Dust removal suction nozzle of cleaning equipment and cleaning equipment

Abstract

The invention provides a dust removal suction nozzle of cleaning equipment and the cleaning equipment. The dust removal suction nozzle of the cleaning equipment can be connected to a main machine for providing negative pressure, and the dust removal suction nozzle comprises a main body part and a filtering part arranged at one end of the main body part; a dedusting air duct is arranged in the main body part, filtering holes with preset apertures are formed in the filtering part, and the dedusting air duct is communicated with the filtering holes; in the direction away from the main body part, at least part of the outer contour of the filtering part is constructed to be in a gradually-shrinking shape, and the maximum outer contour size of the filtering part is not larger than the outer contour size of the main body part. According to the dust removal suction nozzle, the main machine provides negative pressure, so that airflow mixed with particles with specific particle sizes enters the dust removal air duct in the main body part from the filtering holes of the filtering part and is finally collected by the main machine. And the shape of the filtering part is set, so that the dust removal suction nozzle can be conveniently inserted into a particulate matter environment, particulate matters can be easily stirred, and a relatively good adsorption effect on the particulate matters with specific particle sizes at different positions in the particulate matter environment is achieved.

Description

Technical Field

[0001] This disclosure belongs to the field of cleaning equipment technology, specifically relating to a dust removal nozzle and cleaning equipment. Background Technology

[0002] In the application of cleaning equipment, the removal of particulate matter of a certain size is frequently involved. Take a cat-owning household as an example; cat litter is typically used, and it inevitably produces fine dust particles. This dust not only adheres to the floor but also emits unpleasant odors and may increase the risk of disease for pets. However, completely dust-free cat litter products do not exist. To control costs, some pet owners have to resort to sieving to remove the dust, a process that causes significant inconvenience. Summary of the Invention

[0003] Currently, cleaning equipment cannot be used in environments where multiple particles of different sizes are mixed and some of these particles need to be removed. Taking cat litter dust removal as an example, fine dust is typically removed from the cat litter through a sieve. This method is bulky and requires moving the cat litter to the sieve. After sieving, the litter must be removed from the dust removal device, as the dust cannot be removed in its original position, making the operation complicated.

[0004] The purpose of this disclosure is to provide a dust suction nozzle and cleaning equipment for a cleaning device that can solve the problem of complex operation in dust removal in particulate environments.

[0005] Firstly, in order to achieve the above objectives, a specific embodiment of this disclosure provides a dust removal nozzle for a cleaning device, the technical solution of which is as follows:

[0006] A dust removal nozzle for a cleaning device can be connected to a host that provides negative pressure. The dust removal nozzle includes a main body and a filter part disposed at one end of the main body.

[0007] The main body is provided with a dust removal air duct, and the filter part is provided with filter holes of a preset diameter. The dust removal air duct is connected to the filter holes.

[0008] In the direction away from the main body, at least a portion of the outer contour of the filter portion is gradually tapered, and the maximum outer contour dimension of the filter portion is not greater than the outer contour dimension of the main body.

[0009] In one or more embodiments of this disclosure, the filter portion includes a support member connected to the main body portion and a filter element cooperating with the support member, wherein the filter holes are formed on the filter element.

[0010] In one or more embodiments of this disclosure, the support member includes a plurality of support rods extending from one end of the main body portion, the plurality of support rods gradually approaching each other in a direction away from the main body portion.

[0011] In one or more embodiments of this disclosure, the area of ​​the reference surface profile intercepted by the reference plane decreases linearly in the direction away from the body portion, and / or the reference surface profile is constructed as a frustum, wherein the reference surface is a surface tangent to the outer sidewall of the plurality of support rods, and the reference plane is a plane perpendicular to the axis of the body portion.

[0012] In one or more embodiments of this disclosure, the filter element covers the support member, and the filter element forms the outline of the filter section; or,

[0013] The filter element is housed within the support space inside the support member, and the support member forms the outline of the filter section.

[0014] In one or more embodiments of this disclosure, the support member has a connecting portion at one end away from the main body, and the connecting portion and the side wall opposite to the main body are provided with abutting portions, and the filter member abuts between the abutting portions.

[0015] In one or more embodiments of this disclosure, the area of ​​the filter element's outline intercepted by the reference plane gradually decreases in the direction away from the main body.

[0016] In one or more embodiments of this disclosure, the outer profile of the filter element is frustoconical; and / or, the area of ​​the outer profile of the filter element cut by the reference plane decreases linearly.

