Dust collection device and cleaning equipment

Abstract

The utility model provides a dust collecting device and cleaning equipment, and relates to the technical field of cleaning products. The dust collecting device comprises a dust cup, a first filter, a second filter and a third filter, the dust cup is provided with a first containing cavity, a second containing cavity and a first air inlet communicated with the first containing cavity, the first filter is arranged in the first containing cavity, and the second filter is arranged in the second containing cavity. The outer side of the first filter is communicated with the first air inlet, the inner side of the first filter is communicated with the second containing cavity, the second filter is provided with a second air inlet communicated with the second containing cavity, the dust cup is provided with an air outlet, the air outlet is communicated with the interior of the second filter, and the third filter and the air outlet are oppositely arranged; a first dust collection cavity is formed in the first containing cavity, a second dust collection cavity is defined by the second filter, the good separation effect on dust and impurities is achieved, and the situation that the third filter is blocked by granular impurities can be avoided.

Description

Technical Field

[0001] This application relates to the technical field of cleaning products, and particularly relates to a dust collection device and a cleaning equipment. Background Art

[0002] Currently, with the improvement of living quality, people's demand for cleaning tools is becoming more and more extensive, and automated cleaning equipment is widely used because it can liberate physical labor. Cleaning equipment such as vacuum cleaners and dust mites removers can be used to remove dust and worms.

[0003] In related technologies, cleaning equipment with a dust suction function such as a vacuum cleaner is usually provided with a fan and a dust collection device. The fan can generate negative pressure suction, and the airflow formed by the suction sucks external dust impurities into the dust collection device. A filter element is provided in the dust collection device. After the airflow enters the dust collection device, it needs to pass through the filter element for filtration to separate the dust impurities from the airflow, and the filtered clean airflow is then discharged from the dust collection device.

[0004] However, currently, the dust collection device of the cleaning equipment has a poor separation effect on dust impurities and is prone to cause blockage of the filter element. Utility Model Content

[0005] This application provides a dust collection device and a cleaning equipment to solve the technical problem that the dust collection device of the current cleaning equipment has a poor separation effect on dust impurities and is prone to cause blockage of the filter element.

[0006] In a first aspect, this application provides a dust collection device, which includes a dust cup, a first filter, a second filter, and a third filter. The dust cup has a first accommodation cavity, a second accommodation cavity, and a first air inlet communicating with the first accommodation cavity. The first filter is arranged in the first accommodation cavity, and the second filter is arranged in the second accommodation cavity.

[0007] The outside of the first filter communicates with the first air inlet, the inside of the first filter communicates with the second accommodation cavity, the second filter has a second air inlet communicating with the second accommodation cavity, the dust cup has an air outlet, the air outlet communicates with the inside of the second filter, and the third filter is arranged opposite to the air outlet; a first dust collection cavity is arranged in the first accommodation cavity, and the second filter surrounds to form a second dust collection cavity.

[0008] The dust collecting device provided by the present application filters the airflow sucked into the dust collecting device in sequence by arranging two filters in the dust cup, wherein the first filter can filter out dust impurities with larger particles, and separate the large particle impurities into the first dust collecting chamber, and the second filter can filter and separate the airflow filtered by the first filter, and settle the dust impurities with smaller particles into the second dust collecting chamber, and finally the airflow flowing out of the second filter can be filtered by the third filter and then discharged from the dust collecting device, so that the granular dust impurities and the airflow have a good separation effect, which can avoid the granular dust impurities from clogging the third filter, and facilitate the cleaning of the dust collecting device after use.

[0009] As an optional implementation, the first accommodating chamber has a cyclone channel, and the first air inlet is located on the side of the cyclone channel; the cyclone channel is arranged around the circumferential outer side of the first filter.

[0010] With such an arrangement, the centrifugal force can be utilized to quickly separate and settle the particulate impurities in the airflow entering the first accommodating chamber, thereby improving the separation effect of the impurities.

[0011] As an optional implementation, the first dust collecting chamber may be located below the cyclone passage and the first filter.

[0012] With such an arrangement, the space in the dust cup can be fully utilized to collect the impurities separated by the first filter.

[0013] As an optional embodiment, a partition wall is provided inside the dust cup, and the partition wall is configured to separate the inside of the dust cup into a first accommodating chamber and a second accommodating chamber; the partition wall has a connecting port, and the first filter is connected to the connecting port to connect the inner side of the first filter with the second accommodating chamber.

[0014] This arrangement can prevent large particles of impurities collected in the first dust collecting chamber from entering the second accommodating chamber.

[0015] As an optional embodiment, the first filter may include a filter screen and a connecting portion, the connecting portion being connected to the side of the filter screen and connected to the inner side of the filter screen, and the end of the connecting portion facing away from the filter screen being connected to the connecting port; the contour shape of the end of the connecting portion facing away from the filter screen matches the contour shape of the connecting port.

[0016] Such an arrangement can improve the smoothness of the flow of air from the inside of the first filter into the second accommodating cavity.

[0017] As an optional implementation, a protrusion is provided on the side of the connecting portion toward one end of the connecting port, and the protrusion is blocked at the outer edge of the connecting port.

[0018] Such an arrangement can limit the connection portion and prevent dust and impurities from leaking out.

[0019] As an alternative embodiment, the second filter may include a cyclone support and a dust collection cylinder; the second air inlet is located on the side of the cyclone support; the dust collection cylinder is connected to one end of the cyclone support facing away from the air outlet, and one end of the dust collection cylinder facing away from the cyclone support abuts against the inner wall of the dust cup and encloses to form a second dust collection chamber.

[0020] This setting can improve the separation efficiency of particulate impurities and air flow in the second filter.

[0021] As an alternative embodiment, the cyclone support has a conical air duct, the second air inlet communicates with the first end of the conical air duct, and the second end of the conical air duct faces the second dust collection chamber; the ventilation cross-sectional area of the second end of the conical air duct is smaller than that of the first end of the conical air duct.

[0022] With this setting, after the air flow enters the inside of the cyclone support, the dust and impurity particles therein can settle through the conical air duct to achieve a good separation effect.

[0023] As an alternative embodiment, a ventilation pipe is provided at the air outlet, and at least a part of the ventilation pipe is inserted into the conical air duct.

[0024] This setting can ensure that the air flow enters the ventilation pipe after the impurities are fully settled and separated, and it is inevitable that impurity particles enter the ventilation pipe.

[0025] As an alternative embodiment, there may be a plurality of second air inlets, and the plurality of second air inlets are arranged at intervals around the outer side wall of the ventilation pipe; the plurality of second air inlets are all communicated with the conical air duct.

