Mite removing and dust collecting device

Abstract

The utility model provides an acarus killing and dust collecting device which comprises a shell and a rolling brush assembly, and the shell is provided with a rolling brush cavity; the rolling brush assembly comprises a first rolling brush and a second rolling brush, the first rolling brush and the second rolling brush are rotationally arranged in the rolling brush cavity, the first rolling brush and the second rolling brush are arranged at intervals in the advancing direction of the mite removing and dust collecting device, the first rolling brush is located in front of the advancing direction of the mite removing and dust collecting device, and the rotation diameter of the first rolling brush is larger than that of the second rolling brush. The acarus killing and dust collecting device is good in cleaning effect.

Description

Technical Field

[0001] This application relates to the technical field of mite removal and dust suction devices, and particularly to a mite removal and dust suction device. Background Art

[0002] A mite removal vacuum cleaner, also known as a mite removal device, can be used to clean dust, as well as bacteria, viruses, mites and other allergens breeding on beds, sofas, carpets and other household items.

[0003] The mite removal vacuum cleaner includes a base, a roller brush, a dust collection cup and a negative pressure fan. The dust collection cup, the negative pressure fan and the roller brush are all installed on the base. The negative pressure fan is used to provide suction for the dust collection cup. The roller brush is arranged at the bottom of the base. When the base moves on the household surface, the roller brush can roll relative to the household surface and beat the household surface to expose the hidden dust mites. Then, the dust mites and the like are sucked into the dust collection cup through suction for recycling.

[0004] However, the cleaning effect of the mite removal vacuum cleaner in the related art is not good. Utility Model Content

[0005] Based on this, this application provides a mite removal and dust suction device to solve the problem that the cleaning effect of the mite removal and dust suction device in the related art is not good.

[0006] The mite removal and dust suction device provided by the embodiment of this application includes a housing and a roller brush assembly. The housing has a roller brush cavity.

[0007] The roller brush assembly includes a first roller brush and a second roller brush. The first roller brush and the second roller brush are both rotatably arranged in the roller brush cavity. The first roller brush and the first roller brush are arranged at intervals along the traveling direction of the mite removal and dust suction device, and the first roller brush is located in front of the traveling direction of the mite removal and dust suction device. The rotation diameter of the first roller brush is larger than that of the second roller brush.

[0008] The mite removal and dust suction device provided by the embodiment of this application is provided with a roller brush cavity for installing the roller brush assembly, a first roller brush for beating the surface to be cleaned so as to expose the dust mites and the like hidden deep inside, and a second roller brush for cleaning the dust mites and the like so as to facilitate the recycling of the dust mites and the like. In this way, the cleaning effect of the roller brush assembly is improved through the coordinated operation of the first roller brush and the second roller brush. By making the rotation diameter of the first roller brush larger than that of the second roller brush, the linear speed of the first roller brush is increased, and thus the beating effect of the first roller brush is improved. Therefore, the cleaning effect of the mite removal and dust suction device provided by the embodiment of this application is better.

[0009] In a possible implementation manner, in the height direction of the mite removal and dust suction device, the height of the rotation axis center of the first roller brush is the same as that of the rotation axis center of the second roller brush.

[0010] Thus, when the rotational diameter of the first rotary brush is greater than that of the second rotary brush, the first rotary brush is closer to the surface to be cleaned relative to the second rotary brush. As a result, the first rotary brush can contact the surface to be cleaned more fully to pat the surface to be cleaned, thereby improving the patting effect of the first rotary brush.

[0011] In a possible implementation, the rotational angular velocity of the first rotary brush is the same as that of the second rotary brush.

[0012] In this way, the first rotary brush and the second rotary brush are in a synchronous rotation state during operation. As a result, when the rotational diameter of the first rotary brush is greater than that of the second rotary brush, the linear velocity of the first rotary brush is greater than that of the second rotary brush, thereby enhancing the patting effect of the first rotary brush.

[0013] In a possible implementation, the difference between the rotational diameter of the first rotary brush and that of the second rotary brush is greater than or equal to 5 mm.