[0017] In one or more embodiments of this disclosure, the density of the filter pores gradually increases in the direction away from the main body; and / or,

[0018] The filter holes include multiple sets of filter hole arrays arranged in a straight line, and the distance between adjacent sets of filter hole arrays gradually decreases in the direction away from the main body.

[0019] In one or more embodiments of this disclosure, the filter element is a metal filter element; and / or,

[0020] The support member has a spherical contact surface at the end away from the main body.

[0021] In one or more embodiments of this disclosure, the outer contour of the filter portion is configured to gradually shrink to a preset position in a direction away from the main body portion, wherein the preset position passes through the axis of the main body portion or deviates from the axis of the main body portion.

[0022] Secondly, a specific embodiment of this disclosure provides a cleaning device, the technical solution of which is as follows:

[0023] A cleaning device, including a dust removal nozzle as described above.

[0024] The beneficial effects of this disclosure, which differ from existing technologies, include:

[0025] The dust suction nozzle of the cleaning device disclosed herein can be connected to a main unit that provides negative pressure. In use, the dust suction nozzle can be inserted into a mixture of particles of different sizes. The negative pressure provided by the main unit allows airflow containing particles of a specific size to enter the dust collection duct within the main body through the filter holes of the filter section, and is ultimately collected by the structure at the main unit end. The preset aperture of the filter section prevents larger particles from passing through while allowing smaller particles to pass, thus achieving the separation of small particles. At least a portion of the filter section has a gradually tapering outer contour, facilitating its insertion into the particulate environment and thus providing good adsorption for particles of a specific size at different depths. Simultaneously, the shape design of the filter section facilitates stirring of the dust suction nozzle in the particulate environment. This stirring operation increases the cleaning power for particles of a specific size at different locations within the mixed particles and prevents some particles from clogging the filter holes and affecting the adsorption power for particles of a specific size when stationary. The entire process can quickly remove particles of a specific size from mixed particulate matter, which is both dust-free and convenient, effectively reducing the cleaning workload for users.

[0026] In the dust suction nozzle of the cleaning device disclosed herein, the filter section includes a support member connected to the main body and a filter element that cooperates with the support member. The support member provides support for the filter element, making it easier to agitate particles and less prone to deformation during use, while also facilitating the attachment and installation of the filter element. Furthermore, by configuring the support member and filter element as two separable parts, the user can replace the filter element with one that has a different preset pore size according to the size of particles of a specific particle size, thereby improving the adaptability for suctioning particles of different sizes.

[0027] In the dust removal nozzle of the cleaning device disclosed herein, the area of ​​the reference surface outline cut off by the reference plane is linearly reduced in the direction away from the main body, and / or the outline of the reference surface is constructed in a frustum shape, which facilitates the insertion of the dust removal nozzle into the particles, thereby removing particles of a specific size located at different depths.

[0028] In the dust suction nozzle of the cleaning equipment disclosed herein, the support member has a connecting part at the end away from the main body, and abutting parts are provided on the side walls opposite to the main body of the connecting part, with the filter element held between the abutting parts. The presence of abutting parts on both the connecting part and the main body facilitates quick positioning and installation of the filter element, making operation more convenient.

[0029] In the dust suction nozzle of the cleaning device disclosed herein, the area of ​​the filter element's outline cut off by the reference plane gradually decreases in the direction away from the main body. When the filter element is disposed outside the support member, its shape is designed to have "spiky" ends, making it easy for the user to insert it into particles to adsorb particles of a specific size.

[0030] In the dust removal nozzle of the cleaning device disclosed herein, the density of the filter pores gradually increases in the direction away from the main body; and / or, the filter pores comprise multiple arrays of filter pores arranged in a straight line, with the distance between adjacent arrays of filter pores gradually decreasing in the direction away from the main body. Due to the shape of the dust removal nozzle, the area of ​​the filter portion at the distal end away from the main body is small. Therefore, by densely arranging the filter pores at the distal end, the adsorption effect on particles of a specific size in the vicinity can be increased.