[0026] This setting allows the air flow to enter the inside of the cyclone support from different directions on the circumferential side of the cyclone support, increasing the air flow rate.

[0027] As an alternative embodiment, the cyclone support has a plurality of first air guiding parts; the plurality of first air guiding parts are all connected to the first end of the conical air duct and are distributed at intervals around the circumference of the conical air duct; a second air inlet is formed between adjacent first air guiding parts.

[0028] This setting can guide the air flow to flow into the conical air duct at the second air inlet, reduce the wind resistance, and improve the smoothness of the air flow.

[0029] As an alternative embodiment, the first air guiding part extends from the outside of the end of the conical air duct along an arc direction towards the inside of the end of the conical air duct; the plurality of first air guiding parts are centrosymmetric with respect to the central axis of the conical air duct.

[0030] This setting can guide the air flow to rotate when entering the conical air duct, so as to achieve a better rotational settlement effect of dust and impurity particles by using centrifugal force.

[0031] As an optional embodiment, there are multiple conical air ducts and multiple air outlets, and the multiple air outlets are arranged in a one-to-one correspondence with the multiple conical air ducts; there are multiple second air inlets, and the multiple second air inlets are distributed at circumferential intervals around the cyclone bracket, and each conical air duct is connected to at least one second air inlet.

[0032] With such an arrangement, the airflow can be diverted through multiple conical air ducts at the same time, and the particle impurities can be settled at the same time, thereby achieving a good effect of separating particles from the airflow.

[0033] As an optional embodiment, the cyclone bracket has a second air guide portion and a plurality of third air guide portions; the second air guide portion is located at the end of the cyclone bracket and divides the end of the cyclone bracket into a plurality of ventilation areas, each ventilation area is correspondingly provided with at least one conical air duct and at least one third air guide portion. The third air guide portion is located on the side of the conical air duct away from the second air guide portion, and a second air inlet is formed between the two ends of the third air guide portion and the second air guide portion.

[0034] Such a setting can guide the diverted airflow, improve the smoothness of airflow, and reduce wind resistance and wind noise.

[0035] As an optional embodiment, the dust cup may include a dust cup body, an air duct upper cover and a bottom cover, wherein the air duct upper cover is connected to a first end of the dust cup body, and the bottom cover is connected to a second end of the dust cup body. The first filter is connected to the air duct upper cover; and / or, the air outlet is located at the air duct upper cover, and the second filter is connected to the air duct upper cover.

[0036] Such an arrangement can improve the convenience of overall disassembly and assembly of the first filter and the second filter.

[0037] As an optional implementation, the side of the air duct upper cover facing away from the first filter has a receiving groove, and the third filter can be arranged in the receiving groove; the contour shape of the third filter matches the contour shape of the receiving groove.

[0038] With such an arrangement, the airflow flowing out of the dust cup can be fully filtered to ensure the cleanliness of the airflow.

[0039] As an optional embodiment, the dust cup may further include a first seal, which is arranged around the circumferential outer side of the air duct upper cover, and the first seal abuts against the inner wall of the dust cup body.

[0040] Such an arrangement can improve the sealing performance of the dust cup.

[0041] As an optional embodiment, the dust cup may further include a second seal, which is attached to a side surface of the bottom cover facing the interior of the dust cup body, and the end cavity wall of the second dust collecting cavity abuts against the second seal.

[0042] With such a setting, the sealing performance of the second dust collection chamber can be improved.

[0043] As an alternative embodiment, the dust cup may further include a locking member and an elastic member. The locking member is rotatably connected to the outer side wall of the dust cup body, and the elastic member abuts between the locking member and the outer side wall of the dust cup body. The first end of the locking member has a locking portion, and the edge of the bottom cover has a locking groove. The locking portion can be engaged with or separated from the locking groove to lock or unlock the bottom cover relative to the dust cup body.

[0044] With such a setting, the convenience of opening and closing the bottom cover can be improved, facilitating the cleaning and maintenance of the dust cup.

[0045] In a second aspect, the present application provides a cleaning device, which includes a device main body and the dust collection device in the above technical solution. The dust collection device is detachably connected to the device main body.

[0046] The present application provides a dust collection device, which includes a dust cup, a first filter, a second filter, and a third filter. The dust cup has a first accommodation cavity, a second accommodation cavity, and a first air inlet communicating with the first accommodation cavity. The first filter is disposed in the first accommodation cavity, and the second filter is disposed in the second accommodation cavity. The outside of the first filter communicates with the first air inlet, and the inside of the first filter communicates with the second accommodation cavity. The second filter has a second air inlet communicating with the second accommodation cavity. The dust cup has an air outlet, and the air outlet communicates with the inside of the second filter. The third filter is disposed opposite to the air outlet. A first dust collection cavity is provided in the first accommodation cavity, and the second filter surrounds to form a second dust collection cavity. The particulate dust impurities have a good separation effect from the air flow, which can prevent the particulate dust impurities from clogging the third filter and facilitate the cleaning of the dust collection device after use.

[0047] In addition to the technical problems solved by the embodiments of the present application described above, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features of the technical solutions, the other technical problems that the dust collection device and the cleaning device provided by the present application can solve, the other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0049] Figure 1Schematic structural diagram of the dust collection device provided by the embodiment of the present application;

[0050] Figure 2 Cross-sectional view of the dust collection device provided by the embodiment of the present application;

[0051] Figure 3 Explosion Figure 1 ;

[0052] Figure 4 Explosion Figure 2 ;

[0053] Figure 5 Assembly drawing of the first filter and the second filter in the dust collection device provided by the embodiment of the present application;

[0054] Figure 6 Schematic internal structure diagram of the dust cup in the dust collection device provided by the embodiment of the present application;

[0055] Figure 7 Schematic diagram of the air flow circulation in the dust collection device provided by the embodiment of the present application;

[0056] Figure 8 Cross-sectional view of another structure of the dust collection device provided by the embodiment of the present application;

[0057] Figure 9 Assembly drawing of the first filter and the second filter of another structure of the dust collection device provided by the embodiment of the present application;

[0058] Figure 10 Schematic diagram of the air flow circulation of another structure of the dust collection device provided by the embodiment of the present application;

[0059] Figure 11 Explosion of the first filter and the upper air outlet cover of another structure of the dust collection device provided by the embodiment of the present application Figure 1 ;

[0060] Figure 12 Explosion of the first filter and the upper air outlet cover of another structure of the dust collection device provided by the embodiment of the present application Figure 2 ;

[0061] Figure 13 Cross-section of the cleaning device provided by the embodiment of the present application Figure 1 ;