[0014] In this way, it is beneficial to increase the rotational diameter of the first rotary brush. Moreover, it is beneficial to allocate more power of the driving motor to the first rotary brush, thereby improving the patting effect of the first rotary brush.

[0015] In a possible implementation, the first rotary brush includes a first cylinder body and a first cleaning member disposed on the outer peripheral surface of the first cylinder body, and the second rotary brush includes a second cylinder body and a second cleaning member disposed on the outer peripheral surface of the second cylinder body. The hardness of the first cleaning member is less than that of the second cleaning member.

[0016] In this way, when the first cylinder body rotates, it can drive the first cleaning member to rotate synchronously, so that the first cleaning member pats the surface to be cleaned to expose hidden dust mites. When the second cylinder body rotates, it can drive the second cleaning member to rotate synchronously, so that the second cleaning member sweeps the dust mites on the surface to be cleaned. Moreover, the first cleaning member is softer than the second cleaning member, which can effectively improve the patting effect.

[0017] In a possible implementation, the second rotary brush protrudes from the bottom surface of the housing.

[0018] In this way, when the bottom surface of the housing is attached to the surface to be cleaned, the second rotary brush is in interference with the surface to be cleaned. As a result, when the second rotary brush rotates, the end of the second cleaning member can be partially deformed to sweep dust mites and the like on the surface to be cleaned, thereby improving the cleaning effect of the second rotary brush.

[0019] In a possible implementation, the height by which the second rotary brush protrudes from the bottom surface of the housing is greater than or equal to 2 mm.

[0020] In this way, when the bottom surface of the housing is attached to the surface to be cleaned, the second rotary brush can have sufficient interference with the surface to be cleaned, thereby effectively enhancing the cleaning effect of the second rotary brush.

[0021] In a possible implementation, the mite removal and dust suction device also includes a dust cup assembly, the shell has an air duct, and the roller brush chamber is connected to the dust cup assembly through the air duct.

[0022] In this way, the dust mites in the roller brush cavity can enter the dust cup assembly through the air duct and be collected.

[0023] In one possible implementation, the roller brush chamber includes a first roller brush chamber and a second roller brush chamber, the first roller brush is arranged in the first roller brush chamber, the second roller brush is arranged in the second roller brush chamber, and the first roller brush chamber, the second roller brush chamber, the air duct and the dust cup assembly are connected in sequence.

[0024] In this way, the first roller brush can be used to first beat the surface to be cleaned to lift the dust mites on the surface to be cleaned, and the dust mites in the first roller brush cavity are allowed to enter the second roller brush cavity through suction, and the second roller brush continues to clean the dust mites. Thereafter, the dust mites enter the dust cup assembly through the air duct. The first roller brush and the second roller brush operate in separate areas with clear division of labor, so that the mite removal and dust suction device can achieve the function of beating in front and sucking in the back, thereby improving the cleaning effect of the mite removal and dust suction device.

[0025] In a possible implementation, a first air inlet is provided between the first roller brush chamber and the second roller brush chamber, and the first roller brush chamber and the second roller brush chamber are connected through the first air inlet;

[0026] The second roller brush chamber has a second air inlet, and the second air inlet is connected to the air duct.

[0027] In this way, after the first roller brush lifts up the dust mites on the surface to be cleaned, the dust mites in the first roller brush cavity can enter the second roller brush cavity through the first air inlet. After the second roller brush continues to clean the dust mites, the dust mites can enter the air duct through the second air inlet and finally enter the dust cup assembly.

[0028] In a possible implementation, the second air inlet is located on a side of the second roller brush chamber away from the first roller brush chamber, and in the height direction of the mite removal and dust suction device, the second air inlet is higher than the rotation axis of the second roller brush.