[0031] In the dust removal nozzle of the cleaning device disclosed herein, the support member has a spherical contact surface at the end away from the main body. This contact surface, without affecting the ease of insertion of the dust removal nozzle into particulate environments, allows for more flexible angle changes of the nozzle based on this spherical contact surface to agitate the particles, thereby improving the suction effect on particles of a specific size. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a cleaning device in one embodiment of the present disclosure;

[0034] Figure 2 This is a schematic diagram of the structure of the dust suction nozzle of the cleaning device in one embodiment of the present disclosure;

[0035] Figure 3 This is a schematic cross-sectional view of the dust suction nozzle of a cleaning device in one embodiment of the present disclosure;

[0036] Figure 4This is an exploded structural diagram of the dust removal nozzle of a cleaning device in one embodiment of the present disclosure;

[0037] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0038] Figure 6 This is one of the simplified schematic diagrams of the dust suction nozzle of the cleaning device in one embodiment of the present disclosure;

[0039] Figure 7 This is a second simplified schematic diagram of the structure of the dust removal nozzle of the cleaning device in one embodiment of this disclosure;

[0040] Figure 8 This is the third simplified schematic diagram of the structure of the dust removal nozzle of the cleaning device in one embodiment of the present disclosure;

[0041] Figure 9 This is a simplified schematic diagram of the structure of the dust removal nozzle of the cleaning device in one embodiment of the present disclosure;

[0042] Figure 10 for Figure 3 Enlarged view of point B in the middle;

[0043] Figure 11 This is a schematic diagram of the adapter structure in one embodiment of the present disclosure.

[0044] Explanation of key figure labels:

[0045] 1. Dust suction nozzle; 11. Main body; 12. Filter section; 121. Filter hole; 122. Support component; 1221. Support rod; 123. Filter component; 124. Connecting part; 125. Abutting part; 13. Adapter; 131. Connecting plate; 132. Rib; 133. Positioning post; 14. Snap-fit ​​component; 141. Button; 15. Connecting part; 151. Inner sleeve; 152. Outer sleeve; 1521. Slot; 153. Connecting post; 16. Spring; 2. Main unit. Detailed Implementation

[0046] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0047] Existing cleaning equipment is mainly used for treating planar or near-planar working environments, and cannot meet the needs of removing particulate matter of certain sizes in particulate environments. As explained above in this disclosure, using cat litter dust removal as an example, the inconvenience of removing particulate matter of certain sizes in particulate environments has been illustrated. Based on this problem, this disclosure focuses on the dust removal nozzle of the cleaning equipment, making overall structural improvements to effectively solve the aforementioned problems. Consequently, it can effectively remove fine dust from cat litter without transferring the litter, and the operation is quick and convenient.

[0048] It should be noted that, in the embodiments of this disclosure, the specific structure of the dust removal nozzle and cleaning equipment is described using a cat litter dust removal scenario as an example. This is merely illustrative and not limiting.

[0049] Specifically, the dust removal nozzle disclosed herein can be connected to a host that provides negative pressure. The dust removal nozzle includes a main body and a filter part disposed at one end of the main body. A dust removal air duct is disposed inside the main body, and a filter hole with a preset aperture is opened on the filter part. The dust removal air duct communicates with the filter hole. In the direction away from the main body, at least a portion of the outer contour of the filter part is gradually tapered, and the maximum outer contour dimension of the filter part is not greater than the outer contour dimension of the main body.

[0050] When the main unit is running, the dust suction nozzle can be at least partially (e.g., at least partially of the filter section) inserted into the particulate environment. The main unit provides negative pressure, causing the airflow containing particles of a specific size to enter the dust collection duct within the main unit through the filter holes of the filter section, and ultimately be collected by the main unit. The preset aperture of the filter section prevents large particles from passing through, while allowing small particles of a specific size to pass through, thus quickly separating particles of that size. When using the aforementioned dust suction nozzle, the user does not need to transfer the mixed particles; simply inserting it into the mixed particles and agitating it appropriately is sufficient to remove particles of a specific size, effectively improving operational convenience. Specifically, it can be used to remove fine dust from cat litter.

[0051] Compared to the flat design of the filter section in a dust removal nozzle, the filter section of this disclosure has at least a gradually tapering outer contour in the direction away from the main body, corresponding to the formation of "spiky" ends. These spikes facilitate insertion into particulate matter to remove particles of specific sizes located at different depths. Simultaneously, the shape design of the filter section facilitates agitation of the dust removal nozzle in a particulate environment. This agitation enhances the cleaning power for particles of specific sizes at different locations within the particulate environment and prevents some particles from clogging the filter pores and affecting the adsorption capacity for particles of specific sizes when stationary.

[0052] The entire process enables the rapid removal of particles of a specific size in a mixed particulate environment without requiring the user to transfer the mixed particles for sieving. It is dust-free and convenient, effectively reducing the user's cleaning workload.