[0062] Figure 14 Cross-section of the cleaning device provided by the embodiment of the present application Figure 2 。

[0063] Description of reference numerals:

[0064] 10 - Dust collection device;

[0065] 100 - Dust cup; 101 - First accommodating cavity; 102 - Second accommodating cavity; 103 - Cyclone channel; 104 - First air inlet; 105 - Air outlet; 106 - First dust collection cavity; 107 - Clamping groove; 110 - Dust cup body; 111 - Partition wall; 112 - Communication port; 120 - Bottom cover; 121 - Locking groove; 130 - Air duct upper cover; 131 - Accommodating groove; 132 - Ventilation pipe; 140 - First seal; 150 - Dust blocking piece; 151 - Clamping portion; 160 - Second seal; 170 - Locking piece; 171 - Locking portion; 180 - Elastic member;

[0066] 200 - First filter; 210 - Filter mesh; 220 - Communication portion; 221 - Protrusion portion;

[0067] 300 - Second filter; 301 - Second air inlet; 302 - Second dust collection cavity; 310 - Cyclone bracket; 311 - Conical air duct; 312 - First air guiding portion; 313 - Second air guiding portion; 313a - Ventilation area; 314 - Third air guiding portion; 320 - Dust collection cylinder;

[0068] 400 - Third filter;

[0069] 20 - Equipment main body. Detailed implementation mode

[0070] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, or an indirect connection through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. 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 situations.

[0071] 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 based on the orientation or positional relationship shown in 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 component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0072] The terms "first", "second", "third" (if any) in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects and do not necessarily 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 this application described herein can be implemented in an order different from those illustrated or described herein, for example.

[0073] In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or maintenance tool that comprises a series of steps or units does not necessarily limit 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 maintenance tools.

[0074] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts belong to the scope of protection of this application.

[0075] Cleaning devices with dust suction functions such as vacuum cleaners are usually provided with a fan and a dust collection device. The fan can generate negative pressure suction, and the airflow formed by the suction sucks external dust and mites into the dust collection device. A filter element is provided in the dust collection device. After the airflow enters the dust collection device, it needs to pass through the filter element for filtration to separate dust impurities from the airflow. The filtered clean airflow is then discharged from the dust collection device to prevent dust impurities from entering the fan and causing damage to the fan, and at the same time prevent dust impurities from being discharged into the atmosphere again and causing secondary pollution.

[0076] However, the current dust collection devices of cleaning devices have poor separation effects on dust impurities. When large particles are collected and settled, small particle impurities cannot be effectively collected, which easily causes blockage of the filter element, resulting in poor dust suction effects. After long-term use, it will cause difficulties in cleaning the dust collection device.

[0077] To solve the above technical problems, the embodiments of this application provide a dust collection device and a cleaning device. Through the design of the filter structure in the dust collection device, multi-stage filters are provided to separately and specifically separate particulate impurities of different sizes, and two dust collection chambers are used to collect large particles and small particles respectively, improving the particle separation effect and avoiding blockage of the filter element. After the cleaning device is used, it is convenient to clean the dust collection device.

[0078] For ease of understanding, first, the application scenarios of the dust collection device provided by the embodiments of this application will be described.

[0079] The dust collection device provided by the embodiments of the present application can be applied to cleaning equipment. The cleaning equipment can have a dust suction function, including but not limited to vacuum cleaners, floor washers, mite removers, etc. The cleaning equipment can be used for household cleaning, and can also be used in scenarios such as laundries, vehicle cleaning, and public area floor cleaning. The embodiments of the present application do not limit the specific product types to which the dust collection device is applied, nor the specific application scenarios of the cleaning equipment.

[0080] Figure 1 is a schematic structural diagram of the dust collection device provided by the embodiments of the present application; Figure 2 is a cross-sectional view of the dust collection device provided by the embodiments of the present application; Figure 3 is the explosion Figure 1 ; Figure 4 is the explosion Figure 2 ; Figure 5 is an assembly diagram of the first filter and the second filter in the dust collection device provided by the embodiments of the present application.

[0081] Referring to Figures 1 to 5 As shown, the present application provides a dust collection device 10. The dust collection device 10 includes a dust cup 100, a first filter 200, a second filter 300, and a third filter 400. The dust collection device 10 is used in cleaning equipment with a dust suction function. The dust cup 100 can collect the inhaled dust, and the first filter 200, the second filter 300, and the third filter 400 can all be used to filter the air flow to ensure that the air flow discharged after dust collection by the dust collection device 10 is clean without dust impurities.

[0082] Among them, the dust cup 100 has a first accommodation cavity 101, a second accommodation cavity 102, and a first air inlet 104 communicating with the first accommodation cavity 101. The first filter 200 is arranged in the first accommodation cavity 101, and the second filter 300 is arranged in the second accommodation cavity 102. The outside of the first filter 200 communicates with the first air inlet 104, and the inside of the first filter 200 communicates with the second accommodation cavity 102. The second filter 300 has a second air inlet 301 communicating with the second accommodation cavity 102. The dust cup 100 has an air outlet 105, and the air outlet 105 communicates with the inside of the second filter 300. The third filter 400 is disposed opposite to the air outlet 105.

[0083] It can be understood that the first filter 200 and the second filter 300 are respectively arranged in two independent chambers inside the dust cup 100, and the third filter 400 is arranged outside the dust cup 100. The first filter 200, the second filter 300 and the third filter 400 can perform hierarchical filtration on the airflow containing dust impurities flowing through the dust cup 100. The first filter 200 can perform the first-stage filtration on the airflow entering the dust cup 100, and the filtered airflow enters the second filter 300, where the second-stage filtration is performed by the second filter 300. Finally, the airflow flowing out of the second filter 300 will be discharged from the air outlet 105, and the third-stage filtration will be performed by the third filter 400 when discharging.

[0084] In some embodiments, a first dust collection chamber 106 is provided in the first accommodation chamber 101, and the second filter 300 surrounds to form a second dust collection chamber 302. The first dust collection chamber 106 occupies the space inside the first accommodation chamber 101, and the second dust collection chamber 302 occupies the space inside the second accommodation chamber 102.

[0085] It can be understood that the first filter 200 is used to filter impurities with larger particles, and the impurities filtered out by the first filter 200 can be collected in the first dust collection chamber 106. The second filter 300 is used to filter impurities with relatively smaller particles, and the impurities filtered out by the second filter 300 are collected in the second dust collection chamber 302. The third filter 400 then performs fine filtration on the finally discharged airflow to adsorb the remaining dust in the airflow.

[0086] Exemplarily, the third filter 400 may include a High Efficiency Particulate Air Filter (HEPA Filter). The third filter 400 can filter dust impurities in the micron level, so as to ensure the cleanliness of the air flowing out of the dust collection device 10.