[0029] In this way, the first roller brush chamber, the first air inlet, the second roller brush chamber and the second air inlet are arranged in sequence from front to back along the direction of travel of the dust mite removal suction device, so that the airflow can flow more smoothly. In addition, by making the second air inlet higher than the rotation axis of the second roller brush, when the dust mites move to the second air inlet, the inertial force of the dust mites themselves is directed obliquely upward and backward, and the direction of the suction force is also directed obliquely upward and backward. The directions of the two forces are consistent, so that the dust mites on the surface to be cleaned can be sucked away more efficiently.

[0030] In one possible implementation, the mite removal and dust suction device also includes a fan assembly, which has a third air inlet, the third air inlet is connected to the dust cup assembly, the cross-sectional area of the third air inlet is larger than the cross-sectional area of the second air inlet, and the cross-sectional area of the second air inlet is larger than the cross-sectional area of the first air inlet.

[0031] In this way, the pressure of the air flow decreases step by step along the flow direction of the air flow, and the air pressure at the first air inlet is relatively large, which can more efficiently suck the dust mites from the first air inlet into the second roller brush cavity, and then into the air duct through the second air inlet.

[0032] In a possible implementation, both the first roller brush and the second roller brush rotate in a counterclockwise direction.

[0033] In this way, when the mite removal and dust suction device moves forward, the first roller brush and the second roller brush can both sweep the dust mites backwards, thereby facilitating the dust mites to enter the air duct through the second air inlet located behind the moving direction of the mite removal and dust suction device.

[0034] In a possible implementation manner, the distance between the first roller brush and the second roller brush is smaller than the rotation diameter of the second roller brush.

[0035] In this way, the distance between the first roller brush and the second roller brush can be effectively controlled to avoid weakening the suction force of the fan assembly due to excessive distance between the first roller brush and the second roller brush, thereby improving the cleaning effect of the mite removal and dust suction device.

[0036] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the mite removal and dust collection device provided by the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 A schematic diagram of the structure of a dust mite removal device provided in an embodiment of the present application;

[0039] Figure 2 A schematic diagram of the internal structure of the dust mite removal device provided in an embodiment of the present application;

[0040] Figure 3 is Figure 2 a partially enlarged view of the dashed-line box in

[0041] Figure 4 is Figure 2 the front view of

[0042] Figure 5 is Figure 4 a partially enlarged view of the dashed-line box in

[0043] Description of reference numerals:

[0044] 100 - housing; 110 - brush roller chamber; 111 - first brush roller chamber; 112 - second brush roller chamber; 120 - first air inlet; 130 - second air inlet; 200 - brush roller assembly; 210 - first brush roller; 220 - second brush roller; 300 - fan assembly; 310 - third air inlet. Detailed implementation manners

[0045] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar components or components with the same or similar functions throughout. The described embodiments are some but not all of the embodiments of the present application. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application and should not be construed as limiting the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application. The embodiments of the present application will be described in detail below with reference to the drawings.

[0046] In the description of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, or an indirect connection through an intermediate medium, or the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0047] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is the orientation or positional relationship based on the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.

[0048] As used in the description, claims and the above drawings of this application, the terms "first", "second", "third" (if any) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein, for example.

[0049] In addition, the terms "comprising", "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or display comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or displays.

[0050] The mite removal vacuum cleaner includes a base, a roller brush, a dust collection cup and a negative pressure fan. The dust collection cup, the negative pressure fan and the roller brush are all installed on the base. The negative pressure fan is used to provide suction for the dust collection cup. The roller brush is arranged at the bottom of the base. When the base moves on the home surface, the roller brush can roll relative to the home surface and beat the home surface to expose the hidden dust mites. Then, the dust mites and the like are sucked into the dust collection cup through suction for recycling. However, the cleaning effect of the mite removal vacuum cleaner in the related art is not good.

[0051] In view of this, the embodiments of the present application provide a mite removal and vacuuming device. The mite removal and vacuuming device is provided with a first roller brush and a second roller brush at intervals along its traveling direction, so that the first roller brush is mainly used to beat the surface to be cleaned, and the second roller brush is mainly used to sweep the dust mites and other garbage on the surface to be cleaned. And the turning diameter of the first roller brush located in front of the mite removal and vacuuming device is larger than the turning diameter of the second roller brush located behind the mite removal and vacuuming device, which can strengthen the beating effect of the first roller brush and thus improve the cleaning effect of the mite removal and vacuuming device.

