneven wind pressure and thus resistance. However, the present invention is not limited to this. In other embodiments of the present invention, the wind pressure motor 510 can be fixedly mounted on the second shell 120 with other structures to achieve fixed installation of the wind pressure motor 510. It should also be noted that the present invention does not limit the specific structure and number of the connecting element 533. In other embodiments of the present invention, the connecting element 533 can be a flat structure or a block structure with a larger cross-sectional area, and its two ends are respectively connected to the second shell 120 and the mounting seat 531 to achieve the fixation of the mounting seat 531 on the second shell 120. The present invention also does not limit the specific number of the connecting elements 533. In other embodiments of the present invention, the number of the connecting elements 533 can also be 2, 3 or 6, etc., and multiple connecting elements 533 are arranged around the mounting seat 531, or while ensuring the installation strength of the mounting seat 531, the number of the connecting elements 533 is directly set to one.It should be understood that in the embodiments of the present invention, in order to simplify the structure of the second shell 120 and reduce the difficulty of producing the second shell 120, the installation unit 530 is an independent component, and the wind pressure motor 510 is installed on the installation unit 530 and then installed together on the second shell 120. However, in some embodiments of the present invention, the installation unit 530 can be integrally formed with the second shell 120.

[0085] Preferably, the mounting cover 532 is provided with four heat dissipation holes 532b, the heat dissipation holes 532b being in the shape of a right-angled fan as a whole. The four heat dissipation holes 532b are evenly distributed on the mounting cover 532, so that the mounting cover 532 has an overall hollow structure. The provision of the heat dissipation holes 532b facilitates heat dissipation of the wind pressure motor 510, and can reduce the power loss or damage caused by overheating of the wind pressure motor 510 due to continuous operation, thereby increasing the life of the dust removal device 1. It should be noted that the present invention does not limit the specific number and shape of the heat dissipation holes 532b. In other embodiments of the present invention, the heat dissipation holes 532b can be different shapes such as elliptical, circular, or polygonal, or the mounting cover 532 can be directly configured as a porous grid structure.

[0086] Preferably, in order to further reduce the loss of wind power, the blade 522a is composed of a first blade 522b and a second blade 522c, and the number of the first blade 522b and the second blade 522c are both 5. The 5 first blades 522b and the 5 second blades 522c are respectively arranged in a circular array around the axis, and the first blade 522b and the second blade 522c are arranged in sequence at intervals. In the direction perpendicular to the axis, the projected length of the first blade 522b on the chassis 521 is greater than the projected length of the second blade 522c on the chassis 521, and the end faces of the second side 522a2 of the first blade 522b and the second side 522a2 of the second blade 522c are both arc-shaped and are arcs of the same circle, the distance from the first side 522a1 of the first blade 522b to the axis is less than the distance from the first side 522a1 of the second blade 522c to the axis, and in the direction perpendicular to the axis, the distances from the first blade 522b and the second blade 522c on the same diameter of the chassis 521 to the chassis 521 are the same. The grouping design of the blades 522a can ensure space between the blades 522a and the airflow inlet when the cross-sectional size of the blades 522a is small, and also increase the guide area of ​​the blades 522a. On the other hand, the grouping design of the blades 522a can also perform a secondary diversion of the airflow, so that the airflow is more evenly dispersed when passing through the centrifugal fan blades 520, and further reduce wind loss. It should be noted that in the embodiment of the present invention, the number and size of the first blades 522b and the second blades 522c are designed to optimize the spatial layout and wind loss selected according to the size of the dust removal device 1, but the present invention is not limited to this. In other embodiments of the present invention, the number of the first blades and the second blades can be 3, 6, or 9, etc. It should also be noted that in the embodiment of the present invention, in order to simplify the structure and facilitate processing, the blades 522a are composed of the first blades 522b and the second blades 522c, but the present invention is not limited to this. In other embodiments of the present invention, the blades 522a can also include a third blade 522a or a fourth blade 522a, etc.