[0053] Furthermore, to facilitate the agitation of particles by the filter section for the removal of particles of a specific size and to improve adaptability to particles of different sizes, the dust suction nozzle of the cleaning equipment disclosed herein includes a filter section comprising a support member connected to the main body and a filter element that cooperates with the support member. The support member provides support for the filter element, preventing deformation during agitation and facilitating particle agitation, while also facilitating the attachment and installation of the filter element. In addition, by configuring the support member and the filter element as two separable parts, the user can replace the filter element with one having a different preset pore size according to the size of the particles of a specific size, thereby improving adaptability to the removal of particles of different sizes.

[0054] Furthermore, to facilitate the insertion of the dust suction nozzle into the particles and thereby remove particles of specific sizes located at different depths, the dust suction nozzle of the cleaning device of this disclosure has a linearly decreasing area of ​​the reference curved surface intercepted by the reference plane in the direction away from the main body, and / or the outer contour of the reference curved surface is constructed in a frustum-shaped form. The reference curved surface is a curved surface tangent to the outer walls of the plurality of support rods, and the reference plane is a plane perpendicular to the axis of the main body.

[0055] Furthermore, in order to facilitate the quick positioning and installation of the filter element, in the dust removal nozzle of the cleaning equipment disclosed herein, the support member is provided with a connecting part at the end away from the main body, and the connecting part and the side wall opposite to the main body are provided with abutting parts, and the filter element is held between the abutting parts.

[0056] Furthermore, to facilitate insertion of the filter element into the mixed particulate matter by the user, in the dust suction nozzle of the cleaning device of this disclosure, the area of ​​the filter element's outline cut off by the reference plane gradually decreases in the direction away from the main body. The shape of the filter element is designed to form a "spiky" end, making it easy for the user to insert it into the mixed particulate matter.

[0057] Furthermore, to ensure the adsorption effect of the filter section on particles of specific sizes at different depths, the dust removal nozzle of the cleaning device disclosed herein has a gradually increasing density of filter holes in the direction away from the main body; and / or, the filter holes include multiple arrays of filter holes arranged in a straight line, with the distance between adjacent arrays of filter holes gradually decreasing in the direction away from the main body. Due to the shape of the dust removal nozzle, the area of ​​the filter section at the far end away from the main body is small. Therefore, by densely arranging filter holes at the far end, the adsorption effect on particles of specific sizes located in that area can be increased.

[0058] Furthermore, in order to facilitate the user to shake the dust suction nozzle to agitate particulate matter, the dust suction nozzle of the cleaning device disclosed herein has a spherical contact surface at the end of the support member away from the main body, which allows for more flexible angle changes of the dust suction nozzle.

[0059] The technical solutions of this disclosure are further described in detail below with reference to specific embodiments and accompanying drawings.

[0060] In a first aspect, the present disclosure provides a detailed dust removal nozzle for a cleaning device.

[0061] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a cleaning device according to one embodiment of the present disclosure. The dust suction nozzle 1 of the cleaning device in one embodiment of the present disclosure can be connected to a main unit 2 that provides negative pressure. The cleaning device in this embodiment can be a handheld vacuum cleaner, and the main unit 2 can be the main unit 2 of a handheld vacuum cleaner, which may be equipped with a dust cup. When the main unit 2 is running, negative pressure can be generated at the end of the dust suction nozzle 1 away from the main unit 2 to adsorb particles of a specific size into the dust cup, thereby completing the removal of particulate matter of a certain size from the particulate environment. In the following embodiments, cat litter dust removal is specifically used as an example for illustrative purposes to provide a healthier living environment for people and pets, and is not intended to limit the particulate environment in this disclosure. Dust can be understood as particulate matter of a specific size as described above.

[0062] Please refer to Figure 2 , Figure 2 This is a schematic diagram of the structure of a dust removal nozzle 1 of a cleaning device according to an embodiment of the present disclosure. The dust removal nozzle 1 of the cleaning device includes a main body 11 and a filter part 12 disposed at one end of the main body 11; a dust removal air duct is provided inside the main body 11, and the filter part 12 has filter holes 121 of a preset diameter (please refer to...). Figure 4 The dust removal duct is connected to the filter hole 121; in the direction away from the main body 11, at least part of the outer contour of the filter part 12 is gradually tapered, and the maximum outer contour dimension of the filter part 12 is not greater than the outer contour dimension of the main body 11.