[0052] The following will describe in detail the specific implementation manners of the mite removal and vacuuming device provided by the embodiments of the present application with reference to the accompanying drawings.

[0053] Refer to Figures 1 to 5 As shown, the mite removal and vacuuming device provided by the embodiments of the present application includes a housing 100 and a roller brush assembly 200. The housing 100 has a roller brush cavity 110. The roller brush assembly 200 includes a first roller brush 210 and a second roller brush 220. The first roller brush 210 and the second roller brush 220 are both rotatably arranged in the roller brush cavity 110. The first roller brush 210 and the first roller brush 210 are arranged at intervals along the traveling direction of the mite removal and vacuuming device, and the first roller brush 210 is located in front of the traveling direction of the mite removal and vacuuming device. The turning diameter of the first roller brush 210 is larger than the turning diameter of the second roller brush 220. Among them, the traveling direction of the mite removal and vacuuming device can be referred to Figure 1 and Figure 4 the X direction in

[0054] It can be understood that the housing 100 is used to install the roller brush assembly 200, etc., and moves on the surface to be cleaned under the push of the user. The roller brush assembly 200 is used to rollingly contact the surface to be cleaned to pat the surface to be cleaned, so as to expose the dust mites hidden deep inside. Moreover, the roller brush assembly 200 can sweep the dust mites, and then under the action of suction, separate from the surface to be cleaned and then be collected, thereby realizing the cleaning of the surface to be cleaned.

[0055] In order to improve the cleaning effect of the roller brush assembly 200, in the embodiment of the present application, the roller brush assembly 200 includes a first roller brush 210 and a second roller brush 220. The first roller brush 210 and the second roller brush 220 can be arranged at intervals along the traveling direction of the mite removal and dust suction device, and the first roller brush 210 and the second roller brush 220 can be arranged in parallel, that is, the rotation axes of the first roller brush 210 and the second roller brush 220 are parallel.

[0056] Among them, since the first roller brush 210 is arranged in front of the traveling direction of the mite removal and dust suction device, and the second roller brush 220 is arranged behind the traveling direction of the mite removal and dust suction device, when the user pushes the mite removal and dust suction device to move forward on the surface to be cleaned, the first roller brush 210 can be mainly used to pat the surface to be cleaned to expose the dust mites hidden deep inside. After being patted by the first roller brush 210, the second roller brush 220 is mainly used to sweep the dust mites and other garbage on the surface to be cleaned, and finally the suction is used to recycle the garbage. In this way, the cleaning effect of the roller brush assembly 200 can be improved.

[0057] In order to improve the patting effect of the first roller brush 210, the rotation diameter of the first roller brush 210 can be set larger, and the rotation diameter of the second roller brush 220 can be set smaller. When the first roller brush 210 and the second roller brush 220 rotate synchronously, since the diameter of the first roller brush 210 is larger, the linear velocity of the first roller brush 210 is larger, which can improve the patting effect of the first roller brush 210, thereby improving the cleaning effect of the mite removal and dust suction device.

[0058] The mite removal and dust suction device provided by the embodiment of the present application includes a housing 100 and a roller brush assembly 200. The housing 100 includes a roller brush cavity 110, and the roller brush assembly 200 includes a first roller brush 210 and a second roller brush 220. By providing the roller brush cavity 110 for installing the roller brush assembly 200, by providing the first roller brush 210 for patting the surface to be cleaned so that dust mites and the like hidden deep inside are exposed, and by providing the second roller brush 220 for cleaning dust mites and the like, so as to facilitate the recovery of dust mites and the like. In this way, the first roller brush 210 and the second roller brush 220 cooperate to improve the cleaning effect of the roller brush assembly 200. By making the rotation diameter of the first roller brush 210 larger than that of the second roller brush 220, the linear speed of the first roller brush 210 is increased, thereby improving the patting effect of the first roller brush 210. Therefore, the cleaning effect of the mite removal and dust suction device provided by the embodiment of the present application is relatively good.