[0087] Preferably, in order to converge and guide the airflow to the first side 522a1 of the centrifugal fan blade 520, the second driving source 500 also includes an air guide 540, which is installed on the second shell 120 and positioned in the installation cavity 101a. The air guide 540 is located upstream of the centrifugal fan blade 520 in the flow direction of the gas. The air guide 540 is used to converge and guide the airflow in a direction perpendicular to the direction of the airflow, and the centrifugal fan blade 520 then guides the airflow converged by the air guide 540 toward the periphery. Specifically, the air guide 540 is annular in shape as a whole, with a conical first groove 541 and a second groove 542 provided on both sides of the middle portion in the axial direction. The first groove 541 and the second groove 542 are connected, and the overall wall thickness of the air guide 540 remains consistent. The air guide 540 forms a vortex formed by rotating the axis near the sharp corner. The air guide 540 is provided with reinforcing ribs on the outside to increase the strength of the air guide 540 and prevent deformation of the air guide 540 under the action of wind pressure, thereby affecting the convergence effect of the air guide 540. In the direction of gas flow, the first groove 541 is located upstream of the second groove 542. The first groove 541 is used to concentrate and converge airflow in a direction perpendicular to the axis, thereby directing the airflow to the first side 522a1 of the centrifugal fan blade 520, avoiding wind power loss caused by the dispersion of the airflow. The second groove 542 is used to be close to the blade 522a to form an air channel between the centrifugal fan blade 520, thereby guiding the air flow before entering the blade 522a, further facilitating gas flow and reducing wind loss. It should be understood that the present invention does not limit the specific structure of the air guide 540. For example, in other embodiments of the present invention, the first groove 541 and the second groove 542 can be spherical or other shapes, or in other embodiments of the present invention, the air guide 540 can be divided into two parts, that is, the air guide 540 is two components, and the first groove 541 and the second groove 542 are respectively provided on the two parts. In some embodiments of the present invention, without considering the weight of the air guide 540, the air guide 540 can also be a solid gyroid structure.

[0088] Preferably, to facilitate the installation between the centrifugal fan blades 520 and the wind pressure motor 510, an installation angle 521a1 is provided on the side of the assembly hole 521a close to the wind pressure motor 510, so that the centrifugal fan blades 520 can be better mounted on the power shaft 511 of the wind pressure motor 510, thereby facilitating production, reducing assembly time during production, and further reducing production costs.

[0089] Preferably, the chassis 521 is provided with reinforcing ribs on the side of the axis away from the centrifugal fan blade 520, thereby increasing the strength of the centrifugal fan blade 520 and preventing the centrifugal fan blade 520 from being deformed due to the action of wind pressure, thereby affecting the guide effect of the centrifugal fan blade 520 and damaging the fan blade.

[0090] Preferably, in order to reduce the weight of the centrifugal fan blade 520, part of the blade module 522 is extended out of the chassis 521 in the axial direction, and the blade module 522 is arranged in an outwardly inclined manner. While ensuring the same diversion area, the projected area of ​​the chassis 521 can be reduced, that is, the volume of the chassis 521 is reduced, thereby reducing the weight of the centrifugal fan blade 520 and the weight of the dust removal device 1, so as to facilitate user mobility and improve user experience.

[0091] Preferably, in order to prevent the garbage stored in the dust chamber 101b from spilling out from the dust suction port 102 during dumping or use, the dust removal device 1 also includes a dust shield 700. The dust shield 700 is used to rotate under the action of wind pressure, thereby changing the degree of shielding of the cavity 101. Specifically, the first shell 110 includes a mounting column 111 and a connecting rib 112. The mounting column 111 is a cylindrical ring structure. The number of the connecting ribs 112 is 3. The 3 connecting ribs 112 are arranged in a circular array around the axis of the first shell 110. The connecting ribs 112 respectively connect the mounting column 111 and the inner wall of the first shell 110. The output shaft 310 of the first driving source 300 and the cleaning accessory 200 pass through the mounting column 111. The dust shield 700 is annular and is made of sponge. The dust shield 700 includes a mounting end 710, a rotating end 720 and a rotating shaft portion 730. The mounting end 710 is sleeved on the mounting column 111, and the rotating end 720 rotates under the action of wind pressure, thereby changing the degree of shielding of the cavity 101. The two ends of the rotating shaft portion 730 are connected to the mounting end 710 and the rotating end 720 respectively. The thickness of the rotating shaft portion 730 is less than the thickness of the mounting end 710 and the rotating end 720, thereby forming a flexible hinge structure between the mounting end 710 and the rotating end 720, which is conducive to the rotation of the rotating end 720 of the dust shield 700, preventing the rotating end 720 from rotating too little when the wind force is small, thereby affecting the suction of garbage and the loss of wind force. It should be noted that the present invention does not limit the specific material of the dust shield 700. In other embodiments of the present invention, the material of the dust shield 700 can also be a soft material that is easy to deform, such as polyvinyl chloride or thermoplastic polyurethane elastomer. It should also be noted that, in the embodiment of the present invention, the number of connecting ribs 112 is 3 in order to strengthen the installation strength of the mounting column 111 on the first shell 110, but the present invention does not limit the specific number of connecting ribs 112. In other embodiments of the present invention, the connecting ribs 112 may be 2, 5 or 7 or more, and multiple connecting ribs 112 may be arranged in a circular array around the axis of the first shell 110, or the number of connecting ribs 112 may be set to only one while ensuring the installation strength of the mounting column 111.

