Filter element for dust removal equipment and portable dust removal equipment

Abstract

The embodiment of the utility model relates to the technical field of cleaning appliances, and particularly discloses a filtering piece for dust removal equipment and portable dust removal equipment, the dust removal equipment comprises a handheld mini shell, a cavity is arranged in the shell, and a dust suction port communicated with the outside is arranged at one end of the cavity; the filtering part comprises a filtering part, the filtering part is contained in the cavity, the filtering part is of a hollow truncated cone structure, the truncated cone face of the truncated cone structure faces the dust collection opening, and a plurality of filtering holes are formed in the truncated cone face and used for filtering airflow sucked into the cavity from the dust collection opening; one end of the fixing part is connected to the shell, and the other end of the fixing part is connected to the filtering part, so that the filtering part is fixed in the cavity. Through the reasonable structural design of the filter piece, the dust particles are effectively filtered, and the dust filter is suitable for various cleaning scenes, so that powerful cleaning can be realized.

Description

TECHNICAL FIELD

[0001] The utility model discloses an embodiment relates to cleaning appliance technical field, in particular to a kind of filter piece for dust removal equipment and portable dust removal equipment. BACKGROUND

[0002] Dust collector is a kind of widely used cleaning equipment in human life and industrial production. The working principle of dust collector is to use motor to drive blade to rotate at high speed, to generate air negative pressure in sealed shell, and then to suck airflow carrying dust through external suction pipe. Among them, the filter device in dust collector can separate dust in suction airflow, so that dust is separated and stored in dust collector, and the airflow separated from dust is discharged into air again, so as to achieve cleaning effect.

[0003] However, at present, the common handheld dust collector is usually designed with only one sponge filter layer, which cannot meet diversified cleaning needs, so that when dealing with various types of garbage, the problem of poor filtering effect or easy blocking may occur. Therefore, it is particularly important to develop a filter piece with reasonable structure to effectively filter cleaning garbage. UTILITY MODEL CONTENTS

[0004] Therefore, it is necessary to provide a filter piece for dust removal equipment and portable dust removal equipment with better filtering effect and not easy to block during cleaning process.

[0005] The embodiment of the present application provides a filter piece for dust removal equipment, which comprises a hand-held mini shell, a cavity in the shell, and a dust suction port communicating with the outside at one end of the cavity.

[0006] The filter part is received in the cavity, and the filter part is a hollow truncated cone structure, and the truncated cone surface of the truncated cone structure faces the dust suction port, and a plurality of filter holes are provided on the truncated cone surface for filtering the airflow sucked into the cavity from the dust suction port.

[0007] The fixed part is connected to the shell at one end and connected to the filter part at the other end to fix the filter piece inside the cavity.

[0008] In one embodiment, the filter hole is a waist-shaped filter hole and / or a circular filter hole.

[0009] The waist-shaped filter hole and / or the circular filter hole are arranged on the truncated cone surface of the filter part in a circumferential array around the central axis of the filter part.

[0010] In one embodiment, when the filter hole is a waist-shaped filter hole, the angle between the minor axis of the waist-shaped filter hole and the diameter direction of the truncated cone surface in the direction perpendicular to the central axis of the filter section is a preset acute angle.

[0011] In one embodiment, when the filter holes are circular, the number of circles of filter holes arranged in a circumferential array on the truncated cone surface is not less than two.

[0012] Specifically, on the truncated cone surface, the diameter of the circular filter holes closer to the central axis is smaller than the diameter of the circular filter holes farther from the central axis.

[0013] In one embodiment, the filter includes a first opening near the suction port and a second opening away from the suction port, wherein the cross-sectional diameter of the first opening is smaller than that of the second opening;

[0014] The first opening, the second opening, and the dust suction port are all coaxially arranged with the housing.

[0015] In one embodiment, the dust removal equipment further includes a mounting frame, the mounting frame having a cylindrical annular structure, and the mounting frame being fixedly connected to the housing;

[0016] The diameter of the cylindrical annular structure is the same as the diameter of the first opening, so that the filter element is sleeved and installed on the mounting bracket, and the mounting bracket fixes the filter element inside the cavity.

[0017] In one embodiment, the fixing part includes a first fixing ring and a connecting rib;

[0018] The connecting rib is disposed in the cavity, and one end of the connecting rib is fixed to the inner wall of the shell, and the other end is fixed to the first fixing ring, so as to fix the first fixing ring in the cavity.

[0019] The first fixing ring is disposed on the first opening, and the outline and size of the first fixing ring are the same as those of the first opening, so as to fix the filter element inside the cavity by means of the connecting rib.

[0020] In one embodiment, the fixing part includes a second fixing ring;

[0021] The inner side of the second fixing ring is connected to the second opening, and the outline and size of the inner side of the second fixing ring are the same as those of the second opening, so as to fix the second fixing ring to the filter element.

[0022] The outer side of the second fixing ring is connected to the inner wall of the housing, and the outline and size of the outer side of the second fixing ring are the same as those of the inner wall of the housing, so as to fix the filter element inside the cavity through the second fixing ring.

[0023] In one embodiment, the filter element further includes a reinforcing ring disposed on the side of the first opening facing the second opening, and the reinforcing ring is flush with the second opening;

[0024] The reinforcing ring is used to increase the structural strength of the filter element.

[0025] This application embodiment also provides a portable dust removal device, which includes a filter element as described above for dust removal devices, and is used to filter the airflow drawn into the cavity from the suction port.

[0026] The aforementioned filter element for dust removal equipment and portable dust removal equipment, on the one hand, greatly reduce the physical size of the dust removal equipment by storing the filter element in a handheld mini shell, making the equipment easy to carry and suitable for cleaning needs in various occasions, thereby improving the portability and operability of the dust removal equipment; on the other hand, by differentiating itself from existing technologies, this solution achieves effective filtration of dust particles through a reasonable structural design of the filter element, which not only improves the filtration efficiency and service life of the dust removal equipment, but also optimizes the cleaning effect, making it suitable for a variety of cleaning scenarios, thereby achieving powerful cleaning.