[0059] In a possible implementation manner, in the height direction of the mite removal and dust suction device, the height of the rotation axis center of the first roller brush 210 is the same as the height of the rotation axis center of the second roller brush 220. Among them, the height direction of the mite removal and dust suction device can refer to Figure 4 the Y direction in

[0060] In this way, when the rotation diameter of the first roller brush 210 is larger than that of the second roller brush 220, the first roller brush 210 is closer to the surface to be cleaned relative to the second roller brush 220, thereby enabling the first roller brush 210 to contact the surface to be cleaned more fully to pat the surface to be cleaned, thus improving the patting effect of the first roller brush 210.

[0061] In some embodiments, the rotational angular velocity of the first roller brush 210 is the same as the rotational angular velocity of the second roller brush 220.

[0062] That is to say, the first roller brush 210 and the second roller brush 220 are in a synchronous rotation state during operation. Therefore, when the rotation diameter of the first roller brush 210 is larger than that of the second roller brush 220, the linear speed of the first roller brush 210 is greater than the linear speed of the second roller brush 220, thereby enhancing the patting effect of the first roller brush 210.

[0063] In the above setting manner, the first roller brush 210 and the second roller brush 220 can be driven by the same drive motor so that the first roller brush 210 and the second roller brush 220 rotate synchronously, thereby simplifying the structure of the mite removal and dust suction device. Or, the first roller brush 210 and the second roller brush 220 can be driven by two drive motors respectively, as long as the angular velocity of the first roller brush 210 is the same as the angular velocity of the second roller brush 220.

[0064] In a possible implementation manner, the difference between the rotation diameter of the first roller brush 210 and the rotation diameter of the second roller brush 220 is greater than or equal to 5 mm.

[0065] It should be noted that when the first rotary brush 210 and the second rotary brush 220 are driven by the same drive motor, considering the limited load of the drive motor, in order to effectively improve the beating effect of the first rotary brush 210, the difference in the turning diameters of the first rotary brush 210 and the second rotary brush 220 needs to be greater than or equal to 5 mm or more. In this way, it is beneficial to increase the turning diameter of the first rotary brush 210, and it is also beneficial to make the power of the drive motor be more distributed to the first rotary brush 210, thereby improving the beating effect of the first rotary brush 210.

[0066] Exemplarily, the turning diameter of the first rotary brush 210 is 35 mm, and the turning diameter of the second rotary brush 220 is 30 mm.

[0067] In a specific implementation, the first rotary brush 210 includes a first cylinder body and a first cleaning member provided on the outer peripheral surface of the first cylinder body, the second rotary brush 220 includes a second cylinder body and a second cleaning member provided on the outer peripheral surface of the second cylinder body, and the hardness of the first cleaning member is less than the hardness of the second cleaning member.

[0068] It should be understood that the turning diameter of the first rotary brush 210 described in the above embodiment is the radial distance from the end of the first cleaning member to the rotary axis of the first cylinder body, and the turning diameter of the second rotary brush 220 is the radial distance from the end of the second cleaning member to the rotary axis of the second cylinder body.

[0069] When the first cylinder body rotates, it can drive the first cleaning member to rotate synchronously, thereby causing the first cleaning member to beat the surface to be cleaned, so that the hidden dust mites are exposed. When the second cylinder body rotates, it can drive the second cleaning member to rotate synchronously, thereby causing the second cleaning member to clean the dust mites on the surface to be cleaned. Moreover, the first cleaning member is relatively soft compared to the second cleaning member, which can effectively improve the beating effect.

[0070] For example, the first cleaning member can be made of rubber or soft rubber. In this way, the first cleaning member is relatively soft, and the first cleaning member is relatively heavy, and the force acting on the surface to be cleaned is relatively large, which can improve the beating effect of the first cleaning member. The second cleaning member can be made of relatively hard bristles to improve the cleaning effect of the second cleaning member.