[0092] For the above-mentioned mounting column 111 and connecting rib 112, the mounting column 111 is a cylindrical ring structure, and the connecting rib 112 connects the mounting column 111 and the inner wall of the first shell 110 respectively. The number of connecting ribs 112 is 3, and the 3 connecting ribs 112 are arranged in a circular array perpendicular to the direction of airflow, and the connecting rib 112 is close to the dust suction port 102 on the side of the airflow direction. From the connection point of the connecting rib 112 and the first shell 110 to the connection point of the connecting rib 112 and the mounting column 111, the thickness of the connecting rib 112 gradually decreases, and its contour is a smooth transition, that is, the connecting rib 112 is concave at the dust suction port 102, which can reduce the volume of the connecting rib 112 while ensuring the installation strength of the mounting column 111 and the first shell 110, and the smooth transition of the connecting rib 112 on the side close to the dust suction port 102 can reduce the resistance when the garbage is sucked into the dust chamber 101b, that is, increase the suction strength. The mounting post 111 has a mounting protrusion 111a at one end thereof facing away from the dust suction port 102 in the direction of airflow. During installation, the dust shield 700, through its own elasticity, utilizes its elasticity to be able to be sleeved onto the mounting post 111 from the mounting protrusion 111a in a manner of short-term expansion of the profile. The inner diameter of the mounting end 710 is the same as the outer diameter of the mounting post 111. The mounting end 710 is adapted to be mounted on the mounting post 111. In the direction of airflow, one side of the dust shield 700 abuts against the connecting rib 112, and the other side abuts against the mounting protrusion 111a, thereby achieving a fixed installation of the dust shield 700 and preventing it from swinging or shifting due to wind pressure. The embodiment of the present invention achieves fixed installation on the dust removal device 1 by sleeve installation. Compared with traditional bonding or clamping installation methods, the structural design is simpler, the number of parts and the number of assembly steps are relatively small. Compared with bonding or clamping, which are easy to fall off or loosen under the action of wind pressure, the installation method of the embodiment of the present invention is more secure, thereby extending the service life of the dust shield 700 and enhancing the user experience.

[0093] Preferably, the mounting protrusion 111a has a chamfer on the side facing away from the dust suction port 102 in the direction of airflow. The chamfer can facilitate the installation of the dust shield 700 during the production process. During installation, the dust shield 700 can use the chamfered profile to gradually increase the inner hole profile of the mounting end 710, thereby sliding out of the mounting protrusion 111a to achieve installation. Furthermore, the number of mounting protrusions 111a is three, and the three mounting protrusions 111a are distributed in a circular array perpendicular to the direction of airflow. The mounting protrusions 111a are arranged in this spaced manner to further facilitate the installation of the dust shield 700. When the mounting end 710 is difficult to insert into the mounting protrusion 111a whose size is larger than its own inner hole diameter, the mounting end 710 can be installed by inserting the mounting protrusions 111a one by one, thereby reducing the degree of deformation of the mounting end 710 during installation, thereby reducing the difficulty of installation of the mounting end 710, and further ensuring the installation strength of the dust shield 700 on the first shell 110.