[0027] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0029] Figure 1 This is a perspective view of a portable dust removal device according to an exemplary embodiment;

[0030] Figure 2 This is a cross-sectional schematic diagram of a portable dust removal device according to an exemplary embodiment;

[0031] Figure 3 This is a perspective view of a filter element for a dust removal device according to an exemplary embodiment;

[0032] Figure 4 yes Figure 2 Enlarged view of point G in the middle;

[0033] Figure 5 This is a schematic diagram of two filter elements in orthographic projection according to an exemplary embodiment;

[0034] Figure 6 This is a spatially exploded schematic diagram of a filter element according to an exemplary embodiment;

[0035] Figure 7 This is a spatially exploded schematic diagram of another filter element according to an exemplary embodiment;

[0036] Figure 8 This is a side cross-sectional schematic diagram of another filter element according to an exemplary embodiment;

[0037] Figure 9 This is a perspective view of a portable dust removal device according to another exemplary embodiment;

[0038] Figure 10 This is a cross-sectional schematic diagram of a portable dust removal device according to another exemplary embodiment.

[0039] In the figure, the reference numerals are as follows: 10, filter element for dust removal equipment; 100, housing; 101, cavity; 101a, mounting cavity; 101b, dust chamber; 102, suction port; 103, air outlet; 20, portable dust removal equipment; 200, filter element; 210, filter section; 211, truncated cone surface; 212, filter hole; 212', waist-shaped filter hole; 212”, circular filter hole; 213, first opening; 214, second opening; 220, fixing part; 221, first fixing ring; 222, connecting part. 223, second fixing ring; 230, reinforcing ring; 300, filter sponge; 400, mounting bracket; 401, accommodating cavity; 410, first mounting part; 420, second mounting part; 430, mounting plate; 910, cleaning accessories; 920, drive source; 930, power supply assembly; 940, air pressure assembly; L1', short axis direction of waist-shaped filter holes; L2', diameter direction of truncated cone surface; θ', included angle; R1, diameter of the first ring of circular filter holes; R2, diameter of the second ring of circular filter holes. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0041] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0042] The term "and / or" in the embodiments of this application refers to any and all possible combinations including one or more of the associated listed items. It should also be noted that, when used in this specification, "including / comprising" specifies the presence of the stated features, integers, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, elements, and / or components and / or groups thereof, and is intended to cover non-exclusive situations. For example, a product or device comprising a series of units is not limited to the listed units, but may optionally include units not listed, or may optionally include other units inherent to such products or devices.

[0043] Furthermore, although the terms "first," "second," etc., are used repeatedly in this application to describe various components, these components should not be limited by these terms. These terms are only used to distinguish one component from another, not to describe a specific order. For example, a first housing can be called a second housing, and a second housing can be called a first housing; the difference lies only in the scope they encompass, without departing from the scope of this application. Both the first housing and the second housing are outer casings configured in portable dust removal equipment, but they are not outer casings with the same structural design.

[0044] To explain in detail the technical content, technical steps, objectives and effects of this application, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0045] In cleaning equipment, filters are a key component, effectively capturing and filtering debris and dirt. Traditional filtration systems are typically designed with only a single layer of filter sponge, which is insufficient to meet diverse cleaning needs and may experience poor filtration or clogging when handling various types of waste. Therefore, developing a well-structured filter to achieve effective waste filtration is particularly important.

[0046] This utility model provides a filter element 200 for dust removal equipment. Please refer to [link / reference]. Figures 1 to 4 The dust removal device 10 includes a handheld mini housing 100, with a cavity 101 inside the housing 100 and a suction port 102 communicating with the outside at one end of the cavity 101. The filter element 200 includes a filter section 210 and a fixing section 220. The filter section 210 is housed inside the cavity 101 and has a hollow truncated cone structure. The truncated cone surface 211 of the truncated cone structure faces the suction port 102, and a plurality of filter holes 212 are provided on the truncated cone surface 211 for filtering the airflow drawn into the cavity 101 from the suction port 102. One end of the fixing section 220 is connected to the housing 100, and the other end is connected to the filter section 210 to fix the filter element 200 inside the cavity 101.

[0047] For housing 100, please refer to [link / reference]. Figure 1 and Figure 2 The housing 100 of the filter element 200 used in the dust removal equipment is a user-friendly, handheld mini housing, carefully designed in terms of structure to make it compact and easy to carry. The housing 100 has an internal cavity 101 for cleaning, which forms the basic frame of the dust removal equipment.

[0048] In some embodiments, such as Figure 1 As shown, the dust removal device is mainly represented by the housing 100. To make it easy for users to hold, the housing 100 can be a slender cylindrical structure, and its size is also more miniaturized than existing dust removal devices, with a diameter of about 2.5 cm and a length of about 15 cm. That is, the shape and size of the dust removal device are slightly similar to a pen, which makes it easier for users to hold and use this small and precise cleaning device.

[0049] In some embodiments, such as Figure 2As shown, the housing 100 has a hollow structure, meaning it contains a cavity 101. One end of the cavity 101 has a suction port 102 connecting to the outside, and the other end has an air outlet 103 connecting to the outside. The suction port 102 is close to the surface to be cleaned, used to suck up debris swept off the surface. The air outlet 103 ensures smooth airflow to expel filtered air, improving the overall cleaning efficiency of the device. Simultaneously, the miniature design of the cavity 101 ensures flexibility during use.

[0050] In some embodiments, the suction port 102 and the air outlet 103 are respectively located at the two ends of the housing 100. The cross-sectional shape of the suction port 102 and the air outlet 103 is circular, and the axes of the suction port 102, the air outlet 103 and the cavity 101 are the same straight line.