[0071] In a possible implementation manner, the second rotary brush 220 protrudes from the bottom surface of the housing 100. In this way, when the bottom surface of the housing 100 is attached to the surface to be cleaned, the second rotary brush 220 is in interference with the surface to be cleaned. Thus, when the second rotary brush 220 rotates, the end of the second cleaning member can be partially deformed to clean the dust mites and the like on the surface to be cleaned, thereby improving the cleaning effect of the second rotary brush 220.

[0072] In some embodiments, the height by which the second roller brush 220 protrudes from the bottom surface of the housing 100 is greater than or equal to 2 mm. In this way, when the bottom surface of the housing 100 is in contact with the surface to be cleaned, the second roller brush 220 can have a sufficient interference amount relative to the surface to be cleaned, thereby effectively enhancing the cleaning effect of the second roller brush 220.

[0073] In a possible implementation, the mite removal and dust suction device further includes a dust cup assembly. The housing 100 has an air duct, and the roller brush chamber 110 communicates with the dust cup assembly through the air duct.

[0074] In this way, after the first roller brush 210 pats the surface to be cleaned, the second roller brush 220 can then be used to clean the surface to be cleaned. After that, under the action of suction, the dust mites enter the dust cup assembly through the air duct and are collected in the dust cup assembly.

[0075] Alternatively, the first roller brush 210 can be mainly used to pat the surface to be cleaned, and the raised dust mites are sucked into the dust cup assembly through the air duct. The second roller brush 220 can mainly clean the surface to be cleaned and suck the dust mites passing through the air duct into the dust cup assembly.

[0076] Refer to Figure 3 and Figure 5 As shown, in a specific implementation, the roller brush chamber 110 includes a first roller brush chamber 111 and a second roller brush chamber 112. The first roller brush 210 is disposed in the first roller brush chamber 111, and the second roller brush 220 is disposed in the second roller brush chamber 112. The first roller brush chamber 111, the second roller brush chamber 112, the air duct, and the dust cup assembly are sequentially connected.

[0077] That is to say, in the above arrangement, first, the first roller brush 210 is used to pat the surface to be cleaned to raise the dust mites on the surface to be cleaned, and the dust mites in the first roller brush chamber 111 enter the second roller brush chamber 112 under the action of suction. The second roller brush 220 continues to clean the dust mites, and then the dust mites enter the dust cup assembly through the air duct. The first roller brush 210 and the second roller brush 220 operate in different zones with clear division of labor. In this way, the mite removal and dust suction device can achieve the function of patting in the front and sucking in the back, thereby improving the cleaning effect of the mite removal and dust suction device.

[0078] Refer to Figure 3 and Figure 5 As shown, in a possible implementation, there is a first air inlet 120 between the first roller brush chamber 111 and the second roller brush chamber 112. The first roller brush chamber 111 and the second roller brush chamber 112 communicate through the first air inlet 120. The second roller brush chamber 112 has a second air inlet 130, and the second air inlet 130 communicates with the air duct.

[0079] That is to say, the airflow flows along the first roller brush chamber 111, the first air inlet 120, the second roller brush chamber 112, the second air inlet 130, the air duct and the dust cup assembly in sequence. It can be understood that the bottoms of the first roller brush chamber 111 and the second roller brush chamber 112 are open. When the bottom surface of the shell 100 is attached to the surface to be cleaned, the bottoms of the first roller brush chamber 111 and the second roller brush chamber 112 are blocked by the surface to be cleaned. When the first roller brush 210 lifts up the dust mites on the surface to be cleaned, the dust mites in the first roller brush chamber 111 can enter the second roller brush chamber 112 through the first air inlet 120. After the second roller brush 220 continues to clean the dust mites, the dust mites can enter the air duct through the second air inlet 130 and finally enter the dust cup assembly.

[0080] In a possible implementation, the second air inlet 130 is located on a side of the second roller brush chamber 112 away from the first roller brush chamber 111 , and in the height direction of the mite removal and dust suction device, the second air inlet 130 is higher than the rotation axis of the second roller brush 220 .