[0094] Preferably, the rotating end 720 is at an angle of 75° to the airflow direction, and the side of the rotating end 720 facing away from the dust suction port 102 is tilted inwardly toward the axis of the first shell 110 in the airflow direction. Because the shell in this embodiment of the present invention is a slender structure and the cross-section of the dust chamber 101b is small, the angle between the rotating end 720 and the airflow can increase the radial length of the rotating end 720, thereby amplifying the shielding effect during rotation. The larger area of ​​the rotating end 720 is more conducive to receiving wind force, making the rotating end 720 easier to rotate. It should be noted that in this embodiment of the present invention, the 75° angle between the rotating end 720 and the airflow direction is a preferred solution, but the present invention is not limited to this. In other embodiments of the present invention, the rotating end 720 can also be at different angles such as 45°, 30°, or 90°.

[0095] Preferably, the contour of the side of the first shell 110 close to the dust suction port 102 gradually decreases, and the overall thickness of the first shell 110 remains uniform, that is, the contour of the side of the dust chamber 101b close to the dust suction port 102 gradually decreases, so that the first shell 110 has a smaller dust suction range close to the dust suction port 102, which is convenient for user operation. On the other hand, the rotating end 720 and the airflow direction are tilted. Because the contour of the dust chamber 101b close to the dust suction port 102 is reduced, when the dust removal device 1 is inverted or tilted, the garbage will reversely push the dust block 700 against the inner wall of the first shell 110, thereby forming a self-locking function, further preventing garbage from leaking from the dust suction port 102, and improving the user experience.

[0096] Furthermore, in order to allow the user to use light to illuminate the dust in dark conditions, the dust removal device 1 also includes a lighting module 800. The lighting module 800 includes a circuit board 810 and a light-emitting component 820. The circuit board 810 is in a circular shape. The circuit board 810 is installed on the installation module 130 and is arranged around the output shaft 310 of the motor of the first driving source 300. The light-emitting component 820 is an LED lamp bead. The number of the light-emitting components 820 is 6. The 6 light-emitting components 820 are welded on the circuit board 810 in a circular array, and the light of the light-emitting component 820 is set toward the dust suction port 102. When the light-emitting component 820 is in working state, the light emitted will be emitted from the dust suction port 102 to illuminate the surface to be cleaned. It should be noted that, in the embodiment of the present invention, the light-emitting element 820 uses LED lamp beads in order to reduce the volume and cost of the lighting module 800, but the present invention does not limit this. In other embodiments of the present invention, the light-emitting element 820 can also use other types of lamps such as incandescent lamps, fluorescent lamps or laser lamps. In addition, the present invention does not limit the specific number of light-emitting elements 820. In the embodiment of the present invention, the light-emitting module uses 6 light-emitting elements 820 arranged in a circular array, which can obtain more uniform and brighter light while reducing the size of the light-emitting element 820 in a single direction. The dust removal device 1 of the embodiment of the present invention is cylindrical as a whole. When the user holds the first shell 110 in use, it can be rotated 360° and there is no difference in the angle of use. Therefore, multiple The light-emitting components 820 are arranged in a circular array to emit light evenly, so that the lighting effect can be consistent when the user holds the device at different angles. However, the present invention is not limited to this. In other embodiments of the present invention, only one light-emitting component 820 can be selected while the intensity can meet the requirements, or 2, 4, 7 or more light-emitting components 820 can be selected. Multiple light-emitting components 820 can be arranged in a circular array, or can be arranged in an irregular manner on the circuit board 810. For example, in some embodiments of the present invention, a gripping positioning structure is provided on the first shell 110, or the first shell 110 is elliptical as a whole. When the user holds the first shell 110 at a specific angle when using the dust removal device 1, the light-emitting components 820 can be arranged in a concentrated manner and emit the dust suction port 102 at a fixed angle.It should also be noted that, in the embodiment of the present invention, in order to simplify the structure of the lighting module 800 and reduce the cost of the dust removal device 1 while being installed more firmly, the light-emitting component 820 is directly welded to the circuit board 810 by welding, but the present invention is not limited to this. In other embodiments of the present invention, the light-emitting component 820 can also be fixed to the mounting module 130 by setting a snap-fit ​​structure, and the electrical connection between the light-emitting component 820 and the circuit board 810 can be achieved through wires. Alternatively, in some embodiments of the present invention, the light-emitting component 820 can be fixed to the circuit board 810 by plugging and achieve electrical connection with the circuit board 810.