[0051] In this embodiment, the cross-sections of the cavity 101, the suction port 102, and the air outlet 103 are circular to ensure uniform suction and consistent external dimensions without differences in the angle of use. Additionally, it maintains a consistent wall thickness for the housing 100, thereby ensuring the overall strength of the housing 100. In some embodiments, the cross-sectional shape of the cavity 101 can be elliptical or polygonal, and the cross-sections of the suction port 102 and the air outlet 103 can be oblong or rectangular, etc. The positions of the suction port 102 and the air outlet 103 can be offset from the axis of the cavity 101.

[0052] The specific shape and size of the housing 100 only need to meet the requirements of being easy for users to hold and being more miniaturized than existing devices. This application does not make specific limitations on it. For example, in other embodiments, the housing 100 can be a housing structure with an elliptical cross section, or a cylindrical shape with a relatively short and thick shape and a large diameter. Its specific size can also be other values.

[0053] In this embodiment, the axis of the housing 100 is the direction of the central axis of the cylindrical housing 100, and the airflow direction of the filter element 200 for dust removal equipment is parallel to the axis during operation. In other embodiments, when the housing 100 is not cylindrical, the axis of the housing 100 is the extension direction of the main structure, and the airflow direction is parallel to the axis.

[0054] Furthermore, inside the cavity 101, a filter element 200 is installed within the housing 100. This assembly divides the cavity 101 into two areas: a mounting cavity 101a and a dust cavity 101b. This design makes the airflow inside the device more orderly and effectively separates impurities from clean air.

[0055] Furthermore, the suction port 102 is located at the end of the housing 100 near the dust chamber 101b to ensure that dirt and debris can be quickly sucked in during the cleaning process. At the same time, the clean airflow passing through the filter element 200 will be formed in the mounting cavity 101a and finally discharged through the air outlet 103 to ensure that the released air is clean and unpolluted.

[0056] The filter element 200 optimizes the airflow direction, ensuring that debris on the surface to be cleaned, after being drawn into the cavity 101 through the suction port 102, quickly enters the dust chamber 101b. This design effectively captures and stores impurities, significantly reducing the risk of them flowing back into the environment with the airflow. Simultaneously, the filtered clean airflow smoothly exits through the mounting cavity 101a to the air outlet 103, thereby improving overall cleaning efficiency.

[0057] The circular cross-sections of the mounting cavity 101a, dust cavity 101b, and suction port 102 are designed for uniform suction, consistent aesthetics, and consistent thickness of the housing 100. However, the specific shapes of the mounting cavity 101a, dust cavity 101b, and suction port 102 can also be other shapes. For example, the cross-sectional shapes of the mounting cavity 101a and dust cavity 101b can be elliptical or polygonal, and the cross-section of the suction port 102 can be oblong or rectangular, etc. Furthermore, the position of the suction port 102 can be offset from the axis of the dust cavity 101b. In other embodiments, the housing 100 can also be fixed by snap-fit ​​or plug-in connection, or opened and closed by a pivot connection and locking structure; no specific limitations are made here.

[0058] Furthermore, in this embodiment, the airflow direction refers to the direction in which the gas flows within the cavity 101. This airflow direction is approximately the axial direction of the housing 100. At certain locations within the cavity 101, the airflow direction may slightly deviate radially due to the obstruction of the air guiding structure and internal components. Moreover, when defining the direction, the airflow direction described refers to the axial direction of the housing 100, and the outer contour of the housing 100 is cylindrical, with its axis being the central axis of the corresponding cylinder.

[0059] For the filter section 210, please refer to Figure 2 and Figure 3 The filter section 210 can be made of stainless steel. The axis of its hollow truncated cone structure coincides with the axis of the housing 100, and the truncated cone surface 211 of the truncated cone structure faces the dust inlet 102. Thus, when airflow carrying dust particles is drawn into the dust inlet 102, the airflow can be directly filtered by the filter section 210.

[0060] The use of stainless steel for the filter section 210 ensures the strength and corrosion resistance of the filter element 200, allowing the filter element 200 to be cleaned and reused. In other embodiments, the filter section 210 may also be made of other metals or plastics or other materials.

[0061] In some embodiments, a plurality of filter holes 212 are arranged circumferentially on the truncated cone surface 211 of the truncated cone structure along the airflow direction, and the short axis of the filter hole 212 and the thickness direction of the ring are set at a certain angle perpendicular to the airflow direction, so as to reduce the diameter of the filtered particles while ensuring the area of ​​the filter hole 212, and thus obtain a better filtration effect.

[0062] The filter section 210 is designed to effectively capture larger particles of debris, such as dust and dirt, preventing them from entering the finer filter layer and thus ensuring the cleanliness and lifespan of subsequent filter components. Therefore, the preferred embodiment of this application is that the filter holes 212 on the filter section 210 can be arranged in an oblong shape. In other embodiments, the filter holes 212 on the filter section 210 can also be circular or other geometric shapes, which are not specifically limited here.

[0063] In some embodiments, the filter section 210 adopts a conical annular side structure design, which can increase the effective area of ​​the truncated cone surface 211, that is, increase the effective area of ​​the filter hole 212. Because in this embodiment, the housing 100 adopts a slender specification that is close to the size of a pen, and the cross-sectional space of the cavity 101 is small, so the inclined surface can effectively increase the filtration area. In addition, the inclined surface of the filter section 210 can also optimize the spatial structure inside the cavity 101 to achieve a better filtration effect.

[0064] In order to optimize the internal space of the dust chamber 101b and reduce airflow resistance, the included angle between the axis of the filter section 210 and the axis of the housing 100 can be 46°. In other embodiments, the included angle between the axis of the filter section 210 and the axis of the housing 100 can also be 30°, 50°, 68°, etc., with a preferred angle range of 25° to 75°. In some embodiments, the filter section 210 can also be an irregular spherical structure to increase the surface area; this application does not make specific limitations here.

[0065] In one embodiment, please refer to Figure 3 The filter section 210 includes a first opening 213 near the suction port 102 and a second opening 214 away from the suction port 102, and the cross-sectional diameter of the first opening 213 is smaller than that of the second opening 214; wherein the first opening 213, the second opening 214 and the suction port 102 are all coaxially arranged with the housing 100.