[0087] Exemplarily, the first accommodation chamber 101 and the second accommodation chamber 102 may be arranged side by side along the width direction of the dust cup 100. The specific volume sizes of the first accommodation chamber 101 and the second accommodation chamber 102 are not limited in the embodiments of the present application. The first accommodation chamber 101 only needs to be able to accommodate the first filter 200 and leave a certain space to form the first dust collection chamber 106, and the second accommodation chamber 102 only needs to be able to accommodate the second filter 300.

[0088] It should be noted that in the dust collection device 10 provided by the embodiments of the present application, the air flow will first enter the first accommodation cavity 101, pass through the first filter 200 and then enter the second accommodation cavity 102. The first filter 200 can filter out relatively large dust impurities and separate them into the first dust collection cavity 106 through the cyclone channel. The air flow entering the second accommodation cavity 102 will enter the second filter 300. The second filter 300 can filter and separate the air flow that has passed through the first filter 200, settle relatively small dust impurities into the second dust collection cavity 302, and finally the air flow flowing out of the second filter 300 can flow out from the air outlet 105, be filtered by the third filter 400 and then discharged from the dust collection device 10, so that the particulate dust impurities and the air flow have a good separation effect, which can avoid the particulate dust impurities from clogging the third filter 400 and facilitate the cleaning of the dust collection device 10 after use.

[0089] First, the specific setting method and specific structure of the first filter 200 in the first accommodation cavity 101 will be described in detail below.

[0090] Figure 6 It is a schematic internal structure diagram of the dust cup in the dust collection device provided by the embodiments of the present application; Figure 7 It is a schematic diagram of the air flow circulation in the dust collection device provided by the embodiments of the present application.

[0091] Please refer to Figures 1 to 7 , in a possible implementation manner, the first accommodation cavity 101 has a cyclone channel 103, the first air inlet 104 is located on the side of the cyclone channel 103, and the cyclone channel 103 is arranged around the circumferential outer side of the first filter 200. When the air flow enters the first accommodation cavity 101 from the first air inlet 104, the centrifugal force can be used to quickly separate and settle the particulate impurities in the air flow entering the first accommodation cavity 101, improving the separation effect on the impurities.

[0092] It can be understood that the cyclone channel 103 is used to guide the air flow to circulate in the dust cup 100, and when the air flow flows along the cyclone channel 103, a cyclone air flow can be formed, thereby generating a centrifugal force to separate the impurities in the air flow. The impurities with relatively large weight and particles are thrown into the first dust collection cavity 106, facilitating the collection of the impurities. The first filter 200 is used to preliminarily filter the air flow to ensure that the impurity particles in the air flow entering the second filter 300 are relatively small, and the hair and relatively large particles are retained in the first dust collection cavity 106.

[0093] Exemplarily, a wind guiding wall may be provided in the first air inlet 104, so that the air flow entering from the first air inlet 104 can enter the cyclone channel 103 along the tangential direction of the cyclone channel 103, thereby reducing the impact of the air flow on the inner wall of the dust cup 100 when entering the first accommodating cavity 101, improving the smoothness of the air flow, and reducing the wind resistance and wind noise.

[0094] In some embodiments, the first dust collection cavity 106 may be located below the cyclone channel 103 and the first filter 200, so as to make full use of the space in the dust cup 100 to collect the impurities filtered and separated by the first filter 200, and prevent dust or impurities from adhering to the outer surface of the first filter 200.

[0095] Exemplarily, the cyclone channel 103 may have a wind guiding surface around the circumferential outer side of the first filter 200, and the wind guiding surface may extend spirally. Thus, when guiding the air flow, it can drive the particulate impurities separated by centrifugal force in the air flow to settle, making it easier for the particulate impurities to be collected in the first dust collection cavity 106.

[0096] In some embodiments, a partition wall 111 is provided inside the dust cup 100. The partition wall 111 is configured to divide the interior of the dust cup 100 into a first accommodating cavity 101 and a second accommodating cavity 102. The partition wall 111 has a communication port 112, and the first filter 200 is docked with the communication port 112 so that the inner side of the first filter 200 communicates with the second accommodating cavity 102.

[0097] It can be understood that the first accommodating cavity 101 and the second accommodating cavity 102 are not directly communicated. When the first filter 200 is docked with the communication port 112, the communication port 112 can be isolated from the first accommodating cavity 101, that is, when the air flow in the first accommodating cavity 101 outside the first filter 200 flows, it needs to pass through the first filter 200 and enter the interior of the first filter 200 before it can enter the second accommodating cavity 102 through the communication port 112. In this way, the large particulate impurities collected in the first dust collection cavity 106 can be prevented from entering the second accommodating cavity 102.

[0098] Exemplarily, the partition wall 111 may be a plate-like structure. The partition wall 111 may be integrally formed with the main structure of the dust cup 100, or the partition wall 111 may be connected to the inner wall of the dust cup 100 by means of ultrasonic welding or the like. The embodiments of the present application do not make specific limitations thereto.

[0099] In some embodiments, the first filter 200 may include a filter mesh 210 and a connecting portion 220. The connecting portion 220 is connected to the side of the filter mesh 210 and communicates with the inside of the filter mesh 210. One end of the connecting portion 220 facing away from the filter mesh 210 is docked with the communication port 112. The contour shape of the end of the connecting portion 220 facing away from the filter mesh 210 matches the contour shape of the communication port 112, thereby improving the smoothness of the airflow entering the second accommodation cavity 102 from the inside of the first filter 200.

[0100] It can be understood that the connecting portion 220 protrudes from the side of the filter mesh 210. When the first filter 200 is installed in the dust cup 100, the lower edge of the end of the connecting portion 220 can be placed on the inner edge of the communication port 112, which can limit the installation position of the first filter 200 and achieve a good sealing effect at the same time.

[0101] Exemplarily, the connecting portion 220 and the filter mesh 210 can be integrally formed, or the connecting portion 220 can be welded to the side of the filter mesh 210. The embodiments of the present application do not make specific limitations on this.

[0102] Exemplarily, the aperture of the filter holes of the filter mesh 210 can be 0.1 mm - 1 mm, including but not limited to 0.1 mm, 0.2 mm, 0.3 mm, 0.5 mm, 0.8 mm, 0.9 mm, 1 mm, etc. The embodiments of the present application do not make specific limitations on this.

[0103] In some embodiments, a protrusion 221 is provided on the side of the end of the connecting portion 220 facing the communication port 112, and the protrusion 221 is blocked on the outer edge of the communication port 112. The protrusion 221 can limit the connecting portion 220 and prevent dust and impurities from leaking out at the same time.