[0063] Please combine Figure 1 and Figure 3 , Figure 3This is a cross-sectional structural diagram of the dust removal nozzle of a cleaning device according to an embodiment of the present disclosure. Specifically, the main body 11 can be a tube containing the aforementioned dust removal duct. In use, the dust removal nozzle 1 is connected to the main unit 2 of the cleaning device, and then the dust removal nozzle 1 can be inserted into the cat litter. When the main unit 2 is running, it provides negative pressure, allowing airflow carrying dust to enter the dust removal duct within the main body 11 through the filter holes 121 of the filter section 12, and ultimately be collected by the dust cup of the main unit 2. The preset aperture of the filter section 12 allows cat litter to pass through while dust passes through, thus separating the cat litter and dust. It is understood that the filter section 12 with different preset apertures of filter holes 121 can be replaced depending on the size of the cat litter. Specifically, depending on the type of cat litter, the mesh size of the filter holes 121 of the filter section 12 can be set between 20 and 60 mesh.

[0064] Compared to conventional designs of vacuum nozzles, the filter section 12 of this disclosure has at least a gradually tapering outer contour in the direction away from the main body 11, facilitating its insertion into the cat litter and thereby removing dust from the litter at different depths. Please refer to... Figure 2 In this embodiment, the entire outer contour of the filter section 12 is gradually tapering. In other embodiments, a portion of the outer contour of the filter section 12 is gradually tapering. Please refer to... Figure 6 , Figure 6 This is one of the schematic diagrams of the structure of the dust suction nozzle of the cleaning device in one embodiment of the present disclosure. For example, the outer contour of the filter section 12 that is close to the main body section 11 can be arranged in a similar straight cylindrical shape, while the outer contour of the filter section 12 that is far away from the main body section 11 can be gradually tapered.

[0065] Understandably, as long as the outer contour of the filter section 12 is constricted relative to the outer contour of the main body 11, especially by forming a "spiky" end through constriction, the desired effect of easy insertion into the cat litter can be achieved. Furthermore, the aforementioned shape of the filter section 12 also facilitates the stirring of the cat litter, which on the one hand increases the cleaning power of dust in different locations within the cat litter, and on the other hand prevents some cat litter from clogging the filter holes 121 and affecting the adsorption power when stationary. Specifically, when the dust suction nozzle is inserted into the cat litter, it needs to push aside the cat litter particles in its path, which requires overcoming the static friction between the particles. The aforementioned shape of the filter section 12, through the concentration of pressure and force during insertion, more easily overcomes the resistance of the cat litter particles to the movement of the filter section 12 during insertion. In contrast, if the filter section 12 is cylindrical, the resistance of the particles to the movement of the filter section 12 is greater, making it more difficult to insert and stir the cat litter.

[0066] The entire process can quickly remove dust from the cat litter without requiring users to transfer and sift the litter. It is dust-free and convenient, effectively reducing the cleaning workload for users.

[0067] Please refer to Figure 3 , Figure 4 as well as Figure 5 , Figure 4 This is an exploded view of the dust suction nozzle of the cleaning device in one embodiment of the present disclosure. Figure 5 for Figure 3 Enlarged schematic diagram at point A. The filter section 12 includes a support member 122 connected to the main body 11 and a filter element 123 that cooperates with the support member 122. Filter holes 121 are formed on the filter element 123. The support member 122 can be used to provide support for the filter element 123, which can reduce the deformation of the filter element 123 that may occur during the stirring process, thereby affecting the dust removal effect on cat litter. At the same time, the support member 122 can also facilitate the attachment and installation of the filter element 123. It is understood that, in an optional embodiment, when the material strength of the filter element 123 is high enough, the filter section 12 may not be provided with the above-mentioned support member 122, and the dust removal of cat litter can also be achieved by only providing the filter element 123 with filter holes 121. In this embodiment, the filter element 123 can be a metal filter element 123, specifically made of stainless steel. The above material can ensure that the filter element 123 has a certain strength, can generate as little deformation as possible during the stirring process, and is not easily worn by hard particles.

[0068] Please refer to Figure 3 and Figure 4 In this embodiment, the filter section 12 includes a support member 122 and a filter member 123. The filter member 123 covers the support member 122, and the filter member 123 forms the outer contour of the filter section 12; or, the filter member 123 is housed in the support space inside the support member 122, and the support member 122 forms the outer contour of the filter section 12. It can be understood that both of the above-mentioned positional relationships between the support member 122 and the filter member 123 can provide support for the filter member 123 through the support member 122, thereby reducing the possibility of deformation of the filter member 123, without affecting the filtration of dust in the cat litter. Wherein, when the filter member 123 covers the support member 122, the above-mentioned "spiky" end can be formed through the filter member 123; when the filter member 123 is housed in the support space inside the support member 122, the above-mentioned "spiky" end can be formed through the support member 122, both of which facilitate the insertion of the dust suction nozzle 1 into the cat litter.