[0081] It should be understood that in order for the dust mites to enter the air duct through the second air inlet 130 after being cleaned by the second roller brush 220, the second air inlet 130 should be located on the side of the second roller brush chamber 112 away from the first roller brush chamber 111. In this way, the first roller brush chamber 111, the first air inlet 120, the second roller brush chamber 112 and the second air inlet 130 are arranged in sequence from front to back along the moving direction of the mite removal and dust suction device, which can make the airflow flow more smoothly.

[0082] Furthermore, when the dust mite removal and dust suction device moves forward, the dust mites need to be swept backwards, so that the dust mites can be efficiently gathered together. By making the second air inlet 130 higher than the rotation axis of the second roller brush 220, in the above-mentioned arrangement, when the dust mites move to the second air inlet 130, the inertial force of the dust mites themselves is directed toward the upper and rearward angle, and the direction of the suction force is also toward the upper and rearward angle. In this way, the directions of the two forces are consistent, and the dust mites on the surface to be cleaned can be more efficiently sucked away.

[0083] Reference Figure 2 and Figure 4 As shown, in a possible implementation, the mite removal and dust suction device also includes a fan assembly 300, which is used to provide suction. The fan assembly 300 has a third air inlet 310, and the third air inlet 310 is connected to the dust cup assembly. The cross-sectional area of the third air inlet 310 is larger than the cross-sectional area of the second air inlet 130, and the cross-sectional area of the second air inlet 130 is larger than the cross-sectional area of the first air inlet 120.

[0084] It can be understood that in the above setting method, the cross-sectional areas of the first air inlet 120, the second air inlet 130, and the third air inlet 310 increase in sequence, and the air flow flows along the first air inlet 120, the second air inlet 130, and the third air inlet 310 in sequence. In this way, along the flowing direction of the air flow, the pressure decreases step by step. The pressure of the first air inlet 120 is relatively large, which can make it more efficient to suck dust mites from the first air inlet 120 into the second brush roller chamber 112, and then suck them into the air duct through the second air inlet 130.

[0085] It should be noted that when the axis of the fan assembly 300 is perpendicular to Figure 4 the XY plane in Figure 4 and the XY plane in

[0086] is used to cut the mite removal and dust suction device, the cross-sectional areas of the first air inlet 120, the second air inlet 130, and the third air inlet 310 described in the above embodiments can be obtained. Figure 4 Or, when the axis of the fan assembly 300 is consistent with the traveling direction of the mite removal and dust suction device, a plane perpendicular to the axis of the fan assembly 300 is used to cut the mite removal and dust suction device, the cross-sectional area of the third air inlet 310 described in the above embodiments can be obtained, and then the XY plane in

[0087] is used to cut the mite removal and dust suction device, and the cross-sectional areas of the first air inlet 120 and the second air inlet 130 described in the above embodiments can also be obtained.

[0088] In a possible implementation manner, both the first brush roller 210 and the second brush roller 220 rotate counterclockwise. That is to say, when the mite removal and dust suction device is working, taking the horizontal surface to be cleaned as a reference, the rotation directions of the first brush roller 210 and the second brush roller 220 are the same, and both rotate counterclockwise. In this way, when the mite removal and dust suction device moves forward, both the first brush roller 210 and the second brush roller 220 can sweep the dust mites backward, which is beneficial for the dust mites to enter the air duct through the second air inlet 130 located behind the traveling direction of the mite removal and dust suction device.

[0088] In some embodiments, the distance between the first brush roller 210 and the second brush roller 220 is less than the turning diameter of the second brush roller 220.