[0104] It can be understood that when the connecting portion 220 is docked with the communication port 112, the end of the connecting portion 220 facing the communication port 112 can be partially inserted into the communication port 112. The protrusion 221 can be blocked on the outer edge of the communication port 112 and abuts against the outer edge of the communication port 112. The protrusion 221 can extend along the side edge of the end of the connecting portion 220, and the protrusion 221 can extend the sealing path between the connecting portion 220 and the side of the communication port 112, achieving a good sealing effect.

[0105] Exemplarily, the ventilation cross-sectional area of the connecting portion 220 can gradually increase from the end connected to the filter mesh 210 to the end docked with the communication port 112, thereby forming a structure similar to a horn shape, thereby increasing the cross-section of the airflow entering the second accommodation cavity 102 from the first filter 200, making the airflow entering the second accommodation cavity 102 have a larger flow area, and the airflow can enter the second filter 300 more smoothly in the second accommodation cavity 102.

[0106] It should be noted that the filter holes of the filter screen 210 of the first filter 200 are located on the circumferential side wall. The top of the filter screen 210 can be hermetically connected to the top wall of the dust cup 100, and the bottom of the filter screen 210 can be sealed by a baffle.

[0107] In the embodiment of the present application, the airflow entering the second accommodation cavity 102 after passing through the first filter 200 will carry small particle impurities, which can be filtered by the second filter 300. The specific structure of the second filter 300 will be described in detail below.

[0108] Please continue to refer to Figures 1 to 7 , in a possible implementation, the second filter 300 may include a cyclone bracket 310 and a dust collection cylinder 320. The second air inlet 301 is located on the side of the cyclone bracket 310. The dust collection cylinder 320 is connected to one end of the cyclone bracket 310 facing away from the air outlet 105. One end of the dust collection cylinder 320 facing away from the cyclone bracket 310 abuts against the inner wall of the dust cup 100 and encloses to form a second dust collection cavity 302. In this way, the separation efficiency of particulate impurities and airflow in the second filter 300 can be improved.

[0109] It can be understood that the airflow entering the second accommodation cavity 102 can enter the interior of the cyclone bracket 310 through the second air inlet 301. The airflow can generate a cyclone airflow inside the cyclone bracket 310. Under the action of centrifugal force and gravity, small particle impurities will be deposited inside the cyclone bracket 310 and thus be collected in the second dust collection cavity 302, while the airflow after separating the impurities can be discharged from the air outlet 105 to the outside of the dust cup 100.

[0110] In some embodiments, the cyclone bracket 310 has a conical air duct 311. The second air inlet 301 is communicated with the first end of the conical air duct 311, and the second end of the conical air duct 311 faces the second dust collection cavity 302. The ventilation cross-sectional area of the second end of the conical air duct 311 is smaller than that of the first end of the conical air duct 311.

[0111] It can be understood that after the airflow enters the interior of the cyclone bracket 310, it flows from the first end to the second end of the conical air duct 311. The dust impurity particles in the airflow can settle through the conical air duct 311 to achieve a good separation effect.

[0112] Exemplarily, the dust collection cylinder 320 can be a cylindrical structure, and the dust collection cylinder 320 can be coaxially arranged with the conical air duct 311.

[0113] Exemplarily, the cyclone bracket 310 and the dust collection cylinder 320 can be integrally formed, or the cyclone bracket 310 and the dust collection cylinder 320 can be connected by ultrasonic welding or other means. The embodiment of the present application does not make specific limitations on this.

[0114] In some embodiments, an air outlet 105 is provided with a ventilation pipe 132, and at least a part of the ventilation pipe 132 is inserted into the conical air duct 311, so as to ensure that the air flow enters the ventilation pipe 132 after the impurities are fully settled and separated. Inevitably, impurity particles will enter the ventilation pipe 132.

[0115] It can be understood that when the air flow enters the cyclone bracket 310, it can first flow downward along the conical air duct 311, so that the particulate impurities are first settled under the action of centrifugal force and gravity. Thereafter, the air flow can enter the ventilation pipe 132 from the bottom of the ventilation pipe 132, flow upward along the ventilation pipe 132, and flow out from the air outlet 105.

[0116] In the embodiments of the present application, the cyclone bracket 310 can settle particles through a single conical air duct 311, or can settle particles through multiple conical air ducts 311. Different examples will be described below.

[0117] Please continue to refer to Figures 1 to 7 , in a possible implementation manner, there can be multiple second air inlets 301, and the multiple second air inlets 301 are arranged at intervals around the outer side wall of the ventilation pipe 132, and the multiple second air inlets 301 are all communicated with the conical air duct 311.

[0118] It can be understood that the cyclone bracket 310 has a structure of a single conical air duct 311, and the air flow can enter its interior from different directions on the circumferential side of the cyclone bracket 310, increasing the air flow rate.

[0119] In some embodiments, the cyclone bracket 310 has a plurality of first air guiding parts 312, and the plurality of first air guiding parts 312 are all connected to the first end of the conical air duct 311 and are distributed at intervals around the circumference of the conical air duct 311. A second air inlet 301 is formed between adjacent first air guiding parts 312, so as to guide the air flow to flow into the conical air duct 311 at the second air inlet 301, reduce the wind resistance, and improve the smoothness of the air flow.

[0120] Exemplarily, the upper end of the first air guiding part 312 can be abutted against the top wall of the dust cup 100. The upper end of the first air guiding part 312 can be ultrasonically welded to the top wall of the dust cup 100 to improve the connection reliability, and at the same time ensure good sealing performance between the top wall of the dust cup 100 and the first air guiding part 312.

[0121] In some embodiments, the first air guiding part 312 extends from the outer side of the end of the conical air duct 311 along an arc direction towards the inner side of the end of the conical air duct 311.

[0122] It can be understood that the first air guiding part 312 can guide the air flow to rotate when entering the conical air duct 311, and then form a rotating air flow in the conical air duct 311, so as to utilize the centrifugal force to achieve a better rotating sedimentation effect of dust and impurity particles.

[0123] Exemplarily, a plurality of first air guiding parts 312 are centrosymmetric with respect to the central axis of the conical air duct 311. The air flows entering from different second air inlets 301 have the same rotation direction when rotating.

[0124] It should be noted that the number of the first air guiding parts 312 can be set according to the number of the required second air inlets 301. For example, the first air guiding parts 312 can be two, three, four, five, six, etc. When the number of the first air guiding parts 312 is four, the number of the second air inlets 301 is also four. The embodiment of the present application does not make a specific limitation on the set number of the second air inlets 301.