[0069] The accompanying drawings of this embodiment illustrate the dust suction nozzle 1 by showing the filter element 123 covering the support element 122 as an example. This is not a limitation on its position. In other embodiments, the filter element 123 may also be housed in the support space inside the support element 122, and this disclosure does not impose any limitations on this.

[0070] Please refer to Figure 3 , Figure 4 as well as Figure 5 The support member 122 includes a plurality of support rods 1221 extending from one end of the main body 11, with the support rods 1221 gradually approaching each other in a direction away from the main body 11. In this embodiment, four support rods 1221 are provided as an example for illustration; in other embodiments, the number of support rods 1221 can be one, two, three, five, or even more. The gaps between the support rods 1221 allow dust to pass through without affecting the dust removal effect. The support rods 1221 can be integrally formed with the main body 11. In the manufacturing process, a support plate can be formed at one end of the main body 11 first, and the support rods 1221 can be formed by hollowing out the support plate.

[0071] Please refer to Figure 4 and Figure 5 In one optional embodiment, the area of ​​the reference surface intercepted by the reference plane decreases linearly in the direction away from the main body, and / or the outer contour of the reference surface is constructed as a frustum-shaped cone. The reference surface is a surface tangent to the outer walls of the plurality of support rods 1221, and the reference plane is a plane perpendicular to the axis of the main body 11. The axis of the main body 11 can be referenced... Figure 3 The dotted line indicated by mark 'a'. When the filter element 123 is housed within the support space inside the support element 122, the shape of the outer contour of the reference surface corresponding to the plurality of support rods 1221 facilitates the formation of a "spiky" end for the filter section 12, making it easy to insert into the cat litter for dust removal. In this embodiment, the outer contour of the reference surface is frustum-shaped. In other embodiments, the area of ​​the outer contour of the reference surface cut off by the reference plane can also be linearly reduced, and it can also form a "spiky" end to facilitate the insertion of the dust removal nozzle into the cat litter and facilitate stirring.

[0072] Please refer to Figure 5 In one optional embodiment, the area of ​​the filter element 123 intercepted by the reference plane gradually decreases in the direction away from the main body 11. The outer contour of the filter element 123 can be constructed in a frustum shape, specifically a cone, a pyramid, or other frustum shapes.

[0073] In another embodiment, the area of ​​the filter element 123 intercepted by the reference plane can decrease linearly or non-linearly, both of which can form a "spiky" end for easy insertion into the cat litter. For example, the shape of the filter element 123 can be as follows: Figure 7 As shown, in the direction away from the main body, the rate of decrease in the area of ​​the filter element 123 intercepted by the reference plane can be initially fast and then slow down (non-linear decrease). Alternatively, the shape of the filter element 123 can be as follows: Figure 8As shown, in the direction away from the main body, the rate of decrease in the area of ​​the filter element 123 intercepted by the reference plane can be slow at first and then fast (non-linear decrease). The reference plane is a plane perpendicular to the axis of the main body 11; the axis of the main body 11 can be found in [reference needed]. Figure 7 and Figure 8 The dotted lines in the text. Understandably, all of the above methods can make the filter part 12 form a "spiky" end, so that the dust suction nozzle 1 can be inserted into the cat litter to absorb dust.

[0074] Please refer to Figure 4 In this embodiment, the outer contour of the reference surface corresponding to the support member 122 is frustoconical, and the outer contour of the filter member 123 can also be frustoconical, which allows at least a portion of the outer contour of the filter portion 12 to be gradually tapering. The matching shapes of the two facilitate installation and improve the support effect of the support member 122 on the filter member 123. In other embodiments, the support member 122 can also have other shapes to provide support for the filter member 123, and the shapes of the two may not be exactly the same.

[0075] Please refer to 4 and Figure 5 The support member 122 has a connecting portion 124 at the end away from the main body 11. Each side wall of the connecting portion 124 opposite to the main body 11 has an abutment portion 125, and the filter element 123 abuts against the abutment portions 125. Specifically, the abutment portion 125 can be configured as a step, with the filter element 123 abutting against the step surface. In this embodiment, the two ends of the filter element 123 abutting against the abutment portions 125 of the connecting portion 124 facilitates its quick positioning and installation.