[0066] In some embodiments, in order to facilitate the dumping of garbage and reduce the probability of garbage falling when the user opens the dust chamber 101b, the distance from the first opening 213 of the filter section 210 to the suction port 102 is less than the distance from the second opening 214 to the suction port 102. However, in other embodiments, the distance from the first opening 213 to the suction port 102 is greater than the distance from the second opening 214 to the suction port 102, that is, the filter element 200 in this embodiment is flipped in the airflow direction.

[0067] For the fixing part 220, please refer to Figure 4 The filter element 200 also includes a fixing part 220, wherein all filter parts 210 are fixedly connected to the housing 100 through the fixing part 220.

[0068] Specifically, the fixing part 220 is installed inside the housing 100, and the filter part 210 and the fixing part 220 are fixedly connected. The fixing part 220 can be located upstream or downstream of the filter part 210 in the direction of airflow. The fixing part 220 is connected to the mounting assembly on the dust removal equipment 10 and is located at one end away from the dust suction port 102 for fixing the filter part 210.

[0069] In some embodiments, the fixing part 220 may have a receiving cavity for covering at least a portion of the filter part 210 starting from the second opening 214. That is, the second opening 214 of the filter part 210 and the fixing part 220 are connected to each other on the side near the dust inlet 102 in the airflow direction, and the filter part 210 is arranged around the inner wall of the housing 100 to divide the cavity 101 to form the mounting cavity 101a and the dust cavity 101b.

[0070] In some embodiments, please continue reading Figure 4 The dust removal device 100 may further include a filter sponge 300, which is connected to the filter section 210 via a fixing part 220, so that the filter element 200 is fixed and connected to the filter sponge 300. The filter sponge 300 is a solid annular structure, and has multiple through annular filter holes (not shown) on its upper and lower surfaces for filtering finer dust particles.

[0071] In some embodiments, the filter sponge 300 has a ring-shaped cotton cloth structure, and the second opening 214 of the filter element 200 is approximately flush with the filter sponge 300 on the side facing away from the dust inlet 102 in the airflow direction. The filter sponge 300 is used to filter dust particles with a smaller diameter than the filter element 200.

[0072] The filter sponge 300 is made of cotton cloth. When a small amount of liquid is drawn into the suction port 102, the cotton cloth can absorb it, preventing liquid from being drawn into the dust removal equipment and damaging its internal structure. Using cotton cloth as the material for the filter sponge 300 is the preferred embodiment of this application. In other embodiments, the filter sponge 300 can also be high-efficiency filter paper or other porous materials.

[0073] In one embodiment, the connection area between the filter element 200 and the filter sponge 300 has the same shape and size; wherein the diameter of the first type of dust particles filtered by the filter element 200 is larger than the diameter of the second type of dust particles filtered by the filter sponge 300.

[0074] Specifically, the second opening 214 of the filter element 200 and the filter sponge 300 are connected on the side of the airflow direction near the suction port 102. This area is circular in shape and the two are the same size, so that the filter element 200 and the filter sponge 300 can be closely connected.

[0075] In some embodiments, the filter element 200 is used to filter larger particles of waste, such as debris and dust, preventing them from entering the finer filter layer. The filter sponge 300 is responsible for filtering smaller particles, fine dust, allergens, etc., to improve the cleanliness of the air and emissions. Its filtration performance makes the cleaning equipment more efficient in handling different types of waste. Thus, the dust removal equipment 10 is set up with a two-layer filtration, which essentially increases the effective filtration area, thereby increasing the filtration effect and reducing the occurrence of reduced suction due to the filter surface being blocked by waste. In addition, the filter element 200 and the filter sponge 300 filter particles with different diameters, which facilitates the dumping of waste and the cleaning of the dust chamber 101b. This multi-layer filtration structure can capture waste of different sizes and types in sequence, reduce filter clogging, improve overall filtration efficiency, and reduce maintenance frequency.

[0076] The technical advantages of the above solution are as follows: Firstly, by housing the filter element inside a handheld mini-shell, the physical size of the dust removal equipment is greatly reduced, making the equipment easy to carry and suitable for cleaning needs in various situations, thereby improving the portability and operability of the dust removal equipment. Secondly, by differentiating itself from existing technologies, this solution achieves effective filtration of dust particles through a reasonable structural design of the filter element, which not only improves the filtration efficiency and service life of the dust removal equipment, but also optimizes the cleaning effect, making it suitable for various cleaning scenarios and enabling powerful cleaning.

[0077] Those skilled in the art will understand that Figures 1 to 4The filter element shown in the figure is merely a block diagram of a partial structure related to the present application and does not constitute a limitation on the dust removal equipment used thereon. The specific filter element may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0078] In one embodiment, please refer to Figure 5 The filter hole 212 is a waist-shaped filter hole 212' and / or a circular filter hole 212"; wherein the waist-shaped filter hole 212' and / or the circular filter hole 212" surround the central axis of the filter section 210 and are arranged in a circumferential array on the truncated conical surface 211 of the filter section 210.

[0079] Specifically, such as Figure 5 As shown in Figure a, a plurality of waist-shaped filter holes 212' are arranged in a circumferential array on the truncated conical surface 211' of the filter element 200', and each waist-shaped filter hole 212' surrounds the central axis of the filter section 210' in a clockwise direction; and, as Figure 5 As shown in b, multiple circular filter holes 212' are arranged in a circular array on the truncated conical surface 211' of the filter element 200', and the spacing between each circular filter hole 212' is the same.

[0080] In other embodiments, the filter holes 212 on the truncated conical surface 211 of the filter element 200 may also be of other shapes, such as triangular or elliptical filter holes, etc., which are not specifically limited here; and the circumferential direction of each filter hole 212 relative to the central axis of the filter section 210 can also be determined according to actual needs and is not limited to such shapes. Figure 5 The clockwise direction in a; furthermore, the spacing between the filter holes 212 on the truncated conical surface 211 and their distance relative to the central axis can be determined according to actual needs and are not limited to such a direction. Figure 5 The distance length in b.