[0125] Figure 8 It is a cross-sectional view of another structure of the dust collecting device provided by the embodiment of the present application; Figure 9 It is an assembly drawing of the first filter and the second filter of another structure of the dust collecting device provided by the embodiment of the present application;

[0126] Figure 10 It is a schematic diagram of the air flow circulation of another structure of the dust collecting device provided by the embodiment of the present application; Figure 11 It is an explosion of the first filter and the upper air outlet cover of another structure of the dust collecting device provided by the embodiment of the present application Figure 1 ; Figure 12 It is an explosion of the first filter and the upper air outlet cover of another structure of the dust collecting device provided by the embodiment of the present application Figure 2 .

[0127] Please refer to Figures 8 to 12 , in a possible implementation manner, there are a plurality of conical air ducts 311 and a plurality of air outlets 105. The plurality of air outlets 105 are arranged in one-to-one correspondence with the plurality of conical air ducts 311. There are a plurality of second air inlets 301, and the plurality of second air inlets 301 are circumferentially spaced apart around the cyclone support 310, and each conical air duct 311 is communicated with at least one second air inlet 301.

[0128] It can be understood that the cyclone support 310 can simultaneously shunt the air flow through a plurality of conical air ducts 311 and simultaneously perform the sedimentation of particulate impurities, achieving a good effect of separating particles from the air flow.

[0129] Exemplarily, each air outlet 105 is connected with a ventilation pipe 132, and each ventilation pipe 132 is inserted into the corresponding conical air duct 311.

[0130] Exemplarily, the plurality of conical air ducts 311 may be arranged in an array, including but not limited to a circular array, a linear array, etc. For example, the cyclone bracket 310 has five conical air ducts 311, and the five conical air ducts 311 are arranged in two rows, the first row is provided with two conical air ducts 311, and the second row is provided with three conical air ducts 311, and the two rows of conical air ducts 311 are mutually staggered, that is, the conical air ducts 311 of the first row correspond to the gap between the two conical air ducts 311 of the second row, wherein the conical air ducts 311 of the second row are closer to the connecting port 112 between the first filter 200 and the second accommodating chamber 102, so that the airflow entering the second accommodating chamber 102 can enter the cyclone channel 103 of the second row from the front when blowing toward the cyclone bracket 310, and at the same time be diverted to both sides, and the airflow on both sides enters the conical air ducts 311 of the first row from the back.

[0131] In some embodiments, the cyclone bracket 310 has a second air guide portion 313 and a plurality of third air guide portions 314. The second air guide portion 313 is located at the end of the cyclone bracket 310 and separates the end of the cyclone bracket 310 into a plurality of ventilation areas 313a. Each ventilation area 313a is correspondingly provided with at least one conical air duct 311 and at least one third air guide portion 314. The third air guide portion 314 is located on a side of the conical air duct 311 away from the second air guide portion 313. The second air inlet 301 is formed between the two ends of the third air guide portion 314 and the second air guide portion 313.

[0132] It is understandable that the second air guide portion 313 and the third air guide portion 314 can guide the split airflow. The second air guide portion 313 and the third air guide portion 314 respectively have an arc-shaped air guide structure, so that the airflow entering from the second air inlet 301 at both ends of the third air guide portion 314 has the same rotation direction when rotating, so as to improve the smoothness of the airflow and reduce wind resistance and wind noise.

[0133] It should be noted that the number of ventilation areas 313a formed by the second air guide 313 can be two, three or more, and the embodiment of the present application does not specifically limit this. Exemplarily, the second air guide 313 can be divided into five ventilation areas 313a, and each ventilation area 313a is correspondingly provided with a conical air duct 311 and a third air guide 314.

[0134] The structure of the dust cup 100 is described in detail below.

[0135] Please refer to Figures 1 to 7 As an optional embodiment, the dust cup 100 may include a dust cup body 110, an air duct upper cover 130 and a bottom cover 120, the air duct upper cover 130 is connected to the first end of the dust cup body 110, and the bottom cover 120 is connected to the second end of the dust cup body 110.

[0136] Exemplarily, the first filter 200 is connected to the air duct upper cover 130. The first filter 200 can be connected to the air duct upper cover 130 by ultrasonic welding.

[0137] Exemplarily, the air outlet 105 is located on the air duct upper cover 130, and the second filter 300 is connected to the air duct upper cover 130. The second filter 300 can be connected to the air duct upper cover 130 by ultrasonic welding.

[0138] It should be noted that the first filter 200 and the second filter 300 can form an integral body with the air duct upper cover 130. In this way, when disassembling and assembling with the dust cup main body 110, only by disassembling and assembling the air duct upper cover 130 can the disassembly and assembly of the first filter 200 and the second filter 300 be completed, thereby improving the convenience of the overall disassembly and assembly of the first filter 200 and the second filter 300.

[0139] In some embodiments, a receiving groove 131 is provided on the side of the air duct upper cover 130 facing away from the first filter 200, and the third filter 400 can be disposed in the receiving groove 131. The contour shape of the third filter 400 matches the contour shape of the receiving groove 131. In this way, the airflow flowing out of the dust cup 100 can be fully filtered to ensure the cleanliness of the airflow.

[0140] Exemplarily, a handle structure can be provided above the third filter 400 to facilitate the user to disassemble the third filter 400 from the dust cup 100.

[0141] In some embodiments, the dust cup 100 may further include a first sealing member 140. The first sealing member 140 is disposed around the outer circumference of the air duct upper cover 130, and the first sealing member 140 abuts against the inner wall of the dust cup main body 110, thereby improving the sealing performance of the dust cup 100.

[0142] Exemplarily, the first sealing member 140 can be a sealing ring made of elastic materials such as rubber and silica gel, and the embodiments of the present application do not make specific limitations on its material.

[0143] In a possible implementation manner, the dust collection device 10 may further include a flexible dust blocking piece 150. The dust blocking piece 150 has a clamping portion 151, and a clamping groove 107 is provided on the side of the first air inlet 104. The clamping portion 151 is clamped in the clamping groove 107. The dust blocking piece 150 blocks the first air inlet 104, thereby preventing the dust and impurities in the dust cup 100 from flowing back or falling back from the first air inlet 104.

[0144] It can be understood that when the fan on the cleaning device starts to suck dust, a negative pressure will be generated inside the dust cup 100, that is, the pressure on the side of the dust blocking piece 150 facing outside the first air inlet 104 is greater than the pressure inside the dust cup 100. In this way, the dust blocking piece 150 will be elastically deformed and bent under the action of the pressure difference, so as to open the first air inlet 104 and allow air flow to enter the inside of the dust cup 100. When the fan of the cleaning device stops, the dust blocking piece 150 will rebound and block the first air inlet 104 to prevent dust and impurities in the dust cup 100 from leaking out.