[0076] Please refer to Figure 5 The support member 122 has a spherical contact surface at the end away from the main body 11, which can be specifically provided on the connecting part 124. When the dust suction nozzle 1 is inserted into the cat litter, the spherical contact surface can provide a fulcrum for the user to rotate and stir the cat litter. Compared to designing the connecting part 15 as a block, the spherical contact surface allows for more flexible angle changes of the dust suction nozzle 1.

[0077] Please refer to Figure 5 In the direction away from the main body 11, the density of the filter holes 121 gradually increases; and / or, the filter holes 121 include multiple arrays of filter holes 121 arranged in a straight line, and the distance between adjacent arrays of filter holes 121 gradually decreases in the direction away from the main body 11. Due to the shape of the dust suction nozzle 1, the area of ​​the filter section 12 at the far end away from the main body 11 is small. Therefore, by densely arranging the filter holes 121 at the far end, the adsorption effect of dust in the cat litter located nearby can be increased.

[0078] Please refer to Figure 5In the direction away from the main body 11, the outer contour of the filter section 12 gradually tapers to a preset position, wherein the preset position passes through the axis of the main body 11, or the preset position deviates from the axis of the main body 11. In this embodiment, combined with Figure 3 The filter element 12 is positioned on the axis of the main body 11, and at least part of its outer contour gradually tapers. In this case, the outer contour of the filter element 123 tapers towards the axis, making it more uniform and easier to insert into the cat litter to adsorb dust.

[0079] Please refer to Figure 9 In another optional embodiment, the preset position may be offset from the axis of the main body 11, which can be seen from the axis of the main body 11. Figure 9 The dotted line in the image. In this case, the "spiked" end of the filter element 123 is biased to one side of the axis of the main body 11. When the user inserts the dust suction nozzle 1 into the cat litter at an angle, the "spiked" end of the filter element 123 is designed to be angled accordingly, which also makes it easier for the user to insert the dust suction nozzle 1 into the cat litter.

[0080] Please refer to 1 and Figure 3 The dust suction nozzle 1 may also include an adapter 13 and a snap-fit ​​connector 14. The adapter 13 can connect the main body 11 and the main unit 2 of the cleaning equipment. The quick-connect structure formed by the adapter 13 and the snap-fit ​​connector 14 facilitates the quick assembly of the dust suction nozzle 1 onto the main unit 2.

[0081] Please refer to Figure 3 and Figure 4 The dust suction nozzle 1 may also include a connecting part 15, and the outer peripheral wall of the adapter 13 is provided with a movable snap-fit ​​member 14, which can snap onto the connecting part 15.

[0082] Please refer to Figure 3 , Figure 4 as well as Figure 10 , Figure 10 for Figure 3 Enlarged schematic diagram at point B. The connecting part 15 may include an inner sleeve 151 disposed at the end of the main body 11 away from the filter part 12 and an outer sleeve 152 sleeved outside the inner sleeve 151. The adapter 13 is inserted into the inner sleeve 151. The outer sleeve 152 has a slot 1521, and a snap-fit ​​member 14 has a protruding button 141. The snap-fit ​​member 14 has a tendency to snap the button 141 into the slot 1521. Specifically, a spring 16 can be provided between the snap-fit ​​member 14 and the adapter 13, and the spring 16 has elastic potential energy to drive the snap-fit ​​member 14 away from the adapter 13. Please refer to... Figure 10 and Figure 11 , Figure 11 This is a schematic diagram of the adapter structure in one embodiment of the present disclosure. The outer wall of the adapter 13 may be provided with a positioning post 133, and the spring 16 is sleeved on the positioning post 133 to position it.

[0083] Please refer to Figure 10 In the axial direction of the main body, the extension length of the inner sleeve 151 is less than the extension length of the outer sleeve 152; when the adapter 13 is assembled in the preset assembly position of the main body 11, the button 141 of the snap-fit ​​14 is located inside the outer sleeve 152 and outside the inner sleeve 151.

[0084] Please refer to Figure 4 and Figure 10 A connecting post 153 is provided between the outer sleeve 152 and the inner sleeve 151, and a connecting plate 131 is provided on the periphery of the adapter 13. The connecting plate 131 and the connecting post 153 are fixedly connected by fasteners. Therefore, through the initial locking of the snap-fit ​​14 and the restriction of the fasteners, the adapter 13 can be effectively fixed to the main body 11.