[0089] In this way, the distance between the first brush roller 210 and the second brush roller 220 can be effectively controlled to avoid weakening the suction force of the fan assembly 300 due to the too large distance between the first brush roller 210 and the second brush roller 220, and thus the cleaning effect of the mite removal and dust suction device can be improved.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A mite-removing and dust-sucking device, characterized in that, It comprises a housing (100) and a rolling brush assembly (200), wherein the housing (100) has a rolling brush cavity (110); The roller brush assembly (200) comprises a first roller brush (210) and a second roller brush (220), wherein the first roller brush (210) and the second roller brush (220) are both rotatably disposed in the roller brush chamber (110), and the first roller brush (210) and the second roller brush (210) are spaced apart along the travel direction of the mite removal and dust suction device, and the first roller brush (210) is located in front of the travel direction of the mite removal and dust suction device, and the rotation diameter of the first roller brush (210) is greater than the rotation diameter of the second roller brush (220).

2. The mite-removing vacuuming device according to claim 1, wherein, In the height direction of the mite removal and dust suction device, the height of the rotation axis of the first roller brush (210) is the same as the height of the rotation axis of the second roller brush (220).

3. The mite-removing and dust-sucking device according to claim 2, characterized in that, The rotational angular velocity of the first roller brush (210) is the same as the rotational angular velocity of the second roller brush (220).

4. The mite-removing vacuum device according to claim 1, wherein, The difference between the rotation diameter of the first roller brush (210) and the rotation diameter of the second roller brush (220) is greater than or equal to 5 mm.

5. The mite-removing and dust-sucking device according to any one of claims 1-4, characterized in that, The first roller brush (210) comprises a first cylinder and a first cleaning member disposed on the outer peripheral surface of the first cylinder, and the second roller brush (220) comprises a second cylinder and a second cleaning member disposed on the outer peripheral surface of the second cylinder, and the hardness of the first cleaning member is smaller than the hardness of the second cleaning member.

6. The mite removal and dust suction device according to any one of claims 1-4, characterized in that, The second roller brush (220) protrudes from the bottom surface of the housing (100).

7. The mite removal and dust suction device according to claim 6, characterized in that, The height of the second roller brush (220) protruding from the bottom surface of the housing (100) is greater than or equal to 2 mm.

8. The mite-removing vacuum cleaner according to any one of claims 1 to 4, characterized in that, It also includes a dust cup assembly, the shell (100) has an air duct, and the rolling brush chamber (110) is connected to the dust cup assembly through the air duct.

9. The mite-removing vacuuming device according to claim 8, characterized in that, The roller brush chamber (110) comprises a first roller brush chamber (111) and a second roller brush chamber (112); the first roller brush (210) is arranged in the first roller brush chamber (111); the second roller brush (220) is arranged in the second roller brush chamber (112); the first roller brush chamber (111), the second roller brush chamber (112), the air duct and the dust cup assembly are connected in sequence.

10. The mite-removing vacuum cleaner according to claim 9, wherein, A first air inlet (120) is provided between the first rolling brush chamber (111) and the second rolling brush chamber (112); the first rolling brush chamber (111) and the second rolling brush chamber (112) are connected via the first air inlet (120); The second rolling brush chamber (112) has a second air inlet (130), and the second air inlet (130) is connected to the air duct.

11. The mite removal and dust suction device according to claim 10, characterized in that, The second air inlet (130) is located on a side of the second roller brush chamber (112) away from the first roller brush chamber (111), and in the height direction of the mite removal and dust suction device, the second air inlet (130) is higher than the rotation axis of the second roller brush (220).

12. The mite removal and dust suction device according to claim 10 or 11, characterized in that, It further includes a fan assembly (300), the fan assembly (300) having a third air inlet (310), the third air inlet (310) being communicated with the dust cup assembly, the cross-sectional area of the third air inlet (310) being larger than that of the second air inlet (130), and the cross-sectional area of the second air inlet (130) being larger than that of the first air inlet (120).

13. The mite removal and dust suction device according to any one of claims 1-4, characterized in that, Both the first roller brush (210) and the second roller brush (220) rotate in the counterclockwise direction.

14. The mite-removing and dust-sucking device according to any one of claims 1-4, characterized in that, The distance between the first roller brush (210) and the second roller brush (220) is less than the turning diameter of the second roller brush (220).

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