[0145] In some embodiments, the dust cup 100 may further include a second seal 160. The second seal 160 is attached to the surface of the bottom cover 120 facing the inside of the dust cup body 110, and the end wall of the second dust collection chamber 302 abuts against the second seal 160, so as to improve the sealing performance of the second dust collection chamber 302.

[0146] Wherein, the second seal 160 may cover the side of the bottom cover 120 facing the dust cup body 110, and the end of the wall of the second dust collection chamber 302 may abut against the second seal 160, so as to ensure good sealing performance between the second dust collection chamber 302 and other spaces in the second accommodation chamber 102.

[0147] In addition, the partition wall 111 may abut against the second seal 160, so as to ensure good sealing performance between the first accommodation chamber 101 and the second accommodation chamber 102.

[0148] Exemplarily, the material of the second seal 160 may be a sealing cotton made of ethylene-vinyl acetate copolymer (EVA). The second seal 160 may also adopt other flexible sealing materials, and the embodiments of the present application do not make specific limitations thereto.

[0149] In some embodiments, the dust cup 100 may further include a locking member 170 and an elastic member 180. The locking member 170 is rotatably connected to the outer side wall of the dust cup body 110, and the elastic member 180 abuts between the locking member 170 and the outer side wall of the dust cup body 110; a locking portion 171 is provided at the first end of the locking member 170, and a locking groove 121 is provided at the edge of the bottom cover 120. The locking portion 171 can be engaged with or separated from the locking groove 121 to lock or unlock the bottom cover 120 relative to the dust cup body 110, so as to improve the convenience of opening and closing the bottom cover 120 and facilitate the cleaning and cleaning of the dust cup 100.

[0150] It can be understood that an installation groove may be provided on the outer sidewall of the dust cup body 110, an installation hole may be provided on the sidewall of the installation groove, a rotating shaft may be provided on the locking member 170, and the rotating shaft may be rotatably inserted into the installation hole so that the locking member 170 can rotate relative to the dust cup body 110. The elastic member 180 and the locking groove 121 respectively correspond to the two ends of the locking member 170. When pressing one end of the locking member 170 corresponding to the elastic member 180, the elastic member 180 is compressed, the locking member 170 rotates, and the locking portion 171 is separated from the locking groove 121. When the locking member 170 is not pressed, the elastic member 180 rebounds, and under the elastic force of the elastic member 180, the locking member 170 rotates back, and the locking portion 171 is engaged with the locking groove 121.

[0151] Exemplarily, a limiting groove or a limiting protrusion may be respectively provided on the dust cup body 110 and the locking member 170, and the elastic member may be a spring, and the two ends of the elastic member 180 respectively correspond to the limiting groove or the limiting protrusion.

[0152] It should be noted that the bottom cover 120 may be rotatably connected to the dust cup body 110, and the rotation axis of the bottom cover 120 and the dust cup body 110 may be provided on the other side opposite to the locking member 170, so as to realize the rotational opening and closing of the bottom cover 120 relative to the dust cup body 110 when the locking member 170 is unlocked.

[0153] Figure 13 Cross-section of the cleaning device provided by the embodiment of the present application Figure 1 ; Figure 14 Cross-section of the cleaning device provided by the embodiment of the present application Figure 2 .

[0154] Please refer to Figure 13 and Figure 14 and in combination with Figure 1 device Figure 7 , the embodiment of the present application provides a cleaning device, which includes a device main body 20 and the dust collection device 10 in the above technical solution, and the dust collection device 10 is detachably connected to the device main body 20.

[0155] It can be understood that when the dust collection device 10 is applied to the cleaning device, the first air inlet 104 can be communicated with the dust suction port of the cleaning device, and the air outlet 105 of the dust collection device 10 can be communicated with the fan assembly in the cleaning device. Through the negative pressure generated after the fan assembly is started, suction is generated at the dust suction port, and the airflow with impurities is sucked into the dust collection device 10 for separation.

[0156] One or more positioning ribs may be provided on the outer side of the dust cup 100 of the dust collection device 10. The positioning ribs may correspond to the structures on the device main body 20, so as to facilitate the installation and positioning of the dust collection device 10 and the device main body 20. The detachable manner between the dust collection device 10 and the device main body 20 may adopt a structure in which a buckle and a spring cooperate, and the embodiments of the present application do not make specific limitations thereto.

[0157] It should be noted that the cleaning device provided by the embodiments of the present application includes all the technical solutions and technical effects of the aforementioned dust collection device 10, which will not be elaborated herein.

[0158] The embodiments of the present application provide a dust collection device and a cleaning device. The dust collection device includes a dust cup, a first filter, a second filter, and a third filter. The dust cup has a first accommodation cavity, a second accommodation cavity, and a first air inlet communicating with the first accommodation cavity. The first filter is disposed in the first accommodation cavity, and the second filter is disposed in the second accommodation cavity. The outer side of the first filter communicates with the first air inlet, and the inner side of the first filter communicates with the second accommodation cavity. The second filter has a second air inlet communicating with the second accommodation cavity. The dust cup has an air outlet, and the air outlet communicates with the inside of the second filter. The third filter is disposed opposite to the air outlet; a first dust collection cavity is provided in the first accommodation cavity, and the second filter surrounds to form a second dust collection cavity. Granular dust impurities have a good separation effect from the air flow, which can avoid the blockage of the third filter by granular dust impurities and facilitate the cleaning of the dust collection device after use.

[0159] 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 for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A dust collecting device (10), characterized in that: The dust collecting device (10) comprises a dust cup (100), a first filter (200), a second filter (300) and a third filter (400); the dust cup (100) has a first accommodating cavity (101), a second accommodating cavity (102) and a first air inlet (104) connected to the first accommodating cavity (101); the first filter (200) is arranged in the first accommodating cavity (101), and the second filter (300) is arranged in the second accommodating cavity (102); The outer side of the first filter (200) is connected to the first air inlet (104), the inner side of the first filter (200) is connected to the second accommodating chamber (102), the second filter (300) has a second air inlet (301) connected to the second accommodating chamber (102), the dust cup (100) has an air outlet (105), the air outlet (105) is connected to the inside of the second filter (300), and the third filter (400) is arranged opposite to the air outlet (105); a first dust collecting chamber (106) is provided in the first accommodating chamber (101), and the second filter (300) is surrounded to form a second dust collecting chamber (302).