[0081] In one embodiment, please continue to refer to Figure 5 In the case where the filter hole 212 is a waist-shaped filter hole 212', the angle between the minor axis of the waist-shaped filter hole 212' and the diameter direction of the truncated cone surface 211 in the direction perpendicular to the central axis of the filter section 210 is a preset acute angle θ'.

[0082] Specifically, continue as Figure 5As shown in Figure a, in the direction perpendicular to the central axis of the filter section 210', the angle between the minor axis direction L1' of any waist-shaped filter hole 212' and the diameter direction L2' of the truncated cone surface 211' is a preset acute angle θ'. This angle θ' can be any acute angle between 0 and 90°, such as 15°, 30°, 45°, etc., and is not specifically limited in this application.

[0083] In one embodiment, please continue to refer to Figure 5 When the filter hole 212 is a circular filter hole 212", the number of circles of the circular filter hole 212” arranged in a circumferential array on the truncated cone surface 211 is not less than two; wherein, on the truncated cone surface 211, the diameter of the circular filter hole 212” closer to the central axis is smaller than the diameter of the circular filter hole 212” farther from the central axis.

[0084] Specifically, continue as Figure 5 As shown in b, in the direction perpendicular to the central axis of the filter section 210”, each circular filter hole 212” is arranged in a circumferential array around the truncated cone surface 211”, and the number of circles is two. In the first circle of circular filter holes 212” close to the central axis of the filter section 210”, the diameter of each circular filter hole 212” is the same and is R1. In the second circle of circular filter holes 212” away from the central axis of the filter section 210”, the diameter of each circular filter hole 212” is also the same and is R2, where R1 < R2.

[0085] In some embodiments, the number of times each circular filter hole 212 surrounds the truncated conical surface 211 can be determined according to actual needs and is not limited to, for example... Figure 5 The two rings in b can also be set to three rings, four rings, etc., and this application does not make a specific limitation here; and the specific size of the filter hole diameter between the circular filter holes 212 of the same ring or between the circular filter holes 212 of different rings can also be determined according to actual needs, and is not limited to such Figure 5 In b, R1 < R2, for example, it can also be set as R1 = R2, R1 > R2, etc., but this application does not make specific limitations here.

[0086] In one embodiment, continue as follows Figure 4 As shown, the dust removal equipment 10 also includes a mounting frame 400, which includes a cylindrical annular structure and is fixedly connected to the housing 100. The diameter of the cylindrical annular structure is the same as the diameter of the first opening 213, so that the filter element 200 is sleeved and installed on the mounting frame 400, so that the filter element 200 is fixed inside the cavity 101 by the mounting frame 400.

[0087] Specifically, please refer to Figure 6The mounting bracket 400 includes a first mounting part 410, a second mounting part 420, and a mounting plate 430. The first mounting part 410 is a cylindrical ring structure, and the filter element 200 and the filter sponge 300 are both sleeved on the first mounting part 410. The second mounting part 420 is a cylindrical ring structure with a diameter larger than that of the first mounting part 410, and the cylindrical surface of the second mounting part 420 is fixedly connected to the housing 100. One end of the mounting plate 430 is connected to the first mounting part 410, and the other end is connected to the second mounting part 420, so as to fix the first mounting part 410 and the second mounting part 420 together.

[0088] The mounting plate 430 is a flat plate structure perpendicular to the airflow direction. The two ends of the mounting plate 430 are respectively connected to the first mounting part 410 and the second mounting part 420 perpendicular to the airflow direction. The mounting plate 430 is located on the side of the fixing part 220 away from the dust suction port 102. The filter element 200 and the filter sponge 300 are fixed in sequence on the side of the fixing part 220 near the dust suction port 102. In the direction perpendicular to the airflow, the inner ring diameter of the filter element 200 and the filter sponge 300 is the same as the diameter of the first mounting part 410, and both are smaller than the diameter of the second mounting part 420, thereby further making reasonable use of the effective filtration area of ​​the filter element 200 to increase the filtration effect.

[0089] In one embodiment, please continue to refer to Figure 6 The filter element 200 also includes a reinforcing ring 230, which is disposed on the side of the first opening 213 facing the second opening 214 and is flush with the second opening 214; wherein, the reinforcing ring 230 is used to increase the structural strength of the filter element 200.

[0090] Specifically, the reinforcing ring 230 is located on the side of the first opening 213 of the filter element 200 away from the dust inlet 102 and extends along the direction of airflow. The reinforcing ring 230 can increase the strength of the filter element 200 and reduce the deformation of the filter element 200 under the impact of airflow and debris, thereby improving the service life of the filter element 200.

[0091] In some embodiments, please refer to Figure 7 The first mounting part 410 and the second mounting part 420 together enclose a cylindrical cavity 401. The shape and size of the cavity 401 are the same as the second opening 214 of the filter sponge 300 and the filter element 200, so as to accommodate and fix all the filter sponge 300 and the fixing part 220 of the filter element 200 in the cavity 401.

[0092] Regarding the specific structure of the fixing part 220, as long as it can enable the installation of the filter element 200 and the filter sponge 300 on the housing 100, this application does not make specific limitations on it.

[0093] The mounting plate 430 not only connects the first mounting part 410 and the second mounting part 420, but also abuts against the second opening 214 of the filter sponge 300 and the filter element 200 in the airflow direction, thereby limiting and fixing the filter sponge 300 and the filter element 200 in the airflow direction. In addition, the mounting plate 430 is arranged in a circumferentially spaced manner, which allows the filtered gas to flow out axially from the first housing 110 while achieving the aforementioned functions.