[0097] Preferably, the lighting module 800 also includes a baffle 830, which is a circular transparent plate-like structure. The baffle 830 is made of transparent polycarbonate. The baffle 830 is arranged on the first fixed portion 131 to seal the light-emitting component 820 and the circuit board 810, thereby preventing the dust removal device 1 from being adhered to dust during operation, thereby shielding the light-emitting component 820, and further affecting the light intensity of the light-emitting component 820. The adhesion of dust can easily affect the electrical connection between the light-emitting component 820 and the circuit board 810. On the other hand, the baffle 830 is made of a transparent material, and the light-emitting component 820 can directly pass through the baffle 830 without causing loss of light intensity. The outer diameter of the baffle 830 is the same as the outer diameter of the first fixing portion 131. The baffle 830 is provided with positioning blocks 831 on both sides of the arc, and the first fixing portion 131 is provided with a positioning groove 131a. The baffle 830 is accommodated in the first fixing portion 131 and the positioning blocks 831 are respectively accommodated in the positioning grooves 131a, and the side of the baffle 830 facing away from the dust suction port 102 is the installation surface, and the installation surface is affixed with adhesive. The baffle 830 is adhered to the bottom surface of the positioning groove 131a through the positioning blocks 831, thereby realizing the installation of the baffle 830 on the first fixing portion 131. It should be noted that the present invention does not limit the specific material and shape of the baffle 830. In other embodiments of the present invention, the baffle 830 can also be transparent or It is a light-transmitting material, and in an embodiment of the present invention, the baffle 830 is designed to be circular in order to fit the contour shape of the first fixing portion 131, but in other embodiments of the present invention, when the interface of the first fixing portion 131 is elliptical or polygonal, the baffle 830 can fit the shape of the first fixing portion 131 and be correspondingly elliptical or polygonal. On the other hand, in some embodiments of the present invention, the baffle 830 may not fit the shape of the first fixing portion 131 to partially shield the light-emitting component 820 or through an arc-shaped baffle 830 structure extending in the axial direction of the first shell 110, such as the baffle 830 is in the shape of a circular ring or a conical side wall, and the two ends of the baffle 830 are connected between the mounting column 111 and the first fixing portion 131 to block and shield the light-emitting component 820.

[0098] Furthermore, the mounting module 130, the connecting portion 133, the base 210, and the first shell 110 are light-transmissive, and the lighting module 800 further includes a light-blocking member 840, which is annular in shape and arranged around the dust suction port 102. The dust removal device 1 is provided with a light-blocking member 840 on the periphery of the dust suction port 102, which can block part of the light emitted by the light-emitting member 820, so that the light emitted by the light-emitting member 820 is concentrated in the dust suction range corresponding to the dust suction port 102, and does not form an excessively large illumination area. The user can intuitively judge the cleaning area of ​​the dust removal device 1, and the light-blocking member 840 partially blocks the light emitted by the light-emitting member 820. Under the premise of ensuring that the cleaning area is illuminated, the light intensity entering the user's eyes is reduced, thereby protecting the user's eyes, making the use process more comfortable, and thus improving the user experience. It should be noted that in the embodiments of the present invention, in order to facilitate installation and reduce production costs, the edges of the light blocking member 840 are all rounded, and the shape of the mounting notch 113 is adapted to the contour of the light blocking member 840. However, the present invention does not limit the specific structure of the light blocking member 840. In other embodiments of the present invention, the light blocking member 840 can be a multi-segment or single-segment ring structure. The light blocking member 840 is installed at the dust suction port 102 of the first shell 110 to partially block the light of the light-emitting member 820, so as to reduce the area of ​​the illuminated area and the emitted light. In addition, in some embodiments of the present invention, the outer surface of the first shell 110 and the light blocking member 840 can be provided with mutually interlocking structures such as protrusions and recesses. On the one hand, the area of ​​the light blocking member 840 on the first shell 110 can be increased, making it easier for the user to hold it, and on the other hand, the appearance of the dust removal device 1 can be made more fashionable. It should also be added that the first shell 110 is arranged in a light-transmitting manner to facilitate the user to observe the storage capacity of the dust chamber 101b.