2. The dust collecting device (10) according to claim 1, characterized in that: The first accommodating chamber (101) has a cyclone channel (103); the first air inlet (104) is located on the side of the cyclone channel (103); and the cyclone channel (103) is arranged around the circumferential outer side of the first filter (200).

3. The dust collecting device (10) according to claim 2, characterized in that: The first dust collecting chamber (106) is located below the cyclone channel (103) and the first filter (200).

4. The dust collecting device (10) according to claim 1, characterized in that: A partition wall (111) is provided inside the dust cup (100), and the partition wall (111) is configured to divide the inside of the dust cup (100) into the first accommodating chamber (101) and the second accommodating chamber (102); the partition wall (111) has a connecting port (112), and the first filter (200) is connected to the connecting port (112) so that the inner side of the first filter (200) is connected to the second accommodating chamber (102).

5. The dust collecting device (10) according to claim 4, characterized in that: The first filter (200) comprises a filter screen (210) and a connecting portion (220); the connecting portion (220) is connected to the side of the filter screen (210) and is connected to the inner side of the filter screen (210); one end of the connecting portion (220) facing away from the filter screen (210) is connected to the connecting port (112); and the contour shape of the end of the connecting portion (220) facing away from the filter screen (210) matches the contour shape of the connecting port (112).

6. The dust collecting device (10) according to claim 5, characterized in that: A protrusion (221) is provided on the side of the communication portion (220) facing one end of the communication opening (112), and the protrusion (221) is blocked at the outer edge of the communication opening (112).

7. The dust collecting device (10) according to any one of claims 1 to 6, characterized in that: The second filter (300) includes a cyclone bracket (310) and a dust collecting tube (320); the second air inlet (301) is located on the side of the cyclone bracket (310); the dust collecting tube (320) is connected to the end of the cyclone bracket (310) away from the air outlet (105), and the end of the dust collecting tube (320) away from the cyclone bracket (310) is in contact with the inner wall of the dust cup (100) and is surrounded to form the second dust collecting chamber (302).

8. The dust collecting device (10) according to claim 7, characterized in that: The cyclone bracket (310) has a conical air duct (311), the second air inlet (301) is connected to the first end of the conical air duct (311), and the second end of the conical air duct (311) faces the second dust collecting chamber (302); the ventilation cross-sectional area of ​​the second end of the conical air duct (311) is smaller than the ventilation cross-sectional area of ​​the first end of the conical air duct (311).

9. The dust collecting device (10) according to claim 8, characterized in that: The air outlet (105) is provided with a ventilation pipe (132), and the ventilation pipe (132) is at least partially inserted into the conical air duct (311).

10. The dust collecting device (10) according to claim 9, characterized in that: There are a plurality of second air inlets (301), and the plurality of second air inlets (301) are arranged at intervals around the outer wall of the ventilation pipe (132); and the plurality of second air inlets (301) are all connected to the conical air duct (311).

11. The dust collecting device (10) according to claim 10, characterized in that: The cyclone bracket (310) has a plurality of first air guide portions (312); the plurality of first air guide portions (312) are all connected to the first end of the conical air duct (311) and are distributed at intervals around the circumference of the conical air duct (311); and the second air inlet (301) is formed between adjacent first air guide portions (312).

12. The dust collecting device (10) according to claim 11, characterized in that: The first air guide portion (312) extends from the outer side of the end of the conical air duct (311) along an arc direction toward the inner side of the end of the conical air duct (311); and the plurality of first air guide portions (312) are centrally symmetrical with respect to the central axis of the conical air duct (311).

13. The dust collecting device (10) according to claim 8, characterized in that: There are a plurality of conical air ducts (311), and a plurality of air outlets (105), and the plurality of air outlets (105) are arranged in a one-to-one correspondence with the plurality of conical air ducts (311); there are a plurality of second air inlets (301), and the plurality of second air inlets (301) are distributed at intervals around the circumference of the cyclone bracket (310), and each of the conical air ducts (311) is connected to at least one of the second air inlets (301).

14. The dust collecting device (10) according to claim 13, characterized in that: The cyclone support (310) has a second air guide portion (313) and a plurality of third air guide portions (314); the second air guide portion (313) is located at the end of the cyclone support (310) and divides the end of the cyclone support (310) into a plurality of ventilation areas (313a), and each ventilation area (313a) is correspondingly provided with at least one of the conical air ducts (311) and at least one of the third air guide portions (314); The third air guide portion (314) is located on a side of the conical air duct (311) away from the second air guide portion (313), and the second air inlet (301) is formed between the two ends of the third air guide portion (314) and the second air guide portion (313).

15. The dust collecting device (10) according to any one of claims 1 to 6, characterized in that: The dust cup (100) comprises a dust cup body (110), an air duct upper cover (130) and a bottom cover (120), wherein the air duct upper cover (130) is connected to a first end of the dust cup body (110), and the bottom cover (120) is connected to a second end of the dust cup body (110); The first filter (200) is connected to the air duct upper cover (130); and / or the air outlet (105) is located on the air duct upper cover (130), and the second filter (300) is connected to the air duct upper cover (130).

16. The dust collecting device (10) according to claim 15, characterized in that: The side of the air duct upper cover (130) facing away from the first filter (200) has a receiving groove (131), and the third filter (400) is arranged in the receiving groove (131); the contour shape of the third filter (400) matches the contour shape of the receiving groove (131).

17. The dust collecting device (10) according to claim 15, characterized in that: The dust cup (100) further comprises a first seal (140), wherein the first seal (140) is arranged around the circumferential outer side of the air duct upper cover (130), and the first seal (140) abuts against the inner wall of the dust cup body (110).

18. The dust collecting device (10) according to claim 15, characterized in that: The dust cup (100) also includes a second seal (160), which is attached to a side surface of the bottom cover (120) facing the inside of the dust cup body (110), and the end cavity wall of the second dust collecting cavity (302) abuts against the second seal (160).

19. The dust collecting device (10) according to claim 15, characterized in that: The dust cup (100) further comprises a locking member (170) and an elastic member (180), wherein the locking member (170) is rotatably connected to the outer wall of the dust cup body (110), and the elastic member (180) abuts between the locking member (170) and the outer wall of the dust cup body (110); the first end of the locking member (170) comprises a locking portion (171), and the edge of the bottom cover (120) comprises a locking groove (121), and the locking portion (171) can be engaged with or separated from the locking groove (121) so that the bottom cover (120) is locked or unlocked relative to the dust cup body (110).

20. A cleaning device, characterized in that: It comprises an equipment body (20) and a dust collecting device (10) as described in any one of claims 1 to 19, wherein the dust collecting device (10) is detachably connected to the equipment body (20).

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