[0094] The technical advantages of the above solution lie in its effective filtration of various types of waste through the rational structural design of the filter elements, filter sponge, and mounting bracket. This innovative design not only improves the filtration efficiency and lifespan of the cleaning equipment but also optimizes the cleaning effect, making it suitable for a variety of cleaning scenarios.

[0095] Dust removal equipment is widely used in industrial production and environmental protection, and its main function is to remove dust and pollutants from the air. As a crucial component of dust removal equipment, the way the filter element is fixed directly affects the equipment's performance and lifespan. Currently, many filter elements on the market have complex fixing structures, making installation and replacement inconvenient, and it is difficult to ensure the stability of the filtration effect. Therefore, in addition to disclosing the method of fixing the filter element to the housing using a mounting bracket in the above embodiments, this application also discloses the following two simpler, more efficient fixing methods that ensure the stability of the filter element.

[0096] In one embodiment, please refer to Figure 3 and Figure 8 The fixing part 200 includes a first fixing ring 221 and a connecting rib 222; wherein the connecting rib 222 is disposed in the cavity 101, and one end of the connecting rib 222 is fixed to the inner wall of the housing 100, and the other end is fixed to the first fixing ring 221, so as to fix the first fixing ring 221 in the cavity 101; and the first fixing ring 221 is disposed on the first opening 213, and the outline and size of the first fixing ring 221 are the same as those of the first opening 213, so as to fix the filter element 200 in the cavity 101 through the connecting rib 222.

[0097] Specifically, such as Figure 3 As shown, a first fixing ring 221 is provided at the first opening 213 of the filter element 200, and the outline and size of the first fixing ring 221 are exactly the same as those of the first opening 213. Further, as... Figure 8As shown, two connecting ribs 222 are provided in the inner wall of the housing 100, and one end of the connecting rib 222 is fixed to the inner wall of the housing 100, and the other end is fixed to the first fixing ring 221 to fix the first fixing ring 221 in the cavity 101. Therefore, the fixed connection between the filter element 200 and the cavity 101 can be achieved by setting the connecting rib 222 and the first fixing ring 221.

[0098] The number of connecting ribs 222 is multiple (e.g., 3 or 4), and the multiple connecting ribs 222 are arranged in a circumferential array around the axis of the first fixing ring 221. The connecting ribs 222 are respectively connected to the first fixing ring 221 and the inner wall of the housing 100.

[0099] In other embodiments, there may be two, five, or seven connecting ribs, arranged in a circumferential array around the axis of the first fixing ring 221. Alternatively, the number of connecting ribs may be set to only one while ensuring the installation strength of the first fixing ring 221. No specific limitation is made here.

[0100] In some embodiments, the connecting ribs 222 are arranged in a circumferential array along a direction perpendicular to the airflow (i.e., the axial direction of the housing 100), and the connecting ribs 222 are located on the side of the airflow direction near the suction port 102. From the connection point between the connecting rib 222 and the housing 100 to the connection point between the connecting rib 222 and the first fixing ring 221, the thickness of the connecting rib 222 gradually decreases, and its outline is smoothly transitioned. That is, the connecting rib 222 is recessed at the suction port 102. This can reduce the volume of the connecting rib 222 while ensuring the installation strength of the first fixing ring 221 and the housing 100. Furthermore, the smooth transition of the connecting rib 222 on the side near the suction port 102 can reduce the resistance when garbage is sucked into the dust chamber 101b, i.e., increase the suction strength.

[0101] In another embodiment, please refer to Figure 3 and Figure 8 The fixing part 200 includes a second fixing ring 223; wherein the inner side of the second fixing ring 223 is connected to the second opening 214, and the outline and size of the inner side of the second fixing ring 223 are the same as those of the second opening 214, so as to fix the second fixing ring 223 to the filter element 200; the outer side of the second fixing ring 223 is connected to the inner wall of the housing 100, and the outline and size of the outer side of the second fixing ring 223 are the same as those of the inner wall of the housing 100, so as to fix the filter element 200 inside the cavity 101 through the second fixing ring 223.

[0102] Specifically, such as Figure 3 As shown, a second fixing ring 223 is provided at the second opening 214 of the filter element 200, and the outline and size of the second fixing ring 223 are exactly the same as those of the second opening 214. Further, as...Figure 8 As shown, the outline and dimensions of the second fixing ring 223 are exactly the same as the outline and dimensions of the corresponding installation position in the housing 100, so that one end of the second fixing ring 223 is fixed to the inner wall of the housing 100 and the other end is fixed to the filter element 200, so as to fix the filter element 200 in the cavity 101. Therefore, by setting the second fixing ring 223, a fixed connection between the filter element 200 and the cavity 101 can be achieved.

[0103] In some embodiments, the installation of the mounting bracket 400, the installation of the second fixing ring 223, or the installation of the connecting rib 222 and the first fixing ring 221 are just three exemplary fixing methods for achieving a fixed connection between the filter element 200 and the cavity 101 in this application. In other embodiments, there may be other fixing methods. This application does not make specific limitations here, as long as the fixed connection between the filter element 200 and the cavity 101 is guaranteed.

[0104] The technical effect of the above solution is that, through the reasonable connection design of the filter element, the first fixing ring, the connecting rib and the second fixing ring, the fixing performance of the filter element is improved, which can effectively prevent loosening or displacement caused by vibration or airflow impact during operation, and ensure filtration efficiency. Thus, it can effectively solve the problems of unstable fixing and inconvenient replacement of filter elements in the existing technology, and has significant practical value and market prospects.

[0105] This utility model also provides a portable dust removal device 20, please refer to [link / reference]. Figure 9 and Figure 9 The portable dust removal device 20 includes the aforementioned filter element 200, filter cotton 300, cleaning accessory 910, drive source 920, power supply assembly 930, and air pressure assembly 940. The cleaning accessory 910 is located in the cavity 101 and partially extends out of the suction port 102. The cleaning accessory 910 cleans the surface to be cleaned by means of movement. The drive source 920 is located in the cavity 101 and is used to drive the movement of the cleaning accessory 910. The power supply assembly 930 is located in the cavity 101 and is used to filter solid waste from the airflow. The air pressure assembly 940 is located in the cavity 101 and is used to provide air pressure so that external waste can enter the cavity 101 through the suction port 102.