[0085] Please refer to Figure 1 and Figure 11 The outer wall of the adapter 13 is provided with a raised rib 132, the extension direction of which is parallel to the axial direction of the adapter 13; the size of the raised rib 132 gradually decreases in the direction away from the main body 11 of the adapter 13. The raised rib 132 can guide the adapter 13 to be assembled to the main unit 2, which improves the ease of assembly between the dust suction pipe 1 and the main unit 2.

[0086] Secondly, this disclosure also provides a cleaning device.

[0087] Please refer to Figure 1 The cleaning device in this embodiment includes the dust removal nozzle 1 described above, and may also include a main unit 2 connected to the dust removal nozzle 1. The main unit 2 can provide negative pressure to the dust removal nozzle 1 to facilitate the adsorption of dust located in the cat litter through the dust removal nozzle 1. In this embodiment, a handheld vacuum cleaner is used as an example for illustrative purposes, and this is not intended to limit the type of cleaning device.

[0088] Understandably, cleaning equipment equipped with the aforementioned dust suction nozzle 1 can effectively filter dust from cat litter, providing a healthier environment for pets and people. During use, the dust suction nozzle 1 can be inserted into the cat litter to clean dust at different depths. Simultaneously, the dust suction nozzle 1 can be used to agitate the cat litter, increasing the cleaning power while preventing some litter from clogging the filter holes 121 and affecting adsorption. This entire process achieves rapid removal of dust from the cat litter, is dust-free and convenient, effectively reducing the user's cleaning workload.

[0089] In the description of the embodiments of this disclosure, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly placed when the product of this application is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this disclosure and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0090] In the description of the embodiments of this disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0091] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0092] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dust suction nozzle for a cleaning device, connectable to a main unit providing negative pressure, characterized in that, The dust removal nozzle includes a main body and a filter part disposed at one end of the main body; The main body is provided with a dust removal air duct, and the filter part is provided with filter holes of a preset diameter. The dust removal air duct is connected to the filter holes. In the direction away from the main body, at least a portion of the outer contour of the filter portion is gradually tapered, and the maximum outer contour dimension of the filter portion is not greater than the outer contour dimension of the main body.

2. The dust suction nozzle of the cleaning equipment according to claim 1, characterized in that, The filter section includes a support member connected to the main body and a filter member that cooperates with the support member, and the filter holes are formed on the filter member.

3. The dust suction nozzle of the cleaning equipment according to claim 2, characterized in that, The support member includes a plurality of support rods extending from one end of the main body, the plurality of support rods gradually approaching each other in a direction away from the main body.

4. The dust suction nozzle of the cleaning equipment according to claim 3, characterized in that, In the direction away from the main body, the area of ​​the reference surface intercepted by the reference plane decreases linearly, and / or the outline of the reference surface is constructed as a frustum, wherein the reference surface is a surface tangent to the outer sidewall of the plurality of support rods, and the reference plane is a plane perpendicular to the axis of the main body.

5. The dust suction nozzle of the cleaning equipment according to any one of claims 2-4, characterized in that, The filter element covers the support member, and the filter element forms the outline of the filter section; or... The filter element is housed within the support space inside the support member, and the support member forms the outline of the filter section.

6. The dust suction nozzle of the cleaning equipment according to claim 5, characterized in that, The support member has a connecting part at the end away from the main body, and the connecting part and the side wall opposite to the main body are provided with abutting parts, and the filter member abuts between the abutting parts.

7. The dust suction nozzle of the cleaning equipment according to claim 5, characterized in that, In the direction away from the main body, the area of ​​the filter element intercepted by the reference plane gradually decreases.

8. The dust suction nozzle of the cleaning equipment according to claim 7, characterized in that, The outer contour of the filter element is frustoconical; and / or, the area of ​​the outer contour of the filter element cut by the reference plane decreases linearly.

9. The dust suction nozzle of the cleaning equipment according to claim 2, characterized in that, The density of the filter pores gradually increases in the direction away from the main body; and / or, The filter holes include multiple sets of filter hole arrays arranged in a straight line, and the distance between adjacent sets of filter hole arrays gradually decreases in the direction away from the main body.

10. The dust suction nozzle of the cleaning equipment according to claim 2, characterized in that, The filter element is a metal filter element; and / or, The support member has a spherical contact surface at the end away from the main body.

11. The dust suction nozzle of the cleaning equipment according to claim 1, characterized in that, In a direction away from the main body, the outer contour of the filter portion gradually contracts to a preset position, wherein the preset position passes through the axis of the main body or deviates from the axis of the main body.

12. A cleaning device, characterized in that, The cleaning device includes a dust suction nozzle as described in any one of claims 1-11.

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