[0099] Specifically, an annular mounting notch 113 is provided on one side of the first shell 110 close to the dust suction port 102. The light blocking member 840 is accommodated and installed in the mounting notch 113 and is adhesively fixed to the first shell 110. The edges of the light blocking member 840 and the outer contour of the first shell 110 are adapted to fit so that there is no obvious gap in the outer contour. The light blocking member 840 is made of thermoplastic polyurethane elastomer and is made by one-piece injection molding during production. The material is soft and elastic, which makes it convenient for users to hold during use and has a better feel. The hardness and wear resistance are relatively superior, and it has good oil resistance, chemical resistance and corrosion resistance, so that the dust suction port 102 is not easily worn or corroded during use, thereby increasing the service life of the dust removal device 1 and improving the user experience. It should be noted that in an embodiment of the present invention, in order to reduce the installation steps, save production time, and ensure the installation strength of the light blocking member 840, the light blocking member 840 and the first shell 110 are integrally injection molded by two-color injection molding, so that the light blocking member 840 and the first shell 110 are integrally molded, but the present invention is not limited to this. In other embodiments of the present invention, the light blocking member 840 can be set separately from the first shell 110, and the light blocking member 840 can be fixed to the first shell 110 by sleeve installation and bonding, or in some embodiments of the present invention, the light blocking member 840 can also be fixed to the first shell 110 by snapping or screwing.

[0100] The beneficial effect of the embodiment of the present invention is: different from the prior art, the embodiment of the present invention is equipped with a cleaning accessory 200, and the first driving source 300 drives the cleaning accessory 200 to move, thereby sweeping away the garbage attached to the surface to be cleaned, thereby achieving powerful cleaning.

[0101] It should be noted that the preferred embodiments of the present invention are given in the specification and drawings of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments do not serve as additional limitations on the content of the present invention. The purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all considered to be within the scope of the description of the present invention; further, it is obvious to those skilled in the art that improvements or changes can be made based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A dust removal device, characterized in that: include: The housing is elongated and has a cavity and a dust suction port communicating with the cavity and the outside, wherein the dust suction port is provided at an end of the housing; A driving source is provided in the cavity, and the driving source can generate dust suction power; The cross section of the shell is circular so that the user can hold and operate it.

2. The dust removal device according to claim 1, characterized in that: The cross-sectional diameter of the shell is 2.5 cm, and the length of the shell is 15 cm.

3. The dust removal device according to claim 1, wherein: The dust removal device further includes a cleaning accessory and a filter module, wherein the cleaning accessory is disposed in the cavity and at least partially extends out of the suction port, and the cleaning accessory cleans the surface to be cleaned by moving; The filter module is arranged in the cavity.

4. The dust removal device according to claim 3, characterized in that: The driving source includes a first driving source and a second driving source, the first driving source is used to drive the cleaning accessory to move, and the second driving source is used to provide wind pressure so that external garbage can enter the cavity through the suction port.

5. The dust removal device according to claim 4, characterized in that: The shell includes a detachable first shell and a second shell, the first shell and the second shell together enclose the cavity, and the dust suction port is arranged on the first shell; the shell also includes an installation module, the installation module is installed on the first shell and / or the second shell, the first driving source is installed on the installation module, and the cleaning accessories are detachably installed on the output end of the first driving source.

6. The dust removal device according to claim 5, characterized in that: The profile of one side of the first shell close to the suction port gradually decreases, and the thickness of the entire first shell remains uniform.

7. The dust removal device according to claim 4, characterized in that: The second driving source includes a centrifugal fan blade and a wind pressure motor. The power shaft of the wind pressure motor is plugged into the centrifugal fan blade. The wind pressure motor is used to drive the centrifugal fan blade to rotate. The centrifugal fan blade rotates to guide the airflow toward the periphery.

8. The dust removal device according to claim 7, wherein: The centrifugal fan blade includes a chassis and a blade module. The blade module is fixed on the chassis and is located on a side of the chassis facing the dust suction port.

9. The dust removal device according to claim 8, characterized in that: The chassis is conical and has an assembly hole at the center. The angle between the side wall of the cone and the axis is 63°. The chassis is sleeved on the power shaft of the wind pressure motor through the assembly hole.

10. The dust removal device according to claim 3, wherein: The filter module divides the cavity into an installation cavity and a dust cavity. The dust cavity and the dust suction port are connected and coaxially arranged. The installation cavity and the dust cavity are cylindrical with the same cross-sectional shape. The cross-sectional shape of the dust suction port is circular.

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