[0106] In some embodiments, such as Figure 10As shown, the portable dust removal device 20 of this application achieves miniaturization of the housing 100 and orderly arrangement of internal components through its unique structural design. For example, from the suction port 102 of the cavity 101 to the air outlet, the cleaning accessory 910, the drive source 920, the air pressure component 940, the power supply component 930, and other components of the portable dust removal device 20 (e.g., touch panel, air guide cover, etc.) with customized shape and size can be combined together to form a complete portable dust removal device 20. Among them, the cleaning accessory 910, the drive source 920, the air pressure component 940, and the power supply component 930 are connected in series in the cavity 101 to form a compact and efficient cleaning system, which can achieve powerful cleaning performance without occupying too much space.

[0107] In some embodiments, each component of the portable dust removal device 20 is detachably connected to the housing 100 or other components, making the assembly and subsequent disassembly of each component more convenient and efficient.

[0108] In some embodiments, one end of the cleaning accessory 910 is a mounting end, which is used to mount on the output shaft of the drive source 920 to realize power transmission between the cleaning accessory 910 and the drive source 920; the other end is a cleaning end, which is used to clean the surface to be cleaned under the drive of the drive source 920.

[0109] Optionally, the surface to be cleaned can be a flat surface or an uneven surface, a hard surface or a soft surface, etc. Furthermore, users can replace the corresponding matching cleaning accessory 910 to clean different types of surfaces, so as to achieve effective cleaning of the surface. Therefore, the cleaning accessory 910 is ingeniously designed and can flexibly meet the cleaning needs of different surfaces and environments.

[0110] In one embodiment, in order to ensure the strength of the mounting end of the cleaning accessory 910 and to prevent the excessively long mounting end and output shaft from deforming or being damaged under stress, the cleaning accessory 910 can be configured to partially extend out of the cavity 101 from the suction port 102. However, in other embodiments, the mounting end may not extend into the suction port 102, that is, the cleaning accessory 910 may be configured to extend entirely out of the suction port 102. In this case, part of the output shaft extends out of the suction port 102, and the mounting end and the output shaft are fixedly assembled.

[0111] In some embodiments, the drive source 920 is installed inside the cavity 101 and positioned after the cleaning accessory 910, responsible for driving the movement of the cleaning accessory 910 to achieve the cleaning capability of the device. The drive source 920 is a detachable and replaceable drive motor, which may be a rotary motor, a vibration motor, or an ultrasonic generator, etc.

[0112] For example, the drive source 920 can be a rotary motor, which drives the cleaning accessory by rotation, so that the cleaning accessory can rotate and clean the surface to be cleaned. The rotary motor can be used to clean oil stains or fingerprints on the surface. It can provide smooth rotational power to the cleaning accessory 910, so that the cleaning accessory 910 can effectively contact the surface to be cleaned, thereby efficiently removing the attached stains without damaging the surface.

[0113] For example, the drive source 920 can be a vibration motor, which drives the cleaning accessories by vibration, so that the cleaning accessories can vibrate and clean the surface to be cleaned. The vibration motor can be used to clean dust and dirt on the surface. The fine vibrations it generates can effectively loosen and shake off the dust attached to the surface, enhancing the cleaning effect, especially when dealing with fabrics or uneven surfaces.

[0114] For certain scenarios, such as deep cleaning of stubborn stains or fine particles, the drive source 920 can be an ultrasonic generator, which uses high-frequency sound waves to achieve a deep cleaning effect on the surface.

[0115] With the option of rotating motors, vibrating motors, and ultrasonic generators, the Drive Source 920 can provide optimal solutions for different cleaning needs, thereby meeting the cleaning requirements of homes, industries, and special environments.

[0116] In some embodiments, the air pressure assembly 940 is located inside the cavity 101 and is positioned after the power supply assembly 930. It is used to generate air pressure inside the cavity 101, which draws debris from the surface to be cleaned into the cavity 101 through the suction port. This function is effectively implemented in a small space, enhancing the device's suction capability.

[0117] The wind pressure assembly 940 may include a motor and a fan blade. The motor is fixedly installed in the housing 100 and housed in the cavity 101. The fan blade is sleeved on the motor's power shaft. The motor can drive the fan blade to rotate, thereby generating wind pressure in the cavity 101 and causing gas flow in the cavity 101, so that the garbage on the surface to be cleaned is sucked into the cavity 101 through the suction port 102.

[0118] In some embodiments, the power supply component 930 is sequentially disposed in the cavity and located between the air pressure component 940 and the drive source 920. Its function is to effectively filter the garbage entering the cavity 101, ensure the cleaning effect, and prevent the garbage from flowing back into the environment, thereby improving the safety of the user.

[0119] The power supply component 930 can be made of a microporous ceramic filter to filter larger dust particles; or a metal mesh, which is low in cost and has a good filtration effect; or a sponge filter layer to filter out larger substances in the air; or a HEPA filter layer to filter out smaller particles, and the filtration effect is better when used in combination.

[0120] In a specific implementation scenario, when the portable dust removal device 20 is working, the drive source 920 first drives the cleaning accessory 910 to move, so that the cleaning accessory 910 sweeps off the garbage on the surface to be cleaned; then the wind pressure assembly 940 drives the fan blades to rotate, thereby generating wind pressure in the cavity 101, so as to suck the garbage on the surface to be cleaned into the cavity 101 through the dust suction port 102; finally, the power supply assembly 930 filters the air carrying garbage in the suction cavity 101, so as to discharge the filtered clean air from the air outlet.

[0121] As a specific implementation, the portable dust removal device 20 includes at least a handheld dust removal pen for wireless handheld use and an automatic dust removal device for automatic opening and closing and dust collection.

[0122] This handheld dust removal pen features a wireless design, making it lightweight and portable, ideal for handheld use. Its ergonomic design allows for extended use during cleaning, reducing fatigue. This dust removal pen is suitable for cleaning dust and dirt from desktops, keyboards, windowsills, and other confined areas. The wireless design allows for easy movement, enhancing convenience and flexibility.

[0123] Among them, the automatic dust collector features intelligent on / off functions, allowing it to autonomously clean preset fixed areas according to a pre-set operating mode. During operation, it can be remotely controlled by the user or automatically turned on or off based on environmental conditions, thus improving user convenience. Furthermore, the dust collector can connect to other smart devices to achieve remote control and timed cleaning functions.

[0124] Since the portable dust removal device 20 of this application embodiment includes the filter element 200 for dust removal described above, the portable dust removal device 20 of this application embodiment has the beneficial effects of the filter element 200, which will not be elaborated here. Furthermore, this utility model embodiment provides a cleaning accessory 910, which is disposed through the first fixing part 510 of the mounting assembly 500. The filter element 200 and the filter sponge 300 are fixed in a ring-like manner within the first fixing part 510, which better adapts to the structure of the cavity 101 and provides a better shielding effect.

[0125] The technical advantages of the above solution are as follows: This device not only avoids the bulkiness and inconvenience of traditional cleaning tools, but also provides a portable, flexible, and efficient solution, meeting the expectations of modern users for portable cleaning equipment. Users can easily carry this device to every corner of their daily lives for cleaning at any time, improving their quality of life. Specifically, on the one hand, by using a method different from existing technologies, a handheld mini shell houses the cleaning accessories, drive source, air pressure component, and filter module within the cavity, greatly reducing the physical size of the dust removal device and achieving miniaturization, thereby improving the portability and operability of the dust removal device; on the other hand, this solution first uses the drive source to drive the cleaning accessories to clean the surface to be cleaned near the suction port, and then uses the air pressure component to generate air pressure within the cavity to suck the debris on the surface to be cleaned into the cavity through the suction port. Finally, the filter module within the cavity filters the sucked-in debris, thereby cleaning dirt such as dust and debris, effectively improving the cleanliness of dirt in hard-to-reach corners and crevices, thus achieving powerful cleaning.

[0126] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. Furthermore, those skilled in the art will readily conceive of other embodiments of this application upon considering the specification and practicing the invention applied herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary technical means in the art not claimed in this application. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0127] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A filter element for dust removal equipment, characterized in that, The dust removal device includes a handheld mini housing with a cavity inside and a suction port communicating with the outside at one end of the cavity; the filter element includes: A filter section is housed within the cavity. The filter section has a hollow truncated cone structure with the truncated cone surface facing the dust inlet. Multiple filter holes are provided on the truncated cone surface to filter the airflow drawn into the cavity from the dust inlet. A fixing part, one end of which is connected to the housing and the other end of which is connected to the filter part, so as to fix the filter element inside the cavity.

2. The filter element for dust removal equipment according to claim 1, characterized in that, The filter pores are waist-shaped filter pores and / or circular filter pores; The waist-shaped filter holes and / or the circular filter holes are arranged in a circumferential array around the central axis of the filter section on the truncated conical surface of the filter section.

3. The filter element for dust removal equipment according to claim 2, characterized in that, When the filter hole is a waist-shaped filter hole, the angle between the minor axis of the waist-shaped filter hole and the diameter direction of the truncated cone surface in the direction perpendicular to the central axis of the filter part is a preset acute angle.

4. The filter element for dust removal equipment according to claim 3, characterized in that, When the filter holes are circular, the number of circles of filter holes arranged in a circumferential array on the truncated cone surface shall not be less than two. Specifically, on the truncated cone surface, the diameter of the circular filter holes closer to the central axis is smaller than the diameter of the circular filter holes farther from the central axis.

5. The filter element for dust removal equipment according to claim 1, characterized in that, The filter section includes a first opening near the suction port and a second opening away from the suction port, wherein the cross-sectional diameter of the first opening is smaller than that of the second opening; The first opening, the second opening, and the dust suction port are all coaxially arranged with the housing.

6. The filter element for dust removal equipment according to claim 5, characterized in that, The dust removal equipment also includes a mounting frame, which has a cylindrical annular structure and is fixedly connected to the housing. The diameter of the cylindrical annular structure is the same as the diameter of the first opening, so that the filter element is sleeved and installed on the mounting bracket, and the mounting bracket fixes the filter element inside the cavity.

7. The filter element for dust removal equipment according to claim 5, characterized in that, The fixing part includes a first fixing ring and a connecting rib; The connecting rib is disposed in the cavity, and one end of the connecting rib is fixed to the inner wall of the shell, and the other end is fixed to the first fixing ring, so as to fix the first fixing ring in the cavity. The first fixing ring is disposed on the first opening, and the outline and size of the first fixing ring are the same as those of the first opening, so as to fix the filter element inside the cavity by means of the connecting rib.

8. The filter element for dust removal equipment according to claim 5, characterized in that, The fixing part includes a second fixing ring; The inner side of the second fixing ring is connected to the second opening, and the outline and size of the inner side of the second fixing ring are the same as those of the second opening, so as to fix the second fixing ring to the filter element. The outer side of the second fixing ring is connected to the inner wall of the housing, and the outline and size of the outer side of the second fixing ring are the same as those of the inner wall of the housing, so as to fix the filter element inside the cavity through the second fixing ring.

9. The filter element for dust removal equipment according to claim 5, characterized in that, The filter element further includes a reinforcing ring, which is disposed on the side of the first opening facing the second opening, and the reinforcing ring is flush with the second opening; The reinforcing ring is used to increase the structural strength of the filter element.

10. A portable dust removal device, characterized in that, The portable dust removal device includes a filter element for dust removal devices as described in any one of claims 1-9, and the portable dust removal device is used to filter the airflow drawn into the cavity from the suction port.

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